CN109107206A - A kind of continous way feed liquor multiple-effect vacuum method for concentration based on heat pump - Google Patents
A kind of continous way feed liquor multiple-effect vacuum method for concentration based on heat pump Download PDFInfo
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- CN109107206A CN109107206A CN201810921679.6A CN201810921679A CN109107206A CN 109107206 A CN109107206 A CN 109107206A CN 201810921679 A CN201810921679 A CN 201810921679A CN 109107206 A CN109107206 A CN 109107206A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0011—Heating features
- B01D1/0041—Use of fluids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0064—Feeding of liquid into an evaporator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/26—Multiple-effect evaporating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention belongs to be concentrated in vacuo technical field, it is related to a kind of continous way feed liquor multiple-effect vacuum method for concentration based on heat pump, weak solution is introduced into starting heater under the driving that solution feed pumps and is preheated, starting component is turned off to preheat in heat pipe condenser, weak solution after preheating is under the driving of solution pump, it sequentially enters in n effect thickening apparatus and is concentrated by the first monitor component, due to being low-pressure state in the concentration tube of thickening apparatus, solution can be realized low-temperature boiling, concentrate and solvent vapour are generated simultaneously, the liquid outlet that concentrate is arranged by thickening apparatus bottom, enter next effect thickening apparatus under the driving of pull of vacuum, so after concentration repeatedly, final concentrate can be obtained；Heat pump, heat pipe energy-saving technology and vacuum concentration technology are organically combined, it is energy-efficient, production efficiency is improved, tube wall incrustation is avoided, is cleaned without dead angle, output product cleaning is pollution-free.
Description
Technical field:
The invention belongs to be concentrated in vacuo technical field, it is related to a kind of continuous feed liquor type vacuum concentration process of multiple-effect, especially
A kind of continous way feed liquor multiple-effect vacuum method for concentration based on heat pump can also changed suitable for the concentration of medicinal sticky liquid
It is used in the production such as work, food.
Background technique:
Currently, in certain thick liquids, such as in inspissated juice, ointment production process, concentration process is often related to,
Mode exactly evaporates solvent, is generally to directly heat by the way of, can also be by reducing environmental pressure, so that concentration tank
There is certain vacuum degree, solution is easy evaporation in a low voltage state, the production for drug, when encountering the technique for needing to be concentrated
When, since drug is there are thermal sensitivity, non-refractory needs to carry out low-temp low-pressure evaporation.During evaporation, often using big
Type evaporation boiler, as CN205948395U discloses a kind of economic benefits and social benefits rapid concentration device, including steam heater, the steam heater
It is connect with an effect enriched chamber by pipeline, the upper end of effect enriched chamber is equipped with secondary steam pipe, effect enriched chamber
Being arranged side by side has two effect enriched chambers, and secondary steam pipe is plugged on the inner cavity of two effect enriched chambers, and secondary steam pipe lower end is symmetrically set
It is equipped with agitating paddle, the end of two agitating paddles is mounted on for being in arc derived from two opposite directions by secondary steam
The lower end of air jet pipe, an effect enriched chamber and two effect enriched chambers is respectively connected with outlet tube, and valve is equipped on outlet tube, and described two
It imitates enriched chamber and condenser is connected with by pipeline, the lower end of condenser is equipped with water tank, which can be right
Two effect enriched chamber's herb liquids are stirred, and are greatly improved the working efficiency of two effect enriched chambers, are compared existing double effect concentration
The thickening efficiency of device is higher；But the steam pipe lower end of the economic benefits and social benefits rapid concentration device be symmetrically arranged with agitating paddle for accelerate it is dense
It contracts and avoids close to the solidification fouling of the position of container wall, the equipment for being added to blender can consume the additional energy, and stir
The junction for mixing device and evaporation boiler can not seal well, can then lose vacuum degree for vacuum low-pressure concentration, also hold
Dust is easily caused to enter；The heat source that existing overwhelming majority concentrator uses is high temperature and high pressure steam, such as CN206342932U
Disclose a kind of Multi-effect concentration equipment, including concentration kettle one, concentration kettle two, concentration kettle three, condenser, heat exchanger one, heat exchanger
Two, heat exchanger three, heat exchanger four, material pump, vacuum pump, the concentration kettle one, concentration kettle two and concentration kettle three pass through pipeline successively
It is composed in series one group of Multi-effect concentration device, then is successively connected with heat exchanger one and condenser, is finally controlled to a vacuum pump；It is described dense
Contracting kettle one, concentration kettle two and concentration kettle three are separately connected heat exchanger two, heat exchanger three and heat exchanger four, and the heat exchanger two changes
Hot device three and heat exchanger four are sequentially connected in series again, are finally connect with material pump two；Between the concentration kettle one and concentration kettle two, concentration kettle
Material pump three is connected between two and concentration kettle three；Heat exchanger one is connect with material pump one, uses forcing pump circulating-heating, is saved and is steamed
Vapour 60% or so, clean environment is comfortable；Virgin material is repeatedly exchanged heat before entering concentration kettle, further improves thermal energy
Utilization rate, although the concentrator has saved the energy, its heat source remains as steam, consumption after using multiple-effect scheme
Or high-grade energy needs to reduce temperature and pressure using steam again to meet technique requirement, this just has lost one
Part high-grade energy；Also have by spraying, spraying mode carries out the case of flash distillation process, as described in CN203803126U
A kind of spraying concentrator, especially a kind of equipment of liquid pressure-reducing spray concentration, heater top duct end are equipped with spray head, make
Solution can be flashed when initially entering to enriched chamber, while increasing heat and mass area, use low pressure atomizing
The mode of concentration can obtain preferable concentrated effect really at the very start, but the mode of this spray concentration is obviously not
It is suitable for use on Multi-effect concentration, reason is that after concentrate constantly thickens, viscosity is larger, extremely be easy to cause spray head stifled
Plug, equipment are stopped transport.Heat pump research has many decades history in China, has up to the present had developed moderate and high temperature heat, heat pump
Heat can be given to the place for needing heat by heat pump fluid circulation conveying, compared to more traditional steam source, energy-saving effect
Very significant, heat pump is still a notch in vacuum concentration field, and using few, embodiment is indefinite.Heat pipe is as one
The efficient energy-saving equipment of kind, technology is gradually matured, but at present in vacuum concentration field, also there are no make heat pipe
The precedent used.
Summary of the invention:
It is an object of the invention to overcome disadvantage of the existing technology, design provides a kind of novel company based on heat pump
Continuous formula feed liquor multiple-effect vacuum method for concentration, solves the problems, such as the energy regenerating in vacuum concentration field, by heat pump and hot pipe technique phase
It is implemented in combination with efficient, energy saving, safety in production.
To achieve the goals above, the present invention is realized in continous way feed liquor multiple-effect vacuum inspissator, specific concentration process are as follows:
(1) it is first turned on each valve, it is ensured that concentration route is smooth, then opens steam clean valve, steam is enable to clean
Whole equipment；
(2) after cleaning, steam off purge valve opens vacuum pump, by the pipe internal pressure of the 1st effect thickening apparatus concentration tube
Power is reduced to -0.07Mpa, and respectively the overpressure of effect thickening apparatus successively further decreases 0.005Mpa thereafter；
(3) after each effect thickening apparatus vacustat, it is on component, keeps the catalyst carrier temperature for starting heater steady
70 DEG C are scheduled on, solution feed pump is opened, solution is entered in starting heater tube side, heated, 65 DEG C of outlet temperature；
(4) solution after heating through heat pipe evaporator and the second monitor component enter the concentration tube of the 1st effect thickening apparatus into
Liquid mouth, heat pump cycle and heat pipe circulation are to close at this time, are not heated；Solution after heating enters the 1st effect concentration
Boiling is got started in the concentration tube of component, the solvent vapour of generation of boiling is since buoyancy lift starts to float, via steam (vapor) outlet
It enters in the heating tube of the 2nd effect thickening apparatus, inlet vapor temperature is also 65 DEG C, in the heating tube of the 2nd effect thickening apparatus
Concentration tube is heated, while undergoing phase transition and being condensed into solvent liquid, the condensate liquid that solvent liquid imitates thickening apparatus via the 2nd
Throttle valve flows to condensate liquid collector, by the 1st effect thickening apparatus concentration tube discharge 1 effect concentrate under the driving of pull of vacuum into
Enter into the concentration tube of the 2nd effect thickening apparatus, in the 2nd effect thickening apparatus, the heat of solution is by the 1st effect thickening apparatus discharge
Solvent vapour is provided by phase transformation, while vacuum pump has built the opposite 1st effect lower pressure of thickening apparatus, so that concentration can
Continue down, is concentrated repeatedly until the solution and solvent vapour of the (n-1)th effect have respectively entered the n-th effect thickening apparatus
Concentration tube and heating tube, n-th, which imitates heat required for the concentration tube of thickening apparatus, is still provided by solvent vapour, produced by concentration
Final concentrate concentrate draw material pump driving under enter concentrate low-pressure liquid storing tank, and then enter next step process journey
The solvent vapour of sequence, generation enters evaporator with heat pump by steam (vapor) outlet, exchanges heat；
(5) after having detected that solvent vapour enters evaporator with heat pump and stability of flow, start heat pump cycle group at once
Part, evaporator with heat pump starts to condense solvent vapour at this time, the heat pump refrigerant Extraction solvent steam of evaporator with heat pump
Latent heat of phase change, the heating tube of the 1st effect thickening apparatus is recycled to via heat pump compressor, and heat pump refrigerant steam carries out heat release, becomes
At refrigerant liquid, refrigerant liquid is recycled to evaporator with heat pump via throttling of heat pump valve, repeatedly；When detect the 1st effect
The heating tube outlet temperature of thickening apparatus is stablized at 70 DEG C, and starting component is closed；
(6) when having detected solvent liquid from evaporator with heat pump outflow and having stablized, condensate liquid is reached through condensate liquid throttle valve
Collector, and when the condensation flow quantity that enters further into condensate liquid general pipeline of condensate liquid collector reaches maximum, open heat pipe circulation
Pump, heat pipe circulation bring into operation, and realize the recycling of condensate liquid sensible heat, and act on the preheating of weak solution, the weak solution refers to
It pumps and enters from solution feed, the material solution after steam clean valve；
(7) after yield to be concentrated reaches goal-selling requirement, it is first shut off solution feed pump, stops charging；When detecting
After the concentration tube of 1st effect thickening apparatus is flowed out without solution, the operation of heat pump cycle and heat pipe circulation is closed, while opening water
Cold heat exchanger closes water cooling heat exchanger after detecting that drain valve is flowed out without condensate liquid；When detecting that concentrate draws material
After pump is also flowed out without concentrate, closes concentrate and draw material pump；
(8) after all components are out of service, cleaning is executed, is repeated the above steps.
The main structure of continous way feed liquor multiple-effect vacuum inspissator of the present invention is dense including the 1st effect thickening apparatus, the 2nd effect
Contracting component, the 3rd effect thickening apparatus ..., (n-1)th effect thickening apparatus, n-th effect thickening apparatus, vacuum pump, solution feed pump, steam
Vapour purge valve, starting heater, heat pipe condenser, the first monitor component, solution pump, the second monitor component, evaporator with heat pump, heat
Pump compressor, throttling of heat pump valve, the 2nd effect condensate liquid throttle valve, heat pipe circulating pump, condensate liquid collector, water cooling heat exchanger, condensate liquid
Solution pump, heat pipe evaporator, drain valve, condensate liquid low-pressure liquid storing tank, condensate liquid general pipeline, concentrate low-pressure liquid storing tank, concentrate
Draw material pump and concentrate collector, wherein evaporator with heat pump, heating tube, throttling of heat pump valve and heat pump compressor form heat pump cycle group
Part, heat pipe condenser, heat pipe evaporator, heat pipe circulating pump form heat pipe recirculation assembly, external cold source and water cooling heat exchanger composition
Water-cooling circulating component, external heat source and starting heater composition starting component；Solution feed pump is connect with starting heater conduit,
The pipeline for connecting feed pump and starting between heater is equipped with steam clean valve, is used for cleaning equipment；Heat pipe condenser difference
It is connected to heat pipe starter, solution pump and heat pipe evaporator, heat pipe circulating pump is equipped between heat pipe condenser and heat pipe evaporator,
The first monitor component is equipped between heat pipe condenser and solution pump, solution pump is connected to the top of the 1st effect thickening apparatus, solution pump
The second monitor component is equipped between the 1st effect thickening apparatus, evaporator with heat pump imitates adding for thickening apparatus side surface upper part with the 1st respectively
Hot working fluid entrance, the heating working medium outlet of side lower, the heating working medium outlet of the 2nd effect thickening apparatus side lower and water cooling
Heat exchanger tube connection, the pipeline between evaporator with heat pump and the 1st effect thickening apparatus side surface upper part heating working medium entrance are equipped with
Heat pump compressor, the pipeline between evaporator with heat pump and the 1st effect thickening apparatus side lower heating working medium outlet are equipped with heat pump
Throttle valve, the pipeline between evaporator with heat pump and the 2nd effect thickening apparatus side lower heating working medium outlet are equipped with the 2nd effect and condense
Liquid throttle valve；2nd effect thickening apparatus, the 3rd effect thickening apparatus ..., (n-1)th effect thickening apparatus, n-th effect thickening apparatus bottom
Be connected to respectively with condensate liquid header tube, the 1st effect thickening apparatus, the 2nd effect thickening apparatus, the 3rd effect thickening apparatus ..., (n-1)th
Imitate thickening apparatus, the n-th effect thickening apparatus includes concentration tube, heating tube, third monitor component, condensate liquid throttle valve and concentrate
Regulating valve, the concentration tube both ends of slim-lined construction have an end socket, and concentration tube is provided with by compression solution, heating tube using casing,
It is arranged outside concentration tube around pipe or other forms, the concentration tube overhead vapor outlet of the 1st effect thickening apparatus and the 2nd effect concentration group
The heating tube side surface upper part heating working medium entrance of part is connected to, the concentration tube side surface upper part of bottom liquid outlet and the 2nd effect thickening apparatus
Inlet connection, the concentration tube side surface upper part feed liquor of the concentration bottom of the tube liquid outlet of the 1st effect thickening apparatus and the 2nd effect thickening apparatus
Third monitor component and concentrate regulating valve, the company between the 2nd effect thickening apparatus and the 3rd effect thickening apparatus are successively arranged between mouthful
The connection connect between the 1st effect thickening apparatus and the 2nd effect thickening apparatus is identical, and so on, until being connected to the n-th effect concentration group
Part, the 2nd effect thickening apparatus, the 3rd effect thickening apparatus ..., (n-1)th effect thickening apparatus, n-th effect thickening apparatus heating tube side
Condensate liquid throttle valve is equipped between the outlet of lower part heating working medium and condensate liquid collector；The top of n-th effect thickening apparatus is equipped with true
Sky pump vacuumizes convenient for pressure maintaining and before opening；Steam (vapor) outlet at the top of n-th effect thickening apparatus is connected to water cooling heat exchanger pipeline,
The liquid outlet of bottom is connected to by concentrate collector with concentrate low-pressure liquid storing tank, and concentrate collector is equipped with concentrate and draws material
Pump, condensate liquid collector are connected to condensate liquid general pipeline, and condensate liquid general pipeline is pumped equipped with condensate solution, condensate solution pump and heat pipe
Evaporator connection, heat pipe evaporator are connected to condensate liquid low-pressure liquid storing tank pipeline, heat pipe evaporator and condensate liquid low-pressure liquid storing tank
Between pipeline be equipped with drain valve.
External heat source of the present invention includes electric heating heat source, workshop waste heat or high-pressure steam heat, and the heat of heat source is by heat-carrying
Starting heater is taken in agent to, delivers heat to weak solution, and the catalyst carrier after use is pumped back to heat source by external circulation, then
Secondary heat absorption utilizes again, and the weak solution refers to be entered from feed pump, the material solution after steam clean valve.
It is of the present invention 1st effect thickening apparatus the 1, the 2nd imitate thickening apparatus, the 3rd effect thickening apparatus ..., (n-1)th effect concentration
It is equipped with steam (vapor) outlet at the top of component, the n-th effect thickening apparatus, left side is successively arranged inlet, heater from top to bottom
Matter entrance, right side are equipped with heating working medium outlet, and bottom is equipped with liquid outlet；Guarantor is additionally provided at the top of n-th effect thickening apparatus
Press mouth.
The arrangement form of thickening apparatus of the present invention is single channel or multichannel in the longitudinal direction, is horizontally single-action or more
It imitates, the multiple-effect arrangement in transverse direction is placed to be vertical, is from left to right followed successively by the 1st, 2 ... n and is imitated, and is provided power by pull of vacuum and is mentioned
For power；Or placed for inclination, stacking, it is from top to bottom followed successively by the 1st, 2 ... n effect, provides power by gravity and pull of vacuum.
The present invention realizes the working principle of low-temperature multi-effect concentration are as follows: thickening apparatus is imitated from the 1st effect thickening apparatus to n-th,
Pressure in concentration tube has certain vacuum degree and pressure is gradually to successively decrease, and weak solution is by starting heater, heat pipe condensation
Heating, the preheating of device, are driven by solution pump, are entered in concentration tube, since pressure is low, solution low boiling point be may be implemented low
Temperature boiling, low pressure concentration, Multi-effect concentration.
The concentration tube inner upper end of every effect thickening apparatus of the present invention is equipped with exhaust structure, and steam (vapor) outlet is made only to go out to steam
Vapour, avoid because boil solution is also brought into steam pipe caused by run bad, exhaust structure is centrifugation exhaust pipe, orifice plate or foam removal net
Deng.
The operation principle of the present invention is that: weak solution initially enters starting heater, equipment under the driving that solution feed pumps
When just opening, weak solution is preheated in starting heater, after start completion, starting component is closed, in heat pipe condenser
Preheating, the solution after preheating sequentially enter the 1st effect thickening apparatus, the 2nd effect under the driving of solution pump, by the first monitor component
Thickening apparatus, the 3rd effect effect of thickening apparatus ... (n-1)th thickening apparatus, n-th are imitated to be concentrated in thickening apparatus, due to concentration group
It is low-pressure state in the concentration tube of part, solution can be realized low-temperature boiling, while generate concentrate and solvent vapour, and concentrate is logical
The liquid outlet for crossing concentration component bottom setting enters next effect thickening apparatus under the driving of pull of vacuum, and so concentration is multiple
Afterwards, final concentrate can be obtained.
The present invention organically combines heat pump and heat pipe energy-saving technology with concentration technology, the heating outside thickening apparatus
It manages, the intraductal working medium in heating tube from top to bottom flows, and the intraductal working medium of the 1st effect thickening apparatus heating tube is heat pump refrigerating
Agent, heat pump refrigerant steam are entered through heat pump compressor by heating working medium entrance, and refrigerant liquid is condensed into after complete heat release, then
Heated sender property outlet connects throttling of heat pump valve, so that evaporation that refrigerant liquid is absorbed heat from evaporator with heat pump, becomes making again
Refrigerant vapor is recycled；Heating working medium in the heating tube of subsequent concentration component is that the vapor outlet port of upper effect thickening apparatus goes out
The solvent vapour come, it is condensate liquid that solvent vapour, which is condensed into solvent liquid after complete heat release in heating tube, heated working medium
Outlet connects condensate liquid collector, and condensate liquid collector connects heat pipe evaporator, and by condensate liquid sensible heat transfer to heat-pipe working medium, heat passes through
The carrying of heat-pipe working medium provides power by heat pipe circulating pump, is transferred to weak solution in heat pipe condenser, reaches preheating purpose；N-th
It imitates the solvent vapour generated in the concentration tube of thickening apparatus and does not enter condensate liquid collector, it will be transferred to via solvent vapour collector
It in evaporator with heat pump, exchanges heat with heat pump refrigerant liquid, realizes the condensation of solvent vapour and the steaming of heat pump refrigerant liquid
Hair, while the latent heat of refrigerant suction will provide heat through heat pump cycle component for the weak solution of the 1st effect thickening apparatus；Condensation
Solvent liquid afterwards enters back into condensate liquid collector, and then enters condensate liquid general pipeline, unified to evaporate through condensate solution pump, heat pipe
Device, drain valve are recycled to condensate liquid low-pressure liquid storing tank, enter next process flow；N-th effect thickening apparatus comes out final dense
Contracting liquid enters concentrate low-pressure liquid storing tank under the driving that concentrate draws material pump, and then enters next step process.
External cold source of the present invention includes the other forms such as Natural Water, cool storage material or air-source.
The present invention can be carried out under multichannel operating condition using following four scheme can be used: A, branch independence heat pump, branch are only
Vertical heat pipe；B, branch independence heat pump, the single heat pipe in main line；C, the single heat pump in main line, branch independence heat pipe；D, the single heat in main line
Pump, the single heat pipe of branch；Each scheme can also carry out free combination, and can enable a heat pump cycle component is two-way or more the
1 effect thickening apparatus provides heat, and can also enable two branch heat pump condensers of a main line heat pump cycle component is one jointly
A branch the 1st imitates thickening apparatus heating；Can enable condensate liquid by condensate liquid general pipeline enter in heat pipe evaporator with heat pipe work
Matter heat exchange, heat-pipe working medium enter back into each branch heat pipe condensation wherein heat release, can also enable condensate liquid by condensate liquid collector into
Enter each branch heat pipe evaporator, is uniformly collected after completing heat exchange, each branch heat-pipe working medium for absorbing heat enters heat
Plumber's matter collector, enters main line heat pipe condenser under the driving of solution pump, and heat is completed before weak solution enters each branch
Pipe heating, combining form multiplicity is variable, and flexibility is high, is suitable for various production status.
First monitor component, the second monitor component and third monitor component of the present invention include liquid-sighting glass, liquid valve,
Traffic monitoring adjuster and density tester, liquid valve, flow regulator, liquid-sighting glass are sequentially connected, and density tester is data
Sensor is placed on after liquid valve, the first monitor component, the second monitor component and third monitor component and external power control cabinet
It is connected, to facilitate monitoring concentration liquid status and adjusting device.
Compared with prior art, the present invention heat pump, heat pipe energy-saving technology and vacuum concentration technology are organically combined,
It is energy-efficient, considerably reduce high-grade energy required for concentration；And using the mode of continuous feed liquor, life is greatly improved
Produce efficiency；By way of outside around pipe heating in conjunction with the elongated boiling in ducts of low pressure, tube wall incrustation is avoided, stirring is eliminated
Device, thus avoid connecting because of blender with equipment not closely caused by dust enter equipment；Since the solution place of flowing through all uses
Unified caliber can accomplish cleaning without dead angle, output product cleaning nothing during being cleaned using high temperature and high pressure steam
Pollution.
Detailed description of the invention:
Fig. 1 is the main structure schematic illustration of continous way feed liquor multiple-effect vacuum inspissator of the present invention.
Fig. 2 is the schematic illustration of two effects thickening apparatus connection of the present invention.
Fig. 3 is the main structure schematic illustration of continous way feed liquor multiple-effect vacuum inspissator described in the embodiment of the present invention 2.
Fig. 4 is the main structure schematic illustration of continous way feed liquor multiple-effect vacuum inspissator described in the embodiment of the present invention 3.
Fig. 5 is the main structure schematic illustration of continous way feed liquor multiple-effect vacuum inspissator described in the embodiment of the present invention 4.
Fig. 6 is the main structure schematic illustration of continous way feed liquor multiple-effect vacuum inspissator described in the embodiment of the present invention 5.
Specific embodiment:
The invention will be further described by way of example and in conjunction with the accompanying drawings.
The present embodiment can be carried out under single production line using, be also applied for multichannel operating condition, under multichannel operating condition, this
Embodiment can use following four scheme: A, branch independence heat pump, branch independence heat pipe；B, branch independence heat pump, main line are single
One heat pipe；C, the single heat pump in main line, branch independence heat pipe；D, the single heat pump in main line, the single heat pipe of branch.
Embodiment 1: single production line
The present embodiment is in the realization of continous way feed liquor multiple-effect vacuum inspissator, specific concentration process are as follows:
(1) it is first turned on each valve, it is ensured that concentration route is smooth, then opens steam clean valve 8, steam is enable to clean
Whole equipment；
(2) after cleaning, steam off purge valve 8 opens vacuum pump 6, by the 1st effect 1 concentration tube 30 of thickening apparatus
Overpressure is reduced to -0.07Mpa, and respectively the overpressure of effect thickening apparatus successively further decreases 0.005Mpa thereafter；
(3) after each effect thickening apparatus vacustat, it is on equipment, makes the catalyst carrier temperature for starting heater 9
Stablize at 70 DEG C or so, open solution feed pump 7, solution is entered in starting 9 tube side of heater, heated, outlet temperature
65℃；
(4) solution after heating enters the concentration of the 1st effect thickening apparatus 1 through heat pipe evaporator 10 and the second monitor component 13
30 inlet of pipe, heat pump cycle and heat pipe circulation are to close at this time, are not heated；Solution after heating enters the 1st
Imitate in the concentration tube 30 of thickening apparatus 1 and get started boiling, the solvent vapour of generation of boiling since buoyancy lift starts to float, via
Steam (vapor) outlet enters in the heating tube 31 of the 2nd effect thickening apparatus 2, and inlet vapor temperature is also 65 DEG C, imitates thickening apparatus the 2nd
Concentration tube 30 is heated in 2 heating tube 31, while undergoing phase transition and being condensed into solvent liquid, solvent liquid is via the 2nd effect
The condensate liquid throttle valve 33 of thickening apparatus 2 flows to condensate liquid collector 19, and 1 effect being discharged by the 1st effect 1 concentration tube 30 of thickening apparatus is dense
Contracting liquid is entered under the driving of pull of vacuum in the concentration tube 30 of the 2nd effect thickening apparatus 2, molten in the 2nd effect thickening apparatus 2
The heat of liquid is provided by the solvent vapour that the 1st effect thickening apparatus 1 is discharged by phase transformation, while vacuum pump 6 has built opposite 1st effect
The solution and molten until the (n-1)th effect is concentrated so that concentration can continue to go in the lower pressure of thickening apparatus repeatedly
Agent steam has respectively entered the concentration tube 30 and heating tube 31 of the n-th effect thickening apparatus 5,30 institute of concentration tube of the n-th effect thickening apparatus 5
The heat needed is still provided by solvent vapour, be concentrated caused by final concentrate under the driving that concentrate draws material pump 27 into
Enter concentrate low-pressure liquid storing tank 26, and then enter next step process, the solvent vapour of generation is entered by steam (vapor) outlet
Evaporator with heat pump 14, exchanges heat；
(5) after having detected that solvent vapour enters evaporator with heat pump 14 and stability of flow, start heat pump cycle at once
Component, evaporator with heat pump 14 starts to condense solvent vapour at this time, the heat pump refrigerant Extraction solvent of evaporator with heat pump 14
The latent heat of phase change of steam is recycled to the heating tube 31 of the 1st effect thickening apparatus 1, heat pump refrigerant steam via heat pump compressor 15
Heat release is carried out, refrigerant liquid is become, refrigerant liquid is recycled to evaporator with heat pump 14 via throttling of heat pump valve 16, so anti-
It is multiple；When 31 outlet temperature of heating tube for detecting the 1st effect thickening apparatus 1 is stablized at 70 DEG C, starting component is closed；
(6) it when having detected solvent liquid from the outflow of evaporator with heat pump 14 and having stablized, is reached through condensate liquid throttle valve 33 cold
Lime set collector 19, and when condensate liquid collector 19 enters further into the flow of condensate liquid in condensate liquid general pipeline 25 and reaches maximum, it beats
Heat pipe circulating pump 18 is opened, heat pipe circulation brings into operation, and realizes the recycling of condensate liquid sensible heat, and act on the preheating of weak solution, institute
It states weak solution and refers to that pumping 7 from solution feed enters, the material solution after steam clean valve 8；
(7) after yield to be concentrated reaches goal-selling requirement, it is first shut off solution feed pump 7, stops charging；When detecting
After the concentration tube 30 of 1st effect thickening apparatus 1 is flowed out without solution, the operation of heat pump cycle and heat pipe circulation is closed, is opened simultaneously
Water cooling heat exchanger 20 is opened, after detecting that drain valve 23 is flowed out without condensate liquid, closes water cooling heat exchanger 20；When detecting
Concentrate draw material pump 27 also without concentrate outflow after, close concentrate draw material pump 27；
(8) after all devices are out of service, cleaning is executed, is repeated the above steps.
The main structure of continous way feed liquor multiple-effect vacuum inspissator described in the present embodiment includes the 1st effect thickening apparatus the 1, the 2nd
Imitate thickening apparatus the 2, the 3rd imitate thickening apparatus 3 ..., (n-1)th effect thickening apparatus 4, n-th imitate thickening apparatus 5, vacuum pump 6, solution
Feed pump 7, steam clean valve 8, starting heater 9, heat pipe condenser 10, the first monitor component 11, solution pump 12, second monitor
Component 13, evaporator with heat pump 14, heat pump compressor 15, throttling of heat pump valve the 16, the 2nd imitate condensate liquid throttle valve 17, heat pipe circulating pump
18, condensate liquid collector 19, water cooling heat exchanger 20, condensate solution pump 21, heat pipe evaporator 22, drain valve 23, condensate liquid low pressure
Fluid reservoir 24, condensate liquid general pipeline 25, concentrate low-pressure liquid storing tank 26, concentrate draw material pump 27 and concentrate collector 28, wherein heat
Pump evaporator 14, heating tube 30, throttling of heat pump valve 16 and the composition heat pump cycle component of heat pump compressor 15, heat pipe condenser 10,
Heat pipe evaporator 22, heat pipe circulating pump 18 form heat pipe recirculation assembly, and external cold source and water cooling heat exchanger 20 form Water-cooling circulating
Component, external heat source and the starting composition starting component of heater 9；Solution feed pump 7 is connect with starting 9 pipeline of heater, is connected
Pipeline between feed pump 7 and starting heater 9 is equipped with steam clean valve 8, is used for cleaning equipment；Heat pipe condenser 10 is distinguished
It is connected to heat pipe starter 9, solution pump 12 and heat pipe evaporator 22, heat is equipped between heat pipe condenser 10 and heat pipe evaporator 22
Pipe circulating pump 18, is equipped with the first monitor component 11 between heat pipe condenser 10 and solution pump 12, solution pump 12 and the 1st imitates concentration group
The top of part 1 is connected to, and solution pump 12 and the 1st imitates and is equipped with the second monitor component 13 between thickening apparatus 1, and evaporator with heat pump 14 is distinguished
Heating working medium outlet, the 2nd effect thickening apparatus 2 with the heating working medium entrance, side lower of the 1st effect 1 side surface upper part of thickening apparatus
The heating working medium of side lower exports and the connection of 19 pipeline of water cooling heat exchanger, evaporator with heat pump 14 and the 1st imitate 1 side of thickening apparatus
Pipeline between the heating working medium entrance of face top is equipped with heat pump compressor 15, and evaporator with heat pump 14 and the 1st imitates 1 side of thickening apparatus
Pipeline between the outlet of face lower part heating working medium is equipped with throttling of heat pump valve 16, and evaporator with heat pump 14 and the 2nd imitates 2 side of thickening apparatus
Pipeline between the outlet of face lower part heating working medium is equipped with the 2nd effect condensate liquid throttle valve 17；The 2nd effect effect of thickening apparatus the 2, the 3rd is dense
Contracting component 3 ..., (n-1)th effect thickening apparatus 4, n-th imitate thickening apparatus 5 bottom be connected to respectively with 19 pipeline of condensate liquid collector,
1st effect thickening apparatus the 1, the 2nd imitate thickening apparatus the 2, the 3rd imitate thickening apparatus 3 ..., (n-1)th effect thickening apparatus 4, n-th effect concentration
Component 5 is including concentration tube 30, heating tube 31, third monitor component 32, condensate liquid throttle valve 33 and concentrate regulating valve 34, carefully
30 both ends of concentration tube of long structure have end socket, and concentration tube 30 is provided with by compression solution, and heating tube 31 uses casing, around pipe
Or other forms are arranged outside concentration tube 30, the outlet of 30 overhead vapor of concentration tube and the 2nd effect of the 1st effect thickening apparatus 1 are concentrated
The 31 side surface upper part heating working medium entrance of heating tube of component 2 is connected to, the concentration tube 30 of bottom liquid outlet and the 2nd effect thickening apparatus 2
The connection of side surface upper part inlet, the concentration tube of the 30 bottom liquid outlet of concentration tube of the 1st effect thickening apparatus 1 and the 2nd effect thickening apparatus 2
It is successively arranged third monitor component 32 and concentrate regulating valve 34 between 30 side surface upper part inlets, the 2nd effect thickening apparatus 2 and the
Connection between 3 effect thickening apparatus is identical as the connection between the 1st effect thickening apparatus and the 2nd effect thickening apparatus 2, and so on,
Until be connected to the n-th effect thickening apparatus, the 2nd effect thickening apparatus the 2, the 3rd imitate thickening apparatus 3 ..., the (n-1)th effect thickening apparatus 4,
Condensate liquid section is equipped between the outlet of 31 side lower heating working medium of heating tube and condensate liquid collector 19 of n-th effect thickening apparatus 5
Flow valve 33；The top of n-th effect thickening apparatus 5 is equipped with vacuum pump 6, vacuumizes convenient for pressure maintaining and before opening；N-th effect thickening apparatus 5
The steam (vapor) outlet at top is connected to 20 pipeline of water cooling heat exchanger, and the liquid outlet of bottom passes through concentrate collector 28 and concentrate low pressure
Fluid reservoir 26 is connected to, and concentrate collector 28 is equipped with concentrate and draws material pump 27, and condensate liquid collector 19 is connected to condensate liquid general pipeline 25,
Condensate liquid general pipeline 25 is equipped with condensate solution pump 21, and condensate solution pump 21 is connected to heat pipe evaporator 22, heat pipe evaporator
22 are connected to 24 pipeline of condensate liquid low-pressure liquid storing tank, set on the pipeline between heat pipe evaporator 22 and condensate liquid low-pressure liquid storing tank 24
There is drain valve 23.
External heat source described in the present embodiment includes electric heating heat source, workshop waste heat or high-pressure steam heat.
The 1st effect thickening apparatus 1, the 2nd effect thickening apparatus 2 described in the present embodiment, the 3rd effect thickening apparatus 3 ..., the
The top that n-1 effect thickening apparatus 4, n-th imitates thickening apparatus 5 is equipped with steam (vapor) outlet, left side be successively arranged from top to bottom into
Liquid mouth, heating working medium entrance, right side are equipped with heating working medium outlet, and bottom is equipped with liquid outlet；N-th effect thickening apparatus 5
Top is additionally provided with pressure maintaining mouth, and pressure maintaining mouth is connected to vacuum pump 6.(being limited by figure, each entrance, outlet do not mark in figure)
The concentration tube inner upper end of every effect thickening apparatus described in the present embodiment is equipped with exhaust structure and (is limited by figure, do not existed
Marked in figure), so that steam (vapor) outlet is only gone out steam, exhaust structure is centrifugation exhaust pipe, orifice plate or foam removal net.
External cold source described in the present embodiment includes Natural Water, cool storage material or air-source.
First monitor component 11, the second monitor component 13 described in the present embodiment and third monitor component 32 include view liquid
Mirror, liquid valve, traffic monitoring adjuster and density tester, liquid valve, flow regulator, liquid-sighting glass are sequentially connected, density inspection
Survey instrument be data pick-up, be placed on after liquid valve, the first monitor component, the second monitor component and third monitor component with
External power control cabinet is connected, to facilitate monitoring concentration liquid status and adjusting device.
Embodiment 2: branch independence heat pump, branch independence heat pipe
The present embodiment is simply in parallel by uniline described in embodiment 1, and the weak solution after starting device heats enters
To each branch, the heating of each branch heat pipe condenser is first passed around, it is low that low temperature is then carried out under the driving of each branch solution pump
Press Multi-effect concentration, the conc forms of each branch, heat pump cycle component with uniline when it is identical, each shunt product complete it is dense
After contracting technique, collected by the way that each collector is unified, specific concentration process are as follows:
(1) it is first turned on each valve, it is ensured that concentration route is smooth, then opens steam clean valve 8, steam is enable to clean
Whole equipment；
(2) after cleaning, steam off purge valve 8 opens vacuum pump 6, by the 1st effect 1 concentration tube 30 of thickening apparatus
Overpressure is reduced to -0.07Mpa, and respectively the overpressure of effect thickening apparatus successively further decreases 0.005Mpa thereafter；
(3) after each effect thickening apparatus vacustat, it is on equipment, makes the catalyst carrier temperature for starting heater 9
Stablize at 70 DEG C or so, open solution feed pump 7, solution is entered in starting 9 tube side of heater, heated, outlet temperature
65℃；
(4) solution after heating passes through tri- tunnel 11 Fen Wei of the first monitor component, respectively through heat pipe evaporator 10, solution pump 12
Enter the 1st effect 1 concentration tube of thickening apparatus, 30 inlet with the second monitor component 13, each road heat pump cycle and heat pipe circulation are equal at this time
It is to close, is not heated；Solution after heating, which enters in the concentration tube 30 that the 1st imitates thickening apparatus 1, gets started boiling,
The solvent vapour generated boil since buoyancy lift starts to float, the heating tube of the 2nd effect thickening apparatus 2 is entered via steam (vapor) outlet
In 31, inlet vapor temperature is also 65 DEG C, is heated in the heating tube 31 of the 2nd effect thickening apparatus 2 to concentration tube 30, simultaneously
It undergoes phase transition and is condensed into solvent liquid, solvent liquid flows to condensate liquid collection via the condensate liquid throttle valve 33 of the 2nd effect thickening apparatus 2
Pipe 19 enters the 2nd effect by the 1 effect concentrate that the 1st effect 1 concentration tube 30 of thickening apparatus is discharged under the driving of pull of vacuum and is concentrated
In the concentration tube 30 of component 2, in the 2nd effect thickening apparatus 2, the heat of solution imitates the solvent vapour that thickening apparatus 1 is discharged by the 1st
There is provided by phase transformation, while vacuum pump 6 has built the opposite 1st effect lower pressure of thickening apparatus so that concentration can continue into
Row goes down, and is concentrated repeatedly until the solution and solvent vapour of the (n-1)th effect have respectively entered the concentration of the n-th effect thickening apparatus 5
Pipe 30 and heating tube 31, n-th, which imitates heat required for the concentration tube 30 of thickening apparatus 5, is still provided by solvent vapour, and institute is concentrated
The final concentrate generated enters concentrate low-pressure liquid storing tank under the driving that concentrate draws material pump 27 by concentrate collector 28
26, and then enter next step process, the solvent vapour of generation enters evaporator with heat pump 14 by steam (vapor) outlet, is changed
Heat；
(5) after having detected that solvent vapour enters evaporator with heat pump 14 and stability of flow, start heat pump cycle at once
Component, evaporator with heat pump 14 starts to condense solvent vapour at this time, and the heat pump refrigerant in evaporator with heat pump 14 extracts molten
The latent heat of phase change of agent steam, the heating tube 31 of the 1st effect thickening apparatus 1 is recycled to via heat pump compressor 15, and heat pump refrigerant steams
Gas carries out heat release, becomes refrigerant liquid, and refrigerant liquid is recycled to evaporator with heat pump 14 via throttling of heat pump valve 16, so anti-
It is multiple；When 31 outlet temperature of heating tube for detecting the 1st effect thickening apparatus 1 is stablized at 70 DEG C, starting component is closed；
(6) it when having detected solvent liquid from the outflow of evaporator with heat pump 14 and having stablized, is reached through condensate liquid throttle valve 33 cold
Lime set collector 19, and when condensate liquid collector 19 enters further into the flow of condensate liquid in condensate liquid general pipeline 25 and reaches maximum, it beats
Heat pipe circulating pump 18 is opened, heat pipe circulation brings into operation, and realizes the recycling of condensate liquid sensible heat, and act on the preheating of weak solution；
(7) after yield to be concentrated reaches goal-selling requirement, it is first shut off solution feed pump 7, stops charging；When detecting
After the concentration tube 30 of 1st effect thickening apparatus 1 is flowed out without solution, the operation of heat pump cycle and heat pipe circulation is closed, is opened simultaneously
Water cooling heat exchanger 20 is opened, after detecting that drain valve 23 is flowed out without condensate liquid, closes water cooling heat exchanger 20；When detecting
Concentrate draw material pump 27 also without concentrate outflow after, close concentrate draw material pump 27；
(8) after all devices are out of service, cleaning is executed, is repeated the above steps.
Embodiment 3: branch independence heat pump, the single heat pipe in main line
The present embodiment carries out the change of heat pipe recirculation assembly on the basis of 2 scheme of embodiment, as shown in figure 4, by opening
Weak solution after dynamic equipment and heat pipe condenser 10 heat enters each branch, carries out low temperature under the driving of each branch solution pump
Low pressure Multi-effect concentration, each road the 1st, 2 ... n-1 are imitated the solvent vapour of thickening apparatus, are completed heating for next effect thickening apparatus
After being condensed into solvent liquid, it is uniformly pooled to condensate liquid collector 19, and then is pooled to condensate liquid general pipeline 25, subsequently into main line list
The heat exchange with heat-pipe working medium is carried out in one heat pipe evaporator, and then completes heat pipe circulation, other are consistent with embodiment 2.
Embodiment 4: the single heat pump in main line, branch independence heat pipe
The present embodiment carries out the change of heat pump cycle component on the basis of embodiment 2, as shown in figure 5, setting by starting
Weak solution after standby heating enters each branch, first passes around the heating of each branch heat pipe condenser 10, then molten in each branch
Low-temp low-pressure Multi-effect concentration is carried out under the driving of liquid pump 12, the refrigerant gas come out from main line evaporator with heat pump 14 passes through heat pump
Each branch the 1st is assigned to after the compression of compressor 15 to imitate in the heating tube 31 of thickening apparatus 1, is completed condensation in each branch heating tube and is put
After heat, become refrigerant liquid, it is unified to enter in refrigernant collector, main line heat pump, which is returned to, by main line throttle valve throttling action steams
Device is sent out, the solvent vapour of thickening apparatus output is imitated on each road n-th, is uniformly pooled to solvent vapour collector 29, and then enter heat pump and steam
Device 14 is sent out, completes heat exchange, and then complete heat pump cycle, other parts are same as Example 2.
Embodiment 5: the single heat pump in main line, the single heat pipe of branch
The present embodiment combines embodiment 3 and embodiment 4, the solvent steaming on each road the 1st, 2 ... n-1 effect thickening apparatus
Gas is uniformly pooled to condensate liquid collector 19, and then collect after completing to be condensed into solvent liquid for the heating of next effect thickening apparatus
To condensate liquid general pipeline 25, subsequently into the heat exchange carried out in main line heat pipe evaporator 22 with heat-pipe working medium, so that it is molten through superheater tube
The pumping of liquid pump reaches main line heat pipe condenser 10, completes heat pipe circulation；The solvent vapour of thickening apparatus output is imitated on each road n-th,
It is uniformly pooled to solvent vapour collector 29, and then enters main line evaporator with heat pump 14, completes heat exchange, main line heat pump refrigerant is in warm
Heat exchange becomes refrigerant gas in pump evaporator 14, enters collector after the boosting of heat pump compressor 15, is evenly distributed to each
In the 1st effect thickening apparatus heating tube 31 on road, after each branch heating tube 31 completes condensation heat release, becomes refrigerant liquid, unite
One enters in refrigernant collector, returns to main line evaporator with heat pump 14 by main line throttle valve throttling action, completes heat pump cycle, tool
Body concentration process are as follows:
(1) it is first turned on each valve, it is ensured that concentration route is smooth, then opens steam clean valve 8, steam is enable to clean
Whole equipment；
(2) after cleaning, steam off purge valve 8 opens vacuum pump 6, by the 1st effect 1 concentration tube 29 of thickening apparatus
Overpressure is reduced to -0.07Mpa, and respectively the overpressure of effect thickening apparatus successively further decreases 0.005Mpa thereafter；
(3) after each effect thickening apparatus vacustat, it is on equipment, makes the catalyst carrier temperature for starting heater 9
To stablize at 70 DEG C or so, opens solution feed pump 7, solution is entered in starting 9 tube side of heater through solution pump, is heated,
65 DEG C of outlet temperature；
(4) solution passes through tri- tunnel 11 Fen Wei of the first monitor component, enters respectively through solution pump 12 and the second monitor component 13
1st effect 1 concentration tube of thickening apparatus, 30 inlet, each road heat pump cycle and heat pipe circulation are to close at this time, are not added
Heat；Solution after heating, which enters in the concentration tube 30 that the 1st imitates thickening apparatus 1, gets started boiling, the solvent vapour for generation of boiling
Since buoyancy lift starts to float, entered via steam (vapor) outlet in the heating tube 31 of the 2nd effect thickening apparatus 2, inlet vapor temperature
Also be 65 DEG C, the 2nd effect thickening apparatus 2 heating tube 31 in concentration tube 30 is heated, while undergo phase transition be condensed into it is molten
Agent liquid, solvent liquid flow to condensate liquid collector 19 via the condensate liquid throttle valve 33 of the 2nd effect thickening apparatus 2, are concentrated by the 1st effect
1 effect concentrate of 1 concentration tube 30 of component discharge enters the concentration tube 30 of the 2nd effect thickening apparatus 2 under the driving of pull of vacuum
In, in the 2nd effect thickening apparatus 2, the heat of solution is provided by the solvent vapour that the 1st effect thickening apparatus 1 is discharged by phase transformation, together
When vacuum pump 6 built the opposite 1st effect lower pressure of thickening apparatus so that concentration can continue to go on, repeatedly
The solution imitated until (n-1)th is concentrated and solvent vapour has respectively entered the concentration tube 30 and heating tube 31 of the n-th effect thickening apparatus 5,
Heat required for the concentration tube 30 of n-th effect thickening apparatus 5 is still provided by solvent vapour, and generated final concentrate is concentrated
Enter concentrate low-pressure liquid storing tank 26 under the driving that concentrate draws material pump 27, and then enters next step process, generation
Solvent vapour enters evaporator with heat pump 14 by steam (vapor) outlet, exchanges heat；
(5) after having detected that solvent vapour enters evaporator with heat pump 14 and stability of flow, start heat pump cycle at once
Component, evaporator with heat pump 14 starts to condense solvent vapour at this time, the heat pump refrigerant Extraction solvent in evaporator with heat pump
The latent heat of phase change of steam is recycled to the heating tube 31 of the 1st effect thickening apparatus 1, heat pump refrigerant steam via heat pump compressor 15
Heat release is carried out, refrigerant liquid is become, refrigerant liquid is recycled to evaporator with heat pump 14 via throttling of heat pump valve 16, so anti-
It is multiple；When 31 outlet temperature of heating tube for detecting the 1st effect thickening apparatus 1 is stablized at 70 DEG C, starting component is closed；
(6) it when having detected solvent liquid from the outflow of evaporator with heat pump 14 and having stablized, is reached through condensate liquid throttle valve 33 cold
Lime set collector 19, and when condensate liquid collector 19 enters further into the flow of condensate liquid in condensate liquid general pipeline 25 and reaches maximum, it beats
Heat pipe circulating pump 18 is opened, heat pipe circulation brings into operation, and realizes the recycling of condensate liquid sensible heat, and act on the preheating of weak solution；
(7) after yield to be concentrated reaches goal-selling requirement, it is first shut off solution feed pump 7, stops charging；When detecting
After the concentration tube 30 of 1st effect thickening apparatus 1 is flowed out without solution, the operation of heat pump cycle and heat pipe circulation is closed, is opened simultaneously
Water cooling heat exchanger 20 is opened, after detecting that drain valve 23 is flowed out without condensate liquid, closes water cooling heat exchanger 20；When detecting
Concentrate draw material pump 27 also without concentrate outflow after, close concentrate draw material pump 27；
(8) after all devices are out of service, cleaning is executed, is repeated the above steps.
Claims (7)
1. a kind of continous way feed liquor multiple-effect vacuum method for concentration based on heat pump, it is characterised in that in continous way feed liquor multiple-effect vacuum
Inspissator realization, specific concentration process are as follows:
(1) it is first turned on each valve, it is ensured that concentration route is smooth, then opens steam clean valve, steam is enable to clean entirely
Equipment；
(2) after cleaning, steam off purge valve opens vacuum pump, and the overpressure of the 1st effect thickening apparatus concentration tube is dropped
As low as -0.07Mpa, respectively the overpressure of effect thickening apparatus successively further decreases 0.005Mpa thereafter；
(3) after each effect thickening apparatus vacustat, it is on component, stablizes the catalyst carrier temperature for starting heater
70 DEG C, solution feed pump is opened, solution is entered in starting heater tube side, heated, 65 DEG C of outlet temperature；
(4) solution after heating enters the concentration tube inlet of the 1st effect thickening apparatus through heat pipe evaporator and the second monitor component,
Heat pump cycle and heat pipe circulation are to close at this time, are not heated；Solution after heating enters the 1st effect thickening apparatus
Boiling is got started in concentration tube, the solvent vapour of generation of boiling is entered since buoyancy lift starts to float via steam (vapor) outlet
In the heating tube of 2nd effect thickening apparatus, inlet vapor temperature is also 65 DEG C, to concentration in the heating tube of the 2nd effect thickening apparatus
Pipe is heated, while being undergone phase transition and being condensed into solvent liquid, the condensate liquid throttle valve that solvent liquid imitates thickening apparatus via the 2nd
Condensate liquid collector is flowed to, enters the under the driving of pull of vacuum by 1 effect concentrate of the 1st effect thickening apparatus concentration tube discharge
In the concentration tube of 2 effect thickening apparatus, in the 2nd effect thickening apparatus, the heat of solution is steamed by the solvent of the 1st effect thickening apparatus discharge
Gas is provided by phase transformation, while vacuum pump has built the opposite 1st effect lower pressure of thickening apparatus so that concentration can continue into
Row goes down, and is concentrated repeatedly until the solution and solvent vapour of the (n-1)th effect have respectively entered the concentration tube of the n-th effect thickening apparatus
And heating tube, n-th, which imitates heat required for the concentration tube of thickening apparatus, is still provided by solvent vapour, is concentrated generated final
Concentrate enters concentrate low-pressure liquid storing tank under the driving that concentrate draws material pump, and then enters next step process, generates
Solvent vapour enter evaporator with heat pump by steam (vapor) outlet, exchange heat；
(5) after having detected that solvent vapour enters evaporator with heat pump and stability of flow, start heat pump cycle component at once, this
When evaporator with heat pump start to condense solvent vapour, the phase transformation of the heat pump refrigerant Extraction solvent steam of evaporator with heat pump is latent
Heat, the heating tube of the 1st effect thickening apparatus is recycled to via heat pump compressor, and heat pump refrigerant steam carries out heat release, becomes to freeze
Agent liquid, refrigerant liquid are recycled to evaporator with heat pump via throttling of heat pump valve, repeatedly；When detect the 1st effect concentration group
The heating tube outlet temperature of part is stablized at 70 DEG C, and starting component is closed；
(6) when having detected solvent liquid from evaporator with heat pump outflow and having stablized, condensate liquid collector is reached through condensate liquid throttle valve,
And the condensation flow quantity that enters further into condensate liquid general pipeline of condensate liquid collector opens heat pipe circulating pump, heat when reaching maximum
Pipe circulation brings into operation, and realizes the recycling of condensate liquid sensible heat, and acts on the preheating of weak solution, and the weak solution refers to from solution
Feed pump enters, the material solution after steam clean valve；
(7) after yield to be concentrated reaches goal-selling requirement, it is first shut off solution feed pump, stops charging；When detect the 1st effect
After the concentration tube of thickening apparatus is flowed out without solution, the operation of heat pump cycle and heat pipe circulation is closed, while opening water cooling and changing
Hot device closes water cooling heat exchanger after detecting that drain valve is flowed out without condensate liquid；Pump is expected when detecting that concentrate draws
After being flowed out without concentrate, closes concentrate and draw material pump；
(8) after all components are out of service, cleaning is executed, is repeated the above steps.
2. the continous way feed liquor multiple-effect vacuum method for concentration based on heat pump according to claim 1, it is characterised in that the base
Include the 1st effect thickening apparatus, the 2nd effect thickening apparatus, the 3rd in the main structure of the continous way feed liquor multiple-effect vacuum inspissator of heat pump
Effect thickening apparatus ..., (n-1)th effect thickening apparatus, n-th effect thickening apparatus, vacuum pump, solution feed pump, steam clean valve, open
Dynamic heater, heat pipe condenser, the first monitor component, solution pump, the second monitor component, evaporator with heat pump, heat pump compressor, heat
Pump throttle valve, the 2nd effect condensate liquid throttle valve, heat pipe circulating pump, condensate liquid collector, water cooling heat exchanger, condensate solution pump, heat pipe
Evaporator, drain valve, condensate liquid low-pressure liquid storing tank, condensate liquid general pipeline, concentrate low-pressure liquid storing tank, concentrate draw material pump and concentration
Liquid collector, wherein evaporator with heat pump, heating tube, throttling of heat pump valve and heat pump compressor form heat pump cycle component, heat pipe condensation
Device, heat pipe evaporator, heat pipe circulating pump form heat pipe recirculation assembly, and external cold source and water cooling heat exchanger form Water-cooling circulating group
Part, external heat source and starting heater composition starting component；Solution feed pump is connect with starting heater conduit, connects feed pump
Pipeline between starting heater is equipped with steam clean valve, is used for cleaning equipment；Heat pipe condenser starts with heat pipe respectively
Device, solution pump are connected to heat pipe evaporator, and heat pipe circulating pump, heat pipe condenser are equipped between heat pipe condenser and heat pipe evaporator
The first monitor component is equipped between solution pump, solution pump is connected to the top of the 1st effect thickening apparatus, and solution pump and the 1st effect are dense
The second monitor component is equipped between contracting component, heating working medium of the evaporator with heat pump respectively with the 1st effect thickening apparatus side surface upper part enters
Mouth, the heating working medium outlet of side lower, the heating working medium outlet of the 2nd effect thickening apparatus side lower and water cooling heat exchanger pipe
Road connection, the pipeline between evaporator with heat pump and the 1st effect thickening apparatus side surface upper part heating working medium entrance are compressed equipped with heat pump
Machine, the pipeline between evaporator with heat pump and the 1st effect thickening apparatus side lower heating working medium outlet are equipped with throttling of heat pump valve, heat
The pipeline pumped between evaporator and the 2nd effect thickening apparatus side lower heating working medium outlet is equipped with the 2nd effect condensate liquid throttle valve；
2nd effect thickening apparatus, the 3rd effect thickening apparatus ..., (n-1)th effect thickening apparatus, n-th effect thickening apparatus bottom respectively with it is cold
Lime set header tube connection, the 1st effect thickening apparatus, the 2nd effect thickening apparatus, the 3rd effect thickening apparatus ..., (n-1)th effect concentration group
Part, the n-th effect thickening apparatus include concentration tube, heating tube, third monitor component, condensate liquid throttle valve and concentrate regulating valve,
The concentration tube both ends of slim-lined construction have an end socket, and concentration tube is provided with by compression solution, heating tube using casing, around pipe or its
He is arranged outside concentration tube form, the heating of the concentration tube overhead vapor outlet of the 1st effect thickening apparatus and the 2nd effect thickening apparatus
The concentration tube side surface upper part inlet of the connection of pipe side surface upper part heating working medium entrance, bottom liquid outlet and the 2nd effect thickening apparatus connects
It is logical, the concentration bottom of the tube liquid outlet of the 1st effect thickening apparatus and the 2nd imitate between the concentration tube side surface upper part inlet of thickening apparatus according to
It is secondary to be equipped with third monitor component and concentrate regulating valve, the connection and the 1st between the 2nd effect thickening apparatus and the 3rd effect thickening apparatus
The connection imitated between thickening apparatus and the 2nd effect thickening apparatus is identical, and so on, until it is connected to the n-th effect thickening apparatus, the 2nd
Effect thickening apparatus, the 3rd effect thickening apparatus ..., (n-1)th effect thickening apparatus, n-th effect thickening apparatus heating tube side lower add
Condensate liquid throttle valve is equipped between hot working fluid outlet and condensate liquid collector；The top of n-th effect thickening apparatus is equipped with vacuum pump, just
It is vacuumized in pressure maintaining and before opening；Steam (vapor) outlet at the top of n-th effect thickening apparatus is connected to water cooling heat exchanger pipeline, and bottom goes out
Liquid mouth is connected to by concentrate collector with concentrate low-pressure liquid storing tank, and concentrate collector is equipped with concentrate and draws material pump, condensate liquid
Collector is connected to condensate liquid general pipeline, and condensate liquid general pipeline is pumped equipped with condensate solution, and condensate solution pump connects with heat pipe evaporator
Logical, heat pipe evaporator is connected to condensate liquid low-pressure liquid storing tank pipeline, the pipe between heat pipe evaporator and condensate liquid low-pressure liquid storing tank
Road is equipped with drain valve.
3. the continous way feed liquor multiple-effect vacuum method for concentration based on heat pump according to claim 2, it is characterised in that described outer
Portion's heat source includes electric heating heat source, workshop waste heat or high-pressure steam heat.
4. the continous way feed liquor multiple-effect vacuum method for concentration based on heat pump according to claim 2, it is characterised in that the described 1st
Imitate thickening apparatus, the 2nd effect thickening apparatus, the 3rd effect thickening apparatus ..., (n-1)th effect thickening apparatus, n-th effect thickening apparatus top
Portion is equipped with steam (vapor) outlet, and left side is successively arranged inlet, heating working medium entrance from top to bottom, and right side is equipped with heating
Sender property outlet, bottom are equipped with liquid outlet；It is additionally provided with pressure maintaining mouth at the top of n-th effect thickening apparatus, pressure maintaining mouth is connected to vacuum pump.
5. the continous way feed liquor multiple-effect vacuum method for concentration based on heat pump according to claim 2, it is characterised in that described every
The concentration tube inner upper end for imitating thickening apparatus is equipped with exhaust structure, and steam (vapor) outlet is made only to go out steam, and exhaust structure is centrifugation exhaust
Pipe, orifice plate or foam removal net.
6. the continous way feed liquor multiple-effect vacuum inspissator based on heat pump according to claim 2, it is characterised in that the outside
Cold source includes Natural Water, cool storage material or air-source.
7. the continous way feed liquor multiple-effect vacuum inspissator based on heat pump according to claim 2, it is characterised in that described first
Monitor component, the second monitor component and third monitor component include liquid-sighting glass, liquid valve, traffic monitoring adjuster and density inspection
Survey instrument, liquid valve, flow regulator, liquid-sighting glass be sequentially connected, and density tester is data pick-up, be placed on liquid valve it
Afterwards, the first monitor component, the second monitor component and third monitor component are connected with external power control cabinet, to facilitate monitoring to be concentrated
Liquid status and adjusting device.
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| CN201810921679.6A CN109107206A (en) | 2018-08-14 | 2018-08-14 | A kind of continous way feed liquor multiple-effect vacuum method for concentration based on heat pump |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810921679.6A CN109107206A (en) | 2018-08-14 | 2018-08-14 | A kind of continous way feed liquor multiple-effect vacuum method for concentration based on heat pump |
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| CN110559673A (en) * | 2019-10-08 | 2019-12-13 | 上海万仕诚药业有限公司 | vacuum concentration tank, vacuum concentration system, liquid inlet method and cleaning method |
| CN112891971A (en) * | 2021-03-10 | 2021-06-04 | 佛山德众制药机械有限公司 | Vacuum push-pull double-effect concentration system |
| CN113623899A (en) * | 2021-08-17 | 2021-11-09 | 浙江镇田机械有限公司 | Energy-saving process for complete heat pump evaporation equipment |
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