CN207845196U - A kind of desulfurization wastewater low-temperature evaporation concentration systems - Google Patents
A kind of desulfurization wastewater low-temperature evaporation concentration systems Download PDFInfo
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- CN207845196U CN207845196U CN201721168987.3U CN201721168987U CN207845196U CN 207845196 U CN207845196 U CN 207845196U CN 201721168987 U CN201721168987 U CN 201721168987U CN 207845196 U CN207845196 U CN 207845196U
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- 239000002351 wastewater Substances 0.000 title claims abstract description 155
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 58
- 230000023556 desulfurization Effects 0.000 title claims abstract description 58
- 238000001704 evaporation Methods 0.000 title claims abstract description 31
- 230000008020 evaporation Effects 0.000 title claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 43
- 238000007701 flash-distillation Methods 0.000 claims abstract description 39
- 239000007921 spray Substances 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 30
- 230000008569 process Effects 0.000 claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 239000012716 precipitator Substances 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 230000005514 two-phase flow Effects 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 7
- 239000003546 flue gas Substances 0.000 abstract description 7
- 239000012141 concentrate Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000005864 Sulphur Substances 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000010025 steaming Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 241001365789 Oenanthe crocata Species 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011552 falling film Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
A kind of desulfurization wastewater low-temperature evaporation concentration systems, including waste water heating system, waste water flash distillation process system, flash-off steam aspirate compressibility；After desulfurization wastewater waste water flowing heating system is heated, the spray flash distillation mechanism into waste water flash distillation process system is flashed；The flash-off steam piping connection flash-off steam of waste water flash distillation process system aspirates compressibility；For the steam flashed off after flash-off steam suction compressibility compression heating, the heat source as waste water heating system is connected to waste water heating system；The desulfurization wastewater circulation line of waste water flash distillation process system connects flue penetrating vapo(u)rization system by concentrating water delivery pipe；Heating and low-flash decrement are carried out to desulfurization wastewater, it concentrates waste water and sprays into flue evaporation, steam in waste water is discharged into air with flue gas, salts substances are captured by deduster in waste water, realize the zero-emission of desulfurization wastewater, the safety of electric precipitator operation is improved, while having recycled the salt-free water flashed off.
Description
Technical field
The utility model belongs to water treatment field, is related to a kind of low-flash evaporation and concentration system of desulfurization (or saliferous) waste water
System.
Background technology
In order to reach requirement of the country to SO2 minimum discharges, domestic power plant or other coal combustion equipments mostly use greatly lime stone-
Gypsum wet flue gas desulfurizing technology, the technology produce serious discharge of wastewater while high-efficiency desulfurization.In April, 2015, state
The publication of business institute《Water pollution action plan》The prevention dynamics to all kinds of water pollutions is enhanced, desulfurization wastewater (is contained due to complicated component
Suspended matter, fluoride, heavy metal and salinity etc.), emission hazard receive highest attention in the industry greatly.
Currently, technique (traditional three header methods) removal desulfurization wastewater that desulfurization wastewater processing mostly uses greatly chemical precipitation is dirty
Object is contaminated, but this method operating cost is high, limited to the removal of heavy metal ions rate such as the soluble organic fractions such as villaumite and selenium, water outlet is outstanding
Floating particles object and COD etc. also tend to be unable to stably reaching standard discharge, be easy to cause secondary pollution.
In order to realize that the zero-emission of desulfurization wastewater, flue evaporation technique are suggested and are gradually paid attention to.The technology will take off
The atomization of sulphur waste water is given up saliferous using boiler tail thermal flue gas to spray into the flue between air preheater and electric precipitator after drop
Water is evaporated, and the fine solid particle object of generation is captured by electric precipitator, and key is to efficiently use boiler exhaust gas waste heat by waste water
Drop evaporating completely in a short time.
For the higher unit of exhaust gas temperature, boiler exhaust gas waste heat is generally all enough in the short time under rated load
Inside it is evaporated desulfurization wastewater drop.
However, recent year fired power generating unit or other coal combustion equipments, are generally chronically at underrun state, load
Reduction often lead to the decline of exhaust gas temperature, the shortage of heat contained by the flue gas to be evaporated desulfurization wastewater in a short time
When, drop will be attached to stack inner surface or enter electric precipitator, and corrosion and equipment fault, desulfurization wastewater flue is easily caused to be steamed
Hair technology will be unable to come into operation.
At present to realize Wastewater Pretreatment decrement, using the MED multiple-effect evaporations of high parameter steam, need additionally to consume unit
High parameter steam.Also falling film evaporator is easy fouling and blocking.The country also has using membrane technology, first by desulfurization wastewater mistake
Filter decrement is then sprayed into flue evaporation.Since wastewater flow rate reduces, required evaporation heat is reduced, and evaporation effect greatly improves.But
It is that the operating cost that membrane technology filters decrement method is relatively high, operational safety stability is insufficient.
Utility model content
To solve the above problems, the technical solution adopted in the utility model is as described below.
A kind of desulfurization wastewater low-temperature evaporation concentration systems, including waste water heating system, waste water flash distillation process system, flash distillation steaming
Vapour aspirates compressibility；It is characterized in that：The desulfurization wastewater efferent duct of desulfurizer connects waste water flash distillation process system；Waste water dodges
It steams processing system and connects waste water heating system；After desulfurization wastewater waste water flowing heating system is heated, into waste water flash distillation process
The spray flash distillation mechanism of system is flashed；The flash-off steam piping connection flash-off steam suction compression of waste water flash distillation process system
System；The steam flashed off is after flash-off steam suction compressibility compression heating, the heat source as waste water heating system
It is connected to waste water heating system；Flash-off steam condenses into water after waste water heating system and realizes condensate-water polishing；Waste water flashes
The desulfurization wastewater circulation line of processing system connects flue penetrating vapo(u)rization system by concentrating water delivery pipe, arrives certain density dense
Contracting waste water sprays into flue evaporation.
Further, waste water heating system includes heated type condenser, heated type condenser water system, heated type condensing
Device pumped vacuum systems, heated type Steam Side of Condenser and condensate draining system；At heated type condenser water system access waste water flash distillation
The desulfurization wastewater circulation line of reason system, heated type Steam Side of Condenser are connected with waste water heat source system steam drain；Heating
Formula condenser shell-side is the steam from waste water heat source system, and pipe side is desulfurization wastewater, and heating steam is condensed into water and returns
It receives.
Further, waste water flash distillation process system includes flash tank, flashed steam cycle system；Flash tank top is that spray flashes
Mechanism, bottom are equipped with sink, are connected by desulfurization wastewater circulation line；Flash tank side is steam (vapor) outlet, and outlet is equipped with drop
Separator；Waste water sprays into flash tank with misty or drop state, is evaporated, cools down during stagnant sky, is not flashed part and falls
Enter bottom sink；The desulfurization wastewater concentrated in the sink of bottom is entered waste water heating system and is heated up after filtration treatment, using useless
Water-circulating pump is re-delivered to flash tank top spray flash distillation mechanism.
Further, flash-off steam aspirates compressibility, including wind turbine or compressor, steam absorbing tube road and exhaust line；Wind
Machine or compressor connect flash tank steam (vapor) outlet, wind turbine or compressor through exhaust line connection waste water heating system through steam absorbing tube road
System.
Further, the wind turbine or compressor of flash tank steam (vapor) outlet connection flash-off steam suction compressibility, flash tank
Vacuum established by wind turbine or compressor.
Further, the inside of flash tank is designed to a pressure chamber or multiple and different pressure chambers；Water intake mode is designed as
Single layer sprays or Multi-layer sprinkling.
Further, the mode of spray selects to use high pressure nozzle, low-pressure nozzle, gas-liquid two-phase flow nozzle or water drenching dish type
Formula.
Further, arrangement of nozzles is in the top of tank body, waist and/or middle and lower part；The direction of ejection using upwards, to
Under, centripetal spray and/or radial spray mode.
Further, flash-off steam aspirates compressibility, including a Fans or compressor or more serial or parallel connection wind
Machine or compressor；Wind turbine or compressor suction port connect flash distillation plant, and wind turbine or compressor are by electric drive or other machinery side
Formula drives；The flash-off steam of wind turbine or compressor suction from flash tank is sent to heated type condenser shell after compression heating step by step
Side, the heat source as heated waste water.
Further, flue sprays into vapo(u)rization system atomizer and is installed on the top flue between air preheater and electric precipitator Nei
Portion is disposed adjacent to a side flue of air preheater.
Compared with existing hot swapping, the utility model non-scaling does not block, will not cause secondary pollution.
Compared with existing membrane technology filters decrement method, the utility model does not block, with the work(for preheating concentration waste water
Can, underload adapts to new stronger.And this method operating cost is also very low.
Description of the drawings
Fig. 1 is the structural schematic diagram of desulfurization wastewater low-temperature evaporation concentration systems；
Wherein 1 flash tank, 2 wind turbines or compressor, 3 filter devices, 4 waste water circulating pumps, 5 heated type condensers；
Specific implementation mode
Below in conjunction with the accompanying drawings 1, the technical solution of the utility model is described in detail.
Desulfurization wastewater low-temperature evaporation concentration systems are taken out including waste water heating system, waste water flash distillation process system, steam
Suction pressure compression system.Its basic principle is：50~70 DEG C first are heated in the waste water heating system by desulfurization wastewater outside flash tank,
(low-temperature evaporation) decrement is flashed again, is reached certain density concentration waste water and is sprayed into flue evaporation, vapor is discharged with flue gas,
The fine solid particle object of generation is captured by electric precipitator.
By heating desulfurization wastewater, waste water flash distillation is not only improved, meanwhile, heat is transmitted into waste water, its temperature is made to be promoted；
By flash distillation, the part water in desulfurization wastewater becomes steam, and wastewater flow rate reduces.Discharge reduction and heating, this two measures
Effect can all make desulfurization wastewater spray into flue evaporation institute calorific requirement and reduce, and evaporation effect greatly improves after spraying into flue, especially
It is in the case of performing low-load running of machine set.
In addition, desulfurization wastewater low-temperature evaporation concentration systems additionally provide the recycling to flash-off steam and water simultaneously.It is de-
Sulphur waste water efferent duct connects flash tank lower part sink, and the waste water come from desulfurizer sequentially enters sink, waste water heating system；It is de-
Sulphur waste water enters waste water flash distillation process system top spray flash distillation mechanism after being heated outside flash tank is flashed (low temperature steaming
Hair)；Flash-off steam enters steam suction compressibility；The outlet of steam suction compressibility is connected to waste water heating system, passes through
Waste water heating and steam cooling condensation are realized in heat exchange；Can also have been recycled in waste water heating system flash off it is salt-free
Water.
Waste water heating system includes that desulfurization wastewater access system, heated type condenser water system, adds heated type condenser
Hot type evacuation system for steam condenser, heated type Steam Side of Condenser and condensate draining system, pipeline valve etc..Steam is heated from useless
Water heat source system.Heated type condenser is connected with the increasing steam turbine steam drain of waste water heat source system.Heated type condensing
Device shell-side is the steam from waste water heat source system, and pipe side is desulfurization wastewater.Waste water heating system of the waste water outside flash tank
In system 50~70 DEG C are heated to by low-temperature heat source.The controlled temperature of tank external heat, slows down Ca, Mg ion releasing, and tank body is not easy
Fouling；It heats steam simultaneously and is condensed into water in heated type condenser and recycle.
Waste water flash distillation process system includes flash tank, flashed steam cycle system；Flash tank top is spray flash distillation mechanism, bottom
Equipped with sink.Side is equipped with steam (vapor) outlet, and steam outlet is equipped with entrainment trap.Waste water is sprayed into misty or drop state
Flash tank, and be evaporated, cool down within the hang time, it is not flashed part and falls into bottom sink.Then it through filter device, goes forward side by side
Enter the heating of waste water heating system, it is spray flash distillation mechanism to get to flash tank top again using waste water circulating pump.Thus it recycles
Back and forth (different and different according to required concentration ratio).The pressure of flash tank is located at 10~20kpa.Whole system is designed to low temperature
Flash distillation, not dosing are not consumed energy, and non-scaling does not block, and do not generate secondary pollution, and constantly cycle flashes desulfurization wastewater, meanwhile,
Low concentration wastewater, which is constantly supplemented in, to be come, and is concentrated to a degree of waste water and is transported to flue penetrating system.The steaming of flash tank
Vapor outlet is equipped with entrainment trap.
The inside of flash tank can be designed to a pressure chamber, can also be designed to 2~5 different pressures chambers.Water inlet side
Formula can be designed as single layer spray, 2~5 layers of Multi-layer sprinkling be may be set to be, to increase the hang time of water droplet.
The mode of spray can also select, and carry out different designs according to the property of waste water, high pressure nozzle, low pressure may be used
Nozzle, gas-liquid two-phase flow nozzle, the structure types such as no nozzle (water spraying tray).The size of drop can also be different.When using nozzle,
The top of tank body, waist, middle and lower part can be arranged in.The direction of ejection can also up, down, centripetal spray, radial to spray
Deng.
The shape of flash tank can be cylindrical, trapezoidal, taper or combination thereof form.Flash tank length-width ratio can be
Thick fat type can also be thin and tall type.
Flash tank in waste water flash distillation process system, either single tank, can also be multiple tanks.The size of flash tank
Either it is identical, can also be different.
The steam (vapor) outlet connection steam of flash tank aspirates compressibility, including one or more serial or parallel connection wind turbine or pressure
Contracting machine, pipeline valve etc.；The steam (vapor) outlet of wind turbine or compressor suction port connection flash distillation plant, wind turbine or compressor outlet connection
Heated type condenser shell-side, wind turbine or compressor are driven by electric drive or other machinery mode.Wind turbine or compressor suction are come
From the flash-off steam of flash tank, heated type condenser shell-side, the steam source as heated waste water are sent to after compression heating step by step.
When certain density concentration waste water sprays into flue, the selection of nozzle mounting position point in air preheater and electric precipitator it
Between flue inner top, be disposed adjacent to a side flue of air preheater.
This system is equally applicable to that except desulfurization wastewater, needing to carry out wastewater zero discharge processing other, " saliferous is useless
Water ".
Embodiment 1：
As shown in Figure 1, being directed to thermal power plant.Desulfurization wastewater low-temperature evaporation concentration systems include waste water heating system, give up
Water flash distillation process system, flash-off steam aspirate compressibility.
Its kernel processing device waste water flash distillation process system includes flash tank, flashed steam cycle system；Flash tank top is spray
Leaching flash distillation mechanism, bottom are equipped with sink, and side is steam (vapor) outlet, is equipped with entrainment trap.Waste water is with misty or drop state
Flash tank is sprayed into, and is evaporated, cools down within the hang time, part is not flashed and falls into bottom sink.Then it is filtered, is gone forward side by side
Enter the heating of waste water heating system, it is spray flash distillation mechanism to get to flash tank top again using waste water circulating pump.Thus it recycles
Back and forth (different and different according to required concentration ratio).The vacuum of flash tank is established by wind turbine or compressor.The pressure of flash tank
It is located at 10~20kpa.Whole system is designed to low-flash, not dosing, and non-scaling does not block, and does not generate secondary pollution, is
System is simple, and constantly cycle flashes desulfurization wastewater, meanwhile, low concentration wastewater, which is constantly supplemented in, to be come, and is concentrated to a degree of
Waste water is transported to flue and sprays into system.The steam (vapor) outlet of flash tank is equipped with filter device.
In work, the desulfurization wastewater from thermal power plant desulfurizer, flow is about 30t/h, by pipeline valve and
Pump is delivered to flash tank bottom sink, and subsequently into waste water heating system, 0.2Mpa, temperature are forced into heated type condenser
It is heated to 66 DEG C or so；The spray flash distillation mechanism for entering back into flash tank inner upper forms spray water mist into tank.Flashing pressure
15kpa, about 54 DEG C of temperature；Desulfurization wastewater is repeatedly recycled, and circulating water flow is about 1030t/h.
Flash tank connects flash-off steam and aspirates compressibility, and the flash-off steam that flow is about 20t/h is inhaled into wind turbine or pressure
The steam pressure of contracting machine, wind turbine or compressor outlet is about 26kpa, and temperature is about 66 DEG C.
The steam that flow from wind turbine or compressor outlet is about 20t/h, pressure is about 26kpa, temperature is about 66 DEG C,
Into heated type condenser shell-side, it is cooled to condensed water for the desulfurization wastewater of heating tube side flowing, and by steam, and formed about
20t/h's is hydrophobic, recycles.
Concentration desulfurization wastewater after flash process can enter penetrating system, into the system of penetrating concentration desulfurization wastewater about
For 10t/h.
Desulfurization wastewater from thermal power plant desulfurizer, flow are about 30t/h, pass through this low-temperature evaporation concentration systems
Afterwards, about 20t/h industrial waters have been recycled, the brine waste of about 10t/h higher concentrations has been condensed into, have sprayed into flue evaporation.
It is both needed to make of resistant material with the position of waste water in above equipment.Desulfurization wastewater is through waste water flash concentration
Become increasing after system the high-concentration waste water of certain temperature with it is hydrophobic, wherein hydrophobic recoverable, high-concentration waste water (account for about
The 1/3 of original input waste water total amount) total amount reduction, it nebulizes (average grain diameter≤70 μm) using atomizer atomization, sprays into cigarette
In heat smoke in road.
In flue, waste water after atomization is mixed formula heat exchange with flue gas, using boiler tail thermal flue gas by waste water
It is evaporated, the fine solid particle object of generation is captured by electric precipitator, realizes the zero-emission of desulfurization wastewater.In this evaporation process, cigarette
Temperature degree reduces about 3-8 DEG C.Since smoke temperature is higher than acid dew point, so low-temperature corrosion, which will not occur, influences unit safety operation.
Finally it should be noted that：The foregoing is merely the explanations of the utility model, are not intended to limit the utility model, to the greatest extent
The utility model is described in detail in pipe, for those skilled in the art, can still be remembered to aforementioned
The technical solution of load is modified or equivalent replacement of some of the technical features.All spirit in the utility model
Within principle, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of desulfurization wastewater low-temperature evaporation concentration systems, including waste water heating system, waste water flash distillation process system, flash-off steam
Aspirate compressibility；It is characterized in that：The desulfurization wastewater efferent duct of desulfurizer connects waste water flash distillation process system；Waste water flashes
Processing system connects waste water heating system；The flash-off steam piping connection flash-off steam suction compression system of waste water flash distillation process system
System；The desulfurization wastewater circulation line of waste water flash distillation process system connects flue penetrating vapo(u)rization system by concentrating water delivery pipe；It is useless
Water heating system includes heated type condenser, heated type condenser water system, heated type evacuation system for steam condenser, heated type
Steam Side of Condenser and condensate draining system；The desulfurization wastewater of heated type condenser water system access waste water flash distillation process system recycles
Pipeline, heated type Steam Side of Condenser are connected with waste water heat source system steam drain；Heated type condenser shell-side is from useless
The steam of water heat source system, pipe side are desulfurization wastewater, and heating steam is condensed into water and recycles；Waste water flash distillation process system packet
Include flash tank, flashed steam cycle system；Flash tank top is spray flash distillation mechanism, and bottom is equipped with sink, is recycled by desulfurization wastewater
Piping connection；Flash tank side is steam (vapor) outlet, and outlet is equipped with entrainment trap；Flash-off steam aspirates compressibility, including
Wind turbine or compressor, steam absorbing tube road and exhaust line；Wind turbine or compressor connect flash tank steam (vapor) outlet, wind turbine through steam absorbing tube road
Or compressor connects waste water heating system through exhaust line.
2. desulfurization wastewater low-temperature evaporation concentration systems according to claim 1, which is characterized in that flash tank steam (vapor) outlet connects
The wind turbine or compressor of flash-off steam suction compressibility are connect, the vacuum of flash tank is established by wind turbine or compressor.
3. desulfurization wastewater low-temperature evaporation concentration systems according to claim 1, which is characterized in that the interior design of flash tank
At a pressure chamber or multiple and different pressure chambers；Water intake mode is designed as single layer spray or Multi-layer sprinkling.
4. desulfurization wastewater low-temperature evaporation concentration systems according to claim 3, which is characterized in that the mode of spray selects to adopt
With high pressure nozzle, low-pressure nozzle, gas-liquid two-phase flow nozzle or water drenching disk-form.
5. desulfurization wastewater low-temperature evaporation concentration systems according to claim 4, which is characterized in that arrangement of nozzles is in tank body
Top, waist and/or middle and lower part；The direction of ejection is using upward, downward, centripetal spray and/or radial spray mode.
6. desulfurization wastewater low-temperature evaporation concentration systems according to claim 1, which is characterized in that flash-off steam suction compression
System, including a Fans or compressor or more serial or parallel connection wind turbines or compressor；Wind turbine or compressor suction port connection
Flash distillation plant, wind turbine or compressor are driven by electric drive or mechanical system；The sudden strain of a muscle of wind turbine or compressor suction from flash tank
Steam is steamed, is sent to heated type condenser shell-side, the heat source as heated waste water after compression heating step by step.
7. desulfurization wastewater low-temperature evaporation concentration systems according to claim 1, which is characterized in that flue sprays into vapo(u)rization system
Atomizer is installed on the flue inner top between air preheater and electric precipitator, is disposed adjacent to a side flue of air preheater.
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| CN201721168987.3U CN207845196U (en) | 2017-08-30 | 2017-08-30 | A kind of desulfurization wastewater low-temperature evaporation concentration systems |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111634969A (en) * | 2020-05-30 | 2020-09-08 | 联合瑞升（北京）科技有限公司 | High vacuum maintenance system for salt-containing wastewater treatment and operation method |
| CN111807591A (en) * | 2020-06-02 | 2020-10-23 | 北京朗新明环保科技有限公司 | Mixed salt curing method and system for high-salinity wastewater of power plant |
-
2017
- 2017-08-30 CN CN201721168987.3U patent/CN207845196U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111634969A (en) * | 2020-05-30 | 2020-09-08 | 联合瑞升（北京）科技有限公司 | High vacuum maintenance system for salt-containing wastewater treatment and operation method |
| CN111807591A (en) * | 2020-06-02 | 2020-10-23 | 北京朗新明环保科技有限公司 | Mixed salt curing method and system for high-salinity wastewater of power plant |
| CN111807591B (en) * | 2020-06-02 | 2024-01-23 | 国能朗新明环保科技有限公司 | Method and system for curing mixed salt of high-salt wastewater of power plant |
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