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CN209123378U - Heat energy recycling device of drying machine - Google Patents

Heat energy recycling device of drying machine Download PDF

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Publication number
CN209123378U
CN209123378U CN201821439910.XU CN201821439910U CN209123378U CN 209123378 U CN209123378 U CN 209123378U CN 201821439910 U CN201821439910 U CN 201821439910U CN 209123378 U CN209123378 U CN 209123378U
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China
Prior art keywords
steam
flash
vapour
water
drying
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Active
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CN201821439910.XU
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Chinese (zh)
Inventor
刘小军
贺敏
陈勇君
竭发全
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Yibin Grace Group Co Ltd
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Yibin Grace Group Co Ltd
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Abstract

The utility model discloses a drying-machine heat recovery utilizes device belongs to the energy saving and consumption reduction technical field of viscose staple fiber production. The problem of heat energy that steam overcrossed condensate and steam gived off runs off among the drying-machine to among the prior art is solved, a drying-machine heat recovery utilizes device is proposed, and the overheated condensate of stoving gets into the flash tank by the tangent line, has produced centrifugal force, and liquid and the density of vapour are different has realized the layering, and the water is heavy to descend, and the vapour rises. The water is pumped away by a water pump, the flash steam is upward, the flash tank is connected with a steam ejector by a flash steam pipe, the power of the steam ejector sucks the flash steam in the flash tank into the steam ejector, and the flash steam and the new steam are mixed in a mixing chamber and then sprayed to the fiber feeding tank.

Description

A kind of dryer heat energy recycle device
Technical field
The utility model belongs to the energy conservation field of viscose staple fibre production, and in particular to a kind of dryer thermal energy Recycle device.
Background technique
In existing short fine production process, fiber is through spinning, boundling, stretching, cutting and thereafter processing item includes: Washing, bleaching, pickling, is oiled, dries and is packaged desulfurization.In the process, the drying as one of post-processing main equipment Machine, main function are then to reduce the moisture content of short rayon fiber, are to pass through fin heats device indirect heating air, heat with steam Air recycles the moisture content taken away on fiber in drying chamber, then is discharged by dehumidification system, so that reaching reduces the aqueous mesh of fiber 's.
Fin heats device has the discharge of superheated steam condensed water, temperature about 110~120 during indirect heating air DEG C, heat enthalpy value 504.09KJ/Kg contains higher thermal energy, these superheated steam condensed waters are collected into basin, a part with Stream mode distributes, and a part condenses in a manner of hot water, and cold water is then added and is cooled to 40~50 DEG C, is used as cutting machine Mao Shui is rushed, although a large amount of thermal energy that water by reuse, contains could not be recycled by production, causes certain energy loss.
Conche front end is to fine slot.Rushing hair water carries the allocated device of fiber even into groove body, and groove body bottom is laid with There are 12 steam pipes, sprays steam heating water and fiber by certain angle, spray steam pressure controls 0.12~0.2Mpa, temperature in slot At 70~75 DEG C, this mode has opening fiber, evenly laid out fiber, conveying fiber and the work for evaporating carbon disulfide for degree control With the process flows such as being conducive to subsequent desulfurization, bleaching, wash, oil.To the vapour source pressure 0.5Mpa that fine slot uses, temperature It is 160 degree, 12 ton/hours of dosage, steam consumption is more, and energy consumption is higher.
By above-mentioned production procedure it can be seen that baker steam crosses condensed water and vapor evolution heat energy loss is high, conche It needs to fine slot using a large amount of steam.
State Intellectual Property Office discloses on November 09th, 2016 application No. is CN201620549050.X, entitled water The utility model patent that conche saves water recovery device is washed, a kind of washing conche province water recovery device is disclosed, including Heat exchanger, cooler and separating barrel, heat exchanger include casing and several heat conducting pipes, and the sealed partition of casing is divided into a left side One end of chamber and right chamber, several heat conducting pipes is placed in left chamber, and the other end of several heat conducting pipes both passes through sealing partition It is placed in right chamber, fresh air is connected to the inlet end of dryer through air inlet pipe, left chamber, and the outlet side of dryer is through right chamber Room, exhaust pipe are connected to cooler, and the first outlet pipe of water outlet of cooler is connected to separating barrel, outside the outlet side of cooler Atmosphere is connect, the second outlet pipe that the water outlet of separating barrel is set in its bottom is connected to conche.
Above-mentioned utility model structure recycles the waste heat of drying tail gas, and after gas-liquid separation, goes in water removal Fiber, dust and particulate matter, final clean water enter conche and carry out recycling use.But it is above-mentioned only by water reuse In production, steam is crossed condensed water and the thermal energy of vapor evolution and still be lost in dryer, and energy waste is huge, production environment Difference.
Summary of the invention
In order to overcome above-mentioned problems of the prior art and defect, the utility model provides a kind of dryer thermal energy Recycle device is used for the thermal energy that the steam in dryer crosses condensed water and vapor evolution to heat fiber to fine slot, so that Reduce the dosage of 0.5 ton or so initial steam per hour to fine slot.Steam consumption has been saved, has saved production cost, more favorably In environmental protection.
In order to realize that above-mentioned purpose of utility model, the technical solution of the utility model are as follows:
A kind of dryer heat energy recycle device, including drying overheat condensing water conduit, drying overheat condensing water conduit One end connect dryer, the other end is vertically passed through flash tank.
Drying overheat condensing water conduit and flash tank connect at the high a quarter of flash tank tank.
The drying for being 110~120 DEG C equipped with temperature inside drying overheat condensing water conduit overheats condensed water, drying overheat Condensed water is during drying machine drying.
Flash-off steam pipe is connected at the top of the utility model flash tank, flash-off steam pipe is vertically passed through vapour vapour injector.
The vapour vapour injector of the utility model includes steam jet, receiving chamber, mixing chamber and diffusion room.
The utility model further includes low pressure steam pipe, and low pressure steam pipe connects steam jet, steam jet and flash-off steam Receiving chamber, mixing chamber and diffusion room are disposed with below pipe;Receiving chamber, mixing chamber and diffusion room are sequentially communicated, diffusion room Connect steam ejection passage.
The bottom of flash tank is connected with water recovery tube, and the not complete condensed water of drying overheat condensed water flashing can be taken out by water pump It takes, is back to production.
It is connected with sewage draining exit on water recovery tube, cleaning blowdown uses when for maintenance or daily maintenance.
The utility model has the beneficial effects that
One, the drying overheat condensed water that dryer generates is passed through to drying and overheats condensing water conduit by the utility model, dries Dry overheat condensing water conduit is vertically passed through to flash tank.Water and flash steam layering in flash tank body, water to down toward water recovery tube, and Water recovery tube connects water pump.Flash steam is upward, is entered in vapour vapour injector by flash steam pipeline, flash steam and initial steam one It rises and sprays, sequentially enter diffusion room after mixing in mixing chamber again and to fine slot.The utility model carries out the thermal energy of baker It recycles, reduces the dosage of 0.5 ton or so initial steam per hour, and the water in flash tank can also be back in production, Steam consumption is saved, reduces the loss of water, has saved production cost, be more advantageous to environmental protection.
Two, the drying overheat condensing water conduit of the utility model and flash tank connect at the high a quarter of flash tank, A quarter is the separation of water and flash steam, and flash steam can be upward, and water is downward.
Three, the flash-off steam pipe of the utility model is vertically passed through vapour vapour injector.Few gas pressure can be increased by being vertically passed through Bring resistance is lost, is conducive to improve vapour vapour injector to the suction effect of flash-off steam, reduces the formation of condensed water.
Four, the receiving chamber of the utility model, mixing chamber and diffusion room are sequentially communicated, and form vapour vapour injection with steam jet Device.Receiving chamber, mixing chamber and diffusion room are the control that steam pressure and flow velocity are realized by runner variable diameter, to take flash distillation away Flash steam in tank forms the low-pressure state in flash tank.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Wherein, 1, drying overheat condensing water conduit, 2, flash tank, 3, flash-off steam pipe, 4, vapour vapour injector, 5, low pressure steaming Steam pipe, 6, steam jet, 7, receiving chamber, 8, mixing chamber, 9, diffusion room, 10, steam ejection passage, 11, water recovery tube, 12, row Dirty mouth.
Specific embodiment
The utility model is described in further detail below with reference to embodiment, but the embodiments of the present invention is not It is limited to this.
Embodiment 1
The utility model proposes a kind of dryer heat energy recycle devices, including drying overheat condensing water conduit 1, dry One end of dry overheat condensing water conduit 1 connects dryer, and the drying overheat condensed water that dryer generates, which is flow to, dried thermal coagulation In waterpipe 1.The other end of drying overheat condensing water conduit 1 is vertically passed through flash tank 2;The top of flash tank 2 is connected with flash distillation Steam pipe 3, flash-off steam pipe 3 connect vapour vapour injector 4.
Vapour vapour injector 4 described in the utility model includes steam jet 6, receiving chamber 7, mixing chamber 8 and diffusion room 9.It is described Receiving chamber 7, mixing chamber 8 and diffusion room 9 are located in a cavity, and steam jet 6 is vertically provided at the top of cavity, steam jet 6 upper ends are located at containment portion part and are connected with low pressure steam pipe 5.
The lower section of steam jet 6 and flash-off steam pipe 3 is disposed with receiving chamber 7, mixing chamber 8 and diffusion room 9;Diffusion room 9 connection steam ejection passages 10, are connected to fine slot.
The utility model will flash and vapour vapour injector 4 combines.Flash distillation is exactly the saturated liquid of high pressure into relatively low After in the container of pressure, due to the unexpected reduction of pressure, so that these saturated liquids is become the saturation under the container pressure of a part and steam Vapour and saturated solution.The steam jet 6 of the utility model, receiving chamber 7, mixing chamber 8, diffusion room 9 form vapour vapour injector 4, vapour vapour Injector 4 aspirates the drying in flash tank 2 and overheats condensed water, and the spray vapour speed of vapour vapour injector 4 is faster, and suction force is stronger, dodges Negative pressure in steaming pot 2 is bigger.
Drying overheat condensed water tangentially enters in flash tank 2, according to fluid two phase flow and vortex separation theorem, in tank Pressure reduction after dilatation, in the case where temperature-resistant, the pressure for reducing material reaches object to reduce the boiling point of material The purpose for expecting evaporation, generates flash steam in flash tank 2.
Vapour vapour injector 4 connects low pressure steam pipe 5, when the initial steam in low pressure steam pipe 5 is sprayed through steam jet 6 due to Steam flow generates suction, and the steam in flash-off steam pipe 3 is introduced low pressure steam pipe 5, vapour vapour injector 4 is entered back into, after mixing It is sprayed onto through diffusion room 9 to fine slot, fiber is heated, original low-quality thermal energy is made to retrieve utilization.
Receiving chamber 7, mixing chamber 8 and diffusion room 9 are sequentially communicated.Receiving chamber 7, mixing chamber 8 and diffusion room 9 are become by runner Diameter realizes the control of steam pressure and flow velocity.
Drying overheat condensing water conduit 1 is connect at the high a quarter of 2 tank of flash tank with flash tank 2.This connection Position is because a part flash distillation is flash steam in flash process, and a part is condensed into water.A quarter is water and steam point From liquid level line of demarcation.The junction can be lauched the boundary line separated with steam according to the different conditions of production and be adjusted, and protect Card is vertically passed through.
Flash-off steam pipe 3 is vertically passed through vapour vapour injector 4.Few pressure loss bring resistance can be increased by being vertically passed through Power is conducive to improve vapour vapour injector 4 to the suction effect of flash-off steam, reduces the formation of condensed water.
The bottom of flash tank 2 is connected with water recovery tube 11, and water recovery tube 11 connects water pump, and water pump can extract flash tank 2 The water of interior formation is back to production.
Sewage draining exit 12 is connected on water recovery tube 11, sewage draining exit 12 can clean blowdown when for maintenance or daily maintenance It uses.
The working principle of the utility model are as follows: drying overheat condensed water, which enters flash tank 2(by tangent line, dried thermal coagulation Water pipe vertically connects flash tank 2), just produce centrifugal force, due to the density of liquid and steam it is different it is achieved that layering, Water weight rises to decline, steam.Water is taken away by suction pump, and flash steam is upward, has sudden strain of a muscle between flash tank 2 and vapour vapour injector 4 It steams steam pipe 3 to connect, 4 power of vapour vapour injector makes to suck the flash steam in flash tank 2 into vapour vapour injector 4, flash steam and new Steam is sprayed onto steam after the mixing of mixing chamber 8 again and allots pipeline 10, is then sprayed onto fine slot.
Embodiment 2
A kind of dryer heat energy recycle device, including drying overheat condensing water conduit 1, drying overheat condensing water conduit 1 one end connects dryer, and other end tangent line is passed through flash tank 2;The top of flash tank 2 is connected with flash-off steam pipe 3, and flash distillation is steamed Steam pipe 3 connects vapour vapour injector 4;The vapour vapour injector 4 includes steam jet 6, receiving chamber 7, mixing chamber 8 and diffusion room 9;Institute It is vertically arranged to state steam jet 6,6 upper end of steam jet is connected with low pressure steam pipe 5;Steam jet 6 and flash-off steam pipe 3 The lower section of one vertical relationship of formation, steam jet 6 and flash-off steam pipe 3 is disposed with receiving chamber 7, mixing chamber 8 and expands Pressure chamber 9;Diffusion room 9 connects steam ejection passage 10.
More than, it is only the preferred embodiment of the utility model, limitation in any form not is done to the utility model, it is all It is any simple modification made by the above technical examples according to the technical essence of the present invention, equivalent variations, each falls within this reality Within novel protection scope.

Claims (5)

1. a kind of dryer heat energy recycle device, it is characterised in that: overheat condensing water conduit (1) including drying, the baking One end of dry overheat condensing water conduit (1) connects dryer, and other end tangent line is passed through flash tank (2);The top of the flash tank (2) Portion is connected with flash-off steam pipe (3), and the flash-off steam pipe (3) connects vapour vapour injector (4);Vapour vapour injector (4) packet Include steam jet (6), receiving chamber (7), mixing chamber (8) and diffusion room (9);The steam jet (6) is vertically arranged, the steam Nozzle (6) upper end is connected with low pressure steam pipe (5);The lower section of the steam jet (6) and the flash-off steam pipe (3) is successively set It is equipped with receiving chamber (7), mixing chamber (8) and diffusion room (9);The diffusion room (9) connects steam ejection passage (10).
2. dryer heat energy recycle device as described in claim 1, it is characterised in that: the drying overheats condensate pipe Road (1) is connect at the high a quarter of flash tank (2) tank with flash tank (2).
3. dryer heat energy recycle device as claimed in claim 1 or 2, it is characterised in that: the flash-off steam pipe (3) Vertically it is passed through vapour vapour injector (4).
4. dryer heat energy recycle device as claimed in claim 1 or 2, it is characterised in that: the bottom of the flash tank (2) Portion is connected with water recovery tube (11), is connected with sewage draining exit (12) on the water recovery tube (11).
5. dryer heat energy recycle device as claimed in claim 1 or 2, it is characterised in that: receiving chamber (7), mixing chamber (8) it is sequentially communicated with diffusion room (9).
CN201821439910.XU 2018-09-04 2018-09-04 Heat energy recycling device of drying machine Active CN209123378U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821439910.XU CN209123378U (en) 2018-09-04 2018-09-04 Heat energy recycling device of drying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821439910.XU CN209123378U (en) 2018-09-04 2018-09-04 Heat energy recycling device of drying machine

Publications (1)

Publication Number Publication Date
CN209123378U true CN209123378U (en) 2019-07-19

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CN201821439910.XU Active CN209123378U (en) 2018-09-04 2018-09-04 Heat energy recycling device of drying machine

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110496491A (en) * 2019-09-20 2019-11-26 苏州市晟浩源节能科技有限公司 A kind of device and method of the separation containing nitrogen in nitrogen vapor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110496491A (en) * 2019-09-20 2019-11-26 苏州市晟浩源节能科技有限公司 A kind of device and method of the separation containing nitrogen in nitrogen vapor

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