CN106640650B - One kind producing water ring vacuum pump liquid withdrawal system for carbon fibre precursor - Google Patents

One kind producing water ring vacuum pump liquid withdrawal system for carbon fibre precursor Download PDF

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Publication number
CN106640650B
CN106640650B CN201611255610.1A CN201611255610A CN106640650B CN 106640650 B CN106640650 B CN 106640650B CN 201611255610 A CN201611255610 A CN 201611255610A CN 106640650 B CN106640650 B CN 106640650B
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China
Prior art keywords
vacuum pump
water
ring vacuum
gas
liquid
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CN201611255610.1A
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CN106640650A (en
Inventor
孟凡钧
孟子顺
张会
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Harbin Tianshun Chemical Technology Development Co Ltd
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Harbin Tianshun Chemical Technology Development Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C19/00Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
    • F04C19/001General arrangements, plants, flowsheets
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C19/00Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
    • F04C19/004Details concerning the operating liquid, e.g. nature, separation, cooling, cleaning, control of the supply

Abstract

The invention discloses one kind producing water ring vacuum pump liquid withdrawal system for carbon fibre precursor, belongs to waste water and gas recycle utilization technology field.The device includes that water ring vacuum pump, cooler, recirculated water storage device, condenser and gas-liquid coagulate retracting device again.The gas vent and drain pipe of water ring vacuum pump are connected to by gas-liquid mixed pipeline with recirculated water storage device.Cooler is connected to by circulating water pipework with the inlet tube of the circulating water outlet of recirculated water storage device and water ring vacuum pump.Condenser is connected to by gas circuit pipeline I with the air admission hole of water ring vacuum pump.The entrance that the exhaust outlet of recirculated water storage device coagulates retracting device with gas-liquid again is connect.The liquid outlet that gas-liquid coagulates retracting device again is connected to circulating water pipework.Recirculated water storage device and cooler are provided separately by the device, are only carried out cooling treatment to the water of cycle, are not cooled down to the greasy dirt etc. that water ring vacuum pump is taken out of, provide the utilization rate of resource.

Description

One kind producing water ring vacuum pump liquid withdrawal system for carbon fibre precursor
Technical field
The present invention relates to one kind producing water ring vacuum pump liquid withdrawal system for carbon fibre precursor, belongs to waste water and gas and follows Ring utilizes technical field.
Background technology
Carbon fiber production in can use a large amount of solvent, such as DMSO, for reduce production cost, generally require to solvent into Row recycling.And it is very common method by condensing recovery.Wherein, in condensing recovery, when water ring vacuum pump often by with The power plant arrived.
It is widely used with oil, chemical industry, machinery, mine, light industry, medicine and food etc. although water ring vacuum pump is one kind The vinegar vacuum pump in field.But water ring vacuum pump needs a large amount of water during the work time, and will certainly in the removal process of DMSO A part of solvent is taken in the recirculated water of water ring vacuum pump.If the part recirculated water of direct emission, that is, waste a large amount of water Resource, and can cause environmental pollution.But water temperature can increase 10~15 DEG C after being discharged due to water ring vacuum pump, meanwhile, water ring Vacuum pump also will produce some pollutants in use, can be damaged to equipment belts such as circulator.Simultaneously as DMSO It is dissolved in after water, there is stronger corrosivity to metals such as iron.Therefore, the water ring vacuum pump in the production of existing carbon fibre precursor With water be usually directly exclusion, larger harm is caused to environment.Lacking one kind at present can realize that carbon fibre precursor produces With the liquid withdrawal system of water ring vacuum pump.
Invention content
To solve the problems, such as recycling for water ring vacuum pump water, the present invention provides one kind to produce for carbon fibre precursor Water ring vacuum pump liquid withdrawal system, the scheme taken are as follows:
One kind producing water ring vacuum pump liquid withdrawal system, including water ring vacuum pump 1 for carbon fibre precursor, and feature exists In further including that cooler 2, recirculated water storage device 3, condenser 4 and gas-liquid coagulate retracting device 11 again;
The gas vent and drain pipe of the water ring vacuum pump 1 are connected by gas-liquid mixed pipeline 5 and recirculated water storage device 3 It is logical;
The circulating water outlet and water ring vacuum pump 1 that the cooler 2 passes through circulating water pipework 6 and recirculated water storage device 3 Inlet tube connection;
Condenser 4 is connected to by gas circuit pipeline I7 with the air admission hole of water ring vacuum pump 1;
The entrance that the exhaust outlet 32 of recirculated water storage device 3 coagulates retracting device 11 with gas-liquid again is connect;
The liquid outlet that the gas-liquid coagulates retracting device 11 again is connected to circulating water pipework 6;
And the circulating water outlet is located at the side middle and lower part of recirculated water storage device 3.
Preferably, recirculated water storage device 3 further includes water supplement port 33 and discharge outlet 31.
Preferably, gas-liquid mixed pipeline 5 is stored up by the cycle water inlet positioned at 3 top of recirculated water storage device with recirculated water Cryopreservation device 3 is connected to.
It is highly preferred that the projection of cycle water inlet and circulating water outlet on 3 bottom surface of recirculated water storage device is misaligned.
Preferably, the gas-liquid coagulates 11 top of retracting device equipped with gas vent again.
Preferably, the air admission hole of condenser 4 is connect with production equipment.
Wherein, production equipment can be deaeration tower, for spin the needs such as tank or rectifying column carry out in device solution carry out it is cold Solidifying equipment.
The water ring vacuum pump includes not only pump itself, further include maintain pump normal operation other are existing known auxiliary Help device.
Compared with the existing technology, the advantageous effect that the present invention obtains is:
Recirculated water storage device and cooler are provided separately by the retracting device that the present invention uses, only to the water of cycle Carry out cooling treatment, the greasy dirt etc. that water ring vacuum pump is taken out of is not cooled down, the utilization of resources it is with strong points, improve resource Utilization rate.
Recirculated water storage device is connect by the circulating water pipework positioned at its side middle and lower part with cooler, and can avoid will be upper The greasy dirt or solid impurity taken out of in one cycle liquid are brought into cycle next time, can effectively improve following for circulating liquid Ring number substantially increases the utilization rate of recirculated water, can save great lot of water resources, keeps production more environmentally-friendly.
Present invention employs gas-liquids to coagulate retracting device again, i.e., by gas-liquid, solidifying reduce plays cooling effect again, and obtains The cycling use of water for obtaining more meetings, improves the recycling rate of waterused to water.
The present invention has installed condenser additional before water ring vacuum pump, is recycled to the DMSO in gas, significantly The residual volume for reducing DMSO reduces the corrosivity of recirculated water.
Description of the drawings
Fig. 1 is the condensing unit structural schematic diagram containing retracting device in a kind of preferred embodiment of the present invention.
In figure:1, water ring vacuum pump;2, cooler;3, recirculated water storage device;4, condenser;5, gas-liquid mixed pipeline; 6, circulating water pipework;7, gas circuit pipeline I;8, retracting device;9, gas circuit pipeline II;10, process units;11, gas-liquid coagulates recycling again Device;111, gas outlet;112, then solidifying pipeline;21, cooling water inlet;22, cooling water outlet;31, discharge outlet;32, exhaust outlet; 33, water supplement port;41, cooling media outlet;42, cooling media outlet.
Specific implementation mode
The present invention is described in further details below in conjunction with the accompanying drawings, but the limit described further below being not intended as to the present invention It is fixed.
Fig. 1 is the condensing unit structural schematic diagram containing retracting device in a kind of preferred embodiment of the present invention.It can from Fig. 1 Know, the retracting device of Water-ring vacuum pump liquid, is by water ring vacuum pump 1, cooler 2, recirculated water storage device 3, gas-liquid mixed Pipeline 5, circulating water pipework 6, condenser 4 are coagulated retracting device 11 with gas-liquid and formed again.Wherein, the exhaust outlet of water ring vacuum pump 1 It is connected to the cycle water inlet at 3 top of recirculated water storage device by gas-liquid mixed pipeline 5 with drainage hole.Recirculated water storage device 3 tops are equipped with the water supplement port 33 for supplementing recirculated water, and bottom is equipped with the discharge outlet 31 for recirculated water to be discharged.It is stored up in recirculated water The top of cryopreservation device 3 is equipped with exhaust outlet 32, is used for the gas that the conveying of water ring vacuum pump 1 comes being discharged.The exhaust outlet 32 passes through pipe The entrance that road coagulates retracting device 11 with gas-liquid again is connect so that hotter supermarket's gas carries out condensing recovery here.Gas-liquid is coagulated again The top of retracting device 11 is equipped with gas outlet 111, and side is by coagulating liquid outlet again with what solidifying pipeline 112 again was connect.Condensation Liquid is flowed by coagulating pipeline 112 again in circulating water pipeline 6.
Recirculated water storage device 3 can be cuboid sink, can also be cylindrical tank.Recirculated water storage device 3 Circulating water intake and circulating water outlet distance in the horizontal direction be equal to the diameter of tank body or the length equal to cuboid sink Degree prevents greasy dirt from entering by circulating water outlet and recycles next time to carry out static layering in entrance storage device for sewage. Wherein, cooler 2 is equipped with cooling water inlet 21 and cooling water outlet 22.
The inlet end of condenser 4 is connect by gas circuit pipeline II 9 with production equipment, outlet side by gas circuit pipeline I 7 with The air inlet of water ring vacuum pump 1 connects.The condensate outlet of condenser 4 is connected to by pipeline with retracting device 8, to collect condensation The solvent or fraction of acquisition.Meanwhile condenser 4 is additionally provided with the cooling media outlet 41 to come in and go out for the cooling medium of condensation and cooling Medium inlet 42.
In use, the steam containing DMSO after gas circuit pipeline II 9 to 4 condensing recovery of condenser by entering In retracting device 8, the gas not condensed is entered by gas circuit pipeline I 7 in water ring vacuum pump 1.Pass through gas-liquid mixed pipe again Road 5 enters recirculated water storage device 3.Cooler 2 is directly entered by circulation line 6 in 3 liquid of recirculated water storage device In, and after gas is using the gas-liquid again condensation of solidifying retracting device 11, liquid enters circulation line 6, gas by coagulating pipeline 112 again Body is then excluded by gas outlet 111.Cooler 2 through supercooling, then passes through Water-ring vacuum after obtaining the higher recirculated water of temperature The inlet of pump 1 returns in water ring vacuum pump 1, and cycle is gone down successively.
Although the present invention is disclosed as above with preferred embodiment, it is not limited to the present invention, any to be familiar with this The people of technology can do various changes and modification, therefore the protection of the present invention without departing from the spirit and scope of the present invention Range should be subject to what claims were defined.

Claims (5)

1. one kind producing water ring vacuum pump liquid withdrawal system, including water ring vacuum pump (1) for carbon fibre precursor, feature exists In, further include cooler (2), recirculated water storage device (3), condenser (4) and gas-liquid again coagulate retracting device (11);
The gas vent and drain pipe of the water ring vacuum pump (1) are connected by gas-liquid mixed pipeline (5) and recirculated water storage device (3) It is logical;
The circulating water outlet and water ring vacuum pump that the cooler (2) passes through circulating water pipework (6) and recirculated water storage device (3) (1) inlet tube connection;
Condenser (4) is connected to by gas circuit pipeline I (7) with the air admission hole of water ring vacuum pump (1);
The entrance that the exhaust outlet (32) of recirculated water storage device (3) coagulates retracting device (11) with gas-liquid again is connect;
The liquid outlet that the gas-liquid coagulates retracting device (11) again is connected to circulating water pipework (6);
And the circulating water outlet is located at the side middle and lower part of recirculated water storage device (3).
2. according to claim 1 a kind of for carbon fibre precursor production water ring vacuum pump liquid withdrawal system, feature It is, recirculated water storage device (3) further includes water supplement port (33) and discharge outlet (31).
3. according to claim 1 a kind of for carbon fibre precursor production water ring vacuum pump liquid withdrawal system, feature It is, gas-liquid mixed pipeline (5) is by being located at the cycle water inlet at the top of recirculated water storage device (3) and recirculated water storage device (3) it is connected to.
4. according to claim 3 a kind of for carbon fibre precursor production water ring vacuum pump liquid withdrawal system, feature It is, the projection of cycle water inlet and circulating water outlet on recirculated water storage device (3) bottom surface is misaligned.
5. according to claim 1 a kind of for carbon fibre precursor production water ring vacuum pump liquid withdrawal system, feature It is, the gas-liquid is coagulated again is equipped with gas vent at the top of retracting device (11).
CN201611255610.1A 2016-12-30 2016-12-30 One kind producing water ring vacuum pump liquid withdrawal system for carbon fibre precursor Active CN106640650B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611255610.1A CN106640650B (en) 2016-12-30 2016-12-30 One kind producing water ring vacuum pump liquid withdrawal system for carbon fibre precursor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611255610.1A CN106640650B (en) 2016-12-30 2016-12-30 One kind producing water ring vacuum pump liquid withdrawal system for carbon fibre precursor

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CN106640650B true CN106640650B (en) 2018-10-30

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2242626B2 (en) * 1972-08-30 1977-06-23 Bayer Ag, 5090 Leverkusen PROCESS FOR EVAPORATING PHOSGENIC SOLUTIONS
JPS54133617A (en) * 1978-04-07 1979-10-17 Fuji Electric Co Ltd Vacuum pump device composed of ejector and liquid ring type vacuum pump
CN100574838C (en) * 2007-12-03 2009-12-30 广东省佛山水泵厂有限公司 Solvent recovery method in the pharmacy industry and the solvent recovery system that realizes the method
CN201603414U (en) * 2009-11-27 2010-10-13 晨光生物科技集团股份有限公司 Device using vacuum pump for recycling water and recovering solvents
CN104912802A (en) * 2015-06-16 2015-09-16 安徽省化工设计院 Novel liquid loop vacuum pump system
CN204783671U (en) * 2015-06-16 2015-11-18 安徽省化工设计院 Novel liquid ring vacuum pump system
CN206329494U (en) * 2016-12-30 2017-07-14 哈尔滨天顺化工科技开发有限公司 One kind is used for carbon fibre precursor and produces water ring vacuum pump liquid withdrawal system

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