CN203794657U - Compression flash-evaporation evaporator for wastewater - Google Patents

Compression flash-evaporation evaporator for wastewater Download PDF

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Publication number
CN203794657U
CN203794657U CN201420128976.2U CN201420128976U CN203794657U CN 203794657 U CN203794657 U CN 203794657U CN 201420128976 U CN201420128976 U CN 201420128976U CN 203794657 U CN203794657 U CN 203794657U
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CN
China
Prior art keywords
heat exchanger
wastewater
waste water
flash
evaporation
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Expired - Fee Related
Application number
CN201420128976.2U
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Chinese (zh)
Inventor
陈业钢
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SHANGHAI DONGSHUO ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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SHANGHAI DONGSHUO ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Priority to CN201420128976.2U priority Critical patent/CN203794657U/en
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Publication of CN203794657U publication Critical patent/CN203794657U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a compression flash-evaporation evaporator for wastewater and specifically relates to the technical field of a wastewater evaporation device. A wastewater outlet (8) of a secondary heat exchanger (2) is connected with a pre-heated wastewater inlet (9) at the upper end of a primary heat exchanger (3); a heated wastewater outlet (10) at the lower end of the primary heat exchanger (3) is connected with a flash-evaporation evaporator (4); the upper end of the primary heat exchanger (3) is connected with a steam inlet (11) at the upper end of the primary heat exchanger (3) by a steam compressor (5); and the lower end of the flash-evaporation evaporator (4) is connected with the preheated wastewater inlet (9) at the upper end of the primary heat exchanger (3) by a high-speed circulating pump (6). The compression flash-evaporation evaporator for wastewater disclosed by the utility model can improve evaporation efficiency and has energy-saving effect, equipment is simple and easy to operate and control, so that wastewater evaporation under lower energy consumption is realized.

Description

A kind of waste water compression flash evaporator
Technical field:
The utility model relates to waste evaporator plant technical field, is specifically related to a kind of waste water compression flash evaporator.
Background technology:
Current industrialized method of evaporating mainly contains multistage flash evaporation, multi-effect distilling, mechanical vapour recompression etc.The cost of existing vaporizer is generally higher, and mechanical vapour recompression is strict to the requirement of influent quality, and the volatile organic matter in waste water, hardness, suspended substance have a strong impact on mass-transfer efficiency and evaporation effect generation, have restricted the popularization of waste water vaporizer.Therefore how reducing the cost of waste water vaporizer, improve the suitability of waste water vaporizer, is the subject matter of waste water vaporizer industrialization.In chemical industry and coal chemical technology, wastewater treatment also realizes the prerequisite that zero release is its development of assurance, and the application of waste water vaporizer is necessary technological method, guarantees that the waste water of high pollution does not work the mischief to environment.
Utility model content:
The purpose of this utility model is to provide a kind of waste water compression flash evaporator, it can improve vaporization efficiency, have energy-saving effect, equipment is simple, and easy handling is controlled, by flash vaporization technology and the abundant combination of mechanically compress Energy Recovery Technology, the steam that flash distillation produces, through the mode of mechanically compress, improves its heat containing value, returns flash evaporation unit, as evaporation heat source, realize evaporating waste water under less energy-consumption.
In order to solve the existing problem of background technology, the utility model is by the following technical solutions: it comprises waste water lifting pump 1, auxiliary heat exchanger 2, main heat exchanger 3, flash evaporator 4, vapour compressor 5, Speed Circulation Pump 6, described waste water lifting pump 1 is connected with the waste water import 7 of auxiliary heat exchanger 2 upper ends, the wastewater outlet 8 of auxiliary heat exchanger 2 is connected with the pre-thermal wastewater import 9 of main heat exchanger 3 upper ends, main heat exchanger 3 lower end heating wastewater outlets 10 are connected with flash evaporator 4, main heat exchanger 3 upper ends are connected with main heat exchanger 3 upper steam entrances 11 by vapour compressor 5, flash evaporator 4 lower ends are connected with the main heat exchanger 3 pre-thermal wastewater imports 9 in upper end by Speed Circulation Pump 6, main heat exchanger 3 lower end condensate outlets 12 are connected with the phlegma import 13 of auxiliary heat exchanger 2 lower ends, auxiliary heat exchanger 2 lower end supersaturation condensate outlets 14 connect water exhaust system.
The utility model principle of work: waste water is introduced into auxiliary heat exchanger 2 via lift pump 1, through tentatively passing into a small amount of steam, waste water is risen to specified temp via main heat exchanger 3, enter flash evaporator 4, in flash evaporator 4, it is subnormal ambient, flash evaporator 4 ends are provided with Speed Circulation Pump 6, waste water is circulated at main heat exchanger 3 to the inner High Speed Turbulent that forms of flash evaporator 4, waste water enters flash evaporator 4 flash evapns with suitable flow velocity, produce water vapour and concentrated solution, water vapour passes into main heat exchanger 3 after via vapour compressor 5 increasing temperature and pressure, thermal source as main heat exchanger 3, and then pass into auxiliary heat exchanger 2, utilize waste heat to heat up to the follow-up waste water that enters system, self condense into distilled water and deliver to user's water spot simultaneously, thereby reach the object that evaporation is reclaimed.The concentrated solution that system produces is discharged and is passed into crystallization apparatus, carries out crystallization treatment outward transport.
The utlity model has following beneficial effect: it can improve vaporization efficiency, there is energy-saving effect, equipment is simple, easy handling is controlled, and is by flash vaporization technology and the abundant combination of mechanically compress Energy Recovery Technology, and the steam that flash distillation produces is through the mode of mechanically compress, improve its heat containing value, return flash evaporation unit, as evaporation heat source, realize evaporating waste water under less energy-consumption.
Accompanying drawing explanation:
Fig. 1 is the utility model structural representation.
Embodiment:
Referring to Fig. 1, this embodiment is by the following technical solutions: it comprises waste water lifting pump 1, auxiliary heat exchanger 2, main heat exchanger 3, flash evaporator 4, vapour compressor 5, Speed Circulation Pump 6, described waste water lifting pump 1 is connected with the waste water import 7 of auxiliary heat exchanger 2 upper ends, the wastewater outlet 8 of auxiliary heat exchanger 2 is connected with the pre-thermal wastewater import 9 of main heat exchanger 3 upper ends, main heat exchanger 3 lower end heating wastewater outlets 10 are connected with flash evaporator 4, main heat exchanger 3 upper ends are connected with main heat exchanger 3 upper steam entrances 11 by vapour compressor 5, flash evaporator 4 lower ends are connected with the main heat exchanger 3 pre-thermal wastewater imports 9 in upper end by Speed Circulation Pump 6, main heat exchanger 3 lower end condensate outlets 12 are connected with the phlegma import 13 of auxiliary heat exchanger 2 lower ends, auxiliary heat exchanger 2 lower end supersaturation condensate outlets 14 connect water exhaust system.
Described auxiliary heat exchanger 2, main heat exchanger 3 are external heat exchanger, interchanger is arranged on vaporizer outside, can avoid entering in vaporizer maintaining, reduce working strength and cost, reduced the material requirement to vaporizer tank body, tank body adopts nano ceramic material to make, corrosion-resistant, high temperature resistant, less scaling, reduces follow-up maintenance cost and exists;
Described flash evaporator 4 adopts external heat exchanger, immersion boiling technique, high flow rate circulation technology, and exchange condensation process.Immersion boiling technique has been used in vaporizer inside, has reduced water smoke and the foam of compressed vapour system, and vaporizer tank body is less than traditional, reaches the space-efficient object that saves again attractive in appearance.Vaporizer also adopts high flow rate circulation technology, when vapo(u)rization system is moved, waste water carries out thermal pretreatment through auxiliary interchanger, by water pump, be transported in the recycle system again, pass through Speed Circulation Pump, water is circulated between vaporizer and interchanger, by high flow rate and high shear rate, increase heat transfer efficiencies, make heat exchanger system surface be difficult for producing salt crust.Vaporizer adopts exchange condensation process, the steam that evaporator evaporation process produces is after vapour compressor compression increasing temperature and pressure, water vapor is sent to the cleaning end of main heat exchanger, inner at interchanger, the steam of high temperature and high pressure passes to its latent heat in the sewage of circulation by the disc of interchanger, vapor condenses becomes supersaturation phlegma, supersaturation phlegma passes into auxiliary interchanger again and newly enters intrasystem low-temperature wastewater and carries out heat exchange, thereby waste water is just heated up, the further condensation of supersaturation phlegma simultaneously, discharge system is outward to using water spot.So, allow whole system save the condensing tower link in traditional technology, save equipment cost and space, also allow waste water tentatively be heated up, reduce the power consumption of steam consumption and vapour compressor simultaneously.
This embodiment principle of work: waste water is introduced into auxiliary heat exchanger 2 via lift pump 1, through tentatively passing into a small amount of steam, waste water is risen to specified temp via main heat exchanger 3, enter flash evaporator 4, in flash evaporator 4, it is subnormal ambient, flash evaporator 4 ends are provided with Speed Circulation Pump 6, waste water is circulated at main heat exchanger 3 to the inner High Speed Turbulent that forms of flash evaporator 4, waste water enters flash evaporator 4 flash evapns with suitable flow velocity, produce water vapour and concentrated solution, water vapour passes into main heat exchanger 3 after via vapour compressor 5 increasing temperature and pressure, thermal source as main heat exchanger 3, then saturated phlegma passes into auxiliary heat exchanger 2 again, utilize waste heat to heat up to the follow-up waste water that enters system, self condense into distilled water and deliver to user's water spot simultaneously, thereby reach the object that evaporation is reclaimed.The concentrated solution that system produces is discharged and is passed into crystallization apparatus, carries out crystallization treatment outward transport.
The utlity model has following beneficial effect: it can improve vaporization efficiency, there is energy-saving effect, equipment is simple, easy handling is controlled, and is by flash vaporization technology and the abundant combination of mechanically compress Energy Recovery Technology, and the steam that flash distillation produces is through the mode of mechanically compress, improve its heat containing value, return flash evaporation unit, as evaporation heat source, realize evaporating waste water under less energy-consumption.

Claims (1)

1. a waste water compresses flash evaporator, it is characterized in that it comprises waste water lifting pump (1), auxiliary heat exchanger (2), main heat exchanger (3), flash evaporator (4), vapour compressor (5), Speed Circulation Pump (6), described waste water lifting pump (1) is connected with the waste water import (7) of auxiliary heat exchanger (2) upper end, the wastewater outlet (8) of auxiliary heat exchanger (2) is connected with the pre-thermal wastewater import (9) of main heat exchanger (3) upper end, main heat exchanger (3) lower end heating wastewater outlet (10) is connected with flash evaporator (4), main heat exchanger (3) upper end is connected with main heat exchanger (3) upper steam entrance (11) by vapour compressor (5), flash evaporator (4) lower end is connected with main heat exchanger (3) the pre-thermal wastewater import in upper end (9) by Speed Circulation Pump (6), main heat exchanger (3) lower end condensate outlet (12) is connected with the phlegma import (13) of auxiliary heat exchanger (2) lower end, auxiliary heat exchanger (2) lower end supersaturation condensate outlet (14) connects water exhaust system.
CN201420128976.2U 2014-03-21 2014-03-21 Compression flash-evaporation evaporator for wastewater Expired - Fee Related CN203794657U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420128976.2U CN203794657U (en) 2014-03-21 2014-03-21 Compression flash-evaporation evaporator for wastewater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420128976.2U CN203794657U (en) 2014-03-21 2014-03-21 Compression flash-evaporation evaporator for wastewater

Publications (1)

Publication Number Publication Date
CN203794657U true CN203794657U (en) 2014-08-27

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104341072A (en) * 2014-11-12 2015-02-11 湖北加德科技股份有限公司 Energy-saving waste-water continuous evaporating crystallizing system
CN104355431A (en) * 2014-11-12 2015-02-18 湖北加德科技股份有限公司 Device capable of efficiently treating and recycling reverse osmosis concentrated water and high-salt wastewater

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104341072A (en) * 2014-11-12 2015-02-11 湖北加德科技股份有限公司 Energy-saving waste-water continuous evaporating crystallizing system
CN104355431A (en) * 2014-11-12 2015-02-18 湖北加德科技股份有限公司 Device capable of efficiently treating and recycling reverse osmosis concentrated water and high-salt wastewater

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140827

Termination date: 20200321