CN106315717A - MVR wastewater evaporation and concentration system - Google Patents
MVR wastewater evaporation and concentration system Download PDFInfo
- Publication number
- CN106315717A CN106315717A CN201610826145.6A CN201610826145A CN106315717A CN 106315717 A CN106315717 A CN 106315717A CN 201610826145 A CN201610826145 A CN 201610826145A CN 106315717 A CN106315717 A CN 106315717A
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- Prior art keywords
- waste water
- raw material
- separator
- pump
- water
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/041—Treatment of water, waste water, or sewage by heating by distillation or evaporation by means of vapour compression
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/06—Flash evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/10—Energy recovery
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to an MVR wastewater evaporation and concentration system which comprises an evaporator for evaporating raw material wastewater and a separator for separating a water-gas mixture generated in the evaporator. Concentrated waste liquid generated in the separator flows back into the separator through a concentrated water pump to realize circulating flow, and secondary steam obtained by separation of the separator after being pressurized by a water steam compressor enters the evaporator to form a heat source for heating the raw material wastewater. The concentrated waste liquid in the separator is ensured to constantly flow through the concentrated pump and ensured to be uniform in concentration, the problems of pipeline blockage and system instability caused by crystallizing in the separator when the raw material wastewater is concentrated to be close to saturated are effectively prevented, and energy consumption of the system is lowered. In addition, heat generated by the system itself is circularly utilized, so that running cost of the system is lowered, and applicability and reliability of an existing MVR evaporation and concentration device are improved.
Description
Technical field
The invention belongs to field of waste water treatment, be specifically related to a kind of MVR waste water evaporation concentration system.
Background technology
In the industries such as oil, chemical industry, pharmacy, plating, waste component is complicated, enormous amount, although utilize biochemistry, electrodialysis,
The methods such as reverse osmosis can realize major part water body qualified discharge after processing, but part high-concentration hardly-degradable Industrial Wastewater Treatment is still
Being technological difficulties, inorganic salt separation removal in waste water is comparatively ideal technical method by the method utilizing evaporative crystallization.Traditional
All there is the problems such as energy consumption is big, equipment is complicated, cost for wastewater treatment is high in reactor, single effect evaporation, multi-effect evaporation system etc., utilizes
MVR technical finesse high-concentration hardly-degradable waste water is technique direction.Traditional MVR system only comprises vaporizer, separator, steam
Compressor and other auxiliary equipments.When high slat-containing wastewater be concentrated near saturated time, often have part in existing MVR device separator
Inorganic salt crystallizes, and causes heat exchanger or line clogging, affects system effectiveness and reliability.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention provides a kind of MVR waste water evaporation concentration system.
In order to realize the purpose of the present invention, present invention employs techniques below scheme:
A kind of MVR waste water evaporation concentration system, including raw material waste water being evaporated the vaporizer of process and to evaporation
The air-water mixture produced in device carries out the separator separated, the concentrating spent liquor of described separator bottom by dense water pump backflow to
To realize circulating in separator, the indirect steam of described separator isolated enters institute after steam compressor boost
State vaporizer and constitute the thermal source that described raw material waste water is heated.
Preferably, described dense water pump and the connecting pipe of separator are also associated with described concentrating spent liquor is discharged system
Dense water valve.
Preferably, this system also includes raw material waste water is carried out the preheater of pretreatment, flash tank；Described raw material waste water by
Enter described flash tank after the preheating of described preheater and realize the flash vaporized separation of low boiling impurity in raw material waste water.
Further, this system also includes that condenser, cooler, described raw material waste water pass sequentially through described condenser, cold
But preheater is entered after device；The low boiling impurity gas of described flash tank isolated enters described condenser by condenser
Raw material waste water is condensed into liquid and is stored in temporary storage tank；The incoagulable gas produced in described vaporizer and the mixture of steam
Enter after described cooler is cooled down by the raw material waste water in described cooler and be stored in condensate water pot.
Preferably, the condensed water that described indirect steam is formed after vaporizer is constituted raw material waste water in described preheater
Carrying out the thermal source heated, described condensed water enters in condensate water pot after described preheater.
Preferably, the discharge duct leading to vaporizer of described steam compressor is provided with bypass high temperature steam pipeline,
Described bypass high temperature steam pipeline is provided with steam valve.
Preferably, described separator connect have described concentrating spent liquor is pumped to described vaporizer again in be evaporated
Circulating pump, described flash tank connect have raw material waste water force (forcing) pump is delivered to described vaporizer in the waste water pump that is evaporated, described
The outlet pipeline of waste water pump also flow to the outlet pipeline of described circulating pump.
Preferably, described condensate water pot connects the condensate pump discharged by condensed water, the outlet pipe of described condensate pump
Road is provided with outlet valve；Described condensate water pot top connects has vacuum pump, described vacuum delivery side of pump to communicate with air.
The beneficial effects of the present invention is:
(1) present invention guarantees concentrating spent liquor constant flow and even concentration in separator by dense water pump, prevents separator
Interior crystallize, simultaneously by the concentrating spent liquor that constantly produces in separator by dense water valve discharge system.The i.e. present invention is the most anti-
Only raw material Waste water concentrating near saturated time the pipeline blockage that causes because of separator intercrystalline and system unstability problem, reduce simultaneously
System energy consumption.Heat produced by cyclic utilization system the most of the present invention self, reduces system operation cost, improves existing
The suitability of MVR evaporation concentration device and reliability.
(2) raw material waste water of the present invention is provided with preheater, flash tank, to remove in raw material waste water before entering vaporizer
Low boiling impurity, effectively prevent the pressure caused because low boiling impurity evaporates into steam compressor in company with steam simultaneously
The change of contracting machine operating condition and other operation troubles.The method is particularly suited for the high-concentration hardly-degradable waste water containing low boiling impurity
The process of (such as oil extraction waste water).
(3) the low boiling impurity gas entrance condenser produced in flash tank of the present invention i.e. may utilize raw material waste water and completes low
The condensation of boiling contaminants gas, then utilizes temporary storage tank to complete the collection storage of low boiling impurity liquid.Produce in described vaporizer
Raw incoagulable gas enters described cooler with the mixture of steam, the raw material waste water through described cooler cool down
And form condensed water, and it being stored in afterwards in condensate water pot, incoagulable gas here refers to after condensation process not with water
Steam is condensed into the gas of liquid together.The present invention by arranging condenser, cooler achieve the low-temperature receiver utilizing system self
Cool down needing the steam cooled down, it is not necessary to extra low-temperature receiver puts into, and reduces cost for wastewater treatment.
(4) indirect steam of the present invention enters preheater after vaporizer, it is achieved with the raw material in described preheater
Waste water carries out heat exchange, and on the one hand raw material waste water has obtained the pre-heat treatment, and the indirect steam described in still further aspect has obtained entering one
The cooling of step, the present invention takes full advantage of low-temperature receiver and the thermal source of system self, greatly reduces energy consumption and system operation cost.
(5) heretofore described circulating pump, waste water pump can realize being evaporated in the mixing of two-way waste water pumps into vaporizer
Process, it is ensured that in vaporizer, be dried problem without heat exchange wall.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
In accompanying drawing, the implication of labelling is as follows:
The 1-condensate pump 2-vacuum pump 3-transh pump 4-waste water pump 5-dense water pump of circulating pump 6-
7-dense water valve 8-steam compressor 9-vaporizer 10-separator 11-condenser
12-cooler 13-preheater 14-flash tank 15-temporary storage tank 16-condensate water pot
17-inlet valve 18-outlet valve 19-steam valve
Detailed description of the invention
Below in conjunction with embodiment technical solution of the present invention made more specific detail:
Indirect steam described in literary composition, steam are the steam of water.
The present invention includes vaporizer 9, the separator 10 supplying raw material waste water to sequentially pass through, and described vaporizer 9 is to raw material waste water
Being evaporated, the air-water mixture produced in vaporizer 9 is separated by described separator 10, produces bottom described separator 10
Concentrating spent liquor backflow to separator 10 to realize circulating by dense water pump 6, the secondary produced in described separator 10
Steam enters described vaporizer 9 after steam compressor 8 supercharging and constitutes the thermal source heating described raw material waste water.Wherein
Raw material waste water is positioned at the evaporation side of described vaporizer 9, and described indirect steam is positioned at the condensation side of vaporizer 9.The present invention is by dense
Water pump 6 guarantees concentrating spent liquor constant flow and even concentration in separator 10, prevents from crystallizing bottom separator 10, will simultaneously
The concentrating spent liquor constantly produced in separator 10 discharges system by dense water valve 7.The method can be adapted to containing low boiling impurity
High-concentration hardly-degradable waste water (such as oil extraction waste water), can prevent raw material Waste water concentrating near saturated time because of separator 10 bottom crystal
The pipeline blockage caused and system unstability, reduce system energy consumption simultaneously.Cyclic utilization system the most of the present invention is produced self
Heat, reduce system operation cost, improve the suitability and the reliability of existing MVR evaporation concentration device.
This system also includes carrying out raw material waste water the preheater 13 of pretreatment, flash tank 14；Described raw material waste water is by institute
Enter described flash tank 14 after stating preheater 13 preheating and realize the flash vaporized separation of low boiling impurity in raw material waste water.The present invention
Raw material waste water is provided with preheater 13, flash tank 14 before entering vaporizer 9, to remove the low boiling impurity in raw material waste water,
Effectively prevent the compressor operating work caused because low boiling impurity evaporates into steam compressor 8 in company with steam simultaneously
Condition change and other operation troubles.The high-concentration hardly-degradable waste water that the method is particularly suited for containing low boiling impurity is (as useless in recovered the oil
Water) process.
This system also includes condenser 11, cooler 12, and described raw material waste water first entered before entering preheater 13 successively
Enter described condenser 11, cooler 12；The low boiling impurity gas of described flash tank 14 isolated enters described condenser 11
It is condensed into liquid by the raw material waste water in condenser and is stored in temporary storage tank 15；The incoagulability gas produced in described vaporizer 9
Body is stored in condensate water pot with the mixture described cooler 12 of entrance of steam after the raw material waste water cooling in described cooler
In 16.Low boiling impurity (such as the ethanol) gas produced in flash tank 14 of the present invention enters condenser 11 and i.e. may utilize raw material waste water
Complete the condensation of low boiling impurity gas, then utilize temporary storage tank 15 to complete the collection storage of low boiling impurity liquid.Described steaming
The incoagulable gas produced in sending out device 9 enters described cooler 12 with the mixture of steam, former by through described cooler 12
Material waste water carry out cooling down and forming condensed water, be stored in afterwards in condensate water pot 16, incoagulable gas here refer to through
It is not condensed into the gas of liquid with steam after condensation process.The present invention by arranging condenser 11, cooler 12 realizes
Utilize the low-temperature receiver of system self to needing the steam cooled down to cool down, it is not necessary to extra low-temperature receiver puts into, and reduces useless
Cost of water treatment.
Raw material waste water in described preheater 13 is carried out by the condensed water composition that described indirect steam is formed after vaporizer 9
The thermal source of heating, described condensed water enters in condensate water pot 16 after described preheater 13.Indirect steam warp of the present invention
Preheater 13 is entered, it is achieved carry out heat exchange, on the one hand raw material waste water with the raw material waste water in described preheater 13 after pervaporation device 9
Having obtained the pre-heat treatment, the indirect steam described in still further aspect has obtained further cooling, and the present invention takes full advantage of and is
Unite self low-temperature receiver and thermal source, greatly reduce energy consumption and system operation cost.
Described separator 10 connects the circulation that described concentrating spent liquor is pumped in described vaporizer 9 be evaporated again
Pump 5, described flash tank 14 connect have raw material waste water force (forcing) pump is delivered to described vaporizer 9 in the waste water pump 4 that is evaporated, described
The outlet pipeline of waste water pump 4 also flow to the outlet pipeline of described circulating pump 5.Heretofore described circulating pump 5, waste water pump 4 are permissible
Realize being evaporated processing in the mixing of two-way waste water pumps into vaporizer 9, it is ensured that in vaporizer 9, be dried problem without heat exchange wall.
Described condensate water pot 16 connects the condensate pump 1 discharged by condensed water, on the outlet pipeline of described condensate pump 1
It is provided with outlet valve 18；Described condensate water pot 16 top connects has vacuum pump 2, the outlet of described vacuum pump 2 to communicate with air.Described
Vacuum pump 2 has certain vacuum in maintaining vaporizer 9, and gets rid of the incoagulable gas in vaporizer 9 and steam, it is ensured that be
System is in stable evaporating state.
Claims (8)
1. a MVR waste water evaporation concentration system, including raw material waste water being evaporated the vaporizer (9) of process and to evaporation
The gas-vapor mix produced in device (9) carries out the separator (10) separated, it is characterised in that: described separator (10) bottom dense
Contracting waste liquid backflows to separator (10) to realize circulating by dense water pump (6), described separator (10) isolated
Indirect steam enters what described raw material waste water was heated by described vaporizer (9) composition after steam compressor (8) supercharging
Thermal source.
2. MVR waste water evaporation concentration system as claimed in claim 1, it is characterised in that: described dense water pump (6) and separator
(10) it is also associated with discharging described concentrating spent liquor the dense water valve (7) of system on connecting pipe.
3. MVR waste water evaporation concentration system as claimed in claim 1, it is characterised in that: this system also includes raw material waste water
Carry out the preheater (13) of pretreatment, flash tank (14)；Described raw material waste water enters described after being preheated by described preheater (13)
Flash tank (14) realizes the flash vaporized separation of low boiling impurity in raw material waste water.
4. MVR waste water evaporation concentration system as claimed in claim 3, it is characterised in that: this system also include condenser (11),
Cooler (12), described raw material waste water passes sequentially through described condenser (11), cooler (12) enters preheater (13) afterwards；Described
The low boiling impurity gas of flash tank (14) isolated enters described condenser (11) and is condensed by the raw material waste water in condenser
For liquid and in being stored in temporary storage tank (15)；The incoagulable gas produced in described vaporizer (9) enters with the mixture of steam
Described cooler (12) is stored in condensate water pot (16) after being cooled down by the raw material waste water in described cooler.
5. MVR waste water evaporation concentration system as claimed in claim 3, it is characterised in that: described indirect steam is through vaporizer
(9) condensed water formed afterwards constitutes the thermal source heating described preheater (13) interior raw material waste water, and described condensed water passes through
Enter after described preheater (13) in condensate water pot (16).
6. MVR waste water evaporation concentration system as claimed in claim 3, it is characterised in that: leading to of described steam compressor (8)
Discharge duct to vaporizer (9) is provided with bypass high temperature steam pipeline, and described bypass high temperature steam pipeline is provided with steam valve
(19)。
7. MVR waste water evaporation concentration system as claimed in claim 3, it is characterised in that: described separator (10) connect have by
The circulating pump (5) that described concentrating spent liquor is evaporated in being again pumped to described vaporizer (9), described flash tank (14) connects to be had
The waste water pump (4) being evaporated in raw material waste water force (forcing) pump is delivered to described vaporizer (9), the outlet pipe of described waste water pump (4)
Road also flow to the outlet pipeline of described circulating pump (5).
8. the MVR waste water evaporation concentration system as described in claim 4 or 5, it is characterised in that: described condensate water pot (16) connects
Having the condensate pump (1) discharged by condensed water, the outlet pipeline of described condensate pump (1) is provided with outlet valve (18)；Described cold
Solidifying water pot (16) top connects has vacuum pump (2), the outlet of described vacuum pump (2) to communicate with air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610826145.6A CN106315717B (en) | 2016-09-14 | 2016-09-14 | A kind of MVR waste water evaporation concentration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610826145.6A CN106315717B (en) | 2016-09-14 | 2016-09-14 | A kind of MVR waste water evaporation concentration device |
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| CN106315717A true CN106315717A (en) | 2017-01-11 |
| CN106315717B CN106315717B (en) | 2019-05-28 |
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| CN201610826145.6A Active CN106315717B (en) | 2016-09-14 | 2016-09-14 | A kind of MVR waste water evaporation concentration device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107151937A (en) * | 2017-05-12 | 2017-09-12 | 陕西科技大学 | A kind of tail gas condensing water circle device |
| CN107954560A (en) * | 2017-11-08 | 2018-04-24 | 西安协力动力科技有限公司 | The technique that vapor recompression is concentrated by evaporation joint flue spray technique processing waste water |
| CN108622971A (en) * | 2018-05-30 | 2018-10-09 | 哈尔滨理工大学 | Utilize the MVR energy conservation and environmental protection sewage disposal systems of new energy |
| CN108946850A (en) * | 2018-08-14 | 2018-12-07 | 河北蓝江生物环保科技有限公司 | Evaporate the Retreatment method of raffinate |
| CN111056580A (en) * | 2019-12-11 | 2020-04-24 | 上海缔森能源技术有限公司 | Vinyl sulfate waste water treatment and recovery system |
| CN117486293A (en) * | 2023-12-12 | 2024-02-02 | 蓝色起源环境科技(常州)有限公司 | Water treatment system and working method thereof |
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| CN102603023A (en) * | 2012-03-23 | 2012-07-25 | 郭朝军 | Method and equipment for carrying out evaporation-concentration treatment on saline water by utilizing solar energy and air |
| CN102616973A (en) * | 2012-04-17 | 2012-08-01 | 常州光辉生物科技有限公司 | Method and device for processing high-saline organic wastewater |
| CN204395479U (en) * | 2015-01-18 | 2015-06-17 | 丁武轩 | A kind of continuous evaporative crystallization device of function of mechanical steam recompression |
| CN205275243U (en) * | 2015-12-04 | 2016-06-01 | 武汉宏澳绿色能源工程有限责任公司 | Evaporation plant of board -like forced circulation's of MVR landfill leachate reverse osmosis dope |
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| CN101456635A (en) * | 2008-12-17 | 2009-06-17 | 深圳市能源环保有限公司 | Process and system for treating electric power plant waste water |
| CN102603023A (en) * | 2012-03-23 | 2012-07-25 | 郭朝军 | Method and equipment for carrying out evaporation-concentration treatment on saline water by utilizing solar energy and air |
| CN102616973A (en) * | 2012-04-17 | 2012-08-01 | 常州光辉生物科技有限公司 | Method and device for processing high-saline organic wastewater |
| CN204395479U (en) * | 2015-01-18 | 2015-06-17 | 丁武轩 | A kind of continuous evaporative crystallization device of function of mechanical steam recompression |
| CN205275243U (en) * | 2015-12-04 | 2016-06-01 | 武汉宏澳绿色能源工程有限责任公司 | Evaporation plant of board -like forced circulation's of MVR landfill leachate reverse osmosis dope |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107151937A (en) * | 2017-05-12 | 2017-09-12 | 陕西科技大学 | A kind of tail gas condensing water circle device |
| CN107954560A (en) * | 2017-11-08 | 2018-04-24 | 西安协力动力科技有限公司 | The technique that vapor recompression is concentrated by evaporation joint flue spray technique processing waste water |
| CN108622971A (en) * | 2018-05-30 | 2018-10-09 | 哈尔滨理工大学 | Utilize the MVR energy conservation and environmental protection sewage disposal systems of new energy |
| CN108622971B (en) * | 2018-05-30 | 2021-04-16 | 哈尔滨理工大学 | MVR energy-saving environment-friendly sewage treatment system utilizing new energy |
| CN108946850A (en) * | 2018-08-14 | 2018-12-07 | 河北蓝江生物环保科技有限公司 | Evaporate the Retreatment method of raffinate |
| CN108946850B (en) * | 2018-08-14 | 2021-07-16 | 河北蓝江生物环保科技有限公司 | Method for reprocessing evaporation raffinate |
| CN111056580A (en) * | 2019-12-11 | 2020-04-24 | 上海缔森能源技术有限公司 | Vinyl sulfate waste water treatment and recovery system |
| CN117486293A (en) * | 2023-12-12 | 2024-02-02 | 蓝色起源环境科技(常州)有限公司 | Water treatment system and working method thereof |
| CN117486293B (en) * | 2023-12-12 | 2024-08-23 | 蓝色起源环境科技(常州)有限公司 | Water treatment system and working method thereof |
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|---|---|
| CN106315717B (en) | 2019-05-28 |
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Address after: 230031 No. 888 Changjiang West Road, Shushan District, Hefei, Anhui. Applicant after: Hefei General Machinery Research Institute Co., Ltd. Address before: 230031 No. 888 Changjiang West Road, Shushan District, Hefei, Anhui. Applicant before: Hefei Universal Machinery Inst. |
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