CN216295220U - MVR evaporation concentration system for processing emulsion - Google Patents
MVR evaporation concentration system for processing emulsion Download PDFInfo
- Publication number
- CN216295220U CN216295220U CN202122449407.0U CN202122449407U CN216295220U CN 216295220 U CN216295220 U CN 216295220U CN 202122449407 U CN202122449407 U CN 202122449407U CN 216295220 U CN216295220 U CN 216295220U
- Authority
- CN
- China
- Prior art keywords
- pump
- storage tank
- concentrated solution
- water
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses an MVR evaporation and concentration system for treating emulsion, which comprises a raw material buffer tank, a water inlet filter, preheating equipment, an evaporator, a gas-liquid separator, a condensed water storage tank, a concentrated solution cooling device, a concentrated solution storage tank, a steam compressor, a shaft seal water system, a cleaning system, a dosing system and a vacuum system, wherein the raw material buffer tank, the water inlet filter, the preheating equipment, the evaporator, the gas-liquid separator, the condensed water storage tank, the concentrated solution cooling device, the concentrated solution storage tank, the steam compressor, the shaft seal water system, the cleaning system, the dosing system and the vacuum system are connected through pipelines, valves and related pumps. The bottom of feeding buffer tank is through connecting the import of charge-in pump to the import through filter, multistage preheating device and evaporimeter links to each other, at vapour and liquid separator top silk screen demister, the import of circulating pump and the import of discharge pump are connected to the bottom, and the condensate storage tank is connected to the evaporimeter condensation side, and steam condensate passes through condensate storage tank, condensate pump and connects heat transfer device. The invention fully utilizes the energy in the system, achieves the purposes of energy saving, high efficiency and maximization, has high system automation degree, good antifouling and blocking scaling effect and high concentration rate, and can realize continuous and stable evaporation concentration process.
Description
Technical Field
The invention belongs to the field of evaporation and concentration systems, and particularly relates to an MVR evaporation and concentration system for treating emulsion.
Background
With the rapid development of the machining industry, the amount of the produced emulsion is increased, which brings great challenges to the environmental protection industry in China, the waste emulsion is oily wastewater, the water quality components are complex, the contents of COD, oils and SS are high, the water quality is alkalescent and is difficult to treat, and in addition, the waste emulsion contains a large amount of volatile organic compounds, which cause great harm to the atmosphere and the ecological environment.
At present, the traditional treatment modes of the emulsion mainly comprise a dosing flocculation coagulation method, an advanced oxidation method and a traditional treatment mode, a large amount of chemical agents are consumed, effluent water often cannot meet the discharge requirement, the treatment cost is high, a large amount of oil sludge is generated to serve as hazardous waste, the evaporation concentration method does not need to add a large amount of agents, the concentration rate is high, the effluent water meets the discharge requirement, and meanwhile, MVR is a fourth generation evaporation technology which appears after single-effect evaporation, multi-effect evaporation and thermal steam recompression (TVR). The core of the technology is that after low-grade secondary steam generated by an evaporation chamber is converted into high-grade secondary steam by using a steam compressor, the high-grade secondary steam can enter the evaporator again to replace fresh steam for heat exchange, and the whole energy of the secondary steam is completely utilized. In addition, how to fully utilize the effective heat in the system also concerns the energy saving performance of the whole system.
Disclosure of Invention
The invention aims to provide an MVR evaporation and concentration system for treating emulsion, which aims to solve the technical problems of low energy-saving property, serious scaling and high treatment cost of the system.
In order to solve the technical problems, the specific technical scheme of the invention is as follows:
an MVR evaporation concentration system for treating emulsion comprises a feeding buffer tank, a feeding pump, a water inlet filter, a multi-stage preheating device, an evaporator, a gas-liquid separator, a steam compressor, a circulating pump, a discharging pump, a concentrated solution cooling device, a concentrated solution storage tank, a condensed water pump, a condenser, a shaft seal water system, a cleaning system, a dosing system and a vacuum system;
the bottom of the feeding buffer tank is connected with an inlet of a feeding pump and is communicated with an inlet of an evaporator through a water inlet filter and a multi-stage preheating device;
a raw material liquid outlet of the evaporator is connected with a gas-liquid separator;
the bottom of the gas-liquid separator is connected with an inlet of the circulating pump and an inlet of the discharging pump, and an outlet at the top of the gas-liquid separator is connected with the steam compressor;
the outlet of the circulating pump is connected with the inlet of the evaporator;
the outlet of the discharge pump is connected with a concentrated liquid cooling device;
the discharge hole at the bottom of the concentrated liquid cooling device is connected with a concentrated liquid storage tank;
a condensed water outlet of the evaporator is connected with a condensed water storage tank and is communicated with the multistage preheating device through a condensed water pump;
the bottom of the condensed water storage tank is communicated with a vacuum system through a connecting condenser;
the vacuum system is connected with the outlet of the condenser;
the water outlet pipeline of the cleaning system is connected with the outlet pipeline of the water inlet filter;
the shaft seal water system is connected with a seal water pipe of a water pump in the system;
and a dosing pipeline of the dosing system is connected with an outlet pipeline of the water inlet filter.
Further, the multistage preheating device comprises a first preheating device and a second preheating device; the waste liquid needs to be preheated to a preset temperature before entering the evaporator, the raw material liquid and the condensed water are respectively subjected to primary preheating in a first preheating device, and then secondary preheating is performed through a second preheating device which takes externally generated steam as a heat source.
Furthermore, the outlet of the feed pump is connected with a water inlet filter, the filtering precision is 100-.
Further, the vapor compressor is a centrifugal compressor, a roots compressor or a screw compressor.
Further, the dosing system comprises a dosing tank and a dosing pump;
the dosing box is provided with a stirring device;
the outlet of the dosing pump is connected with the water outlet pipeline of the feeding pump.
Furthermore, a wire mesh demister is arranged at the top end of the gas-liquid separator and can filter liquid foam and separate and purify secondary steam.
Furthermore, stirring equipment is arranged in the concentrated solution cooling device, the temperature of the concentrated solution after evaporation is reduced to below 60 ℃, and the concentrated solution is convenient to store and transport.
The MVR evaporation concentration system for processing the emulsion has the following advantages:
1. the invention has the advantages of energy saving and high efficiency. Compared with the traditional evaporation technology, the MVR evaporation system completely utilizes all heat of secondary steam and effective waste heat in the system, and the utilization rate of the heat in the system is brought into full play.
2. The invention uses the cleaning system, and can effectively prevent the scaling of the equipment pipeline.
3. The concentration rate is high: compared with the traditional emulsion treatment technology, the invention can realize 10-20 times of high concentration ratio, greatly reduce the amount of concentrated solution and simultaneously realize that the effluent meets the discharge requirement.
Drawings
FIG. 1 is a schematic view of an MVR evaporative concentration system for processing an emulsion according to the present invention;
the notation in the figure is: 1. a raw material buffer tank; 2. a feed pump; 3. a water inlet filter; 4. a first preheating device; 5. a second preheating device; 6. an evaporator; 7. a gas-liquid separator; 8. a vapor compressor; 9. A circulation pump; 10. a discharge pump; 11. a concentrated liquid cooling device; 12. a concentrated solution storage tank; 13. a condensed water storage tank; 14. a condensate pump; 15. a condenser; 16. a dosing system; 17. cleaning the system; 18. a vacuum system.
Detailed Description
For better understanding of the objects, structure and functions of the present invention, the MVR evaporation and concentration system for processing emulsion according to the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the system comprises a feeding buffer tank 1, a feeding pump 2, a water inlet filter 3, a multi-stage preheating device, an evaporator 6, a gas-liquid separator 7, a vapor compressor 8, a circulating pump 9, a discharging pump 10, a concentrated liquid cooling device 11, a concentrated liquid storage tank 12, a condensed water storage tank 13, a condensed water pump 14, a condenser 15, a shaft seal water system, a cleaning system 17, a dosing system 16 and a vacuum system 18.
The bottom of the feeding buffer tank 1 is connected with an inlet of a feeding pump 2 and is communicated with an inlet of an evaporator 6 through a water inlet filter 3 and a multi-stage preheating device.
And a raw material liquid outlet of the evaporator 6 is connected with a gas-liquid separator 7.
The bottom of the gas-liquid separator 7 is connected with an inlet of a circulating pump 9 and an inlet of a discharging pump 10, and an outlet at the top of the gas-liquid separator is connected with a steam compressor 8.
And a wire mesh demister is arranged at the top end of the gas-liquid separator 7 and can filter liquid foam and separate and purify secondary steam.
The vapor compressor 8 employs a centrifugal compressor, a roots compressor or a screw compressor according to the throughput of the system.
The outlet of the circulation pump 9 is connected to the inlet of the evaporator 6.
The outlet of the discharge pump 10 is connected with a concentrated liquid cooling device 11.
And a discharge hole at the bottom of the concentrated solution cooling device 11 is connected with a concentrated solution storage tank 12.
And a condensed water outlet of the evaporator 6 is connected with a condensed water storage tank 13 and is communicated with the multistage preheating device through a condensed water pump 14.
The bottom of the condensed water storage tank 13 is communicated with a vacuum system through a connecting condenser 15.
The dosing system 16 comprises a dosing tank and a dosing pump; the dosing box is provided with a stirring device; the outlet of the medicine adding pump is connected with the water outlet pipeline of the feeding pump 2.
The cleaning system 17 comprises a cleaning water tank and a cleaning water pump;
the shaft seal water system comprises a shaft seal water tank, a shaft seal water pump and a shaft seal water cooler;
the vacuum system 18 comprises a vacuum condenser, a water-ring vacuum pump and a vacuum condensate storage tank, wherein the vacuum condensate storage tank provides working fluid for the water-ring vacuum pump.
The concentrated solution cooling device 11 is internally provided with stirring equipment, and the temperature of the concentrated solution after evaporation is reduced to below 60 ℃, so that the concentrated solution is convenient to store and transport.
The invention relates to an MVR evaporation concentration system for treating emulsion, which comprises the following steps:
feed liquid in the raw material buffer tank 1 passes through a raw material pump 2 and a water inlet filter 3 and then enters a multistage preheating device, the multistage preheating device comprises a first preheating device 4 and a second preheating device 5, when the equipment is started, external fresh steam is required to be heated to a preset temperature and then enters an evaporator 6 from a pipeline at the bottom of a gas-liquid separator 7, the feed liquid is forced to circulate between the evaporator 6 and the gas-liquid separator 7 by a circulating pump 9, scaling is effectively prevented and the heat exchange effect is enhanced, secondary steam generated by evaporation enters a steam compressor 8 after being separated and purified by a wire mesh demister arranged at the top of the gas-liquid separator 7, compressed superheated steam enters the evaporator 6 again after being subjected to saturation treatment, the energy-saving effect is achieved, when the set concentration multiplying power requirement is met, a discharge pump 10 is started, concentrated liquid is conveyed to a concentrated liquid cooling device 11, and after the temperature is reduced, the concentrated solution is stored in the concentrated solution storage tank 12 and can be transported out as hazardous waste. The comdenstion water that the evaporation process produced then enters into comdenstion water storage tank 13, carry to first preheating device 4 by the comdenstion water that condensate pump 15 will have the waste heat, carry out the heat transfer with raw material liquid, effectively utilize the waste heat that the system can, reduce the energy consumption, in the evaporation process, charge system 16 need will carry to the raw material liquid inlet channel through the charge pump at the medicament that the configuration is good, prevent a large amount of foams that produce in the high temperature evaporation process, influence vapor compressor 8's result of use and life, going on along with the evaporation process, open vacuum system 18, discharge the non-condensable gas in the evaporation process, guarantee heat transfer effect and control evaporating temperature. When the evaporation concentration task is completed, the system needs to be flushed, a preset flushing pipeline can be adopted to flush equipment and pipelines in the system, when the system is stopped for maintenance or runs for 3-6 months, the system needs to be cleaned for ensuring the heat exchange effect, a cleaning system 17 is started, a configured cleaning agent is conveyed to a water inlet pipeline by a cleaning pump, the equipment and the pipelines in the system are cleaned, and a shaft seal water system needs to provide sealing water for the equipment such as the pump when the system is started.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (7)
1. An MVR evaporation and concentration system for treating emulsion is characterized by comprising a feeding buffer tank (1), a feeding pump (2), a water inlet filter (3), a multi-stage preheating device, an evaporator (6), a gas-liquid separator (7), a steam compressor (8), a circulating pump (9), a discharge pump (10), a concentrated solution cooling device (11), a concentrated solution storage tank (12), a condensed water storage tank (13), a condensed water pump (14), a condenser (15), a shaft seal water system, a cleaning system (17), a medicine adding system (16) and a vacuum system (18);
the bottom of the feeding buffer tank (1) is connected with an inlet of a feeding pump (2) and is communicated with an inlet of an evaporator (6) through a water inlet filter (3) and a multi-stage preheating device;
a raw material liquid outlet of the evaporator (6) is connected with a gas-liquid separator (7);
the bottom of the gas-liquid separator (7) is connected with an inlet of a circulating pump (9) and an inlet of a discharge pump (10), and an outlet at the top of the gas-liquid separator is connected with a steam compressor (8);
the outlet of the circulating pump (9) is connected with the inlet of the evaporator (6);
the outlet of the discharge pump (10) is connected with a concentrated liquid cooling device (11);
a discharge hole at the bottom of the concentrated solution cooling device (11) is connected with a concentrated solution storage tank (12);
a condensed water outlet of the evaporator (6) is connected with a condensed water storage tank (13) and is communicated with the multi-stage preheating device through a condensed water pump (14);
the bottom of the condensed water storage tank (13) is communicated with a vacuum system (18) through a connecting condenser (15);
the vacuum system (18) is connected with the outlet of the condenser (15);
the water outlet pipeline of the cleaning system (17) is connected with the outlet pipeline of the water inlet filter (3);
the shaft seal water system is connected with a seal water pipe of a water pump in the system;
and a dosing pipeline of the dosing system (16) is connected with an outlet pipeline of the water inlet filter (3).
2. The MVR evaporative concentration system for processing an emulsion according to claim 1, wherein the multi-stage preheating device comprises a first preheating device (4) and a second preheating device (5).
3. The MVR evaporation concentration system for processing emulsion according to claim 1, wherein the outlet of the feed pump (2) is connected with a water inlet filter (3), the filtering precision is 100 μm and 200 μm, and the abrasion and the pollution blockage degree of the multi-stage preheating device and the evaporator are reduced.
4. The MVR evaporative concentration system for processing an emulsion according to claim 1, characterized in that the vapor compressor (8) employs a centrifugal compressor, a roots-type compressor or a screw compressor.
5. The MVR evaporative concentration system for processing an emulsion according to claim 1, wherein the dosing system (16) comprises a dosing tank and a dosing pump;
the dosing box is provided with a stirring device;
the outlet of the medicine adding pump is connected with the water outlet pipeline of the feeding pump (2).
6. The MVR evaporative concentration system for processing emulsion according to claim 1, wherein a wire mesh demister is installed on the top end of the gas-liquid separator (7) and can filter liquid foam and separate and purify secondary steam.
7. The MVR evaporative concentration system for processing emulsion according to claim 1, wherein a stirring device is installed inside the concentrated solution cooling device (11) to reduce the temperature of the evaporated concentrated solution to below 60 ℃, thereby facilitating the storage and transportation of the concentrated solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122449407.0U CN216295220U (en) | 2021-10-12 | 2021-10-12 | MVR evaporation concentration system for processing emulsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122449407.0U CN216295220U (en) | 2021-10-12 | 2021-10-12 | MVR evaporation concentration system for processing emulsion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216295220U true CN216295220U (en) | 2022-04-15 |
Family
ID=81114212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122449407.0U Active CN216295220U (en) | 2021-10-12 | 2021-10-12 | MVR evaporation concentration system for processing emulsion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216295220U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115072918A (en) * | 2022-06-16 | 2022-09-20 | 宁波中科远东催化工程技术有限公司 | Method for extracting salt from wet desulphurization solution |
-
2021
- 2021-10-12 CN CN202122449407.0U patent/CN216295220U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115072918A (en) * | 2022-06-16 | 2022-09-20 | 宁波中科远东催化工程技术有限公司 | Method for extracting salt from wet desulphurization solution |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105000612B (en) | Mechanical vapor recompression system of concentrated organic waste water and method | |
| CN103127736A (en) | Evaporation and concentration device utilizing heat pump technique | |
| CN105036223A (en) | High-efficiency energy-saving sewage treatment method and device | |
| CN104118918A (en) | Solar-powered waste water evaporation system | |
| CN216295220U (en) | MVR evaporation concentration system for processing emulsion | |
| CN104341072A (en) | Energy-saving waste-water continuous evaporating crystallizing system | |
| CN113735209A (en) | Full-quantification landfill leachate treatment device and process | |
| CN211612212U (en) | Benzyl chloride tail gas treatment system | |
| CN215905885U (en) | Full-quantification landfill leachate treatment device | |
| CN211367028U (en) | Low boiling point grease class contains salt waste water multiple-effect evaporation processing system | |
| CN113880166A (en) | High-concentration landfill leachate treatment process and device | |
| CN210855354U (en) | Multistage evaporating system of low temperature low pressure high concentration salt waste water zero release | |
| CN212293171U (en) | High-salt high-organic-matter wastewater zero-discharge treatment system | |
| CN202072574U (en) | Ammonium nitrate waste water processing unit | |
| CN213506068U (en) | Four-effect evaporation concentration system for treating waste water containing calcium chloride | |
| CN211619981U (en) | Vinyl sulfate waste water treatment and recovery system | |
| CN204151184U (en) | A kind of energy-conservation waste water continuous evaporative crystallization system | |
| CN210321283U (en) | Coal mine drainage water utilization system and air cooling system for power plant | |
| CN113651516A (en) | Continuous drying and harmless treatment method for industrial sludge | |
| CN108328838B (en) | Fluorine-containing wastewater treatment system and treatment process thereof | |
| CN108325227B (en) | System for recycling heat in multi-effect evaporation system and treatment method thereof | |
| CN111056580A (en) | Vinyl sulfate waste water treatment and recovery system | |
| CN112142246A (en) | High-salt high-organic-matter wastewater zero-discharge treatment process | |
| CN112010489A (en) | High-salt high-organic-matter wastewater zero-discharge treatment system | |
| CN218709344U (en) | Desulfurization waste water decrement system of two-effect flash distillation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |