CN102225238A - Evaporation concentration system combining vapor compressor and high-temperature heat pump - Google Patents
Evaporation concentration system combining vapor compressor and high-temperature heat pump Download PDFInfo
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- CN102225238A CN102225238A CN2011101151039A CN201110115103A CN102225238A CN 102225238 A CN102225238 A CN 102225238A CN 2011101151039 A CN2011101151039 A CN 2011101151039A CN 201110115103 A CN201110115103 A CN 201110115103A CN 102225238 A CN102225238 A CN 102225238A
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Abstract
The invention discloses an evaporation concentration system combining a vapor compressor and a high-temperature heat pump, used for realizing the desalting or concentrated crystallization of a solution. The evaporation concentration system is structurally characterized in that an outlet of a liquid supply tank is connected to a solution side inlet of a steam generator through a first stop valve and a float ball valve; a steam outlet of the steam generator is connected to inlets of the vapor compressor and an evaporative condenser through a second stop valve; the outlet of the evaporative condenser is connected to a first coil heat exchanger and a fresh water tank; a solution outlet of the steam generator is connected to a concentrated solution tank through a third stop valve; a solution storage tank is connected to the fresh water tank through a fourth stop valve; a high-temperature water side of a heat pump set is connected with a second coil heat exchanger, a low-temperature water side of the heat pump set is respectively connected with third and fourth coil heat exchangers and a solution heat exchanger in parallel; after being compressed, pressurized and warmed up, steam enters into the evaporative condenser so as to form fresh water; and the solution in the steam generator is evaporated and concentrated into concentrated solution or crystals. The evaporation concentration system is used for recycling the heat of the concentrated solution and the condensed water in the system by utilizing the high-temperature heat pump, so as to achieve the purpose of saving energy.
Description
Technical field
The invention belongs to the heat energy utilization technology, be specifically related to a kind of vapour compression machine and combine with high temperature heat pump to obtain the evaporation and concentration combined system of products such as fresh water, concentrated solution.
Background technology
The heating power distillation need and drop into a large amount of heat energy by high temperature heat source, and distillation cost and energy consumption are all than higher.The operation principle of pressing steam distillation (MVC) technology to be used for desalinization or solution crystallization is, enter steam generator again after relying on vapour compression machine that steam pressurized is heated up, high temperature and high pressure steam discharges the solution in the latent heat heating steam generator, make it to produce steam, produce water vapour continuously, obtain fresh water after the water vapour condensation, original solution evaporation simultaneously is concentrated the formation concentrated solution.Adopt the comprehensive utilization effect of this method system thermal unsatisfactory, be mainly reflected in the waste of concentrated solution and condensed water heat in the system, adopt multistage evaporation and concentration scheme to make the investment that system is huge and high in addition.If heat pump techniques is applied to this evaporation concentration system, can reach energy-conservation effect by heat pump to realize the transfer and the recovery of heat.Based on this, the present invention combines vapour compression machine and high temperature heat pump, adds multi-stage heat exchanger, the heat of solution and condensed water is carried out step utilize with combination.As the heating thermal source of solution evaporation and concentration, utilize high temperature heat pump that concentrated solution in the system and condensed water heat are utilized simultaneously after vapour compression machine heats up the both vapor compression that produces in the solution in this combined system again, reach the recycling of system thermal, realize energy-conservation.
Summary of the invention
The objective of the invention is, the evaporation concentration system that provides a kind of vapour compression machine to combine with high temperature heat pump realizes that heat energy effectively utilizes and purpose of energy saving.
The evaporation concentration system that vapour compression machine combines with high temperature heat pump has: feed tank, stop valve, ball-cock assembly, steam generator, vapour compression machine, evaporative condenser, coil heat exchanger, fresh water jar, concentrated solution jar, source pump, solution heat exchanger, water-locator and vavuum pump etc.The connection of system unit: the outlet of feed tank is connected to the import of steam generator solution side through first stop valve, ball-cock assembly; The import of the steam (vapor) outlet of steam generator evaporative condenser in second stop valve is connected to vapour compression machine and steam generator successively, the outlet of evaporative condenser are serially connected with first coil heat exchanger and the fresh water jar in the feed tank by the road successively.The leakage fluid dram of steam generator is connected with the concentrated solution jar through the 3rd stop valve.Liquid-accumulating trough in the steam generator is connected to the fresh water jar through the 4th stop valve, and steam generator top is connected in the fresh water jar through pipeline, makes steam generator keep identical vacuum with the fresh water jar, and steam generator top the 5th stop valve is connected in vavuum pump.Second coil heat exchanger is connected in the high-temperature water side of source pump and the steam generator, the water at low temperature side of source pump respectively with feed tank in the 3rd coil heat exchanger, concentrated solution jar the 4th coil heat exchanger and solution heat exchanger be connected in parallel.The semicircle dome head is adopted on steam generator top, and liquid-accumulating trough is arranged on semicircle dome head lower end, is provided with water-locator in the space of semicircle dome head.The evaporative condenser outside is provided with electric heater unit.The steam generator top is provided with the 5th stop valve and vavuum pump, is used for exitting and vacuumizing.
The know-why that the present invention takes: system's initial launch, utilize source pump from extraneous solution, to absorb heat, the solution in the heating steam generator makes it to produce steam.The thermal source of source pump is solution or a concentrated solution in solution, the feed tank outside the system.After the quantity of steam that produces in the steam generator reaches requirement, open vapour compression machine, steam by the vapour compression machine compression boost heat after, enter the evaporative condenser in the steam generator, solution in the steam generator is heated, make it evaporation and produce water vapour, circulation in forming.In this cyclic process, if the quantity of steam that steam generator produces is not enough to the required heat of heated solution evaporation, source pump provides auxiliary supplementary heating, also is provided with electrical heating simultaneously as standby and auxiliary.Form freshwater product after the water vapour heat exchange that system produces is condensed, the solution after being concentrated forms concentrated solution or crystalline product.Feed tank links to each other by ball-cock assembly with steam generator, and solution flows into steam generator according to gravity, and the liquid level of solution is constant in the float valve control steam generator.Liquid-accumulating trough is used for collecting the condensate water of steam generator inner surface, plays the effect of vapour, liquid separation, and simultaneously, the condensate water in the liquid-accumulating trough flows into the fresh water jar through pipeline under the gravity effect.Water-locator is arranged in the steam generator, can the evaporative condenser outer surface of its inside be regularly cleaned; When system moves, can stop the drop in the steam, have the effect of vapour, liquid separation.
The beneficial effect of characteristics of the present invention and generation is:
(1) in Distallation systm, introduces high temperature heat pump, utilize high temperature heat pump, realize energy-conservation purpose concentrated solution in the system and condensed water heat recycling.
(2) adopt ball-cock assembly in the steam generator, replenish the solution amount that reduces owing to evaporation, and it is constant to keep liquid level, and evaporative condenser is soaked in the solution, reach setting value with the control solution concentration.
(3) semicircle dome head lower end, steam generator top is provided with liquid-accumulating trough, and the condensate water at steam generator top is collected.
(4) water-locator of steam generator top setting regularly cleans reaching the evaporative condenser outer surface in the steam generator, and water-locator also can stop the drop in the steam, plays the effect of vapor-liquid separation.
Description of drawings
Accompanying drawing is a system architecture schematic diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and by embodiment structure of the present invention is further described.Need to prove that present embodiment is narrative, rather than determinate.
As shown in the figure.The evaporation concentration system that vapour compression machine combines with high temperature heat pump, its structure are formed: the outlet of feed tank 1 is connected to steam generator 4 solution side imports through the first stop valve 2-1, ball-cock assembly 3; The import of the steam (vapor) outlet of steam generator 4 evaporative condenser 6 in the second stop valve 2-2 is connected to vapour compression machine 5 and steam generator 4 successively, the outlet of evaporative condenser 6 are serially connected with the first coil heat exchanger 7-1 and the fresh water jar 8 in the feed tank 1 by the road successively.The leakage fluid dram of steam generator 4 is connected with concentrated solution jar 9 through the 3rd stop valve 2-3.Liquid-accumulating trough 10 is connected to fresh water jar 8 through the 4th stop valve 2-4 in the steam generator 4, and steam generator 4 tops are connected in fresh water jar 8 through pipeline, and steam generator 4 tops the 5th stop valve 2-5 is connected in vavuum pump 11.The high-temperature water side of source pump 12 is connected with the second coil heat exchanger 7-2 in the steam generator 4, and the water at low temperature side of source pump 12 is connected in parallel with feed tank 1 interior the 3rd coil heat exchanger 7-3, concentrated solution jar 9 interior the 4th coil heat exchanger 7-4 and solution heat exchanger 13 respectively.The semicircle dome head is adopted on steam generator 4 tops, in semicircle dome head lower end liquid-accumulating trough 10 is set, and the semicircle dome head is provided with water-locator 14 in the space.Evaporative condenser 6 outsides are provided with electric heater unit 15.
Below by several links embodiment is described.
(1) irritates the control of liquid and liquid level: close the second and the 3rd stop valve, open the first and the 5th stop valve.Liquid flows into steam generator according to gravity in the feed tank, and it is constant by liquid level in the ball-cock assembly control steam generator, after feed flow finishes, opening vavuum pump vacuumizes steam generator and fresh water jar, reach setting vacuum, as closing vavuum pump and the 5th stop valve behind the 0.3859bar (75 ℃ of corresponding saturation temperatures).
(2) heating operation just: open source pump, source pump is heat-obtaining from feed tank, concentrated solution jar or extraneous solution, and the solution in the steam generator is heated, and makes it to produce steam, adds shortage of heat as source pump, enables electric heater unit.After quantity of steam reaches certain value, open second stop valve and vapour compression machine, steam is compressed supercharging heat up.
(3) system normally moves: steam is heated up by vapour compression machine compression pressurization, forms high temperature and high pressure steam and enters the interior evaporative condenser of steam generator, and the solution in the heating steam generator makes it evaporation and produces steam, and so formation circulates from body.In this process, if the quantity of steam that steam generator produces is not enough to the required heat of heated solution evaporation, source pump provides auxiliary supplementary heating, or replenishes by electrical heating.Form condensate water after the steam condensation heat release, enter interior first coil heat exchanger of feed tank original solution is heated, flow into the fresh water jar at last.The steam that produces in the steam generator, the condensate water that produces during by steam generator top sphere flows into liquid-accumulating trough, opens the 4th stop valve, and condensate water flows into the fresh water jar according to the gravity effect through pipeline.
(4) end of run: when the solution concentration in the steam generator reached setting value, the steam off compressor cut out first and second stop valves, opens the 3rd and the 5th stop valve, and concentrated solution flows under the influence of gravity into the concentrated solution jar.So far finish an evaporation and concentration cyclic process.
Claims (3)
1. the evaporation concentration system that combines with high temperature heat pump of vapour compression machine, have feed tank, stop valve, ball-cock assembly, steam generator, vapour compression machine, evaporative condenser, coil heat exchanger, fresh water jar, concentrated solution jar, source pump, solution heat exchanger, water-locator and vavuum pump, it is characterized in that the outlet of feed tank (1) is connected to steam generator (4) solution side import through first stop valve (2-1), ball-cock assembly (3); The import of the steam (vapor) outlet of steam generator (4) evaporative condenser (6) in second stop valve (2-2) is connected to vapour compression machine (5) and steam generator (4) successively, the outlet of evaporative condenser (6) is serially connected with first coil heat exchanger (7-1) and the fresh water jar (8) in the feed tank (1) by the road successively, the leakage fluid dram of steam generator (4) is connected with concentrated solution jar (9) through the 3rd stop valve (2-3), the interior liquid-accumulating trough of steam generator (4) (10) is connected to fresh water jar (8) through the 4th stop valve (2-4), steam generator (4) top is connected in fresh water jar (8) through pipeline, steam generator (4) top the 5th stop valve (2-5) is connected in vavuum pump (11), second coil heat exchanger (7-2) is connected in the high-temperature water side of source pump (12) and the steam generator (4), the water at low temperature side of source pump (11) respectively with interior the 3rd coil heat exchanger (7-3) of feed tank (1), the 4th coil heat exchanger (7-4) in the concentrated solution jar (9), and solution heat exchanger (13) is connected in parallel.
2. the evaporation concentration system that combines with high temperature heat pump according to the described vapour compression machine of claim 1, it is characterized in that described steam generator (4) top employing semicircle dome head, described liquid-accumulating trough (10) is arranged on semicircle dome head lower end, in semicircle dome head space, be provided with water-locator (14), be provided with electric heater unit (15) in described evaporative condenser (6) outside.
3. the evaporation concentration system that combines with high temperature heat pump according to claim 1 or 2 described vapour compression machines is characterized in that described steam generator (4) top is provided with vavuum pump (11) and connects through the 5th stop valve (2-5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101151039A CN102225238A (en) | 2011-05-05 | 2011-05-05 | Evaporation concentration system combining vapor compressor and high-temperature heat pump |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101151039A CN102225238A (en) | 2011-05-05 | 2011-05-05 | Evaporation concentration system combining vapor compressor and high-temperature heat pump |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553274A (en) * | 2012-03-11 | 2012-07-11 | 甘肃蓝科石化高新装备股份有限公司 | Tubular evaporator device with mechanical steam compressor |
| CN102861447A (en) * | 2012-10-12 | 2013-01-09 | 天津商业大学 | Vacuum concentration device |
| CN103127736A (en) * | 2013-03-26 | 2013-06-05 | 东华大学 | Evaporation and concentration device utilizing heat pump technique |
| CN104645650A (en) * | 2015-03-03 | 2015-05-27 | 苏州天荣能源环境科技有限公司 | Heat pump distillation device and starting method thereof |
| CN105435476A (en) * | 2015-12-02 | 2016-03-30 | 中国科学院理化技术研究所 | Low-temperature evaporation and concentration system |
| CN104154617B (en) * | 2014-08-19 | 2016-10-19 | 贺明 | Non-outdoor unit domestic air conditioner and the application on refrigerator thereof |
| CN106823419A (en) * | 2017-01-18 | 2017-06-13 | 合山锌业科技有限公司 | Interior heating crystalline evaporator |
| CN109133233A (en) * | 2018-09-29 | 2019-01-04 | 无锡朗盼环境科技有限公司 | A kind of low-temperature evaporation waste water treatment system of energy conservation and environmental protection reliable adjustment |
| CN109939454A (en) * | 2019-04-29 | 2019-06-28 | 邢淑辉 | A kind of heat pump vacuum concentration system |
| CN110681177A (en) * | 2019-09-24 | 2020-01-14 | 无锡朗盼环境科技有限公司 | Heat pump type low-temperature crystallizer |
| CN111870975A (en) * | 2020-06-11 | 2020-11-03 | 岳玉亮 | Solution concentration device for heat source tower system |
| GB2622183A (en) * | 2022-05-04 | 2024-03-13 | Coopertec Systems Ltd | Evaporative condenser operating as either water heater or condenser |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2531418A1 (en) * | 1982-08-06 | 1984-02-10 | Sasakura Eng Co Ltd | Desalination plant |
| CN86203155U (en) * | 1986-05-10 | 1987-05-27 | 大连工学院 | Hot jet pump water distillater |
| CN101518692A (en) * | 2008-03-02 | 2009-09-02 | 凌建军 | High-efficiency energy-saving liquid distiller |
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2011
- 2011-05-05 CN CN2011101151039A patent/CN102225238A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2531418A1 (en) * | 1982-08-06 | 1984-02-10 | Sasakura Eng Co Ltd | Desalination plant |
| CN86203155U (en) * | 1986-05-10 | 1987-05-27 | 大连工学院 | Hot jet pump water distillater |
| CN101518692A (en) * | 2008-03-02 | 2009-09-02 | 凌建军 | High-efficiency energy-saving liquid distiller |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553274A (en) * | 2012-03-11 | 2012-07-11 | 甘肃蓝科石化高新装备股份有限公司 | Tubular evaporator device with mechanical steam compressor |
| CN102861447A (en) * | 2012-10-12 | 2013-01-09 | 天津商业大学 | Vacuum concentration device |
| CN103127736A (en) * | 2013-03-26 | 2013-06-05 | 东华大学 | Evaporation and concentration device utilizing heat pump technique |
| CN104154617B (en) * | 2014-08-19 | 2016-10-19 | 贺明 | Non-outdoor unit domestic air conditioner and the application on refrigerator thereof |
| CN104645650A (en) * | 2015-03-03 | 2015-05-27 | 苏州天荣能源环境科技有限公司 | Heat pump distillation device and starting method thereof |
| CN105435476A (en) * | 2015-12-02 | 2016-03-30 | 中国科学院理化技术研究所 | Low-temperature evaporation and concentration system |
| CN106823419A (en) * | 2017-01-18 | 2017-06-13 | 合山锌业科技有限公司 | Interior heating crystalline evaporator |
| CN109133233A (en) * | 2018-09-29 | 2019-01-04 | 无锡朗盼环境科技有限公司 | A kind of low-temperature evaporation waste water treatment system of energy conservation and environmental protection reliable adjustment |
| CN109939454A (en) * | 2019-04-29 | 2019-06-28 | 邢淑辉 | A kind of heat pump vacuum concentration system |
| CN110681177A (en) * | 2019-09-24 | 2020-01-14 | 无锡朗盼环境科技有限公司 | Heat pump type low-temperature crystallizer |
| CN111870975A (en) * | 2020-06-11 | 2020-11-03 | 岳玉亮 | Solution concentration device for heat source tower system |
| GB2622183A (en) * | 2022-05-04 | 2024-03-13 | Coopertec Systems Ltd | Evaporative condenser operating as either water heater or condenser |
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Application publication date: 20111026 |