CN105174330A - Apparatus for preparing distilled water based on heat pump driving and negative pressure and low temperature boiling, and method thereof - Google Patents
Apparatus for preparing distilled water based on heat pump driving and negative pressure and low temperature boiling, and method thereof Download PDFInfo
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- CN105174330A CN105174330A CN201410262295.XA CN201410262295A CN105174330A CN 105174330 A CN105174330 A CN 105174330A CN 201410262295 A CN201410262295 A CN 201410262295A CN 105174330 A CN105174330 A CN 105174330A
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- water
- heat pump
- negative pressure
- distilled water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention provides a high-efficiency and energy-saving distilled water preparation apparatus combining a heat pump technology with a negative pressure and low temperature boiling technology. The condenser of a heat pump is adopted by the apparatus as a driving heat source to provide heat for water in a generation tank, water under a negative pressure condition undergoes low temperature boiling, most of generated water steam is cooled and coagulated by the evaporator of the heat pump, and residual small amount of the water steam is cooled and coagulated by air in order to prepare distilled water. A vacuum pump intermittently works to generate negative pressure environment required by running starting of the apparatus. Compared with normal pressure distillation apparatuses, the apparatus needs no high-grade high temperature heat sources. The apparatus combines the heat pump technology, and fully utilizes the characteristics of outward heat release of a refrigerant in the condenser in a relatively high temperature state and exterior heat absorption of the refrigerant in an evaporator in a relatively low temperature state, so compared with general negative pressure distillation apparatuses, the apparatus has the advantages of high energy efficiency ratio and great reduction of the running cost for preparing distilled water.
Description
Technical field
The present invention relates to a kind of distilled water preparation facilities, be specifically related to a kind of at the distilled water low-temperature growth device of condition of negative pressure using the condenser of heat pump as steam generation thermal source, meanwhile, the vaporizer of heat pump provides main cold for steam coagulation.
Background technology
The preparation process of distilled water mainly comprises water boiling and steam coagulation two steps.Usually this process is carried out all at ambient pressure, and corresponding water saturation temperature is 100 DEG C, therefore needs high-grade thermal source.And under condition of negative pressure, water can seethe with excitement at a lower temperature, the low-grade heat source than being easier to obtain thus can be adopted, as useless/waste heat, sun power etc.But under condition of negative pressure, the condensation of water vapour also needs just can complete under corresponding lower temperature, and this just proposes high requirement to low-temperature receiver.
Summary of the invention
In the present invention, the present inventor, on the basis of its granted patent 201010034147.4, proposes the distilled water low-temperature growth device in conjunction with heat pump techniques, wherein, utilizes vacuum pump to set up subnormal ambient, still-process can be carried out at a lower temperature.Consider that heat pump has the heating efficiency of more than 4 usually, namely the compressor work of 1W is inputted, the at least heating capacity of 4W and the refrigerating duty of 3W can be obtained, the present inventor by low-temperature distillation together with heat pump techniques reasonable combination, utilize the condenser of heat pump as steam generation thermal source with provide water seethe with excitement needed for add heat, meanwhile, the vaporizer of heat pump is then place's low-temperature receiver at lower temperatures, for the condensation of water vapour provides cold.Because in heat pump, the thermal discharge of condenser is greater than the caloric receptivity of vaporizer, system needs extra cold that water vapour just can be made to condense completely, therefore an air cooled condenser in parallel in water system, and carry out heat exchange between external environment, to process this part remaining heat of condensation.A whole process cycle consumes vacuum pump merit, a small amount of continuous print compressor work, and Energy Efficiency Ratio is high, and energy-saving effect is remarkable.
The object of the present invention is to provide a kind of distilled water low-temperature growth device in conjunction with heat pump techniques and negative pressure low-temperature boiling technology, utilize the condenser of heat pump and vaporizer respectively as water vapour generation thermal source and condensation low-temperature receiver, realize under condition of negative pressure with low grade heat energy and comparatively less energy-consumption prepare distilled water.
Object of the present invention is achieved through the following technical solutions.Distilled water low-temperature growth device in conjunction with heat pump techniques and negative pressure low-temperature boiling technology comprises: heat pump, and it comprises compressor, condenser, heating power expansion valve, vaporizer; Water system, it comprises generation tank, vaporizer, solidifying water pot, vacuum pump, extraction valve, feed valve, clout valve, distilled water collection valve, air cooled condenser; Refrigeration agent is compressed in described heat pump, condensation, throttling, evaporation Four processes complete a steam compression type refrigeration circulation, and therebetween, refrigeration agent is heat release within the condenser, absorbs heat in vaporizer; Negative pressure water in generation tank is condensed, and device heating is rear seethes with excitement, and produces water vapour, then cools condensation by vaporizer and air cooled condenser, thus obtain distilled water.
According to one embodiment of present invention, described heat pump comprises: compressor, condenser, heating power expansion valve, vaporizer, four major partss form closed loop, refrigerant vapour is boosted by compressor compresses intensification, enter condenser condenses to become liquid (or gas-liquid two-phase), outwards release heat simultaneously, by heating power expansion valve throttling lower the temperature subsequently by step-down for refrigeration agent, enter vaporizer, absorb outside heat and flash to gaseous state, get back to compressor, complete a steam compression type refrigeration circulation.
Wherein, described condenser is fin-tube type structure, and vaporizer is plank frame.
According to one embodiment of present invention, described water system comprises: generation tank, vaporizer, solidifying water pot, vacuum pump, extraction valve, feed valve, clout valve, distilled water collect valve, and vacuum pump provides subnormal ambient for system, opens extraction valve when bleeding; Raw water is inhaled into generation tank from feed valve; All valve closess in still-process; Negative pressure water in generation tank be condensed device be heated to boiling, the water vapour side that the water vapour major part produced enters vaporizer is cooled, condense into liquid water, another part water vapour coagulates water pot and enters air cooled condenser, liquid water is condensed into function of environment heat emission, complete the condensation completely of water vapour thus, the distilled water obtained temporarily is stored in solidifying water pot; After still-process completes, open distilled water and collect valve, take out the distilled water produced, open clout valve, release clout water, prevent the internal stiffening water of tank and gather and fouling.
Wherein, described air cooled condenser is fin-tube type structure.
According to one embodiment of present invention, described still-process is discontinuous operation pattern, after a workflow completes, needs again to bleed, charging.
According to one embodiment of present invention, carry out thermal exchange by condenser and vaporizer between described heat pump and water system, condenser is embedded in generation tank, reserves interface and is connected with heat pump miscellaneous part.
According to an aspect of the present invention, provide a kind of distilled water low-temperature growth device in conjunction with heat pump techniques and negative pressure low-temperature boiling technology, it is characterized in that comprising:
Heat pump,
Water system,
Thermal exchange is carried out by condenser and vaporizer between wherein said heat pump and water system.
According to a further aspect of the present invention, the feature of above-mentioned distilled water low-temperature growth device is:
Described heat pump comprises:
Compressor, for compressed gaseous refrigeration agent,
Condenser, the gaseous refrigerant heated up for compressing rear boosting carries out condensation,
Heating power expansion valve, for carrying out throttling to condensed refrigeration agent,
Vaporizer,
Described water system comprises:
Described vaporizer,
Vacuum pump, for vacuumizing generation tank, forms negative pressure,
Generation tank, for holding raw water, and make raw water carry out heat exchange with the refrigeration agent flowing through described condenser, make raw water flash distillation under negative pressure, generate water vapour, the water vapour of generation is conveyed to and carries out heat exchange and heat release with vaporizer, forms water of condensation,
Solidifying water pot, for collecting and storing water of condensation.
Accompanying drawing explanation
Fig. 1 is the principle schematic of a specific embodiment of the present invention.
Embodiment
Technical scheme of the present invention is illustrated below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a specific embodiment according to the present invention comprises: heat pump A, water system B.In the embodiment shown in fig. 1, carry out thermal exchange between heat pump A and water system B by condenser 2 and vaporizer 4, during work, two systems are all in closed environment.
As shown in Figure 1, according to a specific embodiment of the present invention, heat pump A comprises compressor 1, the condenser 2 be embedded in generation tank 5, heating power expansion valve 3, vaporizer 4.
As shown in Figure 1, according to a specific embodiment of the present invention, water system B comprise vaporizer 4, generation tank 5, solidifying water pot 6, vacuum pump 7, be arranged on the top of generation tank 5 extraction valve 8, be arranged on feed valve 9 in the middle part of generation tank 5, be arranged on the clout valve 10 bottom generation tank 5, the distilled water be arranged on bottom solidifying water pot 6 collects valve 11, air cooled condenser 12.
Before distillation work starts, extraction valve 8 is opened, and water system B is evacuated to negative pressure state by vacuum pump 7, closes extraction valve 8.Open feed valve 9, raw water is sucked generation tank 5, raw water flash distillation under the low pressure environment of generation tank 5, water vapour is full of water system B gradually.When raw water in generation tank 5 seethes with excitement no longer at normal temperatures, feeding work completes, and now starts compressor 1, and gaseous refrigerant boosts intensifications after compression, enters condenser 2 condensation, and then through heating power expansion valve 3 throttling, pressure reduces, temperature decline.Meanwhile, there is low-temperature boiling in the heat of condensation that the water absorptive condenser 2 in generation tank 5 discharges under condition of negative pressure, and the water vapour major part of generation enters the water vapour side of vaporizer 4, and remainder enters the water vapour side of air cooled condenser 12.Low-temperature refrigerant in vaporizer 4 after water vapour and throttling carries out heat exchange, and condense into liquid water, refrigeration agent then flashes to gaseous state and gets back to compressor, completes a steam compression type refrigeration circulation.In heat pump A, the thermal discharge of condenser 2 is greater than the caloric receptivity of vaporizer 4, therefore, water vapour condenses completely in the water vapour side of vaporizer 4 and coagulates water pot, remain a small amount of water vapour and carry out heat exchange with external environment in air cooled condenser 12, condense into liquid water, flow into solidifying water pot 6.
What the distilled water low-temperature growth device in conjunction with heat pump techniques and negative pressure low-temperature boiling technology adopted is intermittent operation mode, and after still-process carries out for some time, the raw water in generation tank 5 reduces gradually, and hardness increases gradually.And water system B condition of negative pressure may be deteriorated to some extent.Now, close down compressor 1, device quits work, and opens clout valve 10, releases clout water, opens distilled water and collects valve 11, take out distilled water.Again bleed, charging, start new workflow.
Distilled water preparation facilities of the present invention and method, have efficient, energy-conservation remarkable advantage.Compared with embrane method, obtained water quality is high, water rate high (waste water is little), and without the need to regularly replacing mould material, use cost is low.Seethe with excitement compared with distillation method with conventional atmospheric, power savings clearly, and without scale problems.This device, while producing distilled water, as required, can control the temperature of made distilled water flexibly and does not significantly increase energy consumption in room temperature range.The present invention may be used for the various fields such as the preparation directly drunk pure water by the purification of heavy metal-containing polluted water, barreled or pipeline.
Below be only embody rule example of the present invention, protection scope of the present invention is not constituted any limitation.The technical scheme that all employing equivalents or equivalence are replaced and formed, all drops within rights protection scope of the present invention.
Claims (8)
1., in conjunction with a distilled water low-temperature growth device for heat pump techniques and negative pressure low-temperature boiling technology, it is characterized in that comprising:
Heat pump (A),
Water system (B),
Thermal exchange is carried out by condenser (2) and vaporizer (4) between wherein said heat pump (A) and water system (B).
2. distilled water low-temperature growth device according to claim 1, is characterized in that:
Described heat pump (A) comprising:
Compressor (1), for compressed gaseous refrigeration agent,
Condenser (2), the gaseous refrigerant heated up for compressing rear boosting carries out condensation,
Heating power expansion valve (3), for carrying out throttling to condensed refrigeration agent,
Vaporizer (4),
Described water system (B) comprising:
Described vaporizer (4),
Vacuum pump (7), for vacuumizing generation tank (5), forms negative pressure,
Generation tank (5), for holding raw water, and make raw water carry out heat exchange with the refrigeration agent flowing through described condenser (2), make raw water flash distillation under negative pressure, generate water vapour, the water vapour generated is conveyed to and carries out heat exchange and heat release with vaporizer (4), forms water of condensation
Solidifying water pot (6), for collecting and storing water of condensation.
3. distilled water low-temperature growth device according to claim 2, is characterized in that comprising further:
Extraction valve (8), vacuum pump (7) provides extraction valve (8) to vacuumize generation tank (5),
Feed valve (9), raw water is inhaled into generation tank (5) by feed valve (9),
Clout valve (10), for releasing the clout water in generation tank (5),
Distilled water collects valve (11), for taking out the distilled water stored in solidifying water pot (6),
Air cooled condenser (12), the part not entering vaporizer (4) in the water vapour generated in generation tank (5) enters the water vapour side of air cooled condenser (12), heat exchange is carried out with external environment, condense into liquid water, flow into solidifying water pot (6).
4. the distilled water low-temperature growth device in conjunction with heat pump techniques and negative pressure low-temperature boiling technology according to claim 2, it is characterized in that, compressor (1), condenser (2), heating power expansion valve (3), vaporizer (4) connect into closed loop by metal tube, refrigeration agent flows through each parts successively, successively through processes such as overdraft, condensation, throttling, evaporations, complete a steam compression type refrigeration circulation.
5. the distilled water low-temperature growth device in conjunction with heat pump techniques and negative pressure low-temperature boiling technology according to claim 2, it is characterized in that, the condenser (2) of heat pump is embedded in generation tank (5) inside, be immersed in water, reserve interface in generation tank (5) outside and be connected with heat pump (A); Condenser (2) is fin-tube type structure, and refrigeration agent is at Bottomhole pressure.
6. the distilled water low-temperature growth device in conjunction with heat pump techniques and negative pressure low-temperature boiling technology according to claim 2, it is characterized in that, the vaporizer (4) of heat pump is plank frame, be divided into refrigerant side and water vapour side, refrigerant side is connected to heat pump (A), and water vapour side is connected to water system (B).
7. the distilled water low-temperature growth device in conjunction with heat pump techniques and negative pressure low-temperature boiling technology according to claim 2, it is characterized in that, generation tank (5), vaporizer (4), air cooled condenser (12), solidifying water pot (6) connect into closed system by pipeline, and wherein vaporizer (4) is in parallel with air cooled condenser (12); Vacuum pump (7) is connected to generation tank (5) top via extraction valve (8), for water system (B) provides subnormal ambient; Feed valve (9) is arranged on generation tank (5) middle part; Clout valve (10) is arranged on generation tank (5) bottom; Distilled water is collected valve (11) and is arranged on solidifying water pot (6) bottom; Air cooled condenser (12) is arranged between generation tank and solidifying water pot (6), in parallel with vaporizer (4).
8. the distilled water low-temperature growth device in conjunction with heat pump techniques and negative pressure low-temperature boiling technology according to claim 2, it is characterized in that, air cooled condenser (12) is fin-tube type structure, be divided into water vapour side and air side, water vapour side is connected to water system (B), and air side is connected to environment.
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| CN201410262295.XA CN105174330B (en) | 2014-06-12 | 2014-06-12 | The apparatus and method for preparing distilled water with negative pressure low-temperature boiling are driven based on heat pump |
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| CN201410262295.XA CN105174330B (en) | 2014-06-12 | 2014-06-12 | The apparatus and method for preparing distilled water with negative pressure low-temperature boiling are driven based on heat pump |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106215446A (en) * | 2016-09-01 | 2016-12-14 | 复盛股份有限公司 | Multi-heat-source vacuum distillation device and control method thereof |
| CN108203129A (en) * | 2016-12-16 | 2018-06-26 | 北京航空航天大学 | Heat pump driven injection type negative pressure desalination plant and method |
| CN109269146A (en) * | 2018-07-18 | 2019-01-25 | 广西大学 | It is a kind of to use the vacuum refrigeration system for exerting gloomy pump |
| TWI672272B (en) * | 2018-07-16 | 2019-09-21 | 復盛股份有限公司 | Waste liquid treatment system and method of treating waste liquid using the same |
| CN110282675A (en) * | 2019-07-17 | 2019-09-27 | 昆山昆德利机械设备有限公司 | A kind of low temperature distillation waste liquor treatment equipment and its workflow |
| CN110754940A (en) * | 2019-10-30 | 2020-02-07 | 灵源药业有限公司 | Traditional chinese medicine tea production that steps down is with stewing equipment |
| CN111252835A (en) * | 2020-01-16 | 2020-06-09 | 深圳瑞赛环保科技有限公司 | Waste liquid evaporation treatment method and heating and refrigerating method in waste liquid evaporation process |
| CN111595064A (en) * | 2020-06-17 | 2020-08-28 | 哈尔滨工大金涛科技股份有限公司 | Sewage and waste water source vapor compression flooded heat pump unit |
| CN111620395A (en) * | 2020-04-14 | 2020-09-04 | 上海问鼎环保科技有限公司 | High-concentration waste liquid evaporator and waste liquid treatment method thereof |
| CN111777252A (en) * | 2020-07-10 | 2020-10-16 | 陕西理工大学 | Anti-blocking seawater desalination device based on graphene filtering |
| CN111801537A (en) * | 2018-03-07 | 2020-10-20 | 依诺森公司 | Adsorption heat pump |
| CN113028635A (en) * | 2021-04-07 | 2021-06-25 | 威海广泰空港设备股份有限公司 | Air conditioner condensate water recovery and elimination device, elimination method and condensate water-free air conditioning system |
| CN113149107A (en) * | 2021-04-26 | 2021-07-23 | 程刚 | Small air-cooled distilled water preparing device |
| CN111595064B (en) * | 2020-06-17 | 2024-06-04 | 哈尔滨工大金涛科技股份有限公司 | Vapor compression flooded heat pump unit for sewage and wastewater source |
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Cited By (18)
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| CN106215446A (en) * | 2016-09-01 | 2016-12-14 | 复盛股份有限公司 | Multi-heat-source vacuum distillation device and control method thereof |
| CN108203129A (en) * | 2016-12-16 | 2018-06-26 | 北京航空航天大学 | Heat pump driven injection type negative pressure desalination plant and method |
| CN108203129B (en) * | 2016-12-16 | 2021-06-22 | 北京航空航天大学 | Injection type negative pressure seawater desalination device driven by heat pump and method |
| US11619426B2 (en) | 2018-03-07 | 2023-04-04 | Enersion Inc. | Adsorption-based heat pump |
| CN115183501A (en) * | 2018-03-07 | 2022-10-14 | 依诺森公司 | Adsorption heat pump |
| CN111801537A (en) * | 2018-03-07 | 2020-10-20 | 依诺森公司 | Adsorption heat pump |
| TWI672272B (en) * | 2018-07-16 | 2019-09-21 | 復盛股份有限公司 | Waste liquid treatment system and method of treating waste liquid using the same |
| CN109269146A (en) * | 2018-07-18 | 2019-01-25 | 广西大学 | It is a kind of to use the vacuum refrigeration system for exerting gloomy pump |
| CN110282675A (en) * | 2019-07-17 | 2019-09-27 | 昆山昆德利机械设备有限公司 | A kind of low temperature distillation waste liquor treatment equipment and its workflow |
| CN110754940B (en) * | 2019-10-30 | 2021-07-27 | 灵源药业有限公司 | Traditional chinese medicine tea production that steps down is with stewing equipment |
| CN110754940A (en) * | 2019-10-30 | 2020-02-07 | 灵源药业有限公司 | Traditional chinese medicine tea production that steps down is with stewing equipment |
| CN111252835A (en) * | 2020-01-16 | 2020-06-09 | 深圳瑞赛环保科技有限公司 | Waste liquid evaporation treatment method and heating and refrigerating method in waste liquid evaporation process |
| CN111620395A (en) * | 2020-04-14 | 2020-09-04 | 上海问鼎环保科技有限公司 | High-concentration waste liquid evaporator and waste liquid treatment method thereof |
| CN111595064A (en) * | 2020-06-17 | 2020-08-28 | 哈尔滨工大金涛科技股份有限公司 | Sewage and waste water source vapor compression flooded heat pump unit |
| CN111595064B (en) * | 2020-06-17 | 2024-06-04 | 哈尔滨工大金涛科技股份有限公司 | Vapor compression flooded heat pump unit for sewage and wastewater source |
| CN111777252A (en) * | 2020-07-10 | 2020-10-16 | 陕西理工大学 | Anti-blocking seawater desalination device based on graphene filtering |
| CN113028635A (en) * | 2021-04-07 | 2021-06-25 | 威海广泰空港设备股份有限公司 | Air conditioner condensate water recovery and elimination device, elimination method and condensate water-free air conditioning system |
| CN113149107A (en) * | 2021-04-26 | 2021-07-23 | 程刚 | Small air-cooled distilled water preparing device |
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