CN108128831A - Solar heat pump desalination plant - Google Patents

Solar heat pump desalination plant Download PDF

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Publication number
CN108128831A
CN108128831A CN201810040296.8A CN201810040296A CN108128831A CN 108128831 A CN108128831 A CN 108128831A CN 201810040296 A CN201810040296 A CN 201810040296A CN 108128831 A CN108128831 A CN 108128831A
Authority
CN
China
Prior art keywords
pipeline
heat pump
fresh
pump
vacuum
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.)
Pending
Application number
CN201810040296.8A
Other languages
Chinese (zh)
Inventor
李秀辰
孙彩玲
母刚
张国琛
张倩
潘仁宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dalian Ocean University
Original Assignee
Dalian Ocean University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dalian Ocean University filed Critical Dalian Ocean University
Priority to CN201810040296.8A priority Critical patent/CN108128831A/en
Publication of CN108128831A publication Critical patent/CN108128831A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/14Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/043Details
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08Seawater, e.g. for desalination
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124Water desalination
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124Water desalination
    • Y02A20/138Water desalination using renewable energy
    • Y02A20/142Solar thermal; Photovoltaics
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20Controlling water pollution; Waste water treatment
    • Y02A20/208Off-grid powered water treatment
    • Y02A20/212Solar-powered wastewater sewage treatment, e.g. spray evaporation

Abstract

The present invention discloses a kind of solar heat pump desalination plant, including fresh seawater pond, it is characterised in that:Fresh seawater pond is connected by the first pipeline with solar still, flowmeter and control valve are provided on the first pipeline, simultaneously heat exchanger is additionally provided on the first pipeline, solar still is equipped with transparent upper cover, the top of solar still is connected by the second pipeline with fresh-water pool, and the lower part of solar still is then connected by third pipeline with vacuum flashing room, the condenser of water pump and heat pump system is provided on third pipeline, the vacuum flashing room is connected by steam pipework with fresh-water pool, vacuum meter and vacuum pump are provided on steam pipework, the evaporator of heat pump system is additionally provided on steam pipework simultaneously, vacuum flashing room is also connected by carrying the 4th pipeline of water pump with strong brine pond, and the heat exchanger is also disposed on the 4th pipeline.

Description

Solar heat pump desalination plant
Technical field
The present invention relates to field of seawater desalination, particularly a kind of solar heat pump desalination plant.
Background technology
Sea water desalination is to solve the problems, such as the important channel of shortage of water resources, and research and the application of desalination technology are always The key task of ocean engineering field.Currently used method for desalting seawater includes the way of distillation and membrane technology etc..In recent years, with more Grade flash distillation and multi-effect flashing steam have obtained wide application for the distillation sea water desalting technology of Main Patterns, but energy consumption it is big, The problem of desalinating cost is high constrains the scale application of the above method.In addition, reverse osmosis and electrodialysis Membrane seawater desalination skill The research of art obtains greater advance, however, there are still energy consumption is big, film processing use cost is high and desalinating process due to this method The outstanding problems such as complexity have seriously affected the scale application of Membrane seawater desalination technology.Therefore, carry out new energy sea water desalination To pushing desalination technology large-scale production, it is big, of high cost particularly to solve sea water desalination energy consumption for the research and application of technology The problems such as, it is of great significance.
Invention content
The present invention is to solve the above-mentioned deficiency present in the prior art, and it is light to propose that one kind can be achieved at the same time seawater The functions such as change, strong brine and water vapour waste heat recovery, and with the solar energy of the clear superiorities such as efficient, energy saving and utilization of new energy resources Heat pump sea water desalting apparatus.
The present invention technical solution be:A kind of solar heat pump desalination plant, including fresh seawater pond 1, It is characterized in that:Fresh seawater pond 1 is connected by the first pipeline with solar still 2, and flow is provided on the first pipeline Meter 3 and control valve 4, while heat exchanger 5 is additionally provided on the first pipeline, solar still 2 is equipped with transparent upper cover, solar energy The top of distiller 2 is connected by the second pipeline with fresh-water pool 6, and the lower part of solar still 2 then by third pipeline with Vacuum flashing room 7 connects, and the condenser 9 of water pump 8 and heat pump system is provided on third pipeline 3, and the vacuum flashing room 7 is logical It crosses steam pipework 10 to connect with fresh-water pool 6, vacuum meter 11 and vacuum pump 12 is provided on steam pipework 10, while in steam pipe The evaporator 13 of heat pump system, fourth pipeline and strong brine of the vacuum flashing room 7 also by carrying water pump 8 are additionally provided on road 10 Pond 14 connects, and the heat exchanger 5 is also disposed on the 4th pipeline,
The desalting plant further includes heat pump system, and the heat pump system includes the condenser 9 and evaporator 13, and Condenser 9 and evaporator 13 are interconnected by circuit, and pressure gauge, high pressure fluid reservoir are provided on circuit between 15th, device for drying and filtering 16, solenoid valve 17,18 gas-liquid separator 19 of expansion valve and compressor 20.
The present invention compared with the existing technology, has the following advantages that:
The solar heat pump desalination plant of this kind of structure type, using the waste heat of solar energy, heat pump and strong brine to fresh Seawater is heated up and is preheated, and the heat source that the vapor generated using desalination makees heat pump provides heat for heat pump fluid evaporation, no The problem of carrying out seawater heating by conventional energy resource merely is only overcome, and realizes recycling and the vapor of waste heat Rapid condensation.In addition, the multistage desalinating process being combined using solar distilling and vacuum flashing, the effect of sea water desalination is improved Rate and the newly utilization rate of energy.The equipment has the comprehensive function of sea water desalination, utilization of new energy resources and waste heat recovery.The apparatus and process It is advanced, simple in structure, energy-efficient, easy to maintain.Suitable for the coals electric resources such as island, ship and land place in short supply It promotes and applies.
Description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention.
Specific embodiment
Below in conjunction with the specific embodiment of the description of the drawings present invention.As shown in Figure 1:A kind of solar heat pump seawater is light Makeup is put, and including fresh seawater pond 1, this fresh seawater pond 1 is connected by the first pipeline with solar still 2, Flowmeter 3 and control valve 4 are provided on one pipeline, while heat exchanger 5 is additionally provided on the first pipeline, above-mentioned solar distilling Device 2 is equipped with transparent upper cover, and the top of solar still 2 is connected by the second pipeline with fresh-water pool 6, and solar still 2 Lower part then connected by third pipeline with vacuum flashing room 7, the cold of water pump 8 and heat pump system is provided on third pipeline 3 Condenser 9, the vacuum flashing room 7 are connected by steam pipework 10 with fresh-water pool 6, and vacuum meter 11 is provided on steam pipework 10 With vacuum pump 12, while the evaporator 13 of heat pump system is additionally provided on steam pipework 10, vacuum flashing room 7 is also by carrying 4th pipeline of water pump 8 is connected with strong brine pond 14, and the heat exchanger 5 is also disposed on the 4th pipeline,
This desalting plant further includes heat pump system, and heat pump system then includes above-mentioned condenser 9 and evaporator 13, and condenser 9 It is interconnected with evaporator 13 by circuit, pressure gauge, high pressure fluid reservoir 15, dried is provided on circuit between Filter 16, solenoid valve 17,18 gas-liquid separator 19 of expansion valve and compressor 20.
The course of work of the solar heat pump desalination plant of the embodiment of the present invention is as follows:It will be fresh by the first pipeline Fresh seawater in seawater pond 1 is transported in solar still 2(Can water pump be set on the first pipeline), this part seawater meeting Heat is absorbed in heat exchanger 5, realizes preheating;Since the top of solar still 2 is provided with transparent upper cover, in the sun Temperature in energy distiller 2 can be relatively high, can evaporate, steams in it into the fresh seawater of solar still 2 after preheating The water vapour generated after hair can be automatically into the second pipeline, and liquid is condensed into the second pipeline, and this operative liquid Fresh water is eventually entered in fresh-water pool 6;And remaining seawater can then pass through under the action of water pump 9 in solar still 2 Third pipeline is entered in vacuum flashing room 7, and before vacuum flashing room 7 is entered, this part seawater can also be in condenser 9 Further to absorb heat, under the action of vacuum flashing room 7, seawater becomes vapor, starts vacuum pump 12, allow water vapour into Enter steam pipework 10, water vapour is condensed into liquid under the action of evaporator 13, and is finally imported into fresh-water pool 6;And vacuum Remaining liquid seawater is then the higher strong brine of salinity, this part strong brine in flash steam 7(It is loaded with heat)In the work of water pump 9 Entered in strong brine pond 14 by the 4th pipeline with lower, and during strong brine flows, the heat carried can also change It is transferred in hot device 5 in the fresh seawater in first pipeline, it is preheated;
At work, 20 compressed air of compressor obtains the gas medium of high temperature and pressure, this part to heat pump system in the present apparatus Gas medium enters in condenser 9, and the heat transfer in gas medium is this part seawater into one to the seawater in third pipeline Step heating, in condenser 9, gas medium is condensed into liquid medium, and passes sequentially through high pressure fluid reservoir 15, device for drying and filtering 16th, enter in evaporator 13 after solenoid valve 17 and expansion valve 18, and be loaded with heat water vapour can in evaporator 13 with liquid Medium heat exchange, liquid medium heat absorption becomes gaseous medium again, and liquid fresh water is formed after water vapour exothermic condensation, finally into Enter in fresh-water pool 6;And revert to gaseous medium again then can be by participating in heat pump system again after gas-liquid separator 19 In cycle.

Claims (1)

1. a kind of solar heat pump desalination plant, including fresh seawater pond(1), it is characterised in that:Fresh seawater pond(1)It is logical Cross the first pipeline and solar still(2)It is connected, flowmeter is provided on the first pipeline(3)And control valve(4), simultaneously Heat exchanger is additionally provided on the first pipeline(5), solar still(2)Equipped with transparent upper cover, solar still(2)It is upper Portion passes through the second pipeline and fresh-water pool(6)Connection, and solar still(2)Lower part then pass through third pipeline and vacuum flashing Room(7)Connection, in third pipeline(3)On be provided with water pump(8)With the condenser of heat pump system(9), the vacuum flashing room(7) Pass through steam pipework(10)With fresh-water pool(6)Connection, in steam pipework(10)On be provided with vacuum meter(11)And vacuum pump(12), Simultaneously in steam pipework(10)On be additionally provided with the evaporator of heat pump system(13), vacuum flashing room(7)Also by carrying water pump (8)The 4th pipeline and strong brine pond(14)Connection, and the heat exchanger(5)It is also disposed on the 4th pipeline,
The desalting plant further includes heat pump system, and the heat pump system includes the condenser(9)And evaporator (13), and condenser(9)And evaporator(13)Be interconnected by circuit, be provided on circuit between pressure gauge, High pressure fluid reservoir(15), device for drying and filtering(16), solenoid valve(17), expansion valve(18)Gas-liquid separator(19)And compressor (20).
CN201810040296.8A 2018-01-16 2018-01-16 Solar heat pump desalination plant Pending CN108128831A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810040296.8A CN108128831A (en) 2018-01-16 2018-01-16 Solar heat pump desalination plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810040296.8A CN108128831A (en) 2018-01-16 2018-01-16 Solar heat pump desalination plant

Publications (1)

Publication Number Publication Date
CN108128831A true CN108128831A (en) 2018-06-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810040296.8A Pending CN108128831A (en) 2018-01-16 2018-01-16 Solar heat pump desalination plant

Country Status (1)

Country Link
CN (1) CN108128831A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110697821A (en) * 2019-09-27 2020-01-17 中国科学院工程热物理研究所 Seawater source trans-critical carbon dioxide heat pump circulation multi-effect seawater desalination system
ES2805549A1 (en) * 2019-08-12 2021-02-12 Lopez Jose Franco Method to boil salt water, using solar thermal energy and vacuum techniques. (Machine-translation by Google Translate, not legally binding)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2805549A1 (en) * 2019-08-12 2021-02-12 Lopez Jose Franco Method to boil salt water, using solar thermal energy and vacuum techniques. (Machine-translation by Google Translate, not legally binding)
CN110697821A (en) * 2019-09-27 2020-01-17 中国科学院工程热物理研究所 Seawater source trans-critical carbon dioxide heat pump circulation multi-effect seawater desalination system
CN110697821B (en) * 2019-09-27 2021-10-26 中国科学院工程热物理研究所 Seawater source trans-critical carbon dioxide heat pump circulation multi-effect seawater desalination system

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