CN110217848A - The seawater desalination system utilized based on Combined cycle gas-steam turbine fume afterheat - Google Patents
The seawater desalination system utilized based on Combined cycle gas-steam turbine fume afterheat Download PDFInfo
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- CN110217848A CN110217848A CN201910464629.4A CN201910464629A CN110217848A CN 110217848 A CN110217848 A CN 110217848A CN 201910464629 A CN201910464629 A CN 201910464629A CN 110217848 A CN110217848 A CN 110217848A
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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
- C02F1/043—Details
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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
- C02F1/06—Flash 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
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
-
- 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
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- 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
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
Abstract
The invention discloses a kind of seawater desalination systems utilized based on Combined cycle gas-steam turbine fume afterheat, including the outlet of smoke inlet, exhanst gas outlet, flue gas heat-exchanging chamber, spray equipment, drainage pipeline, water circulating pump, low-temperature heat source entrance, low-temperature heat source, high temperature heat source outlet, high temperature heat source import, medium temperature thermal source outlet, medium temperature heat source import, absorption heat pump, heater high-temperature heat source import, heater high-temperature thermal source outlet, heater, regulating valve, multistage flash distillation heat-recovery section, multistage flash distillation heat extraction section, sea intake and brine outlet;The smoke inlet, exhanst gas outlet, flue gas heat-exchanging chamber and spray equipment form flue gas heat exchange segment.The present invention carries out sea water desalination using fume afterheat, not only it ensure that the maximization of combustion gas energy utilization, but also reduced the operating cost of sea water desalination to a certain extent, and be applicable not only to the desalination of seawater, it is equally applicable to the desalination system of bitter, there is very high practical value.
Description
Technical field:
The present invention relates to a kind of desalination plants, are utilized more particularly to one kind based on Combined cycle gas-steam turbine fume afterheat
Seawater desalination system, belong to field of sea water desalting technology.
Background technique:
Population base of China is big, water resource of per capita wretched insufficiency, and shortage of water resources becomes one of the bottleneck of socio-economic development,
Sea water desalination is to solve the problems, such as an effective strategy approach of shortage of fresh water.By years of researches, China's seawater is light
Changing the technology for developing comparative maturity has multistage flash distillation, low temperature multiple-effect distillation and reverse osmosis seawater desalting.Multistage flash distillation and low temperature are more
Effect distillation needs a large amount of steam source, and reverse osmosis seawater desalting needs to consume a large amount of electric power, and operating cost is higher.In mesh
In preceding various desalination technologies, multistage flash distillation (MSF) occupies leading position, makes water scale and accounts for about and always makes water scale in the world
60%, Technical comparing is mature, and is particularly suitable for enlargement and utilizes residual heat of electric power plant.
Natural gas is as a kind of clean energy resource, and main component is methane, after gas fired-boiler or gas turbine combustion
Product is mainly CO2And water vapour.Gas fired-boiler exhaust gas temperature is up to 200 DEG C or more, and flue gas is arranged after gas turbine does work
The temperature put is 150 DEG C or so, even if realizing the cascade utilization of the energy, flue gas emission by Combined cycle gas-steam turbine system
Temperature is still in 85 DEG C or so.If these flue gases are directly discharged in atmosphere be huge energy dissipation, therefore to flue gas
It is the power-saving technology with remarkable result that waste heat, which carries out recycling,.
It is mature using the multistage flash evaporation seawater desalting Technical comparing of steam power plant's electricity-water cogeneration at present, by being done using steam turbine
Steam extraction heating seawater after function, reduces the cost of multistage flash evaporation seawater desalting to a certain extent.In order to further decrease steam extraction
Amount needs to develop a kind of sea water desalination carried out using fume afterheat, to substantially reduce the operating cost of desalination plant.
Summary of the invention:
The technical problems to be solved by the invention: it is light to provide a kind of seawater utilized based on Combined cycle gas-steam turbine fume afterheat
Change system, to reduce the operating cost of sea water desalination.
The technical solution that the present invention is taken in order to solve the technical problem is as follows:
A kind of seawater desalination system utilized based on Combined cycle gas-steam turbine fume afterheat, the seawater desalination system include cigarette
Gas entrance, exhanst gas outlet, flue gas heat-exchanging chamber, spray equipment, drainage pipeline, water circulating pump, low-temperature heat source entrance, low-temperature heat source
Outlet, high temperature heat source outlet, high temperature heat source import, medium temperature thermal source outlet, medium temperature heat source import, absorption heat pump, heater are high
Temperature-heat-source import, heater high-temperature thermal source outlet, heater, regulating valve, multistage flash distillation heat-recovery section, multistage flash distillation heat extraction section,
Sea intake and brine outlet;The smoke inlet, exhanst gas outlet, flue gas heat-exchanging chamber and spray equipment composition flue gas heat are handed over
Change section;The low-temperature heat source entrance, low-temperature heat source outlet, high temperature heat source outlet, high temperature heat source import, medium temperature thermal source outlet, in
Temperature-heat-source import and absorption heat pump form heat source pass segment;The multistage flash distillation heat-recovery section multistage flash distillation heat extraction Duan Jun includes
Several grades of flash chambers.
The flue gas of plant gas enters flue gas heat-exchanging chamber from smoke inlet, changes with the contact with sea water of spray equipment spray
Heat, flue-gas temperature reduce, and ocean temperature increases, and are discharged from exhanst gas outlet;The seawater being heated becomes the low temperature of absorption heat pump
Heat source is sent into absorption heat pump by water circulating pump by low-temperature heat source entrance;Waste heat boiler or extracted steam from turbine are as high temperature
Heat source is sent into absorption heat pump by high temperature heat source import;Temperature-heat-source in work seawater conduct in multistage flash distillation heat extraction section,
It is sent into absorption heat pump by medium temperature heat source import, during absorption heat pump gives the heat transfer of high temperature heat source and low-temperature heat source
Temperature-heat-source;Heat and the pollution in flue gas are constantly absorbed due to the seawater of low-temperature heat source, seawater quality can reduce, with circulation
Exhausted low-quality seawater by drainage pipeline;
Seawater by sea intake enter multistage flash distillation heat extraction section promoted temperature after, a part enter multistage flash distillation heat-recovery section into
One step promotes temperature, and another part becomes a part of absorption heat pump low-temperature heat source, becomes cooled flue gas after discharging heat
Seawater is supplemented, is exported and is entered in the flue gas heat-exchanging chamber by low-temperature heat source, two-part ratio is carried out by regulating valve
It adjusts;It is drawn from intermediate a certain grade into after absorption heat pump promotion temperature after into the heating of seawater of multistage flash distillation heat-recovery section
It is again introduced into multistage flash distillation heat-recovery section, subsequently into heater, by work heating of seawater to specified sea water desalination entrance temperature
Degree enters in first order flash distillation plant later, and the strong brine for recycling generation is exhausted by brine outlet;
The multistage flash distillation heat-recovery section and several grades of flash chambers of multistage flash distillation heat extraction section pass through respective steam-water separator
It is connected with condensation pipe, the steam flashed off from vaporization chambers at different levels enters condensation by steam-water separator at different levels respectively
Fresh water is condensed into pipeline.
Heater high-temperature heat source import and heater high-temperature thermal source outlet are provided on the heater.
The principle of multistage flash distillation process of the present invention is as follows: raw material seawater being heated to introduce after certain temperature and is dodged
Steam room, since the pressure control in the flash chamber is under conditions of lower than saturated vapor pressure corresponding to hot salt brine temperature, thus it is hot
Salt water becomes superheated water after entering flash chamber and hastily partial gasification is produced so that making the temperature of hot salt brine itself reduces
It is required fresh water after raw steam condensation.Multistage flash distillation is exactly to make hot salt brine followed by several based on this principle
The flash chamber that a pressure gradually decreases, stepped evaporation cooling, while salt water also enrichment step by step, until its temperature is close to (but being higher than)
Natural sea-water temperature.Under pressure, the heating of seawater by preheating to a certain temperature, first flash chamber is introduced,
Decompression makes seawater flash evaporation, and the steam of generation forms fresh water in heat-exchange tube condensed exterior, and the seawater left, temperature drop to phase
The saturation temperature answered.Each flash chamber step pressure reducing after successively concentrated seawater is introduced, makes its flash evaporation, then condense and obtain
Fresh water.
In order to effectively utilize heat, saves and pass through pretreated raw material seawater, the brine flow in raising vaporization chamber, therefore
It is all to be discharged strong brine a part of final stage according to material balance in actual production, after another part and supply sea water mixing
Heat-recovery section is returned as circulating brine.After the heat of circulating brine recycling flash distillation fresh water steam, heated using heater,
Here salt water reaches the maximum temperature of technique requirement.Circulating brine after heating enters the vaporization chamber of the heat-recovery section first order, so
Each flash chamber is flowed successively through by throttle orifice between grades at different levels afterwards and completes multistage flash distillation, the final stage salt water after concentration recycles again.
The steam flashed off from vaporization chambers at different levels is light into condensing between the pipe of condensation chamber respectively by steam-water separator at different levels
Water.
The present invention carries out sea water desalination using fume afterheat, not only ensure that the maximization of combustion gas energy utilization, but also certain
The operating cost that sea water desalination is reduced in degree is applicable not only to the desalination of seawater, is equally applicable to the desalination system of bitter
System has very high practical value.
Detailed description of the invention:
Fig. 1 is the structural diagram of the present invention.
Specific embodiment:
The present invention will be further explained in the following with reference to the drawings and specific embodiments:
Referring to Fig. 1, in figure, 1-- smoke inlet, 2-- exhanst gas outlet, 3-- flue gas heat-exchanging chamber, 4-- spray equipment, 5-- draining
Mouthful, 6-- water circulating pump, 7-- low-temperature heat source entrance, 8-- low-temperature heat source outlet, 9-- high temperature heat source outlet, 10-- high temperature heat source into
Mouthful, 11-- medium temperature thermal source outlet, 12-- medium temperature heat source import, 13-- absorption heat pump, 14-- heater high-temperature heat source import,
15-- heater high-temperature thermal source outlet, 16-- heater, 17-- regulating valve, 18-- multistage flash distillation heat-recovery section, 19-- Multi-stage flash
Steam heat extraction section, 20-- sea intake, 21-- brine outlet.
Embodiment: a kind of seawater desalination system utilized based on Combined cycle gas-steam turbine fume afterheat, including flue gas are entered
Mouth 1, exhanst gas outlet 2, flue gas heat-exchanging chamber 3, spray equipment 4, drainage pipeline 5, water circulating pump 6, low-temperature heat source entrance 7, low temperature
Thermal source outlet 8, high temperature heat source export 9, high temperature heat source import 10, medium temperature thermal source outlet 11, medium temperature heat source import 12, absorption type heat
Pump 13, heater high-temperature heat source import 14, heater high-temperature thermal source outlet 15, heater 16, regulating valve 17, Multi-stage flash steaming are returned
Receive section 18, multistage flash distillation heat extraction section 19, sea intake 20 and brine outlet 21;Wherein: smoke inlet 1, exhanst gas outlet 2, cigarette
Gas heat-exchanging chamber 3 and spray equipment 4 form flue gas heat exchange segment;Low-temperature heat source entrance 7, low-temperature heat source outlet 8, high temperature heat source go out
Mouth 9, high temperature heat source import 10, medium temperature thermal source outlet 11, medium temperature heat source import 12 and absorption heat pump 13 form heat source pass segment;
Multistage flash distillation heat-recovery section 18 and multistage flash distillation heat extraction section 19 include several grades of flash chambers.
The flue gas of plant gas enters flue gas heat-exchanging chamber 3 from smoke inlet 1, the contact with sea water sprayed with spray equipment 4
Heat exchange, flue-gas temperature reduce, and ocean temperature increases, and are discharged from exhanst gas outlet 2;The seawater being heated becomes absorption heat pump 13
Low-temperature heat source is sent into absorption heat pump 13 by water circulating pump 6 by low-temperature heat source entrance 7;Waste heat boiler or extracted steam from turbine
As high temperature heat source, it is sent into absorption heat pump 13 by high temperature heat source import 10;Work sea in multistage flash distillation heat extraction section 19
Water be used as in temperature-heat-source, be sent into absorption heat pump 13 by medium temperature heat source import 12, absorption heat pump 13 by high temperature heat source and
The heat transfer of low-temperature heat source gives middle temperature-heat-source;Heat and the pollution in flue gas are constantly absorbed due to the seawater of low-temperature heat source, sea
Water quality can reduce, and as the cycle progresses be exhausted low-quality seawater by drainage pipeline 5;
After seawater enters the promotion temperature of multistage flash distillation heat extraction section 19 by sea intake 20, a part enters multistage flash distillation recuperation of heat
Section 18 further promotes temperature, and another part becomes a part of 13 low-temperature heat source of absorption heat pump, becomes cold after discharging heat
But the supplement seawater of flue gas is entered in the flue gas heat-exchanging chamber 3 by low-temperature heat source outlet 8, and two-part ratio passes through
Regulating valve 7 is adjusted;It is drawn from intermediate a certain grade into absorption after into the heating of seawater of multistage flash distillation heat-recovery section 18
Heat pump 13 is again introduced into multistage flash distillation heat-recovery section 18 after promoting temperature, subsequently into heater 16, by work heating of seawater
To specified sea water desalination inlet temperature, enters in first order flash distillation plant later, recycle the strong brine of generation by brine outlet
21 exhaust;
The multistage flash distillation heat-recovery section 18 and several grades of flash chambers of multistage flash distillation heat extraction section 19 pass through respective carbonated drink point
It is connected from device with condensation pipe, the steam flashed off from vaporization chambers at different levels is entered by steam-water separator at different levels respectively
Fresh water is condensed into condensation pipe.
Heater high-temperature heat source import 14 and heater high-temperature thermal source outlet 15 are provided on heater 16.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, it is all
It is any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the invention, still falls within
Within the protection scope of technical solution of the present invention.
Claims (3)
1. a kind of seawater desalination system utilized based on Combined cycle gas-steam turbine fume afterheat, it is characterised in that: the seawater
Desalination system include smoke inlet (1), exhanst gas outlet (2), flue gas heat-exchanging chamber (3), spray equipment (4), drainage pipeline (5),
Water circulating pump (6), low-temperature heat source entrance (7), low-temperature heat source outlet (8), high temperature heat source outlet (9), high temperature heat source import (10),
Medium temperature thermal source outlet (11), medium temperature heat source import (12), absorption heat pump (13), heater high-temperature heat source import (14), heating
Device high temperature heat source exports (15), heater (16), regulating valve (17), multistage flash distillation heat-recovery section (18), multistage flash distillation heat extraction section
(19), sea intake (20) and brine outlet (21);The smoke inlet (1), exhanst gas outlet (2), flue gas heat-exchanging chamber (3)
Flue gas heat exchange segment is formed with spray equipment (4);The low-temperature heat source entrance (7), low-temperature heat source outlet (8), high temperature heat source go out
Mouth (9), high temperature heat source import (10), medium temperature thermal source outlet (11), medium temperature heat source import (12) and absorption heat pump (13) composition
Heat source pass segment;The multistage flash distillation heat-recovery section (18) and multistage flash distillation heat extraction section (19) include several grades of flash chambers.
2. the seawater desalination system according to claim 1 utilized based on Combined cycle gas-steam turbine fume afterheat, special
Sign is: the flue gas of plant gas enters flue gas heat-exchanging chamber (3) from smoke inlet (1), the seawater with spray equipment (4) spray
Contact heat-exchanging, flue-gas temperature reduce, and ocean temperature increases, and are discharged from exhanst gas outlet (2);The seawater being heated becomes absorption type heat
The low-temperature heat source for pumping (13) is sent into absorption heat pump (13) by water circulating pump (6) by low-temperature heat source entrance (7);Waste heat pot
Furnace or extracted steam from turbine are sent into absorption heat pump (13) as high temperature heat source by high temperature heat source import (10);Multistage flash distillation
Temperature-heat-source in work seawater conduct in heat extraction section (19), is sent into absorption heat pump (13) by medium temperature heat source import (12),
Absorption heat pump (13) gives the heat transfer of high temperature heat source and low-temperature heat source to middle temperature-heat-source;Since the seawater of low-temperature heat source is continuous
The heat and pollution, seawater quality absorbed in flue gas can reduce, and pass through drainage pipeline (5) as the cycle progresses for low-quality sea
Water exhausts;
After seawater enters multistage flash distillation heat extraction section (19) promotion temperature by sea intake (20), a part enters Multi-stage flash steaming
Exhausting section (18) further promotes temperature, and another part becomes a part of absorption heat pump (13) low-temperature heat source, discharges heat
The supplement seawater for becoming cooled flue gas afterwards, is entered in the flue gas heat-exchanging chamber (3), two by low-temperature heat source outlet (8)
The ratio divided is adjusted by regulating valve (17);From intermediate a certain after into the heating of seawater of multistage flash distillation heat-recovery section (18)
Grade is drawn to enter after absorption heat pump (13) promote temperature and is again introduced into multistage flash distillation heat-recovery section (18), subsequently into heating
Device (16) enters work heating of seawater to specified sea water desalination inlet temperature in first order flash distillation plant later, and circulation generates
Strong brine exhausted by brine outlet (21);
Several grades of flash chambers of the multistage flash distillation heat-recovery section (18) and multistage flash distillation heat extraction section (19) pass through respective vapour
Separator is connected with condensation pipe, the steam flashed off from vaporization chambers at different levels, passes through steam-water separator at different levels respectively
Into condensing into fresh water in condensation pipe.
3. the seawater desalination system according to claim 1 utilized based on Combined cycle gas-steam turbine fume afterheat, special
Sign is: being provided with heater high-temperature heat source import (14) and heater high-temperature thermal source outlet (15) on the heater (16).
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110526318A (en) * | 2019-09-17 | 2019-12-03 | 南京龙源环保有限公司 | A kind of flue gas disappears the total energy approach method and system of white coupling sea water desalination |
CN111517393A (en) * | 2020-04-02 | 2020-08-11 | 郑州电力高等专科学校 | Method for reducing temperature discharge of seawater cooling power plant |
CN111807443A (en) * | 2020-07-22 | 2020-10-23 | 天津理工大学 | Disc type solar micro air turbine thermal power generation and seawater desalination combined system |
CN111908543A (en) * | 2020-09-17 | 2020-11-10 | 成都建筑材料工业设计研究院有限公司 | Direct waste heat source cement production and seawater desalination combined implementation system and method |
CN111924919A (en) * | 2020-07-08 | 2020-11-13 | 东南大学 | Multistage flash evaporation seawater desalination system based on magnetic light absorption phase-change material |
CN112062189A (en) * | 2020-06-05 | 2020-12-11 | 北京清建能源技术有限公司 | Multistage multi-heat-source evaporation type hot fresh water preparation device and method and waste heat recovery system |
CN115028223A (en) * | 2022-08-10 | 2022-09-09 | 山东天瑞重工有限公司 | System for sea heat pump unites sea water desalination system operation |
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CN102616875A (en) * | 2012-04-09 | 2012-08-01 | 苏州热工研究院有限公司 | Method for performing seawater desalination by utilizing residual heat in thermal discharge of power station |
CN205307834U (en) * | 2016-01-13 | 2016-06-15 | 湖南铁道职业技术学院 | Absorption heat pump sea water desalination device of recovery waste heat |
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CN102616875A (en) * | 2012-04-09 | 2012-08-01 | 苏州热工研究院有限公司 | Method for performing seawater desalination by utilizing residual heat in thermal discharge of power station |
CN205307834U (en) * | 2016-01-13 | 2016-06-15 | 湖南铁道职业技术学院 | Absorption heat pump sea water desalination device of recovery waste heat |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110526318A (en) * | 2019-09-17 | 2019-12-03 | 南京龙源环保有限公司 | A kind of flue gas disappears the total energy approach method and system of white coupling sea water desalination |
CN110526318B (en) * | 2019-09-17 | 2023-10-24 | 国能龙源环保南京有限公司 | Comprehensive utilization method and system for energy of smoke whitening coupling sea water desalination |
CN111517393A (en) * | 2020-04-02 | 2020-08-11 | 郑州电力高等专科学校 | Method for reducing temperature discharge of seawater cooling power plant |
CN112062189A (en) * | 2020-06-05 | 2020-12-11 | 北京清建能源技术有限公司 | Multistage multi-heat-source evaporation type hot fresh water preparation device and method and waste heat recovery system |
CN112062189B (en) * | 2020-06-05 | 2022-09-27 | 北京清建能源技术有限公司 | Multistage multi-heat-source evaporation type hot fresh water preparation device and method and waste heat recovery system |
CN111924919A (en) * | 2020-07-08 | 2020-11-13 | 东南大学 | Multistage flash evaporation seawater desalination system based on magnetic light absorption phase-change material |
CN111924919B (en) * | 2020-07-08 | 2022-11-25 | 东南大学 | Multistage flash evaporation seawater desalination system based on magnetic light absorption phase change material |
CN111807443A (en) * | 2020-07-22 | 2020-10-23 | 天津理工大学 | Disc type solar micro air turbine thermal power generation and seawater desalination combined system |
CN111908543A (en) * | 2020-09-17 | 2020-11-10 | 成都建筑材料工业设计研究院有限公司 | Direct waste heat source cement production and seawater desalination combined implementation system and method |
CN115028223A (en) * | 2022-08-10 | 2022-09-09 | 山东天瑞重工有限公司 | System for sea heat pump unites sea water desalination system operation |
CN115028223B (en) * | 2022-08-10 | 2022-11-01 | 山东天瑞重工有限公司 | System for sea heat pump unites sea water desalination system operation |
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