CN105317486A - Water-power co-production system recycling latent heat of humid air and method of water-power co-production system - Google Patents
Water-power co-production system recycling latent heat of humid air and method of water-power co-production system Download PDFInfo
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- CN105317486A CN105317486A CN201510663855.7A CN201510663855A CN105317486A CN 105317486 A CN105317486 A CN 105317486A CN 201510663855 A CN201510663855 A CN 201510663855A CN 105317486 A CN105317486 A CN 105317486A
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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
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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
- Y02A20/138—Water desalination using renewable energy
- Y02A20/142—Solar thermal; Photovoltaics
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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
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
- Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
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Abstract
The invention disclose a water-power co-production system recycling latent heat of humid air and a method of the water-power co-production system and belongs to the field of energy and power. The water-power co-production system and the method of the water-power co-production system are characterized in that the water-power co-production system further comprises an organic rankine cycle subsystem, and the subsystem comprises a gas-liquid separator, an organic working medium turbine, a heat regenerator, an electric generator, a throttle valve, a steam condenser and an organic working medium pump; the gas-liquid separator is connected with an organic working medium side outlet of a dehumidifier of a seawater desalination system, the organic working medium turbine is connected with a gas-side outlet of the gas-liquid separator, and the heat regenerator is connected with a liquid-side outlet of the gas-liquid separator; the electric generator is connected with a rotary shaft of the organic working medium turbine, the throttle valve is connected with a heat-side outlet of the electric generator, and the steam condenser is connected with a throttle valve outlet and an organic working medium turbine outlet simultaneously; the organic working medium pump is connected with a steam condenser outlet, and an organic working medium pump outlet is connected with an organic working medium side outlet of the dehumidifier through the heat regenerator. According to the water-power co-production system and the method of the water-power co-production system, the latent heat of the humid air side of the seawater desalination system is fully used, so that the comprehensive utilization efficiency of thermal energy is improved, the principle of cascade utilization of energy is followed, and the national objectives of energy conservation, emission reduction, and water resource sustained development strategy are met.
Description
Technical field
The present invention relates to a kind of the water-electricity cogeneration system and the method thereof that reclaim wet air latent heat, belong to middle low-temperature heat source UTILIZATION OF VESIDUAL HEAT IN and field of dynamic engineering.
Background technique
Humidification dehumidifying technology is the important method in miniaturization method for desalting seawater, namely after the hot sea water spray after heat collector heating mixes with cool air, produce High Temperature Moist Air, High Temperature Moist Air and charging Mare Frigoris water carry out heat exchange simultaneously, obtain fresh water after water vapor condensation after release heat in wet air, complete desalination of sea water thermodynamic cycle.But in productive life, be often the situation that simultaneous, single desalination of sea water thermodynamic system can not meet water power associating demand to the demand of fresh water and electric power; The concentrated seawater that humidifier is discharged directly is entered air by simultaneously traditional humidification dehumidifying desalination of sea water thermodynamic system, the heat of concentrated seawater can not be recycled utilization, not only have a strong impact on the utilization efficiency of heat energy of seawater desalination system, also can cause thermo-pollution to environment simultaneously.But for can meet water power demand and the research making full use of the inner waste heat of humidification dehumidifying seawater desalination system does not also draw attention simultaneously.
Summary of the invention
The object of the invention is to propose a kind of water-electricity cogeneration system and method thereof that can reclaim wet air latent heat.
Reclaim a water-electricity cogeneration system for wet air latent heat, comprise desalination of sea water subtense angle;
Desalination of sea water subtense angle comprises sea water pump, preheater, solar thermal collector, humidifier, dehumidifier and blower; Wherein sea water pump outlet is connected with the side-entrance of preheater charging seawater, preheater charging seawater side outlet is connected with solar thermal collector import, solar thermal collector outlet is connected with the side-entrance of humidifier seawater, humidifier seawater side outlet is connected with the side-entrance of preheater concentrated seawater, and preheater concentrated seawater side outlet communicates with air; The outlet of humidifier air side is connected with the import of dehumidifier air side, and dehumidifier air side and dilute side export and be connected with the import of fresh water well with blower respectively, and blower export is connected with the import of humidifier air side.
It is characterized in that: this system also comprises ORC subsystem, this subtense angle comprises gas-liquid separator, organic working medium turbine, generator, regenerator, throttle valve, condenser, organic working medium pump;
Dehumidifier organic working medium side outlet is connected with gas-liquid separator import, gas-liquid separator gas side and liquid side outlet are connected with the hot side-entrance of regenerator with the import of organic working medium turbine respectively, the rotating shaft of organic working medium turbine is connected with generator, the hot side outlet of regenerator is connected with throttle valve import, throttle valve exports the while of outlet with organic working medium turbine and is connected with vapour condenser import, vapour condenser outlet is connected with organic working medium pump inlet, organic working medium pump discharge is connected with the import of regenerator cold side, and regenerator cold side outlet port is connected with the side-entrance of dehumidifier organic working medium.
The method of work of the water-electricity cogeneration system of recovery wet air latent heat according to claim 1, comprise following process: desalination of sea water subtense angle charging seawater enters preheater after sea water pump pressurization, charging seawater after preheating enters solar thermal collector and absorbs solar radiation, hot sea water after heating enters humidifier and mixes with air, the concentrated seawater obtained after humidification enters preheater and adds hot feed seawater and enter air after discharging from humidifier seawater side outlet; Wet air simultaneously in humidifier after humidification enters dehumidifier, and the wet air condensation water in dehumidifier after release heat enters fresh water well, and the wet air after dehumidifying enters blower, and the wet air after blower boosting enters humidifier;
Characterized by further comprising following process: the organic working medium steam formed after the dehumidifier heating in desalination of sea water subtense angle enters gas-liquid separator, the organic working medium steam obtained after being separated flows into organic working medium turbine expansion, drawing generator generates electricity, organic working medium liquid simultaneously after being separated flows into the hot side of regenerator bottom gas-liquid separator, throttle valve is entered after release heat, organic working medium after step-down enters condenser after mixing with organic turbine steam discharge, condensed organic working medium liquid enters the boosting of organic working medium pump, high pressure organic working medium liquid enters the side-entrance of dehumidifier organic working medium after entering the intensification of regenerator cold side and restarts thermodynamic cycle.
By utilizing above-mentioned ORC subsystem, both wet air condensation latent heat can have been utilized to generate electricity, the concentrated seawater heat extraction of humidification dehumidification type desalination of sea water subtense angle can be reclaimed again, improve the efficiency of energy utilization of seawater desalination system, reduce steam discharge thermo-pollution, meet the demand of productive life to fresh water and electric energy simultaneously.
Preheater in above-mentioned desalination of sea water subtense angle adopts titanium as material, to prevent the corrosion of seawater heat exchanger body, makes full use of the feature that the plate type heat exchanger coefficient of heat transfer is high simultaneously, makes heat exchanger structure compacter.
Dehumidifier in above-mentioned desalination of sea water subtense angle is plate-fin heat exchanger, simultaneously at the indirect water inlet pipe of air side plate, condensed water is normally discharged.
Organic working medium turbine in above-mentioned ORC subsystem is inward flow turbine, makes full use of the feature that efficiency under radial-inward-flow turbine small flow is high, promotes the energy utilization efficiency of water-electricity cogeneration system.
Organic working medium turbine in above-mentioned ORC subsystem and generator adopt integral type enclosed construction, avoid organic working medium to reveal the adverse effect caused system and environment.
Organic working medium pump in above-mentioned ORC subsystem is frequency conversion centrifugal pump, changes organic working medium revolution speed to ensure the stable and high effective operation of organic Rankine bottoming cycle under variable working condition condition.
Accompanying drawing explanation
Fig. 1 is the water-electricity cogeneration system of the recovery wet air latent heat that the present invention proposes;
Number in the figure title: 1 sea water pump, 2 preheaters, 3 solar thermal collectors, 4 humidifiers, 5 dehumidifiers, 6 blowers, 7 fresh water wells, 8 gas-liquid separators, 9 organic working medium turbines, 10 generators, 11 regenerators, 12 throttle valve, 13 condensers, 14 organic working medium pumps, A desalination of sea water subtense angle, B ORC subsystem.
Embodiment
The running of the water-electricity cogeneration system reclaiming wet air latent heat is described referring to Fig. 1.
Fig. 1 is the water-electricity cogeneration system of the recovery wet air latent heat that the present invention proposes.The working procedure of this system is as follows: charging seawater enters preheater after sea water pump pressurization, charging seawater after preheating enters solar thermal collector and absorbs solar radiation, hot sea water after heating enters humidifier and mixes with air, the concentrated seawater obtained after humidification enters preheater and adds hot feed seawater and enter air after discharging from humidifier seawater side outlet, wet air simultaneously in humidifier after humidification enters dehumidifier, and the wet air condensation water in dehumidifier after release heat enters fresh water well, and the wet air after dehumidifying enters blower, and the wet air after blower boosting enters humidifier, after installing ORC subsystem additional, the organic working medium steam formed after the dehumidifier heating in desalination of sea water subtense angle enters gas-liquid separator, the organic working medium steam obtained after being separated flows into organic working medium turbine expansion, drawing generator generates electricity, organic working medium liquid simultaneously after being separated flows into regenerator bottom gas-liquid separator, throttle valve is entered after release heat, organic working medium after step-down enters condenser after mixing with organic turbine steam discharge, condensed organic working medium liquid enters the boosting of organic working medium pump, high pressure organic working medium liquid enters dehumidifier after entering regenerator intensification and restarts thermodynamic cycle.
Claims (7)
1. reclaim a water-electricity cogeneration system for wet air latent heat, comprise desalination of sea water subtense angle (A);
Desalination of sea water subtense angle (A) comprises sea water pump (1), preheater (2), solar thermal collector (3), humidifier (4), dehumidifier (5) and blower (6); Wherein sea water pump (1) outlet is connected with the side-entrance of preheater (2) charging seawater, preheater (2) charging seawater side outlet is connected with solar thermal collector (3) import, solar thermal collector (3) outlet is connected with humidifier (4) seawater side-entrance, humidifier (4) seawater side outlet is connected with preheater (2) concentrated seawater side-entrance, and preheater (2) concentrated seawater side outlet communicates with air; The outlet of humidifier (4) air side is connected with dehumidifier (5) air side import, dehumidifier (5) air side and dilute side export and are connected with fresh water well (7) import with blower (6) respectively, and blower (6) outlet is connected with humidifier (4) air side import;
It is characterized in that: this system also comprises ORC subsystem (B), this subtense angle comprises gas-liquid separator (8), organic working medium turbine (9), generator (10), regenerator (11), throttle valve (12), condenser (13), organic working medium pump (14);
Dehumidifier (5) organic working medium side outlet is connected with gas-liquid separator (8) import, gas-liquid separator (8) gas side and liquid side outlet are connected with regenerator (11) hot side-entrance with organic working medium turbine (9) import respectively, organic working medium turbine (9) rotating shaft is connected with generator (10), regenerator (11) hot side outlet is connected with throttle valve (12) import, throttle valve (12) outlet is connected with vapour condenser (13) import with organic working medium turbine (9) outlet simultaneously, vapour condenser (13) outlet is connected with organic working medium pump (14) import, organic working medium pump (14) outlet is connected with regenerator (11) cold side import, regenerator (11) cold side outlet port is connected with dehumidifier (5) organic working medium side-entrance.
2. the water-electricity cogeneration system of recovery wet air latent heat according to claim 1, is characterized in that: the preheater (2) in above-mentioned desalination of sea water subtense angle (A) is titanium material plate type heat exchanger.
3. the water-electricity cogeneration system of recovery wet air latent heat according to claim 1, is characterized in that: the dehumidifier (5) in above-mentioned desalination of sea water subtense angle (A) is plate-fin heat exchanger.
4. the water-electricity cogeneration system of recovery wet air latent heat according to claim 1, is characterized in that: the organic working medium turbine (9) in above-mentioned ORC subsystem (B) is inward flow turbine.
5. the water-electricity cogeneration system of recovery wet air latent heat according to claim 1, is characterized in that: the organic working medium turbine (9) in above-mentioned ORC subsystem (B) and generator (10) are integral type enclosed construction.
6. the water-electricity cogeneration system of recovery wet air latent heat according to claim 1, is characterized in that: the organic working medium pump (14) in above-mentioned ORC subsystem (B) is frequency conversion centrifugal pump.
7. the method for work of the water-electricity cogeneration system of recovery wet air latent heat according to claim 1, comprise following process: desalination of sea water subtense angle (A) charging seawater enters preheater (2) after sea water pump (1) pressurization, charging seawater after preheating enters solar thermal collector (3) and absorbs solar radiation, hot sea water after heating enters humidifier (4) and mixes with air, the concentrated seawater obtained after humidification enters preheater (2) and adds hot feed seawater and enter air after discharging from humidifier (4) seawater side outlet; Wet air simultaneously in humidifier (4) after humidification enters dehumidifier (5), wet air condensation water in dehumidifier (5) after release heat enters fresh water well (7), wet air after dehumidifying enters blower (6), and the wet air after blower (6) boosting enters humidifier (4);
Characterized by further comprising following process: the organic working medium steam formed after dehumidifier (5) heating in desalination of sea water subtense angle (A) enters gas-liquid separator (8), the organic working medium steam obtained after being separated flows into organic working medium turbine (9) and expands, drawing generator (10) generates electricity, organic working medium liquid simultaneously after being separated flows into regenerator (11) hot side from gas-liquid separator (8) bottom, throttle valve (12) is entered after release heat, organic working medium after step-down enters condenser (13) after mixing with organic turbine (9) steam discharge, condensed organic working medium liquid enters organic working medium pump (14) boosting, high pressure organic working medium liquid enters dehumidifier (5) organic working medium side-entrance after entering the intensification of regenerator (11) cold side and restarts thermodynamic cycle.
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Cited By (6)
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| CN105800716A (en) * | 2016-04-01 | 2016-07-27 | 南京航空航天大学 | Sea water desalination system and method achieved by means of condensate waste heat of refrigeration system |
| CN107542508A (en) * | 2017-08-07 | 2018-01-05 | 江苏科技大学 | A kind of light four combined production device of Ship Waste Heat cascade utilization formula cool and thermal power and method of work |
| PL422416A1 (en) * | 2017-07-31 | 2019-02-11 | Kosowski | Method for increasing efficiency of a power station thermal cycle, preferably for the so called "dry" working media |
| CN109612148A (en) * | 2018-11-12 | 2019-04-12 | 南京航空航天大学 | Humid air thermodynamic cycle combined power and cooling system and its working method |
| CN109966766A (en) * | 2019-03-15 | 2019-07-05 | 南京航空航天大学 | In conjunction with heat pump energy-conserving high-efficiency evaporating and crystallizing and air dehumidification system and method |
| CN114872873A (en) * | 2022-06-10 | 2022-08-09 | 浙江大学 | Marine zero-carbon-emission energy system combining solution dehumidification air conditioning and seawater desalination technology and working method thereof |
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| CN109966766A (en) * | 2019-03-15 | 2019-07-05 | 南京航空航天大学 | In conjunction with heat pump energy-conserving high-efficiency evaporating and crystallizing and air dehumidification system and method |
| CN114872873A (en) * | 2022-06-10 | 2022-08-09 | 浙江大学 | Marine zero-carbon-emission energy system combining solution dehumidification air conditioning and seawater desalination technology and working method thereof |
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| CN105317486B (en) | 2017-08-04 |
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