CN115751767B - A multi-system coupled heat, power and water cogeneration system and method - Google Patents
A multi-system coupled heat, power and water cogeneration system and method Download PDFInfo
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- CN115751767B CN115751767B CN202211383699.5A CN202211383699A CN115751767B CN 115751767 B CN115751767 B CN 115751767B CN 202211383699 A CN202211383699 A CN 202211383699A CN 115751767 B CN115751767 B CN 115751767B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 123
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- 239000007788 liquid Substances 0.000 claims abstract description 64
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- 238000004821 distillation Methods 0.000 claims abstract description 54
- 239000001257 hydrogen Substances 0.000 claims abstract description 42
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 42
- 239000000446 fuel Substances 0.000 claims abstract description 40
- 239000013505 freshwater Substances 0.000 claims abstract description 24
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 39
- 239000012466 permeate Substances 0.000 claims description 14
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- 230000000694 effects Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 abstract description 2
- 238000004146 energy storage Methods 0.000 abstract description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
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- 238000005516 engineering process Methods 0.000 description 3
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- 238000011161 development Methods 0.000 description 1
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Abstract
本发明公开了一种多系统耦合的热电水联供系统及方法，包括太阳能系统、水电解槽系统、燃料电池系统、热泵系统和膜蒸馏系统；所述太阳能系统和燃料电池系统为用户提供电能和热能；所述水电解槽系统利用太阳能系统提供的电能制取氢气，提供给燃料电池系统；所述膜蒸馏系统的料液处理水利用太阳能系统和燃料电池系统的热量制取可饮用淡水；所述热泵系统通过冷凝器和蒸发器与膜蒸馏系统耦合；本发明基于能量梯级利用原理，将太阳能系统、水电解槽、燃料电池系统、热泵系统和膜蒸馏系统集成于一体，具有较好的温度匹配效果，可实现提供电能、可饮用淡水、生活热水以及储能的目的。
The invention discloses a multi-system coupled heat, electricity and water cogeneration system and method, comprising a solar energy system, a water electrolyzer system, a fuel cell system, a heat pump system and a membrane distillation system; the solar energy system and the fuel cell system provide electric energy and heat energy for users; the water electrolyzer system utilizes the electric energy provided by the solar energy system to produce hydrogen, and provides it to the fuel cell system; the liquid treatment water of the membrane distillation system utilizes the heat of the solar energy system and the fuel cell system to produce drinkable fresh water; the heat pump system is coupled to the membrane distillation system through a condenser and an evaporator; based on the principle of energy cascade utilization, the invention integrates the solar energy system, the water electrolyzer, the fuel cell system, the heat pump system and the membrane distillation system into one, has a good temperature matching effect, and can achieve the purpose of providing electric energy, drinkable fresh water, domestic hot water and energy storage.
Description
Technical Field
The invention relates to the technical field of renewable energy source utilization and energy source systems, in particular to a multi-system coupled thermoelectric water combined supply system and a method.
Background
Renewable energy sources such as solar energy have problems of intermittence, discontinuity and the like, and a proper energy carrier is needed to provide continuous and reliable energy sources for users. The hydrogen energy is paid attention as one of the alternative energy sources of the traditional fossil energy, and the energy conservation and emission reduction can be realized by coupling the photovoltaic power generation and the water electrolysis hydrogen production technology.
The traditional energy system mainly meets the demands of people on electricity, cold and heat in a separate production mode, and has low energy utilization efficiency, so that resource waste and serious environmental pollution are caused. The distributed combined supply system is an efficient, reliable and environment-friendly energy system, and is an important development direction in the technical field of comprehensive energy utilization.
With the increasing scarcity and demand for fresh water resources, fresh water production technology has been unprecedented. The low-grade heat driven membrane distilled water treatment technology is considered as an effective water purification method, can be widely applied to the fields of sea water and brackish water desalination and the like, and has obvious advantages in the aspect of treating high-concentration brine. The inventor finds that the existing combined supply system generally couples two systems to realize one or two energy supplies, and cannot meet the requirement of people on multiple energies at the same time, so that research on a multi-energy combined supply system capable of realizing combined supply of thermoelectric and water is needed.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides a multi-system coupled thermoelectric water combined supply system and a method, which integrate solar photovoltaic/photo-thermal, proton exchange membrane water electrolysis tank, fuel cell, heat pump and membrane distillation into a whole, thereby improving the comprehensive utilization efficiency of energy.
The technical scheme of the invention is as follows:
in a first aspect of the invention, a multi-system coupled thermoelectric water co-supply system is provided, comprising a solar energy system, a water electrolysis cell system, a fuel cell system, a heat pump system and a membrane distillation system;
The solar energy system and the fuel cell system provide electric energy and heat energy for users, the water electrolysis tank system utilizes the electric energy provided by the solar energy system to produce hydrogen and provide the hydrogen to the fuel cell system, the feed liquid treatment water of the membrane distillation system utilizes the heat of the solar energy system and the fuel cell system to produce potable fresh water, and the heat pump system is coupled with the membrane distillation system through a condenser and an evaporator.
In some embodiments of the invention, the solar energy system comprises a solar photovoltaic photo-thermal integrated assembly, wherein the photovoltaic assembly is connected with a direct current controller, and the photo-thermal assembly is sequentially connected with a water pump hot water storage tank.
In some embodiments of the present invention, one path of the direct current controller is connected to the DC/AC converter to provide power for the user, and the other path is connected to the DC/DC converter to provide power for the water electrolysis cell system.
In some embodiments of the invention, the water electrolyzer system comprises a PEM water electrolyzer with a hydrogen outlet connected to a hydrogen storage bottle.
In some embodiments of the invention, the fuel cell system comprises a PEMFC pile, a hydrogen inlet of the PEMFC pile is connected with a hydrogen storage bottle, an oxygen inlet of the PEMFC pile is connected with an air compressor, a positive wet gas outlet and a negative wet gas outlet of the PEMFC pile are respectively provided with a gas-liquid separator, and a liquid outlet of the gas-liquid separator is connected with a water storage tank.
In some embodiments of the invention, the membrane distillation system comprises a membrane distillation assembly, a feed liquid tank and a permeate liquid tank, wherein a feed liquid outlet of the feed liquid tank is connected with a high-temperature feed liquid inlet of the membrane distillation assembly through a heat exchanger of a fuel cell system, a heat storage water tank of a solar energy system and a condenser of a heat pump system.
In some embodiments of the invention, the permeate outlet of the membrane distillation assembly is connected to a permeate tank via an evaporator of a heat pump system.
In some embodiments of the invention, the heat pump system comprises a compressor, a condenser, a throttle valve, and an evaporator connected in sequence.
In some embodiments of the invention, the heat pump system further comprises a regenerator for exchanging heat between the high temperature heat pump working fluid from the evaporator and the low temperature heat pump working fluid from the condenser.
In a second aspect of the present invention, there is provided a multi-system coupled thermoelectric water-combination method comprising:
When the solar energy radiation is sufficient, the solar energy system provides electric energy and hot water for users, and the membrane distillation system provides drinkable fresh water for users;
when the solar radiation is insufficient, the solar energy system provides partial electric energy and hot water for users, the fuel cell system provides electric energy for users, and the membrane distillation system provides drinkable fresh water for users;
when there is no solar radiation, the heat storage water tank provides hot water for the user, the fuel cell system provides electric energy for the user, and the membrane distillation system provides drinkable fresh water for the user.
One or more of the technical schemes of the invention has the following beneficial effects:
(1) The invention introduces a membrane distillation system to recycle the medium-low temperature waste heat of the fuel cell system and the solar energy system, produces drinkable fresh water, improves the energy utilization efficiency, and further improves the heat exchange efficiency in the membrane distillation process by organically combining the heat pump system with the membrane distillation system.
(2) The invention integrates a solar energy system, a water electrolytic tank, a fuel cell system, a heat pump system and a membrane distillation system based on the energy cascade utilization principle, has a good temperature matching effect, and can realize the purposes of providing electric energy, drinkable fresh water, domestic hot water and storing energy.
(3) The multi-system coupled thermoelectric water combined supply system provided by the invention can continuously supply electric energy, potable fresh water and domestic hot water to users according to different operation conditions, and the whole system is not affected by solar energy discontinuity.
(4) The thermoelectric water combined supply system with the multi-system coupling is provided with the heat exchangers and the heat regenerators, so that heat generated by each system can be recycled, the maximization of energy utilization is realized, and the energy utilization rate is improved.
(5) The multi-system coupled thermoelectric water combined supply system provided by the invention has the advantages of short construction period, convenience in maintenance and capability of realizing 'unattended', can be applied to remote areas which are difficult to cover, including military fields, border defense areas, islands and public power grids, meets the thermoelectric water demands of users, and achieves the purposes of saving energy, reducing emission and improving energy utilization efficiency.
Drawings
Fig. 1 is a schematic diagram of a multi-system coupled thermoelectric water co-supply system according to embodiment 1 of the present invention.
In the figure, 1, a solar photovoltaic photo-thermal integrated component, 2, a direct current controller, 3, a first DC/AC converter, 4, a DC/DC converter, 5, a PEM water heater, 6, a first electric user, 7, a hydrogen storage bottle, 8, an air compressor, 9, a pressure reducing valve, 10, a first confluence valve, 11, an air humidifier, 12, a hydrogen humidifier, 13, a hydrogen compressor, 14, a PEMFC electric pile, 15, a first gas-liquid separator, 16, a second gas-liquid separator, 17, a second DC/AC converter, 18, a second electric user, 19, a second confluence valve, 20, a water storage tank, 21, a first water pump, 22, a first heat exchanger, 23, a feed liquid tank, 24, a second water pump, 25, a second heat exchanger, 26, a fresh water user, 27, a permeate liquid tank, 28, a third water pump, 29, a membrane distillation component, 30, an evaporator, 31, a throttle valve, 32, a heat pump, 33, a working medium compressor, 34, a condenser, 35, a first valve, 36, a third valve, 37, a fourth valve, a heat storage water tank, 40, a fourth valve, a heat storage water tank, and a fourth valve are shown.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
For convenience of description, the words "upper", "lower", "left" and "right" in the present invention, if they mean only that the directions are consistent with the upper, lower, left, and right directions of the drawings per se, and do not limit the structure, only for convenience of description and simplification of the description, but do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Example 1
In an exemplary embodiment of the invention, a multi-system coupled thermoelectric water combined supply system is provided, as shown in fig. 1, and comprises a solar energy system, a water electrolysis tank system, a fuel cell system, a heat pump system and a membrane distillation system, wherein the solar energy system and the fuel cell system provide electric energy and heat energy for users, the water electrolysis tank system utilizes the electric energy provided by the solar energy system to prepare hydrogen and provide the hydrogen to the fuel cell system, the feed liquid treatment water of the membrane distillation system utilizes the heat of the solar energy system and the fuel cell system to prepare drinkable fresh water, and the heat pump system is coupled with the membrane distillation system through a condenser and an evaporator.
The solar energy system comprises a solar photovoltaic photo-thermal integrated assembly (PVT) 1, the photovoltaic assembly in the solar photovoltaic photo-thermal integrated assembly is connected with a direct current controller 2, the photo-thermal assembly is sequentially connected with a fourth water pump 40 and a heat storage water tank 39, one path of the direct current controller 2 is connected with a first DC/AC converter 3 to supply electric energy to a user, the other path of the direct current controller 2 is connected with a DC/DC converter 4 to supply electric energy to a water electrolyzer system, the photovoltaic assembly converts solar energy into electric energy, the direct current controller 2 is used for controlling direct current generated by the photovoltaic assembly, the first DC/AC converter 3 converts the direct current into alternating current to be supplied to a first electric user 6, the DC/DC converter 4 converts the direct current into direct current matched with the operation of a PEM water electrolyzer 5 to prepare hydrogen, the photo-thermal assembly converts the solar energy into heat energy to heat the water, and the hot water is stored in the heat storage water tank 39 to heat the feed liquid and supply domestic hot water.
The water electrolyzer system comprises a PEM water electrolyzer 5, wherein the PEM water electrolyzer takes a solid proton exchange membrane as an electrolyte, pure water as a reactant, water is ionized by utilizing electric energy to generate hydrogen, a hydrogen outlet of the PEM water electrolyzer is connected with a hydrogen storage bottle 7, and the hydrogen storage bottle stores the hydrogen.
The fuel cell system is a Proton Exchange Membrane Fuel Cell (PEMFC) system and comprises a PEMFC stack 14, a hydrogen inlet of the PEMFC stack 14 is connected with a hydrogen storage bottle 7 through a pressure reducing valve 9, an oxygen inlet is connected with an air compressor 8, a first gas-liquid separator 15 and a second gas-liquid separator 16 are arranged at a positive and negative wet gas outlet of the PEMFC stack and are used for recycling moisture in positive and negative wet gas of the PEMFC stack, liquid outlets of the first gas-liquid separator 15 and the second gas-liquid separator 16 are connected with a water storage tank 20 through a second confluence valve 19, the water storage tank stores the recycled moisture, a gas outlet of the first gas-liquid separator 15 enters a hydrogen pipeline through a hydrogen compressor 13 and a first confluence valve 10, a hydrogen humidifier 12 is arranged between the hydrogen inlet of the PEMFC stack and the hydrogen storage bottle, an air humidifier 11 is arranged between the oxygen inlet and the air compressor 8, the moisture of the hydrogen humidifier and the air humidifier comes from the water storage tank 20, and electric energy generated by the PEMFC stack is converted into alternating current through the second DC/AC converter 17 and then provided for a second electric user 18.
Because the fuel cell system can generate a large amount of heat, the fuel system is also provided with the first heat exchanger 22, the first water pump 21 pumps water into the PEMFC pile to take away the heat generated by the PEMFC pile, then the water enters the first heat exchanger to exchange the heat to the feed liquid of the membrane distillation system, and the cooled water enters the PEMFC pile again to cool, so that the process is continuously and circularly carried out.
The membrane distillation system comprises a membrane distillation assembly 29, a feed liquid tank 23 and a permeate liquid tank 27, wherein a feed liquid outlet of the feed liquid tank 23 is connected with a high-temperature feed liquid inlet of the membrane distillation assembly 29 through a first heat exchanger 22 of a fuel cell system, a heat storage water tank 39 of a solar energy system and a condenser 34 of a heat pump system, a permeate liquid outlet of the membrane distillation assembly is connected with the permeate liquid tank 27 through an evaporator 30 of the heat pump system, fresh water is provided for fresh water users 26, and part of fresh water in the permeate liquid tank enters the membrane distillation assembly 29 again for circulation under the action of a third water pump.
Further, the high-temperature liquid outlet of the membrane distillation assembly 29 returns to the liquid tank 23 again through the second heat exchanger 25, and the liquid in the liquid tank enters the second heat exchanger 25 to exchange heat with the high-temperature liquid from the membrane distillation assembly under the action of the second water pump 24, so that the heat of the high-temperature liquid is recycled.
The heat pump system comprises a heat pump working medium compressor 33, a condenser 34, a throttle valve 31 and an evaporator 30 which are sequentially connected to form a closed circulation loop of the thermal working medium.
Further, the heat pump system further includes a regenerator 32 for exchanging heat between the high temperature heat pump working medium from the evaporator 30 and the low temperature heat pump working medium from the condenser 34, providing energy utilization efficiency, and reducing power consumption of the compressor.
In the multi-system coupled thermoelectric water co-supply system of the present embodiment, a plurality of valves are provided, including a first valve 35, a second valve 36, a third valve 37, and a fourth valve 38, and different operation conditions can be realized by changing the opening of the valves.
The multi-system coupled thermoelectric water co-supply system comprises the following operation conditions:
(1) When the solar radiation is sufficient
The solar energy system provides the electrical energy required by the user and the thermal energy required by the membrane distillation process.
Part of the direct current generated by the PVT component of the solar energy system is converted into alternating current through the DC/AC converter 3 to provide electric energy for users, and the other part of the direct current is converted into direct current matched with the operation of the PEM water electrolyzer 5 through the DC/DC converter 4 to prepare hydrogen, and the hydrogen is stored in the hydrogen storage bottle 7 to realize the energy storage process. In addition, the thermal energy generated by the solar PVT assembly is stored in the hot water storage tank 39, one part of the thermal energy is used for heating the feed liquid, and the other part is used for providing domestic hot water for users.
The low-temperature feed liquid from the feed liquid tank 23 is preheated by the high-temperature feed liquid from the membrane distillation assembly 29 through the second heat exchanger 25, the energy utilization efficiency is improved, at the moment, the second valve 36 and the third valve 37 are closed, the first valve 35 and the fourth valve 38 are opened, the preheated feed liquid firstly flows through the heat storage water tank 39 to absorb heat, then enters the condenser 34 to absorb heat of the heat pump working medium and then enters the membrane distillation assembly 29 to complete one-time circulation, meanwhile, the low-temperature permeate liquid in the permeate liquid tank 27 is pumped into the membrane distillation assembly 29 by the third water pump 28 to complete the membrane distillation process, and the high Wen Shentou liquid from the membrane distillation assembly 29 enters the evaporator 30 of the heat pump system to exchange heat with the heat pump working medium to release heat and then flows back to the permeate liquid tank 27 to complete one-time circulation, so that drinkable fresh water is provided for users.
The high-temperature high-pressure gaseous heat pump working medium in the heat pump system enters a condenser 34 to release heat, then enters a heat regenerator 32 to further release heat, then enters a throttle valve 31 to be changed into a low-temperature low-pressure liquid working medium, then enters an evaporator 30 to absorb heat of penetrating fluid, then enters the heat regenerator 32 to further absorb heat to be changed into a gaseous working medium, then enters a heat pump working medium compressor 33 to complete one-time circulation, and the heat regenerator 32 is arranged to provide energy utilization efficiency and reduce the power consumption of the compressor.
(2) When the solar radiation is insufficient
The solar system and the fuel cell system together provide the electrical energy required by the user and the thermal energy required by the membrane distillation process.
The direct current generated by the PVT components of the solar energy system is converted into alternating current through the DC/AC converter 3 to provide electric energy for users, and the heat energy generated by the PVT components is stored in the heat storage water tank 39, one part of the heat energy is used for heating feed liquid, and the other part of the heat energy is used for providing domestic hot water for users.
The fuel cell system utilizes hydrogen stored in a hydrogen storage bottle to generate electric energy, heat energy and water, direct current generated by a PEMFC pile is converted into alternating current through a second DC/AC converter 17 to provide electric energy for a user, a first water pump 21 and a first heat exchanger 22 are connected through a pipeline to form a thermal management cycle, cooling liquid takes away waste heat generated by the PEMFC pile and heats feed liquid through the first heat exchanger 22 to release heat, a first gas-liquid separator 15 and a second gas-liquid separator 16 respectively collect moisture in wet gas at a positive outlet and a negative outlet and store the moisture in a water storage tank 20 to supplement moisture for the air humidifier 11 and the hydrogen humidifier 12 to form a water management cycle.
At this time, the second valve 36 and the fourth valve 38 are opened, the first valve 35 and the third valve 37 are closed, the liquid preheated by the second heat exchanger 25 firstly enters the first heat exchanger 22 to absorb the heat of the cooling liquid, then flows through the heat storage water tank 39 to absorb the heat, then enters the condenser 34 to absorb the heat of the working medium of the heat pump, finally enters the membrane distillation assembly 29 to complete one cycle, and the circulating mode of the penetrating liquid and the circulating mode of the heat pump are the same as the working condition of sufficient solar energy.
(3) When there is no solar radiation (night or bad weather)
The fuel cell system provides the electrical energy required by the user and the thermal energy required by the membrane distillation process.
The hot water stored in the hot water storage tank 39 can provide domestic hot water to a user, and the fuel cell system generates electric power, heat energy and water using the hydrogen gas stored in the hydrogen storage bottle.
At this time, the second valve 36 and the third valve 37 are opened, the first valve 35 and the fourth valve 38 are closed, the liquid preheated by the second heat exchanger 25 firstly enters the first heat exchanger 22 to absorb the heat of the cooling liquid, then enters the condenser 34 to absorb the heat of the working medium of the heat pump, and then enters the membrane distillation assembly 29 to complete one cycle, and the other systems are the same as the cycles under the two working conditions.
Example 2
In an exemplary embodiment of the present invention, a multi-system coupled thermoelectric water-combination method is provided, including:
when the solar energy radiation is sufficient, the solar energy system provides electric energy and hot water for users, the membrane distillation system provides drinkable fresh water for users, and the heat pump system provides heat/cold energy for users;
when the solar radiation is insufficient, the solar energy system provides partial electric energy and hot water for users, the fuel cell system provides electric energy for users, the membrane distillation system provides drinkable fresh water for users, and the heat pump system provides heat/cold energy for users;
When there is no solar radiation, the heat storage water tank provides hot water for the user, the fuel cell system provides electric energy for the user, the membrane distillation system provides drinkable fresh water for the user, and the heat pump system provides heat/cold energy for the user.
While the foregoing embodiments have been described in detail in connection with the embodiments of the invention, it should be understood that the foregoing embodiments are merely illustrative of the invention and are not intended to limit the invention, and any modifications, additions, substitutions and the like made within the principles of the invention are intended to be included within the scope of the invention.
Claims (6)
1. The multi-system coupled thermoelectric water combined supply system is characterized by comprising a solar energy system, a water electrolysis tank system, a fuel cell system, a heat pump system and a membrane distillation system;
The solar energy system and the fuel cell system provide electric energy and heat energy for users, the water electrolysis tank system utilizes the electric energy provided by the solar energy system to prepare hydrogen and provide the hydrogen to the fuel cell system, and the feed liquid treatment water of the membrane distillation system utilizes the heat of the solar energy system and the fuel cell system to prepare drinkable fresh water;
the water electrolysis cell system comprises a PEM water electrolysis cell, wherein a hydrogen outlet of the PEM water electrolysis cell is connected with a hydrogen storage bottle;
The PEM water electrolytic cell takes a solid proton exchange membrane as electrolyte, takes pure water as a reactant, and ionizes the water by utilizing electric energy to generate hydrogen;
The fuel cell system comprises a PEMFC pile, wherein a hydrogen inlet of the PEMFC pile is connected with a hydrogen storage bottle, an oxygen inlet of the PEMFC pile is connected with an air compressor, a positive wet gas outlet and a negative wet gas outlet of the PEMFC pile are both provided with gas-liquid separators, and a liquid outlet of each gas-liquid separator is connected with a water storage tank;
The fuel cell system is also provided with a first heat exchanger, a first water pump pumps water into the PEMFC pile to take away heat generated by the PEMFC pile, then the water enters the first heat exchanger to exchange the heat to feed liquid of the membrane distillation system, and the cooled water enters the PEMFC pile again to cool, and the process is continuously and circularly carried out;
the membrane distillation system comprises a membrane distillation assembly, a feed liquid tank and a permeate liquid tank, wherein a feed liquid outlet of the feed liquid tank is connected with a high-temperature feed liquid inlet of the membrane distillation assembly through a first heat exchanger of the fuel cell system, a heat storage water tank of the solar energy system and a condenser of the heat pump system.
2. The multi-system coupled thermoelectric water co-supply system of claim 1 wherein one of the direct current controllers is connected to a DC/AC converter to provide power to a user and the other is connected to the DC/DC converter to provide power to the water electrolyzer system.
3. The multi-system coupled thermoelectric water co-feed system of claim 1 wherein the permeate outlet of the membrane distillation assembly is connected to a permeate tank via an evaporator of a heat pump system.
4. The multi-system coupled thermoelectric water cogeneration system of claim 1 wherein the heat pump system comprises a compressor, a condenser, a throttle valve, and an evaporator connected in sequence.
5. The multi-system coupled thermoelectric water co-generation system of claim 4 wherein the heat pump system further comprises a regenerator for exchanging heat between the high temperature heat pump working fluid from the evaporator and the low temperature heat pump working fluid from the condenser.
6. A method of providing a multi-system coupled thermoelectric water combination using the multi-system coupled thermoelectric water combination of any one of claims 1-5, comprising:
When the solar energy radiation is sufficient, the solar energy system provides electric energy and hot water for users, and the membrane distillation system provides drinkable fresh water for users;
when the solar radiation is insufficient, the solar energy system provides partial electric energy and hot water for users, the fuel cell system provides electric energy for users, and the membrane distillation system provides drinkable fresh water for users;
when there is no solar radiation, the heat storage water tank provides hot water for the user, the fuel cell system provides electric energy for the user, and the membrane distillation system provides drinkable fresh water for the user.
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| CN114430056A (en) * | 2022-01-20 | 2022-05-03 | 上海恒劲动力科技有限公司 | Humidity control method for proton exchange membrane fuel cell system |
| 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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| CN114430056A (en) * | 2022-01-20 | 2022-05-03 | 上海恒劲动力科技有限公司 | Humidity control method for proton exchange membrane fuel cell system |
| 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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