CN110822769A - Hydrogen energy driven compression heat pump system and working method thereof - Google Patents
Hydrogen energy driven compression heat pump system and working method thereof Download PDFInfo
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- CN110822769A CN110822769A CN201911183358.1A CN201911183358A CN110822769A CN 110822769 A CN110822769 A CN 110822769A CN 201911183358 A CN201911183358 A CN 201911183358A CN 110822769 A CN110822769 A CN 110822769A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
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Abstract
The invention discloses a hydrogen energy driven compression heat pump system and a working method thereof.A hydrogen storage tank stores hydrogen, and is connected with a hydrogen pipeline of a hydrogen fuel cell, and the hydrogen fuel cell is electrically connected with an inverter and a compressor in sequence; the condenser is filled with a refrigerant, the condenser is sequentially communicated with the expansion valve, the evaporator and the compressor through a refrigerant circulating pipeline, the compressor is communicated with the condenser through the refrigerant circulating pipeline to form a circulating loop, a heat exchange interface of the condenser is communicated with a heat source to be heated, and a heat exchange interface of the evaporator is communicated with a heat source to be cooled. The invention discloses a hydrogen energy driven compression type heat pump system and a working method thereof.
Description
Technical Field
The invention relates to the technical field of driving a compression heat pump system by utilizing clean energy, in particular to a compression heat pump system driven by hydrogen energy and a working method thereof.
Background
Among the prior art, modes such as electric drive, steam drive, gas drive are used to compression heat pump technique and are driven the compressor, thereby these energy drive modes are because of distributing wide efficient popularization degree higher, but the use of these energy can cause pollution to a certain extent to traditional fossil resources can not be regenerated, has the crisis of exhaustion.
Meanwhile, patent CN201910575839.0 discloses "an energy storage type high-efficiency air source solar composite heat pump water heater", which solves the problem of excessive compression ratio of the traditional heat pump water heater in low temperature environment by using solar energy, but has low efficiency improvement, increased equipment complexity and pollution to a certain extent in the heating process.
The hydrogen energy is a renewable clean energy and is defined as a future energy at home and abroad, the technology of driving the compressor heat pump by utilizing the hydrogen fuel cell is clean, environment-friendly and pollution-free, chemical energy is directly converted into electric energy, the limitation of Carnot cycle efficiency is avoided, the power generation efficiency is high, and meanwhile, the hydrogen energy is a renewable energy and has high energy density, thereby belonging to the future development direction.
Disclosure of Invention
In view of the above, the invention provides a compression type heat pump system driven by hydrogen energy and a working method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a hydrogen-powered compression heat pump system comprising: hydrogen storage tank, hydrogen fuel cell, inverter, compressor, condenser, expansion valve, evaporimeter:
the hydrogen storage tank is internally stored with hydrogen and is connected with a hydrogen pipeline of the hydrogen fuel cell, and the hydrogen fuel cell is electrically connected with the inverter and the compressor in sequence;
the condenser is filled with a refrigerant, the condenser is sequentially communicated with the expansion valve, the evaporator and the compressor through a refrigerant circulating pipeline, the compressor is communicated with the condenser through the refrigerant circulating pipeline to form a circulating loop, a heat exchange interface of the condenser is communicated with a heat source to be heated, and a heat exchange interface of the evaporator is communicated with a heat source to be cooled.
The invention utilizes the deep clean energy hydrogen energy as the only energy supply of the system, the generated waste is only water, and the invention is environment-friendly and pollution-free; hydrogen belongs to renewable energy, and the hydrogen energy is developed to be used as a substitute of the traditional fossil energy, so that the energy is saved;
meanwhile, the refrigerant circularly flows in the expansion valve, the evaporator, the compressor and the condenser in sequence from the condenser, and the refrigerant is throttled and depressurized through the expansion valve in sequence, is subjected to heat exchange with a heat source to be cooled through the evaporator and is heated, is pressurized through the compressor, and is subjected to heat exchange with the heat source to be heated through the condenser and is cooled, so that the energy of the heat source to be cooled can be transferred to the heat source to be heated through the compression type heat pump, and the energy-saving and environment-friendly effects are achieved.
Preferably, the hydrogen in the hydrogen storage tank strictly conforms to the requirements of national standard GB/T37244-.
Preferably, the hydrogen storage tank is connected with the hydrogen fuel cell through a hydrogen circulating pump, the hydrogen circulating pump pumps the hydrogen in the hydrogen storage tank into the hydrogen fuel cell, and the hydrogen fuel cell converts the hydrogen into direct current.
The fuel cell power generation belongs to the field of directly converting chemical energy into electric energy, is not limited by Carnot cycle theorem, has the power generation efficiency of 40-60 percent generally, and has higher power generation efficiency than the traditional mode; in addition, the deep clean energy hydrogen energy is used as the only energy source of the system for supply, and the generated waste is only water, so that the system is environment-friendly and pollution-free; and hydrogen belongs to renewable energy, and the hydrogen energy is developed to be used as a substitute of the traditional fossil energy, so that the energy is saved.
Preferably, the hydrogen fuel cell transmits the direct current to the inverter, and the inverter converts the direct current into alternating current, and the alternating current drives the compressor to work.
The invention converts the type of power transformation through the inverter, so that the electric energy generated by the hydrogen fuel cell can provide working conditions for the work of the compressor.
Preferably, the condenser is provided with a condensing fan, so that the efficiency of cooling the refrigerant is accelerated by the condensing fan.
Preferably, the refrigerant is R22, R-134a, R410A or R290.
Preferably, the heat source to be heated is saturated steam, the heat source to be cooled is blast furnace slag flushing water, and the saturated steam and the blast furnace slag flushing water are both easily obtained, so that the cost is low.
5. A working method of a hydrogen energy driven compression heat pump system comprises the following steps:
s1, filling the purified hydrogen into a hydrogen storage tank, and filling a refrigerant into a condenser;
s2, pumping the hydrogen in the hydrogen storage tank into a hydrogen fuel cell through a hydrogen circulating pump, wherein the hydrogen fuel cell generates direct current;
s3, converting the direct current generated by the hydrogen fuel cell into 220V alternating current through an inverter;
s4, the 220V alternating current converted by the inverter drives the compressor to work, the compressor pushes the refrigerant to be subjected to throttling and pressure reduction by the expansion valve in sequence, enter the evaporator to perform heat exchange with a heat source to be cooled, and then heat rise and compression by the compressor until the refrigerant enters the condenser again to perform heat exchange with the heat source to be heated and then cool down after being taken away heat by the condensing fan in the condenser, and the refrigerant circulates in sequence.
Through the technical scheme, compared with the prior art, the invention discloses a hydrogen energy driven compression heat pump system and a working method thereof, and the following technical effects can be realized:
1. the invention utilizes the deep clean energy hydrogen energy as the only energy supply of the system, the generated waste is only water, and the invention is environment-friendly and pollution-free; hydrogen belongs to renewable energy, and the hydrogen energy is developed to be used as a substitute of the traditional fossil energy, so that the energy is saved;
meanwhile, the refrigerant circularly flows in the expansion valve, the evaporator, the compressor and the condenser in sequence from the condenser, and the refrigerant is throttled and depressurized through the expansion valve in sequence, is subjected to heat exchange with a heat source to be cooled through the evaporator and is heated, is pressurized through the compressor, and is subjected to heat exchange with the heat source to be heated through the condenser and is cooled, so that the energy of the heat source to be cooled can be transferred to the heat source to be heated through the compression type heat pump, and the energy-saving and environment-friendly effects are achieved.
2. The invention utilizes the deep clean energy hydrogen energy as the only energy supply of the system, the hydrogen energy density is high, and the fuel cell power generation belongs to the direct conversion of chemical energy into electric energy, is not limited by Carnot cycle theorem, the power generation efficiency is generally 40-60%, and the power generation efficiency is higher than that of the traditional mode; the hydrogen energy driven compression heat pump can be arranged away from a power grid, so that the application scene is wider and the adaptability is strong.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic diagram of the structural principle of a hydrogen energy driven compression heat pump system according to the present invention.
Wherein, the rear part 1 is a hydrogen storage tank; 2 is a hydrogen fuel cell; 3 is an inverter; 4 is a compressor; 5 is a condenser; 6 is an expansion valve; and 7 is an evaporator.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a hydrogen energy driven compression heat pump system, which comprises: hydrogen storage tank 1, hydrogen fuel cell 2, inverter 3, compressor 4, condenser 5, expansion valve 6, evaporator 7:
hydrogen is stored in the hydrogen storage tank 1, and the hydrogen storage tank 1 is sequentially connected with a hydrogen fuel cell 2, an inverter 3 and a compressor 4;
the compressor 4 is filled with refrigerant, the compressor 4 is respectively connected with the condenser 5 and the evaporator 7, meanwhile, the condenser 5 and the evaporator 7 are both connected with the expansion valve 6, the condenser 5 is connected with a heat source to be heated, and the evaporator 7 is connected with a heat source to be cooled;
the condenser 5 is filled with a refrigerant, the condenser 5 is sequentially communicated with the expansion valve 6, the evaporator 7 and the compressor 4 through a refrigerant circulating pipeline, the compressor 4 is communicated with the condenser 5 through the refrigerant circulating pipeline to form a circulating loop, a heat exchange interface of the condenser 5 is communicated with a heat source to be heated, and a heat exchange interface of the evaporator 7 is communicated with a heat source to be cooled.
In order to further optimize the technical scheme, the purity of the hydrogen stored in the hydrogen storage tank 1 is more than 99.9%.
In order to further optimize the technical scheme, the hydrogen storage tank 1 is connected with the hydrogen fuel cell 2 through a hydrogen circulating pump, the hydrogen circulating pump pumps hydrogen in the hydrogen storage tank 1 into the hydrogen fuel cell 2, and the hydrogen fuel cell 2 converts the hydrogen into direct current.
In order to further optimize the technical scheme, the hydrogen fuel cell 2 transmits direct current to the inverter 3, the inverter 3 converts the direct current into alternating current, and the alternating current drives the compressor 4 to work.
In order to further optimize the above solution, the condenser 5 has a condensing fan therein.
In order to further optimize the technical scheme, the refrigerant is R22, R-134a, R410A or R290.
In order to further optimize the technical scheme, the heat source to be heated is saturated steam, and the heat source to be cooled is blast furnace slag flushing water.
A working method of a hydrogen energy driven compression heat pump system comprises the following steps:
s1, filling the purified hydrogen into the hydrogen storage tank 1, and filling the condenser 5 with a refrigerant;
s2, pumping the hydrogen in the hydrogen storage tank 1 into the hydrogen fuel cell 2 through a hydrogen circulating pump, and generating direct current by the hydrogen fuel cell 2;
s3, converting the direct current generated by the hydrogen fuel cell 2 into 220V alternating current through an inverter;
s4, the 220V alternating current converted by the inverter 3 drives the compressor 4 to work, the compressor 4 pushes the refrigerant to sequentially reduce the pressure through the expansion valve 6, enter the evaporator 7 to exchange heat with the heat source to be cooled, then raise the temperature and pressurize the refrigerant through the compressor 4, and the refrigerant enters the condenser 5 again to exchange heat with the heat source to be heated and then is cooled after being taken away by the condensing fan in the condenser 5, and the operation is sequentially circulated.
Example (b):
in this embodiment, for example, a coking plant in a certain iron and steel group is supposed to use hydrogen energy to drive a compression heat pump, the coking plant will generate a large amount of coke oven gas during the coking process, wherein more than 50% of the coke oven gas is hydrogen, and the hydrogen with a purity of more than 99.9% can be extracted from the flue gas by a Pressure Swing Adsorption (PSA) hydrogen production technology;
the coking plant for example generates about 2 x 105 ten thousand cubic meters of coke oven gas every year, and can generate 1.2 x 105 ten thousand cubic meters of hydrogen, namely 1.08 x 105 tons of hydrogen every year according to the 56 percent of hydrogen, the hydrogen can be used for driving a heat pump, blast furnace slag flushing water generated after steel making is used as a heat source to be cooled, and low-temperature water is used as a heat source to be heated.
Purified hydrogen is loaded into a hydrogen storage tank 1, the hydrogen in the hydrogen storage tank 1 is pumped into a hydrogen fuel cell 2 through a hydrogen circulating pump, generated direct current is converted into 220V alternating current through an inverter to drive a compressor 4 to work, the condenser 5 is filled with a refrigerant, the compressor 4 pushes the refrigerant to sequentially reduce the pressure through an expansion valve 6, enter an evaporator 7 to exchange heat with a heat source to be cooled and then raise the temperature and pressurize through the compressor 4 until the refrigerant enters the condenser 5 again to exchange heat with the heat source to be heated and then is cooled down by a condensing fan in the condenser 5, and then sequentially circulates, so that the refrigerant in the condenser 5 sequentially reduces the pressure through the expansion valve 6, exchanges heat with the heat source to be cooled and raises the temperature through the evaporator 7, pressurizes through the compressor 4 and exchanges heat with the heat source to be heated and lowers the temperature through the condenser 5 (meanwhile, part of heat in the condensing fan in the condenser 5 runs on the refrigerant), therefore, the invention can transfer the energy of the heat source to be cooled to the heat source to be heated through the compression heat pump, thereby saving energy and protecting environment.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. A hydrogen-energy-driven compression heat pump system, comprising: a hydrogen storage tank (1), a hydrogen fuel cell (2), an inverter (3), a compressor (4), a condenser (5), an expansion valve (6), and an evaporator (7):
hydrogen is stored in the hydrogen storage tank (1), the hydrogen storage tank (1) is connected with the hydrogen fuel cell (2) through a hydrogen pipeline, and the hydrogen fuel cell is electrically connected with the inverter (3) and the compressor (4) in sequence;
the condenser (5) is filled with a refrigerant, the condenser (5) is sequentially communicated with the expansion valve (6), the evaporator (7) and the compressor (4) through a refrigerant circulating pipeline, the compressor (4) is communicated with the condenser (5) through the refrigerant circulating pipeline to form a circulating loop, a heat exchange interface of the condenser (5) is communicated with a heat source to be heated, and a heat exchange interface of the evaporator (7) is communicated with a heat source to be cooled.
2. A hydrogen-powered compression heat pump system as claimed in claim 1, characterized in that the hydrogen storage tank (1) and the hydrogen fuel cell (2) are connected by a hydrogen circulation pump.
3. A hydrogen-powered compression heat pump system as claimed in claim 1, characterised in that the condenser (5) has a condenser fan therein.
4. A working method of a compression heat pump system driven by hydrogen energy is characterized by comprising the following steps:
s1, filling the purified hydrogen into the hydrogen storage tank (1), and filling the condenser (5) with a refrigerant;
s2, hydrogen in the hydrogen storage tank (1) is pumped into a hydrogen fuel cell (2) through a hydrogen circulating pump, and the hydrogen fuel cell (2) generates direct current;
s3, converting the direct current generated by the hydrogen fuel cell (2) into 220V alternating current through an inverter;
s4, the 220V alternating current that inverter (3) converted drives compressor (4) work, compressor (4) promote the refrigerant is followed condenser (5) are in proper order through expansion valve (6) throttle step-down, get into evaporimeter (7) and wait to cool off the heat source and carry out the heat exchange after the intensification, warp compressor (4) pressurization, until the refrigerant enters into again in condenser (5) with wait to heat the heat source carry out the heat exchange after and by cooling down behind the condensing fan in condenser (5) takes away the heat, and circulate in proper order.
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| CN201911183358.1A CN110822769A (en) | 2019-11-27 | 2019-11-27 | Hydrogen energy driven compression heat pump system and working method thereof |
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| CN201911183358.1A CN110822769A (en) | 2019-11-27 | 2019-11-27 | Hydrogen energy driven compression heat pump system and working method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442441A (en) * | 2020-04-02 | 2020-07-24 | 银川艾尼工业科技开发股份有限公司 | Heat supply and refrigeration integrated system and method of hydrogen energy and natural energy heat pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442441A (en) * | 2020-04-02 | 2020-07-24 | 银川艾尼工业科技开发股份有限公司 | Heat supply and refrigeration integrated system and method of hydrogen energy and natural energy heat pump |
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