CN209782244U - gas-electricity-hydrogen comprehensive energy supply system - Google Patents

gas-electricity-hydrogen comprehensive energy supply system Download PDF

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Publication number
CN209782244U
CN209782244U CN201920470187.XU CN201920470187U CN209782244U CN 209782244 U CN209782244 U CN 209782244U CN 201920470187 U CN201920470187 U CN 201920470187U CN 209782244 U CN209782244 U CN 209782244U
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lng
hydrogen
gas
filling
cng
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廖勇
龙海洋
蒲黎明
田静
张建良
宋光红
黄勇
王科
孙润林
张迅
孙爱国
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China National Petroleum Corp
China Petroleum Engineering and Construction Corp
China Petroleum Engineering Co Ltd
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China Petroleum Engineering and Construction Corp
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Abstract

The utility model discloses a gas electricity hydrogen comprehensive energy supply system, including LNG storage and fuel supply system, power supply and storage system, electrochemical reaction system, heat transfer system, LNG filling system, CNG filling system, hydrogen filling system and tail gas processing system etc.. The utility model discloses a liquefied natural gas is as SOFC starting fuel, can provide stable power, heat source to can constitute coupling electric power system and finally utilize SOEC brineelectrolysis hydrogen manufacturing with on-the-spot wind energy, light energy distributed power generation equipment, the utility model discloses compare with traditional single energy electrolytic hydrogen technique, provided the natural power fluctuation when relying on SOFC electricity generation to supply wind energy, the electricity generation by-product used heat to maintain reaction temperature's technical route, realized comprehensive energy high efficiency utilization, the automobile energy comprehensive supply of LNG, CNG, electricity, hydrogen can be realized to this device, is one of the feasible construction mode of following oil gas electricity hydrogen comprehensive power station.

Description

Gas-electricity-hydrogen comprehensive energy supply system
Technical Field
The utility model belongs to the technical field of the new forms of energy technique and specifically relates to an adopt new forms of energy such as LNG, wind, light to realize system and technological method that gas electricity hydrogen was synthesized and is supplied with.
background
Liquefied Natural Gas (LNG), the main component of which is methane, is known as the cleanest fossil energy on earth. The liquefied natural gas is colorless, tasteless, nontoxic and noncorrosive, the volume of the liquefied natural gas is about 1/625 of the volume of the same amount of gaseous natural gas, and the mass of the liquefied natural gas is only about 45 percent of the same volume of water.
The main component of the liquefied natural gas is methane, which has an atmospheric boiling point of-161 ℃. The manufacturing process is that the natural gas produced by the gas field is purified (dehydrated, dealkylated and deacidified), then the methane is changed into liquid by adopting the processes of throttling, expansion and refrigeration of an external cold source, and the methane is required to be heated externally and gasified again when in use. Liquefied natural gas has the advantages of no impurities and pure components, and is an ideal fuel source of fuel cells.
Solid oxide cells (SOFC) are based on ceramic materials, the electrolyte usually being ZrO2 (zirconia), which constitutes O2-Electric conductor Y of2O3(yttria) was used as stabilized YSZ (stabilized zirconia). The fuel electrode in the electrode is made of Ni and YSZ composite porous body to form metal ceramic, and the air electrode is made of LaMnO3(lanthanum manganese oxide). The clapboard adopts LaCrO3(lanthanum chromium oxide). The reaction formula for SOFC is as follows:
A fuel electrode: h2+O2-=H2O+2e- (1)
An air electrode: 1/2O2+2e-=O2- (2)
The method comprises the following steps: h2+1/2O2=H2O (3)
fuel electrode, H2Move through the electrolyte, with O2-reaction to form H2O and e-. Air electrode consisting of2And e-formation of O2-. H is totally the same as other fuel cells2And O2Generation of H2and O. In the SOFC, since it is of a high-temperature operation type, the natural gas main component CH can be directly introduced into the SOFC without any other catalytic action4Modified into H2The residual CO component can be directly used as fuel.
The Solid Oxide Electrolytic Cell (SOEC) is a solid oxide fuel cell operated in reverse, and electrolyzes H under an electrolysis mode by applying voltage and high temperature2o, production of H2And O2And the electric energy and the heat energy are converted into chemical energy. The reaction formula for SOEC is as follows:
Cathode: h2O+2e-=H2+O2- (4)
Anode: o is2-=2e-+1/2O2 (5)
The method comprises the following steps: h2O+2e=H2+1/2O2 (6)
The utility model discloses plan to combine the new forms of energy technologies such as traditional liquefied natural gas technique, fuel cell technique cross the field to solve future world vehicle LNG, CNG, electric energy, hydrogen energy and synthesize the supply problem.
Disclosure of Invention
In order to overcome the shortcoming of prior art, the utility model provides an adopt new forms of energy such as LNG, wind, light to realize the comprehensive system and the technological method of supplying with of gas electricity hydrogen, aim at solving the future problem of supplying with hydrogen electricity that refuels gas station, application prospect is wide.
The utility model adopts the technical proposal that: the utility model provides a gas electricity hydrogen comprehensive energy supply system, includes that LNG stores and fuel supply system, supplies the power storage system, electrochemical reaction system, heat transfer system, LNG filling system, CNG filling system, hydrogen filling system and tail gas processing system, wherein:
The LNG storage and fuel supply system comprises an LNG storage tank, an LNG filling pump, an LNG plunger pump, an LNG booster pump, an LNG high-pressure vaporizer, an LNG medium-pressure vaporizer and a BOG compressor, wherein a liquid-phase outlet of the LNG storage tank is respectively connected with the LNG filling pump, the LNG plunger pump and the LNG booster pump;
The electrochemical reaction system comprises a solid-state oxidation cell stack and a solid-state oxidation electrolysis cell stack;
The heat exchange system is respectively connected with the air supply system and the purified water supply system, a natural gas outlet and an oxygen outlet of the heat exchange system are respectively connected with the solid-state oxidation cell stack, the solid-state oxidation cell stack outputs direct current to the power supply and storage system, the power supply and storage system supplies the direct current to the solid-state oxidation electrolytic cell stack, a water-containing hydrogen outlet of the solid-state oxidation electrolytic cell stack is connected with the hydrogen filling system, and an oxygen outlet of the solid-state oxidation electrolytic cell stack is connected with the heat exchange system; a steam outlet of the heat exchange system is connected with the solid oxidation electrolytic cell stack; an oxygen outlet of the heat exchange system is connected with a tail gas treatment system, and a tail gas outlet of the solid-state oxidation battery stack is sequentially connected with the heat exchange system and the tail gas treatment system.
compared with the prior art, the utility model has the positive effects that: the utility model discloses a liquefied natural gas is as SOFC starting fuel, can provide stable power, heat source to can constitute coupling electric power system and finally utilize SOEC brineelectrolysis hydrogen manufacturing with on-the-spot wind energy, light energy distributed power generation equipment, the utility model discloses compare with traditional single energy electrolytic hydrogen technique, provided the natural power fluctuation when relying on SOFC electricity generation to supply wind energy, the electricity generation by-product used heat to maintain reaction temperature's technical route, realized comprehensive energy high efficiency utilization, the automobile energy comprehensive supply of LNG, CNG, electricity, hydrogen can be realized to this device, is one of the feasible construction mode of following oil gas electricity hydrogen comprehensive power station. The system principle can also be used in large-scale hydrogen production and hydrogen liquefaction plants.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic diagram of a gas-electricity-hydrogen integrated energy supply system.
Detailed Description
A gas-electricity-hydrogen comprehensive energy supply system comprises an LNG storage and fuel supply system, an air supply system, a purified water supply system, a power supply and storage system, an electrochemical reaction system, a heat exchange system, an LNG filling system, a CNG filling system, a hydrogen filling system and a tail gas treatment system. As shown in fig. 1, the main apparatus includes: the LNG unloading equipment comprises LNG unloading equipment 1, an LNG storage tank 2, an LNG filling pump 3, an LNG plunger pump 4, an LNG booster pump 5, an LNG high-pressure vaporizer 6, an LNG low-pressure vaporizer 7, a CNG sequence control panel 8, a CNG gas storage well 9, a CNG gas filling machine 10, an LNG filling machine 11, a BOG compressor 12, a solid oxide cell stack 13, a solid oxide cell stack 14, a power conversion device 15, a power grid power supply access device 16, a distributed light energy power generation device 17, a distributed wind energy power generation device 18, a charging pile 19, a heat exchange device 20, a tail gas combustor 21, a diffusing pipe 22, an air compressor 23, a water purification processing device 24, a hydrogen dehydration device 25, a hydrogen buffer tank 26, a hydrogen compressor 27, a high-pressure hydrogen sequence 28, a high-pressure hydrogen gas storage well 29 and a high-pressure.
In particular, the amount of the solvent to be used,
1) The LNG storage and fuel supply system is composed of LNG unloading equipment 1, an LNG storage tank 2, an LNG filling pump 3, an LNG plunger pump 4, an LNG booster pump 5, an LNG high-pressure vaporizer 6, an LNG medium-pressure vaporizer 7 and a BOG compressor 12.
The LNG carrier loads LNG into the LNG storage tank 2 through a pipeline by the LNG unloading apparatus 1 to store fuel; the liquid phase outlet of the LNG storage tank 2 can be connected with the inlet of the LNG filling pump 3 through a pipeline, and the outlet of the LNG filling pump 3 is connected with the LNG filling machine 11 through a pipeline, so that the LNG filling problem is solved.
the liquid phase export of LNG storage tank 2 can be connected the entry of LNG plunger pump 4 by the pipeline, and the export of LNG plunger pump 4 passes through the pipeline and links to each other with LNG high pressure vaporizer 6 and gasifies LNG into CNG, and 6 export pipelines of LNG high pressure vaporizer link to each other with CNG filling system, solve the CNG gas filling problem.
The liquid phase export of LNG storage tank 2 can connect the entry of LNG booster pump 5 by the pipeline, and the export of LNG booster pump 5 passes through the pipeline and links to each other 7 LNG gasification to the medium-pressure natural gas with LNG. The Gas phase outlet of the LNG storage tank 2 is connected to the BOG compressor 12 through a pipeline, and BOG (Boil Off Gas flash Gas, static evaporation generated during static storage of LNG) pressurized by the BOG compressor 12 is mixed with the medium-pressure natural Gas at the outlet of the LNG medium-pressure gasifier 7 through a pipeline and enters the electrochemical reaction system.
wherein:
The LNG offloading equipment 1 may be an offloading arm, a special hose, etc.; the LNG storage tank 2 can be storage equipment such as a vacuum powder heat-insulating tank, a high-vacuum winding heat-insulating bottle, a single-capacity tank, a full-capacity tank and the like; the LNG filling pump 3 can be an LNG immersed pump, an LNG barrel pump, an LNG centrifugal pump and the like; the LNG booster pump 5 can be an LNG immersed pump, an LNG barrel pump, an LNG centrifugal pump and the like; the LNG high-pressure vaporizer 6 and the LNG low-pressure vaporizer 7 may be air temperature vaporizers or medium heat exchangers.
2) An air supply system is formed by the air compressor 23 and accessories thereof, and raw material air is compressed by the air compressor, heated to a set temperature by a heat exchange device and then sent to the electrochemical reaction system to participate in reaction.
air is sucked into the air compressor 23 from the atmosphere, the pressurized air is divided into two streams, and the first stream of air is heated by the heat exchange system through a pipeline and then is sent to the air inlet of the solid oxide cell stack 13 of the electrochemical reaction system to participate in the electrochemical reaction. The second stream of air is sent to a tail gas combustion furnace 21 to be combusted with tail gas generated by the solid oxide cell stack 13, and the high-temperature tail gas after combustion provides heat for the reaction.
Wherein:
The air compressor 23 may be a screw compressor, a reciprocating compressor, or the like.
3) The water purification treatment device 24 and the accessories thereof form a purified water supply system, and the deionized purified water obtained after the ordinary tap water is treated by the water purification treatment device is sent to the electrochemical reaction system to take part in the reaction;
After impurities in tap water are deeply removed by the water purification treatment device 24, the tap water is heated into steam by the heat exchange system through a pipeline and then is sent to a steam inlet of the electrochemical reaction system to participate in electrochemical reaction.
Wherein:
The water purification treatment device 24 may be an on-site desalinated water device; or a purified water storage and supply device which is used for distributing after water treatment is carried out from the outside.
4) The power supply and storage system is composed of a power supply conversion device 15, a power grid power supply access device 16, a distributed light energy power generation device 17, a distributed wind energy power generation device 18, a charging pile 19 and the like, electric energy is mainly provided by a solid oxide battery, the power grid power supply access device, the distributed light energy power generation device, the distributed wind energy power generation device and the like, and the electric energy is converted into a charging power supply and a solid oxidation electrolytic cell reaction power supply by the power supply conversion device.
the electric power supplied or produced by external devices such as the grid power supply access device 16, the distributed light energy power generation device 17, the distributed wind energy power generation device 18 and the like is converted into electric current suitable for charging the charging pile 19 and electrolyzing water vapor in the electrochemical reaction system through the power supply conversion device 15.
Wherein:
fill electric pile 19 can continuously connect conventional battery, carry out the electric energy storage, carry out electric power back transmission when necessary.
5) The solid oxide cell stack 13 and the solid oxide electrolytic cell stack 14 jointly form an electrochemical reaction system, the solid oxide cell stack generates direct current through the electrochemical reaction of fuel gas and air, the direct current is sent to a power supply and storage system, the direct current provided by the power supply and storage system is received, and purified water provided by a purified water supply system is used for generating hydrogen and oxygen by electrolyzing water by the solid oxide electrolytic cell stack; hydrogen is sent to a hydrogen filling system, oxygen is sent back to the solid oxide battery to participate in electrochemical reaction, and redundant oxygen is sent to a tail gas treatment system to be combusted and then discharged.
The high-temperature natural gas and high-temperature air/oxygen sent by the heat exchange system generate electrochemical reaction in the solid oxide cell stack 13, and the produced direct current is connected to the power supply and storage system through a cable and is converted into current suitable for charging the charging pile 19 and electrolyzing water vapor in the electrochemical reaction system.
the high temperature steam from the heat exchange system and the current from the power storage system produce an electrochemical reaction in the solid oxide cell stack 14 to produce hydrogen and oxygen containing water. Wherein the water-containing hydrogen is sent to a hydrogen filling system for filling a hydrogen energy vehicle, and the oxygen can be returned to participate in the power generation reaction of the solid oxide cell stack 13 or sent to a tail gas treatment system for burning or discharging.
6) The heat exchange system is composed of the heat exchange device 20 and its accessories, and its main function is to recover the heat of the exhausted tail gas and the externally transported hydrogen, and to heat the fuel gas, oxygen, air, etc. participating in the reaction, and to maintain the reaction temperature of the electrochemical reaction system.
the heat exchange device mainly comprises a plurality of heat exchangers, realizes the preheating of fuel gas, air, oxygen and steam which participate in the reaction, and simultaneously recovers the heat of tail gas combustion.
7) The LNG refueling system is composed of the LNG refueling machine 11 and its accessories, and is mainly used for LNG from the LNG storage and fuel supply system and refueling the LNG-fueled electric vehicle.
The LNG carrier loads LNG into the LNG storage tank 2 through a pipeline by the LNG unloading apparatus 1 to store fuel; the liquid phase outlet of the LNG storage tank 2 can be connected with the inlet of the LNG filling pump 3 through a pipeline, and the outlet of the LNG filling pump 3 is connected with the LNG filling machine 11 through a pipeline, so that the LNG filling problem is solved.
8) The CNG filling system is composed of a CNG sequence control disc 8, a CNG gas storage well 9 and a CNG gas filling machine 10, and is mainly used for filling CNG from the LNG storage and fuel supply system into the CNG gas storage well through the sequence control disc according to pressure levels and filling CNG into a CNG fuel power automobile through the CNG gas storage well.
The liquid phase export of LNG storage tank 2 can connect the entry of LNG plunger pump 4 by the pipeline, and the export of LNG plunger pump 4 passes through the pipeline and links to each other with LNG high pressure vaporizer 6 and gasifies LNG into CNG, and 6 export pipelines of LNG high pressure vaporizer link to each other with CNG sequence control dish 8, and sequence control dish 8 distributes CNG to CNG gas storage well 9 with highly compressed CNG according to the pressure level of difference. And finally, the CNG filling machine 10 fills the CNG reserved in the gas storage well into the CNG fuel automobile.
9) The hydrogen filling system is composed of a hydrogen dehydration device 25, a hydrogen buffer tank 26, a hydrogen compressor 27, a high-pressure hydrogen sequence control plate 28, a high-pressure hydrogen storage well 29 and a high-pressure hydrogen filling machine 30, and mainly has the main effects that hydrogen from an electrochemical reaction system is dehydrated through a drying tower, is pressurized through the hydrogen buffer tank and the hydrogen compressor, is injected into the hydrogen storage well according to the sequence control plate in a pressure level mode, and is filled into a hydrogen fuel power automobile through the hydrogen storage well.
The aqueous hydrogen generated by the solid oxide electrolytic cell stack 14 of the electrochemical reaction system is sent to a hydrogen dehydration device 25 for dehydration, and then is connected to a hydrogen buffer tank 26 by a pipeline, the buffered hydrogen is connected to a hydrogen compressor 27 by a pipeline to be pressurized into high-pressure hydrogen, the outlet pipeline of the hydrogen compressor 27 is connected with a high-pressure hydrogen sequence control panel 28, and the high-pressure hydrogen sequence control panel 28 distributes the high-pressure hydrogen to a high-pressure hydrogen storage well 29 according to different pressure levels. And finally, the high-pressure hydrogen gas filling machine 30 fills the high-pressure hydrogen gas stored in the gas storage well into the hydrogen fuel automobile.
10) the tail gas combustor 21 and the diffusing pipe 22 jointly form a tail gas treatment system (heat recovery system), fuel tail gas and air/oxygen tail gas generated by the solid-state oxidation cell stack are combusted in a tail gas combustion furnace, and the generated combustion tail gas is subjected to heat energy recovery through a heat exchange system and then is discharged outwards.
The high-temperature fuel tail gas generated by the solid oxide cell stack 13 of the electrochemical reaction system is mixed with fresh air (or oxygen) and then communicated to the tail gas combustor 21 through a pipeline. The tail gas combustor 21 generates high-temperature combustion tail gas after combustion, and the combustion tail gas which is connected to a heat exchange system through a pipeline and recovers heat is discharged to the atmosphere through a diffusing pipe 22.
The utility model also provides an adopt new forms of energy such as LNG, wind, light to realize the comprehensive method of supplying with of gas electricity hydrogen, including following content:
Firstly, low-temperature LNG is gasified and then is conveyed to a solid oxidation cell stack 13 and a solid oxidation electrolysis cell stack 14 to generate electrochemical reaction, and finally electric power and hydrogen are generated:
LNG of about 0.1MPa stored in an LNG storage tank 2 is pressurized to medium pressure by an LNG booster pump 5, then is converted into gaseous natural gas by a gasifier 7, and then is heated to 600-1000 ℃ by a natural gas heater, is injected with steam (generated by heating purified water by a heat exchange device 20) and is humidified, and then is sent to a solid oxide cell stack 13 to take part in reaction; the air compressor 23 filters the air and compresses the air to a medium pressure slightly higher than the fuel gas end, and then the air is heated to a reaction temperature of 600-1000 ℃ by the heat exchange device 20 and then sent to the solid oxide cell stack 13 to react to generate current and tail gas; the current generated by the solid oxide cell stack 13 can be converted by the power conversion device 15 and then output to the charging pile or sent to the solid oxide electrolytic cell stack 14 to react to generate oxygen and hydrogen; tail gas generated by the reaction of the solid oxide cell stack 13 enters a tail gas combustor 21 to be mixed and further combusted, the combusted combustion tail gas is subjected to gradual heat energy recovery through a heat exchange device 20 to provide heat energy for electrolytic water, and the tail gas is finally discharged to a diffusing pipe 22.
secondly, solving the problems of wind power generation and light energy generation fluctuation:
external wind power generation and light power generation can utilize the solid oxidation electrolytic cell stack 14 to decompose injected steam to generate water-containing hydrogen and oxygen, but under the influence of the environment, the generation of wind power generation and light power generation has natural volatility and can cause unstable operation of the solid oxidation electrolytic cell stack, so that the problem of power supply fluctuation can be solved by utilizing fuel cell power generation, a power grid and the like to supplement electrolysis.
Thirdly, accurately controlling the reaction of the solid oxide cell stack and the solid oxidation electrolytic cell stack:
The temperature and pressure of inlet fuel gas, air and steam are controlled by monitoring the internal temperature and pressure of the solid oxide cell stack and the solid oxide electrolytic cell stack to realize accurate control of reaction, and meanwhile, heat is obtained through tail gas combustion and the fuel cell stack is recharged for heat supplement.
The utility model discloses a theory of operation is:
The LNG delivered by transportation is firstly unloaded into a storage tank (about 0.1MPa pressure storage), and the LNG in the storage tank can be combined with various energy sources such as a power grid, light energy, wind energy and the like through 4 processes to solve the problem of comprehensive supply of vehicle LNG, CNG, electric energy and hydrogen energy.
Scheme 1: the LNG fuel is pressurized to the medium pressure (about 1 MPa) by an LNG filling pump and then is filled into an LNG fuel automobile;
And (2) a flow scheme: the LNG is pressurized to high pressure (about 20 MPa) by an LNG plunger pump, then is gasified into CNG by a high-pressure gasifier, and then is used for filling gas into a CNG automobile by a CNG filling system;
And (3) a flow path: the LNG booster pump is used for boosting the pressure to a medium pressure (about 0.3 MPa), then the LNG booster pump is used for converting the LNG to gaseous natural gas through the medium-pressure LNG gasifier, then the normal-temperature natural gas is heated to a reaction temperature (600-1000 ℃) through the heat exchange system, steam with a certain proportion is injected for humidification, and then the natural gas is sent to the solid oxide cell stack to generate electrochemical reaction with air provided by the air compressor and oxygen generated by the solid oxide electrolytic cell, and electric energy and high-temperature tail gas are generated;
The electric energy generated by the solid oxide cell stack 13 can form a coupling power system with on-site wind energy power supply, light energy power supply and power grid power supply to charge the battery.
The high-temperature tail gas generated by the solid oxide cell pile 13 preheats fuel gas, air, oxygen, steam and the like which participate in the reaction, and the heat energy is recycled step by step.
And (4) a flow chart: the electric energy generated by the solid oxide cell pile can form a coupling power system with on-site wind energy power supply, light energy power supply and power grid power supply, and the output current decomposes water vapor through the solid oxide electrolytic cell to form hydrogen and oxygen containing water. The hydrous hydrogen can become fuel hydrogen with excellent performance after dehydration and pressurization, and is used for filling hydrogen fuel automobiles.

Claims (6)

1. A gas-electricity-hydrogen comprehensive energy supply system is characterized in that: including LNG storage and fuel supply system, power supply and storage system, electrochemical reaction system, heat transfer system, LNG filling system, CNG filling system, hydrogen filling system and tail gas processing system, wherein:
the LNG storage and fuel supply system comprises an LNG storage tank, an LNG filling pump, an LNG plunger pump, an LNG booster pump, an LNG high-pressure vaporizer, an LNG medium-pressure vaporizer and a BOG compressor, wherein a liquid-phase outlet of the LNG storage tank is respectively connected with the LNG filling pump, the LNG plunger pump and the LNG booster pump;
The electrochemical reaction system comprises a solid-state oxidation cell stack and a solid-state oxidation electrolysis cell stack;
the heat exchange system is respectively connected with the air supply system and the purified water supply system, a natural gas outlet and an oxygen outlet of the heat exchange system are respectively connected with the solid-state oxidation cell stack, the solid-state oxidation cell stack outputs direct current to the power supply and storage system, the power supply and storage system supplies the direct current to the solid-state oxidation electrolytic cell stack, a water-containing hydrogen outlet of the solid-state oxidation electrolytic cell stack is connected with the hydrogen filling system, and an oxygen outlet of the solid-state oxidation electrolytic cell stack is connected with the heat exchange system; a steam outlet of the heat exchange system is connected with the solid oxidation electrolytic cell stack; an oxygen outlet of the heat exchange system is connected with a tail gas treatment system, and a tail gas outlet of the solid-state oxidation battery stack is sequentially connected with the heat exchange system and the tail gas treatment system.
2. The gas-electricity-hydrogen comprehensive energy supply system according to claim 1, characterized in that: the LNG storage tank is a vacuum powder heat-insulating tank, a high-vacuum winding heat-insulating bottle, a single-capacity tank or a full-capacity tank; the LNG filling pump and the LNG booster pump are an LNG immersed pump, an LNG barrel bag pump or an LNG centrifugal pump; the LNG high-pressure vaporizer and the LNG low-pressure vaporizer are air temperature vaporizers or medium heat exchangers.
3. the gas-electricity-hydrogen comprehensive energy supply system according to claim 1, characterized in that: the power supply and storage system comprises a power supply conversion device, and a power grid power supply access device, a distributed light energy power generation device, a distributed wind energy power generation device and a charging pile which are respectively connected with the power supply conversion device.
4. The gas-electricity-hydrogen comprehensive energy supply system according to claim 1, characterized in that: the CNG filling system comprises a CNG sequence control disc, a CNG gas storage well and a CNG gas filling machine, wherein the sequence control disc distributes high-pressure CNG to the CNG gas storage well according to different pressure levels.
5. The gas-electricity-hydrogen comprehensive energy supply system according to claim 1, characterized in that: the hydrogen filling system comprises a hydrogen dehydration device, a hydrogen buffer tank, a hydrogen compressor, a high-pressure hydrogen sequence control disc, a high-pressure hydrogen storage well and a high-pressure hydrogen filling machine which are sequentially connected.
6. The gas-electricity-hydrogen comprehensive energy supply system according to claim 1, characterized in that: the tail gas treatment system comprises a tail gas combustor and a diffusing pipe, and a combustion tail gas outlet of the tail gas combustor is sequentially connected with the heat exchange system and the diffusing pipe.
CN201920470187.XU 2019-04-09 2019-04-09 gas-electricity-hydrogen comprehensive energy supply system Active CN209782244U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109882737A (en) * 2019-04-09 2019-06-14 中国石油工程建设有限公司 A kind of pneumoelectric hydrogen comprehensive energy supply system and method
CN112009697A (en) * 2020-09-02 2020-12-01 成都精智艺科技有限责任公司 Efficient LNG ship power supply system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109882737A (en) * 2019-04-09 2019-06-14 中国石油工程建设有限公司 A kind of pneumoelectric hydrogen comprehensive energy supply system and method
CN109882737B (en) * 2019-04-09 2024-01-26 中国石油集团工程股份有限公司 Gas-electricity-hydrogen comprehensive energy supply system and method
CN112009697A (en) * 2020-09-02 2020-12-01 成都精智艺科技有限责任公司 Efficient LNG ship power supply system and method

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