CN214221410U - Co-production system for producing hydrogen and desalinated water by utilizing geothermal power generation - Google Patents
Co-production system for producing hydrogen and desalinated water by utilizing geothermal power generation Download PDFInfo
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- CN214221410U CN214221410U CN202023032828.5U CN202023032828U CN214221410U CN 214221410 U CN214221410 U CN 214221410U CN 202023032828 U CN202023032828 U CN 202023032828U CN 214221410 U CN214221410 U CN 214221410U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The invention discloses a cogeneration system for producing hydrogen and desalinating water by utilizing geothermal power generation, which comprises a geothermal well, a recharge well, a submersible pump, a flash tank, a steam turbine, a generator, an electrolytic bath, a condenser, a fresh water storage tank, a first power pump, a second power pump, a hot water pipeline, a tail water pipeline, a cooling water pipeline, a steam pipeline, an exhaust pipeline and a cable, wherein the geothermal well is connected with the recharge well; the invention can utilize underground water to generate electricity and can produce hydrogen by electrolyzing part of underground water for combined production, not only simplifies and rationalizes the geothermal power generation system and the desalination water system used at present, but also secondarily utilizes the geothermal water source, thereby further improving the utilization rate of the geothermal water source and better meeting the production requirements of energy conservation and emission reduction.
Description
Technical Field
The utility model relates to a geothermal resource utilizes technical field, concretely relates to utilize cogeneration system of geothermal power generation hydrogen manufacturing and desalination.
Background
Geothermal resources are abundant in many areas of China, and particularly hydrothermal geothermal resources are abundant in North China.
At present, the application of domestic geothermal utilization technology is very common, for example, chinese patent CN109607476A discloses a geothermal-driven hydrogen-heat cogeneration system for methanol reforming hydrogen production, which comprises a geothermal heating unit, a reforming hydrogen production unit and a combustion power generation unit connected with a geothermal well. The whole system directly adopts terrestrial heat as a heat source to heat the working medium, the heated working medium provides heat for the methanol reforming hydrogen production reaction, certain heat energy is still provided after the heat energy is released by the working medium for heating and providing household hot water, and unreacted methanol is combusted in the combustion power generation unit to generate power so as to provide power for users.
The triple co-generation system utilizes the geothermal energy methanol to reform and prepare hydrogen and simultaneously generates electricity and provides domestic hot water for users, has strong practicability and high energy utilization rate, is suitable for small and miniature application occasions in regions with abundant geothermal resources, and meets various energy utilization requirements of users;
however, the above design uses geothermal heating units and combustion power generation units to produce, which makes the whole process quite complicated and the production cost is high, and the design can only be used for small-scale production and cannot be used for large-scale production.
In addition, chinese patent CN102398950A discloses a large geothermal multistage seawater evaporation device and method for obtaining fresh water, wherein includes a first-stage seawater evaporation, filtration and dilution device, a second-stage seawater evaporation, filtration and dilution device, a third-stage seawater evaporation, filtration and dilution device, a fourth-stage seawater evaporation, filtration and dilution device, a water diversion trench, a seawater filtration tank, a power supply system, a precipitated impurity sewage pump, and a fresh water tank, which solves the problems of high cost and small scale of the conventional distillation or purification filtration method.
Although the method for desalinating seawater can reasonably utilize geothermal heat, the whole desalination step is quite complex and the production period is longer;
therefore, the utility model discloses want to design one kind and can utilize groundwater to generate electricity to carry out the joint production system of electrolytic hydrogen manufacturing with partial groundwater, not only simplify, rationalize present used geothermal power generation system and desalination system, carried out reutilization to the geothermal water source moreover, thereby further improve geothermal water source's utilization ratio, accord with energy saving and emission reduction's joint production demand more.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an utilize cogeneration system of geothermal power generation hydrogen manufacturing and desalination to the defect that prior art exists, its simple structure, reasonable not only simplifies, rationalizes present used geothermal power generation system and desalination system, has carried out the reutilization to the geothermal water source moreover to further improve the utilization ratio of geothermal water source, accord with energy saving and emission reduction's joint production demand more.
The technical scheme of the utility model is that:
a cogeneration system for producing hydrogen and desalinating water by utilizing geothermal power generation comprises a geothermal well, a recharging well, a submersible pump, a flash tank, a steam turbine, a generator, an electrolytic bath, a condenser, a fresh water storage tank, a first power pump, a second power pump, a hot water pipeline, a tail water pipeline, a cooling water pipeline, a steam pipeline, an exhaust pipeline and a cable;
the system comprises a submerged pump, a first power pump, a second power pump, a flow regulating valve, a first power pump, a second power pump, a flow regulating valve, a hot water pipeline, a first branch and a second branch, wherein the submerged pump is positioned in a geothermal well, a water outlet of the submerged pump is communicated with a water inlet of a flash tank, a water outlet of the flash tank is communicated with a water inlet of the first power pump through a tail water pipeline, a first branch and the second branch are connected in parallel at a water outlet of the first power pump, the first branch is communicated with a recharging well, the second branch is communicated with an electrolytic bath, and the second branch is provided with the flow regulating valve;
the top of the flash tank is provided with a steam outlet, the steam outlet is communicated with a steam inlet of a steam turbine through a steam pipeline, a steam outlet of the steam turbine is communicated with a heat source end inlet of a condenser through an exhaust pipeline, a heat source end outlet of the condenser is communicated with a fresh water storage tank, and a cold source end of the condenser and a second power pump are connected in series on a cooling water pipeline;
the power output end of the steam turbine is connected with the power input end of the generator, and the power output end of the generator is electrically connected with the power input end of the electrolytic cell through a cable.
Preferably, a transformer is connected in series on a cable between the generator and the electrolytic cell.
Preferably, the top of the electrolytic cell is provided with a gas guide hood, and the top of the gas guide hood is provided with a hydrogen outlet.
Preferably, the hydrogen outlet is connected to a hydrogen storage vessel via a conduit.
Preferably, the hydrogen storage vessel is a pressure tank.
Preferably, the hot water pipeline and the tail water pipeline are wrapped with heat insulation layers.
Preferably, a horizontal well communicated with the geothermal well is arranged between the bottoms of the geothermal well and the recharge well.
A co-production method of a co-production system for producing hydrogen and desalinating water by utilizing geothermal power generation comprises the following steps:
1) geothermal water in the geothermal well is pumped into a flash tank through a submersible pump;
2) heating a part of geothermal water in a flash tank to form water vapor, discharging the other part of geothermal water in a tail water form through a tail water pipeline, and dividing the geothermal water into two branches;
3) the first branch is refluxed to the recharging well, and the second branch is used for electrolytic hydrogen production of the electrolytic bath;
4) the water vapor generated in the flash tank enters a steam turbine through a steam pipeline and pushes the steam turbine to work;
5) the steam turbine drives the generator to generate electricity, and part of the electric energy generated by the generator is supplied to the electrolytic cell for use;
6) the water vapor pushes the steam turbine to work, then enters the condenser through the exhaust pipeline to be liquefied, and finally is collected in a fresh water container for life and production use.
Compared with the prior art, the utility model, have following advantage:
the utility model has simple and reasonable structure, the geothermal water is vaporized into the water vapor through the flash tank, then the steam turbine is pushed to drive the generator to work, and the electric energy generated by the generator is used for hydrogen production of the electrolytic cell;
meanwhile, the produced water used in the electrolytic cell is geothermal water, so that the geothermal water is secondarily utilized, and the combined production of electric energy and hydrogen production is realized;
in addition, water vapor promotes the steam turbine work back, gets into the condenser liquefaction through exhaust pipe, forms fresh water to for production or life provide abundant fresh water resource, and then make the utility model discloses form a more reasonable, more complete ecological circle.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1. the system comprises a geothermal well, 2, a recharge well, 3, a submersible pump, 4, a hot water pipeline, 5, a flash tank, 6, a steam pipeline, 7, a steam turbine, 8, a generator, 9, a cable, 10, a transformer, 11, a hydrogen storage container, 12, a gas guide cover, 13, an electrolytic cell, 14, a second branch circuit, 15, an exhaust pipeline, 16, a condenser, 17, a cooling water pipeline, 18, a second power pump, 19, a fresh water storage tank, 20, a tail water pipeline, 21, a first power pump, 22, a first branch circuit, 23, a horizontal well, 24 and a flow regulating valve.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1
Referring to fig. 1, a cogeneration system for producing hydrogen and desalinating water by using geothermal power generation comprises a geothermal well 1, a recharge well 2, a submersible pump 3, a flash tank 5, a steam turbine 7, a generator 8, an electrolytic bath 13, a condenser 16, a fresh water storage tank 19, a first power pump 21, a second power pump 18, a hot water pipeline 4, a tail water pipeline 20, a cooling water pipeline 17, a steam pipeline 6, an exhaust pipeline 15 and a cable 9.
The submersible pump 3 is positioned in the geothermal well 1, and a water outlet of the submersible pump 3 is communicated with a water inlet of the flash tank 5 through a hot water pipeline 4.
The water outlet of the flash tank 5 is communicated with the water inlet of a first power pump 21 through a tail water pipeline 20, and the water outlet of the first power pump 21 is connected with a first branch 22 and a second branch 14 in parallel.
Wherein, the first branch 22 is communicated with the recharging well 2, the second branch 14 is communicated with the electrolytic bath 13, and the second branch 14 is provided with a flow regulating valve 24.
The top of the flash tank 5 is provided with a steam outlet which is communicated with a steam inlet of a steam turbine 7 through a steam pipeline 6.
The steam outlet of the steam turbine 7 is communicated with the inlet of the heat source end of the condenser 16 through the exhaust pipeline 15, the outlet of the heat source end of the condenser 16 is communicated with the fresh water storage tank 19, the cold source end of the condenser 16 and the second power pump 18 are connected in series on the cooling water pipeline 17, and the condenser 16 adopts a dividing wall type heat exchanger.
The power output end of the steam turbine 7 is connected with the power input end of the generator 8, and the power output end of the generator 8 is electrically connected with the power input end of the electrolytic cell 13 through a cable 9.
The co-production method using the system comprises the following steps:
(1) geothermal water in the geothermal well 1 is pumped into a flash tank 5 through a submersible pump 3, one part of the geothermal water is heated in the flash tank 5 to form water vapor, the other part of the geothermal water is discharged in a tail water form through a tail water pipeline 20 and is divided into two branches, wherein a first branch 22 flows back to the recharging well 2, and a second branch 14 is used for electrolytic hydrogen production in an electrolytic tank 13;
(2) the steam generated in the flash tank 5 enters a steam turbine 7 through a steam pipeline 6, the steam turbine 7 is pushed to work, the steam turbine 7 drives a generator 8 to generate electricity, one part of the electric energy generated by the generator 8 is supplied to an electrolytic cell 13, and the other part of the electric energy is supplied to other electric equipment;
(3) the water vapor pushes the steam turbine 7 to work, then enters the condenser 16 through the exhaust pipeline 15 to be liquefied, and finally is collected in a fresh water container for life and production.
In production:
the geothermal water in the geothermal well 1 is selected to have the temperature of 91 ℃ and the flow rate of 200t/h, the flash evaporation temperature is 71 ℃, the geothermal water at the temperature of 91 ℃ enters a flash evaporator 5 to be subjected to flash evaporation, the amount of the steam which is flashed off is 7.2t/h, the temperature of the geothermal tail water which is not flashed off is 71 ℃, and the flow rate is 192.8 t/h;
the output power of the generator 8 is 300kW, the fresh water yield is 7.2t/h, wherein 60% of electricity is 180kW for electrolytic hydrogen production, and the hydrogen production per hour is about 30 cubic meters (standard working condition).
The output electric power of the whole system is 120kW, the hydrogen production capacity is 30 Nm3/h, and the fresh water production capacity is 7.2 t/h.
The utility model has simple and reasonable structure, geothermal water is vaporized into water vapor through the flash tank 5, then the water vapor pushes the steam turbine 7 to drive the generator 8 to work, and the electric energy generated by the generator 8 is used for hydrogen production of the electrolytic bath 13;
meanwhile, the produced water used in the electrolytic cell 13 comes from geothermal water, so that the geothermal water is secondarily utilized, and the combined production of electric energy and hydrogen production is realized;
in addition, water vapor promotes steam turbine 7 work back, forms fresh water through exhaust pipe 15 entering 16 liquefaction of condenser to for production or life provide abundant fresh water resource, and then make the utility model discloses form a more reasonable, more complete ecological cycle.
Example 2
Referring to fig. 1, a cogeneration system for producing hydrogen and desalinating water by using geothermal power generation comprises a geothermal well 1, a recharge well 2, a submersible pump 3, a flash tank 5, a steam turbine 7, a generator 8, an electrolytic bath 13, a condenser 16, a fresh water storage tank 19, a first power pump 21, a second power pump 18, a hot water pipeline 4, a tail water pipeline 20, a cooling water pipeline 17, a steam pipeline 6, an exhaust pipeline 15 and a cable 9.
The submersible pump 3 is positioned in the geothermal well 1, and a water outlet of the submersible pump 3 is communicated with a water inlet of the flash tank 5 through a hot water pipeline 4.
The water outlet of the flash tank 5 is communicated with the water inlet of a first power pump 21 through a tail water pipeline 20, and the water outlet of the first power pump 21 is connected with a first branch 22 and a second branch 14 in parallel.
Wherein, the first branch 22 is communicated with the recharging well 2, the second branch 14 is communicated with the electrolytic bath 13, and the second branch 14 is provided with a flow regulating valve 24.
The top of the flash tank 5 is provided with a steam outlet which is communicated with a steam inlet of a steam turbine 7 through a steam pipeline 6.
The steam outlet of the steam turbine 7 is communicated with the inlet of the heat source end of the condenser 16 through the exhaust pipeline 15, the outlet of the heat source end of the condenser 16 is communicated with the fresh water storage tank 19, the cold source end of the condenser 16 and the second power pump 18 are connected in series on the cooling water pipeline 17, and the condenser 16 adopts a dividing wall type heat exchanger.
The power output end of the steam turbine 7 is connected with the power input end of the generator 8, and the power output end of the generator 8 is electrically connected with the power input end of the electrolytic cell 13 through a cable 9.
As a further preferable aspect of the present embodiment:
a transformer 10 is connected in series on the cable 9 between the generator 8 and the electrolytic bath 13.
In this embodiment, the voltage can be increased by adding the transformer 10, and the production efficiency of the electrolytic bath 13 can be further improved.
Example 3
Referring to fig. 1, a cogeneration system for producing hydrogen and desalinating water by using geothermal power generation comprises a geothermal well 1, a recharge well 2, a submersible pump 3, a flash tank 5, a steam turbine 7, a generator 8, an electrolytic bath 13, a condenser 16, a fresh water storage tank 19, a first power pump 21, a second power pump 18, a hot water pipeline 4, a tail water pipeline 20, a cooling water pipeline 17, a steam pipeline 6, an exhaust pipeline 15 and a cable 9.
The submersible pump 3 is positioned in the geothermal well 1, and a water outlet of the submersible pump 3 is communicated with a water inlet of the flash tank 5 through a hot water pipeline 4.
The water outlet of the flash tank 5 is communicated with the water inlet of a first power pump 21 through a tail water pipeline 20, and the water outlet of the first power pump 21 is connected with a first branch 22 and a second branch 14 in parallel.
Wherein, the first branch 22 is communicated with the recharging well 2, the second branch 14 is communicated with the electrolytic bath 13, and the second branch 14 is provided with a flow regulating valve 24.
The top of the flash tank 5 is provided with a steam outlet which is communicated with a steam inlet of a steam turbine 7 through a steam pipeline 6.
The steam outlet of the steam turbine 7 is communicated with the heat source end inlet of the condenser 16 through the exhaust pipeline 15, the heat source end outlet of the condenser 16 is communicated with the fresh water storage tank 19, and the cold source end of the condenser 16 and the second power pump 18 are connected in series on the cooling water pipeline 17.
The power output end of the steam turbine 7 is connected with the power input end of the generator 8, and the power output end of the generator 8 is electrically connected with the power input end of the electrolytic cell 13 through a cable 9.
As a further preferable aspect of the present embodiment:
the top of the electrolytic cell 13 is provided with a gas guide hood 12, the top of the gas guide hood 12 is provided with a hydrogen outlet, the hydrogen outlet is connected with a hydrogen storage container 11 through a conduit, and the hydrogen storage container 11 is a pressure tank.
This embodiment is through increasing air guide cover 12, and the collection of the hydrogen of being convenient for more is saved to the overhead tank, and this not only can satisfy hydrogen and produce the demand of usefulness promptly, but also can store abundant hydrogen resource.
Example 4
Referring to fig. 1, a cogeneration system for producing hydrogen and desalinating water by using geothermal power generation comprises a geothermal well 1, a recharge well 2, a submersible pump 3, a flash tank 5, a steam turbine 7, a generator 8, an electrolytic bath 13, a condenser 16, a fresh water storage tank 19, a first power pump 21, a second power pump 18, a hot water pipeline 4, a tail water pipeline 20, a cooling water pipeline 17, a steam pipeline 6, an exhaust pipeline 15 and a cable 9.
The submersible pump 3 is positioned in the geothermal well 1, and a water outlet of the submersible pump 3 is communicated with a water inlet of the flash tank 5 through a hot water pipeline 4.
The water outlet of the flash tank 5 is communicated with the water inlet of a first power pump 21 through a tail water pipeline 20, and the water outlet of the first power pump 21 is connected with a first branch 22 and a second branch 14 in parallel.
Wherein, the first branch 22 is communicated with the recharging well 2, the second branch 14 is communicated with the electrolytic bath 13, and the second branch 14 is provided with a flow regulating valve 24.
The top of the flash tank 5 is provided with a steam outlet which is communicated with a steam inlet of a steam turbine 7 through a steam pipeline 6.
The steam outlet of the steam turbine 7 is communicated with the heat source end inlet of the condenser 16 through the exhaust pipeline 15, the heat source end outlet of the condenser 16 is communicated with the fresh water storage tank 19, and the cold source end of the condenser 16 and the second power pump 18 are connected in series on the cooling water pipeline 17.
The power output end of the steam turbine 7 is connected with the power input end of the generator 8, and the power output end of the generator 8 is electrically connected with the power input end of the electrolytic cell 13 through a cable 9.
As a further preferable aspect of the present embodiment:
the hot water pipeline 4 and the tail water pipeline 20 are both wrapped with heat insulation layers.
This embodiment can reduce thermal loss through increasing the heat preservation insulating layer to improve thermal utilization ratio.
Example 5
Referring to fig. 1, a cogeneration system for producing hydrogen and desalinating water by using geothermal power generation comprises a geothermal well 1, a recharge well 2, a submersible pump 3, a flash tank 5, a steam turbine 7, a generator 8, an electrolytic bath 13, a condenser 16, a fresh water storage tank 19, a first power pump 21, a second power pump 18, a hot water pipeline 4, a tail water pipeline 20, a cooling water pipeline 17, a steam pipeline 6, an exhaust pipeline 15 and a cable 9.
The submersible pump 3 is positioned in the geothermal well 1, and a water outlet of the submersible pump 3 is communicated with a water inlet of the flash tank 5 through a hot water pipeline 4.
The water outlet of the flash tank 5 is communicated with the water inlet of a first power pump 21 through a tail water pipeline 20, and the water outlet of the first power pump 21 is connected with a first branch 22 and a second branch 14 in parallel.
Wherein, the first branch 22 is communicated with the recharging well 2, the second branch 14 is communicated with the electrolytic bath 13, and the second branch 14 is provided with a flow regulating valve 24.
The top of the flash tank 5 is provided with a steam outlet which is communicated with a steam inlet of a steam turbine 7 through a steam pipeline 6.
The steam outlet of the steam turbine 7 is communicated with the inlet of the heat source end of the condenser 16 through the exhaust pipeline 15, the outlet of the heat source end of the condenser 16 is communicated with the fresh water storage tank 19, the cold source end of the condenser 16 and the second power pump 18 are connected in series on the cooling water pipeline 17, and the condenser 16 adopts a dividing wall type heat exchanger.
The power output end of the steam turbine 7 is connected with the power input end of the generator 8, and the power output end of the generator 8 is electrically connected with the power input end of the electrolytic cell 13 through a cable 9.
As a further preferable aspect of the present embodiment:
and a horizontal well 23 communicated with the geothermal well 1 and the recharging well 2 is arranged between the bottoms of the geothermal well and the recharging well.
This embodiment can realize the quick circulation flow of geothermal well 1 and recharging well 2 through increasing horizontal well 23, makes the water of recharging carry out rapid heating up, and then better rational utilization to geothermal resources.
Claims (7)
1. A cogeneration system for producing hydrogen and desalinating water by utilizing geothermal power generation is characterized in that: the system comprises a geothermal well, a recharging well, a submersible pump, a flash tank, a steam turbine, a generator, an electrolytic bath, a condenser, a fresh water storage tank, a first power pump, a second power pump, a hot water pipeline, a tail water pipeline, a cooling water pipeline, a steam pipeline, an exhaust pipeline and a cable;
the system comprises a submerged pump, a first power pump, a second power pump, a flow regulating valve, a first power pump, a second power pump, a flow regulating valve, a hot water pipeline, a first branch and a second branch, wherein the submerged pump is positioned in a geothermal well, a water outlet of the submerged pump is communicated with a water inlet of a flash tank, a water outlet of the flash tank is communicated with a water inlet of the first power pump through a tail water pipeline, a first branch and the second branch are connected in parallel at a water outlet of the first power pump, the first branch is communicated with a recharging well, the second branch is communicated with an electrolytic bath, and the second branch is provided with the flow regulating valve;
the top of the flash tank is provided with a steam outlet, the steam outlet is communicated with a steam inlet of a steam turbine through a steam pipeline, a steam outlet of the steam turbine is communicated with a heat source end inlet of a condenser through an exhaust pipeline, a heat source end outlet of the condenser is communicated with a fresh water storage tank, and a cold source end of the condenser and a second power pump are connected in series on a cooling water pipeline;
the power output end of the steam turbine is connected with the power input end of the generator, and the power output end of the generator is electrically connected with the power input end of the electrolytic cell through a cable.
2. The cogeneration system for producing hydrogen and desalinating water by utilizing geothermal power according to claim 1, wherein: and a transformer is connected in series on a cable between the generator and the electrolytic cell.
3. The cogeneration system for producing hydrogen and desalinating water by utilizing geothermal power according to claim 1, wherein: the top of the electrolytic cell is provided with a gas guide cover, and the top of the gas guide cover is provided with a hydrogen outlet.
4. The cogeneration system for producing hydrogen and desalinating water by utilizing geothermal power according to claim 3, wherein: the hydrogen outlet is connected with a hydrogen storage container through a conduit.
5. The cogeneration system for producing hydrogen and desalinating water by utilizing geothermal power according to claim 4, wherein: the hydrogen storage container is a pressure tank.
6. The cogeneration system for producing hydrogen and desalinating water by utilizing geothermal power according to claim 1, wherein: the hot water pipeline and the tail water pipeline are wrapped by heat insulation layers.
7. The cogeneration system for producing hydrogen and desalinating water by utilizing geothermal power according to claim 1, wherein: and a horizontal well for communicating the geothermal well and the recharge well is arranged between the bottoms of the geothermal well and the recharge well.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113881949A (en) * | 2021-10-14 | 2022-01-04 | 深圳市凯豪达氢能源有限公司 | Application system of geothermal energy in alkaline water electrolysis hydrogen production under unstable power supply |
| WO2023239796A1 (en) * | 2022-06-07 | 2023-12-14 | Koloma, Inc. | Hydrogen enhanced geothermal power production |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113881949A (en) * | 2021-10-14 | 2022-01-04 | 深圳市凯豪达氢能源有限公司 | Application system of geothermal energy in alkaline water electrolysis hydrogen production under unstable power supply |
| WO2023239796A1 (en) * | 2022-06-07 | 2023-12-14 | Koloma, Inc. | Hydrogen enhanced geothermal power production |
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