CN113737209A - Water electrolysis hydrogen production system adopting external circulation evaporation cooling full immersion and use method - Google Patents
Water electrolysis hydrogen production system adopting external circulation evaporation cooling full immersion and use method Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 237
- 239000001257 hydrogen Substances 0.000 title claims abstract description 105
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 105
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 104
- 238000001816 cooling Methods 0.000 title claims abstract description 74
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 71
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 68
- 238000007654 immersion Methods 0.000 title claims abstract description 24
- 238000001704 evaporation Methods 0.000 title claims abstract description 20
- 230000008020 evaporation Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000498 cooling water Substances 0.000 claims abstract description 28
- 238000009833 condensation Methods 0.000 claims description 32
- 230000005494 condensation Effects 0.000 claims description 32
- 238000003860 storage Methods 0.000 claims description 30
- 230000001502 supplementing effect Effects 0.000 claims description 29
- 239000007789 gas Substances 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 16
- 230000005484 gravity Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000017525 heat dissipation Effects 0.000 abstract description 6
- 238000009826 distribution Methods 0.000 abstract description 4
- 238000005457 optimization Methods 0.000 abstract 1
- 239000003513 alkali Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- -1 Hydrogen Chemical class 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/60—Constructional parts of cells
- C25B9/67—Heating or cooling means
-
- 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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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention discloses a water electrolysis hydrogen production system adopting an external circulation evaporation cooling full immersion mode, and relates to the technical field of hydrogen energy. The system comprises a water-sealed container, a water electrolysis hydrogen production system, an evaporation cooling system and a water replenishing system, wherein cooling water in the water-sealed container is immersed in the water electrolysis hydrogen production system; the evaporative cooling system comprises an evaporative cooler, a cooling water outlet and a cooling water inlet, the cooling water outlet is connected with the water-tight container, and the cooling water inlet passes through the cooling circulating pump; the water replenishing system comprises a water replenishing tank and a first water replenishing pipe. The invention combines the optimization of the heat dissipation effect of the full immersion type and the vertical array on the electrolytic hydrogen production, and utilizes the external circulation of the evaporative cooler to cool the water electrolytic hydrogen production system; the cooling effect of the evaporative cooler is obvious, so that the temperature rise of the whole hydrogen production equipment is reduced, the temperature distribution of the equipment is more uniform, and the safety and stability of the whole hydrogen production process are ensured. The invention also relates to a using method of the water electrolysis hydrogen production system adopting the external circulation evaporation cooling full immersion type.
Description
Technical Field
The invention relates to the technical field of hydrogen energy, in particular to a water electrolysis hydrogen production system adopting an external circulation evaporation cooling full immersion type. The invention also relates to a using method of the water electrolysis hydrogen production system adopting the external circulation evaporation cooling full immersion type.
Background
The water can absorb heat through evaporation, so that the water has a certain cooling function, the evaporative cooling technology is characterized in that heat and cold exchange is carried out after the water is in flowing contact with air to generate steam from a thermal principle, and the steam volatilizes and takes away the heat to achieve evaporation and heat dissipation; because the latent heat of vaporization of the fluid is much larger than the specific heat of the fluid, the cooling effect of evaporative cooling is more obvious, and the evaporative cooling has the characteristics of no pollution, low initial investment and operation cost, convenient realization and the like; however, the heat dissipation of the conventional hydrogen production process does not employ evaporative cooling technology.
The hydrogen production process is a heat release process, and the heat energy generated by the hydrogen production equipment is huge along with the gradual increase of the hydrogen production capacity; the conventional open type cooling radiating effect is unsatisfactory, the condition of high temperature alarm and even equipment damage often occurs, and hydrogen is flammable and explosive dangerous gas and is easy to cause accidents when meeting high temperature in an aerobic environment; according to the technical requirements of electrolytic hydrogen production, the temperature of corresponding equipment must be controlled within a certain range and must not exceed a specified value; according to past production experience data, when the scale of water electrolysis hydrogen production is 10MW, the traditional hydrogen production system consumes about 5 kW.h of electric energy to produce 1m3Hydrogen, which is converted into about 1/3 electric energy by adopting a heat value to be directly converted into heat; therefore, the heat generated in the whole hydrogen production process is very large, and if the heat dissipation problem cannot be well treated, the hydrogen production efficiency is reduced and certain safety problems are brought.
Therefore, it is necessary to develop a water electrolysis hydrogen production system adopting an external circulation evaporation cooling full immersion type.
Disclosure of Invention
The first purpose of the present invention is to overcome the above disadvantages of the background art, and to provide a system for producing hydrogen by water electrolysis using external circulation evaporation cooling full immersion.
The second purpose of the invention is to provide a using method of the water electrolysis hydrogen production system adopting the external circulation evaporation cooling full immersion type.
In order to achieve the first object, the technical scheme of the invention is as follows: adopt water electrolysis hydrogen manufacturing system of extrinsic cycle evaporation cooling full immersion formula, its characterized in that: the system comprises a water-sealed container, a water electrolysis hydrogen production system positioned in the water-sealed container, an evaporative cooling system connected with the water-sealed container and a water replenishing system connected with the water-sealed container, wherein the cooling water in the water-sealed container immerses the water electrolysis hydrogen production system;
the evaporative cooling system comprises an evaporative cooler, a cooling water outlet and a cooling water inlet, wherein the cooling water outlet is connected with the water sealing container, and the cooling water inlet passes through the cooling circulating pump;
the water supplementing system comprises a water supplementing tank and a first water supplementing pipe, one end of the first water supplementing pipe is connected with the water supplementing tank, and the other end of the first water supplementing pipe is connected with the water sealing container.
In the above technical scheme, there is the condensation chamber in the evaporative cooler, the inside both sides of condensation chamber are provided with the condensation calandria, there is the water-collecting tray condensation calandria bottom, the water-collecting tray both ends all are connected with circulating pipe, circulating pipe arranges along the condensation chamber outer wall, and circulating pipe and the condensation chamber top intercommunication that are located the evaporative cooler top, circulating pipe is connected with circulating water pump.
In the above technical scheme, the top of the evaporative cooler is provided with an axial flow fan, the air inlets of the axial flow fan are positioned at two sides of the evaporative cooler, and the circulating water pipe is positioned below the axial flow fan.
In the above technical solution, the condensation drain pipe is arranged obliquely to the water collection tray.
In the above technical scheme, the water charging system further comprises a second water charging pipe, one end of the second water charging pipe is connected with the water charging tank, and the other end of the second water charging pipe is connected with the circulating water pipe.
In the technical scheme, the water electrolysis hydrogen production system is in a vertical array structure and is connected with the gas storage tank immersed by cooling water.
In the technical scheme, the top of the water-tight container is provided with a leakage collection gas storage room.
In the above technical scheme, a water replenishing pump is arranged on the first water replenishing pipe.
In order to achieve the second object, the invention has the technical scheme that: the use method of the water electrolysis hydrogen production system adopting the external circulation evaporation cooling full immersion type is characterized in that: the method comprises the following steps:
step 1: a water replenishing pump on the first water replenishing pipe is opened, water is filled into the water sealing container from the water replenishing tank, the water electrolysis hydrogen production system is completely submerged, and the water is stopped from being filled when the water level value is set;
step 2: the evaporative cooler is supplied with water by gravity through a communicated water supply tank;
and step 3: the water replenishing pump is closed, the cooling circulating pump is started, and the water electrolysis hydrogen production system starts to work; if leakage exists, the leaked hydrogen is concentrated to the leakage collection gas storage room, the pressure of the leakage collection gas storage room is gradually increased, and the exhaust valve is opened to exhaust the hydrogen to the standby hydrogen storage tank when the pressure of the leakage collection gas storage room reaches a set value;
and 4, step 4: when the water electrolysis hydrogen production system normally works, a water temperature sensor arranged in a water sealing container is used for monitoring the change value of water temperature, the water temperature sensor is linked with a cooling circulating pump, the cooling circulating pump is started according to the set temperature change exceeding +2 ℃, the cooling circulating pump is linked with an evaporative cooler to start operation, evaporative cooling heat exchange is started, and heat generated by water electrolysis is taken away to the external environment; when the water temperature returns to the set value, the evaporative cooler stops running firstly, and then the cooling circulating pump stops running; the circulation ensures that the whole water electrolysis hydrogen production process can be continuously carried out.
Compared with the prior art, the invention has the following advantages:
1) the invention fully utilizes the evaporative cooling heat absorption characteristic of water, and utilizes the external circulation evaporative cooling water electrolysis hydrogen production system of the evaporative cooler on the basis of optimizing and improving the heat dissipation effect of the electrolytic hydrogen production by combining the full immersion type and the vertical array; the cooling effect of the evaporative cooler is obvious, so that the temperature rise of the whole hydrogen production equipment is reduced, the temperature distribution of the equipment is more uniform, and the safety and stability of the whole hydrogen production process are ensured.
2) The invention applies the evaporative cooling technology to the water electrolysis hydrogen production system, introduces the evaporative cooler, fully utilizes the outside air as a natural cold source, directly exchanges heat with the air, has high heat exchange efficiency and mature and reliable technology, and can adapt to various working conditions.
3) The water electrolysis hydrogen production system is distributed in vertical units, thereby being beneficial to heat dissipation and space saving and enhancing the water electrolysis hydrogen production capacity.
4) The water electrolysis hydrogen production system is completely arranged under water in the water-tight container, so that the influence of the external environment is isolated, the functionality in the aspects of safety, explosion prevention, leakage detection and the like is greatly improved, the whole process is closed and visualized management is executed, and the water electrolysis hydrogen production system has high standard process value.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the structure of the evaporative cooling system.
The system comprises a water-tight container 1, an air storage tank 11, a leakage collection air storage chamber 12, a water electrolysis hydrogen production system 2, an evaporative cooling system 3, an evaporative cooler 31, a condensation chamber 311, a condensation exhaust pipe 312, a water collecting tray 313, a circulating water pipe 314, a circulating water pump 315, a cooling water outlet 32, a cooling water inlet 33, a cooling circulating pump 331, an axial flow fan 34, a water replenishing system 4, a water replenishing tank 41, a first water replenishing pipe 42, a water replenishing pump 421 and a second water replenishing pipe 43.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be clear and readily understood by the description.
With reference to the accompanying drawings: adopt water electrolysis hydrogen manufacturing system of extrinsic cycle evaporation cooling full immersion formula, its characterized in that: the system comprises a water-sealed container 1, a water electrolysis hydrogen production system 2 positioned in the water-sealed container 1, an evaporative cooling system 3 connected with the water-sealed container 1 and a water replenishing system 4 connected with the water-sealed container 1, wherein the cooling water in the water-sealed container 1 immerses the water electrolysis hydrogen production system 2;
the evaporative cooling system 3 comprises an evaporative cooler 31, a cooling water outlet 32 and a cooling water inlet 33, wherein the cooling water outlet 32 is connected with the water-sealed container 1, and the cooling water inlet 33 is connected with a cooling circulating pump 331;
the water supplementing system 4 comprises a water supplementing tank 41 and a first water supplementing pipe 42, one end of the first water supplementing pipe 42 is connected with the water supplementing tank 41, and the other end of the first water supplementing pipe 42 is connected with the water sealing container 1.
There is condensation chamber 311 in the evaporative cooler 31, the inside both sides of condensation chamber 311 are provided with condensation calandria 312, there is water-collecting tray 313 condensation calandria 312 bottom, water-collecting tray 313 both ends all are connected with circulating pipe 314, circulating pipe 314 arranges along condensation chamber 311 outer wall, and circulating pipe 314 that is located evaporative cooler 31 top communicates with condensation chamber 311 top, circulating pipe 314 is connected with circulating water pump 315.
The top of the evaporative cooler 31 is provided with an axial flow fan 34, the air inlets of the axial flow fan 34 are positioned at two sides of the evaporative cooler 31, and the circulating water pipe 314 is positioned below the axial flow fan 34.
The condensation drain 312 is arranged inclined towards the water collection tray 313.
The water supplementing system 4 further comprises a second water supplementing pipe 43, one end of the second water supplementing pipe 43 is connected with the water supplementing tank 41, and the other end of the second water supplementing pipe 43 is connected with the circulating water pipe 314.
The water electrolysis hydrogen production system 2 is of a vertical array structure, and the water electrolysis hydrogen production system 2 is connected with a gas storage tank 11 immersed by cooling water.
The top of the water-tight container 1 is provided with a leakage collection gas storage room 12.
The first water replenishing pipe 42 is provided with a water replenishing pump 421.
The use method of the external circulation evaporation cooling full immersion type water electrolysis hydrogen production system comprises the following steps:
step 1: after the systems are installed according to the standard and the detection is finished, a water replenishing pump 421 on a first water replenishing pipe 42 is turned on, water is filled into the water sealing container 1 from a water replenishing tank 41, the water electrolysis hydrogen production system 2 is completely submerged, the water filling is stopped when the water level value set by the liquid level controller is reached, and a replenishing water source is from clean water sources such as tap water;
step 2: the evaporative cooler 31 is supplied with water by gravity through a communicated water supply tank 41, a ball float valve is arranged at a water inlet in the lower water collecting tray 313, and when the water level in the water collecting tray 313 is lower than a set value, the ball float valve is opened to automatically supply cooling water; when the water level in the water collecting tray 313 reaches a set value, the float valve is closed;
and step 3: the connection between the water-tight container 1 and the condenser/drain pipe 312 of the evaporative cooler 31 is checked, and the water replenishing pump 421 is turned off after the check. Starting the cooling circulating pump 331, observing that water in the water-sealed container 1 can flow normally and stably, and determining that the evaporative cooling loop runs well;
and 4, step 4: after water replenishing is completed, electric energy is supplied to the water electrolysis hydrogen production system 2 through the power distribution control cabinet, the water electrolysis hydrogen production system 2 starts to work, whether bubbles exist in water in the water-sealed container 1 is observed from the observation window, if leakage conditions exist in a pipeline or electrolysis equipment, continuous bubbles can be formed, the hydrogen leakage monitoring system gives an alarm, the water electrolysis hydrogen production system 2 is automatically closed according to the leakage degree, and a worker is reminded of timely processing; because the hydrogen has the characteristic of insolubility in water, the leaked hydrogen is concentrated to the leakage collection gas storage room 12, the pressure of the leakage collection gas storage room 12 is gradually increased, when the pressure reaches a set value, the exhaust valve is opened to exhaust the leaked hydrogen to the standby hydrogen storage tank, the volume of the standby hydrogen storage tank is half of that of the main hydrogen storage tank, and the standby hydrogen storage tank is made of the same material;
and 5: after the water electrolysis hydrogen production system 2 is confirmed to work normally, the change value of the water temperature is monitored through a water temperature sensor set in the water sealing container 1, the water temperature change value is linked with the cooling circulating pump 331, the cooling circulating pump 331 is started according to the fact that the set temperature change exceeds +2 ℃, the cooling circulating pump 331 is linked with the evaporative cooler 31 to start running, evaporative cooling heat exchange is started, and heat generated by water electrolysis is taken away to the external environment. When the water temperature returns to the set value, the evaporative cooler 31 stops operating first, and then the cooling circulation pump 331 stops operating; the circulation ensures that the whole water electrolysis hydrogen production process can be continuously carried out.
In practical use, when the water temperature in the water-sealed container 1 reaches 32 ℃, the evaporative cooling system 3 is started to dissipate heat, and the return water temperature is set to be 30 ℃.
Water electrolysis hydrogen production system 2 packageComprises an electrolytic bath and accessory equipment; the electrolytic bath is a core device of the water electrolysis hydrogen production system 2 and is used for electrolyzing water to produce hydrogen and oxygen; the electrolyzer auxiliary equipment comprises H2(O2) Alkali liquid separator, H2(O2) Circulation pump for alkali solution H2(O2) Alkali liquor filter, H2(O2) Separator, H2(O2) cooler, H2(O2) Drip catcher, H2(O2) A gas-water separator, a deoxygenator, a dryer, a regenerative cooler and an alkaline liquid tank.
The water replenishing system 4 is a reservoir for hydrogen production water, sealing water and evaporative cooling water replenishing, and is used for replenishing pure water into the water-sealed container 1, the water electrolysis hydrogen production system 2 and the evaporative cooler 31 through a first water replenishing pipe 42 and a second water replenishing pipe 43, and can also be used for storing alkali liquor returned from the water electrolysis hydrogen production system 2 during maintenance.
The evaporative cooling system 3 comprises an evaporative cooler 31, a cooling circulating pump 331, a matched pipeline valve and the like; the evaporative cooler 31 is a rectangular box body, a condensation exhaust pipe 312 is arranged in the box body, a water collecting tray 313 is arranged at the bottom of the condensation exhaust pipe 312, and an axial flow fan 34 is arranged at the top of the box body of the evaporative cooler 31; the cooling circulating water is sprayed on the condensation calandria 312, a thin water film is formed on the outer surface of the condensation calandria 312, part of water in the water film absorbs heat on the condensation side and evaporates into water vapor, and the rest of the water vapor falls into the lower water collecting tray 313 and continues to circulate through the circulating water pump 315; the axial flow fan 34 forces the air to pass through the condensation exhaust pipe 312 at a speed of 3-5m/s, on one hand, the evaporation of a water film is promoted, the heat release outside the condensation pipe is strengthened, and on the other hand, the water drops after absorbing heat in the falling process are cooled by the air; the water droplets that are not gasified in the evaporation process fall back to the lower water collector 313 after passing through the upper water collector, so as to reduce the consumption of water. The side of the evaporative cooler 31 is communicated with the water sealing container 1 through a pipeline to realize the evaporative cooling function and discharge the heat contained in the high-temperature water in the water sealing container 1; the cooling circulation pump 331 is disposed between the water-sealed container 1 and the evaporative cooler 31, and provides power for the water in the water-sealed container 1 to flow to the side of the condensation drain pipe 312 of the evaporative cooler 31, so as to circulate the "high-temperature water" in the water-sealed container 1, which absorbs hydrogen produced by electrolysis and releases heat, to the condensation drain pipe 312 of the evaporative cooler 31 for cooling, and then to return to the water-sealed container 1.
The gas storage tank 11 is mainly divided into a hydrogen storage system and an oxygen storage system, the hydrogen storage system is used for storing hydrogen produced by electrolyzing water in a grading pressurization manner, and relevant requirements need to meet relevant standards and specifications such as GB 4962-2008 'technical code for hydrogen use safety'; the oxygen storage system is used for storing oxygen which is another byproduct produced by the electrolysis of water under pressure. The gas storage tank can be made of metal materials or novel light composite materials.
The distribution control cabinet is a complete set of control system for the pressure, temperature, water flow and the like of the electrolytic water.
Water is filled in the water sealing container 1, the water sealing container 1 and the hydrogen storage tank 11 are arranged in water to be submerged, and hydrogen is prevented from leaking to the external space to form potential safety hazards; the top of the water sealing container 1 adopts a transparent cover plate for observing the running condition of the device in a whole course and all directions.
The leakage collecting gas storage room 12 is used for observing whether hydrogen in the water sealing device leaks or not and carrying out collection or emptying treatment in time.
The water electrolysis hydrogen production system 2 is of a vertical array structure, and a vertical array structure support can adopt stainless steel or other metal structural members to form a flat and box-shaped integral structure frame which can be generally divided into three layers of vertical arrangement spaces of an electrolytic bath, purification and drying and pressurized storage; the vertical array structure support foundation is a reinforced, weighted, safe, overturn-preventing and deformation-preventing integral support foundation and can realize quick and rear-mounted installation and expansion.
Other parts not described belong to the prior art.
Claims (9)
1. Adopt water electrolysis hydrogen manufacturing system of extrinsic cycle evaporation cooling full immersion formula, its characterized in that: the system comprises a water-sealed container (1), a water electrolysis hydrogen production system (2) positioned in the water-sealed container (1), an evaporative cooling system (3) connected with the water-sealed container (1) and a water supplementing system (4) connected with the water-sealed container (1), wherein cooling water in the water-sealed container (1) immerses the water electrolysis hydrogen production system (2);
the evaporative cooling system (3) comprises an evaporative cooler (31), a cooling water outlet (32) and a cooling water inlet (33), wherein the cooling water outlet (32) is connected with the water-sealed container (1), and the cooling water inlet (33) passes through a cooling circulating pump (331);
the water supplementing system (4) comprises a water supplementing tank (41) and a first water supplementing pipe (42), one end of the first water supplementing pipe (42) is connected with the water supplementing tank (41), and the other end of the first water supplementing pipe is connected with the water sealing container (1).
2. The system for producing hydrogen by water electrolysis by adopting external circulation evaporative cooling full immersion as claimed in claim 1, wherein: there is condensation chamber (311) in evaporative cooler (31), the inside both sides of condensation chamber (311) are provided with condensation calandria (312), there is water-collecting tray (313) condensation calandria (312) bottom, water-collecting tray (313) both ends all are connected with circulating pipe (314), circulating pipe (314) are arranged along condensation chamber (311) outer wall, are located circulating pipe (314) and the top intercommunication of condensation chamber (311) at evaporative cooler (31) top, circulating pipe (314) are connected with circulating water pump (315).
3. The system for producing hydrogen by water electrolysis by adopting external circulation evaporative cooling full immersion as claimed in claim 2, characterized in that: an axial flow fan (34) is arranged at the top of the evaporative cooler (31), air inlets of the axial flow fan (34) are positioned at two sides of the evaporative cooler (31), and the circulating water pipe (314) is positioned below the axial flow fan (34).
4. The system for producing hydrogen by water electrolysis using external circulation evaporative cooling full immersion as claimed in claim 3, wherein: the condensation drain pipe (312) is obliquely arranged towards the water collecting tray (313).
5. The system for producing hydrogen by water electrolysis using external circulation evaporative cooling full immersion as claimed in claim 4, wherein: the water supplementing system (4) further comprises a second water supplementing pipe (43), one end of the second water supplementing pipe (43) is connected with the water supplementing tank (41), and the other end of the second water supplementing pipe (43) is connected with the circulating water pipe (314).
6. The system for producing hydrogen by water electrolysis by adopting external circulation evaporative cooling full immersion as claimed in claim 5, characterized in that: the water electrolysis hydrogen production system (2) is of a vertical array structure, and the water electrolysis hydrogen production system (2) is connected with a gas storage tank (11) immersed by cooling water.
7. The system for producing hydrogen by water electrolysis using external circulation evaporative cooling full immersion as claimed in claim 6, wherein: the top of the water-tight container (1) is provided with a leakage collection and gas storage room (12).
8. The system for producing hydrogen by water electrolysis using external circulation evaporative cooling full immersion as claimed in claim 7, wherein: and a water replenishing pump (421) is arranged on the first water replenishing pipe (42).
9. The use method of the external circulation evaporation cooling full immersion type water electrolysis hydrogen production system according to any one of claims 1 to 8, is characterized in that: the method comprises the following steps:
step 1: a water replenishing pump (421) on a first water replenishing pipe (42) is opened, water is filled into the water sealing container (1) from a water replenishing tank (41), the water electrolysis hydrogen production system (2) is completely submerged, and the water filling is stopped when the water level value is set;
step 2: the evaporative cooler (31) is replenished with water by gravity through a communicated water replenishing tank (41);
and step 3: the water replenishing pump (421) is closed, the cooling circulating pump (331) is started, and the water electrolysis hydrogen production system (2) starts to work; if leakage exists, leaked hydrogen is concentrated to the leakage collection gas storage room (12), the pressure of the leakage collection gas storage room (12) is gradually increased, and when a set value is reached, an exhaust valve is opened to exhaust the leaked hydrogen to a standby hydrogen storage tank;
and 4, step 4: when the water electrolysis hydrogen production system (2) normally works, a water temperature sensor arranged in the water seal container (1) is used for monitoring the change value of water temperature, the water temperature sensor is linked with the cooling circulating pump (331), the cooling circulating pump (331) is started according to the set temperature change exceeding +2 ℃, the cooling circulating pump (331) is linked with the evaporative cooler (31) to start running, the evaporative cooling heat exchange is started, and the heat generated by water electrolysis is taken away to the external environment; when the water temperature returns to the set value, the operation of the evaporative cooler (31) is stopped firstly, and then the cooling circulating pump (331) is stopped; the circulation ensures that the whole water electrolysis hydrogen production process can be continuously carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111134307.7A CN113737209A (en) | 2021-09-27 | 2021-09-27 | Water electrolysis hydrogen production system adopting external circulation evaporation cooling full immersion and use method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111134307.7A CN113737209A (en) | 2021-09-27 | 2021-09-27 | Water electrolysis hydrogen production system adopting external circulation evaporation cooling full immersion and use method |
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| CN113737209A true CN113737209A (en) | 2021-12-03 |
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| CN202111134307.7A Pending CN113737209A (en) | 2021-09-27 | 2021-09-27 | Water electrolysis hydrogen production system adopting external circulation evaporation cooling full immersion and use method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115287680A (en) * | 2022-09-21 | 2022-11-04 | 中能(江苏苏州)氢能源科技有限公司 | Water electrolysis hydrogen production system utilizing ultrasonic field |
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