CN216039843U - Evaporative cooling medium self-circulation full-immersion type water electrolysis hydrogen production system - Google Patents
Evaporative cooling medium self-circulation full-immersion type water electrolysis hydrogen production system Download PDFInfo
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- CN216039843U CN216039843U CN202122346691.9U CN202122346691U CN216039843U CN 216039843 U CN216039843 U CN 216039843U CN 202122346691 U CN202122346691 U CN 202122346691U CN 216039843 U CN216039843 U CN 216039843U
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- evaporative cooling
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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
Abstract
The utility model discloses an evaporative cooling medium self-circulation full-immersion type water electrolysis hydrogen production system, and relates to the technical field of hydrogen energy. The system comprises a vertical array hydrogen production unit and an evaporation and cooling medium supplementing system, wherein the vertical array hydrogen production unit sequentially comprises an electrolytic bath, a gas-liquid separator, a drying and purifying device and a hydrogen pressurizing device from bottom to top; the evaporative cooling medium supplementing system comprises a sealed container, a condensing coil, a liquid collecting disc, a gas storage tank and a solution tank; the hydrogen pressurizing device is connected with the gas storage tank; the sealed container is internally provided with an evaporative cooling medium which submerges the vertical array hydrogen production unit and the gas storage tank. The utility model combines the direct evaporation cooling technology with the water electrolysis hydrogen production system, fully utilizes the gas-liquid phase change of the evaporation cooling medium to carry away heat by self circulation, does not need to provide additional kinetic energy, has high heat exchange efficiency in the operation process, and can adapt to various working conditions.
Description
Technical Field
The utility model relates to the technical field of hydrogen energy, in particular to an evaporative cooling medium self-circulation full-immersion type water electrolysis hydrogen production system.
Background
Hydrogen is taken as the key research direction of future clean energy, and as the hydrogen production technology is mature and perfect, the hydrogen production capacity is gradually increased, so that the space occupied by hydrogen production equipment is gradually increased, and the heat generated in the hydrogen production process is larger. The conventional open type cooling radiating effect (air cooling) has higher requirement on the surrounding environment, and the radiating effect is not ideal; according to the technical requirements of hydrogen production by water electrolysis, the temperature of corresponding equipment must be controlled within a certain range and must not exceed a specified value; hydrogen is flammable and explosive hazardous gas, accidents are easy to occur when the hydrogen meets high temperature in an aerobic environment, and heat dissipation in the hydrogen production process needs to be paid attention.
Therefore, it is necessary to develop a water electrolysis hydrogen production system with evaporation cooling medium self-circulation full immersion.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the background technology and provide a self-circulation full-immersion type water electrolysis hydrogen production system of an evaporative cooling medium.
In order to achieve the purpose, the technical scheme of the utility model is as follows: the water electrolysis hydrogen production system of evaporation cooling medium self-loopa formula of soaking entirely, its characterized in that: the system comprises a plurality of groups of vertical array hydrogen production units and an evaporation and cooling medium supplementing system, wherein each group of vertical array hydrogen production units sequentially comprises a plurality of electrolytic tanks, a plurality of gas-liquid separators, a drying and purifying device and a hydrogen pressurizing device from bottom to top, and the plurality of groups of vertical array hydrogen production units are arranged in parallel at intervals;
the evaporative cooling medium supplementing system comprises a sealed container, a plurality of condensing coils positioned at the top in the sealed container, a liquid collecting disc positioned in the sealed container and below the condensing coils, a gas storage tank positioned in the sealed container and below the liquid collecting disc, and a solution tank positioned outside the sealed container and connected with the liquid collecting disc;
the vertical array hydrogen production unit is positioned at the bottom in the sealed container, and the hydrogen pressurization device is connected with the gas storage tank;
the sealed container is internally provided with an evaporative cooling medium which submerges the vertical array hydrogen production unit and the gas storage tank;
the solution tank is connected with the bottom of the sealed container through a liquid return pipe.
In the above technical solution, the system for supplementing evaporative cooling media further comprises a medium supplementing pipe connected with the bottom of the sealed container, and the medium supplementing pipe is provided with a medium supplementing valve.
In the above technical solution, the complementary evaporative cooling medium system further includes a leakage collection gas storage room located at the top of the sealed container.
In the technical scheme, the liquid collecting disc is provided with a slope, the liquid collecting disc is in a downhill state close to the solution tank, and the liquid collecting groove is formed in the position, corresponding to the condensing coil, of the liquid collecting disc.
Compared with the prior art, the utility model has the following advantages:
1) the utility model combines the direct evaporative cooling technology with the water electrolysis hydrogen production system, fully utilizes the gas-liquid phase change of the evaporative cooling medium to carry away heat by self-circulation, does not need to provide additional kinetic energy, has high heat exchange efficiency in the operation process, and can adapt to various working conditions;
2) the utility model adopts a low-boiling-point evaporation cooling medium full-immersion mode, and the gas-liquid phase state and the two-phase flow state can be self-adaptive and self-circulating according to the working condition of the hydrogen production system;
3) the hydrogen production equipment adopts the vertical unit array distribution, is convenient for evaporating the cooling medium to form a pressure head required by two-phase flow state self-circulation, and has intensive arrangement, high space utilization rate and greatly increased hydrogen production capacity and hydrogen production capacity under the same area;
4) the vertical array hydrogen production unit is arranged in an evaporative cooling medium, so that the influence of the external environment is isolated, the heat dissipation is considered, and the functions of safety, explosion prevention, leakage detection and the like are ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of a vertical array hydrogen production unit of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic structural view of a condensing coil and a liquid collecting tray.
Fig. 4 is a cross-sectional view taken at a-a in fig. 3.
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 utility model will be apparent and readily appreciated by the description.
With reference to the accompanying drawings: the water electrolysis hydrogen production system of evaporation cooling medium self-loopa formula of soaking entirely, its characterized in that: the device comprises a plurality of groups of vertical array hydrogen production units 1 and an evaporation and cooling medium supplementing system 2, wherein each group of vertical array hydrogen production units 1 sequentially comprises a plurality of electrolytic tanks 11, a plurality of gas-liquid separators 12, a drying and purifying device 13 and a hydrogen pressurizing device 14 from bottom to top, and the plurality of groups of vertical array hydrogen production units 1 are arranged in parallel at intervals;
the evaporative cooling medium supplementing system 2 comprises a sealed container 21, a plurality of condensing coils 22 arranged at the top in the sealed container 21, a liquid collecting tray 23 arranged in the sealed container 21 and below the condensing coils 22, a gas storage tank 24 arranged in the sealed container 21 and below the liquid collecting tray 23, and a solution tank 25 arranged outside the sealed container 21 and connected with the liquid collecting tray 23;
the vertical array hydrogen production unit 1 is positioned at the bottom in the sealed container 21, and the hydrogen pressurizing device 14 is connected with the gas storage tank 24;
the sealed container 21 is internally provided with an evaporative cooling medium which submerges the vertical array hydrogen production unit 1 and the gas storage tank 24; the evaporative cooling medium is a low boiling point (such as 55 ℃) evaporative cooling medium;
the solution tank 25 is connected to the bottom of the hermetic container 21 through a liquid return pipe 251.
The system 2 for supplementing evaporative cooling media further comprises a medium supplementing pipe 26 connected with the bottom of the sealed container 21, and a medium supplementing valve 261 is arranged on the medium supplementing pipe 26.
The complementary evaporative cooling media system 2 further includes a leak collection plenum 27 located at the top of the containment vessel 21.
The liquid collecting disc 23 has a slope, the slope of the liquid collecting disc 23 close to the solution tank 25 is a downhill slope, the slope is 0.005, and a liquid collecting groove 231 is formed in the position, corresponding to the condensing coil 22, of the liquid collecting disc 23.
The use method of the evaporative cooling medium self-circulation full-immersion type water electrolysis hydrogen production system is characterized by comprising the following steps:
step 1: opening a medium supplementing valve 261, injecting evaporative cooling medium into the sealed container 21 through a medium supplementing pipe 26, and closing the medium supplementing valve 261 when the evaporative cooling medium submerges the vertical array hydrogen production unit 1 and the gas storage tank 24;
step 2: the gradient of the liquid collecting tray 23 is adjusted to ensure that the condensed heat-released liquid evaporative cooling medium can flow to the solution tank 25 along the gradient direction; cooling water is passed into the condenser coil 22;
and step 3: the vertical array hydrogen production unit 1 starts to work, after the operation is carried out for a period of time, the liquid evaporative cooling medium evaporates and rises, water drops appear on the surface of the condensing coil 22, namely, the gaseous evaporative cooling medium condenses and liquefies, gradually gathers and drops to the liquid collecting tray 23, and flows to the solution tank 25
And 4, step 4: the solution tank 25 returns the evaporative cooling medium to the sealed container 21 through the liquid return pipe 251, completing the self-circulation of the evaporative cooling medium.
In step 3, a medium temperature sensor in the sealed container 21 is used for monitoring the change value of the evaporative cooling medium, the change value is linked with a cooling water system of the condensing coil 22, if the temperature change exceeds a set value of 2 ℃, the opening degree of a cooling water flow regulating valve is regulated, and heat generated by water electrolysis is conveyed to the external environment through the cooling water until the temperature of the evaporative cooling medium returns to the set value.
The leaked hydrogen gas is concentrated to the leakage collection gas storage room 27, and the pressure in the leakage collection gas storage room 27 is gradually increased to discharge the leaked hydrogen gas to the spare hydrogen storage tank when reaching a set value.
In practical use, the condensing coil 22 is internally filled with cooling circulating water to cool the gaseous evaporative cooling medium and take away heat in the gaseous evaporative cooling medium; the high-temperature evaporative cooling medium meets the low-temperature condensing coil 22, the gas state is condensed into the liquid state, water drops are formed on the outer surface of the condensing coil 22, and then the water drops are gathered and dropped into the liquid collecting groove 231 of the liquid collecting tray 23.
The liquid collecting disc 23: the evaporative cooling medium is collected and communicated to the solution tank 25.
The air storage tank 24: the system mainly comprises a hydrogen storage system and an oxygen storage system, wherein the hydrogen storage system is used for storing hydrogen prepared by electrolyzing water in a grading and pressurizing manner, and related requirements need to meet related standards and specifications such as GB 4962-2008 'technical code for hydrogen use safety'; the oxygen storage system is used for storing another byproduct oxygen produced by the electrolytic water under pressure; the air reservoir 24 may be made of metal or a novel light weight composite material.
Solution tank 25: the liquid evaporative cooling medium for temporarily collecting condensed heat release is connected with the liquid collecting tray 23 at one end and the liquid return pipe 251 at the other end, and flows back to the sealed container 21 through the liquid return pipe 251.
The sealed container 21: the container is filled with evaporative cooling medium, and the vertical array hydrogen production unit 1, the gas storage tank 24 and the pipeline are arranged in the evaporative cooling medium and submerged. The running condition of the device can be observed in a whole course and in all directions.
Leak collection gas storage space 27: the inside of the sealed container 21 is observed for leakage of hydrogen gas, and collection or evacuation processing is performed in time.
Vertical array structure support 15: stainless steel or other metal structural members can be adopted to form a flat and box-shaped integral structural frame; the device is an integral support foundation which is reinforced, weighted, safe, overturn-proof and deformation-proof, and can realize quick and rear-mounted installation and expansion.
The utility model is characterized in that the electric energy (about 1/3) consumed in the hydrogen production process is directly converted into the calorific value to be discharged.
Referring to fig. 1, each group of vertical array hydrogen production units 1 adopts a vertical 4-layer arrangement, 4 hydrogen production units, each group of vertical array hydrogen production units 1 is spaced by 2m, and 3 groups run in parallel; after all parts of the conventional water electrolysis system are built, the hydrogen production units are assembled according to the vertical array 1 and are all placed in the sealed container 21. The sealed container 21 is filled with evaporative cooling medium, the condensing coil 22 is arranged at the uppermost part of the sealed container 21, the liquid collecting disc 23 is arranged below the condensing coil 22, and all the parts are connected through pipelines, matched with safety parts and automation elements.
A temperature sensor is arranged in the sealed container 21 and is linked with a cooling water regulating valve of the condensing coil 22, so that the temperature of the evaporative cooling medium is controlled to be in the optimal environmental condition for water electrolysis hydrogen production.
The utility model is matched with a liquid level monitoring and hydrogen leakage monitoring system, and can find the hydrogen gas leakage condition and the equipment operation condition in time while producing hydrogen.
Other parts not described belong to the prior art.
Claims (4)
1. The water electrolysis hydrogen production system of evaporation cooling medium self-loopa formula of soaking entirely, its characterized in that: the device comprises a plurality of groups of vertical array hydrogen production units (1) and an evaporation and cooling medium supplementing system (2), wherein each group of vertical array hydrogen production units (1) sequentially comprises a plurality of electrolytic tanks (11), a plurality of gas-liquid separators (12), a drying and purifying device (13) and a hydrogen pressurizing device (14) from bottom to top, and the plurality of groups of vertical array hydrogen production units (1) are arranged in parallel at intervals;
the evaporative cooling medium supplementing system (2) comprises a sealed container (21), a plurality of condensing coils (22) positioned at the top in the sealed container (21), a liquid collecting tray (23) positioned in the sealed container (21) and below the condensing coils (22), a gas storage tank (24) positioned in the sealed container (21) and below the liquid collecting tray (23), and a solution tank (25) positioned outside the sealed container (21) and connected with the liquid collecting tray (23);
the vertical array hydrogen production unit (1) is positioned at the bottom in the sealed container (21), and the hydrogen pressurization device (14) is connected with the gas storage tank (24);
evaporative cooling media for submerging the vertical array hydrogen production unit (1) and the gas storage tank (24) are arranged in the sealed container (21);
the solution tank (25) is connected with the bottom of the sealed container (21) through a liquid return pipe (251).
2. The system for electrolytic hydrogen production by water of self-circulation and full-immersion type of evaporative cooling media as claimed in claim 1, wherein: the evaporation-supplementing cooling medium system (2) further comprises a medium supplementing pipe (26) connected with the bottom of the sealed container (21), and a medium supplementing valve (261) is arranged on the medium supplementing pipe (26).
3. The system for electrolytic production of hydrogen by water with self-circulation and full-immersion evaporative cooling media as claimed in claim 2, wherein: the complementary evaporative cooling medium system (2) further comprises a leakage collection gas storage room (27) positioned at the top of the sealed container (21).
4. The system for electrolytic production of hydrogen by water with self-circulation and full-immersion evaporative cooling media as claimed in claim 3, wherein: the liquid collecting disc (23) is provided with a slope, the liquid collecting disc (23) is arranged on a downslope close to the solution tank (25), and a liquid collecting groove (231) is formed in the corresponding position of the liquid collecting disc (23) and the condensing coil (22).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122346691.9U CN216039843U (en) | 2021-09-27 | 2021-09-27 | Evaporative cooling medium self-circulation full-immersion type water electrolysis hydrogen production system |
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| CN202122346691.9U CN216039843U (en) | 2021-09-27 | 2021-09-27 | Evaporative cooling medium self-circulation full-immersion type water electrolysis hydrogen production system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113737203A (en) * | 2021-09-27 | 2021-12-03 | 长江勘测规划设计研究有限责任公司 | Evaporative cooling medium self-circulation full-immersion type water electrolysis hydrogen production system and use method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113737203A (en) * | 2021-09-27 | 2021-12-03 | 长江勘测规划设计研究有限责任公司 | Evaporative cooling medium self-circulation full-immersion type water electrolysis hydrogen production system and use method |
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