CN209782230U - System for reducing hydrogen storage and discharge risk - Google Patents
System for reducing hydrogen storage and discharge risk Download PDFInfo
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- CN209782230U CN209782230U CN201822242437.2U CN201822242437U CN209782230U CN 209782230 U CN209782230 U CN 209782230U CN 201822242437 U CN201822242437 U CN 201822242437U CN 209782230 U CN209782230 U CN 209782230U
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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
- Y02E60/32—Hydrogen storage
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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
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/45—Hydrogen technologies in production processes
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Abstract
The utility model discloses a system for reducing hydrogen storage and discharge risks, which comprises a hydrogen discharge pipeline, a valve and a gas-liquid separator, wherein one end of the hydrogen discharge pipeline is connected with the top of a hydrogen storage tank, and the other end of the hydrogen discharge pipeline is connected with a drain pipe at the bottom of the hydrogen storage tank; the gas-liquid separator comprises a shell, a gas-liquid separation pipe and an overflow plate, wherein an exhaust pipe is arranged above the shell, a liquid discharge pipe is arranged below the shell, the gas-liquid separation pipe is vertically arranged in the shell, and the lower end of the gas-liquid separation pipe faces the bottom of the gas-liquid separator and is positioned below a water seal liquid level; the overflow plate is vertically arranged at the bottom of the shell, and two sides of the overflow plate are respectively arranged with the side wall of the shell in a sealing way, so that the liquid discharge pipe and the gas-liquid separation pipe are separated in different areas; the gas-liquid separator is arranged close to the bottom of the hydrogen storage tank or in a peripheral drainage ditch, and the bottom of the hydrogen storage tank is connected with the gas-liquid separation pipe through a drainage pipe; the exhaust pipe is connected with the hydrogen exhaust pipeline.
Description
Technical Field
The utility model belongs to the hydrogen field of storing, concretely relates to system for reduce hydrogen and store hydrogen discharge risk.
Background
The hydrogen is inflammable and explosive gas, the explosion limit concentration (volume percentage) in the air is 4.0-75.6%, the explosion limit concentration (volume percentage) in the oxygen is 4.0-94%, and the minimum ignition energy of the hydrogen in the air is 0.019mJ, so that the hydrogen is very easy to ignite and explode. Hydrogen is a simple asphyxiating gas, and only at high concentrations, hypoxic asphyxia is caused by a decrease in the partial pressure of oxygen in the air. Under very high partial pressures, an anesthetic effect is exhibited.
The hydrogen station can replace water for the hydrogen storage tank at the initial stage of normal operation and equipment shutdown, maintenance and operation, a blow-down valve at the bottom of the storage tank needs to be opened for draining water in the replacement process, and hydrogen is filled into the hydrogen storage tank3H2) Therefore, it is necessary to sufficiently discharge the water in the hydrogen tank. In the conventional design, the design is directly as followsThe water is drained into the drainage ditch, so that hydrogen is drained into the drainage ditch along with sewage, the hydrogen is lighter in weight and low in solubility in water, and therefore the hydrogen can be enriched around the hydrogen storage tank, so that the concentration of local hydrogen is increased, ignition and explosion can occur under the condition, the anesthetic effect is generated on workers, and the like, and the harm is caused to the workers or even the whole power plant.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem existing in the prior art, the utility model aims at providing a system for reducing hydrogen risk of discharging hydrogen. Through increase a vapour and liquid separator on the bottom blow off pipeline, effectively improve the separation of hydrogen and water, hydrogen is arranged to the atmosphere from the upper portion hydrogen discharge pipeline of taking through the tube coupling to the storage tank body, and water is discharged by the bottom to the risk of preventing hydrogen storage tank bottom hydrogen enrichment has been realized.
In order to solve the technical problem, the technical scheme of the utility model is that:
A system for reducing hydrogen discharge risk of hydrogen comprises a hydrogen discharge pipeline and a gas-liquid separator, wherein one end of the hydrogen discharge pipeline is connected with the top of a hydrogen storage tank, the other end of the hydrogen discharge pipeline extends upwards, and a flame arrester and an exhaust cap are sequentially arranged at the end part of the hydrogen discharge pipeline;
The gas-liquid separator comprises a shell, a gas-liquid separation pipe and an overflow plate, wherein an exhaust pipe is arranged above the shell, a liquid discharge pipe is arranged below the shell, the gas-liquid separation pipe is vertically arranged in the shell, and the lower end of the gas-liquid separation pipe faces the bottom of the gas-liquid separator and is positioned below a water seal liquid level; the overflow plate is vertically arranged at the bottom of the shell, and two sides of the overflow plate are respectively arranged with the side wall of the shell in a sealing way, so that the liquid discharge pipe and the gas-liquid separation pipe are separated in different areas;
The gas-liquid separator is arranged close to the bottom of the hydrogen storage tank or in a peripheral drainage ditch, and the bottom of the hydrogen storage tank is connected with the gas-liquid separation pipe through a drainage pipe;
The exhaust pipe is connected with the hydrogen exhaust pipeline.
The gas-liquid separation pipe is at the inside vertical setting of casing, and its bottom opening drainage, the upper portion opening is carminative, the gas-liquid mixture commodity circulation of hydrogen storage tank bottom emission to gas-liquid separation pipe, hydrogen is arranged to the casing in from upper portion open position, water is arranged to the casing in from lower part open position, realize hydrogen and water's separation, the exhaust duct of hydrogen through exhaust duct on separator upper portion and storage tank body arranges to the atmosphere in the separator, the water overflows once more through the overflow board in the separator, realize the secondary separation of gas-liquid, the hydrogen of separation flows to the hydrogen exhaust pipeline in from gas-liquid separation pipe's top exhaust duct, water is discharged through the fluid-discharge tube through the gas-liquid separator lateral wall. Adopt this system can separate the hydrogen of hydrogen storage tank bottom emission comparatively completely to carry to arrange hydrogen pipeline safety and discharge to the atmosphere in higher position, with the enrichment of hydrogen in the solution hydrogen storage tank bottom outside, there is the problem of potential safety hazard.
The upper end of the hydrogen exhaust pipeline is provided with a flame arrester which can prevent external flame from entering the hydrogen exhaust pipeline and prevent the flame from spreading in the hydrogen exhaust pipeline. The end part of the hydrogen exhaust pipeline is provided with a windproof exhaust cap which can prevent the air in any direction from generating a recharging phenomenon, ensure the smooth proceeding of hydrogen exhaust and also prevent rainwater from entering the pipeline.
preferably, the cross-sectional shape of the overflow plate is arc-shaped.
Further preferably, the height of the gas-liquid separation pipe is greater than the height of the overflow plate.
This facilitates the two-stage separation of gas and liquid.
still more preferably, the height ratio of the gas-liquid separation pipe to the overflow plate is 1.5 to 4: 1.
Still further preferably, the top of the gas-liquid separation pipe is of an arc-shaped bent structure. The hydrogen present in the pipe is used to prevent air from entering it.
Preferably, the drain pipe of the gas-liquid separator is positioned lower than the lowest position of the hydrogen storage tank.
So as to completely drain the water in the drain pipe.
Preferably, the sewage draining pipe is connected with the lowest part of the hydrogen storage tank. So as to completely drain the water in the drain pipe.
Preferably, the number of the hydrogen storage tanks is 1-N, N is greater than 1, the hydrogen storage tanks are arranged in parallel, and the bottom of each hydrogen storage tank is connected with the same gas-liquid separator.
the hydrogen storage tank may be multiple, such as 2, 3, 4, 5, 6 or even more.
Preferably, the liquid discharge pipe on the gas-liquid separator is of an arc structure, and a valve is arranged on the liquid discharge pipe.
The utility model has the advantages that:
The gas-liquid separation pipe is at the inside vertical setting of casing, and its bottom opening drainage, the upper portion opening is carminative, the gas-liquid mixture commodity circulation of hydrogen storage tank bottom emission to gas-liquid separation pipe, hydrogen is arranged to the casing in from upper portion open position, water is arranged to the casing in from lower part open position, realize hydrogen and water's separation, the exhaust duct of hydrogen through exhaust duct on separator upper portion and storage tank body arranges to the atmosphere in the separator, the water overflows once more through the overflow board in the separator, realize the secondary separation of gas-liquid, the hydrogen of separation flows to the hydrogen exhaust pipeline in from gas-liquid separation pipe's top exhaust duct, water is discharged through the fluid-discharge tube through the gas-liquid separator lateral wall. Adopt this system can separate the hydrogen of hydrogen storage tank bottom emission comparatively completely to carry to arrange hydrogen pipeline safety and discharge in the atmosphere, with the enrichment of hydrogen in the solution hydrogen storage tank bottom outside, there is the problem of potential safety hazard.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is a schematic diagram of the overall structure of the system for reducing the risk of hydrogen discharge;
FIG. 2 is a schematic structural view of a cross-sectional view of a gas-liquid separator according to the present invention;
fig. 3 is a flow chart of the system for reducing the risk of hydrogen discharge.
The device comprises a hydrogen storage tank 1, a hydrogen storage tank 2, a valve 3, a gas-liquid separation pipe 4, a gas-liquid separator 5, a liquid discharge pipe 6, an overflow plate 7, a blow-off pipe 8, an exhaust pipe 9, a flame arrester 10, an exhaust cap 11 and a hydrogen storage tank unit.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
as shown in fig. 1, a system for reducing hydrogen risk of hydrogen discharge comprises a hydrogen storage tank 1, a hydrogen discharge pipeline and a gas-liquid separator 3, wherein the hydrogen storage tank 1 is fixedly installed through a base, one end of the hydrogen discharge pipeline is connected with the top of the hydrogen storage tank 1, the other end of the hydrogen discharge pipeline extends upwards, and the end of the hydrogen discharge pipeline is sequentially provided with a flame arrester 9 and an exhaust cap 10. As shown in fig. 1 and 2, the gas-liquid separator comprises a shell, a gas-liquid separation pipe 3 and an overflow plate 6, wherein an exhaust pipe 2 is arranged above the shell, a drain pipe 5 is arranged below the shell, the gas-liquid separation pipe is vertically arranged in the shell, and the lower end of the gas-liquid separation pipe faces the bottom of the gas-liquid separator and is positioned below the water seal liquid level; the overflow plate 6 is vertically arranged at the bottom of the shell, and two sides of the overflow plate 6 are respectively arranged with the side wall of the shell in a sealing way, so that the liquid discharge pipe 5 and the gas-liquid separation pipe 3 are separated in different areas; the gas-liquid separator is arranged close to the bottom of the hydrogen storage tank 1, the bottom of the hydrogen storage tank 1 is connected with the gas-liquid separation pipe 3 through a drain pipe 7, and the distance between the connection part and the lowest end of the gas-liquid separation pipe 3 is less than 1/2 of the total length of the gas-liquid separation pipe 3; the exhaust pipe 2 is connected with a hydrogen exhaust pipeline. The cross-sectional shape of the overflow plate 6 is arc-shaped. The height of the gas-liquid separation pipe 3 is larger than that of the overflow plate, and the height ratio of the gas-liquid separation pipe 3 to the overflow plate 6 is 1.5-4: 1. The position of a liquid discharge pipe 5 of the gas-liquid separator is lower than the lowest position of the hydrogen storage tank 1. Facilitating the complete drainage of the water in the drain pipe 5. The blow-off pipe 7 is connected with the lowest part of the hydrogen storage tank 1.
Gas-liquid separation pipe 3 is at the inside vertical setting of casing, and its bottom opening drainage, the upper portion opening is carminative, the gas-liquid mixture commodity circulation of 1 bottom emission of hydrogen storage tank to gas-liquid separation pipe 3, hydrogen is arranged to the casing in from upper portion open position, water is arranged to the casing in from lower part open position, realize the separation of hydrogen and water, the exhaust duct of 4 upper portion blast pipes 8 of gas-liquid separator and storage tank body of hydrogen in the gas-liquid separator discharges to the atmosphere, the water overflows once more through the overflow board in the separator, realize the secondary separation of gas-liquid, the hydrogen of separation flows to the hydrogen discharge pipeline in from gas-liquid separation pipe's top blast pipe, water is discharged through the fluid-discharge tube through the gas-liquid separator lateral wall. Adopt this system can separate the hydrogen of hydrogen storage tank bottom emission comparatively completely to carry to arrange hydrogen pipeline safety and discharge to the atmosphere in higher position, with the enrichment of hydrogen in the solution hydrogen storage tank bottom outside, there is the problem of potential safety hazard.
As shown in fig. 3, the hydrogen storage tank may also be a hydrogen storage tank unit, including a plurality of hydrogen storage tanks arranged in parallel, and the hydrogen storage tank may be a plurality, such as 2, 3, 4, 5, 6 or even more. The bottom of each hydrogen storage tank 1 is connected with the same gas-liquid separator 4.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. A system for reducing the risk of hydrogen storage and discharge, comprising: the device comprises a hydrogen exhaust pipeline and a gas-liquid separator, wherein one end of the hydrogen exhaust pipeline is connected with the top of a hydrogen storage tank, the other end of the hydrogen exhaust pipeline extends upwards, and a flame arrester and an exhaust cap are sequentially arranged at the end part of the hydrogen exhaust pipeline;
the gas-liquid separator comprises a shell, a gas-liquid separation pipe and an overflow plate, wherein an exhaust pipe is arranged above the shell, a liquid discharge pipe is arranged below the shell, the gas-liquid separation pipe is vertically arranged in the shell, and the lower end of the gas-liquid separation pipe faces the bottom of the gas-liquid separator and is positioned below a water seal liquid level; the overflow plate is vertically arranged at the bottom of the shell, and two sides of the overflow plate are respectively arranged with the side wall of the shell in a sealing way, so that the liquid discharge pipe and the gas-liquid separation pipe are separated in different areas;
The gas-liquid separator is arranged close to the bottom of the hydrogen storage tank or in a peripheral drainage ditch, and the bottom of the hydrogen storage tank is connected with the gas-liquid separation pipe through a drainage pipe;
The exhaust pipe is connected with the hydrogen exhaust pipeline.
2. a system for reducing the risk of hydrogen storage discharge according to claim 1, wherein: the cross section of the overflow plate is arc-shaped.
3. A system for reducing the risk of hydrogen storage discharge according to claim 1, wherein: the height of the gas-liquid separation pipe is greater than that of the overflow plate.
4. a system for reducing the risk of hydrogen storage discharge according to claim 3, wherein: the height ratio of the gas-liquid separation pipe to the overflow plate is 1.5-4: 1.
5. A system for reducing the risk of hydrogen storage discharge according to claim 3, wherein: the top of the gas-liquid separation pipe is of an arc-shaped bending structure.
6. A system for reducing the risk of hydrogen storage discharge according to claim 1, wherein: and the liquid discharge pipe of the gas-liquid separator is lower than the lowest part of the hydrogen storage tank.
7. A system for reducing the risk of hydrogen storage discharge according to claim 6, wherein: the blow-off pipe is connected with the lowest part of the hydrogen storage tank.
8. a system for reducing the risk of hydrogen storage discharge according to claim 1, wherein: the number of the hydrogen storage tanks is 1-N, N is not less than 1, the hydrogen storage tanks are arranged in parallel, and the bottom of each hydrogen storage tank is connected with the same gas-liquid separator.
9. A system for reducing the risk of hydrogen storage discharge according to claim 1, wherein: and a liquid discharge pipe on the gas-liquid separator is of an arc-shaped structure, and a valve is arranged on the liquid discharge pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822242437.2U CN209782230U (en) | 2018-12-28 | 2018-12-28 | System for reducing hydrogen storage and discharge risk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822242437.2U CN209782230U (en) | 2018-12-28 | 2018-12-28 | System for reducing hydrogen storage and discharge risk |
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| Publication Number | Publication Date |
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| CN209782230U true CN209782230U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822242437.2U Active CN209782230U (en) | 2018-12-28 | 2018-12-28 | System for reducing hydrogen storage and discharge risk |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022915A (en) * | 2019-12-23 | 2020-04-17 | 潍柴动力股份有限公司 | High-pressure rapid hydrogenation method and system for fuel cell vehicle |
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2018
- 2018-12-28 CN CN201822242437.2U patent/CN209782230U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022915A (en) * | 2019-12-23 | 2020-04-17 | 潍柴动力股份有限公司 | High-pressure rapid hydrogenation method and system for fuel cell vehicle |
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