CN115405798A - Sealing mechanism and method for connection of hydrogen conveying pipeline and hydrogen storage device - Google Patents
Sealing mechanism and method for connection of hydrogen conveying pipeline and hydrogen storage device Download PDFInfo
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- CN115405798A CN115405798A CN202211148377.2A CN202211148377A CN115405798A CN 115405798 A CN115405798 A CN 115405798A CN 202211148377 A CN202211148377 A CN 202211148377A CN 115405798 A CN115405798 A CN 115405798A
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- sealing
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- glue injection
- injection part
- elastic glue
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/17—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/175—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by using materials which fill a space around the pipe before hardening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention provides a sealing mechanism, a method and a hydrogen storage device for a hydrogen conveying pipeline joint.A sealing cavity is formed between a first sealing sleeve and a second sealing sleeve, a first elastic glue injection part and a second elastic glue injection part are arranged in the sealing cavity, when the gas pressure in the second sealing sleeve is greater than a threshold value, a pressure valve is opened, hydrogen is discharged into the sealing cavity, so that the first elastic glue injection part and the second elastic glue injection part are triggered, a first sealing medium and a second sealing medium are injected into the second sealing sleeve, and the first sealing medium and the second sealing medium are solidified after being mixed, so that the position where hydrogen leakage occurs at the hydrogen conveying pipeline joint is sealed, the hydrogen is prevented from being directly contacted with the outside during hydrogen leakage, and meanwhile, when the sealed hydrogen conveying pipeline joint leaks again, the first elastic glue injection part and the second elastic glue injection part can be triggered again to inject glue into the second sealing sleeve, so that sealing is performed again.
Description
Technical Field
The invention relates to the field of hydrogen sealing, in particular to a sealing mechanism and method for a hydrogen conveying pipeline joint and a hydrogen storage device.
Background
After the hydrogen junction among the prior art takes place to reveal, need change the sealing member of hydrogen junction, the hydrogen of revealing in addition directly contacts with the outside air, causes the potential safety hazard easily.
The above problems are currently in need of solution.
Disclosure of Invention
The invention aims to provide a sealing mechanism and a sealing method for a connection part of a hydrogen conveying pipeline and a hydrogen storage device.
In order to solve the above technical problem, the present invention provides a sealing mechanism for a connection of a hydrogen gas delivery pipeline, comprising:
the first sealing sleeve, the second sealing sleeve, the first elastic injection part and the second elastic injection part;
the second sealing sleeve is arranged in the first sealing sleeve;
a sealing cavity is formed between the first sealing sleeve and the second sealing sleeve;
the second sealing sleeve is arranged on the connection part of the hydrogen conveying pipeline and is suitable for sealing the connection part of the hydrogen conveying pipeline;
the first elastic glue injection part and the second elastic glue injection part are arranged in the sealing cavity and are respectively arranged on two sides of the second sealing sleeve;
the second sealing sleeve is provided with a pressure valve, when hydrogen leaks at the connection part of the hydrogen conveying pipeline, and the gas pressure in the second sealing sleeve is greater than a threshold value, the pressure valve is opened to discharge the hydrogen into the sealing cavity;
the first elastic glue injection part and the second elastic glue injection part are provided with glue injection channels connected with the second seal sleeve and are suitable for injecting a first sealing medium and a second sealing medium into the second seal sleeve when hydrogen enters the seal cavity, and the first sealing medium and the second sealing medium are mixed and then solidified, so that the position of the hydrogen leakage at the joint of the hydrogen conveying pipeline is sealed.
Furthermore, the first elastic glue injection part and the second elastic glue injection part are both in a circular truncated cone shape, and the first elastic glue injection part and the second elastic glue injection part are both provided with jacks suitable for a hydrogen conveying pipeline to pass through;
the top surfaces of the first elastic glue injection part and the second elastic glue injection part are arranged oppositely and are respectively and fixedly arranged on two side walls of the second sealing sleeve.
Further, the sealing mechanism for the connection of the hydrogen conveying pipeline further comprises a first push ring and a second push ring;
the first push ring and the second push ring are respectively clamped on the side walls of the first elastic glue injection part and the second elastic glue injection part;
the first push ring and the second push ring are both abutted against the inner wall of the first seal sleeve;
the outer walls of the first push ring, the second push ring and the second sealing sleeve and the inner wall of the first sealing sleeve form a pneumatic cavity;
when the gas pressure in the second sealing sleeve is larger than a threshold value, the pressure valve is opened, hydrogen is discharged into the pneumatic cavity, so that the gas pressure in the pneumatic cavity is increased until the first push ring and the second push ring are pushed to move back to back, the first elastic glue injection part and the second elastic glue injection part are extruded, and a first sealing medium and a second sealing medium are injected into the second sealing sleeve.
Further, the inner wall of the first sealing sleeve is provided with hydrogen storage alloy;
the hydrogen storage alloy is suitable for absorbing hydrogen in the pneumatic cavity, so that the first sealing medium and the second sealing medium are solidified after being mixed, the residual hydrogen in the pneumatic cavity is absorbed after the position of the hydrogen leakage at the connection position of the hydrogen conveying pipeline is sealed, and the pressure valve is closed when the gas pressure in the second sealing sleeve is smaller than a threshold value.
Further, the pressure valve is further adapted to open when hydrogen gas leaks again, and when the gas pressure in the second sealing sleeve is greater than a threshold value, the pressure valve discharges the hydrogen gas into the pneumatic cavity, so that the gas pressure in the pneumatic cavity is increased until the first push ring and the second push ring are pushed to move back and forth, the first elastic glue injection portion and the second elastic glue injection portion are squeezed, a first sealing medium and a second sealing medium are injected into the second sealing sleeve, and the first sealing medium and the second sealing medium are solidified after being mixed, so that the hydrogen gas leakage part is sealed again.
Furthermore, a plurality of barb rings are fixedly arranged on the inner wall of the first seal sleeve;
the barb ring is suitable for when first throw-out collar and second throw-out collar moves back to back, will first throw-out collar and second throw-out collar joint.
Furthermore, the inner wall of the first sealing sleeve is provided with symmetrically arranged inclined planes, and the diameter of the inner wall in the middle of the first sealing sleeve is larger than the diameters of the inner walls at the two ends.
Further, the sealing mechanism for the connection of the hydrogen conveying pipeline further comprises a first storage cavity and a second storage cavity;
the first storage cavity and the second storage cavity are arranged on two sides of the first sealing sleeve;
the first elastic glue injection part and the second elastic glue injection part are respectively suitable for blocking water outlets of the first storage cavity and the second storage cavity;
when the first push ring and the second push ring move back to back, the water outlets of the first storage cavity and the second storage cavity are suitable to be opened, so that cooling water in the first storage cavity and the second storage cavity is discharged, and the first push ring and the second push ring are cooled.
The invention also provides a hydrogen storage device which is suitable for sealing the connection position of the horizontal hydrogen conveying pipeline by adopting the sealing mechanism for the connection position of the hydrogen conveying pipeline.
The invention also provides a sealing method adopting the sealing mechanism for the connection part of the hydrogen conveying pipeline, which comprises the following steps:
sealing the joint of the hydrogen conveying pipeline through the first sealing sleeve, the second sealing sleeve, the first elastic glue injection part and the second elastic glue injection part;
when hydrogen leakage occurs at the connection part of the hydrogen conveying pipeline and the gas pressure in the second sealing sleeve is greater than a threshold value, the pressure valve is opened, and hydrogen is discharged into the sealing cavity;
increasing the pressure in the sealing cavity, and triggering the first elastic glue injection part and the second elastic glue injection part to inject a first sealing medium and a second sealing medium into the second sealing sleeve;
the first sealing medium and the second sealing medium are solidified after being mixed, so that the position where hydrogen leakage occurs at the connection position of the hydrogen conveying pipeline is sealed;
when the hydrogen leaks again and the gas pressure in the second sealing sleeve is greater than the threshold value, the pressure valve is opened to discharge the hydrogen into the sealing cavity;
increasing the pressure in the sealing cavity, and triggering the first elastic glue injection part and the second elastic glue injection part to continue injecting the first sealing medium and the second sealing medium into the second sealing sleeve;
and the first sealing medium and the second sealing medium are solidified after being mixed, so that the hydrogen is sealed at the position where the hydrogen leaks again.
The sealing mechanism, the method and the hydrogen storage device for the connection part of the hydrogen conveying pipeline have the advantages that the first elastic glue injection part and the second elastic glue injection part are arranged in the sealing cavity formed between the first sealing sleeve and the second sealing sleeve, when the gas pressure in the second sealing sleeve is larger than a threshold value, the pressure valve is opened, hydrogen is discharged into the sealing cavity, the first elastic glue injection part and the second elastic glue injection part are triggered, the first sealing medium and the second sealing medium are injected into the second sealing sleeve, the first sealing medium and the second sealing medium are solidified after being mixed, the position of the connection part of the hydrogen conveying pipeline where hydrogen leaks is sealed, direct contact with the outside is avoided when hydrogen leaks, and meanwhile, when the sealed connection part of the hydrogen conveying pipeline leaks again, the first elastic glue injection part and the second elastic glue injection part can be triggered again to inject glue into the second sealing sleeve, so that the sealing sleeve is sealed again.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram of a sealing mechanism for a connection part of a hydrogen conveying pipeline with a barb ring provided by the invention.
Fig. 2 is a schematic structural diagram of a sealing mechanism for a connection position of a hydrogen conveying pipeline with a barb ring, which is pushed by a first push ring and a second push ring provided by the invention.
FIG. 3 is a schematic structural diagram of a sealing mechanism for a connection of a hydrogen conveying pipeline with an inclined surface provided by the invention.
Fig. 4 is a schematic structural diagram of a sealing mechanism for a connection of a hydrogen gas conveying pipeline with an inclined surface after being pushed by a first push ring and a second push ring provided by the invention.
Fig. 5 is a cross-sectional view of a second sealing boot glue injection passage provided by the present invention.
Fig. 6 is a schematic structural diagram of a hydrogen storage device provided by the present invention.
In the figure: 100. the connection part of the hydrogen conveying pipeline uses a sealing mechanism; 110. a first seal cartridge; 120. a second seal cartridge; 121. an elastic pad; 130. a first elastic glue injection part; 131. a glue injection channel; 140. a second elastic glue injection part; 150. a first push ring; 160. a second push ring; 170. a pneumatic chamber; 180. a barb ring; 181. a bevel; 191. a first storage chamber; 192. a second storage chamber; 210. a hydrogen storage bottle; 220. a hydrogen gas delivery line.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams each illustrating the basic structure of the present invention only in a schematic manner, and thus show only the constitution related to the present invention.
Example 1
Referring to fig. 1 to 6, embodiment 1 provides a sealing mechanism 100 for a connection of a hydrogen gas conveying pipeline, including: a first sealing boot 110, a second sealing boot 120, a first elastic glue injection part 130 and a second elastic glue injection part 140; the second sealing boot 120 is disposed within the first sealing boot 110; a sealed cavity is formed between the first sealing sleeve 110 and the second sealing sleeve 120; the second sealing sleeve 120 is arranged at the joint of the hydrogen conveying pipeline 220 and is suitable for sealing the joint of the hydrogen conveying pipeline 220; the first elastic glue injection part 130 and the second elastic glue injection part 140 are arranged in the sealed cavity and are respectively arranged at two sides of the second sealing sleeve 120; the second sealing sleeve 120 is provided with a pressure valve, when hydrogen leakage occurs at the joint of the hydrogen conveying pipeline 220, and the gas pressure in the second sealing sleeve 120 is greater than a threshold value, the pressure valve is opened to discharge the hydrogen into the sealed cavity; the first elastic glue injection part 130 and the second elastic glue injection part 140 are provided with glue injection channels 131 connected with the second sealing sleeve 120 and are suitable for injecting a first sealing medium and a second sealing medium into the second sealing sleeve 120 when hydrogen enters a sealing cavity, and the first sealing medium and the second sealing medium are mixed and then solidified, so that the position of the hydrogen leakage at the joint of the hydrogen conveying pipeline 220 is sealed. The first elastic glue injection part 130 and the second elastic glue injection part 140 are arranged in a sealing cavity formed between the first sealing sleeve 110 and the second sealing sleeve 120, when the gas pressure in the second sealing sleeve 120 is greater than a threshold value, the pressure valve is opened, hydrogen is discharged into the sealing cavity, so that the first elastic glue injection part 130 and the second elastic glue injection part 140 are triggered, a first sealing medium and a second sealing medium are injected into the second sealing sleeve 120, and the first sealing medium and the second sealing medium are solidified after being mixed, so that the position where the hydrogen leakage occurs at the connection part of the hydrogen conveying pipeline 220 is sealed, the hydrogen is prevented from being directly contacted with the outside during hydrogen leakage, and meanwhile, when the leakage occurs again at the connection part of the sealed hydrogen conveying pipeline 220, the first elastic glue injection part 130 and the second elastic glue injection part 140 can be triggered again to inject glue into the second sealing sleeve 120, so that sealing is performed again.
In this embodiment, the first elastic glue injection part 130 and the second elastic glue injection part 140 are both in a circular truncated cone shape, and the first elastic glue injection part 130 and the second elastic glue injection part 140 are both provided with insertion holes suitable for the hydrogen gas conveying pipeline 220 to pass through; the top surfaces of the first elastic injection molding part 130 and the second elastic injection molding part 140 are opposite to each other and are respectively and fixedly disposed on two side walls of the second sealing sleeve 120.
It should be noted that the first elastic glue injection part 130 and the second elastic glue injection part 140 are made of elastic materials, and glue storage cavities are arranged in the first elastic glue injection part 130 and the second elastic glue injection part 140. The first sealing medium is in a liquid state when stored in the glue storage cavity of the first elastic glue injection part 130, and the second sealing medium is in a liquid state when stored in the glue storage cavity of the second elastic glue injection part 140. Preferably, the first sealing medium is glue A in glue AB, and the second sealing medium is glue B in glue AB.
In this embodiment, an elastic pad 121 is disposed in the glue injection channel 131, a plurality of liquid outlets are disposed on the elastic pad 121, when the first elastic glue injection part 130 and the second elastic glue injection part 140 are not extruded, the elastic pad 121 is in a natural state, the liquid outlets are in a closed state, when the first elastic glue injection part 130 and the second elastic glue injection part 140 are extruded, the elastic pad 121 deforms, the liquid outlets are opened, and at this time, the first sealing medium and the second sealing medium are sprayed into the second sealing sleeve 120 from the corresponding glue injection channel 131.
Preferably, in order to prevent the first sealing medium and the second sealing medium from being pushed back from the glue injection channel 131 when the pressure in the second sealing boot increases, in this embodiment, a one-way valve is further disposed in the glue injection channel 131, and the first sealing medium and the second sealing medium can only be pressed into the second sealing boot from the first elastic glue injection portion 130 and the second elastic glue injection portion 140, and will not flow back due to the increase of the pressure in the second sealing boot.
In this embodiment, the sealing mechanism 100 for hydrogen gas delivery pipeline connection further includes a first push ring 150 and a second push ring 160; the first push ring 150 and the second push ring 160 are respectively clamped on the side walls of the first elastic glue injection part 130 and the second elastic glue injection part 140; the first push ring 150 and the second push ring 160 are both abutted against the inner wall of the first sealing sleeve 110; the first thrust ring 150, the second thrust ring 160, the outer wall of the second seal cartridge 120, and the inner wall of the first seal cartridge 110 form a pneumatic chamber 170; when the gas pressure in the second sealing sleeve 120 is greater than the threshold value, the pressure valve is opened to discharge hydrogen into the pneumatic cavity 170, so that the gas pressure in the pneumatic cavity 170 is increased until the first push ring 150 and the second push ring 160 are pushed to move back to back, so that the first elastic glue injection part 130 and the second elastic glue injection part 140 are extruded, and then the first sealing medium and the second sealing medium are injected into the second sealing sleeve 120. It should be noted that the pressure generated by the first pneumatic chamber 170 after injecting hydrogen is sufficient to push the first push ring 150 and the second push ring 160 to move back and forth. It should be noted that the pneumatic chamber 170 is sealed against hydrogen, and leaked hydrogen enters the pneumatic chamber 170 for storage, so as to prevent the hydrogen from being directly exposed to air.
In this embodiment, the inner wall of the first sealing sleeve 110 is provided with a hydrogen storage alloy; the hydrogen storage alloy is suitable for absorbing hydrogen in the pneumatic cavity 170, so that the first sealing medium and the second sealing medium are solidified after being mixed, the residual hydrogen in the pneumatic cavity 170 is absorbed after the position of the hydrogen leakage at the joint of the hydrogen conveying pipeline 220 is sealed, and the pressure valve is closed when the gas pressure in the second sealing sleeve 120 is smaller than a threshold value. The hydrogen in the pneumatic cavity 170 is absorbed by the hydrogen storage alloy, so that the hydrogen is prevented from being stored in the pneumatic cavity 170 for a long time, and potential safety hazards are caused.
In this embodiment, the pressure valve is further adapted to open when hydrogen gas leaks again, and when the gas pressure in the second sealing boot 120 is greater than a threshold value, the pressure valve discharges hydrogen gas into the pneumatic cavity 170, so that the gas pressure in the pneumatic cavity 170 increases, until the first push ring 150 and the second push ring 160 are pushed to move away from each other, so as to squeeze the first elastic glue injection portion 130 and the second elastic glue injection portion 140, and further inject the first sealing medium and the second sealing medium into the second sealing boot 120, and the first sealing medium and the second sealing medium solidify after being mixed, so as to seal the hydrogen gas leakage again. By sealing the second sealing sleeve 120 in a sectional manner, the service life of the sealing mechanism can be prolonged, and frequent replacement of the sealing mechanism is avoided.
In this embodiment, a plurality of barb rings 180 are fixedly disposed on the inner wall of the first sealing sleeve 110; the barb ring 180 is adapted to snap-fit the first push ring 150 and the second push ring 160 when the first push ring 150 and the second push ring 160 move away from each other. After the hydrogen storage alloy absorbs hydrogen in the pneumatic cavity 170, the first elastic glue injection part 130 and the second elastic glue injection part 140 rebound to clamp the first push ring 150 and the second push ring 160 on the barb ring 180, thereby preventing the first push ring 150 and the second push ring 160 from retreating.
In other embodiments, the inner wall of the first sealing boot 110 is provided with symmetrically arranged inclined planes 181, and the diameter of the inner wall of the middle portion of the first sealing boot 110 is greater than the diameters of the inner walls of the two ends. After the hydrogen storage alloy absorbs hydrogen in the pneumatic cavity 170, the first elastic glue injection part 130 and the second elastic glue injection part 140 rebound to clamp the first push ring 150 and the second push ring 160 on the inclined surface 181, thereby preventing the first push ring 150 and the second push ring 160 from retreating.
In this embodiment, the sealing mechanism 100 for hydrogen gas supply line connection further includes a first storage chamber 191 and a second storage chamber 192; the first storage chamber 191 and the second storage chamber 192 are disposed at both sides of the first sealing sleeve 110; the first elastic glue injection part 130 and the second elastic glue injection part 140 are respectively suitable for blocking water outlets of the first storage cavity 191 and the second storage cavity 192; when the first push ring 150 and the second push ring 160 move away from each other, the water outlets of the first storage cavity 191 and the second storage cavity 192 are opened, so that the cooling water in the first storage cavity 191 and the cooling water in the second storage cavity 192 are discharged, and the first push ring 150 and the second push ring 160 are cooled. The first push ring 150 and the second push ring 160 are cooled by the cooling water, so that the hydrogen gas is prevented from being exploded due to heat generated when the first push ring 150 and the second push ring 160 are pushed.
The invention also provides a hydrogen storage device which is suitable for sealing the connection position of the horizontal hydrogen conveying pipeline 220 by the sealing mechanism 100 at the connection position of the hydrogen conveying pipeline. The hydrogen storage device includes a hydrogen storage bottle 210 and a hydrogen delivery line 220. By arranging the first elastic glue injection part 130 and the second elastic glue injection part 140 in a sealed cavity formed between the first sealing sleeve 110 and the second sealing sleeve 120, when the gas pressure in the second sealing sleeve 120 is greater than a threshold value, the pressure valve is opened, hydrogen is discharged into the sealed cavity, so that the first elastic glue injection part 130 and the second elastic glue injection part 140 are triggered, a first sealing medium and a second sealing medium are injected into the second sealing sleeve 120, and the first sealing medium and the second sealing medium are solidified after being mixed, so that the position where the hydrogen leakage occurs at the connection part of the hydrogen conveying pipeline 220 is sealed, the hydrogen is prevented from directly contacting with the outside during the hydrogen leakage, and meanwhile, when the sealed connection part of the hydrogen conveying pipeline 220 leaks again, the first elastic glue injection part 130 and the second elastic glue injection part 140 can be triggered again to inject glue into the second sealing sleeve 120, so that the sealing is performed again.
The invention also provides a sealing method adopting the sealing mechanism 100 for the connection part of the hydrogen conveying pipeline, which comprises the following steps: the joint of the hydrogen conveying pipeline 220 is sealed through the first sealing sleeve 110, the second sealing sleeve 120, the first elastic glue injection part 130 and the second elastic glue injection part 140; when hydrogen leaks at the connection part of the hydrogen conveying pipeline 220 and the gas pressure in the second sealing sleeve 120 is greater than a threshold value, the pressure valve is opened to discharge the hydrogen into the sealing cavity; increasing the pressure in the seal cavity, and triggering the first elastic glue injection part 130 and the second elastic glue injection part 140 to inject a first sealing medium and a second sealing medium into the second seal sleeve 120; the first sealing medium and the second sealing medium are solidified after being mixed, so that the position where hydrogen leakage occurs at the connection part of the hydrogen conveying pipeline 220 is sealed; when the hydrogen leaks again and the gas pressure in the second sealing sleeve 120 is greater than the threshold value, the pressure valve is opened to discharge the hydrogen into the sealing cavity; increasing the pressure in the seal cavity, triggering the first elastic glue injection part 130 and the second elastic glue injection part 140 to continue to inject the first sealing medium and the second sealing medium into the second seal sleeve 120; and the first sealing medium and the second sealing medium are solidified after being mixed, so that the hydrogen is sealed at the position where the hydrogen leaks again. By arranging the first elastic glue injection part 130 and the second elastic glue injection part 140 in a sealed cavity formed between the first sealing sleeve 110 and the second sealing sleeve 120, when the gas pressure in the second sealing sleeve 120 is greater than a threshold value, the pressure valve is opened, hydrogen is discharged into the sealed cavity, so that the first elastic glue injection part 130 and the second elastic glue injection part 140 are triggered, a first sealing medium and a second sealing medium are injected into the second sealing sleeve 120, and the first sealing medium and the second sealing medium are solidified after being mixed, so that the position where the hydrogen leakage occurs at the connection part of the hydrogen conveying pipeline 220 is sealed, the hydrogen is prevented from directly contacting with the outside during the hydrogen leakage, and meanwhile, when the sealed connection part of the hydrogen conveying pipeline 220 leaks again, the first elastic glue injection part 130 and the second elastic glue injection part 140 can be triggered again to inject glue into the second sealing sleeve 120, so that the sealing is performed again.
In summary, the sealing mechanism, the sealing method and the hydrogen storage device for the connection of the hydrogen conveying pipeline are provided by the invention, the first elastic glue injection part and the second elastic glue injection part are arranged in the sealing cavity formed between the first sealing sleeve and the second sealing sleeve, when the gas pressure in the second sealing sleeve is greater than the threshold value, the pressure valve is opened, hydrogen is discharged into the sealing cavity, so that the first elastic glue injection part and the second elastic glue injection part are triggered, the first sealing medium and the second sealing medium are injected into the second sealing sleeve, and the first sealing medium and the second sealing medium are solidified after being mixed, so that the position where the hydrogen leakage occurs at the connection of the hydrogen conveying pipeline is sealed, the direct contact with the outside during the hydrogen leakage is avoided, and meanwhile, when the sealed connection of the hydrogen conveying pipeline leaks again, the first elastic glue injection part and the second elastic glue injection part can be triggered again to inject glue into the second sealing sleeve, so that the sealing is performed again.
The components selected for use in the present application (components not illustrated for specific structures) are all common standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation. Moreover, the software programs referred to in the present application are all prior art, and the present application does not involve any improvement in the software programs.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described apparatus embodiments are merely illustrative, and for example, the division of the units into only one type of logical function may be implemented in other ways, and for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides a sealing mechanism for hydrogen conveying pipeline junction which characterized in that includes:
the first sealing sleeve, the second sealing sleeve, the first elastic injection part and the second elastic injection part;
the second sealing sleeve is arranged in the first sealing sleeve;
a sealing cavity is formed between the first sealing sleeve and the second sealing sleeve;
the second sealing sleeve is arranged on the connection part of the hydrogen conveying pipeline and is suitable for sealing the connection part of the hydrogen conveying pipeline;
the first elastic glue injection part and the second elastic glue injection part are arranged in the sealing cavity and are respectively arranged on two sides of the second sealing sleeve;
the second sealing sleeve is provided with a pressure valve, when hydrogen leaks at the connection part of the hydrogen conveying pipeline, and the gas pressure in the second sealing sleeve is greater than a threshold value, the pressure valve is opened to discharge the hydrogen into the sealing cavity;
the first elastic glue injection part and the second elastic glue injection part are provided with glue injection channels connected with the second seal sleeve and are suitable for injecting a first sealing medium and a second sealing medium into the second seal sleeve when hydrogen enters the seal cavity, and the first sealing medium and the second sealing medium are mixed and then solidified, so that the position of the hydrogen leakage at the joint of the hydrogen conveying pipeline is sealed.
2. The seal mechanism for hydrogen gas transport line connection according to claim 1,
the first elastic glue injection part and the second elastic glue injection part are both in a circular truncated cone shape, and the first elastic glue injection part and the second elastic glue injection part are both provided with jacks suitable for a hydrogen conveying pipeline to pass through;
the top surfaces of the first elastic glue injection part and the second elastic glue injection part are arranged oppositely and are respectively and fixedly arranged on two side walls of the second sealing sleeve.
3. The seal mechanism for a hydrogen gas transport line junction according to claim 2,
the sealing mechanism for the connection part of the hydrogen conveying pipeline further comprises a first push ring and a second push ring;
the first push ring and the second push ring are respectively clamped on the side walls of the first elastic glue injection part and the second elastic glue injection part;
the first push ring and the second push ring are both abutted against the inner wall of the first seal sleeve;
the outer walls of the first push ring, the second push ring and the second sealing sleeve and the inner wall of the first sealing sleeve form a pneumatic cavity;
when the gas pressure in the second sealing sleeve is larger than a threshold value, the pressure valve is opened, hydrogen is discharged into the pneumatic cavity, so that the gas pressure in the pneumatic cavity is increased until the first push ring and the second push ring are pushed to move back to back, the first elastic glue injection part and the second elastic glue injection part are extruded, and then a first sealing medium and a second sealing medium are injected into the second sealing sleeve.
4. The seal mechanism for hydrogen gas transport line connection according to claim 3,
the inner wall of the first sealing sleeve is provided with hydrogen storage alloy;
the hydrogen storage alloy is suitable for absorbing hydrogen in the pneumatic cavity, so that the first sealing medium and the second sealing medium are solidified after being mixed, the residual hydrogen in the pneumatic cavity is absorbed after the position of the hydrogen leakage at the connection position of the hydrogen conveying pipeline is sealed, and the pressure valve is closed when the gas pressure in the second sealing sleeve is smaller than a threshold value.
5. The seal mechanism for hydrogen gas transport line connection according to claim 4,
the pressure valve is further suitable for opening when hydrogen leaks again, and when the gas pressure in the second sealing sleeve is larger than a threshold value, the pressure valve discharges the hydrogen into the pneumatic cavity, so that the gas pressure in the pneumatic cavity is increased until the first push ring and the second push ring are pushed to move back to back, the first elastic glue injection part and the second elastic glue injection part are extruded, a first sealing medium and a second sealing medium are injected into the second sealing sleeve, and the first sealing medium and the second sealing medium are solidified after being mixed, so that the hydrogen leaking position is sealed again.
6. The seal mechanism for hydrogen gas transport line connection according to claim 4,
the inner wall of the first seal sleeve is fixedly provided with a plurality of barb rings;
the barb ring is suitable for when first push ring and second push ring moves back to back, will first push ring and second push ring joint.
7. The seal mechanism for a hydrogen gas transport line junction according to claim 4,
the inner wall of the first sealing sleeve is provided with symmetrically arranged inclined planes, and the diameter of the inner wall in the middle of the first sealing sleeve is larger than the diameters of the inner walls at the two ends.
8. The seal mechanism for hydrogen gas transport line connection according to claim 3,
the sealing mechanism for the connection of the hydrogen conveying pipeline further comprises a first storage cavity and a second storage cavity;
the first storage cavity and the second storage cavity are arranged on two sides of the first sealing sleeve;
the first elastic glue injection part and the second elastic glue injection part are respectively suitable for blocking water outlets of the first storage cavity and the second storage cavity;
when the first push ring and the second push ring move back to back, the water outlets of the first storage cavity and the second storage cavity are suitable to be opened, so that cooling water in the first storage cavity and the second storage cavity is discharged, and the first push ring and the second push ring are cooled.
9. A hydrogen storage device, characterized in that it is adapted to seal the connection of a horizontal hydrogen transportation line with a sealing mechanism using the hydrogen transportation line connection as claimed in any one of claims 1 to 8.
10. A method of sealing a connection of hydrogen transport pipes using a sealing mechanism according to any one of claims 1 to 8, the method comprising:
sealing the connection position of the hydrogen conveying pipeline through a first sealing sleeve, a second sealing sleeve, a first elastic glue injection part and a second elastic glue injection part;
when hydrogen leakage occurs at the connection part of the hydrogen conveying pipeline and the gas pressure in the second sealing sleeve is greater than a threshold value, the pressure valve is opened, and hydrogen is discharged into the sealing cavity;
increasing the pressure in the sealing cavity, and triggering the first elastic glue injection part and the second elastic glue injection part to inject a first sealing medium and a second sealing medium into the second sealing sleeve;
the first sealing medium and the second sealing medium are solidified after being mixed, so that the position where hydrogen leakage occurs at the connection position of the hydrogen conveying pipeline is sealed;
when the hydrogen leaks again and the gas pressure in the second sealing sleeve is greater than the threshold value, the pressure valve is opened to discharge the hydrogen into the sealing cavity;
increasing the pressure in the sealing cavity, and triggering the first elastic glue injection part and the second elastic glue injection part to continue injecting the first sealing medium and the second sealing medium into the second sealing sleeve;
and the first sealing medium and the second sealing medium are solidified after being mixed, so that the hydrogen is sealed at the position where the hydrogen leaks again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211148377.2A CN115405798A (en) | 2022-09-20 | 2022-09-20 | Sealing mechanism and method for connection of hydrogen conveying pipeline and hydrogen storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211148377.2A CN115405798A (en) | 2022-09-20 | 2022-09-20 | Sealing mechanism and method for connection of hydrogen conveying pipeline and hydrogen storage device |
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| CN115405798A true CN115405798A (en) | 2022-11-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117905962A (en) * | 2024-03-16 | 2024-04-19 | 江苏迪威高压科技股份有限公司 | Hydrogen pipeline connecting device |
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2022
- 2022-09-20 CN CN202211148377.2A patent/CN115405798A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117905962A (en) * | 2024-03-16 | 2024-04-19 | 江苏迪威高压科技股份有限公司 | Hydrogen pipeline connecting device |
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Application publication date: 20221129 |