CN117937349B - High-pressure gas storage warehouse cable threading sealing device - Google Patents

High-pressure gas storage warehouse cable threading sealing device Download PDF

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Publication number
CN117937349B
CN117937349B CN202410303117.0A CN202410303117A CN117937349B CN 117937349 B CN117937349 B CN 117937349B CN 202410303117 A CN202410303117 A CN 202410303117A CN 117937349 B CN117937349 B CN 117937349B
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CN
China
Prior art keywords
sealing
sleeve
cavity
gas storage
cable
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CN202410303117.0A
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Chinese (zh)
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CN117937349A (en
Inventor
秦全乐
陆希
姬阳
孙星
黄鹏
任美辰
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PowerChina Northwest Engineering Corp Ltd
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PowerChina Northwest Engineering Corp Ltd
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Priority to CN202410303117.0A priority Critical patent/CN117937349B/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/22Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L5/00Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02Sealing

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Abstract

The invention discloses a high-pressure gas storage cable threading sealing device, belongs to the technical field of underground gas storage, and can solve the problems that the high-pressure gas storage leaks gas due to improper sealing measures when the existing gas storage cable is threaded out, and certain danger exists. The device comprises: the plugging structure is arranged at the opening of the cavity of the gas storage and is used for plugging the opening of the cavity; the sleeve is arranged on the plugging structure in a penetrating way, one end of the sleeve extends into the cavity of the gas storage, and the other end of the sleeve is positioned outside the cavity and is used for guiding a cable in the cavity to the outside of the cavity; the sealing structure comprises a sealing piece and a sealing block, wherein the sealing piece is arranged at the end part of the sleeve in the cavity and is used for sealing the end part of the sleeve; the sealing block is poured and formed on one side, far away from the sleeve, of the sealing piece and is used for sealing a gap between cables on one side, far away from the sleeve, of the sealing piece. The cable threading seal device is used for cable threading seal of the gas storage.

Description

High-pressure gas storage warehouse cable threading sealing device
Technical Field
The invention relates to a cable threading sealing device of a high-pressure gas storage warehouse, and belongs to the technical field of underground gas storage warehouses.
Background
The compressed air energy storage technology is regarded as a large-scale energy storage technology with great potential due to the characteristics of large energy storage capacity, long service life, high efficiency, safety, reliability and the like, wherein the new excavation of hard caverns as the compressed air energy storage gas storage is a development trend.
Because the pressure of the compressed air is larger and is generally more than 10MPa, various monitoring devices are often required to be arranged in the gas storage, and the monitoring devices need to transmit monitoring signals to the outside of the gas storage for analysis through cables such as cables or signal wires, so that the cables need to pass through a plugging structure of the gas storage, the sealing of the passing-out structure becomes a key problem, and the improper cable sealing measures can cause the gas leakage of the high-pressure gas storage and have a certain danger.
Disclosure of Invention
The invention provides a high-pressure gas storage cable threading sealing device, which can solve the problems that the high-pressure gas storage leaks gas and has certain danger due to improper sealing measures when the existing gas storage cable passes out.
The invention provides a high-pressure gas storage warehouse cable threading sealing device, which comprises:
the plugging structure is arranged at the opening of the cavity of the gas storage and is used for plugging the opening of the cavity;
the sleeve is arranged on the plugging structure in a penetrating way, one end of the sleeve extends into the cavity of the gas storage, and the other end of the sleeve is positioned outside the cavity and is used for guiding a cable in the cavity to the outside of the cavity;
The sealing structure comprises a sealing piece and a sealing block, wherein the sealing piece is arranged at the end part of the sleeve pipe, which is positioned in the cavity, and is used for sealing the end part of the sleeve pipe; the sealing block is formed on one side, far away from the sleeve, of the sealing piece in a pouring mode and is used for sealing a gap between cables on one side, far away from the sleeve, of the sealing piece.
Optionally, the sealing structure further includes:
And the wire dividing groove is arranged inside the sealing block and is used for dividing all the cables into two parts.
Optionally, the number of the branching grooves is multiple, and the branching grooves are distributed at different positions of the cable; all cables are independently arranged in the threading holes of each wire dividing groove in a penetrating mode.
Optionally, the cable inside the cavity penetrates the sealing block from the top of the sealing block.
Optionally, the sealing structure further includes:
and the sealing layer is covered on the surface of the sealing block and is used for sealing the surface of the sealing block.
Optionally, the plugging piece is foam rubber.
Optionally, the sealing block is a concrete pier.
Optionally, the tube diameter of the sleeve is larger than the bundling diameter of all cables.
The invention has the beneficial effects that:
According to the high-voltage gas storage cable threading sealing device, the sleeve is arranged on the plugging structure in a penetrating mode, the sealing structure is arranged at the inner side port of the sleeve, and the sealing structure is used for sealing the inner side port of the sleeve, so that all cables are wrapped in the sealing block of the sealing structure, a gas leakage channel is avoided, and the problems that the high-voltage gas storage leaks gas due to improper sealing measures when the existing gas storage cable passes out and a certain danger exists are solved. The cable threading sealing device is simple in required materials, low in cost and convenient in construction operation, and can be used for rapidly and effectively performing site construction. If the cable of the monitoring equipment needs to be replaced, only the designed concrete sealing block needs to be chiseled out, so that great loss to the engineering is avoided. The invention is suitable for sealing all linear devices such as cables, pipelines, optical fibers and the like penetrating through the high-pressure gas storage plugging structure.
Drawings
FIG. 1 is a schematic diagram of a cable threading sealing device for a high-pressure gas storage tank according to an embodiment of the present invention;
Fig. 2 is a schematic view of a sleeve and a seal structure according to an embodiment of the present invention.
Reference numerals:
1. A plugging structure; 2. a gas storage; 3. a sleeve; 4. a sealing structure; 5. a cable; 6. a threading hole; 7. wire dividing grooves; 8. a sealing layer; 9. a sealing block; 10. a closure.
Detailed Description
The present invention is described in detail below with reference to examples, but the present invention is not limited to these examples.
The embodiment of the invention provides a high-pressure gas storage cable threading sealing device, as shown in fig. 1 and 2, comprising:
the plugging structure 1 is arranged at the opening of the cavity of the gas storage 2 and is used for plugging the opening of the cavity;
The sleeve 3 is arranged on the plugging structure 1 in a penetrating way, one end of the sleeve extends into the cavity of the gas storage 2, and the other end of the sleeve is positioned outside the cavity and is used for guiding the cable 5 in the cavity to the outside of the cavity;
And the sealing structure 4 is connected to the end part of the sleeve 3 positioned in the cavity and is used for sealing the end part of the sleeve 3 positioned in the cavity.
Wherein the diameter of the sleeve 3 is larger than the bundling diameter of all cables 5.
After the construction of the high-pressure gas storage warehouse 2 warehouse body structure is completed, embedding the sleeve 3 in the construction process of the concrete plugging structure 1, and for the subsequent cables 5 to pass through the plugging structure 1 for use, the sleeve 3 completely penetrates through the inner side and the outer side of the plugging structure 1, and the pipe diameter is determined according to the number of the cables 5 required to pass through, so that all the cables 5 can pass through the sleeve 3, and a certain redundant space is reserved; in practical applications, the sleeve 3 may be a steel tube.
All equipment cables 5 pass out of the sleeve 3 and are communicated with the inside and the outside of the plugging structure 1.
Further, the sealing structure 4 includes:
The plugging piece 10 is arranged at the end part of the sleeve 3 in the cavity and is used for plugging the end part of the sleeve 3;
And a sealing block 9 is formed on the side of the plugging piece 10 away from the sleeve 3 in a pouring manner and is used for sealing a gap between the cables 5 on the side of the plugging piece 10 away from the sleeve 3.
Because when the sealing block 9 is poured at the end part of the sleeve 3 in the cavity, the material of the sealing block 9 flows into the sleeve 3, in order to prevent the material of the sealing block 9 from flowing into the sleeve 3, a plugging piece 10 is arranged at the end part of the sleeve 3 before pouring, the end part of the sleeve 3 is plugged by the plugging piece 10, and pouring of the sealing block 9 is performed after plugging.
The sealing block 9 is formed on one side of the plugging piece 10 away from the sleeve 3 in a pouring way, namely the sealing block 9 is positioned on the inner side of the cavity; the sealing blocks 9 can seal the gap between the cables 5 inside the cavern. Meanwhile, the gas storage 2 is in a high-pressure environment during operation, so that the sealing block 9 can also resist the internal high pressure of the gas storage 2, and the damage to the plugging piece 10, the sleeve 3 and the like caused by the internal high pressure of the gas storage 2 is avoided, so that the whole sealing device is more stable. Preferably, the sealing block 9 is of a cuboid or square structure, and the length, width and height of the sealing block are 2-5 times of the diameter of the sleeve 3. This can better withstand the internal high pressure of the gas storage 2 while sufficiently sealing the gap between the indoor side wires 5.
In practical applications, the blocking member 10 may be a foam; the sealing blocks 9 may be concrete piers.
In the embodiment of the present invention, the sealing structure 4 further includes:
The parting grooves 7 are arranged inside the sealing blocks 9 and are used for separating all the cables 5 in pairs.
Further, the number of the wire dividing grooves 7 can be multiple, and the multiple wire dividing grooves 7 are distributed at different positions of the cable 5; all cables 5 are individually threaded in the threading holes 6 of each wire dividing groove 7.
Referring to fig. 2, on the side of the plugging piece 10 far away from the sleeve 3, according to the actual situation of the site, the multi-stage cable dividing groove 7 is adopted to clamp all cables 5 in the cable dividing groove 7, the cables 5 pass through the threading holes 6 in the cable dividing groove 7, so that all the cables 5 are ensured to be not contacted in pairs, and the gaps between the close-line cables 5 can be filled with concrete slurry poured subsequently.
The pipe orifice of the sleeve 3 positioned in the cavity is filled with foam rubber and other materials to form the plugging piece 10 in a compact mode, and concrete slurry is prevented from entering the sleeve 3 during pouring of the subsequent concrete piers.
The cables 5 in the multistage branching grooves 7 are poured into concrete piers, and the appearance of the concrete pier structure can be determined according to the actual situation of the site, so that all the cables 5 are wrapped by concrete and a certain concrete protection layer is reserved.
Preferably, the cable 5 inside the cavity penetrates the sealing block 9 from the top of the sealing block 9.
The cable 5 is penetrated into the surface of the concrete pier to select the uppermost concrete surface, so that the situation that holes are formed and blocked in the side templates during formwork erection is avoided, and concrete pouring construction is facilitated.
Further, the sealing structure 4 further includes:
And a sealing layer 8 covering the surface of the sealing block 9 for sealing the surface of the sealing block 9.
After the structure of the poured concrete sealing block 9 meets the strength requirement, the demolding is completed, and the spraying construction of the sealing layer 8 on the outer surface of the sealing block 9 is carried out, so that the complete cable 5 threading sealing device is formed. In practice, the seal layer 8 is integral with the seal layer of the inner wall of the reservoir.
According to the high-pressure gas storage cable threading sealing device provided by the invention, the sleeve 3 is arranged on the plugging structure 1 in a penetrating way, the sealing structure 4 is arranged at the inner side port of the sleeve 3, and the sealing structure 4 is used for sealing the inner side port of the sleeve 3, so that all cables 5 are wrapped in the sealing block 9 of the sealing structure 4, and a gas leakage channel is avoided, and the problems that the high-pressure gas storage 2 leaks gas due to improper sealing measures when the cables 5 of the existing gas storage 2 are penetrated out and a certain danger exists are solved. The cable threading sealing device is simple in required materials, low in cost and convenient in construction operation, and can be used for rapidly and effectively performing site construction. If the cable of the monitoring equipment needs to be replaced, the designed concrete sealing block 9 is only required to be chiseled off, so that great loss to the engineering is avoided. The invention is suitable for sealing the plugging structure 1 of all linear devices such as cables, pipelines, optical fibers and the like penetrating through the high-pressure gas storage 2.
While the application has been described in terms of preferred embodiments, it will be understood by those skilled in the art that various changes and modifications can be made without departing from the scope of the application, and it is intended that the application is not limited to the specific embodiments disclosed.

Claims (5)

1. A high pressure reservoir cable threading seal, the apparatus comprising:
the plugging structure is arranged at the opening of the cavity of the gas storage and is used for plugging the opening of the cavity;
the sleeve is arranged on the plugging structure in a penetrating way, one end of the sleeve extends into the cavity of the gas storage, and the other end of the sleeve is positioned outside the cavity and is used for guiding a cable in the cavity to the outside of the cavity;
The sealing structure comprises a sealing piece and a sealing block, wherein the sealing piece is arranged at the end part of the sleeve pipe, which is positioned in the cavity, and is used for sealing the end part of the sleeve pipe; the sealing block is formed on one side, far away from the sleeve, of the sealing piece in a pouring mode and is used for sealing a gap between cables on one side, far away from the sleeve, of the sealing piece;
the plugging piece is foam rubber; the sealing block is a concrete pier; the longitudinal section size of the sealing block is larger than that of the sleeve;
the cable inside the cavity penetrates into the sealing block from the top of the sealing block.
2. The apparatus of claim 1, wherein the sealing structure further comprises:
And the wire dividing groove is arranged inside the sealing block and is used for dividing all the cables into two parts.
3. The apparatus of claim 2, wherein the distribution grooves are a plurality of the distribution grooves distributed at different positions of the cable; all cables are independently arranged in the threading holes of each wire dividing groove in a penetrating mode.
4. The apparatus of claim 1, wherein the sealing structure further comprises:
and the sealing layer is covered on the surface of the sealing block and is used for sealing the surface of the sealing block.
5. The device of claim 1, wherein the tube diameter of the sleeve is greater than the bundling diameter of all cables.
CN202410303117.0A 2024-03-18 2024-03-18 High-pressure gas storage warehouse cable threading sealing device Active CN117937349B (en)

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Application Number Priority Date Filing Date Title
CN202410303117.0A CN117937349B (en) 2024-03-18 2024-03-18 High-pressure gas storage warehouse cable threading sealing device

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Application Number Priority Date Filing Date Title
CN202410303117.0A CN117937349B (en) 2024-03-18 2024-03-18 High-pressure gas storage warehouse cable threading sealing device

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CN117937349A CN117937349A (en) 2024-04-26
CN117937349B true CN117937349B (en) 2024-06-21

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Citations (2)

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Publication number Priority date Publication date Assignee Title
CN202503234U (en) * 2012-03-20 2012-10-24 上海市电力公司 Plugging device of cable hole of underground substation
CN206309244U (en) * 2016-12-19 2017-07-07 中国电建集团中南勘测设计研究院有限公司 A kind of gas storage seal door structure and the zawn gas storage for storage station

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202503234U (en) * 2012-03-20 2012-10-24 上海市电力公司 Plugging device of cable hole of underground substation
CN206309244U (en) * 2016-12-19 2017-07-07 中国电建集团中南勘测设计研究院有限公司 A kind of gas storage seal door structure and the zawn gas storage for storage station

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