CN214405649U - Natural gas line prevents equipment of leakage - Google Patents
Natural gas line prevents equipment of leakage Download PDFInfo
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- CN214405649U CN214405649U CN202120328120.XU CN202120328120U CN214405649U CN 214405649 U CN214405649 U CN 214405649U CN 202120328120 U CN202120328120 U CN 202120328120U CN 214405649 U CN214405649 U CN 214405649U
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- transmission chamber
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- gas transmission
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Abstract
The utility model discloses a natural gas pipeline leakage-proof device, which comprises a gas transmission chamber, a gas inlet pipe hermetically communicated with the bottom of the gas transmission chamber, a gas outlet pipe hermetically communicated with the upper part of the gas transmission chamber, and a natural gas concentration detector arranged outside the gas transmission chamber; a partition plate is arranged in the gas transmission chamber, an opening is arranged in the center of the partition plate and used as a vent, a sealed air bag is suspended at the vent, a miniature air pump is arranged outside the gas transmission chamber, and the miniature air pump is connected with the sealed air bag through a communicating pipe; the sealed air bag is in a calabash shape with a thin middle part and thick upper and lower parts, and the thin middle part of the sealed air bag is opposite to the vent hole. The utility model discloses an inflatable air-tight bag cuts off to cut off the natural gas transmission, make the shutoff nimble more, high-efficient, reach efficient leak protection effect.
Description
Technical Field
The utility model belongs to the technical field of the natural gas accessory, concretely relates to natural gas line prevents equipment of leakage.
Background
The natural gas is a clean and environment-friendly high-quality energy, almost does not contain sulfur, dust and other harmful substances, generates less carbon dioxide than other fossil fuels during combustion, contributes to reducing the formation of acid rain, and causes lower greenhouse effect, thereby being capable of fundamentally improving the environmental quality.
Natural gas mainly comprises methane and a small amount of ethane, propane, nitrogen and butane, and once the natural gas leaks, people can suffocate after the content of the natural gas reaches a certain degree, so that serious harm is caused, so that the safe use of the natural gas is particularly important, and an anti-leakage device needs to be installed on an indoor natural gas pipeline, for example, patent CN207554807U discloses a natural gas pipeline anti-leakage device, a channel of a gas conveying pipe is separated through an elastic screw rod and a gas stopping cover, and the function of preventing the natural gas from leaking is realized. But the device is prevented leaking by current natural gas, but its structure is comparatively complicated, and prevents leaking the effect generally.
SUMMERY OF THE UTILITY MODEL
To not enough and a difficult problem among the prior art, the utility model aims at providing a natural gas line prevents leaking equipment.
The utility model discloses a following technical scheme realizes:
the leakage-proof equipment for the natural gas pipeline comprises a gas transmission chamber, a gas inlet pipe, a gas outlet pipe and a natural gas concentration detector, wherein the gas inlet pipe is hermetically communicated with the bottom of the gas transmission chamber; a partition plate is arranged in the gas transmission chamber, an opening is arranged in the center of the partition plate and used as a vent, a sealed air bag is suspended at the vent, a miniature air pump is arranged outside the gas transmission chamber, and the miniature air pump is connected with the sealed air bag through a communicating pipe; the sealed air bag is in a calabash shape with a thin middle part and thick upper and lower parts, and the thin middle part of the sealed air bag is opposite to the vent hole.
Furthermore, the baffle adopts a splayed conical cylinder structure, and the center of the top of the baffle is provided with an air vent.
Furthermore, the inner wall of the vent is of a smooth arc structure.
Furthermore, the inner wall of the air vent is sleeved with a flexible protective pad.
Furthermore, a filter screen is arranged below the partition plate in the gas transmission chamber.
Furthermore, the air inlet pipe and the air outlet pipe are both provided with switch valves.
Compared with the prior art, the utility model discloses beneficial effect includes:
(1) the utility model discloses an inflatable air-tight bag cuts off to cut off the natural gas transmission, make the shutoff nimble more, high-efficient, reach efficient leak protection effect.
(2) The utility model discloses opening of miniature air pump and opening numerical value that natural gas concentration detector responded to and carry out the relevance, in case discovery indoor middle and natural gas concentration surpasses dangerous critical value, the start is aerifyd to miniature air pump, carries out the tympany to sealed gasbag, makes it the grow, and then plugs up the blow vent.
(3) The utility model discloses set up awl section of thick bamboo formula structural baffle, still can play certain air guide effect when keeping apart.
(4) The utility model discloses set up flexible protection pad and slick and sly arc structure at the air vent, form certain protection, cause sealed gasbag's damage when avoiding sealed gasbag bloated gas grow back and baffle contact.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Illustration of the drawings: 1-gas transmission chamber, 2-gas inlet pipe, 3-gas outlet pipe, 4-natural gas concentration detector, 5-vent, 6-filter screen, 7-partition plate, 8-sealed gas bag, 9-communicating pipe, 10-miniature air pump, 11-flexible protection pad and 12-switch valve.
In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like 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.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, integrally connected; can be mechanical connection and electrical connection; may be directly connected, indirectly connected through intervening agents, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood to be specific to those skilled in the art.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the natural gas pipeline leakage-proof device comprises a gas transmission chamber 1, a gas inlet pipe 2 hermetically communicated with the bottom of the gas transmission chamber 1, a gas outlet pipe 3 hermetically communicated with the upper part of the gas transmission chamber 1, and a natural gas concentration detector 4 installed outside the gas transmission chamber 1. The air inlet pipe 2 and the air outlet pipe 3 are respectively communicated with an external natural gas pipeline and an indoor pipeline in a sealing mode, and the natural gas concentration detector 4 is used for detecting the concentration of external natural gas.
The indoor baffle 7 that sets up of air delivery chamber 1, the center of baffle 7 sets up the opening and regards as blow vent 5, blow vent 5 department hangs sealed gasbag 8, 1 outer installation miniature air pump 10 of air delivery chamber, miniature air pump 10 links to each other through communicating pipe 9 with sealed gasbag 8, aerify through miniature air pump 10, bleed operation makes sealed gasbag 8 swell, shrink, 8 grow of sealed gasbag when swelling plug up blow vent 5, become flat when the sealed gasbag 8 of contraction type make blow vent 5 unblocked. The sealing air bag 8 is in a calabash shape with a thin middle part and a thick upper part and a thick lower part, and the thin middle area of the sealing air bag 8 is just opposite to the vent 5, so that the sealing effect is better during air blowing.
The start-stop of miniature air pump 10 is correlated with the numerical value of natural gas concentration detector 4 response, in case find indoor natural gas concentration surpass dangerous critical value, miniature air pump 10 aerifys the start-up, carries out the gassing to sealed gasbag 8, makes it grow, and then blocks up vent 5 to cut off the natural gas transmission, reach the leak protection effect. The conventional cover plate type seal needs an additional sealing structure, the seal is easy to be poor, and the inflatable plugging is more flexible and efficient.
The baffle 7 adopts a splayed conical cylinder structure, and the center of the top of the baffle is provided with the vent 5, so that the baffle 7 with the structure can also play a certain role in air guide.
The inner wall of the vent 5 is of a smooth arc structure, and the structure is located on the outer edge of the center of the top of the partition 7, so that the sealing air bag 8 can be in contact with the outer edge of the partition 7 after being inflated to be larger, and the sealing air bag is safer.
The cover has flexible protection pad 11 on the inner wall of blow vent 5, and the outer edge at baffle 7 top center is equipped with protection device promptly, causes sealed gasbag 8's damage when avoiding sealed gasbag 8 to inflate the grow back and contact with baffle 7. The flexible protection pad 11 may be made of a soft buffer protection material such as flame retardant rubber, flexible resin, etc.
A filter screen 6 is arranged below a partition plate 7 in the gas transmission chamber 1, and the filter screen 6 is used for intercepting input natural gas by sundry particles, so that the situation that the use of a user is influenced finally due to the existence of impurities in the conveying process is avoided.
All install ooff valve 12 on intake pipe 2 and the outlet duct 3, in case find indoor natural gas concentration surpass dangerous critical value, ooff valve 12 closes immediately, uses with sealed gasbag 8 cooperation and plays double-deck isolation effect, strengthens the leak protection effect.
In the concrete implementation, the utility model discloses still include the control system, the driving system of each unit, its structure, connection, constitution adopt conventional structure, no longer give consideration to here.
The foregoing merely illustrates preferred embodiments of the present invention, which are described in considerable detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes, modifications and substitutions can be made, which are all within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. An apparatus for preventing leakage in a natural gas pipeline, comprising: the device comprises a gas transmission chamber (1), a gas inlet pipe (2) hermetically communicated with the bottom of the gas transmission chamber (1), a gas outlet pipe (3) hermetically communicated with the upper part of the gas transmission chamber (1), and a natural gas concentration detector (4) arranged outside the gas transmission chamber (1); a partition plate (7) is arranged in the gas transmission chamber (1), an opening serving as a vent (5) is arranged in the center of the partition plate (7), a sealed air bag (8) is hung at the vent (5), a micro air pump (10) is installed outside the gas transmission chamber (1), and the micro air pump (10) is connected with the sealed air bag (8) through a communicating pipe (9); the sealing air bag (8) is in a gourd shape with a thin middle part and a thick upper part and a thick lower part, and the thin middle part of the sealing air bag (8) is over against the vent hole (5).
2. An apparatus for a gas pipeline leakage prevention, as recited in claim 1, wherein: the baffle (7) adopts a splayed conical tube structure, and the center of the top of the baffle is the vent hole (5).
3. An apparatus for a gas pipeline leakage prevention, as recited in claim 2, wherein: the inner wall of the air vent (5) is of a smooth arc structure.
4. An apparatus for a natural gas pipeline leakage prevention according to claim 2 or 3, wherein: the inner wall of the air vent (5) is sleeved with a flexible protective pad (11).
5. An apparatus for a gas pipeline leakage prevention, as recited in claim 1, wherein: and a filter screen (6) is arranged below the partition plate (7) in the gas transmission chamber (1).
6. An apparatus for a gas pipeline leakage prevention, as recited in claim 1, wherein: switch valves (12) are respectively arranged on the air inlet pipe (2) and the air outlet pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120328120.XU CN214405649U (en) | 2021-02-04 | 2021-02-04 | Natural gas line prevents equipment of leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120328120.XU CN214405649U (en) | 2021-02-04 | 2021-02-04 | Natural gas line prevents equipment of leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214405649U true CN214405649U (en) | 2021-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120328120.XU Active CN214405649U (en) | 2021-02-04 | 2021-02-04 | Natural gas line prevents equipment of leakage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116518313A (en) * | 2023-05-08 | 2023-08-01 | 中煤科工集团沈阳研究院有限公司 | Pipeline gas leakage real-time detection leakage-proof device and use method |
-
2021
- 2021-02-04 CN CN202120328120.XU patent/CN214405649U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116518313A (en) * | 2023-05-08 | 2023-08-01 | 中煤科工集团沈阳研究院有限公司 | Pipeline gas leakage real-time detection leakage-proof device and use method |
| CN116518313B (en) * | 2023-05-08 | 2024-02-27 | 中煤科工集团沈阳研究院有限公司 | Pipeline gas leakage real-time detection leakage-proof device and use method |
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