CN215721510U - Detection device for natural gas pipeline leakage alarm device - Google Patents
Detection device for natural gas pipeline leakage alarm device Download PDFInfo
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- CN215721510U CN215721510U CN202121900884.8U CN202121900884U CN215721510U CN 215721510 U CN215721510 U CN 215721510U CN 202121900884 U CN202121900884 U CN 202121900884U CN 215721510 U CN215721510 U CN 215721510U
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Abstract
The utility model discloses a detection device of a natural gas pipeline leakage alarm device, which belongs to the field of natural gas detection devices and comprises two natural gas pipelines, wherein the two natural gas pipelines are fixedly connected through a flange; the natural gas pipeline sealing device is novel in design, ingenious in structure and convenient to install, can cover the pipeline joint, improves the sealing performance, can alarm and remind operators in time when leakage occurs, can cut off the pipeline quickly, avoids continuous leakage of natural gas, greatly improves the safety, and is worthy of popularization.
Description
Technical Field
The utility model relates to the technical field of natural gas detection devices, in particular to a detection device of a natural gas pipeline leakage alarm device.
Background
Liquefied Natural Gas (LNG), which is a clean and efficient energy source, has been widely used in industry and civilian use in recent years, and has become one of the most rapidly growing energy sources, LNG has dangerous characteristics such as ultralow temperature, flammability and explosiveness, and once leakage occurs, low-temperature LNG vapor is rapidly diffused, and if a fire source is encountered, disastrous consequences such as fire and explosion may be caused.
At present, LNG transportation mainly has pipeline, tank car and three kinds of modes of boats and ships, and in the pipeline transportation process, natural gas line's junction is open generally, and natural gas leakage can directly waft in the external environment, is difficult for discovering to lead to the emergence of incident, current detection device function singleness, it is generally that the diffusion just can be detected to leak in the weather, can not in time cut off the natural gas, it is late to probably be when discovering.
SUMMERY OF THE UTILITY MODEL
The utility model provides a detection device of a natural gas pipeline leakage alarm device, which aims to solve the problems that the existing detection device provided in the background technology has single function, generally the leakage diffusion can be detected only in the weather, the natural gas cannot be cut off in time, and the time is possibly too late when the detection is found.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the detection device of the natural gas pipeline leakage alarm device comprises two natural gas pipelines which are fixedly connected through a flange, a first sealing cover and a second sealing cover are respectively sleeved on the two natural gas pipelines in a sliding mode, sealing plates are arranged on the inner walls of the first sealing cover and the second sealing cover, a first connecting ring is arranged outside the first sealing cover, a second connecting ring is arranged outside the second sealing cover, a connecting groove is formed in one side, close to the first connecting ring, of the second connecting ring, the first connecting ring and the second connecting ring are fixedly connected through bolts, a gas outlet hole is formed in one side of the top of the first sealing cover and is located inside the first connecting ring, a valve is mounted on the natural gas pipeline sleeved with the second sealing cover, a gear is mounted at the top of a valve rod on the valve, a motor is mounted on one side of the top of the second sealing cover, a rotating block is connected to an output shaft of the motor, and a rack is arranged on one side of the rotating block, and the rack is meshed with the gear, a through hole penetrates through one side of the second connecting ring, a movable rod is movably arranged in the through hole, a sealing ball is fixed at one end of the movable rod, a push plate is fixed at the other end of the movable rod, a spring is sleeved on the movable rod, a shell is fixed at the top of the first sealing cover, a connecting pipe is connected between the shell and the first connecting ring, a warning lamp and a buzzer are installed on the top wall of the shell, and a signal emitter, a gas detector and a controller are installed inside the shell.
In a preferred embodiment, the sealing plate is made of annular rubber, and the inner diameter of the sealing plate is smaller than the outer diameter of the natural gas pipeline.
In a preferred embodiment, the first connecting ring and the second connecting ring are both circular ring structures, the first connecting ring is matched with the connecting groove in size, and the connecting groove is provided with a sealing gasket.
In a preferred embodiment, the rotating block is composed of two parts, one part is in a semicircular structure, the other part is in a semi-elliptical structure, and the rack is located on the side wall of the semicircular structure.
In a preferred embodiment, the turning block is located between the gear and the push plate, and one side of the turning block contacts the push plate.
In a preferred embodiment, the movable rod is of an L-shaped structure, the sealing ball is made of rubber, and the diameter of the sealing ball is larger than that of the air outlet.
In a preferred embodiment, the signal emitter and the gas detector are electrically connected to a controller, and the controller is electrically connected to the warning light, the buzzer and the motor, respectively.
The utility model has the beneficial effects that:
according to the detection device of the natural gas pipeline leakage alarm device, the first sealing cover, the second sealing cover, the sealing plate, the first connecting ring, the second connecting ring and the like are arranged, so that the connection part of the natural gas pipeline can be conveniently covered, when leakage occurs, natural gas cannot leak to the outside, an alarm can be given out in time, workers are reminded, and the safety is high;
this natural gas line leaks alarm device's detection device can in time cut off natural gas line after the natural gas leaks through setting up structures such as valve, gear, motor, movable rod, ball sealer and turning block, avoids the natural gas to continue to leak, further improves the security, is worth promoting.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the housing of the present invention;
FIG. 3 is a top view of a turning block of the present invention;
figure 4 is a top view of the coupling ring one and the coupling ring two of the present invention.
Reference numbers in the figures: 1. a natural gas pipeline; 2. a flange; 3. a first sealing cover; 4. a second sealing cover; 5. a sealing plate; 6. a connecting ring I; 7. a connecting ring II; 8. connecting grooves; 9. a bolt; 10. an air outlet; 11. a valve; 12. a gear; 13. a motor; 14. rotating the block; 15. a rack; 16. a movable rod; 17. a sealing ball; 18. pushing the plate; 19. a spring; 20. a housing; 21. a connecting pipe; 22. a buzzer; 23. a signal transmitter; 24. a gas detector; 25. a controller; 26. a warning light.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, a detection device of a natural gas pipeline leakage alarm device comprises two natural gas pipelines 1, the two natural gas pipelines 1 are fixedly connected through a flange 2, a first sealing cover 3 and a second sealing cover 4 are respectively sleeved on the two natural gas pipelines 1 in a sliding mode, after the two natural gas pipelines 1 are connected, the first sealing cover 3 and the second sealing cover 4 are made to be close to each other through the first sealing cover 3 and the second sealing cover 4 in a sliding mode, a joint is covered, sealing plates 5 are arranged on the inner walls of the first sealing cover 3 and the second sealing cover 4, the sealing plates 5 are made of annular rubber materials, the inner diameters of the sealing plates 5 are smaller than the outer diameters of the natural gas pipelines 1, the two sealing plates 5 can respectively make close contact with the two natural gas pipelines 1, natural gas leakage from the first sealing cover 3 and the second sealing cover 4 is avoided, and sealing performance is improved.
Specifically, referring to fig. 1, a first connecting ring 6 is arranged outside a first sealing cover 3, a second connecting ring 7 is arranged outside a second sealing cover 4, a connecting groove 8 is formed in one side, close to the first connecting ring 6, of the second connecting ring 7, the first connecting ring 6 and the second connecting ring 7 are fixedly connected through a bolt 9, the first connecting ring 6 and the second connecting ring 7 are both in circular ring structures, the first connecting ring 6 is matched with the connecting groove 8 in size, a sealing gasket is arranged on the connecting groove 8, and the sealing performance of the connection between the first connecting ring 6 and the second connecting ring 8 is improved through the sealing gasket; during connection, the first connecting ring 6 is inserted into the connecting groove 8, and then the first connecting ring 6 and the second connecting ring 7 are fixed through the bolts 9, so that the first sealing cover 3 and the second sealing cover 4 can be fixed, the installation is convenient, and the sealing performance is further improved.
Specifically, referring to fig. 1 and 3, an air outlet 10 is formed in one side of the top of a first seal cover 3, the air outlet 10 is located inside a first connection ring 6, when natural gas leaks, the natural gas can enter between the first connection ring 6 and a second connection ring 7, a valve 11 is mounted on a natural gas pipeline 1 sleeved with a second seal cover 4, a gear 12 is mounted at the top of a valve rod on the valve 11, a motor 13 is mounted on one side of the top of the second seal cover 4, an output shaft of the motor 13 is connected with a rotating block 14, a rack 15 is arranged on one side of the rotating block 14, the rack 15 is meshed with the gear 12, the rotating block 14 is composed of two parts, one part is of a semicircular structure, the other part is of a semielliptical structure, and the rack 15 is located on a side wall of the semicircular structure; the motor 13 is started, the output shaft of the motor 13 rotates, the output shaft drives the rotating block 14 to rotate, when the rotating block 14 rotates, the gear 12 can be driven to rotate, the valve 11 is closed, the movable rod 16 is pushed to move, the air outlet 10 is blocked by the sealing ball 17, gas can be prevented from continuously leaking, and the safety is high.
Specifically, referring to fig. 1, a through hole penetrates through one side of the connecting ring ii 7, a movable rod 16 is movably disposed in the through hole, a sealing ball 17 is fixed at one end of the movable rod 16, the movable rod 16 is of an L-shaped structure, the sealing ball 17 is made of rubber, the diameter of the sealing ball 17 is larger than that of the air outlet 10, the diameter of the sealing ball 17 is large, the air outlet 10 can be completely blocked, thereby avoiding the natural gas from flowing outwards continuously, the other end of the movable rod 16 is fixed with a push plate 18, and the movable rod 16 is sleeved with a spring 19, the rotating block 14 is positioned between the gear 12 and the push plate 18, one side of the rotating block 14 contacts the push plate 18, when the rotating block 14 rotates, the rotating block 14 pushes the push plate 18 to move, and the push plate 18 can drive the sealing ball 17 on the movable rod 16 to move to the air outlet 10 to block the air outlet 10, so that the condition of air leakage can be reduced.
Specifically, referring to fig. 2, a shell 20 is fixed on the top of the first sealing cover 3, a connecting pipe 21 is connected between the shell 20 and the first connecting ring 6, a warning lamp 26 and a buzzer 22 are installed on the top wall of the shell 20, a signal emitter 23, a gas detector 24 and a controller 25 are installed inside the shell 20, the signal emitter 23, the gas detector 24 and the controller 25 are electrically connected, and the controller 25 is electrically connected with the warning lamp 26, the buzzer 22 and the motor 13 respectively; after gas gets into in the casing 20, gas detector 24 can detect the natural gas leakage, and give controller 25 with signal transmission, controller 25 gives signal transmitter 23 with signal transmission, give operating personnel through signal transmitter 23 transmission, make operating personnel in time receive information, controller 25 controls warning light 26 scintillation simultaneously, bee calling organ 22 sends the police dispatch newspaper, make operating personnel can discover the place of leaking fast, start motor 13 simultaneously, cut off natural gas pipeline 1, avoid the natural gas to continue to leak.
The working principle is as follows: two natural gas pipelines 1 are connected through a flange 2, after the two natural gas pipelines 1 are connected, a first sealing cover 3 and a second sealing cover 4 are slid to enable the first sealing cover 3 and the second sealing cover 4 to be close to each other, a connection part is covered, a first connecting ring 6 is inserted into a connecting groove 8, then the first connecting ring 6 and a second connecting ring 7 are fixed through a bolt 9, the first sealing cover 3 and the second sealing cover 4 can be fixed, the installation is convenient, the sealing performance is further improved, when natural gas leakage occurs, the natural gas enters a shell 20 through a gas outlet 10 and a connecting pipe 21, a gas detector 24 can detect the natural gas leakage and transmits signals to a controller 25, the controller 25 transmits the signals to a signal transmitter 23 and transmits the signals to an operator through the signal transmitter 23, the operator receives information in time, the controller 25 controls a warning lamp 26 to flash at the same time, and a buzzer 22 gives an alarm, make operating personnel can discover the place of leaking fast, start motor 13 simultaneously, motor 13's output shaft rotates, and the output shaft drives turning block 14 and rotates, and when turning block 14 rotated, rack 15 and gear 12 meshing not only can drive gear 12 and rotate, closed valve 11, promoted the movable rod 16 moreover and remove, utilize ball sealer 17 to block venthole 10, can avoid gaseous continuation leakage, and the security is high.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (7)
1. The detection device of the natural gas pipeline leakage alarm device comprises two natural gas pipelines (1) and is characterized in that the two natural gas pipelines (1) are fixedly connected through a flange (2), a first sealing cover (3) and a second sealing cover (4) are respectively sleeved on the two natural gas pipelines (1) in a sliding mode, sealing plates (5) are arranged on the inner walls of the first sealing cover (3) and the second sealing cover (4), a first connecting ring (6) is arranged outside the first sealing cover (3), a second connecting ring (7) is arranged outside the second sealing cover (4), a connecting groove (8) is formed in one side, close to the first connecting ring (6), of the second connecting ring (7), the first connecting ring (6) and the second connecting ring (7) are fixedly connected through bolts (9), a gas outlet hole (10) is formed in one side of the top of the first sealing cover (3), and the gas outlet hole (10) is located inside the first connecting ring (6), a valve (11) is arranged on a natural gas pipeline (1) which is sleeved with a second sealing cover (4), a gear (12) is arranged at the top of a valve rod on the valve (11), a motor (13) is arranged at one side of the top of the second sealing cover (4), an output shaft of the motor (13) is connected with a rotating block (14), a rack (15) is arranged at one side of the rotating block (14), the rack (15) is meshed with the gear (12), a through hole penetrates through one side of a second connecting ring (7), a movable rod (16) is movably arranged in the through hole, a sealing ball (17) is fixed at one end of the movable rod (16), a push plate (18) is fixed at the other end of the movable rod (16), a spring (19) is sleeved on the movable rod (16), a shell (20) is fixed at the top of a first sealing cover (3), a connecting pipe (21) is connected between the shell (20) and the first connecting ring (6), a warning lamp (26) and a buzzer (22) are arranged on the top wall of the shell (20), a signal emitter (23), a gas detector (24) and a controller (25) are mounted inside the housing (20).
2. The detection device of the natural gas pipeline leakage alarm device according to claim 1, wherein the sealing plate (5) is made of annular rubber, and the inner diameter of the sealing plate (5) is smaller than the outer diameter of the natural gas pipeline (1).
3. The detection device of the natural gas pipeline leakage alarm device according to claim 1, wherein the connection ring I (6) and the connection ring II (7) are both circular ring structures, the connection ring I (6) is matched with the connection groove (8) in size, and the connection groove (8) is provided with a sealing gasket.
4. The detection device of the natural gas pipeline leakage alarm device according to claim 1, wherein the rotating block (14) is composed of two parts, one part is of a semicircular structure, the other part is of a semi-elliptical structure, and the rack (15) is positioned on the side wall of the semicircular structure.
5. The detection apparatus of the natural gas pipeline leakage alarm apparatus according to claim 4, wherein the rotation block (14) is located between the gear (12) and the push plate (18), and one side of the rotation block (14) contacts the push plate (18).
6. The detection device of the natural gas pipeline leakage alarm device according to claim 1, wherein the movable rod (16) is of an L-shaped structure, the sealing ball (17) is made of rubber, and the diameter of the sealing ball (17) is larger than that of the air outlet hole (10).
7. The detection device of the natural gas pipeline leakage alarm device according to claim 1, wherein the signal emitter (23) and the gas detector (24) are electrically connected with a controller (25), and the controller (25) is electrically connected with the warning lamp (26), the buzzer (22) and the motor (13) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121900884.8U CN215721510U (en) | 2021-08-14 | 2021-08-14 | Detection device for natural gas pipeline leakage alarm device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121900884.8U CN215721510U (en) | 2021-08-14 | 2021-08-14 | Detection device for natural gas pipeline leakage alarm device |
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| CN215721510U true CN215721510U (en) | 2022-02-01 |
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| CN202121900884.8U Active CN215721510U (en) | 2021-08-14 | 2021-08-14 | Detection device for natural gas pipeline leakage alarm device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013738A (en) * | 2022-06-09 | 2022-09-06 | 西安航天神舟建筑设计院有限公司 | Natural gas line leakage detection device |
| CN115681642A (en) * | 2022-10-28 | 2023-02-03 | 江阴金童石化装备有限公司 | Lens pad sealed ultrahigh pressure pipeline |
| CN116242545A (en) * | 2023-05-10 | 2023-06-09 | 山东宏旭化学股份有限公司 | Safety detection device of hydrocyanic acid oxidation reactor and application method thereof |
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2021
- 2021-08-14 CN CN202121900884.8U patent/CN215721510U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013738A (en) * | 2022-06-09 | 2022-09-06 | 西安航天神舟建筑设计院有限公司 | Natural gas line leakage detection device |
| CN115013738B (en) * | 2022-06-09 | 2023-06-27 | 西安航天神舟建筑设计院有限公司 | Natural gas pipeline leakage detection device |
| CN115681642A (en) * | 2022-10-28 | 2023-02-03 | 江阴金童石化装备有限公司 | Lens pad sealed ultrahigh pressure pipeline |
| CN115681642B (en) * | 2022-10-28 | 2023-08-18 | 江阴金童石化装备有限公司 | Lens pad sealing ultrahigh pressure pipeline |
| CN116242545A (en) * | 2023-05-10 | 2023-06-09 | 山东宏旭化学股份有限公司 | Safety detection device of hydrocyanic acid oxidation reactor and application method thereof |
| CN116242545B (en) * | 2023-05-10 | 2023-07-14 | 山东宏旭化学股份有限公司 | Safety detection device of hydrocyanic acid oxidation reactor and application method thereof |
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