CN212986794U - Gas leakage detection device for natural gas pipeline - Google Patents
Gas leakage detection device for natural gas pipeline Download PDFInfo
- Publication number
- CN212986794U CN212986794U CN202022054155.7U CN202022054155U CN212986794U CN 212986794 U CN212986794 U CN 212986794U CN 202022054155 U CN202022054155 U CN 202022054155U CN 212986794 U CN212986794 U CN 212986794U
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- Prior art keywords
- connecting piece
- fixedly connected
- natural gas
- sealing strip
- gas leakage
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000007789 gas Substances 0.000 title claims abstract description 30
- 239000003345 natural gas Substances 0.000 title claims abstract description 28
- 238000001514 detection method Methods 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 64
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 abstract description 8
- 238000012031 short term test Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The utility model discloses a gas leakage detection device for natural gas line relates to the gas leakage detection field, including first connecting piece and second connecting piece, first connecting piece and second connecting piece all are provided with two, through locking bolt fixed connection between the both ends of first connecting piece and second connecting piece, the equal fixedly connected with rubber seal piece in one side of first connecting piece and second connecting piece is provided with the elasticity sealing strip between the rubber seal piece on two first connecting pieces and two second connecting pieces. The utility model discloses a be provided with two first connecting pieces and second connecting piece, the sealed piece cooperation elastic sealing area of rubber on first connecting piece and the second connecting piece has reached quick sealed effect, can leak gas through the detection liquid in the seal box simultaneously by short-term test pipeline junction, has improved the detection efficiency of this device.
Description
Technical Field
The utility model relates to a leak testing field, in particular to gas leakage testing device for natural gas line.
Background
The natural gas pipeline refers to a pipeline for conveying natural gas (including associated gas produced in oil fields) from a mining place or a processing plant to an urban gas distribution center or an industrial enterprise user, and is also called a gas conveying pipeline. In the total length of the pipeline, the natural gas pipeline occupies about half, the natural gas is inflammable, explosive and easy to diffuse, the leakage and rupture accidents of the natural gas pipeline not only cause great direct economic loss, but also cause serious consequences such as personal injury, environmental pollution and the like more easily, most of the existing natural gas pipeline gas leakage detection devices can detect the pipeline, but the butt joint of the natural gas pipeline has no corresponding detection, most of the natural gas pipeline butt joints are butt joints by using a welding process, the welding spot is not perfect during welding, or the gas leakage phenomenon is easy to occur after long-time use. Therefore, it is necessary to provide a gas leakage detecting device for a natural gas pipeline to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gas leakage detection device for natural gas line to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a gas leakage detection device for a natural gas pipeline comprises a first connecting piece and a second connecting piece, wherein the number of the first connecting piece and the number of the second connecting piece are two, the two ends of the first connecting piece and the second connecting piece are fixedly connected through locking bolts, one side of the first connecting piece and one side of the second connecting piece are both fixedly connected with an arc plate, the inner side of the arc plate is fixedly connected with a rubber sealing block, elastic sealing strips are arranged between the rubber sealing blocks on the two first connecting pieces and the two second connecting pieces, the middle part of one elastic sealing strip is communicated with an electromagnetic valve through a vent pipe, the output end of the electromagnetic valve is communicated with an external gas storage device, the bottoms of the first connecting piece and the second connecting piece at the lower end are both fixedly connected with a connecting rod, the bottom end of the connecting rod is fixedly connected with a sealing box, and the middle part, the bottom end of the communicating pipe is fixedly connected with one side of the lower end of the seal box, and the lower end of the inner cavity of the seal box is filled with detection liquid.
Preferably, a movable plate is arranged at the upper end of the inner cavity of the seal box, and the edge of the movable plate is connected with the inner wall of the upper end of the seal box through a seal belt.
Preferably, the middle part of the upper surface of the movable plate is fixedly connected with a guide rod, the middle part of the top end of the seal box is provided with a guide groove, and the upper end of the guide rod is in through connection with the guide groove.
Preferably, the inner top wall one side fixedly connected with alarm switch of seal box, the inner top wall opposite side fixedly connected with solenoid valve control switch of seal box, solenoid valve control switch is connected with the solenoid valve electricity, alarm switch and solenoid valve control switch all correspond with the upper surface of fly leaf.
Preferably, the two ends of the elastic sealing strip are fixedly connected with sealing strips, the two ends of the sealing strips are fixedly connected with the rubber sealing block, and the two sealing strips on the elastic sealing strip are attached to one side close to each other.
Preferably, one of the sealing strips is fixedly connected with a limiting column in the middle of the lower surface, the other sealing strip is provided with a limiting groove in the middle, the limiting column is in through connection with the limiting groove, and a limiting nut is sleeved on the outer side of the bottom end of the limiting column.
The utility model discloses a technological effect and advantage:
1. the utility model discloses a be provided with two first connecting pieces and second connecting piece, the sealed piece cooperation elastic sealing area of rubber on first connecting piece and the second connecting piece has reached quick sealed effect, can leak gas through the detection liquid in the seal box simultaneously by short-term test pipeline junction, has improved the detection efficiency of this device.
2. The utility model discloses a be provided with the fly leaf in the seal box, the fly leaf can be when leaking gas the rebound under atmospheric pressure, with alarm switch and the solenoid valve control switch contact in the seal box, alarm on-off control alarm starts, reminds the staff to have the condition of leaking, and in the natural gas transmission to the gas storage device of solenoid valve control on-off control solenoid valve with leaking, avoided the waste of resource, also played the effect of pressure release simultaneously.
Drawings
Fig. 1 is a schematic side view of the structure of the first connecting piece and the second connecting piece of the present invention.
Fig. 2 is a schematic sectional view of the overall structure of the present invention.
Fig. 3 is a schematic side sectional view of the elastic sealing tape structure of the present invention.
In the figure: 1. a first connecting member; 2. a second connecting member; 3. locking the bolt; 4. an arc-shaped plate; 5. a rubber sealing block; 6. an elastic sealing tape; 7. an electromagnetic valve; 8. a connecting rod; 9. a sealing box; 10. a communicating pipe; 11. detecting the liquid; 12. a movable plate; 13. sealing tape; 14. a guide bar; 15. a guide groove; 16. an alarm switch; 17. the electromagnetic valve controls the switch; 18. a sealing strip; 19. a limiting column; 20. a limiting groove; 21. and a limiting nut.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a as shown in fig. 1-3 gas leakage detection device for natural gas line, as shown in fig. 1, including first connecting piece 1 and second connecting piece 2, first connecting piece 1 and second connecting piece 2 all are provided with two, through locking bolt 3 fixed connection between the both ends of first connecting piece 1 and second connecting piece 2, the equal fixedly connected with arc 4 in one side of first connecting piece 1 and second connecting piece 2, the inboard fixedly connected with rubber seal block 5 of arc 4, rubber seal block 5 has played sealed effect.
As shown in fig. 2, elastic sealing strips 6 are arranged between the rubber sealing blocks 5 on the two first connecting pieces 1 and the two second connecting pieces 2, the middle part of one of the elastic sealing strips 6 is communicated with an electromagnetic valve 7 through a vent pipe, the output end of the electromagnetic valve 7 is communicated with an external gas storage device, the electromagnetic valve 7 can convey natural gas into the gas storage device, waste of resources is avoided, the bottom parts of the first connecting piece 1 and the second connecting piece 2 which are positioned at the lower end are fixedly connected with connecting rods 8, the bottom end of the connecting rod 8 is fixedly connected with a sealing box 9, the middle part of the other elastic sealing strip 6 is fixedly connected with a communicating pipe 10, the bottom end of the communicating pipe 10 is fixedly connected with one side of the lower end of the sealing box 9, the lower end of the inner cavity of the sealing.
A movable plate 12 is arranged at the upper end of an inner cavity of the seal box 9, the edge of the movable plate 12 is connected with the inner wall of the upper end of the seal box 9 through a seal belt 13, a guide rod 14 is fixedly connected with the middle part of the upper surface of the movable plate 12, a guide groove 15 is formed in the middle part of the top end of the seal box 9, the upper end of the guide rod 14 is connected with the guide groove 15 in a penetrating way, the guide rod 14 and the guide groove 15 are matched to play a role in guiding the movable plate 12, so that the movable plate 12 keeps moving vertically and vertically, an alarm switch 16 is fixedly connected with one side of the inner top wall of the seal box 9, a solenoid valve control switch 17 is fixedly connected with the other side of the inner top wall of the seal box 9, the solenoid valve control switch 17 is electrically connected with the solenoid valve 7, the alarm switch 16 and the, reminding the staff, the solenoid valve control switch 17 controls the solenoid valve 7 to start, and the natural gas that will leak is transmitted to the gas storage device, has avoided the waste of resource.
As shown in fig. 3, the equal fixedly connected with sealing strip 18 in both ends of elastic sealing strip 6, the both ends of sealing strip 18 all with 5 fixed connection of rubber seal, the sealing strip 18 on two elastic sealing strips 6 is close to one side laminating each other is connected, two elastic sealing strips 6 cooperate sealing strip 18 above that to play fine sealing effect, the spacing post 19 of lower surface middle part fixedly connected with of one of them sealing strip 18, spacing groove 20 has been seted up at the middle part of another sealing strip 18, spacing post 19 and spacing groove 20 through connection, stop nut 21 has been cup jointed in the bottom outside of spacing post 19, stop nut 21 and the cooperation of stop post 19 can be spacing and closely laminating two sealing strips 18, fine sealed effect has been reached.
The utility model discloses the theory of operation:
when the device is installed, firstly, two first connecting pieces 1 and two second connecting pieces 2 are respectively sleeved on the upper side and the lower side of a pipeline, then the first connecting pieces 1 and the second connecting pieces 2 are fixedly connected through locking bolts 3, at the moment, rubber sealing blocks 5 on the first connecting pieces 1 and the second connecting pieces 2 are tightly attached to the pipeline, two adjacent rubber sealing blocks 5 are tightly attached to each other in an opposite direction, the sealing effect is achieved, at the moment, two adjacent sealing strips 18 are attached and connected, a limiting column 19 on one sealing strip 18 is inserted into a limiting groove 20 on the other sealing strip 18, then a limiting nut 21 is sleeved on the limiting column 19 to limit the two sealing strips 18, then whether air leakage exists at the connection part of the pipeline is detected, under the condition of air leakage, natural gas enters a sealing box 9 through a communicating pipe 10, bubbles can be generated at a detection liquid 11 in the sealing box 9, and air pressure generated by the natural gas drives a movable plate 12 to, until the movable plate 12 contacts the alarm switch 16 and the electromagnetic valve control switch 17, the alarm switch 16 controls the alarm to start to remind a worker, the electromagnetic valve control switch 17 controls the electromagnetic valve 7 to start, and leaked natural gas is transmitted to the gas storage device, so that waste of resources is avoided.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. The utility model provides a gas leakage detection device for natural gas line, includes first connecting piece (1) and second connecting piece (2), its characterized in that: the two connecting pieces are respectively arranged at the two ends of the first connecting piece (1) and the second connecting piece (2), the two ends of the first connecting piece (1) and the second connecting piece (2) are fixedly connected through a locking bolt (3), an arc-shaped plate (4) is fixedly connected at one side of each of the first connecting piece (1) and the second connecting piece (2), a rubber sealing block (5) is fixedly connected at the inner side of each arc-shaped plate (4), an elastic sealing strip (6) is arranged between the rubber sealing blocks (5) on the two first connecting pieces (1) and the two second connecting pieces (2), the middle part of each elastic sealing strip (6) is communicated with an electromagnetic valve (7) through a vent pipe, the output end of each electromagnetic valve (7) is communicated with an external gas storage device, and a connecting rod (8) is fixedly connected at the bottom of each of the first connecting piece (1) and the second connecting piece (2, the bottom end of the connecting rod (8) is fixedly connected with a seal box (9), the other middle part of the elastic sealing strip (6) is fixedly connected with a communicating pipe (10), the bottom end of the communicating pipe (10) is fixedly connected with one side of the lower end of the seal box (9), and the lower end of the inner cavity of the seal box (9) is filled with detection liquid (11).
2. The gas leakage detecting device for a natural gas pipeline according to claim 1, characterized in that: the upper end of the inner cavity of the seal box (9) is provided with a movable plate (12), and the edge of the movable plate (12) is connected with the inner wall of the upper end of the seal box (9) through a seal belt (13).
3. A gas leakage detecting device for a natural gas pipeline according to claim 2, characterized in that: the upper surface middle part fixedly connected with guide bar (14) of fly leaf (12), guide way (15) have been seted up in the top middle part of seal box (9), the upper end and the guide way (15) through connection of guide bar (14).
4. A gas leakage detecting device for a natural gas pipeline according to claim 3, characterized in that: the alarm device is characterized in that an alarm switch (16) is fixedly connected to one side of the inner top wall of the sealing box (9), an electromagnetic valve control switch (17) is fixedly connected to the other side of the inner top wall of the sealing box (9), the electromagnetic valve control switch (17) is electrically connected with the electromagnetic valve (7), and the alarm switch (16) and the electromagnetic valve control switch (17) are corresponding to the upper surface of the movable plate (12).
5. The gas leakage detection device for a natural gas pipeline according to claim 4, characterized in that: the two ends of the elastic sealing strip (6) are fixedly connected with sealing strips (18), the two ends of the sealing strips (18) are fixedly connected with the rubber sealing block (5), and the two sealing strips (18) on the elastic sealing strip (6) are attached to one side close to each other.
6. The gas leakage detection device for a natural gas pipeline according to claim 5, characterized in that: one of them the lower surface middle part fixedly connected with spacing post (19) of sealing strip (18), another spacing groove (20) have been seted up at the middle part of sealing strip (18), spacing post (19) and spacing groove (20) through connection, stop nut (21) have been cup jointed in the bottom outside of spacing post (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022054155.7U CN212986794U (en) | 2020-09-18 | 2020-09-18 | Gas leakage detection device for natural gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022054155.7U CN212986794U (en) | 2020-09-18 | 2020-09-18 | Gas leakage detection device for natural gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212986794U true CN212986794U (en) | 2021-04-16 |
Family
ID=75417861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022054155.7U Expired - Fee Related CN212986794U (en) | 2020-09-18 | 2020-09-18 | Gas leakage detection device for natural gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212986794U (en) |
-
2020
- 2020-09-18 CN CN202022054155.7U patent/CN212986794U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210416 |