CN216344661U - Gas pipeline flange joint leakage detection device - Google Patents
Gas pipeline flange joint leakage detection device Download PDFInfo
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- CN216344661U CN216344661U CN202121054152.1U CN202121054152U CN216344661U CN 216344661 U CN216344661 U CN 216344661U CN 202121054152 U CN202121054152 U CN 202121054152U CN 216344661 U CN216344661 U CN 216344661U
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- 238000001514 detection method Methods 0.000 title claims abstract description 58
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 238000001035 drying Methods 0.000 claims abstract description 30
- 238000005507 spraying Methods 0.000 claims abstract description 20
- 238000005086 pumping Methods 0.000 claims abstract description 16
- 239000007921 spray Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 47
- 238000005253 cladding Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract description 7
- 230000000246 remedial effect Effects 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 44
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000004819 Drying adhesive Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000002354 daily effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model relates to a gas pipeline flange connection gas leakage detection device, which comprises a detection module and a leakage blocking module; the detection module comprises a sensor for detecting whether the flange interface leaks air; the leakage stopping module comprises quick-drying solution which is arranged in a liquid storage box and used for stopping leakage, a liquid pumping device used for pumping the quick-drying solution, and a spraying piece used for spraying the quick-drying solution to the flange interface; and when the air leakage of the flange interface is detected, the controller starts the leakage stopping module to spray the quick-drying solution to the flange interface. This detection device can make after detecting the flange kneck emergence gas leakage of gas pipeline and spray the interim remedial measure of rapid-curing cutback solution is in order to prevent that the gas leakage condition from further worsening, reduces the risk of conflagration and explosion taking place, provides safe operational environment for the maintainer.
Description
Technical Field
The utility model relates to the technical field of gas pipeline maintenance, in particular to a gas pipeline flange connection leakage detection device.
Background
At present, flange joint is the connected mode that gas pipeline engineering was used often, and flange joint often can cause the leakage of gas because of the ageing of sealing member, bolt-up is not tight, major and objective factors such as expend with heat and contract with cold cause in the in-service use process, and combustible gas in the air will have the risk of taking place conflagration and explosion after reaching certain concentration, consequently need do daily detection to flange joint in the gas pipeline operation process. At present, the most conventional detection means is manual detection, taking natural gas pipeline detection of a certain gas turbine power plant as an example, a maintainer needs to carry a combustible gas detector 3110 for many times every day, and a probe of the detector is extended into the periphery of a sealing piece at each flange connection part for detection, so that the efficiency is low, real-time detection cannot be realized, and the risk of fire and explosion cannot be really and effectively reduced.
In order to solve the problems, related technicians research and develop related gas pipeline gas leakage detection devices, for example, the utility model patent with the publication number of CN211146111U discloses a gas leakage detection device for a natural gas conveying pipeline, which comprises a first conveying pipeline, a second conveying pipeline and a connecting pipeline, wherein two ends of the connecting pipeline are respectively connected with the first conveying pipeline and the second conveying pipeline in a sealing way through flanges, a valve is arranged in the connecting pipeline, a rainproof sealing cover is arranged at the outer side of the connecting pipeline, a sealing semi-ring body is fixed at the inner side of the rainproof sealing cover, and a sealing ring is arranged at the inner side of the sealing semi-ring body; rain-proof sealed cover is equipped with outside outstanding detection room, and the restriction that slides in the detection room has the roof, and coil spring has been placed to the top of roof, and coil spring's inside is equipped with pressure sensor, and pressure sensor is connected with wireless alarm through microprocessor, and wireless alarm carries out wireless communication through built-in wireless transceiver module and backstage terminal. Although this detection device has characteristics with low costs, that are convenient for maintain, this detection device can not make interim remedial measure when detecting gas pipeline or flange and take place to leak gas and prevent that the gas leakage condition from further worsening, can't reduce the risk of taking place conflagration and explosion, can not provide safe solution problem environment for the maintainer.
SUMMERY OF THE UTILITY MODEL
Therefore, the technical problem to be solved by the utility model is to overcome the problem that a temporary remedial measure cannot be made to provide a safe working space for the maintenance personnel after the gas leakage of the gas pipeline flange is detected in the prior art, so that the gas pipeline flange connection gas leakage detection device can be used for making the temporary remedial measure to prevent the gas leakage condition from further worsening after the gas leakage of the gas pipeline flange interface is detected, reducing the risks of fire and explosion and providing a safe working environment for the maintenance personnel.
In order to solve the technical problem, the utility model provides a gas pipeline flange connection gas leakage detection device, which comprises a detection module and a leakage blocking module; the detection module comprises a sensor for detecting whether the flange interface leaks air; the leakage stopping module comprises quick-drying solution which is arranged in a liquid storage box and used for stopping leakage, a liquid pumping device used for pumping the quick-drying solution, and a spraying piece used for spraying the quick-drying solution to the flange interface; and when the air leakage of the flange interface is detected, the controller starts the leakage stopping module to spray the quick-drying solution to the flange interface.
In one embodiment of the present invention, the sealing module further comprises a first sealing member disposed between the first flange and the second flange for sealing the flange interface.
In one embodiment of the utility model, the first seal comprises two bladders; the air bag is inflated and expanded to be in contact with the inner wall of the first flange plate and the inner wall of the second flange plate.
In one embodiment of the utility model, the liquid extraction device comprises a liquid outlet pipe which extends to the outer side of the flange interface through a gap between the two air bags.
In one embodiment of the utility model, the sensor extends through the gap between the two bladders to the outside of the flange interface.
In one embodiment of the utility model, the first sealing element is connected to an annular cladding, which comprises a first and a second sub-body.
In one embodiment of the utility model, the first sealing elements comprise two groups, the inner wall of the first assembly division is connected with one group of the first sealing elements, and the inner wall of the second assembly division is connected with the other group of the first sealing elements; and the first assembling split body or/and the second assembling split body is/are provided with an inflating device, and the inflating device is used for inflating the air bag.
In one embodiment of the utility model, the liquid storage box further comprises a shell, and the shell is used for accommodating and fixing the liquid storage box.
In an embodiment of the utility model, the leaking stoppage module further comprises a connecting piece for connecting the liquid outlet pipe and the spraying piece, the connecting piece is in a circular arc shape, and the spraying pieces are circumferentially arrayed on the connecting piece and aligned to the flange interface.
In an embodiment of the present invention, the detection module further includes a positioning element and a signal emitting device, where the positioning element is used to position the flange interface; the signal emitting device is electrically connected with the sensor and used for outputting an alarm signal when the flange interface is detected to be air-leaked.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
the utility model relates to a gas pipeline flange connection gas leakage detection device, which comprises a detection module and a leakage blocking module; the detection module comprises a sensor which is arranged around the flange interface and used for detecting whether combustible gas leaks; the leakage stopping module comprises quick-drying solution which is arranged in a liquid storage box and used for stopping leakage, a liquid pumping device used for pumping the quick-drying solution, and a spraying piece used for spraying the quick-drying solution to the flange interface; and when the air leakage of the flange interface is detected, the controller starts the leakage stopping module to spray the quick-drying solution to the flange interface. This detection device can make after detecting the flange kneck emergence gas leakage of gas pipeline and spray the interim remedial measure of rapid-curing cutback solution is in order to prevent that the gas leakage condition from further worsening, reduces the risk of conflagration and explosion taking place, provides safe operational environment for the maintainer.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the embodiments of the present disclosure taken in conjunction with the accompanying drawings, in which
FIG. 1 is a cross-sectional view of a gas pipe flange connection leakage detection device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a portion of the seal module shown in FIG. 1;
FIG. 3 is a schematic structural view of a plugging module in the device;
fig. 4 is a schematic view of the working state of the detecting device shown in fig. 1.
The specification reference numbers indicate: 11. a liquid storage box; 12. quick drying the solution; 13. a liquid pumping device; 131. a liquid outlet pipe; 14. a connecting member; 15. a spraying member; 16. a closure cap;
2. a sealing module; 21. a covering member; 211. a first assembled split; 212. a second split assembly; 22. A first seal member; 23. an inflator; 24. a second seal member; 25. a limiting member;
3. a detection module; 31. a sensor; 32. a display; 33. a signal emitting device; 34. a positioning member;
4. a controller; 5. a first flange plate; 6. a flange interface; 7. a housing.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the utility model pertains.
In the description of the present application, it is to be understood that the terms "longitudinal," "lateral," "central," "length," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
In this application, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed and removable connections or integral connections or indirect connections through intervening media, communication between two elements, or a combination thereof. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 4, an embodiment of the present invention provides a gas pipe flange connection gas leakage detection apparatus, including a detection module 3 and a plugging module; the detection module 3 comprises a sensor 31 for detecting whether the flange interface 6 leaks air; the leakage stoppage module comprises quick-drying solution 12 which is arranged in a liquid storage box 11 and used for stopping leakage, a liquid pumping device 13 used for pumping the quick-drying solution 12, and a spraying piece 15 used for spraying the quick-drying solution 12 to the flange connector 6; when the air leakage of the flange interface 6 is detected, the controller 4 starts the leakage stopping module to spray the quick drying solution 12 to the flange interface 6.
The gas pipeline flange connection gas leakage detection device comprises a detection module 3 and a leakage blocking module; the detection module 3 comprises a sensor 31 for detecting whether the flange interface 6 leaks gas or not, the sensor 31 is a combustible gas sensor, the combustible gas sensor is small in size, excellent in responsiveness and high in sensitivity to hydrocarbon combustible gas, and can accurately detect the leakage of the combustible gas; the leakage stoppage module comprises a quick-drying solution 12 which is arranged in a liquid storage box 11 and used for stopping leakage, a liquid pumping device 13 used for pumping the quick-drying solution 12, and a spraying piece 15 used for spraying the quick-drying solution 12 to the flange connector 6. In this embodiment, the quick-drying solution 12 is preferably quick-drying glue, which has the advantages of high bonding speed, high strength and convenient operation, and is suitable for temporary plugging of the flange connector 6; the liquid pumping device 13 is set as a gear pump or a high-viscosity pump capable of extracting the quick-drying adhesive. When the air leakage of the flange interface 6 is detected, the controller 4 starts the leakage stopping module to spray the quick drying solution 12 to the flange interface 6. This detection device can make after detecting gas leakage that gas pipeline's flange interface 6 department takes place to spray the temporary remedial measure of rapid-curing cutback solution 12 is in order to prevent that the gas leakage condition further worsens, reduces the risk of taking place conflagration and explosion, provides safe operational environment for the maintainer.
In addition, the detection device further comprises a sealing module 2, wherein the sealing module 2 is used for sealing a space between the first flange plate 5 and a second flange plate (not shown in the figure), so that the flange interface 6 is sealed, the flange interface 6 is not contacted with the outside, a sealed space is provided, and the detection accuracy is improved; the sealing module 2 comprises a first sealing member 22 arranged between the first flange 5 and the second flange for sealing the flange joint 6.
Further, referring to fig. 1, since the space between the first flange 5 and the second flange is not enough to accommodate the plugging module, the liquid storage box 11 and the quick drying solution 12 are disposed outside the flange, and the liquid outlet pipe 131 of the liquid pumping device 13 extends to between the first flange 5 and the second flange; thus, the first seal 22 comprises two air pockets; the liquid pumping device 13 comprises a liquid outlet pipe 131, and the liquid outlet pipe 131 extends to the outer side of the flange interface 6 through a gap between the two air bags; the air bag is inflated and expanded to be in contact with the inner wall of the first flange plate 5 and the inner wall of the second flange plate to seal the flange interface 6. Furthermore, the sensor 31 extends through the gap between the two airbags, the gap between the first sealing element 22, to the outside of the flange connection 6.
In addition, referring to fig. 1, 2 and 4, in order to realize the sealing between the two airbags, the first sealing element 22 is connected to the annular covering element 21, and in order to better prevent the risk caused by static electricity, the material of the covering element 21 may be antistatic organic glass, antistatic PVC, antistatic nylon, antistatic rubber, or other materials; it is conceivable that, in order to facilitate the installation of the covering member 21 and the first sealing member 22, the covering member 21 includes a first split body 211 and a second split body 212 which are semi-annular, a second sealing member 24 is disposed between the first split body 211 and the second split body 212 to realize the sealing between the two split bodies, and the second sealing member 24 is preferably configured as an antistatic rubber.
Therefore, referring to fig. 1, 2 and 4, the first sealing elements 22 also include two sets, the inner wall of the first sub-body 211 is connected to one set of the first sealing elements 22, and the inner wall of the second sub-body 212 is connected to the other set of the first sealing elements 22; in order to avoid the damage of the air bags caused by mutual friction of the air bags included in the upper and lower groups of first sealing elements 22 in the inflating process, a limiting element 25 is arranged between the two groups of first sealing elements 22; in order to inflate the airbag included in the first sealing element 22, an inflation device 23 is disposed on the first assembly sub-body 211 or/and the second assembly sub-body 212, and the inflation device 23 is used for inflating the airbag.
Further, referring to fig. 1 and 4, a housing 7 is connected to the first assembled split 211, the housing 7 is used for accommodating and fixing the liquid storage box 11, the liquid storage box 11 is connected to the liquid pumping device 13, a through hole is formed in the first assembled split 211 and used for allowing the liquid outlet pipe 131 to pass through, the liquid outlet pipe 131 passes through the through hole and then extends to the outer side of the flange connector 6 through a gap between the two air bags on the first sealing element 22 connected to the first assembled split 211, and a sealing cover 16 for sealing the liquid storage box 11 is further arranged on the housing 7 to prevent the quick drying solution 12 from solidifying after contacting air.
Further, referring to fig. 1 and 3, in order to realize the complete coverage of the flange interface 6 with the quick-drying solution 12 after air leakage is detected, the plugging module further includes a connecting member 14 for connecting the liquid outlet pipe 131 and the spraying member 15, the connecting member 14 is arc-shaped, a channel for communicating the liquid outlet pipe 131 with the spraying member 15 is arranged in the connecting member 14, and the spraying members 15 are circumferentially arrayed on the connecting member 14 and aligned with the flange interface 6.
In addition, referring to fig. 1 and 4, since the liquid outlet pipe 131 passes through the first assembly part 211 and is connected to the arc-shaped connecting member 14, in order to prevent the sensor 31 included in the detection module 3 from interfering with the connecting member 14, the sensor 31 is fixed to the second assembly part 212 and points to the flange interface 6 through a gap between the two airbags included in the first sealing member 22 on the second assembly part 212, and in order to improve the detection accuracy, the sensor 31 may be provided in a plurality of parallel circumferential arrays on the second assembly part 212; the detection module 3 further comprises a positioning piece 34 and a signal transmitting device 33, wherein the positioning piece 34 is set as a GPS positioner, and the GPS positioner is used for positioning the position of the flange interface 6 so as to facilitate a maintainer to determine the connection position of the gas leakage flange in time; the signal emitting device 33 is electrically connected with the sensor and is used for outputting an alarm signal to warn a maintainer when the flange interface 6 is detected to be air-leaked; the detection module 3 further comprises a display 32 for displaying the concentration of the leaked fuel gas so that the leakage degree can be judged by a maintainer.
It is conceivable that the detection device is compatible with flange connections of different sizes, for example, a leakage detection device for DN 350-caliber flange connection is manufactured, and the detection device can be used for flanges with nominal diameters smaller than 350mm on the premise that the first sealing member can seal the flange interface 6.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the utility model may be made without departing from the spirit or scope of the utility model.
Claims (10)
1. The utility model provides a gas pipeline flange joint gas leakage detection device which characterized in that: comprises a detection module (3) and a leakage stoppage module; the detection module (3) comprises a sensor (31) for detecting whether the flange interface (6) leaks air; the leakage stoppage module comprises quick-drying solution (12) which is arranged in a liquid storage box (11) and used for stopping leakage, a liquid extraction device (13) which is used for extracting the quick-drying solution (12), and a spraying piece (15) which is used for spraying the quick-drying solution (12) to the flange interface (6); when the flange interface (6) is detected to leak, the controller (4) starts the leakage stopping module to spray the quick drying solution (12) to the flange interface (6).
2. The gas pipe flange joint leakage detection device of claim 1, wherein: the sealing module (2) comprises a first sealing element (22) arranged between the first flange plate (5) and the second flange plate and used for sealing the flange interface (6).
3. The gas pipe flange joint leakage detection device of claim 2, wherein: the first seal (22) comprises two air pockets; the air bag is inflated and expanded to be in contact with the inner wall of the first flange (5) and the inner wall of the second flange.
4. The gas pipe flange joint leakage detection device of claim 3, wherein: the liquid pumping device (13) comprises a liquid outlet pipe (131), and the liquid outlet pipe (131) extends to the outer side of the flange interface (6) through a gap between the two air bags.
5. The gas pipe flange joint leakage detection device of claim 3, wherein: the sensor (31) extends through the gap between the two airbags to the outside of the flange connection (6).
6. The gas pipe flange joint leakage detection device of claim 3, wherein: the first sealing element (22) is connected to an annular cladding element (21), and the cladding element (21) comprises a first split body (211) and a second split body (212).
7. The gas pipe flange connection gas leakage detection device of claim 6, wherein: the first sealing elements (22) comprise two groups, the inner wall of the first split body (211) is connected with one group of the first sealing elements (22), and the inner wall of the second split body (212) is connected with the other group of the first sealing elements (22); and the first assembling split body (211) or/and the second assembling split body (212) is/are provided with an inflating device (23), and the inflating device (23) is used for inflating the air bag.
8. The gas pipe flange joint leakage detection device of claim 1, wherein: the liquid storage box is characterized by further comprising a shell (7), wherein the shell (7) is used for containing and fixing the liquid storage box (11).
9. The gas pipe flange joint leakage detection device of claim 1, wherein: the leakage stoppage module further comprises a connecting piece (14) connected with the liquid outlet pipe (131) and the spraying piece (15), the connecting piece (14) is arc-shaped, and the spraying pieces (15) are circumferentially arrayed on the connecting piece (14) and aligned to the flange interface (6).
10. The gas pipe flange joint leakage detection device of claim 1, wherein: the detection module (3) further comprises a positioning piece (34) and a signal emitting device (33), wherein the positioning piece (34) is used for positioning the position of the flange interface (6); the signal emitting device (33) is electrically connected with the sensor (31) and used for outputting an alarm signal when the flange interface (6) is detected to be air-leakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121054152.1U CN216344661U (en) | 2021-05-17 | 2021-05-17 | Gas pipeline flange joint leakage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121054152.1U CN216344661U (en) | 2021-05-17 | 2021-05-17 | Gas pipeline flange joint leakage detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216344661U true CN216344661U (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121054152.1U Expired - Fee Related CN216344661U (en) | 2021-05-17 | 2021-05-17 | Gas pipeline flange joint leakage detection device |
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| Country | Link |
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| CN (1) | CN216344661U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117739286A (en) * | 2024-02-19 | 2024-03-22 | 山东成越新能源科技有限公司 | Sealing detection processing device for boiler pipeline joint and application method thereof |
-
2021
- 2021-05-17 CN CN202121054152.1U patent/CN216344661U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117739286A (en) * | 2024-02-19 | 2024-03-22 | 山东成越新能源科技有限公司 | Sealing detection processing device for boiler pipeline joint and application method thereof |
| CN117739286B (en) * | 2024-02-19 | 2024-04-30 | 山东成越新能源科技有限公司 | Sealing detection processing device for boiler pipeline joint and application method thereof |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220419 |