CN210831453U - Natural gas line leakage detection system - Google Patents
Natural gas line leakage detection system Download PDFInfo
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- CN210831453U CN210831453U CN201921939487.4U CN201921939487U CN210831453U CN 210831453 U CN210831453 U CN 210831453U CN 201921939487 U CN201921939487 U CN 201921939487U CN 210831453 U CN210831453 U CN 210831453U
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Abstract
The utility model belongs to the technical field of the natural gas line detects technique and specifically relates to a natural gas line leak testing system is related to, its technical scheme main points are: including setting up the detection device at the flange joint department of pipeline, detection device includes first installation piece and the second installation piece of mutual butt, first installation piece all is inside cavity and one end opening form with the second installation piece, first installation piece open end lateral wall is provided with the first arc wall with pipeline outer wall butt, second installation piece open end lateral wall is provided with the second arc wall with pipeline outer wall butt, first installation piece encloses flange joint department with the second installation piece and establishes into closed cavity, be provided with the closure subassembly between first installation piece and second installation piece, the inner wall of first installation piece is provided with the natural gas sensor that can dismantle the connection, first installation piece is provided with the alarm of being connected with the natural gas sensor electricity. The natural gas pipeline detection effect is not easily influenced by external factors.
Description
Technical Field
The utility model belongs to the technical field of the natural gas line detects technique and specifically relates to a natural gas line leakage detection system is related to.
Background
The natural gas pipeline is a pipeline for conveying natural gas from an exploitation place or a processing plant to a city gas distribution center or an industrial enterprise user, and is also called a gas transmission pipeline, the natural gas pipeline brings convenience to thousands of households and brings potential safety hazards, firstly, the natural gas is flammable and explosive gas, when a leakage accident occurs, disasters such as explosion, fire and the like are easily caused, the production and life safety of people is threatened, and therefore leakage detection needs to be carried out on the natural gas pipeline.
Natural gas line among the prior art mainly connects through the ring flange, natural gas leakage often takes place for its junction, in the testing process, mainly rely on the manual work to carry natural gas response equipment to detect or set up the installation in the room and detect alarm device and detect natural gas line's leakage, nevertheless because natural gas line installs in various areas, the effect that detects sometimes can receive the influence of environment, be unfavorable for natural gas line's leakage detection, for example, when natural gas line installs in spacious position, the natural gas that is revealed the pipeline can blow off under natural wind's effect, cause the influence detection effect, the event needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a natural gas line leak testing system through setting up first installation piece and second installation piece, encloses flange joint and establishes into closed cavity, and then closed cavity makes the testing environment not influenced by external factor, and then has guaranteed the precision of testing result.
In order to achieve the above object, the utility model provides a following technical scheme: a natural gas pipeline leakage detection system comprises a detection device arranged at a flange joint of a pipeline, wherein the detection device comprises a first installation block and a second installation block which are mutually abutted, the interiors of the first installation block and the second installation block are both hollow, the surfaces of the first installation block and the second installation block, which are opposite to each other, are both open, a first arc-shaped groove abutted against the outer wall of the pipeline is arranged on one side of the opening of the first installation block, a second arc-shaped groove abutted against the outer wall of the pipeline is arranged on one side of the opening of the second installation block, the flange joint is enclosed into a closed cavity by the first installation block and the second installation block, a locking assembly used for locking and unlocking the first installation block and the second installation block is arranged between the first installation block and the second installation block, and a natural gas sensor is arranged on the inner wall of the first installation block, the first installation block is provided with an alarm electrically connected with the natural gas sensor.
By adopting the technical scheme, the flange joint is surrounded into the closed cavity by arranging the first mounting block and the second mounting block, so that the closed cavity prevents the detection environment from being influenced by external factors, and the accuracy of the detection result is ensured; when natural gas leaks at the flange joint, the sensor arranged on the inner wall of the first mounting block contacts natural gas to generate an electric signal, and the electric signal is transmitted to the alarm to give an alarm, so that the leakage detection of the natural gas is realized.
The utility model discloses further set up to: the surface of first arc wall and pipeline outer wall butt is provided with first elastic sealing strip, the surface of second arc wall and pipeline outer wall butt is provided with second elastic sealing strip.
By adopting the technical scheme, the first elastic sealing strip and the second elastic sealing strip are arranged, so that the sealing property of the closed cavity is enhanced, the closed cavity is less influenced by the outside, and the detection result is more accurate.
The utility model discloses further set up to: the locking assembly comprises a connecting rod, a first locking piece and a second locking piece, wherein the connecting rod is hinged to the outer wall of one side of the opening of the first mounting block, the first locking piece is hinged to the free end of the connecting rod, the second locking piece is fixedly connected to the outer wall of the opening end of the second mounting block, and the first locking piece and the second locking piece are in lock joint fit with each other.
By adopting the technical scheme, the first locking piece and the second locking piece which are matched with each other are arranged between the first mounting block and the second mounting block, so that locking and unlocking between the first mounting block and the second mounting block are realized.
The utility model discloses further set up to: the first locking piece comprises a locking portion, a hinged portion and a rotating portion, the hinged portion is located between the locking portion and the rotating portion, the free end of the connecting rod is hinged to the hinged portion, and the second locking piece is provided with a locking groove matched with the locking portion in a buckling mode.
By adopting the technical scheme, the locking part is buckled in the locking groove by rotating the connecting rod and shifting the rotating part, so that the first locking part and the second locking part are locked, and the rotating part is shifted in the opposite direction again to enable the locking part to be loosened in the locking groove, so that the first locking part and the second locking part are unlocked.
The utility model discloses further set up to: first installation piece has first locating piece and second locating piece to the outside extension of lateral wall, first locating piece is provided with first pinhole, second locating piece (13) are provided with the second pinhole, the pipeline is provided with respectively along vertical direction and pegs graft complex first locating pin and pegs graft complex second locating pin with the second pinhole with first pinhole, first locating pin with the second locating pin is located the relative both sides of flange joint department respectively.
By adopting the technical scheme, the transverse limit of the first installation block is realized by utilizing the insertion fit of the first positioning pin and the first pin hole and the insertion fit of the second positioning pin and the first pin hole, so that the stability of the detection device connected to the pipeline is improved.
The utility model discloses further set up to: still include the mount pad, the mount pad is including installing in the mounting panel of first installation piece inner wall, and is being located mounting panel one side and the location boss that extends along perpendicular mounting panel direction, the natural gas sensor is installed in the opposite side of mounting panel, the lateral wall of first installation piece is provided with the confession the through-hole that the boss runs through is fixed a position, the mounting panel with first installation piece inner wall offsets, can dismantle between mounting panel and the first installation piece and be connected.
By adopting the technical scheme, the natural gas sensor is installed on the inner wall of the first installation block through the installation seat, and the positioning boss enables the installation seat to be limited, so that the installation seat is more stable.
The utility model discloses further set up to: the mounting plate is fixedly connected with the first mounting block through a bolt.
By adopting the technical scheme, the mounting plate is connected with the first mounting block through the bolts, the detachable mounting of the mounting seat is realized, and then the detachable mounting of the natural gas sensor is realized, so that the natural gas sensor is convenient to detach and replace.
The utility model discloses further set up to: the natural gas sensor is an MQ-4 sensor.
By adopting the technical scheme, the MQ-4 sensor has good detection sensitivity, long-term practical service life and higher reliability, and well meets the use working condition during detection.
The utility model discloses further set up to: the alarm is located the outside of first installation piece, just the alarm is provided with bee calling organ and pilot lamp.
By adopting the technical scheme, the buzzer and the indicating lamp are arranged on the alarm, so that a better warning effect is achieved when the natural gas sensor detects natural gas leakage.
To sum up, the utility model discloses a beneficial technological effect does:
1. when natural gas leakage occurs in the flange joint, a sensor arranged on the inner wall of the first mounting block is contacted with natural gas to generate an electric signal, and the electric signal is transmitted to an alarm to give an alarm, so that natural gas leakage detection is realized;
2. the first elastic sealing strip is arranged at the first arc-shaped groove, and the second elastic sealing strip is arranged at the second arc-shaped groove, so that the sealing property of the closed cavity is enhanced, the closed cavity is less influenced by the outside, and the detection result is more accurate;
3. the natural gas sensor is installed on the first installation block dismounting installation seat relatively, so that the natural gas sensor is dismounted relative to the first installation block, and the natural gas sensor is convenient to maintain and replace.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
figure 2 is a partial cross-sectional view of an embodiment of the invention;
FIG. 3 is an enlarged schematic view of portion A of FIG. 1;
fig. 4 is a schematic view of the assembly relationship between the first mounting block and the second mounting block and the pipeline in the embodiment of the present invention.
In the figure, 1, a first mounting block; 11. a first arc-shaped slot; 111. a first elastic sealing strip; 12. a first positioning block; 121. a first pin hole; 13. a second positioning block; 131. a second pin hole; 2. a second mounting block; 21. a second arc-shaped slot; 211. a second elastic sealing strip; 3. sealing the cavity; 4. a locking assembly; 41. a connecting rod; 42. a first locking member; 421. a locking portion; 422. a hinge portion; 423. a rotating part; 43. a second locking member; 431. locking the groove; 5. a natural gas sensor; 6. an alarm; 61. a buzzer; 62. an indicator light; 7. a pipeline; 71. a first positioning pin; 72. a second positioning pin; 8. a mounting seat; 81. mounting a plate; 82. and (5) positioning the boss.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model provides a natural gas line leak testing system, refers to fig. 1 and 2, including installing the detection device in 7 flange joint departments of pipeline, specifically, detection device includes first installation piece 1 and the second installation piece 2 of mutual butt, and the inside of first installation piece 1 and second installation piece 2 all is the cavity setting, and the relative surface of first installation piece and second installation piece all is the opening setting, and in this embodiment, first installation piece 1 all is the cuboid form with second installation piece 2.
Simultaneously, first arc 11 with the complex of 7 outer walls butt is seted up to 1 open-ended one side of first installation piece, 2 open-ended one sides of second installation piece are seted up with 7 outer walls butt complex second arc 21 of pipeline, and first installation piece 1 offsets with the relative surface of second installation piece 2, and first installation piece 1 encloses flange joint with second installation piece 2 and establishes into closed cavity 3, and closed cavity 3 makes the testing environment of natural gas not influenced by external factor. Wherein, install first elastic sealing strip 111 in the surface department that first arc wall 11 and pipeline 7 outer wall offset, install second elastic sealing strip 211 in the surface department that second arc wall 21 and pipeline 7 outer wall offset, in this embodiment, first elastic sealing strip 111 and second elastic sealing strip 211 can correspond through the adhesive mode respectively and connect in first arc wall 11 and second arc wall 21, first elastic sealing strip 111 has strengthened the leakproofness of closed cavity 3 with second elastic sealing strip 211, it is littleer to make closed cavity 3 receive external influence, promote the precision of testing result.
In addition, referring to fig. 3 and 4, locking assemblies 4 for locking and unlocking the first and second mounting blocks 1 and 2 are installed between the first and second mounting blocks 1 and 2 at opposite sides of the inspection device. Specifically, the locking component 4 comprises a connecting rod 41 hinged to the outer wall of one side of the opening of the first mounting block 1, a first locking piece 42 hinged to the free end of the connecting rod 41, and a second locking piece 43 fixedly connected to the outer wall of one side of the opening of the second mounting block 2, wherein the first locking piece 42 and the second locking piece 43 are in mutual buckling fit. The first locking element 42 includes a locking portion 421, a hinge portion 422 and a rotating portion 423, the hinge portion 422 is located between the locking portion 421 and the rotating portion 423, the free end of the connecting rod 41 is hinged to the hinge portion 422, and the second locking element 43 is provided with a locking groove 431 in lock-fit with the locking portion 421. The locking portion 421 can be locked in the locking groove 431 by rotating the connecting rod 41 and the rotating portion 423, and the locking portion 421 and the locking groove 431 can be unlocked by shifting the rotating portion 423, so that the locking and the unlocking between the first mounting block 1 and the second mounting block 2 are realized.
Referring to fig. 2 and 4, the inner wall of the first mounting block 1 is also detachably connected with a natural gas sensor 5, and in the embodiment, an MQ-4 sensor with the advantages of good sensitivity and reliability can be preferred. Still fixed mounting has the alarm 6 of being connected with natural gas sensor 5 electricity on the first installation piece 1, and alarm 6 is located the outside of first installation piece 1, and alarm 6 is provided with bee calling organ 61 and pilot lamp 62, and alarm 6 is used for sending out the leakage alarm, and bee calling organ 61 and pilot lamp 62 make alarm 6 have better warning effect. Wherein, in order to realize the dismantlement of natural gas sensor 5 and first installation piece 1 and be connected, detachable mount pad 8 is installed to first installation piece 1, and natural gas sensor 5 installs on mount pad 8.
Specifically, the mounting base 8 includes the mounting plate 81 that passes through bolted connection in first installation piece 1 and is being located mounting plate 81 one side and along the location boss 82 that extends of perpendicular mounting plate 81 direction, and natural gas sensor 5 installs in the one side that the boss 82 was kept away from in mounting plate 81, and the lateral wall of first installation piece 1 is provided with the through-hole that supplies location boss 82 to run through. Natural gas sensor 5 is installed in the inner wall of first installation piece 1 through mount pad 8, and bolted connection between mounting panel 81 and first installation piece 1, and then has realized the demountable installation of mount pad 8, has made things convenient for the dismantlement of natural gas sensor 5 to change.
Referring to fig. 2, the first mounting block 1 has a first positioning block 12 and a second positioning block 13 extending outward from the sidewall, and the first positioning block 12 and the second positioning block 13 are integrally formed with the first mounting block 1. The first positioning block 12 is provided with a first pin hole 121, the second positioning block 13 is provided with a second pin hole 131, the first pin hole 121 vertically penetrates through the upper and lower surfaces of the first positioning block 12, and the second pin hole 131 penetrates through the upper and lower surfaces of the second positioning block 13. Pipeline 7 is provided with respectively along vertical direction with first locating pin 71 of first pinhole 121 grafting cooperation and with second locating pin 72 of second pinhole 131 grafting cooperation, and is specific, and first locating pin 71 all fixes through the welding with pipeline 7 with second locating pin 72, and first locating pin 71 is located the relative both sides of flange joint with second locating pin 72 respectively. The first positioning pin 71 is inserted into the first positioning block 12 in the first mounting block 1, and the second positioning pin 72 is inserted into the second positioning block 13 in the first mounting block 1, so that the first mounting block 1 is transversely limited during operation, and the stability of the detection device connected to the pipeline is further improved.
The implementation principle of the embodiment is as follows: the system is provided with a detection device comprising a first installation block 1 and a second installation block 2, the first installation block 1 is matched with the second installation block 2 to accommodate a flange joint into a closed cavity 3, the closed cavity 3 enables a detection environment not to be influenced by external factors, accuracy of a detection result is guaranteed, meanwhile, a first elastic sealing strip 111 is arranged on a first arc-shaped groove 11 of the first installation block 1, and a second elastic sealing strip 211 is arranged on a second arc-shaped groove 21 of the second installation block 2, so that the sealing performance of the closed cavity 3 is better, and the detection result is further guaranteed; when natural gas leakage occurs in the flange joint, a sensor arranged on the inner wall of the first mounting block 1 contacts natural gas to generate an electric signal, the electric signal is transmitted to the alarm 6, and an upper buzzer 61 and an indicator lamp 62 arranged on the alarm 6 give out an alarm, so that the leakage detection of the natural gas is realized.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. A natural gas pipeline leakage detection system which characterized in that: including setting up the detection device at the flange joint department of pipeline (7), detection device includes first installation piece (1) and second installation piece (2) of mutual butt, first installation piece (1) with the inside of second installation piece (2) all is the cavity setting, and first installation piece (1) with the surface that second installation piece (2) are relative all is the opening setting, first installation piece (1) open-ended one side be provided with first arc wall (11) of pipeline (7) outer wall butt, second installation piece (2) open-ended one side be provided with second arc wall (21) of pipeline (7) outer wall butt, first installation piece (1) with second installation piece (2) will flange joint department encloses into closed cavity (3), first installation piece (1) with be provided with between second installation piece (2) and be used for the closure and unblock the closure group of first installation piece (1) and second installation piece (2) Piece (4), first installation piece (1) inner wall is provided with natural gas sensor (5), first installation piece (1) be provided with alarm (6) that natural gas sensor (5) electricity is connected.
2. A natural gas pipeline leak detection system as claimed in claim 1, wherein: the surface that first arc wall (11) and pipeline (7) outer wall butt is provided with first elastic sealing strip (111), the surface that second arc wall (21) and pipeline (7) outer wall butt is provided with second elastic sealing strip (211).
3. A natural gas pipeline leak detection system as claimed in claim 1, wherein: the locking component (4) comprises a connecting rod (41) hinged with the outer wall of one side of the opening of the first mounting block (1), a first locking piece (42) hinged with the free end of the connecting rod (41) and a second locking piece (43) fixedly connected with the outer wall of the opening end of the second mounting block (2), and the first locking piece (42) and the second locking piece (43) are mutually buckled and matched.
4. A natural gas pipeline leak detection system as claimed in claim 3, wherein: the first locking piece (42) comprises a locking portion (421), a hinge portion (422) and a rotating portion (423), the hinge portion (422) is located between the locking portion (421) and the rotating portion (423), the free end of the connecting rod (41) is hinged to the hinge portion (422), and the second locking piece (43) is provided with a locking groove (431) which is matched with the locking portion (421) in a buckling mode.
5. A natural gas pipeline leak detection system as claimed in claim 1, wherein: first installation piece (1) extends to the lateral wall outside has first locating piece (12) and second locating piece (13), first locating piece (12) are provided with first pinhole (121), second locating piece (13) are provided with second pinhole (131), pipeline (7) are provided with respectively along vertical direction with first pinhole (121) grafting complex first locating pin (71) and with second pinhole (131) grafting complex second locating pin (72), first locating pin (71) with second locating pin (72) are located the relative both sides in flange joint respectively.
6. A natural gas pipeline leak detection system as claimed in claim 1, wherein: still include mount pad (8), mount pad (8) are including installing in mounting panel (81) of first installation piece (1) inner wall, and are being located mounting panel (81) one side and along location boss (82) that perpendicular mounting panel (81) direction extends, install in the opposite side of mounting panel (81) natural gas sensor (5), the lateral wall of first installation piece (1) is provided with the confession location boss (82) through-hole that runs through, mounting panel (81) with first installation piece (1) inner wall offsets, can dismantle between mounting panel (81) and first installation piece (1) and be connected.
7. The natural gas pipeline leak detection system of claim 6, wherein: the mounting plate (81) is fixedly connected with the first mounting block (1) through a bolt.
8. The natural gas pipeline leak detection system of claim 6, wherein: the natural gas sensor (5) is an MQ-4 sensor.
9. A natural gas pipeline leak detection system as claimed in claim 1, wherein: the alarm (6) is located on the outer side of the first mounting block (1), and the alarm (6) is provided with a buzzer (61) and an indicator lamp (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921939487.4U CN210831453U (en) | 2019-11-11 | 2019-11-11 | Natural gas line leakage detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921939487.4U CN210831453U (en) | 2019-11-11 | 2019-11-11 | Natural gas line leakage detection system |
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| Publication Number | Publication Date |
|---|---|
| CN210831453U true CN210831453U (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921939487.4U Active CN210831453U (en) | 2019-11-11 | 2019-11-11 | Natural gas line leakage detection system |
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| CN (1) | CN210831453U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146827A (en) * | 2020-09-01 | 2020-12-29 | 水木鸟(重庆)安全技术有限公司 | Poisonous and harmful gas on-line monitoring device |
-
2019
- 2019-11-11 CN CN201921939487.4U patent/CN210831453U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146827A (en) * | 2020-09-01 | 2020-12-29 | 水木鸟(重庆)安全技术有限公司 | Poisonous and harmful gas on-line monitoring device |
| CN112146827B (en) * | 2020-09-01 | 2022-10-28 | 水木鸟(重庆)安全技术有限公司 | Poisonous and harmful gas on-line monitoring device |
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