CN212840758U

CN212840758U - Natural gas line leakage detection device

Info

Publication number: CN212840758U
Application number: CN202021775499.0U
Authority: CN
Inventors: 殷建康; 关淳; 李红芳
Original assignee: Nanjing Jiening Gas Co ltd
Current assignee: Nanjing Jiening Gas Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-03-30
Anticipated expiration: 2030-08-21

Abstract

The application relates to a natural gas pipeline leakage detection device, which relates to the field of natural gas transportation and comprises a bladder piece, a detection seat, a linkage rod, a trigger piece and an alarm, wherein the bladder piece is an elastic piece and is arranged between the peripheral walls of the connecting ends of two pipelines, and a sealing cavity is formed between the bladder piece and the peripheral walls of the pipelines; the utility model discloses a capsule bag, including detect seat, linkage rod, gasbag piece, detection seat, linkage rod, detection chamber, detection seat, linkage rod, detection piece and control alarm, it sets up on the periphery wall of pipeline to detect the seat, be provided with the detection room in detecting the seat, the one end that the pipeline was kept away from to detect the seat is provided with the feed tank, feed tank and detection room intercommunication, the linkage rod slides and sets up on the cell wall of feed tank, the one end that the linkage rod stretches out the feed tank is connected with the gasbag piece, trigger the piece sets up in detecting the detection room in the seat. The application can detect the leakage of the natural gas in time, thereby improving the safety of natural gas transportation.

Description

Natural gas line leakage detection device

Technical Field

The application relates to the field of natural gas transportation, in particular to a natural gas pipeline leakage detection device.

Background

Natural gas refers to a mixture of hydrocarbon and non-hydrocarbon gases naturally trapped in the formation, which is mainly present in oil fields and natural gas fields, and also in small quantities in coal seams, and is mainly used as fuel for producing carbon black, chemicals and liquefied petroleum gas.

Because natural gas belongs to gas, therefore the multi-purpose gas transmission pipeline carries, and the gas transmission pipeline is mostly assembled by single pipe connection one by one, forms closed system in order to carry the natural gas.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the existing pipeline connection is usually through flange connection, after a long time, the flange is aged, natural gas is easy to leak, and the natural gas contains a large amount of toxic and combustible components, and if the natural gas is not discovered in time, the result is not reasonable.

SUMMERY OF THE UTILITY MODEL

In order to improve the security that natural gas line carried, this application provides a natural gas line leakage detection device.

The application provides a natural gas line leakage detection device adopts following technical scheme:

a natural gas pipeline leakage detection device comprises a bladder piece, a detection seat, a linkage rod, a trigger piece and an alarm, wherein the bladder piece is an elastic piece and is arranged between the peripheral walls of the connecting ends of two pipelines, and a sealing cavity is formed between the bladder piece and the peripheral walls of the pipelines; the utility model discloses a capsule bag, including detect seat, linkage rod, gasbag piece, detection seat, linkage rod, detection chamber, detection seat, linkage rod, detection piece and control alarm, it sets up on the periphery wall of pipeline to detect the seat, be provided with the detection room in detecting the seat, the one end that the pipeline was kept away from to detect the seat is provided with the feed tank, feed tank and detection room intercommunication, the linkage rod slides and sets up on the cell wall of feed tank, the one end that the linkage rod stretches out the feed tank is connected with the gasbag piece, trigger the piece sets up in detecting the detection room in the seat.

By adopting the technical scheme, the capsule tablet forms a sealed cavity at the connecting end of the pipeline, and once the pipeline leaks, the sealed cavity formed by the capsule tablet can prevent the natural gas from further diffusing; meanwhile, along with the gradual leakage of natural gas, the pressure in the sealing cavity is gradually increased, and the capsule can elastically deform, so that the capsule can pull the linkage rod to move in the feeding groove, the trigger piece is triggered, the alarm gives an alarm, workers are timely informed of the leakage of the pipeline, and the workers can repair the pipeline immediately.

Preferably, trigger piece includes that stripper plate, concentration detector and can garrulous wrap up in the bubble, the stripper plate setting stretches into the one end that detects the room at the gangbar, the stripper plate will detect the room and divide into and trigger the chamber and detect the chamber, it is located one side that the stripper plate is close to the feed chute to trigger the chamber, it is located one side that the feed chute was kept away from to detect the chamber, can garrulous wrap up in the bubble is located the trigger chamber that detects the seat, concentration detector is located the detection chamber that detects the seat, concentration detector control alarm works.

Through adopting above-mentioned technical scheme, behind the bag piece deformation, can make the gangbar drive the stripper plate and shift up, the stripper plate can extrude and can crumbly wrap up in the bubble this moment to can crumbly wrap up in the bubble breakage, can crumbly wrap up in the detection liquid in the bubble can flow into and detect the chamber, arouses the change that detects liquid concentration in the chamber, thereby concentration detector can make the alarm report to the police according to the liquid change in detecting the chamber.

Preferably, be provided with the sealing strip on the end wall of cyst piece, be provided with sealed even groove on the periphery wall of pipeline, the sealing strip is pegged graft with sealed even groove cell wall seal, the one end that the cyst piece was kept away from to the sealing strip is provided with sealed dop, sealed even groove is kept away from and is provided with sealed annular on the cell wall of notch, sealed dop and sealed annular elastic clamping.

By adopting the technical scheme, the sealing strip and the sealing connection groove are in sealing insertion connection, the basic sealing connection of the capsule piece and the pipeline can be realized, the sealing chuck is in elastic clamping connection with the sealing connection groove, when the connection sealing performance between the capsule piece and the pipeline is further improved, the capsule piece is elastically deformed and is relatively far away from the pipeline, the sealing chuck can be further abutted against the sealing ring groove, and the secondary leakage of natural gas from the capsule piece is effectively reduced.

Preferably, the end wall of the extrusion plate is in sliding contact with the side wall of the detection chamber, and a leak hole is formed in the extrusion plate in a penetrating mode.

By adopting the technical scheme, the crumbable wrapping foam can be prevented from sliding off from the gap between the extrusion plate and the detection chamber, so that the extrusion plate can fully act on the crumbable wrapping foam; simultaneously, the leakage holes are formed, so that the detection liquid in the wrapping bubble can smoothly flow to the detection cavity.

Preferably, the side wall of the detection seat opposite to the detection chamber is a transparent side wall, and a breakable colored wrapped bubble is arranged in the trigger cavity of the detection seat.

Through adopting above-mentioned technical scheme, but garrulous coloured wrapping up bubble is followed can garrulous wrapping up bubble and is broken together, and the coloured liquid in the coloured wrapping up bubble of garrulous also flows into and detects the chamber to when concentration detector does not respond in time, the personnel of patrolling and examining can be directly through running through the colour that detects the seat, come the shell natural gas whether leak.

Preferably, a needle is arranged on the cavity wall of the trigger cavity opposite to the extrusion plate.

Through adopting above-mentioned technical scheme, when the extrusion board shifts up the extrusion and can crumbly wrap up in the bubble, support the needle and can puncture smoothly and can crumble and wrap up in the bubble for can crumbly wrap up in the bubble and break smoothly.

Preferably, a protection plate is arranged on the cavity wall of the trigger cavity, a needle outlet groove is formed in the protection plate in a penetrating mode, the needle abutting groove is opposite to the needle outlet groove, and the length of the needle abutting along the moving direction of the extrusion plate is larger than the thickness of the protection plate.

By adopting the technical scheme, when the pipeline works normally, the protection plate can be put on the top end of the breakable wrapped foam under the action of the self gravity, so that the pushing needle and the breakable wrapped foam are isolated, and the mistaken pricking of the pushing needle to the breakable wrapped foam is reduced; and when the pipeline leaks, along with the extrusion plate is pulled by the linkage rod, the breakable wrapped foam can also push the protection plate to move upwards, so that the pushing needle can be smoothly pricked on the breakable wrapped foam.

Preferably, one side of the extrusion plate, which is far away from the linkage rod, is provided with a disturbance sheet.

Through adopting above-mentioned technical scheme, but utilize the vibrational force that can garrulous wrap up the broken production in the twinkling of an eye of bubble, impel the stripper plate to drive the disturbance piece and remove in detecting the chamber to utilize the disturbance piece to impel the detection liquid that can garrulous wrap up in the bubble to scatter fast in detecting the chamber, improve the speed that concentration detector detected.

In summary, the present application includes at least one of the following beneficial technical effects:

1. according to the natural gas pipeline emergency repair device, the bladder sheet is used for preventing further diffusion of natural gas, meanwhile, the bladder sheet is also used for elastically deforming, so that the bladder sheet pulls the linkage rod to move in the feeding groove, the trigger piece is triggered, the alarm is prompted to alarm, workers are informed of pipeline leakage in time, and the workers can repair the pipeline immediately;

2. due to the arrangement of the supporting needle and the protection plate, when the pipeline works normally, the protection plate can be put on the top end of the breakable wrapped foam under the action of the gravity of the protection plate, so that the supporting needle and the breakable wrapped foam are isolated, and the mistaken pricking of the supporting needle to the breakable wrapped foam is reduced; and when the pipeline leaks, along with the extrusion plate is pulled by the linkage rod, the breakable wrapped foam can also push the protection plate to move upwards, so that the pushing needle can be smoothly pricked on the breakable wrapped foam.

Drawings

Fig. 1 is a schematic structural diagram of a natural gas pipeline leakage detection device according to the present application.

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is a partial sectional view of a detection seat structure in a natural gas pipeline leakage detection apparatus embodying the present invention.

Fig. 4 is an enlarged view at B in fig. 3.

Description of reference numerals: 1. a pipeline; 11. sealing the connecting groove; 12. sealing the ring groove; 2. a caplet; 21. sealing the cavity; 22. a sealing strip; 221. sealing the chuck; 3. a detection seat; 31. a detection chamber; 311. a trigger chamber; 312. a detection chamber; 32. a feed slot; 4. a linkage rod; 5. a trigger; 51. a pressing plate; 511. a leak hole; 512. a disturbance plate; 52. a concentration detector; 53. can be crushed and wrapped; 531. can be crushed, colored and wrapped; 6. an alarm; 7. needle pushing; 71. a protection plate; 711. and (4) needle outlet grooves.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses natural gas line leakage detection device.

As shown in fig. 1 and 2, a natural gas pipeline leakage detection device mainly comprises a capsule 2, a detection seat 3, a linkage rod 4, a trigger 5 and an alarm 6, wherein the capsule 2 is an elastic piece and is installed between the outer peripheral walls of the connecting ends of two pipelines 1, in this embodiment, a sealing connecting groove 11 is concavely formed on the outer peripheral wall of the pipeline 1, a sealing strip 22 is integrally connected to the end wall of the capsule 2, the sealing strip 22 and the groove wall of the sealing connecting groove 11 belong to sealing insertion, meanwhile, a sealing ring groove 12 is further formed on the groove wall of the sealing connecting groove 11 far away from the groove opening, a sealing chuck 221 is arranged at one end of the sealing strip 22 far away from the capsule 2, the sealing chuck 221 and the sealing ring groove 12 belong to elastic clamping connection, therefore, the sealing connection of the capsule 2 and the pipeline 1 can be achieved by the sealing insertion of the sealing strip 22 and the sealing connecting groove 11 and the elastic clamping connection of the sealing, so that a sealed chamber 21 is formed between the outer peripheral walls of the pipe 1.

As shown in fig. 1 and 3, a detection seat 3 is integrally connected to the top end of the peripheral wall of a pipeline 1, a detection chamber 31 is formed in the detection seat 3, meanwhile, a feeding groove 32 is formed in one end, away from the pipeline 1, of the detection seat 3, the feeding groove 32 is communicated with the detection chamber 31, a linkage rod 4 is arranged on the groove wall of the feeding groove 32 in a sliding manner along the vertical direction, and the linkage rod 4 is in sealing abutting joint with the groove wall of the feeding groove 32; one end of the linkage rod 4 extending out of the feeding groove 32 is fixedly connected with the caplet 2, the trigger piece 5 is arranged in a detection chamber 31 in the detection seat 3, and the trigger piece 5 is connected with one end of the linkage rod 4 extending into the detection chamber 31; moreover, the alarm 6 in the embodiment is installed on the peripheral wall of the pipeline 1, and the triggering piece 5 is electrically connected with the alarm 6 and controls the alarm 6 to work. Once the natural gas in the pipeline 1 leaks, the leaked natural gas can fill the sealed cavity 21, and the capsule piece 2 deforms along with the increase of the pressure in the sealed cavity 21, so that the linkage rod 4 can be driven to move upwards, the linkage rod 4 triggers the trigger piece 5 at the moment, the alarm 6 can give an alarm, and a worker can timely obtain the natural gas leakage information.

As shown in fig. 3 and 4, the trigger 5 includes a squeezing plate 51, a concentration detector 52 and a breakable wrapping bubble 53, the squeezing plate 51 is integrally connected to one end of the linkage rod 4 extending into the detection chamber 31, and a horizontal peripheral wall of the squeezing plate 51 is abutted to a side wall of the detection chamber 31; the squeeze plate 51 divides the detection chamber 31 into a trigger cavity 311 and a detection cavity 312, the trigger cavity 311 is located above the squeeze plate 51, the detection cavity 312 is located below the squeeze plate 51, clear water is filled in the detection cavity 312, the breakable wrapping bubbles 53 are placed in the trigger cavity 311 of the detection seat 3, detection liquid is filled in the breakable wrapping bubbles 53, meanwhile, a plurality of leakage holes 511 are formed in the squeeze plate 51 in a penetrating mode, and the concentration detector 52 is installed in the liquid in the detection cavity 312 of the detection seat 3. Once the linkage rod 4 moves upwards, the extrusion plate 51 moves upwards, at the moment, the trigger cavity 311 is relatively reduced, the breakable wrapped bubble 53 is extruded and damaged, so that the detection liquid in the breakable wrapped bubble 53 flows into the detection cavity 312 through the leakage hole 511, the concentration of the clean water in the detection cavity 312 is changed due to the mixed detection liquid, at the moment, the concentration detector 52 can transmit a concentration signal to the alarm 6, and the alarm 6 gives an alarm.

As shown in fig. 3, in order to rapidly mix the detection liquid and the clean water, a disturbance plate 512 is integrally connected to a side of the pressing plate 51 away from the linkage rod 4. When moving up at the stripper plate 51, can crumbly wrap up in the broken moment of bubble 53, the stripper plate 51 can take place to rock, and the stripper plate 51 can drive disturbance piece 512 and rock this moment to can carry out the disturbance that removes to stirring liquid and clear water, make detection liquid and clear water flash mixed, improve the detection timeliness of concentration detector 52.

As shown in fig. 4, in order to crush the breakable wrapped bubble 53 smoothly after the breakable wrapped bubble 53 is squeezed, in this embodiment, the wall of the top end of the trigger cavity 311 is integrally connected with the needle 7; and the trigger cavity 311 is also provided with a protection plate 71, the horizontal end wall of the protection plate 71 is abutted with the wall of the trigger cavity 311, the protection plate 71 is provided with a needle outlet groove 711 in a penetrating way, the needle 7 is opposite to the needle outlet groove 711, and the length of the needle 7 along the moving direction of the extrusion plate 51 is greater than the thickness of the protection plate 71. During normal operation of the duct 1, the protection plate 71 presses against the breakable sheath 53 to isolate the breakable sheath 53 from the abutment 7 due to the weight of the protection plate 71; with the linkage rod 4 driving the extrusion plate 51 to move upwards, the breakable wrapping bubbles 53 can push the protection plate 71 to move upwards, so that the pushing pins 7 extend out of the pin outlet grooves 711 to be in contact with the breakable wrapping bubbles 53, and the breakable wrapping bubbles 53 can be broken smoothly.

As shown in fig. 4, the side wall of the detection seat 3 opposite to the detection chamber 31 is a transparent side wall, a breakable coloring wrapped bubble 531 is further placed in the trigger cavity 311 of the detection seat 3, and a coloring liquid is placed in the breakable coloring wrapped bubble 531, so that when the breakable coloring wrapped bubble 531 and the breakable wrapped bubble 53 are broken, the coloring liquid in the breakable coloring wrapped bubble 531 can enter the detection cavity 312, the detection seat 3 is wholly discolored, and the natural gas leakage condition can be found when the concentration detector 52 does not normally act as a reaction.

The implementation principle of a natural gas pipeline leakage detection device X in the embodiment of the application is as follows: once the natural gas in the pipeline 1 leaks, the leaked natural gas can be filled in the sealed cavity 21, and along with the increase of the pressure in the sealed cavity 21, the capsule piece 2 deforms, so that the linkage rod 4 can be driven to move upwards, the pressing plate 51 can move upwards to press the breakable capsule 53, so that the breakable capsule 53 is broken, the detection liquid in the breakable capsule 53 flows into the detection cavity 312 through the leakage hole 511, so that the concentration of the clean water in the detection cavity 312 is changed due to the mixed detection liquid, at the moment, the concentration detector 52 can transmit a concentration signal to the alarm 6, and the alarm 6 gives an alarm.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a natural gas line leakage detection device which characterized in that: the device comprises a capsule piece (2), a detection seat (3), a linkage rod (4), a trigger piece (5) and an alarm (6), wherein the capsule piece (2) is an elastic piece and is arranged between the peripheral walls of the connecting ends of two pipelines (1), and a sealing cavity (21) is formed between the capsule piece (2) and the peripheral walls of the pipelines (1); detect seat (3) and set up on the periphery wall of pipeline (1), be provided with in detecting seat (3) and detect room (31), the one end of keeping away from pipeline (1) in detecting seat (3) is provided with feed tank (32), feed tank (32) and detection room (31) intercommunication, gangbar (4) slide and set up on the cell wall of feed tank (32), the one end that gangbar (4) stretched out feed tank (32) is connected with cystosepiment (2), trigger piece (5) set up in detecting room (31) in detecting seat (3), trigger piece (5) and gangbar (4) stretch into the one end that detects room (31) and are connected, trigger piece (5) control alarm (6) work.

2. The natural gas pipeline leak detection device according to claim 1, wherein: trigger piece (5) are including stripper plate (51), concentration detector (52) and can crumble and wrap up bubble (53), stripper plate (51) set up the one end that stretches into detection room (31) at gangbar (4), stripper plate (51) will detect room (31) and divide into and trigger chamber (311) and detection chamber (312), trigger chamber (311) and be located stripper plate (51) and be close to one side of feed chute (32), it is located one side that feed chute (32) are kept away from to stripper plate (51) to detect chamber (312), can crumble and wrap up bubble (53) and be located the trigger chamber (311) that detect seat (3), concentration detector (52) are located the detection chamber (312) that detect seat (3), concentration detector (52) control alarm (6) work.

3. The natural gas pipeline leak detection device according to claim 1, wherein: be provided with sealing strip (22) on the end wall of cyst piece (2), be provided with sealed groove (11) even on the periphery wall of pipeline (1), sealing strip (22) and sealed groove (11) cell wall seal are pegged graft even, the one end that cyst piece (2) were kept away from in sealing strip (22) is provided with sealed dop (221), sealed groove (11) are kept away from and are provided with sealed annular (12) on the cell wall of notch even, sealed dop (221) and sealed annular (12) elastic clamping.

4. A natural gas pipeline leak detection apparatus according to claim 2, wherein: the end wall of the extrusion plate (51) is in sliding contact with the side wall of the detection chamber (31), and a leak hole (511) penetrates through the extrusion plate (51).

5. A natural gas pipeline leak detection apparatus according to claim 2, wherein: the side wall of the detection seat (3) opposite to the detection chamber (31) is a transparent side wall, and a breakable and colored wrapped bubble (531) is arranged in a trigger cavity (311) of the detection seat (3).

6. A natural gas pipeline leak detection apparatus according to claim 2, wherein: the cavity wall of the trigger cavity (311) opposite to the extrusion plate (51) is provided with a needle (7).

7. The natural gas pipeline leak detection apparatus according to claim 6, wherein: the needle pushing device is characterized in that a protection plate (71) is arranged on the wall of the trigger cavity (311), a needle outlet groove (711) is formed in the protection plate (71) in a penetrating mode, the needle pushing part (7) is opposite to the needle outlet groove (711), and the length of the needle pushing part (7) in the moving direction of the extrusion plate (51) is larger than the thickness of the protection plate (71).

8. A natural gas pipeline leak detection apparatus according to claim 2, wherein: one side of the extrusion plate (51) far away from the linkage rod (4) is provided with a disturbance sheet (512).