CN213040325U

CN213040325U - Safety protection device for detecting gas leakage of petroleum and natural gas pipeline

Info

Publication number: CN213040325U
Application number: CN202022122929.5U
Authority: CN
Inventors: 李伟斌; 高云
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-04-23
Anticipated expiration: 2030-09-24

Abstract

The utility model discloses a detect safety device of oil and gas pipeline gas leakage, including setting up two install chests at two natural gas line junctions, one side that two install chests are close to each other is all established to the opening, and one side that two install chests are close to each other rotates the installation, all seted up the semicircle orifice on the both sides inner wall of install chests, and one side that two semicircle orifices relative from top to bottom are close to each other all establishes to the opening and constitutes a whole round hole, and the internal cover of whole round hole is equipped with the whole round sealing washer, the outside of natural gas pipeline and the inner wall in close contact with of the whole round sealing washer that corresponds. The utility model relates to a rationally, be convenient for take place in time early warning when slight leakage at the natural gas line junction and remind personnel, not influenced by external factor, can real-time detection, improve detection efficiency, reduce the potential safety hazard, can form interim protection in the junction, and can take off this device fast and install and use in other pipe connection departments, improve application scope, be favorable to the use.

Description

Safety protection device for detecting gas leakage of petroleum and natural gas pipeline

Technical Field

The utility model relates to a pipeline safety protection equipment technical field especially relates to a detect safety device of oil and gas pipeline gas leakage.

Background

Pipeline transportation is a transportation mode of long-distance transportation of liquid and gas materials by using pipelines as transportation tools, is a transportation mode of specially transporting petroleum, natural gas and chemical products to markets from production places, is a special component part of trunk transportation in a unified transportation network, and has unique advantages in oil-gas transportation, firstly, the pipeline transportation is stable and uninterrupted, for modern mass production, oil fields are continuously produced, pipelines can be continuously transported, oil refining chemical industry can continuously produce finished products, most of the existing oil-gas transportation pipelines are welded together through a plurality of pipelines, the welding positions of two adjacent pipelines are places where leakage easily occurs, once the pipelines leak or leak, resource waste can be caused, and potential safety hazards exist, therefore, in the process of pipeline transportation of oil-gas, in order to carry out safety protection on the pipelines, the existing detection method is mainly to detect by utilizing gas detection at fixed time and fixed point manually;

however, the existing leakage detection mode is not convenient for real-time monitoring on the pipeline, and cannot give an alarm in time when the pipeline leaks, particularly, the pipeline exposed outside is influenced by external wind power or temperature, and when the pipeline is detected by an exposed gas detector, the pipeline is difficult to find in time, the monitoring efficiency is low, and the use requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a safety protection device for detecting the gas leakage of a petroleum and natural gas pipeline.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a safety protection device for detecting gas leakage of an oil and gas pipeline comprises two installation boxes arranged at the joint of the two natural gas pipelines, wherein one side, which is close to each other, of each installation box is provided with an opening, one side, which is close to each other, of each installation box is rotatably installed, semicircular holes are formed in the inner walls of the two sides of each installation box, one side, which is close to each other, of each two semicircular holes which are opposite from each other up and down is provided with an opening to form a whole circular hole, a whole circular sealing ring is fixedly sleeved in each whole circular hole, the outer side of each natural gas pipeline is tightly contacted with the inner wall of the corresponding whole circular sealing ring, each whole circular sealing ring is composed of two semicircular sealing rings, the inner walls of the semicircular holes are fixedly bonded with the outer sides of the corresponding semicircular sealing rings, the two installation boxes and the two whole circular sealing rings form a sealing space, the joint of the two natural gas pipelines is positioned, a piston plate is hermetically and slidably sleeved in the rectangular hole, a fixed rod is fixedly arranged between the inner walls of the two sides of the rectangular hole, two first springs are fixedly arranged between the top of the piston plate and the top of the fixed rod, an L-shaped insulating positioning rod is fixedly arranged at the top of the piston plate, the top of the L-shaped insulating positioning rod extends to the upper part of the fixed rod, the fixed rod is slidably sleeved on the L-shaped insulating positioning rod, a first copper sheet is fixedly arranged at the top of the L-shaped insulating positioning rod, an insulating rod positioned above the fixed rod is fixedly arranged on the inner wall of the right side of the rectangular hole, a second copper sheet is fixedly bonded at one side of the bottom of the insulating rod and positioned right above the first copper sheet, the second copper sheet is matched with the first copper sheet, a storage battery and an acoustic alarm are fixedly arranged at one side of the top of the, the second copper sheet is electrically connected with the negative pole of battery, the top thread tightening of the install bin that is located the top has the apron, apron and rectangular hole looks adaptation, the front side fixed mounting of the install bin that is located the below has first rectangle cover, the movable clamping is equipped with L shape kelly in the first rectangle cover, the front side fixed mounting of the install bin that is located the top has second rectangle cover, the top of L shape kelly runs through the top that second rectangle cover extended to second rectangle cover, second rectangle cover slip cap is established on L shape kelly, fixed mounting has the second spring between the top of second rectangle cover and the top inner wall of L shape kelly, second spring movable cap is established on L shape kelly.

Preferably, the same hinge is fixedly installed at the rear sides of the two installation boxes, and the two installation boxes are rotatably installed through the hinge.

Preferably, the top of the fixing rod is provided with a through hole, and the inner wall of the through hole is in sliding connection with the outer side of the L-shaped insulating positioning rod.

Preferably, the storage battery, the sound alarm, the first copper sheet and the second copper sheet sequentially form a loop.

Preferably, the top of the cover plate is provided with a first through hole, and the first through hole is positioned right above the sound alarm.

Preferably, the piston plate is fixedly sleeved with a rectangular sealing ring, and the outer side of the rectangular sealing ring is in sliding connection with the inner wall of the rectangular hole.

Preferably, a limiting groove is formed in the inner wall of the rear side of the L-shaped clamping rod, a limiting block is fixedly mounted on the inner wall of the front side of the second rectangular sleeve, and the limiting block is connected with the limiting groove in a sliding mode.

Preferably, a sealing rubber ring is fixedly bonded to the bottom of the mounting box located above, and the bottom of the sealing rubber ring is in close contact with the top of the mounting box located below.

Compared with the prior art, the beneficial effects of the utility model are that:

through the installation box, the semicircular hole, the semicircular sealing ring, the rectangular hole, the piston plate, the fixed rod, the insulating rod, the L-shaped insulating positioning rod, the first spring, the second copper sheet, the storage battery, the sound alarm, the first copper sheet, the first rectangular sleeve, the second rectangular sleeve and the L-shaped clamping rod, the piston plate, the rectangular sealing ring, the two full-circle sealing rings and the two installation boxes form a small sealing space, when leakage occurs at the joint between the two natural gas pipelines, leaked gas enters the sealing space and gradually pushes the piston plate, the pushing force drives the piston plate to move upwards and compress the two first springs, the piston plate drives the first copper sheet to move upwards through the L-shaped insulating positioning rod to be in movable contact with the bottom of the second copper sheet, the sound alarm sounds and timely reminds workers, the sound of the sound alarm is transmitted to the workers through the first through hole, when two installation boxes need to be taken down from two natural gas pipelines and installed at other natural gas pipeline junctions for use, the L-shaped clamping rod is pulled upwards to move out of the first rectangular sleeve and stretch the second spring, the installation box located above is rotated upwards to drive the two semicircular sealing rings located above to be separated from the natural gas pipelines, the installation box located below can be pulled out, then the two installation boxes can be taken down from the two natural gas pipelines and moved to other pipeline junctions for use, and the two installation boxes can form temporary protection at the junctions when being installed at the two natural gas pipeline junctions.

The utility model relates to a rationally, be convenient for take place in time early warning when slight leakage at the natural gas line junction and remind personnel, not influenced by external factor, can real-time detection, improve detection efficiency, reduce the potential safety hazard, can form interim protection in the junction, and can take off this device fast and install and use in other pipe connection departments, improve application scope, be favorable to the use.

Drawings

Fig. 1 is a schematic cross-sectional structural view of a safety protection device for detecting gas leakage of an oil and gas pipeline according to the present invention;

fig. 2 is the utility model provides a detect safety device's of oil and gas pipeline gas leakage left side partial cut-away view structure schematic diagram.

In the figure: the device comprises an installation box 1, a semicircular hole 2, a semicircular sealing ring 3, a rectangular hole 4, a piston plate 5, a fixing rod 6, an insulating rod 7, an insulating positioning rod 8L-shaped, a first spring 9, a second copper sheet 10, a storage battery 11, a sound alarm 12, a first copper sheet 13, a first rectangular sleeve 14, a second rectangular sleeve 15, a clamping rod 16L-shaped and a second spring 17.

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.

Referring to fig. 1-2, a safety protection device for detecting gas leakage of an oil and gas pipeline comprises two installation boxes 1 arranged at the joint of two gas pipelines, wherein one side of each installation box 1, which is close to each other, is provided with an opening, one side of each installation box 1, which is close to each other, is rotatably installed, the inner walls of the two sides of each installation box 1 are respectively provided with a semicircular hole 2, one side, which is close to each other, of each semicircular hole 2, which is opposite from top to bottom, is provided with an opening to form a whole circular hole, a whole circular sealing ring is fixedly sleeved in each whole circular hole, the outer side of each gas pipeline is tightly contacted with the inner wall of the corresponding whole circular sealing ring, each whole circular sealing ring is composed of two semicircular sealing rings 3, the inner wall of each semicircular hole 2 is fixedly bonded with the outer side of the corresponding semicircular sealing ring 3, the two installation boxes 1 and the two whole circular, the inner wall of the top of the mounting box 1 positioned above the two mounting boxes 1 is provided with a rectangular hole 4, a piston plate 5 is hermetically and slidably sleeved in the rectangular hole 4, a fixed rod 6 is fixedly installed between the inner walls at two sides of the rectangular hole 4, two first springs 9 are fixedly installed between the top of the piston plate 5 and the top of the fixed rod 6, an L-shaped insulating and positioning rod 8 is fixedly installed at the top of the piston plate 5, the top of the L-shaped insulating and positioning rod 8 extends to the upper part of the fixed rod 6, the fixed rod 6 is slidably sleeved on the L-shaped insulating and positioning rod 8, a first copper sheet 13 is fixedly installed at the top of the L-shaped insulating and positioning rod 8, an insulating rod 7 positioned above the fixed rod 6 is fixedly installed on the inner wall at the right side of the rectangular hole 4, one side of the bottom of the insulating rod 7 is fixedly bonded with a second copper sheet 10, the second copper sheet 10 is, a storage battery 11 and an acoustic alarm 12 are fixedly installed on one side of the top of the fixed rod 6, the acoustic alarm 12 is electrically connected with the positive electrode of the storage battery 11, the acoustic alarm 12 is electrically connected with a first copper sheet 13, a second copper sheet 10 is electrically connected with the negative electrode of the storage battery 11, a cover plate is fixed on the top of the installation box 1 above the top through threads, the cover plate is matched with the rectangular hole 4, a first rectangular sleeve 14 is fixedly installed on the front side of the installation box 1 below the cover plate, an L-shaped clamping rod 16 is movably clamped in the first rectangular sleeve 14, a second rectangular sleeve 15 is fixedly installed on the front side of the installation box 1 above the cover plate, the top of the L-shaped clamping rod 16 penetrates through the second rectangular sleeve 15 and extends to the upper side of the second rectangular sleeve 15, the second rectangular sleeve 15 is slidably sleeved on the L-shaped clamping rod 16, a second spring 17 is fixedly installed between the top of the second rectangular sleeve 15 and the, second spring 17 movable sleeve establishes on L shape kelly 16, the utility model relates to a rationally, be convenient for take place in time early warning when slight leakage at the natural gas line junction and remind personnel, do not receive external factor to influence, can real-time detection, improve detection efficiency, reduce the potential safety hazard, can form interim protection in the junction, and can take off this device fast and install and use in other pipe connection departments, improve application scope, be favorable to the use.

In the utility model, the same hinge is fixedly arranged at the rear sides of two installation boxes 1, the two installation boxes 1 are rotatably arranged through the hinge, the top of a fixed rod 6 is provided with a perforation, the inner wall of the perforation is slidably connected with the outer side of an L-shaped insulating and positioning rod 8, a storage battery 11, an audible alarm 12, a first copper sheet 13 and a second copper sheet 10 sequentially form a loop, the top of a cover plate is provided with a first through hole, the first through hole is positioned right above the audible alarm 12, a rectangular sealing ring is fixedly sleeved on a piston plate 5, the outer side of the rectangular sealing ring is slidably connected with the inner wall of a rectangular hole 4, a limiting groove is arranged on the inner wall at the rear side of an L-shaped clamping rod 16, a limiting block is fixedly arranged on the inner wall at the front side of a second rectangular sleeve 15, the limiting block is slidably connected with the limiting groove, a sealing rubber ring is fixedly bonded at the bottom of the installation box 1, the utility model relates to a rationally, be convenient for take place in time early warning when slight leakage at the natural gas line junction and remind personnel, not influenced by external factor, can real-time detection, improve detection efficiency, reduce the potential safety hazard, can form interim protection in the junction, and can take off this device fast and install and use in other pipe connection departments, improve application scope, be favorable to the use.

The working principle is as follows: when the gas leakage alarm is used, the piston plate 5, the rectangular sealing ring, the two full-circle sealing rings and the two installation boxes 1 form a small sealing space, when leakage occurs at the joint between the two natural gas pipelines, leaked gas enters the sealing space, the gas in the sealing space gradually pushes the piston plate 5 along with the gas in the sealing space, the pushing force drives the piston plate 5 to move upwards and compress the two first springs 9, meanwhile, the piston plate 5 drives the L-shaped insulating positioning rod 8 to move upwards, the L-shaped insulating positioning rod 8 drives the first copper sheet 13 to move upwards until the first copper sheet 13 is in movable contact with the bottom of the second copper sheet 10, the storage battery 11, the sound alarm 12, the first copper sheet 13 and the second copper sheet 10 sequentially form a loop, at the moment, the sound alarm 12 rings to perform alarm operation, and the sound of the sound alarm 12 is transmitted to a worker through the first through hole, the purpose of warning and reminding personnel in time when slight leakage occurs at the joint of the two natural gas pipelines is achieved, the influence of external factors is avoided, real-time detection can be realized, the detection efficiency is improved, the potential safety hazard is reduced, and temporary protection can be formed at the joint when the device is installed at the joint of the two natural gas pipelines;

when two installation cases 1 need to be taken off from two natural gas pipeline and install when using in other natural gas pipeline junctions, upwards pulling L shape kelly 16, stretch second spring 17 when L shape kelly 16 upwards moves, L shape kelly 16 upwards shifts out from first rectangle cover 14 gradually simultaneously, and then has detached the fixed to two installation cases 1, upwards rotate the installation case 1 that is located the top immediately, installation case 1 that is located the top drives two semicircular seal 3 that are located the top upwards and separates with the natural gas pipeline, can pull out installation case 1 that is located the below this moment, and then can take off two installation cases 1 from two natural gas pipeline, and remove this device to other pipe junctions and detect.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The safety protection device for detecting the gas leakage of the petroleum and natural gas pipeline comprises two installation boxes (1) arranged at the joint of the two natural gas pipelines, and is characterized in that one side, close to each other, of each of the two installation boxes (1) is provided with an opening, one side, close to each other, of each of the two installation boxes (1) is rotatably installed, semicircular holes (2) are formed in the inner walls of the two sides of each of the installation boxes (1), one side, close to each other, of each of the two semicircular holes (2) which are opposite from each other up and down is provided with an opening to form a whole circular hole, a whole circular sealing ring is fixedly sleeved in each whole circular hole, the outer side of each natural gas pipeline is in close contact with the inner wall of the corresponding whole circular sealing ring, each whole circular sealing ring is composed of two semicircular sealing rings (3), the inner wall of each semicircular hole (2) is fixedly bonded with the outer side of the corresponding, and the joint of the two natural gas pipelines is positioned in a sealed space, a rectangular hole (4) is arranged on the inner wall of the top of the upper mounting box (1) in the two mounting boxes (1), a piston plate (5) is hermetically and slidably sleeved in the rectangular hole (4), a fixed rod (6) is fixedly arranged between the inner walls of the two sides of the rectangular hole (4), two first springs (9) are fixedly arranged between the top of the piston plate (5) and the top of the fixed rod (6), an L-shaped insulating positioning rod (8) is fixedly arranged at the top of the piston plate (5), the top of the L-shaped insulating positioning rod (8) extends to the upper part of the fixed rod (6), the fixed rod (6) is slidably sleeved on the L-shaped insulating positioning rod (8), a first copper sheet (13) is fixedly arranged at the top of the L-shaped insulating positioning rod (8), an insulating rod (7) positioned above the fixed rod (6) is fixedly arranged on the inner wall, a second copper sheet (10) is fixedly bonded on one side of the bottom of the insulating rod (7), the second copper sheet (10) is positioned right above the first copper sheet (13), the second copper sheet (10) is matched with the first copper sheet (13), a storage battery (11) and an audible alarm (12) are fixedly installed on one side of the top of the fixing rod (6), the audible alarm (12) is electrically connected with the positive electrode of the storage battery (11), the audible alarm (12) is electrically connected with the first copper sheet (13), the second copper sheet (10) is electrically connected with the negative electrode of the storage battery (11), a cover plate is fixedly screwed on the top of the mounting box (1) positioned above, the cover plate is matched with the rectangular hole (4), a first rectangular sleeve (14) is fixedly installed on the front side of the mounting box (1) positioned below, an L-shaped clamping rod (16) is movably clamped in the first rectangular sleeve (14), a second rectangular sleeve (15) is fixedly installed on the front side of the mounting box (1) positioned above, the top of the L-shaped clamping rod (16) penetrates through the second rectangular sleeve (15) and extends to the upper side of the second rectangular sleeve (15), the second rectangular sleeve (15) is sleeved on the L-shaped clamping rod (16) in a sliding mode, a second spring (17) is fixedly installed between the top of the second rectangular sleeve (15) and the inner wall of the top of the L-shaped clamping rod (16), and the second spring (17) is movably sleeved on the L-shaped clamping rod (16).

2. The safety device for detecting the gas leakage of the petroleum and natural gas pipeline according to claim 1, wherein the same hinge is fixedly installed at the rear sides of the two installation boxes (1), and the two installation boxes (1) are rotatably installed through the hinge.

3. The safety protection device for detecting the gas leakage of the petroleum and natural gas pipeline as claimed in claim 1, wherein the top of the fixing rod (6) is provided with a through hole, and the inner wall of the through hole is slidably connected with the outer side of the L-shaped insulating positioning rod (8).

4. The safety protection device for detecting the gas leakage of the oil and gas pipeline is characterized in that the storage battery (11), the sound alarm (12), the first copper sheet (13) and the second copper sheet (10) sequentially form a loop.

5. The safety protection device for detecting the gas leakage of the petroleum and natural gas pipeline according to claim 1, wherein a first through hole is formed in the top of the cover plate, and the first through hole is located right above the sound alarm (12).

6. The safety device for detecting the gas leakage of the petroleum and natural gas pipeline as claimed in claim 1, wherein the piston plate (5) is fixedly sleeved with a rectangular sealing ring, and the outer side of the rectangular sealing ring is slidably connected with the inner wall of the rectangular hole (4).

7. The safety device for detecting the gas leakage of the petroleum and natural gas pipeline as claimed in claim 1, wherein a limiting groove is formed in the inner wall of the rear side of the L-shaped clamping rod (16), a limiting block is fixedly mounted on the inner wall of the front side of the second rectangular sleeve (15), and the limiting block is slidably connected with the limiting groove.

8. The safety protection device for detecting the gas leakage of the petroleum and natural gas pipeline according to claim 1, wherein a sealing rubber ring is fixedly bonded to the bottom of the upper installation box (1), and the bottom of the sealing rubber ring is in close contact with the top of the lower installation box (1).