CN217082218U

CN217082218U - Gas leakage monitoring device for natural gas conveying pipeline

Info

Publication number: CN217082218U
Application number: CN202220388752.XU
Authority: CN
Inventors: 李帅; 张永亮; 潘迎通
Original assignee: Shandong Dongxu Thermal Technology Co ltd
Current assignee: Shandong Dongxu Thermal Technology Co ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-07-29
Anticipated expiration: 2032-02-25

Abstract

The utility model relates to a natural gas detection technical field especially relates to a natural gas transmission pipeline gas leakage monitoring device. Its technical scheme includes that atmospheric pressure detects box, connecting pipe and link ring, the both ends opening outside of connecting pipe all is fixed with the ring flange, the inside both ends of connecting pipe all are fixed with the butt joint cover, and the notch inboard of butt joint cover runs through and installs the siphunculus, department is fixed with the valve barrel in the middle of the inside of connecting pipe, and the valve barrel internal rotation installs the ball valve, the upside both ends of connecting pipe all run through and install the sleeve, and slidable mounting has the intubate in the sleeve, the lower extreme of intubate is fixed on the link ring, the display screen is installed in the embedding of the preceding terminal surface of atmospheric pressure detection box, the rear end of atmospheric pressure detection box is fixed with fixed cover, and the atmospheric pressure detection box cup joints in the connecting pipe outside with fixed cover, the inboard of atmospheric pressure detection box has seted up the butt joint. The utility model discloses possess regular automated inspection, it is little to ensure efficiency and size, the advantage of the assembly of being convenient for.

Description

Gas leakage monitoring device for natural gas conveying pipeline

Technical Field

The utility model relates to a natural gas detection technical field specifically is a natural gas conveying pipeline gas leakage monitoring device.

Background

Natural gas refers to all gases naturally occurring in nature, including gases formed by various natural processes in the air space, water space, and rock space. Natural gas is trapped in underground porous rock formations, including oil field gas, gas field gas, coal bed gas, mud volcanic gas, biogenic gas, and the like, and a small amount of natural gas is also released from the coal bed. It is a high-quality fuel and chemical raw material. The natural gas is mainly used as fuel, can be used for producing carbon black, chemicals and liquefied petroleum gas, and the propane and butane produced by the natural gas are important raw materials of modern industry. Natural gas is composed mainly of gaseous low molecular hydrocarbons mixed with non-hydrocarbon gases. Natural gas is a generic term for hydrocarbon-based gas mixtures present in subterranean rock reservoirs, has a specific gravity of about 0.65, is lighter than air, and has the characteristics of being colorless, odorless, and non-toxic.

In the process of arranging the natural gas pipeline, in order to ensure the safety of natural gas transportation, the pipeline needs to be subjected to gas leakage prevention detection. Most of the existing detection equipment adopts manual detection, and automatic monitoring and investigation cannot be regularly carried out, so that the workload is increased; and the existing monitoring equipment has a large size and cannot be effectively assembled and linked with a pipeline.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a natural gas conveying pipeline gas leakage monitoring device possesses regular automated inspection, ensures that efficiency and size are little, and the problem among the above-mentioned background is solved to the advantage of the assembly of being convenient for.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a natural gas transmission pipeline gas leakage monitoring devices, includes atmospheric pressure detection box, connecting pipe and link ring, the both ends opening outside of connecting pipe all is fixed with the ring flange, the inside both ends of connecting pipe all are fixed with the butt joint cover, and the notch inboard of butt joint cover runs through and installs the siphunculus, department is fixed with the valve barrel in the middle of the inside of connecting pipe, and the valve barrel internal rotation installs the ball valve, the upside both ends of connecting pipe all run through and install the sleeve, and slidable mounting has the intubate in the sleeve, the lower extreme of intubate is fixed on the link ring, the display screen is installed in the preceding terminal surface embedding of atmospheric pressure detection box, the rear end of atmospheric pressure detection box is fixed with fixed cover, and atmospheric pressure detection box cup joints in the connecting pipe outside with fixed cover, the butt joint has been seted up to the inboard of atmospheric pressure detection box.

Preferably, a sealing gasket is fixed on the inner side of the notch of the butt joint sleeve, the sealing gasket is fixedly sleeved on the outer side of the through pipe, and the rear end of the through pipe corresponds to the ball valve. The sealing performance of the joint of the natural gas pipe and the butt joint sleeve is improved through the sealing gasket.

Preferably, springs are fixed at the upper ends of the two sides of the linkage ring, the upper ends of the springs are fixed on the inner wall of the connecting pipe, and the linkage ring is located between the two butting sleeves in the connecting pipe. The reset of the linkage ring is realized through the spring, so that the height of the cannula is convenient to adjust.

Preferably, the sleeve is internally provided with a sealing sleeve, the sealing sleeve is made of rubber, the insertion tube is attached to the sealing sleeve, and the upper end of the insertion tube is inserted into the butt joint. The sealing performance in the process of inserting the pipe is realized through the sleeve sealing sleeve, and natural gas leakage is avoided.

Preferably, the air pressure detection box and the fixed cover are both in arc-shaped design, the air pressure detection box and the fixed cover are respectively clamped on two sides of the connecting pipe, and the joint of the air pressure detection box and the fixed cover is fixed through screws. The connecting sleeve of the air pressure detection box and the fixing sleeve is connected to the outer side of the connecting pipe, so that assembly is realized, the operation difficulty is low, and the occupied space is small.

Compared with the prior art, the beneficial effects of the utility model are as follows: during installation, two sections of natural gas pipes are respectively inserted at two ends of a connecting pipe to realize butt joint, the natural gas pipe is attached to a sealing gasket at the inner side of a butt joint sleeve, a flange plate at the outer side of the natural gas pipe is fixedly connected with a flange plate of the butt joint sleeve through bolts, two air pressure detection boxes are respectively clamped at two ends at the outer side of the connecting pipe, the top end of an insertion pipe is extruded to enable the insertion pipe to descend in a sleeve in the clamping process of the air pressure detection boxes, a linkage ring drives a spring to stretch, the insertion pipe is connected with the butt joint port through spring resetting after the top end of the insertion pipe is butted with the butt joint port, a fixed sleeve is clamped at the outer side of the connecting pipe at the rear side of the air pressure detection boxes, a control unit is started to enable a ball valve in a valve sleeve to be closed when detection is carried out, the natural gas pipe which is connected in sections is sealed, natural gas enters the connecting pipe through a through pipe, and then enters the air pressure detection boxes through the insertion pipe, carry out the atmospheric pressure monitoring through the inside atmospheric pressure detection sensor of box body, when taking place the slow decline phenomenon of atmospheric pressure, then this section natural gas pipe exists the gas leakage phenomenon, carries out atmospheric pressure through the display screen and shows, and this device detects through periodic sealing, ensures that the natural gas uses the security of transportation, and the size is little simultaneously, and the mode of portable assembly reduces the operation degree of difficulty.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

fig. 2 is an enlarged schematic view of fig. 1 according to the present invention;

FIG. 3 is a schematic view of the appearance structure of the present invention;

fig. 4 is a schematic side view of the present invention.

In the figure: 1. a flange plate; 2. an air pressure detection box; 3. a connecting pipe; 4. a valve housing; 5. a ball valve; 6. pipe passing; 7. butting sleeves; 8. a gasket; 9. a spring; 10. a link ring; 11. inserting a tube; 12. a sleeve; 13. a butt joint port; 14. a display screen; 15. a screw; 16. and (4) fixing sleeves.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example one

Referring to fig. 1 to 4, the present invention provides an embodiment: a gas leakage monitoring device for a natural gas conveying pipeline comprises a connecting pipe 3 and a linkage ring 10, wherein flange plates 1 are fixed on the outer sides of openings at two ends of the connecting pipe 3, butt sleeves 7 are fixed at two inner ends of the connecting pipe 3, a through pipe 6 is installed on the inner side of a notch of each butt sleeve 7 in a penetrating manner, a valve sleeve 4 is fixed in the middle of the inner portion of the connecting pipe 3, a ball valve 5 is rotatably installed in the valve sleeve 4, sleeves 12 are installed at two upper ends of the upper side of the connecting pipe 3 in a penetrating manner, insertion pipes 11 are installed in the sleeves 12 in a sliding manner, the lower ends of the insertion pipes 11 are fixed on the linkage ring 10, sealing gaskets 8 are fixed on the inner sides of the notches of the butt sleeves 7, the sealing gaskets 8 are fixedly sleeved on the outer sides of the through pipes 6, the rear ends of the through pipes 6 correspond to the ball valves 5, the sealing performance of the joints of the natural gas pipe and the butt sleeves 7 when the natural gas pipe is butted is improved through the sealing gaskets 8, springs 9 are fixed at the upper ends of two sides of the linkage ring 10, and the upper ends of the springs 9 are fixed on the inner wall of the connecting pipe 3, the linkage ring 10 is positioned between the two butting sleeves 7 in the connecting pipe 3, and the resetting of the linkage ring 10 is realized through the spring 9, so that the height of the insertion pipe 11 is convenient to adjust.

Example two

Referring to fig. 1 to 4, the present invention provides an embodiment: a gas leakage monitoring device for a natural gas transmission pipeline comprises a gas pressure detection box 2, a display screen 14 is embedded and installed on the front end face of the gas pressure detection box 2, a sealing sleeve is arranged inside a sleeve 12 and is made of rubber, an insertion pipe 11 is attached to the sealing sleeve, the upper end of the insertion pipe 11 is inserted into a butt joint port 13, the sealing sleeve of the sleeve 12 is used for realizing the sealing performance of the insertion pipe 11 in the moving process, the natural gas leakage is avoided, a fixing sleeve 16 is fixed at the rear end of the gas pressure detection box 2, the gas pressure detection box 2 and the fixing sleeve 16 are sleeved outside a connecting pipe 3, the butt joint port 13 is arranged on the inner side of the gas pressure detection box 2, the gas pressure detection box 2 and the fixing sleeve 16 are both in arc design, the gas pressure detection box 2 and the fixing sleeve 16 are respectively clamped on two sides of the connecting pipe 3, the joint of the gas pressure detection box 2 and the fixing sleeve 16 is fixed through a screw 15, the connecting sleeve of the gas pressure detection box 2 and the fixing sleeve 16 is connected outside the connecting pipe 3, the assembly is realized, the operation difficulty is low, and the occupied space is small.

The working principle is as follows: in the working of the utility model, during installation, two sections of natural gas pipes are respectively inserted at two ends of a connecting pipe 3 to realize butt joint, the natural gas pipe is jointed with a sealing gasket 8 at the inner side of a butt joint sleeve 7, a flange plate 1 at the outer side of the natural gas pipe is fixedly connected with a flange plate 1 of the butt joint sleeve 7 through bolts, two air pressure detection boxes 2 are respectively clamped at two ends at the outer side of the connecting pipe 3, after the top end of an insertion pipe 11 is extruded in the clamping process of the air pressure detection boxes 2 to descend in a sleeve 12, a spring 9 is driven to stretch through a linkage ring 10, when the top end of the insertion pipe 11 is butted with a butt joint 13, the insertion pipe 11 is reset through the spring 9 to realize the connection with the butt joint 13, a fixed sleeve 16 is clamped at the outer side of the connecting pipe 3 at the rear side of the air pressure detection boxes 2, the fixing is fixed through a screw 15, when detection is carried out, a control unit is started to close a valve sleeve 5 in a valve sleeve 4, at the moment, the natural gas pipe connected in sections is sealed, inside the natural gas got into connecting pipe 3 through siphunculus 6, in rethread intubate 11 messenger natural gas got into atmospheric pressure detection box 2, carried out the atmospheric pressure monitoring through the inside atmospheric pressure detection sensor of box body, when taking place the slow decline phenomenon of atmospheric pressure, then this section natural gas pipe has gas leakage phenomenon, carries out the atmospheric pressure through display screen 14 and shows. The working principle of the present invention is the above.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a natural gas transmission pipeline gas leakage monitoring devices, includes atmospheric pressure detection box (2), connecting pipe (3) and linkage ring (10), its characterized in that: the outer sides of openings at two ends of the connecting pipe (3) are respectively fixed with a flange plate (1), the two ends of the interior of the connecting pipe (3) are respectively fixed with a butt joint sleeve (7), a through pipe (6) is arranged at the inner side of the notch of the butt joint sleeve (7) in a penetrating way, a valve sleeve (4) is fixed at the middle part in the connecting pipe (3), a ball valve (5) is rotatably arranged in the valve sleeve (4), sleeves (12) are respectively arranged at the two ends of the upper side of the connecting pipe (3) in a penetrating way, an insertion tube (11) is arranged in the sleeve (12) in a sliding way, the lower end of the insertion tube (11) is fixed on the linkage ring (10), a display screen (14) is embedded in the front end face of the air pressure detection box (2), a fixed sleeve (16) is fixed at the rear end of the air pressure detection box (2), and the air pressure detection box (2) and the fixed sleeve (16) are sleeved outside the connecting pipe (3), and the inner side of the air pressure detection box (2) is provided with a butt joint port (13).

2. The natural gas transmission pipeline gas leakage monitoring device according to claim 1, wherein: a sealing gasket (8) is fixed on the inner side of the notch of the butt joint sleeve (7), the sealing gasket (8) is fixedly sleeved on the outer side of the through pipe (6), and the rear end of the through pipe (6) corresponds to the ball valve (5).

3. The natural gas transmission pipeline gas leakage monitoring device according to claim 1, wherein: the upper ends of the two sides of the linkage ring (10) are both fixed with springs (9), the upper ends of the springs (9) are fixed on the inner wall of the connecting pipe (3), and the linkage ring (10) is located between the two butt-joint sleeves (7) inside the connecting pipe (3).

4. The natural gas transmission pipeline gas leakage monitoring device according to claim 1, wherein: the utility model discloses a joint, including sleeve (12), intubate (11), sleeve (12) inside is equipped with the seal cover, and the seal cover comprises the rubber material, intubate (11) and seal cover laminate mutually, the upper end of intubate (11) is pegged graft in butt joint mouth (13).

5. The natural gas transmission pipeline gas leakage monitoring device according to claim 1, wherein: atmospheric pressure detects box (2) and fixed cover (16) and all is the arc design, and atmospheric pressure detects box (2) and fixed cover (16) joint respectively in the both sides of connecting pipe (3), the junction of atmospheric pressure detection box (2) and fixed cover (16) is fixed through screw (15).