CN220435667U - Natural gas anti-volatilization sealing joint - Google Patents
Natural gas anti-volatilization sealing joint Download PDFInfo
- Publication number
- CN220435667U CN220435667U CN202321686549.1U CN202321686549U CN220435667U CN 220435667 U CN220435667 U CN 220435667U CN 202321686549 U CN202321686549 U CN 202321686549U CN 220435667 U CN220435667 U CN 220435667U
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- sealing
- ring
- natural gas
- pipe
- seted
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 238000007789 sealing Methods 0.000 title claims abstract description 51
- 239000003345 natural gas Substances 0.000 title claims abstract description 35
- 238000003825 pressing Methods 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 abstract description 4
- 238000007142 ring opening reaction Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 206010023230 Joint stiffness Diseases 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000035 biogenic effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Joints Allowing Movement (AREA)
Abstract
The utility model discloses a natural gas volatilization-proof sealing joint, which relates to the technical field of natural gas pipelines and comprises a sealing pipe body, a connecting device and a pressing device. According to the utility model, the pressing device is arranged, the hexagon nut is screwed to enable the two extension plates to be close to each other, the ring opening of the pressing ring is further reduced, then the inner side wall of the sealing tube body is pressed against the spring, and the sealing ring is tightly attached to the pipe opening and the outer wall of the air inlet tube and the air outlet tube, so that the tightness of the sealing interface is ensured, and the purpose of preventing the volatilization of natural gas is achieved. Through be provided with the external screw thread on intake pipe and outlet duct to can twist intake pipe and outlet duct and make it cooperate with the inside second fixed block surface internal thread of seal box, then aim at first fixed block with the screw hole on swivel ring surface, can twist first connecting bolt and make it be connected with screw hole and screw thread recess cooperation, thereby reach the simple purpose of installation step.
Description
Technical Field
The utility model relates to the technical field of natural gas pipelines, in particular to a natural gas volatilization-preventing sealing joint.
Background
Natural gas refers to all gases naturally occurring in nature, including gases formed by various natural processes in the atmosphere, water and rock circles (including oilfield gas, gas field gas, mudstone gas, coal bed gas, and biogenic gases, etc.). The definition of "natural gas" has been used for a long time in a narrow definition from the viewpoint of energy, and refers to a mixture of hydrocarbon and non-hydrocarbon gases that are naturally deposited in a formation. In petrogeology, oilfield gas and gas field gas are commonly referred to. The composition is based on hydrocarbons and contains non-hydrocarbon gases. Natural gas pipelines refer to pipelines that transport natural gas (including associated gas from oilfield production) from a production site or process plant to a municipal gas distribution center or industrial enterprise user, also known as gas pipelines. Natural gas is conveyed by utilizing a natural gas pipeline, and the natural gas is conveyed on land in a large quantity. The natural gas pipeline accounts for about half of the total length of the world pipeline.
The natural gas pipe sealing joint disclosed in the Chinese patent application publication No. CN 184008846U comprises a main joint and an auxiliary joint, and the natural gas pipe sealing joint has the advantages that the piston mechanism is driven by the driving mechanism to work so as to realize the functions of exhausting and storing gas, the safety performance is high, and the harm is reduced, but the natural gas is volatilized due to the fact that the natural gas is not sealed tightly in the long-term use process, so that the danger is caused, the steps are complicated in the installation process, and the natural gas is not sealed tightly in the long-term use process, so that the defects of volatilization of the natural gas and the complicated installation steps are caused.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a natural gas anti-volatilization sealing joint, which solves the problems in the background art.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: including sealed tube body, connecting device and compression fittings, the one end of sealed tube body has the intake pipe through connecting device swing joint, the other end of sealed tube body has the outlet duct through connecting device swing joint, the inside fixedly connected with sealing washer of sealed tube body, the compression collar has been cup jointed to the lateral surface of sealed tube body, the both ends vertical extension of compression collar has the extension board, the through-hole has been seted up on the surface of extension board, the inside second connecting bolt that runs through of through-hole, threaded connection has hex nut on the screw rod of second connecting bolt, connecting device includes first connecting bolt, swivelling ring, first retainer plate, the both ends of sealed tube body and the back fixed connection of first retainer plate, the internal thread has been seted up to the internal diameter of swivelling ring and first retainer plate, the external screw thread has been seted up to the part external end face of intake pipe and outlet duct, threaded connection is passed through the internal diameter of screw thread and intake pipe, threaded hole has been seted up on the surface of extension board, threaded groove has been seted up on the front of first retainer plate, threaded connection screw thread groove and screw hole, threaded connection has the other end of the expansion joint has the expansion joint of spring, the other end of sealed tube has the other end.
Optionally, the pressing device comprises a pressing ring, an epitaxial plate, a through hole, a second connecting bolt and a hexagonal nut.
Optionally, the two connecting devices are symmetrically distributed at two ends of the sealing tube body, and the two connecting devices are respectively and fixedly connected with the air inlet tube and the air outlet tube.
Optionally, the diameters of the threaded holes and the threaded grooves are equal and correspond to each other one by one.
Optionally, the internal diameter of the second fixing ring is provided with an internal thread, and the internal thread is in threaded connection with external threads of the air inlet pipe and the air outlet pipe.
Optionally, the sealing rings are three in number, two are distributed at two ends of the inner part of the sealing tube body, and the other sealing ring is distributed at the center of the inner part of the sealing tube body.
The utility model provides a natural gas anti-volatilization sealing joint, which has the following beneficial effects:
this natural gas prevents volatilizing sealing joint through setting up compression fittings, can twist and move hexagon nut and make two extension boards be close to each other, and then makes the circle mouth of pressfitting circle narrow, then makes the inside wall extrusion spring of sealed body, and then makes the inside extrusion second retainer plate of spring extrusion expansion ring to make the second retainer plate extrusion sealing washer make it laminate with mouth of pipe and the outer wall of intake pipe and outlet duct, thereby guaranteed sealing joint's tightness, thereby reached natural gas and prevented volatilizing purpose.
This natural gas prevents volatilizing sealing joint is through being provided with the external screw thread on intake pipe and outlet duct to can twist intake pipe and outlet duct and make it cooperate with the inside second fixed block surface internal screw thread of sealed box, until the top of intake pipe and outlet duct and the inside middle sealing washer contact of sealed tube, thereby accomplish preliminary fixed, then aim at first fixed block with the screw hole on rotatory circle surface, can twist first connecting bolt and make it be connected with screw hole and screw thread recess cooperation, and then make intake pipe and outlet duct firmly connect on the sealed tube, this process operation is simple and direct, and the step is simple, thereby has reached the simple purpose of installation step.
Drawings
FIG. 1 is a schematic perspective view of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the structure of the present utility model;
FIG. 3 is an enlarged schematic view of the present utility model at structure A;
FIG. 4 is an enlarged schematic view of the structure B of the present utility model;
FIG. 5 is a top plan view of the structure of the present utility model;
fig. 6 is a schematic diagram of a pressing device with a structure according to the present utility model.
In the figure: 1. sealing the pipe body; 2. a connecting device; 3. a pressing device; 4. an air inlet pipe; 5. an air outlet pipe; 6. a first connecting bolt; 7. a rotating ring; 8. a first fixing ring; 9. a through hole; 10. a second connecting bolt; 11. a hexagonal nut; 12. a seal ring; 13. a spring; 14. an expansion ring; 15. a second fixing ring; 16. pressing the ring; 17. an epitaxial plate; 18. a threaded hole; 19. a thread groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
In embodiment 1, referring to fig. 1 to 6, the present utility model provides a technical solution: the utility model provides a natural gas prevents volatilizing sealing, includes sealed body 1, connecting device 2 and compression fittings 3, and connecting device 2 swing joint is passed through to sealed body 1's one end has intake pipe 4, and connecting device 2 swing joint is passed through to sealed body 1's the other end has outlet duct 5, sealed body 1's inside fixedly connected with sealing washer 12, sealing washer 12 is total three, and two distributes at sealed body 1's inside both ends, and another distributes at sealed body 1's inside center, and compression rings 16 have been cup jointed to sealed body 1's lateral surface, and compression rings 16's both ends vertical extension has epitaxial plate 17, and through-hole 9 has been seted up on epitaxial plate 17's surface, and through-hole 9 inside has run through second connecting bolt 10, threaded connection has hexagonal nut 11 on the screw rod of second connecting bolt 10, and compression fittings 3 includes compression rings 16, epitaxial plate 17, through-hole 9, second connecting bolt 10 and hexagonal nut 11.
When in use, the air inlet pipe 4 and the air outlet pipe 5 are firstly installed and fixed with the sealed pipe body 1, then the air inlet pipe and the air outlet pipe are subjected to volatilization prevention sealing by the pressing device 3, the hexagonal nut 11 is screwed to enable the two epitaxial plates 17 to be close to each other, the ring opening of the pressing ring 16 is further reduced, then the inner side wall of the sealed pipe body 1 is pressed against the spring 13, and then the spring 13 extrudes the expansion ring to inwards extrude the second fixing ring 15, so that the second fixing ring 15 extrudes the sealing ring 12 to tightly attach with the pipe orifice and the outer wall of the air inlet pipe 4 and the air outlet pipe 5, thereby ensuring the tightness of the sealing interface and further achieving the purpose of preventing the volatilization of the natural gas.
In embodiment 2, referring to fig. 1 to 6, the present utility model provides a technical solution: the utility model provides a natural gas prevents volatilizing sealing joint, including sealed body 1, connecting device 2 and compression fittings 3, connecting device 2 includes first connecting bolt 6, rotatory circle 7, first retainer plate 8, connecting device 2 is total two and symmetric distribution is at sealed body 1's both ends, sealed body 1's both ends and the back fixed connection of first retainer plate 8, the internal thread has been seted up to rotatory circle 7 and the internal diameter of first retainer plate 8, the external screw thread has been seted up to the outer terminal surface of intake pipe 4 and outlet duct 5, the external diameter threaded connection of intake pipe 4 and outlet duct 5 is passed through to rotatory circle 7's internal diameter, threaded hole 18 has been seted up on rotatory circle 7's surface, threaded groove 19 has been seted up on first retainer plate 8's front, threaded hole 18 and threaded groove 19 diameter equal and one-to-one, the screw thread of first connecting bolt 6 and threaded hole 18, threaded groove 19 threaded connection, sealed body 1's inside wall fixedly connected with spring 13, the other end fixedly connected with expansion ring 14 of spring 13, the other end fixedly connected with second retainer plate 15 of expansion ring 14, the internal diameter of second retainer plate 15 has been seted up internal thread 4 and external screw thread of internal thread and intake pipe 5.
When the sealing box is used, the air inlet pipe 4 and the air outlet pipe 5 are screwed to be matched with the internal threads on the surface of the second internal fixed block 15 of the sealing box body 1 until the tops of the air inlet pipe 4 and the air outlet pipe 5 are contacted and attached with the middle sealing ring 12 inside the sealing box body 1, so that preliminary fixing is finished, then the threaded holes 18 on the surface of the rotating ring 7 are aligned with the first fixed block 8, the first connecting bolts 6 can be screwed to be matched and connected with the threaded holes 18 and the threaded grooves 19, and the air inlet pipe 4 and the air outlet pipe 5 are firmly connected to the sealing box body 1, so that the process is simple to operate, the steps are simple, and the purpose of simple installation steps is achieved.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides a natural gas prevents volatilizing sealed joint, includes sealed body (1), connecting device (2) and compression fittings (3), its characterized in that: one end of the sealing tube body (1) is movably connected with an air inlet tube (4) through a connecting device (2), the other end of the sealing tube body (1) is movably connected with an air outlet tube (5) through the connecting device (2), and a sealing ring (12) is fixedly connected inside the sealing tube body (1);
the outer side surface of the sealing pipe body (1) is sleeved with a pressing ring (16), two ends of the pressing ring (16) vertically extend to form an extension plate (17), a through hole (9) is formed in the surface of the extension plate (17), a second connecting bolt (10) penetrates through the through hole (9), and a hexagonal nut (11) is connected to a screw rod of the second connecting bolt (10) in a threaded mode;
connecting device (2) are including first connecting bolt (6), swivelling ring (7), first retainer plate (8), the back fixed connection of seal tube body (1) both ends and first retainer plate (8), the internal thread has been seted up to the internal diameter of swivelling ring (7) and first retainer plate (8), the external screw thread has been seted up to the part external terminal surface of intake pipe (4) and outlet duct (5), the external screw thread has been seted up to the internal diameter of swivelling ring (7) through screw thread and the external diameter threaded connection of intake pipe (4) and outlet duct (5), screw hole (18) have been seted up on the surface of swivelling ring (7), threaded groove (19) have been seted up on the front of first retainer plate (8), the screw thread of first connecting bolt (6) and screw hole (18), threaded groove (19) threaded connection, the inside wall fixedly connected with spring (13) of seal tube body (1), the other end fixedly connected with expansion ring (14) of spring (13), the other end fixedly connected with second retainer plate (15) of expansion ring (14).
2. The natural gas volatilization-proof sealing joint as set forth in claim 1, wherein: the pressing device (3) comprises a pressing ring (16), an epitaxial plate (17), a through hole (9), a second connecting bolt (10) and a hexagonal nut (11).
3. The natural gas volatilization-proof sealing joint as set forth in claim 1, wherein: the connecting devices (2) are two in number and symmetrically distributed at two ends of the sealing pipe body (1).
4. The natural gas volatilization-proof sealing joint as set forth in claim 1, wherein: the diameters of the threaded holes (18) and the threaded grooves (19) are equal and correspond to each other one by one.
5. The natural gas volatilization-proof sealing joint as set forth in claim 1, wherein: the inner diameter of the second fixing ring (15) is provided with an inner thread, and the inner thread is in threaded connection with the outer threads of the air inlet pipe (4) and the air outlet pipe (5).
6. The natural gas volatilization-proof sealing joint as set forth in claim 1, wherein: the sealing rings (12) are three in number, two are distributed at two ends of the inside of the sealing pipe body (1), and the other sealing ring is distributed at the center of the inside of the sealing pipe body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321686549.1U CN220435667U (en) | 2023-06-30 | 2023-06-30 | Natural gas anti-volatilization sealing joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321686549.1U CN220435667U (en) | 2023-06-30 | 2023-06-30 | Natural gas anti-volatilization sealing joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220435667U true CN220435667U (en) | 2024-02-02 |
Family
ID=89700582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321686549.1U Active CN220435667U (en) | 2023-06-30 | 2023-06-30 | Natural gas anti-volatilization sealing joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220435667U (en) |
-
2023
- 2023-06-30 CN CN202321686549.1U patent/CN220435667U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |