CN211231948U - Natural gas line sealing connection structure - Google Patents
Natural gas line sealing connection structure Download PDFInfo
- Publication number
- CN211231948U CN211231948U CN201921379197.9U CN201921379197U CN211231948U CN 211231948 U CN211231948 U CN 211231948U CN 201921379197 U CN201921379197 U CN 201921379197U CN 211231948 U CN211231948 U CN 211231948U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- sealing
- natural gas
- close
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 238000007789 sealing Methods 0.000 title claims abstract description 54
- 239000003345 natural gas Substances 0.000 title claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims description 9
- 239000007787 solid Substances 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model discloses a natural gas line sealing connection structure, including first pipeline and second pipeline, all be provided with the thread groove on the surface of the adjacent one side of first pipeline and second pipeline, threaded connection has solid fixed ring on the thread groove for first pipeline, gu the thread groove threaded connection on fixed ring's the other end and the second pipeline, the side that first pipeline is close to second pipeline one end is provided with the go-between, the one end that the go-between is close to the second pipeline has the gear groove, be provided with go-between and gear groove assorted draw-in groove on the side of the adjacent one end of second pipeline and first pipeline, the upper end that first pipeline is close to second pipeline one side is provided with first dead lever. The utility model discloses simple structure, reasonable in design can prevent effectively when later stage pipeline detection position that the inside natural gas of pipeline from leaking in a large number, makes things convenient for staff's operation, connects between the pipeline simultaneously more simply convenient, and the gas tightness is better.
Description
Technical Field
The utility model relates to a natural gas transmission equipment technical field specifically is a natural gas line sealing connection structure.
Background
The natural gas is mainly used as fuel, can be used for producing carbon black, chemicals and liquefied petroleum gas, propane and butane produced by the natural gas are important raw materials in modern industry, the natural gas is mainly formed by mixing gaseous low molecular hydrocarbon and non-hydrocarbon gas and is the most widely used material in China at present, the natural gas is mainly conveyed through pipelines, existing natural gas conveying pipes are all metal pipes with simple structures, although valves can be closed to prevent the circulation of the fuel gas when detection and maintenance are carried out at the later stage, the natural gas in the pipelines still leaks in a large amount, and meanwhile, the natural gas pipelines are connected through flanges and are poor in air tightness.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a natural gas line sealing connection structure to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a natural gas pipeline sealing connection structure comprises a first pipeline and a second pipeline, wherein thread grooves are formed in the outer surfaces of the adjacent sides of the first pipeline and the second pipeline, a fixing ring is connected to the thread grooves of the first pipeline in a threaded manner, the other end of the fixing ring is connected with the thread grooves of the second pipeline in a threaded manner, a connecting ring is arranged on the side surface of one end, close to the second pipeline, of the first pipeline, a gear groove is formed in one end, close to the second pipeline, of the connecting ring, a clamping groove matched with the connecting ring and the gear groove is formed in the side surface of the adjacent end, close to the first pipeline, of the second pipeline, a first fixing rod is arranged at the upper end, close to the second pipeline, of the first pipeline, a first ejector rod is arranged at the lower end of the first fixing rod, a second fixing rod is arranged at the lower end, close to the first pipeline, of the second pipeline, the sealing mechanism is composed of a fixing frame, a spring, a sealing plate, a positioning column and a sealing ring, wherein the fixing frame is arranged inside the first pipeline and inside the second pipeline, the spring is arranged on the side face, close to one end of the first ejector rod, of the fixing frame, the other end of the spring is provided with the sealing plate, the positioning column is arranged at one end, close to the spring, of the sealing plate, the other end of the positioning column is movably arranged on the fixing frame, and the sealing ring is arranged at one end, far away from the spring, of the first pipeline and the second pipeline.
Preferably, the rubber layer is arranged on the side surface of one side adjacent to the first pipeline and the second pipeline.
Preferably, the both sides of solid fixed ring all are provided with the spacing ring, through setting up internal thread and thread groove threaded connection on the inside wall of spacing ring.
Preferably, the upper end face and the lower end face of the connecting ring are respectively provided with a plurality of rubber bumps, and grooves matched with the rubber bumps are formed in the clamping grooves in the second pipeline.
Preferably, the length of each of the first fixing rod and the second fixing rod is half of the diameter of each of the first pipeline and the second pipeline.
Preferably, a sealing gasket is arranged on the inner side wall of the sealing ring.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a be provided with first ejector pin at the lower extreme of first dead lever, the upper end of second dead lever is provided with the second ejector pin, first pipeline inside and second pipeline inside all are provided with sealing mechanism, sealing mechanism comprises mount, spring, closing plate, reference column and sealing ring, through the effect of first ejector pin, second ejector pin and sealing mechanism, can prevent a large amount of natural gas leakage in the pipeline after the disconnection between the pipeline, the staff's operation when being convenient for follow-up detection maintenance;
2. the utility model discloses a threaded connection has solid fixed ring on the thread groove of first pipeline and second pipeline, is provided with the go-between on the first pipeline, and the one end that the go-between is close to the second pipeline is provided with the gear groove, is provided with go-between and gear groove assorted draw-in groove on the second pipeline, through the effect in solid fixed ring, go-between and gear groove, can connect two pipelines fast, and the gas tightness is better simultaneously.
Drawings
Fig. 1 is an overall front view of a natural gas pipeline sealing connection structure of the present invention;
fig. 2 is a schematic view of the internal structures of the first pipeline and the second pipeline of the sealing connection structure for natural gas pipeline according to the present invention;
fig. 3 is a side view of the fixing frame of the sealing connection structure for natural gas pipeline of the present invention;
fig. 4 is an enlarged schematic view of a position a in the natural gas pipeline sealing connection structure diagram 1 of the present invention.
In the figure: 1. a first conduit; 101. a thread groove; 2. a second conduit; 21. a card slot; 3. a fixing ring; 4. a connecting ring; 41. a gear groove; 42. a rubber bump; 5. a first fixing lever; 6. a first ejector rod; 7. A second fixing bar; 8. a second ejector rod; 9. a sealing mechanism; 91. a fixed mount; 92. a spring; 93. a sealing plate; 94. a positioning column; 95. a seal ring; 10. a limit ring.
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.
Referring to fig. 1-4, the present invention provides a technical solution: a natural gas pipeline sealing connection structure comprises a first pipeline 1 and a second pipeline 2, wherein thread grooves 101 are formed in the outer surfaces of the adjacent sides of the first pipeline 1 and the second pipeline 2, a fixing ring 3 is connected to the thread grooves 101 of the first pipeline 1 in a threaded manner, the other end of the fixing ring 3 is in threaded connection with the thread grooves 101 of the second pipeline 2, a connecting ring 4 is welded on the side surface of one end, close to the second pipeline 2, of the first pipeline 1, a gear groove 41 is formed in one end, close to the second pipeline 2, of the connecting ring 4, a clamping groove 21 matched with the gear groove 41 is formed in the side surface of one end, close to the first pipeline 1, of the second pipeline 2, a first fixing rod 5 is welded at the upper end, close to one side of the second pipeline 2, a first ejector rod 6 is welded at the lower end of the first fixing rod 5, and a second fixing rod 7 is welded at the lower end, close to, second ejector pin 8 has been welded to the upper end of second dead lever 7, sealing mechanism 9 is all installed to first pipeline 1 inside and second pipeline 2 inside, sealing mechanism 9 is by mount 91, spring 92, closing plate 93, reference column 94 and sealing ring 95 are constituteed, mount 91 has all been welded to first pipeline 1 inside and second pipeline 2 inside, mount 91 installs spring 92 on being close to the side of first ejector pin 6 one end, spring 92's other end welding has closing plate 93, the one end welding that is close to spring 92 on the closing plate 93 has reference column 94, the other end of reference column 94 passes the round hole on mount 91, first pipeline 1 and second pipeline 2 all have welded sealing ring 95 in the one end that closing plate 93 kept away from spring 92.
The rubber layer is connected to the side face of the adjacent side of the first pipeline 1 and the second pipeline 2 in a soaking and melting mode, and the air tightness between the first pipeline 1 and the second pipeline 2 is further improved.
The both sides of solid fixed ring 3 all install spacing ring 10, through seting up internal thread and thread groove 101 threaded connection on the inside wall of spacing ring 10, are favorable to locking solid fixed ring 3.
The upper end face and the lower end face of the connecting ring 4 are connected with a plurality of rubber bumps 42 in a hot melting mode, grooves matched with the rubber bumps 42 are formed in the clamping grooves 21 on the second pipeline 2, and therefore the air tightness between the first pipeline 1 and the second pipeline 2 is further improved.
The length of first dead lever 5 and second dead lever 7 is the half of first pipeline 1 and second pipeline 2 diameter, is favorable to preventing first dead lever 5 and second dead lever 7 conflict each other.
The inner side wall of the sealing ring 95 is connected with a sealing gasket in a hot melting mode, and the sealing performance between the sealing ring and the sealing plate 93 is improved.
The working principle is as follows: when the device is used, the connecting ring 4 on the first pipeline 1 is firstly inserted into the clamping groove 21 on the second pipeline 2 to ensure that the first pipeline 1 is tightly connected with the second pipeline 2, then the fixing ring 3 passes through the first pipeline 1 to be screwed on the thread groove 101 to connect the first pipeline 1 with the second pipeline 2, and simultaneously the limiting ring 10 is screwed, when the first pipeline 1 is connected with the second pipeline 2, the first ejector rod 6 pushes the sealing plate 93 in the second pipeline 2 open, the second ejector rod 8 pushes the sealing plate 93 in the first pipeline 1 open, natural gas can be circulated, when in subsequent detection and maintenance, after the first pipeline 1 is separated from the second pipeline 2, under the action of the spring 92, the sealing plate 93 is clamped in the sealing ring 95 again to prevent a large amount of natural gas in the pipelines from leaking, the device can prevent a large amount of natural gas in the pipelines from leaking after the pipelines are disconnected, the operation of staff when being convenient for follow-up detection maintenance can be connected two pipelines fast, and the gas tightness is better simultaneously.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 (6)
1. A natural gas pipeline sealing connection structure comprises a first pipeline (1) and a second pipeline (2), and is characterized in that: the outer surface of one side, adjacent to the first pipeline (1) and the second pipeline (2), of the first pipeline (1) is provided with a thread groove (101), the thread groove (101) of the first pipeline (1) is connected with a fixing ring (3) in a threaded manner, the other end of the fixing ring (3) is in threaded connection with the thread groove (101) of the second pipeline (2), the side face, close to one end of the second pipeline (2), of the first pipeline (1) is provided with a connecting ring (4), one end, close to the second pipeline (2), of the connecting ring (4) is provided with a gear groove (41), the side face, adjacent to one end of the first pipeline (1), of the second pipeline (2) is provided with a clamping groove (21) formed by the connecting ring (4) and the gear groove (41) in a matched manner, the upper end, close to one side of the second pipeline (2), of the first pipeline (1) is provided with a first fixing rod (5), and the lower end of, a second fixing rod (7) is arranged at the lower end of one side, close to the first pipeline (1), of the second pipeline (2), a second ejector rod (8) is arranged at the upper end of the second fixing rod (7), sealing mechanisms (9) are arranged inside the first pipeline (1) and inside the second pipeline (2), each sealing mechanism (9) consists of a fixing frame (91), a spring (92), a sealing plate (93), a positioning column (94) and a sealing ring (95), fixing frames (91) are arranged inside the first pipeline (1) and inside the second pipeline (2), the side face, close to one end of the first ejector rod (6), of each fixing frame (91) is provided with the spring (92), the other end of each spring (92) is provided with the sealing plate (93), one end, close to the spring (92), of each sealing plate (93) is provided with the positioning column (94), and the other end of each positioning column (94) is movably arranged on each fixing frame (91), and sealing rings (95) are arranged at one ends, far away from the spring (92), of the sealing plates (93) of the first pipeline (1) and the second pipeline (2).
2. The natural gas pipeline sealing connection structure according to claim 1, wherein: and rubber layers are arranged on the side faces of the adjacent sides of the first pipeline (1) and the second pipeline (2).
3. The natural gas pipeline sealing connection structure according to claim 1, wherein: the two sides of the fixing ring (3) are provided with limit rings (10), and the inner side wall of each limit ring (10) is connected with the thread groove (101) in a threaded mode through an internal thread.
4. The natural gas pipeline sealing connection structure according to claim 1, wherein: the upper end face and the lower end face of the connecting ring (4) are respectively provided with a plurality of rubber bumps (42), and grooves matched with the rubber bumps (42) are formed in the clamping grooves (21) in the second pipeline (2).
5. The natural gas pipeline sealing connection structure according to claim 1, wherein: the length of the first fixing rod (5) and the length of the second fixing rod (7) are both half of the diameter of the first pipeline (1) and the diameter of the second pipeline (2).
6. The natural gas pipeline sealing connection structure according to claim 1, wherein: and a sealing gasket is arranged on the inner side wall of the sealing ring (95).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921379197.9U CN211231948U (en) | 2019-08-23 | 2019-08-23 | Natural gas line sealing connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921379197.9U CN211231948U (en) | 2019-08-23 | 2019-08-23 | Natural gas line sealing connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211231948U true CN211231948U (en) | 2020-08-11 |
Family
ID=71932010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921379197.9U Active CN211231948U (en) | 2019-08-23 | 2019-08-23 | Natural gas line sealing connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211231948U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097122A (en) * | 2020-08-17 | 2020-12-18 | 江西省天然气集团有限公司 | Natural gas line isolating device |
| WO2025241428A1 (en) * | 2024-05-23 | 2025-11-27 | 满洲里达赉湖热电有限公司 | Jacketed pipe connecting device |
-
2019
- 2019-08-23 CN CN201921379197.9U patent/CN211231948U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097122A (en) * | 2020-08-17 | 2020-12-18 | 江西省天然气集团有限公司 | Natural gas line isolating device |
| WO2025241428A1 (en) * | 2024-05-23 | 2025-11-27 | 满洲里达赉湖热电有限公司 | Jacketed pipe connecting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107166113B (en) | Adaptive underwater oval pipe jointer | |
| CN211231948U (en) | Natural gas line sealing connection structure | |
| CN110792866A (en) | Long-distance pipeline under-pressure plugging device and method | |
| CN110173603B (en) | Pipeline and leakage collection system with leak suppression and dredging function | |
| CN203929520U (en) | A kind of heat exchanger tube pass pressure testing device | |
| CN201103768Y (en) | Gas leak blocking clamper of gas pipe | |
| CN207584268U (en) | Pipe plugging system | |
| CN206072653U (en) | Leakage plugging clamp for oil and gas pipeline | |
| CN209839418U (en) | Flange for high-temperature steam pipeline | |
| CN203176739U (en) | Local pressurized leakage repairing plate for gas pipeline | |
| CN217130677U (en) | Stop valve for water heating equipment | |
| CN208237287U (en) | A kind of petroleum pipeline being easily installed | |
| CN210566757U (en) | Natural gas pipeline with anti-aging function | |
| CN105757372A (en) | Pipeline sealing device with air leakage detection function | |
| CN205244676U (en) | Dual -seal structure clamp formula flange | |
| CN211040119U (en) | Leakage repairing device for underwater pipeline | |
| CN222717685U (en) | High temperature resistant magnetic positioning connecting device of combination connection | |
| CN222047043U (en) | Special fixture for pressure pipeline under-pressure blocking | |
| CN211599847U (en) | Telescopic insulating joint device | |
| CN201739704U (en) | Pipeline weld defect leakage plugging fixture | |
| CN210739648U (en) | Natural gas line convenient to concatenation | |
| CN108223959B (en) | Under-pressure plugging device and plugging method for root valve | |
| CN223137243U (en) | Wear-resistant flanged joint device for composite pipe joint | |
| CN222011276U (en) | Underground pipeline plugging structure | |
| Wang et al. | Application of a New Type of Emergency Repair Release and Clamping Device in Pipeline Emergency Repair |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |