CN214947138U - Natural gas conveying flange assembly - Google Patents
Natural gas conveying flange assembly Download PDFInfo
- Publication number
- CN214947138U CN214947138U CN202120032325.3U CN202120032325U CN214947138U CN 214947138 U CN214947138 U CN 214947138U CN 202120032325 U CN202120032325 U CN 202120032325U CN 214947138 U CN214947138 U CN 214947138U
- Authority
- CN
- China
- Prior art keywords
- piston
- plug groove
- rod
- groove
- natural gas
- 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.)
- Expired - Fee Related
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000003345 natural gas Substances 0.000 title claims abstract description 25
- 239000012530 fluid Substances 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 4
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000006978 adaptation Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 8
- 238000007789 sealing Methods 0.000 description 4
- 239000011324 bead Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to a natural gas production technical field discloses natural gas transportation flange subassembly, including ring flange one and with the ring flange two of a ring flange looks adaptation, the axial interlude has the inserted bar on the disk body of ring flange one, and the axial is seted up on the disk body of ring flange two and is supplied the stopper groove one of inserted bar screw in, is provided with rather than matched with piston one in the stopper groove. One side of the piston facing the insert rod is in press fit with the corresponding end of the insert rod, and a fluid with a preset volume is accommodated between one side of the first piston away from the insert rod and the corresponding groove wall of the first plug groove. And a second plug groove communicated with the first plug groove is radially formed in the outer side wall of the second flange plate. The flange plates are matched and connected through the inserting rod, the first plug groove, the first piston, the second plug groove, the second piston, the first positioning rod, the second positioning rod and the like, so that the connection between the flange plates is more stable and reliable, and the potential safety hazard of natural gas leakage during conveying operation is avoided.
Description
Technical Field
The utility model relates to a natural gas production technical field especially relates to natural gas delivery flange subassembly.
Background
In natural gas transportation facilities, the flange is universally visible for use in pipe connections. The sealing surfaces of the existing flanges are all circular plane-shaped, the two flanges welded at the outlet of a pipeline are symmetrically arranged together, and the sealing surfaces of the two flanges are in contact with each other by using a sealing gasket as sealing filler. However, the connection between the flanges for conveying the natural gas is not stable enough, so that the natural gas leakage in the conveying operation is easily caused, and a large potential safety hazard exists.
SUMMERY OF THE UTILITY MODEL
Connect the technical problem firm inadequately between the ring flange for having solved the natural gas transportation among the prior art, the utility model provides a natural gas transportation flange subassembly.
The utility model discloses a following technical scheme realizes: the natural gas conveying flange assembly is used for connecting two adjacent gas conveying pipelines and comprises a first flange plate and a second flange plate matched with the first flange plate, an insert rod is axially inserted into the first flange plate, a first plug groove for screwing the insert rod in a thread manner is axially formed in the second flange plate, and a first piston matched with the first plug groove is arranged in the first plug groove; one side of the piston facing the inserted rod is in extrusion fit with the corresponding end part of the inserted rod, and a fluid with a preset volume is accommodated between one side of the first piston, which is far away from the inserted rod, and the corresponding groove wall of the first plug groove; a second plug groove communicated with the first plug groove is radially formed in the outer side wall of the second flange plate, a second piston matched with the second plug groove is arranged in the second plug groove, and a first positioning rod is fixed on one side, away from the first plug groove, of the second piston; the other end of the first positioning rod is provided with an insertion hole; and a sleeve is axially arranged on the outer side wall of the first flange plate, and a second positioning rod matched with the jack is threaded and inserted into the sleeve.
As a further improvement of the scheme, a spring is sleeved on the first positioning rod between the two side walls of the piston and the two notches of the plug groove.
As a further improvement of the scheme, a through hole is axially formed in the disc body of the first flange plate, and the insertion rod is inserted into the through hole and is in threaded fit connection with the through hole.
As a further improvement of the scheme, one end of the inserted rod inserted into the first plug groove is provided with a sliding ball, and the first piston is provided with a top groove which is in rotary contact with the sliding ball.
As a further improvement of the scheme, the second positioning rod is in threaded fit connection with the jack.
As a further improvement of the above, the fluid is hydraulic oil.
The utility model has the advantages that:
the utility model discloses a natural gas transportation flange subassembly, through the inserted bar between the ring flange, stopper groove one, piston one, stopper groove two, piston two, locating lever one and locating lever class second grade structure cooperate the connection, with inserted bar screw in ring flange one, stopper groove one, and extrude piston one through the smooth pearl, make stopper groove one, fluid in the stopper groove two receives extrusion back extrusion piston two, the jack that piston two drove locating lever one stretches out ring flange two, again with threaded connection between the locating lever two, in order to realize taut fixed between the ring flange, make the connection between the ring flange more firm reliable, avoid taking place the potential safety hazard of natural gas leakage when carrying the operation.
Drawings
Fig. 1 is a schematic structural view of a natural gas transportation flange assembly between adjacent gas transmission pipelines according to an embodiment of the present invention;
FIG. 2 is a cross-sectional schematic view of the natural gas delivery flange assembly of FIG. 1;
fig. 3 is an enlarged schematic view of a portion a in fig. 2.
Description of the main symbols:
1. a first flange plate; 2. a second flange plate; 3. a gas pipeline; 4. a through hole; 5. inserting a rod; 6. a first plug groove; 7. a first piston; 8. a fluid; 9. a second plug groove; 10. a second piston; 11. a first positioning rod; 12. a spring; 13. a sleeve; 14. a second positioning rod; 15. a sliding bead; 16. and (4) a top groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1 to 3, the natural gas transportation flange assembly is used to connect two adjacent gas transmission pipelines 3. The natural gas conveying flange assembly comprises a first flange plate 1 and a second flange plate 2 matched with the first flange plate 1. In this embodiment, the first flange 1, the second flange 2 and the gas pipeline 3 can be welded together.
The plug rod 5 is axially inserted into the body of the first flange plate 1, the plug groove 6 for screwing the plug rod 5 in is axially arranged on the body of the second flange plate 2, and internal threads (not marked) are distributed at the notch of the plug groove 6 and are in threaded connection with the plug rod 5 through the internal threads. And a piston I7 matched with the plug groove I6 is arranged in the plug groove I. The side of the piston I7 facing the plug rod 5 is in press fit with the corresponding end of the plug rod 5, and a predetermined volume of fluid 8 is contained between the side of the piston I7 away from the plug rod 5 and the corresponding groove wall of the plug groove I6. The predetermined volume of fluid 8 is defined in this embodiment as the volume of fluid 8 that fills the flow space formed between the side of piston one 7 remote from the plunger 5 and the walls of the plug groove one 6. Thus, the fluid 8 in the plug groove 6 can play a certain supporting role for the piston 7 in the plug groove 6 to realize the force transmission.
The fluid 8 in this embodiment is hydraulic oil, so that hydraulic transmission is achieved, while in other embodiments the fluid 8 may also be a gas having a predetermined volume, so that pneumatic transmission is achieved. The piston one 7 is pressed against the fluid 8 in the plug groove one 6 by screwing the plug rod 5 into the plug groove one 6 to press the piston one 7 to adjust the position of the piston one 7 in the plug groove one 6.
And a second plug groove 9 communicated with the first plug groove 6 is radially formed in the outer side wall of the second flange plate 2, a second piston 10 matched with the second plug groove is arranged in the second plug groove 9, and the fluid 8 in the first plug groove 5 can also flow into the second plug groove 9. And a positioning rod I11 is fixed on one side of the piston II 10 far away from the plug groove I6. The other end of the first positioning rod 11 is provided with a jack (not marked). The outer side wall of the flange plate I1 is axially provided with a sleeve 13, and a second positioning rod 14 matched with the jack is inserted in the sleeve 13 in a threaded manner.
A spring 12 is sleeved on the first positioning rod 11 positioned between the side wall of the second piston 10 and the notch of the second plug groove 9. Two ends of the spring 12 are respectively fixedly connected with the side wall of the second piston 10 and the corresponding side wall at the notch of the second plug groove 9. The second piston 10 is conveniently reset in the second plug groove 9 under the action of the elastic force of the spring 12.
A through hole 4 is axially formed in the disc body of the flange plate I1, and the inserted rod 5 is inserted in the through hole 4 and is in threaded fit connection with the through hole 4. The distance of the inserted rod 5 extending into the first plug groove 6 is adjusted by rotating the inserted rod 5 to enable the inserted rod to be in threaded fit with the through hole 4.
One end of the inserted rod 5 inserted into the first plug groove 6 is provided with a sliding ball 15, and the piston 7 is provided with a top groove 16 which is in rotary contact with the sliding ball 15. The rotating contact of the sliding ball 15 in the top groove 16 enables the plunger 5 to extrude the first piston 7 more stably.
The second positioning rod 14 is in threaded fit connection with the jack. Through the threaded connection between the second positioning rod 14 and the jack, the position of the second piston 10 in the second plug groove 9 can be directly kept constant, so that the connection between the first flange plate 1 and the second flange plate 2 is more stable and reliable indirectly.
The working principle of the utility model is that when two adjacent gas transmission pipelines 3 need to be connected, firstly, the inserted rod 5 is screwed into the through hole 4 of the flange plate 1, then the flange plate 1 is butted with the flange plate 2, the end part of the inserted rod 5 is screwed into the notch of the plug groove 6, the sliding ball 15 of the inserted rod 5 enters the top groove 16 of the piston 7 and extrudes the piston 7, the piston 7 extrudes the fluid in the plug groove 6, and the piston 10 in the plug groove 9 is extruded through the fluid transmission, the piston 10 drives the positioning rod 11 to move outwards and compress the spring 12, so that the jack of the positioning rod 11 penetrates out of the outer side of the flange plate 2, and then the positioning rod 14 is screwed to enable the mutual thread action between the positioning rod 14 and the sleeve 13, so that the end part of the positioning rod 14 is screwed into the jack of the positioning rod 14 to fix the position of the positioning rod 14, and tensioning and fixing the flange plate I1 and the flange plate II 2 so as to complete quick connection between two adjacent gas transmission pipelines 3.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The natural gas conveying flange assembly is used for connecting two adjacent gas conveying pipelines and is characterized by comprising a first flange plate and a second flange plate matched with the first flange plate, an inserting rod is axially inserted into a disc body of the first flange plate, a first plug groove for the inserting rod to be screwed in is axially formed in the disc body of the second flange plate, and a first piston matched with the first plug groove is arranged in the first plug groove; one side of the piston facing the inserted rod is in extrusion fit with the corresponding end part of the inserted rod, and a fluid with a preset volume is accommodated between one side of the first piston, which is far away from the inserted rod, and the corresponding groove wall of the first plug groove; a second plug groove communicated with the first plug groove is radially formed in the outer side wall of the second flange plate, a second piston matched with the second plug groove is arranged in the second plug groove, and a first positioning rod is fixed on one side, away from the first plug groove, of the second piston; the other end of the first positioning rod is provided with an insertion hole; and a sleeve is axially arranged on the outer side wall of the first flange plate, and a second positioning rod matched with the jack is threaded and inserted into the sleeve.
2. The natural gas delivery flange assembly of claim 1 wherein a spring is sleeved on the first locating rod between the two side walls of the piston and the two notches of the plug groove.
3. The natural gas conveying flange assembly as claimed in claim 1, wherein the first flange plate has a through hole axially formed therein, and the insertion rod is inserted into the through hole and is in threaded engagement with the through hole.
4. The natural gas delivery flange assembly as claimed in claim 1, wherein a sliding ball is disposed at an end of the insertion rod inserted into the first plug groove, and a top groove in rotational contact with the sliding ball is disposed on the first piston.
5. The natural gas delivery flange assembly of claim 1, wherein the second positioning rod is in threaded fit connection with the insertion hole.
6. The natural gas delivery flange assembly of claim 1, wherein the fluid is hydraulic oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120032325.3U CN214947138U (en) | 2021-01-07 | 2021-01-07 | Natural gas conveying flange assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120032325.3U CN214947138U (en) | 2021-01-07 | 2021-01-07 | Natural gas conveying flange assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214947138U true CN214947138U (en) | 2021-11-30 |
Family
ID=79121221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120032325.3U Expired - Fee Related CN214947138U (en) | 2021-01-07 | 2021-01-07 | Natural gas conveying flange assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214947138U (en) |
-
2021
- 2021-01-07 CN CN202120032325.3U patent/CN214947138U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211130 |