CN213361099U

CN213361099U - Valve for natural gas pipeline

Info

Publication number: CN213361099U
Application number: CN202021780429.4U
Authority: CN
Inventors: 吴连峰; 刘荣霞; 邱琳熙; 张啸; 周游; 胡斌
Original assignee: Jiangsu Boteway Fluid Technology Co Ltd
Current assignee: Jiangsu Boteway Fluid Technology Co Ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-06-04
Anticipated expiration: 2030-08-24

Abstract

The utility model discloses a valve for natural gas pipeline, including the runner, the lower extreme of runner is provided with the screw rod, the below of screw rod is provided with valve adjusting device, the outside that the screw rod is close to valve adjusting device is provided with the thread groove, one side of valve adjusting device is provided with the pull rod, the inside of pull rod is provided with the movable block, movable block one side is provided with the connecting rod, the side of pull rod is provided with the lug, the connecting rod passes the recess and connects the locking lever, the outside of locking lever is provided with the spout, the side of locking lever is provided with the spring, the below of valve adjusting device is provided with communicating pipe; this valve for natural gas line can reach the operation safety that the valve used through setting up pull rod, spring, locking lever for prevent gas pressure and lead to the screw rod pivoted condition in the pipeline, through setting up valve rod, case, disk seat, can reach the nimble operation that changes to the valve opening and shutting, be used for preventing the leakage of natural gas, with this stability that increases the state of opening and shutting.

Description

Valve for natural gas pipeline

Technical Field

The utility model relates to a natural gas technology field specifically is a valve for natural gas line.

Background

The natural gas refers to all natural gases in nature, including gases formed in various natural processes of an air space, a water spring and a rock pressing space, and mainly exists in weather, gas field gas, coal bed gas, mud volcanic gas and biogenic gas, and a small amount of the natural gas also exists in a coal bed. The natural gas mainly comprises alkane, wherein most of methane is contained, a small amount of ethane, propane and butane are used as high-quality dye and chemical raw materials in turn, and a natural gas pipeline is a pipeline for conveying natural gas (including associated gas produced by an oil field) from an exploitation place or a treatment plant to a city gas distribution center or an industrial enterprise user and is also called a gas transmission pipeline. Natural gas pipelines are used for conveying natural gas. Is the only way to transport natural gas in large quantities on land.

The existing natural gas pipeline uses the valve and does not lock the valve, and the problem of natural gas leakage can be caused for a long time due to the fact that the valve rotates under the flowing pressure of gas.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's weak point, provide a valve for natural gas line, solve the problem of mentioning in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a valve for a natural gas pipeline comprises a rotating wheel, wherein a screw rod is arranged at the lower end of the rotating wheel, a valve adjusting device is arranged below the screw rod, a screw groove is formed in the outer side, close to the valve adjusting device, of the screw rod, a pull rod is arranged on one side of the valve adjusting device, a movable block is arranged inside the pull rod, a connecting rod is arranged on one side of the movable block, a convex block is arranged on the side of the pull rod, the connecting rod penetrates through a groove to be connected with a locking rod, a sliding groove is formed in the outer portion of the locking rod, a spring is arranged on the side of the locking rod, a communicating pipe is arranged below the valve adjusting device, a first sealing gasket is arranged at a crack, close to the communicating pipe, of the screw rod, a flange component is arranged on one side of the communicating pipe, a bolt is arranged, the lower end of the screw rod penetrates through the first sealing gasket to be connected with the valve rod in the inner cavity, the valve seat is arranged outside the valve rod, the valve core is arranged on the annular surface of the valve rod, the second sealing gasket is arranged on the outer side of the valve core, the valve groove is formed in the inner side, close to the valve rod, of the second sealing gasket, and the bearing is arranged at the bottom end of the valve rod.

As the utility model discloses a preferred technical scheme, runner and screw rod fixed connection, valve adjusting device bottom and communicating pipe fixed connection, the internal diameter size of spiral groove and the external diameter size looks adaptation of screw rod, the spiral groove rotates with the screw rod to be connected.

As the utility model discloses an optimal technical scheme, the internal diameter size of pull rod and the external diameter size looks adaptation of movable block, the pull rod rotates with the movable block to be connected, one side and the connecting rod fixed connection of movable block, locking lever is the T form, one side and the locking lever fixed connection of connecting rod, locking lever and screw rod swing joint, the quantity of lug is two sets of, the lug equidistance is fixed in the side of pull rod, the width size of recess and the interval size looks adaptation of lug, recess and lug swing joint.

As the utility model discloses a preferred technical scheme, the interior width dimension of locking lever and the outer width dimension looks adaptation of spout, locking lever and spout sliding connection, the quantity of spring is two sets of, the locking lever passes through the inboard fixed connection of spring and spout.

As the utility model discloses a preferred technical scheme states the quantity of flange subassembly and is two sets of, flange subassembly one side and communicating pipe integral type structure, flange subassembly opposite side and natural gas line integral type structure, communicating pipe passes through bolt and natural gas line screwed connection.

As the utility model discloses a preferred technical scheme, first sealed fill up for the I-shaped, the through-hole has been seted up in the first sealed pad, the screw rod passes through-hole and valve rod fixed connection, the quantity of case is two sets of, and is oval-shaped, case and valve rod formula structure as an organic whole, the second is sealed to be sealed to bond with the outer anchor ring of case.

As the utility model discloses a preferred technical scheme, the disk seat is the U type form, disk seat and the inside vertical fixed connection of communicating pipe, the internal diameter size and the case external diameter size looks adaptation of valve spool, the valve spool cup joints with the case, bearing and the intraductal fixed connection of intercommunication, the internal diameter size and the valve rod external diameter size looks adaptation of bearing, the bearing rotates with the valve rod to be connected.

Compared with the prior art, the utility model provides a valve for natural gas line possesses following beneficial effect:

1. the valve for the natural gas pipeline is characterized in that a pull rod is rotatably connected with a movable block, one side of the movable block is fixedly connected with a connecting rod, one side of the connecting rod is fixedly connected with a locking rod, lugs are equidistantly fixed on the side of the pull rod, a groove is movably connected with the lugs, the locking rod is slidably connected with a spring, the locking rod is fixedly connected with the inner side of a chute through the spring, when the valve device is not used, the locking rod is always in a state of abutting against a screw rod, when the valve device is used, the pull rod can be pulled, the locking rod is driven to move left in the chute through the connecting rod, the locking rod can realize a pressing state on springs on two sides, then after the pull rod is pulled out for a certain distance, the lug arranged on the inner side of the pull rod can be abutted against one side of a valve adjusting device through rotating the pull rod, the use of the valve is convenient, then when the valve is not operated, the pull rod can, the spring is in a stress-free state to relax, one end of the locking rod can be tightly propped against the screw rod, the situation that the screw rod rotates due to gas pressure in a pipeline is prevented, and the safety and effectiveness of use of the valve can be achieved.

2. This valve for natural gas line, through setting up the valve rod, the case, the disk seat, when the circulation state is realized to natural gas in the needs pipeline, rotatable runner, carry out corotation through driving screw and spiral shell groove, the screw rod can drive the valve rod and carry out the upward movement, the case that is provided with on through the valve rod can separate with the valve slot in the disk seat, with this circulation that can carry out the natural gas, when natural gas is closed in the needs pipeline, but the reversal runner, drive valve rod reversal descending motion through driving screw, two sets of cases can be fully sealed with the valve slot on the disk seat, the sealed pad of second that is equipped with outside the case, can prevent the leakage of natural gas. Therefore, the tightness of the closed state is increased, the flexible operation of opening and closing and changing of the valve can be achieved, and the valve is convenient and practical.

Drawings

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

FIG. 2 is an internal view of the valve device of the present invention;

FIG. 3 is an internal view of the connector of the present invention;

fig. 4 is a drawing of the pull rod connection of the present invention.

In the figure: 1. a rotating wheel; 2. a screw; 3. a valve adjusting device; 4. a screw groove; 5. a pull rod; 6. A movable block; 7. a connecting rod; 8. a bump; 9. a groove; 10. a locking bar; 11. a chute; 12. A spring; 13. a communicating pipe; 14. a first gasket; 15. a flange assembly; 16. a bolt; 17. A natural gas pipeline; 18. an inner cavity; 19. a valve stem; 20. a valve core; 21. a second gasket; 22. A valve seat; 23. a valve spool; 24. and a bearing.

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, in this embodiment: a valve for a natural gas pipeline comprises a rotating wheel 1, a screw rod 2 is arranged at the lower end of the rotating wheel 1, a valve adjusting device 3 is arranged below the screw rod 2, a screw groove 4 is arranged on the outer side, close to the valve adjusting device 3, of the screw rod 2, a pull rod 5 is arranged on one side of the valve adjusting device 3, a movable block 6 is arranged inside the pull rod 5, a connecting rod 7 is arranged on one side of the movable block 6, a convex block 8 is arranged on the side of the pull rod 5, the connecting rod 7 penetrates through a groove 9 to be connected with a locking rod 10, a sliding groove 11 is arranged outside the locking rod 10, a spring 12 is arranged on the side of the locking rod 10, a communicating pipe 13 is arranged below the valve adjusting device 3, a first sealing gasket 14 is arranged at a crack, close to the communicating pipe 13, a flange component 15 is arranged on one side of the communicating pipe 13, an inner cavity 18 is formed in the communicating pipe 13, the lower end of the screw rod 2 penetrates through the first sealing gasket 14 to the inner cavity 18 to be connected with a valve rod 19, a valve seat 22 is arranged outside the valve rod 19, a valve core 20 is arranged on the annular surface of the valve rod 19, a second sealing gasket 21 is arranged on the outer side of the valve core 20, a valve groove 23 is formed in the inner side, close to the valve rod 19, of the second sealing gasket 21, and a bearing 24 is arranged at the bottom end of.

In the embodiment, the rotating wheel 1 is fixedly connected with the screw rod 2 and used for rotating the screw rod 2, the bottom end of the valve adjusting device 3 is fixedly connected with the communicating pipe 13 and used for stabilizing the use convenience of the valve adjusting device 3, the inner diameter size of the screw groove 4 is matched with the outer diameter size of the screw rod 2, and the screw groove 4 is rotatably connected with the screw rod 2 and is convenient for the screw rod 2 to rotate forwards and backwards; the inner diameter of the pull rod 5 is matched with the outer diameter of the movable block 6, the pull rod 5 is rotatably connected with the movable block 6, the pull rod 5 can be conveniently rotated and can be used for a lug 8, one side of the movable block 6 is fixedly connected with the connecting rod 7, the connecting rod 7 can be conveniently pulled, the locking rod 10 is T-shaped, one side of the connecting rod 7 is fixedly connected with the locking rod 10, the locking rod 10 is movably connected with the screw rod 2 and is used for adjustably clamping the screw rod 2, the number of the lugs 8 is two, the lugs 8 are equidistantly fixed on the side of the pull rod 5 and are used for stabilizing the position of the lug 8, the width of the groove 9 is matched with the space size of the lug 8, the groove 9 is movably connected with the lug 8 and is used for placing the lug 8, the subsequent lug 8 is conveniently propped and fixed on the side face of the valve adjusting device 3, and the valve; the inner width dimension of the locking rod 10 is matched with the outer width dimension of the sliding groove 11, the locking rods 10 are connected with the sliding groove 11 in a sliding mode and used for enabling the locking rods 10 to move transversely, the number of the springs 12 is two, and the locking rods 10 are fixedly connected with the inner side of the sliding groove 11 through the springs 12 to provide elastic abutting capacity for the locking rods 10; the number of the flange assemblies 15 is two, one side of each flange assembly 15 is in an integrated structure with the corresponding communicating pipe 13, the other side of each flange assembly 15 is in an integrated structure with the corresponding natural gas pipeline 17, and the corresponding communicating pipe 13 is in screwed connection with the corresponding natural gas pipeline 17 through the corresponding bolt 16, so that convenience in installation and connection of the natural gas pipelines 17 is facilitated; the first sealing gasket 14 is of an I shape, the sealing performance between the communicating pipe 13 and the screw rod 2 is improved, a through hole is formed in the first sealing gasket 14, the screw rod 2 penetrates through the through hole to be fixedly connected with the valve rod 19, the sealing performance between the communicating pipe 13 and the screw rod 2 is improved, the valve cores 20 are two in number and are elliptical, the valve cores 20 and the valve rod 19 are of an integrated structure and used for the stability of the structure of the valve core 20, and the second sealing gasket 21 is bonded with the outer annular surface of the valve core 20 and used for improving the sealing performance of the valve core 20; valve seat 22 is the U type form, be convenient for the water conservancy diversion effect and the current-limiting effect of natural gas in communicating pipe 13, valve seat 22 and the inside vertical fixed connection of communicating pipe 13, a position for stabilizing valve seat 22, the internal diameter size and the case 20 external diameter size looks adaptation of valve groove 23, valve groove 23 cup joints with case 20, a state for case 20 carries out the open and shut, bearing 24 and communicating pipe 13 internal fixation are connected, a position for fixing bearing 24, the internal diameter size and the 19 external diameter size looks adaptation of valve rod of bearing 24, bearing 24 rotates with valve rod 19 to be connected, provide valve rod 19 rotation and supporting role.

The utility model discloses a theory of operation and use flow: firstly, a natural gas pipeline 17 is communicated with a communicating pipe 13 through a bolt 16 on a flange component 15, when the valve adjusting device 3 is not used, a locking rod 10 is always in a state of abutting against a screw rod 2 and is used for preventing the rotation condition of the screw rod 2 caused by the pushing pressure of natural gas fluid, then when the valve adjusting device 3 is used, a pull rod 5 can be pulled, the locking rod 10 is driven to move to the left in a chute 11 through a connecting rod 7, the locking rod 10 can realize a compression state on springs 12 at two sides, then after the pull rod 5 is pulled out for a certain distance, a lug 8 arranged on the inner side of the pull rod 5 can be propped and fixed on one side of the valve adjusting device 3 through rotating the pull rod 5, the rotating wheel 1 can be rotated when the natural gas in the communicating pipe 13 is required to realize a conduction state, the screw rod 2 and a screw groove 4 are driven to rotate forwardly, the screw rod 2 can drive a valve rod 19 to, the valve core 20 arranged on the valve rod 19 can be separated from the valve groove 23 in the valve seat 22, so that natural gas can be circulated, when the natural gas in the communicating pipe 13 needs to be closed, the rotating wheel 1 can be reversed, the valve rod 19 is driven to reversely rotate and move downwards through the driving screw rod 2, the two groups of valve cores 20 can be fully abutted against the valve groove 23 on the valve seat 22, and then the second sealing gasket 21 arranged on the outer annular surface of the valve core 20 can prevent the leakage of the natural gas, so that the tightness of the closed state is increased, the flexible operation of the open-close state of the valve can be achieved, and the valve is convenient and practical; finally, when the valve adjusting device 3 is not used, the rotatable pull rod 5 retracts the lug 8 into the groove 9, the spring 12 is in a non-stressed state to relax, one end of the locking rod 10 can be tightly pressed on the screw rod 2, the situation that the screw rod 2 rotates due to gas pressure in a pipeline is prevented, and therefore the use safety of the valve can be achieved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a valve for natural gas line which characterized in that: comprises a rotating wheel (1), a screw rod (2) is arranged at the lower end of the rotating wheel (1), a valve adjusting device (3) is arranged below the screw rod (2), a screw groove (4) is arranged at the outer side of the screw rod (2) close to the valve adjusting device (3), a pull rod (5) is arranged at one side of the valve adjusting device (3), a movable block (6) is arranged inside the pull rod (5), a connecting rod (7) is arranged at one side of the movable block (6), a convex block (8) is arranged at the side of the pull rod (5), the connecting rod (7) penetrates through a groove (9) to be connected with a tight locking rod (10), a sliding groove (11) is arranged outside the tight locking rod (10), a spring (12) is arranged at the side of the tight locking rod (10), a communicating pipe (13) is arranged below the valve adjusting device (3), a first sealing gasket (14) is arranged at the seam of the screw rod (2) close, one side of communicating pipe (13) is provided with flange subassembly (15), the side of flange subassembly (15) is provided with bolt (16), one side of flange subassembly (15) is provided with natural gas line (17), communicating pipe (13) inside is provided with inner chamber (18), the lower extreme of screw rod (2) passes first sealed pad (14) to inner chamber (18) and connects valve rod (19), the outside of valve rod (19) is provided with disk seat (22), the anchor ring of valve rod (19) is provided with case (20), the outside of case (20) is provided with the sealed pad (21) of second, the inboard that the sealed pad (21) of second is close to valve rod (19) is provided with valve groove (23), the bottom of valve rod (19) is provided with bearing (24).

2. The valve for a natural gas pipeline according to claim 1, wherein: runner (1) and screw rod (2) fixed connection, valve adjusting device (3) bottom and communicating pipe (13) fixed connection, the internal diameter size of thread groove (4) and the external diameter size looks adaptation of screw rod (2), thread groove (4) are connected with screw rod (2) rotation.

3. The valve for a natural gas pipeline according to claim 1, wherein: the internal diameter size of pull rod (5) and the external diameter size looks adaptation of movable block (6), pull rod (5) rotate with movable block (6) and are connected, one side and connecting rod (7) fixed connection of movable block (6), locking lever (10) are the T form, one side and locking lever (10) fixed connection of connecting rod (7), locking lever (10) and screw rod (2) swing joint, the quantity of lug (8) is two sets of, lug (8) equidistance is fixed in the side of pull rod (5), the width size of recess (9) and the interval size looks adaptation of lug (8), recess (9) and lug (8) swing joint.

4. The valve for a natural gas pipeline according to claim 1, wherein: the locking device is characterized in that the inner width of the locking rod (10) is matched with the outer width of the sliding groove (11), the locking rod (10) is connected with the sliding groove (11) in a sliding mode, the number of the springs (12) is two, and the locking rod (10) is fixedly connected with the inner side of the sliding groove (11) through the springs (12).

5. The valve for a natural gas pipeline according to claim 1, wherein: the quantity of flange subassembly (15) is two sets of, flange subassembly (15) one side and communicating pipe (13) integral type structure, flange subassembly (15) opposite side and natural gas line (17) integral type structure, communicating pipe (13) pass through bolt (16) and natural gas line (17) screwed connection.

6. The valve for a natural gas pipeline according to claim 1, wherein: the valve is characterized in that the first sealing gasket (14) is of an I shape, through holes are formed in the first sealing gasket (14), the screw (2) penetrates through the through holes to be fixedly connected with the valve rod (19), the valve cores (20) are two in number and are elliptical, the valve cores (20) and the valve rod (19) are of an integrated structure, and the second sealing gasket (21) is bonded with the outer annular surface of the valve core (20).

7. The valve for a natural gas pipeline according to claim 1, wherein: the valve seat (22) is U-shaped, the valve seat (22) is longitudinally and fixedly connected with the inside of the communicating pipe (13), the inner diameter of the valve groove (23) is matched with the outer diameter of the valve core (20), the valve groove (23) is sleeved with the valve core (20), the bearing (24) is fixedly connected with the inside of the communicating pipe (13), the inner diameter of the bearing (24) is matched with the outer diameter of the valve rod (19), and the bearing (24) is rotatably connected with the valve rod (19).