CN216447525U - Valve sleeve type blow-down valve for natural gas conveying pipeline filter - Google Patents

Abstract

The utility model provides a valve sleeve type blowoff valve for a natural gas conveying pipeline filter, which comprises: the valve body, the top fixedly connected with valve gap of valve body, the opening has been seted up to the bottom surface of valve gap, and the inner wall of valve body is fixed to be inlayed and is had the disk seat, and the valve rod is installed to the inner wall of disk seat, and the outer fixed surface of valve rod is connected with the case subassembly, and the top of valve rod runs through valve body and opening in proper order and extends to the top of valve gap. This a valve barrel formula blowoff valve for natural gas conveying pipeline filter, through the current-limiting plate and the restricted aperture that set up, can make up into the restricted aperture board, and through the cooperation with flow distribution plate and buffer spring, realize the segmentation step-down to high-speed fluidic, reduce fluidic impact dynamics, reach the purpose that high-speed fluidic segmentation current-limiting steps down, simultaneously through the buffering effect of ramp, the effective control gas flow rate, make inside the slower entering valve body of fluid velocity, the realization is to the effective protection of valve body inner part, avoid the damage of valve inner part, increase the life of valve.

Description

Valve sleeve type blow-down valve for natural gas conveying pipeline filter

Technical Field

The utility model relates to the technical field of blowdown valves, in particular to a valve sleeve type blowdown valve for a natural gas conveying pipeline filter.

Background

The valve sleeve type blowoff valve is evolved by a gate valve, the valve rod is driven to be lifted by utilizing the rotation of the gear by 90 degrees to realize the opening and closing purposes, the torque is small, the operation is simple and convenient, the quick opening and closing are easy to realize, the valve sleeve type blowoff valve is simple in structure, good in sealing performance, small in size, light in weight, low in material consumption and small in installation size, and the valve sleeve type blowoff valve is widely applied to the discharge of impurities such as dust and pipeline container sediments generated by gas conveying pipeline filters and separators of natural gas, coal bed gas and the like.

When the existing valve sleeve type blowdown valve is used, due to the fact that high-speed fluid which is high in pressure difference between an inlet and an outlet and carries a large amount of dust is generated in the valve easily, the high-speed fluid easily abrades and destroys a valve inner part, and the service life of the valve is further shortened, the valve sleeve type blowdown valve for the natural gas conveying pipeline filter is needed to be provided to solve the technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a valve sleeve type blowdown valve for a natural gas conveying pipeline filter, which is used for solving the problems that a high-speed fluid carrying a large amount of dust is easily generated in the valve due to a large pressure difference between an inlet and an outlet, the high-speed fluid easily abrades and damages a valve inner part, and the service life of the valve is further shortened.

The utility model provides a valve sleeve type blowdown valve for a natural gas transmission pipeline filter, which comprises: the valve body, the top fixedly connected with valve gap of valve body, the opening has been seted up to the bottom surface of valve gap, the fixed inlaying of inner wall of valve body has the disk seat, the valve rod is installed to the inner wall of disk seat, the outer fixed surface of valve rod is connected with the case subassembly, the top of valve rod runs through valve body and opening in proper order and extends to the top of valve gap, the ring channel has been seted up to the inner wall of valve body, the inside joint of ring channel has two current-limiting plates, every the current-limiting hole that a set of annular was arranged is all seted up to the right flank of current-limiting plate, two the common two buffer spring of a side that the current-limiting plate is close to each other, two a set of flow distribution plate of equal fixedly connected with in a side that the current-limiting plate kept away from each other, two slash boards of inner wall fixedly connected with of valve body, the positive fixedly connected with LOGO sign of valve body.

Preferably, the inside of opening is equipped with the stopping, the surface cover of valve rod is equipped with two sealing washers, the fixed surface of valve rod is connected with gland, gland's bottom contacts with the inner wall of opening.

Preferably, the top fixedly connected with support of valve gap, the fixed seal bearing that inlays in top of support, seal bearing and fixedly connected with runner are run through to the top of valve rod, the external fixed surface of runner is connected with two and changes the handle.

Preferably, the inner bottom wall of the valve body is fixedly embedded with a sewage draining cylinder, the top end of the sewage draining cylinder is fixedly communicated with the bottom end of the valve seat, and the outer surface of the sewage draining cylinder is fixedly connected with a filter screen.

Preferably, the input end of the valve body and the output end of the valve body are fixedly communicated with connecting flanges, and each connecting flange is provided with a group of connecting holes on the left side face.

Preferably, a bottom cover is arranged below the valve body, a group of fastening bolts is sleeved on the bottom surface of the valve body and the bottom surface of the bottom cover together, and fastening nuts are connected to the top ends of the fastening bolts in a threaded mode.

Compared with the related art, the valve sleeve type blowdown valve for the natural gas conveying pipeline filter has the following beneficial effects:

1. the high-speed fluid pressure-reducing valve can be combined into the flow-limiting orifice plate through the flow-limiting plate and the flow-limiting orifice, and realizes the sectional pressure reduction of high-speed fluid through the matching of the flow-limiting orifice plate and the buffer spring, so that the impact force of the fluid is reduced, the purpose of sectional flow-limiting and pressure reduction of the high-speed fluid is achieved, and meanwhile, the flow velocity of gas is effectively controlled through the buffer effect of the slope plate, so that the fluid enters the valve body more slowly, the effective protection of internal parts of the valve body is realized, the damage of the internal parts of the valve is avoided, and the service life of the valve is prolonged.

2. The utility model improves the arranged connecting flange and the connecting hole, is convenient for workers to quickly connect and install the valve body, and can effectively improve the sealing performance of the valve body and facilitate the safe use of the valve through the arranged filler, the sealing ring and the filler gland.

Drawings

FIG. 1 is a schematic perspective view of a valve body according to the present invention;

FIG. 2 is a cross-sectional view of a front view of the valve body of the present invention;

FIG. 3 is a schematic perspective view of a restrictor plate according to the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 2 according to the present invention.

Reference numbers in the figures: 1. a valve body; 2. a valve cover; 3. a support; 4. turning a handle; 5. a valve stem; 6. a rotating wheel; 7. sealing the bearing; 8. a bottom cover; 9. a connecting flange; 10. connecting holes; 11. LOGO plate; 12. fastening a bolt; 13. fastening a nut; 14. a filler; 15. a seal ring; 16. a packing gland; 17. a port; 18. a valve core assembly; 19. a valve seat; 20. filtering with a screen; 21. a blowdown cylinder; 22. a flow restriction orifice; 23. a restrictor plate; 24. a flow distribution plate; 25. a buffer spring; 26. an annular groove; 27. a slope plate.

Detailed Description

The utility model is further described with reference to the following figures and embodiments.

Referring to fig. 1, 2, 3 and 4 in combination, a valve housing type blowoff valve for a natural gas transportation pipe filter includes: valve body 1, valve body 1's top fixedly connected with valve gap 2, opening 17 has been seted up to valve gap 2's bottom surface, valve body 1's inner wall is fixed to be inlayed and is had disk seat 19, valve rod 5 is installed to disk seat 19's inner wall, valve rod 5's external fixed connection has case subassembly 18, valve body 1 and opening 17 are run through in proper order and extend to valve gap 2's top on valve rod 5's top, ring channel 26 has been seted up to valve body 1's inner wall, ring channel 26's inside joint has two current-limiting plates 23, the current-limiting hole 22 that a set of annular was arranged is all seted up to every current-limiting plate 23's right flank, two common two buffer spring 25 of fixedly connected with in a side that two current-limiting plates 23 are close to each other, a set of flow distribution plate 24 of equal fixedly connected with in a side that two current-limiting plates 23 kept away from each other, two sloping plates 27 of valve body 1's front fixedly connected with LOGO sign 11.

In the concrete implementation process, the inside of opening 17 is equipped with stopping 14, the surface cover of valve rod 5 is equipped with two sealing washer 15, the fixed surface of valve rod 5 is connected with gland 16, gland 16's bottom contacts with the inner wall of opening 17, can realize the sealed of valve body 1, the safe handling of the valve of being convenient for, state valve cover 2's top fixedly connected with support 3, the fixed embedding in top of support 3 has sealed bearing 7, sealed bearing 7 and fixedly connected with runner 6 are run through on valve rod 5's top, two commentaries on classics of the fixed surface of runner 6 are 4, the rotation valve rod 5 that can make the staff relax, and then drive the rotation of case subassembly 18, be convenient for the sealed and the opening and shutting of valve body 1.

Fixed the inlaying of interior diapire of valve body 1 has a blowdown section of thick bamboo 21, the top of a blowdown section of thick bamboo 21 and the bottom mounting intercommunication of disk seat 19, the outer fixed surface of a blowdown section of thick bamboo 21 is connected with filter screen 20, can filter the inside pollution particle of getting into valve body 1, it receives the pollution damage to avoid valve internals, the equal fixed intercommunication of input of valve body 1 and the output of valve body 1 has flange 9, every flange 9 has all seted up a set of connecting hole 10 at the left surface, be convenient for realize the quick connection installation of valve body 1, the below of valve body 1 is equipped with bottom 8, the bottom surface of valve body 1 and the bottom surface of bottom 8 are overlapped jointly and are equipped with a set of fastening bolt 12, the equal threaded connection in top of every fastening bolt 12 has fastening nut 13, can make the quick installation to bottom 8 of staff can dismantle, be convenient for the emission and the clearance work of the inside pollution impurity of a blowdown section of thick bamboo 21.

The working principle of the valve sleeve type blowdown valve for the natural gas conveying pipeline filter provided by the utility model is as follows: when in use, firstly, the bottom cover 8 is installed and fixed at the bottom end of the valve body 1 through the threaded connection of the fastening bolt 12 and the fastening nut 13, then the valve body 1 is installed on a gas pipeline through the connecting flange 9 and the connecting hole 10, the gas in the pipeline enters the interior of the valve body 1 through the input end of the valve body 1, when entering, the flow dividing plate 24 is used for dividing the entering high-speed fluid, meanwhile, the flow limiting hole 22 is used for carrying out sectional flow limiting and pressure reduction on the fluid, the buffer effect of the buffer spring 25 and the flow limiting plate 23 are matched, the buffer effect on the high-speed fluid is realized, the impact force of the fluid is reduced, meanwhile, the slope plate 27 is used for carrying out secondary buffer on the fluid, the flow rate of the fluid is effectively reduced, the fluid slowly enters the interior of the valve body 1, the valve internals is protected, the fluid slowly passes through the blowdown cylinder 21 and the valve seat 19 after the flow reduction, and flows through the valve core assembly 18 and is discharged through the output end of the valve body 1, realize the stable use of valve, rotate when needs close the valve and rotate 4 and runner 6 and make valve rod 5 rotate, drive the rotatory inside of valve core subassembly 18 and seal and block valve body 1, accomplish the work of opening and shutting of valve.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (6)

1. A valve housing blowoff valve for a natural gas delivery pipe filter, comprising: the valve body (1), the top fixedly connected with valve gap (2) of valve body (1), opening (17) have been seted up to the bottom surface of valve gap (2), the inner wall of valve body (1) is fixed to be inlayed and is had disk seat (19), valve rod (5) are installed to the inner wall of disk seat (19), the external fixed surface of valve rod (5) is connected with case subassembly (18), the top of valve rod (5) runs through valve body (1) and opening (17) in proper order and extends to the top of valve gap (2), ring channel (26) have been seted up to the inner wall of valve body (1), the inside joint of ring channel (26) has two current-limiting plates (23), the current-limiting hole (22) that a set of annular was arranged are all seted up to the right flank of every current-limiting plate (23), two common fixedly connected with two buffer spring (25) in a side that current-limiting plate (23) are close to each other, two the equal fixedly connected with a set of flow restrictor plate (24) in a side that restrictor plate (23) kept away from each other, two ramp plates (27) of inner wall fixedly connected with of valve body (1), positive fixedly connected with LOGO sign (11) of valve body (1).

2. The valve sleeve type blowoff valve for the natural gas conveying pipeline filter as claimed in claim 1, wherein the inside of the through port (17) is provided with a filling material (14), the outer surface of the valve stem (5) is sleeved with two sealing rings (15), the outer surface of the valve stem (5) is fixedly connected with a packing gland (16), and the bottom end of the packing gland (16) is in contact with the inner wall of the through port (17).

3. The valve sleeve type blowdown valve for the natural gas transmission pipeline filter as claimed in claim 1, wherein a support (3) is fixedly connected to the top end of the valve cover (2), a sealing bearing (7) is fixedly embedded in the top end of the support (3), the top end of the valve rod (5) penetrates through the sealing bearing (7) and is fixedly connected with a rotating wheel (6), and two rotating handles (4) are fixedly connected to the outer surface of the rotating wheel (6).

4. The valve sleeve type blowdown valve for the natural gas transmission pipeline filter as claimed in claim 1, wherein a blowdown cylinder (21) is fixedly embedded in the inner bottom wall of the valve body (1), the top end of the blowdown cylinder (21) is fixedly communicated with the bottom end of the valve seat (19), and a filter screen (20) is fixedly connected to the outer surface of the blowdown cylinder (21).

5. The valve sleeve type blowoff valve for the natural gas conveying pipeline filter as claimed in claim 1, wherein the input end of the valve body (1) and the output end of the valve body (1) are both fixedly communicated with a connecting flange (9), and each connecting flange (9) is provided with a group of connecting holes (10) on the left side surface.

6. The valve sleeve type blowoff valve for natural gas conveying pipeline filter as claimed in claim 1, wherein a bottom cover (8) is provided below said valve body (1), a set of fastening bolts (12) are commonly sleeved on the bottom surface of said valve body (1) and the bottom surface of said bottom cover (8), and a fastening nut (13) is threadedly connected to the top end of each fastening bolt (12).

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