CN209959903U

CN209959903U - Valve for petroleum pipeline

Info

Publication number: CN209959903U
Application number: CN201920187856.2U
Authority: CN
Inventors: 何茂林
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-02-03
Filing date: 2019-02-03
Publication date: 2020-01-17
Anticipated expiration: 2029-02-03

Abstract

The utility model relates to a pipeline valve door gear technical field just discloses valve for petroleum pipeline, which comprises a valve body, the runner hole has been seted up to the inside of valve body, the top fixed mounting of valve body has the valve gap, the internal thread of valve gap has cup jointed the valve rod, the top fixed mounting of valve rod has the son wheel that is located the valve gap top, the bottom activity of valve gap has cup jointed the valve plate that is located the valve body inside, the diaphragm orifice has been seted up to the positive bottom of valve plate, the inside fixed mounting of valve body has the disk seat that is located runner hole middle part, the quantity of disk seat is two. This valve for petroleum pipeline sets up annular and built-in tetrafluoride ring through on the face that disk seat and valve plate contacted for disk seat and valve plate contact form sealed face, thereby avoid the valve plate can have the clearance with the disk seat friction in the up-and-down motion process, improved the leakproofness of valve, and then improved the practicality of this valve for petroleum pipeline.

Description

Valve for petroleum pipeline

Technical Field

The utility model relates to a pipeline valve equipment technical field specifically is valve for petroleum pipeline.

Background

Crude petroleum oils are generally corrosive and prone to coagulation, and crude oil is transported from a source at high pressure, uncontrollable, high design flow rates and harsh transportation environments, so crude oil pipeline valves are generally manufactured and tested according to international advanced standards.

The valve is opened and closed through mutually supporting use between disk seat and the valve plate in the current petroleum pipeline valve, and disk seat and valve plate are all solid metal, and the valve plate can have the clearance with the disk seat in the up-and-down motion process to lead to the poor easy oil leak of leakproofness of valve, because the composition is complicated in the crude oil, the valve plate easily rusts, and the iron rust is located the inside difficult clearance of valve, and the existence of iron rust has further reduced the leakproofness between valve plate and the disk seat simultaneously.

SUMMERY OF THE UTILITY MODEL

The not enough to prior art, the utility model provides a valve for petroleum pipeline possesses the advantage that improves petroleum pipeline valve seal nature, has solved the problem mentioned among the above-mentioned background art.

The utility model provides a following technical scheme: the valve for the petroleum pipeline comprises a valve body, wherein a flow passage hole is formed in the valve body, a valve cover is fixedly mounted at the top of the valve body, a valve rod is sleeved on the inner thread of the valve cover, a sub-wheel positioned above the valve cover is fixedly mounted at the top end of the valve rod, a valve plate positioned in the valve body is movably sleeved at the bottom end of the valve cover, a hole is formed in the bottom of the front surface of the valve plate, two valve seats are fixedly mounted in the valve body and positioned in the middle of the flow passage hole, the valve plate is positioned between the two valve seats, a tetrafluoride ring is fixedly mounted on the right side of each valve seat, one side, away from the valve seat, of each tetrafluoride ring is tightly contacted with the outer surface of the valve plate, a clamping groove positioned above the tetrafluoride ring is formed in the right side of each valve seat, an expansion ring is, the left side fixed mounting of inner ring has the shell fragment, the left side of shell fragment and the left side fixed connection of draw-in groove inner chamber, the right side fixed mounting of expansion ring has the guard ring that is located the outside on disk seat right side, the right flank of guard ring contacts with the surface of valve plate.

Preferably, a vertical groove is formed in the valve body, and the bottom of the vertical groove is communicated with the middle of the top surface of the runner hole.

Preferably, the diameter of the runner hole is larger than that of the plate hole, and the runner hole penetrates through the left side and the right side of the valve body.

Preferably, the right side surface of the protection ring and the right side surface of the tetrafluoride ring are located on the same vertical plane, and the right side surface of the protection ring is in a matte state.

Preferably, the right side surface of the protection ring is in an arc state, and the diameter of the protection ring is larger than that of the tetrafluoride ring.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this valve for petroleum pipeline sets up annular and built-in tetrafluoride ring through on the face that disk seat and valve plate contacted for disk seat and valve plate contact form sealed face, thereby avoid the valve plate can and the disk seat have the clearance in the up-and-down motion in-process, improved the leakproofness of valve, and then improved the practicality of this valve for petroleum pipeline.

2. This valve for petroleum pipeline, through at the disk seat, the draw-in groove, the expansion ring, mutually support between shell fragment and the guard ring, the expansion ring can be in the inside slip of controlling of draw-in groove, the shell fragment provides right elasticity to the expansion ring, make the outer surface in close contact with of guard ring and valve plate, during the valve plate up-and-down motion, the guard ring forms the rust of friction and detach the valve plate surface with the surface of valve plate, thereby it is damaged by the rust friction to reduce the tetrafluoride ring, and then the leakproofness of this valve for petroleum pipeline has further been improved.

Drawings

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

fig. 2 is an enlarged schematic view of the structure at a position a of the present invention;

FIG. 3 is a schematic structural view of the valve plate of the present invention;

FIG. 4 is a schematic perspective view of the protection ring of the present invention;

fig. 5 is a schematic perspective view of the valve seat of the present invention.

In the figure: 1. a valve body; 2. a flow passage hole; 3. a valve plate; 4. plate holes; 5. a valve seat; 6. a valve cover; 7. a sub-wheel; 8. a valve stem; 9. a spring plate; 10. a card slot; 11. an inner ring; 12. a telescopic ring; 13. a guard ring; 14. And (4) tetrafluoro 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. 1-5, a valve for an oil pipeline comprises a valve body 1, a flow passage hole 2 is formed in the valve body 1, a vertical groove is formed in the valve body 1, the bottom of the vertical groove is communicated with the middle of the top surface of the flow passage hole 2, the diameter of the flow passage hole 2 is larger than that of a plate hole 4, the flow passage hole 2 penetrates through the left side and the right side of the valve body 1, a valve cover 6 is fixedly installed at the top of the valve body 1, a valve rod 8 is sleeved on the internal thread of the valve cover 6 and rotates to enable the valve rod 8 to move up and down in the valve cover 6, the valve rod 8 can only rotate in the valve plate 3 and drive the valve plate 3 to move up and down in the valve cover 6, a sub wheel 7 positioned above the valve cover 6 is fixedly installed at the top end of the valve rod 8, the valve plate 3 positioned in the valve body 1 is movably sleeved at the bottom end of the valve cover 6, a plate hole 4 is, the quantity of the valve seats 5 is two, the valve plate 3 is positioned between the two valve seats 5, the right side of the valve seat 5 is fixedly provided with a tetrafluoride ring 14, one side of the tetrafluoride ring 14, which is far away from the valve seat 5, is tightly contacted with the outer surface of the valve plate 3, the right side of the valve seat 5 is provided with a clamping groove 10 positioned above the tetrafluoride ring 14, an expansion ring 12 is movably sleeved in the clamping groove 10, the left side of the expansion ring 12 is fixedly provided with an inner ring 11 positioned in the clamping groove 10, the left side of the inner ring 11 is fixedly provided with an elastic sheet 9, the elastic sheet 9 provides right elastic force for the expansion ring 12, so that the protection ring 13 is tightly contacted with the outer surface of the valve plate 3, the right side surface of the protection ring 13 is in a non-smooth frosted state, when the valve plate 3 moves up and down, the protection ring 13 forms friction with the outer surface of the valve plate, the right side fixed mounting of expansion ring 12 has the outside guard ring 13 that is located disk seat 5 right side, and the right flank of guard ring 13 contacts with the surface of valve plate 3, and the guard ring 13 right flank is located same vertical plane with 14 right flanks of tetrafluoro ring, and the right flank of guard ring 13 is the dull polish state of non-smoothness, and the arc state is personally submitted to the right side of guard ring 13, and the diameter of guard ring 13 is greater than the diameter of tetrafluoro ring 14.

During the use, rotor wheel 7 control valve plate 3 reciprocates in the inside of valve body 1, through set up the annular and built-in tetrafluoride ring 14 on the face that disk seat 5 and valve plate 3 contacted, make disk seat 5 and the contact of valve plate 3 form sealed face, thereby avoid valve plate 3 can have the clearance with disk seat 5 friction in the up-and-down motion process, the leakproofness of valve has been improved, expansion ring 12 can be in the inside slip of stretching out and drawing back of left and right of draw-in groove 10, shell fragment 9 provides right elasticity to expansion ring 12, make the surface in close contact with of guard ring 13 and valve plate 3, during the up-and-down motion of valve plate 3, guard ring 13 forms the iron rust of friction and detach valve plate 3 surface with the surface of valve plate 3, reduce tetrafluoride ring 14 friction damage.

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

1. Valve for petroleum pipeline, including valve body (1), its characterized in that: the improved butterfly valve is characterized in that a flow channel hole (2) is formed in the valve body (1), a valve cover (6) is fixedly mounted at the top of the valve body (1), a valve rod (8) is sleeved on an internal thread of the valve cover (6), a sub-wheel (7) positioned above the valve cover (6) is fixedly mounted at the top end of the valve rod (8), a valve plate (3) positioned in the valve body (1) is movably sleeved at the bottom end of the valve cover (6), a plate hole (4) is formed in the front bottom of the valve plate (3), a valve seat (5) positioned in the middle of the flow channel hole (2) is fixedly mounted in the valve body (1), the valve seats (5) are two in number, the valve plate (3) is positioned between the two valve seats (5), a tetrafluoride ring (14) is fixedly mounted on the right side of the valve seat (5), and one side of the tetrafluoride ring (14) far away from the, draw-in groove (10) that are located tetrafluoro ring (14) top are seted up on the right side of disk seat (5), expansion ring (12) have been cup jointed in the inside activity of draw-in groove (10), the left side fixed mounting of expansion ring (12) has inner ring (11) that are located draw-in groove (10) inside, the left side fixed mounting of inner ring (11) has shell fragment (9), the left side of shell fragment (9) and the left side fixed connection of draw-in groove (10) inner chamber, the right side fixed mounting of expansion ring (12) has and is located disk seat (5) right side outside guard ring (13), the right flank of guard ring (13) contacts with the surface of valve plate (3).

2. The valve for petroleum pipelines of claim 1, wherein: a vertical groove is formed in the valve body (1), and the bottom of the vertical groove is communicated with the middle of the top surface of the runner hole (2).

3. The valve for petroleum pipelines of claim 1, wherein: the diameter of the runner hole (2) is larger than that of the plate hole (4), and the runner hole (2) penetrates through the left side and the right side of the valve body (1).

4. The valve for petroleum pipelines of claim 1, wherein: the right side surface of the protection ring (13) and the right side surface of the tetrafluoride ring (14) are located in the same vertical plane, and the right side surface of the protection ring (13) is in a matte state.

5. The valve for petroleum pipelines of claim 1, wherein: the right side surface of the protection ring (13) is in an arc state, and the diameter of the protection ring (13) is larger than that of the tetrafluoride ring (14).