CN217977452U

CN217977452U - Self-sealing wear-resistant isolation valve

Info

Publication number: CN217977452U
Application number: CN202222424749.1U
Authority: CN
Inventors: 胡显录
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2022-12-06
Anticipated expiration: 2032-09-14

Abstract

The utility model provides a self sealss wear-resisting isolating valve, belongs to valve technical field, including valve gap, valve body and valve plate, the valve gap lock is on the valve body, and the valve gap top is equipped with the support, be equipped with threaded connection's valve rod in the support, the bottom at the valve rod is fixed to the valve plate, be equipped with the valve pocket in the valve body, the valve pocket divide into valve pocket and lower valve pocket, go up and be equipped with the runner that supplies the liquid circulation between valve pocket and the lower valve pocket, be equipped with the disk seat between valve body and the valve plate, be equipped with pretension spring between disk seat and the valve body. The utility model discloses what the valve plate adopted is that parallel single flashboard does not have water conservancy diversion pore structure, and it has great sealed face wearing and tearing compensation ability, at the upper and lower terminal surface of runner, has set up the disk seat respectively, and two disk seats form the double containment face with the valve plate under the pressure effect of pretension spring, and this kind of form enables the movable flashboard of below can not break away from sealed face, in a word, the utility model discloses simple structure is applicable to industrial production.

Description

Self-sealing wear-resistant isolation valve

Technical Field

The utility model relates to an isolation valve especially can realize isolation valve from sealss belongs to valve technical field.

Background

Valve components often suffer from leakage, corrosion, plugging, etc. during use. Valves for controlling the opening and closing of pipeline media are common flat valves before and after the oil paddle pump and under the severe medium working conditions of crude oil pipelines, oil refining catalytic cracking devices, coal industries and the like. In the valve working process, in the use process, the ageing impurity that can lead to in the pipeline of sealing member gets into the valve body inner chamber, various abominable impurity coking such as catalyst, coal slurry, slay when low temperature, when the valve is opened, is closed, impurity can deposit or block between sealed face, but under long-term use, the sealed face of valve plate can produce wearing and tearing with the disk seat, influence sealed effect, reduce valve life, the user has been influenced and has had economic benefits, the cost that the user adds other configurations in order to satisfy the operation requirement has been increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's defect, a self sealss wear-resisting isolating valve is provided.

Technical problem is solved through following technical scheme:

the utility model provides a self sealss wear-resisting isolation valve, includes the valve gap, valve body and valve plate, the valve gap lock is on the valve body, and the valve gap top is equipped with the support, be equipped with threaded connection's valve rod in the support, the bottom at the valve rod is fixed to the valve plate, be equipped with the valve pocket in the valve body, the valve pocket divide into valve pocket and lower valve pocket, go up and be equipped with the runner that supplies the liquid circulation between valve pocket and the lower valve pocket, go up and be equipped with sealing device in valve pocket and the lower valve pocket respectively, sealing device includes sealed letter and the clamp plate that the level set up, be equipped with interior gasket and outer gasket between sealed letter and the clamp plate, interior gasket contacts with the valve plate, is equipped with sealed the pad between interior gasket and the sealed letter, is equipped with sealed the pad between outer gasket and the sealed letter equally.

According to the self-sealing wear-resistant isolating valve, the movable valve plate is arranged in the lower valve cavity, the spring is arranged at the bottom of the movable valve plate and is fixed in the lower valve cavity through the spring base, and the movable valve plate is in contact with the inner gasket of the sealing device.

According to the self-sealing wear-resistant isolating valve, the valve seat is arranged between the valve body and the valve plate, and the pre-tightening spring is arranged between the valve seat and the valve body.

Above-mentioned self sealss wear-resisting isolating valve, the valve plate is unanimous with the movable valve plate thickness.

Above-mentioned self sealss wear-resisting isolating valve, the outer gasket is fixed by the quarto ring.

Above-mentioned self sealss wear-resisting isolating valve is equipped with the filler between valve rod and the support.

Above-mentioned wear-resisting isolating valve of self sealss, be equipped with the purge hole on the movable valve plate, the purge hole is through sweeping the takeover and connecting the purge valve.

The utility model has the advantages of it is following:

the utility model discloses what the valve plate adopted is parallel single flashboard does not have guiding hole structure, it has great sealed face wearing and tearing compensation ability, the both sides of valve plate are equipped with the inner pad, a gap for preventing the fluid by the valve plate surface gets into the valve pocket, outer gasket is located the valve body inner wall, prevent that the fluid from getting into the valve pocket by the gap of valve body internal surface, at the upper and lower terminal surface of runner, the disk seat has been set up respectively, two disk seats under the pressure effect of pretension spring and sealing device's dual function, form the double containment face with the valve plate, the movable flashboard that this kind of form enabled the below can not break away from sealed face, and simultaneously, make the parallel can not produce the taper angle between disk seat and the movable valve seat. The medium is prevented from entering the valve cavity, the sealing function is realized, the sealing leakage problem of a production process device with high pressure, high and low temperature, large size and solid material is solved, and zero leakage is realized. Valve plate surface coating sealing coating, the part surface that meets with the valve plate also coats sealing coating, makes it have sealed complementary, the utility model discloses the valve plate is the right angle, has the special function who strikes off the oil coke, cuts impurity and mineral granule.

Drawings

FIG. 1 is a schematic front view, sectional structure of the present invention;

FIG. 2 is a schematic side view of the cross-sectional structure of the present invention;

fig. 3 is an enlarged view of the structure of part a in fig. 1 of the present invention.

In the drawings, the respective reference numerals denote: 1. the valve comprises a valve cover, 2, a valve body, 3, a valve plate, 4, a movable valve plate, 5, a valve seat, 6, a pre-tightening spring, 7, a spring, 8, a flow channel, 9, a spring base, 10, a support, 11, a valve rod, 12, a sealing box, 13, a pressure plate, 14, an inner gasket, 15, an outer gasket, 16, a sealing gasket, 17, a four-ring opening, 18, a filler, 19, a blowing hole, 20, a blowing connecting pipe, 21, a blowing valve, 22 and an installation block.

Detailed Description

Referring to the attached drawing 1, the utility model discloses a valve gap 1, valve body 2 and valve plate 3, 1 lock of valve gap is on valve body 2, and 1 top of valve gap is equipped with support 10, be equipped with threaded connection's valve rod 11 in the support 10, valve plate 3 is fixed in the bottom of valve rod 11, be equipped with the valve pocket in the valve body 2, the valve pocket divide into valve pocket and lower valve pocket, go up and be equipped with the runner 8 that supplies the liquid circulation between valve pocket and the lower valve pocket, the space in the last valve pocket can supply the space of valve plate 3 up, and when valve plate 3 down extremely the bottom, can separate 8 complete runners. Be equipped with disk seat 5 between valve body 2 and the valve plate 3, be equipped with pretension spring 6 between disk seat 5 and the valve body 2, disk seat 5 divide into disk seat and lower disk seat, and two disk seats can hug closely the side of valve plate 3 with activity disk seat 5 under the effect of spring pretension, and valve plate 3 is in the switching in-process valve plate 3 and the sealed face of disk seat 5 in close contact with all the time, prevent that liquid from getting into the valve pocket by the gap between disk seat 5 and the valve plate 3, play sealed function. Be equipped with sealing device in the valve pocket, sealing device includes the sealed letter 12 and the clamp plate 13 of level setting, be equipped with interior gasket 14 and outer gasket 15 between sealed letter 12 and the clamp plate 13, be equipped with sealed the pad 16 between interior gasket 14 and the sealed letter 12, be equipped with sealed the pad 16 between outer gasket 15 and the sealed letter 12 equally. The inner gasket 14 is in contact with the valve plate 3 to form a sealing surface, the outer gasket 15 is in contact with the inner wall of the valve body to form a sealing surface, therefore, fluid cannot flow towards the valve cavity no matter which gap is formed, and a bolt is arranged between the sealing box 12 and the pressure plate 13 to tightly press and fix the sealing device.

The lower valve cavity is internally provided with a movable valve plate 4, the bottom of the movable valve plate 4 is provided with a spring 7, the spring 7 is fixed in the lower valve cavity through a spring base 9, and the movable valve plate 4 is contacted with an inner gasket 14 of the sealing device. The valve plate 3 and the movable valve plate 4 are consistent in thickness. When the valve is opened, the valve plate 3 rises, and in the vertical direction, the movable valve plate 4 rises to the lower edge of the flow passage 8 under the action of the spring 7. In the horizontal direction, the movable valve plate 4 is sealed with the sealing surface of the valve seat 5 under the action of the pre-tightening spring 6 of the lower valve seat, and a medium in the flow channel 8 is blocked in the flow channel 8 and cannot enter the lower valve cavity. When the valve is closed, the valve plate 3 is lowered to be in contact with the movable valve plate 4, the movable valve plate 4 is pushed downwards, the center of the movable valve plate 4 is designed to be an inner arc, the two ends of the arc are horizontal sections and have a certain height, so that the movable valve plate 4 can be kept to be tightly attached to and sealed with the lower valve seat in the horizontal direction, and the valve is good in circulating opening and closing sealing effect.

The outer pad 15 is fixed by a four-open ring 17. And a filler is arranged between the valve rod 11 and the support 10, and the filler is a thermal insulation filler.

The valve plate is the right angle, has the special function of scraping away oil coke, cuts impurity and mineral granule.

The movable valve plate 4 is provided with a blowing hole 19, the blowing hole 19 is connected with a blowing valve 21 through a blowing connecting pipe 20, and the blowing device is used for blowing and cleaning impurities in the valve.

The surface of the valve plate is coated with the sealing coating, and the contact surface of the valve seat and the valve plate is also coated with the sealing coating, so that the sealing effect is better.

And an installation block 22 is arranged between the valve seat 5 and the valve body 2, the pre-tightening spring 6 is positioned in the installation block, one end of the pre-tightening spring is abutted against the valve seat 5, and the other end of the pre-tightening spring is abutted against the valve body installation block. The contact surface of the mounting block 22, which is abutted against the valve seat 5, is of a stepped type.

Claims

1. The utility model provides a self sealss wear-resisting isolation valve, includes valve gap (1), valve body (2) and valve plate (3), valve gap (1) lock is on valve body (2), and valve gap (1) top is equipped with support (10), be equipped with threaded connection's valve rod (11) in support (10), the bottom at valve rod (11) is fixed in valve plate (3), its characterized in that, be equipped with the valve pocket in valve body (2), the valve pocket divide into valve pocket and lower valve pocket, go up and be equipped with runner (8) that supply the liquid circulation between valve pocket and the lower valve pocket, go up and be equipped with sealing device in the valve pocket under and respectively, sealing device includes sealed letter (12) and clamp plate (13) that the level set up, be equipped with between sealed letter (12) and clamp plate (13) interior gasket (14) and outer gasket (15), interior gasket (14) and valve plate (3) contact, be equipped with sealed pad (16) between interior gasket (14) and sealed letter (12), be equipped with sealed pad (16) between outer gasket (15) and sealed letter (12) equally.

2. The self-sealing wear-resistant isolating valve as claimed in claim 1, wherein a movable valve plate (4) is arranged in the lower valve cavity, a spring (7) is arranged at the bottom of the movable valve plate (4), the spring (7) is fixed in the lower valve cavity through a spring base (9), and the movable valve plate (4) is in contact with an inner gasket (14) of the sealing device.

3. The self-sealing wear-resistant isolating valve according to claim 2, characterized in that a valve seat (5) is arranged between the valve body (2) and the valve plate (3), and a pre-tightening spring (6) is arranged between the valve seat (5) and the valve body (2).

4. A self-sealing, wear-resistant isolating valve according to claim 3, characterised in that the valve plate (3) is of the same thickness as the dynamic valve plate (4).

5. A self-sealing, wear-resistant isolating valve according to claim 4, characterised in that the outer gasket (15) is secured by four open rings (17).

6. A self-sealing, wear-resistant isolating valve according to claim 5, characterised in that a packing (18) is provided between the valve stem (11) and the carrier (10).

7. The self-sealing wear-resistant isolation valve according to claim 6, wherein the movable valve plate (4) is provided with a purge hole (19), and the purge hole (19) is connected with the purge valve (21) through a purge connection pipe (20).