CN107642627A - A kind of stop valve for being capable of pressure release - Google Patents

A kind of stop valve for being capable of pressure release Download PDF

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Publication number
CN107642627A
CN107642627A CN201610577875.7A CN201610577875A CN107642627A CN 107642627 A CN107642627 A CN 107642627A CN 201610577875 A CN201610577875 A CN 201610577875A CN 107642627 A CN107642627 A CN 107642627A
Authority
CN
China
Prior art keywords
valve
pressure release
relief hole
filler
release block
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.)
Pending
Application number
CN201610577875.7A
Other languages
Chinese (zh)
Inventor
吴亚清
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Niuwei Valve Co Ltd
Original Assignee
Niuwei Valve Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Niuwei Valve Co Ltd filed Critical Niuwei Valve Co Ltd
Priority to CN201610577875.7A priority Critical patent/CN107642627A/en
Publication of CN107642627A publication Critical patent/CN107642627A/en
Pending legal-status Critical Current

Links

Abstract

The present invention provides a kind of stop valve for being capable of pressure release, including valve body, flap, valve rod, bonnet and handle, filler is provided between the bonnet and valve rod, the filler is respectively arranged with seal washer up and down, relief hole is provided with the valve seat, pressure release block is provided with the relief hole, the valve seat is provided with divider, pressure release block described in the divider face.Have the beneficial effect that:Filler is used in valve rod and valve cover chamber, filler sets seal washer respectively up and down, it is possible to reduce the friction between lower valve rod and valve body, while improve the sealing of valve rod and valve cover chamber;Relief hole is opened up on valve seat, and is got lodged in pressure release block on relief hole, when pressure is excessive in pipeline, relief hole can be opened, medium is arranged to below pipeline via relief hole, and divider can prevent pressure release block from entering in pipeline, effectively prevents medium from being leaked pollution environment because pressure is excessive.

Description

A kind of stop valve for being capable of pressure release
Technical field
The invention belongs to pipe control apparatus field, more particularly to a kind of stop valve for being capable of pressure release.
Background technology
Stop valve refers to closure member(Flap)The valve moved along valve seat center line, flap make straight line along the center line of valve seat Motion, due to the valve rod of such valve, to be turned on and off stroke relatively short, and has very reliable cutting function, and by In the change of valve seat port and the stroke direct proportionality of flap, it is very suitable for the regulation to flow, therefore, this type The shutoff valve that dams be highly suitable as cutting off or the use that adjusts and throttle.Stop valve is once in opening, its valve Just there is no contact between seat and valve clack sealing surface, when it is closed, there is very reliable cutoff action, thus its sealing Face mechanical wear is smaller, because the valve seat and flap of most of stop valve are easier to repair or change, therefore works as potted component During damage, without whole valve is removed from pipeline, this is very applicable for the integral occasion of valve and pipeline welding 's.
Stop valve is a kind of fully switched on or the closed circuit valve of cut-out pipeline, and it is widely used, often in the row such as oil, chemical industry It is used for flow of media in control piper in industry.Existing stop valve is general to be only capped on filler when being sealed to filler One layer of follower, its sealing is not high, after a period of time has been used, the situation of seepage easily occurs.In addition, where stop valve Pipeline when there is the excessive situation of pressure, if not filling relief valve or relief valve does not have normal work, duct portion can be caused The damage of part, medium are arranged outwardly, pollute environment.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provides a kind of stop valve for being capable of pressure release, including valve body, flap, valve Bar, bonnet and handle, the valve body is interior to be provided with valve seat, and the flap is located on valve seat, and the bonnet is secured by bolts in institute To state on valve body, the valve rod runs through the bonnet and valve body, and its lower end is connected with the flap, and upper end is connected with the handle, Characterized in that, being provided with filler between the bonnet and valve rod, the filler is respectively arranged with seal washer up and down, described Relief hole is provided with valve seat, is provided with pressure release block on the relief hole, the valve seat is provided with divider, described in the divider face Pressure release block.
The section of the pressure release block is circle.
Beneficial effects of the present invention are:Filler is used in valve rod and valve cover chamber, filler sets sealing gasket respectively up and down Circle, it is possible to reduce the friction between lower valve rod and valve body, reduce abrasion, while improve the sealing of valve rod and valve cover chamber;In valve seat On open up relief hole, and got lodged in pressure release block on relief hole, when pressure is excessive in pipeline, relief hole can be opened, medium via Relief hole is arranged to below pipeline, and divider can prevent pressure release block from entering in pipeline, effectively prevents medium from being leaked dirt because pressure is excessive Contaminate environment.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
The present invention is described in more detail below with reference to accompanying drawings, which show the preferred embodiments of the present invention, It should be appreciated that those skilled in the art can change invention described herein and still realize the advantageous effects of the present invention.Cause This, description below is appreciated that for the widely known of those skilled in the art, and is not intended as limitation of the present invention.
In figure, 1, valve body;2nd, flap;3rd, valve rod;4th, bonnet;5th, handle;6th, pressure release block;7th, divider;8th, filler;9th, it is close Seal washer;10th, valve seat.
As shown in figure 1, being provided with valve seat 10 in the valve body 1, the flap 2 is located on valve seat 10, and the bonnet 4 passes through spiral shell Bolt is fixed on the valve body 1, and the valve rod 3 runs through the bonnet 4 and valve body 1, and its lower end is connected with the flap 2, upper end It is connected with the handle 5, filler 8 is provided between the bonnet 4 and valve rod 3, the filler is respectively arranged with sealing about 8 Packing ring 9.Relief hole is provided with the valve seat 10, pressure release block 6 is provided with the relief hole, the valve seat 10 is provided with divider 7, Pressure release block 6 described in the face of divider 7.Pressure release block 6 can be any geometry, and in the present embodiment, the section of pressure release block 6 is circle Shape, divider 7 is into rice font.Pressure release block 6 uses different model according to different pipelines using pressure requirements.Hole on divider 7 is small In the size of pressure release block 6, after pressure release block 6 is washed open by medium, can be blocked by divider 7.
The present invention is described in detail above by embodiment, but the content is only the preferable implementation of the present invention Example, it is impossible to be considered as the practical range for limiting the present invention.All equivalent changes made according to the present patent application scope and improvement Deng, all should still belong to the present invention patent covering scope within.

Claims (2)

1. a kind of stop valve for being capable of pressure release, including valve body, flap, valve rod, bonnet and handle, the valve body is interior to be provided with valve seat, The flap is located on valve seat, and the bonnet is secured by bolts on the valve body, and the valve rod runs through the bonnet and valve Body, its lower end are connected with the flap, and upper end is connected with the handle, it is characterised in that are provided between the bonnet and valve rod Filler, the filler are respectively arranged with seal washer up and down, relief hole are provided with the valve seat, is set on the relief hole There is pressure release block, the valve seat is provided with divider, pressure release block described in the divider face.
2. a kind of stop valve for being capable of pressure release as claimed in claim 1, it is characterised in that the section of the pressure release block is circle Shape.
CN201610577875.7A 2016-07-21 2016-07-21 A kind of stop valve for being capable of pressure release Pending CN107642627A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610577875.7A CN107642627A (en) 2016-07-21 2016-07-21 A kind of stop valve for being capable of pressure release

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610577875.7A CN107642627A (en) 2016-07-21 2016-07-21 A kind of stop valve for being capable of pressure release

Publications (1)

Publication Number Publication Date
CN107642627A true CN107642627A (en) 2018-01-30

Family

ID=61108330

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610577875.7A Pending CN107642627A (en) 2016-07-21 2016-07-21 A kind of stop valve for being capable of pressure release

Country Status (1)

Country Link
CN (1) CN107642627A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108317261A (en) * 2018-04-25 2018-07-24 马鞍山市中天机械制造安装有限公司 A kind of shut-off valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108317261A (en) * 2018-04-25 2018-07-24 马鞍山市中天机械制造安装有限公司 A kind of shut-off valve

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Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20180130

WD01 Invention patent application deemed withdrawn after publication