CN107631037A - A kind of automatic decompression type butterfly valve - Google Patents

A kind of automatic decompression type butterfly valve Download PDF

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Publication number
CN107631037A
CN107631037A CN201610564145.3A CN201610564145A CN107631037A CN 107631037 A CN107631037 A CN 107631037A CN 201610564145 A CN201610564145 A CN 201610564145A CN 107631037 A CN107631037 A CN 107631037A
Authority
CN
China
Prior art keywords
valve
valve body
relief hole
valve rod
filler
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
CN201610564145.3A
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 CN201610564145.3A priority Critical patent/CN107631037A/en
Publication of CN107631037A publication Critical patent/CN107631037A/en
Pending legal-status Critical Current

Links

Abstract

The present invention provides a kind of automatic decompression type butterfly valve, including valve body, valve seat, upper valve rod, lower valve rod and flap, the flap is located in valve body, and it is connected with the upper valve rod, lower valve rod, the valve body lower portion is connected with the valve seat, and filler is provided between the lower valve rod and the valve body, and the filler is provided with seal washer, the valve body is provided with relief hole, and pressure release block is provided with the relief hole.Beneficial effects of the present invention are:Filler is used between lower valve rod and valve body, seal washer is set on filler, it is possible to reduce the friction between lower valve rod and valve body, reduces abrasion, while improves the sealing between lower valve rod and valve body;Relief hole is opened up on flap, and is placed in relief hole on pressure release block, when pressure is excessive in pipeline, is moved after pressure release block, relief hole can be opened, and medium arranges pipeline downwards via relief hole.

Description

A kind of automatic decompression type butterfly valve
Technical field
The invention belongs to pipe control apparatus field, more particularly to a kind of automatic decompression type butterfly valve.
Background technology
Butterfly valve refers to that closure member is disk, and a kind of valve of open and close is reached around valve shaft rotation, main on pipeline to play cut-out and throttling action.The characteristics of industrial special butterfly valve can high temperature resistant, be applicable that pressure limit is also higher, and valve latus rectum is big, valve body replaces rubber ring using carbon steel manufacture, the sealing ring of valve plate using becket.Industrial butterfly valve suitable for producer, coal gas, natural gas, liquefied petroleum gas, town gas, air, chemical industry smelt and the engineering system such as generation environment-friendly convey various corrosivity, non-corrosive fluids medium pipeline on, for adjusting and blocking the flowing of medium.But after butterfly valve long-time, its valve seat part is easily worn, and leakage scenarios occurs.And the pipeline where butterfly valve if not filling relief valve or relief valve does not have normal work, can cause the damage of pipeline component, or even medium row is outwardly, causes environmental pollution when there is the excessive situation of pressure.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provides a kind of automatic decompression type butterfly valve, including valve body, valve seat, upper valve rod, lower valve rod and flap, the flap is located in valve body, and is connected with the upper valve rod, lower valve rod, the valve body lower portion is connected with the valve seat, characterized in that, being provided with filler between the lower valve rod and the valve body, the filler is provided with seal washer, the valve body is provided with relief hole, and pressure release block is provided with the relief hole.
Also include dye orifice, the dye orifice is located in the valve body, and is connected with the relief hole, and the dyestuff bore end is provided with translucent cover, and the pressure release block end is provided with dyestuff.
Beneficial effects of the present invention are:Filler is used between lower valve rod and valve body, seal washer is set on filler, it is possible to reduce the friction between lower valve rod and valve body, reduces abrasion, while improves the sealing between lower valve rod and valve body;Relief hole is opened up on flap, and is placed in relief hole on pressure release block, when pressure is excessive in pipeline, is moved after pressure release block, relief hole can be opened, and medium arranges pipeline downwards via relief hole;Using dye orifice and dyestuff, after the displacement of pressure release block, dyestuff can flow into dye orifice, be easy to related personnel to find that the relief hole of this butterfly valve has already turned in time.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the structural representation of the relief hole 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.Therefore, 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, valve seat;3rd, upper valve rod;4th, lower valve rod;5th, flap;6th, filler;7th, seal washer;8th, pressure release block;9th, dye orifice;10th, dyestuff;11st, relief hole.
As shown in Figure 1, 2, flap 5 is located in valve body 1, and is connected with upper valve rod 3, lower valve rod 4, and the bottom of valve body 1 is connected with valve seat 2, and filler 6 is provided between lower valve rod 4 and valve body 1, and filler 6 is provided with seal washer 7.Valve body 1 is provided with relief hole 11, and pressure release block 8 is provided with relief hole 11.Dye orifice 9 is located in valve body 1, and connected with relief hole 11, and the end of dye orifice 9 is provided with translucent cover, and the end of pressure release block 8 is provided with dyestuff 10.Pressure release block 8 can be any geometry, and in the present embodiment, the section of pressure release block 8 is circle.Relief hole 11, pressure release block 8 use different model according to different pipelines using pressure requirements.The area of section of dye orifice 9 is less than the area of section of relief hole 11.
The present invention is described in detail above by embodiment, but the content is only presently preferred embodiments of the present invention, it is impossible to be considered as the practical range for limiting the present invention.Any changes and modifications in accordance with the scope of the present application, all should still it belong within the patent covering scope of the present invention.

Claims (2)

  1. A kind of 1. automatic decompression type butterfly valve, including valve body, valve seat, upper valve rod, lower valve rod and flap, the flap is located in valve body, and be connected with the upper valve rod, lower valve rod, the valve body lower portion is connected with the valve seat, it is characterised in that, filler is provided between the lower valve rod and the valve body, the filler is provided with seal washer, and the valve body is provided with relief hole, pressure release block is provided with the relief hole.
  2. 2. a kind of automatic decompression type butterfly valve as claimed in claim 1, it is characterised in that also including dye orifice, the dye orifice is located in the valve body, and is connected with the relief hole, and the dyestuff bore end is provided with translucent cover, and the pressure release block end is provided with dyestuff.
CN201610564145.3A 2016-07-18 2016-07-18 A kind of automatic decompression type butterfly valve Pending CN107631037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610564145.3A CN107631037A (en) 2016-07-18 2016-07-18 A kind of automatic decompression type butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610564145.3A CN107631037A (en) 2016-07-18 2016-07-18 A kind of automatic decompression type butterfly valve

Publications (1)

Publication Number Publication Date
CN107631037A true CN107631037A (en) 2018-01-26

Family

ID=61112979

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610564145.3A Pending CN107631037A (en) 2016-07-18 2016-07-18 A kind of automatic decompression type butterfly valve

Country Status (1)

Country Link
CN (1) CN107631037A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109780230A (en) * 2019-04-04 2019-05-21 杭州蓝圣阀门有限公司 A kind of antifreeze pressure release butterfly valve
CN114738502A (en) * 2022-04-27 2022-07-12 保一集团有限公司 Steam pipeline butterfly valve with pressure release function
CN115654196A (en) * 2022-12-28 2023-01-31 常州电站辅机股份有限公司 Intelligent electric valve body and control system based on Internet of things

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109780230A (en) * 2019-04-04 2019-05-21 杭州蓝圣阀门有限公司 A kind of antifreeze pressure release butterfly valve
CN114738502A (en) * 2022-04-27 2022-07-12 保一集团有限公司 Steam pipeline butterfly valve with pressure release function
CN114738502B (en) * 2022-04-27 2023-08-29 保一集团有限公司 Steam pipeline butterfly valve with pressure relief function
CN115654196A (en) * 2022-12-28 2023-01-31 常州电站辅机股份有限公司 Intelligent electric valve body and control system based on Internet of things

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Legal Events

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PB01 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20180126

WD01 Invention patent application deemed withdrawn after publication