CN107631042A - A kind of wear-resistant butterfly valve - Google Patents
A kind of wear-resistant butterfly valve Download PDFInfo
- Publication number
- CN107631042A CN107631042A CN201610564146.8A CN201610564146A CN107631042A CN 107631042 A CN107631042 A CN 107631042A CN 201610564146 A CN201610564146 A CN 201610564146A CN 107631042 A CN107631042 A CN 107631042A
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- China
- Prior art keywords
- valve
- valve rod
- flap
- valve body
- relief hole
- 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.)
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Abstract
The present invention provides a kind of wear-resistant 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, and the valve body lower portion is connected with the valve seat, filler is provided between the lower valve rod and the valve body, the filler is provided with seal washer, and the flap is provided with relief hole, pressure release block is provided with the relief hole, the flap back side is provided with divider, pressure release block described in the divider face.Have the beneficial effect that：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 got lodged in pressure release block on relief hole, when pressure is excessive in pipeline, relief hole can be opened, and medium is arranged to below pipeline via relief hole, and divider can prevent pressure release block from entering in pipeline.
Description
Technical field
The invention belongs to pipe control apparatus field, more particularly to a kind of wear-resistant 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, medium is arranged outwardly 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 wear-resistant 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, it is characterized in that, filler is provided between the lower valve rod and the valve body, the filler is provided with seal washer, and the flap is provided with relief hole, pressure release block is provided with the relief hole, the flap back side is provided with divider, pressure release block described in the divider face.
The section of the pressure release block is circle.
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 got lodged in pressure release block on relief hole, when pressure is excessive in pipeline, relief hole can be opened, and medium is arranged to below pipeline via relief hole, and divider can prevent pressure release block from entering in pipeline.
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.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, divider.
As shown in figure 1, flap 5 is located in valve body 1, and is connected with upper valve rod 3, lower valve rod 4, 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.Flap 5 is provided with relief hole, and pressure release block 8 is provided with relief hole, and the back side of flap 9 is provided with divider 9, the face pressure release block 8 of divider 9.Pressure release block 8 can be any geometry, and in the present embodiment, the section of pressure release block 8 is circle, and divider 9 is into rice font.Pressure release block 8 uses different model according to different pipelines using pressure requirements.Hole on divider 9 is less than the size of pressure release block 8, after pressure release block 8 is washed open by medium, can be blocked by divider 9.
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)
- A kind of 1. wear-resistant 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 flap is provided with relief hole, pressure release block is provided with the relief hole, the flap back side is provided with divider, pressure release block described in the divider face.
- 2. a kind of wear-resistant butterfly valve as claimed in claim 1, it is characterised in that the section of the pressure release block is circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610564146.8A CN107631042A (en) | 2016-07-18 | 2016-07-18 | A kind of wear-resistant butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610564146.8A CN107631042A (en) | 2016-07-18 | 2016-07-18 | A kind of wear-resistant butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107631042A true CN107631042A (en) | 2018-01-26 |
Family
ID=61112882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610564146.8A Pending CN107631042A (en) | 2016-07-18 | 2016-07-18 | A kind of wear-resistant butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107631042A (en) |
-
2016
- 2016-07-18 CN CN201610564146.8A patent/CN107631042A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180126 |