CN207034213U - A kind of double eccentric Butterfly valve with liner - Google Patents
A kind of double eccentric Butterfly valve with liner Download PDFInfo
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- CN207034213U CN207034213U CN201720976206.7U CN201720976206U CN207034213U CN 207034213 U CN207034213 U CN 207034213U CN 201720976206 U CN201720976206 U CN 201720976206U CN 207034213 U CN207034213 U CN 207034213U
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Abstract
A kind of double eccentric Butterfly valve with liner.Existing butterfly valve is solved without double eccentric fluorine lining butterfly valves, and common fluorine lining butterfly valve seals insecure problem.It includes valve body and valve plate, described valve body is provided with medium channel, described valve plate is provided with valve rod, the center of center deviation butterfly plate and the center of valve body of the valve rod, described valve plate has the first position and open the second place for causing medium channel conducting for causing that medium channel is closed during installation, the inwall of the valve body is provided with the first anti-corrosion layer, the outer surface of the valve plate is provided with the second anti-corrosion layer, the 3rd anti-corrosion layer is arranged with outside described valve rod, described valve interior wall protrudes above valve seat, the second anti-corrosion layer fits to form valve base sealing pair on the first anti-corrosion layer and valve plate at described valve seat, described the first anti-corrosion layer and the 3rd anti-corrosion layer fits.The advantages that the utility model also has simple in construction, easy to assembly, reliable in action, and service life is long.
Description
Technical field
It the utility model is related to a kind of valve, and in particular to a kind of double eccentric Butterfly valve with liner.
Background technology
Butterfly valve is called flap valve, is a kind of regulating valve simple in construction, and the switch available for low pressure pipeline medium controls.Butterfly
Valve refers to closure member flap or butterfly plate is disk, and a kind of valve of open and close is reached around valve shaft rotation, and valve can be used for
Control all kinds fluids such as empty gas and water, steam, various Korrosionsmediums, mud, oil product, liquid metal and radiating medium
Flowing, it is main on pipeline to play cut-out and throttling action.It is rotten in conveyings such as weight chemical industry, large chemical fertilizer, petroleum and petrochemical industry, smelting iron and steels
The occasion of corrosion fluid media (medium), metal valve is because can be corroded, it is clear that can not use, therefore in this kind of occasion, generally need
Use corrosion-resistant plastic lining valve.Existing Butterfly valve with liner causes at body base due to sealing corrosion barrier
Product hermeticity can be poor, and existing common practice is to increase a sealing shroud or seal, but the seal due to
Angle and reasons in structure are set so that axially and radially pressure is not high so that product sealing it is unreliable, and the life-span survey
Examination can only be to 10,000 times or so, and product will have leakage, and product service life is short.Double eccentric butterfly valves due to valve rod axle center both
Deviate butterfly plate center, also offset from body central so that difficulty is high during lining, and unreliable easily leakage is sealed after Fluorine-lined.And
Valve plate and valve rod junction are typically by bolt connection, and in practical work process, it is impossible to good actual package bolt
Junction so that part holds corrosion-vulnerable and influences service life.
The content of the invention
To solve the no double eccentric fluorine lining butterfly valves of existing butterfly valve in background technology, and the sealing of common fluorine lining butterfly valve can not
By the problem of, the utility model provides a kind of double eccentric Butterfly valve with liner.
The technical solution of the utility model is：A kind of double eccentric Butterfly valve with liner, including valve body and valve plate, on described valve body
Provided with medium channel, described valve plate is provided with valve rod, the center of center deviation butterfly plate and the center of valve body of the valve rod, institute
The valve plate stated has the first position and open the second place for causing medium channel conducting for causing that medium channel is closed during installation,
The inwall of the valve body is provided with the first anti-corrosion layer, and the outer surface of the valve plate is provided with the second anti-corrosion layer, described valve
It is arranged with the 3rd anti-corrosion layer outside bar, described valve interior wall protrudes above valve seat, the first anti-corrosion layer and valve at described valve seat
The second anti-corrosion layer fits to form valve base sealing pair on plate, and the first described anti-corrosion layer and the 3rd anti-corrosion layer fit.
As a kind of improvement of the present utility model, described valve seat and the valve plate place of fitting are inclined-plane.
As further improvement of the utility model, the second described anti-corrosion layer inserts first on medium inflow direction
Between anti-corrosion layer and the 3rd anti-corrosion layer.
As further improvement of the utility model, described valve body is provided with pressing plate and packing seal, described pressing plate
Offseted with packing seal and packing seal is pressed in valve body.
As further improvement of the utility model, described packing seal is located at the first anti-corrosion layer, the 3rd corrosion-resistant
Fitted between layer and with the first anti-corrosion layer, the 3rd anti-corrosion layer.
As further improvement of the utility model, described valve plate is connected with valve rod by bolt, described bolt
It is wrapped in the second anti-corrosion layer.
As further improvement of the utility model, described bolt is sheathed on valve plate, valve rod through the second anti-corrosion layer
Interior, second anti-corrosion layer is wrapped in valve plate, outside bolt.
As further improvement of the utility model, the second described anti-corrosion layer is integrally formed using PO materials.
As further improvement of the utility model, described valve seat and valve body are integral type structure.
The beneficial effects of the utility model are, by first, second and third anti-corrosion layer respectively by valve seat, valve plate, valve body and Jie
Matter channel partition is opened, and avoids dielectric damages valve body, while pass through the concrete structure of first, second and third anti-corrosion layer so that valve seat with
Valve plate sealed reliable, valve body protrude above valve seat and set valve base sealing pair so that product is formed using first and second anti-corrosion layer
Soft seal, while be supported by valve seat and valve plate so that product strength is high, first and second it is corrosion-resistant do not allow it is easy to wear,
Good sealing effect, service life length.The utility model also has simple in construction, easy to assembly, reliable in action, service life length etc.
Advantage.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment.
In figure, 1, valve body；11st, the first anti-corrosion layer；2nd, valve plate；21st, the second anti-corrosion layer；3rd, medium channel；4th, valve rod；
41st, the 3rd anti-corrosion layer；5th, valve seat；51st, inclined-plane；6th, pressing plate；7th, packing seal；8th, bolt.
Embodiment
The utility model embodiment is described further below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of double eccentric Butterfly valve with liner, including valve body 1 and valve plate 2, described valve body 1 lead to provided with medium
Road 3, described valve plate 2 is provided with valve rod 4, the center of the center deviation butterfly plate of the valve rod 4 and the center of valve body 1, described
Valve plate 2 has the first position and open the second place for make it that medium channel 3 turns on for causing that medium channel 3 is closed during installation,
The inwall of the valve body 1 is provided with the first anti-corrosion layer 11, and the outer surface of the valve plate 2 is provided with the second anti-corrosion layer 21, institute
It is arranged with the 3rd anti-corrosion layer 41 outside the valve rod 4 stated, the described inwall of valve body 1 protrudes above valve seat 5, first at described valve seat 5
Second anti-corrosion layer 21 fits to form the sealing pair of valve seat 5 on anti-corrosion layer 11 and valve plate 2, the described He of the first anti-corrosion layer 11
3rd anti-corrosion layer 41 fits.Specifically, described valve seat 5 and valve body 1 are integral type structure.Described valve seat and valve body
It is that metal material is integrally machined shaping, the first described anti-corrosion layer is wrapped in outside valve interior wall and valve seat.The utility model
Valve seat, valve plate, valve body and medium channel are separated respectively by first, second and third anti-corrosion layer, avoid dielectric damages valve body,
Pass through the concrete structure of first, second and third anti-corrosion layer simultaneously so that valve seat and valve plate sealed reliable, valve body protrude above valve seat simultaneously
Valve base sealing pair is set so that product is forming soft seal using first and second anti-corrosion layer, while is carried out by valve seat and valve plate
Support so that product strength is high, first and second it is corrosion-resistant do not allow easy to wear, good sealing effect, service life is grown.This practicality
It is new that also there is simple in construction, easy to assembly, reliable in action, the advantages that service life is long.
Described valve seat 5 and the place of fitting of valve plate 2 are inclined-plane 51.By inclined-plane seal product hermeticity can get well and valve
Plate is opened and closed all than faster so that product response is fast, reverse good seal performance.Specifically, the second described corrosion resistant
Erosion layer 21 is inserted on medium inflow direction between the first anti-corrosion layer 11 and the 3rd anti-corrosion layer 41.Described second is corrosion-resistant
It is provided between the first anti-corrosion layer 11 of insertion and the 3rd anti-corrosion layer 41 so that the second anti-corrosion layer is secondary with the in valve base sealing
One anti-corrosion layer is engaged to form the T-shaped sealing surface of inverted class, sealed reliable.
Described valve body 1 is provided with pressing plate 6 and packing seal 7, and described pressing plate 6 offsets with packing seal 7 and by filler
Sealing 7 is pressed in valve body 1.Specifically, described packing seal 7 located at the first anti-corrosion layer 11, the 3rd anti-corrosion layer 41 it
Between and fit with the first anti-corrosion layer 11, the 3rd anti-corrosion layer 41.The setting of packing seal avoids medium from being leaked along valve rod, together
When packing seal fitted respectively with the first anti-corrosion layer, the 3rd anti-corrosion layer so that sealed reliable.
Described valve plate 2 is connected with valve rod 4 by bolt 8, and described bolt 8 is wrapped in the second anti-corrosion layer 21.
Specifically, described bolt 8 is sheathed on valve plate 2, in valve rod 4 through the second anti-corrosion layer 21, second anti-corrosion layer 21
It is wrapped in valve plate 2, outside bolt 8.In particular, the second described anti-corrosion layer 21 is integrally formed using PO materials.PO expects again
Claim PO materials or PO plastics, be that polyolefin copolymer English name is polyolefin（Abbreviation PO）.Using the processing of PO materials
Into the second anti-corrosion layer, after can serving as a contrast valve plate and valve rod respectively, when butterfly valve is installed, through hole can be set to be worn for bolt
Cross, expect to mend through hole after valve plate and valve rod install in medium channel, then with PO, avoid being corroded at bolt connection
Properties of product are influenceed, considerably increase the life-span of product.
In the description of the invention, it is necessary to explanation, term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right
The limitation of the present invention.In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint are relative
Importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；
Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, can be with
It is the connection of two element internals.For the ordinary skill in the art, it can understand that above-mentioned term exists with concrete condition
Concrete meaning in the present invention.In addition, in the description of the invention, unless otherwise indicated, " multiple " are meant that two or two
More than individual.
Every technical staff's notice：Although the utility model describes according to above-mentioned embodiment, this
The invention thought of utility model is not limited to that utility model, any repacking with inventive concept, will all include this specially
In sharp scope of patent protection.
Claims (9)
1. a kind of double eccentric Butterfly valve with liner, including valve body（1）And valve plate（2）, it is characterised in that:Described valve body（1）It is provided with
Medium channel（3）, described valve plate（2）It is provided with valve rod（4）, the valve rod（4）Center deviation butterfly plate center and valve body
（1）Center, described valve plate（2）Cause medium channel during with installation（3）The first position of closing and opening cause medium
Passage（3）The second place of conducting, the valve body（1）Inwall be provided with the first anti-corrosion layer（11）, the valve plate（2）It is outer
Surface is provided with the second anti-corrosion layer（21）, described valve rod（4）It is arranged with the 3rd anti-corrosion layer outside（41）, described valve body
（1）Inwall protrudes above valve seat（5）, described valve seat（5）Locate the first anti-corrosion layer（11）And valve plate（2）Upper second anti-corrosion layer
（21）Fit to form valve base sealing pair, the first described anti-corrosion layer（11）With the 3rd anti-corrosion layer（41）Fit.
A kind of 2. double eccentric Butterfly valve with liner according to claim 1, it is characterised in that described valve seat（5）With valve plate（2）
Fit and locate to be inclined-plane（51）.
A kind of 3. double eccentric Butterfly valve with liner according to claim 1, it is characterised in that the second described anti-corrosion layer（21）
The first anti-corrosion layer is inserted on medium inflow direction（11）With the 3rd anti-corrosion layer（41）Between.
A kind of 4. double eccentric Butterfly valve with liner according to claim 1, it is characterised in that described valve body（1）It is provided with pressing plate
（6）And packing seal（7）, described pressing plate（6）With packing seal（7）Offset and by packing seal（7）It is pressed in valve body（1）It is interior.
A kind of 5. double eccentric Butterfly valve with liner according to claim 4, it is characterised in that described packing seal（7）Located at
One anti-corrosion layer（11）, the 3rd anti-corrosion layer（41）Between and with the first anti-corrosion layer（11）, the 3rd anti-corrosion layer（41）It is affixed
Close.
A kind of 6. double eccentric Butterfly valve with liner according to claim 1, it is characterised in that described valve plate（2）With valve rod（4）
Pass through bolt（8）It is connected, described bolt（8）It is wrapped in the second anti-corrosion layer（21）It is interior.
A kind of 7. double eccentric Butterfly valve with liner according to claim 6, it is characterised in that described bolt（8）It is resistance to through second
Corrosion layer（21）It is sheathed on valve plate（2）, valve rod（4）It is interior, second anti-corrosion layer（21）It is wrapped in valve plate（2）, bolt（8）
Outside.
A kind of 8. double eccentric Butterfly valve with liner according to claim 1, it is characterised in that the second described anti-corrosion layer（21）
It is integrally formed using PO materials.
A kind of 9. double eccentric Butterfly valve with liner according to claim 1, it is characterised in that described valve seat（5）With valve body（1）
For integral type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720976206.7U CN207034213U (en) | 2017-08-07 | 2017-08-07 | A kind of double eccentric Butterfly valve with liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720976206.7U CN207034213U (en) | 2017-08-07 | 2017-08-07 | A kind of double eccentric Butterfly valve with liner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207034213U true CN207034213U (en) | 2018-02-23 |
Family
ID=61474454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720976206.7U Active CN207034213U (en) | 2017-08-07 | 2017-08-07 | A kind of double eccentric Butterfly valve with liner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207034213U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397557A (en) * | 2018-05-03 | 2018-08-14 | 江苏通达船用阀泵有限公司 | Double eccentric flange Worm type Hand-operated butterfly valves peculiar to vessel |
| CN114542777A (en) * | 2022-02-25 | 2022-05-27 | 山东中力高压阀门股份有限公司 | Corrosion-resistant valve |
-
2017
- 2017-08-07 CN CN201720976206.7U patent/CN207034213U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397557A (en) * | 2018-05-03 | 2018-08-14 | 江苏通达船用阀泵有限公司 | Double eccentric flange Worm type Hand-operated butterfly valves peculiar to vessel |
| CN114542777A (en) * | 2022-02-25 | 2022-05-27 | 山东中力高压阀门股份有限公司 | Corrosion-resistant valve |
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