CN206299802U - A kind of three eccentricity regulating butterfly valve - Google Patents
A kind of three eccentricity regulating butterfly valve Download PDFInfo
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- CN206299802U CN206299802U CN201621292668.9U CN201621292668U CN206299802U CN 206299802 U CN206299802 U CN 206299802U CN 201621292668 U CN201621292668 U CN 201621292668U CN 206299802 U CN206299802 U CN 206299802U
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Abstract
The utility model discloses a kind of three eccentricity regulating butterfly valve, including valve body, the body base is provided with valve seat, and the valve body top is provided with valve rod, and the valve rod is applied in the valve body and is fixedly connected with the valve plate being arranged in the valve body；Wherein, the valve plate includes the valve plate body and pressing plate that are fixedly connected, and elastic sealing element is provided between the valve plate body and the pressing plate, and the outer peripheral face of the elastic sealing element is drift angle identical scalene cone with the sealing surface of the valve seat；The valve plate edge outside be welded with can by the valve plate around the valve rod central rotation adjustment type deflector.The utility model simple structure, the circulation of valve small guide vane can be realized using deflector, and also respective degrees reduce noise.
Description
Technical field
The utility model is related to a kind of three eccentricity regulating butterfly valve.
Background technology
Because the monomer engineering of petrochemical enterprise is increasing, various pipe diameters constantly increase；Gas transmission oil pipeline
Continue to develop, the scale of hydraulic engineering expands day by day, the demand of heavy caliber control valve is continuously increased.Straight travel range control valve, ball
The product of more than the valve aperture DN300 such as valve is all very heavy, and butterfly valve size is small, lightweight, therefore sales volume gradually increases.In city
Under the promotion of field, control valve manufacturer updates butterfly valve structure, after having been occurred as soon as in the product that last century the eighties are introduced
, there are two eccentric-butterfly-valves later in seat type butterfly valve, three-eccentric-butterfly-valve is occurred in that after the nineties, along with valve positioner function is big
Big to improve, the unbalanced moments that substantially overcomes butterfly valve is big, stability is poor, the big shortcoming of leakage class low three, adds its body
Small, lightweight advantage is accumulated into global advantage, so in large bore valves field, butterfly valve is preferred product.
Traditional butterfly valve is normally manufactured as switch valve and uses, and during as regulating valve, butterfly valve is not easily adjustable due to small guide vane, general
The regulating ratio of logical butterfly valve typically only 20：1 or so (ball-shaped regulating valve is essentially 50：1), because butterfly valve is in small guide vane situation
Under, the pressure difference before valve and after valve is larger, is more also easy to produce cavitation.
Utility model content
The defect that the utility model purpose is directed to prior art presence provides a kind of three eccentricity regulating butterfly valve.
The utility model to achieve the above object, is adopted the following technical scheme that：A kind of three eccentricity regulating butterfly valve, including valve
Body, the body base is provided with valve seat, and the valve body top is provided with valve rod, the valve rod be applied in the valve body and with
The valve plate being arranged in the valve body is fixedly connected；Wherein, the valve plate includes the valve plate body and pressing plate that are fixedly connected, described
It is provided with elastic sealing element between valve plate body and the pressing plate, the sealing surface of the outer peripheral face of the elastic sealing element and the valve seat
It is drift angle identical scalene cone；The edge outside of the valve plate is welded with can be by the valve plate around the valve rod central rotation
Adjustment type deflector.
The beneficial effects of the utility model：The utility model simple structure, valve small guide vane can be realized using deflector
Circulation, also respective degrees reduce noise.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Specific embodiment
Shown in Fig. 1, it is related to a kind of three eccentricity regulating butterfly valve, including valve body 1, the bottom of the valve body 1 is provided with valve seat 2, institute
State the top of valve body 1 and be provided with valve rod 3, the valve rod 3 be applied in the valve body 1 and with the valve plate being arranged in the valve body 1
It is fixedly connected；Wherein, the valve plate includes the valve plate body 4 and pressing plate 5 that are fixedly connected, the valve plate body 4 and the pressing plate 5
Between be provided with elastic sealing element 6, the outer peripheral face of the elastic sealing element 6 is drift angle identical with the sealing surface of the valve seat 2
Scalene cone；The adjustment type that the edge outside of the valve plate is welded with can be by the valve plate around the central rotation of the valve rod 3 is led
Stream plate 7.
When valve opening, by control and regulation type deflector, the circulation of valve small guide vane can be realized using deflector
Amount, also respective degrees reduce noise.Three eccentricity regulating butterfly valve of the present utility model can be applied to high pressure, High Pressure Difference, want
Seeking the operating mode of VI grade of leakage class or No leakage can freely change orifice plate quantity, stage distance, throttle diameter according to operating mode.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all in this practicality
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (1)
1. a kind of three eccentricity regulating butterfly valve, it is characterised in that including valve body, the body base is provided with valve seat, the valve body
Top is provided with valve rod, and the valve rod is applied in the valve body and is fixedly connected with the valve plate being arranged in the valve body；Its
In, the valve plate includes the valve plate body and pressing plate that are fixedly connected, elasticity is provided between the valve plate body and the pressing plate close
Sealing, the outer peripheral face of the elastic sealing element is drift angle identical scalene cone with the sealing surface of the valve seat；The side of the valve plate
At edge outside be welded with can by the valve plate around the valve rod central rotation adjustment type deflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621292668.9U CN206299802U (en) | 2016-11-29 | 2016-11-29 | A kind of three eccentricity regulating butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621292668.9U CN206299802U (en) | 2016-11-29 | 2016-11-29 | A kind of three eccentricity regulating butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206299802U true CN206299802U (en) | 2017-07-04 |
Family
ID=59212433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621292668.9U Active CN206299802U (en) | 2016-11-29 | 2016-11-29 | A kind of three eccentricity regulating butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206299802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372997A (en) * | 2018-12-25 | 2019-02-22 | 博雷（中国）控制系统有限公司 | The moveable three-eccentric-butterfly-valve of valve seat |
-
2016
- 2016-11-29 CN CN201621292668.9U patent/CN206299802U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372997A (en) * | 2018-12-25 | 2019-02-22 | 博雷（中国）控制系统有限公司 | The moveable three-eccentric-butterfly-valve of valve seat |
| CN109372997B (en) * | 2018-12-25 | 2023-09-19 | 博雷（中国）控制系统有限公司 | Triple offset butterfly valve with movable valve seat |
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