CN204692605U - A kind of butterfly valve - Google Patents
A kind of butterfly valve Download PDFInfo
- Publication number
- CN204692605U CN204692605U CN201520310048.2U CN201520310048U CN204692605U CN 204692605 U CN204692605 U CN 204692605U CN 201520310048 U CN201520310048 U CN 201520310048U CN 204692605 U CN204692605 U CN 204692605U
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- China
- Prior art keywords
- valve
- butterfly
- plate
- valve body
- angle demodulator
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- Expired - Fee Related
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- Lift Valve (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
A kind of butterfly valve, it relates to valve technology field, it comprises valve body, valve rod, valve plate, handle, angle demodulator, pressure measuring tie-in, silastic-layer, described valve inner is provided with valve plate, valve plate is connected by the angle demodulator of valve rod with valve body outside, the upper end of angle demodulator is connected with handle, and the periphery of valve body is provided with pressure measuring tie-in, and the periphery of valve plate is coated with silastic-layer.A kind of butterfly valve described in the utility model can detect the through-flow pressure of medium, decreases the replacing number of times of Sealing, enhances sealing effect, and it is simple that the utility model has structure, arranges rationally, the advantages such as fabricating cost is low.
Description
Technical field
The utility model relates to valve technology field, is specifically related to a kind of butterfly valve.
Background technique
Butterfly valve is Flap valve again, is a kind of modulating valve, can be used for the butterfly valve of the switch control rule of low pressure pipeline medium, refers to that closure member (flap or butterfly plate) is disk, rotates a kind of valve reaching open and close around valve shaft.Valve can be used for the flowing controlling all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.On pipeline, main rising is cut off and throttling action.Butterfly valve open-shut device is a discoidal butterfly plate, rotates in valve body around the axis of himself, thus reaches the object opening and closing or regulate.Form primarily of valve body, valve rod, butterfly plate and seal ring.Valve body is cylindrical, and axial length is short, built-in butterfly plate.Butterfly plate is driven by valve rod, if turn over 90 °, just can complete and once open and close.Change the deflection angle of butterfly plate, get final product the flow of control media.
Applying working condition and medium: butterfly valve is applicable to carry on the pipeline of various corrosivity, non-corrosive fluids medium, for regulating and block the flowing of medium in producer, coal gas, rock gas, liquefied petroleum gas (LPG), town gas, air, chemical industry smelting and the engineering system such as generation environment-friendly, building water supply and drainage.
Butterfly valve refers to that closure member (flap or butterfly plate) is disk, rotates a kind of valve reaching open and close around valve shaft, and on pipeline, main rising is cut off and throttling action.Butterfly valve open-shut device is a discoidal butterfly plate, rotates in valve body around the axis of himself, thus reaches the object opening and closing or regulate.Butterfly valve standard-sized sheet is normally less than 90 ° to complete shut-down, and butterfly valve and butterfly bar itself do not have self-lock ability, in order to the location of butterfly plate, will install worm speed reducer additional on valve rod.Adopt worm speed reducer, butterfly plate not only can be made to have self-lock ability, make butterfly plate stop on arbitrary position, the operating characteristics of valve can also be improved.The feature of the special butterfly valve of industry can be high temperature resistant, and applicable pressure range is also higher, and valve inside nominal diameter is large, and valve body adopts carbon steel manufacture, and the seal ring of valve plate adopts metal ring to replace rubber ring.Large high-temperature butterfly valve adopts Plate Welding manufacture, is mainly used in cigarette air channel and the gas pipe line of high temperature media.1, butterfly valve has that structure is simple, volume is little, lightweight, material consumption economizes, installation dimension is little, and switch is rapid, 90 ° of reciprocating rotatings, the features such as driving moment is little, for blocking, connecting, regulate the medium in pipeline, there is good fluid handling properties and close sealability.2, butterfly valve can transport mud, accumulates liquid minimum in pipeline opening.Under low pressure, good sealing can be realized.Adjusting function is good.3, the airflow design of butterfly plate, makes fluid impedance losses little, is a kind of energy-saving product.4, valve rod is through rod structure, through quenching with Subsequent tempering, has good comprehensive mechanical property and corrosion resistance, resistance to marring.When butterfly valve opens and closes, valve rod only rotates and does not do lifting operation, and the filler of valve rod is survivable, and sealing is reliable.Fix with butterfly plate taper pin, overhanging end is the design of erosion control removing from mould, in order to avoid valve rod collapses when valve rod and butterfly plate joint surprisingly rupture.5, Placement has Flange joint, connects folder folder connection, butt welding connection and lug.
The butterfly valve seal performance of prior art is bad, and can not the through-flow pressure of measuring media.
Model utility content
The purpose of this utility model is defect for prior art and deficiency, provides a kind of structure simple, reasonable in design, easy to use.
For achieving the above object, the technical solution adopted in the utility model is: it comprises valve body, valve rod, valve plate, handle, angle demodulator, pressure measuring tie-in, silastic-layer, described valve inner is provided with valve plate, valve plate is connected by the angle demodulator of valve rod with valve body outside, the upper end of angle demodulator is connected with handle, the periphery of described valve body is provided with pressure measuring tie-in, and the periphery of valve plate is coated with silastic-layer.
During the utility model operation, pressure measuring tie-in is connected with pressure gauge, observes the through-flow pressure of valve body interior media, and when pressure is excessive, check the sealing state of valve body and valve plate, silastic-layer has waterproof anti-corrosion performance, improves sealability.
After adopting said structure, the beneficial effects of the utility model are: a kind of butterfly valve described in the utility model can detect the through-flow pressure of medium, decrease the replacing number of times of Sealing, enhance sealing effect, it is simple that the utility model has structure, arranges rationally, the advantages such as fabricating cost is low.
Accompanying drawing explanation
Fig. 1 is the utility model structural drawing.
Description of reference numerals:
1, valve body; 2, valve rod; 3, valve plate; 4, handle; 5, angle demodulator; 6, pressure measuring tie-in; 7, silastic-layer.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Referring to as shown in Figure 1, this embodiment adopts following technological scheme: it comprises valve body 1, valve rod 2, valve plate 3, handle 4, angle demodulator 5, pressure measuring tie-in 6, silastic-layer 7, described valve body 1 inside is provided with valve plate 3, valve plate 3 is connected by the angle demodulator 5 of valve rod 2 with valve body 1 outside, the upper end of angle demodulator 5 is connected with handle 4, the periphery of described valve body 1 is provided with pressure measuring tie-in 6, and the periphery of valve plate 3 is coated with silastic-layer 7.
During the operation of this embodiment, pressure measuring tie-in 6 is connected with pressure gauge, observes the through-flow pressure of valve body 1 interior media, and when pressure is excessive, check the sealing state of valve body 1 and valve plate 3, silastic-layer 7 has waterproof anti-corrosion performance, improves sealability.
After adopting said structure, the beneficial effect of this embodiment for: a kind of butterfly valve described in this embodiment can detect the through-flow pressure of medium, decrease the replacing number of times of Sealing, enhance sealing effect, it is simple that this embodiment has structure, arrange rationally, the advantages such as fabricating cost is low.
The above is only in order to illustrate the technical solution of the utility model and unrestricted, other amendment that those of ordinary skill in the art make the technical solution of the utility model or equivalently to replace, only otherwise depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of right of the present utility model.
Claims (1)
1. a butterfly valve, it comprises valve body (1), valve rod (2), valve plate (3), handle (4), angle demodulator (5), described valve body (1) inside is provided with valve plate (3), valve plate (3) is connected by the angle demodulator (5) that valve rod (2) is outside with valve body (1), the upper end of angle demodulator (5) is connected with handle (4), it is characterized in that it also comprises pressure measuring tie-in (6), silastic-layer (7), the periphery of described valve body (1) is provided with pressure measuring tie-in (6), the periphery of valve plate (3) is coated with silastic-layer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520310048.2U CN204692605U (en) | 2015-05-14 | 2015-05-14 | A kind of butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520310048.2U CN204692605U (en) | 2015-05-14 | 2015-05-14 | A kind of butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204692605U true CN204692605U (en) | 2015-10-07 |
Family
ID=54232903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520310048.2U Expired - Fee Related CN204692605U (en) | 2015-05-14 | 2015-05-14 | A kind of butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204692605U (en) |
-
2015
- 2015-05-14 CN CN201520310048.2U patent/CN204692605U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20160514 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |