CN207034247U - A kind of valve seat improved structure of cryogenic ball valve - Google Patents
A kind of valve seat improved structure of cryogenic ball valve Download PDFInfo
- Publication number
- CN207034247U CN207034247U CN201720940486.6U CN201720940486U CN207034247U CN 207034247 U CN207034247 U CN 207034247U CN 201720940486 U CN201720940486 U CN 201720940486U CN 207034247 U CN207034247 U CN 207034247U
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- Prior art keywords
- valve
- seat
- flap
- dividing plate
- valve seat
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Abstract
The utility model discloses a kind of valve seat improved structure of cryogenic ball valve, including left valve barrel, right valve barrel, elastic seat, fixed valve base.Blind hole is offered on the left valve barrel, the elastic seat is installed in the blind hole, wherein, elastic seat includes cylindrical spring, dividing plate, butterfly spring complex, seal, the cylindrical spring is arranged on the left bottom of blind hole, the dividing plate is arranged on the right side of cylindrical spring, and the butterfly spring complex is arranged on the right side of dividing plate, and the seal is arranged on the right side of butterfly spring complex and is in close contact with the flap.The utility model, which is provided with elastic seat in flap and valve seal contact position and is fixed the structure of valve seat, to be combined, elastic seat is made up of cylindrical spring, dividing plate, butterfly spring complex, sealing bluk recombination, the sealing between flap and valve seat is effectively automatically adjusted using secondary shock-absorbing damping principle, the abrasion of traditional valve seat is reduced significantly, extends the service life of valve seat.
Description
Technical field
It the utility model is related to a kind of ball valve, the valve seat more particularly on ball valve.
Background technology
At present, traditional cryogenic ball valve is typically to drive spheroid to turn using manual or Pneumatic rotary valve rod, the rotation of valve rod
90 ° are moved to realize being turned on and off for valve, left and right valve seat is mostly soft seal material（Such as PTFE, PCTFE, NYLON etc.）, its is close
Envelope relies primarily on the compression of left and right valve seat to seal, and is assembled in the case of normal temperature, controls the compression of valve
Amount；And under the actual condition of low temperature, each parts of ball valve due to the principle expanded with heat and contract with cold, easily cause ball valve swollen dead or
The problem of person leaks；In addition, cryogenic ball valve is being opened, fretting wear be present in closing process, the valve seat of soft sealing material more holds
It is easy to wear, there is gap, and cause valve leak.
Utility model content
The shortcomings that the purpose of this utility model is to overcome prior art, existing cryogenic ball valve valve seat construction is improved, makes it
Good sealing effect simultaneously adapts to low-temperature working environment.
The utility model is realized by the following technical solutions：
A kind of valve seat improved structure of cryogenic ball valve, including,
Left valve barrel；
Right valve barrel；
The flap being arranged between left valve barrel and right valve barrel, it is provided with the sealing surface that the left valve barrel is in contact with flap
Elastic seat, fixed valve base is provided with the sealing surface that the right valve barrel is in contact with flap；
It is characterized in that：
Blind hole is offered on the left valve barrel, the elastic seat is installed in the blind hole, wherein, elastic seat includes
Cylindrical spring, dividing plate, butterfly spring complex, seal, the cylindrical spring are arranged on the left bottom of blind hole, the dividing plate
The right side of cylindrical spring is arranged on, the butterfly spring complex is arranged on the right side of dividing plate, and the seal is arranged on butterfly
The right side of spring complex is simultaneously in close contact with the flap.
Further, the butterfly spring complex includes disk spring and the elastomeric overmold being coated on the outside of disk spring
Layer.
Further, sleeve is nested with the blind hole, the elastic seat is installed in the sleeve.The utility model
Beneficial effect be：
The utility model, which is provided with elastic seat in flap and valve seal contact position and is fixed the structure of valve seat, to be combined, bullet
Property valve seat by cylindrical spring, dividing plate, butterfly spring complex, sealing bluk recombination form, it is effective using secondary shock-absorbing damping principle
The sealing between flap and valve seat is automatically adjusted, reduces the abrasion of traditional valve seat significantly, extends the service life of valve seat.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the floating valve seat structural representation described in Fig. 1.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is described further to the utility model.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining this
Utility model, it is not used to limit the utility model.
As depicted in figs. 1 and 2, present embodiment discloses a kind of valve seat improved structure of cryogenic ball valve, including, left valve barrel 1；
Right valve barrel 2；The flap 4 being arranged between left valve barrel 1 and right valve barrel 2, at the sealing surface that the left valve barrel 1 is in contact with flap 4
Elastic seat 5 is provided with, fixed valve base 3 is provided with the sealing surface that the right valve barrel 2 is in contact with flap 4.
Blind hole 6 is offered on the left valve barrel 1, sleeve 51 is equiped with the blind hole 6, the elastic seat 5 is installed in
In the sleeve 51, wherein, elastic seat 5 includes cylindrical spring 52, dividing plate 53, butterfly spring complex, seal 56, described
Cylindrical spring 52 is arranged on the left bottom of blind hole 6, and the dividing plate 53 is arranged on the right side of cylindrical spring 52, the butterfly spring
Complex is arranged on the right side of dividing plate 53, the seal 56 be arranged on the right side of butterfly spring complex and with the flap 4
It is in close contact.
In the present embodiment, the butterfly spring complex includes disk spring 54 and is coated on the bullet in the outside of disk spring 54
Property clad 55.
The utility model effectively automatically adjusts the sealing between flap and valve seat using secondary shock-absorbing damping principle, significantly
The abrasion of traditional valve seat is reduced, extends the service life of valve seat.
Above-described embodiment is preferred embodiment of the present utility model, is not the limit to technical solutions of the utility model
System, as long as the technical scheme that can be realized without creative work on the basis of above-described embodiment, is regarded as falling into
In the rights protection scope of the utility model patent.
Claims (3)
1. a kind of valve seat improved structure of cryogenic ball valve, including,
Left valve barrel（1）；
Right valve barrel（2）；
It is arranged on left valve barrel（1）With right valve barrel（2）Between flap（4）, the left valve barrel（1）With flap（4）What is be in contact is close
Elastic seat is provided with front cover（5）, the right valve barrel（2）With flap（4）Fixed valve base is provided with the sealing surface being in contact
（3）；
It is characterized in that：
The left valve barrel（1）On offer blind hole（6）, the elastic seat（5）It is installed in the blind hole（6）In, wherein, elasticity
Valve seat（5）Including cylindrical spring（52）, dividing plate（53）, butterfly spring complex, seal（56）, the cylindrical spring（52）If
Put in blind hole（6）Left bottom, the dividing plate（53）It is arranged on cylindrical spring（52）Right side, the butterfly spring complex
It is arranged on dividing plate（53）Right side, the seal（56）Be arranged on the right side of butterfly spring complex and with the flap（4）
It is in close contact.
2. the valve seat improved structure of a kind of cryogenic ball valve according to claim 1, it is characterised in that the butterfly spring is answered
Zoarium includes disk spring（54）And it is coated on disk spring（54）The elastomeric overmold layer in outside（55）.
A kind of 3. valve seat improved structure of cryogenic ball valve according to claim 1 or 2, it is characterised in that the blind hole（6）
In be nested with sleeve（51）, the elastic seat（5）It is installed in the sleeve（51）In.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720940486.6U CN207034247U (en) | 2017-07-31 | 2017-07-31 | A kind of valve seat improved structure of cryogenic ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720940486.6U CN207034247U (en) | 2017-07-31 | 2017-07-31 | A kind of valve seat improved structure of cryogenic ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207034247U true CN207034247U (en) | 2018-02-23 |
Family
ID=61463338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720940486.6U Active CN207034247U (en) | 2017-07-31 | 2017-07-31 | A kind of valve seat improved structure of cryogenic ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207034247U (en) |
-
2017
- 2017-07-31 CN CN201720940486.6U patent/CN207034247U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |