CN207750504U - Welded type three eccentricity low temperature aluminium butterfly valve - Google Patents
Welded type three eccentricity low temperature aluminium butterfly valve Download PDFInfo
- Publication number
- CN207750504U CN207750504U CN201820035929.1U CN201820035929U CN207750504U CN 207750504 U CN207750504 U CN 207750504U CN 201820035929 U CN201820035929 U CN 201820035929U CN 207750504 U CN207750504 U CN 207750504U
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- valve
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- gland
- low temperature
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Abstract
The utility model discloses welded type three eccentricity low temperature aluminium butterfly valve, including valve body, valve plate, valve deck and valve rod, the valve rod top is disposed with axle sleeve, lower Packing seat, filler, upper Packing seat, gland；The valve deck is set in outside valve rod, and the valve deck bottom end is equipped with gland, and the gland is fixedly connected with the valve body by bolt；The valve plate is fixed on by pin connection on valve rod, is mounted in valve body；The valve body is that aluminium forging is integrally formed, it is provided with valve seat on the valve interior wall, the valve seat both sides are equipped with sealing ring, the valve seat outer side seal circle washer, single layer wave spring, trim ring, middle load baffle ring, flat shim compress limit, annular groove is additionally provided in the valve body, the middle load baffle ring and flat shim are arranged in the annular groove to limit the working condition of single layer wave spring.The utility model is simple in structure, and sealing structure is easy for installation, and sealing effect is good, improves valve body service life.
Description
【Technical field】
The utility model is related to butterfly valve equipment technical fields, and in particular to a kind of welded type three eccentricity low temperature aluminium butterfly valve.
【Background technology】
Butterfly valve refers to the butterfly plate that closure member is disc-shape, and butterfly plate is rotated around the axis of valve rod to be turned on and off to reach
A kind of valve, cut-out and throttling action are mainly played on pipeline.With the development of industrial technology, common butterfly valve has met not
Industrial demand, low temperature aluminium butterfly valve are suitable for the flow of low-temp low-pressure air or other low-pressure gases, pressure control, extensively
Applied to the cryogenic application of the industrial departments such as chemical industry, space division, food, medicine, realize automatic adjustment to industrial processes and
Remote control acts on.Existing low temperature aluminium butterfly valve seat is made of multilayer stainless-steel sheet and graphite compacting, main problem
It is：Under low-temperature condition, valve seat can generate deformation because of the temperature difference, and to make valve plate and valve seat offset, the sealing pair to be formed also generates position
It moves, causes the sealing performance of sealing pair bad.
【Utility model content】
The purpose of this utility model is in view of the problems of the existing technology, to provide a kind of welded type three of good seal performance
Eccentric low temperature aluminium butterfly valve.
In order to achieve the above object, the utility model provides following technical solution：Welded type three eccentricity low temperature aluminium butterfly valve,
Including valve body, valve plate, valve deck and valve rod, it is characterised in that：The valve rod top is disposed with axle sleeve, lower Packing seat, fills out
Material, upper Packing seat, gland, the gland are bolted on the valve deck；The valve deck is set in valve rod
Outside, the valve deck bottom end is equipped with gland, and the gland is fixedly connected with the valve body by bolt；The valve plate is fixed by pin connection
In on valve rod, it is mounted in valve body；The valve body is that aluminium forging is integrally formed, and is provided with valve seat on the valve interior wall, institute
It states valve seat both sides and is equipped with sealing ring, the valve seat outer side seal circle washer, single layer wave spring, trim ring, middle load baffle ring, plain cushion
Piece compresses limit, and annular groove is additionally provided in the valve body, and the middle load baffle ring and flat shim are arranged in the annular groove
It is interior limiting the working condition of single layer wave spring.
Preferably, there is welding groove at the both ends of the valve body.
Preferably, the valve seat is process by single layer stainless steel.
Preferably, the valve deck is extended type structure.
The beneficial effects of the utility model：Valve body is integrally formed using aluminium forging, compared with stainless steel body, volume
It is small, it is light-weight, deform smaller under worst cold case；Valve seat is process by single layer stainless steel, and technique simplifies, and sealing performance is not
Become, production cost reduces；The sealing ring being equipped on the outside of valve seat is forced tightly by what single layer wave spring deformation generated, and is opened on valve body
Slot is limited equipped with middle load baffle ring, and sealing ring and valve seat fitted seal is made to use, to compensate valve plate and valve seat offsets shape
At the displacement that is generated by the temperature difference of sealing pair, so that sealing pair is in good sealing state always in low temperature environment.This practicality is new
Type is simple in structure, and sealing structure is easy for installation, and sealing effect is good, improves valve body service life.
【Description of the drawings】
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the valve seat close-up schematic view of the utility model；
Fig. 3 is the welding groove enlarged diagram of the valve body of the utility model；
Marginal data：Valve body 1, valve seat 11, sealing ring 12, washer 121, single layer wave spring 122, trim ring 123, middle load baffle ring
124, flat shim 125, annular groove 13, welding groove 14, valve plate 2, pin 21, valve deck 3, gland 31, valve rod 4, axle sleeve 41, under fill out
Backing strap 42, filler 43, upper Packing seat 44, gland 45.
Specific implementation mode
Below with reference to the embodiments and with reference to the accompanying drawing being described in further detail to the technical solution of the utility model.
Refering to fig. 1-2, welded type three eccentricity low temperature aluminium butterfly valve, including valve body 1, valve plate 2, valve deck 3 and valve rod 4, it is described
4 top of valve rod is disposed with axle sleeve 41, lower Packing seat 42, filler 43, upper Packing seat 44, gland 45, the filler pressure
Lid 45 is bolted on the valve deck 3；The valve deck 3 is set in outside valve rod 4, and 3 bottom end of the valve deck is equipped with gland 31,
The gland 31 is fixedly connected by bolt with valve body 1；The valve plate 2 is connected and fixed on by pin 21 on valve rod 4, and valve is mounted on
In body 1；The valve body 1 is that aluminium forging is integrally formed, and valve seat 11,11 both sides of the valve seat are provided on 1 inner wall of the valve body
It is equipped with sealing ring 12,11 washer 121 of outer side seal circle 12 of the valve seat, single layer wave spring 122, trim ring 123, middle load baffle ring
124, flat shim 125 compresses limit, and annular groove 13, the middle load baffle ring 124 and flat shim are additionally provided in the valve body 1
125 are arranged in the annular groove 13 to limit the working condition of single layer wave spring 122.
In the present embodiment, there is welding groove 14 at the both ends of the valve body 1.It can directly be welded with pipeline by welding groove 14
It connects connected.
In the present embodiment, the valve seat 11 is process by single layer stainless steel.Technique simplifies, and sealing effect performance is constant.
In the present embodiment, the valve deck 3 is extended type structure.The valve deck of lengthening has insulation effect, and being capable of basis
The different valve deck length of the different designs of operating mode.
Valve seat installation process is in the utility model：Successively 11 inner seal circle 12 of valve seat, valve seat 11,11 outside of valve seat
Sealing ring 12 and washer 121, single layer wave spring 122 are fitted into valve body 1, and sealing ring 12 is fitted close with valve seat 11, then by special
The step of trim ring 123 is utilized with tool, compresses single layer wave spring 122, and then load is kept off in valve body annular groove 13 is fitted into successively
Circle 124 and flat shim 125, after unclamping specific purpose tool, single layer wave spring 122 is limited to working condition, and valve seat 11 is just pressed
It is tight.
The utility model valve body 1 is integrally formed using aluminium forging, small compared with stainless steel body, light-weight,
Smaller is deformed under worst cold case；Valve seat 11 is process by single layer stainless steel, and technique simplifies, and sealing performance is constant, production cost
It reduces；11 outside of valve seat is equipped with sealing ring 12 and is forced tightly by what 122 deformation of single layer wave spring generated, during fluting is equipped on valve body 1
Load baffle ring 124 is limited, and so that sealing ring 12 and 11 fitted seal of valve seat is used, is offseted to compensate valve plate 2 and valve seat 11
The displacement that the sealing pair of formation is generated by the temperature difference makes sealing pair be in good sealing state always in low temperature environment.
Above-described embodiment is the explanation to the utility model, is not the restriction to the utility model, any to this practicality
Scheme after novel simple switched belongs to the scope of protection of the utility model.
Claims (4)
1. welded type three eccentricity low temperature aluminium butterfly valve, including valve body, valve plate, valve deck and valve rod, it is characterised in that：On the valve rod
Portion is disposed with axle sleeve, lower Packing seat, filler, upper Packing seat, gland, and the gland is bolted on institute
It states on valve deck；The valve deck is set in outside valve rod, and the valve deck bottom end is equipped with gland, and the gland is fixed by bolt and valve body
Connection；The valve plate is fixed on by pin connection on valve rod, is mounted in valve body；The valve body is that aluminium forging is integrally formed,
It is provided with valve seat on the valve interior wall, sealing ring, the valve seat outer side seal circle pad are equipped with inside and outside the valve seat
Circle, single layer wave spring, trim ring, middle load baffle ring, flat shim compress limit, and annular groove is additionally provided in the valve body, is born in described
Lotus baffle ring and flat shim are arranged in the annular groove to limit the working condition of single layer wave spring.
2. welded type three eccentricity low temperature aluminium butterfly valve according to claim 1, it is characterised in that：There is weldering at the both ends of the valve body
Connect groove.
3. welded type three eccentricity low temperature aluminium butterfly valve according to claim 1, it is characterised in that：The valve seat is stainless by single layer
Steel is process.
4. welded type three eccentricity low temperature aluminium butterfly valve according to claim 1, it is characterised in that：The valve deck is extended type knot
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820035929.1U CN207750504U (en) | 2018-01-10 | 2018-01-10 | Welded type three eccentricity low temperature aluminium butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820035929.1U CN207750504U (en) | 2018-01-10 | 2018-01-10 | Welded type three eccentricity low temperature aluminium butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207750504U true CN207750504U (en) | 2018-08-21 |
Family
ID=63152800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820035929.1U Active CN207750504U (en) | 2018-01-10 | 2018-01-10 | Welded type three eccentricity low temperature aluminium butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207750504U (en) |
-
2018
- 2018-01-10 CN CN201820035929.1U patent/CN207750504U/en active Active
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| GR01 | Patent grant |