CN207145719U - A kind of improved structure of metal valve body - Google Patents
A kind of improved structure of metal valve body Download PDFInfo
- Publication number
- CN207145719U CN207145719U CN201720583185.2U CN201720583185U CN207145719U CN 207145719 U CN207145719 U CN 207145719U CN 201720583185 U CN201720583185 U CN 201720583185U CN 207145719 U CN207145719 U CN 207145719U
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- Prior art keywords
- valve
- sealing
- mounting hole
- seal
- valve body
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Abstract
It the utility model is related to a kind of improved structure of metal valve body, including valve body, threaded mounting hole is provided with valve seal end surface, floating type ring sealing base is provided with the outside in valve seal portion, Gask-O-Seal is provided between ring sealing base and valve seal portion；Ring sealing base and Gask-O-Seal are provided with mounting hole, and compression regulating bolt is fitted with threaded mounting hole and corresponding mounting hole；Seal receptacle includes connecting portion and sealing, and connecting portion is provided with mounting hole, and the external diameter of sealing contacts with the internal diameter in valve seal portion, and the inner chamber of sealing is to be gradually reduced pyramidal structure along Fluid pressure direction.Using above-mentioned technical proposal, when valve plate bears reverse media pressure, valve plate deformation causes to leak, and now fastening, which compresses regulating bolt valve seal seat, makes valve seal seat be in close contact with valve plate so as to reverse pressure-bearing, valve is reached two way seal.In addition, the utility model also has simple in construction, easy to process, the advantages that cost is cheap, and service life is long.
Description
Technical field
The technical field of sealing technology that the utility model belongs on metal sealing valve, more particularly to a kind of changing for metal valve body
Enter structure.
Background technology
At present, metal sealing is the state-of-the-art butterfly valve seal structure in current home and abroad, has and seals automatic compensating action,
Sealing reliability is good.Sealing surface disengagement angle is big when opening and closing butterfly plate, and sealing surface wear is small, and friction torque is small；It is reasonable in design, make
With long lifespan, driving moment is small, and operation is flexible, and switch is rapid；Easy to assembly, Applicable media scope is wide：Water, seawater, oil product, sky
The media such as gas, coal gas, steam can be used.Heat-resisting quantity is good, and Applicable temperature scope is wide；Plain edition Applicable temperature：≤210℃；
High temperature modification Applicable temperature：≤425℃.Mainly include valve body, seal receptacle, sealing gasket and valve plate, referring to Fig. 4, on valve plate
Provided with pressure ring seam face, screwed hole is provided with pressure ring seam face, is then stacked with several sealing rings on pressure ring seam face,
The outside of sealing ring is provided with pressure ring, and pressure ring sum layer sealing ring is connected by fastener and the fastening of valve crush seam face upper screwed hole
Connect, and then realize the sealing between sealing ring and the sealing of valve body, this kind of metal valve
In actual production, the valve plate processing of metal valve is cumbersome, and valve plate processing sealing ring, valve plate coordinates seam, and line is bored
Hole, tapping, sealing ring, pressure ring are assembled, sealing surface is processed, unloads sealing ring, reprocessing valve plate, pressure ring gap value, then repeating to fill
With sealing ring, pressure ring.Valve is long-term use of, leaks, after can realizing sealing wear by the fastener adjusted on valve plate
The problem of leakage, it is necessary to re-replace sealing ring after sealing ring damages, at this moment just need cumbersome unloading process and changed
Journey；In addition when valve plate bears reverse media pressure, valve plate deformation causes to leak.
The content of the invention
The utility model for solve known technology present in technical problem provide a kind of simplified structure, it is easy for installation,
Handling ease, good sealing effect, improve sealing property and service life metal valve body improved structure.
The utility model is adopted the technical scheme that to solve technical problem present in known technology：
A kind of improved structure of metal valve body, including valve body, it is characterised in that：In the valve pocket fluid pressure of valve body
Threaded mounting hole is along the circumferential direction laid with the end face in opposite direction valve seal portion, is provided with the outside in valve seal portion floating
Dynamic formula ring sealing base, Gask-O-Seal is provided between ring sealing base and the valve seal portion；The ring sealing base and
Above-mentioned threaded mounting hole position is corresponded on Gask-O-Seal and is provided with mounting hole, is matched somebody with somebody in the threaded mounting hole and corresponding mounting hole
Equipped with compression regulating bolt；The seal receptacle includes connecting portion and sealing, is along the circumferential direction laid with the connecting portion
Mounting hole, the external diameter of the sealing contact with the internal diameter in valve seal portion, and the inner chamber of the sealing is along Fluid pressure side
To being gradually reduced pyramidal structure.
The utility model has the advantages and positive effects of：The utility model uses said structure, in pressure test,
Bolt can be tightened by leakage phenomenon occur, compressed sealing gasket increase seal receptacle opposite force, so as to improve sealing effectiveness, reached zero and let out
Leakage, improve fabrication yield；It is long-term use of in valve, there is leakage and unload bottom sealing socket, change sealing gasket, easy to maintenance, and can
The advantages of quick-replaceable, using above-mentioned technical proposal, when valve plate bears reverse media pressure, valve plate deformation causes to leak, this
When fastening compress regulating bolt valve seal seat and valve seal seat and valve plate is in close contact so as to reverse pressure-bearing, reach valve
Two way seal.In addition, the utility model also has simple in construction, easy to process, the advantages that cost is cheap, and service life is long.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is I portions enlarged drawing in Fig. 1；
Fig. 3 is the utility model use state figure；
Fig. 4 is prior art construction schematic diagram.
In figure：1st, valve body；1-1, valve seal portion；1-2, threaded mounting hole；2nd, seal receptacle；2-1, connecting portion；It is 2-2, close
Envelope portion；2-3, mounting hole；3rd, sealing gasket；4th, valve plate；5th, regulating bolt is compressed.
Embodiment
For invention, features and effects of the present utility model can be further appreciated that, following examples are hereby enumerated, and coordinate
Accompanying drawing describes in detail as follows：
Fig. 1 to Fig. 3, a kind of improved structure of metal valve body, including valve body 1 are referred to, in the valve cavity fluid of valve body
Threaded mounting hole 1-2 is along the circumferential direction laid with the opposite direction valve seal portion 1-1 of pressure end face, in valve seal portion
Outside be provided with floating type ring sealing base 2, Gask-O-Seal 3 is provided between the ring sealing base 2 and valve seal portion；
Above-mentioned threaded mounting hole position, which is corresponded to, on the ring sealing base 2 and Gask-O-Seal 3 is provided with mounting hole, the threaded mounting hole
Regulating bolt 5 is compressed with being fitted with corresponding mounting hole；The seal receptacle 2 includes connecting portion 2-1 and sealing 2-2, described
Mounting hole 2-3 is along the circumferential direction laid with connecting portion, the external diameter of the sealing contacts with the internal diameter in valve seal portion, institute
The inner chamber for stating sealing 2-2 is to be gradually reduced pyramidal structure along Fluid pressure direction, when closing valve plate, valve plate and pyramidal structure
Coordinate and realize sealing, the sealing of the valve plate is provided with groove, and hard alloy sealing ring, the hard alloy are embedded with groove
Sealing ring and valve plate one cast molding.
The utility model uses said structure, and in pressure test, bolt can be tightened by leakage phenomenon occur, compress sealing gasket
Increase seal receptacle opposite force, so as to improve sealing effectiveness, reach zero leakage, improve fabrication yield；It is long-term use of in valve, go out
Now bottom sealing socket is unloaded in leakage, changes sealing gasket, easy to maintenance, the advantages of and can quick-replaceable, using above-mentioned technical proposal, works as valve
When plate bears reverse media pressure, valve plate deformation causes to leak, and now fastening, which compresses regulating bolt valve seal seat, makes valve body close
Seal seat to be in close contact so as to reverse pressure-bearing with valve plate, valve is reached two way seal.In addition, the utility model also has structure letter
It is single, easy to process, the advantages that cost is cheap, and service life is long.
Described above is only to preferred embodiment of the present utility model, not the utility model is made any formal
Limitation, it is every according to the technical essence of the utility model to any simple modification made for any of the above embodiments, equivalent variations with
Modification, is belonged in the range of technical solutions of the utility model.
Claims (1)
1. a kind of improved structure of metal valve body, including valve body, it is characterised in that：Valve body valve pocket fluid pressure it is anti-
Threaded mounting hole is along the circumferential direction laid with the end face of direction valve body sealing, is provided with and floats in the outside in valve seal portion
Formula ring sealing base, Gask-O-Seal is provided between ring sealing base and the valve seal portion；The ring sealing base and ring
Above-mentioned threaded mounting hole position is corresponded on shape sealing gasket and is provided with mounting hole, is equipped with the threaded mounting hole and corresponding mounting hole
There is compression regulating bolt；The seal receptacle includes connecting portion and sealing, and peace is along the circumferential direction laid with the connecting portion
Hole is filled, the external diameter of the sealing contacts with the internal diameter in valve seal portion, and the inner chamber of the sealing is along Fluid pressure direction
It is gradually reduced pyramidal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720583185.2U CN207145719U (en) | 2017-05-23 | 2017-05-23 | A kind of improved structure of metal valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720583185.2U CN207145719U (en) | 2017-05-23 | 2017-05-23 | A kind of improved structure of metal valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207145719U true CN207145719U (en) | 2018-03-27 |
Family
ID=61658356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720583185.2U Active CN207145719U (en) | 2017-05-23 | 2017-05-23 | A kind of improved structure of metal valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207145719U (en) |
-
2017
- 2017-05-23 CN CN201720583185.2U patent/CN207145719U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |