CN215980908U - Fluorine-lined high-pressure full-bore plug valve - Google Patents
Fluorine-lined high-pressure full-bore plug valve Download PDFInfo
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- CN215980908U CN215980908U CN202121736068.8U CN202121736068U CN215980908U CN 215980908 U CN215980908 U CN 215980908U CN 202121736068 U CN202121736068 U CN 202121736068U CN 215980908 U CN215980908 U CN 215980908U
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Abstract
The utility model relates to a fluorine-lined high-pressure full-bore plug valve which comprises a valve body and a plug body, wherein a valve cavity is formed in the valve body, the plug body is arranged in the valve cavity, and an input pipe section and an output pipe section are respectively arranged on two sides of the valve cavity in the valve body; the middle part of the plug body is provided with a medium through hole, and the medium through hole, the input pipe section and the output pipe section have the same aperture. The utility model has reasonable structural design, realizes the full-bore structure of the valve by adopting the same size for the medium through hole, the input pipe section and the output pipe section, keeps the area of the whole flow passage consistent, improves the flow rate of the pipeline, reduces the pressure loss and meets the use requirement of large flow rate.
Description
The technical field is as follows:
the utility model relates to a fluorine-lined high-pressure full-bore plug valve.
Background art:
the traditional plug valve flow channel is a Venturi flow channel (namely the aperture of a through hole in the plug body is smaller than that of a flow channel in the valve body, so that the flow channel area of the whole valve is reduced at the plug body), the required pipeline flow cannot be achieved frequently in the use process of the valve, and the use requirement of large flow rate cannot be well met.
The utility model has the following contents:
the utility model aims at solving the problems in the prior art, namely the utility model aims to provide a fluorine-lined high-pressure full-bore plug valve which is reasonable in design and capable of improving the flow rate of a pipeline.
In order to achieve the purpose, the utility model adopts the technical scheme that: a fluorine-lined high-pressure full-bore plug valve comprises a valve body and a plug body, wherein a valve cavity is formed in the valve body, the plug body is arranged in the valve cavity, and an input pipe section and an output pipe section are respectively arranged on two sides of the valve cavity in the valve body; the middle part of the plug body is provided with a medium through hole, and the medium through hole, the input pipe section and the output pipe section have the same aperture.
Furthermore, the cross sections of the medium through hole, the input pipe section and the output pipe section are all circular.
Further, still including setting up valve gap, the valve rod that is connected with the cock body and runs through the valve gap in valve body middle part upper end, the valve rod is close to the one end outer wall of cock body and is equipped with toper sealing, the outside cover of toper sealing is equipped with the sealing member, the middle part of sealing member is equipped with and is used for the sealed hole of toper with toper sealing complex, and the upside of sealing member is equipped with and is used for pressing the sealing member to establish the piece that compresses tightly in toper sealing.
Furthermore, the outer wall of the plug body and the outer wall of the conical sealing part are both provided with a first fluorine lining layer; the inner wall and the flange surfaces at two sides of the valve body are respectively provided with a second fluorine lining layer, the flange surfaces at two sides of the valve body are respectively provided with an annular clamping groove, and one surface of the second fluorine lining layer, which is contacted with the flange surfaces, is provided with a convex ring which is used for being clamped and matched with the clamping groove.
Furthermore, the first fluorine lining layer and the second fluorine lining layer are both formed by adopting an isostatic pressing process.
Furthermore, an O-shaped ring is arranged between the outer side wall of the conical sealing part and the inner side wall of the conical sealing hole.
Furthermore, the sealing element comprises a conical sealing element body, a conical sealing hole is formed in the middle of the sealing element body, and an abdicating groove used for containing the pressing element is annularly formed in the outer side of the sealing element body.
Furthermore, the pressing piece comprises an annular gland and an adjusting screw, and a conical hole part matched with the conical surface of the sealing piece body is formed in the gland; the adjusting screw penetrates through the valve cover along a vertical thread, and the bottom surface of the adjusting screw is abutted to the top surface of the gland.
Furthermore, an annular flange is arranged on the outer edge of the upper end of the abdicating groove; the upper end of the middle part of the valve body is provided with an annular supporting step, and the bottom surface of the annular flange is abutted against the step surface of the supporting step; the bottom surface of the valve cover is abutted against the top surface of the annular flange.
Furthermore, the lateral wall of valve chamber is equipped with a plurality of and is circumference equipartition and be used for with cock body matched with sealed convex part, the cross-section of sealed convex part is the arc form.
Compared with the prior art, the utility model has the following effects: the utility model has reasonable structural design, realizes the full-bore structure of the valve by adopting the same size for the medium through hole, the input pipe section and the output pipe section, keeps the area of the whole flow passage consistent, improves the flow rate of the pipeline, reduces the pressure loss and meets the use requirement of large flow rate.
Description of the drawings:
FIG. 1 is a schematic front sectional view of an embodiment of the present invention;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is a schematic view in cross-section of a seal in an embodiment of the utility model;
FIG. 4 is a schematic diagram of a top-down configuration of an embodiment of the present invention;
fig. 5 is an enlarged schematic view at B in fig. 1.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1 to 5, the fluorine-lined high-pressure full-bore plug valve comprises a valve body 2 and a plug body 3, wherein a valve cavity 1 is formed in the valve body 2, the plug body 3 is arranged in the valve cavity 1, and an input pipe section 4 and an output pipe section 5 are respectively communicated with two sides of the valve cavity 1 in the valve body 2; the middle part of the plug body 3 is provided with a medium through hole 6, and the medium through hole 6, the input pipe section 4 and the output pipe section 5 have the same aperture. The medium through hole 6, the input pipe section 4 and the output pipe section 5 are in the same size (namely, the aperture), when the plug valve is opened, the medium through hole, the input pipe section and the output pipe section form a full-bore flow channel, the cross-sectional areas of all the positions of the whole flow channel are kept consistent, the condition that the flow channel area of a certain position is reduced does not exist, the full-bore structure of the valve is realized, the flow rate of the pipeline can be improved at the moment, the pressure loss is reduced, and the large-flow use requirement is met.
In this embodiment, the media passage 6, the input pipe section 4, and the output pipe section 5 are all circular in cross section.
In this embodiment, this plug valve is still including setting up valve gap 7 in 2 middle parts upper ends of valve body, being connected with cock body 3 and running through valve rod 8 of valve gap 7, the one end outer wall that valve rod 8 is close to cock body 3 is equipped with toper sealing 9, the outside cover of toper sealing 9 is equipped with sealing member 10, the middle part of sealing member 10 is equipped with and is used for the sealed hole 101 of toper with 9 matched with of toper sealing, and the upside of sealing member 10 is equipped with and is used for pressing sealing member 10 to establish the piece that compresses tightly in toper sealing to make the inner wall in toper sealed hole and the tight laminating of the conical surface of toper sealing, improve sealed effect.
In the embodiment, the outer wall of the plug body 3 and the outer wall of the conical sealing part 9 are both provided with a first fluorine lining layer 11; the inner wall and the flange surfaces at two sides of the valve body 2 are respectively provided with a second fluorine lining layer 12, and the metal piece and corrosive media are isolated by the fluorine lining layers, so that the service life of the valve is prolonged. The flange surfaces of the two sides of the valve body 2 are provided with annular clamping grooves 13, one surface of the second fluorine lining layer 12, which is in contact with the flange surfaces, is provided with a convex ring 14 which is used for being clamped and matched with the clamping grooves 13, and as shown in figure 5, the second fluorine lining layer and the flange surfaces of the valve body are clamped and connected with the clamping grooves through the convex ring, so that the second fluorine lining layer and the valve body are formed into a whole.
In this embodiment, the first fluorine lining layer 11 and the second fluorine lining layer 12 are both formed by an isostatic pressing process, and after the formation, the density is high, and after the wall thickness is thick, the service life of the pump body is prolonged.
In this embodiment, an O-ring 15 is disposed between an outer side wall of the conical sealing portion 9 and an inner side wall of the conical sealing hole 101, so as to further ensure a good seal between the sealing member and the conical sealing portion. Preferably, the outer side wall of the conical sealing part is provided with an annular groove corresponding to the position of the O-shaped ring, and the O-shaped ring is embedded in the annular groove.
In this embodiment, as shown in fig. 3, the sealing element 10 includes a conical sealing element body 102, a conical sealing hole 101 that penetrates vertically is formed in the middle of the sealing element body 102, and an abdicating groove 103 for accommodating a pressing element is annularly formed on the outer side of the sealing element body 102; the pressing piece comprises a ring-shaped gland 16 and an adjusting screw 17, and a conical hole part 161 matched with the conical surface of the sealing piece body 102 is arranged inside the gland 16; the adjusting screw 17 penetrates through the valve cover 7 along a vertical thread, and the bottom surface of the adjusting screw 17 is abutted with the top surface of the gland 16. When the sealing element is used, the inner wall of the conical sealing hole 101 is matched with the conical surface of the conical sealing part 9, the gland 16 is matched with the conical surface of the sealing element body 102 through the conical hole part 161, and the adjusting screw 17 pushes the gland 16 to press the sealing element 10 downwards, so that the conical sealing hole 101 in the middle of the sealing element body 102 is tightly attached to the conical surface of the conical sealing part 9, and a good sealing effect is achieved.
In this embodiment, the tapered sealing portion, the sealing member body, the tapered sealing hole, and the tapered hole portion are all small in size at the upper end and large in size at the lower end, and have the same taper, thereby ensuring good sealing.
In this embodiment, an annular flange 104 is disposed on an outer edge of an upper end of the abdicating groove 103; the upper end of the middle part of the valve body 2 is provided with an annular supporting step 18, and the bottom surface of the annular flange 104 is abutted against the step surface of the supporting step 18; the bottom surface of the valve cover 7 is abutted against the top surface of the annular flange 104, and the annular flange is tightly pressed by the valve cover, so that the fixing effect of the whole sealing element is further improved.
In this embodiment, the shape of the valve chamber 1 is adapted to the shape of the plug body, the side wall of the valve chamber 1 is provided with a plurality of circumferentially uniformly distributed sealing convex portions 19 for matching with the plug body, and the cross section of each sealing convex portion is arc-shaped, as shown in fig. 4. Through set up sealed convex part in the valve pocket, the outer wall of cock body cooperatees with sealed convex part and realizes sealed, reducible traditional sealed face area like this effectively reduces the opening moment of cock body.
In this embodiment, the valve body, the plug body, the valve cover or other places needing sealing all adopt high-pressure sealing structures, and meet the strength and sealing strength tests of PN25 and 300 LB.
In this embodiment, a handle 20 is connected to the upper end of the valve stem 8.
If the utility model discloses or relates to parts or structures which are fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated.
Any part provided by the utility model can be assembled by a plurality of independent components or can be manufactured by an integral forming process.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the utility model or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the utility model as defined by the appended claims.
Claims (10)
1. The utility model provides a line fluorine high pressure full latus rectum plug valve which characterized in that: the valve comprises a valve body and a plug body, wherein a valve cavity is arranged in the valve body, the plug body is arranged in the valve cavity, and an input pipe section and an output pipe section are respectively arranged on two sides of the valve cavity in the valve body; the middle part of the plug body is provided with a medium through hole, and the medium through hole, the input pipe section and the output pipe section have the same aperture.
2. The fluorine lined high pressure full bore plug valve of claim 1, wherein: the medium through hole, the section of the input pipe section and the section of the output pipe section are all circular.
3. The fluorine lined high pressure full bore plug valve of claim 1, wherein: still including setting up valve gap, the valve rod that is connected and runs through the valve gap with the cock body in valve body middle part upper end, the one end outer wall that the valve rod is close to the cock body is equipped with toper sealing, the outside cover of toper sealing is equipped with the sealing member, the middle part of sealing member is equipped with and is used for the sealed hole of toper with toper sealing complex, and the upside of sealing member is equipped with and is used for pressing the sealing member to establish the piece that compresses tightly in toper sealing.
4. The fluorine lined high pressure full bore plug valve of claim 3, wherein: the outer wall of the plug body and the outer wall of the conical sealing part are both provided with a first fluorine lining layer; the inner wall and the flange surfaces at two sides of the valve body are respectively provided with a second fluorine lining layer, the flange surfaces at two sides of the valve body are respectively provided with an annular clamping groove, and one surface of the second fluorine lining layer, which is contacted with the flange surfaces, is provided with a convex ring which is used for being clamped and matched with the clamping groove.
5. The fluorine lined high pressure full bore plug valve of claim 4, wherein: and the first fluorine lining layer and the second fluorine lining layer are both formed by adopting an isostatic pressing process.
6. The fluorine lined high pressure full bore plug valve of claim 3, wherein: an O-shaped ring is arranged between the outer side wall of the conical sealing part and the inner side wall of the conical sealing hole.
7. The fluorine lined high pressure full bore plug valve of claim 3, wherein: the sealing element comprises a conical sealing element body, a conical sealing hole is formed in the middle of the sealing element body, and an abdicating groove used for containing the pressing element is annularly formed in the outer side of the sealing element body.
8. The fluorine lined high pressure full bore plug valve of claim 7, wherein: the pressing piece comprises an annular gland and an adjusting screw, and a conical hole part matched with the conical surface of the sealing piece body is formed in the gland; the adjusting screw penetrates through the valve cover along a vertical thread, and the bottom surface of the adjusting screw is abutted to the top surface of the gland.
9. The fluorine lined high pressure full bore plug valve of claim 7, wherein: an annular flange is arranged on the outer edge of the upper end of the abdicating groove; the upper end of the middle part of the valve body is provided with an annular supporting step, and the bottom surface of the annular flange is abutted against the step surface of the supporting step; the bottom surface of the valve cover is abutted against the top surface of the annular flange.
10. The fluorine lined high pressure full bore plug valve of claim 1, wherein: the lateral wall of valve chamber is equipped with a plurality of and is circumference equipartition and be used for with cock body matched with sealed convex part, the cross-section of sealed convex part is the arc form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121736068.8U CN215980908U (en) | 2021-07-29 | 2021-07-29 | Fluorine-lined high-pressure full-bore plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121736068.8U CN215980908U (en) | 2021-07-29 | 2021-07-29 | Fluorine-lined high-pressure full-bore plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215980908U true CN215980908U (en) | 2022-03-08 |
Family
ID=80576223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121736068.8U Active CN215980908U (en) | 2021-07-29 | 2021-07-29 | Fluorine-lined high-pressure full-bore plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215980908U (en) |
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2021
- 2021-07-29 CN CN202121736068.8U patent/CN215980908U/en active Active
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