CN205654907U - High pressure resistant ball valve sealed firmly - Google Patents
High pressure resistant ball valve sealed firmly Download PDFInfo
- Publication number
- CN205654907U CN205654907U CN201620497184.1U CN201620497184U CN205654907U CN 205654907 U CN205654907 U CN 205654907U CN 201620497184 U CN201620497184 U CN 201620497184U CN 205654907 U CN205654907 U CN 205654907U
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- valve
- valve body
- valve seat
- disk seat
- connector
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Abstract
The utility model relates to a high pressure resistant ball valve sealed firmly, which comprises the following components: a valve body, disk seat and case, the case adopts the metal of the high strength hard metal tungsten carbide layer structure of supersonic speed spraying formation to seal the face firmly with the valve seat seal fitting surface, the valve body includes middle valve body of tube -shape and both ends connector, grafting end and mounting flange have on the connector, grafting end cartridge is in the port of middle valve body, the axial tip of middle valve body and mounting flange are through the bolt lock solid, establish annular valve base assembly groove in the interior port of connector, disk seat assembly inslot welded fastening protective ring, protective ring external diameter side is equipped with and annular valve base assembles the step groove that is formed with the disk seat spout between the radial wall of groove, disk seat sliding fit is in the disk seat spout, the metal elastic element to the case was pressed to metal face sealed firmly on the axial outer end butt of disk seat had the drive disk seat, metal elastic element installs at the step inslot. Its adaptation high temperature, high pressure, high wearing and tearing operating mode have the processing convenience, disk seat convenient assembling and sealed reliable advantage.
Description
Technical field
This utility model relates to valve technology field, specifically applies to high temperature, environment under high pressure, uses the ball valve of metal hard-sealing.
Background technology
Hard seal ball valve applies to the operating mode that some are severeer, harsh, such as high temperature, high pressure, high wear working condition, and it can solve valves leakage and the problem leaked outside, it is provided that stable effective guarantee.
Existing hard seal ball valve, valve seat uses metal hard-sealing to coordinate with spheroid, so that valve is suitable for high temperature, high pressure, in high abrasion working environment, its valve seat has employing one-body molded, or be assemblied in valve body, most cases lower valve base uses and is assemblied in valve body, but existing valve body uses body top opening, vent cover sets the structure design of valve gap, such as " a kind of all-metal hard seal ball valve " that China Patent No. is 201520208457.1.The metal hard-sealing ball valve of existing structure has following defects that
1, valve body uses the design of top cap type structure, there is valve body complicated integral structure, and difficulty of processing is big, and valve seat installs the defect of inconvenience；
2, the structure design of valve seat is unreasonable, the defect such as the assembling of valve seat inconvenience and sealing reliability difference.
Summary of the invention
The present utility model purpose: for the defect overcoming prior art to exist, this utility model provides a kind of easy to process, and valve seat is easy to assembly, and seals reliable high-pressure resisting hard sealing ball valve.
For achieving the above object, this utility model provides following technical scheme:
nullA kind of high-pressure resisting hard sealing ball valve，Include valve body，Valve pocket it is provided with in valve body，Valve seat and spool it is provided with in valve pocket，Spool opens/closes control with valve seat corresponding matching composition valve，Spool coordinates face to be metal hard-sealing face with valve base sealing，Described valve body is provided with the lower valve rod for supporting spool and the upper valve rod of drive control valve core，It is characterized in that: described valve body includes the center valve body of tubular，The axial two-port of center valve body is fixed with connector，Connector is extended axially by grafting termination，Rear end, grafting termination is provided with mounting flange，The grafting termination of described connector is plugged in the port of center valve body，The axial end portion of center valve body locks through bolt with mounting flange，Ring-shaped valve seats fitting recess it is provided with in the inner port of described connector，It is welded with protective ring in ring-shaped valve seats fitting recess，Protective ring outside diameter is provided with step groove，It is formed with valve seat chute between step groove and ring-shaped valve seats fitting recess radial wall，Valve seat is snug fit in valve seat chute，The axial outer end of valve seat abuts to have and drives metal hard-sealing face on valve seat to press to the metallic elastic component of spool，Metallic elastic component is arranged in step groove，Described metal hard-sealing face is the high strength hard metallic carbide tungsten layer that supersonic spray coating is formed.
By using technique scheme, using three stage structure to design valve body, facilitate the processing of valve body, each several part of valve body assembles one through mounting flange after using grafting, easy to assembly；And valve seat is assemblied in the inner port of connector through protective ring, easy for installation, valve seat is slideable design, ensure that valve seat reliably seals with spool through metallic elastic component to coordinate, it is the high strength hard metallic carbide tungsten layer using supersonic spray coating technology to be formed at sealing by the metal hard-sealing face on valve seat and core, improves high temperature resistant, the high pressure resistant and anti-wear performance of sealing surface.
Preferably, described metallic elastic component is the wavy spring that composition is sequentially welded in multiple cone shaped elastic becket end, and described wavy spring one end is welded to connect with valve seat, and the wavy spring other end is welded to connect with protective ring.
By using technique scheme, metallic elastic component uses special wavy spring, there is elastic performance good, take up room little advantage, wavy spring uses welding metal rings to connect, and be welded to connect with valve seat, protective ring, it is to avoid wavy spring causes phenomenon of rupture because of plastic deformation under high temperature, high-pressure situations, improves its life and reliability used.
Preferably, grafting termination outline on described connector is step shaft-like, grafting termination includes the path section being located remotely from mounting flange and the big footpath section being connected with mounting flange, described center valve body is provided with the stepped hole adaptive with grafting termination, it is equipped with sealing ring in path section in grafting termination, big footpath section, grafting termination seals with center valve body end count seal ring and coordinates, and forms cannelure in the shaft shoulder position of grafting termination with the shaft shoulder position axially spaced-apart of the stepped hole of center valve body.
By using technique scheme, connector uses step-like structure to coordinate with the grafting of center valve body, improve sealing property, the cannelure formed can ensure that connector puts in place with center valve body grafting assembling, simultaneously when occurring to reveal, cannelure has certain buffer-stored ability, thus improves the sealing property of valve body.
Below in conjunction with the accompanying drawings this utility model is further described.
Accompanying drawing explanation
Fig. 1 is this utility model specific embodiment high-pressure resisting hard sealing ball-valve structure schematic diagram；
Fig. 2 is part A partial enlarged view in Fig. 1.
Detailed description of the invention
nullSee accompanying drawing 1 and accompanying drawing 2，A kind of high-pressure resisting hard sealing ball valve disclosed in this utility model，Include valve body 1，It is provided with valve pocket in valve body 1，Valve seat 2 and spool 3 it is provided with in valve pocket，Spool 3 opens/closes control with valve seat 2 corresponding matching composition valve，Spool 3 seals with valve seat 2 that to coordinate face be metal hard-sealing face，Described valve body 1 is provided with the upper valve rod 5 for the lower valve rod 4 and drive control valve core 3 supporting spool 3，Described valve body 1 includes the center valve body 11 of tubular，The axial two-port of center valve body 11 is fixed with connector 12，Connector 12 is extended axially by grafting termination 121，Rear end, grafting termination 121 is provided with mounting flange 122，The grafting termination 121 of described connector 12 is plugged in the port of center valve body 11，The axial end portion of center valve body 11 locks through bolt with mounting flange 122，It is provided with ring-shaped valve seats fitting recess 123 in the inner port of described connector 12，Protective ring 6 it is welded with in ring-shaped valve seats fitting recess 123，Protective ring 6 outside diameter is provided with step groove 61，It is formed with valve seat chute between step groove 61 and ring-shaped valve seats fitting recess 123 radial wall，Valve seat 2 is snug fit in valve seat chute，The axial outer end of valve seat 2 abuts to have and drives metal hard-sealing face on valve seat 2 to press to the metallic elastic component 7 of spool 3，Metallic elastic component 7 is arranged in step groove 61，Described metal hard-sealing face is the high strength hard metallic carbide tungsten layer that supersonic spray coating is formed.Supersonic spray coating can be carried out by supersonic spray coating equipment, and it is existing mature technology.Valve body is used three stage structure to design by this utility model, facilitates the processing of valve body, and each several part of valve body assembles one through mounting flange after using grafting, easy to assembly；And valve seat is assemblied in the inner port of connector through protective ring, easy for installation, valve seat is slideable design, ensure that valve seat reliably seals with spool through metallic elastic component to coordinate, it is the high strength hard metallic carbide tungsten layer using supersonic spray coating technology to be formed at sealing by the metal hard-sealing face on valve seat and core, improves high temperature resistant, the high pressure resistant and anti-wear performance of sealing surface.
Wherein, described metallic elastic component 7 is the wavy spring that composition is sequentially welded in multiple cone shaped elastic becket 71 end, and described wavy spring 7 one end is welded to connect with valve seat 2, and wavy spring 7 other end is welded to connect with protective ring 6.Certainly metallic elastic component may be used without helical spring, but employing wavy spring, there is elastic performance good, take up room little advantage, wavy spring uses welding metal rings to connect, and be welded to connect with valve seat, protective ring, it is to avoid wavy spring causes phenomenon of rupture because of plastic deformation under high temperature, high-pressure situations, improves its life and reliability used.Therefore the design of preferred wave shape form spring.Solid and reliable for ensureing protection assembling, protective ring 6 axial outer end is also extended with cannula portion 62, step-like groove is formed between the telophragma 63 of cannula portion 62 and protective ring 6, have and the plug-in opening 1231 of cannula portion 62 adaptation outside corresponding ring-shaped valve seats fitting recess 123, cannula portion 62 is inserted in plug-in opening 1231, thus improves the fastness after protective ring assembling.
For improving the sealing after valve body assembles, grafting termination 121 outline on described connector 12 is step shaft-like, grafting termination 121 includes the path section being located remotely from mounting flange 122 and the big footpath section being connected with mounting flange 122, described center valve body 11 is provided with and the stepped hole of grafting termination 121 adaptation, path section in grafting termination 121, it is equipped with sealing ring 124 in the section of big footpath, grafting termination 121 seals with center valve body 11 end count seal ring 124 and coordinates, cannelure 125 is formed with the shaft shoulder position axially spaced-apart of the stepped hole of center valve body 11 in the shaft shoulder position of grafting termination 121.Connector uses step-like structure to coordinate with the grafting of center valve body, improving sealing property, the cannelure of formation can ensure that connector puts in place with center valve body grafting assembling, simultaneously when occurring to reveal, cannelure has certain buffer-stored ability, thus improves the sealing property of valve body.
Above-described embodiment is merely to illustrate this utility model and is used, and is not the restriction to this utility model protection domain, the equivalent technical solutions that those skilled in the art are done under this utility model connotation instructs, and each falls within protection category of the present utility model.
Claims (3)
- null1. a high-pressure resisting hard sealing ball valve，Include valve body，Valve pocket it is provided with in valve body，Valve seat and spool it is provided with in valve pocket，Spool opens/closes control with valve seat corresponding matching composition valve，Spool coordinates face to be metal hard-sealing face with valve base sealing，Described valve body is provided with the lower valve rod for supporting spool and the upper valve rod of drive control valve core，It is characterized in that: described valve body includes the center valve body of tubular，The axial two-port of center valve body is fixed with connector，Connector is extended axially by grafting termination，Rear end, grafting termination is provided with mounting flange，The grafting termination of described connector is plugged in the port of center valve body，The axial end portion of center valve body locks through bolt with mounting flange，Ring-shaped valve seats fitting recess it is provided with in the inner port of described connector，It is welded with protective ring in ring-shaped valve seats fitting recess，Protective ring outside diameter is provided with step groove，It is formed with valve seat chute between step groove and ring-shaped valve seats fitting recess radial wall，Valve seat is snug fit in valve seat chute，The axial outer end of valve seat abuts to have and drives metal hard-sealing face on valve seat to press to the metallic elastic component of spool，Metallic elastic component is arranged in step groove，Described metal hard-sealing face is the high strength hard metallic carbide tungsten layer that supersonic spray coating is formed.
- High-pressure resisting hard sealing ball valve the most according to claim 1, it is characterized in that: described metallic elastic component is the wavy spring that composition is sequentially welded in multiple cone shaped elastic becket end, described wavy spring one end is welded to connect with valve seat, and the wavy spring other end is welded to connect with protective ring.
- High-pressure resisting hard sealing ball valve the most according to claim 1 or claim 2, it is characterized in that: the grafting termination outline on described connector is step shaft-like, grafting termination includes the path section being located remotely from mounting flange and the big footpath section being connected with mounting flange, described center valve body is provided with the stepped hole adaptive with grafting termination, it is equipped with sealing ring in path section in grafting termination, big footpath section, grafting termination seals with center valve body end count seal ring and coordinates, and forms cannelure in the shaft shoulder position of grafting termination with the shaft shoulder position axially spaced-apart of the stepped hole of center valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620497184.1U CN205654907U (en) | 2016-05-26 | 2016-05-26 | High pressure resistant ball valve sealed firmly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620497184.1U CN205654907U (en) | 2016-05-26 | 2016-05-26 | High pressure resistant ball valve sealed firmly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205654907U true CN205654907U (en) | 2016-10-19 |
Family
ID=57404471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620497184.1U Expired - Fee Related CN205654907U (en) | 2016-05-26 | 2016-05-26 | High pressure resistant ball valve sealed firmly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205654907U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114270082A (en) * | 2019-08-30 | 2022-04-01 | 纬湃技术有限公司 | Sealing device for fluid valve, fluid valve and vehicle |
-
2016
- 2016-05-26 CN CN201620497184.1U patent/CN205654907U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114270082A (en) * | 2019-08-30 | 2022-04-01 | 纬湃技术有限公司 | Sealing device for fluid valve, fluid valve and vehicle |
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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: 20161019 Termination date: 20170526 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |