CN201496588U - Ultrawear-resistant hard seal compensating half-ball valve - Google Patents
Ultrawear-resistant hard seal compensating half-ball valve Download PDFInfo
- Publication number
- CN201496588U CN201496588U CN2009200754893U CN200920075489U CN201496588U CN 201496588 U CN201496588 U CN 201496588U CN 2009200754893 U CN2009200754893 U CN 2009200754893U CN 200920075489 U CN200920075489 U CN 200920075489U CN 201496588 U CN201496588 U CN 201496588U
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- Prior art keywords
- valve
- spool
- seal
- valve seat
- ball
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- Expired - Fee Related
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Abstract
The utility model discloses an ultrawear-resistant hard seal compensating half-ball valve, which comprises a valve body, a platen arranged at the lower part of the valve body, a valve core arranged at the middle part of the valve body, a valve seat fixed above the platen, a rotating shaft penetrating through the valve body and fixedly connected with the valve core and a shaft sleeve for sealing the rotating shaft and capable of penetrating through the valve core end; and the compensating half-ball valve is characterized in that the valve core is formed by fixedly sticking a valve core sealing ball and a valve core body with ceramic adhesive, the valve seat comprises sealing rings, and rubber sealing rings are arranged between the valve body and the valve seat and between the valve seat and the platen. The utility model has the advantages of high-pressure resistance, small resistance, automatic wear compensation, good sealing performance and long service life.
Description
Technical field
The utility model relates to a kind of ball valve, relates in particular to the compensation semispherical valve of a kind of super abrasion-proof hard seal.
Background technique
Semispherical valve is widely used in the ball valve that industries such as electric power, metallurgy, oil, chemical industry, city tap-water are done to cut off medium or regulated rate-of flow, yet in the prior art, the spool of semispherical valve and sealing surface of seat be built-up welding or surfacing nickel-base alloy respectively, its hardness is low, in long using process, can not satisfy the severe impact of suppressing mineral substance and make ball valve lose sealing, the valve base sealing actinal surface does not block the impact that medium is directly faced on ground in addition, it also is one of factor that influences sealability, thereby make the working life of semispherical valve low, the replacement cycle is frequent.
The model utility content
The purpose of this utility model provides the compensation semispherical valve of a kind of super abrasion-proof hard seal, and this semispherical valve is high pressure resistant, resistance is little, automatic compensate for wear, good seal performance, long service life.
The purpose of the compensation semispherical valve of a kind of super abrasion-proof hard seal of the utility model is achieved through the following technical solutions: the compensation semispherical valve of a kind of super abrasion-proof hard seal, comprise valve body, be arranged on valve body lower portion platen, be arranged on valve body middle part spool, be fixed on the platen top valve seat, pass valve body and the rotating shaft of fixedlying connected and be arranged on the axle sleeve that rotating shaft passes the spool end with spool; Be characterized in that described spool is to be made of valve core and the seal spool ball that is arranged on the valve core; Described valve seat is made of seal ring; Be respectively equipped with rubber seal between described valve body and valve seat, valve seat and the platen.
The above-mentioned compensation semispherical valve of super abrasion-proof hard seal, wherein, described seal spool ball adopts the nano ceramics zirconia material.
The above-mentioned compensation semispherical valve of super abrasion-proof hard seal, wherein, the seal ring of described formation valve seat adopts the nano ceramics zirconia material.
The above-mentioned compensation semispherical valve of super abrasion-proof hard seal, wherein, described seal spool ball is arranged on the position of the sealing surface of valve core, and seal spool ball and valve core are made of one deck ceramic binder bonding.
The above-mentioned compensation semispherical valve of super abrasion-proof hard seal, wherein, described valve seat locates also to be provided with the protection deflector of projection before sealing surface.
The compensation semispherical valve of the super abrasion-proof hard seal of the utility model makes it compared with prior art owing to adopted technique scheme, has following advantage and good effect:
1, the utility model is because spool is provided with nano ceramic material seal spool ball and valve seat is a nano ceramics zirconia material seal ring, its hardness height, and little, high temperature resistant, corrosion-resistant with overcurrent mineral substance affinity, have extremely strong anti-scouring capability.
2, the utility model is owing to be provided with rubber seal between valve seat and valve body, the valve seat that makes compensate for wear amount and keep applying with the seal spool ball, good seal performance automatically under the fluid medium pressure effect.
3, the utility model carries out water conservancy diversion because valve seat locates to be provided with the protection deflector in face of sealed mouth to crossing flow medium, has avoided medium to sealing directly acutely washing away of actinal surface, reaches super wear-resisting effect.
Description of drawings
Fig. 1 is the structural drawing of the compensation semispherical valve of the super abrasion-proof hard seal of the utility model.
Fig. 2 is the enlarged view of local A among Fig. 1.
Embodiment
See also shown in the accompanying drawing 1, the compensation semispherical valve of a kind of super abrasion-proof hard seal, comprise valve body 1, platen 2, spool 3, valve seat 4, rotating shaft 5 and axle sleeve 6, platen 2 be arranged on the bottom of valve body 1, middle part that spool 3 is arranged on valve body 1, top, rotating shaft 5 that valve seat 4 is fixed on platen 2 pass valve body 1 and fixedly connected with spool 3, axle sleeve 6 is arranged on rotating shaft 5 and passes spool 3 end places.
Please cooperate referring to shown in Figure 2, Fig. 2 is the enlarged view of local A among Fig. 1, and spool 3 is to be made of valve core 32 and the seal spool ball 31 that is arranged on the valve core 32; Seal spool ball 31 is the nano ceramics zirconia material, seal spool ball 31 is arranged on the position of the sealing surface of valve core 32, seal spool ball 31 is made of one deck ceramic binder bonding with valve core 32, valve seat 4 is made of seal ring, and seal ring is made for the nano ceramics zirconia material, the cemented carbide that the comprehensive mechanical performance utmost point of this material is better than welding, and it is little with overcurrent mineral medium affinity, have extremely strong anti-scouring capability, and high temperature resistant, corrosion-resistant; Also be provided with rubber seal 7 between valve body 1 and valve seat 4, valve seat 4 and the platen 2, under the fluid medium pressure effect, rubber seal 7 makes valve seat 4 and seal spool ball 31 keep fitting tightly, form the seal pressure between reliable sealing pair, fluid medium pressure is big more, seal pressure is big more, and sealing actinal surface 8 keeps the applying with seal spool ball 31 if having wearing and tearing, valve seat 4 can compensate its wear extent automatically under the fluid medium pressure effect; Valve seat 4 also is provided with the protection deflector 9 of projection in sealing front, actinal surface 8 place, carry out water conservancy diversion to crossing flow medium, and Fig. 2 has indicated the flow direction of crossing flow medium, has avoided medium to sealing directly acutely washing away of actinal surface 8, and resistance is little, reaches super wear-resisting effect.
Rotating shaft 5 is by the final controlling element transmission of semispherical valve outside, drive round the rotatablely moving that spool 3 is done in the 90 degree scopes, reach keying and the adjusting purpose of compensation semispherical valve to crossing flow medium in the operating mode pipe-line system, rotate counterclockwise spool 3 and be opening direction of the present utility model, clockwise rotate spool 3 and be closing direction of the present utility model, the position shown in spool 3 dotted lines is the position that semispherical valve is all opened among Fig. 1, crosses flow medium and passes through semispherical valve by arrow shown in Figure 1.
In sum, the super abrasion-proof hard seal compensating semi ball valve of the utility model is high pressure resistant, resistance is little, auto-compensation wearing and tearing, good seal performance, long service life.
Claims (5)
1. compensation semispherical valve of super abrasion-proof hard seal, comprise valve body (1), be arranged on valve body (1) bottom platen (2), be arranged on valve body (1) middle part spool (3), be fixed on platen (2) top valve seat (4), pass spool (1) and the rotating shaft (5) of fixedlying connected and be arranged on the axle sleeve (6) that rotating shaft (5) passes spool (1) end with spool (1); It is characterized in that: described spool (3) is to be made of valve core (32) and the seal spool ball (31) that is arranged on the valve core (32); Described valve seat (4) is made of seal ring; Be respectively equipped with rubber seal (7) between described valve body (1) and valve seat (4), valve seat (4) and the platen (2).
2. the compensation semispherical valve of super abrasion-proof hard seal according to claim 1 is characterized in that: described seal spool ball (31) adopts the nano ceramics zirconia material.
3. the compensation semispherical valve of super abrasion-proof hard seal according to claim 1 is characterized in that: the seal ring of described formation valve seat (4) adopts the nano ceramics zirconia material.
4. the compensation semispherical valve of super abrasion-proof hard seal according to claim 1, it is characterized in that: described seal spool ball (31) is arranged on the position of the sealing surface of valve core (32), and seal spool ball (31) is made of one deck ceramic binder bonding with valve core (32).
5. the compensation semispherical valve of super abrasion-proof hard seal according to claim 1 is characterized in that: described valve seat (4) locates also to be provided with the protection deflector (9) of projection at sealing surface (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200754893U CN201496588U (en) | 2009-07-29 | 2009-07-29 | Ultrawear-resistant hard seal compensating half-ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200754893U CN201496588U (en) | 2009-07-29 | 2009-07-29 | Ultrawear-resistant hard seal compensating half-ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201496588U true CN201496588U (en) | 2010-06-02 |
Family
ID=42439795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200754893U Expired - Fee Related CN201496588U (en) | 2009-07-29 | 2009-07-29 | Ultrawear-resistant hard seal compensating half-ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201496588U (en) |
-
2009
- 2009-07-29 CN CN2009200754893U patent/CN201496588U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20100729 |