CN2342173Y - Semi ball valve - Google Patents
Semi ball valve Download PDFInfo
- Publication number
- CN2342173Y CN2342173Y CN 97229709 CN97229709U CN2342173Y CN 2342173 Y CN2342173 Y CN 2342173Y CN 97229709 CN97229709 CN 97229709 CN 97229709 U CN97229709 U CN 97229709U CN 2342173 Y CN2342173 Y CN 2342173Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- utility
- model
- medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a semi ball valve, belonging to the design and manufacturing technique of a valve structure for liquid medium and gas medium. The utility model is composed of a valve seat, a valve clack and a valve rod. The valve clack is a spherical cap which is arranged in the valve body by the upper valve rod and the lower valve rod. The centre of the spherical cap is eccentric with the central line of the valve rod. The lower valve rod is a loop rob with screw thread. The valve seat is provided with a sealing ring. The upper valve rod drives the spherical cap to rotate by 90DEG, completing switching action. The utility model has the advantages of one-way seal, good tightness, light weight, low cost, antiattrition, long service life, small switching force moment, small damage of the medium, and high speed. The utility model can be used with a control system through networking, and can be widely used for controlling liquid, gas and petroleum product medium pipelines.
Description
The utility model belongs to the design and fabrication technology field of valve mechanism, refers in particular to the valve that is used for liquid, gas medium conveying.
At present, generally the ball valve of Shi Yonging is made of valve seat, flap and valve rod, and flap adopts the spheroid intermediate throughholes to form, when through hole and valve Cuo when align in the hole, medium passes through, otherwise then ends.Its shortcoming one is the degree of finish that the flap spherome surface is had relatively high expectations, and is convenient to the opening and closing of ball valve; The 2nd, flap spheroid weight is big, is difficult for processing; The 3rd, sealing wear is serious between flap and the valve seat, easily causes leakage.
The purpose of this utility model provides a kind of good airproof performance, reduces wearing and tearing, and easily processing opens and closes fireballing semispherical valve.
The purpose of this utility model is achieved in that it is made of valve seat, flap and valve rod, and flap is a spherical crown, spherical crown is contained in the valve body by upper valve rod and lower valve rod, spherical crown center and valve rod center line off-centre, lower valve rod is the loop bar with screw thread, and seal ring is housed on the valve seat.Upper valve rod drives 90 ° of rotations of spherical crown, finishes the opening and closing action.
The utility model has the advantages that rational in infrastructurely, the employing spherical crown is a flap, one-way sealing, and the medium thrust is in spherical crown, and good seal performance is in light weight, reduces cost.Utilize eccentric principle, the angle that the spherical crown rotation is very little, spherical crown surface just leaves distance with valve body sealing surface, and spherical crown is rotated further subsequently, no longer produces surface friction drag, thereby reduces wearing and tearing, increases the service life, and reduces to open and close moment.Valve rod adopts two section type, and circulation area is big, and the fluid resistance is decreased little, and machine adds, assembly process simplifies.Lower valve rod is a loop bar, makes spherical crown axially adjustable, guarantees that spherical crown and sealing surface of seat inside and outside spherical surface match, and satisfies the seal pressure requirement, improves sealing.Keying speed is fast, can with the control system networking.Transmission has manually, worm drive, gas transmission and the moving multiple kind of drive of fax, and is easy to use.
Below in conjunction with drawings and Examples the utility model is elaborated
Figure is the utility model structural representation
This semispherical valve is made of valve seat, flap and valve rod, flap is spherical crown (2), spherical crown is contained in the valve body (1) by upper valve rod (4) and lower valve rod (5), spherical crown center and valve rod center line off-centre, lower valve rod is the loop bar with screw thread, and seal ring (3) is housed on the valve seat, between the valve seat inlet/outlet outside harness the pipeline of bypass valve is arranged, when guaranteeing that inlet pressure is big, reduce spherical crown and open and close moment of torsion.This semispherical valve is fit to liquid, gas and oil product medium, and working pressure is 0.1～6.4MPa, and operating temperature is-25 ℃～+ 250 ℃, can be widely used in metallurgy, chemical industry, mine, petrochemical industry and use oxygen enterprise.
Claims (3)
1. semispherical valve is made of valve seat, flap and valve rod, it is characterized in that flap is spherical crown (2), and spherical crown is contained in the valve body (1) by upper valve rod (4) and lower valve rod (5), spherical crown center and valve rod center line off-centre.
2. semispherical valve according to claim 1 is characterized in that lower valve rod is the loop bar with screw thread, and seal ring (3) is housed on the valve seat.
3. semispherical valve according to claim 1 is characterized in that outer harness between the valve seat inlet/outlet has the pipeline of bypass valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97229709 CN2342173Y (en) | 1997-10-15 | 1997-10-15 | Semi ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97229709 CN2342173Y (en) | 1997-10-15 | 1997-10-15 | Semi ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2342173Y true CN2342173Y (en) | 1999-10-06 |
Family
ID=33942422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97229709 Expired - Fee Related CN2342173Y (en) | 1997-10-15 | 1997-10-15 | Semi ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2342173Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287562A (en) * | 2011-07-20 | 2011-12-21 | 梁敬喜 | Structure of valve sealing surface |
| CN107202175A (en) * | 2017-07-28 | 2017-09-26 | 泉州市沪航阀门制造有限公司 | Horizontal large-diameter semi-ball valve |
-
1997
- 1997-10-15 CN CN 97229709 patent/CN2342173Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287562A (en) * | 2011-07-20 | 2011-12-21 | 梁敬喜 | Structure of valve sealing surface |
| CN107202175A (en) * | 2017-07-28 | 2017-09-26 | 泉州市沪航阀门制造有限公司 | Horizontal large-diameter semi-ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |