CN201126035Y - Nuclear safe level pneumatic ball valve - Google Patents
Nuclear safe level pneumatic ball valve Download PDFInfo
- Publication number
- CN201126035Y CN201126035Y CNU2007200422850U CN200720042285U CN201126035Y CN 201126035 Y CN201126035 Y CN 201126035Y CN U2007200422850 U CNU2007200422850 U CN U2007200422850U CN 200720042285 U CN200720042285 U CN 200720042285U CN 201126035 Y CN201126035 Y CN 201126035Y
- Authority
- CN
- China
- Prior art keywords
- plane
- valve
- spring
- protecting jacket
- safe level
- 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 - Lifetime
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Abstract
The utility model provides a nuclear security level pneumatic ball valve, comprising a valve body, a valve cover, a valve rod, a spring, a protective sleeve, a sealing ring, a bevel ball body and a pneumatic device; the sealing ring is installed within the protective sleeve, the spring is provided between lower end surface of valve rod stage and upper plane of the bevel ball body, the pneumatic device is a spring resetting pneumatic device, installation plane of the valve body for installing the protective sleeve is a vertical plane, the sealing ring is an inclined wedged plane, the pneumatic device is provided with a handle. The utility model has the beneficial effects that processing difficulty for the valve body is tided over, processing procedures are simplified, processing precision is improved and the seal is more reliable.
Description
Technical field
The utility model relates to a kind of valving, particularly relates to the nuclear safe level pneumatic ball valve that a kind of pressurized-water reactor nuclear power plant is used.
Background technique
Use the nuclear safe level pneumatic ball valve in pressurized-water reactor nuclear power plant nuclear island part at present, adopt mostly and go up dress formula structure, the plane that valve body is installed protecting jacket is an inclined wedge type, and protecting jacket and seal ring are the cylindrical of rule.Because the cammed surface in body cavity processing symmetry is very difficult, and for guaranteeing sealing, accurate to dimension and positional accuracy require higher again, so the processing technology complexity.
Summary of the invention
For overcoming the deficiency of existing nuclear safe level pneumatic ball valve processing difficulties, it is inclined wedge type that the utility model provides a kind of protecting jacket and seal ring, and mounting plane is the last dress formula nuclear power ball valve of vertical plane.
Summary of the invention
The technological scheme that its technical problem that solves the utility model adopts is a kind of nuclear safe level pneumatic ball valve; comprise valve body, valve gap, valve rod, spring, protecting jacket, seal ring, inclined-plane spheroid, Pneumatic actuator; seal ring is installed in the protecting jacket; between the plane spring is being housed on valve rod step lower end surface and the inclined-plane spheroid; Pneumatic actuator is a spring reset formula Pneumatic actuator; the mounting plane that valve body is laid protecting jacket is a vertical plane; seal ring and protecting jacket are cammed surface, have one handle on the Pneumatic actuator.
The beneficial effects of the utility model are the difficulty of processing that overcome valve body, have simplified processing technology, and the machining accuracy height seals more reliable.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is embodiment's a sectional structural map
Among the figure: 1. Pneumatic actuator; 2. handle; 3. valve gap; 4. valve rod; 5. spring; 6. inclined-plane spheroid; 7. protecting jacket; 8. seal ring; 9. valve body; 10. mounting plane.
Embodiment
As shown in Figure 1; the technological scheme that its technical problem that solves the utility model adopts is a kind of nuclear safe level pneumatic ball valve; comprise valve body 9; valve gap 3; valve rod 4; spring 5; protecting jacket 7; seal ring 8; inclined-plane spheroid 6; Pneumatic actuator 1; seal ring 8 is installed in the protecting jacket 7; between the plane spring 5 is being housed on valve rod 4 step lower end surfaces and the inclined-plane spheroid 6; Pneumatic actuator 1 is a spring reset formula Pneumatic actuator; when dead electricity, can automatically reset; the mounting plane 10 that valve body 9 is laid protecting jacket 7 is vertical plane; seal ring 8 is a cammed surface with protecting jacket 7; have one handle 2 on the Pneumatic actuator 1, rotatable handles 2 carries out manually-operable under unusual service condition.
Claims (2)
1, a kind of nuclear safe level pneumatic ball valve; comprise valve body, valve gap, valve rod, spring, protecting jacket, seal ring, inclined-plane spheroid, Pneumatic actuator; seal ring is installed in the protecting jacket; between the plane spring is being housed on valve rod step lower end surface and the inclined-plane spheroid; it is characterized in that: described Pneumatic actuator is a spring reset formula Pneumatic actuator; the mounting plane that described valve body is laid protecting jacket is a vertical plane, and described seal ring and described protecting jacket are cammed surface.
2, nuclear safe level pneumatic ball valve according to claim 1 is characterized in that: have one handle on the described Pneumatic actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200422850U CN201126035Y (en) | 2007-11-15 | 2007-11-15 | Nuclear safe level pneumatic ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200422850U CN201126035Y (en) | 2007-11-15 | 2007-11-15 | Nuclear safe level pneumatic ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201126035Y true CN201126035Y (en) | 2008-10-01 |
Family
ID=39999504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200422850U Expired - Lifetime CN201126035Y (en) | 2007-11-15 | 2007-11-15 | Nuclear safe level pneumatic ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201126035Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2411186A1 (en) * | 2009-03-26 | 2012-02-01 | Sandvik Mining and Construction Oy | Sealing arrangement in rotating control valve of pressure fluid-operated percussion device |
| CN103453172A (en) * | 2012-05-28 | 2013-12-18 | 中核苏阀科技实业股份有限公司 | Valve for reactor core neutron fluence rate measuring system |
-
2007
- 2007-11-15 CN CNU2007200422850U patent/CN201126035Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2411186A1 (en) * | 2009-03-26 | 2012-02-01 | Sandvik Mining and Construction Oy | Sealing arrangement in rotating control valve of pressure fluid-operated percussion device |
| EP2411186A4 (en) * | 2009-03-26 | 2014-06-25 | Sandvik Mining & Constr Oy | Sealing arrangement in rotating control valve of pressure fluid-operated percussion device |
| CN103453172A (en) * | 2012-05-28 | 2013-12-18 | 中核苏阀科技实业股份有限公司 | Valve for reactor core neutron fluence rate measuring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081001 |