CN101435513A - Nuclear safe level pneumatic ball valve - Google Patents
Nuclear safe level pneumatic ball valve Download PDFInfo
- Publication number
- CN101435513A CN101435513A CNA2007101903354A CN200710190335A CN101435513A CN 101435513 A CN101435513 A CN 101435513A CN A2007101903354 A CNA2007101903354 A CN A2007101903354A CN 200710190335 A CN200710190335 A CN 200710190335A CN 101435513 A CN101435513 A CN 101435513A
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- valve
- plane
- spring
- ball valve
- pneumatic
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Abstract
The invention provides a pneumatic ball valve with nuclear safety standards. The pneumatic ball valve comprises a valve body, a valve cover, a valve rod, a spring, a protective sleeve, a sealing ring, an oblique plane ball body and a pneumatic device, wherein the sealing ring is arranged in the protective sleeve; the spring is arranged between the lower end face of the valve rod step and the upper plane of the oblique plane ball body; the pneumatic device is the spring resetting type pneumatic device; the mounting plane, on which the protective sleeve is arranged, of the valve body is a vertical plane; the sealing ring and the protective sleeve are oblique wedge planes; and the pneumatic device is provided with a handle. The pneumatic ball valve has the advantages of overcoming the difficulty of processing the valve body, simplifying the manufacturing process, improving processing precision and making the sealing more reliable.
Description
Technical field
The present invention relates to a kind of valving, particularly relate 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, the invention provides a kind of protecting jacket and seal ring is inclined wedge type, and mounting plane is the last dress formula nuclear power ball valve of vertical plane.
Summary of the invention
The technical solution adopted for the present invention to solve the technical problems 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, and seal ring and protecting jacket are cammed surface, have one handle on the Pneumatic actuator.
The invention has the beneficial effects as follows the difficulty of processing that has overcome valve body, simplified processing technology, the machining accuracy height seals more reliable.
Description of drawings
The invention will be further described 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 technical solution adopted for the present invention to solve the technical problems 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 |
|---|---|---|---|
| CNA2007101903354A CN101435513A (en) | 2007-11-15 | 2007-11-15 | Nuclear safe level pneumatic ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101903354A CN101435513A (en) | 2007-11-15 | 2007-11-15 | Nuclear safe level pneumatic ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101435513A true CN101435513A (en) | 2009-05-20 |
Family
ID=40710088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101903354A Pending CN101435513A (en) | 2007-11-15 | 2007-11-15 | Nuclear safe level pneumatic ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101435513A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470804A (en) * | 2013-09-23 | 2013-12-25 | 清华大学 | Safety level electric ball valve |
| CN109578608A (en) * | 2018-12-28 | 2019-04-05 | 张叶华 | A kind of pneumatic full packet ball valve |
-
2007
- 2007-11-15 CN CNA2007101903354A patent/CN101435513A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470804A (en) * | 2013-09-23 | 2013-12-25 | 清华大学 | Safety level electric ball valve |
| CN109578608A (en) * | 2018-12-28 | 2019-04-05 | 张叶华 | A kind of pneumatic full packet ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090520 |