CN2615448Y - Nuclear-electric air duct stop valve - Google Patents
Nuclear-electric air duct stop valve Download PDFInfo
- Publication number
- CN2615448Y CN2615448Y CN 03221455 CN03221455U CN2615448Y CN 2615448 Y CN2615448 Y CN 2615448Y CN 03221455 CN03221455 CN 03221455 CN 03221455 U CN03221455 U CN 03221455U CN 2615448 Y CN2615448 Y CN 2615448Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- nuclear
- air duct
- air channel
- 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 provides a nuclear-electric air duct closing valve, comprising an electric device, a sleeve gasket, a valve body, a bearing, a valve seat, a packing ring, a valve spindle, a butterfly board, an end cap and the like elements, characterized in that the three-channel of the valve body employs the sleeve gasket sealing, the valve body is directly connected with the electric device, the valve seat is fixed in the valve body via the pressure jacket, which has benefic effects of simplified valve structure, excellent valve aseismatic behavior, convenient installation and maintenance, low cost and long service life.
Description
Affiliated technical field
The utility model relates to a kind of nuclear power air channel separating valve that is installed on the inside and outside place of pressurized-water reactor nuclear power plant containment, is a kind of valving.
Background technique
Use the air channel separating valve of using in pressurized-water reactor nuclear power plant containment place at present, because its security requirement is very high, complete and the performability in border promptly still can keep-up pressure under 5 operating basis earthquakes and 1 safe shutdown earthquake, the filled gland seal of traditional filler is taked in the sealing in its three road more, the form that adopts support to be connected between valve body and the Electric actuator, the weight of its overhanging end increases greatly, and improved whole position of centre of gravity, for guaranteeing its anti-seismic performance, certainly will strengthen the wall thickness of valve body, make valve mechanism design very heavyly, increased cost.
Summary of the invention
In order to overcome deficiencies such as having air channel separating valve structure heaviness now, the utility model provides a kind of nuclear power air channel separating valve, owing to adopted the form of stuffing box gland, cancelled traditional support, valve body directly is connected with Electric actuator, the flange place has increased the antidetonation ear in valve body three road, has reduced the weight of overhanging end greatly, and has lowered whole position of centre of gravity.
The technological scheme that its technical problem that solves the utility model adopts is a nuclear power air channel separating valve, form by component such as Electric actuator, stuffing box gland, valve body, bearing, valve seat, seal ring, valve shaft, butterfly plate, end caps, the flange place has increased the antidetonation ear in valve body three road, Electric actuator is connected with valve body by bolt, butterfly plate is connected by taper pin with valve shaft, be installed in the valve body, seal ring is by pressing plate and be bolted on the butterfly plate, valve seat in valve body, is equipped with O shape circle by gland, screw between valve seat and the valve body.Valve shaft is by two bearings supporting up and down, key is connected between valve shaft and the Electric actuator, stuffing box gland is installed on place, valve body three road, itself and valve body and valve shaft are by four road seal with O rings, gland passes through junction of the edges of two sheets of paper screw on valve body, be equipped with in the lower end of valve shaft and split annulus, carry out axial limiting, end cap is by being bolted to valve body lower end.
The beneficial effects of the utility model are to have simplified valve mechanism, and the anti-seismic performance of valve is good, and is convenient for installation and maintenance, and cost is low, long service life.
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is embodiment's a tectonic maps.
Among the figure: 1. Electric actuator; 2. key; 3. valve body; 4. stuffing box gland; 5.O shape circle; 6. bearing; 7. valve shaft; 8. valve seat; 9. seal ring; 10. pressing plate; 11. butterfly plate; 12. gland; 13. split annulus; 14. end cap.
Embodiment
As shown in Figure 1, Electric actuator (1) is connected with valve body (3) by bolt, butterfly plate (11) is connected by taper pin with valve shaft (7), be installed in the valve body (3), seal ring (9) is by pressing plate (10) and be bolted on the butterfly plate (11), valve seat (8) in valve body (3), is equipped with O shape circle by gland (12), screw between valve seat (8) and the valve body (3).Valve shaft (7) is by two bearings (6) supporting up and down, key (2) is connected between valve shaft (7) and the Electric actuator (1), stuffing box gland (4) is installed on valve body (3) San Daochu, itself and valve body (3) and valve shaft (7) are by four road O shapes circles (5) sealings, gland (12) passes through junction of the edges of two sheets of paper screw on valve body (3), be equipped with in the lower end of valve shaft (7) and split annulus (13), carry out axial limiting, end cap (14) is by being bolted to the lower end of valve body (3).
Claims (3)
1, a kind of nuclear power air channel separating valve is made up of component such as Electric actuator, stuffing box gland, valve body, bearing, valve seat, seal ring, valve shaft, butterfly plate, end caps, it is characterized in that: place, valve body three road adopts the stuffing box gland sealing, and valve body directly is connected with Electric actuator.
2, according to the described nuclear power of claim (1) air channel separating valve, it is characterized in that: adopt four road seal with O rings between stuffing box gland and valve body and the valve shaft.
3, according to claim (1) or (2) described nuclear power air channel separating valve, it is characterized in that: valve seat is fixed in the valve body by gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221455 CN2615448Y (en) | 2003-04-23 | 2003-04-23 | Nuclear-electric air duct stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221455 CN2615448Y (en) | 2003-04-23 | 2003-04-23 | Nuclear-electric air duct stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2615448Y true CN2615448Y (en) | 2004-05-12 |
Family
ID=34244659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03221455 Expired - Fee Related CN2615448Y (en) | 2003-04-23 | 2003-04-23 | Nuclear-electric air duct stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2615448Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588619A (en) * | 2011-01-17 | 2012-07-18 | 哈米尔顿森德斯特兰德公司 | Thrust plate for butterfly valve |
-
2003
- 2003-04-23 CN CN 03221455 patent/CN2615448Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588619A (en) * | 2011-01-17 | 2012-07-18 | 哈米尔顿森德斯特兰德公司 | Thrust plate for butterfly valve |
| US9816619B2 (en) | 2011-01-17 | 2017-11-14 | Hamilton Sundstrand Corporation | Thrust plate for butterfly 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 |