CN2784678Y - Steam valve shut-off device - Google Patents
Steam valve shut-off device Download PDFInfo
- Publication number
- CN2784678Y CN2784678Y CN 200520030619 CN200520030619U CN2784678Y CN 2784678 Y CN2784678 Y CN 2784678Y CN 200520030619 CN200520030619 CN 200520030619 CN 200520030619 U CN200520030619 U CN 200520030619U CN 2784678 Y CN2784678 Y CN 2784678Y
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- Prior art keywords
- piston
- end surface
- valve
- steam
- hole
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- Expired - Fee Related
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Abstract
The utility model discloses a steam valve cutting device, which belongs to a valve. The utility model need solve the technical problem that the steam valve cutting device is designed and has the performances that the valve is opened and closed with small electromagnetic force, and the service life is long under the conditions of high temperature, high pressure and steam medium. The utility model has the technical scheme that the steam valve cutting device comprises a valve body, a partition board, an upper cover, a flow discharging hole, a reflowing hole, an electric magnet, a swinging arm, a controlling rod and a spring. A piston is arranged in a hole in an upper cover in a sliding manner cooperation and the spring is arranged between the upper end surface of the piston and the inner end surface of the upper cover. A throttling hole is arranged on the end surface of the piston, and the hole diameter is smaller than that of the flow discharging hole on the upper cover. A sealing pad is arranged on the piston end surface which is opposite to the end surface of the opening of the valve body and the end surface of the partition board, and an O-shaped sealing ring is arranged on the outer circle surface of the piston. The utility model is mainly used for the valve cutting device of a high temperature steam medium and can also be used for the valve cutting device of a liquid medium.
Description
Technical field:
The utility model relates to a kind of valve, particularly a kind of steam valve shut-off means.
Background technique:
The valve shut-off means of application number 02279107.8, disclosing little electromagnetic force of a kind of usefulness or manual force can open and close valve, the structure of this valve shut-off means is, valve casing, dividing plate, barrier film and loam cake, the top of loam cake has one by last, cut off device case and interior controlling rod thereof down, swing arm, the shut-off means that electromagnet is formed, housing at the valve casing osculum, water hole, road one side of being close in barrier film and the loam cake also is provided with one and is close on water hole, road and the shut-off means, the cavity of hole in the lower shell body and controlling rod end face top is connected, and controlling rod is provided with spring.Barrier film in this valve shut-off means is an elastic caoutchouc leather cup structure, and it seals is plane contact, and area is bigger, when dirt particle, will produce the gap, causes shallow leakage; This valve shut-off means is when being used for high-temperature steam, and owing to frequently stirring up and down of leather cup, the erosion of High Temperature High Pressure can make its distortion be full of cracks, and the life-span is very short, even can't use at all.
Summary of the invention:
The utility model technical issues that need to address are a kind of steam valve shut-off meanss of design, not only have the function of little electromagnetic force opening and closing valve, but also have in long performance of steam medium following life-span of condition.The technical solution of the utility model is, a kind of steam valve shut-off means, it comprises valve body, dividing plate, loam cake, discharge orifice, return port and electromagnet, swing arm, controlling rod and spring, it is characterized in that: the piston cunning fits in the hole in the loam cake, be provided with a spring between the upper-end surface of piston and the interior edge face of loam cake, piston end face is provided with throttle orifice, its aperture less than on the aperture of the discharge orifice that covers, on the piston end surface relative with the dividing plate end face, be provided with sealing gasket with the end face of valve body opening.The periphery of piston is provided with the O RunddichtringO.The utility model is owing to change the barrier film of leather cup structure into piston structure, thus this valve shut-off means have compared with the prior art be quick on the draw, working stability is reliable and the advantage of long service life.
Description of drawings:
Fig. 1 is a sectional view of the present utility model, and Fig. 2 is the sectional view of the A-A of Fig. 1.
Embodiment:
In conjunction with above accompanying drawing the utility model is elaborated, the difference of the shut-off means of this valve shut-off means and the patent No. 02279107.8 just changes leather cup formula barrier film into the piston 5 that metal is made, cavity in the loam cake is made the hole slippery with piston, between the interior edge face of the upper-end surface of piston and loam cake 9, be provided with spring 8 (referring to Fig. 1), identical with 02279107.8 patent in addition, also be provided with and be close to road water outlet 6 and be close to the switching mechanism of road backwater hole 10 and Electromagnetic Control.In order to improve the sealability of valve, be respectively equipped with seal ring 4,7 (referring to Fig. 1) on the piston end face He on the cylndrical surface, seal ring 4 is lived the end face seal of valve body 1, dividing plate 2, seal ring 7 makes piston and cylinder body sealing, be provided with throttle orifice 3 on piston end face, the diameter of throttle orifice is less than discharge orifice.
Control principle of the present utility model is that when electromagnet was disconnected power supply, controlling rod sealed the discharge orifice of loam cake under spring action, high temperature and high pressure steam is cut off, when needing steam supply, connect power supply, the electromagnet action, the elastic force that pendulum overcomes spring in the swing arm makes on the controlling rod and moves, discharge orifice is opened, and steam descends the cavity vapour pressure in the loam cake through being close to the cavity of resorption that the road osculum enters valve body, the interior high pressure steam of valve body this moment will move on the piston, the normal steam that supplies so shut-off means is opened.Stop steam supply as needs, only need cut off the electricity supply, controlling rod moves down the discharge orifice that covers in the sealing under spring action, and the spring on the piston moves down valve closing with piston.
Claims (2)
1, a kind of steam valve shut-off means, it comprises valve body, dividing plate, loam cake, discharge orifice, return port and electromagnet, swing arm, controlling rod and spring, it is characterized in that: the piston cunning fits in the hole in the loam cake, be provided with a spring between the upper-end surface of piston and the interior edge face of loam cake, piston end face is provided with throttle orifice, its aperture less than on the aperture of the discharge orifice that covers, on the piston end surface relative with the dividing plate end face, be provided with sealing gasket with the end face of valve body opening.
2 steam valve shut-off meanss according to claim 1, it is characterized in that: the periphery of piston is provided with the O RunddichtringO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520030619 CN2784678Y (en) | 2005-04-28 | 2005-04-28 | Steam valve shut-off device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520030619 CN2784678Y (en) | 2005-04-28 | 2005-04-28 | Steam valve shut-off device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2784678Y true CN2784678Y (en) | 2006-05-31 |
Family
ID=36771651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520030619 Expired - Fee Related CN2784678Y (en) | 2005-04-28 | 2005-04-28 | Steam valve shut-off device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2784678Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112280620A (en) * | 2020-10-28 | 2021-01-29 | 宁波捷通机械有限公司 | Aromatic plant extract distillation concentration treatment method |
-
2005
- 2005-04-28 CN CN 200520030619 patent/CN2784678Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112280620A (en) * | 2020-10-28 | 2021-01-29 | 宁波捷通机械有限公司 | Aromatic plant extract distillation concentration treatment method |
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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: 20060531 |