CN203146941U - Corrosion-resistant duplex spring safety valve - Google Patents
Corrosion-resistant duplex spring safety valve Download PDFInfo
- Publication number
- CN203146941U CN203146941U CN 201320025386 CN201320025386U CN203146941U CN 203146941 U CN203146941 U CN 203146941U CN 201320025386 CN201320025386 CN 201320025386 CN 201320025386 U CN201320025386 U CN 201320025386U CN 203146941 U CN203146941 U CN 203146941U
- Authority
- CN
- China
- Prior art keywords
- valve
- corrosion
- spring
- safety valve
- guide pad
- 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 corrosion-resistant duplex spring safety valve which comprises a valve and a valve seat. The valve is connected with the valve seat, an adjusting nut is screwed at the upper end of the valve, an upper spring guide pad is fixedly mounted on the inner top of the adjusting nut, a lower spring guide pad corresponding to the upper spring guide pad is slidably arranged in the valve, spring seats are respectively arranged in the upper spring guide pad and the lower spring guide pad, a compression spring is connected between the two spring seats, a corrugated pipe which is made of corrosion-resistant materials is sleeved on the outer wall of the lower spring guide pad, and a valve clack corresponding to the valve seat is mounted at the lower end of the lower spring guide pad, and is tightly abutted to the upper end of the valve seat by the aid of the pressure of the compression spring. The corrosion-resistant duplex spring safety valve has the advantages that the corrosion-resistant duplex spring safety valve is simple and reasonable in structure and convenient to use, the corrosion resistance of the safety is effectively improved, corrosion influence of corrosive media on parts inside the valve is prevented, the service life of the corrosion-resistant duplex spring safety valve is prolonged, and a service effect of the safety valve is guaranteed.
Description
Technical field
The utility model relates to a kind of safety valve, is specially a kind of corrosion-proof type Duplex safety valve.
Background technique
Direct spring loaded safety valve refer to rely on spring elastic pressure and with Sealing lockings such as the valve of valve or plungers, in case the high pressure that produces after the pressure anomaly of pressurized container will overcome the spring pressure of safety valve, so blocking device is backed down, formed a pressure release passage, high pressure is released.Direct spring loaded safety valve is mainly used in pressurized boiler, container, pipeline, to guarantee that pressurized system normally moves.Existing Duplex safety valve decay resistance is not good, and be subjected to the Korrosionsmedium corrosion after long-time the use easily and cause the degree of regulation of safety valve and spring force to descend, the lost of life, and then influence the using effect of safety valve.
The model utility content
The purpose of this utility model provides a kind of corrosion-proof type Duplex safety valve, not good to solve Duplex safety valve decay resistance traditional in the prior art, be subjected to the Korrosionsmedium corrosion after long-time the use easily and cause the degree of regulation of safety valve and spring force to descend, the lost of life influences the problem of safety valve using effect.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of corrosion-proof type Duplex safety valve, include the valve body and the valve seat that are connected, it is characterized in that: described valve body upper end has screwed togather adjusting nut, described adjusting nut inner top is installed with upper spring guiding pad, slide in the described valve body and be provided with the lower spring guiding pad corresponding with upper spring guiding pad, on described, be respectively equipped with spring seat in the lower spring guiding pad, be connected with the compression spring between described two spring seats, described lower spring guiding pad outer wall is with the bellows that resistant material is made, lower spring guiding pad lower end is equipped with the flap corresponding with valve seat, and described flap pushes against in the valve seat upper end by the pressure of compression spring.
Described a kind of corrosion-proof type Duplex safety valve is characterized in that: described bellows two ends are fixedly connected on respectively between the lower end boss of valve interior wall and lower spring guiding pad.
Described a kind of corrosion-proof type Duplex safety valve is characterized in that: described valve seat lower end is equipped with pipe joint by the pipe joint nut.
Described a kind of corrosion-proof type Duplex safety valve is characterized in that: described valve body upper end has screwed togather locking nut below adjusting nut.
The beneficial effects of the utility model are:
The utility model is simple and reasonable, easy to use, employing arranges the bellows design that resistant material is made at lower spring guiding pad outer wall, promoted the corrosion resistance of safety valve effectively, prevent that Korrosionsmedium is to the corrosion influence of component in the valve body, prolong working life, guaranteed the using effect of safety valve.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of corrosion-proof type Duplex safety valve, include the valve body 1 and the valve seat 2 that are connected, valve body 1 upper end has screwed togather adjusting nut 3, adjusting nut 3 inner tops are installed with upper spring guiding pad 4, slide in the valve body 1 to be provided with the upper spring guiding and fill up 4 corresponding lower spring guiding pads 5, on, lower spring guiding pad 4, be respectively equipped with spring seat 6 in 5, be connected with compression spring 7 between two spring seats 6, lower spring guiding pad 5 outer walls are with the bellows 8 that resistant material is made, lower spring guiding pad 5 lower ends are equipped with the flap 9 corresponding with valve seat 2, and flap 9 pushes against in valve seat 2 upper ends by the pressure of compression spring 7.
Claims (4)
1. corrosion-proof type Duplex safety valve, include the valve body and the valve seat that are connected, it is characterized in that: described valve body upper end has screwed togather adjusting nut, described adjusting nut inner top is installed with upper spring guiding pad, slide in the described valve body and be provided with the lower spring guiding pad corresponding with upper spring guiding pad, on described, be respectively equipped with spring seat in the lower spring guiding pad, be connected with the compression spring between described two spring seats, described lower spring guiding pad outer wall is with the bellows that resistant material is made, lower spring guiding pad lower end is equipped with the flap corresponding with valve seat, and described flap pushes against in the valve seat upper end by the pressure of compression spring.
2. a kind of corrosion-proof type Duplex safety valve according to claim 1 is characterized in that: described bellows two ends are fixedly connected on respectively between the lower end boss of valve interior wall and lower spring guiding pad.
3. a kind of corrosion-proof type Duplex safety valve according to claim 1, it is characterized in that: described valve seat lower end is equipped with pipe joint by the pipe joint nut.
4. a kind of corrosion-proof type Duplex safety valve according to claim 1 is characterized in that: screwed togather locking nut on the described valve body below adjusting nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025386 CN203146941U (en) | 2013-01-17 | 2013-01-17 | Corrosion-resistant duplex spring safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025386 CN203146941U (en) | 2013-01-17 | 2013-01-17 | Corrosion-resistant duplex spring safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146941U true CN203146941U (en) | 2013-08-21 |
Family
ID=48974465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320025386 Expired - Fee Related CN203146941U (en) | 2013-01-17 | 2013-01-17 | Corrosion-resistant duplex spring safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146941U (en) |
-
2013
- 2013-01-17 CN CN 201320025386 patent/CN203146941U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20160117 |
|
| EXPY | Termination of patent right or utility model |