CN203098987U - Anti-corrosion durable duplex spring type safety valve - Google Patents
Anti-corrosion durable duplex spring type safety valve Download PDFInfo
- Publication number
- CN203098987U CN203098987U CN 201320025605 CN201320025605U CN203098987U CN 203098987 U CN203098987 U CN 203098987U CN 201320025605 CN201320025605 CN 201320025605 CN 201320025605 U CN201320025605 U CN 201320025605U CN 203098987 U CN203098987 U CN 203098987U
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- China
- Prior art keywords
- valve
- spring
- safety valve
- spring guiding
- valve seat
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- Expired - Fee Related
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Abstract
The utility model discloses an anti-corrosion durable duplex spring type safety valve. The anti-corrosion durable duplex spring type safety valve comprises a valve body and a valve seat which are connected mutually, an adjusting nut is matched with the upper end of the valve body in a screwed mode, an upper spring guiding gasket is fixedly installed at the top in the adjusting nut, a lower spring guiding gasket corresponding to the upper spring guiding gasket is arranged in the valve body in a sliding mode, spring bases are arranged in the upper spring guiding gasket and the lower spring guiding gasket respectively, and a compression spring is connected between the two spring bases. A corrugated pipe made of anti-corrosion material is sleeved on the outer wall of the lower spring guiding gasket, a valve clack corresponding to the valve seat is installed at the lower end of the lower spring guiding gasket, a rotatable sealing ring matched with the valve clack is sleeved on the end face of the upper end of the valve seat, and the valve clack abuts against the sealing ring at the upper end of the valve seat through pressure of the compression spring to form sealing. The anti-corrosion durable duplex spring type safety valve is simple and reasonable in structure, the phenomenon that a sealing face is damaged due to rotation of the valve clack is effectively prevented, anti-corrosion performance of the safety valve is improved, service life is prolonged, and normal use of the safety valve is ensured.
Description
Technical field
The utility model relates to a kind of safety valve, is specially a kind of anticorrosion durable 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.In the existing Duplex safety valve using process, sometimes need cracking pressure is adjusted, and when being rotated adjusting, flap is driven to rotate, and then cause sealing surface impaired easily, sealing descends, and be subjected to the Korrosionsmedium corrosion easily and cause the degree of regulation of safety valve and spring force to descend, shorten working life, influence the using effect of safety valve.
The model utility content
The purpose of this utility model provides a kind of anticorrosion durable type Duplex safety valve, when being rotated adjusting, flap is driven to rotate to solve Duplex safety valve traditional in the prior art, and then cause sealing surface impaired easily, sealing descends, and be subjected to the Korrosionsmedium corrosion easily and cause the degree of regulation of safety valve and spring force to descend, shorten working 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 anticorrosion durable 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 and the corresponding lower spring guiding of upper spring guiding pad pad, on described, be respectively equipped with spring seat in the lower spring guiding pad, be connected with pressure 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 and the corresponding flap of valve seat, described valve seat upper end end face is with the rotating seal ring that matches with flap, and described flap is pushed against on the seal ring of valve seat upper end by the pressure of pressure spring and forms sealing.
Described a kind of anticorrosion durable 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 anticorrosion durable type Duplex safety valve, it is characterized in that: described valve seat lower end is equipped with pipe joint by the pipe joint nut.
Described a kind of anticorrosion durable 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, the rotating seal ring design that employing matches with flap in the end face setting of valve seat upper end, make safety valve when carrying out the cracking pressure adjustment, if flap is followed valve rod and is rotated, then seal ring also and then rotates, and has prevented effectively owing to flap rotates the generation that causes the sealing surface damaged phenomenon; Employing is provided with the bellows design that resistant material is made at lower spring guiding pad outer wall, promoted the anti-corrosion capability of safety valve effectively, prevent the corrosion influence of Korrosionsmedium, prolonged working life, guaranteed the normal use of safety valve component in the valve body.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of anticorrosion durable 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 and be provided with and upper spring guiding pad 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 pressure 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 and valve seat 2 corresponding flaps 9, valve seat 2 upper end end faces are with the rotating seal ring 10 that matches with flap 9, and flap 9 is pushed against on the seal ring 10 of valve seat 2 upper ends by the pressure of pressure spring 7 and forms sealing.
Claims (4)
1. anticorrosion durable 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 and the corresponding lower spring guiding of upper spring guiding pad pad, on described, be respectively equipped with spring seat in the lower spring guiding pad, be connected with pressure 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 and the corresponding flap of valve seat, described valve seat upper end end face is with the rotating seal ring that matches with flap, and described flap is pushed against on the seal ring of valve seat upper end by the pressure of pressure spring and forms sealing.
2. a kind of anticorrosion durable 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 anticorrosion durable 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 anticorrosion durable type Duplex safety valve according to claim 1 is characterized in that: described valve body upper end has screwed togather locking nut below adjusting nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025605 CN203098987U (en) | 2013-01-17 | 2013-01-17 | Anti-corrosion durable duplex spring type safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025605 CN203098987U (en) | 2013-01-17 | 2013-01-17 | Anti-corrosion durable duplex spring type safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098987U true CN203098987U (en) | 2013-07-31 |
Family
ID=48850392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320025605 Expired - Fee Related CN203098987U (en) | 2013-01-17 | 2013-01-17 | Anti-corrosion durable duplex spring type safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098987U (en) |
-
2013
- 2013-01-17 CN CN 201320025605 patent/CN203098987U/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: 20130731 Termination date: 20160117 |
|
| EXPY | Termination of patent right or utility model |