CN203146944U - Corrosion-resistant and abrasion-resistant duplex spring safety valve - Google Patents
Corrosion-resistant and abrasion-resistant duplex spring safety valve Download PDFInfo
- Publication number
- CN203146944U CN203146944U CN 201320025567 CN201320025567U CN203146944U CN 203146944 U CN203146944 U CN 203146944U CN 201320025567 CN201320025567 CN 201320025567 CN 201320025567 U CN201320025567 U CN 201320025567U CN 203146944 U CN203146944 U CN 203146944U
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- Prior art keywords
- valve
- resistant
- spring
- safety valve
- corrosion
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- 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 and abrasion-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, 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, and an annular sealing protrusion which is outwardly protruded is arranged on a sealing surface of a joint of the valve clack and the valve seat. The corrosion-resistant and abrasion-resistant duplex spring safety valve has the advantages that the corrosion-resistant and abrasion-resistant duplex spring safety valve is simple and reasonable in structure, convenient to use and good in abrasion resistance and corrosion resistance, the good sealing performance can be kept after the corrosion-resistant and abrasion-resistant duplex spring safety valve is used for a long time and is abraded, the service life of the corrosion-resistant and abrasion-resistant duplex spring safety valve is prolonged, and the serviceability 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 resistant, wear-resisting 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.After the long-time use of existing Duplex safety valve, the sealing surface of its flap and valve seat connecting part is frayed easily, and then cause sealing to descend, 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 using effect of safety valve.
The model utility content
The purpose of this utility model provides a kind of corrosion resistant, wear-resisting type Duplex safety valve, after solving the long-time use of Duplex safety valve traditional in the prior art, the sealing surface of its flap and valve seat connecting part is frayed easily, and then cause sealing to descend, 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 corrosion resistant, the wear-resisting 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, described flap pushes against in the valve seat upper end by the pressure of compression spring, and the sealing surface of described flap and valve seat connecting part is provided with the ring packing projection of outside protrusion.
Described a kind of corrosion resistant, wear-resisting 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 resistant, wear-resisting 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 resistant, wear-resisting 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 sealing surface of employing in flap and valve seat connecting part arranges the design of the ring packing projection of outside protrusion, promoted the wear-resisting property of flap effectively, uses for a long time still can keep better seal after frayed; 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 to the corrosion influence of component in the valve body, having prolonged working life, guaranteed the normal use 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 resistant, the wear-resisting 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 7 lower ends are equipped with the flap 9 corresponding with valve seat 2, flap 9 pushes against in valve seat 2 upper ends by the pressure of compression spring 7, and the sealing surface of flap 9 and valve seat 2 connecting parts is provided with the ring packing projection 10 of outside protrusion.
Claims (4)
1. corrosion resistant, the wear-resisting 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, described flap pushes against in the valve seat upper end by the pressure of compression spring, and the sealing surface of described flap and valve seat connecting part is provided with the ring packing projection of outside protrusion.
2. a kind of corrosion resistant according to claim 1, wear-resisting 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.
3. a kind of corrosion resistant according to claim 1, wear-resisting type Duplex safety valve, 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 resistant according to claim 1, wear-resisting type Duplex safety valve 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 201320025567 CN203146944U (en) | 2013-01-17 | 2013-01-17 | Corrosion-resistant and abrasion-resistant duplex spring safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025567 CN203146944U (en) | 2013-01-17 | 2013-01-17 | Corrosion-resistant and abrasion-resistant duplex spring safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146944U true CN203146944U (en) | 2013-08-21 |
Family
ID=48974468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320025567 Expired - Fee Related CN203146944U (en) | 2013-01-17 | 2013-01-17 | Corrosion-resistant and abrasion-resistant duplex spring safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146944U (en) |
-
2013
- 2013-01-17 CN CN 201320025567 patent/CN203146944U/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 |