CN207437860U - A kind of two-stage decompression safety valve - Google Patents
A kind of two-stage decompression safety valve Download PDFInfo
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- CN207437860U CN207437860U CN201720517957.2U CN201720517957U CN207437860U CN 207437860 U CN207437860 U CN 207437860U CN 201720517957 U CN201720517957 U CN 201720517957U CN 207437860 U CN207437860 U CN 207437860U
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- pressure
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- high voltage
- spring
- safety valve
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Abstract
The utility model provides a kind of two-stage decompression safety valve.Including high-pressure chamber portion and high voltage power portion, wherein, the import in the high-pressure chamber portion is connected with the high voltage power bar in the high voltage power portion, and the high voltage power bar is connected with the pressure storehouse that turns by drive train seals.The two-stage decompression safety valve of the utility model, principle is first to carry out first order decompression using high pressure chest, then realizes that the second level is depressurized by high voltage power bar.The utility model two-stage decompression safety valve can carry the up to high pressure of 75MPa.Hydraulic pressure area suffered by drive train seals is more than hydraulic pressure area suffered by high voltage power bar, realizes pressure reduction.Very there is practical value.
Description
Technical field
The utility model is related to fluid device field more particularly to a kind of two-stage decompression safety valves.
Background technology
Safety valve is that opening and closing element is lower in normally off by external force effect, when the pressure medium rise in equipment or pipeline is super
When crossing specified value, by outside system discharge medium prevent that pressure medium in pipeline or equipment is more than the particular usage valve of specified value
Door.Safety valve belongs to automatic valve class, is mainly used for boiler, on pressure vessels and pipes, and control pressure is no more than specified value, to people
Body safety and equipment have run important protective effect.
Utility model content
The utility model provides a kind of two-stage decompression safety valve, which is characterized in that is pressed including high-pressure chamber portion and height
Power portion, wherein, the import in the high-pressure chamber portion is connected with the high voltage power bar in the high voltage power portion, the high pressure
Power rail is connected with the pressure storehouse that turns by drive train seals；
Hydraulic pressure area suffered by the drive train seals is more than hydraulic pressure area suffered by the high voltage power bar.
It is preferred that the two-stage decompression safety valve further includes the pressure regulating part being connected with high voltage power portion, wherein, institute
The pressure regulating part stated includes connecting with the seal head for turning that storehouse is pressed to be connected and spring loaded mast, with the spring loaded mast
The spring transfer block that connects, the spring loads chamber being connected with the spring transfer block, the pressure arranged on the spring loads intracavitary portion
Adjust spring and the pipe regulating screw nut arranged on pressure regulating spring connection, described pressure regulating spring one end and positioning
And pressure relief opening connection.
Compared with prior art, the beneficial effects of the utility model are as follows：
The two-stage decompression safety valve of the utility model, principle is first to carry out first order decompression using high pressure chest, then is passed through
High voltage power bar realizes second level decompression.The utility model two-stage decompression safety valve can carry the up to high pressure of 75MPa.Transmission
Hydraulic pressure area suffered by sealing element is more than hydraulic pressure area suffered by high voltage power bar, realizes pressure reduction.
Description of the drawings：
Fig. 1 is the utility model two-stage decompression safety valve structure figure.
Fig. 2 is the utility model two-stage decompression safety valve partial enlarged view.
Specific embodiment
With reference to specific embodiment, the utility model is further described, to more fully understand that this practicality is new
Type.
As shown in Figure 1, the utility model provides a kind of two-stage decompression safety valve, including high-pressure chamber portion and high voltage power
Portion, wherein, the import 1 in high-pressure chamber portion is connected with the high voltage power bar 2 in high voltage power portion, and high voltage power bar 2 is logical with turning pressure storehouse 4
Drive train seals 3 are crossed to connect.
As shown in Fig. 2, hydraulic pressure area A suffered by drive train seals 3 is more than hydraulic pressure area B suffered by the high voltage power bar 2.
Two-stage decompression safety valve further includes the pressure regulating part being connected with high voltage power portion, wherein, pressure regulating part includes
With the spring transfer block 7 for turning the pressure seal head that be connected of storehouse 4 and spring loaded mast 5, being connected with spring loaded mast 5 and spring switching
Spring loads chamber 8 that block 7 connects and connects the pressure regulating spring 10 inside spring loads chamber 8 with pressure regulating spring 10
The pipe regulating screw nut 9 connect, 10 one end of pressure regulating spring are connected with positioning and pressure relief opening 11.Spring loaded mast 5 and spring turn
Block 7 is connect to connect by guide ring 6.
Compared with prior art, the beneficial effects of the utility model are as follows：
The two-stage decompression safety valve of the utility model, principle is first to carry out first order decompression using high pressure chest, then is passed through
High voltage power bar realizes second level decompression.The utility model two-stage decompression safety valve can carry the up to high pressure of 75MPa.Transmission
Hydraulic pressure area suffered by sealing element is more than hydraulic pressure area suffered by high voltage power bar, realizes pressure reduction.
Specific embodiment of the utility model is described in detail above, but it is intended only as example, and this practicality is new
Type is not restricted to particular embodiments described above.To those skilled in the art, it is any that the utility model is carried out
Equivalent modifications and substitute also all among the scope of the utility model.Therefore, the spirit and model of the utility model are not being departed from
Lower made impartial conversion and modification are enclosed, should all be covered in the scope of the utility model.
Claims (2)
1. a kind of two-stage decompression safety valve, which is characterized in that including high-pressure chamber portion and high voltage power portion, wherein, the height
The import of pressure cavity portion is connected with the high voltage power bar in the high voltage power portion, and the high voltage power bar passes through with turning pressure storehouse
Drive train seals connect；Hydraulic pressure area suffered by the drive train seals is more than hydraulic pressure area suffered by the high voltage power bar.
2. two-stage decompression safety valve according to claim 1, which is characterized in that the two-stage decompression safety valve further includes
The pressure regulating part being connected with high voltage power portion, wherein, the pressure regulating part includes being connected with turn pressure storehouse close
End socket and spring loaded mast, the spring transfer block being connected with the spring loaded mast, the bullet being connected with the spring transfer block
Spring LOADED CAVITY, the pressure regulating spring arranged on the spring loads intracavitary portion and the pressure arranged on pressure regulating spring connection
Adjusting nut, described pressure regulating spring one end are connected with positioning and pressure relief opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720517957.2U CN207437860U (en) | 2017-05-11 | 2017-05-11 | A kind of two-stage decompression safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720517957.2U CN207437860U (en) | 2017-05-11 | 2017-05-11 | A kind of two-stage decompression safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207437860U true CN207437860U (en) | 2018-06-01 |
Family
ID=62394858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720517957.2U Active CN207437860U (en) | 2017-05-11 | 2017-05-11 | A kind of two-stage decompression safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207437860U (en) |
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2017
- 2017-05-11 CN CN201720517957.2U patent/CN207437860U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |