CN2142909Y - Multi-stage pressure relief device - Google Patents
Multi-stage pressure relief device Download PDFInfo
- Publication number
- CN2142909Y CN2142909Y CN 92242165 CN92242165U CN2142909Y CN 2142909 Y CN2142909 Y CN 2142909Y CN 92242165 CN92242165 CN 92242165 CN 92242165 U CN92242165 U CN 92242165U CN 2142909 Y CN2142909 Y CN 2142909Y
- Authority
- CN
- China
- Prior art keywords
- piston
- pressure
- housing
- slideway
- spring
- 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 relates to a multi-stage pressure reducing device. The multi-stage pressure reducing device is composed of a plurality of layers of shell bodies, and a resistance pressure reducing device which is arranged on each layer of shell body. A liquid state working medium is filled between adjacent shell bodies. The resistance pressure reducing device is composed of a piston, a spring, and a piston slideway. The piston slideway is arranged on each layer of shell body. The piston passes through the piston slideway, and the piston and the piston slideway are close matched to keep sealed. Spring sleeves are installed on the same side of the piston. The inner and outer differential pressure of the shell bodies can be reduced.
Description
The utility model belongs to decompressor, particularly a kind of multi-step pressure reducing apparatus that can be used for ultrahigh pressure pressurized container and ultradeep dive storehouse.
The pressure casing of high pressure vessel and submersible is all bearing very big inside and outside differential pressure at present.For the sake of security, take multiple measure during manufacturing, as selected special Materials with High Strength for use, increased wall thickness or the like.This housing has had a specified compressive strength once being fabricated as finished product, will improve and then become out of the question thing.The pressure reduction that inside and outside wall is very big is unsafe factor all the time.
The purpose of this utility model is to provide a kind of decompressor, adopts this device manufacturing hyperpressure container and ultradeep dive storehouse can reduce the pressure reduction of housing both sides, increases Security, and can improve whole compressive strength as required.
The utility model is achieved through the following technical solutions: a kind of multi-step pressure reducing apparatus, it is made up of multilayer shell and the resistance decompressor that is contained on each layer housing.Between the adjacent two layers housing support is arranged, make all to form the underpressure chamber that connects between the adjacent two layers housing, be full of liquid working media in the underpressure chamber.The resistance decompressor is made up of piston, spring and piston slideway.The piston slideway is opened on each layer housing, and piston passes slideway and closely cooperates to keep sealing with slideway.Be with spring on the piston, all springs all are contained in the same side of its place housing.
When the utility model used, the pressure of zone of high pressure reduced pressure to low depressor transmission step by step by multistage resistance decompressor, and the inside and outside both sides of each layer housing pressure reduction reduces greatly.Change the Young's modulus of spring or the number of plies of increase and decrease housing and can change whole compressive strength.
Description of drawings:
Accompanying drawing 1-the utility model is used for the embodiment of ultrahigh pressure vessel
Accompanying drawing 2-the utility model is used for the embodiment of submersible
(1) frame (2) supports (3) inner housing (4), (11), (13) underpressure chamber
(5) support fastening screw (6) piston (7) spring (8) piston slideway
(9) liquid working media replenishment valve (12) liquid working media opening.
Subtracting type in addition is example: in the embodiment shown in Figure 1, shown inner housing (3) charges into the gas that a pressure is P, and establishing frame (1) outer is a barometric pressure, and the frictional force between piston and slideway is ignored.After charging into pressure P, piston S1 will move under the P effect, owing between each underpressure chamber, be full of liquid medium, so along with moving of S1, other each piston is also along with moving, for the ease of analyzing explanation, make piston S1=S2=S3=S4=1 square centimeter, spring L1, L2, L3, the coefficient of stiffiness of L4 equates, because S1=S2=S3=S4 and liquid medium be full of, so be moved to when static in the P effect as S1, S2, S3, S4 has also moved identical displacement with S1 is the same, so the compressed equal in length of the spring of each piston back, establishing compressed length is X, can at first obtain the strong P3=KX+1 of hydraulic pressure of third level underpressure chamber (11) now.
Push away successively: the strong P2=P3+KX=KX+1+KX=2KX+1 of hydraulic pressure of underpressure chamber, the second level (4)
The strong P1=P2+KX=2KX+1+KX=3KX+1 of hydraulic pressure of first order underpressure chamber (13)
And obtain: P=4KX+1 KX=［ P-1 ］/4
The result is obtained P3＜P2＜P1 establishment of reducing pressure more once.
Can see now: in the utility model, any one housing all is subjected to two different hydraulic pressure of inside and outside wall and pretends usefulness, therefore what make that each housing produces stress deformation just should be: these two pressure action sums (this and never be addition between them), rather than some between them.According to this point, although in fact the suffered pressure values of inwall of the interior storehouse housing (3) of preceding surface analysis is P, what make in fact that this housing (3) produces stress deformation should be the pressure difference that the absolute value of P deducts the absolute value of P1.Other each housing is also identical therewith.
See from top analysis: the pressure of zone of high pressure is passing through each piston to the transmittance process of underpressure chamber, because the drag effect of each piston back spring makes that the pressure of zone of high pressure is in turn reduced (claiming that this pressure reducing mode is the resistance transmission) in transmittance process.(difference of malleation and resistance pressure absolute value is called overbottom pressure with the overbottom pressure of measuring resistance transmission each time; KX/S is called resistance pressure, and wherein K is the coefficient of stiffiness of spring, and X is a reduction length, and S is that piston transmits the hydraulic pressure cross section).By liquid medium equably reaction on each corresponding housing; thereby the suffered corresponding positive pressure of each housing of balance (the overbottom pressure effect that the resistance consistent with the action direction of zone of high pressure pressure P transmits; also claim positive pressure) a part; if all positive pressure parts that balance; it just in time is the ultralimit part that each housing can bear; therefore we can say that the utility model is exactly the reaction that utilizes the overbottom pressure of resistance transmission, protects housing not to be subjected to the destruction of ultralimit positive pressure.
Embodiment shown in the accompanying drawing 2 compares with embodiment 1, only is piston (6) is oppositely installed, and can reach the purpose of housing (3) inner pressure relief.
The utility model can be used to produce anti-ultra-high pressure apparatus.
Claims (2)
1, a kind of multi-step pressure reducing apparatus is characterized in that
A, it is made up of multilayer shell and the resistance decompressor that is contained on each layer housing,
Between b, the adjacent two layers housing support is arranged, makes all to form the underpressure chamber that connects between the adjacent two layers housing, be full of liquid working media in the underpressure chamber,
C, resistance decompressor are made up of piston, spring and piston slideway, and the piston slideway is opened on each layer housing, and piston passes slideway and closely cooperates to keep sealing with slideway, is with spring on the piston, and all springs all are contained in the same side of its place housing.
2, according to the described multi-step pressure reducing apparatus of claim 1, it is characterized in that the sectional area of each piston is 1 square centimeter, the coefficient of stiffiness of each spring equates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92242165 CN2142909Y (en) | 1992-11-30 | 1992-11-30 | Multi-stage pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92242165 CN2142909Y (en) | 1992-11-30 | 1992-11-30 | Multi-stage pressure relief device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2142909Y true CN2142909Y (en) | 1993-09-29 |
Family
ID=33782040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92242165 Expired - Fee Related CN2142909Y (en) | 1992-11-30 | 1992-11-30 | Multi-stage pressure relief device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2142909Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105197183A (en) * | 2015-09-15 | 2015-12-30 | 江苏科技大学 | Self-balancing pressure-resistant casing device |
| CN105716071A (en) * | 2016-03-30 | 2016-06-29 | 中国长江动力集团有限公司 | Internally-arranged temperature and pressure reducer structure |
| CN109307090A (en) * | 2017-07-26 | 2019-02-05 | 玛瑞斯公开有限公司 | Pressure-regulating device |
-
1992
- 1992-11-30 CN CN 92242165 patent/CN2142909Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105197183A (en) * | 2015-09-15 | 2015-12-30 | 江苏科技大学 | Self-balancing pressure-resistant casing device |
| CN105197183B (en) * | 2015-09-15 | 2017-05-03 | 江苏科技大学 | Self-balancing pressure-resistant casing device |
| CN105716071A (en) * | 2016-03-30 | 2016-06-29 | 中国长江动力集团有限公司 | Internally-arranged temperature and pressure reducer structure |
| CN105716071B (en) * | 2016-03-30 | 2017-11-03 | 中国长江动力集团有限公司 | Built-in temperature-decreased pressure reducer structure |
| CN109307090A (en) * | 2017-07-26 | 2019-02-05 | 玛瑞斯公开有限公司 | Pressure-regulating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |