CN208041432U - A kind of Underwater Pressure compensation device - Google Patents
A kind of Underwater Pressure compensation device Download PDFInfo
- Publication number
- CN208041432U CN208041432U CN201820500643.6U CN201820500643U CN208041432U CN 208041432 U CN208041432 U CN 208041432U CN 201820500643 U CN201820500643 U CN 201820500643U CN 208041432 U CN208041432 U CN 208041432U
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- CN
- China
- Prior art keywords
- bellows
- shell
- pressure compensation
- compensation device
- underwater pressure
- 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 provides a kind of Underwater Pressure compensation device, which solve existing Underwater Pressure compensation device is complicated and the poor technical problem of stability, it is equipped with shell, shell is cylindrical housings, housing tip is equipped with the first bellows, and the first ripple tube top end is connected with upper end cover；Enclosure interior is equipped with the second bellows, the outer diameter of second bellows is less than the internal diameter of the first bellows, second bellows top is connected to upper end cover, the region being connect with the second bellows in upper end cover is equipped with through-hole, second bellows bottom end is equipped with seal cover board, second bellows bottom end keeps free state inside housings, space between second bellows and shell forms compensated chamber, shell bottom end is equipped with connecting flange, it is equipped with into oilhole on the right side of shell, enter and be equipped at oilhole into fuel tap, the utility model can be widely used for the pressure compensation of deep sea equipment.
Description
Technical field
The utility model is related to pressure compensator technical fields, more particularly, to a kind of Underwater Pressure compensation device.
Background technology
Due to the increase of energy requirement, offshore oil and combustion gas exploitation gradually proceed to more deepwater field, with Underwater resources
The paces of utilization are further speeded up, and the type and quantity of underwater kit are also more and more, for underwater kit, work as water
Deep often to increase by 100 meters, the external pressure suffered by underwater kit will increase about 1MPa, will have up to tens of million under water at thousands of meters
The pressure of pa, for ensure underwater kit, especially underwater kit in closed cavity, such as hydraulic control valve body, various strong and weak electricities
Component, various sensors etc. are not damaged by so high external pressure, and underwater kit must use pressure compensation measure, tradition
Pressure compensator generally use single bellows realize the compensating effect of pressure compensator, pass through and increase bellows
Effective length increases its compensation performance, and this mode not only largely increases the volume of pressure compensator, have
When can also there is a phenomenon where unstable failures due to Bellows Length is long.
Invention content
The utility model aiming at existing Underwater Pressure compensation device is complicated and the poor technical problem of stability,
A kind of simple in structure and preferable Underwater Pressure compensation device of stability is provided.
For this purpose, the utility model is equipped with shell, shell is cylindrical housings, and housing tip is equipped with the first bellows, first
Bellows top is connected with upper end cover；Enclosure interior is equipped with the second bellows, and the outer diameter of the second bellows is less than the first bellows
Internal diameter, the second bellows top is connected to upper end cover, and the region being connect with the second bellows in upper end cover is equipped with through-hole, second
Bellows bottom end is equipped with seal cover board, and the second bellows bottom end keeps free state, the second bellows and shell inside housings
Between space form compensated chamber, shell bottom end is equipped with connecting flange, is equipped with into oilhole on the right side of shell, enters and be equipped with into oil at oilhole
Valve.
Preferably, circular hole is equipped at the center of shell lower face.
Preferably, in the second bellows lower section ripple outer diameter be more than top ripple outer diameter.
Preferably, the first bellows is fixedly connected with the casing by flange.
Preferably, static seal is realized by the way of O-ring seal between the first bellows and upper end cover.
Preferably, through-hole is several densely covered micropores.
The utility model is simple in structure, and the compensating effect of pressure compensator is realized by the axial displacement of bellows,
Using the design of bi-bellow, the compensation range of pressure compensator had both been increased, had been in turn avoided because Bellows Length is excessive
And the unstable failure phenomenon occurred, the first bellows is set to the outside of shell, brings it about the axial direction generated when compensating effect
Displacement deformation is not take up the space of enclosure interior, effectively reduces the volume of pressure compensator；By in shell lower face
Circular hole is set, blocks circular hole when the second bellows reaches the lower face of shell, realizes the overload protection to the second bellows；
By setting through-hole in upper end cover to densely covered micropore, it is ensured that seawater smoothly enters the second bellows interior, avoids
Unexpected impact to bellows, and can effectively prevent extra large impurities in water and enter the second bellows interior, to its axial direction
It is flexible to cause to hinder.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the second bellows；
Fig. 3 is the structural schematic diagram of upper end cover.
Symbol description in figure：
1. shell；2. the first bellows；3. upper end cover；4. the second bellows；5. micropore；6. seal cover board；7. compensated chamber；
8. connecting flange；9. entering oilhole；10. entering fuel tap；11. circular hole.
Specific implementation mode
Specific embodiment of the present utility model is described in detail with reference to the accompanying drawings.
As shown in Figure 1, the utility model is equipped with shell 1, shell 1 is cylindrical housings, and 1 top of shell is equipped with the first ripple
Pipe 2, the first bellows 2 are fixedly connected by flange with shell 1, and 2 top of the first bellows is connected with upper end cover 3, the first ripple
Static seal is realized by the way of O-ring seal between pipe 2 and upper end cover 3.
Shell 1 is internally provided with the second bellows 4, and 4 top of the second bellows is connected to upper end cover 3,4 bottom end of the second bellows
Equipped with seal cover board 6, the bottom end of the second bellows 4 keeps free state inside shell 1, including alloing the second bellows 4
Portion's pressure effect is lower to generate telescopic displacement, and the outer diameter of the second bellows 4 is less than the internal diameter of the first bellows 2, makes the first bellows 2
Positioned at the outside of the second bellows 4, reduce the volume of pressure compensator, and when the first bellows 2 generation compensating effect, production
Raw axial displacement deformation is not take up the inner space of pressure compensator.
Preferably, as shown in Fig. 2, the outer diameter of lower section ripple is more than the outer diameter of top ripple in the second bellows 4, through experiment
Emulation it is found that this bellows design method bellows respective loads effect under material maximum equivalent it is smaller,
The load that bellows can bear is maximum.
Space between second bellows 4 and shell 1 forms compensated chamber 7, and for holding compensation fluid, 1 right side of shell is set
Have into oilhole 9, enters and be equipped at oilhole 9 into fuel tap 10, from entering from oilhole 9 as compensation fluid is added in compensated chamber 7；1 bottom end of shell
Equipped with connecting flange 8, compacting compensation device is connected to by connecting flange 8 needs equipment to be protected.
As shown in figure 3, the micropore 5 that the area distribution being connect with the second bellows 4 in upper end cover 3 has several densely covered, it can
Ensure that seawater smoothly enters the inside of the second bellows 4, avoids the unexpected impact to the second bellows 4, and can have
Effect prevents extra large impurities in water from entering the inside of the second bellows 4, causes to hinder to its axial stretching.
Circular hole 11 is equipped at the lower face center of shell 1, as the load acted on the second bellows 4 constantly increases,
The axial stretching displacement of second bellows 4 continues to increase, when 4 lower face of the second bellows reaches the circular hole 11 of 1 lower face of shell
When circular hole 11 is blocked, pressure compensated oil passage is separated at this time, and the second bellows 4 is because can not further occur axial direction
Displacement avoids the danger that yield failure occurs, to play the overload protection function to the second bellows 4.
In use, the box house that the element that pressure compensation is protected will be needed to be put into a sealing, pressure compensator are logical
Connecting flange 8 to be crossed to connect with babinet, babinet fills identical compensation fluid with 7 inside of compensated chamber, when being operated in abyssal environment,
Sea water static pressure power is acted on by micropore in upper end cover 5 on the second bellows 4, the second bellows 4 generate under pressure to
Under axial displacement so that its volume is become larger, and then the compensation fluid inside compensated chamber 7 is pressed into babinet, is compensated for because of sea
The variation of box house medium volume caused by hydrostatic pressure changes, to reach the mesh that seabed babinet external and internal pressure tends to balance
's.
Only as described above, only specific embodiment of the utility model, when the utility model cannot be limited with this
The range of implementation, therefore the displacement of its equivalent assemblies, or according to equivalent variations made by the utility model patent protection domain and change,
It all should still belong to the scope that the utility model claims book is covered.
Claims (6)
1. a kind of Underwater Pressure compensation device, it is equipped with shell, the shell is cylindrical housings, and the housing tip is equipped with the
One bellows, the first ripple tube top end are connected with upper end cover；It is characterized in that, the enclosure interior is equipped with the second ripple
Pipe, the outer diameter of second bellows are less than the internal diameter of first bellows, and second bellows top is connected to described
Upper end cover, the region being connect with second bellows in the upper end cover are equipped with through-hole, and second bellows bottom end is equipped with
Seal cover board, second bellows bottom end keep free state, second bellows and the shell in the enclosure interior
Space between body forms compensated chamber, and the shell bottom end is equipped with connecting flange, is equipped with into oilhole on the right side of the shell, it is described enter
It is equipped with into fuel tap at oilhole.
2. Underwater Pressure compensation device according to claim 1, it is characterised in that the shell lower face is equipped at center
Circular hole.
3. Underwater Pressure compensation device according to claim 1, it is characterised in that lower section ripple in second bellows
Outer diameter be more than top ripple outer diameter.
4. Underwater Pressure compensation device according to claim 1, it is characterised in that first bellows by flange with
The shell is fixedly connected.
5. Underwater Pressure compensation device according to claim 1, it is characterised in that first bellows and the upper end
Static seal is realized between lid by the way of O-ring seal.
6. Underwater Pressure compensation device according to claim 1, it is characterised in that the through-hole is that several are densely covered micro-
Hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820500643.6U CN208041432U (en) | 2018-04-10 | 2018-04-10 | A kind of Underwater Pressure compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820500643.6U CN208041432U (en) | 2018-04-10 | 2018-04-10 | A kind of Underwater Pressure compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208041432U true CN208041432U (en) | 2018-11-02 |
Family
ID=63944288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820500643.6U Expired - Fee Related CN208041432U (en) | 2018-04-10 | 2018-04-10 | A kind of Underwater Pressure compensation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208041432U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458253A (en) * | 2021-02-20 | 2022-05-10 | 中海油能源发展股份有限公司 | Double-corrugated-pipe ultrahigh-pressure gas lift valve with damping and application method thereof |
-
2018
- 2018-04-10 CN CN201820500643.6U patent/CN208041432U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458253A (en) * | 2021-02-20 | 2022-05-10 | 中海油能源发展股份有限公司 | Double-corrugated-pipe ultrahigh-pressure gas lift valve with damping and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181102 |