CN104712612A - Long stroke hydraulic pressure test device - Google Patents
Long stroke hydraulic pressure test device Download PDFInfo
- Publication number
- CN104712612A CN104712612A CN201310684156.1A CN201310684156A CN104712612A CN 104712612 A CN104712612 A CN 104712612A CN 201310684156 A CN201310684156 A CN 201310684156A CN 104712612 A CN104712612 A CN 104712612A
- Authority
- CN
- China
- Prior art keywords
- piston
- testing device
- fluid power
- pressure testing
- long travel
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A long stroke hydraulic pressure test device comprises a piston cylinder, a piston and a centering device, and the piston and the centering device are mounted in the piston cylinder. The piston cylinder comprises an upper connector, a coupling, an upper pressurization connector, a casing pipe, a lower pressurization connector, a lower connector, a V-shaped sealing assembly and a pressing cap, wherein the coupling, the upper pressurization connector, the casing pipe, the lower pressurization connector, the lower connector, the V-shaped sealing assembly and the pressing cap are sequentially connected outside the upper connector. The piston comprises a locating sleeve mounted in the piston cylinder, packing leather, a piston head, a V-shaped sealing assembly, packing leather, an adapter sleeve, a limiting ring and a pressurization shaft, wherein the packing leather, the piston head, the V-shaped sealing assembly, the packing leather, the adapter sleeve, the limiting ring and the pressurization shaft are connected in sequence. The centering device comprises a center shaft connected to the interior of the upper connector and a plug mounted on the center shaft. The long stroke hydraulic pressure test device has the advantages that the center shaft and the locating sleeve balance the internal pressure and the external pressure of an inner pipe of the center shaft in the pressurizing process, it is guaranteed that the center pipe is safe and free of deformation, under the condition that precision cannot be guaranteed in an inner hole with a super long stroke, the packing leather can guarantee sealing of the piston, and the service life of the packing leather and the service life of the sealing assemblies are long, and the long stroke hydraulic pressure test device is widely applied to long-stroke hydraulic test devices in the petroleum industry.
Description
Technical field
The present invention is specifically related to the Long travel hydraulic test equipment of petroleum industry, particularly a kind of Long travel fluid power pressure testing device.
Background technique
Existing Long travel hydraulic test equipment, its structure is made up of critical pieces such as upper end cap, lower end cap, piston bore, piston, piston rods.The sealing of the moving element such as piston bore and piston uses seal ring to seal substantially.The Long travel hydraulic test equipment of this structure is that the fluid power pressure testing of petroleum industry has played effect, but it also exists following shortcoming or deficiency simultaneously: (1) is difficult to the inner hole precision ensureing long cylinder barrel on manufacturing.(2) cylinder barrel after machining also exists deviation from circular from, and this makes cylinder barrel wear extent after using after a while strengthen, and piston exacerbates the wearing and tearing of seal arrangement in cylinder barrel, occurs poorly sealed, goes here and there oily phenomenon.(3) action direction of load force is difficult to the axes coincide with oil hydraulic cylinder outside.Its radial component, makes O-ring seal unbalance stress, causing cushion rubber one-sided by squeezing, finally causing seal failure.
Summary of the invention
The object of this invention is to provide a kind of Long travel fluid power pressure testing device, adopt the composite structure of piston cylinder, leather cup type piston, connecting sleeve, setting sleeve, central shaft and centralizer, connecting sleeve and setting sleeve prevent piston and oil hydraulic cylinder from clashing into, central shaft centralizer is when the endoporus of ultralong-stroke cannot ensure precision, leather cup can ensure the sealing of piston, effectively overcomes or avoids the shortcoming that exists in above-mentioned prior art or deficiency.
Long travel fluid power pressure testing device of the present invention, comprise piston cylinder, piston and centralizer, piston and centralizer are installed in piston cylinder.Described piston cylinder comprises upper connection and the box cupling connected in turn outward thereof, upper pressurizing adaptor, sleeve pipe, lower pressurizing adaptor, lower contact, V-seal assembly, pressure cap; Described piston comprises the setting sleeve be installed in piston cylinder and the leather cup installing connection in turn, piston head, V-seal assembly, leather cup, connecting sleeve, limited ring and pressuring shaft; Described centralizer comprises and the central shaft be connected in upper connection and and the plug of upper installation.
Wherein, described connecting sleeve top is connected with piston head, and bottom is connected with pressuring shaft with limited ring in turn.Pressuring shaft above described pressure cap and be provided with V-seal assembly between lower contact.Described leather cup is two, is installed on the two ends of piston head each other in the other direction.Described setting sleeve is installed on central shaft top, is flexibly connected coordinates with central shaft.Described box cupling is provided with pressurizing adaptor and lower pressurizing adaptor.Described upper connection, central shaft and plug form liquid storage counter balance pocket.Described leather cup passes through steel part screwed connection on piston head.The position that described setting sleeve is relative with upper pressurizing adaptor with central shaft is provided with flowing hole.Described V-seal assembly is V-type steel part black box or V-type rubber seal element.
The present invention compared with prior art tool has the following advantages:
1, connecting sleeve and setting sleeve have the function preventing piston and oil hydraulic cylinder from clashing into upper connection or lower contact.
2, central shaft and setting sleeve are drilled with aperture, with pipe external and internal pressure in pressure process in centre of equilibrium axle, guarantee center tube safety, indeformable.
3, when the endoporus of ultralong-stroke cannot ensure precision, leather cup can ensure the sealing of piston.
4, in ultralong-stroke piston cylinder, leather cup longer service life.
5, the rubber seal of V-type many groups is used when ensureing sealing, working life can be increased.
6, central shaft righting piston apparatus, the action direction of outer load force and the axes coincide of oil hydraulic cylinder can not cause the one-sided situation by squeezing seal failure.
Accompanying drawing explanation
Fig. 1 is a kind of example structure schematic diagram of the present invention.
Embodiment
Consult Fig. 1, a kind of Long travel fluid power pressure testing device, comprise piston cylinder, piston and centralizer, piston and centralizer are installed in piston cylinder.Piston cylinder comprises upper connection 1 and the box cupling 2 connected in turn outward thereof, upper pressurizing adaptor 3, sleeve pipe 12, lower pressurizing adaptor 13, lower contact 14, V-seal assembly 8, pressure cap 15; Piston comprises the setting sleeve 5 be installed in piston cylinder and the leather cup 6 installing connection in turn, piston head 7, V-seal assembly 8, leather cup 6, connecting sleeve 9, limited ring 10 and pressuring shaft 11; Centralizer comprises and the central shaft 4 be connected in upper connection 1 and and the plug 16 of upper installation.
Connecting sleeve 9 top is connected with piston head 7, and bottom is connected with pressuring shaft 11 with limited ring 10 in turn.Between pressuring shaft 11 above pressure cap 15 and lower contact 14, V-seal assembly 8 is installed.Leather cup 6 is two, is installed on the two ends of piston head 7 each other in the other direction.Setting sleeve 5 is installed on central shaft 4 top, is flexibly connected coordinates with central shaft 4.Box cupling 2 is provided with pressurizing adaptor 3 and lower pressurizing adaptor 13.Upper connection 1, central shaft 4 and plug 16 form liquid storage counter balance pocket.Leather cup 6 passes through steel part screwed connection on piston head 7.The position that setting sleeve 5 is relative with upper pressurizing adaptor 3 with central shaft 4 is provided with flowing hole.V-seal assembly 8 is V-type steel part black box or V-type rubber seal element.
During operation, Long travel fluid power pressure testing device of the present invention is connected with the loading oil hydraulic pump of band biswitch.Load oil hydraulic pump to be communicated with upper pressurizing adaptor 3, when loading oil hydraulic pump pressurization, leather cup 6 is by compression swelling, leather cup 6 and sleeve pipe 12 closely cooperate, and leather cup 6 promotes piston head 7, and piston head 7 promotes connecting sleeve 9, connecting sleeve 9 promotes pressuring shaft 11 and outwards moves, and box cupling 2 connects oil return apparatus; Otherwise when pressuring shaft 11 reclaims, load oil hydraulic pump and be communicated with lower pressurizing adaptor 13, leather cup 6 is by compression swelling, and piston head 7 is moved back, and upper pressurizing adaptor 3 connects oil return apparatus.
Claims (10)
1. a Long travel fluid power pressure testing device, comprise piston cylinder, piston and centralizer, piston and centralizer are installed in piston cylinder, it is characterized in that described piston cylinder comprises upper connection and the box cupling connected in turn outward thereof, upper pressurizing adaptor, sleeve pipe, lower pressurizing adaptor, lower contact, V-seal assembly, pressure cap; Described piston comprises the setting sleeve be installed in piston cylinder and the leather cup installing connection in turn, piston head, V-seal assembly, leather cup, connecting sleeve, limited ring and pressuring shaft; Described centralizer comprises and the central shaft be connected in upper connection and and the plug of upper installation.
2. Long travel fluid power pressure testing device according to claim 1, it is characterized in that described connecting sleeve top is connected with piston head, bottom is connected with pressuring shaft with limited ring in turn.
3. Long travel fluid power pressure testing device according to claim 1, is characterized in that being provided with V-seal assembly between pressuring shaft above described pressure cap and lower contact.
4. Long travel fluid power pressure testing device according to claim 1, is characterized in that described leather cup is two, is installed on the two ends of piston head each other in the other direction.
5. Long travel fluid power pressure testing device according to claim 1, is characterized in that described setting sleeve is installed on central shaft top, is flexibly connected coordinates with central shaft.
6. Long travel fluid power pressure testing device according to claim 1, is characterized in that described box cupling being provided with pressurizing adaptor and lower pressurizing adaptor.
7. Long travel fluid power pressure testing device according to claim 1, is characterized in that described upper connection 1, central shaft and plug form liquid storage counter balance pocket.
8. Long travel fluid power pressure testing device according to claim 1, is characterized in that described leather cup by steel part screwed connection on piston head.
9. Long travel fluid power pressure testing device according to claim 1, is characterized in that the position that described setting sleeve is relative with upper pressurizing adaptor with central shaft is provided with flowing hole.
10. Long travel fluid power pressure testing device according to claim 1, is characterized in that described V-seal assembly is V-type steel part black box or V-type rubber seal element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310684156.1A CN104712612A (en) | 2013-12-16 | 2013-12-16 | Long stroke hydraulic pressure test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310684156.1A CN104712612A (en) | 2013-12-16 | 2013-12-16 | Long stroke hydraulic pressure test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104712612A true CN104712612A (en) | 2015-06-17 |
Family
ID=53412239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310684156.1A Pending CN104712612A (en) | 2013-12-16 | 2013-12-16 | Long stroke hydraulic pressure test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104712612A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360361A (en) * | 2020-12-03 | 2021-02-12 | 中国石油集团渤海钻探工程有限公司 | Self-locking type non-coupling casing hoop installation tool |
-
2013
- 2013-12-16 CN CN201310684156.1A patent/CN104712612A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360361A (en) * | 2020-12-03 | 2021-02-12 | 中国石油集团渤海钻探工程有限公司 | Self-locking type non-coupling casing hoop installation tool |
| CN112360361B (en) * | 2020-12-03 | 2021-11-02 | 中国石油集团渤海钻探工程有限公司 | Self-locking type non-coupling casing hoop installation tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102564702B (en) | Device and system for testing packer in formation tester | |
| CN202928792U (en) | Multifunctional packer testing apparatus | |
| CN202522364U (en) | Pressure gage protector | |
| CN108915631B (en) | Combined double-rubber-cylinder open hole packer | |
| CN105604521B (en) | A kind of multi-functional compression type packer tubling unit experiment device | |
| CN204371211U (en) | A kind of packer sealing structure based on the sealing of metal-rubber cylinder | |
| CN209858333U (en) | Device is tested to anti crowded compaction outward of sleeve pipe | |
| CN202903426U (en) | Test equipment for rubber drum of packer | |
| CN101701588A (en) | Method for assembling impeller and high speed rotating shaft, and special tool thereof | |
| CN104712612A (en) | Long stroke hydraulic pressure test device | |
| CN102879156A (en) | Sealing pressure test method for O-shaped seal rings and sealing device for O-shaped seal rings | |
| CN203655267U (en) | Long-stroke hydraulic pressure testing device | |
| CN202092835U (en) | Pressure testing device | |
| CN108060905B (en) | High-temperature high-pressure packer | |
| CN203594402U (en) | Oil tube plugging device | |
| RU2495224C1 (en) | Geophysical lubricator with test device | |
| CN102331329A (en) | Pressure testing system and pressure testing method | |
| CN213579927U (en) | Downhole safety valve testing device | |
| CN204286770U (en) | The proving installation of a kind of graphite seal friction force and sealing load | |
| CN203769716U (en) | Internal balance type well cementing head | |
| CN203730456U (en) | Mini-type high-pressure oil hydraulic cylinder | |
| CN216043626U (en) | Durable packer with long service life for oil exploitation | |
| CN106482934B (en) | Reverse circulation downhole tool opening pressure testing device and method | |
| CN219712309U (en) | End sealing device for hydraulic test of steel pipe | |
| CN203035149U (en) | High-pressure elbow sealer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150617 |
|
| WD01 | Invention patent application deemed withdrawn after publication |