CN2300101Y - Sealed component type casing hydrostatic tester - Google Patents
Sealed component type casing hydrostatic tester Download PDFInfo
- Publication number
- CN2300101Y CN2300101Y CN 96247352 CN96247352U CN2300101Y CN 2300101 Y CN2300101 Y CN 2300101Y CN 96247352 CN96247352 CN 96247352 CN 96247352 U CN96247352 U CN 96247352U CN 2300101 Y CN2300101 Y CN 2300101Y
- Authority
- CN
- China
- Prior art keywords
- seal assembly
- seal
- box cupling
- sleeve pipe
- annular seal
- 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 sealed component type casing pipe hydrostatic tester which comprises a casing, a sealed component on the outer surface of a coupler, an inner hole sealed component of a pipe body, and an axial thrust blocking ring for the coupler, wherein the sealed component on the outer surface of the coupler is composed of a sealing cavity, an outer sealing assembly and a cover plate. A coupler of a casing pipe extends into an inner cavity of the sealing cavity, and the outer sealing assembly which is pressed by the cover plate is arranged between the peripheral surface of the coupler and a ladder-shaped inner hole of the sealing cavity. The inner hole sealed component of the pipe body is arranged on the tail end of the casing pipe, and is composed of a bearing cap, a core body and an inner sealing assembly. The axial thrust blocking ring for the coupler is composed of blocking rings which are pushed by two liquid cylinders. The inner pressure of the utility model reaches to 70MPa. The utility model is automatically and manually operated in a pressure test process, and has the advantages of cabinet structure, reliable sealing and lower cost.
Description
The utility model relates to the sleeve pipe that oil, rock gas oil gas well are used and carries out the device that hydrostatic pressing is verified, concrete is a kind of seal assembly molded cannula hydrostatic testing machine.
The sleeve pipe hydrostatic testing machine that each oil field of China does not have the above typing of 20MPa for a long time can't carry out commodity inspection to the hydrostatic pressing technical indicator of inlet sleeve.Practice confirms that the sleeve pipe hydrostatic test of import also has leakage person.
The interior pressure performance of sleeve pipe is directly connected to the quality and the life-span of oil gas well.Therefore,, be not economic loss to the checking of sleeve pipe hydrostatic pressing, be again the oil gas well is hidden some dangers for.
In the sleeve pipe hydrostatic testing machine that use in each oil field of China, the 139.7mm of development of Zhongyuan Oilfield (because the seal costliness, lack and can not put into production for 51/2 ") sleeve pipe hydrostatic testing machine, test pressure 56MPa by the life-span now.Its working pressure of sleeve pipe hydrostatic testing machine that the Daqing oil field exploitation is used is 20MPa.
China does not still have this type of device of withstand voltage 70MPa of the typing of self design up till now.
The purpose of this utility model provides a kind of interior pressure 70MPa that uses in the oil field, the testing machine of the sleeve pipe hydrostatic pressing checking that pressure testing process automation and manual operations are compatible, and structure is small and exquisite, sealing is reliable, cost is low.
The purpose of this utility model is achieved in that
A kind of seal assembly molded cannula hydrostatic testing machine comprises bore seal assembly and box cupling axial thrust catch ring in housing, box cupling appearance seal assembly, the body, it is characterized in that:
Box cupling appearance seal assembly is formed by annular seal space, external seal assembly with the cover plate that is threaded, annular seal space is contained in the housing, its front end has pipeline to connect charge pump, its tube wall has pipeline to connect high pressure turbocharger, the box cupling of sleeve pipe stretches into the inner chamber of annular seal space, between box cupling outer round surface and annular seal space ladder endoporus the external seal assembly is housed, this external seal is compressed by cover plate;
Bore seal assembly is installed on the end of sleeve pipe in the body, by the carrying cap, core body and interior seal assembly are formed, the carrying cap is the nut that baffle plate is arranged, load on the external thread of tube ends, core body stretches into the tail end endoporus of sleeve pipe, and interior seal assembly is housed between core outside diameter and casing inner diameter, should be pressed on the bulge loop of core body by interior seal assembly, this bulge loop is pressed on the baffle plate of carrying cap;
Box cupling axial thrust catch ring assembly is made up of the catch ring that two fluid cylinders promote, and fluid cylinder is contained on the housing, and two catch rings respectively are semi-circular shape, radially are contacted with the cylindrical of sleeve pipe.
The purpose of this utility model can also realize by following measure:
The described external seal assembly that is installed in the annular seal space, constitute by backboard 3, lacquer disk(-sc) root 4, front apron 5 in the annular seal space 2 of packing into, and above-mentioned seal is controlled in the annular seal space 2 with cover plate 6, " O " shape O-ring seal is housed in the groove of front and rear baffle, slide block and the contiguous block that is interspersed arranged in lacquer disk(-sc) root 4 both sides;
The described interior seal assembly that is installed in the body endoporus is made of backboard 15, lacquer disk(-sc) root 14, front apron 13, bowl-type packing 12, pressing plate 11 on the interior crystal entertainment ball 10 that is contained in the cover pipe orifice, " O " shape O-ring seal is housed in the groove of front and rear baffle, slide block and the contiguous block that is interspersed arranged in lacquer disk(-sc) root 14 both sides.
Be provided with ball-and-seat and sequence valve on the pipeline between described charge pump and the supercharger, this ball-and-seat is isolated charge pump and supercharger, and this sequence valve is unified in same supercharger with sealing liquid road and boost fluid road.
The feature of this hydrostatic testing machine is: utilize the seal stack assembly in the annular seal space that the box cupling external diameter is sealed, another group seal assembly seals casing inner diameter, thereby constitutes closed system; Adopt two fluid cylinders to promote the thrust that catch ring stops that box cupling carrying pressure testing produces, sleeve pipe is in the stretching situation during pressure testing; Adopt ball-and-seat that low-pressure injection pump and high-voltage booster are isolated; Adopt sequence valve to make sealing and supercharging with using a supercharger; Adopt supercharger to replace the plunger test pump, make highly difficult UHV (ultra-high voltage) release technology become normal pressure release technology; Use single card microcomputer, make pressure testing process automation and manual operations compatible, the structure compact.
The utility model is compared the effect that is had with background technology: the withstand voltage 70MPa of seal assembly, be not subjected to the restriction of casing length, and to sneak into supercharging fast for no gas in the medium.Release is the normal pressure technology, and the high-voltage booster power of motor is little, and structure is small and exquisite, and cost is low.The oil field can be used as does the sampling verification test to the hydrostatic pressing performance of buying sleeve pipe, can impel the attention of factory to bobbin seal, guarantees oil well quality and life-span, retrieves the claim on account of quality to factory.
The utility model can be to 139.7mm, 177.8mm, and large aperture sleeve pipes such as 244.5mm carry out the hydrostatic pressing checking.
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Accompanying drawing number:
1. housing 2. annular seal spaces 3. backboards
4. lacquer disk(-sc) root 5. front aprons 6. cover plates
7. fluid cylinder 8. resistance shelves encircle 9. sleeve pipes
10. core body 11. pressing plates 12. bowl-type packings
13. front baffle board 14. lacquer disk(-sc) roots 15. back plate washers
16. carrying cap 17. sequence valves 18. ball-and-seats
A. from high pressure turbocharger B. from charge pump
Seal assembly molded cannula hydrostatic testing machine of the present utility model comprises bore seal assembly and box cupling axial thrust catch ring in housing, box cupling appearance seal assembly, the body.
Box cupling appearance seal assembly is formed by annular seal space 2, external seal assembly with the cover plate 6 that is threaded, annular seal space 2 is contained in the housing 1, its front end has pipeline to connect charge pump, its tube wall has pipeline to connect high pressure turbocharger, the box cupling of sleeve pipe 9 stretches into the inner chamber of annular seal space 2, between box cupling outer round surface and annular seal space ladder endoporus seal assembly is housed, this external seal assembly is compressed by cover plate 6; Described cover plate can be to be shaped on screw thread on mating surface with being connected of annular seal space, also can be to use screw on flange.
Bore seal assembly is installed on the end of sleeve pipe 9 in the body, by carrying cap 16, core body 10 and interior seal assembly are formed, carrying cap 16 is for there being the nut of baffle plate, load on the external thread of tube ends, core body 10 stretches into the tail end endoporus of sleeve pipe 9, between core body 10 external diameters and sleeve pipe 9 internal diameters interior seal assembly is housed, should be pressed on the bulge loop of core body 10 by interior seal assembly, this bulge loop is pressed on the baffle plate of carrying cap 16;
Box cupling axial thrust catch ring assembly is made up of the catch ring 8 that two fluid cylinders 7 promote, and fluid cylinder 7 is contained on the housing 1, and two catch rings 8 respectively are semi-circular shape, radially are contacted with the cylindrical of sleeve pipe 9.
In the embodiment shown in fig. 1, the described external seal assembly that is installed in the annular seal space, constitute by backboard 3, lacquer disk(-sc) root 4, front apron 5 in the annular seal space 2 of packing into, and above-mentioned seal is controlled in the annular seal space 2 with cover plate 6, " O " shape O-ring seal is housed in the groove of front and rear baffle, slide block and the contiguous block that is interspersed arranged in lacquer disk(-sc) root 4 both sides;
The described interior seal assembly of body endoporus that is installed in is by backboard 15, lacquer disk(-sc) root 14, front apron 13 on the interior crystal entertainment ball 10 that is contained in the cover pipe orifice, bowl-type packing 12 constitutes, " O " shape O-ring seal is housed in the groove of front and rear baffle, slide block and the contiguous block that is interspersed arranged in lacquer disk(-sc) root 14 both sides.
During enforcement, be provided with ball-and-seat 18 and sequence valve 17 on the pipeline between described charge pump and the supercharger, this ball-and-seat 18 is isolated charge pump and supercharger, and this sequence valve 17 is unified in same supercharger with sealing liquid road and boost fluid road.
Design feature of the present utility model and principle of work:
Casing coupling seals from outside surface, constitute by the seal assembly and the plate washer 6 that are contained in the annular seal space 2, the sealing of body endoporus is made of carrying cap 16 and interior seal assembly, thereby formed the obturator of internal pressure test, medium is to the axial thrust of casing coupling during pressure testing, and the catch ring 8 that is promoted by two fluid cylinders 7 is seated at housing 1 and bears, and makes low-pressure injection pump and high-voltage booster isolation with ball-and-seat 18, sequence valve 17 will seal and the supercharging stream oriented device, and will be unified to same high-voltage booster.
After tested sleeve pipe enters the pressure testing station, sleeve pipe 9 through roller shaft to entering pressure testing annular seal space 2, when head-to-foot of box cupling, two fluid cylinders 7 promote catch rings and live box cupling for 8 grades, start high-voltage booster then, make seal assembly seal box cupling external diameter and body endoporus respectively, when pressure reached setting, sequence valve 17 startups were poured into pressure testing liquid and are pressurized to ratings, release after voltage stabilizing 2-5 minute in sleeve pipe, withdrawing from 8, one pressure testing programs of box cupling catch ring then finishes.
Annular seal space 2 is screwed on housing 1, and backboard 3, lacquer disk(-sc) root 4, front apron 5 usefulness thread plates 6 are fixed in the annular seal space 2." O " shape O-ring seal is housed respectively in front and rear baffle external diameter groove, slide block and the contiguous block that is interspersed also is housed in the both sides of lacquer disk(-sc) root 4.More than each part constituted sealing to the box cupling outside surface.
Carrying cap 16 tightens on the external thread of sleeve pipe, and seal assembly forms the sealing of cover pipe orifice in stoping.Backboard 15, lacquer disk(-sc) plate 14, front apron 13, bowl-type packing 12 and pressing plate 11 are sleeved on the interior crystal entertainment ball 10, and tighten up with nut." O " shape O-ring seal is housed in the internal diameter groove of front and rear baffle, slide block and the contiguous block that is interspersed arranged in the both sides of lacquer disk(-sc) root 14, constituted interior seal assembly.Catch ring 8 is connected with fluid cylinder 7 usefulness pins, and 7 of fluid cylinders are in the base sheath of housing 1 side opening.
Supercharger output sebific duct and threeway are joined, the inlet of threeway one termination annular seal space 2 sides, the import of another termination is adjustable sequence valve 17.The outlet of sequence valve 17 converges through threeway and ball-and-seat, and the low-pressure injection pump connects the import of ball-and-seat 18, and its outlet connects the import of annular seal space 2 ends after threeway and adjustable sequence valve 17 converge.Thereby constitute the manifold device of low-pressure injection, sealing, supercharging.
Claims (3)
1. a seal assembly molded cannula hydrostatic testing machine comprises bore seal assembly and box cupling axial thrust catch ring in housing, box cupling appearance seal assembly, the body, it is characterized in that:
Box cupling appearance seal assembly is formed by annular seal space, external seal assembly with the cover plate that is threaded, annular seal space is contained in the housing, its front end has pipeline to connect charge pump, its tube wall has pipeline to connect high pressure turbocharger, the box cupling of sleeve pipe stretches into the inner chamber of annular seal space, between box cupling outer round surface and annular seal space ladder endoporus the external seal assembly is housed, this external seal is compressed by cover plate;
Bore seal assembly is installed on the end of sleeve pipe in the body, by the carrying cap, core body and interior seal assembly are formed, the carrying cap is the nut that baffle plate is arranged, load on the external thread of tube ends, core body stretches into the tail end endoporus of sleeve pipe, and interior seal assembly is housed between core outside diameter and casing inner diameter, should be pressed on the bulge loop of core body by interior seal assembly, this bulge loop is pressed on the baffle plate of carrying cap;
Box cupling axial thrust catch ring assembly is made up of the catch ring that two fluid cylinders promote, and fluid cylinder is contained on the housing, and two catch rings respectively are semi-circular shape, radially are contacted with the cylindrical of sleeve pipe.
2. seal assembly molded cannula hydrostatic testing machine as claimed in claim 1, it is characterized in that: the described external seal assembly that is installed in the annular seal space, constitute by the backboard (3) in the annular seal space of packing into (2), lacquer disk(-sc) root (4), front apron (5), and above-mentioned seal is controlled in the annular seal space (2) with cover plate (6), " O " shape O-ring seal is housed in the groove of front and rear baffle, slide block and the contiguous block that is interspersed is arranged in lacquer disk(-sc) root (4) both sides;
The described interior seal assembly that is installed in the body endoporus is made of the backboard (15) on the interior crystal entertainment ball (10) that is contained in the cover pipe orifice, lacquer disk(-sc) root (14), front apron (13), bowl-type packing (12), pressing plate (11), " O " shape O-ring seal is housed in the groove of front and rear baffle, slide block and the contiguous block that is interspersed is arranged in lacquer disk(-sc) root (14) both sides.
3. seal assembly molded cannula hydrostatic testing machine according to claim 1, it is characterized in that: on the pipeline between described charge pump and the supercharger, be provided with ball-and-seat and sequence valve, this ball-and-seat is isolated charge pump and supercharger, and this sequence valve is unified in same supercharger with sealing liquid road and boost fluid road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96247352 CN2300101Y (en) | 1996-12-03 | 1996-12-03 | Sealed component type casing hydrostatic tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96247352 CN2300101Y (en) | 1996-12-03 | 1996-12-03 | Sealed component type casing hydrostatic tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2300101Y true CN2300101Y (en) | 1998-12-09 |
Family
ID=33919558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96247352 Expired - Fee Related CN2300101Y (en) | 1996-12-03 | 1996-12-03 | Sealed component type casing hydrostatic tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2300101Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915647A (en) * | 2010-08-25 | 2010-12-15 | 天津双街钢管有限公司 | End face seal pressure test head device of hydraulic pressure testing machine |
| CN102607957A (en) * | 2012-03-16 | 2012-07-25 | 江汉石油钻头股份有限公司 | Hydrostatic pressure testing device for underwater wellhead |
| CN106198233A (en) * | 2016-08-23 | 2016-12-07 | 中国重型机械研究院股份公司 | A kind of box cupling device being applicable to the multitube water pressure test |
| CN114017502A (en) * | 2021-11-18 | 2022-02-08 | 上海城建预制构件有限公司 | Sealing structure for hydrostatic test ring and design method thereof |
-
1996
- 1996-12-03 CN CN 96247352 patent/CN2300101Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915647A (en) * | 2010-08-25 | 2010-12-15 | 天津双街钢管有限公司 | End face seal pressure test head device of hydraulic pressure testing machine |
| CN101915647B (en) * | 2010-08-25 | 2011-09-14 | 天津双街钢管有限公司 | End face seal pressure test head device of hydraulic pressure testing machine |
| CN102607957A (en) * | 2012-03-16 | 2012-07-25 | 江汉石油钻头股份有限公司 | Hydrostatic pressure testing device for underwater wellhead |
| CN102607957B (en) * | 2012-03-16 | 2013-11-27 | 江汉石油钻头股份有限公司 | Hydrostatic pressure testing device for underwater wellhead |
| CN106198233A (en) * | 2016-08-23 | 2016-12-07 | 中国重型机械研究院股份公司 | A kind of box cupling device being applicable to the multitube water pressure test |
| CN106198233B (en) * | 2016-08-23 | 2023-11-07 | 中国重型机械研究院股份公司 | Coupling device suitable for multitube hydrostatic test |
| CN114017502A (en) * | 2021-11-18 | 2022-02-08 | 上海城建预制构件有限公司 | Sealing structure for hydrostatic test ring and design method thereof |
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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 |