CN101984337A - Pipeline hydraulic test device - Google Patents
Pipeline hydraulic test device Download PDFInfo
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- CN101984337A CN101984337A CN 201010520687 CN201010520687A CN101984337A CN 101984337 A CN101984337 A CN 101984337A CN 201010520687 CN201010520687 CN 201010520687 CN 201010520687 A CN201010520687 A CN 201010520687A CN 101984337 A CN101984337 A CN 101984337A
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- pipeline
- conduit coupling
- hydraulic
- lathe bed
- testing apparatus
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Abstract
The invention provides a pipeline hydraulic test device, which consists of beds, hydraulic thrust power units, pipeline connecting pieces, composite sealing elements and supports. Two hydraulic power units are removably fixed to beds by universal adjusting bases based on the lengths of the pipelines to be tested. Seal flange is used as the conduit coupling. One end of the conduit coupling is connected to the thrust bar of hydraulic thrust power units. Composite sealing elements are arranged at the connection place of the sealing surface of the other end of the conduit coupling and tube walls. The composite sealing elements are compounded of high toughness rubber bases and flexible metal anti-shear layers. Being connected with the pipelines to be tested, flexible metal anti-shear layers can resist the edge cutting of pipelines against the sealing elements, and high toughness rubber bases make up the deviation between sections generated from tack cutting of pipelines and axial verticality of pipelines. The axial sealing is realized without considering on the high requirements of inner and outer diameter surface smoothness or other parameters of the pipelines to be tested by adopting other sealing types. The device provided by the invention acts more effectively with less input.
Description
Technical field
The present invention relates to big-and-middle diameter welded type pipeline, pipe fitting finished product are carried out high pressure hydraulic pressure detection technique field, particularly a kind of pipeline hydraulic testing apparatus.
Background technology
In the welded type pipeline manufacture process of specialty, according to relevant technical requirement pipeline being done the hydraulic testing, to check its mechanical property and pipeline quality of connection be a critical step.At present, the seal form of welded type (middle longitudinal joint, spiral seam) pipeline (steel oil, the natural gas line) hydraulic testing generally mostly is at the two ends of unit pipes segment length direction does radial seal, promptly adopt welded tube internal diameter or external diameter fitted seal circle, be subjected to compression swelling to realize the mode of sealed tube wall purpose by O-ring seal.Both at home and abroad the hydraulic pressure water test unit that produces in the welded type pipeline automatic assembly line of the Germany that uses at present of large-size welding type pipeline manufacturer (in, the United States, Russia) or Japan is exactly this form.
Radial seal requires very high to pipeline technology, not only require the weld seam waist height of tube wall surface polishing and inside and outside wall must be equal to the mother metal wall thickness, with diametric plane and seal anchor ring inside and outside the assurance pipeline good identical state is arranged.But need to drop into a large amount of costs often pipeline being carried out corresponding process modification, the corresponding pressure testing device of radial seal mode that adopts of buying also needs very big fund input, and the apparatus for production line cost is very high.
Summary of the invention
The objective of the invention is: a kind of device that is used for the welded type pipeline hydro-test of big-and-middle-sized diameter is provided, and device is taked the axial seal mode, and is simple in structure, and the existing apex combustion seal of cost reduces greatly.
For achieving the above object, the technical scheme that the present invention takes comprises the testing machine lathe bed for the pipeline hydraulic testing apparatus, and lathe bed is provided with hydraulic thrust power unit, conduit coupling, composite seal, support, wherein:
Hydraulic thrust power unit comprises two hydraulic thrust engines, and its base plate is individually fixed on two universal adjustable pedestals, and distance rod is relative;
Dismountable being installed on the lathe bed of described universal adjustable pedestal, it comprises top board, vertically modulating mechanism, the horizontal adjustment structure of U-shaped, the base plate of hydraulic thrust power unit is positioned at the groove of U-shaped top board; Vertically modulating mechanism is for vertically to be installed on four angles of hydraulic thrust power unit base plate, and with the base plate of hydraulic thrust power unit between screw rod for being threaded, the screw rod bottom is positioned on the top board of universal adjustable pedestal all the time, the height that screw rod rotation may command base plate rises or descends; Level(l)ing mechanism is four screw rods that level is installed on symmetry on the universal adjustable pedestal U-shaped top board groove two side, the screw rod bottom is against on two symmetrical sides of hydraulic thrust power unit base plate, adjusts screw rod simultaneously and can adjust hydraulic thrust power unit position in the horizontal direction.
The distance rod of two hydraulic thrust engines is the connecting tube web member respectively, and one of them conduit coupling is provided with the exhaust passage, and another conduit coupling is provided with intake tunnel; The end face of the other end of conduit coupling and distance rod link is provided with annular groove, and composite seal places in the groove;
Described composite seal comprises shearing resistance layer, elastic compensating layer, and when placing in the groove of conduit coupling, the elastic compensating layer is positioned at bottom portion of groove, the end face of shearing resistance layer plane and conduit coupling;
Number of holders is more than 1, its dismountable being installed on the lathe bed.
Also be provided with kick among the present invention and prop up top mechanism, kick props up top mechanism and detachably is installed on the lathe bed, and connects universal adjustable pedestal.Kick props up the further position of fixed hydraulic thrust power machine group of top mechanism.
Among the present invention, conduit coupling is provided with the gland that is used for fixing composite seal.Specifically because internal pipe pressure is very high in hydraulic testing process, composite gland bush sometimes from slit, top that the pipeline joint flange contacts skid off, add upper press cover after, just composite seal well can be pressed on the pipeline joint flange.
Among the present invention, described intake tunnel comprises water inlet pipe and water inlet; Gas exhaust duct comprises gas outlet, vent valve and tensimeter.Specifically, water filling in pipeline hydraulic pressure hydraulic testing process, needing to pipeline, get rid of inner air tube simultaneously, this device in use, water inlet and gas outlet all are positioned at pipe interior, water inlet pipe and vent valve, tensimeter are positioned at the pipeline outside, can conveniently carry out the control of water filling or exhaust according to actual conditions.
Among the present invention, the shearing resistance layer of described composite seal is a flexible metal sheet, and the elastic compensating layer is the toughening rubber plate.Specifically, composite seal is to guarantee the critical component of pipeline when doing high pressure hydraulic testing sealing, because pipe thickness is from thicker reached at the δ 16 of δ 3.2-12.7, the stupefied meeting in the limit of pipe end produces the shearing situation to seal, utilizes the high pressure resistant anti-shearing effect of playing of metal smoothening face so composite seal is positioned at outside shearing resistance layer flexible metal sheet; Elastic compensating layer toughening rubber plate can compensate because the pipe end that the cutting of pipeline tack produces and the micro-deviation of pipeline axial verticality.
Among the present invention, conduit coupling is a seal flange, comprises a coaxial boss that above diameter is different; Composite seal is located on the raised head face, and its symcenter overlaps with the boss center of circle.Specifically, the pipeline that the different coaxial boss of a plurality of diameters makes the seal flange in this device can adapt to various different latus rectums carries out hydro-test, and the diameter of composite seal is also according to the diameter of boss and corresponding change.
Among the present invention, described top of the trellis is provided with two semicircular ring structures and flexibly connects the clip that forms, between clip and the support for removably connecting.When being used for general pipeline, can only support pipeline with support, support is provided with adjustable for height mechanism, and its top can be plane or cambered surface; Clip is used for the fixing of more elongated pipeline, can select the clip of corresponding size according to the diameter of pipeline.
Among the present invention, lathe bed comprises lathe bed pedestal, brace summer, and brace summer is fixed on the lathe bed pedestal.
Among the present invention, the lathe bed pedestal is a fixing box beam on the cast concrete base, and brace summer is the combined girder steel of I-shaped cross-section, and it is welded on the box beam, and bottom two flanks are provided with 1 above euphroe.Specifically, the substrate of reinforced concrete cooperates box beam, and its intensity can adapt to pipeline up to a hundred tons the moment of flexure that sealing force is brought in high pressure pressure testing process and carry the power of contending with.Brace summer is welded on the box beam, is furnished with bolt hole on it, can by bolt hydraulic thrust power unit be fixed on corresponding position according to the length of pressure testing pipeline, makes the application point span of distance rod have certain adjustable extent.
Among the present invention, euphroe is symmetrical arranged on two flanks of the bottom of brace summer.Euphroe can coil the knot nylon rope or the rope made of hemp, is used for the auxiliary fastening of elongated especially pipeline.
Beneficial effect of the present invention is: in use, can by the universal adjustment pedestal hydraulic power unit be installed on the lathe bed according to the length for the treatment of test pipe, and distance rod connecting tube web member seal flange, support holds up steel pipe; Regulate the horizontal and vertical position of universal adjustable pedestal, or the picking-up height of adjusting support, the axial line of pipeline axial line and conduit coupling seal flange is located along the same line, the back is fixed hydraulic thrust power machine group further, and according to the parameter request of hydro-test to work such as pipeline carry out that follow-up exhaust water-filling is exerted pressure.Preferred many latus rectums of conduit coupling seal flange can adapt to the pressure testing pipeline of multiple diameter, on the sealing surface with wait to test the contacted position of tube wall and be provided with composite seal, composite seal is composited by the anti-shearing layer of toughening rubber plate basic unit and flexible metal, when treating that test pipe links to each other, the anti-shearing layer in flexible metal can be resisted the shearing of the limit of pipe end to seal, the section that high tenacity rubber basic unit produces in the time of can compensating owing to the cutting of pipeline tack and the deviation of pipeline axial verticality, realize axial seal and treat the high request of external diameter surface finish in the test pipe or other parameters need not consider to adopt other seal form the time, reach the good purpose of less investment effect.
Description of drawings
Figure 1 shows that pipeline hydraulic testing apparatus general assembly synoptic diagram of the present invention;
Fig. 2 is depicted as hydraulic thrust power unit synoptic diagram;
Figure 3 shows that A-A is to view among Fig. 2;
Figure 4 shows that conduit coupling seal flange synoptic diagram;
Figure 5 shows that the conduit coupling seal flange synoptic diagram of many latus rectums;
Figure 6 shows that embodiment support and clip among the present invention cooperate synoptic diagram;
The B-B that Figure 7 shows that Fig. 6 is to view.
Embodiment
For content of the present invention is become apparent more, existing the present invention will be further described with embodiment in conjunction with the accompanying drawings.
Extremely shown in Figure 7 in conjunction with Fig. 1, pipeline hydraulic testing apparatus of the present invention comprises testing machine lathe bed 1, lathe bed 1 is provided with hydraulic thrust power unit, conduit coupling 3, composite seal 31, support 14, wherein: described universal adjustable pedestal 21 dismountable being installed on the lathe bed 1, it comprises top board, vertically modulating mechanism 211, the horizontal adjustment structure 214 of U-shaped, and the base plate of hydraulic thrust power unit is positioned at the groove of U-shaped top board; Vertically modulating mechanism 211 is for vertically to be installed on four angles of hydraulic thrust power unit base plate, and with the base plate of hydraulic thrust power unit between screw rod for being threaded; Level(l)ing mechanism 214 is installed on the screw rod on the U-shaped top board two side of universal adjustable pedestal 21 for the horizontal direction symmetry, the screw rod bottom is positioned on two symmetrical sides of hydraulic thrust power unit base plate; The distance rod 22 of two hydraulic thrust engines 2 is connecting tube web member 3 respectively, one of them conduit coupling 3 is provided with the exhaust passage, the exhaust passage comprises gas outlet 33, vent valve 34, tensimeter 35, another conduit coupling is provided with intake tunnel, and intake tunnel comprises water inlet, water inlet pipe 32; The end face of the other end of conduit coupling and distance rod 22 links is provided with annular groove, and composite seal 31 places in the groove; Described composite seal 31 comprises shearing resistance layer 311, elastic compensating layer 312, and when placing in the groove of conduit coupling 3, elastic compensating layer 312 is positioned at bottom portion of groove, the end face of shearing resistance layer 311 plane and conduit coupling 3; Support 14 quantity are more than 1, its dismountable being installed on the lathe bed 1.
In conjunction with Fig. 2, shown in Figure 3, hydraulic thrust power unit is fixed on the lathe bed brace summer by universal adjustable pedestal, four bolts in universal adjustable pedestal top 211 are vertically modulating mechanism, be used to regulate the height and position of hydraulic pressure thrust power machine 2, four bolts in side 214 are level(l)ing mechanism, be used to regulate horizontal level, the central shaft and pipeline 4 central shafts of conduit coupling 3 seal flanges that the distance rod 22 of hydraulic thrust power unit connects are overlapped.
In conjunction with Fig. 4, Figure 5 shows that conduit seals 3 of the present invention, i.e. seal flange, its raised head face is provided with composite seal 31, can play the effect of axial seal when pipeline pressure test, the setting of gland 34 makes composite seal 31 difficult drop-offs; Fig. 5 is preferred many latus rectums seal flange, the boss of its a plurality of cast-in-block different-diameters can make same seal flange adapt to the test pipe of multiple diameter, be divided into according to the latus rectum scope during concrete enforcement that (caliber, (DN500---DN1000) big caliber among DN125-DN150) little caliber, (DN200---DN450) reduce the input cost of equipment.
In conjunction with Fig. 6, shown in Figure 7, medium-height trestle 14 of the present invention is used for holding up steel pipe, and support 14 is provided with adjustable for height mechanism, with adjusting the height that pipeline holds up as required.When being used for more elongated pipeline pressure test, can assist dismountable clip 15 and euphroe 16 to cooperate rope sling to fix pipeline.
When carrying out the pipeline pressure test test, the position of adjusting each several part earlier is also fixing, and the back starts the oil pressure pump system, according to pipe diameter and the hydraulic testing parameter request system oil pressure is adjusted to corresponding force value; The propulsive thrust bar compresses in advance, composite seal compression 2mm stops during the left and right sides, in pipeline, inject water under high pressure, close vent valve after the emptying of gas outlet gas, boost to setting in waiting to manage, and after making hydraulic pressure pressure experiment value follow-up pressure up to standard keep certain hour by technical requirement, pressure release is the distance rod pressure testing process that resets and finish unit pipe simultaneously.
Concrete case study on implementation only is a preferable case study on implementation of the present invention described in the present invention, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be as technology category of the present invention.
Claims (10)
1. a pipeline hydraulic testing apparatus comprises testing machine lathe bed (1), and lathe bed (1) is provided with hydraulic thrust power unit, it is characterized in that, also comprises conduit coupling (3), composite seal (31), support (14), wherein:
Hydraulic thrust power unit comprises two hydraulic thrust engines, and its base plate is individually fixed on two universal adjustable pedestals (21), and distance rod is relative;
Described universal adjustable pedestal (21) is dismountable to be installed on the lathe bed (1), and it comprises top board, vertically modulating mechanism (211), the horizontal adjustment structure (214) of U-shaped, and the base plate of hydraulic thrust power unit is positioned at the groove of U-shaped top board; Vertically modulating mechanism (211) is for vertically to be installed on four angles of hydraulic thrust power unit base plate, and with the base plate of hydraulic thrust power unit between screw rod for being threaded; Level(l)ing mechanism (214) is the screw rod on the horizontal direction symmetry is installed on universal adjustable pedestal (21) the U-shaped top board two side, and the screw rod bottom is positioned on two symmetrical sides of hydraulic thrust power unit base plate.
The distance rod of two hydraulic thrust engines (22) is connecting tube web member (3) respectively, and one of them conduit coupling is provided with the exhaust passage, and another conduit coupling is provided with intake tunnel; The end face of the other end of conduit coupling and distance rod link is provided with annular groove, and composite seal (31) places in the groove;
Described composite seal (31) comprises shearing resistance layer (311), elastic compensating layer (312), and when placing in the groove of conduit coupling (3), elastic compensating layer (312) is positioned at bottom portion of groove, the end face of shearing resistance layer (311) plane and conduit coupling;
Support (14) quantity is more than 1, its dismountable being installed on the lathe bed (1).
2. pipeline hydraulic testing apparatus according to claim 1 is characterized in that, comprises that also kick props up top mechanism (17), and kick props up top mechanism (17) and detachably is installed on the lathe bed (1), and connects universal adjustable pedestal (21).
3. pipeline hydraulic testing apparatus according to claim 1 and 2 is characterized in that, conduit coupling (3) is provided with the gland (37) that is used for fixing composite seal.
4. pipeline hydraulic testing apparatus according to claim 1 and 2 is characterized in that, described intake tunnel comprises water inlet pipe (32) and water inlet (36); Gas exhaust duct comprises gas outlet (33), vent valve (34) and tensimeter (35).
5. pipeline hydraulic testing apparatus according to claim 1 and 2 is characterized in that, the shearing resistance layer (311) of described composite seal (31) is a flexible metal sheet, and elastic compensating layer (312) is the toughening rubber plate.
6. pipeline hydraulic testing apparatus according to claim 1 and 2 is characterized in that, conduit coupling (3) is a seal flange, comprises a coaxial boss that above diameter is different; Composite seal (31) is located in the groove on the raised head face, and its symcenter overlaps with the boss center of circle.
7. pipeline hydraulic testing apparatus according to claim 1 and 2 is characterized in that, described support (14) is provided with two semicircular ring structures and flexibly connects the clip (15) that forms, between clip (15) and the support (14) for removably connecting.
8. pipeline hydraulic testing apparatus according to claim 1 and 2 is characterized in that, lathe bed (1) comprises lathe bed pedestal, brace summer (11), and brace summer (11) is fixed on the lathe bed pedestal.
9. pipeline hydraulic testing apparatus according to claim 8, it is characterized in that, the lathe bed pedestal is that cast concrete base (13) goes up fixedly box beam (12), brace summer (11) is the combined girder steel of I-shaped cross-section, it is fixed on the box beam (12), and bottom two flanks are provided with 1 above euphroe (16).
10. pipeline hydraulic testing apparatus according to claim 9 is characterized in that, euphroe (16) is symmetrical arranged on two flanks of the bottom of brace summer (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105206873A CN101984337B (en) | 2010-10-27 | 2010-10-27 | Pipeline hydraulic test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105206873A CN101984337B (en) | 2010-10-27 | 2010-10-27 | Pipeline hydraulic test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101984337A true CN101984337A (en) | 2011-03-09 |
| CN101984337B CN101984337B (en) | 2012-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105206873A Active CN101984337B (en) | 2010-10-27 | 2010-10-27 | Pipeline hydraulic test device |
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| CN (1) | CN101984337B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267617A (en) * | 2013-05-13 | 2013-08-28 | 上海盾构设计试验研究中心有限公司 | Device for testing abutting and sealing performance of shield machine |
| CN104048803A (en) * | 2013-03-14 | 2014-09-17 | 天源环保有限公司 | Pipe pressing technology and device thereof |
| CN104237017A (en) * | 2013-06-19 | 2014-12-24 | 山东亿家能太阳能有限公司 | Static inner pressure test equipment for glass vacuum pipe |
| CN104344952A (en) * | 2014-11-18 | 2015-02-11 | 武汉船用机械有限责任公司 | Horizontal pressure testing method for shafting copper bush of controllable-pitch propeller |
| CN105628312A (en) * | 2015-12-30 | 2016-06-01 | 芜湖恒耀汽车零部件有限公司 | Exhaust pipe welding quality airtightness detection system |
| CN108507869A (en) * | 2018-06-21 | 2018-09-07 | 中国重型机械研究院股份公司 | A kind of Large Diameter Pipeline steel tube water pressure test system and method |
| CN108500892A (en) * | 2018-04-03 | 2018-09-07 | 新兴河北工程技术有限公司 | A kind of push head device that changeable end is stifled |
| CN110987598A (en) * | 2019-11-05 | 2020-04-10 | 深圳嘉力达节能科技有限公司 | Water pressure testing frame |
| CN112748018A (en) * | 2020-12-29 | 2021-05-04 | 浙江德创环保科技股份有限公司 | Reliably sealed marine glass fiber reinforced plastic GRE pipe external pressure test device |
| CN113588514A (en) * | 2021-07-21 | 2021-11-02 | 浙江艺谛环境设备有限公司 | Electrodialysis pole water plate water pressure testing tool and detection method |
| CN113958881A (en) * | 2021-10-25 | 2022-01-21 | 南京惟真智能管网科技研究院有限公司 | Natural gas pipeline safety evaluation method, system and method |
| CN114441114A (en) * | 2022-04-07 | 2022-05-06 | 山东昆嵛电缆有限公司 | Cable sheath sealing performance detection device and method |
| CN114441319A (en) * | 2020-10-19 | 2022-05-06 | 中国石油化工股份有限公司 | Pipe pressure testing device and pipe pressure testing method |
| CN115164105A (en) * | 2022-05-20 | 2022-10-11 | 江苏常宝滔邦石油管件有限公司 | Petroleum pipe fitting sealing connection device with heat insulation compensation function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4465104A (en) * | 1981-02-27 | 1984-08-14 | Hughes Tool Company | Pressure energized pipeline plug |
| CN2507006Y (en) * | 2001-07-25 | 2002-08-21 | 高国武 | Water pressure test machine |
| JP2006084474A (en) * | 2005-09-26 | 2006-03-30 | Kurimoto Ltd | Hydraulic pressure tester |
| CN200989868Y (en) * | 2006-12-25 | 2007-12-12 | 承德市金建检测仪器有限公司 | Sealing head for plastic pipe fitting pressure resisting, explosion experiment use |
| CN201828463U (en) * | 2010-10-27 | 2011-05-11 | 南京宝色股份公司 | Hydraulic testing device of pipeline |
-
2010
- 2010-10-27 CN CN2010105206873A patent/CN101984337B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4465104A (en) * | 1981-02-27 | 1984-08-14 | Hughes Tool Company | Pressure energized pipeline plug |
| CN2507006Y (en) * | 2001-07-25 | 2002-08-21 | 高国武 | Water pressure test machine |
| JP2006084474A (en) * | 2005-09-26 | 2006-03-30 | Kurimoto Ltd | Hydraulic pressure tester |
| CN200989868Y (en) * | 2006-12-25 | 2007-12-12 | 承德市金建检测仪器有限公司 | Sealing head for plastic pipe fitting pressure resisting, explosion experiment use |
| CN201828463U (en) * | 2010-10-27 | 2011-05-11 | 南京宝色股份公司 | Hydraulic testing device of pipeline |
Non-Patent Citations (1)
| Title |
|---|
| 《钢管》 20060430 卫凌云等 我国首条双头高压水压试验机生产线的研制 第35卷, 第2期 2 * |
Cited By (20)
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| CN104048803A (en) * | 2013-03-14 | 2014-09-17 | 天源环保有限公司 | Pipe pressing technology and device thereof |
| CN103267617A (en) * | 2013-05-13 | 2013-08-28 | 上海盾构设计试验研究中心有限公司 | Device for testing abutting and sealing performance of shield machine |
| CN103267617B (en) * | 2013-05-13 | 2015-09-02 | 上海盾构设计试验研究中心有限公司 | Shield structure Butt sealing performance test apparatus |
| CN104237017B (en) * | 2013-06-19 | 2017-03-29 | 山东亿家能太阳能有限公司 | The quiet inner pressure test equipment of glass-vacuum tube |
| CN104237017A (en) * | 2013-06-19 | 2014-12-24 | 山东亿家能太阳能有限公司 | Static inner pressure test equipment for glass vacuum pipe |
| CN104344952A (en) * | 2014-11-18 | 2015-02-11 | 武汉船用机械有限责任公司 | Horizontal pressure testing method for shafting copper bush of controllable-pitch propeller |
| CN105628312A (en) * | 2015-12-30 | 2016-06-01 | 芜湖恒耀汽车零部件有限公司 | Exhaust pipe welding quality airtightness detection system |
| CN108500892A (en) * | 2018-04-03 | 2018-09-07 | 新兴河北工程技术有限公司 | A kind of push head device that changeable end is stifled |
| CN108500892B (en) * | 2018-04-03 | 2024-03-15 | 新兴河北工程技术有限公司 | Plug device capable of switching end plugs |
| CN108507869A (en) * | 2018-06-21 | 2018-09-07 | 中国重型机械研究院股份公司 | A kind of Large Diameter Pipeline steel tube water pressure test system and method |
| CN108507869B (en) * | 2018-06-21 | 2023-11-07 | 中国重型机械研究院股份公司 | Hydraulic test system and method for large-diameter steel pipe |
| CN110987598A (en) * | 2019-11-05 | 2020-04-10 | 深圳嘉力达节能科技有限公司 | Water pressure testing frame |
| CN114441319A (en) * | 2020-10-19 | 2022-05-06 | 中国石油化工股份有限公司 | Pipe pressure testing device and pipe pressure testing method |
| CN112748018A (en) * | 2020-12-29 | 2021-05-04 | 浙江德创环保科技股份有限公司 | Reliably sealed marine glass fiber reinforced plastic GRE pipe external pressure test device |
| CN113588514A (en) * | 2021-07-21 | 2021-11-02 | 浙江艺谛环境设备有限公司 | Electrodialysis pole water plate water pressure testing tool and detection method |
| CN113958881A (en) * | 2021-10-25 | 2022-01-21 | 南京惟真智能管网科技研究院有限公司 | Natural gas pipeline safety evaluation method, system and method |
| CN114441114A (en) * | 2022-04-07 | 2022-05-06 | 山东昆嵛电缆有限公司 | Cable sheath sealing performance detection device and method |
| CN114441114B (en) * | 2022-04-07 | 2022-06-21 | 山东昆嵛电缆有限公司 | Cable sheath sealing performance detection device and method |
| CN115164105A (en) * | 2022-05-20 | 2022-10-11 | 江苏常宝滔邦石油管件有限公司 | Petroleum pipe fitting sealing connection device with heat insulation compensation function |
| CN115164105B (en) * | 2022-05-20 | 2023-09-29 | 江苏常宝滔邦石油管件有限公司 | Petroleum pipe fitting sealing connection device with adiabatic compensation function |
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| CN101984337B (en) | 2012-04-25 |
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