CN107860661A - A kind of high pressure resistant oil-gas pipeline hydraulic pressure testing device - Google Patents
A kind of high pressure resistant oil-gas pipeline hydraulic pressure testing device Download PDFInfo
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- CN107860661A CN107860661A CN201711006650.7A CN201711006650A CN107860661A CN 107860661 A CN107860661 A CN 107860661A CN 201711006650 A CN201711006650 A CN 201711006650A CN 107860661 A CN107860661 A CN 107860661A
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- gas pipeline
- resistant oil
- pressure
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- 238000012360 testing method Methods 0.000 title claims abstract description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 238000003825 pressing Methods 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims description 26
- 238000007906 compression Methods 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- Life Sciences & Earth Sciences (AREA)
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- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of high pressure resistant oil-gas pipeline hydraulic pressure testing device, including test support, piston plate, water tank, hydraulic pressure test cylinder, piston rod, anti-slip top pressing device and high pressure resistant oil-gas pipeline, the test support upper end is welded with pipe clip tool, high pressure resistant oil-gas pipeline is clamped with pipe clip tool, the high pressure resistant oil-gas pipeline both ends are equipped with ring flange, the ring flange at the high pressure resistant oil-gas pipeline both ends has been bolted end-plate, and hydraulic pressure test cylinder is welded with the outside of the end-plate of high pressure resistant oil-gas pipeline one end connection；It is convenient to assemble and dismantle, stability is good, piston plate forward slip compressed air is set to compress chamber air by being pumped into water stream S into hydraulic pressure test cylinder, realize the detection to high pressure resistant oil-gas pipeline compressive resistance, it is convenient and swift, test experience is easily operated, suitable for the measurement of high pressure resistant oil-gas pipeline performance.
Description
Technical field
The present invention relates to Oil ＆ Gas Pipeline Testing field, specifically a kind of high pressure resistant oil-gas pipeline is filled with hydraulic pressure test
Put.
Background technology
Oil-gas pipeline carries the transformation task of a large amount of petroleum resourceses in China, is related to national security, the sum of social economy
Humorous stable development, the pressure-resistant performance of oil-gas pipeline must be strict with, effectively can avoid or reduce loss.
With being continuously increased for oil-gas pipeline construction and mileage, oil gas pipeline caused by the problems such as pressure is excessive when revealing
Between the frequency that occurs also need to carry out strict test to its pressure-resistant performance before oil gas pipe laying in gradual increase, so as to will
Standard compliant pipeline filters out to be used further to install laying.But lack be directed to high pressure resistant oil-gas pipeline at present
Test equipment, therefore, it is necessary to a kind of high pressure resistant oil-gas pipeline meets the use of oil gas pipe laying with hydraulic pressure testing device
Demand.
The content of the invention
It is an object of the invention to provide a kind of high pressure resistant oil-gas pipeline hydraulic pressure testing device, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the present invention provides following technical scheme：
A kind of high pressure resistant oil-gas pipeline hydraulic pressure testing device, including test support, piston plate, water tank, hydraulic pressure test cylinder, work
Stopper rod, anti-slip top pressing device and high pressure resistant oil-gas pipeline, the test support upper end are welded with pipe clip tool, pipe clip tool
On be clamped with high pressure resistant oil-gas pipeline, the high pressure resistant oil-gas pipeline both ends are equipped with ring flange, the high pressure resistant oil-gas pipeline
The ring flange at both ends has been bolted end-plate, is welded on the outside of the end-plate of high pressure resistant oil-gas pipeline one end connection
There is hydraulic pressure test cylinder, water under high pressure chamber is set to inside hydraulic pressure test cylinder, piston rod, the end-plate are equipped with hydraulic pressure test cylinder
Inner side is welded with stream cover, and stream cover middle part is provided with the piston rod through-hole passed through for piston rod, and stream cover is provided with some uniform flows
Hole, flow cover side wall and be provided with some anti-slip top pressing devices, the anti-slip top pressing device is by top pressure piston, compression bar, anti-slip top
Pressure pad and top pressure sleeve composition, the top pressure sleeve weld are flowing in cover side wall, top pressure piston are provided with top pressure sleeve, is pushed up
Piston is pressed to connect anti-slip top pressure pad by compression bar, compression bar is located on top pressure sleeve, anti-slip top pressure pad and high pressure resistant oil gas
Inner-walls of duct offsets；The piston rod other end connects piston plate, and the hydraulic pressure test cylinder bottom connects high pressure feed tube and returned
Flow tube, is provided with liquid inlet electromagnetic valve on the high pressure feed tube, high pressure feed tube connection high-pressure pump, high-pressure pump connection water tank,
The return duct connects water tank, is provided with return flow solenoid valve on return duct, the high-pressure pump and water tank are installed in test
On support, the hydraulic pressure test cylinder upper end is provided with water pressure table；The end-plate of the high pressure resistant oil-gas pipeline other end connection
Inner side is provided with sealing-plug, and air compression chamber is set in the high pressure resistant oil-gas pipeline between the sealing-plug and piston plate.
As the further scheme of the present invention：The piston rod outer end passes hydraulic pressure test cylinder connection baffle plate, baffle plate and water
Upper cover of piston rod between pressure test barrel is provided with spring, and being provided with O-ring seal between piston rod and the hydraulic pressure test cylinder is carried out
Sealing.
As the further scheme of the present invention：The piston rod other end is located in high pressure resistant through end-plate and ring flange
Inside oil-gas pipeline.
As the further scheme of the present invention：The piston plate edge is provided with sealing ring clip, and card is set in sealing ring clip
There is sealing ring, sealing ring offsets with high pressure resistant oil-gas pipeline.
As the further scheme of the present invention：It is set to high in high pressure resistant oil-gas pipeline between the piston plate and stream cover
Current top pressure room is pressed, High-Pressure Water top pressure room passes through some uniform flow holes and water under high pressure chamber.
As the further scheme of the present invention：Laser range finder is installed in the middle part of the sealing-plug, laser range finder is same
Distance measurement feedback plate is installed on the piston plate of axis.
As the further scheme of the present invention：Gas gauge is installed, the row of being provided with sealing-plug on the sealing-plug
Tracheae, blast pipe are connected with air compression chamber, and exhaust solenoid valve is provided with blast pipe.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, when flowing internal mask pressure enhancing, the top pressure piston stress in top pressure sleeve laterally slide by top pressure, so as to pass through top
Depression bar drives the outside lateral movement of anti-slip top pressure pad to be pushed against with high pressure resistant oil-gas pipeline inwall, avoids stream from covering from high pressure resistant Oil/Gas Pipe
Slipped in road, enhance the stability of connection, be not easy to slip.
2nd, when high pressure pump work, the water under high pressure that water tank is pumped to by water by high pressure feed tube in hydraulic pressure test cylinder
In chamber, liquid inlet volume is adjusted by liquid inlet electromagnetic valve, entered into the water in water under high pressure chamber through inlet through hole in stream cover,
And flowed into through some uniform flow holes in High-Pressure Water top pressure room, influenceed by hydraulic pressure increase, the anti-slip top pressure pad of anti-slip top pressing device
Ejection pushes against with high pressure resistant oil-gas pipeline inwall, and at the same time, piston plate and sealing ring inwardly break away along high pressure resistant oil-gas pipeline
Move and compress air in high pressure resistant oil-gas pipeline, piston rod is together moved with piston plate and sealing ring and compression spring；
3rd, when needing pressure release, return flow solenoid valve is opened, high-pressure water chamber indoor water flows back to water tank, water under high pressure chamber along return duct
Reduce with High-Pressure Water top pressure room pressure, under spring force effect, piston rod together moves instead with piston plate and sealing ring
It is easy to operate to slip.
4th, change the distance between is conveniently detected between sealing-plug and piston plate by laser range finder；Gas gauge side
Just pressure change in air compression chamber is detected；Exhaust solenoid valve is opened conveniently by air compression chamber air discharge, it is convenient to sky
Air pressure contracting intracavitary pressure is adjusted.
5th, it is convenient to assemble and dismantle, and stability is good, makes piston plate forward by being pumped into water stream S into hydraulic pressure test cylinder
Sliding compression air compresses chamber air, realizes the detection to high pressure resistant oil-gas pipeline compressive resistance, convenient and swift, test experience
It is easily operated, suitable for the measurement of high pressure resistant oil-gas pipeline performance.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of mesohigh current top pressure room of the present invention.
Fig. 3 is the structural representation of anti-slip top pressing device in the present invention.
In figure：1- tests support, 2- laser range finders, 3- air compression chamber, 4- piston plates, 5- flow cover, 6- water inlets are led to
Hole, 7- end-plates, 8- high pressures feed tube, 9- liquid inlet electromagnetic valves, 10- high-pressure pumps, 11- water tanks, 12- return flow solenoid valves, 13- are returned
Flow tube, 14- springs, 15- baffle plates, 16- hydraulic pressure tests cylinder, 17- water under high pressures chamber, 18- water pressure tables, 19- piston rods, 20- spiral shells
Bolt, 21- ring flanges, the anti-slip top pressing devices of 22-, 23- sealing rings, 24- distance measurement feedbacks plate, the high pressure resistant oil-gas pipelines of 25-, 26- pipes
Stationary fixture, 27- sealing-plugs, 28- exhaust solenoid valves, 29- blast pipes, 30- gas gauges, 31- uniform flows hole, 32- sealing rings
Clip, 33- High-Pressure Water top pressures room, 34- pistons rod through-hole, 35- top pressures piston, 36- compression bars, 37- anti-slip tops pressure pad, 38-
Top pressure sleeve.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Refer to Fig. 1~3, in the embodiment of the present invention, a kind of high pressure resistant oil-gas pipeline hydraulic pressure testing device, including test
Support 1, piston plate 4, water tank 11, hydraulic pressure test cylinder 16, piston rod 19, anti-slip top pressing device 22 and high pressure resistant oil-gas pipeline
25, test support 1 upper end is welded with pipe clip tool 26, and high pressure resistant oil-gas pipeline 25 is clamped with pipe clip tool 26,
The both ends of high pressure resistant oil-gas pipeline 25 are equipped with the ring flange 21 of convenient connection, the method at the high pressure resistant both ends of oil-gas pipeline 25
Blue disk 21 is connected with end-plate 7 by bolt 20, and the outside of end-plate 7 of the high pressure resistant one end of oil-gas pipeline 25 connection is welded
There is hydraulic pressure test cylinder 16, water under high pressure chamber 17 be set to inside hydraulic pressure test cylinder 16, piston rod 19 is equipped with hydraulic pressure test cylinder 16,
The outer end of piston rod 19 passes hydraulic pressure test cylinder 16 and connects baffle plate 15, is covered on the piston rod 19 between baffle plate 15 and hydraulic pressure test cylinder 16
Provided with spring 14, sealed between the piston rod 19 and hydraulic pressure test cylinder 16 provided with O-ring seal.
The other end of piston rod 19 is located in inside high pressure resistant oil-gas pipeline 25 through end-plate 7 and ring flange 21, institute
State the inner side of end-plate 7 and be welded with stream cover 5, the middle part of stream cover 5 is provided with the piston rod through-hole 34 passed through for piston rod 19, stream cover
5 are provided with some uniform flow holes 31, and 5 side walls of stream cover are provided with some anti-slip top pressing devices 22.
Specifically, the anti-slip top pressing device 22 is by top pressure piston 35, compression bar 36, anti-slip top pressure pad 37 and top pressure sleeve
38 compositions, the top pressure sleeve 38 are welded in 5 side walls of stream cover, top pressure piston 35 are provided with top pressure sleeve 38, top pressure is lived
Plug 35 connects anti-slip top pressure pad 37 by compression bar 36, and compression bar 36 is located on top pressure sleeve 38, anti-slip top pressure pad 37 with it is resistance to
The inwall of high-pressure oil-gas pipeline 25 offsets, and when pressure enhancing in stream cover 5, the stress of top pressure piston 35 in top pressure sleeve 38 is outside
Side top pressure is slided, so as to drive the 37 outside lateral movement of anti-slip top pressure pad to be supported with the high pressure resistant inwall of oil-gas pipeline 25 by compression bar 36
Tightly, stream cover 5 is avoided to be slipped out of high pressure resistant oil-gas pipeline 25.
The other end of piston rod 19 connects piston plate 4, and the edge of piston plate 4 is provided with sealing ring clip 32, sealing ring clip
Sealing ring 23 is arranged with 32, sealing ring 23 offsets with high pressure resistant oil-gas pipeline 25, between the piston plate 4 and stream cover 5
High-Pressure Water top pressure room 33 is set in high pressure resistant oil-gas pipeline 25, High-Pressure Water top pressure room 33 passes through some uniform flow holes 31 and high pressure
Water chamber 17 connects.
The bottom of hydraulic pressure test cylinder 16 connects high pressure feed tube 8 and return duct 13, is provided with the high pressure feed tube 8
Liquid inlet electromagnetic valve 9, high pressure feed tube 8 connect high-pressure pump 10, and high-pressure pump 10 connects water tank 11, and the return duct 13 connects water storage
Tank 11, return flow solenoid valve 12 being installed on return duct 13, the high-pressure pump 10 and water tank 11 are installed on test support 1,
The upper end of hydraulic pressure test cylinder 16 is provided with water pressure table 18；When high-pressure pump 10 works, water tank 11 is passed through into high pressure by water
Feed tube 8 is pumped in the water under high pressure chamber 17 in hydraulic pressure test cylinder 16, liquid inlet volume is adjusted by liquid inlet electromagnetic valve 9, into height
Press the water in water chamber 17 to enter through inlet through hole 6 in stream cover 5, and High-Pressure Water top pressure is flowed into through some uniform flow holes 31
In room 33, influenceed by hydraulic pressure increase, the ejection of anti-slip top pressure pad 37 and the high pressure resistant inwall of oil-gas pipeline 25 of anti-slip top pressing device 22
Push against, at the same time, piston plate 4 and sealing ring 23 along high pressure resistant 25 inside Slideslip of oil-gas pipeline and compress high pressure resistant Oil/Gas Pipe
Air in road 25, piston rod 19 is together moved with piston plate 4 and sealing ring 23 and compression spring 14；When needing pressure release, open
Return flow solenoid valve 12, water flows back to water tank 11, water under high pressure chamber 17 and High-Pressure Water top along return duct 13 in water under high pressure chamber 17
Pressure reduces in pressure chamber 33, and under the effect of the elastic force of spring 14, piston rod 19 with piston plate 4 and sealing ring 23, together slide by the reversing of motion
It is dynamic, it is easy to operate.
The inner side of end-plate 7 of the other end of high pressure resistant oil-gas pipeline 25 connection is provided with sealing-plug 27, the sealing-plug
Air compression chamber 3 is set in high pressure resistant oil-gas pipeline 25 between 27 and piston plate 4, the middle part of sealing-plug 27 is provided with laser
Rangefinder 2, distance measurement feedback plate 24 is installed on the piston plate 4 of 2 same axis of laser range finder, passes through the convenience of laser range finder 2
The distance between detect between sealing-plug 27 and piston plate 4 change；Gas gauge 30, gas are installed on the sealing-plug 27
Pressure change in the convenient detection air compression chamber 3 of pressure gauge 30；Blast pipe 29 is installed on the sealing-plug 27, blast pipe 29 with
Air compression chamber 3 is connected, and exhaust solenoid valve 28 is provided with blast pipe 29, and it is convenient by air compression chamber to open exhaust solenoid valve 28
Air is discharged in 3, convenient that pressure in air compression chamber 3 is adjusted.
A kind of high pressure resistant oil-gas pipeline hydraulic pressure testing device, it is convenient to assemble and dismantle, and stability is good, by water
Being pumped into water stream S in pressure test barrel 16 makes air in the forward slip compressed air compression chamber 3 of piston plate 4, realizes to high pressure resistant oil
The detection of the compressive resistance of feed channel 25, good airproof performance, easy to detect quick, test experience is easily operated, suitable for high pressure resistant oil
The measurement of the performance of feed channel 25.
The invention is not limited in above-described embodiment, on the basis of technical scheme disclosed by the invention, the skill of this area
Art personnel are according to disclosed technology contents, it is not necessary to which performing creative labour can makes one to some of which technical characteristic
A little simple modification, equivalent change and modifications, are belonged in the range of technical solution of the present invention.
, it is necessary to illustrate in the description of this specification, unless otherwise clearly defined and limited, term " setting ",
" connected " and " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly be connected
Connect；Can be joined directly together, can also be indirectly connected by intermediary, can be the connection of two element internals.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Claims (7)
1. a kind of high pressure resistant oil-gas pipeline hydraulic pressure testing device, including test support (1), piston plate (4), water tank (11),
Hydraulic pressure test cylinder (16), piston rod (19), anti-slip top pressing device (22) and high pressure resistant oil-gas pipeline (25), it is characterised in that institute
State test support (1) upper end and be welded with pipe clip tool (26), high pressure resistant oil-gas pipeline is clamped with pipe clip tool (26)
(25), high pressure resistant oil-gas pipeline (25) both ends are equipped with ring flange (21), high pressure resistant oil-gas pipeline (25) both ends
Ring flange (21) is connected with end-plate (7), the end seal of high pressure resistant oil-gas pipeline (25) one end connection by bolt (20)
Hydraulic pressure test cylinder (16) is welded with the outside of plate (7), water under high pressure chamber (17), hydraulic pressure test cylinder are set to inside hydraulic pressure test cylinder (16)
(16) piston rod (19) is equipped with, stream cover (5) is welded with the inside of the end-plate (7), is provided with the middle part of stream cover (5) for living
The piston rod through-hole (34) that stopper rod (19) passes through, stream cover (5) are provided with some uniform flow holes (31), are set in stream cover (5) side wall
There are some anti-slip top pressing devices (22), the anti-slip top pressing device (22) is by top pressure piston (35), compression bar (36), anti-skidding top pressure
(37) and top pressure sleeve (38) composition are padded, the top pressure sleeve (38) is welded in stream cover (5) side wall, in top pressure sleeve (38)
Top pressure piston (35) is installed, top pressure piston (35) connects anti-slip top pressure pad (37) by compression bar (36), and compression bar (36) is worn
It is located on top pressure sleeve (38), anti-slip top pressure pad (37) offsets with high pressure resistant oil-gas pipeline (25) inwall；The piston rod (19)
Other end connection piston plate (4), hydraulic pressure test cylinder (16) the bottom connection high pressure feed tube (8) and return duct (13), it is described
Liquid inlet electromagnetic valve (9), high pressure feed tube (8) connection high-pressure pump (10), high-pressure pump (10) connection are installed on high pressure feed tube (8)
Water tank (11), the return duct (13) connects water tank (11), return flow solenoid valve (12) is provided with return duct (13), described
High-pressure pump (10) and water tank (11) are installed on test support (1), and hydraulic pressure test cylinder (16) upper end is provided with hydraulic pressure
Power table (18)；Sealing-plug (27) is installed on the inside of the end-plate (7) of high pressure resistant oil-gas pipeline (25) other end connection, it is described
Air compression chamber (3) is set in high pressure resistant oil-gas pipeline (25) between sealing-plug (27) and piston plate (4).
A kind of 2. high pressure resistant oil-gas pipeline hydraulic pressure testing device according to claim 1, it is characterised in that the piston
Bar (19) outer end passes hydraulic pressure test cylinder (16) connection baffle plate (15), the piston rod between baffle plate (15) and hydraulic pressure test cylinder (16)
(19) spring (14) is arranged with, is sealed between the piston rod (19) and hydraulic pressure test cylinder (16) provided with O-ring seal.
A kind of 3. high pressure resistant oil-gas pipeline hydraulic pressure testing device according to claim 2, it is characterised in that the piston
Bar (19) other end is located in high pressure resistant oil-gas pipeline (25) inside through end-plate (7) and ring flange (21).
A kind of 4. high pressure resistant oil-gas pipeline hydraulic pressure testing device according to claim 1, it is characterised in that the piston
Plate (4) edge is provided with sealing ring clip (32), and sealing ring (23), sealing ring (23) and resistance to height are arranged with sealing ring clip (32)
Force feed feed channel (25) offsets.
A kind of 5. high pressure resistant oil-gas pipeline hydraulic pressure testing device according to claim 1, it is characterised in that the piston
High-Pressure Water top pressure room (33), High-Pressure Water top pressure are set in high pressure resistant oil-gas pipeline (25) between plate (4) and stream cover (5)
Room (33) is connected by some uniform flow holes (31) with water under high pressure chamber (17).
A kind of 6. high pressure resistant oil-gas pipeline hydraulic pressure testing device according to claim 1, it is characterised in that the sealing
Laser range finder (2) is installed in the middle part of plug (27), it is anti-to be provided with ranging on the piston plate (4) of laser range finder (2) same axis
Present plate (24).
A kind of 7. high pressure resistant oil-gas pipeline hydraulic pressure testing device according to claim 6, it is characterised in that the sealing
Gas gauge (30) is installed on plug (27), blast pipe (29), blast pipe (29) and air pressure are installed on sealing-plug (27)
Contracting chamber (3) is connected, and exhaust solenoid valve (28) is provided with blast pipe (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711006650.7A CN107860661B (en) | 2017-10-25 | 2017-10-25 | Water pressure testing device for high-pressure-resistant oil and gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711006650.7A CN107860661B (en) | 2017-10-25 | 2017-10-25 | Water pressure testing device for high-pressure-resistant oil and gas pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107860661A true CN107860661A (en) | 2018-03-30 |
| CN107860661B CN107860661B (en) | 2019-12-10 |
Family
ID=61697443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711006650.7A Active CN107860661B (en) | 2017-10-25 | 2017-10-25 | Water pressure testing device for high-pressure-resistant oil and gas pipeline |
Country Status (1)
| Country | Link |
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| CN (1) | CN107860661B (en) |
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| CN108593451A (en) * | 2018-05-30 | 2018-09-28 | 天津赛瑞创享科技有限公司 | A kind of novel pressure-measuring method of hydraulic press |
| CN111426463A (en) * | 2020-04-29 | 2020-07-17 | 金平国能电冶开发有限公司 | Device and method for testing hydraulic pressure resistance of jet needle of impulse turbine |
| CN112697353A (en) * | 2020-12-07 | 2021-04-23 | 陕西广大重型机械有限公司 | Method for detecting weld defects of fan shell |
| CN115628984A (en) * | 2022-09-28 | 2023-01-20 | 中信重工机械股份有限公司 | Pressure test tool and method for narrow closed oil cavity of piston rod with double-layer welding structure |
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| CN108593451A (en) * | 2018-05-30 | 2018-09-28 | 天津赛瑞创享科技有限公司 | A kind of novel pressure-measuring method of hydraulic press |
| CN108593451B (en) * | 2018-05-30 | 2020-10-09 | 天津赛瑞创享科技有限公司 | Novel pressure testing method for hydraulic press |
| CN111426463A (en) * | 2020-04-29 | 2020-07-17 | 金平国能电冶开发有限公司 | Device and method for testing hydraulic pressure resistance of jet needle of impulse turbine |
| CN111426463B (en) * | 2020-04-29 | 2022-05-17 | 金平国能电冶开发有限公司 | Device and method for testing hydraulic pressure resistance of jet needle of impulse turbine |
| CN112697353A (en) * | 2020-12-07 | 2021-04-23 | 陕西广大重型机械有限公司 | Method for detecting weld defects of fan shell |
| CN115628984A (en) * | 2022-09-28 | 2023-01-20 | 中信重工机械股份有限公司 | Pressure test tool and method for narrow closed oil cavity of piston rod with double-layer welding structure |
| CN115628984B (en) * | 2022-09-28 | 2023-09-15 | 中信重工机械股份有限公司 | Pressure testing tool and method for narrow sealed oil cavity of piston rod with double-layer welding structure |
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| CN107860661B (en) | 2019-12-10 |
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Effective date of registration: 20191118 Address after: 224000 No.1, Weisi Road, Yanlong street, Yandu District, Yancheng City, Jiangsu Province (d) Applicant after: Jiangsu Yuheng Engineering Quality Inspection Co., Ltd Address before: 232000 Famous Group of Xiaxi Village, Qingtang Village, Liugang Town, Shouxian County, Huainan City, Anhui Province Applicant before: Li Houbing |
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