CN108593281A - A kind of Intelligent well underground metal sealing experimental provision - Google Patents
A kind of Intelligent well underground metal sealing experimental provision Download PDFInfo
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- CN108593281A CN108593281A CN201810720693.XA CN201810720693A CN108593281A CN 108593281 A CN108593281 A CN 108593281A CN 201810720693 A CN201810720693 A CN 201810720693A CN 108593281 A CN108593281 A CN 108593281A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
The present invention relates to a kind of Intelligent well underground metal sealing experimental provisions comprising holder and experimental provision pedestal are provided with pressure vessel on experimental provision pedestal；Pressure vessel includes pressure container flange pedestal, and pressure container flange pedestal top is provided with pressure vessel sleeve, and pressure accommodating cavity is formed in pressure vessel sleeve；It is provided with pressure container flange head cover at the top of pressure vessel sleeve；The sealed valve core for being provided with sealed valve body in pressure accommodating cavity and being arranged in sealed valve body；At the top of sealed valve core cradle top is fixed on across external hydraulic cylinder after pressure container flange head cover, hydraulic cylinder；The outside of pressure vessel sleeve is provided with heating mantle；The open type seal groove for installing pressure seal arrangement is provided at the top of pressure container flange head cover；Pressure container flange base top middle position is provided with sealing test device, sealing test device is located at the front end of sealed valve core, and dynamic sealing test is realized by the cooperation of sealed valve core and sealing test device.
Description
Technical field
The present invention relates to a kind of oil gas fields to be drilled well field, close for testing Intelligent well underground machinery especially with regard to one kind
Seal the Intelligent well underground metal sealing experimental provision of tool performance.
Background technology
Downhole flow control valve is the core component of smart well technology, is responsible for smart well and realizes downhole flow adjusting control
Device, reliable sealing performance is the premise of intelligent downhole flow control valve normal work, once seal failure, smart well well
Lower switch well, downhole flow adjusting can not just be completed, and the working environment of especially downhole flow control valve is very severe, subjects
The erosion of underground high temperature, high pressure and abrasive grain and other Korrosionsmediums is to propose pole to the sealing performance of flow control valve
High requirement, traditional nonmetallic sealing have preferable initial sealing performance, but due to underground high temperature and pressure deep-etching and mill
Graininess medium, is easy to aging and damage, it is difficult to meet the requirement with oil/gas well equivalent life, metal sealing has the higher service life,
But it is chiefly used in static seal and end face seal.It is a kind of new trial that radial mechanical seal is used in smart well, in order to ensure intelligence
Energy well underground metal sealing device can be worked normally in underground, simulate the working environment of downhole flow control valve, close to underground
Envelope mode, which carries out experiment test, to be very important.
Invention content
In view of the above-mentioned problems, the object of the present invention is to provide a kind of Intelligent well underground metal sealing experimental provision, it can be right
Apex combustion seal is tested, and can complete the experiment of end face seal.
To achieve the above object, the present invention takes following technical scheme：A kind of Intelligent well underground metal sealing experimental provision,
It is characterized in that：The experimental provision includes holder and the experimental provision pedestal positioned at the holder lower part, the experimental provision bottom
It is provided with pressure vessel on seat；The pressure vessel includes pressure container flange pedestal, pressure vessel sleeve and pressure vessel method
Blue head cover；The pressure container flange pedestal is arranged on the experimental provision pedestal, is located at the pressure container flange pedestal
Top is provided with the pressure vessel sleeve, and pressure accommodating cavity is formed in the pressure vessel sleeve；Hold positioned at the pressure
It is provided with the pressure container flange head cover at the top of device sleeve；It is provided with sealed valve body in the pressure accommodating cavity and sets
Set the sealed valve core in the sealed valve body；Across external liquid after the pressure container flange head cover at the top of the sealed valve core
Cylinder pressure, the hydraulic cylinder are fixed on the cradle top, and the sealed valve core is in the sealing valve under hydraulic cylinder effect
It moves up and down in vivo；The outside of the pressure vessel sleeve is provided with heating mantle；At the top of the pressure container flange head cover
It is provided with the open type seal groove for installing pressure seal arrangement, the pressure vessel method is realized by the pressure seal arrangement
Pressure seal between blue head cover and the sealed valve core；It is provided in the pressure container flange base top middle position
Mounting groove is provided with sealing test device in the mounting groove, and the sealing test device is located at the front end of the sealed valve core,
Dynamic sealing test is realized by the cooperation of the sealed valve core and the sealing test device.
Further, the sealing test device includes seal valve seat, sealing element support base and mechanical seal to be tested test
Part；The seal valve seat bottom is arranged in the mounting groove of the pressure container flange pedestal, and the sealed valve body is located at
The seal valve seat top；Setting is fluted at the top of the seal valve seat, and the sealing of fluted body is provided in the groove
Part support base；The groove internal upper part of the seal valve seat is provided with the mechanical seal test block to be tested, and the sealing
Part support base is located at the mechanical seal test block to be tested lower part；It the sealed valve core end can be close with the machinery to be tested
It seals test block and metal contact occurs, complete sealing.
Further, hole envelope foot shape is provided between the seal valve seat bottom and the pressure container flange pedestal to slide
Ring seal combination.
Further, the seal valve seat and sealed valve core are made of 40CrMnMo and 42CrMo materials.
Further, the pressure seal arrangement includes guide ring, the combination of axle envelope foot shape bearing ring seal, guide sleeve and gland；Position
In being disposed with the guide ring, the axle envelope from the bottom to top in the open type seal groove of the pressure container flange head cover
Foot shape bearing ring seal combines and the guide sleeve, the top of the guide sleeve is provided with the gland, the gland passes through bolt
It is fixed at the top of the pressure container flange head cover.
Further, on the pressure container flange pedestal, one is axially respectively arranged in the sealing test device both sides
Through-hole is axially provided with oil extraction through-hole at pressure container flange base center position；Two via bottoms are set respectively
It is equipped with temperature sensor and pressure sensor；The oil extraction via bottoms are provided with hydraulic oil outlet pipe fitting.
Further, under non-tight state, two via tops are connected to the pressure accommodating cavity, the oil extraction through-hole
Top is connected to the sealed valve body.
Further, it is provided with hydraulic oil inlet pipe fitting on the pressure container flange head cover.
Further, between the pressure container flange pedestal and the pressure vessel sleeve, the pressure vessel sleeve with
It is all bolted to connection between the pressure container flange head cover, and is sealed using octagonal metal ring pads.
Further, it is fixedly connected with the pressure container flange head cover by pin at the top of the sealed valve body.
The invention adopts the above technical scheme, which has the following advantages：The present invention is directed to Intelligent well underground flow control
The actual working environment of valve processed is simulated, and the metal sealing device of primary convective control valve is tested.This experimental provision
The sealing experiment of highest 70MPa pressure can be completed, which can not only carry out apex combustion seal testing but also can be with
Complete the experiment of end face seal.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the pressure seal arrangement structural schematic diagram of the present invention；
Fig. 3 is the sealing test device structural schematic diagram of the present invention；
Fig. 4 is the mechanical seal experimental provision hydraulic circuit diagram of the present invention when in use.
Specific implementation mode
In the description of the present invention, it is to be understood that, the orientation or position of the instructions such as term "upper", "lower" "inner", "outside"
It is to be based on the orientation or positional relationship shown in the drawings to set relationship, is merely for convenience of description of the present invention and simplification of the description, rather than
Indicate or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot
It is interpreted as limitation of the present invention.The present invention is described in detail below with reference to the accompanying drawings and embodiments.
As shown in FIG. 1 to 3, the present invention provides a kind of Intelligent well underground metal sealing experimental provision comprising 1 He of holder
Experimental provision pedestal 2 positioned at 1 lower part of holder is provided with pressure vessel on experimental provision pedestal 2.Pressure vessel includes that pressure is held
Device flange base 3, pressure vessel sleeve 4 and pressure container flange head cover 5；Pressure container flange pedestal 3 is arranged in experimental provision
On pedestal 2,3 top of pressure container flange pedestal is provided with pressure vessel sleeve 4, forms pressure in pressure vessel sleeve 4
Power accommodating cavity 6；4 top of pressure vessel sleeve is provided with pressure container flange head cover 5.The setting in pressure accommodating cavity 6
There are sealed valve body 7 and the sealed valve core being arranged in sealed valve body 78；7 top of sealed valve body passes through pin 9 and pressure vessel
Flange head cover 5 is fixedly connected, and pin 9 can be the positioning that sealed valve body 7 provides circumferencial direction, and 8 top of sealed valve core passes through pressure
External hydraulic cylinder 10 after force container flange head cover 5, hydraulic cylinder 10 are fixed on 1 top of holder；It is sealed under the action of hydraulic cylinder 10
Spool 8 can move up and down in sealed valve body 7.The outside of pressure vessel sleeve 4 is provided with heating mantle 11, can be experiment
Device is heated to simulate the hot environment of underground.It is provided at 5 top of pressure container flange head cover for installing pressure seal dress
The open type seal groove for setting 12 realizes the pressure between pressure container flange head cover 5 and sealed valve core 8 by pressure seal arrangement 12
Sealing.Between pressure container flange pedestal 3 and pressure vessel sleeve 4, in 3 top center position of pressure container flange pedestal
Place is provided with mounting groove, sealing test device 13 is provided in mounting groove, before sealing test device 13 is located at sealed valve core 8
End, in use, realizing dynamic sealing test by the cooperation of sealed valve core 8 and sealing test device 13.
In above-described embodiment, as shown in Fig. 2, pressure seal arrangement 12 is used for sealed hydraulic pressure, prevent hydraulic oil from pressure
It is leaked in gap between force container flange head cover 5 and sealed valve core 8.Pressure seal arrangement 12 includes guide ring 14, axis
Seal foot shape bearing ring seal combination 15, guide sleeve 16 and gland 17.In the open type seal groove at the top of pressure container flange head cover 5 by
Under it is supreme be disposed with guide ring 14, axle envelope foot shape bearing ring seal combination 15 and guide sleeve 16, the top for being located at guide sleeve 16 is arranged
There are gland 17, gland 17 to be bolted on 5 top of pressure container flange head cover.Guide ring 14 is for making up sealed valve core 8
With the gap between pressure container flange head cover 5, axle envelope foot shape bearing ring seal combination 15 is for being sealed valve core 8 and pressure vessel
Dynamic sealing is provided between flange head cover 5, guide sleeve 16 is responsible for axle envelope foot shape bearing ring seal combination 15 and provides axial fixation.Its
In, axle envelope foot shape bearing ring seal combination 15 can also be changed to other high pressure sealings combination as the case may be.Pressure seal fills
Set 12 be sequentially placed into the open type seal groove by 5 top of pressure container flange head cover after experimental provision assembles, and by
Gland 17 and bolt combination are fixed, and pressure seal arrangement 12 can effectively prevent hydraulic oil in experiment from experimental provision
Tip leakage.
In the various embodiments described above, as shown in figure 3, sealing test device 13 includes seal valve seat 18, sealing element support base 19
With mechanical seal test block 20 to be tested.18 bottom of seal valve seat is arranged in the mounting groove of pressure container flange pedestal 3, sealing
Valve body 7 is located at 18 top of seal valve seat, treats test mechanical sealing test part 20 by sealed valve body 7 and plays axial fixed work
With.18 top setting of seal valve seat is fluted, and the sealing element support base 19 of fluted body, sealing element support base 19 are provided in groove
Groove diameter and the diameter of sealed valve core 8 in matching setting；18 groove internal upper part of seal valve seat is provided with machinery to be tested
Sealing test part 20, and sealing element support base 19 is located at 20 lower part of mechanical seal test block to be tested, so as to supporting sealing member branch
Support seat 19；The thickness of mechanical seal test block 20 to be tested and 19 groove side consistency of thickness of sealing element support base.8 end of sealed valve core
Portion can occur metal with mechanical seal test block 20 to be tested and contact, and complete sealing；Sealed valve core 8 is surveyed with mechanical seal to be tested
The contact surface machining accuracy of test specimen 20 is high.Wherein, between seal valve seat 18 and pressure container flange pedestal 3, sealing
It is both provided with sealing ring between valve seat 18 and sealed valve body 7, between seal valve seat 18 and mechanical seal test block 20 to be tested.
In a preferred embodiment, it is also set up between 18 bottom of seal valve seat and pressure container flange pedestal 3
There is hole envelope foot shape bearing ring seal combination 21, prevents hydraulic oil from being leaked from the gap of seal valve seat 18 and flange base 3, foot is sealed in hole
Shape bearing ring seal combination 21 can also be replaced with other high pressure sealings combination as the case may be.
In a preferred embodiment, when need carry out end face seal test when, need to sealing element support base 19 into
Row repacking, butterfly spring is changed to by sealing element support base 19, and it is close that mechanical seal test block 20 to be tested is changed to end face
Sealing.
In a preferred embodiment, the internal diameter size of seal valve seat 18 can be changed close to complete various outer diameter size
The experiment of sealing.Seal valve seat 18 and sealed valve core 8 may be used the materials such as 40CrMnMo and 42CrMo and be made, both materials
After Overheating Treatment, hardness can reach 70HRC or more, other similar materials can also select, it is not limited to cited
Both materials.
In the various embodiments described above, it is located on pressure container flange pedestal 3, is axially set respectively in 13 both sides of sealing test device
It is equipped with a through-hole 22, oil extraction through-hole 23 is axially provided in 3 center position of pressure container flange pedestal.22 bottom of two through hole point
It is not provided with temperature sensor 24 and pressure sensor 25, temperature sensor 24 and pressure sensor 25 can be acquired with external data
System can at any time be monitored the temperature and pressure situation of experimental provision.Under non-tight state, the top of two through hole 22 with
Pressure accommodating cavity 6 is connected to, and 23 top of oil extraction through-hole is connected to sealed valve body 7.23 bottom of oil extraction through-hole is provided with hydraulic oil outlet
Pipe fitting 26.
In the various embodiments described above, hydraulic oil inlet pipe fitting 27 is provided on pressure container flange head cover 5, hydraulic oil passes through
Intake pipeline and hydraulic oil inlet pipe fitting 27 enter pressure accommodating cavity 6.Hydraulic oil passes through hydraulic line and hydraulic oil inlet pipe
Connector 27 is pressed into experimental provision, meanwhile, it opens heating mantle 11 and is heated for experimental provision, by pressure container flange pedestal 3
The temperature sensor 24 and pressure sensor 25 of bottom monitor the temperature and pressure situation of experimental provision in real time, when experimental provision
When temperature and pressure reaches requirement of experiment, hydraulic cylinder 10 is opened, sealed valve core 8 is pushed down on and is pressed into sealing test device 13
In, the hydraulic oil outlet pipe fitting 26 of flange base is opened, if the pressure of experimental provision does not have decline and hydraulic oil outlet at this time
There is no that the leakage of hydraulic oil occurs in pipe fitting 26, then proves that experimental provision sealing is effective.If mechanical seal test block to be tested
20 fail with the sealing of sealed valve core 8, and hydraulic oil can leak, and hydraulic oil outlet pipe fitting is flowed to by oil extraction through-hole 23
26, and at this point, the pressure in experimental provision can also decline, the pressure in experimental provision can be by pressure sensor 25 at any time
It is monitored.
In the various embodiments described above, between pressure container flange pedestal 3 and pressure vessel sleeve 4, pressure vessel sleeve 4 with pressure
It is all bolted to connection between force container flange head cover 5, and is sealed using octagonal metal ring pads 28.
When experiment, sealed valve core 8 is pushed down on and is pressed into sealing test device 13, beaten by 10 top oil inlet of hydraulic cylinder
Open the hydraulic oil outlet pipe fitting 26 of pressure container flange pedestal 3.Heating mantle 11 is begun to warm up, until temperature is set close to experiment
Temperature, then pressurizeed from hydraulic oil inlet pipe fitting 27 into pressure vessel, when temperature and pressure reaches set temperature pressure, stop
It only pressurizes and heats up.Temperature and pressure is kept constant 10 minutes, if the pressure of experimental provision does not decline at this time and hydraulic oil goes out
There is no that the leakage of hydraulic oil occurs in mouth pipe fitting 26, then shows that experimental provision static seal is effective.By testing about 10 fluid cylinder
It is mobile, notice that sealed valve core 8 cannot be disengaged with mechanical seal test block 20 to be tested and contact, test mechanical sealing device is sealing
Sealing performance when spool 8 moves axially.Equally, if hydraulic oil outlet pipe fitting 26 is without leakage while vessel internal pressure
Power remains unchanged, then shows that experimental provision dynamic sealing is effective.
In conclusion in the use of the present invention, as shown in figure 4, entire hydraulic line is real respectively mainly by two circuits
Experiment device hydraulic circuit and cylinder hydraulic circuit, two hydraulic pressure routes share the same hydraulic oil container 29, but are respectively adopted two
A hydraulic pump：Low pressure fuel pump 30 and high-pressure oil pump 31 can be respectively controlled two hydraulic pressure routes, not interfere with each other.Experiment
Electromagnetic relief valve 32 is used in device hydraulic circuit, can carry out far distance controlled to hydraulic circuit, this is because experiment dress
The experimental pressure set is very big, to avoid unnecessary casualties, staff must be far from experimental stand.It is high pressure oil first
Hydraulic oil is pressed into experimental provision by pump 31, and frequency converter 33 can control the rotating speed of the motor 34 of driving high-pressure oil pump 31 and then control
The flow of hydraulic oil processed, programmable controller 35 can be with three on far distance controlled electromagnetic relief valve 32 and cylinder hydraulic circuit
Position four-way electromagnetic reversing valve 36, heating mantle 11 can be that experimental provision heats, and pressure sensor 25 and temperature sensor 24 are external
Display 37 can monitor the pressure and temperature of experimental provision in real time, when the temperature and pressure situation of experimental provision reaches experiment
It is required that when, three-position four-way electromagnetic directional valve 36 is opened to right position, and hydraulic cylinder 10 pushes spool to move down and start to seal, open position
Needle valve 38 in the oil outlet pipe of experimental provision bottom, if the pressure of experimental provision does not decline and experimental provision exit does not have
There is hydraulic fluid leak, then proves that sealing is effective.
The various embodiments described above are merely to illustrate the present invention, and structure and size, installation position and the shape of each component are all can be with
It is varied from, based on the technical solution of the present invention, all improvement that individual part is carried out according to the principle of the invention and waits
With transformation, should not exclude except protection scope of the present invention.
Claims (10)
1. a kind of Intelligent well underground metal sealing experimental provision, it is characterised in that：The experimental provision includes holder and is located at described
The experimental provision pedestal of holder lower part is provided with pressure vessel on the experimental provision pedestal；The pressure vessel includes pressure
Vessel flange pedestal, pressure vessel sleeve and pressure container flange head cover；The pressure container flange pedestal is arranged in the reality
On experiment device pedestal, pressure container flange pedestal top is provided with the pressure vessel sleeve, holds in the pressure
Pressure accommodating cavity is formed in device sleeve；It is provided with the pressure container flange head cover at the top of the pressure vessel sleeve；Position
In the sealed valve core for being provided with sealed valve body in the pressure accommodating cavity and being arranged in the sealed valve body；The sealing valve
Across external hydraulic cylinder after the pressure container flange head cover at the top of core, the hydraulic cylinder is fixed on the cradle top, in institute
The sealed valve core under hydraulic cylinder effect is stated to move up and down in the sealed valve body；It is set in the outside of the pressure vessel sleeve
It is equipped with heating mantle；The open type seal groove for installing pressure seal arrangement is provided at the top of the pressure container flange head cover,
The pressure seal between the pressure container flange head cover and the sealed valve core is realized by the pressure seal arrangement；Institute
It states pressure container flange base top middle position and is provided with mounting groove, sealing test device is provided in the mounting groove,
The sealing test device is located at the front end of the sealed valve core, passes through matching for the sealed valve core and the sealing test device
It closes and realizes dynamic sealing test.
2. experimental provision as described in claim 1, it is characterised in that：The sealing test device includes seal valve seat, sealing element
Support base and mechanical seal test block to be tested；The seal valve seat bottom is arranged described in the pressure container flange pedestal
In mounting groove, the sealed valve body is located at the seal valve seat top；Fluted, the groove is set at the top of the seal valve seat
Inside it is provided with the sealing element support base of fluted body；The groove internal upper part of the seal valve seat is provided with the test-run a machine to be measured
Tool sealing test part, and the sealing element support base is located at the mechanical seal test block to be tested lower part；The sealed valve core
End can occur metal with the mechanical seal test block to be tested and contact, and complete sealing.
3. experimental provision as claimed in claim 2, it is characterised in that：Positioned at the seal valve seat bottom and the pressure vessel method
Hole envelope foot shape bearing ring seal combination is provided between blue pedestal.
4. experimental provision as claimed in claim 2, it is characterised in that：The seal valve seat and sealed valve core using 40CrMnMo and
42CrMo materials are made.
5. the experimental provision as described in any one of Claims 1-4, it is characterised in that：The pressure seal arrangement include guide ring,
The combination of axle envelope foot shape bearing ring seal, guide sleeve and gland；In the open type seal groove of the pressure container flange head cover by
Under it is supreme be disposed with the guide ring, axle envelope foot shape bearing ring seal combination and the guide sleeve, be located at the guide sleeve
Top is provided with the gland, and the gland is bolted at the top of the pressure container flange head cover.
6. the experimental provision as described in any one of Claims 1-4, it is characterised in that：On the pressure container flange pedestal, in institute
It states sealing test device both sides and is axially respectively arranged with a through-hole, axially set at pressure container flange base center position
It is equipped with oil extraction through-hole；Two via bottoms are respectively arranged with temperature sensor and pressure sensor；The oil extraction via bottoms
It is provided with hydraulic oil outlet pipe fitting.
7. experimental provision as claimed in claim 6, it is characterised in that：Under non-tight state, two via tops with it is described
Pressure accommodating cavity is connected to, and the oil extraction via top is connected to the sealed valve body.
8. the experimental provision as described in any one of Claims 1-4, it is characterised in that：It is arranged on the pressure container flange head cover
There is hydraulic oil inlet pipe fitting.
9. the experimental provision as described in any one of Claims 1-4, it is characterised in that：The pressure container flange pedestal with it is described
Between pressure vessel sleeve, between the pressure vessel sleeve and the pressure container flange head cover be all the company of being bolted
It connects, and is sealed using octagonal metal ring pads.
10. the experimental provision as described in any one of Claims 1-4, it is characterised in that：At the top of the sealed valve body by pin with
The pressure container flange head cover is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810720693.XA CN108593281B (en) | 2018-07-03 | 2018-07-03 | A kind of Intelligent well underground metal sealing experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810720693.XA CN108593281B (en) | 2018-07-03 | 2018-07-03 | A kind of Intelligent well underground metal sealing experimental provision |
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| Publication Number | Publication Date |
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| CN108593281A true CN108593281A (en) | 2018-09-28 |
| CN108593281B CN108593281B (en) | 2019-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810720693.XA Active CN108593281B (en) | 2018-07-03 | 2018-07-03 | A kind of Intelligent well underground metal sealing experimental provision |
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Cited By (2)
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| CN111562068A (en) * | 2020-04-03 | 2020-08-21 | 新昌县泰思特科技有限公司 | Pressure alternation test structure |
| CN113588257A (en) * | 2021-06-17 | 2021-11-02 | 南方电网科学研究院有限责任公司 | Aging test device and aging test method for O-shaped sealing ring |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113588257A (en) * | 2021-06-17 | 2021-11-02 | 南方电网科学研究院有限责任公司 | Aging test device and aging test method for O-shaped sealing ring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108593281B (en) | 2019-11-19 |
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