CN207662613U - Displaced type deep-sea movable component test device - Google Patents
Displaced type deep-sea movable component test device Download PDFInfo
- Publication number
- CN207662613U CN207662613U CN201721823040.1U CN201721823040U CN207662613U CN 207662613 U CN207662613 U CN 207662613U CN 201721823040 U CN201721823040 U CN 201721823040U CN 207662613 U CN207662613 U CN 207662613U
- Authority
- CN
- China
- Prior art keywords
- pressure
- test device
- piston
- sea
- movable component
- 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.)
- Active
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of displaced type deep-sea movable component test device, is related to a kind of movable component test pressure chamber.Test device includes the first test device (A), the second test device (B), pressurizer (C), control unit, data acquisition device, and pressure nacelle, driving mechanism is respectively set in the first test device (A) and the second test device (B)；Pressurizer, fluid infusion pump the pressure cylinder (1B) that (10) and overflow valve (11) connect the pressure cylinder (1A) and the second test device of liquid case (20) and the first test device by pipeline respectively；Driving mechanism drives the movement of piston；Control unit (19) controls driving mechanism and pressurizer；Data acquisition device (22) acquires the connection turn-off data between dividing in the middle part of the movable component of deep-sea.The utility model is designed using standard cylinder structure, and processing cost is low, high precision machining.
Description
Technical field
The utility model is related to marine oil and gas production technique fields, more particularly to deep-sea movable component test pressure chamber.
Background technology
Petroleum industry gradually develops to ocean, and subsea production system has become the important skill of offshore oil and gas field exploitation
Art, deep-ocean resource exploitation play an important role to science and techniques of defence and the national economic development, the first process of ocean petroleum developing device therefor
Degree is the key factor for determining development.Due to the influence of operating environment, deep sea equipment is for its load performance, corrosion resistance
Energy, sealing performance, performance, service life and maintenance period suffer from higher requirement, it is therefore necessary in the equipment of profession
The failure mechanism of functional studies key feature such as temperature, pressure, switch cycles of equipment and anti-in middle verification life cycle
Maintaining method, it is ensured that the safety and reliability that equipment works under abyssal environment.
The design of pressure chamber has been relatively fixed both at home and abroad at present, column type nacelle is mostly used, according to place and test side
The needs of case, usually have horizontal and two kinds vertical, and manufacturing process has tended to be mature and stable.It, need to when being tested
Component to be tested is put into cabin fixed, subsequent sealed pressure cabin, and starts water filling pressurization.It can pacify inside some large-scale pressure chambers
Mobilizable mechanical arm is filled, for being operated to test system.Pressure vessel is mostly fixed structure with pressure test device,
Can only meet and keep certain pressure in container, but can not make workpiece to be tested specified movement is carried out in container.Example
If the fixed part and movable part of test system need to carry out relative motion in deep ocean work, existing pressure vessel is only
Allow workpiece to be put into container after container is adjusted and set and then pressurize again, is unsatisfactory for the fixed part of test system
With the true operating condition of movable part.If carrying out movable part test using the pressure chamber for being equipped with big machinery arm, not only press
Power nacelle product can increased dramatically, cost also can significantly rise, production and maintenance difficulties can also increase considerably, can not accomplish through
Ji is practical.
Invention content
The purpose of this utility model is to provide a kind of pressure environments that can be simulated under deep sea condition, and can keep certain
Pressure carries out relative movement part in the device of exercise test.
A used technical solution is the utility model in order to achieve the above objectives：A kind of displaced type deep-sea movable component
Test device, including the first test device, the second test device, pressurizer, control unit, data acquisition device, first surveys
Trial assembly is set is respectively set pressure nacelle, driving mechanism with the second test device,
Pressure nacelle, including pressure cylinder, piston, one end sealing of pressure cylinder, the fixed deep-sea activity of sealed end centre setting
The fixed seat of fixed part in component；Moveable piston is inserted by the other end of pressure cylinder and forms sealing with pressure cylinder, living
The mounting-fixing base of movable part in the intermediate setting installation deep-sea movable component of plug；
Pressurizer, including fluid infusion pump, overflow valve, fluid infusion pump and overflow valve connect liquid case and first by pipeline respectively and survey
The pressure cylinder of pressure cylinder and the second test device that trial assembly is set；When the pressure of pressure cylinder is less than in the numberical range set,
Fluid infusion pump fluid infusion pressurization makes the pressure of pressure cylinder be maintained in the numberical range set；It is higher than in the pressure of pressure cylinder and is setting
When the numberical range got well, releasing surplus liquid makes pressure nacelle cabin internal pressure power be maintained at the number set under the control of overflow valve
It is worth in range；
Driving mechanism drives the movement of piston；
Control unit controls driving mechanism and pressurizer, controls driving mechanism and the second test of the first test device
The driving mechanism of device carries out relative motion between the two；
Data acquisition device acquires the connection turn-off data between fixed part, movable part in the movable component of deep-sea.
Further, driving mechanism includes a hydraulic device and pressure regulator valve, and hydraulic device includes hydraulic cylinder, thrust branch
Frame, hydraulic pump, thrust stand are mounted on the tailpiece of the piston rod of hydraulic cylinder, and the other end of thrust stand is mounted on piston, hydraulic pressure
Pump passes through in piping connection to hydraulic cylinder.
Further, trepanning is arranged in the sealed end of the pressure cylinder, and sealing flange, fixed deep-sea activity group are connected in trepanning
The fixed seat of fixed part is arranged in the centre of sealing flange in part.
Further, limiting device is set, and the movable end of limiting device is mounted on thrust stand, the fixation of limiting device
End is located on hydraulic cylinder；The signal wire of limiting device is connected to control unit.
The utility model is shifted by communicating pipe, be ensure that in the course of work by cabin A, B inner carrier counter motion, high pressure water
When hold capacity changes in nacelle pressure stability, move slowly it is steady, controllability is high, convenient for the extraction and analysis of data.
Description of the drawings
Fig. 1 is the schematic diagram of the utility model preferred embodiment；
Fig. 2 is the schematic diagram of the single sided arrangement of the utility model preferred embodiment；
Fig. 3 is the schematic diagram of the single sided arrangement of the utility model preferred embodiment.
It is numbered in figure：1, pressure cylinder；2, sealing flange；3, piston；4, test block A；5, test block B；6, piston thrust branch
Frame；7, hydraulic cylinder；8, hydraulic pump；9, liquid injection port；10, fluid infusion pumps；11, overflow valve；12, leakage fluid dram；13, exhaust outlet；14, close
Seal；15, cable；16, the first pressure regulator valve；17, the second pressure regulator valve；18, limiting device；19, control unit；20, liquid case；21、
Fuel tank；22, data acquisition device；23, holder；24, hydraulic cylinder support base；25, the first unloading valve；26, air inlet；27,
Two unloading valves；28, reversal valve；31, liquid pushing tube.
Specific implementation mode
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail：
As shown in Figure 1, a kind of displaced type deep-sea movable component test device, including the first test device A, the second test dress
B, pressurizer C, control unit, data acquisition device are set, pressure is respectively set in the first test device A and the second test device B
Nacelle, driving mechanism.Device A is identical with the composition of device B.
Pressure nacelle, including pressure cylinder 1, piston 3, one end sealing of pressure cylinder 1, the fixed deep-sea of sealed end centre setting are lived
The fixed seat of fixed part in dynamic component；Moveable piston 3 is inserted into and is formed with pressure cylinder 1 close by the other end of pressure cylinder 1
The mounting-fixing base of movable part in the movable component of deep-sea is installed in envelope, 3 centre setting of piston.Pressure cylinder uses standard cylinder structure
Design, can correspondingly be reequiped, processing cost is low, high precision machining on existing standard piston hydraulic cylinder.If there is component
Damage, corresponding component are also easy to be replaced buying on the market, and this reduces maintenance costs.
Connection structure between the fixed part and movable part of deep-sea movable component to be measured can be socket connection, rotation
Rotatable connection or any structure for carrying out relative motion such as crank rocker, the activity of piston driving test system in test process
Part to the fixed part of fixing end test system move, until test system movable part completely with the fixation of test system
It is partially completed in conjunction with required active strokes, with the demand hold mode or iterative motion of backsight test.It lives at deep-sea to be measured
Dynamic component can be electric connection or hydraulic joint.
Pressurizer, including fluid infusion pump 10, overflow valve 11, fluid infusion pump 10 and overflow valve 11 connect liquid by pipeline 31 respectively
The pressure cylinder 1B of the pressure cylinder 1A and the second test device of case 20 and the first test device；It is less than in the pressure of pressure cylinder and is setting
When the numberical range got well, fluid infusion, which pumps 10 fluid infusion pressurization, makes the pressure of pressure cylinder be maintained in the numberical range set；In pressure
The pressure of cylinder is higher than in the numberical range set, and surplus liquid is released under the control of overflow valve 11 to be made in pressure nacelle cabin
Pressure is maintained in the numberical range set.Fluid infusion pump 10 is two cabin moisturizings by communicating pipe 31 when device starts,
Water filling port is closed after enough.When piston 3 moves downward, B pressure chambers volume reduces, while the piston reverses direction movement of A pressure chambers,
Volume increases.Water is passed to A pressure chambers from B pressure chambers via pipeline 31 at this time.Otherwise similarly, reciprocation cycle is formed.It can be with
Two groups of element under tests are detected simultaneously.
Driving mechanism drives the movement of piston 3.Various ways may be used in driving mechanism, can mechanically drive, such as
Electric motor driven screw drives nut structure, nut to be sleeved on screw rod, and nut is connect with piston by piston thrust holder, and nut is solid
It is scheduled on piston thrust holder, screw rod drives nut to move along screw rod and then moved with piston；Or motor drives nut band
Dynamic screw-rod structure, gear ＆ rack structure, eccentric wheel etc..Can also be fluid pressure type driving, driving mechanism includes a hydraulic device
And pressure regulator valve, the pressure value in hydraulic cylinder is adjusted, realizes the reciprocating motion of piston.In the present embodiment, piston moves row
Journey is 300mm.
Control unit 19 controls driving mechanism and pressurizer, and the driving mechanism and second for controlling the first test device are surveyed
The driving mechanism that trial assembly is set carries out relative motion between the two.In the present embodiment, control unit 19 uses Programmable logical controller
Device (PLC) sets corresponding control pressure numerical value.In one embodiment, as shown in figure 3, control unit 19 is connected to liquid
The control terminal of press pump 8, the control terminal of fluid infusion pump 10, the control terminal of the first pressure regulator valve 16, the control terminal of the second pressure regulator valve 17；Limit
The signal wire of device 18 is connected to control unit 19.
Data acquisition device 22 acquires the connection turn-off data between fixed part, movable part in the movable component of deep-sea.
Data acquisition device 22 uses existing data acquisition device or detection unit, no longer describes herein.
As shown in figure 3, driving mechanism includes a hydraulic device and pressure regulator valve, hydraulic device includes hydraulic cylinder 7, thrust branch
Frame 6, hydraulic pump 8, thrust stand 6 are mounted on the tailpiece of the piston rod of hydraulic cylinder 7, and the other end of thrust stand 6 is mounted on piston 3
On, hydraulic pump 8 passes through in piping connection to hydraulic cylinder 7.Thrust stand 6 and piston 3 are relatively fixed, and can have multiple holders
Substep ensures even piston stress around piston.As shown in figure 3, hydraulic cylinder 7 is single pole single-action piston type hydraulic cylinder, liquid
Pipeline between press pump 8 and hydraulic cylinder 7 is equipped with the first pressure regulator valve 16 and the second pressure regulator valve 17.Hydraulic pump 8, the first pressure regulator valve
16 and second pressure regulator valve 17 connect with fuel tank 21.Hydraulic cylinder 7 is mounted on hydraulic cylinder support base 24.
As shown in Figure 2 and Figure 3, trepanning is arranged in the sealed end of the pressure cylinder 1, and sealing flange 2 is connected in trepanning, fixed deep
The fixed seat of fixed part is arranged in the centre of sealing flange 2 in extra large movable component.
As shown in figure 3, setting limiting device 18, the movable end of limiting device 18 is mounted on thrust stand 6, limiting device
18 fixing end is located on hydraulic cylinder 7；The signal wire of limiting device 18 is connected to control unit 19.In the present embodiment, thrust
Limiting device 18 is installed at the rear of holder 6, is matched with the contact installed on hydraulic cylinder 7, is played control hydraulic cylinder 7 and is worked
Effect.The electric signal that limiting device 18 receives is transmitted to programmable logic controller (PLC) (PLC) 19, programmable logic by conducting wire
Controller (PLC) 19 sends instructions to hydraulic pump 8 and pressure regulator valve 16 to control in hydraulic cylinder 7 after analyzing the signal received
Pressure, to control the movement of piston 3.
As shown in figure 3, the sidewall opening of pressure cylinder 1 installs the first unloading valve 25, the second unloading valve 27, exhaust outlet 13 is installed
On the first unloading valve 25, air inlet 26 is mounted on the second unloading valve 27, and the bottom opening of pressure cylinder 1 installs discharge outlet 12.
First unloading valve 25 is arranged at the bottom of the nearly pressure cylinder of the side wall in pressure cylinder 11, and the second unloading valve 27 is arranged in pressure cylinder 1
The top of the nearly pressure cylinder of side wall 1.The setting of unloading valve, can rapidly will be in pressure cylinder 1 when needing liquid to fill pressure cylinder 1
Gas discharge, can also need empty pressure cylinder 1 in liquid when with discharge outlet 12 cooperation rapidly will be in pressure cylinder 1
Liquid is discharged.Pressure cylinder 1 is mounted on holder 23.
In one embodiment of the utility model, as shown in figure 3, the left side opening setting liquid injection port 9 of pressure cylinder 1 is mended for connecting
Liquid pump 10, pipeline branch connects overflow valve 11, to ensure that the hydraulic pressure inside 1 nacelle of pressure cylinder maintains a simulated environment always
Required pressure value；Fluid infusion pump 10 is connected to water tank 20 with overflow valve 11.Set in the present embodiment pressure value as
15Mpa。
Embodiment as shown in Figure 3, wherein pressure cylinder 1 are the tube-in-tube structure of an end closure, and sealed end trepanning setting is close
Flange 2 is sealed, sealing flange 2 is responsible for the sealing that cylinder body fixes side.The fixed part 4 of test block, is fixed on cylinder body in testing
Bottom fixing end on, there is no relative displacement with cylinder body.The sleeve other end is packaged type piston structure, and the lower part of piston 3 connects
Test block motion parts 5 are connected to, needs to be fixedly connected depending on test with piston 3 or opposing pistons 3 can rotate.This reality
Apply example, the type of attachment of workpiece is plug-in type, and piston driving workpiece is moved to fixing end workpiece in test process, until workpiece is complete
Full grafting.When tooling, upper and lower corresponding piston and sealing flange are needed while being processed, to ensure the concentricity after workpiece installation,
Preferably to realize swapping process.Sealing ring 14 is set on piston 3, and sealing ring 14 connects mounted on piston 3 with 1 casing wall of pressure cylinder
On tactile contact surface.
The movement of piston provides power by outer liquid cylinder pressure, by the adjustment of the thrust of hydraulic cylinder and the hydraulic pump that is connected with
And the work of pressure regulator valve makes workpiece keep hydraulic pressure dynamic equilibrium under the numerical value of 15Mpa inside tooling in swapping process.It is living
Plug thrust stand 6 and piston are relatively fixed, and can have multiple holder substeps to ensure 3 uniform force of piston around piston 3, living
Circular thrust stand 6 is installed at the back of plug 3, and main function is that the thrust-neutral of hydraulic cylinder 7 is distributed to each of piston 3
A direction avoids stress concentration from causing damage or displaced off-centre, the side of thrust stand 6 to reserve cable connection in piston 3
Mouthful, facilitate cable installation and movement；The junction of piston thrust holder 6 and piston 3 can place the equipment such as cable, motor with
Test block motion parts 5 are driven to carry out the movements such as rotation, the deflection of opposing pistons 3 inside pressure chamber.In piston thrust holder 6
Top has hydraulic cylinder 7 to provide thrust to piston thrust holder 6, and what is be connected with hydraulic cylinder 7 is a set of hydraulic device, packet
The first pressure regulator valve 16, hydraulic pump 8, reversal valve 28 etc. are included, hydraulic cylinder 7 is single pole double-acting piston hydraulic cylinder, such as Fig. 1 institutes
Show.As shown in figure 3, hydraulic cylinder 7 is single pole single-action piston type hydraulic cylinder, on the pipeline between hydraulic pump 8 and hydraulic cylinder 7
Equipped with the first pressure regulator valve 16 and the second pressure regulator valve 17.
In whole process, on the contrary, B pressure chamber pistons decline when A pressure chamber pistons rise, B is pressed two groups of piston motion patterns
Liquid flows into A pressure chambers in power cabin；Liquid flows into B pressure by connecting pipe 31 in A pressure chambers when A pressure chamber pistons decline
Cabin, to make A, B pressure chamber internal pressure power be maintained at some numerical value set, the movable part movement of piston driving test system
Motive force be to be provided by hydraulic oil device, and pressure regulator valve is coordinated to be adjusted the pressure value in hydraulic cylinder, realize piston
Reciprocating motion.By this working cycles, the fixed part of two groups of test systems is simulated with regard to can completely, movable part exists
Working environment around when pressure vessel or deep-sea work, and carry out parameter measurement work appropriate.
The utility model is for the sealing, the is pressure-resistant of active connection under deep water, corrosion-resistant and electric parameters testing
Pressurize equipment, shell are designed using standard cylinder structure, and processing cost is low, high precision machining.Top test sample can be with work
The movements such as plug synchronizes or opposing pistons are rotated, deflection, fully simulate normal, the non-normal working situation of various exemplars,
Comprehensive activity detection can be carried out to exemplar, while inside needs space small, avoid and utilize mechanical arm mobile test part
Required large volume, high cost investment, it is difficult to the shortcomings of safeguarding.The components such as nacelle and piston are designed using standard, test maintaining
Readily replaceable parts.In structure design, using cylindrical pressure cabin simulator, inner space is open, convenient for control fortune
The motion process of dynamic structure.Pressure controls stable, variable volume and can arbitrarily be adjusted under the pressure-bearing upper limit, operate letter in cabin
It is single, safe.Using piston-type hydraulic cylinder, by cabin A, B inner carrier counter motion, high pressure water is shifted by communicating pipe, is ensured
When hold capacity changes in the course of work in nacelle pressure stability, move slowly it is steady, controllability is high, convenient for data
Extraction and analysis.Using external control unit outside cooperation reversal valve work, the pressure controling precision of hydraulic cylinder is improved.
Claims (4)
1. a kind of displaced type deep-sea movable component test device, it is characterised in that：Including the first test device (A), the second test
Device (B), pressurizer (C), control unit, data acquisition device, the first test device (A) and the second test device (B) point
It She Zhi not pressure nacelle, driving mechanism；
Pressure nacelle, including pressure cylinder (1), piston (3), one end sealing of pressure cylinder (1), the fixed deep-sea of sealed end centre setting
The fixed seat of fixed part in movable component；Moveable piston (3) is inserted by the other end of pressure cylinder (1) and and pressure cylinder
(1) sealing is formed, the mounting-fixing base of movable part in installation deep-sea movable component is set among piston (3)；
Pressurizer, including fluid infusion pump (10), overflow valve (11), fluid infusion pump (10) are connected by pipeline respectively with overflow valve (11)
The pressure cylinder (1B) of the pressure cylinder (1A) of liquid case (20) and the first test device and the second test device；It is low in the pressure of pressure cylinder
In in the numberical range set, fluid infusion pump (10) fluid infusion pressurization makes the pressure of pressure cylinder be maintained at the numberical range set
It is interior；When the pressure of pressure cylinder is higher than in the numberical range set, releasing surplus liquid makes under the control of overflow valve (11)
Pressure nacelle cabin internal pressure power is maintained in the numberical range set；
Driving mechanism, the movement of driving piston (3)；
Control unit (19) controls driving mechanism and pressurizer, controls driving mechanism and the second test of the first test device
The driving mechanism of device carries out relative motion between the two；
Data acquisition device (22) acquires the connection turn-off data between fixed part, movable part in the movable component of deep-sea.
2. displaced type deep-sea movable component test device according to claim 1, it is characterised in that：Driving mechanism includes one
Hydraulic device and pressure regulator valve, hydraulic device include hydraulic cylinder (7), thrust stand (6), hydraulic pump (8), thrust stand (6) peace
The other end of tailpiece of the piston rod mounted in hydraulic cylinder (7), thrust stand (6) is mounted on piston (3), and hydraulic pump (8) passes through pipe
Road is connected on hydraulic cylinder (7).
3. displaced type deep-sea movable component test device according to claim 1, it is characterised in that：The pressure cylinder (1)
Sealed end trepanning is set, connection sealing flange (2) in trepanning, the fixed seat setting of fixed part in fixed deep-sea movable component
Centre in sealing flange (2).
4. displaced type deep-sea movable component test device according to claim 1, it is characterised in that：Limiting device is set
(18), the movable end of limiting device (18) is mounted on thrust stand (6), and the fixing end of limiting device (18) is located at hydraulic cylinder
(7) on；The signal wire of limiting device (18) is connected to control unit (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721823040.1U CN207662613U (en) | 2017-12-24 | 2017-12-24 | Displaced type deep-sea movable component test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721823040.1U CN207662613U (en) | 2017-12-24 | 2017-12-24 | Displaced type deep-sea movable component test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207662613U true CN207662613U (en) | 2018-07-27 |
Family
ID=62942269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721823040.1U Active CN207662613U (en) | 2017-12-24 | 2017-12-24 | Displaced type deep-sea movable component test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207662613U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659900A (en) * | 2022-04-06 | 2022-06-24 | 中国船舶科学研究中心 | Pressure test device for simulating myriameter deep sea submerging and surfacing process and operation method |
-
2017
- 2017-12-24 CN CN201721823040.1U patent/CN207662613U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659900A (en) * | 2022-04-06 | 2022-06-24 | 中国船舶科学研究中心 | Pressure test device for simulating myriameter deep sea submerging and surfacing process and operation method |
| CN114659900B (en) * | 2022-04-06 | 2023-05-23 | 中国船舶科学研究中心 | Pressure test device for simulating ten-thousand-meter deep sea submerged floating process and operation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109372499B (en) | Geological reservoir radial flow simulation system | |
| CN106644428A (en) | Test method and apparatus for deep sea activity assembly | |
| CN101387598B (en) | Rock porosity real-time test device under action of Chemosmosis and creep coupling | |
| CN109236243B (en) | Three-dimensional comprehensive reservoir hydrate simulation analysis system and analysis method | |
| CN106918531B (en) | Dynamic and static combined loading rock testing machine and testing method for multi-phase coupling | |
| CN206459818U (en) | The test device of deep-sea movable component | |
| CN102900859B (en) | Underwater hydraulic driven type flat plate gate valve | |
| CN105004616B (en) | The many performance test apparatus of low-temperature (low temperature) vessel and test method | |
| CN201273190Y (en) | Triaxial stress multi-pressure-measuring-point core oil reservoir simulation device | |
| CN109557252B (en) | Comprehensive hydrate simulation system | |
| CN103939421B (en) | A kind of method for testing fatigue for hydraulic cylinder and device | |
| CN102426142A (en) | Mechanical experiment system device and experimental method for external pressure deformation of pipe | |
| CN102927269A (en) | Volumetric capacity-variable constant-pressure maintenance device of pressure vessel | |
| CN106593803B (en) | A kind of constant pressure constant speed pump | |
| CN202166572U (en) | Water pressure testing machine for heavy-caliber fiber reinforced plastic pipe | |
| CN207662613U (en) | Displaced type deep-sea movable component test device | |
| CN112049610B (en) | Device and method for testing dynamic change of parameters of various coal beds during seam gas well seam production | |
| CN207036599U (en) | A kind of test device that carbon dioxide replacement shale gas is utilized under multi- scenarios method effect | |
| CN211122331U (en) | Large-scale intelligent pressure-torsion multi-shaft soil power test platform | |
| CN101949754A (en) | Pressurizing test bed for leak hunt of butterfly valve | |
| CN204008102U (en) | Reciprocating liquid spring unit simulation test device | |
| CN112098300A (en) | Full-diameter core radial flow permeability testing device and testing method | |
| LU503715B1 (en) | Triaxial test device for natural gas hydrate-containing sediment | |
| CN106124705B (en) | A kind of biphase gas and liquid flow simulator | |
| RU116235U1 (en) | HYDRAULIC STAND FOR TESTING DEEP WATER OBJECTS |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |