CN207488091U - Stent valve Withstand test device - Google Patents
Stent valve Withstand test device Download PDFInfo
- Publication number
- CN207488091U CN207488091U CN201721623311.9U CN201721623311U CN207488091U CN 207488091 U CN207488091 U CN 207488091U CN 201721623311 U CN201721623311 U CN 201721623311U CN 207488091 U CN207488091 U CN 207488091U
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- valve
- test device
- withstand test
- stent
- pipeline
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Abstract
The utility model discloses stent valve Withstand test device, including hydraulic jack, reversal valve, pump, feather valve, the first shut-off valve, the second shut-off valve, safety valve, pressure gauge, pipeline；Two chambers of the hydraulic jack connect reversal valve by pipeline, reversal valve connection pump, feather valve, side lumen road connection valve member of the hydraulic jack with piston rod on pump are set, and the first shut-off valve, pressure gauge, safety valve are set on the pipeline of hydraulic jack connection valve member.The beneficial effects of the utility model：Meet the needs that valve member does the experiment of pressure-resistant seal performance；Securely and reliably, it is simple, convenient, quick, save maintenance cost.
Description
Technical field
The utility model is related to a kind of valve member experimental rig more particularly to a kind of valve Withstand test devices.
Background technology
The valve members such as various hydraulic locks and safety valve, therefore fully-mechanized mining working stent are housed on the stent that fully-mechanized mining working uses
On there are a large amount of maintenance works, for example, the locking rated pressure of hydraulic lock and safety valve open surplus constant-pressure all 35Mpa with
On.And in actually repairing, the specified maximum pressure of the emulsification pump of ground debugging stent is 31.5Mpa, and without other special tune
Equipment is tried, so stent can not do hydraulic lock and safety valve when ground is overhauled the experiment of pressure-resistant seal performance, also can not just be reflected
Determine and judge whether hydraulic lock and safety valve meet intact requirement.In the case where whether impotentia identification valve member is intact, only
It is repaiied entrusting to send outside whole valve members.
Utility model content
The technical problem to be solved by the utility model is to provide the branch that valve member leakproofness is measured in a kind of quick preparation
Frame valve Withstand test device.
The utility model is to solve above-mentioned technical problem by the following technical programs：The utility model includes hydraulic jack
Top, reversal valve, pump, feather valve, the first shut-off valve, the second shut-off valve, safety valve, pressure gauge, pipeline；The hydraulic jack
Two chambers connect reversal valve by pipeline, and reversal valve connection pumps, and feather valve is set on pump, and the hydraulic jack carries piston rod
Side lumen road connection valve member, and hydraulic jack connection valve member pipeline on the first shut-off valve, pressure gauge, safety are set
Valve.
Preferably, the hydraulic jack is piston hydraulic cylinder of single rod, including plunger shaft, rod end chamber.
Preferably, the reversal valve is three position four-way directional control valve.
Preferably, the pump is emulsification pumping plant.
Preferably, the pipeline is high-pressure rubber pipe.
Preferably, the piston diameter of the piston hydraulic cylinder of single rod is 200mm, diameter of piston rod 140mm.
Preferably, the valve member is hydraulic lock, during work, the spool of inlet non return check valve in rod end chamber connection hydraulic lock
Place.
Preferably, the locking rated pressure of hydraulic lock is equal to set pressure for safety valve.
Preferably, the set pressure of the feather valve is 28Mpa.
The utility model has the following advantages compared with prior art：
(1) the utility model cleverly using stent piston hydraulic cylinder of single rod be piston hydraulic cylinder of single rod this
The pressure fluid that emulsification pump exports is pressurized to higher pressure by kind architectural characteristic, is met valve member and is done the examination of pressure-resistant seal performance
The needs tested；
(2) the utility model is safe and reliable, simple, convenient, quick, and the required parts of this experimental rig are exactly
The parts on stent repaiied are not required to individually buy, and all valve members are after the test, moreover it is possible to continue to install and use in stent
On, the expense of purchase of equipment and accessory is saved, and save maintenance of equipment cost.
Description of the drawings
Fig. 1 is the operation principle schematic diagram of the utility model stent valve Withstand test device.
Hydraulic jack 1, reversal valve 2, pump 3, feather valve 4, the first shut-off valve 5, the second shut-off valve 6, safety valve 7, pressure
Table 8, hydraulic lock 9
Specific embodiment
Elaborate below to the embodiment of the utility model, the present embodiment using technical solutions of the utility model before
It puts and is implemented, give detailed embodiment and specific operating process, but the scope of protection of the utility model is unlimited
In following embodiments.
As shown in Figure 1, the present embodiment includes hydraulic jack 1, reversal valve 2, pump 3, feather valve 4, the first shut-off valve 5, the
Two shut-off valves 6, safety valve 7, pressure gauge 8, pipeline；Two chambers of the hydraulic jack 1 connect reversal valve 2 by pipeline, change
To the connection of valve 2 pump 3, feather valve 4 is set on pump 3, the hydraulic jack 1 carries the side lumen road connection valve member of piston rod,
And it is connected in hydraulic jack 1 and the first shut-off valve 5, pressure gauge 8, safety valve 7 is set on the pipeline of valve member.
The hydraulic jack 1 is piston hydraulic cylinder of single rod, including plunger shaft, rod end chamber.The reversal valve 2 is
Three position four-way directional control valve.The pump 3 is emulsification pumping plant.The pipeline is high-pressure rubber pipe.The piston hydraulic cylinder of single rod
Piston diameter is 200mm, diameter of piston rod 140mm.The valve member is hydraulic lock 9, during work, rod end chamber connection hydraulic lock
On 9 at the spool of inlet non return check valve.The locking rated pressure of hydraulic lock 9 is equal to the set pressure of safety valve 7.The feather valve 4
Set pressure be 28Mpa.
Piston hydraulic cylinder of single rod operation principle：As shown in Figure 1, since there is work in piston hydraulic cylinder of single rod only one end
Stopper rod, so the compression area of two chambers of left and right is unequal.When the right plunger shaft input low pressure liquid p1 (28Mpa), piston by
Thrust be transmitted to left side rod end chamber, since the compression area of left side rod end chamber is smaller than right chamber, so left side rod end chamber
Liquid be pressurized output highly pressurised liquid p2 (54.88Mpa can be reached).
By piston both ends equilibrium equation Shi Ke get：
A1 × p1=A2 × p2
π/4D2 × p1=π/4 (D2-d2) × p2
P2/p1=D2/ (D2-d2)
Because piston diameter D is 200mm, diameter of piston rod d is 140mm, so：
P2/p1=2002/ (2002-1402)
P2/p1=1.96
P2=1.96 × p1
P2=1.96 × 28Mpa
P2=54.88Mpa
As the above analysis, the boosting capability of pressurized cylinder is related with piston, diameter of piston rod, and boosting capability reaches as high as
54.88Mpa is entirely capable of meeting the needs that the various valve members on stent do the experiment of pressure-resistant seal performance.
Utility model works process is as follows：Step 1：Access needs the hydraulic lock 9 tested first, opens the first cut-off
Valve 5 closes the second shut-off valve 6, moves reversal valve 2 to left side operating position, the pressure fluid from emulsification pumping plant enters singly to go out
The left chamber of bar piston-type hydraulic cylinder pushes piston to move right, and the liquid of right chamber is extruded and flows back to pump box through reversal valve 2, stretches
The piston rod gone out is retracted, this step is prepared for valve member experiment.
Step 2 makes reversal valve 2 return to intermediate stop position, closes the first shut-off valve 5.Then reversal valve 2 is pulled to the right side
Side operating position, the pressure fluid from emulsification pumping plant enter the right chamber of piston hydraulic cylinder of single rod, and the liquid of left chamber because
The closing of first shut-off valve 5 and the second shut-off valve 6, it is impossible to pump box off-load be flowed back to by the first shut-off valve 5 and reversal valve 2, also not
6 off-load of the second shut-off valve can be passed through.The pressure of the right chamber liquid of piston hydraulic cylinder of single rod in this way, which will soon rise to, unloads
The pressure for the 28Mpa that valve 4 is set up is carried, at this moment piston hydraulic cylinder of single rod just becomes pressurized cylinder, and the liquid of left chamber will be very
Fast supercharging, highly pressurised liquid after supercharged is pressed on 9 one-way check spool of hydraulic lock, if 9 No leakage of hydraulic lock and pressure at this time
Table 8 stablizes the pressure (and locking rated pressure of hydraulic lock 9) for the 35Mpa for being shown in the setting of safety valve 7, then is accredited as hydraulic pressure
It locks 9 pressure-resistant seal performances and meets requirement, opposite valve member is accredited as damage.
Step 3,9 pressure-resistant seal performance of hydraulic lock after the test, should first pull reversal valve 2 and return to intermediate stop position,
Then the second shut-off valve 6 is opened, sheds the pressure in test device systematic, it is next to replace access for 8 pointer back to zero position of pressure gauge
Hydraulic lock to be tested.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (9)
1. stent valve Withstand test device, for identifying valve member sealing performance, which is characterized in that including hydraulic jack, change
To valve, pump, feather valve, the first shut-off valve, the second shut-off valve, safety valve, pressure gauge, pipeline；Two chambers of the hydraulic jack
Reversal valve is connected by pipeline, reversal valve connection pumps, and feather valve is set on pump, and the hydraulic jack carries the one of piston rod
Side chamber pipeline connects valve member, and sets the first shut-off valve, pressure gauge, safety valve on the pipeline of hydraulic jack connection valve member.
2. stent valve Withstand test device according to claim 1, which is characterized in that the hydraulic jack is singly goes out
Bar piston-type hydraulic cylinder, including plunger shaft, rod end chamber.
3. stent valve Withstand test device according to claim 1, which is characterized in that the reversal valve is 3-position 4-way
Reversal valve.
4. stent valve Withstand test device according to claim 1, which is characterized in that the pump is emulsification pumping plant.
5. stent valve Withstand test device according to claim 1, which is characterized in that the pipeline is high-pressure rubber pipe.
6. stent valve Withstand test device according to claim 2, which is characterized in that the list rod piston hydraulic
The piston diameter of cylinder is 200mm, diameter of piston rod 140mm.
7. stent valve Withstand test device according to claim 2, which is characterized in that the valve member be hydraulic lock, work
When making, in rod end chamber connection hydraulic lock at the spool of inlet non return check valve.
8. stent valve Withstand test device according to claim 7, which is characterized in that the locking rated pressure of hydraulic lock
Equal to set pressure for safety valve.
9. stent valve Withstand test device according to claim 1, which is characterized in that the set pressure of the feather valve
For 28Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721623311.9U CN207488091U (en) | 2017-11-28 | 2017-11-28 | Stent valve Withstand test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721623311.9U CN207488091U (en) | 2017-11-28 | 2017-11-28 | Stent valve Withstand test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207488091U true CN207488091U (en) | 2018-06-12 |
Family
ID=62472039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721623311.9U Active CN207488091U (en) | 2017-11-28 | 2017-11-28 | Stent valve Withstand test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207488091U (en) |
-
2017
- 2017-11-28 CN CN201721623311.9U patent/CN207488091U/en active Active
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