CN107941425A - A kind of bulge test device and application method applied to middle smaller diameter valve - Google Patents
A kind of bulge test device and application method applied to middle smaller diameter valve Download PDFInfo
- Publication number
- CN107941425A CN107941425A CN201711351109.XA CN201711351109A CN107941425A CN 107941425 A CN107941425 A CN 107941425A CN 201711351109 A CN201711351109 A CN 201711351109A CN 107941425 A CN107941425 A CN 107941425A
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- Prior art keywords
- fixed plate
- valve
- flange
- stent
- pump
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Classifications
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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
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
Abstract
The present invention relates to a kind of bulge test device and application method applied to middle smaller diameter valve, distinguish fixing bracket pair fixed plate in fixed frame upper end, the main fixed plate of stent, tool palette, stent pair fixed plate and the main fixed plate of stent are fixed together by several support rods, main fixed plate connecting flange is fixed in the main fixed plate of stent, the fixed joint fixed plate connecting flange in stent pair fixed plate, single-action hydraulic cylinder one end links together through stent pair fixed plate and secondary fixed plate connecting flange, the valve rod of single-action hydraulic cylinder and thrust flanged joint, pump installing plate is fixed in stent pair fixed plate manually, hydraulic hand-pump is fixed on manually on pump installing plate, hydraulic hand-pump is connected by hydraulic tube with single-action hydraulic cylinder；Present apparatus integrated model rigidity is big, improves and suppresses efficiency.The scope of valve can be tested by extending, and testing efficiency is high.In short, the present apparatus is simple in structure, and it is cheap, it is easy for operation.
Description
Technical field
The present invention relates to a kind of bulge test device and application method applied to middle smaller diameter valve, for valve leak
The detection of amount.
Technical background
Commercially most commonly used at present is saddle bridge-type bulge test device.The structure of the experimental rig is strong
Degree is determined by the rigidity of the U-shaped body of testing stand.Due to design defect, which has no brace type structure in testing stand upper end, when
When testing the valve body of high pressure grade, this kind of saddle bridge-type bulge test platform there is under the conditions of high pressure device it is firm
The situation of deficiency is spent, testing stand body easily deforms, and be easy to cause unbalance stress at valve seal in this case, easily
Cause to reveal between testing stand sealing surface and valve flange, influence test effect, pressure disc failure, pressure occur under extreme condition
Situations such as power rapid drawdown, the generation to cause the accident.
Meanwhile main fixed plate connecting flange and the U-shaped body of testing stand are separate structure, in tested valve bulge test
During, hand need to be carried out with main fixed plate connecting flange and thrust flange three to tested two flange faces of valve by operating personnel
Dynamic docking operation, mode is relatively complicated and the bad grasp of axial alignment precision of three, and time-consuming and laborious, testing efficiency is not high.
Valve body sealing force of two sealing surfaces in testing stand derives from the driving handwheel outside operation console.Drive handwheel with
It is attached between workbench by T-shaped screw thread, driving force size to the force of periphery applied on handwheel completely by driving T-shaped screw thread
Obtain.Under long-time high intensity trystate, manual operation physical demands is larger.
In addition, two sealing flanges that original testing stand is connected with tested valve flanges, can only test one or two kind of specification
Valve, for the valve bulge test beyond specification, need to re-replace two sealing flanges of dimension, testing stand suppresses examination
That tests is of single specification.
The content of the invention
In view of problem existing in the prior art, the present invention provides a kind of bulge test dress applied to middle smaller diameter valve
Put and valve bulge test method.This bulge test device proposes a kind of new testing stand mechanism, that is, changes original saddle
Bridge type mechanism, using the structure type of pull rod, integrated model rigidity is big, avoids malformation, reduces the general of leakage appearance
Rate, increases the safety coefficient of experimental rig.
Main fixed plate connecting flange and thrust flange are integral structure with stent pair fixed plate and the main fixed plate of stent, protect
The precision with tested valve three centering has been demonstrate,proved, has avoided the problem of centering difficulty is larger existing for original testing stand.
Original testing stand need to be used manual drive handwheel to drive T-shaped screw thread to provide valve flange face sealing force by this testing stand
The mode sealed, is changed to promote hydraulic cylinder piston rod to provide thrust sealing using hydraulic hand-pump driving single-action hydraulic cylinder
Mode, reduce the physical consumption of tester so that tested sealing between valve and testing stand sealing flange more may be used
Lean on.
The present invention is to achieve the above object.Used technical solution is：A kind of suppressing applied to middle smaller diameter valve
Experimental rig, including hydraulic hand-pump and single-action hydraulic cylinder, it is characterised in that：Further include fixed frame, stent pair fixed plate, branch
The main fixed plate of frame, support rod, secondary fixed plate connecting flange, thrust flange, main fixed plate connecting flange, pump manually installing plate,
Tool palette；
Described main fixed plate connecting flange one end is big disk, and the other end is roundel, and it is recessed that a few are equipped with the face of big disk
Groove I, is equipped with air inlet inlet opening at the center of great circle card, and the pressure release communicated with air inlet inlet opening is equipped with great circle disc side
Hole；
Thrust flange one end is big disk, and the other end is roundel, a few groove IIs is equipped with the face of big disk, in big disk
The relief hole II communicated with big disk lateral aperture is equipped with the center in face, tapped blind hole is equipped with roundlet disk center；
One piece of stent pair fixed plate and one piece of main fixed plate of stent, stent pair fixed plate and branch are fixed in the fixed frame upper end respectively
The main fixed plate of frame is fixed together by several support rods, and main fixed plate connecting flange is fixed in the main fixed plate of stent,
Fixed joint fixed plate connecting flange in stent pair fixed plate, described single-action hydraulic cylinder one end are consolidated through stent pair fixed plate with pair
Fixed board connecting flange links together, and the valve rod of single-action hydraulic cylinder stretches out outside secondary fixed plate connecting flange and thrust force method tritonope hole
Link together, thrust flange is corresponding with main fixed plate connecting flange, and the tool palette is fixed on single-action hydraulic cylinder lower end
Fixed frame on, it is described manually pump installing plate be fixed in the stent pair fixed plate of single-action hydraulic cylinder upper end, the manual liquid
Press pump is fixed on manually on pump installing plate, and hydraulic hand-pump is connected by hydraulic tube with single-action hydraulic cylinder；
The expanding-contracting action of single-action hydraulic cylinder valve rod, it can be achieved that between adjustment thrust flange and main fixed plate connecting flange away from
From.
The application method of a kind of bulge test device applied to middle smaller diameter valve, it is characterised in that step is as follows：
The O-ring seal that the diameter of the first step, first selection and tested valve both ends flange port matches, O-shaped close by two
Seal be separately mounted in the corresponding groove II of thrust flange and the main corresponding groove I of fixed plate connecting flange in, by tested valve
Door is placed between stent pair fixed plate and the main fixed plate of stent, pressing hydraulic hand-pump handle, the hydraulic pressure in hydraulic hand-pump
Oil is depressed into single-action hydraulic cylinder by hydraulic tube, promotes the thrust flange that is connected with single-action hydraulic cylinder valve rod to tested valve
Door is mobile, and tested valve is pressed between thrust flange and main fixed plate connecting flange, the O-ring seal on thrust flange and
O-ring seal on main fixed plate connecting flange seals up the flange port at tested valve both ends；
A ball valve is installed respectively in the relief hole I of main fixed plate connecting flange and the relief hole II of thrust flange, in thrust
A pipe is connected on the ball valve of flange；
Second step, it is as follows to be tested valve step using gas test：
The tracheae of air pump is connected with the air inlet inlet opening of main fixed plate connecting flange, close respectively main fixed plate connecting flange and
The ball valve of thrust flange, is opening tested valve, booster air pump, opens the ball valve on air pump tracheae delivery outlet, to tested valve
Interior pressurization, observing around tested valve flanges has No leakage；
There is No leakage around such as tested valve flanges, turn off tested valve, then open the ball valve of thrust flange, by thrust
The pipe connected on flanged ball valve is put into sink, is calculated number of bubbles and is understood whether tested valve door leakage rate is qualified；
3rd step, closes the ball valve on air pump tracheae delivery outlet, opens the ball valve of main fixed plate connecting flange, air pressure is excluded,
Complete the leak detection of tested valve；
4th step, it is as follows to test tested valve step using water：
The water pipe of high-pressure hydraulic pump is connected with the air inlet inlet opening of main fixed plate connecting flange, closes main fixed plate connection method respectively
Blue and thrust flange ball valve, is opening tested valve, is starting high-pressure hydraulic pump, open the ball on high-pressure hydraulic pump water pipe delivery outlet
Valve, water is added into tested valve, and observing around tested valve flanges has No leakage；
There is No leakage around such as tested valve flanges, turn off tested valve, then open the ball valve of thrust flange, by thrust
The pipe connected on flanged ball valve is put into the water for gathering and leaking out in measuring cup, and observation measuring cup scale understands whether leakage rate is qualified；
5th step, closes the ball valve on high-pressure hydraulic pump water pipe delivery outlet, the ball valve of main fixed plate connecting flange is opened, by water pressure discharge
Remove, complete the leak detection of tested valve.
The beneficial effects of the invention are as follows：This bulge test device uses the structure type of pull rod, and integrated model rigidity is big, adopts
The design defect of original structure can thoroughly be prevented in this way, avoid malformation, the probability that leakage occurs is reduced, improve
The safety coefficient of experimental rig.
Main fixed plate connecting flange and thrust flange are integral structure with stent pair fixed plate and the main fixed plate of stent, really
The concentricity of main fixed plate connecting flange and thrust flange has been protected, the precision with tested valve three centering has been ensure that, avoids
The problem of centering difficulty is larger existing for original testing stand.
Original testing stand need to be used manual drive handwheel to drive T-shaped screw thread to provide valve flange face sealing force by this testing stand
The mode sealed, is changed to promote hydraulic cylinder piston rod to provide thrust sealing using hydraulic hand-pump driving single-action hydraulic cylinder
Mode, reduce the physical consumption of tester, simultaneously because the power output that hydraulic cylinder provides is far longer than handwheel offer
Power so that tested sealing between valve and testing stand sealing flange is relatively reliable, using single-action hydraulic cylinder, is suppressed in valve
After the completion of can voluntarily return, improve and suppress efficiency.
The structure of the main fixed plate connecting flange of the present apparatus and a few obverse grooves of thrust flange, is for tested valve
The different-diameter size design of two end flange mouths, the sealing flange compared to each specification of original testing stand can only test one or two kind
Specification valve, the present apparatus can install various sizes of O-ring seal and the diameter of tested valve both ends flange port matches, can be complete
Into the detection of various sizes of valve, the scope that can test valve, testing efficiency higher are extended.
In short, the present apparatus is simple in structure, and it is cheap, it is easy for operation, due to using dismountable modularized design
Thinking, whole testing stand maintenance cost are relatively low.
Brief description of the drawings
Fig. 1 is the stereogram of an angle of the invention；
Fig. 2 is the stereogram of another angle of the invention；
Fig. 3 is showing of being connected of single-action hydraulic cylinder of the present invention, stent pair fixed plate, pair fixed plate connecting flange, thrust flange
It is intended to；
Fig. 4 is the sectional view of Fig. 3；
Fig. 5 is the sectional view that the main fixed plate of stent of the present invention is connected with main fixed plate connecting flange；
Fig. 6 is the usage state diagram of an angle of the invention；
Fig. 7 is the usage state diagram of another angle of the invention.
Embodiment
As shown in Figures 1 to 5, a kind of bulge test device applied to middle smaller diameter valve, including hydraulic hand-pump 10
With single-action hydraulic cylinder 11, fixed frame 1, stent pair fixed plate 2, the main fixed plate 3 of stent, support rod 4, secondary fixed plate are further included
Connecting flange 5, thrust flange 6, manually main fixed plate connecting flange 7, pump installing plate 8, tool palette 9.
Main 7 one end of fixed plate connecting flange is big disk, and the other end is roundel, and it is recessed that a few are equipped with the face of big disk
I 7-1 of groove, is equipped with air inlet inlet opening 7-2 at the center of great circle card, is equipped with and air inlet inlet opening 7-2 phases in great circle disc side
Logical I 7-3 of relief hole.
6 one end of thrust flange is big disk, and the other end is roundel, a few groove IIs 6-1 is equipped with the face of big disk,
II 6-2 of relief hole communicated with big disk lateral aperture is equipped with the center of great circle card, is equipped with roundlet disk center in band
The blind hole 6-3 of screw thread.
Fix one piece of stent pair fixed plate 2 and the main fixed plate 3 of one piece of stent respectively in 1 upper end of fixed frame, stent is secondary fixed
Plate 2 and the main fixed plate 3 of stent are fixed together by several support rods 4 forms a rigid frame, main fixed plate connection method
Orchid 7 is screwed in main 3 inner face of fixed plate of stent, and it is secondary solid that secondary fixed plate connecting flange 5 is screwed in stent
2 inner face of fixed board, one end of single-action hydraulic cylinder 11 are screwed onto through the hole of stent pair fixed plate 2 and secondary fixed plate connecting flange 5
Together, the valve rod 11-1 of single-action hydraulic cylinder is stretched out outside secondary 5 hole of fixed plate connecting flange and is screwed onto with 6 blind hole 6-3 of thrust flange
Together, thrust flange 6 is oppositely arranged composition clamping device with main fixed plate connecting flange 7, and tool palette 9 is fixed on single-acting liquid
On the fixed frame 1 of 11 lower end of cylinder pressure, manual pump installing plate 8 is screwed in the stent pair of 11 upper end of single-action hydraulic cylinder
In fixed plate 2, hydraulic hand-pump 10 is fixed on manually on pump installing plate 8, and hydraulic hand-pump 10 passes through hydraulic tube and single-acting liquid
Cylinder pressure 11 connects, and the expanding-contracting action of 11 valve rod 11-1 of single-action hydraulic cylinder is, it can be achieved that adjustment thrust flange 6 is connected with main fixed plate
The distance between flange 7.
10 model SYB-2 of hydraulic hand-pump；11 model LL63/200 of single-action hydraulic cylinder.
A kind of application method of bulge test device applied to middle smaller diameter valve, step are as follows：
The O-ring seal that the diameter of the first step, first selection and tested 12 liang of end flange mouths of valve matches, O-shaped by two
Sealing ring is separately mounted in the corresponding groove II 6-1 of thrust flange 6 and the corresponding groove I 7-1 of main fixed plate connecting flange 7
In, tested valve 12 is placed between stent pair fixed plate 2 and the main fixed plate 3 of stent, presses 10 handle of hydraulic hand-pump, hand
Hydraulic oil in hydrodynamic press pump 10 is depressed into single-action hydraulic cylinder 11 by hydraulic tube, is promoted and 11 valve rod of single-action hydraulic cylinder
The thrust flange 6 of 11-1 connections is moved to tested valve 12, and tested valve 12 is pressed on thrust flange 6 connects with main fixed plate
Between flange 7, the O-ring seal in O-ring seal and main fixed plate connecting flange 7 on thrust flange 6 is by tested valve 12
The flange port at both ends seals up；
A ball is installed respectively in I 7-3 of relief hole of main fixed plate connecting flange 7 and II 6-2 of relief hole of thrust flange 6
Valve, connects a pipe on the ball valve of thrust flange 6.
Second step, it is as follows to be tested 12 step of valve using gas test：
The tracheae of air pump is connected with the air inlet inlet opening 7-2 of main fixed plate connecting flange 7, closes main fixed plate connection method respectively
Orchid 7 and the ball valve of thrust flange 6, are opening tested valve 12, and booster air pump, opens the ball valve on air pump tracheae delivery outlet, to
Pressurization in tested valve 12, observing around 12 flange of tested valve has No leakage；
Such as there is No leakage around 12 flange of tested valve, turn off tested valve 12, then open the ball valve of thrust flange 6,
The pipe connected on 6 ball valve of thrust flange is put into sink, number of bubbles is calculated and understands whether 12 leakage rate of tested valve door closes
Lattice.
3rd step, closes the ball valve on air pump tracheae delivery outlet, the ball valve of main fixed plate connecting flange 7 is opened, by air pressure
Exclude, complete the leak detection of tested valve 12.
4th step, it is as follows to test 12 step of tested valve using water：
The water pipe of high-pressure hydraulic pump is connected with the air inlet inlet opening 7-2 of main fixed plate connecting flange 7, main fixed plate is closed respectively and connects
The ball valve of acting flange 7 and thrust flange 6, is opening tested valve 12, is starting high-pressure hydraulic pump, open high-pressure hydraulic pump water pipe delivery outlet
On ball valve, into tested valve 12 plus water, observing around 12 flange of tested valve has No leakage；
Such as there is No leakage around 12 flange of tested valve, turn off tested valve 12, then open the ball valve of thrust flange 6,
The pipe connected on 6 ball valve of thrust flange is put into the water for gathering and leaking out in measuring cup, observation measuring cup scale understands that leakage rate is
No qualification.
5th step, closes the ball valve on high-pressure hydraulic pump water pipe delivery outlet, opens the ball valve of main fixed plate connecting flange 7, will
Water pressure discharge removes, and completes the leak detection of tested valve 12.
Claims (2)
1. a kind of bulge test device applied to middle smaller diameter valve, including hydraulic hand-pump（10）And single-action hydraulic cylinder
（11）, it is characterised in that：Further include fixed frame（1）, stent pair fixed plate（2）, the main fixed plate of stent（3）, support rod（4）、
Secondary fixed plate connecting flange（5）, thrust flange（6）, main fixed plate connecting flange（7）, pump installing plate manually（8）, tool palette
（9）；
The main fixed plate connecting flange（7）One end is big disk, and the other end is roundel, a few are equipped with the face of big disk
Groove I（7-1）, air inlet inlet opening is equipped with the center of great circle card（7-2）, it is equipped with and air inlet inlet opening in great circle disc side
（7-2）The relief hole communicated（7-3）；
Thrust flange（6）One end is big disk, and the other end is roundel, a few groove IIs are equipped with the face of big disk（6-1）,
The relief hole II communicated with big disk lateral aperture is equipped with the center of great circle card（6-2）, band is equipped with roundlet disk center
The blind hole of internal thread（6-3）；
The fixed frame（1）One piece of stent pair fixed plate is fixed in upper end respectively（2）With one piece of main fixed plate of stent（3）, stent pair
Fixed plate（2）With the main fixed plate of stent（3）Pass through several support rods（4）It is fixed together, in the main fixed plate of stent（3）It is upper solid
Fixed main fixed plate connecting flange（7）, in stent pair fixed plate（2）Upper fixed joint fixed plate connecting flange（5）, the single-acting liquid
Cylinder pressure（11）One end passes through stent pair fixed plate（2）With secondary fixed plate connecting flange（5）Link together, single-action hydraulic cylinder
Valve rod（11-1）Stretch out secondary fixed plate connecting flange（5）Outside with thrust flange（6）Blind hole（6-3）Link together, thrust flange
（6）With main fixed plate connecting flange（7）It is corresponding, the tool palette（9）It is fixed on single-action hydraulic cylinder（11）The fixation of lower end
Frame（1）On, the pump installing plate manually（8）It is fixed on single-action hydraulic cylinder（11）The stent pair fixed plate of upper end（2）On, it is described
Hydraulic hand-pump（10）It is fixed on pump installing plate manually（8）On, hydraulic hand-pump（10）Pass through hydraulic tube and single-action hydraulic cylinder
（11）Connection；
Single-action hydraulic cylinder（11）Valve rod（11-1）Expanding-contracting action, it can be achieved that adjustment thrust flange（6）It is connected with main fixed plate
Flange（7）The distance between.
2. a kind of application method of bulge test device applied to middle smaller diameter valve using described in claim 1, it is special
Sign is that step is as follows：
The first step, first selection and tested valve（12）The O-ring seal that the diameter of two end flange mouths matches, by two O
Type sealing ring is separately mounted to thrust flange（6）Corresponding groove II（6-1）Neutralize main fixed plate connecting flange（7）It is corresponding recessed
Groove I（7-1）In, by tested valve（12）It is placed on stent pair fixed plate（2）With the main fixed plate of stent（3）Between, pressing is manual
Hydraulic pump（10）Handle, hydraulic hand-pump（10）In hydraulic oil single-action hydraulic cylinder is depressed into by hydraulic tube（11）In, push away
Dynamic and single-action hydraulic cylinder（11）Valve rod（11-1）The thrust flange of connection（6）To tested valve（12）It is mobile, by tested valve
（12）It is pressed on thrust flange（6）With main fixed plate connecting flange（7）Between, thrust flange（6）On O-ring seal and main solid
Fixed board connecting flange（7）On O-ring seal by tested valve（12）The flange port at both ends seals up；
In main fixed plate connecting flange（7）Relief hole I（7-3）With thrust flange（6）Relief hole II（6-2）It is middle to install respectively
One ball valve, in thrust flange（6）Ball valve on connection one pipe；
Second step, valve is tested using gas test（12）Step is as follows：
By the tracheae of air pump and main fixed plate connecting flange（7）Air inlet inlet opening（7-2）Connection, closes main fixed plate and connects respectively
Acting flange（7）With thrust flange（6）Ball valve, opening tested valve（12）, booster air pump, is opened on air pump tracheae delivery outlet
Ball valve, to tested valve（12）Interior pressurization, observes tested valve（12）There is No leakage around flange；
Such as tested valve（12）There is No leakage around flange, turn off tested valve（12）, then open thrust flange（6）'s
Ball valve, by thrust flange（6）The pipe connected on ball valve is put into sink, is calculated number of bubbles and is understood tested valve door（12）Leakage
Whether amount is qualified；
3rd step, closes the ball valve on air pump tracheae delivery outlet, opens main fixed plate connecting flange（7）Ball valve, air pressure is arranged
Remove, complete tested valve（12）Leak detection；
4th step, tested valve is tested using water（12）Step is as follows：
By the water pipe of high-pressure hydraulic pump and main fixed plate connecting flange（7）Air inlet inlet opening（7-2）Connection, closes main fixation respectively
Plate connecting flange（7）With thrust flange（6）Ball valve, opening tested valve（12）, start high-pressure hydraulic pump, open high-pressure hydraulic pump
Ball valve on water pipe delivery outlet, to tested valve（12）Interior plus water, observes tested valve（12）There is No leakage around flange；
Such as tested valve（12）There is No leakage around flange, turn off tested valve（12）, then open thrust flange（6）'s
Ball valve, by thrust flange（6）The pipe connected on ball valve is put into the water for gathering and leaking out in measuring cup, and observation measuring cup scale understands to let out
Whether leakage quantity is qualified；
5th step, closes the ball valve on high-pressure hydraulic pump water pipe delivery outlet, opens main fixed plate connecting flange（7）Ball valve, by water
Pressure removes, and completes tested valve（12）Leak detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711351109.XA CN107941425A (en) | 2017-12-15 | 2017-12-15 | A kind of bulge test device and application method applied to middle smaller diameter valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711351109.XA CN107941425A (en) | 2017-12-15 | 2017-12-15 | A kind of bulge test device and application method applied to middle smaller diameter valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107941425A true CN107941425A (en) | 2018-04-20 |
Family
ID=61944363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711351109.XA Pending CN107941425A (en) | 2017-12-15 | 2017-12-15 | A kind of bulge test device and application method applied to middle smaller diameter valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107941425A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108827564A (en) * | 2018-09-10 | 2018-11-16 | 陕西博菲特流体控制装备制造有限公司 | Valve two-way clamping test fixture |
| CN109323827A (en) * | 2018-11-13 | 2019-02-12 | 福建福清核电有限公司 | A kind of thrust bearing jacking oil non-return valve bulge test device and method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155099A (en) * | 2014-09-01 | 2014-11-19 | 天津精通控制仪表技术有限公司 | Dedicated combined device for calibrating compression strength of high-pressure valve through low-pressure water pump and calibration method |
-
2017
- 2017-12-15 CN CN201711351109.XA patent/CN107941425A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155099A (en) * | 2014-09-01 | 2014-11-19 | 天津精通控制仪表技术有限公司 | Dedicated combined device for calibrating compression strength of high-pressure valve through low-pressure water pump and calibration method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108827564A (en) * | 2018-09-10 | 2018-11-16 | 陕西博菲特流体控制装备制造有限公司 | Valve two-way clamping test fixture |
| CN108827564B (en) * | 2018-09-10 | 2024-02-09 | 陕西博菲特流体控制装备制造有限公司 | Valve two-way centre gripping test fixture |
| CN109323827A (en) * | 2018-11-13 | 2019-02-12 | 福建福清核电有限公司 | A kind of thrust bearing jacking oil non-return valve bulge test device and method |
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