CN108680308A - A kind of the low hydraulic pressure method for testing tightness and system of high hydraulic electromagnetic valve - Google Patents
A kind of the low hydraulic pressure method for testing tightness and system of high hydraulic electromagnetic valve Download PDFInfo
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- CN108680308A CN108680308A CN201810819692.0A CN201810819692A CN108680308A CN 108680308 A CN108680308 A CN 108680308A CN 201810819692 A CN201810819692 A CN 201810819692A CN 108680308 A CN108680308 A CN 108680308A
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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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
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Abstract
A kind of the low hydraulic pressure method for testing tightness and system of high hydraulic electromagnetic valve, including：High hydraulic electromagnetic valve to be tested is connected to the direct-through valve of water tank by the first water pipe, and the syringe needle or tubule that internal diameter is not more than 1.5mm are connected by the second water pipe from the water outlet of the high hydraulic electromagnetic valve；The height of the water filling into the water tank, water surface distance direct-through valve not less than 70mm and is not higher than 330mm；It opens high hydraulic electromagnetic valve and opens direct-through valve, high hydraulic electromagnetic valve is closed after the air in the pipeline between flow venting direct-through valve and syringe needle or tubule；After opening one first preset duration of high hydraulic electromagnetic valve, one second preset duration of high hydraulic electromagnetic valve is closed, repeats high one preset times of hydraulic electromagnetic valve of break-make；It is primary to high hydraulic electromagnetic valve break-make again and acquire the water oozed at syringe needle under closed state or tubule；The water body accumulated amount of the water acquired from syringe needle or tubule is measured to judge the low hydraulic pressure sealing performance of high hydraulic electromagnetic valve, realizes low hydraulic pressure performing leak test.
Description
Technical field
The present invention relates to the performing leak test technical field of high hydraulic electromagnetic valve more particularly to a kind of high hydraulic electromagnetic valves
Low hydraulic pressure method for testing tightness and system.
Background technology
It can work normally, have more ripe in high water pressure condition for the high hydraulic electromagnetic valve in net drinking-water product at present
Standard detect, in electromagnetic valve forwater inlet of washing machine light industry standard (QB) QB/T1291-1991 just define height
The standard of hydraulic electromagnetic valve, electromagnetic valve forwater inlet of washing machine can detect it in high pressure shape by water pressure resistance, durability test
Leakproofness when state, test process and standard are quite perfect.But whether high hydraulic electromagnetic valve can be just in low hydraulic pressure state
Often work, whether there is or not water leakage situations, and there is presently no specific test method and system, current family has once in a while in use
There is drainage under low hydraulic pressure state because of the problems such as process structure of itself in existing high hydraulic electromagnetic valve, gives user's water
Trouble is caused, or even certain property loss can be caused.
Invention content
Technical problem to be solved by the present invention lies in provide a kind of low hydraulic pressure performing leak test side of high hydraulic electromagnetic valve
Method and system.
In order to solve the above-mentioned technical problem, the invention discloses following technical solutions.A kind of low water of high hydraulic electromagnetic valve
Means of press seals test method, including step：
High hydraulic electromagnetic valve to be tested is connected to the direct-through valve of a water tank by one first water pipe, and from the Gao Shui
The water outlet of pressure electromagnetic valve connects the syringe needle or tubule that an internal diameter is not more than 1.5mm by one second water pipe；
The height of the water filling into the water tank, water surface distance direct-through valve not less than 70mm and is not higher than 330mm；
It opens high hydraulic electromagnetic valve and opens direct-through valve, wait between flow venting direct-through valve and syringe needle or tubule
High hydraulic electromagnetic valve is closed after air in pipeline；
After opening one first preset duration of high hydraulic electromagnetic valve, one second preset duration of high hydraulic electromagnetic valve is closed, is repeated
High one preset times of hydraulic electromagnetic valve of break-make；
It is primary to high hydraulic electromagnetic valve break-make again and acquire the water oozed at syringe needle under closed state or tubule；
The water body accumulated amount of the water acquired from syringe needle or tubule is measured to judge that the low hydraulic pressure of high hydraulic electromagnetic valve seals
Performance.
Its further technical solution is：The water body accumulated amount for the water that the measurement acquires from syringe needle or tubule is to judge height
The low hydraulic pressure sealing performance of hydraulic electromagnetic valve includes step：
Judge water body accumulated amount whether more than a preset vol amount；
If water body accumulated amount is no more than the preset vol amount, judge that the low hydraulic pressure leakproofness of the high hydraulic electromagnetic valve is qualified；
If water body accumulated amount is more than the preset vol amount, judge that the low hydraulic pressure leakproofness of the high hydraulic electromagnetic valve is unqualified.
Its further technical solution is：The water body accumulated amount uses water droplet quantitative measure, and the preset vol amount is using pre-
If water droplet quantitative measure.
Its further technical solution is：The default water droplet quantity is no more than 30 drops.
Its further technical solution is：First preset duration is no more than 60 seconds.
Its further technical solution is：Second preset duration is no more than 60 seconds.
Its further technical solution is：The preset times are not less than 1 time and to be not more than 10 times.
A kind of low hydraulic pressure performing leak test system of high hydraulic electromagnetic valve includes：One water tank, for containing water；Always
Port valve door, is set to the one side bottom end of the water tank, and the height of the water surface of the direct-through valve in the water tank is not low
In 70mm and it is not higher than 330mm；One internal diameter is not more than the syringe needle or tubule of 1.5mm；One first water pipe, first water pipe
One end connects the direct-through valve, and the other end connects the water inlet of high hydraulic electromagnetic valve to be tested；One second water pipe, described
One end of two water pipes connects the water outlet of the high hydraulic electromagnetic valve, and the other end connects a syringe needle or tubule.
Its further technical solution is：One is equipped in the water tank for measuring the direct-through valve in the water tank
The water surface height value graduated scale.
Its further technical solution is：The water tank is made of transparent material.
The method have the benefit that：The low hydraulic pressure method for testing tightness and system of the high hydraulic electromagnetic valve include
There are the syringe needle of a high hydraulic electromagnetic valve to be tested, a water tank, a direct-through valve, an internal diameter no more than 1.5mm or tubule, one
High hydraulic electromagnetic valve to be tested, is connected to the straight-through valve of a water tank by the first water pipe and one second water pipe by the first water pipe
Door, and from the water outlet of the high hydraulic electromagnetic valve by the second water pipe connecting needle or tubule, the water filling into the water tank, the water surface
Height apart from direct-through valve is not less than 70mm and is not higher than 330mm, when work, emptying direct-through valve and syringe needle or tubule it
Between pipeline in air after, repeat high one preset times of hydraulic electromagnetic valve of break-make fully to verify the performance of high hydraulic electromagnetic valve
Stability and formedness after, then it is primary to high hydraulic electromagnetic valve break-make and acquire and oozed at syringe needle or tubule under closed state
Water, if the low hydraulic pressure leakproofness of high hydraulic electromagnetic valve is good, flow will be difficult to flow to through excessively high hydraulic electromagnetic valve syringe needle or
At person's tubule, if the low hydraulic pressure leakproofness of high hydraulic electromagnetic valve is poor, flow will be easy through excessively high hydraulic electromagnetic valve and from syringe needle
Or oozed at tubule, in this way, can judge that the low hydraulic pressure of high hydraulic electromagnetic valve seals according to the water body accumulated amount of the water oozed
Performance reaches experiment purpose.
Description of the drawings
Fig. 1 is the flow chart of one embodiment of the application；
Fig. 2 is the partial process view of one embodiment of the application；
Fig. 3 is the structural schematic diagram of one embodiment of the application.
Specific implementation mode
It is further to the technical solution of the application with reference to schematic diagram in order to more fully understand the technology contents of the application
It introduces and illustrates, but not limited to this.
As shown in figures 1 and 3, in one embodiment of the application, the low hydraulic pressure performing leak test side of the high hydraulic electromagnetic valve 3
Method includes step：
High hydraulic electromagnetic valve 3 to be tested is connected to the direct-through valve of a water tank 1 by S1 by one first water pipe 5, and certainly
The water outlet of the high hydraulic electromagnetic valve 3 connects the syringe needle 4 that an internal diameter is not more than 1.5mm by one second water pipe 6；
The height of S2, the water filling into the water tank 1, water surface distance direct-through valve 2 not less than 70mm and are not higher than 330mm；
S3 opens high hydraulic electromagnetic valve 3 and opens direct-through valve 2, waits between flow venting direct-through valve 2 and syringe needle 4
High hydraulic electromagnetic valve 3 is closed after air in pipeline；
S4 after opening the 3 one the first preset duration of high hydraulic electromagnetic valve, closes the 3 one the second preset duration of high hydraulic electromagnetic valve,
Repeat high 3 one preset times of hydraulic electromagnetic valve of break-make；
S5, then once and the water oozed at syringe needle 4 under closed state is acquired to 3 break-make of high hydraulic electromagnetic valve；
S6 measures the water body accumulated amount of the water acquired from syringe needle 4 to judge the low hydraulic pressure leakproofness of high hydraulic electromagnetic valve 3
Energy.
In real life, high hydraulic electromagnetic valve 3 has preferable sealing performance under high water pressures, but in low hydraulic pressure
In the state of be likely to occur leak, in the application, water intaking pressure be low when testing not less than 0.68Kpa and not higher than 3.23Kpa
Water pressure condition, after connecting test device by step S1, toward 1 water filling of water tank, according to hydraulic pressure calculation formula p=ρ * g*h, wherein
P is hydraulic pressure, and ρ is the density of water, and at normal atmospheric pressure, the density of water is 1 × 103kg/m3；G is acceleration of gravity, g=
9.8N/kg；H be depth of water height, can calculate water outlet pressure size requirements not less than 0.68Kpa and not higher than 3.23Kpa when, the water surface
Height apart from direct-through valve is not less than 70mm and to be not higher than 330mm.
In addition, syringe needle 4 of the selection internal diameter no more than 1.5mm is tested, if mainly considering, the internal diameter of syringe needle 4 is too big,
The water capacity in syringe needle 4 is vulnerable to the influence of the extraneous factors such as wind-force, vibration and is flowed out from syringe needle 4 automatically, so causes to check
As a result it judges by accident, is unfavorable for realizing testing goal.And when being full of water in syringe needle 4 of the internal diameter no more than 1.5mm, even if test wrapper
There are the influence of certain extraneous factors in border, the water in syringe needle 4 will not generally be dripped from syringe needle 4 easily, and test is caused to miss
Difference.And when opening the work of high hydraulic electromagnetic valve 3, for the water in water tank 1 under the action of hydraulic pressure, a small amount of water is through excessively high hydraulic electromagnetic valve
3 and flow at syringe needle 4, the water at syringe needle 4 is acted on by hydraulic pressure and drips and belong to normal test effect at this time.To ensure to test
Accuracy, it usually needs be reduced as far as the influence of extraneous factor, and the temperature range of environment temperature and water temperature is preferably protected
It holds between 15 DEG C~25 DEG C.
In some other embodiment, tubule of the internal diameter no more than 1.5mm can be used, syringe needle 4 is replaced to realize measurement purpose.
It is in order to avoid pipe that the air in the pipeline between flow venting direct-through valve 2 and syringe needle 4 is allowed in above-mentioned steps S3
Air bubble impacts test in road, if there are air bubbles in pipeline, in some cases, air bubble is broken may
Cause the water droplet at syringe needle 4 go out or pipeline in the water that should drip make gas only occur at syringe needle 4 because of the bubble space of occupancy
Bubble and water does not drip, so be easy to cause test error.Therefore, start high hydraulic pressure electricity after the air before testing in venting pipeline again
The low hydraulic pressure performing leak test of magnet valve 3 efficiently avoids error generation, advantageously ensures that the accuracy of test.
Open high hydraulic electromagnetic valve power supply electrifying work when, in electromagnetic coil generate magnetic force spool is carried upwards
Water retaining disk stomata is opened, so that valve body internal pressure and atmospheric pressure is generated pressure difference, thus hydraulic pressure washes water retaining disk open, flows out high pressure electromagnetic
The water outlet of valve；When disconnecting the power supply of high hydraulic electromagnetic valve makes its closing, in electromagnetic coil magnetic force disappear, spool falls stifled
Firmly water retaining disk stomata makes valve inner seal and block flow.When actual test, according to being repeated in step S4, the high hydraulic pressure of break-make is electric
3 one preset times of magnet valve refer to repeating to close high hydraulic electromagnetic valve 3 second in advance after opening 3 first preset duration of high hydraulic electromagnetic valve
If duration, the purpose of step S4 is fully to verify the stability and formedness of high hydraulic electromagnetic valve 3, if the high hydraulic pressure electricity
Magnet valve 3 can also keep good leakproofness after repeating break-make preset times under low hydraulic pressure state, could effectively illustrate
The high hydraulic electromagnetic valve 3 has good low hydraulic pressure leakproofness.
In step S4, the first preset duration, the second preset duration and preset times can be close according to routinely being carried out in this field
The time setting of envelope property test.Normally, the first preset duration is no more than 60 seconds；Second preset duration is no more than 60 seconds；It is default
Number is not less than 1 time and to be not more than 10 times.Preferably, the first preset duration is 5 seconds, 10 seconds or 30 seconds；Second it is default when
A length of 5 seconds, 10 seconds or 30 seconds；Preset times are 5 times.
In step S5, then it is once to use the break-make mode in step S4 again to Gao Shui to 3 break-make of high hydraulic electromagnetic valve
It is primary that pressure electromagnetic valve 3 carries out break-make.Break-make purpose is carried out in step S5 again to be through step S4 to high hydraulic electromagnetic valve 3
After sealing performance carries out verification detection, further actual quantization tests out the low hydraulic pressure leakproofness of high hydraulic electromagnetic valve 3, specific logical
It crosses after opening 3 first preset duration of high hydraulic electromagnetic valve and closes 3 second preset duration of high hydraulic electromagnetic valve, and in high pressure electromagnetic
The water oozed at syringe needle 4 is acquired when valve 3 is closed, then can determine whether the leakproofness of high hydraulic electromagnetic valve 3 by step S6.
Further, as shown in Fig. 2, above-mentioned steps S6, measures the water body accumulated amount of the water acquired from syringe needle 4 to judge height
The low hydraulic pressure sealing performance of hydraulic electromagnetic valve 3 specifically includes：
Whether S61 judges water body accumulated amount more than a preset vol amount；
S62 judges that the low hydraulic pressure leakproofness of the high hydraulic electromagnetic valve 3 is closed if water body accumulated amount is no more than the preset vol amount
Lattice；
S63 judges that the low hydraulic pressure leakproofness of the high hydraulic electromagnetic valve 3 does not conform to if water body accumulated amount is more than the preset vol amount
Lattice.
When test, high hydraulic electromagnetic valve 3 is carried out after repeating break-make preset times according to abovementioned steps S4, high pressure electromagnetic
It is filled with water in pipeline at the water outlet of valve 3 to syringe needle 4, as long as there is certain water again from high hydraulic electromagnetic valve 3 at this time
Water outlet comes out, and the water at syringe needle 4 may all be made to be extruded drippage, in this way, in abovementioned steps S5 again to high hydraulic electromagnetic valve 3
After secondary break-make is primary, the low hydraulic pressure sealing performance of high hydraulic electromagnetic valve 3 can be effectively detected out.Specifically, aforementioned step is completed
After the operation of rapid S4, it is filled with water in the pipeline at the water outlet to syringe needle 4 of high hydraulic electromagnetic valve 3, continues to complete abovementioned steps
The operation of S5, it is possible to understand that ground, if the leakproofness of high hydraulic electromagnetic valve 3 is preferable, this time in make and break process, the shipwreck in water tank 1
With or only on a small quantity the water outlet by the high hydraulic electromagnetic valve 3 and flow at syringe needle 4, i.e., do not have at syringe needle 4 water drip or
Only a small amount of water drippage；If the leakproofness of high hydraulic electromagnetic valve 3 is poor, this time in make and break process, the water in water tank 1 can relatively hold
It changes places the water outlet by the high hydraulic electromagnetic valve 3 and flow at syringe needle 4, i.e., be possible to ooze more water at syringe needle 4.Syringe needle
The water body accumulated amount oozed at 4 is water in water tank 1 flow to the water body accumulated amount at syringe needle 4 through excessively high hydraulic electromagnetic valve 3, in this way,
The water body accumulated amount of high hydraulic electromagnetic valve 3 can be judged to flow through by the water body accumulated amount for judging to ooze at syringe needle 4, also it may determine that
Go out the low hydraulic pressure sealing performance of high hydraulic electromagnetic valve 3.
To judge the water body accumulated amount size dripped at syringe needle 4, a preset vol amount need to be set and measured as a comparison to carry out
Multilevel iudge illustrates that the water body accumulated amount for flowing through high hydraulic electromagnetic valve 3 meets sealing if water body accumulated amount is no more than the preset vol amount
Property requirement, can determine that the low hydraulic pressure leakproofness of the high hydraulic electromagnetic valve 3 is qualified at this time；If water body accumulated amount is more than the preset vol
Amount, illustrates that the water body accumulated amount for flowing through high hydraulic electromagnetic valve 3 is unsatisfactory for the requirement of leakproofness, judges the low of the high hydraulic electromagnetic valve 3
Water-pressure sealed is unqualified.In the application, high hydraulic electromagnetic valve 3 of the preset vol amount generally according to this field routinely it is close
Specific sealing requirements of envelope property standard setting or user etc. are different to require setting, specifically, when user requires stringent, in advance
If volume gives a smaller magnitude；When user requires more loose, preset vol amount meets common test standard in industry
.
In the application, for convenience of detecting, water body accumulated amount generally use water droplet quantity is measured, correspondingly, preset vol
Amount is using default water droplet quantitative measure.Normally, it presets water droplet quantity and is no more than 30 drops.In the present embodiment, water droplet quantity is preset
It is set as 5 drops, that is to say, then is primary to high hydraulic electromagnetic valve break-make and when acquiring the water oozed at syringe needle 4 under closed state, leads to
The water droplet quantity for crossing the water oozed at metering syringe needle 4 is judged, if water droplet quantity is no more than 5 drops, judges the high pressure electromagnetic
The low hydraulic pressure leakproofness of valve is qualified；If water droplet quantity is more than 5 drops, judge that the low hydraulic pressure leakproofness of the high hydraulic electromagnetic valve does not conform to
Lattice.Judge simple and fast.Certainly, in some other embodiment, water body accumulated amount can also be counted by the actual volume value of water
Amount, correspondingly, preset vol amount is measured using preset vol value.
In the application, as shown in figure 3, the low hydraulic pressure performing leak test system of high hydraulic electromagnetic valve 3 includes Gao Shui to be measured
Pressure electromagnetic valve 3, a water tank 1, a direct-through valve 2, an internal diameter are not more than syringe needle 4, one first water pipe 5 and one second water of 1.5mm
Pipe 6, water tank 1 are set to the one side bottom end of water tank 1, water of the direct-through valve 2 in water tank 1 for containing water, direct-through valve 2
The height in face is not less than 70mm and is not higher than 330mm, and one end of the first water pipe 5 connects direct-through valve, the other end of the first water pipe 5
Connect the water inlet of high hydraulic electromagnetic valve to be tested；One end of second water pipe 6 connects the water outlet of the high hydraulic electromagnetic valve, the
The other end connecting needle 4 of two water pipes 6.Wherein, tubule of 4 available internal diameter of syringe needle no more than 1.5mm is replaced.
In the present embodiment, sound the depth of the water height for convenience, ensures the proper testing of low hydraulic pressure leakproofness, is equipped in water tank 1
The graduated scale of one height value for measuring the water surface of the direct-through valve 2 in water tank 1, meanwhile, water tank 1 uses transparent material system
At, such as acrylic panel, glass.In the present embodiment, as shown in Figure 1, the size of water tank 1 is 330mm*330mm*
330mm, volume are of moderate size, and facilitate test.
In the present embodiment, the water outlet bore magnitude range of direct-through valve 2 is 10mm~20mm.
In the present embodiment, the first water pipe 5 and one second water pipe, 6 generally use silica gel hose are realized.
In addition, for convenience of the water oozed at syringe needle 4 when collecting test, as shown in figure 3, further including having one in the test system
Aquamanile 7, the aquamanile 7 are sentenced for containing the water oozed at syringe needle 4 in above-mentioned steps S5, convenient subsequently measure
It is disconnected.
In the solution of the present invention, the low hydraulic pressure method for testing tightness and system of the high hydraulic electromagnetic valve 3 include to be measured
High hydraulic electromagnetic valve 3, a water tank 1, a direct-through valve 2 and an internal diameter for examination is not more than the syringe needle 4 or tubule of 1.5mm, will wait for
The high hydraulic electromagnetic valve 3 of test is connected to the direct-through valve of a water tank, and going out from the high hydraulic electromagnetic valve by the first water pipe 5
The mouth of a river is not low by 6 connecting needle 4 of the second water pipe or tubule, the height of the water filling into the water tank, water surface distance direct-through valve
In 70mm and it is not higher than 330mm, when work, after emptying the air in the pipeline between direct-through valve 2 and syringe needle 4 or tubule,
Ensure the height of the water surface, repeats high 3 one preset times of hydraulic electromagnetic valve of break-make fully to verify the performance of high hydraulic electromagnetic valve 3
Stability and formedness, then it is primary to 3 break-make of high hydraulic electromagnetic valve and acquire and ooze at syringe needle under closed state or tubule
Water, if the low hydraulic pressure leakproofness of high hydraulic electromagnetic valve 3 is good, flow will be difficult to flow to through excessively high hydraulic electromagnetic valve 3 syringe needle 4 or
At person's tubule, if the low hydraulic pressure leakproofness of high hydraulic electromagnetic valve 3 is poor, flow will be easy through excessively high hydraulic electromagnetic valve 3 and from needle
First 4 or tubule at ooze, in this way, can judge the low hydraulic pressure of high hydraulic electromagnetic valve 3 according to the water body accumulated amount of the water oozed
Sealing performance.The detecting system is simple in structure, and detection process is easy to operate, and testing result is accurate, reaches experiment purpose.
It is that above-mentioned preferred embodiment should be regarded as application scheme embodiment for example, all with application scheme thunder
Technology deduction, replacement, improvement etc. same, approximate or make based on this, are regarded as the protection domain of this patent.
Claims (10)
1. a kind of low hydraulic pressure method for testing tightness of high hydraulic electromagnetic valve, which is characterized in that including step：
High hydraulic electromagnetic valve to be tested is connected to the direct-through valve of a water tank by one first water pipe, and electric from the high hydraulic pressure
The water outlet of magnet valve connects the syringe needle or tubule that an internal diameter is not more than 1.5mm by one second water pipe；
The height of the water filling into the water tank, water surface distance direct-through valve not less than 70mm and is not higher than 330mm；
It opens high hydraulic electromagnetic valve and opens direct-through valve, wait for the pipeline between flow venting direct-through valve and syringe needle or tubule
In air after close high hydraulic electromagnetic valve；
After opening one first preset duration of high hydraulic electromagnetic valve, one second preset duration of high hydraulic electromagnetic valve is closed, repeats break-make
One preset times of high hydraulic electromagnetic valve；
It is primary to high hydraulic electromagnetic valve break-make again and acquire the water oozed at syringe needle under closed state or tubule；
The water body accumulated amount of the water acquired from syringe needle or tubule is measured to judge the low hydraulic pressure sealing performance of high hydraulic electromagnetic valve.
2. the low hydraulic pressure method for testing tightness of high hydraulic electromagnetic valve according to claim 1, which is characterized in that the survey
The water body accumulated amount of the water acquired from syringe needle or tubule is measured to judge that the low hydraulic pressure sealing performance of high hydraulic electromagnetic valve includes step
Suddenly：
Judge water body accumulated amount whether more than a preset vol amount；
If water body accumulated amount is no more than the preset vol amount, judge that the low hydraulic pressure leakproofness of the high hydraulic electromagnetic valve is qualified；
If water body accumulated amount is more than the preset vol amount, judge that the low hydraulic pressure leakproofness of the high hydraulic electromagnetic valve is unqualified.
3. the low hydraulic pressure method for testing tightness of high hydraulic electromagnetic valve according to claim 2, which is characterized in that the water
Volume uses water droplet quantitative measure, and the preset vol amount is using default water droplet quantitative measure.
4. the low hydraulic pressure method for testing tightness of high hydraulic electromagnetic valve according to claim 3, which is characterized in that described pre-
If water droplet quantity is no more than 30 drops.
5. the low hydraulic pressure method for testing tightness of high hydraulic electromagnetic valve according to claim 1, which is characterized in that described
One preset duration is no more than 60 seconds.
6. the low hydraulic pressure method for testing tightness of high hydraulic electromagnetic valve according to claim 1, which is characterized in that described
Two preset durations are no more than 60 seconds.
7. the low hydraulic pressure method for testing tightness of high hydraulic electromagnetic valve according to claim 1, which is characterized in that described pre-
If number is not less than 1 time and is not more than 10 times.
8. a kind of low hydraulic pressure performing leak test system of high hydraulic electromagnetic valve, which is characterized in that include：
One water tank, for containing water；
One direct-through valve is set to the one side bottom end of the water tank, the water surface of the direct-through valve in the water tank
Height is not less than 70mm and is not higher than 330mm；
One internal diameter is not more than the syringe needle or tubule of 1.5mm；
One end of one first water pipe, first water pipe connects the direct-through valve, and the other end connects high hydraulic pressure electricity to be tested
The water inlet of magnet valve；
One end of one second water pipe, second water pipe connects the water outlet of the high hydraulic electromagnetic valve, and the other end connects described in one
Syringe needle or tubule.
9. the low hydraulic pressure performing leak test system of high hydraulic electromagnetic valve according to claim 8, which is characterized in that the water
The graduated scale of a height value for measuring the water surface of the direct-through valve in the water tank is equipped in case.
10. the low hydraulic pressure performing leak test system of high hydraulic electromagnetic valve according to claim 8, which is characterized in that described
Water tank is made of transparent material.
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| CN201810819692.0A CN108680308B (en) | 2018-07-24 | 2018-07-24 | Low-water-pressure tightness testing method and system for high-water-pressure electromagnetic valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110907167A (en) * | 2019-12-28 | 2020-03-24 | 东北轻合金有限责任公司 | Emulsion electromagnetic valve off-line detection device and method |
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| KR20150142968A (en) * | 2014-06-13 | 2015-12-23 | 최몽주 | Water leak test device |
| CN205352664U (en) * | 2015-10-30 | 2016-06-29 | 芜湖乐佳电器有限公司 | Novel invariable hydraulic electric water valve intelligent detecting system |
| CN105606355A (en) * | 2016-02-26 | 2016-05-25 | 余姚市三力信电磁阀有限公司 | Large integrated water gas solenoid valve detection system |
| CN106248309A (en) * | 2016-08-24 | 2016-12-21 | 吴忠仪表有限责任公司 | Intelligence pressure testing machine |
| CN206074197U (en) * | 2016-08-31 | 2017-04-05 | 中建八局第一建设有限公司 | A kind of underground project waterproof coiled material welding line detector |
| CN206450380U (en) * | 2016-11-18 | 2017-08-29 | 浙江华益精密机械股份有限公司 | Hydraulic valve reveals measuring device |
| CN206593815U (en) * | 2017-03-13 | 2017-10-27 | 佛山市爱森宝机电设备有限公司 | A kind of tap high-low pressure test system |
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| CN110907167A (en) * | 2019-12-28 | 2020-03-24 | 东北轻合金有限责任公司 | Emulsion electromagnetic valve off-line detection device and method |
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