CN207741907U - A kind of check valve air tightness detecting system - Google Patents
A kind of check valve air tightness detecting system Download PDFInfo
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- CN207741907U CN207741907U CN201721132697.3U CN201721132697U CN207741907U CN 207741907 U CN207741907 U CN 207741907U CN 201721132697 U CN201721132697 U CN 201721132697U CN 207741907 U CN207741907 U CN 207741907U
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- check valve
- vacuum tank
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Abstract
The utility model discloses a kind of check valve air tightness detecting systems, including vacuum plant, executive device, detection device and pneumatic device；The vacuum plant is connect by the executive device with detection device, for being vacuumized to the detection device；The executive device is used to control the break-make between the vacuum plant and detection device；The detection device is connect with check valve, the air-tightness for detecting the check valve；The pneumatic device can contact or be detached from the check valve, for doing qualified mark on the check valve.The advantages of the utility model and advantageous effect are：The utility model provides a kind of check valve air tightness detecting system, it is simple and reliable, simple operation, the degree of automation and work efficiency is high, avoid due to manual operation the error caused by testing result, the accuracy for improving the airtight detection of check valve improves worker and recognizes the qualified efficiency with underproof check valve, is conducive to promote on a large scale.
Description
Technical field
The utility model is related to detection field, more particularly to a kind of check valve air tightness detecting system.
Background technology
Detection refers to the specified technical performance index of specified certain object of method verification test, existing check valve inspection
Generally use artificial detection is surveyed, however excessive manual operation will impact the air-tightness of check valve, and test is caused to be tied
The error amount of fruit is larger, and accuracy is relatively low；And manual detection mode is cumbersome, and the degree of automation is low, causes less efficient.
Utility model content
To solve the above-mentioned problems, the utility model provides a kind of check valve air tightness detecting system.The technical program passes through
Vacuum source is provided for check valve using vacuum plant, the break-make between vacuum plant and detection device is controlled using executive device,
Ensure that the vacuum source of detection device is stablized, detection device detects the air-tightness of check valve, and by pneumatic device to the unidirectional of qualification
Valve does qualified mark, and staff is enable to differentiate qualified and underproof check valve in time；Therefore the technical program simply may be used
It leans on, simple operation, the degree of automation and work efficiency is high, avoids due to manual operation the error caused by testing result, carry
The high accuracy of the airtight detection of check valve, is conducive to promote on a large scale.
A kind of check valve air tightness detecting system in the utility model, including vacuum plant, executive device, detection device and
Pneumatic device；
The vacuum plant is connect by the executive device with detection device, true for the detection device take out
It is empty；The executive device is used to control the break-make between the vacuum plant and detection device；
The detection device is connect with check valve, the air-tightness for detecting the check valve；The pneumatic device can be with
The check valve contact is detached from, for doing qualified mark on the check valve.
In said program, the vacuum plant includes vacuum pump, voltage stabilizing vacuum tank and pressure regulator valve, and the vacuum pump passes through tune
Pressure valve is connect with the voltage stabilizing vacuum tank, and the vacuum pump vacuumizes the voltage stabilizing vacuum tank, until the voltage stabilizing is true
When the internal pressure of slack tank reaches the threshold value of the pressure regulator valve setting, the vacuum pump is automatically stopped operation.
In said program, the detection device includes standard vacuum tank, vacuum transducer and controller, the standard vacuum
Tank is connect with the vacuum transducer and controller respectively, and the controller controls the internal pressure in the standard vacuum tank,
The standard vacuum tank is connect with check valve, for carrying out airtight detection to the check valve；
The vacuum transducer is connect with check valve and controller respectively, for sensing the standard vacuum tank and check valve
Internal pressure, and the information of the standard vacuum tank and the internal pressure of check valve is sent to the controller；The control
Device processed judges the testing result of airtight detection according to the internal pressure of the standard vacuum tank and the check valve.
In said program, the executive device includes three-way magnetic valve, and the three-way magnetic valve has first interface, second
Interface and third interface and first switch, second switch and third switch；
The first switch controls the break-make of the first interface, and the second switch controls the logical of the second interface
Disconnected, the third switch controls the break-make of the third interface；The first interface is connect with the voltage stabilizing vacuum tank, and described
Two interfaces are connect with the standard vacuum tank, and the third interface is directly connected to air；The controller is respectively with described
One switch, second switch and third switch connection.
In said program, the pneumatic device has qualified mark, and is connect with the controller；The controller according to
Airtight testing result control starter does qualified mark on the check valve.
In said program, the detection device further includes vacuum meter, and the vacuum meter is connect with the standard vacuum tank, is used
In the internal pressure size for showing the standard vacuum tank.
In said program, the detection device further includes alarm, and the controller is according to the testing result of airtight detection
Alarm is sent out by the alarm.
A kind of airtight detection method of check valve, above-mentioned check valve air tightness detecting system include the following steps：
S1. operated vacuum pumps after the threshold value of setting pressure regulator valve, make vacuum pump vacuumize the voltage stabilizing vacuum tank, directly
When reaching the threshold value of the pressure regulator valve setting to the vacuum degree in the voltage stabilizing vacuum tank, the vacuum pump is automatically stopped operation；
The internal pressure of voltage stabilizing vacuum tank will be consistent with the threshold value of pressure regulator valve at this time；
S2. operation and control device opens the first switch and the second switch of three-way magnetic valve, closes the three-way magnetic valve
Third switchs, and makes to be interconnected between first interface and second interface, and then make phase between voltage stabilizing vacuum tank and standard vacuum tank
It is intercommunicated, to realize that the voltage stabilizing vacuum tank vacuumizes standard vacuum tank；
S3. there is in the controller normal pressure, the internal pressure of the real-time monitoring standard vacuum tank of controller, when
When the internal pressure of the standard vacuum tank reaches the normal pressure, the controller controls the second switch and closes, and makes
Voltage stabilizing vacuum tank and standard vacuum tank it is separated；
S4. standard vacuum tank is connect with check valve and the check valve is vacuumized, with to the check valve into
The close detection of promoting the circulation of qi, the vacuum transducer sense the internal pressure of the standard vacuum tank and check valve；
S5. the controller is monitored the internal pressure of the standard vacuum tank and check valve and timing, and according to
The raised pressure values of internal pressure of the standard vacuum tank and check valve, calculate the leakage of the check valve within the unit interval
Testing result of the rate as airtight detection；
S6. there is standard speed, if the leak rate of the check valve is higher than the standard speed, institute in the controller
It states controller control alarm and sends out alarm；
If S7. the leak rate of the check valve is less than the standard speed, the controller controls pneumatic equipment in institute
It states and does qualified mark on check valve.
In said program, standard atmospheric pressure 100KPa；
In the S1, the threshold value of the pressure regulator valve setting is more than 70KPa, and is less than 90KPa；
In the S3, the normal pressure is more than 70KPa, and is less than 90KPa；
In the S6, the standard speed is more than 1ml/min, and is less than 3ml/min.
It is further comprising the steps of in said program：
S8. vacuum pump monitors the internal pressure of voltage stabilizing vacuum tank in real time, if the internal pressure of the voltage stabilizing vacuum tank is more than
When the threshold value of pressure regulator valve setting, vacuum pump starts automatic to be vacuumized to the voltage stabilizing vacuum tank, until the voltage stabilizing
Stop after the internal pressure of vacuum tank is consistent with the threshold value that the pressure regulator valve is set；
S9. airtight detection, the controller are carried out successively to multiple check valves using the check valve air tightness detecting system
The testing result of the airtight detection of each check valve is counted, and calculates the overall acceptability rate for obtaining the multiple check valve；
S10. the controller can also generate examining report according to the overall acceptability rate of the multiple check valve.
The advantages of the utility model and advantageous effect are：The utility model provides a kind of check valve air tightness detecting system,
Simple and reliable, simple operation, the degree of automation and work efficiency is high avoids due to manual operation caused by testing result accidentally
Difference improves the accuracy of the airtight detection of check valve, improves worker and recognizes the qualified efficiency with underproof check valve, favorably
It is promoted in a wide range of.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of structural schematic diagram of check valve air tightness detecting system of the utility model.
In figure：1, vacuum plant 2, executive device 3, detection device 4, pneumatic device
5, check valve 11, vacuum pump 12, voltage stabilizing vacuum tank 13, pressure regulator valve
21, three-way magnetic valve 22, first interface 23, second interface 24, third interface
25, first switch 26, second switch 27, third switch 31, standard vacuum tank
32, vacuum transducer 33, controller 34, vacuum meter 35, alarm
Specific implementation mode
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and the protection model of the utility model cannot be limited with this
It encloses.
As shown in Figure 1, the utility model is a kind of check valve air tightness detecting system, including vacuum plant 1, executive device 2,
Detection device 3 and pneumatic device 4；
Vacuum plant 1 is connect by executive device 2 with detection device 3, for being vacuumized to detection device 3；It executes
Device 2 is used to control the break-make between vacuum plant 1 and detection device 3；
Detection device 3 is connect with check valve 5, the air-tightness for detecting check valve 5；Pneumatic device 4 can connect with check valve 5
It touches or is detached from, for doing qualified mark on check valve 5.
The operation principle of above-mentioned technical proposal is：It is that check valve 5 provides vacuum source by using vacuum plant 1, using holding
Luggage sets the break-make between 2 control vacuum plants 1 and detection device 3, ensures that the vacuum source of detection device 3 is stablized, detection device 3
The air-tightness of check valve 5 is detected, and qualified mark is done to qualified check valve 5 by pneumatic device 4, keeps staff timely
Differentiate qualified and underproof check valve 5；Therefore the technical program is simple and reliable, simple operation, and the degree of automation and work are imitated
Rate is high, avoids due to manual operation the error caused by testing result, improves the accuracy of the airtight detection of check valve, favorably
It is promoted in a wide range of.
Specifically, vacuum plant 1 includes vacuum pump 11, voltage stabilizing vacuum tank 12 and pressure regulator valve 13, vacuum pump 11 passes through pressure regulation
Valve 13 is connect with voltage stabilizing vacuum tank 12, and vacuum pump 11 vacuumizes voltage stabilizing vacuum tank 12, until in voltage stabilizing vacuum tank 12
When portion's pressure reaches the threshold value of the setting of pressure regulator valve 13, vacuum pump 11 is automatically stopped operation.
Further, detection device 3 includes standard vacuum tank 31, vacuum transducer 32 and controller 33, standard vacuum tank
31 connect with vacuum transducer 32 and controller 33 respectively, and controller 33 controls the internal pressure in standard vacuum tank 31, standard
Vacuum tank 31 is connect with check valve 5, for carrying out airtight detection to check valve 5；
Vacuum transducer 32 is connect with check valve 5 and controller 33 respectively, for sensing standard vacuum tank 31 and check valve 5
Internal pressure, and the information of standard vacuum tank 31 and the internal pressure of check valve 5 is sent to controller 33；Controller 33
The testing result of airtight detection is judged according to the internal pressure of standard vacuum tank 31 and check valve 5.
Further, executive device 2 includes three-way magnetic valve 21, and there is three-way magnetic valve 21 first interface 22, second to connect
Mouth 23 and third interface 24 and first switch 25, second switch 26 and third switch 27；
First switch 25 controls the break-make of first interface 22, and second switch 26 controls the break-make of second interface 23, and third is opened
Close the break-make of 27 control third interfaces 24；First interface 22 is connect with voltage stabilizing vacuum tank 12, second interface 23 and standard vacuum tank
31 connections, third interface 24 are directly connected to air；Controller 33 is switched with first switch 25, second switch 26 and third respectively
27 connections.
Further, pneumatic device 4 has qualified mark, and is connect with controller 33；Controller 33 is according to airtight detection
Output control starter does qualified mark on check valve 5.
Preferably, detection device 3 further includes vacuum meter 34, and vacuum meter 34 is connect with standard vacuum tank 31, for showing mark
The internal pressure size of quasi- vacuum tank 31.
Preferably, detection device 3 further includes alarm 35, and controller 33 passes through alarm according to the testing result of airtight detection
Device 35 sends out alarm.
A kind of airtight detection method of check valve, above-mentioned check valve air tightness detecting system include the following steps：
S1. operated vacuum pumps 11 after the threshold value of setting pressure regulator valve 13, make vacuum pump 11 to voltage stabilizing vacuum tank 12 take out very
Sky, when the vacuum degree in voltage stabilizing vacuum tank 12 reaches the threshold value of the setting of pressure regulator valve 13, vacuum pump 11 is automatically stopped operation；This
When voltage stabilizing vacuum tank 12 internal pressure will be consistent with the threshold value of pressure regulator valve 13；
S2. operation and control device 33 opens the first switch 25 and second switch 26 of three-way magnetic valve 21, closes threeway electromagnetism
The third switch 27 of valve 21 makes to be interconnected between first interface 22 and second interface 23, and then makes voltage stabilizing vacuum tank 12 and mark
It is interconnected between quasi- vacuum tank 31, to realize that voltage stabilizing vacuum tank 12 vacuumizes standard vacuum tank 31；
S3. there is normal pressure, the internal pressure of 33 real-time monitoring standard vacuum tank 31 of controller to work as mark in controller 33
When the internal pressure of quasi- vacuum tank 31 reaches normal pressure, controller 33 controls second switch 26 and closes so that voltage stabilizing vacuum tank
12 is separated with standard vacuum tank 31；
S4. standard vacuum tank 31 is connect with check valve 5 and check valve 5 is vacuumized, with to check valve 5 into promoting the circulation of qi
Close detection, vacuum transducer 32 sense the internal pressure of standard vacuum tank 31 and check valve 5；
S5. controller 33 is monitored the internal pressure of standard vacuum tank 31 and check valve 5 and timing, and according in list
The raised pressure values of internal pressure of position time internal standard vacuum tank 31 and check valve 5, calculate the leak rate conduct of check valve 5
The testing result of airtight detection；
S6. there is standard speed, if the leak rate of check valve 5 is higher than standard speed, controller 33 is controlled in controller 33
Alarm 35 processed sends out alarm；
If S7. the leak rate of check valve 5 is less than standard speed, controller 33 controls pneumatic equipment and is done on check valve 5
Qualification mark.
Specifically, standard atmospheric pressure is 100KPa；
In S1, the threshold value that pressure regulator valve 13 is set is more than 70KPa, and is less than 90KPa；
In S3, normal pressure is more than 70KPa, and is less than 90KPa；
In S6, standard speed is more than 1ml/min, and is less than 3ml/min.
Preferably, in S1, the threshold value that pressure regulator valve 13 is set is 80KPa；
In S3, normal pressure 80KPa；
In S6, standard speed 2ml/min.
Preferably, further comprising the steps of：
S8. vacuum pump 11 monitors the internal pressure of voltage stabilizing vacuum tank 12 in real time, if the internal pressure of voltage stabilizing vacuum tank 12 is big
When the threshold value that pressure regulator valve 13 is set, vacuum pump 11 starts automatic to be vacuumized to voltage stabilizing vacuum tank 12, until voltage stabilizing
Stop after the internal pressure of vacuum tank 12 is consistent with the threshold value that pressure regulator valve 13 is set；
S9. airtight detection is carried out successively to multiple check valves 5 using check valve air tightness detecting system, controller 33 counts each
The testing result of the airtight detection of check valve 5, and calculate the overall acceptability rate for obtaining multiple check valves 5；
S10. controller 33 can also generate examining report according to the overall acceptability rate of multiple check valves 5.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of check valve air tightness detecting system, which is characterized in that including vacuum plant, executive device, detection device and pneumatic
Device；
The vacuum plant is connect by the executive device with detection device, for being vacuumized to the detection device；
The executive device is used to control the break-make between the vacuum plant and detection device；
The detection device is connect with check valve, the air-tightness for detecting the check valve；The pneumatic device can with it is described
Check valve is contacted or is detached from, for doing qualified mark on the check valve.
2. a kind of check valve air tightness detecting system according to claim 1, which is characterized in that the vacuum plant includes true
Sky pump, voltage stabilizing vacuum tank and pressure regulator valve, the vacuum pump are connect by pressure regulator valve with the voltage stabilizing vacuum tank, the vacuum pump pair
The voltage stabilizing vacuum tank is vacuumized, until the internal pressure of the voltage stabilizing vacuum tank reaches the threshold value of the pressure regulator valve setting
When, the vacuum pump is automatically stopped operation.
3. a kind of check valve air tightness detecting system according to claim 2, which is characterized in that the detection device includes mark
Quasi- vacuum tank, vacuum transducer and controller, the standard vacuum tank are connect with the vacuum transducer and controller respectively, institute
It states controller and controls internal pressure in the standard vacuum tank, the standard vacuum tank is connect with check valve, for described
Check valve carries out airtight detection；
The vacuum transducer is connect with check valve and controller respectively, for sensing the interior of the standard vacuum tank and check valve
Portion's pressure, and the information of the standard vacuum tank and the internal pressure of check valve is sent to the controller；The controller
The testing result of airtight detection is judged according to the internal pressure of the standard vacuum tank and the check valve.
4. a kind of check valve air tightness detecting system according to claim 3, which is characterized in that the executive device includes three
Three-way electromagnetic valve, the three-way magnetic valve have first interface, second interface and third interface and first switch, second switch
It is switched with third；
The first switch controls the break-make of the first interface, and the second switch controls the break-make of the second interface, institute
State the break-make that third switch controls the third interface；The first interface is connect with the voltage stabilizing vacuum tank, and described second connects
Mouth is connect with the standard vacuum tank, and the third interface is directly connected to air；The controller is opened with described first respectively
It closes, second switch and third switch connect.
5. a kind of check valve air tightness detecting system according to claim 3, which is characterized in that the pneumatic device, which has, to be closed
Case marker is known, and is connect with the controller；The controller controls starter in the check valve according to airtight testing result
On do qualified mark.
6. a kind of check valve air tightness detecting system according to claim 3, which is characterized in that the detection device further includes
Vacuum meter, the vacuum meter are connect with the standard vacuum tank, the internal pressure size for showing the standard vacuum tank.
7. a kind of check valve air tightness detecting system according to claim 3, which is characterized in that the detection device further includes
Alarm, the controller send out alarm according to the testing result of airtight detection by the alarm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721132697.3U CN207741907U (en) | 2017-09-05 | 2017-09-05 | A kind of check valve air tightness detecting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721132697.3U CN207741907U (en) | 2017-09-05 | 2017-09-05 | A kind of check valve air tightness detecting system |
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| CN207741907U true CN207741907U (en) | 2018-08-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560804A (en) * | 2017-09-05 | 2018-01-09 | 上海肇民动力科技有限公司 | A kind of check valve air tightness detecting system and method |
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2017
- 2017-09-05 CN CN201721132697.3U patent/CN207741907U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560804A (en) * | 2017-09-05 | 2018-01-09 | 上海肇民动力科技有限公司 | A kind of check valve air tightness detecting system and method |
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