CN208607521U - A kind of PLC control system of helium leak check filling recyclable device - Google Patents
A kind of PLC control system of helium leak check filling recyclable device Download PDFInfo
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- CN208607521U CN208607521U CN201821372455.6U CN201821372455U CN208607521U CN 208607521 U CN208607521 U CN 208607521U CN 201821372455 U CN201821372455 U CN 201821372455U CN 208607521 U CN208607521 U CN 208607521U
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Abstract
The utility model provides a kind of PLC control system of helium leak check filling recyclable device, it further include the mechanism for monitoring being electrically connected with PLC control module including PLC control module, executing agency, control panel, helium leak check filling recyclable device includes the nitrogen filling pipeline connecting with end connector, helium fills pipeline, helium recovery pipeline and workpiece for measurement empty pipeline, helium leak check is filled the device in recyclable device to be electrically connected as mechanism for monitoring or executing agency and PLC control module, system respectively fills recycling state, pressure value, valve opening state can real-time detection and control, mechanism for monitoring send data to PLC control module and under reach executing agency to helium filling recyclable device control, PLC control module is also connected with warning device, prompt alarm when system occurs abnormal, this Utility model in conjunction with helium filling recyclable device, realizes the automation of detection, while also ensuring the accuracy and repeatability of detection using PLC.
Description
Technical field
The utility model relates to a kind of PLC control systems of helium leak check filling recyclable device.
Background technique
Helium is stablized as a kind of inert gas, chemical property, and nontoxic, atom is small, is easy leakage, therefore often make
For the air-leakage test of air-tight cavity volume workpiece.
In the prior art, using helium carry out air-leakage test, frequently with method be helium mass spectrum leak detection method, helium mass spectrum
Leak detecting is the helium partial pressure measurement principle using helium mass spectrometer leak detector, realizes the helium leak measurement of detected pieces, works as detected pieces
There are when leak hole on sealing surface, the gas of probe gas helium and other ingredients can be released from leak hole, the gas leaked out
Into after helium mass spectrometer leak detector, due to the Selective recognition ability of helium mass spectrometer leak detector, the helium partial pressure in gas is only provided
Signal value is obtained with leak hole to helium leak by the method that referance leak compares on the basis of obtaining helium signal value
Amount, leak detection system is complicated, needs to design vacuum sealing chamber according to the volume and shape of examined product, testing cost is high.
Utility model content
The utility model provides a kind of PLC control system of helium leak check filling recyclable device, and helium is made to detect air-tightness
More automate, and a variety of detection workpiece can be compatible with, which is characterized in that including PLC control module, mechanism for monitoring, executing agency,
Control panel, mechanism for monitoring, executing agency, control panel are electrically connected with PLC control module respectively；
Helium filling recyclable device includes parallel arrangement of nitrogen filling pipeline and helium filling pipeline, the nitrogen filling
Pipeline and helium filling pipeline pass through end connector respectively and connect with workpiece for measurement, further include and respectively with end connector phase
Helium recovery pipeline even and workpiece for measurement empty pipeline, and nitrogen filling pipeline is connected with the first Pneumatic valve, and helium fills pipeline
It is connected with the second Pneumatic valve, normal pressure tank, third Pneumatic valve, air compressor, pressure pan, the first angle pedestal valve, the second angle pedestal valve,
Four Pneumatic valves, helium recovery pipeline are connected with the 5th Pneumatic valve, first pressure transmitter, the first vacuum pump in turn and connect normal pressure
Tank, workpiece for measurement emptying pipeline are connected with the 6th Pneumatic valve, second pressure transmitter, the second vacuum pump and are connected to outdoor, end
The gas outlet with outdoor connection is provided on connector, the gas outlet is provided with the 7th Pneumatic valve；
Mechanism for monitoring includes pressure apparatus, flow detection dress on pressure switch, pressure transmitter, pressure pan and normal pressure tank
It sets, executing agency includes Pneumatic valve, vacuum pump, angle pedestal valve and air compressor；
Wherein for control parameter to be arranged and is uploaded to PLC control module, the mechanism for monitoring is used for the control panel
Monitoring actual operation parameters are simultaneously uploaded to PLC control module, and the PLC control module based on the received transport by control parameter and reality
Row parameter carries out operation, and will be transmitted to executing agency under control instruction and control helium filling recyclable device.
The PLC control system is equipped with the warning device connecting with PLC control module, when the actual operation parameters monitored
When inconsistent with the control parameter threshold value of setting, alarm command is sent to warning device by the PLC control module.
Flow detector is connected with by way of threeway between second angle pedestal valve and the 4th Pneumatic valve, it can
Real-time detection concentrations of helium keeps detection accuracy.
First angle pedestal valve picks out the helium filling pipeline and connects a helium tank, the pressure in the pressure pan
When power is excessively high, helium enters helium tank by first angle pedestal valve, guarantees detection safety.
The helium recovery pipeline is connected with surge tank between the 5th Pneumatic valve and the first vacuum pump, before preventing vacuum pump
Hypertonia.
The interface of end connector connection workpiece for measurement is by a public end interface and multiple is become by Pneumatic valve, pressure
It send device sequentially connected Pneumatic valve interface, can detect mono-/multi- chamber and seal workpiece, guarantee the compatibility of detection.
The beneficial effects of the utility model are that the utility model controls helium filling recovery system using PLC, right
System respectively fills recycling state when running, pressure value and valve state carry out real-time control and monitoring, makes helium filling recycling dress
It sets automation and a variety of detection workpiece can be compatible with, guarantee the accuracy and repeatability of system detection.
Detailed description of the invention
Fig. 1 is the PLC control system schematic diagram that a kind of helium leak check provided by the utility model fills recyclable device.
Fig. 2 is that the PLC for the PLC control system that a kind of helium leak check provided by the utility model fills recyclable device controls original
Manage block diagram.
In figure: 1PLC control module, 2 execution modules, 3 monitoring modulars, 4 control panels, 5 warning devices, 211 first pressures
Switch, 212 second pressures switch, 221 first pressure transmitters, 222 second pressure transmitters, 23 pressure pans, 24 normal pressure tanks, 25
Flow detector, 26 surge tanks, 311 first Pneumatic valves, 312 second Pneumatic valves, 313 third Pneumatic valves, 314 the 4th gas controls
Valve, 315 the 5th Pneumatic valves, 316 the 6th Pneumatic valves, 317 the 7th Pneumatic valves, 321 first vacuum pumps, 322 second vacuum pumps, 331
First angle pedestal valve, 332 second angle pedestal valves, 341 air compressors.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
In order to express conveniently, sequentially connected direction is all gas flow direction in text.
As shown in Figure 1 and Figure 2, the utility model provides a kind of PLC control system of helium leak check filling recyclable device,
Be characterized in that, including PLC control module 1, mechanism for monitoring 2, executing agency 3, control panel 4, mechanism for monitoring 2, executing agency 3,
Control panel 4 is electrically connected with PLC control module 1 respectively；
Helium filling recyclable device includes parallel arrangement of nitrogen filling pipeline and helium filling pipeline, the nitrogen filling
Pipeline and helium filling pipeline pass through end connector respectively and connect with workpiece for measurement, further include and respectively with end connector phase
Helium recovery pipeline even and workpiece for measurement empty pipeline, and nitrogen filling pipeline is connected with the first Pneumatic valve 311, helium filler line
Road is connected with the second Pneumatic valve 312, normal pressure tank 24, third Pneumatic valve 313, air compressor 34, pressure pan 23, the first angle pedestal valve
331, the second angle pedestal valve 332, the 4th Pneumatic valve 314, helium recovery pipeline are connected with the 5th Pneumatic valve 315, first pressure in turn
Transmitter 221, the first vacuum pump 321 simultaneously connect normal pressure tank 24, and workpiece for measurement emptying pipeline is connected with the 6th Pneumatic valve 316, the
Two pressure transmitters 222, the second vacuum pump 322 are simultaneously connected to outdoor, and the gas outlet with outdoor connection is provided on end connector,
The gas outlet is provided with the 7th Pneumatic valve 317；
Mechanism for monitoring 2 include pressure switch 21, pressure transmitter 22, pressure pan 23 and pressure apparatus on normal pressure tank 24,
Flow detector 25, executing agency 3 include Pneumatic valve 31, vacuum pump 32, angle pedestal valve 33 and air compressor 34；
Wherein for control parameter to be arranged and is uploaded to PLC control module, the mechanism for monitoring is used for the control panel
Monitoring actual operation parameters are simultaneously uploaded to PLC control module, and the PLC control module based on the received transport by control parameter and reality
Row parameter carries out operation, and will be transmitted to executing agency under control instruction and control helium filling recyclable device.
The mechanism for monitoring 2, executing agency 3, control panel 4, warning device 5 are connect with PLC control module 1, monitoring machine
Structure 2 sends data to the PLC control module 1, and makes respective reaction to the executing agency 3, when the data in system
It is not inconsistent with setting data or when the error occurs, the PLC control module 1 to warning device 5 is transferred to, sends out faulty data transport
Alarm signal out.
Flow detection is connected with by way of threeway between second angle pedestal valve 332 and the 4th Pneumatic valve 314
Device 25, in pipeline other than a large amount of helium, there is also a small amount of nitrogen, flow detector 25 by detection nitrogen flow,
Extrapolation goes out the flow of helium and concentration at this time and transfers data to the PLC control module 1, to realize to concentrations of helium
Real-time detection.
First angle pedestal valve 331 picks out the helium filling pipeline and a helium tank 241 connects, when the pressure pan
When 23 air pressures are excessively high, the PLC control module 1 controls second angle pedestal valve 332 and closes, and opens first angle pedestal valve 331,
Helium is set to enter helium tank 241.
The helium recovery pipeline is connected with buffering between the 5th Pneumatic valve 315 and first vacuum pump 321
Tank 342, when helium recovery, the helium in the workpiece for measurement is introduced into surge tank 342, before preventing the first vacuum pump 321
Hypertonia.
The end connector connects the interface of the workpiece for measurement by a public end interface 61 and multiple by Pneumatic valve
The sequentially connected Pneumatic valve interface 62 of pressure transmitter, when detecting single-chamber or multi-cavity workpiece for measurement, by public end interface 61
It is correspondingly connected with workpiece for measurement cavity with Pneumatic valve interface 62, after setting infilling time, the PLC control module 1 is controlled
The Pneumatic valve of interface is closed, and the pressure value in workpiece for measurement is transferred to the PLC control module 1 by interface pressure transmitter, when
After setting the dwell time, the pressure value decline degree before and after the comparison dwell time of PLC control module 1 is described to judge
Micro- leakage degree of workpiece for measurement.
When system detection workpiece for measurement air-tightness, first it is filled with nitrogen and carries out big leak detection, helium passes through the first pressure
Switch 211, the first Pneumatic valve 311 and the end connector enter the workpiece for measurement, after setting infilling time, institute
The Pneumatic valve for stating 1 control interface of PLC control module is closed, and interface pressure transmitter transmits the pressure value in the workpiece for measurement
To the PLC control module 1, the PLC control module 1 declines degree by pressure value to judge the big leakage of the workpiece for measurement
Then helium is discharged by the 7th Pneumatic valve 317 for the nitrogen in the workpiece for measurement without big leakage for degree, starting described the
Pressure data is transferred to institute by the workpiece for measurement vacuum pumping state, the second pressure transmitter 222 by two vacuum pumps 322
PLC control module 1 is stated, helium is filled after setting evacuated time and carries out micro- leak detection, helium is opened by the second pressure
It closes the 212, second Pneumatic valve 312 and enters the normal pressure tank 24, then pass through the third Pneumatic valve 313, air compressor 34, high pressure
Tank 23, the second angle pedestal valve 332, the 4th Pneumatic valve 314 and the end connector enter the workpiece for measurement, the pressure pan 23
When air pressure deficiency, opens the third Pneumatic valve 313 and the air compressor 34 continues to supplement helium, when setting infilling time
After, the Pneumatic valve of 1 control interface of PLC control module is closed, and interface pressure transmitter is by the pressure in workpiece for measurement
Value is transferred to the PLC control module 1, after setting the dwell time, before the PLC control module 1 compares the dwell time
Rear pressure value decline degree judges micro- leakage degree of the workpiece for measurement, will be described to be measured after setting the helium leak test time
Helium in workpiece is recycled, start first vacuum pump 321 helium in the workpiece for measurement is evacuated and save to
The normal pressure tank 24, pressure data is transferred to the PLC control module 1 by the first pressure transmitter 221, when setting is recycled
Between after complete detection, reach recovering effect.
Claims (6)
1. a kind of PLC control system of helium leak check filling recyclable device, which is characterized in that including PLC control module (1), prison
Survey mechanism (2), executing agency (3), control panel (4), mechanism for monitoring (2), executing agency (3), control panel (4) respectively with
PLC control module (1) is electrically connected；
Helium filling recyclable device includes parallel arrangement of nitrogen filling pipeline and helium filling pipeline, and the nitrogen fills pipeline
Pass through end connector respectively with helium filling pipeline to connect with workpiece for measurement, further includes and be connected respectively with end connector
Helium recovery pipeline and workpiece for measurement empty pipeline, and nitrogen filling pipeline is connected with the first Pneumatic valve (311), and helium fills pipeline
It is connected with the second Pneumatic valve (312), normal pressure tank (24), third Pneumatic valve (313), air compressor (34), pressure pan (23),
One angle pedestal valve (331), the second angle pedestal valve (332), the 4th Pneumatic valve (314), helium recovery pipeline are connected with the 5th gas control in turn
Valve (315), first pressure transmitter (221), the first vacuum pump (321) simultaneously connect normal pressure tank (24), and workpiece for measurement empties pipeline
It is connected with the 6th Pneumatic valve (316), second pressure transmitter (222), the second vacuum pump (322) and is connected to outdoor, end connection
The gas outlet with outdoor connection is provided on device, the gas outlet is provided with the 7th Pneumatic valve (317)；
Mechanism for monitoring (2) includes the pressure on pressure switch (21), pressure transmitter (22), pressure pan (23) and normal pressure tank (24)
Device, flow detector (25), executing agency (3) include Pneumatic valve (31), vacuum pump (32), angle pedestal valve (33) and air pressure
Contracting machine (34)；
Wherein the control panel is for being arranged control parameter and being uploaded to PLC control module, and the mechanism for monitoring is for monitoring
Actual operation parameters are simultaneously uploaded to PLC control module, and the PLC control module based on the received join by control parameter and actual motion
Number carries out operation, and will be transmitted to executing agency under control instruction and control helium filling recyclable device.
2. a kind of PLC control system of helium leak check filling recyclable device according to claim 1, it is characterised in that described
PLC control system is equipped with the warning device (5) connecting with PLC control module (1).
3. a kind of PLC control system of helium leak check filling recyclable device according to claim 1, it is characterised in that described
Flow detector (25) are connected with by way of threeway between second angle pedestal valve (332) and the 4th Pneumatic valve (314).
4. a kind of PLC control system of helium leak check filling recyclable device according to claim 1, it is characterised in that described
First angle pedestal valve (331) picks out the helium filling pipeline and helium tank (241) connection.
5. a kind of PLC control system of helium leak check filling recyclable device according to claim 1, it is characterised in that described
Helium recovery pipeline is connected with surge tank (342) between the 5th Pneumatic valve (315) and first vacuum pump (321).
6. a kind of PLC control system of helium leak check filling recyclable device according to claim 1, it is characterised in that described
End connector connects the interface of the workpiece for measurement by a public end interface (61) and multiple by Pneumatic valve, pressure transmitter
Sequentially connected Pneumatic valve interface (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821372455.6U CN208607521U (en) | 2018-08-24 | 2018-08-24 | A kind of PLC control system of helium leak check filling recyclable device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821372455.6U CN208607521U (en) | 2018-08-24 | 2018-08-24 | A kind of PLC control system of helium leak check filling recyclable device |
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| Publication Number | Publication Date |
|---|---|
| CN208607521U true CN208607521U (en) | 2019-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821372455.6U Active CN208607521U (en) | 2018-08-24 | 2018-08-24 | A kind of PLC control system of helium leak check filling recyclable device |
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| CN (1) | CN208607521U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085793A (en) * | 2018-08-24 | 2018-12-25 | 苏州澳佰特自动化设备有限公司 | A kind of PLC control system of helium leak check filling recyclable device |
| CN114235301A (en) * | 2021-11-09 | 2022-03-25 | 上海贤日测控科技有限公司 | Air tightness detection system and method thereof |
-
2018
- 2018-08-24 CN CN201821372455.6U patent/CN208607521U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085793A (en) * | 2018-08-24 | 2018-12-25 | 苏州澳佰特自动化设备有限公司 | A kind of PLC control system of helium leak check filling recyclable device |
| CN114235301A (en) * | 2021-11-09 | 2022-03-25 | 上海贤日测控科技有限公司 | Air tightness detection system and method thereof |
| CN114235301B (en) * | 2021-11-09 | 2024-05-03 | 上海贤日测控科技有限公司 | Air tightness detection system and method thereof |
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