CN102507109A - One-way valve rubber tube positive pressure opening and negative pressure leakage detection device and operation method - Google Patents
One-way valve rubber tube positive pressure opening and negative pressure leakage detection device and operation method Download PDFInfo
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- CN102507109A CN102507109A CN2011103417145A CN201110341714A CN102507109A CN 102507109 A CN102507109 A CN 102507109A CN 2011103417145 A CN2011103417145 A CN 2011103417145A CN 201110341714 A CN201110341714 A CN 201110341714A CN 102507109 A CN102507109 A CN 102507109A
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Abstract
The invention relates to a one-way valve rubber tube positive pressure opening and negative pressure leakage detection device and operation method. The detection device comprises a positive pressure opening test circuit and a negative pressure leakage test circuit; the control of the positive pressure charging of the positive pressure opening circuit is realized by a positive pressure regulating valve 1; in the negative pressure leakage circuit, negative pressure is generated by adopting a vacuum generator 2, and the control of the negative pressure charging is realized by a negative pressure regulating valve 3; and the on-off of both the circuits is controlled by an electromagnetic valve 4, and the two circuits are in parallel connection, so that the mutual interference between the two circuits is avoided, and the functions of the detection of positive pressure opening and negative pressure leakage can be performed individually. The detection device comprises a touch screen of a man-machine interface, the touch screen of the man-machine interface realizes the input of test parameters, charge pressure, time and pressure detection value are preset through the interface, and work orders are given by a control system. Detection parameters can be set by workers according to the actual specifications and requirements of a rubber tube to be detected, and thus, the flexibility in detection is enlarged. The one-way valve rubber tube positive pressure opening and negative pressure leakage detection device is simple in structure, easy to operate by workers and high in degree of intelligence and can be popularized and applied to rubber tube enterprises.
Description
Technical field
The present invention relates to the sebific duct detection range, particularly a kind of retaining valve sebific duct malleation is opened and negative pressure leak detecting device and method of operating.
Background technology
The retaining valve sebific duct is applied to the vacuum servo system, and wherein retaining valve plays the effect that keeps the booster internal vacuum.The quality of retaining valve receives increasing concern, and its installation direction on sebific duct is also particularly important.If retaining valve can not be in the enough vacuum tightness of the inner generation of booster, when engine reached high speed rotating, the power-assisted effect was bad so, even can't power-assisted.At present the retaining valve sebific duct is carried out that malleation is opened and the common method of negative pressure Leak Detection is: get the sebific duct that retaining valve is housed; The workman blows the malleation opening end of sebific duct with mouth; Finger is placed on the other end of sebific duct,, then judges the unlatching of retaining valve malleation if feel air-flow; The workman inhales the malleation opening end of sebific duct with mouth then, if the vacuum sense is arranged, judges that then retaining valve sebific duct negative pressure do not have leakage.
This detection method wastes time and energy, because artificial difference exists input air pressure unstable, and the problem of testing process poor operability, and whether the workman can't implement monitoring to the correct judgment of test result, and precision of test result is difficult to guarantee.
Summary of the invention
To the deficiency of prior art, develop a kind of retaining valve sebific duct malleation time saving and energy saving, that the result is simple, intelligent degree is higher and open and the negative pressure leak detecting device.The sebific duct that retaining valve is housed is installed on the pick-up unit, and the state after simulated automotive is installed detects, and to improving detection efficiency, especially improves detection accuracy, guarantees that product quality is of great advantage.
Retaining valve sebific duct malleation of the present invention is opened and the negative pressure leak detecting device is realized through following technical scheme:
A kind of retaining valve sebific duct malleation is opened and the negative pressure leak detecting device, and is as shown in Figure 2, comprises that malleation is opened and negative pressure is leaked two test loops; Malleation is opened the malleation charged pressure is realized in the loop by malleation pressure regulator valve 1 control; Negative pressure is leaked the loop and is adopted vacuum generator 2 to produce negative pressure, is realized the control of negative pressure charged pressure again by negative pressure pressure regulator valve 3; Article two, parallel connection is realized by solenoid valve 4 control loop switches in the loop, to prevent two phase mutual interference between the loop, can carry out malleation separately and open and negative pressure Leak Detection function.
Retaining valve sebific duct malleation of the present invention is opened and negative pressure leak detecting device method of operating; Pressure transducer 5 links to each other with an end of tested sebific duct; Force value in controller PLC transmits tested sebific duct; When controller PLC thinks that tested sebific duct forward does not have unlatching or negative pressure leakage, issue instructions to alarm, accomplish alarm by alarm.
The concrete operations flow process is following:
At first import malleation and open and negative pressure leakage process detected parameters, with tested sebific duct forward cut-in pressure sensor, the other end blocks; The open operation button, retaining valve forward open detection starts; Open the loop by air supply system to forward and charge into malleation, in the pressurising time, pressure changes to the pressurising ultimate value, and alarm alarm pressurising is unusual; In the pressurising time, sebific duct pressure drops to the unlatching setting value, proves the unlatching of sebific duct forward, detects and opens required time; Exceed the pressurising time, sebific duct pressure does not drop to the unlatching setting value, and the sebific duct forward is not opened, and the alarm alarm detects not to be passed through; Alarm is not unusual like the forward open detection, and then the negative pressure Leak Detection starts voluntarily; Leak the loop forward by air supply system to negative pressure and charge into negative pressure, in the pressurising time, pressure changes to the pressurising ultimate value, and warning system alarm pressurising is unusual; In the dwell time, sebific duct pressure drops to pressure limit value, proves the leakage of sebific duct negative pressure, and the warning system alarm detects not to be passed through; Dwell time arrives, the force value after the pressure transducer record descends, and controller PLC is setting value relatively, meets the testing setup scope, and it is qualified to detect, through detecting; Detect like the need lower whorl, only need to change tested sebific duct, open operation button again.
The present invention includes the man-machine interface touch-screen and realize the input of test parameter, preestablish charged pressure through this interface, the time, detected pressure value is assigned work order by control system again.The staff can set detected parameters through the actual specification and the requirement of sebific duct to be detected, has enlarged the dirigibility that detects.
The present invention compared with prior art has the following advantages: 1. and simple in structure, be easy to workman's operation.2. pick-up unit comprises control system (controller PLC), and warning system can accurately be judged testing result through warning system.3. applicable to different size, difform retaining valve sebific duct is widely used.4. a touching switch can be accomplished malleation unlatching and two detections of negative pressure leakage simultaneously, and intelligent degree is high, can use at the sebific duct business enterprise expand.
Description of drawings
Fig. 1: block diagram;
Fig. 2: structural representation;
Fig. 3: detect operation process chart.
Embodiment
Present embodiment is that retaining valve sebific duct malleation is opened and the operation of negative pressure Leak Detection.The detection work flow is as shown in Figure 3: before detection starts, import malleation opening process detected parameters by the man-machine interface touch screen: malleation charged pressure, pressurising ultimate value (control source of the gas stability), unlatching setting value, opening time; Import negative pressure leakage process detected parameters again: negative pressure charged pressure, pressurising ultimate value (control source of the gas stability), pressure limit value, dwell time.
At first import malleation and open and negative pressure leakage process detected parameters, with tested sebific duct forward cut-in pressure sensor, the other end blocks.The open operation button, retaining valve forward open detection starts.Open the loop by air supply system to forward and charge into malleation, in the pressurising time, pressure changes to the pressurising ultimate value, and alarm alarm pressurising is unusual; In the pressurising time, sebific duct pressure drops to the unlatching setting value, proves the unlatching of sebific duct forward, detects and opens required time; Exceed the pressurising time, sebific duct pressure does not drop to the unlatching setting value, and the sebific duct forward is not opened, and the alarm alarm detects not to be passed through.Alarm is not unusual like the forward open detection, and then the negative pressure Leak Detection starts voluntarily.Leak the loop forward by air supply system to negative pressure and charge into negative pressure, in the pressurising time, pressure changes to the pressurising ultimate value, and warning system alarm pressurising is unusual; In the dwell time, sebific duct pressure drops to pressure limit value, proves the leakage of sebific duct negative pressure, and the warning system alarm detects not to be passed through; Dwell time arrives, the force value after the pressure transducer record descends, and controller PLC is setting value relatively, meets the testing setup scope, and it is qualified to detect, through detecting.Detect like the need lower whorl, only need to change tested sebific duct, open operation button again.
The sebific duct internal diameter is the retaining valve sebific duct malleation open detection of Φ 9, requires retaining valve after pressure reduces 4KPa, opens in the 1s.Charge into 4KPa pressurized air by the input screen input, the pressurising ultimate value is 3.6～4.4KPa, and the unlatching setting value is 0.5KPa, and the opening time is 1s;
The sebific duct internal diameter is the retaining valve sebific duct negative pressure Leak Detection of Φ 9, requires retaining valve under the pressure of-80KPa, pressurize 15s, and pressure reduces less than 0.5KPa.Charging into-80KPa pressurized air by input screen input, the pressurising ultimate value is-80.02～-79.98KPa, pressure limit value is-79.5KPa that the dwell time is 15s.
The invention provides the intelligent device of a kind of retaining valve sebific duct malleation unlatching and negative pressure Leak Detection; This apparatus structure is simple; Visual input system is convenient to workman's operation; Improved work efficiency, make retaining valve sebific duct malleation open and negative pressure Leak Detection process fast, efficiently, accomplish accurately.
Claims (3)
1. a retaining valve sebific duct malleation is opened and the negative pressure leak detecting device, it is characterized in that comprising that malleation is opened and negative pressure is leaked two test loops; Malleation is opened the malleation charged pressure is realized in the loop by malleation pressure regulator valve 1 control; Negative pressure is leaked the loop and is adopted vacuum generator 2 to produce negative pressure, is realized the control of negative pressure charged pressure again by negative pressure pressure regulator valve 3; Article two, parallel connection is realized by solenoid valve 4 control loop switches in the loop, to prevent two phase mutual interference between the loop, can carry out malleation separately and open and negative pressure Leak Detection function.
2. the retaining valve sebific duct malleation of claim 1 is opened and negative pressure leak detecting device method of operating; It is characterized in that; Pressure transducer links to each other with an end of tested sebific duct, and the force value in controller PLC transmits tested sebific duct is when controller PLC thinks that tested sebific duct forward does not have unlatching or negative pressure leakage; Issue instructions to alarm, accomplish alarm by alarm.
3. method as claimed in claim 2 is characterized in that concrete grammar is following:
At first import malleation and open and negative pressure leakage process detected parameters, with tested sebific duct forward cut-in pressure sensor, the other end blocks; The open operation button, retaining valve forward open detection starts; Open the loop by air supply system to forward and charge into malleation, in the pressurising time, pressure changes to the pressurising ultimate value, and alarm alarm pressurising is unusual; In the pressurising time, sebific duct pressure drops to the unlatching setting value, proves the unlatching of sebific duct forward, detects and opens required time; Exceed the pressurising time, sebific duct pressure does not drop to the unlatching setting value, and the sebific duct forward is not opened, and the alarm alarm detects not to be passed through; Alarm is not unusual like the forward open detection, and then the negative pressure Leak Detection starts voluntarily; Leak the loop forward by air supply system to negative pressure and charge into negative pressure, in the pressurising time, pressure changes to the pressurising ultimate value, and warning system alarm pressurising is unusual; In the dwell time, sebific duct pressure drops to pressure limit value, proves the leakage of sebific duct negative pressure, and the warning system alarm detects not to be passed through; Dwell time arrives, the force value after the pressure transducer record descends, and controller PLC is setting value relatively, meets the testing setup scope, and it is qualified to detect, through detecting; Detect like the need lower whorl, only need to change tested sebific duct, open operation button again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110341714.5A CN102507109B (en) | 2011-11-02 | 2011-11-02 | One-way valve rubber tube positive pressure opening and negative pressure leakage detection device and operation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110341714.5A CN102507109B (en) | 2011-11-02 | 2011-11-02 | One-way valve rubber tube positive pressure opening and negative pressure leakage detection device and operation method |
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| CN102507109A true CN102507109A (en) | 2012-06-20 |
| CN102507109B CN102507109B (en) | 2014-03-19 |
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| CN201110341714.5A Expired - Fee Related CN102507109B (en) | 2011-11-02 | 2011-11-02 | One-way valve rubber tube positive pressure opening and negative pressure leakage detection device and operation method |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335830A (en) * | 2013-06-24 | 2013-10-02 | 武汉亚普汽车塑料件有限公司 | Automobile fuel tank valve function testing device |
| CN104019973A (en) * | 2014-06-12 | 2014-09-03 | 珠海格力电器股份有限公司 | Detection device and method for valve plate spring of refrigerant filter |
| CN104048798A (en) * | 2014-06-20 | 2014-09-17 | 四川长虹电器股份有限公司 | One-way valve leakage detection method and air conditioner |
| CN104075859A (en) * | 2014-06-26 | 2014-10-01 | 深圳市瑞必达科技有限公司 | Switching mode power supply waterproof tester and testing method of switching mode power supply waterproof tester |
| CN104422568A (en) * | 2013-09-03 | 2015-03-18 | 北京谊安医疗系统股份有限公司 | Expiratory valve leakage detection method and detection device for respiration circuit |
| CN105424299A (en) * | 2016-01-08 | 2016-03-23 | 四川省绵阳西南自动化研究所 | Tightness detection device |
| CN105509978A (en) * | 2015-12-29 | 2016-04-20 | 东方宏海新能源科技发展有限公司 | Testing device and testing method for embedded-mounted check valve |
| 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 |
| CN109506924A (en) * | 2018-12-27 | 2019-03-22 | 宁波加凯汽车部件有限公司 | Coolant liquid pot lid detection device and its detection method |
| CN110392544A (en) * | 2017-03-09 | 2019-10-29 | 奥林巴斯株式会社 | The leak detection processing method of endoscopic system and endoscope |
| CN110398353A (en) * | 2019-06-20 | 2019-11-01 | 平湖康弗莱尔汽车发动机系统有限公司 | The combined test stand of vehicle turbine breather cheek valve |
| CN110630589A (en) * | 2019-10-15 | 2019-12-31 | 宁波海宏液压有限公司 | Automatic test system and method for hydraulic check valve |
| CN111380659A (en) * | 2020-03-20 | 2020-07-07 | 中国北方车辆研究所 | Airtightness testing device and method for power battery water cooling system |
| CN111387831A (en) * | 2020-04-29 | 2020-07-10 | 珠海格力电器股份有限公司 | Cooking utensil and self-checking method thereof |
| CN111912615A (en) * | 2020-08-28 | 2020-11-10 | 格力电器（武汉）有限公司 | Check valve testing device |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335830A (en) * | 2013-06-24 | 2013-10-02 | 武汉亚普汽车塑料件有限公司 | Automobile fuel tank valve function testing device |
| CN104422568A (en) * | 2013-09-03 | 2015-03-18 | 北京谊安医疗系统股份有限公司 | Expiratory valve leakage detection method and detection device for respiration circuit |
| CN104019973A (en) * | 2014-06-12 | 2014-09-03 | 珠海格力电器股份有限公司 | Detection device and method for valve plate spring of refrigerant filter |
| CN104048798A (en) * | 2014-06-20 | 2014-09-17 | 四川长虹电器股份有限公司 | One-way valve leakage detection method and air conditioner |
| CN104075859A (en) * | 2014-06-26 | 2014-10-01 | 深圳市瑞必达科技有限公司 | Switching mode power supply waterproof tester and testing method of switching mode power supply waterproof tester |
| CN105509978A (en) * | 2015-12-29 | 2016-04-20 | 东方宏海新能源科技发展有限公司 | Testing device and testing method for embedded-mounted check valve |
| CN105424299A (en) * | 2016-01-08 | 2016-03-23 | 四川省绵阳西南自动化研究所 | Tightness detection device |
| CN110392544B (en) * | 2017-03-09 | 2022-01-28 | 奥林巴斯株式会社 | Endoscope system, leak detection processing method, and leak detection processing device |
| CN110392544A (en) * | 2017-03-09 | 2019-10-29 | 奥林巴斯株式会社 | The leak detection processing method of endoscopic system and endoscope |
| 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 |
| CN109506924A (en) * | 2018-12-27 | 2019-03-22 | 宁波加凯汽车部件有限公司 | Coolant liquid pot lid detection device and its detection method |
| CN109506924B (en) * | 2018-12-27 | 2020-12-25 | 宁波加凯汽车部件有限公司 | Cooling liquid pot cover detection device and detection method thereof |
| CN110398353A (en) * | 2019-06-20 | 2019-11-01 | 平湖康弗莱尔汽车发动机系统有限公司 | The combined test stand of vehicle turbine breather cheek valve |
| CN110630589A (en) * | 2019-10-15 | 2019-12-31 | 宁波海宏液压有限公司 | Automatic test system and method for hydraulic check valve |
| CN111380659A (en) * | 2020-03-20 | 2020-07-07 | 中国北方车辆研究所 | Airtightness testing device and method for power battery water cooling system |
| CN111387831A (en) * | 2020-04-29 | 2020-07-10 | 珠海格力电器股份有限公司 | Cooking utensil and self-checking method thereof |
| CN111387831B (en) * | 2020-04-29 | 2021-09-14 | 珠海格力电器股份有限公司 | Cooking utensil and self-checking method thereof |
| CN111912615A (en) * | 2020-08-28 | 2020-11-10 | 格力电器（武汉）有限公司 | Check valve testing device |
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