CN204831734U - Electromechanical valve gas tightness intellectual detection system equipment - Google Patents
Electromechanical valve gas tightness intellectual detection system equipment Download PDFInfo
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- CN204831734U CN204831734U CN201520547586.3U CN201520547586U CN204831734U CN 204831734 U CN204831734 U CN 204831734U CN 201520547586 U CN201520547586 U CN 201520547586U CN 204831734 U CN204831734 U CN 204831734U
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Abstract
The utility model discloses an electromechanical valve gas tightness intellectual detection system equipment, including the pressure collecting device, analog/digital device, a stroke solenoid valve for fixing the equipment of awaiting measuring, be used for to the pressor solenoid valve of aerifing of the equipment of awaiting measuring, time -recorder and microcontroller, the signal output part of pressure collecting device and analog/digital device's signal input part are connected, analog/digital device's signal output part and microcontroller's signal input part are connected, microcontroller's control output is connected with stroke solenoid valve and the control input end of aerifing the solenoid valve respectively, microcontroller still is connected with the time -recorder. The utility model discloses can realize the automated inspection of electromechanical valve gas tightness, need not artifical judgement, can guarantee the accuracy of testing result.
Description
Technical field
The utility model relates to air-leakage test technical field, particularly relates to electromechanical valve impermeability intelligent detection equipment.
Background technology
Existing gas meter, flow meter electromechanical valve air-leakage test mode mostly adopts U-tube to detect the mode of electromechanical valve leakage value, judges electromechanical valve leakage value by the liquid level change on U-tube both sides within a certain period of time.Whether this kind of mode needs the liquid position on manual observation U-tube both sides to change, calculate leakage value and meet the demands.But existing electromechanical valve detection mode has the following disadvantages:
(1) by artificial judgment electromechanical valve leakage value, testing result is comparatively large by the impact of human factor, can not ensure the accuracy of testing result well, and then affect product quality;
(2) one man operation checkout equipment, is unfavorable for enhancing productivity.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides electromechanical valve impermeability intelligent detection equipment, can realize the bubble-tight automatic detection of electromechanical valve, without the need to artificial judgment, thus ensures the accuracy of testing result.
The purpose of this utility model is achieved through the following technical solutions: electromechanical valve impermeability intelligent detection equipment, comprise pressure acquisition device, analog-digital commutator, for the stroke electromagnetic valve of fixing Devices to test, for the inflation solenoid valve pressurizeed to Devices to test, timer and microcontroller, the signal output part of pressure acquisition device is connected with the signal input part of analog-digital commutator, the signal output part of analog-digital commutator is connected with the signal input part of microcontroller, the control output end of microcontroller is connected with stroke electromagnetic valve and the control input end of inflating solenoid valve respectively, microcontroller is also connected with timer.
Further, also comprise display device, display device is connected with microcontroller.
Further, also comprise temperature sensor, temperature sensor is connected with microcontroller.
Further, also comprise for showing test results the first qualified pilot lamp and for the second qualified pilot lamp that shows test results, the first pilot lamp is all connected with microcontroller with the second pilot lamp.
The beneficial effects of the utility model are:
(1) the utility model can realize the bubble-tight automatic detection of electromechanical valve, without the need to artificial judgment, avoids the impact of human factor on testing result, improves the accuracy of testing result;
(2) first pilot lamp and the second pilot lamp can direct visual display detecting results;
(3) temperature sensor gathers the temperature data of surrounding environment, and microcontroller, according to this temperature data compensate for ambient temperature, eliminates the impact of A/D conversion accuracy by variation of ambient temperature.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the utility model electromechanical valve impermeability intelligent detection equipment;
Fig. 2 realizes block diagram when four electromechanical valve detect simultaneously.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, electromechanical valve impermeability intelligent detection equipment, comprise pressure acquisition device, analog-digital commutator, for the stroke electromagnetic valve of fixing Devices to test, inflation solenoid valve, timer and the microcontroller for pressurizeing to Devices to test, the signal output part of pressure acquisition device is connected with the signal input part of analog-digital commutator, the signal output part of analog-digital commutator is connected with the signal input part of microcontroller, the control output end of microcontroller is connected with stroke electromagnetic valve and the control input end of inflating solenoid valve respectively, and microcontroller is also connected with timer.
Described pressure acquisition device comprises pressure transducer, and the pressure signal of the 0 ~ 20KPa collected is converted to the current signal of 4 ~ 20mA by pressure transducer, then 1 μ A=1.25Pa; Described analog-digital commutator comprises the AD7705 modulus conversion chip of 16, the then current signal correspondence 0 ~ 65535dpi of 4 ~ 20mA, then 1 μ A ≈ 4dpi ≈ 1.25Pa, therefore can identify the subtle change of 2Pa pressure in the scope of 0 ~ 20KPa, make the utility model have very high accuracy of detection.The simulating signal input of analog-digital commutator adopts the mode of Differential Input, can reduce the impact of external interference signals on current signal, improve analog-to-digital accuracy.
Further, also comprise display device, display device is connected with microcontroller.Display device for setting parameters such as stopping charge pressure value, leak detection time and air pressure leakage value, and shows testing result.
Further, also comprise temperature sensor, temperature sensor is connected with microcontroller.Temperature sensor collecting temperature data, and the temperature number collected is sent to microcontroller, microcontroller, according to this temperature data compensate for ambient temperature, eliminates the impact of A/D conversion accuracy by variation of ambient temperature.
Further, also comprise for showing test results the first qualified pilot lamp and for the second qualified pilot lamp that shows test results, the first pilot lamp is all connected with microcontroller with the second pilot lamp.
Utility model works principle is: Devices to test fixed by stroke electromagnetic valve, and inflation solenoid valve pressurizes to Devices to test; Pressure acquisition device gathers the pressure signal of Devices to test, and this pressure signal is sent to analog-digital commutator; Described pressure signal is converted to digital signal by analog-digital commutator, and this digital signal is sent to microcontroller; Microcontroller calculates the force value of Devices to test, when the force value of Devices to test is more than or equal to default stopping charge pressure value, inflation solenoid valve stops to Devices to test inflation, and timer starts timing, and the force value of now Devices to test is designated as the first force value; The time of timer record is when reaching the leak detection time, and the force value of now Devices to test is designated as the second force value, and microcontroller calculates the pressure difference value of the first force value and the second force value; The more described pressure difference value of microcontroller and the gas pressure leak value preset: if pressure difference value is less than gas pressure leak value, then testing result is qualified, and the first pilot lamp is lighted; If pressure difference value is greater than gas pressure leak value, then testing result is defective, and the second pilot lamp is lighted; Stroke electromagnetic valve release Devices to test, time device will record time reset.
The utility model detects while can also realizing multiple stage electromechanical valve, as shown in Figure 2, pressure difference detection device comprises microcontroller, display device and analog-digital commutator, indicating device comprises the first pilot lamp and the second pilot lamp, electromagnetic valve device comprises stroke electromagnetic valve and inflation solenoid valve, first pressure difference detection device respectively with the first pressure acquisition device, first timer, first electromagnetic valve device is connected with the first indicating device, second pressure difference detection device respectively with the second pressure acquisition device, second timer, second electromagnetic valve device is connected with the second indicating device, 3rd pressure difference detection device respectively with the 3rd pressure acquisition device, 3rd timer, 3rd electromagnetic valve device is connected with the 3rd indicating device, 4th pressure difference detection device respectively with the 4th pressure acquisition device, 4th timer, 4th electromagnetic valve device is connected with the 4th indicating device.First pressure difference detection device is connected with the two ends of the first switch and second switch respectively, second pressure difference detection device is connected with the two ends of the first switch and the 3rd switch respectively, 3rd pressure difference detection device is connected with the two ends of the first switch and the 4th switch respectively, and the 4th pressure difference detection device is connected with the two ends of the first switch and the 5th switch respectively.The air-leakage test that the first pressure difference detection device, the second pressure difference detection device, the 3rd pressure difference detection device and the 4th pressure difference detection device carry out electromechanical valve simultaneously can be controlled by the first switch, also control separately the first pressure difference detection device by second switch, the second pressure difference detection device is controlled separately by the 3rd switch, control separately the 3rd pressure difference detection device by the 4th switch, control separately the 4th pressure difference detection device by the 5th switch.
Claims (4)
1. electromechanical valve impermeability intelligent detection equipment, it is characterized in that: comprise pressure acquisition device, analog-digital commutator, for the stroke electromagnetic valve of fixing Devices to test, for the inflation solenoid valve pressurizeed to Devices to test, timer and microcontroller, the signal output part of pressure acquisition device is connected with the signal input part of analog-digital commutator, the signal output part of analog-digital commutator is connected with the signal input part of microcontroller, the control output end of microcontroller is connected with stroke electromagnetic valve and the control input end of inflating solenoid valve respectively, microcontroller is also connected with timer.
2. electromechanical valve impermeability intelligent detection equipment according to claim 1, it is characterized in that: also comprise display device, display device is connected with microcontroller.
3. electromechanical valve impermeability intelligent detection equipment according to claim 1, it is characterized in that: also comprise temperature sensor, temperature sensor is connected with microcontroller.
4. electromechanical valve impermeability intelligent detection equipment according to claim 1, it is characterized in that: also comprise for showing test results the first qualified pilot lamp and for the second qualified pilot lamp that shows test results, the first pilot lamp is all connected with microcontroller with the second pilot lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520547586.3U CN204831734U (en) | 2015-07-24 | 2015-07-24 | Electromechanical valve gas tightness intellectual detection system equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520547586.3U CN204831734U (en) | 2015-07-24 | 2015-07-24 | Electromechanical valve gas tightness intellectual detection system equipment |
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| Publication Number | Publication Date |
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| CN204831734U true CN204831734U (en) | 2015-12-02 |
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| CN201520547586.3U Active CN204831734U (en) | 2015-07-24 | 2015-07-24 | Electromechanical valve gas tightness intellectual detection system equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067202A (en) * | 2015-07-24 | 2015-11-18 | 成都秦川科技发展有限公司 | Electromechanical valve tightness intelligent detection device and detection method thereof |
| CN112014035A (en) * | 2020-07-30 | 2020-12-01 | 上腾科技(广州)有限公司 | Micro embedded type sealing performance detection device, system and detection method thereof |
-
2015
- 2015-07-24 CN CN201520547586.3U patent/CN204831734U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067202A (en) * | 2015-07-24 | 2015-11-18 | 成都秦川科技发展有限公司 | Electromechanical valve tightness intelligent detection device and detection method thereof |
| CN105067202B (en) * | 2015-07-24 | 2018-12-04 | 成都秦川物联网科技股份有限公司 | Electromechanical valve air-tightness intelligent detection equipment and its detection method |
| CN112014035A (en) * | 2020-07-30 | 2020-12-01 | 上腾科技(广州)有限公司 | Micro embedded type sealing performance detection device, system and detection method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610199 Longquanyi, Sichuan Province Industrial Park licensing Patentee after: Chengdu Qinchuan networking Polytron Technologies Inc Address before: 610199 Longquanyi, Sichuan Province Industrial Park licensing Patentee before: Chengdu Taichuan Technology Development Co., Ltd. |