CN104729840A - Safety valve testing device and testing method - Google Patents
Safety valve testing device and testing method Download PDFInfo
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- CN104729840A CN104729840A CN201310724503.9A CN201310724503A CN104729840A CN 104729840 A CN104729840 A CN 104729840A CN 201310724503 A CN201310724503 A CN 201310724503A CN 104729840 A CN104729840 A CN 104729840A
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- safety valve
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- 238000012360 testing method Methods 0.000 title claims abstract description 55
- 238000012956 testing procedure Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 6
- 230000002950 deficient Effects 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Abstract
The invention provides a safety valve testing device and testing method. The safety valve testing device is used for testing a safety valve, and comprises an air source, a solenoid valve, a first pressure sensor and a second pressure sensor, the air source is communicated with an air inlet of the safety valve, the solenoid valve is arranged between the air source and the air inlet of the safety valve, the first pressure sensor is arranged on a pressure outer leaking opening of the safety valve, and the second pressure sensor is arranged on a pressure inner leaking opening of the safety valve. The device replaces manpower to fast test the safety valve, efficiency is improved by many times, the performance of the safety valve is effectively monitored, the testing result is automatically recorded and intelligently judged, product quality is improved, and accuracy is ensured.
Description
Technical field
The present invention relates to air conditioner and water heater field, especially, relate to a kind of safety valve testing device and method of testing.
Background technology
In hot water machine core component attemperater, safety valve is as the safety attachment of its indispensability, and it lets out opening pressure in relating to and can the opening pressure performance that leak determine it and normally use.To this, inspection party is in the face of inside and outside relieving characteristics is as crucial item controlled, and existing detection method falls behind, and each detect the opening pressure that leaks also need closed with screw thread sealing cap in let out end, and once can only examine one, complex steps, and operating personnel's intensity is large, checkability is low, by manual read's tensimeter data, artificial judgment result, there is human factor, do not ensure 100% testing result.
Summary of the invention
The object of the invention is to provide a kind of safety valve testing device and method of testing, and to solve, manual testing's intensity is large, accuracy is low, inefficient technical matters.
For achieving the above object, the invention provides a kind of safety valve testing device, for test safety valve, safety valve testing device comprises: source of the gas, and source of the gas is connected with the air intake opening of safety valve; Solenoid valve, is arranged between source of the gas and the air intake opening of safety valve; First pressure transducer, is arranged on the outer drain port of pressure of safety valve; Second pressure transducer, in the pressure being arranged on safety valve on drain port.
Further, safety valve testing device also comprises controller, and controller controls the admission pressure of source of the gas.
Further, source of the gas comprises the source of the gas of multiple pressure specification.
Further, solenoid valve is provided with between multiple source of the gas and air intake opening.
Further, controller comprises Analog input mModule and the programmable controller PLC of electrical connection mutually.
Further, Analog input mModule is electrically connected with the first pressure transducer and the second pressure transducer respectively.
Further, programmable controller PLC is electrically connected with solenoid valve.
The invention provides a kind of safety valve testing method, source of the gas is to air intake opening air feed; Detect the pressure output value P1 of the first pressure transducer that drain port outer with the pressure of safety valve is connected, if in P1 pressure release power outside setting range, then the pressure test that leaks is qualified, otherwise then reports to the police; Detect the pressure output value P2 of the second pressure transducer be connected with drain port in the pressure of safety valve, if P2 is in interior pressure release power setting range, then in, pressure release Force meansurement is qualified, otherwise then reports to the police; Leak pressure test and interior pressure release Force meansurement all qualified in specification product.
Further, above-mentioned test is carried out in the source of the gas circulation changing different air pressure after above-mentioned testing procedure.
Further, the air pressure of source of the gas comprises 0.1MP, 0.2MP, 0.6MP and 0.7MP.
The present invention has following beneficial effect:
This device replaces manually testing fast safety valve, and efficiency improves several times, effectively monitors the performance of safety valve, and automatically records intelligent decision test result, improves the quality of products and guarantees accuracy.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to safety valve testing device of the present invention.
Reference numeral in accompanying drawing is as follows: 10, safety valve; 20, source of the gas; 30, solenoid valve; 41, the first pressure transducer; 42, the second pressure transducer; 11, air intake opening; 12, the outer drain port of pressure; 13, drain port in pressure.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
See Fig. 1, according to safety valve testing device of the present invention, for test safety valve 10, safety valve testing device comprises: source of the gas 20, and source of the gas 20 is connected with the air intake opening 11 of safety valve 10; Solenoid valve 30, between the air intake opening 11 being arranged on source of the gas 20 and safety valve 10; First pressure transducer 41, is arranged on the outer drain port 12 of pressure of safety valve 10; Second pressure transducer 42, in the pressure being arranged on safety valve 10 on drain port 13.This device replaces manually testing fast safety valve, and efficiency improves several times, effectively monitors the performance of safety valve, and automatically records intelligent decision test result, improves the quality of products and guarantees accuracy.
See Fig. 1, safety valve testing device also comprises controller, and controller controls the admission pressure of source of the gas 20.Source of the gas 20 comprises the source of the gas of multiple pressure specification.Being provided with the bleed pressure exported respectively of four solenoid valves 30 in solenoid valve 30, figure between multiple source of the gas 20 and air intake opening 11 is 0.1MP, 0.2MP, 0.6MP and 0.7MP.
Controller comprises Analog input mModule and the programmable controller PLC of electrical connection mutually.Analog input mModule is electrically connected with the first pressure transducer 41 and the second pressure transducer 42 respectively.Programmable controller PLC is electrically connected with solenoid valve 30.
This device utilizes pressure transducer, Analog input mModule, elementary cell PLC controls, the devices such as basic circuit, adopt DC24V power module, for whole control circuit is powered, open setting source of the gas 20, solenoid valve 30 air inlet, carry out safety valve 10 to air intake opening 11 to test, utilize drain port 13 in the first detected pressures of high-accuracy pressure transducer, pressure exports analog quantity linear voltage through the second pressure transducer 42 and changes into digital signal to analog module, control algorithm is carried out through elementary cell PLC, be less than drain port 13 pressure 0.004MP in pressure, to be greater than in pressure drain port 13 pressure 0.1MP in this scope, automatic result of determination is qualified, as qualified in solenoid valve 30 air inlet given air intake opening 11 pressure, namely in pressure, the drain port 13 pressure leakage amount telltale lamp that exceeds standard is bright defective, man-machine interface autostore test result.The same solenoid of program automatic switchover air inlet 0.2MP, the outer drain port 12 of the first pressure transducer 41 open detection pressure.The same step of outward leakage completes detection by that analogy.
See Fig. 1, according to safety valve testing method of the present invention, source of the gas 20 is to air intake opening 11 air feed; Detect the pressure output value P2 of the second pressure transducer 42 be connected with drain port 13 in the pressure of safety valve 10, if P2 is in interior pressure release power setting range, then in, pressure release Force meansurement is qualified, otherwise then reports to the police; Detect the pressure output value P1 of the first pressure transducer 41 that drain port 12 outer with the pressure of safety valve 10 is connected, if in P1 pressure release power outside setting range, then the pressure test that leaks is qualified, otherwise then reports to the police; Interior pressure release Force meansurement is all qualified with the pressure test that leaks is specification product.
Above-mentioned test is carried out in the source of the gas circulation changing different air pressure after above-mentioned testing procedure.The air pressure of source of the gas 20 comprises 0.1MP, 0.2MP, 0.6MP and 0.7MP.Interior pressure release power setting range P2 >=0.004MP or P2≤0.1MP; Leak pressure setting scope P1 >=0.008MP or P1≤0.2MP.
1. plug in press observing and controlling case start man-machine interface and programmable controller PLC, analog module all electric.
2. set outer drain port 12 pressure 0.08MP, the 0.2MP of drain port 13 pressure 0.004MP, 0.1MP and pressure in the safety valve of water tank pressure on touch-screen and adjust source of the gas.
3. fixture places secure sample valve 10 Pen-down detection switch and detect that signal enabling is tested.
4.0.1MP solenoid valve air inlet is carried out safety valve 10 to air intake opening 11 and is tested.
5. utilize drain port 13 in the first detected pressures of high-accuracy pressure transducer,
6. pressure exports analog quantity linear voltage through the second pressure transducer 42 and changes into digital signal to analog module
7. carry out control algorithm through elementary cell PLC, be less than drain port 13 pressure 0.004MP in pressure, be greater than in pressure in drain port 13 pressure 0.1MP setting range, in automatic result of determination, pressure release power opens port is qualified,
8. as bright defective more than the setup parameter telltale lamp on 22 touch-screens in drain port in pressure 13 pressure leakage amount, man-machine interface autostore test result.
9. the same solenoid of program automatic switchover air inlet 0.2MP, the outer drain port 12 of the first pressure transducer 41 open detection pressure.Pressure exports analog quantity linear voltage and changes into digital signal through 36 pressure transducers that leak to analog module
10. carry out control algorithm through elementary cell PLC, be less than 34 and leak and open port pressure 0.008MP, be greater than 34 and leak and open in port pressure 0.2MP setting range, automatic result of determination leaks, and to open port be qualified to pressure,
11. leak that to open port pressure leakage rate bright defective more than the setup parameter telltale lamp on 22 touch-screens, man-machine interface autostore test result as 34.
12. other secure sample valves by that analogy above-mentioned steps complete detection.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
Easy to operate, the quick test of the present invention, intelligent decision result, stability are high, reliable.Once check multiple safety valve efficiency to improve several times simultaneously, effectively can monitor safety valve, improve the quality of products and guarantee accuracy.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a safety valve testing device, for test safety valve (10), is characterized in that, described safety valve testing device comprises: source of the gas (20), and described source of the gas (20) is connected with the air intake opening (11) of described safety valve (10);
Solenoid valve (30), between the described air intake opening (11) being arranged on described source of the gas (20) and described safety valve (10);
First pressure transducer (41), is arranged on the outer drain port (12) of pressure of described safety valve (10);
Second pressure transducer (42), in the pressure being arranged on described safety valve (10) on drain port (13).
2. safety valve testing device according to claim 1, is characterized in that, described safety valve testing device also comprises controller, and described controller controls the admission pressure of described source of the gas (20).
3. safety valve testing device according to claim 1, is characterized in that, described source of the gas (20) comprises the source of the gas of multiple pressure specification.
4. safety valve testing device according to claim 3, is characterized in that, is provided with solenoid valve (30) between multiple described sources of the gas (20) and described air intake opening (11).
5. safety valve testing device according to claim 2, is characterized in that, described controller comprises Analog input mModule and the programmable controller PLC of electrical connection mutually.
6. safety valve testing device according to claim 5, is characterized in that, described Analog input mModule is electrically connected with described first pressure transducer (41) and described second pressure transducer (42) respectively.
7. safety valve testing device according to claim 5, is characterized in that, described programmable controller PLC is electrically connected with described solenoid valve (30).
8. a safety valve testing method, is characterized in that,
Source of the gas (20) is to air intake opening (11) air feed;
Detect the pressure output value P1 of the first pressure transducer (41) that drain port (12) outer with the pressure of described safety valve (10) is connected, if in P1 pressure release power outside setting range, then the pressure test that leaks is qualified, otherwise then reports to the police;
Detect the pressure output value P2 of the second pressure transducer (42) be connected with drain port (13) in the pressure of safety valve (10), if P2 is in interior pressure release power setting range, then in, pressure release Force meansurement is qualified, otherwise then reports to the police;
Leak pressure test and interior pressure release Force meansurement all qualified in specification product.
9. safety valve testing method according to claim 8, is characterized in that, above-mentioned test is carried out in source of the gas (20) circulation changing different air pressure after above-mentioned testing procedure.
10. safety valve testing method according to claim 9, is characterized in that, the air pressure of described source of the gas (20) comprises 0.1MP, 0.2MP, 0.6MP and 0.7MP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310724503.9A CN104729840B (en) | 2013-12-24 | 2013-12-24 | Safety valve testing device and method of testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310724503.9A CN104729840B (en) | 2013-12-24 | 2013-12-24 | Safety valve testing device and method of testing |
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| Publication Number | Publication Date |
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| CN104729840A true CN104729840A (en) | 2015-06-24 |
| CN104729840B CN104729840B (en) | 2017-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310724503.9A Expired - Fee Related CN104729840B (en) | 2013-12-24 | 2013-12-24 | Safety valve testing device and method of testing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404379A (en) * | 2016-11-10 | 2017-02-15 | 安徽皖拓自动化有限公司 | Safety valve performance online detection device |
| CN109520722A (en) * | 2018-11-23 | 2019-03-26 | 格力电器（武汉）有限公司 | Safety valve relieving characteristics test macro and method |
| CN112729724A (en) * | 2020-12-30 | 2021-04-30 | 深圳市弗赛特科技股份有限公司 | Overflow valve calibration stand |
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| CN87204683U (en) * | 1987-10-12 | 1988-05-04 | 株洲硬质合金厂 | Tester for safety valve and pressure gauge |
| JP2001165812A (en) * | 1999-12-13 | 2001-06-22 | Hitachi Ltd | Safety valve test method and safety valve test apparatus |
| CN200978999Y (en) * | 2006-12-15 | 2007-11-21 | 曲毅 | Chemical container safety valve on-line detecting instrument |
| CN200982913Y (en) * | 2006-09-28 | 2007-11-28 | 比亚迪股份有限公司 | A detection device of secure valve start pressure |
| CN101329224A (en) * | 2008-07-21 | 2008-12-24 | 江南大学 | Safety valve checking method |
| CN102788686A (en) * | 2011-05-18 | 2012-11-21 | 上海天祥质量技术服务有限公司 | Battery core safety valve testing device and method |
| CN203629819U (en) * | 2013-12-24 | 2014-06-04 | 珠海格力电器股份有限公司 | Safety valve testing device |
-
2013
- 2013-12-24 CN CN201310724503.9A patent/CN104729840B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87204683U (en) * | 1987-10-12 | 1988-05-04 | 株洲硬质合金厂 | Tester for safety valve and pressure gauge |
| JP2001165812A (en) * | 1999-12-13 | 2001-06-22 | Hitachi Ltd | Safety valve test method and safety valve test apparatus |
| CN200982913Y (en) * | 2006-09-28 | 2007-11-28 | 比亚迪股份有限公司 | A detection device of secure valve start pressure |
| CN200978999Y (en) * | 2006-12-15 | 2007-11-21 | 曲毅 | Chemical container safety valve on-line detecting instrument |
| CN101329224A (en) * | 2008-07-21 | 2008-12-24 | 江南大学 | Safety valve checking method |
| CN102788686A (en) * | 2011-05-18 | 2012-11-21 | 上海天祥质量技术服务有限公司 | Battery core safety valve testing device and method |
| CN203629819U (en) * | 2013-12-24 | 2014-06-04 | 珠海格力电器股份有限公司 | Safety valve testing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404379A (en) * | 2016-11-10 | 2017-02-15 | 安徽皖拓自动化有限公司 | Safety valve performance online detection device |
| CN109520722A (en) * | 2018-11-23 | 2019-03-26 | 格力电器（武汉）有限公司 | Safety valve relieving characteristics test macro and method |
| CN112729724A (en) * | 2020-12-30 | 2021-04-30 | 深圳市弗赛特科技股份有限公司 | Overflow valve calibration stand |
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| CN104729840B (en) | 2017-11-14 |
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