CN205138771U - Detection apparatus for constant pressure valve - Google Patents
Detection apparatus for constant pressure valve Download PDFInfo
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- CN205138771U CN205138771U CN201520861586.0U CN201520861586U CN205138771U CN 205138771 U CN205138771 U CN 205138771U CN 201520861586 U CN201520861586 U CN 201520861586U CN 205138771 U CN205138771 U CN 205138771U
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- solenoid valve
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Abstract
The utility model discloses a detection apparatus for constant pressure valve, including detecting the platform, detect the bench and install detection fix tool table, operating panel respectively, last master switch, low -pressure reducing valve, high -pressure relief pressure valve, the display screen installed respectively of operating panel. A detection apparatus for constant pressure valve, its valve ability of opening that can detect the pressure valve simultaneously with close valve internal leakage volume, and the testing process is simple, it is high to detect the rate of accuracy.
Description
Technical field
The utility model relates to a kind of pick-up unit of constant pressure valve.
Background technology
Because of need of production, air-cooled heat pump unit, the freezing unit (cryogenic system) that all will run throughout the year, handpiece Water Chilling Units (air-conditioning system), often can run into cold start-up situation because of reasons such as weather conditions.During cold start-up, because the condensing temperature of system is too low, after compressor start, the high-pressure side pressure of system does not increase, and compressor high and low pressure side can not set up enough height pressure reduction, and compressor can be caused to load; Compressor oil-supplying is not enough, compressor may because lubrication, cooling is not enough and badly damaged compressor.As system uses constant pressure valve, after compressor start, compressor can be made at short notice to set up rapidly enough height pressure reduction, and then it being smooth and easy to ensure that compressor displacement regulating loads, ensureing that compressor does not cause harmful effect because losing oil.Constant pressure valve, with non-return valve effect, when the compressor is shut down, can cut off rapidly compressor and be connected with gas exhaust piping, prevent gases at high pressure from passing back into compressor, effectively avoid compressor to reverse for a long time.Constant pressure valve needs the valve opening ability of pressure valve and closes valve internal leakage and check respectively before dispatching from the factory, but current used checkout equipment its all can only singlely detect, and testing process is complicated, and Detection accuracy is low.
Utility model content
The purpose of this utility model is the pick-up unit providing a kind of constant pressure valve, its can simultaneously detected pressures valve valve opening ability and close valve internal leakage, and testing process is simple, and Detection accuracy is high.
In order to achieve the above object, the technical solution of the utility model is:
A pick-up unit for constant pressure valve, comprises monitor station, described monitor station is separately installed with testing product fixing tool platform, guidance panel, described guidance panel is separately installed with master switch, low-pressure relief valve, high-pressure pressure-reducing valve, display screen.
Described guidance panel is also separately installed with low pressure gauge, low pressure pilot lamp, blowout-back pressure gauge, HT pilot, spinner-type flowmeter.
Low-pressure gas source inlet port, high-pressure air source inlet port is separately installed with in described monitor station, wherein said low-pressure gas source inlet port is connected with the first tensimeter, described first tensimeter is connected with the first solenoid valve, described first solenoid valve is connected with first sensor, and described first sensor is connected with solenoid valve; Described high-pressure air source inlet port is connected with the second tensimeter, and described second tensimeter is connected with high-pressure solenoid valve, and described high-pressure solenoid valve is connected with high pressure sensor, and described high pressure sensor is connected with solenoid valve; Described solenoid valve is connected with the second sensor by after testing product fixing tool platform, and described second sensor is connected with the second solenoid valve, the 3rd solenoid valve respectively, and described second solenoid valve is connected with exhaust box, and described 3rd solenoid valve is connected with flowmeter.
The beneficial effects of the utility model are: a kind of pick-up unit of constant pressure valve, its can simultaneously detected pressures valve valve opening ability and close valve internal leakage, and testing process is simple, and Detection accuracy is high.
Accompanying drawing explanation
Fig. 1 is external structure schematic diagram of the present utility model;
Fig. 2 is inner schematic diagram of the present utility model.
Embodiment
Embodiment 1
A kind of pick-up unit of constant pressure valve as shown in Figure 1 and Figure 2, comprise monitor station 40, described monitor station 40 is separately installed with testing product fixing tool platform 41, guidance panel 41, described guidance panel 41 is separately installed with master switch 42, low-pressure relief valve 48, high-pressure pressure-reducing valve 49, display screen 39.Described guidance panel 41 is also separately installed with low pressure gauge 43, low pressure pilot lamp 44, blowout-back pressure gauge 45, HT pilot 46, spinner-type flowmeter 47.
Low-pressure gas source inlet port 50, high-pressure air source inlet port 51 is separately installed with in described monitor station 40, wherein said low-pressure gas source inlet port 50 is connected with the first tensimeter 52, described first tensimeter 52 is connected with the first solenoid valve 53, described first solenoid valve 53 is connected with first sensor 54, and described first sensor 54 is connected with solenoid valve 55; Described high-pressure air source inlet port 51 is connected with the second tensimeter 56, and described second tensimeter 56 is connected with high-pressure solenoid valve 57, and described high-pressure solenoid valve 57 is connected with high pressure sensor 58, and described high pressure sensor 58 is connected with solenoid valve 55; Described solenoid valve 55 is connected with the second sensor 59 by after testing product fixing tool platform 41, described second sensor 59 is connected with the second solenoid valve 60, the 3rd solenoid valve 61 respectively, described second solenoid valve 60 is connected with exhaust box 62, and described 3rd solenoid valve 61 is connected with flowmeter 63.
A detection method for the pick-up unit of constant pressure valve, comprises the steps:
(1) constant pressure valve valve opening ability is tested
First low-pressure relief valve 48 is opened and is adjusted to 0.36MPa, then low pressure gauge 43 shows 0.36MPa, then the first solenoid valve 53 is opened, then gas enters air drum, and then air drum first sensor 54 works and shows pressure 0.36MPa, then tests constant pressure valve valve opening, then constant pressure valve outlet side second sensor 59 work display pressure raises, then high-pressure solenoid valve 57 is opened, and is finally vented, then workpiece valve opening ability is qualified; If low-pressure relief valve 48 is opened be adjusted to 0.36MPa, then low pressure gauge 43 shows 0.36MPa, then the first solenoid valve 53 is opened, then gas enters air drum, and then air drum first sensor 54 works and shows pressure 0.36MPa, then tests constant pressure valve valve opening, then test constant pressure valve outlet side pressure second sensor 59 work display pressure not raise, then warning horn sounds, then workpiece is defective, and cracking pressure is too high; If low-pressure relief valve 48 is opened be adjusted to 0.36MPa, then low pressure gauge 43 shows 0.36MPa, then the first solenoid valve 53 is opened, then gas enters air drum, and then air drum first sensor 54 works and shows pressure 0.2MPa, then tests constant pressure valve valve opening, then constant pressure valve outlet side second sensor 59 work display pressure raises, then warning horn sounds, then workpiece is defective, and cracking pressure is too low;
(2) test constant pressure valve and close valve internal leakage
First low-pressure relief valve opens modulation 0.36MPa, low pressure gauge display 0.36MPa, first solenoid valve is opened, gas enters air drum, air drum first sensor work display pressure 0.36MPa, test constant pressure valve valve opening, constant pressure valve outlet side second working sensor display pressure raises, high-pressure solenoid valve is opened, exhaust, second solenoid valve is opened and is let out gas storage cylinder pressure, air drum first sensor work display pressure 0.30MPa, high-pressure solenoid valve is closed, second closed electromagnetic valve, test constant pressure valve closes valve, 3rd solenoid valve is opened, flowmeter is by spinner-type flowmeter work display flow value, internal leakage value is in range of set value, workpiece is qualified, if low-pressure relief valve opens modulation 0.36MPa, low pressure gauge display 0.36MPa, first solenoid valve is opened, gas enters air drum, air drum first sensor work display pressure 0.36MPa, test constant pressure valve valve opening, constant pressure valve outlet side second working sensor display pressure raises, high-pressure solenoid valve is opened, exhaust, second solenoid valve is opened and is let out gas storage cylinder pressure, air drum first sensor work display pressure 0.30MPa, high-pressure solenoid valve is closed, second closed electromagnetic valve, test constant pressure valve closes valve, 3rd solenoid valve is opened, flowmeter is by spinner-type flowmeter work display flow value, internal leakage value exceeds in range of set value, warning horn sounds, workpiece internal leakage exceeds standard defective.
(3) constant pressure valve durability test is tested
First make-and-break time in constant pressure valve of 0.43MPa test gas and break-make number of times is set, then detect according to the make-and-break time of setting and break-make number of times in constant pressure valve, defective then alarm, qualified, continue test until the break-make number of times of setting has all been surveyed.
The pick-up unit of a kind of constant pressure valve of the present embodiment, its can simultaneously detected pressures valve valve opening ability and close valve internal leakage, and testing process is simple, and Detection accuracy is high.
Claims (3)
1. the pick-up unit of a constant pressure valve, it is characterized in that: comprise monitor station (40), described monitor station (40) is separately installed with testing product fixing tool platform (41), guidance panel (41), described guidance panel (41) is separately installed with master switch (42), low-pressure relief valve (48), high-pressure pressure-reducing valve (49), display screen (39).
2. the pick-up unit of a kind of constant pressure valve according to claim 1, is characterized in that: described guidance panel (41) is also separately installed with low pressure gauge (43), low pressure pilot lamp (44), blowout-back pressure gauge (45), HT pilot (46), spinner-type flowmeter (47).
3. the pick-up unit of a kind of constant pressure valve according to claim 1, it is characterized in that: in described monitor station (40), be separately installed with low-pressure gas source inlet port (50), high-pressure air source inlet port (51), wherein said low-pressure gas source inlet port (50) is connected with the first tensimeter (52), described first tensimeter (52) is connected with the first solenoid valve (53), described first solenoid valve (53) is connected with first sensor (54), and described first sensor (54) is connected with solenoid valve (55); Described high-pressure air source inlet port (51) is connected with the second tensimeter (56), described second tensimeter (56) is connected with high-pressure solenoid valve (57), described high-pressure solenoid valve (57) is connected with high pressure sensor (58), and described high pressure sensor (58) is connected with solenoid valve (55); Described solenoid valve (55) is connected with the second sensor (59) afterwards by testing product fixing tool platform (41), described second sensor (59) is connected with the second solenoid valve (60), the 3rd solenoid valve (61) respectively, described second solenoid valve (60) is connected with exhaust box (62), and described 3rd solenoid valve (61) is connected with flowmeter (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520861586.0U CN205138771U (en) | 2015-11-02 | 2015-11-02 | Detection apparatus for constant pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520861586.0U CN205138771U (en) | 2015-11-02 | 2015-11-02 | Detection apparatus for constant pressure valve |
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| Publication Number | Publication Date |
|---|---|
| CN205138771U true CN205138771U (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520861586.0U Expired - Fee Related CN205138771U (en) | 2015-11-02 | 2015-11-02 | Detection apparatus for constant pressure valve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352711A (en) * | 2015-11-02 | 2016-02-24 | 新昌县利永达制冷机械有限公司 | Constant pressure valve and detection device and detection method thereof |
| CN106768058A (en) * | 2016-12-30 | 2017-05-31 | 武汉泰安晶液态金属科技有限公司 | One kind shut-off valve test device |
| CN107271172A (en) * | 2017-07-20 | 2017-10-20 | 浙江正泰汽车科技有限公司 | Pressure switch detection device and its detection method |
| CN109186721A (en) * | 2018-09-08 | 2019-01-11 | 芜湖乐佳电器有限公司 | A kind of water level sensor leak detection method |
-
2015
- 2015-11-02 CN CN201520861586.0U patent/CN205138771U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352711A (en) * | 2015-11-02 | 2016-02-24 | 新昌县利永达制冷机械有限公司 | Constant pressure valve and detection device and detection method thereof |
| CN105352711B (en) * | 2015-11-02 | 2018-03-02 | 浙江利永达制冷机械有限公司 | A kind of constant pressure valve and its detection means and detection method |
| CN106768058A (en) * | 2016-12-30 | 2017-05-31 | 武汉泰安晶液态金属科技有限公司 | One kind shut-off valve test device |
| CN107271172A (en) * | 2017-07-20 | 2017-10-20 | 浙江正泰汽车科技有限公司 | Pressure switch detection device and its detection method |
| CN109186721A (en) * | 2018-09-08 | 2019-01-11 | 芜湖乐佳电器有限公司 | A kind of water level sensor leak detection method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20191102 |
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| CF01 | Termination of patent right due to non-payment of annual fee |