CN213688949U - Vacuum generator performance testing device - Google Patents
Vacuum generator performance testing device Download PDFInfo
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- CN213688949U CN213688949U CN202120028598.0U CN202120028598U CN213688949U CN 213688949 U CN213688949 U CN 213688949U CN 202120028598 U CN202120028598 U CN 202120028598U CN 213688949 U CN213688949 U CN 213688949U
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Abstract
The utility model provides a performance testing device of a vacuum generator, which comprises an air source, a first air inlet and a second air inlet, wherein the air source is communicated with the first air inlet of the vacuum generator to be tested and is used for providing compressed air into the vacuum generator to be tested; the air outlet of the vacuum box is communicated with the second air port of the vacuum generator to be tested; the negative pressure sensor is used for measuring a vacuum value in the vacuum box; the controller is electrically connected with the negative pressure sensor and is used for judging that the vacuumizing efficiency of the vacuum generator to be tested is qualified if the vacuumizing time is less than or equal to the first preset time when the vacuum value in the vacuum box reaches the first preset value; and/or after the vacuum value in the vacuum box reaches the first preset value, if the reduced value of the vacuum value in the vacuum box in the second preset time is less than or equal to the second preset value, judging that the air tightness of the vacuum generator to be detected is qualified. The controller is used for automatically detecting, judging whether the vacuum generator to be detected is qualified or not, and providing fault diagnosis information, so that the testing method is efficient and convenient.
Description
Technical Field
The utility model relates to a vacuum generator tests technical field particularly, relates to a vacuum generator capability test device.
Background
At present, the vacuum pumping efficiency and the air tightness of a vacuum generator are respectively tested, and the performance of the vacuum generator is judged to be qualified or not by performing later-stage calculation according to data recorded in the testing process. The test process is complex in operation, low in efficiency and large in human error. There is no device for comprehensively testing the vacuum-pumping efficiency and the air tightness of the vacuum generator and directly judging the qualification.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a vacuum generator capability test device aims at solving the problem of how effectively to test vacuum generator evacuation efficiency and gas tightness.
The utility model provides a vacuum generator capability test device, the device includes: the air source is communicated with the first air port of the vacuum generator to be tested and is used for providing compressed air into the vacuum generator to be tested; the air outlet of the vacuum box is communicated with the second air port of the vacuum generator to be tested; the negative pressure sensor is used for measuring a vacuum value in the vacuum box; the controller is electrically connected with the negative pressure sensor and is used for judging that the vacuumizing efficiency of the vacuum generator to be tested is qualified if the vacuumizing time is less than or equal to the first preset time when the vacuum value in the vacuum box reaches the first preset value; and/or after the vacuum value in the vacuum box reaches the first preset value, if the reduced value of the vacuum value in the vacuum box in the second preset time is less than or equal to the second preset value, judging that the air tightness of the vacuum generator to be detected is qualified.
Further, the vacuum generator performance testing device further comprises: and the air source is communicated with the first air port of the vacuum generator to be tested through the air inlet device.
Further, in the vacuum generator performance testing apparatus, the air inlet means includes: the air source is communicated with a first air port of the vacuum generator to be measured sequentially through the pressure regulating valve, the pressure gauge and the pressure sensor; the pressure sensor is electrically connected with the controller.
Further, in the vacuum generator performance testing apparatus, the air inlet unit further includes: the air source is communicated with the pressure regulating valve through the filter.
Further, in the vacuum generator performance testing apparatus, the air inlet unit further includes: and the air source is communicated with the filter through the ball valve.
Further, in the vacuum generator performance testing apparatus, the air inlet unit further includes: the pressure sensor is communicated with the vacuum generator to be tested through the first electromagnetic valve; the first electromagnetic valve is electrically connected with the controller.
Furthermore, in the vacuum generator performance testing device, the negative pressure sensor is communicated with the air outlet of the vacuum box through the vacuum switch; the vacuum switch is electrically connected with the controller.
Furthermore, in the vacuum generator performance testing device, the air outlet of the vacuum box is also communicated with the second electromagnetic valve through a vacuum meter; the second electromagnetic valve is electrically connected with the controller.
Furthermore, in the vacuum generator performance testing device, the controller is also connected with a power supply.
The utility model discloses in, detect evacuation efficiency and the gas tightness of the vacuum generator that awaits measuring through the controller is automatic, judge whether the vacuum generator that awaits measuring is qualified, provide failure diagnosis information simultaneously, testing method is high-efficient, convenient.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a vacuum generator performance testing apparatus provided by an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1, fig. 1 shows a schematic structural diagram of a vacuum generator performance testing apparatus provided in this embodiment. As shown in fig. 1, the apparatus includes: an air source 1, a vacuum box 15, a negative pressure sensor 13 and a controller 12. The vacuum generator 8 to be tested is a device to be tested, the air source 1 is communicated with the first air port 81 of the vacuum generator 8 to be tested so as to provide compressed air for the vacuum generator 8 to be tested, and the vacuum generator 8 to be tested is also provided with a third air port 83. The air outlet 151 of the vacuum box 15 is communicated with the second air port 82 of the vacuum generator 8 to be measured, the negative pressure sensor 13 can detect the vacuum value in the vacuum box 15, and the controller 12 is electrically connected with the negative pressure sensor 13. The air source 1 provides compressed air into the vacuum generator 8 to be tested, so that negative pressure is generated in the vacuum box 15, when the vacuum value in the vacuum box 15 reaches a first preset value, the vacuum generator 8 to be tested stops working, and the whole testing device enters a pressure maintaining state. The time required when the vacuum value in the vacuum box 15 reaches the first preset value is the vacuumizing time, and the vacuumizing time can reflect the vacuumizing efficiency. If the vacuumizing time is less than or equal to the first preset time, the controller 12 judges that the vacuumizing efficiency of the vacuum generator 8 to be tested is qualified, otherwise, the vacuumizing efficiency is unqualified. When the testing device is in a pressure maintaining state, the controller 12 judges the air tightness of the vacuum generator 8 to be tested according to the change of the vacuum value in the vacuum box 15 within the specified time, if the reduced value of the vacuum value in the vacuum box 15 within the second preset time is less than or equal to the second preset value, the controller 12 judges that the air tightness of the vacuum generator 8 to be tested is qualified, otherwise, the air tightness is unqualified. It should be noted that the first preset value, the first preset time, the second preset value, and the second preset time may be set according to different products and different requirements, and this embodiment does not limit the same.
In the above embodiment, the vacuum tester further comprises an air inlet device, and the air source 1 is communicated with the first air port 81 of the vacuum generator 8 to be tested through the air inlet device. Specifically, the air inlet device comprises a ball valve 2, a filter 3, a pressure regulating valve 4, a pressure gauge 5, a pressure sensor 6 and a first electromagnetic valve 7, an air source 1 is communicated with a first air port 81 of a vacuum generator 8 to be measured sequentially through the pressure regulating valve 4, the pressure gauge 5 and the pressure sensor 6, the air source 1 is communicated with the pressure regulating valve 4 through the filter 3, the air source 1 is communicated with the filter 3 through the ball valve 2, and the pressure sensor 6 is communicated with the vacuum generator 8 to be measured through the first electromagnetic valve 7. The negative pressure sensor 13 is communicated with an air outlet 151 of the vacuum box 15 through the vacuum switch 14, the air outlet 151 of the vacuum box 15 is also communicated with the second electromagnetic valve 10 through the vacuum meter 9, the pressure sensor 6, the first electromagnetic valve 7 and the vacuum switch 14 are all electrically connected with the controller 12, the controller 12 is also connected with the power supply 11, and the power supply 11 provides electric energy for the controller 12.
When the test device is specifically implemented, the test device comprises a first air path and a second air path. The air source 1, the ball valve 2, the filter 3, the pressure regulating valve 4, the pressure gauge 5, the pressure sensor 6, the first electromagnetic valve 7 and the vacuum generator to be measured 8 are sequentially communicated with each other, so that a first air path is formed, and a third air port 83 of the vacuum generator to be measured 8 serves as an air outlet of the first air path and is communicated with the atmosphere. The ball valve 2 can be a manual ball valve; the pressure regulating valve 4 is used for regulating the pressure of compressed gas so as to meet the test requirement; the pressure gauge 5 is used for displaying the adjusting pressure of the pressure adjusting valve 4; the pressure sensor 6 is used for monitoring the pressure of the compressed gas in real time and outputting the pressure value to the controller 12; the first solenoid valve 7 is opened and closed by a controller 12 to supply compressed gas to the test apparatus or to cut off the supply of compressed gas.
The negative pressure sensor 13, the vacuum switch 14, the vacuum box 15, the vacuum gauge 9 and the second electromagnetic valve 10 are sequentially communicated to form a second air path, an air inlet 101 of the second electromagnetic valve 10 is communicated with the vacuum gauge, and an outlet 102 of the second electromagnetic valve is used as a vent of the second air path and is communicated with the atmosphere. The negative pressure sensor 13 is used for monitoring the vacuum value in the vacuum box 15 in real time and outputting the vacuum value to the controller 12; the vacuum switch 14 is used for detecting the residual vacuum degree after the vacuum box 15 releases the vacuum, and if the residual vacuum degree exceeds a preset value, a switching value signal is output to the controller 12; the vacuum meter 9 is used for displaying the vacuum value in the vacuum box 15; the second solenoid valve 10 is used to release the vacuum in the vacuum box 15.
The working flow of the vacuum generator performance testing device is as follows:
1. the compressed air line is connected, the ball valve 2 is opened, the pressure regulating valve 4 is adjusted and the reading of the pressure gauge 5 is observed until the required pressure is reached.
2. The power of the controller 12 is turned on and the corresponding test item point is selected, and the system starts to work according to the preset test flow:
1) the first electromagnetic valve 7 is opened, the air source 1 supplies compressed air to the vacuum generator 8 to be detected, the vacuum generator 8 to be detected starts to work and generates vacuum in the vacuum box 15, and the negative pressure sensor 13 outputs a vacuum value signal to the controller 12 in real time.
2) When the vacuum value in the vacuum box 15 reaches a first preset value, the first electromagnetic valve 7 is closed, the vacuum generator 8 to be tested stops working, and the testing device enters a pressure maintaining state. The controller 12 judges the vacuum-pumping efficiency of the vacuum generator 8 to be measured according to the vacuum-pumping time: if the vacuumizing time is less than or equal to a first preset time, the product is qualified; otherwise, the product is not qualified.
3) In the pressure maintaining process of the testing device, the controller 12 judges the air tightness according to the change of the vacuum value in the vacuum box 15 within the specified time: if the value of the reduction of the vacuum value is less than or equal to a second preset value within a second preset time, the air tightness is qualified; otherwise, the product is not qualified.
4) After the test is finished, the second electromagnetic valve 10 is electrified and opened, the vacuum in the vacuum box 15 is released, and the test device can perform the next round of test.
The pressure sensor 6 and the vacuum switch 14 are active in a fault state and do not operate in a normal operating state.
The fault diagnosis function of the vacuum generator performance testing device is as follows:
1. if the pressure value detected by the pressure sensor 6 is lower than the preset value required by the testing device, the controller 12 displays corresponding fault information, and the testing device does not work.
2. If the vacuum in the vacuum box 15 does not reach the first preset value within the first preset time, the controller 12 displays corresponding fault information and the testing device does not work.
3. If the vacuum degree in the vacuum box 15 is reduced by a value larger than a second preset value within a preset pressure maintaining time, the controller 12 displays corresponding fault information, and the testing device does not work.
4. If the residual vacuum degree still exceeds the preset lower limit value of the vacuum switch 14 after the vacuum box 15 releases the vacuum, the controller 12 displays corresponding fault information, and the testing device does not work.
In summary, in the embodiment, the controller automatically detects the vacuum pumping efficiency and the air tightness of the vacuum generator to be tested to determine whether the vacuum generator to be tested is qualified or not, and provides the fault diagnosis information, so that the testing method is efficient and convenient.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. A vacuum generator performance testing apparatus, comprising:
the air source is communicated with the first air port of the vacuum generator to be tested and used for providing compressed air into the vacuum generator to be tested;
the air outlet of the vacuum box is communicated with the second air port of the vacuum generator to be tested;
a negative pressure sensor for measuring a vacuum value within the vacuum box;
the controller is electrically connected with the negative pressure sensor and is used for judging that the vacuumizing efficiency of the vacuum generator to be tested is qualified if the vacuumizing time is less than or equal to first preset time when the vacuum value in the vacuum box reaches a first preset value; and/or after the vacuum value in the vacuum box reaches a first preset value, if the reduced value of the vacuum value in the vacuum box in a second preset time is less than or equal to a second preset value, judging that the air tightness of the vacuum generator to be detected is qualified.
2. The vacuum generator performance testing apparatus of claim 1, further comprising:
and the air source is communicated with the first air port of the vacuum generator to be tested through the air inlet device.
3. The vacuum generator performance testing apparatus of claim 2, wherein the air inlet means comprises:
the air source is communicated with a first air port of the vacuum generator to be measured sequentially through the pressure regulating valve, the pressure gauge and the pressure sensor;
the pressure sensor is electrically connected with the controller.
4. The vacuum generator performance testing apparatus of claim 3, wherein the air inlet means further comprises:
and the air source is communicated with the pressure regulating valve through the filter.
5. The vacuum generator performance testing apparatus of claim 4, wherein the air inlet means further comprises:
and the gas source is communicated with the filter through the ball valve.
6. The vacuum generator performance testing apparatus of claim 3, wherein the air inlet means further comprises:
the pressure sensor is communicated with a first air port of the vacuum generator to be tested through the first electromagnetic valve;
the first solenoid valve is electrically connected with the controller.
7. The vacuum generator performance testing apparatus of claim 1,
the negative pressure sensor is communicated with an air outlet of the vacuum box through a vacuum switch;
the vacuum switch is electrically connected with the controller.
8. The vacuum generator performance testing apparatus of claim 1,
the air outlet of the vacuum box is also communicated with a second electromagnetic valve through a vacuum meter;
the second solenoid valve is electrically connected with the controller.
9. Vacuum generator performance testing apparatus according to any of claims 1-8,
the controller is also connected with a power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120028598.0U CN213688949U (en) | 2021-01-07 | 2021-01-07 | Vacuum generator performance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120028598.0U CN213688949U (en) | 2021-01-07 | 2021-01-07 | Vacuum generator performance testing device |
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| Publication Number | Publication Date |
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| CN213688949U true CN213688949U (en) | 2021-07-13 |
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| CN202120028598.0U Active CN213688949U (en) | 2021-01-07 | 2021-01-07 | Vacuum generator performance testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441119A (en) * | 2022-01-18 | 2022-05-06 | 冰山松洋生物科技(大连)有限公司 | Performance detection device and detection method of airtight cable for cell operation station |
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2021
- 2021-01-07 CN CN202120028598.0U patent/CN213688949U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441119A (en) * | 2022-01-18 | 2022-05-06 | 冰山松洋生物科技(大连)有限公司 | Performance detection device and detection method of airtight cable for cell operation station |
| CN114441119B (en) * | 2022-01-18 | 2024-02-06 | 冰山松洋生物科技(大连)有限公司 | Performance detection device and detection method for airtight cable for cell operation station |
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Effective date of registration: 20210818 Address after: 2 / F, block B, 66 Qingyi Road, high tech Zone, Ningbo City, Zhejiang Province Patentee after: Ningbo Ruilian maintenance Rail Transit Equipment Co.,Ltd. Address before: 266000 Room 502, unit 3, building 7, No. 696, Hefei Road, Shibei District, Qingdao City, Shandong Province Patentee before: Yang Kaiyue |