CN113588182A - System for detecting air tightness of refrigerator - Google Patents
System for detecting air tightness of refrigerator Download PDFInfo
- Publication number
- CN113588182A CN113588182A CN202110859508.7A CN202110859508A CN113588182A CN 113588182 A CN113588182 A CN 113588182A CN 202110859508 A CN202110859508 A CN 202110859508A CN 113588182 A CN113588182 A CN 113588182A
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- valve
- branch
- pipeline
- refrigerator
- flowmeter
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- 238000004891 communication Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 238000010408 sweeping Methods 0.000 claims abstract description 5
- 238000004146 energy storage Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 description 25
- 238000001514 detection method Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model provides a system for be used for detecting refrigerator gas tightness, relates to refrigerator production technical field for solve the problem that the production process at the refrigerator is difficult to carry out the gas tightness and detect to the pipeline of refrigerator. The utility model provides a system for be used for detecting refrigerator gas tightness, is including sweeping yard rifle, first flowmeter, second flowmeter, pressure gauge, gas circuit system and computer, first flowmeter, second flowmeter with the pressure gauge is established respectively in the gas circuit system, sweep yard rifle first flowmeter second flowmeter with the pressure gauge respectively with computer communication connects, the gas circuit system is equipped with the pipe joint, and the pipe joint is used for connecting the refrigerator pipeline, sweep yard rifle with the pipe joint is established around the refrigerator production line.
Description
Technical Field
The invention relates to the technical field of refrigerator production, in particular to a system for detecting the air tightness of a refrigerator.
Background
The air tightness of the water pipe of the ice maker of the refrigerator is detected in a laboratory at present, so that all products on a production line can not be detected one by one, and the delivery quality of the products can not be confirmed. The air tightness detection equipment used in the laboratory has high requirements on detection environment and cannot be transplanted to a production line.
Disclosure of Invention
The invention aims to provide a system for detecting the air tightness of a refrigerator, which is used for solving the problem that the air tightness of a pipeline of the refrigerator is difficult to detect in the production process of the refrigerator.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a system for be used for detecting refrigerator gas tightness, is including sweeping yard rifle, first flowmeter, second flowmeter, pressure gauge, gas circuit system and computer, first flowmeter, second flowmeter with the pressure gauge is established respectively in the gas circuit system, sweep yard rifle first flowmeter second flowmeter with the pressure gauge respectively with computer communication connects, the gas circuit system is equipped with the pipe joint, and the pipe joint is used for connecting the refrigerator pipeline, sweep yard rifle with the pipe joint is established around the refrigerator production line.
Further, the gas path system comprises a main pipeline, a first branch pipeline, a second branch pipeline, a third branch pipeline, a first drainage branch, a second drainage branch and a third drainage branch;
the main pipeline is sequentially connected with a first ball valve, a first pressure reducing valve and a first filter in series from the head end to the tail end;
the first branch pipeline is sequentially connected with a second pressure reducing valve, a first flowmeter, a first electromagnetic valve, a second ball valve, a second filter and the pipeline joint in series from the head end to the tail end;
the second branch pipeline is sequentially connected with a third pressure reducing valve, a second electromagnetic valve, a fourth electromagnetic valve and an exhaust pipe in series from the head end to the tail end;
the third branch pipeline is sequentially connected with a fourth reducing valve, a second flowmeter, a seventh electromagnetic valve and a seventh ball valve in series from the head end to the tail end;
the first drainage branch is sequentially connected with a fifth electromagnetic valve, a third ball valve and a sixth electromagnetic valve from the head end to the tail end, the head end of the first drainage branch is connected with the second branch pipeline at the position between the second electromagnetic valve and the fourth electromagnetic valve, and the tail end of the first drainage branch is connected with the first branch pipeline at the position between the second ball valve and the second filter;
the head end of the second drainage branch is communicated with the third branch pipeline at the tail end of the third branch pipeline. The tail end of the second diversion branch is communicated with the first diversion branch at a position between the third ball valve and the sixth ball valve;
the head end of the first branch pipeline, the head end of the second branch pipeline and the head end of the third branch pipeline are respectively connected with the tail end of the main pipeline;
the third drainage branch comprises a third electromagnetic valve, the head end of the third electromagnetic valve is connected with a third branch pipeline between the fourth pressure reducing valve and the second flow meter, and the tail end of the second drainage branch is connected with the third branch pipeline between the second flow meter and the fourth ball valve.
Further, the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the fifth solenoid valve, the sixth solenoid valve and the seventh solenoid valve are respectively connected with a PLC controller, and the PLC controller is in communication connection with the computer.
Further, the pressure gauge is connected at a position between the second ball valve and the second filter.
Furthermore, the head end of the main pipeline is connected with an energy storage tank, the energy storage tank is provided with an air inlet pipe, and the air inlet pipe is used for being connected with an air source.
Further, sweep a yard rifle through communication integrated circuit board with computer communication connection.
Further, the first flow meter, the second flow meter, and the pressure gauge are communicatively coupled to the computer via an analog measurement module.
Has the advantages that:
the invention is used for carrying out pipeline detection work on the refrigerator on the production line. The using mode of the refrigerator identity tag detecting device obtains the identity tag on the refrigerator through the code scanning gun, so that the computer calls a program matched with the type of the refrigerator, the head end of the gas circuit system is connected to the gas source, and the pipeline of the detected refrigerator is connected to the gas circuit system. The computer judges the state of the refrigerator pipeline by performing logic operation on the initial pressure of the air source, the first flow meter, the second flow meter and the feedback parameters of the pressure gauge according to the program. The state of the refrigerator includes whether there is a leakage, whether there is a blockage, whether there is a break, etc.
Drawings
FIG. 1 is a schematic diagram of an embodiment of an electrical control portion of the present invention;
FIG. 2 is a schematic diagram of an embodiment of a gas circuit system according to the present invention;
in the figure: 1 energy storage tank, 11 first ball valve, 12 first reducing valve, 13 first filter, 2 second reducing valve, 21 first flowmeter, 22 first solenoid valve, 23 second ball valve, 24 second filter, 25 pipe joint, 3 third reducing valve, 31 second solenoid valve, 32 fourth solenoid valve, 33 blast pipe, 4 fourth reducing valve, 41 second flowmeter, 42 seventh solenoid valve, 43 fourth ball valve, 5 fifth solenoid valve, 51 third ball valve, 52 sixth solenoid valve, 6 pressure gauge, 7 computer, 71 communication board card, 72 analog quantity module, 73PLC controller, 8 third solenoid valve, 9 yard rifle of sweeping.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
With reference to figures 1 and 2 of the drawings,
the utility model provides a system for be used for detecting refrigerator gas tightness, including sweeping yard rifle 9, first flowmeter 21, second flowmeter 41, pressure gauge 6, gas circuit system and computer 7, first flowmeter 21, second flowmeter 41 and pressure gauge 6 are established respectively in the gas circuit system, sweep yard rifle, first flowmeter 21, second flowmeter 41 and pressure gauge 6 and communicate with computer 7 respectively, the gas circuit system is equipped with pipe joint 25, pipe joint 25 is used for connecting the refrigerator pipeline, sweep yard rifle and pipe joint 25 and establish around the refrigerator production line.
As shown in fig. 1 and 2, the present invention is used for performing a pipeline inspection work on a refrigerator on a production line. According to the using mode of the refrigerator identity tag detection device, the identity tag on the refrigerator is obtained through the code scanning gun 9, the computer calls a program matched with the type of the refrigerator, the head end of the gas circuit system is connected to the gas source, and the pipeline of the detected refrigerator is connected to the gas circuit system. The computer judges the state of the refrigerator pipeline by performing a logical operation on the feedback parameters from the program according to the initial pressure of the air source, the first flow meter 21, the second flow meter 41 and the pressure gauge 9. The state of the refrigerator includes whether there is a leakage, whether there is a blockage, whether there is a break, etc.
Further, the gas path system comprises a main pipeline, a first branch pipeline, a second branch pipeline, a third branch pipeline, a first drainage branch, a second drainage branch and a third drainage branch; the main pipeline is sequentially connected with a first ball valve 11, a first reducing valve 12 and a first filter 13 in series from the head end to the tail end; the first branch pipeline is sequentially connected with a second reducing valve 2, a first flowmeter 21, a first electromagnetic valve 22, a second ball valve 23, a second filter 24 and a pipeline joint 25 in series from the head end to the tail end; the second branch pipeline is sequentially connected with a third reducing valve 3, a second electromagnetic valve 31, a fourth electromagnetic valve 32 and an exhaust pipe 33 in series from the head end to the tail end; the third branch pipeline is sequentially connected with a fourth reducing valve 4, a second flowmeter 41, a seventh electromagnetic valve 42 and a seventh ball valve in series from the head end to the tail end; the first drainage branch is sequentially connected with a fifth electromagnetic valve 5, a third ball valve 51 and a sixth electromagnetic valve 52 from the head end to the tail end, the head end of the first drainage branch is connected with the second branch pipeline at the position between the second electromagnetic valve 31 and the fourth electromagnetic valve 32, and the tail end of the first drainage branch is connected with the first branch pipeline at the position between the second ball valve 23 and the second filter 24; the head end of the second drainage branch is communicated with the third branch pipeline at the tail end of the third branch pipeline. The tail end of the second diversion branch is communicated with the first diversion branch at a position between the third ball valve 51 and the sixth ball valve; the head end of the first branch pipeline, the head end of the second branch pipeline and the head end of the third branch pipeline are respectively connected with the tail end of the main pipeline; the third diversion branch comprises a third electromagnetic valve 8, the head end of the third electromagnetic valve 8 is connected with a third branch pipeline between the positions of the fourth pressure reducing valve 4 and the second flow meter 41, and the tail end of the second diversion branch is connected with the third branch pipeline between the positions of the second flow meter 41 and the fourth ball valve 43.
Different detection functions are realized by controlling the on-off collocation of the first electromagnetic valve 22, the second electromagnetic valve 31, the third electromagnetic valve 8, the fourth electromagnetic valve 32, the fifth electromagnetic valve 5, the sixth electromagnetic valve 52, the seventh electromagnetic valve 42, the first ball valve 11, the second ball valve 23, the third ball valve 51 and the fourth ball valve 43. Thereby being beneficial to comprehensively detecting the state of the refrigerator. The air flow pressure in the detection process is controlled through the first pressure reducing valve 12, the second pressure reducing valve 2, the third pressure reducing valve 3 and the fourth pressure reducing valve 4, and therefore the detection device is suitable for different detection work. First filter 13 and second filter 24 are used for filtering, drying to gas, and then do benefit to the accuracy of guaranteeing to detect the parameter, do benefit to the detection precision that improves detection work.
Further, the first solenoid valve 22, the second solenoid valve 31, the third solenoid valve 8, the fourth solenoid valve 32, the fifth solenoid valve 5, the sixth solenoid valve 52 and the seventh solenoid valve 42 are respectively connected to a PLC controller 73, and the PLC controller 73 is in communication connection with the computer 7. The indirect automatic control of the first electromagnetic valve 22, the second electromagnetic valve 31, the third electromagnetic valve 8, the fourth electromagnetic valve 32, the fifth electromagnetic valve 5 and the sixth electromagnetic valve 52 through a computer program is facilitated, and the work efficiency of automatic detection work is facilitated to be improved.
Further, a pressure gauge 6 for detecting a pressure change is connected at a position between the second ball valve 23 and the second filter 24.
Further, the head end of main line is connected with energy storage tank 1, and energy storage tank 1 is equipped with the intake pipe, and the intake pipe is used for inserting the air supply. Stabilize gaseous pressure through the energy storage jar, and then do benefit to the accuracy that improves detection achievement.
Further, the code scanning gun is in communication connection with the computer 7 through the communication board 71. For communication connection.
Further, the first flow meter 21, the second flow meter 41 and the pressure gauge 6 are communicatively connected to the computer 7 via an analog measurement module 72. For facilitating communication connections.
As shown in fig. 1, the operation process of detecting the state of the pipeline by using the invention is as follows:
firstly, inflating; in the process of inflation, the valves in the closed state comprise a third electromagnetic valve 8, a seventh electromagnetic valve 42, a fourth ball valve 43, a fourth electromagnetic valve 32, a first electromagnetic valve 22 and a second ball valve 23; the valves in the open state include a first ball valve 11, a second electromagnetic valve 31, a fifth electromagnetic valve 5, a third ball valve 51 and a sixth electromagnetic valve 52. During the inflation process, the gas flows through the path of the gas source → the energy storage tank 1 → the first ball valve 11 → the first pressure reducing valve 12 → the first filter 13 → the third pressure reducing valve 3 → the second solenoid valve 31 → the fifth solenoid valve 5 → the third ball valve 51 → the sixth solenoid valve 52 → the second filter 24 → the pipe joint 25 → the detected pipeline of the refrigerator.
Step two, balancing; in this step, the valves in the closed state include-the second electromagnetic valve 31, the fourth electromagnetic valve 32, the fifth electromagnetic valve 5, the third ball valve 51, the first electromagnetic valve 22 and the second ball valve 23; the valves in the opening state comprise a first ball valve 11, a first pressure reducing valve 12, a third electromagnetic valve 8, a seventh electromagnetic valve 42, a fourth ball valve 43 and a sixth electromagnetic valve 52; in this step, the main flow paths of the gases are: air supply → the energy storage tank 1 → the first ball valve 11 → the first pressure reducing valve 12 → the first filter 13 → the fourth pressure reducing valve 4 → the second flow meter 41 → the seventh solenoid valve 42 → the fourth ball valve 43 → the sixth solenoid valve 52 → the second filter 24 → the pipe joint 25 → the detected line of the refrigerator; meanwhile, a part of the gas flows through the third solenoid valve 8, and thus the two ends of the second flow meter 41 are balanced.
Step three, maintaining pressure and testing the air tightness result; in this step, the valves in the closed state include a third solenoid valve 8, a second solenoid valve 31, a fourth solenoid valve 32, a fifth solenoid valve 5, a third ball valve 51, a first solenoid valve 22 and a second ball valve 23; the valves in the open state include a first ball valve 11, a seventh electromagnetic valve 42, a fourth ball valve 43 and a sixth electromagnetic valve 52; in this step, the gas flows through the gas source → the accumulator tank 1 → the first ball valve 11 → the first pressure reducing valve 12 → the first filter 13 → the fourth pressure reducing valve 4 → the second flow meter 41 → the seventh solenoid valve 42 → the fourth ball valve 43 → the sixth solenoid valve 52 → the second filter 24 → the pipe joint 25 → the detected line of the refrigerator.
Fourthly, exhausting and finishing the air tightness test; in this step, the valves in the closed state include a first ball valve 11, a third electromagnetic valve 8, a seventh electromagnetic valve 42, a fourth ball valve 43, a second electromagnetic valve 31, a first electromagnetic valve 22 and a second ball valve 23; the valves in the open state comprise a sixth electromagnetic valve 52, a third ball valve 51, a fifth electromagnetic valve 5 and a fourth electromagnetic valve 32; the path of the exhaust air is the detected pipe of the refrigerator → the pipe joint 25 → the second filter 24 → the sixth solenoid valve 52 → the third ball valve 51 → the fifth solenoid valve 5 → the fourth solenoid valve 32 → the exhaust pipe 33. In the process, the second filter can be flushed in the direction, and the air permeability of the second filter is guaranteed.
Fifthly, testing the blockage or the folding of the refrigerator pipeline through the first flowmeter; during the step, the valves in the closed state include the solenoid valve 8, the seventh solenoid valve 42, the fourth ball valve 43, the second solenoid valve 31, the fourth solenoid valve 32, the fifth solenoid valve 5, the third ball valve 51 and the sixth solenoid valve 52; the valves in the opening state comprise a first ball valve 11, a first electromagnetic valve 22 and a second ball valve 23; in this step, the flow paths of the gases are: air supply → the accumulator tank 1 → the first ball valve 11 → the first pressure reducing valve 12 → the first filter 13 → the second pressure reducing valve 2 → the first flow meter 21 → the first solenoid valve 22 → the second ball valve 23 → the second filter 24 → the pipe joint 25 → the detected pipe of the refrigerator.
In the process, the computer judges the state of the refrigerator pipeline by carrying out logical operation according to the initial pressure of the air source, the first flow meter, the second flow meter and the feedback parameters of the pressure gauge according to the program. The state of the refrigerator includes whether there is a leakage, whether there is a blockage, whether there is a break, etc.
Claims (7)
1. The utility model provides a system for be used for detecting refrigerator gas tightness, characterized by, including sweeping yard rifle, first flowmeter, second flowmeter, pressure gauge, gas circuit system and computer, first flowmeter, second flowmeter with the pressure gauge is established respectively in the gas circuit system, sweep yard rifle first flowmeter second flowmeter with the pressure gauge respectively with computer communication connects, the gas circuit system is equipped with the pipe joint, and the pipe joint is used for connecting the refrigerator pipeline, sweep yard rifle with the pipe joint is established around the refrigerator production line.
2. The system for detecting the air tightness of the refrigerator according to claim 1, wherein the air path system comprises a main pipeline, a first branch pipeline, a second branch pipeline, a third branch pipeline, a first diversion branch, a second diversion branch and a third diversion branch;
the main pipeline is sequentially connected with a first ball valve, a first pressure reducing valve and a first filter in series from the head end to the tail end;
the first branch pipeline is sequentially connected with a second pressure reducing valve, a first flowmeter, a first electromagnetic valve, a second ball valve, a second filter and the pipeline joint in series from the head end to the tail end;
the second branch pipeline is sequentially connected with a third pressure reducing valve, a second electromagnetic valve, a fourth electromagnetic valve and an exhaust pipe in series from the head end to the tail end;
the third branch pipeline is sequentially connected with a fourth reducing valve, a second flowmeter, a seventh electromagnetic valve and a seventh ball valve in series from the head end to the tail end;
the first drainage branch is sequentially connected with a fifth electromagnetic valve, a third ball valve and a sixth electromagnetic valve from the head end to the tail end, the head end of the first drainage branch is connected with the second branch pipeline at the position between the second electromagnetic valve and the fourth electromagnetic valve, and the tail end of the first drainage branch is connected with the first branch pipeline at the position between the second ball valve and the second filter;
the head end of the second drainage branch is communicated with the third branch pipeline at the tail end of the third branch pipeline. The tail end of the second diversion branch is communicated with the first diversion branch at a position between the third ball valve and the sixth ball valve;
the head end of the first branch pipeline, the head end of the second branch pipeline and the head end of the third branch pipeline are respectively connected with the tail end of the main pipeline;
the third drainage branch comprises a third electromagnetic valve, the head end of the third electromagnetic valve is connected with a third branch pipeline between the fourth pressure reducing valve and the second flow meter, and the tail end of the second drainage branch is connected with the third branch pipeline between the second flow meter and the fourth ball valve.
3. The system for detecting the airtightness of the refrigerator according to claim 2, wherein the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the fifth solenoid valve, the sixth solenoid valve and the seventh solenoid valve are respectively connected to a PLC controller, and the PLC controller is in communication connection with the computer.
4. The system for detecting the airtightness of a refrigerator according to claim 2, wherein said pressure gauge is connected at a position between said second ball valve and said second filter.
5. The system for detecting the air tightness of the refrigerator as claimed in claim 2, wherein the head end of the main pipeline is connected with an energy storage tank, the energy storage tank is provided with an air inlet pipe, and the air inlet pipe is used for being connected with an air source.
6. The system for detecting the airtightness of the refrigerator according to claim 1, wherein the code scanning gun is communicatively connected to the computer through a communication card.
7. The system as claimed in claim 1, wherein the first flow meter, the second flow meter and the pressure gauge are communicatively connected to the computer through an analog module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110859508.7A CN113588182B (en) | 2021-07-28 | 2021-07-28 | System for detecting air tightness of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110859508.7A CN113588182B (en) | 2021-07-28 | 2021-07-28 | System for detecting air tightness of refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113588182A true CN113588182A (en) | 2021-11-02 |
| CN113588182B CN113588182B (en) | 2024-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110859508.7A Active CN113588182B (en) | 2021-07-28 | 2021-07-28 | System for detecting air tightness of refrigerator |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2393380C1 (en) * | 2009-01-27 | 2010-06-27 | Общество С Ограниченной Ответственностью "Газпромэнергодиагностика" | Method for measurement of gas flow through untight gate of closed ball valve of stop and control valves of manifold pipeline and device for its implementation |
| CN103335798A (en) * | 2013-06-27 | 2013-10-02 | 东莞市骏泰精密机械有限公司 | Soft package lithium battery airtightness detection machine and method |
| CN106840547A (en) * | 2017-03-30 | 2017-06-13 | 杭州电子科技大学 | A kind of batteries of electric automobile bag air-tightness detection device and detection method |
| CN108918053A (en) * | 2018-07-12 | 2018-11-30 | 罗莱生活科技股份有限公司 | Exchange heat mattress sealing ventilation tester and test method |
| CN215374397U (en) * | 2021-07-28 | 2021-12-31 | 青岛科发高技术工程有限公司 | System for detecting air tightness of refrigerator |
-
2021
- 2021-07-28 CN CN202110859508.7A patent/CN113588182B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2393380C1 (en) * | 2009-01-27 | 2010-06-27 | Общество С Ограниченной Ответственностью "Газпромэнергодиагностика" | Method for measurement of gas flow through untight gate of closed ball valve of stop and control valves of manifold pipeline and device for its implementation |
| CN103335798A (en) * | 2013-06-27 | 2013-10-02 | 东莞市骏泰精密机械有限公司 | Soft package lithium battery airtightness detection machine and method |
| CN106840547A (en) * | 2017-03-30 | 2017-06-13 | 杭州电子科技大学 | A kind of batteries of electric automobile bag air-tightness detection device and detection method |
| CN108918053A (en) * | 2018-07-12 | 2018-11-30 | 罗莱生活科技股份有限公司 | Exchange heat mattress sealing ventilation tester and test method |
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Non-Patent Citations (1)
| Title |
|---|
| 刘春;胡建平;郭磊;侯波;: "基于PLC控制的气密检测仪的设计原理", 机械设计与制造, no. 06, 8 June 2011 (2011-06-08) * |
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| CN113588182B (en) | 2024-06-14 |
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