Container detection system

Abstract

The utility model discloses a container detection system, which belongs to the technical field of container detection and comprises a main cabinet door, a positive pressure electromagnetic valve relay, a positive pressure relief electromagnetic valve relay and a first counter relay. According to the utility model, positive pressure gas can be output in a quantitative and constant-volume manner, a container can be vacuumized according to detection requirements to create a negative pressure environment, the capacity of the container can be detected, different containers with different positive pressure requirements and negative pressure requirements can be detected, and different positive pressure values and negative pressure values of the same container can be quantitatively detected; the system can be used for carrying out fatigue test, service life detection, container airtightness detection and simultaneous detection on a plurality of containers, the detection efficiency is improved, the system can carry out system self-detection, the detection precision and the data accuracy are ensured, the system is provided with a control system and a touch screen, one-key start detection is realized, the result is automatically judged, and the system is convenient to use. Meanwhile, hardware protection measures are provided, so that damage to the detection container caused by disorder of the control system is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of container detection, and particularly relates to a container detection system. Background Art

[0002] At present, the existing container detection devices on the market have relatively single uses and functions, and cannot meet the increasing complex detection requirements. Many detection devices can only perform negative pressure detection or positive pressure detection, and they are large in volume and inconvenient to carry. There is a lack of a detection system dedicated to detecting the capacity, airtightness, service life, and usage conditions at different pressure values of containers. Therefore, a container detection system is needed to solve the above problems. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a container detection system to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A container detection system includes a main cabinet door, a positive pressure solenoid valve relay, a positive pressure relief solenoid valve relay, a No. 1 counter relay, a vacuum pumping solenoid valve relay, a negative pressure relief solenoid valve relay, a No. 2 counter relay, a No. 1 detection solenoid valve relay, a No. 2 detection solenoid valve relay, a No. 3 detection solenoid valve relay, a switching power supply, a control system, a positive pressure timeout time relay, a vacuum pumping timeout time relay, a positive pressure relief solenoid valve, a vacuum pumping solenoid valve, a negative pressure relief solenoid valve, a gas source pressure sensor, a positive pressure sensor, a No. 1 negative pressure sensor, a No. 2 negative pressure sensor, a No. 3 negative pressure sensor, a gas mass flow meter, a positive pressure gas mass flow meter, a rear cabinet door, a filter, an electro-pneumatic proportional valve, a pressure gauge, a positive pressure solenoid valve, a No. 1 detection solenoid valve, a No. 2 detection solenoid valve, a No. 3 detection solenoid valve, a positive pressure small flow regulating valve, a negative pressure small flow regulating valve, a positive pressure relief valve, a positive pressure relief valve silencer, a negative pressure relief valve, a negative pressure relief valve silencer, a vacuum generator, a power interface, a gas source interface, a positive pressure detection port, a positive pressure relief port, a No. 1 negative pressure detection port, a No. 2 negative pressure detection port, a No. 3 negative pressure detection port, a negative pressure relief port, a power switch, a positive pressure timeout indicator light, a positive pressure timeout setting knob, a vacuum pumping timeout indicator light, a vacuum pumping timeout setting knob, a touch screen, a No. 1 counter, a No. 2 counter, moving rollers, a box body exhaust port, and a box body. The inlet end of the filter is connected to the gas source interface through a gas path, and the outlet end of the filter is connected to the inlet end of the electro-pneumatic proportional valve. The outlet end of the electro-pneumatic proportional valve is respectively connected to the pressure gauge, the gas source pressure sensor, the inlet end of the positive pressure relief solenoid valve, the inlet end of the gas mass flow meter, the inlet end of the vacuum pumping solenoid valve, and the inlet end of the negative pressure relief solenoid valve through gas paths;

[0005] The outlet end of the positive pressure relief solenoid valve is connected to the control end of the positive pressure relief valve through an air circuit. One end of the positive pressure relief valve is connected to the exhaust port of the box through a positive pressure relief valve silencer, and the other end of the positive pressure relief valve is connected to the positive pressure relief air path. The inlet end of the positive pressure small flow regulating valve is connected to the positive pressure relief air path, and the outlet end of the positive pressure small flow regulating valve is connected to the inlet end of the positive pressure gas mass flowmeter through an air circuit. The outlet end of the positive pressure gas mass flowmeter is connected to the exhaust port of the box;

[0006] The outlet end of the gas mass flowmeter is connected to the inlet end of the positive pressure solenoid valve through an air circuit. The outlet end of the positive pressure solenoid valve is respectively connected to the positive pressure sensor and the positive pressure detection port through an air circuit;

[0007] The outlet end of the vacuum solenoid valve is connected to the control end of the vacuum generator through an air circuit. The inlet of the vacuum generator is respectively connected to the inlet ends of the No. 1 detection solenoid valve, the No. 2 detection solenoid valve, and the No. 3 detection solenoid valve through an air circuit. The outlet end of the No. 1 detection solenoid valve is respectively connected to the No. 1 negative pressure sensor and the No. 1 negative pressure detection port through an air circuit. The outlet end of the No. 2 detection solenoid valve is respectively connected to the No. 2 negative pressure sensor and the No. 2 negative pressure detection port through an air circuit. The outlet end of the No. 3 detection solenoid valve is respectively connected to the No. 3 negative pressure sensor and the No. 3 negative pressure detection port through an air circuit;

[0008] The outlet end of the negative pressure relief solenoid valve is connected to the control end of the negative pressure relief valve through an air circuit. One end of the negative pressure relief valve is connected to the exhaust port of the box through a negative pressure relief valve silencer, and the other end of the negative pressure relief valve is connected to the negative pressure relief air path. The inlet end of the negative pressure small flow regulating valve is connected to the negative pressure relief air path, and the outlet end of the negative pressure small flow regulating valve is connected to the exhaust port of the box.

[0009] As a preferred embodiment, the positive pressure relief solenoid valve relay is electrically connected to the positive pressure relief solenoid valve and the No. 1 counter relay, and the No. 1 counter relay is electrically connected to the No. 1 counter.

[0010] As a preferred embodiment, the positive pressure solenoid valve is electrically connected to the positive pressure solenoid valve relay and the positive pressure timeout time relay, and the positive pressure timeout time relay is electrically connected to the positive pressure timeout indicator light.

[0011] As a preferred embodiment, the vacuum solenoid valve is electrically connected to the vacuum solenoid valve relay and the vacuum timeout time relay, and the vacuum timeout time relay is electrically connected to the vacuum timeout indicator light.

[0012] As a preferred embodiment, the negative pressure relief solenoid valve relay is electrically connected to the negative pressure relief solenoid valve and the No. 2 counter relay, and the No. 2 counter relay is electrically connected to the No. 2 counter.

[0013] As a preferred embodiment, the No. 1 detection solenoid valve is electrically connected to the No. 1 detection solenoid valve relay, the No. 2 detection solenoid valve is electrically connected to the No. 2 detection solenoid valve relay, and the No. 3 detection solenoid valve is electrically connected to the No. 3 detection solenoid valve relay.

[0014] As a preferred embodiment, the electro-hydraulic proportional valve, the air source pressure sensor, the gas mass flowmeter, the positive pressure solenoid valve relay, the positive pressure small flow regulating valve, the positive pressure gas mass flowmeter, the positive pressure pressure relief solenoid valve relay, the positive pressure sensor, the vacuum extraction solenoid valve relay, the No. 1 detection solenoid valve relay, the No. 1 negative pressure sensor, the No. 2 detection solenoid valve relay, the No. 2 negative pressure sensor, the No. 3 detection solenoid valve relay, the No. 3 negative pressure sensor, the negative pressure pressure relief solenoid valve relay, the negative pressure small flow regulating valve, the touch screen, the No. 1 counter and the No. 2 counter are all electrically connected to the control system.

[0015] As a preferred embodiment, a partition is provided between the front side and the rear side inside the box body.

[0016] As a preferred embodiment, a plurality of moving rollers are connected to the lower surface of the box body.

[0017] As a preferred embodiment, start and stop buttons are provided on the touch screen.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] The present utility model can output positive pressure gas quantitatively and by volume, can create a negative pressure environment by evacuating the container according to the detection needs, can perform container capacity detection, can detect different containers with different positive pressure requirements and negative pressure requirements, can quantitatively detect different positive pressure values and negative pressure values of the same container, can perform fatigue tests on the container, perform life detection, and can perform container airtightness detection, making the system have a wider application range and more uses. Moreover, the system is provided with multiple detection channels and can detect multiple containers simultaneously, improving the detection efficiency. In addition, the system can perform system self-checking to ensure the detection accuracy and data accuracy. And the system is configured with a control system and a touch screen, and can set detection parameters according to actual needs, can better adapt to actual use requirements, start detection with one key and automatically determine the results. At the same time, it is equipped with hardware protection measures to prevent damage to the detected containers caused by the chaos of the control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the principle of the present utility model;

[0021] Figure 2 is a front view structural schematic diagram of the present utility model;

[0022] Figure 3 This is a schematic structural view of the front of the cabinet door of the present utility model;

[0023] Figure 4 This is a schematic structural view of the back of the present utility model;

[0024] Figure 5 This is a schematic structural view of the back of the cabinet door of the present utility model;

[0025] Figure 6 This is a schematic structural view of the left side of the present utility model;

[0026] Figure 7 This is a schematic structural view of the right side of the present utility model;

[0027] Figure 8 This is a schematic structural view of the top of the present utility model;

[0028] Figure 9 This is a schematic structural view of the bottom of the present utility model.

[0029] In the figure: 1. Main cabinet door; 2. Positive pressure solenoid valve relay; 3. Positive pressure relief solenoid valve relay; 4. No. 1 counter relay; 5. Vacuum pumping solenoid valve relay; 6. Negative pressure relief solenoid valve relay; 7. No. 2 counter relay; 8. No. 1 detection solenoid valve relay; 9. No. 2 detection solenoid valve relay; 10. No. 3 detection solenoid valve relay; 11. Switching power supply; 12. Control system; 13. Positive pressure timeout time relay; 14. Vacuum pumping timeout time relay; 15. Positive pressure relief solenoid valve; 16. Vacuum pumping solenoid valve; 17. Negative pressure relief solenoid valve; 18. Air source pressure sensor; 19. Positive pressure sensor; 20. No. 1 negative pressure sensor; 21. No. 2 negative pressure sensor; 22. No. 3 negative pressure sensor; 23. Gas mass flowmeter; 24. Positive pressure gas mass flowmeter; 25. Rear cabinet door; 26. Filter; 27. Electro-hydraulic proportional valve; 28. Pressure gauge; 29. Positive pressure solenoid valve; 30. No. 1 detection solenoid valve; 31. No. 2 detection solenoid valve; 32. No. 3 detection solenoid valve; 33. Positive pressure small flow regulating valve; 34. Negative pressure small flow regulating valve; 35. Positive pressure relief valve; 36. Positive pressure relief valve silencer; 37. Negative pressure relief valve; 38. Negative pressure relief valve silencer; 39. Vacuum generator; 40. Power interface; 41. Air source interface; 42. Positive pressure detection port; 43. Positive pressure relief port; 44. No. 1 negative pressure detection port; 45. No. 2 negative pressure detection port; 46. No. 3 negative pressure detection port; 47. Negative pressure relief port; 48. Power switch; 49. Positive pressure timeout indicator light; 50. Positive pressure timeout setting knob; 51. Vacuum pumping timeout indicator light; 52. Vacuum pumping timeout setting knob; 53. Touch screen; 54. No. 1 counter; 55. No. 2 counter; 56. Moving roller; 57. Box exhaust port; 58. Box. Detailed implementation method

[0030] The following further describes the present utility model in conjunction with embodiments.

[0031] The following embodiments are used to illustrate the present utility model, but cannot be used to limit the protection scope of the present utility model. The conditions in the embodiments can be further adjusted according to specific conditions. Any simple improvement to the method of the present utility model under the premise of the concept of the present utility model belongs to the scope of protection required by the present utility model.

[0032] Please refer to Figures 1-9, the utility model provides a container detection system, including a main cabinet door 1, a positive pressure solenoid valve relay 2, a positive pressure relief solenoid valve relay 3, a No. 1 counter relay 4, a vacuum extraction solenoid valve relay 5, a negative pressure relief solenoid valve relay 6, a No. 2 counter relay 7, a No. 1 detection solenoid valve relay 8, a No. 2 detection solenoid valve relay 9, a No. 3 detection solenoid valve relay 10, a switching power supply 11, a control system 12, a positive pressure timeout time relay 13, a vacuum extraction timeout time relay 14, a positive pressure relief solenoid valve 15, a vacuum extraction solenoid valve 16, a negative pressure relief solenoid valve 17, a gas source pressure sensor 18, a positive pressure sensor 19, a No. 1 negative pressure sensor 20, a No. 2 negative pressure sensor 21, a No. 3 negative pressure sensor 22, a gas mass flowmeter 23, a positive pressure gas mass flowmeter 24, a rear cabinet door 25, a filter 26, an electro-pneumatic proportional valve 27, a pressure gauge 28, a positive pressure solenoid valve 29, a No. 1 detection solenoid valve 30, a No. 2 detection solenoid valve 31, a No. 3 detection solenoid valve 32, a positive pressure small flow regulating valve 33, a negative pressure small flow regulating valve 34, a positive pressure relief valve 35, a positive pressure relief valve silencer 36, a negative pressure relief valve 37, a negative pressure relief valve silencer 38, a vacuum generator 39, a power supply interface 40, a gas source interface 41, a positive pressure detection port 42, a positive pressure relief port 43, a No. 1 negative pressure detection port 44, a No. 2 negative pressure detection port 45, a No. 3 negative pressure detection port 46, a negative pressure relief port 47, a power switch 48, a positive pressure timeout indicator light 49, a positive pressure timeout setting knob 50, a vacuum extraction timeout indicator light 51, a vacuum extraction timeout setting knob 52, a touch screen 53, a No. 1 counter 54, a No. 2 counter 55, moving rollers 56, a box body exhaust port 57 and a box body 58. The filter 26, the electro-pneumatic proportional valve 27, the pressure gauge 28, the positive pressure solenoid valve 29, the No. 1 detection solenoid valve 30, the No. 2 detection solenoid valve 31, the No. 3 detection solenoid valve 32, the positive pressure small flow regulating valve 33, the negative pressure small flow regulating valve 34, the positive pressure relief valve 35, the positive pressure relief valve silencer 36, the negative pressure relief valve 37, the negative pressure relief valve silencer 38, the vacuum generator 39 and other detection components are arranged at the rear side inside the box body 58. A rear cabinet door 25 is arranged at the rear side of the box body 58, which is in a closed state usually to prevent non-professional personnel from damaging the detection components and affecting the system function.

[0033] The inlet end of the filter 26 is connected to the gas source interface 41 through a gas path, and the outlet end of the filter 26 is connected to the inlet end of the electro-pneumatic proportional valve 27. By setting the filter 26, the filter 26 can filter impurities such as oil and dust, improve the purity of the detected gas, thereby increasing the service life of the detection element and reducing the probability of damage to the detection element;

[0034] The outlet end of the electro-pneumatic proportional valve 27 is respectively connected to the pressure gauge 28, the gas source pressure sensor 18, the inlet end of the positive pressure relief solenoid valve 15, the inlet end of the gas mass flow meter 23, the inlet end of the vacuum solenoid valve 16, and the inlet end of the negative pressure relief solenoid valve 17 through gas paths. By setting the electro-pneumatic proportional valve 27, the electro-pneumatic proportional valve 27 can control the expected output air pressure by inputting values through the touch screen 53, and the actually output air pressure is displayed by the touch screen. Compared with the commonly used manual pressure regulating valve, the accuracy and precision are higher, and the input and output of the electro-pneumatic proportional valve 27 itself form a closed loop, which can realize self-checking, form a fault warning, and prevent air pressure deviation from affecting subsequent detections;

[0035] The outlet end of the positive pressure relief solenoid valve 15 is connected to the control end of the positive pressure relief valve 35 through a gas path. One end of the positive pressure relief valve 35 is connected to the box body exhaust port 57 through the positive pressure relief valve silencer 36, and the other end of the positive pressure relief valve 35 is connected to the positive pressure relief port 43 through a gas path. The inlet end of the positive pressure small flow regulating valve 33 is connected to the positive pressure relief port 43 through a gas path. By setting the positive pressure small flow regulating valve 33, the positive pressure small flow regulating valve 33 is suitable for quantitative detection of different positive pressure values in the same container, and the speed of releasing the gas in the detection container can be set according to the detection requirements. When the required pressure value for detection is reached, the positive pressure small flow regulating valve 33 is closed;

[0036] The outlet end of the positive pressure small flow regulating valve 33 is connected to the inlet end of the positive pressure gas mass flow meter 24 through a gas path, and the outlet end of the positive pressure gas mass flow meter 24 is connected to the box body exhaust port 57;

[0037] The outlet end of the gas mass flow meter 23 is connected to the inlet end of the positive pressure solenoid valve 29 through a gas path. By setting the gas mass flow meter 23, the gas mass flow meter 23 can be used to calculate the volume of gas entering the container to be detected, and the positive pressure gas mass flow meter 24 can be used to calculate the volume of gas released from the container to be detected, thereby realizing the detection of constant pressure containers and constant volume containers;

[0038] The outlet end of the positive pressure solenoid valve 29 is respectively connected to the positive pressure sensor 19 and the positive pressure detection port 42 through gas paths;

[0039] The outlet end of the vacuum solenoid valve 16 is pneumatically connected to the control end of the vacuum generator 39. The inlet of the vacuum generator 39 is respectively pneumatically connected to the inlet ends of the No. 1 detection solenoid valve 30, the No. 2 detection solenoid valve 31, and the No. 3 detection solenoid valve 32. The outlet end of the No. 1 detection solenoid valve 30 is respectively pneumatically connected to the No. 1 negative pressure sensor 20 and the No. 1 negative pressure detection port 44. The outlet end of the No. 2 detection solenoid valve 31 is respectively pneumatically connected to the No. 2 negative pressure sensor 21 and the No. 2 negative pressure detection port 45. The outlet end of the No. 3 detection solenoid valve 32 is respectively pneumatically connected to the No. 3 negative pressure sensor 22 and the No. 3 negative pressure detection port 46;

[0040] The outlet end of the negative pressure relief solenoid valve 17 is pneumatically connected to the control end of the negative pressure relief valve 37. One end of the negative pressure relief valve 37 is pneumatically connected to the box exhaust port 57 through the negative pressure relief valve silencer 38. The other end of the negative pressure relief valve 37 is pneumatically connected to the negative pressure relief port 47. By setting the positive pressure relief valve 35 and the negative pressure relief valve 37, the purpose of the positive pressure relief valve 35 and the negative pressure relief valve 37 is to quickly relieve pressure, so that the container can quickly return to normal pressure when only a single pressure detection is performed on the container;

[0041] The inlet end of the negative pressure small flow regulating valve 34 is pneumatically connected to the negative pressure relief port 47. The outlet end of the negative pressure small flow regulating valve 34 is connected to the box exhaust port 57. By setting the box exhaust port 57, the box exhaust port 57 can discharge the detected gas to ensure that the inside of the box 58 is always at normal pressure;

[0042] By setting the negative pressure small flow regulating valve 34, the negative pressure small flow regulating valve 34 is suitable for quantitative detection of different negative pressure values of the same container, and the speed of the gas entering the detection container can be set according to the detection requirements. When the required detection pressure value is reached, the negative pressure small flow regulating valve 34 is closed;

[0043] A partition is provided between the front side and the rear side inside the box 58. A plurality of moving rollers 56 are connected to the lower surface of the box 58. By setting the moving rollers 56, it is convenient to move;

[0044] Start and stop buttons are provided on the touch screen 53. By setting the touch screen 53, because start and stop buttons are provided on the touch screen 53, the touch screen 53 can display data such as the air source pressure value, the detection pressure value, the detection time, and the detection result, and can modify and set the data through the touch screen 53 according to the detection needs;

[0045] The positive pressure relief solenoid valve relay 3 is electrically connected to the positive pressure relief solenoid valve 15 and the No. 1 counter relay 4. The No. 1 counter relay 4 is electrically connected to the No. 1 counter 54. The positive pressure solenoid valve 29 is electrically connected to the positive pressure solenoid valve relay 2 and the positive pressure timeout relay 13. By setting the positive pressure timeout relay 13, the positive pressure timeout relay 13 is used to prevent damage caused by continuously pressurizing the test container when the control system 12 fails. The protection time can be set through the positive pressure timeout setting knob 50;

[0046] The positive pressure timeout relay 13 is electrically connected to the positive pressure timeout indicator light 49. The vacuum solenoid valve 16 is electrically connected to the vacuum solenoid valve relay 5 and the vacuum timeout relay 14. The vacuum timeout relay 14 is electrically connected to the vacuum timeout indicator light 51. By setting the vacuum timeout relay 14, the vacuum timeout relay 14 is used to prevent damage caused by evacuating the test container when the control system 12 fails. The protection time can be set through the vacuum timeout setting knob 52. The positive pressure timeout indicator light 49 and the vacuum timeout indicator light 51 are used to indicate faults. When the indicator light is on, it means that the action times out and the control system 12 is damaged;

[0047] The negative pressure relief solenoid valve relay 6 is electrically connected to the negative pressure relief solenoid valves 17 and the No. 2 counter relay 7. The No. 2 counter relay 7 is electrically connected to the No. 2 counter 55. The No. 1 detection solenoid valve 30 is electrically connected to the No. 1 detection solenoid valve relay 8. The No. 2 detection solenoid valve 31 is electrically connected to the No. 2 detection solenoid valve relay 9. The No. 3 detection solenoid valve 32 is electrically connected to the No. 3 detection solenoid valve relay 10. The electro-hydraulic proportional valve 27, the air source pressure sensor 18, the gas mass flow meter 23, the positive pressure relief solenoid valve relay 3, the positive pressure small flow regulating valve 33, the positive pressure gas mass flow meter 24, the positive pressure solenoid valve relay 2, the positive pressure sensor 19, the vacuum pumping solenoid valve relay 5, the No. 1 detection solenoid valve relay 8, the No. 1 negative pressure sensor 20, the No. 2 detection solenoid valve relay 9, the No. 2 negative pressure sensor 21, the No. 3 detection solenoid valve relay 10, the No. 3 negative pressure sensor 22, the negative pressure relief solenoid valve relay 6, the negative pressure small flow regulating valve 34, the touch screen 53, the No. 1 counter 54 and the No. 2 counter 55 are all electrically connected to the control system 12. The positive pressure solenoid valve relay 2, the positive pressure solenoid valve relay 2, the No. 1 counter relay 4, the vacuum pumping solenoid valve relay 5, the negative pressure relief solenoid valve relay 6, the No. 2 counter relay 7, the No. 1 detection solenoid valve relay 8, the No. 2 detection solenoid valve relay 9, the No. 3 detection solenoid valve relay 10, the switching power supply 11, the control system 12, the positive pressure timeout relay 13, the vacuum pumping timeout relay 14, the positive pressure relief solenoid valve 15, the vacuum pumping solenoid valve 16, the negative pressure relief solenoid valve 17, the air source pressure sensor 18, the positive pressure sensor 19, the No. 1 negative pressure sensor 20, the No. 2 negative pressure sensor 21, the No. 3 negative pressure sensor 22, the gas mass flow meter 23, the positive pressure gas mass flow meter 24. Because the positive pressure solenoid valve relay 2, the positive pressure solenoid valve relay 2, the No. 1 counter relay 4, the vacuum pumping solenoid valve relay 5, the negative pressure relief solenoid valve relay 6, the No. 2 counter relay 7, the No. 1 detection solenoid valve relay 8, the No. 2 detection solenoid valve relay 9, the No. 3 detection solenoid valve relay 10, the switching power supply 11, the control system 12, the positive pressure timeout relay 13, the vacuum pumping timeout relay 14, the positive pressure relief solenoid valve 15, the vacuum pumping solenoid valve 16, the negative pressure relief solenoid valve 17, the air source pressure sensor 18, the positive pressure sensor 19, the No. 1 negative pressure sensor 20, the No. 2 negative pressure sensor 21, the No. 3 negative pressure sensor 22, the gas mass flow meter 23, the positive pressure gas mass flow meter 24 and other electrical components are arranged on the front side inside the box body 58. A main cabinet door 1 is arranged on the front side of the box body 58, which is in a closed state usually to prevent non-professionals from modifying the detection parameters and damaging the components, affecting the system function; By setting the No. 1 counter 54 and the No. 2 counter 55, the No. 1 counter 54 and the No. 2 counter 55 can be used to indicate the number of cycles during the container life cycle test;By setting the air source pressure sensor 18, the detected pressure value of the air source pressure sensor 18 can be displayed on the touch screen 53 and compared with the expected output pressure value of the electro-hydraulic proportional valve 27. When the difference is too large, a fault indication is output and the detection system is unavailable, so as to improve the detection accuracy. At this time, the pressure value can be calibrated with the pressure gauge 28 to confirm the damage of the air source pressure sensor 18 or the electro-hydraulic proportional valve 27.;

[0048] The working principle and usage process of the present utility model: When the detection container is a positive pressure detection container, connect the air inlet of the detection container to the positive pressure detection port 42 and the air outlet to the positive pressure pressure relief port 43. If the detection container has only one detection port, connect the positive pressure detection port 42, the positive pressure pressure relief port 43 and the container detection port together;

[0049] ① When detecting the volume of the detection container, select the corresponding function on the touch screen 53 and set the speed of releasing the gas in the detection container. Then, the gas mass flowmeter 23 and the positive pressure gas mass flowmeter 24 start to work. The positive pressure solenoid valve relay 2 is energized, thus controlling the opening of the positive pressure solenoid valve 29. At this time, positive pressure gas is supplied to the detection container. Meanwhile, the positive pressure small flow regulating valve 33 opens at an angle according to the set parameters;

[0050] After the positive pressure gas mass flowmeter 24 detects that gas has passed through for a period of time, close the positive pressure solenoid valve 29 and the positive pressure small flow regulating valve 33. At this time, the difference between the gas volume passed through by the gas mass flowmeter 23 and the gas volume passed through by the positive pressure gas mass flowmeter 24 is the volume of the detection container;

[0051] ② When it is necessary to output positive pressure gas quantitatively and with a fixed volume, select the corresponding function on the touch screen 53 and input the required gas volume. Then, the gas mass flowmeter 23 starts to work. The positive pressure solenoid valve relay 2 is energized, thus controlling the opening of the positive pressure solenoid valve 29. At this time, positive pressure gas is supplied to the detection container. When the set value is reached, close the positive pressure solenoid valve 29;

[0052] ③ When detecting containers with different positive pressure requirements, select the corresponding function on the touch screen 53 and input the target pressure value. Then, the positive pressure sensor 19 starts to work. The positive pressure solenoid valve relay 2 is energized, thus controlling the opening of the positive pressure solenoid valve 29. At this time, positive pressure gas is supplied to the detection container. When the target pressure value is reached, close the positive pressure solenoid valve 29;

[0053] ④When quantitatively detecting different positive pressure values of the same container, select the corresponding function on the touch screen 53, and input different positive pressure values and detection time according to the detection requirements. Then, the positive pressure sensor 19 starts to work, and the positive pressure solenoid valve relay 2 is energized, thus controlling the opening of the positive pressure solenoid valve 29. At this time, positive pressure gas is supplied to the detection container. When the first target pressure value is reached, the positive pressure solenoid valve 29 is closed, and the first-stage timing starts. After reaching the first pressure value detection time, if the second target pressure value is less than the first target pressure value, the positive pressure small flow regulating valve 33 is opened, and the positive pressure sensor 19 monitors the pressure in the detection container in real time. When the second target pressure value is reached, the positive pressure small flow regulating valve 33 is closed, and the second-stage timing starts;

[0054] If the second target pressure value is greater than the first target pressure value, the positive pressure solenoid valve 29 is opened, and the positive pressure sensor 19 monitors the pressure in the detection container in real time. When the second target pressure value is reached, the positive pressure solenoid valve 29 is closed, and the second-stage timing starts. And so on, the working conditions of multiple pressure values of the same container can be detected;

[0055] ⑤When performing fatigue test and life detection, select the corresponding function on the touch screen 53, and input the detection pressure value and the number of cycles according to the detection requirements. Then, the gas mass flowmeter 23, the positive pressure sensor 19, and the positive pressure solenoid valve relay 2 are energized, and the positive pressure solenoid valve 29 is opened. At this time, positive pressure gas is supplied to the detection container;

[0056] When the detection pressure value is reached, the positive pressure solenoid valve 29 is closed, and the positive pressure relief solenoid valve relay 3 is energized to control the opening of the positive pressure relief solenoid valve 15, thus controlling the opening of the positive pressure relief valve 35. The gas in the detection container is discharged and restored to the normal pressure state. The positive pressure relief solenoid valve relay 3 controls the 1st counter relay 4 to act, and the count of the 1st counter 54 is incremented by 1. This cycle continues until the count of the 1st counter 54 reaches the target number of cycles, or the detection container is damaged and does not meet the fatigue test cycle number. Then, the gas mass flowmeter 23, the positive pressure solenoid valve relay 2, the positive pressure solenoid valve 29, the positive pressure sensor 19, the positive pressure relief solenoid valve relay 3, the positive pressure relief solenoid valve 15, the positive pressure relief valve 35, the 1st counter relay 4, and the 1st counter 54 all stop operating;

[0057] ⑥When performing container airtightness detection, select the corresponding function on the touch screen 53, and input the detection pressure value, detection time, and judgment criteria according to the detection requirements. Then, the gas mass flowmeter 23, the positive pressure sensor 19, and the positive pressure solenoid valve relay 2 are energized, and the positive pressure solenoid valve 29 is opened. At this time, positive pressure gas is supplied to the detection container;

[0058] When the detection pressure value is reached, the positive pressure solenoid valve 29 is closed, and the timing starts. At this time, the positive pressure sensor 19 monitors the pressure value in the detection container in real time;

[0059] When the detection time is reached, the pressure value at this time is compared with the pressure value before timing. If the difference is greater than the determination criterion, the airtightness of the detection container is unqualified;

[0060] If the difference is less than the determination criterion, the airtightness of the detection container is qualified. After determining the detection result, the positive pressure relief solenoid valve relay 3 is energized, controlling the positive pressure relief solenoid valve 15 to open, thereby controlling the positive pressure relief valve 35 to open, and the gas in the detection container is discharged and restored to the atmospheric pressure state;

[0061] When the detection container is a negative pressure detection container, taking the connection of one container as an example (the principle of detecting multiple containers is the same and will not be elaborated), the air inlet of the detection container is respectively connected to the No. 1 negative pressure detection port 44 (taking this as an example, it can also be connected to the No. 2 negative pressure detection port 45, the No. 3 negative pressure detection port 46), and the air outlet is connected to the negative pressure relief port 47 (if the detection container has only one detection port, the No. 1 negative pressure detection port 44, the negative pressure relief port 47 and the container detection port are connected together);

[0062] ① When detecting containers with different negative pressure requirements, select the corresponding function on the touch screen 53, and after inputting the target pressure value, the No. 1 negative pressure sensor 20 starts to work, the No. 1 detection solenoid valve relay 8 is energized, controlling the No. 1 detection solenoid valve 30 to open. At this time, the vacuum pumping solenoid valve relay 5 is energized, thereby controlling the vacuum pumping solenoid valve 16 to open. At this time, the vacuum generator 39 starts to work, creating a negative pressure environment for the detection container. When the target pressure value is reached, the vacuum pumping solenoid valve 16 and the No. 1 detection solenoid valve 30 are closed;

[0063] ② When quantitatively detecting different negative pressure values of the same container, select the corresponding function on the touch screen 53, and after inputting different negative pressure values and detection time according to the detection requirements, the No. 1 negative pressure sensor 20 starts to work, the No. 1 detection solenoid valve relay 8 is energized, controlling the No. 1 detection solenoid valve 30 to open, the vacuum pumping solenoid valve relay 5 is energized, thereby controlling the vacuum pumping solenoid valve 16 to open. At this time, the vacuum generator 39 starts to work, creating a negative pressure environment for the detection container;

[0064] After reaching the first target pressure value, the vacuum solenoid valves 16 and the No. 1 detection solenoid valve 30 are closed, and the first-stage timing starts. After reaching the first pressure value detection time, if the second target pressure value is greater than the first target pressure value, the negative pressure small flow regulating valve 34 is opened, and the No. 1 negative pressure sensor 20 monitors the pressure in the detection container in real time. After reaching the second target pressure value, the negative pressure small flow regulating valve 34 is closed, and the second-stage timing starts; if the second target pressure value is less than the first target pressure value, the vacuum solenoid valves 16 and the No. 1 detection solenoid valve 30 are opened, and the No. 1 negative pressure sensor 20 monitors the pressure in the detection container in real time. After reaching the second target pressure value, the vacuum solenoid valves 16 and the No. 1 detection solenoid valve 30 are closed, and the second-stage timing starts. By analogy, the working conditions of multiple pressure values of the same container can be detected;

[0065] ③ When performing fatigue tests and life detections, select the corresponding function on the touch screen 53, and after inputting the detection pressure value and the number of cycles according to the detection requirements, the vacuum solenoid valve relay 5, the No. 1 negative pressure sensor 20, and the No. 1 detection solenoid valve relay 8 are energized, and the vacuum solenoid valves 16 and the No. 1 detection solenoid valve 30 are opened. At this time, a negative pressure environment is created for the detection container;

[0066] After reaching the detection pressure value, the vacuum solenoid valves 16 and the No. 1 detection solenoid valve 30 are closed, the negative pressure relief solenoid valve relay 6 is energized, the negative pressure relief solenoid valve 17 is controlled to open, so as to control the negative pressure relief valve 37 to open, and the detection container returns to the normal pressure state. At the same time, the negative pressure relief solenoid valve relay 6 controls the No. 2 counter relay 7 to act, and the count of the No. 2 counter 55 is incremented by 1. The cycle continues until the count of the No. 2 counter 55 reaches the target number of cycles, or the detection container is damaged and does not meet the fatigue test cycle times. Then, the vacuum solenoid valve relay 5, the No. 1 negative pressure sensor 20, the No. 1 detection solenoid valve relay 8, the vacuum solenoid valves 16, the No. 1 detection solenoid valve 30, the negative pressure relief solenoid valve relay 6, the negative pressure relief solenoid valve 17, the negative pressure relief valve 37, the No. 2 counter relay 7, and the No. 2 counter 55 all stop operating;

[0067] ④ When performing container airtightness detection, select the corresponding function on the touch screen 53, and after inputting the detection pressure value, the detection time, and the judgment criterion according to the detection requirements, the vacuum solenoid valve relay 5, the No. 1 negative pressure sensor 20, and the No. 1 detection solenoid valve relay 8 are energized, and the vacuum solenoid valves 16 and the No. 1 detection solenoid valve 30 are opened. At this time, a negative pressure environment is created for the detection container;

[0068] After reaching the detection pressure value, the vacuum solenoid valves 16 and the No. 1 detection solenoid valve 30 are closed, and the timing starts. At this time, the No. 1 negative pressure sensor 20 monitors the pressure value in the detection container in real time;

[0069] When the detection time is reached, the pressure value at this time is compared with the pressure value before timing. If the difference is greater than the determination criterion, the airtightness of the container is unqualified. If the difference is less than the determination criterion, the airtightness of the container is qualified. After the detection result is determined, the negative pressure relief solenoid valve relay 6 is energized to control the opening of the negative pressure relief solenoid valve 17, thereby controlling the opening of the negative pressure relief valve 37, and the detected container returns to the normal pressure state.

[0070] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A container detection system, comprising a main cabinet door (1), a positive pressure solenoid valve relay (2), a positive pressure relief solenoid valve relay (3), a No. 1 counter relay (4), a vacuum solenoid valve relay (5), a negative pressure relief solenoid valve relay (6), a No. 2 counter relay (7), a No. 1 detection solenoid valve relay (8), a No. 2 detection solenoid valve relay (9), a No. 3 detection solenoid valve relay (10), a switch power supply (11), a control system (12), a positive pressure timeout relay (13), a vacuum timeout relay (14), a positive pressure relief solenoid valve (15), a vacuum solenoid valve (16), a negative pressure relief solenoid valve (17), a gas source pressure sensor (18), a positive pressure sensor (19), a No. 1 negative pressure sensor (20), a No. 2 negative pressure sensor (21), a No. 3 negative pressure sensor (22), a gas mass flow meter (23), a positive pressure gas mass flow meter (24), a rear cabinet door (25), a filter (26), an electric proportional valve (27), a pressure gauge ( 28), positive pressure solenoid valve (29), No. 1 detection solenoid valve (30), No. 2 detection solenoid valve (31), No. 3 detection solenoid valve (32), positive pressure small flow regulating valve (33), negative pressure small flow regulating valve (34), positive pressure relief valve (35), positive pressure relief valve silencer (36), negative pressure relief valve (37), negative pressure relief valve silencer (38), vacuum generator (39), power supply interface (40), air source interface (41), positive pressure detection port (42), positive pressure relief port (43 ), No. 1 negative pressure detection port (44), No. 2 negative pressure detection port (45), No. 3 negative pressure detection port (46), negative pressure relief port (47), power switch (48), positive pressure timeout indicator light (49), positive pressure timeout setting knob (50), vacuum timeout indicator light (51), vacuum timeout setting knob (52), touch screen (53), No. 1 counter (54), No. 2 counter (55), moving roller (56), box exhaust port (57) and box (58), characterized in that: The inlet end of the filter (26) is connected to the gas circuit of the gas source interface (41), the outlet end of the filter (26) is connected to the inlet end of the electric proportional valve (27), and the outlet end of the electric proportional valve (27) is respectively connected to the pressure gauge (28), the gas source pressure sensor (18), the inlet end of the positive pressure relief solenoid valve (15), the inlet end of the gas mass flow meter (23), the inlet end of the vacuum solenoid valve (16) and the inlet end of the negative pressure relief solenoid valve (17); The outlet end of the positive pressure relief solenoid valve (15) is connected to the gas circuit of the control end of the positive pressure relief valve (35); one end of the positive pressure relief valve (35) is connected to the gas circuit of the box exhaust port (57) via the positive pressure relief valve muffler (36); the other end of the positive pressure relief valve (35) is connected to the gas circuit of the positive pressure relief port (43); the inlet end of the positive pressure small flow regulating valve (33) is connected to the gas circuit of the positive pressure relief port (43); the outlet end of the positive pressure small flow regulating valve (33) is connected to the gas circuit of the inlet end of the positive pressure gas mass flow meter (24); and the outlet end of the positive pressure gas mass flow meter (24) is connected to the box exhaust port (57); The outlet end of the gas mass flow meter (23) is connected to the inlet end of the positive pressure solenoid valve (29) through a gas circuit, and the outlet end of the positive pressure solenoid valve (29) is connected to the positive pressure sensor (19) and the positive pressure detection port (42) through a gas circuit respectively; The outlet end of the vacuum solenoid valve (16) is connected to the control end of the vacuum generator (39) by gas circuit, the inlet of the vacuum generator (39) is connected to the inlet ends of the No. 1 detection solenoid valve (30), the inlet end of the No. 2 detection solenoid valve (31) and the inlet end of the No. 3 detection solenoid valve (32) by gas circuit respectively, the outlet end of the No. 1 detection solenoid valve (30) is connected to the No. 1 negative pressure sensor (20) and the No. 1 negative pressure detection port (44) by gas circuit respectively, the outlet end of the No. 2 detection solenoid valve (31) is connected to the No. 2 negative pressure sensor (21) and the No. 2 negative pressure detection port (45) by gas circuit respectively, and the outlet end of the No. 3 detection solenoid valve (32) is connected to the No. 3 negative pressure sensor (22) and the No. 3 negative pressure detection port (46) by gas circuit respectively; The outlet end of the negative pressure relief solenoid valve (17) is connected to the air circuit of the control end of the negative pressure relief valve (37); one end of the negative pressure relief valve (37) is connected to the air circuit of the box exhaust port (57) via the negative pressure relief valve muffler (38); the other end of the negative pressure relief valve (37) is connected to the air circuit of the negative pressure relief port (47); the inlet end of the negative pressure small flow regulating valve (34) is connected to the air circuit of the negative pressure relief port (47); and the outlet end of the negative pressure small flow regulating valve (34) is connected to the box exhaust port (57).

2. A container detection system according to claim 1, characterized in that: The positive pressure relief solenoid valve relay (3) is electrically connected to the positive pressure relief solenoid valve (15) and the No. 1 counter relay (4), and the No. 1 counter relay (4) is electrically connected to the No. 1 counter (54).

3. A container detection system according to claim 1, characterized in that: The positive pressure solenoid valve (29) is electrically connected to the positive pressure solenoid valve relay (2) and the positive pressure timeout relay (13), and the positive pressure timeout relay (13) is electrically connected to the positive pressure timeout indicator light (49).

4. A container detection system according to claim 1, characterized in that: The vacuum solenoid valve (16) is electrically connected to the vacuum solenoid valve relay (5) and the vacuum timeout relay (14), and the vacuum timeout relay (14) is electrically connected to the vacuum timeout indicator light (51).

5. A container detection system according to claim 1, characterized in that: The negative pressure relief solenoid valve relay (6) is electrically connected to the negative pressure relief solenoid valve (17) and the No. 2 counter relay (7), and the No. 2 counter relay (7) is electrically connected to the No. 2 counter (55).

6. A container detection system according to claim 1, characterized in that: The No. 1 detection solenoid valve (30) is electrically connected to the No. 1 detection solenoid valve relay (8), the No. 2 detection solenoid valve (31) is electrically connected to the No. 2 detection solenoid valve relay (9), and the No. 3 detection solenoid valve (32) is electrically connected to the No. 3 detection solenoid valve relay (10).

7. A container detection system according to claim 1, characterized in that: The electrical proportional valve (27), the gas source pressure sensor (18), the gas mass flow meter (23), the positive pressure relief solenoid valve relay (3), the positive pressure small flow regulating valve (33), the positive pressure gas mass flow meter (24), the positive pressure solenoid valve relay (2), the positive pressure sensor (19), the vacuum solenoid valve relay (5), the No. 1 detection solenoid valve relay (8), the No. 1 negative pressure sensor (20), the No. 2 detection solenoid valve relay (9), the No. 2 negative pressure sensor (21), the No. 3 detection solenoid valve relay (10), the No. 3 negative pressure sensor (22), the negative pressure relief solenoid valve relay (6), the negative pressure small flow regulating valve (34), the touch screen (53), the No. 1 counter (54) and the No. 2 counter (55) are all electrically connected to the control system (12).

8. A container detection system according to claim 1, characterized in that: A partition is provided between the front side and the rear side of the box body (58).

9. A container detection system according to claim 1, characterized in that: The lower surface of the box body (58) is connected to a plurality of movable rollers (56).

10. A container detection system according to claim 1, characterized in that: The touch screen (53) is provided with start and stop buttons.

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