A testing system for a bottle valve

Abstract

The application discloses a kind of test systems of bottle valve, it is related to valve testing technical field;Including: opening and closing test component, containing chamber, control component, leakage detection component, gas source and air processing component;Containing chamber is sealed cavity, and is configured to accommodate to place the valve to be measured;Air processing component is used to communicate with containing chamber, to adjust the air parameter in containing chamber, wherein, air parameter includes: temperature;Opening and closing test component is used to drive the opening and closing of valve to be measured;Gas source is used to communicate with the air inlet end of valve to be measured;Leakage detection component is used to detect the leakage state of valve to be measured;Control component is electrically connected with air processing component, opening and closing test component, gas source and leakage detection component, to control air processing component, opening and closing test component, gas source and leakage detection component operation according to test requirement.This scheme simulates the temperature of bottle valve actual working environment, so that the test result of bottle valve is more accurate.

Description

Technical Field

[0001] This application relates to the field of valve testing technology, and in particular to a testing system for bottle valves. Background Technology

[0002] Currently, in the industry, testing of cylinder valves can only be conducted at room temperature in the laboratory. However, room temperature testing cannot cover the actual use environment of the product, because the actual working environment of gas cylinder valves can vary from high to low temperatures.

[0003] Therefore, how to provide a test system to simulate the operation of a product under actual environmental temperatures is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] This application proposes a test system for bottle valves that simulates the actual working environment temperature of the bottle valves, making the test results of the bottle valves more accurate.

[0005] To achieve the above objectives, this application discloses the following technical solutions:

[0006] A test system for a bottle valve includes: an opening and closing test assembly, a containment chamber, a control assembly, a leak detection assembly, a gas source, and an air handling assembly;

[0007] The receiving chamber is a sealed cavity and is configured to house the valve to be tested;

[0008] The air handling unit is configured to communicate with the containment chamber to regulate air parameters within the containment chamber, wherein the air parameters include: temperature;

[0009] The opening and closing test assembly is used to drive the valve under test to open and close.

[0010] The gas source is used to connect to the air inlet of the valve under test;

[0011] The leakage detection component is used to detect the leakage status of the valve under test;

[0012] The control component is electrically connected to the air handling component, the opening and closing test component, the air source, and the leak detection component to control the operation of the air handling component, the opening and closing test component, the air source, and the leak detection component according to test requirements.

[0013] Preferably, the air handling assembly includes: a refrigeration device, a heating device, and an air circulation device;

[0014] The control component controls the opening and closing of the refrigeration equipment and / or heating equipment according to the test requirements, and the control component controls the air circulation equipment to deliver the cold air blown out by the refrigeration equipment and / or the hot air blown out by the heating equipment to the containment chamber according to the test requirements.

[0015] Preferably, the leak detection assembly includes a leak detection device disposed in the containment chamber.

[0016] Preferably, the leak detection component includes: a first solenoid valve, a second solenoid valve, a first pressure sensor, and a second pressure sensor;

[0017] The control component controls the opening and closing of the first solenoid valve so that the gas from the gas source can enter the valve under test. The first pressure sensor is set on the air intake passage between the gas source and the air intake end of the valve under test to detect the air pressure in the air intake passage.

[0018] The self-closing passage of the valve under test is provided with a second solenoid valve and a second pressure sensor. The second pressure sensor is used to detect the air pressure in the self-closing passage, and the control component controls the opening and closing of the second solenoid valve.

[0019] Alternatively, the leak detection assembly may include: a first solenoid valve and a first pressure sensor;

[0020] The control component controls the opening and closing of the first solenoid valve to allow gas from the gas source to enter the valve under test. The first pressure sensor is installed in the air intake passage between the gas source and the air intake end of the valve under test to detect the air pressure in the air intake passage.

[0021] Preferably, the opening and closing test assembly includes: a drive component, a drive head, a torque detection component, and an angle detection component;

[0022] The drive head includes a locking position that cooperates with the operating handle of the valve under test. The drive head is located at the power output end of the drive component to drive the valve under test to open and close by rotation.

[0023] The torque detection element is located between the drive element and the drive head to detect the torque value of the drive head;

[0024] The rotation angle detection element is located at the power output end of the drive element to detect the rotation angle of the drive head.

[0025] Preferably, the test system further includes a temperature sensor; the temperature sensor is used to detect the temperature value of the containment chamber.

[0026] Preferably, the test system further includes: a self-closing test component;

[0027] The self-closing test assembly is used to drive the opening and closing of the self-closing device of the valve under test;

[0028] The control component and the self-closing test component are electrically connected to control the operation of the self-closing test component according to the test requirements.

[0029] Preferably, the self-closing test assembly includes an actuator and a power component. The first end of the actuator is connected to the self-closing device, and the power component drives the actuator to reciprocate linearly to realize the opening and closing of the self-closing device of the valve under test.

[0030] Preferably, the power component includes: an air pump, an accumulator, an air source processor, a solenoid valve, and a cylinder connected in sequence;

[0031] The gas pump provides the driving gas, the accumulator stabilizes the gas pressure, the gas source processor filters the driving gas, the control component is electrically connected to the solenoid valve to control the operation of the solenoid valve according to the test requirements, and the cylinder has a second end of the actuator that slides along its axial direction to drive the actuator to reciprocate linearly.

[0032] Preferably, the test system further includes a humidity sensor for detecting indoor humidity values.

[0033] As can be seen from the above technical solution, by utilizing the synergistic effect between the opening and closing test components, the containment chamber, the control components, the leakage detection components, the air source, and the air treatment components, the durability test of the valve under test can be achieved. Among them, the synergistic effect between the control components and the air treatment components can simulate the actual working environment temperature of the valve, making the test results of the valve more accurate. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort, and this application can be applied to other similar scenarios based on the provided drawings, all of which fall within the scope of protection of this utility model. Unless obvious from the linguistic context or otherwise specified, the same reference numerals in the drawings represent the same structure or operation.

[0035] Figure 1 This is a schematic diagram of the testing system provided in the embodiments of this application;

[0036] Figure 2 A schematic diagram of a durability test provided in an embodiment of this application;

[0037] Figure 3 A schematic diagram of the autism test provided in the embodiments of this application;

[0038] Figure 4 A schematic diagram illustrating the temperature change pattern provided in the embodiments of this application;

[0039] Figure 5 A schematic diagram of leakage detection for durability testing provided in an embodiment of this application;

[0040] Figure 6 This is a front view of the test apparatus corresponding to the test system provided in the embodiments of this application;

[0041] Figure 7 This is a side view of the test apparatus corresponding to the test system provided in the embodiments of this application;

[0042] Figure 8 This is a schematic diagram of the human-machine interface of the testing system provided in the embodiments of this application;

[0043] Figure 9 This is a flowchart of the control method for this experiment.

[0044] in:

[0045] 10 is the opening and closing test component, 11 is the driving component, 12 is the driving head, 13 is the torque detection component, and 14 is the angle detection component;

[0046] 20 is the storage room, and 21 is the storage section;

[0047] 30 represents the control components;

[0048] 40 is a leak detection component, 41 is a first solenoid valve, 42 is a second solenoid valve, 43 is a first pressure sensor, 44 is a second pressure sensor, and 45 is a leak detection device.

[0049] 50 is the gas source;

[0050] 60 represents the valve to be tested;

[0051] 70 is the self-closing test component, 71 is the actuator, 72 is the power component, 721 is the air pump, 722 is the accumulator, 723 is the air source processor, 724 is the solenoid valve, and 725 is the cylinder.

[0052] 80 is an air handling unit, 81 is a refrigeration unit, 82 is a heating unit, and 83 is an air circulation unit;

[0053] 90 is a temperature sensor;

[0054] 100 is the human-computer interface. Detailed Implementation

[0055] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. The described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without inventive effort are within the scope of protection of the present application.

[0056] For the purposes of this application, the following structures are described in detail with reference to the accompanying drawings:

[0057] like Figures 1 to 8 As shown, this application provides a test system for a bottle valve, which may include an opening and closing test component 10, a receiving chamber 20, a control component 30, a leakage detection component 40, an air source 50, and an air treatment component 80; the receiving chamber 20 is a sealed cavity and is configured to receive and place the valve under test 60; wherein, the valve under test 60 may include: a valve body, a valve core, an operating handle, an air inlet end, and an air outlet end (i.e., a self-closing end).

[0058] An air handling unit 80 is used to communicate with a housing chamber 20 to regulate air parameters within the housing chamber 20, wherein the air parameters may include temperature; an opening / closing test unit 10 is used to drive the valve under test 60 to open and close; an air source 50 is used to communicate with the air inlet of the valve under test 60; a leak detection unit 40 is used to detect the leakage status of the valve under test 60; and a control unit 30 is electrically connected to the air handling unit 80, the opening / closing test unit 10, the air source 50, and the leak detection unit 40 to control the operation of the air handling unit 80, the opening / closing test unit 10, the air source 50, and the leak detection unit 40 according to test requirements.

[0059] In the above technical solution, the valve under test 60 is placed in the housing chamber 20, and the air inlet of the valve under test 60 is connected to the air source 50. The leakage detection component 40 can be set next to the valve under test 60 and connected to the opening and closing test component 10 and the valve under test 60. During the test, the control component 30 controls the operation of the air treatment component 80, the opening and closing test component 10, the air source 50 and the leakage detection component 40 according to the test requirements, thereby enabling the durability test of the valve under test 60.

[0060] It should be noted that the control component 30 can control the air handling component 80, the opening and closing test component 10, the air source 50, and the leak detection component 40 to operate according to a set pattern according to the test requirements. This preset pattern can be understood as the operation of the air handling component 80 to maintain a preset temperature within the containment chamber 20; the preset pattern can be understood as the number or frequency of times the valve under test opens at a specific temperature; the preset pattern can be understood as the opening of the leak detection component 40 under specific conditions; and the preset pattern can be understood as the opening of the air source 50 under specific conditions. The leak status can include: whether a leak has occurred, and the amount of leakage from the valve under test 60.

[0061] For example, with the air handling unit 80 in operation, to maintain the containment chamber 20 at a preset temperature, the air handling unit 80 maintains the air temperature in the containment chamber 20 at a preset value, which can be any value between -50℃ and 150℃, to conduct a durability test on the valve under test 60. In this case, the control unit 30 uses the opening and closing test unit 10 to control the opening and closing of the valve under test 60. After reaching a preset number of times, the leakage detection unit 40 detects the leakage status of the valve under test 60. In this way, the test system can simulate the actual working environment temperature of the bottle valve, making the test results of the bottle valve more accurate.

[0062] In one of the alternative technical solutions, such as Figure 1 and Figure 7 As shown, the air handling assembly 80 may include a refrigeration device 81 and a heating device 82, wherein the refrigeration device 81 is used to cool the air, and the heating device is used to heat the air. The heat exchange components of the refrigeration device 81 and the heating device 82 may be arranged on the wall of the receiving chamber 20 to directly heat or cool the air within the receiving chamber 20. Alternatively, in some examples of this application, the air handling assembly 80, in addition to including the refrigeration device 81 and the heating device 82, may also include an air circulation device 83 for supplying heated or cooled air into the receiving chamber 20.

[0063] The control component 30 controls the opening and closing of the refrigeration equipment 81 and / or the heating equipment 82 according to the test requirements, and the control component 30 controls the air circulation equipment 83 to deliver the cold air blown out by the refrigeration equipment 81 and / or the hot air blown out by the heating equipment 82 to the containment chamber 20 according to the test requirements. It should be noted that the control component 30 can control the air circulation device 83 to deliver the cold air blown out by the cooling device 81 and / or the hot air blown out by the heating device 82 into the containment chamber 20 according to the test requirements, based on a first preset rule. The first preset rule includes: a first correspondence between time and temperature, a second correspondence between time and temperature, a third correspondence between time and temperature, and a fourth correspondence between time and temperature, cyclically repeated according to a preset number of cycles. Specifically, the first correspondence ensures that the temperature inside the containment chamber 20 remains at a first preset temperature for a preset time; the second correspondence ensures that the temperature inside the containment chamber 20 remains at a second preset temperature for a preset time; the third correspondence ensures that the temperature inside the containment chamber 20 remains at a third preset temperature for a preset time; and the fourth correspondence ensures that the temperature inside the containment chamber 20 remains at a fourth preset temperature for a preset time. The preset time duration can be set as needed and is not limited, for example, it can be one hour and fifteen minutes, two hours, or three hours, etc. The first preset temperature can be 20 degrees, 25 degrees, or 30 degrees, the second preset temperature can be 50 degrees, 55 degrees, or 60 degrees, the third preset temperature can be 20 degrees, 25 degrees, or 30 degrees, etc., and the fourth preset temperature can be -40 degrees, -45 degrees, or -50 degrees, etc. In a specific embodiment, the first preset temperature is 20 degrees (i.e., simulating spring), the second preset temperature is 60 degrees (i.e., simulating summer), the third preset temperature is 20 degrees (i.e., simulating autumn), and the fourth preset temperature is -40 degrees (i.e., simulating winter), and the preset time is one hour. In addition, the air handling unit 80 allows the temperature rise and fall rate inside the containment chamber 20 to reach 5°C / min.

[0064] In one of the alternative technical solutions, such as Figure 2 and Figure 3 As shown, the leak detection component 40 may include a leak detection device 45 disposed within the containment chamber 20. In use, after a preset number of opening and closing cycles of the valve under test 60, if the leak detection device 45 detects a leak, it sends a leak signal to the control component 30. The control component 30 controls an alarm device to sound an alarm based on the leak signal. This alarm device may include an alarm light and a buzzer. Preferably, the leak detection device 45 may be a mass spectrometer. The gas supplied by the gas source 50 to the valve under test 60 is helium. The mass spectrometer is used to detect the presence of helium in the containment chamber 20 to determine whether a leak has occurred in the containment chamber 20. It should be noted that when the leak detection device 45 is performing detection, the valve under test 60 is in the closed state.

[0065] In one of the alternative technical solutions, such as Figure 2 As shown, the leak detection assembly 40 may include: a first solenoid valve 41, a second solenoid valve 42, a first pressure sensor 43, and a second pressure sensor 44.

[0066] The control component 30 controls the opening and closing of the first solenoid valve 41 so that the gas from the gas source 50 can enter the valve under test 60. The first pressure sensor 43 is set on the air intake passage between the gas source 50 and the air intake end of the valve under test 60 to detect the air pressure in the air intake passage.

[0067] A second solenoid valve 42 and a second pressure sensor 44 are provided on the self-closing passage of the self-closing end of the valve under test 60. The second pressure sensor 44 detects the air pressure in the self-closing passage, and the control component 30 controls the opening and closing of the second solenoid valve 42.

[0068] In this technical solution, when performing a durability test on the valve 60 under test, the opening and closing test assembly 10 closes the valve 60 under test, the second solenoid valve 42 closes, the first solenoid valve 41 opens, the air source 50 fills the valve 60 under test with gas, and then closes the first solenoid valve 41, so that the air passage between the first solenoid valve 41 and the second solenoid valve 42 is sealed. The first pressure sensor 43 and the second pressure sensor 44, which are set between the first solenoid valve 41 and the second solenoid valve 42, detect the air pressure on the sealed air passage. If the air pressure is gradually decreasing, the valve 60 under test is leaking. It should be noted that in this technical solution, the control assembly 30 controls the first solenoid valve 41 and the second solenoid valve 42 to operate according to a fourth preset law. The fourth preset law may include opening and closing the first solenoid valve 41 and the second solenoid valve 42 at preset intervals.

[0069] Alternatively, the control component 30 controls the opening and closing of the first solenoid valve 41 to allow gas from the gas source 50 to enter the valve under test 60. The first pressure sensor 43 is located in the air intake passage between the gas source 50 and the air intake end of the valve under test 60 to detect the air pressure in the air intake passage. In this technical solution, when performing a durability test on the valve under test 60, the opening and closing test component 10 closes the valve under test 60, the first solenoid valve 41 opens, the gas source 50 fills the valve under test 60 with gas, and then closes the first solenoid valve 41, forming a closed passage in the air intake passage. The first pressure sensor 43 detects the air pressure in the closed passage. If the air pressure gradually decreases, the valve under test 60 is leaking. In this technical solution, the control component 30 can control the first solenoid valve 41 to operate according to a fourth preset rule, which may include opening and closing the first solenoid valve 41 at preset intervals.

[0070] In one of the alternative technical solutions, such as Figure 2 and Figure 6 As shown, the opening and closing test assembly 10 may include: a drive component 11, a drive head 12, a torque detection component 13, and an angle detection component 14;

[0071] The drive head 12 may include a locking position that cooperates with the operating handle of the valve under test 60. The drive head 12 is located at the power output end of the drive member 11 so as to drive the valve under test 60 to open and close by rotating it.

[0072] Torque detection element 13 is located between drive element 11 and drive head 12 to detect the torque value of drive head 12;

[0073] Angle detection element 14 is located at the power output end of drive element 11 to detect the rotation angle of drive head 12.

[0074] In the above technical solution, during use, the control component 30 and the drive component 11 are electrically connected. The drive component 11 can be controlled to operate according to a second preset rule based on test requirements. Specifically, the control component 30 sends a forward or reverse rotation command to the drive component 11, which then opens and closes the valve 60 under test based on the command. The opening angle of the valve 60 under test can be controlled according to test requirements to meet various experimental needs. The second preset rule may include: at a specific temperature, the drive component 11 cyclically rotates forward or reverse to allow the valve 60 under test to reach a preset number of opening and closing cycles; or, through torque and angle detection, if the measured data of the valve 60 under test fluctuates abnormally (exceeding allowable values), it is deemed to have failed, and the drive component 11 stops operating.

[0075] In an alternative embodiment, such as Figure 2 and Figure 3 As shown, the test system also includes a temperature sensor 90; the temperature sensor 90 is used to detect the temperature value of the containment chamber 20. Preferably, the test system also includes a humidity sensor for detecting the humidity value inside the containment chamber. The air parameters include temperature and humidity.

[0076] In an alternative embodiment, such as Figure 3 As shown, the test system also includes: a self-closing test component 70;

[0077] The self-closing test assembly 70 is used to drive the opening and closing of the self-closing device of the valve under test 60;

[0078] The control component 30 and the self-closing test component 70 are electrically connected to control the operation of the self-closing test component 70 according to the test requirements. Specifically, the control component 30 and the self-closing test component 70 are electrically connected to control the self-closing test component 70 to operate according to the fifth preset law according to the test requirements.

[0079] In the above technical solution, the self-closing test component 70 drives the opening and closing of the self-closing device of the valve under test 60. After the self-closing device of the valve under test 60 reaches a preset number of times, the valve under test 60 is closed. Then, the gas source 50 introduces gas into the valve under test 60, and then the leakage detection component 40 detects the leakage state of the containment chamber 20 to determine the leakage status of the valve under test 60. In a specific technical solution, the leakage detection device 45 can be a mass spectrometer. The gas introduced into the valve under test 60 by the gas source 50 is helium. The mass spectrometer is used to detect whether helium is present in the containment chamber 20 to determine whether a leak has occurred in the containment chamber 20. In another specific technical solution, when testing the valve 60 under test, the valve 60 under test is normally open. After the self-closing device of the valve 60 under test reaches a preset number of opening and closing times using the self-closing test assembly 70, the first solenoid valve 41 is opened, and the air source 50 fills the valve 60 under test with gas. Then the first solenoid valve 41 is closed, so that the air intake passage forms a closed passage. The first pressure sensor 43 detects the air pressure on the closed air passage. If the air pressure is gradually decreasing, the valve 60 under test is leaking.

[0080] Optimize the above technical solutions, such as Figure 3 As shown, the self-closing test assembly 70 may include an actuator 71 and a power component 72. The first end of the actuator 71 is connected to the self-closing device, and the power component 72 drives the actuator 71 to reciprocate linearly to realize the opening and closing of the self-closing device of the valve under test 60.

[0081] In the above technical solution, the control component 30 and the power component 72 are electrically connected, and the power component 72 can be controlled to operate according to the fifth preset law according to the test requirements. The fifth preset law is to make the self-closing device of the valve under test 60 open and close cyclically until the preset number of opening and closing is reached.

[0082] Further optimize the above technical solutions, such as Figure 3 As shown, the power unit 72 may include: an air pump 721, an accumulator 722, an air source processor 723, a solenoid valve 724, and a cylinder 725 connected in sequence;

[0083] Among them, the air pump 721 provides driving gas, the accumulator 722 stabilizes the air pressure, the air source processor 723 filters the driving gas, the control component 30 is electrically connected to the solenoid valve 724 to control the solenoid valve 724 to operate according to the fifth preset law according to the test requirements, and the cylinder 725 has a second end of the actuator 71 that slides along its axis to drive the actuator 71 to reciprocate linear motion.

[0084] In the above technical solution, by utilizing the air pump 721, accumulator 722, air source processor 723, solenoid valve 724, and cylinder 725, a first-direction thrust and a second-direction thrust can be quickly generated on the actuator 71 to realize the opening and closing of the self-closing device. The first-direction thrust and the second-direction thrust are in opposite directions; the generated first-direction thrust causes the self-closing device of the valve under test 60 to close, and the generated second-direction thrust causes the self-closing device of the valve under test 60 to open.

[0085] In an optional embodiment, the control component 30 can control the gas source 50 to operate according to a third preset rule based on experimental requirements, wherein the third preset rule includes turning the gas source 50 on or off at preset time points. Figure 2 and Figure 3 As shown, the containment chamber has a containment section 21 for holding the valve 60 to be tested. The control component 30 includes a first control component and a second control component. The first control component controls the air handling component 80 to maintain the temperature inside the containment chamber 20 at a preset value. The second control component controls the operation of the opening and closing test component 10, the air source 50, the leak detection component 40, and the self-closing test component 70. The first and second control components can work together through a linkage mechanism to achieve the control function. Furthermore, the first control component can be a carrier of PID temperature control (i.e., proportional-integral-derivative temperature control), which precisely and stably regulates the temperature inside the containment chamber 20 to achieve any value within the range of -50℃ to 150℃.

[0086] See Figure 9 A test control method for a bottle valve, the method being based on the aforementioned test system; the method includes:

[0087] M1: Obtain test requirements;

[0088] M2: Control the air handling unit 80, the start-up and shut-down test unit 10, the air source 50, and the leak detection unit 40 to operate according to the preset rules.

[0089] In the above technical solution, the air handling unit 80, the opening and closing test unit 10, the air source 50, and the leak detection unit 40 are controlled according to the test requirements and operate according to preset rules. It should be noted that the air handling unit 80, the opening and closing test unit 10, the air source 50, and the leak detection unit 40 can operate according to their respective preset rules, or they can operate according to the same preset rule. Any of the above methods can be selected according to the test requirements.

[0090] In one optional technical solution, controlling the air handling unit 80 to operate according to a preset pattern includes:

[0091] Obtain the air parameters of the containment chamber 20; the air parameters include: temperature;

[0092] The air handling unit 80 operates according to the first preset law based on the air parameters;

[0093] like Figure 4 As shown, the first preset operating rule includes: a first correspondence between time and temperature, a second correspondence between time and temperature, a third correspondence between time and temperature, and a fourth correspondence between time and temperature, which are cyclically repeated according to a preset number of cycles; wherein, the first correspondence is to keep the temperature inside the containment chamber 20 at a first preset temperature for a preset time; the second correspondence is to keep the temperature inside the containment chamber 20 at a second preset temperature for a preset time; the third correspondence is to keep the temperature inside the containment chamber 20 at a third preset temperature for a preset time; and the fourth correspondence is to keep the temperature inside the containment chamber 20 at a fourth preset temperature for a preset time. The preset time duration can be set as needed and is not limited, for example, it can be one hour and fifteen minutes, two hours, or three hours, etc. The first preset temperature can be 20 degrees, 25 degrees, or 30 degrees, the second preset temperature can be 50 degrees, 55 degrees, or 60 degrees, the third preset temperature can be 20 degrees, 25 degrees, or 30 degrees, etc., and the fourth preset temperature can be -40 degrees, -45 degrees, or -50 degrees, etc. In a specific embodiment, the first preset temperature is 20 degrees (i.e., simulating spring), the second preset temperature is 60 degrees (i.e., simulating summer), the third preset temperature is 20 degrees (i.e., simulating autumn), and the fourth preset temperature is -40 degrees (i.e., simulating winter), and the preset time is one hour. In addition, the air handling unit 80 allows the temperature rise and fall rate inside the containment chamber 20 to reach 5°C / min.

[0094] In the above technical solutions, such as Figure 4 As shown, to simulate a more realistic actual operating environment for the bottle valve and obtain more accurate test data, four sets of time-temperature correspondences are established: the first correspondence, the second correspondence, the third correspondence, and the fourth correspondence. The first correspondence corresponds to the simulated season of spring, the second correspondence to the simulated season of summer, the third correspondence to the simulated season of autumn, and the fourth correspondence to the simulated season of winter. Preferably, the transition time for each season is 10 minutes, 20 minutes, or 30 minutes, etc., and the air circulation device 83 operates for a preset time, followed by a rest period of 10 minutes, 20 minutes, or 30 minutes, etc.

[0095] It should be noted that all temperatures mentioned in this article are in degrees Celsius (°C).

[0096] In one of the alternative technical solutions, such as Figure 4 As shown, the control of the opening and closing test component 10 to operate according to the second preset law includes:

[0097] S1: The opening and closing test component 10 drives the valve under test 60 to open and close a preset number of times; wherein, the preset number of times can be 20K times.

[0098] S2: Leakage detection component 40 detects the leakage status of valve 60 under test;

[0099] In this process, S1 and S2 cycle sequentially until the leakage detection component 40 detects a leakage in the valve under test 60, at which point the opening and closing test component 10 stops driving the valve under test 60, thus completing the durability test. This technical solution utilizes the coordinated operation of the opening and closing test component 10 and the leakage detection component 40 to perform a durability test on the valve under test 60.

[0100] In a specific technical solution, such as Figure 5 As shown, the process of the leakage detection component 40 detecting the leakage status of the valve under test 60 is as follows: when the valve under test 60 is closed, the external leakage (the amount of leakage of the operating rod at the outlet end when the pressure drops) and the internal leakage (the amount of leakage of the valve body) of the valve under test 60 can be detected by using the leakage detection device 45 or the pressure sensor.

[0101] In one specific embodiment, the durability test of the bottle valve: such as Figure 8 As shown, parameters (rotation speed, opening and closing torque, number of life tests, alternating temperature range, temperature change curve, etc.) are set in the experimental apparatus through the human-machine interface 100. The valve under test 60 is installed in the housing chamber 20. The opening and closing test assembly 10 and the air treatment assembly 80 are started. The valve under test 60 is opened or closed by the forward and reverse rotation of the drive component 11 (which can be a servo motor) to conduct a durability test. If the valve under test 60 leaks, the durability test of the valve under test 60 will automatically stop.

[0102] In one specific embodiment, the self-closing test of the valve under test 60 is as follows: Figure 8 As shown, parameters (number of life test cycles, alternating temperature range, temperature change curve, etc.) are set in the experimental apparatus through the human-machine interface. The valve under test 60 is installed in the housing chamber 20. The opening and closing test assembly 10 and the air treatment assembly 80 are started. The actuator 71 reciprocates to test the self-closing device of the valve under test 60. When the number of test cycles is reached, the self-closing test of the valve under test 60 automatically stops.

[0103] In the above test, the operation stopped when a fault occurred or the valve under test 60 was abnormal, and the buzzer and indicator light alarmed.

[0104] In one of the alternative technical solutions, such as Figure 8As shown, the operating time and transition time for different temperature states (room temperature - high temperature - low temperature) within the containment chamber 20 can be set via the human-machine interface 100. The operating parameters of the air handling unit 80, the opening and closing test unit 10, the air source 50, the leak detection unit 40, and the self-closing test unit 70 can be set via the human-machine interface 100. Different parameter settings can be used to achieve the first simulated durability test and the second simulated durability test.

[0105] In the above context, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0106] In the description of the embodiments of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. "And / or" in this article is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone.

[0107] It should be noted that, for ease of description, only the parts relevant to the application are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0108] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed, and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. The scope of this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described application concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A testing system for bottle valves, characterized in that, include: Opening and closing test assembly (10), containment chamber (20), control assembly (30), leak detection assembly (40), air source (50) and air handling assembly (80); The receiving chamber (20) is a sealed cavity and is configured to receive and place the valve to be tested (60). The air handling unit (80) is configured to communicate with the containment chamber (20) to regulate air parameters within the containment chamber (20), wherein the air parameters include: temperature; The opening and closing test assembly (10) is used to drive the valve under test (60) to open and close; The gas source (50) is used to connect to the air inlet of the valve to be tested (60); The leakage detection component (40) is used to detect the leakage status of the valve under test (60); The control component (30) is electrically connected to the air handling component (80), the opening and closing test component (10), the air source (50), and the leak detection component (40) to control the operation of the air handling component (80), the opening and closing test component (10), the air source (50), and the leak detection component (40) according to test requirements.

2. The testing system as described in claim 1, characterized in that, The air handling unit (80) includes: a refrigeration device (81), a heating device (82), and an air circulation device (83); The control component (30) controls the opening and closing of the refrigeration equipment (81) and / or the heating equipment (82) according to the test requirements, and the control component (30) controls the air circulation equipment (83) to deliver the cold air blown out by the refrigeration equipment (81) and / or the hot air blown out by the heating equipment (82) to the containment chamber (20) according to the test requirements.

3. The testing system as described in claim 1, characterized in that, The leak detection assembly (40) includes a leak detection device (45) disposed within the housing (20).

4. The testing system as described in claim 1, characterized in that, The leakage detection component (40) includes: a first solenoid valve (41), a second solenoid valve (42), a first pressure sensor (43), and a second pressure sensor (44). The control component (30) controls the opening and closing of the first solenoid valve (41) so that the gas from the gas source (50) can enter the valve under test (60). The first pressure sensor (43) is set on the air intake passage between the gas source (50) and the air intake end of the valve under test (60) to detect the air pressure in the air intake passage. The self-closing passage of the valve under test (60) is provided with the second solenoid valve (42) and the second pressure sensor (44). The second pressure sensor (44) detects the air pressure in the self-closing passage, and the control component (30) controls the opening and closing of the second solenoid valve (42). Alternatively, the leak detection assembly (40) may include: a first solenoid valve (41) and a first pressure sensor (43). The control component (30) controls the opening and closing of the first solenoid valve (41) so that the gas from the gas source (50) can enter the valve under test (60). The first pressure sensor (43) is set on the air intake passage between the gas source (50) and the air intake end of the valve under test (60) to detect the air pressure in the air intake passage.

5. The testing system as described in claim 1, characterized in that, The opening and closing test assembly (10) includes: a drive component (11), a drive head (12), a torque detection component (13), and a rotation angle detection component (14). The drive head (12) includes a locking position that cooperates with the operating handle of the valve to be tested (60). The drive head (12) is located at the power output end of the drive member (11) to drive the valve of the valve to be tested (60) to open and close by rotating. The torque detection element (13) is located between the drive element (11) and the drive head (12) to detect the torque value of the drive head (12); The rotation angle detection element (14) is located at the power output end of the drive element (11) to detect the rotation angle of the drive head (12).

6. The testing system as described in claim 1, characterized in that, The test system also includes a temperature sensor (90); the temperature sensor (90) is used to detect the temperature value of the containment chamber (20).

7. The testing system as described in claim 1, characterized in that, The test system also includes: a self-closing test component (70); The self-closing test assembly (70) is used to drive the opening and closing of the self-closing device of the valve under test (60); The control component (30) and the self-closing test component (70) are electrically connected to control the operation of the self-closing test component (70) according to the test requirements.

8. The testing system as described in claim 7, characterized in that, The self-closing test assembly (70) includes an actuator (71) and a power component (72). The first end of the actuator (71) is connected to the self-closing device. The power component (72) drives the actuator (71) to reciprocate linearly to realize the opening and closing of the self-closing device of the valve under test (60).

9. The testing system as described in claim 8, characterized in that, The power component (72) includes: an air pump (721), an accumulator (722), an air source processor (723), a solenoid valve (724), and a cylinder (725) connected in sequence. The air pump (721) provides driving gas, the accumulator (722) stabilizes the gas pressure, the air source processor (723) filters the driving gas, the control component (30) and the solenoid valve (724) are electrically connected to control the operation of the solenoid valve (724) according to the test requirements, and the cylinder (725) has a second end of the actuator (71) that slides along its axial direction to drive the actuator (71) to reciprocate linearly.

10. The test system of claim 1, further comprising a humidity sensor for detecting the humidity value inside the containment chamber (20).

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