Safety interlocking device of quick-opening container and detection device and method of container control cabinet

Abstract

The invention relates to the technical field of inspection and detection, and discloses a safety interlocking device of a quick-opening container and a detection device and method of a container control cabinet. The detection device is composed of a power supply circuit, a main controller, a liquid crystal screen, a pressure main adjusting module, a pressure auxiliary adjusting module, a pressure transmitter signal simulation module, a temperature transmitter signal simulation module, a zero-pressure controller signal simulation module, a storage module, a gas exhaust, a pressure sensor and the like. The pressure container or / and the safety interlocking device can be detected, so that the safety and reliability of the quick-opening safety interlocking device can be verified under the shutdown state of the quick-opening container, meanwhile, the control logic of the container control cabinet is verified, the blank of related detection is filled, and the detection efficiency is improved. And the safety and the reliability of the pressure container with the quick-opening door are improved.

Description

Technical Field

[0001] The present invention relates to the fields of inspection and testing technologies, and specifically, to a safety interlock device for a quick-opening container and a detection device and method for a container control cabinet. Background Art

[0002] As Figure 1 shown, a quick-opening pressure vessel mainly includes a pressure transmitter 9, a zero-pressure controller 10, a container control cabinet 11, a zero-pressure controller signal line 12, a pressure transmitter signal line 13, a safety interlock device 14, a pressure vessel 20, and a temperature transmitter 60; among them, the pressure transmitter 9 is one of the pressure detection components of the quick-opening pressure vessel and is used to output a real-time pressure signal to the container control cabinet 11; the temperature transmitter 60 is one of the pressure detection components of the quick-opening pressure vessel and is used to output a real-time temperature signal to the container control cabinet 11; the zero-pressure controller 10 is one of the pressure detection components of the quick-opening pressure vessel and is used to output a signal indicating whether there is pressure in the pressure vessel 20 to the container control cabinet 11; the container control cabinet 11 is the control unit of the quick-opening pressure vessel and is used to receive the pressure signal of the pressure vessel 20 and control the safety interlock device 14; the zero-pressure controller signal line 12 is used to transmit the zero-pressure signal; the pressure transmitter signal line 13 is used to transmit the real-time pressure; and the safety interlock device 14 is used to lock / unlock the container door of the pressure vessel 20.

[0003] In terms of the safety inspection of quick-opening pressure vessels, traditional inspection methods often need to be carried out under the operating state of the pressure vessel 20, which not only poses safety hazards but also cannot comprehensively and accurately detect the functions of the safety interlock device 14 of the quick-opening door and the container control cabinet 11. In addition, the existing technologies lack an effective detection means to verify the safety interlock device 14 and the control logic under the shutdown state of the pressure vessel 20.

[0004] In the existing safety inspection of quick-opening pressure vessels, the following problems mainly exist: Safety hazards: Traditional inspection methods need to be carried out under the operating state of the pressure vessel 20, increasing the operation risk and the possibility of personal injury.

[0005] Incomplete inspection: It is impossible to comprehensively and accurately detect the functions of the safety interlock device 14 of the quick-opening door and the container control cabinet 11 under the shutdown state.

[0006] Lack of effective detection means: Under the shutdown state of the pressure vessel 20, there is a lack of an effective means to simulate the container pressure state of the pressure vessel 20 and detect the safety interlock device 14 and the control logic. Summary of the Invention

[0007] The object of the present invention is to provide a safety interlock device for a quick-opening container, a detection device and method for a container control cabinet, which can check the safety and reliability of the quick-opening container safety interlock device and the control logic of the container control cabinet when the quick-opening container is in a stopped state, fill the blank of relevant detections, and improve the safety and reliability of the quick-opening pressure vessel.

[0008] The present invention is realized through the following technical solutions: A safety interlock device for a quick-opening container and a detection device for a container control cabinet, including a power supply circuit, a main controller, a liquid crystal display screen, a main pressure adjustment module, an auxiliary pressure adjustment module, a pressure transmitter signal simulation module, a zero-pressure controller signal simulation module, a temperature transmitter signal simulation module, a storage module and an air exhaust. The power supply circuit is respectively connected to the liquid crystal display screen, the main controller, the liquid crystal display screen, the main pressure adjustment module, the auxiliary pressure adjustment module, the pressure transmitter signal simulation module, the zero-pressure controller signal simulation module, the temperature transmitter signal simulation module, and the storage module. The main controller is respectively connected to the liquid crystal display screen, the main pressure adjustment module, the auxiliary pressure adjustment module, the pressure transmitter signal simulation module, the temperature transmitter signal simulation module, the zero-pressure controller signal simulation module, and the storage module. The air exhaust is respectively connected to the main pressure adjustment module and the auxiliary pressure adjustment module; A pressure sensor is also arranged on the air exhaust through an air path, and the pressure sensor is connected to the main controller.

[0009] The air exhaust is used to connect each pneumatic module (DC air pump, pressure sensor, micro air pump, etc.) inside the detection device.

[0010] The liquid crystal display screen is connected to the main controller and serves as a user interface for setting test parameters, starting tests, and viewing results.

[0011] The power supply circuit provides a stable and reliable power supply for the detection device to ensure the normal operation of each component.

[0012] The main controller controls the working processes of each module, processes data, and coordinates the overall operation.

[0013] The main pressure adjustment module is used to generate and stably transmit air pressure for the detection device to test the safety interlock device.

[0014] The auxiliary pressure adjustment module is used to finely adjust the air pressure in the air exhaust to ensure the test accuracy.

[0015] The pressure transmitter signal simulation module is used to simulate the pressure transmitter signal to check the response of the container control cabinet when the pressure changes.

[0016] The temperature transmitter signal simulation module is used to simulate the temperature transmitter signal to check the response of the container control cabinet when the temperature changes.

[0017] The zero-pressure controller signal simulation module is used to simulate the zero-pressure controller signal and verify the response of the container control cabinet in the zero-pressure state.

[0018] The storage module stores test parameters, results and relevant data for subsequent analysis and reference.

[0019] The temperature transmitter is one of the pressure detection components of the quick-opening pressure vessel and is used to output the real-time temperature signal to the container control cabinet; the pressure transmitter is one of the pressure detection components of the quick-opening pressure vessel and is used to output the real-time pressure signal to the container control cabinet; the zero-pressure controller is one of the pressure detection components of the quick-opening pressure vessel and is used to output a signal indicating whether there is pressure in the pressure vessel to the container control cabinet; the container control cabinet is the control unit of the quick-opening pressure vessel and is used to receive the pressure signals of the pressure vessel and control the safety interlock device; the zero-pressure controller signal line is used to transmit the zero-pressure signal; the pressure transmitter signal line is used to transmit the real-time pressure; the safety interlock device is used to lock / unlock the container door of the pressure vessel.

[0020] The pressure sensor is used to detect the real-time pressure change of the cavity (air exhaust).

[0021] The zero-pressure controller and the pressure transmitter are directly connected to the pressure vessel; the zero-pressure controller converts the pressure in the pressure vessel into an electrical signal and transmits it to the container control cabinet, and the container control cabinet displays the state of whether there is pressure in the pressure vessel. For example, when the pressure in the pressure vessel exceeds the critical pressure, a pressure signal is output, and when it is lower than the critical pressure, a zero-pressure signal is output.

[0022] The temperature transmitter converts the temperature in the pressure vessel into an electrical signal and transmits it to the container control cabinet, and the container control cabinet displays the temperature value in the pressure vessel.

[0023] The pressure transmitter converts the pressure in the pressure vessel into an electrical signal and transmits it to the container control cabinet, and the container control cabinet displays the pressure value in the pressure vessel.

[0024] The container control cabinet controls the locking or unlocking of the safety interlock device according to the state of whether there is pressure and temperature in the pressure vessel and the pressure and temperature values. For example, when the pressure in the pressure vessel is greater than the critical pressure and the temperature is greater than the critical temperature, the container control cabinet controls the safety interlock device to lock and prohibits opening the container door. When the pressure and temperature in the pressure vessel are less than the critical pressure, the container control cabinet controls the safety interlock device to unlock and allows opening the container door.

[0025] To better implement the safety interlock device for a quick-opening container and the detection device for the container control cabinet described in the present invention, the following setting method is particularly adopted: The main pressure adjustment module includes a DC air pump. The DC air pump is connected to the air exhaust through an air path provided with a third solenoid valve. The power supply circuit and the main controller are both connected to the DC air pump and the third solenoid valve. The auxiliary pressure adjustment module includes a micro-pressure air pump. The micro-pressure air pump is connected to the air exhaust through an air path. The power supply circuit and the main controller are both connected to the micro-pressure air pump. Among them, the DC air pump is used for rapid pressurization; the micro-pressure air pump is used for slow pressure adjustment; the third solenoid valve is used to open or close the corresponding air path.

[0026] To better implement the safety interlock device for a quick-opening container and the detection device for the container control cabinet described in the present invention, the following setting method is particularly adopted: The air exhaust is also connected to a pressure relief port through an air path provided with a first solenoid valve. The air exhaust is also provided with a pressure output port through an air path. The power supply circuit and the main controller are both connected to the first solenoid valve. Among them, the pressure relief port is used for slowly discharging air (relieving pressure) from the cavity (air exhaust); the first solenoid valve is used to open or close the corresponding air path; the pressure output port is used for externally outputting pressure; the air path is used for connecting various pressure components.

[0027] To better implement the safety interlock device for a quick-opening container and the detection device for the container control cabinet described in the present invention, the following setting method is particularly adopted: An air path provided with a second solenoid valve is also connected to the air exhaust. The power supply circuit and the main controller are both connected to the second solenoid valve. Among them, the second solenoid valve is used to open or close the corresponding air path.

[0028] To better implement the safety interlock device for a quick-opening container and the detection device for the container control cabinet described in the present invention, the following setting method is particularly adopted: The pressure transmitter signal simulation module includes a pressure transmitter signal simulation unit respectively connected to the power supply circuit and the main controller. A pressure transmitter signal simulation unit output port is provided on the pressure transmitter signal simulation unit. Among them, the pressure transmitter signal simulation unit is used to simulate the pressure transmitter signal, and the pressure transmitter signal simulation unit output port is used for externally outputting the simulated pressure transmitter signal.

[0029] To better implement the safety interlock device for a quick-opening container and the detection device for the container control cabinet described in the present invention, the following setting method is particularly adopted: The temperature transmitter signal simulation module includes a temperature transmitter signal simulation unit respectively connected to the power supply circuit and the main controller. A temperature transmitter signal simulation unit output port is provided on the temperature transmitter signal simulation unit. Among them, the temperature transmitter signal simulation unit is used to simulate the temperature transmitter signal, and the temperature transmitter signal simulation unit output port is used for externally outputting the simulated temperature transmitter signal.

[0030] The pressure transmitter signal simulation unit and the temperature transmitter signal simulation unit adopt the same circuit structure, both including a first circuit, a digital signal isolation circuit and a linear voltage stabilizing circuit. The first circuit includes chip U2 and transistor Q1. Pin 1 and pin 2 of chip U2 are connected to OUT_GND. Pin 3 of chip U2 is connected to the power supply circuit (SYS_VCC_Tps power supply) and connected to OUT_GND through capacitor C14. Pins 4, 5, 6 and 8 of chip U2 are all connected to the main controller through the digital signal isolation circuit carried by the ISO7762DBQ device; Pin 7 of chip U2 is connected to the power supply circuit (SYS_VCC_Tps power supply) through resistor R38. Pin 9 of chip U2 is connected to the linear voltage stabilizing circuit through diode D2. Pin 10 of chip U2 is connected to OUT_GND through resistor R34. Pin 12 of chip U2 is connected to OUT_GND through capacitor C13. The power supply circuit (SYS_VCC_Tps power supply) is also connected to pin 15 of chip U2, and pin 15 of chip U2 is also connected to OUT_GND through capacitor C3. Pin 14 of chip U2 is connected to OUT_GND through capacitor C4. Pin 13 of chip U2 is connected to OUT_GND through capacitors C7 and C8 in parallel; Pin 16 of chip U2 is connected to the second end (base) of transistor Q1. The first end (emitter) of transistor Q1 is connected to OUT_GND through resistor R30. The third end (collector) of transistor Q1 is connected to the linear voltage stabilizing circuit through diode D1. The positive pole of diode D1 is connected to the third end of transistor Q1. The negative pole of diode D1 is also connected with two capacitors C1 and C2 in parallel, and the second ends of capacitors C1 and C2 form the LOOP- node; A capacitor C6 is connected to the second end of transistor Q1 after modification, and the second end of capacitor C6 forms the LOOP- node; Chip U2 uses DAC161S997. DAC161S997 is a 16-bit ΣΔ digital-to-analog converter (DAC) with ultra-low power consumption, which can send an analog output current in an industry-standard 4-20mA current loop; It has a four-wire serial peripheral interface (SPI) for data transmission and DAC function configuration; It adopts an internal ultra-low power consumption reference voltage and an internal oscillator; The loop driver of DAC161S997 can be connected to the HART modulator to inject digital data modulated by frequency shift keying (FSK) into the 4-20mA current loop; It adopts a 16-pin 4mm × 4mm ultra-thin quad flat no-lead (WQFN) package and is rated to operate in the extended industrial temperature range of -40°C to +105°C; DAC161S997 interacts with the "expansion interface 1" of the main control board through the SPI interface; The externally output 4-20mA current signal is output through the P1 interface.

[0031] Pin 5 of chip U2 is for SPI data input, pin 6 is for chip select function, and pin 8 is for SPI data output. This circuit implements a 4 - 20mA current loop transmitter; the LOOP_PWR node is connected to the main power supply of the power module section; SYS_VCC_TPs is a 3.3 - volt voltage.

[0032] The digital signal isolation circuit is built using the ISO7762DBQ device (chip U1). The ISO7762DBQ device is a high - performance six - channel digital isolator that provides isolation ratings of 5000VRMS (DW package) and 3000VRMS (DBQ package) compliant with UL 1577. This series of devices has also passed VDE, CSA, TUV, and CQC certifications.

[0033] Pin 3 of chip U1 is the input for channel A, pin 4 is the input for channel B, pin 5 is the input for channel C, pin 6 is the output for channel D, pin 14 is the output for channel A, pin 13 is the output for channel B, pin 12 is the output for channel C, and pin 11 is the input for channel D; the digital signal isolation circuit enables the main controller to control the signal analog units of the pressure transmitter and the temperature transmitter through isolation.

[0034] The linear voltage - regulating circuit includes chip U3, P1 interface, resistor R33, resistor R32, resistor R35, resistor R31, resistor R37, resistor R39, capacitor C5, capacitor C10, capacitor C15, capacitor C11, capacitor C12, diode D3, and diode D4. Pin 1 of chip U3 is connected to the power supply circuit (SYS_VCC_Tps power supply), and pin 1 of chip U3 is also connected to OUT_GND through capacitor C12, connected to OUT_GND through capacitor C11, and connected to OUT_GND through the series - connected resistors R33 and R37. The common connection point of resistors R33 and R37 is connected to pin 2 of chip U3. Pins 4 and 9 of chip U3 are commonly connected and connected to OUT_GND. Pin 5 of chip U3 is connected to the cathode of diode D1 through the series - connected resistors R35 and R31. Pin 6 of chip U3 is connected to OUT_GND through capacitor C15. The common connection point of resistors R35 and R31 is connected to pin 8 of chip U3, the common connection point of resistors R35 and R31 is connected to the first terminal of capacitor C10, the second terminal of capacitor C10 is connected to OUT_GND, the first terminal of capacitor C10 is connected to the first pin of P1 interface (this pin is connected to PLC_VCC of the power supply circuit) through diode D3. At the anode of diode D3, it is connected to the LOOP - node through diode D4, and capacitor C5 is connected in parallel at diode D4. The second pin of P1 interface is connected to OUT_GND through resistor R39, and the third pin of P1 interface is connected to the LOOP - node.

[0035] The main controller uses ST (STMicroelectronics) _STM32F429ZGT6TR; STM32F429ZGT6 controls the rotation speed of the air pump motor (DC air pump) by outputting a hardware PWM wave through the timer module, thereby controlling the boost rate; STM32F429ZGT6 interacts with the data information of the resistive touch screen (LCD screen) through the UART module; STM32F429ZGT6 can obtain the pressure data of the pressure sensor through the IIC module; STM32F429ZGT6 controls the stepping motor (micro-pressure air pump) and obtains the status of the stepping motor and the driver chip through IO, timer, and pulse capture; STM32F429ZGT6 controls the output level signal of the driver and the status of the solenoid valve through the IO output module.

[0036] To further better implement the safety interlock device for a quick-opening container and the detection device for the container control cabinet described in the present invention, the following setting method is particularly adopted: The zero-pressure controller signal simulation module includes a zero-pressure signal simulation unit respectively connected to the power supply circuit and the main controller, and a zero-pressure signal simulation unit output port is provided on the zero-pressure signal simulation unit; wherein, the zero-pressure signal simulation unit is used to simulate the zero-pressure signal, and the zero-pressure signal simulation unit output port is used to output the simulated zero-pressure signal externally.

[0037] A safety interlock device for a quick-opening container and a detection method for the container control cabinet, using the described safety interlock device for a quick-opening container and the detection device for the container control cabinet to detect the safety interlock device, including the following steps: 1) Remove the pressure transmitter and the zero-pressure controller from the pressure vessel, use a tee to connect the pressure transmitter and the zero-pressure controller, and connect the remaining port of the tee to the pressure output port through a gas path; 2) Connect the temperature transmitter signal simulation module (the temperature transmitter signal simulation unit output port provided on the temperature transmitter signal simulation unit) to the container control cabinet through a new temperature transmitter signal line; 3) Set the corresponding parameters on the LCD screen, and the corresponding parameters include critical pressure, target pressure, critical temperature, target temperature, voltage stabilization time, number of tests, etc.; 4) Switch the test mode on the LCD screen to the quick-opening test function; 5) Click the start button on the LCD screen to start pressurization and heating, and enter the pressurization state and heating state; 6) Open the second solenoid valve to connect the air exhaust to the atmospheric pressure; 7) When the air pressure returns to zero, close the second solenoid valve; 8) Open the third solenoid valve and the DC air pump, and the DC air pump quickly pressurizes the air exhaust; 9) Monitor the real-time pressure value information in the air exhaust through the pressure sensor; 10) Real-time monitor the temperature output value information through a liquid crystal screen (preferably a 10-inch liquid crystal touch screen); 11) When the real-time pressure value and temperature value rise to the critical pressure and critical temperature, observe whether the safety interlock device is locked; 12) Continue to pressurize with a DC air pump until 95% of the target pressure is reached, then close the third solenoid valve and the DC air pump. At the same time, the temperature transmitter signal simulation module (through the output port of the temperature transmitter signal simulation unit) outputs an analog temperature increase signal; 13) Use a micro-pressure air pump to slowly adjust the pressure until it reaches the target pressure ±0.015 kPa; 14) When the detected real-time pressure value reaches the target and the analog temperature increase reaches the set analog range, close all solenoid valves, enter the pressure stabilization state, and start calculating the pressure stabilization duration; 15) After the pressure stabilization time is reached, open the first solenoid valve and use the pressure relief port to slowly reduce the pressure; 16) When the real-time pressure value and temperature value drop to the critical pressure and critical temperature, observe whether the safety interlock device (14) is unlocked; 17) Continue to reduce the pressure and temperature until the pressure in the air exhaust is completely released; 18) Determine whether the set number of tests is completed. If not, repeat steps 3) to 17). If completed, end the test.

[0038] A detection method for the safety interlock device and container control cabinet of a quick-opening container, using the detection device for the safety interlock device and container control cabinet of a quick-opening container described above to detect the container control cabinet, including the following steps: S1. Remove the ends of the zero-pressure controller signal wire, temperature transmitter signal wire, and pressure transmitter signal wire that are connected to the zero-pressure controller, temperature transmitter, and pressure transmitter, and then connect the zero-pressure controller signal wire, temperature transmitter signal wire, and pressure transmitter signal wire to the output ports of the zero-pressure signal simulation unit, temperature transmitter signal simulation unit, and pressure transmitter signal simulation unit respectively; S2. Set the analog range, zero-pressure control default state (there are two states for the zero-pressure control default state: "normally open" and "normally closed". For example, if the default is set to normally open, when the output analog pressure and temperature are less than the critical pressure and critical temperature, the zero-pressure control outputs a disconnection signal; when the output analog pressure and temperature are greater than the critical pressure and Curie temperature, a closing signal is output), critical pressure, critical temperature, number of tests, etc. through the liquid crystal screen; S3. Switch the test mode on the liquid crystal screen to the control cabinet test function; S4. Click the start button on the liquid crystal screen to start simulating pressurization and temperature increase, and output analog pressure signals, analog temperature signals, and analog zero-pressure signals externally; S5. When the simulated pressure is greater than the critical pressure and the simulated temperature is greater than the critical temperature, the externally output simulated zero-pressure signal is a pressurized signal; when the simulated pressure is less than the critical pressure and the simulated temperature is less than the critical temperature, the externally output simulated zero-pressure signal is a non-pressurized signal, and observe whether the safety interlock device is locked. S6. Continue to simulate pressurization and temperature increase to the set simulated range. S7. Determine whether the simulated output pressure and temperature reach the simulated range. If so, enter the pressure stabilization state and start calculating the pressure stabilization duration. S8. After the pressure stabilization time is reached, start to simulate pressure reduction and temperature decrease. S9. When the simulated pressure and temperature drop to the critical pressure and critical temperature, observe whether the safety interlock device is unlocked. S10. Continue to reduce pressure and temperature until the simulated pressure and simulated temperature outputs are 0. S11. Determine whether the set number of test times is completed. If not, repeat steps S4 - S11. If completed, end the test.

[0039] Furthermore, to better implement the detection method of the safety interlock device and the container control cabinet of a quick-opening container described in the present invention, the following setting method is particularly adopted: In step S1, the signal lines of the original zero-pressure controller, temperature transmitter, and pressure transmitter of the quick-opening container are removed, and then one end of the new zero-pressure controller signal line is connected to the interface on the container control cabinet side, and the other end is connected to the output port of the zero-pressure signal simulation unit; one end of the new pressure transmitter signal line is connected to the interface on the container control cabinet side, and the other end is connected to the output port of the pressure transmitter signal simulation unit; one end of the new temperature transmitter signal line is connected to the interface on the container control cabinet side, and the other end is connected to the output port of the temperature transmitter signal simulation unit.

[0040] Compared with the prior art, the present invention has the following advantages and beneficial effects: The present invention realizes the detection of the interlock device with multi-parameter control: By simulating the temperature and pressure states of the pressure vessel, the functions of the quick-opening safety interlock device with multi-parameter control and the container control cabinet can be comprehensively and accurately detected.

[0041] The present invention improves safety: Detection is carried out under the shutdown state of the pressure vessel, avoiding the safety hazards brought by traditional detection methods.

[0042] The detection of the present invention is more comprehensive and accurate: By simulating the pressure state of the pressure vessel, the functions of the quick-opening safety interlock device and the control cabinet can be comprehensively and accurately detected.

[0043] The present invention fills the detection gap: It provides an effective detection means, filling the gap in the lack of effective detection means for quick-opening pressure vessels under the shutdown state.

[0044] The present invention has a wide range of applications: the provided detection device is applicable to multiple fields such as production manufacturing, use, inspection and testing, etc., and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a schematic structural diagram of a quick-opening container.

[0046] Figure 2 It is a schematic connection structure diagram during the detection of the safety interlock device.

[0047] Figure 3 It is a schematic connection structure diagram during the detection of the control cabinet.

[0048] Figure 4 It is a schematic structural diagram of the detection device described in the present invention.

[0049] Figure 5 It is the first circuit schematic diagram described in the present invention.

[0050] Figure 6 It is the schematic diagram of the digital signal isolation circuit described in the present invention.

[0051] Figure 7 It is the schematic diagram of the linear voltage stabilization circuit described in the present invention.

[0052] Among them, 1 - air exhaust, 3 - DC air pump, 4 - pressure reduction port, 5 - micro air pump, 6 - pressure sensor, 7 - pressure output port, 8 - air circuit, 9 - pressure transmitter, 10 - zero pressure controller, 11 - container control cabinet, 12 - zero pressure controller signal line, 13 - pressure transmitter signal line, 14 - safety interlock device, 15 - pressure transmitter signal simulation unit, 16 - zero pressure signal simulation unit, 17 - pressure transmitter signal simulation unit output port, 18 - zero pressure signal simulation unit output port, 20 - pressure vessel, 21 - first solenoid valve, 22 - second solenoid valve, 23 - third solenoid valve, 50 - temperature transmitter signal simulation unit, 51 - temperature transmitter signal simulation unit output port, 52 - new temperature transmitter signal line, 60 - temperature transmitter, 61 - temperature transmitter signal line. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0053] The present invention will be further described in detail below in conjunction with embodiments, but the embodiments of the present invention are not limited thereto.

[0054] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0055] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0056] Embodiment 1: The present invention designs a safety interlock device for a quick-opening container and a detection device for a container control cabinet. In the shutdown state of the quick-opening container, it can perform safety and reliability verification on the quick-opening safety interlock device and at the same time verify the control logic of the container control cabinet, filling the gap in related detections and improving the safety and reliability of the quick-opening pressure vessel. Figures 1 to 4 As shown in the figure, it includes a power supply circuit, a main controller, a liquid crystal display screen, a main pressure adjustment module, an auxiliary pressure adjustment module, a pressure transmitter signal simulation module, a zero-pressure controller signal simulation module, a temperature transmitter signal simulation module, a storage module, and an air exhaust 1. The power supply circuit is respectively connected to the liquid crystal display screen, the main controller, the liquid crystal display screen, the main pressure adjustment module, the auxiliary pressure adjustment module, the pressure transmitter signal simulation module, the temperature transmitter signal simulation module, the zero-pressure controller signal simulation module, and the storage module. The main controller is respectively connected to the liquid crystal display screen, the main pressure adjustment module, the auxiliary pressure adjustment module, the pressure transmitter signal simulation module, the temperature transmitter signal simulation module, the zero-pressure controller signal simulation module, and the storage module. The air exhaust 1 is respectively connected to the main pressure adjustment module and the auxiliary pressure adjustment module; a pressure sensor 6 is further provided on the air exhaust 1 through an air path 8, and the pressure sensor 6 is connected to the main controller.

[0057] The air exhaust 1 is used to connect each pneumatic module (such as a DC air pump 3, a pressure sensor 6, a micro-pressure air pump 5, etc.) inside the detection device.

[0058] The liquid crystal display screen is connected to the main controller and serves as a user interface for setting test parameters, starting tests, and viewing results.

[0059] The power supply circuit provides a stable and reliable power supply for the detection device to ensure the normal operation of each component.

[0060] The main controller controls the working processes of each module, processes data, and coordinates the overall operation.

[0061] The main pressure regulation module is used to generate and stably deliver air pressure so that the detection device can test the safety interlock device 14.

[0062] The auxiliary pressure regulation module is used to finely adjust the air pressure in the air discharge 1 to ensure the test accuracy.

[0063] The pressure transmitter signal simulation module is used to simulate the pressure transmitter signal to verify the response when the pressure in the container control cabinet 11 changes.

[0064] The temperature transmitter signal simulation module is used to simulate the temperature transmitter signal to verify the response when the temperature in the container control cabinet 11 changes.

[0065] The zero-pressure controller signal simulation module is used to simulate the zero-pressure controller signal to verify the response of the container control cabinet 11 in the zero-pressure state.

[0066] The storage module stores test parameters, results, and related data for subsequent analysis and reference.

[0067] The temperature transmitter 60 is one of the pressure detection components of the quick-opening pressure vessel and is used to output the real-time temperature signal to the container control cabinet 11; the pressure transmitter 9 is one of the pressure detection components of the quick-opening pressure vessel and is used to output the real-time pressure signal to the container control cabinet 11; the zero-pressure controller 10 is one of the pressure detection components of the quick-opening pressure vessel and is used to output a signal indicating whether there is pressure in the pressure vessel 20 to the container control cabinet 11; the container control cabinet 11 is the control unit of the quick-opening pressure vessel and is used to receive the pressure signal of the pressure vessel 20 and control the safety interlock device 14; the zero-pressure controller signal line 12 is used to transmit the zero-pressure signal; the pressure transmitter signal line 13 is used to transmit the real-time pressure; the safety interlock device 14 is used to lock / unlock the container door of the pressure vessel 20.

[0068] The pressure sensor 6 is used to detect the real-time pressure change in the cavity (air discharge 1).

[0069] The zero-pressure controller 10 and the pressure transmitter 9 are directly connected to the pressure vessel 20; the zero-pressure controller 10 converts the pressure inside the pressure vessel 20 into an electrical signal and transmits it to the container control cabinet 11, and the container control cabinet 11 displays the pressurized state inside the pressure vessel 20. For example, when the pressure inside the pressure vessel 20 exceeds the critical pressure, a pressurized signal is output, and when it is lower than the critical pressure, a non-pressurized signal is output.

[0070] The temperature transmitter 60 converts the temperature inside the pressure vessel 20 into an electrical signal and transmits it to the container control cabinet 11, and the container control cabinet 11 displays the temperature value inside the pressure vessel 20.

[0071] The pressure transmitter 9 converts the pressure inside the pressure vessel 20 into an electrical signal and transmits it to the container control cabinet 11, and the container control cabinet 11 displays the pressure value inside the pressure vessel 20.

[0072] The container control cabinet 11 controls the locking or unlocking of the safety interlock device 14 according to the pressurized, temperature states and pressure and temperature values inside the pressure vessel 20. For example, when the pressure inside the pressure vessel 20 is greater than the critical pressure and the temperature is greater than the critical temperature, the container control cabinet 11 controls the safety interlock device 14 to lock and prohibits opening the container door. When the pressure and temperature inside the pressure vessel 20 are less than the critical pressure, the container control cabinet 11 controls the safety interlock device 14 to unlock and allows opening the container door.

[0073] Embodiment 2: This embodiment is further optimized on the basis of the above embodiment, and the same parts as the foregoing technical solutions will not be described herein again. As Figures 1 to 4 shown, in order to better implement the detection device of the safety interlock device and the container control cabinet of a quick-opening container described in the present invention, the following setting method is particularly adopted: the main pressure regulation module includes a DC air pump 3, and the DC air pump 3 is connected to the air exhaust 1 through an air path 8 provided with a third solenoid valve 23. The power supply circuit and the main controller are both connected to the DC air pump 3 and the third solenoid valve 23; the auxiliary pressure regulation module includes a micro-pressure air pump 5, and the micro-pressure air pump 5 is connected to the air exhaust 1 through the air path 8. The power supply circuit and the main controller are both connected to the micro-pressure air pump 5. Among them, the DC air pump 3 is used for rapid pressurization; the micro-pressure air pump 5 is used for slow pressure regulation; the third solenoid valve 23 is used to open or close the corresponding air path.

[0074] As a preferred design scheme, the main pressure regulation module includes a DC air pump 3, and the DC air pump 3 is connected to the air exhaust 1 through an air path 8 provided with a third solenoid valve 23. The power supply circuit is respectively connected to the DC air pump 3 and the third solenoid valve 23 to provide the required working voltage for them; the main controller is respectively connected to the DC air pump 3 and the third solenoid valve 23, and the working states (on-off state and opening amount state) of the DC air pump 3 and the third solenoid valve 23 can be controlled through the main controller.

[0075] The pressure - assisted regulation module includes a micro - pressure air pump 5. The micro - pressure air pump 5 is connected to the air discharge 1 through an air path 8. Both the power supply circuit and the main controller are connected to the micro - pressure air pump 5. The power supply circuit can provide the required working voltage for the micro - pressure air pump 5, and the main controller can control the working state of the micro - pressure air pump 5.

[0076] Embodiment 3: This embodiment is further optimized on the basis of any of the above - mentioned embodiments. The same parts as the foregoing technical solutions will not be described herein again. As Figures 1 to 4 shown, to better implement the safety interlock device for a quick - opening container and the detection device for a container control cabinet described in the present invention, the following setting method is particularly adopted: The air discharge 1 is also connected to a pressure - reducing port 4 through an air path 8 provided with a first solenoid valve 21. The air discharge 1 is also provided with a pressure output port 7 through an air path 8. Both the power supply circuit and the main controller are connected to the first solenoid valve 21. Among them, the pressure - reducing port 4 is used for slowly discharging air (reducing pressure) from the cavity (air discharge 1); the first solenoid valve 21 is used to open or close the corresponding air path; the pressure output port 7 is used for externally outputting pressure; and the air path 8 is used for connecting various pressure components.

[0077] As a preferred design, the air discharge 1 is also connected to a pressure - reducing port 4 through an air path 8. A first solenoid valve 21 is provided on this air path 8. The first solenoid valve 21 is respectively connected to the power supply circuit and the main controller. The power supply circuit provides the required working voltage for the first solenoid valve 21, and the main controller is used to control the working state (on - off state and opening amount state) of the first solenoid valve 21, so as to realize the on - off state and opening amount state between the air discharge 1 and the pressure - reducing port 4.

[0078] The air discharge 1 is also provided with a pressure output port 7 through an air path 8. A pressure sensor 6 is also provided on the air discharge 1. The pressure sensor 6 is connected to the main controller, and all the data detected by the pressure sensor 6 are transmitted into the main controller.

[0079] Embodiment 4: This embodiment is further optimized on the basis of any of the above - mentioned embodiments. The same parts as the foregoing technical solutions will not be described herein again. As Figures 1 to 4 shown, to better implement the safety interlock device for a quick - opening container and the detection device for a container control cabinet described in the present invention, the following setting method is particularly adopted: An air path 8 provided with a second solenoid valve 22 is also connected to the air discharge 1. Both the power supply circuit and the main controller are connected to the second solenoid valve 22. Among them, the second solenoid valve 22 is used to open or close the corresponding air path.

[0080] A separate air path 8 is also connected to the air exhaust 1, and a second solenoid valve 22 is installed on the air path 8. The second solenoid valve 22 is connected to the power supply circuit and the main controller. The power supply circuit provides the required operating voltage for the second solenoid valve 22, and the main controller is used to control the on / off state and the opening flow rate state of the second solenoid valve 22.

[0081] Embodiment 5: This embodiment is further optimized on the basis of any of the above embodiments. The same parts as the foregoing technical solutions will not be described herein again. As Figures 1 to 4 shown, in order to better implement a safety interlock device for a quick-opening container and a detection device for a container control cabinet according to the present invention, the following setting method is particularly adopted: The pressure transmitter signal simulation module includes a pressure transmitter signal simulation unit 15 respectively connected to the power supply circuit and the main controller. A pressure transmitter signal simulation unit output port 17 is provided on the pressure transmitter signal simulation unit 15; wherein, the pressure transmitter signal simulation unit 15 is used to simulate the pressure transmitter signal, and the pressure transmitter signal simulation unit output port 17 is used to externally output the simulated pressure transmitter signal.

[0082] Embodiment 6: This embodiment is further optimized on the basis of any of the above embodiments. The same parts as the foregoing technical solutions will not be described herein again. As Figures 1 to 4 shown, in order to better implement a safety interlock device for a quick-opening container and a detection device for a container control cabinet according to the present invention, the following setting method is particularly adopted: The temperature transmitter signal simulation module includes a temperature transmitter signal simulation unit 50 respectively connected to the power supply circuit and the main controller. A temperature transmitter signal simulation unit output port 51 is provided on the temperature transmitter signal simulation unit 50; wherein, the temperature transmitter signal simulation unit 50 is used to simulate the temperature transmitter signal, and the temperature transmitter signal simulation unit output port 51 is used to externally output the simulated temperature transmitter signal.

[0083] Embodiment 7: This embodiment is further optimized on the basis of any of the above embodiments. The same parts as the foregoing technical solutions will not be described herein again. As Figures 1 to 4 shown, in order to better implement a safety interlock device for a quick-opening container and a detection device for a container control cabinet according to the present invention, the following setting method is particularly adopted: The zero-pressure controller signal simulation module includes a zero-pressure signal simulation unit 16 respectively connected to the power supply circuit and the main controller. A zero-pressure signal simulation unit output port 18 is provided on the zero-pressure signal simulation unit 16; wherein, the zero-pressure signal simulation unit 16 is used to simulate the zero-pressure signal, and the zero-pressure signal simulation unit output port 18 is used to externally output the simulated zero-pressure signal.

[0084] Embodiment 8: This embodiment is further optimized based on any of the above embodiments. The same parts as the foregoing technical solutions will not be described herein again. For example Figures 1 to 4 As shown, in order to better implement the safety interlock device of a quick-opening container and the detection device of a container control cabinet according to the present invention, the following setting method is particularly adopted: the pressure transmitter signal simulation unit 15 and the temperature transmitter signal simulation unit 50 adopt the same circuit structure, both of which include a first circuit, a digital signal isolation circuit and a linear voltage stabilization circuit. As Figure 5 shown, the first circuit includes a chip U2 and a transistor Q1. The pins 1 and 2 of the chip U2 are connected to OUT_GND, the pin 3 of the chip U2 is connected to a power supply circuit (SYS_VCC_Tps power supply) and is connected to OUT_GND through a capacitor C14. The pins 4, 5, 6 and 8 of the chip U2 all pass through a digital signal isolation circuit carried by an ISO7762DBQ device (such as Figure 6is connected to the main controller as shown); Pin 7 of chip U2 is connected to the power supply circuit (SYS_VCC_Tps power supply) through resistor R38, Pin 9 of chip U2 is connected to the linear voltage regulator circuit through diode D2, Pin 10 of chip U2 is connected to OUT_GND through resistor R34, Pin 12 of chip U2 is connected to OUT_GND through capacitor C13, the power supply circuit (SYS_VCC_Tps power supply) is also connected to Pin 15 of chip U2, and Pin 15 of chip U2 is also connected to OUT_GND through capacitor C3, Pin 14 of chip U2 is connected to OUT_GND through capacitor C4, and Pin 13 of chip U2 is connected to OUT_GND through capacitors C7 and C8 in parallel; Pin 16 of chip U2 is connected to the second terminal (base) of transistor Q1, the first terminal (emitter) of transistor Q1 is connected to OUT_GND through resistor R30, the third terminal (collector) of transistor Q1 is connected to the linear voltage regulator circuit through diode D1, the positive electrode of diode D1 is connected to the third terminal of transistor Q1, and the negative electrode of diode D1 is also connected to two capacitors C1 and C2 in parallel, and the second terminals of capacitors C1 and C2 form the LOOP- node; A capacitor C6 is connected to the second terminal of transistor Q1 with modifications, and the second terminal of capacitor C6 forms the LOOP- node; Chip U2 uses DAC161S997, which is a low-power 16-bit ΣΔ digital-to-analog converter (DAC) that can send an analog output current in an industry-standard 4-20mA current loop; It has a four-wire serial peripheral interface (SPI) for data transfer and DAC function configuration; It uses an internal ultra-low-power reference voltage and an internal oscillator; The loop driver of DAC161S997 can be connected to the HART modulator to inject digital data modulated by frequency-shift keying (FSK) into the 4-20mA current loop; It uses a 16-pin 4mm × 4mm thin quad flat no-lead (WQFN) package and is rated to operate in the extended industrial temperature range of -40°C to +105°C; DAC161S997 exchanges data with the "Expansion Interface 1" of the main control board through the SPI interface; The externally output 4-20mA current signal is output through the P1 interface.

[0085] Pin 5 of chip U2 is for SPI data input, Pin 6 is for chip select function, and Pin 8 is for SPI data output. This circuit implements a 4 to 20mA current loop transmitter; The LOOP_PWR node is connected to the main power supply of the power module section; SYS_VCC_TPs is a 3.3V voltage.

[0086] As Figure 6As shown, the digital signal isolation circuit is built using the ISO7762DBQ device (chip U1). The ISO7762DBQ device is a high-performance six-channel digital isolator that provides isolation ratings of 5000VRMS (DW package) and 3000VRMS (DBQ package) compliant with UL 1577. This series of devices has also passed VDE, CSA, TUV, and CQC certifications.

[0087] Pin 3 of chip U1 is the input of channel A, pin 4 is the input of channel B, pin 5 is the input of channel C, pin 6 is the output of channel D, pin 14 is the output of channel A, pin 13 is the output of channel B, pin 12 is the output of channel C, and pin 11 is the input of channel D; the digital signal isolation circuit enables the main controller to isolate and control the signal simulation units of the pressure transmitter and the temperature transmitter.

[0088] As Figure 7 shown, the linear voltage regulator circuit includes chip U3, P1 interface, resistor R33, resistor R32, resistor R35, resistor R31, resistor R37, resistor R39, capacitor C5, capacitor C10, capacitor C15, capacitor C11, capacitor C12, diode D3, and diode D4. Pin 1 of chip U3 is connected to the power supply circuit (SYS_VCC_Tps power supply), and pin 1 of chip U3 is also connected to OUT_GND through capacitor C12, connected to OUT_GND through capacitor C11, and connected to OUT_GND through the series-connected resistors R33 and R37. The common connection end of resistors R33 and R37 is connected to pin 2 of chip U3. Pins 4 and 9 of chip U3 are commonly connected and connected to OUT_GND. Pin 5 of chip U3 is connected to the cathode of diode D1 (negative electrode) through the series-connected resistors R35 and R31. Pin 6 of chip U3 is connected to OUT_GND through capacitor C15. The common connection end of resistors R35 and R31 is connected to pin 8 of chip U3. The common connection end of resistors R35 and R31 is connected to the first end of capacitor C10. The second end of capacitor C10 is connected to OUT_GND. The first end of capacitor C10 is connected to the first pin of the P1 interface (this pin is connected to the PLC_VCC of the power supply circuit) through diode D3. At the anode of diode D3, it is connected to the LOOP- node through diode D4, and capacitor C5 is connected in parallel at diode D4. The second pin of the P1 interface is connected to OUT_GND through resistor R39, and the third pin of the P1 interface is connected to the LOOP- node.

[0089] The main controller uses ST (STMicroelectronics) _STM32F429ZGT6TR; STM32F429ZGT6 controls the rotation speed of the air pump motor (DC air pump) by outputting a hardware PWM wave through the timer module, thereby controlling the boost rate; STM32F429ZGT6 exchanges data information with the resistive touch screen (LCD screen) through the UART module; STM32F429ZGT6 can obtain the pressure data of the pressure sensor through the IIC module; STM32F429ZGT6 controls the stepping motor (micro-pressure air pump) and obtains the status of the stepping motor and the driver chip through the IO, timer, and pulse capture; STM32F429ZGT6 controls the output level signal of the driver and the status of the solenoid valve through the IO output module.

[0090] Embodiment 9: This embodiment is further optimized on the basis of any of the above embodiments, and the same parts as the foregoing technical solutions will not be described herein again. As Figures 1 to 4 shown, a safety interlock device for a quick-opening container and a detection method for a container control cabinet, using the described safety interlock device for a quick-opening container and a detection device for a container control cabinet, detect the safety interlock device 14, including the following steps: 1) Remove the pressure transmitter 9 and the zero-pressure controller 10 from the pressure vessel 20, connect the pressure transmitter 9 and the zero-pressure controller 10 using a tee, and connect the remaining port of the tee to the pressure output port 7 through the air path 8; 2 Connect the temperature transmitter signal simulation module (the temperature transmitter signal simulation unit output port 51 provided on the temperature transmitter signal simulation unit 50) to the container control cabinet 11 through a new temperature transmitter signal line 52; 3) Set corresponding parameters on the LCD screen, and the corresponding parameters include critical pressure, target pressure, critical temperature, target temperature, voltage stabilization time, number of tests, etc.; 4) Switch the test mode on the LCD screen to the quick-opening test function; 5) Click the start button on the LCD screen to start pressurization and heating, and enter the pressurization state and the heating state; 6) Open the second solenoid valve 22 and connect the air discharge 1 to the atmospheric pressure; 7) When the air pressure returns to zero, close the second solenoid valve 22; 8) Open the third solenoid valve 23 and the DC air pump 3, and the DC air pump 3 quickly pressurizes the air discharge 1; 9) Monitor the real-time pressure value information in the air discharge 1 through the pressure sensor 6; 10) Monitor the real-time temperature output value information through the LCD screen (preferably a 10-inch liquid crystal touch screen); 11) When it is monitored that the real-time pressure value and temperature value rise to the critical pressure and critical temperature, observe whether the safety interlock device 14 is locked; 12) Continue to pressurize with the DC air pump 3 until 95% of the target pressure is reached, then close the third solenoid valve 23 and the DC air pump 3. At the same time, the temperature transmitter signal simulation module (outputs a simulated temperature increase signal through the output port 51 of the temperature transmitter signal simulation unit); 13) Use the micro-pressure air pump 5 to slowly adjust the pressure until it reaches the target pressure ±0.015 kPa; 14) When it is detected that the real-time pressure value reaches the target and the simulated temperature increase reaches the set simulated range, close all solenoid valves (the first solenoid valve 21, the second solenoid valve 22, and the third solenoid valve 23), enter the pressure stabilization state, and start calculating the pressure stabilization duration; 15) After the pressure stabilization time is reached, open the first solenoid valve 21 and use the pressure relief port 4 to slowly relieve the pressure; 16) When the real-time pressure value and temperature value drop to the critical pressure and critical temperature, observe whether the safety interlock device 14 is unlocked; 17) Continue to relieve the pressure and lower the temperature until the pressure in the air chamber 1 is completely exhausted; 18) Determine whether the set number of tests is completed. If not, repeat steps 3) to 17). If completed, end the test.

[0091] Example 8: This example is further optimized on the basis of any of the above examples. The same parts as the previous technical solutions will not be described here again. As Figures 1 to 4 shown, a method for detecting a safety interlock device and a container control cabinet of a quick-opening container uses the described detection device for the safety interlock device and the container control cabinet of the quick-opening container to detect the container control cabinet 11, including the following steps: S1. Remove the ends of the zero-pressure controller signal line 12, the temperature transmitter signal line 61, and the pressure transmitter signal line 13 that are connected to the zero-pressure controller 10, the temperature transmitter 60, and the pressure transmitter 9, and then connect the zero-pressure controller signal line 12, the temperature transmitter signal line 61, and the pressure transmitter signal line 13 to the zero-pressure signal simulation unit output port 18, the temperature transmitter signal simulation unit output port 51, and the pressure transmitter signal simulation unit output port 17 respectively; S2. Set the simulated range, the zero-pressure control default state (there are two states for the zero-pressure control default state, "normally open" and "normally closed". For example, if the default is set to normally open, when the output simulated pressure and temperature are less than the critical pressure and critical temperature, the zero-pressure control outputs a disconnection signal; when the output simulated pressure and temperature are greater than the critical pressure and Curie temperature, a closing signal is output), the critical pressure, the critical temperature, the number of tests, etc. through the liquid crystal screen; S3. Switch the test mode on the liquid crystal screen to the control cabinet test function; S4. Click the start button through the liquid crystal screen to start simulating pressurization and temperature increase, and externally output analog pressure signals, analog temperature signals, and analog zero-pressure signals; S5. When the analog pressure is greater than the critical pressure and the analog temperature is greater than the critical temperature, the externally output analog zero-pressure signal is a pressurized signal; when the analog pressure is less than the critical pressure and the analog temperature is less than the critical temperature, the externally output analog zero-pressure signal is a non-pressurized signal. Observe whether the safety interlock device 14 is locked; S6. Continue to simulate pressurization and temperature increase to the set analog range; S7. Determine whether the pressure and temperature of the analog output reach the analog range. If they reach, enter the steady-state voltage state, and start calculating the duration of the steady-state voltage; S8. After the steady-state voltage time is reached, start simulating decompression and temperature decrease; S9. When the analog pressure and temperature drop to the critical pressure and critical temperature, observe whether the safety interlock device 14 is unlocked; S10. Continue decompression and temperature decrease until the analog pressure and analog temperature outputs are 0; S11. Determine whether the set number of test times is completed. If not, repeat steps S4 - S11. If completed, end the test.

[0092] Embodiment 9: This embodiment is further optimized on the basis of the above embodiment. The same parts as the foregoing technical solutions will not be described herein again. As Figures 1 to 4 shown, to better implement the safety interlock device of a quick-opening container and the detection method of the container control cabinet described in the present invention, the following setting method is particularly adopted: In step S1, or remove the original zero-pressure controller signal line 12, temperature transmitter signal line 61, and pressure transmitter signal line 13 of the quick-opening container, and then connect one end of the new zero-pressure controller signal line 12 to the interface on the container control cabinet side and the other end to the output port 18 of the zero-pressure signal simulation unit; connect one end of the new pressure transmitter signal line 13 to the interface on the container control cabinet side and the other end to the output port 17 of the pressure transmitter signal simulation unit; connect one end of the new temperature transmitter signal line 52 to the interface on the container control cabinet side and the other end to the output port 51 of the temperature transmitter signal simulation unit.

[0093] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Any simple modification and equivalent change made to the above embodiments based on the technical essence of the present invention all fall within the protection scope of the present invention.

Claims

1. A safety interlock device for a quick-opening container and a detection device for a container control cabinet, characterized in that: It includes a power supply circuit, a main controller, a liquid crystal display screen, a main pressure regulation module, an auxiliary pressure regulation module, a pressure transmitter signal simulation module, a zero-pressure controller signal simulation module, a temperature transmitter signal simulation module, a storage module, and an air exhaust (1). The power supply circuit is respectively connected to the liquid crystal display screen, the main controller, the liquid crystal display screen, the main pressure regulation module, the auxiliary pressure regulation module, the pressure transmitter signal simulation module, the zero-pressure controller signal simulation module, the temperature transmitter signal simulation module, and the storage module. The main controller is respectively connected to the liquid crystal display screen, the main pressure regulation module, the auxiliary pressure regulation module, the pressure transmitter signal simulation module, the temperature transmitter signal simulation module, the zero-pressure controller signal simulation module, and the storage module. The air exhaust (1) is respectively connected to the main pressure regulation module and the auxiliary pressure regulation module. A pressure sensor (6) is also arranged on the air exhaust (1) through an air path (8), and the pressure sensor (6) is connected to the main controller.

2. The safety interlock device for a quick-opening container and the detection device for a container control cabinet according to claim 1, characterized in that: The main pressure regulation module includes a DC air pump (3). The DC air pump (3) is connected to the air exhaust (1) through an air path (8) provided with a third solenoid valve (23). The power supply circuit and the main controller are both connected to the DC air pump (3) and the third solenoid valve (23). The auxiliary pressure regulation module includes a micro-pressure air pump (5). The micro-pressure air pump (5) is connected to the air exhaust (1) through an air path (8). The power supply circuit and the main controller are both connected to the micro-pressure air pump (5).

3. The safety interlock device for a quick-opening container and the detection device for a container control cabinet according to claim 1, characterized in that: The air exhaust (1) is also connected to a pressure reducing port (4) through an air path (8) provided with a first solenoid valve (21). The air exhaust (1) is also provided with a pressure output port (7) through an air path (8). The power supply circuit and the main controller are both connected to the first solenoid valve (21).

4. The safety interlock device for a quick-opening container and the detection device for a container control cabinet according to claim 1, characterized in that: An air path (8) provided with a second solenoid valve (22) is also connected to the air exhaust (1). The power supply circuit and the main controller are both connected to the second solenoid valve (22).

5. The safety interlock device for a quick-opening container and the detection device for a container control cabinet according to claim 1, characterized in that: The pressure transmitter signal simulation module includes a pressure transmitter signal simulation unit (15) respectively connected to the power supply circuit and the main controller. A pressure transmitter signal simulation unit output port (17) is arranged on the pressure transmitter signal simulation unit (15).

6. The safety interlock device for a quick-opening container and the detection device for a container control cabinet according to claim 1, characterized in that: The temperature transmitter signal simulation module includes a temperature transmitter signal simulation unit (50) respectively connected to the power supply circuit and the main controller. A temperature transmitter signal simulation unit output port (51) is arranged on the temperature transmitter signal simulation unit (50).

7. The safety interlock device for a quick-opening container and the detection device for a container control cabinet according to claim 1, characterized in that: The zero-pressure controller signal simulation module includes a zero-pressure signal simulation unit (16) respectively connected to the power supply circuit and the main controller. A zero-pressure signal simulation unit output port (18) is arranged on the zero-pressure signal simulation unit (16).

8. A safety interlock device for a quick-opening container and a detection method for a container control cabinet, characterized in that: Using the detection device for a safety interlock device and a container control cabinet of a quick-opening container described in any one of claims 1 to 7, to detect the safety interlock device (14), includes the following steps: 1) Remove the pressure transmitter (9) and zero-pressure controller (10) from the pressure vessel (20), connect the pressure transmitter (9) and zero-pressure controller (10) using a tee, and connect the remaining port of the tee to the pressure output port (7) through the gas path (8); 2) Connect the temperature transmitter signal simulation module to the container control cabinet (11) through a new temperature transmitter signal line (52); 3) Set the corresponding parameters on the liquid crystal screen, and the corresponding parameters include critical pressure, target pressure, critical temperature, target temperature, voltage stabilization time, and number of tests; 4) Switch the test mode on the liquid crystal screen to the quick-opening door test function; 5) Click the start button on the liquid crystal screen to start pressurization and heating, and enter the pressurization state and heating state; 6) Open the second solenoid valve (22) and connect the gas exhaust (1) to the atmospheric pressure; 7) After the air pressure returns to zero, close the second solenoid valve (22); 8) Open the third solenoid valve (23) and the DC air pump (3), and the DC air pump (3) quickly pressurizes the gas exhaust (1); 9) Monitor the real-time pressure value information inside the gas exhaust (1) through the pressure sensor (6); 10) Monitor the real-time temperature output value information through the liquid crystal screen; 11) When it is monitored that the real-time pressure value and temperature value rise to the critical pressure and critical temperature, observe whether the safety interlock device (14) is locked; 12) Continue to pressurize using the DC air pump (3) until 95% of the target pressure is reached, close the third solenoid valve (23) and the DC air pump (3), and at the same time, the temperature transmitter signal simulation module outputs an analog heating signal; 13) Use the micro-pressure air pump (5) to slowly adjust the pressure until it reaches the target pressure ±0.015 kPa; 14) When it is detected that the real-time pressure value reaches the target and the analog heating reaches the set analog range, close all solenoid valves, enter the voltage stabilization state, and start calculating the voltage stabilization duration; 15) After the voltage stabilization time is reached, open the first solenoid valve (21) and use the pressure relief port (4) to slowly relieve the pressure; 16) When the real-time pressure value and temperature value drop to the critical pressure and critical temperature, observe whether the safety interlock device (14) is unlocked; 17) Continue to relieve the pressure and cool down until the pressure inside the gas exhaust (1) is completely exhausted; 18) Judge whether the set number of tests is completed. If not, repeat steps 3) to 17). If completed, end the test.

9. A safety interlock device for a quick-opening container and a detection method for a container control cabinet, characterized in that: Use the detection device for the safety interlock device and container control cabinet of a quick-opening container as described in any one of claims 1 to 7 to detect the container control cabinet (11), including the following steps: S1. Remove the ends of the zero-pressure controller signal line (12), temperature transmitter signal line (61), and pressure transmitter signal line (13) that are connected to the zero-pressure controller (10), temperature transmitter (60), and pressure transmitter (9), and then connect the zero-pressure controller signal line (12), temperature transmitter signal line (61), and pressure transmitter signal line (13) to the zero-pressure signal simulation unit output port (18), temperature transmitter signal simulation unit output port (51), and pressure transmitter signal simulation unit output port (17) respectively; S2. Set the analog range, default state of zero pressure control, critical pressure, critical temperature, and number of tests through the LCD screen; S3. Switch the test mode on the LCD screen to the test function of the control cabinet; S4. Click the start button on the LCD screen to start analog pressurization and heating, and output analog pressure signal, analog temperature signal, and analog zero pressure signal externally; S5. When the analog pressure is greater than the critical pressure and the analog temperature is greater than the critical temperature, the externally output analog zero pressure signal is a pressurized signal; when the analog pressure is less than the critical pressure and the analog temperature is less than the critical temperature, the externally output analog zero pressure signal is a non-pressurized signal, and observe whether the safety interlock device (14) is locked; S6. Continue to simulate pressurization and heating to the set analog range; S7. Judge whether the pressure and temperature of the analog output reach the analog range. If so, enter the voltage stabilization state and start calculating the voltage stabilization duration; S8. After the voltage stabilization time is reached, start analog pressure reduction and cooling; S9. When the analog pressure and temperature drop to the critical pressure and critical temperature, observe whether the safety interlock device (14) is unlocked; S10. Continue to reduce pressure and cool down until the analog pressure and analog temperature outputs are 0; S11. Judge whether the set number of tests is completed. If not, repeat steps S4 - S11. If completed, end the test.

10. The detection method of a safety interlock device and a container control cabinet for a quick-opening container according to claim 9, characterized in that: Step S1 may be to remove the original zero pressure controller signal wire (12), temperature transmitter signal wire (61), and pressure transmitter signal wire (13) of the quick-opening container, and then connect one end of the new zero pressure controller signal wire (12) to the container control cabinet side interface and the other end to the zero pressure signal simulation unit output port (18); connect one end of the new pressure transmitter signal wire (13) to the container control cabinet side interface and the other end to the pressure transmitter signal simulation unit output port (17), and connect one end of the new temperature transmitter signal wire (52) to the container control cabinet side interface and the other end to the temperature transmitter signal simulation unit output port (51).

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