High-temperature steam control circuit of sterilizer

Abstract

The utility model relates to the related technical field of sterilization equipment, in particular to a high-temperature steam control circuit of a sterilizer, which comprises a control board, a control output module, a sensor detection module and a man-machine interaction module are integrated on the upper surface of the control board, and the control output module, the sensor detection module and the man-machine interaction module are integrated on the upper surface of the control board. A data processing module is integrated on the upper surface of the control panel, and an alarm module is integrated on the upper surface of the control panel. According to the high-temperature steam control circuit of the sterilizer, through the arrangement of the control output module and the sensor detection module, when the high-temperature steam control circuit is used, accurate control over a high-temperature steam device of the sterilizer is achieved, the sterilization requirements of different objects can be met, the sterilization effect and quality are improved, a liquid crystal screen and keys are externally connected, operation is simple and visual, and the practicability is high. And in cooperation with a printer and a buzzer, the use experience of a user is improved, and the workload and the misoperation risk of an operator are reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of sterilization equipment, and in particular to a high-temperature steam control circuit for a sterilizer. Background Technology

[0002] A sterilizer is a device that can kill or remove all microorganisms on a transmission medium. In many fields such as medicine, scientific research, and food processing, sterilization is a key link in ensuring hygiene and safety. As the core equipment for achieving sterilization, the performance and reliability of the sterilizer are of paramount importance. High-temperature steam sterilization has become one of the most widely used sterilization methods due to its efficient and thorough sterilization effect. However, existing high-temperature steam control circuits for sterilizers have many shortcomings in terms of functional integration, control accuracy, data management, and human-computer interaction. Therefore, a high-temperature steam control circuit for sterilizers is particularly needed.

[0003] However, existing sterilizers only have basic steam generation control circuits, lacking the ability to comprehensively and accurately monitor and regulate the equipment's operating status, and thus cannot meet the diverse requirements of different items for sterilization temperature, pressure, and time. Utility Model Content

[0004] The purpose of this invention is to provide a high-temperature steam control circuit for a sterilizer, in order to solve the problem mentioned in the background art that the control circuit of the existing sterilizer can only achieve basic steam generation control, lacks the ability to comprehensively and accurately monitor and regulate the operating status of the equipment, and cannot meet the diverse requirements of different items for sterilization temperature, pressure and time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature steam control circuit for a sterilizer, comprising a control board, a control output module integrated on the upper surface of the control board, a sensor detection module integrated on the upper surface of the control board, a human-machine interaction module integrated on the upper surface of the control board, a data processing module integrated on the upper surface of the control board, and an alarm module integrated on the upper surface of the control board.

[0006] The control output module includes 7 220VAC outputs, which are connected to the heating element, vacuum pump, water pump and solenoid valve respectively. They are used to control the heating element to generate high temperature steam, the vacuum pump to extract air, the water pump to deliver water, and the solenoid valve to control the water flow. It also has 2 24VDC outputs, which are used to control the power supply of the automatic door lock and the water pump respectively.

[0007] The sensor detection module includes three platinum resistance temperature sensor detection circuits for detecting the temperature inside the sterilization chamber and the heating device, one pressure sensor for detecting the pressure inside the sterilization chamber, and one water quality detection circuit for monitoring the water quality of the source water.

[0008] The human-machine interaction module includes an external LCD screen and buttons. The LCD screen is used to display the sterilizer's operating status, and the buttons are used to input control commands.

[0009] The data processing module includes an external printer for printing operational data, a built-in RTC real-time clock to provide a time reference for device operation, and a built-in file system for storing historical operational data, and supports exporting all historical data via USB flash drive.

[0010] The alarm module includes a buzzer for issuing an alarm when the equipment malfunctions.

[0011] Preferably, the 7-channel 220VAC output of the control output module can precisely control the power of the heating element according to different stages of the sterilization process, and one of the 2-channel 24VDC outputs precisely controls the opening and closing state of the automatic door lock, while the other provides a stable power supply for the water pump.

[0012] Preferably, the platinum resistance temperature sensor in the three-channel platinum resistance temperature sensor detection circuit of the sensor detection module has high accuracy and good stability, and can convert the temperature signal into an electrical signal and transmit it to the control output module.

[0013] Preferably, the control output module can dynamically adjust the working status of devices such as heating tubes, water pumps, and solenoid valves based on the temperature and pressure data fed back by the platinum resistance temperature sensor detection circuit and the pressure sensor.

[0014] Preferably, the water quality detection circuit of the sensor detection module monitors the water quality of the source water in real time, and when the water quality is detected to be unsatisfactory, the alarm module issues an alarm signal.

[0015] Preferably, the operating status information displayed on the LCD screen of the human-machine interaction module includes temperature, pressure, sterilization time countdown, and equipment fault information. The buttons of the human-machine interaction module can be used to start and stop the sterilization program and set sterilization parameters.

[0016] Preferably, the RTC real-time clock of the data processing module is the precise time of each running data record, and the built-in file system of the data processing module automatically stores the historical running data of the device. After inserting a USB flash drive, the device can export all historical data to the USB flash drive.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This high-temperature steam control circuit for a sterilizer, through the setting of the control output module and sensor detection module, achieves precise control of the high-temperature steam device of the sterilizer during use, which can meet the sterilization requirements of different items and improve the sterilization effect and quality;

[0019] 2. Through the data processing module settings, historical operating data is stored in the built-in file system during use and can be exported to a USB flash drive, which facilitates data statistical analysis, equipment performance evaluation and quality traceability, providing a strong basis for equipment maintenance and optimization. In addition, the external LCD screen and buttons make operation simple and intuitive. With the printer and buzzer, the user experience is improved and the workload of operators and the risk of misoperation are reduced. Attached Figure Description

[0020] Figure 1 This is a side view of the appearance structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the control board's workflow.

[0022] Figure 3 This is a schematic diagram of the working process of the control output module of this utility model;

[0023] Figure 4 This is a schematic diagram of the working process of the sensor detection module of this utility model;

[0024] Figure 5 This is a schematic diagram of the workflow of the data processing module of this utility model.

[0025] In the diagram: 1. Control board; 2. Control output module; 3. Sensor detection module; 4. Human-machine interaction module; 5. Data processing module; 6. Alarm module. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 This utility model provides a technical solution: a high-temperature steam control circuit for a sterilizer, including a control board 1, a control output module 2 integrated on the upper surface of the control board 1, a sensor detection module 3 integrated on the upper surface of the control board 1, a human-computer interaction module 4 integrated on the upper surface of the control board 1, a data processing module 5 integrated on the upper surface of the control board 1, and an alarm module 6 integrated on the upper surface of the control board 1.

[0028] The control output module 2 includes 7 220VAC outputs, which are connected to the heating element, vacuum pump, water pump and solenoid valve respectively. It is used to control the heating element to generate high temperature steam, the vacuum pump to extract air, the water pump to deliver water source and the solenoid valve to control the water flow. It also has 2 24VDC outputs, which are used to control the power supply of the automatic door lock and the water pump respectively.

[0029] The sensor detection module 3 includes three platinum resistance temperature sensor detection circuits for detecting the temperature inside the sterilization chamber and the heating device, one pressure sensor for detecting the pressure inside the sterilization chamber, and one water quality detection circuit for monitoring the water quality of the source water.

[0030] Human-machine interaction module 4 includes an external LCD screen and buttons. The LCD screen is used to display the sterilizer's operating status, and the buttons are used to input control commands.

[0031] The data processing module 5 includes an external printer for printing operational data, a built-in RTC real-time clock to provide a time reference for device operation, and a built-in file system for storing historical operational data, and supports exporting all historical data via USB flash drive.

[0032] Alarm module 6 includes a buzzer for sounding an alarm when the equipment malfunctions.

[0033] Furthermore, the 7-channel 220VAC output of the control output module 2 can precisely control the power of the heating element according to different stages of the sterilization program. One of the 2-channel 24VDC outputs precisely controls the opening and closing status of the automatic door lock, and the other provides a stable power supply to the water pump. Through the settings of the control output module 2, when the sterilization program is started, the control output module 2 controls the 7-channel 220VAC output according to the preset sterilization program stages. In the initial stage of sterilization, in order to quickly generate high-temperature steam, the control output module 2 will increase the power supplied to the heating element, so that the heating element heats up quickly to generate steam. When the temperature inside the sterilization chamber approaches the set value, the power of the heating element is reduced to maintain a stable steam temperature. Simultaneously, the system controls the start and stop of the vacuum pump. Before sterilization begins, the vacuum pump is activated to extract air from the sterilization chamber, creating favorable conditions for steam entry and uniform distribution. It also controls the operation of the water pump and solenoid valve to ensure that the appropriate amount of water is delivered to the heating area at the right time, generating continuous and stable high-temperature steam. One of the two 24VDC outputs is used to precisely control the opening and closing of the automatic door lock. After the sterilization program starts, the automatic door lock closes to prevent accidental opening of the sterilization chamber by personnel during sterilization, ensuring the safety and sealing of the sterilization process. After the sterilization program ends and the pressure and temperature inside the chamber drop to a safe range, the automatic door lock opens. The other 24VDC output provides a stable power supply to the water pump, ensuring a stable water supply for steam generation.

[0034] Furthermore, the platinum resistance temperature sensor in the three-channel platinum resistance temperature sensor detection circuit of sensor detection module 3 has high accuracy and good stability. It can convert temperature signals into electrical signals and transmit them to control output module 2. Through the settings of sensor detection module 3, during use, the three-channel platinum resistance temperature sensor detection circuit monitors the temperature inside the sterilization chamber and the heating device in real time. The platinum resistance temperature sensor has the characteristics of high accuracy and high stability, and can accurately sense minute temperature changes and convert temperature signals into electrical signals and transmit them to control output module 2. Based on the received temperature signals, control output module 2 determines whether the current temperature meets the requirements of the sterilization program, and then adjusts the power of the heating tube to achieve precise temperature control. One pressure sensor detects the pressure inside the sterilization chamber in real time and feeds the pressure signal back to control output module 2. Control output module 2 combines temperature and pressure data to comprehensively judge the state inside the sterilization chamber and dynamically adjusts the working status of equipment such as heating tube, water pump, and solenoid valve to ensure that the pressure inside the sterilization chamber is stable within the set range to meet the sterilization requirements of different items.

[0035] Furthermore, the control output module 2 can dynamically adjust the working status of devices such as heating tubes, water pumps, and solenoid valves based on the temperature and pressure data fed back by the platinum resistance temperature sensor detection circuit and the pressure sensor. Through the settings of the control output module 2 and the sensor detection module 3, the sensor detection module 3 can transmit data to the control output module 2 during use, allowing the control output module 2 to adjust devices such as heating tubes, water pumps, and solenoid valves in a timely manner, thereby improving work efficiency.

[0036] Furthermore, the water quality detection circuit of sensor detection module 3 monitors the water quality of the source water in real time. When the water quality is detected to be unsatisfactory, alarm module 6 issues an alarm signal. The sensor detection module 3 is configured such that, during use, one water quality detection circuit continuously monitors the water quality of the source water. When the water quality is detected to be unsatisfactory, the water quality detection circuit transmits a signal to alarm module 6, and the buzzer of alarm module 6 issues an alarm signal to remind the operator to replace the water source or perform water treatment in time, so as to avoid the water quality problem affecting the steam quality and sterilization effect, and at the same time protect the equipment components and extend the service life of the equipment.

[0037] Furthermore, the LCD screen of the human-machine interface module 4 displays operating status information including temperature, pressure, sterilization time countdown, and equipment fault information. The buttons on the human-machine interface module 4 can be used to start and stop the sterilization program and set sterilization parameters. Through the settings of the human-machine interface module 4, the external LCD screen displays the operating status information of the sterilizer in real time during use, including the temperature, pressure, sterilization time countdown, and whether the equipment has malfunctioned. Operators can intuitively understand the working status of the sterilizer through the LCD screen and promptly detect abnormalities. The buttons are used for operators to input various control commands. Operators can start or stop the sterilization program and set the required sterilization parameters such as temperature, pressure, and time. The control output module 2 adjusts the operating status of the sterilizer according to the commands input by the operator to meet different sterilization needs.

[0038] Furthermore, the RTC real-time clock in data processing module 5 records the precise time for each operation. The built-in file system in data processing module 5 automatically stores the device's historical operating data. After inserting a USB flash drive, the device can export all historical data to the USB flash drive. Through the settings of data processing module 5, an external printer can print sterilizer operating data such as temperature, pressure, and time at any time according to the operator's needs. This printed data can serve as a device operating record for quality traceability, equipment maintenance, and data analysis. The built-in RTC real-time clock provides a precise time reference for device operation. During each operation, the RTC real-time clock records the device's start time, various time nodes during operation, and end time, and associates this time information with the corresponding operating data for convenient subsequent data management and analysis. The built-in file system automatically stores the device's historical operating data, including temperature, pressure, water quality test results, sterilization time, and other information. When further analysis or archiving of historical data is needed, the operator only needs to insert a USB flash drive, and the device can export all historical data to the USB flash drive for easy data backup and management.

[0039] Working Principle: After the sterilization program starts, control output module 2 controls the 7 channels of 220VAC output according to different stages of the preset sterilization program. In the initial stage of sterilization, in order to quickly generate high-temperature steam, control output module 2 increases the power supplied to the heating element, causing the heating element to heat up rapidly and generate steam. When the temperature inside the sterilization chamber approaches the set value, the power of the heating element is reduced to maintain a stable steam temperature. At the same time, the start and stop of the vacuum pump are controlled. Before sterilization begins, the vacuum pump is started to extract air from the sterilization chamber, creating favorable conditions for steam to enter and distribute evenly. The operation of the water pump and solenoid valve is controlled to ensure that the appropriate amount of water is delivered to the heating area at the right time to generate continuous and stable high-temperature steam. One of the 2 channels of 24VDC output is... The 4VDC output is used to precisely control the opening and closing of the automatic door lock. After the sterilization program starts, the automatic door lock closes to prevent accidental opening of the sterilization chamber by personnel, ensuring the safety and sealing of the sterilization process. After the sterilization program ends and the pressure and temperature inside the chamber drop to a safe range, the automatic door lock opens. Another 24VDC output provides a stable power supply to the water pump, ensuring a stable water supply for steam generation. Three platinum resistance temperature sensor circuits monitor the temperature inside the sterilization chamber and the heating elements in real time. The platinum resistance temperature sensors are characterized by high precision and high stability, accurately sensing minute temperature changes and converting the temperature signal into an electrical signal, which is then transmitted to the control output module 2 to control the output. Module 2, based on the received temperature signal, determines whether the current temperature meets the requirements of the sterilization procedure and adjusts the power of the heating element to achieve precise temperature control. A pressure sensor detects the pressure inside the sterilization chamber in real time and feeds the pressure signal back to control output module 2. Control output module 2 combines the temperature and pressure data to comprehensively judge the state inside the sterilization chamber and dynamically adjusts the working status of the heating element, water pump, solenoid valve, and other equipment to ensure that the pressure inside the sterilization chamber remains stable within the set range to meet the sterilization requirements of different items. A water quality detection circuit continuously monitors the water source quality. When the water quality is detected to be unsatisfactory, the water quality detection circuit transmits a signal to alarm module 6. The buzzer of alarm module 6 sounds an alarm signal to remind the operator to take timely action. Changing the water source or treating the water quality can prevent water quality issues from affecting steam quality and sterilization effectiveness, while also protecting equipment components and extending equipment lifespan. An external LCD screen displays real-time operating status information for the sterilizer, including temperature, pressure, sterilization time countdown, and any malfunctions within the sterilization chamber. Operators can intuitively understand the sterilizer's operating status through the LCD screen and promptly identify any abnormalities. Buttons allow operators to input various control commands, starting or stopping the sterilization program and setting parameters such as temperature, pressure, and time. The control output module 2 adjusts the sterilizer's operating status based on operator input to meet different sterilization needs. An external printer can be connected as needed.The sterilizer can print out operational data such as temperature, pressure, and time at any time. This printed data can serve as a record of equipment operation for quality traceability, equipment maintenance, and data analysis. The built-in RTC real-time clock provides a precise time reference for equipment operation. During each run, the RTC records the start time, various time points during operation, and the end time, and associates this time information with the corresponding operational data for easy subsequent data management and analysis. The built-in file system automatically stores historical operational data, including temperature, pressure, water quality test results, and sterilization time. When further analysis or archiving of historical data is needed, the operator simply inserts a USB flash drive, and the device can export all historical data to the USB flash drive for easy data backup and management.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature steam control circuit for a sterilizer, comprising a control board (1), characterized in that: The upper surface of the control board (1) is integrated with a control output module (2), a sensor detection module (3), a human-computer interaction module (4), a data processing module (5), and an alarm module (6). The control output module (2) includes 7 220VAC outputs, which are connected to the heating tube, vacuum pump, water pump and solenoid valve respectively. They are used to control the heating tube to generate high temperature steam, the vacuum pump to extract air, the water pump to deliver water source and the solenoid valve to control the water flow. It also has 2 24VDC outputs, which are used to control the power supply of the automatic door lock and the water pump respectively. The sensor detection module (3) includes a 3-channel platinum resistance temperature sensor detection circuit for detecting the temperature inside the sterilization chamber and the heating device respectively, a 1-channel pressure sensor for detecting the pressure inside the sterilization chamber, and a 1-channel water quality detection circuit for monitoring the water quality of the water source. The human-machine interaction module (4) includes an external LCD screen and buttons. The LCD screen is used to display the sterilizer's operating status, and the buttons are used to input control commands. The data processing module (5) includes an external printer for printing running data, a built-in RTC real-time clock for providing a time reference for device operation, and a built-in file system for storing historical running data, and supports exporting all historical data via USB flash drive. The alarm module (6) includes a buzzer for issuing an alarm when the equipment malfunctions.

2. The high-temperature steam control circuit for a sterilizer according to claim 1, characterized in that: The 7-channel 220VAC output of the control output module (2) can precisely control the power of the heating tube according to different stages of the sterilization process. One of the 2-channel 24VDC outputs precisely controls the opening and closing state of the automatic door lock, and the other provides a stable power supply for the water pump.

3. The high-temperature steam control circuit for a sterilizer according to claim 1, characterized in that: The platinum resistance temperature sensor in the 3-channel platinum resistance temperature sensor detection circuit of the sensor detection module (3) has high accuracy and good stability, and can convert the temperature signal into an electrical signal and transmit it to the control output module (2).

4. The high-temperature steam control circuit for a sterilizer according to claim 1, characterized in that: The control output module (2) can dynamically adjust the working status of the heating tube, water pump, and solenoid valve based on the temperature and pressure data fed back by the platinum resistance temperature sensor detection circuit and the pressure sensor.

5. The high-temperature steam control circuit for a sterilizer according to claim 1, characterized in that: The water quality detection circuit of the sensor detection module (3) monitors the water quality of the water source in real time. When the water quality is detected to be unsatisfactory, the alarm module (6) issues an alarm signal.

6. The high-temperature steam control circuit for a sterilizer according to claim 1, characterized in that: The operating status information displayed on the LCD screen of the human-machine interaction module (4) includes temperature, pressure, sterilization time countdown and equipment fault information. The buttons of the human-machine interaction module (4) can be used to start and stop the sterilization program and set sterilization parameters.

7. The high-temperature steam control circuit for a sterilizer according to claim 1, characterized in that: The RTC real-time clock of the data processing module (5) is the precise time for each running data record. The built-in file system of the data processing module (5) automatically stores the historical running data of the device. After inserting a USB flash drive, the device can export all historical data to the USB flash drive.

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