Intelligent control early warning system for hydrogenation and charging

Abstract

A kind of hydrogenation and charging intelligent control early warning system, the control early warning system includes: controller, hydrogen detection component and electric quantity detection component are connected on controller, the hydrogen detection component is adapted to hydrogenation column, for determining whether there is hydrogen leakage in hydrogenation process;The electric quantity detection component is adapted to charging pile, for determining whether there is overcurrent phenomenon in charging process;Timer, instruction input and audible and light alarm are connected on controller, the timer is used to transmit clock pulse signal to controller to realize real-time detection to hydrogenation process and charging process;The instruction input is used to transmit control instruction to controller to adjust corresponding detection threshold;The audible and light alarm is used to issue audible and light alarm signal when real-time detection parameter exceeds detection threshold.

Description

Technical fields:

[0001] This utility model relates to an intelligent control and early warning system for hydrogen refueling and charging. Background technology:

[0002] Hydrogen power plants are infrastructures that provide hydrogen refueling services for hydrogen-powered vehicles, railway locomotives, and other transportation vehicles. By injecting hydrogen into hydrogen-powered vehicles and railway locomotives, they generate electricity to power the vehicles and locomotives, achieving zero emissions.

[0003] In traditional hydrogen power plants, the alarm systems for the supercharging module and the hydrogen refueling module operate independently. Generally, hydrogen leakage alarms during refueling and overcurrent protection during charging are displayed separately. Maintenance personnel need to switch between different equipment panels to view these alarms, which can easily lead to information delays, lower safety levels, and prevent maintenance personnel from having real-time access to the overall safety status, resulting in excessively long response times. At the same time, users cannot easily obtain real-time equipment parameters, and the operation process is complex. Utility model content:

[0004] This utility model provides an intelligent control and early warning system for hydrogen refueling and charging. The system features a rational structural design, integrating the control functions of a controller with various electrical components and functional modules. Addressing the flammable and explosive characteristics of hydrogen power plants, it deploys multiple types of high-precision sensors to provide real-time early warning and detection during the hydrogen refueling and charging processes. This covers the entire risk chain, from gas leaks and fire hazards to mechanical failures, preventing information delays and ensuring that maintenance personnel can monitor the overall safety status in real time. Simultaneously, it assists users in conveniently obtaining real-time parameters of the equipment, simplifying actual operation procedures, improving the safety coefficient of the hydrogen power plant, and shortening the overall early warning response time. This allows the hydrogen power plant to remain in a stable state for extended periods during operation, solving the problems existing in the prior art.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A smart control and early warning system for hydrogen refueling and charging, the control and early warning system comprising:

[0007] The controller is equipped with a hydrogen detection component and a power detection component. The hydrogen detection component is adapted to the hydrogen refueling column and is used to determine whether there is a hydrogen leak during the hydrogen refueling process. The power detection component is adapted to the charging pile and is used to determine whether there is an overcurrent phenomenon during the charging process.

[0008] A timer, a command input device, and an audible and visual alarm are connected to the controller. The timer is used to transmit clock pulse signals to the controller to realize real-time detection of the hydrogenation and charging processes. The command input device is used to transmit control commands to the controller to adjust the corresponding detection thresholds. The audible and visual alarm is used to issue audible and visual alarm signals when the real-time detection parameters exceed the detection thresholds.

[0009] The hydrogen detection component includes a hydrogen concentration sensor, a pressure sensor, a temperature sensor, a piezoelectric accelerometer, an infrared flame detector, and a flow sensor. The power detection component includes a temperature and humidity sensor, a liquid level sensor, a smoke sensor, and an overcurrent and overpressure sensor.

[0010] The controller is a PLC controller, model S7-200, which has multiple pins. The PLC controller is connected to the instruction input device through pin Q1.7, to the audible and visual alarm through pins Q1.5 and Q1.3, to the hydrogen detection component through pin Q0.7, to the power detection component through pin Q0.5, and to the timer through pin Q0.2.

[0011] The instruction input device is model TLP290, and has four pins. Pin 1 of the instruction input device is connected to the threshold database through the tenth resistor. A ninth resistor and a fourth capacitor are connected in parallel between pin 1 and pin 2 of the instruction input device. A fifth capacitor and an eighth resistor are connected in parallel between pin 3 and pin 4 of the instruction input device. Pin 3 of the instruction input device is connected to pin Q1.7 of the controller.

[0012] The audible and visual alarm includes a first electromagnetic relay and a second electromagnetic relay connected in parallel. The first electromagnetic relay is connected to pin Q1.5 of the controller, and the second electromagnetic relay is connected to pin Q1.3 of the controller. A red indicator light is connected to the first electromagnetic relay, and a buzzer is connected to the second electromagnetic relay.

[0013] The timer is model DS1302 and has 8 pins. Pins 6 and 7 of the timer are shorted together. A fourth resistor and a fourth capacitor are located between pins 6 and 7. Pin 7 of the timer is connected to pin Q0.2 of the controller.

[0014] This invention employs the aforementioned structure, using a hydrogen detection component adapted to the hydrogen refueling column to accurately determine whether there is a hydrogen leak during the refueling process; using a power detection component adapted to the charging pile to determine whether there is an overcurrent during the charging process; using a timer to transmit clock pulse signals to the controller to achieve real-time detection of the hydrogen refueling and charging processes; using an instruction input device and a threshold database to transmit control instructions to the controller to adjust the corresponding detection thresholds; and using an audible and visual alarm to issue an audible and visual alarm signal when the real-time detection parameters exceed the detection thresholds. It has the advantages of being accurate, convenient, safe, and efficient. Attached image description:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is the electrical schematic diagram of the controller of this utility model.

[0017] Figure 3 This is the electrical schematic diagram of the instruction input device of this utility model.

[0018] Figure 4 This is the electrical schematic diagram of the timer of this utility model.

[0019] Figure 5 This is the electrical schematic diagram of the audible and visual alarm of this utility model. Detailed implementation method:

[0020] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0021] like Figure 1-5 As shown, an intelligent control and early warning system for hydrogen refueling and charging includes:

[0022] The controller is equipped with a hydrogen detection component and a power detection component. The hydrogen detection component is adapted to the hydrogen refueling column and is used to determine whether there is a hydrogen leak during the hydrogen refueling process. The power detection component is adapted to the charging pile and is used to determine whether there is an overcurrent phenomenon during the charging process.

[0023] A timer, a command input device, and an audible and visual alarm are connected to the controller. The timer is used to transmit clock pulse signals to the controller to realize real-time detection of the hydrogenation and charging processes. The command input device is used to transmit control commands to the controller to adjust the corresponding detection thresholds. The audible and visual alarm is used to issue audible and visual alarm signals when the real-time detection parameters exceed the detection thresholds.

[0024] The hydrogen detection component includes a hydrogen concentration sensor, a pressure sensor, a temperature sensor, a piezoelectric accelerometer, an infrared flame detector, and a flow sensor. The power detection component includes a temperature and humidity sensor, a liquid level sensor, a smoke sensor, and an overcurrent and overpressure sensor.

[0025] The controller is a PLC controller, model S7-200, which has multiple pins. The PLC controller is connected to the instruction input device through pin Q1.7, to the audible and visual alarm through pins Q1.5 and Q1.3, to the hydrogen detection component through pin Q0.7, to the power detection component through pin Q0.5, and to the timer through pin Q0.2.

[0026] The instruction input device is model TLP290, and has four pins. Pin 1 of the instruction input device is connected to the threshold database through the tenth resistor. A ninth resistor and a fourth capacitor are connected in parallel between pin 1 and pin 2 of the instruction input device. A fifth capacitor and an eighth resistor are connected in parallel between pin 3 and pin 4 of the instruction input device. Pin 3 of the instruction input device is connected to pin Q1.7 of the controller.

[0027] The audible and visual alarm includes a first electromagnetic relay and a second electromagnetic relay connected in parallel. The first electromagnetic relay is connected to pin Q1.5 of the controller, and the second electromagnetic relay is connected to pin Q1.3 of the controller. A red indicator light is connected to the first electromagnetic relay, and a buzzer is connected to the second electromagnetic relay.

[0028] The timer is model DS1302 and has 8 pins. Pins 6 and 7 of the timer are shorted together. A fourth resistor and a fourth capacitor are located between pins 6 and 7. Pin 7 of the timer is connected to pin Q0.2 of the controller.

[0029] The working principle of the intelligent control and early warning system for hydrogen refueling and charging in this embodiment of the utility model is as follows: Based on the integrated control function of the controller, and in conjunction with various types of electrical components and functional components, multiple types of high-precision sensors are deployed to conduct real-time early warning detection of the hydrogen refueling and charging processes, taking into account the flammable and explosive characteristics of hydrogen power plants. This covers the entire chain of risks from gas leaks and fire hazards to mechanical failures, avoiding information lag and ensuring that operation and maintenance personnel can keep abreast of the overall safety status. At the same time, it helps users to easily obtain the real-time parameters of the equipment, simplifies the actual operation process, improves the safety application coefficient of the hydrogen power plant, and shortens the overall early warning response time, thereby enabling the hydrogen power plant to remain in a stable state for a long time during operation.

[0030] In traditional hydrogen power plants, the alarm systems of the supercharging module and the hydrogen refueling module operate independently, requiring maintenance personnel to switch between different equipment panels to view them. This can easily lead to the escalation of accidents due to information lag. However, in this application, multiple types of alarm parameters from the two functional modules can be integrated and displayed on the same screen in a partitioned manner, enabling maintenance personnel to keep abreast of the overall safety status in real time.

[0031] For users, in the traditional model, they need to obtain charging or hydrogen refueling parameters through device panel buttons or by consulting staff, which is a cumbersome process with limited information display. In this application, users can use the WeChat scanning function to view the device's rated parameters and real-time data on their mobile phones. This allows them to check the remaining hydrogen amount and estimated refueling time during hydrogen refueling, and avoid overcharging during charging. It also supports functions such as vertical record query and payment, connecting offline devices with online services.

[0032] In the overall solution, the control and early warning system includes: a controller, on which a hydrogen detection component and a power detection component are connected. The hydrogen detection component is adapted to the hydrogen refueling column and is used to determine whether there is a hydrogen leak during the hydrogen refueling process; the power detection component is adapted to the charging pile and is used to determine whether there is an overcurrent phenomenon during the charging process; a timer, a command input device, and an audible and visual alarm are connected to the controller. The timer is used to transmit clock pulse signals to the controller to realize real-time detection of the hydrogen refueling and charging processes; the command input device is used to transmit control commands to the controller to adjust the corresponding detection thresholds; the audible and visual alarm is used to issue audible and visual alarm signals when the real-time detection parameters exceed the detection thresholds.

[0033] The core component is a controller, specifically a PLC controller, model S7-200. The PLC controller has multiple pins: pin Q1.7 connects to the instruction input device; pins Q1.5 and Q1.3 connect to the audible and visual alarm; pin Q0.7 connects to the hydrogen detection component; pin Q0.5 connects to the power detection component; and pin Q0.2 connects to the timer. This constitutes the overall hardware circuit, enabling real-time and accurate detection and early warning of the hydrogen refueling and charging processes.

[0034] Because the data transmission protocols between the various modules of a traditional hydrogen power plant and the cloud platform are not uniform, operational data may be delayed or missing. However, the control and early warning system in this application can achieve two-way communication with the cloud, and upload data such as hydrogen refueling, charging, and alarm status in real time. Maintenance personnel can remotely monitor all equipment in the plant through the cloud platform.

[0035] Specifically, the hydrogen detection component includes a hydrogen concentration sensor, a pressure sensor, a temperature sensor, a piezoelectric accelerometer, an infrared flame detector, and a flow sensor. It can deploy laser-type hydrogen concentration sensors at hydrogen storage containers and pipeline interfaces to trigger alarms; install piezoresistive pressure sensors in liquid hydrogen storage tanks and hydrogen refueling machine pipelines to trigger alarms when the pressure exceeds a set range; deploy temperature sensors in hydrogen refueling nozzles and compressor cooling systems to trigger alarms when temperatures are abnormal; install infrared flame detectors in the hydrogen compressor room and hydrogen storage area to trigger audible and visual alarms when a flame is detected; install piezoelectric accelerometers on the equipment casing to trigger alarms when impacted; install temperature and pressure sensors in cooling water pipelines to detect cooling effects; and install ultrasonic flow meters in hydrogen refueling pipelines to trigger alarms when flow rates are abnormal.

[0036] The power detection component includes a temperature and humidity sensor, a liquid level sensor, a smoke sensor, and an overcurrent and overvoltage sensor; it can install a temperature and humidity sensor on the outside of the equipment to trigger an alarm when the ambient temperature exceeds the limit; it can set temperature sensors at the drain outlet and the gas supply system to monitor the drain temperature or the gas supply temperature, and can also be configured with overcurrent / overvoltage protection, short circuit protection, overtemperature protection, leakage current monitoring, and insulation monitoring.

[0037] Multi-dimensional sensor monitoring and centralized display can shorten alarm response time and reduce accident risk; maintenance personnel can view all alarms at the station without switching systems, reducing inspection workload; users can obtain parameters themselves, improving service experience.

[0038] It should be noted that the controller in this application uses an industrial-grade PLC, which collects data from various sensors through protocols such as Modbus RTU / TCP and CAN bus. In conjunction with a threshold database, it can support remote updates and custom settings.

[0039] In summary, the intelligent control and early warning system for hydrogen refueling and charging in this embodiment of the present invention, based on the integrated control function of the controller and in conjunction with various types of electrical components and functional modules, deploys multiple types of high-precision sensors to conduct real-time early warning detection of the hydrogen refueling and charging processes, taking into account the flammable and explosive characteristics of hydrogen power plants. This covers the entire chain of risks from gas leaks and fire hazards to mechanical failures, avoiding information lag and ensuring that maintenance personnel can grasp the overall safety status in real time. Simultaneously, it assists users in conveniently obtaining real-time parameters of the equipment, simplifying actual operation procedures, improving the safety application coefficient of the hydrogen power plant, and shortening the overall early warning response time, thereby enabling the hydrogen power plant to remain in a stable state for extended periods during operation.

[0040] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.

[0041] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. An intelligent control and early warning system for hydrogen refueling and charging, characterized in that, The control and early warning system includes: The controller is equipped with a hydrogen detection component and a power detection component. The hydrogen detection component is adapted to the hydrogen refueling column and is used to determine whether there is a hydrogen leak during the hydrogen refueling process. The power detection component is adapted to the charging pile and is used to determine whether there is an overcurrent phenomenon during the charging process. A timer, a command input device, and an audible and visual alarm are connected to the controller. The timer is used to transmit clock pulse signals to the controller to realize real-time detection of the hydrogenation and charging processes. The command input device is used to transmit control commands to the controller to adjust the corresponding detection thresholds. The audible and visual alarm is used to issue audible and visual alarm signals when the real-time detection parameters exceed the detection thresholds.

2. The intelligent control and early warning system for hydrogen refueling and charging according to claim 1, characterized in that: The hydrogen detection component includes a hydrogen concentration sensor, a pressure sensor, a temperature sensor, a piezoelectric accelerometer, an infrared flame detector, and a flow sensor. The power detection component includes a temperature and humidity sensor, a liquid level sensor, a smoke sensor, and an overcurrent and overpressure sensor.

3. The intelligent control and early warning system for hydrogen refueling and charging according to claim 1, characterized in that: The controller is a PLC controller, model S7-200, which has multiple pins. The PLC controller is connected to the instruction input device through pin Q1.7, to the audible and visual alarm through pins Q1.5 and Q1.3, to the hydrogen detection component through pin Q0.7, to the power detection component through pin Q0.5, and to the timer through pin Q0.

2.

4. The intelligent control and early warning system for hydrogen refueling and charging according to claim 3, characterized in that: The instruction input device is model TLP290, and has four pins. Pin 1 of the instruction input device is connected to the threshold database through the tenth resistor. A ninth resistor and a fourth capacitor are connected in parallel between pin 1 and pin 2 of the instruction input device. A fifth capacitor and an eighth resistor are connected in parallel between pin 3 and pin 4 of the instruction input device. Pin 3 of the instruction input device is connected to pin Q1.7 of the controller.

5. The intelligent control and early warning system for hydrogen refueling and charging according to claim 3, characterized in that: The audible and visual alarm includes a first electromagnetic relay and a second electromagnetic relay connected in parallel. The first electromagnetic relay is connected to pin Q1.5 of the controller, and the second electromagnetic relay is connected to pin Q1.3 of the controller. A red indicator light is connected to the first electromagnetic relay, and a buzzer is connected to the second electromagnetic relay.

6. The intelligent control and early warning system for hydrogen refueling and charging according to claim 3, characterized in that: The timer is model DS1302 and has 8 pins. Pins 6 and 7 of the timer are shorted together. A fourth resistor and a fourth capacitor are located between pins 6 and 7. Pin 7 of the timer is connected to pin Q0.2 of the controller.

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