Explosion-proof automatic oiling machine control system

Abstract

The invention relates to the technical field of gas station automatic control and safety protection, in particular to an explosion-proof automatic refueling machine control system which comprises a central control unit, an explosion-proof sensor module, an explosion-proof actuator module, a man-machine interaction interface and a communication module, and has comprehensive fault diagnosis and fault-tolerant processing functions, payment modes and industrial plant internal refueling point application. The use safety can be guaranteed through multiple anti-explosion design, the sensor and the anti-explosion actuator module are packaged through an anti-explosion shell made of a high-strength metal material, the anti-explosion sensor module can monitor parameters such as the liquid level of an oil tank, the fuel oil temperature, the fuel oil pressure and the combustible gas concentration in real time, and once the parameters exceed the standard, the anti-explosion sensor module can be started; the system can automatically stop refueling operation, start ventilation equipment, close related valves and trigger sound-light alarm and remote alarm, and safety risks are effectively prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic control and safety protection of gas stations, in particular to an explosion-proof automatic fuel dispenser control system. Background Art

[0002] Traditional refueling equipment and management models face numerous challenges in the daily operations of gas stations. From a safety perspective, fuel is a flammable and explosive hazardous material. Failure to accurately monitor key parameters such as tank level, fuel temperature, pressure, and combustible gas concentration in real time during refueling can easily lead to safety accidents such as fires and explosions. Furthermore, existing equipment often lacks comprehensive explosion-proofing measures, making it difficult to provide comprehensive safety protection.

[0003] At the operational level, traditional refueling methods rely heavily on manual control, requiring manual input of refueling data and manual start and stop of refueling operations. This is not only inefficient, but can also easily lead to inaccurate refueling amounts due to human operational errors, or even failure to stop in time after the tank is full, causing problems such as fuel overflow.

[0004] In terms of control and management, traditional control units lack effective protection mechanisms. During long-term operation, abnormalities in the refueling process may occur due to hardware failures, software errors, etc., and timely alarms and remote intervention are often not possible after an abnormality occurs. It is difficult to achieve accurate monitoring and efficient management of the refueling process, which has an adverse impact on the safe operation and economic benefits of gas stations. Summary of the Invention

[0005] The object of the present invention is to provide an explosion-proof automatic fuel dispenser control system to solve the problems raised in the above background technology.

[0006] The technical solution of the present invention is: an explosion-proof automatic fuel dispenser control system, including a central control unit, an explosion-proof sensor module, an explosion-proof actuator module, a human-machine interface and a communication module, comprehensive fault diagnosis and fault-tolerant processing functions, payment methods, and application at fueling points within industrial plants, characterized by:

[0007] The central control unit uses a high-performance, high-reliability microprocessor as the core of the entire system. It is responsible for receiving signals from various sensors, processing and analyzing data, and sending control instructions to the actuators according to preset programs and algorithms. It also has multiple protection mechanisms such as hardware watchdog and software redundancy.

[0008] The explosion-proof sensor module includes a liquid level sensor, a temperature sensor, a pressure sensor, and a combustible gas sensor. All sensors are explosion-proof. The liquid level sensor uses ultrasonic liquid level measurement technology, the temperature sensor uses a thermocouple or thermistor as a sensitive element, the pressure sensor uses the piezoresistive effect, and the combustible gas sensor uses a catalytic combustion or semiconductor principle.

[0009] The explosion-proof actuator module is composed of a refueling pump motor controller and a valve driver, adopts an explosion-proof structure, is connected with the sensor module and the central control unit through an explosion-proof cable, and the refueling pump motor controller adopts frequency conversion speed regulation technology.

[0010] The man-machine interaction interface is an explosion-proof touch screen installed on the operation panel of the refueling machine, is used for inputting refueling parameters and displaying refueling data by a user, and provides a fault alarm prompt and an operation guide function.

[0011] The communication module supports RS485, Ethernet, Wi-Fi, Bluetooth, 4G / 5G wireless communication modes, and realizes data transmission with a refueling station management system and a remote monitoring center.

[0012] Preferably, the sensor and the explosion-proof actuator module are packaged with an explosion-proof shell, and the explosion-proof shell is made of high-strength metal material.

[0013] The electrical clearance and the creepage distance of the electrical equipment are strictly controlled.

[0014] Heat dissipation measures are taken for components that may generate high temperature; and a perfect grounding protection device is provided to reliably ground the metal shell of all electrical equipment.

[0015] Preferably, the comprehensive fault diagnosis and fault tolerance processing function automatically stops refueling operation and alarms when detecting equipment failure or abnormal condition.

[0016] The refueling operation process is strictly managed in terms of authority; a multiple safety protection mechanism of upper limit of refueling amount and refueling speed limitation is set.

[0017] Data encryption technology is adopted to encrypt transmission data.

[0018] Preferably, the system has an automatic refueling function, after inputting a refueling amount or a refueling volume through the man-machine interaction interface, the system automatically starts the refueling pump, refuels according to the set parameters, monitors the refueling volume and the amount in real time, and automatically stops the refueling pump and closes the oil outlet valve when reaching the set value or the upper limit.

[0019] Preferably, the system has an automatic metering function, a high-precision flowmeter is installed in the refueling pipeline to realize accurate metering of the refueling volume. The flowmeter transmits a flow signal to the central control unit, which calculates the refueling volume and mass according to the flow signal and the fuel density, and simultaneously uses an advanced metering algorithm to automatically compensate and correct errors generated by the flowmeter.

[0020] Preferably, the explosion-proof sensor module monitors the oil tank level, fuel temperature, pressure, combustible gas concentration parameters in real time and transmits them to the central control unit, the central control unit analyzes the data, and when the parameters exceed the preset safety threshold, triggers the sound and light alarm device and remote alarm function, and automatically stops the refueling operation, starts the ventilation equipment, and closes the related valves.

[0021] Preferably, the payment method supports cash payment, bank card payment, WeChat payment, and Alipay payment, and automatically calculates the refueling amount after refueling, settles according to the user's selected payment method, and automatically prints the refueling invoice and uploads the payment record to the gas station management system after successful payment. Archives.

[0022] Preferably, when the industrial plant internal refueling point is applied, the communication module uses a 4G communication module, the central control unit increases a backup power module, and the explosion-proof sensor module increases a smoke sensor and a flame sensor for monitoring whether a fire occurs around the refueling point. When an abnormal condition is detected, start the fire fighting equipment and send a fire alarm signal.

[0023] The present application provides an explosion-proof automatic refueling machine control system by improvement, compared with the prior art, has the following improvements and advantages:

[0024] Firstly, the present application ensures safety through multiple explosion-proof design, the sensor and the explosion-proof actuator module are packaged with a high-strength metal material explosion-proof shell, the explosion-proof sensor module can monitor the oil tank level, fuel temperature, pressure, combustible gas concentration and other parameters in real time, once the parameters exceed the standard, the system will automatically stop the refueling operation, start the ventilation equipment, close the related valves, and trigger the sound and light alarm and remote alarm, effectively prevent safety risks.

[0025] Secondly, the present application inputs the refueling data through the man-machine interface, refuels according to the set data, and automatically stops refueling when the set data or the tank is full.

[0026] Thirdly, the present application cooperates between the multiple protection mechanisms of the central control unit with hardware watchdog, software redundancy, etc., to prevent errors during refueling, and automatically alarms in case of abnormality or emergency, while realizing remote data transmission. BRIEF DESCRIPTION OF DRAWINGS

[0027] The present application will be further explained in conjunction with the drawings and examples:

[0028] Figure 1 is a system safety monitoring and emergency handling flowchart;

[0029] Figure 2 is an automatic refueling operation flowchart;

[0030] Figure 3 is a fault diagnosis and fault-tolerant processing flow chart. DETAILED DESCRIPTION

[0031] The present application will be described in detail below, and the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0032] The present application provides an explosion-proof automatic oil dispenser control system by improvement, and the technical solutions of the present application are:

[0033] As shown in Figure 1 - Figure 3 The explosion-proof automatic oil dispenser control system comprises a central control unit, an explosion-proof sensor module, an explosion-proof actuator module, a man-machine interface and a communication module, has comprehensive fault diagnosis and fault-tolerant processing functions, payment methods, and is applied to an oil filling point in an industrial plant. The explosion-proof automatic oil dispenser control system is characterized in that:

[0034] The central control unit adopts a high-performance and high-reliability microprocessor as the core of the whole system, is responsible for receiving signals from various sensors, performing data processing and analysis, and sending control instructions to the actuator according to a preset program and algorithm, and has a multiple protection mechanism of hardware watchdog and software redundancy;

[0035] The explosion-proof sensor module comprises a liquid level sensor, a temperature sensor, a pressure sensor and a combustible gas sensor. All the sensors are designed to be explosion-proof. The liquid level sensor adopts ultrasonic liquid level measurement technology, the temperature sensor adopts a thermocouple or a thermistor as a sensitive element, the pressure sensor utilizes a piezoresistive effect, and the combustible gas sensor adopts a catalytic combustion type or a semiconductor type principle;

[0036] The explosion-proof actuator module is composed of an oil pump motor controller and a valve driver, adopts an explosion-proof structure, is connected to the sensor module and the central control unit through an explosion-proof cable, and the oil pump motor controller adopts frequency conversion speed regulation technology;

[0037] The man-machine interface is an explosion-proof touch screen installed on the operation panel of the oil dispenser, is used for user input of oil filling parameters and display of oil filling data, and provides functions of fault alarm prompt and operation guide;

[0038] The communication module supports RS485, Ethernet, Wi-Fi, Bluetooth, 4G / 5G wireless communication modes, and realizes data transmission with a gas station management system and a remote monitoring center.

[0039] Further, the sensor and the explosion-proof actuator module are both packaged with explosion-proof housing, which is made of high-strength metal material.

[0040] Strictly control the electrical clearance and creepage distance of electrical equipment;

[0041] Take heat dissipation measures for components that may generate high temperature; equip perfect grounding protection device to reliably ground the metal shell of all electrical equipment; through the measures of explosion-proof housing packaging, control of electrical clearance and creepage distance, heat dissipation and grounding protection, the explosion-proof performance of the equipment is further strengthened, and the possibility of electrical failure causing danger is reduced.

[0042] Further, comprehensive fault diagnosis and fault-tolerant processing functions, automatically stop refueling operation and alarm when detecting equipment failure or abnormal condition;

[0043] Strictly manage the refueling operation process; set multiple safety protection mechanisms of upper limit of refueling amount and refueling speed limit;

[0044] Use data encryption technology to encrypt the transmitted data; through comprehensive fault diagnosis, fault-tolerant processing and multiple safety protection mechanisms, the device can respond to equipment abnormalities in time, strictly control operation permissions, ensure data transmission safety, and improve the overall safety and reliability of the system.

[0045] Further, the system has an automatic refueling function, which automatically starts the refueling pump after inputting the refueling amount or refueling volume through the human-machine interface, refuels according to the set parameters, monitors the refueling volume and amount in real time, and automatically stops the refueling pump and closes the oil outlet valve when reaching the set value or upper limit. Through the automatic refueling function, the refueling operation is automatically completed according to the set parameters and stopped accurately, reducing manual operation steps and improving the convenience and efficiency of refueling.

[0046] Further, the system has an automatic metering function, which installs a high-precision flowmeter in the refueling pipeline to realize accurate metering of the refueling volume. The flowmeter transmits the flow signal to the central control unit, which calculates the refueling volume and mass according to the flow signal and fuel density, and uses advanced metering algorithms to automatically compensate and correct the errors of the flowmeter. Through the automatic metering function with high-precision flowmeter and advanced algorithms, accurate metering and error correction of the refueling volume are realized, ensuring the accuracy of the metering result.

[0047] Furthermore, the explosion-proof sensor module monitors the oil tank level, fuel temperature, pressure, and combustible gas concentration parameters in real time and transmits them to the central control unit. The central control unit analyzes and judges the data. When the parameters exceed the preset safety threshold, the sound and light alarm device and remote alarm function are triggered, and the refueling operation is automatically stopped, the ventilation equipment is started, and the relevant valves are closed. By monitoring key parameters in real time and linking emergency measures through the explosion-proof sensor module, it can quickly respond to parameter exceeding the standard and effectively prevent the occurrence of safety accidents.

[0048] Furthermore, the payment method supports cash payment, bank card payment, WeChat payment, and Alipay payment. The refueling amount is automatically calculated after refueling is completed, and the settlement is made according to the payment method selected by the user. After the payment is successful, the refueling invoice is automatically printed and the payment record is uploaded to the gas station management system for archiving. Through the automatic settlement and record upload functions, various payment methods meet the payment needs of different users, and at the same time facilitate the unified management of transaction data by the gas station management system.

[0049] Furthermore, when used at refueling points within industrial plants, the communication module uses a 4G communication module, the central control unit adds a backup power module, and the explosion-proof sensor module adds a smoke sensor and a flame sensor to monitor whether there is a fire around the refueling point. When an abnormal situation is detected, the fire-fighting equipment is activated and a fire alarm signal is issued. The adaptive design for industrial plant applications ensures communication stability, power supply continuity and fire monitoring capabilities.

[0050] The above description is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The explosion-proof automatic fuel dispenser control system includes a central control unit, explosion-proof sensor module, explosion-proof actuator module, human-machine interface and communication module, comprehensive fault diagnosis and fault-tolerant processing functions, payment methods, and is applicable to fueling points within industrial plants. Features: The central control unit uses a high-performance, high-reliability microprocessor as the core of the entire system. It is responsible for receiving signals from various sensors, processing and analyzing data, and sending control instructions to the actuators according to preset programs and algorithms. It also has multiple protection mechanisms such as hardware watchdog and software redundancy. The explosion-proof sensor module includes a liquid level sensor, a temperature sensor, a pressure sensor, and a combustible gas sensor. All sensors are explosion-proof. The liquid level sensor uses ultrasonic liquid level measurement technology, the temperature sensor uses a thermocouple or thermistor as a sensitive element, the pressure sensor uses the piezoresistive effect, and the combustible gas sensor uses a catalytic combustion or semiconductor principle. The explosion-proof actuator module consists of a fuel pump motor controller and a valve driver, adopts an explosion-proof structure, and is connected to the sensor module and the central control unit via explosion-proof cables. The fuel pump motor controller adopts variable frequency speed regulation technology; The human-machine interaction interface is an explosion-proof touch screen installed on the operation panel of the fuel dispenser, which is used for users to input fueling parameters and display fueling data, and provides fault alarm prompts and operation guidance functions; The communication module supports RS485, Ethernet, Wi-Fi, Bluetooth, and 4G / 5G wireless communication modes to achieve data transmission with the gas station management system and remote monitoring center.

2. The explosion-proof automatic fuel dispenser control system according to claim 1 is characterized in that: The sensor and explosion-proof actuator module are both encapsulated in an explosion-proof housing made of high-strength metal material; Strictly control the electrical clearance and creepage distance of electrical equipment; Take heat dissipation measures for components that may generate high temperatures; equip with complete grounding protection devices and reliably ground the metal casings of all electrical equipment.

3. The explosion-proof automatic fuel dispenser control system according to claim 1 is characterized in that: The comprehensive fault diagnosis and fault-tolerant processing function automatically stops the refueling operation and issues an alarm when a fault or abnormality is detected. Implement strict authority management for refueling operation procedures; set up multiple safety protection mechanisms such as upper limit of refueling volume and refueling speed limit; Data encryption technology is used to encrypt the transmitted data.

4. The explosion-proof automatic fuel dispenser control system according to claim 1 is characterized in that: The system has an automatic refueling function. After the refueling amount or amount is input through the human-computer interaction interface, the system automatically starts the refueling pump, refuels according to the set parameters, monitors the refueling amount and amount in real time, and automatically stops the refueling pump and closes the oil outlet valve when the set value or upper limit is reached.

5. The explosion-proof automatic fuel dispenser control system according to claim 1 is characterized in that: The system features automatic metering, using a high-precision flow meter installed in the refueling line to precisely measure refueling volume. The flow meter transmits a flow signal to the central control unit, which calculates the refueling volume and mass based on the flow signal and fuel density. Advanced metering algorithms automatically compensate for flow meter errors.

6. The explosion-proof automatic fuel dispenser control system according to claim 1 is characterized in that: The explosion-proof sensor module monitors the oil tank liquid level, fuel temperature, pressure, and combustible gas concentration parameters in real time and transmits them to the central control unit. The central control unit analyzes and judges the data. When the parameters exceed the preset safety threshold, the sound and light alarm device and the remote alarm function are triggered, and the refueling operation is automatically stopped, the ventilation equipment is started, and the relevant valves are closed.

7. The explosion-proof automatic fuel dispenser control system according to claim 1 is characterized in that: The payment method supports cash payment, bank card payment, WeChat payment, and Alipay payment. The refueling amount is automatically calculated after refueling is completed, and the settlement is made according to the payment method selected by the user. After the payment is successful, the refueling invoice is automatically printed and the payment record is uploaded to the gas station management system for archiving.

8. The explosion-proof automatic fuel dispenser control system according to claim 1, characterized in that: When used at refueling points within industrial plants, the communication module uses a 4G communication module, the central control unit adds a backup power module, and the explosion-proof sensor module adds a smoke sensor and a flame sensor to monitor whether a fire occurs around the refueling point. When an abnormal situation is detected, the fire-fighting equipment is activated and a fire alarm signal is issued.

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