Digital intelligent fire-fighting water supply inspection control system based on plc technology

Abstract

The utility model relates to a digital intelligent fire-fighting water supply inspection control system based on plc (programmable logic controller) technology, which comprises a main circuit and a control circuit, and is characterized in that the main circuit comprises a power circuit and a power mechanism, and the control circuit consists of a PLC (programmable logic controller) unit and a frequency converter unit. According to the utility model, intelligent inspection and control of fire-fighting water supply are realized, and the automation level of the water supply system is obviously improved. Through programming of the PLC, an inspection plan can be preset, the operation states of the pump body motor and the valve actuator can be automatically detected, potential problems can be found and processed in time, and therefore stable operation of the water supply system is guaranteed. The intelligent inspection mode not only reduces the frequency and intensity of manual inspection, but also improves the accuracy and efficiency of inspection, improves the automation level, safety and reliability of the water supply system, reduces the maintenance cost, and enhances the flexibility and expandability.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting equipment control, in particular to a digital intelligent fire-fighting water supply inspection control system based on PLC technology. Background Art

[0002] With the rapid advancement of urbanization, urban fire safety has received increasing attention. As an important infrastructure to ensure urban fire safety, the stability and reliability of fire water supply equipment are directly related to the efficiency and effectiveness of fire fighting. However, the traditional fire water supply inspection and control system has many shortcomings and can no longer meet the high standards of fire safety in modern smart cities.

[0003] First of all, the traditional fire water supply inspection system mostly adopts manual inspection, which is not only inefficient, but also difficult to ensure the comprehensiveness and accuracy of the inspection. Manual inspection is easily affected by human factors, such as the skill level and work attitude of the inspectors, which leads to deviations in the inspection results.

[0004] Secondly, the traditional inspection system lacks real-time performance. When a fire occurs, it is often impossible to quickly and accurately start the fire water supply equipment, thus delaying the best time to put out the fire. In addition, the traditional inspection system often lags behind in discovering and handling faults, and is unable to timely warn and eliminate potential safety hazards.

[0005] Thirdly, with the continuous advancement of firefighting technology and the continuous updating of firefighting equipment, the traditional inspection system can no longer adapt to the requirements of new equipment and technology. For example, new fire water supply equipment often has more complex control systems and higher performance requirements, and traditional inspection systems are difficult to effectively monitor and manage them.

[0006] Therefore, developing a new type of fire water supply inspection control system to realize the automation, intelligent inspection and real-time monitoring of fire water supply equipment and improve the accuracy and efficiency of inspection has become an urgent need for the current smart city construction. It is in this context that the PLC-based digital intelligent fire water supply inspection control system came into being. With its strong versatility, high reliability, easy upgrade and maintenance, it provides a new solution for the inspection and control of modern fire water supply equipment.

[0007] In summary, the development and application of the PLC-based digital intelligent fire water supply inspection control system is of great significance to improving the level of urban fire safety and protecting people's lives and property. By adopting advanced control technology and intelligent management methods, comprehensive, real-time and efficient monitoring and management of fire water supply equipment can be achieved, which will provide strong protection for the fire safety of smart cities. Utility Model Content

[0008] In order to solve the problems of the prior art, the utility model provides a digital intelligent fire water supply inspection control system based on PLC technology.

[0009] In order to solve the above technical problems, the utility model is realized by the following technical solutions: a digital intelligent fire water supply inspection control system based on PLC technology, including a main circuit and a control circuit, the main circuit includes a power supply line and a power mechanism, the control circuit is composed of a PLC controller unit and a frequency converter unit, and the PLC controller unit includes a PLC controller, an output module and an input module;

[0010] The power mechanism includes a first pump body motor, a second pump body motor, a third pump body motor, a fourth pump body motor, a PLC controller power supply, a fire water internal circulation valve actuator and a sprinkler water internal circulation valve actuator, which are connected in parallel with each other;

[0011] The power supply circuit includes a first power supply line and a second power supply line. The output ends of the first power supply line and the second power supply line are connected in parallel as a main line. One end of the main line is electrically connected to a frequency converter through a circuit breaker. The main circuit is electrically connected to a first pump motor, a second pump motor, a third pump motor, and a fourth pump motor through a circuit breaker, an AC contactor, and a thermal relay. One end of the main circuit is electrically connected to a PLC controller power supply through a circuit breaker. One end of the main circuit is electrically connected to a fire water internal circulation valve actuator and a sprinkler water internal circulation valve actuator through a circuit breaker, an intermediate relay, and an electric regulating valve controller. The output end of the frequency converter is electrically connected to the first pump motor, the second pump motor, the third pump motor, and the fourth pump motor through an AC contactor.

[0012] Preferably, the input end of the PLC controller is electrically connected to the input module, and the output end of the PLC controller is electrically connected to the output module.

[0013] Preferably, the input module includes a first pump pneumatic button, a second pump start button, a third pump start button, and a fourth pump start button, which are used to control the operation of the first pump body motor, the second pump body motor, the third pump body motor, and the fourth pump body motor through the AC contactor respectively;

[0014] Preferably, the input module also includes a first pump stop button, a second pump stop button, a third pump stop button, and a fourth pump stop button, which are used to control the first pump body motor, the second pump body motor, the third pump body motor and the fourth pump body motor to cut off power and stop operation respectively through AC contactors.

[0015] Preferably, the input module also includes valve start button No. 1, valve start button No. 2, valve stop button No. 1, and valve stop button No. 2. The valve start button No. 1 and valve start button No. 2 respectively control the fire water internal circulation valve actuator and the sprinkler water internal circulation valve actuator to be powered on and operated through an intermediate relay. The valve stop button No. 1 and valve stop button No. 2 respectively control the fire water internal circulation valve actuator and the sprinkler water internal circulation valve actuator to be powered off and stopped through an intermediate relay.

[0016] Preferably, the output module includes pump No. 1 operation indicator light, pump No. 2 operation indicator light, pump No. 3 operation indicator light, and pump No. 4 operation indicator light, which are used to respectively indicate that the first pump body motor, the second pump body motor, the third pump body motor, and the fourth pump body motor are in operation. The output module also includes valve No. 1 operation indicator light and valve No. 2 operation indicator light, which are used to respectively indicate that the fire water internal circulation valve actuator and the sprinkler water internal circulation valve actuator are in operation.

[0017] Preferably, the output module also includes multiple intermediate relays and multiple AC contactors, which are used to control the operation of the first pump motor, the second pump motor, the third pump motor, the fourth pump motor, the fire water internal circulation valve actuator and the sprinkler water internal circulation valve actuator.

[0018] The beneficial effects of the utility model are:

[0019] 1. The utility model realizes the intelligent inspection and control of fire water supply, and significantly improves the automation level of the water supply system. Through the programming of the PLC controller, the inspection plan can be preset, the operating status of the pump motor and valve actuator can be automatically detected, and potential problems can be discovered and handled in time, thereby ensuring the stable operation of the water supply system. This intelligent inspection method not only reduces the frequency and intensity of manual inspections, but also improves the accuracy and efficiency of inspections, and has significant beneficial effects in improving the automation level, safety and reliability of the water supply system, reducing maintenance costs, and enhancing flexibility and scalability.

[0020] 2. Through the precise control of the PLC controller, accurate adjustment of the pump motor and valve actuator can be achieved to ensure stable and sufficient water supply. In emergency situations such as fire, the system can respond quickly and adjust the water supply strategy to provide strong support for fire fighting. In addition, the intelligent inspection function of the system can effectively prevent failures and accidents in the water supply system. Traditional fire water supply systems require regular manual inspections and maintenance, which not only consumes a lot of manpower and material resources, but also may lead to omissions and delays in maintenance work. The digital intelligent fire water supply inspection and control system of the present invention reduces the need for manual intervention and reduces the intensity and complexity of maintenance work through automated inspections and intelligent control, thereby effectively reducing maintenance costs and further improving the safety of fire water supply;

[0021] 3. The PLC controller has good programming and expansion capabilities, and can be customized and upgraded according to actual needs. At the same time, the system can also be linked with other fire-fighting equipment and systems to achieve more extensive intelligent control and information sharing. This flexibility and scalability enables the system to adapt to fire water supply systems of different scales and needs, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a primary system diagram of electrical control of the utility model.

[0023] Figure 2 It is the principle diagram of the electrical secondary circuit of the utility model.

[0024] Figure 3 It is a connection principle diagram of a PLC controller of the utility model.

[0025] Figure 4 It is a schematic diagram of a dual-circuit power supply cabinet of the utility model.

[0026] Figure 5 It is a schematic diagram of the inspection control cabinet of the utility model.

[0027] Figure 6 It is an overall fire inspection operation procedure diagram of the utility model. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figure 1-6 The digital intelligent fire water supply inspection control system based on PLC technology is shown. The system combines the main circuit and the control circuit, and realizes the intelligent inspection and control of fire water supply through the PLC controller. The specific implementation of the present invention will be described in detail below.

[0030] First, the main circuit part includes a power supply circuit and a power mechanism. The power supply circuit includes a first power supply circuit and a second power supply circuit, and the output ends of these two circuits are connected in parallel to form a main circuit. One end of the main circuit is connected to the frequency converter through a circuit breaker, and the other end is connected to four pump motors, namely the first pump motor, the second pump motor, the third pump motor and the fourth pump motor, through a circuit breaker, an AC contactor and a thermal relay. In addition, the main circuit is also electrically connected to the fire water internal circulation valve actuator and the sprinkler water internal circulation valve actuator through a circuit breaker, an intermediate relay and an electric regulating valve controller. The output end of the frequency converter is electrically connected to the four pump motors through an AC contactor.

[0031] In the control circuit part, the PLC controller unit is the core component, which includes the PLC controller, output module and input module. The input end of the PLC controller is electrically connected to the input module to receive signals from the input module; the output end is electrically connected to the output module to send control instructions.

[0032] The design of the input module is very critical. It contains multiple control buttons, such as the first pump pneumatic button, the second pump start button, the third pump start button, and the fourth pump start button. These buttons are used to control the corresponding pump motor to run through the AC contactor. At the same time, there are corresponding stop buttons, such as the first pump stop button and the second pump stop button, which are used to control the power off and stop of the pump motor. In addition, the input module also includes the No. 1 valve start button, the No. 2 valve start button, the No. 1 valve stop button, and the No. 2 valve stop button. These buttons control the power on and power off of the fire water internal circulation valve actuator and the sprinkler water internal circulation valve actuator through the intermediate relay.

[0033] The output module includes multiple indicator lights and relays, such as the No. 1 pump operation indicator light and the No. 2 pump operation indicator light, which are used to indicate the operating status of the pump motor; the No. 1 valve operation indicator light and the No. 2 valve operation indicator light are used to indicate the operating status of the valve actuator. In addition, the output module also includes multiple intermediate relays and AC contactors to control the operation of the pump motor and valve actuator.

[0034] In actual operation, automatic inspection and intelligent control of fire water supply can be realized through programming of PLC controller. For example, inspection plan can be set to automatically start and stop the pump motor according to the plan to check its operating status; at the same time, the opening of the valve actuator can be automatically adjusted according to the demand for fire water, realizing intelligent regulation of fire water supply.

[0035] In general, the digital intelligent fire water supply inspection and control system based on PLC technology provided by the present invention realizes the intelligent inspection and control of fire water supply through the programming of PLC controller and the design of input and output modules, improves the safety and reliability of fire water supply, reduces maintenance costs, and has important practical application value.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A digital intelligent fire water supply inspection control system based on PLC technology, including a main circuit and a control circuit, Features: The main circuit includes a power supply line and a power mechanism, the control circuit is composed of a PLC controller unit and a frequency converter unit, and the PLC controller unit includes a PLC controller, an output module and an input module; The power mechanism includes a first pump body motor, a second pump body motor, a third pump body motor, a fourth pump body motor, a PLC controller power supply, a fire water internal circulation valve actuator and a sprinkler water internal circulation valve actuator, which are connected in parallel with each other; The power supply circuit includes a first power supply circuit and a second power supply circuit. The output ends of the first power supply circuit and the second power supply circuit are connected in parallel as a main circuit. One end of the main circuit is electrically connected to a frequency converter through a circuit breaker. The main circuit is electrically connected to a first pump motor, a second pump motor, a third pump motor, and a fourth pump motor through a circuit breaker, an AC contactor, and a thermal relay, respectively. One end of the main circuit is electrically connected to a PLC controller power supply through a circuit breaker. One end of the main circuit is electrically connected to a fire water internal circulation valve actuator and a sprinkler water internal circulation valve actuator through a circuit breaker, an intermediate relay, and an electric regulating valve controller. The output end of the frequency converter is electrically connected to the first pump motor, the second pump motor, the third pump motor, and the fourth pump motor through an AC contactor, respectively.

2. According to claim 1, a digital intelligent fire water supply inspection control system based on PLC technology, Features: The input end of the PLC controller is electrically connected to the input module, and the output end of the PLC controller is electrically connected to the output module.

3. According to claim 2, a digital intelligent fire water supply inspection control system based on PLC technology, Features: The input module includes a first pump pneumatic button, a second pump start button, a third pump start button, and a fourth pump start button, which are used to control the first pump body motor, the second pump body motor, the third pump body motor, and the fourth pump body motor to operate through the AC contactor respectively; The input module also includes a first pump stop button, a second pump stop button, a third pump stop button, and a fourth pump stop button, which are used to control the first pump body motor, the second pump body motor, the third pump body motor, and the fourth pump body motor to cut off power and stop operation respectively through AC contactors.

4. According to claim 3, a digital intelligent fire water supply inspection control system based on PLC technology, Features: The input module also includes valve start button No. 1, valve start button No. 2, valve stop button No. 1, and valve stop button No.

2. Valve start button No. 1 and valve start button No. 2 respectively control the fire water internal circulation valve actuator and the sprinkler water internal circulation valve actuator to power on and operate through an intermediate relay. Valve stop button No. 1 and valve stop button No. 2 respectively control the fire water internal circulation valve actuator and the sprinkler water internal circulation valve actuator to power off and stop through an intermediate relay.

5. According to the PLC technology-based digital intelligent fire water supply inspection control system of claim 1, Features: The output module includes a No. 1 pump operation indicator light, a No. 2 pump operation indicator light, a No. 3 pump operation indicator light, and a No. 4 pump operation indicator light, which are used to respectively indicate that the first pump body motor, the second pump body motor, the third pump body motor and the fourth pump body motor are in operation. The output module also includes a No. 1 valve operation indicator light and a No. 2 valve operation indicator light, which are used to respectively indicate that the fire water internal circulation valve actuator and the sprinkler water internal circulation valve actuator are in operation.

6. According to the PLC technology-based digital intelligent fire water supply inspection control system of claim 1, Features: The output module also includes multiple intermediate relays and multiple AC contactors, which are used to control the operation of the first pump motor, the second pump motor, the third pump motor, the fourth pump motor, the fire water internal circulation valve actuator and the sprinkler water internal circulation valve actuator.

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