Intelligent temporary distribution box system for construction site

Abstract

This invention relates to the field of temporary power supply equipment technology, and more particularly to a smart temporary power distribution box system for chemical plant sites. This smart temporary power distribution box system for chemical plant sites includes a main distribution box connected to the on-site power supply; the output of the main distribution box is connected to the input of multiple distribution boxes; the output of each distribution box is connected to the input of multiple switch boxes; the outputs of the main distribution box, distribution boxes, and switch boxes are all equipped with remotely controllable circuit breakers; and each cabinet door is equipped with a voice module that emits a voice signal when the door is opened; the main distribution box contains a signal reading device to collect system operating parameters and send them to the main control room. The smart temporary power distribution box system for chemical plant sites proposed in this invention monitors operating parameters through the signal reading device and data antenna, and controls the switching status of the output circuit breakers to promptly handle faults or impending faults and prevent the escalation of accidents; the voice module warns surrounding personnel when the cabinet door is opened.

Description

Technical Field

[0001] This invention relates to the field of temporary power supply equipment technology, and in particular to a smart temporary power distribution box system for chemical plants. Background Technology

[0002] In industrial production processes, temporary power distribution boxes are often connected to the existing power supply to power the tools and equipment used during equipment maintenance. In existing technologies, multiple maintenance tasks are often performed simultaneously, resulting in numerous external temporary power supplies. Supervision of these temporary power distribution boxes typically relies solely on manual inspections by electricians, making it impossible to monitor, collect, and analyze power data from each temporary power supply in real time. This also hinders accurate understanding of load distribution and energy consumption within the power supply area. Furthermore, faults such as short circuits, overloads, leakage, and abnormal line temperatures within the temporary power distribution box system cannot be detected promptly, and fault prediction and prevention are impossible. Additionally, existing temporary power distribution box systems do not provide warnings to nearby personnel when the cabinet doors are open, posing a safety hazard when workers pass through open temporary power distribution box systems. Therefore, to address these shortcomings, a smart temporary power distribution box system for chemical plants is proposed. Summary of the Invention

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a smart temporary power distribution box system for chemical plants, which solves the problems that existing temporary power distribution box systems cannot monitor and analyze their own power distribution and power consumption in real time, and cannot warn staff when the power distribution box is opened.

[0004] (II) Technical Solution To address the above problems, this invention provides a smart temporary power distribution box system for chemical plants, comprising: The system includes a main distribution box, sub-distribution boxes, and switch boxes, all enclosed in metal enclosures. The input terminal of the main distribution box is connected to the main power supply at the work site. The output terminal of each main distribution box is connected to the input terminals of multiple sub-distribution boxes, and the output terminal of each sub-distribution box is connected to the input terminals of multiple switch boxes. A main circuit breaker is installed at the power input terminal within the metal enclosure. The front of the metal enclosure has a hinged door, inside which is an infrared sensor switch. A voice module is also located within the metal enclosure, and the infrared sensor switch is connected to the voice module. When the cabinet door is opened, the infrared sensor switch controls the voice module to emit a voice signal; each output terminal of the main distribution box is connected to each distribution box by a residual current circuit breaker and an isolation circuit breaker; each output terminal of the distribution box and switch box is equipped with a residual current device and a remote control circuit breaker; a data antenna is installed inside the metal enclosure, which is connected to the isolation circuit breaker and the remote control circuit breaker and controls the switching status of the isolation circuit breaker and the remote control circuit breaker; a signal reading device is installed inside the main distribution box to read the operating parameters of the input terminals and each output terminal in the main distribution box and send them to the control terminal in the main control room.

[0005] Preferably, the metal enclosure has a power distribution box label on its door.

[0006] Preferably, the outer wall of the metal box is provided with a grounding wire, one end of which is connected to the outer wall of the metal box and the other end is connected to the ground.

[0007] Preferably, the housing of the isolating circuit breaker and the residual current device is a transparent housing.

[0008] Preferably, the signal reading device includes a line temperature sensor, a digital energy meter, and a central data processing device, wherein the line temperature sensor and the digital energy meter are connected to the central data processing device.

[0009] Preferably, the measuring end of the line temperature sensor is installed on the outer surface of the cable at the input end of the main distribution box.

[0010] Preferably, the signal reading device further includes sensing transformers, wherein one set of sensing transformers is connected between the digital energy meter and the cable, and another set of sensing transformers is connected between the central data processing device and the cable.

[0011] Preferably, the distribution box is provided with a plurality of maintenance sockets, which are connected to the power supply in the distribution box.

[0012] (III) Beneficial Effects The intelligent temporary power distribution box system for chemical plants provided by this invention can monitor and analyze the power operation parameters and status within the temporary power supply system in real time through a signal reading device. It can also remotely control the switching status of isolation circuit breakers and remote-controlled circuit breakers via a data antenna, enabling timely shutdown of faulty parts in the event of a fault or impending fault in the temporary power distribution box system to prevent the accident from escalating. Furthermore, by incorporating an infrared sensor switch and a voice module within the metal enclosure, and controlling the voice module to emit a voice signal when the cabinet door is opened, it can warn surrounding personnel when the cabinet door is opened, thus preventing safety accidents. Attached Figure Description

[0013] Figure 1 This is a system structure diagram of the intelligent chemical plant temporary power distribution box system of the present invention; Figure 2 This is a structural diagram of the main distribution box of the intelligent chemical plant temporary power distribution box system of the present invention; Figure 3 This is a diagram showing the internal structure of the main distribution box of the intelligent temporary power distribution box system for chemical plant sites according to the present invention. Figure 4 This is a structural diagram of the distribution box of the intelligent chemical plant temporary power distribution box system of the present invention; Figure 5 This is a diagram showing the internal structure of the distribution box in the intelligent chemical plant temporary power distribution box system of the present invention. Figure 6 This is a structural diagram of the switch box of the intelligent temporary power distribution box system for chemical plants according to the present invention; Figure 7 This is a diagram showing the internal structure of the switch box in the intelligent chemical plant temporary power distribution box system of the present invention.

[0014] The components include: 1. Metal casing; 2. Distribution box label; 3. Grounding wire; 4. Main circuit breaker; 5. Temperature sensor; 6. Digital energy meter; 7. Current transformer; 8. Data antenna; 9. Infrared sensor switch; 10. Central data processing unit; 11. Voice module; 12. Isolation circuit breaker; 13. Residual current device; 14. Remote control circuit breaker; and 15. Maintenance socket. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] In the description of this invention, it is necessary to understand that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", "top", and "bottom" are based on the orientation or positional relationship shown in the accompanying drawings. The purpose is only to facilitate the description of this invention and to simplify the description. It is not intended to indicate or imply that the component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0017] like Figure 1-7 As shown, this invention provides a smart temporary power distribution box system for chemical plants, specifically including: a main distribution box, distribution boxes, and switch boxes. The main distribution box serves as the main power source for the temporary power supply system. Typically, there is only one main distribution box in each temporary power supply system. The temporary power supply system usually divides the power supply area into multiple sub-areas, and each sub-area has a distribution box that supplies power to the corresponding sub-area. The power supply to the distribution boxes is usually drawn from the main distribution box, and the main distribution box can control the power switches of each distribution box. Switch boxes are located in each sub-area, and each sub-area has multiple switch boxes. The power supply to the switch boxes is usually drawn from the distribution boxes within that sub-area. After connecting maintenance equipment to the switch boxes, the power supply status of the equipment can be controlled through the switch boxes. Through the cooperation of the main distribution box, distribution boxes, and switch boxes, the temporary power distribution box system allows for individual power outages and restorations to each sub-area and equipment, improving the flexibility of the equipment during operation. Typically, the input terminal of the main distribution box is connected to the main power supply at the work site, the output terminal of each main distribution box is connected to the input terminals of multiple sub-distribution boxes, and the output terminal of each sub-distribution box is connected to the input terminals of multiple switch boxes.

[0018] The main distribution box, sub-distribution box, and switch box are all enclosed in a metal enclosure 1. This metal enclosure 1 serves as the main body of the main distribution box, sub-distribution box, and switch box, responsible for installing and supporting other internal components and protecting them from direct exposure to air. Inside the metal enclosure 1, a main circuit breaker 4 is installed at the power input terminal. The main circuit breaker 4 controls the power flow within the metal enclosure 1. During maintenance, operating the main circuit breaker can disconnect or connect the power supply to the corresponding main distribution box, sub-distribution box, or switch box, thereby changing the operating state within the metal enclosure 1.

[0019] The metal enclosure 1 has a hinged door on the front. One side of the door is hinged to the edge of the metal enclosure 1. Opening the door by flipping it outwards allows for adjustment of the cable routing and the installation and position of various components and electronic devices inside the metal enclosure 1. An infrared sensor switch 9 is installed inside the door, and a voice module 11 is also installed inside the metal enclosure 1. The infrared sensor switch 9 is connected to the voice module 11. When the door is opened, the infrared sensor switch 9 controls the voice module 11 to emit a voice signal. The measuring end of the infrared sensor switch 9 faces the door. When the door is opened, the infrared sensor switch 9 sends an action signal to the voice module 11 to control its operation. The voice module 11 is typically a speaker or other sound playback device. Upon receiving the action signal, the voice module 11 plays a pre-stored sound signal to warn nearby personnel that the metal enclosure 1 door is open, prompting maintenance personnel to close the door promptly and warning unauthorized personnel to stay away to prevent accidental electric shock. Normally, the measuring end of the infrared sensor switch 9 emits an infrared signal forward and calculates the distance to the cabinet door based on the reflected infrared signal. Before operation, the infrared sensor switch 9 is operated to set a safe distance. When the measurement result shows that the cabinet door distance exceeds the safe distance, it means that the cabinet door is open. The infrared sensor switch 9 then sends an action signal to the voice module 11 to warn the surrounding area. When the measurement result shows that the cabinet door distance is within the safe distance, it means that the cabinet door is closed. The infrared sensor switch 9 then sends a shutdown signal to the voice module 11 to stop sending the sound warning signal.

[0020] To differentiate between the main distribution box, sub-distribution boxes, and switch boxes, a distribution box label 2 is typically placed on the door of the metal enclosure 1. This label 2 records the operational information of the metal enclosure 1 and corresponds to its actual operation. For example, it might indicate "main distribution box," "sub-distribution box," or "switch box" to distinguish the function of the metal enclosure 1. Alternatively, metal enclosures 1 of the same level can be numbered, and the corresponding serial numbers can be entered into the distribution box label 2 for further differentiation. For instance, all switch cabinets within the same sub-area can be uniformly sorted, and their serial numbers can be written into the distribution box label 2, thus providing a more detailed division of the metal enclosures 1.

[0021] It should be noted that the outer wall of the metal enclosure 1 is equipped with a grounding wire 3. One end of the grounding wire 3 is connected to the outer wall of the metal enclosure 1, and the other end is connected to the ground. The grounding wire 3 connects the metal enclosure 1 to the ground. When the components inside the metal enclosure 1 leak current, the metal enclosure 1 will become energized. At this time, the grounding wire 3 will conduct the charge on the metal enclosure 1 to the ground, thus providing grounding protection for the metal enclosure 1.

[0022] In this invention, each of the main distribution box output terminals is equipped with a residual current circuit breaker 13 and an isolation circuit breaker 12 between itself and each distribution box; each output terminal of the distribution box and switch box is equipped with a residual current circuit breaker 13 and a remote control circuit breaker 14; a data antenna 8 is provided inside the metal enclosure 1, which is connected to the isolation circuit breaker 12 and the remote control circuit breaker 14 and controls their switching states. The isolation circuit breaker 12, the residual current circuit breaker 13, and the remote control circuit breaker 14 are used to control the switching states of the output terminals of the metal enclosure 1. When any one of the isolation circuit breaker 12, the residual current circuit breaker 13, or the remote control circuit breaker 14 is in an open state, the corresponding output line will be cut off and power supply will be stopped. The data antenna 8 is capable of long-distance wireless data transmission with external data transmission equipment. The isolation circuit breaker 12 and the remote control circuit breaker 14 are remotely operated circuit breakers. The data antenna 8 receives control signals sent by external information and remotely controls the switching status of each output line in the main distribution box, distribution box and switch cabinet according to the switching status of the isolation circuit breaker 12 and the remote control circuit breaker 14. When a circuit fault occurs in the metal box 1, the staff can cut off the line corresponding to the faulty line at the first time, so as to respond to the fault in a timely manner and prevent the accident from escalating due to the failure to detect the fault in the temporary wiring system in time.

[0023] The main distribution box is equipped with a signal reading device that reads the operating parameters of the input and output terminals within the main distribution box and sends them to the control terminal in the main control room. The signal reading device is installed on the cable inside the box 1, reading the operating status and parameters of the current within the conductor and performing data analysis based on the monitored signals to provide data support for determining the operating status within the metal box 1. With the cooperation of the signal reading device, data antenna 8, isolating circuit breaker 12, and remote control circuit breaker 14, staff in the main control room can view the operating parameters and usage status of each temporary distribution box system through the control terminal. In the event of a fault in the temporary distribution box system, staff can immediately disconnect the faulty part by operating the isolating circuit breaker 12 and the remote control circuit breaker 14, thus enabling immediate power outage handling in the event of an accident and preventing the escalation of the accident due to lack of detection and handling after a fault in the temporary distribution box system.

[0024] The signal reading device includes a line temperature sensor 5, a digital energy meter 6, and a central data processing unit 10. The line temperature sensor 5 and the digital energy meter 6 are connected to the central data processing unit 10. The temperature sensor 5 measures the temperature of the cable. Under normal power usage, the cable temperature remains within a safe range. When the cable temperature exceeds the safe range, it indicates a circuit malfunction. The measuring end of the line temperature sensor 5 is installed on the outer surface of the cable at the input end of the main distribution box. The digital energy meter 6 measures the power supply parameters such as current, voltage, and energy transmitted within the cable. After sending the measured parameters to the main control room, staff can monitor the current operation status within the temporary distribution box system from the main control room. The central data processing device 10 is responsible for analyzing and processing data. The central data processing device 10 typically has pre-input safe ranges for current, voltage, temperature, and power consumption within the temporary power distribution box system. After being connected to the temperature sensor 5 and the digital energy meter 6, the central data processing device 10 compares the received values ​​with the preset safe ranges. When the values ​​are within the safe range, it indicates that the temporary power distribution box system is working normally. When the values ​​exceed the normal range, it indicates that the temporary power distribution box system is malfunctioning. The central data processing device 10 sends a control signal to the data antenna 8 to cut off the power to the faulty line. It automatically cuts off the power at the first moment of the power distribution box system malfunction to prevent the accident from escalating and improve the efficiency and safety of the device's accident handling.

[0025] It should be noted that the signal reading device also includes two sets of sensing transformers 7. One set of sensing transformers 7 is connected between the digital energy meter 6 and the cable, and the other set of sensing transformers 7 is connected between the central data processing device 10 and the cable. The sensing transformers 7 serve a data acquisition function. Installed near the cable, they generate an induced current corresponding to the current inside the cable based on the principle of electromagnetic induction. The parameters of the induced current are related to the parameters of the operating current inside the cable and are also related to the model and performance of the sensing transformers 7. After being connected to the digital energy meter 6, the sensing transformers 7 input the induced current to the measuring contacts of the digital energy meter 6. The digital energy meter 7 can obtain parameters such as the voltage and current of the operating current inside the cable by measuring the induced current. The sensing transformers 7 are also connected to the signal input terminal of the central data processing device 10, inputting the induced current into the central data processing device 10. The central data processing device 10 calculates the energy consumption of the operating current inside the cable based on the induced current parameters transmitted by the sensing transformers 7. The sensing transformer 7 is equipped with a protection winding. The output end of the protection winding is connected to the signal input end of the central data processing device 10. When a fault such as a short circuit or open circuit occurs in the cable current, the protection winding will send a fault signal. After the fault signal is sent to the central data processing device 10, the central data processing device 10 sends a control signal to the data antenna 8 to cut off the power. Under normal circumstances, a sensing transformer 7 connected to the central data processing device 10 is installed on the input cable and each output cable in the main distribution box, and the power operation parameters of the input and each output are monitored in real time.

[0026] Typically, the enclosures of the isolating circuit breaker 12, the residual current device 13, and the remote control circuit breaker 14 are transparent. This allows operators to clearly see the internal structure and operational status during operation. When a system current fault occurs, operators arriving on-site can directly observe the internal operational status of the isolating circuit breaker 12, the residual current device 13, and the remote control circuit breaker 14, thus locating the fault point more quickly and improving the efficiency of maintenance work.

[0027] In addition, the distribution box is equipped with several maintenance sockets 15, which are connected to the power supply inside the distribution box. Since there is only one distribution box in each sub-area, when the metal box 1 or the grounding wire 3 of the distribution box fails, it is necessary to repair the distribution box using maintenance tools. At this time, after disconnecting the power to the output terminal of the distribution box, the input terminal of the maintenance tool can be connected to the maintenance socket 15 to provide power to the maintenance tool. There is no need to connect an additional switch box, reducing the workload of the staff.

[0028] The intelligent temporary power distribution box system for chemical plants provided by this invention allows staff to remotely monitor various operating parameters within the system in real time and immediately cut off power in case of a malfunction. Simultaneously, it automatically emits an audio signal to warn nearby staff when the metal cabinet door is opened. The specific operation process of this device is as follows: Step 1: Confirm the number of distribution boxes and switch boxes according to the work schedule, and connect the main distribution box, distribution boxes, and switch boxes according to the work plan. At this time, the input terminal of the main distribution box is connected to the main power supply, the input terminal of the distribution box is connected to the output terminal of the main distribution box, and the input terminals of the corresponding number of switch boxes are connected to the output terminals of each distribution box according to the work plan.

[0029] Step 2: Connect the equipment under maintenance to the output terminal of the switch box and start the temporary distribution box system. At this time, the main distribution box draws power from the field and distributes it to each distribution box. The power in the distribution boxes is then transmitted to the electrical equipment through the switch box to supply power to the equipment.

[0030] Step 3: The signal reading device monitors the operating parameters within the distribution box system in real time and sends them to the control terminal in the main control room. During this process, the sensing transformer is installed on the cable and generates an induced current based on the operating current within the cable. This induced current is then input into the digital energy meter and the central data processing device. The central data processing device and the digital energy meter measure the operating current parameters within the cable based on the induced current and transmit the measured data to the control terminal in the main control room via a data antenna.

[0031] Step 4: During operation, when the cabinet door of the metal enclosure is opened, the voice module emits an audio message to warn surrounding personnel. In this process, if the infrared sensor switch takes longer than the set safe time to receive the returned infrared light after the door is opened, it indicates that the door is open. The infrared sensor switch then sends a control signal to the voice module, which, upon receiving the signal, activates and emits an audio warning to the surrounding area.

[0032] Step 5: When a power failure occurs in the temporary distribution box system, a fault signal is sent to the main control room, and the power supply corresponding to the faulty part is cut off. At this time, the central data processing unit receives the fault signal transmitted by the protection winding of the sensing transformer, and the data it receives also changes, exceeding the predetermined safe value range. Based on the source of the fault signal, the central data processing unit sends a control signal to the data antenna to close the remote control circuit breaker and isolation circuit breaker at the corresponding fault location to cut off the power.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A smart construction site temporary power distribution box system, characterized in that, include: The main distribution box, distribution boxes, and switch boxes are equipped with metal enclosures (1). The input terminal of the main distribution box is connected to the main power supply at the work site. The output terminal of each main distribution box is connected to the input terminal of multiple distribution boxes, and the output terminal of each distribution box is connected to the input terminal of multiple switch boxes. Inside the metal enclosures (1) of the main distribution box, distribution boxes, and switch boxes, the power input terminal is equipped with a main circuit breaker (4). The front of the metal enclosure (1) is equipped with an openable cabinet door. An infrared sensor switch (9) is installed inside the cabinet door. A voice module (11) is installed inside the metal enclosure (1). The infrared sensor switch (9) is connected to the voice module (11). When the cabinet door is opened, the infrared sensor switch (9) activates the voice module (11). The line induction switch (9) controls the voice module (11) to emit a voice signal; a leakage current protection circuit breaker (13) and an isolation circuit breaker (12) are provided between the output end of the main distribution box and each distribution box; a leakage current protection device (13) and a remote control circuit breaker (14) are provided at each output end of the distribution box and the switch box; a data antenna (8) is provided inside the metal box (1), and the data antenna is connected to the isolation circuit breaker (12) and the remote control circuit breaker (14) and controls the switching status of the isolation circuit breaker (12) and the remote control circuit breaker (14); a signal reading device is provided inside the main distribution box to read the operating parameters of the input end and each output end in the main distribution box and send them to the control terminal in the main control room.

2. The intelligent temporary power distribution box system for chemical plant sites according to claim 1, characterized in that, The metal enclosure (1) has a distribution box label (2) on its door.

3. The intelligent temporary power distribution box system for chemical plant sites according to claim 2, characterized in that, The outer wall of the metal box (1) is provided with a grounding wire (3), one end of which is connected to the outer wall of the metal box (1) and the other end is connected to the ground.

4. The intelligent temporary power distribution box system for chemical plant sites according to claim 1, characterized in that, The casings of the isolating circuit breaker (12) and the residual current device (13) are transparent.

5. The intelligent temporary power distribution box system for chemical plant sites according to claim 1, characterized in that, The signal reading device includes a line temperature sensor (5), a digital energy meter (6), and a central data processing device (10), wherein the line temperature sensor (5) and the digital energy meter (6) are connected to the central data processing device (10).

6. The intelligent temporary power distribution box system for chemical plant sites according to claim 5, characterized in that, The measuring end of the line temperature sensor (5) is installed on the outer surface of the cable at the input end of the main distribution box.

7. The intelligent temporary power distribution box system for chemical plant sites according to claim 6, characterized in that, The signal reading device also includes sensing transformers (7), one set of sensing transformers (7) is connected between the digital energy meter (6) and the cable, and another set of sensing transformers (7) is connected between the central data processing device (10) and the cable.

8. The intelligent temporary power distribution box system for chemical plant sites according to claim 1, characterized in that, The distribution box is equipped with several maintenance sockets (15), which are connected to the power supply inside the distribution box.

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