Heating control system suitable for tunnel ice melting

Abstract

The invention relates to a heating control system suitable for tunnel ice melting. The heating control system is characterized by comprising a remote monitoring center (1), a wireless communication module (2), a power distribution control cabinet (3), an in-tunnel heating control box (4), a drainage type radiation heating plate (5), a heating plate temperature sensor (6) and an environment temperature sensor (7), the remote monitoring center (1) is used for communicating with a plurality of control cabinets through a wireless network and monitoring the working state, temperature, current, voltage, fault alarm and environment temperature of the heating plate controlled by the connected control cabinets; the control cabinet is used for sending heating starting and stopping commands to the control cabinet through a wireless network. According to the heating control system suitable for tunnel ice melting, the functions of remote monitoring, local control, automatic control, temperature monitoring, single-point isolation and the like can be achieved, field maintenance is facilitated, and personnel safety is guaranteed.

Description

Technical Field

[0001] The invention relates to a tunnel ice melting technology, in particular to a heating control system suitable for tunnel ice melting. Background Art

[0002] Tunnel leakage occurs when the tunnel passes through aquifers, areas with developed karst fissures, and areas with abundant groundwater and shallow burial depth. When the temperature in the tunnel drops to around 0°C in winter, ice often forms in the leaking areas. Icicles invading the limit affect driving, and in severe cases, they can cause contact network power connection, ice spreading over the rails, damage the rails and accessories, and sidewalls to invade the limit, posing a serious threat to driving safety. The current domestic treatment method is to arrange staff to regularly inspect the lines and manually remove icicles when they are found.

[0003] This method is not only inefficient, but also may cause the risk of electric shock. Summary of the invention

[0004] The purpose of the present invention is to provide a heating control system suitable for tunnel ice melting, which can realize functions such as remote monitoring, local control, automatic control, temperature monitoring, single-point isolation, etc., facilitate on-site maintenance, and ensure personnel safety.

[0005] The object of the present invention is achieved by involving a heating control system suitable for tunnel ice melting, which includes a remote monitoring center, a wireless communication module, a power distribution control cabinet, a tunnel heating control box, a drainage type radiation heating plate, a heating plate temperature sensor, and an ambient temperature sensor.

[0006] The remote monitoring center is used to communicate with multiple control cabinets through a wireless network to monitor the working status, temperature, current, voltage, fault alarm, and ambient temperature of the heating plate controlled by the connected control cabinet.

[0007] Used to send heating on and off commands to the control cabinet via the wireless network.

[0008] The power distribution control cabinet is used to receive control commands from the remote monitoring center and send system work logs and fault alarm information to the remote monitoring center.

[0009] It is used to receive the working status, temperature detection and fault alarm information from the tunnel heating control box, send heating on and off commands to the heating control box in the tunnel, and shut down and turn on the heating power supply at the same time.

[0010] The heating control box in the tunnel is used to receive heating on and off commands from the distribution control cabinet, collect the temperature of the drainage type radiation heating plate, and turn the power on and off to the heating plate according to the temperature of the drainage type radiation heating plate and the heating threshold; and send working status, temperature detection and fault alarm information to the distribution control cabinet.

[0011] The drainage type radiant heating panels are installed at the water leakage points of the tunnel to heat the tunnel wall by radiant heat, and the water is drained to the designated points through the drainage type radiant heating panels.

[0012] The ambient temperature sensor is installed in the power distribution control cabinet to detect the local ambient temperature as a judgment condition for heating.

[0013] The heating plate temperature sensor is installed in the drainage type radiation heating plate to detect the temperature of the drainage type radiation heating plate as a judgment condition for heating.

[0014] The wireless communication module is installed in the power distribution control cabinet, and the wireless communication module serves as a data transmission channel between the power distribution control cabinet and the remote monitoring center.

[0015] The advantages of the present invention are: it utilizes the radiation heating principle to automatically remove icicles in the tunnel, thereby ensuring the personal safety of ice breakers; it utilizes a wireless network architecture to build the system, thereby reducing the use of cables in the project; it is easy to operate through remote control and on-site control; it has automatic monitoring and fault alarm functions, thereby facilitating system maintenance; it uses a radiation heating plate for the cement wall of the tunnel, thereby overcoming the problem of poor heating effect caused by uneven wall surfaces; at the same time, a guide hole is opened on the heating plate, and a guide plate is installed under the heating plate, so that water after the ice melts is directed to one side and discharged in a required direction, thereby preventing water from being diverted to the traction line or rails to cause secondary disasters. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the architecture of a heating control system suitable for tunnel ice melting according to the present invention; Figure 2 It is the principle and connection diagram of remote monitoring center 1; Figure 3 It is the principle and connection diagram of the power distribution control cabinet 3; Figure 4 It is the schematic diagram of the heating control box 4 in the tunnel; Figure 5 The invention discloses a control logic diagram of a heating control system for tunnel ice melting.

[0017] In the figure: 1. Remote monitoring center, 2. Wireless communication module, 3. Power distribution control cabinet, 4. Tunnel heating control box, 5. Drainage type radiation heating plate, 6. Heating plate temperature sensor, 7. Ambient temperature sensor. DETAILED DESCRIPTION

[0018] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and examples, so as to fully understand how the present invention applies technical means to solve technical problems and achieve the implementation process of technical effects and implement them accordingly.

[0019] like Figure 1As shown, the present invention relates to a heating control system suitable for tunnel ice melting, which includes a remote monitoring center 1, a wireless communication module 2, a power distribution control cabinet 3, a tunnel heating control box 4, a drainage type radiation heating plate 5, a heating plate temperature sensor 6, and an ambient temperature sensor 7; The remote monitoring center 1 is used to communicate with multiple control cabinets through a wireless network to monitor the working status, temperature, current, voltage, fault alarm, and ambient temperature of the heating plate controlled by the connected control cabinet; Used to send heating on and off commands to the control cabinet via the wireless network; The power distribution control cabinet 3 is used to receive control commands from the remote monitoring center 1 and send system work logs and fault alarm information to the remote monitoring center 1; Used to receive the working status, temperature detection and fault alarm information from the tunnel heating control box 4, send heating on and off commands to the heating control box 4 in the tunnel, and turn off and on the heating power supply at the same time; The heating control box 4 in the tunnel is used to receive the heating on and off commands from the power distribution control cabinet 3, collect the temperature of the drainage type radiation heating plate 5, and turn the heating plate on and off according to the temperature of the drainage type radiation heating plate 5 and the heating threshold; send the working status, temperature detection and fault alarm information to the power distribution control cabinet 3; The drainage type radiant heating panel 5 is installed at the water leakage point of the tunnel to heat the tunnel wall by radiant heat, and the water is drained to the designated point through the drainage type radiant heating panel 5; The ambient temperature sensor 7 is installed in the power distribution control cabinet 3 and is used to detect the local ambient temperature as a determination condition for heating; The heating plate temperature sensor 6 is installed in the drainage type radiation heating plate 5 to detect the temperature of the drainage type radiation heating plate 5 as a determination condition for heating; The wireless communication module 2 is installed in the power distribution control cabinet 3 , and the wireless communication module 2 serves as a data transmission channel between the power distribution control cabinet 3 and the remote monitoring center 1 .

[0020] like Figure 2 As shown, the remote monitoring center 1 includes an industrial computer, a server, a communication module, and monitoring software. The industrial computer is installed with the monitoring software, and is electrically connected to the mouse, keyboard, display, and communication module through an interface to receive the operator's work instructions and query commands. The distribution control cabinet 3 is remotely connected through the communication module to receive data information from the distribution control cabinet 3, send work instructions to it, and display the system working status, fault alarm information, and work log through the display. The server is installed with a database to store system configuration information, working day, and fault information.

[0021] like Figure 3As shown, the power distribution control cabinet 3 includes: a process control unit, an ambient temperature sensor 7, a communication module, a main protection switch, a contactor, a leakage protection switch, and a terminal block; the process control unit is the core of the power distribution control cabinet 3, responsible for data reception, data processing, and command issuance, and the process control unit is electrically connected to the ambient temperature sensor 7 through an isolation interface to obtain the local ambient temperature as a basis for turning the heating on and off; the process control unit is electrically connected to the communication module network interface, wherein the communication module includes an Ethernet communication module and a serial bus communication module, the Ethernet communication module is connected to the remote monitoring center 1 through a 4G channel, and the serial bus communication module is connected to the heating control box 4 in the tunnel through a communication cable, so as to realize the communication between the power distribution control cabinet 3 and the heating control box 4 in the tunnel; the main protection switch A molded case circuit breaker is used, and the main protection switch has the ability to protect against current overload and short circuit. After the box-type transformer power supply passes through the main protection switch, the branch is sequentially supplied to the heating control box 4 in the tunnel through the output interface through a multi-way power supply lightning protection unit, a branch terminal, a multi-way current / voltage detection module, a multi-way overload protection switch, and a multi-way contactor. The branch terminal has an output to supply the power conversion module, which converts the required different voltages into various functional modules. The multi-way current / voltage detection module feeds back the voltage and current of each channel provided to the heating control box 4 in the tunnel to the process control unit, which supports the load changes of the heating control box 4 in the tunnel and controls the overload protection switch and the contactor to be turned on at any time. The overload protection switch and the contactor also have dynamic signals provided to the process control unit.

[0022] The process control unit realizes command reception and command output control through the communication module via the human-machine interaction interface.

[0023] A mode conversion module is connected between the contactor and the process control unit to complete the mode switching control. The contactor receives the command of the process control unit to turn on or off the power supply of the output circuit; the leakage protection switch prevents the output circuit from overload or leakage; the wiring terminal is the interface for power access and circuit output of the distribution control cabinet 3.

[0024] like Figure 4As shown, the heating control box 4 in the tunnel includes a control unit (MCU), a power conversion isolation module, a temperature sensor, a current sensor, a voltage sensor, a thyristor, a communication module, a human-computer interaction interface, and a debugging / maintenance interface; the heating control box 4 in the tunnel collects the ambient temperature in the tunnel and the temperature of the heating plate through the temperature sensor, and transmits them to the control unit (MCU); it is connected to the distribution control cabinet 3 through the communication module, receives the control command and transmits it to the control unit (MCU), and at the same time feeds back the working status; the working voltage and working current status of each heating plate are collected through the voltage sensor and the current sensor, and transmitted to the control unit (MCU); the control unit (MCU) calculates the received data to determine whether to heat; the heating function of the heating plate is turned on and off through the thyristor, and the heating power of the heating plate is adjusted, the manual heating operation is performed through the human-computer interaction interface (buttons and LED indicator lights) and its working status is observed, the maintenance equipment is connected through the maintenance interface for on-site debugging, the loop output interface of the distribution control cabinet 3 is connected through the input interface, and the heating plate is connected through the output interface to power the heating plate.

[0025] like Figure 5 As shown, the working mode of the present invention has two states: system off and system on. When the system is off, the system stops heating, and the power distribution control cabinet 3 does not supply power to the heating control box 4 in the tunnel. When the system is on, each heating circuit of the power distribution control cabinet 3 has three control modes: manual closing, manual heating and automatic heating. When manually closed, the closed circuit does not supply power to the connected heating control box 4 in the tunnel, and does not affect the normal operation of other circuits; when manually heated, the power distribution control cabinet 3 is in the heating on state, and supplies power to the connected heating control box 4 in the tunnel. The heating control box 4 in the tunnel turns on and off the heating according to the collected heating plate temperature and the set heating parameters, and records the working state and fault information at the same time; when heated automatically, the power distribution control cabinet 3 disconnects and conducts the control circuit according to the collected ambient temperature and the set heating on and off temperature limit. When the control circuit is on, power is supplied to the heating control box 4 in the tunnel. The heating control box 4 in the tunnel turns on and off the heating according to the collected heating plate temperature and the set heating parameters, and records the working state and fault information at the same time.

[0026] When the system is turned on, its workflow is: System startup; Detect whether the working mode is manual heating or automatic heating, and enter the corresponding working mode.

[0027] Manual heating mode: enter heating step 7 when manually turned on); stop heating and enter heating step 2 when manually turned off); Automatic heating mode: The power distribution control cabinet detects the ambient temperature value and compares it with the set ambient temperature heating start value (lower limit value) and ambient temperature heating stop value (upper limit value); When the ambient temperature is greater than the heating shutdown value (upper limit), the output circuit of the power distribution control cabinet is disconnected, and the power supply to the heating control box in the tunnel is stopped, and the heating step 2 is entered); When the ambient temperature is greater than the heating start value (lower limit), the output circuit of the power distribution control cabinet is turned on to transmit power to the heating control box in the tunnel; The heating control box in the tunnel detects the temperature value of the heating plate and compares it with the set heating plate temperature heating on value (lower limit value) and heating plate temperature heating off value (upper limit value); When the heating plate temperature value is greater than the preset heating plate temperature heating off value (upper limit value), heating stops and returns to step 2); When the heating plate temperature value is less than the preset heating plate temperature heating start value (lower limit value), heating starts and returns to step 2).

[0028] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A heating control system suitable for tunnel ice melting, characterized by: It includes a remote monitoring center (1), a wireless communication module (2), a power distribution control cabinet (3), a tunnel heating control box (4), a drainage type radiation heating plate (5), a heating plate temperature sensor (6), and an ambient temperature sensor (7); A remote monitoring center (1) is used to communicate with multiple control cabinets via a wireless network to monitor the working status, temperature, current, voltage, fault alarm, and ambient temperature of the heating plates controlled by the connected control cabinets; Used to send heating on and off commands to the control cabinet via the wireless network; A power distribution control cabinet (3) is used to receive control commands from a remote monitoring center (1) and send system work logs and fault alarm information to the remote monitoring center (1); Used to receive working status, temperature detection and fault alarm information from the tunnel heating control box (4), send heating on and off commands to the heating control box (4) in the tunnel, and simultaneously shut down and turn on the heating power supply; The heating control box (4) in the tunnel is used to receive heating on and off commands from the power distribution control cabinet (3), collect the temperature of the drainage type radiation heating plate (5), and turn the heating plate on and off according to the temperature of the drainage type radiation heating plate (5) and the heating threshold; and send working status, temperature detection and fault alarm information to the power distribution control cabinet (3); The drainage type radiation heating panel (5) is installed at the water leakage point of the tunnel, and is used to heat the tunnel wall by radiation heat, and the water is drained to the designated point through the drainage type radiation heating panel (5); An ambient temperature sensor (7) is installed in the power distribution control cabinet (3) and is used to detect the local ambient temperature as a determination condition for heating; A heating plate temperature sensor (6) is installed in the drainage type radiation heating plate (5) to detect the temperature of the drainage type radiation heating plate (5) as a determination condition for heating; The wireless communication module (2) is installed in the power distribution control cabinet (3), and the wireless communication module (2) serves as a data transmission channel between the power distribution control cabinet (3) and the remote monitoring center (1).

2. A heating control system suitable for tunnel ice melting according to claim 1, characterized in that: The remote monitoring center (1) includes an industrial computer, a server, a communication module, and monitoring software. The industrial computer is installed with the monitoring software and is electrically connected to a mouse, a keyboard, a display, and the communication module through an interface to receive work instructions and query commands from an operator. The remote monitoring center (1) is remotely connected to a power distribution control cabinet (3) through the communication module to receive data information from the power distribution control cabinet (3) and send work instructions to the cabinet. The display shows the system working status, fault alarm information, and work log. The server is installed with a database to store system configuration information, work date, and fault information.

3. A heating control system suitable for tunnel ice melting according to claim 1, characterized in that: The power distribution control cabinet (3) comprises: a process control unit, an ambient temperature sensor (7), a communication module, a main protection switch, a contactor, a leakage protection switch, and a terminal block; the process control unit is the core of the power distribution control cabinet (3) and is responsible for data reception, data processing, and command issuance. The process control unit is electrically connected to the ambient temperature sensor (7) via an isolation interface to obtain the local ambient temperature as a basis for turning the heating on and off; the process control unit is electrically connected to a network interface of the communication module, wherein the communication module comprises an Ethernet communication module and a serial bus communication module, the Ethernet communication module is connected to the remote monitoring center (1) via a 4G channel, and the serial bus communication module is connected to the heating control box (4) in the tunnel via a communication cable to realize communication between the power distribution control cabinet (3) and the heating control box (4) in the tunnel; the main The protective switch adopts a molded case circuit breaker, and the main protective switch has current overload and short circuit protection capabilities; after the box-type transformer power passes through the main protective switch, the branch passes through the multi-way power lightning protection unit, the branch terminal, the multi-way current / voltage detection module, the multi-way overload protection switch, and the multi-way contactor in turn, and then is supplied to the tunnel heating control box (4) through the output interface; the branch terminal has an output to supply the power conversion module, which is converted by the power conversion module into different required voltages to supply various functional modules; the multi-way current / voltage detection module feeds back the voltage and current of each channel provided to the tunnel heating control box (4) to the process control unit, and the process control unit supports the load change of the tunnel heating control box (4) and controls the overload protection switch and the contactor to be turned on at any time, and the overload protection switch and the contactor also have dynamic signals provided to the process control unit.

4. A heating control system suitable for tunnel ice melting according to claim 1, characterized in that: The tunnel heating control box (4) comprises a control unit, a power conversion isolation module, a temperature sensor (7), a current sensor, a voltage sensor, a thyristor, a communication module, a human-machine interaction interface, and a debugging / maintenance interface. The tunnel heating control box (4) collects the ambient temperature in the tunnel and the temperature of the heating plate through the temperature sensor (7) and transmits them to the control unit; the communication module is connected to the power distribution control cabinet (3), receives control commands and transmits them to the control unit, and simultaneously feeds back the working status; the voltage sensor and the current sensor are used to collect the working voltage and working current status of each heating plate, and transmit them to the control unit; the control unit calculates the received data and determines whether to heat; the thyristor is used to turn on and off the heating function of the heating plate and adjust the heating power of the heating plate; the human-machine interaction interface is used to perform manual heating operations and observe its working status; the maintenance interface is used to connect to the maintenance equipment for on-site debugging; the input interface is used to connect to the loop output interface of the power distribution control cabinet (3); the output interface is used to connect to the heating plate and power is supplied to the heating plate.

5. A heating control system suitable for tunnel ice melting according to claim 1, characterized in that: The heating control has two working modes: system off and system on. When the system is off, the system stops heating, and the power distribution control cabinet (3) does not supply power to the heating control box (4) in the tunnel. When the system is on, each heating circuit of the power distribution control cabinet (3) has three control modes: manual off, manual heating, and automatic heating. When manually off, the off circuit does not supply power to the connected heating control box (4) in the tunnel, and does not affect the normal operation of other circuits. When manually heating, the power distribution control cabinet (3) is in the heating on state, supplying power to the connected heating control box (4) in the tunnel. The heating control box (4) in the tunnel turns on and off the heating according to the collected heating plate temperature and the set heating parameters, and records the working state and fault information at the same time. When automatically heating, the power distribution control cabinet (3) disconnects and conducts the control circuit according to the collected ambient temperature and the set heating on and off temperature limits. When the control circuit is on, power is supplied to the heating control box (4) in the tunnel. The heating control box (4) in the tunnel turns on and off the heating according to the collected heating plate temperature and the set heating parameters, and records the working state and fault information at the same time.

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