Heating control device suitable for tunnel ice melting

Abstract

A heating control device for tunnel ice melting is characterized by comprising a remote monitoring center (1), a wireless communication module (2), a power distribution control cabinet (3), a heating control box (4) in a tunnel, a drainage type radiation heating plate (5), a heating plate temperature sensor (6), an environment temperature sensor (7) and a load power supply working towards the drainage type radiation heating plate (5). The remote monitoring center (1) is electrically connected with the power distribution control cabinet (3) and the heating control box (4) in the tunnel through the wireless communication module (2) in a wireless network mode. The load power supply is in power electric connection with the in-tunnel heating control box (4) through the power distribution control cabinet (3), and the in-tunnel heating control box (4) is in power electric connection with the drainage type radiation heating plate (5). According to the heating control device 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 utility model relates to a tunnel ice melting technology, in particular to a heating control device suitable for tunnel ice melting. BACKGROUND

[0002] When the tunnel passes through aquifer, karst fissure development section and rich underground water with shallow depth, tunnel water leakage is formed. When the tunnel temperature drops to about 0 DEG C in winter, ice column intrusion limit affects driving, and serious ice column intrusion limit can cause contact net continuous electricity, ice steel rail, damage steel rail and accessories, side wall intrusion limit and bring great harm to driving safety. The current domestic processing mode is to arrange staff to regularly inspect the line, and manually knock off the ice column after finding the ice column.

[0003] This mode not only has low efficiency, but also has the risk of electric shock. UTILITY MODEL CONTENT

[0004] The utility model discloses a heating control device suitable for tunnel ice melting, which can realize remote monitoring, on-site control, automatic control, temperature monitoring, single-point isolation and other functions, facilitates on-site maintenance and ensures personnel safety.

[0005] The utility model discloses a heating control device suitable for tunnel ice melting, which can realize remote monitoring, on-site control, automatic control, temperature monitoring, single-point isolation and other functions, facilitates on-site maintenance and ensures personnel safety.

[0006] The remote monitoring center includes industrial computer, server, communication module and monitoring software, the industrial computer is installed monitoring software, and the industrial computer is electrically connected with mouse, keyboard and display through interface; the industrial computer is remotely connected with the power distribution control cabinet through the communication module, the industrial computer is electrically connected with the server through interface, and the server is installed database; the remote monitoring center provides working voltage to the industrial computer through power supply lightning protection module and UPS unit from alternating current power supply; the UPS unit includes a output that provides working power supply to the communication module through power conversion module.

[0007] The power distribution control cabinet comprises a process control unit, an ambient temperature sensor, a communication module, a total protection switch, a contactor, a leakage protection switch, and a distribution terminal. The process control unit is electrically connected with the ambient temperature sensor through an isolation circuit and a signal processor to obtain the local ambient temperature. The process control unit is electrically connected with the communication module through a network interface, wherein the communication module comprises an Ethernet communication module and a serial bus communication module. The Ethernet communication module is connected with a remote monitoring center through a 4G channel, and the serial bus communication module is connected with a tunnel heating control box through a communication cable. The power distribution control cabinet and the tunnel heating control box are communicated. The total protection switch is a molded case circuit breaker, and has current overload and short circuit protection capabilities. After the box transformer power supply passes through the total protection switch, the power supply is supplied to the tunnel heating control box through a multi-path power supply lightning protection unit, the distribution terminal, a multi-path current / voltage detection module, a multi-path overload protection switch, and a multi-path contactor in sequence. The distribution terminal has one output to supply a power conversion module, and the power conversion module converts the voltage into different voltages required by each functional module. The multi-path current / voltage detection module provides voltage and current for each path of the tunnel heating control box. The process control unit realizes command receiving and command output control through a man-machine interface. A mode conversion module is connected between the contactor and the process control unit. The distribution terminal is an interface for power input and loop output of the power distribution control cabinet.

[0008] The tunnel heating control box comprises a CPU, a power conversion isolation module, a temperature sensor, a current sensor, a voltage sensor, a thyristor, a communication module, a man-machine interface, and a debugging / maintenance interface. The CPU is electrically connected with the ambient temperature sensor in the tunnel through the communication module. The CPU is also wirelessly connected with the power distribution control cabinet through the communication module. The input power is electrically connected with the input end of the power distribution control cabinet through a lightning protection unit and an overload protection unit. The working power supply is output to the tunnel heating plate through the power distribution control cabinet. There are multiple heating plates in the tunnel, which are distributed in the tunnel. The working of the multiple heating plates is controlled by the thyristors. The control end of the thyristor is electrically connected with the CPU through a driving circuit. The CPU drives the thyristor to turn on and turn off through the driving circuit to make the multiple heating plates work. Each heating plate has a temperature sensor for detecting the temperature of the heating plate. The temperature sensor is electrically connected with the CPU through an isolation circuit. Each heating plate has a current sensor and a voltage sensor in the electric heating circuit. The current sensor and the voltage sensor are electrically connected through an isolation circuit. The current sensor and the voltage sensor are used to detect the working voltage and current on the heating plate. When the heating plate appears short circuit or open circuit, the CPU cuts off the circuit and outputs an alarm. Further, the CPU is also connected with the man-machine interface and the debugging / maintenance interface through the interface.

[0009] The utility model discloses a tunnel ice melting system based on wireless network architecture, which comprises a remote monitoring center, a wireless communication module, a power distribution control cabinet and a tunnel heating control box.

[0010] The utility model will be further described below in combination with the embodiments and drawings. DRAWINGS

[0011] Figure 1 It is the structural schematic diagram of the utility model;

[0012] Figure 2 It is remote monitoring center 1 principle and connection relation diagram;

[0013] Figure 3 It is power distribution control cabinet 3 principle and connection relation diagram;

[0014] Figure 4 It is tunnel heating control box 4 principle diagram;

[0015] Figure 5 It is the heating control system control logic diagram of tunnel ice melting of the utility model.

[0016] In the drawing: 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, environmental temperature sensor. DETAILED DESCRIPTION

[0017] The embodiment of the utility model will be described in detail below in combination with the drawings and examples, so that the realization process of how to apply technical means to solve technical problems and achieve technical effects of the utility model is fully understood and implemented.

[0018] As Figure 1As shown, the utility model relates to a kind of heating control device suitable for tunnel ice melting, it is characterized by: it includes remote monitoring center 1, wireless communication module 2, distribution control cabinet 3, tunnel heating control box 4, drainage type radiant heating plate 5, heating plate temperature sensor 6, ambient temperature sensor 7 and the load power to the drainage type radiant heating plate 5 work;Remote monitoring center 1 is wirelessly networked with distribution control cabinet 3, tunnel heating control box 4 by wireless communication module 2;Load power is wirelessly connected with tunnel heating control box 4 by distribution control cabinet 3, tunnel heating control box 4 is wirelessly connected with drainage type radiant heating plate 5;Distribution control cabinet 3 and tunnel heating control box 4 have multiple ways respectively, distribution control cabinet 3 has 3-1, 3-2, 3-N respectively indicates, tunnel heating control box 4 has 4-1, 4-2, 4-N respectively, 3-1, 3-2, 3-N are corresponding with 4-1, 4-2, 4-N respectively;Every 4-1 or 4-2 or 4-N is connected with multiple drainage type radiant heating plate 5, heating plate temperature sensor 6.

[0019] Remote monitoring center 1 is used to communicate with multiple control cabinets through wireless network, and the working state, temperature, current, voltage, fault alarm and ambient temperature of the heating plate controlled by the connected control cabinet are monitored.

[0020] Heating on and off commands are sent to the control cabinet through wireless network.

[0021] Distribution control cabinet 3 is used to receive control commands from remote monitoring center 1, and send system working log and fault alarm information to remote monitoring center 1.

[0022] The working state, temperature detection and fault alarm information from tunnel heating control box 4 are received, and heating on and off commands are sent to tunnel heating control box 4, while the heating power is turned off and on.

[0023] Tunnel heating control box 4 is used to receive heating on and off commands from distribution control cabinet 3, collect the temperature of drainage type radiant heating plate 5, and turn on and off the power of heating plate according to the temperature of drainage type radiant heating plate 5 and heating threshold, and send working state, temperature detection and fault alarm information to distribution control cabinet 3.

[0024] Drainage type radiant heating plate 5 is installed at the water leakage point of the tunnel, used to heat the tunnel wall through radiant heat, and drain water to the designated point through drainage type radiant heating plate 5.

[0025] Ambient temperature sensor 7 is installed in distribution control cabinet 3, used to detect local ambient temperature as a judgment condition for heating.

[0026] A heating plate temperature sensor 6 is installed in the flow-type radiant heating plate 5 to detect the temperature of the flow-type radiant heating plate 5 as a heating determination condition.

[0027] The wireless communication module 2 is installed in the power distribution control cabinet 3, and serves as a data transmission channel between the power distribution control cabinet 3 and the remote monitoring center 1.

[0028] As shown in Figure 2 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 with a mouse, a keyboard, and a display through an interface. The industrial computer receives operation instructions and query commands from an operator through the mouse and the keyboard, remotely connects the power distribution control cabinet 3 through the communication module, receives data information of the power distribution control cabinet 3, and sends operation instructions to the power distribution control cabinet 3. The system working state, fault alarm information, and working log are displayed on the display. The industrial computer is electrically connected with the server through an interface, and the server is installed with a database. The system configuration information, working log, and fault information are stored in the database. The industrial computer is provided with working voltage by an AC power supply through a power lightning protection module and a UPS unit. The UPS unit includes a power conversion module, which provides working power to the communication module.

[0029] As shown in Figure 3 The power distribution control cabinet 3 includes a process control unit, an environmental temperature sensor 7, a communication module, a total protection switch, a contactor, a leakage protection switch, and a distribution terminal. 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 with the environmental temperature sensor 7 through an isolation circuit and a signal processor to obtain the local environmental temperature as the basis for heating on and off. The process control unit is electrically connected with the network interface of the communication module. The communication module includes an Ethernet communication module and a serial bus communication module. The Ethernet communication module is connected with the remote monitoring center 1 through a 4G channel, and the serial bus communication module is connected with the tunnel heating control box 4 through a communication cable, thereby realizing the communication between the power distribution control cabinet 3 and the tunnel heating control box 4. The total protection switch is a molded case circuit breaker, and has current overload and short circuit protection capabilities. After the box transformer power supply passes through the total protection switch, it is distributed to the tunnel heating control box 4 through a multi-path power lightning protection unit, the distribution terminal, a multi-path current / voltage detection module, a multi-path overload protection switch, and a multi-path contactor in sequence through an output interface. The distribution terminal has one output to supply the power conversion module, which converts the required different voltages to supply each functional module. The multi-path current / voltage detection module feeds back the voltage and current of each path provided to the tunnel heating control box 4 to the process CPU, which controls the load change of the tunnel heating control box 4, controls the overload protection switch and the contactor to be turned on at any time, and the overload protection switch and the contactor have dynamic signals provided to the process CPU at the same time.

[0030] The process control unit realizes command receiving and command output control through the human-computer interaction interface.

[0031] A mode conversion module is connected between the contactor and the process control unit to complete mode switching control. The contactor receives the command of the process control unit and turns on or off the power supply of the output loop.

[0032] The leakage protection switch prevents the output loop from being overloaded or leaking electricity. The branching terminal is the interface for the power access and loop output of the power distribution control cabinet 3.

[0033] As shown in Figure 4 The tunnel heating control box 4 includes a CPU, 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 CPU is electrically connected to the environmental temperature sensor in the tunnel through the communication module. The CPU is also wirelessly connected to the power distribution control cabinet 3 through the communication module. The input power is electrically connected to the input end of the power distribution control cabinet 3 through the lightning protection unit and the overload protection unit. The working power is output to the tunnel heating plate through the power distribution control cabinet 3. There are multiple heating plates in the tunnel, which are distributed in the tunnel. The working of the multiple heating plates is controlled by the thyristors. The control end of the thyristor is electrically connected to the CPU through a driving circuit. The CPU drives the thyristor to conduct and turn off through the driving circuit to make the multiple heating plates work. Each heating plate has a temperature sensor for detecting the temperature of the heating plate. The temperature sensor is electrically connected to the CPU through an isolation circuit. Each heating plate has a current sensor and a voltage sensor in the electric heating circuit. The current sensor and the voltage sensor are electrically connected through an isolation circuit, respectively. The current sensor and the voltage sensor are used to detect the working voltage and current on the heating plate. When the heating plate appears short circuit or open circuit, the CPU cuts off the circuit and outputs an alarm. Further, the CPU is also connected to the human-computer interaction interface and the debugging / maintenance interface through the interface.

[0034] The working voltage of the CPU is provided by the voltage output by the overload protection circuit through the power conversion circuit. The external total signal entering the CPU is connected to the I / O port of the CPU through an isolation circuit.

[0035] In summary, the heating control box 4 in the tunnel is electrically connected to the power distribution control cabinet 3 through the communication module, receives control commands and transmits them to the CPU (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 current sensor, and transmitted to the CPU (MCU); the CPU (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, manual heating operation is performed and its working status is observed through the human-computer interaction interface (buttons and LED indicator lights), maintenance equipment is connected through the maintenance interface for on-site debugging, the input interface is connected to the loop output interface of the power distribution control cabinet 3, and the output interface is connected to the heating plate to supply power to the heating plate.

[0036] like Figure 5 As shown, the present invention operates in 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 tunnel heating control box 4. When the system is on, each heating circuit in the power distribution control cabinet 3 has three control modes: manual off, manual heating, and automatic heating. When manually off, the closed circuit does not supply power to the connected tunnel heating control box 4, without affecting the normal operation of other circuits. When manually heating, the power distribution control cabinet 3 is in the heating on state and supplies power to the connected tunnel heating control box 4. The tunnel heating control box 4 turns heating on and off according to the collected heating plate temperature and the set heating parameters, and simultaneously records the operating status and fault information. When automatically heating, the power distribution control cabinet 3 opens and closes the control circuit based on the collected ambient temperature and the set heating on and off temperature limits. When the control circuit is on, power is supplied to the tunnel heating control box 4. The tunnel heating control box 4 turns heating on and off according to the collected heating plate temperature and the set heating parameters, and simultaneously records the operating status and fault information.

[0037] When the system is turned on, its workflow is:

[0038] 1) System startup;

[0039] 2) Detect whether the working mode is manual heating or automatic heating, and enter the corresponding working mode.

[0040] 3) Manual heating mode: when manually turned on, the device enters heating step 7; when manually turned off, the device stops heating and enters heating step 2);

[0041] 4) 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) and ambient temperature heating shut-off value (upper limit);

[0042] 5) When the ambient temperature is greater than the heating-off value (upper limit value), the power distribution control cabinet output loop is disconnected, the power supply to the tunnel heating control box is stopped, and the heating step 2) is entered;

[0043] 6) When the ambient temperature is greater than the heating-on value (lower limit value), the power distribution control cabinet output loop is connected, and the power supply to the tunnel heating control box is delivered;

[0044] 7) The tunnel heating control box detects the heating plate temperature value, and compares it with the preset heating plate temperature heating-on value (lower limit value) and the heating plate temperature heating-off value (upper limit value);

[0045] 8) When the heating plate temperature value is greater than the preset heating plate temperature heating-off value (upper limit value), the heating is stopped, and the step 2) is returned;

[0046] 9) When the heating plate temperature value is less than the preset heating plate temperature heating-on value (lower limit value), the heating is started, and the step 2) is returned.

[0047] The above is a further detailed description of the utility model in combination with a specific preferred embodiment, and the specific implementation of the utility model cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all of them should be regarded as falling within the protection scope of the utility model.

Claims

1. A heating control device for melting ice in a tunnel, characterized by: It comprises 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), an ambient temperature sensor (7), and a load power supply for the drainage type radiation heating plate (5); the remote monitoring center (1) is electrically connected to the power distribution control cabinet (3) and the tunnel heating control box (4) via a wireless communication module (2); the load power supply is electrically connected to the tunnel heating control box (4) via the power distribution control cabinet (3). The tunnel heating control box (4) is electrically connected to the drainage type radiation heating plate (5); the power distribution control cabinet (3) and the tunnel heating control box (4) are respectively provided with multiple channels, the power distribution control cabinet (3) is respectively represented by 3-1, 3-2, and 3-N, and the tunnel heating control box (4) is respectively provided with 4-1, 4-2, and 4-N, and 3-1, 3-2, and 3-N correspond to 4-1, 4-2, and 4-N respectively; each 4-1 or 4-2 or 4-N is respectively connected to the multiple channel drainage type radiation heating plate (5) and the heating plate temperature sensor (6).

2. The heating control device 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 the industrial computer is electrically connected to a mouse, a keyboard, and a display via an interface. The industrial computer is remotely connected to a power distribution control cabinet (3) via the communication module, and the industrial computer is electrically connected to the server via an interface, and the server is installed with a database. The remote monitoring center (1) is provided with a working voltage from an AC power supply through a power supply lightning protection module and a UPS unit. The UPS unit includes an output that provides working power to the communication module via a power conversion module.

3. The heating control device for tunnel ice melting according to claim 1, characterized in that: 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 branch terminal; the process control unit is electrically connected to the ambient temperature sensor (7) through an isolation circuit and a signal processor to obtain the local ambient temperature; the process control unit is electrically connected to the network interface of the communication module, 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 to realize the communication between the power distribution control cabinet (3) and the heating control box (4) in the tunnel; the main protection switch adopts a molded case circuit breaker, and the main protection switch has an electrical The box transformer power supply passes through the main protection switch, and then 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, the multi-way contactor, and then is supplied to the tunnel heating control box (4) through the output interface; the branch terminal has one output to supply the power conversion module, which is converted by the power conversion module into the required different voltages to supply each functional module; the multi-way current / voltage detection module will provide the voltage and current of each channel to the tunnel heating control box (4); the process control unit realizes command reception and command output control through the human-computer interaction interface; a mode conversion module is connected between the contactor and the process control unit; the branch terminal is the interface for power access and loop output of the distribution control cabinet (3).

4. The heating control device for tunnel ice melting according to claim 1, characterized in that: The tunnel heating control box (4) includes a CPU, 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 CPU is electrically connected to the ambient temperature sensor in the tunnel through the communication module, and the CPU is also wirelessly connected to the power distribution control cabinet (3) through the communication module. The input power is electrically connected to the input end of the power distribution control cabinet (3) through the lightning protection unit and the overload protection unit, and outputs working power to the heating plate in the tunnel through the power distribution control cabinet (3). There are multiple heating plates in the tunnel, which are distributed in the tunnel. The operation of the multiple heating plates is controlled by thyristors respectively. The thyristor control end is connected to the CPU through a drive circuit. Electrical connection, the CPU drives the thyristor to turn on and off through the driving circuit to make the multi-channel heating plates work. The multi-channel heating plates are respectively provided with temperature sensors, which are used to detect the temperature of the heating plates. The temperature sensors are electrically connected to the CPU through isolation circuits; each electric heating circuit of the heating plate is provided with a current sensor and a voltage sensor, which are electrically connected through isolation circuits; the current sensor and the voltage sensor are used to detect the working voltage and current on the heating plate. When a short circuit or an open circuit occurs on the heating plate, the CPU cuts off the circuit and outputs an alarm; further, the CPU is also connected to the human-computer interaction interface and the debugging / maintenance interface through the interface.

Images