Ice-resistant device for tunnel lining in cold region

Abstract

The utility model relates to the field of cold region tunnels, and discloses an ice-resistant device for a cold region tunnel lining, which comprises a carbon fiber electric heating sheet, a super-hydrophobic coating, a power regulator, a temperature sensor and a control terminal, the carbon fiber electric heating sheet is covered on a freeze injury position on the surface of the tunnel lining, and the super-hydrophobic coating is coated on the surface of the carbon fiber electric heating sheet; the temperature sensor is mounted at a freeze injury position; the power regulator is connected with a power supply and the carbon fiber electric heating sheet and regulates the output power of the carbon fiber electric heating sheet according to the temperature monitoring data; and the power regulator is also in communication connection with the control terminal to realize remote control. The device can monitor the temperature change of the tunnel in real time, control the output temperature of the carbon fiber electric heating sheet according to the temperature change, inhibit the generation of an ice layer on the surface of the lining, keep the temperature of a freeze injury position higher than 0 DEG C, prevent or delay the formation of freeze injury, improve the ice-resistant efficiency of the tunnel and reduce the deicing cost.

Description

Technical Field

[0001] The utility model relates to the field of cold region tunnels, in particular to an anti-icing device for cold region tunnel linings. Background Art

[0002] The freezing phenomenon on the lining surface caused by leakage water is a major hazard of tunnel engineering. Tunnel leakage seeps out through concrete cracks and accumulates into icicles at the seepage point due to the low temperature, resulting in frost damage. The frost damage formed in tunnels in cold regions will cause engineering problems such as frost heave, thaw settlement and freeze-thaw damage in tunnels in operation. With the rapid construction of my country's road network system, a large number of tunnels in cold regions are facing varying degrees of frost damage. Problems such as structural cracks, lining ice hanging, and pavement ice accumulation caused by frost damage in severe cold areas seriously threaten driving safety. And because the tunnel vault is high, when icicles fall, they will also form a large impact force that threatens the normal operation of the tunnel. The prevention and control of tunnel frost damage is an important task that must be paid attention to in road network maintenance work.

[0003] Ice hanging on the tunnel will cause the lining to swell and crack, or even loosen and peel off, causing instability and damage to the tunnel lining structure, reducing the safety and reliability of the lining structure, and seriously affecting the safety and normal operation of transportation. The existing solutions to the frost damage caused by tunnel leakage are mostly passive repair, improving construction methods, or grouting and sealing the water leakage parts as soon as possible to achieve the purpose of leakage prevention. Solving the problem of water leakage can improve the frost damage phenomenon to a certain extent, but the treatment method of water leakage is relatively complicated, which is not conducive to timely repair in actual conditions, and will affect the normal passage of the tunnel during the frost damage period.

[0004] At present, deicing of tunnel linings in cold regions is one of the passive repair solutions, which can be mainly divided into two methods: delaying the freezing of the lining surface or cleaning the frozen lining surface. Among them, the main methods for cleaning the frozen lining surface are: heating and melting ice in the tunnel, mechanical or manual vibration and knocking deicing, etc. This method will bring high maintenance costs to the operation of the tunnel after completion, and the management investment will increase as the frost damage gradually expands. At the same time, short-term heating and melting ice and mechanical vibration will disturb the soil of the tunnel in cold regions, which is not conducive to the prevention and control of tunnel frost damage. Deicing during the frost damage period will affect the normal passage of the tunnel, block traffic, and have a certain lag. The manual deicing method is less efficient and needs to pay attention to various power equipment such as contact networks, load-bearing cables and high-voltage lines, which are prone to dangerous accidents. Some tunnels with severe frost damage also need to arrange special personnel to clean up, which has a great impact on the normal operation of the tunnel. Among them, the main ways to delay surface icing are: heating the lining in the tunnel through combustion heat or electric heating to prevent water from freezing, laying an insulation layer during lining construction, setting up cold-proof doors to prevent heat exchange between the tunnel and the outside air, and coating the lining surface with a super-hydrophobic coating to reduce the adhesion of ice. The continuous heating method generates huge operating costs, and the setting of cold-proof doors more or less affects traffic efficiency. The application of insulation layers can only delay but not inhibit the freezing process. Water will still freeze under long-term low temperature conditions in cold areas. The durability of the lining coated with a super-hydrophobic coating is insufficient, and its anti-icing performance gradually decreases with the increase in the number of cleanings. Therefore, it is very necessary to implement anti-icing measures before ice and icing damage form on the lining surface.

[0005] In summary, in response to the above problems, it is necessary to invent an anti-icing device for tunnel lining in cold regions to effectively prevent and control tunnel frost damage. Utility Model Content

[0006] In view of the deficiencies of the existing technical solutions, the utility model aims to provide an anti-icing device for tunnel linings in cold regions, to solve the problem that it is difficult to cure the freezing of water leakage in the existing tunnel linings, and at the same time to provide an anti-freezing and deicing solution for tunnels in severe cold regions.

[0007] In view of the above problems, the technical solution adopted by the utility model is:

[0008] An anti-icing device for tunnel lining in cold regions, comprising a carbon fiber electric heater, a super hydrophobic coating, a power regulator, a temperature sensor, and a power supply;

[0009] The carbon fiber electric heating sheet is covered on the frozen position of the tunnel lining surface, and the super hydrophobic coating is coated on the surface of the carbon fiber electric heating sheet;

[0010] The temperature sensor is installed at the frozen position on the tunnel lining surface, and the temperature sensor is connected to the power regulator;

[0011] The input of the power regulator is connected to the power supply, and the output is electrically connected to the carbon fiber electric heating sheet.

[0012] Furthermore, the power regulator adjusts the output power of the carbon fiber electric heater according to a plurality of different operating gears based on the monitoring data of the temperature sensor; preferably, the power regulator is set with three different operating gears to regulate the output power of the carbon fiber electric heater, wherein the high gear is 90%-100% power output, the middle gear is 70%-80% power output, and the low gear is 50%-60% power output.

[0013] Furthermore, a temperature collector is provided in the power regulator, and the temperature collector is electrically connected to the temperature sensor to collect and display monitoring data of the temperature sensor.

[0014] Furthermore, the maximum output temperature of the carbon fiber electric heater is 60-70°C.

[0015] Furthermore, the carbon fiber heating plate is provided with a hollow drain port, which is circular or linear. The drain port is preferably arranged in the middle of the carbon fiber heating plate. The carbon fiber heating plate can melt ice caused by water leakage on the lining surface under different conditions, and the melted water flows out from the drain port.

[0016] Furthermore, the super hydrophobic coating is formed by applying one of nano silica super hydrophobic coating, acrylic super hydrophobic coating, and nano fluorosilicone super hydrophobic emulsion, and the particle size range of solute particles in the super hydrophobic coating is 19-20 nanometers, preferably 19 nanometers.

[0017] Furthermore, the super hydrophobic coating has a thickness of 9-10 microns, preferably 10 microns.

[0018] Furthermore, the distance between the temperature sensor and the frost-damaged position on the tunnel lining surface is not more than 25 cm, preferably not more than 20 cm, and the distance between the temperature sensor and the carbon fiber electric heater is not less than 5 cm.

[0019] An anti-icing device for tunnel lining in cold regions also includes a control terminal, which is communicatively connected to a power regulator, receives signals from the power regulator and displays temperature monitoring data and an operating gear of the power regulator, and regulates the operating gear of the power regulator according to the temperature monitoring data communication.

[0020] A method for using an anti-icing device for cold region tunnel lining is as follows:

[0021] First, determine the frost-damaged locations on the tunnel lining surface based on tunnel engineering data, cover the frost-damaged locations with carbon fiber electric heaters, and apply a super-hydrophobic coating on the outer surface of the carbon fiber electric heaters. Install temperature sensors at the frost-damaged locations, install power regulators and power supplies in the tunnel, and install control terminals outside the tunnel entrance. The temperature sensors monitor the surface temperature of the tunnel lining in real time, and the control terminals adjust the operating gear of the power regulator based on the temperature monitoring data, so that the carbon fiber electric heaters can heat the frost-damaged locations to resist ice at different output powers.

[0022] Compared with the prior art, the utility model has the following beneficial technical effects:

[0023] 1) The utility model arranges a carbon fiber electric heater at the location where frost damage occurs, monitors the temperature change of the tunnel through a temperature sensor during the period of frost damage, thereby judging the icing situation on the lining surface, and controls the output temperature of the carbon fiber electric heater according to the temperature change, thereby suppressing the formation of ice layer on the lining surface, and keeping the temperature at the location where frost damage occurs above 0°C, thereby preventing the formation of frost damage or delaying the formation of frost damage; the utility model also coats the surface of the carbon fiber electric heater with a super-hydrophobic coating, which can quickly drain away the water leakage on the surface of the carbon fiber electric heater or the water generated by ice melting, thereby further avoiding the occurrence of frost damage; the utility model adopts a power regulator to regulate the output power of the carbon fiber electric heater, and adopts a replaceable power supply to power the power regulator and the carbon fiber electric heater, which is easy to use;

[0024] 2) This device can solve the time lag problem caused by deicing or delaying icing, effectively prevent the formation of ice cones on the tunnel lining surface, and can adjust the output power in real time according to the temperature to avoid energy waste. At the same time, the device occupies a small space and will not hinder the normal passage of the tunnel; this device can save labor costs, improve anti-icing efficiency, and maintain the normal operation of the tunnel. There is no need to implement tunnel closures to block traffic during deicing. Starting from the aspect of anti-icing suppression, it suppresses and prevents the formation of frost damage from the root. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the connection between the carbon fiber heater and the power regulator.

[0026] Figure 2 This is a cross-sectional diagram of the installation of anti-icing devices in the tunnel.

[0027] Figure 3 Schematic diagram of the tunnel frost damage location and control terminal.

[0028] Figure 4 Schematic diagram of anti-icing device signal transmission.

[0029] In the figure: 1-carbon fiber electric heater; 2-superhydrophobic coating; 3-power regulator; 4-temperature sensor; 5-power supply; 6-control terminal; 7-freezing damage location; 8-tunnel lining; 9-drainage outlet. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] See also Figure 1-4 ;

[0032] An anti-icing device for cold-region tunnel linings is a preferred embodiment of the utility model, comprising a carbon fiber electric heater 1, a super-hydrophobic coating 2, a power regulator 3, a temperature sensor 4, and a power supply 5. The carbon fiber electric heater 1 is covered on a frozen position 7 on the surface of a tunnel lining 8, and the super-hydrophobic coating 2 is coated on the surface of the carbon fiber electric heater 1; the temperature sensor 4 is installed on the frozen position 7 on the surface of the tunnel lining 8; the input of the power regulator 3 is connected to the power supply 5, and the output is electrically connected to the carbon fiber electric heater 1.

[0033] The power regulator 3 is provided with a temperature collector, which is electrically connected to the temperature sensor 4 to collect and display the monitoring data of the temperature sensor; the power regulator 3 adjusts the output power of the carbon fiber electric heater according to a plurality of different operating gears according to the monitoring data of the temperature sensor; preferably, the power regulator is provided with three different operating gears to adjust the output power of the carbon fiber electric heater, wherein the high gear is 90%-100% power output, the middle gear is 70%-80% power output, and the low gear is 50%-60% power output; the power regulator can be automatically controlled or manually controlled. When manual control is adopted, the power regulator 3 is installed in a position that can be touched by humans, such as The location of the tunnel maintenance channel; in a specific embodiment, the first gear output power is 8W (corresponding to the output temperature of the carbon fiber electric heater 1 of about 60°C), the second gear output power is 6W (corresponding to the output temperature of the carbon fiber electric heater 1 of about 50°C), and the third gear output power is 4W (corresponding to the output temperature of the carbon fiber electric heater 1 of about 35°C); when the power regulator is set to three different operating gears, the power regulator 3 can be regulated in the following manner: when the temperature is greater than 2°C, stop running; when the temperature is in the range of [2°C, -5°C], it is low-gear operation; when the temperature is in the range of (-5°C, -10°C], it is mid-gear operation; when the temperature is less than -10°C, it is high-gear operation.

[0034] The power supply 5 supplies power to the carbon fiber electric heater 1 and the power regulator 3. An easily detachable and replaceable power supply 5, such as a battery, is selected. The power regulator 3 regulates the output power of the carbon fiber electric heater 1. The power supply 5 is preferably installed in a position in the tunnel that is easily accessible to humans, such as the location of the tunnel maintenance passage.

[0035] A hollow circular or linear drain port 9 is provided in the middle of the carbon fiber electric heater 1. After the carbon fiber electric heater 1 starts to heat up, it can melt the ice caused by water leakage in different situations on the surface of the tunnel lining 8, and the melted water flows out from the drain port 9. The carbon fiber electric heater 1 is powered by a power supply 5 and regulated by a power regulator 3 to achieve the purpose of anti-icing. The carbon fiber material has the characteristics of long service life and not easy to oxidize, and the carbon fiber electric heater 1 has many advantages such as stable working efficiency, high thermal efficiency, and energy saving. At present, the carbon fiber electric heater 1 has a variety of models and sizes such as 8cm*14cm and 6.5cm*11cm to choose from, and the carbon fiber electric heater 1 can be selected for single use or combination use to be suitable for different freezing damage situations. The maximum output temperature of the carbon fiber electric heater 1 is 60-70℃.

[0036] Super hydrophobic coating 2 is formed by brushing with nano silicon dioxide super hydrophobic coating, and the particle size range of nano silicon dioxide particles is 19-20 nanometers, preferably 19 nanometers; Coating thickness is 10 microns. Nano silicon dioxide super hydrophobic coating 2 is curable in about 3 hours at room temperature, can withstand 150 DEG C of high temperature, and it is feasible to apply it to carbon fiber electric heater 1. Under the condition of carbon fiber electric heater 1 surface clean and dry, after the carbon fiber electric heater 1 surface is formed with super hydrophobic coating 2 by spraying or soaking, carbon fiber electric heater 1 (the other side) is installed with tunnel lining 8 surface, tunnel seepage water and water melted after freezing damage are discharged, so as to effectively resist ice on tunnel lining 8 surface. Super hydrophobic coating 2 is coated on carbon fiber electric heater 1 surface by the utility model, and direct contact of super hydrophobic coating 2 with tunnel lining 8 surface is avoided, and the durability of super hydrophobic coating 2 can be improved. The super hydrophobic coating 2 may be made of materials such as nano-silicon dioxide super hydrophobic coating, acrylic super hydrophobic coating, nano-fluorosilicone super hydrophobic emulsion, etc., in addition to nano-silicon dioxide super hydrophobic coating.

[0037] The temperature sensor 4 is used to monitor the temperature of the frozen position 7 of the tunnel. The lining surface near the frozen position 7 can also represent the temperature of the frozen position. Therefore, the installation position of the temperature sensor 4 is relatively flexible, but it should avoid the position of the carbon fiber electric heater 1 and should not be too far away from the frozen position. It is recommended that the distance between the temperature sensor 4 and the frozen position 7 should not exceed 25 cm, and it is preferably installed within 20 cm from the frozen position. The distance between the temperature sensor and the carbon fiber electric heater is not less than 5 cm.

[0038] As a further improvement of this embodiment, the anti-icing device also includes a control terminal 6, which is arranged outside the tunnel entrance and is connected to the power regulator 3; the communication method is preferably wireless communication, and wired communication can also be used. Currently, commonly used wireless communication methods include Bluetooth, WLAN and LORA, among which the transmission distance of LORA technology can reach up to 5km, and it supports free networking. LORA can withstand high concurrent data transmission and has low power consumption. When wireless communication is adopted, wireless communicators are provided in the power regulator 3 and the control terminal 6 for signal transmission. The temperature collector in the power regulator 3 receives the temperature monitoring data from the temperature sensor, which is transmitted to the wireless communicator in the control terminal 6 through the wireless communicator in the power regulator. After the control terminal 6 receives the temperature monitoring data, the temperature monitoring data of the temperature sensor 4 can be displayed, and the operating gear of the power regulator 3 can be adjusted according to the temperature monitoring data. The control command is then transmitted to the power regulator through the communicators of both parties. At the same time, the control terminal 6 can also display the operating gear of the power regulator 3. When the power regulator sets three different operating gears, the control mode of the operating gear output instruction in the control terminal 6 is: when the temperature is greater than 2°C, stop running; when the temperature is in the range of [2°C, -5°C], it is low gear operation; when the temperature is in the range of (-5°C, -10°C], it is medium gear operation; when the temperature is less than -10°C, it is high gear operation; the temperature range of [2°C, -5°C] when running at low gear is selected to prevent the equipment from not running when the actual temperature is lower than 0°C due to the influence of temperature error. Properly raising the minimum standard of operating temperature can ensure that the temperature at the place prone to frost damage is higher than 0°C; specifically, the control terminal 6 includes at least three parts, one part is a PLC control circuit, one part is a touch screen, and another part is a wireless communicator. The touch screen can display temperature monitoring data, the current operating gear, and preferably also the remaining power of the power supply, and can even provide hardware support for manually switching the operating gear. The PLC control circuit can automatically output the operating gear control instruction to the power regulator according to the above method based on the temperature monitoring data, so that both manual control and automatic control modes can be taken into account.

[0039] The device of the utility model can be used in both newly built tunnels and operating tunnels. For operating tunnels, the device can be installed in non-freezing seasons or in freezing seasons. In freezing seasons, deicing is required before installation. The main purpose of the device is to prevent freezing damage or effectively delay the formation of freezing damage.

[0040] A method for using an anti-icing device for cold region tunnel lining is as follows:

[0041] First, the frozen position 7 on the surface of the tunnel lining 8 is determined according to the tunnel engineering data, the carbon fiber electric heating plate 1 is covered at the frozen position, and the super-hydrophobic coating 2 is coated on the outer surface of the carbon fiber electric heating plate 1, and the temperature sensor 4 is installed at the frozen position 7, the power regulator 3 and the power supply 5 are installed in the tunnel, and the control terminal 6 is installed outside the tunnel entrance, and it is checked whether the whole device can work effectively; the temperature sensor 4 monitors the surface temperature of the tunnel lining 8 in real time, and the control terminal 6 adjusts the operating gear of the power regulator 3 according to the temperature monitoring data. The power regulator 3 operates at different gears, so that the carbon fiber electric heating plate 1 heats the frozen position 7 to resist ice at different output powers. Specific embodiment one;

[0043] For tunnels operating in freezing seasons, when using this device, it is necessary to first find the locations on the tunnel lining surface where freezing damage (water leakage) has occurred or is likely to occur, such as Figure 3. According to the geometric characteristics of the frost damage position, the type of carbon fiber electric heating plate 1 is determined, and the drain port 9 on the carbon fiber heating plate 1 is selected as a linear drain port 9. After determining the selected type, the ice hanging and the remaining broken ice near the surface of the position where the frost damage has been formed are first manually or mechanically removed, and then the carbon fiber electric heating plate 1 is coated with nano-silicon dioxide super-hydrophobic coating to form a super-hydrophobic coating 2, and the carbon fiber electric heating plate 1 is used alone or in combination to cover the surface of the tunnel lining. The surface of the carbon fiber electric heating plate coated with the super-hydrophobic coating is used as the outer surface, and the other side of the carbon fiber electric heating plate is glued to the surface of the tunnel lining 8 to ensure that the frost damage position 7 is completely covered and the coverage of the carbon fiber electric heating plate 1 is preferably expanded to a part of the periphery of the frost damage position 7. The drain port 9 is placed at the leakage position to ensure the discharge of the leakage water on the lining surface, reduce the further damage of the leakage water to the surface of the tunnel lining 8, and prevent the freeze-thaw cycle caused by temperature fluctuations to ensure the suppression of frost damage. After the carbon fiber electric heating sheet 1 is coated, the power regulator 3 and the power supply 5 can be installed together in the tunnel; different frost damage positions are installed according to the above method, and the control terminal 6 is installed outside the tunnel entrance. After the installation is completed, the control terminal 6 is manually controlled to make the power regulator 3 switch the three-speed power mode to monitor whether the device can operate normally. After confirming that the operation is normal, the power gear can be switched automatically. The real-time tunnel lining 8 temperature monitoring information and the current operating gear can be viewed on the control terminal 6, and the operating gear of the power regulator 3 can be switched in the control terminal by manual control or automatic control according to the temperature range where the actual temperature monitoring information is located. Of course, the operating gear of the power regulator 3 can also be directly adjusted according to the display data of the temperature collector inside the tunnel, but it is inconvenient to enter the tunnel for adjustment, which is usually used as an alternative. In the case of long-term operation, the normal operation of the device can be ensured by real-time monitoring. The power supply 5 uses a high-power battery for power supply and is installed at the location of the tunnel maintenance channel. The battery can be replaced regularly and maintained for a long time. The control terminal 6 can view the remaining power of the power supply 5 in real time, which is convenient for timely replacement to ensure sufficient power. Specific embodiment 2;

[0045] For tunnels in seasonal freezing zones or newly built tunnels, when applying this device, the parts prone to freezing damage in the tunnel can be surveyed in advance or the parts prone to freezing damage can be determined according to the existing engineering data of the tunnel, and the installation and detection of this device can be carried out in advance before the freezing season. According to the geometric characteristics of the freezing damage position, the type of carbon fiber electric heater 1 is determined, and the parts prone to freezing damage and the types of carbon fiber electric heater 1 are determined to be used alone or in combination. Super hydrophobic coating 2 is applied to the outer surface of the carbon fiber electric heater 1, and the other side of the carbon fiber electric heater 1 is covered on the surface of the tunnel lining 8, and the power regulator 3 and power supply 5 are installed in the tunnel, and the control terminal 6 is installed outside the tunnel entrance. After the installation is completed, the operation detection of the equipment is carried out, and after confirming that the operation is normal, since the freezing damage formation period has not yet begun, the power regulator 3 can be shut down. After entering the freezing damage occurrence period, the temperature sensor 4 monitors the surface temperature of the tunnel lining 8, and the control terminal 6 adjusts the operating gear of the power regulator 3 according to the temperature monitoring data, and the power regulator 3 is turned on and operated, thereby controlling the output temperature of the carbon fiber electric heater 1, so as to achieve the purpose of anti-ice and anti-freezing damage. In the case of long-term operation of the device, the operating status of the device in the tunnel can be monitored through the control terminal 6, and adjustments can be made according to the actual situation. In addition, the remaining power of the power supply 5 can also be monitored to prevent the power supply 5 from being unable to operate normally due to low temperature. The power supply 5 can be replaced regularly and long-term maintenance can be performed.

[0046] The above description is only used to illustrate the technical solution of the utility model and is not intended to limit it. Any modifications or substitutions made to the technical solution by other technicians in this professional field should be included in the scope of the claims of the utility model as long as they do not deviate from the connotation of the technical solution of the utility model.

Claims

1. An anti-icing device for tunnel lining in cold regions, characterized in that: Including carbon fiber electric heater, super hydrophobic coating, power regulator, temperature sensor, power supply; The carbon fiber electric heating sheet is covered on the frozen position of the tunnel lining surface, and the super hydrophobic coating is coated on the surface of the carbon fiber electric heating sheet; The temperature sensor is installed at the frozen position on the tunnel lining surface, and the temperature sensor is connected to the power regulator; The input of the power regulator is connected to the power supply, and the output is electrically connected to the carbon fiber electric heating sheet.

2. The anti-icing device according to claim 1, characterized in that: The power regulator adjusts the output power of the carbon fiber electric heater according to the monitoring data of the temperature sensor according to a plurality of different operating gears.

3. The anti-icing device according to claim 2, characterized in that: The power regulator is also provided with a temperature collector which is electrically connected to the temperature sensor to collect and display monitoring data of the temperature sensor.

4. The anti-icing device according to claim 3, characterized in that: The maximum output temperature of the carbon fiber electric heater is 60-70°C.

5. The anti-icing device according to claim 4, characterized in that: The carbon fiber electric heating plate is provided with a hollow water drain port, and the water drain port is circular or linear.

6. The anti-icing device according to claim 4, characterized in that: The super hydrophobic coating is formed by brushing with one of nano silicon dioxide super hydrophobic coating, acrylic acid super hydrophobic coating and nano fluorosilicone super hydrophobic emulsion, and the particle size range of solute particles in the super hydrophobic coating is 19-20 nanometers.

7. The anti-icing device according to claim 4, characterized in that: The super hydrophobic coating has a thickness of 9-10 microns.

8. The anti-icing device according to claim 4, characterized in that: The distance between the temperature sensor and the frozen position on the tunnel lining surface is no more than 25 cm, and the distance between the temperature sensor and the carbon fiber electric heating plate is no less than 5 cm.

9. The anti-icing device according to any one of claims 4 to 8, characterized in that: It also includes a control terminal, which is connected to the power regulator for communication, receives signals from the power regulator, displays temperature monitoring data and the operating position of the power regulator, and adjusts the operating position of the power regulator according to the temperature monitoring data.

Images