Movable heating device for winter construction of tunnel in cold region

Abstract

The utility model discloses a movable heating device for winter construction of a tunnel in a cold region, which is mainly applied to the technical field of heating equipment and comprises a boosting module, a control chip, a PTC (Positive Temperature Coefficient) heating sheet, a heating rod, a carriage, a control box and a water tank, a handle is arranged at the top of one side of the carriage, wheels are arranged at the bottom of the carriage, heating radiators are detachably connected to four walls of the carriage, and the carriage is a hollow box body. The top can be opened; the top of the water tank is provided with a hot water port, and the bottom of the water tank is provided with a water return port and a heating rod; the top of the water tank is detachably connected with a control box, the control box is composed of a box body, a boosting module, a control chip, a PTC heating piece, a power input port and a power output port, and the boosting module and the control chip are arranged at the bottom of the box body. The movable heating device for winter construction of the tunnel in the cold region is convenient to operate, can be movably used, can be used in a complex tunnel environment, is high in adaptability, safe, reliable, energy-saving and environment-friendly, and can provide a comfortable working environment for operators.

Description

Technical Field

[0001] This utility model relates to the field of heating equipment technology, specifically to a mobile heating device for winter construction of tunnels in cold regions. Background Technology

[0002] According to tunnel construction safety and electrical safety regulations, the use of ordinary electric heaters for heating is strictly prohibited during tunnel construction operations. The main reasons are as follows: I. Safety Risks. 1. Fire Risk: Electric heaters are high-power heating devices. Tunnels often contain flammable materials (such as oil, waterproofing materials, cable insulation, etc.), and ventilation is limited. Overheating or short circuits can easily cause fires. 2. Suffocation and Poisoning Due to Insufficient Ventilation. The enclosed space inside a tunnel means electric heaters will increase oxygen consumption. If ventilation is poor, it may cause oxygen deficiency or carbon monoxide accumulation among construction workers (especially when internal combustion equipment is present). 3. Electrical Safety Hazards: The damp environment in tunnels can easily lead to insulation failure and leakage in electric heaters, causing electric shock accidents. II. Violation of Construction Regulations. 1. The use of open flames and non-explosion-proof electric heating equipment is strictly prohibited. Safety regulations clearly stipulate that open flames are not allowed for heating in tunnels, and ordinary electric heaters do not meet explosion-proof and waterproof requirements, making them illegal equipment. 2. Voltage Level Restrictions: Damp areas within the tunnel require the use of safe voltages (such as 36V, 24V, or even 12V). Ordinary electric heaters typically require 220V power; exceeding these standards increases the risk. 3. Power Load Restrictions: The total load for tunnel power usage must be strictly calculated. Temporarily adding high-power equipment may cause line overload tripping, affecting the operation of critical systems such as ventilation and lighting.

[0003] Application No. 2010206028582 discloses a heating stove, specifically a heating stove for use in tunnel construction during winter. This invention solves the problems of low average effective utilization rate of heat generated by existing radiator-equipped water-cooled boilers, resulting in significant energy waste; increased construction costs due to the need to increase the number of radiators and boilers to ensure heating area; and wasted time and manpower. This invention includes a combustion furnace body, a heat source furnace body, a fan, and multiple hot air delivery pipes. The combustion furnace body is located inside the heat source furnace body, forming a sealed air cavity between them. The fan is located at the lower end of the heat source furnace body, and its outlet is connected to the sealed air cavity. Multiple hot air delivery pipes are installed at the upper end of the heat source furnace body, and each hot air delivery pipe is connected to the sealed air cavity. This invention is used for heating inside tunnels during winter construction.

[0004] While the above technical solutions can solve the heating problem during tunnel construction in winter, the following problems still exist: 1. Limited use: The air composition inside the tunnel is complex, and when there are flammable and explosive gases in the air, open flame heating equipment can easily cause safety accidents; 2. High safety risks: Open flame heating equipment consumes a lot of oxygen, which can easily cause asphyxiation or carbon monoxide poisoning accidents, and other flammable materials can easily be ignited; 3. Difficult to move, limiting the heating range. Utility Model Content

[0005] This utility model proposes a mobile heating device for winter construction of tunnels in cold regions, which solves the problems of limited use, high safety risks, and difficulty in moving existing winter tunnel heating devices.

[0006] The technical solution of this utility model is as follows: a mobile heating device for winter construction of tunnels in cold regions, comprising a booster module, a control chip, a PTC heating element, a heating rod, a carriage, a control box, and a water tank. The carriage has a handle (101) on the top of one side and wheels on the bottom. Radiators are detachably connected to the four walls of the carriage. The carriage is a hollow box with an openable top. The carriage contains a water tank with a hot water inlet on the top and a return water inlet and a heating rod at the bottom. A control box is detachably connected to the top of the water tank. The control box consists of a box body, a booster module, a control chip, a PTC heating element, a power input port, and a power output port. The booster module and control chip are located at the bottom of the box body, the PTC heating element is on the side wall, and the power input port and power output port are on the top. The booster module, control chip, PTC heating element, power input port, power output port, and heating rod are electrically connected. The hot water inlet is connected to the inlet of the radiator, and the outlet of the radiator is connected to the return water inlet. In this embodiment, the control chip is existing technology, and mature products can be purchased from the market, such as the radiator controller disclosed in application number 2020204647558. The temperature acquisition module is electrically connected to the input terminal of the main control chip. The temperature acquisition module is installed at the air outlet of the radiator to transmit the acquired temperature signal to the main control chip. The output terminal of the main control chip is electrically connected to multiple fan control modules, and each fan control module is connected to one radiator fan. The main control chip controls the on and off of multiple fan control modules according to the temperature signal. Based on the above description, those skilled in the art can apply the relevant technology to this utility model without any technical obstacles.

[0007] Preferably, the hot water outlet has four branch pipes, each branch pipe has a solenoid valve and a water pump, the solenoid valve and water pump are electrically connected to the control chip, and the lower part of the radiator has a temperature sensor, which is electrically connected to the control chip.

[0008] Preferably, the housing and the water tank are directly coated with thermal grease, the inner wall of the housing has a fan, the fan is electrically connected to the control chip, and the top and side walls of the housing have ventilation openings.

[0009] Preferably, the outer wall of the water tank is covered with thermal insulation material.

[0010] Preferably, the four walls of the carriage are covered with heat-conducting covers, and aluminum foil is pasted on the four walls of the carriage.

[0011] Preferably, the carriage and water tank are made of stainless steel.

[0012] Preferably, the water tank has a water inlet at the top and a drain outlet at the bottom.

[0013] Preferably, the boost module and control chip are waterproofed.

[0014] The principle of this utility model: To solve the problems of limited use, high safety risks, and difficulty in moving existing winter tunnel construction heating devices, this utility model achieves this through the following technical solution: This utility model adopts a combination of electric heating and water heating. Radiators are installed on the four sides of the outer wall of the carriage. There is a water tank inside the carriage, with heating rods at the bottom of the tank to heat the heat-conducting medium, purified water. There is a hot water outlet at the top of the tank. A water pump pumps hot water into the inlet of the radiators. After heat exchange, the water temperature drops and flows out from the outlet of the radiator. It then re-enters the water tank through the return outlet. Due to the influence of temperature on water density, cold water accumulates at the bottom of the tank. After being heated by the heating rods, the hot water rises to the top of the tank and re-enters the radiators through the hot water outlet to complete another heat exchange, converting electrical energy into heat energy. The hot water outlet has four branch pipes, which are connected to the four radiators respectively. Electric... The solenoid valve can independently control the operation of four radiators. The heating rods are powered by an external low-voltage power supply, which is boosted by a boost module. The low-voltage power supply is connected to the power input port, which is connected to the boost module. The boosted power is output from the power output port, which is connected to the heating rods. To ensure the normal operation of the boost module and control chip in the control box and to avoid the effects of high humidity in the tunnel, the PTC heating element in the control box is activated during the preheating stage of the heating device. The heat generated dries the moisture in the control box, and the moisture is exhausted by a fan through the ventilation openings on the top and side walls of the control box, keeping the control box dry and ensuring stable operation of the device. The control chip is existing technology, and mature products can be purchased from the market. The control chip is powered by an external low-voltage power supply and mainly controls the working status of the heating rods, PTC heating elements, fans, solenoid valves, and temperature sensors to realize functions such as heating, dehumidification, and heat supply.

[0015] The beneficial effects of this utility model are as follows: A mobile heating device for winter construction of tunnels in cold regions is easy to operate, portable, can be used in complex tunnel environments, has strong adaptability, is safe and reliable, energy-saving and environmentally friendly, and can provide a comfortable working environment for workers. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the water tank and control box of this utility model;

[0019] Figure 4 This is a top view of the water tank and control box of this utility model;

[0020] In the diagram, 100-carriage, 101-handle, 102-wheel, 103-radiator, 200-control box, 201-box body, 202-boost module, 203-PTC heating element, 204-power input port, 205-power output port, 206-ventilation vent, 300-water tank, 301-hot water inlet, 302-heating rod, 303-return water inlet. Detailed Implementation

[0021] The specific implementation method of this utility model is as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a mobile heating device for winter construction of tunnels in cold regions includes a booster module 202, a control chip, a PTC heating element 203, a heating rod 302, a carriage 100, a control box 200, and a water tank 300. The carriage 100 has a handle 101 on one side of its top and wheels 102 on its bottom. Radiators 103 are detachably connected to the four walls of the carriage 100. The carriage 100 is a hollow box with an openable top. The carriage 100 contains a water tank 300, with a hot water inlet 301 on its top, a return water inlet 303 and a heating rod 302 on its bottom. The control box 200 is detachably connected to the top of the water tank 300. The control box 200 consists of a box body 201, a boost module 202, a control chip, a PTC heating element 203, a power input port 204, and a power output port 205. The boost module 202 and the control chip are located at the bottom of the box body 201, the PTC heating element 203 is located on the side wall, and the power input port 204 and the power output port 205 are located at the top. The boost module 202, the control chip, the PTC heating element 203, the power input port 204, the power output port 205, and the heating rod 302 are electrically connected. The hot water outlet 301 is connected to the inlet of the radiator 103, and the outlet of the radiator 103 is connected to the return water outlet 303.

[0022] Specifically, such as Figure 3 As shown, the hot water inlet 301 has four branch pipes, each with a solenoid valve and a water pump. The solenoid valves and water pumps are electrically connected to a control chip. A temperature sensor is located at the bottom of each radiator 103, and this temperature sensor is also electrically connected to the control chip. In this embodiment, the solenoid valves and water pumps control the operating status of the four radiators 103, reducing energy consumption and promoting energy conservation and environmental protection.

[0023] Specifically, the housing 201 and the water tank 300 are directly coated with thermally conductive silicone grease. A fan is located on the inner wall of the housing 201, and the fan is electrically connected to the control chip. Ventilation openings 206 are located on the top and side walls of the housing 201. In this embodiment, the heat emitted from the water tank 300 drives away moisture inside the housing 201, ensuring stable operation of the heating device. Furthermore, the boost module 202 and the control chip should be mounted overhead to avoid damage from high temperatures, and proper heat dissipation measures should be implemented.

[0024] Specifically, the outer wall of the water tank 300 is covered with insulation material. In this embodiment, the water tank 300 is insulated to avoid heat loss and wasted electrical energy.

[0025] Specifically, the four walls of the carriage 100 are equipped with heat-conducting covers, and aluminum foil is pasted onto the four walls of the carriage 100. In this embodiment, the heat-conducting covers and aluminum foil can radiate heat in a directional manner, improving the heating effect.

[0026] Specifically, the carriage 100 and water tank 300 are made of stainless steel. In this embodiment, the stainless steel carriage 100 and water tank 300 are not easily corroded in the complex environment of the tunnel and have a long service life.

[0027] Specifically, the water tank 300 has a water inlet at the top and a drain outlet at the bottom. In this embodiment, the water inlet and drain outlet facilitate the filling and emptying of water by users, and make it easy to move the heating device out of the tunnel.

[0028] Specifically, the boost module 202 and the control chip are waterproofed. In this embodiment, the boost module 202 and the control chip can be immersed in waterproof adhesive to prevent short circuits caused by moisture and ensure stable operation of the heating device.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mobile heating device for winter construction of tunnels in cold regions, comprising a booster module (202), a control chip, a PTC heating element (203), and a heating rod (302), characterized in that: It also includes a carriage (100), a control box (200), and a water tank (300). The carriage (100) has a handle (101) on one side of the top and wheels (102) at the bottom. The four walls of the carriage (100) are detachably connected to radiators (103). The carriage (100) is a hollow box with an openable top. The carriage (100) contains a water tank (300). The water tank (300) has a hot water outlet (301) at the top and a return water outlet (303) and a heating rod (302) at the bottom. The top of the water tank (300) is detachably connected to the control box (200). The control box (200) consists of a box body (201) and a booster module (202). The box (201) is composed of a control chip, a PTC heating element (203), a power input port (204), and a power output port (205). The bottom of the box (201) has a boost module (202) and a control chip, the side wall has a PTC heating element (203), and the top has a power input port (204) and a power output port (205). The boost module (202), control chip, PTC heating element (203), power input port (204), power output port (205), and heating rod (302) are electrically connected. The hot water port (301) is connected to the water inlet of the radiator (103), and the water outlet of the radiator (103) is connected to the water return port (303).

2. The mobile heating device for winter construction of tunnels in cold regions according to claim 1, characterized in that: The hot water inlet (301) has four branch pipes, each with a solenoid valve and a water pump. The solenoid valve and water pump are electrically connected to the control chip. The radiator (103) has a temperature sensor at its lower part, which is electrically connected to the control chip.

3. The mobile heating device for winter construction of tunnels in cold regions according to claim 1, characterized in that: The box (201) and the water tank (300) are directly covered with thermal grease. The inner wall of the box (201) has a fan, which is electrically connected to the control chip. The top and side walls of the box (201) have ventilation openings (206).

4. The mobile heating device for winter construction of tunnels in cold regions according to claim 1, characterized in that: The outer wall of the water tank (300) is covered with thermal insulation material.

5. A mobile heating device for winter construction of tunnels in cold regions according to claim 1, characterized in that: The four walls of the carriage (100) are covered with heat-conducting covers, and aluminum foil is pasted on the four walls of the carriage (100).

6. A mobile heating device for winter construction of tunnels in cold regions according to claim 1, characterized in that: The carriage (100) and water tank (300) are made of stainless steel.

7. A mobile heating device for winter construction of tunnels in cold regions according to claim 1, characterized in that: The water tank (300) has a water inlet at the top and a drain outlet at the bottom.

8. A mobile heating device for winter construction of tunnels in cold regions according to claim 1, characterized in that: The boost module (202) and control chip are waterproofed.

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