A mobile high-precision temperature control spraying device for high-temperature tunnel concrete

Abstract

The application discloses a kind of mobile high-precision temperature control spray equipment for high-temperature tunnel concrete, including movable vehicle body, and the vehicle body is equipped with spray module;The spray module is connected with high-pressure water source and spray pipe, and the water outlet of the spray pipe is connected with pressure nozzle, and the high-pressure water source passes through spray module and inputs high-pressure water into spray pipe, when water does not fill spray pipe, pressure nozzle is in closed state, and spray pipe is filled with water in spray pipe time.This application uses mobile spray to spray and maintain concrete, which can reduce the installation cost of a large number of pipelines on site, and does not need to set up a separate water temperature room. The high-temperature environment tunnel has more stringent requirements for concrete cooling, and cannot meet the pipeline layout requirements during tunnel excavation construction period, which greatly reduces the concrete maintenance cost. The equipment can be placed outside the construction operation periphery, and real-time spraying can be carried out by directly reading the thermometer data installed in the hole.

Description

Technical Field

[0001] This invention relates to the field of concrete curing equipment technology, and in particular to a mobile, high-precision temperature-controlled spraying device for high-temperature tunnel concrete. Background Technology

[0002] In conventional high-temperature environments, concrete temperature control relies on manual or mechanical readings to detect internal temperature anomalies, necessitating manual on-site control such as water spraying. This requires installing pipelines on-site, and the temperature control of the spraying area necessitates a separate water temperature control room, resulting in high spraying costs. Furthermore, this equipment could be installed outside the tunnel and charged via solar energy. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a mobile, high-precision temperature-controlled spraying device for high-temperature tunnel concrete. The mobile spraying method can spray and cure the concrete, which can reduce the cost of on-site pipeline installation, eliminate the need for a separate water temperature room, significantly reduce the cost of concrete curing, and automatically heat the curing water when necessary to prevent excessive temperature difference between the water and the surface of the concrete after demolding.

[0004] The objective of this invention is achieved through the following technical solution: A mobile, high-precision temperature-controlled spraying device for high-temperature tunnel concrete includes a movable vehicle body equipped with a spraying module. The spray module is connected to a high-pressure water source and a spray pipe. The outlet of the spray pipe is connected to a pressure nozzle. The high-pressure water source supplies high-pressure water to the spray pipe through the spray module. When the spray pipe is not full of water, the pressure nozzle is closed. When the spray pipe is full of water, the spray pipe moves in a straight line to the area to be sprayed under the action of water pressure. Then, the pressure is increased to open the pressure nozzle and spray.

[0005] Furthermore, the spray module includes a hollow water pipe coil and a winch shaft located at the center of one side of the water pipe coil. The water pipe coil is rotatably connected to the vehicle body, and a high-pressure metal pipe for connecting to a high-pressure water source is provided on the other side of the water pipe coil. The winch shaft is provided with a transfer gear on its outside, the spray pipe is wound around the water pipe coil, and the vehicle body is provided with a first motor, which is provided with a drive gear that meshes with the transfer gear.

[0006] Furthermore, the high-pressure water source includes a water tank, a first temperature sensor installed inside the water tank, a water level sensor, a condenser tube, a heater, a water pump, and a second temperature sensor installed outside the water tank; The first temperature sensor is used to detect the water temperature in the water tank; The water level sensor is used to detect the liquid level in the water tank; The condenser tube is used to cool the liquid in the water tank; The heater is used to heat the liquid in the water tank; The outlet of the water pump is connected to the high-pressure metal pipe; The second temperature sensor is used to detect the ambient temperature outside the water tank.

[0007] Furthermore, a roller motor is provided at the bottom of the water tank.

[0008] Furthermore, the water tank is connected to an external water source via a long water pipe and a water inlet pipe.

[0009] Furthermore, the pressure nozzle includes a connector, an inner housing communicating with the connector, and an outer housing disposed outside the inner housing; The connector is used to connect to the spray pipe; A transition cavity is provided between the outer shell and the inner shell, a drain hole communicating with the transition cavity is provided in the middle of the inner shell, and spray holes communicating with the transition cavity are uniformly provided on the outer shell. The inner shell is equipped with a water stop valve. When the pressure nozzle is in the closed state, the water stop valve is located between the drain hole and the connector to block the drain hole. When the pressure nozzle is in the open state, the water stop valve is located on the side of the drain hole away from the connector. At this time, the transition cavity and the connector are connected through the drain hole.

[0010] Furthermore, both the inner shell and the outer shell are made of stainless steel.

[0011] Furthermore, a solar charging module is installed on the exterior of the vehicle body. This module provides power to the vehicle body and automatically heats the curing water when necessary to prevent excessive temperature difference between the water and the freshly demolded concrete surface. Furthermore, the solar charging module includes a solar panel, a GPS locator disposed in the middle of the four sides of the solar panel, a telescopic rod disposed on one side of the bottom of the solar panel, and a detector for detecting light intensity; The other side of the solar panel is rotatably connected to the vehicle body via a hinge.

[0012] The beneficial effects of this invention are: 1) This invention uses a mobile sprayer to spray and cure concrete, which can reduce the cost of on-site pipeline installation and eliminate the need for a separate water temperature room, thus significantly reducing the cost of concrete curing.

[0013] 2) After adjusting the direction using four GPS locators, control the angle so that the solar panel is directly facing the sun. Then, lift the solar panel using a telescopic rod so that the light resistance of the detector center perpendicular to the solar panel is at its minimum. At this time, the energy conversion efficiency of the device is maximized when charging it.

[0014] 3) The curing water is automatically heated by solar energy when necessary to avoid excessive temperature difference between the water and the surface of the concrete after demolding, thereby avoiding cold shock and surface cracking of the concrete. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a mobile high-precision temperature-controlled spraying device for high-temperature tunnel concrete in an embodiment of the present invention. Figure 2 This is a front view of the spray module; Figure 3 This is a side view of the spray module; Figure 4 This is a schematic diagram of the internal structure of a high-pressure water source; Figure 5 This is a schematic diagram of the external structure of a high-pressure water source. Figure 6 This is a schematic diagram of the pressure nozzle in the closed state; Figure 7 This is a schematic diagram of the pressure nozzle in the open state; Figure 8 This is a diagram showing the scattering distribution of water jets from the outer casing. Figure 9 This is a top view of the solar panel; Figure 10 This is a left-side view of the solar panel. Figure 11 This is a right-side view of the solar panel. Figure 12 A schematic diagram of the detector; Figure 13 This is a distribution diagram of the photoresistors of the detector; Figure 14 This is a schematic diagram of the wireless control and transmission module; In the diagram, 1. Vehicle body; 2. Sprinkler module; 3. High-pressure water source; 4. Sprinkler pipe; 5. Pressure nozzle; 6. Water pipe coil; 7. Winch shaft; 8. High-pressure metal pipe; 9. Adapter gear; 10. First motor; 11. Drive gear; 12. Water tank; 13. First temperature sensor; 14. Water level sensor; 15. Condenser pipe; 16. Heater; 17. Water pump; 18. Second temperature sensor; 19. Roller motor; 20. Long water pipe; 21. Water pipe; 22. Connector; 23. Inner shell; 24. Outer shell; 25. Drain hole; 26. Spray hole; 27. Solar panel; 28. GPS locator; 29. ​​Telescopic rod; 30. Detector; 31. LED light and camera; 32. Infrared imaging probe; 33. Battery; 34. Stop valve; 35. Wireless controller; 36. Data transmitter; 37. Wireless control and transmission module. Detailed Implementation

[0016] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] See Figures 1-14 The present invention provides a technical solution: Example

[0018] like Figures 1-14 As shown, a mobile high-precision temperature control spraying device for high-temperature tunnel concrete includes a movable vehicle body 1, on which a spraying module 2 is provided. The spray module 2 is connected to a high-pressure water source 3 and a spray pipe 4. The outlet of the spray pipe 4 is connected to a pressure nozzle 5. The high-pressure water source 3 supplies high-pressure water to the spray pipe 4 through the spray module 2. Under the action of the high-pressure water pressure, the spray pipe 4 is laid forward so that it reaches the area to be sprayed.

[0019] The concrete is equipped with a monitoring end for detecting its internal temperature. This monitoring end is a thermometer embedded in the concrete surface (the thermometer is a common technique in this field, and its principle and model will not be described here).

[0020] in, Figure 8 The arrow pointing outwards along the circumference of the outer shell indicates the direction in which water is scattered through the spray nozzles; Figure 12 The arrow in the image indicates the angle at which the photoresistor is set.

[0021] When the monitoring terminal detects an abnormal temperature inside the concrete, the vehicle body 1 drives the spray module 2 to move. The movement of the vehicle body 1 can be controlled by remote control technology (such as a smart terminal or mobile phone) (this technology is existing technology and will not be described in detail here).

[0022] A vehicle drive motor is installed on each of the left and right sides of the vehicle body 1 to control the vehicle's operation. The forward and reverse rotation of the vehicle drive motors on the left and right sides of the vehicle body 1 controls the vehicle's forward movement and turning. The simultaneous rotation of the vehicle drive motors on the left and right sides, one in front and one behind, makes it easier for the vehicle to rotate in a directional manner.

[0023] After the vehicle body 1 arrives, the spray pipe 4, driven by water pressure, is laid forward for a sufficient length (perpendicular to the length of the vehicle body 1) so that the pressure nozzle 5 reaches the area to be sprayed. During this process, when the spray pipe 4 is not full of water, the pressure nozzle 5 is in the closed state. When the spray pipe 4 is full of water, it can move forward in a straight line to the area to be sprayed under the action of water pressure, and then pressurization is applied to open the pressure nozzle 5 to spray.

[0024] This invention uses a mobile sprayer to spray and cure concrete, which can significantly reduce on-site pipeline installation costs and eliminates the need for a separate water temperature room, thereby greatly reducing concrete curing costs.

[0025] Furthermore, such as Figures 1-3 As shown, the spray module 2 includes a hollow water pipe coil 6 and a winch shaft 7 located at the center of one side of the water pipe coil 6. The water pipe coil 6 is rotatably connected to the vehicle body 1. The other side of the water pipe coil 6 is provided with a high-pressure metal pipe 8 for connecting to a high-pressure water source 3. The high-pressure metal pipe 8 communicates with the interior of the water pipe coil 6, and the spray pipe 4 communicates with the interior of the water pipe coil 6 (wherein, the high-pressure metal pipe is rotatably connected to the water tank of the high-pressure water source 3, and the two are dynamically sealed (the dynamic sealing structure is existing technology and will not be described in detail here)).

[0026] The winch shaft 7 is provided with a transfer gear 9 on its outside. The spray pipe 4 is coiled on the water pipe coil 6. The vehicle body 1 is provided with a first motor 10. The first motor 10 is provided with a drive gear 11 that meshes with the transfer gear 9.

[0027] Water is supplied to the spray pipe 4 via a high-pressure metal pipe 8, a winch shaft 7, and a water pipe coil 6. The rotation of the first motor 10 drives the drive gear 11, which in turn drives the adapter gear 9, which in turn drives the water pipe coil 6. As the water pipe coil 6 rotates, the spray pipe 4 coiled around it is released. Once the spray pipe 4 has been released to the required length, the pressure nozzle 5 can reach the area to be sprayed.

[0028] The required release length of the spray pipe 4 is calculated using the following formula: When the equipment stops, the spatial coordinates of the pressure nozzle 5 are A(a, b, c), and the spatial coordinates of the target spray point are B(d, e, f). The straight-line distance between the two is the required release length of the spray pipe 4.

[0029] The vehicle body 1 accurately determines the vehicle angle based on the four positions of the GPS locator 28, aligns the vehicle nozzle with the area to be sprayed, and then the first motor 10 extends the spray pipe 4 to the required length.

[0030] The water pipe coil 6 is made of stainless steel, which ensures the strength of the water pipe coil 6 and also prevents it from being corroded by water.

[0031] Furthermore, such as Figure 1 , Figure 4 and Figure 5As shown, the high-pressure water source 3 includes a water tank 12, a first temperature sensor 13 installed inside the water tank 12, a water level sensor 14, a condenser 15, a heater 16, a water pump 17, and a second temperature sensor 18 installed outside the water tank 12. The first temperature sensor 13 is used to detect the water temperature in the water tank 12; The water level sensor 14 is used to detect the liquid level in the water tank 12; The condenser tube 15 is used to cool the liquid in the water tank 12; The heater 16 is used to heat the liquid in the water tank 12; The outlet of the water pump is connected to the high-pressure metal pipe 8; The second temperature sensor 18 is used to detect the ambient temperature outside the water tank 12.

[0032] The bottom of the water tank 12 is equipped with a roller motor 19. The working principle of the roller motor 19 is similar to that of the rotating motor at the bottom of the washing machine. The purpose of setting the roller motor 19 is to stir the liquid inside the water tank 12, so that the liquid temperature in the water tank 12 is uniform and to avoid excessive error in the detection results of the first temperature sensor 13.

[0033] The water tank 12 is connected to an external water source via a long water pipe 20 and a water inlet pipe 21. The long water pipe 20 is also wound around a water pipe coil 6, with the axis of the coil 6 winding the long water pipe 20 perpendicular to the axis of the coil winding the spray pipe 4. The inlet pipe of the long water pipe 20 is freely positioned for easy connection to a water source (such as a faucet). This arrangement ensures that the water tank 12 can still be replenished with water even after the vehicle body 1 has moved within a certain range. A filter screen is installed between the long water pipe 20 and the water source to minimize wear on the internal pipes of the equipment after water supply, thereby increasing the service life of the equipment.

[0034] Water enters the water tank 12 through the long water pipe 20 and the through water pipe 21. Water intake stops when the water level in the tank reaches the water level sensor 14. At this point, based on the difference between the first temperature sensor 13 and the second temperature sensor 18, and by calculating the temperature difference between the second temperature sensor 18 and the thermometer embedded in the concrete surface, the difference between the concrete surface and the real-time air temperature can be calculated. The optimal spraying temperature for the liquid in the water tank 12 can then be determined. (When used for concrete pouring and curing, excessive temperature differences can have adverse effects on concrete curing. When used for plant spraying, the temperature needs to be controlled according to the plant's needs.) Temperature of the area to be sprayed (measured by the first temperature sensor) - (temperature of the second sensor - surface temperature of the concrete) - 5℃ for cooling / 10℃ for heating The temperature control, with 5℃ for cooling and 10℃ for heating, is required by the standard to maintain a temperature difference within 15℃. However, the mechanical equipment senses the temperature, and there is an energy dissipation process after the spraying equipment stops. Cooling and heating should be stopped before energy dissipation, aiming to bring the temperature as close as possible to the midpoint of 15℃ (7.5℃). 5℃ and 10℃ represent the limits during energy dissipation to ensure the temperature difference remains within 15℃. (If the spraying equipment is used for landscaping, agriculture, or industry, the desired spraying temperature can be set via an app or computer control terminal; temperature control is based on ±2.5 of the desired value.) Spraying the area under these conditions minimizes the risk of concrete cracking caused by factors such as temperature differences between the inside and outside of the concrete, weather variations leading to moisture evaporation, or excessively high water temperatures resulting in poor spraying effects.

[0035] Among them, such as Figure 1 and Figure 14 As shown, the water tank 12 is equipped with a wireless control and transmission module 37, which includes a wireless controller 35, a data transmitter 36, a backup wireless controller 35, and a backup data transmitter 36.

[0036] The wireless controller 35 and the data transmitter 36 are mounted on top of the water tank 12 via a honeycomb-shaped aging-resistant rubber plate to minimize the impact of vibrations caused by poor terrain conditions on the equipment and to improve the service life of the wireless controller 35 and the data transmitter 36.

[0037] The wireless controller 35 is used to control the mechanical commands of the entire mechanical equipment (such as the start and stop of the first motor 10, roller motor 19, and vehicle drive motor). When the wireless controller 35 is damaged and cannot operate, a pneumatic backup wireless controller 35 is activated and the abnormal information of the equipment is submitted to the APP or equipment terminal.

[0038] The data transmitter 36 is used to interact with the device data and the instructions set by the smart terminal, such as the range and temperature. After receiving the data, it controls the wireless controller 35. The backup data transmitter 36 works in the same way as the backup wireless controller 35.

[0039] The device has a charging port at the rear for charging the battery 33 via AC power, preventing the device from failing to start due to insufficient solar energy. When the battery is low, the device will promptly transmit information to the APP and the device terminal, at which point manual charging will be required.

[0040] Furthermore, such as Figure 1 , Figures 6-8 As shown, the pressure nozzle 5 includes a connector 22, an inner housing 23 communicating with the connector 22, and an outer housing 24 disposed outside the inner housing 23; The connector 22 is used to connect with the spray pipe 4; the connector 22 and the spray pipe 4 are connected by a threaded structure, which facilitates the lifting ring operation after the spray pipe 4 ages, and makes it as convenient as possible to replace easily aged and easily damaged parts at a low cost.

[0041] A transition cavity is provided between the outer shell 24 and the inner shell 23. A drain hole 25 communicating with the transition cavity is provided in the middle of the inner shell 23. A spray hole 26 communicating with the transition cavity is uniformly provided on the outer shell 24. The inner housing 23 is equipped with a water-stop valve 34. When the pressure nozzle 5 is in the closed state, the water-stop valve 34 is located between the drain hole 25 and the connector 22, and is used to block the drain hole 25. When the pressure nozzle 5 is in the open state, the water-stop valve 34 is located on the side of the drain hole 25 away from the connector 22, and at this time the transition chamber and the connector 22 are connected through the drain hole 25. (A metal fixing rod perpendicular to the connector 22 is provided at the center of the inner housing. The metal fixing rod is used to prevent the top outer shell of the spray head from being washed away due to excessive water pressure and to facilitate replacement after long-term impact wear caused by pressure advancement.) Both the inner shell 23 and the outer shell 24 are made of stainless steel.

[0042] When the water pressure is sufficient, the stop valve 34 is pushed. When the stop valve 34 moves beyond the drain hole 25, the pressure nozzle 5 opens, and water enters the transition chamber through the drain hole 25 and is sprayed out from the spray hole 26 to spray the area to be sprayed. When the water pressure is insufficient, the stop valve 34 springs back to the closed state, causing the pressure nozzle 5 to close.

[0043] Among them, the water stop valve 34 has a hemispherical structure with an arc-shaped top, while the top of the inner shell 23 has a bullet-shaped structure with a size smaller than the diameter of the water stop valve 34. When the water stop valve 34 is pushed, it cannot be in a fully open state, so the water stop valve 34 can easily rebound to the closed state when the water pressure is insufficient.

[0044] Meanwhile, the outer shell 24 and the connector 22 are made of metal (which can be, but is not limited to, stainless steel). The weight of its bottom (flat part) is greater than that of its top (spherical part). Affected by water pressure, when the pressure nozzle 5 is spherically facing upwards, it can maintain a stable state. When the water pressure is insufficient, the water stop valve 34 automatically rebounds and falls back due to the arc-shaped surface formed by the tough metal structure (the thin sheet of the metal structure (water stop valve) is in a state of stress. Normally, it is in a downward state. When the water pressure is sufficient, it can lift the thin sheet to expose the spray hole).

[0045] Furthermore, such as Figure 1 , Figures 9-13As shown, the vehicle body 1 is equipped with a solar charging module on its exterior. This module converts solar energy into electrical energy to power the vehicle body 1 and automatically heats the curing water when necessary to prevent excessive temperature differences between the water and the freshly demolded concrete surface. The vehicle body 1 is equipped with a battery 33, which serves the functions of the vehicle body 1, and the solar charging module charges the battery 33.

[0046] The solar charging module includes a solar panel 27, a GPS locator 28 located in the middle of the four sides of the solar panel 27, a telescopic rod 29 located on one side of the bottom of the solar panel 27, and a detector 30 for detecting light intensity. The other side of the solar panel 27 is rotatably connected to the vehicle body 1 via a hinge. The telescopic rod 29 is an electro-hydraulic telescopic rod 29, which is existing technology; its specific structure and principle will not be described in detail here.

[0047] The detector 30 consists of multiple photoresistors at different angles. Based on the data collected from these photoresistors at each angle (the principle of photoresistors is that the weaker the light, the greater the resistance), it can be intuitively determined that the solar energy at the specific angle and orientation of the device can maximize energy storage. The orientation is adjusted by four GPS locators 28 to control the angle, ensuring that the solar panel 27 faces the direct sunlight. The solar panel 27 is then raised via a telescopic rod 29, minimizing the surface resistance of the detector 30 perpendicular to the solar panel 27. At this point, the energy conversion efficiency of the device is maximized during charging.

[0048] By setting up the solar panel 27 with the function of tracking the light, not only can energy be saved, but the maximum energy conversion efficiency can also be maintained when the solar panel 27 is charging.

[0049] LED lights and a camera 31 are installed on the top of the front of the vehicle body 1, and an infrared imaging probe 32 is installed at the rear.

[0050] The site can be observed in real time through LED lights and camera 31, while the infrared imaging probe 32 placed in front of the vehicle can depict the overall surroundings of the equipment and perform routine obstacle avoidance operations. If the shortest spraying distance cannot be achieved, the equipment only needs to move a certain distance to avoid the part with the obstacle.

[0051] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A mobile, high-precision temperature-controlled spraying device for high-temperature tunnel concrete, characterized in that: Includes a movable vehicle body, on which a spray module is installed; The spray module is connected to a high-pressure water source and a spray pipe. The outlet of the spray pipe is connected to a pressure nozzle. The high-pressure water source supplies high-pressure water to the spray pipe through the spray module. When the spray pipe is not full of water, the pressure nozzle is closed. When the spray pipe is full of water, the spray pipe moves in a straight line to the area to be sprayed under the action of water pressure. Then, the pressure is increased to open the pressure nozzle and spray.

2. The mobile high-precision temperature-controlled spraying equipment for high-temperature tunnel concrete according to claim 1, characterized in that: The spray module includes a hollow water pipe coil and a winch shaft located at the center of one side of the water pipe coil. The water pipe coil is rotatably connected to the vehicle body. The other side of the water pipe coil is provided with a high-pressure metal pipe for connecting to a high-pressure water source. The winch shaft is provided with a transfer gear on its outside, the spray pipe is wound around the water pipe coil, and the vehicle body is provided with a first motor, which is provided with a drive gear that meshes with the transfer gear.

3. The mobile high-precision temperature-controlled spraying equipment for high-temperature tunnel concrete according to claim 2, characterized in that: The high-pressure water source includes a water tank, a first temperature sensor installed inside the water tank, a water level sensor, a condenser, a heater, a water pump, and a second temperature sensor installed outside the water tank. The first temperature sensor is used to detect the water temperature in the water tank; The water level sensor is used to detect the liquid level in the water tank; The condenser tube is used to cool the liquid in the water tank; The heater is used to heat the liquid in the water tank; The outlet of the water pump is connected to the high-pressure metal pipe; The second temperature sensor is used to detect the ambient temperature outside the water tank.

4. The mobile high-precision temperature-controlled spraying equipment for high-temperature tunnel concrete according to claim 3, characterized in that: The bottom of the water tank is equipped with a roller motor.

5. The mobile high-precision temperature-controlled spraying equipment for high-temperature tunnel concrete according to claim 3, characterized in that: The water tank is connected to an external water source via a long water pipe and a water inlet pipe.

6. The mobile high-precision temperature-controlled spraying equipment for high-temperature tunnel concrete according to any one of claims 1-5, characterized in that: The pressure nozzle includes a connector, an inner housing communicating with the connector, and an outer housing disposed outside the inner housing; The connector is used to connect to the spray pipe; A transition cavity is provided between the outer shell and the inner shell, a drain hole communicating with the transition cavity is provided in the middle of the inner shell, and spray holes communicating with the transition cavity are uniformly provided on the outer shell. The inner shell is equipped with a water stop valve. When the pressure nozzle is in the closed state, the water stop valve is located between the drain hole and the connector to block the drain hole. When the pressure nozzle is in the open state, the water stop valve is located on the side of the drain hole away from the connector. At this time, the transition cavity and the connector are connected through the drain hole.

7. The mobile high-precision temperature-controlled spraying equipment for high-temperature tunnel concrete according to claim 6, characterized in that: Both the inner and outer shells are made of stainless steel.

8. The mobile high-precision temperature-controlled spraying equipment for high-temperature tunnel concrete according to claim 6, characterized in that: The vehicle body is equipped with a solar charging module, which is used to provide power to the vehicle body.

9. The mobile high-precision temperature-controlled spraying equipment for high-temperature tunnel concrete according to claim 8, characterized in that: The solar charging module includes a solar panel, a GPS locator located in the middle of the four sides of the solar panel, a telescopic rod located on one side of the bottom of the solar panel, and a detector for detecting light intensity. The other side of the solar panel is rotatably connected to the vehicle body via a hinge.

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