Lifting spraying dust removal device for maintenance vehicle

Abstract

The invention relates to a lifting spray dust removal device for a maintenance vehicle, which comprises a movable vehicle body, a dust removal device and a dust removal device, a warm water storage container is arranged on the bottom side of the middle of the water tank, and an instant water heater is arranged in the warm water storage container; the cold water storage container is movably arranged on the warm water storage container in a sleeving manner; the water inlet end of the high-pressure water pump is connected to the water outlet end of the instant water heater, the water outlet end of the high-pressure water pump is connected to the water inlet end of the fog gun, and the warm water storage container is connected with a second water outlet pipe connected to the water outlet end of the instant water heater in parallel; the water outlet end of the cold water inlet pipe extends to the top of the warm water storage container, a water inlet bypass pipe is arranged between the warm water storage container and the water tank, and water inlet guide pipes connected to the top of the warm water storage container, between the warm water storage container and the water tank and in the warm water storage container are arranged at the water inlet end of the instant water heater in parallel. The fog gun can be installed in a lifting mode, and a water body can be instantly heated to the designed temperature in the water body output process.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of maintenance vehicles, in particular to a kind of maintenance vehicles is lifted and is used in spray dust removal device. BACKGROUND

[0002] The existing maintenance vehicles are mostly configured with corresponding spray dust removal devices, which effectively spray a large amount of water mist during the travel of the maintenance vehicles, thereby effectively adsorbing dust in the air to make it settle, effectively reducing dust concentration, and thereby improving air quality, protecting the road surface, and meeting environmental protection requirements.

[0003] The existing spray dust removal devices generally include a water tank for storing water and a fog gun, and a high-pressure water pump is used to pump the water in the water tank to the fog gun for atomization and spraying. The spray dust removal devices installed on traditional sanitation vehicles are directly fixed on the support platform of the mobile vehicle body, and the height of dust removal, spraying and humidification is fixed, which cannot meet the working conditions with different working heights. Most importantly, ordinary fog guns are prone to icing in some low-temperature areas during use, which causes pipeline blockage and equipment damage. To prevent icing due to low water temperature, some manufacturers have begun to install heaters in the water tank for storing water, and an electric heater is used to continuously heat the water in the water tank, thereby maintaining the water in the water tank at a certain temperature. However, the energy consumption required for long-term operation of the electric heater is high, which does not meet the needs of modern production. Directly using an instant water heater to heat the flowing water during water output is not a good solution because the water flow rate during water supply is relatively high, and the heating temperature of the water cannot meet the design requirements.

[0004] Therefore, the purpose of the present application is to design a maintenance vehicle lift spray dust removal device that can effectively lift and install the fog gun, thereby effectively meeting different working height conditions, and can instantly heat the flowing water to the design temperature during water output, thereby effectively preventing icing due to low water temperature at a relatively low energy consumption. SUMMARY

[0005] To solve the above technical problems of the prior art, the present application provides a maintenance vehicle lift spray dust removal device that can effectively solve the above technical problems of the prior art.

[0006] The technical solution of the present application is: A maintenance vehicle lift spray dust removal device, comprising: A mobile vehicle body, a corresponding fog gun is installed on the mobile vehicle body and can be lifted; The water tank is provided with a corresponding warm water storage container at the middle bottom side, and a instant water heater is arranged in the warm water storage container; A cold water storage container is movably sleeved on the warm water storage container, and a corresponding heat preservation material layer is fixedly connected to the outer side wall and top of the cold water storage container, and a corresponding sealing ring plate is fixedly connected to the bottom of the cold water storage container, and the two sides of the sealing ring plate are sealingly abutted to the outer side wall of the warm water storage container and the inner side wall of the water tank. A high-pressure water pump is connected to the water outlet end of the instant water heater through a first water outlet pipe provided with a first water outlet valve, the water inlet end of the high-pressure water pump is connected to the water inlet end of the fog gun, and a second water outlet pipe provided with a second water outlet valve is connected to the top of the warm water storage container and is connected in parallel to the water outlet end of the instant water heater. A cold water inlet pipe is provided with a corresponding cold water inlet valve at the water inlet end, and the water outlet end of the cold water inlet pipe extends to the top of the warm water storage container, and a water inlet bypass pipe connected in parallel to the cold water inlet pipe is arranged between the warm water storage container and the bottom of the water tank, and the water inlet guide pipes connected to the top of the warm water storage container, between the warm water storage container and the bottom of the water tank, and in the warm water storage container are arranged in parallel through three automatic valves at the water inlet end of the instant water heater.

[0007] The cold water enters the cold water storage container at the top of the warm water storage container and between the warm water storage container and the water tank through the cold water inlet pipe, before the spray dust removal, the automatic valve connected to the water inlet guide pipe between the top of the warm water storage container and the bottom of the warm water tank is opened, the cold water stored in the cold water storage container and between the warm water storage container and the water tank is preliminarily heated by the instant water heater to form warm water, and then enters the warm water storage container through the second water outlet pipe, finally, the high-pressure water pump is started, and the automatic valve connected to the water inlet guide pipe in the warm water storage container is opened, the warm water in the warm water storage container is heated again by the instant water heater to form hot water, and then is pumped to the fog gun for spraying.

[0008] A corresponding pressure relief pipe is arranged in the warm water storage container, the top of the pressure relief pipe is located below the top of the warm water storage container, the bottom of the pressure relief pipe extends sealingly through to the bottom side of the warm water storage container, and a corresponding pressure relief valve is fixedly arranged.

[0009] The top end of the water tank is downwardly provided with a driving device for assisting the driving of the cold water storage container, in the process of cold water entering the cold water storage container, the driving device drives the cold water storage container to move upward, and in the process of cold water leaving the cold water storage container, the driving device drives the cold water storage container to move downward.

[0010] The driving device includes a first electromagnet fixed to the top of the water tank. The first electromagnet is fixed downward to a corresponding magnetic metal plate via a first helical spring. The magnetic metal plate is fixed downward to a corresponding second electromagnet via a second helical spring. The second electromagnet is fixed to the top of the cold water storage container via a third helical spring.

[0011] During the process of cold water entering the cold water storage container, the first electromagnet is first energized to attract and drive the magnetic metal plate, the first helical spring is compressed, and the second and third helical springs are stretched, forming an upward driving force on the cold water storage container under the action of elastic force; then, the second electromagnet is energized to attract and connect to the magnetic metal plate, the second helical spring is compressed, and the third helical spring is stretched, further forming an upward driving force on the cold water storage container under the action of elastic force; during the process of cold water leaving the cold water storage container, the first electromagnet is de-energized, and a downward driving force is formed on the cold water storage container under the action of elastic force of the first helical spring; then, the second electromagnet is de-energized, and a downward driving force is formed on the cold water storage container under the action of elastic force of the second helical spring.

[0012] A first sealing rubber ring is fixedly connected to the sealing ring plate, which seals against the outer wall of the warm water storage container and the inner wall of the water tank. A second sealing rubber ring is fixedly connected to the top of the warm water storage container, which seals against the inner wall of the cold water storage container.

[0013] The fog cannon is movably mounted on the mobile vehicle body via a corresponding lifting and mounting mechanism. The lifting and mounting mechanism includes a lifting cross arm mounted on the mobile vehicle body. The lifting cross arm is driven by a corresponding drive cylinder. A corresponding support platform is mounted on the top of the lifting cross arm, and the fog cannon is fixedly mounted on the support platform.

[0014] The support platform is fixedly equipped with corresponding guardrails.

[0015] The outer wall of the water tank is coated with a corresponding heat-absorbing material layer.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1) The water tank of the present invention has a warm water storage container at the bottom of the middle part, which contains an instant water heater, and a cold water storage container is movably sleeved on its outside. During use, external cold water is pre-introduced through the cold water inlet pipe of the present invention into the cold water storage container at the top of the warm water storage container and between the warm water storage container and the water tank, so that the external cold water is distributed and stored in the cold water storage container and between the warm water storage container and the water tank. Under the weight of the water between the warm water storage container and the water tank, the center of gravity of the water tank can be effectively prevented from being too high, thereby ensuring the overall stability of the water tank.

[0017] Before the spray dust suppression, the automatic valve on the inlet pipe connected to the top of the warm water storage container and the bottom of the water tank opens. The cold water stored in the cold water storage container and between the warm water storage container and the water tank is initially heated by the instantaneous water heater to become warm water, which then enters the warm water storage container through the second outlet pipe. After the initial heating of the water is completed, the cold water storage container completely covers the outside of the warm water storage container. With the help of the insulation material layer, the heat exchange between the warm water in the warm water storage container and the cold air outside is effectively reduced, thereby effectively maintaining the water temperature.

[0018] Finally, the high-pressure water pump starts, and the automatic valve on the inlet pipe connected to the warm water storage container opens. The warm water in the storage container is then reheated by the instantaneous water heater to form hot water, which is then pumped to the mist cannon for spraying. This allows the water to be heated to the designed temperature in real time during the output process, effectively preventing freezing due to excessively low water temperature while consuming less energy.

[0019] 2) The fog cannon of the present invention can be lifted and installed on a mobile vehicle, and the working height of the fog cannon can be effectively adjusted according to the on-site operation requirements, thereby adjusting the output height of the dust suppression water mist.

[0020] 3) The warm water storage container of the present invention is equipped with a pressure relief pipe, the top of which is located below the top of the warm water storage container, the bottom of which is sealed and extends through to the bottom of the warm water storage container, and a corresponding pressure relief valve is fixedly installed thereon. During the process of water entering / exiting the warm water storage container, the pressure relief valve opens to release pressure, so as to ensure the smoothness of water preheating input and secondary heating output of the present invention, thereby effectively ensuring the practical effect of the present invention.

[0021] 4) The top of the water tank of the present invention is provided with a driving device for auxiliary driving of the cold water storage container. The device includes a first electromagnet fixed to the top of the water tank. The first electromagnet is fixed to a corresponding magnetic metal plate downward through a first helical spring. The magnetic metal plate is fixed to a corresponding second electromagnet downward through a second helical spring. The second electromagnet is fixed to the top of the cold water storage container through a third helical spring.

[0022] During the process of cold water entering the cold water storage container, the first electromagnet is first energized to attract and drive the magnetic metal plate, causing the first helical spring to be compressed and the second and third helical springs to be stretched. Under the action of elastic force, an upward driving force is generated on the cold water storage container. Then, the second electromagnet is energized to attract and connect to the magnetic metal plate, causing the second helical spring to be compressed and the third helical spring to be stretched, so as to further generate an upward driving force on the cold water storage container under the action of elastic force, thereby reducing the input pressure of external cold water and effectively improving the practical effect of the invention.

[0023] During the process of cold water leaving the cold water storage container, the first electromagnet is de-energized, and under the elastic force of the first helical spring, it forms a downward driving force on the cold water storage container; then, the second electromagnet is de-energized, and under the elastic force of the second helical spring, it forms a downward driving force on the cold water storage container, thereby increasing the output pressure of the cold water stored in the cold water storage container and between the warm water storage container and the water tank, thereby reducing the output pressure during cold water preheating, so as to further effectively improve the practical effect of the present invention.

[0024] 5) Since the driving device of the present invention is equipped with a third helical spring, it can adaptably extend and retract during the switching on and off of the first electromagnet and the second electromagnet, thereby effectively compensating for the driving stroke and preventing excessive driving stroke of the cold water storage container caused by the switching on and off of the first electromagnet and the second electromagnet, thus effectively ensuring the practical effect of the present invention.

[0025] 6) A first sealing rubber ring is fixedly connected to the sealing ring plate of the present invention, sealing against the outer wall of the warm water storage container and the inner wall of the water tank. A second sealing rubber ring is fixedly connected to the top of the warm water storage container, sealing against the inner wall of the cold water storage container. The first and second sealing rubber rings effectively ensure that no leakage occurs within the cold water storage container and between the warm water storage container and the water tank, thereby further ensuring the practical effect of the present invention. Attached Figure Description

[0026] Fig. 1 This is a schematic diagram of the structure of the present invention.

[0027] Fig. 2 This is a structural diagram of the water tank of the present invention, which includes components such as a warm water storage container.

[0028] Fig. 3 This is a diagram showing the usage status of the invention.

[0029] In the attached diagram: 1. Mobile vehicle body; 2. Fog cannon; 3. Water tank; 4. Warm water storage container; 5. Instantaneous water heater; 6. Cold water storage container; 8. Insulation material layer; 7. Sealing ring plate; 9. High-pressure water pump; 11. First water outlet valve; 10. First water outlet pipe; 12. Second water outlet valve; 13. Second water outlet pipe; 14. Cold water inlet pipe; 15. Cold water inlet valve; 16. Inlet bypass pipe; 17. Automatic valve; 18. Inlet conduit; 19. Pressure relief pipe; 20. Pressure relief valve; 21. Drive device; 2101. First electromagnet; 2102. First helical spring; 2103. Magnetic metal plate; 2104. Second helical spring; 2105. Second helical spring; 2106. First sealing rubber ring; 22. Second sealing rubber ring; 23. Lifting cross arm; 2401. Drive cylinder; 2402. Support platform; 2403. Guardrail; 25. Heat-absorbing material layer; 26. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0031] refer to Figs. 1-3 A lifting spray dust removal device for vehicle maintenance, comprising: Mobile vehicle body 1, on which a corresponding fog cannon 2 can be lifted and lowered; Water tank 3, with a corresponding warm water storage container 4 fixedly installed on the bottom side of the middle, and an instant water heater 5 installed inside the warm water storage container 4; A cold water storage container 6 is movably fitted onto the warm water storage container 4. The outer wall and top of the cold water storage container 6 are respectively fixed with corresponding heat insulation material layers 8, and the bottom of the cold water storage container 6 is fixed with corresponding sealing ring plate 7. The two sides of the sealing ring plate 7 are respectively sealed and abutted against the outer wall of the warm water storage container 4 and the inner wall of the water tank 3. The high-pressure water pump 9 has its inlet end connected to the outlet end of the instant water heater 5 via a first outlet pipe 10 equipped with a first outlet valve 11. The outlet end of the high-pressure water pump 9 is connected to the inlet end of the mist cannon 2. A second outlet pipe 13 equipped with a second outlet valve 12 is connected to the warm water storage container 4. The second outlet pipe 13 is connected in parallel to the outlet end of the instant water heater 5. The cold water inlet pipe 14 has a corresponding cold water inlet valve 15 installed at the inlet end. The outlet end of the cold water inlet pipe 14 extends to the top of the warm water storage container 4. A bypass pipe 16 connected in parallel to the cold water inlet pipe 14 is provided between the bottom of the warm water storage container 4 and the water tank 3. The inlet end of the instant water heater 5 is provided with three automatic valves 17 connected in parallel to the top of the warm water storage container 4, the bottom of the warm water storage container 4 and the water tank 3, and the inlet conduit 18 inside the warm water storage container 4.

[0032] Cold water enters the cold water storage container 6 at the top of the warm water storage container 4 and between the warm water storage container 4 and the water tank 3 through the cold water inlet pipe 14. Before the dust suppression spray, the automatic valve 17 on the inlet pipe 18 connected to the top of the warm water storage container 4 and the bottom of the warm water storage container 4 and the water tank 3 is opened. The cold water stored in the cold water storage container 6 and between the warm water storage container 4 and the water tank 3 is initially heated by the instant water heater 5 to form warm water, and enters the warm water storage container 4 through the second outlet pipe 13. Finally, the high-pressure water pump 9 is started, and the automatic valve 17 on the inlet pipe 18 connected to the warm water storage container 4 is opened. The warm water in the warm water storage container 4 is reheated by the instant water heater 5 to form hot water, and is pumped to the mist cannon 2 for spraying.

[0033] The water tank 3 of this invention has a warm water storage container 4 located on the bottom side of its middle section. An instantaneous water heater 5 is installed inside the warm water storage container 4, and a cold water storage container 6 is movably fitted on its outer side. During use, external cold water is pre-introduced through the cold water inlet pipe 14 of this invention into the cold water storage container 6 at the top of the warm water storage container 4, and between the warm water storage container 4 and the water tank 3. This distributes and stores the external cold water within the cold water storage container 6 and between the warm water storage container 4 and the water tank 3. Under the weight of the water between the warm water storage container 4 and the water tank 3, the center of gravity of the water tank is effectively prevented from being too high, thereby ensuring the overall stability of the water tank 3.

[0034] Before the dust suppression spray, the automatic valve 17 on the inlet pipe 18 connected to the top of the warm water storage container 4 and the bottom of the water tank 3 is opened. The cold water stored in the cold water storage container 6 and between the warm water storage container 4 and the water tank 3 is initially heated by the instantaneous water heater 5 to form warm water, which then enters the warm water storage container 4 through the second outlet pipe. After the initial heating of the water is completed, the cold water storage container 6 completely covers the outside of the warm water storage container 4. With the help of the insulation material layer 9, the heat exchange between the warm water in the warm water storage container 4 and the outside cold air is effectively reduced, thereby effectively maintaining the water temperature.

[0035] Finally, the high-pressure water pump 9 starts, and the automatic valve 17 on the inlet pipe 18 connected to the warm water storage container 4 opens. The warm water in the warm water storage container 4 is reheated by the instantaneous water heater 5 to form hot water, which is then pumped to the mist cannon 2 for spraying. This allows the warm water to be heated to the designed temperature in real time during the output process, effectively preventing freezing due to excessively low water temperature with low energy consumption.

[0036] The fog cannon 2 of the present invention can be lifted and installed on the mobile vehicle 1, and the working height of the fog cannon 2 can be effectively adjusted according to the on-site operation requirements, thereby adjusting the output height of the dust suppression water mist.

[0037] A pressure relief pipe 19 is installed inside the warm water storage container 4. The top of the pressure relief pipe 19 is located below the top of the warm water storage container 4, and the bottom of the pressure relief pipe 19 extends through to the bottom of the warm water storage container 4 and is fixedly installed with a corresponding pressure relief valve 20. During the process of water entering / exiting the warm water storage container 4, the pressure relief valve 20 opens to release pressure, ensuring the smooth input of water preheating and the output of water secondary heating, thereby effectively ensuring the practical effect of the invention.

[0038] The top of the water tank 3 is provided with a driving device 21 for assisting the driving of the cold water storage container 6. During the process of cold water entering the cold water storage container 6, the driving device 21 drives the cold water storage container 6 upward. During the process of cold water leaving the cold water storage container 6, the driving device 21 drives the cold water storage container 6 downward.

[0039] The driving device 21 includes a first electromagnet 2101 fixed to the top of the water tank 3. The first electromagnet 2101 is fixed downward to a corresponding magnetic metal plate 2103 via a first helical spring 2102. The magnetic metal plate 2103 is fixed downward to a corresponding second electromagnet 2105 via a second helical spring 2104. The second electromagnet 2105 is fixed to the top of the cold water storage container 6 via a third helical spring 2106.

[0040] During the process of cold water entering the cold water storage container 6, the first electromagnet 2101 is first energized to attract and drive the magnetic metal plate 2103. The first helical spring 2102 is compressed, and the second helical spring 2104 and the third helical spring 2106 are stretched, forming an upward driving force on the cold water storage container 6 under the action of elasticity. Then, the second electromagnet 2105 is energized to attract and connect to the magnetic metal plate 2103. The second helical spring 2104 is compressed, and the third helical spring 2106 is stretched, further forming an upward driving force on the cold water storage container 6 under the action of elasticity. During the process of cold water leaving the cold water storage container 6, the first electromagnet 2101 is de-energized, and a downward driving force is formed on the cold water storage container 6 under the action of elasticity of the first helical spring 2102. Then, the second electromagnet 2105 is de-energized, and a downward driving force is formed on the cold water storage container 6 under the action of elasticity of the second helical spring 2104.

[0041] During the process of cold water entering the cold water storage container 6, the first electromagnet 2101 is first energized to attract and drive the magnetic metal plate 2103, causing the first helical spring 2102 to be compressed and the second helical spring 2104 and the third helical spring 2106 to be stretched. Under the action of elasticity, an upward driving force is generated on the cold water storage container 6. Then, the second electromagnet 2105 is energized to attract and connect to the magnetic metal plate 2103, causing the second helical spring 2104 to be compressed and the third helical spring 2106 to be stretched, so as to further generate an upward driving force on the cold water storage container 6 under the action of elasticity, thereby reducing the input pressure of external cold water and effectively improving the practical effect of the present invention.

[0042] During the process of cold water leaving the cold water storage container 6, the first electromagnet 2101 is de-energized, and under the elastic force of the first helical spring 2102, it forms a downward driving force on the cold water storage container 6; then, the second electromagnet 2105 is de-energized, and under the elastic force of the second helical spring 2104, it forms a downward driving force on the cold water storage container 6, thereby increasing the output pressure of the cold water stored in the cold water storage container 6 and between the warm water storage container 4 and the water tank 3, thereby reducing the output pressure during cold water preheating, so as to further effectively improve the practical effect of the present invention.

[0043] Because the driving device 21 of the present invention is provided with a third helical spring 2106, it can adaptably extend and retract during the switching on and off of the first electromagnet 2101 and the second electromagnet 2105, thereby effectively compensating for the driving stroke. This effectively prevents excessive driving stroke of the cold water storage container 6 caused by the switching on and off of the first electromagnet 2101 and the second electromagnet 2105, thereby effectively ensuring the practical effect of the present invention.

[0044] A first sealing rubber ring 22 is fixedly connected to the sealing ring plate 7, sealing against the outer wall of the warm water storage container 4 and the inner wall of the water tank 3. A second sealing rubber ring 23 is fixedly connected to the top of the warm water storage container 4, sealing against the inner wall of the cold water storage container 6. Under the action of the first sealing rubber ring 22 and the second sealing rubber ring 23, leakage is effectively ensured within the cold water storage container 6 and between the warm water storage container 4 and the water tank 3, thereby further ensuring the practical effect of the present invention.

[0045] The fog cannon 2 is movably mounted on the mobile vehicle body 1 via a corresponding lifting and mounting mechanism 24. The lifting and mounting mechanism 24 includes a lifting cross arm 2401 mounted on the mobile vehicle body 1. The lifting cross arm 2401 is driven by a corresponding hydraulic cylinder 2402. A corresponding support platform 2403 is mounted on the top of the lifting cross arm 2401, and the fog cannon 2 is fixedly mounted on the support platform 2403. A corresponding guardrail 25 is fixedly mounted on the support platform 2403.

[0046] The outer wall of the water tank 3 is coated with a corresponding heat-absorbing material layer 26. Since the dust suppression spraying operation is mostly carried out on sunny days, the intervention of the heat-absorbing material layer 26 can effectively prevent the cold water stored in the cold water storage container 6 and the cold water storage container 4 and the water tank 3 from freezing in the quadrant before entering the preheating stage, thereby further enhancing the practical effect of the present invention.

[0047] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A lifting spray dust removal device for vehicle maintenance, characterized in that, include: A mobile vehicle body (1) is equipped with a corresponding fog cannon (2) that can be raised and lowered. The water tank (3) has a corresponding warm water storage container (4) fixedly installed on the bottom side of the middle section, and an instant water heater (5) is installed inside the warm water storage container (4). A cold water storage container (6) is movably fitted onto the warm water storage container (4). The outer wall and top of the cold water storage container (6) are respectively fixed with corresponding heat insulation material layers (8). The bottom of the cold water storage container (6) is fixed with a corresponding sealing ring plate (7). The two sides of the sealing ring plate (7) are respectively sealed and abutted against the outer wall of the warm water storage container (4) and the inner wall of the water tank (3). The high-pressure water pump (9) is connected to the outlet of the instant water heater (5) via a first outlet pipe (10) with a first outlet valve (11). The outlet of the high-pressure water pump (9) is connected to the inlet of the mist cannon (2). A second outlet pipe (13) with a second outlet valve (12) is connected to the warm water storage container (4). The second outlet pipe (13) is connected in parallel to the outlet of the instant water heater (5). A cold water inlet pipe (14) is provided with a corresponding cold water inlet valve (15) at the inlet end. The outlet end of the cold water inlet pipe (14) extends to the top of the warm water storage container (4). A bypass pipe (16) is provided between the bottom of the warm water storage container (4) and the bottom of the water tank (3) and is connected in parallel to the cold water inlet pipe (14). The inlet end of the instant water heater (5) is provided with three automatic valves (17) in parallel and connected to the top of the warm water storage container (4), the bottom of the warm water storage container (4) and the bottom of the water tank (3), and the inlet pipe (18) inside the warm water storage container (4).

2. The lifting spray dust removal device for vehicle maintenance according to claim 1, characterized in that, Cold water enters the cold water storage container (6) at the top of the warm water storage container (4) and between the warm water storage container (4) and the water tank (3) through the cold water inlet pipe (14); before spray dust removal, the automatic valve (17) on the inlet pipe (18) connected to the top of the warm water storage container (4) and the bottom of the warm water storage container (4) and the water tank (3) is opened, and the water stored in the cold water storage container (6) and between the warm water storage container (4) and the water tank (3) is opened. After the cold water is initially heated by the instant water heater (5), it becomes warm water and enters the warm water storage container (4) through the second water outlet pipe (13). Finally, the high-pressure water pump (9) is started and the automatic valve (17) on the water inlet pipe (18) connected to the warm water storage container (4) is opened. The warm water in the warm water storage container (4) is heated again by the instant water heater (5) to form hot water and is pumped to the mist cannon (2) for spraying.

3. The lifting spray dust removal device for vehicle maintenance according to claim 1, characterized in that, The warm water storage container (4) is equipped with a corresponding pressure relief pipe (19). The top of the pressure relief pipe (19) is located below the top of the warm water storage container (4). The bottom of the pressure relief pipe (19) extends through to the bottom of the warm water storage container (4) and is fixedly installed with a corresponding pressure relief valve (20).

4. The lifting spray dust removal device for vehicle maintenance according to claim 1, characterized in that, The top of the water tank (3) is provided with a driving device (21) for assisting the driving of the cold water storage container (6). During the process of cold water entering the cold water storage container (6), the driving device (21) drives the cold water storage container (6) upward. During the process of cold water leaving the cold water storage container (6), the driving device (21) drives the cold water storage container (6) downward.

5. A lifting spray dust removal device for vehicle maintenance according to claim 4, characterized in that, The driving device (21) includes a first electromagnet (2101) fixed to the top of the water tank (3). The first electromagnet (2101) is fixed downward to a corresponding magnetic metal plate (2103) via a first helical spring (2102). The magnetic metal plate (2103) is fixed downward to a corresponding second electromagnet (2105) via a second helical spring (2104). The second electromagnet (2105) is fixed to the top of the cold water storage container (6) via a third helical spring (2106).

6. A lifting spray dust removal device for vehicle maintenance according to claim 5, characterized in that, During the process of cold water entering the cold water storage container (6), the first electromagnet (2101) is first energized to attract and drive the magnetic metal plate (2103), the first helical spring (2102) is compressed, and the second helical spring (2104) and the third helical spring (2106) are stretched, forming an upward driving force on the cold water storage container (6) under the action of elasticity; then, the second electromagnet (2105) is energized to attract and connect to the magnetic metal plate (2103), and the second helical spring (2104) is... The third helical spring (2106) is compressed and stretched to further generate an upward driving force on the cold water storage container (6) under the action of elastic force; during the process of cold water leaving the cold water storage container (6), the first electromagnet (2101) is de-energized and generates a downward driving force on the cold water storage container (6) under the action of elastic force of the first helical spring (2102); then, the second electromagnet (2105) is de-energized and generates a downward driving force on the cold water storage container (6) under the action of elastic force of the second helical spring (2104).

7. A lifting spray dust removal device for vehicle maintenance according to claim 1, characterized in that, A first sealing rubber ring (22) is fixedly connected to the sealing ring plate (7) and seals against the outer side wall of the warm water storage container (4) and the inner side wall of the water tank (3). A second sealing rubber ring (23) is fixedly connected to the top of the warm water storage container (4) and seals against the inner side wall of the cold water storage container (6).

8. A lifting spray dust removal device for vehicle maintenance according to claim 1, characterized in that, The fog cannon (2) is movably mounted on the mobile vehicle body (1) via a corresponding lifting and mounting mechanism (24). The lifting and mounting mechanism (24) includes a lifting cross arm (2401) mounted on the mobile vehicle body (1). The lifting cross arm (2401) is driven by a corresponding driving cylinder (2402). A corresponding support platform (2403) is mounted on the top of the lifting cross arm (2401). The fog cannon (2) is fixedly mounted on the support platform (2403).

9. A lifting spray dust removal device for vehicle maintenance according to claim 8, characterized in that, The support platform (2403) is fixedly installed with corresponding guardrails (25).

10. A lifting spray dust removal device for vehicle maintenance according to claim 1, characterized in that, The outer wall of the water tank (3) is coated with a corresponding heat-absorbing material layer (26).

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