Energy-saving precast concrete curing system

Abstract

The invention discloses an energy-saving precast concrete curing system which comprises an automatic spraying system, a negative pressure system, an energy-saving condensation system and a power and water supply system. Energy-saving condensation systems are arranged on the two sides of the automatic spraying system, and negative pressure systems are arranged below the energy-saving condensation systems; the automatic spraying system comprises a spraying device body, spraying devices are arranged on the two sides of the spraying device body, two movable supports are included, spraying assemblies are arranged at the other ends of the movable supports and comprise back plates, the bottoms of the back plates are movably connected with the bottoms of spraying plates, spraying heads are arranged on the front faces of the spraying plates, pull rods are arranged on the edges of the back faces of the spraying plates, and the pull rods on the two sides are connected with spring rods. The spring rods are connected through a middle radian adjusting assembly. The time of water on the surface of the precast concrete can be prolonged through staggered spraying of the two water pipes in the spraying unit, water on the surface of the precast concrete can permeate into the precast concrete through the negative pressure system, and water in the precast concrete can be further collected through the negative pressure system.

Description

Technical Field

[0001] The present invention belongs to the field of concrete curing, and particularly relates to an energy-saving curing system for concrete precast components. Background Art

[0002] After the concrete precast components are poured, they need to be cured. Usually, water needs to be sprinkled on the surface of the precast components frequently to achieve the purpose of moisture retention. In the prior art, spray heads are arranged beside the precast components for timed spray curing. This method not only generates a large amount of waste water, but also the water spraying is uneven when curing the arc-shaped concrete precast components, thus affecting the curing effect of the concrete and further affecting the final strength of the arc-shaped precast concrete. Summary of the Invention

[0003] Based on the above background art, the purpose of the present invention is to provide an energy-saving curing system for concrete precast components. The system includes an automatic spraying system, a negative pressure system, an energy-saving condensation system, and a power supply and water supply system. The energy-saving condensation system is arranged on both sides of the automatic spraying system, and the negative pressure system is arranged below the energy-saving condensation system. The automatic spraying system includes a main body of the spraying device. Spraying devices are arranged on both sides of the main body of the spraying device, including two movable brackets. The other end of the movable bracket is provided with a spraying component. The spraying component includes a back plate. The bottom of the back plate is movably connected to the bottom of the spraying plate. Spraying heads are arranged on the front surface of the spraying plate, and pull rods are arranged at the edges of the back surface. The two pull rods are connected to a spring rod, and the spring rod is connected through a curvature adjustment component in the middle.

[0004] Preferably, the curvature adjustment component includes a fixed connection plate and an adjustment slider. The fixed connection plate is fixedly connected to the longitudinal axis of the spraying plate. Chute grooves are arranged on both sides of the fixed connection plate, and the adjustment slider slides in the chute grooves. A spring rod clamping collar is arranged on the adjustment slider, and a fixing component is arranged below the clamping member.

[0005] Preferably, a spraying water tank and a distribution box are arranged inside the main body of the spraying device. The spraying water tank is respectively connected to a first water pipe and a second water pipe through a first electric water pump and a second electric water pump. The first water pipe and the second water pipe are arranged in a continuous "V" shape from top to bottom. Spraying heads are arranged at each inflection point and the end. The first water pipe and the second water pipe are arranged in an alternating manner and form a group of spraying units. Multiple groups of spraying units in the middle of the spraying plate are set as common groups, and the two sides are reserved spraying groups.

[0006] Preferably, the negative pressure system includes a negative pressure trench which is connected to a vacuum pump and an inflation pump through pipe orifices respectively. Holes are reserved in the negative pressure trench for installing connectors of a differential pressure sensor. The differential pressure sensor, the vacuum pump and the inflation pump are arranged outside the negative pressure trench. A filter screen is arranged at the bottom of the negative pressure trench, and a water collecting tank is arranged below the filter screen. A water level sensor is arranged inside the water collecting tank. The water level sensor is connected to an electric drain valve. The bottom of the water collecting tank is connected to a drain pipe, and one side of the water collecting tank is connected to a pumping pipe.

[0007] Preferably, the energy-saving condensation system includes a solar panel. A transparent water tank is arranged on the back of the solar panel. The transparent water tank is provided with an evaporation hole at the top and a drain branch pipe and a pumping pipe at the bottom. An electronic drain valve is arranged at one end of the drain branch pipe, and a third electric water pump is arranged on the pumping pipe. High water level drain holes are arranged on the inner wall of the transparent water tank, and the high water level drain holes are connected to the drain branch pipe through branch pipes.

[0008] Preferably, a wavy condensate guiding surface is arranged at the bottom of the back of the solar panel. Scattering nails are arranged below the bottom of the wavy condensate guiding surface. The scattering nails are connected to the wavy condensate guiding surface through brackets. A humidity sensor and a dew point meter are arranged on one side of the wavy condensate guiding surface.

[0009] Preferably, the movable bracket penetrates through the support frame. A pulley is arranged inside the support frame and is slidably connected to the movable bracket. A rack is arranged at one end of the movable bracket and meshes with the gear of the second motor.

[0010] Preferably, both sides of the lower part of the main body of the spraying device are connected to the support frame, the front and the back are connected to the walking bracket, and a connecting slider is arranged at the bottom. The slider is embedded in the bottom channel.

[0011] Preferably, the top of the main body of the spraying device is inserted into the top walking cross beam. A row of walking wheels are arranged on both sides of the top of the main body of the spraying device. The walking wheels slide on the bottom edge of the inner cavity of the top walking cross beam. A first motor is arranged in the cavity at the top of the main body of the spraying device. The driving gear of the first motor meshes with the walking rack of the walking cross beam. The top walking cross beam is fixedly connected to the ground through a cross beam support frame.

[0012] Preferably, the first electric water pump and the second electric water pump are started alternately, so that when a water pipe is spraying, the spraying in the horizontal and vertical directions is staggered. An air bag is arranged between the back plate and the spraying plate. The air bag is connected to an air pump at one end and a deflation valve at the other end. The air bag is provided with a barometric pressure sensor, and a distance sensor is arranged on the front of the back plate.

[0013] The beneficial effects of the present invention: By pushing the arc adjustment component up and down, the bending arc of the movable adjustment spray plate can be adjusted, so that the spray plate can better fit the arc-shaped precast concrete surface; the spray device is provided with a distance sensor to detect the distance between the spray device and the arc-shaped precast concrete. Due to better fitting and a shorter distance, the water spray volume can be reduced.

[0014] A plurality of spray units are arranged in the middle of the spray plate as the common group, and reserved spray groups are arranged on both sides. The water outlet area can be adjusted according to the arc length of the arc-shaped precast concrete, which can further reduce the waste of water resources.

[0015] Through the staggered spraying of two water pipes in the spray unit, when one water pipe sprays, the spraying in the horizontal and vertical directions is staggered. The water in the spraying area will flow downward, and there is no spray head spraying below, that is, the time of water on the precast concrete surface can be extended. Coupled with the negative pressure system provided at the bottom of the precast concrete, the moisture on the surface of the precast concrete can be penetrated into the precast concrete, so the efficiency is high and the water resources are saved; moreover, the negative pressure system can further collect the water inside the precast concrete (the free water precipitated during the hardening process of the concrete) into the water collection tank, making the water resources circulate better.

[0016] The solar panel on the front of the energy-saving condensation system absorbs solar radiation to generate electricity, and the wavy condensate guiding surface at the bottom has a temperature lower than the dew point temperature. During the curing process of the precast concrete, the curing spray water evaporates and exists in the air in a gaseous state. When it encounters the wavy condensate guiding surface, it condenses into water and drips from the lowest point of the surface. The dripping water droplets collide with the dispersing nails directly below to form smaller-diameter water droplets and fall onto the precast concrete. In this way, the lighting resources can be fully utilized to generate electricity, achieving the effect of saving electricity, and further condensing the moisture in the air, further saving water resources. Brief Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the curing system of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the automatic spraying system of the present invention.

[0019] Figure 3 It is a top view of the automatic spraying system of the present invention.

[0020] Figure 4 It is a schematic back view of the spraying component of the present invention.

[0021] Figure 5 It is a schematic front view of the spraying component of the present invention.

[0022] Figure 6 It is a schematic structural diagram of the spray unit of the present invention.

[0023] Figure 7Schematic diagram of the negative pressure system structure of the present invention.

[0024] Figure 8 Schematic diagram of the energy-saving condensation system structure of the present invention.

[0025] Reference numerals: Automatic spraying system 1, negative pressure system 2, energy-saving condensation system 3, power supply and water supply system 4, water channel 5, spraying device main body 11, spraying device 12, movable bracket 121, spraying assembly 123, back plate 124, spraying plate 125, spray head 126, pull rod 127, spring rod 129, arc adjustment assembly 128, fixed connecting plate 1281, adjustment slider 1210, spring rod clamping collar 1282, fixing assembly 1283, spraying water tank 17, first electric water pump 1213, second electric water pump 1214, first water pipe 1211, second water pipe 1212, negative pressure groove 24, vacuum pump 25, air inflation pump 26, micro differential pressure sensor 27, filter screen 241, water collection tank 242, water level sensor 243, electric drain valve 244, drain pipe 29, pumping pipe 28, solar panel 32, transparent water tank 33, evaporation hole 34, drain branch pipe 31, electronic drain valve 35, third electric water pump 37, high water level drain hole 36, wavy condensate guiding surface 38, dispersing nail 39, support frame 13, second motor 122, traveling bracket 14, connecting slider 15, channel 16, spraying water tank 17, distribution box 18, top traveling cross beam 21, traveling wheel 23, first motor 19, driving gear 20, traveling rack 22, air bag 1216. Detailed implementation manners

[0026] An energy-saving concrete precast component curing system provided by the present invention includes an automatic spraying system 1, a negative pressure system 2, an energy-saving condensation system 3, and a power supply and water supply system 4; the energy-saving condensation system 3 is arranged on both sides of the automatic spraying system 1, the negative pressure system 2 is arranged below the energy-saving condensation system 3, and water channels 5 are arranged on both sides of the negative pressure system 2; a water supply water tank 41 and a power supply distribution box 42 are arranged in the power supply and water supply system 4, the water supply water tank 41 is connected to the spraying water tank 17 of the automatic spraying system 1 through a flexible water pipe, and the power supply distribution box 52 is connected to the distribution box 18 of the automatic spraying system 1 through a cable; both the flexible water pipe and the cable are coiled on an automatic rewinder 43, and the automatic rewinder 43 is provided with a motor to realize the telescoping of the water pipe and the cable.

[0027] The automatic spraying system 1 includes a spraying device main body 11, spraying devices 12 are arranged on both sides of the spraying device main body 11, support frames 13 are connected to the lower parts on both sides of the spraying device main body 11, traveling brackets 14 are connected front and back, a connecting slider 15 is arranged at the bottom, the slider 15 is embedded in the bottom channel 16, and a spraying water tank 17 and a distribution box 18 are arranged inside the spraying device main body 11; The top of the main body 11 of the spraying device is inserted into the top walking cross beam 21. A row of walking wheels 23 are arranged on both sides of the top of the main body 11 of the spraying device, and the walking wheels 23 slide on the bottom edge of the inner cavity of the walking cross beam 21. A first motor 19 is arranged in the cavity at the top of the main body 11 of the spraying device, and a first driving gear 20 of the first motor 19 meshes with a walking rack 22 of the walking cross beam 21. The walking cross beam 21 is fixedly connected to the ground through a cross beam support frame.

[0028] The spraying device 12 includes two movable brackets 121. The movable brackets 121 penetrate through the support frame 13. Pulleys are arranged inside the support frame 13 and are slidably connected to the movable brackets 121. One end of the movable bracket 121 is provided with a rack and meshes with the gear of the second motor 122. The other end of the movable bracket 121 is provided with a spraying assembly 123. The spraying assembly 123 includes a back plate 124. The bottom of the back plate 124 is movably connected to the bottom of the spraying plate 125. Four rows of spray heads 126 are arranged in a normal distribution on the front of the spraying plate 125, and a pull rod 127 is arranged at the edge of the back. The two pull rods 127 are connected to a spring rod 129, and the spring rod 129 is connected through an arc adjustment assembly 128 in the middle. The two movable brackets 121 are arranged vertically and offset.

[0029] The arc adjustment assembly 128 includes a fixed connection plate 1281 and an adjustment slider 1210. The fixed connection plate 1281 is fixedly connected to the longitudinal axis of the spraying plate 125. Chute grooves are arranged on both sides of the fixed connection plate 1281, and the adjustment slider 1210 slides in the chute grooves. A spring rod clamping collar 1282 is arranged on the adjustment slider 1210, and a fixing component 1283 is arranged below the clamping piece 1282. It can be fixedly connected to the reserved screw holes of the fixed connection plate 1281 through a threaded rod, or the adjustment slider 1210 can be fixed to the fixed connection plate 1281 in the form of a pin.

[0030] By pushing down the arc adjustment assembly 128, the spring rod 129 is compressed, and the spraying plate 125 can be bent towards the front (i.e., the right spraying assembly 123 in Figure 2 ), and by pushing up, the spring rod 129 is stretched, and the spraying plate 125 can be bent towards the back (i.e., the left spraying assembly 123 in Figure 2 ). In this way, the bending arc of the movable adjustment spraying plate 125 can be adjusted. After adjusting to the required arc, the movement of the adjustment slider 1210 is restricted through the fixing component 1283, and the arc can be fixed. Two arc adjustment assemblies 128 can be set according to the actual situation, and a handle can be connected between the two adjustment sliders 1210. The spraying plate 125 is a bendable plate, and the spraying plate 125 can be a rubber plate or a bendable metal plate.

[0031] The other side of the fixed connection plate 1281 is connected to the back plate 124 through a bracket. There are openings at the corresponding positions of the back plate 124 to facilitate the operation of the arc adjustment assembly 128. The back plate 124 is fixedly connected to the movable bracket 121.

[0032] The spray water tank 17 is respectively connected to the first water pipe 1211 and the second water pipe 1212 through the first electric water pump 1213 and the second electric water pump 1214. The first water pipe 1211 and the second water pipe 1212 are arranged in a continuous "V" shape from top to bottom. Spray heads 126 are arranged at each inflection point and the end. The first water pipe 1211 and the second water pipe 1212 are arranged in an alternating manner and form a set of spray units 1215. In this embodiment, four sets of spray units 1215 are arranged respectively, and the middle two sets are the commonly used sets. The first water pipe 1211 and the second water pipe 1212 are connected to the spray heads 126 through tees, and the last spray head 126 is directly connected to the first water pipe 1211. The spray heads 126 are conventional technologies and can select spray heads with different water droplet diameters according to requirements. The first water pipe 1211 and the second water pipe 1212 are soft water pipes, and the main purpose is to facilitate the arc adjustment of the spray plate 125.

[0033] The two sides are reserved spray groups. The main purpose is to adjust the spray range according to the arc length of the curved concrete, which can save water. In addition, the first electric water pump 1213 and the second electric water pump 1214 are started alternately, so that when one water pipe is spraying, the spraying in the horizontal and vertical directions is staggered, and the water in the spraying area will flow downward, and there is no spray head spraying below, that is, the time of water on the surface of the precast concrete can be extended. In the conventional technology, the spray heads spray water at the same time, causing a large amount of water to flow to the bottom of the precast concrete quickly. The spray device 12 can not only save water but also achieve a better curing effect.

[0034] Since there will be a reaction force when the spray head 126 is spraying, which causes the spray plate 125 to shake. An airbag 1216 is arranged between the back plate 124 and the spray plate 125. The airbag 1216 is connected to an air pump, and the other end is connected to a deflation valve. The airbag 1216 is provided with a pressure sensor. The air pressure in the airbag 1216 cannot cause the spray plate 125 to change its arc, and it can be used to fill most of the gaps. The water pipes and related devices need to be processed to avoid puncturing the airbag 1216.

[0035] A distance sensor 1217 is arranged on the front surface of the back plate 124 to monitor the distance from the precast member.

[0036] The negative pressure system 2 includes a negative pressure groove 24. The negative pressure groove 24 is respectively connected to a vacuum pump 25 and an inflation pump 26 through pipe orifices. Holes are reserved in the negative pressure groove 24 for installing the joints of a differential pressure sensor 27; the differential pressure sensor 27, the vacuum pump 25, and the inflation pump 26 are arranged outside the negative pressure groove 24; a filter screen 241 is arranged at the bottom of the negative pressure groove 24, a water collection tank 242 is arranged under the filter screen 241, a water level sensor 243 is arranged inside the water collection tank 242, the water level sensor 243 is connected to an electric drain valve 244, the bottom of the water collection tank 242 is connected to a drain pipe 29, and one side of the water collection tank 242 is connected to a pumping pipe 28.

[0037] The water in the water collection tank 242 cannot be completely drained, and a certain amount of water needs to be ensured. Firstly, it is to ensure the negative pressure in the negative pressure groove 24, and secondly, it is to provide water for the energy-saving condensation system 3. The water source is stored underground with a constant temperature and a relatively lower water temperature compared to the outdoor water source.

[0038] The negative pressure groove 24 adopts a sealant form, and can maintain good sealing performance when the precast concrete member is placed on the negative pressure groove 24. The negative pressure groove 24 is set as an arc-shaped groove, and can also be designed into different shapes according to different precast members.

[0039] Utilize the atmospheric pressure difference to penetrate the water on the surface of the curing object into the precast concrete, and the water inside the precast concrete (the free water separated during the hardening process of the concrete) is actively drained into the water collection tank 242 through the negative pressure system 2, which can reduce the need for external water replenishment; if a curing agent is added to the sprayed water, the negative pressure system 2 can make the curing agent penetrate into the precast concrete, and the concrete curing effect is better.

[0040] The energy-saving condensation system 3 includes a solar panel 32. A transparent water tank 33 is arranged on the back of the solar panel 32. The transparent water tank 33 has an evaporation hole 34 at the top and a drain branch pipe 31 and a pumping pipe 28 at the bottom; an electronic drain valve 35 is arranged at one end of the drain branch pipe 31, and a third electric water pump 37 is arranged on the pumping pipe 28; a high water level drain hole 36 is arranged on the inner wall of the transparent water tank 33, and the high water level drain hole 36 is connected to the drain branch pipe 31 through a branch pipe to ensure that the water level does not exceed the top of the transparent water tank 33.

[0041] A wavy condensate guiding surface 38 is arranged at the bottom of the back of the solar panel 32. Scattering nails 39 are arranged below the bottom of the wavy condensate guiding surface 38. A plurality of scattering nails 39 are connected to the wavy condensate guiding surface 38 through brackets; a humidity sensor and a dew point meter are arranged on one side of the wavy condensate guiding surface 38. The start and stop of the electronic drain valve 35 and the third electric water pump 37 are controlled by the data measured by the humidity sensor and the dew point meter.

[0042] The front side of the solar panel 32 absorbs solar radiation for power generation, and its own temperature rises. The back side cools the solar panel 32 below the dew point temperature through the transparent water tank 33; further, the temperature of the wavy condensate guiding surface 38 is made lower than the dew point temperature; when the temperature of the back side of the solar panel 32 is not high, the temperature drops through evaporation in the transparent water tank 33, and when the temperature is high, the frequency of adding cooling water is increased; During the curing process of the precast concrete, the curing spray water evaporates and exists in the air in a gaseous state. When it encounters the wavy condensate guiding surface 38, it condenses into water and drips from the lowest point of the surface. The dripping water droplets collide with the dispersion nails 39 directly below to form smaller-diameter water droplets that fall onto the precast concrete. The transparent water tank 33 and the bottom of the solar panel 32 increase the heat exchange area to make the cooling effect better. In addition, the aperture of the dispersion nails 39 and the shape of the nail heads are conventional techniques, and the purpose is to disperse the water droplets.

[0043] In addition, water temperature sensors are installed in both the water collection tank 242 and the transparent water tank 33 to monitor whether the cooling effect can be achieved; the pumping pipe 28 can also be connected to a cold water tank, and the water in the cold water tank is controlled at about 5°C by a refrigerator.

[0044] The electric energy of the solar panel 32 is stored as power by the storage battery, and the electric energy is distributed through the control box. It can be connected to the motor, various electric switches, and electric pressure relief valves in this embodiment. Of course, in order to ensure its normal operation, all electrical devices and components also need to be connected to a stable power supply.

[0045] The drain pipe 29 is connected to the water treatment device and then to the reservoir, and the reservoir supplies water to each water supply tank 41 through a water pump.

[0046] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An energy-saving precast concrete maintenance system, characterized in that: The system includes an automatic spray system, a negative pressure system, an energy-saving condensation system, and a power supply and water supply system; energy-saving condensation systems are arranged on both sides of the automatic spray system, and a negative pressure system is arranged below the energy-saving condensation system; The automatic sprinkler system comprises a sprinkler device body, sprinkler devices are arranged on both sides of the sprinkler device body, including two movable brackets, a sprinkler assembly is arranged at the other end of the movable bracket, the sprinkler assembly comprises a back plate, the bottom of the back plate is movably connected to the bottom of the sprinkler plate, a sprinkler head is arranged on the front of the sprinkler plate, a pull rod is arranged at the back edge, the pull rods on both sides are connected to spring rods, and the spring rods are connected through the curvature adjustment assembly in the middle.

2. The energy-saving precast concrete component maintenance system according to claim 1, characterized in that: The arc adjustment assembly includes a fixed connecting plate and an adjusting slider. The fixed connecting plate is fixedly connected to the longitudinal axis of the spray plate. Slide grooves are provided on both sides of the fixed connecting plate, and the adjusting slider slides in the slide grooves. A spring rod clamping ring is provided on the adjusting slider, and a fixed assembly is provided under the clamping member.

3. The energy-saving precast concrete component maintenance system according to claim 2, characterized in that: A spray water tank and a distribution box are arranged inside the main body of the spray device. The spray water tank is connected to the first water pipe and the second water pipe respectively through the first electric water pump and the second electric water pump. The first water pipe and the second water pipe are arranged in a continuous "V" shape from top to bottom, and a spray head is arranged at each turning point and the end. The first water pipe and the second water pipe are staggered and form a group of spray units; the multiple groups of spray units in the middle of the spray plate are set as common groups, and the two sides are reserved spray groups.

4. The energy-saving precast concrete component maintenance system according to claim 1, characterized in that: The negative pressure system includes a negative pressure groove, which is connected to a vacuum pump and an air pump through pipe openings respectively, and holes are reserved in the pressure groove for installing the joints of a micro-pressure differential sensor; the micro-pressure differential sensor, the vacuum pump and the air pump are arranged outside the pressure groove; a filter is arranged at the bottom of the pressure groove, a water collecting tank is arranged under the filter, a water level sensor is arranged inside the water collecting tank, the water level sensor is connected to an electric drain valve, the bottom of the water collecting tank is connected to a drain pipe, and one side of the water collecting tank is connected to a pumping pipe.

5. The energy-saving precast concrete component maintenance system according to claim 1, characterized in that: The energy-saving condensation system includes a solar panel, a transparent water tank is arranged on the back of the solar panel, the transparent water tank, the top of the transparent water tank is provided with evaporation holes, and a drainage branch pipe and a pumping pipe are arranged at the bottom; an electronic drainage valve is arranged at one end of the drainage branch pipe, and the pumping pipe is provided with a third electric water pump; a high water level drainage hole is arranged on the inner wall of the transparent water tank, and the high water level drainage hole is connected to the drainage branch pipe through a branch pipe.

6. The energy-saving precast concrete component maintenance system according to claim 5, characterized in that: A wavy condensation water guiding surface is arranged at the bottom of the back side of the solar panel, and breaking nails are arranged below the bottom of the wavy condensation water guiding surface, and the breaking nails are connected to the wavy condensation water guiding surface through a bracket; a humidity sensor and a dew point meter are arranged on one side of the wavy condensation water guiding surface.

7. The energy-saving precast concrete component maintenance system according to claim 1, characterized in that: The movable bracket penetrates the support frame, a pulley is arranged inside the support frame and is slidably connected with the movable bracket; a rack is arranged at one end of the movable bracket and meshes with the gear of the second motor.

8. The energy-saving precast concrete component maintenance system according to claim 1, characterized in that: The lower part of the spray device body is connected to support frames on both sides, and is connected to walking frames at the front and back. A connecting slide block is arranged at the bottom, and the slide block is embedded in the bottom groove.

9. The energy-saving precast concrete component maintenance system according to claim 1, characterized in that: The top of the spray device body is inserted into the top walking beam, and a row of walking wheels are arranged on both sides of the top of the spray device body, and the walking wheels slide on the bottom edge of the inner cavity of the top walking beam; A first motor is arranged in the cavity at the top of the main body of the spray device, and a driving gear of the first motor is meshed with a traveling rack of the traveling crossbeam; The top walking beam is fixedly connected to the ground through a beam support frame.

10. The energy-saving precast concrete component maintenance system according to claim 3, characterized in that: The first electric water pump and the second electric water pump are started alternately, so that when a water pipe is spraying, the spraying is staggered in both the horizontal and vertical directions; An air bag is arranged between the back plate and the spray plate. The air bag is connected to an air pump and the other end is connected to an air release valve. The air bag is provided with an air pressure sensor. A distance sensor is arranged on the front of the back plate.

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