Water-saving high-temperature drying type heliostat cleaning vehicle

Abstract

The invention provides a water-saving high-temperature drying type heliostat cleaning vehicle, relates to the technical field of cleaning equipment, and solves the problems that dust of heliostats is hardened and the water consumption is large due to the fact that dust is easily adsorbed by residual cleaning water on a heliostat surface of an existing heliostat field cleaning vehicle. According to the technical scheme, a platform support is arranged at the front end of a mechanical arm, front-row normal-temperature compressed air nozzles and rear-row high-temperature compressed air nozzles are arranged on the two sides close to the front face of the platform support respectively, a row of disc brushes are arranged in the middle of the platform support, and front-row high-pressure water nozzles and rear-row high-pressure water nozzles are arranged on the two sides of the disc brushes respectively; the cleaning vehicle body is provided with a hydraulic system, a compressed air system with a heater and a high-pressure water system; high-temperature compressed air is adopted for drying, dust can be prevented from being accumulated again in a short time, the interval between two times of cleaning is prolonged, cleaning water for the next time is saved, cleaning water on the mirror face can be rapidly dried, the heliostat cleaning effect is improved, and the water consumption is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, in particular to a water-saving high-temperature drying heliostat cleaning vehicle, which is suitable for cleaning and maintaining solar thermal power generation heliostats. Background Art

[0002] Tower solar thermal power plants are currently one of the mainstream solar thermal power plants. The circular heliostat field gathers sunlight to the collector tower in the center to generate electricity. The cleaning of heliostats is a very important maintenance link. The cleaning vehicles currently in use all use water spraying and brushing to clean. For example, the patent document with announcement number CN115569877A discloses a heliostat cleaning vehicle, which uses a tractor and trailer to carry a control cabinet, a water supply mechanism, a generator set, a cleaning mechanism and a mechanical arm. The cleaning mechanism uses a water spray mechanism, a scraper and a roller brush on the cleaning frame, and the heliostat is cleaned and maintained by the cooperation of these components. The patent document with announcement number CN118808197A also discloses a tower solar thermal heliostat cleaning vehicle, which uses a cleaning component and a mechanical arm mounted on the vehicle body, and the heliostat is cleaned by the spray pipe and brush wheel arranged on the truss on the mechanical arm. However, the current technical difficulties are as follows: if only water is sprayed and brushed for cleaning, the water remaining on the mirror surface will quickly absorb dust, causing the mirror surface cleanliness to drop rapidly in a short time, and the cleaning effect is not ideal. Solar thermal power plants are generally built in Gobi areas, where the air dust content is high. Dust will fall on the mirror surface within a few minutes after cleaning. The dust and the cleaning water remaining on the mirror surface combine to form relatively stubborn hardened dust. The cleaning consumes a lot of water. In order to clean the floating dust and stubborn dust with high adhesion on the mirror surface, about 0.5L of water is required for cleaning each square meter of the mirror surface. According to the scale of 10,000 heliostats in a power plant, each heliostat has an area of ​​100 square meters. The total area is 1 million square meters, and 500,000 liters of water are used for cleaning once, which is 500 tons of water. It is very difficult to get water in the Gobi region. Summary of the invention

[0003] The purpose of the present invention is to provide a water-saving high-temperature drying heliostat cleaning vehicle, which solves the problem that the cleaning water residue on the heliostat surface is easy to absorb dust, resulting in hardening of heliostat dust and a large amount of water consumption in the existing heliostat field cleaning vehicle. The cleaning water can be dried quickly, the cleaning effect of the heliostat is improved, and water consumption is saved.

[0004] The technical solution adopted by the present invention is: the water-saving high-temperature drying heliostat cleaning vehicle comprises: a cleaning vehicle body, the cleaning vehicle body is provided with a mechanical arm for driving a cleaning device to clean the heliostat, and its technical key points are: the cleaning device is provided with a platform bracket at the front end of the mechanical arm, and front row normal temperature compressed air nozzles and rear row high temperature compressed air nozzles are respectively provided on both sides close to the front of the platform bracket, a row of disc brushes are provided in the middle of the platform bracket, and front row high pressure water nozzles and rear row high pressure water nozzles are respectively provided on both sides of the disc brushes; the cleaning vehicle body is provided with a hydraulic system, a compressed air system with a heater, and a high pressure water system; the hydraulic system is connected and drives the mechanical arm and the disc brush through a hydraulic station, a hydraulic solenoid valve group and a hydraulic pipeline, the compressed air system is used to provide compressed air for the normal temperature compressed air nozzle and the rear row high temperature compressed air nozzle through a compressed air pump, a solenoid valve and a compressed air pipeline; the high pressure water system is used to provide high pressure water for the front and rear row high pressure water nozzles through a high pressure water pump and a high pressure water pipeline.

[0005] The front side of the platform bracket is rectangular, and the first row along the length direction is provided with a front row of normal temperature compressed air nozzles, the second row is provided with a front row of high pressure water nozzles, the third row is provided with disc brushes, the fourth row is provided with a rear row of high pressure water nozzles, and the fifth row is provided with high temperature compressed air nozzles.

[0006] The compressed air pipeline of the compressed air system passes through the cleaning vehicle body generator and is first heated by the engine and then heated by the heater.

[0007] The advantages and beneficial effects of the present invention are as follows: the front row of normal temperature compressed air nozzles used in the present invention are used for preliminary blowing and spraying to clean the floating dust on the mirror surface. Cleaning the floating dust first can effectively reduce the amount of water required for cleaning; the front row of high pressure water nozzles are used to spray water to rinse the stains with strong adhesion, and the mirror surface is further cleaned by a disc brush; the rear row of high pressure water nozzles spray water to thoroughly rinse the mirror surface, and the rear row of high temperature compressed air nozzles dry the mirror surface. After cleaning, no water remains, and hardened stubborn dust that is difficult to clean will not be formed. Therefore, the use of normal temperature compressed air for cleaning can effectively save the amount of water used for cleaning; the use of high pressure water and a disc brush for cleaning can thoroughly remove stubborn dust; the use of high temperature compressed air for drying can avoid the accumulation of dust again in a short period of time, extend the interval between two cleanings, and save water for the next cleaning. It can quickly dry the cleaning water of the mirror surface, improve the cleaning effect of the heliostat, and save water. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The present invention is further described below in conjunction with the accompanying drawings.

[0009] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 is a general architecture diagram of an embodiment of the present invention; Figure 3It is a schematic diagram of the structure of the cleaning device of the present invention; Figure 4 This is a diagram of the hydraulic system control brush plate structure of the present invention; Figure 5 It is a structural diagram of a compressed air system of the present invention; Figure 6 This is a diagram of the compressed air system architecture of the present invention; Figure 7 This is a diagram of the high-pressure water system architecture of the present invention; Figure 8 This is a diagram of the power system transmission architecture of the present invention.

[0010] Explanation of the serial numbers in the figure: 1 cleaning vehicle body, 2 mechanical arm, 3 cleaning device, 4 hydraulic system, 5 compressed air system, 6 high-pressure water system, 31 front row normal temperature compressed air nozzle, 32 front row high-pressure water nozzle, 33 hydraulic brush plate, 34 rear row high-pressure water nozzle, 35 rear row high-temperature compressed air nozzle, 36 platform bracket, 41 hydraulic station, 42 hydraulic solenoid valve group, 43 hydraulic pipeline, 51 compressed air pump, 52 pneumatic solenoid valve, 53 normal temperature compressed air pipeline, 54 high temperature compressed air pipeline, 55 heater, 61 high-pressure water pump, 62 high-pressure water valve, 63 high-pressure water pipeline. DETAILED DESCRIPTION

[0011] according to Figure 1-8 Describe the specific scheme of the present invention in detail, implement for example Figure 1 and Figure 2 As shown, a water-saving high-temperature drying heliostat cleaning vehicle comprises: a cleaning vehicle body 1, a cleaning device 3, a mechanical arm 2, a hydraulic system 4, a compressed air system 5 with a heater, and a high-pressure water system 6.

[0012] The cleaning vehicle body 1 can use conventional tractor and trailer equipment, such as the Sinotruk HOWO 371 chassis, with a load capacity of 14 tons and an engine output power of 272KW. A mechanical arm 2 is set on the cleaning vehicle body 1, and a hydraulic mechanical arm can be used, such as a Jining Guihe 5-ton hydraulic arm. The hydraulic mechanical arm is installed directly behind the cab, and the range of movement covers the entire left side of the vehicle body. It contains five motion joints, the arm span can reach 5 meters, and the rated load capacity is 5 tons. The cleaning device 3 can be stably controlled to perform cleaning operations. The cleaning device installed at the front end of the hydraulic mechanical arm 2 can be driven, and the mechanical arm 2 can move up, down, left, and right, and rotate.

[0013] The cleaning device 3 is a platform support 36 mounted on the front end of the robot arm 2. Figure 3As shown, a rectangular support panel can be used to set the front end of the cleaning component, and the front row normal temperature compressed air nozzles 31 and the rear row high temperature compressed air nozzles 35 are respectively arranged on both sides near the front of the platform bracket 36. A row of disc brushes is arranged in the middle of the platform bracket 36, and a hydraulic disc brush 33 can be used. The front row high pressure water nozzles 32 and the rear row high pressure water nozzles 34 are respectively arranged on both sides of the disc brush. The arrangement of each cleaning component can be arranged along the length direction of the platform bracket. The first row is provided with a front row normal temperature compressed air nozzle 31, with a pressure of 0.8MP and an air volume of 10 cubic meters / minute; the second row is provided with a front row high pressure water nozzle 32, with a water pressure of 10MP and a water spray volume of 30L / min; the third row is provided with a hydraulic disc brush 33, and the hydraulic disc brush speed is 240r / min; the fourth row is provided with a rear row high pressure water nozzle 34, with a water pressure of 10MP and a water spray volume of 30L / min; the fifth row is provided with a rear row high temperature compressed air nozzle 35, with a pressure of 0.8MP, an air volume of 10 cubic meters / minute, and a temperature not lower than 80°C.

[0014] The cleaning vehicle body 1 is provided with a hydraulic system 4, a compressed air system 5 with a heater and a high-pressure water system 6. Figure 1 and Figure 4 As shown, the hydraulic system 4 includes a hydraulic station 41, a hydraulic solenoid valve group 42 and a hydraulic pipeline 43, which connect and drive the mechanical arm 2 and the hydraulic disc brush 33 driven by the hydraulic motor. The hydraulic pump of the hydraulic station 41 can obtain power through the main shaft of the cleaning vehicle body 1, and provide power for the hydraulic mechanical arm and the hydraulic disc brush through the hydraulic solenoid valve group 42 and the hydraulic pipeline 43.

[0015] like Figure 3 , Figure 5 and Figure 6 As shown, the compressed air system 5 provides compressed air for the normal temperature compressed air nozzle and the rear high temperature compressed air nozzle through the compressed air pump 51, the pneumatic solenoid valve 52 and the compressed air pipeline. The air compressor is connected to the normal temperature compressed air pipeline 53 and the high temperature compressed air pipeline 54 of the compressed air pipeline respectively, and then connected to the front normal temperature compressed air nozzle 31 and the rear high temperature compressed air nozzle 35 through the pneumatic solenoid valve 52 respectively. The compressed air pump 51 obtains power from the main shaft of the automobile chassis, and provides compressed air to the compressed air nozzle through the pneumatic solenoid valve 52 and the compressed air pipeline; the high temperature compressed air pipeline first bypasses the cleaning vehicle body engine for primary heating, and then passes through the heater 55 for secondary heating and temperature rise. The heater 55 can be heated by winding the high temperature compressed air pipeline with a heating coil to make the compressed air temperature reach 80°C. The power supply of the heater 55 can be powered by a lithium battery pack with a capacity of 30kwh.

[0016] like Figure 1 and Figure 7As shown, the high-pressure water system 6 includes a connected high-pressure water pump 61, a high-pressure water pipeline 61 and a high-pressure water valve 62. The high-pressure water valve 62 is respectively connected to the front high-pressure water nozzle 32 and the rear high-pressure water nozzle 34 to provide high-pressure water for the high-pressure water nozzle of the cleaning device 3. The high-pressure water pump obtains power from the main shaft of the automobile chassis.

[0017] like Figure 8 As shown, the cleaning vehicle body can use the on-board engine to transmit power through the rotating shaft and the gear box as the power system. The gear box is provided with a high-pressure water pump clutch, an air compressor clutch and a hydraulic pump clutch, which respectively drive the high-pressure water pump of the high-pressure water system, the air compressor of the compressed air system and the hydraulic pump of the hydraulic system. The on-board cleaning control system PLC equipment and the industrial computer can be used to control the cleaning components of the robotic arm, the hydraulic system, the compressed air system and the high-pressure water system.

[0018] The cleaning process of the water-saving high-temperature drying heliostat cleaning vehicle of the present invention is as follows: Drive the cleaning vehicle into the working area, start the hydraulic system 4, the compressed air system 5, and the high-pressure water system 6 in sequence; the cleaning device 3 starts to work, and the normal temperature compressed air nozzle 31, the front row high-pressure water nozzle 32, the hydraulic brush disc 33, the rear row high-pressure water nozzle 34, and the high-temperature compressed air nozzle 35 in the cleaning device pass through the heliostat in sequence; step 1, the normal temperature compressed air from the first row of normal temperature compressed air nozzles 31 blows out normal temperature compressed air to clean the floating dust and dust with low adhesion on the surface of the heliostat to clean the floating dust; step 2, the high-pressure water sprayed by the front row high-pressure water nozzles 32 of the second row wets the mirror surface for cleaning; step 3, the third row hydraulic disc brush 33 peels off the dust and the mirror surface for brushing; step 4, the high-pressure water sprayed by the rear row high-pressure water nozzles 34 of the fourth row rinses the dust clean to perform the flushing process; step 5, the high-temperature compressed air sprayed by the rear row high-temperature compressed air nozzles of the fifth row dries the mirror surface. To complete the cleaning process of the heliostat, therefore, the use of room temperature compressed air for cleaning effectively saves the amount of water used for cleaning; the use of high-pressure water and disc brushes for cleaning can thoroughly remove stubborn dust; the use of high-temperature compressed air for drying can avoid dust accumulation again in a short period of time, extend the interval between two cleanings, and save water for the next cleaning. It can quickly dry the cleaning water on the mirror surface, improve the cleaning effect of the heliostat, and save water.

[0019] In summary, the purpose of the present invention is achieved.

Claims

1. A water-saving high-temperature drying heliostat cleaning vehicle, comprising: A cleaning vehicle body is provided with a mechanical arm for driving a cleaning device to clean a heliostat, and is characterized in that: the cleaning device is provided with a platform bracket at the front end of the mechanical arm, and front row normal temperature compressed air nozzles and rear row high temperature compressed air nozzles are respectively provided on both sides close to the front of the platform bracket, a row of disc brushes is provided in the middle of the platform bracket, and front row high pressure water nozzles and rear row high pressure water nozzles are respectively provided on both sides of the disc brushes; the cleaning vehicle body is provided with a hydraulic system, a compressed air system with a heater, and a high pressure water system; the hydraulic system is connected and drives the mechanical arm and the disc brush through a hydraulic station, a hydraulic solenoid valve group, and a hydraulic pipeline, and the compressed air system is used to provide compressed air to the normal temperature compressed air nozzle and the rear row high temperature compressed air nozzle through a compressed air pump, a solenoid valve, and a compressed air pipeline; the high pressure water system is used to provide high pressure water to the front and rear row high pressure water nozzles through a high pressure water pump and a high pressure water pipeline.

2. The water-saving high-temperature drying heliostat cleaning vehicle according to claim 1, characterized in that: The front side of the platform bracket is rectangular, and the first row along the length direction is provided with a front row of normal temperature compressed air nozzles, the second row is provided with a front row of high pressure water nozzles, the third row is provided with disc brushes, the fourth row is provided with a rear row of high pressure water nozzles, and the fifth row is provided with a rear row of high temperature compressed air nozzles.

3. The water-saving high-temperature drying heliostat cleaning vehicle according to claim 1, characterized in that: The compressed air pipeline of the compressed air system passes through the cleaning vehicle body generator and is first heated by the engine and then heated by the heater.

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