496 results about "Energy reduction" patented technology

The invention discloses an intelligent factory data intelligent analysis and management system, and relates to the technical field of data analysis. Multi-source data are uniformly accessed through an industrial gateway, and a knowledge graph is constructed after cleaning and standardization; an edge node deploys a lightweight AI model to realize real-time analysis such as equipment anomaly detection; intelligent distribution of cloud side tasks is realized based on a decision model; optimizing production scheduling and quality control by using an algorithm; a zero-trust architecture is adopted to guarantee safety, and efficient energy management is realized in combination with reinforcement learning; all the modules work cooperatively, and the intelligent level of a factory is improved. The operation efficiency and quality of the intelligent factory are effectively improved. Efficient data fusion processing is realized, and equipment anomaly detection is more accurate; the order delivery period is shortened, and the product reject ratio is reduced; network security protection is enhanced, and energy waste is reduced; the decision response speed is accelerated, the decision accuracy is improved, cost reduction and efficiency improvement of enterprises are comprehensively assisted, and the competitiveness is enhanced.

The invention provides a coal mine fluidized mining dynamic disaster prevention and control method and system, and relates to the technical field of disaster prevention and control. The method comprises the following steps: establishing a risk map based on mining area multi-field information, setting a seismic source intensity upper limit, a path attenuation target and an energy absorption displacement target, implementing in-situ transformation under the constraint of a control index to form a distributed micro-fracture network, and calculating a residual dynamic load spectrum to weaken a seismic source; according to the residual dynamic load spectrum, constructing an artificial barrier and an energy absorption band with wave impedance abrupt change so as to realize propagation energy reduction; a flexible energy absorption protection system is configured according to the residual dynamic load spectrum and the propagation attenuation coefficient, micro-seismic, stress and displacement data are monitored in real time, and parameter self-adaptive correction is achieved through linkage treatment triggered by a threshold value. According to the method, a source-diameter-field integrated active prevention and control system is constructed, dynamic regulation and control and closed-loop management in the fluidized mining process are achieved, and the intrinsic safety and the intelligent level of deep mining are remarkably improved.

The utility model discloses a high-temperature-resistant flash valve exhaust nozzle structure which comprises a pipe body and an energy reduction structure. The energy reduction structure comprises at least two stages of ceramic energy reduction units which are connected in series, and the ceramic energy reduction units are connected in the pipe body; the ceramic energy reduction unit comprises a first-stage energy reduction assembly and a second-stage energy reduction assembly; the first-stage energy reduction assembly comprises a first ceramic spray pipe and a first liner pipe; the first lining pipe sleeves the outer side of the first ceramic spray pipe; the first liner tube is arranged in the tube body; the second-stage energy reduction assembly comprises a second ceramic spray pipe and a second liner pipe; the second lining pipe sleeves the outer side of the second ceramic spray pipe; the second liner tube is arranged in the tube body; the end of the first ceramic spray pipe abuts against the end of the second ceramic spray pipe. And a medium flows out of the pipe body after sequentially passing through the first-stage energy reduction assembly and the second-stage energy reduction assembly from the inlet end of the pipe body. According to the multi-stage energy reduction device, the multi-stage energy reduction assemblies connected in series are adopted, medium pressure can be decomposed into stage-by-stage release, and therefore the fluid speed is effectively reduced, and dependence on a high-temperature adhesive is also avoided.

The invention relates to the technical field of virtual power plants, and discloses a virtual power plant load prediction and optimization control method, which comprises the following steps: obtaining historical operation load data of a virtual power plant for characteristic decomposition to obtain a trend component, a seasonal component and a residual component, inputting the trend component, the seasonal component and the residual component into a load prediction model based on LSTM (Long Short Term Memory), and obtaining a load prediction value in a future set time period; calculating theoretical output of renewable energy sources to determine supply and demand conditions of energy supply and load prediction values; controlling energy storage charging or discharging and controlling the fossil fuel generator set to be started or stopped by combining the peak and valley conditions of the load prediction value; actual operation data of the virtual power plant are collected in real time, deviation meeting the predicted value is compared, and the energy storage charging and discharging strategy and the fossil fuel generator set output strategy are adjusted. According to the method, by accurately capturing load characteristics and cooperatively optimizing a multi-energy scheduling and dynamic adjustment mechanism, the operation stability and economy of the virtual power plant are improved, the energy waste is reduced, and the adaptability to a power system is enhanced.

The invention relates to a waste water auxiliary drainage device for a rotary screen paper machine, which comprises a composite roller, a waste water drainage device and a waste water drainage device, wherein the composite roller is used for extruding coarse cotton cloth and is positioned above a screen part; the water guide mechanism is used for guiding and draining water extruded from the coarse cotton cloth; the water guide mechanism comprises a drainage assembly used for guiding water out; the energy reducing assembly is used for reducing the impact potential energy of water on the drainage assembly; and the water guide mechanism is arranged behind the composite roller along the motion direction of the coarse cotton cloth. According to the rotary screen paper machine, a traditional linear mop is improved into an innovative and adjustable splayed totally-closed dewatering device, so that the problem of water removal in a composite area of the rotary screen paper machine is successfully solved, and the quality of a final product is effectively improved.

The invention relates to the technical field of photovoltaic power generation, in particular to a photovoltaic charging and discharging control method and system based on a direct-current coupling optical storage all-in-one machine, and the method comprises the steps: monitoring system operation parameters in real time; after the countercurrent risk is judged, energy storage is preferentially utilized to absorb redundant electric energy; when the stored energy is saturated, the photovoltaic output is dynamically adjusted instead of shutdown; when photovoltaic power generation is insufficient, the gap is supplemented through energy storage discharge. By monitoring system operation parameters in real time and dynamically coordinating photovoltaic power generation, energy storage charging and discharging and load requirements, photovoltaic energy is utilized to the maximum extent while reverse current of a power grid is avoided, redundant electric energy is preferentially stored in a battery, and photovoltaic output is intelligently adjusted instead of direct shutdown after energy storage is saturated; and when the load demand is higher than that of photovoltaic power generation, a gap is supplemented through energy storage discharge, so that energy waste is remarkably reduced, the system operation time is prolonged, the overall power generation income and economy are improved, and safe and stable operation of a power grid is ensured.

The invention relates to the technical field of waste gas recovery, and discloses a waste gas recovery treatment device and a printing waste gas treatment technology.The waste gas recovery treatment device comprises a main shell, an auxiliary shell and a strip-shaped shell which are integrally arranged, the auxiliary shell is located on one side of the main shell, and the strip-shaped shell extends to the top of the auxiliary shell from the top of the main shell; two groups of main adsorbers and a plurality of groups of auxiliary adsorbers are arranged in an inner cavity of the main shell. By arranging the heat exchanger, the auxiliary shell, the two sets of main adsorbers and the driving assembly, the two main adsorbers connected in series can be switched for use, rapid saturation of a single main adsorber is avoided, the saturated adsorbers can be subjected to desorption regeneration in the auxiliary shell, recycling is achieved, the overall adsorption efficiency of harmful substances is improved, and in addition, the adsorption efficiency of the harmful substances is improved. By arranging the heat exchange assembly, the rapidly saturated main adsorber can be cooled, then the safety risk is reduced, overheating ignition is prevented, the high temperature of the main adsorber can also heat a nitrogen source for desorption, energy loss is reduced, and more energy is saved.

The invention provides a multi-satellite cooperative beam position distribution method, system and device, and an electronic device, which can solve the technical problem of low operation efficiency in a multi-satellite multi-beam position scene in the prior art. The method comprises the following steps: determining a coverage wave position set of a to-be-distributed satellite at a first moment; determining a to-be-transmitted service priority of each coverage wave position in the coverage wave position set; according to the priority of the service to be transmitted, based on a first preset condition, determining a first target satellite of each coverage wave position; the remaining irradiation time of the first target satellite is greater than or equal to a preset beam position distribution period; and according to the first target satellite and the coverage wave position, obtaining a wave position distribution result of each to-be-distributed satellite. And invalid calculation is reduced through priority screening of to-be-transmitted services. And screening the first target satellites of which the residual irradiation time is greater than or equal to the preset period, excluding satellites of which the time does not reach the standard, simplifying a matching link and ensuring continuity, thereby preventing multiple satellites from competing for resources, reducing interference and reducing energy loss.

The invention relates to the technical field of refrigeration equipment intelligent supervision, and discloses a refrigeration equipment operation supervision method and system based on multi-dimensional data analysis, and the method comprises the steps: collecting multi-dimensional operation data of refrigeration equipment; remote start-stop control and operation parameter adjustment are carried out on the equipment, and a control task is automatically executed based on a preset schedule; monitoring equipment states in real time, setting dynamic early warning thresholds according to equipment types and working conditions, and performing graded early warning; fusing and analyzing the multi-dimensional data, generating a correlation analysis chart and calculating a comprehensive energy efficiency ratio; and an operation strategy is dynamically optimized through a data driving model, and the optimal number of water chilling units, the chilled water temperature and the cooling tower fan rotating speed are solved. The system corresponds to the method. According to the application, the problems of single traditional supervision data, low control efficiency, inaccurate early warning and the like are solved, closed-loop supervision is realized, the equipment operation efficiency is improved, and the energy waste is reduced.

The invention discloses a portable wireless radio frequency switching method and system, a medium and a program product, and relates to the field of transmission, in the method, a switching device obtains a radio frequency signal strength value of a device to be switched; the switching device sends an awakening instruction and a handshake request to a to-be-switched device which is in a deep sleep state and keeps low-power-consumption monitoring; executing the handshake request to establish a secure communication connection; the switching device sends the encrypted radio frequency configuration data to a device to be switched, and the device to be switched writes the encrypted radio frequency configuration data into a nonvolatile memory; after the equipment to be switched completes writing of the encrypted radio frequency configuration data, a confirmation signal is sent to the switching equipment, the deep sleep state is automatically switched to, and low-power-consumption monitoring is kept. On the basis of keeping certain power to monitor the configuration request, low-power-consumption standby is realized, so that energy waste is reduced, and the use cost of equipment is reduced.

The invention discloses an ion thinning instrument control method based on a self-adaptive gradient energy reduction algorithm, and belongs to the technical field of transmission electron microscope (TEM) sample preparation. The problem that a traditional ion thinning technology has many limitations is solved, dynamic optimization of parameters such as ion beam energy, beam current density and sample temperature is achieved through the self-adaptive gradient energy reduction algorithm, and the sample preparation efficiency is remarkably improved; by combining multi-modal data acquisition and dynamic gradient optimization, the thinning process can be accurately controlled, and the sample quality is improved; sample damage is effectively avoided by combining a damage constraint mechanism and self-adaptive step length control, and the stability of the preparation process is improved; the method is suitable for various materials through a pre-stored optimization path library, and has wide applicability; therefore, the energy of the ion beam is optimized, the incident angle and the beam density are dynamically adjusted, and the thinning instrument is controlled.

The invention relates to the field of hydrogenation device pipeline temperature-maintaining hot water heat exchangers, in particular to a hydrogenation device temperature-maintaining hot water heat exchanger structure which comprises a bottom frame, a sliding plate, side plates, rectangular frames, a transverse pipe, a spiral pipe, a wiping unit, a driving assembly, a pipeline assembly, a connecting assembly and a driving unit. Petroleum flows into the spiral pipe through the transverse pipe and exchanges heat with hot water in the closed frame. The wiping unit is in magnetic linkage with a magnetic ring through an electromagnetic plate to synchronously clean the inner side and the outer side of a spiral pipe, and a brush assembly cleans scale on the inner wall of a rectangular frame; the branch water inlet pipe is matched with multiple pipelines to operate alternately, water can be supplied selectively, and the sliding plate and the supporting plate are linked to achieve separation of the rectangular frame and convenient disassembly and assembly of the spiral pipe. The device improves the heat exchange efficiency and the temperature control precision, reduces the maintenance difficulty, reduces the energy waste, and guarantees the smooth operation of the pipeline.

The invention discloses a linkage control method and device for a vehicle-mounted refrigerator and an air conditioner, electronic equipment and a medium, and the method comprises the steps that in response to a starting instruction for the vehicle-mounted refrigerator, the current environment temperature is detected; if the current environment temperature is higher than the preset temperature threshold value, an air conditioner is started for cooling; and when the environment temperature drops to the starting triggering temperature of the vehicle-mounted refrigerator or the starting duration of the air conditioner reaches the preset duration, the vehicle-mounted refrigerator is started, and the refrigerating power of the vehicle-mounted refrigerator is dynamically adjusted. Through linkage control over the air conditioner and the vehicle-mounted refrigerator, the vehicle-mounted refrigerator starting instruction is responded to firstly start the air conditioner for cooling in the high-temperature environment, and the vehicle-mounted refrigerator is started after the environment temperature reaches the standard or the air conditioner operates to the preset duration, so that the problem that heat dissipation of the vehicle-mounted refrigerator is affected by high temperature is effectively avoided, the refrigerating efficiency is remarkably improved, the refrigerating time is shortened, and the refrigerating efficiency is improved. The temperature stability when the compressor refrigeration vehicle-mounted refrigerator stops running is guaranteed; and meanwhile, the limitation of independent operation is broken through, energy redundancy consumption is reduced, the refrigerating power is dynamically adjusted after the vehicle-mounted refrigerator is started, and the stable refrigerating effect is ensured.

The invention relates to the technical field of intelligent dust removal, in particular to a coal conveying process dust removal analysis and adjustment method and system based on multi-source information processing. Which comprises a working module and is characterized by further comprising an information acquisition module, a processing module and a control module, the information acquisition module is connected with the working module, the processing module is connected with the information acquisition module, the control module is connected with the processing module, and the working module is connected with the control module. The dust management problem in the coal conveying system is recognized and solved, the air quality and the working environment can be improved, meanwhile, the optimal operation effect of energy conservation and consumption reduction is achieved, the production safety and efficiency can be improved, and energy waste and the operation cost need to be effectively reduced.

A linkage mechanism for the lifting and lowering of a photoelectric platform and the opening and closing of a hatch includes a cable assembly, a motor-driven concentric pulley, a photoelectric platform, a hatch guide rail, and a hatch. The motor-driven concentric pulley comprises a small-diameter pulley, a large-diameter pulley, and a rotary motor. One end of the hatch is connected to the small-diameter pulley via the cable assembly, and the other end is connected to the hatch guide rail. The photoelectric platform is connected to the large-diameter pulley via the cable assembly. The rotary motor is connected to both the small-diameter and large-diameter pulleys, and the diameter ratio of the small-diameter and large-diameter pulleys is the same as the ratio of the lifting stroke of the photoelectric platform to the movement stroke of the hatch guide rail. A single power source is used to achieve both hatch opening and photoelectric platform lifting, effectively saving costs, reducing weight, and decreasing energy demand.

The efficient multi-stage cut stem dust separator comprises a separation mechanism, the separation mechanism comprises a separation barrel, and a feeding pipe, a concentrator, a backflushing separator and an airflow buffering cone are sequentially arranged in an inner cavity of the separation barrel from top to bottom; the concentrator comprises a concentration frame and a plurality of annular inverted-cone blades arranged on the concentration frame, the annular inverted-cone blades are sequentially arranged at intervals from top to bottom, the radial sizes of the annular inverted-cone blades are gradually reduced, and the top end of a concentration channel formed by center hole channels of the annular inverted-cone blades is communicated with the bottom end of the feeding pipe; the back-flushing separator comprises a back-flushing material pipe and a buffer cover, and the buffer cover is arranged around the back-flushing material pipe by a circle; the airflow buffer cone comprises a suspender frame and a buffer cone; a discharging pipe is arranged at the position, close to the top, of one side of the separation barrel, the inner end of the discharging pipe extends into an inner cavity of the separation barrel, and a gap is reserved between the inner end of the discharging pipe and the feeding pipe. The device has the advantages that concentration and multi-stage collision are carried out in the inner cavity of the separation barrel, and sufficient separation of materials and dust is realized through multiple times of energy reduction and speed reduction.

The utility model relates to a cold and heat storage pipeline management device for an energy station, and belongs to the technical field of energy station management, and the cold and heat storage pipeline management device comprises a water pressure monitoring module which is used for monitoring pipeline pressure and observing and determining a water leakage point; the pipeline control module is arranged on the pipeline and used for controlling and switching the pipeline through which the fluid flows; the leakage blocking module is parallel to the pipeline and can move to the position of a water leakage point and block the water leakage position; and the control module is respectively connected with the water pressure monitoring module, the pipeline control module and the leakage blocking module, and controls the pipeline control module to switch the pipeline and the leakage blocking module to block the water leakage point by receiving a monitoring signal of the water pressure monitoring module. The pipeline damage and leakage problems can be quickly found and processed, faults can be eliminated in time, energy loss is reduced, and the pipeline management efficiency in the energy station is improved.

Disclosed herein are devices, methods, and systems for energy optimization of vehicles based on observing passengers and the interior of the vehicle. A processor is configured to determine an energy reduction scheme for a subsystem of the vehicle. The energy reduction scheme is based on a passenger status of a passenger who is within a passenger environment of the vehicle. The energy reduction scheme is configured to reduce the power consumption of the subsystem with respect to the vehicle. The processor is also configured to control a configuration setting of the subsystem of the vehicle based on the energy reduction scheme.

A method and apparatus introduces the concept of quality / energy tradeoff control of visual content. It provides a user with fine and continuous control of the intensity of certain algorithms that the device applies to visual content. This control enables the user to balance between the quality of experience and the energy consumed to use, consume, transmit and / or display the visual content. If users are reported for higher gains in terms of energy savings, they do accept content with lower quality.

The application discloses a brushless condensing fan and a control method, and relates to the technical field of condensing fans, which comprises a shell and a control module, the inner wall of the shell is fixedly connected with a support, the inner wall of the support is fixedly connected with a brushless fan, the brushless fan can output airflow to the rear side of the shell, the outer wall of the shell is fixedly connected with a fixed plate, the inner wall of the fixed plate is fixedly connected with an infrared temperature monitoring module, the infrared temperature monitoring module is used for monitoring the temperature of the heat dissipation fins of a condenser, the infrared temperature monitoring module is electrically connected with the control module, and the outer side of the shell is further provided with a control mechanism. The infrared temperature monitoring module and the control module are arranged, the speed of the brushless fan can be adjusted in real time according to the surface temperature of the heat dissipation fins of the condenser, dynamic heat dissipation control is realized, the speed is increased to enhance the heat dissipation efficiency when the temperature of the fins is high, the energy waste is reduced, and the system operation reliability is improved.

This invention discloses a multi-source collaborative optimization control method for smart microgrids, relating to the field of energy technology. The method includes: connecting to the user side to predict the power supply demand of the target microgrid in a preset time zone; acquiring a hybrid energy supply module containing multiple distributed power sources; collecting historical power supply logs of the distributed power sources and generating relevant time sequences; performing energy curtailment rate analysis based on this to generate indicators and decisions; optimizing energy storage units after determining that the indicators meet the standards; and then performing multi-source collaborative power supply control according to preset demand. This method solves the technical problems of existing new energy power generation uncertainties that are difficult to accurately predict, and unreasonable energy storage module configurations that lead to significant energy losses during power generation, storage, and distribution, resulting in low energy utilization efficiency and unstable power supply quality. By optimizing and integrating new energy power generation, energy storage modules, and energy distribution in the microgrid, it achieves the technical effect of reducing energy losses and ensuring efficient and high-quality power supply to the microgrid.

The video receiver transmits to the video transmitter first information indicating a request for video content suitable for energy reduction presentation, the request including information indicating at least one of a requested energy reduction rate and an accepted video quality reduction, receives the video content from the video transmitter, second information related to the video content is received from the video transmitter, the second information indicating an expected energy reduction rate of the corresponding selected metric and a metric of reduced video quality, and the video content is provided for display.

The utility model relates to the technical field of heat supply pipe detection, and discloses a heat supply pipeline leakage monitoring device. The objective of the utility model is to solve the technical problems of high manual inspection cost, untimely water leakage point discovery, insufficient detection data accuracy and lack of remote monitoring capability in the prior art. The device comprises a temperature sensor and a liquid level sensor, the detection signal output end is connected with the microcontroller through the signal processing circuit so as to collect temperature and liquid level data of the sensing module, and the microcontroller is connected with the application module through the wireless transmission module; the application module comprises a data processing part and a display interaction part, the data processing part comprises a computer provided with data processing software, and the display interaction part comprises a display screen arranged in the examination room and mobile electronic equipment provided with a client. The system can monitor whether the pipeline leaks or not, reduces energy loss, reduces inspection cost, and is efficient in early warning, high in detection speed and high in precision.

The utility model discloses a dynamic heat dissipation device coping with local temperature mutation of a cabinet server, the horizontal extension direction of a back plate of a cabinet is defined as an X direction, the horizontal extension direction of a side wall of the cabinet is defined as a Y direction, the height direction of the cabinet is defined as a Z direction, and the dynamic heat dissipation device comprises a Z-direction guide column, an X-direction guide rod, a fan and a plurality of temperature sensors; the bottom of the Z-direction guide column is rotationally sleeved with a bottom supporting foot, and the Z-direction guide column supports the X-direction guide rod in a lifting mode. A fan is horizontally supported on the X-direction guide rod along the X direction; and the temperature sensors are arranged at heat dissipation ports of a plurality of servers in the cabinet. According to the heat dissipation device, the heat dissipation module is designed to be of a flexibly movable structure, adjustment can be conducted according to the real-time change of server load distribution, and heat dissipation resources are optimally configured. According to the dynamic heat dissipation system, the heat dissipation efficiency can be remarkably improved, hot spot accumulation is avoided, energy waste can be reduced, and the green and energy-saving purposes are achieved.

The application belongs to the technical field of energy optimization, and discloses a distributed energy optimization decision system based on cloud computing; comprising: a data receiving module, which is used for receiving historical power generation data collected by a resource end and historical load data collected by a user end by a cloud platform; a region division module, which is used for dividing a distributed power grid into regions according to the historical power generation data and the historical load data by the cloud platform; a data prediction module, which is used for predicting future power generation data and future load data according to the historical power generation data and the historical load data by the cloud platform; and an energy optimization module, which is used for formulating an energy dispatching optimization strategy by using an optimized fish optimization algorithm according to the future power generation data and the future load data by the cloud platform; the application fully gives play to the advantages of cloud computing, realizes intelligent management and automatic operation of the distributed power grid, reduces energy consumption and cost in the energy dispatching process, and improves the stable operation and sustainable development capacity of the distributed power grid.

The invention relates to the technical field of metallurgical automation, in particular to a dynamic optimization method and system for control parameters of an automatic heating system of a coke oven, and the method comprises the steps: collecting the historical operation data of the coke oven in real time; predicting the temperature of the coke oven in the future n hours by combining each group of gas flow control parameters; evaluating the gas flow control parameter combination according to a prediction result; and optimal parameter selection and dynamic adjustment. The method has the advantages that through combination of the neural network model and multi-target evaluation, accurate optimization of the gas flow control parameters is achieved, under different working conditions, the optimized control parameters enable the temperature mean square error MSE to be remarkably reduced, the stability coefficient UC to be generally improved, and the stability of the average temperature of the furnace is improved; optimized temperature control ensures stable operation of the coke oven in a set temperature range, so that the uniformity of coke quality and the yield are improved, and energy waste is reduced.

This utility model discloses an ultrasonic paint coating quick-drying device, including a drying device, a conveying device at the lower end of the drying device, and a wooden board at the upper end of the conveying device. The drying device includes two fixed frames, a box at the upper end of the fixed frames, a blower at the upper end of the box, a heating box connected to the output end of the blower, an air supply pipe connected to the heating box, and a fixed connection between the output end of the air supply pipe and the top of the box. Several fans are installed at two opposite ends inside the box, and a circulating exhaust fan is installed on one side of the top of the box. When the fan is turned on, it forms a gas convection circulation, accelerating the movement of hot air. The circulating exhaust fan reintroduces the circulated hot air into the heating box to reduce energy consumption. A serpentine heating tube is installed at the bottom of the box. Product advantages: It adopts an upper and lower double serpentine heating structure, with a laminar flow hot air curtain in the top box and a contact serpentine heat conduction module in the bottom conveyor belt, forming a three-dimensional heat field coverage to ensure uniform heating of the board.

The invention discloses an automatic turn-over multi-layer circuit board cleaning machine, and relates to the technical field of circuit board cleaning, the automatic turn-over multi-layer circuit board cleaning machine comprises an ultrasonic cleaning box, a multi-layer processing mechanism is arranged at the top end and in the ultrasonic cleaning box, and the multi-layer processing mechanism is used for clamping a circuit board during cleaning and controlling the circuit board to enter and exit from the interior of the ultrasonic cleaning box; the multi-layer processing mechanism can scrape the surface of a water body in the ultrasonic cleaning box during turning over and spray liquid on the surface of the circuit board after the circuit board is turned over, the circuit board can be turned over by moving the cleaning box upwards, therefore, turning over can be conducted without manual work or an additional power source, energy loss is reduced, the whole manual operation process is simplified, and the working efficiency is improved. When the circuit board is turned over, the spraying plate can be driven to move in a reciprocating mode, impurities floating on the surface of a water body can be removed when the circuit board is turned over, then cross contamination generated in the cleaning process is reduced, it is guaranteed that the two faces of the circuit board can be cleaned, and the cleaning effect of the circuit board is improved.

The application discloses a self-gas-keeping ship drag reduction device, which is composed of multiple groups of drag reduction units, and each drag reduction unit comprises a main air film box and a plurality of auxiliary air film boxes. The bottom of the main air film box is provided with a main air film cavity, and the auxiliary air film boxes are evenly arranged in the main air film cavity. Each group of auxiliary air film boxes is connected with the inner wall of the top of the main air film cavity through a flexible piece. The bottom of each group of auxiliary air film boxes is provided with an auxiliary air film cavity. The main air film cavity and each group of auxiliary air film cavities are connected with a gas supply system such as an air compressor on the ship through an air inlet pipe to obtain gas for filling. Air film gaps are formed between adjacent auxiliary air film boxes and between the auxiliary air film boxes and the main air film box. The main air film box is provided with a sealing film for plugging the air film gaps. The application keeps air existing in the contact part between the ship body and water, reduces the energy consumption by reducing the running resistance of the ship, and realizes the air-keeping effect by arranging multiple groups of auxiliary air film boxes in the main air film cavity of each group of main air film boxes.