66results about How to "Protect device security" patented technology

The invention discloses a three-phase four-wire system zero-line failure and open-phase intelligent protector. The outputs of a current transformer and a voltage transformer are connected to the input of a range switching module; the range switching module, a data processing module, a CPU logic controller and a drive circuit are connected with each other in sequence; one output switch trip signalof the drive circuit is connected with a switch with an opening coil, and the other output alarm signal is connected with a background management center; and the CPU logic controller is connected with a remote management center or terminal through a communication module. The invention can be used for directly judging whether the zero line goes wrong and transmitting a protection control signal after the failure occurs, so that the switch trips to cut off the failure rear-end power circuit, thereby achieving the goal of protecting equipment and personal safety. Meanwhile, an alarm signal is transmitted to the background management machine to carry out the corresponding treatment, thereby realizing the function of alarm report; and the failure information can quickly make decisions for treating the power-off accident, thereby shortening the power-off time.

This invention relates to a combined control device for integrated instruments and electric appliances composed of a shell with a faulty display window and labels, an electronic control circuit, an intelligent expanding module circuit, a moving and static contactor component with a current sensor at the side of a static contact bridge, an iron core, a coil and a spring, which realizes multiple kinds of protections and fault display by the electronic control circuit and has the function of power saving, a photo electric isolation technology is applied for its high voltage drive and low voltage signal circuit and the I / O expanding interface and an intelligent expansion module are applied to enrich the function of the display and control of the instrument.

The invention discloses a defrosting method of an air source heat pump water heater. The defrosting method is characterized by comprising the following steps: the heat transfer temperature difference and the heat transfer temperature difference change speed are calculated through measuring the environment temperature and the temperature and time of an evaporator coil; the environment temperature, the opening time, the heat transfer temperature difference and the heat transfer temperature difference change speed are compared with defrosting condition set values; when four defrosting conditions are all satisfied, the defrosting signal is sent to realize defrosting through normally closed and normally open contacts of a defrosting relay, start and stop of a fan and a compressor of a control system and opening and closing of a four-way valve or a defrosting bypass electromagnetic valve or a defrosting hot water electromagnetic valve; the defrosting time and the temperature of the coil are compared with defrosting end signal set values; the defrosting end signal is sent; the defrosting end procedure is actuated; and the system recovers normal operation. The defrosting method comprises four-way valve reverse heat pump circulation, or bypass hot air defrosting, or hot water defrosting, or compound defrosting. The defrosting method is accurate in defrosting judgment, clear in logic, cheap in probe, easy for measuring signals and fast and thorough in defrosting, saves the energy, and is suitable for defrosting of all air source heat pump water heaters for sucking air energy to produce hot water.

The present invention discloses a polymeric ferric sulfate water treatment agent and a preparation method thereof. The method comprises the following steps: (1) preparing an acidic aqueous solution of ferrous sulfate: controlling a mass ratio of ferrous sulfate heptahydrate to sulfuric acid to 1:(0.44-0.45), and preparing an aqueous solution, wherein the mass of the ferrous sulfate is 10-20% of the total mass of the solution; and (2) introducing ozone-containing gas to the aqueous solution, carrying out a reaction for at least 0.5 h, and carrying out hydrolysis and polymerization of ferric ions to obtain the polymeric ferric sulfate water treatment agent. According to the present invention, ozone is adopted as an oxidizing agent, an additional catalyst is not required to be poured, heating on the solution is not required during the whole reaction, the reaction can be performed under atmospheric pressure, the reaction is fast, production efficiency is high, high value-added products are obtained while the ozone is utilized and removed by the production process, impurities harmful for human body or equipment or byproducts can not be produced, and an environment protection characteristic is provided.

The invention discloses an electrician training device which comprises an operation platform and an air switch, a voltage meter, a current meter, a power factor meter, a voltage regulator, a current voltage regulator, an isolation transformer, a current raising device, a voltage booster, a voltage mutual inductor, a current mutual inductor, an alternating current contactor, a time relay, a timer, a voltage gear switch, a current gear switch, an electrician metering switching switch, a phase switching switch, a current protection unit, a plurality of control buttons and a connection terminal which are arranged on the operation platform. A meter hanging frame is arranged above an operation platform body. The electrician training device can provide a voltage source, a current source, voltage phase shift and the like, tests and operation can be conducted by electricians after wiring is completed, and the real feeling as that of actual field work is achieved.

The invention relates to a spray apparatus used on a building site, which solves the deficiencies of prior art technology. The technical method involves: the apparatus includes a fog gun water inlet pipeline, a fog gun, a fog gun control unit, a fog gun angular motor, a fog gun angular frequency converter, a fog gun water inlet pipeline pressure transducer, a fog gun water inlet pipeline flow sensor, a booster pump, a booster pump frequency transducer, a booster pump outlet pressure sensor, a water inlet pipeline solenoid valve and a manual control button. The fog gun control unit is in electrical connection with the fog gun angular motor via the fog gun angular frequency transducer, and the fog gun water inlet pipeline is communicated with the fog gun via the booster pump, and the fog gun water inlet pipeline pressure sensor, the water inlet pipeline solenoid valve and the fog gun water inlet pipeline flow sensor are all configured on the fog gun water inlet pipeline. The fog gun water inlet pressure sensor, the water inlet pipeline solenoid and the fog gun water inlet pipeline flow sensor and the fog gun control unit are connected. The manual control button is also connected to the fog gun control unit. The fog gun control unit is in electrical connection with the booster pump via the booster pump frequency transducer.

The invention provides a gas leakage detection apparatus which comprises a factory compressed gas input port, an air pressure adjusting unit, a gas on-off control unit, a measuring range enlargement selection unit, a gas flow sensor and conditioning circuit, and a clamp unit. The factory compressed gas input port receives compressed gas used for detection, transmits the gas to the air pressure adjusting unit, and after obtaining flowing gas of suitable air pressure, transmits the gas to the gas on-off control unit. The gas on-off control unit is turned on, stable gas is transmitted to the measuring range enlargement selection unit, and the flowing gas is outputted to the clamp unit through the gas flow sensor and conditioning circuit. According to the invention, the measuring range enlargement selection unit is added, through a gas flow measurement apparatus, outputted gas reaches the clamp unit equipped with a device to be measured, a disadvantage that in previous airtight measurement an object to be detected should has certain internal volume is overcome.

The invention relates to the technical field of testing equipment and particularly discloses an elevator sliding guide shoe liner testing machine. The elevator sliding guide shoe liner testing machine comprises a work assembling system, a driving system and a control system, wherein the work assembly system is composed of a worktable surface, at least one clamp arranged on the worktable surface for clamping a shoe liner to be tested, at least one loading device for providing sample testing pressure, and at least one wear measurement device for measuring wearing on line and in real-time; the driving system comprises a driving motor, a transmission shaft for power output of the driving motor, and a turntable connected to the transmission shaft, and at least one detachable abrasion piece which can simulate the shape of a guide rail is fixed onto the turntable; the control system is connected with the loading device, the wear measuring device and the driving motor. The elevator sliding guide shoe liner testing machine can achieve comparative test on multiple samples under different testing conditions as well as testing comparison of products to be tested made of different materials or under different loading capacities.

The invention, which belongs to the technical field of server safety, relates to an environmental parameter-based server cluster automatic protection system comprising a lower computer and an upper computer. The lower computer consists of a data acquisition and control system, a temperature sensor, a grid voltage sensor and a relay group; the temperature sensor and the grid voltage sensor and a relay group are connected to the data acquisition and control system; the data acquisition and control system is connected with the relay group; and the relay group uses an uninterrupted power supply (UPS) for power supplying. Besides, the upper computer includes a server cluster operation environment monitoring and control system; the lower computer includes an IBM server; and the upper computer and the lower computer are connected by an RS-232 bus and are connected with the server cluster by the ethernet network. With the protection system, an objective of safety protection of server data and equipment can be achieved; and the workload of the technical management personnel can be substantially reduced.

The invention relates to a method and device for clearing a DC line fault of a hybrid multi-terminal DC transmission system. For a DC system composed of a rectifier station and N-1 inverter stations (N is greater than or equal to 3), there are N-2 busbar areas on a DC line for connecting the rectifier station on the head end and the inverter station on the tail end, each busbar area is connected with an intermediate inverter station, when the DC line between two adjacent busbar areas or the DC line between the busbar area on the tail end and the inverter station on the tail end is faulty, theDC system is controlled to be restarted; and if the DC system is restarted unsuccessfully, the inverter station at the downstream of the faulty DC line is locked, and the intermediate inverter stationand the rectifier station on the head end on the upstream of the faulty DC line are restarted. By adoption of the method and device provided by the invention, the power loss during the line fault andthe disturbance to an AC system are reduced, and the fault clearing of the line fault of the hybrid multi-terminal DC transmission system is realized through a specific line fault clearing method, sothat the reliability of the hybrid multi-terminal DC transmission system is improved.

The invention discloses a small vacuum three-target magnetron sputtering coating machine, and relates to a coating machine. The coating machine comprises a vacuum chamber, a machine table, an electrical apparatus control system, an upper cover and three magnetron targets, wherein the machine table supports the vacuum chamber, the electrical apparatus control system and the upper cover of the vacuum chamber are arranged in the machine table, and the three magnetron targets are evenly distributed on the upper cover; the upper cover is connected with two air pressure supporting rods, a suction pipe is arranged behind the vacuum chamber, a throttle valve is arranged in the suction pipe, the rear end of the suction pipe is connected with a molecular pump through a pneumatic gate valve, and an exhaust opening of the molecular pump is connected with a mechanical pump through a corrugated pipe; the three magnetron targets are evenly distributed on the upper cover of the vacuum chamber, and anindependent baffle mechanism is arranged on each target head; a glass observation window is arranged in front of the vacuum chamber; and an introducing interface for auxiliary illuminating is formed in the right face of the vacuum chamber. The small vacuum three-target magnetron sputtering coating machine is of an integrated structure and can work by being externally connected with water, electricity and gas, and users only need to set a plurality of parameters such as the coating time and put samples and take samples so that the coating machine can operated fully automatically.

The invention discloses a comprehensive management integrated system for a machine room environment, and relates to the technical field of machine room environment comprehensive management. The system comprises a main controller and a data collection part. The data collection part comprises a smoke sensing fire detector, a temperature sensing fire detector, a temperature sensor, a humidity sensor, and an infrared detector. The main controller is connected with an evacuation emergency device, a gas extinguisher, a fireproof shutter device, an access control device, a precise air conditioning device and a smoke exhaust device through a signal analysis processing and signal transmission control module. The smoke sensing fire detector and the temperature sensing fire detector are used for collecting the smoke concentration information and temperature information of a machine room. When fire happens in the machine room, the main controller drives the gas extinguisher to carry out the fire extinguishing through heptafluoropropane gas, and starts the fireproof shutter device to prevent the further spreading of fire. A sound and light early warning device carries out the voice early warning and flashing early warning so as to remind the people of evacuating, thereby protecting the equipment safety of the machine room and the life and property security of the workers.

The invention relates to a digital twin substation anti-misoperation system, which comprises an equipment monitoring unit, a personnel monitoring unit, an Internet of Things base station and a management background, and is characterized in that the monitoring unit is used for collecting power equipment data, environment data, real scene data and image data of a plurality of monitoring points in real time; the personnel monitoring unit collects movement paths, identity recognition and vital sign related data of personnel in the transformer substation in real time; the Internet of Things base station is used for receiving, transmitting and transmitting real-time data streams; and the management background is used for docking and processing the acquired data flow and judging whether the electrical equipment of the transformer substation runs abnormally, and the management background can establish a 3D model, divide a working area and a non-working area and generate operation ticket information. According to the invention, integrated monitoring and unified management are formed, personnel are trained and simulated, personnel working routes are planned, the operation and maintenance cost is low, layered display and mistake prevention can be realized, the five-prevention capability of a transformer substation is promoted, electrical equipment and personal safety are protected, and stable and safe operation of a power grid is ensured.

The invention relates to a high-efficiency direct drive type pumping unit with a single movable pulley and a single fixed pulley. The high-efficiency direct drive type pumping unit comprises a tower which is fixed on a cement foundation. A platform welding rack is fixed at the top of the tower. The upper platform of the platform welding rack is provided with a motor, a driving wheel, a guiding seat and a guiding arm. According to the high-efficiency direct drive type pumping unit, a direct motor driving manner is used. Furthermore a sucker rod and a counterweight end are respectively provided with a fixed pulley assembly and a movable pulley assembly. A requirement for a motor torque is greatly reduced, thereby reducing cost, facilitating maintenance and improving the integral operation efficiency of the pumping unit. Furthermore the high-efficiency direct drive type pumping unit is provided with a winch first steel band, and therefore automatic elevation of a counterweight can be realized and dodging and resetting of a front guiding arm can be easily performed, thereby realizing more convenient well maintenance. Furthermore a drawer type structure is adopted for dodging and resetting of the guiding arm, thereby realizing higher safety.

The invention discloses a delay control circuit of a DC motor. The delay control circuit of the DC motor comprises a driving power module, a battery charging-discharging module, a motor driving module and a control module MCU; the driving power module is used for converting AC into a DC power supply which is regulated down and stabilized to be 12V; the battery charging-discharging module capable of charging and discharging a battery comprises a charging circuit, and a delay discharging circuit controlled through the MCU, and the battery charging-discharging module discharges to supply power to the motor driving module; the motor riving module is used for controlling a three-phase motor to work; the three-phase motor is controlled through six signals of the MCU, wherein the six control circuits are supplied by an internal circuit of the MCU. The delay control circuit of the DC motor has the function of charging and discharging the battery, so that the motor delaying work can be done without an external power supply, and the motor delaying work can be achieved even after the external power supply is switched off; therefore, devices can be effectively cooled to ensure the safety; the delay control circuit is simple, the energy consumption is low, so that the cost is effectively decreased, and a user can use conveniently.

The invention discloses an electricity leakage protection method. The method includes S1, a user sets specific triggering conditions and checks whether an electricity leakage switch is switched on or not, executing S2 if the electricity leakage switch is switched on and ending the whole electricity leakage protection process is the electricity leakage switch is switched off; S2, a control terminal DCU performs polling on an electricity leakage detection module and compares an electricity leakage information value with an electricity leakage protection threshold value set in S1; S3, when the electricity leakage protection threshold value is triggered, a loop protection process is started according to the specific triggering conditions and electricity leakage log is recorded; S4, the user performs troubleshooting on a loop having electricity leakage through checking the electricity leakage log. According to the invention, polling is performed on the electricity leakage detection model by the control terminal DCU and processing of loop electricity leakage information is carried out, and power source protection actions are executed; the user checks the electricity leakage log, so that troubleshooting for electricity leakage becomes more accurate and convenient; loss caused by electricity leakage troubleshooting is reduced; and equipment and human safety are protected.

The invention designs a switching station safety environment monitoring integrated system based on a two-layer network. The system comprises a front end data collecting system and a background control system. The front end data collecting system comprises a monitoring host, a personnel safety monitoring system, a device safety monitoring system, a civil air defense monitoring system and a camera system. The background control system comprises a server, a workstation and a device control system. The server comprises a WEB server. The monitoring host is connected with the server through a light transmission channel. The workstation can access the server through the Internet. The monitoring host is connected with the personnel safety monitoring system, the device safety monitoring system, the civil air defense monitoring system, the camera system and the device control system. The barriers among traditional detection systems are solved, comprehensive switching station control platforms are created, data of the comprehensive switching station control platforms are all integrated to a unified big data platform through the Internet to be integrally monitored and controlled, and the complete monitoring integrated system is formed.

The invention discloses a comprehensive fault control method for a polymorphic power quality management device, which includes the following steps: a controller detects the DC bus voltage of a power unit, the terminal voltage of the energy storage battery group of the power unit, the output current of the power quality management device and the fault marker information of the power unit controllerto determine whether the polymorphic power quality management device fails or not; and layered and graded processing is carried out according to different types of faults. Thus, stable and reliable operation of the power quality comprehensive management device is realized.

The invention discloses an anti-explosive valve which is formed by unit valve bodies (1) combined together. The surface of each unit valve body (1) is provided with an air outlet (2); a bottom plate (3) is arranged in the unit valve body (1); a slide block (4) is arranged on the bottom plate (3); and the slide block is elastically connected with the bottom plate (3). With the structure, the invention can prevent explosive shock waves from entering the inside of a building from the air outlet while meeting the requirement of ventilation, thereby protecting indoor people and equipment.

The invention discloses a cantilever crane of an industrial robot disassembly and assembly and operation and maintenance work station. The cantilever crane comprises a bottom plate, a first fixing unit, a rotating unit, a transverse moving unit, a suspension device and an alarm device. A stand column is arranged at the top end of the bottom plate, the rotating unit is arranged on the side face of the stand column, the rotating unit is connected with the first fixing unit, and the stand column is connected with a cantilever through the first fixing unit; the transverse moving unit is mounted on the cantilever; and the suspension device comprises a mounting plate, an electric hoist and a lifting rope, the mounting plate is fixed to the bottom end of the transverse moving unit, the electric hoist is connected with the mounting plate, and the lifting rope is arranged on the electric hoist. According to the cantilever crane of the industrial robot disassembly and assembly and operation and maintenance work station, in the use process, an alarm can be given out, whether the cantilever reaches the bearing strength or not is intelligently judged, economic losses are avoided, and the body safety of a user is protected.

The invention discloses a VOC dynamic gas distribution instrument, which comprises a case, wherein a seven-inch display screen is arranged on the upper portion of the front panel of the case, a humidifier is arranged on the upper portion of the rear panel of the case, a mass flow meter and a pressure sensor are arranged on a middle plate in the case through a fixing bracket, hole limiting boxes are mounted on the mass flow meter and the pressure sensor, the hole limiting boxes are connected with a 1 / 8 penetrating plate, a switching power supply 5, a circuit board and a fan are arranged on one side of a vertical partition plate on the lower portion in the case, a GO valve and a mixing bin are arranged on the other side of the vertical partition plate C, the GO valve is connected to the mass flow meter through a 1 / 8 three-way joint, and the mass flow meter is connected to the interior of the humidifier through the 1 / 8 penetrating plate. The VOC dynamic gas distribution instrument is reasonable in structural design, convenient to maintain and operate, capable of being provided with substances such as PAMS standard gas, internal standard gas, oxygen-containing standard gas and the like, capable of meeting the requirement for measuring the volatile organic compounds in the atmosphere, attractive and elegant in overall appearance, convenient and reliable to use, capable of saving manpower, high in safety and high in practicability.

The invention discloses a conveying line. The conveying line comprises a foldable hanging basket, a conveying structure, a fixed base, a receiving frame, a transmission structure and a step-out sensor; the foldable hanging basket comprises multiple middle ribs; avoiding grooves are formed between the adjacent middle ribs; the receiving frame comprises an inclined surface and a screening structure;the screening structure is provided with multiple via grooves; the transmission structure comprises a fixed structure and a transmission gear; the transmission gear is provided with multiple mountingholes; multiple mark pieces are mounted in the mounting holes; the step-out sensor is fixed on the fixed structure; the fixed structure is aligned to the mark pieces; the via grooves and the avoidinggrooves correspond in position; conveyed objects are placed in the foldable hanging basket; the foldable hanging basket is mounted on the conveying structure, and is conveyed along the conveying structure; the conveying structure is fixed on the fixed base; and the step-out sensor senses movement of the mark pieces to detect the motion perimeter change of the transmission gear. When the abnormality occurs, the step-out sensor timely feeds back signals to protect the equipment and the personal safety, so that the safety is high.

The invention discloses a remote online testing device and method for insulation data of mining electrical equipment. The remote online testing device for insulation data of mining electrical equipment comprises a high-voltage direct-current power supply module, a signal acquisition module, a high-voltage measurement module and a control processing system, and the high-voltage direct-current powersupply module is electrically connected with tested equipment, the signal acquisition module and the high-voltage measurement module and supplies power to the tested equipment and the signal acquisition module. The device can carry out remote (local) insulation detection on equipment and lines at any time, exclude insulation detection blind area, and find out and forecast insulation data change reduction in advance. Electric leakage caused by poor insulation performance is reduced to the maximum extent, the effect of protecting line equipment and personal safety is effectively achieved, manual operation is replaced with mechanization, the detection accuracy is improved, the service life of the equipment is prolonged, and the influence of faults on productivity is reduced.

The invention discloses an anti-virus router, a system and a method thereof, wherein the anti-virus router comprises a physical layer processing module and a data link layer module, between which a neural network module is connected for performing virus identification on a data frame from the physical layer processing module, and sending the virus identification result to the data link layer module. On the premise of guaranteeing the volume and power consumption of the original router, the invention performs real-time monitoring on the network information passing through the router and recognizes the virus information therein so as to protect the security of the user information, and has the advantages of low power consumption, high efficiency and good instantaneity.

The invention belongs to the field of fluid machines and particularly relates to a large-flow portable hydraulic diagonal flow pump. The diagonal flow pump comprises an axial plunger motor, a water pump guide vane body, a water pump impeller, an impeller room and water inlet horn opening, and a motor oil supply and oil return pipe. The axial plunger motor is arranged in the water pump guide vane body. The water pump guide vane body serves as a shell of the axial plunger motor. The axial plunger motor comprises an output shaft and a motor oil inlet and outlet pipe end cover. The motor oil inlet and outlet pipe end cover is connected with the motor oil supply and oil return pipe. The other end of the motor oil supply and oil return pipe extends out of the water pump guide vane body to be connected with an external power unit. The water pump impeller is arranged at the end portion of the output shaft, and the water pump impeller is arranged in the impeller room and water inlet horn opening. The guide vane body and the axial plunger pump are integrally designed, the size of a center area of the guide vane body is reduced, an important role is achieved in optimizing a runner, and therefore the overall size is reduced, the overall weight is reduced, and portability is improved while flow is ensured.

The invention provides a safe treatment device for a multi-component organic waste gas. The safe treatment device comprises a multi-component organic waste gas collection device, an adsorption and regeneration device, a water cooled heat exchanger and a gas-oil-water separation device in sequence, and is connected, behind the gas-oil-water separation device, with three pipelines, wherein the threepipelines are a non-condensable organic waste gas pipeline, a water way and an oil way respectively; an outlet of the non-condensable organic waste gas pipeline is provided with an oxygen concentration detector and control valves for double branches; one of the double branches is a catalytic oxidation branch; the other of the double branches is a resorption branch. The safe treatment device is used for guaranteeing that an explosive dangerous accident cannot occur in a catalytic oxidation reaction kettle and condensed oil with utilization value is recovered.

The invention provides a rotary mechanism of a spittoon for a dental unit. The mechanism is provided with a spittoon motor and a supporting base which are fixedly arranged on a top plate of a box body, wherein a pinion is arranged on an output shaft of the spittoon motor, the upper end of a transmission shaft and the lower end of a rotary shaft of the spittoon are connected and then jointly supported in the supporting base by virtue of a bearing, the upper part of the rotary shaft of the spittoon extends out of the supporting base and two limiting switches with an included angle of 90 degrees are arranged on the outer circumference of the upper part of the supporting base, a cam which is contacted with the limiting switches when the rotary shaft of the spittoon rotates is arranged on the part, which is exposed out of the supporting base, of the rotary shaft of the spittoon, a rack wheel engaged with the pinion is adsorbed at the lower end of the transmission shaft by virtue of a magnet, and the upper end of the rotary shaft of the spittoon is fixedly connected with the spittoon. According to the mechanism provided by the invention, by means of dynamic drive and magnetic absorption effect between the rack wheel and the transmission shaft, the transmission motor rotates to realize self-rotation of the spittoon or transmission is disabled by means of a slip phenomenon between the rack wheel and the transmission shaft, so that manual rotation is realized and the equipment safety is protected.

The invention discloses a laboratory isolation power supply insulation fault positioning system. The system comprises an isolation transformer and an experiment table. The isolation transformer is successively connected in series with an insulation monitor and an external connection alarm. The external connection alarm is also connected to an alarm display instrument. The experiment table is connected to an experiment control chamber. An experiment control bench is connected to the insulation monitor. The isolation transformer is also successively connected in series with an insulation fault tester and an insulation fault positioning instrument through a current transformer. The experiment table comprises several load circuits connected in parallel with the insulation fault tester. The load circuits are provided with switches and positioning mutual inductors. The positioning mutual inductors of the load circuits are connected to the insulation fault positioning instrument. In the invention, when a fault is discovered, an alarm is emitted rapidly and positioning is performed so that a safe experiment platform is provided for an experimenter; personal safety and equipment safety areprotected; and the system has a certain improvement effect on teaching.

The invention discloses a steel structure antirust process. The antirust process includes the following steps of firstly, surface treatment, wherein rust, oxide skin and infirmly-attached old paint film attachments on a metal surface are removed through a wire brush, a scraper knife, abrasive paper and grinding wheel mesh; secondly, preparation of paint, wherein before the paint is prepared, uniform stirring should be performed, use cannot be performed until crust or other debris is removed, and the prepared paint needs to be sufficiently and uniformly stirred and applied on trial; thirdly, the coating method of the paint, wherein the mechanical spraying and brushing combined method is applied for the implementation of the coating method, mechanical spraying is adopted for large components, and brushing is adopted for small components; and fourthly, coating of the paint. The implementation process is simple, a steel structure is resistant to rust and fire, the strength of the steel structure is ensured, personal and equipment safety is protected, the service life of the steel structure is prolonged, and economic investment is reduced.