57results about How to "Guaranteed to run for a long time" patented technology

The invention provides a long-term fluidized aerosol generating device with a self-dispersing function. The long-term fluidized aerosol generating device consists of an airflow supply part, an airflow drying part, a powder ebullition fluidizing part, a powder self-dispersing part and a powder online continuous supply part. Due to the unique design of the airflow drying section and an ebullition fluidizing plate, powder can be in a fluidized state under the action of the bubbling airflow of the fluidizing plate. In the self-dispersing section, part of lumpy powder is further dispersed under the action of high-speed airflow, so that the problems of viscous powder aggregation, clustering, vibrating caking and water absorbing deliquescence are effectively solved, the problems of particle unevenness and powder discharging discontinuity, which occur in the aerosol powder supply process, are effectively avoided, and the even and continuous supply of aerosol powder is ensured.

The invention discloses an anti-blocking type continuous water treatment device, which comprises a housing, the inner upper wall of the housing is provided with a sliding sleeve, a sliding connecting rod and a compression spring, the lower end of the sliding connecting rod is provided with an upper sliding plate, and the upper sliding plate There are motor, stirring shaft, stirring blade, centrifugal wheel and the first filter screen on the top, the outer frame, blade and inner ring are arranged on the periphery of the stirring blade, and the drainage pipe is arranged in the threaded hole, and the drainage pipe is connected by a double-threaded upper joint. , threaded cover, second filter screen and lower drainage joint, the upper end of the shell is provided with a water inlet pipe, and the right wall of the shell is provided with a filling pipe and a sewage pipe. The present invention can carry out water treatment by stirring, drain water after being filtered by the first filter screen and the second filter screen, improve the water treatment efficiency by setting the outer frame, fan blade and inner ring on the periphery of the stirring fan blade, and set it by the movable upper sliding plate In order to drive the first filter screen to lift when impurities adhere to maintain the continuity of water treatment.

The invention relates to a flexible arc extinguishing method for a power distribution network based on a single direct current source cascade H-bridge converter. The method comprises the steps of S1,recognizing a fault phase of a grounding fault, enabling a cascade H-bridge converter of the fault phase to be connected with a power distribution network, enabling a cascade H-bridge converter of a non-fault phase to be disconnected with the power distribution network, and initializing parameters of a quasi-PR controller; S2, collecting and comparing a difference value between a fault phase voltage value and a reference value, obtaining an injection current reference value of the cascade H-bridge converter through the quasi-PR controller, and calculating an optimal output level; S3, obtainingan on-off state combination according to the optimal output level, and sending the on-off state combination to the corresponding H-bridge unit; S4, after the preset time delay, cutting off the current-limiting resistor, and adjusting the parameters of the quasi-PR controller; S5, collecting direct-current side voltage of the cascade H-bridge converter in real time, and connecting a direct-currentsource with an H-bridge unit after the voltage drops to a threshold value; and S6, gradually reducing the injection current after the preset time is reached, and judging and isolating the permanent single-phase grounding fault.

The invention belongs to the technical field of irrigation and fertilization devices, and particularly relates to an automatic mobile irrigation and fertilization device for agricultural planting. Interms of the problems of simple structure, inconvenient use and poor irrigation effect of the irrigation and fertilization devices, the device includes a base, the top outer wall of the base is fixedto a water tank by a screw, the top outer wall of the water tank is fixed to an electric motor by a screw, the output shaft of the electric motor is connected with a stirring rod through a coupling, awater inlet hole is formed in the top outer wall of the side, near the electric motor, of the water tank, the inner wall of the water inlet hole is in inserting connection with a water inlet pipe, the top end of the water inlet pipe is sleeved with a water inlet hopper, and a feed hole is formed in the top outer wall of the other side, near the electric motor, of the water tank. The device has low intelligence degree, saves manpower and material resources, has good irrigation and fertilization effects, significantly improves agricultural production efficiency, saves a large amount of strength, has high automation degree, is convenient to use, and satisfies use requirements of people.

The invention discloses a tunnel construction cooling device and method. The tunnel construction cooling device includes a press-in type fan, a fog gun machine, a heat insulation water tank and a cooling device body. The cooling device body is installed in the heat insulation water tank. The output end of the heat insulation water tank communicates with the input end of the fog gun machine. The output end of the fog gun machine and the input end of the press-in type fan are arranged oppositely. The cooling method of the tunnel construction cooling device includes the following steps that 1, the heat insulation water tank is filled with sufficient water; 2, low-temperature liquid is led into the cooling device body; 3, the cooled water in the heat insulation water tank is led into the fog gun machine and is atomized and sprayed out by the fog gun machine; and 4, the press-in type fan sucks cold air from a spray-out area of the fog gun machine and sends wind to a construction section ina tunnel. According to the tunnel construction cooling device and method, the temperature of the construction position in the tunnel can be reduced, the life safety of workers is ensured so that the workers can be able to work normally, the cost is saved, manpower is saved, and the construction environment is kept good.

The invention relates to the field of casting technology, in particular to an ultrasonic vibration device for aluminum alloy casting, which includes an ultrasonic generator, a mobile control platform, a power device, and an ultrasonic vibration system. The ultrasonic vibration system includes ultrasonic transducers connected in sequence The ultrasonic generator is connected with the ultrasonic transducer, the ultrasonic transducer is connected with the mobile control platform, and the power device is used to drive the mobile control platform to move up and down. Through the device, the forming effect of the aluminum alloy in the casting process can be improved, and the quality of the finished product can be improved. Set up a mobile control platform, which can adjust the height of the device in real time, thereby changing the depth of the tool rod in the aluminum alloy solution, avoiding too close contact with the high-temperature aluminum alloy solution, and ensuring the safety of the device.

The invention provides a single-motor hybrid power system engine start-stop management system and method, and belongs to the technical field of hybrid automobile energy management strategies. The problem of how to adapt to various working conditions to achieve optimization of engine start-stop management is solved. The system comprises an acquisition module, an SOC judgment module, a threshold value determination module, a torque judgment module and an execution module. The method comprises the following steps: determining whether the current SOC is greater than an SOC threshold value I or not, and if the current SOC is smaller than the set SOC threshold value I, determining whether the current SOC is in an ascending process or a descending process; determining a current engine start-stoprequired torque threshold value; and when the current required torque meets the current engine start-stop required torque threshold value, sending an engine start-stop control instruction. Start-stopdifferentiated control over the engine is conducted by distinguishing the ascending process and the descending process of the SOC, elimination of low-efficiency working points of the engine and low-speed frequent start-stop of the engine is facilitated, the running time of the engine in the low-SOC section is prolonged, and short-time efficient utilization of energy is guaranteed.

The invention discloses an electric power line sweeping apparatus, and mainly relates to the electric power field. The electric power line sweeping apparatus includes a shell. A driving motor is arranged in the shell. A first bevel gear is arranged on the driving motor. Connection cylinders are symmetrically arranged at left and right ends of the shell. A supporting seat is arranged at one end of each connection cylinder far from the shell. Rotating shafts are arranged on the supporting seats. V-shaped wheels are arranged on the rotating shafts. Connection shafts are arranged in the connection cylinders. Connection frames are symmetrically arranged at front and rear ends of the supporting seats. Connection plates are arranged on the supporting seats. A sweeping frame is arranged at one end of each connection frame far from the supporting seats. First sweeping cylinders are arranged on the sweeping frames. A connection rod is arranged on one end of each supporting seat far from the connection cylinders. A second sweeping cylinder is arranged on one end of each connection rod far from the supporting seats. The electric power line sweeping apparatus has the beneficial effects that the electric power line sweeping apparatus can clean electric power lines instead of manpower, improve the work efficiency, reduce work burdens of maintenance persons, and eliminate the safety hidden trouble when workers carry out long time high altitude construction.

The invention discloses a robot dormancy control method. The method comprises the steps that a controller receives a dormancy instruction; the dormancy instruction is analyzed, and a main switch is controlled to be off; the controller comprises a communication part and an outer part, the main switch is used for controlling a power source of a power consumption device to be on and off. Through themethod, electric quantity consumption under the state without work is reduced, long-time running of the robot is ensured, and the invention further discloses a robot dormancy control device and systemand a readable storage medium. The above beneficial effects are achieved.

The invention relates to a circulating refueling pump for on-orbit refueling in space. The circulating refueling pump comprises a motor shell (1), a motor (2), a motor base (5), a permanent magnet coupler (6), permanent magnets (7), an outlet tube (10), a pump shell cover (11), a hoop (12), an impeller (13), a bearing (14), a pump shell (15) and an inlet tube (16). The circulating refueling pump has the advantages of being small in size, light, high in reliability and low in specific speed.

The invention discloses NB-IOT-based high-voltage cable low-power-consumption online monitoring equipment. The NB-IOT-based low-power-consumption online monitoring equipment comprises a current sensor, an AD conversion module, a main control chip, a PC terminal, an upper computer, an NB-IOT wireless communication module, a sensor group and a power management module. According to the invention, the main control chip carries out priority classification on various required data through equipment working modes, sheath current data and fault recording data are set as a first priority, and the data of the level need to be transmitted in all working modes. Data such as temperature, vibration and equipment information are set as a second priority, and the data of the level can be transmitted only in a normal working mode. In the data transmission process, through the limitation of the sizes of the data packets, the data packets with the too large data size are removed, uploading of invalid data is reduced, in different working modes, the frequency of data communication and the transmission amount of data communication can also be correspondingly changed, communication power consumption is reduced, and normal operation of equipment is also guaranteed.

The invention relates to an electric source switching system of a horizontal handling unmanned vehicle for a port container. The electric source switching system comprises a detection sensor which is arranged on the unmanned vehicle and is used for detecting a container, a control device which is connected with the detection sensor, as well as a charging head driving device and an electric source switching device which are connected with the control device, wherein the control device is used for receiving a signal of the detection sensor and controlling the charging head driving device and the electric source switching device; the charging head driving device is used for receiving a control instruction of the control device and driving a charging head to be docked with electric source interfaces on the container; the electric source switching device is used for receiving the control instruction of the control device, and an electric source input end of the unmanned vehicle is electrically connected with the electric source interfaces on the container; and an electric source on the container is led into the horizontal handling unmanned vehicle system to be supplied for running of the unmanned vehicle, so that long-time running of the unmanned vehicle can be guaranteed, the problem of frequent alternate charging is solved, and the unloading efficiency is guaranteed.

The invention discloses an intelligent supermarket shelf system which comprises a gateway, trays, a mobile phone, an upper computer and a server. The gateway is in communication connection with a plurality of trays through a Bluetooth Mesh network; the plurality of trays are placed on respective goods shelves; each tray is used for obtaining the total weight of goods on the tray and calculating the weight of single goods; the mobile phone and the upper computer are both in communication connection with the server, are both in communication connection with the trays and are used for setting goods information of the trays and uploading the goods information to the server; the gateway is in communication connection with the upper computer, is in communication connection with the server through NB-IoT, and is in communication connection with the mobile phone through Bluetooth; the mobile phone is in communication connection with the trays through NFC and is used for quickly modifying the unit price of the goods; a user modifies the unit price of goods and inquires goods information in batches through the mobile phone, the upper computer or the server. According to the system, electronic shelf labels are expanded into the gravity sensing trays, the number of goods in each tray can be obtained in a weight sensing mode, and therefore the dynamic inventory of each kind of goods is obtained.

The invention discloses a device and method for preparing carbon black by plasma countercurrent cracking of gaseous hydrocarbon. The carbon black is prepared by the device comprising a cathode, an insulator, an anode, a reactor body, a raw material inlet pipe and ancillary facilities. The plasma reaction system is provided with three gas inlets, namely a raw material gas inlet, a carrier gas inletand an auxiliary gas inlet, and all the paths of gas plays different roles in the reaction process, so that accurate control of the temperature, atmosphere and retention time required for cracking ofthe gaseous hydrocarbon raw materials can be facilitated, and the variety and quality of carbon black can be guaranteed. The torch route arrangement of a plasma generator arranged on the plasma reaction system is arranged opposite to a gaseous hydrocarbon raw material injection route, a countercurrent trend is presented, gaseous hydrocarbon can be rapidly mixed with a high-temperature torch, andcracking is carried out to prepare carbon materials such as carbon black and carbon nanotubes.

The invention discloses a warm/hot medium hydro-forming device for sheets. The device comprises a general double-acting hydraulic press rack, a heating system and a sheet hydro-forming unit, wherein the double-acting hydraulic press rack is used for installing and driving the sheet hydro-forming unit to work; the sheet forming unit provides heat for the sheet forming process through the heating system arranged in a furnace body, the sheet forming unit provides high pressure liquid for a charging chamber through a supercharger; and die assembly and forming processes in the sheet forming process are achieved through mutual matching of a female die and a male die. According to the device, corresponding cooling functions are achieved through designing of cooling water channels at appropriate positions in the sheet forming process; and simultaneously, isothermal and differential temperature hot hydro-forming processes can be achieved. The device has the advantages that problems of isothermal and differential temperature forming, sealing of equipment and long-time operation under high temperature and pressure can be solved farthest, and the forming limit of poor-plasticity sheet metal under the normal temperature can be improved.

The invention belongs to the technical field of medical instruments, and particularly relates to a medical physical cooling device for the pediatric department. The medical physical cooling device comprises a main machine, a pipeline and a cooling head, wherein the cooling head is connected to the main machine through the pipeline, and low-temperature liquid in the main machine circulates betweenthe cooling head and the main machine through the pipeline; and the cooling head is in an arc shape and is attached to the body of a patient to cool the patient. The medical physical cooling device issimple in structure, easy and convenient to operate and good in cooling effect, and the patient is not prone to being stimulated.

The invention provides an intelligent geological disaster monitor, and belongs to the technical field of geological disaster monitoring. The intelligent geological disaster monitor comprises a supporting mechanism and a monitoring mechanism. The supporting mechanism comprises a shell assembly, a first partition plate, a fulcrum assembly, a balance assembly, an adjusting assembly, a second partition plate, a PLC, a pressure sensor and a storage battery. The shell assembly comprises a monitoring box, a solar panel and a buzzer. Under the action of a support, a threaded rod, a first bracket, a monitoring box, a horizontal plate, a supporting block, the PLC, a camera, a first motor, a second motor and a pressure sensor, the purpose of energy conservation and environmental protection is achieved, energy consumption is reduced through intermittent work at ordinary times and continuous work during geological deviation, the intelligent geological disaster monitor can operate for a long time, the service life of the intelligent geological disaster monitor can be prolonged, the power supply difficulty is reduced, and energy is saved.