39results about How to "Realize start-stop control" patented technology

The invention discloses a system for collecting, purifying and utilizing rainwater by using solar energy and belongs to the technical field of solar energy utilization. The system consists of a rainwater purification unit, a rainwater storage unit, a solar power generation unit, an electric energy storage unit and a monitoring control unit, wherein the rainwater purification unit is used for collecting and purifying rainwater; the rainwater storage unit is used for storing purified rainwater; the solar power generation unit is used for converting solar energy into electric energy; the electric energy storage unit is used for storing electric energy converted from the solar energy; the monitoring control unit is used for receiving a soil humidity signal from the rainwater purification unit, a water level monitoring signal from the rainwater storage unit and a capacity monitoring signal from the electric energy storage unit and performs start and stop control on a sprinkling irrigation water pump of the rainwater storage unit. The system is reasonable in structural layout, environment-friendly and capable of fully utilizing solar energy and saving energy.

The invention provides a cutting machine for a heat-insulation plate, and belongs to the field of cutting equipment for heat-insulation plates. According to the cutting machine for the heat-insulationplate, a cutting device is designed, and comprises a slide part and a cutting part, and the cutting part is arranged on the slide part, and capable of realizing slide cutting and up-down telescopic adjustment; and a fixing device is designed, and used for fixing the heat-insulation plate when the heat-insulation plate moves to a proper position, and comprises a fixing block, an electric telescopic cylinder, a hinge head, a connection plate, a rotary shaft and a fixing plate, and the rotation of the fixing plate is realized by virtue of the telescoping of the electric telescopic cylinder, forclamping the heat-insulation plate, so that the slide of the heat-insulation plate is avoided, and high reliability and practicability are achieved. According to the cutting machine for the heat-insulation plate, the heat-insulation plate is driven to move by virtue of the rotation of a transmission motor, the heat-insulation plate is fixed to a conveying belt through the fixing device, then the cutting device cuts, after the cutting is completed, a cutting wheel moves upwards, and a fixing mechanism rotates, so that the cut heat-insulation plate is moved to the other end. The conversion between a longitudinal cutting manner and a transversal cutting manner can be realized by changing an installation manner for the cutting device.

The invention discloses an automatic blood plasma separation meter which is provided with a plasma separating clip for clamping a blood bag, a blood bag hose clip and a hose clip control device, wherein the plasma separating clip is controlled by an extruding motor; the extruding motor is connected with an extruding motor control module; the extruding motor control module is controlled by output data of a single chip microcomputer; the single chip microcomputer is connected with a display module; the output data of a blood flowing-out detection module is connected with the single chip microcomputer; a weight detecting module and an operation key module are connected with the single chip microcomputer; a position detecting module is connected with the single chip microcomputer; and a power supply module is used for supplying power to each module. Compared with the prior art, the automatic blood plasma separation meter has the advantages of simple structure, convenience for operation and low cost, and can be used for realizing automatic blood separation, reducing artificial errors and mistakes, saving manpower resource and reducing the labor intensity.

The invention relates to a liquid remote quantitative loading system. The system comprises an upper support, a remote alignment system, an automatic loading crane pipe, a control box and a metering system, wherein the automatic loading crane pipe, the control box and the metering system are installed on the upper support. A feeler lever touches a tank opening of an oil storage tank, the control box controls a vertical pipe to extend into the tank opening of the oil storage tank and stop moving after an inlet distance is reached, the control box controls an oil pump to start for oil loading, aprotective shell floats along with the liquid level, and when the inner bottom wall of the protective shell triggers a float switch, the control box controls the oil pump to stop. According to the system, the vertical pipe can be quickly aligned with the tank opening of a tank truck, and a float liquid level meter is designed for automatic control over start and stop of the oil pump and liquid level measurement of the tank truck, so that a flow meter or manual control can be replaced, control over start and stop of the oil pump can be achieved, and quantitative control is more accurate. The system can realize on-site unmanned liquid filling and accurate metering, can improve the oil loading operation efficiency, and achieves the purposes of safety, energy conservation and yield increase.

The invention relates to the technical field of medical instrument cleaning equipment, and provides medical instrument cleaning and drying equipment for surgical operation. The equipment aims to solve the problems that a common medical instrument cleaning machine for surgical operation is low in cleaning efficiency, cannot quickly clean medical instruments, is high in energy consumption and poor in cleaning effect, and meanwhile does not have a drying function. The medical instrument cleaning and drying equipment for surgical operation comprises a lower machine box and an upper machine box which are vertically and integrally communicated, a conveying mechanism used for conveying the medical instruments is arranged in an inner cavity of the lower machine box, and an instrument inlet and an instrument outlet are formed in the two sides, corresponding to the input end and the output end of the conveying mechanism, of the upper machine box correspondingly. Immersion cleaning cavities, spraying cavities and drying cavities are sequentially formed in the inner cavity of the lower machine box and the inner cavity of the upper machine box in the moving direction of the conveying mechanism, the spraying cavities and the drying cavities are separated through vertically-arranged partition plates, and mixed immersion cleaning mechanisms and spraying cleaning mechanisms are arranged in the immersion cleaning cavities and the spraying cavities correspondingly. The medical instrument cleaning and drying equipment for surgical operation is particularly suitable for cleaning surgical medical instruments, and has high social use value and application prospects.

The invention discloses a solar water heater control system which comprises a heat storage water tank, a heat collector and a controller. A first temperature sensor, a water level sensor and an auxiliary electric heating device are arranged in the heat storage water tank. A water filling valve is arranged on a water inlet pipeline. A water supply pump, a one-way valve and a water flow switch are arranged on a water supply pipeline. A second temperature sensor and a backwater valve are arranged on a backwater pipeline. A third temperature sensor is arranged on a hot water outlet pipeline of the heat collector, and a circulating water pump is arranged on a hot water inlet pipeline. The controller receives signals collected by the temperature sensors, the water level sensor and the water flow switch so as to achieve the starting and stopping control over the water filling valve, the water supply pump, the one-way valve, the backwater valve and the circulating water pump and the on-off control over the auxiliary electric heating device, thereby achieving the functions of automatic water filling, automatic heating, auxiliary electric heating, instant heating and the like of a solar water heater. The solar water heater control system can be convenient to use, accurate in controlling and high in automatic degree.

The invention discloses a water cooling unit electric cabinet heat radiation fan control method, and belongs to the refrigeration equipment technical field; the control method comprises the followingsteps: obtaining an outdoor temperature; comparing the outdoor temperature with a preset outer temperature threshold; responding to a first comparison result that the outdoor temperature is greater than or equal to the outer temperature threshold, and controlling the heat radiation fan to run; responding to a second comparison result that the outdoor temperature is smaller than the outer temperature threshold, and controlling the heat radiation fan to run according to a detection result that the water cooling unit is in an operation state. The control method uses extraneous environmental parameters and unit self operation characteristics to select control parameters, thus realizing start-stop control of the heat radiation fan without adding extra control parts; the control method and device are high in reliability and good in control performance.

The invention discloses a CAN bus engine monitor and a control method thereof, and relates to the technical field of engine monitoring equipment. The CAN bus engine monitor comprises a key operation module, a display module, an output module, a CAN communication module, a storage module and an MCU control module. The MCU control module is in charge of controlling the output module to transmit a control signal to an engine, counting the working time and the maintenance time of the engine and transmitting the counted information to the storage module. The control method comprises a start protection control method, a stop protection control method and a rotating speed setting method. By means of the start protection control method and the stop protection control method, it can be avoided thata motor is damaged in the illegal start and stop processes, and the motor is protected.

The invention relates to a temperature-controlled movable high-pressure live-keeping experiment cabin for fresh aquatic products, and belongs to the technical field of scientific research instrumentsfor aquatic products. The experiment cabin comprises a base, a cabin body, a cabin door and a water tank, wherein the cabin door is a rotary closed door; a water tank support guide rail and a glass water tank are arranged in the cabin body, and the glass water tank can be pushed to the inside of the cabin body along the water tank support guide rail to be fixed; an air supply and exhaust system, acabin temperature control system, a cabin lighting system, a control system and a power supply and distribution system are arranged in the cabin body, and live-keeping experiments of the live aquaticproducts can be conducted in experimental environments with different proportions of gas components, different environmental pressures and different temperature parameter combinations. The life state, respiratory rhythm and physiological changes of the fresh aquatic products in environments such as normal temperature, low temperature, high concentration of oxygen, high concentration of helium, normal pressure and high pressure can be monitored, studied and analyzed. Survival time of the aquatic products is prolonged and the utilization rate of oxygen is high. The experiment cabin has the advantages of high equipment control precision, good visibility, high equipment informatization and automation level and stable operation.

The invention relates to a crane tube loading metering system. The crane tube loading metering system comprises a vertical tube, an oil pump, a flow meter and a controller, and further comprises a measuring rod vertically arranged on the periphery of the vertical tube, a feeler lever arranged on the measuring rod in a sleeving mode, an electronic bin arranged at the top of the measuring rod and afloater, wherein a small magnet close to the measuring rod is arranged in the feeler lever, and the feeler lever can freely move up and down along the measuring rod; and the floater comprises a floating switch arranged at the bottom end of the measuring rod and a protective shell arranged on the periphery of the floating switch and the periphery of the bottom of the measuring rod in a covering mode, and the protective shell can float on the oil surface and cannot fall off from the bottom of the measuring rod. According to the crane tube loading metering system, errors caused by different tanktruck heights can be eliminated, the flow meter or manual control can be replaced, start-stop control over the oil pump is achieved, and control is more accurate.

The invention relates to a control method, in particular to an intelligent control method for a plunge milling cutter. The intelligent control method aims to solve the problems that in the machining process of an existing plunge milling tool, a vibration-damping and cooling control method is complex in operation and poor in universality, pollution is caused to the environment, the temperature measurement is not accurate, the cooling process is single, and the temperature and the vibration are not considered together. The intelligent control method comprises the following steps that the plungemilling cutter is arranged; and an acceleration sensor, a first displacement sensor, a second displacement sensor, a third displacement sensor, a fourth displacement sensor and a fifth displacement sensor transmit detected acceleration signals and displacement signals to a vibration signal controller, the vibration signal controller sends an instruction to a current controller according to the acceleration signals and the displacement signals, and the current controller adjusts currents in a first electromagnet, a second electromagnet, a third electromagnet, a fourth electromagnet and a fifthelectromagnet. The intelligent control method belongs to the field of machining.

The invention belongs to the technical field of medical apparatus and instruments, and especially relates to a grabbing device used for a blood cell analyzer. The grabbing device comprises a guide rail, an installation pedestal, and a fixing pedestal; the installation pedestal is arranged on the guide rail; the fixing pedestal is arranged on the installation pedestal; the fixing pedestal comprises a bottom plate, a side plate, and a top plate; the base plate and the top plate are arranged on the two ends of the side plate respectively; the top plate is provided with a bushing; the bushing is penetrated through by a grabbing guide rod; one end of the grabbing guide rod is connected with a lead rod; a bearing is arranged in the lead rod; an eccentric pin is arranged in the bearing; the eccentric pin is arranged at the eccentric part of a circular disc; the center of the circular disc is provided with a rotating shaft; and one end of the rotating shaft is connected with a motor. The grabbing device is simple in structure; operation is stable and reliable; assembling complexity is reduced; it is convenient for assembling and maintenance; moving and positioning accuracy is high; operation is smooth; the grabbing device is durable; service life is long; processing is convenient; and cost is low.

The invention belongs to the technical field of refrigeration, and provides a control method of a magnetic suspension evaporative cooling direct expansion unit. The problems that an existing direct expansion unit mostly adopts an oil system, the heat exchange effect is poor, maintenance is inconvenient, noise is high, energy consumption is high, and energy saving is not facilitated are solved. The magnetic suspension evaporative cooling direct expansion unit comprises a magnetic suspension compressor, an evaporative condenser, a liquid storage device, a gas-liquid separator and a plurality of indoor air coolers; the evaporative condenser comprises a condensation fan and a water tank temperature sensor; the water tank temperature sensor is used for detecting the water temperature in a water tank; and the control method comprises the steps that the water temperature in the water tank and/or the pressure ratio of the magnetic suspension evaporative cooling direct expansion unit are/is obtained; and according to the water temperature in the water tank and/or the pressure ratio of the magnetic suspension evaporative cooling direct expansion unit, starting and stopping of the condensation fan are controlled. According to the magnetic suspension evaporative cooling direct expansion unit and the control method thereof, the heat exchange effect of the unit can be guaranteed, maintenance is convenient, noise is low, dynamic adjustment of the condensation fan can be achieved, energy-saving control is achieved, and energy consumption of the direct expansion unit can be reduced.

The invention discloses an ultrasonic welding quality control method and application of the ultrasonic welding quality control method in an automatic production line, and the method comprises the steps that sound signals in the composite material melting process are obtained, and the melting state of a foaming material and non-woven fabric is judged according to the sound signals; when the amplitude-frequency curve characteristic of the sound signal is that the sound loudness is lower than the fusion welding state, and the frequency is concentrated on the vibration frequency of an ultrasonic generator, the foam material and the non-woven fabric are not subjected to fusion welding; and when the amplitude-frequency curve characteristic of the sound signal is that the sound loudness is improved compared with the sound loudness in a non-fusion welding state and a plurality of regular peak values appear when the frequency is lower than the ultrasonic vibration frequency, the foam material and the non-woven fabric are subjected to fusion welding. The ultrasonic welding quality control method can also be integrated in an automatic production line and is used for controlling start and stop of the automatic production line and monitoring the stability of welding quality. The method has the advantages of being simple in implementation method, high in recognition rate, low in equipment cost, low in maintenance cost and the like.

The invention discloses a pull type aircraft cooling air vehicle, which comprises a trailer chassis, a structural box body and an aircraft cooling air system, wherein the aircraft cooling air system comprises an air supercharging and conveying system, a drying and dehumidifying system, an air temperature adjusting system, an air flow distribution and thermal insulation system and an electric control system which are sequentially connected; the air supercharging and conveying system comprises an air compressor and a stead pressure tank; the air temperature adjusting system comprises a refrigeration heat exchanger, a refrigerating unit and an electric heater; the air flow distribution and thermal insulation system comprises a gas supply pipeline and an emptying pipeline which are connected with an outlet of the electric heater through a flow distribution valve; the gas supply pipeline and the emptying pipeline are provided with a gas supply electric valve and an emptying electric valve respectively; and the electric control system is arranged in an electric control cabinet. The pull type aircraft cooling air vehicle has the advantages of compact structure, rational design, high working reliability, high adaptability, high air flow adjustment accuracy, convenience in use and operation, low energy consumption, good air supply quality and convenience in promotion and use.