5799 results about "Electromagnetic valve" patented technology

The invention relates to an ice crystal evaporator and an ice crystal water cooling device producing from the same, belonging to the technical field of refrigeration. The ice crystal evaporator is characterized in that a liquid inlet channel is formed by an evaporator tube, a liquid inlet and a liquid outlet in a tubular casing; and the outer channel of the evaporator tube of the tubular casing is divided into more than one S-shaped channel forming a water return channel through a water inlet of a water divider and a water outlet of a water collector. The ice crystal water cooling device is characterized in that the return air inlet of the ice crystal evaporator is communicated with a compressor, a condenser, a liquid feeding valve, a dry filter, a liquid feeding electromagnetic valve anda thermostatic expansion valve in sequence, and then is communicated with the liquid inlet of the ice crystal evaporator; a cooling water inlet / outlet of the condenser is connected with a cooling tower in series; and a water inlet / outlet of the ice crystal evaporator is communicated with a water circulating pump and an ice crystal energy storage tank in series. The invention has the advantages ofhigh cooling efficiency, no icing and low cooling temperature and is suitable for production of energy storage central air-conditioning, marine fishing, seafood processing, fruit, vegetable or meat processing, and the like; the cooled medium is municipal water.

The invention relates to a system and method for rapidly establishing steady state vacuum chamber pressure. According to the system, the set value of the vacuum valve is fixed, and the driving current of the MFC electromagnetic valve is used for adjusting the pressure of the cavity, so that the pressure is stabilized more quickly. The system can operate in a training mode and an inference mode. In the training mode, a PID controller is used for determining set values of an MFC and a vacuum valve; in an inference mode during substrate processing, these settings are quickly invoked and executed, thereby achieving efficient and stable pressure control.

The invention discloses a digital twin intelligent test run system based on a marine medium-speed diesel engine and a monitoring method, relates to the technical field of monitoring, and is used for solving the problems of degeneration identification lag and low emission early warning precision of an oil injector. The system comprises a multi-source heterogeneous data preprocessing module and a running state intelligent diagnosis module. The multi-dimensional data acquisition module is used for acquiring in-cylinder pressure, crankshaft torsional vibration and transient air-fuel ratio signals to construct multi-dimensional data vectors, and the multi-dimensional data acquisition module is used for analyzing combustion fluctuation characteristics based on an attention mechanism LSTM (Long Short Term Memory) network, identifying early deterioration of an oil injector and outputting an oil injection consistency coefficient and a fault type identifier. The method comprises the steps that according to an oil injection consistency coefficient, electromagnetic valve response delay and combustion parameter correlation are tracked, a degradation trend is predicted, and emission early warning is generated; and according to prediction and early warning results, fuel injection compensation parameters are dynamically adjusted in the digital twinborn model, a recursive least square method is adopted to identify combustion parameters and feed the combustion parameters back to an electric control unit, and self-adaptive optimization and closed-loop control in the test run stage are achieved.

The invention discloses a temperature compensation method and system, and the method comprises the steps: receiving a valve block temperature signal collected by a temperature sensor integrated with a pressure sensor in a closed gas supply unit, and an electronic element temperature and environment temperature signal collected by a temperature sensor on a control unit PCB, generating an initial temperature-working condition data set by combining the power of the air pump and the working duration of the electromagnetic valve; performing thermal resistance network modeling on the initial temperature-working condition data set, constructing a multi-node thermal characteristic matrix, and decomposing the matrix into a plurality of sub-matrixes; performing real-time operation on the sub-matrix by using a dynamic heat balance algorithm to generate a temperature estimation result of the key component; and generating a temperature compensation control instruction according to the temperature estimation result of the key component. According to the embodiment of the invention, the temperature of the key component can be accurately estimated, dynamic compensation is realized, and the control precision and stability of the closed gas supply unit are improved.

The invention discloses an on-load tap-changer oil dissolved gas monitoring device which comprises a variable capacity container, a two-way electromagnetic valve, a switching mechanism, a chromatographic column system, a high-sensitivity detector and a low-sensitivity detector which are sequentially connected, and the top and the bottom of the variable capacity container are connected through a circulating pump to form a gas flow loop. The variable-capacity container is connected with the on-load tap-changer through a connecting pipe, the switching mechanism is connected with at least two quantitative pipes with different capacities, and the switching mechanism is used for equally transferring gas in the variable-capacity container to the quantitative pipes and then sequentially transferring the gas in the quantitative pipes to the chromatographic column system. The invention further discloses a method for monitoring the dissolved gas in the on-load tap-changer oil. According to the monitoring device and the monitoring method for the dissolved gas in the oil of the on-load tap-changer, the detection range of the concentration is improved, a concentration blind area which is not detected and misjudgment of signal saturation can be avoided, and the detection accuracy is improved.

The invention provides an intelligent fault diagnosis method and system for electromagnetic valve test data and a computer program product, and relates to the technical field of electromagnetic valve fault diagnos.The intelligent fault diagnosis method comprises the steps that firstly, multi-dimensional test data of an electromagnetic valve under multiple working condition combinations are collected, and multiple types of data including action response and the like are contained; a data behavior collaboration model is constructed based on the behavior collaboration relation between the data, and laws such as synchronous response are embodied; an abnormal collaboration chain deviating from a normal collaboration mode is mined from the model, and abnormal performance of each link is determined; reversely deducing a fault core cause through the abnormal collaborative chain, and determining information such as cause types; and finally, generating an executable instruction sequence based on the fault core inducement and the abnormal collaborative chain conduction characteristic, and controlling the maintenance system to execute fault handling operation. Therefore, faults can be comprehensively and accurately diagnosed, and the operation reliability and the system stability of the electromagnetic valve are improved.

The invention relates to an intelligent oil containment boom mechanical arm device and a control method thereof. The intelligent oil containment boom mechanical arm device comprises a mechanical arm, a hydraulic driving system, a sensing system and a control unit. The mechanical arm comprises a transmission base, a steering stand column, a large arm, a small arm, an overturning head and a tail end grabbing hook assembly. The hydraulic driving system comprises a hydraulic pump station, a proportional reversing electromagnetic valve group and a plurality of execution oil cylinders; the sensing system comprises a gyroscope array and a camera array to form a distributed attitude sensing network and a distributed visual sensing network; the control unit identifies and positions an oil containment boom target based on a sea surface image acquired by the distributed visual perception network, performs motion planning on the mechanical arm, and controls the mechanical arm to move and grab the target; in the target positioning process, posture changes of all parts of the mechanical arm are sensed in real time based on the distributed posture sensing network, and dynamic compensation is conducted on the posture error of the mechanical arm. According to the device, the oil containment boom can be quickly, accurately, reliably and intelligently grabbed, and the laying efficiency and safety of the oil containment boom are improved.

The invention relates to the technical field of vacuum measurement, in particular to a device for expanding the linear range of mass spectrometry measurement, which comprises a gas transmission pipeline, an electromagnetic valve, a small hole and a mass spectrometer, and is characterized in that the front end of the gas transmission pipeline is used for allowing a sample to be measured to enter, and the rear end of the gas transmission pipeline is connected with the mass spectrometer; the middle part of the gas transmission pipeline is divided into three channels, namely a first gas transmission pipeline, a second gas transmission pipeline and a third gas transmission pipeline; the first electromagnetic valve and the first small hole are sequentially arranged on the first gas transmission pipeline, the second electromagnetic valve and the second small hole are sequentially arranged on the second gas transmission pipeline, and the third electromagnetic valve and the third small hole are sequentially arranged on the third gas transmission pipeline. According to the method, manual dilution or segmented sample injection is not needed, a wide concentration range can be covered by single analysis, more than 60% of time cost is saved, and measurement in a dynamic range of 106 is realized.

The invention provides a system device for intelligently sorting coal gangue. The system device comprises a feeding unit, a machine vision recognition unit, a main control unit and a sorting execution unit which are connected in sequence, the feeding unit comprises a vibrating feeder and a refining and shaping mechanism; the machine vision identification unit comprises a high-speed industrial camera and a near infrared spectrum camera; a coal gangue recognition model based on deep learning is arranged in the main control unit; the sorting execution unit comprises a plurality of high-pressure electromagnetic air valve nozzles which are evenly distributed in the transverse direction of the conveying belt. The vibration feeding mechanism and the material uniformizing and shaping mechanism are combined, so that single-layer uniform distribution of materials is ensured, and overlapping and shielding of the materials are effectively avoided; machine vision and near infrared spectrum multi-modal information fusion is adopted, and a deep learning algorithm is combined, so that the accuracy and adaptability of coal gangue recognition are remarkably improved; and through the time delay compensation and accurate positioning technology, it is ensured that the sorting execution mechanism accurately hits the target, and the sorting efficiency is improved.

The invention discloses a heat dissipation control method, device and system based on an array chip and a medium. The method comprises the steps that the basic valve opening degree is determined based on the temperature value of any partition and a valve opening degree mapping table; determining a target valve opening degree of each electric valve based on the basic valve opening degree and a spray coverage overlapping model, and sending the target valve opening degree to each electric valve; calculating a target total flow based on all target valve opening degrees, adjusting the rotating speed of a liquid supply pump through a frequency converter, and enabling a measured value of a flow sensor to be the target total flow; determining a target pressure value based on the saturation temperature of the cooling liquid, and adjusting the power of the vacuum pump or the three-way vacuum electromagnetic valve to enable the pressure value of the evaporation cavity to be the target pressure value. According to the method, three-layer linkage logic of partition precise temperature control, system flow coordination and global pressure setting is established, scattered devices are integrated into a whole, overall adjustment of the system level is achieved during heat dissipation control, instructions do not need to be sent frequently to control each valve, and the electric energy consumption of the system is reduced.

The invention relates to a debridement nursing device in operating room nursing, belongs to the technical field of surgical operating instruments, and aims to solve the problems that a hose of a traditional flushing device is easy to block, needs to be manually disassembled for cleaning or increasing water pressure, is easy to damage tissues and interrupts an operation flow. Pressurizing assemblies are fixedly connected in the two air pressure adjusting cavity assemblies, ejector rod assemblies are connected in the two air pressure adjusting cavity assemblies, automatic detection and dredging of hose blockage are achieved through linkage of the air pressure adjusting cavity assemblies, the pressurizing assemblies and the ejector rod assemblies, when a hose liquid outlet is blocked, an electromagnetic valve switches an air source, and the hose liquid outlet is blocked. The extrusion action is matched with the high-speed flushing fluid to generate shearing force, attachments in the tube are stripped, and the situation that an operation is interrupted due to manual intervention is avoided.

The utility model belongs to the field of mold preheating, and provides a full-automatic mold preheating machine which comprises a flame nozzle, an oil tank, an oil conveying pipe, an air compressor, a main air pipe, a negative pressure generator, a negative pressure pipe, a first electromagnetic valve, an oil suction pipe and a control panel. The oil conveying pipe communicates with the oil tank and the flame nozzle; one end of the main air pipe is communicated with the air compressor, and the other end of the main air pipe forms a first branch air pipe and a second branch air pipe which are connected in parallel; an air inlet and an air outlet which are coaxially arranged are formed in the negative pressure generator, a bypass opening communicated with an air channel between the air inlet and the air outlet is further formed, the air inlet is further communicated with the second branch air pipe, and the air outlet is communicated with the external atmosphere; the negative-pressure pipe communicates with the top of the oil tank and the bypass opening. The first electromagnetic valve is mounted on the second branch air pipe; the other end of the oil suction pipe is a free end; the control panel is in communication connection with the air compressor and the first electromagnetic valve.

The invention belongs to a lumbar vertebra brace, and particularly relates to an intelligent self-adaptive lumbar vertebra rehabilitation brace combining targeted physiotherapy and biological feedback, which comprises a shell consisting of a front piece, side wings and a rear piece, the treatment module is arranged in the through hole area of the front piece and integrates a vibration actuating array, a flexible warming piece and a TENS electrode; the sensor module is provided with an overall detachable patch, and the sensor module integrates an interface pressure array, an IMU, an sEMG, an NTC and a PPT micro probe; the multi-cavity air bags are arranged along transition areas of the side wings and the front piece in a partitioned mode, and the micropump and the electromagnetic valve are connected with the multi-cavity air bags. One end of the self-adaptive winding adjusting module is arranged on the rear piece, the other end of the self-adaptive winding adjusting module is located in a winding cavity of the side wing and connected through a pull rope, the side wing end can be wound and stretched to adjust the tightness degree, vibration, heat and TENS parameter self-adaption are carried out on a pain point through PPT and sEMG feedback, lumbago can be reduced in a short time, and the curative effect can be quantified through PPT and myoelectricity.

The utility model discloses a building gas leakage monitoring device based on pressure signal, which comprises a shell, a display arranged on the shell, a connecting pipe positioned in the shell, an electromagnetic valve, a pressure sensor and a controller, the electromagnetic valve and the pressure sensor are arranged on the connecting pipe, the controller is connected with the pressure sensor, the electromagnetic valve and the display, and the display is connected with the controller. The controller is connected with a power supply, and two pipe ends of the connecting pipe form connecting ports on the shell. The gas leakage monitoring device is installed on a gas main pipeline behind the pressure regulating box, gas pressure data are collected through the pressure sensor, whether the gas pipeline leaks or not is judged through the controller, gas leakage can be effectively monitored, and gas use safety is improved; the system can provide guidance basis for building low-pressure gas pipeline maintenance operation and accident early warning, and can be widely applied to the field of safety operation of low-pressure gas pipelines.

The invention relates to the technical field of equipment compensation control, and discloses a medical suction device with an altitude compensation function and a control method thereof. The method comprises the following steps: reading ambient air pressure data of a first pressure sensor, reading molecular sieve tank differential pressure data of a second pressure sensor, collecting pressure data of an output end of a third pressure sensor, and determining a real-time altitude according to the ambient air pressure data; a breathing pressure fluctuation value is calculated based on the molecular sieve tank differential pressure data, when the breathing pressure fluctuation value is lower than a preset negative pressure threshold value, the current breathing frequency is recorded, and nitrogen removal time, pressure equalizing time and flushing time are determined to control an electromagnetic valve to work; and when the oxygen concentration is lower than a first concentration threshold value and the real-time altitude height is lower than a preset height, increasing the nitrogen removal time by a first preset proportion and increasing the target rotating speed by a second preset proportion, and when the oxygen concentration is lower than a second concentration threshold value, stopping the operation of the compressor and closing all the electromagnetic valves. According to the invention, the false alarm rate is effectively reduced, and the equipment safety is improved.

The invention belongs to the field of target drone fuel oil systems, and particularly relates to a self-adaptive supersonic speed target drone fuel oil system and a control method thereof. The system comprises a machine body oil tank, a first electromagnetic valve, an overflow valve, a pressurization oil tank, a fuel pump, an engine pump, a monitoring module and a control module. The body fuel tank comprises a main fuel tank and an auxiliary fuel tank which are arranged in a fuel tank in the middle of the target drone body and located in front of and behind the theoretical mass center of the target drone respectively. The pressurization oil tank is additionally arranged in the fuel oil cabin, fuel oil in the engine body oil tank enters the pressurization oil tank for pressure maintaining after being pressurized by the fuel oil pump, and then oil is supplied to the engine from the pressurization oil tank, so that stable oil supply to the engine is achieved by establishing a local pressure environment instead of a large pressure environment of the whole fuel oil cabin, and therefore when a fuel oil system works, the fuel oil can be stably supplied to the engine. The oil supply flow and pressure are controlled in a closed-loop mode in real time through the control system according to the engine state.

The invention discloses digital intelligence powder type distribution-free variable viscosity fracturing fluid skid-mounted equipment and a control method thereof, and belongs to the technical field of oil and gas field development. The equipment comprises a stirring mechanism, a feeding mechanism, a water feeding mechanism and a discharging mechanism which are centrally controlled through a control box. The feeding mechanism adopts a first screw conveyor to convey solid materials to the stirring tank body; the water supply mechanism supplies water to the tank through a water supply pump and a water outlet pipe with an electromagnetic valve, and the water quantity is monitored by a water inlet flow sensor; the discharging mechanism outputs the mixed liquid through a discharging pump, and the viscosity of the fracturing fluid is detected in real time through a viscosity sensor. The control box is connected with all the sensors and execution components, and automatic adjustment and closed-loop control of the material proportion are achieved by collecting flow and viscosity data. According to the invention, accurate and automatic preparation of the fracturing fluid is realized, the problems of inaccurate traditional manual proportioning and poor stability are effectively solved, and the fluid preparation quality and the operation efficiency are remarkably improved.

The invention provides a triple GIS shell metal mold casting mold, and relates to the technical field of casting molds, the triple GIS shell metal mold casting mold comprises a casting bottom mold part, and a sand core assembly is arranged above the casting bottom mold part; the sand core assembly is used for forming a triple GIS shell flange; a wedge block positioning piece is mounted on the casting bottom mold piece; casting mold body parts are arranged on the two sides of the sand core assembly and used for being installed on a casting machine. The exhaust flow dividing piece is adopted and matched with opening of the second electromagnetic valve, suction through an external vacuum pump can be facilitated, exhaust is promoted, and the liquid inlet efficiency is improved; the problem that an existing triple GIS shell casting mold is not convenient to automatically control to actively exhaust and prevent hollowing in the early stage of casting is solved.

The utility model relates to the technical field of angle control devices, in particular to a metal plate bending angle control device which comprises a base table, a frame plate, a hydraulic rod, a bending punch and a hydraulic conveying assembly, the top end of the base table is fixedly connected with the hydraulic conveying assembly, the outer side of the hydraulic conveying assembly is fixedly connected with an angle adjusting assembly, and the hydraulic conveying assembly comprises a storage box. An oil passing opening is formed in the left end of the storage box, a first electromagnetic valve is fixedly connected to the inner side of the oil passing opening formed in the storage box, a self-sucking pump is fixedly connected to the left side of the storage box, a middle fixing table is fixedly connected to the left end of the self-sucking pump, and a branch channel and a communicating channel are formed in the lower end of the middle fixing table. According to the metal plate bending angle adjusting device, angle adjustment is achieved through a hydraulic system, the mechanical abrasion phenomenon is greatly reduced, the service life of the angle adjusting device is prolonged, and meanwhile the accuracy of the metal plate bending angle is ensured.

The invention provides a heat pump non-stop defrosting control method and system based on double-evaporator cooperative control, and the method comprises the steps: building a temperature difference response change rate index by collecting the refrigerant inlet and outlet temperatures of two groups of fin heat exchangers in real time, and recognizing a side needing to be defrosted and a heating side; an electronic expansion valve, a fan and an electromagnetic valve are dynamically configured, so that the side needing to be defrosted enters a static defrosting mode, and the heating side continuously supplies heat; the frequency rising of the compressor and the switching of the four-way valve are cooperatively adjusted, and small-flow pre-balancing is executed before reversing so as to restrain pressure impact; and after defrosting is completed, it is judged that defrosting is finished based on the thermal response state and the heat change trend, the side needing defrosting is controlled to be reset, and heating is started again. Uninterrupted heat supply of the user side in the defrosting process is achieved, water temperature fluctuation and energy consumption are remarkably reduced, and the operation stability and energy efficiency of the heat pump in the low-temperature and high-humidity environment are improved.

The invention discloses a quick response capability detection device for a high-precision electromagnetic valve, and relates to the technical field of electromagnetic valve detection, the quick response capability detection device comprises a positioning frame and a transmission table, a sliding rod arranged on the positioning frame is sleeved with the transmission table in a sliding connection mode, and valve body positioning tools are fixed to the side wall of the transmission table at equal intervals through bolts; the miniature optical fiber sensing module and the high-frequency response pressure sensor are integrated, synchronous measurement of valve element displacement and outlet pressure is achieved, the limitation of single parameter measurement is overcome, meanwhile, the miniature optical fiber probe is adopted for detecting the valve element displacement through the miniature mounting hole in the valve body, the influence on valve element movement is reduced, and the measurement precision is improved. The problem that the structure of the electromagnetic valve needs to be greatly changed in a traditional direct detection method is avoided, the drift diameter of a flow channel is adjusted through rotation of a layer sleeve block in the phase change regulation and control mechanism in the initial detection stage, multi-working-condition simulation from low-pressure large flow to high-pressure small flow is achieved, and the detection condition is closer to the actual working environment of the electromagnetic valve.

The invention provides a wide-adjustment high-reliability electric propulsion system and a control method. The wide-adjustment high-reliability electric propulsion system comprises a pressure adjustment module, a flow adjustment module and a Hall thruster. The flow adjusting module is composed of an electromagnetic valve and a flow distributor. According to the Hall thruster flow distributor, through different previous series-parallel connection relations, on the premise that flow distributors are not added, the Hall thrusters can work in pairs, meanwhile, the backup number of the cathode flow distributor and the anode flow distributor is increased, and the system reliability is improved. By arranging the flow resistance step of the flow distributor, the large-range flow adjusting capacity of the cathode and anode inlets of the Hall thruster can be obtained, and therefore the large-range variable thrust working mode, the cathode large-flow ignition mode and the anode low-flow starting mode of the Hall thruster are achieved.

The invention discloses an intelligent adjusting device for strawberry garden irrigation, and relates to the technical field of agricultural irrigation, the device comprises a data sensing module, a main control module, a man-machine interaction module and an execution module; the data sensing module is used for collecting soil moisture content, planting environment data and strawberry growth stage data in real time; the main control module is used for receiving the sensing data, generating a dynamic irrigation decision according to an irrigation analysis model, and sending an irrigation decision control signal to the execution module; the man-machine interaction module is used for acquiring strawberry planting parameter information input by a user, querying soil and environment monitoring data and irrigation state information, and performing remote interaction; and the execution module is used for controlling the electromagnetic valve array to independently irrigate according to the strawberry planting ridges according to the irrigation decision control signal. Water resource waste of a traditional irrigation mode is avoided, accurate irrigation is conducted according to the soil humidity and the strawberry growth stage, the water resource utilization rate is increased, and automation of the irrigation process is achieved.

The invention discloses a mixing device for preparing thioacetamide, and relates to the technical field of thioacetamide mixing. Comprising a mixing installation part, an isolation mixing part is installed on the mixing installation part, and the isolation mixing part is used for mixing thioacetamide raw materials; a filler control piece is mounted on the mixed mounting piece; a stored material detection part is mounted on the mixed mounting part; the stored material detection piece is used for detecting melting of solid raw materials; a discharge control part is mounted at the bottom of the mixed mounting part; the discharge control part is used for discharging a thioacetamide raw material mixed solution; by adopting the premixing discharging part, when the discharging electromagnetic valve needs to be opened for discharging work, the mixing motor is kept to be started and is in a driving mixing state; the mixing device is used for solving the problem that the existing mixing device for manufacturing thioacetamide is easy to generate precipitates when discharging thioacetamide raw material mixed liquid intermittently for multiple times.

The invention relates to the technical field of intelligent control, and discloses a power-assisted control method of a lower limb pneumatic flexible exoskeleton and a lower limb pneumatic flexible exoskeleton system.The method comprises the steps that healthy side plantar pressure data are obtained, healthy side key gait event nodes are recognized, and the power-assisted control method of the lower limb pneumatic flexible exoskeleton is obtained according to the healthy side key gait event nodes and ankle joint angle data; estimating an uninjured side continuous gait phase, and calculating an affected side target gait phase according to the uninjured side continuous gait phase; according to the target gait phase of the affected side, auxiliary torque and tension are determined; according to the auxiliary torque and the pulling force, target air pressure for supporting the airbag and shrinking the airbag is determined, an electromagnetic valve is controlled to execute deflation or inflation operation according to the target air pressure, and the internal pressure of the airbag is controlled within a target range. The invention aims to provide flexible assistance conforming to the biomechanical characteristics of the ankle joint of a human body for people with ankle joint dysfunction, improve the walking ability and improve the safety and comfort of rehabilitation training.

The invention relates to the technical field of error analysis, in particular to a trace gas multi-filling repeatability error analysis and compensation method which comprises the following steps: collecting gas pressure pulsation data and container inner wall adsorption layer thickness change data in a filling stage; inputting the pressure pulsation data into a dynamic coupling analysis module to calculate correlation degree parameters of an adsorption hysteresis effect and a pressure fluctuation frequency spectrum; an adsorption-pressure dynamic coupling correction model is established through a phase-space reconstruction algorithm, and composite correction parameters including the valve response lead and the temperature compensation slope are generated; and the composite correction parameters are input into a filling execution mechanism, and reconstruction of an electromagnetic valve control time sequence and dynamic correction of a temperature control curve are completed before the next filling cycle is started. According to the method, the deep coupling characteristics causing the filling error can be identified, and the sensitivity and pertinence of error analysis are improved.

The utility model relates to the technical field of stamping, in particular to an aluminum alloy decorating part stamping device which comprises a machine body, a rotating disc, a stamping mechanism, a discharging mechanism, a fixed die and a material leaking groove. A butt joint block is welded to the rear end of the fixed die, and an air groove penetrating through the butt joint block and the fixed die is formed in the inner side of the butt joint block; an opening of one side, facing the waste cavity, of the air groove is smaller than that of the other side; a pressurization box fixed to the machine body through a fixing frame is arranged on the rotating disc, a cavity of the pressurization box is communicated with the outside through an external pipe, an electromagnetic valve is arranged in front of a pressurization cavity of the pressurization box, and a contact sensor used in cooperation with the pressurization box is further arranged outside the pressurization box. The pressurizing box is arranged on the rotating disc, meanwhile, an existing mold is upgraded, the butt joint block matched with the pressurizing box is additionally arranged, the gas groove with the width gradually reduced is formed in the butt joint block, gas in the pressurizing box enters the waste cavity through the gas groove, secondary cleaning is conducted on residual waste in the waste cavity, and therefore complete waste discharging is achieved.

The invention provides an energy storage system and a fire control method thereof. The energy storage system includes a battery compartment, a battery cluster including a battery pack, a pack-level assembly, a compartment-level assembly, and a cluster-level assembly. The pack-level assembly is arranged in the battery pack and comprises a composite detector and a nozzle. The composite detector is used for monitoring at least one of parameter information of electrolyte gas in the battery pack, sound information of opening of the battery safety valve and temperature information. The cabin-level assembly comprises a fire suppressor and a control host. And the cluster-level assembly comprises a pipeline for communicating the spray head in each battery pack with the fire suppressor, and an electromagnetic valve and a puncture valve which are arranged on the pipeline. And the electromagnetic valves are used for conducting or cutting off inhibitors flowing from the fire suppressor to the corresponding battery clusters on the pipeline. And the puncturing valves are used for conducting or cutting off inhibitors conveyed to the corresponding battery packs after passing through the electromagnetic valves. And the control host is connected with the composite detector, the electromagnetic valve, the puncture valve and the fire suppressor, and is used for executing graded early warning according to the monitoring signal.

The invention discloses a beneficiation reagent quantitative adding device, and relates to the field of beneficiation reagent quantitative adding, the beneficiation reagent quantitative adding device comprises a mounting frame, the mounting frame is slidably connected with a sliding frame, the top of the sliding frame is fixedly connected with a liquid storage cylinder, the top of the liquid storage cylinder is provided with a feeding pipe, the sliding frame is provided with a water pump, and a water inlet of the water pump is fixedly connected with the bottom wall of the liquid storage cylinder; a water outlet of the water pump is fixedly connected with a liquid discharging pipe, a liquid outlet of the liquid discharging pipe faces the container, a first electromagnetic valve is installed on the liquid discharging pipe, and a backflow pipe is connected between a backflow opening of the water pump and the liquid storage cylinder. The impeller is driven to rotate through the water pump, the stirring frame and the inclined stirring blades are driven to stir material liquid, ore dressing agent precipitation is effectively prevented, and uniform mixing is guaranteed; the sliding frame reciprocates along the mounting frame and is matched with the guide block to automatically adjust the angle of the spray head, so that switching between horizontal spreading and parabolic spreading of feed liquid is realized, the spreading range and uniformity are remarkably improved, the beneficiation effect is enhanced, and the working efficiency is improved.

The invention discloses a built-in electromagnetic valve type semi-active shock absorber and a working method, the built-in electromagnetic valve type semi-active shock absorber comprises a working cylinder, a floating piston is arranged in the working cylinder, and an inner cavity of the working cylinder is divided into an air cavity and an oil cavity by the floating piston; the damping adjusting valve is slidably arranged in the oil cavity and divides the oil cavity into a compression cavity and a recovery cavity, and the upper end of the damping adjusting valve is connected with the piston rod; the damping adjusting valve comprises a valve body, a containing cavity is formed in the valve body, and a main valve seat hole is formed in the lower end face of the valve body. The main valve seat hole is communicated with the accommodating cavity in the valve body and the compression cavity; the valve core comprises a main valve core, a main valve spring and a main valve spring seat; the main valve spring seat is fixed in a containing cavity of the valve body assembly, and a pilot cavity is formed by the main valve spring seat and the electromagnetic valve assembly; the main valve spring is arranged between the main valve spring seat and the main valve element in a sleeved mode and abuts against the main valve element on the end face of the main valve seat hole. And the main valve core and the main valve seat hole form a main valve port. According to the built-in electromagnetic valve type semi-active shock absorber and the working method, machining is easy, and meanwhile the quick response capacity is achieved.