37results about How to "Fast discharge" patented technology

The invention relates to an automatic impurity removal device for garbage slurry and a method thereof.The automatic impurity removal device comprises a rack and a shell arranged on the rack, a rotating shaft is arranged in the shell, a feeding assembly, a pushing assembly and a slag discharging assembly are sequentially arranged on the rotating shaft, and the pushing assembly comprises a screen and pushing blades arranged on the rotating shaft; the slag discharging assembly comprises a slag outlet formed in the shell, an extrusion assembly and an adjusting assembly driven by the extrusion assembly are arranged on the slag outlet, the extrusion assembly comprises an extrusion plate arranged on the slag outlet in a sliding mode, the adjusting assembly comprises a hydraulic cylinder and an oil pipe connected between the material pushing blade and the hydraulic cylinder, and a pushing assembly is arranged on the shell. The extrusion assembly further extrudes the separated impurities, the impurities push the extrusion plate to the slag outlet and meanwhile drive the piston to push hydraulic oil to the material pushing blade, the material pushing blade is unfolded outwards, the conveying efficiency is improved, garbage slurry is separated more thoroughly, the impurities are pushed through the pushing plate, and the impurities are discharged more smoothly.

The invention discloses a multi-stack hydrogen fuel cell shutdown method and system, electronic equipment and a storage medium, and the method comprises the steps: setting a stack target current as a first expected current according to a preset shutdown instruction, and controlling a preset actuator to enter a shutdown preparation stage; setting the target current of the electric pile as a second expected current, and when the rotating speed data of the air compressor meets a preset rotating speed threshold value, closing the air compressor and a preset air valve of the air unit; controlling the boost converter to enter a discharge mode according to the preset actuator position information and the single voltage data; monitoring the single voltage data, controlling the boost converter to enter a standby mode according to the single voltage data, and closing the hydrogen unit and the air unit; when the temperature of the fuel cell meets the preset temperature threshold value, the heat management unit is closed. According to the embodiment of the invention, the shutdown efficiency and stability of the multi-stack hydrogen fuel cell can be improved, and the problems of system performance reduction and service life attenuation are relieved. The invention can be widely applied to the technical field of hydrogen fuel cells.

The utility model relates to an athletic field structure adopting an overhead structure on a roof, which belongs to the technical field of constructional engineering and comprises a building roof surface, stair passages communicated with the building roof surface are arranged on two sides of the rear end of the building roof surface, and an athletic field sports layer is arranged at the upper end of the building roof surface. A plurality of downpipe channels are arranged on the periphery of the building roof surface, and roof edge drainage ditches communicated with the downpipe channels are arranged on the periphery of the athletic field sports layer. The track and field sports layer comprises a track and field runway, a football field is arranged in the track and field runway, and a roof drainage open ditch communicated with the roof edge drainage ditch is arranged between the track and field runway and the football field. The device has the characteristics of compact structure, high structural stability and good drainage effect. The problem of rapid drainage of the track field built on the building roof is solved. The utilization rate of the roof is effectively improved, the land cost of sports field construction is reduced, meanwhile, the load is reduced, and the contradiction of standardizing the drainage slope is solved.

The invention provides a layered lithium ion battery equalization circuit. The layered lithium ion battery equalization circuit comprises a plurality of lithium batteries connected in series, a plurality of inner-layer inductance equalization circuits connected with nodes at two ends of any two adjacent lithium batteries, and a plurality of outer-layer boost equalization circuits connected with nodes at two ends of adjacent lithium battery packs, the inner-layer inductance equalization circuit comprises an energy storage inductor and two field-effect tubes, and the two lithium batteries are controlled by the field-effect tubes to charge and discharge by utilizing the energy storage inductor, so that energy balance of the batteries is realized; the outer-layer boost equalization circuit comprises a resonant inductor, two energy storage capacitors and a plurality of field-effect tubes, and a charging loop and a discharging loop are formed through control of the field-effect tubes to achieve energy balance of the battery. The layered battery equalization technology is utilized, so that the battery energy management is facilitated, the battery pack quickly completes the energy equalization, the circuit complexity and the circuit cost are reduced, the energy consumption is avoided, and the service life of the lithium ion battery is prolonged.

The invention discloses a high-voltage port capacitor discharging system, which comprises a direct-current bus capacitor, a bus port circuit, a transformer circuit, a high-voltage port circuit and a high-voltage port capacitor, and is characterized in that when the high-voltage port capacitor discharges, the high-voltage port circuit forms an inverter; the high-voltage port circuit is controlled by a driving signal to carry out alternating current and direct current voltage conversion of the high-voltage port capacitor, the bus port circuit forms a rectifier, and energy of the high-voltage port capacitor is discharged to a direct current bus on the bus port side through the transformer circuit, so that first-stage discharging of the high-voltage port capacitor is achieved, and second-stage discharging of the high-voltage port capacitor is achieved. And when the direct-current bus voltage at the bus port side reaches a first safety threshold value, controlling the bus port circuit to be short-circuited through the driving signal so as to realize second-stage discharge of the high-voltage port capacitor. According to the high-voltage port capacitor discharging system, no extra circuit needs to be added, a discharging path is provided for the high-voltage port capacitor, the low-voltage port does not need to be discharged, control is easy, and the electric shock risk is reduced.

The utility model discloses a limited space ventilation device which comprises a machine box and a ventilation head assembly, the ventilation head assembly comprises an air inlet main pipe, the bottom end of the air inlet main pipe is fixedly connected and communicated with an air inlet conical opening, the cross section area of the bottom end of the air inlet conical opening is larger than the area of the top end of the air inlet conical opening, and a plurality of L-shaped exhaust pipes are evenly arranged on the peripheral side of the air inlet main pipe. A plurality of first supporting rods are horizontally and fixedly connected between the side walls of the L-shaped exhaust pipes and the side wall of the air inlet main pipe, and a plurality of second supporting rods are uniformly, horizontally and fixedly connected to the peripheral side of the top end of the air inlet main pipe; the ventilation head assembly is used for ventilation, fresh air enters the ventilation head assembly through the air inlet conical opening, the air can enter the ventilation head assembly downwards in a diffusion mode, meanwhile, the L-shaped exhaust pipe can extract original air in the space, suction force is applied to the surrounding original air to extract the surrounding original air, and therefore the original air can enter the L-shaped exhaust pipe upwards; in this way, original high-density air in the limited space is assisted to be discharged, the discharging speed is higher, ventilation can be conducted quickly in cooperation with entering of fresh air, and the efficiency is higher.

The discharging degaussing circuit after the direct current resistance test of the distribution transformer comprises an inverter H bridge, a rechargeable storage battery and a voltage reduction feedback circuit, the inverter H bridge comprises an MOS tube Q1, an MOS tube Q2, an MOS tube Q3 and an MOS tube Q4, the source electrode of the MOS tube Q1 is connected with an alternating current output end, the source electrode of the MOS tube Q3 is connected with the other alternating current output end, the MOS tube Q1, the MOS tube Q2, the MOS tube Q3 and the MOS tube Q4 are respectively and externally connected with a direct current power supply through a control circuit, and the voltage reduction feedback circuit is connected with the voltage reduction feedback circuit. The drain electrode of the MOS tube Q1 and the drain electrode of the MOS tube Q3 are externally connected with a BOOST2 circuit, the source electrode of the MOS tube Q2 and the source electrode of the MOS tube Q4 are grounded, and the BOOST2 circuit is connected with the rechargeable storage battery through a voltage reduction feedback circuit. According to the utility model, a bidirectional energy feedback mode is adopted, direct current can be converted into alternating current for boosting to apply test voltage to the transformer, residual electricity on the transformer can be reduced and fed back to internal stored energy after test, the size is small, the weight is light, energy recovery can be realized, and the discharge speed is high.

The invention discloses a rapid pesticide residue and heavy metal detection method, and relates to the technical field of medicinal material detection.According to the technical scheme, the rapid pesticide residue and heavy metal detection method comprises a base body, a control panel is installed on the right side surface of the base body, an analyzer body is installed on the top face of the base body, and a display screen body is installed on the right side surface of the analyzer body; a conveying pipe is inserted into the analyzer body, and a mounting head is mounted on the top surface of the conveying pipe; the telescopic pipe is mounted on the front surface of the mounting head; and the inspection pipe is mounted on the surface of the right side of the conveying pipe, and has the effects that a scraping piece abuts against the inner wall of the beaker body, then residual liquid on the inner wall of the beaker body is scraped in cooperation with a water source, the overall cleaning effect is good, and by means of the design, the water source obtained after cleaning of the interiors of the conveying pipe, the mounting head, the telescopic pipe and the sampling pipe is recycled, so that the practicability is high. And the interior of the beaker body can be cleaned again.

The utility model discloses a 3D honeycomb novel structure of metal ion battery solves battery energy density and quick charge and discharge technical problem, including the positive plate and negative plate of battery are equipped with the ear and base body on, be equipped with a plurality of chambers on the base body, the chamber is regular hexagonal prism cavity structure, and one end is regular hexagon opening, the other end is regular hexagon seal; the base body of positive plate and negative plate the inner chamber wall surface of chamber is adhered to the positive and negative surface active material and constitutes the positive and negative; all the chamber symmetrical two -dimensional topology arrangement constitutes 3D honeycomb structure, the chamber of setting on the base body is single -sided or double -sided chamber structure.

The utility model discloses an optical filter pasting device, which comprises a pressing mechanism and an exhaust mechanism, and is characterized in that the pressing mechanism comprises an air cylinder, a cylinder body arranged at the telescopic end of the air cylinder, a telescopic rod moving along the cylinder body and a pressing strip arranged at the bottom of the telescopic rod; the air exhausting mechanism comprises a supporting arm movably matched with the outer wall of the barrel body, a connecting rod movably matched with the supporting arm, a roller frame arranged on the side wall of the supporting arm and a pressing roller arranged on the roller frame. Under the action of descending of the barrel, the supporting arm is used for pushing the pressing roller to roll, bubbles between the optical filter body and the lens base are squeezed out through the pressing roller, the optical filter body and the lens base can be tightly attached, the bubble discharging speed is high, the effect is good, and use is convenient.

The utility model relates to the technical field of flow dividers, and discloses an automatic feeding flow divider for cultivation, which solves the problem of non-uniform flow dividing of the existing flow divider, and comprises a flow divider body which is fixedly connected to the bottom end in a feeding tower and extends to the bottom of the feeding tower. A plurality of flow dividing and guiding sleeves are fixedly arranged on the side edge of the bottom end of the feeding tower, a discharging pipe is fixedly arranged at the bottom end of each flow dividing and guiding sleeve, the flow divider body is composed of a driving mechanism, a combined rotating shaft, a plurality of first flow dividing blades, a plurality of second flow dividing blades and a flow guiding assembly, and the driving mechanism is located at the bottom of the feeding tower and fixedly connected with the discharging pipe. The combined rotating shaft is connected with the driving mechanism in a matched mode, the first splitter blade and the second splitter blade are fixedly connected to the side edge of the combined rotating shaft, and the flow guide assembly is fixedly connected to the top end of the combined rotating shaft. By means of the flow divider, the flow dividing and guiding effects can be achieved at the same time, the flow dividing uniformity can be improved, and the using effect and practicability are effectively improved.

The invention discloses a switching power supply circuit and electrical equipment, and belongs to the field of switching power supplies. According to the switching power supply circuit, when the first switching tube is switched off, the primary winding of the transformer discharges to charge the second polar capacitor, so that when the first switching tube is switched on, the primary winding of the transformer is charged, and the current path is finally grounded from the negative electrode of the second polar capacitor to the positive electrode of the second polar capacitor. Therefore, when the switching power supply is switched on, the second polar capacitor can be rapidly discharged, and when the traditional switching power supply is switched on, the second polar capacitor is charged. Therefore, according to the scheme, additional discharging is not needed, the discharging speed is high, feedback is fast, an optocoupler is not needed, and cost is low.

The invention relates to the technical field of flexible direct-current converter valves, and discloses a flexible direct-current converter valve energy self-balancing power module overhauling device, method and equipment. By controlling the input of an energy release branch, the discharging function in two functions of an original voltage-sharing resistor is replaced by the energy release resistor, the voltage-sharing resistor only plays a voltage-sharing role, and the energy self-balancing power module overhauling device has the advantages that the discharging function in the two functions of the original voltage-sharing resistor is replaced by the energy release resistor; therefore, the purpose of reducing loss can be achieved through optimization, the discharge speed of a direct-current capacitor of the energy self-balancing power module is increased, the discharge time of the direct-current capacitor is shortened, the maintenance waiting time of the flexible direct-current converter valve is shortened, the maintenance efficiency of the converter valve is improved, reference significance is achieved for the operation and maintenance method of the flexible direct-current converter valve, and meanwhile, the method is suitable for popularization and application. A voltage-sharing resistor is connected in parallel with an equivalent resistor of the energy-taking power supply, and the loss of the energy self-balancing power module is further reduced by increasing the resistance value of the voltage-sharing resistor.

The invention discloses a switching power supply and a control method thereof. The switching power supply comprises at least one phase power conversion circuit and a control circuit. Wherein the control circuit is configured to compare the output voltage with an overvoltage threshold value in the discharging stage of each phase of power conversion circuit, and turn off the first switching device and the second switching device under the condition that the output voltage is greater than the overvoltage threshold value, so that the inductive current is discharged through a body diode of the second switching device; therefore, the discharging speed of the inductor can be increased when the load drops rapidly, energy in the inductor can be released rapidly, violent fluctuation of output voltage is avoided, and the stability of the system is improved.

The utility model discloses a high-immunity anti-stress freshwater fish compound feed stirring device, which relates to the technical field of feed stirring devices and comprises a stirring device main body, and one side of the stirring device main body is rotatably connected with a fixing frame. According to the stirring device for the high-immunity anti-stress freshwater fish compound feed, the driving motor drives the driving gear to drive the meshed driven gear, and the driven gear drives the meshed gear ring to drive the stirring device main body to rotate in the fixing frame, so that the mixed feed in the stirring device main body is poured out; compared with a vertical stirring tank which discharges the internally mixed feed through a bottom discharging pipe, the stirring device body which is transversely placed can pour the internally mixed feed at a time, workers can conveniently and rapidly start next stirring and mixing, and the stirring device body which is transversely placed in the fixing frame and has the same size can conveniently and rapidly stir and mix the feed. Compared with a vertical stirring tank, the feeding height is lower, so that a worker can feed materials conveniently, and the stirring tank is more convenient to use.

The invention discloses a combined saw blade for grooving, and aims to overcome the defect that a plurality of saw blades with different tool bit widths are required to be prepared for grooving machining of grooves with different widths, so that the operation is very inconvenient. The saw blade comprises a plurality of saw blade base bodies which are fixedly connected together, a plurality of saw teeth are evenly distributed on the edges of the saw blade base bodies, a chip guiding groove is formed by a groove between every two adjacent saw teeth, and tool bits are arranged on the sides, facing the cutting direction, of the saw teeth. The tool bits on every two adjacent saw blade base bodies are arranged in a staggered mode, so that the tool bits on one saw blade base body correspond to the chip guiding grooves in the other saw blade base body. According to the combined saw blade for grooving, grooving operation of different groove widths can be achieved, flexibility and convenience are achieved, and reduction of the input cost of the saw blade is facilitated.

The application discloses a battery pack voltage equalization control system, method and battery pack. The control method comprises a charging equalization control process and / or a discharging equalization control process. The charging equalization control process comprises detecting the voltage of each battery module, obtaining a battery module with the highest voltage, controlling the battery module with the highest voltage to bypass and controlling the remaining battery modules to continue dynamic equalization charging. The discharging equalization control process comprises detecting the voltage of each battery module in a discharging state, obtaining a battery module with the highest voltage, controlling the battery module with the highest voltage to increase the discharging current of a battery cell for discharging, and controlling the battery cells of the remaining battery modules to dynamically equalize discharging at a normal discharging current.

This application discloses an uninterruptible power supply system, relating to the field of power supply. The system includes: a power control unit, an aluminum-air battery reactor module, an energy storage start-up battery module, a battery management system, a power conversion unit, and a data acquisition module. The data acquisition unit is used to collect the voltage stability parameters of the mains power and the load power. The battery management system is used to acquire the status parameters of the two battery packs. The power control unit is used to control the power conversion unit and the battery management system based on the voltage stability parameters, load power, status parameters of the aluminum-air battery reactor module, and status parameters of the energy storage start-up battery module, so as to achieve coordinated operation of the mains power, the aluminum-air battery reactor module, and the energy storage start-up battery module. This application uses dual battery packs for coordinated power supply, which can balance the instantaneous response speed for powering the load after a mains power outage with long-term endurance.

The utility model relates to the technical field of corn processing equipment, in particular to an extrusion type corn thresher capable of removing dust, which comprises a main body, a screening plate knocking mechanism is arranged in the main body, and a filter plate cleaning mechanism is arranged in the main body. Through cooperation of the main body and the filter plate cleaning mechanism, an operator rotates a rotary knob, the rotary knob drives a worm to rotate, the worm drives a worm gear to rotate, small-size corn kernels on a filter plate are scraped off, the small-size corn kernels can be prevented from being adsorbed as dust through the mode, and therefore the working cost of the corn thresher is reduced; according to the corn thresher, the main body is matched with the screening plate knocking mechanism, the second motor drives the incomplete gear to rotate, the incomplete gear drives the gear to rotate, corn cobs can move to the first baffle, corn kernels can be prevented from being blocked in the mode, the discharging speed of the corn kernels is increased, and the working efficiency of the corn thresher is improved.

The utility model provides a wax mould dewaxing device, which belongs to the technical field of dewaxing devices, and aims to solve the problems that the melting speed is low, the efficiency is low, wax liquid may remain in part of moulds due to different shapes of models, and more time needs to be consumed for cleaning when the wax moulds are put into hot water to be melted during dewaxing. The rotary supporting mechanism is rotatably inserted into the heating box body; one end of the flushing assembly is connected with the rotary supporting mechanism; the driving mechanism is mounted on the surface of the heating box body; the auxiliary fixing mechanism is mounted on the surface of the rotary supporting mechanism; according to the utility model, the internal bracket can be used for fixing the mold without influencing the discharge of wax liquid; the mold can rotate, a pouring opening faces downwards, the wax liquid discharging speed is high, and efficiency is high; the flushing assembly can assist in flushing the interior of the mold, and wax liquid residues are avoided.

The utility model provides a battery cell discharging device, the battery cell discharging device comprises a clamping mechanism, a pressing mechanism and a discharging mechanism, the clamping mechanism comprises a groove body, a shell and a clamping assembly, and the shell is connected to the groove body and is provided with a movable channel; the clamping assembly comprises a variable pitch shaft, a driving motor, a plurality of sliding blocks, a guide rail and a plurality of clamping plates; the variable-pitch shaft is arranged in the movable channel in a penetrating mode and rotationally connected to the shell, the variable-pitch shaft is connected to the driving motor, the variable-pitch shaft is provided with a plurality of variable-pitch spiral grooves, a sliding arm arranged on each sliding block in a protruding mode is embedded into one variable-pitch spiral groove, each sliding block is connected with a clamping plate, the guide rail is connected to the shell, and the multiple sliding blocks are arranged at intervals in the length direction of the guide rail; the pressing mechanism is arranged above the groove body; the discharging mechanism is electrically connected to the pressing mechanism. The variable pitch shaft drives the sliding block and the clamping plate to clamp the battery cells with different thicknesses, so that the applicability of the battery cell discharging device is improved; the clamping mechanism and the pressing mechanism clamp a plurality of battery cells, and the discharging mechanism discharges the plurality of battery cells, so that the discharging efficiency is improved.

The invention relates to the technical field of ship designing and manufacturing, and discloses a hinged type conical mud door and a mud door wedge opening device of a trailing suction dredger, the hinged type conical mud door comprises a conical mud door, a transmission device and the mud door wedge opening device, the transmission device is arranged on a mud cabin cross beam and is close to a mud cabin inner surrounding wall plate, and the mud door wedge opening device is arranged on a mud cabin ship bottom plate and is close to a mud cabin inner surrounding wall plate. An opening is formed in the hopper door wedge opening device, the conical hopper door is arranged in the opening of the hopper door wedge opening device, the side, away from the inner enclosure bulkhead plate of the hopper, of the conical hopper door is hinged to the hopper door wedge opening device, and the transmission device is connected with the side, close to the inner enclosure bulkhead plate of the hopper, of the conical hopper door. According to the hinged type conical mud door and the mud door wedge opening device, due to the arrangement of the mud door hinges, the main chain can be arranged closer to the root of the mud cabin cross beam, the hydraulic oil cylinder is closer to the broadside of a dredger body, the size of the mud cabin cross beam is optimized, the loading space of a mud cabin is increased, and the loading and unloading efficiency of a dredger is improved.

The invention provides a battery which comprises a shell, a battery cell and a blocking piece, the shell comprises a shell body and a cover plate, the shell body is provided with a bottom wall, a first side wall and a second side wall, the bottom wall and the cover plate are oppositely arranged, one side of the two opposite sides of the first side wall is connected with the bottom wall, the other side of the two opposite sides of the first side wall is connected with the second side wall, and the included angle between the first side wall and the second side wall is larger than 90 degrees and smaller than 180 degrees; the battery cell comprises a battery cell body and tabs led out from at least one end of the battery cell body, the end face, where the tabs are led out, of the battery cell body is a first end face, and the orthographic projection of the joint of the first side wall and the second side wall on the plane where the first end face is located is located in the first end face; the blocking piece is at least partially located between the first end face and the connecting position of the first side wall and the second side wall, the orthographic projection area of the blocking piece on the first end face is S1, the area of the first end face is S2, 0.6 < = S1 / S2 < = 0.95, and the problem that the anti-explosion valve cannot be normally opened due to the fact that the connecting position of the first side wall and the second side wall is firstly broken through is avoided.

The present invention discloses a flat tube discharge device, which belongs to the technical field of flat tube production equipment for heat exchangers. The flat tube discharge device includes a driving member; a material beating assembly, the material beating assembly abuts against the flat tube to discharge the flat tube; and an intermediate connecting rod mechanism, one end of the intermediate connecting rod mechanism is drivingly connected to the driving member, and the other end is connected to the material beating assembly, the driving member drives the intermediate connecting rod mechanism to move, so as to drive the material beating assembly to return to the origin after discharging the flat tube, and not to contact the next flat tube. The present invention has the following beneficial effects: the intermediate connecting rod mechanism can drive the material beating assembly to move, so that the material beating assembly can avoid contact with the next flat tube in the process of returning to the origin; the material beating assembly will not cause friction with the flat tube, and friction damage to the undischarged flat tube and the material beating assembly can be avoided at the same time.

The present application relates to the technical field of vehicle traction control, and discloses a vehicle traction control circuit, a discharge control method, an inverter and a high-voltage box. The bus is used to receive an electrical signal from an external power source, and the electrical signal from the bus is converted and output through an inverter circuit connected to the bus to pull the vehicle. The inverter circuit includes a capacitor, a first resistor and a switch component, and the capacitor is connected in series with the bus; the first resistor and the switch component are connected in series and connected in parallel with the capacitor, and the first resistor is used to discharge when the voltage in the inverter circuit is greater than a preset threshold. When the capacitor needs to be discharged, the switch component is closed, and the discharge circuit formed by the capacitor, the first resistor and the switch component is turned on to discharge the voltage of the capacitor through the first resistor. The existing first resistor in the circuit is used for active discharge, and there is no need to set an additional resistor, thereby reducing costs.

The utility model relates to the technical field of flame retardant adding equipment, and discloses flame retardant adding equipment for hydraulic rubber hose processing, which comprises a base, the outer wall of the base is fixedly connected with a fixing plate, the top end of the base is rotatably connected with a clamping component, and the inner wall of the base is connected with a bottom plate in an inserted manner. The bottom end of the clamping assembly is inserted into the inner wall of the bottom plate, the top end of the bottom plate is fixedly connected with a connecting column, the top end of the connecting column is fixedly connected with a main pipe, the right end of the main pipe is fixedly connected with a hydraulic pusher, the output end of the hydraulic pusher is fixedly connected with a conveying pipe, and the left end of the conveying pipe is fixedly connected with a connecting plate. According to the flame retardant feeding device, the size of the cavity of the material conveying pipe can be adjusted by moving the quantitative plate, so that manual measurement is avoided, the purpose of adjusting the dosage of the flame retardant is achieved, the inner wall of the cavity can be scraped through the quantitative plate, and the discharging speed of the flame retardant is higher.

The present application provides a discharge device for a PD chip and a discharge method thereof. The discharge device includes a temperature detection circuit, a discharge current selection module and a discharge mode selection module. The temperature detection circuit is used to detect the temperature of the PD chip. The discharge current selection module is used to select a corresponding discharge current according to a discharge voltage to be discharged by the PD chip. The discharge mode selection module is used to select a discharge mode corresponding to the discharge current according to the detected temperature of the PD chip. The discharge method includes: detecting the temperature of the PD chip; selecting a corresponding discharge current according to the discharge voltage to be discharged by the PD chip; and selecting a discharge mode corresponding to the discharge current according to the detected temperature of the PD chip. The discharge current of the present application can adapt to different discharge voltages to be discharged by the PD chip, and different discharge modes can be selected according to the detected temperature of the PD chip, so as to achieve optimal performance and safety.

The utility model discloses a tangential feeding and discharging ore grinding barrel of a tower mill and belongs to the technical field of tower mills. The spiral stirrer comprises a barrel and a spiral stirrer arranged in the barrel, a feeding pipe is arranged on the lower portion of the barrel, a discharging pipe is arranged on the upper portion of the barrel, a feeding connecting flange is arranged at the outer end of the feeding pipe, the tail end of the feeding pipe is tangent to the side wall of the barrel, and a feeding opening is formed in the connecting position of the feeding pipe and the barrel. The outer end of the discharging pipe is provided with a discharging connecting flange, the tail end of the discharging pipe is tangent to the side wall of the barrel, a discharging port is formed in the connecting position of the discharging pipe and the barrel, and the direction of the slurry flowing out of the discharging port is tangent to the rotating direction of the spiral stirrer. According to the utility model, the problems of feeding blockage and unsmooth discharge of fine particle materials of the tower mill can be solved.

The present invention discloses a cooking utensil and a control method for the cooking utensil, which belong to the field of household appliance technology and are designed to solve the problems of slow heat dissipation speed of existing cooking utensil. The cooking utensil provided by the present invention comprises: a box body, in which an exhaust passage, a cooking cavity and a vent pipe are arranged, and the vent pipe connects the cooking cavity to the exhaust passage; a baffle plate, which is used to open or cover the vent pipe; and a longitudinal drive device, which is used to drive the baffle plate to move along the axial direction of the vent pipe. The cooking utensil and the control method for the cooking utensil provided by the present invention use the baffle plate to open or cover the vent pipe, which can improve the efficiency of exhausting hot air and oil smoke and avoid scalding accidents; and can also avoid unnecessary heat loss, and the temperature in the cooking cavity rises quickly, which is convenient to use.

The utility model relates to sewage treatment technical field, concretely is a bottom dredging device for sewage treatment, including sewage treatment tank, the top surface of sewage treatment tank is installed with the support plate, the top surface of support plate is installed with motor body, the output of motor body is installed with screw rod body, the outer surface of screw rod body is installed with the top block, the lower end of top block is installed with cleaning assembly, the inside of sewage treatment tank is installed with conveying assembly. The utility model discloses through cleaning assembly not only can scatter silt before scraping, can also scrape the bottom and the inner wall silt of sewage treatment tank, the operation is more comprehensive, and the use is more convenient, then through the flow tank also can flow silt, through the back and forth movement of the circulation of scraping plate, the silt of sewage treatment tank bottom is transported to the right side of sewage treatment tank and carries out the subsequent conveying.