375results about How to "Increase heat" patented technology

The invention relates to the technical field of insulators, and discloses an insulator assembly convenient to clean, comprising: a steel cap; the glass umbrella tray is arranged at the lower end of the steel cap, and a connecting cement block fixed with the steel cap is arranged on the glass umbrella tray; the steel foot is fixed on the lower surface of the glass umbrella tray so as to be matched with the other steel cap; the ceramic umbrella disc is rotationally mounted on the outer surface of the steel cap so as to shield the contact part of the glass umbrella disc and the steel cap; by arranging the ceramic umbrella tray, the first inlet, the second inlet, the outlet and the Tesla valve runner, dust and dirt can be well prevented from being accumulated, the cleaning effect of the glass umbrella tray is guaranteed, natural wind and water flow can be guided and accelerated, the cleaning effect on the upper surface of the glass umbrella tray is improved, and the service life of the glass umbrella tray is prolonged. By arranging a rubber block, a ceramic chip and an aluminum strip, the heat of the glass umbrella tray can be well improved, and the ice melting effect is achieved.

The invention relates to the field of bamboo shoot processing, in particular to high-temperature disinfection equipment for wild bamboo shoot processing, which comprises a base, a disinfection cylinder, a water outlet pipe I and the like, a disinfection cylinder is mounted on the base; a heating pipe is arranged in the disinfection cylinder; the disinfection cylinder communicates with a water outlet pipe I; an electric valve is arranged in the first water outlet pipe. Bamboo shoot strips are pressed into water through cooperation of a first plugging disc and an intercepting net, then the bamboo shoot strips are stirred through a stirring rod, bamboo shoot scraps float upwards after being separated from the bamboo shoot strips and are located above the first plugging disc, a first fan-shaped through groove is plugged through a second plugging disc, and the bamboo shoot scraps can only be located above the first plugging disc; and finally, the water and the bamboo shoot scraps above the plugging disc I flow into external storage equipment through a water outlet pipe II, so that the bamboo shoot scraps in the bamboo shoots are removed, and the situation that storage of the bamboo shoots is affected by microbial contamination, moisture transfer, enzymatic reaction, chemical reaction and other factors easily due to the boiled bamboo shoot scraps after subsequent high-temperature disinfection of the bamboo shoots is prevented. Therefore, the overall quality of the bamboo shoots is influenced.

The invention relates to the technical field of wastewater treatment equipment, in particular to a forced circulation evaporation crystallizer with a refrigeration loop, which comprises a circulation pipe, a preheating chamber, a stock solution pipe, an input outer pipe, an output outer pipe, a compression pipe, a crystallization pipe, a liquid distributor, a flow combiner, a heat exchange outer pipe and a transition pipe, through the superposition design of the heat exchange outer pipe and the heat exchange inner pipe, the heat obtained by the high-salinity wastewater in the single circulation process is greatly increased, the evaporation efficiency of the high-salinity wastewater in the single circulation process is improved, the circulation times required by the treatment of the high-salinity wastewater in unit volume are reduced, and the energy consumption is reduced. Therefore, the use energy consumption of the forced circulation evaporation crystallizer is reduced.

The invention discloses a method for preparing cement clinker by taking coal gangue as a raw material, and belongs to the field of solid waste recycling. The preparation method comprises the following steps: crushing coal gangue, transferring the crushed coal gangue into a ball-milling tank, adding perovskite manganese oxide nano powder, and carrying out ball-milling mixing, so as to obtain modified coal gangue powder after the ball-milling mixing is finished; and performing acoustic resonance mixing on the ground and dried limestone, manganese slag, copper slag, silica fume, disodium hydrogen phosphate and modified coal gangue powder, calcining after mixing, and cooling to obtain the cement clinker. The coal gangue is used for replacing part of raw materials, under the condition that the quality of the cement clinker is ensured, coal gangue solid waste can be properly treated, waste resources are recycled, organic matter, ash, lignin and other components in the coal gangue can provide part of heat energy, the use amount of fuel coal can be saved, energy consumption is remarkably reduced, and the cost is reduced. Therefore, the production cost of the clinker is reduced.

The invention relates to the technical field of kneading machines, in particular to a kneading machine convenient for mixing and heating, which comprises a kneading box, the kneading box comprises two baffle plates, two side plates are fixed between the two baffle plates, the interiors of the side plates are slidably connected with a rectangular frame, one end of the rectangular frame is fixedly provided with a first extrusion plate, and the other end of the rectangular frame is fixedly provided with a second extrusion plate. Two shaft rods are rotationally connected between the two baffles, a plurality of symmetrically-arranged paddles are fixed to the outer sides of the shaft rods, first gears are fixed to one ends of the shaft rods, and two second gears in meshing transmission with the first gears in the corresponding positions are fixedly and rotationally connected to the outer sides of the side plates. According to the device, a shaft rod drives a first gear to rotate, so that a second output wheel drives a transmission rod to push and pull an L-shaped shaft in a reciprocating mode, the L-shaped shaft drives a second connecting rod through a connecting rod to push or pull a rectangular frame in a reciprocating mode, a first extrusion plate pushes raw materials into a kneading box in the process that paddles rotate to knead the raw materials, and the raw materials actively get close to the paddles; the raw material kneading and mixing effect of the paddle is improved.

The invention relates to an explosion impact test technology, in particular to a solid / gas two-phase explosive wave driven aircraft ground test device and method, and the solid / gas two-phase explosive wave driven aircraft ground test device comprises an anti-static floor, a gas distribution system, a test system, a solid explosive fixed initiation device and a tunnel system, the tunnel system comprises a fixed support, a tunnel, a gas circulator, a first gas exchange pipeline and a second gas exchange pipeline, the gas distribution system comprises a high-pressure gas tank, a high-pressure methane gas cylinder and an air exchanger, and the test system comprises an electronic exploder, a pressure sensor and a flame sensor. Modulation of different overpressures and different durations can be carried out by controlling the solid charge amount, the gas concentration, the solid explosive charge amount, the solid explosive type and the like, the overpressure peak value and the duration of explosion shock waves are adjustable and controllable, and the requirement that external loads of an aircraft continuously change in different flight environments is met.

The invention discloses an ultra-large type high-speed plastic extrusion flat film and flat filament unit which comprises an extruder, a water tank, a film lifting and filament cutting device, a hot air oven, a drafting mechanism, a shaping mechanism and a filament collecting mechanism. The drafting mechanism comprises a drafting rack, a drafting transmission shaft, a drafting shaft unloading device, a drafting roller, a drafting roller connecting sleeve, a drafting roller tensioning sleeve and a drafting roller motor; the number of the drafting transmission shafts is at least three, the drafting transmission shafts are arranged in parallel, the drafting shaft unloading devices extend to the middles of the drafting transmission shafts from one ends of the drafting transmission shafts, and at least two drafting roller connecting sleeves arranged in the radial direction of the drafting roller are arranged in the drafting roller. And a drafting roller tensioning sleeve is arranged between the drafting roller connecting sleeve far away from the drafting rack and the drafting transmission shaft. The ultra-large type high-speed plastic extrusion flat film and flat filament unit is high in operation speed, high in production efficiency, good in stability, low in energy consumption, capable of effectively reducing the production cost, excellent in product mechanical performance and stable in quality.

The utility model provides a pair of robot welding pliers, which relates to the technical field of welding pliers and comprises a support, an insulating block is fixedly mounted on the surface of the support, a fixed large pole arm is fixedly mounted on the surface of the insulating block, and a hydraulic cylinder is fixedly mounted on the surface of the support. By arranging a support, an insulating block, a fixed large pole arm, a hydraulic cylinder, a movable large pole arm, a movable small pole arm, a water tank, a water discharge pump, water guide pipes, a water suction pump and a cooling fin structure, when the robot electrode holder is used for a long time, the temperature of the surface of the support can rise rapidly, the two water guide pipes are installed on the surface of the support, and the water discharge pump releases water in the water tank into the guide pipes; the water suction pump pumps out water in the guide pipe, so that water circulation is formed, the cooling effect on the support is greatly improved, the temperature of the whole robot electrode holder is kept stable, meanwhile, the working efficiency of the electrode holder can be improved, heat on the surface of the movable large pole arm can be sharply increased when a weldment is welded, and the service life of the movable large pole arm is prolonged. The installation of the radiating fins is beneficial for accelerating the heat dissipation of the movable large pole arm.

The invention relates to hydroxyl composite water fuel and a preparation method thereof, and relates to the technical field of fuel. The hydroxyl composite water fuel is prepared from the following raw materials: hydroxyl water, glycerol, Tween 80, diethylene glycol monobutyl ether, lignin and ethylene glycol. When the hydroxyl composite water fuel is prepared, the method comprises the following steps: (1) adding hydroxyl water into wood essence, uniformly stirring, standing and emulsifying to obtain a mixture A; (2) stirring and mixing glycerol, Tween 80 and diethylene glycol monobutyl ether, standing and emulsifying to obtain a mixture B; (3) adding the mixture A into the mixture B, stirring and mixing, and standing and emulsifying to obtain a mixture C; and (4) adding ethylene glycol into the mixture C, stirring, standing and emulsifying to obtain the hydroxyl composite water fuel. The hydroxyl composite water fuel prepared by the method is high in flash point, the calorific value can reach 5000 kal, the hydroxyl composite water fuel cannot be ignited by open fire in a liquid state, and safe use of the fuel can be guaranteed.

The invention belongs to the technical field of metal material science, and particularly relates to a heterostructure plasticized magnesium-based composite material, a preparation method and application. A preparation method of a heterostructure plasticized magnesium-based composite material comprises the following steps that S1, AZ61 magnesium alloy powder, pure titanium carbide and stearic acid are mixed and subjected to low-speed and high-speed ball milling, mixed powder is obtained, and powder loading and cold pressing are conducted after the powder is cooled; and S2, the powder obtained after cold pressing in the S1 is subjected to a gradient heating exhaust vacuum hot pressing process, cooling is conducted, thermal deformation is conducted, and the heterostructure plasticized magnesium-based composite material is obtained. The plasticity of the prepared magnesium-based composite material is obviously improved, and the application potential of the magnesium-based composite material in the industrial field is expanded.

The utility model discloses a seamless stainless steel tube heat treatment device, which relates to the technical field of stainless steel tube heat treatment, and comprises a base, the top of the base is fixedly connected with a support frame, the front side of the support frame is fixedly connected with a first motor, and the bottom of the support frame is movably connected with a transmission mechanism. A heating mechanism is connected to one side of the top of the base in a penetrating mode, and a clamping mechanism is fixedly connected to the other side of the top of the base. The solar panel of the heating mechanism supplies power to the heating wire at the top, so that the temperature of the heating wire rises, the transported stainless steel pipe is heated at high temperature, the heat degree can be controlled through the solar panel, the device is more convenient to use, a second motor can drive a second telescopic rod in the second motor to drive a cold treatment plate to be pushed towards one side, and the cold treatment efficiency is improved. And the stainless steel pipe is clamped by the cold treatment plate, so that the device can abrade a connecting interface of the stainless steel pipe, the device is more delicate in machining, manual operation is reduced, and the device is more convenient to machine.

The utility model relates to the technical field of Internet of Things communication equipment, and discloses an Internet of Things communication equipment temperature energy-saving mechanism, which comprises a box body, the top of the box body is communicated with an exhaust fan, the left side of the exhaust fan is communicated with an air conveying pipe, and the left side of the box body is fixedly provided with a storage box. And a coil pipe communicating with the air conveying pipe is fixedly installed on the inner side wall of the storage box, a supporting plate is fixedly installed on the left side of the storage box, a water pump communicating with the storage box is fixedly installed at the top of the supporting plate, and the output end of the water pump communicates with a water conveying pipe. According to the temperature energy-saving mechanism of the Internet of Things communication equipment, heat supply of electronic components with relatively high heat dissipating capacity to electronic components with low heat dissipating capacity can be improved, the electronic components with low heat dissipating capacity are prevented from being damaged under a low-temperature condition, additional energy is not needed to supply heat to the electronic components with low heat dissipating capacity, and the energy consumption is reduced. Therefore, the purposes of energy conservation and environmental protection are achieved.

The invention discloses a high-temperature steam cooking utensil which is internally provided with a cooking cavity and a water tank, the water tank is internally provided with a water insulation cover and a first heating piece, and the water insulation cover divides the water tank into an evaporation cavity located outside the water insulation cover and an overheating cavity located in the water insulation cover; the first heating piece is used for heating the evaporation cavity to generate steam, a second heating piece and a heat conduction cover are arranged in the overheating cavity, and the second heating piece is arranged in the heat conduction cover in a protruding mode and used for heating the steam and the heat conduction cover. The heat conduction cover is arranged between the waterproof cover and the second heating piece so as to divide the overheating cavity into an air inlet channel and an air outlet channel. By arranging the heat conduction cover located between the waterproof cover and the second heating piece, the heat exchange area in unit volume is increased, the effect that steam is heated for multiple times is achieved, the steam can have the higher temperature in a path with the same length, and the generation efficiency of superheated steam is greatly improved.

The invention discloses a non-heritage digital management platform based on a block chain technology, and relates to the technical field of digital management and protection of intangible cultural heritage. Based on a query interface of an information collection platform of to-be-stored non-heritage information, digital information of non-heritage is received and counted, non-heritage association values of the non-heritage are comprehensively obtained, and the non-heritage association values are grouped and classified according to a preset threshold value, and the non-heritage is classified and stored based on a block chain; collecting historical access data in each group, and collecting historical operation data of block chain nodes; and obtaining a sorting list of non-heritage attention and node stability through calculation, and sequentially storing each group of non-heritage in block chain nodes of corresponding stability sorting according to the attention sorting. Through the block chain technology, security storage, copyright protection and search browsing transaction automation of non-heritage data are realized, and non-heritage management protection and propagation efficiency is improved.

The utility model discloses an automobile control arm machining tool, and belongs to the technical field of automobile control arm machining equipment. An automobile control arm machining tool comprises a base, a support, a sleeve, a limiting ring and a pressing ring. The support is fixedly installed on the upper end face of the base, the support is sleeved with the sleeve, the sleeve is detachably connected with the support, the connecting rod is fixedly arranged on the outer wall of the sleeve, the limiting rings are fixedly installed on the connecting rod, and the control arm is installed between the limiting rings. The pressing ring is arranged at the upper end of the limiting ring and detachably connected with the connecting rod, and the pressing ring abuts against the control arm to limit the control arm; the control arms can be conveniently hung by arranging the limiting rings, so that the situation that the control arms are stacked is effectively avoided, heating is conveniently controlled, meanwhile, the pressing rings are arranged, the control arms can be pressed and limited, collision caused by shaking in the carrying process is avoided, the situation of abrasion is avoided, and the service life of the control arms is prolonged. And the product quality of the control arm is ensured.

The utility model discloses a rubber product processing waste collecting device which comprises a collecting box, box covers are buckled on the surface of the collecting box, the number of the box covers is two, bases are fixedly assembled on the surfaces of the two box covers, the side faces, close to each other, of the two bases are inclined faces, and the side faces of the two bases are inclined faces. And cutters are fixedly assembled on the sides, provided with the inclined planes, of the two bases. Chopped waste materials are placed in a collecting box to be collected, through cooperation of an electric push rod and a jacking structure, the waste materials are placed on a cutter on a base, the electric push rod is started, the electric push rod continuously extends, the jacking structure at the bottom end pushes the waste materials to be attached to the cutter, at the moment, air cylinders are started, supports on the two sides are pushed to continuously move through cooperation of the air cylinders on the two sides, and the waste materials are collected. And therefore, the jacking block moves left and right to drive the jacking structure to push the waste materials to be in continuous contact with the cutter, elastic deformation of the rubber waste materials in the cutting process is avoided, the purpose of cutting the waste materials can be rapidly achieved, and time and labor are saved.

The utility model discloses a natural gas transmission and distribution pressure regulating heating device, including the encapsulation shell, the top hinged of encapsulation shell one side has the L type apron, the inside fixed of encapsulation shell is equipped with primary heating cylinder and secondary heating box in proper order, the pipeline connection between primary heating cylinder and secondary heating box, and the middle part fixed of pipeline is equipped with pressure regulating valve, the top of secondary heating box is fixedly installed with the air -ejecting pump, and the exhaust end of air -ejecting pump is fixedly connected with the top of primary heating cylinder through the backflow pipe, the utility model discloses pressure regulating heating device through primary heating cylinder and the cooperation of secondary heating box, can realize multiple heating, has effectively improved the heat of natural gas in the process of natural gas transmission and distribution, and in the process of pressure regulating heating, through the real -time monitoring of first temperature sensor and second temperature sensor, when the natural gas of not satisfying temperature can backflow to the inside of primary heating cylinder and heat again, ensure natural gas conveying regulation heating effect.

The utility model relates to the technical field of boilers, in particular to a steam boiler with a superheater, which comprises a boiler body, a corrugated boiler furnace arranged inside the boiler body, a burner mounted at one end of the boiler body, a reversal chamber connected to one end of the corrugated boiler furnace, a threaded smoke tube connected to the upper portion of the reversal chamber, and a steam outlet connected to the lower portion of the boiler body. One end of the threaded smoke pipe is connected with a front smoke box, a superheater and a condenser are installed on the top of the boiler body, and one side of the superheater is connected to the front smoke box through a connecting flue. According to the steam boiler with the superheater, through the arrangement of the corrugated boiler furnace and the threaded smoke pipe, the residence time of smoke in the boiler is prolonged, the heat exchange area of the smoke in the boiler is increased, heat can be more sufficiently transmitted to water, and the heat energy utilization rate is increased. In addition, due to the introduction of the superheater, the temperature and the pressure of the steam are further improved, so that the steam has higher heat energy and power capability, and the requirements of various industrial and living fields on high-quality steam are met.

The invention discloses a zinc-containing wastewater recycling device which comprises an oil-water mixed phase separation mechanism and an activated carbon adsorption separation mechanism, the device is used for performing oil-water separation on the zinc-containing wastewater in three stages: in the first-stage separation, a large amount of oil phase and solid impurities are removed under the action of an oil scraper and a settling slope, and in the second-stage separation, the oil phase mixed in the water phase rises to the liquid level along with bubbles to be separated under the action of a compressed air pipe; in the third-stage separation, activated carbon powder is used for adsorbing a residual oil phase in an overflow water phase, a filter press is used for filter pressing, zinc-containing waste water which is relatively clean in oil removal is obtained, oil-water separation of the zinc-containing waste liquid is achieved, and the zinc-containing waste water after oil removal is recycled to a production system. Compared with a chemical method and a high-temperature decomposition method, addition of impurity elements and energy consumption can be effectively avoided, the input amount of activated carbon can be effectively reduced in the carbon powder adsorption process, and the workload of a filter press is reduced, so that the production cost is effectively controlled, and the production efficiency is improved.

Provided are a boron nitride powder having a relatively small particle size, in which an amount of metal impurities present on a surface of the boron nitride powder is significantly reduced, and extremely high purity is achieved, and a method for producing the boron nitride powder. A hexagonal boron nitride powder has an average particle size (D50) of 2.0 to 6.0 um and a specific surface area measured by a BET method of 4 to 12 m2 / g, in which a concentration of a calcium element is 1 ppm or less, a concentration of a silicon element is 5 ppm or less, a concentration of a sodium element is 5 ppm or less, and a concentration of an iron element is 1 ppm or less on a surface of hexagonal boron nitride particles constituting the powder, the hexagonal boron nitride powder preferably has an average aspect ratio (major axis / thickness) of 1 to 7, and is useful as a filler for resin.

The invention discloses a konjak taro ball capable of keeping chewy at low temperature and a preparation method thereof, and belongs to the technical field of konjak taro ball preparation, the konjak taro ball comprises the following components by weight: 15-35 parts of konjak powder, 5-15 parts of tapioca flour, 1-2 parts of a sweetener, 3-5 parts of cranberry pulp, 1-3 parts of vaccinium bracteatum thunb juice, and 40-75 parts of water. Through a specific formula and a specific processing technology, the konjak balls can keep the elastic characteristic at low temperature, and the problem that the quality of the konjak balls is reduced at low temperature in the prior art is solved.

The utility model discloses an on-line preheating machine for PP (polypropylene) production. The on-line preheating machine comprises a machine table, an automatic discharging mechanism, a rotating mechanism and a preheating mechanism, support legs are respectively arranged at four corners of the lower end of the machine table; the automatic discharging mechanism comprises a rotating column and a supporting plate, the supporting plate is located in a rectangular groove in the upper end of the machine table, the front side face and the rear side face of the left end of the supporting plate are rotationally connected with the adjacent inner walls of the rectangular groove through the rotating column correspondingly, supporting arms are arranged at the left end and the right end of the upper surface of the supporting plate correspondingly, and supporting plates which are bilaterally symmetrical are arranged in the middle of the upper surface of the supporting plate; the upper ends of the supporting plates are fixedly connected with the bottom end of the outer surface of a container shell. And the rotating mechanism comprises a rotating shaft and a preheating container, rotating columns are rotationally connected to the inner side faces of the supporting arms correspondingly, and according to the on-line preheating machine for PP production, a PP material is turned over and heated in the container. The PP material is heated more evenly, the preheating effect is better, meanwhile, automatic discharging is achieved, and the working efficiency of PP production is greatly improved.

A heat dissipation system and an electronic component, the heat dissipation system is suitable for a heating element with a horizontal heat dissipation surface, the heat dissipation system includes a plurality of panels arranged in a stacked manner, the plurality of panels are perpendicular to the horizontal heat dissipation surface, a temperature equalizing plate and a heat dissipation component are arranged between the plurality of panels; the heat dissipation component is arranged adjacent to the temperature equalizing plate, at least part of the temperature equalizing plate is located at the bottom of the heat dissipation system in the vertical direction, and at least part of the heat dissipation component is located at the top of the heat dissipation system in the vertical direction; the heat dissipation component includes a refrigerant inlet, a refrigerant outlet and a microchannel, the refrigerant inlet and the refrigerant outlet are respectively located at the edges of the heat dissipation component that are relatively arranged; the microchannel is located between the refrigerant inlet and the refrigerant outlet, and the microchannel is interconnected with the refrigerant inlet and the refrigerant outlet. The present application has a good heat dissipation effect, and is particularly suitable for high-power heat dissipation components with a small-area horizontal heat dissipation surface.

The utility model relates to the technical field of vehicle exhaust and noise elimination structures, in particular to a passenger vehicle exhaust and noise elimination structure which comprises a shell, the front side of the shell is communicated with a communicating pipe, the surface of the shell is fixedly sleeved with a fixing plate, and the surface of the fixing plate is provided with a heat dissipation mechanism. Heat on the surface of the shell is guided out through the heat-conducting fins, the shell is cooled through the heat-conducting fins, the heat-conducting fins are blown through the cooling fan, and the heat on the surface of the heat-conducting fins is dissipated through high-speed gas, so that the heat of the shell is prevented from being too high, and automobile exhaust is prevented from entering the gas guide pipe through the communicating pipe; tail gas and noise are dissipated through holes in the surface of the gas guide pipe, the threaded rod is driven to move up and down by rotating the threaded sleeve, the extending length of the threaded rod is adjusted, after the threaded rod is adjusted to a proper position, the threaded rod is installed in the automobile through the preset bolt, and when vibration occurs again, the shell drives the fixing plate to move up and down.

The utility model discloses a motor capacitor box installation structure which comprises a motor body, a capacitor and a capacitor box, the bottom of the motor body is provided with a plurality of clamping positions, the top of the side wall of the capacitor box is provided with a plurality of climbers, the climbers at the top of the capacitor box are connected with the clamping positions at the bottom of the motor body in a clamping mode, and a stud is arranged in the bottom wall of the capacitor box. The capacitor is provided with a mounting plate, the capacitor is firstly placed in the capacitor box, and the mounting plate of the capacitor is in threaded connection with the stud through a screw, so that the capacitor is fixedly mounted in the capacitor box. The exposed part of the back surface of the capacitor box can improve the heat dissipation performance of the motor, the capacitor is installed on the capacitor box, so that the phenomenon that the capacitor touches the motor body to increase heating and vibration can be prevented, the service life of the capacitor is prolonged, and the use stability of the motor is improved.

The utility model relates to the technical field of heat pumps, in particular to a frostless air source heat pump. A frostless air source heat pump comprises an electric control system, a compressor, a refrigerator and an evaporator, the compressor, the refrigerator and the evaporator are communicated with one another through communication assemblies, a plurality of heat dissipation plates are arranged at one end of the evaporator, a shell is arranged on the surface of the evaporator, and an air inlet matched with the heat dissipation plates is formed in one end of the shell. The heat exchange effect of the evaporator is enhanced by increasing the heat exchange area through the heat dissipation plate, and the heat dissipation plate can be cleaned through the cleaning assembly, so that the heat dissipation plate is kept clean and tidy, the heat exchange efficiency is guaranteed, and more serious frosting is avoided. Therefore, the air conditioner has good heating and defrosting effects.

An inverter control device (70) is provided with: a determination unit that determines whether or not there is a temperature rise request for a temperature rise object; and a control unit that, when it is determined that there is a request for temperature rise, executes temperature rise control including a first mode and a second mode executed after the first mode. The first mode is a mode in which the upper arm switch section in a first specific phase, which is a part of the phases among the phases, is turned on, the upper arm switch section in a phase other than the first specific phase is turned off, and the lower arm switch section in a second specific phase, which is at least one phase other than the first specific phase among the phases, is turned on. The lower arm switch part in the phase other than the second specific phase is turned off. The second mode is a mode in which the upper arm switch section in a first specific phase among the phases is turned on, the upper arm switch sections in phases other than the first specific phase are turned off, and the lower arm switch sections in the phases are turned off.

The invention relates to a multi-section tandem fluidized bed reaction system in the technical field of gas-solid fluidized beds. The multi-section tandem fluidized bed reaction system comprises a gas-solid separation area, a multi-section tandem reaction area and a solid material receiving and circulating area which are sequentially communicated from top to bottom, a reactor and a stocker which are connected from top to bottom are arranged in a segmented reaction area of the multi-segment tandem reaction area, a distributor is arranged in an inner cavity of the reactor, a material disperser is arranged at the bottom of the reactor, a coated raw material feeding line is connected to the side wall of the distributor, and a loose air feeding line is connected to the bottom of the stocker; according to the invention, the problems of short retention time of a single reactor, incapability of continuously supplementing heat for solid particles and the like in a C-type ultrafine particle fluidized bed CVD coating technology are solved, repeated relay coating under the condition of the same raw material and multi-layer coating of different raw materials under the condition of one-time passing can be realized, the yield and the yield of a target product are favorably improved, and the production cost is reduced. The operation stability of a fluidized bed reaction system is improved, and equipment investment and dust pollution are reduced.

Embodiments of the present application provide a middle frame assembly and a display device, and relate to the display field, and improve flexibility of a heat dissipation mode. The middle frame assembly comprises: a middle frame; a back cover, the back cover and the middle frame have a containing cavity therebetween; a heat equalizing structure located in the containing cavity; and a heat dissipation fin located in the containing cavity, a contact area between the heat dissipation fin and the heat equalizing structure being variable.

A heat dissipation structure of a cooling plate for a power semiconductor module, the present heat dissipation structure comprising a power chip, a first solder layer, a copper-clad ceramic substrate, a second solder layer and a cooling plate body, which are sequentially arranged from top to bottom. The heat dissipation structure further comprises a straight rib mechanism and a pin rib mechanism, wherein the straight rib mechanism is arranged on a bottom surface of the cooling plate body, and the pin rib mechanism is arranged on the surface of a straight rib mechanism. The heat dissipation structure overcomes the defects of a traditional flat-plate cooling plate, effectively increases the convection heat exchange coefficient and heat dissipation area of the fluid-solid contact surface, increases the transferred heat caused by the macroscopic flow of the fluid and the delivered heat generated by the heat conduction of molecules in the fluid, enhances the heat dissipation performance of the power semiconductor module, improves the thermal reliability of the power semiconductor module, and prolongs the service life thereof.