411results about How to "Improve heat exchange efficiency" patented technology

The invention relates to the technical field of medical instruments, and discloses an isolation melting device and a pulp melting machine. The isolation melting device comprises a fixed frame which defines a mounting space; the movable support comprises a first support and a second support, one end of the first support is rotatably connected with one end of the second support, and the other end of the first support and the other end of the second support can move towards each other or away from each other; the bag body is provided with a bag opening and is connected with the first bracket and the second bracket; wherein the movable support can move into or out of the installation space, when the movable support moves into the installation space, the installation space limits the first support and the second support, the first support and the second support move oppositely, the bag body shrinks, and the area of the bag opening is reduced; when the movable support moves out of the installation space, the installation space relieves limiting of the first support and the second support, the first support and the second support move away from each other, the bag body expands, and the area of the bag opening is increased. Placement convenience of the plasma bag is improved, and heat exchange efficiency is improved.

The invention relates to the field of hydraulic oil cooling, in particular to a hydraulic oil cooler which comprises a tank body, a hydraulic oil inlet, a hydraulic oil outlet, a cooling liquid inlet and a cooling liquid outlet are formed in the tank body, two partition plates are fixedly arranged in the tank body, and a hydraulic oil storage area communicated with the hydraulic oil inlet and the hydraulic oil outlet is arranged between the two partition plates. Cooling liquid flowing areas communicated with the cooling liquid inlet and the cooling liquid outlet are arranged between the two partition plates and the tank body respectively, two cooling assemblies are arranged in the hydraulic oil storage area, a rotating shaft is arranged between the two cooling assemblies, and paddles are arranged on the rotating shaft. Kinetic energy of hydraulic oil is effectively absorbed through rotation of the paddles, the shaking amplitude of the hydraulic oil is reduced, along with rotation of the rotating shaft, the driving assembly drives the cooling pipes to reciprocate, the contact positions between the cooling pipes and the hydraulic oil are changed, the cooling effect is improved, and the cooling effect is improved. And the heat exchange efficiency is improved.

The cooling device comprises a water pump, and the outer wall of the rear side of the water pump is connected with a water inlet pipe and a water outlet pipe; and the cold discharging assembly is arranged on the right side of the water pump and connected with the end, away from the water pump, of the water discharging pipe, and the position, located above the water discharging pipe, of the cold discharging assembly is fixedly connected with a connecting pipe. The invention relates to the technical field of projector liquid crystal screens. According to the cooling device for liquid immersion heat dissipation of the liquid crystal display of the projector, through the arrangement of the water pump, the cooling assembly and the cooling unit, liquid with the higher heat conductivity coefficient can be used for conducting heat dissipation on the liquid crystal display, and the defect that the temperature of the heating face of the liquid crystal display is greatly different due to the fact that traditional air cooling heat dissipation air volume is not uniform is overcome; and meanwhile, the liquid cooling heat dissipation heat conduction and heat exchange efficiency is higher, and the stable display of the liquid crystal screen is greatly improved.

The utility model discloses super-strong steel chemical degreasing powder drying equipment, and relates to the technical field of drying equipment. The device comprises a drying assembly, and an inner cavity of the drying assembly is fixedly connected with a mixing assembly. The heating blocks embedded in the inner wall of the drying box are distributed in an annular array mode, oil removing powder in the drying box can be heated in a full-surrounding mode, compared with traditional bottom or single-side heating, the uniformity of a temperature field in the box is remarkably improved, and the problem of component decomposition or low-temperature caking caused by local overheating is solved; when the planetary gear stirring piece drives the auxiliary stirring rod to revolve around the first transmission shaft, rotation is achieved through meshing of the driven gear and the driving gear ring, and a three-dimensional stirring track of revolution and rotation is formed; the up-down reciprocating piece pushes the main stirring rod to do periodic up-down motion through the cam, so that materials are subjected to transverse shearing mixing and longitudinal stirring in the drying process, the material accumulation dead angle is effectively broken, and the heat exchange efficiency is improved.

The utility model relates to the technical field of transformers, in particular to an oil-immersed power transformer cooling fin structure which comprises a box body, oil collecting boxes and a plurality of cooling fin bodies, the cooling fin bodies are symmetrically distributed on the two sides of the oil collecting boxes, at least every two cooling fin bodies form a cooling fin set, and the oil collecting boxes are located at the two ends of the cooling fin set respectively. Supporting assemblies and reinforcing assemblies are arranged on the two sides, facing the cooling fins, of the box body, the supporting assemblies abut against oil collecting boxes at the bottoms of the cooling fin sets, the two reinforcing assemblies are arranged at equal intervals in the length direction of the cooling fin bodies, one end of each reinforcing assembly is fixedly connected with the outer side wall of the box body, and the other end of each reinforcing assembly penetrates through gaps between the cooling fin bodies. The radiating fins are attached to the outer side surfaces, deviating from the box body, of the radiating fins; convection of transformer oil can be promoted more effectively, and heat exchange efficiency is improved; meanwhile, oil flow can be evenly distributed, and local overheating is avoided; the structural strength of the cooling fin set is remarkably improved, and good safety and adaptability are achieved.

The invention provides a heat recovery device of an air preheater, relates to the field of heat recovery of air preheaters, and aims to solve the problems of flue gas heat loss and insufficient heat recovery in the prior art. The device comprises an air preheater body, a flue gas filter, a fan, a preheating outer frame body, a heat preservation shell plate and the like. The air preheater body is provided with an air inlet pipe opening, an air outlet pipe opening and a heat exchange cavity, and a two-stage filter screen plate of the flue gas filter ensures that the flue gas is clean. The fan drives the spiral blades to make smoke flow spirally, and the circulation path is increased. A spiral liquid guide channel of the preheating outer frame body is communicated with a heat exchange pipeline, and heat exchange between water and smoke and heat exchange between the water and the smoke and the outer shell body are achieved through a booster pump. The heat preservation shell plate reduces heat loss. All the components work cooperatively, heat loss of the shell is effectively reduced, heat recovery efficiency is improved, and the heat exchanger is suitable for the fields of industrial boilers and the like and has remarkable energy-saving and environment-friendly significance.

The utility model provides a cooling and dust removing device for casting sand. The cooling and dust removing device comprises a supporting frame, a feeding bin, a feeding conveying belt, a roller, an exhaust fan, a dust collection mechanism, a driving mechanism, an inner cylinder, an outer cylinder, a hole set, a discharging opening and a sand guide plate. The inner cylinder, the outer cylinder, the exhaust fan and the dust collection mechanism are arranged, and casting sand exchanges heat with airflow generated by the exhaust fan in the process of moving from the inner cylinder to the outer cylinder, so that the temperature of the casting sand is reduced; in the process that the casting sand falls out of the discharging opening, the dust collection mechanism collects dust on the casting sand; therefore, the heat exchange efficiency of the sand for casting is improved, meanwhile, dust is sucked, and the situation that the dust diffuses into the air and pollutes the surrounding production environment is prevented.

The invention discloses an air conditioner air-cooled heat pump air inlet cooling system which comprises an air inlet cooling cylinder, a front end cover is fixedly installed at one end of the air inlet cooling cylinder, a rear end cover is fixedly installed at the other end of the air inlet cooling cylinder, a cooling core set is installed in the air inlet cooling cylinder, and an air distribution disc is arranged at one end of the cooling core set. An air gathering disc is arranged at the other end of the cooling core set, an air outlet pipe is installed in the air gathering disc in a penetrating mode, an air inlet pipe is installed in the air distributing disc in a penetrating mode, and the air inlet pipe is fixedly arranged on the front end cover in a penetrating mode. According to the inlet air cooling system of the air conditioner air-cooled heat pump, when hot air circulates in the outer coil pipe and the inner coil pipe, the hot air is filled in the edge cooling pipe and the center cooling pipe, the hot air wraps the outer coil pipe and the inner coil pipe, and the outer layer and the inner layer of the hot air can be subjected to uniform cooling and heat exchange work; and uniform cooling and heat exchange work is carried out on the air beams, and the situation that the temperature of the inner layer and the temperature of the outer layer of airflow entering the equipment are inconsistent is avoided.

The utility model discloses a novel anode furnace opening water jacket device, which relates to the technical field of non-ferrous metallurgy and comprises a rotary anode furnace body, a water jacket main body, a water jacket protecting plate, a cooling water pipe, a cooling water observation port, a thermocouple and a water temperature abnormity monitoring and alarming system. According to the furnace mouth water jacket device, the temperature of a furnace mouth is mainly controlled through circulating cooling water, on the premise that circulating water of other water jackets is not changed, the side with the large heat load is upgraded and reformed, a path of circulating cooling water is newly added, and the heat exchange efficiency of the cooling water is improved. According to the furnace mouth water jacket device of the rotary anode furnace, the original one-inlet and one-outlet water jacket is changed into the two-inlet and two-outlet water jacket, so that the heat exchange efficiency of cooling water is improved, the temperature difference of each area of the furnace mouth water jacket device is reduced, the deformation of the water jacket is prevented, and the furnace mouth water jacket device of the rotary anode furnace is strong in practicability, energy-saving and environment-friendly.

The utility model relates to the technical field of heating equipment, and provides a heating device. The heating device comprises a box body, an air blowing component and a heat exchange assembly. Wherein a cavity is formed in the box body, an air outlet is formed in one end of the box body, an air inlet is formed in the other end of the box body, and the air outlet and the air inlet are both communicated with the cavity; the air blowing component is arranged in the cavity and used for forming air flow in the cavity, and the air flow flows from the air inlet to the air outlet; the heat exchange assembly is arranged in the box body and used for conveying heat in the warm air into the cavity. A first cover body is arranged at the air outlet and is used for blocking the air outlet; the air inlet is provided with a second cover body which is used for blocking the air inlet. According to the utility model, the defect that the heating equipment for directionally controlling the warm air in the prior art cannot utilize heat in the warm air is overcome, and the heating equipment which can utilize the heat in the warm air and can directionally and centrally control the flow direction of the warm air is realized.

The utility model relates to the field of bath heaters, in particular to a novel bath heater which comprises a main machine and a cover plate, the cover plate is arranged at the upper end of the main machine, the main machine comprises a box body, an air inlet assembly, an air exhaust assembly and a PTC heating assembly, the air inlet assembly sucks indoor air, the air exhaust assembly and the PTC heating assembly are arranged in the box body, and the air is heated by the PTC heating assembly and then blown into a room through the air inlet assembly. The exhaust assembly exhausts indoor air to the outside, the PTC heating assembly comprises a shell and a PTC module, the PTC module is arranged in the shell, the shell is installed on the inner side of the cover plate, the widths of the two ends of the section of the shell are gradually decreased upwards, staggered reinforcing ribs are arranged on the end face of the shell, and the PTC module is arranged in the shell. The upper middle part of the cover plate is provided with a mesh enclosure which corresponds to the air inlet assembly and the exhaust assembly and is provided with a barrier strip, the rear side of the middle part of the cover plate is provided with a cavity for accommodating a wiring module, the outer side of the cavity is buckled with a wire outlet cover, and two ends of the wire outlet cover are provided with wire outlet holes.

The utility model belongs to the technical field of cooling towers, and particularly relates to a cooling tower splash-proof filler which comprises a fixed box and a filler body arranged in the fixed box, and further comprises a flow guide cover fixed at the top end of the fixed box and a flow guide plate arranged in the flow guide cover by utilizing a buffer assembly, a plurality of flow guide holes which are distributed at equal intervals are formed in the flow guide plate, and the buffer assembly comprises a fixing frame which is fixed in the flow guide cover; the guide column penetrates through the fixing frame, and the flow guide plate is fixed to the top end of the guide column; the telescopic spring is arranged on the guide column in a sleeving manner and is positioned between the flow guide plate and the fixed frame; through the design of the buffer assembly and the guide plate, the water flow impact speed is reduced, splashing caused by vertical impact is reduced, the water distribution plate is matched to uniformly distribute water, the water film coverage area is increased, water drops are prevented from quickly passing through the filler, and the heat exchange efficiency is improved.

The utility model relates to the technical field of vehicles, and provides an air drying device and an air suspension system. The air drying device comprises a first containing unit and a second containing unit. The first accommodating unit is provided with a first accommodating cavity, a first communicating hole and a first opening; the first accommodating cavity is used for accommodating a moisture adsorbent; the first opening is communicated with an air outlet of the compressor; the second accommodating unit is provided with a second accommodating cavity, a second communicating hole and a second opening; the second accommodating cavity is used for accommodating a moisture adsorbent; the second opening is used for communicating with an air inlet of an air supply device; wherein the periphery of the first communicating hole is connected with the periphery of the second communicating hole so as to communicate the first communicating hole with the second communicating hole, and a heat dissipation gap is formed between the cavity wall of the first containing cavity and the cavity wall of the second containing cavity. The technical problem that heat of a moisture adsorbent in a drying tank cannot be quickly released is solved.

The invention discloses a flat pipe, a heat exchanger, a vehicle heat management system and a vehicle, and belongs to the technical field of vehicle heat management. The flat pipe forms a first flow channel and a second flow channel which are separated and arranged side by side, the first flow channel is suitable for circulation of a first heat exchange medium, and the second flow channel is suitable for circulation of a second heat exchange medium. Through the partition integrated design of the first flow channel and the second flow channel, the overall structure of the flat pipe is simplified, the overall heat resistance is reduced, and the heat exchange efficiency is greatly improved, so that the heat management effect of the vehicle heat management system is optimized, meanwhile, the machining difficulty and machining cost of the flat pipe are reduced, and the production efficiency is improved. Therefore, large-scale production and popularization and application are facilitated.

The application discloses a die-casting device for window sliding wheel machining, which comprises an operating machine table arranged on the ground, a die-casting base fixedly arranged at the middle of the bottom of the inner cavity of the operating machine table, and a limiting guide rod fixedly arranged at the top of each corner of the die-casting base, and belongs to the technical field of die-casting. The die-casting device for window sliding wheel machining is characterized in that the upper die, the hydraulic rod, the lower die mechanism and the electric telescopic rod are matched to realize efficient and stable die-casting. During die-casting, the structures are cooperatively driven to automatically circulate and flow the cooling liquid, the cooling and shaping are rapidly completed, the processing efficiency is effectively improved, the circulating cooling liquid can drive the inside of the lower die mechanism to generate high-frequency oscillation, the internal bubble defects of the casting are eliminated, the product structural strength and surface quality are improved, meanwhile, the cooling liquid is uniformly disturbed in the die to improve the heat exchange efficiency, the temperature of the cavity is rapidly and evenly balanced, the deformation and cracking of the casting are prevented, the forming precision and product qualification rate are ensured, and the overall structure is simple, stable and reliable in operation.

The utility model discloses a liquid cooling plate which comprises an upper cover plate and a lower cover plate, and a main flow channel is formed between the upper cover plate and the lower cover plate; the water inlet nozzle is communicated with the water inlet of the main flow channel and is used for allowing a refrigerant to flow in; the water outlet nozzle is communicated with a water outlet, corresponding to the water inlet, of the main runner and is used for allowing a refrigerant to flow out; the heat exchange columns are arranged in the main flow channel, and the densities of the heat exchange columns in different areas in the main flow channel are different. According to the liquid cooling plate, the plurality of heat exchange columns are arranged, so that the structural strength of the liquid cooling plate can be enhanced, the contact area between a refrigerant and the flow channel wall can be increased, and the heat exchange efficiency is improved. Besides, the heat exchange columns with different densities are arranged in different areas, so that the flow distribution of the refrigerant in the flow channel can be optimized, the refrigerant is uniformly distributed, and the uniformity of the heat dissipation performance of the liquid cooling plate is improved.

The utility model discloses an axial flow heat radiation servo motor, comprising a casing provided with a cover, the cover is provided with a plurality of air holes, and the casing is rotatably connected with a rotating shaft; the stator assembly is in a circular ring shape and is connected into the machine shell. The rotor assembly is connected to the rotating shaft, the stator assembly surrounds the rotor assembly, and an annular air gap is formed between the rotor assembly and the stator assembly; and the cooling fan comprises an end seat and a plurality of fan blades, the end seat is in a circular ring shape, the end seat is connected to the end part of the rotor assembly, all the fan blades are distributed along the circumferential surface of the end seat, the fan blades are overlapped with the air gaps, the fan blades are overlapped with the air holes, the fan blades are bent towards the extension direction of the rotating shaft, and the fan blades are in central symmetry about the rotating surface of the end seat. The heat dissipation device is compact and reliable in structure, heat dissipation cost can be effectively saved, pertinence of fan blade operation heat dissipation is high, the energy utilization rate is high, heat dissipation efficiency is high, operation stability is high, and stable heat dissipation under the bi-directional rotation working condition can be guaranteed.

The utility model discloses an unmanned vehicle line control chassis high -efficient heat dissipation structure relates to vehicle chassis equipment technical field, is provided with the heat dissipation portion on the chassis, the heat dissipation portion is provided with a plurality of mutually parallel heat dissipation grating, and the inner airflow passage is formed between two adjacent heat dissipation grating, is provided with a plurality of mutually parallel heat dissipation fin on the upper end surface of a plurality of heat dissipation grating, and the outer heat dissipation passage is formed between two adjacent heat dissipation fins, and the interval between two adjacent heat dissipation grating is less than the interval between two adjacent heat dissipation fins, the heat dissipation fin upper edge contour line is extended from both sides to the center symmetry, and one side contour line section includes side horizontal section, large angle drop section, small angle rise section, central horizontal section in proper order, and the scheme simple structure can be high -efficient heat dissipation under the scene such as static parking, low -speed driving, high -speed operation etc.

This invention discloses a liquid-cooled heat dissipation chip structure and its packaging method, relating to the field of chip technology. The liquid-cooled heat dissipation chip structure includes: a chip with accommodating channels formed therein, and coolant filled into the accommodating channels; a substrate, on which the chip is packaged; and a cooling fan mounted on the side of the chip away from the substrate. This invention solves the problem of chip overheating leading to decreased chip computing performance and slowed data processing speed.

The invention relates to the technical field of heat exchange and heat dissipation, and particularly discloses a heat dissipation module with high heat exchange efficiency, which comprises heat dissipation fins, a front fan is mounted on the front side of the heat dissipation fins, a rear fan is mounted on the rear side of the heat dissipation fins, the heat dissipation fins are arranged to be of a uniformly stacked sheet-shaped aluminum structure, and the heat dissipation fins are arranged in the sheet-shaped aluminum structure. Heat exchange copper pipes are installed in the heat dissipation fins in a penetrating mode, evaporation liquid is stored in the heat exchange copper pipes, an expansion mechanism used for increasing the heat exchange area is arranged at the upper ends of the heat exchange copper pipes, and contact blocks are fixedly installed outside the lower ends of the heat exchange copper pipes. According to the heat dissipation module with the high heat exchange efficiency, the expansion pipe is arranged at the upper end of the heat exchange copper pipe, the overall surface area of the heat exchange copper pipe is increased through the expansion pipe, and therefore the overall contact area with airflow during heat dissipation is increased, the overall heat dissipation effect is improved, the surface protruding balls are installed on the outer surface of the expansion pipe, and the surface area can be better increased; and the inner side of the expansion pipe is provided with a through groove for normal passing of airflow.

This utility model relates to an embedded water tank mechanical agitation and scraping powdery material cooler, belonging to the technical field of powdery material cooling devices. The aim is to provide an embedded water tank mechanical agitation and scraping powdery material cooler with a large heat exchange area, high efficiency, and good cooling effect on powdery materials. The technical solution adopted is as follows: multiple cooling water tanks and a mechanical agitation device are installed inside the tank. The structure of the mechanical agitation device is as follows: a horizontally positioned main shaft is rotatably installed in the upper part of the tank, and a lower shaft is parallel to and below the main shaft. The main shaft is connected to the lower shaft through at least two sets of chain drive components. Multiple long, strip-shaped scraper frames are fixed at intervals around the circumference of the chain drive components, and multiple scrapers are fixed on each scraper frame. Multiple cooling water tanks are arranged in two rows on both sides of the main shaft and the lower shaft. The multiple scrapers on the scraper frames correspond to and are inserted into the gaps of the cooling water tanks. This utility model is used for rapid cooling of high-temperature powdery materials.

The utility model discloses a radiator, which relates to the radiator field, and comprises a support main body and a heat radiation assembly, the support main body comprises at least one support column, the support column extends along a first direction, and the first end of the support column is used for being connected with an external heat source; the heat dissipation assembly comprises a plurality of heat dissipation fins, the multiple heat dissipation fins are arranged outside the supporting body in a sleeving mode and distributed at intervals in the first direction, and at least one heat dissipation hole penetrates through each heat dissipation fin; wherein the support main body and the radiating fins are diamond aluminum alloy composite parts respectively; thus, the supporting body and the cooling fins have high thermal conductivity, the thermal conductivity can reach 400 W / (m.K) or above, the high-temperature resistance is improved to 600 DEG C, and the phenomenon of oxidation and falling is avoided, so that the reliability and durability of the radiator under complex working conditions are improved, and the lightweight design of the radiator is facilitated; at least one radiating hole penetrates through the radiating fin, so that the radiating area is increased, and the weight is further reduced; meanwhile, the multiple cooling fins are arranged at intervals, the heat exchange efficiency can be improved, and then the cooling efficiency is improved.

The utility model relates to drying device technical field, including drying cylinder, the coaxial support net cylinder of being fixed with in drying cylinder, the inside wall of support net cylinder inserts the filter cartridge that is consistent with it, and forms material drying area through filter cartridge inner chamber, forms drying gas flow discharge area between filter cartridge outer wall and drying cylinder inner wall, and the material drying area is vertically rotated and is equipped with cloth gas cylinder, and the outer wall of cloth gas cylinder is evenly distributed with a plurality of cloth gas hole, and the outer wall of cloth gas cylinder inserts the blocking net piece that covers cloth gas hole. The utility model overcomes the problem that wet eight bromine ether material particle in traditional technology exchanges heat with drying gas flow, is limited to the distribution structure limitation of drying gas flow, makes drying gas flow not to be able to contact with wet eight bromine ether material particle evenly, and further reduces drying efficiency.

The application belongs to the technical field of thermal error compensation, and discloses a non-metal supporting piece numerical control machine tool thermal error compensation method, which comprises the following steps: S1: when the equipment main body is working, the temperature of the equipment main body is monitored in real time through a temperature sensor, and when the temperature reaches a certain threshold value, a pump, a first motor and a second motor are started through an external power supply; S2: the start of the pump enables the cooling liquid to circulate in the cooling cavity and the conveying cavity, and the whole equipment main body is cooled and circulated, so that thermal error compensation is performed; the temperature of the equipment main body is monitored in real time through the temperature sensor, and when the temperature of the equipment main body reaches a certain threshold value, the cooling liquid can be circulated in the cooling cavity and the conveying cavity through the start of the pump, the whole equipment main body is cooled and circulated, and thermal error compensation is performed.

The application relates to the technical field of heat exchangers, and discloses a self-supporting plate-fin energy-saving heat exchanger which comprises an outer frame, a heat exchange cavity is formed in the inner part of the outer frame, and a plurality of pairs of positioning frames are vertically arranged in the heat exchange cavity. The wave-shaped positioning frames generate longitudinal vortexes when fluid flows through the wave crests and wave troughs, the fluid boundary layer on the surface of the heat exchange pipes is destroyed, and the thermal resistance is reduced; adjacent V-shaped heat dissipation fins make the fluid accelerate and collide at the included angle, secondary turbulent flow is formed, the contact area is enlarged from the micro level, and the heat diffusion is accelerated; the double effects of macro vortex flow and micro turbulent flow greatly improve the heat exchange efficiency compared with the conventional structure, the heat transfer can be realized more quickly and more fully under the same working condition; meanwhile, the heat dissipation fins have the angle-adjusting function, the angle of the fins is adjusted, the dynamic switching of energy saving and high efficiency is realized, and the equipment can flexibly adapt to complex working conditions with different flow rates and temperature differences.

The utility model relates to building energy -conserving equipment technical field, and disclose a kind of green building surface cooling device, including building outer wall, the outer surface of building outer wall is attached cooling plate installation, another side of cooling plate is corrugated cooling surface, the corrugated cooling surface multiple protruding parts and recessed parts, protruding part and recessed part are alternately arranged.The green building surface cooling device, innovation uses bionic corrugated cooling surface structure, by the protruding part and recessed part of alternate arrangement, make cooling area compared with traditional plane structure increase, substantially enhance the heat exchange efficiency with outside air, at the same time, cooling surface coating nanometer titanium dioxide intelligent coating, utilize photocatalytic principle to realize more than 90% solar radiation reflectivity, form the double protection system of " passive heat insulation + active heat dissipation", effectively block outside heat to enter building interior, significantly reduce air conditioning system operating load, realize building energy saving and consumption reduction truly.

The invention relates to the technical field of gas pressure reduction, in particular to a two-stage pressure reducer which comprises a valve body formed by connecting a main body and an aluminum upper cover in a threaded mode, and further comprises a gas source connecting mechanism arranged at a gas inlet in the main body and configured to be connected with an external gas source and filter entered gas; the two-stage pressure reduction mechanism is arranged in the gas source connecting mechanism and the parent body and is used for performing two-stage pressure reduction on the entering gas; the gas outlet mode of the flow meter is an OUT mode, and the flow meter is fixedly installed at the end of the main body through an adapter and is configured to display the flow of output gas; the gas flow channel is arranged in the parent body and is configured to introduce the gas subjected to two-stage pressure reduction into the flow meter and prolong the flow path of the gas in the parent body, so that the gas exchanges heat with the parent body before flowing into the flow meter; according to the gas pressure reducer, the gas flow channel is formed in the parent body, and the problem that gas is frozen when an existing gas pressure reducer works for a long time or is in a low-temperature environment is ingeniously solved.

The utility model discloses a double shaft premixing ware for ammonium chloride rotary drying furnace, include: casing, be provided with heating heat preservation device on the casing, drive arrangement and double shaft mixing device, set up in the casing, and drive arrangement drives double shaft mixing device rotation, double shaft mixing device includes: driving shaft, axially set up in the casing, and the axle head is rotatably connected with the inside of casing, driven shaft, axially set up in the casing, and with driving shaft parallel, and the axle head is rotatably connected with the inside of casing, and synchronous gear, install in the axle end of driving shaft and driven shaft. The utility model can solve the problem of uneven mixing of ammonium chloride material, easy to block and high energy consumption fundamentally.

The utility model relates to the technical field of electric control box heat management, in particular to an electric control box with a heat dissipation structure. The electric cabinet with the heat dissipation structure comprises a shell, a flow equalizing plate and an air deflector. Wherein the shell is provided with a containing cavity, an electronic element is arranged in the containing cavity, and an air inlet is formed in the shell. The flow equalizing plate is arranged in the shell, and a plurality of through holes are formed in the flow equalizing plate. The air guide plate is arranged in the shell, an air channel is formed between the air guide plate and the flow equalizing plate, and the flow equalizing plate is located between the containing cavity and the air channel; the air channel is communicated with the containing cavity through the through hole, and the air channel is communicated with the air inlet. The air guide plate is provided with a plurality of step portions, the air channel is provided with a near-end area and a far-end area, the near-end area is close to the air inlet, air flow in the air channel flows to the far-end area from the near-end area, and the distance between the step portions and the flow equalizing plate is gradually decreased in the direction from the near-end area to the far-end area. The heat dissipation uniformity of the electric cabinet with the heat dissipation structure can be improved, and the heat dissipation performance is improved.

The application belongs to the technical field of household appliances, and particularly relates to a fan rotating speed control method and a heat pump equipment. The fan rotating speed control method provided by the application comprises the following steps: obtaining suction temperature T s of a compressor suction port of a heat pump air conditioner, defrosting temperature T ev of an evaporator of the heat pump air conditioner, and liquid pipe temperature T li of a pipeline between a condenser and an expansion valve of the heat pump air conditioner; when the heat pump air conditioner is in a heating mode or a cooling mode, the running rotating speed of a fan is adjusted according to at least two of the suction temperature T s , the defrosting temperature T ev , the liquid pipe temperature T li , a running frequency f nom of the compressor of the heat pump air conditioner, and a maximum running frequency f max . The fan rotating speed control method and the heat pump equipment provided by the application reduce the energy consumption of the heat pump air conditioner.