169results about How to "Improve air cooling effect" patented technology

A refrigerant circuit (20) includes a low stage compressor (101, 102, 121, 122), a high stage compressor (41, 42, 43), an outdoor heat exchanger (44) and a utilization side heat exchanger (83, 93). During a defrosting operation of the refrigeration system (10), the high stage compressor (41, 42, 43) is driven. Refrigerant discharged from the high stage compressor (41, 42, 43) is pumped into the utilization side heat exchanger (83, 93) to heat frost on it from its inside. Thereafter, the refrigerant evaporates in the outdoor heat exchanger (44), is then compressed by the high stage compressor (41, 42, 43) and is sent again to the utilization side heat exchanger (83, 93).

A generator with double cooling duct consists of shell, inverter, power generating body and silencer. It is featured as setting power generating body in front or back of cooling fan and connecting it with the first cooling fan coaxially, setting the first and the second cooling fans separately at two ends of crankshaft of engine to let two said fans be driven by engine for forming the first and the second air ducts in said shell.

The invention relates to large three-phase current-converting equipment, in particular relates to a power module group of high-power current-converting equipment. The invention is realized by the following technical scheme that the power module group comprises two power modules with radiators, and a fan for simultaneous radiation of the two radiators; each radiator comprises radiating fins of the power modules; the radiating fins of the two radiators are distributed in opposite direction and in a side-by-side manner; and the air direction of the fan is along the length direction of the radiating fins. The module group has the advantages of a simple air-cooling structure and low energy consumption.

The present invention is improved explosion-proof electric heater and belongs to the field of electric heater technology. The electric explosion-proof heater has one container with inlet, outlet and outer coating heat insulating material; one explosion-proof chamber communicated through welded casings; and one electric heating device inside the container and with leads through the explosion-proof chamber. The improved explosion-proof electric heater has leads penetrating different casings separated by 0.5 mm, and this can avoid the convection of fluid medium in between, reduce heat loss and save electric power.

The invention relates to a cooling device of scooptram mechanism, comprising a vehicle frame, an outer cover, a cooling fan and a heat dissipating device. A mounting deck is fixed on the vehicle frame; the heat dissipating device is fixed on the mounting deck; each component of the heat dissipating device is arranged in three rows in fore-and-after direction; the cooling fan is positioned at the back row and installed at the tail part of the vehicle frame; a water radiator is positioned at the middle row; a charge air cooler and an oil radiator are positioned at the front row; thermal baffles are positioned in front of the charge air cooler and the oil heat radiator; the outer cover is installed on the mounting deck so that the outer cover and the thermal baffles as well as the space surrounded by both form a cooling chamber positioned at the back side of an engine and that the cooling fan, the water radiator, the charge air cooler and the oil radiator are positioned inside the cooling chamber. The cooling device of the invention is separated from an engine body via the cooling chamber, and the air draught is basically in the state of stable flowing when a suction cooling fan works; therefore, the structure reduces the air friction, reduces the working pressure of the fan and has better wind cooling effect.

The utility model relates to a cooling system of permanent magnet generators, in particular to a cooling system of high power permanent magnet generators, which comprises an engine and a permanent magnet generator; wherein, the stator of the permanent magnet generator is arranged on the flywheel casing of the engine; the rotor of the permanent magnet generator is arranged on the crank shaft of the engine. The utility model is characterized in that: the end with fan blades of the rotor is connected with the crank shaft of the engine; the fan blades connected with the rotor are arranged between the flywheel casing of the engine and the permanent magnet generator. The rotor and the stator of the permanent magnet generator are forcibly cooled by the cooling wind generated by the fan blades, which are driven by the rotation of the rotor, The heat transferred towards the permanent magnet of the rotor from the stator is reduced and the effect is good. The cooling efficiency of the stator coil of the permanent magnet generator and the permanent magnet rotor can be greatly improved without increasing the overall size of the generator set, thus ensuring the reliability of the continuous operation, and prolonging the service life of the permanent magnet generator.

The invention discloses a rapid cooling device applied to general nursing. The rapid cooling device comprises a sticking plate, wherein the sticking plate is a hollow elastic plate body; air vents are uniformly distributed in the lower surface of the sticking plate; a control box is fixed to the left side of the upper surface of the sticking plate; and a fan is arranged on an air intake tube in the middle of the upper surface of the sticking plate. The rapid cooling device applied to general nursing, which is fixed by virtue of straps in coordination with latches, is simple to fix; by virtue of non-slip lines, the sticking plate is prevented from rotating; through the fan, controllable fluid can be provided, so that skin surface can be cooled; under pressure caused by the fan, water in a water bag is sprayed out by a trace amount; heat energy is taken away with evaporation of the water, and in coordination with air-cooling, a better effect is guaranteed; meanwhile, the fan can be used for controlling a cooling speed; by arranging a temperature sensor, feedback parameters can be provided for control of the fan timely; an alarm can be triggered as the temperature sensor is separated away from the skin or the water in the water bag runs out; therefore, the rapid cooling device is convenient to control, high in cooling speed and good in effect; and the rapid cooling device is applicable to patient cooling in general nursing.

The invention discloses an electrical control cabinet. The electronic control cabinet comprises an exhaust unit which is fixed at the air outlet at the top wall of the electronic control cabinet, the exhaust unit comprises an air-out pipe and a solenoid valve of the air-out pipe, one end of the air-out pipe is arranged outside the electrical control cabinet, the other end of the air-out pipe is connected with the air outlet at the top wall of electronic control cabinet via the solenoid valve of the air-out pipe, the bottom of the electrical control cabinet is provided with a cold air device, the cold air device is connected with an air inlet at the bottom of the electrical control cabinet via a cold air pipeline, and the air inlet at the bottom of the electrical control cabinet is provided with a filter screen of the control cabinet. The manufacturing type cold air is used to cool components in the electrical control cabinet; compared with natural cold air, the air cooling effect is better, and air cooling is rapider; and the electronic control cabinet is provided with solenoid valves and matched exhausting systems, the temperature in the electrical control cabinet can be effectively adjusted, and it is ensured that the components in the electrical control cabinet can reach the optimal service life.

The invention relates to a hollow ball-screw gas-liquid binary cooling system. The lower end face of an air generator (17) is in an oval hollow annular horn shape, the section of an air inlet is larger that that of an air outlet, the air generator (17) is internally provided with a fan (39) and an impeller (38) driven by the fan (39), the wall of an air cavity (40) for accepting lead-in air is provided with an air inlet hole (37), the wall of an annular air cavity (42) is provided with an air inlet (41), the annular air cavity (42) is provided with an exhausting crevice (44), a Coanda surface (45) is arranged at one side of the exhausting crevice (44), the wall of a central air cavity (34) is provided with an air nozzle (43), and the air injection direction of the air nozzle (43) is directed to a friction surface of a screwpair; and an oil outlet (55) of a frequency-conversion refrigerating system is connected with an oil inlet pipe (9) of a hollow ball-screw (13), an oil inlet (56) of the frequency-conversion refrigerating system is connected with an oil outlet pipe (26) of the hollow ball-screw (13), and cooling oil is transmitted through the hollow ball-screw (13).

The invention discloses a system and a method for producing a fracturing propping agent by taking red mud as a raw material. The system comprises a charging machine, a high temperature furnace, a swing-out device, a blanking bin, a tempering furnace and screening equipment, wherein the high temperature furnace is connected with the blanking bin or the swing-out device; dosing is performed by taking inorganic solid wastes as raw materials; and the product is prepared by performing high-temperature melting in the high temperature furnace and molding in a molding device. The method comprises the following steps: (1) dosing, namely mixing pure red mud or red mud with one or more of fluorite, silica sand, potassium (or sodium) feldspar and dolomite; (2) mixing and performing wet grinding, namely mixing and performing wet grinding on the prepared materials; (3) drying and granulating; (4) melting the granulated materials in the high temperature furnace; (5) molding the granulated materials into propping agent granules by utilizing the molding device; and (6) screening, weighing and packaging the propping agent granules by virtue of the screening equipment. The system and the method are high in product yield, high in production efficiency and low in cost.

An air cooling diesel engine comprises two cylinders which are arrayed in V shape to the left and right parts. To the included angle of the two cylinders fix a camshaft for feed supply. One of the two supporting shaft neck to the ends of the camshaft is linked to the body bearing hole, the other one is linked to the crankcase cover bearing hole. To the left and right cylinders install one hydraulic pressure supporting column separately for camshaft air inlet and outlet. To the top of the included angle of the two cylinders installs a speed regulator and oil injector. To the body back installs a wind scooper. The engine is characterized of simple structure and prior performance, no need of water and light in weight. It is of stable performance and easy for maintaining. It can be applied to power generating set, lawn mover, garden machine, high speed and high pressure water pump, oil pump, boat engine.

The invention discloses an air-cooled high-temperature alloy carbon black reaction furnace and a carbon black preparation method. The air-cooled high-temperature alloy carbon black reaction furnace comprises a casing, an air inlet assembly and a gas fuel inlet assembly which are positioned on the casing, and a combustion chamber arranged in the casing, the combustion chamber is provided with a throat pipe section, a raw material oil nozzle is arranged on the throat pipe section, and the combustion chamber comprises a flame tube; and a plurality of cooling holes are formed in the flame tube, and the axes of the cooling holes incline in the downstream direction from outside to inside. The invention provides the air-cooled high-temperature alloy carbon black reaction furnace and the carbon black preparation method, the problems in the prior art that the cooling mode of a carbon black reaction furnace is insufficient and the generation quality of carbon black is influenced are solved, andthe purposes of reducing the gas scouring influence and improving the generation quality of carbon black are achieved.

The invention discloses a scroll compressor assembly, belongs to the technical field of compressors, and particularly relates to a scroll compressor assembly. The invention provides the scroll compressor assembly which is good in radiating effect, is high in working efficiency and is small in product size. The scroll compressor assembly comprises a static scroll plate, a dynamic scroll plate, a front frame part, eccentric pin rolls, a motor, an adapting part, a primary balance block and a secondary balance block. The structural key point of the scroll compressor assembly is that the upper end of the front frame part is connected with the static scroll plate, and the lower end of the front frame part is connected with a rear frame part; a gas outlet is formed in the middle of the static scroll plate, and gas inlets and upper bearing holes are formed in the side part of the static scroll plate; lower bearing holes, which correspond to the upper bearing holes, are formed in the periphery of the dynamic scroll plate; the lower bearing holes are connected with the lower ends of the eccentric pin rolls through lower bearings; and the upper bearing holes are connected with the upper ends of the eccentric pin rolls through upper bearings.

The invention relates to a high-efficiency evaporative type cooler, which comprises a water spray device, fin tubes (7) sprayed by the water spray device, a water reservoir (3) arranged under the fin tubes (7), a water supplementing pipe (4) supplementing cooling water to the water reservoir, and an induced draft fan (5) used for driving air to flow; and the high-efficiency evaporative type cooler is mainly characterized in that the fin tubes (7) enclose a hollow and upright cylinder (6) of which the upper port is connected with the suction opening of the induced draft fan (5) and the lower port is sealed by water in the water reservoir (3). Compared with the prior art, the high-efficiency evaporative type cooler not only utilizes the induced draft fan to bring away water vapor formed by vaporizing the cooling water sprayed on the fin tubes, but also forces a great deal of air to scrub the fin tubes to make the fin tubes subjected to good wind cooling function so as to obviously improve the heat exchange efficiency of the fin tubes and make the evaporative type cooler have higher cooling efficiency.

An evaporator including an evaporator core having a refrigerant inlet and a refrigerant outlet in one side portion thereof, and a connecting member joined to the side portion of the core and having in its interior a refrigerant inlet channel and a refrigerant outlet channel. The connecting member includes first and second plates. The second plate has an inlet channel recessed portion and an outlet channel recessed portion provided, each in the bottom wall thereof, with an inlet pipe connecting opening and an outlet pipe connecting opening, respectively. The first plate has on the outer surface thereof a refrigerant flow smoothing projection projecting toward the inlet pipe connecting opening. Refrigerant flowing into the inlet channel flows along the projection surface, thereby changes its flow direction smoothly and is less likely to produce a turbulent flow. The evaporator is therefore adapted to prevent occurrence of noises due to refrigerant flow.

The invention provides an electronic information wireless communication device. The device comprises a wireless communication box and a component radiator. A vertical plate is arranged in the wirelesscommunication box and divides the wireless communication box into a power chamber and a working chamber, the component radiator is placed in the working chamber, and a first air pipe is embedded in the position, on the vertical plate, of the power chamber. According to the invention, through starting the reinforced blower, air blown out enters the first air pipe through the air outlet vertical pipe and the air outlet transverse pipe. Meanwhile, the air outlet direction faces the second air pipe. Therefore, air is continuously blown into the heat accumulation box, and the flow speed is increased, so that negative pressure is generated, air flow in the working chamber is discharged to the air outlet, the direction of the air flow firstly enters the working chamber from the air inlet, then enters the third air pipe from the first air pipe and the second air pipe and is finally discharged through the air outlet, heat generated by the component radiator is brought out through air flow, andthe circulating heat dissipation effect is achieved.

The invention discloses a high-stability rolling machining device for explosion-proof aluminum foil and a using method thereof. The device comprises a support, a first pinch roll is rotationally arranged on the front surface of the support through a first bearing pedestal, a cross beam block is arranged at the top end of the support, and a second pinch roll is rotationally connected to the lower surface of the cross beam block through a bearing pedestal and a bearing; and the second pinch roll and the first pinch roll are located on the same plane, a mounting plate is fixed to the lower end ofthe front surface of the support, and a fixing block is arranged on the front surface of the mounting plate. By arranging a limiting roller, a movable block, a fixed block, a limiting block, a secondball, a connecting rod and a heat dissipation hole, it is convenient to prevent an aluminum foil material from deviating and inclining leftwards and rightwards when the aluminum foil material is pinched, and the pinching effect is improved conveniently; and through an air guide block, a connection thread pipe and an air guide pipe, poor cooling effect on the surfaces of the second pinch roll andthe first pinch roll and larger thermal fatigue damage to the surfaces of the second pinch roll and the first pinch roll are avoided.

The invention discloses a cooling device for a die casting machine and a cooling method thereof. The cooling device for the die casting machine is characterized by comprising a cooling clamping jaw, acooling bracket and an air cooling fan group, wherein the cooling clamping jaw comprises a channel steel compartment, a workpiece fixing air cylinder, a clamping head and a top block; the workpiece fixing air cylinder is arranged on the front end of the channel steel compartment; the top block is fixed to a piston rod of the workpiece fixing air cylinder and can horizontally move along with the piston rod of the workpiece fixing air cylinder; the clamping head is arranged on the other end of the channel steel compartment and can be engaged with the top block; and the cooling clamping jaw is fixed to the cooling bracket by a fixed block. According to the cooling device for the die casting machine, the production safety is guaranteed, the cooling efficiency is greatly improved, and the aircooling effect is obvious.

The invention belongs to the technical field of slag cooling equipment and discloses an efficient water-cooling and air-cooling slag cooler. The efficient water-cooling and air-cooling slag cooler is used for solving the problems that an existing slag cooler is low in heat transfer efficiency and low in cooling efficiency. The efficient water-cooling and air-cooling slag cooler comprises a base. A slag cooling cylinder is arranged on the base. The front end and the rear end of the slag cooling cylinder are provided with a front supporting ring and a rear supporting ring respectively. A gear ring is installed on the portion, between the front supporting ring and the rear supporting ring, of the outer wall of the slag cooling cylinder. The gear ring is engaged with a driving device. The slag cooling cylinder comprises an inner cylinder body and an outer cylinder body. The outer cylinder body is arranged on the periphery of the inner cylinder body in a sleeving mode, and a cavity is formed between the inner cylinder body and the outer cylinder body. A cooling water inlet and a cooling water outlet are formed in the outer cylinder body. The cooling water inlet and the cooling water outlet are communicated with the cavity. A spiral guide piece is arranged on the inner wall of the inner cylinder body. A middle cylinder body is arranged between the inner cylinder body and the outer cylinder body. A vacuum steam cavity is formed between the middle cylinder body and the inner cylinder body. A liquid absorbing core is arranged on the inner wall of the steam cavity. The steam cavity is filled with working liquid. At least two annular baffle rings are arranged in the inner cylinder body.