52results about How to "Increase cooling air volume" patented technology

The invention discloses a cooling device used for cooling an air compressor. The cooling device comprises at least one fan, a temperature sensor, a controller and a frequency converter, wherein the temperature sensor is used for detecting exhaust temperature of the air compressor; the controller is connected with the temperature sensor and is used for comparing the exhaust temperature with preset exhaust temperature and outputting a signal after comparison; and the frequency converter is respectively connected with the at least one fan and the controller and is used for controlling the at least one fan to output cooling air volume corresponding to the signal after comparison according to the signal after comparison. When the cooling device is in use, a cooing temperature is firstly set, the exhaust temperature of the air compressor is detected by the temperature sensor, when the controller determines that the temperature is lower than the cooling temperature, the power supply frequency of the fan is reduced by the frequency converter, the power of the corresponding fan can be reduced, and the cooling air volume is reduced, therefore, the energy consumption is reduced, the energy sources are saved, and the service life of lubricating oil in the air compressor is effectively prolonged simultaneously. The invention also discloses a cooling method.

The invention relates to a thermal-insulating, oxidizing and cooling device used in vanadium extraction from stone coal and a using method of the device, and the device belongs to the technical field of vanadium extraction. The thermal-insulating, oxidizing and cooling device comprises a secondary air fan, a screening chute, a thermal-insulating and oxidizing segment, a heat compensation system, a cooling segment, a vibrating discharge device and a chain-slat conveyor, wherein the screening chute is supported on a beam at the upper part of the thermal-insulating and oxidizing segment in an inclined way and an angle of 25 degrees is formed between the screening chute and the horizontal surface, the thermal-insulating and oxidizing segment is arranged under the screening chute, the cooling segment is arranged below the thermal-insulating and oxidizing segment; the cooling segment is directly communicated with the thermal-insulating and oxidizing segment in a welded way, the lower end of the cooling segment is connected with the vibrating discharge device through bolts; conveying equipment, namely the chain-slat conveyor is arranged at a 350mm part below the vibrating discharge device; the heat compensation system is arranged 300mm above the connection part of the thermal-insulating and oxidizing segment and the cooling segment; the heat compensation system is connected with the thermal-insulating and oxidizing segment through flange bolts; the secondary air fan is introduced into the cooling segment (5) through an air pipeline; and the air pipeline of the secondary air fan (1) is connected with the cooling segment (5) through flange bolts. The thermal-insulating, oxidizing and cooling device and the using method of the device have the advantages of solving the problems such as insufficient oxidizing atmosphere and short thermal insulation time in stone mine calcination.

The invention relates to a cooling fan, which comprises a pedestal and a fan roller which is arranged on the pedestal. The fan roller consists of a plurality of first blades, a plurality of second blades and a plurality of connecting ribs, each first blade and each second blade are mutually arranged at intervals, each connecting rib is provided with a first edge, a second edge and a third edge, wherein the first edge is connected with a first blade, the second edge is connected with a second blade, the third edge is connected with the first edge and the second edge, a first wind inlet is formed between each third edge and each second blade, each first edge is provided with a first length, each second edge is provided with a second length, and the first length is larger than the second length.

The invention discloses a mixed-flow temperature-uniform cylindrical battery pack. According to the mixed-flow temperature-uniform cylindrical battery pack, a plurality of rows of batteries are bondedwith heat conductive sheets through high heat conductive glue; heat exchanged between a plurality of rows of heat conductive sheets with liquid flow plates on the two sides is realized; each heat conductive sheet is provided with gas flow holes; a small size fan is arranged in the mixed-flow temperature-uniform cylindrical battery pack to promote gas circulating in a battery pack chamber, and enhance mixed flow heat transfer effect of gas flow communication; the gas flow holes of adjacent rows of heat conductive sheets are arranged to be staggered with each other; from the top to the bottom,gaps between the heat conductive sheets and a battery pedestal is designed to be wide and narrow alternatively, so that gas flow longitudinal and transverse multi-dimensional flow disturbance is enhanced further, and heat transfer on the air side of the heat conductive sheets is enhanced. Pneumatic series flow, and hole/gap staggered multi-dimensional gas flow disturbance is capable of realizing auxiliary enhancing of the heat transfer capacity of the air side of the heat conductive sheets and batteries, increasing temperature uniformizing effect of pneumatic series flow among rows, improvingthe battery pack internal temperature uniformity and consistency. The mixed-flow temperature-uniform cylindrical battery pack is suitable for cold and warm heat control process in battery pack heat management, and is promising in application prospect.

The invention provides a centrifugal fan device of a large-discharge-capacity oilless air compressor of a rail transit and a mounting method thereof. The centrifugal fan device comprises a volute and an impeller arranged in the volute, wherein the impeller comprises a front annular disc, a rear annular disc and multiple blades uniformly arranged at the outer periphery between the front annular disc and the rear annular disc; the center hole of the rear annular disc is provided with a fan flange used for connecting the impeller with a motor shaft; a tensioning sleeve is arranged between the fan flange and the motor shaft; the included angle between a tangent line of an outside spur line of the blade and the tangent line in a peripheral direction is less than 13 degrees. The centrifugal fan device is capable of shortening the axial size of installation space needed for a cooling fan, realizing an integrated design of an air supply device in the rail transit, greatly enhancing the compact type of the air supply device, supplying sufficient cooling air amount to the oilless air compressor in the rail transit by use of a limited space and completely meeting the cooling requirement of the oilless air compressor.

The invention relates to a radiating structure of a shell having stream guidance openings of a microwave oven magnetron, which is characterized in that the lateral surface of the shell is provided with a plurality of stream guidance openings, and the lateral surface of the shell provided with the stream guidance openings comprises the lateral surfaces of an upper shell and a lower shell of the magnetron. A cutting piece for cutting the stream guidance openings extends outwards obliquely from the lateral surface of the shell; the stream guidance openings formed by the oblique outward extensionof the cutting piece face the direction of a fan; and the oblique outward extension of the cutting piece on the lateral surface of the shell along the blowing direction of the fan is gradually raised.Simultaneously, the lateral surface and the back surface of the shell on the lower part of the magnetron are provided with through holes, and the lateral surface of the shell on the lower part is over against the blowing direction of the fan. When the magnetron works, the air forced to flow by the fan can enter the shell of the magnetron from different directions and parts at the same time so asto enlarge an air flow passage, increase the radiating air quantity, and improve the radiating and cooling efficiency of the magnetron.

The invention belongs to the field of heat exchange, and relates to a boosted air cooling tower, in particular to an air-cooling power generation air cooling tower structure and an air driving mode. Due to great difference of air temperature in winter and summer and dual action of strong wind, a pure natural ventilation air cooling tower is difficult to meet current cooling requirements. According to the boosted air cooling tower, a structure with axial flow fans of an electric and power generation dual-purpose motor, openable and closeable partition curtains and a warm passage disposed in a natural ventilator is adopted. Cooling capacity of the air cooling tower in summer is greatly enhanced, damage of strong wind is weakened greatly, excess draft in the air cooling tower in winder can be utilized, energy is recovered through the axial flow fans, and the warm passage is opened to melt an accidently-frozen heat exchanger. The boosted air cooling tower can be matched with direct air cooling and indirect air cooling units in various sizes.

The invention relates to a ventilation cooling device for an air-entraining valve. The ventilation cooling device comprises a nozzle, a mixing chamber and a direction adjusting mechanism. The nozzle is in communication with a cold air source and is arranged at an inlet of the ventilation cooling device. The nozzle is provided with an internal passage with the tapered cross section. The mixing chamber is provided with a mixing cavity inside the mixing chamber and a plurality of vent holes in the circumferential wall of the mixing chamber. The vent holes are in communication with the inside andoutside environments of the mixing chamber. An outlet of the nozzle is located in the mixing cavity. The direction adjusting mechanism is connected to an outlet of the mixing chamber and is configuredto be capable of adjusting the ejection direction of the air. According to the ventilation cooling device, the external low-temperature environment temperature can be introduced into the system and used as one cooling source of the air-entraining valve; and meanwhile, the installation flexibility of the ventilation cooling device can be improved through the direction adjusting mechanism.

The invention relates to the technical field of a gas turbine, and particularly discloses a combustion chamber of the gas turbine. The combustion chamber comprises a combustion pressure cylinder, a turbine box, an end cover, a spray nozzle, a flow guiding bush, a flame tube and a transition section, wherein the rear end of the turbine box is connected with the combustion pressure cylinder, the end cover is connected to the front end of the turbine box, the spray nozzle is connected to the end cover, the flow guiding bush is connected to the inner side of the turbine box, the flame tube is positioned in the flow guiding bush, the front end of the flame tube is connected with the spray nozzle, and an inlet of the transition section is connected with the rear end of the flame tube; an output guide vane is arranged in an output of the transition section, the transition section and the output guide vane are of an integrated structure, and air distribution cavities are formed in the output guide vane and the end wall of the front edge of the output guide vane of the transition section. According to the combustion chamber of the gas turbine, disclosed by the invention, the cooling flow of the end wall of the front edge of a primary stationary blade is saved, and the overall efficiency is increased.

The invention discloses an anti-fiber aeration-cooling device for a frequency converter of a two-for-one twister. The anti-fiber aeration-cooling device comprises a bottom plate, a front panel, two side plates, a top cooling cover plate, short fiber filter screens, filter screen cover plates and mesh-shaped air inlet ducts, wherein the front panel and the two side plates are arranged on the bottom plate in an enclosure manner; the two side plates are arranged in parallel; the top cooling cover plate covers the front panel and the two side plates; an opening shell formed by the top cooling cover plate, the two side plates, the front panel and the bottom plate sheathes the back face of a control cabinet frame of the two-for-one twister; cooling screen meshes are formed in the top cooling cover plate; the side face or the bottom part of the opening shell is provided with the mesh-shaped air inlet ducts; seen from the height direction, the mesh-shaped air inlet ducts are lower than the position of the frequency converter; each short fiber filter screen is arranged the inner side of the corresponding mesh-shaped air inlet duct; each short fiber filter screen is pressed by four peripheral edges of the corresponding filter screen cover plate; anti-fiber air inlets are formed in each filter screen cover plate; a gap exists between each filter screen cover plate and the corresponding short fiber filter screen. According to the anti-fiber aeration-cooling device for the frequency converter of the two-for-one twister, the frequency converter can be better protected from the influences of dust and fiber fluffs, and a good aeration-cooling effect is achieved in a limited space.

A non-filler flow-type cooling tower is composed of tower body with air exhaust outlet on top and cold air inlets at lower part, multiple groups of diffuser consisting of gradually widening part, throat and gradually narrowing part in the tower body, a spray tube with several V-shaped nozzles under each group of diffusers, a water remover before air exhaust outlet, and a liquid collecting tray. Its advantages include high heat sinking performance, low air resistance and high quantity of air coming into tower body.

The invention provides adevice and method for controlling the forming thickness of a glass substrate by an overflow method. A soaking box body and a U-shaped cooling air pipe capable of independently controlling the air speed are arranged below an overflow brick tip, and the soaking box body and the U-shaped cooling air pipe are connected to the outer walls of the two sides of the lower end of a furnace body through threads and nuts correspondingly; aiming at the condition that the thicknesses of the glass bodies in the same plane are not consistent, independent control sliding of the soaking box body and the U-shaped cooling air pipe is realized by rotating threads and nuts, so that the distance between the soaking box body and the U-shaped cooling air pipe and the glass bodies is finely and regionally adjusted, rapid cooling of corresponding positions is realized, the viscosity of the glass is improved, and the flowing performance is weakened; and the goal of unifying the thickness is realized, meanwhile, the problems of low cooling efficiency, slow reaction and poor controllability in the prior art are solved, and the process margin of thickness adjustment is expanded.

The invention relates to a method for prolonging the service life of an RH insertion tube. The method comprises the following steps: 1) when an on-line insertion tube is used no more than 80 times, producing the type of steel with the carbon content of molten steel being more than 0.03%, wherein no more than 7 tanks of molten steel is treated in one gunning period, and producing the type of steelwith the carbon content of molten steel being no more than 0.03%, wherein no more than 6 tanks of molten steel is treated in one gunning period; and when the on-line insertion tube is used more than 80 times, producing the type of steel with the carbon content of molten steel being more than 0.03%, wherein no more than 5 tanks of molten steel is treated in one gunning period and the production ofthe type of steel with the carbon content of molten steel being no more than 0.03% is not implemented; and 2) when a new insertion tube is used for the first time, subjecting a vacuum chamber to online heating for more than 0.5 h before the treatment of molten steel, with heating temperature being 950 DEG C or above, and performing tank sticking operation 3-4 times during treatment of molten steelso as to prevent the influence of quenching and rapid heating on a refractory material. The method has the advantage of capacity of improving the service life of the RH insertion tube and enhancing RH operation rate, and reducing refractory cost per ton of steel.

The invention belongs to the technical field of glass bottle production, and discloses a glass bottle cold start-up rapid forming method, which is used for a preheating production stage of a rank machine, the forming method comprises positive blowing, initial mold cooling and mold forming cooling, and the opening timing of the positive blowing is delayed by 70-90 units of periodicity from the opening timing during normal production; the opening timing of the primary mold cooling is delayed by 15-25 units of periodicity from the opening timing during normal production, and the stopping timing of the primary mold cooling is advanced by 50-70 units of periodicity from the stopping timing during normal production; the start timing of mold forming cooling is delayed by 60-80 units of periodicity from the start timing during normal production; wherein the periodicity of one unit is alpha, and alpha meets the following formula: alpha=(t*N)/(360*V). The rejection rate of the glass bottles is greatly reduced and the cost is reduced by delaying the start timing and stop timing of positive blowing, mold forming cooling and initial mold cooling and reducing the cooling air of the bottle conveying machine.

The invention provides an internal cooling device of an oxidized pellet shaft furnace, comprising a cooling zone shell of the pellet shaft furnace, wherein a plurality of primary cooling air supply branch tubes are uniformly arranged on the circumferential ring of the upper part of the sidewall of the cooling zone shell; a plurality of secondary cooling air supply branch tubes are uniformly arranged on the circumferential ring of the lower part of the sidewall of the cooling zone shell; each of the primary cooling air supply branch tubes and each of the secondary cooling air supply branch tubes are connected with an air blower via pipelines; a cooling air collection beam is installed in the cooling zone shell between the primary cooling air supply branch tubes and the secondary cooling air supply branch tubes; a plurality of air collection holes are formed in the bottom surface of the cooling air collection beam; both ends of the cooling air collection beam are connected with an air collection main tube via pipelines; and the air collection main tube is connected with a negative-pressure fan. According to the invention, the ore discharge temperature of the pellet shaft furnace can be effectively reduced, the service life of equipment can be prolonged, and the heat carried by pellet ores can be recycled simultaneously.

The invention relates to a packless fluid hydraulic cooling tower, which comprises a tower body. The inside of the tower body is provided with a spouting pipe and a diffuser; the top part of the tower body is provided with a water eliminator, and the periphery of lower end of the tower body is provided with cold air inlets; and a plurality of baffles are arranged above and on the lower edge of the diffuser. When hot liquid is upwards spouted from the spouting pipe in form of high speed fluid which is shaped into a continuous water curtain, the high speed fluid upwards flows along the outer wall surface of the diffuser and is veered after passing through the plurality of baffles arranged above, and then the veered fluid performs heat exchange with air in the region; when the hot liquid returning back along the outer wall surface of the diffuser is led to the baffles on the lower edge, the hot liquid is spouted evenly to be mixed and exchange heat with incoming cold air for improving the heat dispersion of the cooling tower.