45 results about "Cold air intake" patented technology

A supercharged internal combustion engine system wherein during periods of high power demand the weight of combustion chamber charge is increased by cooling a portion of intake air in a turboexpander using high-pressure air from a storage tank. In addition to increasing engine output power, cold air intake also reduces engine pre-ignition (knocking) thereby reducing emissions. Mechanical energy produced during expansion of high-pressure air may be used to operate a turbocompressor, which compresses intake air and further increases charge weight. Effective supercharging is achieved even at low engine speeds. One of the objects of the invention is to obtain more power from small displacement ICE and thus providing automotive vehicles with sufficient acceleration in addition to good fuel economy. Another object of the invention is to enhance turbocharged engines and reduce their response lag. Air storage tank may be recharged using energy recovered during vehicle deceleration.

A comprehensive utilization system for sintering waste heat comprises a cooling tower, a fine powder separator, a waste heat boiler, an induced draft fan, an air intake peripheral pipe and a cold air negative-pressure pipe. The air intake peripheral pipe is arranged on the periphery of the middle-lower part of the cooling tower, the air intake peripheral pipe is communicated with the interior of the cooling tower through air inlets arranged along the circumference at intervals, and the air intake peripheral pipe is connected with the induced draft fan through an air intake pressurization pipe. The cold air negative-pressure pipe is arranged above a discharging port of the cooling tower, the cold air negative-pressure pipe is connected with a cooling air blower through a cold air intake pipe, the cooling air blower is simultaneously connected with a cold air pressurization pipe located below the air intake peripheral pipe, and the cold air negative-pressure pipe and the cold air pressurization pipe are both communicated with the interior of the cooling tower. A material distribution area and a cooling area located below the material distribution area are formed in the cooling tower, a feeding port is formed in the top of the cooling tower, and the discharging port is formed in the bottom of the cooling tower. A material receiving seal valve is arranged in the cooling tower and located below the feeding port. A material distribution seal valve is arranged in the cooling tower and located above the opening of the material distribution area. According to the comprehensive utilization system for the sintering waste heat, secondary hot air generated in the cooling process can be recycled, energy consumption is reduced, and environmental pollution is completely eradicated.

The invention discloses a screw expander dragged sintering wast heat power generation system and method. The system comprises a vertical sinter cooling device, a sintering machine, a bellows, a main flue, a dust collector, a first electric fan, a first fan, a first screw expander, a heat pipe waste heat boiler, a steam supplementing and condensing type steam turbine, a chimney, a generator, a condenser, a first water pump, a second water pump, a third water pump, a deaerator, a fourth water pump, a fifth water pump, a dual-intake dual-pressure waste heat boiler, a cold air intake valve, a second electric fan, a second screw expander, a second fan, a blow off valve, another dust collector, a vertical sinter cooling device intake chamber, a vertical sinter cooling device low-temperature air outtake chamber, a vertical sinter cooling device medium-temperature air outtake chamber and a vertical sinter cooling device high-temperature air outtake chamber. By the system and method, sintering waste heat and energy can be recovered efficiently, power generation efficiency is improved, consumed energy needed for equipment operation is saved greatly, and the system and method is of great significance to energy conservation and emission reduction of iron and steel enterprises.

The invention relates to an air film cooling hole pattern structure which comprises an air film hole and a wall face, wherein an outlet of the air film hole is located in the upstream area of the wallface, the air film hole comprises a cylindrical section and an expansion section, one end of the cylindrical section is a cold air inlet, the other end of the cylindrical section is connected with the expansion section, and an opening is formed in the top face of the expansion section, namely the outlet of the air film hole. The bottom surface of the expansion section is a crescent concave curvedsurface with a sharp corner end, and the crescent concave curved surface is communicated with the cylindrical section. Compared with the prior art, the air film cooling hole pattern structure has thebeneficial effects that on one hand, due to the coanda effect, cold air can expand towards the two sides after reaching the position of the crescent concave curved surface expansion outlet with the sharp corner end, and the transverse spreading area of the cold air film is increased; and on the other hand, the expansion type outlet can effectively reduce the momentum of cold air jet flow, cold air can be well attached to the wall face, and therefore the air film cooling efficiency is improved.

The invention provides an LED lighting lamp aging test box. A box body provided with a left box door and a right box door is arranged, the left box door and the right box door are provided with a hot air port and a cold air port for hot air intake and cold air intake respectively, the tops of the two doors and the top of the box body are respectively provided with a heat preservation layer, the two sides of each top are respectively provided with a circulation air opening, the middle of each top is provided with an atomization water pipe, and therefore control simulation can be carried out on the environment needed in the box body conveniently. An aging rack is placed in the box body and divided into a plurality of test cells. The top of each cell is provided with a flame retardant liner with the wiring end. Due to the fact that supporting boards and partition boards are adjustable in position, the size of the test cells can be adjusted, lamps can be placed according to actual sizes, effective flame retardance can be achieved, and due to the fact that a collection water pipe is arranged to collect water of the atomization water pipe, waste is avoided. The whole LED lighting lamp aging test box is simple in structure, easy to operate, capable of carrying out simulation testing on the aging environment of LED lighting lamps, and suitable for production.

The invention discloses a design method for a heat dissipation system of a wind turbine generator set under a severe environment and the heat dissipation system. An outer air duct is added to a heat dissipation system of an original wind turbine generator set through the five steps of constructing the outer air duct of the heat dissipation system, determining the air volume of the outer air duct, determining the air speed of an air inlet of the outer air duct, determining the area of the air inlet of the outer air duct and forming the air inlet. The air speed of the air inlet is made to be 3 m/s-4 m/s by controlling the area of the air inlet, so that little or no suspended matter is sucked into the outer air duct. Radiators of the original heat dissipation system suck cold air through the outer air duct, and therefore exhaust inlets of the radiators cannot be blocked, the cold air intake volume and the heat dissipation effect are guaranteed, and the wind turbine generator set can meet use requirements under the severe environment.

A motor assembly for a steam vacuum cleaner comprises a flow separation packing which is coupled within a motor cooling casing between a cold air intake duct and an air exhaust duct, so as to maximize cooling efficiency of a wet type motor by separating the sucked cold air from the hot air having undergone a cooling operation.

The invention discloses a low temperature environment testing apparatus. The apparatus comprises a low temperature working bin, a controller, a cold air intake window, an airflow returning window, a cold air circulation channel and temperature-detecting devices; the cold air circulation channel comprises a cold airflow intake channel and an airflow returning channel, a low temperature exchanger is arranged at a position where the cold airflow intake channel and the airflow returning channel joint, a fan set is installed on the cold airflow intake channel or on the airflow returning channel, and the fan set continuously sends cold airflow obtained after the low temperature exchanger carries out low temperature exchange to the low temperature working bin through the cold airflow intake channel and synchronously continuously pumps air in the low temperature working bin to the position where the low temperature exchanger is installed through the airflow returning channel for low temperature exchange, thereby realizing continuous circular flowing of air in the cold air circulation channel. The low temperature environment testing apparatus provided in the invention has the advantages of a simple structure, compact installation, convenient arrangement, simple usage and operation, a good application effect, a fast cooling speed, a good constant temperature effect and low energy consumption and can effectively overcome a plurality of practical problems of conventional low temperature environment testing apparatuses.

The invention relates to a dry spinning organic solvent recovery and air circulating use method. A spinning shaft is respectively provided with a circulating air intake opening and an organic solvent-containing waste air exhaust opening from top to bottom, wherein the organic solvent-containing waste air exhaust opening is sequentially connected with a hot air intake and exhaust opening of a heat exchanger, a circulating air high boiling organic solvent recovery assembly, an electric air valve, an air delivery fan, a cold air intake and exhaust opening of the heat exchanger, an air heater and the circulating air intake opening, a branch pipeline is connected with an air exhaust opening of the circulating air high boiling organic solvent recovery assembly and an exhaust air high boiling organic solvent recovery assembly, a branch pipeline is connected with a fresh air supplementing opening, the electric air valve for controlling fresh air, a fresh air cooler, and an air intake opening of the air delivery fan, and an organic solvent concentration detection instrument is arranged on a pipeline of the air exhaust opening of the circulating air high boiling organic solvent recovery assembly. The dry spinning organic solvent recovery and air circulating use method has the advantages that the solvent recovery cost is low, the running is safe and continuous, one part of air is exhausted to the outside, the negative pressure in the spinning shaft is formed, and other spinning devices are not needed by the spinning shaft.

A handheld work apparatus has a combustion engine for driving a tool of the work apparatus and further has an air filter unit for filtering the intake air of the combustion engine. The work apparatus defines a vertical direction. The air filter unit includes an air filter and a filter housing enclosing the air filter. The air filter extends along a filter axis and has a filter element disposed peripherally around the filter axis, wherein the filter axis forms an angle of inclination (α) with the vertical direction. The filter element has an upper filter section in relation to the vertical direction. The filter housing has, remotely from the upper filter section, at least one air intake window and, in addition thereto, a further upper, permanently open cold air intake window in the region of the upper filter section.

The invention discloses a cooling granulating tower for melts comprising a main tower, an atomizer fixed on the top of the main tower, and a cold air intake system. The air intake system comprises a blower, a condenser and a volute casing connected in series, and the volute casing is disposed on the bottom of the main tower. The atomizer is a centrifugal atomizer. By using the air intake volute casing, a counter-current operation relation is shown between the product and the cold air in the tower, the heat exchange time between the product and the cold air in the tower is greatly reduced, so that the height of the cooling granulating tower is reduced. By using the centrifugal atomizer, the cooling granulating tower has large throughput and is easy to adjust, the product has good particle roundness, and the particle size of the product can be changed by adjusting a frequency converter, the pore diameter of a meshed disc and so on.

The invention discloses a refrigerator for manufacturing overcooled liquid. The refrigerator comprises two storage chambers for forming undercooling chambers in turn, wherein a blowing fan for circulating flow of cool air is arranged inside each storage chamber or at a cool air inlet; in addition, an electromagnetic switch for controlling two storage chambers to respectively become overcooling chambers and a controller for controlling the volume of the cool air entering in each storage chamber and keeping the temperature of each storage chamber to be between the overcooling temperatures are arranged. The refrigerator for manufacturing the overcooled liquid is reasonable in structure, and is capable of realizing alternating refrigeration of two storage chambers, wherein the other storage chamber is in a pre-cooling state when one storage chamber is in a refrigerating state, and meets the conditions for manufacturing the overcooled liquid. In short, the other storage chamber is in a pre-cooling state when one storage chamber is in an overcooling chamber state.

The invention relates to an aluminum profile heat treatment device. The aluminum profile heat treatment device comprises a placing frame for placement of an aluminum profile; the placing frame is a placing frame with a U-shaped structure; a cavity is formed in the placing frame; one side edge of the external of the placing frame is connected with a cold air intake pipe; a plurality of air outlets for throttling and expanding air in the cold air intake pipe to cool the air are uniformly formed in the surface and two sides of the placing frame; support pads for reducing the direct contact area with the aluminum profile are arranged at the ends, which are away from the placing frame, of the air outlets; and a fan for upwards blowing to increase air convection is arranged at the bottom of the placing frame. The aluminum profile heat treatment device has the beneficial effects that the aluminum profile can be preferably cooled through the air outlets in the bottom end; and the fan arranged at the bottom end of the placing frame can upwards blow from the bottom, so that the air convection can be accelerated, the aluminum profile is preferably cooled, and meanwhile, cold air in the cold air intake pipe can be upwards blown to the surface of the aluminum profile for exchange of the cold air and hot air to accelerate cooling of the aluminum profile.

The invention discloses an air intake, wherein a frequency modulation motor is arranged on the air intake. The air intake has the advantages of simple structure, convenience in operation, flexibility and accuracy in control and easiness in maintenance.