55results about How to "Uniform distribution of wind speed" patented technology

The measurement method includes separating large air channel into several parts, measuring the total pressure and static pressure difference of the parts separately with several wind-measuring devices, transferring pressure difference via pressure sensor to signal collector and completing air channel wind amount calculation and display via system unit. The present invention has the advantages of raised measurement precision owing to the grille to commutate; lowered space position precision requirement in wind-measuring device owing to the reduced channel equivalent diameter and size of wine-measuring device; and reduced size of required straight pipe section owing to the reduced channel equivalent diameter.

In an initial stage of a cool down operation of a vehicle air conditioner, a rapid cooling operation is performed while cool air is directly blown to a passenger from direct air outlets. In a later stage of the cool down operation of the vehicle air conditioner, a temperature of an inner wall portion of a passenger compartment is reduced while cool air is indirectly supplied to the passenger of the passenger compartment from the indirect air outlet. Accordingly, cool air can be locally blown to the passenger in the initial stage, and cool air can be supplied to the entire passenger compartment while restricting an adverse effect due to heat radiation of the inner wall portion in the later stage. Thus, operation performance of the air conditioner can be improved while comfortable air conditioning feeling can be given to the passenger in the passenger compartment.

The invention discloses a production method of a melt direct spinning high-modulus low-shrinkage polyester industrial filament, and belongs to the technical field of polyester industrial yarns. The production method is used for a tyre cord. The method comprises melt liquid tackifying, melt direct spinning, draft heat shaping and winding molding. A spinning machine is four heads/ position and six heads/position, due to the fact that melt direct spinning is achieved, and limit of the flow of spinning by a spinning screw does not exist. High-modulus low-shrinkage polyester industrial filaments produced according to the technical scheme of the production method are stable in product quality and high in production efficiency, improve the yield of unit time, and lower production energy consumption and production cost. Products can be used as good materials such as tyre cords, geogrids and polyester cords.

A dehumidification device comprises a dehumidification part disposed in a main body shell provided with a blowout port in a substantially rectangular shape, a wind sending part and a wind direction changing unit (6) changing a wind sending direction of air sent by the wind sending part. The wind direction changing unit (6) comprises a plurality of wind direction changing plates (16) which are disposed at the blowout port and change the wind sending direction of the wind sending part, and a rotary shaft (15) capable of rotationally and fixedly support the wind direction changing plates (16). The rotary shaft (15) extends in the length direction of the blowout port, and the wind direction changing plates (16) are installed in a tilt manner relative to the blowout direction blown out from the blowout port, so the wind sending direction expands in the length direction of the blowout port. At the wind direction changing plates (16) located near the center of the length direction of the blowout port, a gap portion (20) is disposed at the upstream side in the wind sending direction.

The invention relates to an air duct, comprising an air inlet, an air outlet and at least an inward-retracted opening. The air inlet is used for receiving air from outside, and the air outlet is used for guiding the air out from the air inlet. The area of the air outlet is greater than that of the air inlet. The inward-retracted opening is located between the air inlet and the air outlet. The area of the inward-retracted opening is smaller than that of the air inlet. Therefore, the air from the air inlet is contracted gradually and expanded gradually after passing through the inward-retracted opening so that wind speed of the air outlet of the air duct is distributed uniformly, the pipeline loss can be reduced, and the air quantity at the air outlet can be increased.

The invention discloses an air port distributor capable of feeding back and regulating air speed, air direction and air volume. The air port distributor capable of feeding back and regulating the airspeed, the air direction and the air volume mainly comprises a control system and a monitoring system, wherein the control system is used for regulating the air speed, the air direction and the air volume of four air supplying areas; the main control system mainly comprises two area dividing baffle plates, m regulating sheets, a transmission device, a driving device and a control circuit; the monitoring system is used for monitoring the air speed of the four air supplying areas, determining whether the requirements of rules are met, and feeding back to the control system if the requirements ofthe rules are not met, and thus the control system is able to regulate the air speed, the air direction and the air volume of the four air supplying areas again; the monitoring system mainly comprises an air speed sensor, a fixing plate, a single-chip microcomputer and a data transmission wire. With the adoption of the air port distributor capable of feeding back and regulating the air speed, theair direction and the air volume, the practicability and the convenience of a traditional air diffuser can be further improved; and the high efficiency and integration of the air diffuser and an airspeed, air direction and air volume independent air dividing regulating device are realized.

The invention discloses a ''horizontal multi-layer double circulating air rotary multifunctional metal workpiece heat treatment furnace structure'' applicable to the metal heat treatment field. The structure is characterized by setting double air intake adjustable inlet layered air guide plates (1), an air guide cylinder (2), double-arc inner air guide walls (3) and an adjustable opening structure (4), outer air guide walls (5, 6, 7), a double circulating air return structure (8), a double circulating horizontal channel (9), multilayer furnace doors (10), layered annular air guide plates (11), horizontal and beam round tube groups (12, 13, 14). A material rack unit (15) is supported by a rotating shaft (16) and a round tube group (17) to form a multi-layer material platform to place workpieces (20), a motor drives the material platform to rotate around the rotating shaft (16), a heating device provides hot air, and a fan circulates hot air or cold air. The furnace structure provided by the invention realizes hot or cold air zoned distribution control, workpiece heating or cooling is quick and uniform, and the furnace door does not exude air or suck air. With high efficiency and low energy consumption, and compact structure, the furnace structure is especially suitable for solid solution and aging heat treatment of aluminum alloy workpieces.

The invention discloses a production method of melt direct spinning flat polyester industrial filaments. A spinneret plate with special '-' shaped section spinneret orifice is applied. Products are made by tackifying of molten fluid, melt spinning and tension winding molding. By using the production method of melt direct spinning flat polyester industrial filaments, the reaction time is decreased, technological process is effectively lessened, the efficiency is increased, energy consumption is reduced, and the cohesive property is greatly increased on the basis of keeping advantages of common industrial yarn. Because of the approximate rectangle section, the space between yarns is small, the contact area is added, the arrangement is more smooth and compact, and thus the yarn has great raw erectness and high cohesive property, relative good bending rigidity and flexibility. Because of compact arrangement of yarns and increased flatness, the aesthetics after blade coating is greatly increased, the production process is reduced and the production art is simplified.

The invention relates to a structure for arranging an outdoor fan of a window type air conditioner, which comprises a motor arranged at the inner side of an outdoor space and a fan arranged on a rotating shaft of the motor, wherein the inner side of the rotating shaft of the motor is provided with a water fetching ring, a three-folding heat exchanger is arranged between the water fetching ring and the motor and is fixed on the bottom surface of a one-piece box, and the rotating shaft of the motor penetrates through gaps among heat radiating fins in the heat exchanger to be combined with the fan. Because of adopting the technical scheme, the invention improves the heat exchange efficiency of the heat exchanger, and enables fan speed distribution to be evener. Because the fan is arranged in front of the heat exchanger, the fan changes the blowing towards the heat exchanger into absorption, the noise is lowered on the basis of reaching the same air quantity, and the working environment is optimized.

The invention relates to an integrated air conditioning. The air conditioning comprises an indoor panel, a case, an evaporator, an indoor fan, a condenser, an outdoor fan, a compressor and a chassis, wherein the chassis of an air conditioner is stepped; an outdoor part of the air conditioner forms a space structure which is lower than an indoor part; the top of the case of the outdoor part has a downward sloping top plate structure; an air intake barrier is arranged on a top plate; an auxiliary condenser is arranged in the case corresponding to the sloping top plate; the indoor part corresponding to the evaporator is provided with a water pan; and a flow guide pipe is connected with the bottom of the water pan and guides condensed water in the water pan to the condenser of the outdoor part. The heat exchange capacity of the condenser is improved, and thus the whole system energy efficiency of the air conditioner is improved.

A floor-mounted type air conditioner is provided to improve the performance of a heat exchanger by equalizing wind velocity distribution of air passing through the heat exchanger and prevent dew condensation by equalizing wind velocity distribution at a diffuser port. A casing(6) is installed at a lower part of a rear panel(4), containing a motor(7) inside. A ventilating part is formed by supporting the motor by the rear panel and mounting a centrifugal fan(8) at a rotary shaft(10). The casing is formed of a casing suction port(6a) facing a main body suction port(2), and a casing diffuser port(6b) opening upward. A heat exchanger(9) is arranged on the casing in an inverse V shape, wherein the heat exchanger is formed of a rear heat exchanger(9b) and a front heat exchanger(9a) different in the number of accumulated stages.

The invention discloses a fresh air filtering device combining a negative-ion generator with a static electret. The fresh air filtering device comprises the negative-ion generator, a charging and agglomerating air pipe, an air filtering box body, a plate type static electret filter, a bag type static electret filter, a controller and a particle concentration sensor, wherein the negative-ion generator is located in the charging and agglomerating air pipe which is connected to the air filtering box body; the plate type static electret filter and the bag type static electret filter are located inthe air filtering box body; and the controller is separately connected to the negative-ion generator and the particle concentration sensor. According to the fresh air filtering device disclosed by the invention, the particles are charged and agglomerated in the charging and agglomerating air pipe and double static filtration is carried out through the plate type static electret filter and the bagtype static electret filter, so that the particle filtration efficiency is improved effectively, and meanwhile, the filtration resistance is reduced greatly.

The invention relates to an air ring air speed distribution measurement and adjustment device and method of a coal mill. The air ring air speed distribution measurement and adjustment device comprises a plurality of pitot tubes corresponding to air ring openings one by one, a plurality of pressure measuring devices and connection pipes which correspond to the pitot tubes one by one, a plurality of flow guide plates located in an inlet air channel, and adjusting rods corresponding to the flow guide plates one by one, wherein each pitot tube is provided with a measuring head, a static pressure hole and a total pressure hole; each measuring head is located under the corresponding air ring opening and is just opposite to the air direction of an air ring inlet; the total pressure holes and the static pressure holes are connected with the pressure measuring devices by the connection pipes; the flow guide plates are arranged on the adjusting rods; a plurality of pairs of through holes corresponding to the adjusting rods one by one are formed in the wall surface of the inlet air channel; the adjusting rods are sleeved with the through holes; and the two ends of the adjusting rods stretch out of the wall surface of the inlet air channel. According to the air ring air speed distribution measurement and adjustment device, the air ring air speed distribution is measured by the pitot tubes and adjusted by the flow guide plates, and raw coal is prevented from falling from air rings with the low air speed, so that the problem of discharging the raw coal of the coal mill is solved, the utilization rate of the raw coal is improved and the production cost is reduced.

The invention discloses an air guide assembly and an air conditioner, and relates to the technical field of air conditioners. The air guide assembly comprises a shell and a plurality of air guide blades, the shell is provided with first side walls and second side walls adjacent to each other, each first side wall is provided with an air inlet, each second side wall is provided with an air outlet,the plurality of air guide blades are arranged in the air outlet at intervals, the air guide blades are bent towards the direction of the air inlet, and the bending angles of the plurality of air guide blades are gradually increased in the direction away from the air inlet. Compared with the prior art, the air guide assembly provided by the invention adopts the plurality of air guide blades whichare bent and the bending angles are gradually increased in the direction away from the air inlet, so that the air outlet air speed can be uniformly distributed, and the comfort degree of a user is improved.

The invention provides an outdoor unit and an air conditioning system provided with the outdoor unit. The outdoor unit comprises a shell, a fan, a first heat exchanger and a second heat exchanger, wherein a mounting cavity is formed by the shell in an enclosed mode; air inlets are formed in both the first side surface of the shell and the second side surface opposite to the first side surface; airoutlets are formed in the circumferential direction of the shell by taking the perpendicular bisector of the first side surface and the second side surface as the axis; the fan is installed inside the mounting cavity; the first heat exchanger is arranged at the air inlet in the first side surface; and the second heat exchanger is arranged at the air inlet in the second side surface. According tothe outdoor unit and the air conditioning system, hot air in the outdoor unit can be exhausted in time, components are prevented from being burnt out, and the service life of the outdoor unit and theair conditioning system can be prolonged.

The invention discloses an extractor hood. The extractor hood comprises a fan cover and a smoke collecting hood arranged under the fan cover. A centrifugal fan is arranged in the fan cover. The extractor hood is characterized in that the fan cover and the interior of the smoke collecting hood form a T-shaped inner cavity, the centrifugal fan is provided with a left air inlet and a right air inlet,the lower part of the smoke collecting hood forms a wide air inlet, the left and right ends of the wide air inlet are respectively close to the corresponding sides of the smoke collecting hood, and afirst oil filtering plate with a matched shape is arranged at the wide air inlet. The fan cover and the interior of the smoke collecting hood form the T-shaped inner cavity negative pressure expansion area and fit to the centrifugal fan with left and right air inlets and the wide air inlet of the smoke collecting hood so that the negative pressure area distance is increased along a left-right direction and the negative pressure area is increased and thus the negative pressure area actually used by the user can cover the whole kitchen range operation space. An air rate at the air inlet is uniform and the noise is effectively reduced.