65results about How to "Small wind resistance" patented technology

The invention relates to timbers, pharmaceuticals, foods and chemical products, in particular to a heating and blowing device for a large hot air drying room. A plurality of fans (1) are disposed in a rectangular fan support frame (12). Gaps among the fans (1) are blocked by air blocking plates (13). The fans are linked by a synchronization rotation linkage mechanism (2) for synchronous horizontal rotation. The fan support frame (12) is fixed on a rectangular movable frame (17). Rollers (19) embedded into guide rails (18) on two sides are disposed on two sides of the fan support frame (12). An air guide component (4) is disposed on a blowing side of each fan (1). A plurality of radiators (6) corresponding to the fans (1) are disposed at two ends of the guide rails. Three arc flow deflectors (11) are disposed at three inner included angles of the drying room. By the heating and blowing device, power consumption is lowered greatly, operation cost and drying cost are lowered, the drying room is enabled to be efficient, energy-saving and widely applicable, timbers of two or more different kinds or of different thicknesses can be evenly dried simultaneously, production efficiency is increased, and drying operations are highly flexible.

The present invention is a heat sink with guiding fins comprising a base with a plate part, wherein each side of a pair of two opposite sides of the plate part comprises a declining part; and two groups of fins expanded upwardly from each said declining part, wherein a channel whose top width is wider than its bottom width is form by the tow groups of fins and the base and there is a gap properly set between each two fins. By doing so, the heat sink can guide the flow generated by a fan to form a streamline with pressure and so obtains smaller wind resistance and better heat dissipation for the heat sink.

A heat-exchange device comprises a first heat exchanger defining an upper end and a lower end. A second heat exchanger defines an upper end connected to the upper end of the first heat exchanger and a lower end spaced apart from the lower end of the first heat exchanger in a substantially longitudinal direction such that a predetermined angle between the first heat exchanger and second heat exchanger is between about 0 and 180°. A wind-guide member is disposed between the first heat exchanger and second heat exchanger for guiding wind toward the first heat exchanger and second heat exchanger.

The present invention provides a damper device and refrigerator with damper device. The problem the invention object to resolve is that the switching body has elastic deformation due to the driving force (driving torque T) of the damper (the switching body) is closed, as the elastic deformation generate a gap partly between the switching body and the low abutting part arranged at the opening of the frame, The damper of the invention has: a frame (63) having a horizontal broad opening (62); a tabular switching body (64) of the switching opening (62); a driving mechanism (60) driving the switching body around the driving shaft in the length direction of the switching body; a first protuberance (81) provided near the driving shaft central of the switching body and extending in opposite direction of the driving shaft; and a second protuberance (82) provided on a frame on the opposite side of the opening relative to the driving shaft, when the switching body is closed, the first protuberance (81) is contacted to the second protuberance (82) so that the switching body is contacted to the opening edge.

This invention discloses an adjustable guide air supply system of drying chamber. Its feature is that guider air supplier is fixed at uptake of fan, specific change size shell of circle to rectangle is on the supplier, and adjustable diversion hyoplastron is fixed in it. Diversion bent plate is set lateral wall nook of drying chamber top part, smooth and fluent controlled additional air current is formed by it coordinated with guide sir supplier. The utility effect is that the adjustable diversion hyoplastron can adjust velocity, direction and flux of the drying air current to make it accordance with request of drying technique, so drying quality is improved. Smooth and fluent controlled additional air current is formed by diversion bent plate coordinated with guide sir supplier to reduce air supply resistance, improve air supply quality, shorten drying period and improve efficiency. Air supply suspended ceiling, air return suspended ceiling and aluminum separator between fans in existing drying chamber can be removed, so it can decrease the chamber height, saving initial cost. High efficiency environmental protection type fan is used in this invention, so noise pollution can be reduced, electricity consumption can be reduced, and dry cost also can be reduced.

The invention relates to a window opening type wind wheel of a wind driven generator. The wind wheel is mounted on a generator spindle through a spindle and comprises a spindle sleeve, hubs, blades, blade shafts and stopping rods, wherein hubs are fixedly mounted on the outer walls of the two ends of the spindle sleeve in a symmetrical way; the hubs comprise a plurality of coaxial supporting rods which are uniformly arranged in a radial direction; the supporting rods on the two sides are in one-one correspondence with each other; a the blade shaft is axially mounted between each two corresponding supporting rods on the two sides; blades are hinged on the blade shafts; stopping rods for limiting swinging angles of the blades are axially mounted between the corresponding supporting rods on the internal sides of the blade shafts; and windward break angles are made in the blade mounting positions of the supporting rods. The window opening type wind wheel has the advantages of simple structure, high efficiency, low manufacturing cost, convenience in use, convenience for mounting, strong practicability and wide application range; defects of the traditional fixed blade, such as small wind energy stress surface, comparatively large resisting area and low efficiency, are changed; and an efficient wind wheel technology is provided for the wind power generation industry.

The invention discloses an evaporative cooling, nighttime cold radiation, cold storage, ventilation and air conditioning system for a potato warehouse. The system comprises an indirect-direct composite evaporative cooling unit, a cold storage device and a cold radiator which are sequentially connected through a pipe network, the indirect-direct composite evaporative cooling unit is connected with a cold water inlet cold storage tank and further connected with a buried pipeline arranged in the underground of the potato warehouse through an air supply pipe, and the cold storage device is communicated with the top of the potato warehouse through an indoor cooling coil. Evaporative cooling, cold storage, nighttime ventilation and underground buried pipe technology is combined with the potato warehouse, temperature and humidity under different working conditions are adjusted by making full use of natural energy, environmental pollution is decreased, and the energy is saved.

The invention relates to a draft fan including a fan body which is driven by power equipment and comprises a fan shell and an impeller which is arranged in the fan shell and can be driven by the power equipment to rotate along the horizontal axis. An air intake is arranged on one side of the fan shell along the axis and an air outtake is arranged on the fan shell along the direction tangent to the rotation track of the outer edge of the impeller. The fan shell cross section which is vertical to the axis is in the shape of logarithmic spiral, and the rotation track of the outer edge of the impeller is a circle. The longest distance between the circle and the fan shell is 0.7 to 1 time of the radius of the circle, and shortest distance between the circle and the fan shell is 0.1 to 1.1cm. The draft fan reduces the friction between the air and the metal shell and the noise by increasing the distance between the fan shell and the impeller. The increase of the fan cavity size will lead to the increase of the draught flow rate, thus improving the efficiency and achieving the energy saving purpose.

An automatic disinfector for the output and return air of central air conditioner features that the needle-type negative-high voltage ionizing electrodes, positive-voltage advective-adsorption plate electrodes with Ag-carried electric conducting adsorption layer on its both surfaces, and high-voltage plate electrodes for generating electric field are sequentially and alternatively fixed on insulated base, and the disintecting ultraviolet lamp is between two adjacent advective-adsorption plate electrodes. Its advantages are high speed and effect, and low resistance to air.

The invention relates to a plasma sterilization device, a preparation method of sterilization gas and a sterilization method. The plasma sterilization device comprises a gliding arc discharge reactor, a gas flow circulating device and a sealed cavity. The gas flow circulating device comprises a gas inlet end, a gas outlet end and a fan; the gas inlet end and the gas outlet end respectively communicate with the sealed cavity, and the gas flow circulating device hermetically communicates with the sealed cavity through the gas inlet end and the gas outlet end; the gliding arc discharge reactor comprises a power supply and two electrodes; the power supply is connected with the electrodes; the gas outlet end is an insulating high-temperature-resistant pipe or is connected with an insulating high-temperature-resistant pipe, and the electrodes are arranged in the insulating high-temperature-resistant pipe; and plasma sliding arcs are blown out from the electrode area under the action of the gas flow circulating device. The plasma sterilization device is simple in structure; gas in the space circularly flows in the insulating high-temperature-resistant pipe and forms sliding arc discharge for multiple times, so that the sterilization activity and timeliness of plasma gas in the sealed space are improved; and the plasma sterilization device has transient stability and is a green, environment-friendly and residue-free sterilization method.

The invention discloses a uniform-air-supply low-flow-resistance pipeline device and a uniform-air-supply low-flow-resistance pipeline design method. The device comprises a main pipeline, tee joints and branch pipelines. The cross-section height of the main pipeline in the length direction is gradually reduced, so that the uniformity of the air supply amount of each branch pipeline is ensured; andthe surfaces of the connecting parts of inlets and outlets of the tee joints are curved surfaces, and the curved surfaces are circular arc surfaces for reducing flow resistance in the main pipeline.The air supply pipeline device can achieve uniform air supply and has the advantage of the low flow resistance.

The invention discloses a low-leakage airplane ground air conditioner air supply hose. The low-leakage airplane ground air conditioner air supply hose comprises a formed hose body, the formed hose body comprises a plurality of connecting hoses, each connecting hose comprises two inner adhesive tape pieces and two edge covering belts, and the two sides of each inner adhesive tape piece are providedwith a connecting edge strip and a sewing edge strip; the two connecting edge strips are connected with the inner faces of the two inner adhesive tape pieces in an adhering mode to form an inner adhesive tape barrel, a heat preservation layer adhesive tape piece is arranged outside each inner adhesive tape piece, an outer adhesive tape piece is arranged outside each heat preservation layer adhesive tape piece, and the ends of the two sewing edge strips and the ends of the two outer adhesive tape pieces are fixedly connected to the interiors of the two edge covering belts respectively. According to the low-leakage airplane ground air conditioner air supply hose, the joint of the inner adhesive tape cylinder formed by the two inner adhesive tape pieces is welded through hot air or bonded through an adhesive, so that the inner adhesive tape cylinder is not provided with a sewn needle hole, only a small number of sewn needle holes are formed in the zipper parts sewn at the two ends, and the leakage amount of air flowing through the sewn needle holes is effectively reduced.

The invention discloses a subway station air-conditioning system. The subway station air-conditioning system comprises a first air-conditioning system and a second air-conditioning system, wherein thefirst air-conditioning system is responsible for cooling loads at the near end of the station; the second air-conditioning system is responsible for cooling loads at the far end of the station; and the first air-conditioning system and the second air-conditioning system are independent of each other, and the first air-conditioning system and the second air-conditioning system are arranged at thesame end of the station. The air-conditioning systems adopt a single-end arrangement form, and the two sets of independent air-conditioning systems are correspondingly responsible for the cooling loads of near-end and far-end station public areas, so that pipelines are divided, the arrangement of the pipelines is more flexible and simpler, the height of a station layer does not need to be increased, and the equipment maintenance difficulty is reduced; and meanwhile, the first air-conditioning system and the second air-conditioning system are smaller in air supply and exhaust resistance, the distribution power of equipment is obviously reduced, the situation of air volume attenuation does not exist, and the energy-saving effect is remarkable.

The invention provides an elevator air conditioner system arranged at the top of an elevator car. The elevator air conditioner system comprises a condensation cavity and an evaporation cavity, whereinthe condensation cavity is equipped with a compressor, an air exhaust pipe, a condenser, a condensation fan, a throttling device, an evaporation dish, a liquid level switch, a spraying water pump, anozzle, a condenser outlet pipe and other related pipes; the evaporation cavity is equipped with a wind return cover, an evaporator, an condensation fan, a water pan, a wind return port, a wind supplyport, a sealing structure and related pipes; an air exhaust port of the compressor communicates with the inlet of the condenser, the outlet of the condenser communicates with the throttling device through the condenser outlet pipe, the outlet of the throttling device communicates with the inlet of the evaporator, and the outlet of the evaporator communicates with an air return port of the compressor, so as to form a loop; and the wind supply port of an air conditioner directly communicates with a wind inlet port of the elevator car, and then an air-conditioning cabinet directly supplies windinto the elevator car. The elevator air conditioner system provided by the invention is low in air supply resistance, large in windward area, more uniform in wind quantity distribution and higher in sealability; condensate water can be quickly and effectively removed, thereby increasing the refrigerating capacity and the improving the energy efficiency ratio of the air conditioner; and such an effective elevator air conditioner system is provided for an elevator.

The invention discloses an air conditioning structure for rail traffic and the rail traffic. The structure includes an air conditioner body, a first heat exchanger component and a second heat exchanger component, and the first heat exchanger component and the second heat exchanger component are arranged in the air conditioner body. The air conditioner body includes a fairing hood and a bottom plate; the front end of the fairing hood is provided with an air inlet, the rear end of the fairing hood is provided with an air vent, the side face of the fairing hood is provided with a first air outlet, and the bottom plate is provided with a return air inlet and a second air outlet. The first heat exchanger component includes a first heat exchange air duct, the air inlet is communicated with the first air outlet through the first heat exchange air duct, the second heat exchanger component includes second heat exchange air ducts, and the second heat exchange air ducts are communicated with thereturn air outlet and the second air outlet in sequence; the second heat exchange air ducts and the first heat exchange air duct are separated, and a decompression passage is arranged in the air conditioner body and communicated with the first heat exchange air duct and the air vent; in the horizontal direction of a carriage, the second heat exchange air ducts are arranged on the left side and right side of the decompression passage. The air conditioning structure for the rail traffic saves space, air supply resistance can be reduced, and the heat exchange effect is improved.

The invention discloses a porous plate. The porous plate comprises a plate body, the plate body is provided with a plurality of air holes penetrating in the thickness direction of the plate body, each air hole comprises an air inlet section and an air outlet section which are sequentially arranged in the air flow direction, and the diameter of the air outlet section in the airflow direction is gradually increased. In the device operation process, airflow enters into the air inlet sections from the air inlet ends of the air holes and then enters into the air supply sections, and as the air supply section is in the variable-diameter tapered structure, the dynamic pressure of the air flow on the air outlet ends of the air holes is effectively reduced, thus the difference between the front pressure and the back pressure of the porous plate is correspondingly reduced, and meanwhile the air supply resistance is effectively reduced, the air supply efficiency is improved, and the comfort of the air supply process is correspondingly improved. The invention further discloses an air supply device applying the porous plate.

The invention relates to a flexible air pipe winding and unwinding device for air supply. The device comprises an air pipe winding drum assembly, a flexible air pipe, two winding drum seats, a rotary air inlet assembly and a rotary driving assembly for driving the air pipe winding drum assembly to rotate, the air pipe winding drum assembly comprises a winding drum main body, a winding drum air pipe shaft and a winding drum rotating shaft, the rotary air inlet assembly comprises an air inlet pipe, a fixed air pipe and a rotary air pipe rotatably inserted into the fixed air pipe, the air outlet end of the air inlet pipe is connected with the air inlet end of the fixed air pipe, the air outlet end of the rotary air pipe is fixedly connected with the winding drum air pipe shaft, and an output shaft of the rotary driving assembly is fixedly connected with the winding drum rotating shaft. Compared with the prior art, automatic winding and unwinding of the flexible air pipe on the winding drum main body can be achieved, the requirement for movable air supply is effectively met, and the device is safe and reliable in structure and long in service life.