56results about How to "Uniform distribution of wind speed" patented technology

The invention relates to a production technique of a single-head spinned high modulus low-shrink industrial polyester filament. The technique includes the steps: 1. the processing of high-viscosity polyester slices: firstly pre-crystallizing is carried out for the polyester slice and then solid phase polymerization is carried out for polyester slice and then the viscosity of the polyester slice can reach 1.25 to 1.35 dl / g; 2. melt spinning: the polyester slice is transferred to a high-flow spinning screw extrusion machine with screw-diameter of 125 to 160mm, fused mass is extruded out from the spinning screw extrusion machine, then the fused mass is distributed to fused mass branch pipes through a fused mass header pipe, and the fused mass enters a spinning element through a measuring pump and then is extruded out from a spinneret plate with diameter of 220 to 240mm; the extruded filaments are heated by a slow-cooling heating ring, are cooled for forming through an annular air-blowing device and then enter spinning shafts; 3. stretch-wrap forming: the surfaces of filaments are oiled, filaments are stretched at a two-level high speed with total stretching-multiple of 1.8 to 2.2; then the filaments are loosely formed under high temperature between 230 and 260 DEG C and are wrapped with the technique speed of 5200 to 6500 meters / minute to obtain the finished product.

The invention belongs to the field of techniques relevant to air conditioners and discloses a suspended ceiling type air conditioner indoor unit. The suspended ceiling type air conditioner indoor unit comprises an upper installation plate, a middle partition plate assembly and a lower installation plate, wherein the upper installation plate, the middle partition plate assembly and the lower installation plate are arranged in sequence from top to bottom. A draught fan is located between the upper installation plate and the lower installation plate and penetrates through the middle partition plate assembly. At least one air inlet is formed between the upper installation plate and the middle partition plate assembly. At least one air outlet is formed between the lower installation plate and the middle partition plate assembly. A heat exchanger located on the air inlet side of the draught fan is arranged between the air inlet and the air outlet. According to the suspended ceiling type air conditioner indoor unit, the air inlet and the air outlet below the air inlet are formed, and the heat exchanger is arranged at the air inlet so that the air speed on the surface of the heat exchanger can be uniform when the draught fan is used for air suction, and the heat exchange efficiency in unit area is higher. In addition, air from the draught fan can be prevented from being blown onto the heat exchanger, noise is lowered, and kinetic energy loss is reduced.

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.

An integrated window type air conditioner 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 the air conditioner is stepped; the outdoor side part of the air conditioner forms a space structure lower than the indoor side part; the outdoor fan of the air conditioner is a cross-flow fan axially parallel with the chassis; a guide volute for guiding the air to flow is arranged around the outdoor fan; the condenser is arranged at the air inlet of the guide volute and covers the air inlet of the guide volute; a motor fan simultaneously provides power to the indoor fan and the outdoor fan for rotation; and the top of the case on the outdoor side part adopts the roof structure inclining downwards. Expansion of the air inlet and outlet areas of the outdoor fan reduces the noises generated when the outdoor side of the air conditioner operates, and the possibility of mutual interference between the inlet air flow and the outlet air flow is reduced, thus improving the heat exchange capability of the condenser.

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.

The invention discloses an integrated window-type air conditioner. The air conditioner comprises an indoor panel, a cabinet, an evaporator, an indoor fan, a condenser, an outdoor fan, a volute, a compressor and a base plate, wherein the volute comprises a fixed volute and a rotatable volute; the fixed volute forms a cambered surface which semi-encloses the outdoor fan in the cabinet; the rotatable volute is connected to a lower section base plate and rotates by taking a connection position as a rotating shaft; and the lower section base plate is provided with an outdoor vent hole. When the rotatable volute is folded, the outdoor vent hole is enclosed; when the rotatable volute is unfolded, the fixed volute and the rotatable volute form a continuous volute inner surface and heat-exchanged air is guided to flow outwards from the outdoor vent hole. The folded volute occupies a smaller space in the cabinet, so that the overall height of the outdoor side cabinet is reduced and transportation cost is saved. The unfolding degree of the rotatable volute is determined according to the practical indoor condition, so that the air supply volume and air exhaust volume in the cabinet can be adjusted freely according to the practical condition and the running state of the air conditioner is optimized.

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.

Provided are a through-flow fan wherein the wind speed distribution in the direction of a fan shaft at the outlet of an air passage is unified, and separation of airflow is reduced on the suction side of the fan, so that inputs and noise can be reduced, and an air blower and an air conditioner using the through-flow fan. The through-flow fan is provided with a plurality of annular rings which are rotatably disposed within a long transverse air passage and which are provided substantially parallel, and a plurality of blades having an arched section, which are radially provided between the adjacent rings. The angle of warpage of each blade in the ring-side portion of the blade is smaller than that in the center of the blade in the longitudinal direction between the rings.

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 a ventilating slot structure of a generator rotor. The ventilating slot structure of the generator rotor comprises a slot bottom filler strip, a rotor winding, a filler strip under a wedge, a damping winding and a rotor slot wedge, wherein at least one channel forming radial ventilating with a vent hole is axially formed in the rotor winding, any two adjacent copper rows form the channel in the axial direction of the rotor winding, an air inlet in the lower part of the channel is slantly distributed in the direction of cooling air, a ventilating duct with an S-shaped cross section is at least arranged at the upper part of the channel, a plurality of copper wires in the axial direction of the copper rows at the upper part of the channel are distributed in a staggered manner, and any two adjacent copper rows form the S-shaped vent duct in the axial direction of the rotor winding. The air inlet in the lower part of the channel is slantly distributed in the direction of the cooling air, so that the air intake resistance of the air inlet of the channel is effectively reduced, the air intake flow rate of the cooling air entering the channel is increased, the cooling air entering through the air inlet in the lower part of the channel enters the S-shaped vent duct to form turbulent flow, so that the ventilating and cooling effects are greatly improved.

The invention discloses a dehumidifier comprising a casing, a heat exchanger, a water receiving barrel, a blowing fan, a motor and a compressor, wherein the blowing fan is a multi-blade centrifugal fan, an intake air guide plate is arranged between the blowing fan and the heat exchanger, an output air guide plate is formed between the blowing fan and the casing at the back face, and the motor of the blowing fan is installed in the output air guide plate. An air guide structure is additionally arranged in the dehumidifier, and the motor of the fan is arranged at the back, which increases the air intake area of the heat exchanger, decreases the system resistance, and enables the air quantity to be increased, the distribution of the air speed to be uniform, and the highest speed to be minimum, so that the heat exchange of a condenser can be effectively enhanced.

The invention discloses a fin assembly, a heat exchanger and an air conditioner indoor unit. The fin assembly comprises a front fin and a rear fin, the fin assembly is provided with a first wind shielding part, second wind shielding parts and third wind shielding parts, the wind shielding areas of the first wind shielding part, the second wind shielding parts and the third wind shielding parts aredecreased in sequence, and the first wind shielding part is arranged at the connecting position of the front fin and the rear fin; the front fin comprises a first row of wind shielding assemblies anda second row of wind shielding assemblies which are distributed along the wind inlet side to the wind outlet side, the first row of wind shielding assemblies comprises the multiple second wind shielding parts and the multiple third wind shielding parts which are all sequentially distributed in the direction, away from the top of the fin assembly, of the front fin, and the second row of wind shielding assemblies comprises the multiple third wind shielding parts; and / or the rear fin comprises a third row of wind shielding assemblies and a fourth row of wind shielding assemblies, the third row of wind shielding assemblies and the fourth row of wind shielding assemblies are distributed along the air inlet side of the rear fin to the air outlet side of the rear fin, the third row of wind shielding assemblies comprises the multiple second wind shielding parts and the multiple third wind shielding parts which are sequentially distributed in the direction, away from the top of the fin assembly, of the rear fin, and the fourth row of wind shielding assemblies comprises the multiple third wind shielding parts. According to the fin assembly, the structure of the fin assembly is improved, sothat wind speed distribution of the fin assembly is more uniform.

The invention discloses a wall-mounted indoor unit and an air conditioner. The wall-mounted indoor unit comprises a housing and a single-row heat exchanger, and the housing is provided with an air inlet, an air outlet and a heat exchanging air duct used for communicating the air inlet and the air outlet; the single-row heat exchanger is installed in the heat exchanging air duct, the single-row heat exchanger has V-shaped arrangement and comprises a front heat exchanger and a rear heat exchanger, the front heat exchanger comprises a front fin, the rear heat exchanger comprises a rear fin, multiple first wind blocking structures are distributed on the front fin and the rear fin in the length directions of the front fin and the rear fin at intervals, a second wind blocking structure is arranged at the connecting position of the front fin and the rear fin, and the second wind blocking structure is located between the first wind blocking structures arranged at the upper ends of the front fin and the rear fin. By means of the wall-mounted indoor unit, the wind speed difference of different parts of the single-row heat exchanger is reduced, so that the heat exchanging efficiency of the single-row heat exchanger is improved.

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.