22results about How to "Uniform wind speed" patented technology

The utility model relates to a positive pressure and negative pressure combined precise ventilation hog house, which comprises a hog house body, a suspended ceiling is arranged in the hog house body, the internal space of the hog house body is divided into an upper ventilation area and a lower breeding area by the suspended ceiling, a plurality of ceiling windows are arranged on the suspended ceiling, and the suspended ceiling is connected with the hog house body. The ceiling window is communicated with the ventilation area and the breeding area. The utility model provides a ventilation system with combined use of positive and negative pressure fans, which not only can reduce the temperature in a pig house in a large area and remove dust, but also can enable fresh air to be accurately and uniformly blown away on the body surfaces of pigs, so that the air quality in the pig house is kept at a better level, and the ventilation quantity and the energy consumption are reduced while the effective wind speed is not reduced. The wind speed, the pressure and the temperature in the pig house are distributed more uniformly, and the phenomenon of heat accumulation or local supercooling of a traditional pig house is avoided.

The ventilation system comprises a hog house body, a suspended ceiling is arranged in the hog house body, the internal space of the hog house body is divided into an upper ventilation area and a lower breeding area by the suspended ceiling, a plurality of nose pipes are arranged on the suspended ceiling, and the nose pipes are communicated with the hog house body. The nasal tube is communicated with the ventilation area and the cultivation area; a first wall surface and a second wall surface are sequentially arranged on each of the two sides of the hog house body from inside to outside, a water curtain is arranged on each first wall surface, a plurality of positive pressure fans are arranged on each second wall surface, and the positive pressure fans are located in a ventilation area; a plurality of air blocking assemblies are arranged at the top end of the interior of the hog house body and are sequentially arranged in the air outlet direction of the positive pressure fan. The ventilation device is reasonable in structure, it can be guaranteed that fresh air is evenly blown to each pig, the temperature of the body surface of the pig is comfortable, and the area of a ventilation dead zone is greatly reduced.

This invention belongs to the field of spinning technology and relates to a coarse denier, low-pore polyester medium-oriented yarn and its production method. The production method involves extruding the melt from the spinneret's orifices, then sequentially passing through a windless zone, a transition zone, and a side-blown cooling zone. The windless zone and transition zone are the upper and lower sections of the same cylindrical component, respectively. Different spinnerets correspond to different cylindrical components, and the cylindrical components do not directly contact the spinnerets. The upper section of the cylindrical component has no through holes in its wall; the lower section has through holes on its wall to guide ambient air into the interior of the cylindrical component and prevent turbulence inside. The length of the windless zone is 5-6 cm, and the length of the transition zone is 6-10 cm. The percentage difference in wind speed between the side-blown cooling zones is no higher than 10%, where the percentage difference is calculated as (maximum wind speed - minimum wind speed) / maximum wind speed × 100%. This production method achieves uniform cooling of the inner and outer layers, resulting in coarse denier, low-pore polyester medium-oriented yarn with advantages such as high breaking elongation.

A device for uniformly baking a photoresist film on the surface of a large-caliber substrate, the device mainly includes a baking system, a substrate loading and unloading system and a control system. The baking system is mainly composed of a circulating fan, a heating element, a high-efficiency filter, a baking chamber, a chamber sealing ring, a wind guide plate, an air inlet port, a return air port and a circulating air duct, a gas input port and an exhaust port. It has a cleanliness level of 100, a temperature control range of 20°C to 200°C, a chamber temperature uniformity better than ±3°C, and a temperature accuracy of ±0.5°C. The substrate loading and unloading system includes a transfer trolley and a substrate lifting device. The transfer trolley has a function of adjusting the substrate tilt at a small angle, and a guide plate is provided on the side close to the substrate near the air inlet end, which can ensure that the large-caliber sample is safely baked up and down the chamber station, and can also optimize the film baking process. The device of the present invention can realize the photoresist film baking process of a two-way meter-level size and ultra-thick substrate, and further improve its film thickness uniformity on the basis of the uniformity of the photoresist film thickness after coating.

The present invention discloses an air-distributing heat exchanger and an air conditioner, belonging to the technical field of air conditioning heat exchange. The air-distributing heat exchanger comprises an air-distributing orifice plate and a plurality of single-row heat exchangers, wherein the plurality of single-row heat exchangers are arranged in parallel at a set interval, and an air-distributing orifice plate is arranged between each two adjacent single-row heat exchangers; and a plurality of air-distributing holes are provided on the air-distributing orifice plate. The present invention can solve the problem of reduced heat exchange performance of the heat exchanger due to uneven wind speed in a fin-tube heat exchanger, and through the joint action of the gap space formed between each single-row heat exchanger and the air-distributing orifice plate, each part of the heat exchanger has a uniform wind speed, thereby significantly improving the efficiency of the heat exchanger and significantly improving the performance of the air conditioning unit.

The utility model provides an automobile air conditioner outlet pipe which comprises an air conditioner outlet pipe body, and the two ends of the air conditioner outlet pipe body are detachably connected with a first filtering assembly and a second filtering assembly respectively. The first filtering assembly comprises a mounting cylinder and a connecting cylinder, the mounting cylinder and the connecting cylinder are slidably arranged at one end of the air conditioner outlet pipe body, one end of the connecting cylinder is fixedly connected with one end of the mounting cylinder, filtering pieces are arranged at the ends, away from each other, of the mounting cylinder and the connecting cylinder, and two spiral grooves formed in the same direction are formed in the inner wall of the connecting cylinder. According to the automobile air conditioner outlet pipe, a double-layer filtering detachable structure is adopted, airflow can be guided to rotate and flow in the axial direction, the radial speed component is reduced, vortex formation is restrained, the air speed of an air outlet is more uniform, energy consumption is reduced, a turbulent noise source can be eliminated when vortex formation is restrained, and noise of the air outlet of an air conditioner in an automobile is lowered.

The in-situ environment simulation wet-bulb temperature calibration device of the present invention is characterized by comprising a shell, a rectangular annular circulation air duct installed in the shell, and an inner shell installed in the central gap of the annular air duct; the calibration device also includes a drying device, a humidifying device, a sensor device, an air circulation device with adjustable wind speed, a constant temperature device and a controller. The present invention also provides a humidity calibration method for an in-situ environment simulation wet-bulb temperature calibration device. The present invention can realize the simultaneous control of wind speed, temperature and humidity in the device. The wind guide plate and the rectifier plate are optimized to ensure the uniformity of wind speed in the measurement area of ​​the device. In this patent scheme, in order to improve the efficiency of humidity control, an optimization algorithm is used to output the required dry / wet gas. The calibration device is efficient and simple to operate. The calibration time is effectively shortened by the optimization algorithm. The measurement results are further verified by simulating the actual use environment, and it can be intuitively judged whether the calibrated wet-bulb platinum resistance is accurate and reliable.

The present application relates to the technical field of air purifiers, and specifically provides a wind channel assembly, an air purifier and a wind channel assembly control method.The wind channel assembly comprises a centrifugal fan, a first shell and a flow guide piece;the centrifugal fan is provided in multiple parallel and sequential intervals;the first shell is arranged outside the centrifugal fan and is connected to the centrifugal fan;the first shell is provided with multiple wind channels corresponding to the centrifugal fan in one-to-one correspondence;the wind channel comprises a first air inlet and multiple first air outlets;the first air inlet is used for introducing airflow filtered by a target filter with a target resistance into the wind channel;the multiple first air outlets are arranged on the outer periphery of the centrifugal fan;the flow guide piece is arranged in the first shell and is connected to the first shell;the flow guide piece is arranged between two adjacent centrifugal fans to separate the wind channels;the flow guide piece is provided with flow guide concave arc surfaces on both sides, and the flow guide concave arc surfaces are configured to guide the airflow of a target fan to the first air outlet. The present application can provide large airflow while taking into account low noise and energy consumption.

The utility model provides a constant-speed lateral blowing device for moisture-absorbing and quick-drying chinlon 6, which comprises an air duct and a large air bin arranged at the tail end of the air duct, an adjusting plate and a filter screen transversely arranged above the adjusting plate are arranged in the air duct, a wind direction plate is obliquely arranged in the large air bin, and a wind outlet is formed in the wind direction plate. The side air blowing net is vertically arranged at an air outlet of the large air bin, a plurality of partition plates perpendicular to the side air blowing net are arranged in the large air bin, the partition plates divide the large air bin into a plurality of small air bins, and an air volume adjusting valve is arranged at the lower end of each small air bin and used for controlling the air volume in the corresponding small air bin. An air speed sensor is arranged on the lowermost layer of the side air blowing net in each small air bin, and each air volume adjusting valve and each air speed sensor are connected with a controller. The device is simple in structure, convenient to operate and capable of enabling the speed of air passing through the cross air blowing net to be uniform, enabling the evenness of each spindle of silk to be uniform, and enabling the product quality to be more stable.

The utility model discloses an air duct structure of a drying area of a sheet baking machine, which comprises a cavity, a left hot air inlet and a right hot air inlet are formed on the left side and the right side of the cavity, and a left inclined plate and a right inclined plate which are in one-to-one correspondence are arranged right opposite to the left hot air inlet and the right hot air inlet. The left inclined plate and the right inclined plate are respectively provided with a plurality of ventilation holes, the upper end of the left inclined plate is connected with the right end of a left supporting plate, the upper end of the right inclined plate is connected with the left end of a right supporting plate, and a left flow channel is defined by the left supporting plate, the left inclined plate and the inner wall of the corresponding cavity. A right flow channel is defined by the right supporting plate, the right inclined plate and the inner wall of the corresponding cavity, the left supporting plate is arranged to enable the air speed and pressure of hot air entering from the left hot air inlet to be balanced in the left flow channel, and the right supporting plate is arranged to enable the air speed and pressure of hot air entering from the right hot air inlet to be balanced in the right flow channel. The defects that in the prior art, convection wind generates vortexes and is unstable, and turbulent flow is likely to be generated are overcome.

The utility model discloses a negative pressure dust suction device for the surface of a pole piece, which comprises a dust removal cylinder body, a dust suction port is arranged on one side of the dust removal cylinder body close to the pole piece, and a rotatable brush is arranged in the dust removal cylinder body; the negative pressure cavity is arranged below the dust removal barrel and is communicated with the dust removal barrel; a main exhaust inlet is formed in one end of the negative pressure cavity; the negative pressure cavity is of a reducing structure, and the farther the negative pressure cavity is away from the main exhaust inlet, the smaller the section of the cavity is. The negative pressure cavity is of a reducing structure, the farther the negative pressure cavity is away from the air suction opening, the smaller the section of the cavity is, and the air speed of the whole cavity is uniform. The auxiliary air suction opening is additionally arranged on the lower portion of the negative pressure cavity, when the negative pressure cavity is too long, the air speed of the end, away from the main air suction opening, of the negative pressure cavity can be increased, the auxiliary air suction opening inclines towards the main air suction opening, and energy loss caused by mutual interference of suction force generated by the main air suction opening and the negative air suction opening is avoided as much as possible.

The invention discloses an ultrahigh material layer production device and method based on sintering unequal-thickness bedding. The ultrahigh material layer production device comprises a first sintering bedding bin, a second sintering bedding bin, a material distributing hopper, a sintering trolley and a material pressing assembly, and multiple sets of bar screens are arranged below the first sintering bedding bin at equal intervals; the distributing hopper is arranged below a blanking point of the first sintering grate-layer bin, the interior of the first sintering grate-layer bin is communicated with the second sintering grate-layer bin through a chute, the distributing hopper and the second sintering grate-layer bin are longitudinally distributed in the running direction of the sintering trolley, and the second sintering grate-layer bin is correspondingly arranged above the middle of the trolley. The material distributing hopper is arranged above the second sintering grate-layer bin in the longitudinal direction, two sets of discharging pipes are arranged at the bottom of the material distributing hopper, and the material pressing assembly is arranged in the sintering trolley before entering the ignition furnace and comprises a material scraping plate, a first material pressing plate and a second material pressing plate which are sequentially arranged. The method has the advantage that the ultra-thick material layer can be sintered in 330m < 2 >.

The invention relates to the technical field of drying structures, and discloses an efficient circuit ink drying device which comprises a drying oven and a placing mechanism, multiple sets of sliding rods are arranged on the two sides in the drying oven, sliding grooves are formed in the sliding rods, the placing mechanism comprises a supporting plate and a sliding plate, the supporting plate comprises multiple limiting parts and multiple object placing parts, and the limiting parts and the object placing parts are arranged at intervals. A ventilation opening is formed in the storage part, a moving channel is arranged in the limiting part and connected with the ventilation opening, a moving opening is formed in one side of the supporting plate and communicated with the ventilation opening and the moving channel, the sliding plate is arranged in the moving channel and penetrates out of the moving opening, and the caliber of the ventilation opening is increased or decreased by moving the sliding plate between the moving channel and the ventilation opening. By arranging the placing mechanism, the upper surface and the lower surface of the circuit board can be heated, and the uniform drying effect is improved; and through the arrangement of the air uniformizing mechanism, the air speed can be more uniform, the situation that hot air directly blows the local part to cause non-uniform drying of printing ink is reduced, and the quality of the circuit board is improved.

This invention discloses an immersion and purging device for zeolite modules, comprising an immersion tank and a blower mechanism. The immersion tank contains an immersion solution for immersing the zeolite modules, and a placement rack is provided on the immersion tank for placing the zeolite modules to be purged. An air outlet hood is provided at the air outlet end of the blower mechanism, correspondingly covering the placement rack and abutting the zeolite modules on the placement rack, allowing the air from the blower mechanism to completely penetrate the inner structure of the zeolite modules. Multiple immersion tanks are arranged in a row, and the placement rack is mounted on a movable support, which can move the placement rack to each immersion tank. The air outlet hood is separately connected to the blower mechanism and is rotatably mounted on the movable support. When the air outlet hood is flipped up, it exposes the placement rack; when the air outlet hood is flipped down, it abuts the zeolite modules on the placement rack. This invention enables the air from the blower mechanism to completely act on the zeolite modules to be purged, reducing the purging time.

The present invention discloses a resistor band unit and a fan-shaped resistor band structure, belonging to the technical field of brake resistors, comprising a resistor band unit formed by bending a unit body at each group of insulating block fixing holes and bending directions of adjacent groups of insulating block fixing holes are opposite, and also proposes a fan-shaped resistor band structure, which is formed by resistance welding of a plurality of resistor band units through connecting sections; by optimizing the structure of the fan-shaped resistor band and controlling the bending radius and bending angle of the bending part in each resistor band unit, the fan-shaped resistor band can maintain structural continuity and make the sparseness of the resistor band in a radial large radius area similar to that in a radial small radius area, thereby achieving the effect of balanced resistance in a ventilation area within the fan-shaped resistor band, making the wind speed in the ventilation area relatively uniform, and improving the heat dissipation uniformity of the fan-shaped resistor band.

This invention belongs to the technical field of thin film drying equipment, and relates to a thin film drying device and method. The thin film drying device includes a substrate conveying assembly and an air-knife film drying assembly. The substrate conveying assembly conveys the substrate, and the air-knife film drying assembly dries the wet film on the substrate surface. The air-knife film drying assembly includes an inlet / outlet section, a control section, an air outlet section, an air velocity sensing system, and an air velocity control system. The control section has a control duct and multiple control components. Each control component includes an air valve and a drive component. The air valve is disposed within the control duct, and the drive component controls the rotation of the air valve to adjust the airflow angle and air velocity at the inlet / outlet. The air velocity sensing system and the air velocity control system are interconnected to monitor the air velocity at the air outlet. The air velocity control system controls the control components based on the monitoring signal from the air velocity sensing system to adjust the rotation angle of the air valve within the control duct. This invention reduces the impact of airflow on wet film formation, reduces film formation defects, and improves film quality.

The present invention provides a high-precision constant temperature and humidity microelectronics Class 100 clean laboratory automatic control system, including: fresh air clean air conditioning control system, FFU air volume and floor return air volume control system, CO2 comfort exhaust and supply air indoor positive pressure control system, cold and hot radiation panel flow control system, air conditioning water circulation control system, lighting system and central control system. The high-precision constant temperature and humidity microelectronics Class 100 clean laboratory automatic control system is reasonably designed, and can achieve precise control of the constant temperature and humidity and uniform wind speed environment in the microelectronics laboratory, ensure the Class 100 cleanliness of the air in the microelectronics laboratory and low concentration of chemical pollution gas, and reduce the interference factor in the microelectronic chip component experimental sample manufacturing process.

The invention relates to a fender maintenance cover and a motorcycle, the fender maintenance cover comprises a top edge, a bottom edge, a first side edge and a second side edge, and the top edge, the first side edge, the bottom edge and the second side edge jointly define an air inlet; the air inlet comprises a middle air inlet area, a first side air inlet area, a second side air inlet area and a bottom air inlet area; first grid strips are arranged in the middle air inlet area and extend in the horizontal direction; the first side air inlet area is provided with a second grating strip, and the second grating strip is parallel to the second side edge; the second side air inlet area is provided with a third grating strip, and the third grating strip is parallel to the second side edge; the bottom air inlet area is provided with fourth grid strips, and the fourth grid strips are obliquely arranged in the direction from the air inlet side to the air outlet side of the fender maintenance cover and gradually close to the bottom edge. The fender maintenance cover can improve the air inlet amount and the air inlet uniformity of the radiator.

The utility model discloses a wind field diversion structure of additive manufacturing equipment, which comprises plasma discharge support columns, a honeycomb-shaped diversion plate, a fixing rod and a discharge guide head, and the plasma discharge support columns comprise a first plasma discharge support column and a second plasma discharge support column. The honeycomb-shaped flow guide plate is longitudinally distributed, the two sides of the honeycomb-shaped flow guide plate are fixed to the base through the first plasma discharge supporting columns, the two fixing rods are transversely arranged in parallel, the two ends of the fixing rods are fixed to the base through the second plasma discharge supporting columns, and the discharge guide head is of a transversely-distributed Y-shaped structure. The discharge guide head is arranged towards the honeycomb-shaped guide plate, and the two branches of the fixed side are fixed to the two fixed rods respectively. According to the utility model, the occupied space is small, the formed air flow stably runs in the cavity, the air speed is uniform, and the probability that smoke dust stops laser from reaching a sintering section is reduced, so that the printing quality and the printing stability of a workpiece to be printed are improved.

The utility model belongs to the technical field of natural gas heating furnace waste heat utilization, and particularly relates to a natural gas heating furnace waste heat recycling device which comprises a natural gas heating furnace body, a furnace body waste heat recycling assembly is arranged on the outer wall of the natural gas heating furnace body, and a smoke direction adjusting assembly is installed at the top of the natural gas heating furnace body. A heating furnace smoke recycling assembly is arranged at the end of the smoke direction adjusting assembly, and the furnace body waste heat recycling assembly comprises a water inlet pipeline, a water inlet valve, a water flow circulation pipeline, a water pipe outer wall, a heat insulation layer, a heating layer, a water outlet pipeline and a water outlet valve. The end part of the water inlet pipeline is communicated with a water flow circulation pipeline; the waste heat recycling device can recycle heat on the outer wall of the natural gas heating furnace and heat in exhausted smoke at the same time, and the utilization efficiency of waste heat of the natural gas heating furnace can be improved conveniently.

The invention provides an air outlet panel, an air outlet assembly and an air conditioner, the air outlet panel comprises a panel body and a flow guide ring pipe connected with the panel body, an air outlet is formed in the panel body in a penetrating mode, and an air outlet grille is arranged at the air outlet end of the air outlet; the flow guide ring pipe protrudes and extends towards the fan blades from the air inlet end, close to the fan blades, of the air outlet in the axial direction of the air outlet, the flow guide ring pipe and the air outlet are correspondingly communicated, an annular surrounding plate is arranged on the end face, close to the flow guide ring pipe, of the panel body in a protruding mode and arranged on the periphery of the flow guide ring pipe in a surrounding mode, and a noise reduction cavity can be formed between the annular surrounding plate and the flow guide ring pipe. A plurality of silencing holes communicating with the silencing cavity are formed in the pipe wall of the flow guide ring pipe in a penetrating mode and distributed in the circumferential direction of the flow guide ring pipe. According to the air outlet panel, noise generated by impact of high-speed air outlet airflow on the air outlet panel can be effectively reduced, the overall noise reduction effect of the air outlet panel is better, and therefore the use experience of a user is improved.

The pet drying box comprises a box body, a containing cavity and an air inlet cavity are formed in the box body, air inlet strip seams are formed in the left side wall and the right side wall of the containing cavity, and the air inlet cavity comprises a first cavity body located on the rear side of the containing cavity and second cavity bodies located on the left side and the right side of the containing cavity; the second cavity communicates with the air inlet strip seam, and the air inlet strip seam is arranged in the first direction. The hot air assembly is arranged on the box body and can heat air in the first cavity and input the air into the second cavity; the wind power distribution structure is arranged in the second cavity and arranged in the first direction. According to the pet hair dryer, the air distribution structure can uniformly distribute the hot air flow to each part of the air inlet strip seam, so that the air speed at each part of the air inlet strip seam is relatively uniform, the pet hair can be uniformly dried, and the pet hair drying effect is optimized.