5results about How to "Uniform wind speed" patented technology

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.

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 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.

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 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.