48results about How to "Adjust the wind speed" patented technology

The invention discloses a novel electric fan which comprises blades, a base, a supporting rod, a drive device and a control device. The blades are arranged on a rotation shaft of the drive device and driven by the drive device, the drive device is electrically connected with the control device, and the blades and the drive device are supported by the base and the supporting rod. The electric fan further comprises an operating panel for controlling the working state of the electric fan, wherein the operating panel is arranged at the middle-upper portion of the supporting rod and inclines at a certain angle formed by the operating panel and a horizontal plane so as to face a user. The operating panel of the electric fan is arranged at the middle-upper portion of the supporting rod to facilitate electric fan operation conducted by the old and children, and the operating panel inclines at the certain angle formed by the operating panel and the horizontal plane so as to face the user, so that the user does not need to stoop down to control the operating panel. The novel electric fan is humanized and conforms to ergonomics.

The invention provides a fume cupboard for a laboratory. The fume cupboard comprises a cupboard body, a cupboard door and a control mechanism. A fan, a filter net, a flow distribution pipe, a first air guide pipe and a second air guide pipe are installed in the cupboard body. An operation room, an air inlet channel and a filter cavity are formed in the cupboard body. The cupboard door is provided with a first observation window. The bottom of the cupboard door is provided with a first air outlet channel, and the top of the cupboard body is provided with a second air outlet channel. An air outlet of the flow distribution pipe is communicated with the first air outlet channel through the first air guide pipe and communicated with the second air outlet channel through the second air guide pipe. A flow distribution valve is installed in the flow distribution pipe in a rotatable mode. The control mechanism comprises a control device, an infrared sensing device and a driving device. The driving device is in driving connection with the cupboard door. The control device is in communication connection with the infrared sensing device, the driving device and the fan. According to the fume cupboard for the laboratory, harmful gas can be effectively prevented from being inhaled by the human body, experimental operation is convenient, operation objects are almost not affected by the wind speed in the experiment process, and meanwhile energy can be saved.

The invention discloses a fabric drying equipment for textile production, which comprises a main body, a lifting motor is fixedly installed in the middle of the bottom end of the main body, a threaded shaft is installed on the upper end of the lifting motor, and a threaded shaft is sleeved on the outer surface of the threaded shaft. Lifting plate, the upper surface of the lifting plate is penetrated with a limiting hole, the inner bottom of the main body is fixedly installed with a limiting rod near the outside of the lifting motor, the upper end of the limiting rod is fixed with a baffle plate, and the upper surface of the lifting plate is close to Push rods are fixedly installed at the corner positions, and a placement plate is fixedly installed on the upper end of the push rod, and a heating plate is arranged directly above the placement board. The cloth drying equipment can prevent the cloth from being damaged or the drying time is slow due to excessively high or low heat and wind speed. Dry unevenly, play a very good limit effect.

The invention belongs to a generation device for a polyacrylonitrile-based carbon fiber and particularly relates to a sizing, drying and shaping device for the polyacrylonitrile-based carbon fiber. The sizing, drying and shaping device comprises a sizing device for sizing a carbon fiber, a drying device for the sized carbon fiber as well as a shaping device for shaping the dried carbon fiber, wherein the sizing device comprises a sizing groove for accommodating slurry; a circulating pipeline is arranged on the outer side of the sizing groove; one end of the circulating pipeline is connected with the bottom of the sizing groove; the other end of the circulating pipeline is connected with the upper edge of the sizing groove; a circulating pump is arranged on the circulating pipeline; a guiding roller which is partially immersed in the slurry and an immersing roller which is completely immersed in the slurry are arranged in the sizing groove; a reflowing plate which is arranged in an extending manner is arranged on the outlet edge of the sizing groove; and an air purge device is fixedly arranged above the reflowing plate. According to the sizing, drying and shaping device disclosed by the invention, the sizing is uniform, the shape of tows is good; the pollution of air to the carbon fiber is reduced in the sizing and drying; and meanwhile, the work environment is improved and the work comfortableness of workers is improved.

The invention provides an ion wind cooling device, which is characterized in that it includes an insulating housing and an ion wind generator, the housing is composed of a bottom surface and several slide rails vertically connected to the bottom surface, the ion wind The emitter of the wind generator is fixed on the free end of the slide rail and is arranged opposite to the bottom surface of the housing, the emitter is connected to the positive or negative pole of the power supply, and several sliders are arranged on the circumferential edge of the receiving pole of the ion wind generator , the slider is installed on the slide rail, the receiving pole is electrically connected to the ground wire, an insulating heat-conducting substrate is fixed on the back of the receiving pole, the heat-conducting substrate is fixed on the bottom surface of the housing, and the surface of the receiving pole is also Coated with an ozone filter coating. The structure design of the present invention enables the ion wind generator to have triple functions of generating ion wind, effectively conducting heat, and removing ozone generated during the ionization process. The distance between the receiving pole and the emitter of the ion wind generator can also be adjusted to adjust the wind speed of the ion wind.

The invention relates to a door plate which comprises a body and a door lock protecting box, wherein the body is matched with a doorframe, and the door lock protecting box is used for mounting and protecting a door lock. A plurality of ventilation holes are arranged on the body, and a first air induction baffle and a second air induction baffle which are vertically and bilaterally staggered are arranged on the ventilation holes. The ventilation holes arranged on the body are used for achieving ventilation in a sealed space, and the first air induction baffle and the second air induction baffle which are vertically and bilaterally staggered on the ventilation holes are used for appropriately adjusting air directions and air speed.

The invention discloses ventilation equipment with an air supplementing channel and using method thereof in the technical field of ventilation equipment. The ventilation equipment comprises a ventilation box, a fixed shaft is arranged in the center of the right end face of an upper panel of the ventilation box, upper cover plates are movably connected to the front side and the rear side of the fixed shaft, and hinges are arranged on the lower end faces of the upper cover plates; a lower cover plate is fixedly connected to the other ends of the hinges, the lower end face of the lower cover plate is flush with a lower side panel of the ventilation box, an exhaust frame is arranged on the right side of the center of an inner cavity of the ventilation box, an exhaust plate is fixedly connectedto the right side of the outer ring of the exhaust frame, and the outer ring of the exhaust plate is fixedly connected to the right side of the inner wall of the inner cavity of the ventilation box;the left side of the outer ring of the air exhaust frame is fixedly connected with an air baffle, the outer ring of the air baffle is fixedly connected with the middle of the inner wall of the inner cavity of the ventilation box, and the upper end and the lower end of the middle of the inner cavity of the air exhaust frame are both fixedly connected with connecting rods.The device has the advantages of simple structure and convenient operation, and can effectively supplement the air in the air supplementing channel into the cavity of the ventilation box to improve the air quality inside the space.

The invention relates to a production and processing method of medical melt-blown non-woven fabric, which comprises a bottom plate, a support frame and a melt-blown device. The top of the bottom plate is symmetrically installed with a support frame, and a melt-blown device is installed between the upper ends of the support frames. The present invention can solve the problem that the existing equipment cannot effectively adjust the wind speed during melt-blowing, and cannot effectively spread the hot air evenly during the melt-blowing process, resulting in The uneven distribution of fiber thickness after melt-blowing affects the subsequent use of non-woven fabrics. At the same time, when the existing equipment is processing melt-blown non-woven fabrics, it is usually not able to effectively and uniformly mix the molten polymer quickly, resulting in The polymer after meltblown is prone to delamination, which affects the quality and effect of non-woven fabrics.