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

The invention discloses a near-wall air device for preventing the high-temperature corrosion of the water-cooled wall of a power station boiler, which comprises an air duct, a regulating valve, a near-wall air box, near-wall air unit nozzles, a fuel component on-line monitor and a speed measuring device, wherein the direction of the near-wall air is parallel to the axis of a pipe of the water-cooled wall, the resistance along the course is small and the air speed reduction is slow; only one layer of near-wall air nozzles is required to be arranged in a burner area and the system structure is simple; and the nozzles are flexibly arranged, the nozzle cooling condition is good, the operational air volume is small and the stability is high. Thus, the device is suitable to be promoted for preventing the high-pressure corrosion of the water-cooled walls of power station boilers.

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 ionic wind radiating device, which is characterized by comprising an insulated shell body and an ionic wind generator, wherein the shell body is composed of a bottom surface and a plurality of sliding rails in vertical connection with the bottom surface; an emitter of the ionic wind generator is fixed to free ends of the sliding rails, and is opposite to the bottom surface of the shell body; the emitter is connected with a positive electrode or a negative electrode of a power supply; the peripheral edge of a receiver of the ionic wind generator is provided with a plurality of sliding blocks, and the sliding blocks are installed on the sliding rails; the receiver is electrically connected with a ground wire, and an insulated thermal conducting substrate is fixed to the back surface of the receiver; the thermal conducting substrate is fixed to the bottom surface of the shell body and is fixedly connected with the bottom surface; and the surface of the receiver is coated with an ozone filtering coating. Through the structural design, the ionic wind generator has three functions of generating an ionic wind, effectively conducting heat and removing ozone generated in the ionization process. The ionic wind radiating device can adjust the distance between the receiver and the emitter of the ionic wind generator, so as to adjust wind speed of the ionic wind.

The invention discloses a positive-pressure direct-firing pulverizing system based on segmented temperature control and a control method of the positive-pressure direct-firing pulverizing system. The positive-pressure direct-firing pulverizing system comprises an air preheater, an air feeder, a primary air fan, a seal air fan, a coal mill, a tailing separator, a raw coal hopper, a coal feeder, a pulverized coal distributor, an isolation door, a pulverized coal feeding system adjustment bellows, a pulverized coal burner and a secondary bellows. According to the control method, an inlet and an outlet of the coal mill are taken as a segment, an inlet and an outlet of a pulverized coal feeding system are taken as another segment, cold air and hot air are fed into the corresponding inlets of the two segments through corresponding pipelines, the temperatures of the two segments are monitored respectively, and then segmented control over the temperature of the pulverizing system is achieved. By means of the control method, the temperature of the pulverizing system and the temperature of the pulverized coal feeding system can be independently controlled, the air speed of the pulverized coal feeding system is kept not decreased under the condition that the air quantity of the pulverizing system is changed, and the demands for conveying pulverized coal and preventing a nozzle from being burnt out are met.

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 total-heat fresh air exchange equipment with an isothermal or temperature-rise dehumidification function. The total-heat fresh air exchange equipment comprises an outdoor unitand an indoor unit which are connected by a copper pipe, and is characterized in that the outdoor unit is internally provided a compressor, a four-way valve, an outdoor fan, an outdoor condenser and an outdoor electronic expansion valve, the indoor unit is internally provided with a reheat condenser, an indoor evaporator, an indoor fan, a one-way valve, a dehumidification throttling device, a solenoid valve, a stop valve, an exhaust fan, a total-heat exchange core, an air filter net and a controller, an exhaust air outlet, a fresh air inlet and fresh air outlets are formed in cases on the leftside and the right side of the indoor unit correspondingly, and an exhaust air inlet and a circulating air inlet are formed in a case on the front side of the indoor unit. The temperature of a refrigerant outlet of the outdoor condenser is controlled by the controller to control the heat dissipation ratio of the outdoor condenser and the indoor reheat condenser, so that the temperature of indooroutlet air is controlled to be higher than or equal to the temperature of return air, an isothermal or temperature-rise effect is achieved, and a living environment with the suitable temperature and humidity is provided.

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 discloses an output amplification stage temperature-controlled intelligent exhaust system, which is characterized in that it includes a power supply module, a temperature sensor U1, a fan M, a field effect tube Q4, a field effect tube Q5, and a front-end processing unit connected to the temperature sensor U1 Circuit, the capacitor C8 connected in series between the gate and drain of the field effect transistor Q4, the resistor R10 connected in parallel with the capacitor C8, the positive electrode is connected to the source of the field effect transistor Q4, and the negative electrode is connected to the GND pin of the temperature sensor U1 Connected polarity capacitor C7 and so on. The invention can automatically adjust the wind speed of the fan according to the temperature in the workshop, so as to intelligently cool down the temperature in the workshop, has a simple structure, high intelligence, and is suitable for wide use. The invention has the function of overvoltage protection to avoid damage to the system caused by high voltage.

The invention relates to a process for recycling waste concrete aggregate and a cementing material and belongs to the technical field of concrete waste. The process includes: 1), separating through anexternal-circulation vertical mill: adopting the external-circulation vertical mill to process waste concrete to realize separation of aggregate and cement hydrate; 2), performing combined separatingpowder selection: adopting a static powder selector and a dynamic powder selector for separating powder selection, using the static powder selector to separate coarse aggregate and powder after goingthrough the external-circulation vertical mill, and using the dynamic powder selector to separate coarse powder and fine powder; 3), using an eccentric vibromill to correct circularity of aggregate selected out by the static powder selection and to further remove the cementing material attacked on the surface of the aggregate; 4), grading and washing: grading and washing the aggregate after beingtreated by the eccentric vibromill through a grading sieve to obtain coarse aggregate and fine aggregate. By the process, the aggregate and the cement hydrate are recycled to maximum extent, and an environment-friendly idea of cyclic utilization is realized.

The invention provides an ionic wind rod capable of removing static electricity. The ionic wind rod capable of removing static electricity comprises a rod body, a high-pressure air pipe, a high-pressure generator and a spraying device. The high-pressure air pipe is connected at the upper end of the rod body, one side of the rod body is connected with the high-pressure generator through a high-pressure output line, a rod core is arranged in the rod body, a plurality of discharging needles are evenly distributed on the rod core, a plurality air outlets are evenly formed in the lower end of the rod body, spraying devices are installed at the lower ends of the air outlets, and the high-pressure air pipe, the discharging needles and the spraying device are matched. The ionic wind rod capable of removing static electricity is simple in structure and convenient to operate, static electricity ions on a product can be effectively removed, the air inlet speed and the air outlet speed can be effectively adjusted, the stability in the working process is guaranteed, the treating effect is improved, and the quality of the product is guaranteed; meanwhile, assembling, disassembling and maintaining are convenient, single maintaining and replacing can be achieved, and the service life of the ionic wind rod is prolonged.

The invention relates to the technical field of textile machines, in particular to a cage type cotton removing and tiny dust removing machine, which has a good tiny dust removing effect and is high in cotton discharging quality and low in failure rate. The machine comprises an upper box body (1), wherein a raw cotton inlet pipe (4) of which one side is provided with a raw cotton inlet (3) is arranged in the center of the top of the upper box body, and a dust removing cage (5) which is communicated with the top of the upper box body (1) is arranged in the internal center of the upper box body; a cotton inlet fan (6) is arranged on one side of the raw cotton inlet pipe (4); a port at one end of the raw cotton inlet pipe, which is extended into the upper box body, is provided with a rotating device; a tiny dust filtering chamber (7) is formed in an internal space of the dust removing cage (5); a tiny dust collecting chamber (8) is formed between the tiny dust filtering chamber (7) and the inner wall of the upper box body (1); a middle section cotton collecting chamber (9) which is connected with the tiny dust filtering chamber (7) is formed on the top of a lower box body (2); and a cotton discharging pipe (10) connected with the outlet of the middle section cotton collecting chamber (9), a dust collecting groove (11) connected with the outlet of the tiny dust collecting chamber (8) and a dust discharging air pipe (12) connected with the outlet of the dust collecting groove (11) are arranged at the bottom of the lower box body (2).

The invention discloses a fresh air device, a control method of the fresh air device and an air conditioner. The fresh air device comprises a shell, an air valve and a driving device. The shell is provided with an air inlet and an air outlet, the air valve is movably arranged at the air inlet, the driving device is connected with the air valve, and the driving device is used for adjusting the position of the air valve so as to adjust the opening degree of the air inlet. According to the fresh air device, the opening degree of the air inlet can be adjusted by adjusting the position of the air valve, so that the air inlet speed and the air inlet volume can be adjusted, and the anti-condensation effect can be achieved under the condition that the fresh air device is kept started to operate.

The invention relates to a production and processing method of medical melt-blown non-woven fabric. The production and processing method of the medical melt-blown non-woven fabric comprises a base plate, supporting frames and a melt-blowing device, wherein the supporting frames are symmetrically mounted at the upper end of the base plate, and the melt-blowing device is mounted between the upper ends of the supporting frames. By the adoption of the production and processing method of the medical melt-blown non-woven fabric, the problems that when an existing device is used for processing melt-blown non-woven fabric, the air speed during melt blowing cannot be accurately regulated generally, hot air cannot be effectively and uniformly dispersed during melt-blowing, and consequentially, the thickness distribution of fibers after melt-blowing is not uniform, and the subsequent usage effect of the non-woven fabric is affected; and meanwhile, when the existing device is used for processing the melt-blown non-woven fabric, melt-blown polymers cannot be effectively, uniformly and rapidly mixed generally, and consequentially, the melt-blown polymers are likely to be layered, and the qualityand effect of the non-woven fabric are affected are solved.

The invention discloses a sun louver capable of adjusting the indoor air speed and the indoor air direction of a gymnasium. The inclination angle of blades of the sun louver are can be adjusted; the sun louver is right arranged on the outer side of an air inflow window of the southern facade of the gymnasium, and the distance between the sun louver and a southern facade wall is 0.7-1 time of the width of each blade; according to the inclination angle of the blades, the blades are horizontally arranged or arranged in an up-dip or down-dip mode, and the up-dip angle and the down-dip angle of the blades is 25-40 degrees. Due to the fact that the sun louver with the inclination angle of the blades adjustable is arranged a certain distance from the air inflow window, the air direction and the air speed of indoor natural ventilation can be adjusted; the purposes of saving energy, improving an indoor healthy air environment and meeting the using requirements of different functions are achieved; the requirements of training and competition of large balls such as basketballs and volleyballs, small balls such as table tennis and badmintons and various sporting events for an indoor environment can be met.

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 relates to a protection device, in particular to a wind-resistant protection device for a photovoltaic power station. The technical problem is to provide the wind-resistant protection device for the photovoltaic power station, which can prevent an object from being blown by wind to smash a photovoltaic panel and can ensure that the receiving efficiency of the photovoltaic panel is not reduced. According to the technical scheme, the wind-resistant protection device for the photovoltaic power station comprises chassis, a mounting plate, a damping plate, a wind-resistant plate, first sliding rods and the like. The chassis are symmetrically arranged on the two sides of the bottom of the mounting plate, the number of the chassis is four, and the wind-resistant plate is arranged on one side of the top of the mounting plate. The first sliding rods are symmetrically arranged on the upper side and the lower side of the wind resisting plate in a sliding mode, and the damping plate used for reducing the wind speed is connected between the first sliding rods. According to the invention, under the action of the damping plate and the wind-resistant plate, wind cannot be completely blown to the photovoltaic panel, so that the photovoltaic panel can be effectively protected from loss.

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 provides a gear shifter for a jet flow air cabinet, the jet flow air cabinet and an air conditioning system, relates to the technical field of air conditioners, and solves the technicalproblem that in the prior art, for a jet flow air cabinet with a fixed-frequency motor, a gear shifter for adjusting the air outlet speed does not exist at an air outlet of the jet flow air cabinet. The gear shifter is installed in an air outlet of the jet flow air cabinet and comprises air blocking pieces; and the size of the area, shielding the air outlet, of the gear shifter and/or the position, shielding the air outlet, of the gear shifter can be adjusted by adjusting the relative positions among the air blocking pieces. The gear shifter provided by the invention is used for adjusting theairflow flowing speed of the air outlet of the jet flow air cabinet and the size of an air column.