35results about How to "Maintain wind speed" patented technology

The invention provides a grate cooler module capable of forming a grate cooler. The grate cooler module is longitudinally connected to obtain the required grate cooler so that the modular production is realized by the grate cooler. The grate cooler module comprises a bottom frame, three rows of trays, drive plates and a grate plate. Air vents are arranged on the base plates of the trays. One drive plate is arranged between two adjacent rows of trays. The lower parts of two drive plates are connected with the drive device through a transition plate. A movable push rod is connected with the upper parts of the drive plates. The grate plate comprises a supporting base and a U-shaped bending plate. The openings of two adjacent bending plates are opposite; the side plate of the bending plate with an upward opening is connected with inner bottom parts of the bending plates with downward openings at two sides of the bending plate. A gap is arranged between the side plate of the bending plate with downward opening and the inner bottom parts of the two bending plates with upward openings. Air outlets are arranged on two side plates of the bending plates with upward openings. An air inlet is arranged on bottom part of the supporting base. A gap is arranged between the bottom part of the supporting base and the bottom part of the bending plate with downward opening.

This case discloses an air shower that can store filtered gas, including: the inner wall of the air shower, on which an air inlet component and a linear sensor are arranged; the housing of the air shower located outside the inner wall of the air shower and a filter system for purifying air between the air shower housing and the inner wall of the air shower; wherein, the air shower also includes a gas chamber that can store filtered gas; the gas chamber includes an inlet, Cavity, air bag and output pipeline; the inlet is connected to the gas collection hood; the gas collection hood is located at the end of the filter system; the bottom of the cavity is provided with an air bag, and the air bag is filled with argon; the filtered gas enters the gas The air bag behind the cavity is compressed; the output pipeline is connected to the air inlet component; the linear sensor is connected to the air inlet component for signal, and is used to drive the air inlet component to enter the wind. This case solves the technical problem that the multi-stage filter reduces the flow velocity when the nozzle is sprayed, and the service life of the filter will be reduced by increasing the wind force.

The invention discloses a wall-mounted spherical indoor unit and a control method thereof, wherein the wall-mounted spherical indoor unit comprises: a housing having a main air inlet, a main air outlet, and a main air inlet connected to the main air outlet. The air duct, the main air outlet is arranged in a rectangular shape; the air guide is arranged at the main air outlet or in the main air duct, and the air guide has an auxiliary air inlet, an auxiliary air outlet and a connection between the The secondary air duct of the auxiliary air inlet and the auxiliary air outlet, the auxiliary air inlet communicates with the main air duct; the airflow driving device is used to drive airflow from the auxiliary air inlet into the auxiliary air duct. In the technical solution of the present invention, through the setting of the auxiliary air duct system, the change of the direction of the airflow is completed under the action of air pressure, avoiding the extrusion and friction between the airflow and the entity, thereby greatly reducing the energy consumption of the airflow during the direction change process , which is conducive to increasing the air volume and maintaining the wind speed, which is beneficial to the user to send the airflow to a designated location far away.

The invention provides a fan shroud and a blower device, which can ensure the wind speed of a part far away from a main shaft in the radial direction when a fan rotates, improve the trafficability of traveling wind when a vehicle travels, and prevent the air volume performance from being reduced. The fan shroud (4) includes: a shroud wall surface (11) extending around the fan in a radial direction orthogonal to the rotation axis; and a plurality of ventilation openings (21) which are formed through the shroud wall surface (11) in the thickness direction of the shroud wall surface (11) and through which the air generated by the fan motor passes. The width (Wa) of the wall surface side opening (21a) on the downstream side of the air flow of the ventilation opening (21) is smaller than the width (Wb) of the transverse wall side opening (21b) on the upstream side of the air flow of the ventilation opening (21).

An embodiment of the invention provides a series-parallel variable cross-section type generator sub-slot ventilation cooling structure. The structure includes: a sub-slot, rotor core, rotor winding, rotor wedge lower gasket bar, rotor slot wedge and series-parallel ventilation ditch. The auxiliary slot of rotor core yoke part of generator linear segment adopts variable cross-section form. The cross-sectional area of auxiliary slot near fan side is the largest, and the cross-sectional area decreases with the axial extension of rotor away from fan. The rotor winding, the rotor wedge lower gasketbar and the rotor slot wedge are provided with ventilation channels in the form of vertical series-parallel connection. The cooling air flows into the rotor winding from the auxiliary slot and flowsout from the vent on the rotor slot wedge to form a ventilation and cooling loop. The generator ventilation cooling structure of the invention can be used for solving the problem that the cooling effect of the rotor sub-slot ventilation structure is obviously weakened when the cooling air enters into the rotor core; The wind speed of the cooling air is ensured, and the temperature of the rotor winding is effectively reduced.

The invention discloses a ceiling machine and a control method thereof, wherein the ceiling machine includes: a housing having a main air inlet, a plurality of main air outlets, and a main air duct connecting the main air inlets and the main air outlets; Multiple air suction parts and air guide parts, the air guide part is detachably connected to the housing, the air suction part extends from the air guide part to the main air outlet, and the air guide has auxiliary air inlets, auxiliary air outlets and connected auxiliary air inlets The auxiliary air duct connected with the auxiliary air outlet, the auxiliary air inlet is connected with the main air duct; the airflow driving device is used to drive the air flow from the auxiliary air inlet into the auxiliary air duct. In the technical solution of the present invention, through the setting of the secondary air duct system, the direction of the airflow is changed under the action of air pressure, avoiding the extrusion and friction between the airflow and the entity, thereby greatly reducing the energy consumption of the airflow during the direction change process, Therefore, it is beneficial to increase the air volume and maintain the wind speed, and it is beneficial for the user to send the airflow to a designated location far away.

The invention discloses a whole automobile / plate environment test cabin for an automobile and a humidity control method for the test cabin. The whole automobile / plate environment test cabin comprises an experiment cabin body, one or more groups of fresh air devices connected with the experiment cabin body and a filtering device connected with the fresh air device, wherein the experiment cabin body comprises a test cabin body and a heat preservation box body arranged outside the test cabin body; a static pressure cabin including a plurality of air supply ducts which are arranged side by side is arranged at the top of the test cabin body; an air supply hole plate with air supply holes is arranged at the lower part of each air supply duct; an air supply fan for supplying air to the test cabin body is arranged in each air supply duct; each group of the fresh air device comprises a fresh air treatment tank and an ultrasonic atomizer; a spraying device is arranged at the upper part in each fresh air treatment tank, and a condenser and a heating pipe are arranged at the lower part in each fresh air treatment tank; the tanks are filled with distilled water; circulating water pumps connected with the spraying devices are arranged outside the fresh air treatment tanks; the humidity is controlled by fresh air humidity control and ultrasonic atomization and humidification modes. The whole automobile / plate environment test cabin can meet the requirements for different fresh air amounts under different experiment conditions and effectively control the humidity.

The invention provides an air and clinker leakage preventing grate cooler module, which can be combined into a grate cooler. The grate cooler can be formed by connecting multiple air and clinker leakage preventing grate cooler modules longitudinally, and accordingly modular production of the grate cooler is realized and the grate cooler is free of air leakage and clinker leakage. The air and clinker leakage preventing grate cooler module comprises an underframe, trays, driving boards and grate plates. Bottom plates of the trays are provided with vent holes. Movable push rods are connected to the upper portions of the driving boards, and the lower portions of the driving boards are connected with a driving device. Each grate plate comprises a support and U-shaped bending plates, openings of two adjacent bending plates are opposite to each other, side plates of each bending plate with the upward opening are connected with inner bottoms of the bending plates which are provided with the downward openings and located on two sides of the bending plate with the upward opening, gaps are reversed among side plates of each bending plate with the downward opening and the inner bottoms of two bending plates with the upward openings, the side plates of each bending plate with the upward opening are provided with air holes, an air outlet is arranged at the bottom of the support, and gaps are reserved among the bottom of the support and the bottoms of the bending plates with downwards openings. Besides, partition plates are arranged between the trays and the supports, and inverted-U-shaped cover plates are arranged on the driving boards.

The invention discloses an orifice-plate-type air duct structure of a volatile organic compound detection system. The structure disclosed by the invention comprises a test bin and a test bin gate connected with the test bin, wherein the test bin is also internally provided with an air duct plate; the upper part of the air duct plate is provided with an air outlet orifice plate, and the lower partof the air duct plate is provided with an air return orifice plate; the air duct plate, the air outlet orifice plate, the air return orifice plate and the inner wall of the test bin form a first air duct; the first air duct is internally provided with at least one test bin circulating fan; the air outlet orifice plate, the inner wall of the test bin and the inner wall of the test bin gate are provided with air outlets and air return ports; and the air outlet orifice plate is provided with a right-angled, inclined or circular-arc-shaped air deflector. In the test bin, airflow blown down along the inner wall of the test bin is formed, thus adsorbed substances on the inner wall of the test bin are blown down so as to be continuously circulated in the test bin, so that the detected detection value of a sample obtained during sampling is more approximate to the actual value of the volatile organic compound in the test bin, the detection error is greatly reduced, and the detection precisionis improved.

The invention discloses a simulated experimental device and an experimental method for the law of spray dust fall under the wind flow field. During the experiment, a stable wind flow field is mainly formed in the simulated experimental device through a suction fan; Under the action, the dust is transported into the simulated experimental device; through the nozzle on the spray rod connected to the water supply pump, a stable water mist is formed in the simulated experimental device; through the laser droplet size analyzer and PM2.5 dust sampler respectively Measure the droplet size and droplet velocity at different measuring points under different conditions, as well as the dust concentration before and after passing through the droplet field, and transmit the data to the computer, so as to obtain the particle velocity, Relationship between particle size and concentration. The invention has the characteristics of high degree of simulation, accurate and reliable experimental results, compact device structure, convenient and convenient experimental operation, flexible adjustment and the like.

The invention discloses a double cross-flow air conditioner and a method thereof, wherein the double cross-flow air conditioner comprises: a casing having a main air inlet, a first main air outlet and a second main air outlet and communicating with the main air inlet The air outlet and the first main air duct of the first main air outlet are connected to the main air inlet and the second main air duct of the second main air outlet; the air guide is arranged on the first main air outlet corresponding to the first main air outlet. A main air duct, and / or a corresponding second main air outlet is arranged in the second main air duct; the air guide has an auxiliary air inlet, an auxiliary air outlet, and an auxiliary air inlet that communicates with the auxiliary air outlet and the auxiliary air outlet. an air duct; the auxiliary air inlet is communicated with the first main air duct or the second main air duct; an air flow driving device is used to drive the air flow from the auxiliary air inlet to enter the auxiliary air duct. In the technical solution of the present invention, through the arrangement of the auxiliary air duct system, it is beneficial to increase the air volume, maintain the air speed, and help the user to send the air flow to a distant designated position.

The embodiment of the present invention provides an air conditioner fan control method and device, which can solve the problem that the bus voltage exceeds the overvoltage protection value caused by the reverse charging of the air conditioner fan, and prevent the air conditioner from alarming and shutting down due to the reverse charge of the air conditioner fan, thereby improving the performance of the air conditioner. stability. The method includes: detecting the busbar voltage of the air conditioner, and determining whether the busbar voltage of the air conditioner is greater than a preset magnetization voltage entry value, and the preset magnetization voltage entry value is smaller than the overvoltage protection value of the air conditioner; if the busbar voltage of the air conditioner is determined is greater than the preset magnetization voltage entry value, set the first direct axis current command value of the permanent magnet synchronous motor to the pre-stored current value, and the pre-stored current value is greater than zero; obtain the target speed of the permanent magnet synchronous motor, and according to The target speed and the first direct axis current command value are used to drive the permanent magnet synchronous motor, so that the permanent magnet synchronous motor works in a motoring state. The invention is suitable for the technical field of air conditioning.