43results about How to "Uniform and stable airflow" patented technology

The invention provides a battery container heat management system, comprising a box, an air conditioner, an air duct, a battery rack and a fan, wherein an air outlet gap of the air duct is arranged ata front end of the battery rack for outputting air flow, and a fan is arranged at a back end of the battery rack for extracting air flow. The whole heat management system adopts the circulation modeof front air outlet and back air return, the air flow is uniform, the required air pressure is small, the energy is saved, waterproof and dustproof effects are achieved, the temperature control effectis good, and the high rate current (fast) charging and discharging can be realized.

The invention discloses a supporting noise reduction system for a combustion gas turbine mobile power station, and relates to the technical field of prevention of noise pollution. The system comprisesa sound insulation box body used for mounting a combustion gas turbine, wherein the bottom of the sound insulation body is fixedly mounted on a suspending body frame through a sound attenuation system underframe, and wheels are mounted at the bottom of the suspending body frame; an inlet gas sound attenuation system is connected to one end of the sound insulation box body, and an intake air soundattenuation system is arranged above the inlet gas sound attenuation system and communicates with a gas inlet of the sound insulation box body; and a first-stage exhaust sound attenuation system is arranged at the top of the other end of the sound insulation box body, a second-stage exhaust sound attenuation system is mounted at the top of the first-stage exhaust sound attenuation system, and thefirst-stage exhaust sound attenuation communicates with an exhaust port of the sound insulation box body. According to the supporting noise reduction system for the combustion gas turbine mobile power station, noise produced by the combustion gas turbine during working is reduced, and the working environment is protected.

The invention provides a nozzle for widening a tempering margin, a nozzle array and a combustor. A rectifying device of the nozzle can enable currents of fuel gas and air entering the nozzle to become more stable and uniform, so that the tempering caused by hot spots in combustion can be effectively prevented; a step-shaped expansion section of the nozzle can stop propagation of the tempering to the upstream, so that the tempering margin is widened; and as a direct passing way wave structure and a center cone are arranged in an inner-layer cylinder of the nozzle, the combustion efficiency is further improved, the pollutant discharge is reduced, and the combustion state is improved.

The invention discloses a biological method-based compound compost odor filtering device and method. The biological method-based compound compost odor filtering device is characterized in that odor generated in a vessel composting process is introduced into an odor treatment device with a concrete structure through a water-cooled temperature adjustment device, a draught fan and a one-way valve; a concrete trench allowing gas to be uniformly distributed is formed in the bottom of the device; a concrete cover plate with gas holes is arranged at the upper part of the device; tracks are laid on the cover plate; a drawer-type housing is arranged on the tracks and made of engineering plastic, and gas holes are uniformly distributed in the lower part of the drawer-type housing; the housing is filled with double ball bodies made of engineering plastic uniformly; white-rot fungi are inoculated to the upper half part of an inner ball of the double ball bodies to form a first-stage filtering layer; the odor generated in the composting process enters a second-stage active soil filtering layer after being buffered, adsorbed and partially degraded by the first-stage filtering layer, and finally lawns are planted on the surface of the soil filtering layer. Through the adoption of the two-stage compound compost odor processing device, the problems that pure soil filtering layer particles are likely to block a filtering material, the filtering material on the lower layer is likely to be dry, air flow fluctuates remarkably, and the energy consumption is high are solved.

The present invention provides an indoor unit turbine housing structure of cabinet air conditioner. The indoor unit turbine housing structure of cabinet air conditioner comprises a turbine housing body connected with a back cover plate, wherein, a turbine tongue, a spiral curve, a field angle, a fan, as well as a gap between the fan and the turbine tongue are arranged on the turbine housing body. The improvement of the present invention lies in that an outlet of the turbine housing body is alternately provided with flow guiding blades, which improves the airflow channel at the outlet of the turbine housing body, makes the airflow channel at the outlet part more optimized, ensures the uniform and smooth outlet air of airflow, can effectively reduce the vortex flow appearing at the turbine housing outlet part, and is advantageous to the cool-heat exchange of airflow at the part of a heat exchanger. Meanwhile, the present invention decreases noise, improves the working performance of air conditioners, and meet the environmental protection requirements.

The invention relates to a multistage filtering deduster. The multistage filtering deduster comprises a shell, an ash bucket, a cover plate and a horizontally arranged separator plate mounted at the inner side of the shell, the separator plate divides the inner side of the shell into an upper part and a lower part which are not communicated, the ash bucket is mounted below the shell, the cover plate is mounted above the shell, a mixed flow chamber is formed among the shell, the ash bucket and the separator plate, a flow collecting chamber is formed among the shell, the cover plate and the separator plate, the shell is provided with an air inlet communicated with the mixed flow chamber, and the shell is provided with an air outlet communicated with the flow collecting chamber; the separatorplate is provided with an axially-vertically-arranged inner cylinder placed in the mixed flow chamber, the inner cylinder is rotatably connected with the separator plate, and a flow guiding chamber is formed at the inner side of the inner cylinder; the inner cylinder is provided with a special-shaped filter bag with opened top and bottom, placed below the inner cylinder, the vertical position ofthe special-shaped filter bag corresponds to the position of the air inlet, and the inner cylinder is provided with a pressurization fan placed at the inner side of the special-shaped filter bag; andthe separator plate is provided with a plurality of vertically-arranged micro-porous filter bags placed in the flow guiding chamber, and the upper ends of the micro-porous filter bags upwards go through the separator plate and are connected with the separator plate.

The invention discloses an in-situ photoelectric multifunctional coupling atomic force microscope testing system. The in-situ photoelectric multifunctional coupling atomic force microscope testing system comprises a light source and volt-ampere testing system of a photoelectric device, a multifunctional probe atomic force microscope system and an atmosphere protection system, wherein the light source and volt-ampere testing system of the photoelectric device comprises a fixture, a light source and a digital source meter; the multifunctional probe atomic force microscope system comprises a multifunctional probe, a laser emitter, a laser spot position detector, a laser detector, a data outgoing line and a computer display; the atmosphere protection system comprises a box, a gas inlet and outlet device, a spiral air current forming device, a temperature and humidity control device, a gas storage device, an occlusion design sliding door and an observing window. The testing system has the advantages that a photoelectric testing part and a multifunctional probe atomic force microscope are organically combined together in an integrated system, so that macroscopic photoelectric performance and microscopic information such as microscopic change information of electronics, ionization, polarization and the like of working samples can be tested synchronously in situ in real time.

The invention relates to three-dimensional (3D) printing device and method for improving the workpiece molding quality. The 3D printing device comprises a tank, a filter system, an air blower, an airblowing device, a powder cylinder, a processing cylinder and an atmosphere heating tank, wherein the tank is a vacuum tank; the air blower arranged on the outer part of the vacuum tank blows air intothe vacuum tank; the atmosphere heating tank is used for heating the atmosphere around the processing cylinder, so that constant hot air blowing is maintained in a processing area during the processing stage, and a workpiece is ensured to be cooled according to a preset cooling gradient in the cooling stage; and in the whole printing process, the atmosphere around the processing cylinder is blownout through the air blowing device and is then filtered through the filter system.

The invention provides a mine return air guiding device for guiding the discharge of return air of a mine. The mine return air guiding device comprises an air introducing cylinder installed at an airguiding cylinder of a mine mouth in an upward extending mode and an air guiding cylinder communicating with the air introducing cylinder, the air guiding cylinder is horizontally arranged and is connected to the ground through support rods, the air introducing tube and the mine mouth are in tight coupling, and the air guiding tube and the air introducing tube are in tight coupling.

The invention discloses an annular dust concentration measuring instrument correction device and a use method thereof. The correction device comprises an annular wind tunnel, fans, powder honeycombs, a dust generation mechanism and a detection mechanism, the annular wind tunnel comprises an air inlet section, a steady flow section, a first corner section, a test section, an air outlet section and a second corner section which are sequentially connected in a clockwise direction; the fans are respectively arranged at the positions close to the front end and the rear end in the test section, and the honeycombs are respectively arranged at the front end and the rear end of the test section and are positioned between the two fans; and the dust generation mechanism is arranged in the steady flow section, and the detection mechanism is arranged in the test section and is positioned between the two honeycombs. According to the annular wind tunnel, the occupied area is saved, the energy consumption of a test system is reduced, the two fans rotating in the opposite directions are installed on the test section, the transverse wind flow influence is eliminated while continuous wind flow is provided for the test section, the honeycombs are installed between the fans, bias flow formed by the first corner section is reduced, and the correction test is completed by continuously and repeatedly using the annular dust airflow.

The invention discloses a culture bottle for a sulfur hexafluoride permeation tube. The culture bottle comprises a bottle body and a bottle cap, wherein a gas outlet is formed in the top of the bottle cap; a gas inlet is formed in the bottom of the bottle body; and a gas distribution plate is arranged above the gas inlet in the lower part of the bottle body. The culture bottle can meet the requirements of substances which need to be cultivated under the conditions of specific temperature and specific flowing gas. The culture bottle can be placed in a water bath pot or a culture box and is convenient to use. The culture bottle is provided with the specific gas distribution plate, so gasflow in the bottle is uniform and stable.

The invention discloses a drying oven with double air channels for a heat setting machine. The drying oven comprises a heat-insulation oven body and two hot-air blowing devices. The hot-air blowing devices are positioned in the heat-insulation oven body, a heat-insulation door is arranged on the heat-insulation oven body, the hot-air blowing devices are connected with a flow guide plate, the flow guide plate is connected with air outlets of a fan, air inlets of the fan are sequentially connected with a natural gas heating system, and the two hot-air blowing devices are respectively positioned above and below needle plates. The drying oven has the advantages that the flow guide plate is arranged at the air outlets of the fan and is connected with the hot-air blowing devices, the double air channels can be formed by the two hot-air blowing devices, the two hot-air blowing devices are respectively positioned above and below the needle plates, accordingly, airflow can uniformly smoothly flow, resistance on the airflow can be reduced, and heat setting effects can be guaranteed; the drying oven is provided with the natural gas heating system and is high in heating-up speed, the heating-up preparation time of the drying oven can be shortened, the drying oven is low in pollution and easy to maintain, the energy utilization rate of the drying oven can be maximized, accordingly, production requirements can be met, the production cost can be greatly reduced, integral production procedures are environmental friendly, and energy can be saved in the integral production procedures.

The invention discloses a flexible air distribution system applied to a medicine warehouse, and belongs to the technical field of flexible air supply of cloth bag air ducts. Cloth bag air ducts are hung on a top frame of a medicine warehouse in a distribution mode of a plurality of sections, the intersections of the plurality of sections of the cloth bag air ducts can be sewn by adopting high-strength polyester or polypropylene fiber raw white threads, so that the plurality of sections of the cloth bag air ducts can be communicated with one another; buckles or hook-and-loop fasteners are arranged in the sewing lines of the cloth bag air ducts,so that the cloth bag air ducts can be conveniently fixed to the top frame of the medicine warehouse; an air supply sections of the cloth bag air ducts supply air through open holes; two sets of air supply holes are formed in the 4 o'clock direction, the 8 o'clock direction, the 5 o'clock direction and the 7 o'clock direction separately, and one set of air supply holes is formed in the 6 o'clock direction; the air supply holes in the 4 o'clock direction, the 5 o'clock direction, the 6 o'clock direction, the 7 o'clock direction and the 8 o'clock direction can supply air to medicine frames of different heights, direct blowing is avoided; and barrel-shaped filter screen frameworks are arranged in the cloth bag air ducts, so that the good dustproof and supporting performance is achieved. The cloth bag air duct air supply system has the good disassembly performance.

A detachable type dry powder material gasifying tool comprises a gasifying tool base, a gasifying layer face, a gasifying layer face pressing plate, a gas inlet pipe and a gas flow dividing chamber. The detachable type dry powder material gasifying tool is characterized in that the gasifying tool base is arranged to be a rectangular groove, a connecting plate with a bolt hole is arranged on a groove opening edge, the connecting plate is provided with the gasifying layer face which covers a groove opening, the gasifying layer face pressing plate with the bolt hole is arranged on the side of the gasifying layer face and corresponds to the connecting plate on the gasifying tool base, the gasifying layer face pressing plate and the connecting plate are connected together through a bolt, a rectangular gas flow dividing chamber with a sealing cover is arranged in the middle of one side of the gasifying tool, a flow dividing plate with small evenly-densely-distributed holes is arranged on a communicating hole of the gasifying tool base and the bottom of the gas flow dividing chamber, a gas inlet pipe is arranged on the upper side face of the gas flow dividing chamber, the gas inlet pipe, a stand type cone-shaped lower dust tank gas inlet and an air compressor are connected, the bottom of the gasifying tool base is arranged on the side wall of a cone-shaped lower dust tank in an attaching mode, and the gasifying tool is fixed on the side wall of the cone-shaped lower dust tank through the connecting plate arranged on the side wall of the cone-shaped lower dust tank and the fixing bolt which fixes the gasifying layer face.

The invention relates to the technical field of extractor hood design, in particular to a volute molded line drawing method, a check valve molded line drawing method, an air duct structure and a range hood. The volute molded line drawing method provided by the invention comprises steps: on the basis of the volute first molded line generated by the logarithmic spiral line, increasing the opening degree of a first spiral line segment gradually and equivalently according to the area, and then re-fitting into a second spiral line segment; fitting the second spiral line segment with a first straight line segment, a second straight line segment, a volute tongue molded line and a third straight line segment of the volute first molded line to form a final volute second molded line; compared with an existing volute molded line generation method, the volute molded line drawing method provided by the invention has the advantages that the advantages of a logarithmic spiral line are reserved, meanwhile, local correction can be conveniently and quickly performed on the volute molded line according to limiting conditions, so that the volute molded line is uniformly increased and is not abruptly changed, finally, airflow acceleration in a volute is more uniform and stable, pressure pulsation is reduced, and aerodynamic noise is lowered.