674results about How to "Improve ventilation efficiency" patented technology

An air conditioning system is provided. The air conditioning system includes an air cleaning unit. The air cleaning unit includes a grill having a discharge grill on a side portion, a fan sucking indoor air and / or outdoor air, a filter cleaning the sucked air, and an installation case attached to one side of the discharge grill and having a suction hole and an exhaust hole. A ventilation unit operates in association with the air cleaning unit. A duct member connects the air cleaning unit and the ventilation unit.

A ventilating device and an outdoor unit including the same are disclosed. More particularly, the present invention relates to a ventilating device including a counter-rotating fan having improved wind ventilation efficiency as well as minimized noise generated during the fan operation.

An Electronic Control Unit which houses electronic circuit for controlling various devices of vehicles in a sealing case is characterized in that the case has a ventilation hole to communicate an interior and an exterior of the case, the ventilation hole comprises a filter for preventing from entering contaminants from the outside, and a sectional area of the ventilation hole is gradually enlarged toward the interior of the case.

A ventilation apparatus includes a stator, a vibrator arranged close to the stator, a permanent magnet to generate a magnet flux to form a path of the magnet flux along the stator and the vibrator, a coil wound around the stator or vibrator, and a ventilator coupled to the vibrator and operated by a linear reciprocating motion of the vibrator generated when an electric current is applied to the coil to change the magnet flux of the permanent magnet. Thus, the ventilation apparatus having a simplified ventilation structure increases a ventilation efficiency.

A fan motor having a small thickness and its impeller's blades formed to have a longer length in the diametrical direction than a width in the axial direction. Since the blade of the fan motor has a tooth structure or chamfers at its edge end in the diametrical direction, turbulence is forcibly evoked in an airflow to promote the turbulent diffusion, thereby suppressing the trailing vortex and reducing the aerodynamic noises, and thus the ventilation efficiency is improved.

An LED bulb includes a lower cover having ventilation holes formed at outer periphery thereof, and a first coupling opening formed at top side thereof; a separating unit provided within the lower cover at a position between lower edges of the ventilation holes and bottom side of the lower cover, and having a convection pathway formed at top side thereof; a heat sink having bottom end positioned on top side of the separating unit; and an upper cover having top side formed with convection hole corresponding to top end of the heat sink, and a second coupling opening formed at bottom side thereof. When the second and first coupling openings are coupled with each other, the upper and lower covers are assembled together to form a central axis bidirectional convection heat dissipation pathway sequentially through the ventilation hole, the convection pathway, the heat sink and the ventilation hole accordingly.

The invention discloses an outdoor unit and an air-conditioner with the outdoor unit. The outdoor unit comprises a shell, a protection cover, a valve installation plate, a high-and-low-pressure stop valve, a connector and a power line. The shell comprises a chassis and a right lateral plate, and a matching hole and an air inlet are formed in the right lateral plate. The protection cover is arranged on the outer wall of the right lateral plate, containing space is defined between the protection cover and the right lateral plate and communicated with the air inlet, and one side of the containing space is opened for forming an opening. The valve installation plate is located in the shell and matched with the matching hole. The high-and-low-pressure stop valve is located in the containing space and installed on the valve installation plate. The connector is arranged on the outer wall of the right lateral plate. The power line is connected with the connector and extends out of the containing space through the opening. By means of the outdoor unit, the attractiveness of the appearance can be improved, the service life of the high-and-low-pressure stop valve and an outdoor unit connecting pipe can be prolonged, the radiating effect can be improved, and reliability of the air-conditioner can be improved.

The invention discloses an air processing device control system based on a cloud platform and a control method of the air processing device control system. The control system comprises air monitoringdevices and air processing devices, wherein the air monitoring devices and the air processing devices are associated with the cloud platform through a network system; and the cloud platform is associated with terminal devices used for controlling the air processing devices to work through the network system. The control method is that the cloud platform controls the air processing devices according to interaction results of the cloud platform and the terminal devices. According to the air processing device control system based on the cloud platform and the control method, great convenience isbrought to a user, namely, the user can control the different air processing devices to work cooperatively at one place; the advantages of the cloud platform are fully utilized, the total production cost of the air processing device control system is greatly reduced, the cost performance of the air processing device control system is greatly improved, and the application and popularization of theair processing device control system are facilitated; the multi-user air processing device control system based on the cloud platform can be realized; and use safety of the system is greatly improved.

The invention relates to a rotating device inside a permanent magnet wind generator, in particular to a compact permanent magnet wind generator rotor, solving the problem of an unreasonable structure of the permanent magnet wind generator rotor. The compact permanent magnet wind generator rotor comprises a rotor bracket, and a magnetic pole box provided with a permanent magnet mounting hole; magnetic steel is arranged inside the permanent magnet mounting hole; a fixed rod mounting hole is arranged on the magnetic pole box; a bolt perforating hole is arranged on the contact surface of the magnetic pole box and the rotor bracket; the bolt perforating hole is communicated with the fixed rod mounting hole; a locating lug boss is also arranged on the surface contacting a magnet yoke on the rotor bracket on the magnetic pole box; a radial bolt hole and a guide locating groove matched with the locating lug boss are arranged on the magnet yoke on the rotor bracket, and a fixed rod with the bolt hole is arranged inside the fixed rod mounting hole. The compact permanent magnet wind generator rotor is novel in structure; the performance of a motor is improved; the manufacturing cost of the motor rotor is reduced, and the stability of the entire structure of the rotor is improved.

The invention is a substitute ventilation radiator belonging to heating and ventilating air condition refrigerating field. The invention includes a radiator, substitute ventilator. The radiator is arranged on the board at one side of the substitute ventilator, the board of the substitute ventilator is used as the bottom board, and the radiator and the substitute ventilator are arranged together back to back. It has characters of substitute ventilation and radiation cooling and heating technology, it can supply fresh wind to room with substitute method, eliminates the humid charge in the room, satisfies the demands of people for fresh air; it can cool or heat the room with radiator, bears the sensible cool or heat charge in the room, upgrades the comfort level and the air quality in room, saves the air condition consumption and the construction space.

The invention relates to an air purifier for clearing away harmful gases and dust for a long tunneling working surface, aiming at solving the problem that the ventilation for the tunneling working surface for construction of a long tunnel is difficult. A centrifugal fan is used to send harmful gases CO, CO2, NO, NO2, sulfides and dust in the tunnel into a degrading tool through a suction guard and a connecting pipe. The CO and NO, which are left after the reaction degradation, are sent into an absorption box through the connecting pipe, and the residual gases are filtered off water vapors by a porous fiber separating membrane, and the CO and a little of NO, which are left after the degradation and membrane filtration, are absorbed by a low-temperature pressure swing adsorption tower; the pressure swing absorption tower which absorbs the CO and NO is transported out of the tunnel, wherein the tower is heated to 80-135 DEG C by an electric heating tape in the tower to desorb the CO and NO. The air purifier can effectively prevent pollution to the tunneling working surface from harmful gases, and is suitable for clearing off harmful gases and dust.

A blow-molded foam having a wall portion formed in such a manner that a thermoplastic resin containing a foaming agent mixed therewith is subjected to blow molding. Herein, the wall portion has a closed cell structure in which a plurality of foamed cells are contained. The wall portion has an expansion ratio of not less than 2.0 times. The wall portion has an outer face having a center-line average surface roughness Ra of less than 9.0 μm. The foamed cell has a cell diameter having a standard deviation of less than 40 μm in a thickness direction of the wall portion.

The invention discloses a sealing means for a heating non-combustion product. The means comprises the following steps that a sealing material is selected, specifically, an appropriate sealing materialis selected to seal an opening according to the shape of a heating mold for a heating non-combustion smoking set, the far lip end seal or the two end seals of a heating non-combustion smoke emittingunit to form a smoke emitting unit through utilizing the sealing material, and the seals are treated by adopting a glue applying or calendaring technique. The means can prevent a filler in the smoke emitting unit from escaping out, heating fins can be conveniently cleaned, the ventilation efficiency of the smoke emitting unit can be increased, and the smoke emitting effect can be improved.

An Electronic Control Unit which houses electronic circuit for controlling various devices of vehicles in a sealing case is characterized in that the case has a ventilation hole to communicate an interior and an exterior of the case, the ventilation hole comprises a filter for preventing from entering contaminants from the outside, and a sectional area of the ventilation hole is gradually enlarged toward the interior of the case.

The invention specifically relates to a ventilation method of inclined shaft assisted double-hole construction. The ventilation method comprises the following steps: A, analyzing a pollution source and determining a ventilation standard; B, designing a ventilation system; and C, calculating tunnel ventilation parameters, selecting a fan and implementing a scheme; the ventilation system in the step B is specifically as follows: an axial-flow fan is arranged at an outer hole of an inclined shaft at an inclined shaft construction phase and a phase when inclined shaft construction is completed and a tunnel portal does not communicate with the inclined shaft, and a heading-face forced ventilation pattern is adopted with an air duct extending into a working face for ventilation; at a phase when the tunnel portal communicates with the inclined shaft, the tunnel portal is communicated with the inclined shaft and a jet flow gallery ventilation pattern is adopted, and a secure tunnel and a main tunnel both serve as air intake channels, while the inclined shaft serves as an exhaust channel. The ventilation method in the inclined shaft assisted double-track construction solves a long-distance problem that single forced ventilation fails in solving, and is high in ventilation efficiency and good in effect; moreover, the ventilation time is shortened and the construction efficiency is improved, and both electricity and air ducts can be saved; in addition, maintenance is convenient.

A baby sling with foot support shoes is disclosed, which is capable of supporting a baby's feet so that the baby's knees are bent and legs are not dangling when the baby is held on a carer's chest by the baby sling, so as to prevent the baby's thighs from being pressed and chafed between the carer and the baby sling, while improving the baby's health and stability by allowing smooth blood circulation.

The invention relates to an eccentric fan of bank air condition indoor machine, wherein it comprises: blade wheels, worm frame with gas inlet chamber, wind channel; said blade wheels are mounted inside the chamber with 8-12 blades; the front gas inlet of gas inlet chamber; said blades have one rectify edge coiled towards to the blade wheel rotation direction at the edge near to the gas inlet of blade wheel; the part of blade near to the outer diameter of blade wheel is lightly bended to the rotation direction of blade wheel; and the part near to the inner diameter is lightly bended to the reversed rotation direction; the gas inlet has metal frame. The invention can restrain the generation of turbulent airflow at the surface of blade and the airflow separation to avoid gas reflux, increase the pressure at the gas outlet, improve the ventilate efficiency and reduce the noise.

The invention belongs to the field of agriculture facilities, and relates to a closed henhouse ventilating system and an air flow organization method. The system includes a longitudinal wall (1), a mountain wall (2), hen cages (3), a wet curtain cooling device (4) and a blower (5); the hen cages (3) are in parallel to the longitudinal wall (1), and channels are formed between different lines of hen cages (3) or between the hen cage (3) at the outermost side and the longitudinal wall (1); the blower (5) is installed on the mountain wall (2) at one end, and an air inlet dual-leaf guide flow plate (7) and a compartment (6) are respectively arranged on the mountain wall (2) at the other end and the outside; the wet curtain cooling device (4) is installed on the wall body of the compartment (6) except for the mountain wall (2); two blades of the air inlet dual-leaf guide flow plate (7) are opened towards the hen cages, and vertically arranged and aligned to every channel, and its height is equal to that of the hen cages (3). The closed henhouse ventilating system can reduce the resistance to air flow by the hen cages, effectively reduce the temperature difference between the air inlet and the exhaust opening; moreover, the air flow organization is orderly and evenly distributed, and the venting and cooling efficiency is high.

The invention relates to an inducing ventilation system of a ship engine room. The inducing ventilation system comprises an air blower, an exhaust fan and an electrical control cabinet. The air blower and the exhaust fan are arranged at the tops of inner corners of the two sides of an engine room body respectively. The air blower and the exhaust fan are communicated with air inside and outside the ship engine room under the control of the electrical control cabinet. Inducing fans are arranged in the ship engine room, air inlets of the inducing fans are provided with air heat exchangers, and air outlets of the inducing fans are provided with jet flow nozzles in a scattered shape. The inducing fans are arrayed at intervals in a head and tail corresponding mode to form multiple circulation rings, wherein according to the circulation rings, air enters from the air blower, and air discharging is achieved through the exhaust fan. The air performs relaying according to a preset process through the inducing fans, so that an air flow pushing and pulling effect is achieved, a velocity field of air flowing is generated in the whole ship engine room, and ventilation is smoothly performed on the engine room. The arrayed inducing fans form relaying inducing air blowing, so that air pipes are omitted, space is saved, and cost is reduced.

The invention discloses a chromium fog waste gas recovery treatment device which comprises a waste gas collecting device and a waste gas treatment device, wherein the waste gas collecting device consists of a rim exhaust hood (1), an air inlet pipe (2), and an air draft branch pipe header pipe (3), wherein the air inlet pipe (2) is connected with the rim exhaust hood (1) and the air draft branch pipe header pipe (3), the air draft branch pipe header pipe (3) is arranged at the upper end of the rim exhaust hood (1), an electroplating bath (11) is arranged at the lower end of the rim exhaust hood (1), and a gap is arranged at the lower end of the rim exhaust hood (1), at least three air draft holes (10) are arranged in the upper end of the rim exhaust hood (1), a movable cover plate (9) is arranged on the rim exhaust hood (1), the waste gas treatment device consists of a waste gas spraying purification tower (4), an air outlet pipe (5), a chromium fog recoverer (6) and a recovery liquid tank (7), and a funnel cap (8) is arranged at the upper end of the recovery liquid tank (7). By adopting the structure, the solution can be effectively recovered, and the emission concentration can be reduced.

The invention relates to a pair of breathable shoes. Each breathable shoe comprises a shoe sole body, an air bag component and a groove. Each air bag component comprises an inlet pipe and at least one outlet pipe; an inlet check valve and an outlet check valve are respectively arranged in the inlet pipe and each outlet pipe; each shoe sole body is connected with a waist plate; an inlet passage communicated with the outside is arranged in each waist plate; each inlet passage is communicated with the corresponding inlet pipe; each shoe sole body comprises a half sole part, an arch part and a heelpiece part; each half sole part is provided with a release slot and an air bag; the outlet pipes on each air bag are communicated with the corresponding release slot; each inlet check valve and each outlet check valve are located at the corresponding heelpiece part. Air inlets of each breathable shoe are located on the corresponding waist plate far away from the ground, and therefore, the phenomenon that water or dust enters the inlet passages to cause the air bag components to be blocked can be effectively prevented, and the reliability is high. Each inlet check valve and each outlet check valve are arranged on the corresponding heelpiece part, so that the safety and the comfort are better; each air bag is arranged at the corresponding half sole part, and is capable of sucking and releasing more air to play a role of rapidly cleaning air in the shoes, so that the ventilation Efficiency of the interiors of the shoes is improved.

The present invention discloses a front suction / discharge type outdoor unit for a split type air- conditioner which is installed in an opening space of an outer wall of a building, for sucking outdoor air from the front surface, exchanging heat and discharging the heat-exchanged air. A pair of sirocco fans having a relatively large ventilation amount are used to send the outdoor air to condensers, and stable high efficiency BLDC motors are used to drive the sirocco fans. Even if the air is sucked or discharged to / from a restricted space, ventilation amount and efficiency can be increased to improve cooling capability and reduce abnormal noises.

The invention provides a high-pollution building space exhaust disinfection and purification system and method. The system comprises a pollution region negative pressure metal ventilation pipe, and any position of the pollution region negative pressure metal ventilation pipe is communicated to the inlet end of a high-resistance ventilation pipeline with a heat insulation and insulation layer. Theoutlet end of the high-resistance ventilation pipeline with the heat insulation and insulation layer is connected to the inlet end of an outdoor negative pressure metal ventilation pipe through an electric backflow prevention valve, and the outlet end of the outdoor negative pressure metal ventilation pipe is connected to an extraction opening of an efficient frequency conversion draught fan. A plurality of virus killing devices are sequentially arranged at the rear end of the efficient variable-frequency draught fan. By means of the system and method, air possibly containing viruses in a high-pollution building space is subjected to high-temperature disinfection and sterilization through an electric heating pipeline, then the air subjected to high-temperature disinfection and sterilization is guided to an outdoor multi-virus disinfection and sterilization device through the negative pressure pipeline to conduct diversified thorough disinfection and sterilization on the introduced air,and the viruses in the air in the high-pollution building space can be thoroughly removed.

The present invention relates to gas distributing mechanism of engine, and is especially one kind of four-valve gas distributing mechanism with two top set cams mainly for 125-175 cc displacement engine of motorcycle and motor tricycle. The four-valve gas distributing mechanism includes one gas intake duct with intake valve and one exhaust duct with exhaust valve on the cylinder head. It features the intake valve and the exhaust valve with separate clamping slot in the bar end, the spring holders set in the clamping slots, the conic blocks between the spring holder and the bar end, and the valve springs in holder. The present invention can raise gas exchanging efficiency effectively for complete burning.

A magnetoelectric generator includes a bowl-like flywheel (3) having a bottom portion (6) formed with ventilation holes (20), a plurality of permanent magnets (7) secured to an inner circumferential surface of the flywheel (3), a stator core (10) disposed within the flywheel (3) and having peripheral side surfaces facing the permanent magnets (7), and a coil assembly (11) implemented by winding an electric conductor on the core (10). Electricity is induced in the coil assembly (11) by AC magnetic field produced by rotating the flywheel (3). A peripheral edge portion of each ventilation hole (20) is formed with a projecting portion (21) by plastic deformation, which protrudes toward the coil assembly (11) for producing turbulent air flows internally of the flywheel (3) upon rotation of the flywheel (3).

The invention relates to the field of doors and windows, in particular to a photovoltaically powered ventilating window, which comprises hollow glass, a ventilating box and a battery bin, which are embedded in a window frame, wherein a solar battery is arranged in an inner cavity of the hollow glass; a sound absorption material fills the inner side of the box body of the ventilating box; a mosquito filter net, a high voltage electrostatic dust collection net and a direct-current cross flow fan are sequentially arranged in the ventilating box; the outer and inner walls of the ventilating box are provided with an air inlet and an air outlet which are staggered; an infrared receiver, a photovoltaic controller and a storage battery are arranged in the battery bin. The air entering through the air inlet has the quality obviously improved and the ventilating efficiency is high; meanwhile, the air inlet and the air outlet are arranged in a staggered way, a noise reduction effect is greatly improved, an indoor physical environmental requirement can be met, power for all the parts comes from a solar panel, the solar panel fully absorbs solar energy, the solar energy is converted into electric energy, and the photovoltaically powered ventilating window has the characteristics of safety, convenience, sustainability, environment friendliness and energy conservation.

A magnetoelectric generator includes a bowl-like flywheel (3) having a bottom portion (6) formed with ventilation holes (20), a plurality of permanent magnets (7) secured to an inner circumferential surface of the flywheel (3), a stator core (10) disposed within the flywheel (3) and having peripheral side surfaces facing the permanent magnets (7), and a coil assembly (11) implemented by winding an electric conductor on the core (10). Electricity is induced in the coil assembly (11) by AC magnetic field produced by rotating the flywheel (3). A peripheral edge portion of each ventilation hole (20) is formed with a projecting portion (21) by plastic deformation, which protrudes toward the coil assembly (11) for producing turbulent air flows internally of the flywheel (3) upon rotation of the flywheel (3).