157results about How to "Reduce air loss" patented technology

The invention provides a compound type cooking fume purifier with a coupling function. The compound type cooking fume purifier comprises a shell, wherein the shell is provided with an air inlet and an air outlet; a gas channel is formed between the air inlet and the air outlet; the gas channel is internally provided with a static electricity capturing unit and a catalytic absorption unit in sequence from the air inlet to the air outlet; the static electricity capturing unit comprises an ionization region and a capturing region; the catalytic absorption unit comprises a catalyst and a carrier for loading the catalyst; the catalyst comprises an active component and an auxiliary component; the active component is an oxide of a transition metal element; the auxiliary component is Al2O3 or TiO2. The cooking fume purifier is simple in structure, low in manufacturing cost, high in purification efficiency, compact in structure and long in service life and does not need to be frequently maintained; the catalytic absorption unit can be used for purifying upper-state cooking fume molecules stimulated by the static electricity capturing unit under a room temperature.

This invention discloses a fan turbine casing inletting wind from two sides including a front cover plate, a back cover plate and a circular middle shell connecting the two, a front air-inlet and a back air-inlet are set on them separately, and the projection of the center of the front one on the plane where the back cover places is coincident with that of the back one characterizing that a curved panel projecting downward is connected between the down edges of the two plates to shield the middle shell, so smoke can be led to the front and back air-inlets smoothly.

The invention provides a preparation method of a waterborne PVDF (Polyvinylidene Fluoride)-PVDF copolymer composite coating membrane. The method comprises the following steps: 1) preparation of PVDF-PVDF copolymer-ceramic mixed slurry: mixing and stirring deionized water, PVDF and a PVDF copolymer to obtain a uniform solution, adding a dispersing agent, mixing with mixed ceramic powder, uniformly stirring at the temperature of 30 to 50 DEG C, and performing ball milling for 0.5 to 2 hours to obtain the PVDF-PVDF copolymer-ceramic mixed slurry; (2) coating: coating one side or two sides of a base membrane with the PVDF-PVDF copolymer-ceramic mixed slurry prepared in the step 1) to form a waterborne coating, and drying in a three-stage drying oven at the temperature of 40 to 90 DEG C to obtain the waterborne PVDF-PVDF copolymer composite coating membrane. The preparation method has the beneficial effects that the swelling ratio of the membrane in electrolyte is increased, the electric conductivity of a lithium battery is increased, the internal resistance of the lithium battery is lowered, and the rate discharge performance and cycle performance of the lithium battery are improved.

The invention discloses an air guide mechanism and an air conditioner indoor unit. The air conditioner indoor unit comprises the air guide mechanism and a heat exchanger and a fan which are assembled in the air guide mechanism. The air guide mechanism comprises a casing, an air outlet frame, an air guide piece and a circumferential driving structure. An air channel and an air outlet communicated with the air channel are formed in the casing, the air outlet frame is assembled in the air channel of the casing and located at the position of the air outlet, and the air guide piece is connected with the air outlet frame through the circumferential driving structure in a rotating mode. The circumferential driving structure comprises a locating structure arranged between the air guide piece and the air outlet frame and a driving structure driving the air guide piece to rotate. The whole set of air guide device has less composition parts, and greatly simplifies structure design. On one hand, the air guide piece is stable in movement and small in noise; on the other hand, the air guide piece is small in air resistance, air quantity loss is small, the air supply angle is large, and the distance is longer.

The invention relates to the technical field of fire disaster ventilation and smoke exhaust, in particular to a fire disaster ventilation and smoke exhaust method for an underground station platform adopting subway full-closed station platform doors. The method comprises the steps that one of an upgoing side tunnel and a down side tunnel is selected as an auxiliary smoke exhaust tunnel; a row of smoke exhaust valves is arranged above the platform doors; the smoke exhaust valves on the side of the auxiliary smoke exhaust tunnel are opened for smoke exhaust; upgoing side interval tunnel fans anddown side interval tunnel fans are started for smoke exhaust; station tunnel heat exhaust fans are started for smoke exhaust; and station large system fans are started for smoke exhaust. According tothe fire disaster ventilation and smoke exhaust method for the underground station platform adopting the subway full-closed station platform doors, smoke generated during a fire disaster can be exhausted in time, the smoke exhaust efficiency is effectively improved, and the safety of personnel is guaranteed.

The invention relates to a cooling tower silencing structure. An air outlet silencer is arranged on the upper part of a cooling tower, an air inlet silencer is arranged on the lower part of the cooling tower, the air outlet silencer is of an arc-shaped flow guide shape, an expansion silencing area is formed between an air outlet of an axial flow fan and a fa?ade on a front platform of the cooling tower, between the arc-shaped flow guide shape, two side surfaces of the cooling tower and an upper platform of the cooling tower, a resistive silencing insert structure is formed by the air outlet part, the air outlet of the air outlet silencer backs noise sensitive spots, and the resistive silencing insert structure of the air outlet silencer at an air outlet part is a 30-degree oblique angle moulding. A labyrinth type silencing structure is formed in the air inlet silencer. The cooling tower silencing structure ensures that the loss of the exhausted air pressure and air quantity of the cooling tower is small.

The present invention provides an air bearing pallet comprising a network of tethers oriented and connected between the upper and bottom sheets of a plenum chamber, which cause a system of indentations to become formed in the bottom sheet when the plenum chamber is inflated. Perforations in the bottom sheet enable air to escape thereby generating an air film below the chamber within the predefined system of indentations. The size, shape, depth, bottom surface tension / stiffness, airflow through, quantity and location of the indentations can be varied in order to optimize lifting performance and efficiency and reduce system level losses over irregularities and gaps in the support surface.

The invention provides a preparation method for a waterborne PMMA composite coating diaphragm. The coating diaphragm is formed by coating one side or two sides of a polyolefin base membrane with mixed paste of modified PMMA and ceramic in one time; and the modified PMMA is obtained by performing crosslinking and modifying on the PMMA and a copolymer thereof by a crosslinking agent based on a certain proportion. The diaphragm is prepared from the mixed materials of the modified PMMA and the copolymer thereof and ceramic in a coating manner; and the coating layer only needs coating of one time, so that production cost is lowered, ventilation loss caused by thickness of the coating layer also can be lowered, and meanwhile, the thermal stability of the diaphragm is improved.

The invention discloses an air guide device which comprises an air guide piece support with a round air outlet, an air guide piece corresponding to the air outlet in position and capable of rotating around the axis of the air outlet, a driving mechanism arranged between the air guide piece support and the air guide piece and a locating device arranged corresponding to the air guide piece. When the driving mechanism drives the air guide piece to rotate to the preset position, induction signals are generated at the locating position. An air conditioner indoor unit is further disclosed. The whole air guide device has fewer parts, and the structure design is greatly simplified. On one hand, the air guide piece is stable in movement and small in noise; on the other hand, the air guide piece is small in air resistance, air quantity loss is small, the air supply angle is large, and the distance is longer.

The invention provides a wind guide device, a wind guide control method and an air conditioner. The wind guide device comprises a wind duct assembly and a wind door assembly, wherein the wind duct assembly is arranged in a shell, two wind wheels are mounted in the wind duct assembly, and the wind door assembly is mounted on the shell and comprises at least one sense-of-windless wind outlet plate for covering a wind outlet in the middle and at least one sliding door located at wind outlets in two sides, and at least one sense-of-windless wind outlet plate is provided with multiple through holes. According to the wind guide device, wind generated when the wind wheels operate is blown to users through the through holes in the sense-of-windless wind outlet plates, so that the output wind is gentle; it is avoided that the wind is directly blown to the users through the wind outlets and consequently the users feel uncomfortable, the use comfort of the users is improved, meanwhile the sense-of-windless wind outlet plates and the sliding doors are in cooperation and slide to different positions to open or close the wind outlet in the middle and / or the wind outlets in all the side faces, quick cooling or heating is achieved and the use comfort of the users is guaranteed while sense-of-windless wind output and conventional wind output can be achieved, and the use experience of the users is improved.

The invention discloses a volute for an extractor hood. A volute air flue is arranged in the volute. The volute is provided with a volute air inlet and a volute air outlet. The volute comprises a fixed shell and a movable shell. The movable shell can move between the closing position and the opening position relative to the fixed shell. When the movable shell is located at the closing position, the fixed shell is matched with the movable shell, and air in the volute air flue is allowed to be discharged out of the volute air outlet. When the movable shell is located at the opening position, the movable shell is staggered relative to the fixed shell, so that a volute circulation air outlet is limited between the movable shell and the fixed shell. The volute circulation air outlet is arranged to allow air in the volute air flue to be discharged towards the indoor part through the volute circulation air outlet. According to the volute for the extractor hood, the flowing distance of air when the extractor hood exhausts towards the indoor part can be shortened.

The invention discloses a method for ventilation-assisting roadway arrangement and surrounding rock stabilizing control in the later period of coal mining, belonging to a method for mine ventilating system optimization and roadway arrangement. The method comprises the steps of (1) determining and arranging section coal pillars of roadways for assisting ventilation namely air inlet or air return; (2) analyzing the stability of the section coal pillars; (3) optimizing roadway arrangement schemes in the section coal pillars; (4) determining a technical scheme for reasonable roadway supporting. Aiming at the problems that in the later period of coal mining, a ventilating line is long, ventilation resistance is great, and air loss is great, the method is characterized in that the ventilation-assisting roadways are arranged in the section coal pillars in a left area of a gob, so as to shorten the length of the mine ventilating line length and reduce air loss, and has the advantages of greatly shortening the ventilating line length and reducing air loss by arranging the ventilation roadways in the section coal pillars in the left area of the gob, meanwhile improving a resource extraction rate and increasing the economic benefit of an enterprise by more extracted coal in roadway construction, meeting the need of safe mine production, and achieving obvious technical and economic benefits.

The invention discloses a wireless handheld vacuum cleaner. A cup is located at the front end of the whole handheld vacuum cleaner, a handle, a motor and the cup are arranged in parallel in sequence,the cup adopts a central built-in air channel, an air inlet of the motor right faces an air outlet of the cup, dust enters from the central air channel of the cup, airflow directly enters the motor after coming out, and accordingly, the loss of air volume is reduced, and the central air channel of the cup is more beneficial to dust and air separation; the motor is located between the cup and the handle, so that cooling of the motor is facilitated; a battery pack is mounted externally and placed below the handle, and cooling and replacement of the battery pack are convenient; the battery pack is located at the rear end of the whole handheld vacuum cleaner, and the whole handheld vacuum cleaner has compact structure and balanced gravity center, and is operated by a user conveniently.

The invention provides an air conditioner, an axial flow fan and a stator blade of the axial flow fan. The stator blade of the axial flow fan comprises a blade body and a lug boss. Particularly, the blade body has a pressure surface and a suction surface. The pressure surface is concave. The suction surface is convex. The blade body is provided with a front edge and a rear edge. The lug boss is arranged at the rear edge of the blade body. The lug boss protrudes from the pressure surface of the blade body. The stator blade of the axial flow fan, provided by the invention, has the advantages that air flow at an air outlet of the axial flow fan can be straightened, the separation phenomenon generated at the air inlet of the axial flow fan can be prevented, trailing edge loss is reduced, and the purpose of reducing the kinetic energy loss of the air flow and the noise of the air flow are achieved.

The invention discloses an air guide device which comprises an air guide piece support with a round air outlet and an air guide piece corresponding to the air outlet in position and capable of rotating around the axis of the air outlet. The air guide piece comprises an annular outer frame and guide vanes arranged in the outer frame. The air guide device further comprises a locating piece arranged between the air guide device support and the outer frame. The locating piece is used for locating the air guide piece radially to enable the air guide piece to rotate around the axis of the air outlet. An air conditioner indoor unit is further disclosed. Air guide can be conducted by adopting the air guide piece capable of rotating continuously. The composition of the whole air guide device has fewer parts, and the structure design is greatly simplified. On one hand, the air guide piece is stable in movement and small in noise; on the other hand, the air guide piece is small in air resistance, air quantity loss is small, the air supply angle is large, and the distance is longer.

The invention discloses an extractor hood. The extractor hood comprises a machine shell, a volute fan and a rectifying device; the volute fan is arranged in the machine shell, and the machine shell is internally provided with a flue gas channel communicated with a volute gas inlet; the rectifying device is arranged in the flue gas channel and is opposite to the volute gas inlet; a rectifying flue is limited between the rectifying device and the volute gas inlet, and the rectifying device is arranged to be adjustable relative to the position of the volute gas inlet so as to increase or decrease the flue gas flow inside the rectifying flue in the unit time; and according to the extractor hood, the rectifying device is arranged to be adjustable relative to the position of the volute gas inlet so as to increase or decrease the flue gas flow inside the rectifying flue in the unit time, and therefore cyclone, steaming around and the noise generated before lampblack is guided into a volute are avoided; and accordingly, the working noise and the air amount losses of the extractor hood are effectively reduced.

The invention provides an air guide device of an air conditioner. The air guide device comprises a plurality of flexible slats arranged in parallel, a driving connecting bar, a driven connecting bar, a drive mechanism which drives the driving connecting bar to move side to side, and a limit mechanism used for limiting flexural deformation caused by leftward or rightward swing of the flexible slats. Each flexible slat has an intake end, a leeward end and first and second sides arranged between the intake end and the leeward end; the second side of the intake end is fixed to an air outlet; the second side of the leeward end is rotatably connected to the driving connecting bar. The driven connecting bar is rotatably connected to the flexible slats and transmits flexural deformation to the flexible slats. Compared with rigid slats, the flexible slats can be used with the limit mechanism to provide a wider range of leftward or rightward air guidance, and the demand for air supply from both sides of the air conditioner is met; the flexible slats are bendable, so that air volume loss is reduced. The invention further provides the air conditioner comprising the air guide device.

The invention discloses a hanging machine and an air conditioner with the same. The hanging machine comprises a machine shell, a heat exchanger and a counter-rotating fan, wherein a wall hanging partused for be hung on a wall is arranged on the machine shell, an air inlet and an air outlet are formed in the machine shell, the heat exchanger is arranged in the machine shell, the counter-rotating fan is arranged in the machine shell, airflow circulates between the air inlet and the air outlet, the counter-rotating fan comprises a first wind wheel and a second wind wheel, the first wind wheel isan axial flow wind wheel or an oblique flow wind wheel, the second wind wheel is an axial flow wind wheel or an oblique flow wind wheel, and the rotation direction of the first wind wheel in which the first wind wheel blows the airflow towards the preset direction is opposite to that of the second wind wheel in which the second wind wheel blows the airflow towards the preset direction. Accordingto the hanging machine, long-distance air supply, wide-angle air supply, soft wind feeling air supply or wind-free feeling air supply can be realized, and the air volume loss is small.

The invention relates to the technical field of vehicle automatic transmission development, in particular to a brake for an automatic transmission. The brake for the automatic transmission comprises a box body, pistons, a hinge pin, a sealing ring, friction plates, steel sheets, disk springs, pressing plates and bolts. The steel sheets are connected with the box body through the hinge pin. The friction plates are connected with a rotating shaft of a component to be braked through internal splines. The disk springs are arranged between the steel sheets, the steel sheets are connected with the box body through the hinge pin to transmit torque, and therefore when the torque is transmitted, resetting of the pistons is achieved through the disk springs. In addition, the purpose that the intervals of the frication plates are equal is guaranteed through the disk springs, so that the idler loss of the friction plates is effectively reduced, the efficiency of the automatic transmission is improved, and the service life of the brake is prolonged. When the brake for the automatic transmission is used, separation and reunion of the brake are achieved through oil blast and oil discharging of an oil cylinder, and therefore manipulation of the automatic transmission is achieved.

The invention relates to a high-speed double-clamping rotary type corrugated machine which comprises a rack, wherein the rack is provided with a corrugated roller device, the corrugated roller device comprises a corrugated roller frame with the center rotatably connected with the rack, two ends of the corrugated roller frame are respectively provided with a supporting ring, the peripheries of the two supporting rings are provided with supporting rollers and locking mechanisms which are arranged on the rack, two pairs of corrugated rollers which are symmetrical along a line of centers of the two supporting rings are arranged in the corrugated roller frame, a rotation driving mechanism is connected outside one supporting ring, a pair of corrugated rollers at a working position is connected with a main power device in a transmission way through a main clutch mechanism, the other pair of corrugated rollers at a standby position is connected with an auxiliary power device in the transmission way through an auxiliary clutch mechanism, and the pair of corrugated rollers at the working position is connected with an air suction device. The high-speed double-clamping rotary type corrugated machine is provided with two pairs of corrugated rollers with different corrugations, and the corrugated rollers with any one corrugation can be fast replaced in 2 minutes; and the corrugations can be replaced, and the corrugated machine is stable and reliable by adopting the rotary type structure and hydraulic control.

The invention relates to a concave-convex structure filter screen device of a range hood. The concave-convex structure filter screen device at least comprises a concave-convex structure filter screen and a filter screen frame, wherein a concave-convex structure of the concave-convex structure filter screen is formed by connecting a single or a plurality of strip-type convex sections with adjacent planar sections or adjacent curved sections, by connecting a single or a plurality of ring-shaped convex sections with the adjacent planar sections or the adjacent curved sections, or by arranging a single or a plurality of convex closures or lug bosses on a plane or a curved surface according to a certain rule; the concave-convex structure filter screen at least comprises any structure of a metal pore plate filter screen, a metal screen plate filter screen and a metal gauze filter screen, and a metal filter plate structure comprising flanging ventilation holes; the concave-convex structure filter screen is large in surface area and ventilation area, and is favorable for oil smoke purification and reduction of air loss; the three-dimensional ventilation holes of the concave-convex structure filter screen are favorable for separation, attachment, condensation and purification of oil smoke; and the concave-convex structure filter screen can ensure that the structural rigidity of the filter screen is multiplied, and is favorable for reducing the material consumption.

The invention discloses a filtration system for separation of whirlwind and dust storage, a hand-held vacuum cleaner and a rod-type vacuum cleaner. Through relatively independent arrangement of a duststorage chamber and a dust-air separation device, the dust-air separation device is unlikely to be blocked, the dust storage space of a dust cup is increased, and the dust collection amount is increased.

The invention provides an air guide device of an air conditioner. The air guide device comprises a plurality of flexible slats arranged in parallel, a driving connecting bar, a driven connecting bar, a drive mechanism which drives the driving connecting bar to move side to side, and a limit mechanism used for limiting flexural deformation caused by leftward or rightward swing of the flexible slats. Each flexible slat has an intake end, a leeward end and first and second sides arranged between the intake end and the leeward end; the second side of the intake end is fixed to an air outlet; the first side of the leeward end is rotatably connected to the driving connecting bar. The driven connecting bar is rotatably connected to the flexible slats and transmits flexural deformation to the flexible slats. Compared with rigid slats, the flexible slats can be used with the limit mechanism to provide a wider range of leftward or rightward air guidance, and the demand for air supply from both sides of the air conditioner is met; the flexible slats are bendable, so that air volume loss is reduced. The invention further provides the air conditioner comprising the air guide device.

The invention provides a micro-module data center used for solving the problem that an existing data center micro-module needs external circulation heat dissipation, and is low in refrigeration efficiency, large in occupied area and difficult to assemble; the micro-module data center disclosed in the invention comprises a comprehensive cabinet and at least one set of IT equipment cabinet; the comprehensive cabinet comprises a cabinet body with a containing cavity, a power supply assembly, a monitoring alarm assembly and an air conditioner; a front door body is arranged on the front side of the cabinet body, and a rear door body is arranged on the rear side of the cabinet body; a closed space is defined by the cabinet body, the front door body and rear door body; the air conditioner is arranged at the bottom of the containing cavity; a cold air channel is formed between the air conditioner and the front door body, and a hot air channel is formed between the air conditioner and the rear door body; the air conditioner can draw cold air from the air conditioner to the cold air channel, and can draw the hot air from the hot air channel to the air conditioner; and according to the micro-module data center, the isolation design of closing the cold and hot channels is adopted, so that gas mixing is avoided, the return air temperature is greatly improved, the refrigeration efficiency is improved while the PUE is reduced, the space is saved, and the rapid arrangement, the visual display and the intelligent management are achieved.

The invention discloses a novel oil screen. An outer oil screen is positioned outside an inner oil screen; the inner oil screen and the outer oil screen are provided with first ventilation holes and second ventilation holes respectively; a side wall of each first ventilation hole is provided with a first turned edge which forms a set included angle with the first ventilation hole; the inner periphery of each second ventilation hole is provided with a second turned edge which faces the inner oil screen and has a closed ring shape; the first ventilation holes and the first turned edges corresponding to the first ventilation holes completely cover just above the second ventilation holes and the second turned edges corresponding to the second ventilation holes; and the lower end of each first turned edge is just positioned between two adjacent second turned edges corresponding to the outer oil screen. Through the novel oil screen, air flow has a smooth flow line during flowing, and the loss of air quantity is small; the air flow hardly forms eddy current when passing through the inner oil screen and the outer oil screen, so the noise is low; the oil smoke is mainly processed by a surface filtration method, so the gas can contact larger areas of the inner oil screen and the outer oil screen during movement to achieve a good oil smoke filtering effect; and since both the inner oil screen and the outer oil screen are at a certain angle with the horizontal plane, oil drops can smoothly flow into an oil collection cup.

The invention discloses a wind guide ring structure, an air conditioner outdoor unit and an air conditioner. The wind guide ring structure comprises a wind guide ring which is internally provided witha wind passing channel. A protruding structure is arranged on the inner wall of the wind passing channel, and a plurality of noise reducing holes are formed in the outer portion of the protruding structure at intervals. The wind guide ring structure can reduce air amount loss, and effective work of blades is higher.

The invention discloses an extractor hood. The extractor hood comprises a rack assembly, a spiral case assembly, a guiding plate assembly and a rectifying part, wherein the rack assembly is internally provided with a cavity room, the spiral case assembly is arranged in the cavity room, the guiding plate assembly is arranged below the rack assembly and provided with a smoke outlet, and the rectifying part comprises a body and at least one rectifying plate connected with the body; and a through hole corresponding to an air inlet of the spiral case assembly is formed in the body, and the rectifying part is arranged in the cavity room, so that a rectifying channel is provided between the smoke outlet and the air inlet of the spiral case assembly. According to the extractor hood, smoke can be guided to the smoke outlet through the guiding plate assembly, passes through the rectifying channel to flow to the air inlet of the spiral case assembly and is further exhausted out, in the process of smoke exhausting, the smoke is advantageously prevented from directly impacting the spiral case assembly through the rectifying assembly, the air loss can be reduced, and air pressure of the whole machine is enhanced to reduce noise.

The invention relates to a soil culture device with a small air collector. The soil culture device comprises a culture dish, a pored cover and an air collector, wherein the pored cover is arranged on the upper part of the culture dish, and the pored cover is connected with the air collector; the culture dish is arranged as a hollow container with a sealed bottom, and an external thread is arranged on an outer wall of the upper part of the culture dish; the pored cover is arranged as a hollow container with a sealed top, and an internal thread which is in thread fit with the external thread of the culture dish is arranged on an inner wall of the lower part of the pored cover; an air hole is formed in the outer wall or top of the pored cover, and an exhaust pipe with a switching valve is hermetically arranged in the air hole; the air collector is arranged as a hollow container with a sealed bottom, an air rubber plug is arranged at the top of the air collector, and an air collecting hole is formed in the side wall of the air collector; and an air guide pipe with a switching valve is hermetically arranged in the air collecting hole. The soil culture device can reduce measurement errors and lower test cost.

The invention discloses an air supply device and an air conditioner thereof. The air supply device comprises an air supply shell and a fan blade arranged in the air supply shell, wherein the air supply shell is provided with double air supply ports; wind screens moving along the periphery of the fan blade to adjust the air outlet direction of the air supply device are arranged in the air supply shell. The air supply device has the advantages of simple structure, high overall comfort, avoidance of flow field disturbance in an air channel, low noise and small air amount loss.