34results about How to "Improve air uniformity" patented technology

The invention discloses an indoor unit of a cabinet type air conditioner. The indoor unit comprises a main body, wherein an opening is formed in the top of the main body; a top air outlet device is arranged in the opening, and comprises at least two annular air guide bodies vertically arranged; a non-through cavity is formed between the annular air guide bodies at the top layer; a through cavity is formed between the rest annular air guide bodies; and an annular air outlet way for exhausting air in the main body is formed between adjacent two annular air guide bodies. As the top air outlet device having the annular air outlet way is arranged at the top of the indoor unit, the problems of small air feeding angle and high air volume loss in an indoor unit of a traditional cabinet type air conditioner are effectively solved.

The invention discloses a variable cross-section flow rectifier for square column wall surface attached type uniform air feeding. The variable cross-section flow rectifier for square column wall surface attached type uniform air feeding comprises an air inlet pipe and a shell, and further comprises a variable cross-section air feeding passage. The shell is a concentric-square-shaped barrel with a sealed upper end, and the lengths of the four sides of the barrel are the same. A square column is sleeved with the shell and the inner wall of the inner barrel of the shell is closely attached to the outer wall of the square column. The air inlet pipe is installed at the upper end of the variable cross-section air feeding passage and communicated with the variable cross-section air feeding passage. The axis of the air inlet pipe and the axis of the shell perpendicularly intersect. The variable cross-section air feeding passage is barrel-shaped and located in the upper half of the shell, and the lower end port of the variable cross-section air feeding passage is communicated with the shell. The variable cross-section flow rectifier for square column wall surface attached type uniform air feeding can improve the indoor air quality of buildings and hot comfort and health of people, and is applicable to a building ventilation air-conditioning system which comprises a square column structure and realizes attached air feeding through a concentric-square-shaped seam air port.

The invention relates to a metro vehicle compound air supply system. The metro vehicle compound air supply system comprises a main air duct and branch air ducts arranged at two sides of the main air duct in a spaced mode. An air inlet connected with an air outlet of an air conditioning unit is formed in the top of the main air duct. Longitudinal partition plates with ventilation openings are symmetrically arranged inside the main air duct in the longitudinal direction to divide the main air duct into a main air duct cavity and lateral air duct cavities. Transverse partition plates are arrangedinside the lateral air duct cavities to divide the lateral air duct cavities into a plurality of static pressure cavities. Middle-roof air outlets are formed in the bottoms of the static pressure cavities. The branch air ducts are connected with the outer sides of the static pressure cavities in the corresponding positions. According to the compound air supply system adopting a multi-angle air supply method combining top supply and lateral supply, the flow velocity of the air in the middle of a compartment is lowered, and the flow velocity of the air in door areas and window areas is improved. Splitter plates are arranged inside the static pressure cavities and at the outlets of the branch air ducts, so that the air outlet uniformity of each single opening is improved. Therefore, the metro vehicle compound air supply system improves the comfort of passengers in the middle area, door areas and window areas of the metro compartment and the air outlet uniformity of each single opening, and meanwhile installation of the air ducts is convenient.

The invention discloses an intelligent uniform air supply device and method. The intelligent uniform air supply device comprises an air supply pipeline and adjustable air stop devices arranged in theair supply pipeline. The air supply pipeline is provided with a plurality of air outlets, and the adjustable air stop devices are arranged at the air outlets and are adjustable in angle. At least oneof the air outlets is provided with an anemometer, and the anemometer and the adjustable air stop devices are connected with a controller. The controller controls the angles of the adjustable air stopdevices according to the collected air speed and the air speed set value so that uniform air supply can be achieved.

The invention discloses an air conditioner indoor unit and a wind shield plate. The air conditioner indoor unit comprises a machine body and the wind shield plate, wherein an air outlet is formed in the machine body, the wind shield plate is rotationally arranged at the air outlet part for opening and closing the air outlet, a plurality of ventilation grooves penetrating through the thickness of the wind shield plate are formed in the wind shield plate, the ventilation grooves are divided into a plurality of first ventilation groove groups and a plurality of second ventilation groove groups in the length direction of the wind shield plate, the first ventilation groove groups comprise a plurality of mutually parallel ventilation grooves, the second ventilation groove groups comprise a plurality of mutually parallel ventilation grooves, the extending direction of the ventilation grooves in the first ventilation groove groups is vertical to the extending direction of the ventilation grooves in the second ventilation grooves on the surface of the wind shield plate. The air conditioner indoor unit according to the embodiment of the invention has the advantage that the wind can be prevented from being directly blown onto the body of a user.

The invention provides a cross flow blade. The cross flow blade comprises multiple middle-section blades coaxially connected, wherein stagger angles are respectively formed between any adjacent two middle-section blades; and the deflection directions of the stagger angles between the blades with the same structure in at least one set of adjacent middle-section blades are oppositely arranged. The deflection directions of the stagger angles between one set of the middle-section blades in the cross flow blade are set as directions opposite to original deflection directions, the blades of the middle-section blades of the cross flow blade in the same generatrix position are deviated from the generatrix to return to the generatrix position, and the blades of the cross flow blade with the same structure are distributed near the generatrix of the cross flow blade in the length direction of the cross flow blade, so that the problem of air outlet ununiformity of the cross flow blade in the same generatrix position is solved to a certain extent, the air outlet uniformity of an indoor unit is improved, and airflows blown to a worn tongue prevent products from generating instable abnormal noise to improve the tone quality of the indoor unit. The invention further provides an air conditioner.

The invention discloses a centrifugal wind wheel and an air conditioner indoor unit. The centrifugal wind wheel comprises a blade seat, a first air inducing ring and a plurality of fan blades connecting the blade seat with the first air inducing ring. The centrifugal wind wheel further comprises a second air inducing ring, the second air inducing ring is located between the blade seat and the first air inducing ring, and the fan blades penetrate through the second air inducing ring to be connected with the second air inducing ring. The second air inducing ring is provided with a first end opening and a second end opening, wherein the first end opening and the second end opening are formed oppositely. The first end opening of the second air inducing ring is close to the blade seat, and thediameter of the second air inducing ring is gradually reduced in the direction from the first end opening to the second end opening. By means of the centrifugal wind wheel and the air conditioner indoor unit, the air-out uniformity of the centrifugal wind wheel is improved.

The invention discloses a uniform air delivery duct for a square cabin based on adjustable deflectors. The uniform air delivery duct comprises an air duct body (1) with a uniform section, an air inlet(2) is formed in one end of the air duct body (1), and the other end of the air duct body (1) is closed; a plurality of air outlets (3) are sequentially formed in the air duct body (1) in the air flow direction, the angle-adjustable deflectors (6, 7 and 8) are arranged on the portions, between the adjacent air outlets (3), in the air duct body (1) respectively, and the total heights of the deflectors are progressively increased in sequence in the air flow direction. The uniform air delivery duct for the square cabin based on the adjustable deflectors is high in air outlet uniformity, low in aerodynamic noise and easy to process and install.

The invention discloses an urban rail metro vehicle ceiling trim lifting structure which comprises a small ceiling piece. A lifting sectional material is connected to the position below the small ceiling piece and is integrally of a cavity structure. The cross section of the lifting sectional material is in a Z shape. C-shaped installation sliding grooves are formed in the upper portion and the lower portion of an upper cavity, the sliding groove with an upward opening is a lifting structure installation point, and the sliding groove with a downward opening is a lamp installation point. Two C-shaped installation sliding grooves with downward openings and a clamping groove are formed in the bottom of a lower cavity, the sliding groove in one end serves as a grille installation point, the sliding groove in the other end serves as a middle top installation point, and the clamping groove for insertion of a grille is further formed in the bottom layer. By the adoption of the urban rail metro vehicle ceiling trim lifting structure, a lamp middle top board, the grille and the like are directly lifted to the lifting structure without switching, and the installation process is simplified; weight is reduced, the weight of a vehicle is effectively reduced, and energy is saved; the machining amount is reduced, and machining cost is saved; and the sectional material only needs to be installed at one point in the width direction of the vehicle, and installation points can be arranged in the length direction of the vehicle according to force analysis.

The invention discloses a wide porous tuyere structure. The wide porous tuyere structure comprises a flow guide cavity, wherein the width of the air discharging end of the flow guide cavity is greater than that of the air intake end of the flow guide cavity, and a wide air discharging plate is arranged at the air discharging end of the flow guide cavity; the wide air discharging plate is provided with a through hole penetrating through the plate face of the wide air discharging plate, the through hole comprises multiple sets of air discharging holes, and the multiple sets of air discharging holes are distributed in the width direction; and the air intake end of the flow guide cavity is communicated with an air uniformizing cavity. According to the wide porous tuyere structure, the air intake end of the flow guide cavity is connected with the air uniformizing cavity, and the air uniformizing plate is arranged in the flow guide cavity, so that the air discharging uniformity of tuyere can be improved, and a battery pole piece can be uniformly dried and blown. Besides, the air discharging plate of the flow guide cavity is designed into the wide air discharging plate, and the multiple groups of air discharging holes are formed in the wide air discharging plate, so that the air discharging area is increased, and the drying quality and efficiency of the battery pole piece can be effectively improved.

The invention discloses an axial classification combustor. The axial classification combustor (10) comprises a combustion chamber, wherein the combustion chamber comprises a main combustion area (17) and a secondary combustion area (18); the main combustion area (17) is arranged at the upstream section of the combustion chamber; the secondary combustion area (18) is arranged at the downstream section of the combustion chamber and is axially connected with the main combustion area (17); a main nozzle (16) is formed at one end, away from the secondary combustion area (18), of the main combustion area (17); the main nozzle (16) faces the main combustion area (17) and is connected with a primary fuel and air mixed channel (15); a secondary nozzle (23) having at least one micro-mixed nozzle structure is arranged on the wall face of the secondary combustion area (18) in the radial direction; the secondary nozzle (23) is connected with a secondary air pipeline (24) and a secondary fuel pipeline (25); and the change trend of a secondary equivalence ratio of the secondary combustion area (18) and the change trend of a secondary load ratio are contrary. According to the axial classification combustor disclosed by the invention, emission of low NOx under the high load is realized, and the flexibility of load adjustment is improved.

The invention relates to a method for fabricating fiber used for super bright high strength sewing threads, comprising the following technique procedures: mixing and stirring raw materials terephthalic acid and glycol followed by entering into a primary esterification reactor and a second esterification reactor in sequence and then entering into a primary polycondensation reactor, a second polycondensation reactor and a final polycondensation reactor, and finally carrying out spinning, cooling, winding, filament holding, bundling, pulling, tension hot molding, rolling, loose hot forming, cutting and packaging to prepare the fiber used for super bright high strength sewing threads; the second esterification reactor is added with diglycol, the spinning temperature is 300-305 DEG C, the cooling adopts a tertiary rectifying blower to carry out wind cooling, wherein, the air entering into the tertiary rectifying blower is clean air which is treated by de-dusting by a micro fog water film de-dusting chamber; and the micro fog water film de-dusting chamber is provided with two rows of water fog spraying to each other. The invention do not use inorganic additive such as barium sulfate or titanium dioxide, thus not only ensuring the gloss effect of the fiber, but also satisfying the requirement on producing high speed sewing thread strength.

The invention provides an inner fan rotating speed control method and device and an air conditioner. The method comprises the steps of receiving an inner fan rotating speed control instruction input by a user; after the air conditioner is started, receiving a segmented air supply mode setting instruction input by the user; controlling the air conditioner to supply air in the segmented air supply mode; according to the air outlet area ratio and the first rotating speed of an inner fan, determining the second rotating speed of the inner fan corresponding to the segmented air supply mode, wherein the air outlet area ratio is the ratio of the air outlet area in an open state in the segmented air supply mode to the air outlet area in the open state in a full-open air supply mode; and controlling the inner fan of the air conditioner to operate at the second rotating speed of the inner fan. According to the embodiment of the invention, the rotating speed of the inner fan in different segmented air supply modes can be adjusted, so that the air outlet uniformity is improved, the noise values of the different segmented air supply modes are kept at a similar level, and the user experience is improved.

The invention discloses a compressing mechanism for a high-efficiency air filter. The compressing mechanism for the high-efficiency air filter comprises a box body and a compressing device which is arranged in the box body, and is characterized in that the compressing device comprises at least one pre-tightening structure, a pressing frame for bearing a filter, and a plurality of compensating elastic pieces which are respectively positioned below the four corners of the pressing frame, wherein the pre-tightening structure is positioned below the pressing frame and comprises a driving part and a pushing part which is connected with the driving part; the pushing part prop against the pressing frame, and has the freedom degree for pushing the pressing frame to move through the driving part; the freedom degree distance is in clearance fit with a gap between the filter and the top cover of the box body; the compensating elastic pieces are arranged between the bottom of the box body and the pressing frame; the distance between the freedom degree and the compression height is greater than the freedom degree distance of the pushing part. According to the compressing mechanism for the high-efficiency air filter, the surface compression is realized through the arrangement and the distribution of compensation elasticity; pressing force is provided durably; the sealing performance is guaranteed; the service life is prolonged.

The invention discloses an air curtain type display cabinet. The air curtain type display cabinet comprises a base, a supporting base, an air duct assembly, a refrigerating system, an inner air duct and a first air supply mechanism, the air duct assembly comprises an inner air duct assembly body and an outer air duct assembly body, and the inner air duct assembly body comprises a partition plate,a first air inlet, a first air outlet and an air guide plate. The outer air duct assembly comprises a main plate, a side plate, a second air inlet, a second air outlet and a second air supply mechanism; air supplementing holes are formed in the bottoms of supporting columns, and heat dissipation holes are formed in the base. Compared with the prior art, the air duct assembly is arranged at the topof the cabinet body, the first air supply mechanism conveys cold air to the air duct assembly, the cold air is evenly distributed through the partition plate and then flows out downwards from the first air outlet to form an air curtain, and the air outlet uniformity of the air curtain is greatly improved.

The invention discloses a hexagonal volute. The hexagonal volute comprises a left side plate, a right side plate and a wrapping plate combined with the left side plate and the right side plate to forma volute, wherein a folding structure is arranged on the position, which is located at the air outlet side of the volute, of the wrapping plate; the folding structure on the wrapping plate is combined with the two side plates to form a hexagonal structure on the air outlet side; and the air outlet of the volute is formed by the hexagonal structure in a surrounding manner. According to the hexagonal volute disclosed by the invention, the folding treatment is carried out on the wrapping plate and the wrapping plate is combined with the two side plates to form a hexagon, so that compared with atraditional volute, the hexagonal volute has the advantage that the uniformity of the outlet air is obviously improved, the loss of the air volume is reduced and the air flow noise is reduced; and inthe meantime, the wrapping plate and the left and right side plates are connected in an insertion manner at oblique angles, the center line of the air outlet of the volute is basically coincident withthe center line of the volute and an external air pipe and equipment can be basically centered, so that the installation space is effectively reduced and the cost is saved.