129results about How to "Good air supply" patented technology

A convection fan (410) is installed at an end surface (436) of a circular truncated cone-shaped projecting portion (430) projecting from the plate portion (420) of a convection fan duct (401). A portion (460) folded back toward the rear side is formed on the convection fan (410). The portion (460) is positioned on the side of the plate portion (420) of the convection fan duct (401) with respect to the end surface (436) of the circular truncated cone-shaped projecting portion (430) and is positioned laterally to the circular truncated cone-shaped projecting portion (430).

The invention relates to an indoor unit of an air conditioner. The indoor unit comprises a fan and a heat exchanger which are arranged in a shell body; the shell body is provided with an air inlet and an air outlet; an air channel is arranged in the shell body; the fan is arranged in the air channel; and the fan is an oblique-flow fan. The oblique-flow fan comprises a wheel hub, a plurality of fan blades, a motor and a driving shaft, wherein the motor is used for driving the oblique-flow fan to rotate, and the driving shaft is used for connecting the motor with the wheel hub; the diameter of the air inlet side of the wheel hub is relatively small; the diameter of the air outlet side of the wheel hub is relatively big; and the fan blades are arranged at the windward side of the wheel hub. A volute is arranged on an internal wall face corresponding to the wheel hub and the fan blades of the oblique-flow fan and is fixedly arranged on the internal wall of the shell body. A gap is arranged between the volute and the internal wall of the shell body. An insulating layer or noise-absorbing layer is filled in the gap. A wind wheel cover encircling the fan blades is arranged among the top faces of the fan blades, and the lower part of the wind wheel cover is small and the upper part of the wind wheel cover is big. An inlet air guide ring is arranged at the air inlet of the oblique-flow fan. The indoor unit of the air conditioner has the characteristics of simple and reasonable structure, flexibility in operation, and good air supply effect.

The invention provides a wall-mounted air conditioner indoor unit which comprises a shell, an air outlet channel and a flow guide block. An air outlet is formed in the lower portion of the front sideof the shell. The air outlet channel is arranged in the shell and provided with an upper air channel wall and a lower air channel wall. The outlet end of the air outlet channel communicates with the air outlet. The flow guide block is arranged at the air outlet in the mode that the flow guide block can controllably and horizontally move between the upper air channel wall and the lower air channelwall, and therefore, an air outlet area is adjusted to be a first air outlet area located on the upper portion of the flow guide block and / or a second air outlet area located on the lower portion of the flow guide block. The wall-mounted air conditioner indoor unit is provided with the flow guide block capable of horizontally moving, the air outlet area of the air outlet can be adjusted flexibly,zoned air supply with controllable air volume and air direction is achieved, thus, great air circulation in a room is controlled, and the refrigerating speed and the heating speed are increased.

The invention is suitable for the technical field of an air conditioner, and discloses an air conditioner and an air supplying method of the air conditioner. The air conditioner comprises a casing and a heat exchanger arranged in the casing, wherein an air inlet is formed in the casing; the casing is provided with an air hole penetrating through the casing; an air outlet which is used for blowing out the airflow to enable the negative pressure to be generated at the air hole is formed in the inner wall of the air hole; an airflow generating device which is used for driving the airflow to enter into the casing from the air inlet and discharging the airflow out the casing from the air outlet after the airflow flows through the heat exchanger is arranged in the casing; the air hole is positioned in one side of the airflow generating device. The air supplying method of the air conditioner adopts the air conditioner. By adopting the air conditioner and the air supplying method of the air conditioner, the aerodynamics theory is used, and an air supplying effect having performance many times higher than the performance of the air inlet and the air outlet is formed; the energy efficiency utilization is high; the air supplying effect is excellent; the air output is stable and uniform; people feel comfortable; the energy-saving and environment protection effect of the air conditioner is excellent.

The invention provides a fresh air ventilator and a control method thereof. The fresh air ventilator comprises an indoor unit, and the indoor unit comprises an indoor unit shell, a full heat exchangecore body and a temperature-humidity adjusting part. The indoor unit shell is provided with a mounting cavity, the full heat exchange core body is arranged in the mounting cavity and matched with a partition assembly to divide the mounting cavity into a fresh air way and an air return way, and a circulating control assembly for controlling communication or isolation of the fresh air way and the air return way is arranged on the partition assembly. The temperature-humidity adjusting part is arranged in the fresh air way and can adjust the gas temperature and / or humidity. The fresh air ventilator can adjust the temperature and / or humidity of fresh air while delivering the fresh air, and thus the user requirement is met.

The invention discloses an air conditioner for a kitchen, comprising an indoor unit and an outdoor unit and a fresh air hole (9), wherein the indoor unit comprises an air supply outlet (1), a fan (2) and an indoor heat exchanger (6), the outdoor unit comprises an outdoor heat exchanger (5), a compressor (7), an expansion valve (8), an air inlet (3) and an air outlet (4), and the outdoor heat exchanger (5) is communicated with the indoor heat exchanger (6), the compressor (7) and the expansion valve (8); the air inlet (3) is communicated with the air outlet (4) by virtue of the outdoor heat exchanger (5); the fresh air hole (9) is arranged on the indoor unit and is communicated with fresh air outside, and the fresh air hole (9) is sequentially communicated with an air circulation hole of the indoor heat exchanger (6), the fan (2) and the air supply outlet (1). When the air conditioner for the kitchen is used for a long time, a filter screen and the indoor heat exchanger can be difficultly blocked by lampblack, and health of a kitchener can be guaranteed.

The invention is applicable to the technical field of air conditioners and discloses a ceiling air conditioner and an air supplying method using the same. A wind wheel forwards blows out airflow from an air outlet in the side wall or periphery of each wind tunnel, the airflow can carry the adjacent airflow to move forward together while being blown out forwards from the air outlet along the axial direction of the wind tunnel, so that negative pressure is formed in the wind tunnel; under the pumping action of negative pressure, air at the rear part of the wind tunnel is pumped forward so as to enter through an opening in the rear end of the wind tunnel, pass through the wind tunnel and flow out from an opening in the front end of the wind tunnel, so that the air supplying effect of an airflow center is enhanced; furthermore, air around the wind tunnel is supplemented under the action of negative pressure, and the central airflow drives the surrounding airflow to flow forward together, so that the air supplying range is enlarged, an air supplying effect which is at least multiple times that of the air inlet capacity of the air inlet is formed, the energy efficiency utilization ratio is high, a lot of cold air or hot air is prevented from being directly blown to the head of a user and further causing discomfort of the user, the air supplying effect is good, and the comfortable degree of a human body can be improved.

The invention belongs to the technical field of air ducts, and discloses an air duct system, an air supply method of the air duct system and a fan and an air conditioner with the air duct system. An air flow channel is divided into at least two sub channels by air tunnel portions, wind wheels suck air flow in from air inlets, the air flow is made to flow through a heat exchanger and then made to be blown out forwards from air outlets located on the inner side or the periphery of the air tunnels, the air tunnels are front-back through tunnels, air enters an air inlet portion from the air inlets, flows to squeezing portions, then is divided into at least two streams under the effect of the air tunnel portions and then is blown out from the air outlets, air blown out from the air outlets enables the front sides of the air tunnels to form negative air pressure, and air at the rear portions of the air tunnels is sucked forwards and flows out from front end openings of the air tunnels. The air supply effect which is at least multiple times the air inlet capacity of the air inlets is formed through the principles of the aerodynamics, the energy efficiency utilization rate is high, the air supply effect is good, and the energy saving and environment protection effects are good.

The invention belongs to the technical field of air ducts, and discloses an air duct system, an air supply method of the air duct system and an air conditioner with the air duct system. Air flow blown out from all air outlets flows forwards to enable negative pressure regions to be formed on the front sides of all air tunnels, and under the effect of all the negative pressure regions, air on the rear sides of the air tunnels is sucked to penetrate through the air tunnels, so that the air is blown out forwards with the air flow blown out from the air outlets. Due to the fact that air has certain viscosity, when the air flow is blown out from the air outlets, the air flow carries adjacent air flow to flow forwards together, the air supply effect at the air flow center is enhanced, moreover, air around the air tunnels is supplemented due to the effect of negative pressure, the air supply range is expanded, the air supply effect which is at least multiple times the air inlet capacity of air inlets is formed through the principles of the aerodynamics, the energy efficiency utilization rate is high, the air flow does not need to be cut by fan blades, the air supply amount is stable and even, human bodies can feel more comfortable, and the air supply effect is good.

The invention provides an air conditioner. The air conditioner comprises a shell, a fan, an upper air guide plate and a lower air guide plate, wherein the shell is provided with an upper air way and alower air way; one fan is provided; the fan is arranged in the shell; the upper air guide plate is arranged in an upper air outlet of the upper air way in an openable manner; the lower air guide plate is arranged in a lower air outlet of the lower air way in an openable manner; and the upper air guide plate and the lower air guide plate can be independently adjusted, so that the air conditioner has three operating modes of only upper exhausting, only lower exhausting and synchronous upper and lower exhausting. The problems of complicated structure, larger size and higher cost of an air conditioner in the airflow structure technology of a traditional upper and lower exhausting air conditioner are solved.

The invention provides a multifunctional adjustable-type electric fan, which comprises a base, an outer shell, a circuit board and a turbine fan, wherein the outer shell is movably arranged on the base, the circuit board is arranged on the bottom of the outer shell, the turbine fan is arranged inside the outer shell; and the multifunctional adjustable-type electric fan is characterized in that an inner shell is movably installed inside the outer shell, the turbine fan is arranged on the inner shell, and a heater is movably arranged on an air outlet of the inner shell. The turbine fan comprises a first motor which is installed inside the inner shell and two turbines which are integrated and installed on the first motor. Compared with the traditional turbine fan, a purpose of swinging and exhaustion can be realized by rotating the movable inner shell, the application of a swinging blade can be avoided, and the multifunctional adjustable-type electric fan has the characteristics of simplicity in structure, convenience in movement and air supply in different directions.

The invention relates to a ventilation device for a textile workshop, which belongs to the technical field of ventilation facilities. The ventilation device comprises a hanging rod, a gear disc, a rotating rack, a power transmission mechanism, a driving gear wheel, a fan cylinder, an air delivery mechanism, a fan cylinder angle regulating mechanism and a feeding mechanism, wherein a connecting shaft sleeve is fixed outside the hanging rod; the gear disc is provided with engaging teeth and is fixed on the connecting shaft sleeve; the rotating rack is arranged on the connecting shaft sleeve and is positioned under the gear disc; the power transmission mechanism is arranged at one side of the rotating rack; the driving gear wheel is arranged on the upper part of one side of the rotating rack, is connected with the power transmission mechanism, and is engaged with the engaging teeth; the fan cylinder is provided with a cylinder cavity, and both corresponding sides of one end of the fan cylinder are pivoted and connected with the lower part of the rotating rack; the air delivery mechanism is arranged in the cylinder cavity; the fan cylinder angle regulating mechanism is connected with the power transmission mechanism and is also connected with the fan cylinder; the feeding mechanism is connected with the connecting shaft sleeve and is fixed with the rotating rack. The invention can conduct omnibearing air delivery in 360 degrees and can also deliver air up and down, thereby expanding the ventilation range of the textile workshop and improving the air delivery effect.

The invention belongs to the technical field of air ducts, and discloses an air duct system, an air supply method of the air duct system, a fan with the air duct system and an air conditioner with the air duct system. Airflow is at least divided into two ways and blown out from air outlets in the two sides of an air tunnel through flow diversion passages, so that airflow moving forwards evenly and stably is formed on the two sides of the air tunnel, strong and stable negative pressure can be generated in the air tunnel, under the suction effect of the negative pressure, air at the rear of the air tunnel is sucked forwards, enters the air tunnel from the rear end of the air tunnel, penetrates through the air tunnel, and then flows out of an opening in the front end of the air tunnel, the air supply effect of an airflow center is enhanced, air surrounding the air tunnel is supplemented due to the effect of the negative pressure, the center airflow drives the airflow surrounding the center airflow to move forwards together, the air supply range is increased, based on the aerodynamics principle, the air supply effect that the air inflow capacity is multiple times of the air inflow capacity of air inlets is formed, the energy efficiency utilization rate is high, and the air supply effect is good.

The invention relates to an air deflector connection rod drive structure, an air supply device and an air conditioner indoor unit. The air deflector connection rod drive structure comprises an air guide assembly, multiple rack connection rods, a drive rod and a drive motor, wherein the air guide assembly comprises multiple air deflectors, the air deflectors are rotationally connected to an air outlet of a shell, the multiple rack connection rods are arranged on one side of the air guide assembly and rotationally connected with the shell, one ends of the multiple rack connection rods are fixedly connected with rotating shafts of the multiple air deflectors in a one-to-one correspondence manner, the drive rod is formed in the manner that multiple connection rods of different lengths are sequentially hinged in an end-to-end manner through pin shafts, the other end of each rack connection rod is hinged to the corresponding pin shaft, the drive rod conducts displacement to enable the air guide assembly to be opened, so that the multiple air deflectors are mutually parallel, the drive rod conducts displacement to enable the air guide assembly to be closed, so that the multiple air deflectors are connected in an one-to-one abutting manner and form an arc structure flush with the side wall at the air outlet of the shell, and the drive motor is connected with one air deflector. By the adoption of the air deflector connection rod drive structure, it can be guaranteed that the operation manner of the air deflectors is not limited by the shape of the air outlet any more, and concentrated air supply of all the air deflectors is achieved.

The invention relates to a cooling system (1) for a motor vehicle (3), comprising at least one heat exchanger (14, 15), in particular an intercooler, which is traversed by a medium, in particular a coolant that is used to cool a motor (9) and which comprises a heat exchanger air-penetration surface that is traversed by an air stream along a first stream path (26) in a first operating mode, in particular a back-pressure mode and is additionally or alternatively traversed by an air stream along a second stream path (24) running through an air conduction unit (20) in a second operating mode, in particular a ventilator mode. The air conduction unit is located between the heat exchanger (14, 15) and the motor (9) and comprises a conduction air-penetration surface. The aim of the invention is to provide a cooling system, in which the cooling air stream is obstructed as little as possible along the first stream path (26) in the first operating mode and which permits the cooling air stream to be conducted along the second stream path (24) with minimal loss. To achieve this, the air-conduction device (20) and the heat exchanger (14, 15) are configured and arranged in such a way that a parallel projection of the conduction air-penetration surface in the longitudinal direction (8) of the vehicle (3) on the plane containing the heat-exchanger air-penetration surface, protrudes at least partly beyond said heat-exchanger air-penetration surface and that a significant part of the heat-exchanger air-penetration surface is not covered by the parallel projection of the conduction air-penetration surface.

The invention belongs to the technical field of building energy conservation, discloses a shape-stabilized phase-change and embedded tubular ventilation roof, and provides phase-change layer thickness, phase-change temperature range and ventilation strategy suitable for different regions. The shape-stabilized phase-change and embedded tubular ventilation roof comprises a roof layer provided with aphase-change material layer and an embedded tubular ventilation pipeline, an air inlet and an air outlet, wherein electric air valves and a fan are arranged on an air opening, the fan is used for conveying outdoor air to the ventilation pipeline, and the electric air valves are used for switching the communicating and non-communicating state of the outdoor air and the embedded tubular ventilationpipeline. Compared with an existing traditional roof system, the problems of effective heat insulation in daytime and effective heat removal at night in summer can be effectively solved, and cool wind at night can be utilize to store cold, so that a roof structure with near zero energy consumption in summer is achieved. Compared with existing similar phase-change ventilation bricks, the phase-change ventilation roof achieves optimal heat insulation performance in different climate regions through the improvement of the roof structure, the design of the thermophysical properties of a phase-change material and the optimization of the ventilation strategy.

The invention provides an air guide device of an air conditioner. The air guide device comprises flexible slats arranged in parallel, a connecting bar and a drive mechanism. Each flexible blade has a first corner and a second corner; the first corner is fixedly connected with the windward side of an air outlet; the second corner is rotatably connected to the connecting bar; a rotation axis is formed between the second corner and the connecting bar. Each flexible slat has a first area, a second area and a third area; at least part of the third area is thinner than the second area. Flexural deformation of the flexible slats includes flexural deformation around a first axial direction and flexural deformation around a second axial direction. Besides swinging left or right, the flexible slats turn down or up; the flexible slats can also bend in two dimensions; pressure loss is reduced, air volume and air speed are guaranteed, air supply is effective, and comfort of supplied air is greatly improved. The invention further provides the air conditioner comprising the air guide device.

The invention belongs to the technical field of air detection equipment, particularly relates to a building material air detection system, and aims at the problem that the service life of the existingair detection equipment is shortened or the air detection effect is affected due to the fact that pollutants such as chippings and dust in household building materials are sucked in easily is solved.The following scheme is proposed: the building material air detection system comprises a shell and an air detector, a box door is arranged on the front side of the shell; an air inlet pipe is arranged on one side of the shell; an air outlet pipe is arranged on the side, away from the air inlet pipe, of the shell. A plurality of pulleys are arranged at the bottom of the shell; a display screen isfixedly mounted on the front side of the shell; the display screen is matched with the air detector. According to the building material air detection system, pollutants such as chippings and dust in household building materials are intercepted by arranging the filter screen, the pollutants are cleaned by arranging the brush, the pollutants can be taken out after the equipment is opened, the equipment sucks and supplies air through air pressure through cooperation of the piston, the sliding plate and other structures, and the air suction and supply effect of the equipment is good.

The invention provides an under-floor air supply data center refrigeration system. The under-floor air supply data center refrigeration system comprises two rows of cabinets, the air inlet ends of which are arranged in a face-to-face manner; air return devices, which are connected with the air outlet ends of the cabinets; air return ducts provided with built-in heat exchangers; a machine room elevated through hole floor; and a cooling channel formed by the cabinets, a channel door, the elevated through hole floor, and a top part closing plate in an encircled manner. The hot air exhausted by the air outlet ends of the cabinets are delivered by the air return devices to the heat exchangers for cooling. The heat exchangers are disposed in the air return ducts, and one side of each of the air return ducts is connected with the corresponding air return device, and the other side of each of the air return ducts is connected with the lower part of the elevated through hole floor. The cooled air enters the lower part of the floor, and is delivered to the cooling channel by the through hole floor after being mixed and stabilized. The cool air in the cooling channel is sucked in by the cabinets, and then is exhausted by the cabinets to complete heat dissipation circulation. The under-floor air supply data center refrigeration system is advantageous in that energy loss of a draught fan on an end of an air conditioner is saved, and problems of common under-floor air supply systems such as non-uniform air supply in the length direction of the cooling channel, two fast bottom air supply speed, small air inlet quantity of servers on the lower parts of the cabinets, and easy generation of local hot spots are improved, and therefore the internal temperature of the cabinets is reduced, and the integrated heat dissipation efficiency of the cabinets is improved.

The invention provides a refrigerator. The refrigerator comprises a refrigerator body, an air duct assembly and a branching air feeding device, wherein the refrigerator body is internally provided with a cooling space, a first storage space and a second storage space; the air duct assembly is installed on the refrigerator body, the rear side of the air duct assembly is provided with the cooling space, the front side of the air duct assembly is provided with the second storage space, the air duct assembly is provided with a containing cavity, a plurality of air ducts and a plurality of air feeding openings facing forwards, and the multiple air ducts comprise the first air duct and the multiple second air ducts; the branching air feeding device is installed in the containing cavity and provided with a peripheral wall part extending in the longitudinal direction of the refrigerator body, the peripheral wall part is provided with a plurality of air outlets, and the multiple air outlets comprise the first air outlet and the multiple second air outlet; the first air duct is configured to communicate with the first air outlet and the first storage space; and each second air duct is configured to communicate with the corresponding second air outlet and one or more air feeding openings, and each second air outlet communicates with at least one second air duct. The refrigerator is reasonable in structural design and capable of feeding air effectively.

The invention discloses a vortex ring generating device, an air conditioner indoor unit and an air conditioner. The vortex ring generating device comprises a flow gathering member, a louver ring and alouver driving mechanism; the flow gathering member is provided with a first port and a second port; the wind blowing area of the second port is smaller than that of the first port; the louver ring is arranged at the first port, and includes a mounting ring and multiple blades; the multiple blades are arranged in the circumferential direction of the mounting ring; each blade has a rotating end connected with the mounting ring, and a free end rotating around the rotating end; the louver ring has a closed state that the free ends of all the blades get close to a plane where the mounting ring islocated so as to close the first port, and an open state that the free ends of all the blades move away from the first port and get close to the second port; and the louver driving mechanism drives the louver ring to be periodically switched between the open state and the closed state. In the switching process of the louver ring from the closed state to the open state, the rotation direction of each blade is consistent with an air supply direction, so that disturbance to airflow is small, and the vortex ring forming effect is good.

The present invention relates to an arrangement and a method for enlarging a boiler, especially a chemical recovery boiler, and in that way for optimizing and simplifying a capacity increase. An object of the present invention is to provide for a boiler plant, which is easily adaptable to increasing boiler loading without decreasing the efficiency of the combustion process, but facilitating its optimal control. In accordance with the invention, the option of enlarging the boiler is taken into account by reserving space in connection with the boiler so that a side wall (3) may be moved, thus increasing the length of the front wall (2) and the rear wall (4). After the enlargement, the distance between the front and rear walls is essentially the same as before the enlargement.

washing drier, which is characterized in that the washing drier washes and dries the clothes contained in the cylinder and is provides with a fan device for guiding the hot wind heated by the heating source to the cylinder when drying, wherein the cylinder can be rotatably supported inside the water groove in the basket body; the fan device is composed of a feeding fan, a fan cover and a motor for driving the feeding fan; the arrangement is longitudinal that leads the suction inlet opening on transverse direction; drain opening is arranged at the lower part of the fan cover; a water storage part is disposed in the water draining path below the drain opening. The invention keeps the air feeding performance, because even if the water spray flies into the pipe and into the fan device due to washing dehydration, the water spray will drain out of the fan cover. Additionally, the fan cover is located at the lower part of the main body, thus the fan can be large-size and with a powerful air feeding performance.

The invention discloses an indoor secondary airflow device used in large-space and large-span buildings and is characterized in that an air inlet is arranged on one lateral wall or the bottom of a case, an air outlet is arranged on the other lateral wall of the case, the air inlet is communicated with an air inlet chamber that is communicated with a fan entrance, and a fan air outlet is sequentially connected with a guide chamber, an air outlet section and the air outlet; a guide plate 1 is connected on an inner wall under the fan air outlet and divides the guide chamber into an upper cavity and a lower cavity that are communicated, a guide plate 2 is arranged between the lower cavity and the air outlet section, and the lower cavity is communicated with the air outlet section and the air outlet. A flashboard is arranged on the lateral wall of the air outlet and connected with a guide plate 3 by two arc skid shoes. An advertising lamp box is arranged on the lateral wall of the case. The secondary airflow device of the invention has the effects of transferring primary air feeding energy and separating upper and lower regions with and without an air conditioner, thus leading the environment of the lower air conditioner region to be uniform and comfortable.

The invention relates to the technical field of formaldehyde removing equipment, and discloses an intelligent filtering robot for removing formaldehyde inside a car. The intelligent filtering robot comprises a fixed box, wherein the top end of an inner cavity of the fixed box is fixedly sleeved with a sliding plate, a filtering box located in the fixed box is movably connected with the side surface of the sliding plate, a cover plate located outside the fixed box is fixed at the top end of the filtering box, an air pipe is fixedly mounted on the side surface of the fixed box in a sleeving manner, two ends of the air pipe are fixedly connected with the side surface of the filtering box, an air outlet pipe is fixed on one side, away from the air pipe, of the filtering box, and one end of the air outlet pipe penetrates the fixed box and extends to the outside of the side surface of the fixed box. According to the intelligent filtering robot used for removing formaldehyde inside the car, air led out of an air conditioner vent in the car is transferred into the filtering box in the fixed box through a hose, so that activated carbon particles in the filtering box float under the action of blast, the contact surface between the activated carbon particles and air is increased, and accordingly, formaldehyde removing efficiency is improved.

The invention relates to a swirl eliminator, a mixed flow fan and an air conditioner. The swirl eliminator comprises a wheel cover (10), a hub (20) and blades, wherein the wheel cover (10) is providedwith a through cavity, the hub (20) is arranged in the cavity, a flow channel (50) is formed between the hub (20) and the cavity wall of the cavity, the blades are arranged in the flow channel (50) and used for guiding airflow flowing through the flow channel (50) to flow out in the direction close to the axis (60) of the swirl eliminator, a central trajectory (53) on a longitudinal section, passing through the axis (60) of the swirl eliminator, of the flow channel (50) comprises a first trajectory and a second trajectory, the distance between the first trajectory and the axis (60) of the swirl eliminator increases in the airflow flowing direction, the second trajectory is located downstream of the first trajectory, and the distance between the second trajectory and the axis (60) of the swirl eliminator decreases in the airflow flowing direction. The swirl eliminator can improve the air supply performance and improve the air outlet pressure head.