Air supply outlet of high-efficiency filter

Abstract

The utility model relates to the field of filters, in particular to an air supply outlet of a high-efficiency filter. Comprising an air inlet pipeline used for guiding air into an air supply outlet of the high-efficiency filter; the pre-filtering net is arranged at one end of the air inlet pipeline and is used for capturing larger particles so as to reduce the burden of the efficient filtering layer; the efficient filtering layer is adjacent to the pre-filtering net and is used for removing tiny particles in the air so as to improve the cleanliness of the air; the fan device is mounted at the downstream of the efficient filter layer and used for providing driving force of airflow to keep the air speed and pressure required by the air supply outlet stable; the control valve is located at the tail end of the air outlet pipeline and used for adjusting the output air volume and controlling the air pressure in the air duct to be balanced; and the adjustable cleaning mechanism is connected between the pre-filtering net and the inner surface of the air inlet pipeline, comprises a brushing and sweeping component capable of automatically stretching and retracting and a driving assembly, and is used for cleaning the pre-filtering net within a preset time so as to prevent the situation that the filtering efficiency is reduced due to dust and dirt accumulation.

Description

Technical Field

[0001] The utility model belongs to the technical field of filters, and particularly relates to an air supply outlet of a high-efficiency filter. Background Art

[0002] Part of the air outlets of the existing air duct machines in central air conditioners are arranged on the side wall of the roof. A formwork is erected by a carpenter at the air outlet to set up a box-shaped installation cavity with a certain depth for arranging the air outlet pipeline in the box, and a wind guiding cover plate is arranged at the air outlet to control the air outlet direction, but usually the cover plate does not have the function of filtering the air outlet.

[0003] After retrieval, the published patent with the publication number of CN113756257A and the publication date of December 7, 2021, titled "An air outlet of a central air conditioner with a filtering component" includes an air outlet baffle, and also includes: connecting shafts symmetrically and rotatably connected to the air outlet baffle, and a synchronous belt symmetrically connected between the two connecting shafts; in the present invention, water is first used to capture foreign objects, so that the foreign objects gather in the treatment cavity, and the foreign objects are wetted to have a certain weight, and the foreign objects can be gathered to avoid being too dispersed, thereby avoiding floating around during treatment. Then, the filter screen rises to push the foreign objects to the connecting box pipe, and then the push plate pushes the foreign objects on the filter screen into the collection box for collection. Through a series of linkage operations, the device can effectively prevent foreign objects from floating around when cleaning the foreign objects on the rigid filter screen, and can better handle the foreign objects after cleaning when automatically cleaning the rigid filter screen.

[0004] In actual application, the above device cannot balance the air volume and the internal air pressure of the air duct during the entire operation period, resulting in damage to the device and reducing the safety of the device. Content of the Utility Model

[0005] In view of the above problems, the utility model provides an air supply outlet of a high-efficiency filter. It includes an air inlet pipe, one end of the air inlet pipe is provided with a pre-filter screen, the pre-filter screen is in a grid shape, and an adjustable cleaning mechanism is connected between the pre-filter screen and the air inlet pipe. At the same time, a high-efficiency filter layer is arranged on one side of the pre-filter screen, the high-efficiency filter layer is arranged adjacent to the pre-filter screen, a fan device is installed under the high-efficiency filter layer, the fan device provides air flow driving force, the other end of the air inlet pipe is provided with an air outlet pipeline, a control valve is installed at the end of the air outlet pipeline, the adjustable cleaning mechanism is supported by a plurality of independent electric telescopic shafts, and the electric telescopic shafts enable the brushing component to adjust the orientation angle arbitrarily within a preset direction.

[0006] Furthermore, a series of guide vanes are arranged inside the air inlet pipe, and the arrangement of the guide vanes makes the air flow entering the pipe form a spiral shape.

[0007] Furthermore, the pre-filter screen adopts a multi-layer stacked design, and a vibration motor is arranged between the stacked layers.

[0008] Furthermore, the high-efficiency filter layer comprises a structure formed by compounding two fiber materials with different pore diameters, and the fibers on the side close to the upstream are thicker and less dense, while gradually becoming finer and denser in the downward layer.

[0009] Furthermore, the blower device comprises an inverter frequency adjuster, and the inverter frequency adjuster is in a rectangular structure.

[0010] Furthermore, the control valve is designed as an electronically controlled pneumatic type, and the control valve is connected with a flow meter.

[0011] Furthermore, a negative ion ejector is additionally arranged on the air outlet pipeline, and the negative ion ejector can generate a large number of free electrons to be adsorbed onto fine particulate matters.

[0012] Furthermore, the adjustable cleaning mechanism comprises a timing device, and the timing device is a remote control device for adjusting the cleaning cycle.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. In order to ensure that the air volume at the high-efficiency air outlet reaches balance with the internal air pressure of the air duct during the whole operation period, a control valve is arranged at the end of the air inlet pipeline to adjust the air volume and air pressure according to real-time needs to meet the requirements of the environment. In addition, after the device has worked for a period of time, the accumulated dust on the pre-filter screen will cause its filtration efficiency to gradually decline and may increase the working load of subsequent components. At this time, the set adjustable cleaning mechanism will be started. The automatic telescopic function makes the component with a cleaning brush close to the surface of the pre-filter screen, and removes the dust and other sundries accumulated on the pre-filter screen by means of external power or its own driving component, ensuring the continuous effectiveness of pre-filtration and the operation efficiency of the overall system.

[0015] 2. After passing through the pre-filter screen, the air continues to flow into the high-efficiency filter layer. In this layer, the vast majority of tiny particles will be removed, making the treated air cleaner. To maintain the necessary air flow driving force and ensure the smooth circulation of air and its delivery at an appropriate speed and pressure, a blower device is arranged downstream of the high-efficiency filter layer, which can provide sufficient power for the purified air to move forward smoothly.

[0016] Other features and advantages of the utility model will be described in the following specification, and, partly, will be obvious from the specification, or will be understood by implementing the utility model. The objectives and other advantages of the utility model can be realized and obtained by the structure pointed out in the specification, the claims and the drawings. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 The structural schematic diagram of the air supply opening according to the embodiment of the present invention is shown;

[0019] Figure 2 The exploded schematic diagram of the air supply opening according to the embodiment of the present invention is shown;

[0020] Figure 3 The structural schematic diagram of the adjustable cleaning mechanism according to the embodiment of the present invention is shown.

[0021] In the figure: 1, air inlet pipe; 101, air outlet pipeline; 2, pre-filter; 3, high-efficiency filter layer; 4, fan device; 5, control valve; 6, adjustable cleaning mechanism; 7, guide vane; 9, inverter frequency adjuster; 10, negative ion emitter; 11, timing device. Specific embodiments

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the protection scope of the present invention.

[0023] The embodiment of the present invention provides a high-efficiency filter air supply opening. Exemplarily, as Figure 1 , Figure 2 and Figure 3 shown, it includes an air inlet pipe 1. One end of the air inlet pipe 1 is provided with a pre-filter 2. The pre-filter 2 is in a grid shape, and an adjustable cleaning mechanism 6 is connected between the pre-filter 2 and the air inlet pipe 1. At the same time, a high-efficiency filter layer 3 is provided on one side of the pre-filter 2, and the high-efficiency filter layer 3 is adjacent to the pre-filter 2. A fan device 4 is installed under the high-efficiency filter layer 3, and the fan device 4 provides air flow driving force. The other end of the air inlet pipe 1 is provided with an air outlet pipeline 101, and a control valve 5 is installed at the end of the air outlet pipeline 101.

[0024] Specifically, the pre-filter net 2 is provided at one end of the air inlet duct 1 to capture larger particulate matters and reduce the burden on the high-efficiency filter layer; meanwhile, the high-efficiency filter layer 3 is used to remove tiny particles in the air to improve the air cleanliness;

[0025] In addition, the fan device 4 is used to maintain the required wind speed and pressure stability at the air outlet, and the setting of the control valve 5 can adjust the size of the air volume sent out and control the air pressure balance in the air duct;

[0026] In addition, the adjustable cleaning mechanism 6 includes an automatically retractable brushing component and a driving component, which cleans the pre-filter net 2 at a predetermined time to prevent the accumulation of dirt and reduce the filtration efficiency.

[0027] A series of guide vanes 7 are arranged inside the air inlet duct 1, and the arrangement of the guide vanes 7 makes the air flow entering the duct form a spiral shape. And the pre-filter net 2 adopts a multi-layer superimposed design, and vibration motors are arranged between the superimposed layers.

[0028] Specifically, the guide vanes 7 make the air flow form a spiral shape, which helps the large particulate matters to contact the pre-filter net 2 more evenly and reduces the situation of local blockage. At the same time, the operation of the vibration motor makes the relatively light large particulate matters attached to the filter net loosen and fall off, and are collected by the dust collection tray below, so as to realize the self-cleaning function.

[0029] The high-efficiency filter layer 3 includes a structure composed of two layers of fiber materials with different pore sizes, and the fibers on the side close to the upstream are thicker and less dense, and gradually become finer and more dense in the downward layer. The fan device 4 includes an inverter frequency adjuster 9, and the inverter frequency adjuster 9 is in a rectangular shape.

[0030] Specifically, the composite structure of the high-efficiency filter layer 3 ensures gradual filtration while reducing the single-layer load to maintain a long service life. At the same time, the inverter frequency adjuster 9 can automatically adjust the fan rotation speed in real time based on the feedback information of the actual air pressure sensor data at the air outlet, keep the wind speed at the air outlet at a stable value to adapt to the changes in different working conditions, and prevent the filtration failure caused by too low or too high wind speed.

[0031] The control valve 5 is designed as an electronically controlled pneumatic type, and the control valve 5 is connected with a flow meter. A negative ion emitter 10 is added to the air outlet pipeline 101, and the negative ion emitter 10 can generate a large number of free electrons to adsorb to the fine particulate matters.

[0032] Specifically, the control valve 5 is powered by a gas source, adjusted by the opening and closing of the electromagnetic valve, and cooperates with the flow meter to achieve precise quantitative adjustment, ensuring that the air pressure is evenly distributed in each section and preventing the overall performance from decreasing due to the sudden change of air resistance in some sections;

[0033] In addition, the negative ion ejector 10 makes the change of its charge property more conducive to the subsequent capture by the high-efficiency filter layer 3, thereby improving the treatment performance of nano-scale particulate pollutants and avoiding the phenomenon of performance decline during long-term use.

[0034] The adjustable cleaning mechanism 6 is supported by a plurality of independent electric telescopic shafts, and the electric telescopic shafts enable the brushing component to adjust the azimuth angle arbitrarily within a preset direction. And the adjustable cleaning mechanism 6 includes a timing device 11, and the timing device 11 is a device for remotely controlling and adjusting the cleaning cycle.

[0035] Specifically, the adjustable cleaning mechanism 6 is supported by electric telescopic shafts to achieve the surface coverage cleaning of the entire pre-filter net 2, preventing any negative situations that may affect the ventilation volume and effect due to serious local dust accumulation from presenting;

[0036] In addition, the setting of the timing device 11 enables users or the system to intelligently set the start time interval period of each cleaning operation according to the change of the actual environmental pollutant content, achieving the win-win goal of the best energy saving and effect.

[0037] Working principle

[0038] When this device is in use, first, the air outside or inside the room is guided into the device through the air inlet duct 1. During the flow of the air, it first enters the pre-filter net 2, where larger particulate matters are intercepted, thus protecting the high-efficiency filter layer 3 from being blocked too quickly due to the accumulation of larger particulate matters. After passing through the pre-filter net 2, the air continues to flow and enters the high-efficiency filter layer 3. In this layer, the vast majority of tiny particles will be removed, making the treated air cleaner. To maintain the necessary air flow driving force and ensure the smooth circulation of the air and its delivery at an appropriate speed and pressure, a fan device 4 is provided downstream of the high-efficiency filter layer 3, which can provide sufficient power for the purified air to move forward smoothly.

[0039] Meanwhile, in order to ensure that the air volume and the internal air pressure of the air duct reach balance during the entire operation of the high-efficiency air supply outlet, a control valve 5 is provided at the end of the air inlet pipe 1 to adjust the air volume and air pressure according to real-time needs to meet the requirements of the environment. In addition, after the device has worked for a period of time, the accumulated dust on the pre-filter screen 2 will cause its filtration efficiency to gradually decrease and may increase the workload of subsequent components. At this time, the set adjustable cleaning mechanism 6 will be activated. The automatic telescopic function makes the component with a cleaning brush close to the surface of the pre-filter screen 2, and removes the dust and other sundries accumulated on the pre-filter screen 2 with the help of external power or its own driving components, ensuring the continuous effectiveness of pre-filtration and the operation efficiency of the overall system. This automatic cleaning process can occur regularly or be determined according to the feedback information of the sensor. In this way, through the coordinated cooperation of each part, the entire high-efficiency filter air supply outlet can not only effectively improve the air quality but also maintain its long-term efficient operation.

[0040] Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. An efficient filter air supply outlet, comprising an air inlet duct (1), characterized in that: One end of the air inlet duct (1) is provided with a pre-filter screen (2). The pre-filter screen (2) is in a grid shape, and an adjustable cleaning mechanism (6) is connected between the pre-filter screen (2) and the air inlet duct (1). At the same time, a high-efficiency filter layer (3) is arranged on one side of the pre-filter screen (2). The high-efficiency filter layer (3) is adjacent to the pre-filter screen (2). A fan device (4) is installed below the high-efficiency filter layer (3). The fan device (4) provides air flow driving force. The other end of the air inlet duct (1) is provided with an air outlet pipeline (101). A control valve (5) is installed at the end of the air outlet pipeline (101). The adjustable cleaning mechanism (6) is supported by a plurality of independent electric telescopic shafts, and the electric telescopic shafts enable the brushing component to adjust the azimuth angle arbitrarily within a preset direction.

2. The high-efficiency filter air supply outlet according to claim 1, characterized in that: A series of guide vanes (7) are arranged inside the air inlet duct (1). The arrangement of the guide vanes (7) makes the air flow entering the duct form a spiral shape.

3. The high-efficiency filter air supply outlet according to claim 1, wherein: The pre-filter screen (2) adopts a multi-layer superimposed design, and vibration motors are arranged between the superimposed layers.

4. The high-efficiency filter air supply outlet according to claim 1, characterized in that: The high-efficiency filter layer (3) comprises a structure composed of two layers of fiber materials with different pore diameters, and the fibers on the side closer to the upstream are thicker and less dense, and gradually become finer and denser in the downward layer.

5. The high-efficiency filter air supply outlet according to claim 1, characterized in that: The fan device (4) comprises an inverter frequency adjuster (9), and the inverter frequency adjuster (9) is in a rectangular shape.

6. The high-efficiency filter air supply outlet according to claim 1, wherein: The control valve (5) is designed as an electronically controlled pneumatic type, and the control valve (5) is connected with a flowmeter.

7. The high-efficiency filter air supply outlet according to claim 1, wherein: An anion emitter (10) is additionally arranged on the air outlet pipeline (101). The anion emitter (10) can generate a large number of free electrons to adsorb onto fine particles.

8. The high-efficiency filter air supply outlet according to claim 1, characterized in that: The adjustable cleaning mechanism (6) comprises a timing device (11), and the timing device (11) is a device for remotely controlling and adjusting the cleaning cycle.

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