Air purification system, method and air conditioner

Abstract

The present invention provides an air purification system, method and air conditioner. The system includes: a primary filter module, which is used to filter the particle impurities of a first preset size in the gas sucked in by the fan under negative pressure; a secondary filter module, which is used to separate the impurities from the gas passing through the primary filter module by centrifugal action; a tertiary filter module, which is used to filter the particle impurities of a second preset size in the gas passing through the secondary filter module; the second preset size is smaller than the first preset size, and the gas passing through the tertiary filter module is sent indoors or outdoors through the fan; a reversing module, which is used to change the gas inlet channel entering the primary filter module, and the gas inlet channel includes an outdoor fresh air inlet channel and a dusty gas inlet channel inside the device with an air purification system. It can achieve both purification of the fresh air introduced from the outside and cleaning of the device with an air purification system.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air purification system, method and air conditioner. Background Art

[0002] At present, when air conditioners are passing fresh air into the room, they usually use a high efficiency particulate air filter (HEPA) to purify the outdoor fresh air before passing it into the room. The service life of the HEPA filter is about 1080 hours, and it is easy to get clogged, which affects the purification effect and needs to be replaced frequently. After the air conditioner has been used for a period of time, dust accumulates in the filter and air duct. On the one hand, it is easy to breed bacteria and produce odors. When the air is taken in, dust will be brought into the air, affecting the health of users. On the other hand, long-term dust accumulation requires disassembly and cleaning, and the disassembly process is cumbersome and complicated. Summary of the invention

[0003] The main purpose of the present invention is to provide an air purification system, method and air conditioner for at least partially solving the above technical problems.

[0004] To solve the above problems, the present invention provides an air purification system on one hand, which includes: a primary filter module, which is used to filter particulate impurities of a first preset size in the gas sucked in by the negative pressure of the fan; a secondary filter module, which is used to separate impurities from the gas passing through the primary filter module by centrifugal action; a tertiary filter module, which is used to filter particulate impurities of a second preset size in the gas passing through the secondary filter module; the second preset size is smaller than the first preset size, and the gas passing through the tertiary filter module is sent indoors or outdoors through the fan; a reversing module, which is used to change the gas inlet channel entering the primary filter module, and the gas inlet channel includes an outdoor fresh air inlet channel and a dust-containing gas inlet channel inside the device with an air purification system.

[0005] Therefore, the air purification system provided by the present invention can not only purify the fresh air introduced from the outside to improve the quality of the fresh air, but also clean the dust accumulated inside the device with the air purification system, such as the air duct and filter screen, to achieve dust and gas separation, and the cleaned air is discharged into the room to prevent the dust-carrying gas from polluting the indoor air. It can prevent bacteria, odor and other problems caused by dust accumulation in the filter screen, air duct, etc., thereby avoiding harm to the human body.

[0006] Optionally, the secondary filter module includes at least one conical cyclone separator, and an air flow guide port is arranged along the tangential direction of the conical cyclone separator. The gas passing through the primary filter module enters the conical cyclone separator through the air flow guide port, and the separated impurities settle from the bottom of the conical cyclone separator, and the filtered gas flows out from the top of the conical cyclone separator.

[0007] In this way, after the first-stage filtration, the gas with large particles intercepted will settle to the bottom under the action of centrifugal force and gravity in the conical cyclone separator, thus achieving further purification of the air.

[0008] Optionally, the secondary filtration module includes a plurality of conical cyclone separators, which are close to each other and arranged in a circle to improve the impurity separation effect.

[0009] Optionally, the first-stage filter module includes a sealing shell mounted on the outer wall of the conical cyclone separator, a sealing cavity formed between the sealing shell and the conical cyclone separator, and a filter mesh cover arranged in the sealing cavity and mounted on the outer wall of the conical cyclone separator, the filter mesh cover having filter holes of a first preset size, and an air flow inlet is arranged on the sealing shell.

[0010] Thus, the gas to be purified can first pass through the filter screen with filter holes of a first preset size for the first filtration, and then enter the conical cyclone separator for secondary purification. The filter screen is sleeved on the outer wall of the conical cyclone separator, with a compact structure and easy implementation.

[0011] Optionally, the top of the conical cyclone separator is connected to a three-stage filter module, and the three-stage filter module is arranged in the fresh air cavity. The filtered gas flows out from the top of the conical cyclone separator and directly enters the fresh air cavity, and is filtered for the third time in the fresh air cavity, so that the system structure is compact and does not occupy extra space.

[0012] Optionally, the reversing module includes a motor, a cavity, and a slider arranged inside the cavity and connected to the motor; the cavity is connected to the primary filter module, and the motor drives the slider to move so that the cavity is connected to the outdoor fresh air inlet channel, or to the dust-containing air inlet channel inside the device with an air purification system.

[0013] Therefore, the air passage to be purified can be easily changed by moving the slider driven by the motor, thereby achieving the multiple functions of purifying the fresh air introduced from the outside and cleaning the gas inside the device with the air purification system.

[0014] Optionally, the three-stage filtration module is a detachable HEPA filter.

[0015] Optionally, a detachable dust box is provided at the bottom of the conical cyclone separator to collect impurities settled from the bottom of the conical cyclone separator, so as to facilitate the processing of the impurities and particles after filtering.

[0016] On the other hand, the present invention provides an air purification method, which includes: when fresh air is introduced into the room, the reversing module connects the outdoor fresh air inlet channel with the first-level filter module, and filters the particulate impurities of a first preset size in the gas sucked in by the fan under negative pressure; then the gas passing through the first-level filter module is passed into the second-level filter module to separate impurities through centrifugal action, and finally the third-level filter module is used to filter the particulate impurities of a second preset size in the gas passing through the second-level filter module, and the gas passing through the third-level filter module is sent into the room through the fan; when the interior of the device with an air purification system is cleaned, the reversing module changes the gas inlet channel entering the first-level filter module, so that the dust-containing gas inlet channel inside the device with the air purification system is connected with the first-level filter module, so that the dust-containing gas is purified by the first-level filter module, the second-level filter module, and the third-level filter module in turn and then sent into the room or outdoors through the fan.

[0017] The air purification method has the same advantages as the above-mentioned air purification system, which will not be repeated here.

[0018] In another aspect, the present invention provides an air conditioner, comprising the air purification system described above.

[0019] The air conditioner has the same advantages as the above-mentioned air purification system, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The schematic diagram of the front view structure of the air purification system provided by one embodiment of the present invention is shown;

[0021] Figure 2 A schematic diagram of the side structure of an air purification system provided by an embodiment of the present invention is shown;

[0022] Figure 3 A schematic diagram of the structure of a fresh air chamber in an air purification system provided in one embodiment of the present invention is shown;

[0023] Figure 4 A schematic diagram of the structure of a reversing module in an air purification system provided in one embodiment of the present invention is shown;

[0024] Figure 5 The structure diagram of the primary filter module and the secondary filter module in the air purification system provided by one embodiment of the present invention is schematically shown.

[0025] 1-primary filter module, 11-sealed shell, 11a-air flow inlet, 12-sealed chamber, 13-filter screen, 2-secondary filter module, 21-conical cyclone separator, 21a-air flow guide port, 21b-bottom of conical cyclone separator, 21c-top of conical cyclone separator, 3-third-stage filter module, 4-reversing module, 41-motor, 42-cavity, 43-slider, 44-connection port between cavity and primary filter module, 5-outdoor fresh air inlet channel, 6-dust-containing gas inlet channel inside the device with air purification system, 7-fresh air cavity, 8-detachable dust collection box, 9-fan, 10-filter screen bracket. DETAILED DESCRIPTION

[0026] In order to make the application purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1

[0028] The embodiment of the present invention provides an air purification system. Figures 1 to 5 , this embodiment is described in detail.

[0029] The system includes: a primary filter module 1, used to filter particulate impurities of a first preset size in the gas sucked in by the fan 9 under negative pressure; a secondary filter module 2, used to separate impurities from the gas passing through the primary filter module 1 by centrifugal action; a tertiary filter module 3, used to filter particulate impurities of a second preset size in the gas passing through the secondary filter module 2; the second preset size is smaller than the first preset size, and the gas passing through the tertiary filter module 3 is sent indoors or outdoors through the fan 9; a reversing module 4, used to change the gas inlet channel entering the primary filter module 1, and the gas inlet channel includes an outdoor fresh air inlet channel 5, and a dust-containing gas inlet channel 6 inside the device with an air purification system.

[0030] In a feasible way of this embodiment, the secondary filter module 2 includes at least one conical cyclone separator 21, and an airflow guide port 21a is set along the tangent direction of the conical cyclone separator 21. The gas passing through the primary filter module enters the conical cyclone separator through the airflow guide port. In the conical cyclone separator, small particles of impurities settle to the bottom under the action of centrifugal force and gravity, so that the separated impurities settle from the bottom 21b of the conical cyclone separator, and the filtered gas flows out from the top 21c of the conical cyclone separator. Among them, the airflow guide port 21a should be set at a position close to the top of the conical cyclone separator 21, so that the air entering the conical cyclone separator 21 can more effectively separate impurities. In addition, a detachable dust box 8 is set at the bottom of the conical cyclone separator 21 to collect impurities settled from the bottom of the conical cyclone separator 21.

[0031] The present embodiment does not specifically limit the number of the conical cyclone separators 21 in the secondary filter module 2, for example, it can be one or more conical cyclone separators 21. When the secondary filter module 2 is composed of a plurality of conical cyclone separators 21, the plurality of conical cyclone separators 21 are close to each other and arranged in a circle to improve the impurity separation effect.

[0032] In a feasible manner of this embodiment, the primary filter module 1 includes a sealed shell 11 sleeved on the outer wall of the conical cyclone separator 21, a sealed cavity 12 formed between the sealed shell 11 and the conical cyclone separator 21, and a filter screen cover 13 arranged in the sealed cavity 12 and sleeved on the outer wall of the conical cyclone separator 21, wherein the filter screen cover 13 has a filter hole 13a of a first preset size, and an airflow inlet 11a is arranged on the sealed shell 11. The height of the filter screen cover 13 is consistent with the height of the sealed cavity 12, and the sealed shell 11 ensures that the gas entering the sealed cavity 12 from the airflow inlet 12a must pass through the filter screen cover 13 for the first coarse filtration, and the gas filtered by the filter screen cover 13 enters the conical cyclone separator 21 through the airflow guide port 21a of the conical cyclone separator 21 for the second filtration.

[0033] In addition, the top 21c of the conical cyclone separator is connected to the three-stage filter module 3, and the three-stage filter module 3 is arranged in the fresh air chamber 7. The three-stage filter module 3 is a detachable HEPA filter, which is installed by a filter bracket 10 arranged in the fresh air chamber 7. The filtered gas flows out from the top of the conical cyclone separator and directly enters the fresh air chamber 7, and is filtered for the third time in the fresh air chamber, so that the system structure is compact and does not occupy extra space.

[0034] In a feasible manner of this embodiment, the reversing module 4 includes: a motor 41, a cavity 42, and a slider 43 arranged inside the cavity 42 and connected to the motor 41; the cavity 42 is connected to the primary filter module 1 through the cavity and the primary filter module connecting port 44, and the motor 41 drives the slider 43 to move, so that the cavity 42 is connected to the outdoor fresh air inlet channel 5, or connected to the dust-containing air inlet channel 6 inside the device with the air purification system.

[0035] The working principle of the embodiment of the present invention is as follows: when fresh air needs to be introduced into the room, the motor 41 in the reversing module 4 drives the slider 43 to move, and the slider 43 moves to block the dusty air inlet channel 6 inside the device with the air purification system, so that the primary filter module 1 and the outdoor fresh air inlet channel 5 are connected through the cavity 42. Under the negative pressure suction of the fan 9, the outdoor fresh air enters the sealed cavity 12 through the airflow inlet 12a on the sealed shell 11, and passes through the first stage of filtration of the filter screen 13. Then the airflow enters the conical cyclone separator from the airflow guide port 21a of the conical cyclone separator 21, and the small particle impurities in the conical cyclone separator settle to the bottom under the action of centrifugal force and gravity, so that the separated impurities settle from the bottom 21b of the conical cyclone separator, and the filtered gas flows out from the top 21c of the conical cyclone separator. The second stage of filtration is achieved. The settled impurities fall into the detachable dust box 8, which can be removed and removed after a certain period of time. The gas flowing out from the top 21c of the conical cyclone separator enters the fresh air chamber 7, is filtered by a detachable HEPA filter arranged in the fresh air chamber 7, completes the third-stage filtration, and then the fresh air that has completed the third-stage filtration is delivered into the room through the fan 9.

[0036] When it is necessary to clean the inside of the device with an air purification system, the motor 41 in the reversing module 4 drives the slider 43 to move, and the slider 43 moves to block the outdoor fresh air inlet channel 5, so that the primary filter module 1 and the dust-containing air inlet channel 6 of the device with an air purification system are connected through the cavity 42. The device with an air purification system can be an air conditioner, and the dust-containing air inside it is due to the long-term use of the air conditioner, and dust is deposited in the air duct, filter screen, etc. inside the air conditioner. Under the negative pressure suction of the fan 9, the dust deposited in the air duct inside the air conditioner will follow the air flow into the primary filter module 1, and then pass through the secondary filter module 2 and the tertiary filter module 3 in turn. The three-stage filtration is the same as the filtering principle of the above-mentioned fresh air, which will not be repeated here. The dust-containing gas after the three-stage filtration can now be sent indoors or enter the remaining pipes to the outdoors.

[0037] Embodiment 2

[0038] The embodiment of the present invention provides an air purification method, which includes: when fresh air is introduced into a room, the reversing module 4 connects the outdoor fresh air inlet channel 5 with the primary filter module 1, and filters the particulate impurities of a first preset size in the gas sucked in by the fan 9 under negative pressure; then the gas passing through the primary filter module 1 is passed into the secondary filter module 2 to separate impurities through centrifugal action, and finally the tertiary filter module 3 is used to filter the particulate impurities of a second preset size in the gas passing through the secondary filter module 2, and the gas passing through the tertiary filter module 3 is sent into the room through the fan 9; when the interior of the device with an air purification system is cleaned, the reversing module 4 changes the gas inlet channel entering the primary filter module 1, so that the dust-containing gas inlet channel 6 of the device with the air purification system is connected with the primary filter module 1, so that the dust-containing gas is purified by the primary filter module 1, the secondary filter module 2, and the tertiary filter module 3 in turn and then sent into the room or outdoors through the fan 9.

[0039] The air purification method has the same advantages as the above-mentioned air purification system, which will not be repeated here.

[0040] Embodiment 3

[0041] This embodiment provides an air conditioner, which includes the air purification system described in the first embodiment.

[0042] The air conditioner has the same technical features as the air purification system in the above embodiment, and has the same advantages as the air purification system in the above embodiment, which will not be repeated here.

[0043] In summary, the air purification system, method and air conditioner provided by the present invention can not only purify the fresh air introduced from the outside and improve the quality of the fresh air, but also clean the dust accumulated inside the device with the air purification system, such as the air duct and filter, to achieve dust-gas separation, and discharge the cleaned air into the room to prevent the dust-carrying gas from polluting the indoor air. It can prevent bacteria, odor and other problems caused by dust accumulation in the filter, air duct, etc., thereby avoiding harm to the human body.

[0044] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. An air purification system, characterized in that: The system comprises: A primary filtering module (1) for filtering particulate impurities of a first preset size in the gas sucked in by the fan (9) under negative pressure; A secondary filter module (2) is used to separate impurities from the gas passing through the primary filter module (1) by centrifugal action; The third-stage filter module (3) is used to filter particle impurities of a second preset size in the gas passing through the second-stage filter module (2); the second preset size is smaller than the first preset size, and the gas passing through the third-stage filter module (3) is sent indoors or outdoors through a fan (9); The reversing module (4) is used to change the gas inlet channel entering the primary filtering module (1), wherein the gas inlet channel includes an outdoor fresh air inlet channel (5) and an internal dust-containing gas inlet channel (6) of the device with an air purification system.

2. The system according to claim 1, characterized in that The secondary filter module (2) comprises at least one conical cyclone separator (21), an airflow guide port (21a) being arranged along the tangent direction of the conical cyclone separator (21), the gas passing through the primary filter module entering the conical cyclone separator through the airflow guide port, the separated impurities settling from the bottom (21b) of the conical cyclone separator, and the filtered gas flowing out from the top (21c) of the conical cyclone separator.

3. The system according to claim 2, characterized in that The secondary filtering module comprises a plurality of conical cyclone separators (21), wherein the plurality of conical cyclone separators (21) are closely adjacent to each other and arranged in a circle.

4. The system according to claim 2 or 3, characterized in that: The primary filter module (1) comprises a sealing shell (11) sleeved on the outer wall of the conical cyclone separator (21), a sealing cavity (12) formed between the sealing shell (11) and the conical cyclone separator (21), and a filter screen (13) arranged in the sealing cavity (12) and sleeved on the outer wall of the conical cyclone separator (21), wherein the filter screen (13) has a filter hole (13a) of a first preset size, and an airflow inlet (11a) is arranged on the sealing shell (11).

5. The system according to claim 2 or 3, characterized in that: The top (21c) of the conical cyclone separator is connected to a three-stage filter module (3), and the three-stage filter module (3) is arranged in the fresh air cavity (7).

6. The system according to claim 1, characterized in that The reversing module (4) comprises: a motor (41), a cavity (42), and a slider (43) disposed inside the cavity (42) and connected to the motor (41); the cavity (42) is in communication with the primary filter module (1), and the motor (41) drives the slider (43) to move, so that the cavity (42) is in communication with an outdoor fresh air inlet channel (5), or is in communication with a dust-containing air inlet channel (6) inside a device with an air purification system.

7. The system according to claim 1, characterized in that The three-stage filter module (3) is a detachable HEPA filter.

8. The system according to claim 2, characterized in that A detachable dust collecting box (8) is provided at the bottom of the conical cyclone separator (21) for collecting impurities settled from the bottom of the conical cyclone separator (21).

9. An air purification method, characterized in that: The method comprises: When fresh air is introduced into the room, the reversing module (4) allows the outdoor fresh air to enter the channel (5) and communicate with the primary filter module (1), thereby filtering out particle impurities of a first preset size in the gas sucked in by the fan (9) under negative pressure; the gas that has passed through the primary filter module (1) is then introduced into the secondary filter module (2) to separate impurities through centrifugal action; finally, the tertiary filter module (3) is used to filter out particle impurities of a second preset size in the gas that has passed through the secondary filter module (2), and the gas that has passed through the tertiary filter module (3) is sent into the room through the fan (9); When cleaning the interior of a device with an air purification system, the reversing module (4) changes the gas inlet passage into the primary filter module (1), so that the dust-containing gas inlet passage (6) inside the device with the air purification system is connected to the primary filter module (1), so that the dust-containing gas passes through the primary filter module (1), the secondary filter module (2), and the tertiary filter module (3) in sequence for purification and is then sent indoors or outdoors through the fan (9).

10. An air conditioner, characterized in that: The air conditioner comprises the air purification system as described in any one of claims 1-8.

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