Variable ventilation pipeline system for indoor purification and control method thereof

Abstract

The present application relates to the field of HVAC technology, and discloses a variable ventilation duct system for indoor purification, including: a main duct, a fan assembly, a first air outlet duct, and a second air outlet duct. The air outlet end of the fan assembly is connected to the main duct, or is arranged in the main duct; the first air outlet duct is connected to the main duct, and a low-efficiency filter assembly is arranged inside it; the second air outlet duct is arranged side by side with the first air outlet duct, and is connected to the main duct, and a plurality of high-efficiency filter assemblies are arranged inside it, and some of the high-efficiency filter assemblies can slide into the first air outlet duct. In the present application, the mutual filtering cooperation of the high-efficiency filter assembly and the low-efficiency filter assembly, and the air outlet cooperation of the first air outlet duct and the second air outlet duct can be used to avoid the blockage of the ventilation duct and reduce the ventilation wind pressure, so that the indoor ventilation cycle can be smoother and the efficiency of the circulating ventilation can be improved. The present application also discloses a control method for a variable ventilation duct system for indoor purification.

Description

Technical Field

[0001] The present application relates to the field of HVAC technology, for example, to a variable ventilation pipeline for indoor purification and a control method thereof. Background Art

[0002] HVAC is an integral part of a building, and HVAC includes three aspects: heating, ventilation, and air conditioning. Ventilation is a method of improving the indoor air environment by ventilation. After the construction of the building is completed, the HVAC ventilation ducts need to be installed and fixed on the floor decking to avoid the ventilation ducts occupying the space of the building, while enabling the ventilation ducts to ventilate the air inside the building.

[0003] In the related art, during the long-term ventilation process of the ventilation duct, foreign matter contained in the indoor air, such as large dust particles, will enter the ventilation duct and adhere to the inner wall of the ventilation duct, or stay in the ventilation duct, which can easily lead to insufficient ventilation of the ventilation duct, thereby causing the wind pressure in the main ventilation duct to increase, and then causing the air supply fan to supply air at a greater power, which is not conducive to the efficiency of indoor circulation ventilation, and at the same time will increase the loss of the air supply fan and increase the ventilation cost.

[0004] It can be seen that how to reduce the wind pressure in the ventilation duct, reduce the loss of the fan, and improve the smoothness and efficiency of ventilation has become a technical problem that needs to be urgently solved by technical personnel in this field.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The disclosed embodiments provide a variable ventilation duct system and a control method for indoor purification to solve the technical problem of how to reduce the wind pressure in the ventilation duct, reduce the loss of the fan, and improve the smoothness and efficiency of ventilation.

[0008] In some embodiments, a variable ventilation duct system for indoor purification includes: a main duct, a fan assembly, a first air outlet duct, and a second air outlet duct. The air outlet end of the fan assembly is connected to the main duct, or is arranged in the main duct; the first air outlet duct is connected to the main duct, and a low-efficiency filter assembly is arranged inside it; the second air outlet duct is arranged side by side with the first air outlet duct, and is connected to the main duct, and a plurality of high-efficiency filter assemblies are arranged inside it, and some of the high-efficiency filter assemblies can slide into the first air outlet duct.

[0009] In some embodiments, a control method for a variable ventilation duct system for indoor purification includes:

[0010] Determine the indoor cleanliness requirements and the wind pressure in the main duct;

[0011] According to the indoor cleanliness requirements and the wind pressure in the main duct, the switches of the first air outlet duct and the second air outlet duct, as well as the positions of some high-efficiency filtering components are controlled.

[0012] In some embodiments, a variable ventilation duct system for indoor purification includes a processor and a memory storing program instructions, and the processor is configured to execute the above-mentioned control method of the variable ventilation duct system for indoor purification when running the program instructions.

[0013] The variable ventilation pipeline system for indoor purification and the control method thereof provided by the embodiments of the present disclosure can achieve the following technical effects:

[0014] The air can be supplied to the main duct through the air outlet end of the fan assembly, or the air can be supplied in the main duct through the fan assembly, so that the wind generated by the fan assembly can enter the room through the first air outlet duct, and the wind will be filtered by the low-efficiency filter assembly during the circulation in the first air outlet duct; at the same time, when the low-efficiency filter assembly cannot meet the filtering in the first air outlet duct, the second air outlet duct can be controlled to open, so as to supply air to the room in the form of a double air duct of the first air outlet duct and the second air outlet duct, and the high-efficiency filter assembly in the second air outlet duct will also filter the passing wind; and when the filtering efficiency of the low-efficiency filter assembly in the first air outlet duct is low, the high-efficiency filter assembly in the second air outlet duct can be controlled to slide into the first air outlet duct, so that the first air outlet duct has the low-efficiency filter assembly and the high-efficiency filter assembly, so as to cooperate with each other for filtering, thereby preventing the first air outlet duct and the second air outlet duct from being blocked, resulting in excessive wind pressure in the main duct, so as to reduce the wind pressure in the main duct, reduce the loss of the fan, and improve the smoothness, efficiency and cleanliness of air supply to the room.

[0015] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0017] Figure 1 It is a structural schematic diagram of a variable ventilation pipeline system for indoor purification provided by an embodiment of the present disclosure;

[0018] Figure 2 is a schematic cross-sectional view of the first air outlet duct provided in an embodiment of the present disclosure;

[0019] Figure 3 is a schematic cross-sectional view of the second air outlet duct provided in an embodiment of the present disclosure;

[0020] Figure 4 is a schematic diagram of the three-dimensional structure of the first air outlet duct and the second air outlet duct provided in an embodiment of the present disclosure;

[0021] Figure 5 is a control block diagram of a controller component provided by an embodiment of the present disclosure;

[0022] Figure 6 is a control block diagram of another controller component provided by an embodiment of the present disclosure;

[0023] Figure 7 is a schematic diagram of a control method of a variable ventilation pipeline system for indoor purification provided by an embodiment of the present disclosure;

[0024] Figure 8 is a schematic diagram of another control method of a variable ventilation pipeline system for indoor purification provided by an embodiment of the present disclosure;

[0025] Fig. 9 It is a structural schematic diagram of another variable ventilation pipeline system for indoor purification provided by an embodiment of the present disclosure.

[0026] Reference numerals:

[0027] 100, processor; 101, memory; 102, communication interface; 103, bus; 200, main duct; 300, fan assembly; 400, first air outlet duct; 401, low-efficiency filter assembly; 500, second air outlet duct; 501, high-efficiency filter assembly; 502, slide rail; 503, slide groove; 504, partition plate; 505, through hole; 600, air detection assembly; 601, particle counter; 602, humidity detector; 700, controller assembly; 800, wind pressure detection assembly. DETAILED DESCRIPTION

[0028] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0029] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0030] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0031] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0032] Unless otherwise stated, the term "plurality" means two or more.

[0033] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0034] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0036] Combination Figure 1-6 As shown, the embodiment of the present disclosure provides a variable ventilation pipeline system for indoor purification, including: a main duct 200, a fan assembly 300, a first air outlet duct 400 and a second air outlet duct 500. The air outlet end of the fan assembly 300 is connected to the main duct 200, or is arranged in the main duct 200; the first air outlet duct 400 is connected to the main duct 200, and a low-efficiency filter assembly 401 is arranged inside it; the second air outlet duct 500 is arranged side by side with the first air outlet duct 400, and is connected to the main duct 200, and a plurality of high-efficiency filter assemblies 501 are arranged inside it, and some of the high-efficiency filter assemblies 501 can enter the first air outlet duct 400 by sliding.

[0037] The variable ventilation duct system for indoor purification provided by the embodiment of the present disclosure can supply air to the main duct 200 through the air outlet end of the fan assembly 300, or supply air in the main duct 200 through the fan assembly 300, so that the wind generated by the fan assembly 300 can enter the room through the first air outlet duct 400, and the wind will be filtered by the low-efficiency filter assembly 401 during the circulation in the first air outlet duct 400; at the same time, when the low-efficiency filter assembly 401 cannot meet the filtering needs in the first air outlet duct 400, the second air outlet duct 500 can be controlled to open, so as to supply air to the room in the form of a double air duct of the first air outlet duct 400 and the second air outlet duct 500, and the second air outlet duct 500 can be used to filter the air in the first air outlet duct 400. The high-efficiency filter component 501 in the air duct 500 will also filter the passing wind; and when the filtering efficiency of the low-efficiency filter component 401 in the first air outlet duct is low, the high-efficiency filter component 501 in the second air outlet duct 500 can be controlled to slide into the first air outlet duct 400, so that the first air outlet duct 400 has the low-efficiency filter component 401 and the high-efficiency filter component 501, which cooperate with each other for filtering, thereby preventing the first air outlet duct 400 and the second air outlet duct 500 from being congested, resulting in excessive wind pressure in the main duct 200, so as to reduce the wind pressure in the main duct 200, reduce the loss of the fan, and improve the smoothness, efficiency and cleanliness of the air supply to the room.

[0038] Optionally, the low-efficiency filter assembly 401 is a primary filter, and the high-efficiency filter assembly 501 is a high-efficiency filter. In this way, different air supply filtering requirements can be met and the quality of air supply flowing into the room can be improved.

[0039] It is worth noting that both primary filters and high-efficiency filters are mature technologies in this field, and their specific structures and filtering principles are well known to those skilled in the art. Therefore, the specific structures and filtering principles of primary filters and high-efficiency filters will not be described in detail here.

[0040] Optionally, the high-efficiency filter assembly 501 in the second air outlet duct 500 is spaced from the low-efficiency filter assembly 401 in the first air outlet duct 400. In this way, the low-efficiency filter assembly 401 can be prevented from hindering the sliding of the high-efficiency filter assembly 501, so that the high-efficiency filter assembly 501 can slide into the first air outlet duct 400 more smoothly.

[0041] Optionally, a slide rail 502 is provided on the top wall of the second air outlet duct 500, a slide groove 503 is provided on the bottom wall, and the high-efficiency filter assembly 501 is installed between the slide rail 502 and the slide groove 503, and is limited to slide in the slide groove 503. In this way, the slide rail 502 can provide a sliding guide for the high-efficiency filter assembly 501, and the slide groove 503 can form a sliding limit for the high-efficiency filter assembly 501, thereby facilitating the high-efficiency filter assembly 501 from tilting during the sliding process, so that the high-efficiency filter assembly 501 can slide more smoothly into the first air outlet duct 400.

[0042] Optionally, a partition plate 504 is provided between the second air outlet duct 500 and the first air outlet duct 400, and a through hole 505 matching the high-efficiency filter assembly 501 is penetrated through the partition plate 504. In this way, by providing the partition plate 504 between the first air outlet duct 400 and the second air outlet duct 500, the first air outlet duct 400 and the second air outlet duct 500 can be arranged side by side, and at the same time, the first air outlet duct 400 and the second air outlet duct 500 can be separated into independent ventilation ducts, and the partition plate 504 can be prevented from hindering the sliding of the high-efficiency filter assembly 501, so that the high-efficiency filter assembly 501 can slide more smoothly from the through hole 505 into the first air outlet duct 400.

[0043] Optionally, the length of the high-efficiency filter assembly 501 is equal to the sum of the inner diameter of the first air outlet duct 400 in the transverse direction and the thickness of the partition plate 504. In this way, when the high-efficiency filter assembly 501 is completely slid into the first air outlet duct 400, the first air outlet duct 400 can be completely blocked and covered, thereby facilitating filtering of the wind passing through the first air outlet duct 400 to improve the filtering effect on ventilation.

[0044] Optionally, the length of the high-efficiency filter assembly 501 is equal to the sum of the inner diameter of the second air outlet duct 500 in the transverse direction and the thickness of the partition plate 504. In this way, when the high-efficiency filter assembly 501 is located in the second air outlet duct 500, its end close to the partition plate 504 can completely block the through hole 505 on the partition plate 504, which is conducive to the leakage of the through hole 505 during the air supply process when the second air outlet duct 500 is closed and the first air outlet duct 400 is opened, thereby effectively improving the circulation efficiency in the first air outlet duct 400.

[0045] Optionally, an adjustment component is provided at the connection port of the first air outlet duct 400 and the second air outlet duct 500 with the main duct 200, which is used to open or close the second air outlet duct 500. In this way, the opening or closing of the second air outlet duct 500 can be controlled by the provided adjustment component, so that when the fresh air in the main duct 200 enters the room, it can be filtered by the low-efficiency filter component 401 and the high-efficiency filter component 501 at the same time, or filtered by the low-efficiency filter component 401, which can effectively improve the quality of the fresh air entering the room and ensure the comfort of the user.

[0046] Optionally, the port at one end of the main duct 200 communicating with the first air outlet duct 400 and the second air outlet duct 500 is smaller than the port at one end of the main duct 200 communicating with the fan assembly 300. In this way, the port on one side of the main duct 200 can be large and the port on the other side can be small, so that when the fresh air in the main duct 200 enters the first air outlet duct 400 or the second air outlet duct 500, the siphon effect increases the circulation speed of the fresh air in the main duct 200 entering the first air outlet duct 400 or the second air outlet duct 500, thereby increasing the efficiency of fresh air entering the room.

[0047] It is worth noting that two side walls opposite to one end of the main duct 200 communicating with the first air outlet duct 400 and the second air outlet duct 500 have inclined surfaces.

[0048] Optionally, the adjustment component includes a drive motor and an opening and closing plate. The drive motor is disposed at the partition between the top of the first air outlet duct 400 and the second air outlet duct 500; the top of one side of the opening and closing plate is fixedly connected to the output end of the drive motor, and the bottom end is rotatably connected to the partition between the bottom ends of the first air outlet duct 400 and the second air outlet duct 500. In this way, the output end of the drive motor can drive the opening and closing plate to rotate toward the first air outlet duct 400 or toward the second air outlet duct 500, thereby closing the first air outlet duct 400 and opening the second air outlet duct 500, or opening the first air outlet duct 400 and closing the second air outlet duct 500, which is conducive to conveniently and quickly switching the opening or closing of the first air outlet duct 400 and the second air outlet duct 500.

[0049] It is worth noting that the driving motor and the opening and closing plate are both installed on the side of the partition plate 504 facing the main pipeline 200 .

[0050] Optionally, when the opening and closing plate rotates to the first position, the end thereof away from the driving motor is attached to an inclined surface on the main duct 200 close to the second air outlet duct 500, and when the opening and closing plate rotates to the second position, the opening and closing plate is perpendicular to the ports of the first air outlet duct 400 and the second air outlet duct 500. In this way, the second air outlet duct 500 can be closed by controlling the opening and closing plate to rotate to the first position so that one end of the opening and closing plate is attached to an inclined surface on the main duct 200 close to the second air outlet duct 500, thereby facilitating the opening and closing plate to rotate between the first position and the second position to open or close the second air outlet duct 500.

[0051] Optionally, the ends of the first air outlet duct 400 and the second air outlet duct 500 connected to the main duct 200 are symmetrically arranged with the partition plate 504 as the center, and are arranged in an inverted V shape. In this way, when the opening and closing plate is rotated to the first position, the end thereof away from the driving motor can be easily attached to an inclined surface of the main duct 200, thereby blocking and closing the second air outlet duct 500, and when the opening and closing plate is rotated to the second position, the end of the opening and closing plate away from the driving motor can be located on the same vertical plane as the ports of the first air outlet duct 400 and the second air outlet duct 500, so that the first air outlet duct 400 and the second air outlet duct 500 are separated into independent ventilation ducts at their ports, which is conducive to the fresh air in the main duct 200 entering the first air outlet duct 400 and the second air outlet duct 500 respectively, and entering the room after being filtered by the low-efficiency filter component 401 and the high-efficiency filter component 501, which can effectively improve the circulation efficiency and quality of the fresh air.

[0052] In some specific embodiments, the opening and closing plate can be controlled to rotate toward one side of the first air outlet duct 400 so that the end of the opening and closing plate away from the driving motor is attached to the other inclined surface of the main duct 200, thereby blocking and closing the first air outlet duct 400. At this time, fresh air can be introduced into the room through the second air outlet duct 500 alone. In this way, the fresh air entering the room can be filtered by the high-efficiency filter component 501 in the second air outlet duct 500, thereby improving the filtering effect of the fresh air and ensuring the quality of the air entering the room.

[0053] Optionally, the variable ventilation pipeline system for indoor purification further includes: an air detection component 600 and a controller component 700. The air detection component 600 is arranged indoors or at the connection between the main duct 200 and the first air outlet duct 400 and the second air outlet duct 500, and is used to obtain the cleanliness data of the passing air; the controller component 700 is connected to the high-efficiency filter component 501 and the air detection component 600, and the controller component 700 can control the sliding of the high-efficiency filter component 501 according to the cleanliness data detected by the air detection component 600. In this way, due to long-term ventilation, foreign matter such as dust contained in the indoor air will enter the first air outlet duct 400 and the second air outlet duct 500 and adhere to the inner walls of the two, which will cause ventilation congestion. Therefore, the air detection component 600 is used to detect and obtain the air cleanliness in the room or the main duct 200, so as to determine the air cleanliness in the room or the main duct 200, and then when the air cleanliness in the room or the main duct 200 is low, the controller component 700 can control the high-efficiency filter component 501 to slide into the first ventilation duct. , so that the first ventilation duct can be provided with an inefficient filter component 401 and a high-efficiency filter component 501, which facilitates filtering the wind in the second ventilation duct through multiple high-efficiency filter components 501, and filtering the wind in the first air outlet duct 400 through a filtering method in which the high-efficiency filter component 501 and the inefficient filter component 401 cooperate with each other, which is beneficial to improving the filtering efficiency of the wind in the first air outlet duct 400 and the second air outlet duct 500, and improving the ventilation of the two, so as to prevent ventilation blockage in the first air outlet duct 400 and the second air outlet duct 500.

[0054] Optionally, the air detection component 600 includes a particle counter 601. The particle counter 601 is arranged indoors to detect the cleanliness of the indoor air. In this way, it is convenient to detect the dust concentration contained in the indoor air in real time, and then determine the cleanliness of the indoor air, so as to provide an accurate control basis for controlling the sliding of the high-efficiency filter component 501.

[0055] It is worth noting that the higher the dust concentration in the air, the lower the cleanliness, and the lower the dust concentration, the higher the cleanliness. The level of air cleanliness can be distinguished by the air cleanliness level, and the relationship between the air cleanliness level and the dust concentration is as follows:

[0056]

[0057] Where N is the cleanliness level, the number shall not exceed 9, and the intermediate number between the cleanliness levels can be set as the minimum allowable increment of 0.1;

[0058] D is the particle size to be controlled, μm;

[0059] C nGreater than or equal to the maximum concentration limit of the required controlled particle size, pc / m 3 (grains / cubic meter),

[0060] The value is rounded to the nearest integer with no more than three significant digits.

[0061] For example, for cleanliness level 5, the maximum concentration limit for particles ≥ 0.5 μm is

[0062]

[0063] Optionally, the air detection component 600 further includes a humidity detector 602 for detecting indoor humidity data, and the controller component can control the air supply of the fan component 300 according to the humidity data. In this way, the indoor humidity data can be obtained through the humidity detector 602 to provide a better control basis for controlling the indoor ventilation, thereby facilitating the ventilation to better adjust the indoor humidity and improve the indoor humidity suitability.

[0064] It can be understood that the particle counter 601 and the humidity detector 602 are mature technologies in this field, and their specific structures and operating principles are well known to those skilled in the art. Therefore, the specific structures and operating principles of the particle counter 601 and the humidity detector 602 are not described in detail here.

[0065] For example, the indoor cleanliness requirement is level 3, which means the maximum concentration limit of particles ≥ 0.5 μm is 35 pc / m 3 , and when the first air outlet duct 400 is opened and the second air outlet duct 500 is closed, the cleanliness data in the first air outlet duct 400 detected by the air detection component 600 is 40 pc / m 3 , which is greater than the maximum concentration limit of 35pc / m in the indoor cleanliness requirement standard 3 At this time, part of the high-efficiency filter components 501 in the second air outlet duct 500 can be controlled to slide into the first air outlet duct 400, and cooperate with the low-efficiency filter components 401 in the first air outlet duct 400 to filter the wind passing through the first air outlet duct 400 to improve the cleanliness of the wind entering the room, thereby adjusting the cleanliness of the indoor air to finally meet the required standards; and when the cleanliness data in the first air outlet duct 400 detected by the air detection component 600 is 30pc / m 3 , which is less than the maximum concentration limit of 35pc / m2 required by the indoor cleanliness standard 3 At this time, there is no need to control the high-efficiency filter component 501 to slide into the first air outlet duct 400.

[0066] Optionally, the variable ventilation pipeline system for indoor purification further includes: a wind pressure detection component 800. The wind pressure detection component 800 is arranged in the main pipeline 200, and is used to obtain the wind pressure in the main pipeline 200, and the controller component 700 is connected with the wind pressure detection component 800 and the second air outlet pipeline 500, and can control the switch of the second air outlet pipeline 500 according to the wind pressure in the main pipeline 200. In this way, during the long-term ventilation process of the first air outlet duct 400, foreign matter such as dust contained in the indoor air will enter the first ventilation duct and adhere to its inner wall, which will reduce the ventilation efficiency, causing the wind pressure in the main duct 200 to increase and the operating power of the fan assembly 300 to increase. Therefore, the wind pressure in the main duct 200 is obtained through the wind pressure detection assembly 800, and the second air outlet duct 500 can be opened through the controller assembly 700 when the wind pressure in the main duct 200 increases and the indoor cleanliness is low, so as to supply air in the form of dual-pipe air outlet of the first air outlet duct 400 and the second air outlet duct 500, which is beneficial to avoid the accumulation of air in the main duct 200 during the air outlet process of the air outlet assembly, which can effectively improve the air supply efficiency, reduce the operating loss of the air outlet assembly, save the air supply cost, and at the same time, filter the indoor air during the circulation ventilation process to improve the cleanliness of the indoor air.

[0067] It can be understood that the controller assembly 700 is connected to the drive motor, and the controller assembly 700 can control the rotation of the drive motor according to the wind pressure in the main duct 200. In this way, when the wind pressure in the main duct 200 is relatively high, the controller assembly 700 can control the drive motor to rotate counterclockwise to open the second air outlet duct 500, thereby facilitating real-time control of the opening of the second air outlet duct 500 according to the wind pressure in the main duct 200, reducing the wind pressure in the main duct 200, and improving the efficiency of fresh air entering the room.

[0068] Optionally, the wind pressure detection component 800 is a wind pressure sensor. In this way, the wind pressure sensor is less affected by dynamic pressure and can measure moist, turbid gas or even liquid. Therefore, setting the wind pressure detection component 800 as a wind pressure sensor can more accurately and efficiently detect the wind pressure data in the main duct 200 and provide a basis for the controller component 700 to control the switch of the second air outlet duct 500.

[0069] It can be understood that the wind pressure sensor is a mature technology in this field, and its specific structure and operating principle are well known to those skilled in the art, so the specific structure and operating principle of the wind pressure sensor are not described in detail here.

[0070] For example, the set wind pressure in the main duct 200 is 100KN / ㎡. When the first air outlet duct 400 is opened and the second air outlet duct 500 is closed, as air is continuously supplied to the room, dust contained in the air will adhere to the inner wall of the first air outlet duct 400, causing congestion in the first air outlet duct 400. At this time, the fan assembly 300 will increase the operating power and supply air to the room at a high power, which will increase the wind pressure in the main duct 200. When the wind pressure detection assembly 800 detects that the main duct 200 is When the wind pressure in the duct 200 is 90KN / ㎡, there is no need to open the second air outlet duct 500; and when the wind pressure detection component 800 detects that the wind pressure in the main duct 200 is 120KN / ㎡, the real-time wind pressure of 120KN / ㎡ is greater than the set wind pressure of 100KN / ㎡, the drive motor can be controlled to rotate counterclockwise, open the second air outlet duct 500, and supply air to the room in the form of double air ducts, thereby reducing the wind pressure in the main duct 200 and reducing the power loss of the fan assembly 300.

[0071] In some specific embodiments, the controller component 700 can optionally control the opening of the opening and closing plate and the sliding of the high-efficiency filter component 501 according to the indoor cleanliness data and the wind pressure in the main duct 200. In this way, the opening and closing of the second air outlet duct 500 and the sliding of the high-efficiency filter component 501 can be controlled according to the indoor cleanliness data and the wind pressure in the main duct 200, so that the fresh air in the main duct 200 can be efficiently introduced into the room. At the same time, when the fresh air enters the room through the first air outlet duct 400 and the second air outlet duct 500, the low-efficiency filter component 401 and the high-efficiency filter component 501 cooperate with each other to filter the fresh air, which is conducive to improving the quality of the fresh air entering the room, ensuring the comfort of the indoor users, and avoiding the blockage of the first air outlet duct 400, thereby improving the circulation efficiency of the fresh air.

[0072] For example, the indoor cleanliness requirement is 30pc / m 3 The set wind pressure in the main duct 200 is 100KN / ㎡. When the air detection component 600 detects that the indoor cleanliness data is less than 30pc / m 3 , and the wind pressure in the main pipeline 200 is less than 100KN / m 3 At this time, the controller component 700 will control the opening of the opening and closing plate to zero, and there is no need to control the high-efficiency filter component 501 to slide into the first air outlet duct 400; when the indoor cleanliness data is less than 30pc / m 3 , and the wind pressure in the main pipe 200 is equal to 100KN / m 3 When the indoor cleanliness data is greater than 30pc / m 3 And less than 50pc / m3 , the wind pressure in the main pipeline 200 is greater than 100KN / m 3 And less than 150KN / m 3 When the indoor cleanliness data is greater than 30pc / m 3 And less than 50pc / m 3 , the wind pressure in the main pipeline 200 is less than 100KN / m 3 When the indoor cleanliness data is greater than 50pc / cubic meter, and the wind pressure in the main duct 200 is greater than 150KN / m 3 At this time, the controller component 700 will control the opening and closing plate to open to 90 degrees, and at the same time control part of the high-efficiency filter component 501 to slide into the first air outlet duct 400.

[0073] Combination Figure 7 As shown, the embodiment of the present disclosure provides a control method for a variable ventilation pipeline system for indoor purification, comprising:

[0074] S01, determine the indoor cleanliness requirements and the wind pressure in the main duct;

[0075] S02, according to the indoor cleanliness requirement and the wind pressure in the main duct, controlling the switches of the first air outlet duct and the second air outlet duct, and the positions of some high-efficiency filter components.

[0076] By adopting the control method of the variable ventilation duct system for indoor purification provided by the embodiment of the present disclosure, due to the long-term circulation ventilation, foreign matter such as dust contained in the indoor air will enter the first air outlet duct and the second air outlet duct, causing ventilation congestion in both, and increasing the wind pressure in the main duct. Therefore, when the indoor cleanliness requirement is high and the wind pressure in the main duct is high, the first air outlet duct and the second air outlet duct are controlled to be opened at the same time, and some high-efficiency filter components are controlled to enter the first air outlet duct, which can not only supply air to the room in the form of dual air ducts, but also filter the wind flowing into the room, reduce the wind pressure in the main duct, and improve the efficiency and cleanliness of the air supply; when the indoor cleanliness requirement is low and the wind pressure in the main duct is low, the first air outlet duct can be controlled to be opened and the second air outlet duct can be closed, and air can be supplied to the room in the form of a single air duct, which is beneficial to reduce the operating loss of the fan and save air supply costs.

[0077] For example, the indoor cleanliness requirement is 30pc / m 3 The set wind pressure in the main duct is 100KN / ㎡. When the indoor cleanliness data is detected to be less than 30pc / m3 , and the wind pressure in the main pipeline is less than 100KN / m 3 At this time, the opening of the second air outlet duct is controlled to be zero, and there is no need to control the high-efficiency filter component to slide into the first air outlet duct; when the indoor cleanliness data is less than 30pc / m 3 , and the wind pressure in the main duct is equal to 100KN / m 3 At this time, the opening of the second air outlet duct is controlled to open to 30°, and there is no need to control the high-efficiency filter component to slide into the first air outlet duct; when the indoor cleanliness data is greater than 30pc / m 3 And less than 50pc / m 3 , the wind pressure in the main pipeline is greater than 100KN / m 3 And less than 150KN / m 3 At this time, the second air outlet duct is controlled to open to 60°, and part of the high-efficiency filter components are controlled to slide into the first air outlet duct; and when the indoor cleanliness data is greater than 30pc / m 3 And less than 50pc / m 3 , the wind pressure in the main pipeline is less than 100KN / m 3 At this time, the high-efficiency filter components are controlled to slide into the first air outlet duct; when the indoor cleanliness data is greater than 50pc / cubic meter, and the wind pressure in the main duct is greater than 150KN / m 3 At this time, the second air outlet duct is controlled to open to 90 degrees, and at the same time, part of the high-efficiency filter components are controlled to slide into the first air outlet duct.

[0078] Optionally, determine the cleanliness requirements for the room, including:

[0079] Get the target operation that the user is currently or about to perform indoors;

[0080] The cleanliness requirement corresponding to the target execution operation is determined according to the corresponding relationship between the execution operation and the cleanliness requirement.

[0081] In this way, the determined cleanliness requirement can be matched with the target execution operation, so that the cleanliness can meet the user's current or upcoming execution operation requirements indoors, which is beneficial to improving the quality of indoor ventilation and improving the user's experience.

[0082] Optionally, obtaining the target execution operation that the user is currently or will be performing indoors is to obtain the target execution operation input by the user through an interactive device, or to obtain the target execution operation that is currently or will be performing indoors in real time through a monitoring device. In this way, it is convenient to obtain the execution operation that the user is currently or will be performing indoors, and provide a control basis for adjusting the cleanliness of the room.

[0083] For example, the user is currently or is about to conduct a biological experiment indoors, and biological experiments have relatively high requirements for air cleanliness. Therefore, the user can input the content of the "biological experiment" that is currently or is about to be conducted through the interactive device, thereby determining that the target execution operation that the user is currently or is about to perform indoors is "biological experiment operation"; or by controlling the monitoring device to obtain the user's location as an "electronic equipment production workshop", it can be determined that the target execution operation that is currently or is about to be performed indoors is "electronic production operation".

[0084] For another example, the execution operation is "microbiological experiment", and its corresponding cleanliness requirement is "cleanliness level 3"; the execution operation is "electronic equipment production", and its corresponding cleanliness requirement is "cleanliness level 4"; the execution operation is "daily administrative office", and its corresponding cleanliness requirement is "cleanliness level 5"; therefore, after determining that the target execution operation is "microbiological experiment", it can be determined that the cleanliness requirement corresponding to the target execution operation is "cleanliness level 3"; after determining that the target execution operation is "electronic equipment production", it can be determined that the cleanliness requirement corresponding to the target execution operation is "cleanliness level 4"; after determining that the target execution operation is "daily administrative office", it can be determined that the cleanliness requirement corresponding to the target execution operation is "cleanliness level 5".

[0085] Combination Figure 8 As shown, S02, optionally, according to the indoor cleanliness requirement and the wind pressure in the main duct, the switch of the first air outlet duct and the second air outlet duct, as well as the position of some high-efficiency filter components are controlled, including:

[0086] S21, when it is determined that the cleanliness requirement is less than a first set threshold, the first air outlet duct is controlled to be opened, the second air outlet duct is controlled to be closed, and all high-efficiency filter components are controlled to be located in the second air outlet duct;

[0087] S22, when it is determined that the cleanliness requirement is greater than or equal to the first set threshold value and less than or equal to the second set threshold value, the first air outlet duct is controlled to be opened, and part of the high-efficiency filter components slide into the first air outlet duct, and the second air outlet duct is controlled to be opened or closed according to the wind pressure in the main duct;

[0088] S23, when it is determined that the cleanliness requirement is greater than a second set threshold, the first air outlet duct is controlled to be closed, the second air outlet duct is controlled to be opened, and all the high-efficiency filter components are controlled to be located in the second air outlet duct.

[0089] In this way, the first air outlet duct, the second air outlet duct and the high-efficiency filter component can be efficiently and accurately regulated so that the first air outlet duct and the second air outlet duct cooperate with each other and ventilate. At the same time, the low-efficiency filter component in the first ventilation duct and the high-efficiency filter component in the second ventilation duct cooperate with each other to filter the passing wind, thereby improving the cleanliness of ventilation to the room, and ensuring the patency of the first ventilation duct and the second ventilation duct, reducing the wind pressure in the main duct and reducing the power loss of the fan component.

[0090] Optionally, determining the indoor cleanliness requirement is to obtain the indoor cleanliness through an air detection component. In this way, the indoor cleanliness requirement can be obtained in real time through the air detection component, thereby providing a basis for controlling the sliding of the first air outlet duct, the second air outlet duct and the high-efficiency filter component.

[0091] It can be understood that the air detection component is a particle counter, and the particle counter is a mature technology in this field, and its specific structure and operating principle are well known to those skilled in the art, so the specific structure and operating principle of the particle counter are not described in detail here.

[0092] Optionally, the wind pressure in the main duct is determined by obtaining it through a wind pressure detection component. In this way, the wind pressure inside the main duct can be obtained in real time through the wind pressure detection component in the main duct, thereby providing a basis for controlling the switch of the second air outlet duct.

[0093] Optionally, the wind pressure detection component is a wind pressure sensor. In this way, the wind pressure sensor is less affected by dynamic pressure and can measure moist, turbid gas or even liquid. Therefore, setting the wind pressure detection component as a wind pressure sensor can more accurately and efficiently detect the wind pressure data in the main duct and provide a basis for controlling the switch of the second air outlet duct.

[0094] It can be understood that the wind pressure sensor is a mature technology in this field, and its specific structure and operating principle are well known to those skilled in the art, so the specific structure and operating principle of the wind pressure sensor are not described in detail here.

[0095] It is worth noting that the higher the dust concentration in the air, the lower the cleanliness, and the lower the dust concentration, the higher the cleanliness. The level of air cleanliness can be distinguished by the air cleanliness level, and the relationship between the air cleanliness level and the dust concentration is as follows:

[0096]

[0097] Where N is the cleanliness level, the number shall not exceed 9, and the intermediate number between the cleanliness levels can be set as the minimum allowable increment of 0.1;

[0098] D is the particle size to be controlled, μm;

[0099] C n Greater than or equal to the maximum concentration limit of the required controlled particle size, pc / m 3 (grains / cubic meter),

[0100] The value is rounded to the nearest integer with no more than three significant digits.

[0101] For example, for cleanliness level 5, the maximum concentration limit for particles ≥ 0.5 μm is

[0102]

[0103] Optionally, the first set threshold and the second set threshold can be set according to the actual application scenario. For example, when the actual application scenario is a "biological laboratory", the required cleanliness level of the "biological laboratory" is 3, and the maximum concentration limit of particles is 35pc / m 3 According to the application scenario of "biological laboratory", the first threshold value can be set to 35, the second threshold value can be set to 40, and then the indoor cleanliness detected by the air detection component is 32pc / m 3 , when the indoor cleanliness is less than the first set threshold value of 35, the first air outlet duct can be controlled to be opened, the second air outlet duct can be closed, and the high-efficiency filter components can be controlled to be located in the second air outlet duct; when the air detection component detects that the indoor cleanliness is 38pc / m 3 When the indoor cleanliness is greater than the first set threshold value of 35 and less than the second set threshold value of 40, the first air outlet duct can be controlled to open, and part of the high-efficiency filter components can slide into the first air outlet duct. At the same time, the switch of the second air outlet duct is controlled according to the wind pressure in the main duct; when the air detection component detects that the indoor cleanliness is 42pc / m 3 When the indoor cleanliness is greater than the second set threshold value 40, the first air outlet duct and the second air outlet duct can be controlled to be closed, and the high-efficiency filter components can be controlled to be completely located in the second air outlet duct. In this way, by variously switching the first air outlet duct and the second air outlet duct and controlling the high-efficiency filter components to slide partially or completely into the first air outlet duct, it is conducive to forming a diversified air supply, improving the effect of indoor circulation ventilation, and ensuring that the indoor air is neutralized by the introduced fresh air until the required indoor cleanliness requirements are met.

[0104] Optionally, when it is determined that the wind pressure in the main duct is less than a preset wind pressure value, the second air outlet duct is controlled to be closed; when it is determined that the wind pressure in the main duct is greater than or equal to the preset wind pressure value, the second air outlet duct is controlled to be opened.

[0105] In this way, the switch of the second air outlet duct can be accurately regulated according to the relationship between the wind pressure in the main duct and the preset wind pressure value, so that when the wind pressure in the main duct is relatively large, the second air outlet duct can be opened to form dual-duct ventilation with the first air outlet duct; and when the wind pressure in the main duct is relatively small, the second air outlet duct is controlled to be closed to avoid the first air outlet duct and the second air outlet duct being opened at the same time, so as to supply air separately through the first air outlet duct, which is beneficial to reduce the wind pressure in the main duct, reduce the power loss of the fan assembly, and effectively improve the air supply efficiency.

[0106] It is worth mentioning that, due to long-term ventilation, the dust contained in the indoor air will adhere to the inner wall of the first air outlet duct, hindering the ventilation of the first air outlet duct and causing the wind pressure in the main duct to increase. At this time, the fan assembly will supply air to the first air outlet duct with a greater operating power. Therefore, the switch of the second air outlet duct is controlled according to the wind pressure in the main duct. When the wind pressure in the main duct is low, the second air outlet duct can be closed, and when the wind pressure in the main duct is high, the second air outlet duct can be opened, which is beneficial to reduce the operating power loss of the fan assembly and save air supply costs. At the same time, the introduction of fresh air into the room in the form of dual-pipe air supply of the first air outlet duct and the second air outlet duct can effectively improve the ventilation effect and quickly improve the indoor cleanliness to the required level.

[0107] For example, the preset wind pressure value is 100, and the wind pressure detection component detects that the wind pressure in the main duct is 90KN / ㎡, at this time the wind pressure 90KN / ㎡ in the main duct is less than the preset wind pressure value 100, and the second air outlet duct can be controlled to be closed; when the wind pressure detection component detects that the wind pressure in the main duct is 100KN / ㎡, at this time the wind pressure 100KN / ㎡ in the main duct is equal to the preset wind pressure value 100, and the second air outlet duct can be controlled to be opened; when the wind pressure detection component detects that the wind pressure in the main duct is 120KN / ㎡, at this time the wind pressure 120KN / ㎡ in the main duct is greater than the preset wind pressure value 100, and the second air outlet duct can be controlled to be opened, which is beneficial to reduce the wind pressure in the main duct, reduce the power loss of the fan component, and improve ventilation efficiency.

[0108] Optionally, after controlling the second air outlet duct to be opened, the method further includes:

[0109] Obtain indoor humidity data and control the air supply volume based on the humidity data.

[0110] In this way, when the indoor humidity is high, the air supply volume can be increased to prevent the indoor humidity from being too high and improve the indoor suitability.

[0111] Optionally, the indoor humidity data is obtained by a humidity detector. In this way, the indoor humidity data can be obtained conveniently and quickly by the humidity detector, and a basis can be provided for controlling the air supply volume.

[0112] It can be understood that the humidity detector is a mature technology in this field, and its specific structure and operating principle are well known to those skilled in the art, so the specific structure and operating principle of the humidity detector are not described in detail here.

[0113] Optionally, the air supply volume is controlled according to the humidity data, including:

[0114] When it is determined that the indoor humidity value is less than the first set value, the operating power of the fan assembly is reduced to reduce the air supply to the room;

[0115] When it is determined that the indoor humidity value is greater than or equal to the first set value, the operating power of the fan assembly is increased to increase the air supply volume to the room.

[0116] In this way, the amount of fresh air introduced into the room can be adjusted by reducing or increasing the operating power of the fan assembly, which is helpful to control the excessive or insufficient humidity in the room and improve the suitability of the room.

[0117] It is worth noting that since different application scenarios have different requirements for humidity, the first set value can be determined according to the actual application scenario; for example, the application scenario is a "textile factory", and the humidity requirement is that the relative humidity is controlled at 50%, so the first set value can be set to 50; or the application scenario is an "office building", and the humidity requirement is that the relative humidity is controlled at 30%, so the first set value can be set to 30.

[0118] Combination Fig. 9 As shown, an embodiment of the present disclosure provides a variable ventilation pipeline system for indoor purification, including a processor (processor) 100 and a memory (memory) 101. Optionally, the device may also include a communication interface (Communication Interface) 102 and a bus 103. Among them, the processor 100, the communication interface 102, and the memory 101 can communicate with each other through the bus 103. The communication interface 102 can be used for information transmission. The processor 100 can call the logic instructions in the memory 101 to execute the control method of the variable ventilation pipeline system for indoor purification of the above embodiment.

[0119] In addition, the logic instructions in the memory 101 described above may be implemented in the form of software functional units and when sold or used as independent products, may be stored in a computer-readable storage medium.

[0120] The memory 101 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 100 executes the function application and data processing by running the program instructions / modules stored in the memory 101, that is, the control method of the variable ventilation pipeline system for indoor purification in the above embodiment is realized.

[0121] The memory 101 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 101 may include a high-speed random access memory and may also include a non-volatile memory.

[0122] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the control method of the variable ventilation duct system for indoor purification.

[0123] The computer-readable storage medium mentioned above may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0124] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transient storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and other media that can store program codes, or a transient storage medium.

[0125] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0126] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0127] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0128] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A variable ventilation pipe system for indoor purification, installed on the floor deck of a building, characterized in that: include: Main pipeline (200); A fan assembly (300), the air outlet end of which is in communication with the main duct (200), or is disposed in the main duct (200); A first air outlet duct (400) is in communication with the main duct (200) and is provided with a low-efficiency filter assembly (401) therein; The second air outlet duct (500) is arranged side by side with the first air outlet duct (400) and is in communication with the main duct (200), and is provided with a plurality of high-efficiency filter components (501) inside, wherein some of the high-efficiency filter components (501) can slide into the first air outlet duct (400); An air detection component (600) is arranged indoors or at the connection between the main duct (200) and the first air outlet duct (400) and the second air outlet duct (500), and is used to obtain cleanliness data of the passing air; The controller component (700) is connected to the high-efficiency filter component (501) and the air detection component (600), and the controller component (700) can control the sliding of the high-efficiency filter component (501) according to the cleanliness data detected by the air detection component (600).

2. The variable ventilation pipeline system for indoor purification according to claim 1, characterized in that: An adjustment component is provided at the connection ports of the first air outlet duct (400) and the second air outlet duct (500) and the main duct (200), and is used to open or close the second air outlet duct (500).

3. The variable ventilation pipeline system for indoor purification according to claim 2, characterized in that: The adjustment components include: A driving motor is arranged at a separation point between the top ends of the first air outlet duct (400) and the second air outlet duct (500); The top end of one side of the opening and closing plate is fixedly connected to the output end of the driving motor, and the bottom end is rotatably connected to the partition between the bottom ends of the first air outlet duct (400) and the second air outlet duct (500).

4. The variable ventilation pipeline system for indoor purification according to claim 1, characterized in that: Also includes: The wind pressure detection component (800) is arranged in the main duct (200) and is used to obtain the wind pressure in the main duct (200), and the controller component (700) is connected to the wind pressure detection component (800) and the second air outlet duct (500) and can control the opening and closing of the second air outlet duct (500) according to the wind pressure in the main duct (200).

5. A control method for a variable ventilation pipeline system for indoor purification, used to control the variable ventilation pipeline system for indoor purification according to any one of claims 1 to 4, characterized in that: include: Determine the indoor cleanliness requirements and the wind pressure in the main duct; According to the indoor cleanliness requirements and the wind pressure in the main duct, the switches of the first air outlet duct and the second air outlet duct, as well as the positions of some high-efficiency filtering components are controlled.

6. The control method of the variable ventilation pipeline system for indoor purification according to claim 5, characterized in that: Determine the cleanliness requirements of the room, including: Get the target operation that the user is currently or about to perform indoors; The cleanliness requirement corresponding to the target execution operation is determined according to the corresponding relationship between the execution operation and the cleanliness requirement.

7. The control method of the variable ventilation pipeline system for indoor purification according to claim 5, characterized in that: According to the indoor cleanliness requirements and the wind pressure in the main duct, control the switch of the first air outlet duct and the second air outlet duct, as well as the position of some high-efficiency filter components, including: When it is determined that the cleanliness requirement is less than a first set threshold, the first air outlet duct is controlled to be opened, the second air outlet duct is controlled to be closed, and all high-efficiency filter components are controlled to be located in the second air outlet duct; When it is determined that the cleanliness requirement is greater than or equal to the first set threshold value and less than or equal to the second set threshold value, the first air outlet duct is controlled to be opened, and part of the high-efficiency filter components slide into the first air outlet duct, and the switch of the second air outlet duct is controlled according to the wind pressure in the main duct; When it is determined that the cleanliness requirement is greater than the second set threshold, the first air outlet duct is controlled to be closed, the second air outlet duct is controlled to be opened, and all the high-efficiency filter components are controlled to be located in the second air outlet duct.

8. The control method of the variable ventilation pipeline system for indoor purification according to claim 7, characterized in that: When it is determined that the wind pressure in the main duct is less than a preset wind pressure value, the second air outlet duct is controlled to be closed; when it is determined that the wind pressure in the main duct is greater than or equal to the preset wind pressure value, the second air outlet duct is controlled to be opened.

9. A variable ventilation pipeline system for indoor purification, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the control method of the variable ventilation duct system for indoor purification according to any one of claims 5 to 8 when running the program instructions.

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