Air supply structure, air supply system, koji room and air supply control method

Abstract

The invention relates to the technical field of air conditioning, in particular to an air supply structure, an air supply system, a koji room and an air supply control method. The air supply structure comprises an air supply branch pipe, a first air valve assembly and a second air valve assembly. One end of the air supply branch pipe is an air inlet end, and an air supply section with a plurality of air supply holes in the pipe wall is formed on the air supply branch pipe; the first air valve assembly comprises a first driving mechanism and a first air valve arranged in the air supply section, and the first driving mechanism is configured to drive the first air valve to move in the air supply section so as to be close to or away from the air inlet end; the second air valve assembly comprises a second air valve arranged in the air supply section, and the second air valve is located between the first air valve and the air inlet end. According to the method, targeted air supply can be conducted on the local heating area in the space, unnecessary whole-area air supply is reduced, cooling capacity is concentrated in the hot spot area, the method can adapt to constantly-changing hot spot positions, and the air supply area and the air supply amount can be adjusted.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to an air supply structure, an air supply system, a curved room and an air supply control method. Background Art

[0002] The cultural concept of "qu is the bone of wine" emphasizes the core position of qu in winemaking. As an important auxiliary material for winemaking, the quality of qu directly affects the flavor and quality of wine. Traditional qu is made from moldy or germinated grains. After improvement, the qu industry has not only made breakthroughs in processing technology, but also combined modern science and technology, especially in the precise control of temperature and humidity, which has greatly improved the quality of qu. Take Daqu as an example. Daqu is a kind of qu commonly used in distilled wine brewing, usually made into brick shape. The production process of Daqu includes steps such as moistening, mixing, and treading qu, and finally forming brick-shaped qu blocks. After that, the qu blocks are sent to the closed qu room. During the cultivation process, microorganisms multiply and generate heat, which in turn affects the temperature and humidity in the qu room. According to the different cultivation temperatures, Daqu can be divided into medium and high temperature qu (not exceeding 50℃), high temperature qu (can exceed 50℃) and ultra-high temperature qu (60-65℃). In the production process of Daqu, the stacking method of qu blocks and the influence of bacterial metabolism on temperature are important factors that promote the development of Daqu to high temperature qu.

[0003] In the traditional Daqu production process, the koji blocks are stacked in the koji room at a certain distance, with a distance of 2-3 cm between the left and right sides, and 12 cm thick straw or reed stalks are laid on each layer of koji blocks, which helps to maintain temperature and humidity and ensure the quality of the koji. In this multi-layer stacking structure, the spacing between the koji blocks and the setting of the layer height are the key to maintaining a balanced temperature and humidity. However, despite these measures, the existing technology still faces the problem of uneven temperature distribution.

[0004] Specifically, in a multi-layer stacking environment, there are many koji blocks on the koji rack, they are densely stacked, and the heat dissipation of each koji block is uncontrollable, which leads to temperature differences between koji blocks at different heights, especially between the upper and lower layers. Due to the compactness of the stacking structure, temperature conduction is limited, and local hot spots are easily formed in certain specific locations. The formation of these local hot spots will have a negative impact on the fermentation process of the koji, causing the microorganisms in the area with too high temperature to metabolize too quickly, affecting the fermentation quality of the koji, thereby reducing the overall quality of the koji.

[0005] Although related technologies attempt to achieve a balanced temperature distribution by controlling the environment through temperature sensors, ventilation, and air conditioning, the local hotspot problem is still difficult to solve effectively due to the dense stacking of koji blocks, and the location of local hotspots will appear at different heights at different times. Therefore, how to eliminate local hotspots generated at different times and at different heights in the case of multi-layer stacking has become a key technical issue in improving the quality of koji production. Summary of the invention

[0006] In order to solve the above technical problems, the present application provides an air supply structure, an air supply system, a curved room and an air supply control method.

[0007] According to a first aspect of the present application, an embodiment of the present application provides an air supply structure, which includes:

[0008] An air supply branch pipe, one end of which is an air inlet end, and the air supply branch pipe is formed with an air supply section having a plurality of air supply holes formed on the pipe wall;

[0009] A first air valve assembly, comprising a first driving mechanism and a first air valve disposed in the air supply section, wherein the first driving mechanism is configured to drive the first air valve to move in the air supply section to approach or move away from the air inlet end;

[0010] The second air valve assembly includes a second air valve arranged in the air supply section, and the second air valve is located between the first air valve and the air inlet end.

[0011] Furthermore, the aperture of the air supply hole tends to decrease along the direction away from the air inlet end.

[0012] Furthermore, along the direction away from the air inlet end, the distribution density of the air supply holes shows an increasing trend.

[0013] Furthermore, the second air valve assembly also includes a second driving mechanism, and the second driving mechanism is configured to drive the second air valve to move within the air supply section to approach or move away from the first air valve.

[0014] According to the second aspect of the present application, an air supply system is also provided, which includes an air-conditioning unit, an air supply main pipe and the air supply structure provided by the first aspect of the present application, wherein the air inlet end of the air supply branch pipe is connected to the air supply main pipe, and the air-conditioning unit is configured to supply air into the air supply branch pipe through the air supply main pipe.

[0015] According to the third aspect of the present application, a curved room is also provided, which includes a room body and a curved frame arranged in the room body, and also includes the air supply system provided in the third aspect of the present application, wherein the air supply section of the air supply branch pipe is located between the curved frames.

[0016] According to a fourth aspect of the present application, the present application further provides an air supply control method, which is implemented by the air supply structure provided in the first aspect of the present application, wherein a first air supply section is formed between the first air valve and an end of the air supply section away from the air inlet end, a second air supply section is formed between the first air valve and the second air valve, and a third air supply section is formed between the second air valve and an end of the air supply section close to the air inlet end. The air supply control method includes:

[0017] The openings of the first air valve and the second air valve are controlled, and the first air valve is controlled to move within the air supply section to adjust the length of the first air supply section and the length of the second air supply section.

[0018] Furthermore, the air supply control method further includes:

[0019] The first air valve and the second air valve are controlled to move in the air supply section to adjust the length of the first air supply section, the length of the second air supply section, and the length of the third air supply section.

[0020] Furthermore, the air supply control method has an overall air supply mode, and the overall air supply mode includes:

[0021] The first air valve and the second air valve are controlled to be fully opened.

[0022] Furthermore, the overall air supply mode also includes: controlling the first air valve to be located at an end of the air supply section away from the air inlet end, and the length of the first air supply section is 0.

[0023] Furthermore, the air supply control method has a stratified air supply mode, and the stratified air supply mode includes:

[0024] The opening degrees of the first air valve and the second air valve are controlled to be between 0-100%.

[0025] The position of the first air valve in the air supply section is adjusted so that the length of the first air supply section and the length of the second air supply section are both greater than 0.

[0026] Furthermore, the stratified air supply mode also includes:

[0027] The positions of the first air valve and the second air valve in the air supply section are adjusted so that at least two of the length of the first air supply section, the length of the second air supply section, and the length of the third air supply section are greater than 0.

[0028] Furthermore, the air supply control method has a single-layer air supply mode, and the single-layer air supply mode includes:

[0029] Controlling the opening of the first air valve to be 0, and controlling the opening of the second air valve to be greater than 0;

[0030] The positions of the first air valve and the second air valve in the air supply section are adjusted so that the length of the second air supply section is greater than 0 and the length of the third air supply section is 0.

[0031] The air supply structure provided by the present application can effectively deal with variable hot spot areas by coordinating the cooperation of the first air valve and the second air valve, especially in the case of local hot spots that will be generated in different height areas in the height direction over time. The range of the air supply area can be controlled by adjusting the position of the first air valve in combination with the adjustment of the opening of the first air valve and the second air valve. By adjusting the opening of the second air valve to 0, the airflow in the third air supply section cannot enter the second air supply section and the first air supply section, and the air supply area is only the third air supply section, which can meet the air supply and heat dissipation needs when hot spots are generated at higher positions; by adjusting the opening of the second air valve to not 0 and the opening of the first air valve to 0, the airflow in the third air supply section can enter the second air supply section, but cannot enter the first air supply section, and the area responsible for external air supply is only the second air supply section and The third air supply section, at this time when the first air valve is close to the air inlet end, the length of the second air supply section decreases and the air supply area becomes smaller, and when the first air valve is far away from the air inlet end, the length of the second air supply section increases, and the air supply area increases, so that the air supply position and the air supply area can be accurately regulated. The second air supply section can meet the air supply and heat dissipation needs when hot spots are generated at the middle height position, and the air supply volume of the second air supply section can be increased by increasing the opening of the second air valve, or the air supply volume of the second air supply section can be reduced by reducing the opening of the second air valve, so as to achieve adaptive adjustment according to the heat generation of the local hot spot area. Targeted air supply can be carried out to local heating areas in the space, reducing unnecessary air supply in the entire area and concentrating cooling capacity in the hot spot area. Compared with the overall air supply and cooling of the entire space, the local hot spot problem can be quickly solved, and the temperature distribution in the space can be uniform while reducing the demand for cooling capacity to achieve energy saving and carbon reduction goals. In addition, as time goes by, the height of the area where the hot spot is generated changes. The opening of the first air valve and the second air valve and the position of the first air valve can be adjusted to achieve the change of the height of the air supply area relative to the local hot spot, and the air supply area and air supply volume can be adjusted to ensure that the temperature of the overall environment remains within the required range. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0033] Figure 1The internal structure diagram of the air supply structure provided in the embodiment of the present application is schematically given;

[0034] Figure 2 The internal structure diagram of the air supply structure provided in the embodiment of the present application in a working state is schematically shown;

[0035] Figure 3 The internal structure diagram of the air supply structure provided in the embodiment of the present application in another working state is schematically shown;

[0036] Figure 4 The internal structure diagram of the air supply structure provided in the embodiment of the present application in the layered air supply mode is schematically shown;

[0037] Figure 5 The internal structure diagram of the air supply structure provided in the embodiment of the present application in the overall air supply mode is schematically shown;

[0038] Figure 6 The internal structure diagram of the air supply structure provided in the embodiment of the present application in the overall air supply mode is schematically shown;

[0039] Figure 7 The internal structure diagram of the air supply structure provided in the embodiment of the present application in the single-layer air supply mode is schematically shown;

[0040] Figure 8 The internal structure diagram of the Qufang provided in the embodiment of the present application is schematically given.

[0041] In the figure:

[0042] 100. Air supply branch pipe;

[0043] 110, air inlet end;

[0044] 120, air supply section;

[0045] 121, first air supply section;

[0046] 122, second air supply section;

[0047] 123. The third air supply section;

[0048] 130. Air supply hole;

[0049] 210, first air valve;

[0050] 220, rotating actuator;

[0051] 230, telescopic pull rod;

[0052] 310, second air valve;

[0053] 400. Air supply supervisor;

[0054] 500, house body;

[0055] 600. Music stand. DETAILED DESCRIPTION

[0056] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0057] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a system, product or device comprising a series of units is not necessarily limited to those units explicitly listed, but may include units that are not explicitly listed or inherent to these products or devices.

[0058] In this application, the directions or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", etc. are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.

[0059] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0060] 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 this application can be understood according to specific circumstances.

[0061] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0062] According to the description in the background technology section of this application, in the related technology, local hot spots will be formed at different heights in the environment at different times, and targeted air supply and heat dissipation of the local hot spots are required. The way of controlling the environmental temperature through temperature sensors, ventilation, air conditioning and other means is often to perform overall heat exchange on the temperature in the entire space, and it is impossible to achieve targeted air supply and heat dissipation of hot spots at specific heights. Even if targeted air supply and heat dissipation of hot spots at specific heights is achieved, the height of the area where the hot spots are generated will change over time, and it is difficult for existing air supply devices to adjust the air supply area in a targeted manner, resulting in lag and inaccuracy in temperature control.

[0063] Based on this, the embodiment of the present application provides an air supply structure, such as Figure 1-7 As shown, the air supply structure mainly includes an air supply branch pipe 100, a first air valve 210 assembly and a second air valve 310 assembly. The air supply structure provided in this embodiment can be applied to places where the temperature of some areas needs to be controlled in a targeted manner, such as laboratories, industrial process spaces, storage environments, fungal culture environments, etc., and is particularly suitable for local area temperature control scenarios in spaces where objects are stacked.

[0064] In the air supply structure, one end of the air supply branch pipe 100 is the air inlet end 110, and a part of the air supply branch pipe 100 is formed as an air supply section 120, and a plurality of air supply holes 130 are opened on the pipe wall of the air supply section 120; the first air valve 210 assembly includes a first driving mechanism and a first air valve 210 arranged in the air supply section 120, and the first driving mechanism is configured to drive the first air valve 210 to move in the air supply section 120 to approach or move away from the air inlet end 110; the second air valve 310 assembly includes a second air valve 310 arranged in the air supply section 120, and the second air valve 310 is located between the first air valve 210 and the air inlet end 110.

[0065] The air supply section 120 includes a first air supply section 121, a second air supply section 122 and a third air supply section 123 connected in sequence. Specifically, the first air supply section 121 is formed between the first air valve 210 and an end of the air supply section 120 away from the air inlet end 110, the second air supply section 122 is formed between the first air valve 210 and the second air valve 310, and the third air supply section 123 is formed between the second air valve 310 and an end of the air supply section 120 close to the air inlet end 110. It should be noted that the first air supply section 121, the second air supply section 122 and the third air supply section 123 are divisions of the air supply section 120 according to the positions of the first air valve 210 and the second air valve 310, and their lengths may change with the position of the first air valve 210 or the second air valve 310, and their lengths may be 0. For example, when the first air valve 210 is located at one end of the air supply section 120 away from the air inlet end 110, the length of the first air supply section 121 is 0, when the first air valve 210 and the second air valve 310 are close together, the length of the second air supply section 122 is 0, and when the second air valve 310 is located at one end of the air supply section 120 close to the air inlet end 110, the length of the third air supply section 123 is 0.

[0066] In this embodiment, the air inlet end 110 of the air supply branch pipe 100 is directly or indirectly connected to the air source device (such as a fan or an air conditioning system). A plurality of air supply holes 130 are provided on the pipe wall of the air supply branch pipe 100, and these air supply holes 130 are used to introduce the air in the air supply branch pipe 100 into a specific area outside the pipe. The length of the air supply section 120 and the number and size of the air supply holes 130 can be designed and adjusted according to actual needs to ensure the spatial distribution of the air supply volume.

[0067] The first air valve 210 assembly includes a first driving mechanism and a first air valve 210 disposed in the air supply section 120. The driving mode of the first driving mechanism includes but is not limited to electric driving, pneumatic driving and hydraulic driving, and is configured to drive the first air valve 210 to reciprocate along the extension direction of the air supply section 120 in the air supply section 120, thereby adjusting the position of the first air valve 210 in the air supply section 120, thereby achieving the purpose of adjusting the length of the first air supply section 121 and the length of the second air supply section 122. The second air valve 310 assembly includes a second air valve 310, which is disposed in the air supply section 120 and is located between the first air valve 210 and the air inlet end 110. The second air valve 310 can further adjust the air circulation speed and air volume by controlling the opening, ensuring the flexibility and adaptability of the air supply structure.

[0068] By coordinating the cooperation of the first air valve 210 and the second air valve 310, it is possible to effectively cope with variable hot spots, especially in the case of local hot spots that will be generated in different height areas in the height direction over time. Specifically, by adjusting the position of the first air valve 210 and combining the adjustment of the opening of the first air valve 210 and the second air valve 310, the range of the air supply area can be controlled. For example, by adjusting the opening of the second air valve 310 to 0, the airflow in the third air supply section 123 cannot enter the second air supply section 122 and the first air supply section 121, and the air supply area is only the third air supply section 123, that is, the highest area position in the figure, which can cope with the air supply and heat dissipation needs when hot spots are generated at higher positions; for another example, by adjusting the opening of the second air valve 310 not to 0, the opening of the first air valve 210 is 0, the airflow in the third air supply section 123 can enter the second air supply section 122, but cannot enter the first air supply section 121, which is responsible for external air supply. The area is only the second air supply section 122 and the third air supply section 123. At this time, when the first air valve 210 is close to the air inlet end 110, the length of the second air supply section 122 is reduced and the air supply area becomes smaller. When the first air valve 210 is far away from the air inlet end 110, the length of the second air supply section 122 is increased, and the air supply area is increased, so that the air supply position and the air supply area can be accurately controlled. The second air supply section 122 can meet the air supply and heat dissipation needs when a hot spot is generated at a mid-height position, and the air supply volume of the second air supply section 122 can be increased by increasing the opening of the second air valve 310, or the air supply volume of the second air supply section 122 can be reduced by reducing the opening of the second air valve 310, so as to achieve adaptive adjustment according to the heat generation of the local hot spot area.

[0069] Through the air supply structure in the above embodiment, targeted air supply can be carried out to the local heating area in the space, reducing unnecessary air supply in the whole area and concentrating the cooling capacity in the hot spot area. Compared with the overall air supply and cooling of the whole space, the local hot spot problem can be quickly solved, and the temperature distribution in the space can be uniform while reducing the cooling capacity demand to achieve energy saving and carbon reduction goals; in addition, as time goes by, the height of the area where the hot spot is generated changes, and the opening of the first air valve 210 and the second air valve 310 and the position of the first air valve 210 can be adjusted to achieve the change of the height of the air supply area relative to the local hot spot. That is, the present embodiment can adapt to the constantly changing hot spot position, adjust the air supply area and the air supply volume over time, and ensure that the temperature of the overall environment remains within the required range.

[0070] The total air volume gradually decreases from the top to the bottom of the air supply section 120. Under the structural characteristics that the pipe diameter of the air supply section 120 remains unchanged, the air volume and flow rate at the upper part of the air supply section 120 are large, and the air supply resistance through the air supply hole 130 is large, so the horizontal jet formed has a long distance, a high flow rate, and a large air volume; while the air volume and flow rate at the lower part of the air supply section 120 are small, and the air supply resistance through the air supply hole 130 is small, so the horizontal jet formed has a short distance, a low flow rate, and a low air volume. This makes the air supply volume and air supply resistance of the air supply section 120 at different heights unbalanced, and the air supply effect of the horizontal jet is inconsistent. This imbalance phenomenon leads to significant differences in the horizontal jet effects at different heights, affecting the performance and consistency of the air supply structure in specific application scenarios.

[0071] In order to solve the problem that the horizontal jet effects at different heights are significantly different due to the aforementioned imbalance phenomenon, in one embodiment, the aperture of the air supply hole 130 shows a decreasing trend along the direction away from the air inlet end 110. This embodiment can effectively adjust the air supply resistance of the air supply hole 130 at different heights by optimizing the design of the air supply hole 130, thereby achieving a uniform distribution of the horizontal jet effect. In the upper part of the air supply section 120, due to the large aperture of the air supply hole 130, the air supply resistance is appropriately reduced, so that the air volume in the upper area is balanced, and the horizontal jet flow rate and distance tend to be moderate. In the lower part of the air supply section 120, due to the small aperture of the air supply hole 130, the air supply resistance is appropriately increased, compensating for the insufficient air volume in the lower part, thereby increasing the horizontal jet flow rate and distance. By gradually reducing the aperture of the air supply hole 130, a relatively consistent horizontal jet effect can be achieved in different height areas, avoiding the problem of too strong upper jet and insufficient lower jet, so that the horizontal jet distance, flow rate and air volume in each height area are more uniform. Through the above-mentioned improved design, the air supply structure of the embodiment of the present application can effectively solve the problems of uneven air volume, unbalanced resistance and inconsistent horizontal jet effect in the upper and lower areas of the air supply section 120, further improve the applicability and stability of the air supply structure in complex scenes, and at the same time achieve energy-saving and efficient temperature control.

[0072] In an optional embodiment, the air supply section 120 may be provided with a plurality of air supply hole areas, the apertures of the air supply holes 130 in the same air supply hole 130 are the same, and the apertures of the air supply holes 130 in the upper air supply hole area are larger than the apertures of the air supply holes 130 in the lower air supply hole area. For example, a two-layer air supply hole area is used, and large-aperture air supply holes 130 are used in the air supply hole area in the upper part of the air supply section 120, and small-aperture air supply holes 130 are used in the air supply hole area in the lower part of the air supply section 120; another example is a three-layer air supply hole area, and large-aperture air supply holes 130 are used in the air supply hole area in the upper part of the air supply section 120, medium-aperture air supply holes 130 are used in the air supply hole area in the middle part of the air supply section 120, and small-aperture air supply holes 130 are used in the air supply hole area in the lower part of the air supply section 120. In the present embodiment, the air supply section 120 is divided into multiple air supply hole areas. The air supply holes 130 in each layer of the air supply hole area have the same aperture, but the apertures between different air supply hole areas decrease layer by layer. The air supply performance can be flexibly adjusted by changing the number of layers and the aperture size of each layer. While improving the uniformity of air supply volume in areas at different heights and adapting to multi-level air supply needs, it can also simplify the design and manufacturing difficulty of the air supply section 120 and reduce production costs.

[0073] In an optional embodiment, the aperture of the air supply hole 130 gradually decreases along the extension direction of the air supply section 120. For example, the aperture of the air supply hole 130 is uniformly and gradually distributed along the axial direction of the air supply section 120, and the aperture change of the air supply hole 130 can be designed according to the following formula: d(x)=d 0 -kx, where d(x) is the aperture of the air supply hole 130 at a distance x from the air supply hole 130 closest to the air inlet end 110; d 0 is the aperture of the air supply hole 130 closest to the air inlet end 110; k is the aperture change rate. By adjusting the size of k, the speed of aperture reduction can be flexibly controlled to meet the air supply needs of different scenarios. In this embodiment, the aperture change of the air supply hole 130 can be designed in a decreasing regularity, which can ensure that the air volume and resistance of the horizontal air supply jet are gradually adjusted along the extension direction of the air supply section 120, providing more delicate air supply adjustment, avoiding the problem of discontinuous distribution caused by stratification, and further optimizing the air supply uniformity at different heights.

[0074] In order to solve the problem that the horizontal jet effects at different heights are significantly different due to the aforementioned imbalance phenomenon, in another embodiment, the distribution density of the air supply holes 130 shows an increasing trend along the direction away from the air inlet end 110. This embodiment can effectively adjust the air supply resistance of the air supply holes 130 at different heights by optimizing the distribution density of the air supply holes 130, thereby achieving a uniform distribution of the horizontal jet effect. In the upper part of the air supply section 120, due to the low density of the air supply holes 130, the air supply volume and the air supply resistance are appropriately reduced, so that the air volume in the upper area is balanced, and the horizontal jet flow rate and distance tend to be moderate. In the lower part of the air supply section 120, due to the high density of the air supply holes 130, the air supply volume and the air supply resistance are appropriately increased, compensating for the insufficient air volume in the lower part, thereby increasing the horizontal jet flow rate and distance. By gradually increasing the distribution density of the air supply holes 130, a relatively consistent horizontal jet effect can be achieved in different height areas, avoiding the problem of too strong upper jets and insufficient lower jets, making the horizontal jet distance, flow rate and air volume in each height area more uniform. Through the above-mentioned improved design, the air supply structure of the embodiment of the present application can effectively solve the problems of uneven air volume, unbalanced resistance and inconsistent horizontal jet effects in the upper and lower areas of the air supply section 120, further improving the applicability and stability of the air supply structure in complex scenes, while achieving energy-saving and efficient temperature control.

[0075] In an optional embodiment, the air supply section 120 may be provided with a plurality of air supply hole areas, the distribution density of the air supply holes 130 in the same air supply hole area 130 is the same, and the distribution density of the air supply holes 130 in the upper air supply hole area is less than the distribution density of the air supply holes 130 in the lower air supply hole area. For example, a two-layer air supply hole area is used, the number of air supply holes 130 per unit area in the air supply hole area in the upper part of the air supply section 120 is relatively small, and the number of air supply holes 130 per unit area in the air supply hole area in the lower part of the air supply section 120 is relatively large; for another example, a three-layer air supply hole area is used, the number of air supply holes 130 per unit area in the air supply hole area in the upper part of the air supply section 120 is relatively small, the number of air supply holes 130 per unit area in the air supply hole area in the middle part of the air supply section 120 is relatively large, and the number of air supply holes 130 per unit area in the air supply hole area in the lower part of the air supply section 120 is the largest. In the present embodiment, the air supply section 120 is divided into a plurality of air supply hole areas, and the air supply holes 130 in each layer of the air supply hole area have the same distribution density, but the distribution density of the air supply holes 130 between different air supply hole areas decreases layer by layer. The air supply performance can be flexibly adjusted by changing the number of layers and the size of the distribution density in each layer. While improving the uniformity of the air supply volume in areas at different heights and adapting to multi-level air supply needs, the design and manufacturing difficulty of the air supply section 120 can be simplified, thereby reducing production costs.

[0076] In an optional embodiment, the distribution density of the air supply holes 130 gradually increases along the extension direction of the air supply section 120. For example, the distribution density of the air supply holes 130 increases uniformly along the axial direction of the air supply section 120. In this embodiment, the distribution density of the air supply holes 130 is designed to increase in a regular manner, which can ensure that the air volume and resistance of the horizontal air supply jet are gradually adjusted along the extension direction of the air supply section 120, providing more delicate air supply adjustment, avoiding the discontinuity problem caused by stratification, and further optimizing the air supply uniformity at different heights.

[0077] In some embodiments, the second air valve 310 assembly further includes a second driving mechanism, which is configured to drive the second air valve 310 to move within the air supply section 120 to approach or move away from the first air valve 210. The driving mode of the second driving mechanism includes but is not limited to electric driving, pneumatic driving, and hydraulic driving, which is configured to drive the second air valve 310 to reciprocate along the extension direction of the air supply section 120 within the air supply section 120, thereby adjusting the position of the second air valve 310 within the air supply section 120, thereby achieving the purpose of adjusting the length of the second air supply section 122 and the length of the third air supply section 123. The provision of the second driving mechanism can further enhance the flexibility and targeted control capability of the air supply structure. Specifically, the movement of the second air valve 310 will change the length of the second air supply section 122 and the third air supply section 123: when the second air valve 310 is close to the first air valve 210, the length of the second air supply section 122 is reduced, and the length of the third air supply section 123 is increased, thereby increasing the air supply range of the proximal area and reducing the air supply range of the middle area; when the second air valve 310 is away from the first air valve 210, the length of the second air supply section 122 is increased, and the length of the third air supply section 123 is reduced, thereby increasing the air supply range of the middle area and reducing the air supply range of the proximal area. As time goes by, the height of the hot spot area may change. Through the coordinated cooperation of the first air valve 210 and the second air valve 310, the moving position and opening degree of the two can be adjusted, so that the air supply range and air supply volume of the first air supply section 121, the second air supply section 122 and the third air supply section 123 can be adjusted, so as to achieve precise positioning of the air supply area and ensure that the air supply range and air supply volume are concentrated in the height area where the current hot spot is located. It is particularly suitable for scenes where the hot spot height is constantly changing, ensuring that the air supply structure can respond quickly and maintain a balanced ambient temperature.

[0078] In some embodiments, the first driving mechanism includes a rotating actuator 220 and a telescopic rod 230, one end of the telescopic rod 230 cooperates with the rotating actuator 220, and the other end is connected to the first air valve 210, and the rotating actuator 220 is used to drive the telescopic rod 230 to achieve telescopic motion, so as to drive the first air valve 210 to reciprocate in the air supply section 120. The rotating actuator 220 is a power output component that drives the telescopic rod 230 to move, including but not limited to a stepping motor; one end of the telescopic rod 230 cooperates with the rotating actuator 220, and the other end is fixedly connected to the first air valve 210, which is responsible for converting the driving force of the rotating actuator 220 into its own linear telescopic motion. The telescopic rod 230 can be a single-axis telescopic rod, a double-axis telescopic rod, or a sliding rod with a guide rail to ensure smooth movement. The first air valve 210 is connected to the telescopic rod 230, and moves along the axial direction of the air supply section 120 through the linear telescopic motion of the telescopic rod 230, thereby adjusting the length and range of each air supply area. The movement direction and speed of the telescopic rod 230 can be precisely adjusted according to the control parameters of the rotary actuator 220. When the telescopic rod 230 is extended, the first air valve 210 moves away from the air inlet end 110 of the air supply section 120, so that the length of the first air supply section 121 is reduced and the length of the second air supply section 122 is increased; when the telescopic rod 230 is retracted, the first air valve 210 moves closer to the air inlet end 110 of the air supply section 120, so that the length of the first air supply section 121 is increased and the length of the second air supply section 122 is reduced. The combined design of the rotary actuator 220 and the telescopic rod 230 is simple and compact. The telescopic rod 230 can extend axially in the air supply branch pipe 100, is easy to be integrated into the air supply structure, and has little obstruction to the air flow.

[0079] In some embodiments, the first driving mechanism includes a rotary actuator 220 and a roller screw, the roller screw includes a threaded shaft and a nut, and its core function is to convert the rotational motion of the rotary actuator 220 into the linear motion of the nut. The roller screw has the advantages of high-efficiency transmission and low friction loss, and can ensure the motion accuracy and stability of the first air valve 210. The length and pitch of the threaded shaft can be adjusted according to the specific design requirements of the air supply section 120. The first air valve 210 is fixedly mounted on the nut of the roller screw, and the rotary actuator 220 drives the threaded shaft of the roller screw to rotate. The roller screw drives the first air valve 210 to reciprocate along the axial direction of the air supply section 120 through the linear movement of the nut. The roller screw transmission system has high transmission efficiency and positioning accuracy, and can meet the requirements for fine control of the position of the first air valve 210. The combined design of the rotary actuator 220 and the roller screw is simple and compact, and the roller screw can extend axially in the air supply branch pipe 100, which is easy to integrate into the air supply structure and has little obstruction to the air flow.

[0080] In addition, the first driving mechanism can also be a gear rack combination, a gear synchronous belt combination, a gear chain combination, a linear motor drive, etc. Technical personnel in this field can make adaptive adjustments and rotations according to usage scenarios and needs.

[0081] It should be noted that the configuration of the second driving mechanism may refer to the structure and working principle of the first driving mechanism, and will not be described in detail.

[0082] The present application also provides an air supply system, such as Figure 1-8 As shown, the air supply system includes an air conditioning unit (not shown), an air supply main pipe 400 and an air supply structure provided by the aforementioned embodiments of the present application, that is, the air supply structure mainly includes an air supply branch pipe 100, a first air valve 210 assembly and a second air valve 310 assembly, one end of the air supply branch pipe 100 is an air inlet end 110, a part of the air supply branch pipe 100 is formed as an air supply section 120, and a plurality of air supply holes 130 are opened on the pipe wall of the air supply section 120; the first air valve 210 assembly includes a first driving mechanism and a first air valve 210 arranged in the air supply section 120, the first driving mechanism is configured to drive the first air valve 210 to move in the air supply section 120 to approach or move away from the air inlet end 110; the second air valve 310 assembly includes a second air valve 310 arranged in the air supply section 120, and the second air valve 310 is located between the first air valve 210 and the air inlet end 110. The air inlet end 110 of the air supply branch pipe 100 is communicated with the air supply main pipe 400 , and the air conditioning unit is configured to supply air into the air supply branch pipe 100 through the air supply main pipe 400 .

[0083] As a wind source device, the air conditioning unit is responsible for delivering air to the air supply branch pipe 100 through the air supply main pipe 400. The air conditioning unit provides the required air flow and quality for the air supply system by adjusting parameters such as temperature, humidity and wind speed. The air supply main pipe 400 connects the air conditioning unit and the air supply branch pipe 100. The air supply main pipe 400 is responsible for delivering the air processed by the air conditioning unit to the air supply branch pipe 100. According to the needs, the pipeline design of the air supply main pipe 400 can adapt to different air flow and pressure requirements.

[0084] The air conditioning unit supplies air to the air supply branch pipe 100 through the air supply main pipe 400, and the air supply branch pipe 100 introduces air into the air supply section 120. In the air supply section 120, the air is led out through the air supply holes 130 arranged at different positions and supplied to a specific area. The air flow, wind speed and air volume distribution in the air supply section 120 are adjusted according to demand. Through the cooperation of the first air valve 210 and the second air valve 310, the air supply system can adjust the height, wind speed and air volume of the air supply in real time according to the changes in the hot spot area. For example, when the position of the hot spot area changes, the cooperation of the first air valve 210 and the second air valve 310 can respond quickly to ensure that the hot spot area is fully cooled and cooled.

[0085] The present application also provides a curved room, such as Figure 8 As shown, the koji room includes a room body 500, a koji rack 600 arranged in the room body 500, and an air supply system provided in the above-mentioned embodiment of the present application, wherein the air supply section 120 of the air supply branch pipe 100 is located between the koji racks 600. The koji rack 600 is a supporting structure for stacking koji billets, and generally adopts a multi-layer structure to meet the requirements of multi-layer stacking of koji billets, ensuring that the koji billets have a suitable spatial layout during the fermentation process. The air supply section 120 of the air supply branch pipe 100 is located between the koji racks 600. The air supply system effectively and specifically supplies air and dissipates heat to local hot spots at different heights in the koji room by precisely controlling the air supply area and air volume, ensuring uniform fermentation of the koji billets. In this embodiment, the design of the air supply system takes into account the characteristics of the koji billets stacking in the koji racks 600, especially the koji billets at different levels will be affected by temperature and humidity changes during the fermentation process, and local hot spots may occur. By setting a plurality of air supply holes 130 on the air supply branch pipe 100, and combining the regulating function of the first air valve 210 assembly and the second air valve 310 assembly, the air supply area and air supply volume are dynamically adjusted, so as to specifically control the temperature abnormality of the local area in the koji room, and avoid affecting the fermentation effect of the koji due to uneven temperature. By integrating the air supply system into the structural design of the koji room, the fermentation efficiency of the koji can be effectively improved, the quality stability of the koji can be guaranteed, and a more accurate temperature management solution can be provided for the production of koji.

[0086] An embodiment of the present application also provides an air supply control method, which is implemented by the air supply structure provided by the aforementioned embodiment of the present application, the air supply structure mainly includes an air supply branch pipe 100, a first air valve 210 assembly and a second air valve 310 assembly, one end of the air supply branch pipe 100 is an air inlet end 110, a part of the air supply branch pipe 100 is formed as an air supply section 120, and a plurality of air supply holes 130 are opened on the pipe wall of the air supply section 120; the first air valve 210 assembly includes a first driving mechanism and a first air valve 210 arranged in the air supply section 120, the first driving mechanism is configured to drive the first air valve 210 to move in the air supply section 120 to approach or move away from the air inlet end 110; the second air valve 310 assembly includes a second air valve 310 arranged in the air supply section 120, and the second air valve 310 is located between the first air valve 210 and the air inlet end 110. A first air supply section 121 is formed between the first air valve 210 and the end of the air supply section 120 away from the air inlet end 110, a second air supply section 122 is formed between the first air valve 210 and the second air valve 310, and a third air supply section 123 is formed between the second air valve 310 and the end of the air supply section 120 away from the air inlet end 110.

[0087] The air supply control method includes: controlling the opening of the first air valve 210 and the second air valve 310 , and controlling the first air valve 210 to move in the air supply section 120 to adjust the length of the first air supply section 121 and the length of the second air supply section 122 .

[0088] This method is applicable to the air supply structure described in the aforementioned embodiment, and realizes precise control of local hot spots in the space by dynamically adjusting the air supply area and air volume. In this control method, real-time temperature data can be obtained through sensors distributed in the target environment, the location and degree of local hot spots or temperature abnormality areas can be identified, the range of the required air supply area and the corresponding air supply volume can be determined, and a control strategy can be generated. The specific control measures are to control the opening of the first air valve 210 and the second air valve 310 and control the movement of the first air valve 210 in the air supply section 120 to achieve precise air supply control. When it is necessary to centrally supply air to the third air supply section 123, as shown in FIG. Figure 2 As shown, the opening of the second air valve 310 is adjusted to a smaller value or even 0, so that the airflow only acts on the third air supply section 123 in the top area of ​​the air supply section 120. When air needs to be supplied to the second air supply section 122 and the third air supply section 123, as shown in FIG. Figure 3As shown, the second air valve 310 is adjusted to open appropriately, and the opening of the first air valve 210 is adjusted to a smaller value or even 0 according to the demand, so that the air outlet range is concentrated in the second air supply section 122 and the third air supply section 123, and the air supply volume distribution of the second air supply section 122 and the third air supply section 123 can be controlled by the opening of the second air valve 310. When the opening of the second air valve 310 is 100%, the second air supply section 122 can obtain the maximum air supply volume. When it is necessary to reduce the air supply ratio of the second air supply section 122, the opening of the second air valve 310 can be reduced accordingly. When it is necessary to supply air to the first air supply section 121, as shown in FIG. Figure 4 As shown, the first air valve 210 and the second air valve 310 are both adjusted to open so that the air outlet range is distributed in the first air supply section 121, the second air supply section 122 and the third air supply section 123, and the air supply volume distribution of the first air supply section 121, the second air supply section 122 and the third air supply section 123 can be controlled by the opening of the first air valve 210 and the second air valve 310. When the opening of the first air valve 210 and the second air valve 310 is 100%, the first air supply section 121 can obtain the maximum air supply volume. When it is necessary to reduce the air supply ratio of the first air supply section 121, the opening of the first air valve 210 and the second air valve 310 can be reduced accordingly.

[0089] The first air valve 210 is moved axially along the air supply section 120 by the first driving mechanism, and the length of the first air supply section 121 and the second air supply section 122 can be adjusted. When the local hot spot is located below the second air valve 310 and is at a higher position, the length of the second air supply section 122 is adjusted by moving the first air valve 210 so that the range of the second air supply section 122 corresponds to the position of the local hot spot, and the opening of the first air valve 210 is adjusted to 0, so that targeted air can be supplied to the local hot spot, that is, Figure 3 When the local hot spot is located below the second air valve 310 and is at a lower position, the length of the first air supply section 123 is adjusted by moving the first air valve 210 so that the range of the first air supply section 121 corresponds to the position of the local hot spot, and the opening of the first air valve 210 is adjusted to be not 0, so that targeted air can be supplied to the local hot spot, that is, Figure 4 shown.

[0090] This method can update the opening of the two air valves and the position of the first air valve 210 in real time as the position of the hot spot area changes, ensuring that the coverage of the air supply area matches the hot spot area. It effectively solves the problem of the inability to accurately control local hot spots in traditional air supply methods, and has the characteristics of flexible regulation, fast response and strong adaptability, providing a reliable solution for achieving precise environmental control.

[0091] The sensor can also provide real-time feedback of environmental parameters after air supply control to evaluate the control effect. If it is found that the temperature still does not meet the target range, the opening and position of the two air valves can be further optimized to form a closed-loop control.

[0092] On the basis of the above embodiment, the second air valve 310 assembly further includes a second driving mechanism, and the second driving mechanism is configured to drive the second air valve 310 to move in the air supply section 120 to approach or move away from the first air valve 210. The air supply control method further includes: controlling the first air valve 210 and the second air valve 310 to move in the air supply section 120 to adjust the length of the first air supply section 121, the length of the second air supply section 122, and the length of the third air supply section 123. The provision of the second driving mechanism can further enhance the flexibility and targeted control capability of the air supply structure. Specifically, the movement of the second air valve 310 will change the length of the second air supply section 122 and the third air supply section 123: when the second air valve 310 is close to the first air valve 210, the length of the second air supply section 122 is reduced, and the length of the third air supply section 123 is increased, thereby increasing the air supply range of the proximal area and reducing the air supply range of the middle area; when the second air valve 310 is away from the first air valve 210, the length of the second air supply section 122 is increased, and the length of the third air supply section 123 is reduced, thereby increasing the air supply range of the middle area and reducing the air supply range of the proximal area. As time goes by, the height of the hot spot area may change. Through the coordinated cooperation of the first air valve 210 and the second air valve 310, the moving position and opening degree of the two can be adjusted, so that the air supply range and air supply volume of the first air supply section 121, the second air supply section 122 and the third air supply section 123 can be adjusted, so as to achieve precise positioning of the air supply area and ensure that the air supply range and air supply volume are concentrated in the height area where the current hot spot is located. It is particularly suitable for scenes where the hot spot height is constantly changing, ensuring that the air supply structure can respond quickly and maintain a balanced ambient temperature.

[0093] The air supply control method provided in the embodiment of the present application has an overall air supply mode, a layered air supply mode and a single-layer air supply mode.

[0094] In some embodiments, the air supply control method of the overall air supply mode includes: Figure 5 As shown, the first air valve 210 and the second air valve 310 are controlled to be fully opened. By fully opening the two air supply air valves, the two air valves do not adjust the air volume, and the entire air supply section 120 is used for air supply. In the direction away from the air inlet end 110, the aperture of the air supply hole 130 shows a decreasing trend, and the distribution density of the air supply holes 130 shows an increasing trend. According to the aperture and density design of the air supply holes 130 around the air supply section 120, the air supply volume and air supply resistance at different heights of the air supply section 120 are regulated to meet the overall air supply and airflow organization requirements in the environment.

[0095] On the basis of the above implementation, the overall air supply mode also includes: Figure 6As shown, the first air valve 210 is controlled to be located at the end of the air supply section 120 away from the air inlet end 110, and the length of the first air supply section 121 is 0. This control method allows the first air valve 210 to be completely located at the far end of the air supply section 120. Although the first air valve 210 is fully opened to allow the airflow to pass through to the maximum extent, the airflow will inevitably be physically blocked to a certain extent by the first air valve 210 during the process of passing through the first air valve 210. By completely moving the first air valve 210 to the end of the air supply section 120 away from the air inlet end 110, the airflow can flow unimpeded in the air supply section 120.

[0096] Based on the same principle, when the second air valve 310 is movable, the overall air supply mode also includes: Figure 6 As shown, the second air valve 310 is controlled to be located at one end of the air supply section 120 close to the air inlet end 110, and the length of the third air supply section 123 is 0. At this time, the first air valve 210 and the second air valve 310 are respectively located at both ends of the air supply section 120, and the second air supply section 122 is the entire air supply range.

[0097] In some embodiments, the air supply control method in the stratified air supply mode includes: Figure 4 As shown, the openings of the first air valve 210 and the second air valve 310 are controlled to be between 0-100%; the position of the first air valve 210 in the air supply section 120 is adjusted so that the length of the first air supply section 121 and the length of the second air supply section 122 are both greater than 0. The first air valve 210 is moved axially along the air supply section 120 by the first driving mechanism, and the lengths of the first air supply section 121 and the second air supply section 122 can be adjusted. When the local hot spot is located below the second air valve 310 and is at a higher position, the length of the second air supply section 122 is adjusted by moving the first air valve 210 so that the range of the second air supply section 122 corresponds to the position of the local hot spot, and the opening of the first air valve 210 is adjusted to 0, so that targeted air supply can be performed on the local hot spot. When the local hotspot is located below the second air valve 310 and in a lower position, the length of the first air supply section 121 is adjusted by moving the first air valve 210 so that the range of the first air supply section 121 corresponds to the position of the local hotspot, and the opening of the first air valve 210 is adjusted not to 0, so that targeted air supply can be provided to the local hotspot.

[0098] On the basis of the above-mentioned embodiment, the second air valve 310 assembly further includes a second driving mechanism, and the second driving mechanism is configured to drive the second air valve 310 to move in the air supply section 120 to approach or move away from the first air valve 210. The air supply control method in the stratified air supply mode further includes: adjusting the positions of the first air valve 210 and the second air valve 310 in the air supply section 120 so that at least two of the length of the first air supply section 121, the length of the second air supply section 122, and the length of the third air supply section 123 are greater than 0. Through the coordination of the first air valve 210 and the second air valve 310, the moving position and opening of the two can be adjusted, so that the air supply range and air supply volume of the first air supply section 121, the second air supply section 122, and the third air supply section 123 can be adjusted, so as to achieve accurate positioning of the air supply area and ensure that the air supply range and air supply volume are concentrated in the height area where the current hot spot is located.

[0099] In some embodiments, the air supply control method of the single-layer air supply mode includes: Figure 7 As shown, the opening of the first air valve 210 is controlled to be 0, and the opening of the second air valve 310 is controlled to be greater than 0; the positions of the first air valve 210 and the second air valve 310 in the air supply section 120 are adjusted so that the length of the second air supply section 122 is greater than 0, and the length of the third air supply section 123 is 0. Since the length of the third air supply section 123 is 0, the third air supply section 123 cannot supply air, and since the opening of the first air valve 210 is 0, the air flow cannot enter the first air supply section 121, and the first air supply section 121 cannot supply air, so that only the second air supply section 122 is used for single-layer air supply. By adjusting the position of the first air valve 210, the second air supply section 122 of different lengths can be obtained, so as to achieve the purpose of adjusting the single-layer air supply range.

[0100] Some embodiments in this specification are described in a progressive or parallel manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referenced to each other.

[0101] The above is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. An air supply structure, characterized in that: include: An air supply branch pipe, one end of which is an air inlet end, and the air supply branch pipe is formed with an air supply section having a plurality of air supply holes formed on the pipe wall; A first air valve assembly, comprising a first driving mechanism and a first air valve disposed in the air supply section, wherein the first driving mechanism is configured to drive the first air valve to move in the air supply section to approach or move away from the air inlet end; The second air valve assembly includes a second air valve arranged in the air supply section, and the second air valve is located between the first air valve and the air inlet end.

2. The air supply structure according to claim 1, characterized in that: Along the direction away from the air inlet end, the aperture of the air supply hole tends to decrease.

3. The air supply structure according to claim 1, characterized in that: The distribution density of the air supply holes tends to increase along the direction away from the air inlet end.

4. The air supply structure according to claim 1, characterized in that: The second air valve assembly further includes a second driving mechanism, and the second driving mechanism is configured to drive the second air valve to move within the air supply section to approach or move away from the first air valve.

5. An air supply system, characterized in that: It comprises an air conditioning unit, an air supply main pipe and an air supply structure as described in any one of claims 1 to 4, the air inlet end of the air supply branch pipe is connected to the air supply main pipe, and the air conditioning unit is configured to supply air into the air supply branch pipe through the air supply main pipe.

6. A curved room, comprising a room body and a curved frame arranged in the room body, characterized in that it also includes the air supply system as claimed in claim 5, and the air supply section of the air supply branch pipe is located between the curved frames.

7. A method for controlling air supply, implemented by the air supply structure according to any one of claims 1 to 4, characterized in that: A first air supply section is formed between the first air valve and an end of the air supply section away from the air inlet end, a second air supply section is formed between the first air valve and the second air valve, and a third air supply section is formed between the second air valve and an end of the air supply section close to the air inlet end; the air supply control method comprises: The openings of the first air valve and the second air valve are controlled, and the first air valve is controlled to move within the air supply section to adjust the length of the first air supply section and the length of the second air supply section.

8. The air supply control method according to claim 7, characterized in that: The air supply control method further comprises: The first air valve and the second air valve are controlled to move in the air supply section to adjust the length of the first air supply section, the length of the second air supply section, and the length of the third air supply section.

9. The air supply control method according to claim 7 or 8, characterized in that: The air supply control method has an overall air supply mode, and the overall air supply mode includes: The first air valve and the second air valve are controlled to be fully opened.

10. The air supply control method according to claim 9, characterized in that: The overall air supply mode also includes: controlling the first air valve to be located at an end of the air supply section away from the air inlet end, and the length of the first air supply section is 0.

11. The air supply control method according to claim 7 or 8, characterized in that: The air supply control method has a stratified air supply mode, and the stratified air supply mode includes: Controlling the opening of the first air valve and the second air valve to be between 0-100%; The position of the first air valve in the air supply section is adjusted so that the length of the first air supply section and the length of the second air supply section are both greater than 0.

12. The air supply control method according to claim 11, characterized in that: The stratified air supply mode also includes: The positions of the first air valve and the second air valve in the air supply section are adjusted so that at least two of the length of the first air supply section, the length of the second air supply section, and the length of the third air supply section are greater than 0.

13. The air supply control method according to claim 7 or 8, characterized in that: The air supply control method has a single-layer air supply mode, and the single-layer air supply mode includes: Controlling the opening of the first air valve to be 0, and controlling the opening of the second air valve to be greater than 0; The positions of the first air valve and the second air valve in the air supply section are adjusted so that the length of the second air supply section is greater than 0 and the length of the third air supply section is 0.

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