Air conditioning unit and air conditioning control method

Abstract

The present invention relates to the technical field of air conditioning for subways, and specifically to an air conditioning unit and an air conditioning control method. For ease of understanding, the following explanation is given by applying the air conditioning unit to a subway. When it is detected that the current time period is off-peak, the second air conditioning channel is used to perform cooling operations in the subway. When it is detected that the current time period is peak, the second air conditioning channel is mainly used to perform cooling operations in the subway. At this time, since the number of filter components in the second air conditioning channel is less than the number of filter components in the first air conditioning channel, the running resistance of the air in the second air conditioning channel is less than the running resistance of the air in the first air conditioning channel. In summary, the design of this embodiment can switch the operating mode according to different time periods, thereby effectively reducing the operating resistance and improving the operating efficiency of the unit.

Description

Technical Field

[0001] The present invention relates to the technical field of subway air conditioners, and in particular to an air conditioner unit and an air conditioner control method. Background Art

[0002] With the development of domestic science and technology, urban rail transit is being used more and more widely. In order to ensure air quality and cooling effect in subways, air-conditioning units often run all year round, consuming a lot of energy. Using reasonable means to design air-conditioning units for energy saving can effectively reduce energy waste. At present, existing subway air-conditioning units are generally composed of an air intake section, a filter section, a surface cooling section, a fan section, a silencer section, etc., which leads to a large operating resistance and seriously affects the efficiency of the unit. Summary of the Invention

[0003] The purpose of the present application is to provide an air-conditioning unit and an air-conditioning control method to solve the technical problem in the prior art that the air-conditioning unit has low operating efficiency due to large operating resistance.

[0004] (1) Technical solution

[0005] To achieve the above-mentioned object, the present invention provides an air conditioning unit in a first aspect, comprising:

[0006] a first air conditioning channel having a first air inlet section and a first air outlet section at both ends, wherein the first air inlet section and the first air outlet section are sequentially connected to a first filter section, a first surface cooling section, a fan section, and a muffler section, and the first air inlet section and the first filter section are connected via a first control valve;

[0007] And a second air-conditioning channel is arranged in parallel with the first air-conditioning channel, and has a second air inlet section and a second air outlet section at both ends, the second air inlet section and the second air outlet section are connected in sequence with a second filter section and a second surface cooling section, the second air inlet section and the first air inlet section are connected through a second control valve, the second air outlet section and the fan section are connected through a third control valve, and the number of filter components in the second filter section is less than the number of filter components in the first filter section.

[0008] As one of the optional solutions of the present technical solution, the number of tube rows in the second surface cooling section is smaller than the number of tube rows in the first surface cooling section.

[0009] As one of the optional solutions of this technical solution, the first filter section includes a primary filter component and a medium filter component, and the primary filter component and the medium filter component are arranged in sequence along the air outlet direction; the second filter section includes a primary filter component.

[0010] As one of the optional solutions of the present technical solution, a first intermediate section is further connected between the first surface cooling section and the fan section, and the second air outlet section is connected to the first intermediate section via the third control valve.

[0011] As one of the optional solutions of the present technical solution, a second intermediate section is connected between the fan section and the silencer section, a fourth control valve is installed on one of the walls of the second intermediate section, and a fifth control valve is installed on the wall of the second intermediate section facing the silencer section.

[0012] As one of the optional solutions of the present technical solution, a sixth control valve is installed at the air inlet of the first air inlet section, and a seventh control valve is installed at the air outlet of the second air inlet section.

[0013] As one of the optional solutions of this technical solution, the fan section includes: a plurality of fan components arranged in parallel.

[0014] As one of the optional solutions of this technical solution, a third filter section is further connected between the fan section and the silencer section.

[0015] To achieve the above object, a second aspect of the present invention provides an air conditioning control method, using any one of the aforementioned air conditioning units, the method comprising:

[0016] If it is detected that the current time is within the preset first time period, the first control valve is opened to allow the air sucked in through the first air inlet section to be dispersed into the area to be cooled through the first air conditioning channel;

[0017] If it is detected that the current moment is within the preset second time period, the first control valve is closed, and the second control valve and the third control valve are opened, so that the air inhaled through the first air inlet section is dissipated to the area to be cooled through the second air-conditioning channel and the first air-conditioning channel in turn.

[0018] As one of the optional solutions of this technical solution, the method specifically includes:

[0019] If it is detected that the current time is within the preset first time period, the first control valve is opened so that the air sucked in through the first air inlet section passes through the first filter section, the first surface cooling section, the fan section and the muffler section in sequence and then is dispersed into the area to be refrigerated;

[0020] If it is detected that the current moment is within the preset second time period, the first control valve is closed, and the second control valve and the third control valve are opened, so that the air inhaled through the first air inlet section passes through the second filter section, the second surface cooling section, the fan section and the silencer section in sequence and then dispersed into the area to be refrigerated.

[0021] As one of the optional solutions of this technical solution, the method specifically includes:

[0022] If it is detected that the current time is within the preset first time period, the first control valve and the fifth control valve are opened, so that the air sucked in through the first air inlet section passes through the first filter section, the first surface cooling section, the fan section and the muffler section in sequence and then is dispersed into the area to be refrigerated;

[0023] If it is detected that the current moment is within the preset second time period, the first control valve and the fifth control valve are closed, and the second control valve, the third control valve and the fourth control valve are opened, so that the air inhaled through the first air inlet section passes through the second filter section, the second surface cooling section, and the fan section in sequence and then dispersed to the area to be refrigerated.

[0024] As one of the optional solutions of the present technical solution, the method further includes: adjusting the number of opened fan components according to the currently required air output.

[0025] As one of the optional solutions of the present technical solution, the method further includes: if it is detected that the current moment is within a preset third time period, closing all control valves.

[0026] As one of the optional solutions of this technical solution, the first time period is set as the subway peak operation period, the second time period is set as the subway off-peak period; and the third time period is set as the subway suspension period.

[0027] (2) Beneficial effects

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The present invention provides an air-conditioning unit and an air-conditioning control method, the air-conditioning unit specifically comprising: a first air-conditioning channel, having a first air inlet section and a first air outlet section at both ends, a first filter section, a first surface cooling section, a fan section and a silencer section being connected in sequence between the first air inlet section and the first air outlet section, and the first air inlet section and the first filter section being connected via a first control valve; and a second air-conditioning channel, being arranged in parallel with the first air-conditioning channel, and having a second air inlet section and a second air outlet section at both ends, a second filter section and a second surface cooling section being connected in sequence between the second air inlet section and the second air outlet section, the second air inlet section and the first air inlet section being connected via a second control valve, the second air outlet section and the fan section being connected via a third control valve, and the number of filter components in the second filter section being less than the number of filter components in the first filter section.

[0030] For ease of understanding, the following explanation is given by applying the air-conditioning unit to the subway. When it is detected that the current time period is off-peak, the second air-conditioning channel is used to cool the subway. When it is detected that the current time period is peak, the second air-conditioning channel is mainly used to cool the subway. At this time, since the number of filter components in the second air-conditioning channel is less than the number of filter components in the first air-conditioning channel, the running resistance of the air in the second air-conditioning channel is less than the running resistance of the air in the first air-conditioning channel. In summary, the design of this embodiment can switch the operating mode according to different time periods, thereby effectively reducing the operating resistance and improving the operating efficiency of the unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, a person skilled in the art can derive other drawings based on these drawings without inventive work, among which:

[0033] Figure 1 This is a structural diagram of an air-conditioning unit according to one embodiment of the present invention;

[0034] Figure 2 is a structural schematic diagram showing an air-conditioning unit according to another embodiment of the present invention;

[0035] Figure 3 It is a flow chart of the air conditioning control method in the present invention.

[0036] In the figure: 1. First air inlet section; 2. First air outlet section; 3. First filter section; 4. First surface cooling section; 5. Fan section; 6. Silencer section; 7. First control valve; 8. Second air inlet section; 9. Second air outlet section; 10. Second filter section; 11. Second surface cooling section; 12. Second control valve; 13. Third control valve; 14. First intermediate section; 15. Second intermediate section; 16. Fourth control valve; 17. Fifth control valve; 18. Sixth control valve; 19. Seventh control valve; 20. Third filter section; 21. Third intermediate section; 22. First air-conditioning channel; 23. Second air-conditioning channel. DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0039] In order to solve the technical problem of low operating efficiency of air-conditioning units due to large operating resistance in the prior art, Figure 1 and Figure 2 As shown, the first aspect of the present application provides an air conditioning unit. It should be noted that the direction of the arrow in the figure is the direction of air flow. The air conditioning unit specifically includes:

[0040] The first air-conditioning channel 22 has a first air inlet section 1 and a first air outlet section 2 at both ends; specifically, a sixth control valve 18 is installed at the air inlet of the first air inlet section 1, and a seventh control valve 19 is installed at the air outlet of the second air inlet section 8; the first air inlet section 1 and the first air outlet section 2 are connected in sequence with the first filter section 3, the first surface cooling section 4, the fan section 5 and the silencer section 6, and the first air inlet section 1 is connected to the first filter section 3 through the first control valve 7; specifically, in order to achieve better control, the first air inlet section 1 and the first filter section 3 are also connected with a third intermediate section 21, and the first air inlet section 1 and the third intermediate section 21 are connected through the first control valve 7.

[0041] And a second air-conditioning channel 23 is arranged in parallel with the first air-conditioning channel 22, and has a second air inlet section 8 and a second air outlet section 9 at both ends. The second air inlet section 8 and the second air outlet section 9 are connected in sequence with a second filter section 10 and a second surface cooling section 11. The second air inlet section 8 and the first air inlet section 1 are connected through a second control valve 12, and the second air outlet section 9 and the fan section 5 are connected through a third control valve 13; specifically, a first intermediate section 14 is also connected between the first surface cooling section 4 and the fan section 5, and the second air outlet section 9 and the first intermediate section 14 are connected through a third control valve 13. More specifically, the air output through the second air outlet section 9 will first enter the first intermediate section 14 and then be transported to the fan section 5; wherein, the number of filter components in the second filter section 10 is less than the number of filter components in the first filter section 3. In a specific embodiment, the first filter section 3 includes a primary filter component and a medium filter component, and the primary filter component and the medium filter component are arranged in sequence along the air outlet direction; the second filter section 10 includes a primary filter component.

[0042] For ease of understanding, the following explanation will be given by applying the air-conditioning unit to the subway. When it is detected that the current time period is off-peak, the second air-conditioning channel 23 is used to cool the subway. When it is detected that the current time period is peak, the second air-conditioning channel 23 is mainly used to cool the subway. At this time, since the number of filter components in the second air-conditioning channel 23 is less than the number of filter components in the first air-conditioning channel 22, the running resistance of the air in the second air-conditioning channel 23 is less than the running resistance of the air in the first air-conditioning channel 22. In summary, the design of this embodiment can switch the operating mode according to different time periods, thereby effectively reducing the operating resistance and improving the operating efficiency of the unit.

[0043] More specifically, Figure 1 As shown, if it is detected that the current moment is in the preset off-peak time period, the first control valve 7 is opened, so that the air sucked in through the first air inlet section 1 passes through the first filter section 3, the first surface cooling section 4, the fan section 5 and the muffler section 6 in sequence and is then dispersed into the subway station; and if it is detected that the current moment is in the peak time period, the first control valve 7 is closed, and the second control valve 12 and the third control valve 13 are opened, so that the air sucked in through the first air inlet section 1 passes through the second filter section 10, the second surface cooling section 11, the fan section 5 and the muffler section 6 in sequence and is then dispersed into the subway station. In summary, when the subway is running, the passenger flow is relatively large during the peak time period. , and the concentration of particulate matter in the air is relatively high. At this time, the first air-conditioning channel 22 with more filter components is used for treatment, which can ensure the environmental quality in the subway station. Similarly, during the off-peak period, there is less traffic, and the concentration of particulate matter in the air in the subway station is relatively low. At this time, the second air-conditioning channel 23 with fewer filter components can be used for treatment, thereby avoiding the phenomenon of large air resistance and ultimately large energy consumption when the first air-conditioning channel 22 is still used for treatment. In summary, the design of this embodiment can adjust the functional section of the unit in the subway station according to actual conditions, reduce negative pressure, and improve the cooling efficiency of the unit.

[0044] In a preferred embodiment, in order to achieve the adjustment of the cooling capacity, the number of tube rows in the second surface cooling section 11 is smaller than the number of tube rows in the first surface cooling section 4, thereby achieving a large cooling capacity output through the first air-conditioning channel 22, and when switching to the second air-conditioning channel 23, a small cooling capacity output can be achieved, thereby avoiding excess energy consumption and reducing waste.

[0045] In a more preferred embodiment, the fan section 5 includes: a plurality of fan components arranged in parallel, specifically, the fan components are fans; the number of fan components to be turned on can be adjusted according to the currently required air output. Specifically, when the subway is running during the peak period, the required air output is large, then all the fan components can be turned on accordingly. Similarly, when the subway is running during the off-peak period, the required air output is small, then some of the fan components can be turned on accordingly. For example, there are 6 fan components in the fan section 5, and the maximum air output of each fan component is 10,000. When the required air output during the peak period is 60,000, all 6 air outlet components can be turned on. When it is detected that the required air output during the off-peak period is 30,000, only 6 of the air outlet components need to be turned on, and not all of them need to be turned on, thereby saving energy.

[0046] According to one embodiment of the present invention, in order to further improve the filtering effect, a third filter section 20 is connected between the fan section 5 and the silencer section 6; preferably, the third filter section 20 is configured as a high-efficiency filter component, so that the air is first filtered again by the high-efficiency filter component and then enters the silencer section 6 for silencer treatment.

[0047] In the above embodiment, the first control valve 7 to the seventh control valve 19 are preferably configured as stop valves, and their openings can be adjusted as needed.

[0048] On the basis of the above embodiment, in order to further reduce the air running resistance and improve the unit operation efficiency, as Figure 2 As shown, a second intermediate section 15 is further connected between the fan section 5 and the muffler section 6, and a fourth control valve 16 is installed on one wall surface of the second intermediate section 15. Preferably, the fourth control valve 16 is installed on the upper wall surface; a fifth control valve 17 is installed on the wall surface of the second intermediate section 15 facing the muffler section 6; specifically, if it is detected that the current moment is in a preset off-peak time period, the first control valve 7 and the fifth control valve 17 are opened, so that the air inhaled through the first air inlet section 1 passes through the first filter section 3, the first surface cooling section 4, the fan section 5 and the muffler section 6 in sequence and then diverges into the subway station; and if it is detected that the current moment is in a high During the peak time period, the first control valve 7 and the fifth control valve 17 are closed, and the second control valve 12, the third control valve 13 and the fourth control valve 16 are opened, so that the air inhaled through the first air inlet section 1 passes through the second filter section 10, the second surface cooling section 11, and the fan section 5 in sequence, and is dispersed into the subway station without passing through the silencer section 6. In summary, when the second air-conditioning channel 23 is used for cooling operation, the air does not need to pass through the silencer section 6 and only needs to pass through a smaller number of filter components to be dispersed into the subway station, thereby effectively reducing the operating resistance caused by the filter components and the silencer section 6, and further improving the operating efficiency of the unit.

[0049] In order to solve the above technical problems, Figure 3 As shown, the second aspect of the present application provides an air conditioning control method, which uses the air conditioning unit as described above, and the method includes:

[0050] S101: If it is detected that the current time is within the preset first time period, the first control valve 7 is opened to allow the air sucked in through the first air inlet section 1 to be dispersed into the area to be cooled through the first air conditioning channel 22;

[0051] S102: If it is detected that the current moment is within the preset second time period, the first control valve 7 is closed, and the second control valve 12 and the third control valve 13 are opened, so that the air inhaled through the first air inlet section 1 is dispersed to the area to be cooled through the second air-conditioning channel 23 and the first air-conditioning channel 22 in turn.

[0052] According to an embodiment of the present invention, the method further includes: if it is detected that the current moment is within a preset third time period, closing all control valves.

[0053] Specifically, when the air-conditioning unit in the present application is used in a subway station, the first time period is set as the subway peak time period, the second time period is set as the subway off-peak period; the third time period is set as the subway shutdown period. For example, the subway peak time period is 7:00-9:00 and 16:00-19:00, the subway off-peak period is 6:00-6:59, 9:59-15:59, and 19:59-23:00, and the subway shutdown period is 23:59-5:59.

[0054] According to one embodiment of the present invention, the method further includes: adjusting the number of fan components to be turned on according to the currently required air output. Specifically, when the subway is running during the peak period, the required air output is large, and all the fan components are turned on accordingly. Similarly, when the subway is running during the off-peak period, the required air output is small, and some of the fan components are turned on accordingly.

[0055] In a specific embodiment, Figure 1 As shown, the method specifically includes:

[0056] If it is detected that the current time is within the preset first time period, the first control valve 7 is opened, so that the air sucked in through the first air inlet section 1 passes through the first filter section 3, the first surface cooling section 4, the fan section 5 and the muffler section 6 in sequence and then dispersed into the area to be refrigerated;

[0057] If it is detected that the current moment is within the preset second time period, the first control valve 7 is closed, and the second control valve 12 and the third control valve 13 are opened, so that the air inhaled through the first air inlet section 1 passes through the second filter section 10, the second surface cooling section 11, the fan section 5 and the silencer section 6 in sequence and then disperses into the area to be refrigerated.

[0058] Specifically, such as Figure 1 As shown, if it is detected that the current time is in the preset off-peak time period, exemplarily at 6:30, the first control valve 7 is opened, so that the air inhaled through the first air inlet section 1 passes through the first filter section 3, the first surface cooling section 4, the fan section 5 and the silencer section 6 in sequence and is then dispersed into the subway station; and if it is detected that the current time is in the peak time period, exemplarily at 8 o'clock, the first control valve 7 is closed, and the second control valve 12 and the third control valve 13 are opened, so that the air inhaled through the first air inlet section 1 passes through the second filter section 10, the second surface cooling section 11, the fan section 5 and the silencer section 6 in sequence and is then dispersed into the subway station.

[0059] In another specific embodiment, Figure 2 As shown, the method specifically includes:

[0060] If it is detected that the current time is within the preset first time period, the first control valve 7 and the fifth control valve 17 are opened, so that the air sucked in through the first air inlet section 1 passes through the first filter section 3, the first surface cooling section 4, the fan section 5 and the muffler section 6 in sequence and then disperses to the area to be refrigerated;

[0061] If it is detected that the current moment is within the preset second time period, the first control valve 7 and the fifth control valve 17 are closed, and the second control valve 12, the third control valve 13 and the fourth control valve 16 are opened, so that the air inhaled through the first air inlet section 1 passes through the second filter section 10, the second surface cooling section 11, and the fan section 5 in sequence and then dispersed into the area to be refrigerated.

[0062] Specifically, if it is detected that the current time is within the preset off-peak time period, exemplarily at 6:30, the first control valve 7 and the fifth control valve 17 are opened, so that the air inhaled through the first air inlet section 1 passes through the first filter section 3, the first surface cooling section 4, the fan section 5 and the silencer section 6 in sequence and is then dispersed into the subway station; and if it is detected that the current time is within the peak time period, exemplarily at 8 o'clock, the first control valve 7 and the fifth control valve 17 are closed, and the second control valve 12, the third control valve 13 and the fourth control valve 16 are opened, so that the air inhaled through the first air inlet section 1 passes through the second filter section 10, the second surface cooling section 11, the fan section 5 in sequence and is then dispersed into the subway station without passing through the silencer section 6. In summary, when the second air-conditioning duct 23 is used for cooling operation, the air does not need to pass through the silencer section 6 and only needs to pass through a smaller number of filter components to be dispersed into the subway station, thereby effectively reducing the operating resistance caused by the filter components and the silencer section 6, and further improving the operating efficiency of the unit.

[0063] Each embodiment in this specification is described in a progressive manner. Some embodiments focus on the differences from other embodiments, and the same or similar parts between the embodiments can be referenced to each other.

[0064] It should be noted that, in the specification and claims of this application and the above-mentioned drawings, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or specific order or precedence between these entities or operations. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein.

[0065] Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, or any other variants thereof, are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also includes other elements not expressly listed or that are inherent to such process, method, article, or apparatus. For example, a process, method, system, product, or apparatus that includes a list of steps or units is not necessarily limited to those steps or units expressly listed but may include other steps or units not expressly listed or that are inherent to such process, method, product, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a . . . ." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0066] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0067] The foregoing is merely a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications and variations to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but shall conform to the widest scope consistent with the principles and novel features of the present application.

Claims

1. An air conditioning unit, characterized in that: include: A first air conditioning channel (22) has a first air inlet section (1) and a first air outlet section (2) at both ends, wherein the first air inlet section (1) and the first air outlet section (2) are sequentially connected to a first filter section (3), a first surface cooling section (4), a fan section (5) and a muffler section (6), and the first air inlet section (1) and the first filter section (3) are connected via a first control valve (7); and a second air conditioning channel (23) arranged in parallel with the first air conditioning channel (22), and having a second air inlet section (8) and a second air outlet section (9) at both ends, wherein the second air inlet section (8) and the second air outlet section (9) are sequentially connected with a second filter section (10) and a second surface cooling section (11), the second air inlet section (8) and the first air inlet section (1) are connected via a second control valve (12), the second air outlet section (9) and the fan section (5) are connected via a third control valve (13), and the number of filter components in the second filter section (10) is less than the number of filter components in the first filter section (3); Wherein, if it is detected that the current moment is in a peak time period, the first control valve (7) is opened, so that the air sucked in through the first air inlet section (1) passes through the first filter section (3), the first surface cooling section (4), the fan section (5) and the muffler section (6) in sequence and then is dispersed into the subway station; and if it is detected that the current moment is in a flat time period, the first control valve (7) is closed, and the second control valve (12) and the third control valve (13) are opened, so that the air sucked in through the first air inlet section (1) passes through the second filter section (10), the second surface cooling section (11), the fan section (5) and the muffler section (6) in sequence and then is dispersed into the subway station; The number of tube rows in the second surface cooling section (11) is smaller than the number of tube rows in the first surface cooling section (4); A second intermediate section (15) is also connected between the fan section (5) and the muffler section (6). A fourth control valve (16) is installed on one wall surface of the second intermediate section (15). A fifth control valve (17) is installed on the wall surface of the second intermediate section (15) facing the muffler section (6). If it is detected that the current time is within the off-peak time period, the first control valve (7) and the fifth control valve (17) are closed, and the second control valve (12), the third control valve (13) and the fourth control valve (16) are opened, so that the air sucked in through the first air inlet section (1) passes through the second filter section (10), the second surface cooling section (11), and the fan section (5) in sequence, and is then dispersed into the subway station without passing through the muffler section (6).

2. The air conditioning unit according to claim 1, characterized in that: The first filter section (3) includes a primary filter assembly and a medium filter assembly, and the primary filter assembly and the medium filter assembly are arranged in sequence along the air outlet direction; the second filter section (10) includes a primary filter assembly.

3. The air conditioning unit according to claim 1, characterized in that A first intermediate section (14) is also connected between the first surface cooling section (4) and the fan section (5), and the second air outlet section (9) and the first intermediate section (14) are connected via the third control valve (13).

4. The air conditioning unit according to claim 1, wherein: A sixth control valve (18) is installed at the air inlet of the first air inlet section (1), and a seventh control valve (19) is installed at the air outlet of the second air inlet section (8).

5. The air conditioning unit according to claim 1, characterized in that: The fan section (5) comprises: a plurality of fan components arranged in parallel.

6. The air conditioning unit according to claim 1, characterized in that: A third filter section (20) is also connected between the fan section (5) and the muffler section (6).

7. An air conditioning control method, characterized in that: The air conditioning unit according to any one of claims 1 to 6 is used, wherein the method comprises: If it is detected that the current moment is within a preset first time period, the first control valve (7) is opened to allow the air sucked in through the first air inlet section (1) to be dispersed into the area to be refrigerated via the first air conditioning channel (22); If it is detected that the current moment is within the preset second time period, the first control valve (7) is closed, and the second control valve (12) and the third control valve (13) are opened, so that the air sucked in through the first air inlet section (1) is sequentially dispersed into the area to be refrigerated through the second air conditioning channel (23) and the first air conditioning channel (22).

8. The air conditioning control method according to claim 7, characterized in that: The method specifically includes: If it is detected that the current moment is within a preset first time period, the first control valve (7) is opened, so that the air sucked in through the first air inlet section (1) passes through the first filter section (3), the first surface cooling section (4), the fan section (5) and the muffler section (6) in sequence and then is dispersed into the area to be refrigerated; If it is detected that the current moment is within the preset second time period, the first control valve (7) is closed, and the second control valve (12) and the third control valve (13) are opened, so that the air sucked in through the first air inlet section (1) passes through the second filter section (10), the second surface cooling section (11), the fan section (5) and the muffler section (6) in sequence and then is dispersed into the area to be refrigerated.

9. The air conditioning control method according to claim 7, characterized in that: The method specifically includes: If it is detected that the current moment is within a preset first time period, the first control valve (7) and the fifth control valve (17) are opened, so that the air sucked in through the first air inlet section (1) passes through the first filter section (3), the first surface cooling section (4), the fan section (5) and the muffler section (6) in sequence and then is dispersed into the area to be refrigerated; If it is detected that the current moment is within the preset second time period, the first control valve (7) and the fifth control valve (17) are closed, and the second control valve (12), the third control valve (13) and the fourth control valve (16) are opened, so that the air sucked in through the first air inlet section (1) passes through the second filter section (10), the second surface cooling section (11) and the fan section (5) in sequence and then is dispersed into the area to be refrigerated.

10. The air conditioning control method according to claim 7, characterized in that: The method further includes: adjusting the number of opened fan components according to the currently required air output.

11. The air conditioning control method according to claim 7, characterized in that: The method further includes: if it is detected that the current moment is within a preset third time period, closing all control valves.

12. The air conditioning control method according to claim 11, characterized in that: The first time period is set as the subway peak operation period, the second time period is set as the subway off-peak period; and the third time period is set as the subway suspension period.

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