TWI730929B - Air conditioning system and controlling method using the same - Google Patents

Abstract

The present invention discloses an air conditioning (AC) system, which comprises an outdoor-air intake control device, at least one air-supply chain and at least one cascading duct. The major intake device comprises a major blower. The at least one air-supply chain comprises ’n’ sub air-supply regions each having at least one air inlet and at least one air outlet. The at least one cascading duct is used to one-to-one cascade each of the n sub air-inlet regions by sequentially connecting with the at least one air inlet and/or the at least one air outlet of each of the ‘n’ sub air-inlet regions, wherein ‘n’ is an integer and n>1 and at least one of the at least one cascading duct is a partition wall connecting any two sub air-inlet regions.

Description

Air conditioning system and its control method

The invention relates to an air conditioning system and a control method thereof, in particular to an air conditioning system used in the technical field of air conditioning (AC), which is used to optimize the existing air conditioning system.

Please refer to FIGS. 1-2. FIG. 1 is a schematic diagram of the pipeline configuration of a conventional air-conditioning (AC) system 10; FIG. 2 is a schematic structural diagram of a conventional air-conditioning (AC) system 10. In the conventional air conditioning system 10, an indoor ventilation device 195 is used for air circulation in the indoor space, and the main fan 110 is used to introduce outdoor air 190 (generally speaking, the outdoor air 190 is an area where a building communicates with the outdoors, such as a balcony. ) Exchange with indoor air to take away harmful substances in indoor air, such as carbon dioxide, formaldehyde, etc. The air will be delivered to each sub-air supply area 130 through the air inlet 131 through the air inlet duct 167 in parallel, and then sent back to the indoor ventilation device 195 through the air outlet 132 through the air outlet duct 169. Exhaust gas 192 is also exhausted as appropriate. Basically, the indoor ventilation device mentioned in the present invention is commonly known as a total heat exchanger. Although it has a heat exchange function, its main purpose is to maintain indoor air quality and is not suitable for temperature adjustment. Because the length of the inlet air pipe 167 and the outlet air pipe 169 will affect the air volume (generally speaking, the longer the pipeline, the more severe the loss of air volume. Therefore, the indoor ventilation device 190 is usually installed in the center of the indoor space (as shown in Figure 1) to avoid the problem of uneven air volume distribution in each space. When setting up an indoor space, in order to be beautiful, it is usually covered by a ceiling, which will cause the height of the local or indoor space to decrease. According to statistics, when the indoor height drops below 2.4 meters, it will cause pressure and discomfort to people. Please also refer to Figure 3, a schematic diagram of the air inlet duct 167 and the beam 168. Generally, indoor spaces usually have beams, and the air inlet duct 167 can usually be handled in two ways: 1. Make a hole on the beam; 2. Form the air inlet duct 167 into a U-shape (as shown in Figure 3). ); 3. Use a ventilated lintel (a flat space is formed under the beam to allow air to flow). The first method, although feasible, is usually not recommended for building regulations and structural safety; the second and third methods will cause a large amount of air loss, resulting in insufficient ventilation or the need for the rear connection space Retrofit a larger full heat exchanger.

Furthermore, because with the same air volume, the smaller the diameter of the air duct, the greater the air loss. Generally, 6-inch (approximately 15 cm) air ducts are recommended for the indoor space of a home. If the second method is used, the height of the ceiling needs to be lowered by 20-30 cm from below the beam 168 (it may even be necessary to lower the ceiling). Lower).

However, the height of the indoor space is very important to the quality of living. Therefore, if the air duct can be reduced or even eliminated, there is no need to reduce the height of the ceiling due to the installation of the air duct. It is important to note that the air ducts (inlet air duct 167 and outlet air duct 169) of the conventional air conditioning (AC) air conditioning system 10 usually need to cover the entire Above the indoor space (as shown in Figure 1).

Therefore, the conventional technology has: 1. The use of a large number of air ducts causes an increase in cost, difficulty in construction, and a decrease in ceiling height in most indoor spaces; 2. The lintel part will cause the ceiling to decrease (U-shaped lintel) or air volume Loss (ventilated lintel).

Therefore, it is necessary to propose an innovative air conditioning system and its control method to solve the above technical problems.

In order to solve the above-mentioned problems of the conventional technology, the present invention provides an air conditioning system and a control method thereof. First, a plurality of sub-air supply areas are connected through a series channel to sequentially supply air. Compared with the conventional parallel air duct (each one The air pipes in the sub-air supply area need to be connected to the indoor ventilation device) to reduce the use of most air pipes (the length of the air pipe only needs to be connected to the adjacent sub-air supply areas); In the partition wall of the air area, the air ducts needed by the adjacent sub air supply areas are further removed significantly. There is no need to use a large number of air ducts and reduce the height of the ceiling as in the conventional air conditioning system.

To achieve the above objective, the present invention provides an air conditioning system, which includes an indoor ventilation device, at least one air supply chain area, and at least one serial channel.

The indoor ventilation device is used for receiving an outdoor air. The indoor ventilation device includes a main fan. The at least one gas supply chain area includes n sub gas supply areas. Each sub-air supply area includes at least one air inlet and at least one air outlet. The at least one series channel is connected to each of the n sub-air supply regions in sequence through There is one less air outlet and/or the at least one air inlet, and the n sub-air supply areas are connected in series one by one. Where n is an integer and n>1. The at least one air inlet of each sub-air supply region is only connected to one series channel of the at least one series channel, and the at least one air outlet of each sub-air supply region is only connected to another series channel of the at least one series channel. The n sub-air supply areas connected in series one by one include the at least one air inlet of the first sub-air supply area connected to the air outlet of the main fan via the at least one series passage, and the at least one air-supply port of the nth sub-air supply area. An air inlet is connected to the at least one air outlet of the n-1th sub air supply area and the at least one air outlet of the nth sub air supply area is connected to an exhaust pipe and returned to the indoor ventilation device.

In a preferred embodiment, at least one of the at least one serial passage is a partition wall connecting any two of the sub-air supply areas.

In a preferred embodiment, when n>2, the n sub-air supply areas serially connected one by one include the m-th sub-supply area except for the first sub-air supply area and the n-th sub-air supply area. The at least one air inlet of the air area is connected to the at least one air outlet of the m-1th sub-air supply area, and the at least one air outlet of the m-th sub-air supply area is connected to the m+1th sub-air supply area The at least one air inlet, where m is an integer and n>m>1.

In a preferred embodiment, it further includes a sub-air conditioning unit, which is arranged inside each of the n sub-air supply areas.

In a preferred embodiment, it further includes at least one sub-fan, which is arranged in the at least one serial channel.

In order to achieve the above objective, the present invention also provides a control system for an air-conditioning system. The manufacturing method includes: firstly, conveying an outdoor air to at least one air supply chain area through a main fan of an indoor ventilating device; then, sequentially connecting the at least one air supply chain area through at least one series channel At least one air outlet and/or at least one air inlet of each of the n sub-air supply regions are connected in series to each of the n sub-air supply regions one by one, where n is an integer and n>1; then, through the at least one series connection The channel sequentially conveys air to each of the n sub-air supply areas of the at least one air supply chain area; then, the control method of the air-conditioning system further includes: communicating with an exhaust pipe through the air outlet of the n-th sub-air supply area And send it back to the indoor ventilation device. The at least one air inlet of each sub air supply area is only connected to one series channel of the at least one series channel, and the at least one air outlet of each sub air supply area is only connected to another series channel of the at least one series channel.

In a preferred embodiment, the control method of the air-conditioning system further includes: arranging a sub-air-conditioning unit in each of the n sub-air supply areas to homogenize the air in the sub-air supply areas.

In a preferred embodiment, the indoor ventilation device is arranged outside the at least one gas supply chain area.

In a preferred embodiment, at least one of the at least one serial passage is a partition wall connecting any two of the sub-air supply areas.

In a preferred embodiment, the control method of the air-conditioning system further includes at least one sub-air blower disposed in the at least one serial channel.

Compared with the prior art, the present invention only needs to connect a plurality of sub-air supply areas with at least one serial channel through a fan to sequentially supply air. Compared with the conventional parallel air duct (the air duct of each sub-air supply area needs to be connected to the indoor ventilation device), it reduces the use of most air ducts (the length of the air pipe only needs to be connected to the adjacent sub-air supply area); Furthermore, by arranging the series channels in the partition walls of the adjacent sub-air supply areas, the air ducts required by the adjacent sub-air supply areas are further removed significantly. There is no need to use a large number of air ducts and reduce the height of the ceiling as in the conventional air conditioning system.

10, 100: air conditioning system

110: Main fan

120: Sub-fan

125: sub air conditioning unit

130: Sub gas supply area

131: Inlet

132: Exhaust

150: Gas supply chain area

165: Series channel

167: Air inlet duct

168: beam

169: Exhaust Air Pipe

170: exhaust pipe

180: Partition Wall

190: outdoor air

192: Exhaust Gas

195: Indoor ventilation device

Arrow direction: air flow direction

A: area

S01-S05: Step

Figure 1 is a schematic diagram of the pipeline configuration of the conventional air conditioning system; Figure 2 is a schematic diagram of the architecture of the conventional air conditioning system of Figure 1; Figure 3 is a schematic diagram of the air inlet duct lintel; Figure 4 , Shows a schematic diagram of the pipeline configuration of the air conditioning system according to the present invention; Figure 5 shows an enlarged schematic diagram of area A according to Figure 4; Figure 6 shows a schematic diagram of the architecture of the air conditioning system according to the present invention; and Figure 7 The figure illustrates the control method of the air conditioning system according to the present invention.

The descriptions of the following embodiments refer to the drawings to illustrate specific embodiments that the present invention can be implemented. The directional terms mentioned in the present invention, such as "up", "down", "front", "rear", "left", "right", "inner", "outer", "side", etc., are for reference only The direction of the schema. Therefore, the directional terms used are used to describe and understand the present invention, rather than to limit the present invention.

Please refer to Figures 4-6 first, Figure 4 shows the air conditioner according to the present invention A schematic diagram of the pipeline configuration of the system 100; FIG. 5 is an enlarged schematic diagram of area A according to FIG. 4; and FIG. 6 is a schematic structural diagram of an air conditioning system according to the present invention. The air conditioning system 100 includes an indoor ventilation device 195, at least one air supply chain area 150, and at least one serial channel 165. Wherein, the sub-air-conditioning unit 125 is provided in Fig. 4 and the sub-air-conditioning unit 125 is not provided in Fig. 6 for illustration, and it is not limited thereto.

The indoor ventilation device 195 includes a main fan 110. The indoor ventilation device 195 is used to receive outdoor air 190. Generally speaking, the indoor ventilating device 195 will include a basic filter unit (not shown). However, as requirements change, the filter unit can be further used to remove harmful gases such as formaldehyde. Basically, the indoor ventilator 195 does not have the function of temperature adjustment, and its main function is to provide the indoor space to maintain the concentration of carbon dioxide and other harmful human gases in the indoor air in a closed condition (doors and windows are closed). In this preferred embodiment, a home space is used for illustration, and only the area in the lower left corner (the area where the indoor ventilation device 195 is located) is a balcony (non-closed space). The air inlet 151 of the air supply chain area 150 is in communication with the main fan 110. The air supply chain area 150 includes 6 sub air supply areas 130 (all in a closed state), and each sub air supply area 130 includes an air inlet 131 and An air outlet 132 (can be added according to the situation).

Each series channel 165 is used to sequentially connect the at least one air outlet 132 and/or the at least one air inlet 131 of each of the n sub-air supply regions in the corresponding air supply chain region 150, and then connect each air inlet in series one by one. One of the n sub-air supply areas 130 to provide the required indoor air supply, wherein the at least one series channel 165 is serially connected one by one to each of the at least one air supply chain area 150 adjacent to two sub-air supply areas 130 opposite to each other The air outlet 132 and the air inlet 131 should be used. Figure 6 shows two air supply chain areas 150 connected in parallel at the front end (independent air inlet ducts 167 can also be used at the forefront; Figure 4 shows one air supply chain area 150 as an example. Examples illustrate the invention.

Preferably, multiple air inlets 131 and/or multiple air outlets 132 can be provided in each sub-air supply area 130 as appropriate. It should be noted that the multiple air inlets 131 and/or multiple air outlets 132 are all Connected to the series channel 165 in parallel.

It should be noted that each sub-air supply area 130 in the present invention is only connected to two series channels 165, and the two series channels 165 are respectively connected to multiple air inlets 131 and/or multiple air outlets 132. Because the setting in each sub-air supply area 130 has been eliminated in the present invention, if there are more than two series channels 165 in the same sub-air supply area 130 (that is, more than one series channel 165 is used for air outlet or inlet) , It may cause insufficient or excessive air intake of any two sub air supply areas 130 connected to the sub air supply area 130 (assuming that one series channel 165 is used for air intake; two series channels 165 are used for air outlet) . Therefore, the present invention can maintain one inlet and one outlet by restricting each sub-air supply area 130 (one series channel 165 is used for air intake; one series channel 165 is used for air outlet), and furthermore, it can maintain each sub-supply area better than the prior art. The amount of air exchange in the air zone.

Preferably, since n is an integer and n>1, the n sub-air supply regions 130 connected in series one by one include the at least one air inlet 131 of the first sub-air supply region 130 through the at least one serial channel 165 The at least one air outlet 112 of the main fan 110 and the at least one air inlet 131 of the n-th sub-air supply area 130 are connected to the at least one air outlet 132 of the n-1th sub-air supply area and the n-th sub-supply area The at least one air outlet 132 of the air area is connected to an exhaust pipe 170 and returned to the indoor ventilation device 195.

Preferably, when n>2, the n sub-air supply regions 130 serially connected one by one include the m-th sub-air supply region except the first sub-air supply region 130 and the n-th sub-air supply region 130 The at least one air inlet 131 of the area 130 is connected to the at least one air outlet 132 of the m-1th sub-air supply area 130, and the at least one air outlet 132 of the m-th sub-air supply area 130 is connected to the m+1 The at least one air inlet 131 of each sub-air supply area 130, where m is an integer and n>m>1.

In Figure 4, starting from the indoor ventilation device 195, air is sequentially delivered to the five sub-air supply areas 130 in a counterclockwise manner. When each sub-air supply area 130 is in a closed state, air can be delivered to each sub-air supply area 130 in sequence. In this state, the series channel 165 (air duct) only needs to connect two adjacent sub-air supply areas 130, which can reduce the use of a large number of air ducts compared with the prior art using a large number of air inlet ducts and air outlet ducts. However, despite reducing the use of a large number of air ducts, the ceiling height still cannot be increased.

In view of this, a series channel 165 can be arranged in the partition wall 180 of the adjacent sub-air supply area 130, and there is no need to use the air duct (series channel 165) connecting the adjacent sub-air supply area 130. On the premise that the adjacent sub-air supply areas can transport air without the need for air ducts, the height of the ceiling can be effectively increased.

Finally, referring to Fig. 5 again, a sub-fan 120 can be further installed in the series channel 165 to enhance the effect of ventilation. Taking Fig. 6 as an example, a sub-fan 120 may be installed in part of the partition wall 180 as appropriate. Preferably, the sub-fan 120 Fans and fans can be used, because the serial air supply chain (one in and one out) used in the present invention will not cause uncomfortable noise according to the actual implementation of the inventor. And preferably, the fan can be completely arranged in the series channel 165 (ie, the partition wall 180), without connecting the ceiling for operation.

In Figure 6, the air conditioning system 100 includes two air supply chain areas 150. Each gas supply chain area 150 includes five sub gas supply areas 130. (I.e. n=5, m=2-4) Taking the gas supply chain area 150 located in the upper half as an example, the n sub gas supply areas 130 include a first sub gas supply area 130 (the leftmost one) and at least one Second sub gas supply area (the rest). The at least one air inlet 131 of the first sub-air supply area 130 communicates with the air inlet 151 of the air supply chain region 150 (that is, a part of the at least one series passage 165); then, continue to pass through the at least one series passage 165. The at least one air outlet 132 of the first sub-air supply area 130 is connected to the at least one air inlet 131 of a second sub-air supply area 130 (second from the left) adjacent to the first sub-air supply area 130; By analogy, the at least one air outlet 132 of the rightmost sub-air supply area 130 is finally discharged to an exhaust pipe 170 and returned to the indoor ventilation device. Therefore, each of the at least one series channel 165 is sequentially connected to the at least one air outlet 132 and/or the at least one air inlet 131 of each of the n sub-air supply regions in the corresponding air supply chain region 150, and then one by one Each of the n sub-air supply areas 130 are connected in series to provide the required indoor air supply. In Figure 6, the exhaust pipes 170 connected to the two air supply chain regions 150 located in the upper and lower halves can be selectively connected or sent back to the indoor ventilation device 195 respectively. The following preferred embodiments are also As in this preferred embodiment, it will not be repeated.

Preferably, a sub air conditioning unit 125 can also be provided in each sub air supply area 130. The sub-air-conditioning unit 125 here is also a common air conditioner, which mainly provides the function of changing the temperature. In the preferred embodiment, each sub-air-conditioning unit 125 is independent, but it can also be one-to-many air-conditioning. Is limited. Preferably, the sub air conditioning unit 125 does not have a ventilation function. Thereby, the indoor ventilation device 195 is responsible for ventilation and the sub-air conditioning unit 125 is responsible for temperature adjustment to maintain the indoor air quality to the greatest extent. However, in a further step, the indoor ventilation device 195 or the sub-fan 120 may also have a temperature adjustment function, and it is not limited thereto.

In Figure 4, it can be seen that when the indoor ventilation device 195 is connected to the sub-air area 130 on the right by the balcony at the lower left corner, the air duct is still used. In actual operation, since the balcony is generally connected to the toilet or kitchen, people are The height of the ceiling is relatively insensitive, so in the present invention, the air duct is still used in this area, because as long as it enters any indoor space (sub-air supply area 130), the adjacent sub-supply chain can be used for adjacent sub-supply. Ventilation of the air zone 130.

Comparing Figure 4 and Figure 1, it can be clearly understood that the air inlet pipe 167 in Figure 4 is only a short section, and the length of the exhaust pipe 170 (equivalent to the air outlet pipe 169) is also very short, which saves money. The lower air duct not only reduces the material cost, but also saves labor and reduces the ceiling height because there is no need to carry out a large number of conventional air duct installations.

In a preferred embodiment, it is assumed that the balcony, the kitchen, and the toilet are from left to right. Generally speaking, the air in the toilet needs to be independent of other indoor spaces For ventilation, therefore, the partition wall 180 can be used as the series passage 165 in the toilet area; that is, the toilet part still uses the air duct, but as explained in the previous paragraph, people are less concerned about the ceiling height of the toilet (or kitchen). sensitive. Even so, the effect of raising the ceiling height and reducing the installation of air ducts in the ceiling can still be achieved in the remaining main living spaces.

In a preferred case, at least one serial channel 165 adopts a partition wall 180 and is provided with a sub-air-conditioning unit 125. Because the temperature adjustment is performed by the sub air conditioning unit 125 after the air enters each sub air supply area 130, energy loss can be reduced (the adjusted air does not need to be transported over a long distance), so that all sub air supply areas 130 The temperature can be consistent with the set value. At the same time, the sub-air-conditioning unit 125 can simultaneously homogenize the air in the sub-air supply area 130 by blowing out the temperature-adjusted air. However, in a better case, each sub-air supply area 130 of the air supply chain area 150 is in an ideal closed state (gas can only be delivered through the air inlet 131 and the air outlet 132, and the sub air-conditioning unit 125 is also No need for ventilation), the air will naturally form a flow direction (the arrow direction in the figure) because the pressure is closer to the internal ventilation device 195 (such as the first sub-air supply area 130 on the right side of the balcony). ); However, in actual situations, each sub-air supply area will not be completely sealed, so arranging the sub-fan 120 in the series passage 165 can effectively transport the air from one sub-air supply area 130 to the other sub-air supply area 130 .

Preferably, and because there is no need to consider the attenuation of the air volume caused by the length of the air pipe and the problem of different air volume in different sub-air supply areas caused by different lengths of air pipes, the indoor ventilation device 195 can be installed outside the at least one air supply chain. Ground Fang, as in the above example, can be installed in areas that communicate with the outdoors, such as balconies, without affecting the ceiling height of the indoor space (sub-air supply area) at all. Taking Fig. 4 as an example, the indoor ventilation device 195 can even be installed against the partition wall 180 between the balcony (the first left in the lower row) and the kitchen (the second left in the lower row) to save the air inlet duct 167; the same goes for It is also possible to install the indoor ventilation device 195 against the partition wall 180 between the balcony (the first left in the lower row) and the sub-air supply area above the balcony to save the air outlet duct 169. That is, if it is a general industrial or commercial space (toilet, kitchen, etc., independent exhaust is required to avoid affecting the work space), it is even possible to completely eliminate the need for air ducts, and completely rely on the partition wall 180 to provide air to the adjacent sub-air supply area 130. transmission. And because each sub-air supply area 130 in the present invention adopts one-way serial connection to connect adjacent sub-air supply areas, to a certain extent, when the air supply volume of the main fan 110 is large enough, even if it is only set on the partition wall In the series passages 165 on the 180, air can also be delivered to each sub-air supply area 130 in sequence. (As shown in Figure 4, it will be delivered to each sub-air supply area 130 in a counterclockwise manner from the balcony in the lower left corner)

Figure 7 shows the control method of the air conditioning system according to the present invention. For the devices mentioned in this control method, please refer to Figure 3-6, which will not be repeated. In step S01, an outdoor air 190 is delivered to at least one air supply chain area 150 through a main fan 110 of an indoor ventilation device 195; then, in step S02, the at least one air supply chain is sequentially connected through at least one serial channel 165 At least one air inlet 131 and/or one air outlet 132 of each of the n sub-air supply areas of the zone 150 are further connected in series to each of the n sub-air supply areas 130 one by one, where n is an integer and n>1; then, Step S03, convey the air to the at least one air supply chain through the at least one serial channel 165 Each of the n sub-air supply areas 130 of the zone 150; then, step S04, connect to an exhaust pipe 170 through the air outlet 132 of the n-th sub-air supply area and return to the indoor ventilation device 195; then, step S05 , A sub air-conditioning unit 125 is arranged in each of the n sub-air supply areas 130 to homogenize the sub-air supply areas.

The at least one air inlet 131 of each sub-air supply region 130 is only connected to one series channel 165 of the at least one series channel 165, and the at least one air outlet 132 of each sub-air supply region 130 is only connected to the at least one series channel 165 another serial channel 165.

Generally speaking, to evaluate the operation of an air-conditioning system, all doors are closed as the design standard. For example, in Figure 4, after all the doors are closed, the air can be transmitted to each space (sub-air supply area 130) basically in a counterclockwise direction.

Compared with the conventional technology, the present invention only needs to connect a plurality of sub-air supply areas with at least one serial channel to supply air in sequence by a fan. Compared with the conventional parallel air duct (the wind of each sub-air supply area) The pipes need to be connected to the indoor ventilation device) to reduce the use of most of the air pipes (the length of the air pipe only needs to be connected to the adjacent sub-air supply area); then further by setting the series channel in the compartment of the adjacent sub-air supply area In the wall, the air ducts needed for the adjacent sub-air supply areas are further removed significantly. There is no need to use a large number of air ducts and reduce the height of the ceiling as in the conventional air conditioning system.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention Next, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

100: Air conditioning system

110: Main fan

125: sub air conditioning unit

130: Sub gas supply area

131: Inlet

132: Exhaust

167: Air inlet duct

170: exhaust pipe

180: Partition Wall

190: outdoor air

192: Exhaust Gas

195: Indoor ventilation device

Arrow direction: air flow direction

A: area

Claims (8)

An air-conditioning system includes: an indoor ventilation device for receiving outdoor air, which includes a main fan; at least one air supply chain area, including n sub-air supply areas, each of the sub-air supply areas includes at least one air inlet And at least one air outlet; and at least one serial channel, which are connected in series via the at least one air inlet and/or the one air outlet of the n sub-air supply regions of each of the at least one air supply chain region in sequence The n sub-air supply areas, the at least one air inlet of each sub-air supply area is only connected to a series channel of the at least one series channel, and the at least one air outlet of each sub-air supply area is only connected to the at least one series channel Where n is an integer and n>1, the n sub-air supply areas connected in series one by one include the air inlet of the first sub-air supply area connected to the outlet of the main fan via the at least one series channel The air port and the air inlet of the nth sub-air supply area are connected to the air outlet of the n-1th sub-air supply area, and the air outlet of the nth sub-air supply area is connected to an exhaust pipe and sent back to the indoor ventilation device At least one of the at least one serial passage is a partition wall connecting any two of the sub-air supply areas. The air conditioning system according to claim 1, wherein when n>2, the n sub-air supply areas connected one by one in sequence include the first sub-air supply area and the n-th sub-air supply area. The at least one air inlet of the m sub-air supply areas is connected to the at least one air outlet of the m-1th sub-air supply area, and the at least one air outlet of the m-th sub-air supply area is connected to the m+1th sub-supply. The at least one gas inlet of the gas zone, where m is an integer and n>m>1. The air-conditioning system according to claim 1, which further includes a sub-air-conditioning unit arranged in each of the n sub-air supply areas. The air conditioning system according to claim 1, further comprising at least one sub-fan installed in the at least one string In the joint channel. A control method of an air conditioning system includes: conveying an outdoor air to at least one air supply chain area through a main fan of an indoor air ventilating device; and sequentially connecting each of the at least one air supply chain area through at least one series channel At least one air inlet and/or one air outlet of the n sub-air supply areas are further connected in series to each of the n sub-air supply areas one by one, where n is an integer and n>1; the air is sequentially delivered through the at least one serial channel To each of the n sub-air supply areas; and connect to an exhaust pipe through the outlet of the n-th sub-air supply area and return to the indoor ventilation device; wherein the at least one air inlet of each sub-air supply area is only A series channel connecting the at least one series channel and the at least one air outlet of each of the sub-air supply areas are only connected to another series channel of the at least one series channel, and at least one of the at least one series channel is connected to any two of the sub-supply A partition wall in the gas area. The control method of the air-conditioning system according to claim 5, further comprising: arranging a sub-air-conditioning unit in each of the n sub-air supply areas to homogenize the air in the sub-air supply areas. The control method of the air conditioning system according to claim 5, wherein the indoor ventilation device is arranged outside the at least one air supply chain area. The control method of the air conditioning system according to claim 5, further comprising at least one sub-fan installed in the at least one series channel.

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