Central air conditioning system, air conditioning control method and control device

Abstract

The application provides a central air conditioning system, an air conditioning control method and a control device, the air conditioning system comprising a water collector, a water distributor and a plurality of air conditioning units; the water inlet end and the water outlet end of the air conditioning unit are connected to the output end of the water collector and the input end of the water distributor through a water collecting pipe and a water distributing pipe respectively, the input end of the water collector and the output end of the water distributor are connected to the water collecting branch pipe and the water distributing branch pipe of each object area respectively; the water inlet end and the water outlet end of each air conditioning unit are also connected to a water collecting bypass pipe and a water distributing bypass pipe respectively, the terminal ends of the water collecting bypass pipe and the water distributing bypass pipe are connected to the water collecting branch pipe and the water distributing branch pipe of each object area through a plurality of parallel branch pipes. Based on the technical scheme of the application, when a special temperature is required in the object area, any air conditioning unit can be separated from the entire central air conditioning system to independently control the temperature of the object area, and the load change caused thereby will not be transmitted to other air conditioning units, thereby achieving good energy saving.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to a central air conditioning system, an air conditioning control method, and a control device. Background Technology

[0002] In conventional air conditioning systems, the chilled water units are connected in parallel to supply water to the terminals, and the chilled water outlet temperature setpoints of the units are generally the same. When changes occur at the terminals, the units adjust the outlet water temperature according to the terminal load.

[0003] Air conditioning system terminals typically cater to different environments, requiring either active or passive adjustments to the air conditioner's outlet water temperature. For example, in a subway system, the humidity in equipment rooms is relatively low, while the humidity in public areas is higher, resulting in a significant temperature difference. In this case, the unit's outlet water temperature needs to be lowered based on the humidity level to control the temperature in the humid environment—this is a passive change of the environment. Another type involves specific human needs, where adjustments are made to meet specific environmental requirements in a particular area—this is an active change of the environment.

[0004] When the environment in a certain area changes, the conventional temperature control method is for the air conditioning system to adjust according to the highest demand. For example, if the humidity in the station hall area is high, the air conditioning system will directly adjust the chilled water outlet temperature of the air conditioning main pipe to solve the temperature problem of the high humidity environment. In other words, the outlet water temperature of each unit will be adjusted uniformly. As a result, the demand in other areas will be passively increased, energy consumption will increase, and the energy-saving effect will not be ideal. Summary of the Invention

[0005] To address the problem that existing air conditioning systems cannot independently control individual units as needed, this invention proposes a central air conditioning system, an air conditioning control method, and a control device.

[0006] In a first aspect, the present invention proposes a central air conditioning system corresponding to multiple target areas, which includes a water collector, a water distributor, and multiple air conditioning units.

[0007] The inlet and outlet of the air conditioning unit are connected to the output of the water collector and the input of the water distributor via a water collection pipe and a water distribution pipe, respectively. The input of the water collector and the output of the water distributor are connected to the water collection branch pipe and the water distribution branch pipe of each of the target areas, respectively.

[0008] Each air conditioning unit is further connected to a water collection bypass pipe and a water distribution bypass pipe at its inlet and outlet ends, respectively. The end of the water collection bypass pipe is connected to the water collection branch pipe of each target area through multiple parallel water collection branch pipes, and the end of the water distribution bypass pipe is connected to the water distribution branch pipe of each target area through multiple parallel water distribution branch pipes.

[0009] In one embodiment, the number of air conditioning units is not less than the number of target areas.

[0010] In one embodiment, a water collection valve is provided on the water collection pipe, the water collection branch pipe, and the water collection sub-branch pipe, and a water distribution valve is provided on the water distribution pipe, the water distribution branch pipe, and the water distribution sub-branch pipe.

[0011] In one embodiment, the water collecting valve on the water collecting branch pipe is located between the water collector and the water collecting branch pipe at the connection point on the water collecting branch pipe, and the water distributing valve on the water distributing branch pipe is located between the water distributor and the water distributing branch pipe at the connection point on the water distributing branch pipe.

[0012] In one embodiment, the water collection bypass pipe and the water collection pipe merge into the water collection main pipe, the water collection main pipe is connected to the water inlet of the air conditioning unit, and a water pump is installed on the water collection main pipe.

[0013] In one embodiment, the water inlet and water outlet of the air conditioning unit are the water inlet and water outlet of the evaporator of the air conditioning unit.

[0014] Secondly, the present invention provides an air conditioning control method, comprising the following steps:

[0015] Obtain environmental parameters and / or setting parameters for each object region, and determine whether there are specific regions in the object region where the values ​​of the environmental parameters and / or setting parameters deviate from the overall level;

[0016] If the specific region exists, an independent control mode is activated for the specific region, while the other object regions are controlled normally. The independent control mode includes:

[0017] Connect the water collection branch pipe of the specific area to the water inlet of any one or more target air conditioning units in the air conditioning system, disconnect the water collection branch pipe to the water collector of the air conditioning system, and disconnect the water collector to the water inlet of the target air conditioning unit.

[0018] Connect the branch pipe of the specific area to the outlet of the target air conditioning unit directly, disconnect the branch pipe to the water distributor of the air conditioning system, and disconnect the water distributor to the outlet of the target air conditioning unit.

[0019] In one implementation, the normal control mode includes:

[0020] Disconnect the direct connection between the water collection branch pipe of the target area and the water inlet of all air conditioning units in the air conditioning system; connect the water collection branch pipe of the target area to the water collector of the air conditioning system; and connect the water collector to the water inlet of all other air conditioning units except the target air conditioning unit.

[0021] Disconnect the direct connection between the branch pipe of the target area and the outlet of all air conditioning units in the air conditioning system; connect the branch pipe of the target area to the water distributor of the air conditioning system; and connect the water distributor to the outlet of all other air conditioning units except the target air conditioning unit.

[0022] In one embodiment, the environmental parameters include at least temperature and humidity values, and the setting parameters include at least temperature values.

[0023] Thirdly, the present invention provides an air conditioning control device, comprising:

[0024] The data processing module is used to acquire environmental parameters and / or setting parameters for each object region, and to determine whether there are specific areas in the object region where the values ​​of the environmental parameters and / or setting parameters deviate from the overall level;

[0025] The pipeline control module is used to activate an independent control mode for the specific area when the specific area exists, and to use a normal control mode for other object areas.

[0026] The independent control modes include:

[0027] Connect the water collection branch pipe of the specific area to the water inlet of any one or more target air conditioning units in the air conditioning system, disconnect the water collection branch pipe to the water collector of the air conditioning system, and disconnect the water collector to the water inlet of the target air conditioning unit.

[0028] Connect the branch pipe of the specific area to the outlet of the target air conditioning unit directly, disconnect the branch pipe to the water distributor of the air conditioning system, and disconnect the water distributor to the outlet of the target air conditioning unit.

[0029] The above-mentioned technical features can be combined in various suitable ways or replaced by equivalent technical features, as long as the purpose of the present invention can be achieved.

[0030] The central air conditioning system, air conditioning control method, and control device provided by this invention have at least the following advantages compared with the prior art:

[0031] The present invention discloses a central air conditioning system, an air conditioning control method, and a control device. The design of the central air conditioning system piping structure enables any one or more air conditioning units to be independently and directly connected to the piping of the corresponding target area. When a special temperature requirement occurs in the target area, the corresponding air conditioning unit can be isolated from the entire central air conditioning system to independently control the temperature of the target area. This ensures that the load changes caused by the special temperature requirement are not transmitted to other air conditioning units in the central air conditioning system, thus exhibiting good energy efficiency. Attached Figure Description

[0032] The invention will now be described in more detail with reference to embodiments and the accompanying drawings.

[0033] Figure 1 A schematic diagram of the piping structure of the air conditioning system of the present invention is shown;

[0034] Figure 2 This figure shows a schematic diagram of the piping structure of the air conditioning system of the present invention when region 1 is independently controlled by unit 1;

[0035] Figure 3 The diagram shows a schematic of the piping structure of the air conditioning system of the present invention when region one is independently controlled by unit two.

[0036] Figure 4 The diagram shows a schematic of the piping structure of the air conditioning system of the present invention when area 1 is independently controlled by unit 3.

[0037] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0038] Figure label:

[0039] 1-Air conditioning unit, 2-Water collector, 3-Water distributor, 4-Water collection pipe, 5-Water distribution pipe, 6-Water collection branch pipe, 7-Water distribution branch pipe, 8-Water collection bypass pipe, 81-Water collection branch pipe, 9-Water distribution bypass pipe, 91-Water distribution branch pipe, 10-Water collection main pipe. Detailed Implementation

[0040] The invention will now be further described with reference to the accompanying drawings.

[0041] Example 1

[0042] An embodiment of the present invention provides a central air conditioning system corresponding to multiple target areas, including a water collector 2, a water distributor 3, and multiple air conditioning units 1; the inlet and outlet of the air conditioning unit 1 are connected to the output end of the water collector 2 and the input end of the water distributor 3 respectively through a water collection pipe 4 and a water distribution pipe 5, and the input end of the water collector 2 and the output end of the water distributor 3 are connected to the water collection branch pipe 6 and the water distribution branch pipe 7 of each target area respectively.

[0043] Each air conditioning unit 1 has a water inlet and an outlet connected to a water collection bypass pipe 8 and a water distribution bypass pipe 9, respectively. The end of the water collection bypass pipe 8 is connected to the water collection branch pipe 6 of each target area through multiple parallel water collection branch pipes 81, and the end of the water distribution bypass pipe 9 is connected to the water distribution branch pipe 7 of each target area through multiple parallel water distribution branch pipes 91.

[0044] Specifically, a central air conditioning system consists of multiple air conditioning units 1 connected in parallel. In existing technology, these multiple units operate together to regulate the temperature in their respective areas. This means that if a specific temperature requirement needs to be met in a particular area, the entire air conditioning system must be adjusted accordingly, which alters the load on each unit 1, leading to increased overall energy consumption and poor energy efficiency. To address these issues, this invention first designs the piping structure of the central air conditioning system.

[0045] As shown in the attached figure. Figure 1 As shown, multiple target areas are each equipped with a water collection branch pipe 6 and a water distribution branch pipe 7. The water distribution branch pipe 7 is used to transport the temperature control medium of the air conditioning unit 1 to the target area, and the water collection branch pipe 6 is used to supply the temperature control medium back to the air conditioning unit 1. First, in terms of the main structure of the pipeline, all the water collection branch pipes 6 are connected to the input end of the water collector 2 in parallel. The output end of the water collector 2 is connected to each air conditioning unit 1 through multiple parallel water collection pipes 4. The water collector 2 is used to collect the returned temperature control medium and distribute it to each air conditioning unit 1. All the water distribution branch pipes 7 are connected to the output end of the water distributor 3 in parallel. The input end of the water distributor 3 is connected to each air conditioning unit 1 through multiple parallel water distribution pipes 5. The water distributor 3 is used to collect the output temperature control medium and distribute it to each target area. Secondly, each water collection branch pipe 6 is also connected to a water collection bypass pipe 8 via a water collection branch pipe 81, and each water distribution branch pipe 7 is also connected to a water distribution bypass pipe 9 via a water distribution branch pipe 91. The water collection bypass pipe 8 and the water distribution bypass pipe 9 can directly connect the water collection branch pipe 6 and the water distribution branch pipe 7 to the air conditioning unit 1 without going through the water collector 2 and the water distributor 3. (See attached diagram) Figure 1 As shown, each air conditioning unit 1 is connected to a set of water collection bypass pipes 8 and water distribution bypass pipes 9. Each set of water collection bypass pipes 8 and water distribution bypass pipes 9 is connected to the water collection branch pipes 6 and water distribution branch pipes 7 of all target areas. That is, the number of water collection branch pipes 81 connected to the water collection branch pipe 6 and the number of water distribution branch pipes 91 connected to the water distribution branch pipe 7 correspond to the number of air conditioning units 1. The multiple water collection branch pipes 81 connected to the same water collection branch pipe 6 and the multiple water distribution branch pipes 91 connected to the same water distribution branch pipe 7 are all connected in parallel.

[0046] Under normal circumstances, there is no special temperature control requirement for each target area. The water collection bypass pipe 8 and water distribution bypass pipe 9 between each target area and each air conditioning unit 1 are disconnected. The water collection branch pipe 6 of each target area collects and returns the temperature control medium to the water collector 2, which then distributes it to each air conditioning unit 1 through the water collection pipe 4. The temperature control medium output by each air conditioning unit 1 flows through the water distribution pipe 5 to the water distributor 3, which then distributes it to each target area according to the temperature requirements.

[0047] When one or more target areas have specific temperature requirements, the temperature of that area is controlled independently. These specific temperature requirements can be based on the natural environmental factors of the target area or on manually set factors. (See attached diagram.) Figures 2 to 4 As shown in the figure, this embodiment uses the example of a specific temperature requirement in area one of the diagram. First, it's determined which air conditioning unit will independently control area one. This correspondence can be preset or determined in real-time based on the operation of the central air conditioning system. For example, if unit one is chosen to independently control area one, the pipe from the water collection branch pipe 6 of area one to the water collector 2 is disconnected; the pipe from unit one to the water collector 2 is disconnected; the pipe from unit one to the water distributor 3 is disconnected; and the pipe from the water distributor 3 to the water collection branch pipe 6 of area one is disconnected. Then, the pipe from the water collection branch pipe 6 of area one directly to unit one is connected, and the pipe from unit one directly to the water distributor branch pipe 7 of area one is connected. This means that the water collection branch pipe 6 of area one is connected to the water collection bypass pipe 8 of unit one through the corresponding water collection branch pipe 81, and the water distributor branch pipe 7 of area one is connected to the water distributor bypass pipe 9 of unit one through the corresponding water distributor branch pipe 91, as shown in the attached figure. Figure 2 As shown; where, in Figure 1 Based on the pipeline structure shown, Figure 2 The pipes shown are represented as connected pipes, and disconnected pipes are shown as... Figure 2 (Not shown in the diagram). Based on the control of the pipeline structure, in the overall structure of the central air conditioning system, it is equivalent to separating Area 1 and Unit 1 from the central air conditioning system, disconnecting them from other air conditioning units 1, forming an independent unit unit. Therefore, the corresponding target area can be independently operated and controlled by one or more air conditioning units 1 within this unit unit. Changes in unit load exist only within this unit unit and will not be transmitted to other air conditioning units 1 in the central air conditioning system. In this embodiment, an independent unit unit controls one target area independently; however, it can also be controlled jointly by multiple units.

[0048] Of course, the independent control of Zone 1 can also be achieved by other air conditioning units 1 in the same way, as shown in the attached diagram. Figure 3 Area 1 shown is independently controlled by Unit 2, or as shown in the attached diagram. Figure 4Area 1 shown is independently controlled by Unit 3. Furthermore, the independent control methods for other areas are the same as for Area 1, requiring only the control of the corresponding pipelines; these will not be elaborated further here.

[0049] Therefore, the present invention designs the structure of the central air conditioning system piping so that any one or more air conditioning units 1 can be independently and directly connected to the piping of the corresponding target area; when the target area has special temperature requirements, the corresponding air conditioning unit 1 can be isolated from the entire central air conditioning system to independently control the temperature of the target area, so that the load changes caused by the special temperature requirements will not be transmitted to other air conditioning units 1 in the central air conditioning system, thus having good energy saving performance.

[0050] In one embodiment, the number of air conditioning units 1 is not less than the number of object areas, so that each object area can correspond to at least one different air conditioning unit 1 when controlled independently, avoiding the inability to cope with the situation where multiple object areas need to be controlled independently at the same time.

[0051] In one embodiment, the water inlet and water outlet of the air conditioning unit 1 are the water inlet and water outlet of the evaporator of the air conditioning unit 1.

[0052] Example 2

[0053] An embodiment of the present invention provides a central air conditioning system corresponding to multiple target areas, including a water collector 2, a water distributor 3, and multiple air conditioning units 1; the inlet and outlet of the air conditioning unit 1 are connected to the output end of the water collector 2 and the input end of the water distributor 3 respectively through a water collection pipe 4 and a water distribution pipe 5, and the input end of the water collector 2 and the output end of the water distributor 3 are connected to the water collection branch pipe 6 and the water distribution branch pipe 7 of each target area respectively.

[0054] Each air conditioning unit 1 has a water inlet and an outlet connected to a water collection bypass pipe 8 and a water distribution bypass pipe 9, respectively. The end of the water collection bypass pipe 8 is connected to the water collection branch pipe 6 of each target area through multiple parallel water collection branch pipes 81, and the end of the water distribution bypass pipe 9 is connected to the water distribution branch pipe 7 of each target area through multiple parallel water distribution branch pipes 91.

[0055] Specifically, a central air conditioning system consists of multiple air conditioning units 1 connected in parallel. In existing technology, these multiple units operate together to regulate the temperature in their respective areas. This means that if a specific temperature requirement needs to be met in a particular area, the entire air conditioning system must be adjusted accordingly, which alters the load on each unit 1, leading to increased overall energy consumption and poor energy efficiency. To address these issues, this invention first designs the piping structure of the central air conditioning system.

[0056] As shown in the attached figure. Figure 1As shown, multiple target areas are each equipped with a water collection branch pipe 6 and a water distribution branch pipe 7. The water distribution branch pipe 7 is used to transport the temperature control medium of the air conditioning unit 1 to the target area, and the water collection branch pipe 6 is used to supply the temperature control medium back to the air conditioning unit 1. First, in terms of the main structure of the pipeline, all the water collection branch pipes 6 are connected to the input end of the water collector 2 in parallel. The output end of the water collector 2 is connected to each air conditioning unit 1 through multiple parallel water collection pipes 4. The water collector 2 is used to collect the returned temperature control medium and distribute it to each air conditioning unit 1. All the water distribution branch pipes 7 are connected to the output end of the water distributor 3 in parallel. The input end of the water distributor 3 is connected to each air conditioning unit 1 through multiple parallel water distribution pipes 5. The water distributor 3 is used to collect the output temperature control medium and distribute it to each target area. Secondly, each water collection branch pipe 6 is also connected to a water collection bypass pipe 8 via a water collection branch pipe 81, and each water distribution branch pipe 7 is also connected to a water distribution bypass pipe 9 via a water distribution branch pipe 91. The water collection bypass pipe 8 and the water distribution bypass pipe 9 can directly connect the water collection branch pipe 6 and the water distribution branch pipe 7 to the air conditioning unit 1 without going through the water collector 2 and the water distributor 3. (See attached diagram) Figure 1 As shown, each air conditioning unit 1 is connected to a set of water collection bypass pipes 8 and water distribution bypass pipes 9. Each set of water collection bypass pipes 8 and water distribution bypass pipes 9 is connected to the water collection branch pipes 6 and water distribution branch pipes 7 of all target areas. That is, the number of water collection branch pipes 81 connected to the water collection branch pipe 6 and the number of water distribution branch pipes 91 connected to the water distribution branch pipe 7 correspond to the number of air conditioning units 1. The multiple water collection branch pipes 81 connected to the same water collection branch pipe 6 and the multiple water distribution branch pipes 91 connected to the same water distribution branch pipe 7 are all connected in parallel.

[0057] Under normal circumstances, there is no special temperature control requirement for each target area. The water collection bypass pipe 8 and water distribution bypass pipe 9 between each target area and each air conditioning unit 1 are disconnected. The water collection branch pipe 6 of each target area collects and returns the temperature control medium to the water collector 2, which then distributes it to each air conditioning unit 1 through the water collection pipe 4. The temperature control medium output by each air conditioning unit 1 flows through the water distribution pipe 5 to the water distributor 3, which then distributes it to each target area according to the temperature requirements.

[0058] When one or more target areas have specific temperature requirements, the temperature of that area is controlled independently. These specific temperature requirements can be based on the natural environmental factors of the target area or on manually set factors. (See attached diagram.) Figures 2 to 4As shown in the figure, this embodiment uses the example of a specific temperature requirement in area one of the diagram. First, it's determined which air conditioning unit will independently control area one. This correspondence can be preset or determined in real-time based on the operation of the central air conditioning system. For example, if unit one is chosen to independently control area one, the pipe from the water collection branch pipe 6 of area one to the water collector 2 is disconnected; the pipe from unit one to the water collector 2 is disconnected; the pipe from unit one to the water distributor 3 is disconnected; and the pipe from the water distributor 3 to the water collection branch pipe 6 of area one is disconnected. Then, the pipe from the water collection branch pipe 6 of area one directly to unit one is connected, and the pipe from unit one directly to the water distributor branch pipe 7 of area one is connected. This means that the water collection branch pipe 6 of area one is connected to the water collection bypass pipe 8 of unit one through the corresponding water collection branch pipe 81, and the water distributor branch pipe 7 of area one is connected to the water distributor bypass pipe 9 of unit one through the corresponding water distributor branch pipe 91, as shown in the attached figure. Figure 2 As shown; where, in Figure 1 Based on the pipeline structure shown, Figure 2 The pipes shown are represented as connected pipes, and disconnected pipes are shown as... Figure 2 (Not shown in the diagram). Based on the control of the pipeline structure, in the overall structure of the central air conditioning system, it is equivalent to separating Area 1 and Unit 1 from the central air conditioning system, disconnecting them from other air conditioning units 1, forming an independent unit unit. Therefore, the corresponding target area can be independently operated and controlled by one or more air conditioning units 1 within this unit unit. Changes in unit load exist only within this unit unit and will not be transmitted to other air conditioning units 1 in the central air conditioning system. In this embodiment, an independent unit unit controls one target area independently; however, it can also be controlled jointly by multiple units.

[0059] Of course, the independent control of Zone 1 can also be achieved by other air conditioning units 1 in the same way, as shown in the attached diagram. Figure 3 Area 1 shown is independently controlled by Unit 2, or as shown in the attached diagram. Figure 4 Area 1 shown is independently controlled by Unit 3. Furthermore, the independent control methods for other areas are the same as for Area 1, requiring only the control of the corresponding pipelines; these will not be elaborated further here.

[0060] Therefore, the present invention designs the structure of the central air conditioning system piping so that any one or more air conditioning units 1 can be independently and directly connected to the piping of the corresponding target area; when the target area has special temperature requirements, the corresponding air conditioning unit 1 can be isolated from the entire central air conditioning system to independently control the temperature of the target area, so that the load changes caused by the special temperature requirements will not be transmitted to other air conditioning units 1 in the central air conditioning system, thus having good energy saving performance.

[0061] In one embodiment, the number of air conditioning units 1 is not less than the number of object areas, so that each object area can correspond to at least one different air conditioning unit 1 when controlled independently, avoiding the inability to cope with the situation where multiple object areas need to be controlled independently at the same time.

[0062] In one embodiment, the water inlet and water outlet of the air conditioning unit 1 are the water inlet and water outlet of the evaporator of the air conditioning unit 1.

[0063] In one embodiment, a water collecting valve is installed on the water collecting pipe 4, the water collecting branch pipe 6, and the water collecting branch pipe 81, and a water distributing valve is installed on the water distributing pipe 5, the water distributing branch pipe 7, and the water distributing branch pipe 91. The water collecting valve on the water collecting branch pipe 6 is located between the water collector 2 and the water collecting branch pipe 81 at the connection point on the water collecting branch pipe 6, and the water distributing valve on the water distributing branch pipe 7 is located between the water distributor 3 and the water distributing branch pipe 91 at the connection point on the water distributing branch pipe 7.

[0064] Specifically, as shown in the attached diagram. Figure 1 As shown, the water collection bypass pipe 8 and water collection pipe 4 actually converge into the main water collection pipe 10 and then connect to the inlet end of the air conditioning unit 1. The water distribution bypass pipe 9 and water distribution pipe 5 actually converge into the main water distribution pipe and then connect to the outlet end of the air conditioning unit 1. The opening and closing of each pipe is controlled by the corresponding valve. The type of valve can be selected according to the situation, such as an electric butterfly valve.

[0065] In one embodiment, the water collection bypass pipe 8 and the water collection pipe 4 converge at the water collection main pipe 10. The water collection main pipe 10 is connected to the water inlet of the air conditioning unit 1. A water pump is installed on the water collection main pipe 10, and each air conditioning unit 1 corresponds to one water pump, which is used to provide power for the circulation of the temperature control medium.

[0066] Example 3

[0067] An embodiment of the present invention provides an air conditioning control method, which includes the following steps:

[0068] S100: Obtain environmental parameters and / or setting parameters for each object area, and determine whether there are specific areas in the object area where the values ​​of the environmental parameters and / or setting parameters deviate from the overall level. The environmental parameters include at least temperature and humidity values, and the setting parameters include at least temperature values.

[0069] Specifically, environmental parameters can be the humidity or temperature of the target area, while setting parameters can be manually set temperatures. Taking humidity as an example, the humidity value may be the humidity under natural conditions in the target area, or it may be the humidity after using equipment such as humidifiers or dryers. When the humidity of one or more target areas is high or low, usually the maximum or minimum humidity value among all target areas, that is, deviating from the overall humidity level, it is judged as a specific area that needs to be independently temperature controlled, and the temperature needs to be independently lowered or raised.

[0070] Taking humidity as an example, the judgment criteria for deviation from the overall humidity level can be calculated based on the humidity data of all target areas. For example, by calculating the average and median humidity values, and analyzing the variance and mean difference, it can be determined whether the humidity of a certain target area deviates from the overall humidity level. Furthermore, a deviation range can be set to further assess whether independent control is needed. The specific calculation process for the above data can be found in existing solutions, and will not be elaborated upon in this invention.

[0071] In this embodiment, based on the accompanying drawings Figure 1 The present invention is illustrated by describing regions one through three, with region one having a higher humidity level that deviates from the overall level. Region one is a specific region.

[0072] S200: If a specific area exists, an independent control mode is activated for that specific area, while normal control mode is used for other object areas.

[0073] Independent control modes include:

[0074] S210: Connect the water collection branch pipe 6 of a specific area to the water inlet of any one or more target air conditioning units 1 in the air conditioning system, disconnect the water collection branch pipe 6 to the water collector 2 of the air conditioning system, and disconnect the water collector 2 to the water inlet of the target air conditioning unit 1.

[0075] S220: Connect the branch pipe 7 of a specific area to the outlet of the target air conditioning unit 1 directly, disconnect the branch pipe 7 to the water distributor 3 of the air conditioning system, and disconnect the water distributor 3 to the outlet of the target air conditioning unit 1.

[0076] Specifically, based on a preset or real-time correspondence, a unit is designated as the target air conditioning unit 1 in the central air conditioning system to independently control the temperature of zone 1. This embodiment uses the designation of unit 1 to independently control the temperature of zone 1. The water collection valve on the corresponding water collection branch pipe 81 and the water distribution valve on the corresponding water distribution branch pipe 91 of zone 1 are opened. This allows the water collection branch pipe 6 of zone 1 to connect to the water collection bypass pipe 8 of unit 1 via the water collection branch pipe 81, and then directly to the inlet of unit 1 via the main water collection pipe 10. Similarly, its water distribution branch pipe 7 can connect to the water distribution bypass pipe 9 of unit 1 via the water distribution branch pipe 91, and then directly to the outlet of unit 1 via the main water distribution pipe. The water collection pipe 4 and water distribution pipe 5 of unit 1, as well as the water collection valves and water distribution valves on the water collection branch pipe 6 and water distribution branch pipe 7 of zone 1, are closed. This isolates zone 1 from unit 1 in the central air conditioning system, allowing for independent control and targeted temperature control of zone 1. The piping structure is shown in the attached diagram. Figure 2 As shown.

[0077] Normal control modes include:

[0078] S230: Disconnect the direct connection between the water collection branch pipe 6 of the target area and the water inlet of all air conditioning units 1 in the air conditioning system; connect the water collection branch pipe 6 of the target area to the water collector 2 of the air conditioning system; and connect the water collector 2 to the water inlet of all other air conditioning units 1 except the target air conditioning unit 1.

[0079] S240: Disconnect the direct connection between the branch pipe 7 of the target area and the outlet of all air conditioning units 1 in the air conditioning system; connect the branch pipe 7 of the target area to the water distributor 3 of the air conditioning system; and connect the water distributor 3 to the outlet of all other air conditioning units 1 except the target air conditioning unit 1.

[0080] Specifically, as shown in the attached diagram. Figure 2 As shown, Zones 2 and 3 adopt the normal control mode. In the normal control mode, the opening and closing status of the valves on each pipeline is the opposite of that in the independent control mode. Please refer to the content of the aforementioned independent control mode, which will not be repeated here.

[0081] This embodiment is illustrated in the accompanying drawings. Figure 1 The technical solution of the present invention is illustrated by taking the independent control of region one as an example. The independent control of other single regions or the independent control of multiple regions can be described in the same way. Please refer to the content of this embodiment and embodiment 1, which will not be repeated here.

[0082] Example 4

[0083] An embodiment of the present invention provides an air conditioning control device, which includes:

[0084] The data processing module is used to acquire environmental parameters and / or setting parameters for each object region, and to determine whether there are specific areas in the object region where the values ​​of the environmental parameters and / or setting parameters deviate from the overall level; and

[0085] The pipeline control module is used to activate an independent control mode for a specific area when such an area exists, while using the normal control mode for other areas.

[0086] The independent control modes include:

[0087] Connect the water collection branch pipe 6 of a specific area to the water inlet of any one or more target air conditioning units 1 in the air conditioning system, disconnect the water collection branch pipe 6 to the water collector 2 of the air conditioning system, and disconnect the water collector 2 to the water inlet of the target air conditioning unit 1.

[0088] Connect the branch pipe 7 of the specific area to the outlet of the target air conditioning unit 1 directly, disconnect the branch pipe 7 to the water distributor 3 of the air conditioning system, and disconnect the water distributor 3 to the outlet of the target air conditioning unit 1.

[0089] Normal control modes include:

[0090] Disconnect the direct connection between the water collection branch pipe 6 of the target area and the water inlet of all air conditioning units 1 in the air conditioning system; connect the water collection branch pipe 6 of the target area to the water collector 2 of the air conditioning system; and connect the water collector 2 to the water inlet of all other air conditioning units 1 except the target air conditioning unit 1.

[0091] Disconnect the direct connection between the branch pipe 7 of the target area and the outlet of all air conditioning units 1 in the air conditioning system; connect the branch pipe 7 of the target area to the water distributor 3 of the air conditioning system; and connect the water distributor 3 to the outlet of all other air conditioning units 1 except the target air conditioning unit 1.

[0092] In the description of this invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0093] While the invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A central air conditioning system corresponding to multiple target areas, characterized in that, Includes water collectors, water distributors, and multiple air conditioning units; The inlet and outlet of the air conditioning unit are connected to the output of the water collector and the input of the water distributor via a water collection pipe and a water distribution pipe, respectively. The input of the water collector and the output of the water distributor are connected to the water collection branch pipe and the water distribution branch pipe of each of the target areas, respectively. Each air conditioning unit is further connected to a water collection bypass pipe and a water distribution bypass pipe at its inlet and outlet ends, respectively. The end of the water collection bypass pipe is connected to the water collection branch pipe of each target area through multiple parallel water collection branch pipes, and the end of the water distribution bypass pipe is connected to the water distribution branch pipe of each target area through multiple parallel water distribution branch pipes.

2. The central air conditioning system according to claim 1, characterized in that, The number of air conditioning units shall not be less than the number of target areas.

3. The central air conditioning system according to claim 1, characterized in that, A water collection valve is installed on the water collection pipe, the water collection branch pipe, and the water collection sub-branch pipe. A water distribution valve is installed on the water distribution pipe, the water distribution branch pipe, and the water distribution sub-branch pipe.

4. The central air conditioning system according to claim 3, characterized in that, The water collection valve on the water collection branch pipe is located between the water collector and the water collection branch pipe at the connection point on the water collection branch pipe, and the water distribution valve on the water distribution branch pipe is located between the water distributor and the water distribution branch pipe at the connection point on the water distribution branch pipe.

5. The central air conditioning system according to claim 1, characterized in that, The water collection bypass pipe and the water collection pipe merge into the water collection main pipe, which is connected to the water inlet of the air conditioning unit. A water pump is installed on the water collection main pipe.

6. The central air conditioning system according to claim 1, characterized in that, The water inlet and outlet of the air conditioning unit are the water inlet and outlet of the evaporator of the air conditioning unit.

7. An air conditioning control method, characterized in that, Includes the following steps: Obtain environmental parameters and / or setting parameters for each object region, and determine whether there are specific regions in the object region where the values ​​of the environmental parameters and / or setting parameters deviate from the overall level; If the specific region exists, an independent control mode is activated for the specific region, while the other object regions are controlled normally. The independent control mode includes: Connect the water collection branch pipe of the specific area to the water inlet of any one or more target air conditioning units in the air conditioning system, disconnect the water collection branch pipe to the water collector of the air conditioning system, and disconnect the water collector to the water inlet of the target air conditioning unit. Connect the branch pipe of the specific area to the outlet of the target air conditioning unit directly, disconnect the branch pipe to the water distributor of the air conditioning system, and disconnect the water distributor to the outlet of the target air conditioning unit.

8. The air conditioning control method according to claim 7, characterized in that, The normal control mode includes: Disconnect the direct connection between the water collection branch pipe of the target area and the water inlet of all air conditioning units in the air conditioning system; connect the water collection branch pipe of the target area to the water collector of the air conditioning system; and connect the water collector to the water inlet of all other air conditioning units except the target air conditioning unit. Disconnect the direct connection between the branch pipe of the target area and the outlet of all air conditioning units in the air conditioning system; connect the branch pipe of the target area to the water distributor of the air conditioning system; and connect the water distributor to the outlet of all other air conditioning units except the target air conditioning unit.

9. The air conditioning control method according to claim 7, characterized in that, The environmental parameters include at least temperature and humidity values, and the setting parameters include at least temperature values.

10. An air conditioning control device, characterized in that, include: The data processing module is used to acquire environmental parameters and / or setting parameters for each object region, and to determine whether there are specific areas in the object region where the values ​​of the environmental parameters and / or setting parameters deviate from the overall level; The pipeline control module is used to activate an independent control mode for the specific area when the specific area exists, and to use a normal control mode for other object areas. The independent control modes include: Connect the water collection branch pipe of the specific area to the water inlet of any one or more target air conditioning units in the air conditioning system, disconnect the water collection branch pipe to the water collector of the air conditioning system, and disconnect the water collector to the water inlet of the target air conditioning unit. Connect the branch pipe of the specific area to the outlet of the target air conditioning unit directly, disconnect the branch pipe to the water distributor of the air conditioning system, and disconnect the water distributor to the outlet of the target air conditioning unit.

Images