Control method and device for multi-split water cooling system, water cooling system and medium

Abstract

The invention relates to the technical field of refrigeration equipment, and discloses a control method for a multi-split water cooling system, which comprises the following steps: when the multi-split water cooling system operates in a combined mode, acquiring the current comfort level proportion and the capacity value of each heat exchange unit; determining a target newly increased capacity and a target mode according to the current comfort level proportion and a target comfort level proportion; according to the target newly-added capacity and the capacity value of each heat exchange unit, a target heat exchange unit is selected, and the target heat exchange unit is controlled to execute a target mode; wherein the combined mode comprises an air conditioning mode and a hot water mode combined operation mode, and the target mode comprises an air conditioning mode or a hot water mode. The operation modes of the multiple heat exchange units can be adjusted in time, so that the adjusted heat exchange unit combination can meet the requirement for the target comfort degree, and the self-adaptability of regulation and control of the multi-split water cooling system is improved. The invention further discloses a control device for the multi-split water cooling system, the water cooling system and a medium.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, for example, to a control method and device for a multi-split water cooling system, a water cooling system, and a medium. Background Art

[0002] At present, in a multi-split water cooling system, in order to meet the user's greater capacity requirements, multiple heat exchange units are connected in parallel to form a multi-split water cooling system. At the same time, all heat exchange units are connected to an outdoor unit system, and the outdoor unit system includes multiple outdoor units connected in parallel. Figure 1 As shown, the heat exchange units HU_1, HU_2, HU_3, HU_4...HU_N are connected in parallel to form a multi-split water cooling system, wherein HU_1 is the main heat exchange unit, and the other heat exchange units HU_2, HU_3, HU_4...HU_N are slave heat exchange units. All heat exchange units execute the same setting mode, share the outlet water temperature value of the main heat exchange unit, or adjust and control the water temperature according to the average value of the outlet water temperature values ​​of all heat exchange units. In the above multi-split water cooling system, all indoor units and all water heaters are connected to the same return water pipeline 10, and all indoor units and all water heaters are connected to the same outlet water pipeline 20. Among them, the outlet water pipeline 20 is equipped with a three-way valve 30, and the corresponding device can be selected from the selected devices as an indoor unit or a water heater by controlling the opening of the three-way valve 30. When the three-way valve 30 is closed, the multi-split water cooling system provides cold water or hot water to the above selected indoor unit to meet the cooling or heating needs of the selected indoor unit. When the three-way valve 30 is opened, the multi-split heat exchanger provides hot water to the water heater to meet the domestic hot water demand.

[0003] Based on the above multi-split water cooling system, the related art provides a control method for the multi-split water cooling system, which controls all heat exchange units to synchronously perform the same action, and the slave heat exchange units synchronously perform the same action according to the operating state of the main heat exchange unit. Specifically, when HU_1 is turned on, HU_3, HU_4...HU_N are also turned on synchronously.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] In the specific application process of the multi-split water cooling system, if the needs of multiple users are inconsistent, the multi-split water cooling system cannot take into account the different user needs. For example, in summer, the air conditioner has a cooling demand, and at the same time, the user has a hot water demand for bathing. The multi-split water cooling system is only equipped with a three-way valve on the water outlet pipe, and the three-way valve cannot be used to meet the cooling demand and the hot water demand at the same time. As a result, the multi-split water cooling system cannot adaptively control the heat exchange unit according to different user needs, affecting the user's comfort.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiments of the present disclosure provide a control method, device, water cooling system and medium for a multi-split water cooling system, so as to improve the adaptability of the multi-split water cooling system regulation and enhance the user comfort.

[0009] In some embodiments, the method includes: when the multi-split water cooling system operates in a combination mode, obtaining the current comfort ratio and the capacity value of each heat exchange unit; determining the target additional capacity and the target mode according to the current comfort ratio and the target comfort ratio; selecting the target heat exchange unit according to the target additional capacity and the capacity value of each heat exchange unit, and controlling the target heat exchange unit to execute the target mode; wherein the combination mode includes a mode in which an air-conditioning mode and a hot water mode are combined and operated, and the target mode includes an air-conditioning mode or a hot water mode.

[0010] In some embodiments, the device includes: a processor and a memory storing program instructions, and the processor is configured to execute the control method for a multi-split water cooling system as described above when running the program instructions.

[0011] In some embodiments, the multi-split water cooling system includes: N outdoor units, N is an integer greater than 1; N heat exchange units; M1 indoor units, M1 is an integer greater than 1; M2 water heaters, M2 is an integer greater than 1; an air conditioner return water pipeline connected to each heat exchange unit and to the M1 indoor units; a water heater return water pipeline connected to each heat exchange unit and to the M2 water heaters; an air conditioner outlet water pipeline connected to each heat exchange unit and to the M1 indoor units; a water heater outlet water pipeline connected to each heat exchange unit and to the M2 water heaters; N return water three-way valves, respectively provided between each heat exchange unit and the air conditioner; On the connecting pipeline of the return water pipeline, each return water three-way valve has a connecting port connected to the return water pipeline of the water heater; N outlet water three-way valves are respectively arranged on the connecting pipelines of each heat exchange unit and the air-conditioning outlet water pipeline, and each outlet water three-way valve has a connecting port connected to the outlet water pipeline of the water heater; and, as mentioned above, the control device for the multi-split water cooling system is electrically connected to the N return water three-way valves and the N outlet water three-way valves; wherein the N return water three-way valves and the N outlet water three-way valves can be opened or closed in a controlled manner to start or stop the supply of cold water to M1 indoor units, and / or to start or stop the supply of hot water to M2 water heaters.

[0012] In some embodiments, the storage medium stores program instructions, and when the program instructions are run, they execute the control method for the multi-split water cooling system as described above.

[0013] The control method, device, water cooling system and medium for a multi-split water cooling system provided by the embodiments of the present disclosure can achieve the following technical effects:

[0014] When the multi-split water cooling system operates in a combination mode, after the embodiment of the present disclosure obtains the current comfort ratio and the capacity value of each heat exchange unit, it determines the target additional capacity and the target mode according to the current comfort ratio and the target comfort ratio, so as to determine the additional capacity value required to update the current comfort ratio to the target comfort ratio and the operating mode required to implement the additional capacity value. The embodiment of the present disclosure then selects the target heat exchange unit in the multi-split water cooling system according to the target additional capacity and the capacity value of each heat exchange unit, and controls the target heat exchange unit to execute the target mode. In this way, the embodiment of the present disclosure can adjust the respective operating modes of multiple heat exchange units according to the target comfort ratio, so that the adjusted combination of heat exchange units can meet the target comfort requirements, thereby improving the adaptability of the multi-split water cooling system regulation and improving the user's comfort.

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

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

[0017] Figure 1 It is a system structure diagram of a multi-connected water cooling system provided by the relevant technology;

[0018] Figure 2 is a schematic diagram of the system structure of a multi-split water cooling system provided by an embodiment of the present disclosure;

[0019] Figure 3 is a schematic diagram of a control method for a multi-split water cooling system provided by an embodiment of the present disclosure;

[0020] Figure 4 is a schematic diagram of another control method for a multi-split water cooling system provided by an embodiment of the present disclosure;

[0021] Figure 5 is a schematic diagram of another control method for a multi-split water cooling system provided by an embodiment of the present disclosure;

[0022] Figure 6 is a schematic diagram of another control method for a multi-split water cooling system provided by an embodiment of the present disclosure;

[0023] Figure 7 It is a schematic diagram of a control device for a multi-split water cooling system provided in an embodiment of the present disclosure.

[0024] Reference numerals:

[0025] 100: air conditioning water return pipe; 101: air conditioning water outlet pipe;

[0026] 200: water heater return pipe; 201: water heater outlet pipe;

[0027] 300: return water three-way valve;

[0028] 400: water outlet three-way valve;

[0029] 500: processor; 501: memory;

[0030] 502: communication interface; 503: bus. DETAILED DESCRIPTION

[0031] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0032] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0033] Unless otherwise stated, the term "plurality" means two or more.

[0034] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0035] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0036] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0037] At present, in a multi-split water cooling system, in order to meet the user's greater capacity requirements, multiple heat exchange units are connected in parallel to form a multi-split water cooling system. At the same time, all heat exchange units are connected to an outdoor unit system, and the outdoor unit system includes multiple outdoor units connected in parallel. Figure 1As shown, the heat exchange units HU_1, HU_2, HU_3, HU_4...HU_N are connected in parallel to form a multi-split water cooling system, wherein HU_1 is the main heat exchange unit, and the other heat exchange units HU_2, HU_3, HU_4...HU_N are slave heat exchange units. All heat exchange units execute the same setting mode, share the outlet water temperature value of the main heat exchange unit, or adjust and control the water temperature according to the average value of the outlet water temperature values ​​of all heat exchange units. In the above multi-split water cooling system, all indoor units and all water heaters are connected to the same return water pipeline 10, and all indoor units and all water heaters are connected to the same outlet water pipeline 20. Among them, the outlet water pipeline 20 is equipped with a three-way valve 30, and the corresponding device can be selected from the selected devices as an indoor unit or a water heater by controlling the opening of the three-way valve 30. When the three-way valve 30 is closed, the multi-split water cooling system provides cold water or hot water to the above selected indoor unit to meet the cooling or heating needs of the selected indoor unit. When the three-way valve 30 is opened, the multi-split heat exchanger provides hot water to the water heater to meet the domestic hot water demand.

[0038] Based on the above multi-split water cooling system, the related art provides a control method for the multi-split water cooling system, which controls all heat exchange units to synchronously perform the same action, and the slave heat exchange units synchronously perform the same action according to the operating state of the main heat exchange unit. Specifically, when HU_1 is turned on, HU_3, HU_4...HU_N are also turned on synchronously.

[0039] In the specific application process of the multi-split water cooling system, if the needs of multiple users are inconsistent, the multi-split water cooling system cannot take into account the different user needs. For example, in summer, the air conditioner has a cooling demand, and at the same time, the user has a hot water demand for bathing. The multi-split water cooling system is only equipped with a three-way valve on the water outlet pipe, and the three-way valve cannot be used to meet the cooling demand and the hot water demand at the same time. As a result, the multi-split water cooling system cannot adaptively control the heat exchange unit according to different user needs, affecting the user's comfort.

[0040] Combination Figure 2 As shown, an embodiment of the present disclosure provides a multi-split water cooling system, including N outdoor units, N heat exchange units (HU_1, HU_2, ..., HU_N), M1 indoor units, M2 water heaters, an air-conditioning return pipe 100, a water heater return pipe 200, an air-conditioning outlet pipe 101, a water heater outlet pipe 201, N return three-way valves 300 and N outlet three-way valves 400.

[0041] The air conditioning water return pipeline 100 is connected to each heat exchange unit and is connected to M1 indoor units.

[0042] The water heater return pipe 200 is connected to each heat exchange unit and is connected to M2 water heaters.

[0043] The air conditioning water outlet pipe 101 is connected to each heat exchange unit and to M1 indoor units.

[0044] The water heater outlet pipe 201 is connected to each heat exchange unit and is connected to M2 water heaters.

[0045] N water return three-way valves 300 are respectively arranged on the connecting pipeline between each heat exchange unit and the air conditioner water return pipeline 100 , and each water return three-way valve 300 has a connecting port connected to the water heater water return pipeline 200 .

[0046] N water outlet three-way valves 400 are respectively arranged on the connecting pipeline between each heat exchange unit and the air conditioner water outlet pipeline 101 , and each water outlet three-way valve 400 has a connecting port connected to the water heater water outlet pipeline 201 .

[0047] The N return water three-way valves 300 and the N outlet water three-way valves 400 can be controlled to open or close to start or stop supplying cold water to the M1 indoor units, and / or to start or stop supplying hot water to the M2 water heaters. N, M1 and M2 are integers greater than 1.

[0048] The multi-split water cooling system provided by the embodiment of the present disclosure is adopted. In the embodiment of the present disclosure, N return water three-way valves are respectively arranged on the connecting pipeline between each heat exchange unit and the air conditioner return water pipeline, and each return water three-way valve has a connection port connected to the water heater return water pipeline. At the same time, N outlet water three-way valves are respectively arranged on the connecting pipeline between each heat exchange unit and the air conditioner outlet water pipeline, and each outlet water three-way valve has a connection port connected to the water heater outlet water pipeline. In this way, the embodiment of the present disclosure can realize the start and stop of the cold water supply of multiple indoor units and the start and stop of the hot water supply of multiple water heaters by adjusting the respective opening states of the N return water three-way valves and / or the N outlet water three-way valves, thereby meeting different user needs.

[0049] Based on the above multi-split water cooling system, combined with Figure 3 As shown, the embodiment of the present disclosure provides a control method for a multi-split water cooling system, comprising:

[0050] S01, when the multi-split water cooling system operates in a combined mode, the processor obtains the current comfort ratio and the capacity value of each heat exchange unit.

[0051] S02: The processor determines the target additional capacity and the target mode according to the current comfort ratio and the target comfort ratio.

[0052] S03, the processor selects a target heat exchange unit according to the target additional capacity and the capacity value of each heat exchange unit, and controls the target heat exchange unit to execute the target mode.

[0053] The combination mode includes a mode in which the air conditioning mode and the hot water mode are combined, and the target mode includes the air conditioning mode or the hot water mode. In the combination mode, some heat exchange units operate in the air conditioning mode and some or all of the other heat exchange units operate in the hot water mode. The other heat exchange units refer to other heat exchange units except the heat exchange units operating in the air conditioning mode. In the target mode, all heat exchange units in operation operate in the air conditioning mode, or all heat exchange units in operation operate in the hot water mode.

[0054] Using the control method for a multi-split water cooling system provided by the embodiment of the present disclosure, when the multi-split water cooling system operates in a combination mode, the embodiment of the present disclosure obtains the current comfort ratio and the capacity value of each heat exchange unit, and then determines the target additional capacity and the target mode according to the current comfort ratio and the target comfort ratio, so as to determine the additional capacity value required to update the current comfort ratio to the target comfort ratio and the operating mode required to implement the additional capacity value. The embodiment of the present disclosure then selects the target heat exchange unit in the multi-split water cooling system according to the target additional capacity and the capacity value of each heat exchange unit, and controls the target heat exchange unit to execute the target mode. In this way, the embodiment of the present disclosure can adjust the respective operating modes of multiple heat exchange units according to the target comfort ratio, so that the adjusted heat exchange unit combination can meet the target comfort requirements, thereby improving the adaptability and practicality of the multi-split water cooling system control and improving the user's comfort.

[0055] Optionally, the processor obtains the current comfort level ratio, including:

[0056] Processor Computing Comfort air =1-[|T air -T set1 | / T set1 ].

[0057] Processor Computing Comfort hot =1-[|T set2 -T hot | / T set2 ], T set2 >T hot .

[0058] Processor Calculation Rate cur =Comfort air / (Comfort air +Comfort hot ).

[0059] Among them, T air , T set1They represent the actual average water temperature when the heat exchange unit is running in air conditioning mode and the water temperature threshold when the heat exchange unit is running in air conditioning mode, Comfort air Indicates the air conditioning comfort level. The air conditioning modes include heating mode or cooling mode.

[0060] T hot 、T set2 They represent the actual average water temperature when the heat exchange unit is running in hot water mode and the water temperature threshold when the heat exchange unit is running in hot water mode. hot Indicates hot water comfort.

[0061] Rate cur Indicates the current comfort level.

[0062] In this way, the embodiment of the present disclosure compares the difference between the actual water temperature average value and the water temperature threshold value when the current heat exchange unit is running in the air conditioning mode with the water temperature threshold value to calculate the air conditioning comfort. The embodiment of the present disclosure compares the difference between the actual water temperature average value and the water temperature threshold value when the current heat exchange unit is running in the hot water mode with the water temperature threshold value to calculate the hot water comfort.

[0063] In this way, the embodiment of the present disclosure can calculate and generate the air conditioning comfort according to the ratio of the absolute value of the difference between the actual water temperature average value of the current heat exchange unit in the heating mode or cooling mode and the water temperature threshold value in the heating mode or cooling mode to the above-mentioned water temperature threshold value. At the same time, when the water temperature threshold value in the hot water mode of the embodiment of the present disclosure is higher than the actual water temperature average value when the current heat exchange unit is operating in the hot water mode, the hot water comfort is calculated and generated by using the above-mentioned actual water temperature average value and the water temperature threshold value in the hot water mode as a ratio. On this basis, the embodiment of the present disclosure compares the air conditioning comfort with the sum of the air conditioning comfort and the hot water comfort to accurately calculate the current comfort ratio. This is conducive to improving the accuracy of the current comfort ratio calculation.

[0064] It should be noted that when the heat exchange unit is currently operating in heating mode, T air <T set1 , T set1 Indicates the water temperature threshold when the heat exchange unit is currently operating in heating mode.

[0065] When the heat exchange unit is currently operating in cooling mode, T air >T set1 , T set1 Indicates the water temperature threshold when the heat exchange unit is currently operating in cooling mode.

[0066] It can be understood that when the heat exchange unit is currently operating in hot water mode and T set2 ≤T hot In the case of Comforthot = 1. In this way, when the current heat exchange unit operates in the hot water mode and T set2 ≤ T hot , it indicates that the average actual water temperature of the current heat exchange unit in the hot water mode is equal to or higher than the water temperature threshold in the hot water mode. At this time, the hot water comfort level reaches the upper limit value of 1. Therefore, when the current heat exchange unit operates in the hot water mode and T set2 ≤ T hot , set the hot water comfort level Comfort hot to 1.

[0067] Optionally, the processor determines the target new capacity and the target mode according to the current comfort level ratio and the target comfort level ratio, including:

[0068] When Rate cur - Rate set < Thre1, the processor determines that the target new capacity CAP addair is CAP sumair × (Rate set - Rate cur ), and determines that the target mode is the air conditioning mode.

[0069] When Rate cur - Rate set > Thre2, the processor determines that the target new capacity CAP addhot is CAP sumhot × (Rate cur - Rate set ), and determines that the target mode is the hot water mode.

[0070] Among them, CAP sumair represents the total capacity of all heat exchange units operating in the air conditioning mode, CAP sumhot represents the total capacity of all heat exchange units operating in the hot water mode, Rate cur represents the current comfort level ratio, Rate set represents the target comfort level ratio, and Thre1 and Thre2 respectively represent the first ratio threshold and the second ratio threshold, and Thre1 < 0 < Thre2.

[0071] In this way, when Rate cur - Rate setWhen Thre1, it indicates that the current comfort level ratio value is small, the air-conditioning comfort level is small, and there is a need to increase the number of heat exchange units operating in the air-conditioning mode. For this purpose, in the embodiments of the present disclosure, the difference between the current comfort level ratio and the target comfort level ratio is multiplied by the total capacity of all heat exchange units operating in the air-conditioning mode to determine the capacity value that needs to be newly added for operation in the air-conditioning mode. And when Rate cur -Rate set >Thre2, it indicates that the current comfort level ratio value is large, the hot water comfort level is small, and there is a need to increase the number of heat exchange units operating in the hot water mode. For this purpose, in the embodiments of the present disclosure, the difference between the current comfort level ratio and the target comfort level ratio is multiplied by the total capacity of all heat exchange units operating in the hot water mode to determine the capacity value that needs to be newly added for operation in the hot water mode. In this way, the embodiments of the present disclosure can adaptively adjust the operation mode of the heat exchange units according to the capacity values that need to be newly added for operation in the air-conditioning mode / hot water mode, so that the adjusted combination of heat exchange units can meet the target comfort requirements, improve the self-adaptability and practicality of the multi-split air-cooled system control, and improve the user's comfort level.

[0072] Optionally, the specific value of Thre1 can be determined according to specific requirements. As an example, Thre1 is -10%, or Thre1 is -20%. It can be understood that Thre1 can also be other values less than zero. The specific value of Thre2 can also be determined according to specific requirements. As an example, Thre2 is 10%, or Thre2 is 20%. It can be understood that Thre2 can also be other values greater than zero.

[0073] Optionally, the processor determines the target new capacity and the target mode according to the current comfort level ratio and the target comfort level ratio, including:

[0074] When Rate cur -Rate set <Thre1, the processor determines that the target new capacity CAP addair is CAP sumair ×(Rate set -Rate cur ), and determines that the target mode is the air-conditioning mode.

[0075] When Rate cur -Rate set >Thre2, the processor determines that the target new capacity CAP addhot is CAP sumhot ×(Rate cur -Rate set ), and determines that the target mode is the hot water mode.

[0076] When Thre1≤Rate cur -Rate set When ≤Thre2, the operation mode of each heat exchange unit remains unchanged.

[0077] Among them, CAP sumair Represents the total capacity of all heat exchange units operating in air conditioning mode, CAP sumhot Indicates the total capacity of all heat exchange units operating in hot water mode, Rate cur 、Rate set Respectively represent the current comfort ratio and the target comfort ratio, Thre1 and Thre2 represent the first ratio threshold and the second ratio threshold, and Thre1<0 <Thre2。

[0078] Thus, when Thre1≤Rate cur -Rate set ≤Thre2, it indicates that the current comfort ratio is within a reasonable range, and there is no need to adjust the operation mode of each heat exchange unit. cur -Rate set When ≤Thre2, the operation mode of each heat exchange unit remains unchanged.

[0079] Optionally, combined Figure 4 As shown, the processor selects a target heat exchange unit according to the target additional capacity and the capacity value of each heat exchange unit, and controls the target heat exchange unit to execute the target mode, including:

[0080] S11, the processor determines an alternative heat exchange unit that operates in the first mode, and calculates a capacity value of the alternative heat exchange unit.

[0081] S12, the processor selects the candidate heat exchange unit with the smallest difference from the target additional capacity as the target heat exchange unit.

[0082] S13, the processor controls the target heat exchange unit to execute the second mode.

[0083] The first mode is the air-conditioning mode and the second mode is the hot water mode, or the first mode is the hot water mode and the second mode is the air-conditioning mode.

[0084] In this way, after determining the target additional capacity and the target mode, the implementation of the present disclosure first determines the alternative heat exchange unit that runs the first mode, and calculates the capacity value of the alternative heat exchange unit. Then, the alternative heat exchange unit with the smallest difference with the target additional capacity is selected as the target heat exchange unit. Finally, the target heat exchange unit is controlled to execute the second mode. In this way, the embodiment of the present disclosure can accurately regulate and combine the heat exchange units according to the calculated target additional capacity and target mode, so that the adjusted heat exchange unit combination can meet the target comfort requirements, improve the adaptability of the multi-split water cooling system regulation, and improve the user's comfort.

[0085] Optionally, combined Figure 5 As shown, the processor determines that the multi-split water cooling system operates in combined mode in the following manner:

[0086] S21, the processor obtains the total capacity of all heat exchange units and the air conditioning benchmark ratio.

[0087] S22, the processor determines an initial heat exchange unit to be operated in the air conditioning mode according to the total capacity and the air conditioning reference ratio.

[0088] S23, the processor controls the initial heat exchange unit to operate in air conditioning mode, and controls other heat exchange units to operate in hot water mode.

[0089] In this way, after the embodiment of the present disclosure obtains the total capacity and the air-conditioning benchmark ratio of all heat exchange units, the initial heat exchange unit operating in the air-conditioning mode is determined according to the total capacity and the air-conditioning benchmark ratio. The heat exchange unit operating in the air-conditioning mode required to meet the air-conditioning benchmark ratio requirement is accurately obtained. The embodiment of the present disclosure then controls the initial heat exchange unit to operate in the air-conditioning mode, and controls other heat exchange units to operate in the hot water mode. In this way, the embodiment of the present disclosure can accurately calculate the initial heat exchange unit in the air-conditioning mode and the heat exchange unit in the hot water mode according to the specific air-conditioning benchmark ratio requirements and the total capacity of all heat exchange units, realize the precise control of the heat exchange unit combination, improve the adaptability and practicality of the multi-split water cooling system control, and improve the user's comfort.

[0090] Optionally, combined Figure 1 As shown, in actual application, the processor controls the initial heat exchange unit to operate in air conditioning mode, and controls other heat exchange units to operate in hot water mode, including:

[0091] The processor controls the opening of the return water three-way valve on the air-conditioning return water pipe corresponding to the initial heat exchange unit, and controls the opening of the outlet water three-way valve on the air-conditioning outlet water pipe corresponding to the initial heat exchange unit to control the opening of the corresponding indoor unit to realize the air-conditioning mode.

[0092] At the same time, the processor determines the return three-way valves corresponding to other heat exchange units, and then controls the connection ports with the return three-way valves to control the corresponding water heaters to start and realize the hot water mode.

[0093] Optionally, combined Figure 6 As shown, the processor determines the initial heat exchange unit to be operated in the air conditioning mode according to the total capacity and the air conditioning reference ratio, including:

[0094] S31, the processor will total capacity CAP SUM The product of the air conditioning base ratio Rate0 is used as the reference capacity value HP air0 .

[0095] S32: The processor selects a heat exchange unit that meets the initial capacity condition as an initial heat exchange unit.

[0096] Among them, the initial capacity condition is: HUCAP i ≤HP air0 , HUCAP i is the capacity value of the i-th heat exchange unit.

[0097] In this way, the air conditioning comfort ratio value corresponding to the regulated heat exchange unit combination is adapted to the air conditioning reference ratio Rate0, which is beneficial to improving the adaptability of the multi-split water cooling system regulation.

[0098] It should be noted that the processor selection meets HUCAP i ≤HP air0 The heat exchange unit is used as the initial heat exchange unit, and further includes: when the number of heat exchange units satisfying the initial capacity condition is greater than 1, select |HUCAP i -HP air0 |The smallest heat exchange unit is used as the initial heat exchange unit. In this way, the air conditioning comfort ratio value corresponding to the regulated heat exchange unit combination can be as close as possible to the air conditioning benchmark ratio Rate0, thereby improving the accuracy of heat exchange unit combination regulation.

[0099] In addition, the processor selection meets HUCAP i ≤HP air0 The heat exchange unit is used as the initial heat exchange unit, and further includes: when the number of heat exchange units satisfying the initial capacity condition is greater than 1, select |HUCAP i -HP air0 The second smallest heat exchange unit is used as the initial heat exchange unit. The embodiment of the present disclosure does not make any specific limitation on this. It can be understood that the processor selects the heat exchange unit that meets HUCAP i ≤HP air0When the heat exchange unit of HUCAP is used as the initial heat exchange unit, if the number of heat exchange units that meet the initial capacity condition is greater than 1, the processor can select the heat exchange units that meet the HUCAP condition. i ≤HP air0 Any heat exchange unit in the above table is used as the initial heat exchange unit. The selected heat exchange unit is the same as the HP air0 The smaller the difference is, the closer the air conditioning comfort ratio value corresponding to the adjusted heat exchange unit combination is to the air conditioning benchmark ratio. i =HP air0 , the air conditioning comfort ratio value corresponding to the adjusted heat exchange unit combination is equal to the air conditioning benchmark ratio.

[0100] In a specific embodiment, the multi-split water cooling system is configured with five heat exchange units, namely HU_1, HU_2, HU_3, HU_4, and HU_5. The capacity values ​​of the five heat exchange units are 2HP (Horsepower), 3HP, 5HP, 4HP, and 1HP respectively. Rate0 is 30%.

[0101] The processor determines that the multi-split water cooling system is operating in combined mode in the following manner:

[0102] Step S101: The processor obtains the total capacity CAP of all heat exchange units. SUM And the air conditioning base ratio Rate0.

[0103] Among them, CAP SUM =ΣHUCAP i , i=1,2,...,N. HUCAP i is the capacity value of the i-th heat exchange unit. CAP is obtained by calculation SUM =15HP.

[0104] Step S102: The processor converts the total capacity CAP SUM The product of the air conditioning base ratio Rate0 is used as the reference capacity value HP air0 . That is HP air0 =CAP SUM ×Rate0. HP is calculated air0 =4.5HP.

[0105] Step S103: The processor selects a sum ≤HP air0 As the initial heat exchange unit, the processor selects the heat exchange unit HU_4 as the initial heat exchange unit because the capacity value of the heat exchange unit HU_4, 4.5HP, is closest.

[0106] In step S104, the processor controls the three-way valve on the air-conditioning water return pipe corresponding to the heat exchange unit HU_4 to open, and controls the water outlet three-way valve on the air-conditioning water outlet pipe corresponding to the heat exchange unit HU_4 to open, so as to control the operation of the air-conditioning mode. At the same time, the processor determines the return water three-way valves corresponding to HU_1, HU_2, HU_3 and HU_5, and then controls the connection ports of the above four return water three-way valves to be connected, so as to control the operation of the hot water mode.

[0107] Combination Figure 7 As shown, an embodiment of the present disclosure provides a control device for a multi-split water cooling system, including a processor (processor) 500 and a memory (memory) 501. Optionally, the device may also include a communication interface (Communication Interface) 502 and a bus 503. Among them, the processor 500, the communication interface 502, and the memory 501 can communicate with each other through the bus 503. The communication interface 502 can be used for information transmission. The processor 500 can call the logic instructions in the memory 501 to execute the control method for the multi-split water cooling system of the above embodiment.

[0108] In addition, the logic instructions in the memory 501 described above can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0109] The memory 501 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 500 executes functional applications and data processing by running the program instructions / modules stored in the memory 501, that is, implements the control method for the multi-split water cooling system in the above embodiment.

[0110] The memory 501 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 501 may include a high-speed random access memory and may also include a non-volatile memory.

[0111] Combination Figure 2As shown, the embodiment of the present disclosure also provides a multi-split water cooling system, including N outdoor units, N heat exchange units (HU_1, HU_2, ..., HU_N), M1 indoor units, M2 water heaters, an air conditioner return water pipeline 100, a water heater return water pipeline 200, an air conditioner outlet water pipeline 101, a water heater outlet water pipeline 201, N return water three-way valves 300, N outlet water three-way valves 400, and a control device for a multi-split water cooling system as described above. The air conditioner return water pipeline 100 is connected to each heat exchange unit and connected to the M1 indoor units. The water heater return water pipeline 200 is connected to each heat exchange unit and connected to the M2 water heaters. The air conditioner outlet water pipeline 101 is connected to each heat exchange unit and connected to the M1 indoor units. The water heater outlet water pipeline 201 is connected to each heat exchange unit and connected to the M2 water heaters. N return water three-way valves 300 are respectively arranged on the connection pipeline between each heat exchange unit and the air conditioner return water pipeline 100, and each return water three-way valve 300 has a connection port connected to the water heater return water pipeline 200. N outlet water three-way valves 400 are respectively arranged on the connection pipeline between each heat exchange unit and the air conditioner outlet water pipeline 101, and each outlet water three-way valve 400 has a connection port connected to the water heater outlet water pipeline 201. The control device for the multi-split water cooling system is electrically connected to the N return water three-way valves 300 and the N outlet water three-way valves 400.

[0112] The N return water three-way valves 300 and the N outlet water three-way valves 400 can be controlled to open or close to start or stop supplying cold water to the M1 indoor units, and / or to start or stop supplying hot water to the M2 water heaters. N, M1 and M2 are integers greater than 1.

[0113] The multi-split water cooling system provided by the embodiment of the present disclosure is adopted, and N return water three-way valves are respectively arranged on the connecting pipeline between each heat exchange unit and the return water pipeline of the air conditioner, and each return water three-way valve has a connection port connected to the return water pipeline of the water heater. At the same time, N outlet water three-way valves are respectively arranged on the connecting pipeline between each heat exchange unit and the outlet water pipeline of the air conditioner, and each outlet water three-way valve has a connection port connected to the outlet water pipeline of the water heater. In this way, the embodiment of the present disclosure can realize the start and stop of the cold water supply of multiple indoor units and the start and stop of the hot water supply of multiple water heaters by adjusting the respective opening states of the N return water three-way valves and / or the N outlet water three-way valves, thereby meeting different user needs.

[0114] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the control method for a multi-split water cooling system.

[0115] The computer-readable storage medium mentioned above may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0116] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transient storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes, or a transient storage medium.

[0117] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0118] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0119] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0120] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A control method for a multi-split water cooling system, characterized in that: include: When the multi-split water cooling system operates in combined mode, obtain the current comfort ratio and the capacity value of each heat exchange unit; Determine the target additional capacity and target mode based on the current comfort ratio and the target comfort ratio; Select a target heat exchange unit according to the target additional capacity and the capacity value of each heat exchange unit, and control the target heat exchange unit to execute the target mode; The combination mode includes a mode in which the air-conditioning mode and the hot water mode are operated in combination, and the target mode includes the air-conditioning mode or the hot water mode.

2. The method according to claim 1, characterized in that The obtaining of the current comfort level ratio includes: Calculate Comfort air =1-[|T air -T set1 | / T set ]; Calculate Comfort hot =1-[|T set2 -T hot | / T set2 ], T set2 >T hot ; Calculate Rate cur =Comfort air / (Comfort air +Comfort hot ); Among them, T air , T set1 They represent the actual average water temperature when the heat exchange unit is running in air conditioning mode and the water temperature threshold when the heat exchange unit is running in air conditioning mode, Comfort air Indicates the air conditioning comfort level. The air conditioning mode includes heating mode or cooling mode. T hot , T set2 They represent the actual average water temperature when the heat exchange unit is running in hot water mode and the water temperature threshold when the heat exchange unit is running in hot water mode. hot Indicates hot water comfort level; Rate cur Indicates the current comfort level.

3. The method according to claim 2, characterized in that Determining the target additional capacity and the target mode according to the current comfort ratio and the target comfort ratio includes: At Rate cur -Rate set <When Thre1, determine the target new capacity CAP addair Be CAP sumair ×(Rate set -Rate cur ), and determine the target mode as the air-conditioning mode; In Rate cur -Rate set >Thre2, determine the target additional capacity CAP addhot CAP sumhot ×(Rate curt -Rate set ), and determining that the target mode is a hot water mode; Among them, CAP sumair Represents the total capacity of all heat exchange units operating in air conditioning mode, CAP sumhot Indicates the total capacity of all heat exchange units operating in hot water mode, Rate cur Indicates the current comfort ratio, Rate set represents the target comfort ratio, Thre1 and Thre2 represent the first ratio threshold and the second ratio threshold respectively, and Thre1<0 <Thre2。 4. The method according to claim 3, characterized in that The step of selecting a target heat exchange unit according to the target additional capacity and the capacity value of each heat exchange unit, and controlling the target heat exchange unit to execute the target mode includes: Determine an alternative heat exchange unit for operating in the first mode, and calculate a capacity value of the alternative heat exchange unit; Selecting the candidate heat exchange unit with the smallest difference from the target additional capacity as the target heat exchange unit; Controlling the target heat exchange unit to execute the second mode; Wherein, the first mode is air conditioning mode and the second mode is hot water mode, or, The first mode is a hot water mode and the second mode is an air conditioning mode.

5. The method according to claim 3, characterized in that: The determining of the target additional capacity and the target mode according to the current comfort ratio and the target comfort ratio also includes: When Thre1≤Rate cur -Rate set When ≤Thre2, the operation mode of each heat exchange unit remains unchanged.

6. The method according to any one of claims 1 to 5, characterized in that: Determine whether the multi-split water cooling system is running in combined mode as follows: Obtain the total capacity of all heat exchange units and the air conditioning benchmark ratio; Determine the initial heat exchange unit to be operated in air conditioning mode based on the total capacity and the air conditioning benchmark ratio; The initial heat exchange unit is controlled to operate in air conditioning mode, and the other heat exchange units are controlled to operate in hot water mode.

7. The method according to claim 6, characterized in that The step of determining the initial heat exchange unit to be operated in the air conditioning mode according to the total capacity and the air conditioning reference ratio comprises: The total capacity CAP SUM The product of the air conditioning base ratio Rate0 is used as the reference capacity value HP air0 ; Selecting a heat exchange unit that meets the initial capacity condition as an initial heat exchange unit; Among them, the initial capacity condition is: HUCAP i ≤HP air0 , HUCAP i is the capacity value of the i-th heat exchange unit.

8. A control device for a multi-split water cooling system, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the control method for a multi-split water cooling system according to any one of claims 1 to 7 when running the program instructions.

9. A multi-connected water cooling system, characterized in that: include: N outdoor units, where N is an integer greater than 1; N heat exchange units; M1 indoor units, where M1 is an integer greater than 1; M2 water heaters, where M2 is an integer greater than 1; The air conditioning water return pipeline is connected to each heat exchange unit and to M1 indoor units; The water heater return pipe is connected to each heat exchange unit and connected to M2 water heaters; The air conditioning water outlet pipeline is connected to each heat exchange unit and connected to M1 indoor units; The water outlet pipe of the water heater is connected to each heat exchange unit and is connected to M2 water heaters; N water return three-way valves are respectively arranged on the connection pipeline between each heat exchange unit and the air conditioner water return pipeline, and each water return three-way valve has a connection port connected to the water return pipeline of the water heater; N water outlet three-way valves are respectively arranged on the connecting pipeline between each heat exchange unit and the air conditioner water outlet pipeline, and each water outlet three-way valve has a connecting port connected to the water outlet pipeline of the water heater; and The control device for a multi-split water cooling system according to claim 8, electrically connected to N return three-way valves and N outlet three-way valves; Among them, N return water three-way valves and N outlet water three-way valves can be opened or closed in a controlled manner to start or stop supplying cold water to M1 indoor units, and / or to start or stop supplying hot water to M2 water heaters.

10. A storage medium storing program instructions, characterized in that: When the program instructions are executed, the control method for a multi-split water cooling system as described in any one of claims 1 to 7 is executed.

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