Air conditioner refrigeration control method and air conditioner system

Abstract

The present application relates to the air conditioning technical field, especially to a kind of air conditioner refrigeration control method and air conditioning system.The air conditioner refrigeration control method includes the following steps: starting any and above refrigeration heating module, the temperature value Tx in the current state in each corresponding room according to the temperature value T0 of user setting value detected obtains the temperature difference ΔTx in each corresponding room in the current state, according to the relationship between ΔTx and preset value S determine the refrigeration mode required by each corresponding room, S is the preset value in air conditioning system;Start compressor, according to the data information in the calling refrigeration heating module and the current outdoor temperature value T 外 The total energy required by the compressor is determined, so that different refrigeration modes are adopted according to different situations, and the corresponding compressor energy requirement is provided, which can balance the refrigeration efficiency and the blowing speed, and improve the user comfort.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technical field, and particularly to an air conditioner refrigeration control method and an air conditioner system. BACKGROUND

[0002] With the improvement of living standards, air conditioners gradually become necessities of life, and comfort has become the object of people's attention. In the process of using at home, people pay more attention to the noise, refrigeration rate, energy saving and other issues of air conditioning units.

[0003] At present, there are mainly two ways of air conditioning refrigeration: one is to use an evaporator to refrigerate, and heat exchange is carried out on the evaporator. The cold air is sent to each corner of the room by increasing air convection through a fan. The advantage is that the refrigeration speed is fast, but there are problems such as high noise and poor comfort. The second is to use water radiant heating to refrigerate. The advantage is that the noise is small, but there are problems such as slow refrigeration rate, easy condensation, and uneven temperature distribution.

[0004] Therefore, there is an urgent need for an air conditioner refrigeration control method to solve the above problems. SUMMARY

[0005] The first object of the present application is to provide an air conditioner refrigeration control method which can reduce the wind speed and improve user comfort while ensuring the refrigeration efficiency.

[0006] The second object of the present application is to provide an air conditioner system which can execute the above-mentioned air conditioner refrigeration control method, and can reduce the wind speed and improve user comfort while ensuring the refrigeration efficiency.

[0007] To achieve the above object, the following technical scheme is provided:

[0008] In a first aspect, an air conditioner refrigeration control method is provided, which is realized based on an air conditioner system including a compressor and at least one refrigeration and heating module. The air conditioner refrigeration control method includes the following steps:

[0009] Determining the required refrigeration mode of the room: starting any one or more refrigeration and heating modules, obtaining the temperature difference △Tx in each corresponding room in the current state according to the detected temperature value Tx and the user set value T0 in each corresponding room in the current state, and determining the required refrigeration mode of each corresponding room according to the relationship between △Tx and a preset value S, wherein S is a preset value in the air conditioner system;

[0010] Determining the total energy required for the output of the compressor: starting the compressor, and determining the total energy required for the output of the compressor according to the data information in the called refrigeration and heating module and the detected outdoor temperature value T 外 Determining the total energy required for the output of the compressor.

[0011] As an alternative to the air conditioning refrigeration control method, when starting any of the refrigeration and heating modules, immediately detect the temperature value Tx in each corresponding room under the current state and determine the required refrigeration mode of the corresponding room; every △t1 subsequently re-detects the temperature value Txn in each corresponding room under the current state and determines the required refrigeration mode of the corresponding room.

[0012] As an alternative to the air conditioning refrigeration control method, after the compressor is started and runs for t, every △t2 re-calls the data information in the refrigeration and heating module and detects the outdoor temperature T 外n .

[0013] As an alternative to the air conditioning refrigeration control method, the preset value S includes the relationship of the first set value S1, the second set value S2, and the third set value S3, wherein S1, S2, and S3 satisfy: S1 < 0 < S2 < S3.

[0014] If △T ≥ S3, open the air side module and the water side module in the room, and the execution energy requirement of the air side module is P1;

[0015] If S2 ≤ △T < S3, open the air side module and the water side module in the room, and the execution energy requirement of the air side module is P2, and P2 < P1;

[0016] If S1 ≤ △T < S2, close the air side module in the room and open the water side module in the room;

[0017] If △T < S1, close the air side module and the water side module in the room.

[0018] As an alternative to the air conditioning refrigeration control method, when the water side module needs to be opened, the water supply temperature Tw of the water side module satisfies: Td-2 ≤ Tw ≤ Td+1; wherein the determination method of Td is:

[0019] According to the detected temperature value Tx and humidity value Hx in each corresponding room under the current state, calculate the alternative dew point temperature Tdx in each corresponding room; when the number of alternative dew point temperatures Tdx is one, determine the alternative dew point temperature Tdx as Td; when the number of alternative dew point temperatures Tdx is greater than one, determine the maximum value of each of the alternative dew point temperatures Tdx as Td.

[0020] As an alternative to the air conditioning refrigeration control method, when the water side module needs to be opened, the water supply temperature Tw of the water side module also satisfies: 16℃ ≤ Tw.

[0021] As an alternative to the air conditioning refrigeration control method, the total energy requirement required by the compressor = the air side energy requirement of the air side module + the water side energy requirement of the water side module.

[0022] As an alternative of the air conditioner refrigeration control method, the wind side energy demand = ∑ corresponding room indoor unit standard capacity * X1; the water side energy demand = ∑ corresponding room indoor unit standard capacity * X2 * Y, wherein X1, X2 are determined by △T in the calling refrigeration and heating module, Y is the outdoor temperature value T in the current state detected when the data information in the calling refrigeration and heating module is called 外 determined.

[0023] As an alternative of the air conditioner refrigeration control method, the range of S1 is -3℃ ≤ S1 < 0℃.

[0024] As an alternative of the air conditioner refrigeration control method, the range of S2 is 0 < S2 < 2℃.

[0025] As an alternative of the air conditioner refrigeration control method, the range of S3 is 2℃ ≤ S3 < 5℃.

[0026] As an alternative of the air conditioner refrigeration control method, the range of △t1 is 5min ≤ △t1 < 40min.

[0027] As an alternative of the air conditioner refrigeration control method, the range of t is 5min ≤ t < 40min.

[0028] As an alternative of the air conditioner refrigeration control method, the range of △t2 is 1min ≤ △t2 < 15min.

[0029] 15min.

[0030] As an alternative of the air conditioner refrigeration control method, △t2 < △t1, △t2 < t.

[0031] In a second aspect, an air conditioner system is provided, comprising a controller configured to execute the air conditioner refrigeration control method according to any one of the above aspects, and further comprising:

[0032] a compressor;

[0033] an outdoor heat exchanger, an inlet end of which is connected to the compressor;

[0034] a plate heat exchanger, a first inlet end of which is connected to an outlet end of the outdoor heat exchanger through a first valve, and a first outlet end of which is connected to a suction port of the compressor through a second valve;

[0035] a first distribution header tank, an inlet end of which is connected to a second outlet end of the plate heat exchanger;

[0036] a second distribution header tank, an outlet end of which is connected to a second inlet end of the plate heat exchanger;

[0037] At least one set of refrigeration and heating module, the refrigeration and heating module includes floor heating, indoor unit and indoor environment temperature sensing package, the inlet of the floor heating is connected with the outlet end of the first distribution water collector, the outlet of the floor heating is connected with the inlet end of the second distribution water collector;The inlet of the indoor unit is connected with the outlet end of the outdoor heat exchanger through the third valve, the outlet of the indoor unit is connected with the inlet end of the outdoor heat exchanger through the fourth valve;The indoor environment temperature sensing package is used to detect the temperature value and humidity value of the room where the refrigeration and heating module is located;

[0038] Outdoor environment temperature sensing package, for detecting the temperature value of the outdoor environment;

[0039] The compressor, the outdoor heat exchanger, the plate heat exchanger, the first distribution water collector, the second distribution water collector, the outdoor environment temperature sensing package and the refrigeration and heating module are all connected with the controller.

[0040] Compared with the prior art, the beneficial effects of the present application are:

[0041] The air conditioning refrigeration control method provided by the present application comprises the following steps: starting any and more refrigeration and heating modules, obtaining the temperature difference △Tx in each corresponding room under the current state according to the detected temperature value Tx and the user set value T0 under the current state, determining the required refrigeration mode of each corresponding room according to the relationship between △Tx and the preset value S, S is the preset value in the air conditioning system;Starting the compressor, calling the data information in the refrigeration and heating module and detecting the outdoor temperature value T 外 Determine the total energy required by the compressor, so as to realize different refrigeration modes according to different situations, provide corresponding compressor energy requirements, and improve user comfort by taking into account the refrigeration efficiency and blowing speed.

[0042] The air conditioning system provided by the present application can execute the above-mentioned air conditioning refrigeration control method, can reduce the wind speed under the condition of ensuring the refrigeration efficiency, and can improve the user comfort. BRIEF DESCRIPTION OF DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the contents of the embodiments of the present application and these drawings.

[0044] Figure 1 The schematic diagram of the air conditioning system provided by the present application is shown in the figure;

[0045] Figure 2A flowchart of an air conditioner refrigeration control method provided by the embodiment of the present application is shown in the figure.

[0046] Figure 3 A value diagram of X1 and X2 provided by the embodiment of the present application is shown in the figure.

[0047] Figure 4 A value diagram of Y provided by the embodiment of the present application is shown in the figure.

[0048] Figure 5 A flowchart of another air conditioner refrigeration control method provided by the embodiment of the present application is shown in the figure.

[0049] Reference signs:

[0050] 1, compressor; 2, outdoor heat exchanger; 3, plate heat exchanger; 4, first water distribution header; 5, second water distribution header; 6, outdoor ambient temperature sensing bulb; 7, refrigeration and heating module; 71, floor heating; 72, indoor unit; 73, indoor ambient temperature sensing bulb;

[0051] 101, first valve; 102, second valve;

[0052] 201, third valve; 202, fourth valve;

[0053] 301, fifth valve; 302, sixth valve. DETAILED DESCRIPTION

[0054] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the present application are further illustrated below in conjunction with the accompanying drawings and through specific embodiments.

[0055] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0056] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0057] In the description of this invention, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Furthermore, the terms "first" and "second" are used merely for distinction in description and have no special meaning.

[0058] Figure 1 A schematic diagram of the air conditioning system provided in this embodiment is shown. Figure 1 As shown, the air conditioning system includes a compressor 1, an outdoor heat exchanger 2, a plate heat exchanger 3, a first manifold 4, a second manifold 5, a cooling / heating module 7, and an outdoor ambient temperature sensor 6. The cooling / heating module 7 includes a floor heating system 71, an indoor unit 72, and an indoor ambient temperature sensor 73. The compressor 1 provides power to the air conditioning system, enabling its heating and cooling functions. The outdoor heat exchanger 2 provides the cooling or heating medium to the indoor unit 72. The plate heat exchanger 3 exchanges heat or water for the floor heating system 71. The indoor ambient temperature sensor 73 detects the temperature and humidity in the room where the cooling / heating module 7 is located, and the outdoor ambient temperature sensor 6 detects the outdoor temperature.

[0059] The air conditioning system also includes a controller. The compressor 1, outdoor heat exchanger 2, plate heat exchanger 3, first manifold 4, second manifold 5, cooling and heating module 7, and outdoor ambient temperature sensor 6 are all connected to the controller. The controller is used to control the operation of the compressor 1, outdoor heat exchanger 2, cooling and heating module 7 and other components according to the indoor temperature value, indoor humidity value, outdoor temperature value, preset value S in the air conditioning system and user setting value T0, so as to realize the cooling and heating function to meet the user's cooling and heating needs.

[0060] Optionally, the number of the refrigeration and heating modules 7 is at least one group, and each group of the refrigeration and heating modules 7 corresponds to one room. Exemplarily, in the embodiment, the number of the refrigeration and heating modules 7 is two groups. Of course, in other embodiments, the number of the refrigeration and heating modules 7 can also be any number, which can be determined according to the number of the rooms.

[0061] Continuing to refer to Figure 1 , the inlet end of the outdoor heat exchanger 2 is connected with the compressor 1; the first inlet end of the plate heat exchanger 3 is connected with the outlet end of the outdoor heat exchanger 2 through the first valve 101, and the first outlet end is connected with the suction port of the compressor 1 through the second valve 102; the inlet end of the first distribution header 4 is connected with the second outlet end of the plate heat exchanger 3; the outlet end of the second distribution header 5 is connected with the second inlet end of the plate heat exchanger 3; the inlet of the floor heating 71 of the refrigeration and heating module 7 is connected with the outlet end of the first distribution header 4, and the outlet of the floor heating 71 is connected with the inlet end of the second distribution header 5; the inlet of the indoor unit 72 of the refrigeration and heating module 7 is connected with the outlet end of the outdoor heat exchanger 2 through the third valve 201, and the outlet of the indoor unit 72 is connected with the inlet end of the outdoor heat exchanger 2 through the fourth valve 202. The controller controls the opening and closing of the compressor 1, the outdoor heat exchanger 2 and the plate heat exchanger 3 according to the detection value of the indoor environment temperature sensing package 73, the detection value of the outdoor environment temperature sensing package 6, the preset value S in the air conditioning system and the user set value T0, and controls the opening and closing of the first valve 101, the second valve 102, the third valve 201, the fourth valve 202, the first distribution header 4 and the second distribution header 5, so as to meet the refrigeration or heating demand of the user.

[0062] Exemplarily, the floor heating 71 in the first room is connected with the second distribution header 5 through the fifth valve 301, and the floor heating 71 in the second room is connected with the second distribution header 5 through the sixth valve 302. In the refrigeration mode, the fifth valve 301 and the sixth valve 302 can be opened or closed as needed.

[0063] In the air conditioning refrigeration process, when the room refrigeration efficiency is too slow, the user needs to adjust the indoor unit 72 to the maximum speed to improve the refrigeration effect. Due to the increase of the speed of the indoor unit 72, the noise will also be too large. Accordingly, by combining the indoor unit 72 with the radiant refrigeration of the floor heating 71, the heat exchange area is increased to ensure the refrigeration rate, and at the same time, due to the sharing of part of the refrigeration energy, the speed of the indoor unit 72 can be reduced to reduce the wind feeling while ensuring that the noise is within the acceptable range of the user, thereby improving the user comfort.

[0064] Exemplarily, the outdoor environment temperature sensing bag 6 is arranged on the outdoor heat exchanger 2, so as to accurately measure the temperature value of the outdoor heat exchanger 2, and to ensure that the controller can better control each element in the air conditioning system, and meet the cooling and heating requirements of the user. Exemplarily, the indoor environment temperature sensing bag 73 is arranged in a place where the indoor unit 72 does not directly blow, so as to avoid the influence of the direct blowing of the indoor unit 72 on the detection result of the indoor environment temperature sensing bag 73.

[0065] The air conditioning system provided in the embodiment can realize the static cooling mode through the cooperation of the floor heating 71 and the indoor unit 72, can improve the cooling efficiency, can reduce the wind feeling, and can improve the user comfort. In the static cooling mode, the controller controls the opening and closing of the connection between the floor heating 71 and the second collecting water tank 5 and the power of the indoor unit 72 by obtaining the detection value of the indoor environment temperature sensing bag 73, the detection value of the outdoor environment temperature sensing bag 6 and the preset value of the air conditioning system, so as to achieve the purpose of static cooling and meet the cooling requirements of different rooms.

[0066] Alternatively, the indoor unit 72 in each of the two groups of cooling and heating modules 7 is an evaporator forced convection indoor unit 72. Of course, in other embodiments, the indoor unit 72 can also be other types of indoor unit 72, and the indoor unit 72 in each of the two groups of cooling and heating modules 7 can also be different, which is not limited herein.

[0067] The embodiment further provides an air conditioning cooling control method, which is realized based on the above-mentioned air conditioning system, and can increase the indoor heat exchange area by controlling the wind side module (the indoor unit 72 and the like) and the water side module (the floor heating 71 and the like) to work coordinately, can reduce the fan speed of the indoor unit 72 under the condition of ensuring the cooling efficiency, can reduce the wind feeling while ensuring that the noise is within the acceptable range of the user, and can improve the user comfort.

[0068] It should be noted that in the normal state of the air conditioning system, the first valve 101, the second valve 102 and the first collecting water tank 4 are in the open state; when the air conditioning system is started in the static cooling mode, the third valve 201, the fourth valve 202 and the second collecting water tank 5 are in the open state, so as to ensure that the floor heating 71 is in the working state.

[0069] Figure 2 A flowchart of the air conditioning cooling control method provided in the embodiment is shown. As shown in the flowchart, the air conditioning cooling control method comprises the following steps: Figure 2

[0070] Determine the cooling mode required by the room: start any one or more cooling and heating modules 7, obtain the temperature difference △Tx in each corresponding room in the current state according to the temperature value Tx in each corresponding room in the current state and the user set value T0, and determine the cooling mode required by each corresponding room according to the relationship between △Tx and a preset value S, wherein S is a preset value in the air conditioning system.​

[0071] Determine the total energy required for the output of the compressor 1: start the compressor 1, and determine the total energy required for the output of the compressor 1 according to the data information in the calling refrigeration and heating module 7 and the outdoor temperature value T at the current state at the time of calling 外 Determine the total energy required for the output of the compressor 1.

[0072] The preset value S includes S1, S2 and S3, and S1 < 0 < S2 < S3. The method for determining the required refrigeration mode of each corresponding room is as follows: mode one: if △T ≥ S3, the air side module and the water side module in the room are opened, and the execution energy required for the air side module is P1; mode two: if S2 ≤ △T < S3, the air side module and the water side module in the room are opened, and the execution energy required for the air side module is P2, and P2 < P1; mode three: if S1 ≤ △T < S2, the air side module in the room is closed, and the water side module in the room is opened; mode four: if △T < S1, the air side module and the water side module in the room are closed. Of course, in other embodiments, the number of preset values S can also be two, four, five or any other number, and the number of refrigeration modes can be designed according to the number of refrigeration modes, which will not be illustrated one by one here.

[0073] When the water side module needs to be opened, the water supply temperature Tw of the water side module satisfies: Td-2 ≤ Tw ≤ Td+1; wherein the determination method of Td is as follows: calculate the candidate dew point temperature Tdx in each corresponding room according to the detected temperature value Tx and humidity value Hx in each corresponding room at the current state; when the number of candidate dew point temperatures Tdx is one, the candidate dew point temperature Tdx is determined as Td; when the number of candidate dew point temperatures Tdx is greater than one, the maximum value of each candidate dew point temperature Tdx is determined as Td.

[0074] The determination method of the total energy required for the output of the compressor 1 is as follows: the total energy required for the output of the compressor 1 = the air side energy required for the air side module + the water side energy required for the water side module. Wherein the air side energy required for the air side module = ∑ indoor unit 72 standard capacity in corresponding room * X1; the water side energy required for the water side module = ∑ indoor unit 72 standard capacity in corresponding room * X2 * Y, wherein X1, X2 are determined by △T, and Y is determined by the outdoor temperature T 外 When the energy required for the output of the compressor 1 is determined, the capacity of the compressor 1 is compensated by the dew point temperature. When the water supply temperature Tw is lower than Td-2, the output of the compressor 1 is reduced, and the compensation value is -2 hz / 40 s; when the water supply temperature Tw is greater than Td+1, the output of the compressor 1 is increased, and the compensation value is +2 hz / 40 s, and the maximum compensation value cannot exceed the water side energy required for the water side module corresponding to the frequency of the compressor 1. It should be noted that the frequency unit of the compressor 1 is HZ, and the corresponding relationship between the energy required for the output of the compressor 1 and the frequency of the compressor 1 is as follows: energy required for the output = corresponding capacity of the compressor per HZ * HZ.

[0075] When any of the refrigeration and heating module 7 is started, the temperature value Tx in the corresponding room in the current state is obtained immediately, and the required refrigeration mode of the corresponding room is determined. The temperature value Txn in each corresponding room in the current state is obtained every △t1 subsequently. When the compressor 1 is started, the required refrigeration mode information of the refrigeration and heating module 7 and the temperature value Tx in the corresponding room detected in the refrigeration and heating module 7 are called, and the outdoor temperature T 外 in the current state when the data is called is detected 外 The total energy required for the required output of the compressor 1 in the current state is determined. After the compressor 1 runs for t, the required refrigeration mode of the refrigeration and heating module 7 and the temperature value Tx or Txn in the corresponding room detected in the refrigeration and heating module 7 are called every △t2, and the outdoor temperature T 外n in the current state when the data is called is detected 外n The total energy required for the required output of the compressor 1 in the current state is determined.

[0076] Figure 3 The value of X1 and X2 provided in this embodiment is shown in the schematic diagram. Figure 4 The value of Y provided in this embodiment is shown in the schematic diagram. As Figures 3-4 shown, when determining the total energy required for the required output of the compressor 1, X1 and X2 are determined by △T called in the refrigeration and heating module 7, and Y is determined by the outdoor temperature value T 外 in the current state detected when the data information in the refrigeration and heating module 7 is called. That is, the temperature value Tx in the corresponding room in the current state detected by the indoor environment temperature sensing bag 73 in the refrigeration and heating module 7 determines △T, and then determines the values of X1 and X2; the outdoor temperature T 外 in the current state detected by the outdoor environment temperature sensing bag 6 when the data of the compressor 1 is called determines the value of Y.

[0077] Alternatively, △t2<△t1, and △t2<t. The range of △t1 is 5min≤△t1<40min; the range of t is 5min≤t<40min; the range of △t2 is 1min≤△t2<15min, △t2<△t1, and △t2<t. In this embodiment, △t1 can be 10min, t can be 10min, and △t2 can be 2min, so as to ensure that when starting the refrigeration and heating module 7 in multiple rooms, the compressor 1 can timely call the data information in each corresponding room, and timely and appropriately adjust the refrigeration capacity in each corresponding room, thereby improving the user experience.

[0078] Further, the acquisition time point of the alternative dew point temperature Tdx is synchronized with the operation control node of the refrigeration and heating module 7. In other words, when any refrigeration and heating module 7 is started, the temperature value Tx and the humidity value Hx in the corresponding room in the current state are immediately acquired. Subsequently, the temperature value T and the humidity value Hx in each corresponding room in the current state are acquired every △t1.

[0079] Figure 5 A flowchart of another air conditioning refrigeration control method provided by the embodiment is shown. As shown in Figure 5 In combination Figure 1 As shown in Figure 1 Taking the air conditioning system shown as an example, the air conditioning system has two groups of refrigeration and heating modules 7, and each group of refrigeration and heating modules 7 corresponds to a room. The two rooms are respectively referred to as a first room and a second room.

[0080] The air conditioning refrigeration control method comprises the following steps:

[0081] S100, when starting the refrigeration and heating module 7 in any room, the compressor 1 is started synchronously; the second valve 102, the third valve 201, and the fourth valve 202 are opened; (as long as the refrigeration and heating module 7 in one room is started, the compressor 1 can be started synchronously; or it can be understood that as long as one refrigeration and heating module 7 is started and operated, the compressor 1 needs to be kept in the starting and operating state)

[0082] S200, the temperature value T in the corresponding room in the current state is detected by the indoor environment temperature sensing bag 73 in the refrigeration and heating module 7, and the temperature difference △T in the corresponding room is calculated according to T and the preset value T0;

[0083] S300, the relationship between the △T value and the first set value S1, the second set value S2, and the third set value S3 is judged; if △T≥S3, S410 is executed; if S2≤△T<S3, S420 is executed; if S1≤△T<S2, S430 is executed; if △T<S1, S440 is executed;

[0084] S410, the air side module and the water side module in the corresponding room are opened, and the execution energy of the air side module needs to be P1;

[0085] S420, the air side module and the water side module in the corresponding room are opened, and the execution energy of the air side module needs to be P2, and P2<P1;

[0086] S430, the air side module in the corresponding room is closed, and the water side module in the room is opened;

[0087] S440, the air side module and the water side module in the corresponding room are closed.

[0088] After the step S410, the step S420, the step S430, the step S440, further comprising: S500, determining the total energy required for the compressor 1 to output according to the parameters obtained in the step S200 and the outdoor temperature value T at the time of detecting the calling data 外

[0089] Preferably, the refrigeration and heating module 7 executes the step S200 and the step S300 every △t1, and after the compressor 1 is started for t, the data information in the refrigeration and heating module 7 is called every △t2, and the outdoor temperature value at the time of calling the data is detected again, so as to provide the required energy for the corresponding room. In this way, the air conditioning system can detect the changes of the temperature value, the humidity value and the outdoor temperature value of the room at regular intervals, so as to adjust the refrigeration mode in time according to the changes of the indoor and outdoor environment, save energy consumption, and improve user comfort.

[0090] Optionally, the range of S1 is -3℃≤S1<0℃, the range of S2 is 0<S2<2℃, and the range of S3 is 2℃≤S3<5℃. Exemplarily, S1 is -1℃, S2 is 1℃, and S3 is 2℃. In this way, the energy saving effect of the air conditioning system can be improved while ensuring the refrigeration effect of the air conditioning system.

[0091] Exemplarily, when the water side module of a single room is opened, the alternative dew point temperature Td1 is calculated according to the temperature value and the humidity value in the room under the current state, and Tw satisfies: Td-2≤Tw≤Td+1, where Td=Td1. When the water side module of two or more rooms is opened, the temperature value and the humidity value of each room need to be detected, and then the alternative dew point temperature Tdx of each room is calculated according to the temperature value and the humidity value in the room, and the range of the water supply temperature Tw is determined according to the maximum value of the two or more alternative dew point temperatures Tdx, Tw satisfies: Td-2≤Tw≤Td+1, where Td=Tdxmax. In this way, the condensation phenomenon of the water supply pipeline can be effectively prevented. When the water supply temperature Tw is lower than this range, the output of the compressor 1 is reduced, and when the water supply temperature Tw exceeds this range, the output of the compressor 1 is increased.

[0092] Further, Tw should also satisfy: the minimum water supply temperature Tw cannot be lower than 16℃, i.e. 16℃≤Tw, so as to avoid the poor user experience caused by the low floor temperature due to the too low water supply temperature.

[0093] Optionally, the range of t is 5min≤t<40min, and the range of △t is 1min≤△t<15min. Exemplarily, t can be 10min, and △t can be 2min. Of course, in other embodiments, t can be 5min-20min, and △t can be 2min-10min, which can be set according to the changes of the indoor and outdoor environment of the air conditioning system, and is not limited herein.​

[0094] Exemplarily, the embodiment also provides another air conditioner refrigeration control method, comprising the following steps:

[0095] S10, starting the refrigeration and heating module 7 of the air conditioner system;

[0096] S20, obtaining the temperature value in the corresponding room, the humidity value in the corresponding room and the outdoor temperature value in the current state, and calculating the room temperature difference AT according to the temperature value in the corresponding room and the preset value, and calculating the alternative dew point temperature Tdx according to the temperature value and the humidity value in the corresponding room;

[0097] S30, judging the relationship between AT and -1℃, 1℃ and 2℃; if AT≥2℃, executing S41; if 1℃≤AT<2℃, executing S42; if -1℃≤AT<1℃, executing S43; if AT<-1℃, executing S44;

[0098] S41, opening the air side module and the water side module in the room, the indoor unit 72 of the air side module is medium air speed, the water supply temperature Tw of the water side module is not lower than 16℃, and meets: when the number of Tdx is one, Tw meets: Td-2≤Tw≤Td+1, Td=Tdx; when the number of Tdx is more than one, Tw meets: Td-2≤Tw≤Td+1, Td=Tdxmax;

[0099] S42, opening the air side module and the water side module in the room, the indoor unit 72 of the air side module is low air speed, the water supply temperature Tw of the water side module is not lower than 16℃, and meets: when the number of Tdx is one, Tw meets: Td-2≤Tw≤Td+1, Td=Tdx; when the number of Tdx is more than one, Tw meets: Td-2≤Tw≤Td+1, Td=Tdxmax;

[0100] S43, closing the air side module in the room, opening the water side module in the room, the water supply temperature Tw of the water side module is not lower than 16℃, and meets: when the number of Tdx is one, Tw meets: Td-2≤Tw≤Td+1, Td=Tdx; when the number of Tdx is more than one, Tw meets: Td-2≤Tw≤Td+1, Td=Tdxmax;

[0101] S44, closing the air side module and the water side module in the room.

[0102] The data is detected once (S20 and S30 are performed) immediately after the refrigeration and heating module 7 and the compressor 1 are started, the refrigeration and heating module 7 re-performs the detection of the data once every 10 minutes (S20 and S30 are performed), the compressor 1 collects data every 2 minutes after running for 10 minutes, if the determination condition of other intervals is reached during the running process, the corresponding interval control is entered, different rooms are detected and controlled, the compressor 1 outputs the capacity through the sum of the loads of all rooms, if all the room water valves are closed, the compressor 1 outputs 0, and the unit enters the standby state, until any room reaches the state of the water valve being opened, through this control, it is ensured that the room temperature is always in the interval of the user-set temperature after stabilization, and the user comfort is improved.

[0103] Note that in the description of the present specification, the description referring to the terms "one embodiment", "in other embodiments", and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0104] The above are only the preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments herein, and various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. An air conditioning cooling control method, implemented based on an air conditioning system, said air conditioning system comprising a compressor and at least one cooling / heating module, characterized in that, The air conditioning cooling control method includes the following steps: Determine the required cooling mode for the room: Activate any one or more cooling or heating modules, obtain the temperature difference ΔTx in each corresponding room under the current state based on the detected temperature value Tx in each corresponding room and the user-set value T0, and determine the required cooling mode for each corresponding room based on the relationship between ΔTx and the preset value S, where S is the preset value in the air conditioning system. Determine the total energy required for the compressor output: Start the compressor and, based on the data information from the cooling / heating module and the outdoor temperature T detected at the time of activation... 外 Determine the total energy requirement for the compressor output; When any of the aforementioned cooling and heating modules is started, the temperature value Tx in each corresponding room under the current state is immediately detected and the required cooling mode for the corresponding room is determined; subsequently, the temperature value Txn in each corresponding room under the current state is re-detected every Δt1 and the required cooling mode for the corresponding room is determined again. After the compressor starts and runs for t hours, the data information in the cooling and heating module is retrieved every Δt2, and the outdoor temperature T at the current state is detected. 外n ; The preset value S includes the relationship between the first preset value S1, the second preset value S2, and the third preset value S3, wherein S1, S2, and S3 satisfy: S1 < 0 < S2 < S3. If △T≥S3, then the wind-side module and water-side module in the room are turned on, and the execution power of the wind-side module needs to be P1; If S2≤△T<S3, then the wind-side module and water-side module in the room are turned on. The execution power of the wind-side module is P2, and P2<P1. If S1≤△T<S2, then the wind-side module in the room is turned off and the water-side module in the room is turned on. If △T < S1, then the wind-side module and water-side module in the room are turned off.

2. The air conditioning refrigeration control method according to claim 1, characterized in that, When the water-side module needs to be opened, the water supply temperature Tw of the water-side module satisfies: Td-2≤Tw≤Td+1; where Td is determined as follows: Based on the temperature value Tx and humidity value Hx of each corresponding room under the current detection conditions, calculate the candidate dew point temperature Tdx for each corresponding room; when the number of candidate dew point temperatures Tdx is one, determine the candidate dew point temperature Tdx as Td; when the number of candidate dew point temperatures Tdx is greater than one, determine the maximum value among the candidate dew point temperatures Tdx as Td.

3. The air conditioning refrigeration control method according to claim 2, characterized in that, When the water-side module needs to be turned on, the water supply temperature Tw of the water-side module must also satisfy: 16℃≤Tw.

4. The air conditioning refrigeration control method according to any one of claims 1-3, characterized in that, The total energy required for the compressor output = the wind-side energy requirement of the wind-side module + the water-side energy requirement of the water-side module.

5. The air conditioning refrigeration control method according to claim 4, characterized in that, The wind-side energy demand is calculated as ∑ (standard capacity of the indoor unit in the corresponding room) * X1; the water-side energy demand is calculated as ∑ (standard capacity of the indoor unit in the corresponding room) * X2 * Y, where X1 and X2 are determined by ΔT from the cooling / heating module, and Y is the outdoor temperature value T detected when the data information from the cooling / heating module is accessed. 外 Sure.

6. The air conditioning refrigeration control method according to claim 5, characterized in that, The range of S1 is -3℃ ≤ S1 < 0℃; and / or The range of S2 is 0 < S2 < 2℃; and / or The range of S3 is 2℃ ≤ S3 < 5℃; and / or The range of Δt1 is 5 min ≤ Δt1 < 40 min; and / or The range of t is 5 min ≤ t < 40 min; and / or The range of Δt2 is 1 min ≤ Δt2 < 15 min; and / or △t2<△t1,△t2<t。 7. An air conditioning system, characterized in that, The system includes a controller for executing the air conditioning refrigeration control method as described in any one of claims 1-6, and the air conditioning system further includes: Compressor (1); An outdoor heat exchanger (2) is connected at its inlet end to the compressor (1); The plate heat exchanger (3) has its first inlet end connected to the outlet end of the outdoor heat exchanger (2) through a first valve (101), and its first outlet end connected to the suction port of the compressor (1) through a second valve (102). The first water manifold (4) has its inlet end connected to the second outlet end of the plate heat exchanger (3); The second water distribution manifold (5) has its outlet end connected to the second inlet end of the plate heat exchanger (3); At least one set of cooling and heating modules (7) is provided. The cooling and heating module (7) includes a floor heating system (71), an indoor unit (72), and an indoor environment temperature sensor (73). The inlet of the floor heating system (71) is connected to the outlet of the first manifold (4), and the outlet of the floor heating system (71) is connected to the inlet of the second manifold (5). The inlet of the indoor unit (72) is connected to the outlet of the outdoor heat exchanger (2) through a third valve (201), and the outlet of the indoor unit (72) is connected to the inlet of the outdoor heat exchanger (2) through a fourth valve (202). The indoor environment temperature sensor (73) is used to detect the temperature and humidity values ​​of the room where the cooling and heating module (7) is located. Outdoor ambient temperature sensor (6) is used to detect the outdoor temperature value; The compressor (1), the outdoor heat exchanger (2), the plate heat exchanger (3), the first water manifold (4), the second water manifold (5), the outdoor ambient temperature sensor (6), and the cooling and heating module (7) are all connected to the controller.

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