Control method of an environmental conditioning device, environmental conditioning device, and storage medium

Abstract

The application discloses a control method of an environment adjusting device, the environment adjusting device and a storage medium. The environment adjusting device comprises a heat pump system and a water system connected with the heat pump system, the heat pump system is used for adjusting the water supply temperature of the water system, and the water system is used for adjusting the indoor temperature. The method comprises the following steps: acquiring at least two environment temperatures of an indoor space adjusted by the water system, the at least two environment temperatures are detected at different times respectively; determining a water temperature adjustment value according to the at least two environment temperatures; adjusting the current target water supply temperature of the water system according to the water temperature adjustment value, and controlling the heat pump system to operate according to the adjusted target water supply temperature. The application aims to improve the matching degree between the operation of the environment adjusting device and the actual load, so as to improve the energy efficiency of the device.

Description

Technical Field

[0001] This invention relates to the field of environmental equipment technology, and more particularly to control methods, environmental conditioning equipment, and storage media for environmental conditioning equipment. Background Technology

[0002] In addition to traditional air conditioners, current environmental control equipment such as heat pump systems and water circuit systems provide the necessary cooling or heating for indoor environmental regulation. Heat pump systems can provide water carrying cooling or heating to water circuit systems. The water flowing into the water circuit system flows into the indoor environment for heat exchange to regulate the indoor temperature.

[0003] Heat pump systems typically have a target supply water temperature set during operation. The system's operation is regulated based on the relationship between the actual detected water temperature supplied to the water circuit and the target supply water temperature, ensuring the water circuit's supply water temperature reaches the target temperature. However, the target supply water temperature is usually a parameter manually set by the user or determined based on actual operating conditions when the equipment is powered on. If the target supply water temperature remains constant during operation, it can easily lead to a mismatch between the equipment's operation and the actual load, resulting in poor energy efficiency. Summary of the Invention

[0004] The main objective of this invention is to provide a control method, an environmental control device, and a storage medium for an environmental control device, aiming to improve the matching degree between the operation of the environmental control device and the actual load, thereby improving the energy efficiency of the device.

[0005] To achieve the above objectives, the present invention provides a control method for an environmental conditioning device, the environmental conditioning device including a heat pump system and a water system connected to the heat pump system, the heat pump system being used to regulate the water supply temperature of the water system, and the water system being used to regulate the indoor temperature. The control method for the environmental conditioning device includes the following steps:

[0006] At least two ambient temperatures of the indoor space regulated by the water system are obtained, and the at least two ambient temperatures are detected at different times.

[0007] The water temperature adjustment value is determined based on the at least two ambient temperatures;

[0008] The target water supply temperature of the water system is adjusted according to the water temperature adjustment value, and the operation of the heat pump system is controlled according to the adjusted target water supply temperature.

[0009] Optionally, the step of determining the water temperature adjustment value based on the at least two ambient temperatures includes:

[0010] The water temperature adjustment value is determined based on at least two target temperature difference values ​​corresponding to at least two ambient temperatures;

[0011] The target temperature difference value is the temperature difference between the ambient temperature and the set temperature of the indoor space.

[0012] Optionally, the at least two ambient temperatures include a first ambient temperature detected before the current time and a second ambient temperature detected at the current time. A first temperature difference is defined as the target temperature difference value corresponding to the first ambient temperature, and a second temperature difference is defined as the target temperature difference value corresponding to the second ambient temperature. The step of determining the water temperature adjustment value based on the at least two target temperature difference values ​​corresponding to the at least two ambient temperatures includes:

[0013] The temperature difference change value is determined based on the difference between the second temperature difference value and the first temperature difference value; the water temperature adjustment value is determined based on the second temperature difference value and the temperature difference change value.

[0014] Optionally, the step of determining the water temperature adjustment value based on the second temperature difference value and the temperature difference change value includes:

[0015] Determine the first numerical range in which the second temperature difference value lies, and determine the second numerical range in which the temperature difference change value lies;

[0016] The water temperature adjustment value is determined based on the first numerical range and the second numerical range.

[0017] Optionally, the step of determining the water temperature adjustment value based on the second temperature difference value and the temperature difference change value includes:

[0018] When there is more than one indoor space, the indoor space with the largest value among all the second temperature difference values ​​corresponding to more than one indoor space is determined as the target space;

[0019] The water temperature adjustment value is determined based on the second temperature difference value corresponding to the target space and the temperature difference change value.

[0020] Optionally, one of the at least two ambient temperatures is the second ambient temperature of the indoor space detected at the current moment. After the steps of adjusting the current target water supply temperature of the water system according to the water temperature adjustment value and controlling the operation of the heat pump system according to the adjusted target water supply temperature, the method further includes:

[0021] The target duration is determined based on the second ambient temperature.

[0022] After the target time interval, return to the step of obtaining at least two ambient temperatures of the indoor space regulated by the water system.

[0023] Optionally, the step of determining the target duration based on the second ambient temperature includes:

[0024] The target duration is determined based on a second temperature difference between the second ambient temperature and the set temperature of the indoor space, and the target duration is positively correlated with the second temperature difference.

[0025] Optionally, the steps of adjusting the current target water supply temperature of the water system according to the water temperature adjustment value, and controlling the operation of the heat pump system according to the adjusted target water supply temperature, include:

[0026] The target adjustment rate of the target water supply temperature is determined based on the water temperature adjustment value.

[0027] The target water supply temperature of the water system is adjusted according to the target adjustment rate, and the operation of the heat pump system is controlled according to the adjusted target water supply temperature.

[0028] Optionally, the step of determining the target adjustment rate of the target water supply temperature based on the water temperature adjustment value includes:

[0029] When the environmental control equipment is in cooling operation, if the target water supply temperature corresponding to the water temperature adjustment value changes in a decreasing direction, then the first rate is determined as the target adjustment rate; if the target water supply temperature corresponding to the water temperature adjustment value changes in an increasing direction, then the second rate is determined as the target adjustment rate; the first rate is greater than the second rate.

[0030] Optionally, the step of determining the target adjustment rate of the target water supply temperature based on the water temperature adjustment value includes:

[0031] When the environmental control equipment is in heating operation, if the target water supply temperature corresponding to the water temperature adjustment value changes in a decreasing direction, then the third rate is determined as the target adjustment rate; if the target water supply temperature corresponding to the water temperature adjustment value changes in an increasing direction, then the fourth rate is determined as the target adjustment rate; the third rate is less than the fourth rate.

[0032] Optionally, after the step of adjusting the current target water supply temperature of the water system according to the water temperature adjustment value, the method further includes:

[0033] If the adjusted target water supply temperature is less than or equal to a preset lower limit of the target water supply temperature, then the heat pump system is controlled to operate according to the preset lower limit.

[0034] If the adjusted target water supply temperature is greater than or equal to the preset upper limit of the target water supply temperature, then the heat pump system is controlled to operate according to the preset upper limit.

[0035] If the adjusted target water supply temperature is greater than the preset lower limit and less than the preset upper limit, then the step of controlling the operation of the heat pump system according to the adjusted target water supply temperature is executed.

[0036] Furthermore, in order to achieve the above objectives, this application also proposes an environmental control device, which includes:

[0037] Heat pump system;

[0038] A water system is connected to a heat pump system, the heat pump system is used to regulate the water supply temperature of the water system, and the water system is used to regulate the indoor temperature by utilizing the energy carried by the water supplied by the heat pump system.

[0039] A control device is provided, wherein both the heat pump system and the water system are connected to the control device. The control device includes: a memory, a processor, and a control program for an environmental conditioning device stored in the memory and executable on the processor. When the control program for the environmental conditioning device is executed by the processor, it implements the steps of the control method for the environmental conditioning device as described in any of the preceding claims.

[0040] In addition, to achieve the above objectives, this application also proposes a storage medium storing a control program for an environmental control device, wherein the control program for the environmental control device, when executed by a processor, implements the steps of the control method for the environmental control device as described in any of the preceding claims.

[0041] This invention proposes a control method for an environmental conditioning device. The device comprises a heat pump system and a water system connected to the heat pump system. This method acquires at least two ambient temperatures of the indoor space regulated by the water system, detected at different times, reflecting changes in the actual load of the indoor space. Based on the water temperature adjustment values ​​determined by the at least two ambient temperatures, the target water supply temperature of the water system is adjusted, and the heat pump system is controlled to operate according to the adjusted target water supply temperature. The target water supply temperature is no longer a fixed temperature but can adapt to changes in the load of the indoor space. The heat exchange of the water system under the operation control of the heat pump system based on the adjusted target water supply temperature can accurately match the actual load changes of the indoor space, effectively improving the energy efficiency of the environmental conditioning device and enhancing the accuracy and stability of indoor ambient temperature regulation. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the system structure of an embodiment of the environmental control device of the present invention;

[0043] Figure 2 This is a schematic diagram of the hardware structure involved in the operation of an embodiment of the environmental control device of the present invention;

[0044] Figure 3 This is a flowchart illustrating an embodiment of the control method for the environmental conditioning equipment of the present invention;

[0045] Figure 4 This is a schematic flowchart of another embodiment of the control method for the environmental conditioning equipment of the present invention;

[0046] Figure 5 for Figure 4 A detailed flowchart of step S21;

[0047] Figure 6 This is a flowchart illustrating another embodiment of the control method for the environmental conditioning equipment of the present invention;

[0048] Figure 7 This is a flowchart illustrating another embodiment of the control method for the environmental conditioning equipment of the present invention.

[0049] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0050] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0051] This invention provides an environmental control device specifically for regulating the temperature of an indoor environment.

[0052] In this embodiment of the invention, reference is made to Figure 1 and Figure 2 The environmental control equipment includes a heat pump system 2, a water system 3 connected to the heat pump system 2, and a control device 1. Both the heat pump system 2 and the water system 3 are connected to the control device 1. The heat pump system 2 is used to regulate the water supply temperature of the water system 3, and the water system 3 is used to regulate the indoor temperature using the energy carried by the water supplied by the heat pump system 2.

[0053] In this embodiment, the heat pump system 2 is an air source heat pump system 2. In other embodiments, the heat pump system 2 may also be a water source heat pump system, a ground source heat pump system, or a dual-source heat pump system, etc.

[0054] In this embodiment, the heat pump system 2 includes a refrigerant circulation loop and a hot water exchange circuit. The refrigerant circulation loop includes a compressor, a first heat exchanger, a throttling device, and a second heat exchanger. The second heat exchanger is connected to the hot water exchange circuit for heat exchange.

[0055] The water system 3 includes a water circulation loop and terminal heat exchange devices located within the water circulation loop. These terminal heat exchange devices may include underfloor heating coils, radiant panels, fan coil units, or radiators. The cold or heat capacity of the water in the water circulation loop can be released into the indoor space where the terminal heat exchange device is located. There may be one or more terminal heat exchange devices; more than one terminal heat exchange device can be distributed across different indoor spaces. Therefore, the cold or heat capacity carried by the water in the water circulation loop can be used to regulate the ambient temperature of more than one indoor space.

[0056] The water circulation loop has an inlet and an outlet. The inlet of the water circulation loop is connected to the outlet of the hot water exchange circuit, and the outlet of the water circulation loop is connected to the inlet of the hot water exchange circuit.

[0057] During the operation of heat pump system 2, the water in the hot water exchange circuit absorbs the cold or heat released by the second heat exchanger to form cold or hot water. The hot or cold water flowing out of the heat exchange branch can enter the water circulation loop and flow to the terminal heat exchange equipment to release the cold or heat into the indoor air, thereby regulating the ambient temperature of the indoor space. The water that has released the cold or heat can re-enter the hot water exchange circuit to exchange heat with the second heat exchanger, and the water after heat exchange can re-enter the water circulation loop for heat exchange. This cycle continues, thereby achieving the regulation of the indoor space temperature by the environmental control equipment.

[0058] When the heat pump system 2 is running in cooling mode, the second heat exchanger is in an evaporation state. The water in the hot water exchange circuit absorbs the cooling energy output by the second heat exchanger and its temperature drops to form cold water. The cold water enters the water circulation loop and flows to the terminal heat exchange equipment, releasing the cooling energy into the indoor space, thus lowering the ambient temperature of the indoor space.

[0059] When the heat pump system 2 is in heating mode, the second heat exchanger is in a condensing state. The water in the hot water exchange circuit absorbs the heat output from the second heat exchanger and its temperature rises to form hot water. The hot water enters the water circulation loop and flows to the terminal heat exchange equipment, releasing heat into the indoor space, thus raising the ambient temperature of the indoor space.

[0060] Furthermore, in this embodiment, referring to Figure 1 and Figure 2 ,in Figure 1 The middle arrow indicates the direction of water flow. The environmental control equipment may also include a temperature sensor 4, which is located at the outlet of the hot water exchange circuit or the inlet of the water circulation loop. The temperature sensor 4 is connected to the control device 1. The temperature sensor 4 can be used to detect the actual water supply temperature of the water system 3.

[0061] Furthermore, in this embodiment, referring to Figure 2 The control device 1 can also be connected to the environmental detection module 5 located in the indoor space, which can detect the ambient temperature of the indoor space.

[0062] In this embodiment of the invention, reference is made to Figure 2 The control device 1 of the environmental control equipment includes: a processor 1001 (e.g., CPU), a memory 1002, a timer 1003, etc. The components in the control device 1 are connected via a communication bus. The memory 1002 can be a high-speed RAM or a stable, non-volatile memory, such as a disk drive. Optionally, the memory 1002 can also be a storage device independent of the aforementioned processor 1001.

[0063] Those skilled in the art will understand that Figure 2 The device structure shown does not constitute a limitation on the device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0064] like Figure 2 As shown, the memory 1002, which serves as a storage medium, may include a control program for an environmental control device. Figure 2 In the device shown, the processor 1001 can be used to call the control program of the environmental control device stored in the memory 1002 and execute the relevant steps of the control method of the environmental control device in the following embodiments.

[0065] This invention also provides a control method for an environmental control device, which is applied to the aforementioned environmental control device.

[0066] Reference Figure 3 This application proposes an embodiment of a control method for an environmental conditioning device. In this embodiment, the control method for the environmental conditioning device includes:

[0067] Step S10: Obtain at least two ambient temperatures of the indoor space regulated by the water system, wherein the at least two ambient temperatures are detected at different times.

[0068] The interval between two adjacent temperatures in at least two ambient temperatures can be a pre-set fixed duration or a duration determined based on the operating status of the environmental control equipment or the actual environmental conditions of the indoor space.

[0069] The aforementioned environmental monitoring module can continuously monitor the ambient temperature of the indoor space it is located in. At least two ambient temperatures can be obtained by reading the data detected by the environmental monitoring module at at least two different times.

[0070] In this embodiment, the at least two ambient temperatures include a first ambient temperature collected before the current time and a second ambient temperature collected at the current time. In other embodiments, the at least two ambient temperatures may also be more than one ambient temperature collected at different times before the current time. The number of ambient temperatures may be two, three, four, or more.

[0071] Step S20: Determine the water temperature adjustment value based on the at least two ambient temperatures;

[0072] The water temperature adjustment value specifically includes the adjustment range or adjustment ratio used to adjust the current target water supply temperature of the heat pump system.

[0073] At least two different ambient temperatures will correspond to different water temperature adjustment values. The correspondence between at least two ambient temperatures and water temperature adjustment values ​​can be preset, and can take the form of a mapping relationship, calculation formula, etc. Based on this correspondence, the water temperature adjustment values ​​corresponding to the current at least two ambient temperatures can be determined.

[0074] Specifically, a characteristic temperature (e.g., average, maximum, or minimum value among all ambient temperatures) can be determined based on at least two ambient temperatures, and the water temperature adjustment value can be determined based on this characteristic temperature. Alternatively, a temperature change value (e.g., temperature change amplitude or rate of change) can be determined based on the temperature difference between at least two ambient temperatures, and the water temperature adjustment value can be determined based on this temperature change value. Furthermore, the water temperature adjustment value can be determined by combining the aforementioned characteristic temperature and temperature change value.

[0075] Step S30: Adjust the current target water supply temperature of the water system according to the water temperature adjustment value, and control the operation of the heat pump system according to the adjusted target water supply temperature.

[0076] The target water supply temperature is specifically the target temperature that the water supply system needs to achieve.

[0077] The current target water supply temperature is specifically the temperature control parameter currently used to control the operation of the heat pump system. It can be a pre-set fixed parameter for the water system, or it can be the target water supply temperature obtained after adjustments to the water system before the current moment.

[0078] In this embodiment, the water temperature adjustment value is the temperature adjustment range, and the sum of the current target water supply temperature and the water temperature adjustment value is used as the adjusted target water supply temperature. In other embodiments, the water temperature adjustment value is the temperature adjustment ratio, and the adjusted target water supply temperature can be obtained by adjusting the current target water supply temperature according to the temperature adjustment ratio.

[0079] After obtaining the adjusted target water supply temperature, the current water supply temperature of the water system can be obtained by reading the data detected by the aforementioned temperature sensors. The operation of the heat pump system is then controlled based on the comparison between the current water supply temperature and the adjusted target water supply temperature. Specifically, when the heat pump system is operating in cooling mode, if the current water supply temperature is higher than the adjusted target water supply temperature, the heat pump system is controlled to lower the actual water supply temperature (e.g., by increasing the compressor operating frequency); if the current water supply temperature is lower than the adjusted target water supply temperature, the heat pump system is controlled to raise the actual water supply temperature (e.g., by decreasing the compressor operating frequency). When the heat pump system is operating in heating mode, if the current water supply temperature is higher than the adjusted target water supply temperature, the heat pump system is controlled to lower the actual water supply temperature (e.g., by decreasing the compressor operating frequency); if the current water supply temperature is lower than the adjusted target water supply temperature, the heat pump system is controlled to raise the actual water supply temperature (e.g., by increasing the compressor operating frequency). Based on this, it can be ensured that the water supply temperature of the water system can accurately reach the adjusted target water supply temperature, so that the heat exchange provided by the water system to the indoor space can accurately meet the actual load requirements of the indoor space.

[0080] This invention proposes a control method for an environmental conditioning device, based on an environmental conditioning device comprising a heat pump system and a water system connected to the heat pump system. The method acquires at least two ambient temperatures of the indoor space regulated by the water system, detected at different times, reflecting changes in the actual load of the indoor space. Based on the water temperature adjustment values ​​determined by the at least two ambient temperatures, the target water supply temperature of the water system is adjusted, and the heat pump system is controlled to operate according to the adjusted target water supply temperature. The target water supply temperature of the water system is no longer a fixed temperature but can adapt to changes in the load of the indoor space. The heat exchange of the water system under the operation control of the heat pump system based on the adjusted target water supply temperature can accurately match the actual load changes of the indoor space, effectively improving the energy efficiency of the environmental conditioning device and enhancing the accuracy and stability of indoor ambient temperature regulation.

[0081] Furthermore, based on the above embodiments, another embodiment of the control method for the environmental conditioning equipment of this application is proposed. In this embodiment, reference is made to... Figure 4 Step S20 includes:

[0082] Step S21: Determine the water temperature adjustment value based on at least two target temperature difference values ​​corresponding to the at least two ambient temperatures; wherein, the target temperature difference value is the temperature difference between the corresponding ambient temperature and the set temperature of the indoor space.

[0083] The set temperature is specifically the target value that the indoor space's ambient temperature needs to reach under the regulation of the pre-set environmental control equipment. Specifically, the temperature difference between each ambient temperature and the set temperature is determined, and the target temperature difference value corresponding to each ambient temperature is obtained.

[0084] The water temperature adjustment value is determined based on at least two target temperature difference values. Specifically, a correspondence between at least two target temperature difference values ​​and the water temperature adjustment value can be established in advance, which can be in the form of a mapping relationship, calculation formula, etc. Based on this correspondence, the water temperature adjustment value corresponding to the current at least two target temperature difference values ​​can be determined.

[0085] In this embodiment, the temperature difference between the ambient temperature and the set temperature can accurately reflect the actual load of the heat pump system, and the target temperature difference at different times can accurately reflect the changes in the actual load of the heat pump system. Therefore, combining at least two target temperature difference values ​​to determine the water temperature adjustment value is beneficial to further ensure the matching degree between the target water supply temperature of the water system and the changes in actual load demand, thereby further improving the energy efficiency of the environmental control equipment and improving the accuracy and stability of indoor ambient temperature control.

[0086] Furthermore, in this embodiment, the at least two ambient temperatures include a first ambient temperature detected before the current time and a second ambient temperature detected at the current time. A first temperature difference is defined as the target temperature difference value corresponding to the first ambient temperature, and a second temperature difference is defined as the target temperature difference value corresponding to the second ambient temperature. Figure 5 Step S21 includes:

[0087] Step S211: Determine the temperature difference change value based on the difference between the second temperature difference value and the first temperature difference value;

[0088] In this embodiment, the difference between the second temperature difference value and the first temperature difference value is used as the temperature difference change value. In other embodiments, the difference between the second temperature difference value and the first temperature difference value is determined, the interval between the detection time of the first ambient temperature and the detection time of the second ambient temperature is determined, the temperature difference change rate is determined according to the ratio of the difference to the interval, and the temperature difference change rate is used as the temperature difference change value here.

[0089] Step S212: Determine the water temperature adjustment value based on the second temperature difference value and the temperature difference change value.

[0090] Different second temperature difference values ​​and different temperature difference change values ​​correspond to different water temperature adjustment values. Specifically, the water temperature adjustment value can be calculated from the second temperature difference value and the temperature difference change value, or the mapping relationship can be queried from the second temperature difference value and the temperature difference change value to obtain the water temperature adjustment value.

[0091] In this embodiment, a first numerical range in which the second temperature difference value is located is determined, and a second numerical range in which the temperature difference change value is located is determined; the water temperature adjustment value is determined based on the first numerical range and the second numerical range.

[0092] Specifically, at least two preset temperature difference intervals and at least two preset temperature change intervals can be pre-defined. Within the at least two preset temperature difference intervals, the interval containing the second temperature difference value is determined as the first numerical interval, and within the at least two preset temperature change intervals, the interval containing the second temperature difference value is determined as the second numerical interval. After determining the first and second numerical intervals, a preset mapping relationship can be queried, and the preset temperature adjustment value that has a mapping relationship with the first and second numerical intervals can be used as the water temperature adjustment value.

[0093] In this embodiment, the first temperature difference is defined as E_TA, and the temperature difference change is defined as ΔE_TA. Taking the cooling operation of a heat pump system as an example, the process of determining the water temperature adjustment value ΔTWS is explained:

[0094] ΔTWS △E_TA≥1 -1≤△E_TA<1 △E_TA<-1.0 E_TA>4 -5 -3 -2 2<E_TA≤4 -4 -2 -1 1 < E_TA ≤ 2 -3 0 2 E_TA≤1 -1 2 4

[0095] Based on this, by querying the mapping table above using the first temperature difference value and the second temperature difference value, the first numerical range where the first temperature difference value is located is determined, and the second numerical range where the second temperature difference value is located is determined. The values ​​in the mapping table that have a mapping relationship between the first numerical range and the second numerical range are used as the current water temperature adjustment values.

[0096] In this embodiment, the current target water supply temperature of the water system can be the target water supply temperature adjusted based on the first ambient temperature and the third ambient temperature detected between the first ambient temperature and the first ambient temperature.

[0097] In this embodiment, the second temperature difference value reflects the actual load demand at the current moment, and the temperature difference change value reflects the change in the actual load. Therefore, combining the second temperature difference value and the temperature difference change value to determine the water temperature adjustment value is beneficial to improving the accuracy of the target water supply temperature adjustment. This ensures that the operation of the heat pump system after the target water supply temperature adjustment can accurately match the changes in the current actual load and the indoor space load, thereby ensuring the effective improvement of the operating energy efficiency of the heat pump system after the target water supply temperature adjustment, and that the indoor space temperature can accurately and stably meet the user's comfort needs.

[0098] In other embodiments, the first temperature difference value may be located in a first numerical range and the second temperature difference value may be located in a third numerical range. The water temperature adjustment value may be determined by the first numerical range and the third numerical range.

[0099] Furthermore, in this embodiment, the step of determining the water temperature adjustment value based on the second temperature difference value and the temperature difference change value includes: when the number of indoor spaces is more than one, determining the indoor space with the largest value among all the second temperature difference values ​​corresponding to the more than one indoor space as the target space; and determining the water temperature adjustment value based on the second temperature difference value and the temperature difference change value corresponding to the target space.

[0100] Different indoor spaces can correspond to different set temperatures. The second temperature difference value corresponding to each indoor space is based on the second ambient temperature and the set temperature of the indoor space. The first temperature difference value corresponding to each indoor space is based on the first ambient temperature and the set temperature of the indoor space. The temperature difference change value of each indoor space can be determined based on the first and second temperature difference values ​​corresponding to that space.

[0101] In this embodiment, the target water supply temperature of the water system is adjusted based on the second temperature difference value and the temperature difference change value corresponding to the space with the largest second temperature difference value. This ensures that when the heat pump system operates at the adjusted target water supply temperature, the heat exchange output of the water system can meet the actual load of all spaces, thereby improving the energy efficiency of the heat pump system while ensuring the comfort of each indoor space.

[0102] In other embodiments, when there is more than one indoor space, the average of all second temperature difference values ​​corresponding to more than one indoor space can be determined as the third temperature difference value, and the average of all temperature difference change values ​​corresponding to more than one indoor space can be determined as the target temperature difference change value. The water temperature adjustment value is determined based on the third temperature difference value and the target temperature difference change value.

[0103] Furthermore, based on any of the above embodiments, another embodiment of the control method for the environmental conditioning equipment of this application is proposed. In this embodiment, after step S30, after an interval of a target duration, the process returns to step S10.

[0104] The target duration can be a pre-set fixed duration or a duration determined based on the actual operating status of the environmental control equipment.

[0105] In this embodiment, the target water supply temperature of the water system can be continuously updated to adapt to changes in the indoor ambient temperature during the operation of the heat pump system, thereby ensuring that the operation of the heat pump system is continuously and accurately matched with the actual load of the indoor space, and ensuring that the environmental control equipment can continuously maintain high energy efficiency.

[0106] Furthermore, in this embodiment, one of the at least two ambient temperatures is the second ambient temperature of the indoor space detected at the current moment, as referenced. Figure 6After step S30, the method further includes:

[0107] Step S40: Determine the target duration based on the second ambient temperature;

[0108] Different secondary ambient temperatures correspond to different target durations. The target duration and the secondary ambient temperature can be positively correlated. Specifically, a correspondence between ambient temperature and target duration can be established in advance. This correspondence can take the form of a calculation formula, mapping relationship, etc., and the target duration corresponding to the secondary ambient temperature can be determined based on this correspondence. Different correspondences can be set for the cooling and heating operations of the heat pump system.

[0109] Specifically, in this embodiment, the target duration is determined based on a second temperature difference between the second ambient temperature and the set temperature of the indoor space, and the target duration is positively correlated with the second temperature difference. Hereinafter, E_TA_n is defined as the second temperature difference, and the process of determining the target duration T is illustrated using the cooling operation of a heat pump system as an example:

[0110] E_TA_n E_TA_n<1 1≤E_TA_n<3 E_TA_n≥3 T (seconds) 200 300 400

[0111] Specifically, determine the third numerical interval in the above mapping table where the second temperature difference value is located, and use the duration value mapped by the third numerical interval as the target duration.

[0112] The target duration can be understood as the update cycle of the target water supply temperature.

[0113] Step S50: After the target time interval, return to the step of obtaining at least two ambient temperatures of the indoor space regulated by the water system.

[0114] The target duration can be specifically calculated from the start time after the current target water supply temperature of the water system is adjusted according to the water temperature adjustment value.

[0115] Furthermore, one of the at least two ambient temperatures is the first ambient temperature of the indoor space detected before the current moment. Specifically, before step S50, the current second ambient temperature can be set as the new first ambient temperature. Based on this, the target water supply temperature can be adjusted next time based on the ambient temperature of the indoor space detected before and after the target duration.

[0116] In this embodiment, the target duration is determined based on the second ambient temperature, thereby ensuring that the update frequency of the target duration can accurately match the actual load of the indoor space, further improving the matching degree between the heat pump system output and the actual load, and thus further improving the energy efficiency of the equipment.

[0117] Furthermore, based on any of the above embodiments, another embodiment of the control method for the environmental conditioning equipment of this application is proposed. In this embodiment, reference is made to... Figure 7 S30 includes:

[0118] Step S31: Determine the target adjustment rate of the target water supply temperature based on the water temperature adjustment value;

[0119] The target adjustment rate is specifically the rate at which the target water supply temperature increases or decreases according to the water temperature adjustment value. In particular, the target adjustment rate is the temperature change per unit time during the process of increasing or decreasing the target water supply temperature.

[0120] Different water temperature adjustment values ​​correspond to different target adjustment rates. The correspondence between water temperature adjustment values ​​and target adjustment rates can be preset, and can take the form of calculation formulas, mapping relationships, etc. Based on this correspondence, the target adjustment rate corresponding to the current water temperature adjustment value can be determined.

[0121] The relationship between the water temperature adjustment value and the target adjustment rate can vary depending on the operating mode of the heat pump system. Therefore, the target correspondence between the water temperature adjustment value and the target adjustment rate can be determined based on the current operating mode of the heat pump system, and the target adjustment rate corresponding to the current water temperature adjustment value can be determined based on this target correspondence.

[0122] In one implementation of this embodiment, when the environmental conditioning device is in cooling operation, if the target water supply temperature corresponding to the water temperature adjustment value changes in a decreasing direction, then a first rate is determined as the target adjustment rate; if the target water supply temperature corresponding to the water temperature adjustment value changes in an increasing direction, then a second rate is determined as the target adjustment rate; the first rate is greater than the second rate.

[0123] In another implementation of this embodiment, when the environmental conditioning device is in heating mode, if the target water supply temperature corresponding to the water temperature adjustment value changes in a decreasing direction, then the third rate is determined as the target adjustment rate; if the target water supply temperature corresponding to the water temperature adjustment value changes in an increasing direction, then the fourth rate is determined as the target adjustment rate; the third rate is less than the fourth rate.

[0124] Step S32: Adjust the current target water supply temperature of the water system according to the target adjustment rate, and control the operation of the heat pump system according to the adjusted target water supply temperature.

[0125] Specifically, the target water supply temperature can be determined based on the water temperature adjustment value. For example, the sum of the water temperature adjustment value and the current target water supply temperature can be used as the target value. In this embodiment, the current target water supply temperature is adjusted according to the target adjustment rate to obtain a new target water supply temperature. The heat pump system is then controlled to operate according to the new target water supply temperature, and the process returns to the step of adjusting the current target water supply temperature according to the target adjustment rate until the current target water supply temperature of the water system reaches the target value. In other embodiments, the target value can also be the value obtained after adjusting the target water supply temperature according to a preset range.

[0126] In other embodiments, the current target water supply temperature can be adjusted according to the target adjustment rate to obtain a new target water supply temperature. The heat pump system is then controlled to operate according to the new target water supply temperature. The process of adjusting the current target water supply temperature according to the target adjustment rate is repeated until the target duration is reached.

[0127] In this embodiment, the target adjustment rate for the target supply water temperature is determined by the water temperature adjustment value. This allows the actual output changes of the heat pump system to precisely match the actual load changes in the indoor space during operation, based on the adjusted target supply water temperature, thereby further improving the energy efficiency of the equipment. Specifically, when the direction of change of the target supply water temperature corresponding to the water temperature adjustment value is conducive to improving the cooling or heating efficiency of the current heat exchange demand in the indoor space, a larger rate of adjustment is used. Conversely, when the direction of change of the target supply water temperature corresponding to the water temperature adjustment value is unfavorable to improving the cooling or heating efficiency of the current heat exchange demand in the indoor space, a smaller rate of adjustment is used. This approach helps to meet the indoor space temperature regulation needs while avoiding frequent start-ups and shutdowns of the environmental control equipment due to frequent temperature increases in the indoor space, thus improving both the energy efficiency and operational stability of the environmental control equipment.

[0128] Furthermore, based on any of the above embodiments, another embodiment of the control method for the environmental conditioning equipment of this application is proposed. After the step of adjusting the current target water supply temperature of the water system according to the water temperature adjustment value, the method further includes: if the adjusted target water supply temperature is less than or equal to a preset lower limit value of the target water supply temperature, then controlling the heat pump system to operate according to the preset lower limit value; if the adjusted target water supply temperature is greater than or equal to a preset upper limit value of the target water supply temperature, then controlling the heat pump system to operate according to the preset upper limit value; if the adjusted target water supply temperature is greater than the preset lower limit value and less than the preset upper limit value, then executing the step of controlling the heat pump system to operate according to the adjusted target water supply temperature.

[0129] The preset upper and lower limits here are parameters determined based on the reliable operation requirements of the heat pump system. The preset upper limit is greater than the preset lower limit.

[0130] Based on this, it can be ensured that the target water supply temperature of the water system is adapted to the actual load adjustment to improve equipment energy efficiency, while the adjusted target water supply temperature will not be too high or too low. It can operate within the preset upper and lower limits allowed by the equipment performance, so as to improve equipment energy efficiency and improve equipment operation reliability.

[0131] Furthermore, this invention also proposes a storage medium storing a control program for an environmental control device. When the control program for the environmental control device is executed by a processor, it implements the relevant steps of any of the above embodiments of the control method for the environmental control device.

[0132] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0133] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0134] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, environmental control device, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0135] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A control method for an environmental control device, characterized in that, The environmental control equipment includes a heat pump system and a water system connected to the heat pump system. The heat pump system is used to regulate the supply water temperature of the water system, and the water system is used to regulate the indoor temperature. The control method of the environmental control equipment includes the following steps: The system acquires at least two ambient temperatures of the indoor space regulated by the water system. The at least two ambient temperatures include a first ambient temperature detected before the current time and a second ambient temperature detected at the current time. The first temperature difference is the temperature difference between the first ambient temperature and the set temperature of the indoor space, and the second temperature difference is the temperature difference between the second ambient temperature and the set temperature of the indoor space. The temperature difference change value is determined based on the difference between the second temperature difference value and the first temperature difference value; The water temperature adjustment value is determined based on the second temperature difference value and the temperature difference change value; The target adjustment rate of the current target water supply temperature of the water system is determined based on the water temperature adjustment value. The target water supply temperature of the water system is adjusted according to the target adjustment rate, and the operation of the heat pump system is controlled according to the adjusted target water supply temperature.

2. The control method for the environmental control equipment as described in claim 1, characterized in that, The step of determining the water temperature adjustment value based on the second temperature difference value and the temperature difference change value includes: Determine the first numerical range in which the second temperature difference value lies, and determine the second numerical range in which the temperature difference change value lies; The water temperature adjustment value is determined based on the first numerical range and the second numerical range.

3. The control method for the environmental control equipment as described in claim 1, characterized in that, The step of determining the water temperature adjustment value based on the second temperature difference value and the temperature difference change value includes: When there is more than one indoor space, the indoor space with the largest value among all the second temperature difference values ​​corresponding to more than one indoor space is determined as the target space; The water temperature adjustment value is determined based on the second temperature difference value corresponding to the target space and the temperature difference change value.

4. The control method for the environmental control equipment as described in claim 1, characterized in that, After the steps of adjusting the current target water supply temperature of the water system according to the target adjustment rate and controlling the operation of the heat pump system according to the adjusted target water supply temperature, the method further includes: The target duration is determined based on the second ambient temperature. After the target time interval, return to the step of obtaining at least two ambient temperatures of the indoor space regulated by the water system.

5. The control method for the environmental control equipment as described in claim 4, characterized in that, The step of determining the target duration based on the second ambient temperature includes: The target duration is determined based on a second temperature difference between the second ambient temperature and the set temperature of the indoor space, and the target duration is positively correlated with the second temperature difference.

6. The control method for the environmental control equipment as described in claim 5, characterized in that, The step of determining the target adjustment rate of the current target water supply temperature of the water system based on the water temperature adjustment value includes: When the environmental control equipment is in cooling operation, if the target water supply temperature corresponding to the water temperature adjustment value changes in a decreasing direction, then the first rate is determined as the target adjustment rate; if the target water supply temperature corresponding to the water temperature adjustment value changes in an increasing direction, then the second rate is determined as the target adjustment rate; the first rate is greater than the second rate.

7. The control method for the environmental control equipment as described in claim 6, characterized in that, The step of determining the target adjustment rate of the current target water supply temperature of the water system based on the water temperature adjustment value includes: When the environmental control equipment is in heating operation, if the target water supply temperature corresponding to the water temperature adjustment value changes in a decreasing direction, then the third rate is determined as the target adjustment rate; if the target water supply temperature corresponding to the water temperature adjustment value changes in an increasing direction, then the fourth rate is determined as the target adjustment rate; the third rate is less than the fourth rate.

8. The control method for the environmental control equipment as described in any one of claims 1 to 7, characterized in that, After the step of adjusting the current target water supply temperature of the water system according to the target adjustment rate, the method further includes: If the adjusted target water supply temperature is less than or equal to a preset lower limit of the target water supply temperature, then the heat pump system is controlled to operate according to the preset lower limit. If the adjusted target water supply temperature is greater than or equal to the preset upper limit of the target water supply temperature, then the heat pump system is controlled to operate according to the preset upper limit. If the adjusted target water supply temperature is greater than the preset lower limit and less than the preset upper limit, then the step of controlling the operation of the heat pump system according to the adjusted target water supply temperature is executed.

9. An environmental control device, characterized in that, The environmental control equipment includes: Heat pump system; A water system connected to a heat pump system, wherein the heat pump system is used to regulate the water supply temperature of the water system and the water system is used to regulate the indoor temperature; A control device is provided, wherein both the heat pump system and the water system are connected to the control device. The control device includes: a memory, a processor, and a control program for an environmental conditioning device stored in the memory and executable on the processor. When the control program for the environmental conditioning device is executed by the processor, it implements the steps of the control method for the environmental conditioning device as described in any one of claims 1 to 8.

10. A storage medium, characterized in that, The storage medium stores a control program for an environmental control device, which, when executed by a processor, implements the steps of the control method for an environmental control device as described in any one of claims 1 to 8.

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