Heat pump equipment control method, device, heat pump equipment and storage medium

Abstract

This application provides a heat pump device control method, apparatus, heat pump device, and storage medium. The method includes: responding to a heat pump control command and starting up the number of compressors in the target heat pump device that matches the number of compressors in the heat pump control command; acquiring the current first water temperature difference of the target heat pump device; if the current first water temperature difference belongs to a first target temperature range, acquiring the current second water temperature difference; if the current second water temperature difference belongs to a second target temperature range, acquiring the current running time; if the current running time is greater than or equal to a corresponding target time threshold, adjusting the number of compressors currently running based on the current first water temperature difference and the current second water temperature difference. This application provides a heat pump device control method that can automatically adjust the number of compressors running in the heat pump device.

Description

Technical Field

[0001] This application relates to the field of electrical technology, specifically to a heat pump equipment control method, device, heat pump equipment, and storage medium. Background Art

[0002] Existing cascaded control methods for heat pump units use fixed start-up temperature differences and fixed energy regulation cycles to control the unit's start-up and shutdown. While the start-up temperature difference or time can be manually set on the online controller for different installation site sizes, it cannot achieve autonomous program adjustment and requires highly skilled engineering and commissioning technicians, resulting in excessively long installation and commissioning times for new units. Therefore, this problem needs to be solved. Summary of the Invention

[0003] This application provides a heat pump equipment control method that can automatically adjust the number of operating compressors in the heat pump equipment.

[0004] In a first aspect, this application provides a heat pump device control method, the method comprising:

[0005] In response to the heat pump control command, the compressor in the target heat pump device is turned on in a number matching the number of the heat pump control command;

[0006] Obtain the current first water temperature difference of the target heat pump device;

[0007] If the current first water temperature difference belongs to the first target temperature range, obtain the current second water temperature difference;

[0008] If the current second water temperature difference belongs to the second target temperature range, obtain the current running time;

[0009] If the current running time is greater than or equal to the corresponding target time threshold, the number of compressors currently running is adjusted according to the current first water temperature difference and the current second water temperature difference.

[0010] In some embodiments of this application, the first target temperature range includes a first unloading temperature range, a first loading temperature range, and a second loading temperature range; the second target temperature range includes a first temperature range and a second temperature range.

[0011] The step of adjusting the number of compressors currently in operation based on the first corresponding temperature range and the second corresponding temperature range includes:

[0012] If the current first water temperature difference belongs to the first unloading temperature range and the current second water temperature difference belongs to the first temperature range, reduce the number of N1 currently running compressors;

[0013] If the current first water temperature difference belongs to the first loading temperature range and the current second water temperature difference belongs to the second temperature range, increase the number of N2 currently running compressors;

[0014] If the current first water temperature difference belongs to the second loading temperature range and the current second water temperature difference belongs to the second temperature range range, increase the number of N3 currently running compressors.

[0015] In some embodiments of this application, after obtaining the current first water temperature difference of the target heat pump device, the method further includes:

[0016] If the current first water temperature difference belongs to the third target temperature range, obtain the current running time;

[0017] If the current running time is greater than or equal to the corresponding target time threshold, the number of compressors currently running is reduced based on the current first water temperature difference.

[0018] In some embodiments of this application, the third target temperature range includes a second unloading temperature range and a third unloading temperature range;

[0019] The step of reducing the number of operating compressors based on the current first water temperature difference includes:

[0020] If the current first water temperature difference belongs to the second unloading temperature range, reduce the number of N4 currently running compressors;

[0021] If the current first water temperature difference belongs to the third unloading temperature range, reduce the number of N5 currently running compressors.

[0022] In some embodiments of this application, after obtaining the current first water temperature difference of the target heat pump device, the method further includes:

[0023] If the current first water temperature difference belongs to the fourth target temperature range, maintain the number of compressors currently in operation.

[0024] In some embodiments of this application, the first target temperature range includes a first dynamic temperature range, and the corresponding target time threshold includes a corresponding dynamic time threshold;

[0025] After adjusting the number of compressors currently in operation, the method further includes:

[0026] Determine the number of times the compressor operating quantity of the currently running compressor will be adjusted within the target period;

[0027] If the number of adjustments is greater than or equal to the first target number threshold, or if the number of adjustments is less than or equal to the second target number threshold, adjust the range of the first dynamic temperature range and the threshold value of the corresponding dynamic time threshold.

[0028] In some embodiments of this application, before the current running time is greater than or equal to the corresponding target time threshold, the method further includes:

[0029] The corresponding target time threshold is determined based on the first target temperature range and / or the second target temperature range.

[0030] Secondly, this application also provides a heat pump equipment control device, the device comprising:

[0031] The control module is used to respond to heat pump control commands and start the compressors in the target heat pump equipment that match the number of heat pump control commands.

[0032] The acquisition module is used to acquire the current first water temperature difference of the target heat pump device;

[0033] The acquisition module is further configured to acquire the current second water temperature difference if the current first water temperature difference belongs to the first target temperature range;

[0034] The acquisition module is also used to acquire the current running time if the current second water temperature difference belongs to the second target temperature range;

[0035] The control module is also used to adjust the number of compressors currently running based on the current first water temperature difference and the current second water temperature difference if the current running time is greater than or equal to the corresponding target time threshold.

[0036] Thirdly, this application also provides a heat pump device, the heat pump device including a processor, a memory, and a computer program stored in the memory and executable on the processor, the processor executing the computer program to implement the steps in any of the heat pump device control methods described above.

[0037] Fourthly, this application also provides a computer-readable storage medium storing a computer program that is executed by a processor to implement the steps in any of the heat pump device control methods described above.

[0038] The heat pump equipment control method provided in this application can first determine the number of compressors to be started based on control commands. Then, it can acquire the current first water temperature difference in real time and obtain the current second water temperature difference based on the first water temperature difference. Next, it determines the corresponding target time threshold based on the current first and second water temperature differences. If the current running time exceeds the target time threshold, the number of currently running compressors can be adjusted, achieving intelligent start-stop of the compressors. This avoids wasting resources by having too many compressors running simultaneously, and also avoids insufficient compressor operation to meet user needs. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of a heat pump equipment control system provided in an embodiment of this application;

[0041] Figure 2 This is a schematic flowchart of one embodiment of the heat pump equipment control method in this application.

[0042] Figure 3 This is a schematic diagram of one embodiment of the heat pump equipment control device in this application.

[0043] Figure 4 This is a schematic diagram of one embodiment of the heat pump device in this application. DETAILED DESCRIPTION

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0046] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. Furthermore, it is understood that in the specific embodiments of this application, user information, user data, and other related data are involved. When the above embodiments of this application are applied to specific products or technologies, user permission or consent is required, and the collection, use, and processing of related data must comply with the relevant laws, regulations, and standards of the relevant countries and regions.

[0047] To enable any person skilled in the art to implement and use this application, the following description is provided. In this description, details are set forth for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0048] This application provides a heat pump equipment control method, apparatus, device, and storage medium, which are described in detail below.

[0049] Please see Figure 1 , Figure 1 This is a schematic diagram of a heat pump device control system provided in an embodiment of this application. The heat pump device control system may include a heat pump device 100 and a storage device 200, and the storage device 200 includes a corresponding control program. Figure 1 The heat pump device 100 in the storage device 200 can execute the heat pump device control method of this application according to the control program stored in the storage device 200.

[0050] In the embodiments of this application, the heat pump device 100 and the storage device 200 can communicate through any communication method, including but not limited to mobile communication based on the 3rd Generation Partnership Project (3GPP), Long Term Evolution (LTE), and Worldwide Interoperability for Microwave Access (WiMAX), or computer network communication based on the TCP / IP Protocol Suite (TCP / IP) and User Datagram Protocol (UDP). It should be noted that the storage device 200 can also be built into the heat pump device 100; specific embodiments of this application are not limited to this.

[0051] It should be noted that, Figure 1 The schematic diagram of the heat pump equipment control system shown is merely an example. The heat pump equipment control system and scenario described in this application are intended to more clearly illustrate the technical solutions of this application and do not constitute a limitation on the technical solutions provided in this application. As those skilled in the art will know, with the evolution of heat pump equipment control systems and the emergence of new business scenarios, the technical solutions provided in this application are also applicable to similar technical problems.

[0052] like Figure 2 As shown, Figure 2 This is a schematic flowchart of one embodiment of the heat pump equipment control method in this application. The heat pump equipment control method may include the following steps 201 to 205:

[0053] 201. In response to the heat pump control command, start the compressor in the target heat pump equipment that matches the number of heat pump control commands.

[0054] In this embodiment, the heat pump control command can be issued by the user through a corresponding control device, such as a control panel or remote control. After the user issues the heat pump control command, for example, setting the set temperature of the heat pump device to 26 degrees Celsius, the target heat pump device can, based on the control command, start the number of compressors matching the control command to execute the control command. For example, starting three compressors to execute the control command to set the set temperature to 26 degrees Celsius. Of course, the specific number of compressors to be started depends on the power of the compressors. Different heat pump devices are equipped with different compressors, and the specific number can be determined according to the actual situation. This embodiment does not limit this number.

[0055] 202. Obtain the current first water temperature difference of the target heat pump equipment.

[0056] It should be noted that when a heat pump device controls the ambient temperature, it does so through the water within the heat pump. When the heat pump device has a liquid cooling function, it can cool the water using a compressor, and then deliver it to the space requiring cooling through pipes. Therefore, the heat pump device in this application embodiment does not refer solely to a heat pump device that only includes a heating mode.

[0057] Based on this, in this embodiment of the application, the current first water temperature difference can be the temperature difference between the current pipe water temperature and the set temperature. If it is a cooling mode, the current first water temperature difference is the temperature difference between the current pipe water temperature and the set temperature; if it is a heating mode, the current first water temperature difference is the temperature difference between the set temperature and the current pipe water temperature.

[0058] To obtain the current first water temperature difference, a temperature sensor can be installed in the pipeline to obtain the current water temperature. Then, based on the user's control commands, the set temperature is determined. Finally, the difference between these two temperatures is calculated to obtain the current first water temperature difference.

[0059] 203. If the current first water temperature difference belongs to the first target temperature range, obtain the current second water temperature difference.

[0060] Once the current first water temperature difference is obtained, if the current second water temperature difference needs to be obtained, the current first water temperature difference needs to be judged. If the current first water temperature difference belongs to the first target temperature range, then the current second water temperature difference is obtained.

[0061] The current second water temperature difference can be obtained by comparing the water temperatures in the first and second pipes. The first pipe water temperature can be the water temperature at a first location within the heat pump equipment's piping, and the second pipe water temperature can be the water temperature at a second location within the heat pump equipment's piping. Furthermore, in cooling mode, this current second water temperature difference is the temperature difference between the first and second pipe water temperatures; in heating mode, it is the temperature difference between the second and first pipe water temperatures. The first and second pipe water temperatures can be obtained by installing corresponding temperature sensors at the first and second locations.

[0062] 204. If the current second water temperature difference belongs to the second target temperature range, obtain the current running time.

[0063] In this embodiment, the current running time is the total running time after the heat pump equipment is started. To obtain the current running time, it is necessary to determine the current second water temperature difference; only if it falls within the second target temperature range is the current running time obtained.

[0064] 205. If the current running time is greater than or equal to the corresponding target time threshold, adjust the number of compressors currently running based on the current first water temperature difference and the current second water temperature difference.

[0065] In this embodiment, the target time threshold can be a pre-defined time threshold. If the current running time is greater than or equal to the target time threshold, and the current first water temperature difference and the current second water temperature difference belong to a certain target temperature range, the number of currently running compressors can be adjusted. For example, if both the current first water temperature difference and the current second water temperature difference belong to the target temperature range for reducing the number of compressors, the number of currently running compressors can be reduced; or, if both the current first water temperature difference and the current second water temperature difference belong to the target temperature range for increasing the number of compressors, the number of currently running compressors can be increased. The specific increase or decrease can be set according to the actual situation, such as increasing or decreasing the number of running compressors by one. Then, it is checked whether the adjusted number of compressors can meet the user's needs. If not, the adjustment can continue according to the above scheme.

[0066] The heat pump equipment control method provided in this application can first determine the number of compressors to be started based on control commands. Then, it can acquire the current first water temperature difference in real time and obtain the current second water temperature difference based on the first water temperature difference. Next, it determines the corresponding target time threshold based on the current first and second water temperature differences. If the current running time exceeds the target time threshold, the number of currently running compressors can be adjusted, achieving intelligent start-stop of the compressors. This avoids wasting resources by having too many compressors running simultaneously, and also avoids insufficient compressor operation to meet user needs.

[0067] To better implement the embodiments of this application, in one embodiment of this application, the first target temperature range includes a first unloading temperature range, a first loading temperature range, and a second loading temperature range; the second target temperature range includes a first temperature range range and a second temperature range range.

[0068] Based on the first and second corresponding temperature ranges, adjust the number of compressors currently in operation, including:

[0069] If the current first water temperature difference belongs to the first unloading temperature range and the current second water temperature difference belongs to the first temperature range, reduce the number of N1 currently running compressors; if the current first water temperature difference belongs to the first loading temperature range and the current second water temperature difference belongs to the second temperature range, increase the number of N2 currently running compressors; if the current first water temperature difference belongs to the second loading temperature range and the current second water temperature difference belongs to the second temperature range, increase the number of N3 currently running compressors.

[0070] The above embodiments provide a scheme for adjusting the number of currently operating compressors based on target temperature ranges for increasing and decreasing quantities. This application also provides a control scheme, as detailed in the preceding paragraphs. Here, the first unloading temperature range, the first loading temperature range, and the second loading temperature range are all distinct temperature ranges; the first temperature range range and the second temperature range range are also distinct temperature ranges. For example, the first unloading temperature range can be (-1, 0], the first loading temperature range can be (a, a+4], and the second loading temperature range can be (a+4, +∞); the first temperature range range can be (-∞, b], and the second temperature range range can be [b, +∞].

[0071] Furthermore, N1, N2, and N3 can be different from each other, where N1 can be 3, N2 can be 1, and N3 can be 2. Similarly, the specific numbers of N1, N2, and N3 can be set according to the actual situation, and this application embodiment does not limit them.

[0072] To better implement the embodiments of this application, in one embodiment of this application, after obtaining the current first water temperature difference of the target heat pump device, the method further includes:

[0073] If the current first water temperature difference falls within the third target temperature range, obtain the current running time; if the current running time is greater than or equal to the corresponding target time threshold, reduce the number of compressors currently running based on the current first water temperature difference.

[0074] The above embodiment provides a scheme for controlling the number of compressors operating based on the current first water temperature difference and the current second water temperature difference. However, in different situations, the number of compressors can be controlled without considering the current second water temperature difference. Therefore, if the current second water temperature difference is not needed, the number of compressors operating can be controlled directly based on the current first water temperature difference.

[0075] Specifically, if the current first water temperature difference falls within the third target temperature range but not the first target temperature range, then it's unnecessary to obtain the current second water temperature difference; instead, the current running time can be directly obtained. After obtaining the current running time, the judgment method can be the same as in the above embodiment, and will not be elaborated here. Specifically, controlling the number of operating compressors based solely on the current first water temperature difference can simply involve reducing the number of operating compressors, without distinguishing whether the first water temperature difference is within the target temperature range for increasing or decreasing the number of compressors. Reducing the number of currently operating compressors can also mean reducing the number of currently operating compressors by one. If, after further reduction, the user's needs are still not met, the judgment process continues.

[0076] To better implement the embodiments of this application, in one embodiment of this application, the third target temperature range includes a second unloading temperature range and a third unloading temperature range;

[0077] Based on the current first water temperature difference, reduce the number of compressors currently in operation, including:

[0078] If the current first water temperature difference falls within the second unloading temperature range, reduce the number of N4 currently running compressors; if the current first water temperature difference falls within the third unloading temperature range, reduce the number of N5 currently running compressors.

[0079] The above embodiments provide a scheme for determining the number of compressors in operation based solely on the current first water temperature difference. This application also provides a refined scheme above a third target temperature range. Specifically, the third target temperature range may include a second unloading temperature range and a third unloading temperature range. The second unloading temperature range can be (-∞, -2], and the third unloading temperature range can be (-2, -1). N4 and N5 can also be different; their specific values ​​can be set according to actual conditions, and this application does not impose any limitations.

[0080] To better implement the embodiments of this application, in one embodiment of this application, after obtaining the current first water temperature difference of the target heat pump device, the method further includes:

[0081] If the current first water temperature difference belongs to the fourth target temperature range, maintain the number of compressors currently in operation.

[0082] The above embodiments provide a scheme for adjusting the number of currently running compressors. However, in practice, there are also cases where the system is operating normally, i.e., cases where adjusting the number of currently running compressors is not necessary. In this case, after obtaining the current first water temperature difference, if the current first water temperature difference is within the fourth target temperature range, the number of running compressors is not adjusted. The fourth target temperature range can be (0, a).

[0083] To better implement the embodiments of this application, in one embodiment of this application, the first target temperature range includes a first dynamic temperature range, and the corresponding target time threshold includes a corresponding dynamic time threshold;

[0084] After adjusting the number of compressors currently in operation, the method also includes:

[0085] Determine the number of times to adjust the number of compressors currently in operation within the target period; if the number of adjustments is greater than or equal to the first target number threshold or less than or equal to the second target number threshold, adjust the range of the first dynamic temperature range and the threshold value of the corresponding dynamic time threshold.

[0086] In the above embodiments, a coefficient 'a' is included in a portion of the temperature range. This coefficient 'a' can be a fixed value or a dynamic value. If the coefficient 'a' is a dynamic value, then the corresponding temperature range is a dynamic temperature range. Therefore, the first dynamic temperature range may include the fourth target temperature range, the first loading temperature range, and the second loading temperature range.

[0087] The adjustment of coefficient 'a' can be achieved in several ways: If the unit's loading and unloading operations occur three or more times within an hour, it indicates that the unit's output capacity is less than the actual load consumption. In this case, the temperature difference range and control time should be increased, and the value of 'a' is incremented by 1 degree Celsius. The cumulative number of operations is then reset to zero, and the system waits for the next hour's assessment. Conversely, if the system is too stable, allowing a particular compressor to run continuously without rotation is detrimental to balanced control. Therefore, if the system has not performed any loading or unloading operations within an hour, the temperature difference range and control time should be reduced, and the value of 'a' is decreased by 1 degree Celsius. By adaptively adjusting the value of 'a', the system eventually reaches a relatively balanced state. Here, 3 operations represent the target threshold number. However, it should be noted that the target threshold number can also be set according to actual conditions, and this embodiment does not impose such a limitation.

[0088] To better implement the embodiments of this application, in one embodiment of this application, if the current running time is greater than or equal to the corresponding target time threshold, the method further includes:

[0089] Determine the corresponding target time threshold based on the first target temperature range and / or the second target temperature range.

[0090] The above embodiments provide a scheme where the target time threshold is a fixed value. However, in this application, we also provide a scheme where the target time threshold is multiple or a dynamic value. Details are shown in Table 1 below:

[0091] Interval 1 Interval 2 Interval 3 Interval 4 Interval 5 Interval 6 <![CDATA[①T1]]> ≤-2 (-2，-1] (-1，0] (0，a] (a, a+4) ＞a+4 <![CDATA[②T2]]> / / ≥b / ≤b ≤b ③Time c d e / e f ④ Actions uninstall uninstall uninstall maintain load load

[0092] Table 1

[0093] In Table 1, T1 represents the current first water temperature difference; T2 represents the current second water temperature difference; Time represents the target time threshold; and c, d, e, and f represent the target time thresholds corresponding to different conditions. The target time threshold is determined based on the first and / or second target temperature ranges, which can be found in Table 1. It should be noted that the unit for temperature parameters can be degrees Celsius, and the unit for time parameters can be seconds.

[0094] In summary, when the unit is started, the number of compressors that need to be turned on is first calculated based on the current energy demand, and the system enters open-loop control. After all the compressors that need to be turned on are turned on, the system enters closed-loop control: the difference between the current set temperature and the actual water temperature is calculated periodically to determine which zone it falls into. Once the calculation zone is determined, if conditions ①②③ are met simultaneously, action ④ is executed; otherwise, it is not executed.

[0095] Among them, the values ​​of a, b, and e are adjustable, while the values ​​of c, d, and f are fixed. The value of b is determined by the factory EE parameter and can also be changed later on the online controller, but it is not adjusted adaptively by the program.

[0096] The significance of condition ②:

[0097] 1. Overshoot prevention: If the current energy cycle calculation indicates that loading is required, the change in water temperature needs to be judged at the same time. When the system water temperature changes from a downward trend to an upward trend (heating), it proves that the heat generated by the unit is sufficient and there is no need to load another compressor.

[0098] 2. Prevent over-unloading: After the unit's capacity increases and the water temperature approaches the set temperature, if the water temperature change value is insufficient in one energy regulation cycle when in zone 3, it indicates that the capacity is not sufficient and unloading should not be performed.

[0099] Meanwhile, the adjustment method for 'e' is the same as that for 'a'. For example, the 'e' value is adaptively corrected through the program. When the unit's loading and unloading operations are greater than or equal to 3 times per hour, it indicates that the unit's output capacity is less than the actual load consumption, and the temperature difference range and control time should be increased. In this case, the 'e' value is increased by 60 seconds, the cumulative number of operations is reset to zero, and the system waits for the next hour's assessment. When the system is too stable, allowing a certain compressor to run for a long time without rotation is not conducive to balanced control. Therefore, if the system has not performed a single loading or unloading operation in an hour, the temperature difference range and control time need to be reduced, and the 'e' value is decreased by 60 seconds. Through continuous adaptive adjustment of the 'e' value, the system eventually reaches a relatively balanced state.

[0100] To better implement the heat pump device control method in the embodiments of this application, based on the heat pump device control method, such as... Figure 3 As shown, the device 300 includes:

[0101] Control module 301 is used to respond to heat pump control commands and start the compressor in the target heat pump equipment that matches the number of heat pump control commands;

[0102] The acquisition module 302 is used to acquire the current first water temperature difference of the target heat pump device;

[0103] The acquisition module 302 is also used to acquire the current second water temperature difference if the current first water temperature difference belongs to the first target temperature range;

[0104] The acquisition module 302 is also used to acquire the current running time if the current second water temperature difference belongs to the second target temperature range;

[0105] The control module 301 is also used to adjust the number of compressors currently running based on the current first water temperature difference and the current second water temperature difference if the current running time is greater than or equal to the corresponding target time threshold.

[0106] The heat pump equipment control device provided in this application can first determine the number of compressors to be started according to control commands via control module 301. Then, it can acquire the current first water temperature difference in real time via acquisition module 302, and acquire the current second water temperature difference based on the first water temperature difference. Next, it determines the corresponding target time threshold based on the current first and second water temperature differences. If the current running time exceeds the target time threshold, the number of currently running compressors can be adjusted via control module 301, achieving intelligent start-stop of the compressors. This avoids wasting resources by having too many compressors running simultaneously, and also avoids insufficient compressor operation to meet user needs.

[0107] In some embodiments of this application, the first target temperature range includes a first unloading temperature range, a first loading temperature range, and a second loading temperature range; the second target temperature range includes a first temperature range and a second temperature range; the control module 301 is specifically used for:

[0108] If the current first water temperature difference belongs to the first unloading temperature range and the current second water temperature difference belongs to the first temperature range, reduce the number of N1 currently running compressors;

[0109] If the current first water temperature difference belongs to the first loading temperature range and the current second water temperature difference belongs to the second temperature range, increase the number of N2 currently running compressors;

[0110] If the current first water temperature difference belongs to the second loading temperature range and the current second water temperature difference belongs to the second temperature range, increase the number of N3 currently running compressors.

[0111] In some embodiments of this application, the control module 301 is further configured to:

[0112] If the current first water temperature difference belongs to the third target temperature range, obtain the current running time;

[0113] If the current running time is greater than or equal to the corresponding target time threshold, reduce the number of compressors currently running based on the current first water temperature difference.

[0114] In some embodiments of this application, the third target temperature range includes the second unloading temperature range and the third unloading temperature range; the control module 301 is further configured to:

[0115] If the current first water temperature difference falls within the second unloading temperature range, reduce the number of N4 currently running compressors;

[0116] If the current first water temperature difference falls within the third unloading temperature range, reduce the number of N5 currently running compressors.

[0117] In some embodiments of this application, the control module 301 is further configured to:

[0118] If the current first water temperature difference belongs to the fourth target temperature range, maintain the number of compressors currently in operation.

[0119] In some embodiments of this application, the first target temperature range includes a first dynamic temperature range, and the corresponding target time threshold includes a corresponding dynamic time threshold; the control module 301 is further specifically used for:

[0120] Determine the number of adjustments needed for the number of compressors currently in operation within the target period;

[0121] If the number of adjustments is greater than or equal to the first target number threshold, or the number of adjustments is less than or equal to the second target number threshold, adjust the range of the first dynamic temperature range and the threshold value of the corresponding dynamic time threshold.

[0122] In some embodiments of this application, the control module 301 is further configured to:

[0123] Determine the corresponding target time threshold based on the first target temperature range and / or the second target temperature range.

[0124] This application also provides a heat pump device, which includes a processor, a memory, and a computer program stored in the memory and executable on the processor. The processor executes the computer program to implement the steps of the heat pump device control method according to any one of the embodiments of this application. This heat pump device integrates any one of the heat pump device control methods provided in the embodiments of this application, such as... Figure 4 As shown, it illustrates a structural schematic diagram of the heat pump equipment involved in the embodiments of this application. Specifically:

[0125] The heat pump device may include components such as a processor 401 with one or more processing cores, a memory 402 with one or more computer-readable storage media, a power supply 403, and an input unit 404. Those skilled in the art will understand that... Figure 4 The heat pump device structure shown does not constitute a limitation on the heat pump device and may include more or fewer components than shown, or combine certain components, or have different component arrangements. Wherein:

[0126] The processor 401 is the control center of the heat pump device. It connects various parts of the heat pump device via various interfaces and lines. By running or executing software programs and / or modules stored in the memory 402, and by calling data stored in the memory 402, it performs various functions and processes data of the heat pump device, thereby providing overall monitoring of the heat pump device. Optionally, the processor 401 may include one or more processing cores. The processor 401 may be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor. Preferably, the processor 401 may integrate an application processor and a modem processor. The application processor mainly handles the operating system, user interface, and application programs, while the modem processor mainly handles wireless communication. It is understandable that the aforementioned modem processor may not be integrated into processor 401.

[0127] The memory 402 can be used to store software programs and modules. The processor 401 executes various functional applications and data processing by running the software programs and modules stored in the memory 402. The memory 402 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, application programs required for at least one function (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created based on the use of the heat pump device, etc. In addition, the memory 402 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory 402 may also include a memory controller to provide the processor 401 with access to the memory 402.

[0128] The heat pump device also includes a power supply 403 that supplies power to the various components. Preferably, the power supply 403 can be logically connected to the processor 401 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The power supply 403 may also include one or more DC or AC power supplies, recharging systems, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0129] The heat pump device may also include an input unit 404, which can be used to receive input digital or character information, and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0130] Although not shown, the heat pump device may also include a display unit, etc., which will not be described in detail here. Specifically, in this embodiment, the processor 401 in the heat pump device loads the executable files corresponding to the processes of one or more application programs into the memory 402 according to the following instructions, and the processor 401 runs the application programs stored in the memory 402 to realize various functions, such as:

[0131] In response to heat pump control commands, start the compressors in the target heat pump equipment that match the number of heat pump control commands;

[0132] Obtain the current first water temperature difference of the target heat pump device;

[0133] If the current first water temperature difference belongs to the first target temperature range, obtain the current second water temperature difference;

[0134] If the current second water temperature difference falls within the second target temperature range, obtain the current running time;

[0135] If the current running time is greater than or equal to the corresponding target time threshold, adjust the number of compressors currently running based on the current first water temperature difference and the current second water temperature difference.

[0136] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by instructions, or by instructions controlling related hardware. These instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0137] Therefore, embodiments of this application provide a computer-readable storage medium, which may include: read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk, etc. A computer program is stored thereon, and the computer program is loaded by a processor to execute the steps in any of the heat pump device control methods provided in embodiments of this application. For example, the computer program loaded by the processor can execute the following steps:

[0138] In response to heat pump control commands, start the compressors in the target heat pump equipment that match the number of heat pump control commands;

[0139] Obtain the current first water temperature difference of the target heat pump device;

[0140] If the current first water temperature difference belongs to the first target temperature range, obtain the current second water temperature difference;

[0141] If the current second water temperature difference falls within the second target temperature range, obtain the current running time;

[0142] If the current running time is greater than or equal to the corresponding target time threshold, adjust the number of compressors currently running based on the current first water temperature difference and the current second water temperature difference.

[0143] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the detailed descriptions of other embodiments above, which will not be repeated here.

[0144] In practice, each of the above units or structures can be implemented as an independent entity or can be arbitrarily combined to be implemented as the same or several entities. For the specific implementation of each of the above units or structures, please refer to the previous method embodiments, which will not be repeated here.

[0145] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0146] The above provides a detailed description of a heat pump equipment control method and apparatus provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A control method for a heat pump device, characterized in that, The method includes: In response to the heat pump control command, the compressor in the target heat pump device is turned on in a number matching the number of the heat pump control command; Obtain the current first water temperature difference of the target heat pump device; If the current first water temperature difference belongs to the first target temperature range, obtain the current second water temperature difference; If the current second water temperature difference belongs to the second target temperature range, obtain the current running time; If the current running time is greater than or equal to the corresponding target time threshold, the number of compressors currently running is adjusted according to the current first water temperature difference and the current second water temperature difference.

2. The heat pump equipment control method according to claim 1, characterized in that, The first target temperature range includes a first unloading temperature range, a first loading temperature range, and a second loading temperature range; the second target temperature range includes a first temperature range and a second temperature range. The step of basing the current first water temperature difference and the current second water temperature difference includes: If the current first water temperature difference belongs to the first unloading temperature range and the current second water temperature difference belongs to the first temperature range, reduce the number of N1 currently running compressors; If the current first water temperature difference belongs to the first loading temperature range and the current second water temperature difference belongs to the second temperature range, increase the number of N2 currently running compressors; If the current first water temperature difference belongs to the second loading temperature range and the current second water temperature difference belongs to the second temperature range range, increase the number of N3 currently running compressors.

3. The heat pump equipment control method according to claim 1, characterized in that, After obtaining the current first water temperature difference of the target heat pump device, the method further includes: If the current first water temperature difference belongs to the third target temperature range, obtain the current running time; If the current running time is greater than or equal to the corresponding target time threshold, the number of compressors currently running is reduced based on the current first water temperature difference.

4. The heat pump equipment control method according to claim 3, characterized in that, The third target temperature range includes the second unloading temperature range and the third unloading temperature range; The step of reducing the number of operating compressors based on the current first water temperature difference includes: If the current first water temperature difference belongs to the second unloading temperature range, reduce the number of N4 currently running compressors; If the current first water temperature difference belongs to the third unloading temperature range, reduce the number of N5 currently running compressors.

5. The heat pump equipment control method according to claim 1, characterized in that, After obtaining the current first water temperature difference of the target heat pump device, the method further includes: If the current first water temperature difference belongs to the fourth target temperature range, maintain the number of compressors currently in operation.

6. The heat pump equipment control method according to claim 1, characterized in that, The first target temperature range includes a first dynamic temperature range, and the corresponding target time threshold includes a corresponding dynamic time threshold; After adjusting the number of compressors currently in operation, the method further includes: Determine the number of times the compressor operating quantity of the currently running compressor will be adjusted within the target period; If the number of adjustments is greater than or equal to the first target number threshold, or if the number of adjustments is less than or equal to the second target number threshold, adjust the range of the first dynamic temperature range and the threshold value of the corresponding dynamic time threshold.

7. The heat pump equipment control method according to any one of claims 1 to 6, characterized in that, If the current running time is greater than or equal to the corresponding target time threshold, the method further includes: The corresponding target time threshold is determined based on the first target temperature range and / or the second target temperature range.

8. A heat pump equipment control device, characterized in that, The device includes: The control module is used to respond to heat pump control commands and start the compressors in the target heat pump equipment that match the number of heat pump control commands. The acquisition module is used to acquire the current first water temperature difference of the target heat pump device; The acquisition module is further configured to acquire the current second water temperature difference if the current first water temperature difference belongs to the first target temperature range; The acquisition module is also used to acquire the current running time if the current second water temperature difference belongs to the second target temperature range; The control module is also used to adjust the number of compressors currently running based on the current first water temperature difference and the current second water temperature difference if the current running time is greater than or equal to the corresponding target time threshold.

9. A heat pump device, characterized in that, The heat pump device includes a processor, a memory, and a computer program stored in the memory and executable on the processor, the processor executing the computer program to implement the steps of the heat pump device control method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that is executed by a processor to implement the steps of the heat pump device control method according to any one of claims 1 to 7.

Images