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

Abstract

The invention provides a heat pump equipment control method and device, heat pump equipment and a storage medium, and the method comprises the steps that heat pump control instructions are responded, and compressors, matched with the heat pump control instructions in number, in target heat pump equipment are started; the current first water temperature difference of the target heat pump equipment is obtained; if the current first water temperature difference belongs to the first target temperature interval, acquiring a current second water temperature difference; if the current second water temperature difference belongs to a second target temperature interval, current operation time is obtained; and if the current operation time is larger than or equal to the corresponding target time threshold value, the compressor operation number of the currently-operated compressors is adjusted according to the current first water temperature difference and the current second water temperature difference. The invention provides a heat pump equipment control method. According to the method, the number of running compressors in heat pump equipment can be automatically adjusted.

Description

Technical Field

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

[0002] The existing cascade control method of heat pump units uses a fixed starting temperature difference and a fixed energy adjustment cycle time to control the start and stop of the unit. For different installation site sizes, although the starting temperature difference or time can be manually set on the online controller, the program cannot be adjusted autonomously, and the requirements for engineering commissioning technicians are high, which will make the installation and commissioning time of new units too long. Therefore, it is necessary to solve this problem. Summary of the invention

[0003] The present application provides a heat pump equipment control method, which can automatically adjust the number of operating compressors in the heat pump equipment.

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

[0005] In response to the heat pump control instruction, start the compressors in the target heat pump device that match the number of the heat pump control instructions;

[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, obtaining the current second water temperature difference;

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

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

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

[0011] The step of adjusting the number of compressors currently running according to the first corresponding temperature interval and the second corresponding temperature interval includes:

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

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

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

[0015] In some embodiments of the present 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 interval, obtaining the current running time;

[0017] If the current operating time is greater than or equal to the corresponding target time threshold, the compressor operation quantity of the currently operating compressor is reduced according to the current first water temperature difference.

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

[0019] The reducing the number of compressors currently running according to the current first water temperature difference comprises:

[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 interval, the number of currently running compressors is reduced by N5.

[0022] In some embodiments of the present 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, the compressor operation quantity of the currently operating compressor is maintained.

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

[0025] After adjusting the compressor operation quantity of the currently operating compressor, the method further includes:

[0026] determining a number of adjustments to the compressor operation quantity of the currently operating compressor within a target period;

[0027] If the adjustment times are greater than or equal to the first target times threshold or the adjustment times are less than or equal to the second target times threshold, the interval range of the first dynamic temperature interval and the threshold value of the corresponding dynamic time threshold are adjusted.

[0028] In some implementations of the present application, if 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 according to the first target temperature interval and / or the second target temperature interval.

[0030] In a second aspect, the present application further provides a heat pump equipment control device, the device comprising:

[0031] A control module, for responding to a heat pump control instruction and starting compressors in a target heat pump device that match the number of the heat pump control instructions;

[0032] An acquisition module, used to acquire a current first water temperature difference of a target heat pump device;

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

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

[0035] The control module is further configured to adjust the compressor operation quantity of the currently operating compressor according to the current first water temperature difference and the current second water temperature difference if the current operation time is greater than or equal to the corresponding target time threshold.

[0036] In a third aspect, the present application also provides a heat pump device, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps in any one of the heat pump device control methods.

[0037] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program is executed by a processor to implement the steps in any one of the heat pump device control methods.

[0038] The heat pump equipment control method provided in the present application can first determine the number of compressors that need to be started according to the control instructions. After that, the current first water temperature difference can be obtained in real time, and the current second water temperature difference can be obtained according to the current first water temperature difference. Then, the corresponding target time threshold is determined according to the current first water temperature difference and the current second water temperature difference. If the current operating time exceeds the target time threshold, the number of running compressors currently in operation can be adjusted, realizing the intelligent start and stop of the compressor, avoiding the waste of resources caused by too many compressors running at the same time, and also avoiding the situation where too few compressors are running and cannot meet the needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the 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 work.

[0040] Figure 1 is a schematic diagram of a scenario of a heat pump device control system provided in an embodiment of the present application;

[0041] Figure 2 This is a flow chart of an embodiment of a heat pump device control method in an embodiment of the present application;

[0042] Figure 3 It is a schematic diagram of the structure of an embodiment of a heat pump device control device in an embodiment of the present application;

[0043] Figure 4 It is a schematic diagram of the structure of a heat pump device in an embodiment of the present application. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

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

[0046] In this application, the word "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. At the same time, it is to be understood that in the specific implementation of this application, when 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 relevant data shall comply with relevant laws, regulations and standards of relevant countries and regions.

[0047] In order to enable any person skilled in the art to implement and use the present application, the following description is provided. In the following description, details are listed for the purpose of explanation. It should be understood that those of ordinary skill in the art will recognize that the present application can be implemented without using these specific details. In other examples, known structures and processes will not be elaborated in detail to avoid unnecessary details that make the description of the present application obscure. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest range of principles and features disclosed in the present application.

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

[0049] See also Figure 1 , Figure 1 Schematic diagram of a heat pump device control system provided in an embodiment of the present application. The heat pump device control system may include a heat pump device 100 and a storage device 200. The storage device 200 includes a corresponding control program. Figure 1 The heat pump device 100 in the present application can execute the heat pump device control method in accordance with the control program stored in the storage device 200.

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

[0051] It should be noted that Figure 1 The scenario diagram of the heat pump equipment control system shown is only an example. The heat pump equipment control system and scenario described in the embodiment of the present application are intended to more clearly illustrate the technical solution of the embodiment of the present application, and do not constitute a limitation on the technical solution provided in the embodiment of the present application. A person of ordinary skill in the art can know that with the evolution of the heat pump equipment control system and the emergence of new business scenarios, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

[0052] like Figure 2 As shown, Figure 2 This is a flow chart of an embodiment of a heat pump device control method in an embodiment of the present application. The heat pump device control method may include the following steps 201 to 205:

[0053] 201. In response to a heat pump control instruction, start compressors in a target heat pump device whose number matches the heat pump control instruction.

[0054] In the embodiment of the present application, the heat pump control instruction can be issued by the user through the corresponding control device, such as a control panel, a remote control, etc. After the user issues the heat pump control instruction, for example, the set temperature of the heat pump device is set to 26 degrees, the target heat pump device can start the number of compressors matching the control instruction based on the control instruction to execute the control instruction, for example, start 3 compressors to execute the control instruction with the set temperature set to 26 degrees. Of course, the specific number of compressors that need to be started needs to be determined according to the power of the compressor. Different heat pump devices are equipped with different compressors. The specific number can be determined according to the actual situation, and the embodiment of the present application does not limit it.

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

[0056] It should be noted that when the heat pump device controls the ambient temperature, the ambient temperature is controlled by the water in the heat pump. When the heat pump device has the function of cooling liquid, the water can be cooled by the compressor and then transported to the space that needs cooling through the pipeline. Therefore, the heat pump device in the embodiment of the present application does not only refer to a heat pump device that only includes a heating mode.

[0057] Based on this, in the embodiment of the present application, the current first water temperature difference may be the temperature difference between the current pipe water temperature and the set temperature. If it is in 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 in 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 corresponding temperature sensor can be set in the pipeline to obtain the current pipeline water temperature. Then, the set temperature is determined according to the control instruction issued by the user. Finally, the current first water temperature difference can be obtained by calculating the difference between the two temperatures.

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

[0060] After 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, the current second water temperature difference is obtained at this time.

[0061] Among them, the current second water temperature difference can be obtained by the difference between the first pipe water temperature and the second pipe water temperature. The first pipe water temperature can be the water temperature at the first position in the heat pump equipment pipe, and the second pipe water temperature can be the water temperature at the second position in the heat pump equipment pipe. At the same time, if it is in cooling mode, the current second water temperature difference is the temperature difference between the first pipe water temperature and the second pipe water temperature; if it is in heating mode, the current second water temperature difference is the temperature difference between the second pipe water temperature and the first pipe water temperature. The acquisition of the first pipe water temperature and the second pipe water temperature can be obtained by setting corresponding temperature sensors at the first position and the second position.

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

[0063] In the embodiment of the present application, the current operating time is the total operating time after the heat pump device is started. If the current operating time is to be obtained, the current second water temperature difference needs to be judged, and the current operating time is obtained only if it belongs to the second target temperature range.

[0064] 205. If the current operating time is greater than or equal to the corresponding target time threshold, adjust the compressor operating quantity of the currently operating compressor according to the current first water temperature difference and the current second water temperature difference.

[0065] In the embodiment of the present application, the target time threshold can be a set time threshold. If the current operating 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 at this time. For example: if the current first water temperature difference and the current second water temperature difference both belong to the target temperature range of reducing the number, the number of currently running compressors can be reduced; or, if the current first water temperature difference and the current second water temperature difference both belong to the target temperature range of increasing the number, 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 1 running compressor, and then detecting whether the adjusted number of compressors can meet user needs. If not, continue to adjust according to the above scheme.

[0066] The heat pump equipment control method provided in the present application can first determine the number of compressors that need to be started according to the control instructions. After that, the current first water temperature difference can be obtained in real time, and the current second water temperature difference can be obtained according to the current first water temperature difference. Then, the corresponding target time threshold is determined according to the current first water temperature difference and the current second water temperature difference. If the current operating time exceeds the target time threshold, the number of running compressors currently in operation can be adjusted, realizing the intelligent start and stop of the compressor, avoiding the waste of resources caused by too many compressors running at the same time, and also avoiding the situation where too few compressors are running and cannot meet the needs of users.

[0067] In order to better implement the embodiment of the present application, in one embodiment of the present application, the first target temperature interval includes a first unloading temperature interval, a first loading temperature interval, and a second loading temperature interval; the second target temperature interval includes a first temperature range interval and a second temperature range interval;

[0068] According to the first corresponding temperature interval and the second corresponding temperature interval, adjusting the compressor operation quantity of the currently operating compressor includes:

[0069] If the current first water temperature difference belongs to the first unloading temperature interval 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 interval 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 interval and the current second water temperature difference belongs to the second temperature range, increase the number of N3 currently running compressors.

[0070] The above embodiment provides a scheme for adjusting the number of currently running compressors according to the target temperature intervals of increasing number and the target temperature intervals of decreasing number. The embodiment of the present application also provides a control scheme, as shown in the above paragraph. Among them, the first unloading temperature interval, the first loading temperature interval and the second loading temperature interval, these three temperature intervals are different temperature intervals in pairs; the first temperature range interval and the second temperature range interval are also temperature intervals with different ranges. For example: the first unloading temperature interval can be (-1, 0], the first loading temperature interval can be (a, a+4], and the second loading temperature interval can be (a+4, +∞]; the first temperature range interval can be (-∞, b], and the second temperature range interval can be [b, +∞).

[0071] In addition, N1, N2 and N3 may be different from each other, wherein N1 may be 3, N2 may be 1, and N3 may be 2. Similarly, the specific numbers of N1, N2 and N3 may be set according to actual conditions, and are not limited in the embodiments of the present application.

[0072] In order to better implement the embodiment of the present application, in one embodiment of the present 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 belongs to the third target temperature range, obtain the current operating time; if the current operating time is greater than or equal to the corresponding target time threshold, reduce the compressor operation quantity of the currently operating compressor according to the current first water temperature difference.

[0074] The above embodiment provides a solution for controlling the number of compressors in operation according to the current first water temperature difference and the current second water temperature difference. However, in different situations, the number of compressors may be controlled without reference to the current second water temperature difference. Therefore, if the current second water temperature difference does not need to be considered, the number of compressors in operation may be directly controlled according to the current first water temperature difference.

[0075] Specifically, if the current first water temperature difference belongs to the third target temperature interval but not the first target temperature interval, there is no need to obtain the current second water temperature difference at this time, but directly obtain the current operating time. After obtaining the current operating time, the judgment method can be the same as the above embodiment, which will not be described in detail here. Among them, only based on the current first water temperature difference, controlling the number of compressor operations can only include reducing the number of compressor operations, without distinguishing whether the first water temperature difference is in the target temperature interval of increasing or decreasing quantity. Reducing the number of compressor operations of the currently running compressor can also be to reduce the number of 1 currently running compressor. If the subsequent reduction still cannot meet the user's needs, continue to judge.

[0076] In order to better implement the embodiment of the present application, in one embodiment of the present application, the third target temperature interval includes the second unloading temperature interval and the third unloading temperature interval;

[0077] According to the current first water temperature difference, the number of compressor operations of the currently operating compressor is reduced, including:

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

[0079] The above embodiment provides a solution for determining the number of compressor operations based only on the current first water temperature difference. The embodiment of the present application also provides a refined solution above the third target temperature interval. Specifically, the third target temperature interval may include a second unloading temperature interval and a third unloading temperature interval. Among them, the second unloading temperature interval may be (-∞, -2], and the third unloading temperature interval may be (-2, -1]. N4 and N5 may also be different from each other, and the specific values ​​can be set according to actual conditions, which is not limited in the embodiment of the present application.

[0080] In order to better implement the embodiment of the present application, in one embodiment of the present 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, the compressor operation quantity of the currently operating compressor is maintained.

[0082] The above embodiment provides a solution for adjusting the number of currently running compressors. However, in actual situations, it also includes a situation of normal operation, that is, a situation where the number of currently running compressors does not need to be adjusted. At this time, after obtaining the current first water temperature difference, if the current first water temperature difference is in the fourth target temperature interval, the number of running compressors is not adjusted. Among them, the fourth target temperature interval can be (0, a].

[0083] In order to better implement the embodiments of the present application, in one embodiment of the present application, the first target temperature interval includes a first dynamic temperature interval, and the corresponding target time threshold includes a corresponding dynamic time threshold;

[0084] After adjusting the compressor operation quantity of the currently operating compressor, the method further includes:

[0085] Determine the adjustment number of compressor operation quantities of the currently running compressor within the target cycle; if the adjustment number is greater than or equal to the first target number threshold or the adjustment number is less than or equal to the second target number threshold, adjust the interval range of the first dynamic temperature interval and the threshold value of the corresponding dynamic time threshold.

[0086] In the above embodiment, some temperature intervals include a coefficient a, and the coefficient a can be a fixed value or a dynamic value. If the coefficient a is a dynamic value, the corresponding temperature interval is a dynamic temperature interval. Therefore, the first dynamic temperature interval can include the fourth target temperature interval, the first loading temperature interval, and the second loading temperature interval.

[0087] Among them, the adjustment coefficient a can include: when the number of loading and unloading actions of the unit is greater than or equal to 3 times within one hour, it means that the output capacity of the unit is smaller than the actual load consumption, and the temperature difference range and control time need to be increased. At this time, the a value is +1 degree Celsius, the cumulative number of times is reset to zero, and the judgment is made in the next hour; when the system is too stable, a compressor is allowed to run for a long time without rotation, which is not conducive to balanced control. Therefore, when the system has not performed a loading and unloading action for an hour, it is necessary to reduce the temperature difference range and control time. At this time, the a value is -1 degree Celsius. By adaptively and continuously adjusting the value of a, the system eventually reaches a relatively balanced state. Among them, 3 times is the target number threshold. However, it should be noted that the target number threshold can also be set according to actual conditions, and the embodiments of the present application are not limited thereto.

[0088] In order to better implement the embodiment of the present application, in an embodiment of the present application, if the current running time is greater than or equal to the corresponding target time threshold, the method further includes:

[0089] A corresponding target time threshold is determined according to the first target temperature interval and / or the second target temperature interval.

[0090] The above embodiment provides a solution in which the target time threshold is a fixed value. However, in the embodiment of the present application, a solution in which the target time threshold is multiple or dynamic values ​​is also provided. The 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 ④Action uninstall uninstall uninstall maintain load load

[0092] Table 1

[0093] In Table 1, T1 is the current first water temperature difference; T2 is the current second water temperature difference; Time is the target time threshold, and c, d, e, and f are the corresponding target time thresholds under different circumstances. According to the first target temperature interval and / or the second target temperature interval, the corresponding target time threshold is determined according to Table 1. It should be noted that the unit of the temperature parameter may be degrees Celsius, and the unit of the time parameter may be seconds.

[0094] In summary, if the unit is turned on, the number of compressors that need to be turned on is calculated according to the current energy demand, and the open-loop control is entered. After all the compressors that need to be turned on are turned on, the closed-loop control is entered: the difference between the current setting and the actual water temperature is calculated regularly to determine which area it is in. After the calculation area is determined, if the three conditions ①②③ are met at the same time, action ④ is executed, otherwise it is not executed.

[0095] Among them, a, b, e values ​​are adjustable, c, d, f values ​​are fixed. The b value is determined by the factory EE parameters and can also be changed on the online controller later, but not through program adaptive adjustment.

[0096] The importance of condition ②:

[0097] 1. Anti-overshoot: If the current energy cycle is calculated to need to be loaded, it is necessary to judge the change in water temperature at the same time. When the system water temperature changes from a downward trend to an upward trend (heating), it proves that the heat currently generated by the unit can be satisfied and there is no need to load another compressor.

[0098] 2. Anti-overloading: After the unit capacity is increased, the water temperature is close to the set temperature. When it is in zone 3, if the water temperature does not change enough in an energy regulation cycle, it proves that the capacity is not sufficient and should not be unloaded.

[0099] At the same time, the adjustment method of e is the same as that of a. For example, the e value is modified through program self-adaptation. When the number of loading and unloading actions of the unit is greater than or equal to 3 times within one hour, it means that the output capacity of the unit is smaller than the actual load consumption. The temperature difference range and control time should be increased. At this time, the e value is +60 seconds, the cumulative number of times is reset to zero, and the judgment is made in the next hour. When the system is too stable, a certain compressor is allowed to run for a long time without rotation, which is not conducive to balanced control. Therefore, when the system has not performed a loading and unloading action for an hour, the temperature difference range and control time need to be reduced. At this time, the e value is -60 seconds. By continuously adjusting the e value through self-adaptation, the system will eventually reach a relatively balanced state.

[0100] In order to better implement the heat pump device control method in the embodiment of the present application, on the heat pump device control method, such as Figure 3 As shown, the device 300 includes:

[0101] The control module 301 is used to respond to the heat pump control instruction and start the compressors in the target heat pump device that match the number of the heat pump control instructions;

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

[0103] The acquisition module 302 is further configured to acquire the current second water temperature difference if the current first water temperature difference belongs to the first target temperature interval;

[0104] The acquisition module 302 is further 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 further configured to adjust the number of compressors running of the currently running compressor according to 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 the present application can first determine the number of compressors that need to be started according to the control instruction through the control module 301. After that, the current first water temperature difference can be obtained in real time through the acquisition module 302, and the current second water temperature difference can be obtained according to the current first water temperature difference. Then, the corresponding target time threshold is determined according to the current first water temperature difference and the current second water temperature difference. If the current operating time exceeds the target time threshold, the number of operations of the currently running compressor can be adjusted through the control module 301, and the intelligent start and stop of the compressor is realized, so as to avoid wasting resources by running too many compressors at the same time, and also avoid running fewer compressors and failing to meet the needs of users.

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

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

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

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

[0111] In some embodiments of the present application, the control module 301 is further used 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 operating time is greater than or equal to the corresponding target time threshold, the compressor operation quantity of the currently operating compressor is reduced according to the current first water temperature difference.

[0114] In some embodiments of the present application, the third target temperature interval includes the second unloading temperature interval and the third unloading temperature interval; the control module 301 is further specifically used for:

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

[0116] If the current first water temperature difference belongs to the third unloading temperature range, the number of N5 currently running compressors is reduced.

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

[0118] If the current first water temperature difference belongs to the fourth target temperature range, the compressor operation quantity of the currently operating compressor is maintained.

[0119] In some embodiments of the present application, the first target temperature interval includes a first dynamic temperature interval, and the corresponding target time threshold includes a corresponding dynamic time threshold; the control module 301 is further specifically configured to:

[0120] determining a number of adjustments to the number of compressor operations for the currently operating compressor within the target period;

[0121] If the adjustment times are greater than or equal to the first target times threshold or the adjustment times are less than or equal to the second target times threshold, the interval range of the first dynamic temperature interval and the threshold value of the corresponding dynamic time threshold are adjusted.

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

[0123] A corresponding target time threshold is determined according to the first target temperature interval and / or the second target temperature interval.

[0124] The present 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, and the processor executes the computer program to implement the steps in any one of the heat pump device control methods in the present application. The heat pump device integrates any one of the heat pump device control methods provided in the present application. Figure 4 As shown, it shows a schematic diagram of the structure of the heat pump device involved in the embodiment of the present application, specifically:

[0125] The heat pump device may include one or more processors 401 of processing cores, one or more computer-readable storage media memories 402, a power supply 403, an input unit 404 and other components. Those skilled in the art will appreciate that Figure 4 The heat pump device structure shown in the figure does not constitute a limitation on the heat pump device, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0126] The processor 401 is the control center of the heat pump device. It uses various interfaces and lines to connect various parts of the entire heat pump device. By running or executing software programs and / or modules stored in the memory 402, and calling data stored in the memory 402, the processor 401 performs various functions of the heat pump device and processes data, thereby monitoring the heat pump device as a whole. 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 (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. Preferably, the processor 401 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, the user interface and the application program, etc., and the modem processor mainly processes wireless communication. It is understandable that the above-mentioned modem processor may not be integrated into the 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, wherein the program storage area may store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area may store data created according to the use of the heat pump device, etc. In addition, the memory 402 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices. 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 for supplying power to each component. Preferably, the power supply 403 can be logically connected to the processor 401 through a power management system, so that the power management system can manage charging, discharging, power consumption and other functions. The power supply 403 can also include one or more DC or AC power supplies, recharging systems, power failure detection circuits, power converters or inverters, power status indicators and other arbitrary components.

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

[0130] Although not shown, the heat pump device may further include a display unit, etc., which will not be described in detail herein. Specifically in this embodiment, the processor 401 in the heat pump device will load 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 will run the application programs stored in the memory 402, thereby realizing various functions, such as:

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

[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 belongs to the second target temperature range, obtain the current running time;

[0135] If the current operating time is greater than or equal to the corresponding target time threshold, the compressor operating quantity of the currently operating compressor is adjusted according to the current first water temperature difference and the current second water temperature difference.

[0136] A person of ordinary skill in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be completed by instructions, or by controlling related hardware through instructions. The instructions may be stored in a computer-readable storage medium and loaded and executed by a processor.

[0137] To this end, the embodiment of the present application provides a computer-readable storage medium, which may include: a read-only memory (ROM), a random access memory (RAM), a 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 heat pump device control method provided in the embodiment of the present application. For example, the computer program loaded by the processor can execute the following steps:

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

[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 belongs to the second target temperature range, obtain the current running time;

[0142] If the current operating time is greater than or equal to the corresponding target time threshold, the compressor operating quantity of the currently operating compressor is adjusted according to the current first water temperature difference and the current second water temperature difference.

[0143] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the detailed description of other embodiments above, and will not be repeated here.

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

[0145] The specific implementation of the above operations can be found in the previous embodiments, which will not be described in detail here.

[0146] The above is a detailed introduction to a heat pump equipment control method and device provided in the embodiment of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A heat pump equipment control method, characterized in that: The method comprises: In response to the heat pump control instruction, start the compressors in the target heat pump device that match the number of the heat pump control instructions; 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, obtaining the current second water temperature difference; If the current second water temperature difference belongs to the second target temperature range, obtaining the current running time; If the current operating time is greater than or equal to the corresponding target time threshold, the compressor operating quantity of the currently operating compressor is adjusted according to the current first water temperature difference and the current second water temperature difference.

2. The heat pump device control method according to claim 1, characterized in that: The first target temperature interval includes a first unloading temperature interval, a first loading temperature interval and a second loading temperature interval; the second target temperature interval includes a first temperature range interval and a second temperature range interval; The step of adjusting the number of compressors currently running according to the first corresponding temperature interval and the second corresponding temperature interval includes: If the current first water temperature difference belongs to the first unloading temperature interval and the current second water temperature difference belongs to the first temperature range interval, reducing the number of currently running compressors by N1; If the current first water temperature difference belongs to the first loading temperature interval and the current second water temperature difference belongs to the second temperature range interval, increase the number of currently running compressors by N2; If the current first water temperature difference belongs to the second loading temperature interval and the current second water temperature difference belongs to the second temperature range interval, the number of currently running compressors is increased by N3.

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 interval, obtaining the current running time; If the current operating time is greater than or equal to the corresponding target time threshold, the compressor operation quantity of the currently operating compressor is reduced according to the current first water temperature difference.

4. The heat pump device control method according to claim 3, characterized in that: The third target temperature interval includes a second unloading temperature interval and a third unloading temperature interval; The reducing the number of compressors currently running according to the current first water temperature difference comprises: 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 interval, the number of currently running compressors is reduced by N5.

5. The heat pump device 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, the compressor operation quantity of the currently operating compressor is maintained.

6. The heat pump device control method according to claim 1, characterized in that: The first target temperature interval includes a first dynamic temperature interval, and the corresponding target time threshold includes a corresponding dynamic time threshold; After adjusting the compressor operation quantity of the currently operating compressor, the method further includes: determining a number of adjustments to the compressor operation quantity of the currently operating compressor within a target period; If the adjustment times are greater than or equal to the first target times threshold or the adjustment times are less than or equal to the second target times threshold, the interval range of the first dynamic temperature interval and the threshold value of the corresponding dynamic time threshold are adjusted.

7. The heat pump device 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 according to the first target temperature interval and / or the second target temperature interval.

8. A heat pump equipment control device, characterized in that: The device comprises: A control module, for responding to a heat pump control instruction and starting compressors in a target heat pump device that match the number of the heat pump control instructions; An acquisition module, used to acquire a current first water temperature difference of a target heat pump device; The acquisition module is further used to acquire the current second water temperature difference if the current first water temperature difference belongs to the first target temperature interval; The acquisition module is further used to acquire the current running time if the current second water temperature difference belongs to the second target temperature interval; The control module is further configured to adjust the compressor operation quantity of the currently operating compressor according to the current first water temperature difference and the current second water temperature difference if the current operation 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, and the processor executes the computer program to implement the steps in 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, and the computer program is executed by a processor to implement the steps in the heat pump device control method according to any one of claims 1 to 7.

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