Air source heat pump operation control method and device in low-temperature and low-pressure environment

Abstract

This invention relates to the field of air source heat pump technology, specifically to a method and device for controlling the operation of air source heat pumps under low-temperature and low-pressure environments. Based on data from a database of regional air source heat pumps during actual location temperature control processes, it analyzes changes in heating operation data for a target area. Compared to changes in heating operation data of the target area heater during operation, this method more accurately reflects changes in heating operation data under harsh actual conditions, providing stronger guidance for actual product development. This method analyzes heating operation data changes based on actual control voltage and temperature data in a database, significantly reducing testing time and labor costs. This method can analyze changes in heating operation data of the target area heater within a preset historical maintenance record interval, continuously updating as the historical maintenance record time of the control voltage increases. It is also simple to operate and highly flexible.

Description

Technical Field

[0001] This invention relates to the field of air source heat pump technology, and specifically to an air source heat pump operation control method and device under low temperature and low pressure environment. Background Technology

[0002] An ultra-low temperature air source heat pump is a heat pump system that uses naturally occurring low-temperature air as a heat source. It can operate in extremely low-temperature environments, providing heating, cooling, and hot water functions. Compared to traditional air source heat pumps, ultra-low temperature air source heat pumps have a wider range of applications and can operate in much colder climates. Because low-temperature environments contain more particulate matter, dust, and pollutants in the air, these impurities may adhere to the surface of the heat pump, affecting its heat exchange efficiency and performance, and even causing malfunctions. Common cleaning methods involve manually spraying water to clean the heat pump system.

[0003] However, existing technologies cannot accurately reflect changes in heating operation data of target area heaters under harsh real-world conditions, thus offering limited guidance for actual product development. Existing technologies require durability testing of the target area heaters and cannot analyze heating operation data changes based on actual control voltage and temperature data in a database, wasting testing time and manpower. Summary of the Invention

[0004] According to a first aspect of the present invention, the present invention claims protection for a method for controlling the operation of an air source heat pump under low temperature and low pressure conditions, characterized in that it comprises:

[0005] Retrieve historical maintenance record data of regional air source heat pump sets within a specified control area from the regional air source heat pump set database, and integrate the historical maintenance record data into a reference operation data set A1;

[0006] The reference operating data set A1 is standardized and analyzed to obtain the initial screening operating data set A2 of the regional air source heat pump set within the specified control area;

[0007] Obtain the effective operation data set A2n of the regional air source heat pump set in the initial screening operation data set A2, and extract the historical maintenance record set A2n' of the target area from the effective operation data set A2n;

[0008] Set the preset heating operation data for the target area, and combine the heating time of the target area in the historical maintenance record set A2n' to obtain the sum of the heating operation data change actions and the cycle heating time of the target area;

[0009] Linear regression was performed on the changes in heating operation data of the target area and the total periodic heating time to construct an analysis model of the changes in heating operation data of the target area as the heating time of the target area increases;

[0010] Based on the aforementioned change analysis model, the direction of change in the heating operation data of the target area of ​​the regional air source heat pump cluster during the future controlled temperature period is analyzed.

[0011] According to a second aspect of the present invention, the present invention claims protection for an air source heat pump operation control device under low temperature and low pressure environment, characterized in that it comprises:

[0012] The retrieval module retrieves historical maintenance record data of the regional air source heat pump set within the specified control area from the regional air source heat pump set database, and integrates the historical maintenance record data into a reference operation data set A1.

[0013] The pre-analysis module performs standardized analysis on the reference operating data set A1 to obtain the initial screening operating data set A2 of the regional air source heat pump set within the specified control area;

[0014] The segment setting module obtains the effective operation data set A2n of the regional air source heat pump set in the initial screening operation data set A2, and extracts the historical maintenance record set A2n' of the target area from the effective operation data set A2n;

[0015] The integrated analysis module sets the preset heating operation data of the target area, and combines the heating time of the target area in the historical maintenance record set A2n' to obtain the sum of the heating operation data change actions and the cycle heating time of the target area;

[0016] The model building module performs linear regression on the heating operation data changes of the target area and the total periodic heating time to build an analysis model of heating operation data changes in the target area as the heating time of the target area increases.

[0017] The analysis module analyzes the direction of change in the heating operation data of the target area within the future controlled temperature period based on the change analysis model.

[0018] According to a third aspect of the present invention, the present invention claims protection for an air source heat pump operation control device under low temperature and low pressure environment, characterized in that it comprises:

[0019] Memory for storing non-transitory computer-readable instructions; and

[0020] An analyzer is used to maintain and record the computer-readable instructions in history, so that when the analyzer is executed, it implements the air source heat pump operation control method under low temperature and low pressure environment.

[0021] This invention relates to the field of air source heat pump technology, specifically to a method and device for controlling the operation of air source heat pumps under low-temperature and low-pressure environments. Based on data from a database of regional air source heat pumps during actual temperature control processes, it analyzes changes in heating operation data for a target area. Compared to changes in heating operation data of the target area heater during operation, this method more accurately reflects changes in heating operation data under harsh actual conditions, providing stronger guidance for actual product development. This method eliminates the need for durability testing of the target area heater; instead, it analyzes changes in heating operation data based on actual controlled temperature data and control voltage in the database, significantly saving testing time and labor costs. This method can analyze changes in heating operation data of the target area heater within a preset historical maintenance record period, continuously updating as the historical maintenance record time of the control voltage increases. It is also simple to operate and highly flexible. Attached Figure Description

[0022] Figure 1 This is an effective heating process flow diagram of an air source heat pump operation control method under low temperature and low pressure environment involved in the present invention.

[0023] Figure 2 This invention relates to a method for controlling the operation of an air source heat pump under low temperature and low pressure conditions, which involves obtaining effective heating flow charts for historical maintenance records of the target area.

[0024] Figure 3 This is a flowchart illustrating the calculation of the total heating time in an air source heat pump operation control method under low temperature and low pressure environment, as described in this invention.

[0025] Figure 4 This is a structural module diagram of an air source heat pump operation control device under low temperature and low pressure environment according to the present invention;

[0026] Figure 5 This is a structural diagram of an air source heat pump operation control device under low temperature and low pressure environment, as described in this invention.

[0027] Figure 6 This is a schematic diagram of the structure of an air source heat pump, which is part of the air source heat pump operation control device for low temperature and low pressure environments, as described in this invention.

[0028] Figure 7 This is a schematic diagram of the internal structure of the air source heat pump body of the air source heat pump operation control device for low temperature and low pressure environments involved in this invention.

[0029] Figure 8 This is an enlarged structural schematic diagram of an air source heat pump, which is part of the air source heat pump operation control device for low temperature and low pressure environments, as described in this invention.

[0030] Figure 9 This is a schematic diagram of the defrosting ring of an air source heat pump in an air source heat pump operation control device for low temperature and low pressure environments, as described in this invention. Detailed Implementation

[0031] According to a first embodiment of the present invention, referring to the appendix Figure 1 This invention claims protection for a method for controlling the operation of an air source heat pump under low temperature and low pressure conditions, comprising the following steps:

[0032] A100 retrieves historical maintenance record data of the regional air source heat pump set within the specified control area from the regional air source heat pump set database, and integrates the historical maintenance record data into a reference operation data set A1.

[0033] A200, standardize the reference operating data set A1 to obtain the initial screening operating data set A2 of the regional air source heat pump set within the specified control area;

[0034] A300, obtain the effective operating data set A2n of the regional air source heat pump set in the initial screening operating data set A2, and extract the historical maintenance record set A2n' of the target area from the effective operating data set A2n;

[0035] A400 sets the preset heating operation data for the target area, and combines the heating time of the target area in the historical maintenance record set A2n' to obtain the sum of the heating operation data change actions and the cycle heating time of the target area;

[0036] A500 performs linear regression on the changes in heating operation data of the target area and the total periodic heating time to construct an analysis model of the changes in heating operation data of the target area as the heating time of the target area increases.

[0037] A600 analyzes the direction of change in the heating operation data of a regional air source heat pump cluster within a future controlled temperature period based on a change analysis model.

[0038] Further, step A100 specifically includes:

[0039] The historical maintenance records of the regional air source heat pump system should include at least the duration of temperature control, the control voltage scenario, the control terminal attributes, the number of users in the target area, and the size of the target area.

[0040] The voltage control scenarios include at least normal scenarios and abnormal scenarios;

[0041] The heating operation data for the target area should include at least the number of users in the target area and the size of the target area;

[0042] The aforementioned historical maintenance records are integrated into a set to obtain the reference operation data set A1.

[0043] Further, step A200 specifically includes:

[0044] Invalid operation data detection and analysis are performed on the reference operation data set A1. When completely invalid operation data is identified in the reference operation data set A1, the data in that row is removed. When partially invalid operation data is identified in the reference operation data set A1, a judgment analysis is performed based on the context heating operation data.

[0045] The reference operating data set A1 is analyzed to determine the operating data to be of interest. When there are operating data in the reference operating data set A1 that meet the conditions of interest, the analysis is performed based on the context heating operating data.

[0046] In this embodiment, when it is identified that there is completely invalid running data in the reference running data set A1, that is, when the entire row is blank, there is no data in the row, and the row is removed for analysis.

[0047] When invalid operating data is identified in the reference operating data set A1, where the control temperature duration and control voltage scenario data are not empty, but the relevant data for the target area is missing, the data is combined with other historical maintenance records to determine whether the control voltage scenario is "abnormal" and no analysis is needed, and the data in that row is retained; if the control voltage scenario is "normal", the data in that row is obviously wrong, and the row is removed for analysis.

[0048] When analyzing and judging operational data, if there are operational data in the reference operational data set A1 that meet the criteria for attention, then there is data in that row, but the data value is obviously incorrect or unreasonable. For this type of data, it is necessary to make a judgment and then analyze it.

[0049] Further, refer to the appendix. Figure 2 Step A300 specifically includes:

[0050] A301, based on the control voltage scenario, divide the historical maintenance record status of the regional air source heat pump collection within the specified control area, extract the multiple heating operation data of the regional air source heat pump collection within the effective control temperature range, and obtain the effective operation data set A2n of the regional air source heat pump collection in the initial screening operation data set A2;

[0051] A302, obtain the data of the target area in the effective heating scenario from the effective operation data set A2n of multiple regional air source heat pump sets, and obtain the historical maintenance record interval of the target area in the effective heating scenario;

[0052] A303, collects the heating operation data set of the target area within the historical maintenance record interval, and combines it with the control temperature duration of the regional air source heat pump set to form the historical maintenance record set A2n' of the target area;

[0053] In this embodiment, the raw data exported from the database is subjected to data standardization analysis to form effective data of the regional air source heat pump set within the time interval. This set is designated as A2, and subsequent data analysis is performed based on A2.

[0054] Data on the area air source heat pump collection within the effective temperature control range is extracted, where the control voltage scenario is "normal" or "abnormal", which serves as the basis for determining whether the control voltage controls the temperature.

[0055] In step A301, according to the time sequence of the controlled temperature duration, from the first appearance of "normal" in the controlled voltage scenario (time t1) until the controlled voltage scenario changes from "normal" to "abnormal" (here, abnormal is time t2), that is, the time period from time t1 to time t2, is used as the data of the controlled voltage for this heating operation (the first heating). This set is called A2.1.

[0056] In step A302, extract the data from each heating operation data of the control voltage that shows the target area is in an effective heating scenario (A2.1, A2.2, A2.3...A2.n).

[0057] The control voltage data of A2.1, A2.2, A2.3...A2.n for each heating operation are compiled into a set as the effective operating data set A2n of the regional air source heat pump set;

[0058] Using the number of users in the target area and the size of the target area as the criteria, find the historical maintenance record interval in which the target area is in an effective heating scenario;

[0059] The refrigerant circulation volume P in the target area = the product of the number of users I in the target area and the size V of the target area;

[0060] Furthermore, the historical maintenance record interval for the target area in an effective heating scenario is the time interval between when the refrigerant circulation volume in the target area was greater than the preset refrigerant circulation volume threshold during the historical maintenance record and when the refrigerant circulation volume in the target area was lower than the preset refrigerant circulation volume threshold during the historical maintenance record.

[0061] Scenarios where the historical refrigerant circulation volume in the target area is greater than the preset refrigerant circulation volume threshold are considered to be in an effective heating scenario for the target area.

[0062] Further, refer to the appendix. Figure 3 Step A400 specifically includes:

[0063] A401, Select other heating operation data of the target area within each historical maintenance record interval under the preset heating operation data from the historical maintenance record set A2n';

[0064] A402, based on the control temperature duration of the regional air source heat pump collection, obtains the total daily heating time of the target area in the specified area and the average value of other heating operation data of the target area under the preset heating operation data;

[0065] A403, based on the control temperature data of the regional air source heat pump collection within the specified control area, obtains the change action of the heating operation data of the target area when the historical maintenance record time of the regional air source heat pump collection increases;

[0066] In this embodiment, to analyze changes in heating operation data of the target area, heating operation data is required. However, the effective heating range of the target area is very large, and effective heating can be provided under different numbers of users, which makes it impossible to standardize the data. Therefore, to achieve standardization, a specific historical maintenance record range needs to be determined first, for example, around 120 users. This user count of 120 is used as the preset heating operation data, and the number of users in the target area under this condition is used as other heating operation data for subsequent heating operation data change analysis.

[0067] In the sets A2.1', A2.2' up to A2.n' mentioned above, select the data in each set whose number of users, quantity, or refrigerant circulation volume in the target area falls within a specific range to obtain the heating operation data for the target area.

[0068] In this embodiment, in step A402, after multiple data analysis steps, the control temperature duration region of the control voltage is used as the judgment criterion to further obtain the region as Day. M-N The average value of heating operation data for the target area within a specific range.

[0069] Specifically, the preset heating operation data in steps A401 and A402 can be any one of the number of users, quantity, and refrigerant circulation volume in the target area; the other heating operation data can be one or both of the remaining two indicators.

[0070] Step A403 specifically includes:

[0071] Based on the analysis of temperature control data of regional air source heat pump clusters over a period of time, the changes in heating operation data of the target area as the historical maintenance record time of the control voltage increases are obtained.

[0072] For example, Day1-1, Day1-2, and so on up to Day1-30 form the distribution of heating areas in January, indicating that heating is provided every day from January 1st to January 30th due to the controlled voltage. If there is no heating on any of those days, then the set tDay will not include the area corresponding to that day.

[0073] Further, step A500 specifically includes:

[0074] Based on changes in heating operation data for the target area and the total periodic heating time of the target area, a linear regression method using the optimal linear solution is employed to establish and analyze the changes in heating operation data of the target area as the historical maintenance record time of the control voltage increases, using a univariate linear equation.

[0075]

[0076]

[0077] in The data representing the number of users in the target area is I. ps The corresponding target area size index and target area refrigerant circulation volume index, a V a P These represent the coefficients of change for quantity indicators and the coefficients of change for refrigerant circulation volume, respectively; t represents the total periodic heating time of the target area; b V b P This represents a constant term.

[0078] In this embodiment, A600, based on a change analysis model, analyzes the direction of change in the heating operation data of the regional air source heat pump cluster within the target area over a future controlled temperature period, and further includes:

[0079] Modeling: Establish a change analysis model, including users' natural attributes, social attributes, and heating habits. Natural attributes include the number of users and gender; social attributes include education level and occupation; heating habits include keywords related to air source heat pumps, categories, dwell time, and the frequency of different voltage settings.

[0080] Initial data collection: Collect initial heating operation data samples, namely the operation data adjusted by the user and the specific operation data attributes, and perform data processing to generate a set of data to be analyzed that is suitable for the above model.

[0081] Similarity grouping: Similarity analysis is performed on the data samples to be analyzed to obtain initial user group divisions, and user attributes related to these divisions are obtained, while user attributes irrelevant to the divisions are removed. Based on the user group divisions, long-term operational data correlations are obtained for each group, such as the keywords and / or categories followed by each user group.

[0082] Analysis of the changing direction of heating operation data based on similar grouping: For user requests for operation time, the possibility of obtaining different operation data based on the group to which the user belongs.

[0083] Here, after obtaining the user classification, association rule mining is used to analyze the changing direction of long-term operational data for user categories.

[0084] Association rule mining includes:

[0085] Identify high-frequency target item groups from a sample set of known user categories. The candidate item groups are air source heat pump related features, such as keywords, air source heat pump metadata, environmental preferences, image attributes, air source heat pump categories, etc.

[0086] Association rules are generated by the high-frequency project team.

[0087] Operational data correlation: Based on the correlation statistics among all users' historical operational data, calculate the probability of each operational data point being strongly correlated with a single operational data point or a chain of operational data. For example, a user who is interested in home decoration prices is likely to also be interested in information about home decoration accessories.

[0088] Analysis of changes in heating operation data based on associated operation data: For user requests based on operation time, the probability of obtaining various operation data that are strongly associated with the user can be obtained based on the user's recent operation data or operation data chain.

[0089] Comprehensive prediction of heating operation data: The heating operation data is predicted by combining the analysis results of the change direction of heating operation data based on similar grouping and the analysis results of the change direction of heating operation data based on related operation data.

[0090] Based on the comprehensive forecast results of heating operation data, the information to be distributed is matched to achieve precise distribution.

[0091] According to a second embodiment of the present invention, referring to Figure 4 This invention claims protection for an air source heat pump operation control device under low temperature and low pressure environment, characterized in that it includes:

[0092] The retrieval module retrieves historical maintenance record data of the regional air source heat pump set within the specified control area from the regional air source heat pump set database, and integrates the historical maintenance record data into a reference operation data set A1.

[0093] The pre-analysis module performs standardized analysis on the reference operating data set A1 to obtain the initial screening operating data set A2 of the regional air source heat pump set within the specified control area;

[0094] The segment setting module obtains the effective operating data set A2n of the regional air source heat pump set in the initial screening operating data set A2, and extracts the historical maintenance record set A2n' of the target area from the effective operating data set A2n;

[0095] The integrated analysis module sets the preset heating operation data for the target area, and combines the heating time of the target area in the historical maintenance record set A2n' to obtain the sum of the heating operation data change actions and the cycle heating time of the target area;

[0096] The model building module performs linear regression on the changes in heating operation data of the target area and the total periodic heating time to build an analysis model of the changes in heating operation data of the target area as the heating time of the target area increases.

[0097] The prediction module analyzes the direction of change in the heating operation data of the regional air source heat pump cluster within the target area over the future controlled temperature period, based on the change analysis model.

[0098] According to a third embodiment of the present invention, referring to Figure 5 This invention claims protection for an air source heat pump operation control device under low temperature and low pressure environment, characterized in that it includes:

[0099] Memory for storing non-transitory computer-readable instructions; and

[0100] An analyzer is used to maintain and record computer-readable instructions, enabling the analyzer to execute a method for controlling the operation of an air source heat pump in a low-temperature and low-pressure environment.

[0101] like Figures 6 to 9 As shown, the air source heat pump in the air source heat pump operation control device under low temperature and low pressure environment according to the fourth embodiment of the present invention includes: a unit body 4, an air source heat pump body 11, a liquid storage tank 6, a fixing frame 1, and a filter assembly. The unit body 4 is embedded in the fixing frame 1. The air source heat pump body 11, the liquid storage tank 6, and the filter assembly are arranged inside the unit body 4. The liquid storage tank 6 is connected to the air source heat pump body 11 through the filter assembly. An inlet pipe 5 is provided at the upper end of the liquid storage tank 6. The above description refers to the prior art of air source heat pumps.

[0102] Furthermore, a filter assembly is provided at the lower end of the storage tank 6. The filter assembly includes a filter cover 9, a filter screen 17, a drain pipe 7, a backflow pipe 8, and a cleaning nozzle 18. The filter cover 9 is located at the lower end of the storage tank 6 and communicates with the storage tank 6. The hollow interior of the filter cover 9 forms a filter chamber 10. The filter screen 17 is located in the middle of the filter chamber 10. The storage tank 6 communicates with the area inside the filter chamber 10 above the filter screen 17. The air source heat pump body 11 communicates with the area inside the filter chamber 10 below the filter screen 17. One end of the drain pipe 7 communicates with the area inside the filter chamber 10 above the filter screen 17, and the other end of the drain pipe 7 communicates with the sewage discharge equipment. The cleaning nozzles 18 are evenly distributed on the bottom upper surface of the filter chamber 10. The backflow pipe 8 is connected to the cleaning nozzles 18 through a connecting pipe and is connected to an external water source. A water pump is provided in the middle of the backflow pipe 8 and the drain pipe 7.

[0103] During operation, water enters the storage tank 6 through the inlet pipe 5. A filter assembly is installed below the storage tank 6. The water enters the area above the filter screen 17 inside the filter chamber 10 from the storage tank 6. After being filtered by the filter screen 17, the water flows down to the area below the filter screen 17 inside the filter chamber 10 and enters the air source heat pump body 11 to work, ensuring the normal operation of the unit body 4.

[0104] After the air source heat pump body 11 has been running for a period of time, when the filter screen 17 needs to be cleaned, the inlet pipe 5 is closed and the backflow pipe 8 is opened. The external water source enters the connecting pipe through the backflow pipe 8. The connecting pipe is connected to each cleaning nozzle 18. The cleaning nozzle 18 starts to work and backflows the impurities on the upper surface of the filter screen 17. At the same time, the drain pipe 7 is opened and the water pump in the middle of the drain pipe 7 works to draw away the washed impurities into the external sewage discharge equipment. The cleaning can be repeated to enhance the cleaning effect and complete the cleaning of the filter screen 17.

[0105] Furthermore, check valves are installed at the ends of the backflow pipe 8 and the liquid inlet pipe 5. During operation, the check valves can prevent water from flowing back and avoid sewage from flowing back into the main body 4 of the unit, thus preventing it from disrupting normal operation and further protecting the safety of the water source in the main body 11 of the air source heat pump.

[0106] Furthermore, the filter screen 17 has a double-layer structure, and the gaps between the double-layer filter screen 17 are filled with filter material, which is activated carbon. The double-layer structure of the filter screen 17 has a high filtration speed, which can save the cost of the main unit 4. The water flow first undergoes coarse filtration and then fine filtration, which can improve the removal rate of suspended solids. The filter bed with the double-layer filter structure has a large dirt-holding capacity, which increases the filtration efficiency of the filter screen 17 and further enhances the cleanliness of the water that passes through into the air source heat pump main unit 11.

[0107] Furthermore, the air source heat pump body 11 is also provided with a defrost ring 12 and an electric push rod 13. The electric push rod 13 is located at the bottom of the air source heat pump body 11, the defrost ring 12 is nested on the outside of the air source heat pump body 11, and the bottom telescopic end of the electric push rod 13 is connected to the defrost ring 12.

[0108] During operation, the telescopic rod of the electric push rod 13 is connected to the defrost ring 12. The defrost ring 12 moves up and down on the outer surface of the air source heat pump body 11 to clean the outer surface of the air source heat pump.

[0109] Furthermore, a brush ring 14 is provided on the inner surface of the defrost ring 12, and a cleaning brush bristle 15 is provided on the inner surface of the brush ring 14. The cleaning brush bristle 15 is made of soft metal bristles and contacts the outer surface of the air source heat pump body 11. During operation, the electric push rod 13 drives the defrost ring 12 to work. At the same time, the cleaning brush on the defrost ring 12 contacts the outer surface of the air source heat pump body 11 and rubs and scrapes off the frost on the outer surface.

[0110] Furthermore, the brush ring 14 has an annular tubular structure and is also equipped with a defrost nozzle 16. The defrost nozzle 16 is connected to the brush ring 14 through a heating hose. The defrost nozzle 16 is positioned in the gap of the cleaning bristles 15. The hot air sprayed from the defrost nozzle 16 can melt the frost on the air source heat pump body 11. The design of the defrost nozzle 16 enhances the cleanliness of the cleaning bristles 15 and avoids frost and impurities that may adhere to the surface of the heat pump, affecting its heat exchange efficiency and performance, or even causing the heat pump to malfunction.

[0111] Furthermore, the bottom end of the mounting bracket 1 is equipped with wheels 2, which have a self-locking device. The wheels 2 make it easier to maintain and clean the unit body 4. When it is necessary to clean the air source heat pump body 11 or the filter regularly, the unit body 4 can be easily pulled out or pushed to a more convenient position, so that maintenance personnel can more easily perform the necessary work and ensure that the system maintains efficient operation. By adjusting the position of the unit body 4, airflow can be better optimized, thereby improving the efficiency of the system. The wheels 2 make it easier to fine-tune the position of the unit body 4 to ensure that the unit body 4 can make full use of the surrounding air, which helps to improve the performance of the unit body 4 and reduce the energy consumption of the system.

[0112] Furthermore, the mounting bracket 1 is provided with a handle 3 on the outside. The handle 3 makes it more convenient for maintenance personnel to perform maintenance and cleaning work on the air source heat pump body 11. When the air source heat pump body 11 or filter needs to be cleaned regularly, the handle 3 can be used as a strong support point to make it easier to move and access the components on the mounting bracket 1, providing better working space. The design of the handle 3 can provide additional safety and stability. During the movement or installation of the air source heat pump body 11, the handle 3 can be used to stabilize the air source heat pump body 11 and help the manufacturer or installer maintain balance, reducing the risk of accidents and unnecessary injuries.

[0113] Those skilled in the art will understand that the contents disclosed herein can be varied and modified in many ways. For example, the various devices or components described above can be implemented in hardware, or in software, firmware, or a combination of some or all of the three.

[0114] This disclosure uses flowcharts to illustrate the steps of a method according to embodiments of this disclosure. It should be understood that the preceding or following steps are not necessarily performed in exact order. Instead, the steps can be analyzed in reverse order or simultaneously. Furthermore, other operations can be added to these processes.

[0115] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a computer program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Accordingly, each module / unit in the above embodiments can be implemented in hardware or as a software functional module. This disclosure is not limited to any particular combination of hardware and software.

[0116] Unless otherwise defined, all terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It should also be understood that terms such as those defined in a common dictionary should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0117] The foregoing description is intended to illustrate the present disclosure and should not be construed as limiting it. While several exemplary embodiments of the present disclosure have been described, those skilled in the art will readily understand that many modifications may be made to the exemplary embodiments without departing from the novel teachings and advantages of the present disclosure. Therefore, all such modifications are intended to be included within the scope of the present disclosure as defined by the claims. It should be understood that the foregoing description is intended to illustrate the present disclosure and should not be construed as limiting it to the specific embodiments disclosed, and modifications to the disclosed embodiments and other embodiments are intended to be included within the scope of the appended claims. The present disclosure is defined by the claims and their equivalents.

[0118] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0119] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A method for controlling the operation of an air source heat pump under low temperature and low pressure conditions, characterized in that, include: Retrieve historical maintenance record data of regional air source heat pump sets within a specified control area from the regional air source heat pump set database, and integrate the historical maintenance record data into a reference operation data set A1; The reference operating data set A1 is standardized and analyzed to obtain the initial screening operating data set A2 of the regional air source heat pump set within the specified control area; Obtain the effective operation data set A2n of the regional air source heat pump set in the initial screening operation data set A2, and extract the historical maintenance record set A2n' of the target area from the effective operation data set A2n; Set the preset heating operation data for the target area, and combine the heating time of the target area in the historical maintenance record set A2n' to obtain the sum of the heating operation data change actions and the cycle heating time of the target area; Linear regression was performed on the heating operation data changes in the target area and the total periodic heating time to construct an analysis model of heating operation data changes in the target area as the heating time in the target area increases; Based on the aforementioned change analysis model, the direction of change in the heating operation data of the target area of ​​the regional air source heat pump cluster during the future controlled temperature period is analyzed. The process of obtaining the effective operating data set A2n of the regional air source heat pump set in the initial screening operating data set A2, and extracting the historical maintenance record set A2n' of the target area from the effective operating data set A2n, specifically includes: Based on the control voltage scenario, the historical maintenance records of the regional air source heat pump set within the specified control area are divided, and multiple heating operation data of the regional air source heat pump set within the effective control temperature range are extracted to obtain the effective operation data set A2n of the regional air source heat pump set in the initial screening operation data set A2. Data on the target area being in an effective heating scenario is obtained from the effective operating data set A2n of the regional air source heat pump set multiple times, and the historical maintenance record interval of the target area being in an effective heating scenario is obtained; The heating operation data set of the target area within the historical maintenance record interval is collected, and combined with the control temperature duration of the air source heat pump set in the area to form the historical maintenance record set A2n' of the target area.

2. The method for controlling the operation of an air source heat pump under low temperature and low pressure environment as described in claim 1, characterized in that, The step of retrieving historical maintenance record data of regional air source heat pump sets within a specified control area from the regional air source heat pump set database and integrating the historical maintenance record data into a reference operation data set A1 specifically includes: The historical maintenance records of the regional air source heat pump system should include at least the duration of temperature control, the control voltage scenario, the control terminal attributes, the number of users in the target area, and the size of the target area. The control voltage scenarios include at least normal scenarios and abnormal scenarios; The heating operation data for the target area should include at least the number of users in the target area and the size of the target area; The aforementioned historical maintenance records are integrated into a set to obtain the reference operation data set A1.

3. The method for controlling the operation of an air source heat pump under low temperature and low pressure environment as described in claim 2, characterized in that, The standardization analysis of the reference operating data set A1 yields a preliminary operating data set A2 for the regional air source heat pump set within the specified control area, specifically including: Invalid operation data detection and analysis are performed on the reference operation data set A1. When completely invalid operation data is identified in the reference operation data set A1, the data in that row is removed. When partially invalid operation data is identified in the reference operation data set A1, a judgment analysis is performed based on the context heating operation data. The reference operating data set A1 is subjected to a focus operation data determination analysis. When there are operating data in the reference operating data set A1 that meet the focus conditions, a determination analysis is performed based on the context heating operating data.

4. The method for controlling the operation of an air source heat pump under low temperature and low pressure environment as described in claim 3, characterized in that, The historical maintenance record interval for the target area in an effective heating scenario is the historical maintenance record interval between when the refrigerant circulation volume of the target area was greater than the preset refrigerant circulation volume threshold and when the refrigerant circulation volume of the target area was lower than the preset refrigerant circulation volume threshold. Scenarios where the historical refrigerant circulation volume in the target area is greater than a preset refrigerant circulation volume threshold are considered to be in an effective heating scenario for the target area.

5. The method for controlling the operation of an air source heat pump under low temperature and low pressure environment as described in claim 4, characterized in that, The process involves setting preset heating operation data for the target area, combining this data with the heating time of the target area in the historical maintenance record set A2n', to obtain the sum of heating operation data change actions and cycle heating time for the target area. Specifically, this includes: Select other heating operation data of the target area within each historical maintenance record interval that are under the preset heating operation data from the historical maintenance record set A2n'; Based on the controlled temperature duration of the regional air source heat pump set, the total daily heating time of the target area in the specified area and the average value of other heating operation data of the target area under the preset heating operation data are obtained; Based on the controlled temperature data of the regional air source heat pump set within the designated control area, the changes in heating operation data of the target area are obtained when the historical maintenance record time of the regional air source heat pump set increases.

6. The method for controlling the operation of an air source heat pump under low temperature and low pressure environment as described in claim 5, characterized in that, The process of obtaining changes in heating operation data of the target area based on the controlled temperature data of the regional air source heat pump cluster within the designated control area, when the historical maintenance record time of the regional air source heat pump cluster increases, specifically includes: The heating area of ​​the air source heat pump set in the region is obtained, and the total daily heating time and total periodic heating time of the target area under the heating area in the effective heating scenario are obtained as heating operation data.

7. The method for controlling the operation of an air source heat pump under low temperature and low pressure environment as described in claim 4, characterized in that, The method involves performing a linear regression on the changes in heating operation data of the target area and the total periodic heating time to construct an analytical model for the changes in heating operation data of the target area as the historical maintenance record time of the control voltage increases. Specifically, this includes: Based on changes in heating operation data for the target area and the total periodic heating time of the target area, a linear regression method using the optimal linear solution is employed to establish and analyze the changes in heating operation data of the target area as the historical maintenance record time of the control voltage increases, using a univariate linear equation. ； ； in , The data representing the number of users in the target area are as follows: The corresponding target area size index and target area refrigerant circulation volume index are as follows: , These represent the coefficients of change for quantity indicators and the coefficients of change for refrigerant circulation volume, respectively. This represents the total heating period of the target area. , This represents a constant term.

8. A control device for the operation of an air source heat pump under low temperature and low pressure conditions, characterized in that, include: The retrieval module retrieves historical maintenance record data of the regional air source heat pump set within the specified control area from the regional air source heat pump set database, and integrates the historical maintenance record data into a reference operation data set A1. The pre-analysis module performs standardized analysis on the reference operating data set A1 to obtain the initial screening operating data set A2 of the regional air source heat pump set within the specified control area; The segment setting module obtains the effective operation data set A2n of the regional air source heat pump set in the initial screening operation data set A2, and extracts the historical maintenance record set A2n' of the target area from the effective operation data set A2n; The integrated analysis module sets the preset heating operation data of the target area, and combines the heating time of the target area in the historical maintenance record set A2n' to obtain the sum of the heating operation data change actions and the cycle heating time of the target area; The model building module performs linear regression on the changes in heating operation data of the target area and the total periodic heating time to build an analysis model of the changes in heating operation data of the target area as the heating time of the target area increases. The analysis module analyzes the direction of change in the heating operation data of the regional air source heat pump cluster within the target area during the future controlled temperature period, based on the change analysis model. The segment setting module divides the historical maintenance records of the regional air source heat pump set within the specified control area according to the control voltage scenario, extracts multiple heating operation data of the regional air source heat pump set within the effective control temperature range, and obtains the effective operation data set A2n of the regional air source heat pump set in the initial screening operation data set A2. Data on the target area being in an effective heating scenario is obtained from the effective operating data set A2n of the regional air source heat pump set multiple times, and the historical maintenance record interval of the target area being in an effective heating scenario is obtained; The heating operation data set of the target area within the historical maintenance record interval is collected, and combined with the control temperature duration of the air source heat pump set in the area to form the historical maintenance record set A2n' of the target area.

9. A control device for the operation of an air source heat pump under low temperature and low pressure conditions, characterized in that, The air source heat pump includes: The unit consists of a main body (4), an air source heat pump body (11), a liquid storage tank (6), a mounting frame (1), and a filter assembly. The main body (4) is embedded in the mounting frame (1). The main body (4) contains the air source heat pump body (11), the liquid storage tank (6), and the filter assembly. The liquid storage tank (6) is connected to the air source heat pump body (11) through the filter assembly. The main body (4) is characterized by having an inlet pipe (5) at the upper end and a filter assembly at the lower end. The filter assembly includes a filter cover (9), a filter screen (17), a drain pipe (7), a backflow pipe (8), and a cleaning nozzle (18). The filter cover (9) is located at the lower end of the liquid storage tank (6) and communicates with the liquid storage tank (6). The internal hollow space of the filter cover (9) forms a filter cavity (10). The filter screen (17) is located in the filter cavity. (10) In the middle position, the liquid storage tank (6) is connected to the area inside the filter chamber (10) above the filter screen (17), the air source heat pump body (11) is connected to the area inside the filter chamber (10) below the filter screen (17), one end of the drain pipe (7) is connected to the area inside the filter chamber (10) above the filter screen (17), and the other end of the drain pipe (7) is connected to the drain equipment. The cleaning nozzles (18) are evenly arranged on the bottom upper surface of the filter chamber (10). The backflow pipe (8) is connected to the cleaning nozzle (18) through a connecting pipe. The backflow pipe (8) is connected to an external water source. A water pump is provided in the middle position between the backflow pipe (8) and the drain pipe (7) to realize the air source heat pump operation control method under low temperature and low pressure environment as described in any one of claims 1-7.

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