Method and system for evaluating cold island effect of air source heat pump array

Abstract

The application provides an air source heat pump array cold and wet island effect evaluation method and system, and belongs to the field of air source heat pump operation performance evaluation; the method comprises the following steps: obtaining the environment temperature and relative humidity of an air source heat pump array area, and determining the heating indoor and outdoor design temperature; obtaining the air source heat pump array heating load rate according to the environment temperature, the heating indoor design temperature and the heating outdoor design temperature; determining the minimum starting rate of the air source heat pump array according to the air source heat pump array heating load rate; calculating the cold island effect intensity and the wet island effect intensity based on the environment temperature, the relative humidity and the array minimum starting rate; dividing the interaction relationship area between the cold island effect intensity and the wet island effect intensity according to the relative humidity; calculating the cold and wet island effect heating performance loss according to the cold island effect intensity and the wet island effect intensity for different interaction areas, so that the air source heat pump array cold and wet island effect intensity and the heating performance loss evaluation are realized.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of air source heat pump operation performance evaluation, and particularly relates to an air source heat pump array cold-wet island effect evaluation method and system, which is used for loss evaluation of the intensity of air source heat pump array cold-wet island effect and heating performance. BACKGROUND

[0002] The statements in this section merely provide background information related to the present application and do not necessarily constitute prior art.

[0003] As a mature and efficient renewable energy technology, air source heat pump uses air as a "inexhaustible and inexhaustible" heat source to realize the heating concept of "heat exists everywhere, can be obtained at any time, and can be taken as needed", and plays an important role in the field of clean heating of buildings. In recent years, with the gradual deepening of the concept of clean heating and "low carbon", air source heat pump has gradually become the main choice to replace traditional coal-fired heating technology, and its application range and scale are continuously expanding.

[0004] With the expansion of the air source heat pump heating scene scale from the household level to the million square meter level, the air source heat pump array becomes the mainstream arrangement form. However, when the array scale is large, due to the influence of air backflow effect, the central area of the array is prone to form a "low temperature and high humidity" local microclimate, i.e. cold-wet island effect. Not only reduces the energy quality of the unit inlet air, but also significantly increases the unit frosting risk and defrosting loss, thereby deteriorating the unit heating performance. At present, there is still a lack of systematic and precise evaluation method for the intensity of cold-wet island effect and the performance loss caused thereby, which makes it difficult to develop clear countermeasures and threshold standards in advance during the array design and operation stage, so as to effectively alleviate the adverse effects of cold-wet island effect on the operation performance of air source heat pump array. SUMMARY

[0005] In order to overcome the shortcomings of the prior art, the present application provides an air source heat pump array cold-wet island effect evaluation method and system, which is based on the collection of air source heat pump array regional meteorological parameters, calculates the array load rate and operation rate, accurately predicts the dynamic changes of cold island effect and wet island effect intensity, and deeply analyzes the cold-wet interaction relationship between the two, so as to realize the quantitative evaluation of the heating performance loss of cold-wet island effect.

[0006] To achieve the above object, one or more embodiments of the present application provide the following technical solutions:

[0007] The first aspect of the present application provides an air source heat pump array cold-wet island effect evaluation method;

[0008] An air source heat pump array cold-wet island effect evaluation method, comprising:

[0009] Obtain ambient temperature and relative humidity data for the air source heat pump array area to determine the indoor design temperature for heating and the outdoor design temperature for heating;

[0010] Calculate the heating load rate of the air source heat pump array according to the ambient temperature, the heating indoor design temperature and the heating outdoor design temperature;

[0011] Determining a minimum start-up rate of the air source heat pump array according to the heating load rate of the air source heat pump array;

[0012] Based on the ambient temperature, relative humidity and array minimum power-on rate, respectively calculating the cold island effect intensity and the wet island effect intensity;

[0013] The interactive relationship between the cold island effect intensity and the wet island effect intensity is divided into regions according to relative humidity;

[0014] For different interaction areas, the heating performance loss due to the cold and wet island effect is calculated according to the intensity of the cold island effect and the intensity of the wet island effect.

[0015] As a further technical solution, the heating load rate of the air source heat pump array is:

[0016] η1=[(T n -T a ) / (T n -T set )]×100%

[0017] Where η1 is the heating load rate of the air source heat pump array; T a is the ambient temperature; T n The design temperature for heating room; T set Design temperature for heating outdoor.

[0018] As a further technical solution, the intensity of the cold island effect is the difference between the ambient temperature and the inlet air temperature of the array center unit; the calculation model of the intensity of the cold island effect is:

[0019] ΔT=(8.0372+0.45823T a -0.43518RH a +0.15946η o-min -0.0022985T a 2 +0.0036656RH a 2 +0.000030015η o-min 2 -0.0042893T a RH a +0.00060024T a η o-min-0.00066703RH a η o-min )×λ

[0020] Where ΔT is the intensity of the cold island effect; T a is the ambient temperature; RH a is the relative humidity; η o-min is the minimum startup rate of the air source heat pump array; λ is the array spacing correction coefficient.

[0021] As a further technical solution, the intensity of the wet island effect is the difference between the dry-bulb and wet-bulb temperatures of the ambient air and the dry-bulb and wet-bulb temperatures of the inlet air of the array central unit; the calculation model of the intensity of the wet island effect is:

[0022] ΔT wb =(-2.2851+0.32921T a -0.0080392RH a +0.10965η o-min -0.0007249T a 2 +0.00044916RH a 2 -0.00013669η o-min 2 -0.0034141T a RH a -0.0003264T a η o-min -0.0010889RH a η o-min )×λ

[0023] Where, ΔT wb is the intensity of wet island effect; T a is the ambient temperature; RH a is the relative humidity; η o-min is the minimum startup rate of the air source heat pump array; λ is the array spacing correction coefficient.

[0024] As a further technical solution, the process of dividing the interaction between the cold island effect intensity and the wet island effect intensity according to relative humidity is as follows:

[0025] When the relative humidity RH a When ≥70%, the area is divided into cold and wet non-interaction areas;

[0026] When relative humidity is 60% ≤ RH a When the ratio is <70%, the area is divided into a cold-wet weak interaction area;

[0027] When the relative humidity RH aWhen < 60%, the divided area is a cold-wet interactive area.

[0028] As a further technical solution, the process of calculating the cold-wet island effect heating performance loss according to the cold island effect intensity and the wet island effect intensity for different interactive areas is:

[0029] For the cold-wet non-interactive area, the process of calculating the cold-wet island effect heating performance loss is:

[0030]

[0031] In the formula, is the heating performance loss of the cold-wet non-interactive area; ΔT is the cold island effect intensity; ΔT wb is the wet island effect intensity;

[0032] For the cold-wet weak interactive area, the cold-wet island effect heating performance loss is calculated according to the cold island effect intensity and the wet island effect intensity; wherein the process of calculating the cold-wet island effect heating performance loss is:

[0033]

[0034] In the formula, is the cold-wet island effect heating performance loss of the cold-wet weak interactive area;

[0035] For the cold-wet interactive area, the cold-wet island effect loss is calculated according to the cold island effect intensity or the wet island effect intensity, wherein the process of calculating the cold-wet island effect heating performance loss according to the cold island effect intensity is as follows:

[0036]

[0037] In the formula, is the cold-wet island effect heating performance loss of the cold-wet interactive area calculated according to the cold island effect intensity;

[0038] The process of calculating the cold-wet island effect heating performance loss according to the wet island effect intensity is as follows:

[0039]

[0040] In the formula, is the cold-wet island effect heating performance loss of the cold-wet interactive area calculated according to the wet island effect intensity.

[0041] The second aspect of the present application provides an air source heat pump array cold-wet island effect evaluation system.

[0042] An air source heat pump array cold-wet island effect evaluation system comprises:

[0043] The meteorological parameter acquisition module is configured to acquire the ambient temperature and relative humidity data of the air source heat pump array area, and determine the heating indoor design temperature and the heating outdoor design temperature.

[0044] The heating load rate calculation module is configured to calculate the air source heat pump array heating load rate according to the ambient temperature, the heating indoor design temperature and the heating outdoor design temperature.

[0045] The minimum start-up rate calculation module is configured to determine the minimum start-up rate of the air source heat pump array according to the air source heat pump array heating load rate.

[0046] The cold island effect and wet island effect intensity evaluation module is configured to calculate the cold island effect intensity and the wet island effect intensity respectively based on the ambient temperature, the relative humidity and the array minimum start-up rate.

[0047] The interactive region division module is configured to divide the interactive relationship region between the cold island effect intensity and the wet island effect intensity according to the relative humidity.

[0048] The heating performance loss evaluation module is configured to calculate the cold and wet island effect heating performance loss according to the cold island effect intensity and the wet island effect intensity respectively for different interactive regions.

[0049] The third aspect of the present application provides a computer readable storage medium having a program stored thereon, the program being executed by a processor to implement the steps of the cold and wet island effect evaluation method of the air source heat pump array according to the first aspect of the present application.

[0050] The fourth aspect of the present application provides an electronic device comprising a memory, a processor and a program stored on the memory and executable on the processor, wherein the processor executes the program to implement the steps of the cold and wet island effect evaluation method of the air source heat pump array according to the first aspect of the present application.

[0051] The above one or more technical solutions have the following beneficial effects:

[0052] The present application provides a cold and wet island effect evaluation method and system for an air source heat pump array, which accurately evaluates the cold island effect intensity and the wet island effect intensity according to the meteorological parameters of the air source heat pump array region, and further evaluates the cold and wet island effect heating performance loss by dividing the cold and wet non-interactive region, the cold and wet interactive region and the cold and wet weak interactive region according to the environmental relative humidity. The influence of the cold and wet island effect on the air source heat pump array is comprehensively evaluated from the aspects of the air source heat pump operation condition and the heating performance. Meanwhile, the present application provides a reference index for setting the cold and wet island effect critical threshold of the air source heat pump array, and indicates the direction for optimizing the spatial arrangement design and the dynamic operation control strategy of the air source heat pump array.

[0053] Advantages of additional aspects of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0055] Figure 1 This is a flow chart of the method of the first embodiment.

[0056] Figure 2 This is a system structure diagram of the second embodiment. DETAILED DESCRIPTION

[0057] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention belongs.

[0058] It should be noted that the terms used herein are for describing particular embodiments only and are not intended to limit the exemplary embodiments according to the present invention.

[0059] In the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0060] The present invention collects the meteorological parameters (mainly including ambient temperature and relative humidity) of the operating area of ​​the air source heat pump array in real time, combines the indoor design temperature of the heating and the outdoor design temperature, calculates the heating load rate of the air source heat pump array, and thus determines the minimum startup rate of the array. The intensity of the cold island effect and the wet island effect are accurately predicted using the ambient temperature, relative humidity and minimum startup rate. The interactive relationship between the intensity of the cold island effect and the wet island effect is further analyzed, and they are divided into cold and wet interactive areas, cold and wet weak interactive areas and cold and wet non-interactive areas. For different cold and wet interactive zones, the heating performance loss of the cold and wet island effect is evaluated according to the intensity of the cold island effect and the wet island effect. In order to comprehensively evaluate the intensity and loss of the cold and wet island effect of the air source heat pump array, the air source heat pump array can be helped to operate efficiently.

[0061] Example 1

[0062] This embodiment discloses a method for evaluating the cold and wet island effect of an air source heat pump array;

[0063] like Figure 1 As shown, a method for evaluating the cold and wet island effect of an air source heat pump array includes:

[0064] Step S1, obtain the ambient temperature T of the air source heat pump array areaa , relative humidity RH a , determine the indoor design temperature T for heating n and heating outdoor design temperature T set ; Among them, the heating indoor design temperature T n Generally, the outdoor design temperature for heating is 20℃. set Determined according to the design specifications for heating, ventilation and air-conditioning of civil buildings.

[0065] Step S2: according to the ambient temperature T a , heating indoor design temperature T n and heating outdoor design temperature T set The heating load rate η1 of the air source heat pump array is calculated;

[0066] The heating load rate of the air source heat pump array is:

[0067] η1=[(T n -T a ) / (T n -T set )]×100%

[0068] Where η1 is the heating load rate of the air source heat pump array; T a is the ambient temperature; T n The design temperature for heating room; T set Design temperature for heating outdoor.

[0069] Step S3, determining the minimum operating rate η of the air source heat pump array according to the heating load rate η1 of the air source heat pump array o-min When the array operating environment is close to the design operating conditions, the actual array startup rate is equal to the heating load rate η1. However, in severe weather, due to the frequent defrosting operations of the internal units, the actual startup rate is often higher than the heating load rate η1. Therefore, through η o-min =η1 to determine the array minimum startup rate η o-min .

[0070] Step S4, based on the ambient temperature T a , relative humidity RH a and the array minimum startup rate η o-min , calculate the cold island effect intensity ΔT and wet island effect intensity ΔT respectively wb The cold island effect intensity ΔT is the difference between the ambient temperature and the inlet air temperature of the array center unit; the calculation model of the cold island effect intensity is:

[0071] ΔT=(8.0372+0.45823T a -0.43518RH a +0.15946ηo-min -0.0022985T a 2 +0.0036656RH a 2 +0.000030015η o-min 2 -0.0042893T a RH a +0.00060024T a η o-min -0.00066703RH a η o-min )×λ

[0072] Where ΔT is the intensity of the cold island effect; T a is the ambient temperature; RH a is the relative humidity; η o-min is the minimum startup rate of the air source heat pump array; λ is the array spacing correction coefficient.

[0073] The wet island effect intensity ΔT wb is the difference between the dry-bulb and wet-bulb temperatures of the ambient air and the inlet air of the array center unit; the calculation model of the wet island effect intensity is:

[0074] ΔT wb =(-2.2851+0.32921T a -0.0080392RH a +0.10965η o-min -0.0007249T a 2 +0.00044916RH a 2 -0.00013669η o-min 2 -0.0034141T a RH a -0.0003264T a η o-min -0.0010889RH a η o-min )×λ

[0075] Where, ΔT wb is the intensity of wet island effect; T a is the ambient temperature; RH a is the relative humidity; η o-min is the minimum startup rate of the air source heat pump array; λ is the array spacing correction coefficient.

[0076] Step S5,

[0077] The interaction between the cold island effect intensity and the wet island effect intensity is divided according to the relative humidity. Specifically: when the relative humidity RH a When the relative humidity is ≥70%, the area is divided into cold and wet non-interaction areas; when the relative humidity is 60%≤RH a When the relative humidity is less than 70%, the area is divided into cold and wet weak interaction areas; when the relative humidity is RH a When it is <60%, the area is divided into a cold-humid interaction area.

[0078] Step S6: For different interaction areas, the heating performance loss due to the cold and wet island effect is calculated according to the cold island effect intensity and the wet island effect intensity.

[0079] For areas without cold and wet interaction, the calculation process for the heating performance loss due to the cold and wet island effect is as follows:

[0080]

[0081] Where, is the heating performance loss in the area without cold and wet interaction; ΔT is the intensity of the cold island effect; ΔT wb is the intensity of wet island effect;

[0082] For the cold-humid weak interaction area, the heating performance loss due to the cold-humid island effect is calculated based on the intensity of the cold island effect and the wet island effect. The calculation process of the heating performance loss due to the cold-humid island effect is as follows:

[0083]

[0084] Where, The heating performance loss is caused by the cold-humidity island effect in the cold-wet interaction area;

[0085] For the cold-humidity interaction area, the cold-humidity island effect loss is calculated according to the intensity of the cold island effect or the wet island effect. The process of calculating the heating performance loss of the cold-humidity island effect based on the intensity of the cold island effect is as follows:

[0086]

[0087] Where, The heating performance loss of the cold-humidity island effect is calculated based on the intensity of the cold island effect in the cold-humidity interaction area;

[0088] The process of calculating the cooling and wetting island effect heating performance loss based on the wetting island effect intensity is as follows:

[0089]

[0090] Where, The heating performance loss due to the cold-wet island effect is calculated based on the intensity of the wet island effect in the cold-wet interaction area.

[0091] Further, in the embodiment, the evaluation method of the application is also verified by experiments. Specifically, the location of the demonstration project belongs to the cold climate zone, and the outdoor design temperature for heating in winter is-7.6℃, and the indoor design temperature is 20℃. The project is composed of a small heating station formed by array arrangement of 64 air source heat pump units. There are 5 rows, 12 units in the first row, and 13 units in the remaining four rows. The units are closely installed, and the spacing between the rows is 1.74m, and the total land area is 311m 2 .

[0092] The meteorological parameters of the air source heat pump array area are monitored in real time, and three typical working conditions are taken. Among them, the environment temperature T a1 =-4.53℃, T a2 =2.41℃, T a3 =0.24℃, relative humidity RH a1 =75.88%, RH a2 =56.00%, RH a3 =65.69, the indoor design temperature for heating T n =20℃, and the outdoor design temperature for heating T set =-7.6℃. The calculation obtains the cold island effect intensity ΔT1=5.14℃, ΔT2=3.67℃, ΔT3=3.75℃; the wet island effect intensity ΔT wb1 =0.81℃, ΔT wb2 =1.50℃, ΔT wb3 =1.17℃. Finally, the cold and wet island effect heating performance loss of the corresponding cold and wet non-interaction area, cold and wet interaction area and cold and wet weak interaction area is 0.19, 0.12, 0.11, 1.13 respectively.

[0093] Embodiment two

[0094] The embodiment discloses a cold and wet island effect evaluation system of an air source heat pump array.

[0095] As shown in Figure 2 , a cold and wet island effect evaluation system of an air source heat pump array comprises:

[0096] The meteorological parameter acquisition module is configured to acquire the environment temperature and relative humidity data of the air source heat pump array area, and determine the indoor design temperature for heating and the outdoor design temperature for heating;

[0097] The heating load rate calculation module is configured to calculate the air source heat pump array heating load rate according to the environment temperature, the indoor design temperature for heating and the outdoor design temperature for heating;

[0098] The minimum start-up rate calculation module is configured to determine the minimum start-up rate of the air source heat pump array according to the air source heat pump array heating load rate.

[0099] The cold island effect and wet island effect intensity evaluation module is configured to: calculate the cold island effect intensity and the wet island effect intensity respectively based on the ambient temperature, relative humidity and array minimum power-on rate;

[0100] The interactive region division module is configured to: divide the regions into interactive relationships between the cold island effect intensity and the wet island effect intensity according to the relative humidity;

[0101] The heating performance loss evaluation module is configured to calculate the heating performance loss of the cold and wet island effect according to the cold island effect intensity and the wet island effect intensity for different interaction areas.

[0102] Among them, in the heating load rate calculation module, the heating load rate of the air source heat pump array is:

[0103] η1=[(T n -T a ) / (T n -T set )]×100%

[0104] Where η1 is the heating load rate of the air source heat pump array; T a is the ambient temperature; T n The design temperature for heating room; T set Design temperature for heating outdoor.

[0105] Example 3

[0106] The purpose of this embodiment is to provide a computer-readable storage medium.

[0107] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the method for evaluating the cold and wet island effect of an air source heat pump array as described in Example 1.

[0108] Example 4

[0109] The purpose of this embodiment is to provide an electronic device.

[0110] An electronic device includes a memory, a processor, and a program stored in the memory and executable on the processor. When the processor executes the program, the steps of the method for evaluating the cold and wet island effect of an air source heat pump array as described in Example 1 are implemented.

[0111] The steps involved in the apparatuses of the above embodiments two, three and four correspond to the method of embodiment one, and the specific implementation can refer to the relevant description of embodiment one. The term "computer readable storage medium" should be understood as including a single medium or multiple media of one or more instruction sets; it should also be understood as including any medium capable of storing, encoding or carrying the instruction set for execution by the processor and causing the processor to perform any of the methods in the present application.

[0112] Those skilled in the art should understand that each module or step of the present application described above can be realized by a general computer device, alternatively, they can be realized by program codes executable by a computing device, so that they can be stored in a storage device for execution by a computing device, or they can be respectively manufactured into each integrated circuit module, or a plurality of modules or steps among them can be manufactured into a single integrated circuit module to realize. The present application is not limited to any specific combination of hardware and software.

[0113] Although the specific embodiments of the present application are described above in combination with the drawings, it is not a limitation on the scope of protection of the present application, and those skilled in the art should understand that various modifications or changes made by those skilled in the art on the basis of the technical solutions of the present application without creative labor are still within the scope of protection of the present application.

Claims

1. A method for evaluating the cold and wet island effect of an air source heat pump array, characterized in that: include: Obtain ambient temperature and relative humidity data for the air source heat pump array area to determine the indoor design temperature for heating and the outdoor design temperature for heating; Calculate the heating load rate of the air source heat pump array according to the ambient temperature, the heating indoor design temperature and the heating outdoor design temperature; Determining a minimum start-up rate of the air source heat pump array according to the heating load rate of the air source heat pump array; Based on the ambient temperature, relative humidity and array minimum power-on rate, respectively calculating the cold island effect intensity and the wet island effect intensity; The interactive relationship between the cold island effect intensity and the wet island effect intensity is divided into regions according to relative humidity; For different interaction areas, the heating performance loss of the cold and wet island effect is calculated according to the intensity of the cold island effect and the wet island effect; The cold island effect intensity is the difference between the ambient temperature and the inlet air temperature of the array center unit. The calculation model of the cold island effect intensity is: ΔT=(8.0372+0.45823T a -0.43518RH a +0.15946η o-min -0.0022985T a 2 +0.0036656RH a 2 +0.000030015η o-min 2 -0.0042893T a RH a +0.00060024T a or o-min -0.00066703RH a or o-min )×λ Where ΔT is the intensity of the cold island effect; T a is the ambient temperature; RH a is the relative humidity; η o-min is the minimum startup rate of the air source heat pump array; λ is the array spacing correction coefficient; The intensity of the wet island effect is the difference between the dry-bulb and wet-bulb temperatures of the ambient air and the inlet air of the array central unit. The calculation model of the intensity of the wet island effect is: ΔT wb =(-2.2851+0.32921T a -0.0080392RH a +0.10965η o-min -0.0007249T a 2 +0.00044916RH a 2 -0.00013669th o-min 2 -0.0034141T a RH a -0.0003264T a or o-min -0.0010889RH a or o-min )×λ Where, ΔT wb is the intensity of wet island effect; T a is the ambient temperature; RH a is the relative humidity; η o-min is the minimum startup rate of the air source heat pump array; λ is the array spacing correction coefficient.

2. The method for evaluating the cold and wet island effect of an air source heat pump array according to claim 1, wherein: The heating load rate of the air source heat pump array is: η1=[(T n -T a ) / (T n -t set )]×100% Where η1 is the heating load rate of the air source heat pump array; T a is the ambient temperature; T n The design temperature for heating room; T set Design temperature for heating outdoor.

3. The method for evaluating the cold and wet island effect of an air source heat pump array according to claim 1, wherein: The process of dividing the interaction between the cold island effect intensity and the wet island effect intensity according to relative humidity is as follows: When the relative humidity RH a When ≥70%, the area is divided into cold and wet non-interaction areas; When relative humidity is 60% ≤ RH a When the ratio is <70%, the area is divided into a cold-wet weak interaction area; When the relative humidity RH a When it is <60%, the area is divided into a cold-humid interaction area.

4. The method for evaluating the cold and wet island effect of an air source heat pump array according to claim 1, wherein: The process of calculating the heating performance loss of the cold and wet island effect according to the cold island effect intensity and the wet island effect intensity for different interaction areas is as follows: For areas without cold and wet interaction, the calculation process for the heating performance loss due to the cold and wet island effect is as follows: Where, is the heating performance loss in the area without cold and wet interaction; ΔT is the intensity of the cold island effect; ΔT wb is the intensity of wet island effect; For the cold-humid weak interaction area, the heating performance loss due to the cold-humid island effect is calculated based on the intensity of the cold island effect and the wet island effect. The calculation process of the heating performance loss due to the cold-humid island effect is as follows: Where, The heating performance loss is caused by the cold-humidity island effect in the cold-wet interaction area; For the cold-humidity interaction area, the cold-humidity island effect loss is calculated according to the intensity of the cold island effect or the wet island effect. The process of calculating the heating performance loss of the cold-humidity island effect based on the intensity of the cold island effect is as follows: Where, The heating performance loss of the cold-humidity island effect is calculated based on the intensity of the cold island effect in the cold-humidity interaction area; The process of calculating the cooling and wetting island effect heating performance loss based on the wetting island effect intensity is as follows: Where, The heating performance loss due to the cold-wet island effect is calculated based on the intensity of the wet island effect in the cold-wet interaction area.

5. A cold and wet island effect evaluation system for an air source heat pump array, characterized in that: include: The meteorological parameter acquisition module is configured to: obtain ambient temperature and relative humidity data of the air source heat pump array area to determine the heating indoor design temperature and the heating outdoor design temperature; A heating load rate calculation module is configured to calculate the heating load rate of the air source heat pump array according to the ambient temperature, the heating indoor design temperature and the heating outdoor design temperature; A minimum operating rate calculation module is configured to: determine the minimum operating rate of the air source heat pump array according to the heating load rate of the air source heat pump array; The cold island effect and wet island effect intensity evaluation module is configured to: calculate the cold island effect intensity and the wet island effect intensity respectively based on the ambient temperature, relative humidity and array minimum power-on rate; The interactive region division module is configured to: divide the regions into interactive relationships between the cold island effect intensity and the wet island effect intensity according to the relative humidity; The heating performance loss evaluation module is configured to: calculate the heating performance loss of the cold and wet island effect according to the cold island effect intensity and the wet island effect intensity for different interaction areas; The cold island effect intensity is the difference between the ambient temperature and the inlet air temperature of the array center unit. The calculation model of the cold island effect intensity is: ΔT=(8.0372+0.45823T a -0.43518RH a +0.15946η o-min -0.0022985T a 2 +0.0036656RH a 2 +0.000030015η o-min 2 -0.0042893T a RH a +0.00060024T a or o-min -0.00066703RH a or o-min )×λ Where ΔT is the intensity of the cold island effect; T a is the ambient temperature; RH a is the relative humidity; η onmin is the minimum startup rate of the air source heat pump array; λ is the array spacing correction coefficient; The intensity of the wet island effect is the difference between the dry-bulb and wet-bulb temperatures of the ambient air and the inlet air of the array central unit. The calculation model of the intensity of the wet island effect is: ΔT wb =(-2.2851+0.32921T a -0.0080392RH a +0.10965η o-min -0.0007249T a 2 +0.00044916RH a 2 -0.00013669th o-min 2 -0.0034141T a RH a -0.0003264T a or o-min -0.0010889RH a or o-min )×λ Where, ΔT wb is the intensity of wet island effect; T a is the ambient temperature; RH a is the relative humidity; η o-min is the minimum startup rate of the air source heat pump array; λ is the array spacing correction coefficient.

6. The cold and humidity island effect evaluation system for an air source heat pump array according to claim 5, characterized in that: The heating load rate of the air source heat pump array is: η1=[(T n -T a ) / (T n -t set )]×100% Where η1 is the heating load rate of the air source heat pump array; T a is the ambient temperature; T m The design temperature for heating room; T set Design temperature for heating outdoor.

7. A computer-readable storage medium having a program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method for evaluating the cold and wet island effect of an air source heat pump array as described in any one of claims 1 to 4 are implemented.

8. An electronic device comprising a memory, a processor, and a program stored in the memory and executable on the processor, wherein: When the processor executes the program, the steps of the method for evaluating the cold and wet island effect of an air source heat pump array as described in any one of claims 1 to 4 are implemented.

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