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

Abstract

The invention provides a cold and wet island effect evaluation method and system of an air source heat pump array, and belongs to the field of air source heat pump operation performance evaluation. The method comprises the steps that the environment temperature and the relative humidity of an air source heat pump array area are obtained, and the heating indoor design temperature and the heating outdoor design temperature are determined; according to the environment temperature, the heating indoor design temperature and the heating outdoor design temperature, the heating load rate of the air source heat pump array is obtained; the minimum starting rate of the air source heat pump array is determined according to the heating load rate of the air source heat pump array; calculating cold island effect intensity and wet island effect intensity based on the environment temperature, the relative humidity and the array minimum starting rate; carrying out interaction relation region division between the cold island effect intensity and the wet island effect intensity according to the relative humidity; and aiming at different interaction areas, calculating the cold and wet island effect heating performance loss according to the cold island effect intensity and the wet island effect intensity, and evaluating the cold and wet island effect intensity and the heating performance loss of the air source heat pump array.

Description

Technical Field

[0001] The present invention belongs to the technical field of the operation performance evaluation of air source heat pumps, and particularly relates to an evaluation method and system for the cold and wet island effect of an air source heat pump array, and evaluates the intensity of the cold and wet island effect of the air source heat pump array and the loss of heating performance. Background Technique

[0002] The statements in this part only provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] As a mature and efficient renewable energy technology, air source heat pumps utilize the heat source of air, which is "inexhaustible and renewable", to achieve the heating concept of "heat exists everywhere, is available at any time, and can be taken as needed", and play an important role in the field of clean heating of buildings. In recent years, with the gradual penetration of the concepts of clean heating and "low carbon", air source heat pumps have gradually become the main choice to replace traditional coal-fired heating technologies, and their application scope and scale have been continuously expanding.

[0004] As the scale of the air source heat pump heating scenario expands from the household level to the million-square-meter level, air source heat pump arrays have become the mainstream layout form. However, when the array scale is large, due to the influence of the air reflux effect, a local microclimate of "low temperature and high humidity", that is, the cold and wet island effect, is extremely likely to form in the central area of the array. This not only reduces the energy quality of the air entering the unit, but also significantly increases the frosting risk and the loss of frosting and defrosting of the unit, thereby deteriorating the heating performance of the unit. At present, there is still a lack of a systematic and accurate evaluation method for the intensity of the cold and wet island effect and the resulting performance loss, resulting in difficulties in formulating clear coping strategies and threshold standards in advance during the array design and operation stages, and thus being unable to effectively alleviate the adverse effects of the cold and wet island effect on the operation performance of the air source heat pump array. Summary of the Invention

[0005] To overcome the deficiencies of the above-mentioned prior art, the present invention provides an evaluation method and system for the cold and wet island effect of an air source heat pump array. Based on the collection of meteorological parameters in the area of the air source heat pump array, the array load rate and startup rate are calculated, the dynamic changes in the intensity of the cold island effect and the wet island effect are accurately predicted, and the cold and wet interaction relationship between the two is deeply analyzed, so as to achieve a quantitative evaluation of the heating performance loss caused by the cold and wet island effect.

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

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

[0008] An evaluation method for the cold and wet island effect of an air source heat pump array includes:

[0009] Obtain the environmental temperature and relative humidity data of the air source heat pump array area, and determine the heating indoor design temperature and heating outdoor design temperature;

[0010] Calculate the heating load rate of the air source heat pump array based on the environmental temperature, heating indoor design temperature, and heating outdoor design temperature;

[0011] Determine the minimum startup 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 environmental temperature, relative humidity, and array minimum startup rate, calculate the cold island effect intensity and wet island effect intensity respectively;

[0013] Divide the interaction relationship area between the cold island effect intensity and the wet island effect intensity according to the relative humidity;

[0014] For different interaction areas, calculate the cold and wet island effect heating performance loss according to the cold island effect intensity and the wet island effect intensity respectively.

[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] In the formula, η1 is the heating load rate of the air source heat pump array; T a is the environmental temperature; T n is the heating indoor design temperature; T set is the heating outdoor design temperature.

[0018] As a further technical solution, the cold island effect intensity is the difference between the environmental temperature and the inlet air temperature of the central unit of the array; the calculation model of the cold island effect intensity 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] Wherein, 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 and wet bulb temperature difference of the ambient air and the dry and wet bulb temperature difference of the air entering the central unit of the array; 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] Wherein, ΔT wb is the intensity of the 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 relationship area between the intensity of the cold island effect and the intensity of the wet island effect according to the relative humidity is:

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

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

[0027] When the relative humidity RH aWhen it is <60%, the divided area is the cold and wet interaction area.

[0028] As a further technical solution, 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:

[0029] For the cold and wet non-interaction area, the calculation process of the heating performance loss of the cold and wet island effect is as follows:

[0030]

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

[0032] For the cold and wet weak interaction area, the heating performance loss of the cold and wet island effect is jointly calculated according to the cold island effect intensity and the wet island effect intensity; among them, the calculation process of the heating performance loss of the cold and wet island effect is as follows:

[0033]

[0034] In the formula, is the heating performance loss of the cold and wet island effect in the cold and wet weak interaction area;

[0035] For the cold and wet interaction area, the loss of the cold and wet island effect is calculated respectively according to the cold island effect intensity or the wet island effect intensity. Among them, the process of calculating the heating performance loss of the cold and wet island effect based on the cold island effect intensity is as follows:

[0036]

[0037] In the formula, is the heating performance loss of the cold and wet island effect in the cold and wet interaction area calculated based on the cold island effect intensity;

[0038] The process of calculating the heating performance loss of the cold and wet island effect based on the wet island effect intensity is as follows:

[0039]

[0040] In the formula, is the heating performance loss of the cold and wet island effect in the cold and wet interaction area calculated based on the wet island effect intensity.

[0041] The second aspect of the present invention provides a cold and wet island effect evaluation system for an air source heat pump array.

[0042] A cold and wet island effect evaluation system for an air source heat pump array includes:

[0043] A meteorological parameter acquisition module, configured to: acquire environmental temperature and relative humidity data in the area of the air source heat pump array, and determine the heating indoor design temperature and the heating outdoor design temperature;

[0044] A heating load rate calculation module, configured to: calculate the heating load rate of the air source heat pump array according to the environmental temperature, the heating indoor design temperature, and the heating outdoor design temperature;

[0045] A minimum startup rate calculation module, configured to: determine the minimum startup rate of the air source heat pump array according to the heating load rate of the air source heat pump array;

[0046] A cold island effect and wet island effect intensity evaluation module, configured to: calculate the cold island effect intensity and the wet island effect intensity respectively based on the environmental temperature, the relative humidity, and the minimum startup rate of the array;

[0047] An interaction area division module, configured to: divide the interaction relationship area between the cold island effect intensity and the wet island effect intensity according to the relative humidity;

[0048] A heating performance loss evaluation module, configured to: calculate the heating performance loss of the cold and wet island effect for different interaction areas respectively according to the cold island effect intensity and the wet island effect intensity.

[0049] The third aspect of the present invention provides a computer-readable storage medium, on which a program is stored, and when the program is executed by a processor, the steps in a cold and wet island effect evaluation method of an air source heat pump array as described in the first aspect of the present invention are implemented.

[0050] The fourth aspect of the present invention provides an electronic device, including a memory, a processor, and a program stored on the memory and executable on the processor. When the processor executes the program, the steps in a cold and wet island effect evaluation method of an air source heat pump array as described in the first aspect of the present invention are implemented.

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

[0052] The present invention proposes a cold and wet island effect evaluation method and system for an air source heat pump array. Based on the meteorological parameters in the area of the air source heat pump array, the cold island effect intensity and the wet island effect intensity are accurately evaluated. And through the environmental relative humidity, the cold and wet non-interaction area, the cold and wet interaction area, and the cold and wet weak interaction area are divided, and the heating performance loss of the cold and wet island effect is further evaluated. From two aspects of the operating conditions and heating performance of the air source heat pump, the impact of the cold and wet island effect on the air source heat pump array is comprehensively evaluated. At the same time, it also provides a reference index for setting the critical threshold of the cold and wet island effect of the air source heat pump array, and points out the direction for optimizing the spatial layout design and 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, become apparent in part from the following description, or be learned through the practice of the present invention. Description of the Drawings

[0054] The attached drawings forming a part of the specification of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0055] Figure 1 It is a flowchart of the method for the first embodiment.

[0056] Figure 2 It is a system structure diagram of the second embodiment. Detailed Description of the Invention

[0057] It should be noted that the following detailed description is exemplary and is intended to provide further illustration of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

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

[0059] In the case of no conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0060] The present invention calculates the heating load rate of the air source heat pump array by collecting the meteorological parameters (mainly including ambient temperature and relative humidity) in the operation area of the air source heat pump array in real time, combining the indoor design temperature and outdoor design temperature for heating, so as to determine the minimum startup rate of the array. By using the ambient temperature, relative humidity and minimum startup rate, the intensities of the cold island effect and the wet island effect are accurately predicted. Further analyze the interaction relationship between the intensities of the cold island effect and the wet island effect, and divide it into cold-wet interaction area, cold-wet weak interaction area and cold-wet non-interaction area. For different cold-wet interaction partitions, evaluate the heating performance loss of the cold-wet island effect respectively according to the intensities of the cold island effect and the wet island effect. To comprehensively evaluate the intensity and loss of the cold-wet island effect of the air source heat pump array and assist the efficient operation of the air source heat pump array.

[0061] Embodiment 1

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

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

[0064] Step S1, obtaining the ambient temperature T of the air source heat pump array areaa 、Relative humidity RH a , determine the indoor design heating temperature T n and the outdoor design heating temperature T set ; among them, the indoor design heating temperature T n is generally taken as 20°C, and the outdoor design heating temperature T set is determined according to the Code for Heating, Ventilation and Air Conditioning Design of Civil Buildings.

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

[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] In the formula, η1 is the heating load rate of the air source heat pump array; T a is the ambient temperature; T n is the indoor design heating temperature; T set is the outdoor design heating temperature.

[0069] Step S3, determine the minimum startup rate η o-min of the air source heat pump array according to the heating load rate η1 of the air source heat pump array; when the array operation environment is close to the design condition, the actual startup rate of the array is equal to the heating load rate η1, and in bad weather, due to the frequent defrosting operation 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 minimum startup rate η o-min of the array.

[0070] Step S4, based on the ambient temperature T a , relative humidity RH a and the minimum startup rate η o-min of the array, calculate the cold island effect intensity ΔT and the wet island effect intensity ΔT wb respectively. Among them, the cold island effect intensity ΔT is the difference between the ambient temperature and the inlet air temperature of the central unit of the array; 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] In the formula, 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 intensity of the wet island effect ΔT wb is the difference between the dry and wet bulb temperature difference of the ambient air and the dry and wet bulb temperature difference of the air inlet of the unit at the center of the array; the calculation model of the intensity of the wet island effect 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] In the formula, ΔT wb is the intensity of the 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] Divide the interaction relationship area between the cold island effect intensity and the wet island effect intensity according to the relative humidity. Specifically: when the relative humidity RH a ≥70%, the divided area is the cold and wet non-interaction area; when the relative humidity 60% ≤ RH a <70%, the divided area is the cold and wet weak interaction area; when the relative humidity RH a <60%, the divided area is the cold and wet interaction area.

[0078] Step S6, for different interaction areas, calculate the heating performance loss of the cold and wet island effect respectively according to the cold island effect intensity and the wet island effect intensity.

[0079] For the cold and wet non-interaction area, the calculation process of the heating performance loss of the cold and wet island effect is as follows:

[0080]

[0081] In the formula, is the heating performance loss of the cold and wet non-interaction area; ΔT is the cold island effect intensity; ΔT wb is the wet island effect intensity;

[0082] For the cold and wet weak interaction area, calculate the heating performance loss of the cold and wet island effect jointly according to the cold island effect intensity and the wet island effect intensity; among them, the calculation process of the heating performance loss of the cold and wet island effect is as follows:

[0083]

[0084] In the formula, is the heating performance loss of the cold and wet island effect in the cold and wet weak interaction area;

[0085] For the cold and wet interaction area, calculate the cold and wet island effect loss respectively according to the cold island effect intensity or the wet island effect intensity. Among them, the process of calculating the heating performance loss of the cold and wet island effect based on the cold island effect intensity is as follows:

[0086]

[0087] In the formula, is the heating performance loss of the cold and wet island effect calculated based on the cold island effect intensity in the cold and wet interaction area;

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

[0089]

[0090] In the formula, is the heating performance loss of the cold and wet island effect calculated based on the wet island effect intensity in the cold and wet interaction area.

[0091] Further, in this embodiment, the evaluation method of the present invention is also verified through experiments. Specifically, the location of the demonstration project belongs to a cold climate zone, with an outdoor design temperature of -7.6°C and an indoor design temperature of 20°C for winter heating. The project consists of a small heating station composed of an array of 64 air source heat pump units. There are a total of 5 rows, with 12 units arranged in the first row and 13 units arranged in the remaining four rows. The units are closely installed, and the spacing between each row is 1.74 m, with a total floor area of 311 m 2 .

[0092] The meteorological parameters in the area of the air source heat pump array are monitored in real time, and 3 typical working conditions are selected. Among them, the ambient temperature T a1 =-4.53°C, T a2 =2.41°C, T a3 =0.24°C, the relative humidity RH a1 =75.88%, RH a2 =56.00%, RH a3 =65.69, the indoor design temperature for heating T n =20°C, and the outdoor design temperature for heating T set =-7.6°C. The cold island effect intensities are calculated as ΔT1 = 5.14°C, ΔT2 = 3.67°C, and ΔT3 = 3.75°C; the wet island effect intensities are ΔT wb1 =0.81°C, ΔT wb2 =1.50°C, and ΔT wb3 =1.17°C. Finally, the heat production performance losses of the cold and wet non-interaction area, cold and wet interaction area, and cold and wet weak interaction area are calculated as 0.19, 0.12, 0.11, and 1.13 respectively.

[0093] Embodiment 2

[0094] This embodiment discloses an evaluation system for the cold and wet island effect of an air source heat pump array;

[0095] As Figure 2 shown, an evaluation system for the cold and wet island effect of an air source heat pump array includes:

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

[0097] A heating load rate calculation module, configured to: calculate the heating load rate of the air source heat pump array according to the ambient temperature, the indoor design temperature for heating, and the outdoor design temperature for heating;

[0098] A minimum start-up rate calculation module, configured to: determine the minimum start-up rate of the air source heat pump array according to the heating load rate of the air source heat pump array;

[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 the minimum startup rate of the array;

[0100] The interaction area division module is configured to: divide the interaction relationship area 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 effects respectively 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] In the formula, η1 is the heating load rate of the air source heat pump array; T a is the ambient temperature; T n is the indoor design temperature for heating; T set is the outdoor design temperature for heating.

[0105] Example 3

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

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

[0108] Example 4

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

[0110] An electronic device, including a memory, a processor, and a program stored on the memory and executable on the processor, and when the processor executes the program, it implements the steps in a cold and wet island effect evaluation method of an air source heat pump array as described in Example 1.

[0111] In the devices of the above second, third, and fourth embodiments, the steps involved correspond to those of the first method embodiment. For the specific implementation, reference may be made to the relevant description part of the first embodiment. The term "computer-readable storage medium" should be understood to include a single medium or multiple media containing one or more instruction sets; it should also be understood to include any medium that can store, encode, or carry an instruction set for execution by a processor and cause the processor to execute any method in the present invention.

[0112] Those skilled in the art should understand that the above-mentioned modules or steps of the present invention can be implemented by a general computer device. Optionally, they can be implemented by program codes executable by a computing device, so that they can be stored in a storage device for execution by the computing device, or they can be separately fabricated into individual integrated circuit modules, or multiple modules or steps among them can be fabricated into a single integrated circuit module for implementation. The present invention is not limited to any specific combination of hardware and software.

[0113] Although the specific implementation of the present invention has been described above in conjunction with the accompanying drawings, it is not a limitation on the protection scope of the present invention. Those skilled in the art should understand that, based on the technical solution of the present invention, various modifications or deformations that can be made by those skilled in the art without creative efforts are still within the protection scope of the present invention.

Claims

1. An evaluation method for the cold and wet island effect of an air source heat pump array, characterized in that, Including: Obtain the ambient temperature and relative humidity data of the air source heat pump array area, and determine the heating indoor design temperature and heating outdoor design temperature; Calculate the heating load rate of the air source heat pump array based on the ambient temperature, heating indoor design temperature, and heating outdoor design temperature; Determine the minimum startup 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 the minimum startup rate of the array, calculate the cold island effect intensity and the wet island effect intensity respectively; Divide the interaction relationship area between the cold island effect intensity and the wet island effect intensity according to the relative humidity; For different interaction areas, 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 respectively.

2. The evaluation method for the cold and humid 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% In the formula, η1 is the heating load rate of the air source heat pump array; T a is the ambient temperature; T n is the indoor design temperature for heating; T set is the outdoor design temperature for heating.

3. The cold and wet island effect evaluation method of an air source heat pump array according to claim 1, characterized in that, The cold island effect intensity is the difference between the ambient temperature and the inlet air temperature of the central unit of the array; 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 η o-min -0.00066703RH a η o-min )×λ In the formula, ΔT is the cold island effect intensity; 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.

4. The evaluation method for the cold and humid island effect of an air source heat pump array according to claim 1, characterized in that, The wet island effect intensity is the difference between the dry and wet bulb temperature difference of the ambient air and the dry and wet bulb temperature difference of the inlet air of the central unit of the array; the calculation model of the wet island effect intensity is: 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 where ΔT wb is the intensity of the 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 factor.

5. The cold and humid island effect evaluation method of an air source heat pump array according to claim 1, wherein The process of dividing the interaction relationship area between the cold island effect intensity and the wet island effect intensity according to the relative humidity is: When the relative humidity RH a ≥ 70%, the divided area is a cold and humid non-interaction area; When the relative humidity 60% ≤ RH a <70%, the divided area is a cold and wet weak interaction area; When the relative humidity RH a < 60%, the divided area is a cold and wet interaction area.

6. The evaluation method of the cold and humid 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 for different interaction areas according to the cold island effect intensity and the wet island effect intensity respectively is: For the non-interaction area of cold and wet, the calculation process of the heating performance loss of the cold and wet island effect is: In the formula, is the heating performance loss in the cold and wet non-interaction area; ΔT is the intensity of the cold island effect; ΔT wb is the intensity of the wet island effect; For the weak interaction area of cold and wet, calculate the heating performance loss of the cold and wet island effect jointly according to the cold island effect intensity and the wet island effect intensity; among them, the calculation process of the heating performance loss of the cold and wet island effect is: In the formula, is the heating performance loss of the cold and wet island effect in the cold and wet weak interaction region; For the interaction area of cold and wet, calculate the loss of the cold and wet island effect according to the cold island effect intensity or the wet island effect intensity respectively. Among them, the process of calculating the heating performance loss of the cold and wet island effect based on the cold island effect intensity is as follows: In the formula, is the heating performance loss of the cold and wet island effect calculated based on the intensity of the cold island effect in the cold and wet interaction area; The process of calculating the heating performance loss of the cold and wet island effect based on the wet island effect intensity is as follows: In the formula, is the heating performance loss of the cold and wet island effect calculated based on the intensity of the wet island effect in the cold and wet interaction area.

7. An evaluation system for the cold and wet island effect of an air source heat pump array, characterized in that, Including: A cold and wet island effect evaluation system for an air source heat pump array, including: A meteorological parameter acquisition module, configured to: obtain the ambient temperature and relative humidity data of the air source heat pump array area, and determine the heating indoor design temperature and heating outdoor design temperature; A heating load rate calculation module, configured to: calculate the heating load rate of the air source heat pump array based on the ambient temperature, heating indoor design temperature, and heating outdoor design temperature; A minimum startup rate calculation module, configured to: determine the minimum startup rate of the air source heat pump array according to the heating load rate of the air source heat pump array; A cold island effect and wet island effect intensity evaluation module, configured to: calculate the cold island effect intensity and the wet island effect intensity respectively based on the ambient temperature, relative humidity, and the minimum startup rate of the array; An interaction area division module, configured to: divide the interaction relationship area between the cold island effect intensity and the wet island effect intensity according to the relative humidity; A heating performance loss evaluation module, configured to: calculate the heating performance loss of the cold and wet island effect for different interaction areas according to the cold island effect intensity and the wet island effect intensity respectively.

8. The cold and wet island effect evaluation system of an air source heat pump array according to claim 7, 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 ratio of the air source heat pump array; T a is the ambient temperature; T n is the indoor design temperature for heating; T set is the outdoor design temperature for heating.

9. A computer-readable storage medium having a program stored thereon, characterized in that, When the program is executed by the processor, it implements the steps in the cold and wet island effect evaluation method of an air source heat pump array according to any one of claims 1-6.

10. An electronic device, comprising a memory, a processor, and a program stored on the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps in the cold and wet island effect evaluation method of an air source heat pump array according to any one of claims 1-6.

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