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Method and device for determining wind speed distribution of surface of heat exchanger and air conditioning equipment

A determination method and heat exchanger technology, applied in lighting and heating equipment, heating methods, space heating and ventilation, etc., can solve the problem of slow acquisition of wind speed distribution

Active Publication Date: 2021-04-13
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of this application provides a method for determining the wind speed distribution on the surface of the heat exchanger, which can solve the problem that the acquisition speed of the existing wind speed distribution is too slow

Method used

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  • Method and device for determining wind speed distribution of surface of heat exchanger and air conditioning equipment
  • Method and device for determining wind speed distribution of surface of heat exchanger and air conditioning equipment
  • Method and device for determining wind speed distribution of surface of heat exchanger and air conditioning equipment

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Embodiment 1

[0038] In the existing wind speed distribution acquisition methods, the wind speed distribution is usually obtained by three-dimensional computational fluid dynamics and other methods. However, due to the large amount of calculation required for three-dimensional calculation, it takes a long time to calculate the wind speed distribution using this method, making it difficult to obtain the wind speed distribution. Meet the needs of fast simulation. In order to solve the above technical problems, the embodiment of the present application provides a method for determining the wind speed distribution on the surface of the heat exchanger. In this method, the process of air flowing through the tube-fin heat exchanger is simplified to Porous media flow. Considering that the heat exchanger pipes are arranged horizontally, the uneven distribution of surface wind speed is mainly caused by the different distances from the fan in the height direction, and the wind speed at the same height...

Embodiment 2

[0101] Corresponding to the method for determining the wind speed distribution on the surface of the heat exchanger in the above embodiment, image 3 It shows a structural block diagram of the device for determining the wind speed distribution on the surface of the heat exchanger provided by the embodiment of the present application, wherein the heat exchanger is a tube-fin structure, and the device for determining the wind speed distribution on the surface of the heat exchanger can be applied to air-conditioning equipment In , for ease of description, only the parts related to the embodiment of the present application are shown.

[0102] refer to image 3 , the wind speed distribution determination device 3 on the surface of the heat exchanger comprises:

[0103] A predicted static pressure value determination unit 31 is configured to determine a predicted static pressure value according to the fan parameters of the heat exchanger.

[0104] Wherein, different heat exchanger...

Embodiment 3

[0144] Figure 4 It is a schematic structural diagram of an air conditioner provided by an embodiment of the present application. Such as Figure 4 As shown, the air conditioner 4 of this embodiment includes: at least one processor 40 ( Figure 4 Only one processor is shown in ), a memory 41 and a computer program 42 stored in the above-mentioned memory 41 and operable on the above-mentioned at least one processor 40. When the above-mentioned processor 40 executes the above-mentioned computer program 42, the above-mentioned first embodiment is realized Steps in any of the various method embodiments.

[0145] The above-mentioned air conditioner 4 may be computing devices such as desktop computers, notebooks, palmtop computers, and cloud servers. The air conditioner may include, but not limited to, a processor 40 and a memory 41 . Those skilled in the art can understand that, Figure 4 It is only an example of the air conditioner 4 and does not constitute a limitation to th...

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Abstract

The invention is applicable to the technical field of wind speed distribution determination, and provides a method and device for determining wind speed distribution of the surface of a heat exchanger and air conditioning equipment. The method comprises the following steps: determining a static pressure prediction value; determining a first pressure field; determining candidate wind speed distribution of the surface of the heat exchanger according to the structural parameters of the heat exchanger and the first pressure field; according to the structure parameters and the candidate wind speed distribution of the heat exchanger, determining one-dimensional vertical direction speed distribution of the flow channel section of the heat exchanger; determining a second pressure field according to the speed distribution in the vertical direction, the structure parameters and the air density; if the difference between the first pressure field and the second pressure field is smaller than a preset value, determining the total air volume of the heat exchanger and the corresponding fan static pressure; and if the difference between the static pressure of the fan and the static pressure prediction value is smaller than a preset value, taking the candidate wind speed distribution as final wind speed distribution of the surface of the heat exchanger. Through the method, the determination speed of wind speed distribution can be improved.

Description

technical field [0001] The present application belongs to the technical field of determining wind speed distribution, and in particular relates to a method, a device, an air conditioner and a computer-readable storage medium for determining the wind speed distribution on the surface of a heat exchanger. Background technique [0002] The heat exchanger is an important component of the air conditioning equipment system, and the efficiency of the heat exchanger directly affects the cooling and heating capabilities of the air conditioning equipment system. Among them, the heat transfer resistance of the outside air is the main factor restricting its performance. At present, the tube-fin type is usually used to increase the heat transfer area, and the forced convection is formed by the fan to increase the heat transfer coefficient of the air side. [0003] In high-power commercial multi-split systems, top-discharge outdoor units are widely used because of their larger heat exchan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/28F24F11/871G06F113/08G06F119/08G06F119/14
CPCG06F30/28F24F11/871G06F2113/08G06F2119/14G06F2119/08
Inventor 黄一也孙西辉
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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