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Fan system and its control method, unit

A fan system and fan technology, applied in the fan system and its control method, and the field of units, can solve problems such as low heat exchange efficiency, and achieve the effects of improving heat exchange efficiency and solving low heat exchange efficiency.

Active Publication Date: 2020-05-19
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a fan system, its control method and unit, to at least solve the problem of low heat transfer efficiency of the existing fan layout in the prior art

Method used

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  • Fan system and its control method, unit
  • Fan system and its control method, unit
  • Fan system and its control method, unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] In the preferred embodiment 1 of the present invention, a fan system is provided, which can be directly applied to various air conditioners, and can also be applied to other devices that require heat exchange. Specifically, the fan system includes:

[0036] The multiple fans located directly in front of the heat exchanger include the first group of fans, the second group of fans, and the third group of fans; wherein, the second group of fans is located between the first group of fans and the third group of fans, and the second group of fans is located between the first group of fans and the third group of fans. The distance between the second group of fans and the heat exchanger is greater than the distance between the first group of fans and the heat exchanger, and greater than the distance between the third group of fans and the heat exchanger.

[0037] In the above embodiment, the fans are divided into multiple groups, and the distance between the fan group and the h...

Embodiment 2

[0047] Based on the fan system provided in the above-mentioned embodiment 1, a fan system control method is provided in the preferred embodiment 1 of the present invention, specifically, image 3 An alternative flowchart showing the method, such as image 3 As shown, the method includes the following steps S302-S306:

[0048] S302: Detect whether the heat transfer capacity of the fan system meets the heat transfer requirement;

[0049] S304: When the heat exchange demand is not met, adopt the first adjustment strategy to adjust the speed of the fan system to meet the heat exchange demand;

[0050] S306: When the heat exchange requirement is met, the second adjustment strategy is used to adjust the speed of the fan system, so as to make the fan system heat evenly.

[0051] In the above embodiment, different control strategies are adopted for multiple groups of fans under different heat transfer conditions. When heat exchange is required, the second adjustment strategy is use...

Embodiment 3

[0076] Based on the blower system provided in the above-mentioned embodiment 1, in preferred embodiment 3 of the present invention, a unit is also provided, including the above-mentioned blower system.

[0077] In the above embodiment, the fans are divided into multiple groups, and the distance between the fan group and the heat exchanger is adjusted so that the fans in the middle group are slightly farther away from the heat exchanger, so as to solve the problem of low heat exchange efficiency of the existing fan layout and improve The heat transfer efficiency of the fan unit.

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Abstract

The invention discloses a blower system and a control method thereof and a unit. The blower system comprises a plurality of blowers right in front of a heat exchanger, and the blowers comprise the first blower, the second blower and the third blower, wherein the second blower is located between the first blower and the third blower, and the distance of the second blower from the heat exchanger ishigher than the distance of the first blower from the heat exchanger and higher than the distance of the third blower from the heat exchanger. The problem that in the prior art, an existing blower layout is low in heat exchange efficiency is solved, and the heat exchange efficiency of the blower system is improved.

Description

technical field [0001] The invention relates to the technical field of fans, in particular to a fan system, a control method thereof, and a unit. Background technique [0002] The evaporator used in the direct water-cooled air-conditioning unit for the subway is a finned heat exchanger. Due to the large windward area, in order to meet the demand for heat exchange air volume, six fans are arranged in a matrix to improve the wind speed uniformity of the windward section, thereby improving the heat exchange rate. Thermal efficiency, but the currently applied matrix arrangement is relatively fixed and single, and the uniformity of the wind speed in the windward section is not enough. Usually, the wind speed in the cross-affected area of ​​the fans is relatively high. For example, at the middle group of fans, the different wind speeds will directly affect the heat transfer efficiency. , resulting in a limited increase in heat transfer efficiency. [0003] Aiming at the problem o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61D27/00
Inventor 卓明胜周进刘洋陈培生
Owner GREE ELECTRIC APPLIANCES INC