Flow divider, heat exchanger and air conditioner

Abstract

The invention provides a flow divider, a heat exchanger and an air conditioner. The flow divider comprises an air inlet pipe and a flow dividing head, a plurality of flow dividing branch pipes are arranged on the flow dividing head, the air inlet pipe and the flow dividing head are in seal connection and form a flow mixing cavity inside, and a spiral flow mixing device for mixing a flow is arranged in the interior of each flow mixing cavity. According to the flow divider, the spiral flow mixing devices are arranged in the interiors of the flow mixing cavities; gas and liquid two-phase mixed fluid can generate strong rotational flowing when flowing through the spiral flow mixing device, so that gas and liquid two-phase mixing is more uniform; furthermore, under the action of a centrifugal force, the influence of gravity to a gas-phase fluid and a liquid-phase fluid can be effectively weakened, and flow division uniformity and stability of the flow divider are improved.

Description

technical field [0001] The invention relates to the field of air conditioning, in particular to a flow divider, a heat exchanger and an air conditioner. Background technique [0002] The flow state of the gas-liquid two-phase fluid in the splitter has an important influence on the uniformity of liquid separation. After the refrigerant passes through the throttling device, the refrigerant in the tube is a gas-liquid mixture, and the flow is more complicated than single-phase gas or single-phase liquid; at the same time, under the influence of gravity, dryness, speed and other conditions, the gas-liquid two-phase presents different flow states , the distribution performance of the existing flow splitter technology for gas-liquid two-phase flow is poor, and the main problems are as follows: [0003] 1) The distribution uniformity of the gas-liquid two-phase refrigerant is poor, especially when the frequency conversion air conditioner, fixed frequency and variable working condi...

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Problems solved by technology

[0003] 1) The distribution uniformity of the gas-liquid two-phase refrigerant is poor, especially when the frequency conversion air conditioner, fixed frequency and variable working conditions, and partial load conditions cause large differences in the heat transfer efficiency of each pipeline of the evaporator, and the overall heat transfer efficiency Low;

[0004] 2) The distribution stability of the gas-liquid two-phase refrigerant is poor, especially when the frequency conversion air conditioner, the fixed frequen

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