Refrigerant distributing device and heat exchanger with same

Abstract

The invention provides a refrigerant distributing device and a heat exchanger with the same. The refrigerant distributing device comprises a conduit, a first distributing pipe and a second distributing pipe, wherein the inner cavity of the conduit is divided into an upper cavity and a lower cavity; the first distributing pipe is provided with a gas phase refrigerant inlet and a gas phase refrigerant outlet and limits a first end inserted into the conduit and a second end extending out of the conduit; the gas phase refrigerant inlet is arranged in the upper cavity; the gas phase refrigerant outlet is arranged outside the conduit, with the opening downward; the second distributing pipe is provided with a liquid phase refrigerant inlet and a liquid phase refrigerant outlet and limits a first end inserted into the conduit and a second end extending out of the conduit; the liquid phase refrigerant inlet is arranged in the lower cavity; and the liquid phase refrigerant outlet is arranged outside the conduit, with the opening upward. The refrigerant distributing device has the following advantage: the gas phase and liquid phase refrigerants are mixed uniformly, thus the heat exchange efficiency is high.

Description

technical field [0001] The invention relates to a refrigerant distribution device and a heat exchanger with the refrigerant distribution device. Background technique [0002] In traditional heat exchangers, in order to improve heat exchange performance, a refrigerant distribution device is usually provided in the inlet header of the heat exchanger. For example, Chinese patent application CN101031762A describes a refrigerant distribution device in which a small-diameter conduit is provided in the inlet channel, wherein the inlet end of the small-diameter conduit is inserted into the liquid-phase fluid below the refrigerant gas-liquid interface in the inlet channel Inside, the outlet port is located outside the inlet channel. [0003] When the gas-liquid two-phase fluid flows in the inlet channel, gas-liquid stratification will inevitably occur, with the gas phase on top and the liquid phase on top. For the above conventional refrigerant distribution equipment, the inlet end...

AI Technical Summary

Problems solved by technology

However, the gaseous refrigerant sprayed from the gas nozzle 34 and the liquid refrigerant sprayed from the liquid nozzle 36 are directly opposed, and the mixing effect is not good, because the density of the gaseous refrigerant is much smaller than that of the liquid refrigerant, and the difference in momentum Large, the gaseous refrigerant cannot disperse the liquid refrigerant well, so the mixing effect is not good, and the refrigerant is still prone to stratification in the header of the heat exchanger, which affects the heat exchange efficiency

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