The role of liquid separator in air conditioner refrigeration system

The liquid division device comprises a liquid division tank and a heavy liquid discharge pipe arranged in parallel on the outside of the liquid division tank. The liquid division tank and the heavy liquid discharge pipe are communicated through a bending pipe at the bottom; The top of the side wall of the liquid division tank is provided with a mixed liquid feed port, and the side wall of the liquid division tank is provided with a light liquid overflow port relative to and lower than the mixed liquid feed port, and the top of the liquid division tank is provided with a total drain pipe; The height of the heavy liquid discharge pipe is lower than the height between the light liquid overflow port and the bottom of the liquid division tank.

In the air conditioner refrigeration system, the liquid separation device assumes the important role of fully mixing the gas-liquid two-phase refrigerant and evenly distributing it to each coil. The gas-liquid two-phase flow refrigerant flowing out of the expansion valve is usually a bubble flow or a group flow, which causes difficulties for the flow sharing effect of the separator. During the development of air conditioning unit, the traditional front end of the separator is often used U-shaped connection pipe, and the refrigerant two-phase flow will inevitably produce segregation phenomenon at the bend pipe, so it is required to determine the installation Angle of the separator and the capillary length of the batch by means of experiment. However, in the actual production of air conditioning, workers inevitably due to non-standard installation or operation errors resulting in the installation Angle of the separator is incorrect, resulting in the failure of the separator, resulting in different liquid supply, affecting the heat transfer performance of the evaporator, and then affecting the performance of the whole refrigeration system.

The liquid separation device is provided with a heavy liquid overflow port on the side wall of the top of the heavy liquid discharge pipe; The liquid separator is provided with a liquid separator baffle; A pressure balancing pipe is arranged between the heavy liquid discharge pipe and the side wall of the liquid dividing tank. When the mixed liquid enters the separator, after being blocked by the separator baffle in the separator, the stratified liquid on the other side of the separator baffle will not be stirred, which ensures the stability of the liquid in the separation process and further improves the separation effect.