Multi-channel oil returning floater gas-liquid separator

Abstract

The invention discloses a multi-channel oil returning floater gas-liquid separator. The multi-channel oil returning floater gas-liquid separator comprises a separator body shell, and an end cover arranged at the top of the body shell; and a gas-liquid separation system connected with an evaporator of an air conditioning unit and a multi-channel oil returning system connected with an intake port ofa compressor are arranged in the separator body shell. The multi-channel oil returning floater gas-liquid separator has the following characteristics: (1) multiple oil returning pipes with differentheight positions are used for returning oil according to the load change of an air conditioner and different working conditions, so that the defect of incapability of adjusting the oil returning according to the oil level change in the load change of the air conditioner due to fixed position of an oil returning hole of a traditional gas-liquid separator is solved, and the oil returning effect is effectively guaranteed; (2) a gas-liquid separation cylinder is arranged in an inlet of the gas-liquid separator for improving the gas-liquid separation effect; and (3) the oil returning pipes achievea throttling effect, so that liquid-state refrigerants in the returned oil are gasified, and the liquid shock risk of the compressor is reduced; and meanwhile, returned gas can be cooled to reduce harmful overheat and energy consumption.

Description

technical field [0001] The invention relates to a gas-liquid separator for an air-conditioning unit, in particular to a multi-channel oil return float type gas-liquid separator for an air-source heat pump air-conditioning unit. technical background [0002] With the improvement of people's material living standards, the requirements for the comfort of the living environment are getting higher and higher, and air conditioners have become an indispensable living facility in life. At the same time, the problem of unreasonable energy utilization in our country is very prominent. A large amount of coal for heating in winter is one of the main reasons for serious air pollution in winter. According to the policy instruction of "Winter Clean Heating Plan in Northern Region (2017-2021)" jointly issued by ten ministries and commissions of the country, the "coal to clean energy" project in all parts of the north will be completed by the end of 2021. [0003] Driven by government polic...

AI Technical Summary

Problems solved by technology

When the external mixed refrigerant enters the tank through the intake liquid pipe, it will flow along the side wall of the tank to form a swirl flow. At this time, the gaseous refrigerant in the mixed refrigerant flows to the top of the tank, and the liquid refrigerant flows in the Under the action of its own gravity, it accumulates to the bottom of the tank, so that the gaseous refrigerant and liquid refrigerant entering the tank can be separated well, but the separation effect is not very ideal, especially when the heat pump air conditioner defrosts, there may be refrigerant liquid The phenomenon of dripping into the compressor

At the same time, the oil return hole of the traditional gas-liquid separator is located at the bottom of the gas-liquid separator. Due to changes in working conditions, a large amount of liquid refrigerant and lubricating oil may remain in the gas-liquid separator, causing the liquid level of the oil layer to rise, and the lubricating oil Unable to return to the compressor through the oil return hole, resulting in the lack of oil in the compressor

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