An outdoor unit of an air source cooling and heating unit

Abstract

The invention discloses an outdoor unit of an air source cooling and heating integrated unit. One end of the heat exchange tube is connected to a gas pipe, and the other end of the heat exchange tube is connected to a variable steering channel connector. The variable steering channel connector includes an outer Tube, axially inserted in the outer tube and a hollow rotating body that can rotate relative to the outer tube, the top of the rotating body is connected to the rotary knob, one side of the tube wall of the outer tube is connected to the heat exchange tube, and the opposite side is connected to the liquid separator Capillary, there is a connecting pipe in the radial direction of the rotating body, and there is a liquid discharge port on the wall of the rotating body; when the rotating body turns to one position, the connecting pipe can communicate the heat exchange tube with the liquid separation capillary, when the rotating body turns to another position , the tube opening of the heat exchange tube is connected to the liquid discharge port, the bottom end of the outer tube is connected and communicated with one end of the liquid tube, and there is a stop valve on the liquid tube. The invention utilizes the variable diverting channel connection piece to realize the quick transition of the outdoor machine working modes of cooling in summer and heating in winter.

Description

technical field [0001] The invention relates to the technical field of refrigeration and air conditioning, in particular to an outdoor unit of an air source cooling and heating integrated unit. Background technique [0002] In the air source cooling and heating integrated unit, the outdoor unit is a finned tube heat exchanger, which is used as the evaporator of the refrigeration system during the winter heating cycle. The low-temperature and low-pressure refrigerant liquid that has been throttled and reduced is absorbed in the heat exchange tube The heat of the external ambient air evaporates into a low-temperature and low-pressure gas; in summer, the refrigeration cycle acts as a condenser, and the high-temperature and high-pressure refrigerant gas discharged from the compressor releases heat to the external ambient air in the heat exchange tube, and condenses into a high-temperature and high-pressure liquid. In the cycle of summer and winter, the direction of the refrigera...

AI Technical Summary

Problems solved by technology

In the cycle of summer and winter, the direction of the refrigerant entering and exiting changes, especially the flow direction conversion of the evaporator with a liquid separator and the condenser. The usual system piping connections are complicated and cannot meet the problem of condensed liquid collection when used as a condenser. Therefore, it is of great significance to develop a circulation system with simple structure and convenient operation and control to save pipeline consumables, reduce costs, reduce pipeline resistance loss, improve circulation efficiency, save energy and protect the environment.

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