Heat utilization balance processor

Abstract

A heat utilization balance processor relates to a heat exchanger unit for a heat pump hot water machine or a refrigerating cycle system, and in particular relates to a heat utilization balance processor which is suitable for R407C environment-friendly refrigerant. A heat exchange tube is coiled into a spiral shape and arranged in a main heat exchanging cavity; a vapor separation barrel of a vapor-liquid separator is arranged at the lower half part in a shell; an auxiliary heat exchanging cavity is formed between the lower half part of the shell and the outer periphery of the vapor separation barrel; the upper part of the main heat exchanging cavity is communicated to a working medium inlet outside the shell; the main heat exchanging cavity is communicated with the auxiliary heat exchanging cavity through a working medium passage hole; the bottom of the auxiliary heat exchanging cavity is communicated to a working medium outlet outside the shell; and a heat medium water passage is arranged inside the heat exchanging pipe. Through heat utilization balance exchange on the working medium in the process of condensation and evaporation in the auxiliary heat exchanging cavity, the problem of unbalanced phase change process caused by phase change non-isothermal characteristic of non-azeotropic mixing working medium R407C is solved, and the influence of the temperature slippage of the mixed refrigerant on the operation performance and safety of the equipment is eliminated.

Description

technical field [0001] The invention relates to a heat exchanger component used in a heat pump water heater or a refrigeration cycle system, in particular to a heat utilization balance processor suitable for a heat pump system of R407C environment-friendly refrigerant. Background technique [0002] In the "Terrier Protocol", R22, as the HCFC working fluid, is the second batch of substances to be replaced. In 1992, the fourth meeting of the parties to the "Protocol" held in Copenhagen, Denmark decided to advance the ban period of R22 to 2020, so the use of environmentally friendly refrigerants in refrigeration systems is getting closer and closer. As an important substitute for R22 refrigerant, R407C refrigerant is a mixed working fluid, which is a zeotropic mixture of R125, R32 and R134a (25 / 23 / 52% by weight), and the temperature glide is about 7K. The temperature glide refers to the change value of the phase change temperature when the refrigerant mixture undergoes a phase...

AI Technical Summary

Problems solved by technology

Although the above-mentioned utility model patents and invention patent applications have proposed different technical solutions to solve the temperature glide problem caused by mixed refrigerants, the existing technical solutions are all adapted to mixed refrigeration by controlling the temperature difference of the heat exchanger itself. The temperature glide of the agent cannot fundamentally solve the problem of imbalance in the phase change process caused by the non-isothermal characteristics of the phase change of the non-azeotropic refrigerant R407C

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