Five-chamber double-layer parallel flow evaporator and heat exchanging method thereof

Abstract

The invention discloses a five-chamber double-layer parallel flow evaporator and a heat exchanging method of the five-chamber double-layer parallel flow evaporator. The five-chamber double-layer parallel flow evaporator comprises a front row heat exchanging module, a rear row heat exchanging module, fins, a left side plate and a right side plate. The front row heat exchanging module and the rear row heat exchanging module are arranged in parallel and in a front and back mode. A freezing medium enters the rear row heat exchanging module from the front row heat exchanging module through overflowing holes in a collecting pipe on the front row heat exchanging module and overflowing holes in a collecting pipe on the rear row heat exchanging module. According to the five-chamber double-layer parallel flow evaporator, the evaporator is divided into five heat exchanging chambers and the five heat exchanging chambers are connected from front to back through three collecting pipe separating plates, wherein a fifth heat exchanging chamber is a heat exchange capability buffer zone of the whole evaporator. The flow direction of the freezing medium in each rear row heat exchanging flat pipe is automatically regulated according to change of a work environment of the evaporator. The five-chamber double-layer parallel flow evaporator is simple in structure and convenient to machine, is provided with the environmental adaptation buffer zone and improves heat exchange efficiency of a heat exchanger and adaptive capacity of application environment.

Description

technical field [0001] The invention relates to an evaporator, in particular to a five-chamber double-layer parallel flow evaporator and a heat exchange method thereof. Background technique [0002] As a conventional double-layer parallel-flow evaporator for automobile air conditioners, there is known a four-chamber double-layer parallel-flow evaporator whose inner cavity is separated by three collector tube partitions. The patent announcement number is CN101498565B, and the application announcement number is CN101975493A. , The application publication number is CN102914095A. These types of double-layer parallel flow evaporators all have a four-chamber structure, and the partitions in each header are often set at the same position, and the size of each chamber is generally the same, without considering the decline in cooling effect and increase in volume during the refrigerant evaporation process. Factors, but also did not consider the change of heat transfer effect of diff...

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Problems solved by technology

[0004] There is also a known double-layer parallel flow evaporator that uses a full partition and a hook-shaped half partition to separate the inner cavity of the evaporator, and also considers the problem of accelerating the movement of the gas-phase refrigerant to the outlet pipe, but there is still no buffer zone, and the The structure of the device is complex and difficult to process

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