A uniform wind structure of a heat exchanger

Abstract

The invention discloses air uniformity structures for a heat exchanger. The heat exchanger comprises two sets of intersecting air ways. One set of air ways are connected with a hot air way, and the other set of air ways are connected with a cold air way. The air inlet uniformity structure is arranged at a hot air inlet of the heat exchanger, and / or the air outlet uniformity structure is arranged at a hot air outlet of the heat exchanger. According to the air inlet uniformity structure, a plurality of parallel rib plates are arranged on the inner surface of an air inlet, and the air inlet is partitioned into the multiple air ways through the rib plates. According to the air outlet uniformity structure, a plurality of air outlets are formed in one side of a lower cover plate and communicated with a main air outlet in the shape like a Chinese character 'zhong'. The air uniformity structures can guide airflow to enter the heat exchanger and be exhausted from the heat exchanger uniformly, nonuniformity of hot air is avoided, and the heat exchange efficiency is improved; in addition, the phenomenon that a system is affected by nonuniformity, caused by nonuniformity of airflow, of pressure intensity is avoided.

Description

technical field [0001] The invention relates to the field of clothes drying, in particular to an even air structure of a heat exchanger. Background technique [0002] With the continuous upgrading and optimization of energy efficiency standards in the household appliance industry, more and more users have begun to pay attention to the energy efficiency parameters of products, and energy conservation and environmental protection have become the development direction of the industry. [0003] Therefore, the drying capacity of the washer-dryer with three-in-one washing, washing and drying is also upgraded along with the upgrading of the industry. In the drum type washer dryer, during the drying process, the energy not only evaporates the water in the clothes into steam, but also continues to condense the evaporated steam into water vapor. [0004] At present, there are three forms of condensation methods in the industry. 1. Use cold tap water to condense steam. Advantages: low...

AI Technical Summary

Problems solved by technology

Disadvantages: The machine needs continuous water intake and cooling during operation, and the water consumption is large

Disadvantages: high cost, expensive, not conducive to promotion

Generally limited by the space of the washing machine, two sets of heat dissipation paths can be made at most. The production cost of aluminum alloy materials is high, and the heat dissipation effect is limited by the production process of aluminum alloy sheets. The contact area between steam and condenser is small, which is not conducive to steam condensation.

[0006] In order to increase the heat dissipation area, the plastic sheet heat exchanger is stacked and overlapped by a plurality of vertically and horizontally arranged alternately. Using plastic materials, the molding is simple, the thickness is controllable, and it can be made very thin, which can be increased in an effective space. The number of slices can increase the heat dissipation area and improve the heat exchange efficiency. It can be placed vertically and horizontally and stacked alternately without other connecting parts, and the positioning is simple and accurate. However, thinner slices will lead to lower strength and lower reliability. After a long time of use, it will be deformed and affect the performance of the product. A frame is added outside the heat exchanger. At the same time, the plastic sheet heat exchanger requires a small thickness and a large quantity. It is assembled with the frame, and the cross-sectional area of ​​the dryer air duct Different from the cross-sectional area of ​​the air inlet of the heat exchange structure of the air condenser, it is easy to cause uneven air intake of the condensing structure. If the air intake of the condensing structure is uneven, the condensation effect will be unsatisfactory

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