A flushing structure of a heat exchanger

Abstract

The invention discloses a flushing structure 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 flushing structure is arranged between a hot air inlet of the heat exchanger and the hot air way. The flushing structure comprises a spraying layer and a sealing cover. The spraying layer and the sealing cover form a cavity. A plurality of spraying holes are formed in the spraying layer. A water inlet is formed in the sealing cover. The flushing structure can flush impurities such as line scraps attached to the air ways inside the heat exchanger or the hot air inlet in the heat exchanger, the hot air inlet or the air ways are prevented from being blocked by impurities such as line scraps, and it is ensured that the air ways are smooth.

Description

technical field [0001] The invention relates to the field of clothes drying, in particular to a flushing 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 number. It is assembled with the frame. At the same time, it will produce There are a lot of lint, if it is blocked by lint, it is not easy to clean. In order to ensure the durable quality of the product, it is necessary to add a filter structure, which filters the lint from the air duct of the dryer into the heat exchanger and is filtered by the filter structure to protect the heat. The exchanger is not blocked, ensuring the quality and life of the components

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