Turning wheel type full heat exchanging system

Abstract

A full heat exchange device of runner type consists of fan for providing two air streams of air exhausted from indoor and air led from outdoor, air inlet channel and air outlet channel, sensible heat exchange and full heat exchanger as both being stridden over on air inlet channel and air outlet channel for providing two said air streams separately. It is featured as having a heat conduction element and a numbers of finned sheets on sensible heat exchanger and exchanging heat of two said air streams by two said heat exchangers.

Description

【Technical field】 [0001] The invention relates to a total heat exchange device, in particular to a wheel type total heat exchange device. 【Background technique】 [0002] In daily life, in order to ensure indoor air quality, it is often necessary to install an air conditioning system, especially in places where people are relatively concentrated, so as to replenish fresh outdoor air into the room in a timely manner, and at the same time discharge indoor dirty air to the outside, dilute indoor dirty air, and provide A comfortable, healthy and fresh air environment meets the requirements of human health standards. [0003] However, direct replacement of indoor and outdoor air will cause a large amount of energy loss. Taking summer as an example, a large amount of outdoor air with high temperature and humidity will be used to replace indoor air-conditioned dry and cold air, which will cause greater energy loss. [0004] In order to solve the above-mentioned problems of indoor a...

AI Technical Summary

Problems solved by technology

Since the total heat exchange device has been in the key position of the internal and external exchange interface and filtering pollutants for a long time, the bad air filtration will easily cause dust and bacteria to accumulate inside the channel, which will not only reduce the operating efficiency, but also cause cross-infection of the internal and external air flow channels. Considering that it will cause the accelerated spread of vector bacteria, it is necessary to strengthen the quality of intake and exhaust air filtration

[0008] (2) Heat exchange efficiency needs to be improved

Since the exchange of sensible heat and latent heat is achieved by passing the two airflows through the runner with a honeycomb structure during the intake and exhaust, the heat exchange efficiency is completely determined by the runner, but the runner is based on a material with strong hygroscopicity and strong permeability. It is often impossible to take into account the improvement of heat transfer effect. Although sensible heat exchange accounts for a relatively low proportion of total heat exchange, there is still a lot of room for improvement in terms of overall heat exchange efficiency.

[0009] (3) The flow into the channel of the total heat exchange runner is not uniform

Since the wind direction blown from the fan and the wind direction entering the channel of the total heat exchange runner are at a vertical angle, and at the end of the flow passage formed by the runner and the casing, there is a casing end plate facing the main air flow, which is directly affected The interaction between the secondary airflow impacting the end plate and the incoming main airflow and the turning effect make the flow field very chaotic, resulting in most of the flow entering the runner only converging in some channels, and the uneven air volume distribution between the above channels has a great impact on the overall The heat exchange efficiency is very unfavorable

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