Exhaust-free two-way enhanced filtering method and system for house

Abstract

The invention discloses an exhaust-free two-way enhanced filtering method for a house. The exhaust-free two-way enhanced filtering method is characterized in that a two-way enhanced filtering system combining outdoor fresh air filtration and indoor return air filtration is adopted, the indoor micro-positive pressure is maintained by utilizing an exhaust-free internal circulation filtration technology, and therefore outdoor haze can be prevented from being infiltrated, and the rapid response to the heavy haze can be further realized. The invention discloses an exhaust-free double enhanced filtering system for the house, and the exhaust-free double enhanced filtering system for the house comprises an outdoor fresh air inlet pipe (1), an outdoor fresh air filter (2), an air-air heat exchanger(3), an indoor return air filter (4), an indoor return air inlet pipe (5), an indoor return air supply pipe (6), an indoor return air fan (7), a PM2.5 concentration sensor (8), an indoor return air fan controller (9), an outdoor fresh air fan (10), an outdoor fresh air supply pipe (11) and a composite installation box (12). According to the exhaust-free two-way enhanced filtering method and system for the house, the rapid response to the heavy haze can be realized, and the excellent indoor air quality can be effectively guaranteed.

Description

technical field [0001] The invention belongs to the technical field of ventilation, and relates to a fresh air filter system, in particular to a non-exhaust type two-way enhanced filter system for residential buildings facing heavy smog. Background technique [0002] In recent years, smog has persisted in various parts of the country, especially in the northern region, and the outdoor air quality has seriously deteriorated. In order to ensure the air quality of fresh air introduced from outside and reduce the impact of outdoor haze on indoor particle concentration, fresh air filtration plays a vital role. In heavy smog weather, the outdoor PM2.5 concentration is as high as hundreds to thousands, far exceeding the indoor specified value (75ug / m 3 ), the "fresh air load" is very high. In heavy smog weather, in order to reduce the "fresh air load" borne by the fresh air filter system, most of the existing fresh air fans reduce or close the fresh air valve, and the indoor part...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a residential non-exhaust type two-way enhanced filtration method and system that can be used to resist heavy smog, so as to solve the serious shortage of fresh air and the outdoor smog caused by local exhaust in the existing fresh air filter system The problem of infiltration, to achieve the technical guarantee of excellent air quality in the residence, to overcome the above-mentioned defects of the traditional fresh air filter device

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