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EP0616175A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Environment decontaminating system having air cleaning and deodorizing function

Assignee: Yushin Engineering Corp
•
Filing: 1994-03-15
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Granted: —
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Expires: 2014-03-15
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Abstract

Abstract The invention refers to an environment decontaminating system having air cleaning and deodorizing functions. It is object of the invention to provide such a system to reproduce cleaned air which should be provided by the nature covered with rich green by artificially utilizing dust collection, air sterilization, forest bathing effect, deodorizing and acid gas adsorption with safety as well as stability and thereby to maintain a desired indoor air quality. This object is achieved by a system having a DC high voltage dust collector, a dust catching filter, an ozone generator, an odor/ozone turbulent mixing plate, a deodorizing catalyst, an acid gas absorbent, a suction scavenging fan and an ozone concentration sensor arranged in this order, wherein said ozone concentration sensor is placed at an outlet of cleaned air.

Inventors

  • 👤 Tsutomu Hiromi

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 14:20
CPC Classifications
F; F24; F24F; F24F8/00; F24F8/20; F24F8/24; F24F8/26; F24F8/30; F24F8/40; F24F8/80; F24F8/10; F24F8/15; F24F8/167; Y; Y02; Y02A; Y02A50/00; Y02A50/20

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 64 words
Environment decontaminating system having air cleaning and deodorizing functions comprising a combination of a DC high voltage dust collector, a dust catching filter, an ozone generator, an odor/ozone turbulent mixing plate, a deodorizing catalyst, an acid gas absorbent, a suction scavenging fan and an ozone concentration sensor arranged in this order, wherein said ozone concentration sensor is placed at an outlet of cleaned air.
Claim 2
Dependent Claim 76 words
Environment decontaminating system having air cleaning and deodorizing function according to Claim 1, wherein the system is constructed so as to be readily responsive to a variation in dust collection load for cigarette smoke or the like under high voltage DC Coulomb effect of a predermined boosted viktage and, once decontaminated, the number of negative ions in an indoor environment is stabilized to the number of negative ions usually observed in suburbs covered with rich green.
Claim 3
Dependent Claim 80 words
Environment decontaminating system having air cleaning and deodorizing functions according to Claim 1, wherein the ozone concentration sensor is placed immediately behind the outlet of the system and controls output of ozone generation in order that an ozone exhaust concentration be maintained at a level lower than 0.06 ppm which is predetermined as a safety standard for the system exhaust even if the ozone generator , the ozone deodorizing catalyst and the acid gas absorbent are subject to secular change.
Claim 4
Dependent Claim 47 words
Environment decontaminating system having air cleaning and deodorizing functions according to Claim 1, wherein a useful life of the catalyst is prolonged by slowing down generation of ozone at a temperature range in which biological odors are not significantly activated in a living space of human being.
Claim 5
Dependent Claim 46 words
Environment decontaminating system having air cleaning and deodorizing function according to Claim 1, wherein an erroneous operation of the ozone concentration sensor due to mescellaneous gases is avoided by arranging the dust collector, the chemical deodorant and the acid gas absorbent as ozone sensor protecting filters.

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