Oxygen reduction system and method for configuring an oxygen reduction system

A technology of oxygen and oxygen concentration, which is applied in fire rescue and other fields, can solve problems such as air tightness, and achieve the effects of reducing installation costs, small size, and minimizing wear and tear

CN107847777BActive Publication Date: 2020-05-22AMRONA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-05-22

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Abstract

The present invention relates to a method for reducing the oxygen content in the atmosphere of an enclosed space and / or for maintaining the reduced oxygen content in the atmosphere of an enclosed space below a predetermined operating concentration which is reduced compared to the oxygen concentration of normal ambient air. system. The system includes a gas separation system, the outlet of which is fluidly connected to an enclosed region for a continuous supply of an oxygen-reduced gas mixture or an oxygen-replacing gas. The gas separation system is configured such that during continuous operation of the gas separation system, the oxygen concentration in the atmosphere of the enclosed area is always kept within a range between a predetermined working concentration and a predetermined or definable lower limit concentration.
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Description

technical field

[0001] The present invention relates to a method for reducing the oxygen content of an enclosed space atmosphere or for independently maintaining a reduced oxygen content in an enclosed space atmosphere below a predetermined and reduced concentration compared to the normal ambient air oxygen concentration (working concentration) system.

[0002] In particular, the system of the present invention is configured to prevent the development or spread of a fire by introducing an oxygen-reduced gas mixture or an oxygen-replacing gas into the space atmosphere of an enclosed area. Furthermore, the system according to the invention is also suitable in principle for extinguishing fires in enclosed areas.

[0003] The system according to the invention is thus used, for example, for risk minimization and fire extinguishing in monitored areas, whereby closed areas can also or can be continuously inerted with different reduction levels in order to prevent or control fires. ...

Examples

Embodiment Construction

[0040] figure 1 A basic timing diagram representing the mode of operation of a conventional oxygen reduction system known in the art is shown. This is an oxygen reduction system for reducing the oxygen concentration in the space atmosphere of an enclosed area below a predetermined and reduced concentration (=working concentration) compared to the oxygen concentration of normal ambient air. figure 1 The relevant time periods of the time graph total one week (7 days).

[0041] figure 1 In particular, the chronological development of the oxygen concentration in the space atmosphere of an enclosed area is depicted. It can be seen that the oxygen concentration is always in the range between about 15.0% by volume and 14.9% by volume. This is a typical control range defined by the upper and lower thresholds of the oxygen concentration in the atmosphere of the enclosed area space.

[0042] The upper threshold of the concentration of oxygen in the atmosphere of the enclosed area re...