Oxygen candle oxygen supply system in emergency shelter space

Abstract

The invention provides an oxygen candle oxygen supply system suitable for an emergency disaster prevention space. The system comprises an oxygen generating part, an oxygen storage and discharge part and a monitoring and controlling part, wherein the oxygen generating part comprises a reaction vessel and a heat insulation housing; the oxygen storage and discharge part comprises a bearing pressure vessel, an air outlet, a pressure reducing valve, a pressure gauge and an acoustical damper; the monitoring and controlling part comprises an oxygen sensor, a data analysis and control system, an air outlet control valve and a starting device. According to the system, effective utilization of an oxygen candle gas purification agent can be realized; heat dissipation of an oxygen candle can be effectively controlled and delayed, and heat burden in a finite space can be released; the oxygen release of the oxygen candle can be buffered; the uniform release of the oxygen in the space can be ensured; the intelligent and automatic control of the oxygen candle oxygen supply system can be realized, and the problem that hedging people can not operate the system can be solved; the remote start-up and independent control of the oxygen candle can be realized, and oxygen candles can be started and used according to a customized sequence, so as to avoid heat concentration.

Description

technical field [0001] The invention belongs to the technical field of emergency oxygen supply, and in particular relates to an oxygen candle oxygen supply system suitable for emergency shelter spaces. Background technique [0002] The frequent occurrence of mine accidents has seriously affected mine production and social stability, and has attracted extensive attention from all parties. The survival probability of trapped persons in distress can be effectively improved by setting up an emergency escape space underground. In addition to resisting explosions, harmful smoke, and high-temperature environments from the outside, the emergency refuge space should also create an environment suitable for the survival of hazard personnel. Oxygen is an indispensable substance for human survival, and the oxygen supply in the safe-haven space is particularly important. It must be designed as a multi-stage oxygen supply system of compressed air, oxygen cylinders, and chemical oxygen. O...

AI Technical Summary

Problems solved by technology

1. The control of the oxygen supply rate of the oxygen candle has not been realized. Once the oxygen candle is started, all the oxygen will be released, and it cannot be automatically stopped halfway, which will cause insufficient or excess oxygen production, which will have a certain impact on human health, and the oxygen concentration will be too high. Very easy to cause fire hazard

2. Oxygen candles produce large and concentrated heat during use. Although the heat release of a single oxygen candle can meet the use requirements of emergency shelter spaces, more oxygen candles are often needed in the space, and the use of a large number of oxygen candles will still affect the space. bring a large heat load

3. The existing purification method for toxic and harmful gases generated by oxygen candles is to directly add gas purifiers into the oxygen candles. Most of the gas purifiers used are catalytic purifiers, which can be used repeatedly. It is more effective in removing harmful gases, but it will be discarded with the use of oxygen candles, resulting in waste

4. Emergency avoidance personnel often do not understand the operation of oxygen candles, and do not know when to start oxygen candles, and how many to start, which will affect the effective use of oxygen candles in emergencies

5. Although the existing oxygen candles have carried out some research and design on gas purification and temperature control, most of them are for a single oxygen candle. In order to ensure the oxygen supply of the emergency shelter space within the rated rescue time, a large amount of oxygen should be placed. Candles, reasonable placement to avoid heat concentration, unified design to reduce costs and other issues have not been studied

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