Chemical oxygen self-rescuer with diversion enhancement heat-transfer and cooling performances

Abstract

The invention provides a chemical oxygen self-rescuer with diversion enhancement heat-transfer and cooling performances. The chemical oxygen self-rescuer comprises a breathing hose, an air bag, an oxygen generator, an upper shell and a lower shell and is characterized in that the oxygen generator is arranged in the lower shell, and a phase-change cooling-material cooling layer is arranged between the outer wall of the oxygen generator and the lower shell; a porous exhaling catheter is arranged on a vertical center shaft of the oxygen generator, and an upper-layer filtering baffle plate and a lower-layer filtering baffle plate are respectively arranged on the planes on which the upper catheter mouth and the lower catheter mouth of the porous exhaling catheter; the porous exhaling catheter is connected with the outer wall of the oxygen generator through a vertical support shunt heat-conducting plate. The oxygen generator with a diversion enhancement heat-transfer technology and the phase-change material melting decalescence cooling layer are adopted. The chemical oxygen self-rescuer has the advantages that the suction temperature and the temperature of the handheld surface of a product are low, the oxygen generating efficiency is high, and meanwhile the air tightness is conveniently inspected.

Description

technical field [0001] The present invention relates to a self-rescue device used for self-rescue and escape in coal mine underground, fire, chemical industry, tunnel and high-rise buildings and other disaster environments with poisonous, harmful gas and lack of oxygen, and especially relates to a chemical oxygen self-rescue with the performance of diversion, enhanced heat transfer and cooling device. Background technique [0002] The isolated chemical oxygen self-rescuer is a personal respiratory protection device made of the principle of oxygen generation by chemical agents. It is widely used by personnel in coal mines where gas explosions, fires, chemical pollution, tunnels, etc. produce toxic and harmful gases and lack of oxygen. self-rescue escape equipment. Existing chemical oxygen self-rescuers at home and abroad generally suffer from excessively high reaction exothermic temperatures, resulting in high inhalation temperatures (usually between 60°C and 65°C) and poor ...

AI Technical Summary

Problems solved by technology

Existing chemical oxygen self-rescuers at home and abroad generally suffer from excessively high reaction exothermic temperature, resulting in high inhalation temperature (usually at 60°C-65°C) and poor comfort for users, and at the same time causing excessively high temperature on the outer surface of the self-rescuer (usually at 80°C) ℃) prone to burns and low efficiency of oxygen production

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