Positive pressure type firefighting oxygen respirator

Abstract

The invention provides a positive pressure type firefighting oxygen respirator. A shell of the positive pressure type firefighting oxygen respirator is a cavity formed by buckled connection of an upper cover and a lower cover, a fixed oxygen bottle is arranged at the bottom of the respirator, a bottle switch is arranged on a bottle opening of the oxygen bottle, and is connected with a pressure reducer through a nut, the pressure reducer is connected with an alarm device, an oxygen meter, a positive pressure spring, an automatic oxygen supply valve and a manual oxygen supply valve through an oxygen pipe, the automatic oxygen supply valve is connected with an oxygen bag through an oxygen pipe, a quantitative supply valve achieves quantitative oxygen supply through quantitative holes, needs of a user are met, the quantitative supply valve and the manual oxygen supply valve are connected with a cooling unit through a pipeline and a three-way valve, the oxygen bag is connected with a clean tank, the cooling unit and a water draining valve through an oxygen pipe, the clean tank and a cooling tank are connected with a comprehensive cover through a respiring pipeline. The positive pressure type firefighting oxygen respirator is firm, resistant to high temperature, free of peculiar smell, comfortable in wear, convenient to maintain, smooth in respiring and high in view rate and safety, and the quality and the effect of the novel positive pressure type firefighting oxygen respirator are greatly improved.

Description

technical field [0001] The invention belongs to the field of fire-fighting and life-saving, and is suitable for wearing and using in fire-fighting, coal mines, chemical industry, tunnels and high-rise buildings in poisonous, harmful gas, anoxic disaster environments, rescue and rescue, search and detection work, and relates to a positive-pressure fire-fighting oxygen breathing device. The utility model relates to an emergency life-saving breathing device for positive-pressure oxygen, CO2 purification and phase-change refrigeration applications. Background technique [0002] Positive pressure fire-fighting oxygen respirator is a closed-circuit respiration system, which absorbs CO2 in the exhaled gas, cools down the processed gas and mixes it with corresponding proportion of oxygen, and then returns it to the human body for inhalation, thus Form a cycle of breathing that is completely isolated from the outside world, allowing the breathing gas to be recycled. [0003] Positiv...

AI Technical Summary

Problems solved by technology

However, the positive pressure fire-fighting oxygen respirator of the prior art has a fragile shell, poor temperature resistance, peculiar smell in the airbag, inconvenient wearing and maintenance, high breathing resistance, easy atomization of the mask, and the need to repeatedly refill ice and CO2 absorbents. Single or multiple shortcomings such as complicated filling, powdery and choking

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