DEVICE FOR TESTING BREATHING APPARATUS Russian patent published in 2014 - IPC A63B27/00 

FIELD: rescue equipment.

SUBSTANCE: device for testing the breathing apparatus comprises the gas-air mixture flow agitator of the dosing system of carbon dioxide and water, the measuring units of carbon dioxide and oxygen content, temperature, resistance to breathing and humidity, the carbon dioxide absorption unit. The novelty is production of the gas-air mixture flow agitator in the form of a container connected to the recirculation circuit of the working fluid, in which the sleeve of elastic material is placed, which cavity is connected to the test apparatus. The recirculation circuit of the working fluid comprises a pump and receivers connected to the container through the control valves, between which the differential transducers of pressure and flow are mounted. In front of the valve the temperature sensor and the measuring units of concentration of oxygen and carbon dioxide in the gas-air mixture are mounted. The device provides elimination of discharge of part of the gas-air mixture to the environment and reproduces the dynamics of human breathing, and also provides the ability of stepless regulation of depth of breathing during the breathing apparatus testing.

EFFECT: improved design.

6 cl, 2 dwg