1.1 The vehicle positive pressure SQY-TRBA20 long tube air breathing apparatus (hereinafter referred to as the long tube breathing apparatus), installed on the carts used by high-pressure air bottles do gas source. By high-voltage, medium-voltage systems and long-tube air guide device to maintain the continuous long time to work. Provide users with easy to move a positive pressure air long tube long tube breathing apparatus
1.2The long tube breathing apparatus compact structure, easy to carry, use simple operation, users do not have to bear the cylinders brace heavy items to work flexible action, especially for a long time in hypoxia, filled with toxic and hazardous substances or dangerous environment (except fire) and narrow limited channel operations and disaster relief personnel breathing use. For example: Tank, underground pipes, gas or natural gas pipelines, and other places to do the maintenance of a long time, check the use of clean and paint work.
2.Structure and working principle
2.1Structure:
Long tube respirator parts for the car, and distributor of the long tube of the air guide roll, toolbox, gas source, pressure reducer, pressure gauge, in the pressure gauge, pressure alarms, the main air guide long tube (can be up to 80 m), Y-type quick connector, shunt airway of 10 meters each, two supply valve, two full-face mask, belt and 2 to 4 can be connected with the distributor of high-pressure air bottle.
Working principle:
Specific works shown in the figure below:
The products with two -four high-pressure air bottles gas source for the wearer to achieve distance length ≤ 90m positive pressure self-contained breathing. Use slow Cylinder valve, high pressure gas through a one-way (deflated) valve, high pressure pipe, gas source distributor opens into the pressure reducer. Decompression pressure of 0.5 ~ 0.95MPa pressure gas after the main air conductivity long tube, Y-type quick connector and shunt airway arrive quick connector for fast connection with the supply valve. Wearer to achieve positive pressure self-contained breathing through a full face mask and air supply valve.
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