Control System of Disposable Air Filtration Ventilator
An air filtration and control system technology, applied in the direction of breathing masks, respiratory protection containers, respiratory protection devices, etc., can solve problems such as difficulty in breathing, lack of fresh air, user discomfort, etc., to achieve less discomfort, low cost, and easy to use Effect
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Embodiment 1
[0031] Control systems for disposable air-filtering respirators, such as figure 1 Shown: Including power supply module, wind guide module, speed measurement module, air pressure sensor module, control module, detection module, alarm module and full-load acceleration module. The air guide module can use 4056 fans or other suitable fans. The power module uses multiple dry batteries , 32 dry batteries can be used, and every eight dry batteries are connected in series to form a group of 12V, and 4 groups are connected in parallel to drive the fan. The air guide module can be equipped with three leads, such as power wires, ground wires and FG speed output wires. The speed, FG speed output line signal is connected to the speed measurement module, and the speed measurement module can measure the speed of the air guide module from the FG speed output line. The wind module, speed measurement module, control module, detection module, alarm module and full-load acceleration module are pa...
Embodiment 2
[0044] The difference from Embodiment 1 is that the alarm module includes a plurality of LED indicator lights with different colors, and different abnormal situations are alarmed by the LED indicator lights, and the LED indicator lights of different colors are convenient for distinguishing different abnormal situations and alarming.
Embodiment 3
[0046] The difference with Embodiment 1 is that when the control module obtains the air pressure value, the time node obtained is added, such as adding the time node T1 at this moment to the air pressure value at T1, and the air pressure value obtained by the timing long-term period after the control module obtains the speed-up signal Subtract to obtain the air pressure difference, for example, add the time node T1+5 to the air pressure value five minutes after T1 after a long period of time, and the control module will make the difference between the air pressure values of T1 and T1+5 to obtain the air pressure difference, and control After the module acquires the speed-up signal, the air pressure difference is judged. The control module compares the air pressure difference with the difference threshold. 4CFM increased to 6CFM.
[0047] Due to the different degree of tightness of the breathing mask, the required minimum ventilation volume is different in the design standard...
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