A digital breathing following oxygen supply system and its oxygen supply method
An oxygen supply system, digital technology, applied in the direction of breathing masks, respiratory protection containers, respiratory protection devices, etc., can solve the problems of large oxygen flow resistance, low effective utilization rate, waste, etc., to solve oxygen waste and eliminate oxygen source Effects of pollution and elimination of waste
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Embodiment 1
[0032] like Figure 1-5 As shown, a digital breathing-following oxygen supply system includes: an oxygen source 4, an oxygen supply control device and an oxygen mask 2 connected in sequence, and the oxygen supply control device includes a height installed inside the oxygen supply control device Sensor, respiratory rhythm sensor, microcontroller, D / A converter and proportional valve 1, the input end of the microcontroller is respectively connected to the height sensor and the respiratory rhythm sensor, and the output end of the microcontroller is connected to the The D / A converter and the proportional valve 1 are connected to the oxygen source 4 and the oxygen mask 2 through the oxygen supply pipeline.
[0033] In this embodiment, the oxygen supply control device further includes a four-pole double-throw emergency switch 7 , an error-proof plug socket 8 , and a power switch 6 , which are arranged on the oxygen supply control device panel and are respectively connected to the mi...
Embodiment 2
[0045] combined with Figure 1-4 As shown, an oxygen supply method of a digital breathing following oxygen supply system includes the following steps:
[0046] 1.1 Detect the human lung breathing depth P;
[0047] 1.2 Detection of human lung respiratory cycle T;
[0048] 1.3 Calculate the pulmonary ventilation volume Flow∑ and the required oxygen flow Flow (O2) according to the breathing depth P and the breathing cycle T through the mathematical model preset in the microprocessor;
[0049] 1.4 The microcontroller converts the obtained lung ventilation Flow∑ and the required oxygen flow Flow (O2) into electrical signals and sends them to the D / A converter;
[0050] 1.5 Use the D / A converter to control the opening degree of the proportional valve 1 according to the strength of the electrical signal.
[0051] In this embodiment, the breathing depth P in the step 1.1 is obtained by detecting the breathing rhythm sensor installed in the oxygen supply control device, the breathin...
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