Marine nitrogen preparation device integrating multiple functions and having safety redundancy and control method thereof
A safety redundancy and preparation device technology, applied in the direction of chemical instruments and methods, nitrogen compounds, nitrogen purification/separation, etc., can solve the problems of many coupling factors, large loss of equipment components, and large mutual influence of parameters, etc., to achieve nitrogen production process Smooth, stable pipe network pressure, simple operation
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[0098]Example 1
[0099]This embodiment provides a marine nitrogen preparation device having a safe redundant, including a variety of functions, including an air compressor (A1), a compressed air storage tank (A2), a cold machine (A3), Filter (A4), membrane inlet flow transmitter (C1), membrane inlet pressure transmitter (C2), membrane inlet temperature transmitter (C3), membrane inlet electromagnetic valve (B1), membrane empty device (A5 ), Oxygen analyzer (C4), dew point thermometer (C5), membrane outlet pressure transmitter (C6), membrane outlet flow transmitter (C7), regulating valve (B3), membrane outlet three-way valve (B2) , Nitrogen storage tank (A6);
[0100]A nitrogen storage tank pressure transmitter (C8) and a nitrogen storage pressure switch (D3) are provided on a nitrogen storage tank (A6);
[0101]A air compressor state switch (D1) is provided on the air compressor (A1), and a cold dryer state switch (D2) is provided on the cold dryer (A3);
[0102]An exhaust gas discharge condui...
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