Design of oxygen temperature and pressure compensation and proportional control in its branches
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As the title indicates, there is an oxygen pipeline. The main pipeline is required to have temperature and pressure compensation for flow control as well as the ability to regulate the total flow rate. Two branch pipelines are intended to be created, with the flow rate in each of these branches being 15-20% of the total flow rate. How should the control method be selected? More details~ Thank you
A flow meter is installed on the main pipe; the flow rate is calculated using temperature and pressure compensation, and a control valve is used to regulate the flow rate in the main pipe. An average value of 17.5%, which is 15–20% of the main pipe flow rate, is taken as the flow control target for a single pipe. Is it also necessary to install a flow meter for this section? ……
Flow meters, thermometers, and pressure gauges are installed on the main pipe; the flow rate is calculated using temperature and pressure compensation to enable adjustment of the total flow. Flow meters are also installed on each branch pipe, and once adjusted with manual valves, further adjustments are generally not necessary.
There is a flow meter on the line under management; it is required that the flow on this line also be regulated using a programmable valve so that it accounts for 15%-20% of the total flow. How can this be achieved?
Control valves and flow meters are installed on each branch line, and a single closed-loop proportional control scheme is adopted; this allows the proportional relationship between the main flow rate and the secondary flow rate to be maintained, with the flow rate in the branch lines changing in accordance with the flow rate in the main pipeline.