What is the function of the several pipelines on the pump body?
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I knew that in the nuclear island, there’s a pipe for the cooling pump used to fill the water jacket; but what are the functions of the other pipes generally?
It depends on the situation; it mainly relates to the machine seal water, the bearing cooling circulation water, the minimum flow rate requirements, as well as the inlet and outlet pipelines… Basically, that’s what’s important
Is seal water used to cool the mechanical seal? What do import and export pipelines, as well as minimum flow pipelines, mean?
It would be great if you had photos. What’s mentioned on the 2nd floor covers all the situations; every possible case has been discussed.
Water line: to cool the pump body. Steam line: for purging. Low-pressure gas line: for venting
I’m not sure if what I’m saying is the answer to your question. The seal water is mainly used to dissipate the heat generated by the friction between the stationary and rotating rings in the mechanical seal; as for the other aspects, you can find information on them by looking into chemical process design