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Measuring device for micro flow rate and nuclear power plant having the same

  • US 10,453,577 B2
  • Filed: 09/15/2015
  • Issued: 10/22/2019
  • Est. Priority Date: 02/10/2015
  • Status: Active Grant
First Claim
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1. A device for measuring a micro flow rate, the device comprising:

  • a container having an internal space for containing a fluid flowing therein and an inflow line and an outflow line formed in communication with the internal space;

    a fluid level gauge configured to sense whether a level of a fluid collected in the container rises to a predetermined height, and to conduct or block flow of an electric current depending on whether the level of the fluid rises to the predetermined height;

    a control valve disposed in a part of the outflow line extending from the lower portion of the container and configured to open or close the outflow line according to a state in which the control valve is electrically connected to or disconnected from the fluid level gauge such that the outflow line is opened or closed according to a change in the fluid level and configured to allow or block the discharge of the fluid through the outflow line by operation of opening or closing the outflow line; and

    a control unit configured to calculate a micro flow rate of the fluid collected in the container using information acquired from at least one of the fluid level gauge and the control valve.

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