Leak detection method

A leak detection method, comprising the steps of:

• determining, in a mode determination step (S100), an operating mode of a cooling system (10) on the basis of information received from the cooling system (10);
• determining, in a reference level determination step (S200), a reference level in a cooling water storage tank (11) in the operating mode determined in the mode determination step (S100);
• wherein the reference level determination step (S200) comprises the steps of:
• maintaining a level stabilization mode for a set period of time (S230);
• collecting cooling water level information of the cooling water storage tank (11) for a set period of time when the level stabilization mode ends;
• and
• determining an average value of cooling water levels collected for the set period of time as the reference level,
• determining, in a leak determination step (S300), whether a leak has occurred by comparing the reference level determined in the reference level determination step (S200) and a cooling water level in the cooling water storage tank (11) measured in real time;
• and
• wherein the leak determination step (S300) comprises the step of:
• calculating, in a difference value calculation step (S310), a difference value between the cooling water level in the cooling water storage tank (11) measured in real time and the reference level determined in the reference level determination step (S200),
• wherein the difference value calculation step (S310) comprises the steps of:
• measuring, in a cooling water level measurement step (S311), the cooling water level in the cooling water storage tank (11) in real time;
• measuring, in a cooling water temperature measurement step (S312), a temperature of cooling water in the cooling system (10) in real time;
• and
• correcting, in a corrected level calculation step (S313), the level measured in the cooling water level measurement step (S311) on the basis of the temperature measured in the cooling water temperature measurement step (S312) to calculate a corrected cooling water level,
• wherein in the corrected level calculation step (S313), the corrected cooling water level is calculated according to Equation 1:
• h
• ⁢
• 1
• =
• h
• ⁢
• 0
• -
• C
• ×
• (
• t
• ⁢
• 1
• -
• t
• ⁢
• 0
• )
• (h0:
• the reference level, h1:
• the level to which correction based on a cooling water temperature change is applied, t0:
• a reference temperature (the temperature when the reference level is measured), t1:
• a current temperature, C:
• a correction coefficient),
• providing, in a notification step (S400), leak information to a set terminal when it is determined that the leak has occurred in the leak determination step (S300),
• wherein the leak detection method uses a leak detection device (1000), and
• the leak detection device (1000) comprises:
• a level measurement device (100) coupled to the cooling water storage tank (11) in which cooling water is stored, and configured to measure the cooling water level in the cooling water storage tank (11);
• and
• a cooling water flow limiting device (400) positioned facing a cooling water inlet, inside the cooling water storage tank (11).