US 12,288,634 B2
Power supply apparatus detecting gas leak
Jeong In Park, Incheon (KR)
Assigned to KOREA GAS CORPORATION, Daegu (KR)
Appl. No. 18/278,291
Filed by KOREA GAS CORPORATION, Daegu (KR)
PCT Filed Nov. 2, 2020, PCT No. PCT/KR2020/015166
§ 371(c)(1), (2) Date Aug. 22, 2023,
PCT Pub. No. WO2022/092375, PCT Pub. Date May 5, 2022.
Prior Publication US 2024/0117942 A1, Apr. 11, 2024
Int. Cl. H01B 7/32 (2006.01); F17C 13/02 (2006.01); F17C 13/12 (2006.01); G01M 3/28 (2006.01); H02G 3/04 (2006.01); H02G 3/30 (2006.01); H02G 3/38 (2006.01); H02G 15/18 (2006.01); H02G 15/28 (2006.01)
CPC H01B 7/32 (2013.01) [F17C 13/025 (2013.01); F17C 13/123 (2013.01); G01M 3/2815 (2013.01); H02G 3/0462 (2013.01); H02G 3/24 (2013.01); H02G 3/383 (2013.01); H02G 15/18 (2013.01); H02G 15/28 (2013.01); F17C 2205/0323 (2013.01); F17C 2205/0352 (2013.01); F17C 2221/012 (2013.01); F17C 2221/033 (2013.01); F17C 2221/035 (2013.01); F17C 2227/0135 (2013.01); F17C 2250/043 (2013.01); F17C 2250/0636 (2013.01); F17C 2260/044 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A power supply apparatus for detecting a gas leak, the power supply apparatus comprising:
a power supply pipe connected to a pump;
a flexible joint pipe whose one side is connected to the power supply pipe and an other side is connected to a power supply unit;
a power inlet unit disposed on the power supply pipe; and
a leak detection unit configured to fill the power supply pipe with an inert gas and detect a gas leak according to a change in pressure,
wherein a power line supplying power to a motor in the pump from the power supply unit passes through the power supply pipe,
wherein one side of the power inlet unit faces the pump and an other side faces the power supply unit configured to connect the power line and prevent a gas in the pump from leaking from the one side to the other side,
wherein the leak detection unit includes:
a gas discharge unit configured to discharge the inert gas in the power supply pipe;
a discharge pipe connecting a discharge unit of the power supply pipe to the gas discharge unit; and
a controller configured to control an inflow and discharge of the inert gas and detect leakage of the inert gas, and
wherein, when the pressure in the discharge pipe increases or becomes greater than a first critical pressure, the controller determines that an active gas in the pump leaks, and when the pressure in the discharge pipe decreases or becomes lower than a second critical pressure, the controller determines that the inert gas leaks from the leak detection unit.