LIQUID-SEALED PUMP OPERATING METHOD, MEMBRANE DEGASIFIER, PURE WATER PRODUCTION SYSTEM, AND PURE WATER PRODUCTION METHOD
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United States of America
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Issued Date -
Dec 5, 2024
app pub date -
Jul 20, 2022
filing date -
Jul 20, 2022
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Abstract
A liquid-sealed vacuum pump operating method includes: discharging a liquid from a vacuum pipe connected to a liquid-sealed vacuum pump; supplying a sealing liquid under pressure to the liquid-sealed vacuum pump such that the liquid-sealed vacuum pump contains a predetermined amount of the sealing liquid, and driving the liquid-sealed vacuum pump until a pressure in the vacuum pipe is reduced to a predetermined pressure; and stopping supply of the pressurized sealing liquid to the liquid-sealed vacuum pump in a case in which the pressure in the vacuum pipe is reduced to the predetermined pressure, and circulating the sealing liquid in a circulation flow path from the liquid-sealed vacuum pump to maintain a state in which the predetermined amount of the sealing liquid is present in the liquid-sealed vacuum pump.
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