Degassing apparatus

A degassing apparatus comprising:

• a first degassing module and a second degassing module, each having a gas permeable membrane to separate a fluid circulation space and a reduced-pressure space from each other;
• vacuum piping having discharge piping sections continuous to respective discharge ports of the first degassing module and the second degassing module, and a discharge assembly section configured to assemble the discharge piping sections, the vacuum piping being communicatively connected to the respective reduced-pressure spaces of the first degassing module and the second degassing module;
• a pump communicatively connected to the vacuum piping and configured to discharge gas in the respective reduced-pressure spaces to atmosphere through the vacuum piping;
• atmospheric release piping having release piping sections continuous to respective release ports of the first degassing module and the second degassing module, and a release assembly section configured to assemble the release piping sections, the atmospheric release piping being communicatively connected to the respective reduced-pressure spaces of the first degassing module and the second degassing module;
• an atmospheric release valve communicatively connected to the atmospheric release piping and capable of introducing atmosphere into the respective reduced-pressure spaces through the atmospheric release piping;
• and
• a control unit configured to control operation of the pump and the atmospheric release valve, wherein
• when a degassing process is being performed in at least one of the first degassing module and the second degassing module, the control unit performs control to close the atmospheric release valve to perform a process of discharging gas in the respective reduced-pressure spaces by the pump, and after the degassing process is finished, the control unit performs control to open the atmospheric release valve to open each of the respective reduced-pressure spaces to atmosphere at the same time.