Download Aging study of boiling water reactor high pressure injection by D A Conley; Jerald L Edson; C F Fineman; Idaho National PDF

By D A Conley; Jerald L Edson; C F Fineman; Idaho National Engineering Laboratory.; U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering

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System configuration Valve nomenclature - Standby Operation Test Steam supply valve to turbine C 0 0 Steam supply line isolation valve (inboard) 0 0 0 Steam supply line isolation valve (outboard) 0 0 0 Pump suction from condensate storage tank valve 0 0 0 Testable air-operated check valve C 0 C Pump discharge valve C 0 C Pump discharge valve 0 0 0 Test bypass valve to condensate storage tank C C 0 Redundant shutoff valve to condensate storage tanks C C 0 Minimum flow bypass valve to suppression pool C OK OK Steam line drain isolation valve 0 C C Steam line drain isolation valve 0 C C Condensate drain pot drain valve C C C Condensate drain pot drain valve C C C Pump suction from suppression pool valve C OIC C Pump suction from suppression pool valve C OIC C O--Open C-Closed OK-Opedclosed NUREGICR-5462 16 BWR HPI Systems Descriptions To suppression pool - Injection flowpath =Steam flowpath 9-1009 Note: Acronyms are defined on the following page.

This reservoir typically has a capacity of approximately 590 L (155 gal). 7 MPa (100 psi) to the turbine stop valve, the control valve operators, and the turbine governor. 26-MPa (38-psi) oil. All oil except that going to the turbine control valve and the turbine stop valve passes through a filter. In addition to the filters, the oil going to the turbine bearings and the main pump passes through the lube oil cooler mounted on the turbine base. The lube oil cooler uses water from the booster pump discharge to maintain the oil temperature between 32 and 66°C (90and 15OOF).

The motor operators incorporate limit switches, torque switches, electrical contacts, and a power unit to drive the operator. 6 Turbine Exhaust. The turbine exhaust line carries steam from the turbine exhaust to the suppression pool below the water level. This line is normally kept free of water by a system that drains condensate to the gland seal leak-off condenser. Also, a vacuum breaker between the exhaust line and the suppression pool free air prevents a vacuum, caused by condensing steam, from siphoning suppression pool water into the line.

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