Solenoid valve housings for blowout preventer

摘要

A subsea blowout preventer control system has horizontally oriented solenoid valve housings. Solenoid valves mounted within each of the solenoid valve housings are electrically controlled to selectively provide a hydraulic pilot signal to a hydraulic valve. A vertically extending central chamber contains a dielectric liquid and extends alongside the solenoid valve housings. A communication tube for each solenoid valve housing has an open upper end within the central chamber adjacent an upper end of the central chamber. Each of the communication tubes has an open lower end extending into one of the solenoid valve housings for communicating dielectric liquid in the central chamber with an interior of each of the solenoid valve housings. A separate drain line mounted to each of the solenoid valve housings enables draining of one of the solenoid valve housings for maintenance without requiring draining of other of the solenoid valve housings.

主权项

1. A blowout preventer control system, comprising:
a plurality of solenoid valve housings; a plurality of solenoid valves mounted within each of the solenoid valve housings; a plurality of hydraulic valves, each of the hydraulic valves being hydraulically connected to and controlled by one of the solenoid valves; a central chamber containing a dielectric liquid; a plurality of communication tubes, each of the communication tubes communicating the dielectric liquid in the central chamber with an interior of one of the solenoid valve housings, each of the communication tubes having an open lower end in one of the solenoid valve housings and an open upper end within the central chamber; and a separate drain line mounted to each of the solenoid valve housings to enable draining of one of the solenoid valve housings for maintenance without requiring draining of other of the solenoid valve housings.