During maneuvering, a vessel has just proceeded from full ahead to a dead slow condition. Which of the following actions reflects the first response of the gland seal regulator shown in the illustration? See illustration SE-0004.
• Behavior of a gland sealing steam regulator when turbine load/speed is reduced from full ahead to dead slow • The sequence of operation in a pressure‑regulating system: sensing element → pilot valve → main valve → downstream valves • Role of the bellows/diaphragm assembly (K) vs. the pilot valve (J) and the individual valves C and D in the illustration SE-0004
• When the ship goes from full ahead to dead slow, does the gland pressure tend to become too high or too low, and which part of the regulator is designed to sense that change first? • Looking at the linkage in the drawing, what mechanical movement must occur before pilot valve "J" can change position or before valves "C" and "D" can open or close? • Trace the force path starting from the pressure in chamber "K": which component feels that pressure change directly, and which components only move after that first part has moved?
• Identify which component is the primary sensing element for pressure/vacuum changes (look closely at part "K" and its connection to the linkage). • Confirm the mechanical linkage direction: when pressure in chamber "K" changes, which way will the bellows move, and what does it pull/push next? • Make sure the option you choose is an action that can occur before any change in main valve "E" position or in the individual glands’ valves C and D.
No comments yet
Be the first to share your thoughts!