Cg-47级顾问号01-85a(附录一)(未分类)草原/掩蔽器空气系统气流操作制导本cg-47级咨询，附录一的目的是提供草原/掩蔽系统操作的进一步指导。2.草原/蒙面气流受到海洋生长和泥沙水乳化液的限制。为了减少淤泥水乳化液问题，在进入港口、浅滩低水位或淤泥水之前，应确保草原/蒙面系统的安全。如果草原/蒙面系统在进入含粉水后得到保护，随着草原/蒙面空气压力降至零，水和泥沙将进入草原/蒙面带。3.Navsea正在开发草原/面具操作技术手册。在有关屏蔽器操作的临时指导技术手册发布之前:a.屏蔽器调节阀在低流量时难以调节皮带的压力，并且随着皮带堵塞而加重。 THE RESULTING VALVE OSCILLATION MAY VARY THE MASKER FLOWS SUFFICIENTLY TO BE DETECTED BY OVER-THE-SIDE NOISE SURVEYS. FOR VALVES THAT FLUCTUATE IN EXCESS OF PLUS OR MINUS 5 PSIG, SHIPS SHOULD SECURE THE REGULATOR VALVE AND OPERATE THE SYSTEM WITH THE BYPASS VALVE THROTTLED TO MAINTAIN A MASKER SUPPLY PRES- SURE CONSISTENT WITH PARAGRAPH 2A OF REFERENCE A. B. AFTER BELTS HAVE BEEN CLEANED, EACH EMITTER BELT GLOBE VALVE SHOULD BE THROTTLED TO OBTAIN THE FLOW RATES LISTED IN REFER- ENCE A. NOTE THAT THE FLOWMETERS SHOULD BE WORKING AND CALIBRATED AND USED ONLY TO ESTABLISH AND BALANCE THE FLOW RATES AND FOR PERIODIC CHECKS. ENSURE THAT THE FLOWMETERS ARE SECURED DURING NORMAL MASKER OPERATION TO PREVENT DAMAGE DUE TO CLOGG- ING AND CORROSION. ONCE BELTS ARE CLEANED AND NORMAL FLOW RATES ARE RE-ESTABLISHED, AUTOMATIC REGULATION MAY POSSIBLY BE RESUMED BY OPENING THE MASKER REGULATOR CUT OUT VALVES AND SECURING THE BYPASS VALVE. REGULATOR VALVE BINDING MAY PRECLUDE THIS AND RE- QUIRE CONTINUED BYPASS OPERATION. 4. NAVSEA IS DEVELOPING TECHNICAL PROCEDURES FOR CLEANING AND HYDROBLASTING THE PRAIRIE/MASKER SYSTEM.
CG-47