1 / 18 LINE SERVICE IDENTIFICATION SYMBOL SERVICE 符号 帮助 AS AIR SYSTEMS 空气系统 IA INSTRUMENT AIR 仪表风 PA PLANT AIR 工厂风 DA 烧焦空气 STEAM AND CONDENSATE SYSTEMS 蒸汽和凝液系统 HC HIGH PRESSURE CONDENSATE 高压蒸汽凝液 MC MEDIUM PRESSURE CONDENSATE 中压蒸汽凝液 LC LOW PRESSURE CONDENSATE 低压蒸汽凝液 SC SURFACE CONDENSATE 表面凝液 DS DILUTION STEAM 稀释蒸汽 HS HIGH PRESSURE SREAM 高压蒸汽 MS MEDIUM PRESSURE STEAM 中压蒸汽 LS SUPERHEATED LOW PRESSURE STEAM 过热低压蒸汽 PS SATURATED LOW PRESSURE STEAM 饱和低压蒸汽 SHS SUPER HIGH PRESSURE STEAM 超高压蒸汽 DRAIN SYSTEMS 排放系统 CD CHEMICAL DRAIN 化污 LD LIQUID DRAIN 液体排放 ND NON-CONTAMINATED POLLUTION DRAIN 无污染排放 OD OILY DRAIN 油污 EXHAUST AND VENT SYSTEMS AV ATMOSPHERIC VENT (NOT FROM PSV) 通大气（不从安全阀） SV SAFETY VALVE TO ATMOSPHERE 安全伐排大气 FLARE SYSTEMS 火炬系统 DF DRY FLARE 干火炬 WF WET FLARE 湿火炬 GAS SYSTEMS 气体系统 FG FUEL GAS 燃料气 2 / 18 HG HYDROGEN 氢气 NG NITROGEN 氮气 SPECIAL LIQUID SYSTEMS 特殊液体系统 CL CAUSTIC 腐蚀性 QO QUENCH OIL 急冷油 SO SEAL OIL 密封油 WO WASHING OIL 冲洗油（压缩机） PROCESS SERVICE (NORMAL) P PROCESS 工艺 REFRIGERANT SYSTEMS BR BINARY REFRIGERANT 二元制冷 PR PROPYLENE REFRIGERANT 丙烯冷剂 WATER SYSTEMS 水系统 BFW BOILER FEED WATER 锅炉给水 FW FIRE WATER 消防水 IW INTERMEDIATE WATER 二次水 CWR COOLING WATER RETURN 冷却水回水 CWS COOLING WATER SUPPLY 冷却水 PW POLISHED WATER 工艺水 QW QUENCH WATER 急冷水 UW UTILITY WATER 工业水 WW WASTE WATER 废水 MISCELLANEOUS ABBREVIATION AND SERVICE SYMBOLS 各种缩写和符号 A AIR MOTOR 空气马达 ACC ACCESSIBLE 可接近的 ATM ATMOSPHERE 大气 BL BATTERY LIMIT 界区 BTS BUBBLE TIGHT SHUT-OFF 缓慢紧密切断 BV BY VENDOR 由供应商提供 CONN CONNECTION 连接 CSC CAR SEAL CLOSED ...
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