电解槽维护注意事项翻译-中英对照
1．维护工作不要将油脂和氢氧气接触，以防油脂氧化自燃。
2．不在同一室内同时排放氢氧气体
3．置换工作必须彻底，防止死角残留余气发生意外伤害。
4．使用气瓶必须使用相应的减压阀，开放时操作者应站在阀的侧面，动作要缓慢。
5．使用各类仪表仪器测量分析时应注意仪表的极性和量程
6．电解槽抽配电解液时不得将电解液洒到槽体上，防止极间短路或爬电事故发生。
7．尽量减少用水冲洗电解槽
8．整流柜上的电位器操作时不宜过猛，应缓慢调整以免损坏设备。
9．电解槽停机时应采用自控系统排气泄压
10．电解槽停机时先停主回路电源，再停控制回路电源、气源。
第八章 污水处理
第一节 生活污水系统的概况
一．系统的组成：
该组合式污水处理设备分为二组，每组处理能力为5m3/h，每组设有独立的预曝池、初沉池、接触氧化池、二沉池、消毒池、过滤池、污泥池等，每组可单独运行也可二组同时运
行。
二．系统的工艺流程：
厂区生活污水
事故排放
粗格栅片 清污机 调节池 污水提升泵 预曝调节池
风机
上清液
二沉池 二段接触氧化池 一 段接触氧化池 初沉池
污泥 污泥池
过滤池 消毒池 吸粪车运送
氯气 加氯机 排放或回用
三．处理后水的品质：
经二级生物氧化处理、消毒、过滤后出水水质：
BOD5≤10mg/L
COD≤50mg/L
SS≤10mg/L
第二节 系统主要设备的技术要求
一．粗格栅片：
1．用途：用于拦截原污水中大颗粒杂物。
2．型号：BGZ-500
3．设备宽度：0.5m；栅隙：10mm。
二．循环式齿耙清污机：
1．用途：清污机用于去除原污水中大颗粒杂物。
2．型号：XGC-500
3．设备宽度：0.5m；齿隙宽度：5mm
三．生活污水升压水泵：
1．用途：提升生活污水。
2．水泵型号：32YW8-12；水泵设计流量：Q=5m3/h；水泵设计扬程：H=0.13MPa；电机功率：N=0.75kW；水泵出水口接有一路分支，以备事故状态时将污水打入室外雨水管道。
四．污水预曝池：
1．污水经调节池用液下泵提升至预曝池，在此进行预曝气。
2．污水停留时间：2h；曝气量：4-6m3/m2.h；曝气形式：ABS穿孔管。
五．初沉池：
1．污水经预曝池自流入初沉池，在此预沉大颗粒物质。
2．结构型式：竖流式；表面负荷：2.5m3/m2.h；分离区上升分离沉淀时间：约1.25h。
六．两级生物接触氧化池：
1．停留时间：8h
2．气水比： 15-18:1
3．填料类型及比表面积：半软性填料，1390m2/m3
4．污泥负荷：0.02-0.10BOD/kgMLSS.d
5．内悬浮物固体平均NW：6000-10000mg/l
6．容积负荷Fr：0.15-0.7kgBOD/m3.d
7．气装置类型及氧转移率：膜式曝气管/20-30%（详见5.4.2.10）
8．其他未提及参数：
填料填充率：80%
曝气装置每组8套，共16套。
七．二沉池：
1．生化处理后的污水流入沉淀池，进行再次沉淀。
2．结构型式：竖流式；表面负荷：1.2m3/m2.h；分离区上升分离沉淀时间：约2.45h；
二沉池活性污泥通过气力提升至初沉池，提高初沉效果。
2) Sodium pyrosulfite protection:
Flush the system with 1%-1.5% sodium pyrosulfite solution; when flushing process of 1.0% sodium pyrosulfite sodium is finished, close all gate of inlet and
outlet passage. Check the pH value of protection fluid every week; when pH<3 or used more than one month replaces the protection fluid.
c. Under the normal condition, the downtime of hyperfiltration device shall not more than 72 hours; flush the device every day during the downtime period;
the flush time is about 15-20 minute.
d. During the downtime of hyperfiltration device, the environment temperature shall not be lower than 5℃ for preventing solution freeze in the pressure
vessel; and the environment temperature shall not be higher than45℃ as well to avoid the degeneration acceleration of membrane.
3. Procedure controls schedule of sea water hyperfiltrations system:
No. Operation
Process
Valve condition Revolution equipment condition Time
Feed Valve Fortified water solution discharging valve Water production discharging valve Flushing valve PX Booster pump
High pressure pump Metering pump Flushing pump min
1 Startup ○ ○ 5
○ ○ ○ 3
○ ○ ○ ○ 3
○ ○ ○ ○ ○ ○
2 Operating ○ ○ ○ ○ ○
3 Shut down ○ ○ ○ ○ ○ ○
○ ○ ○ ○ ○ ○
○ ○ ○
○ ○ ○ ○ 10
Note “○”means the valve is opened or pump is in a open condition; the time parameter above may be adjusted in case of debugging.
4.2 Program control schedule of second class hyperfiltrations system:
No. Operation
Process
Valve condition Revolution equipment condition Time
Feed Valve Fortified water solution discharging valve Water production discharging valve Flushing valve Booster pump
Metering pump Flushing pump min
1 Startup ○ ○ 5
○ ○
○ ○ ○ ○ 3
2 Operation ○ ○ ○
3 Shut down ○ ○ ○ ○
○ ○
○ ○ ○ ○ 10
Note “○”means the valve is opened or pump is in a open condition; the time parameter above may be adjusted in case of debugging.
8. Operation of mixing bed:
1. Commissioning of mixing bed:
Open the water gate and air valve; open the front discharging gate while there has water inside the air gate; open the water gate when the quality of flow
out water is qualified; close the front discharging gate; mixing bed is operated in a normal condition.
2. Regeneration of mixing bed:
⑴.Condition of mixing bed decommissioning:
a. Cycling water production volume reached preset value
b. Conductivity of mixing bed outlet (on-line monitor) ≥0.2us/cm
c. Silicon dioxide content of mixing bed outlet (on-line monitor) ≥20ug/l
⑵. Regeneration procedure of mixing bed: backwashes layers, sedimentation, water discharging, pilot injection, feeding the regeneration fluid, replacement,
cleaning, water discharging, mixing, feeding and direct flushing.
⑶. Procedure control schedule of mixing bed:
Valve Water production Backwashes layers Sedimentation Water discharging Pilot injection Feeding regeneration fluid replacement
cleaning Water discharging Mixing Feeding Direct flushing
Feeding the water ○ ○ ○ ○
Water production ○
Back discharging ○
Back flushing feeding ○ ○
Direct washing discharging ○ ○ ○
Alkali feeding ○ ○ ○
Acid feeding ○ ○ ○
Air discharging ○ ○ ○ ○ ○
Air compression ○
Intermediate discharging ○ ○ ○ ○
Water discharging ○
Concentrated acid ○
Concentrated alkaline ○
Injection water 1 ○ ○ ○
Injection water 2 ○ ○ ○
Time min 15 5 2 3 30 20 10 3 10 2
Note “○”means the valve is opened or pump is in a open condition; the time parameter above may be adjusted in case of debugging.
武汉翻译公司
2013.7.17