氢气干燥装置说明翻译-中英对照
1．经处理后产品氢应达到下述要求：
湿度：露点－500C 温度：400C ` 纯度：99.9%
2．规范：
处理容量： 5Nm3/hr
工作压力： 3.2MPa
再生方式： 电加热
四．氢气贮存罐：
1．容积： 13.9m3
2．工作压力： 3.0MPa
3．材质： 16MnR
4．数量： 3台
五．压缩空气贮存罐：
1．容积： 6.0m3
2．工作压力： 0.8MPa
3．材质： 16MnR
4．数量： 1台
六．除盐水冷却装置：
1．除盐水箱
容积： 2.0m3
材质： 不锈钢
数量： 1台
2．循环水泵
型式： 卧式离心泵
过流部分材质： 不锈钢
数量： 2台
3．海水过滤器
过滤精度： 0.1mm
本体材质： 钢衬胶
滤网材质： 聚丙烯
数量： 1台
4．热交换器
数量： 2台
5．装置范围内的主要管道：
换热器出口除盐水管
材质: 不锈钢
规格： 45x2.5
第三节 系统的运行
一．制氢设备的初启动：
1．配制电解液：
取适量工业纯氢氧化钾，放入溶碱箱内。
向碱箱内加除盐水，搅拌均匀，分析此氢氧化钠溶液的浓度，并控制在20%--25%的范围内。
向配制好的氢氧化钾溶液中加入已溶解成溶液的重铬酸钾使其浓度为0.2%作为缓蚀剂。
重铬酸钾应先用除盐水溶解成溶液后，才可倒入碱溶液箱内，再次搅拌均匀，电解液配制完毕。
配制好的电解液应沉淀24小时后方可使用。
2．向电解槽内加电解液：利用碱液循环泵将碱液送至电解槽。
3．向系统加水：利用补水泵，向氢洗涤器加水，同时要注意氢氧分离器水位。
4．用氮气吹氢系统：用氮气吹氢分离器至氢出口间的管道。
5．氢大罐注水：
将除盐水管用橡胶软管与氢大罐底部排水门连接好。
打开大罐顶部排气门。
向大罐进水至顶部有水排出为止，并加堵板。
启动电器设备，开始向氢大罐进氢。
三．制氢设备的正常启动：
1．设备的检查：检查电器设备周围清洁无杂物，可正常备用；氢氧分离器的水位正常，如相差大，可用氧侧手动排空门调节。
2．启动除盐水冷却装置。
3．启制氢装置，控制系统将自动进行。
四．制氢设备的停运：
1．停制氢设备，控制系统将自动进行。
2．确认制氢系统停运正常后，停除盐水冷却系统。
第四节 制氢站安全技术措施
1．制氢站的全体工作人员必须遵守《电业安全规程》（热力机械部分）（发电厂和变电所电气部分）的有关规程
2．制氢设备带压时禁止检修工作，必须工作时，应有安全措施。
3．制氢设备不允许超压，严禁负压运行。
4．禁止与工作无关人员进入制氢间及干燥间，工作人员不准穿带钉子的鞋。
5．新安装和大修后的氢气系统必须做耐压试验及清洗置换后才能投入使用
6．制氢站及氢气运行现场应悬挂“氢气运行，严禁烟火”标示牌，并按规定备有必要数量的消防器材。
7．电解槽运行时禁止两只手分别接触两个不同电极
8．配制或抽电解液时，应背风站立。同时应戴胶手套、穿深筒胶靴及佩戴防护眼镜。
9．电解槽及氢气管道检修时应先用氮气或二氧化碳置换合格后方可检修。
10．制氢气设备维护应使用专用工具，使用一般工具时，应涂上黄油。
11．在制氢站内或氢冷设备上动火时，应严格履行厂动火工作票制度。
12．氢气管道、阀门和水封等装置冻结时，只能用热水蒸气加热解冻，严禁使用明火解冻。
13．设备、管道及阀门连接点泄漏检查，可用肥皂水或检漏仪进行检测，严禁使用明火找漏。
14．排放或储存带有压力的氢气或氧气时，禁止剧烈排放，应缓慢打开阀门控制流量以防摩擦自燃发生意外事故
15．严禁氢氧气混合防止爆鸣气体产生
16．氢气系统发生火灾时应保证系统正压状态，以防回火扩大事故。同时注意氢气火焰不易察觉，救护人员应防止外露皮肤烧伤。
17．当电解槽系统大量碱液外漏时，应降低压力，减少碱液外漏量，同时注意碱液伤害。
V. Operation of second class hyperfiltration system:
1. System startup:
●Open the water gate and discharging gate of water production; closes discharging gate of the fortified flow;
●Open the water gate and discharging gate of the fortified flow;
●Open the water gate and discharging gate of water production; startup the high-pressure pump;
2. Systems operation: When water flow is qualified, close the discharging gate of water production and the system run into operation;
3. Shut down the system:
●Open the discharging gate of the fortified flow;
●Close the water gate; open discharging gate of the fortified flow; close the high-pressure pump;
●Open the flushing water gate; start flushing water pump;
●Maintain for a proper period, stop flushing water pump, close the flushing water gate, discharging gate of the fortified flow and discharging gate of the
fortified flow; the system changes to the backup mode;
VI. Filter backwash:
1. Backwash of multi-medium filter:
Close the water gate when it is qualified; the lower discharging gate filter changes to the backup mode;
2. Backwash of activated charcoal filter:
●Back washing: open backwash gate, upper discharging gate; start backwash water pumps, control the backwash flow to prevent the leakage of filtering
materials;
●Static: stop the backwash pump for a proper period and close the backwash gate;
●Direct flushing: open the water gate for a proper period; close the discharging gate when the water flow out; open the lower discharging gate; close the
water inlet gate when the quality of water leakage water is qualified; the filter of lower discharging gate changes to the backup mode;
3. Program control schedule of multi-medium filter system:
No. Operation
Process
Valve condition Revolution equipment condition Time
Feed
Valve Discharging
Valve Backwashing
Valve Upper discharging
Valve Lower discharging
Valve Air admission
Valve Raw
Water
Valve Backwashing
Valve Root’s air blower min
1 Water production Direct flushing ○ ○ ○ 5
Water production ○ ○ ○
2 Back washing Discharging water ○ ○ ○
Gas Flushing ○ ○ ○ ○ 3
Backwashes ○ ○ ○ ○ 10
Stewing ○ 3
Direct flushing ○ ○ ○ 20
3 Shut down Shut down ○
4 Backup Backup
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. Program control schedule of activated charcoal filter system:
No. Operation
Process
Valve condition Revolution equipment condition Time
Feed
Valve Discharging
Valve Backwashing
Valve Upper discharging
Valve Lower discharging
Valve Raw
Water
Valve Backwashing
Valve min
1 Water production Direct flushing ○ ○ ○ 5
Water production ○ ○ ○
2 Backwashing Backwashing ○ ○ ○ ○ 15
Stewing ○ 3
Disingrect flu ○ ○ ○ 30
3 Shut down Shut down
4 Backup Backup
Note “○”means the valve is opened or pump is in a open condition; the time parameter above may be adjusted in case of debugging.
7. Flushing and clean of hyperfiltration system:
1. Hyperfiltrations systems flushing: The flushing process of sea water hyperfiltration system is the same with the description of item c. d and e of 4.3.⑷
The flushing process of second class hyperfiltrations systems flushing is the same with the description of item c and d of 5.3;
2. Hyperfiltrations systems cleaning:
⑴. Cleaning condition of hyperfiltration system:
a. The pressure difference membrane part surpasses the initial pressure difference about 10%;
b. The continuous desalinization rate of hyperfiltration device reduce 10% above compared to the initial value
c. The hyperfiltration device shall be suspended for quite a long time;
d. The fresh water production of hyperfiltration device reduces 10% above;
⑵. General characteristic of hyperfiltration membrane pollution:
Phenomenon
Materials Salty transmissibility Differential pressure Water production
Metal oxide Increase quickly Increase quickly Reduce rapidly
Calcium carbonate Reduce rapidly Increase gradually Reduce slightly
Calcium carbonate Increase Increase Reduce slightly
Colloidal substance Increase slowly Increase slowly Reduce slowly
Organic matter Increase the speed to be quick Increase slowly Reduce slowly
Microorganism Increase Increase Reduce
⑶. Choices of membrane cleaning solution:
Material
Cleaning solution Sulfate deposits Carbonate deposits Metal oxide Inorganic colloid Silicon Microorganism Organic
0.1%NaOH
0.1%EDTA-Na Applicable
Applicable Best Applicable
0.1%NaOH
0.05%Na-DDS
Good Good
1.0%STP
1.0%TSP
1.0%EDTA-Na
Good Good
0.2%HCl
Best 0.5%H3PO 4
Applicable Applicable 2.0% citric acid
Applicable 0.2%NH2SO3H
Applicable Applicable 1.0%Na2S2O4
Good
Note:
Na-DDS is lauryl sodium sulfate; STP is sodium tripolyphosphate; TSP is trisodium phosphate.
⑷.Shut down protection of hyperfiltration device:
a. After hyperfiltration shut down, it is required to carry out the low pressure flush process without the content anti-sludging agent for 15-20 minute.
b. When the downtime of hyperfiltration device is more than 7 days, it is required to apply the following measure for protection;
1) Formaldehyde protection:
Flush the system with 0.5%-0.7% formaldehyde solution (adjust the PH value to 5-6 with hydrochloric acid); when the formaldehyde content of fortifiedsolution is about 0.5%, the flushing process shall be ended; close all gate of inlet and outlet passage. This measure requires changing the protection fluidevery month.
武汉翻译公司
2013.7.19