冷凝水精处理

冷凝水过滤是发电厂的关键系统。一个稳定的和可靠的冷凝水过滤系统可以保护锅炉和汽轮机的安全运行,延长树脂的再生循环,减少系统的其实时间。当机组运行时,锅炉的主要污染物是硅和铁,铁会腐蚀和影响锅炉和汽轮机的安全运行。铁的孔径大小是3-15um,当温度变化,铁在冷凝水中融化时是过滤处理的最好时机。

 

冷凝水过滤系统流程图 

 

① Removal Iron before Mixed Media Bed  ( ultra supercritical thermal power generating units )——前置过滤器去铁过滤

Function: Remove iron and copper corrosion particles and extend de-salt system operating cycle and protect resign. 10um depth filters are commonly used when system starting, 5um/1um absolute filter cartridges are used when system is running regularly.

 

  • ■ 50XP Filter/GUF Filter
  • ■ 64-H2D Filter Cartridge
  • ■ HF150 Filter Cartridge

 

② Powdered Resin Precoat Filter System (steam turbine unit)——终端过滤

Function: Widely used in steam turbine unit. Cover mixture which made of powdered ion exchange resin and fiber powder on PP wound filter cartridge. Remove iron, Colloid silicones, suspended solids and metallic oxides and have some effect on ion exchange. Corrosion items are separated by powdered resin from PP wound filter. You can flush corrosion items with powdered resin by explosion the filter. PP wound filter to be support body of powdered resin prevent the powder into heat system. 4~5um is commonly used.

 

■ 50XP Filter 

 

③ Boiler Feed Water Pre-RO Filtration——保安过滤

 

Fuction: Stop new particles which are produced in the process or not removed in prefiltration to go into RO system, and protect high pressure pump and RO system. A good Pre-RO filtration system can increase inlet water quality remarkably before go into RO system. RO membrane life time can be extended,chemical regeneration can be reduced, therefore system cost is reduced too. 5um/10um is commonly used.

 

Item Flow Rate Part Number
Option A
≥100m³/h
Option B
<100m³/h
GUF(聚丙烯深层滤芯), 
SGD(高纳污保安滤芯)

如需更多资料,请联系科百特销售部:0571-87704266 / sales@cobetterfilter.com