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As an important accessory
plant and system, especially the water
treatment shop of large thermal power
station and power plant, the water system
has large treating capacity, complex process
and high process requirement, the running of
the system relates to the sage operating and
dependability of the electricity plant.
Most of the electricity plants adopt the
group tech of reverse osmosis equipment and
ion exchanger, it can save 50%-90% of acid
and alkali consumption of regenerated resin
compared with single ion exchanging system,
and due to its flexible water-making
process, strong adaptability to the
fluctuation of concentration of raw water,
and stable quality of water output , the
production is guaranteed, and the labor
intensity is reduced, the economic,
environmental and social benefits are
gained.
In China, the reverse osmosis tech was
introduced to prepare supply water for the
high-pressured boilers in the 70s of the
20th century, so we are experienced in this
field and gain high benefit.
锅炉补给水的水质标准 Index of
boiler supply water
水处理系统
Water treatment
system |
硬度
Hardness
（μmol/L） |
二氧化硅
Silicon dioxide
（μg/L） |
电导率（25%）
Conductivity
（μS/cm） |
碱度
Alkalinity
（mmol/L） |
一级化学除盐系统出水
Water output of
first-level
chemical
desalination
system |
≈0 |
≤100 |
≤10** |
- |
一级化学除盐加混床系统出水
Water output of
first-level
chemical
desalination and
system and
bed-mixing
system |
≈0 |
≤20 |
≤0.2 |
- |
石灰、二级钠离子交换系统出水
Exchange system
of lime, second
evel Sodium ion |
≤5.0 |
- |
- |
0.8-1.2 |
氢-钠离子交换系统出水
Exchange system
of hydrion and
sodium ion |
≤5.0 |
- |
- |
0.3-0.5 |
二级钠离子交换系统出水
Exchange system
of sodium ion |
≤5.0 |
- |
- |
- |
注：* 当原水中非活性硅含量较同时，此指标应为全硅含量；
**
用于5.9Mpa及以上锅炉时，出水导电率应控制≤5μS/cm（25℃）
Remark：
* the index is total silicon
when the inactive silica
content is high in the raw
water.
* * when used in the boilers
of 5.9 Mpa or above, the
water output and electric
conductivity shall be
controlled ≤ 5μS/cm (25℃) |
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