All the closed
Water / water hot exchanger
All the closed cooling tower
All the closed
Water / water hot exchanger |
◆ First, there are the following several
kinds of electric stove cooling ways according to different investment
magnitude, environmental requirement and reliable durability of
apparatus.
→ all the closed
Adopt the purified water to be made for the circulation cooling
water, water cools the result best, dependability high, durable,
not polluted by environment and there is little occupation of land,
but investment is large. (Fig.1)
→Powers adopt totally closed and electric stove cool with open (Fig.2).
It is better to cool for power and dependability high, durable,
the same as investment is moderate.
→the power adopts the heat exchanger of modes and electric stove
cool with open (Fig.
3)
Electric stove is cooled to the power effectually, dependability
high, durable and investment is relatively small.
→All the least adopt open (Fig.
4)
Investment is smallest, but it is large of the floor space, have
water pollution issue, as same as electric stove component easy
to lose, decrease.
● Attention: In the place where temperature is lower of winter,
there is water within the apparatus to should pay attention to not
letting the component freezes, in order to prevent freezing to crack
and leak and infiltrate.
◆Second, the cooling water is required:
→Enter water pressure strength: 0.2Mpa ~ 0.3Mpa
→Enters water temperature: +5~35 ℃
→Water quality: PH 6~9
→Temperature of output water < 55℃
◆Third, water quality is required:
Circulate for guarantee cooling water quality, the national standard
of our country (GB10067.1-88 electro-heat installation basic technical
condition is general and partial) are as follows for the stipulation
of the quality of cooling water:
PH 7.0-8.5
Suspension solid < 10mg/L
Alkalinity < 60mg/L
Chlorine ion average <60mg/L
Sulphuric acid of < 100mg/L
Iron dissolvability solid < 2mg/L
Dissolvability solid of SiO2< 6mg/L
Dissolvability solid<300mg/L
Electrical conductivity <500μs/cm
Total hardness of Cao (mg equivalent /L)<10(with electricity);
<60(without electricity)
The receptivity of cooling water should accord with the ZBK61002-90
Working voltage receptivity of water (Ω, cm)
~1000 2000
>1000~2000 6000
>2000~3000 14000 |
●Note: Manufacturer of forging’s client asks the receptivity of
cooling water to reach 20000~50000Ω, cm
Fourth. the technology that water’s quantity will be offered according
to manufacturer business is asked to design and provide.
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