The design of the piping purified water system 2

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provenance:GZ YibaoDate Added:2006-02-23

In order to guarantee the fluid matter, the tube path ¡Û DN50 that biggest water supply tube, rest tube the path makes sure according to the calculation.

2.4 The assurance of the i value

A few unit lengths of in common use tube material follow the distance water head to lose to compute the formula as follows:

Plastics tube of ¢Ù :I=0.000915 Q1.774s/ d4.774j

Stainless steel tube of ¢Ú :Take care of with the aluminum together, can release according to the formula of Darcy Weisbbah

The ¢Û aluminum compound tube:I=0.0246( the Q1.75 ¦Ã 0.25)/ d4.75j

Q in type- the calculation discharge, m3/ s

¦Ã - The sport glues the degree of , m2/ s( general 10 ¡æ the hour takes 1.29710-6 m2s/ ses of ¡Ás, it is worth to change with the temperature)

The dj- piping path inside the calculation, m

The i- piping unit length water head lose, Pa/ m

20%30% of ¡« that loses to press to follow the distance to lose of the partial water head of various tube material account.

3 supply water the way

Total to say, the main water supply equipments of the piping purified water has circulation pump and changes the pump of , the electromagnetism valve...etc., supplying water the way also not outside above several kinds of the equipments combination.

The circulating pump of ¢Ù settles the circulating £Û of hour with figure 1( c) is a £Ý

Circulating pump can according to the scale of the building and concrete circumstance but constitution, this kind of way request circulating pump settle hour circulating and should avert from use high peak of water with prolong the service life that water pump.