Sanyo DE Examples of Installation, Cooling water blow system, Over Flow, Continuous Flow

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

Cooling water blow system

A part of circulating water should be blown to prevent degrading of cooling water quality.

Since concentration ratio is considered about 3 to 4 blowing, water quantity is calculated as follows.

N: Concentration ratio generally N=3 M : Make-up water volume

E : Evaporation loss E= 3,024✕1.85 (exhaust factor)

575 (Latent heat of evaporation at 40° C)

W

: Splashing loss

generally W=0.2% of circulating water volume

B

: Blow volume

M

: E+W+B

N=

E+W+B

W+B

by the above,

1

N

B=

• (E+W-NW)

M=

•E

N-1

N-1

Figure 70.

Manual valve

Over Flow

1

Make-up

Make-up water is over supplied

Absorption

water

chiller

by manual valve for over-flow

in cooling tower.

P

Over flow

Figure 71.

2

Continuous Flow

Blow regulation valve

Make-up

Certain amount of circulating

water

water is blown by blow

Absorption

regulation valve.

chiller

P

Higher than

cooling water level

	Figure 72.
	Pressure Switch+Solenoid Valve	Solenoid valve
3				Make-up
				water
	Circulation pump is controlled	Absorption
	by pressure switch.
		chiller		Pressure switch
			P
	Figure 73.	Water treatment control panel
	Conductivity Meter+Solenoid Valve			Solenoid valve
4
	PH Meter+Solenoid Valve			Make-up
				water
	Blow is controlled.	Absorption
		chiller	Sensor
			P	Over flow

SUPER ABSORPTION

Examples of Installation

TOKYO INTERNATIONAL FORUM User : Tokyo Heat Supply Co.,ltd

Osaka Dome City User : OSAKA GAS Co.,Ltd. Iwasaki Energy Center

Kitakyusyu Media Dome

Kyoto Station Building

96 97