Continuous Blowdown System
Continuous Blowdown System
Continuous Blowdown System
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<strong>Continuous</strong> <strong>Blowdown</strong> <strong>System</strong><br />
Main Features :<br />
Designed for automatic control of TDS (total disolved solids) level of the boiler. Due to automatic<br />
blowdown YBS 10 provides energy saving. On request,for high energy saving,YBS 10<br />
equipped with plate heat exchanger and circulation pump for HEAT RECOVERY SYSTEM.<br />
Please consult to manufacturer of plant boiler for TDS level adjustment.<br />
1 2 3<br />
4 5<br />
Vertical Multistage Pumps<br />
Plate Heat Exchanger<br />
Horizontal Multistage Pumps<br />
6 7<br />
No. MATERIAL Max.Temperature Max.Pressure<br />
1 Conductivity sensor 200 o C 17 bar<br />
2 Transmitter<br />
3 Controller<br />
4 Control valve 400 o C 25 bar<br />
(motor actuated or pneumatic) 150 o C 40 bar<br />
5 Control panel<br />
6 *Plate heat exchanger 150 o C<br />
7 *Circulation pump<br />
* These equipments required for HEAT RECOVERY SYSTEM
CONTINUOUS BLOWDOWN SYSTEM<br />
STEAM<br />
MAKE-UP<br />
WATER<br />
CONDENSATE<br />
TANK<br />
BOILER<br />
BLOWDOWN AMOUNT RELATED HEAT LOSS<br />
Feedwater conductivity Blow amount supported to feedwater <strong>Blowdown</strong> amount Heat loss<br />
(25 0 c) % kg/h year/kg<br />
100 2 102 11.341<br />
200 4 208 23.127<br />
400 8 435 48.367<br />
800 16 952 105.852<br />
1000 20 1250 138.986<br />
1500 30 2143 238.278<br />
2000 40 3333 370.592<br />
Process pressure : 10 bar/Capacity : 5000 kg/h<br />
Working hours : 16 hr/day/Working days : 340 days/year<br />
Blow amount supported to feedwater %<br />
10<br />
8<br />
6<br />
4<br />
2<br />
%<br />
µs/cm (25 o C)<br />
100 200 400 100 200 400<br />
Feedwater conductivity Feedwater conductivity<br />
Heat loss<br />
48.4<br />
23.2<br />
11.3<br />
µs/cm (25 o C)
INTERMITTENT BLOWDOWN VALVE (With Timer)<br />
<br />
Main Features<br />
Besides continuous blowdown intermittent<br />
blowdown contributes to boiler safety<br />
and trouble-free operation. Intermittent<br />
blowdown ensures that precipitated solids<br />
and sludge are cleared from the boiler so<br />
that they cannot accumulate in the bottom<br />
of the boiler. A programmer controlled<br />
blowdown system with rapid-action intermittent<br />
blowdown valve is used for this<br />
purpose.<br />
DBV 10 Contains :<br />
1 - Ball valve (stainless steel)<br />
2 - Cyling timer<br />
3 - Pneumatic actuator<br />
4 - Solenoid valve<br />
5 - Limit switch<br />
PRESSURE (PSI)<br />
PRESSURE (bar)<br />
14<br />
TEMPERATURE o F<br />
210<br />
116.5<br />
Dimensions : mm<br />
MATERIAL Stainless Steel Carbon Steel<br />
Body ASTM A351-CF8M ASTM A3216-WC8<br />
346.5<br />
Cap ASTM A351-CF8M ASTM A3216-WC8<br />
128.5<br />
Ball ASTM A351-CF8M ASTM A3216-WC8<br />
Steam ASTM A276-316 ASTM A276-316<br />
O150<br />
3O87<br />
140<br />
18<br />
Ball seat RTFE RTFE<br />
Gasket RTFE RTFE<br />
Thrust Washer RTFE RTFE<br />
O 80<br />
46.5<br />
50.5<br />
MATERIAL Stainless Steel Carbon Steel<br />
81.5<br />
O-Ring Viton Viton<br />
Handle ASTM A351-CF8 ASTM A351-CF8<br />
84<br />
Disc spring 50CrV4 50CrV4<br />
152.5<br />
Internal AISI 304 AISI 304<br />
Bolt AISI 304 AISI 304<br />
120<br />
Nut AISI 304 AISI 304<br />
Steam Packing PTFE PTFE<br />
18
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