Non - IBR Four Pass Reverse Flow Steam Boiler


The uni-steam 4 pass reverse flow Steam Boiler is coil type, oil fired boiler based on reverse flow design.
The vertical boiler has a airtight membrane wall helical coil giving ample residence time for complete combustion. In the First Pass the Flue gases flow axially downwards. On reaching the water cooled bottom, the flue gases take a reverse turn Upwards, making in the second pass. Thus two passes in the radiant zone ensures complete combustion and high rate of heat flux. In the Third pass the flue gases flow downward between the outer side of coiler and inner shell. The Fourth pass takes place through the independent smoke tube type Economiser. These four passes result in maximum combustion and thermal efficiency. 

The uni-steam is a fully automatic and safe for unattended operation. The normal operation of the steam generator is governed by a electronic sequence controller, which in the event of abnormal operating condition sound an audio visual alarm and trip the system to stop. Ones the fault is cleared restart the unit. The all instrument of safety interlocks, indicators and alarm are mounted in control panel board.

Reverse Flow Steam Boiler

Technical Specification of Non-IBR Uni-Steam Reverse Flow System

Model

Unit

US-100

US-200

US-300

US-400

US-500

US-600

Rated steam out put at & from 30o c feed water

KG/HR.

100

200

300

400

500

600

Steam pressure

KG/CM2

15

15

15

15

15

15

Max Steam Temperature

197

197

197

197

197

197

Efficiency on GCV

%

86 1

86 1

86 1

86 1

86 1

86 1

Fuel Oil Consumption

LDO.KG/HR.

6.7

13.5

20.3

27.2

33.7

40.8

Connected electric load

KW

2

2

2

2

2

2

Burner modulation

---

ON-OFF

ON-OFF

ON-OFF

ON-OFF

ON-OFF

ON-OFF

Electric supply

---

415V + 550Hz 3Ph – 4 Wire

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