Direct heater PPN-3 (Zh)

The automated tubular block heater is designed for heating oil emulsions and oil at processing facilities with daily performance of 1500-3000 tons. The principle of the furnace operation is to heat the oil emulsion passing through the coil pipes due to the heat released by the combustion products and entering to the heat exchange chamber. Heat exchange process take place in chamber between the products of gas fuel combustion contacting the outer surfaces of the coil tubes and the heated fluid moving inside.

The furnace is controlled by a microprocessor automation system SA-PPN.M1-1B built according to the block-functional principle and consisting of control and signaling devices placed directly on the technological part of the furnace as well as in the room of the hardware block.

The hardware block is an insulated room which includes: Control panel, power rack, room heater and lighting.

Control system SA-PPN.M1-1B is performed on the basis of industrial controller  Direct Logic type DL-260 (controller of another manufacturer can be installed optionally).

For  communication with the top-level control the RS-232 or RS-485 interface  with MODBUS RTU protocol is used which makes easy to integrate the furnace into the process control system of the site, and also to organize remote monitoring and control of its parameters.

If necessary, communication can be organized using any standard industrial protocol.

All this provides increased safety and reliability of the furnace.


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parameter

value

Net heat capacity of the furnace, mW (gcal / h)

3.0 (2.6)

Oil emulsion performance, (t/h), within

62.5-125

Temperature of the oil emulsion at the inlet to the furnace (°C), min

5

Temperature of the oil emulsion at the outnlet to the furnace (°C), max

90

Pressure inside the coil, MPa, max

4.0

Fuel type

Natural or associated gas, liquid fuel (oil, mazut, diesel fuel)

Fuel gas pressure, MPa, within:

- at the inlet to the heater (after pressure reducer)

- at the combustion chamber

 

0.1-0.3

0.005-0.05

Fuel gas consumption, sm3/h

405

air consumption, sm3/h

6 000

Number of combustion chambers, pcs

2

Air pressure in the combustion chamber, MPa

0.003

Gas pressure at the pilot burner, MPa

0.06-0.18

Gas consumption for pilot burner, sm3/h

1.5

Fuel oil characteristics:

- density, kg/m³, max

- viscosity, m²/sec (cSt)

- hydrogen sulphide H2S, mole %, not max 2

- carbon dioxide, mole %, max 2

- operating temperature, (ºC), max

- inlet pressure at the heater, MPa, within

- pressure before burner, MPa, max

- fuel oil consumption, kg/h, within

 

887

20

0.01

1.0

50

4,0…6,2

3.5

200

Heated fluid - oil, oil emulsion, formation water, gas with content of, mole %, max:

- hydrogen sulphide H2S

- carbon dioxide CO2


0.01

1.0

Efficiency factor, % min

80

Blowing device

Fan V-Ts6-28-10

Power of the fan motor, kW

45

Weight, kg, max:

- heater

including:

- heat exchange chamber

- heater base block

- fan assembly

 

21600

 

9800

9060

1500

Overall dimensions (length x width x height), mm, max

- heater

- heat exchange chamber

- heater base block

- fan assembly


7720х4502х7960

4005х3250х3765

4000х3250х2650

1535х2025х2175

Reliability indicators:

- average life before overhaul, years

- average service life, years


3.5

10

 





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