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DIRECT HEATING FURNACE PPN-3

35-1.jpg

PPN-3 heat exchange chamber general layout.

GENERAL DATA

Modular tube furnace PPN-3 intended for heating of oil and oil emulsions during their infield transportation and treatment.

PPN-3 features

Climatic modification – U, HL by GOST 15150-69.

Placement category–1 by GOST15150-69.

Common specifications

Parameter

Value

 Rated heat capacity, MW

3.0

 Oil emulsion related productivity, t/hr (kg/sec), within

62.5…125

(17.4…34.7)

 Product temperature, °С:

 - at furnace input, min

- at furnace output, max.

 

+5

+90

 Efficiency factor,% , max

80

 Product coil pressure, MPa (kgf/cm2):

 - working, max

 - estimated

 - hydro tested

 

6.3 (63)

6.3 (63)

8.2 (82)

 Fuel parameters:

 - title

 - hydrogen sulphide content (H2S), %  mass. max

- furnace input pressure, MPa (kgf/m2), max

 - pressure before combustion chamber, MPa, within

 - air pressure inside combustion chamber, kPa

 - gas pressure before primer burner, MPa, within

 - primer burner fuel gas consumption, nm3/hr (nm3/sec)

- fuel gas consumption, nm3/hr

 - air consumption, nm3/hr

Natural / associated oil gas

0.002

0.1…0.3 (1.0…3.0)

0.005…0.05

3.0

0.06…0.18

3.0 (0.00085)

400

6000

 Fuel parameters (diesel fuel, oil):

- lower combustion heat,  kcal/kg

 - hydrogen sulphide content (H2S), mass fraction, % max

 - pressure before nozzle, MPa (kgf/cm2), max

- fuel consumption, kg/hr,

 

6800

0.002

 

4.0 (40.0)

800

 Number of combustion chambers

2

 Mass, kg, max:

 - furnace (in idle state);

 - heat exchange chamber;

- furnace foundation block;

- ventilation set block

 

24600

15000

4000

1500

Service life, years, min

10

Average overhaul life, years

3.5

ppn-3.jpg

PPN-3 basic assembly units:

1)   furnace foundation block;

2)   heat exchange chamber;

3)   ventilator set block

4)   fume stack

PPN-3 general drawing.

Chokes and Flanges Table

Ref

Designation

Qty

Nominal
Pressure, MPa (kgf/cm2)

DN, mm

A1

Oil inlet

1

4.0 (40)

200

Б1

Oil outlet

1

4.0 (40)

200

В1,2

Firefighting (nitrogen) choke

2

1.6 (16)

50

Г1,2

Fume gasoutlet

2

200x1000

Д1

Gas inlet from GRP

1

0.6 (6)

50

Ж1,2

Safety valve

2

-

700

З1,2

Heat exchange chamber drainage

2

0.1 (1)

25

И1,2

Observation window

2

-

80

К1,2

Coil purge choke

2

4.0 (40)

15 (Rc 1/2)

Л1,2

Coil medium temperature control

4

-

20 (M20x1.5)

М1,2

Drainage of product lines

2

4.0 (40)

50

Н1,2

Fume gas temperature control

2

-

15 (M20x1.5)

П1

Heat exchange chamber air sampling

1

-

50