instagram: dzneftemash Republic of Bashkortostan, Ufa, ul. Komsomolskaya, 15. Russian version
 +7 (347) 285-51-55 +7 (34768) 3-11-19

FURNACE N-402

36-1.jpg

GENERAL DATA

The furnace designed for heating and partial evaporation of diesel fraction coming from column cubeТ-401, with subsequent return into T-401 column as a “hot stream”.

features

Operation conditions should correspond to U, HL by GOST 15150-69.

Placement category –1 by GOST15150-69.

Maximal block installation area seismic activity – 6 points by SNiP 11-7-81.

The furnace has 2 coils:

1)    Coil №1 works with diesel fraction;

2)    Coil №2 works with fuel gas.

COMMON SPECIFICATIONS

Common specifications presented in tables below.

Coil 1 specification list.

Parameter

Value

 Nominal heat release, MW

1.056

 Diesel fraction related productivity, kg/hr 

22285

 Temperature, °С:

 - at furnace input, within;

 - at furnace output, max;

 - wall temperature, designed;

 - coil walls, min allowable

+304

+328

+440

minus 47

Coil pressure, MPa (kgf/cm2):

 - process; 

 - working, max;

 - designed;

 - hydro tested.

0.5…0.6 (5.0…6.0)

0.77 (7.7)

0.8 (8.0)

1.47 (14.7)

 Heated medium parameters:

 - title;

 - hazard class;

 - explosion risk;

 - fire risk;

 - explosion hazard zone class.

diesel fraction

4 by GOST 12.1.007-76

yes

yes

2 by GOST Р 51330.9-99

Corrosion allowance, mm

2

 Radiant tube heating surface area, m2

40.6

 Service life, years, min:

 - coil;

- furnace.

10

15

 Furnace mass, kg max:

 - in idle state;

 - during hydro test.

23000

25130



Coil 2 specification list.

Parameter

Value

 Nominal heat release, MW

1.056

 Fuel gas related productivity, m3/hr 

61±15%

 Temperature, °С:

 - at furnace input, within;

 - wall temperature, designed;

 - coil walls, min allowable

+40…+50

+70

minus 47

Coil pressure, MPa (kgf/cm2) :

 - process

0.01…0.1 (0.1…1.0)

 Heated medium parameters

 - title;

 - hazard class;

 - explosion risk;

 - fire risk;

 - explosion hazard zone class.

fuel gas

4 by GOST 12.1.007-76

yes

yes

2 by GOST Р 51330.9-99

Corrosion allowance, mm

2

 Service life, years, min:

 - coil;

- furnace.

10

15

 Furnace mass, kg max:

 - in idle state;

 - during hydro test.

23000

25130


n-402.jpg

N-402 basic assembly units:

1)   radiant section;

2)   convection section;

3)   regulating gate;

4)   fume stack;

5)   platform.

N-402 general drawing.

Chokes and Flanges Table

Ref

Designation

Qty

Nominal Pressure, MPa (kgf/cm2)

DN, mm

A1

Product inlet

1

1.6 (16)

100

Б1

Product outlet

1

150

В1

Drainage

1

80

Г1

Burner fuel gas inlet

1

32

Д1

Primer installation choke

1

15

Е1

Gas or nitrogen input

1

80

Ж1, 2, 3

Underpressure measurement

3

-

15

(M20x1.5)

И1,2

Heat converter installation choke

2

К1

Fume gas analyzer installation choke

1

M16

Л1

Photosensor installation choke

1

80

М1, 2

Exhaust window

2

500

Н1

Inspection hole

3

150x220

О1

Bottom inspection hole

1

100

П1

Manhole hatch

1

450x540

Р1

Observation hole

1

400

С1

Sanitation hole

1

200