.jpg)
PurposeThe PTB-5-40E furnace is designed for heating of oils and oil emulsions at oil-fields treatment and transportation. In com-parison to the PTB-10À, this furnace is of lower capacity that allows economically effective operation at small oil-fields. Product is heated directly. The furnace has improved design and is a modification of the PTB 5-40A model.
Technical Data
| Heat power, MW (Gcal/hour) | 3,5–7,3 (3,0–6,3) |
| Heated product capacity, kg/s (t/hour), within | 34,7–69,5 (125–250) |
| Medium to be heated | oil, emulsified oil with hydrogen sulfide concentration in oil-well gas up to 0,1% volume |
| Inlet temperature,K (°Ñ), minimum |
278(5) |
| Outlet temperature, K(°Ñ), maximum |
363 (90) |
| Product coil pressure, MPa (kgf/cm2), max.: | 4,0 (40) |
| Fuel: | Natural or oil-well gas, dried and stripped, with hydrogen sulfide concentration of max. 0,002% mass., from independent distribution point |
| Fuel gas pressure, within: |
|
| at furnace inlet, MPa (kgf/cm2): |
0,1-0,3 (1-3) |
| at combustion chamber, MPa (kgf/cm2): |
0,005-0,05 (0,05-0,5) |
| Fuel gas consumption m3/hour, max. (nm3/hour) |
0,22 (800) |
| Air pressure in combustion chamber, Pa, max. Ïà |
3000 |
| Gas pressure prior to ignition burner, MPa (kgf/cm2) |
0,06–0,18 (0,6–1,8) |
| Gas consumption at ignition burners, m3/hour, max. (nm3/hour) |
0,0015 (6) |
| Number of combustion chambers |
2 |
| Efficiency, % |
80 |
| Draft system |
blower ÂÐ-6-28-10 |
| Blower motor drive 4A200L4: number |
1 |
| Capacity, kW |
45 |
| supply voltage,V |
380+10% |
| Frequency,C-1 (rpm) |
 |
| Mass, tons |
29,3 |
| Dimensions (length x width x height, assembled), m |
9,75 × 3,52 × 8 |
The PTB-5-40E furnace has the following features in comparison to the PTB-5-40A furnace:
- It engages electric control system implementing microprocessor automation that allows to use it within industrial control of the whole plant. It does not need compressor unit to be used to maintain pressure in pneumatic line, since all executive valve devices are electric-driven.
- Automation system also provides:
– gas concentration control in heat-exchange chamber;
– air-gas ratio control, to provide complete combustion of fuel gas. - There are coils in heat exchange chamber to heat fuel gas to +65°Ñ in winter season.
- Instead of distribution point in the furnace basement module there is gas regulating point of cabinet type with gas heating.
