Vehicle-mounted high-pressure DC steam injection boiler system with three-pass flue gas

Abstract

The invention relates to the field of the boiler design and manufacture, and discloses a vehicle-mounted high-pressure DC steam injection boiler system with three-pass flue gas, which is applicable to the field of thermal exploitation of heavy oil in the oil industry. The boiler system comprises a trailer, a sleeve type water-water heat exchanger, a convection section, a high-pressure water supply pump, a combustion fan, a burner, a radiation section, a steam-water separator, an air preheater and a chimney, wherein the high-pressure water supply pump, the combustion fan, the burner, the radiation section, the steam-water separator, the air preheater and the chimney are arranged on the trailer in sequence along the length direction of the trailer, the cross section of the radiation sectionis square, the sleeve type water-water heat exchanger is arranged outside the lower side face of the front half section of the radiation section, the convection section comprises a left rectangular flue gas channel, a right rectangular flue gas channel, a lower rectangular flue gas channel and convection tube bundles respectively arranged in the three rectangular flue gas channels, and the left rectangular flue gas channel, the right rectangular flue gas channel and the lower rectangular flue gas channel are correspondingly arranged outside the left side face, the right side face and the lower side face of the rear half section of the radiation section.

Description

technical field [0001] The invention relates to the field of design and manufacture of boilers, in particular to a vehicle-mounted flue gas three-pass high-pressure direct-flow steam injection boiler system, which is suitable for the field of heavy oil thermal recovery in the petroleum industry. Background technique [0002] At present, the heavy oil production method is mainly steam injection thermal oil recovery, the core equipment of which is the high-pressure once-through steam injection boiler system, through the steam injection pressure to overcome the resistance along the transportation process and the gravity pressure difference, and use the steam injection itself to carry The heat of the crude oil is heated to reduce the viscosity of the crude oil, which is convenient for long-distance transportation in the vertical direction, thereby obtaining better economic and social benefits. [0003] With the advancement of heavy oil production technology and the diversity of ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a compact vehicle-mounted flue gas three-pass high-pressure direct-flow steam injection boiler system through reasonable optimization design, which can solve the defects of the existing vehicle-mounted high-pressure direct-flow steam injection boilers such as small evaporation and low combustion efficiency

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