MOBILE STEAM GENERATOR Russian patent published in 2023 - IPC F22B1/00 F23C1/08 B60H1/22 

FIELD: oil and gas industry.

SUBSTANCE: invention can be used in the oil and gas industries for dewaxing the bottom-hole zone of wells, pipelines, tanks, fittings and other oilfield equipment with saturated high-pressure steam. The mobile steam generator contains a platform on the chassis of a car, on which the body is mounted, a steam boiler (5) with a spark plug (44) for fuel ignition, a water tank and tanks (8) with diesel fuel. There is a water pump for pumping water from the tank into the steam boiler (5) and a fuel pump (11) for supplying fuel from the tanks (8) to the liquid fuel nozzle (19) of the steam boiler furnace. There is also a fan (9) for pressurizing air into the furnace, strapping pipelines, a transmission connecting both pumps, a fan with a power take-off box, control and measuring instruments (38) and an exhaust pipe (6). The steam generator additionally contains a gas tank (4) with liquid propane. The furnace of the steam boiler (5) contains a gas burner (22). The gas tank (4) is made with two outlet fittings (25) and (30). The fitting (25) is connected to the upper part of the gas tank (4) for the discharge of the propane gas fraction into the gas burner (22). The second fitting (30) is connected to the lower part of the gas tank (4) to drain the liquid propane fraction and is connected to the liquid fuel supply pipeline to the liquid fuel nozzle (19). The pipeline is equipped with a check valve (36) and connected to a three-way valve (34) for switching from diesel fuel to the liquid propane fraction and back. The body of the steam boiler (5) is made with an air jacket (13) communicating with the furnace and the air pressurization pipeline into the furnace. A safety valve (18) is installed at the outlet of the heat exchanger (15) of the steam boiler (5) in front of the exhaust pipe (6).

EFFECT: increase in the reliability of operation of a mobile steam generator.

1 cl, 2 dwg