A steam generator that reduces the thermal and hydraulic unevenness in the steam generator, improves the filling capacity of the steam generator with heat exchange tubes, organizes an economizer portion of the heat exchange surface in the steam generator, and reduces the concentration of corrosive impurities in the weld zone of the primary circuit to the horizontal shell. To solve the task in such steam generator containing the horizontal shell and other component, the heat exchange tubes are located in vertical planes, and the inlet and outlet manifolds of the primary circuit are arranged horizontally. The steam generator can also be equipped with at least two output manifolds of the primary circuit furthers, the feed water dispenser can be located below the heat exchange tubes of the steam generator.

A steam generator that reduces the thermal and hydraulic unevenness in the steam generator, improves the filling capacity of the steam generator with heat exchange tubes, organizes an economizer portion of the heat exchange surface in the steam generator, and reduces the concentration of corrosive impurities in the weld zone of the primary circuit to the horizontal shell. To solve the task in such steam generator containing the horizontal shell and other component, the heat exchange tubes are located in vertical planes, and the inlet and outlet manifolds of the primary circuit are arranged horizontally. The steam generator can also be equipped with at least two output manifolds of the primary circuit furthers, the feed water dispenser can be located below the heat exchange tubes of the steam generator.

A once-through steam generator for use at an oilfield operation site includes: a control module having an enclosure including controls for operating the steam generator, a radiant module including a radiant chamber, and a convective module including an economizer heat exchanger. The enclosure is erected prior to transportation to the operation site.

A once-through steam generator for use at an oilfield operation site includes: a control module having an enclosure including controls for operating the steam generator, a radiant module including a radiant chamber, and a convective module including an economizer heat exchanger. The enclosure is erected prior to transportation to the operation site.

There is provided a steam generating apparatus including: a heater including a lower linear section and an upper linear section which are spaced apart from each other and have a predetermined length, and a curved section connecting the lower linear section and the upper linear section; a heating module including: a heater accommodation pipe which has a same shape as the heater and encloses an outside of the heater; a cover plate which is attached to both open ends of the heater accommodation pipe; a horizontal partition which is disposed between a lower linear section and an upper linear section of the heater accommodation pipe; and a heat dissipation pin which protrudes from at least part of the heater accommodation pipe; and a case which is configured to enclose the heating module and is secured to the cover plate.

There is provided a steam generating apparatus including: a heater including a lower linear section and an upper linear section which are spaced apart from each other and have a predetermined length, and a curved section connecting the lower linear section and the upper linear section; a heating module including: a heater accommodation pipe which has a same shape as the heater and encloses an outside of the heater; a cover plate which is attached to both open ends of the heater accommodation pipe; a horizontal partition which is disposed between a lower linear section and an upper linear section of the heater accommodation pipe; and a heat dissipation pin which protrudes from at least part of the heater accommodation pipe; and a case which is configured to enclose the heating module and is secured to the cover plate.

A steam generator that reduces the thermal and hydraulic unevenness in the steam generator, improves the filling capacity of the steam generator with heat exchange tubes, organizes an economizer portion of the heat exchange surface in the steam generator, and reduces the concentration of corrosive impurities in the weld zone of the primary circuit to the horizontal shell. To solve the task in such steam generator containing the horizontal shell and other component, the heat exchange tubes are located in vertical planes, and the inlet and outlet manifolds of the primary circuit are arranged horizontally. The steam generator can also be equipped with at least two output manifolds of the primary circuit furthers, the feed water dispenser can be located below the heat exchange tubes of the steam generator.

A steam generator that reduces the thermal and hydraulic unevenness in the steam generator, improves the filling capacity of the steam generator with heat exchange tubes, organizes an economizer portion of the heat exchange surface in the steam generator, and reduces the concentration of corrosive impurities in the weld zone of the primary circuit to the horizontal shell. To solve the task in such steam generator containing the horizontal shell and other component, the heat exchange tubes are located in vertical planes, and the inlet and outlet manifolds of the primary circuit are arranged horizontally. The steam generator can also be equipped with at least two output manifolds of the primary circuit furthers, the feed water dispenser can be located below the heat exchange tubes of the steam generator.