Oil field steam-drum-type steam injection boiler for producing overheated steam
A technology of superheated steam and steam injection boiler, applied in the field of boiler design and manufacture, can solve the problems of waste of high-quality energy, waste of water resources, unfavorable safe and stable operation of the boiler, etc., so as to reduce the loss of high-grade energy and reduce the waste of water resources. , Improve the effect of steam quality
Inactive Publication Date: 2014-09-10
XI AN JIAOTONG UNIV
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Problems solved by technology
This not only wastes a lot of water resources, but also wastes a lot of high-quality energy
At the same time, the added steam-water separator does not have the function of steam cleaning, which cannot further improve the steam quality, which is not good for the safe and stable operation of the boiler
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[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0024] refer to figure 1 , is an oil field drum type steam injection boiler producing superheated steam according to the present invention, which includes a radiation section 3 arranged in the combustion chamber of the boiler, a convection section 1 and a superheating section 2 arranged in the boiler flue, and is provided with a radiation section 3 The furnace wall 16 in the combustion chamber of the boiler is provided with a blower 7; wherein, the outlet of the water supply pipe 8 is connected to the inlet of the plunger pump 5, the outlet of the plunger pump 5 is connected to the inlet of the convection section 1, and the outlet of the convection section 1 passes through the outlet of the convection section The pipe 9 is connected to the first water inlet of the steam drum 4, and the steam outlet of the steam drum 4 is connected to ...
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The invention belongs to the field of steam injection boilers for oil-field oil extraction and discloses an oil field steam-drum-type steam injection boiler for producing overheated steam. The oil field steam-drum-type steam injection boiler comprises a radiating section arranged in a boiler burning chamber, a convection section and an overheated section, the convection section and the overheated section are arranged in a boiler flue, an air blower is arranged on the boiler wall of the boiler burning chamber provided with the radiating section, an outlet of a water supply pipe is connected with an inlet of a plunger pump, an outlet of the plunger pump is connected with an inlet of the convection section, an outlet of the convection section is connected with a first water inlet of a steam drum, a steam outlet of the steam drum is connected with a steam inlet of the overheated section, a steam outlet of the overheated section is connected with an inlet of a steam injection system, a circulating water outlet of the steam drum is connected with a water inlet of the radiating section through a circulating water pump, and a steam-water mixture outlet of the radiating section is connected with a second water inlet of the steam drum. The oil field steam-drum-type steam injection boiler can meet needs on thermal extraction of oil-field heavy oil and super-heavy oil, discharging of high-quality hot water is reduced, thermal efficiency of a system is improved, and water resources are saved.
Description
【Technical field】 [0001] The invention relates to the field of design and manufacture of boilers, in particular to an oil field drum type steam injection boiler for producing superheated steam, which is suitable for the steam injection development process of heavy oil or super heavy oil. 【Background technique】 [0002] Steam-Assisted Gravity Drainage (SAGD) technology is a cutting-edge technology for the development of super-heavy oil. The key to SAGD steam injection technology is the need for high-dryness steam. The dryness of the steam produced by the currently used once-through boiler is only 75% to 80%. There are also once-through steam injection boilers that generate superheated steam by adding a steam-water separator and a superheating section. But the steam separator will discharge 20% to 25% of the high temperature separated water. This not only wastes a lot of water resources, but also a lot of high-quality energy. At the same time, the added steam-water separator...
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IPC IPC(8): F22G1/00E21B43/24
Inventor 王树众朱佳斌杨建平罗明肖仲正吕明明景泽锋
Owner XI AN JIAOTONG UNIV