High pressure combustion air distribution structure for compound heat carrier generator

Abstract

The invention relates to a high pressure combustion air distribution structure for a compound heat carrier generator. The high pressure combustion air distribution structure comprises a combustion chamber head, a combustion chamber shell (12) and a vaporization chamber shell (20); a head shell (1) is inserted into the front end of the combustion chamber shell (12); the vaporization chamber shell (20) is connected to the rear end of the combustion chamber shell (12); a combustion chamber liner II (10) is arranged on the inner peripheral wall of the combustion chamber shell (12); an air casing (11) is formed between the outer peripheral wall of the combustion chamber liner II (10) and the inner peripheral wall of the combustion chamber shell (12); a lens gasket II (14) is embedded in the middle of a connecting end of the combustion chamber shell (12) and the vaporization chamber shell (20) for sealing; an air nozzle (22) is arranged on the lens gasket II (14) and is communicated with the air casing (11); and the air casing (11) is communicated with a combustion chamber (29). The high pressure combustion air distribution structure is reasonable, safe, reliable, long in service life, good in atomizing effect and is more energy-saving and high-efficiency.

Description

Technical field [0001] The invention relates to a composite heat carrier generator, in particular to a high-pressure combustion air distribution structure of the composite heat carrier generator. It belongs to the technical field of oil extraction equipment. Background technique [0002] Injecting saturated steam into oil reservoirs for thermal recovery of heavy oil is one of the methods commonly used in countries all over the world, and has achieved very good oil recovery effects and economic benefits. [0003] Most of the original thermal mining is to inject the high-temperature and high-pressure steam generated by the surface boiler into the downhole oil layer, but this thermal recovery method has many shortcomings, such as large heat loss, high equipment and production costs, low crude oil extraction efficiency, and large environmental pollution, especially The whole set of equipment has poor mobility and is difficult to adapt to the requirements of oil well distribution opera...

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Problems solved by technology

[0003] Most of the original thermal extraction is to inject the high-temperature and high-pressure steam generated by the surface boiler into the downhole oil layer, but this thermal recovery method has many shortcomings, such as large heat loss, high equipment and production costs, low crude oil recovery efficiency, and large environmental pollution. The mobility of the whole set of equipment is poor, and it is difficult to adapt to the requirements of oil well distribution operations

In order to overcome the above-mentioned shortcomings, the Chinese patent application number 200510022594.7 discloses a high-temperature and high-pressure combustion system of a subcritical composite heat carrier generator. Great progress has been made in energy saving, mobility, etc., but this system has the following shortcomings: 1. When the device is running under ultra-high pressure, the head shell is too high due to heat radiation, and cracks are prone to occur. Short service life; 2. The air nozzle of the device is located outside the oil nozzle, so the air channel needs to be sealed with an O-ring to the outside world, and its pressure resistance and reliability are poor; 3. The impact atomization of fuel and air Finished outside the oil nozzle, its atomization effect is poor

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