High-temperature high-pressure combustion structure of pure oxygen combined heat carrier generator

Abstract

The invention relates to a high-temperature high-pressure combustion structure of a pure oxygen combined heat carrier generator. The high-temperature high-pressure combustion structure comprises a generator fuel-pure oxygen combined supply and ignition structural part (1), a strength retainer shell (3), a main combustion chamber (4), an inflammable bin (5), a mix connector (6), a main gasification shell (7), and a gasification zone heat-resisting layer (8). The main gasification shell (7) is disposed behind the strength retainer shell (3). The strength retainer shell (3) is fixedly connected with the main gasification shell (7) through the mix connector (6). The inner wall of the strength retainer shell (3) is provided with the main combustion chamber (4). The inflammable bin (5) is formed inside the main combustion chamber (4). The gasification zone heat-resisting layer (8) is disposed inside the main gasification shell (7). The high-temperature high-pressure combustion structure has the advantages that operating pressure can meet the requirement for operational combustion reliability under the subcritical pressure when combustion temperature exceeds 3000 DEG C.

Description

Technical field [0001] The invention relates to a pure oxygen composite heat carrier generator, in particular to a high temperature and high pressure combustion structure of a pure oxygen composite heat carrier generator. It belongs to the technical field of oil extraction equipment. Background technique [0002] Injecting carbon dioxide, nitrogen, and water vapor into the oil layer has already developed technologies for increasing crude oil production and enhancing oil recovery in oil fields, and all have achieved certain oil recovery effects and economic benefits. The composite heat carrier produced by the combustion of high-pressure air and high-pressure fuel is injected The oil layer has a more significant effect of improving oil recovery and single well productivity. [0003] The pure oxygen composite heat carrier generator uses an oxygen enricher to generate oxygen, pressurizes pure oxygen and hermetically burns high-pressure natural gas to generate a composite heat carrier ...

AI Technical Summary

Problems solved by technology

[0006] 1. The main gasification chamber at the rear end is connected to the main combustion chamber at the front end. The conventional connection ensures the tightness of the seal, but cannot ensure the mixing and high temperature resistance requirements;

[0007] 2. The main combustion chamber at the front end is a combined structure, and the combustion at a temperature higher than 3000°C during pure oxygen combustion will ablate the combustion chamber in a short period of time, which cannot achieve continuous operation to meet the equipment requirements;

[0008] 3. The composite heat carrier in the rear-end main gasification chamber must not only bear the operating pressure, but also ensure the high temperature exceeding the temperature of the heat carrier by 350°C. It is difficult to guarantee the strength and durability;

[0010] 5. The supply of the front end of the main combustion chamber and the general structure of the ignition structure will cause the high-temperature heat flow in the combustion to cause the inner wall of the combustion chamber to be ablated by cutting fluid, which will affect the service life of the main combustion chamber;

[0011] 6. The mixing of pure oxygen and fuel before combustion will cause rapid ablation of the fuel nozzle and the supply of the front end of the main combustion chamber and the general structure of the ignition structural parts, affecting the service life

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