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Flame tube head

A flame cylinder head, first-level technology, applied in the direction of combustion method, combustion chamber, combustion equipment, etc., to achieve the effect of aerodynamic swirl atomization and head tissue combustion performance, simple air film cooling structure, and improved rigidity

Inactive Publication Date: 2020-12-08
AECC SICHUAN GAS TURBINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The small-flow engine has a compact structure and a small space, requiring small components and high precision. The pursuit of easy structure realization, mature technology and low cost makes it difficult for conventional two-stage vane swirlers to meet their comprehensive requirements.

Method used

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Embodiment Construction

[0030] Embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings.

[0031] Embodiments of the present disclosure are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. The present disclosure can also be implemented or applied through different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present disclosure, a...

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Abstract

The invention belongs to the field of aero-engines, particularly relates to the technical field of small turbojet / turbofan engines, and particularly relates to a flame tube head which comprises a swirler. The swirler comprise a primary swirler and a secondary swirler. The primary swirler comprises a nozzle mounting port, a primary gas inlet, an oil-gas mixing ring cavity and a primary venturi tube. The secondary swirler comprises a first mounting port, a secondary air inlet and a secondary venturi tube. The secondary swirler and the primary swirler are fixedly mounted through the first mounting port. According to the flame tube head, head parts form an integral connecting structure, so that the rigidity of the integral structure is enhanced, and the working stability is ensured; a two-stage radial reverse rotational flow hole air inlet manner is adopted, so that the device is suitable for a small-flow air inlet use environment, and the process manufacturing difficulty and cost are greatly reduced while pneumatic rotational flow atomization and head organization combustion performance are achieved; and due to space limitation, an impact cooling and air film cooling structure is adopted in cooling design.

Description

technical field [0001] The invention belongs to the field of aero-engines, in particular to the technical field of small turbojet / turbofan engines, in particular to a flame cylinder head. Background technique [0002] Aeroengines have developed from the earliest piston engines to the current gas turbofan engines. With the advancement of technology, the combustion chambers of aeroengines are developing towards high temperature and high performance. Chamber, annular combustion chamber developed to the current mainstream short annular combustion chamber. [0003] The flame tube is an important part of the main combustion chamber of an aero-engine. It undertakes the function of organizing combustion. It is generally composed of three parts: the head of the flame tube, the outer ring tube The guidance and diversion of the incoming flow from the compressor promotes the mixing of oil and gas, and at the same time provides a stable combustion zone. It is generally composed of a cap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23R3/56F23R3/42F23R3/28F23R3/12
CPCF23R3/12F23R3/283F23R3/286F23R3/42F23R3/56
Inventor 袁昌波何鹏曾宇晖时远赵弦邓远灏郭凯黄阿勇魏豪
Owner AECC SICHUAN GAS TURBINE RES INST
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