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A kind of preparation method of ceramic matrix composite material pulse detonation engine combustion chamber

A composite material, pulse detonation technology, applied in combustion methods, combustion chambers, combustion equipment, etc., can solve the problems of molding, difficult combustion chamber shell and spiral body, and achieve the effect of improving temperature resistance and ensuring dimensional accuracy.

Active Publication Date: 2022-07-12
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a preparation method of a ceramic matrix composite material pulse detonation engine to solve the difficulty in the prior art when using a ceramic matrix composite material to prepare a pulse detonation engine. and the problem of direct molding of helicoids

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  • A kind of preparation method of ceramic matrix composite material pulse detonation engine combustion chamber
  • A kind of preparation method of ceramic matrix composite material pulse detonation engine combustion chamber
  • A kind of preparation method of ceramic matrix composite material pulse detonation engine combustion chamber

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Embodiment 1

[0047] A ceramic matrix composite material pulse detonation engine combustion chamber, the preparation method of which comprises the following steps:

[0048] (1) Process split

[0049] Taking the cylinder inner circle of the combustion chamber shell as the benchmark, stretch along the axial direction of the cylinder body, and divide the spiral body structure in the design model into separate solid models, that is, the three-dimensional models of the combustion chamber shell 11 and the spiral body 10 are obtained;

[0050] (2) Mold preparation

[0051] Using high-purity graphite as raw material, the molds are designed and prepared according to the structure and shape and size of the three-dimensional models of the combustion chamber shell 11 and the spiral body 10. The combustion chamber shell mold includes an inner film 1, an outer mold, a flange 3 and a connector 4. The outer mold is composed of two outer mold segments 2 with connecting holes. The spiral body mold 6 is a cy...

Embodiment 2

[0061] A ceramic matrix composite material pulse detonation engine combustion chamber, the preparation method of which comprises the following steps:

[0062] (1) Process split

[0063] Taking the cylinder inner circle of the combustion chamber shell 11 as the benchmark, and stretching along the axial direction of the cylinder, the structure of the spiral body 10 in the design model is divided into separate solid models, that is, the three-dimensional model of the combustion chamber shell 11 and the spiral body 10 is obtained. ;

[0064] (2) Mold preparation

[0065] Using high-purity graphite as raw material, the molds are designed and prepared according to the structure and shape and size of the three-dimensional models of the combustion chamber shell 11 and the spiral body 10. The combustion chamber shell mold includes an inner film 1, an outer mold, a flange 3 and a connector 4. The outer mold is composed of two outer mold segments 2 with connecting holes. The spiral bod...

Embodiment 3

[0075] A ceramic matrix composite material pulse detonation engine combustion chamber, the preparation method of which comprises the following steps:

[0076] (1) Process split

[0077] Taking the cylinder inner circle of the combustion chamber shell 11 as the benchmark, stretching along the cylinder axial direction, the spiral structure in the design model is divided into separate solid models, that is, the three-dimensional models of the combustion chamber shell 11 and the spiral body 10 are obtained;

[0078] (2) Mold preparation

[0079] Using high-purity graphite as raw material, the molds are designed and prepared according to the structure and shape and size of the three-dimensional models of the combustion chamber shell 11 and the spiral body 10. The combustion chamber shell mold includes an inner film 1, an outer mold, a flange 3 and a connector 4. The outer mold is composed of two outer mold segments 2 with connecting holes. The spiral body mold 6 is a cylindrical s...

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Abstract

The invention discloses a preparation method of a ceramic matrix composite material pulse detonation engine combustion chamber. The base layer is processed to the design size to obtain the ceramic matrix composite combustion chamber shell and the spiral body; the spiral body is inserted into the combustion chamber shell according to the design requirements, through holes are prepared at the contact parts, and then the pins are inserted into the through holes for homogenous connection. , reprocessed to the design size, and after the damage was repaired, the ceramic matrix composite material pulse detonation engine combustion chamber was obtained. The temperature resistance of the pulse detonation engine combustion chamber of the ceramic matrix composite material prepared by the invention is greatly improved, and the weight thereof can be significantly reduced at the same time.

Description

technical field [0001] The invention relates to the technical field of detonation engine preparation, in particular to a preparation method of a ceramic matrix composite material pulse detonation engine combustion chamber. Background technique [0002] The pulse detonation cycle has the characteristics of high cycle efficiency and self-supercharging in the combustion process. The pulse detonation engine is a new type of power plant that adopts the pulse detonation cycle, which uses the pulse detonation combustion chamber to replace the isobaric combustion chamber (including the main combustion chamber and the afterburner) in the traditional turbine engine, thereby transforming the traditional The isobaric cycle in a turbine engine is transformed into a pulsed detonation cycle, which can greatly improve the performance level of conventional turbine engines. [0003] In order to enhance the turbulence of the combustion field inside the pulse detonation combustion chamber and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/573C04B35/577C04B35/622C04B35/80C04B35/628F02K7/02F23R3/00
CPCC04B35/573C04B35/622C04B35/80C04B35/62873C04B35/62884C04B35/62868F02K7/02F23R3/007C04B2235/614C04B2235/77C04B2235/9607C04B2235/5248C04B2235/5244C04B2235/5256Y02T50/60
Inventor 刘小冲刘持栋付志强穆阳阳成来飞
Owner NORTHWESTERN POLYTECHNICAL UNIV