Micro-space combustion test measuring table based on modular design

Abstract

The invention provides a micro-space combustion test measuring table based on a modular design. The micro-space combustion test measuring table based on the modular design is characterized by comprising four mutually independent substance transport passage modules, wherein three of the mutually independent substance transport passageway modules are air supply passage modules and one of the mutually independent substance transport passageway modules is a fuel passage module; the three air supply passage modules respectively are upper and lower air supply passage modules designed at the upper and lower parts of the combustion test measuring table, and an air supply passage module which directly enters into an evaporating pipe; the one fuel passage module ensures that fuels enter into the evaporating pipe through a fuel passage; and partition parts at two sides of the combustion test measuring table respectively adopt high-temperature resistant glass or adopt optical glass and metal plates with measuring holes at low temperature. The measuring table provided by the invention has the advantages of carrying out corresponding adjustment along with a complete micro combustion chamber geometric structure and a pneumatic layout and being favorable for measuring internal flow field parameters of combustion chambers by virtue of most of existing measuring means. The measuring table provided by the invention is applicable to jet flow related basic theory research, performance detection of micro combustion chambers with diameter of 60mm-200mm or design verification of the primary internal flow field of the combustion chambers.

Description

technical field [0001] The invention relates to a small space combustion test and measurement platform based on modular design, which is used for measuring parameters such as temperature, pressure, speed, and various optical images of a combustion field in a small space or checking the performance of a small combustion chamber. The invention belongs to the field of measurement technology of a combustion field in a tiny space and the design of a tiny combustion chamber. Background technique [0002] The design of the micro-turbojet engine is different from the particularity of the conventional engine: on the one hand, problems such as low Reynolds number flow, short combustion residence time, and manufacturing process limitations caused by miniaturization have great impact on the design and working characteristics of the main components of the MTE. On the other hand, due to the compact structure and small size of the MTE machine, the dimensions of its components (such as the ...

AI Technical Summary

Problems solved by technology

In the field of micro-combustion chambers, the method of contact measurement will have a greater impact on the flow field and combustion field, making it difficult to obtain more comprehensive parameters of the entire field; non-contact measurement is almost impossible due to the small cross-section of the micro-combustion chamber It is not possible to provide the corresponding space

It is difficult to observe and measure the internal flow field parameters of the complete micro-combustor structure due to the limitation of the inlet and outlet space, thus limiting the further understanding of the combustion mechanism in the tiny space

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