Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and device for measuring air film cooling efficiency with chemical heat sink

A technology of film cooling and chemical heat sinking, which is applied in the direction of material thermal development, etc.

Active Publication Date: 2015-03-25
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the flow and heat transfer of film cooling with chemical heat sinking can protect the turbine blades of aircraft engines, there is still a lack of measurement devices for the study of flow and heat transfer of film cooling with chemical heat sinking

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for measuring air film cooling efficiency with chemical heat sink
  • Method and device for measuring air film cooling efficiency with chemical heat sink
  • Method and device for measuring air film cooling efficiency with chemical heat sink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] see figure 2 and image 3 .

[0031] The measuring device of the present invention mainly includes four parts: a main flow air supply part, a cooling working medium air supply part, a film cooling plate and an experimental measurement part.

[0032] The main air supply part mainly includes an oil tank 10 , a combustion chamber (with a burner inside) 11 , a heat exchanger 12 , an induced draft fan 13 , a flow meter 14 and a voltage stabilizing box (with a rectification grid inside) 15 . The combustion chamber 11 is respectively connected to the oil tank 10 and the heat exchanger 12, and is connected to an induced draft fan 13 through the heat exchanger 12. The air outlet of the induced draft fan 13 connects the mainstream flue gas to the surge tank 14; water channel. The oil in the oil tank 10 is sprayed into the combustion chamber 11 through the oil pump on...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A device for measuring the air film cooling efficiency with chemical heat sink mainly comprises a mainstream air feed part, a cooling working medium air feed part, an air film cooling panel and an experimental measurement part. According to the measuring method and the measuring method, experimental study can be performed on the air film cooling method with the chemical heat sink to acquire the air film cooling efficiency and temperature field distribution under different conditions, and a basis is provided for future practical application.

Description

technical field [0001] The invention relates to a method and a device for measuring the efficiency of film cooling of a chemical heat sink, which can study the flow and heat transfer conditions of the film cooling of a chemical heat sink. Background technique [0002] In Chinese patent 200910079776.6 (Liang Shiqiang, Lei Jing, Huai Xiulan: A film cooling method for aero-engine turbine blades), a method for protecting aero-engine turbine blades - a film cooling method with a chemical heat sink is proposed. [0003] In this method, the cooling working fluid is injected into the surface of the blade from the gas film hole, heated by the mainstream gas, and the endothermic decomposition reaction is induced in the boundary layer of the protective gas film to generate various gases and mix together. At this time, the mixed gas generated spreads on the surface of the blade, hindering the transfer of heat from the mainstream gas to the surface of the turbine blade, and protects the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/42
Inventor 成克用淮秀兰梁世强蔡军
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI