Burner of aircraft fire protection testing apparatus

A test device and burner technology, applied in the field of aviation test, can solve problems such as poor flame temperature uniformity of the burner, poor flame temperature uniformity of the burner, failure to meet standard requirements, etc., to increase flame temperature uniformity, flame Effect of temperature uniformity improvement

Inactive Publication Date: 2015-08-05
HARBIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is: the uniformity of the flame temperature of the burner is poor, and the flame temperature often exceeds the range of 1100°C ± 80°C
The main reasons are: 1. The mixing of gas and compressed air is not sufficient; 2. The local pressure of cooling gas is too high
The above factors cause the uniformity of the flame temperature of the burner to be poor, which cannot meet the standard requirements

Method used

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  • Burner of aircraft fire protection testing apparatus
  • Burner of aircraft fire protection testing apparatus

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Embodiment Construction

[0008] The present invention will be described in further detail below. see figure 2 , a burner of an aircraft fire test device, comprising a housing 1, a combustion chamber 3 and a mixing base 4; the housing 1 has a bowl-shaped profile, and the outer diameter of the upper port of the housing 1 is greater than that of the lower port; The upper port of the body 1 is smoothly transitioned to the lower port, the combustion chamber 3 is welded in the upper port of the housing 1, the mixing base 4 and the lower port of the housing 1 are welded as a whole or are integrally connected by threads, and the mixing base 4 has The gas inlet 4a and the compressed air inlet 4b, the air outlet of the mixing base 4 are located in the lower port of the housing 1; it is characterized in that there is a mixing net assembly on the lower port of the housing 1 and above the air outlet of the mixing base 4 5. The mixed mesh assembly 5 is composed of 2 to 6 layers of mixed mesh stacks. The mesh size...

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Abstract

The invention belongs to an aviation testing technique and relates to improvement of a burner of aircraft fire protection testing apparatus. The burner comprises a housing (1), a burning chamber (3) and a mixing base (4) and is characterized in that a mixing net module (5) is arranged in a lower port of the housing (1) and located on an air outlet of the mixing base (4), an annular cooling sleeve (7) is arranged on the outer surface of the housing (1), at least three compressed air inlet connecting nozzles (9) evenly distributed in the circumference are formed in the lower surface of the cooling sleeve (7), and a circle of cooling air inlet holes (8) evenly distributed in the circumference are formed in the outer surface of the housing (1). By means of the burner of the improved aircraft fire protection testing apparatus, the flame temperature uniformity of the burner is greatly improved, and the flame temperature of the burner meets the standard requirement.

Description

technical field [0001] The invention belongs to the aviation test technology and relates to the improvement of the burner of the aircraft fire test device. Background technique [0002] The burner of present a kind of aircraft fireproof test device sees figure 1 , which consists of a housing 1, a combustion chamber 3 and a mixing base 4. The housing 1 has a bowl-shaped shape, the outer diameter of the upper port of the housing 1 is larger than that of the lower port, and the transition from the upper port to the lower port of the housing 1 is smooth, and the combustion chamber 3 is welded in the upper port of the housing 1. The mixing base 4 and the lower port of the housing 1 are welded as a whole or connected as a whole by screwing. There are a gas inlet 4a and a compressed air inlet 4b on the mixing base 4. The gas outlet of the mixing base 4 is located in the lower port of the housing 1. There are four cooling air nozzles 2 on the outer surface of the housing 1 , and t...

Claims

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Application Information

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IPC IPC(8): F23D14/02F23D14/62F23D14/78
CPCF23D14/02F23D14/62F23D14/78
Inventor 郑牧杨世涛薛伟松董巍蔡晓旭薛乃奇
Owner HARBIN
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