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Afterburner flow resistance test system taking engine as air source and method thereof

A technology of afterburner and test system, which is applied in the field of afterburner flow resistance test system, can solve the problems of high cost and high risk, and achieve the effect of reducing cost and risk and simplifying the system

Active Publication Date: 2020-06-16
SICHUAN AEROSPACE ZHONGTIAN POWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on the above problems, the present invention provides an afterburner flow resistance test system and method thereof with the engine as a gas source, which is used to solve the problem of high cost and high risk of carrying out the afterburner component flow resistance test in the prior art question

Method used

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  • Afterburner flow resistance test system taking engine as air source and method thereof
  • Afterburner flow resistance test system taking engine as air source and method thereof
  • Afterburner flow resistance test system taking engine as air source and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] like Figure 1-2 As shown, an afterburner flow resistance test system with an engine as an air source includes a control system 11, and the control system 11 is electrically connected with a test system 12, an adjustable tail cone device 13 and a control object, and the control object includes an engine 2 , the afterburner 10 and the adjusting tail vertebra 9, the engine 2 is connected with the circular torque transfer section 3 and the test section in turn, the test section is provided with a temperature and pressure measurement system, the test section is connected with the adjusting tail vertebra 9, and the adjustable tail The vertebral device 13 is electrically connected with the adjusting tail vertebra 9 .

[0027] Working principle: use the controller to adjust and adjust the position of the tail cone 9 to the initial position, use the test system 12 to issue a control command to the controller, the controller converts the control command into an actuator signal t...

Embodiment 2

[0029] like Figure 1-3 As shown, on the basis of the above-mentioned embodiment, this embodiment provides a more specific preferred structure of the system, that is, the test section includes a diffuser 5, a flame stabilizer 6 and an afterburning cylinder 7 that are connected to each other, The diffuser 5 is connected to the circular torque transfer section 3, and the forcing cylinder 7 is connected to the adjusting tail cone 9; the temperature and pressure measurement system includes a total temperature probe 14 and a total pressure probe 15, and the diffuser 5 is connected to the circular torque The contact surface of the transition section 3 is the B-B section 4, the D-D section 8 is provided on the forcing cylinder 7, and the D-D section 8 and the B-B section 4 are respectively provided with a total temperature probe 14 and a total pressure probe 15. The probe 14 is electrically connected to a temperature signal processor 16, the total pressure probe 15 is electrically co...

Embodiment 3

[0034] like Figure 1-3 As shown, a method for testing flow resistance of an afterburner with an engine as an air source includes the following steps:

[0035] Step 1: Use the controller to adjust the position of the tail cone to the initial position without installing the flame stabilizer 6;

[0036] Step 2: Start the engine 2 to the idle speed, use the test system 12 to issue a control command to the engine 2 controller, and the controller converts the control command into an actuator signal to the engine 2; after the controller starts to idle for a period of time, accelerate to The working speed that meets the environmental conditions at the inlet of the afterburner 10;

[0037] Step 3: The test system 12 and the controller both collect and obtain the total temperature and total pressure of the B-B section 4 and the D-D section 8, and calculate the flow resistance loss of the diffuser 5 according to the total pressure recovery coefficient; wherein, the cold state total pre...

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Abstract

The invention relates to the technical field of engine afterburner tests, in particular to an afterburner flow resistance test system taking an engine as an air source and a method thereof, which areused for solving the problems of high cost and high risk of developing an afterburner part flow resistance test in the prior art. A control system is included; the control system is electrically connected with a test system, an adjustable caudal vertebra device and a control object; the control object comprises an engine, an afterburner and an adjusting caudal vertebra; the engine is sequentiallyconnected with a circular torque switching section and a test section; a temperature and pressure measuring system is arranged on the test section; the test section is connected with the adjusting caudal vertebra; and the adjustable caudal vertebra device is electrically connected with the adjusting caudal vertebra. The engine serves as an air source, the temperature and pressure environment needed by an afterburner inlet is provided in a simulated mode, the system is used for carrying out a flow resistance verification test of the afterburner, the whole system is simple, and therefore the cost and the risk of the flow resistance test of the afterburner part can be reduced.

Description

technical field [0001] The invention relates to the technical field of engine afterburner test, in particular to a flow resistance test system and method of an afterburner with an engine as an air source. Background technique [0002] The afterburner injects fuel, ignites, and burns the air behind the gas or fan on the afterburner to increase the temperature of the airflow to increase the thrust of the engine in a short period of time. In order to verify the rationality of the afterburner design, it is necessary to carry out additional Flow resistance verification test of a force combustion chamber. [0003] The flow resistance verification test methods for the afterburner in the prior art mainly focus on the afterburner ignition and the test of the whole engine, so it is costly and risky to carry out the flow resistance test of the afterburner components alone. Therefore, there is an urgent need for a lower cost and less risky test system and test method to conduct flow re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M15/02
CPCG01M15/02
Inventor 王文杰王丹丹陈溯周君辉熊建东
Owner SICHUAN AEROSPACE ZHONGTIAN POWER EQUIP CO LTD