Aerospace engine test bench flow measurement field calibration system and its cleaning method
An aerospace engine, on-site calibration technology, applied in jet engine testing, gas turbine engine testing, cleaning methods and appliances, etc., can solve the problems of flow measurement field calibration system pollution, low accuracy of aerospace engine flow measurement, etc., to prevent multiple A medium pollutes the calibration device, improves accuracy and stabilizes performance
Active Publication Date: 2021-10-29
BEIJING ZHENXING METROLOGY & TEST INST
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The invention provides an on-site calibration system for flow measurement of an aerospace engine test bench and a cleaning method thereof, which can solve the low accuracy of aerospace engine flow measurement in the prior art due to the influence of on-site environmental factors on the aerospace engine test bench such as vibration, pressure, and air bubbles. As well as the technical problem of contamination of the flow measurement field calibration system caused by the replacement of various media
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0025] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0026] It should be noted that the terminology used herein is for the purpose of describing specific em...
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
Login to View More Abstract
The present invention provides an aerospace engine test bench flow measurement on-site calibration system and a cleaning method thereof. The flow measurement on-site calibration system includes a fuel supply unit, a turbine flowmeter assembly, an engine test bench, a measurement and control unit, an on-site calibration assembly, and a cleaning system. Among them, the on-site calibration component includes a decompression unit, a gas elimination unit, and a passive volumetric tube connected in sequence. The decompression unit is used to reduce the fuel pressure in the pipeline, the gas elimination unit is used to remove gas in the fuel in the pipeline, and the passive volumetric tube is used for The volume of the flow in the pipeline is collected for calibrating the turbine flowmeter assembly, and the cleaning system is used to clean the on-site calibration assembly when replacing the fuel medium in the pipeline. The technical solution of the present invention is applied to solve the technical problems in the prior art of low accuracy of on-site measurement of engine flow and contamination of the calibration system by the replacement of various media due to the influence of on-site environmental factors on the engine test bench such as vibration, pressure, and air bubbles.
Description
technical field [0001] The invention relates to the technical field of flow measurement, in particular to an on-site calibration system for flow measurement of an aerospace engine test bed and a cleaning method thereof. Background technique [0002] The ground simulation test of the aerospace engine test bench is an important part of the aerospace engine development system engineering. Among them, the flow rate is one of the important parameters to evaluate the function, performance and stability of the aerospace engine. The accurate measurement of flow rate is very important to determine the performance of the aerospace engine. The measured value is directly used to calculate the main performance parameters such as thrust, mixing ratio and characteristic velocity of the aerospace engine. Based on this, it determines the working time of the aerospace engine, the flight speed of the missile, the range and other important indicators. Therefore, in recent years, the measurement...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01M15/14B08B3/00
CPCB08B3/00G01M15/14
Inventor 宋志强杨水旺黄相华谭逢喜高新方李启明
Owner BEIJING ZHENXING METROLOGY & TEST INST