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System for testing actual impact domain of nozzle

A testing system and nozzle technology, which is applied in the testing of mechanical components, testing of machine/structural components, measuring devices, etc., can solve problems such as different ranges of impact domains, no consideration of impact, and incomplete range of impact domains, etc., to improve the nozzle performance, the effect of optimized nozzle design

Active Publication Date: 2016-02-24
LIAONING TECHNICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above nozzle performance test method can only measure the droplet distribution when the nozzle is sprayed vertically on the ground, which is often different from the actual impact area of ​​the nozzle used for dust removal in actual production.
In addition, when affected by factors such as spray distance, spray angle, gravity, wind speed, etc., even for the same nozzle, its actual impact range will be significantly different under different conditions of use.
The actual impact range obtained through the above-mentioned nozzle performance test method is not comprehensive, and it does not consider the influence of spray distance, spray angle, gravity, wind speed and other factors on the actual impact range.

Method used

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  • System for testing actual impact domain of nozzle
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1: Test with rotating measuring rod

[0032] First, gradually open the regulating valve 18 until the liquid flow and pressure entering the nozzle 2 meet the set requirements. At this time, the rotating drive motor 7 is started, and the rotating measuring rod 8 is rotated at a constant speed by rotating the drive motor 7. During this process, the nozzle 2 sprays The discharged droplets will continuously impact and rotate the pressure sensor 12 on the measuring rod 8. The pressure sensor 12 outputs the generated pressure signal to the charge amplifier 13 for amplification processing, and the amplified pressure signal is output to the multi-channel data acquisition In the instrument 14, the pressure signal collected by the multi-channel data acquisition instrument 14 and the rotation speed, start time, and rotation time information of the rotating measuring rod 8 are comprehensively processed through the computer 15, and finally the position polar coordinate informatio...

Embodiment 2

[0033] Example 2: Test using translational measuring rod

[0034] First, gradually open the regulating valve 18 until the liquid flow and pressure entering the nozzle 2 meet the set requirements. At this time, the translational traction motor 10 is started, and the traction rope 11 is tightened by the translational traction motor 10 to make the translational measuring rod 9 translate at a constant speed. In this process, the droplets ejected from the nozzle 2 will continuously impact the pressure sensor 12 on the translational measuring rod 9. The pressure sensor 12 outputs the pressure signal generated to the charge amplifier 13 for amplifying processing. The pressure signal is then output to the multi-channel data acquisition instrument 14. The pressure signal collected by the multi-channel data acquisition instrument 14 and the translation speed, start time, and translation time information of the translation measuring rod 9 are comprehensively processed through the computer 15...

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PUM

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Abstract

The invention discloses a system for testing the actual impact domain of a nozzle, and the nozzle is disposed at the top of a lifting rod. The nozzle is connected with the lifting rod through a universal connector. The nozzle is communicated with a high-pressure liquid source through an electromagnetic flowmeter and a pressure transmitter. The bottom of the lifting rod is connected to a distance adjustment guide rail through a sliding block, wherein the distance adjustment guide rail is horizontally disposed at the bottom of a rack. The rack opposite to the nozzle is provided with an annular guide rail, and the center of the annular guide rail is provided with a rotating drive motor. One end of a rotating measurement rod is fixedly connected to a motor shaft of the rotating drive motor, and the other end of the rotating measurement rod is connected with the annular guide rail through a sliding block. The upper and lower sides of the annular guide rail are provided with linear guide rails. Two ends of a translation measurement rod are connected to the linear guide rails through sliding blocks. Parts, at end parts of the linear guide rails, of the rack are provided with a translation traction motor. The translation measurement rod is connected with the translation traction motor through a traction rope. The rotating measurement rod and the translation measurement rod are provided with a plurality of pressure sensors which are arranged uniformly. The pressure sensors are sequentially connected with a computer through a charge amplifier and a multichannel data collector.

Description

Technical field [0001] The invention belongs to the technical field of nozzle performance testing, and in particular relates to a nozzle actual impact domain range test system, which is suitable for testing the actual impact domain range of different jet nozzles. Background technique [0002] Nozzles have been widely used in human production and life, and have long been indispensable in industries, agriculture, and transportation. The performance of the nozzle will directly affect the equipment and process of using the nozzle. Therefore, testing the nozzle performance is an indispensable link. [0003] Taking the dust prevention and control field in mine production as an example, in order to meet the needs of dust removal, the use of water mist nozzles is very common. The droplets ejected through the water mist nozzle need to be in close contact with suspended dust particles to achieve better dust removal. The actual impact area of ​​the nozzle is just one of the important factors...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 韩方伟耿晓伟刘剑王东升王天暘
Owner LIAONING TECHNICAL UNIVERSITY