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Portable multipath wind pressure and wind speed tester

A portable, tester technology, used in the measurement of fluid velocity using differential pressure, testing of machine/structural components, instruments, etc., can solve the problem of not adapting to the performance test of multi-nozzle boilers, and achieve test accuracy assurance, comprehensive functions, and portability. light effect

Active Publication Date: 2012-01-04
STATE GRID TIANJIN ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to disclose a portable multi-channel wind pressure and wind speed tester in order to solve the technical problem that the current single-channel wind pressure and wind speed test device is not suitable for multi-nozzle boiler related performance tests

Method used

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  • Portable multipath wind pressure and wind speed tester
  • Portable multipath wind pressure and wind speed tester
  • Portable multipath wind pressure and wind speed tester

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Embodiment Construction

[0028] Further illustrate the present invention below in conjunction with embodiment and accompanying drawing.

[0029] Such as figure 1 , 2 , The embodiment shown in 3, 4, the portable housing of this tester is made of housing 1, carrying handle 8, and carrying handle 8 has the role of supporting foot concurrently. The lock block 8-1 matched with the handle 8 makes the handle positioned, and its structure is the same as that of the prior art, that is, the lock block 8-1 has an insertion piece, and when the lock block is pushed upwards, its insertion piece is connected with the handle fixed on the housing A socket of the fulcrum engages to lock the handle.

[0030] The front panel 2 of the portable housing is provided with a liquid crystal display 3 , a dedicated keyboard, a backlight switch 6 and a power switch 7 . The upper part of the power switch is provided with a charging indicator light.

[0031] Special-purpose keyboard is made up of numeral and control key keyboar...

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Abstract

The invention discloses a portable multipath wind pressure and wind speed tester, which consists of a shell, a display, a special keyboard, a single chip and a system management program / data memory thereof, a differential pressure sensor and a data acquisition and processing unit. Wind pressure sampling channels which correspond to each air pipeline to be tested respectively are arranged in parallel on the surface of the shell, each wind pressure sampling channel consists of a positive pressure side interface and a negative pressure side interface respectively, each channel is provided with the differential pressure sensor respectively, the analog quantity output of each differential pressure sensor is selected through an analog multipath switch and is connected with an input end of an A / D conversion circuit respectively, an output end of the A / D conversion circuit is connected with a data inlet of the single chip, and the single chip is provided with a serial communication interface.The tester is provided with a multi-channel sensor and an A / D converter which can be used for measuring and displaying wind pressure and wind speed data of each channel and a trend map of each channel simultaneously or respectively, and simultaneously, the multipath wind pressure and wind speed tester is also convenient for adjusting air door baffle plates which correspond to a plurality of ejector nozzles in a cooperating mode repeatedly so as to ensure the testing precision.

Description

technical field [0001] The invention belongs to testing devices, in particular to a portable multi-channel wind pressure and wind speed tester used for boiler performance tests such as boiler performance tests, combustion optimization adjustments, fan performance tests, and pulverizing system performance tests. Background technique [0002] At present, the wind pressure and wind speed test devices used for boiler-related performance tests at home and abroad are all single-channel, that is, only one airflow duct can be measured at a time. [0003] In actual tests, such as tests for optimizing and adjusting the combustion conditions of boilers, the process often requires repeated coordinated adjustments to damper baffles corresponding to multiple nozzles. [0004] Since the combustion-supporting air input by each nozzle is introduced from the same header, the wind speed of each nozzle will inevitably have adverse effects of mutual interference during the coordinated adjustment...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L9/00G01P5/14G01M99/00
Inventor 沙威黄靖宁陈珑刘新利刘卫平周连升边疆
Owner STATE GRID TIANJIN ELECTRIC POWER
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