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Measuring device for wind speed of pulverized coal pipeline

A pulverized coal pipeline and wind speed measurement technology, which is applied in the direction of measuring device, fluid speed measurement, speed/acceleration/impact measurement, etc., can solve the problems of fixed measurement length and waste of the back pipe, and achieve low test cost, long service life, Ease of use for promotion

Inactive Publication Date: 2012-12-05
SHANGHAI ELECTRIC POWER CONSTR STARTING ANDADJUSTMENT TESTING LAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art that the measurement length of the backrest tube is fixed, and it is only used once, causing serious waste, and to provide an effective measurement length that is scalable and reusable, and the calibration coefficient only needs to be Air velocity measuring device for pulverized coal pipeline calibrated at the factory

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  • Measuring device for wind speed of pulverized coal pipeline
  • Measuring device for wind speed of pulverized coal pipeline

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Embodiment Construction

[0024] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.

[0025] Such as figure 1 and figure 2 As shown, the present invention provides a wind speed measuring device for a pulverized coal pipeline (commonly known as an air duct), which includes a first measuring tube 1 and a second measuring tube 2, one for connecting with a pulverized coal pipeline (not shown in the figure) Fixed head 3. Among them, the first measuring tube 1 and the second measuring tube 2 are arranged side by side to form a group of back tubes, which are used to simultaneously extend into the pulverized coal pipeline for wind speed measurement. The backrest tube is a sliding movable connection. In the present invention, the head 3 is arranged to be in a sliding movable connection with the backrest pipe, and the effective measurement length of the backrest pipe can be cha...

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Abstract

The invention discloses a measuring device for wind speed of a pulverized coal pipeline. The measuring device comprises a first measuring pipe, a second measuring pipe and a seal head. The first measuring pipe and the second measuring pipe simultaneously extend into the pulverized coal pipeline and are arranged side by side to form a group of back-to-back pipes, the seal head is used for being fixedly connected with the pulverized coal pipeline, and the back-to-back pipes are simultaneously penetratingly arranged in the seal head and are slidably movably connected with the seal head. The effective measurement length of the measuring device can be changed, the measuring device can be reused, and coefficients only need to be calibrated at one step when the measuring device is delivered from a factory, so that the measuring device is high in utilization efficiency and low in manufacturing cost.

Description

technical field [0001] The invention relates to a wind speed measuring device, in particular to a coal pulverized pipeline wind speed measuring device. Background technique [0002] During the commissioning process of the utility boiler, it is necessary to use the back pipe (composed of two measuring pipes back to back) to carry out the wind speed leveling test in the primary air pulverized coal pipe (hereinafter also referred to as the air pipe) on the same floor. This is the primary condition for uniform pulverized coal concentration at each primary air nozzle, preventing powder accumulation in the tube, organizing the air flow in the furnace, making the pulverized coal ignite stably, burning well in the furnace, and preventing slagging in some areas of the water wall. During the test, the back pipe extends radially into the air pulverized coal pipe, and the inlet of the back pipe is required to be located exactly in the center of the primary air pulverized coal pipe to be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P5/00
Inventor 孙磊张耀钱麟陈舢黄蓬阳张玮张丰顾伯伟刘志强王峰
Owner SHANGHAI ELECTRIC POWER CONSTR STARTING ANDADJUSTMENT TESTING LAB
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