Flue gas flow velocity measuring device

A flue gas flow rate, measuring device technology, applied in measuring device, fluid velocity measurement, velocity/acceleration/impact measurement, etc., can solve problems such as poor representativeness, affecting measurement results, pitot tubes or backrest pipe ash blocking, etc. Simple, highly automated, and easy to produce

Pending Publication Date: 2022-01-11
SUZHOU XIRE ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On-line flue gas flow measurement devices usually have only one measuring point, which is poorly representative, and under long-term operating conditions, the Pitot tube or the back tube is prone to clogging, which affects the measurement results

Method used

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  • Flue gas flow velocity measuring device
  • Flue gas flow velocity measuring device
  • Flue gas flow velocity measuring device

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Embodiment Construction

[0031] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention relates to a flue gas flow velocity measuring device which comprises a bracket; a flow velocity conversion part which is used for acquiring a flue gas flow velocity signal and converting the flue gas flow velocity signal into an electric signal and is movably arranged on the bracket; a power conversion part which receives the electric signal and converts the electric signal into a power signal, and is electrically connected with the flow rate conversion part; a central control part which is used for receiving the power signal and calculating the flow velocity of the flue gas, and is electrically connected with the power conversion part; and a moving assembly which drives the flow velocity conversion part to move on the bracket and is connected with the flow velocity conversion part. According to the invention, continuous multi-point measurement in one direction can be realized, measurement point positions can be adjusted in real time, flue gas flow velocity can be recorded in real time, flue gas flow velocity distribution in the direction can be obtained, the problem of poor representativeness of existing online flue gas flow velocity measurement can be effectively solved, and the problem of easy ash clogging in an existing device can be avoided through conversion of a signal transmission mode. The structure is novel, the operation is simple, the production is easy, and the production and maintenance cost is saved.

Description

technical field [0001] The invention belongs to the field of coal-fired power generation monitoring, and in particular relates to a flue gas velocity measurement device. Background technique [0002] The flue gas flow rate is one of the important indicators for the operation of coal-fired power plant boilers, and it is also an important parameter for monitoring the uniformity of the SCR denitration flow field and catalyst wear. Pitot tube or back tube is usually used to measure the flue gas flow rate. The principle is to measure the total pressure and static pressure of the flue gas, obtain the dynamic pressure of the flue gas through a micromanometer or U-shaped tube, and then calculate the flue gas flow rate. On-line flue gas velocity measurement devices usually have only one measuring point, which is poorly representative, and under long-term operating conditions, the Pitot tube or the back tube is prone to clogging, which affects the measurement results. There is a need...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P5/07
CPCG01P5/07
Inventor 王建阳韦振祖朱磊张庆文卢承政周健黄飞朱德力
Owner SUZHOU XIRE ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD
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