Hinge connection rod-type high-efficiency self-cleaning device

Abstract

The invention provides a hinge connection rod-type high-efficiency self-cleaning device. The hinge connection rod-type high-efficiency self-cleaning devices are respectively arranged in a total-pressure taking pipe and a static-pressure taking pipe of a S-shaped pitot pipe-type gas flow rate measurement element, the length of each hinge connection rod-type high-efficiency self-cleaning device penetrates through the total-pressure taking pipe and the static-pressure taking pipe until extends to a total-pressure taking hole and a static-pressure taking hole, each hinge connection rod-type high-efficiency self-cleaning device comprises an installation bolt, a plurality of right ash cleaning rod joints, a plurality of hinge connection joints and an ash cleaning pendulum, upper ends of the hinge connection rod-type high-efficiency self-cleaning devices are respectively and fixedly arranged at upper parts of the total-pressure taking pipe and the static-pressure taking pipe by the installation bolts, each rigid ash cleaning rod joint is connected by the hinge connection joint, the bottom of the installation bolt is connected and fixed with the hinge connection joint at the uppermost end,and the ash cleaning pendulum is welded with a lower part of the rigid ash cleaning rod joint at the lowest end. By the hinge connection rod-type high-efficiency self-cleaning device, the swinging flexibility and irregularity of the ash cleaning device can be improved so as to achieve most excellent ash cleaning effect.

Description

technical field [0001] The invention relates to a self-cleaning device applied to measuring equipment for dust-laden airflow in a large-diameter pipeline of a boiler, in particular to a hinge-link type high-efficiency self-cleaning device. Background technique [0002] The gas velocity and flow measurement device based on the differential pressure measurement principle of the S-type pitot tube is a technical device that can be widely used in the measurement of air volume in large industrial pipelines. The components of the measuring device are inserted into the air duct. When there is airflow flowing through, the windward side measures the total pressure of the airflow, and the leeward side measures the static pressure of the airflow. There is a corresponding calculation relationship between the pressure difference value of the total pressure and the static pressure and the measured flow rate value, and the gas flow rate and flow rate in the air duct can be accurately measur...

AI Technical Summary

Problems solved by technology

However, the rigid soot cleaning rod is limited by its own rigid lever structure. Although it is good for cleaning the dust accumulation at the pressure tap, it is difficult to effectively clean the dust in the deep wall of the pressure measuring tube, so it has certain limitations.

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