Leak Detection Device and Leak Detection Method for Bag Dust Collector

Abstract

The invention provides a leak detection device and a leak detection method for a bag filter. The leak detection device includes a pulse solenoid valve and a gland. The pulse solenoid valve is respectively connected to an air inlet pipe and an air outlet pipe. cylinder body, the outlet pipe passes through the gland and extends below the gland, a pressure gauge is provided at the upper end of the gland, the material of the gland is steel, and the lower end of the gland is provided With gasket. The device is simple in operation and low in manufacturing cost. When using the device for leak detection, the detection time is short and the leak detection efficiency is high, and dust pollution caused by missed detection can be effectively avoided.

Description

Technical field [0001] The invention relates to the field of leak detection of dust removal devices, in particular to a leak detection device of a bag filter and a leak detection method thereof. Background technique [0002] The bag filter is a dry dust filter device, which is widely used in industrial practice, especially in coal-burning, metallurgy and other industries. The bag filter is suitable for collecting small, dry, non-fibrous dust. The filter bag is made of woven filter cloth or non-woven felt. The filter effect of the fiber fabric is used to filter the dust-containing gas. When the dust-containing gas enters the bag After the dust collector, the dust is adsorbed on the bag, and the dust removal device cleans the bag. The dust settles under the impact and shaking of gravity and gas and falls into the ash bucket. In the metallurgical industry, a large amount of dust is usually generated during workshop operations. At this time, a large-capacity bag filter is required. ...

AI Technical Summary

Problems solved by technology

[0004] The charge induction method is to determine the level of the dust concentration according to the amount of charge of the dust group for leak detection. The dust in the flue gas has a certain amount of charge more or less. In principle, the higher the dust concentration, the charged The more the total amount, but because the electrical properties of different dusts are very different, some dusts are easy to charge, some dusts are not easy to charge, some dusts are easy to charge positively, and some are easy to charge negatively. It can be seen that the charge The leak detection accuracy of the induction method is not ideal

[0005] However, the above two methods can only determine whether there is damage to the bag, and cannot specify which bag is damaged. Therefore, when the bag is leaked, the usual practice in practice is to require the maintenance personnel to observe with the naked eye and judge the damage of the bag by experience. There are a large number of cloth bags, and the maintenance personnel subjectively judge the damage of the bags is not accurate, and the process consumes a lot of human resources and time

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