Boiler dust removal device and boiler dust removal system

Abstract

The invention provides a boiler ash cleaning device, which comprises a gas pipe provided with an air inlet and an air outlet and a drug storage device connected to the gas pipe, the gas pipe is provided with a connection hole, and the gas inlet is connected to the A first valve is arranged between the holes, and a second valve is arranged between the air outlet and the connecting hole; one end of the drug storage device is connected to the trachea through the connecting hole; The other end is fitted with a removable cover. Moreover, the boiler dust removal device further includes a connecting pipe, one end of the connecting pipe is connected to the connecting hole, the other end of the connecting pipe is connected to one end of the drug storage device, and the connecting pipe is provided with a third valve. The present invention also provides a boiler dust removal system comprising the boiler dust removal device. The invention is flexible in use and has good user experience.

Description

technical field [0001] The invention relates to the technical field of boiler equipment, in particular to a boiler dust removal device and a boiler dust removal system. Background technique [0002] During the production and operation of boilers (such as marine boilers and locomotive boilers, etc.), dust will accumulate on the heating surface, flue and other surfaces. The additional thermal resistance brought by boiler dust accumulation will also seriously affect the heat transfer inside and outside the heating surface of the boiler, which will increase the exhaust gas temperature and reduce the thermal efficiency of the boiler. Frequent and severe cases, the furnace is even forced to stop for cleaning and pipe bursting, resulting in a greatly shortened operating cycle. [0003] At present, there have been boiler soot cleaning methods such as compressed air soot blowing and soot cleaning agent cleaning. Among them, compressed air soot blowing uses high-pressure gas to impac...

AI Technical Summary

Problems solved by technology

The additional thermal resistance brought by boiler dust accumulation will also seriously affect the heat transfer inside and outside the heating surface of the boiler, which will increase the exhaust gas temperature and reduce the thermal efficiency of the boiler. Frequent, severe cases, even forced to shut down the furnace for cleaning and pipe bursting, resulting in a greatly shortened operating cycle

[0003] At present, there have been boiler soot cleaning methods such as compressed air soot blowing and soot cleaning agent cleaning. Among them, the compressed air soot blowing uses high-pressure gas to impact the dust to achieve the purpose of dust removal, and the cost of compressed air soot blowing is low. The ash efficiency is high; however, compressed gas soot blowing can only remove the soot accumulated on the heating surface that can be blown, so there is a dead angle of soot blowing

In addition, the cleaning agent is mainly because: the cleaning agent contains an oxidant, which fully oxidizes the deposited ash and carbon monoxide in the flue gas when it is burned, and the cleaning agent also contains nitrates. , can form a eutectic liquid with a low melting point with the hard ash on the heating surface and drop it, and because the nitrate and the carbon in the fuel and a small amount of sparse form "gunpowder" on the surface of the micro-area, the "gunpowder" explodes when burning The gas shock wave also promotes the soot to fall off; the way of cleaning dust by cleaning agent can carry out all-round cleaning, but its disadvantage is that it needs to continuously add cleaning agent, so the cost is high

[0004] Therefore, the existing boiler cleaning methods of compressed gas soot blowing and soot cleaning agent cleaning are too simple, and the cleaning method is not flexible, which makes the user experience unsatisfactory

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