Exhaust heat recovery and dust removal integrated biomass boiler heating system

Abstract

The invention discloses an exhaust heat recovery and dust removal integrated biomass boiler heating system. A high-position soft water tank is used for supplying water for a boiler; a boiler main body is provided with a hot water outlet pipe connected with rooms; a high-temperature exhaust pipe of the boiler main body is connected with an induced-draft fan; valves are arranged in each room to control hot water for use during a bath, and an electromagnetic valve is added and is linked with fan coils to work; a water return pipe is used for converging flow and returning water; a thread assembly is adopted by each of a coupling, a fan shaft and a fan impeller of the induced-draft fan; a helical direction of threads is a direction of automatic locking along with working and bearing; after tightly compressing a copper and lead torsion composite gasket, the fan impeller is in threaded rigid connection with the fan shaft; and the coupling and the other end of the fan shaft are enabled to be also in rigid connection by a hoop part. According to the exhaust heat recovery and dust removal integrated biomass boiler heating system disclosed by the invention, heat recovery and purification treatment on boiler exhaust are realized, and more importantly, a problem that the thread assembly of the induced-draft fan of a boiler is not easy to disassemble due to the fact that the thread assembly automatically locks continuously under load action can be effectively solved, and the exhaust heat recovery and dust removal integrated biomass boiler heating system is especially suitable for conveniently disassembling a large boiler fan under thread locking.

Description

technical field [0001] The invention relates to an integrated biomass boiler heating system for tail heat recovery and dust removal, which is convenient for dismantling and maintenance of an induced draft fan. Background technique [0002] The biomass boiler heating system mainly uses biomass such as corn stalks as fuel. Because biomass fuels are widely available in rural areas and are easy to obtain, and the heating in rural areas of our country is always difficult to solve due to various restrictions. Therefore, the development of biomass boiler heating systems is a must. An important way to solve the rural heating problem. [0003] The boiler is the main equipment of the biomass boiler heating system. The long-term operation of the fan is inseparable from the air supply and dust removal of the boiler. Therefore, the fan is the key equipment of the boiler. The larger the tonnage of the boiler, the larger the fan used , The structure of ordinary fans is generally that one ...

AI Technical Summary

Problems solved by technology

In the actual assembly of shafts and holes with transmission threads, in order to achieve large load-bearing functions, the size of the threaded shafts and matching nut-like components are relatively large, and it is often easy and convenient to screw in during assembly, and It can realize the automatic and continuous locking of the bearing capacity during use, so it is very reliable, but when it is disassembled, the assembly is often very tight, and disassembly is very difficult. It is particularly important to realize simple and easy disassembly under this condition

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