Efficient H-shaped fin coal economizer

Abstract

The invention relates to an efficient H-shaped fin coal economizer comprising a water pipe and at least two fins. The efficient H-shaped fin coal economizer further comprises a power mechanism and a dust removal mechanism. The dust removal mechanism comprises a second supporting rod, a first spring, a rotating shaft, a lifting sleeve, a supporting sleeve, two rotating wheels, two fixed rods and two beating assemblies. The power mechanism comprises two rotating sleeves, two limiting assemblies and at least two drive assemblies. Each drive assembly comprises a support, a supporting frame, a first supporting rod, a third spring, a first baffle, a second baffle, two first connection sleeves and two second connection sleeves. According to the efficient H-shaped fin coal economizer, the dust removal mechanism can drive the beating blocks to move left and right in a reciprocating manner, so that dust on fins are shaken off through the beating blocks, then the amount of dust on the coal economizer is reduced, and water in the coal economizer can be evenly heated; and the rotating wheels can be driven to move up and down in a reciprocating manner through the power mechanism, and therefore power can be provided for the dust removal mechanism.

Description

technical field [0001] The invention relates to the field of economizers, in particular to a high-efficiency H-fin economizer. Background technique [0002] The economizer is a device installed at the lower part of the boiler tail flue to recover the waste heat of the exhausted smoke. It heats the boiler feed water into a saturated water heating surface under the pressure of the steam drum. Because it absorbs the heat of the high-temperature flue gas, it reduces It improves the exhaust temperature of the flue gas, saves energy and improves efficiency, so it is called an economizer. The steel pipe economizer is not limited by pressure and can be used as a boiling type. Made of carbon steel pipe, fins and fins are sometimes added to the pipe to improve the heat transfer effect. The steel pipe economizer is composed of horizontally arranged parallel elbow pipes (commonly known as serpentine pipes). In industry, it has gradually spread to agriculture and some related industries...

AI Technical Summary

Problems solved by technology

[0003] Generally, when the economizer is used on the boiler, because there is still a lot of dust in the exhaust gas of the boiler, after the economizer is used for a long time, a large amount of dust will accumulate on the surface of the economizer, and the dust will cause the economizer to The temperature of the flue gas after the coal heater decreases or the temperature difference between the two sides increases, which leads to uneven heating of the economizer, and at the same time increases the resistance of the economizer to the flue gas, thereby increasing the power consumption of the induced draft fan. Not only that, The economizer is generally installed inside the flue, resulting in a relatively harsh working environment for the economizer, and the general drive equipment cannot work normally in this environment

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