H-shaped fin economizer

Abstract

The invention discloses an H-shaped fin economizer. The H-shaped fin economizer comprises two vertical supporting plates. Two horizontal connecting plates are fixedly connected between the two supporting plates and symmetrically connected to the centers of the supporting plates. Multiple arc-shaped through holes which communicate with each other in the left-and-right mode are uniformly distributedin the side walls of the supporting plates, and horizontal steel pipes are fixedly connected with the interiors of the arc-shaped through holes. A U-shaped bent pipe is fixedly connected with the bent portions of every two adjacent steel pipes, and the U-shaped bent pipes are correspondingly arranged on the outer sides of the two supporting plates. Multiple fins are uniformly distributed and connected with the outer sides of the steel pipes located between the two supporting plates, and the fins and the steel pipes are connected through an installation mechanism. The two steel pipes on the outermost side are connected with a water inlet pipe and a water outlet pipe. By the adoption of the H-shaped fin economizer, the damaged fins are conveniently replaced, and the long-term usage of the economizer is facilitated. In addition, the water in the economizer can be located in the flowing state, a heat recovery process is added to the cycle, the heat absorption average temperature is increased, and therefore the cycle efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of economizers, in particular to H-shaped fin economizers. Background technique [0002] The economizer is a device installed at the lower part of the boiler tail flue to recover waste heat. It heats the boiler feed water into the heating surface of saturated water under the pressure of the steam drum. Because it absorbs the heat of low-temperature flue gas, it reduces the temperature The temperature of the exhaust gas is improved, saving energy and improving efficiency, so it is called an economizer. [0003] At present, in the boiler manufacturing industry, finned tube economizers are installed in the furnaces of most large and medium-sized boilers. ) composition, fins and ribs can be added outside the tube to improve the heat transfer effect. This kind of finned tube economizer is the most widely used H-shaped finned tube economizer. The traditional H-shaped finned tube economizer includes a plurality o...

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Problems solved by technology

[0004] However, the existing fins are prone to damage after long-term use, which increases the cost of use and maintenance

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