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Heat exchanger capable of effectively preventing incrustation scale hazard

A heat exchanger and scaling technology, applied in the field of thermal energy equipment, can solve the problems of increased investment, increased over time, reduced efficiency, etc., to achieve the effect of preventing fire overflow

Inactive Publication Date: 2013-01-23
吴鸣海
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcoming is to use coercive means to change the laws of nature, so that the investment increases, the efficiency decreases, and the harm is not eliminated and increases with time.

Method used

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  • Heat exchanger capable of effectively preventing incrustation scale hazard
  • Heat exchanger capable of effectively preventing incrustation scale hazard
  • Heat exchanger capable of effectively preventing incrustation scale hazard

Examples

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Embodiment Construction

[0021] The present invention can be used in steam generators, water heaters and water boilers, and this embodiment takes the steam generator as an example.

[0022] Such as Figure 1-4 As shown, the heat exchanger includes a shell 1 and a fire tube 2 arranged in the shell 1. The cross-sectional shape of the fire tube 2 is square, the lower part of the fire tube 2 is a vertical fire inlet 21, and the middle part of the fire tube 2 is curved. The heat exchange part 22, the fire tube 2 top is a vertical fire outlet 23. The heat exchanger 1 includes a bottom tank 11 , a top plate 12 and four side plates 13 . The cross-sectional shape of the bottom kettle 11 is an upside-down water tank. The protruding two sides of the bottom kettle 11 and the side plates 13 form two first scale storage tanks 111. One end of the first scale storage tank 111 is provided with a first scale discharge port 1111. The bottom end of the middle part of the dirt storage tank 111 is provided with a dirt an...

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Abstract

The invention discloses a heat exchanger capable of effectively preventing incrustation scale hazard. The heat exchanger comprises a heat exchanger shell and fire tubes arranged in the heat exchanger shell, wherein the sections of the fire tubes are square; the lower parts of the fire tubes are vertical fire inlets; the middle parts of the fire tubes are bent; and the upper parts of the fire tubes are vertical fire outlets. The incrustation scale layers at edges or corners easily cracke under stress effects due to square fire tubes; unbalanced temperature difference on the surfaces of the fire tubes and line expansion difference due to expansion and contraction between stainless steel and the incrustation scale can cause continuous cracking of the incrustation scale layers; the motive power produced by convection and evaporation when water is heated can flush the accumulated incrustation scale according to the design of water flow channels, so that the incrustation scale is difficult to accumulate and easy to fall off; and the regularly arrayed fire tubes make the falling off incrustation scale directionally move towards a incrustation scale storage groove and then stored. The motions are continuous and repeated, so that the incrustation scale does not seriously affect heat exchanging process after being produced. And the manual cleaning can be regularly performed through all slag holes.

Description

technical field [0001] The invention relates to the field of heat energy equipment, and more specifically relates to a heat exchanger. Background technique [0002] The heat exchanger of the invention is suitable for use in steam generators, water boilers and water heaters. After impurities in the water enter the heat exchangers of steamers, boilers, and hot water machines, as the water temperature continues to rise or evaporate, scale will form on the surface of the fire tube. [0003] Scale refers to the fact that during the heating process of water in nature, the substances in the form of calcium, magnesium, sodium and other ions in it become more chemically active than in cold water when they encounter carbon dioxide and water released during the heating process. A chemical process in which crystalline salts are produced by combining acid radicals of different forms. Scale is a common name for a mixture of many salts and impurities. [0004] Scale is very harmful: for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/08F28F1/04F28F7/00
Inventor 吴鸣海
Owner 吴鸣海
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