Heat exchanger with automatic cleaning device

Abstract

The invention provides a heat exchanger with an automatic cleaning device. The heat exchanger comprises a barrel, a group of parallel heat transfer tubes and the automatic cleaning device, wherein the two end parts of the barrel are provided with end covers; a medium A inlet and a medium A outlet are formed at the two ends of a barrel wall; the heat transfer tube is a straight tube; the two end parts of the heat transfer tube are respectively fixed on an installation plate; a heat exchange chamber is formed between two installation plates and the barrel wall; a medium B inlet buffer chamber is formed between one installation plate and the barrel end cover on the outer side of the one installation plate; a medium B outlet buffer chamber is formed between the other installation plate and the barrel end cover on the outer side of the other installation plate; the automatic cleaning device comprises a cleaning frame, a scrubbing ring piece and a driving device; and the cleaning device is driven to do reciprocating motion along the axial direction of the heat transfer tubes by the driving device. The heat exchanger with the automatic cleaning device can be widely applied to cooling systems of a pharmaceutical factory, a power plant, a boiler and the like in the industries needing refrigeration.

Description

Technical field: [0001] The invention relates to a heat exchanger with an automatic cleaning device, which belongs to the field of heat exchangers. Background technique: [0002] At present, industrial water-cooled heat exchangers are widely used in pharmaceutical factories, power plants and other fields. With the passage of time, the surface of the heat transfer tube will inevitably be eroded by the medium, resulting in scaling and erosion on the surface of the heat transfer tube. The phenomenon is serious, resulting in a sharp drop in the heat exchange efficiency of the heat exchanger, which seriously affects the normal operation of the system. In the current heat exchanger, the inner surface of the heat transfer tube is cleaned more, and the equipment for cleaning the outer surface of the heat transfer tube is rare. Since the heat transfer tube is densely arranged in the heat exchanger, the external Surface cleaning is not easy to achieve. If manual cleaning is used, the...

AI Technical Summary

Problems solved by technology

[0002] At present, industrial water-cooled heat exchangers are widely used in pharmaceutical factories, power plants and other fields. With the passage of time, the surface of the heat transfer tube will inevitably be eroded by the medium, resulting in scaling and erosion on the surface of the heat transfer tube. The phenomenon is serious, resulting in a sharp drop in the heat exchange efficiency of the heat exchanger, seriously affecting the normal operation of the system

In the current heat exchanger, the inner surface of the heat transfer tube is cleaned more, and the equipment for cleaning the outer surface of the heat transfer tube is rare. Since the heat transfer tube is densely arranged in the heat exchanger, the external The cleaning of the surface is not easy to achieve. If it is cleaned manually, the cleaning efficiency is low, the labor intensity is high, and the cost is high. If it is cleaned chemically, the chemical substance will pollute the steam or cooling medium that needs to be condensed. Generally, it is not recommended to use it.

And if it is necessary to clean with the above method, the system needs to be shut down, which will affect the normal production

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