Split type spiral coiled type double-pipe heat exchanger

Abstract

The invention discloses a split type spiral coiled type double-pipe heat exchanger. The heat exchanger comprises a plurality of spiral coiled type heat exchange sleeve structures, wherein the plurality of spiral coiled type heat exchange sleeve structures are fixed on a support mechanism, and the adjacent spiral coiled type heat exchange sleeve structures are connected through pipe fitting structures; each spiral coiled type heat exchange sleeve structure is composed of a plurality of layers of spiral coiled heat exchange sleeves, wherein the heat exchange sleeves are obliquely arranged, and comprise inner pipelines and outer pipelines which are arranged in a coaxial sleeve mode, the inner pipelines are connected with inner pipeline inlet pipes, and the outer pipelines are connected with outer pipeline inlet pipes; and the inner pipelines are formed by connecting a plurality of inner straight pipes through a plurality of inner 90-degree elbow pipes, and the outer pipelines are formed by connecting a plurality of outer straight pipes through a plurality of outer 90-degree elbow pipes. The heat exchanger solves the problem that a fluid heat exchanger which contains solids, salt, organic matters and the like and is prone to scaling and blocking is internally difficult to clean and maintain under high-temperature and high-pressure conditions, so that long-term, stable and safe operation of the heat exchanger is guaranteed.

Description

Technical field [0001] The invention relates to a detachable, cleanable and maintainable sleeve-type heat exchanger used in the technical fields of energy, chemical industry, environmental protection, petroleum and metallurgy, and particularly relates to a new type of split spiral coiled type that can be cleaned and maintained Casing heat exchanger. Background technique [0002] In energy, chemical, environmental protection and other industries, heat exchangers are one of the important equipment. Many materials in the production process are complex and diverse. For example, sewage and waste in sewage treatment contain a large amount of organic matter, inorganic salts and solid particles. It is easy to foul on the heated wall of the heat exchanger, which will block the heat exchanger and affect the efficiency and safety of equipment operation. As the main equipment in the chemical and environmental production fields, the operating efficiency of the heat exchanger directly affects...

AI Technical Summary

Problems solved by technology

However, common materials always contain a large amount of organic matter, inorganic salts, solid particles and other components that are easy to scale and deposit, resulting in silting and blockage of heat exchanger pipes, especially in areas where the flow rate decreases such as inner pipe bends and outer pipe connecting pipes.

Traditional casing heat exchangers are mainly horizontal bends, and they are always a whole, which is not conducive to cleaning and sewage discharge at the bends, incomplete operation, poor effect, and is not conducive to the dismantling and maintenance of local areas, especially For large heat exchanger equipment, the above problems are more prominent when cleaning, repairing or replacing parts

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