Rationality and efficiency of thermal energy use in a market economy can be ranked among the main factors that have a direct impact on determining the strategy of technological re-equipment and technical re-equipment of any enterprise. Reliability, efficiency, availability of warranty and service today are the basic elements on which the economic success and prosperity of all participants in economic relations are based.
When purchasing new types of equipment, any organization is guided primarily by the above criteria. High-quality shell and tube heat exchangers are just such an efficient and economical equipment. Today, the relevance of these devices for enterprises of any profile and orientation is not even in doubt. At present, shell-and-tube heat exchangers are most widely used in the petrochemical, chemical and food industries, housing and communal services and the energy industry.
Visibility, brightness of such latest technical and economic solutions, which have many advantages over obsolete types of equipment, have recently attracted more and more enterprises from various sectors of the national economy. After all, shell-and-tube heat exchangers can significantly reduce the consumption of heat resources, which has a positive effect on the cost of production and, consequently, on its final price. And this is extremely important in modern economic realities with their conditions of fierce competition.
Shell-and-tube heat exchangers are devices where the process of heat exchange between various working media takes place (regardless of their technological specification and energy purpose). As a rule, such devices perform the functions of heaters, evaporators, condensers, pasteurizers, deaerators, economizers, etc.
Shell-and-tube heat exchangers can have an extremely diverse technological purpose and be used in the production of a wide variety of profiles. The range of their application today is unusually wide. The shell-and-tube heat exchanger, the main structural elements of which are bundles of tubes with grids, a casing, branch pipes and covers, can be used as a unit in which the transfer of thermal energy is the main technological process, or as a reactor in which heat exchange is exclusively of an auxiliary nature.
The operating principle of shell and tube heat exchangers is based on the processheat transfer from a medium moving at high speed inside small diameter pipes to a medium circulating in a shell. In order to increase the intensification of the heat transfer process, such units are often equipped with special baffles in the tube and shell spaces.
Shell and tube heat exchangers are available in vertical, horizontal or inclined spatial orientation (depending on process requirements and ease of installation). Such units are a full-fledged alternative to plate heat exchangers, in comparison with which, although they have a lower efficiency of energy transfer, they have a relative simplicity of design, as well as low cost, which can be a decisive argument when choosing such equipment.
