The rationality and efficiency of the use of thermal energy in a market economy can be attributed to the main factors that have a direct impact on determining the strategy of technological re-equipment and technical re-equipment of any enterprise. Reliability, cost-effectiveness, availability of warranty and after-sales services are today the basic elements on which 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, in housing and communal services and in the energy sector.
The visibility and brightness of such latest technical and economic solutions, which have many advantages over obsolete types of equipment, have recently attracted more and more enterprises of various sectors of the national economy. After all, shell-and-tube heat exchangers can significantly reduce the consumption of heat resources, which positively affects the cost of production and, therefore, its final price. And this is extremely important in modern economic realities with their conditions of fierce competition.
Shell-and-tube heat exchangers are apparatuses where the process of heat exchange between different 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 can be used in the production of various profiles. The range of their application is unusually wide today. A shell-and-tube heat exchanger, the main structural elements of which are tube bundles with gratings, a casing, nozzles and covers, can be used as a unit in which heat energy transfer is the main technological process, or as a reactor in which heat transfer is exclusively auxiliary.
The principle of operation of shell-and-tube heat exchangers is based on the process of heat transfer from a medium moving at high speed inside pipes of small diameter to a medium circulating in a casing. In order to increase the intensification of the heat transfer process, such units are often equipped with special partitions in the pipe and annular spaces.
Shell and tube heat exchangers can have a vertical, horizontal or inclined spatial orientation (depending on the requirements of the process and in accordance with the 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 and low cost, which can be a decisive argument when choosing such equipment.