The heat exchanger is the device in which transfer of warmth by cold (heated) is carried out from the hot heat carrier. In that case vapors, gases or liquids can be heat carriers. Depending on appointment the heat exchangers are used as heaters or as coolers. They are used in technological processes petrochemical, oil processing, chemical, gas and also in other industries.
Instruction
1. An important factor when choosing the heat exchanger is the look and also quality of the used heat carriers. When using of the softened, chemically purified water or heat carriers which do not form adjournment at change of their temperature (ethylene glycol, freon, alcohol, etc.) it is possible to stop the decision on a type of the solder lamellar heat exchanger.
2. On thermal points and boiler houses it is recommended to install lamellar folding heat exchangers. Because water in water supply and thermal systems often has no high quality and leads to emergence of a scum and other various deposits in heat exchangers. Advantages of lamellar folding heat exchangers are just their universality in maintenance — simplicity of dismantling allows to provide access to internal channels for cleaning and maintainability — to replace any any number of plates does not present any special difficulties and will not demand the special equipment.
3. On type the thermal devices are subdivided into mixing and superficial. Distinctive feature of the last is transfer of heat, directly, through plates without contact of heat carriers. Mixing work by the principle of contact between heat carriers.
4. Choosing the heat exchanger, it is desirable to provide a possibility of accumulation of volume of power.
5. In refrigerating systems and also in systems of cooling and heating of the pool lamellar solder heat exchangers which enter a design enough powerful pumps are best of all used. Also such thermal devices can be turned on in structure of ventilation systems both in big, and in small rooms.
6. In various industries: oil, food, chemical, pharmaceutical – where effective heat exchange is necessary, it is possible to use the spiral heat exchanger.
7. As heating for liquid and the condenser it is possible to install horizontal heat exchangers which use in the course of exchange of heat between two liquids.