Spiral Heat Exchangers

The best

process

solutions

Опросный лист Spiral Heat Exchanger Application Form

Manufacturing of Stainless Steel, Carbon Steel And Titanium  Spiral Heat Exchangers

The company BTS-ENGINEERING  is engaged in the production and selling of spiral heat exchangers in Ukraine, as well as in Russia, Belarus, Lithuania.

There are two types of spiral heat exchangers:

  • vertical heat exchangers;
  • horizontal heat exchangers.

Вертикальные спиральные теплообменники

Горизонтальные спиральные теплообменники

Spiral heat exchangers are equipment, widely spread and used in the world industry, which is explained by a number of important advantages in comparison with other types of heat exchangers of. Spiral heat exchangers can be made of any roll material subjected to cold working and welding. Heat exchangers are compact, their design provides for the possibility of a complete countercurrent flow.
The self-cleaning effect makes spiral heat exchangers general-purpose equipment - they are applicable in working with liquid heterogeneous media, tending to deposit formation on the heat transfer surfaces, as well as with vapour or gas condensations under conditions of high vacuum.
The cross-sectional area of the channels along the entire length remains unchanged, and the flow does not have sudden changes in direction, so that the surface contamination of spiral heat exchangers is less than of other types.



Application. Spiral heat exchangers are used in alcohol, food, pharmaceutical, oil, chemical industries, housing and communal services as well as the other branches of industry where it is important to provide effective heat exchange. Application of spiral heat exchangers at the enterprises of alcohol industry gives opportunity to reduce water consumption substantially.

It is possible to use fluids that contain 20% of solids (saccharified wort, brew), as well as counter flows gas-liquid and gas-gas. Horizontal spiral heat exchangers are used for heat exchanging between two fluids. Vertical spiral heat exchangers are used for heat exchanging between condensable vapour and liquid. Such heat exchangers are used as condensers and steam heaters for heating fluids.

Характеристики спиральных теплообменников

Характеристики спиральных теплообменников

The Advantages of Spiral Heat Exchangers:

  • High heat transfer coefficient that can reach 3820 kcal/m2×hr×0C which is two times or three times higher than the coefficient of the tube-type heat exchangers.
  • Dependable design, due to the sealing of both channels counter currents do not interflow.
  • Comparing to the tube-type heat exchangers, spiral heat exchangers (SHE) occupy less space.
  • Possibility to treat media containing pulp, fiber, solid residue (up to 20%) as well as viscous fluids.
  • The advantages of spiral heat exchangers are: compact design, the low pressure drop and efficient heat transfer at the increased rate of heat transfer medium.
  • Easy access to internal surfaces and channels. Due to their detachable covers, the spiral heat exchangers are easy to be maintaned. It is pretty enough to remove the covers in order to get access to the channel surface to perform inspection and cleaning.
  • Possibility to treat media at temperature above 200-300°С, which is very important when applied in chemical industry.

Working principle

A spiral heat exchanger is constructed by rolling two relatively long metal strips around a mandrel to form two concentric spiral channels. The channels are alternately welded on opposite ends to form a hot and cold channel.

Distanced pins are welded on both sides to provide the sheets stiffness and strength as well as to fix the distance between the spirals.Spiral channels have a rectangular cross-section. They are limited by end caps. Spiral heat exchangers are made horizontal and vertical; they are often installed in blocks of two, four and eight units.

Nowadays, spiral heat exchangers are the most reliable and easy to operate among the heat exchangers.
Схема движения жидкости в спиральном теплообменнике
Liquid flow diagram in the spiral heat exchanger

Purpose.  Spiral heat exchangers are used in alcohol, food, pharmaceutical, petroleum, chemical, housing services and utilities and other branches of industry where high-efficiency heat exchange is required.

At distilling plants, the usage of spiral heat exchangers can dramatically reduce the amount of water consumed.

Liquids that contain up to 20% solids (sugared wort, mash) can be used, as well as counter flow:  gas-liquid and gas-gas. Horizontal spiral heat exchangers are used for heat exchange between two liquids.

Vertical spiral heat exchangers are used for heat exchange between condensing steam and liquid; such heat exchangers are used as condensers and steam heaters for liquid.

 

The tasks solved by using spiral heat exchangers:
• Cooling;
• Heating;
• Heat recovery;
• Condensation;
• Evaporation;
• Thermosyphon;
• Reboiler.



Photos of Spiral Heat Exchangers >>

Спиральные теплообменники
Теплообменники 200 кв.м, тепловая мощность 9 МВт.
Спиральные теплообменники в качестве охладителей