Shell and Tube Heat Exchangers
Shell and Tube Heat Exchangers
Valutech sells a variety of shell and tube heat exchangers using computer generated thermal and mechanical design, seismic analysis and detailed, scaled manufacturing drawings.
Each heat transfer device is individually designed to ensure optimum compatibility with its application. Valutech represents Doyle and Roth, Enerquip and other manufacturers product designs and builds:
- Condensate coolers
- High temperature hot water steam generators
- Liquid chillers
- Chemical process equipment
- Vapor and steam condensers
Material:
The demands made today on manufacturers by the diverse processes that use heat exchangers require an equally diverse range of construction materials and the ability to work with them with full competency. Our products are carbon steel, stainless, titanium and nickel or copper alloys. Every unit is manufactured under strictly controlled standards of workmanship, ensuring conformity with ASME Code Section VIII Div 1.
Capabilities
- Computer Generated Thermal and Mechanical Design
- Computer Generated Seismic Analysis
- Computer Generated Drawings, Detailed and Scaled
- NC/CNC Drilling
- Custom Fabrication
Codes and Standards
- ASME
- TEMA
- HEI
- API
- Coast Guard
Materials of Construction
- Carbon Steel
- Cast Iron
- Stainless Steel
- Brass
- Copper
- Cupro-Nickel
- Hastelloy
- Alloy 20
- Titanium
- Inconel
- Incolloy
- Monel
About Shell and Tube Heat Exchangers
A shell and tube heat exchanger is a class of heat exchanger designs.[1][2] It is the most common type of heat exchanger in oil refineries and other large chemical processes, and is suited for higher-pressure applications. As its name implies, this type of heat exchanger consists of a shell (a large pressure vessel) with a bundle of tubes inside it. One fluid runs through the tubes, and another fluid flows over the tubes (through the shell) to transfer heat between the two fluids. The set of tubes is called a tube bundle, and may be composed of several types of tubes: plain, longitudinally finned, etc.
Two fluids, of different starting temperatures, flow through the heat exchanger. One flows through the tubes (the tube side) and the other flows outside the tubes but inside the shell (the shell side). Heat is transferred from one fluid to the other through the tube walls, either from tube side to shell side or vice versa. The fluids can be either liquids or gases on either the shell or the tube side. In order to transfer heat efficiently, a large heat transfer area should be used, leading to the use of many tubes. In this way, waste heat can be put to use. This is an efficient way to conserve energy.
