Tube Bundle Heat Exchangers
Introduction
Tube bundle heat exchangers are primarily suited for heat transfer between various liquids and gases with or without phase change. Excellent results have been obtained using water, thermal oil, wet steam etc. to warm or cool liquids and gases. The standard series consists of 6 sizes with heat transfer surfaces ranging from 0.5 to 500 m2.
Range of application
Tube bundle heat exchangers have a great versatility in their use and are applied in different branches of the industry, e.g.:
• Power station technics
• Machine industry
• Gear manufacturing
• Chemical Industry
• Process engineering
Design and Function
The heat exchangers consist basically of housing and tube bundle. The housing is a welded construction and includes all connecting, joining and fastening elements.
- The standard smooth tube bundle to be installed is a two-way model.
- The exchanger design variation with U-tubes (U-design),
- The variation with the floating tube base (D-design) or with
- A fix compensator (K-design), all of them allow for large changes in length between the casing and the tube bundle due to heat expansion.
Materials
The following material combinations are possible (special materials on request):
- Casing tube:- Steel St37-2, St37-2 galvanised, stainless steel V2A/V4A
- Lid:- Steel St37-2, St37-2 coated with RILSAN, stainless steel V2A/V4A
- Cooling tubes:- SF-CU, CuZn20Al, CuNi10Fe, CuNi30Fe, stainless steel V2A/V4A
Type G: Tube bundle heat exchanger
Type GK: Tube bundle condenser
Type GV: Tube bundle evaporator
Type GD: Steam generation plant
Type GA: Exhaust gas heat exchanger
Type GS: Safety heat exchanger
1.Type G: Tube bundle heat exchanger
Tipo Tube bundle heat exchanger for liquids and gases. Depending on the requirements different materials up to maximum quality stainless steels with high corrosion resistance are used. Also operation over-pressures up to 800 bar are possible. The standard series include 6 sizes with transfer surfaces up to 150m2.
A Tube bundle heat exchanger for cooling a medium having a high inlet temperature. Toward the inlet chamber, the annular spaces open into an intermediate chamber limited by the inlet tube bottom and the intermediate tube bottom; in the opposite direction, the annular spaces open into a deflecting or reversing chamber sealingly covering the insert tubes.
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