Hairpin Heat Exchangers

Hairpin Heat Exchangers

Application of Hairpin Heat exchangers:
These Exchangers are a modification of a typical Shell & Tube Heat Exchangers such that a long single Shell pass Multi Tube Shell & Tube Heat Exchanger is half folded into U-shape resembling a Hair Pin profile.
There Exchangers are used,
* For lower and Medium Heat Duties.
* To accommodate higher Temperature cross using single pass cross flow pattern.
* To accommodate low allowableshell side pressure-drop.
* To accommodate large Temperature difference.
* For Higher pressures.

Design and Constructional Features
While the Shell and Bundle resemble the configuration of a Shell & Tube Heat Exchanger, the Closures are of typical construction enabling the removal of U-Tube Bundle out side of Shell for Cleaning and maintenance.
Thermal Design and Rating of the Exchangers isin accordance with Licensed HTRI-USA methods. Mechanical Designs are in accordance with International and National Codes and Standards such as ASME Section VIII Div 1&2, TEMA, API 663 as well as to the specific project specifications.
Tubes are generally plain. However, longitudinal Fins are used in special circumstances.
Materials of construction include Carbon Steels, Low Alloy Steels, High Alloy Stainless Steels, etc. as per the fluid conditions handled in the Exchangers
More often, these are typical Custom-built rather than Standard units of Fabricated Equipment used in Process plants for Heat Transfer applications involving Heating, Cooling and related operations.

PECPL Capabilities

All the Design & Engineering and Work Shop facilities at PECPL as in the case of Shell & Tube heat Exchangers are well suitable for this product also. These Exchangers are often taken up as Special Product in addition to conventional Shell & Tube Heat exchangers.