Spiral heat exchangers, thin film evaporators, wiped film evaporators, short path evaporators, film evaporators, vacuum distillation, mixers, dryers- Gooch Thermal Systems.

SPIRAL HEAT EXCHANGERS IN PULP & PAPER
+++ 70 years and still going strong +++

Spiral Heat Exchangers designed and built by Gooch Thermal Systems come in many shapes and forms, but they have one thing in common - our expertise in heat transfer and in-depth knowledge of their mechanical design assure our clients with optimum reliability!

Ever since the first units were delivered by Rosenblads to Scandinavian pulp & paper mills in early 1930's, the Type 1 spiral heat exchanger with spiral flow on both sides has been the most popular execution for liquid-to-liquid services, particularly when fouling or presence of solids and fibers increases the risk of blockage and down-time.

The horizontal Type 1 (picture) is mounted on saddles and has two removable covers. Alternate channels are seal welded at the edge assuring complete separation of the fluids from each other with no interleakage or cross contamination. The covers (with optional hinges) allow independent and easy access to both the hot and cold side flow passages should cleaning be necessary, even in tight spaces.

Installed at a North American pulp & paper mill for cooling high temperature condensate from pulp dryers by pre-heating mill water, the spiral heat exchanger fulfills a dual purpose for our client: As a condensate cooler that reduces downstream flashing risks and as a heat recovery exchanger that saves them steam and energy. Wetted parts are made of 316/316L SS. Due to tight space limitation, spiral channel geometry was optimized by GTS for efficient heat transfer, optimum accessibility and minimal installation space. Due to its compactness, the entire required heat transfer area is packed within a 72" x 60" footprint (1800 x 1500mm).

For potential spiral heat exchanger applications in pulp & paper or other process services where fouling or particulate-laden process fluids, slurries and/or suspensions are being heated or cooled, please contact GTS or fax us the completed Spiral Heat Exchanger Design Questionnaire in Information Downloads.