Plate heat exchanger in auxiliary and utility systems

In addition to many process-specific duties, GESMEX supplies plate heat exchangers across all industries as reliable heaters and coolers in utility and auxiliary systems. These are applications such as, heating process water, and cooling oil or drying compressed air. Through the direct application of heat transfer, jackets can be cooled and drain trays can be heated. In more specific applications, e.g. as for surface treatment such as electropolishing, it is about the cooling of baths, or about steam drying surfaces.

The following examples show the experience of GESMEX in these areas:

Steam heating

Steam heaters in utility and auxiliary systems heat process water, or cleaning solvents, or other media that are required during production. They are mainly used in systems, where steam is already available and can be used, cost effectively, as a heating medium.

XPS - Plate & Shell heat exchangers are effective condensers. Therefore the units are very compact and have short response times. During operation with clean media there is no maintenance over the life time of the heat exchangers.

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Example:
 Steam heater for heating a cleaning solution

Type:
Plate & Shell, XPS 50
Variant:
countercurrent flow, fully welded
Features:
with stainless steel shell for installation in hygienic plants
Installation site:
Netherlands





Oil cooling

Oil coolers remove the heat from lubrication of bearings, and other frictional heat from the engine to the outside.

XPS - Plate & Shell heat exchangers are used in industrial plants, when less pressure and temperature resistant heat exchangers such as brazed or gasketed plate heat exchangers are considered insufficient due to the lower integrity, for such critical duties.

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Example:
 Oil cooler in a gas engine power plant

Type:
Plate & Shell, XPS 50
Variant:
countercurrent flow, fully welded
Features:
with plate- and shell side deflections to increase the thermal length
Installation site:
Belgium







Immersion bath cooling

At immersion bath cooling the cooling surfaces are directly built in the cooling bath. The bath contents can be heated or cooled as stagnant medium or the bath content is circulated via an external pump.

XPT - Thermo Plate heat exchanger can be built as an open battery and and fit into the dimensions of the container. The heat transfer surfaces are accessible for inspection and cleaning from all sides.

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Example:
 Water bath cooler in an operation for surface treatment

Type:
Thermoplate XPT
Variant:
Thermoplates as plate battery
Features:
freely selectable plate distances
Installation site:
Denmark


Jacket cooling

By applying a heat transfer area from the outside walls of tanks, storage or stirring vessels are used as a direct cooling surface. This type of cooling is used when for cooling surfaces is not enough space in the container or they should be avoided for other reasons.

XPT - Thermo Plate heat exchangers can be welded directly onto the outer surface, or they are built on as separate elements and clamped. In both cases, the transfer surfaces are adapted to the jacket contour individually.

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Example:
 Tank with externally applied cooling surfaces

Type:
Thermoplate, XPT
Features:
consisting of a thicker plate inside and a thinner plate outside
Installation site:
Netherlands





Compressed air drying

Compressed air dryers cool down compressed air in order to condense the water vapor brought in from ambient, and drain it from the compressed air system. The units can be operated with cooling media such as water or, with a compressed air refrigeration dryer, with refrigerants.

XPS - Plate & Shell heat exchangers are effective coolers and condensers. The cylindrical shell allows, besides the condensation of water vapor, the separation of air from the condensate in one heat exchanger, by leading the media out via separate nozzles.

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Example:
 Compressed air dryer

Type:
Plate & Shell, XPS 50
Variant:
countercurrent flow, openable
Features:
with condensate collector and separate outlet for dry air and condensate
Installation site:
Germany





Vapour-Phase-drying

Vapour-phase drying is a process in which steam is in direct contact to the components to be dried. While contaminants such as oil are washed out, also a cleaning effect occurs. To increase the cleaning action, solvents such as kerosene are used in the steam cycle. In order to avoid damage to sensitive components, the process takes place at lower temperatures and under vacuum.

XPS - Plate & Shell heat exchangers are very effective evaporators, and well suited for the use under vacuum due to their short length. The design allows the installation on a slope, additional drain nozzles for non-volatile component contaminants, and an eccentric shell is utilized to increase the steam room.

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Example:
 Kerosene evaporator under vacuum

Type:
Plate & Shell, XPS 100
Variant:
fully welded, eccentrical shell
Features:
orientation with a slope to drain oil residues
Installation site:
Russia





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XPS

XPS – Plate & Shell heat exchangers are highly suitable for heat transfer between liquids and gases or for evaporation and condensation duties. The gasket-free and cylindrical design allows operating pressures from full vacuum to 400bar and temperatures ranging from -200 to 500°C.

XPT

XPT – Thermoplate heat exchangers can handle dirty media and show low pressure drop even with high volume flows. The all welded plate-pairs are used from vacuum to 60 bar and from -200 to 800 °C.