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 Plate Heat Exchangers

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GASKETED PLATE HEAT EXCHANGERS 

 

The Standard Construction

In a Gasketed Plate Heat Exchanger (frame & plate heat exchanger), the plates are fitted with elastomeric gaskets which seal the channels and direct the fluids into alternate channels. 

The plate pack is assembled between a frame plate and a pressure plate, and compressed by tightening bolts fitted between these plates. The channel plates and the pressure plate are suspended from an upper carrying bar and located by a lower guiding bar, both of which are fixed to the support column. The physical design of the gasketed plate heat exchanger allows easy cleaning and modification of capacity by addition or removal of plates.

The most commonly used plate material is stainless steel AISI 316. Titanium plates are used for media containing chlorides e.g. sea water. Exotic materials such as Hastalloy, Incoloy and graphite are available for chemical processing duties. The thickness of plates is normally in the range of 0.4 - 0.7 mm.

The connections for media inlet and outlet can be located on the frame or on the pressure plate. Various channel plates styles are available, corrugated in different patterns, suitable for a large number of fluids and a wide range of thermal duties.

 

Principle of operation

The fluids taking part in the heat transfer process are introduced through the connections to the Heat Exchanger. The gaskets, fixed in a special way, provide the fluids distribution to the proper channels, excluding the possibility of mixing the flows. The plate corrugation type and channel configuration is selected according to the required duties, and it ensures the optimal conditions for the heat exchange process.

Technical Data:

Gasketed PHE type M3 M6 M6M M10B M10M M15B M15F M20 M30
Max. fluids flow rate, kg per sec 3,8 15 15 50 50 60 80 250 500
Max. heat transfer area, m2 3,9 38 38 105 62 295 390 940 1335
Max. operating temperature, 130 130 160 150 160 160 160 150 150
Max. operating pressure depending on the frame type, MPa 1-1,6 1-2,5 1-2,5 1-2,5 1-2,5 1-2,5 1-2,5 1-2,5 1-2,5

The range of Alfa Laval heat exchangers is not limited to the units types mentioned in this table.

 

Standard sizes:

The conventional Plate Heat Exchanger design .

 

Sizes A B C D E F The size of connection 
pipes according to DIN
M3 180 60 480 357 62 204-500 32
M6 320 140 920 640 140 580-1430 50
M6M 320 140 920 640 140 580-1430 50
M10B 470 225 981 719 131 710-2310 100
M10M 470 225 981 719 131 710-2310 100
M15B 650 298 1815 1294 275 1170-3270 150
M15F 650 298 1815 1294 275 1170-3270 150
M20 920 439 2895 1939 435 1585-3385 200
M30 1150 596 228 1842 470 1595-5195 300

 

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 THE GASKETED PLATE HEAT EXCHANGERS

 

 

 

 

 

 


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