applications
general heating and cooling duties. heating by means of
steam.
standard design
the plate heat exchanger consists of a pack of corrugated
metal plates with portholes for the passage of the two fluids
between which heat transfer will take place.
the plate pack is assembled between a fix frame plate and
a movable pressure plate and compressed by tightening bolts.
the plates are fitted with a gasket which seals theinterplate
channel and directs the fluids into alternate channels. the
number of plates is determined by the flow rate, physical
properties of the fluids, pressure drop andtemperatureprogram.
the plate corrugations promote fluid turbulence and
support the plates against differential pressure.
the plate and the pressure plate are suspended from an
upper carrying bar and located by a lower guiding bar, both
of which are fixed to a support column.
connections are located in the frame plate or, if eitherorboth
fluids make more than a single pass within the unit, in the
frame and pressure plates.
typical capacities
liquid flow rate
up to 4 kg/s (60 gpm), depending on media, permitted
pressure drop and temperature program.
water heating by steam
50 to 250 kw
plate types
m3 and m3-x, where m3 provides parallel and
m3-x diagonal flow (see figures on the next page).
m3d, double wall plates.
frame types
fg
60 (2.36)
180 (7.09)
480 (18.9)
62 (2.44) 357 (14.06)
632 (24.9)
pct00114en 0905
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working principle
channels are formed between the plates and the corner ports
are arranged so that the two media flow through alternate
channels. the heat is transferred through the plate between
the channels, and complete counter-current flow is created
for highest possible efficiency. the corrugation of theplates
provides the passage between the plates, supports each
plate against the adjacent one and enhances the turbulence,
resulting in efficient heat transfer.
standard materials
frame plate
mild steel, epoxy painted
nozzles
carbon steel
pipe: alloy 316, titanium
plates
stainless steel: aisi 316 or titanium
gaskets
m3 nitrile, epdm, heatsealf™
m3x nitrile, epdm, viton®
m3d nitrile, epdm
technical data
pressure vessel codes, ped, asme, pvcals™
mechanical design pressure (g) / temperature
fg ped, pvcals™ 1.6 mpa / 180°c
fg asme 150 psig / 350°f
connections
fg ped size 1¼ pipe, thread iso-r 1¼
fg pvcals™ size 1¼ pipe, thread iso-r1¼
fg pvcals™ size 1¼ internal thread iso-g 1¼,
carbon steel
fg asme size 1¼ pipe, thread npt 1¼
maximum heat transfer surface
3.9 m2 (40 sq. ft)
dimensions
measurements mm (inch)
the number of bolts may vary depending on pressure rating.
flow principle of an m3-x
plate heat exchanger
flow principle of an m3
plate heat exchanger
particulars required for quotation
– flow rates or heat load
– temperature program
– physical properties of liquids in question (if not water)
– desired working pressure
– maximum permitted pressure drop
– available steam pressure

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上海朗勋机电设备有限公司
王超
13661686754
上海市徐汇区桂林东街28弄海上名邸6号902室