The plate heat exchanger is a
new efficient and compact heat exchanger that has
developed and extensively used in recent decades. It consists
of multiple parallel corrugated-surface thin metal sheets
that overlap and are then fixed by lamp plates and bolts. The
cold working fluid and the hot working fluid flow through the
narrow and winding passage made of two neighboring plates
alternately and realize cold and heat exchange through the plates
separating the two working fluids. The plate heat exchanger
consists essentially of heat transfer plates, gaskets and a
clamping device. Thanks to its structure and heat exchange
principle, it is characterized by compact structure, small floor
area, high heat transfer coefficient and operation flexibility,
wide application range, small heat loss, easy installation and
cleaning, etc. The two mediums have a mean temperature difference
as small as 1ºC and heat recovery efficiency higher than 99
percent. Based on the same pressure loss, the plate heat
exchanger has, compared with a tubular heat exchanger, a heat
transfer coefficient two to four times higher, a one-third floor
area and two-thirds metal consumption. It is therefore
an efficient and energy, material and investment saving
advanced heat exchanger. It is now widely used in industrial
fields such as chemical industry, petrochemical, food, machinery,
central heating, metallurgy, power, ships, paper-making, textile,
pharmaceutical industry, nuclear industry, seawater desalination
and combined heat and power generation to meet the requirements of
processes such as cooling, heating, condensation, concentration,
sterilization and residual heat recovery. It has become a
highly competitive product in the heat exchanger field or evenly
has replaced conventional tubular heat exchangers. With its
development, it will be used in more and more fields.
Plate and gasketThe plate materials and the gasket materials
mainly depend on the corrosive properties and temperatures of the
cold exchange medium and the heat exchange medium. The plate
heat exchanger's plate materials and corresponding applicable
places are given in Table 1 and its gasket materials and
corresponding applicable places in Table 2 for your reference.
Table 1 Plate Materials Material
nameThickness (mm)Material gradeApplicable placeStainless
steel0.5-0.8304,321,316,316LPlaces with serious corrosion caused by
acid or base mediums and places not suitable for chloride
ions Commercial pure titanium0.5-0.8TiAlkali or salt
making places, sea water desalination places, low-temperature
places, freezing places or places with chloride-ion
corrosionNickel0.5-0.8NiPlaces resistant to corrosion, hot alkali
liquor corrosion, neutral solutions or subacid
solutionsAcid-resistant
steel0.5-0.8RS-2, SM0254, HC-276Sulfuric acid field and
the fields with acid corrosionTable 2 Gasket
Materials Material nameCodeApplicable temperatureApplicable
placeNBRN-20~110ºCWater, non-polar oil, mineral oil, lubricating
oil, silicon oil, etc.EPDME-20~150ºCSteam, water, ozone, polar
chemical mediums, alcohol, weak acids, weak bases, salt solutions,
etc.Chloroprene rubberC-40~100ºCAmmonia, mineral roil,
lubricant, freon, etc.FluororubberF0~180ºCInorganic acids,
bases, mineral oil, halohydrocarbon and oxidantSilicon
rubberQ-40~200ºCFood field, etc. About Warranty:We promise 1
year guarantee, all reasonable relevant cost will be undertaken by
us in the first year if our heat exchanger fails to work due to
quality problem, only the free repairing operation
guide is available in the rest of the years via
E-mail /Fax/Phone Company profile:/* January 22, 2024 19:08:37
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