Water Injection Wfi-Multi Effect Water Distiller LDS
series Multi-effect water distiller adopted the purified water as
the feed water, produced WFI by heating industrial steam. The
product satisfies the requirement of CGMP (CP2010), USP34 and
EP7. Working PrincipleThe qualified feed water is input into
the condenser after increased the pressure by multilevel pump. And
then enters into each preheater (the feed water will be heated by
the secondary steam and distilled water in the condenser, in the
fist stage preheater, the feed water heated by the industrial steam
condensate water, after enters the other stages preheater, it is
heated by the secondary steam condensate water). Next the feed
water is input into the water distributor of the 1st stage
evaporator, which is spouted to the inside of the heating tubes and
flowed as film. The produced second steam with drips enters into
the gas and steam separating setting from the bottom of the heating
tubes. The separated pure steam enters into the next stage as
heating steam, meanwhile, the feed water, which is not evaporated,
enters into the next stage. And then it is repeated above mentioned
process. The pure steam from last stage is converged with each
stage condensed water (except 1st stage), after cooling and
drainage of the non-condensable gas, (according to different model,
there should be a device for discharge the non-condensable gas
continuously) it is became the WFI. There is an on-line
conductivity test at the output orifice, the qualified distilled
water will be output as the WFI, and the unqualified will be
discharged. Characteristic1. Structural form: External
preheater, condenser and the first effect evaporator are all double
tube plate designed.2. Separation device: the feed water enters the
equipment will under three stage separation that is film
evaporation, gravity separation and special separation device.3.
Material: The parts that contact with the feed water, WFI and
secondary steam should be all adopted with SS316L.4. Automatic
welding: For the connection of the pipeline and the spare parts,
use the arc to protect the automatic welding track, to ensure the
welding quality.5. Three-dimensional elbow: Making stainless steel
pipe directly tensile bend in the pipeline as far as possible,
avoid welding.6. Insulation: Both the separator and preheater are
adopted with glass fiber needle wire mat, which is a new type
thermal insulation material. The insulation effect is 30 times of
the common insulation material.7. Surface treatment: We use
electro-chemical polish to the interior and the exterior surface,
to effectively guarantee the finish of the surface of the stainless
steel. We can also use sandblasting process to the exterior
surface.8. Energy saving: Multi-effect water distiller has a high
utilization of the industrial steam because the secondary steam is
used in each effect. which has a significant energy saving effect.
This energy saving is obviously with the increase of the mummer of
effect evaporators, at the same time, the amount of the cooling
water is substantially reduced. The five-stage effect water
distiller of our company only use little cooling water, while the
six-stage effect water distiller doesn't need cooling
water.Technical Parameter S/NItem Description
LDS50-4LDS300-5
LDS500-41Capacity(L/h)≥50≥300≥5002Industrial steam
consumption(L/h)30801503Feed water
consumption(L/h)1103305504Cooling water
consumption(L/h)801705505Dimensions(mm)1065×540×19001610×650×23001540×770×3150 Company
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