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Coalescing Filter Elements
filters are used for separation of higher grade, as compared with other
purification and filtration systems. These filter elements can reduce the
concentration of oils, aerosol-type liquid in a gaseous medium to a level of 0,003
ppm, and ensure the removal of 99.99% of solid microparticles.
NEW FILTER delivers coalescence filters
PALL, which uses a unique filter material cartridges and special design that
allows you to work with the increased load, cycling less cartridges in the
presents data in both vertical and horizontal design. AquaSep® type systems are
used for separation (liquid / liquid), and a series PhaseSep can serve as a
coalescer type (liquid / gas).
configuration of coalescer.
The liquid comes out the bottom
left, and the purified medium to the right.
configuration of coalescer.
from impurities phase goes from the top to the right and removed the dirt right
from the bottom.
What does coalescing filter for?
Coalescers are designed for ultra-clean
gaseous and liquid media from the droplet, mechanical fractions. Moisture
condensation formed by spraying due to obstacles in the gas stream. The body
design of the product is non-regenarated replaceable cartridge. It is effective
as the second stage of filtration elements after the cyclone.
Highly efficient coalescence filters (gas /
liquid) medium ensures removal of the liquid droplet size of 0.1 micrometers,
and also provide a small pressure differences on the filter element.
The advantage of using coalescer - is high
speed flow without repeated removal drops.
Cleaning the gaseous medium from the liquid
impurities in the coalescer is due to the ability of the filter media to
connect liquid aerosol smallest size (0.3 microns) to larger ones. Thus there
is a further accumulation and removing them through the drainage system.
Coalescing filter: working principle
processes in the diagram:
particles are removed by the filter material.
- Little drops
of water coalesce into larger passing through the filter layers coalescer.
- Under the
influence of gravitational fields of large drops separated and deposited.
Coalescer principle of operation is as
follows: the incoming flow passes through the coalescing unit - thin-layer
corrugated plate, resembling a honeycomb. This material provides sintering
petroleum oil in the beads and repels water. As a result, moisture is separated
from the oil.
When enlarging droplets increases their
speed ascent to the surface. Due to the inclined corrugated plates provide
maximum contact between the cleaning medium with a modulus that promotes
intense increase in particle size.
Then, the separated oil particles float
upwards, forming a layer on the water surface. When it flows through the module
creates a vibration, resulting in oil spills float and suspended solids settle.
Used filter elements should be replaced
with oil pollution. replacement frequency depends on the initial level of
contamination of waste water.
Technical characteristics of the gas
- efficiency of gas filtration of liquid
drops - 95% -99.95% (depending on the type of the filter);
- filtration efficiency of the gas flow
from the solid fractions - 95% -99.95% (depending on the type of the filter);
- filtration efficiency gas medium from
liquid and solid contaminants larger than 1 micron - 98% -99.99%;
- volumetric efficiency: gas - up to 50
million m3 / day of liquid - up to 250 m3 / hour.
- residual volume of liquid and solid
particles in the purified gas stream - 1 mg / m3 or less;
- temperature: -70 °C min, max + 150 °C
(as solid particles) and to + 90 °C (liquid).
Important! In order to provide increased
strength at the maximum operating temperatures of calculated coalescer and its
use in hostile environments, it is recommended to install perforated metal
exterior frame. It is recommended to use a spring mounting of cartridges in the
lander place to provide the necessary seal.
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