1 . TUBE BUNDLES :
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TUBE BUNDLE is the most vulnerable part of any Heat Exchanger. It gets
ineffective / damaged due to a variety reasons – scale deposition, corrosion,
thermal stress, etc. and has to be replaced at regular intervals, particularly where
thin-walled copper or copper alloy tubes are used.
We manufacture REPLACEMENT TUBE BUNDLES of Heat Exchangers used in
(a) Utilities –intercoolers, after coolers, oil coolers for Air / Gas Compressors,
DG Sets, Air Dryers, Gas Generators, etc. (b) Production – as quench oil
cooler, circulating oil cooler, etc.
In order to get a perfect retrofit, it is essential make a detailed dimensional
sketch of the Tube Bundle before getting it manufactured.
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2. SHELL & TUBE HEAT EXCHANGERS :
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Here fluids such as compressed air, oil and other gases / liquids are cooled by water, brine and other cooling media. The heat exchanger design, type & configuration is decided by specific process requirements. Wherever there is any condensation due to cooling, a Separator is provided from which the condensate is periodically drained by manual or auto drain valve. |
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3. COMPRESSED AIR CHILLER DRYER : |
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Compressed air can be dried (i.e. its moisture reduced) by cooling, because its
moisture holding capacity reduces at lower temperature. The Compressed Air
Chiller Dryer uses cooling media which are available in the plant e.g. chilled
water.
The incoming air is first precooled in the Precooler by the outgoing cold air
before it being cooled further in the Chiller. Moisture condensing out due to
cooling is removed by a high efficiency Moisture Separator and drained out by an
Auto Drain Valve.
Compressed air temp at outlet of Chiller is its dew point.
The dryness of air obtained by the Chiller Dryer is suitable for most compressed
air applications in a tropical country like India.
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4. PSA OXYGEN GENERATOR :
Dry & oil-free compressed air from the Compressed Air System is first stored in
the Dry Air Receiver from where it enters the PSA System. Here the nitrogen is
adsorbed by the Zeolite Molecular Sieves and oxygen comes out as a product
gas. The O2 enters the Surge Vessel where its purity is stabilized. Necessary
measurement and control devices are incorporated to make the O2 Generator
fully automatic system.
O2 from this type of Oxygen Generator has a purity of upto 95%. Typical
applications are : Brazing, feed gas for Ozone Generators, Hospital Ventilators,
Effluent Treatment Plants, Fisheries, etc.
5. DEW POINT MEASUREMENT SYSTEM :
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When air is cooled, the temp at which condensation takes place is termed the
Dew Point (DP). A simple method of determining the DP is to cool the air around a
highly polished surface and cooling it. When the DP is reached, condensation on
this surface makes it cloudy and the temp observed at this point is the DP. In our
Dew Point Measurement System, cooling is done by dry ice ( solid CO2) in a
polished tube and temp is measured by a Digital Temp Indicator. This system can
be used whenever periodic checking of dew point is required.
For continuous, online measurement system, the DP is determined by measuring
change in capacitance of special sensor placed in the air stream. This change is
transmitted to a device which displays the DP directly. This System is very
expensive and is generally installed in Air Dryers for critical applications.
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