Difference between revisions of "Regenerative Desiccant Dryers"

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==Types of Dryers==
==Types of Dryers==
While  manual desiccant dryers exist, many dryers are regenerative desiccant  dryers, as noted in the Plant Services magazine article, "The Economics  of Operating Regenerative Desiccant Dryers," by Noel Corral and Andrew  Sheaffer.
While  manual desiccant dryers exist, many dryers are regenerative desiccant  dryers.




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==Classification==
==Classification==
There are different types of regenerative desiccant compressed air dryers. These are:
There are different types of regenerative desiccant compressed air dryers. These are:
* Small Heatless Desiccant Air Dryers
* Small Heatless Desiccant Air Dryers
* Large Heatless Desiccant Air Dryers
* Large Heatless Desiccant Air Dryers
* Compact Heatless Desiccant Air Dryers
* Compact Heatless Desiccant Air Dryers
* Mini Heatless Desiccant Air Dryers
* Mini Heatless Desiccant Air Dryers
==Small Heatless Desiccant Air Dryers==
Using  Pressure Swing Adsorption (PSA) technology, the Twin Tower Engineering  regenerative air dryers are designed to maximize the efficiency of the  drying process. Ultra-Dry compressed air dew points of -40°F to better  than -100°F can be achieved.
==Large Heatless Desiccant Air Dryers==
Engineered  for long service life and superior protection of your air-operated  equipment and processes. THL series heatless regenerative desiccant  compressed air dryers deliver the peace of mind of high quality, value  and fast delivery.
==Compact Heatless Desiccant Air Dryers==
Economical  and compact, these heatless desiccant compressed air dryers provide low  dew points to -100°F ADP(atmospheric dew point). This proven  "no-frills" design uses Pressure Swing Adsorption (PSA) technology and  will provide years of trouble-free service.
==Mini Heatless Desiccant Air Dryers==
Ultra-small  desiccant compressed air dryers can be used for low-flow applications  or with fractional horsepower air compressors. These units are heatless  regenerative desiccant air dryers designed to produce low dew points.  Extremely small footprint allows for packaging inside equipment cabinets  or at point-of-use.




==Video==
==Video==
<youtube>EuOH0slYqbc</youtube>
<youtube>EuOH0slYqbc</youtube>

Latest revision as of 04:48, 2 August 2012


Regenerative Desiccant Dryers
Regenerative Desiccant Dryer Principle

The Regenerative Desiccant Dryers are used for drying air in storage tanks or pneumatic systems and are beneficial in the drying of hygroscopic (water-absorbing) resins. These dryers remove water from the air by passing it through a desiccant that absorbs moisture.

Features

The Regenerative Desiccant Dryers consist mainly of two cylinders containing desiccant, connected by a valve system.


Operation

When the desiccant in the first cylinder is saturated, the air flow can be switched to the cylinder containing the dried desiccant.


Dessicant Types

Common desiccants are silica gel (an oxide of silica), alumina (aluminum oxide) and calcium sulfate (the anhydrous form of gypsum).


Types of Dryers

While manual desiccant dryers exist, many dryers are regenerative desiccant dryers.


Most Expensive

Heatless regenerative desiccant dryers run a portion of dried compressed air through the previously utilized cylinder to extract moisture from its desiccant.


Least Expensive

Heated purge regenerative desiccant air dryers use less air than the heatless variety in addition to heat, which helps the air carry away more water as it passes through the saturated desiccant.


Best Compromise

Heated blower purge regenerative desiccant air dryers use air from outside the dryer that is heated and sent through the water-saturated desiccant for drying.


Classification

There are different types of regenerative desiccant compressed air dryers. These are:

  • Small Heatless Desiccant Air Dryers
  • Large Heatless Desiccant Air Dryers
  • Compact Heatless Desiccant Air Dryers
  • Mini Heatless Desiccant Air Dryers


Video