Difference between revisions of "Regens"

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The '''Regens''' 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.
The '''Regens''' are used for drying air in  [[Storage Tanks]] or [[Pneumatic Conveying 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==
==Features==
The Regens consist mainly of two cylinders containing desiccant, connected by a valve system.
The Regens consist mainly of two cylinders containing desiccant, connected by a valve system.


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


==Dessicant Types==
==Dessicant Types==
Common  desiccants are silica gel (an oxide of silica), alumina (aluminum   oxide) and calcium sulfate (the anhydrous form of gypsum).
Common  desiccants are silica gel (an oxide of silica), alumina (aluminum oxide) and calcium sulfate (the anhydrous form of gypsum).
 
==Costs==
===Most Expensive===
Heatless Regens run a portion of dried compressed air through the previously utilized cylinder to extract moisture from its  desiccant.
 
===Least Expensive===
Heated purge regenerative Regens 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.


==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 Regens," by Noel Corral and Andrew  Sheaffer.


==Most Expensive==
===Best Compromise===
Heatless  Regens run a portion of dried compressed air  through the previously utilized cylinder to extract moisture from its  desiccant.
Heated blower purge regenerative Regens use air from outside the dryer   that is heated and sent through the water-saturated desiccant for drying.


==Least Expensive==
Heated purge  regenerative Regens 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 Regens use air from outside the dryer  that is heated and sent through the water-saturated desiccant for  drying.


==Classification==
==Types==
There are different types of regenerative regens. These are:
There are different types of regenerative regens. These are:
* Small Heatless Regens
* Small Heatless Regens
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* DBP Desiccant Regenerative Blower Purge Dryer
* DBP Desiccant Regenerative Blower Purge Dryer


==Small Heatless Regens==
===Small Heatless Regens===
[[File:Hrglam02.jpg|thumb|right|100px|Small Heatless Regens]]
[[File:Small_Heatless_Regens.jpg|thumb|right|200px|Small Heatless Regens]]
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.
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 Regens==
===Large Heatless Regens===
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.
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 Regens==
===Compact Heatless Regens===
[[File:Vsagroup.gif|thumb|right|100px|Compact Heatless Regens]]
[[File:Compact_Heatless_Regens.gif|thumb|right|200px|Compact Heatless Regens]]
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.
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 Regens==
===Mini Heatless Regens===
[[File:Mdh_group_174h.jpg|thumb|right|100px|Mini Heatless Regens]]
[[File:Mini_Heatless_Regens.jpg|thumb|right|200px|Mini Heatless Regens]]
Ultra-small  desiccant compressed air dryers can be used for low-flow applications  or with fractional horsepower air compressors. These units are heatless  regenerative Regens designed to produce low dew points.  Extremely small footprint allows for packaging inside equipment  cabinets  or at point-of-use.
Ultra-small  desiccant compressed air dryers can be used for low-flow applications  or with fractional horsepower air compressors. These units are heatless  regenerative Regens designed to produce low dew points.  Extremely small footprint allows for packaging inside equipment  cabinets  or at point-of-use.


==DMD Desiccant Modular Dryer==
===DMD Desiccant Modular Dryer===
[[File:PIC_DMD30_lrg.jpg|thumb|right|100px|DMD Desiccant Modular Dryer]]
[[File:DMD_Desiccant_Modular_Dryer.jpg|thumb|right|200px|DMD Desiccant Modular Dryer]]
The  Sullair DMD series is a lightweight modular desiccant dryer that  offers  unsurpassed installation flexibility. This lightweight modular  dryer  design brings a whole new concept in compressed air technology  offering  total installation flexibility to meet your specific needs. A  small  amount of the dried compressed air is used to regenerate the  saturated  desiccant bed by expanding air from line pressure to  atmospheric  pressure, removing the moisture absorbed by the desiccant  material.  Protection is built-in. Extruded aluminum housings that  surround the  dryers are fully protected from corrosion.
The  Sullair DMD series is a lightweight modular [[Desiccant Dryers|Desiccant dryer]] that  offers  unsurpassed installation flexibility. This lightweight modular  dryer  design brings a whole new concept in compressed air technology  offering  total installation flexibility to meet your specific needs. A  small  amount of the dried compressed air is used to regenerate the  saturated  desiccant bed by expanding air from line pressure to  atmospheric  pressure, removing the moisture absorbed by the desiccant  material.  Protection is built-in. Extruded aluminum housings that  surround the  dryers are fully protected from corrosion.


==DHL Desiccant Heatless Dryer==
===DHL Desiccant Heatless Dryer===
[[File:PIC_DHL600_lrg.jpg|thumb|right|100px|DHL Desiccant Heatless Dryer]]
[[File:DHL_Desiccant_Heatless_Dryer.jpg|thumb|right|200px|DHL Desiccant Heatless Dryer]]
The   dual tower design of the DHL series dryers allows for continuous   absorption of water from compressed air by using a desiccant bed. Drying  is accomplished by passing wet compressed air through the desiccant  bed  of one tower where moisture is absorbed. Regeneration of the  desiccant  is accomplished without the use of heat. The wet bed is dried  by  diverting a small amount of dry air from the outlet at near  atmospheric  pressure. The purge flow rate is adjustable to suit the  desired dew  point. The dry air flows in a counter direction through the  wet bed,  sweeping all the water vapor previously absorbed by the  desiccant.
The dual tower design of the DHL series dryers allows for continuous absorption of water from compressed air by using a desiccant bed. Drying  is accomplished by passing wet compressed air through the desiccant  bed  of one tower where moisture is absorbed. Regeneration of the  desiccant  is accomplished without the use of heat. The wet bed is dried  by  diverting a small amount of dry air from the outlet at near  atmospheric  pressure. The purge flow rate is adjustable to suit the  desired dew  point. The dry air flows in a counter direction through the  wet bed,  sweeping all the water vapor previously absorbed by the  desiccant.


==DEX Desiccant Externally Heated Dryer==
===DEX Desiccant Externally Heated Dryer===
[[File:PIC_DEX400_lrg.jpg|thumb|right|100px|DEX Desiccant Externally Heated Dryer]]
[[File:DEX_Desiccant_Externally_Heated_Dryer.jpg|thumb|right|200px|DEX Desiccant Externally Heated Dryer]]
The  dual tower design of the DEX dryers allows for continuous absorption  of  water from compressed air by using a desiccant. Drying is  accomplished  by passing wet compressed air through the desiccant bed of  one of the  towers where moisture is absorbed. Regeneration of the  desiccant is  accomplished with the use of a low watt density heater.  The heated air  has a greater affinity to absorb moisture. When passed  through the  regenerating tower at near ambient pressure, the heated air  flows in a  counter direction through the wet bed, removing moisture  previously  absorbed by the desiccant.
The  dual tower design of the DEX dryers allows for continuous absorption  of  water from compressed air by using a desiccant. Drying is  accomplished  by passing wet compressed air through the desiccant bed of  one of the  towers where moisture is absorbed. Regeneration of the  desiccant is  accomplished with the use of a low watt density heater.  The heated air  has a greater affinity to absorb moisture. When passed  through the  regenerating tower at near ambient pressure, the heated air  flows in a  counter direction through the wet bed, removing moisture  previously  absorbed by the desiccant.


==DBP Desiccant Regenerative Blower Purge Dryer==
===DBP Desiccant Regenerative Blower Purge Dryer===
[[File:PIC_DBP1000_lrg.jpg|thumb|right|100px|DBP Desiccant Regenerative Blower Purge Dryer]]
[[File:DBP_Desiccant_Regenerative_Blower_Purge_Dryer.jpg|thumb|right|200px|DBP Desiccant Regenerative Blower Purge Dryer]]
The  dual tower design of the DBP, blower purge dryer, allows for  continuous  absorption of water from compressed air by using a  desiccant. Drying is  accomplished by passing wet compressed air through  the desiccant bed of  one of the towers where moisture is absorbed.  Regeneration of the  desiccant is accomplished using a blower to pass  ambient air through a  low watt density heater because heated air has a  greater affinity to  absorb moisture. When passed through the  regenerating tower at near  ambient pressure, the heated air flows  through the wet bed, removing  water vapor previously absorbed by the  desiccant.
The  dual tower design of the DBP, blower purge dryer, allows for  continuous  absorption of water from compressed air by using a  desiccant. Drying is  accomplished by passing wet compressed air through  the desiccant bed of  one of the towers where moisture is absorbed.  Regeneration of the  desiccant is accomplished using a blower to pass  ambient air through a  low watt density heater because heated air has a  greater affinity to  absorb moisture. When passed through the  regenerating tower at near  ambient pressure, the heated air flows  through the wet bed, removing  water vapor previously absorbed by the  desiccant.

Revision as of 01:30, 25 July 2012


The Regens are used for drying air in Storage Tanks or Pneumatic Conveying 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 Regens 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).

Costs

Most Expensive

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

Least Expensive

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


Types

There are different types of regenerative regens. These are:

  • Small Heatless Regens
  • Large Heatless Regens
  • Compact Heatless Regens
  • Mini Heatless Regens
  • DMD Desiccant Modular Dryer
  • DHL Desiccant Heatless Dryer
  • DEX Desiccant Externally Heated Dryer
  • DBP Desiccant Regenerative Blower Purge Dryer

Small Heatless Regens

Small Heatless Regens

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 Regens

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 Regens

Compact Heatless Regens

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 Regens

Mini Heatless Regens

Ultra-small desiccant compressed air dryers can be used for low-flow applications or with fractional horsepower air compressors. These units are heatless regenerative Regens designed to produce low dew points. Extremely small footprint allows for packaging inside equipment cabinets or at point-of-use.

DMD Desiccant Modular Dryer

DMD Desiccant Modular Dryer

The Sullair DMD series is a lightweight modular Desiccant dryer that offers unsurpassed installation flexibility. This lightweight modular dryer design brings a whole new concept in compressed air technology offering total installation flexibility to meet your specific needs. A small amount of the dried compressed air is used to regenerate the saturated desiccant bed by expanding air from line pressure to atmospheric pressure, removing the moisture absorbed by the desiccant material. Protection is built-in. Extruded aluminum housings that surround the dryers are fully protected from corrosion.

DHL Desiccant Heatless Dryer

DHL Desiccant Heatless Dryer

The dual tower design of the DHL series dryers allows for continuous absorption of water from compressed air by using a desiccant bed. Drying is accomplished by passing wet compressed air through the desiccant bed of one tower where moisture is absorbed. Regeneration of the desiccant is accomplished without the use of heat. The wet bed is dried by diverting a small amount of dry air from the outlet at near atmospheric pressure. The purge flow rate is adjustable to suit the desired dew point. The dry air flows in a counter direction through the wet bed, sweeping all the water vapor previously absorbed by the desiccant.

DEX Desiccant Externally Heated Dryer

DEX Desiccant Externally Heated Dryer

The dual tower design of the DEX dryers allows for continuous absorption of water from compressed air by using a desiccant. Drying is accomplished by passing wet compressed air through the desiccant bed of one of the towers where moisture is absorbed. Regeneration of the desiccant is accomplished with the use of a low watt density heater. The heated air has a greater affinity to absorb moisture. When passed through the regenerating tower at near ambient pressure, the heated air flows in a counter direction through the wet bed, removing moisture previously absorbed by the desiccant.

DBP Desiccant Regenerative Blower Purge Dryer

DBP Desiccant Regenerative Blower Purge Dryer

The dual tower design of the DBP, blower purge dryer, allows for continuous absorption of water from compressed air by using a desiccant. Drying is accomplished by passing wet compressed air through the desiccant bed of one of the towers where moisture is absorbed. Regeneration of the desiccant is accomplished using a blower to pass ambient air through a low watt density heater because heated air has a greater affinity to absorb moisture. When passed through the regenerating tower at near ambient pressure, the heated air flows through the wet bed, removing water vapor previously absorbed by the desiccant.