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Externally heated desiccant dryer HRE
Category
Product accessories
Product details
MAIN FEATURES & BENEFITS
19 sizes available, matching to the compressor flow capacities.
Energy-efficient regeneration (desorption) in counter- current flow.
Applicable in all climate zones due to cooling with blower air (zero purge) running in circular flow (loop).
Pressure dewpoint of -40°C as standard,individual cases down to -70°C possible.
Robust design with welded steel vessels and fl anged pipelines.
Service-friendly design of butterfl y valves and pressure reducing valves for fast replacement of wearing parts .
Robust, effi cient programmable controller of the latest generation, for which service and support are guaranteed beyond the next decade.
Touch Panel with a high operational comfort;The main menu shows a system overview with theoperational data such as pressure, temperature, cycle of the vessels etc.
Comprehensive option package:dewpoint dependent capacity control,start-up-device,free of silicone and parting agents,bypass line,filterextension etc.
Suitable high-efficiency filters as pre- and afterfilter (option) ensure a low differential pressure for the complete unit and thus small operating costs.
INDUSTRIES
Chemical and electrical industry
Machine building industry and plant engineering / construction
Automotive industry
PRODUCT DESCRIPTION
The externally heat regenerated adsorption dry- ers HRE 0375-13600 work according to the dynamic adsorption principle. Wet compressed air streams through a desiccant bed. While streaming through, moisture is drawn out of the compressed air. Since the adsorption capacity of the desiccant is limited, the flow direction has to be changed be- fore the desiccant is completey saturated. Using two parallel adsorption vessels (adsorbers AD1 + AD2) with alternating function, the permanent sup- ply of dried air for consumers is guaranteed.One adsorber is always available for drying the compressed air. The second adsorber is regener- ated at the same time. The activation time respec- tively the regeneration time is always shorter than the loading time of the working adsorber.The re- generation of the saturated desiccant is realized in two steps:
1. Desorption in counter-current flow to the adsorption direction with externally heated blower air
2. Cooling of the heated desiccant with blower air running in circular flow (loop)
Typical applications for the adsorption dryers HRE are:
● Central compressed air purification
Generation of dry, oil-free and particulate-free compressed air (with option pre- and afterfilter)
● Point-of-use applications
Drying and purification of control and instru- ment and process air
● Automotive industry
Purification of compressed air for painting applications
PRODUCT SPECIFICATIONS
| Features: | Benefits: |
| 19 sizes available, matched to the compressor flow capacities | Custom made solutions possible, matching exactly customer's requirements; no oversizing of compressors necessary, due to no regeneration air requirements |
| Energy-efficient regeneration (desorption) in counter-current flow | Low desorption temperature, less energy consumption, no compressed air consumption (zero purge) |
| Cooling of the heated desiccant with blower air running in circular flow (loop) | Independent of ambient temperature and humidity, applicable in tropical environment,no compressed air consumption (zero pur- ge), if necessary also very low dewpoints (PDP -70°C) realizable |
| Welded steel vessels and flanged pipelines | Robust service-friendly design |
| Easy accessibility of all components.Service-friendly design of pressure reducing valves and butterfly valves (two-piece housings) | Fast replacement of wearing parts ensure low service and maintenance cost and reduced downtime |
| Programmable logic controller Simatic S7-1200 | Robust, efficient controller of the latest generation, custom made solutions possible |
| Touch Panel KTP700 | High operational comfort due to self-explaining menu. All operational data on one view. Indication of current dewpoint (option) and function status as well as alarm and service messages on the main menu ensures high operating safety of the adsorption dryer |
| Comprehensive option package: Dewpoint depending control, start-up device, free of silicone and parting agents, bypass, filter extension etc. |
Flexibility in application, well thought option package for economic operation and safe system installation in the compressed air network |
| Suitable high-efficiency filters as pre- and afterfilter available (option) | Low differential pressure of the complete unit and thus small operating costs |
| Ultraconomy version including dewpoint dependent capacity control (option) | Saving of energy and operational costs due to adaption of the adsorption cycle to the current operating conditions |
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