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Shini SHD - Honeycomb-Rotor Deterioration Phenomenon

Shini SHD
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Shini Group
Technology & Marketing Dept
Issued by department: Date: Language: Document Name: Revision: Page:
Shini/CSC-TM
2013-11 zh-cn Shini product repair manual.doc
1.0 19 (62)
Catalog:
template:Standard_CN.dot; filename: Shini product repair manual; Printdate: 8/1/2014 1:58:00 PM; savedate: 8/1/2014 1:58:00 PM
According to the stain composition, the rotor is immersed in water or solvent, for
example xylene. If the grease dirt, the rotor can be placed in the detergent PH
value of less than 7. PH value is too high will destroy silicone, shaking up and
down the rotor to clean the dirt for about four hours.
Remove the rotor from the solvent and placed vertically for five minutes so that
the outflow of inner solvent.
Use compressed air to blow out residual solvent in the pipe, soaked with water for
1 hour, then dry naturally for 12 hours.
Replace the rotor to machine, and running regeneration action (temperature of
150ā„ƒ) for at least 1 hour.
You must pay attention to the smell of the air will remain for some time if use
solvent cleaning. Some thin grease and other viscous dirt, is almost impossible to
clean, it must be replaced honeycomb. After cleaning the honeycomb, some
dehumidification effect will recover as ever, but usually the effect will be
weakened.
Honeycomb-rotor absorption efficiency can be maintained for a long time in the
case of good maintenance, but in order to you can still play a SD-H full function
after a few years, in permitting the replacement of Honeycomb effect is optimal.
5.5 Honeycomb-rotor Deterioration Phenomenon
Because of repeated adsorption and regeneration of adsorbent molecular sieve and
silicone, the phenomenon which adsorption capacity of the adsorbent gradually drop
is called adsorbent deterioration phenomenon.
Adsorbent deterioration phenomenon is mainly caused by hysteresis and adsorbent
regeneration.
Adsorbent thin tube holes and pore shape is complex, solid adsorbed humidification
is complex, sometimes chemical reaction, makes some adsorbed material remain in
absorbent after regeneration and gradual accumulation with the increase in the
number of cycles, these residues will cover the surface of the adsorbent, resulting in
decreasing the adsorption capacity.
When adsorbent regenerate, such as a heated regeneration, the adsorbent would be
the semi-molten state at high temperature, so that part of the pore blockage or
disappear, causing reduction of adsorption surface area.
Chemical reaction will destroy the adsorbent pores crystals such as dilute acid or
alkali gases will cause silica and zeolites crystalline and amorphous material damage.

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