Heatless regenerative desiccant application of activated alumina
Instrument air is extensively made use of within a selection of industries, utilizing pneumatic instrumentation of numerous petrochemical, is supplied by the sting of utilities. Generally, air drying technique could be the use of heat regeneration of common-Tower adsorption. In current years, there has been a new regenerative approach, its principle and approach of operation is entirely different from regeneration on the common law, in comparison, heatless regenerative process with significantly less investment, very simple gear, low running fees and high degree of automation, by the industry's attention. A domestic organization, the introduction of regenerative air dryer, is presently the largest device of its type, technical indicators advanced. Heatless regenerative failure on account of adsorbent surface contamination by hydrocarbons, consequently, strictly in the raw gas oil, at the same time, frequent switching requirements with reliable automatic switching systems, generating it extensively employed subject to particular restrictions, but at present is promoting the use of this technology.
No heat of drivers utilised in regeneration method, will be the important material available of a molecular sieve, silica gel, activated alumina, the introduction of devices making use of activated alumina, with low cost cost, higher strength, long life and other advantages.
?? in the next six months, 3 sets of dryer makes use of two compressor matching operation, with domestic activity of activated alumina alumina desiccant S431 group and place France activated alumina desiccant S432. S433 group in have to most time inside dew point are is certified of, II species activity alumina activity alumina desiccant dehydration depth no certainly difference, which domestic activity alumina activity alumina desiccant can meet design of procedure needs, which in July and December late had two instances appeared definitely of dew point not certified, and July is assessment II machine (compressor) II Tower running impact of, December late is on account of S432 Tower technique gear fault, is II machine II Tower operating, are belongs to demanding situations running.
II August features a time 3 group dry tower of dew point are had Xia down-40 ?? about, domestic activity alumina desiccant dew point also has a time not qualified, but Hou by Tianjin properties will the houses Uk Shaw's dew point instrument with to Liao of check, and on energy factory of dew point analysis operation for verify, discovered is as a result of atmospheric humidity massive, sampling glue tube not filling copies dry, and brings points folding errors caused dew point not certified, improved operation Hou dew point voting qualified, in strictly operation of conditions Xia, mirror process and United states Shaw's dew point instrument nuclear Yes, proved to be a very good agreement.
?? Based on original design and style, instrument wind capacity for 600NmV Shi, once again life sex alumina desiccant needed dry air 800Nm3/Shi, total of capacity for 6400NmV Shi, 93# device total compressor 3, each Taiwan capacity for 3200NmV Shi, so normal predicament Xia, two Taiwan compressor work can; no hot regeneration dry Lian Tower three group, each and every group capacity for 3200Nm3/Shi, standard scenario Xia should really is II group work, a group alternate, but at the moment regular production, and Device assessment acceptance and activity alumina desiccant industrial trial are is II Zhu (compressor), and three Tower (dry tower) running, such on design and style,, is low load running, as a result of this test is in technique conditions entirely constant Shi compared. activity alumina desiccant efficiency, even though in domestic activity alumina desiccant not qualified Shi, France dry also just isn't certified, so nonetheless can proved, domestic activity alumina desiccant and France activity alumina desiccant is quite of. In fact, failing to meet the design and style specifications, estimate and regeneration of smaller air volume associated with existing dry air returns the method resistance, air lift up, affecting the capacity from the device.
II as a consequence of activity alumina desiccant, Technique media clean, and oil copies, impurities near zero, so activity alumina desiccant in applying in the will has fantastic of stability, total life lengthy, its performance for domestic activity alumina desiccant initial instances loaded Tower Shi France activity alumina desiccant has utilizing two years, domestic new activity alumina desiccant except drive quick time within dew point slightly is superior to France activity alumina desiccant outdoors, then dew point and France activity alumina desiccant rapidly tends to constant ; And Dang domestic activity alumina desiccant making use of half Hou replaced France new of activity alumina desiccant Shi, circumstance is same of, this proved, no matter France activity alumina desiccant and domestic activity alumina desiccant stability are is is excellent of, future operation within the to working with this a favourable situations, extended activity alumina desiccant of utilizing life, ought to in does proved activity alumina desiccant itself aging or damaged volume is huge Shi only really should added or replaced, frequently of replaced activity alumina desiccant in process Shang and no added benefits, Is economically disadvantaged.
?? from discharge of activity alumina desiccant can see, due to program stress poor massive, does and switch frequency higher, so activity alumina desiccant of crushed is a lot more significant of, discharge of activity alumina desiccant particles obviously variable compact, future in selection activity alumina desiccant Shi, strength should to unique note, though in operation within the to constantly note Tower physique stress drop of alterations, resistance major to ought to degree, can effects dry tower of normal run.
?? domestic activity alumina desiccant and Extended Boluo Kat, enterprise activity alumina static can adsorption capacity close; and than surface, and aperture, and pore volume, surface nature more close Yu PSG-A, worth note of is stacked share low, for 0.74, and RP-A compared to absolute poor up 0.2, stacked share of decreased, straight effects activity alumina desiccant of loaded volume, in option abroad activity alumina desiccant making use of Shi, if two species activity alumina desiccant adsorption capacity same, is domestic alumina using life may possibly shortened. Recommends that the further improvement of scientific investigation, production units.
Source: http://www.abrasives.asia
