articles written by Bruce Grossman
In my travels as a dry cleaning mechanic, one of the more common complaints I hear is the loss of steam pressure caused by low water level in the boiler. Low water level can be caused by several different problems, and in this and follow-on issues I’ll be explaining how to find the cause/causes of […]
Check valve troubleshooting Read More »
There is a long list of impurities to be found in water entering a boiler. However, in the dry cleaning and laundry industries, the major ones effecting the operation of boilers are dissolved solids (known as TDS, or total solids) and oxygen which is dissolved in the new, city water entering the return tank. This
보일러로 들어오는 물에는 다양한 불순물이 포함돼 있다. 하지만 드라이클리닝과 론드리 산업에서 가장 신경 써야 하는 불순물은 전용해물질(TDS: Total Dissolved Solids)과 산소로 리턴탱크로 들어오는 상수도 물에 녹아 있다. 물속의 산소는 이산화탄소와 결합해 탄산(carbonic acid)을 형성하는데, 이것이 보일러는 물론 스팀 시스템 배관까지 부식시킨다. 보일러 용수에 녹아있는 산의 농도는 pH 계수로 표시한다. TDS와 pH를 측정하면 플랜트로 들어오는 물과
In the past, companies supplying boiler maintenance chemicals like “BOILER COMPOUND” had representatives visit your plant, take water samples and analyze them in order to prescribe the proper blow-down procedures and how much boiler compound to add and when. However, the business model which provided that type of high-level service is no longer workable in
Boiler water testing Read More »
The next series of articles will be devoted to the safe use of meters in preventing and troubleshooting common problems encountered in the operation of your plant. Included will be the different tests and measurements required, why they are necessary, how to take them, and the meaning of the results. Don’t be concerned about being
All about meters (1) Read More »
In a bygone era of cheap solvent, transfer machinery and Per Combo filters and cooker stills a drip was generally no big deal. However, the increasing costs of solvent and energy, coupled with environmental regulations, should markedly sharpened our maintenance and housekeeping practices. I’m dedicating the next few articles to the selection of/and techniques involved,
Stop that expensive leak Read More »