CleaverBrooks CBLE, Руководство по эксплуатации и обслуживанию

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Inspection and Maintenance
8-2 750-91 (revised 2009)
Model CB-LE Packaged Boiler Manual
observe necessary safety precautions. Preventive maintenance measures, such as regularly checking the tightness of
connections, locknuts, setscrews, packing glands, etc., should be included in regular maintenance activities.
8.1.1 — Periodic Inspection
Insurance regulations and local laws require periodic inspection of the pressure vessel by an authorized inspector.
Section 3.9 in Chapter 3 contains information relevant to the inspection.
Inspections are usually, though not necessarily, scheduled for periods of normal boiler downtime, such as an off
season. This major inspection can often be used to accomplish maintenance, replacement or repairs that cannot
easily be done at other times. Inspection also serves as a good basis for establishing a schedule for annual, monthly,
or other periodic maintenance programs.
While the inspection pertains primarily to the waterside and fireside surfaces of the pressure vessel it provides the
operator an excellent opportunity for detailed inspection and check of all components of the boiler, including pip-
ing, valves, pumps, gaskets, refractory, etc. Comprehensive cleaning, spot painting or repainting, and the replace-
ment of expendable items should be planned for and taken care of during this time. Any major repairs or
replacements that may be required should also, if possible, be coordinated with the period of boiler shutdown.
Replacement spare parts, if not on hand, should be ordered sufficiently prior to shutdown.
Cleaver-Brooks boilers are designed, engineered, and built to provide long life and excellent service. Good operat-
ing practices and conscientious maintenance and care will assure efficiency and economy from their operation, and
will contribute to many years of performance.
A total protection plan includes a Planned Maintenance Program that covers many of the items included in this
chapter.
For information regarding a total protection plan, contact your local Cleaver-Brooks authorized representative.
8.2 — Fireside Cleaning
Soot and non-combustibles are effective insulators, and, if allowed to accumulate, will reduce heat transfer to the
water and increase fuel consumption. Soot and other deposits can be very moisture-absorbent, and may attract
moisture to form corrosive acids that will deteriorate fireside metal.
Cleanout should be performed at regular and frequent intervals, depending upon load, type, and quality of fuel.
internal boiler temperature, and combustion efficiency. A stack temperature thermometer can be used as a guide to
cleanout intervals since an accumulation of soot deposits will raise the flue gas temperature.
Tube cleaning is accomplished by opening the front and rear doors. Tubes may be brushed from either end. All
loose soot and accumulations should be removed. Any soot, or other deposits, should be removed from the fur-
nace and tube sheets.
NOTE: Cleaver-Brooks genuine parts should be used to ensure proper operation. Contact your local Cleaver-Brooks
representative for parts information and ordering.