CHAPTER TWO: Boiler Operation Maintenance & Safety Study Guide
Get a quoteignition, bringing the boiler up to normal operating conditions, and preparing and pressurizing the steam headers. Ignition Although boilers have many different specific ignition systems, they all follow the same basic sequence of steps: 1. Pre-purge of the furnace. 2. Reduction of air flow for stable ignition. 3. Pilot burner ignition 4.
Get a quoteBringing a Steam Boiler On-Line from Cold. To help understand what needs to be done and why things need to be done in a certain way, the following procedure presumes t hat t he boiler is completely cold and dry, such as after a prolonged shutdown or annual inspection.
Get a quoteFrequently, the boiler inspector requires all of the plugs removed at the water column and the low water fuel cutoff controls opened so the inside float chamber can be inspected. Fusible plugs must be replaced. After both the fire side and water side of the boiler have been cleaned, notify the inspector that the boiler is ready for inspection.
Get a quote4.3 Dissolved oxygen removal in feedwater heating 17 4.4 Internal or post-chemical treatment 18 4. 5 Condensate purity 19 4.6 Blowdown control 19 4.7 Steam purity 19 4.8 Role of boiler operation 20 4.8.1 Operation scheduling 20 4.8.2 Removal of boiler from operation 21 4.9 Prevention of corrosion in idle boilers …
Get a quoteCHAPTER TWO: Boiler Operation Maintenance & Safety Study Guide
Get a quote(c) Heating Boiler - A steam or vapor boiler operating at a pressure not exceeding l5 psi steam pressure or a hot water boiler in which water or other fluid is heated and intended for operation at pressures not exceeding l60 psi or temperatures not exceeding 250 degrees Fahrenheit. (d) Electric Boiler - A power boiler or heating boiler
Get a quoteWater tube boilers are classified as follows: 1. Horizontal straight tube boilers (a) Longitudinal drum (b) Cross-drum. 2. Bent tube boilers (a) Two drum (b) Three drum (c) Low head three drum (d) four drum. 3. Cyclone fired boilers Various advantages of water tube boilers are as follows: (i) High pressure of the order of 140 kg/cm2 can be obtained.
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