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  • Boiler Questions and Answers regarding Your Boiler

    Here is what you need to know to figure this one out. The size of your boiler (bhp) the fact that one bhp = 34.5 lbs./hr. and that one gallon of water weighs about 8.337 lbs. Take all of these facts and plug them into the following calculation: BHP (Boiler Horsepower) X 34.5 / 8.337 / 60 X 10 = gallons of water needed.Learn More

  • Purging Airflow Before Combustion: What Is Required? - BDC

    calculate required purging time for steam boiler About Us. Zhongzheng Boiler main products include gas&oil boiler, coal-fired boiler, biomass boiler, thermal fluid heater and other series of more than 400 varieties of specifications.Learn More

  • Steam Accumulators and Steam Boiler Response to Load …

    Another important factor in instantaneous boiler response is steam chest volume. All steam piping and boiler steam space will maintain a reservoir of steam. If you determine the volume of this area, you can use steam specific volume data to determine the mass of steam stored. For example, if a boiler has a steam space of 3 cubic feet and there areLearn More

  • B4 C2 Boiler Start Up Flashcards | Quizlet

    a. If you heat up a steam line to approx. ½ operating temp, the steam won't have time to condense if you hurry the load onto the line. b. Water in the steam line actually is good because it de-superheats any superheated steam produced by the boiler. c. Water in your steam line is just an old steamers fable. d.Learn More

  • calculate required purging time for steam boiler

    Purging Airflow Before Combustion: What Is Required? - BDCLearn More

  • Minimize Boiler Short Cycling Losses

    added to bring a facility to required settings quickly after a night setback. Cycling Losses A boiler cycle consists of a firing interval, a post-purge, an idle period, a pre-purge, and a return to firing. Boiler efficiency is the useful heat provided by the boiler divided by the energy input (useful heat plus losses) over the cycle duration.Learn More

  • Steam Calculators: Boiler Calculator

    Mar 17, 2015 · Steam, Boiler, and Blowdown Pressure are the same. Combustion Efficiency is the % of fuel energy that is directly added to the feedwater and not otherwise lost or used. Blowdown Rate is the % of incoming feedwater mass flow rate that leaves the boiler as a saturated liquid at boiler pressure.Learn More

  • Calculate Required Purging Time For Steam Boiler

    Marine Steam Boilers' Control Automatic. Find the furnace volume and the fan capacity from the documentations and calculate the purge time needed. The time must never be less than fifteen seconds even if your calculation says so. Start the stopwatch again …Learn More

  • Boiler Sizing Calculators | Powerhouse

    Boiler Horsepower Calculator. Boiler horsepower is used for sizing steam boilers. This calculation translates the steam load (in pounds per hour) to boiler horsepower. Each boiler is given a boiler horsepower (BHP) rating based on the steam output capacity at 212°F and 0 psig.Learn More

  • How to Destroy a Boiler -- Part 3

    All the water in the deaerator will immediately flash to steam in the event of a rupture, filling the boiler room with deadly steam. The boiler's warm-up curve should be strictly followed. The standard warm-up curve for a typical boiler is not to increase the boiler water temperature over 100°F per hour.Learn More

  • Proper sizing of Boiler Feedwater System

    One boiler horsepower = 34.5 lbs/hr of steam (or water) from and at 212o F. We also know that one-gallon of water weighs 8.37 lbs. To calculate the storage tank needed use the following formula: BHP X 34.5 ÷ 8.337 lbs ÷ 60 min. X 10 = minimum useable capacity in gallons. For example, if you have a 500 HP boiler the calculation will be as Learn More

  • How to Destroy a Boiler -- Part 1

    Purge, purge, purge! Low-Water Conditions The potential for severe and even catastrophic damage to a boiler as a result of low-water conditions is easy to imagine considering that furnace temperatures exceed 1,800°F, yet the strength of steel drops sharply at temperatures above 800°F.Learn More

  • Industrial boiler technology for beginners

    boiler of this type, filled with water and ready for function, can weigh as much as 165 tons, which corresponds to the weight of 120 VW Golfs. Hot water or steam boilers are relatively similar in design (Figure). The boiler pressure vessel is a horizontal, cylindrical tube closed at both sides with an end plate and insulated all around.Learn More

  • backfire and purging of a boiler – Industrial Boiler Supplier

    steam autoclave chine . J0000006 6 2017. marsh gas fired boiler for pig farm . J0000006 6 2017. 5mw coal fired hot water boiler in Russia . J0000006 6 2017 backfire and purging of a boiler. Posted On : Kefid Published By : Jenny Wu.Learn More

  • Water Handbook - Boiler Blowdown Control | SUEZ

    This may be required for specific reasons, such as contamination of the boiler water. In this case, a high blowdown rate is required to eliminate the contaminants as rapidly as possible. The blowdown rate required for a particular boiler depends on the boiler design, the operating conditions, and the feedwater contaminant levels.Learn More

  • Minimize Boiler Short Cycling Losses

    Find the furnace volume and the fan capacity from the documentation's and calculate the purge time needed. The time must never be less than fifteen seconds even if your calculation says so. Start the stopwatch again when the automatic fuel oil shutoff valves open. Stop the stopwatch when the fuel oil shutoff valves close and you get a flame failure or misfiring alarm, and note the trail-for-ignition time.Learn More

  • Inert Gas Purging Requirement Calculation

    The purpose of a steam accumulator is to release steam when the demand is greater than the boiler's ability to supply at that time, and to accept steam when demand is low. Find about about the need for steam storage to meet peak load demands in specific industries, including the design, construction and operation of a steam accumulator, with Learn More

  • Calculate Required Purging Time For Steam Boiler

    Marine Steam Boilers' Control Automatic. Find the furnace volume and the fan capacity from the documentations and calculate the purge time needed The time must even if your calculation says so Start the stopwatch again when the automatic fuel oil shutoff valves open Stop the stopwatch when the fuel oil shutoff valves close and you get a flame failure or misfiring alarm and note the trail-for Learn More

  • Johnston Boiler Company Technical Brief

    Purging is like opening the window on your furnace to let air in. It is required by the NFPA86 and should be done before each furnace heating system start-up. The purge of airflow removes gaseous combustibles in a furnace and replaces it with air.Learn More

  • Understanding Fuel Savings In the Boiler Room

    boiler level by specifying a high-efficien-cy boiler with an economizer. If a steam boiler does not have an economizer, it can be retrofitted in the field. According to Kenneth McKelvy of Babcock and Wilcox, the rule of thumb is every 40°F (22°C)decrease in stack temperature equates to a 1% increase in boiler …Learn More