A fire tube boiler creates heat in pipes to heat the water surrounding the tubes, and the boiler vessel itself contains the water being heated. While this type of commercial boiler would be ideal for both low- and high-pressure steam, or for hot water applications, it is limited in the amount of pressure available.
The water for a hot water boiler does not need to be potable, but it can still be used as part of a home's radiant heating system and run through the pipes located in a home's walls. A boiler will also have an exhaust, much like a hot water heater, that serves as an escape route for fumes created by the gas burner in the boiler.
This leads to scale formation inside the boiler, resulting in localized overheating and ending finally in tube failure.It is therefore necessary to control the level of concentration of the solids and this is achieved by the process of 'blowing down', where a certain volume of water is blown off and is automatically replaced by feed water
12 important things should know during boiler walk down check up . Difference between pipe and tubes. Pipes: a pipe is used for the transport of a fluid like water, oil or similar, and the most import property is the capacity or the inside diameter. Tubes: the tubes N.D (Nominal Dimensions) are based on the outside diameter. While inside
FIRE TUBE refers to a boiler with straight tubes, which are sur-rounded by water and steam and through which the products of combustion pass. BOILER RATINGS Packaged boilers are rated on the basis of maximum continuous nozzle output, in terms of boiler horsepower, B.T.U. per hour, or pounds of steam per hour at 212° F. Available information can be
Two primary types of boilers include Firetube and Watertube boilers. In a Firetube boiler, hot gases of combustion flow through a series of tubes surrounded by water. Alternatively, in a Watertube boiler, water flows in the inside of the tubes and the hot gases from combustion flow around the outside of the tubes.
The firetube boiler passes combustion gas inside a series of tubes surrounded by water in a vessel to produce steam, while a watertube instead sends water through a series of tubes surrounded by combustion gas used to transfer heat energy and produce steam. Here are a few key differences between the two:
The table below gives a brief comparison of Water Tube and Smoke Tube Boilers-comparison of water tube and smoke tube boilers
boiler tubes. Fly ash erosion, is a significant boiler tube failure concern, occurs in the regions with high local flue gas velocities, with high ash loading, and with abrasive particles such as quartz Corrosion: Deterioration and loss of material due to chemical attack. There are two basic categories in boiler tubes:
to clearly define boiler efficiency. It will also give you the background in efficiency needed to ask the key questions when evaluating efficiency data, and provide you with the tools necessary to accurately compare fuel usage of boiler products, specifically firetube type boilers. Remember, the initial cost of a boiler is the
Symptoms: Aggressive localized boiler tube corrosion and loss of tube wall.Pits can act as stress-concentration sites which can be initiation points for stress-related corrosion mechanisms. Causes: Oxygen pitting occurs with the presence of excessive oxygen in boiler water.It can occur during operation as a result of in-leakage of air at pumps, or failure in operation of preboiler water
Open the boiler at the end of the boiling-out period and clean out the sludge and loose scale. Pay particular attention to removing scale and sludge from water legs in fire-tube boilers. Flush the boiler thoroughly. If a lot of corrosion is exposed when the scale is removed, notify your superior so a boiler inspection can be made.
Fire-tube boiler definition is - a boiler in which water surrounds the tubes through which hot gases pass from the furnace to the stack.
(a) Explain the differences between fire-tube boilers and water-tube boilers with respct to the following: • construction • operation • main mechanisms of heat transfer • properties and uses of steam produced. (b) Discuss the major factors which affect the choice of boiler type for particular applications.
As the water tube boiler is a high pressure operating boiler, we can generate more steam. In this article, we had an overview of what is a water tube boiler, its types, construction, working, advantages, and disadvantages. Here is a question for the readers, what is the difference between a fire tube and water tube boiler?
Use in Either Water or Fire Tube Boilers; Ideal for HRSG's; These boiler repair plugs reliably plug boiler tubes without welding or time consuming pre-heating and post weld stress relieving and the weld inspections that go with it. EST's Pop-A-Plug® Boiler Plugs are made for fast, easy installation. Just position the plug in place and set with
Difference between Fire tube & Water tube boiler |Explanation Video Lecture | By Yuvika Singh - Duration: 9:34. Yuvi-Study Point 8,384 views
The FTXL boiler is the new 98% efficiency standard in fire tube technology, and it puts remote connectivity at your fingertips. The FTXL boiler also has a compact footprint of just 6.2 sq. ft. 5 Models from 399,999 to 850,000 Btu/hr
Totally reinventing fire tube technology from the ground up. Patented stainless steel heat exchanger —eliminates high stress point welds. Advanced user interface and controls with intuitive text display, simplifies boiler setup. Built-in hardware to connect a boiler system pump, 3 zone pumps or 3 zone valves.
A water tube boiler is such kind of boiler where the water is heated inside tubes and the hot gasses surround them. This is the basic definition of water tube boiler. Actually this boiler is just opposite of fire tube boiler where hot gasses are passed through tubes which are surrounded by water.. Advantages of Water Tube Boiler. There are many advantages of water tube boiler due to which
The shell is either 80% full of water - for making steam - or completely filled with water - for generating hot water. They are called fire-tube boilers because the fire travels inside the tubes. Fire-tube boilers have doors that swing open to expose the inside of the fire-tubes for inspection and cleaning.
In a fire tube boiler, hot gas passes through the pipes and boiler feed water is inside the shell to be converted into steam. Fire tube boilers are usually used for relatively small steam capacities with low to moderate steam pressures. As a guideline, competitive fire tube boilers for steam speeds up to 12,000 kg / hour with pressures up to 18
Elite FT - Heating Boiler The Elite FT® is a high efficiency heating boiler for residential and commercial applications. This versatile unit is wall hung and comes in five models, ranging from 80,000 to 399,000 BTUs.It's exclusively designed stainless steel heat exchanger provides superior heat transfer.
The Soot Buster is a pneumatically actuated cleaning tool that propels itself inside of tubes and scrubs the tube ID with each pulse. The Soot Buster is a pneumatically actuated cleaning tool that propels itself inside of tubes and scrubs the tube ID with each pulse. Firetube Boiler Tube Cleaning System.
interconnecting bent water tubes. The hot combustion gases used to heat the water circulate outside these tubes. All of this is contained in a large, insulated, and sometimes gas tight enclosure. Firetube boilers contain the combustion gases in straight tubes and the combustion chamber while the water and steam circulate outside these tubes.
In watertube boilers, boiler water passes through the tubes while the exhaust gases remain in the shell side, passing over the tube surfaces. Since tubes can typically withstand higher internal pressure than the large chamber shell in a firetube, watertube boilers are used where high steam pressures (as high as 3,000 psi) are required.
The Scotch Marine Boiler is a firetube boiler, in that hot flue gases pass through tubes set within a tank of water. The general layout is that of a squat horizontal cylinder. One or more large cylindrical furnaces are in the lower part of the boiler shell. Above this is a large number of small-diameter fire-tubes.
The arrangement in the Water tube boiler water is that the water is contained inside the tubes while the hot combustion gas flows on the other side of the tubes. water tubes boilers produce high-pressure steam which is used for power generation purposes. water tube boilers are more efficient and less dangerous than fire tube boilers.
A water tube boiler runs off of water tubes that are heated externally by fire. The tubes connect to a steam drum and a mud drum, and steam is produced in the upper drum. The water in the tubes creates steam directly, instead of tubes heating water as is the case in a fire tube boiler. Water tube boilers are used more for industrial
Understanding the operational design differences. Firetube boilers are available in either dryback or wetback design. They are identified by the type of reversal (turnaround) chamber, or posterior portion of the combustion chamber, through which flue gasses travel through the furnace to second-pass tubes to heat water within the boiler.
One thought on " what are difference between Water tube boiler & Fire tube boiler? Competitive Exam Questions for Mechanical Engineers - Mechanical Engineering says: February 8, 2016 at 10:34 PM
difference between water tube and fire tube boiler. difference between water tube and fire tube boiler. Skip navigation Sign in. Search. Loading Close. This video is unavailable.
Difference Between Fire Tube Boiler and Water Tub. The difference between fire tube boiler and water tube boiler can be done on various points. These points includes types of fluid flows within the tubes, steam generation rate, floor area required for the steam generation, transportation, efficiency, fluctuating loads, operating cost etc. the knowledge of the difference about these two boiler
1. (a) Explain the differences between fire-tube boilers and water-tube boilers with respct to the following: • construction • operation • main mechanisms of heat transfer • properties and uses of steam produced. (b) Discuss the major factors which affect the choice of boiler type for particular applications.
For both, steam drum systems as well as once-through steam generators (OTSG) systems, we must have uninterrupted flow of water through the tubes in order for the system to continuously generate steam. For an OTSG system, water travels only one time (single pass) through the boiler tubes before being converted to steam and sent to the steam turbine generator set for producing electricity.
Comparison between Fire Tube and Water Tube Boiler can be done in 14 aspects. Those aspects are operating pressure, passage of material type in tubes, rate of steam generation, handling of load fluctuation, floor area requirement, efficiency, operator skills, design, maintenance cost are listed below in the tabular form.
In a fire tube steam boiler, heat and gases of combustion pass through the tube surrounded by water. Fire tube boilers steam boilers maybe either high or low pressure boilers. The three types of fire tube steam boilers are horizontal return tubular boiler, scotch marine boiler, and vertical fire tube boiler. All fire tube boilers have the same
The High Efficiency Mascot FT (Fire Tube) Boiler The Mascot FT is a cascadable high-efficiency wall mounted boiler that easily satisfies the space heating needs of the modern home. Powering the Mascot FT is an advanced fire tube heat exchanger that uses the latest in heating tube technology to deliver quick heating response, exceptional
The EPIC™ Fire Tube Combi will have 3 sizes; EPC110N, EPC150N and EPC199N MBH inputs with DHW Combi heat exchanger. The EPIC Fire Tube Boiler will have 4 sizes; EPB80N, EBP110N, EPB150N and EBP199N MBH inputs.
Down comer pipes are outside the boiler furnace while water walls are inside the furnace. Water rises through water wall tubes are exposed to furnace heat. When water rises upside in tubes, a portion of the water is converted into steam and continue to rise upwards as a mixture of steam and water. Heat absorbed in water wall is latent heat of