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May 26, 2021 · Fire Tube Boilers. A fire tube boiler is a type of boiler in which hot flue gases flows inside the tube and water is surrounded by these tubes. Comparing to water tube boilers, these are the low pressure boiler that cannot generate that amount of heat. Because of the less heat production, overall efficiency of this boiler is lower.
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Fire-Tube Boiler (~1800) The fire tube boiler, the oldest design, is made so the products of combustion pass through tubes surrounded by water in a shell. The furnace/flame volume can either be inside or external to the shell that contains the water. The upper steam capacity of fire tube boilers is about 20,000 Ibm/hr, and the peak pressure
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Jun 10, 2021 · Cochran Boiler is a fire tube boiler in which coal or gasses are used as a working fluid, to generate steam and the steam is further used for various purposes. It is a multi-tubular vertical fire tube boiler having numerous …
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Pressure: (i) High, (ii) low 8. Tubes: (i) Single-tube, (ii) Multi-tube How a Fire Tube Boiler works: Hot flue gases are fed through the tubes. Tubes are surrounded by water. Cochran Boiler (A Fire Tube Boiler): Fig: Cochran Boiler 9 Vertical mulititubular 9 Efficiency 70 - 75% 9 20 kg/hr to 3000 kg/hr 9 Low initial cost 9 Suitable for
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Sep 14, 2020 · The Cochran boiler is vertical, multi-tube boiler generally used for small capacity steam generation. Cochran boilers are made in different sizes of evaporative capacities ranging starting from 150 to 3000 kg/hr. and working …
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A fire-tube boiler is a type of boiler in which hot gases pass from a fire through one or more tubes running through a sealed container of water. The heat of the gases is transferred through the walls of the tubes by thermal conduction, heating the water and ultimately creating steam.. The fire-tube boiler developed as the third of the four major historical types of boilers: low …
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Oct 27, 2020 · Fire Tube Boiler: When the flames and hot gases, produced by combustion of fuel, pass through the tubes (called multitube) which are surrounded by water, then the boilers are named as fire tube boilers. Types of Fire Tube Boilers: Simple vertical boiler; Lancheshire boiler; Cochran boiler; Locomotive boiler; Water Tube Boiler
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2.8 Cochran Boiler or Vertical Multi tubular Boiler Cochran boiler is a vertical, multi tube boiler commonly used for small capacity steam generation. It is made in different sizes of evaporative capacities ranging from 150 to 3000kg/hr and working pressure up to 15 bar. Construction
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Cochran boilers The modern vertical Cochran boiler has a fully spherical furnace and is known as the 'spheroid' . The furnace is surrounded by water and therefore requires no refractory lining. The hot gases make a single pass through the horizontal tube bank before passing away to exhaust.
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In fire tube steam boilers, the flames and h ot gases produced by the combustio n of. fuel pass through the tubes (called multi t ubes) which are surrounded by water. The …
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Cochran Boiler is a vertical drum axis, natural circulation, natural draft, low pressure, multi-tubular, solid fuel fired, fire tube boiler with internally fired furnace. It is the modified form of a simple vertical boiler. In this boiler, the fire tubes are placed horizontally.
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Aug 29, 2021 · A Cochran boiler is a vertical axis, multi-tubular fire tube boiler that operates at low pressure having natural circulation. The Cochran boiler is portable and has a thermal efficiency of about 70% when coal-fired and 75% when oil-fired. The Cochran boiler is a modified form of the simple vertical boiler and has higher efficiency than that of
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Cochran boiler definition. It is a vertical drum axis, fire tube boiler which has many horizontal tubes to increase heating surface area. It is categorized as a natural draft, natural circulation, low-pressure boiler.It has better efficiency than the simple vertical boiler.
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Oct 02, 2019 · Cochran Boiler is a modified form of the simple vertical boiler which has various firetubes which can exchange heat to water through convection The efficiency of this boiler is much better than the efficiency of simple vertical boiler. In this boiler flue gases will travel in the tubes which will be surrounded by water and water will be heated by convection from this tubes.
Get pricePressure: (i) High, (ii) low 8. Tubes: (i) Single-tube, (ii) Multi-tube How a Fire Tube Boiler works: Hot flue gases are fed through the tubes. Tubes are surrounded by water. Cochran Boiler (A Fire Tube Boiler): Fig: Cochran Boiler 9 Vertical mulititubular 9 Efficiency 70 - 75% 9 20 kg/hr to 3000 kg/hr 9 Low initial cost 9 Suitable for
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Welcome to Cochran UK Global Specialists in Manufacturing & Supplying Industrial Steam & Hot Water Boilers. From provision of new industrial boiler equipment, through maintenance and supply of replacement boiler spare parts; the Cochran boiler package is founded on over a century's experience in the design and manufacture of industry-leading innovation in …
Get priceOct 02, 2019 · Cochran Boiler is a modified form of the simple vertical boiler which has various firetubes which can exchange heat to water through convection The efficiency of this boiler is much better than the efficiency of simple vertical boiler. In this boiler flue gases will travel in the tubes which will be surrounded by water and water will be heated by convection from this tubes.
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The fire-tube boiler developed as the third of the four major historical types of boilers: low-pressure tank or "haystack" boilers, flued boilers with one or two large flues, fire-tube boilers with many small tubes, and high-pressure water-tube boilers. Their advantage over flued boilers with a single large flue is that the many small tubes offer a far greater heating surface area for the
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Cochran boiler definition. It is a vertical drum axis, fire tube boiler which has many horizontal tubes to increase heating surface area. It is categorized as a natural draft, natural circulation, low-pressure boiler.It has better efficiency than the simple vertical boiler.
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(c) Inclined boiler :-If the axis of the boiler is inclined it is known as inclined boiler.2. Fire tube and water tube boilers :-(a) Fire tube boiler : – The boilers in which the hot gases are inside the tubes and water is surrounding the tubes is called fire tube boiler. Example : Cochran, Lancashire and Locomotive (b) Water tube boiler : – The boilers in which the water is inside the
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The fire-tube boiler developed as the third of the four major historical types of boilers: low-pressure tank or "haystack" boilers, flued boilers with one or two large flues, fire-tube boilers with many small tubes, and high-pressure water-tube boilers. Their advantage over flued boilers with a single large flue is that the many small tubes offer a far greater heating surface area for the
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Since fire is inside the tubes and hence it is named as fire tube boiler. The heat from the hot gases is conducted through the walls of the tube to the water. The examples of the fire tube boiler are the simple vertical, Cochran, Lancashire, Cornish, Locomotive, Scotch marine, and Velcon boiler. Water-tube boiler
Get priceJun 10, 2021 · Cochran Boiler is a fire tube boiler in which coal or gasses are used as a working fluid, to generate steam and the steam is further used for various purposes. It is a multi-tubular vertical fire tube boiler having numerous …
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Nov 01, 2017 · Cochran Boiler Essay – 1493 Words – StudyMode Cochran boiler is a vertical, multitubular, internally fired, fired, fire tube boiler.It is a low pressure,medium capacity boiler.The maximum capacity of To study the constructional features of COCHRAN BOILER …
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Mar 29, 2017 · Ther e are two main types of boiler Fire tube boilers and water tube boilers. Fire tube boilers are those boilers in which fire or flue gases are inside of the tubes and water is on the shell side. Fire Tube Boilers are low capacity low-pressure boilers usually used for heating, processor to produce hot water.
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This method is applicable in high-capacity water tube boilers. (iv) Single Tube and Multi Tube Boilers: The fire tube boilers may have single or multi tubes. Lancashire boiler is a fire tube boiler with a single tube in which hot gases move. Cochran boiler is a fire tube boiler called as multi tube boiler because it has large number of fire tubes.
Get priceJul 19, 2019 · In a Fire tube boiler, the fire will be inside the tube and water is surrounded outside. So, it creates low-pressure steam. There are different types of low-pressure boilers. Cochran, Locomotive and; Lancashire; Natural circulation is used in low-pressure boilers, the material which is used in this type is circulated naturally.
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Single tube boiler. As the name specifies, a single tube boiler contains only one fire tube or water tube. Cornish boiler is a single tube boiler. Multi-tube boiler. This boiler has a number of tubes for flue gases or water. An example of a multi-tube boiler is the Cochran boiler. According to the heat source used
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What is Cochran Boiler? Cochran Boiler is a vertical drum axis, natural circulation, natural draft, low pressure, multi-tubular, solid fuel fired, fire tube boiler with internally fired furnace. It is the modified form of a simple vertical boiler. In this …
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A comparison between fire tube and water tube boilers is as follows: Fire Tube Boiler: (a) Hot gases formed after the combustion of fuel flow through tubes and water surrounds these tubes. (b) Internally fired. (c) Working pressure limited to 20 bars. (d) Steam generation rate is lower. (e) For a given power, it occupies large floor area.
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Pressure: (i) High, (ii) low 8. Tubes: (i) Single-tube, (ii) Multi-tube How a Fire Tube Boiler works: Hot flue gases are fed through the tubes. Tubes are surrounded by water. Cochran Boiler (A Fire Tube Boiler): Fig: Cochran Boiler 9 Vertical mulititubular 9 Efficiency 70 - 75% 9 20 kg/hr to 3000 kg/hr 9 Low initial cost 9 Suitable for
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Nov 16, 2020 · It is a low-pressure boiler. you can use any type of fuel for running a Cochran Boiler. This is suitable for small capacity requirements. It has about 70% thermal efficiency with coal firing and about 75% thermal efficiency with oil …
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Apr 26, 2021 · Advertisment. Cochran Boiler Definition: Cochran boiler is a fire tube boiler (Fire inside the boiler and water surrounding to them) in which coal or gases as a working fluid is used, for generating the steam and that steam further used for several purposes.
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Cochran Boiler is a simple fire tube boiler with multiple fire tubes. It is a modification of a simple vertical boiler. In the Cochran boiler, the heating …
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Single tube boiler. As the name specifies, a single tube boiler contains only one fire tube or water tube. Cornish boiler is a single tube boiler. Multi-tube boiler. This boiler has a number of tubes for flue gases or water. An example of a multi-tube boiler is the Cochran boiler. According to the heat source used
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Fusible plug: it protects the fire tubes from burning when the water level in the boiler falls abnormally low. Salient features of Cochran boiler: The dome shape of the furnace causes the hot gases to deflect back and pass through the flue. The …
Get priceJan 18, 2017 · Fire tube and water tube • If hot gases are inside the tube and water is outside the tube, it is called fire-tube boiler. • Examples: Cochran, Lancashire and locomotive boilers • If water is inside the tube and hot gases are outside the tube, it is called fire-tube boiler. • Examples: Babcock and Wilcox, Stirling, Yarrow boiler etc 6.
Get price7. Single Tube and Multi-tube Boilers • The fire tube boilers are classified as single tube and multi-tube boilers, depending upon whether the fire tube is one or more than one. Essentials of a Good Steam Boiler: 1. Produces maximum quantity of steam with the minimum fuel consumption. 2. Economical to install and rapidly meet the fluctuation
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Pressure: (i) High, (ii) low 8. Tubes: (i) Single-tube, (ii) Multi-tube How a Fire Tube Boiler works: Hot flue gases are fed through the tubes. Tubes are surrounded by water. Cochran Boiler (A Fire Tube Boiler): Fig: Cochran Boiler 9 Vertical mulititubular 9 Efficiency 70 - 75% 9 20 kg/hr to 3000 kg/hr 9 Low initial cost 9 Suitable for
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Cochran Boiler is a multi-tubular vertical fire tubular with multiple horizontal fire tubes. The efficiency of this boiler is much better than that of an ordinary vertical boiler. This is a modification of a simple vertical boiler where the heating surface has been extended through several fire fats.
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