Boiler Design. Three-Pass "Scotch Marine" Firetube design with stress relieving "Wetback" construction. Pressure designs for steam are 15-300 psi. 100-600 hp. 250 psi. max. for 700-1500 hp. and 200 psi. max. for 1800-2000 hp. Hot Water pressures models are from 30-160 psi. High pressure, high temperature Section I hot water boilers available.

Packaged Boiler: Intech Boiler. Intech as it’s name implies is a 3 Pass Internal Furnace Packaged Boiler.It is a conventional 3 pass smoke-tube design, designed for the combustion of coal and wood in an internal furnace and is therefore sometimes known as coal/wood fired Steam Boiler.. This Packaged Boiler comes in dry back, semi-wet back, and fully wet-back options and is most suitable for

Three Pass Fire Tube Boilers 10-18 16:21:02 . Each set of tubes that hot combustion flue gas travels through before making a turn within the boiler, is considered a "pass." A 3-pass fire tube boiler design consists of three sets of horizontal tubes, with the stack outlet located on the rear of the boiler.

Boiler: Three pass full wetback, packaged firetube type, constructed in accordance with requirements of the ASME Code Section IV for 30 psi and 125 psi water or 15 psi steam; Section I for higher pressure steam. All units are registered with the National Board. Boiler tubes are expanded and flared in low pressure boilers;

A fire-tube boiler is a type of boiler in which hot gases pass from a fire through one or (many) 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

The Scotch boiler is a fire-tube boiler, in that hot flue gases pass through tubes set within a tank of water. As such, it is a descendant of the earlier Lancashire boiler, and like the Lancashire it uses multiple separate furnaces to give greater heating area for a given furnace capacity. It differs from the Lancashire in two aspects: many

Fire-tube Boilers. In fire-tube boilers, combustion gases pass through the inside of the tubes with water surrounding the outside of the tubes. The advantages of a fire-tube boiler are its simple construction and less rigid water treatment requirements.

Mar 04, 2020· Fire tube boiler is one of the most basic types of boiler and the design is also very old. It was popular in 18 th century. It was mainly used for steam locomotive engines. Operation of Fire Tube Boiler. Operation of fire tube boiler is as simple as its construction. In fire tube boiler, the fuel is burnt inside a furnace.The hot gases produced in the furnace then passes through the fire tubes.

The dryback boiler reversal chamber has a rear wall that is lined, or jacketed with refractory, which passes combustion gasses from the furnace to multiple tube sheets and reflects burner heat, resulting in exterior radiation losses. The dry back boiler design uses a common rear tube sheet and features convenient fire-side and water-side access.

Apr 13, 2016· Savemax Boiler is the conventional three pass smoke-tube design Oil / Gas fired steam boiler having an internal water cooling furnace area. The superior and features make it …

Most of the fire tube boilers now come in a complete package.The main parts of the package are : oil burners; fuel pump; forced draft fan; feed pump; automatic control system. Boiler mountings; The most basic type of a package boiler is single passage three pass design. One such boiler is shown in …

Three pass fire tube boilers divided into three pass gas boiler and three pass oil fired boiler, with same structure but different burner. Once we have export 15t three-p water tube boiler to Bangladesh, they using boiler for textile company.. The largest number of fire-tube boilers in use today for commercial and small industrial plants is the marine boiler.

Nov 24, 2016· Fire Tube boiler is the simplest form of the internal furnace, vertical fire tube boiler. Fire tube boilers are a portable boiler and it requires a small floor space. The steam rating in fire tube boilers doesn’t exceed 2500 kg per hour and pressure is limited to 10 bars. Construction:

10. The fire line in a fire tube boiler: a. Will be 53 cm above the lowest permissible water level b. Will be the highest part of the heating surface c. Will be 76 mm above the bottom most part of the gage glass d. Is the end of the furnace tube e. Will be the end of the flame in the furnace.

4 Pass Design Johnston maximizes boiler performance design to minimize operations maintenance. 3500-4500 2600' • For many years, there were two choices — a 4 pass dry backed boiler or a 3 pass water backed boiler. This was a hard decision for many users. A 4 pass would have a higher efficiency, but higher maintenance costs associated

Trust the firetube boiler experts at IB&M. Industrial Boiler & Mechanical proudly sells new 3 pass firetube boilers from Johnston Boiler Company, but also has the expertise to provide on-site or in-house service and repair for 3 pass boilers from other manufacturers as well. In addition to an in-stock inventory of used 3 pass boilers, we offer

Summary • The firetube boiler is a versatile package suitable for a plethora of applications including heating and process • Typical size range is 100 –2500 HP • Pressures to 350# • Construction follows ASME code Sections I & IV and includes close 3rd party inspections • There are both dryback & wetback horizontal firetubes with each having advantages and disadvantages

Apr 04, 2016· Intech (3 passes Internal Furnace Packaged Type Boiler) Boiler is the conventional three pass smoke-tube design coal/wood fired steam boiler having the internal furnace. This packaged Type Boiler

Wns Fire Tube Steam Boiler - ahujautsavbhiwandi.in. Wns Fire Tube Steam Boiler have a three-pass round coil structure. A conical coil is used for the effective protection of the furnace wall at the boiler end. This product is equipped with an advanced combustion …