Types of engine room boilers and their comparison

One of the main pieces of equipment of the engine room is the boiler or boiler, which is responsible for heating water or supplying water steam along with the burner. In this article, the types of engine room boilers are discussed and compared. Please follow us in this article to get more acquainted with the application, advantages and disadvantages, and types of engine room boilers.

What is a boiler?

A boiler is a device in which the water of the heating system is heated by a burner flame. Boilers are divided into different types in terms of material, application, and performance. In the following, we will examine the types of engine room boilers or boilers.

Types of engine room boilers in terms of material

Engine room boilers are divided into two types in terms of material: cast iron boilers and steel boilers.

Cast iron boiler

This type of pot or boiler is made up of connecting cast iron pieces called fins. Due to the ability to assemble and disassemble the cast iron boiler, it can be used in spaces where it is not possible to use a steel and integrated boiler. In fact, cast iron boilers are assembled and installed in the engine room. 3 types of sections are used in the construction of each capacity of cast iron boilers, which are as follows.

• Front section: burner connection.
• Middle section: By reducing or adding these sections, it is possible to reduce and increase the capacity of cast iron boilers (limited).
• Rear section: Chimney connection.

The sections of cast iron boilers are connected one after the other by bushings and boiler paste and are fixed by means of a piece called a retaining rod, four of them for each cast iron boiler so that at the junction of the connections due to their expansion or heating, There should be no leakage.

Cast iron boilers have the ability that if a section is punctured or broken, there is no need to replace the boiler and the problem can be solved only by replacing a section. It should be noted that the maximum water pressure of cast iron boilers is 7 times (buildings up to 20 floors) and are suitable for use in environments with moderate temperatures and hot water up to 90 degrees.

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Advantages of cast iron boiler

• Ease of installation and the possibility of easy movement of parts
• High durability against corrosion and rust
• Ability to change capacity by lowering or adding middle blades
• Ability to replace damaged blades instead of the whole boiler
• A more reasonable price than steel boilers with standard plates in the same capacity

Disadvantages of cast iron boilers

• Possibility of sediment on the surface.
• Their lower thermal efficiency than steel boilers.
• Among the disadvantages of cast iron boilers, we can point out the low-pressure tolerance of 4 to 7 times compared to steel boilers.

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Steel boiler

Steel boilers, as their name implies, are made of steel and are usually made of horizontal cylinders. Steel boilers have a combustion chamber in which pipes are placed around this chamber. The pipes that are installed around the combustion chamber of steel boilers are made of a special alloy so that they do not burn or damage in the face of a direct flame. These pipes are called (fire pipes). Steel boilers are divided into friends from the point of view of heat transfer, which are as follows.

• water tube (water moves inside the pipes).
• fire tube (flame moves inside the tubes).

Steel water tube boiler

Water tube boilers are mostly used in thermal power plants, large industries such as sugar and steel factories, etc., which require high capacities and high pressure.

Steel fire tube boiler

Fire tubes or fire in steel pipes are suitable for common capacities such as heating systems of buildings, medium industries, etc.

Advantages of standard steel boiler (with standard plate):

• Longer life than a cast iron boiler
• High heating performance of three-pass steel boiler
• Possibility of construction in unlimited capacity (for large projects)
• High durability against very high pressures

Disadvantages of steel boilers

• Their high price compared to a cast iron pot with the same capacity
• They are difficult to move and transport due to their high weight
• Unchangeable and stable capacity

Concluding remarks

On the website of Damatajhiz's specialized collection, technical information on dozens of models of cast iron and steel hot water boilers, from reputable brands with original warranties, has been presented for you to enjoy the good feeling of optimal and smart shopping. To view the capacities, working pressure, and different models of the top brands of these products, compare the prices and buy all types of cast iron and steel boilers, you can go to the website of Damatajhiz specialized collection (the first and most reliable specialized collection in the field of construction equipment and all devices air conditioners since 1383 and having 3 valid business licenses. Also, in order to consult and choose the cast iron or steel boiler needed for your project, you can contact the heating equipment and engine room experts of Damatajhiz during office hours.

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