What is a Cornish Boiler?

The Cornish Boiler is a horizontal tube boiler with an internal combustion tube. 

The frame boiler has a long horizontal cylindrical shell. This boiler has a single fire hose from front to back. This fire tube is not concentrically attached to the body. The fire hose is located outside the center. The fire tube is off-center because the shell never fills with water, there is still room at the top of the shell for steam and the fire tube is positioned almost in the center full of water area.

Cornish Boiler Parts: 

1) Shell: –

This is the outermost layer of the cornea. It is a container with water and fire pipes. Here the heat transfer takes place between hot gas and water.

2) Grill and stove: –

Here the coal is put into the fire tube and burns. A furnace is where coal or fuel enters and burns. The grate is the part that generates heat with the help of fuel combustion.

3) Feed water pump

This pump uses to supply water to the boiler.

4) Combustion chamber: –

Used to transfer the heat generated in the grater to the fire hose which transfers the heat to the water.

5) Ash pit: –

After the fuel is completely burned, the ash pit contains ash.

6) Fire hose: –

In the center of the area, there is water from the eaves and hot air flows from the grater to the pipe.

7) Side flue: –

A chimney is a pipe through which hot gas enters after passing through a fire pipe. The flue adjacent to the horizontal body is called the lateral flue.

8) Lower the smoke outlet: –

The lower exhaust pipe is located under the horizontal chamber. Bring the smoke from the side draft to the chimney.

9) Fireplace

A chimney is a long vertical pipe that absorbs smoke from the lower pipe and sends it into the atmosphere with the help of a pack of cigarettes.

10) Brick arch

A brick arch was designed to prevent ash from entering the pipe.

The principle of operation of the Cornwall boiler:

The active ingredient here is coal.

In the furnace, the coal is supplied as fuel and sent to the furnace.

Here we burn fuel by giving a certain amount of fire to the fuel. So, we know this is a large single tube boiler.

Coal is burned to generate heat and then sent to a pipe, around which water is placed.

Why does water surround itself automatically? Since we supply water here and use tools, the water level indicator measures the water level.

So now the heat of the tube is equal to the heat that the water started to heat, that is, the water first turns into saturated steam and then heats up and turns into superheated steam, which now works. Steam can also be used for various purposes.

At the same time, the ash from burning coal enters the ash pit here, and from there, into the smoke chamber, the gas enters the atmosphere through the chimney.

We take the ash from the system and clean it.

Advantages of Cornish boilers

The advantages of a Cornish boiler are as follows:

  • Simple design, convenient construction, and convenient operation.
  • Cornwall boilers are small, portable, and easy to install.
  • Low maintenance costs. Only one or two maintenance inspections per year are required.
  • Due to the low pressure, the possibility of the boiler exploding is very low.

Disadvantages of Cornish boiler

The disadvantages of Cornish Boiler are:

  1. The steam production rate of 1350 kg per hour is very low and is not available in large power plants.
  2. Cornwall boilers have less pressure and therefore less efficiency than other boilers.
  3. If you accidentally blow up the boiler, you can cause a lot of damage
  4. Needs more floor space.
  5. There is no specific direction for water circulation.

Cornish boiler application:

The following applications for Cornwall boilers are:

  • Used in the textile, chemical, and paper industries as well as in laboratories and oceans.
  • Used to generate steam to run steam turbines.

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