What are the parts of water tube boiler?
A water tube boiler is typically formed of four parts, a lower feed water drum – sometimes known as a mud drum – an upper steam drum with water surface from which the steam is evolved, water tubes connecting the two drums together and a super heater / economiser section (depending on the quality of steam required).
What is the pressure range for water tube boiler?
Water-tube boilers are used in power station applications that require: A high steam output (up to 500 kg/s). High pressure steam (up to 160 bar). Superheated steam (up to 550°C).
Why high pressure boilers are water tube boilers?
A high pressure boiler is a shell and tube heat exchanger that use boiled water to create steam or high pressure hot water. Using water filled tubes in a metal tank or enclosure, they create power by converting water into steam through thermal energy, which is used to power equipment.
What are the advantages of water tube boiler over fire tube boiler?
| Fire Tube Boiler | Water Tube Boiler |
|---|---|
| The overall efficiency of this boiler is up to 75% | The overall efficiency is up to 90% with the economizer |
| Water doesn’t circulate in a definite direction | Water circulates in a well – defined direction |
What is the working principle of a bent tube boiler?
Working Principle of Bent Tube or Stirling Boiler. The feed water first enters into right most upper drum. Due to more density this water comes down in the lower water drum. The water within that water drum and the connecting pipes to the other two upper drums, are heated up and consequently steam bubbles are produced.
How is water supplied to a water tube boiler?
The water tube boiler diagram is shown below, and these two drums are associated via two tubes such as downcomer and riser. At first, the water is supplied into the steam type drum with the help of a water pump. Whenever the fuel is burned, then hot gases will be generated that are permitted to supply in the shell part of the boiler.
Where does steam come from in a bent tube boiler?
Due to more density this water comes down in the lower water drum. The water within that water drum and the connecting pipes to the other two upper drums, are heated up and consequently steam bubbles are produced. This is the most basic working principle of bent tube boiler.
What is the working principle of a cross drum boiler?
The working principle of cross drum boiler is same as longitudinal drum boiler. The feed water is fed to the cross drum through feed water inlet. Then this water comes down through the down-comer pipe and enters into inclined water tube placed in hot chamber.
Working Principle of Bent Tube or Stirling Boiler. The feed water first enters into right most upper drum. Due to more density this water comes down in the lower water drum. The water within that water drum and the connecting pipes to the other two upper drums, are heated up and consequently steam bubbles are produced.
What to do when your boiler is shut down for repair?
The following describes the measures to be taken when the boiler is shut down for repair or inspection. Clean the boiler from soot with water. Operate the burner for at least 15 minutes after the soot removal to dry out the remaining water. Stop the boiler as mentioned previously. Check the furnace and the pin tubes with regard to cleanliness.
Which is the best model of a water tube boiler?
DAC Worldwide’s Water Tube Boiler Model (355) depicts a highly-detailed scale model of a common water tube boiler in a technically-accurate, professionally-crafted design. The model supports training in the operation and maintenance of industrial boilers found within utility systems in industrial facilities.
The water tube boiler diagram is shown below, and these two drums are associated via two tubes such as downcomer and riser. At first, the water is supplied into the steam type drum with the help of a water pump. Whenever the fuel is burned, then hot gases will be generated that are permitted to supply in the shell part of the boiler.
