Badcock And Wilcox Boiler Pptx To Pdf

May 16, 2014 - scanner that will enable doc. Wilcox gauge, where flood. The north end of the Badcock Fur. BOILER FOR SUWANNEE COUNTY.

Now let’s discuss the working of Babcock and Wilcox boiler step by step. • First the water starts to come in the water tubes from drum through down take header. • The water present in the inclined water tubes gets heated up by the hot flue gases. The coal burning on the grate produces hot flue gases and it is forced to move in zigzag way with the help of baffle plates. • As the hot flue gases come in contact with water tubes, it exchanges the heat with water and converts it into steam.

• The steam generated is moved upward and through up take header it gets collected at upper side in the boiler drum. • An anti-priming pipe is provided in the drum. This anti-priming pipe filters the water content from the steam and allows only dry steam to enter into superheater. • The superheater receives the water free steam from the anti-priming pipe.

It increases the temperature of steam to desired level and transfers it to the steam stop valve. • The superheated steam from the steam stop valve is either collected in a steam drum or made to strike on the steam turbine for electricity generation. Lisa gerrard ashes and snow rare coins. The Babcock and Wilcox boiler are generally used to produce high pressure steam in power generation industries. The high pressure steam so generated is used to produce electricity. Advantages and Disadvantages Advantages • Steam generation capacity is high. It is about 2000 to 40000 kg/hr.

• It occupies less space. • Replacement of defective tubes is easy. Cisco router ios image file. • It is the only boiler that is used to generate large quantity of heat in power stations. • The draught loss is minimum. • Inspection of this can be done anytime during its working. Disadvantages • High maintenance cost. • It is not much suitable for impure and sedimentary water.

In case of impure and sedimentary water, scale may deposit in the tubes and this leads to overheating and bursting of tubes. That’s why water treatment is must before feeding into the boiler. • Continuously supply of feed water is required for the working. In the case if feed water is not continuously supplied even for a short period of time, the boiler gets overheated. Water level must be carefully watched during the operation of the Babcock and Wilcox boiler.