Please tell me about how boiler works in its operation, its different parts and their functions, boiler temperature and pressure, and any information you think that might help.Thank you.
Cleaver Brooks Boiler Book
First there are two types of boilers, the fire tube and shell type boilers. The fire tube is common for small ones with operating pressures of 300 psig or lesser.Boilers are usually fired by industrial fuel oils or preheated bunker as commonly used. Ignition is done by liquefied petroleum gas thru an ignition transformer and spark plug. Water is continuously feed to the boiler to maintain its water level. Pressure is maintained by a pressuretrol and set before the boiler is operated.Other safety devices are relief valves and flame safeguard cut-off which switches off when no flame is detected.
There are three basic types of boiler. 1, A simple tank made from plate steel containing a supply of water, a source of heat and distribution pipes, it is fitted with a safety valve designed to relieve excess pressure. This type is limited to pressures of less than 30 PSI. 2, A water tube type of boiler, it is more efficient than the tank type. Water is circulated through pipes that are heated by an open flame that plays over the entire length of the tubes. It also has safety valves. This type is usually used in large apartment buildings and ships. It operates at pressures of 100 PSI. 3, A fire tube boiler, this type has flame running through the pipes to boil water that is in the main body of the boiler, this is a very sturdy boiler and can produce super heated steam, it is used in ships and the pressure is 100 PSI.
