Standard Operating Procedure for Engineering Boiler Operation
Engineering Boiler Operation Standard Procedure:
The main purpose of the Boiler operation SOP is to ensure that the hotel boiler is maintained in excellent condition and that hot water supply is available to all guest rooms and public areas.
Boiler operation is a critical aspect of any engineering process that relies on steam. It is therefore important to have a Standard Operating Procedure (SOP) in place to ensure that the boiler is operated safely and efficiently. The SOP should include guidelines on how to start up the boiler, how to maintain the correct water levels, how to regulate the fuel supply, and how to shut down the boiler in case of an emergency.
One of the key elements of the SOP is to ensure that the boiler is regularly inspected and maintained. This includes checking for any signs of wear and tear, replacing any damaged parts, and keeping the boiler clean. In addition to this, the SOP should outline the safety protocols that need to be followed when working with a boiler. This includes wearing appropriate personal protective equipment (PPE), ensuring that the boiler is properly ventilated, and following any other safety guidelines that have been put in place.
Another important aspect of the SOP is to ensure that all operators are properly trained in boiler operation. This includes understanding the various components of the boiler, knowing how to read the gauges and indicators, and understanding the different types of fuels that can be used. By following a well-defined SOP, it is possible to ensure that the boiler is operated safely and efficiently, reducing the risk of accidents and minimizing downtime.
1) Fill the feed water in the coil with the help of the feed water pump till the time water comes out of the by-pass line.
2) The boiler can be fired by putting the rotary switch in the fire position. (or as per the operation manual supplied by the manufacturer.)
3) The below sequence will take place for the firing to start in the boiler:
* A signal is given to the sequence controller from the ON/OFF pressure switch.
* After that blower and fuel pump are started.
* Then after the pre-purging time is over, the ignition and burner are energized to produce a spark and spray fuel in the combustion chamber.
4) Once the boiler is started the steam pressure will start rising and when it crosses 3-4 Kg/cm close the by-pass valve and let the boiler develop pressure to the maximum set pressure i.e. 10 Kg/cm
5) The boiler will automatically stop at the set pressure by the high steam pressure switch.
6) The min valve should be opened slowly so that pressure does not drop below 5 Kg/cm because it is low-pressure safety.
7) Then as per the demand of steam boiler will work ON-OFF.
8) If the boiler is running continuously for 8 hours. The boiler must be given a blow-down so that if any scale has settled at the bottom of the coil they will come out so that the possibilities of sudden coil chocking will be eliminated and monitoring over the quantum of scale formation can be done.
To perform blowdown the following points to be noted:
a) Let the boiler go at a high (set temperature) preferably to be noted.
b) Close the main steam stop valve and open the blow down valve.
c) Let pressure drop to 6 Kg/cm pressure drop count time, that will be a blowdown time.
9) Again blow-down valve shall be closed and by-pass valve should be open and the coil should be filled up with water.
10) For cooling let the temperature be brought down to 100 deg. C.
Training Summary questions:
Q1. What is the purpose of the boiler SOP?
Q2. What is the sequence for starting a fire in the boiler?
Q3. What stops the boiler from high pressure?
Q4. Explain the blowdown process.
Q5. Who is responsible for inspecting the boiler plant?
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SOP Number: Hotel Engineering SOP – 03 Department: Engineering and Maintenance Date Issued: 10–Feb-2018 Time to Train: 30 Minutes
