How do you start a cold condition on a boiler?

How do you start a cold condition on a boiler?

Begin warming the boiler slowly, allowing for gradual expansion. Open the (automatic) non-return and main steam stop valves. Open all drain valves in the system to allow condensate to exit the piping before steam fills the system.

When starting a boiler manually What is the first thing to do?

Start filling with soft water. Manually inject boiler water treatment chemicals including oxygen scavenger chemicals, so that the chemicals are added with the fill water. Once full to the operating level, open the fuel system and fire the boiler. Carefully bring the pressure up to 10-15 PSIG, with the vent valve open.

What is important to check when starting up the boiler from cold ships?

Before start-up of the boiler plant, following general work and check procedures must be considered.

• Check that the main steam valve, by-pass valve and circulation valves if provided, scum valve, and blow-down valves are closed.
• Open the feed water valves and the air valve.

What is required before starting a burner?

Prior to Lighting Bunsen Burner: Remove all papers, notebooks, combustible materials, and excess chemicals from the area. Tie-back any long hair, dangling jewelry, or loose clothing. Use correct tubing (butyl rubber hose). Inspect hose for cracks, holes, pinch points, or any defect and replace if necessary.

What are the preparations to be done before blowing down the boiler?

The following steps should be taken to blow down a boiler.

• Open the quick-opening valves (ones closest to the boiler).
• Open the slow-opening valve.
• Blow down the boiler for the amount of time specified by your water management consultant by opening and then closing the slow-opening valve.
• Close the slow-opening valve.

How do you start a pilot light?

If you have a gas furnace, here are the steps on how to light a pilot light.

1. First, locate the pilot valve on the furnace.
2. Find the gas valve and turn it to the “off” position.
3. Turn the valve to the “pilot” position.
4. Press and hold the reset button.
5. If the reset button fails, ignite the lighter.

When does combustion take place in an AFBC boiler?

In afbc boiler combustion is take place at about 850- 950 degree Celsius. In this article we discussed about the afbc boiler cold start up and what the precautions are take before start up the afbc boiler light up?

What is the boiler cold start up procedure?

Start the ID Fan, PA Fan and SA fan as per fan start-up sequence described in boiler cold start up procedure .Ensure minimum 30% air flow and maintained draft. Open the start up vent valve; ensure that minimum 20% MCR steam flow beacuse of maintain the flow through superheaters.

How is the boiler carried out in cold condition?

The boiler is carried out firing from cold condition to normal working pressure condition very slowly to avoid thermal stress. Check the boiler blow down valve in close position. Shut the main steam stop v/v.

What should I do before starting my new boiler?

For a dry start, the boiler will have to be filled with water, for a wet layup boiler, the water level may have to be dropped and chemistry adjusted before bringing online. Open the sight gauge and water column high- and low-water shut-off valves.