Table of Contents
How do you start a boiler feed water pump?
START THE Boiler Feed Pump
- check starting current and time.
- Check the recirculation valves opens and proper suction flow in maintained.
- Check electrically operated cooling water valve opens and cooling water flow is established.
- Check warm up valve has closed.
- Check auxiliary lube.
- Check feed pump vibration are normal.
How does a boiler feed pump work?
The work of a boiler feed pump is to discharge the condensate boiler feed water from hotwell to the boiler drum. With the rotation of shaft and impeller the hot feed water is thrown outwards radially across the walls of the pump; along the path of the flow. This increase the speed of the fluid so does the pressure.
How do you heat up boiler feed water?
Boiler feedwater is an essential part of boiler operations. The feed water is put into the steam drum from a feed pump. In the steam drum the feed water is then turned into steam from the heat. After the steam is used it is then dumped to the main condenser.
What is water feed pump?
A feed pump is a type of pump that supplies water to a boiler to produce steam. For industrial purposes, a feed pump supplies a liquid for further processing. These pumps are high-pressure pumps and are generally of two types: Positive displacement type feed pumps.
What is the function of boiler feed pump Mcq?
Explanation: Function of feed water pump is to pump water at high pressure to the water space of the boiler drum.
What is the function of the feed water pump of a boiler answer?
Boiler feedwater pumps transport water into boilers using high pressure. Thus, a boiler feed pump is built to handle extremely high water pressure to deliver the feedwater into the boiler system. Generally, a boiler feed pump can handle the pressure of up to 100 bar.
What is the process of boiler?
A boiler incorporates a firebox or furnace in order to burn the fuel and generate heat. The generated heat is transferred to water to make steam, the process of boiling. This produces saturated steam at a rate which can vary according to the pressure above the boiling water.
What are the common things to prepare prior to start the boiler?
Immediately prior to boiler start-up perform the following:
- Check that all ventilation and combustion air openings and louvers are clean and free of debris.
- Verify boiler water level.
- Check that all stack dampers are open.
- Examine the boiler furnace for foreign material.
What are the requirements for boiler feed water?
Characteristics of boiler feed water
| Working Pressure (Bar) | ||
|---|---|---|
| 75 – 100 | ||
| Dissolved oxygen (measured before oxygen scavenger addition) | mg/l | 0.02 (Physical removal of dissolved oxygen) |
| Total hardness | French degrees | 0.05 |
| Oily matter | mg/l | 0.05 |
How do you remove oxygen from boiler feed water?
Heat is the most common method for removing oxygen. Typical deaeration for smaller boilers utilizes a spray or combination spray and tray system to remove oxygen. The feed water is sprayed into a stream of 5 psig steam for efficient heat transfer and subsequent oxygen removal.
What type of pump is boiler feed pump?
centrifugal pumps
Today, all boiler feed pumps are centrifugal pumps. The design of boiler feed pumps regarding power input, material, type of pump and drive is largely governed by the developments which have taken place in power station technology.
What are the steps to start a boiler feed pump?
To start boiler feed pump we need to line up the system; and follow the following steps:- Make sure the hotwell have at least minimum feed water to start the pump. The temperature difference between the feed water in hotwell and boiler water must always be within 0 to 60 degree Celsius.
What’s the correct procedure for filling up a boiler?
Open the filling line isolation valve Gradually and fill up the boiler. -Insure that the cooling water is available for the boiler fee pump for its gland cooling. Also check healthiness of pump . -Start the boiler feed pump keeping the discharge valve in closed position.
How is the water pumped into the boiler?
Economizer, water wall panel and evaporator are to be filled before boiler light up started. We all known about very well that water is pumped into the boiler steam drum with the help of B.F.P (Boiler Feed Pump) . This pump take the water from the Deaerator and reaches the water into drum through economizer, water wall and evaporator .
How to check boiler feed pump for PTW?
1. Insure that no PTW (Permit to work ) is pending 2. Check feed pump gauges in UCB ( unit control Board )are in proper working order 3. Check all remote operated valves have been given power supply and confirm their proper operation with local operator. 4. Check Deaerators level is normal 5. Check lube. Oil pressure is OK 8.