Feed Pump


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feed pump

[′fēd ‚pəmp]
(mechanical engineering)
A pump used to supply water to a steam boiler.

Feed Pump

 

a pump that feeds water to a steam boiler. Feed pumps are of the piston and centrifugal types and are powered by steam or electricity. Steam-jet injectors are also used as feed pumps. The pressure created by the feed pumps of circulation boilers is 0.2–0.3 meganewtons per sq m (2–3 kilograms-force per sq cm) greater than the pressure in the boiler drum. The head of the feed pumps of single-pass boilers must exceed the hydraulic resistance of the entire water-steam circuit.

The feed pump is an important element of a boiler unit, since even a brief interruption in the supply of feedwater to the boiler can result in a breakdown. Rates of discharge of feed pumps and the types of feed pumps and pump drives authorized for industrial heating systems and power plant boilers are specified in the USSR by the boiler inspection regulations and the regulations for maintenance of electric power plants.

feed pump

A pump which supplies feed water to a steam boiler.
References in periodicals archive ?
Tender notice number : VCSM RC NO 653 BOILER FEED PUMP STRAINERS
When the chamber becomes completely full, the feed pump stops and the pressure that seals the plates is released.
Vespel(R) CR-6100 is easily machinable and low wear rate, low coefficient of friction, low coefficient of thermal expansion, resistance to thermal shock and durability of vespel(R) CR-6100 are attributes in boiler feed pump wear ring and under pump operating conditions such as extreme cavitation and high vibration.
This design relies entirely on the hydraulic pressure (usually in excess of 200 psi) of the feed pump to achieve dewatering.
On any given day, that feed pump metes out sodium hydroxide to maintain a pH level that prevents the leaching of lead and copper from domestic plumbing.
The leakage was discovered last Wednesday in a water feed pump valve in the No.
On tractors where the fuel tank is mounted above the crankshaft center line there is normally no need to install a feed pump as the gravitational feed will be sufficient to keep the pump supplied.
Tenders are invited for Tender for the spare of boiler feed pump ksb make
It can be used with or without a feed pump and has the feed channel separated from the drive work chamber, which is said to allow high-pressure filling of highly cots fluids.
The processor comes equipped with a product feed pump and heat exchanger.
The A7VK can be used with or without a feed pump. (Bosch Rexroth)
The Combovac uses a screw feed pump to efficiently push product into a rotary vane pump and from there to the next processing step.