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What is prds in powerplant?
PRDS: Pressure Reducing and DeSuperheating System. It is a combination of Control Valve for the pressure reduction purpose & atomizing nozzles, through which water is sprayed into steam for reducing the temperature.
What is power plant Attemperation?
Abstract. An attemperator is a part of the 4-stage superheater in the boiler system of the thermal power plant. The attemperator receives the over-heated steam and makes the steam with proper temperature by adjusting the control valve of the cold steam.
What is prds?
PRDS: Pressure Reducing and DeSuperheating System. Steam PRDS is used for Steam Conditioning Services for reduction of pressure and temperature of steam. It is a combination of Control Valve.
What is Attemperation method?
STEAM TEMPERATURE CONTROLS IN POWER PLANT BY DESUPERHEATING OR ATTEMPERATION METHOD. this is a commonly used method to control superheated steam temperature. In this method cold condensate is spryed directly to the superheated steam.
What is Attemperation water?
Attemperation is the process of partially desuperheating steam by the controlled injection of water into the superheated steam flow. The degree of superheating will depend on the steam load and the heat available, given the design of the superheater.
What is difference between Attemperator and desuperheater?
is that desuperheater is a device that reduces the temperature of superheated steam, and recovers useful heat in the process while attemperator is a device that regulates the temperature (especially in a boiler) by passing hot or cold water through a coil of piping.
What is meant by Attemperator?
Definition of attemperator : a coil of pipe through which hot or cold water may be run for regulating temperature.
What type of boiler is a Benson boiler?
water tube boiler
The Benson boiler is a water tube boiler, which accomplishes its job on the principle of the critical pressure of water.
What is an Attemperator?
What is the difference between Attemperator and desuperheater?
What is the major disadvantages of the Benson boiler?
Explanation: The major disadvantage of the Benson boiler is that when water transforms into steam in the convective section of the evaporator, salts are deposited in the transformation zone.
What is the capacity of Benson boiler?
Capacity: The capacity of the Benson boiler is about 150 tonnes/hr at a pressure of 210 (kg force per square centimeter). and at a temperature of 650ºC.
What is the use of PRDS in steam power plant?
PRDS: pressure reducing Desuperheating Steam is usually known as Auxiliary Steam having temp. of 290–300 Celsius with pressure 7–8 Bar range. It is generally used steam for many purpuse like HFO heating ,soot blowing ,prewarming of turbine etc. Attremperation’s function to reduce temp. of steam to the desired value.
What is the function of PRD?
Pressure Relieving Devices (PRD) are components used in refineries, chemical plants, and other similar facilities to prevent pressure vessels and other equipment from overpressurization by relieving excess pressure when necessary. They can be used to release gas, steam, liquids, or vapors.
What is high capacity PRDS system?
System Description- High Capacity • High capacity PRDS comprises of steam pressure reducing control valve, motorized upstream isolating valve, downstream manual isolating valve, one spray water temperature control valve and one de-superheater.
Why indinditech PRDS station?
IndiTech PRDS station is a modular steam conditioning unit to reduce the steam pressure & temperature at the point of usage, and it can be directly installed into your existing steam network. Some applications of PRDS stations are enumerated below: PRDS for process heating / cooling applications in sugar, food, textile, paper etc. plants
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