Question 100Steam Plants - Assistant Engineer70% to pass
High-pressure steam drains are normally discharged to the _______________.
AI Explanation
The correct answer is B) DC heater.
High-pressure steam drains are normally discharged to the DC (deaerating) heater. The DC heater is designed to receive high-pressure steam drains and condensate returns, where the steam is used to heat and deaerate the feedwater before it is sent to the boiler. This process helps remove dissolved gases, such as oxygen and carbon dioxide, from the feedwater, which can reduce corrosion in the boiler system.
The other answer choices are incorrect because: A) the atmospheric drain line is typically used for low-pressure drains, not high-pressure steam drains; C) the reserve feed tank is for storing feedwater, not for discharging high-pressure steam drains; and D) the drain and inspection tank is used for collecting and inspecting various drains, but not specifically for high-pressure steam drains.
Related Questions
#98 Why is it necessary to have a relief valve protecting the deaerating feed tank from internal pressure? #99 To provide emergency feed water supply to a steaming boiler, if it becomes necessary to secure the DC heater, suction should be taken on the distilled water tank using the _______________.#101 During cold ship start-up, you should open the feed water outlet and condensate valves to a DC heater in order to _______________.#102 The gland exhaust fan draws steam and non-condensable vapors from the gland exhaust condenser and discharges to the _______________.#103 Which of the following repairs should be made to a badly warped boiler tube?