Steam Plants: Identifying and Preventing Water Hammer

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What is the main focus of this objective?

Preventing and responding to water hammer (correct)

Identifying different types of piping systems

Understanding the process of steam generation

Exploring the effects of water hammer on steam plants

How is water hammer recognizable?

By the sudden acceleration of fluid

By the introduction of steam into cold steam lines

By the closure of discharge check valves

Through the shaking of piping systems (correct)

What causes water hammer to occur when pumps stop?

Sudden acceleration of fluid

Closure of discharge check valves

Introduction of steam into cold steam lines

Sudden closure of discharge check valves (correct)

What can the consequences of water hammer range from?

Severe shock to pipe failures Signup and view all the answers

When does water hammer occur when steam is first admitted into cold steam lines?

When steam is first admitted Signup and view all the answers

What is imperative for operators in terms of water hammer?

Being familiar with methods of water hammer prevention Signup and view all the answers

What can cause water hammer?

Sudden stoppage or sudden acceleration of fluid Signup and view all the answers

What can cause sudden stoppage?

Swing check valves closing suddenly when pumps stop or control valves close quickly Signup and view all the answers

What causes sudden fluid acceleration?

Pumps starting suddenly, with discharge valves fully open Signup and view all the answers

How can water hammer be prevented?

Operating equipment carefully Signup and view all the answers

What is a design solution to prevent water hammer in steam systems?

Install warm-up valves around steam valves on steam lines larger than DN 50 Signup and view all the answers

What should be done if water hammer occurs while placing a boiler on-line?

Turn off the boiler and close the non-return valve Signup and view all the answers

How can malfunctioning steam traps be addressed?

Open steam trap test valves, or use other means to locate malfunctioning steam traps Signup and view all the answers

What can help remove moisture from the steam in longer saturated steam lines?

Install steam separators in longer saturated steam lines Signup and view all the answers

How can fluid velocities be reduced in piping systems?

Redesign piping systems so that fluid velocities are lower Signup and view all the answers

Steam Plants: Identifying and Preventing Water Hammer

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