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satyanmeena
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Join Date: Apr 2011
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Sudden Opening And Closing Of Ipesv In 250 Mw Steam Turbine

04/20/2011 10:36 AM

LET DISCUSS ONE THING, SUPPOSE 250MW KWU DESIGN STEAM TURBINE. MACHINE IS RUNNING ON FULL LOAD AND SUDDENLY IPESV GETTING CLOSED FOR A MOMENT(SAY 10SEC) AND AGAIN OPENED. OR FREQUENTLY GETTING CLOSE AND OPEN. WHAT WOULD BE THE EFFECT ON TURBINE.

RESULTS HP EXHAUST TEMPERTURE WILL SHOT UP APPROX. 700-800DEG C BUT WHY? WHAT WOULD BE THE EFFECT ON HP TURBINE BLADES?
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Tornado
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Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

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#1

Re: Sudden Opening And Closing Of Ipesv In 250 Mw Steam Turbine

04/20/2011 11:48 AM

Please turn off the all-caps key.

What is IPESV (which should be capitalized)? Intermediate pressure .... solenoid valve? What circuit controls this valve that would allow it to be closed momentarily?

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satyanmeena
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Join Date: Apr 2011
Posts: 3
#2
In reply to #1

Re: Sudden Opening And Closing Of Ipesv In 250 Mw Steam Turbine

04/20/2011 12:10 PM

Thanks for response.

IPESV means intermediate prsessure emergency stop valve.

these are isolating the IP turbine from HRH line.
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

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#4
In reply to #2

Re: Sudden Opening And Closing Of Ipesv In 250 Mw Steam Turbine

01/10/2023 7:26 AM

It looks like a fault on the equipment that is operating the <...IPESV...>.

For one thing, it might not be suitable for it to self-reset, for example. Without a Functional Design Specification dosument being to hand it is difficult to comment further.

IP - Definition by AcronymFinder

HRH - Definition by AcronymFinder

It is always a good plan to define abbreviations before using them.

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otha
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#3

Re: Sudden Opening And Closing Of Ipesv In 250 Mw Steam Turbine

04/20/2011 5:16 PM

What type control system do you have? EHC, MHC. What is the age of the turbine.

If it is an EHC unit you may have a control function that looks for a fault to ground and causes quick closing and reopening of the valves to keep a machine with a loose tie to the system from slipping a pole. Kind of far fetched. but who knows.

Sounds like you need the help of KWU.

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PWSlack
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#5
In reply to #3

Re: Sudden Opening And Closing Of Ipesv In 250 Mw Steam Turbine

01/10/2023 7:28 AM

EHC - Definition by AcronymFinder

MHC - Definition by AcronymFinder

KWU - Definition by AcronymFinder

Really? <sigh>

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