Previous in Forum: Thrust Bearing Clearance   Next in Forum: Sewage Treatment Plant Techniques
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
3 comments
Rate Comments: Nested
rajiv_dhenge
Participant

Join Date: Apr 2010
Location: Kumbakonam, Dist Thanjore, Tamil Nadu (India)
Posts: 1

Steam Turbine Lubeoil vapour extraction syatem

04/27/2010 1:35 AM

Sir

We have siemens steam Turbine (C240S-1) of 55 MW. For which we have luboil system for its bearing lubrication. Its main oil tank has demister fans Type SAP_530 (5.5 KW, 2880 rpm and volume 590 m3/hr). Generally we are keeping the system under vacuum between -90 to - 120 mmwc. We observed the carry over of lubeoil vapour and loosing the substantial amount of oil. Kindly suggest the remidial action to be taken to minimise the oil carry over to atmosphere?
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Anonymous Poster
#1

Re: Steam Turbine Lubeoil vapour extraction syatem

04/27/2010 1:55 AM

From where to where is this "carry over" occuring?
Register to Reply
Tornado
Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 21017
Good Answers: 795
#2

Re: Steam Turbine Lubeoil vapour extraction syatem

04/27/2010 2:00 AM

I am not familiar with particular scheme, but why have positive ventilation at all, rather than simply an atmospheric "breather," on the main oil tank?

__________________
 In vino veritas; in cervisia carmen; in aqua E. coli.
Register to Reply
VCM INSPECTOR
Active Contributor

Join Date: Apr 2010
Location: Sohar Refinary OMAN
Posts: 16
#3

Re: Steam Turbine Lubeoil vapour extraction syatem

04/27/2010 4:52 AM

ed What i understand that are missing or lose amount of lube oil while the turbine is on operation. Firest of all you have to check and confirm there is no oil leak from the other source such as you have to check the valves all type and piping and piping flange.

If the oil was confirmed from the lube oil tank vent fan so you have to

1-check the fan filter perhaps clogged.

2-Check the fan filter mech maby its so larg than design so you have to modfiy.

3-Check the fan filter condition maby deform.

4-Check the fan it self maby losing some won clerance.

and finally you have back to the fan section drawing.
Register to Reply
Register to Reply
Have a Different Question?
3 comments
Copy to Clipboard

Users who posted comments:

Anonymous Poster (1); Tornado (1); VCM INSPECTOR (1)

Previous in Forum: Thrust Bearing Clearance   Next in Forum: Sewage Treatment Plant Techniques

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Mechanical Engineering:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (56 right now)
Show Members
Advertisement