where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -

LECOEUR ELECTRONIQUE
The Specialist of electronics for ultrasonic testing
4596 views
Technical Discussions
Muhammad Hussain
Muhammad Hussain
15:26 Feb-01-2010
Sensitive Leakage detection

We are experiencing very minute leakage in our vertical type exchanger ( Urea Stripper) We are unable to detect the laekage, however during opertaion we know that the leakage is there ( conductivity of 35 micro siemen / cm).
We have tried Ammonia test as well as Helium leak test ( sniffer method) but without success. No of tubes is 2500 (approx)
Is there any other NDT technique to detect the leak , like radioactive tracer ( i dont much about it either)

 
 Reply 
 
Dent
Consultant, NDE Manager NDELevel III/3
NDT Consultant, Canada, Joined Nov 1998, 252

Dent

Consultant, NDE Manager NDELevel III/3
NDT Consultant,
Canada,
Joined Nov 1998
252
16:43 Feb-01-2010
Re: Sensitive Leakage detection
In Reply to Muhammad Hussain at 15:26 Feb-01-2010 (Opening).

What product is in the exchanger? What direction is it leaking? (tube to shell or shell to tube)

How did you perform the Helium sniffer test? What pressure and concentration of He? What equipment did you use? Helium testing performed properly would be the best test. Was it dry before helium testing?
Contact me by e mail and maybe I can help.

 
 Reply 
 
Tuan Dang Dinh
Tuan Dang Dinh
12:14 Feb-02-2010
Re: Sensitive Leakage detection
In Reply to Muhammad Hussain at 15:26 Feb-01-2010 (Opening).

Hello Mr. Muhammad Hussain,

It is possible to detect leak of pressure/vacuum systems by ultrasonic condition monitoring. Please refer to Sonatest Soundscan 101 at bellow link:

http://www.sonatest.com/products/multi/soundscan/Overview.html

 
 Reply 
 
Tuan Dang Dinh
Tuan Dang Dinh
12:27 Feb-02-2010
Re: Sensitive Leakage detection
In Reply to Muhammad Hussain at 15:26 Feb-01-2010 (Opening).

Hello Mr. Muhammad Hussain,

It is possible to detect leak of pressure/vacuum systems by ultrasonic condition monitoring. Please refer to Sonatest Soundscan 101 at bellow link:

http://www.sonatest.com/products/multi/soundscan/Overview.html

 
 Reply 
 
John O'Brien
Consultant, -
Chevron ETC , USA, Joined Jan 2000, 280

John O'Brien

Consultant, -
Chevron ETC ,
USA,
Joined Jan 2000
280
18:12 Feb-07-2010
Re: Sensitive Leakage detection
In Reply to Muhammad Hussain at 15:26 Feb-01-2010 (Opening).

Place pressure on the shell side and then test each tube using the Physical Acoustics 9610 potable AE instrument. We have done this numeorus times including a 3600 tube condensor its fast and worked even when we could not find the leak by other methods.

 
 Reply 
 

Product Spotlight

Robotic laser shearography enables 100% inspection of complex, flight-critical composite structures

An article in “Composites World Magazine” showcases Non Destructive Testing of aero-structures
...
with Laser Shearography. Over the years Dantec Dynamics has supplied many solutions for the aerospace industry. Referring to specific customer projects several of these cases are examined to outline the advantages of using Laser Shearography for automated defect detection.
>

Eddy Current inspection : RotoETscan Rotating Head

The rotating head RotoETscan detects the presence of longitudinal surface or sub surface defects a
...
t high speed. The rotating head is often installed directly on the production line. It is generally dedicated to the control of long products such as tubes, bars and wires, made of ferrous or non-ferrous material. It can also be used for inspection of small parts (billets).
>

YXLON Cougar EVO

Scalable small footprint X-ray inspection systems for assembly and laboratory applications. The
...
YXLON Cougar EVO series was designed to provide the "best-in- class" inspection solutions for SMT, semiconductor, and laboratory assembly applications, while maintaining a small system footprint for maximum convenience. With optimized software and hardware, these systems produce higher quality and more consistent results than other electronics inspection systems currently on the market.
>

HARDNESS TESTER TKM-459CE combi

TKM-459CE combi applies 2 methods of hardness control: UCI and Leeb. It provides high-accuracy tes
...
ting of metals and alloys as well as items of different sizes and configurations, their hardened layers and galvanic coatings. Device represents results in HB, HRC, HV and others. Shock-, dust- and water-proof housing with intuitive software make this gauge easy to use in all working conditions.
>

Share...
We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
Accept
top
this is debug window