basket tips 1

[ebwease]

What are "basket tips" as they relate to measurement of main condenser absolute pressure?

 

[samuelliu]

As the steam velocities in a condensing turbine exhaust annulus can affect the static pressure reading, pressure measurement on a condensing turbine exhaust must be carefully placed and use basket tips. To prevent
this, cages or baskets are put on the tip of the pressure sampling line to prevent velocity caused static pressure
errors.

 

[chicopee]

TRYING TO READ BETWEEN THE LINES OF SAMUELLIEU'S REPLY, IT APPEARS TO BE A DEVICE THAT ELIMINATES THE EFFECTS OF VELOCITY PRESSURE ON THE STATIC GUAGE SAMPLING LINE.

 

[ebwease]

Are these basket tips usually supplied by the condenser manufacturer or the transmitter manufacturer? Procurement source?

 

[samuelliu]

It could be provided by either condenser manufacturer or turbine vendor. If not, you may make it at the field. It is a very simple part, with one 3/4" extra heavy SS pipe having 21 holes of 1/8" and one screen made by SS mesh wire (No. 6 or 7).