Corioliis mass flow meter no reading 1

[MIANCH]

Hi als,
we installed coriolis mas flow meter on methanol truck loading vertical position. you can see in this photo, however on commissioning flow meter does not read flow. can anyone explain whither installation is correct or not.
Thanks.

 

[3DDave]

The orientation should not matter. Is it plugged in?

 

[MIANCH]

not plugged in.

 

[pierreick]

Hi,
Take a look at the link underneath.
Did you talk to Vendor? Did you get data about Density, Temperature displayed on the flow meter? These data are available, together with the flow on display.
Pierre

https://www.mega-meter.com/info-det...lection,influence due to vibration resonance.

 

[MIANCH]

Hi, we have everything for Methanol, this flow meter range is 13-50 m3/hr while our pump capacity is 215 m3/hr and pressure is 8 barg.
is there is high flow rate problem for this flow meter?

 

[pierreick]

Hi,
Did you contact Vendor, what is the feedback?
This equipment is not suitable for two phase flow. Possibility for air entry /bubbles formation?
Do you get any signal or no signal? Is the equipment well connected?
What says the Instrument guy who installed the equipment?
Why don't you have the representative of the vendor at site during commissioning?
You seem not knowing what you can get from the meter.

Pierre

 

[MIANCH]

Pierreick,
Methanol is single phase liquid. but will ask instrument guy for signal connection. vendor specialist was not present the moment they commissioned.

 

[hacksaw]

It may be single phase at 50 m3/hr but not at 250 m3/hr

 

[Vishal Kumar]

Better to check if everything power supply, hot loop, range incorporation , fluid data is incorporated then to move on to next point. Orientation seems fine. Also it is at pump discharge, please check pump duty point /normal operating point , range should be covered within the pump operating range I think imo.

 

[Vishal Kumar]

I think it was commissioned earlier and any water trial/solvent trial taken then any feedback received? Or is this a sudden occurrence?

 

[Latexman]

Have you throttled the manual valve near the loading station, so backpressure will keep the methanol liquid in the meter while flowing?

Good Luck,
Latexman

 

[LittleInch]

MIANCH,

There's not much to go on here.

"Flow meter does not read flow"
Does it have power?
Does it say anything?
Any error codes?
Is it just a local read out?
Does it have density set right?
What make and model is it?
How are you controlling flow?
Meter looks very close to filter? and an elbow.
Even coriolis meters like a certain straight length upstream

Pump is 250, but max flow on the meter is 50?
250m3hr for tanker loading is far too fast.
Maybe the meter is out of range?

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[btrueblood]

You said on 7 Feb "not plugged in". Meaning no power is being supplied to the meter. Do you expect it to give readings without power?

 

[georgeverghese]

Local vendor has left you high and dry on this ? Anything to do with US sanctions on Libya ?

 

[MIANCH]

Flow meter design parameters.
Design flow:200, 500, 700 m3/hr
Design pressure: 16.6 barg
Operating range: 13,40,50 m3/hr
Operating pressure: 5 barg.
I think problem with meter settings, our guys set max flow 50 m3/hr.
This is for your information and comments if any.
Best regards

 

[pierreick]

hi,
Don't forget your flow meter should work as a totalizer! mass = sum( flow *time)
To me the flow should be managed at 50 m3/h max. I suppose there is a control valve to manage this flow.
note:Why did you install a filter upstream the flow meter, it should be a the suction of the pump?
very weird set up.
Pierre

 

[MIANCH]

no need to worry, this installed some 40 year ago and flowmeter just few months back, before, tanker was loading and dipstick was used to measure the quantity, now they want to measure with flow meter, just waste of money.