Drip Feed Method?

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Drip Feed Method?

Postby jls on Thu Oct 11, 2018 1:57 pm

Hi All,
Can someone enlighten me to what exactly the "Drip feed method" is when it comes to measuring the oil feed rate of a Rayburn 368K? I've searched the net and asked oil engineers and I can't find any reference to such a method other than in the Rayburn installation instructions
jls
 
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Re: Drip Feed Method?

Postby john on Sat Oct 13, 2018 5:55 pm

flow rating on a vaporising appliance is carried out by measuring the rate of flow from the oil into using a measuring cylinder usually over a period of 3 mins to give an accurate assesment of the fuel rate . On the cooker side it will literally be a drip feed with 4cc at low, and 13 cc at high will give a fairly rapid drip. The problem however is that when the appliance heats up the oil control , then the carefully set rates will change and you may have to adjust again for a decent flame picture.

Boiler side of a 368K is mega fiddly cos you have to have a 240 v supply connected directly to the solenoids so better to adjust based on flame picture
john
 
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Re: Drip Feed Method?

Postby jls on Thu Nov 01, 2018 8:59 pm

Thanks John, I thought that would probably be it but I was confused by mention of adapters. On a slightly different tack, how does the oil level in the burners tie in with flow rate? Is it simply a case of getting the fuel to the wicks in the cooker burner and not overflowing the pilot well in the boiler?
jls
 
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Joined: Tue Jan 28, 2014 9:01 pm

Re: Drip Feed Method?

Postby john on Sat Nov 03, 2018 10:28 am

Hi Jls
At initial set up the depth is set at the boiler burner using a dipstick and I seem to remember 16 mm as the figure . The oil control is raised / lowered to achieve this, with the solenoids hot wired .
The cooker burner level is then set by adjusting the three screws which it stands upon to give a set depth . The depth is chosen for adequate oil to the wicks without the fuel flowing/boiling over more or less as you thought.
john
 
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Re: Drip Feed Method?

Postby jls on Sun Nov 04, 2018 9:06 pm

Thanks John, I'll be having to set the boiler level again anyway when I try the replacement boiler but do you think that might be the source of the explosive ignition that I mentioned in another thread ?
jls
 
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