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Automation and control

Used oil boiler flame sensor

milodon2016
hace 6 años
hace 6 años
Hello, I have a radiator heating system with an old (wood) boiler reformed with a diesel oil burner, a water thermostat, an ambient thermostat and a circulating pump. Everything is going great, only I get very expensive diesel. What I am doing is transforming it into used motor oil without modifying anything that is for diesel. In other words, if I want to use it with diesel fuel I can do it normally. (I clarify that the transformation to oil does not consist of putting oil in the oil tank) I am already heating with oil but everything is manual and what I am looking for is to automate the "oil version" I plan to install a solenoid valve commanded by the water thermostat to cut the oil flow. The operation is as follows: The thermostat opens the solenoid valve and ignites the diesel burner to start the combustion of oil, after a certain time (by means of a timer) the diesel burner goes out and follows the oil flame until the thermostat of water cut the oil and the flame goes out. I see that the problem may arise if for some reason the combustion of oil does not start before the diesel burner goes out, or the oil flame goes out before the thermostat is cut. In this case the solenoid valve would not close the oil passage, and flood the combustion chamber. The solution would be a flame sensor that acts on the solenoid valve. What dou you recommend? I read something about ionization rods to detect flame. Do you think it can work? Where can I get them? Will it be safe? The controllers and the photoresistors I see very complicated and expensive. I don't know if they would go in this case. I listen to all the suggestions. Thank you
robertohoracio
hace 6 años

hello, I ask, what you describe is in operation or is it a project

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robertohoracio
hace 6 años

Send a picture of what you've put together. I have worked low pressure boilers with two fuels, gas and diesel, but separately that is gas or diesel, I understand that you want to use diesel first and continue the flame with car oil, you could prove that both fuels begin the ignition and then it is oil only to heat the water you use to heat. and to have a safe system, flame control is recommended, which has flame sensor inputs and solenoid valve output and for ignition as well.

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milodon2016
hace 6 años

Hello, if it is working, I have already heated the house with oil but as I said, I still have to arm the automation, that is, install the solenoid valve and make the respective electrical connections. Everything is already planned how to do it but I am braking with the flame sensor. Soon I will put photos.

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Edurau
Edurau
835
hace 6 años

Burning diesel, very dirty method, you achieve a very good environmental pollution, no matter how well you have achieved combustion. With the change, you not only contaminate but also poison the surrounding atmosphere, because of the amount of additives that oils have plus the contaminants gained during use. on the other hand it gets dirty to the soul, with its manipulation, I don't see the gain you achieve with the change. luck

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milodon2016
hace 6 años

I respect your opinion about the pollutant. On this matter I have several concerns.
1- In this link http://solarlugo.com/product_info.php?products_id=319 you can see a used oil burner sold in Europe. What parameters will have been taken into account for approval?
2- What destination is given to used oils in Argentina?
3- Which destination would be the right one?
4- Are combustion gases more polluting than crude oil?
These are some concerns. Regarding the gain, if you live in CABA, it may be a reason for you not to see it. Regards

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servimat1
servimat1
138.835
hace 6 años
hace 6 años
Hi. What you must place is a sensor relay or flame detector. This will act with an ionization rod for diesel and will cut off the supply when the rod does not detect flame. You have to go directly to a boiler house to buy the right one. Regards
milodon2016
hace 6 años

Thank you very much, servimat1, I will find out what you are telling me.
Thank you. Regards

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robertohoracio
hace 6 años

Remember the problem that results from the change of fuel. When you go to look for boiler control.

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milodon2016
hace 6 años

Thank you Robertohoracio for your input. Regards

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