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What safeguards should be selected for the burner being built?

jammmo 2352 4
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16437457
    jammmo
    Level 15  
    Hello, I intend to adapt my coal-fired boiler to burn wood pallets. Due to the fact that the prices of burners reach quite considerable amounts, I have decided to make such a burner on my own and only buy the original controls for it. After browsing through a few topics, I already have a more or less outlined scheme of how to make it. The basic and nagging question for me is what safety devices and sensors should be in the burner. I know that original burners include, among others, photocells and temperature sensors. Please give me some advice as to the best type of sensor to use and where they should be fitted on the burner to ensure they perform their function best. If there is anyone who has already made such a burner for themselves and would like to share their observations and possibly give me some tips, please write in, greetings.
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  • #2 16437513
    janek1815
    Level 38  
    My suggestion is to go around to the shops and see for yourself. You will always be able to see something and even the seller will tell you something if he or she is knowledgeable, although such people are hard to come by.
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  • #3 16437676
    jammmo
    Level 15  
    In shops, at least at my place in Jasło, it is hard to find cookers for pallets (only to order) let alone the burners themselves. There are manufacturers of such burners in the vicinity of Rzeszów, but even going to the manufacturer to see it up close to touch it as you say, it will be rather difficult to expect him to want to show or help anything :) well, unless to sell, then yes. They are afraid of any competition , even the unitary ones. I have generally studied diagrams of such burners, from materials available on the Internet, and since I was involved in the manufacture of various machines, I can support my knowledge a little. I know more or less how such burners are made and on what principle they work, as well as how and what to do in general. I'm mainly concerned with minor safety issues, such as where to mount the photocell or, if you prefer, the flame detector. At what distance, for example, should it be mounted from the flame so as not to damage it. Where is the best place to put the temp. sensor in the inner auger chamber (to protect against temperature rise and backfire).
    Or, for example, whether it is advisable to mechanically clean the firebox or to just use air purging and manual cleaning from time to time, and so on. Every comment can be useful, kind regards.
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  • #4 16438833
    janek1815
    Level 38  
    Last winter I was looking for a boiler for a new house and I came across a shop where the man was very knowledgeable and even set up boilers in the shop to show me how they were built. He even praised the manufacturer of this fuel and, best of all, the wife of the owner who makes pellets is a good friend of mine from primary and secondary school. Unfortunately, pellets don't convince me, I once brought a tonne of them, poured them into an eco-pea boiler and just burnt them. The only plus was that there was no ash. I couldn't find any other positives, which is why I bought another eco-pea cooker.
  • #5 16439581
    jammmo
    Level 15  
    Janek1815 everything you write is certainly true to a large extent, but I'm not thinking of giving up ecopowder, because I realise that it is certainly a more calorific fuel and in the case of a harsh winter it is more cost-effective. The thing is that I have another boiler of the same size, 28 kW, as the current one in which I burn eco-pea. The first one started to leak slightly after 8 years of use . I messed up here myself because I kept the temperature on it too low (35-45*C) and that's why the cooker was sweating, which accelerated the process of steel oxidation and rusting. Now I want to renovate it and after the renovation , I would like to equip it with a typical pallets burner mounted in place of the feeder. This would be placed in the boiler room next to the eco-pea cooker and connected in such a way that at any time, when the valves on either cooker are closed, I can use either one or the other. For example, in spring or autumn, when it doesn't need to be heated very much, I could run on pellets and when the temperature outside drops significantly, switch to peas.
    Another thing is that, as far as I know, the use of pellets in an ordinary retort cooker for eco-pea is pointless and does not give good results, due to their very large and fast combustion and low efficiency. By fitting a suitable burner, you can certainly achieve more economical results. Unfortunately, typical pallet burners are quite expensive, so I would like to make one myself.
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