leliev
Seasoned Member
Posts: 114
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Post by leliev on May 11, 2013 19:51:58 GMT
Sorry guys ,i really don't know the right word ,but the bars where the fire lays upon. I am searching for the correct measurements. Friends of mine are on a steam weekend and next weekend we go to belgium with the simplex ,but that thingy where the fire rests upon has burnt through and i want to make a new one for next week. Any help here?
Many thanks in advance!
Grtz paul
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Post by Shawki Shlemon on May 12, 2013 9:39:29 GMT
Will this help ? Attachments:
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NickM
E-xcellent poster
Posts: 230
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Post by NickM on May 12, 2013 12:12:55 GMT
Hi Paul
The description you are looking for is ' the grate' ; a series for square or round bars with gaps between upon which the coal burns.
Regards
Nick
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leliev
Seasoned Member
Posts: 114
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Post by leliev on May 12, 2013 16:43:20 GMT
Thanks Nick.
And Shawki, with what program can i read the file?
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Post by Deleted on May 12, 2013 23:45:03 GMT
Hi Paul The description you are looking for is ' the grate' ; a series for square or round bars with gaps between upon which the coal burns. Regards Nick -----------------------------------Nick, if I may be a tad pedantic for a moment ?? --- The firebars that form the grate have a cross-section like that of an inverted capital V, such that lumps of clinker cannot get trapped between the bars and cause an obstruction...An end-view of an assembled grate looking something like this }--- V V V V V V V V V ...... If the gap between them at the top is the same as the bars' width, then that grate is said to have a 50% rating.. ie 50% of the grate area is passing air through it..The ideal figure would be 100% (physically impossible).. This figure is used when designing a balanced boiler and has an influence on the flue tubes etc...................LELIEV, You have a choice of}--a) Make one yourself, b) Buy a Cast Iron one or..c) Buy a Stainless Steel one........b) and c) are available commercially for most popular models (eg the Simplex).......... Personally I pay the extra and use c), the stainless steel type.. |
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Post by Shawki Shlemon on May 13, 2013 10:01:45 GMT
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leliev
Seasoned Member
Posts: 114
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Post by leliev on May 13, 2013 20:14:32 GMT
Hmm, i do get that message, but if i download it, windows asks me wich program to use.
And Mr Hagley, i think that is a very good option. Will search for where to buy those!
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Post by Shawki Shlemon on May 14, 2013 10:08:47 GMT
I am very sorry that you can't open the page , I just tried it again by clicking on the above link and then clicking on untitled in the bottom left corner and the page opened . My apology if it does not work , I just tried what I can .  |
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Post by cplmickey on May 14, 2013 22:40:12 GMT
I can't open it either Shawki on my Windows PC with Adobe. I suspect the file extension is changed somehow or is peculiar to the mac.
Ian
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Post by Deleted on May 14, 2013 22:44:51 GMT
Hello Chaps---------- no, I can't either..Just came up with this}-- error calling pre_downloadattachment -- Undefined subroutine &ProBoards::Include::db_quote called at /usr/local/PBV4.5/modules-new/downloadattachment.pl line 70. ----------- What's all that mean then ?? Not using Welsh Steam Coal, maybe ?? ;D ;D ;D
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ianb
Active Member
Kitchen workshopper
Posts: 14
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Post by ianb on May 14, 2013 23:15:16 GMT
Hi Paul The description you are looking for is ' the grate' ; a series for square or round bars with gaps between upon which the coal burns. Regards Nick -----------------------------------Nick, if I may be a tad pedantic for a moment ?? --- The firebars that form the grate have a cross-section like that of an inverted capital V, such that lumps of clinker cannot get trapped between the bars and cause an obstruction...An end-view of an assembled grate looking something like this }--- V V V V V V V V V ...... If the gap between them at the top is the same as the bars' width, then that grate is said to have a 50% rating.. ie 50% of the grate area is passing air through it..The ideal figure would be 100% (physically impossible).. This figure is used when designing a balanced boiler and has an influence on the flue tubes etc...................LELIEV, You have a choice of}--a) Make one yourself, b) Buy a Cast Iron one or..c) Buy a Stainless Steel one........b) and c) are available commercially for most popular models (eg the Simplex).......... Personally I pay the extra and use c), the stainless steel type.. Hi, I found this quite interesting. On previous attempts of first firing up I found my steam raising blower did not raise the fire unless I reduced the voltage until the fire was going well. I thought nothing of it and carried on. It was not until trying to haul more weight I found the fire more difficult to manage. I was using a stock design ashpan and cast grate, I have since removed most of the base of the ashpan and used a grate that had at least 30% more airflow meaning thinner bars. If I laid the new grate over the top of the original I was using you can see the amount of restriction due to the bars being thicker. The grate I am now using allows me to use the steam raising blowing instantly and the effect is a raging fire on steam up as well as much better steaming during hauling! I plan to try maybe a blackgates grate that is the shape mentioned which if you just look at the way it flows is more aerodynamic for airflow into the fire. But I may just file mine a bit which just consists of 1/8 by 3/8 steel on its edge. Another spoke in the works for the thread is what do you guys think about raking the fire? This thought is what got me using thinner grate bars. If you want to avoid clinker do you rake? I have found if you rake you can prolong your runing but you have to then virtually rebuild the fire over a short period of time. I guess it depends on what you are doing but if you have to try and run over a 3hr period?? I am still learning but experimenting, I have found the challenge of keeping the loco running almost as hard as turning on the lathe but a real good fire is the key and almost more important than anything as then plenty of pressure on the cylinders and plenty for the injector. I still finding it quite scary with a raging fire and 100psi in the boiler blowing off, sitting there waiting for the train in front to move off..But I can only do that now with using a good grate that possibly can be improved on.. All the best guys....Ian |
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Post by Shawki Shlemon on May 16, 2013 9:24:03 GMT
I am sorry , about that , I printed the items , scanned as photos and posted here . Attachments:
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Post by Shawki Shlemon on May 16, 2013 9:25:05 GMT
Second photo Attachments:
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