POST-COMBUSTION TURBOENGINE SYSTEM WITH PARTIAL PREMIXTURE IN CO-GENERATION

The invention relates to a post-combustion turboengine system with partial premixture in co-generation functioning with gas fuel. According to the invention, the system comprises an extension tube (A) of the turboengine, some walls (B) for flaring-limiting the combustion initiation, and a feeding-stabilizing body (C), the walls (B) for flaring-limiting the combustion initiation consisting of some flaring walls (1) having some grooves (a) for stiffening and turbulence, located before some cooling channels (b), and some refractory panels (2), the distance between the flaring walls (1) and the refractory panels (2) being provided by some spacers (3) having some cooling slots (c), the lateral space confining the subassembly of flaring-limiting walls (B) being limited by some lateral walls (4) the feeding-stabilizing body (C) separating the main flow of flue gases from the turboengine in two lateral channels (d) and a central slot (e), the gas fuel flowing through some holes (f) into a mixing chamber (g) limited by a non-aerodynamical flaring wall (6) and some directing flaps (9) where the gas fuel mixes with the flue gases from the turboengine and flows out as a poor mixture through some holes (h) cut in some directing flaps (9), another amount of the gas fuel flowing out through some holes (i) the partially pre-mixed gases which are circulated through the lateral channels (d) passing over a turbulence threshold (j). Invenţia se referă la un sistem de postcombustie turbomotor, cu preamestec parţial, în cogenerare, funcţionând pe combustibil gazos. Sistemul conform invenţiei este format dintr-un tub (A) prelungitor al turbomotorului, din nişte pereţi (B) de evazare-delimitare a iniţierii arderii şi dintr-un corp (C) de alimentare-stabilizare, pereţii (B) de evazare-delimitare a iniţierii arderii fiind formaţi din nişte pereţi de evazare (1), ce au practicate nişte şanţuri (a) de rigidizare şi turbulenţă, plasate înaintea unor canale de răcire (b), a unor ecrane parafoc (2), distanţa între pereţii de evazare (1) şi ecranele parafoc (2) fiind asigurată de nişte distanţiere (3) ce au practicate nişte fante de răcire (c), spaţiul lateral, ce închide subansamblul pereţilor de evazare-delimitare (B), fiind delimitat de nişte pereţi laterali (4), corpul (C) de alimentare-stabilizare despărţind fluxul principal de gaze de ardere de la turbomotor în două canale laterale (d) şi o fantă centrală (e), combustibilul gazos pătrunzând prin nişte orificii (f) într-o incintă de