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燃氣發電機組工作循環流程

來源:http://dgxcbw.comD88尊龙   發布于:2019-03-05

(1)作業循環——由進氣、緊縮、作功和排氣四個作業進程組成的封閉循環,只要周而復始地進行這些進程,內燃機才能持續地作功。

D88尊龙(1) Operation cycle - a closed cycle consisting of four operation processes: intake, contraction, work and exhaust. Only if these processes are carried out again and again, can the internal combustion engine work continuously.

D88尊龙(2)上、下止點——活塞頂離曲軸回轉中心遠處,即活塞高方位,稱為上止點;活塞頂離曲軸回轉中心近處,即活塞低點,稱為下止點。在上、下止點處,活塞的運動速度為零。

(2) Upper and lower dead ends - the farthest distance between the piston top and the crankshaft revolving center, i.e. the highest orientation of the piston, is called upper dead ends; the nearest place between the piston top and the crankshaft revolving center, i.e. the lowest point of the piston, is called lower dead ends. At the top and bottom dead ends, the piston moves at zero speed.

(3)曲柄半徑——曲軸的回轉半徑R。

D88尊龙(3) Crank radius - crankshaft turning radius R.

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D88尊龙(4)活塞行程——上、下止點間的間隔S。S=2R。

(4) Piston stroke - the interval S between upper and lower dead ends. S=2R.

D88尊龙(5)氣缸作業容積——活塞從上止點到下止點所掃過的容積Vh

D88尊龙(5) Cylinder Operation Volume - Volume Vh Sweeped by Piston from Top-dead-point to Bottom-dead-point

(6)燃燒室容積——活塞位于上止點時活塞頂面以上與氣缸蓋底面以下之間構成的容積Vc。

(6) Combustor Volume - Volume Vc formed between the top of the piston and the bottom of the cylinder head when the piston is located at the top dead center.

(7)氣缸總容積——氣缸作業容積和燃燒室容積之和Va。 Va=Vc+Vh。

(7) Total Cylinder Volume - Va of the sum of Cylinder Operating Volume and Combustion Chamber Volume. Va = Vc + Vh.

D88尊龙(8)緊縮比——氣體緊縮前的容積與氣體緊縮后的容積之比值,即氣缸總容積與燃燒室容積之比ε。緊縮比是發動機中一個非常重要的概念,它表明了氣體的緊縮程度。

(8) Compression Ratio - The ratio of volume before gas compaction to volume after gas compaction, i.e. the ratio of total cylinder volume to combustion chamber volume. Compression ratio is a very important concept in engine, which indicates the degree of gas compaction.

D88尊龙(9)發動機排量——多缸發動機各氣缸作業容積的總和VL。VL=Vh×I;其間,   Vh—氣缸作業容積;    I—氣缸數目。

D88尊龙(9) Engine displacement - VL of the total operating volume of each cylinder of a multi-cylinder engine. VL = Vh * I; Vh - cylinder operating volume; I - cylinder number.

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