本發(fa)明涉及燃油(you)燃燒(shao)器領(ling)域(yu)，提(ti)供了一種燃燒(shao)試(shi)驗設(she)備(bei)。

背景技術：

在航空航天領(ling)域，存在這(zhe)樣兩種(zhong)(zhong)類型的(de)(de)零部件：一(yi)(yi)種(zhong)(zhong)是長(chang)期工作在高溫(wen)環(huan)境下(xia)，耐熱溫(wen)度及時(shi)長(chang)是檢驗其性(xing)(xing)能(neng)和安全性(xing)(xing)的(de)(de)主要(yao)指標，如(ru)航空燃氣(qi)輪(lun)機的(de)(de)燃燒室、渦輪(lun)等部件。另一(yi)(yi)種(zhong)(zhong)是在特(te)(te)定或特(te)(te)殊情況(kuang)下(xia)會承(cheng)受為(wei)時(shi)較短(duan)的(de)(de)高溫(wen)環(huan)境考驗，比(bi)如(ru)，一(yi)(yi)旦飛行器失事，要(yao)求黑匣子能(neng)在超過(guo)一(yi)(yi)千(qian)攝氏度的(de)(de)高溫(wen)中“存活”超過(guo)半小時(shi)；航天器返(fan)回大氣(qi)層時(shi)，外(wai)殼需要(yao)承(cheng)受由于與(yu)空氣(qi)高速摩擦產生的(de)(de)高溫(wen)等等。

由于以(yi)上兩種類(lei)型的(de)零(ling)部件在工作(zuo)過程中一定(ding)會(hui)或(huo)可能會(hui)接(jie)觸高(gao)溫(wen)環(huan)境，為保證其可靠性和安(an)全(quan)性，在設(she)計階段(duan)需要進(jin)行耐熱(re)性試驗，即在設(she)計溫(wen)度(du)和熱(re)流密(mi)度(du)條件下(xia)，對部件加(jia)熱(re)的(de)時間不短(duan)于設(she)計時長(chang)(chang)，然后考核其在高(gao)溫(wen)環(huan)境下(xia)的(de)強(qiang)度(du)、剛度(du)等，或(huo)者(zhe)測試其極限(xian)壽(shou)命(ming)、破壞時長(chang)(chang)。

目前國內外全自(zi)動燃油(you)燃燒器盡管品牌(pai)、規(gui)格繁多，但(dan)其(qi)結構(gou)原理及(ji)功(gong)能基本相同(tong)，主要用于鍋爐、窯爐等場合的(de)加熱(re)。燃燒器知名(ming)品牌(pai)有德國威索、英(ying)國力威等。經分析論證，現有的(de)傳統燃油(you)燃燒器不(bu)適用于大(da)中型(尺度在數(shu)十厘米～數(shu)米量級)熱(re)端部件的(de)耐熱(re)性(xing)試驗(yan)，主要原因有以下兩點：

(1)傳統燃油燃燒器產生的(de)通常(chang)為柱形火(huo)(huo)焰(yan)，火(huo)(huo)焰(yan)不同(tong)位置溫(wen)度不同(tong)，即(ji)使(shi)同(tong)一平面(mian)，內外層火(huo)(huo)焰(yan)溫(wen)度也(ye)存在較(jiao)大(da)差(cha)異(yi)，難以對大(da)型(xing)部件(jian)的(de)不同(tong)位置進行均(jun)勻加熱(re)。

(2)傳統燃(ran)油燃(ran)燒(shao)(shao)器(qi)的火焰(yan)直徑(jing)(燃(ran)燒(shao)(shao)頭口徑(jing))大(da)致與功率成正比。以德國威索燃(ran)燒(shao)(shao)器(qi)為(wei)例，其大(da)型(xing)燃(ran)燒(shao)(shao)器(qi)的燃(ran)燒(shao)(shao)頭口徑(jing)可以達到(dao)約一(yi)米，但其功率高達18mw，熱流密度過大(da)，能耗驚人。

技術實現要素：

(一)要解決的技術問題

本發明的目的是提供一(yi)種(zhong)火(huo)源面(mian)積(ji)較(jiao)大、且(qie)火(huo)焰不同位置溫(wen)度較(jiao)均勻且(qie)能耗相對較(jiao)低的燃(ran)燒(shao)試驗設備(bei)。

(二)技術方案

為實現上述(shu)(shu)目的(de)，本發明提供(gong)了一(yi)種燃燒試驗設(she)備，該設(she)備包括外(wai)筒(tong)(tong)以及設(she)置在所(suo)(suo)述(shu)(shu)外(wai)筒(tong)(tong)內(nei)、并(bing)與所(suo)(suo)述(shu)(shu)外(wai)筒(tong)(tong)限(xian)定形(xing)成(cheng)環形(xing)進(jin)(jin)氣(qi)(qi)(qi)腔的(de)內(nei)筒(tong)(tong)，所(suo)(suo)述(shu)(shu)環形(xing)進(jin)(jin)氣(qi)(qi)(qi)腔與所(suo)(suo)述(shu)(shu)內(nei)筒(tong)(tong)的(de)進(jin)(jin)氣(qi)(qi)(qi)端(duan)連通；所(suo)(suo)述(shu)(shu)內(nei)筒(tong)(tong)的(de)進(jin)(jin)氣(qi)(qi)(qi)端(duan)處(chu)插(cha)入有一(yi)級(ji)(ji)進(jin)(jin)氣(qi)(qi)(qi)管(guan)(guan)，所(suo)(suo)述(shu)(shu)一(yi)級(ji)(ji)進(jin)(jin)氣(qi)(qi)(qi)管(guan)(guan)內(nei)設(she)有一(yi)級(ji)(ji)噴油管(guan)(guan)；在所(suo)(suo)述(shu)(shu)內(nei)筒(tong)(tong)的(de)內(nei)部、并(bing)位于所(suo)(suo)述(shu)(shu)一(yi)級(ji)(ji)進(jin)(jin)氣(qi)(qi)(qi)管(guan)(guan)的(de)上方設(she)有二(er)級(ji)(ji)進(jin)(jin)油管(guan)(guan)；在所(suo)(suo)述(shu)(shu)環形(xing)進(jin)(jin)氣(qi)(qi)(qi)腔內(nei)、并(bing)靠(kao)近所(suo)(suo)述(shu)(shu)內(nei)筒(tong)(tong)的(de)排(pai)氣(qi)(qi)(qi)端(duan)處(chu)設(she)有二(er)級(ji)(ji)進(jin)(jin)氣(qi)(qi)(qi)管(guan)(guan)，所(suo)(suo)述(shu)(shu)二(er)級(ji)(ji)進(jin)(jin)氣(qi)(qi)(qi)管(guan)(guan)沿所(suo)(suo)述(shu)(shu)內(nei)筒(tong)(tong)的(de)外(wai)壁周向延伸，所(suo)(suo)述(shu)(shu)二(er)級(ji)(ji)進(jin)(jin)氣(qi)(qi)(qi)管(guan)(guan)上設(she)有多個排(pai)氣(qi)(qi)(qi)孔。

優選(xuan)的，所述(shu)內筒的內徑由進氣(qi)端至排(pai)氣(qi)端逐漸增大。

優選的，所述排(pai)氣(qi)孔朝向所述內(nei)筒設置。

優選的，在氣體流動的方向上(shang)，插入到所(suo)(suo)述(shu)內筒(tong)的進氣端的部分(fen)所(suo)(suo)述(shu)第一進氣管的內徑逐(zhu)漸增大(da)。

優(you)選的，所述(shu)外筒(tong)(tong)的進(jin)(jin)氣端通過第(di)一(yi)環形(xing)擋板與所述(shu)一(yi)級進(jin)(jin)氣管的外壁(bi)連接，所述(shu)第(di)一(yi)環形(xing)擋板與所述(shu)內筒(tong)(tong)的進(jin)(jin)氣端之間具有間隙。

優選的(de)(de)，所(suo)述內筒的(de)(de)排氣端通(tong)過第二環(huan)形擋板與所(suo)述外筒連接。

優選的(de)，所(suo)(suo)述(shu)內(nei)筒(tong)的(de)中部通過第三(san)環(huan)(huan)(huan)形擋板與所(suo)(suo)述(shu)外筒(tong)連接，在所(suo)(suo)述(shu)第三(san)環(huan)(huan)(huan)形擋板上、并靠近所(suo)(suo)述(shu)內(nei)筒(tong)的(de)外壁處(chu)開設有多(duo)個通氣孔，多(duo)個通氣孔沿所(suo)(suo)述(shu)第三(san)環(huan)(huan)(huan)形擋板的(de)周向排布。

優選的，所述(shu)二級進油管靠近所述(shu)內(nei)筒(tong)的內(nei)壁設置。

優選的(de)，所(suo)述二(er)級噴油(you)管為整體呈螺旋(xuan)形的(de)結構，所(suo)述二(er)級噴油(you)管上設有多個燃油(you)霧化孔(kong)。

優選的，所述二級(ji)噴油(you)管上的燃油(you)霧化孔朝向所述內(nei)筒的進氣端(duan)。

(三)有益效果

本(ben)發明提供的(de)(de)一(yi)種燃(ran)燒(shao)(shao)試(shi)驗(yan)設(she)備，包括外筒(tong)(tong)(tong)(tong)以及設(she)置在(zai)外筒(tong)(tong)(tong)(tong)內(nei)(nei)、并與(yu)外筒(tong)(tong)(tong)(tong)限定(ding)形(xing)(xing)成(cheng)環(huan)形(xing)(xing)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)腔的(de)(de)內(nei)(nei)筒(tong)(tong)(tong)(tong)，通過設(she)置在(zai)內(nei)(nei)筒(tong)(tong)(tong)(tong)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)端(duan)的(de)(de)一(yi)級(ji)(ji)噴油(you)(you)管(guan)和(he)一(yi)級(ji)(ji)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)管(guan)，形(xing)(xing)成(cheng)主要分(fen)布(bu)于內(nei)(nei)筒(tong)(tong)(tong)(tong)中央的(de)(de)火焰(yan)；環(huan)形(xing)(xing)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)腔與(yu)內(nei)(nei)筒(tong)(tong)(tong)(tong)的(de)(de)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)端(duan)連(lian)通，以此使(shi)環(huan)形(xing)(xing)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)腔中的(de)(de)二級(ji)(ji)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)管(guan)噴出(chu)的(de)(de)氣(qi)(qi)(qi)(qi)體沿著內(nei)(nei)筒(tong)(tong)(tong)(tong)的(de)(de)外壁(bi)向下流(liu)動而(er)進(jin)(jin)(jin)入到內(nei)(nei)筒(tong)(tong)(tong)(tong)中，另(ling)外再(zai)(zai)通過一(yi)級(ji)(ji)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)管(guan)與(yu)內(nei)(nei)筒(tong)(tong)(tong)(tong)的(de)(de)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)端(duan)之間形(xing)(xing)成(cheng)的(de)(de)環(huan)形(xing)(xing)通道的(de)(de)導流(liu)作用(yong)，使(shi)上述氣(qi)(qi)(qi)(qi)流(liu)再(zai)(zai)沿著內(nei)(nei)筒(tong)(tong)(tong)(tong)的(de)(de)內(nei)(nei)壁(bi)向上流(liu)動，最(zui)終與(yu)二級(ji)(ji)噴油(you)(you)管(guan)噴出(chu)的(de)(de)燃(ran)料(liao)混合(he)燃(ran)燒(shao)(shao)，這(zhe)樣(yang)不僅能(neng)(neng)夠(gou)在(zai)內(nei)(nei)筒(tong)(tong)(tong)(tong)的(de)(de)邊(bian)緣區域也形(xing)(xing)成(cheng)火焰(yan)，而(er)且氣(qi)(qi)(qi)(qi)流(liu)在(zai)沿著內(nei)(nei)筒(tong)(tong)(tong)(tong)的(de)(de)外壁(bi)和(he)內(nei)(nei)壁(bi)流(liu)動的(de)(de)過程(cheng)中，會被內(nei)(nei)筒(tong)(tong)(tong)(tong)加熱升溫，因此還能(neng)(neng)保持二級(ji)(ji)噴油(you)(you)管(guan)噴出(chu)的(de)(de)燃(ran)料(liao)能(neng)(neng)夠(gou)充分(fen)燃(ran)燒(shao)(shao)，以此在(zai)外筒(tong)(tong)(tong)(tong)的(de)(de)排氣(qi)(qi)(qi)(qi)端(duan)處(chu)形(xing)(xing)成(cheng)均勻(yun)分(fen)布(bu)的(de)(de)火焰(yan)，從(cong)而(er)對被試(shi)驗(yan)材(cai)料(liao)形(xing)(xing)成(cheng)均勻(yun)的(de)(de)加熱。

附圖說明

圖1是本(ben)發明實施(shi)例的一種燃(ran)燒試驗設(she)備的外(wai)部視圖。

圖2是本發明實(shi)施例的(de)一(yi)種(zhong)燃燒試(shi)驗設備的(de)剖視圖一(yi)。

圖(tu)3是本(ben)發明實施例的一種燃(ran)燒(shao)試驗設備的剖(pou)視圖(tu)二。

附圖標記：

1、外(wai)筒；11、第(di)一(yi)環(huan)形擋(dang)板(ban)；12、第(di)二(er)環(huan)形擋(dang)板(ban)；13、第(di)三環(huan)形擋(dang)板(ban)；14、支架結構；2、內筒；3、一(yi)級(ji)進氣管(guan)(guan)；4、一(yi)級(ji)噴油管(guan)(guan)；5、二(er)級(ji)進氣管(guan)(guan)；6、二(er)級(ji)噴油管(guan)(guan)。

具體實施方式

下(xia)面結合附(fu)圖和實(shi)施(shi)例，對本發(fa)明的具體(ti)實(shi)施(shi)方(fang)式作進一(yi)步詳細描(miao)述。以下(xia)實(shi)施(shi)例用于說明本發(fa)明，但不(bu)用來限制本發(fa)明的范圍。

在本(ben)發明(ming)的(de)(de)描(miao)述中，需要說明(ming)的(de)(de)是，除非另有明(ming)確的(de)(de)規定和限定，術語“連(lian)(lian)(lian)接”應做廣義理解，例如，可(ke)以(yi)(yi)是固定連(lian)(lian)(lian)接，也(ye)可(ke)以(yi)(yi)是可(ke)拆卸連(lian)(lian)(lian)接，或(huo)一體(ti)地(di)連(lian)(lian)(lian)接；可(ke)以(yi)(yi)是直接相連(lian)(lian)(lian)，也(ye)可(ke)以(yi)(yi)通過中間(jian)媒介(jie)間(jian)接相連(lian)(lian)(lian)。對于本(ben)領域的(de)(de)普通技術人員而言，可(ke)以(yi)(yi)具(ju)體(ti)情況理解上述術語在本(ben)發明(ming)中的(de)(de)具(ju)體(ti)含義。

結合圖(tu)1至圖(tu)3所(suo)示(shi)，本發明實施例提供的一種燃(ran)燒試驗設備，包(bao)括(kuo)外筒1、內筒2、一級(ji)進氣(qi)管3、二級(ji)進氣(qi)管5、一級(ji)進油(you)管以及二級(ji)進油(you)管。

外(wai)(wai)(wai)筒(tong)(tong)1可(ke)以(yi)為圓筒(tong)(tong)狀結構(gou)，可(ke)通過支架結構(gou)14豎直站立設置，下(xia)端(duan)(duan)(duan)(duan)為進(jin)(jin)氣(qi)(qi)端(duan)(duan)(duan)(duan)，上(shang)端(duan)(duan)(duan)(duan)為排(pai)氣(qi)(qi)端(duan)(duan)(duan)(duan)。內(nei)(nei)(nei)筒(tong)(tong)2設置在外(wai)(wai)(wai)筒(tong)(tong)1的內(nei)(nei)(nei)部，可(ke)以(yi)與(yu)外(wai)(wai)(wai)筒(tong)(tong)1同軸心設置，內(nei)(nei)(nei)筒(tong)(tong)2與(yu)外(wai)(wai)(wai)筒(tong)(tong)1之間限定形(xing)成的空間構(gou)成為環形(xing)進(jin)(jin)氣(qi)(qi)腔(qiang)，環形(xing)進(jin)(jin)氣(qi)(qi)腔(qiang)與(yu)內(nei)(nei)(nei)筒(tong)(tong)2的進(jin)(jin)氣(qi)(qi)端(duan)(duan)(duan)(duan)連(lian)通，即環形(xing)進(jin)(jin)氣(qi)(qi)腔(qiang)中的氣(qi)(qi)體(ti)可(ke)由內(nei)(nei)(nei)筒(tong)(tong)2的進(jin)(jin)氣(qi)(qi)端(duan)(duan)(duan)(duan)進(jin)(jin)入到(dao)內(nei)(nei)(nei)筒(tong)(tong)2中。

二(er)(er)級(ji)(ji)(ji)(ji)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)5設(she)(she)置(zhi)在(zai)環形(xing)(xing)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)(qi)腔(qiang)內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)、并靠(kao)近內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)(tong)2的(de)(de)(de)排(pai)氣(qi)(qi)(qi)(qi)(qi)端(duan)處(chu)(chu)(chu)，二(er)(er)級(ji)(ji)(ji)(ji)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)5沿(yan)內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)(tong)2的(de)(de)(de)外壁(bi)周向延(yan)伸，二(er)(er)級(ji)(ji)(ji)(ji)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)5上(shang)設(she)(she)有多個排(pai)氣(qi)(qi)(qi)(qi)(qi)孔，用(yong)于(yu)(yu)向環形(xing)(xing)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)(qi)腔(qiang)內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)注入(ru)氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)；一(yi)級(ji)(ji)(ji)(ji)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)3的(de)(de)(de)排(pai)氣(qi)(qi)(qi)(qi)(qi)端(duan)插設(she)(she)于(yu)(yu)內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)(tong)2的(de)(de)(de)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)(qi)端(duan)，插入(ru)到內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)(tong)2的(de)(de)(de)部(bu)分(fen)(fen)一(yi)級(ji)(ji)(ji)(ji)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)3可(ke)(ke)以(yi)是與(yu)(yu)(yu)內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)(tong)2同軸心設(she)(she)置(zhi)；一(yi)級(ji)(ji)(ji)(ji)噴(pen)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)(guan)4設(she)(she)置(zhi)在(zai)一(yi)級(ji)(ji)(ji)(ji)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)3內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)，一(yi)級(ji)(ji)(ji)(ji)噴(pen)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)(guan)4的(de)(de)(de)燃(ran)油(you)(you)(you)(you)(you)(you)(you)霧(wu)(wu)(wu)化孔大致處(chu)(chu)(chu)在(zai)內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)(tong)2的(de)(de)(de)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)(qi)端(duan)處(chu)(chu)(chu)，該一(yi)級(ji)(ji)(ji)(ji)噴(pen)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)(guan)4的(de)(de)(de)燃(ran)油(you)(you)(you)(you)(you)(you)(you)霧(wu)(wu)(wu)化孔通常還具有點(dian)火器，用(yong)于(yu)(yu)使(shi)一(yi)級(ji)(ji)(ji)(ji)噴(pen)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)(guan)4內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)噴(pen)出的(de)(de)(de)燃(ran)料(liao)(liao)與(yu)(yu)(yu)一(yi)級(ji)(ji)(ji)(ji)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)3排(pai)出的(de)(de)(de)氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)在(zai)內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)(tong)2中發(fa)(fa)生(sheng)燃(ran)燒(shao)反應；二(er)(er)級(ji)(ji)(ji)(ji)進(jin)(jin)(jin)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)(guan)設(she)(she)置(zhi)在(zai)內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)(tong)2的(de)(de)(de)內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)部(bu)、并位(wei)于(yu)(yu)一(yi)級(ji)(ji)(ji)(ji)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)3的(de)(de)(de)上(shang)方，二(er)(er)級(ji)(ji)(ji)(ji)噴(pen)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)(guan)6優(you)選(xuan)為(wei)整(zheng)體(ti)(ti)呈螺(luo)旋形(xing)(xing)的(de)(de)(de)結構，且(qie)二(er)(er)級(ji)(ji)(ji)(ji)噴(pen)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)(guan)6上(shang)設(she)(she)有多個燃(ran)油(you)(you)(you)(you)(you)(you)(you)霧(wu)(wu)(wu)化孔，以(yi)使(shi)燃(ran)料(liao)(liao)充分(fen)(fen)與(yu)(yu)(yu)氣(qi)(qi)(qi)(qi)(qi)流混(hun)合(he)，而且(qie)，二(er)(er)級(ji)(ji)(ji)(ji)進(jin)(jin)(jin)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)(guan)6靠(kao)近優(you)選(xuan)為(wei)靠(kao)近內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)(tong)2的(de)(de)(de)內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)壁(bi)設(she)(she)置(zhi)，這(zhe)樣二(er)(er)級(ji)(ji)(ji)(ji)噴(pen)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)(guan)6噴(pen)出的(de)(de)(de)燃(ran)料(liao)(liao)氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)所處(chu)(chu)(chu)的(de)(de)(de)區(qu)域更能(neng)夠與(yu)(yu)(yu)沿(yan)著內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)(tong)2的(de)(de)(de)內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)壁(bi)向上(shang)流動的(de)(de)(de)氣(qi)(qi)(qi)(qi)(qi)流的(de)(de)(de)位(wei)置(zhi)相對應，在(zai)內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)(tong)的(de)(de)(de)內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)壁(bi)附(fu)近燃(ran)燒(shao)；當然，二(er)(er)級(ji)(ji)(ji)(ji)噴(pen)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)(guan)6也(ye)可(ke)(ke)以(yi)是分(fen)(fen)布于(yu)(yu)內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)(tong)2的(de)(de)(de)整(zheng)個橫(heng)截面上(shang)，而僅在(zai)靠(kao)近內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)(tong)的(de)(de)(de)內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)部(bu)處(chu)(chu)(chu)開設(she)(she)多個燃(ran)油(you)(you)(you)(you)(you)(you)(you)霧(wu)(wu)(wu)化孔，這(zhe)樣也(ye)可(ke)(ke)以(yi)主(zhu)要將燃(ran)料(liao)(liao)噴(pen)射在(zai)內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)(tong)的(de)(de)(de)內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)壁(bi)附(fu)近，而位(wei)于(yu)(yu)內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)(tong)中央區(qu)域的(de)(de)(de)部(bu)分(fen)(fen)二(er)(er)級(ji)(ji)(ji)(ji)噴(pen)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)(guan)6則用(yong)于(yu)(yu)使(shi)受熱，更有利于(yu)(yu)其內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)部(bu)燃(ran)料(liao)(liao)的(de)(de)(de)蒸發(fa)(fa)、霧(wu)(wu)(wu)化；二(er)(er)級(ji)(ji)(ji)(ji)噴(pen)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)(guan)6上(shang)的(de)(de)(de)燃(ran)油(you)(you)(you)(you)(you)(you)(you)霧(wu)(wu)(wu)化孔朝向內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)(tong)2的(de)(de)(de)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)(qi)端(duan)，這(zhe)樣可(ke)(ke)以(yi)與(yu)(yu)(yu)一(yi)級(ji)(ji)(ji)(ji)噴(pen)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)(guan)4形(xing)(xing)成的(de)(de)(de)火焰(yan)氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)和來自二(er)(er)級(ji)(ji)(ji)(ji)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)5的(de)(de)(de)氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)形(xing)(xing)成對流，以(yi)提升混(hun)合(he)效果，二(er)(er)級(ji)(ji)(ji)(ji)噴(pen)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)(guan)6噴(pen)出的(de)(de)(de)燃(ran)料(liao)(liao)被一(yi)級(ji)(ji)(ji)(ji)噴(pen)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)(guan)4噴(pen)出的(de)(de)(de)火焰(yan)點(dian)燃(ran)，并主(zhu)要與(yu)(yu)(yu)來自環形(xing)(xing)進(jin)(jin)(jin)氣(qi)(qi)(qi)(qi)(qi)腔(qiang)內(nei)(nei)(nei)(nei)(nei)(nei)(nei)(nei)的(de)(de)(de)氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)發(fa)(fa)生(sheng)燃(ran)燒(shao)反應。

在進行燃(ran)(ran)燒試(shi)驗時，一(yi)(yi)方面，一(yi)(yi)級(ji)進油(you)管(guan)噴(pen)(pen)(pen)出的燃(ran)(ran)料(liao)與其周圍由一(yi)(yi)級(ji)進氣管(guan)3噴(pen)(pen)(pen)出來的氣體發(fa)生(sheng)燃(ran)(ran)燒反應，在內筒(tong)2內形(xing)成燃(ran)(ran)燒火(huo)(huo)焰(yan)(yan)(yan)，但畢竟由一(yi)(yi)級(ji)噴(pen)(pen)(pen)油(you)管(guan)4噴(pen)(pen)(pen)出的燃(ran)(ran)料(liao)多(duo)集(ji)中(zhong)(zhong)在內筒(tong)2的中(zhong)(zhong)央，所以(yi)一(yi)(yi)級(ji)噴(pen)(pen)(pen)油(you)管(guan)4所形(xing)成的火(huo)(huo)焰(yan)(yan)(yan)也(ye)主要集(ji)中(zhong)(zhong)在內筒(tong)2的中(zhong)(zhong)央，該(gai)一(yi)(yi)級(ji)噴(pen)(pen)(pen)油(you)管(guan)4所形(xing)成的火(huo)(huo)焰(yan)(yan)(yan)還可以(yi)經過(guo)旋(xuan)流，減速網等結(jie)構，使火(huo)(huo)焰(yan)(yan)(yan)集(ji)中(zhong)(zhong)問題得以(yi)改善，擴大火(huo)(huo)焰(yan)(yan)(yan)范圍。

另一(yi)(yi)方面，二(er)(er)級(ji)進(jin)(jin)氣(qi)管5噴出(chu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)氣(qi)體在(zai)(zai)進(jin)(jin)入環(huan)形(xing)(xing)進(jin)(jin)氣(qi)腔(qiang)后(hou)，使環(huan)形(xing)(xing)進(jin)(jin)氣(qi)腔(qiang)內(nei)(nei)(nei)(nei)的(de)(de)(de)(de)(de)(de)(de)(de)(de)氣(qi)壓升高(gao)，而(er)(er)由于環(huan)形(xing)(xing)進(jin)(jin)氣(qi)腔(qiang)還(huan)通(tong)(tong)過內(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)2的(de)(de)(de)(de)(de)(de)(de)(de)(de)進(jin)(jin)氣(qi)端與內(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)2的(de)(de)(de)(de)(de)(de)(de)(de)(de)內(nei)(nei)(nei)(nei)部(bu)空間(jian)(jian)連通(tong)(tong)，所(suo)(suo)以環(huan)形(xing)(xing)進(jin)(jin)氣(qi)腔(qiang)中(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)高(gao)壓氣(qi)體只得(de)由內(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)2的(de)(de)(de)(de)(de)(de)(de)(de)(de)進(jin)(jin)氣(qi)端進(jin)(jin)入到內(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)2中(zhong)(zhong)(zhong)，進(jin)(jin)入到內(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)2中(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)氣(qi)體沿著內(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)2與一(yi)(yi)級(ji)進(jin)(jin)氣(qi)管3之(zhi)間(jian)(jian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)環(huan)形(xing)(xing)通(tong)(tong)道向上流(liu)動(dong)，流(liu)動(dong)到內(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)2的(de)(de)(de)(de)(de)(de)(de)(de)(de)上部(bu)空間(jian)(jian)中(zhong)(zhong)(zhong)后(hou)不(bu)僅(jin)可以對來自一(yi)(yi)級(ji)噴油(you)管4未(wei)完全燃(ran)燒的(de)(de)(de)(de)(de)(de)(de)(de)(de)燃(ran)料形(xing)(xing)成(cheng)(cheng)(cheng)(cheng)補燃(ran)，還(huan)主(zhu)要是(shi)為(wei)了(le)(le)與二(er)(er)級(ji)噴油(you)管6噴出(chu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)燃(ran)料混合、并被(bei)一(yi)(yi)級(ji)噴油(you)管4所(suo)(suo)形(xing)(xing)成(cheng)(cheng)(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)火(huo)焰點燃(ran)，而(er)(er)在(zai)(zai)此(ci)(ci)過程(cheng)中(zhong)(zhong)(zhong)，由于插入到內(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)2中(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)部(bu)分(fen)一(yi)(yi)級(ji)進(jin)(jin)氣(qi)管3與內(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)2之(zhi)間(jian)(jian)所(suo)(suo)形(xing)(xing)成(cheng)(cheng)(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)環(huan)形(xing)(xing)通(tong)(tong)道的(de)(de)(de)(de)(de)(de)(de)(de)(de)導流(liu)作用(yong)，上述來自環(huan)形(xing)(xing)進(jin)(jin)氣(qi)腔(qiang)中(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)氣(qi)體主(zhu)要是(shi)沿著內(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)2的(de)(de)(de)(de)(de)(de)(de)(de)(de)內(nei)(nei)(nei)(nei)壁向上流(liu)動(dong)，最(zui)終在(zai)(zai)內(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)2上部(bu)空間(jian)(jian)靠近筒(tong)(tong)(tong)(tong)(tong)內(nei)(nei)(nei)(nei)壁的(de)(de)(de)(de)(de)(de)(de)(de)(de)區域處與二(er)(er)級(ji)噴油(you)管6噴出(chu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)燃(ran)料形(xing)(xing)成(cheng)(cheng)(cheng)(cheng)燃(ran)燒，由此(ci)(ci)填補了(le)(le)內(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)2中(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)邊(bian)緣(yuan)區域處火(huo)焰分(fen)別較弱的(de)(de)(de)(de)(de)(de)(de)(de)(de)缺(que)陷，與一(yi)(yi)級(ji)噴油(you)管4所(suo)(suo)形(xing)(xing)成(cheng)(cheng)(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)火(huo)焰相(xiang)配合，使內(nei)(nei)(nei)(nei)筒(tong)(tong)(tong)(tong)(tong)2中(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)火(huo)焰分(fen)布均勻(yun)，保證了(le)(le)不(bu)同位置處的(de)(de)(de)(de)(de)(de)(de)(de)(de)加熱溫度更(geng)為(wei)均勻(yun)，從而(er)(er)可以對外筒(tong)(tong)(tong)(tong)(tong)1排氣(qi)端處的(de)(de)(de)(de)(de)(de)(de)(de)(de)試驗不(bu)僅(jin)形(xing)(xing)成(cheng)(cheng)(cheng)(cheng)均勻(yun)的(de)(de)(de)(de)(de)(de)(de)(de)(de)加熱，以得(de)到準(zhun)確(que)的(de)(de)(de)(de)(de)(de)(de)(de)(de)耐(nai)熱性試驗數據。

另(ling)外(wai)(wai)，由于(yu)二(er)(er)(er)級(ji)進氣(qi)(qi)管(guan)(guan)5噴(pen)出的(de)(de)氣(qi)(qi)體(ti)溫(wen)度較(jiao)低，倘若此低溫(wen)的(de)(de)氣(qi)(qi)體(ti)直接排入到內筒(tong)(tong)2的(de)(de)上部空間(jian)中、與(yu)二(er)(er)(er)級(ji)噴(pen)油(you)(you)管(guan)(guan)6噴(pen)出的(de)(de)燃(ran)料混(hun)(hun)合燃(ran)燒，會極大(da)抑制(zhi)二(er)(er)(er)級(ji)噴(pen)油(you)(you)管(guan)(guan)6噴(pen)出的(de)(de)初(chu)始(shi)燃(ran)燒率，而且，由于(yu)二(er)(er)(er)級(ji)噴(pen)油(you)(you)管(guan)(guan)6距離(li)外(wai)(wai)筒(tong)(tong)1的(de)(de)排氣(qi)(qi)端距離(li)較(jiao)近，即(ji)二(er)(er)(er)級(ji)噴(pen)油(you)(you)管(guan)(guan)6噴(pen)出的(de)(de)燃(ran)料與(yu)二(er)(er)(er)級(ji)進氣(qi)(qi)管(guan)(guan)5噴(pen)出的(de)(de)氣(qi)(qi)體(ti)混(hun)(hun)合后燃(ran)燒的(de)(de)距離(li)較(jiao)短，在(zai)此雙(shuang)重因(yin)素的(de)(de)影響下，會使二(er)(er)(er)級(ji)噴(pen)油(you)(you)管(guan)(guan)6噴(pen)出的(de)(de)燃(ran)料的(de)(de)燃(ran)燒極不(bu)充分(fen)，因(yin)此幾乎(hu)不(bu)能達到在(zai)外(wai)(wai)筒(tong)(tong)1的(de)(de)開口(kou)處形成均勻加熱面的(de)(de)效果。

為此，本發明(ming)將二(er)級(ji)(ji)(ji)進(jin)(jin)氣(qi)(qi)(qi)管5靠近(jin)內(nei)(nei)筒(tong)(tong)2的(de)(de)排氣(qi)(qi)(qi)端設(she)置，而(er)(er)環形進(jin)(jin)氣(qi)(qi)(qi)腔中(zhong)(zhong)的(de)(de)氣(qi)(qi)(qi)體(ti)(ti)最(zui)終(zhong)又(you)是繞過內(nei)(nei)筒(tong)(tong)2的(de)(de)進(jin)(jin)氣(qi)(qi)(qi)端而(er)(er)進(jin)(jin)入到(dao)內(nei)(nei)筒(tong)(tong)2中(zhong)(zhong)，因此，二(er)級(ji)(ji)(ji)進(jin)(jin)氣(qi)(qi)(qi)管5噴(pen)(pen)(pen)出的(de)(de)氣(qi)(qi)(qi)體(ti)(ti)大(da)體(ti)(ti)上(shang)(shang)是貼著內(nei)(nei)筒(tong)(tong)2的(de)(de)外壁(bi)向下流(liu)動的(de)(de)，而(er)(er)氣(qi)(qi)(qi)體(ti)(ti)在(zai)貼著內(nei)(nei)筒(tong)(tong)2的(de)(de)外壁(bi)向下流(liu)動的(de)(de)過程(cheng)中(zhong)(zhong)，會(hui)在(zai)一(yi)定程(cheng)度(du)上(shang)(shang)被(bei)內(nei)(nei)筒(tong)(tong)2的(de)(de)外壁(bi)加(jia)熱，而(er)(er)氣(qi)(qi)(qi)流(liu)在(zai)進(jin)(jin)入到(dao)內(nei)(nei)筒(tong)(tong)2中(zhong)(zhong)后，由于受(shou)到(dao)內(nei)(nei)筒(tong)(tong)2與(yu)一(yi)級(ji)(ji)(ji)進(jin)(jin)氣(qi)(qi)(qi)管3之間環形通道的(de)(de)導流(liu)作用，氣(qi)(qi)(qi)體(ti)(ti)會(hui)繼(ji)續大(da)體(ti)(ti)上(shang)(shang)貼著內(nei)(nei)筒(tong)(tong)2的(de)(de)內(nei)(nei)壁(bi)向上(shang)(shang)流(liu)動，這(zhe)樣(yang)不僅可(ke)以(yi)在(zai)內(nei)(nei)筒(tong)(tong)2上(shang)(shang)部空(kong)間的(de)(de)邊(bian)緣區域形成過量空(kong)氣(qi)(qi)(qi)、以(yi)與(yu)二(er)級(ji)(ji)(ji)噴(pen)(pen)(pen)油管6噴(pen)(pen)(pen)出的(de)(de)燃(ran)料(liao)(liao)形成燃(ran)燒(shao)，還可(ke)以(yi)被(bei)內(nei)(nei)筒(tong)(tong)2的(de)(de)內(nei)(nei)壁(bi)進(jin)(jin)一(yi)步(bu)加(jia)熱，這(zhe)樣(yang)待(dai)氣(qi)(qi)(qi)流(liu)上(shang)(shang)升(sheng)至與(yu)二(er)級(ji)(ji)(ji)噴(pen)(pen)(pen)油管6噴(pen)(pen)(pen)出的(de)(de)燃(ran)料(liao)(liao)結合(he)時，已經達到(dao)很(hen)高(gao)的(de)(de)溫(wen)(wen)度(du)，且二(er)級(ji)(ji)(ji)噴(pen)(pen)(pen)油管6中(zhong)(zhong)的(de)(de)燃(ran)料(liao)(liao)在(zai)噴(pen)(pen)(pen)出前也會(hui)受(shou)到(dao)火焰的(de)(de)烘(hong)烤而(er)(er)升(sheng)溫(wen)(wen)，這(zhe)樣(yang)較高(gao)溫(wen)(wen)度(du)的(de)(de)燃(ran)料(liao)(liao)在(zai)與(yu)較高(gao)溫(wen)(wen)度(du)的(de)(de)氣(qi)(qi)(qi)體(ti)(ti)混合(he)后，即(ji)便燃(ran)燒(shao)距離較短，仍(reng)能夠保(bao)證充分燃(ran)燒(shao)，最(zui)終(zhong)達到(dao)與(yu)內(nei)(nei)筒(tong)(tong)中(zhong)(zhong)央區域的(de)(de)火焰同等(deng)的(de)(de)溫(wen)(wen)度(du)。

另外，二級進氣(qi)管5噴出的(de)(de)氣(qi)體在(zai)流經內(nei)(nei)筒(tong)2的(de)(de)內(nei)(nei)壁(bi)與外壁(bi)的(de)(de)過程中，也會對內(nei)(nei)筒(tong)2形成一定的(de)(de)冷卻(que)效果，由此，本(ben)設備不會因內(nei)(nei)筒(tong)2的(de)(de)耐熱極限而限制對試驗材料的(de)(de)加熱溫度，且有益于延長內(nei)(nei)筒(tong)2的(de)(de)使(shi)用壽命。

其中，內(nei)筒2的(de)(de)內(nei)徑優選由進氣(qi)端(duan)至排(pai)氣(qi)端(duan)逐(zhu)漸增大(da)(da)，即(ji)內(nei)筒2大(da)(da)體(ti)上是(shi)一(yi)個截頭錐形結構，一(yi)級(ji)噴(pen)(pen)油管4噴(pen)(pen)出的(de)(de)燃料(liao)(liao)一(yi)般(ban)呈(cheng)放射狀(zhuang)，噴(pen)(pen)出的(de)(de)燃料(liao)(liao)在于周圍來(lai)自一(yi)級(ji)進氣(qi)管3的(de)(de)氣(qi)體(ti)燃燒的(de)(de)過程中，混合(he)氣(qi)體(ti)的(de)(de)體(ti)積膨脹，最終在外(wai)筒1的(de)(de)排(pai)氣(qi)端(duan)處(chu)達到較大(da)(da)的(de)(de)加(jia)熱面積，以滿足對大(da)(da)型材料(liao)(liao)的(de)(de)耐熱性試驗要求。

進一步的(de)(de)，二級進氣管(guan)(guan)5上(shang)(shang)(shang)的(de)(de)排(pai)氣孔(kong)優選為朝(chao)向(xiang)內(nei)筒(tong)2設置(zhi)，因為內(nei)筒(tong)2的(de)(de)筒(tong)壁為錐(zhui)面結構，所以由二級進氣管(guan)(guan)5上(shang)(shang)(shang)的(de)(de)排(pai)氣孔(kong)噴出的(de)(de)氣體在(zai)吹到內(nei)筒(tong)2的(de)(de)外(wai)(wai)(wai)壁上(shang)(shang)(shang)后，受斜(xie)面的(de)(de)作用，會繼續(xu)向(xiang)下并緊貼著內(nei)筒(tong)2的(de)(de)外(wai)(wai)(wai)壁流動，由此可進一步提高(gao)內(nei)筒(tong)2的(de)(de)外(wai)(wai)(wai)壁對(dui)氣體的(de)(de)加熱效果，亦可提高(gao)對(dui)內(nei)筒(tong)2的(de)(de)冷卻作用。

在氣(qi)體流(liu)動的(de)(de)方向上(shang)，插(cha)入到內(nei)(nei)(nei)筒(tong)2的(de)(de)進(jin)氣(qi)端(duan)的(de)(de)部(bu)(bu)分第一進(jin)氣(qi)管的(de)(de)內(nei)(nei)(nei)徑(jing)優(you)選為逐漸增大，這樣(yang)不(bu)僅更(geng)適應(ying)于(yu)一級(ji)噴(pen)(pen)油管4所噴(pen)(pen)出的(de)(de)燃料的(de)(de)燃燒，而且還(huan)可與內(nei)(nei)(nei)筒(tong)2的(de)(de)形成相對應(ying)，即插(cha)入到內(nei)(nei)(nei)筒(tong)2中的(de)(de)部(bu)(bu)分一級(ji)進(jin)氣(qi)管3與內(nei)(nei)(nei)筒(tong)2之間(jian)形成的(de)(de)環形通道也是整體呈(cheng)錐(zhui)形的(de)(de)空間(jian)結構，以將(jiang)來自環形進(jin)氣(qi)腔(qiang)中的(de)(de)氣(qi)流(liu)導流(liu)向內(nei)(nei)(nei)筒(tong)2的(de)(de)內(nei)(nei)(nei)壁。

外筒(tong)1的進氣(qi)端通過第(di)一(yi)(yi)環(huan)(huan)形擋(dang)(dang)板11與一(yi)(yi)級進氣(qi)管3的外壁連接，第(di)一(yi)(yi)環(huan)(huan)形擋(dang)(dang)板11與內筒(tong)2的進氣(qi)端之(zhi)間具有間隙，這樣(yang)一(yi)(yi)方面在一(yi)(yi)級進氣(qi)管3與外筒(tong)1之(zhi)間建立(li)起了連接關系，使二者相對固定，而(er)且還(huan)在一(yi)(yi)環(huan)(huan)形擋(dang)(dang)板與內筒(tong)2的進氣(qi)端之(zhi)間自然形成(cheng)用于使環(huan)(huan)形進氣(qi)腔(qiang)中的氣(qi)體進入到內筒(tong)2中的通道。

內筒2的排氣端通過第二(er)環形擋板12與(yu)(yu)外筒1連(lian)接，這樣既可(ke)以在內筒2與(yu)(yu)外筒1之間建立起連(lian)接關系(xi)，使二(er)者(zhe)相對(dui)固定，還可(ke)以將(jiang)環形進氣腔(qiang)的上部封閉。

內筒(tong)2的(de)(de)中部優選(xuan)通(tong)過第(di)三(san)環(huan)形(xing)擋(dang)(dang)板(ban)13與(yu)外筒(tong)1連接，在第(di)三(san)環(huan)形(xing)擋(dang)(dang)板(ban)13上、并靠近內筒(tong)2的(de)(de)外壁處開(kai)設有多(duo)個通(tong)氣(qi)孔(kong)(kong)，多(duo)個通(tong)氣(qi)孔(kong)(kong)沿第(di)三(san)環(huan)形(xing)擋(dang)(dang)板(ban)13的(de)(de)周(zhou)向排(pai)布，該通(tong)氣(qi)孔(kong)(kong)優選(xuan)為長孔(kong)(kong)狀結(jie)構，以具備更佳的(de)(de)通(tong)過性；第(di)三(san)環(huan)形(xing)擋(dang)(dang)板(ban)13既可以加強(qiang)內筒(tong)2與(yu)外筒(tong)1之間的(de)(de)連接，而且(qie)利(li)用第(di)三(san)環(huan)形(xing)擋(dang)(dang)板(ban)13靠近內筒(tong)2處的(de)(de)通(tong)氣(qi)孔(kong)(kong)，在氣(qi)流(liu)(liu)向下流(liu)(liu)動的(de)(de)途中，再次(ci)限定氣(qi)流(liu)(liu)沿內筒(tong)2的(de)(de)外壁向下流(liu)(liu)動，進一步提高了氣(qi)流(liu)(liu)與(yu)內筒(tong)2的(de)(de)換熱。

以上(shang)所述僅是本發明(ming)的(de)優(you)選實施方式，應當指出，對(dui)于本技術領域的(de)普(pu)通技術人員來(lai)說，在不脫離(li)本發明(ming)技術原(yuan)理的(de)前提下(xia)，還可以做出若干改進和(he)替換，這些改進和(he)替換也(ye)應視為本發明(ming)的(de)保(bao)護范圍。