一(Yi)个(Ge)简(Jian)单(Dan)的(De)HTAC系(Xi)统(Tong)由(You)成(Cheng)对(Dui)的(De)燃(Ran)烧(Shao)器(Qi)、(?)蓄(Xu)热(Re)体(Ti)和(He)换(Huan)向(Xiang)阀(Fa)以(Yi)及(Ji)相(Xiang)应(Ying)的(De)控(Kong)制(Zhi)系(Xi)统(Tong)等(Deng)组(Zu)成(Cheng)。(?)当(Dang)B燃(Ran)烧(Shao)器(Qi)工(Gong)作(Zuo)时(Shi),(?)室(Shi)温(Wen)下(Xia)的(De)助(Zhu)燃(Ran)空(Kong)气(Qi)被(Bei)B燃(Ran)烧(Shao)器(Qi)内(Nei)已(Yi)预(Yu)热(Re)的(De)高(Gao)温(Wen)蓄(Xu)热(Re)体(Ti)加(Jia)热(Re),(?)喷(Pen)人(Ren)炉(Lu)内(Nei),(?)与(Yu)燃(Ran)气(Qi)混(Hun)合(He)燃(Ran)烧(Shao)。(?)经(Jing)炉(Lu)内(Nei)换(Huan)热(Re)以(Yi)后(Hou),(?)由(You)A燃(Ran)烧(Shao)器(Qi)排(Pai)出(Chu)炉(Lu)外(Wai),(?)同(Tong)时(Shi)加(Jia)热(Re)A燃(Ran)烧(Shao)器(Qi)内(Nei)的(De)蓄(Xu)热(Re)体(Ti)。(?)经(Jing)过(Guo)适(Shi)当(Dang)时(Shi)间(Jian)后(Hou),(?)通(Tong)过(Guo)换(Huan)向(Xiang)阀(Fa)的(De)切(Qie)换(Huan),(?)转(Zhuan)为(Wei)A燃(Ran)烧(Shao)器(Qi)工(Gong)作(Zuo)、(?)B燃(Ran)烧(Shao)器(Qi)排(Pai)烟(Yan),(?)如(Ru)此(Ci)往(Wang)复(Fu),(?)完(Wan)成(Cheng)蓄(Xu)热(Re)、(?)放(Fang)热(Re)过(Guo)程(Cheng)。(?)换(Huan)向(Xiang)的(De)频(Pin)率(Lu)通(Tong)常(Chang)设(She)置(Zhi)为(Wei)每(Mei)次(Ci)20s~(?)120s
HTAC关(Guan)键(Jian)设(She)备(Bei)-
蜂(Feng)窝(Wo)陶(Tao)瓷(Ci)蓄(Xu)热(Re)体(Ti)
蓄(Xu)热(Re)体(Ti)是(Shi)蓄(Xu)热(Re)式(Shi)燃(Ran)烧(Shao)器(Qi)的(De)重(Zhong)要(Yao)组(Zu)成(Cheng)部(Bu)分(Fen)。(?)作(Zuo)为(Wei)蓄(Xu)热(Re)介(Jie)质(Zhi),(?)蓄(Xu)热(Re)体(Ti)不(Bu)耐(Nai)高(Gao)温(Wen),(?)而(?)且(Qie)在(Zai)沿(Yan)气(Qi)流(Liu)方(Fang)向(Xiang)承(Cheng)受(Shou)较(Jiao)大(Da)的(De)热(Re)应(Ying)力(Li)(温(Wen)度(Du)梯(Ti)度(Du))。(?)实(Shi)际(Ji)应(Ying)用(Yong)中(Zhong),(?)蓄(Xu)热(Re)体(Ti)通(Tong)常(Chang)是(Shi)由(You)氧(Yang)化(Hua)铝(Lu)和(He)其(Qi)他(Ta)便(Bian)宜(Yi)的(De)材(Cai)料(Liao)合(He)成(Cheng)的(De),(?)统(Tong)称(Cheng)为(Wei)陶(Tao)瓷(Ci)。(?)这(Zhe)些(Xie)陶(Tao)瓷(Ci)的(De)比(Bi)热(Re)容(Rong)和(He)导(Dao)热(Re)系(Xi)数(Shu)通(Tong)常(Chang)较(Jiao)小(Xiao),(?)可(Ke)保(Bao)证(Zheng)较(Jiao)高(Gao)的(De)储(Chu)力(Li)和(He)较(Jiao)低(Di)的(De)散(San)热(Re)率(Lu)。(?)陶(Tao)瓷(Ci)蓄(Xu)热(Re)体(Ti)的(De)结(Jie)构(Gou)主(Zhu)要(Yao)分(Fen)为(Wei)两(Liang)类(Lei):(?)一(Yi)类(Lei)是(Shi)用(Yong)球(Qiu)形(Xing)陶(Tao)瓷(Ci)填(Tian)充(Chong)床(Chuang),(?)如(Ru)图(Tu)2a所(Suo)示(Shi),(?)陶(Tao)瓷(Ci)小(Xiao)球(Qiu)是(Shi)随(Sui)机(Ji)排(Pai)列(Lie)的(De),(?)这(Zhe)种(Zhong)球(Qiu)形(Xing)填(Tian)料(Liao)床(Chuang)的(De)压(Ya)降(Jiang)通(Tong)常(Chang)较(Jiao)大(Da)。(?)另(Ling)一(Yi)类(Lei)是(Shi)蜂(Feng)窝(Wo)结(Jie)构(Gou),(?)如(Ru)图(Tu)2b所(Suo)示(Shi),(?)均(Jun)匀(Yun)布(Bu)满(Man)六(Liu)边(Bian)形(Xing)或(Huo)方(Fang)形(Xing)孔(Kong)道(Dao),(?)这(Zhe)种(Zhong)结(Jie)构(Gou)的(De)比(Bi)传(Chuan)热(Re)面(Mian)比(Bi)球(Qiu)形(Xing)陶(Tao)瓷(Ci)大(Da),(?)同(Tong)时(Shi)质(Zhi)量(Liang)为(Wei)同(Tong)等(Deng)体(Ti)积(Ji)球(Qiu)形(Xing)蓄(Xu)热(Re)体(Ti)的(De)一(Yi)半(Ban)。(?)此(Ci)外(Wai)蜂(Feng)窝(Wo)状(Zhuang)流(Liu)道(Dao)还(Huan)具(Ju)有(You)截(Jie)面(Mian)积(Ji)大(Da)、(?)压(Ya)力(Li)损(Sun)失(Shi)小(Xiao)、(?)粉(Fen)尘(Chen)堵(Du)塞(Sai)少(Shao)等(Deng)点(Dian)。(?)一(Yi)个(Ge)设(She)计(Ji)良(Liang)好(Hao)的(De)蜂(Feng)窝(Wo)陶(Tao)瓷(Ci)蓄(Xu)热(Re)体(Ti)可(Ke)将(Jiang)空(Kong)气(Qi)预(Yu)热(Re)到(Dao)很(Hen)高(Gao)温(Wen)度(Du),(?)高(Gao)可(Ke)以(Yi)比(Bi)工(Gong)作(Zuo)温(Wen)度(Du)低(Di)50℃(?).
烧(Shao)嘴(Zui)
工(Gong)业(Ye)炉(Lu)大(Da)多(Duo)采(Cai)用(Yong)扩(Kuo)散(San)式(Shi)燃(Ran)烧(Shao),(?)扩(Kuo)散(San)式(Shi)烧(Shao)嘴(Zui)的(De)气(Qi)流(Liu)速(Su)度(Du)较(Jiao)慢(Man)。(?)HTAc系(Xi)统(Tong)中(Zhong)使(Shi)用(Yong)的(De)烧(Shao)嘴(Zui)如(Ru)图(Tu)3所(Suo)示(Shi),(?)气(Qi)体(Ti)通(Tong)过(Guo)中(Zhong)心(Xin)管(Guan)和(He)中(Zhong)心(Xin)烧(Shao)嘴(Zui)进(Jin)入(Ru)炉(Lu)膛(Tang),(?)而(?)助(Zhu)燃(Ran)空(Kong)气(Qi)通(Tong)过(Guo)设(She)置(Zhi)在(Zai)燃(Ran)气(Qi)烧(Shao)嘴(Zui)周(Zhou)围(Wei)的(De)孔(Kong)口(Kou)射(She)人(Ren)炉(Lu)膛(Tang),(?)燃(Ran)气(Qi)和(He)助(Zhu)燃(Ran)空(Kong)气(Qi)几(Ji)乎(Hu)平(Ping)行(Xing),(?)且(Qie)速(Su)度(Du)较(Jiao)快(Kuai),(?)因(Yin)此(Ci)动(Dong)量(Liang)大(Da),(?)喷(Pen)射(She)距(Ju)离(Li)长(Chang),(?)大(Da)量(Liang)卷(Juan)吸(Xi)周(Zhou)围(Wei)烟(Yan)气(Qi),(?)降(Jiang)低(Di)反(Fan)应(Ying)区(Qu)的(De)高(Gao)温(Wen)度(Du),(?)从(Cong)而(?)减(Jian)少(Shao)NOx生(Sheng)成(Cheng);(?)混(Hun)合(He)燃(Ran)烧(Shao)区(Qu)域(Yu)一(Yi)般(Ban)在(Zai)烧(Shao)嘴(Zui)的(De)下(Xia)游(You),(?)可(Ke)以(Yi)形(Xing)成(Cheng)大(Da)的(De)热(Re)氛(Fen)围(Wei)区(Qu)域(Yu)。(?)
燃(Ran)料(Liao)适(Shi)应(Ying)性(Xing)
虽(Sui)然(Ran)HTAC技(Ji)术(Shu)中(Zhong)常(Chang)使(Shi)用(Yong)的(De)燃(Ran)料(Liao)是(Shi)气(Qi),(?)但(Dan)由(You)于(Yu)助(Zhu)燃(Ran)空(Kong)气(Qi)预(Yu)热(Re)温(Wen)度(Du)高(Gao),(?)一(Yi)些(Xie)以(Yi)往(Wang)难(Nan)以(Yi)应(Ying)用(Yong)的(De)低(Di)热(Re)值(Zhi)的(De)燃(Ran)料(Liao)也(Ye)可(Ke)以(Yi)被(Bei)HTAC技(Ji)术(Shu)使(Shi)用(Yong),(?)实(Shi)现(Xian)高(Gao)效(Xiao)、(?)减(Jian)排(Pai)的(De)目(Mu)标(Biao)。(?)意(Yi)大(Da)利(Li)Cavigiolo等(Deng)人(Ren)发(Fa)现(Xian),(?)当(Dang)K,(?)>5并(Bing)且(Qie)炉(Lu)温(Wen)度(Du)超(Chao)过(Guo)800℃(?)时(Shi),(?)低(Di)热(Re)值(Zhi)的(De)生(Sheng)物(Wu)质(Zhi)气(Qi)也(Ye)可(Ke)以(Yi)实(Shi)现(Xian)无(Wu)焰(Yan)燃(Ran)烧(Shao),(?)烟(Yan)气(Qi)中(Zhong)N0x浓(Nong)度(Du)很(Hen)低(Di)。(?)日(Ri)本(Ben)Kawai等(Deng)人(Ren)将(Jiang)HTAc技(Ji)术(Shu)应(Ying)用(Yong)到(Dao)以(Yi)煤(Mei)气(Qi)化(Hua)产(Chan)生(Sheng)的(De)低(Di)热(Re)值(Zhi)气(Qi)体(Ti)为(Wei)燃(Ran)料(Liao)的(De)锅(Guo)炉(Lu)上(Shang),(?)降(Jiang)低(Di)了(Liao)N0x排(Pai)放(Fang)低(Di),(?)同(Tong)时(Shi)具(Ju)有(You)传(Chuan)热(Re)性(Xing)能(Neng)好(Hao)、(?)噪(Zao)声(Sheng)小(Xiao)等(Deng)点(Dian)。(?)荷(He)兰(Lan)zhu等(Deng)人(Ren)将(Jiang)HTAc技(Ji)术(Shu)应(Ying)用(Yong)于(Yu)乙(Yi)醇(Chun)喷(Pen)雾(Wu)燃(Ran)烧(Shao),(?)并(Bing)讨(Tao)论(Lun)了(Liao)不(Bu)同(Tong)氧(Yang)浓(Nong)度(Du)和(He)炉(Lu)温(Wen)对(Dui)喷(Pen)雾(Wu)燃(Ran)烧(Shao)共(Gong)流(Liu)条(Tiao)件(Jian)的(De)影(Ying)响(Xiang)
高(Gao)温(Wen)空(Kong)气(Qi)燃(Ran)烧(Shao)(HTAC)技(Ji)术(Shu)在(Zai)与(Yu)传(Chuan)统(Tong)工(Gong)业(Ye)炉(Lu)的(De)
燃(Ran)烧(Shao)技(Ji)术(Shu)相(Xiang)比(Bi)主(Zhu)要(Yao)特(Te)点(Dian)如(Ru)下(Xia):(?)首(Shou)先(Xian),(?)助(Zhu)燃(Ran)空(Kong)气(Qi)和(He)烟(Yan)气(Qi)通(Tong)过(Guo)蜂(Feng)窝(Wo)陶(Tao)瓷(Ci)蓄(Xu)热(Re)体(Ti)间(Jian)接(Jie)交(Jiao)换(Huan)热(Re)量(Liang),(?)辅(Fu)以(Yi)对(Dui)蓄(Xu)热(Re)体(Ti)结(Jie)构(Gou)和(He)换(Huan)向(Xiang)频(Pin)率(Lu)的(De)化(Hua)设(She)计(Ji),(?)效(Xiao)能(Neng)普(Pu)遍(Bian)高(Gao)于(Yu)空(Kong)气(Qi)预(Yu)热(Re)器(Qi)。(?)其(Qi)次(Ci),(?)高(Gao)速(Su)喷(Pen)射(She)出(Chu)的(De)高(Gao)温(Wen)预(Yu)热(Re)空(Kong)气(Qi)能(Neng)够(Gou)在(Zai)内(Nei)部(Bu)卷(Juan)吸(Xi)烟(Yan)气(Qi),(?)降(Jiang)低(Di)了(Liao)氧(Yang)浓(Nong)度(Du),(?)使(Shi)温(Wen)度(Du)分(Fen)布(Bu)趋(Qu)于(Yu)均(Jun)匀(Yun),(?)温(Wen)度(Du)峰(Feng)值(Zhi)降(Jiang)低(Di),(?)减(Jian)少(Shao)NOx排(Pai)放(Fang)。(?)另(Ling)外(Wai),(?)由(You)于(Yu)预(Yu)热(Re)空(Kong)气(Qi)的(De)热(Re)量(Liang)大(Da),(?)多(Duo)的(De)低(Di)热(Re)值(Zhi)燃(Ran)料(Liao)可(Ke)以(Yi)得(De)到(Dao)应(Ying)用(Yong)。(?)