油煙(yan)濃(nong)度(du)檢測探頭(tou)(油煙傳(chuan)感器)介(jie)紹
油(you)煙(yan)(yan)(yan)濃度(du)檢測(ce)探(tan)頭(tou)是智易時代研(yan)發的可實(shi)現(xian)油(you)煙(yan)(yan)(yan)排(pai)放濃度(du)實(shi)時監測(ce)的儀(yi)(yi)器,適(shi)用(yong)于餐廳、飯店、機(ji)關食(shi)堂等(deng)單位排(pai)放的烹飪油(you)煙(yan)(yan)(yan)濃度(du)監測(ce)用(yong)傳感器。不同于傳統油(you)煙(yan)(yan)(yan)檢測(ce)需(xu)要現(xian)場采(cai)樣并取(qu)回實(shi)驗(yan)室進(jin)行(xing)分析后才(cai)能得出油(you)煙(yan)(yan)(yan)濃度(du)數(shu)據(ju),本油(you)煙(yan)(yan)(yan)檢測(ce)探(tan)頭(tou)采(cai)用(yong)了的基于氣敏(min)組(zu)件的油(you)煙(yan)(yan)(yan)傳感技術(shu),可以對油(you)煙(yan)(yan)(yan)成分進(jin)行(xing)綜合分析,從而得到量(liang)化、較準確的油(you)煙(yan)(yan)(yan)濃度(du)值,并可感知煙(yan)(yan)(yan)氣溫(wen)度(du)、濕(shi)(shi)度(du)等(deng)信息(xi),同時可搭配(pei)數(shu)據(ju)采(cai)集傳輸儀(yi)(yi),實(shi)現(xian)油(you)煙(yan)(yan)(yan)濃度(du)、溫(wen)度(du)、濕(shi)(shi)度(du)的實(shi)時在(zai)線監測(ce)。
工(gong)作(zuo)原理:
聲(sheng)波(bo)(bo)(bo)器件表(biao)面的波(bo)(bo)(bo)速和(he)(he)(he)頻(pin)率(lv)會隨外界環境的變(bian)化(hua)而發生漂(piao)(piao)移(yi)。氣(qi)敏(min)傳(chuan)感器就(jiu)(jiu)是利用(yong)(yong)這種(zhong)性能在壓(ya)電(dian)晶體表(biao)面涂覆一(yi)層(ceng)選擇性吸(xi)附某氣(qi)體的氣(qi)敏(min)薄(bo)(bo)膜(mo),當該(gai)氣(qi)敏(min)薄(bo)(bo)膜(mo)與待測氣(qi)體相互作(zuo)用(yong)(yong)(化(hua)學(xue)作(zuo)用(yong)(yong)或(huo)生物作(zuo)用(yong)(yong),或(huo)者(zhe)是物理吸(xi)附),使得氣(qi)敏(min)薄(bo)(bo)膜(mo)的膜(mo)層(ceng)質量(liang)(liang)和(he)(he)(he)導(dao)電(dian)率(lv)發生變(bian)化(hua)時,引(yin)起(qi)(qi)壓(ya)電(dian)晶體的聲(sheng)表(biao)面波(bo)(bo)(bo)頻(pin)率(lv)發生漂(piao)(piao)移(yi);氣(qi)體濃度不同(tong),膜(mo)層(ceng)質量(liang)(liang)和(he)(he)(he)導(dao)電(dian)率(lv)變(bian)化(hua)程度亦不同(tong),即(ji)引(yin)起(qi)(qi)聲(sheng)表(biao)面波(bo)(bo)(bo)頻(pin)率(lv)的變(bian)化(hua)也(ye)不同(tong)。通過測量(liang)(liang)聲(sheng)表(biao)面波(bo)(bo)(bo)頻(pin)率(lv)的變(bian)化(hua)就(jiu)(jiu)可以獲(huo)得準確的反應氣(qi)體濃度的變(bian)化(hua)值。
探頭安裝(zhuang)位置:
在煙道(dao)上安裝,要(yao)避開彎(wan)道,離煙道出口(kou)的距離要(yao)大于(yu)2倍煙道直徑
深度:離(li)煙道(dao)壁的距(ju)離(li)要大于10cm。
探頭安(an)裝方法:
1)探頭尺寸:φ45*270mm,打孔直徑(46mm/47mm即可);
2)在(zai)安裝位置用自攻(gong)螺絲固(gu)定(ding)好(hao)法蘭;
3)將探(tan)頭(tou)伸進煙道到合適(shi)位(wei)置后(hou),固(gu)定法蘭與探(tan)頭(tou);
4)在探(tan)頭和煙道處打一圈密封膠,以防油煙泄露(lu);
5)如果(guo)是戶外(wai)安裝,需在引線連接(jie)處做好戶外(wai)防(fang)護措施;
6)探頭引線有4股(gu),分別(bie)是(shi)正、負(fu)、485A、485B(對應紅(hong)黑(hei)黃藍四線(xian)),可利(li)用航空(kong)插頭方(fang)式進(jin)行引線(xian)連接,安裝方(fang)便;