加熱爐是將燃料燃燒產(chǎn)生的熱量傳給被加熱介質(zhì)而使其溫度升高的一種加熱設(shè)備。被廣泛應(yīng)用于油氣集輸系統(tǒng)中，將及其井產(chǎn)物加熱至工藝所要求的溫度，以便進(jìn)行輸送、沉降、分離、脫水和初加工等工藝。

A heating furnace is a heating device that passes the heat produced by fuel to the heated medium to increase its temperature. It is widely used in oil and gas gathering and transportation system, heating crude oil, natural gas and its well products to the temperature required by the process, so as to carry out transportation, sedimentation, separation, dehydration and primary processing.

燃料氣與空氣的混合物在燃燒焰面法線方向的速度分量大于該混合物的火焰?zhèn)鞑ニ俣龋瑒t火焰被推出火孔，開始離焰，直到火焰被吹跑造成火焰熄火——脫火。燃燒器發(fā)生脫火是不允許的。

The velocity component of the mixture of fuel gas and air in the normal direction of combustion flame is larger than that of the mixture, and the flame is pushed out of the fire hole and starts to leave the flame until the flame is blown away, causing the flame to go out. It is not allowed to remove fire from the burner.

按爐溫分布，爐膛沿長(zhǎng)度方向分為預(yù)熱段、加熱段和均熱段。進(jìn)料端爐溫較低為預(yù)熱段，其作用在于利用爐氣熱量，以提高爐子的熱效率。加熱段為主要供熱段，爐氣溫度較高，以利于實(shí)現(xiàn)快速加熱。

According to the distribution of furnace temperature, the furnace is divided into preheating section, heating section and uniform heating section along the length direction.

The lower temperature of the feed end is the preheating section, and its function is to increase the heat efficiency of the furnace by utilizing the heat of the furnace gas.

The heating section is the main heating section, and the furnace gas temperature is relatively high, which is conducive to rapid heating.

緊迫停爐時(shí)，制止只用外表風(fēng)封閉控制閥，一定要封閉爐前手閥。如遇被加熱介質(zhì)中止，應(yīng)當(dāng)即救活，爐膛通入蒸汽。爐出人員及過熱蒸汽壓力計(jì)；調(diào)理風(fēng)門及煙道擋板；緊迫放空設(shè)備；防爆門；爐膛及回彎頭箱救活蒸汽線。

When the furnace is shut down, the outer closed valve must be stopped. The hand valve must be closed. If the heating medium is discontinued, it should be saved, and the furnace is connected with steam. Furnace personnel and superheated steam pressure gauge; conditioning air valve and flue baffle; urgent emptying equipment; explosion-proof door; furnace and elbow box to save steam line.