燃氣熱風爐結水垢有哪些影響及解決辦法
熱風爐是我們生活的產品,而且燃氣熱風爐是節能減排的產品,更是受到很客戶的喜愛,但是在使用燃氣熱風爐中,因為水質的問題,熱風爐內都會結水垢,那水垢對熱風爐有什麼影響呢?熱風爐水垢的形成熱風爐經過長時間運行,不可避免的出現瞭水垢、銹蝕問題,熱風爐形成水垢的主要原因是給水中帶有硬度成份,經過高溫、高壓的不斷蒸發濃縮以後,在爐內發生一系列的物理、化學反环氧地坪應,最終在受熱面上形成堅硬、致密的水垢。 對熱風爐的危害
Hot-blast stove is the product of our life, and gas hot-blast stove is the product of energy saving and emission reduction, and it is very popular with customers. But in the use of gas hot-blast stove, because of the water quality problem, scaling will be formed in the hot-blast stove. What effect does scaling have on the hot-blast stove? Hot-blast stove scaling has been formed for a long time. Scale and rust inevitably occur during operation. The main reason for scaling in hot blast stove is that the hardness component in feed water. After continuous evaporation and concentration at high temperature and high pressure, a series of physical and chemical reactions occur in the furnace, and finally a hard and dense scale is formed on the heating surface. Hazards to hot blast stove 1、導致換熱效果降低且因垢下腐蝕因素
1, resulting in reduced heat transfer and corrosion due to scale.
2、導致熱風爐水冷壁爐膛吸熱減少,熱風爐爐膛出口溫度增加,使熱風爐損失增加
2. Causing the decrease of heat absorption in the water-cooled wall hearth of the hot blast stove and the increase of the outlet temperature of the hot blast stove, the loss of the hot blast stove increases.
3、水冷壁內結垢後使傳熱效果減少,有可能導致水冷壁管壁溫度增加導致水冷壁爆管,影響熱風爐安全運行。 水垢是熱風爐的“百害之首”,是引起熱風爐事故的主要原因,其危害性主要表現在:浪費大量燃料:因為水垢的導熱系數隻有鋼材的幾十分之一,所以當受熱面結垢後會使傳熱受阻,為瞭保持熱風爐一定的出力,就必須提高火側的溫度,從而使向外輻射及排煙造成熱損失。 熱風爐清洗 現可以采用高效环保無腐蝕清洗劑對燃氣熱風爐進行清洗,清洗劑對清洗的水垢完全溶解,使設備列管露出金屬原色,降低因為結垢及生物藻類淤泥的影響。同時對氧化鐵和亞氧化鐵有剝離的作用,可延長燃氣熱風爐使用壽命、降低能耗。
印花地坪3. Scaling in the water wall reduces the heat transfer effect, which may lead to the increase of the wall temperature of the water wall and the bursting of the water wall, affecting the safe operation of the hot blast stove. Scale is the most harmful factor of hot-blast stove and the main cause of hot-blast stove accidents. Its harmfulness mainly manifests in: wasting a large amount of fuel: because the thermal conductivity of scale is only one tenth of that of steel, heat transfer will be hindered when scaling on the heating surface. In order to maintain a certain output of hot-blast stove, fire must be increased. The temperature of the side causes heat loss from outward radiation and exhaust gas. Hot blast stove cleaning can now use high-efficiency environmental protection non-corrosive cleaning agent to clean the gas hot blast stove. The cleaning agent can completely dissolve the scale of the cleaning, so that the original metal color of the equipment pipes can be exposed and the effect of scaling and biological algae sludge can be reduced. At the same time, it can peel off iron oxide and ferrous oxide, prolong the service life of gas hot blast stove and reduce energy consumption.