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            討論一下電加熱反應釜中液體的燃燒速度

            發布日期:2019-09-19 04:28:29 訪問次數:638

            小易為你介紹一下電加熱反應釜中液體的燃燒速度。

            電加熱反應釜液體的燃燒速率在工業上用兩種方法表示:一種是每單位面積每單位時間燃燒的反應器液體的質量,稱為反應器液體的質量燃燒速度; 另一個是單位時間內部燃燒的反應器液體的高度表示稱為反應器液體燃燒的線速度。

             1.電加熱反應釜液體的初始溫度越高,燃燒的速度越快。 多組分混合反應釜的液體的燃燒速率通常是快速和緩慢的。 例如,當原油,汽油,煤油,重油和其他石油產品燃燒時,首先蒸發具有高燃燒速度的低沸點組分。 隨著燃燒的進行,反應器液體中高沸點組分的含量相對增加,相對密度,粘度和閃點也相對增加,蒸發速率逐漸降低,燃燒速度逐漸減慢。

             2.反應器的液體燃燒速率取決于反應器中液體的蒸發,即反應器中的液體燃燒首先蒸發然后燃燒。 反應器的液體燃燒速率與初始溫度,熱容量,蒸發潛熱,火焰的輻射能力等有關。

             3.不含水的易燃反應器液體比含水反應器含有更快的燃燒液體,特別是對于重質石油產品的早期階段。 如果反應器液體在罐中燃燒,則燃燒速率還與各種因素有關,例如罐直徑,罐液位和液 - 氣接觸面積。 通常,隨著罐的直徑增加,燃燒速率增加,并且低液位燃燒比高液位燃燒更快。 同時,風對液體表面的火焰蔓延速度也有一定的影響。 當風速達到一定臨界值時,燃燒速度下降,甚至吹滅火焰。

             電加熱反應釜的液體燃燒速率也反映了反應器中液體燃燒的風險,并且反應釜具有低的液體火災風險,并且比在火災情況下更容易控制反應器中的液體。

            英文

            Xiaoyi will introduce the burning speed of liquid in the electric heating reactor for you.


            The burning rate of liquid in electric heating reactor is expressed in two ways in industry: one is the mass of reactor liquid burning per unit area per unit time, which is called the mass burning rate of reactor liquid; the other is the linear velocity of reactor liquid burning per unit time. Degree.


            1. The higher the initial temperature of liquid, the faster the combustion rate. The combustion rate of liquid in multi-component mixing reactor is usually fast and slow. For example, when crude oil, gasoline, kerosene, heavy oil and other petroleum products are burned, the low boiling point components with high combustion rate are evaporated first. With the combustion proceeding, the content of high boiling point components in the reactor liquid increases, the relative density, the viscosity and flash point increase, the evaporation rate decreases and the combustion rate slows down.


            2. The liquid combustion rate of the reactor depends on the evaporation of the liquid in the reactor, that is, the liquid combustion in the reactor evaporates first and then burns. The liquid combustion rate of the reactor is related to the initial temperature, heat capacity, latent heat of evaporation and radiation capacity of flame.


            3. Non-aqueous flammable reactor liquids contain faster combustion liquids than aqueous reactor liquids, especially in the early stage of heavy petroleum products. If the reactor liquid burns in the tank, the combustion rate is also related to various factors, such as tank diameter, tank level and liquid-gas contact area. Generally, with the increase of tank diameter, the combustion rate increases, and the combustion at low level is faster than that at high level. At the same time, the wind has a certain influence on the flame spreading speed on the liquid surface. When the wind speed reaches a certain critical value, the combustion speed decreases, and even the flame is blown out.


            The liquid combustion rate of the electrothermal reactor also reflects the risk of liquid combustion in the reactor, and the reactor has a low risk of liquid fire, and it is easier to control the liquid in the reactor than in the case of fire.

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