爐子壽命長(zhǎng)。由于高溫作用、機(jī)械磨損和腐蝕等因素的綜合作用，爐子不可避免會(huì)有損壞，必須定期對(duì)爐子進(jìn)行檢修，應(yīng)盡可能延長(zhǎng)爐之的使用壽命，降低費(fèi)用。

勞動(dòng)條件好。要求爐子的機(jī)械化及自動(dòng)化程度高，操作條件好，安全衛(wèi)生，對(duì)環(huán)境無(wú)污染。

The furnace has a long life. Due to the combined action of high temperature, mechanical wear and corrosion, the furnace will inevitably be damaged. It is necessary to overhaul the furnace regularly, so as to prolong the service life of the furnace and reduce the cost of repair.  

The working conditi are good. It is required that the mechanization and automation of the furnace are high, the operating conditi are good, and the environment is safe and sanitary, and the environment is not polluted.

觀察氣體燃料從擴(kuò)散燃燒逐步地改變成半預(yù)混燃燒的變化過(guò)程可以更加清楚地了解半預(yù)混燃燒燃燒，預(yù)混燃燒的特點(diǎn)。

The gradual change of gaseous fuel from diffusion combustion to semi premixed combustion is observed, and the characteristics of semi premixed combustion and premixed combustion can be more clearly understood.

蓄熱式加熱爐的傳導(dǎo)傳熱：傳導(dǎo)傳熱是溫度不同的物體直接接觸（或物體存在溫差）由于自由電子的運(yùn)動(dòng)（對(duì)于鋼材）或分子的運(yùn)動(dòng)（對(duì)于爐氣）而發(fā)生的熱交換現(xiàn)象，此種傳熱發(fā)生在鋼材表面及內(nèi)部和鋼材及爐底之間。

Conduction of conduction in a regenerative heating furnace: conduction heat transfer is the direct contact of a different temperature (or the existence of a temperature difference between a body) due to the movement of free electr (for steel) or the movement of molecules (for furnace gas), which occurs between the surface and inside of the steel and between the steel and the bottom of the furnace.

對(duì)流傳熱：對(duì)流傳熱是爐氣與鋼材表面接觸時(shí)的熱交換過(guò)程，包括爐氣各部分發(fā)生位移所產(chǎn)生的對(duì)流作用及爐氣分子之間的導(dǎo)熱作用。

Convective heat transfer: convection heat transfer is the heat exchange process of the contact between the furnace gas and the steel surface, including the convection of the displacement of each part of the furnace gas and the heat conduction between the molecules of the furnace gas.