In the past 20 Year years in China, the proportion of non-oxidizing heating furnaces with advanced levels developed domestically and introduced, such as Vacuum Furnace , protective atmosphere furnaces, Controlled Atmosphere furnaces, Ion Nitriding furnaces, etc., is less than 20%. Even so, these advanced heating Equipment have not fully played Equipment due role because of the low quality of management and operators.
Therefore, Technical Renovation for heat treatment heating furnaces is imperative. It is necessary to promote new technologies, develop new process materials, and train employees to improve the quality of industry employees. The renewal of heat treatment process equipment is also quite arduous. While promoting the adoption of new-type vacuum heating Equipment , protective atmosphere, and Controlled Atmosphere heating Equipment , it is equally important to carry out Technical Renovation on traditional existing old heating Equipment . Choosing practical and feasible practical solutions and Technical Renovation measures and promoting them can create considerable wealth for enterprises and the country.
Day Natural gas is the best energy source. Reasonable selection of energy is the primary issue that Heat Treatment Equipment Energy Saving needs to consider. The energy sources for heat treatment can generally be divided into two categories: electric energy and fuel. Whether to use electricity or fuel, and which type of fuel to use, depends on comprehensive factors such as production cost, energy supply conditions, the difficulty of operation and control, Reliability , the characteristics of the heat treatment process, and the impact on the ecological environment.
Electric heating is clean, the temperature is easy to control, there are few auxiliary facilities, Easy Operation are its advantages. Heating with a resistance furnace can theoretically achieve a heat utilization rate of 70% to 80%, but electricity is a secondary energy source. Considering the efficiency of power generation, the overall heat utilization rate of a resistance furnace does not exceed 30%. Electric energy is expensive, which leads to high production costs. Due to the development of science and technology and the increase in the proportion of hydropower and nuclear power, the price of electric energy has a trend of relative reduction internationally. Therefore, the current international trend is that the proportion of electric energy used is gradually increasing.
Using fuel is cheaper than using electricity, but its combustion process is relatively complex. At the same time, using fuel causes more environmental pollution than using electricity. However, with the advancement of control technology, precise temperature control for gas replacing electricity and liquid fuel furnaces has become possible.
Day Gas is a primary energy source, Heat Treatment Furnace in addition to obtaining at least 30% of Thermal Efficiency from direct combustion, the waste heat from flue gas can also be used to preheat combustion, for air, Tempering Furnace heating, cleaning fluid and Quenching Oil heating as well as other domestic uses, enabling the absolute heat utilization rate to reach over 80%. Currently, heat treatment fuel furnaces account for a considerable proportion in advanced industrial countries.
According to the survey, the proportion of fuel-fired furnaces used for heat treatment in Western European countries accounts for 20%~30%, and the United States accounts for 25.5%, while fuel-fired furnaces in Japan mainly use heavy oil, kerosene, liquefied gas and city gas, accounting for a total of 61.4%.
In the past 10 Year years, China Day has achieved major breakthroughs in fuel resource exploration. This will create very convenient gas utilization conditions for the heat treatment industry. The majority of enterprises should recognize this favorable prospect of changes in heat treatment energy sources, and fully consider and utilize it in the updating of heat treatment production Technical Renovation and Equipment .
The effect of a round furnace Energy Saving is obvious. Enterprises usually select the furnace type based on process requirements, workpiece shape and size, and production volume. From the perspective of heat treatment energy utilization, the efficiency, sealing performance and outer shape of the heating furnace should be considered. When the workpiece has a large batch and a single variety, a continuous furnace should be used. Under the same Furnace Chamber volume, a cylindrical round furnace has a more obvious effect than a square furnace Energy Saving .
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