English
At present, energy saving and environmental protection are advocated, and boiler transformation is carried out. The steam heating and boiler heating methods used in the wood panel hot press heater are gradually eliminated. Instead, most board factories choose electric heating heat transfer oil furnace, with high temperature heat transfer oil as the carrier, through electric heating and high temperature oil pump forcibly closed liquid phase circulation, so as to achieve the function of heating heating equipment.
Working principle and characteristics of electric heating heat transfer oil furnace
The electric heating heat-conducting oil furnace uses high-temperature heat-conducting oil as the heat-transfer medium, which is heated up by electric heating, and the heat carrier is forcedly circulated in the liquid phase through the high-temperature oil pump, and the heat energy is transferred to the heat-using equipment. Temperature probes are installed on the inlet and outlet of the heat transfer oil to ensure the required temperature. The advantages of plywood hot press electromechanically heated heat transfer oil furnace are reflected in the following aspects:
1. The electric heating heat transfer oil furnace has high thermal efficiency and saves energy.
We all know that steam releases heat when it reaches the hot plate and condenses into water. At this time, if the hot water can be recovered, the loss of part of the heat can be reduced. If it cannot be fully recovered, the heat of the hot water will be completely wasted. According to statistics, about 20% of the heat of steam heating is wasted. In the electric heating heat transfer oil furnace, the heat transfer oil is circulated and heated, which will not cause unnecessary heat loss. The thermal efficiency of the electric heating heat transfer oil furnace can reach 90%, which is more energy-saving.
The heating of the plywood hot press is realized by heating the heat transfer oil through the heating pipe of the electric heating heat transfer oil furnace. Unlike steam heating, it needs to be continuously exhausted to heat, resulting in a lot of heat waste.
2. Electric heating heat transfer oil furnace has high safety and uniform temperature
In order to meet the heating needs of the plywood hot press, the pressure of the boiler should be above 13 kg, while the electric heating heat transfer oil furnace generally only needs 3-4 kg of pressure to heat the temperature to a maximum of 350 °C. Since the temperature of the steam is determined by the pressure, when there is a difference in position, there is a difference in pressure and a difference in temperature. The steam-heated plywood hot press is prone to temperature difference and uneven heating, which affects the quality of the plywood. The heat transfer oil used in the electric heating heat transfer oil furnace has good heat transfer performance, and the temperature is uniform and stable, and there will be no temperature difference.
3. Improve production efficiency and reduce enterprise costs
Compared with boiler heating, the electric heating heat transfer oil furnace is simple to operate, and the automatic temperature control can heat the press in advance and stabilize the temperature of the press. Because there are many hidden safety hazards in the boiler, annual inspection, setting up a special boiler room, and special personnel operation are also required, which also increases the cost of the enterprise. Because the electric heating heat transfer oil furnace has uniform temperature and good stability, it also plays a great role in improving product quality. In the current market economy situation, the plywood industry is actively trying to reduce production costs and improve product quality. The transformation of steam-heated presses into electric-heated heat-conducting oil furnaces has proven to be an effective way.
