Heat conducting oil furnace with high energy utilization rate

Abstract

The invention discloses a heat conducting oil furnace with a high energy utilization rate. The heat conducting oil furnace comprises a furnace body, a combustion chamber and a heat conducting oil coiltube, wherein the combustion chamber is arranged inside the furnace body; the heat conducting oil coil tube is arranged inside the combustion chamber; a combustor is arranged at the bottom of the combustion chamber; the bottom of the combustion chamber is provided with an air inlet; the top of the combustion chamber is provided with an exhausting opening; the furnace body is provided with an oilcharging pipe and an oil discharging pipe which are both connected with the heat conducting oil coil tube; the furnace body is externally provided with an exhausting furnace in a sleeved manner; the top of the exhausting furnace is provided with a flow dividing table opposite to the exhausting opening; the inner wall of the exhausting furnace is provided with a water coil tube; the bottom and thetop of the water coil tube are correspondingly connected with a water charging pipe and a water discharging pipe; the bottom of the exhausting furnace is provided with at least one exhausting pipe which communicates with an exhausting passage; and the exhausting pipe is connected with an exhaust fan. According to the heat conducting oil furnace, the exhausting speed of waste gas can be reduced sothat more heat can be absorbed to the heat conducting oil coil tube; waste heat can be reutilized for heating water; over-high temperature inside the combustion chamber can be prevented; carbon deposition of the heat conducting oil is reduced; and the service life of the heat conducting oil coil tube is prolonged.

Description

technical field [0001] The invention belongs to the field of heat-conducting oil furnaces, and in particular relates to a heat-conducting oil furnace with high energy utilization rate. Background technique [0002] Heat-conducting oil furnace is a special boiler that uses organic heat carrier, heat-conducting oil as the working medium. The heat-conducting oil is heated by the high-temperature flue gas generated by fuel combustion. After the heat-conducting oil rises in temperature, it provides the required heat for the heat-consuming equipment. Compared with the steam boiler, the heat conduction oil furnace has the following characteristics: it can obtain a higher working temperature under a lower operating pressure, and has multiple functions such as low pressure and high temperature technical characteristics. Therefore, heat-conducting oil furnaces have been widely used in industrial production. However, although the thermal efficiency of the current heat-conducting oil f...

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Problems solved by technology

However, although the thermal efficiency of the current heat-conducting oil furnace is higher than that of the steam boiler, the temperature of the flue gas is still high when the flue gas is discharged through the chimney, and there is a problem of wasting heat and causing thermal pollution to the environment. The air inlet and the exhaust port are basically set opposite to each other, resulting in a fast discharge of exhaust gas after combustion, resulting in a lot of heat being taken away

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