Industrial heating device with molten salt as heat carrier

Abstract

An industrial heat supply device with a fused salt as a heat carrier comprises a fused salt furnace and a fused salt storage groove, wherein the fused salt storage groove is placed under the ground, a fused salt inlet pipe of the fused salt furnace is connected to two fused salt pumps which are connected in parallel inside the fused salt storage groove, a fused salt outlet pipe of the fused salt furnace is connected to a kind of heat utilization equipment, a fused salt outlet of the heat utilization equipment is communicated with the fused salt storage groove, an electric heater is placed inside the fused salt storage groove, an inlet and an outlet of the electric heater are respectively connected with a thermal medium inlet pipe and a thermal medium outlet pipe, a shell body of the fused salt furnace is shaped like a vertical cylinder, a heated face of the fused salt furnace is constituted of inner and outer layers of spiral coils, and a combustor is placed on the lower part of a furnace body. The device provided by the invention realizes steady combustion, can obtain a high working temperature under a low operation pressure, can be taken as a high-temperature thermal source at a temperature under 500 DEG C, obtains a steady heat supply temperature, can realize accurate adjustment, has high thermal efficiency, obtains prominent energy-saving effect, and is equipped with complete operation control and safety detection devices.

Description

technical field [0001] The invention relates to the technical field of heating equipment, in particular to an industrial heating device using molten salt as a heat carrier. Background technique [0002] At present, most of the heating equipment on the market use coal, gas or oil to heat and dry, and exchange the heated air through water or oil. One problem, a molten salt furnace appeared on the market. The molten salt is a mixture of potassium nitrate (KNO3), sodium nitrite (NaNO2) and sodium nitrate (NaNO3). The heat carrier furnace heats the powdered molten salt to the melting point. Above 142°C, make it recycle in the melt flow state. The maximum working temperature can reach a high temperature of 600°C. However, the combustion of the current molten salt furnace is unstable, and it cannot obtain a higher working temperature under a lower operating pressure. The heating temperature cannot be adjusted accurately, and the energy saving effect is not satisfactory. Content...

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Problems solved by technology

[0003] The invention provides an industrial heating device using molten salt as a heat carrier to solve the problems of unstable combustion, inaccurate adjustment of heating temperature and poor energy-saving effect existing in the prior art

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