Heat supply device outputting hot oil

Abstract

The invention discloses a heat supply device outputting hot oil. The heat supply device comprises an oil bin barrel, a furnace, a water inlet pipe, a water vapor output pipe, a high-boiling-point liquid heat supply pipeline and a heat supply module. The furnace comprises a spiral coil pipe and a spiral sealing plate. Cracks between all circles of spirals of the spiral coil pipe are welded throughthe spiral sealing plate. The furnace is arranged in the oil bin barrel, and a jacket space is formed between the oil bin barrel and the furnace and internally provided with a high-boiling-point liquid layer. An air bin is formed between the high-boiling-point liquid layer and the top of the oil bin barrel, and a ventilation hole through which the air bin communicates with the outside is formed inthe top of the oil bin barrel. The furnace is provided with a heating device, the water inlet pipe is connected with one end of the spiral coil pipe, the water vapor output pipe is connected with theother end of the spiral coil pipe, the heating module is arranged on the high-boiling-point liquid heat supply pipeline, and the high-boiling-point liquid heat supply pipeline is provided with an outer oil pump. The heat supply device can output hot oil and has the beneficial effects that the heat exchange efficiency is high, and safety is good.

Description

technical field [0001] The invention relates to the field of industrial heating, in particular to a heating device for outputting thermal oil. Background technique [0002] A boiler is a mechanical device that uses heat from fuel or other energy sources to heat water into hot water or steam. The hot water or steam generated in the boiler can directly provide the required thermal energy for industrial production and people's life, and can also be converted into mechanical energy through a steam power plant, or converted into electrical energy through a generator. Boilers that provide hot water are called hot water boilers, which are mainly used in daily life, and also have a small amount of application in industrial production. Boilers that generate steam are called steam boilers, and are mostly used in thermal power stations, ships, locomotives, and industrial and mining enterprises. [0003] The water-cooled wall is the main radiation evaporation heating surface of the bo...

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Problems solved by technology

[0006] This kind of membrane water-cooled wall with straight tube longitudinal welding has many defects: the one-way flow of water vapor in the straight tube is too smooth, the heat transfer intensity is low, and it is not convenient to realize forced circulation flow with multiple tubes in parallel; its volume is large and its structure is not compact enough to It is very suitable for medium and small boilers; the inner wall of the straight tube furnace makes it inconvenient for heat sources such as flame or flue gas to form horizontal erosion on the tube wall, and the heat exchange efficiency is low; The structure of the furnace causes the flame, the radiation of the flue gas, and the dead angle of the flow, which significantly reduces the heat transfer efficiency. Additional welding and assembly procedures are required before the installation of the furnace, which increases the installation workload; the structural strength of the straight-tube membrane fireplace panel is not ideal , it needs to be equipped with a large-scale steel frame support to form the furnace; the straight tube-shaped membrane wall has a large amount of deformation due to thermal expansion and contraction, and the thermal stress is large

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