A steam heat exchanger for drying medicinal materials

Abstract

The invention provides a steam heat exchanger. The steam heat exchanger comprises a collecting box and steam pipes, the steam pipes extends upwards from the collecting box, the collecting box is provided with a steam inlet and a condensed water outlet, the steam enters the collecting box, then flows upwards from the collecting box and enters the steam pipes, the steam pipes and the outside are subjected to heat exchange to form condensed water, the condensed water returns to the collecting box under the action of gravity, and then flows out from a water returning opening in the lower part of the collecting box; a plurality of steam pipes are arranged, a communicating pipe is arranged between at least two adjacent steam pipes, a plurality of communicating pipes are arranged between the adjacent steam pipes from the lower parts of the steam pipes to the upper parts of the steam pipes, and the distance between the adjacent communicating pipes is continuously reduced from the lower parts of the steam pipes to the upper parts of the steam pipes. Due to the fact that along with flowing upward of the fluid, the fluid continuously releases heat, along with continuously heat releasing of the fluid, heat releasing in different heat collecting pipes gets more and more ununiformly, by virtue of above arrangement, the pressure balance can be achieved as soon as possible in the fluid flowingprocess.

Description

technical field [0001] The invention relates to the fields of boiler technology and heat exchangers, in particular to an intelligently controlled evaporator and a steam heat exchanger thereof. Background technique [0002] An evaporator is a mechanical device that uses heat from fuel or other energy sources to heat water into steam. The evaporator has a wide range of applications, and is widely used in garment factories, dry cleaners, restaurants, steamed bun shops, canteens, restaurants, factories and mines, bean products factories and other places. The steam generation system includes an evaporator, and the steam generated by the evaporator is generally used in a steam utilization device, but there is a lack of corresponding intelligent control adjustment between the steam utilization device and the evaporator, such as controlling the steam generation of the evaporator according to the conditions of the steam utilization equipment. Therefore, the present invention mainly ...

AI Technical Summary

Problems solved by technology

During the evaporation process of the heat exchange tube, liquid will inevitably be carried into the steam tube. At the same time, due to the exothermic condensation at the condensation end, there will be liquid in the condensation end, and the liquid will inevitably enter the steam tube, so that the fluid in the heat exchange tube will It is a vapor-liquid mixture. The existence of a vapor-liquid mixture causes the gas to mix together, and the heat transfer capacity between the gas and the liquid decreases, which greatly affects the heat transfer efficiency.

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