A pipe-connected steam heat exchanger

Abstract

The invention provides a vapor heat exchanger. The vapor heat exchanger comprises a collecting box and steam tubes, wherein the steam tubes upwards extend from the collecting box; a steam inlet and acondensed water outlet are formed in the collecting box; steam enters the collecting box, and upwards flows from the collecting box to enter the steam tubes; the steam tubes perform heat exchange withoutside to form condensed water; condensed water returns into the collecting box under action of the gravity, and flows out from a water return hole in the lower part of the collecting box; a communication tube is arranged between at least two adjacent steam tubes of the multiple steam tubes; multiple communication tubes are arranged between adjacent steam tubes from the lower parts of the steamtubes to the upper parts of the steam tubes; and the diameters of the communication tubes are continuously increased from the lower parts of the steam tubes to the upper parts of the steam tubes. Along with upward flow of fluid, fluid continuously releases heat, and released heat in different heat collecting tubes becomes more and more uniform, and therefore, pressure balance can be guaranteed tobe reached as quickly as possible in a fluid flowing process.

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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