Single-pipe winding type heat exchange device and heat exchange method

Abstract

The invention discloses a single-pipe winding type heat exchange device and a heat exchange method. The single-pipe winding type heat exchange device comprises a heat exchange medium spiral pipeline and a heat exchanger shell, a middle heat exchange pipe is arranged in an inner cavity of the heat exchanger shell, a steam pipeline outlet is connected to the top of the middle heat exchange pipe, and a water supply and supplement device is connected to the side wall of the middle heat exchange pipe; and the heat exchange medium spiral pipeline is wound on the outer surface of the middle heat exchange pipe, a heat exchange medium inlet is formed in one end of the heat exchange medium spiral pipeline, a heat exchange medium outlet is formed in the other end of the heat exchange medium spiral pipeline, the heat exchange medium inlet is located in the top end face of the middle heat exchange pipe, and the heat exchange medium outlet is located in the side wall of the bottom of the middle heat exchange pipe. By means of the single-pipe winding type heat exchange device, preheating, evaporation and overheating processes of a water medium can be achieved in one heat exchanger, the size of the heat exchanger is reduced, the efficiency of the heat exchanger is improved, and the cost of the heat exchanger is reduced.

Description

technical field [0001] The invention belongs to the technical field of heat exchangers, in particular to a single-tube winding heat exchange device and a heat exchange method. Background technique [0002] A heat exchanger is a device that passes fluids of different temperatures into the heat exchange tube and the shell for heat exchange. Common coil heat exchange equipment has insufficient medium contact area between the tube side and the shell side, resulting in low heat exchange efficiency. , and the shell side and tube side are mostly used for heat exchange, and the volume is relatively large, so the process of preheating, evaporating, and overheating from feed water cannot be realized in one heat exchanger, which greatly reduces the efficiency of the equipment and increases the exchange rate. The number and volume of heat exchangers will increase the cost of heat exchange equipment. Contents of the invention [0003] In order to solve the problems existing in the pri...

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Problems solved by technology

[0002] A heat exchanger is a device that passes fluids of different temperatures into the heat exchange tube and the shell for heat exchange. Common coil heat exchange equipment has insufficient medium contact area between the tube side and the shell side, resulting in low heat exchange efficiency. , and the shell side and tube side are mostly used for heat exchange, and the volume is relatively large, so the process of preheating, evaporating, and overheating from feed water cannot be realized in one heat exchanger, which greatly reduces the efficiency of the equipment and increases the exchange rate. The number and volume of heat exchangers increase the cost of heat exchange equipment

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