Sea water desalinating apparatus with vertical low-resistance heat pipes

Abstract

The invention discloses a seawater desalinating apparatus with vertical low-resistance heat pipes, comprising: a flue gas source, a first heat exchanger, a first heat pipe seawater pond, a second seawater pond and a seawater desalinator, the evaporation ends of the first heat pipes are placed in the first heat exchanger, the condensation ends of the first heat pipes are placed in the seawater ponds, a first flue gas inlet is connected to the flue gas source, a first flue gas outlet is connected to a first suction fan, a first seawater inlet is connected to a source of seawater, and a first seawater outlet is connected to the seawater desalinator; the outside surface of the first heat pipes is provided with linear bent heat exchange parts in high-density multi-tier multiple rows. Thus, in the invention, the waste heat of flue gas can be used to preheat seawater, there is no need to utilize other energy sources for heating seawater, thus saving energy, the outside surface of each of the first heat pipe evaporation ends and condensation ends is provided with high-density linear bent heat exchange parts, the high-density linear bent heat exchange parts enable the actual heat transfer area of the first heat pipes to be greatly improved, and the industrial exhaust heat utilizing efficiency of the invention is further improved.

Description

technical field [0001] The invention relates to a seawater desalination device, in particular to a seawater desalination device with a vertical low-resistance heat pipe. Background technique [0002] At present, the demand for fresh water is increasing rapidly, but fresh water resources are limited. Therefore, how to desalinate seawater into fresh water for human consumption has become a major issue for human beings in the 21st century. [0003] Distillation is often used in seawater desalination, and low-temperature multi-effect seawater desalination technology is one of them. However, at present, the traditional low-temperature multi-effect evaporator has a relatively large difference in heat transfer, and the heat transfer coefficient is low. The efficiency of a single low-temperature multi-effect evaporator is not high. high. In addition, most of the existing seawater desalination devices use steam turbines in thermal power plants to heat the pretreated seawater to abou...

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Problems solved by technology

[0003] Distillation is often used in seawater desalination, and low-temperature multi-effect seawater desalination technology is one of them. However, at present, the traditional low-temperature multi-effect evaporator has a relatively large difference in heat transfer, and the heat transfer coefficient is low. The efficiency of a single low-temperature multi-effect evaporator is not high. high

In addition, most of the existing seawater desalination devices use steam turbines in thermal power plants to heat the pretreated seawater to about 68 degrees. This method will cause huge energy consumption. If industrial waste heat can be fully utilized in seawater desalination devices, It will greatly reduce the cost of seawater desalination

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