Condensation enhancement and heating type seawater desalter

Abstract

The invention discloses a condensation enhancement and heating type seawater desalter comprising a casing and a heating pipe, wherein the lower half part of the casing is a vacuum cavity, the inner wall of the casing is additionally provided with a heat insulation layer, and the lower part of the casing is provided with an oil inlet pipe and an oil outlet pipe; an oil outlet of the oil inlet pipe is communicated with an oil inlet of the oil outlet pipe, and the oil inlet pipe and the oil outlet pipe are arranged in the casing along the axial direction; and the upper half part of the casing is of an arc saw tooth shape, a water receiving tank is arranged below each groove of saw teeth and fixedly connected to the inside of the casing along the axial direction, and the end head of one end of each water receiving tank is connected with a freshwater outlet pipe. Based on the desalter, the contact area between the top of the casing and the outside air is increased, the speed that steam condenses into water is improved, the heat insulation layer and the vacuum cavity reduce heat radiation of seawater, the capacity of heating seawater by the oil inlet pipe is improved through heat radiation ribs, the energy efficiency is improved; and meanwhile, the desalter has the characteristics of energy saving, environment protection, simple structure and the like.

Description

technical field [0001] The invention relates to the technical field of seawater desalination and water treatment, in particular to a seawater desalinator with enhanced condensation effect and heating effect. Background technique [0002] The shortage of fresh water resources in the world has become a problem that people are increasingly concerned about. Seawater desalination, as an open source and incremental technology of water resources, has become an important way to solve the global water resource crisis. Seawater desalination is to use seawater desalination to produce fresh water. At present, the most used seawater desalination technologies in my country mainly include reverse osmosis and distillation. Among them, reverse osmosis is also called ultrafiltration. The semipermeable membrane through which the solute passes separates seawater from freshwater, but the cost of reverse osmosis is relatively high, and it has the disadvantages of large one-time investment and larg...

AI Technical Summary

Problems solved by technology

But at the same time, it also has certain defects. In the general tubular seawater desalination device, when the seawater is evaporating and condensing, the evaporated water vapor rises to the top of the external condensing pipe to condense. The top of the ordinary condensing pipe is a dome, which is different from The contact area of ​​the outside air is small, and the heat energy is dissipated slowly, which makes the seawater condense more slowly

And the heating tube used by the common tubular seawater desalination device is a common "U"-shaped tube, with one end of the oil inlet and one end of the oil outlet, through which the hot oil or water flows to heat the water in the water tank, but Ordinary "U"-shaped tubes have a small contact area with the seawater in the water tank, resulting in slow heating of the seawater. At the same time, the heated seawater exchanges heat with the outside through the tube wall, resulting in a large heat loss. These defects are to a certain extent Reduced desalination speed

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