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Self-sufficient water supply disc type solar sea water desalting device

A solar and disc technology, applied in the field of solar seawater desalination, can solve the problems of high investment and large energy consumption in seawater desalination technology, and achieve the effects of low heat source temperature, fast start-up speed and simple operation.

Active Publication Date: 2012-09-19
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Traditional seawater desalination technology requires high investment and high energy consumption. According to statistics, a device that produces 13 million tons of desalinated water per day needs to consume 130 million tons of crude oil every year

Method used

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  • Self-sufficient water supply disc type solar sea water desalting device
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  • Self-sufficient water supply disc type solar sea water desalting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030]The size of the inner lining of the still is 1 m (length) × 1 m (width) × 0.3 m (height), the distance between the foam board and the walls around the inner lining of the still is 10 mm, and 30 holes are evenly opened on the heat-absorbing plate A small hole with a diameter of 1 mm adjusts the depth of seawater in the distillation chamber to 10 cm, adjusts the thickness of the seawater layer above the heat absorbing plate to 5 mm, adjusts the depth of seawater in the distillation chamber to 80 mm, and selectively absorbs the coating on the heat absorbing plate. The absorptivity of the layer is 0.9, and the emissivity is 0.3. The reflectivity of the reflective paint on the walls around the still lining is 0.8. Five small holes with a diameter of 2.5 mm are evenly seen on the inner lining of the still. The pore size is 15 mm, and the salinity of the seawater is 3.5%. A large number of experimental studies were carried out under sunny conditions in East China in late April. ...

Embodiment 2

[0032] The size of the inner lining of the still is 1 m (length) × 1 m (width) × 0.3 m (height), the distance between the foam board and the walls around the inner lining of the still is 10 mm, and 30 holes are evenly opened on the heat-absorbing plate A small hole with a diameter of 1 mm adjusts the depth of seawater in the distillation chamber to 10 cm, adjusts the thickness of the seawater layer above the heat absorbing plate to 5 mm, adjusts the depth of seawater in the distillation chamber to 80 mm, and selectively absorbs the coating on the heat absorbing plate. The absorptivity of the layer is 0.9, and the emissivity is 0.3. The reflectivity of the reflective paint on the walls around the still lining is 0.8. Nine small holes with a diameter of 2.5 mm are evenly seen on the inner lining surface of the still. The pore diameter is 15 mm, and the salinity of seawater is 3.5%. A large number of experimental studies were carried out under sunny conditions in East China in la...

Embodiment 3

[0034] The size of the inner lining of the still is 1 m (length) × 1 m (width) × 0.3 m (height), the distance between the foam board and the walls around the inner lining of the still is 10 mm, and 30 holes are evenly opened on the heat-absorbing plate A small hole with a diameter of 1 mm adjusts the depth of seawater in the distillation chamber to 15 cm, adjusts the thickness of the seawater layer above the heat absorbing plate to 5 mm, adjusts the depth of seawater in the distillation chamber to 80 mm, and selectively absorbs the coating on the heat absorbing plate. The absorptivity of the layer is 0.9, and the emissivity is 0.3. The reflectivity of the reflective paint on the walls around the still lining is 0.8. Nine small holes with a diameter of 2.5 mm are evenly seen on the inner lining surface of the still. The pore diameter is 15 mm, and the salinity of seawater is 3.5%. A large number of experimental studies were carried out under sunny conditions in East China in la...

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Abstract

The invention discloses a self-sufficient water supply disc type solar sea water desalting device. A device body consists of a transparent lighting cover, a pad plate, a distiller case, a fresh water collecting bottle, a protection belt, a convex floating plate, a water supplementing pipe, a heat absorption plate, a foam plate, an insulation material and a distiller inner liner. After solar radiation is absorbed by an absorption plate through passing through the transparent lighting cover, the solar radiation is used for heating thin sea water layer at the upper side so that the sea water is evaporated through being heated, and the generated vapor is condensed into fresh water on a transparent glass surface. When the sea water is evaporated through being heated, outside sea water can be supplemented into a distillation chamber through the water supplementing pipe and water supplementing holes so that the water level constancy in the distillation chamber is ensured, the sea water in the distillation chamber realizes the salinity diffusion towards the outside sea water through the water supplementing pipe and the water supplementing holes under the concentration difference effect, and the self salinity is reduced. The device provided by the invention has the advantages that no any conventional energy sources are needed, the structure of the device is simple, the artificial watching and management is not needed, and the device is particularly suitable for being used on island sea and navigation boats.

Description

technical field [0001] The invention belongs to the technical field of solar seawater desalination, and in particular relates to a self-sufficient water replenishment disc solar seawater desalination device. Background technique [0002] The ocean covers 71% of the earth's surface area, with seawater reserves of about 1.37 billion cubic kilometers, accounting for 95% of the world's total water; terrestrial freshwater reserves of about 35 million cubic kilometers, accounting for 2.53% of the global water reserves. The fresh water used only accounts for 0.266% of the fresh water reserves, which is less than 7 / 100,000 of the earth's total water storage. my country has a long coastline, and many islands, coastal areas and inland brackish water areas have serious fresh water shortages. Therefore, the development of seawater desalination technology has far-reaching strategic significance to alleviate the current shortage of freshwater resources and the prominent contradiction bet...

Claims

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Application Information

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IPC IPC(8): C02F1/14C02F103/08
CPCY02A20/124Y02A20/142Y02A20/212
Inventor 肖刚倪明江骆仲泱高翔岑可法方梦祥周劲松施正伦程乐鸣王勤辉王树荣余春江
Owner ZHEJIANG UNIV
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