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Icing and reverse osmosis seawater desalination equipment and control method thereof

A reverse osmosis method, reverse osmosis technology, applied in chemical instruments and methods, seawater treatment, lighting and heating equipment, etc., can solve the problems of high cost of anti-corrosion pipelines, corrosion of cement pipes and iron pipes, etc.

Inactive Publication Date: 2018-08-10
张英华
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The distance from Tianjin to Beijing is more than 100 kilometers, and the reverse osmosis fresh water is acidic, which is corrosive to cement pipes and iron pipes; special pipes are required to transport reverse osmosis fresh water, and the cost of using anti-corrosion pipes is very high

Method used

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  • Icing and reverse osmosis seawater desalination equipment and control method thereof
  • Icing and reverse osmosis seawater desalination equipment and control method thereof
  • Icing and reverse osmosis seawater desalination equipment and control method thereof

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Embodiment Construction

[0009] figure 1 , figure 2 and image 3 Shown, a seawater desalination equipment of freezing method and reverse osmosis method. Use double-layer pipes to transport new seawater and discharge concentrated seawater. The new seawater pump extracts new seawater that has been filtered by sand from the seaside manhole, and then transports the clean new seawater from the interlayer between the central stainless steel pipe and the outer plastic pipe of the double-layer pipe. In the industrial waste heat heater of the reverse osmosis seawater desalination plant, the new seawater is heated to 20°C, and then enters the reverse osmosis seawater desalination unit. The concentrated seawater from the reverse osmosis seawater desalination device is discharged to the sea from the central stainless steel pipe of the double-layer pipe. The seawater desalination process of the freezing method is as follows: when the cold wave hits in winter, the temperature in the Bohai Sea is between -10°C a...

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Abstract

The invention discloses icing and reverse osmosis seawater desalination equipment and a control method thereof. A double-layer pipe is used for conveying new seawater and discharging concentrated seawater, and the filtered new seawater is heated up to 20 DEG C and is then placed in a reverse osmosis seawater desalination device for producing desalinated water; a seawater icing device consists of asteam boiler, a water vapor storage tank, a water vapor organic silicon rubber pipeline, a water vapor electromagnetic valve, a stainless steel hollow mesh and a sinking and floating device; the stainless steel hollow mesh is formed by sequentially splicing a stainless steel wind shield, a stainless steel heating square tube and a stainless steel floating tube with two closed ends from top to bottom. In winter, the seawater freezes in the stainless steel hollow mesh; water vapor enters the stainless steel heating square tube and then melts the edges of ice cubes; floating ice are crushed andthen transported to the shore by a ship, and then sent to a seawater ice funnel by means of a belt conveyor or a chain conveyor. A desalination water pump is inserted into the seawater ice funnel by means of a desalination tube, desalinated water is mixed with the crushed seawater ice, and the mixture is then sent to the waterworks through a chemical water pipe by means of a rodless screw extrusion conveying pump.

Description

Technical field: [0001] The invention relates to seawater desalination equipment and a control method of freezing method and reverse osmosis method. Background technique: [0002] At present, the waste heat power generation device we have developed can directly use waste gas and waste liquid above 80°C to generate electricity. Therefore, the multi-effect flash seawater desalination method using steam turbine engine with waste water steam at 200°C and the multistage flash seawater desalination method using industrial waste heat to heat seawater to 70°C will be eliminated. Only reverse osmosis desalination method remains for large-scale seawater desalination. Reverse osmosis seawater desalination requires the temperature of seawater to be higher than 20°C, while the lowest temperature of seawater in the Bohai Sea in winter is 0°C. The viscosity of seawater at 0°C is too high to be suitable for seawater desalination by reverse osmosis. The mid-line south-to-north water diver...

Claims

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Application Information

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IPC IPC(8): C02F9/04F25C1/02C02F103/08
CPCC02F1/001C02F1/283C02F1/441C02F1/50C02F9/00C02F2103/08F25C1/02Y02A20/131
Inventor 张英华
Owner 张英华
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