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Solar self-sufficient fresh water and sea salt co-production system and operation method thereof

A solar energy, self-sufficient technology, applied in the field of solar energy and seawater desalination to extract salt, can solve the problems of waste of energy, high cost, single target, etc., and achieve the effect of reducing system operating cost, improving operating efficiency, and high economic efficiency.

Active Publication Date: 2021-12-07
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the cost of converting seawater into fresh water is basically very expensive, and the conversion process has a single goal. The traditional seawater desalination conversion method needs to consume a lot of electricity and fossil energy, and a lot of energy will be wasted in the conversion process, which cannot be fully realized. Use various energies
Under the energy strategy proposed in recent years, the single-target and costly seawater desalination technology is no longer enough to match the environment-friendly sustainable development strategy in the current economy

Method used

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  • Solar self-sufficient fresh water and sea salt co-production system and operation method thereof

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Effect test

Embodiment 1

[0026] see figure 1, a self-supporting freshwater sea-salt cogeneration system utilizing solar energy, which includes a first pressurized water pump 1, the first pressurized water pump 1 is connected to the first casing heat exchanger 2, and the inlet of the first pressurized water pump 1 is connected to the The raw seawater is connected by a pipeline 17; the right port of the first sleeve heat exchanger 2 is connected to the left port of the second sleeve heat exchanger 3 through the first pipeline 18; the second sleeve heat exchanger 3 The right port is connected to the left port of the third sleeve heat exchanger 4 through the second pipeline 19; the right port of the third sleeve heat exchanger 4 is connected to the medium-high temperature concentrated solar energy through the third pipeline 20 Heater 5, the medium-high temperature focused solar heater 5 is provided with a temperature sensor and a pressure sensor, which can monitor the internal temperature and pressure of ...

Embodiment 2

[0033] An operating method of a self-sufficient freshwater sea-salt cogeneration system utilizing solar energy:

[0034] When the system starts to operate, the method is that both the second shut-off valve 31 and the third shut-off valve 32 are in the closed state, the raw seawater is connected to the raw seawater inlet 17 and enters the first casing for heat exchange when the first pressurized water pump 1 is running Heat exchange between the refrigerant in the heat exchanger 2 and the inner casing pipeline, the refrigerant condenses and releases heat in the inner casing of the first sleeve heat exchanger 2, and the heated raw seawater enters the second casing through the first pipeline 18 The exhaust steam in the heat exchanger 3 and the inner casing pipe is exchanged again, and the raw seawater after the second temperature rise enters the third casing heat exchanger 4 and the high-temperature liquid state in the inner casing through the second pipeline 19 After heat exchang...

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Abstract

The invention provides a solar self-sufficient fresh water and sea salt co-production system and an operation method thereof, and relates to the field of solar energy utilization and seawater desalination salt production, wherein the solar self-sufficient fresh water and sea salt co-production system comprises a double-pipe heat exchanger, a medium-high temperature focusing type solar heater, a flash tank, a small steam turbine, a power generator, a pressure pump, a salting-out pool and a refrigerant circulation pipeline. The system is a self-sufficient system, electricity consumption required by operation of various pumps and compressors in the whole system can be met through solar energy and seawater electricity generation, and salt can be separated out while seawater is desalted. The solar self-sufficient fresh water and sea salt co-production system can realize multiple capacities of power generation, fresh water and salt separation, greatly improves the energy utilization rate in the seawater desalination process, greatly reduces the production cost, and has high economic operation efficiency.

Description

technical field [0001] The invention belongs to the field of salt extraction by utilizing solar energy and desalination of seawater, and in particular relates to a self-supporting freshwater sea-salt cogeneration system utilizing solar energy and an operating method thereof. Background technique [0002] With global warming and population growth, human demand for fresh water continues to rise. At present, the cost of converting seawater into fresh water is basically very expensive, and the conversion process has a single goal. The traditional seawater desalination conversion method needs to consume a lot of electricity and fossil energy, and a lot of energy will be wasted in the conversion process, which cannot be fully realized. Harness various energies. Under the energy strategy proposed in recent years, the single-target and expensive seawater desalination technology is no longer enough to match the environment-friendly sustainable development strategy in the current eco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/06C02F1/14F01D15/10F03G6/06C01D3/06C02F103/08
CPCC02F1/06C02F1/14F01D15/10F03G6/067C01D3/06C02F2103/08C02F2201/005Y02E10/46Y02A20/124Y02A20/142Y02A20/212Y02P20/133
Inventor 胡涛杨永清王岗余万
Owner CHINA THREE GORGES UNIV
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