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Compact distillation apparatus, and compact distillation system and application thereof

A distillation device and distillation system technology, applied in the field of distillation, can solve the problems of high energy consumption and high requirements for seawater pretreatment, and achieve the effects of reducing energy consumption, inhibiting scaling and corrosion problems, and widening the scope of application

Inactive Publication Date: 2020-01-17
SHANGHAI POWER EQUIP RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, the low-temperature multi-effect distillation method has the advantages of energy saving, low seawater pretreatment requirements, and high quality desalinated water; the reverse osmosis membrane method has the advantages of low investment and low energy consumption, but high seawater pretreatment requirements; multi-stage flash evaporation method It has the advantages of mature technology, reliable operation, and large output of the device, but the energy consumption is relatively high

Method used

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  • Compact distillation apparatus, and compact distillation system and application thereof
  • Compact distillation apparatus, and compact distillation system and application thereof
  • Compact distillation apparatus, and compact distillation system and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Level 5

[0076] The five-stage compact distillation units are fixed by flanges, and the first-stage compact distillation unit is connected to a heater to provide a corresponding heat source. The heat source is heated by the first-stage heat conduction sheet 15-1 in the first-stage heating chamber 9-1 of the first-stage compact distillation device, flows from the first-stage seawater inlet 4-1 into the first-stage seawater diversion pipe, and then evenly flows into the first-stage heating chamber 9- 1 seawater, the water vapor formed is output through the 1st-stage steam outlet 14-1 on the 1st-stage steam partition 13-1 and conducts heat in the 2nd-stage heating chamber 9-2 of the 2nd-stage compact distillation device Sheet 15-2 condenses on the first-stage steam separator 13-1 after heat transfer, and flows out from the first-stage clean water outlet 3-1 after gathering. The concentrated sewage deposited after heating in the first-level heating chamber 9-1 is evenly c...

Embodiment 2

[0080] level 10

[0081] The 10-stage compact distillation unit is fixed by welding, and the first-stage compact distillation unit is connected to a heater to provide a corresponding heat source. The heat source is heated by the first-level heat conduction sheet 15-1 in the first-level heating chamber 9-1 of the first-level compact distillation device, flows from the first-level sewage inlet 4-1 into the first-level sewage diversion pipe, and then evenly flows into the first-level heating chamber 9- 1 sewage, the water vapor formed is output through the first-stage steam outlet 14-1 on the first-stage steam partition 13-1 and conducts heat in the second-stage heating chamber 9-2 of the second-stage compact distillation device Sheet 15-2 condenses on the first-stage steam separator 13-1 after heat transfer, and flows out from the first-stage clean water outlet 3-1 after gathering. The concentrated sewage deposited after heating in the first-level heating chamber 9-1 is evenly ...

Embodiment 3

[0085] level 20

[0086] The 20-stage compact distillation units are fixed by welding, and the first-stage compact distillation units are connected to heaters to provide corresponding heat sources. The heat source is heated by the first-level heat conduction sheet 15-1 in the first-level heating chamber 9-1 of the first-level compact distillation device, flows from the first-level river water inlet 4-1 into the first-level river water diversion pipe, and then evenly flows into the first-level heating chamber 9- 1 river water, the water vapor formed is exported through the 1st-stage steam outlet 14-1 on the 1st-stage steam partition 13-1 and conducted in the 2nd-stage heat conduction in the 2nd-stage heating chamber 9-2 of the 2nd-stage compact distillation device Sheet 15-2 condenses on the first-stage steam separator 13-1 after heat transfer, and flows out from the first-stage clean water outlet 3-1 after gathering. The concentrated sewage deposited after heating in the firs...

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Abstract

The invention provides a compact distillation device, and a compact distillation system and application thereof. According to the compact distillation device, a raw material water inlet is formed in the upper part of a heating chamber and used for allowing raw material water to enter the heating chamber for heating evaporation; a concentrated sewage outlet is formed in the bottom of the side wallof the heating chamber, and sewage formed by concentration after heating evaporation of the heating chamber is discharged from the concentrated sewage outlet; a distillation partition plate with a steam outlet is arranged at the top of the heating chamber and located above the raw material water inlet; water vapor heated and evaporated by the heating chamber enters the upper layer of the heating chamber through the steam outlet and forms condensate water on the distillation partition plate; and the condensate water is discharged through a purified water outlet formed in the upper portion of the distillation partition plate. The device and the system are simple in structure, easy to operate and low in energy consumption; by adopting the design scheme that the raw material water directly enters a high-temperature section and temperature difference of each stage of the compact distillation device is controlled to be small, the utilization efficiency of the system is improved; and additives such as a scale inhibitor do not need to be added, so the problems of scaling and corrosion are solved, and the purity of water can be effectively retained.

Description

technical field [0001] The invention relates to the technical field of distillation, in particular to a multi-effect distillation technology. Background technique [0002] Water is the foundation of human survival. Currently, global fresh water resources are being depleted, which has become the biggest threat to human survival. China's per capita water resources are less than 1 / 3 of the world's, and China is listed by the United Nations as one of the 13 water-poor countries. According to a survey, more than 420 of the 661 cities in the country are short of water, and the water shortage is about 7 billion cubic meters. The vast ocean accounts for about 71% of the earth's surface area, and it is a huge treasure house with huge development potential. The utilization of seawater water resources and the utilization of seawater chemical resources have very broad prospects. [0003] Seawater is an inexhaustible resource, with a total volume of about 13.7 billion cubic kilometers...

Claims

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Application Information

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IPC IPC(8): C02F1/04C02F103/08
CPCC02F1/04C02F1/043C02F2103/08C02F2201/002
Inventor 黄志强陈运良郑开云张天博蒋励叶晶
Owner SHANGHAI POWER EQUIP RES INST
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