High-temperature sewage self-desalting multi-effect distillation equipment

A multi-effect distillation and high-temperature sewage technology, which is applied in the field of distillation, can solve the problems of increasing sewage discharge and achieve the effects of low equipment cost, equipment cost reduction, and low depreciation cost

Pending Publication Date: 2021-06-15
高峰 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This produces more wastewater than the original amount of sewage, increasing the amount of sewage discharged

Method used

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  • High-temperature sewage self-desalting multi-effect distillation equipment
  • High-temperature sewage self-desalting multi-effect distillation equipment
  • High-temperature sewage self-desalting multi-effect distillation equipment

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Embodiment Construction

[0035] The present invention will be described in detail below with reference to the accompanying drawings and examples. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, those skilled in the art will recognize that modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For example, features illustrated or described as part of one embodiment can be used on another embodiment to yield a still further embodiment. Therefore, it is intended that the present invention includes such modifications and variations as come within the scope of the appended claims and their equivalents.

[0036]In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", " The orientations or positional relationships indicated by "top", "bottom", etc. are based on the orientat...

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Abstract

The invention provides high-temperature sewage self-desalting multi-effect distillation equipment which comprises a flash tank, a multi-effect evaporator and a condenser, and material water distribution devices and a heat exchange tube bundle are arranged in the multi-effect evaporator; the multi-effect evaporator is formed by connecting a plurality of evaporators in series, the plurality of evaporators are sequentially called as a first-effect evaporator, a second-effect evaporator, and the like till a last-effect evaporator from front to back, the flash tank is arranged at the upstream of the multi-effect evaporator, and one material water distribution device is arranged at the inner top of each evaporator; and steam generated by flash evaporation of high-temperature sewage in the flash tank is used as first-effect heating steam, residual sewage in the flash tank is used as material water, a heat source of the high-temperature sewage self-desalting multi-effect distillation equipment adopts high-temperature sewage discharge wastewater, a low-temperature steam heat source is obtained through low-temperature flash evaporation, heat of the sewage is utilized to the maximum extent, and therefore, the heat value of the maximum cost of desalting water production is basically zero.

Description

technical field [0001] The invention relates to the technical field of distillation, in particular to a multi-effect distillation equipment for self-desalination of high-temperature sewage. Background technique [0002] For boilers below subcritical in thermal power plants, in order to ensure water quality safety, regular and continuous sewage discharges are generally performed on the water side of the boiler. The general process for these high-temperature sewage is to mix it with some cold water to form low-temperature water and then send it back to the chemical water workshop. This produces more waste water than the original amount of sewage, increasing the amount of sewage discharge. After the use of this technology, the high temperature of the sewage itself can be used as a heat source to desalinize the sewage, so that most of the sewage can be turned into high-quality distilled water, and at the same time, the amount of sewage is greatly reduced. This part of distilled...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/04C02F1/06C02F1/16C02F101/10
CPCC02F1/06C02F1/048C02F1/16C02F2101/10Y02A20/124
Inventor 高峰李丁陈焱
Owner 高峰
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