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A heat pump evaporation system for recycling flue gas purification by-products

A technology of flue gas purification and heat pump evaporation, which is applied in the direction of ammonium sulfate, chemical instruments and methods, water/sewage multi-stage treatment, etc., can solve the problem that the secondary steam cannot be used directly, and achieve light weight, small vibration, small size effect

Active Publication Date: 2016-06-08
CHENGDU HUAXITANG INVESTMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The secondary steam of a certain effect of the patented evaporator cannot be directly used as a heat source for this effect, but can only be used as a heat source for a secondary effect or several effects.

Method used

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  • A heat pump evaporation system for recycling flue gas purification by-products
  • A heat pump evaporation system for recycling flue gas purification by-products
  • A heat pump evaporation system for recycling flue gas purification by-products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A heat pump evaporation system for recycling flue gas purification by-products, characterized in that it includes a crystallization reactor 1, a solid-liquid separator-2, a feed pump 3, a preheater 4, a heat exchanger-5, and a crystallization separator 6. Compressor 7; the outlet of the crystallization reactor 1 is connected to the solid-liquid separator-2, and the liquid outlet of the solid-liquid separator-2 is connected to the feed pump 3, and the feed pump 3 is connected to the preheater 4 , the liquid outlet of the preheater 4 is connected to the heat exchanger one 5, the heat exchanger one 5 is connected to the liquid inlet of the crystallization separator 6 through a forced circulation pump, and the exhaust port of the crystallization separator 6 is connected to the compressor through a steam pipeline The air inlet of 7 is connected, and the air outlet of compressor 7 is connected with the air inlet of heat exchanger one 5 shells.

Embodiment 2

[0044] This embodiment is basically the same as Embodiment 1, on this basis:

[0045] The compressor 7 is a centrifugal compressor.

Embodiment 3

[0047] This embodiment is basically the same as Embodiment 1, on this basis:

[0048] The compressor 7 is a centrifugal compressor.

[0049] The centrifugal compressor is three stages connected in series, and the motor of the compressor is equipped with 160Kw.

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Abstract

The invention provides a heat pump evaporation system for recycling flue gas purification byproducts. The system comprises a crystallizing reactor, a solid-liquid separator I, a feeding pump, a preheater, a heat exchanger I, a crystallizing separator and a compressor, wherein the discharging hole of the crystallizing reactor is connected with the solid-liquid separator I; the liquid outlet of the solid-liquid separator I is connected with the feeding pump; the feeding pump is connected with the preheater; the liquid outlet of the preheater is connected with the heat exchanger I; the heat exchanger I is connected with the liquid inlet of the crystallizing separator through a forced circulation pump; the gas outlet of the crystallizing separator is connected with the gas inlet of the compressor through a steam pipeline; the gas outlet of the compressor is connected with the gas inlet of a housing layer of the heat exchanger I.

Description

technical field [0001] The invention relates to the technical field of flue gas purification, in particular to a heat pump evaporation system for recycling flue gas purification by-products. Background technique [0002] In recent years, as air pollution has become more and more serious, people have put forward higher requirements for the treatment of flue gas, especially coal-fired flue gas; In accordance with the "Emission Standards for Substances" (GB13223-2011), new emission limits for soot, sulfur dioxide, and nitrogen oxides in flue gas have been put forward. At present, the effective methods of flue gas desulfurization are wet flue gas desulfurization such as ammonia method and sodium method. The above desulfurization methods all produce a certain concentration of waste liquid containing sulfate and nitrate. It has the characteristics of high salt content and partial acidity, and the effluent quality is difficult to meet the discharge standard when treated by ordina...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/10C01C1/24
CPCY02P20/129
Inventor 汪然陈洪会汤茂辉黄炳光郎治
Owner CHENGDU HUAXITANG INVESTMENT