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Power generation system capable of recovering waste heat of rectifying tower air cooler

A waste heat recovery and power generation system technology, which is applied in the direction of machines/engines, steam generation, lighting and heating equipment, etc., can solve the problems of unreasonable and effective use of heat resources and high energy consumption of aromatic hydrocarbon complexes, etc., and achieve improvement Work efficiency, ensure flexibility, improve the effect of heat exchange efficiency

Active Publication Date: 2015-03-11
DALIAN FUJIA DAHUA GASOLINEEUM CHEM
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AI Technical Summary

Problems solved by technology

[0002] The aromatics complex is a high-energy-consuming device. While using a large amount of fuel gas and steam to provide heat sources for the rectification tower, the top of the rectification tower releases the heat of the system to the air through an air cooler, so that the low-temperature heat resources at the top of the tower Not being rationally and effectively utilized, resulting in high energy consumption of the aromatics complex

Method used

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  • Power generation system capable of recovering waste heat of rectifying tower air cooler
  • Power generation system capable of recovering waste heat of rectifying tower air cooler

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Embodiment Construction

[0011] Rectification tower air cooler waste heat recovery power generation system, including rectification tower 1, material air cooler 4 and reflux tank 6, rectification tower 1 is connected to material air cooler 4 through first pipeline 12, material air cooler 4 is connected through second pipeline 13 The reflux tank 6 also includes a heat exchanger 2, a steam drum 3, a flash evaporator 26, a generator set 8 and a hot water circulation pump 7; the rectification tower 1 is connected to the heat exchanger 2 through a third pipeline 14, and the heat exchanger 2 passes through Four pipelines 15 are connected to the return tank 6; the heat exchanger 1 is also connected to the steam drum 3 through pipelines, and the steam drum 3 is connected to the flasher 26, and the flasher 26 is connected to the generator set 8 through the fifth pipeline 16, and the generator set 8 is connected through the sixth pipeline 17 The hot water circulation pump 7, the hot water circulation pump 7 is c...

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Abstract

The invention provides a power generation system capable of recovering the waste heat of a rectifying tower air cooler and belongs to the field of waste heat power generation. Tower top oil gas rectified by a rectifying tower goes into a heat exchanger for heat exchange, and returns to a return tank after being cooled; hot water after heat exchange in the heat exchanger is fed into a steam pocket and flashed into steam by a flash evaporator, the steam is conveyed to a generator set via a pipeline to apply work so as to generate power, and then the cooled steam is returned to a hot water circulating pump via a pipeline and goes into the heat exchanger for circulation. Affluent low-temperature heat at the tower top is utilized; the tower top oil gas goes into the heat exchanger to exchange heat with hot water and returns to the return tank after being cooled, and the outage of the material air cooler is realized. The heated steam drives the generator set to apply work to generate power, and the utilization of the low-temperature heat is realized at last.

Description

technical field [0001] The invention relates to a rectification tower air cooler waste heat recovery power generation system, which belongs to the field of waste heat power generation. Background technique [0002] The aromatics complex is a high-energy-consuming device. While using a large amount of fuel gas and steam to provide heat sources for the rectification tower, the top of the rectification tower releases the heat of the system to the air through an air cooler, so that the low-temperature heat resources at the top of the tower It has not been used reasonably and effectively, resulting in high energy consumption of the aromatics complex. Due to the maturity of low-temperature steam power generation technology and the continuous improvement of equipment manufacturing level in recent years, a foundation has been created for the recovery and utilization of low-temperature heat at the top of the distillation tower of the aromatics complex. Through the transformation of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B3/04F01K27/02F01K23/10
Inventor 张东石宁兆林
Owner DALIAN FUJIA DAHUA GASOLINEEUM CHEM
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