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System capable of improving cooling effect of cooling tower by means of reducing moisture content of air

A cooling effect, cooling tower technology, applied in the direction of air quality improvement, water spray cooler, chemical separation, etc., can solve the problem of cooling tower performance decline, etc., to achieve the effect of improving efficiency, reducing inlet water temperature, and reducing adverse effects

Inactive Publication Date: 2013-05-01
SOUTHEAST UNIV
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Problems solved by technology

In addition, due to the difference between the design condition of the cooling tower and the actual operating condition, under certain weather conditions in a year, the performance of the cooling tower may decline, so that the power plant has to operate at reduced load

Method used

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  • System capable of improving cooling effect of cooling tower by means of reducing moisture content of air

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Embodiment Construction

[0020] The present invention will be described below with reference to the accompanying drawings.

[0021] Using solution dehumidification to recover CO by chemical method 2 The energy capture system is based on solution dehumidification technology and chemical CO 2 Above the capture technology, commonly used solution dehumidifiers include lithium bromide solution, lithium chloride solution, and calcium chloride solution; commonly used for capturing CO 2 The best solutions are MEA solution, MDEA solution and so on.

[0022] In the cooling water subsystem of the power plant, the air outlet of the solution dehumidifier is connected to the air inlet of the cooling tower after being cooled to room temperature through the air-water cooler, and the dehumidified air is sent into the cooling tower through the pipeline.

[0023] The invention provides a system for improving the cooling effect of a cooling tower, which includes a power plant cooling water subsystem, CO 2 Capture subs...

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Abstract

The invention relates to a system capable of improving a cooling effect of a cooling tower by means of reducing moisture content of air, which is characterized by comprising a cooling water subsystem of a power plant, a CO2 capturing subsystem and a liquor dehumidifying subsystem. The cooling water subsystem of the power plant and the CO2 capturing subsystem are integrated by the aid of the liquor dehumidifying subsystem, the cooling water subsystem of the power plant consists of the cooling tower (18), the CO2 capturing subsystem comprises an absorption tower (1), a rich liquor pump (7), a barren liquor heat exchanger (8), a reboiler (9), a barren liquor cooling heat exchanger (19) and a regeneration gas water cooler (20), and the liquor dehumidifying subsystem consists of a dehumidifierinlet fan (10). By the aid of the system, vacuum degree of a condenser is increased, power generation efficiency is improved, coal consumption is reduced, and influence of the CO2 capturing subsystemto efficiency of the power plant is reduced.

Description

technical field [0001] The invention relates to a chemical method for recovering CO by using solution dehumidification 2 A system that captures the energy of the device to improve the cooling effect of the cooling tower, which belongs to CO 2 Capture technology energy recovery and energy saving field. Background technique [0002] thermal power plants as CO 2 The largest source of emissions, controlling CO in thermal power plants 2 Emissions are an important part of the global effort to reduce emissions. Existing CO 2 The high energy consumption of the capture device leads to high emission reduction costs, which is the main obstacle for the large-scale application of CCS (carbon dioxide capture and storage) technology so far. [0003] Currently applied to CO 2 The capture is mainly the chemical absorption method, and the CO is absorbed in the absorption tower through the chemical absorbent 2 , and then the absorbed rich liquid returns to the regeneration tower for hea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F25/10B01D53/26B01D53/78B01D53/62B01D53/96
CPCY02C10/04Y02A50/20Y02C20/40
Inventor 李舒宏丁一张小松李阳冯义康程德园
Owner SOUTHEAST UNIV
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