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Method and system for improving heat exchange capacity of direct air cooling system

A technology of air-cooling system and heat exchange capacity, applied in lighting and heating equipment, steam/steam condensers, etc., can solve the problem of insufficient heat exchange capacity of air-cooling system, and achieve the effect of optimizing design temperature, reasonable construction investment, and increasing temperature

Active Publication Date: 2018-03-30
温高
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method and system for improving the heat exchange capacity of the direct air cooling system, and provides a new way to solve the problem of insufficient heat exchange capacity of the air cooling system in the prior art. The temperature difference between the steam inside the finned tube of the air cooling system and the external cooling air, thereby improving the heat transfer capacity of the direct air cooling system

Method used

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  • Method and system for improving heat exchange capacity of direct air cooling system
  • Method and system for improving heat exchange capacity of direct air cooling system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The direct air cooling system that has been put into operation is transformed to improve the heat exchange capacity of the original direct air cooling system, such as figure 1 In the process shown, the jet pump is installed at the proper position of the steam pipeline before the direct air cooling system. The high-temperature working fluid of the jet pump can be introduced from the thermal system of the unit or other heat sources. Considering the economy, the temperature of the high-temperature regulated steam is higher than that to be condensed The steam temperature is at least 200°C.

[0038] The high-temperature regulated steam (1) is injected as the working fluid through the nozzle of the jet pump (2), forming a vacuum in the mixing chamber of the jet pump (2), and the steam to be condensed (3) is sucked into the jet pump (2) through the steam pipeline (4) ) mixing chamber, the steam to be condensed (3) and the high-temperature regulated steam (1) are mixed in the m...

Embodiment 2

[0041] To build a new direct air-cooling system and improve the heat exchange capacity of the radiator of the direct air-cooling system, such as figure 1 In the process shown, the jet pump is installed at the proper position of the steam pipeline before the direct air cooling system. The high-temperature working fluid of the jet pump can be introduced from the thermal system of the unit or other heat sources. Considering the economy, the temperature of the high-temperature regulated steam is higher than that to be condensed The steam temperature is at least 200°C.

[0042] The high-temperature regulated steam (1) is injected as the working fluid through the nozzle of the jet pump (2), forming a vacuum in the mixing chamber of the jet pump (2), and the steam to be condensed (3) is sucked into the jet pump (2) through the steam pipeline (4) ) mixing chamber, the steam to be condensed (3) and the high-temperature regulated steam (1) are mixed in the mixing chamber of the jet pump...

Embodiment 3

[0045] The wet cooling system is transformed into a cooling system that can recover cooling water vapor, using figure 2 In the process shown, the circulating water that absorbs heat from the circulating water system enters the negative pressure evaporation chamber (10) from the circulating water inlet (8) to evaporate to generate steam to be condensed (3), and the unevaporated circulating water is cooled by the circulating water outlet ( 9) Return to the circulating water system; the high-temperature regulated steam (1) is injected as a working fluid through the nozzle of the jet pump (2), and a vacuum is formed in the mixing chamber of the jet pump (2), and the steam to be condensed (3) passes through the steam pipeline (4 ) is sucked into the mixing chamber of the jet pump (2), the steam to be condensed (3) and the high-temperature regulated steam (1) are mixed in the mixing chamber of the jet pump (2) to form mixed steam, and the mixed steam passes through the diffusion cha...

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Abstract

The invention discloses a method and system for improving the heat exchange capacity of a direct air cooling system. High-temperature adjusting steam is introduced to be used as work fluid of a spraypump and sprayed out by a spray nozzle, and vacuum is formed in a mixing chamber of the spray pump; steam to be condensed is sucked into the mixing chamber of the spray pump through a steam conveyingpipeline, the temperature of the high-temperature adjusting steam is higher than that of the steam to be condensed, the high-temperature adjusting steam and the steam to be condensed are mixed to formmixed steam, the mixed steam enters a finned tube radiator through a diffusion chamber and the steam conveying pipeline, the mixed steam and cooling air conduct surface type heat exchange, and then the mixed steam is condensed into condensate; the temperature of the mixed steam is higher than that of the steam to be condensed, by the adoption of the method, the temperature difference between thesteam in finned tubes of the direct air cooling system and external cooling air is increased, and the heat exchange capacity of the direct air cooling system is improved.

Description

technical field [0001] The invention belongs to the technical field of air cooling, and in particular relates to a method and a system for improving the heat exchange capacity of a radiator in a direct air cooling system. Background technique [0002] In today's world where fresh water resources are seriously scarce and the ecological environment is increasingly fragile, in order to achieve water saving, industrial production steam is widely used for cooling by air cooling system. Especially the direct air cooling system, due to its many advantages, has been widely used in industrial production exhaust steam condensation occasions such as thermal power plants in recent years. However, there are also some problems in the application of the air-cooling system that lead to the poor heat transfer capacity of the air-cooling system. For example, during the high temperature period in summer, the temperature difference between the steam inside the air-cooled radiator and the extern...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28B9/02
CPCF28B9/02
Inventor 温高
Owner 温高
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