Air cooled condenser unit with optimized operation

An air-cooled condenser and operation optimization technology, which is applied to steam/steam condensers, lighting and heating equipment, etc., can solve problems such as lag adjustment, fluctuations in operating parameters, and large power consumption of fans, so as to achieve early response and avoid lag performance and improve control accuracy

Inactive Publication Date: 2017-06-16
LAIR LIQUIDE SA POUR LETUDE & LEXPLOITATION DES PROCEDES GEORGES CLAUDE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the fact that the traditional PID controller is a hysteresis regulation in essence, there are many deficiencies in the control quality of the PID control system.
[0006] Because the traditional coping strategies or control methods are too rough, it is easy to cause excessiv...

Method used

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  • Air cooled condenser unit with optimized operation
  • Air cooled condenser unit with optimized operation
  • Air cooled condenser unit with optimized operation

Examples

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Embodiment Construction

[0025] figure 1 An exemplary steam-water system diagram is shown, which includes a boiler 10 , a steam turbine 14 , a generator 18 and an air-cooled condenser unit 21 . The boiler burns to heat water to form water vapor. The water vapor flows into the steam turbine 14 through the pipeline 12. The hot water vapor expands in the steam turbine to drive the turbine to rotate. The steam turbine drives the generator 18 to generate electricity through the output shaft 16. The steam discharged from the steam turbine 14 enters the direct air-cooled condenser unit 21 through the pipeline 20 . The air-cooled condenser unit 21 mainly includes an air-cooled condenser 22 . The air-cooled condenser 22 includes a heat exchange tube bundle 26 and a fan device 32 . The heat exchange tube bundle 26 receives the turbine exhaust steam from the pipeline 20, and collects all the exhaust steam in the common upper header 24, and the tubes forming the heat exchange tube bundle are respectively arrang...

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Abstract

The invention relates to an air-cooled condenser unit with optimized operation, comprising: an air-cooled condenser, which has a heat exchange tube bundle and fan equipment, the heat exchange tube bundle is configured to receive exhaust steam from a steam turbine, and the fan equipment is matched with the heat exchange tube bundle arranged to cool the exhaust steam flowing in the heat exchange tube bank into condensed water; a data measurement and acquisition system configured to measure and acquire at least part of the controlled variables and disturbance variables of the air-cooled condenser; a multivariable predictive controller, It is based on pre-set modular units, and automatically controls the control variables of the fan equipment according to the values ​​of at least part of the controlled variables and disturbance variables from the data measurement and acquisition system to optimize the performance of the air-cooled condenser while preventing the back pressure of the steam turbine from being lower than the set value The range of pressure protection limits and prevent the condensate temperature from falling below the predetermined limit of condensate temperature.

Description

technical field [0001] The invention relates to an air-cooled condenser unit with optimized operation, and more particularly, to an air-cooled condenser unit with optimized operation based on multivariable predictive control. Background technique [0002] In plant installations, steam in a steam turbine undergoes an expansion process that converts heat energy into mechanical energy that can be used, for example, to generate electricity in a generator or to drive a compressor. The condenser used in the steam turbine is a heat exchange device that turns the steam discharged after driving the steam turbine into condensed water. The condensed water discharged from the condenser is sent to the boiler through the condensed water pump through the feed water heater, feed water pump, etc., and is heated by the boiler to form steam and sent to the steam turbine, so as to ensure the continuous progress of the entire thermal cycle. [0003] The unit that directly uses air as the coolin...

Claims

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Application Information

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IPC IPC(8): F28B1/06F28B11/00
CPCF28B1/06F28B11/00
Inventor 高飞马瑞诺瞿立李建伟
Owner LAIR LIQUIDE SA POUR LETUDE & LEXPLOITATION DES PROCEDES GEORGES CLAUDE
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