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An indirect cooling system shutter control device and control method thereof

A technology of control device and control method, which is applied in the direction of steam/steam condenser, heat exchange equipment, engine components, etc., and can solve the problem of cooling tower inlet water temperature disturbance, circulating water flow disturbance and adjustment response between blinds without considering unit load lag time Slow, inaccurate adjustment and other problems, to achieve the effect of fast adjustment response, accurate adjustment, and reduce adjustment lag time

Active Publication Date: 2021-10-01
CHINA DATANG CORP SCI & TECH RES INST CO LTD EAST CHINA BRANCH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the adjustment means of the shutters in the prior art does not take into account the lag time of the influence of the load of the unit on the outlet temperature of the air cooling tower, the influence of the water temperature disturbance at the inlet of the intercooling tower, and the circulation The influence of water flow disturbance leads to slow adjustment response and inaccurate adjustment

Method used

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  • An indirect cooling system shutter control device and control method thereof
  • An indirect cooling system shutter control device and control method thereof

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Embodiment Construction

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are part of the present invention Examples, not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0018] Such as figure 1 As shown, a shutter control device for an intercooling system, including a steam turbine 1, a condenser 2, a circulating water pump 3, an air cooling tower 4, a PID regulator 6, a condensate pump 5, a feedforward loop (not shown in the figure), and a first addition 7, selector 8 and second adder 9.

[0019] The feed-forward loop is used to collect the ou...

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Abstract

The invention discloses a louver control device for an intercooling system and a control method thereof. The device includes a steam turbine, a condenser, a circulating water pump, an air cooling tower, a PID regulator, a condensate water pump, a feedforward loop, a first adder, a selector and The second adder, the feedforward loop is connected to the input end of the selector through the first adder, the output end of the selector is connected to the input end of the second adder, and the outlet temperature value of the air cooling tower is sent to the input end of the PID regulator , the output end of the PID regulator is connected with the input end of the second adder, and the output end of the second adder is connected with the temperature adjustment end of the air-cooling tower; The outlet communicates with the inlet of the air-cooling tower through a circulating water pump and a pipeline; the invention has the advantages of fast response to shutter adjustment and accurate adjustment.

Description

technical field [0001] The invention relates to the field of thermal power generation, and more specifically relates to a shutter control device and a control method for an intercooling system. Background technique [0002] The indirect air cooling system is to use air to indirectly cool the exhaust steam of the steam turbine through the intermediate circulating cooling water. The intercooling tower is an important equipment in the indirect air cooling system to realize the cooling of the intermediate circulating water. That is, the temperature of the circulating water rises after completing the cooling task of the exhaust steam of the steam turbine, and enters the heat exchange pipe network in the air cooling tower to realize its own cooling. The heat exchange pipe network in the air cooling tower is composed of several parallel cooling sectors, and each cooling sector changes the amount of air flowing through the heat exchange pipe network through the adjustment of the shu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F27/00F28B11/00F01D25/12
CPCF01D25/12F28B11/00
Inventor 郭宝庄义飞章佳威甄诚李建钟王飞
Owner CHINA DATANG CORP SCI & TECH RES INST CO LTD EAST CHINA BRANCH
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