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Control method and device of adjustable guide vane of mechanical equipment, and mechanical equipment

A technology of mechanical equipment and control method, which is applied in the direction of mechanical equipment, gas turbine device, pump control, etc., can solve the problem of not being able to optimize the cycle efficiency, and achieve the effect of reducing the intake air flow

Active Publication Date: 2020-07-28
CHINA SHENHUA ENERGY CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method still cannot optimize the cycle efficiency of the unit.

Method used

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  • Control method and device of adjustable guide vane of mechanical equipment, and mechanical equipment
  • Control method and device of adjustable guide vane of mechanical equipment, and mechanical equipment
  • Control method and device of adjustable guide vane of mechanical equipment, and mechanical equipment

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Embodiment Construction

[0032] The specific implementation manners of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation manners described here are only used to illustrate and explain the embodiments of the present invention, and are not intended to limit the embodiments of the present invention.

[0033] figure 1 It is a flow chart of the control method of the adjustable guide vane of the mechanical equipment provided by an embodiment of the present invention. Such as figure 1 As shown, the adjustable guide vane is used to control the intake flow of the mechanical equipment, and the method includes:

[0034] Step S11, detecting the load of the mechanical equipment in real time;

[0035] Step S12, judging the amount of change in the load of the mechanical equipment within a predetermined time according to the detected load of the mechanical equipment; and

[0036] Step S...

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Abstract

The embodiment of the invention provides a method and device for controlling adjustable guide vanes of mechanical equipment and the mechanical equipment, and belongs to the field of thermal power generation. The adjustable guide vanes are used for controlling intake air flow of the mechanical equipment. The method comprises the following steps of detecting the load of the mechanical equipment in real time; judging the change amount of the load of the mechanical equipment within a predetermined period of time according to the detected load of the mechanical equipment; and controlling the opening degree of the adjustable guide vanes according to the current load of the mechanical equipment and the change amount of the load of the mechanical equipment. According to the control method and device of the adjustable guide vanes of the mechanical equipment and the mechanical equipment, the circulation efficiency of the mechanical equipment can be improved, so that the mechanical equipment is more energy-saving.

Description

technical field [0001] The invention relates to thermal power generation, in particular to a control method, device and mechanical equipment for adjustable guide vanes of mechanical equipment. Background technique [0002] The gas-steam combined cycle unit operates under the design conditions, which can enable the unit to obtain higher thermal efficiency, but in fact, because the grid load changes with the change of external demand, or the gas turbine is limited by the amount of natural gas, etc., the unit cannot Keep running at base load for a long time. In order to improve the thermal efficiency of the combined cycle under partial load conditions of the unit, the adjustable guide vane at the compressor inlet should be gradually turned down as the load decreases to reduce the air flow into the compressor, and try to keep the initial gas temperature T1T of the turbine constant. Or reduce the drop rate while keeping the gas turbine exhaust temperature (EXH) close to the opti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D27/00F02C7/057
CPCF02C7/057F04D27/003
Inventor 刘海山邱振波胡伟张立杰
Owner CHINA SHENHUA ENERGY CO LTD
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