System and method for preventing soaring speed of steam turbine in power plant unit
A technology of steam turbines and units, which is applied in the direction of machines/engines, mechanical equipment, engine components, etc., and can solve problems such as soaring speed of steam turbines
Active Publication Date: 2015-12-02
CHINA SHENHUA ENERGY CO LTD +2
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[0003] The purpose of the present invention is to provide a system for preventing the soaring speed of steam turbines in power plants and a method for preventing soaring speeds of steam turbines in power plants, so as to solve the problem of soaring speeds of steam turbines in the prior art
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[0018] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, not to limit the present invention.
[0019] figure 1 It is a block diagram of a system for preventing the speed of a steam turbine in a power plant unit from soaring according to an embodiment of the present invention.
[0020] like figure 1 As shown, the system for preventing the soaring speed of the steam turbine of the power plant unit provided by the present invention includes: a speed detection device 10 for detecting the current speed of the steam turbine; a control device 12 connected with the speed detection device 10 for controlling the detected speed of the steam turbine The current rotation speed of the steam turbine is compared with the predetermined rotation speed, and the control device is also used...
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The invention discloses a system and method for preventing the rotating speed of a turbine of a power plant unit from being raised rapidly. The system comprises a rotating speed detection device and a control device, wherein the rotating speed detection device is used for detecting the current rotating speed of the turbine, the control device is connected with the rotating speed detection device and used for comparing the detected current rotating speed with a preset rotating speed, and the control device is further used for being connected with a switch device which communicates a power plant with a power grid so as to detect the state of the switch device and adjusting an initial load set value of the unit or the current rotating speed of the turbine according to the comparison result and the state of the switch device. Therefore, according to the system and the method, the problem that the rotating speed of the turbine is raised rapidly due to unreliability of grid-tied signals can be solved, and stability and safety of the power plant unit can be ensured.
Description
technical field [0001] The invention relates to a system and a method for preventing the soaring speed of a steam turbine of a power plant unit. Background technique [0002] In the prior art, when the steam turbine of the power plant starts to run, there is usually a problem of soaring turbine speed caused by the unreliable grid connection signal and the wrong setting of the operator, and the occurrence of this problem will affect the power plant unit. stability and security. Contents of the invention [0003] The object of the present invention is to provide a system and a method for preventing the soaring speed of the steam turbine of the power plant unit, so as to solve the problem of the soaring speed of the steam turbine in the prior art. [0004] In order to achieve the above object, the present invention provides a system for preventing the speed of a steam turbine in a power plant unit from soaring. The system includes: a speed detection device for detecting the ...
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IPC IPC(8): F01D21/00
Inventor 严海川王文彬
Owner CHINA SHENHUA ENERGY CO LTD