An optimization method for the steam intake sequence test of the high profile door of the steam turbine

A technology of sequential testing and optimization methods, applied in engine testing, machine/structural component testing, measuring devices, etc., can solve problems such as long testing time, achieve shortened testing time, fast and effective unit operation economy and safety , the effect of ensuring safety

Active Publication Date: 2017-06-20
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the problem that the test time of the traditional high-profile door steam sequence test method is too long

Method used

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  • An optimization method for the steam intake sequence test of the high profile door of the steam turbine
  • An optimization method for the steam intake sequence test of the high profile door of the steam turbine
  • An optimization method for the steam intake sequence test of the high profile door of the steam turbine

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Experimental program
Comparison scheme
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specific Embodiment approach 1

[0045] Specific embodiment one: a kind of optimization method of steam turbine high-profile valve intake sequence test test, comprising the following steps:

[0046] Step 1: Obtain the arrangement information of the nozzle group corresponding to the high-profile door of the unit, including the position of the nozzle group corresponding to each high-profile door and the direction of rotor rotation (the direction positioning standard is viewed from the nose to the direction of the generator) and the opening and closing of each pre-opening valve. Spend;

[0047] Step 2: Design an optimized test plan according to the layout information of nozzle groups with different numbers of high-profile doors, optimize the combination of repetitive steps in the traditional test process, and discard some unnecessary repeated opening or repeated closing in multiple groups of tests the process of;

[0048] Step 3: Adjust the operating parameters and control mode of the unit to meet the test cond...

specific Embodiment approach 2

[0050] Specific implementation mode two: the implementation process of step two in this embodiment mode is:

[0051] If the unit has four high-profile doors, taking Figure 1(a) as an example, there are 12 steam intake sequences that can be designed for the unit, of which there are 4 commonly used diagonal steam intake sequences, which are as follows:

[0052] (1) GV1+GV3-GV4-GV2, that is, the first group of test sequences;

[0053] (2) GV1+GV3-GV2-GV4, that is, the second test sequence;

[0054] (3) GV2+GV4-GV3-GV1, namely the third test sequence;

[0055] (4) GV2+GV4-GV1-GV3, that is, the fourth test sequence;

[0056] At present, the commonly used high-profile door switch test process: perform the above four switch tests respectively; and, "+" means joint synchronous opening or closing; "-" means opening or closing; the group "GV1+GV3-GV4-GV2" Take the steam intake sequence as an example. This sequence indicates that when the unit rises from low load to high load, the hig...

specific Embodiment approach 3

[0063] Specific implementation mode three: the implementation process of step two in this embodiment mode is:

[0064] If the unit has six high-profile doors, taking Figure 1(b) as an example, there are 120 steam intake sequences that can be designed for the unit, of which there are 24 commonly used diagonal steam intake sequences, which are as follows:

[0065] (1) GV2+GV3-GV5-GV4-GV1-GV6, that is, the first group of test sequences;

[0066] (2) GV2+GV3-GV4-GV5-GV1-GV6, that is, the second test sequence;

[0067] (3) GV2+GV3-GV5-GV4-GV6-GV1, namely the third test sequence;

[0068] (4) GV2+GV3-GV4-GV5-GV6-GV1, that is, the fourth test sequence;

[0069] (5) GV5+GV4-GV2-GV3-GV1-GV6, namely the fifth test sequence;

[0070] (6) GV5+GV4-GV3-GV2-GV1-GV6, namely the sixth test sequence;

[0071] (7) GV5+GV4-GV2-GV3-GV6-GV1, that is, the seventh test sequence;

[0072] (8) GV5+GV4-GV3-GV2-GV6-GV1, namely the eighth test sequence;

[0073] (9) GV1+GV6-GV2-GV3-GV5-GV4, that is, t...

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Abstract

The invention relates a method for testing the high pressure regulating valve steam inlet sequence, and particularly relates to a method for optimizing a steam turbine high pressure regulating valve steam inlet sequence testing experiment. The invention aims to solve a problem that a traditional high pressure regulating valve steam inlet sequence testing experiment method is too long in experimental time. According the test scheme which is designed and optimized according to nozzle set arrangement information of different numbers of high pressure regulating valves, repetitive steps in a traditional testing process are optimized and combined, and a process of unnecessary repeated opening or repeated closing existing in multiple groups of experiments is removed; then running parameters and control modes of a unit are regulated so as to meet experimental conditions, and a regulating valve on-off experiment is carried out. The method provided by the invention can effectively shorten the experimental time, and solves the problem that the traditional test method requires a very long time in allusion to a unit experiment. The method is applicable to the test field of steam turbine high pressure regulating valve steam inlet sequence optimization.

Description

technical field [0001] The invention relates to a method for testing the steam intake sequence of a high-profile door, in particular to an optimization method for the steam intake sequence test of a high-profile door of a steam turbine. Background technique [0002] A steam turbine is a common modern large-scale power-generating rotating machine that converts steam energy into mechanical work. One way to directly and effectively control the power of the steam turbine is to change the steam intake by adjusting the opening of the high-profile door, that is, the steam distribution of the steam turbine. Generally speaking, there are two ways of steam turbine distribution, namely single valve and sequence valve. Single valve refers to the command and opening of each high-pressure regulating valve are the same, that is, the way of steam intake at the same time. Sequence valve means that the command and opening of each high-pressure regulating valve (GV) are different, and they op...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M15/00
Inventor 万杰马国林孙建国刘金福马骁李东平邹学明张立民江飞沈涛张成杰张大峰赵利军邹铁军刘金龙于达仁
Owner HARBIN INST OF TECH
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