A method for testing the actual flow characteristics of steam turbine valves
A technology of actual flow and characteristic testing, which is applied in the testing of mechanical components, testing of machine/structural components, measuring devices, etc., can solve problems such as inaccurate testing of actual flow characteristics, achieve good direct economic benefits, and improve safe and economical operation level and power quality, and the effect of improving overall performance
Active Publication Date: 2016-07-06
ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The technical problem to be solved by the present invention is to provide a method for testing the actual flow characteristics of steam turbine valves, which can correctly complete the test of the actual flow characteristics of the steam inlet regulating valve of the steam turbine on the spot during the process, and obtain accurate actual flow characteristics to overcome the In the existing technology, the actual flow characteristic test of the steam inlet regulating valve of the steam turbine is inaccurate.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0014] Embodiment of the present invention: a method for testing the actual flow characteristics of a steam turbine valve, which includes determining the test content, test conditions, test steps and specific methods, and carrying out the test work.
[0015] The test content includes two aspects: ① The steam inlet regulating valve of the steam turbine is in the sequence valve working mode (referring to multiple steam inlet regulating valves according to the preset program, under the action of the valve control command, the switching action is performed in sequence to adjust the inlet and outlet valves. Steam volume, this working method is economical and is the main operation method used by steam turbines), change the valve control command, and test the characteristic relationship between the valve control command and the inlet steam flow. ②Keep the other steam inlet regulating valves fully open, switch on and off the individual steam inlet regulating doors one by one, and test ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method for testing the actual flow characteristics of steam turbine valves, which includes test content, test conditions, test steps and specific methods; The test of the characteristic relationship between the instruction and the intake steam flow; second, the actual flow characteristic test of a single intake steam regulating valve. This method is simple and practical, and can correctly complete the test of the actual flow characteristics of the steam turbine inlet control valve in the process of the process, and obtain accurate actual flow characteristics, which is helpful for discovering existing or possible problems and problems in the active load control of thermal power units. It provides a basis for optimizing the active load control system of generating units, improves the comprehensive performance of active load control of generating units, and improves the safe and economical operation level and power quality of power grids and power plants.
Description
technical field [0001] The invention relates to a method for testing the flow characteristic of a steam turbine valve. Background technique [0002] As a prime mover, the steam turbine has been widely used in many fields, especially in the thermal power generation industry. Its role is crucial to the production process and cannot be replaced. As the prime mover, the control and adjustment of the output power of the steam turbine relies on the steam inlet regulating valve. By changing the opening of the steam inlet regulating valve, the amount of steam entering the steam turbine to do work is adjusted to achieve the purpose of output power control. The size of the active power (active electricity) emitted by the thermal power generating set is controlled by the steam inlet regulating valve of the steam turbine. [0003] The flow characteristic of the steam inlet regulating valve of the steam turbine (referring to the relation characteristic between the flow rate of the mediu...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00
Inventor 柏毅辉张锐锋李忠李前敏石磐严惟震杨经武陈宇何洪流
Owner ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD