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Method for constructing mapping curve analyzing liquid phase operation performance of nuclear main pump

A technology of mapping curves and construction methods, applied in the field of research on the full characteristics of the reactor coolant main circulation pump in the nuclear power plant nuclear island, can solve the problems of no new method for processing experimental data and no proposed nuclear main pump, etc.

Active Publication Date: 2015-09-16
JIANGSU UNIV
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Problems solved by technology

This patent only made some explorations on the drawing methods of the existing characteristic curves in this field, and obtained a new drawing method, but did not propose a new method for processing experimental data, or did not propose a method that would help the research of the nuclear main pump. The new curve form of

Method used

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  • Method for constructing mapping curve analyzing liquid phase operation performance of nuclear main pump
  • Method for constructing mapping curve analyzing liquid phase operation performance of nuclear main pump
  • Method for constructing mapping curve analyzing liquid phase operation performance of nuclear main pump

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Experimental program
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Embodiment Construction

[0168] The mapping curve construction method of the present invention will be described in detail below in conjunction with the accompanying drawings. But the application of the present invention is not limited to this embodiment.

[0169] The abscissa of the mapping curve is α / β or β / α, and the ordinate of the head mapping curve is γ / β 2 or gamma / alpha 2 , the ordinate of the torque mapping curve is θ / β 2 2 or θ / α 2 .

[0170] Draw the curve HBN: the experimental data of the forward rotation water pump working condition and the forward rotation positive flow braking condition are α / β on the abscissa and γ / β on the ordinate 2 After processing, mark in the coordinate system according to the obtained vertical and horizontal coordinates, and connect the points according to the Hermite interpolation principle to obtain a smooth curve HBN. For example, the experimental data of a certain working point in the positive water pump working condition is Q=12000 meters 3 / hour, H=8...

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Abstract

The invention belongs to the field of complete characteristics of a main circulating pump of reactor coolant in a nuclear island of a nuclear power plant, and relates to a method for constructing a mapping curve based on a large number of experiment data, mathematical statistics and pump similarity theories. So far, the curves used in the field mainly comprise characteristic curves, zero dimension curves and equal-lift and equal-torque curves which can not comprehensively meet the requirements for analyzing the performance of the nuclear main pump and can not be conveniently programmed on a computer. The mapping analyzing liquid phase operation performance of the nuclear main pump can well solve the problems. The curve has the advantages of being concise and vivid, and convenient to use, and especially the performance of the nuclear main pump can be conveniently analyzed through computer programming. Due to the fact that the mapping curves are kept closed and continuous in a coordinate system, program compiling is simplified to a large extent.

Description

technical field [0001] The invention belongs to the research field of full characteristics of reactor coolant main circulation pumps in nuclear power plant nuclear islands, relates to a mapping curve required for the research and design of nuclear main pumps, and particularly relates to a mapping based on a large amount of experimental data, mathematical statistics and pump similarity theory The construction method of the curve. Background technique [0002] The nuclear reactor coolant main circulation pump, referred to as the nuclear main pump for short, is installed between the reactor primary circuit reactor and the steam generator. Its main function is to ensure the normal circulation of the reactor coolant, cool down the reactor, and simultaneously transfer Thermal energy is transferred to the steam generator. The nuclear main pump works in the harsh environment of high temperature, high pressure and strong radiation, and requires at least 30 years of continuous operat...

Claims

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Application Information

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IPC IPC(8): F04B51/00
Inventor 朱荣生刘永付强王秀礼王学吉张本营
Owner JIANGSU UNIV
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