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Intermediate loop flow control method, device and control system

An intermediate loop, flow control technology, applied in the direction of flow control, control/regulation system, flow control using electrical devices, etc., can solve the problem of not giving full play to the adjustable control characteristics of the intermediate loop flow, so as to improve the control performance and enhance the natural flow. Circulation, the effect of reducing fluctuations

Active Publication Date: 2021-09-17
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, the operation control system of cryogenic nuclear reactors does not use the intermediate loop pump to participate in the control, but adopts the mode of operation at a set speed, which does not fully utilize the control characteristics of the adjustable intermediate loop flow

Method used

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  • Intermediate loop flow control method, device and control system
  • Intermediate loop flow control method, device and control system
  • Intermediate loop flow control method, device and control system

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Embodiment Construction

[0019] In the following, only some exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive.

[0020] In describing the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Straight", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", etc. or The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orie...

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Abstract

The invention provides an intermediate loop flow control method, a control device and a control system for a low-temperature nuclear heating reactor unit. The intermediate loop flow control method includes the following steps: obtaining the operation mode of the low-temperature nuclear heating reactor unit, the set value and measured value of the core outlet temperature, and the set value and measured value of the main steam pressure; and according to the In the above operation mode, based on the set value and measured value of the core outlet temperature and / or the set value and measured value of the main steam pressure, the intermediate loop flow set value is determined, so that according to the intermediate loop flow setting Fixed value to control the speed of the intermediate circuit pump.

Description

technical field [0001] The invention relates to the technical field of nuclear power units, in particular to an intermediate loop flow control method, a control device and a control system for a low-temperature nuclear heating reactor unit. Background technique [0002] The traditional pressurized water reactor nuclear power plant is a dual-circuit device. The reactor core is arranged in the pressure vessel, and the coolant of the primary circuit is pumped to the core through the main pump, and the heat generated by the core is brought to the evaporator to heat the secondary circuit. The water vaporizes it, and the generated steam participates in the steam turbine to generate electricity, and finally condenses into condensed water, which is pressurized by the feed water pump and sent back to the evaporator to complete the cycle. [0003] The low-temperature nuclear heating reactor power plant adopts a triple loop design different from the typical nuclear power plants mention...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D7/06
CPCG05D7/0635
Inventor 董哲刘苗李博文姜頔黄晓津
Owner TSINGHUA UNIV
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