A method for adjusting the variable operating conditions of the secondary circuit cooling water system

A technology of cooling water system and adjustment method, which is applied in ship building, ship propulsion, ship, etc., can solve the problems of flow distribution and control technology constraints, double-circuit coordination and matching operation complexity, etc., to improve system interchangeability and reliability , reduce the boundary range, and reduce the effect of vibration and noise levels
CN111483583BActive Publication Date: 2021-07-13CHINA SHIP DEV & DESIGN CENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA SHIP DEV & DESIGN CENT
Publication Date
2021-07-13

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Abstract

The present invention proposes a system and method for adjusting working conditions of a secondary-circuit cooling water system, including a seawater circuit and a freshwater circuit, which are respectively composed of two seawater pipelines and freshwater heat exchange pipelines connected in parallel, and seawater pumps, The seawater ball valve, the seawater desalination heat exchanger unit and the seawater flow regulating valve, the freshwater heat exchange pipeline and the cooling water user pipeline form an internal circulation. The present invention utilizes the design method of the split heat exchanger, by switching the opening and closing states of the heat exchanger, and matching the different heat transfer requirements of the cooling water system when the working conditions change, it can reduce the adjustment demand of the cooling user branch flow regulating valve, which is beneficial Flow adjustment distribution and flow-induced noise control of cooling water system.
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Description

technical field

[0001] The invention belongs to the technical field of a secondary circuit cooling water system, and in particular relates to a method for adjusting variable working conditions of a secondary circuit cooling water system. Background technique

[0002] The cooling water system is an important part of the secondary circuit system of the nuclear power system. Its main function is to provide cooling water for the equipment that needs water cooling in the power system, and take out the heat generated by it to ensure the safe and normal operation of the power system. In addition, it is also used as the sea water source of the water generation system, and undertakes the function of supplying cooling water for the removal of active waste heat of the reactor.

[0003] At present, the seawater system of ships under construction in my country adopts the decentralized multi-nozzle single-stage single-circuit cooling technology, that is, many users are cooled by single-st...

Claims

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