Nanofluid cooling loop system suitable for pressurized water reactor nuclear power plant

Abstract

The invention relates to a nanofluid cooling loop system suitable for a pressurized water reactor nuclear power plant, and belongs to the field of nuclear engineering application. The system comprises a nanofluid particle size detector, a nanofluid dispersion tank and loop pipeline equipment, wherein the front end of the nanofluid particle size detector is provided with a sampling box; and a high-frequency ultrasonic vibration disperser set, a stirrer and a filter screen are arranged in the nanofluid dispersing tank and are controlled by a controller to start. The system has the beneficial effects that the system can be used as a system (such as a primary loop cooling system and a key equipment cooling system) of various cooling loops of the pressurized water reactor nuclear power plant, and higher cooling efficiency is achieved by utilizing the enhanced heat transfer characteristic of the nanofluid.

Description

technical field [0001] The invention belongs to the field of nuclear engineering applications, and in particular relates to a nanofluid cooling loop system suitable for pressurized water reactor nuclear power plants. Background technique [0002] Nanofluid refers to the dispersion of metal or non-metallic nanopowders into traditional heat exchange media such as water, alcohol, and oil to prepare a new type of heat exchange medium that is uniform, stable, and highly conductive. This is the application of nanotechnology in thermal energy engineering. Innovative research in traditional fields. Nanofluids have huge potential application prospects in the fields of energy, chemical industry, automobile, construction, microelectronics, information, etc., and thus become research hotspots in many fields such as materials, physics, chemistry, and heat transfer. [0003] Experimental research shows that: the use of appropriate nanofluids can achieve the purpose of enhancing heat tran...

AI Technical Summary

Problems solved by technology

Nanofluids are used as the main coolant in the primary circuit of nuclear power plants or in the design of cooling of key large-scale equipment, but there are only a few problems. The main problems are as follows: 1) The current technical means cannot make nanofluids last for a long time (at least 1 year). Maintain a uniform and stable dispersion state; 2) As the main coolant, the use of nanofluid stability adjustment reagents, such as organic macromolecular reagents and pH adjustment reagents, is severely restricted; 3) the aggregated nanoparticles may affect the Hazard from pump or piping

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