According to news from the Shanghai Nuclear Engineering Research and Design Institute (hereinafter referred to as “Shanghai Nuclear Projectâ€), the important result obtained by the major project led by Shanghai Nuclear Engineering has been “Improved heat flux density at the outer wall of the pressure vesselâ€. The device" was granted a patent for invention.
The invention includes a reactor pressure vessel and an insulation layer coated on the outside of the reactor pressure vessel. A flow channel is formed between the outer wall surface of the reactor pressure vessel and the insulation layer. The interior of the flow channel has a plurality of protrusions fixed on the inner wall surface of the insulation layer. The multiple protrusions are not in contact with each other, arranged in a circumferential direction, or arranged in a misaligned manner. The purpose is to increase the heat exchange capacity of the fluid by changing the accumulation of bubbles in the outer wall of the pressure vessel so as to achieve the purpose of increasing the critical heat flux of the fluid at the corresponding position on the outer wall of the pressure vessel.
With the development of nuclear power in China, nuclear power security has also entered the people’s field of vision as one of the hot spots of nuclear power. On the basis of vigorously developing nuclear power, China has also made unremitting efforts to better protect the safety of nuclear power. The Shanghai Nuclear Power Project “enhanced the device for the heat flux density on the outer wall of the pressure vessel†has been granted a patent for invention. Its simple structure and remarkable utility will greatly increase the safety of nuclear power plants and provide technical support for the development of nuclear power in China.
The invention includes a reactor pressure vessel and an insulation layer coated on the outside of the reactor pressure vessel. A flow channel is formed between the outer wall surface of the reactor pressure vessel and the insulation layer. The interior of the flow channel has a plurality of protrusions fixed on the inner wall surface of the insulation layer. The multiple protrusions are not in contact with each other, arranged in a circumferential direction, or arranged in a misaligned manner. The purpose is to increase the heat exchange capacity of the fluid by changing the accumulation of bubbles in the outer wall of the pressure vessel so as to achieve the purpose of increasing the critical heat flux of the fluid at the corresponding position on the outer wall of the pressure vessel.
With the development of nuclear power in China, nuclear power security has also entered the people’s field of vision as one of the hot spots of nuclear power. On the basis of vigorously developing nuclear power, China has also made unremitting efforts to better protect the safety of nuclear power. The Shanghai Nuclear Power Project “enhanced the device for the heat flux density on the outer wall of the pressure vessel†has been granted a patent for invention. Its simple structure and remarkable utility will greatly increase the safety of nuclear power plants and provide technical support for the development of nuclear power in China.
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