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Plate-fin regenerator for helium turbine

A regenerator and plate-fin technology, which is applied in the field of regenerators, can solve the problems of low heat exchange efficiency of regenerators, and achieve the effect of improving heat exchange efficiency and solving uneven distribution.

Active Publication Date: 2020-05-15
中国船舶重工集团公司第七0三研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the regenerator is installed inside the pressure shell of the primary circuit, and the heat exchange efficiency of the regenerator is low, and to provide a plate-fin regenerator for a helium turbine

Method used

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  • Plate-fin regenerator for helium turbine
  • Plate-fin regenerator for helium turbine
  • Plate-fin regenerator for helium turbine

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Experimental program
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Effect test

specific Embodiment approach 1

[0013] Embodiment 1: The plate-fin regenerator of the helium gas turbine in this embodiment includes a plurality of regenerator units 1, and a plurality of regenerator units 1 are arranged in the circumferential direction of the inner wall of the casing of the helium gas turbine. The unit 1 includes a housing 1-3, a first cold air inlet pipe 2-1, a second cold air inlet pipe 2-2, a first cold air outlet pipe 3-1, a second cold air outlet pipe 3-2, a hot air outlet pipe 4, Hot gas inlet pipe 5 and dividing plate 6, the cross section of described housing 1-3 is trapezoidal, the first cavity 1-1 and the second cavity 1-2 are arranged along the height direction of trapezoidal cross section, the first cavity The cavity 1-1 and the second cavity 1-2 are cuboid cavities, a partition 6 is arranged between the first cavity 1-1 and the second cavity 1-2, and a partition plate 6 is arranged between the first cavity 1-1 and the second cavity. The cavities 1-2 are respectively provided wit...

specific Embodiment approach 2

[0018] Embodiment 2: This embodiment is different from Embodiment 1 in that 16-18 regenerator units 1 are arranged in the circumferential direction of the casing inner wall of the helium gas turbine.

specific Embodiment approach 3

[0019] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the thickness of the separator 6 in the regenerator unit 1 is 5mm.

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Abstract

The invention relates to a heat regenerator in a helium turbine, in particular to a plate-fin-type heat regenerator in the helium turbine. The problem that when the heat regenerator is mounted in a loop pressure shell, the heat exchange efficiency of the heat regenerator is low is solved. The plate-fin-type heat regenerator of the helium turbine comprises a plurality of heat regenerator units which are arranged in the circumferential direction of the inner wall of a case of the helium turbine; the cross section of a shell of each heat regenerator unit is in a trapezoid shape, and first cavities and second cavities are formed in the height direction of the trapezoidal cross sections and are cuboid cavities; partition plates are arranged between the first cavities and the second cavities, and plate-fin-type cores are arranged in the first cavities and the second cavities correspondingly; and hot air discharging pipes are arranged at the top of the shells, hot air feeding pipes are arranged at the bottoms of the shells, and a two-end air feeding mode is adopted. The problem of uneven distribution of helium can be effectively solved, the heat exchange efficiency of the heat regeneratorof the helium is improved, and the heat regenerating degree reaches 0.95.

Description

technical field [0001] The invention relates to a regenerator in a helium gas turbine. Background technique [0002] The energy conversion system matched with the high-temperature gas-cooled reactor—the helium turbine cycle (Braden cycle) power generation has the advantages of high power generation efficiency, simple system, safety, reliability, and good economy. It is the current development direction in the field of high-temperature gas-cooled reactors. The key factors affecting the efficiency of the Brayden cycle include the inlet and outlet temperatures of the core, the adiabatic efficiency of the compressor and turbine, the degree of heat recovery, the pressure ratio, and the pressure loss rate of the circulation system. The regenerator is a key component of the indirect cycle of the helium turbine in the high-temperature gas-cooled reactor and the heat application of the high-temperature process. The regenerator belongs to the pressure boundary of the primary circuit,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D9/00F28F3/06F02C7/00
CPCF02C7/00F28D9/00F28F3/06
Inventor 李贝贝刑东宇范阔马建强
Owner 中国船舶重工集团公司第七0三研究所