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Small-sized lead-based reactor heat exchanger with cold fluid and hot fluid conducting direct contact and mixing

A lead-based reactor and cold fluid technology, applied in the direction of direct contact heat exchanger, heat exchanger type, steam generation method using heat carrier, etc., can solve the problem of large equipment size, large heat transfer resistance, scaling, etc. problems, achieving low cost, small equipment size, and reduced fouling and corrosion

Inactive Publication Date: 2019-04-09
中科瑞华(安徽)中子能源技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: a small-scale lead-based reactor cold and hot fluids directly contact the mixed heat exchanger to solve the problem of new thermal power generation technologies such as photothermal-molten salt power generation, nuclear heat-liquid heavy metal power generation, etc. , The heat transfer resistance of the partition wall heat exchanger is large, the equipment size is large, and the heat exchange tube is prone to corrosion and scaling, which improves the economy, safety and reliability of the commercial application of new thermal power generation technology

Method used

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  • Small-sized lead-based reactor heat exchanger with cold fluid and hot fluid conducting direct contact and mixing

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Effect test

Embodiment 1

[0017] Embodiment 1: as figure 1 As shown, the hot and cold fluids of a small lead-based reactor directly contact the mixed heat exchanger, including heat exchange tank 1, liquid lead alloy liquid surface 2, liquid lead alloy outlet 3, liquid lead alloy inlet 4, and feed water mixing nozzle 5. Water supply inlet 6. Lead alloy liquid level gauge 7. Steam outlet 8. Among them, the liquid lead alloy inlet 4, feed water mixing nozzle 5, and feed water inlet 6 are located at the bottom of the heat exchange tank 1, the liquid lead alloy outlet 3 is located below the liquid lead alloy liquid surface 2, and the steam outlet is located at the top of the heat exchange tank 1. The hot fluid inlet 4 is located at the bottom of the heat exchange tank 1, the cold fluid inlet 6 is located above the hot fluid inlet 4, and the cold fluid mixing nozzle 5 is placed inside the heat exchange tank 1 at the same height as the cold fluid inlet 6 , the hot fluid outlet 3 is located above the cold flu...

Embodiment 2

[0020] Embodiment 2: as figure 1 As shown, the hot and cold fluids of a small lead-based reactor directly contact the mixed heat exchanger. The structure of this embodiment is the same as that of Embodiment 1, except that molten salt is used as the heating fluid and supercritical carbon dioxide is used as the working fluid for power generation. The molten salt flows into the heat exchanger from the thermal fluid outlet 3 and flows out of the heat exchanger from the thermal fluid inlet 4 .

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Abstract

The invention discloses a small-sized lead-based reactor heat exchanger with cold fluid and hot fluid conducting direct contact and mixing. The small-sized lead-based reactor heat exchanger with the cold fluid and the hot fluid conducting direct contact and mixing is mainly composed of a heat exchange tank body, a hot fluid level, a hot fluid outlet, a hot fluid inlet, a cold fluid mixing spray nozzle, a cold fluid inlet, a liquid level gauge and a cold fluid outlet. Through the cold fluid mixing spray nozzle, direct contact and mixing heat exchange can be achieved between a cold fluid workingmedium and a hot fluid working medium, so that the heat exchange efficiency between the cold fluid and the hot fluid is greatly improved. The small-sized lead-based reactor heat exchanger with the cold fluid and the hot fluid conducting direct contact and mixing has the remarkable advantages of being simple in structure, low in operation cost, excellent in heat exchange performance and the like and suitable for the industrial applications such as heat recovery of a large-proportion high-boiling-point medium and power generation working medium efficient production.

Description

technical field [0001] The invention relates to the technical field of thermal energy power generation of a medium with a large specific gravity and a high boiling point, in particular to a small-scale lead-based reactor in which cold and hot fluid directly contact a mixing heat exchanger. Background technique [0002] Large specific gravity, high boiling point medium (such as molten salt, liquid heavy metal lead, etc.), due to its excellent thermophysical properties, is a key research direction in the new generation of thermal power generation technology. [0003] In the existing solar thermal power generation technology, molten salt is mostly used as the heat transfer and heat storage medium, combined with steam power cycle to generate electricity. In addition, the use of liquid heavy metal lead alloys, molten salts and other normal-pressure high-boiling-point media as coolants can effectively improve the inherent safety of reactor systems, and is an important research dir...

Claims

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Application Information

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IPC IPC(8): F22B1/06F28C3/04
Inventor 陈刘利黄超洒荣园
Owner 中科瑞华(安徽)中子能源技术有限公司