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Treatment method of alkali metal heat pipe liquid absorption core

A processing method and a liquid absorbing core technology, which are applied in the field of nuclear reactors, can solve the problems of increased volume and limited heat transfer, and achieve the effect of reducing the volume and improving the heat transfer limit.

Inactive Publication Date: 2020-04-28
NUCLEAR POWER INSTITUTE OF CHINA
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] However, the heat transfer of each heat pipe has a limit, and its heat transfer limit is a key factor affecting the design size of the reactor. The greater the power of the core, the more heat pipes are required, and the volume must increase accordingly. Therefore, in order to realize the solid-state reactor miniaturization, it is necessary to increase the heat transfer limit of a single heat pipe

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  • Treatment method of alkali metal heat pipe liquid absorption core
  • Treatment method of alkali metal heat pipe liquid absorption core
  • Treatment method of alkali metal heat pipe liquid absorption core

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Embodiment Construction

[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] The invention provides a treatment method for an alkali metal heat pipe liquid-absorbing core, comprising the following steps:

[0037] Step 1. Confirm the basic principles

[0038] Such as figure 1 As shown, according to the cotter theory, the force balance relationship of the heat pipe during operation is as follows:

[0039] ΔP ca ≥ΔP v +ΔP l +ΔP d，g ±ΔP g (1)

[0040] in,

[0041] ΔP ca is the capillary force, that is, the driving force of the fluid circulation inside the heat pipe, provided by the liquid-absorbing core;

[0042] ΔP v is the gas phase frictional pressure drop (steam flows from the evaporation section to the condensation section);

[0043] ΔP l is the liquid phase friction pressure drop (the condensed liquid flows back from the condensation section to the evaporation section);

[0044] ΔP d，g...

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Abstract

The invention belongs to the technical field of nuclear reactors, and particularly relates to a treatment method of an alkali metal heat pipe liquid absorption core. The treatment method includes thefollowing steps that 1, basic principles are confirmed; 2, materials are prepared; 3, nano-particles are deposited on a silk screen, and the alkali metal heat pipe liquid absorption core is formed; and 4, the alkali metal heat pipe liquid absorption core is applied to a heat pipe. The heat transfer limit of the heat pipe can be increased.

Description

technical field [0001] The invention belongs to the technical field of nuclear reactors, and in particular relates to a treatment method for an alkali metal heat pipe liquid-absorbing core. Background technique [0002] A heat pipe is a heat transfer element that can transmit a large amount of heat over a long distance through its small cross-sectional area without external power, and its heat conductivity exceeds any known metal. The main principle of the heat pipe is to use the capillary force to drive the medium to evaporate at the hot end and then condense at the cold end, which is a phase change process to conduct heat quickly. Heat pipe technology can be applied to the field of nuclear reactors, such as alkali metal (potassium, sodium, lithium) heat pipes used in solid-state reactors. Alkali metal heat pipes are the core components in solid-state reactors, and are the key equipment to replace the core heat export function of the traditional primary coolant system. Fo...

Claims

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Application Information

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IPC IPC(8): F28D15/04
CPCF28D15/046
Inventor 何晓强苏东川柴晓明吴舸马誉高余红星李磊邓坚丁书华何迅曾畅张卓华王金雨曾未张宏亮
Owner NUCLEAR POWER INSTITUTE OF CHINA
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