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Electric heating method for liquid metal

A liquid metal and electric heating technology, which is applied in the field of nuclear energy, can solve the problems of easy burning of the heating wire, uneven heating, and the speed of heating cannot meet the test requirements, etc., and achieve the effect of flexible heating, uniform heating, and quick handling of accidents

Pending Publication Date: 2022-04-08
湖南汉华京电清洁能源科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing heating scheme uses an electric heater for heating, the heating wire is easy to burn out, the heating is uneven, and the heating rate cannot meet the test requirements

Method used

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Embodiment Construction

[0026] Specific embodiments of the present invention will be described in detail below. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0027] An electric heating method for liquid metal, the liquid metal is lead-bismuth alloy, the lead-bismuth alloy (LBE) is solid at normal temperature, it is placed in a heating container to be heated and melted to form liquid metal, and the liquid metal flows through the test pipeline And test equipment for detection and monitoring during the test. When the liquid metal flows through the test pipeline and test equipment, it is heated by the electric heating device arranged outside the test pipeline and test equipment to maintain the lead-bismuth alloy in a liquid state.

[0028] The electric heating method comprises the steps of:

[0029] Step S1: Divide the field test pipeline and test equipment into a...

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Abstract

The invention discloses an electric heating method of liquid metal, the liquid metal flows through a test pipeline and test equipment, the method comprises the following steps: S1, dividing the field test pipeline and test equipment into regions to obtain a plurality of sub-regions, S2, calculating the thermal load of the liquid metal in the test pipeline or test equipment corresponding to each sub-region; s3, arranging a plurality of heating wires for heating liquid metal in the test pipeline or the test equipment outside the test pipeline or the test equipment in each sub-region, wherein the plurality of heating wires are connected in parallel; and S4, each sub-region is provided with a junction box, and the heating wire of the sub-region is connected with the junction box of the sub-region. And S5, the solid-state relay conducts or cuts off the heating wire, and the liquid temperature is made to be within the set range. According to the invention, a plurality of low-power heating loops are used for heating, the heating is uniform, the power is adjustable, non-stop maintenance and replacement can be conveniently realized when a fault occurs on site, and the device is suitable for the condition of narrow or irregular site space.

Description

technical field [0001] The invention belongs to the technical field of nuclear energy, in particular to an electric heating method for liquid metal. Background technique [0002] Lead-bismuth alloy (LBE) has the characteristics of high thermal conductivity and hard neutron spectrum. The research on lead-bismuth alloy reactor as the future nuclear energy field has attracted more and more attention from nuclear energy scholars. The most typical application is Lead-bismuth alloy is used as coolant. When the lead-bismuth alloy is used as the liquid metal for cooling the fuel rod bundle, the cell flow channel structure of the rod bundle is constructed, and the lead-bismuth alloy liquid metal enters the cell flow channel structure to cool the fuel rods, and the liquid metal enters the corresponding inlet flow rate and The heating power can be used to obtain the flow and heat transfer behavior of the coolant under the flow channel of the rod bundle cell under different flow states...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/18G01N1/44G01K7/02G01K1/02H05B1/02H05B3/02
Inventor 郭炜何聪金家琪张仲锋李想
Owner 湖南汉华京电清洁能源科技有限公司
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