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Method for measuring sacrifice concrete heat transfer law

A sacrificial concrete and measurement method technology, applied in the field of measurement of heat transfer law, can solve the problem that there is no document disclosing the heat transfer law of sacrificial concrete, and achieve the effect of wide engineering application prospect and scientific research value, high accuracy and simple equipment

Inactive Publication Date: 2015-05-06
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no literature disclosing a measurement method involving sacrificial concrete heat transfer laws

Method used

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  • Method for measuring sacrifice concrete heat transfer law
  • Method for measuring sacrifice concrete heat transfer law
  • Method for measuring sacrifice concrete heat transfer law

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The method for measuring the heat transfer law of sacrificial concrete comprises the following steps:

[0019] (1) The making of sacrificial concrete specimen: design and manufacture sacrificial concrete specimen according to the mix ratio of sacrifice concrete, the mix ratio of sacrifice concrete used in this embodiment is as shown in Table 1:

[0020] Table 1 Sacrificial concrete mix ratio (kg / m 3 )

[0021] cement

fly ash

Silica fume

Quartz sand

Hematite

water

Superplasticizer

388

135

20

1060

980

181

7.6

[0022] In this embodiment, 5 B-type thermocouples are inserted on the central axis of the bottom of the test piece. The distance between each thermocouple is 3cm. The distance between the thermocouple and the bottom surface is 3cm, and the numbers of the thermocouples are 1, 2,...5 from top to bottom; then the thickness of the specimen is W=4+5×3+3=22cm; according to figure 1 Make sacrifici...

Embodiment 2

[0027] The method for measuring the heat transfer law of sacrificial concrete comprises the following steps:

[0028] (1) The making of sacrificial concrete specimen: design and manufacture sacrificial concrete specimen according to the mix ratio of sacrificial concrete, the mix ratio of sacrificial concrete used in this embodiment is as shown in Table 2:

[0029] Table 2 sacrificial concrete mix ratio (kg / m 3 )

[0030] cement

fly ash

Silica fume

Quartz sand

Hematite

water

Superplasticizer

388

135

20

1060

980

181

7.6

[0031] In this embodiment, 9 B-type thermocouples are inserted on the central axis of the bottom of the test piece. The distance between each thermocouple is 3cm. The distance between the thermocouple and the bottom surface is 3cm, and the thermocouple numbers are 1, 2, ... 9 from top to bottom; then the low thickness of the test piece W=4+9×3+3=34cm; according to figure 1 Make sacrific...

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Abstract

The invention provides a method for measuring a sacrifice concrete heat transfer law. The method comprises the following steps: preparing a sacrifice concrete sample; connecting kinds of thermocouples and a multi-channel temperature measuring instrument; injecting molten stainless steel into the sacrifice concrete sample, and simultaneously, starting the multi-channel temperature measuring instrument; recording reading numbers of the thermocouples at different moments; building three-dimensional right-angle coordinate systems by employing the positions of the thermocouples as x axes, the reading number of the thermocouples as y axes and different moments t as z axes according to the reading numbers of the thermocouples at the same moment, the reading numbers of the thermocouples at different moments and the positions of the thermocouples in sacrifice concrete; and drawing a relationship function graph by virtue of MATLAB mathematical software so as to obtain the sacrifice concrete heat transfer law. A conventional measurement instrument is adopted, so that the operation is simple and convenient and the measurement result is accurate; and the sacrifice concrete heat transfer law at different time intervals can be measured.

Description

technical field [0001] The invention relates to a method for measuring heat transfer laws, in particular to a method for measuring heat transfer laws of sacrificial concrete. Background technique [0002] Sacrificial concrete is an important part of the European Pressurized Water Reactor (EPR), which is a representative of the world's third-generation nuclear power technology. A major innovation of this technology is to use the role of sacrificial concrete to make nuclear power plants in severe nuclear accidents It is safer for the public and the environment. When a severe nuclear accident occurs, the sacrificial concrete interacts with the core melt, oxidizes the highly radioactive components of the core melt, reduces the temperature of the core melt and reduces the increase in the internal pressure of the containment, and prevents the reactor core melt from wearing out. Through the bottom plate and cause serious nuclear pollution. During the interaction between the sacri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/18
Inventor 褚洪岩孙伟蒋金洋
Owner SOUTHEAST UNIV
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