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High-temperature heat exchanger for liquid metaland heat exchange system

A liquid metal and heat exchanger technology, applied in indirect heat exchangers, heat exchanger types, heat exchange equipment, etc., can solve the problems of liquid metal corrosion, shortening the service life of heat exchangers, etc. The effect of prolonging the service life and improving the heat exchange effect

Inactive Publication Date: 2019-03-08
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing heat exchangers are usually made of conventional metals such as steel, copper, and aluminum. The heat exchangers are easily corroded by liquid metals during long-term operation at high temperatures, which greatly shortens the service life of the heat exchangers.

Method used

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  • High-temperature heat exchanger for liquid metaland heat exchange system
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Experimental program
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Effect test

Embodiment 1

[0033] Such as figure 1 As shown, the present invention provides a high temperature heat exchanger for liquid metal, the heat exchanger includes a shell 9 and two tube boxes 10 respectively arranged at both ends of the shell 9, the tube box 10 is connected to the tube plate 6 and The shell 9 is connected; the shell 9 is provided with a plurality of heat exchange tubes 8, and the two ends of the heat exchange tubes 8 protrude from the corresponding tube sheets 6 to form a channel for the flow of liquid metal together with the two tube boxes 10 , that is to say, the two ends of the heat exchange tube 8 communicate with two tube boxes 10 respectively; the side wall of the shell 9 is provided with a shell-side inlet 3 and a shell-side outlet 4, and the tube box 10 is provided with a tube-side inlet 1 And the tube side outlet 2; the tube box 10 and the heat exchange tube 8 are made of refractory metal alloy.

[0034] When in use: if the liquid metal flowing into the heat exchanger...

Embodiment 2

[0044] The present invention also provides a heat exchange system for liquid metal, the system includes a plurality of the above-mentioned heat exchangers for liquid metal, a plurality of heat exchangers for liquid metal are connected in series, that is to say , the tube-side outlet and shell-side outlet of one of the two adjacent liquid metal heat exchangers are connected to the tube-side inlet and shell-side outlet of the other liquid metal heat exchanger respectively. The shell side inlet is connected.

[0045] The following uses a heat exchange system including two heat exchangers for liquid metal as an example to illustrate how to use the heat exchange system:

[0046] Such as figure 2 As shown, one of the heat exchangers for liquid metal is the primary high-temperature heat exchanger, and the other heat exchanger for liquid metal is the final high-temperature heat exchanger. Among them, the tube-side outlet 1-2 of the primary high-temperature heat exchanger is connect...

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Abstract

The invention relates to the technical field of heat exchange, and provides a high-temperature heat exchanger for liquid metaland heat exchange system. The heat exchanger comprises a shell and two pipe boxes arranged at the two ends of the shell correspondingly. The pipe boxes are connected with the shell through pipe plates. Multiple heat exchange pipes are arranged in the shell. The two ends ofeach heat exchange pipe extend out of the corresponding pipe plates correspondingly. A shell pass inlet and a shell pass outlet are formed in the side wall of the shell. A pipe pass inlet and a pipe pass outlet are formed in one pipe box. The pipe boxes and the heat exchange pipes are made of a refractory metal alloy. The system comprises multiple heat exchangers used for the liquid metal. According to the high-temperature heat exchanger and the heat exchange system, by arranging the pipe boxes, made of the refractory metal alloy, at the two ends of the shell and arranging the heat exchange pipes, made of the refractory metal alloy, in the shell, high temperature resistance, high pressure resistance and corrosion resistance of the heat exchanger can be remarkably improved, and the liquid metal can be used as a heat exchange medium for a long time when the heat exchanger conducts heat exchange; and in this way, the heat exchange effect can be improved, the corrosion effect of the liquidmetal on the heat exchanger can be reduced, and the service life can be prolonged.

Description

technical field [0001] The invention relates to the technical field of heat exchange, in particular to a heat exchanger and a heat exchange system for liquid metal. Background technique [0002] At present, heat exchangers are widely used in petrochemical, energy, metallurgy, refrigeration, nuclear energy and other industrial fields. In recent years, with the improvement of working condition parameters and the improvement of resource and environmental protection requirements, the working environment temperature of heat exchangers has begun to develop in the direction of high temperature and high pressure. This requires that the heat exchanger not only has a good heat exchange effect, but also has high temperature resistance, high pressure resistance and corrosion resistance. In addition to the characteristics of non-toxicity, stable chemical properties, low viscosity, high thermal conductivity and good fluidity, liquid metals represented by gallium-based and bismuth-based a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/16F28F21/08C22C12/00C22C27/04C22C14/00C22C28/00
CPCC22C12/00C22C14/00C22C27/04C22C28/00F28D7/1615F28F21/081F28F21/086
Inventor 崔云涛张成林刘静
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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