A reflux heat exchanger for liquid metal convection experiment
A heat exchanger and liquid metal technology, applied in the field of heat exchange, can solve the problems of inability to exchange, fast heat exchange rate, low heat exchange efficiency, etc., and achieve the effect of improving heat exchange efficiency and simple structure
Active Publication Date: 2021-03-26
ANHUI SCI & TECH UNIV
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Problems solved by technology
[0004] What the present invention aims to overcome is that when the existing heat exchange equipment is performing heat exchange, when the medium flows in the pipe, the medium that contacts the heat exchange pipe wall has a fast heat exchange rate, and the medium located in the middle of the pipe cannot be well transferred. The heat is exchanged with the cooling liquid outside the pipe, which leads to the problem of low overall heat exchange efficiency. The purpose is to provide a reflux heat exchanger for liquid metal convection experiments
Method used
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Embodiment 1
[0023] Such as figure 1 , figure 2 Shown; A kind of reflux heat exchanger for liquid metal convection experiment, comprising:
[0024] inner tube 1;
[0025] The outer tube 2, the outer tube 2 is ringed outside the inner tube 1, the inner tube 1 and the outer tube 2 are not in contact, the two ends of the outer tube 2 are welded to the outer wall of the inner tube 1, and the two ends of the outer tube 2 are respectively provided with connection ports 12;
[0026] A mounting frame 13 is installed inside the inner tube 1, a sealing box 14 is installed in the middle of the mounting frame 13, a rotating shaft 15 is installed on the sealing box 14, a stirring plate 16 is fixed on the rotating shaft 15, and an impeller is installed at the end of the rotating shaft 15 passing through the sealing box 14 17. The impeller 17, the sealing box 14, and the rotating shaft 15 are all located inside the inner tube 1;
[0027] Inject high-pressure medium into the inner pipe 1 from the end...
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The invention relates to a backflow heat exchanger for liquid metal convection experiments and relates to the field of heat exchange. The backflow heat exchanger comprises an inner pipe, an outer pipeand an outer pipe, and the outer portion of the inner pipe is sleeved with the outer pipe. The inner pipe does make contact with the outer pipe. The two ends of the outer pipe are welded to the outersidewall of the inner pipe. The two ends of the outer pipe are provided with connectors correspondingly. Mounting racks are mounted in the inner pipe. A sealing box is mounted in the middle of each mounting rack. A rotary shaft is mounted on the sealing boxes. The rotary shaft is fixedly provided with stirring plates. The ends of the rotary shaft penetrate through the sealing boxes to be providedwith impellers. The impellers, the sealing boxes and the rotary shaft are all located in the inner pipe. The backflow heat exchanger ensures that a medium in the inner pipe can make contact with thepipe wall in the flowing process and can improve the heat exchange efficiency of the medium in the inner pipe and cooling fluid outside the pipe.
Description
technical field [0001] The invention relates to the field of heat exchange, in particular to a reflux heat exchanger for liquid metal convection experiments. Background technique [0002] The liquid metal medium refers to an amorphous metal, and the liquid metal can be regarded as a mixture composed of positive ion fluid and free electron gas. Liquid metal is also an amorphous and flowable liquid metal mixed with metallic substances in its liquid state. [0003] In the forced convection experimental circuit of liquid metal, it is necessary to add pressure at the source of the pipeline so that the liquid metal medium can run and flow in the pipeline. During the flow, a heat exchanger is used to exchange heat between high temperature and low temperature liquid metal; the existing heat When the exchange equipment is performing heat exchange, when the medium flows in the pipe, the medium in contact with the heat exchange pipe wall has a fast heat exchange rate, while the medium...
Claims
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IPC IPC(8): F28D7/10F28F13/12
CPCF28D7/10F28F13/125
Inventor 章毛连何恩节张永峰秦炎福官邦贵刘念王娜
Owner ANHUI SCI & TECH UNIV