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A heat transfer device with adjustable heat transfer coefficient

A heat exchange device and heat transfer coefficient technology, applied in the field of heat exchanger devices, can solve problems such as unadjustable heat exchange power, and achieve the effects of eliminating hidden dangers of physical and chemical reactions, high heat exchange temperature difference, and enhancing safety.

Inactive Publication Date: 2017-03-29
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are many types of existing heat exchangers, but most of them are designed for fluid media at room temperature. Their common feature is to obtain the required outlet temperature of the cooled medium by adjusting the flow or temperature of the cooling medium, regardless of whether the flow of the cooling medium cannot be adjusted or For special working conditions such as small adjustment range, the heat transfer power cannot be adjusted

Method used

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  • A heat transfer device with adjustable heat transfer coefficient

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Embodiment Construction

[0015] The present invention is a heat exchange device with adjustable heat transfer coefficient, which can be applied to nuclear industry and metal manufacturing industry. The present invention will be further described below in conjunction with the accompanying drawings.

[0016] A heat transfer device with adjustable heat transfer coefficient, comprising an outer tube 1, an intermediate tube 2, an elastic device 3, an inner tube 4, heat-conducting powder 6, a limiting device 8, a driving mechanism 9, a sealing device 10, and a running track 11; There is an elastic device 3 in the space surrounded by the tube 2 and the inner tube 4, one end of which is fixedly connected to the left fixed end of the heat exchange device, and the other end is connected to the driving mechanism 9; the driving mechanism 9 is installed on the right movable end of the heat exchange device, and can run along the The track 11 moves in the axial direction of the inner tube 4, and the displacement is l...

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Abstract

The invention discloses a heat transfer coefficient adjustable heat-exchange device which comprises an outer tube, a middle tube, an inner tube, an elastic device and a driving mechanism. The heat transfer coefficient adjustable heat-exchange device is characterized in that heat conductive powder is arranged between the middle tube and the inner tube; and under the actions of the driving mechanism and the elastic device, the heat conductive powder can be compressed and loosened. By virtue of the combination of multiple layers of tubes and by adding the elastic device and the driving mechanism, the heat-exchange device disclosed by the invention can avoid mutual leakage and contact between two heat-exchange mediums, so that the safety of a system is enhanced; and under the actions of the driving mechanism and the elastic device, the heat conductive powder can be compressed and loosened to regulate the heat transfer coefficient of the heat-exchange device, so that the heat power of the heat-exchange device is adjustable.

Description

technical field [0001] The invention belongs to a heat exchanger device, in particular to a heat exchange device with adjustable heat transfer coefficient. Background technique [0002] Liquid metal sodium, lead-bismuth, lead-lithium, etc. have good neutronics performance, radiation resistance and heat transfer performance, and their low melting point and high boiling point make the optional operating temperature and pressure of the spallation target system relatively low. Low, it is currently the main candidate material for ADS spallation target and also as coolant. The successful application of liquid metals requires the study of many key scientific and technological issues, such as heat transfer and flow characteristics, magnetohydrodynamic (MHD) effects, online monitoring and purification of impurity components in liquid metals, etc. At present, many countries in the world have built or are building liquid metal circuits to carry out related experiments. The invention c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/20
Inventor 孙陆军洒荣园朱志强黄群英
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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