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0-shaped lead-bismuth heat exchange device

A heat exchange device, lead-bismuth technology, applied in cooling devices, reactors, greenhouse gas reduction, etc., can solve the problems of limited heat transfer capacity, large pressure drop loss of lead-bismuth fluid, etc., to achieve low manufacturing cost and pressure drop loss Small, easy-to-scale effects

Inactive Publication Date: 2012-12-19
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The heat transfer capacity of the single-pipe casing heat exchanger is limited, but the "U" type casing heat exchanger has a 180° return bend, which causes excessive pressure drop loss of the lead-bismuth fluid

Method used

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  • 0-shaped lead-bismuth heat exchange device
  • 0-shaped lead-bismuth heat exchange device

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Embodiment Construction

[0015] The invention provides a type 0 lead-bismuth heat exchange device. Be described below in conjunction with accompanying drawing.

[0016] figure 1 It is a schematic diagram of "0" type lead-bismuth heat exchange device. The heat exchange device shown in the figure is a device for flow heat transfer on both sides. The shape of the whole heat exchanger is similar to the Arabic numeral "0"; the right ring sleeve of the "0" type lead-bismuth alloy flow channel The right ring coolant flow heat exchange channel 8 is welded on the outer circumference of the tube, the upper end is provided with the first coolant inlet 1, and the lower end is provided with the first coolant outlet 4; Weld the left ring coolant flow heat exchange channel 9 on the circumference, set the second coolant inlet 2 at the upper end, and set the second coolant outlet 5 at the lower end; set the lead-bismuth alloy fluid inlet at the top of the "0"-shaped lead-bismuth alloy flow channel 7 3. A lead-bismu...

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Abstract

The invention belongs to the technical field of heat exchange of nuclear energy equipment, and particularly relates to a 0-shaped lead-bismuth heat exchange device which is a device for realizing flowing heat transfer at the two sides. Coolant flowing heat exchange channels are welded on outer peripheries of left and right annular casing pipes of a 0-shaped lead-bismuth alloy flowing channel, wherein the lead-bismuth alloy fluid flows in an inner tube, and the coolant flows in an external annular space channel; the lead-bismuth alloy exchanges heat with the coolant in the annular space channel while flowing through the device; and device transfers the heat to the coolant at a secondary loop through the liquid lead-bismuth alloy, thereby carrying away the heat of the lead-bismuth fluid. The device has two heat transfer flowing modes, namely forced circulation and natural circulation; the device has the characteristics of being simple in structure, low in manufacturing cost, good in heat exchange performance, small in pressure drop loss of the lead-bismuth fluid and having no limit on types of coolant and the like, so that the device is applicable to a lead-bismuth heat exchange system.

Description

technical field [0001] The invention belongs to the technical field of heat exchange for nuclear energy equipment, in particular to an O-type lead-bismuth heat exchange device suitable for a lead-bismuth heat exchange system. Background technique [0002] Accelerator driven system ADS (accelerate driven system) is an efficient nuclear waste transmutation technology. Its components are: medium energy strong current proton accelerator; external source neutron generation target; subcritical reactor. Since the ADS system coolant uses a lead-bismuth alloy fluid, it is very important to effectively export the heat it carries. At present, no ADS reactor has been built in the world, and foreign countries are conducting experimental circuit research. Whether it is the tube-and-tube intermediate heat exchanger used by the European experimental accelerator drive system (XADS); or the tube-and-tube heat exchanger used by HELIOS in South Korea; the tube-and-tube heat exchanger and the ...

Claims

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Application Information

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IPC IPC(8): G21C15/02
CPCY02E30/40Y02E30/30
Inventor 周涛刘梦影李精精苏子威邹文重吴宜灿柏云清
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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