Steam generator for metal fast reactor

A steam generator and metal technology, which is applied in the field of nuclear power plant equipment, can solve the problems of inability to carry out the maintenance work of heat exchanger heat exchange tube blockage, affecting the natural circulation capacity of liquid metal, and increasing the flow resistance of liquid metal, so as to improve the natural Cycling capability, improving inherent safety, reducing the effect of abrasion
CN108758587AInactive Publication Date: 2018-11-06CHINA NUCLEAR POWER TECH RES INST CO LTD +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA NUCLEAR POWER TECH RES INST CO LTD
Publication Date
2018-11-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a steam generator for metal fast reactor. The steam generator comprises a container body and a heat exchanger arranged in the container body. The container body is provided witha primary side outlet, a primary side inlet, a secondary side outlet and a secondary side inlet from bottom to top, and at least a shell pass and a first pipe pass are formed in the container body. Ahigh-temperature medium enters the shell pass through the primary side inlet, and is exported from the primary side outlet after cooling. A low-temperature medium enters the first pipe pass through the secondary side inlet, and is exported from the secondary side outlet after heating. According to the steam generator for the metal fast reactor, the mode that the high-temperature medium flows through the shell pass and the low-temperature medium flows through the pipe pass is used, the velocity of the shell pass as well as the abrasion degree of the pipe wall of a heat exchange pipe and the container wall are reduced, the circulation ability is improved, and the reliability and safety of the steam generator are improved.
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Description

technical field

[0001] The invention relates to the technical field of nuclear power plant equipment, in particular to a steam generator for metal fast reactors. Background technique

[0002] The steam generators used in nuclear reactors generally use titanium tubes as the corrosion-resistant layer. Since the operating temperature of titanium tubes is below 425 degrees Celsius, this greatly limits the operating temperature range of this type of steam reactor and will not be suitable for metal blocks. In the stack field, titanium tubes are used as the corrosion-resistant layer, which increases the cost of heat exchanger manufacturing. The commonly used U-shaped heat transfer tubes need to be equipped with anti-vibration strips at the bends, and due to the high viscosity of liquid metal, it is easy to corrode heat transfer tubes. For heat pipes, if the liquid metal flows in the tube side, it will increase the flow resistance of the liquid metal, increase the requirements for t...

Claims

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