An additively manufactured heat exchanger with a half "half" loop baffle and drainage structure

Abstract

An additive-manufactured heat exchanger with a semi-"half" annular tube-type baffle and drainage structure is characterized in that it adopts additive manufacturing as a whole and is formed by one-time printing. The shape body (12) is formed with a DC channel (4) running through up and down and side flow channels (10) arranged at intervals. The upper end direct current upper sealing head (5) is communicated with each other, the lower end of the side flow channel (10) is communicated with the half "half" drainage lower ring pipe (9), and the upper end of the side flow channel (10) is communicated with the half "half" drainage upper ring The pipes (11) are connected with each other, and the semi-"half" drainage upper ring pipe (11) is connected with the side outflow collecting pipe (8); ). The invention has no leakage, long service life, convenient maintenance, low operation cost, and can realize long-term trouble-free operation.

Description

technical field [0001] The invention relates to a heat exchanger, in particular to a heat exchanger structure manufactured by using additive technology, in particular to an additively manufactured heat exchanger with a half "half" annular tube baffle and drainage structure. Background technique [0002] The nuclear steam generator is the heat exchange equipment that generates the steam required by the steam turbine, and it is also one of the most critical main equipment of the nuclear power plant. It also acts as a blocking radioactive heat carrier, which is crucial to the safety of nuclear power plants. [0003] Spiral coil evaporators are used in high temperature gas-cooled reactor nuclear power plants. The steam generator is the core heat exchange equipment that connects and isolates the primary and secondary circuits. Its main function is to transmit the heat generated by the core of the nuclear reactor from the primary circuit to the secondary circuit to generate super...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the unreasonable structure of the existing additively manufactured heat exchanger, especially the unclear and unreasonable side flow baffle and drainage structure, and the occupied cross-sectional area is large, which is equivalent to the cut-off area of ​​the heat exchange unit. area, resulting in increased cost and increased manufacturing cycle. Design an additive manufacturing heat exchanger with a reasonable structure and high heat transfer with a half "half" ring tube baffle and drainage structure

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