Additive manufacturing heat exchanger with half ''half'' annular pipe type baffling and drainage structure

Abstract

The invention discloses an additive manufacturing heat exchanger with a half ''half'' annular pipe type baffling and drainage structure. The additive manufacturing heat exchanger is characterized in that the additive manufacturing heat exchanger adopts additive manufacturing and is formed by one-time printing, the additive manufacturing heat exchanger comprises a solid column type body (12), a top-bottom-through direct flow channel (4) and side flow channels (10) are formed in the solid column type body (12), the side flow channels (10) are arranged at intervals, the lower end of the direct flow channel (4) communicates with a direct flow lower sealing head (2), the upper end of the direct flow channel (4) communicates with a direct flow upper sealing head (5), the lower ends of the side flow channels (10) communicate with a half ''half'' drainage lower ring pipe (9), the upper ends of the side flow channels (10) communicates with the half ''half'' drainage upper ring pipe (11), the half ''half'' drainage upper ring pipe (11) communicates with a side flow-out gathering pipeline (8), and a heat exchange unit (3) is formed at the intersection part of the direct flow channel (4) and the side flow channels (10). The additive manufacturing heat exchanger is free of leakage and seepage, long in service life, convenient to maintain, low in operation cost and capable of achieving long-term fault-free work.

Description

technical field [0001] The invention relates to a heat exchanger, in particular to a heat exchanger structure manufactured by 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 power 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. The steam generator is connected with the reactor pressure vessel, which not only directly affects the power and efficiency of the power plant, but also when exchanging heat, It also plays a role in blocking radioactive heat transfer agents, which is crucial to the safety of nuclear power plants. [0003] High-temperature gas-cooled reactor nuclear power plants use spiral coil evaporators. The steam generator is the core heat exchange equipment that connects and isolates the prima...

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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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