Integral modular channel type heat exchanger structure based on additive manufacturing forming

Abstract

The invention discloses an integral modularized channel type heat exchanger structure based on additive manufacturing forming. The structure is characterized in that the integral modularized channel type heat exchanger structure is formed by one-time printing through the additive manufacturing technology and comprises a solid heat exchange main body section (12); a direct flow channel (4) allowing a first medium to flow through and a side flow channel (9) allowing a second medium to flow through are formed in the heat exchange main body section (12); a heat exchange unit (3) is formed at the intersection of the direct flow channel (4) and the side flow channel (9), the lower end of the direct flow channel (4) is in communication with a direct flow lower seal head (2), and the upper end of the direct flow channel (4) is in communication with a direct flow upper seal head (5); the lower end of the side flow channel (9) is in communication with a side flow lower sealing head (8); and the upper end of the side flow channel (9) is in communication with a side flow upper sealing head (10). The integral modularized channel type heat exchanger structure is simple in structure and high in heat exchange efficiency, and compared with a shell-and-tube type heat exchanger with the same outer diameter, the heat exchange efficiency is improved by more than one time, and leakage is avoided.

Description

technical field [0001] The invention relates to a heat transfer equipment used in the fields of nuclear power, thermal power, chemical industry, metallurgy, energy, etc., especially a technology for manufacturing heat transfer equipment with additive materials, specifically an integral modular channel based on additive manufacturing heat exchanger 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. ...

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Problems solved by technology

[0007] The purpose of the present invention is to solve the side flow baffle and the drainage structure of the existing additively manufactured heat exchanger, which are not clear and unreasonable, and occupy a large cross-sectional area, which is equivalent to the cross-sectional area of ​​the heat exchange unit, resulting in an increase in cost. To solve the problem of increased manufacturing cycle, design an overall modular channel heat exchanger structure based on additive manufacturing

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