Block hole-type pressureless sintering silicon carbide heat-exchange module and process thereof

A technology of sintered silicon carbide and heat exchange modules, which is applied in the field of engineering ceramic materials, can solve the problems of O-ring sealing instability, increased production costs, broken tube leakage, etc., to achieve reliable sealing, improve performance, and avoid breakage Effect
CN111233481AActive Publication Date: 2020-06-05威海华瓷新材料有限责任公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
威海华瓷新材料有限责任公司
Publication Date
2020-06-05

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Abstract

The invention belongs to the technical field of engineering ceramic materials, and particularly relates to a block hole-type pressureless sintering silicon carbide heat-exchange module and a process thereof. The module comprises at least one sintering unit, each sintering unit sequentially comprises a lower plate, a plurality of transverse lattice bars, a middle plate, a plurality of vertical lattice bars and an upper plate from bottom to top, the transverse lattice bars and the vertical lattice bars are arranged at certain intervals, and edgings are arranged on the boundaries of the transverse lattice bars and the vertical lattice bars. The lower plate, the transverse lattice bars, the middle plate, the vertical lattice bars and the upper plate are bonded together to be sintered, the problem that a gap exists between a traditional heat exchange pipe and a baffle plate is effectively solved, and the heat exchange pipe is prevented from being broken due to resonance; different from O-shaped ring sealing adopted by a tube type heat exchanger, end face sealing is adopted by a block hole type heat exchanger; and the use safety and stability of the silicon carbide heat exchanger are greatly improved. The silicon carbide heat-exchange module has the advantages of being high in strength, resistant to impact, reliable in sealing, not prone to breakage and the like, and the use performance is effectively improved.
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Description

technical field

[0001] The invention belongs to the technical field of engineering ceramic materials, and in particular relates to a block hole type pressureless sintered silicon carbide heat exchange module and a process. Background technique

[0002] Silicon carbide is a single-phase, pressureless sintered silicon carbide ceramic with excellent properties such as high purity, fine grain and extremely low porosity. Excellent alternative. Silicon carbide is widely used in extreme environments of high temperature, high pressure, strong corrosion, and high wear in chemical, pharmaceutical, and metallurgical industries, especially silicon carbide heat exchangers.

[0003] At present, the pressureless sintered silicon carbide heat exchanger generally adopts the shell and tube design. However, silicon carbide parts cannot be welded effectively, so O-rings and tube-sheet seals are generally used. However, the sealing method of the O-ring is unstable, and under high pressure, hi...

Claims

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