A block hole type pressureless sintered silicon carbide heat exchange module and process

A technology of sintered silicon carbide and heat exchange modules, applied in indirect heat exchangers, heat exchanger types, heat exchange equipment, etc., can solve the problems of unstable O-ring sealing method, increased production cost, broken pipe leakage, etc. , to achieve the effect of reliable sealing, improving performance and avoiding breakage
CN111233481BActive Publication Date: 2022-02-18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
Patents(China)
Current Assignee / Owner
威海华瓷新材料有限责任公司
Publication Date
2022-02-18

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Abstract

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. It includes at least one sintering unit, and the sintering unit includes a lower plate, a horizontal grid, a middle plate, a vertical grid and an upper plate from bottom to top, and the horizontal grid and the vertical grid are each provided with several parallel They are arranged at intervals of a certain distance, and side bars are set at the borders of the horizontal grid bars and the vertical grid bars. In the present invention, the lower plate, the horizontal grid, the middle plate, the vertical grid, and the upper plate are bonded together for sintering, which effectively solves the problem of the gap between the traditional heat exchange tube and the baffle plate, and avoids the resonance of the heat exchange tube. And fracture occurs; different from the O-ring seal used in the tube-and-tube heat exchanger, the block-hole heat exchanger adopts end-face sealing; which greatly increases the safety and stability of the silicon carbide heat exchanger. The invention has the advantages of high strength, impact resistance, reliable sealing, not easy to break, etc., and effectively improves the service performance of the silicon carbide heat exchange module.
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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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