Detachable heat exchanger plate bundle composed of all-welded plate tubes

Abstract

The invention relates to a detachable heat exchanger plate bundle composed of all-welded plate tubes. The heat exchanger plate bundle comprises corrugated plate pieces and inlaid strips. Holes are formed in the parts, close to the two ends, of each corrugated plate piece, the holes are medium exiting and entering openings, and seal gasket grooves are formed in the medium exiting and entering openings. Every two corrugated plate pieces are oppositely bucked together, so that protrusive corrugations on the corrugated plate pieces make contact mutually, the corresponding inlaid strips are additionally arranged on the peripheries, then the corrugated plate pieces and the inlaid strips are welded together to form one all-welded plate tube, and a channel is formed in the plate tube and used for allowing one kind of fluid to circulate. The plate tubes are stacked together in a pairwise mode, seal gaskets are assembled in the seal gasket grooves to form the plate bundle, and channels formed between the plate tubes are the channels used for allowing the other kind of fluid to circulate. According to the plate bundle, a bolt linkage mode is adopted for fixing, so that the detachable heat exchanger plate bundle is formed. The problem that in the actual working, a plate bundle is prone to being blocked is solved.

Description

technical field [0001] The invention belongs to the technical field of design and manufacture of heat exchangers, in particular to a heat exchanger corrugated plate bundle, in particular to a detachable heat exchanger plate bundle composed of fully welded plate tubes. Background technique [0002] According to different assembly forms, heat exchangers can be divided into two types: detachable and fully welded. The advantage of the detachable heat exchanger is that it is convenient to disassemble and assemble. The disadvantage is that the pressure bearing capacity is low, so it is suitable for heat exchange of low pressure, easy to scale, and high viscosity medium. The advantage of the all-welded heat exchanger is that it has high pressure and temperature resistance, and the disadvantage is that it cannot be disassembled, so it is impossible to clean the dust and dirt accumulated on the plates. [0003] Plate heat exchangers are usually used in petroleum, petrochemical, coal...

AI Technical Summary

Problems solved by technology

The advantage of the detachable heat exchanger is that it is more convenient to disassemble and assemble, but the disadvantage is that the pressure bearing capacity is low, so it is suitable for heat exchange of low-pressure, easy-to-fouling, high-viscosity coefficient media

The advantage of the fully welded heat exchanger is that it has high pressure and temperature resistance, and the disadvantage is that it cannot be disassembled, so it is impossible to clean the dust and dirt accumulated on the plates

[0003] Plate heat exchangers are usually used in petroleum, petrochemical, coal chemical and other fields. In production, such a working condition is often encountered. One medium has a small viscosity coefficient, but the working pressure or temperature is high, and the other The second kind of medium has low working pressure, but it is easy to accumulate dust, scale or block the channel due to the large viscosity coefficient.

Under these conditions, existing fully welded heat exchangers often clog (even with wide runner plates) and existing detachable heat exchangers leak

Therefore, the existing heat exchangers cannot meet this specific working condition

Whether it is clogging or leakage, it will cause the failure of the heat exchanger, which will bring serious safety hazards to daily production.

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