Photothermal heat exchanger shell pass sealing device

Abstract

The invention discloses a photothermal heat exchanger shell pass sealing device. The photothermal heat exchanger shell pass sealing device is characterized by comprising an M-shaped groove, wherein amiddle groove of the M-shaped groove is matched with a partition plate, a plurality of sealing pieces with bending structures are arranged in grooves in the two sides correspondingly, one folding edges of the sealing pieces are arranged in the grooves of the M-shaped groove, and the other folded edges are arranged outside the grooves of the M-shaped groove and extend to the outer side of the partition plate; and the bending angles of the sealing pieces which are sequentially arranged from the partition plate to the two sides are gradually reduced. According to the photothermal heat exchanger shell pass sealing device, the sealing pieces and a cylinder body are attached by virtue of the self weight of the longitudinal partition plate, the disassembly and assembly maintenance requirements are met while the sealing is ensured, the sealing performance is more reliable, and the installation is convenient; and compared with the welding seal, a welding procedure is omitted, stress concentration on the shell is avoided, and the fatigue requirement of photothermal equipment is met.

Description

technical field [0001] The invention relates to a shell-side sealing device of a photothermal heat exchanger, which is used for sealing a longitudinal partition in a double-shell-side shell-and-tube heat exchanger, and belongs to the technical field of heat exchangers. Background technique [0002] The sealing forms between the longitudinal partition and the shell of the existing double-shell-side shell-and-tube heat exchanger include: [0003] For detachable tube bundles, this sealing structure is a two-way sealing structure. Sealing strips are installed on the upper and lower sides of each side of the partition, and rely on the pre-tightening force of the stainless steel spring to make it close to the shell-side cylinder. Finally, bolts and pressure plates are used to Fixed; for fixed tube-sheet heat exchangers, the longitudinal partition is directly welded to the shell-side cylinder or inserted into the sealing groove. [0004] The shell-side medium of the photothermal h...

AI Technical Summary

Problems solved by technology

The welded connection between the longitudinal partition and the cylinder body will cause stress concentration at the connection part, and the fatigue life is difficult to meet the design requirements

The longitudinal partition and the cylinder body are connected by elastic seals and bolts. The seal material, thickness, bolt spacing and roundness of the cylinder need to be fully considered. If the design is unreasonable or the manufacturing process is biased, it is easy to cause fluid short circuit

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