Spiral-plate heat exchanger

Abstract

The invention relates to a spiral-plate heat exchanger which aims to solve the problems that a welding part of a spiral heat exchange plate of a current spiral-plate heat exchanger and a partition plate is relatively great in stress and is easy to block, and the manufacturing cost is relatively high. According to the spiral-plate heat exchanger, inner spiral ends of two spiral heat exchange plates which are arranged at intervals are connected through one partition plate, and the partition plate is used for dividing a gap between the two spiral heat exchange plates into two spiral cold and heat channels; upper and lower ends of the cold and heat channels are sealed; inner and outer spiral ends of the cold and heat channels are connected to an inlet and an outlet of cold and heat media; the two spiral heat exchange plates and the partition plate are integrated, and are made of the same block material. The two spiral heat exchange plates and the partition plate are once rolled and formed by the same block material, so that the manufacturing process is simple, the cost is low, the stress is relatively low, damage is not easily caused, and the leakage problem is avoided.

Description

technical field [0001] The invention relates to a spiral plate heat exchanger. Background technique [0002] In the existing spiral plate heat exchanger, the inner helical ends of the two helical heat exchange plates arranged at intervals are connected by a partition, and the partition divides the gap between the two helical heat exchange plates into two spirals. Shaped cold and hot channels, the upper and lower ends of the cold and hot channels are blocked, and the inner and outer screw ends of the cold and hot channels are respectively connected to the inlet and outlet of the cold and hot media. The two spiral heat exchange plates and the partition are made of three plates, and the inner spiral ends of the two spiral heat exchange plates are welded to the partition respectively. [0003] Since the inner helical ends of the two helical heat exchange plates are welded to the partition, the stress at their joints is high, and they are easily damaged under the action of mediu...

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is that the welding place between the spiral heat exchange plate and the partition plate of the existing spiral plate heat exchanger has a large stress, is easy to be damaged, easy to leak, and has a high manufacturing cost.

Images