Header pressure heat exchanger

Abstract

The utility model relates to a pressure-bearing header heat exchanger, which utilizes heating water for heat exchange to obtain hot tap water. Including: two headers, the header includes header shell, orifice plate and cover plate. Two or more tap water heat-absorbing pipes are fixedly connected between the two headers. The tap water heat-absorbing pipes are pierced with heating pipes. The heating pipes are connected. One end of the heating pipes is connected to the The heating water inlet is connected to the heating water outlet at the other end; one or more water blocking plates are arranged in one of the headers, and one or more water blocking plates are arranged in the other header. There are flanges around the water blocking plate, one side is welded on the orifice plate, and the other side is stuck or welded on the header shell. There are flanges around the cover plate, and the edges on both sides of the orifice plate are folded outwards, and the outwards folded edges on both sides of the orifice plate are welded and connected with the edge of the header shell plate. In the invention, the welded seam of the joint of the tube plate of the header shell is under pressure, the weld seam does not leak water, and the countercurrent heat exchange can also be realized.

Description

technical field [0001] The invention relates to a heating heat exchanger for bathing in tap water, which is installed and used on heating pipelines of civilian households and uses hot water for heat exchange to obtain heat, and in particular relates to a header pressure-bearing heat exchanger. Background technique [0002] The applicant applied on June 10, 2008 and was authorized on June 3, 2009. After the patented product with the patent number CN200820024167.1 and the utility model name "Counterflow Heat Exchanger for Header Split Heat Storage" was put on the market, Practice has proved that there are obvious deficiencies and defects; it cannot be installed vertically; due to the limited storage of hot water in static state, it needs to wait for heating before use during bathing, and there are defects such as the inability to continuously produce hot water above 38°C for bathing round after round. dissatisfied. The patented tap water heat-absorbing pipe has a large diamet...

AI Technical Summary

Problems solved by technology

[0006] The invention mainly solves the problem of no pressure bearing, water leakage from the weld seam, or failure to install vertically at the welded joint of the tube plate of the header shell.

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