Heating pipe with internal and external heating function

Abstract

The invention discloses a heating pipe with an internal and external heating function. The heating pipe comprises a glass pipe and end covers positioned at two ends of the glass pipe, wherein the two end covers are fixed by locking bolts and nuts; the end covers are provided with grooves matched with the glass pipe; the glass pipe comprises an inner pipe and an outer pipe; a gap is formed between the inner pipe and the outer pipe, so that a water flow channel is formed; water-passing holes communicated with the water flow channel are formed in the two end covers; heating sheets are arranged on the outer surface of the outer pipe; the heating sheets are arc-shaped and are clung to the outer wall of the outer pipe; and a nano resistance heating film is arranged on the inner surface of the inner pipe. The heating pipe has the advantages of quickness for water flow medium heating, uniformity for heating, high water discharge, convenience for assembly, low cost and the like.

Description

technical field [0001] The invention relates to a heating tube with internal and external heating. Background technique [0002] At present, household electric water heating devices are used more and more widely, such as household appliances such as kettles, electric water heaters, water dispensers, and coffee machines. However, most of the currently used electric water heating devices use a single glass tube with a heating wire inside the glass tube for direct heating through the heating wire. This heating method makes the resistance heating wire directly contact with the water, which is easy to pollute the water. , there are problems such as slow heating speed, low safety, fast heating of water close to the heating wire and slow heating of water far away from the heating wire, resulting in uneven water temperature, and difficulty in precise control under heat preservation conditions. Therefore, it is necessary to improve and optimize the existing heating pipe structure. ...

AI Technical Summary

Problems solved by technology

However, most of the currently used electric water heating devices use a single glass tube with a heating wire inside the glass tube for direct heating through the heating wire. This heating method makes the resistance heating wire directly contact with the water, which is easy to pollute the water. , there are problems such as slow heating speed, low safety, fast heating of water close to the heating wire and slow heating of water far away from the heating wire, resulting in uneven water temperature, and difficulty in precise control under heat preservation conditions, etc.

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