Water tank seal component and water heater using same

Abstract

The invention relates to a water tank seal component and a water heater using the same and belongs to the technical field of water heaters. The water tank seal component comprises a tube seat which is welded on the outside of a penetration hole of a water tank cylinder of the water heater, the tube seat and the water tank cylinder are made of the same materials, and the penetration hole is provided with a circular inner flange. An inner threaded hole with the drift diameter larger than the diameter of the penetration hole is formed in the tube seat. A seal plug with a central through hole is arranged in the tube seat and comprises an outer taper and a lining ring, wherein the small end of the outer taper is outward, the lining ring extends into the penetration hole from the through hole, and a round tube stretching into a barrel of a water tank of the water heater is inserted into the through hole. By means of the water tank seal component and the water heater using the same, radial and axial force components are produced by the outer taper surface of the seal plug, positive pressure between a seal plug inner hole and the outer circle surface of the round tube as well as between the inner end surface of the seal plug and the outer surface of the water tank cylinder is formed, and accordingly the reliable radial and axial seal is guaranteed; moreover, the circular tube vibration is completely separated from the water tank while electrochemical corrosion is eradicated, and accordingly, an ideal vibration absorption effect is provided.

Description

technical field [0001] The invention relates to a water tank sealing assembly, and also relates to a water heater adopting the structure, belonging to the technical field of water heaters. Background technique [0002] When the extended pipes such as the refrigerant of the water heater tank extend out of the inner tank, they must be sealed and required to be anti-corrosion. According to the applicant's understanding, the existing technology basically adopts the structure of direct welding between the protruding pipeline and the end face of the cylinder tube seat on the inner tank. This structure is not only easy to cause leakage gaps due to external vibration of the pipeline, but also the weld seam is easy to be corroded, thus Exacerbate the leak. [0003] The search found that the Chinese patent application number 201320622203.5 discloses a sealing connection structure between a heating pipe and a flange and a water heater using this structure. The structure is provided wi...

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Problems solved by technology

According to the applicant's understanding, the existing technology basically adopts the structure of direct welding between the protruding pipeline and the end face of the cylinder tube seat on the inner tank. This structure is not only easy to cause leakage gaps due to external vibration of the pipeline, but also the weld seam is easy to be corroded, thus Exacerbate the leak

[0003] The search found that the Chinese patent application number 201320622203.5 discloses a sealing connection structure between a heating pipe and a flange and a water heater using this structure. The structure is provided with a connecting head at the end of the heating pipe, and the connecting head is fastened by threads The method is installed on the flange and forms a seal with the flange; although this technical solution provides a flexible connection method between the heating pipe of the water heater and the flange, it is still used in the pressurized heat pump (also known as air energy) ) water heater, due to the vibration of the refrigerant outer pipe, etc., it is still prone to leakage, and electrochemical corrosion is unavoidable due to direct contact between different material components with different electrode potentials

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