Flange used for heating tube of plastic inner container of water heater

Abstract

The invention discloses a flange used for a heating tube of a plastic inner container of a water heater. The flange comprises a cylindrical part and a conical part connected with the cylindrical part. An inner cylindrical hole is formed in the cylindrical part and matched with an outer circle of a cylindrical sleeve protruding outwards from the end of a spherical surface end cover of the inner container of the water heater. The surface of the inner side of the conical part is in contact fit with a water heater inner container connecting surface. Flange connecting holes are formed in the positions, close to the edge, of the outer end surface of the cylindrical part. The flange is connected with an outer heating structure through the flange connecting holes and bolts. The flange used for the heating tube of the plastic inner container of the water heater is compact in structure, good in connecting strength, convenient to use, install and replace, and wide in application range. By being connected with multiple types of heating structures, reliable connection and sealing with an inner container shell are achieved, the strength is high, deformation, leakage and seepage are reduced, and use is safe and reliable.

Description

technical field [0001] The invention relates to the field of household water heaters, in particular to a flange for a plastic liner heating pipe of a water heater. Background technique [0002] The plastic liner of the water heater in the prior art has a variety of structures and installation methods. It is connected to other pipe fittings through the external connection port. , thermal sensors, etc. are connected in different positions and ways, and the main problems in the connection structure of the prior art are: due to the problems of the fixed position of the water inlet and outlet with the external water pipe and the fixed position of the heater, and the strength and fixed form of the fixed position, the connection parts are prone to water leakage or water seepage , low structural strength, extremely poor pressure bearing capacity, severe deformation under the action of cold and hot water, and prone to safety hazards. Once a problem occurs, the serious situation is t...

AI Technical Summary

Problems solved by technology

[0002] The plastic liner of the water heater in the prior art has a variety of structures and installation methods. It is connected to other pipe fittings through the external connection port. , thermal sensors, etc. are connected in different positions and ways, and the main problems in the connection structure of the prior art are: due to the problems of the fixed position of the water inlet and outlet with the external water pipe and the fixed position of the heater, and the strength and fixed form of the fixed position, the connection parts are prone to water leakage or water seepage , low structural strength, extremely poor pressure bearing capacity, severe deformation under the action of cold and hot water, prone to safety hazards

Once a problem occurs, the serious situation is to replace all the inner tanks, which is inconvenient to disassemble

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