Water heater

Abstract

The invention relates to a water heater with a flexible inner container. The water heater comprises an inner container, a thermal insulation layer, a heating pipe, a water inlet pipe and a water outlet pipe, the thermal insulation layer is arranged outside the inner container, the heating pipe is arranged in the inner container, the water inlet pipe and the water outlet pipe are communicated with the inside of the inner container, the inner container is the flexible inner container made of flexible materials, and a rigid support is arranged between the flexible inner container and the thermal insulation layer. Internal water capacity of the inner container is increased along with increasing of the temperature of the heating pipe as the inner container of the water heater is made of the flexible materials, cold water heating volume is expanded continuously, overall dimensions of the inner container are changed correspondingly, volume is increased, pressure of the inner container is guaranteed to be maintained constant, mechanical force impact on an external steel structure shell is reduced, further service life of the inner container is prolonged, and electrical safety performance of the water heater is guaranteed.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to a water heater using a flexible inner tank. Background technique [0002] The structure of the existing water storage tanks of water heaters is mainly divided into enamel tanks, stainless steel tanks, crystal tanks, etc. At the current stage of the industry, water heaters with enamel tanks account for more than 90% of the total water storage tanks. , prone to cracking, cracking, peeling and other defects, in addition to the large differences in water quality across the country, uneven distribution of hard water and difficult monitoring, resulting in uncontrollable consumption of anode protection metal in the inner tank, and excessive consumption of anode rods and the use of inner tanks Without timely and effective protection, the inner tank will be corroded and perforated to cause water leakage and cause safety accidents. Especially for the water heater liner protected by ...

AI Technical Summary

Problems solved by technology

[0002] The structure of the existing water storage tanks of water heaters is mainly divided into enamel tanks, stainless steel tanks, crystal tanks, etc. At the current stage of the industry, water heaters with enamel tanks account for more than 90% of the total water storage tanks. , prone to cracking, cracking, peeling and other defects, in addition to the large differences in water quality across the country, uneven distribution of hard water and difficult monitoring, resulting in uncontrollable consumption of anode protection metal in the inner tank, and excessive consumption of anode rods and the use of inner tanks Failure to receive timely and effective protection will lead to corrosion and perforation of the liner and water leakage, causing safety accidents

Especially for the water heater liner protected by the anode rod, the water quality further deteriorates in the water heater, which is far from reaching the national sanitary water standard

This shows that the inner tank water protected by the anode rod cannot be used as drinking water

Therefore, due to the limitations of design ideas, structures and materials, the inner tanks of water heaters that appear on the market cannot achieve the best results in actual use, and this is the main shortcoming of traditional technologies.

In addition, since the heating vessel is made of metal materials, the toughness of the metal material is poor. After the heating vessel expands and contracts for a long time, the metal material will be fatigued, the strength will be weakened or even broken, and leakage will occur, resulting in leakage accidents; in order to improve the strength of the heating vessel , the manufacturer can only increase the thickness of the material, but this will lead to a continuous increase in product costs

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