Inner container of water heater

Abstract

The invention relates to the technical field of water heaters, and in particular relates to an inner container of a water heater. The inner container of the water heater consists of an outer layer of plastic and an inner layer of plastic; the outer layer of plastic is 1-5mm thick, and the inner layer of plastic is 0.5-3mm thick; and the inner layer of plastic is made from the material according with drinking water standard, and has the suitable temperature ranging from minus 30 DEG C to 120 DEG C. According to the invention, the inner container of the water heater consists of the outer layer of plastic and the inner layer of plastic; the inner layer is made from high-temperature-resistant PP (propene polymer) and other materials which accord with the drinking water standard; the inner layer of material is resistant to high temperature of 95-120 DEG C, is smooth in surface, is difficult in scaling, is acid-proof and alkali-proof, has long service life and has no pollution; and the outer layer of plastic is made from high-temperature resistant, high-intensity and good-dimension-stability composite modified material; the two kinds of materials are molded one time through a hollow blow molding processing technology, not only is the problem that a weld joint of a stainless steel inner container corrodes a leakage liquid overcome, but also the secondary pollution caused by adding various kinds of modified agents in order to improve the thermal resistant temperature of a common plastic inner container is overcome.

Description

[0001] technical field [0002] The invention relates to the technical field of water heaters, in particular to a water heater liner. Background technique [0003] At present, solar water heaters or electric water heaters commonly used in the market mainly include stainless steel inner tanks, enamel inner tanks, and single-layer plastic inner tanks. The manufacturing process of the stainless steel liner is complicated, the acid and alkali resistance is poor, easy to scale, the welding seam is long, the welding part is easily oxidized and corroded, and leaks when heated; the processing process of the enamel liner is complicated, the technical requirements are high, the brittleness is large, and the collision and vibration are prone to phosphorus explosion. Phenomenon, enamel is easy to fall off in hot water, causing pollution; ordinary plastic liner materials have poor heat resistance, are easy to deform, contain modified materials, and are prone to water pollution. Co...

AI Technical Summary

Problems solved by technology

[0004]In order to solve the problems of existing water heater inner tanks such as oxidative corrosion of stainless steel water heater inner tank welds, enamel inner tank enamel peeling off, common plastic inner tank additives are easy to pollute water , the present invention provides a double-layer plastic integrated water heater liner with good corrosion resistance, good heat resistance, no deformation, and no water pollution.

Images