Thermal-insulation water tank for water heater

Abstract

The invention discloses a thermal-insulation water tank for a water heater. The thermal-insulation water tank for the water heater structurally comprises a casing, a thermal insulation layer and an inner container sequentially from outside to inside, wherein a heat exchanger is arranged in the inner container and comprises a stainless steel corrugated pipe, one end of the stainless steel corrugated pipe is connected with a water inlet, and the other end of the stainless steel corrugated pipe is connected with a water outlet; an exhaust hole and a liquid supplement port are formed in the upper part of the casing and communicated with an inner cavity of the inner container; a liquid discharge hole is formed in the lower part of the casing and communicated with the inner cavity of the inner container; a standby water inlet and a standby water outlet are formed in the casing and both communicated with the inner cavity of the inner container. The inner container can be made of a non-food-grade material, the production cost is reduced, and the yield of a product is increased. The quality of flow-out water is better, energy is saved, the production cost of the water tank is substantially reduced, the water tank is economical and practical, flow-out water is fresh, nitrosamine cannot be generated, and the water tank is safer to use and wider in application.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to an insulated water tank for a water heater. Background technique [0002] Existing heat preservation water tanks generally only have one water inlet and outlet. Normal temperature water enters the interior of the heat preservation water tank from the water inlet, and is heated by a heating element to become hot water and flows out from the same water inlet and outlet for use. Repeated heating and boiling will easily produce bacteria and water quality corruption. The harmful substance "nitrosamine" in the water will increase with the prolongation of use time and repeated boiling, which will cause serious harm to the user's body. Secondly, the water outlet is 10-30 mm higher than the bottom of the water tank, and 10%-20% of the heated water is wasted because it is not used, and it cannot be cleaned thoroughly. [0003] Because the water inside the water tank needs to be used...

AI Technical Summary

Problems solved by technology

[0002]Existing thermal water tanks generally have only one water inlet and outlet. Normal temperature water enters the interior of the thermal insulation water tank from the water inlet, and is heated by the heating element to become hot water and flows out from the same water inlet and outlet for use. First of all, this kind of water storage tank stores "a pool of stagnant water". Due to repeated heating and boiling, it is very easy to produce bacteria and water quality corruption. The content will continue to increase, which will cause serious harm to the user's body

Secondly, the water outlet is 10-30mm higher than the bottom of the water tank, and 10%-20% of the heated water is wasted because it is not used, and it cannot be cleaned thoroughly

[0003]Because the water inside the water tank needs to be used, the national standard requires that the liner of the water tank must be made of food-grade materials, and the production cost is very high

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