Hot water supply tank

Patent metadata

Field	Value
Publication number	US-11940180-B2
Application number	US-202017424971-A
Country	US
Kind code	B2
Filing date	Jan 22, 2020
Priority date	Jan 25, 2019
Publication date	Mar 26, 2024
Grant date	Mar 26, 2024

Abstract

Provided is a hot water supply tank including: a case forming an appearance of the hot water supply tank; a heating container accommodating a fluid and having an inner side treated with anticorrosive; a heater installed on an outer side of the heating container and transferring heat to the fluid; and a heat insulator interposed between the case and the heater, wherein in a predetermined volume of the heating container, a ratio at which a performance of the heater to transfer heat (hereinafter, heat transfer performance) is maximized (hereinafter, optimum ratio) among the ratios of side height to bottom diameter of the heating container (hereinafter, aspect ratios) is determined by whether the heater is installed on the bottom as well as side of the heating container, and determined based on an area of the heating container occupied by the heater (hereinafter, heat transfer area).

First claim

The invention claimed is:

1. A hot water supply tank comprising:
a case forming an appearance of the hot water supply tank;
a heating container accommodating a fluid and having an inner side treated with anticorrosive;
a heater installed on at least a side of the heating container and transferring heat to the fluid, the heating container being configured to have a first ratio of a side height to a bottom diameter of the heating container to maximize a heat transfer performance of the heater, and the heating container including a heat transfer area occupied by the heater; and
a heat insulator interposed between the case and the heater,
wherein the first ratio of the heating container has a value inversely proportional to the heat transfer area when the heat transfer area is less than a first area,
wherein the first ratio of the heating container has a value proportional to the heat transfer area when the heat transfer area is greater than or equal to the first area,
wherein the first ratio has a value of 4 to 9 and the heat transfer area ranges from 0.6 to 1.8 m 2 ,
wherein in a case that a volume of the heating; container ranges from 180 to 220 L and the heater is installed only on the side of the heating container, the first has a value proportional to the heat transfer area when the heat transfer area is more than or equal to 1.2 m 2 , and
wherein in a case that the volume of the heating container ranges from 180 to 220 L and the heater is installed on a bottom as well as the side of the heating container, the first ratio has a value inversely proportional to the heat transfer area when the heat transfer area is less than or equal to 1.2 m 2 .

2. The hot water supply tank of claim 1 , wherein in the predetermined heat transfer area, the heat transfer performance corresponding to the first ratio is higher when the heater is installed on the bottom as well as side of the heating container than when the heater is installed only on the side of the heating container.

3. The hot water supply tank of claim 1 , wherein the heat transfer performance corresponding to the first ratio is higher as the heat transfer area increases.

4. The hot water supply tank of claim 1 , wherein the heater is a heat exchanger in which a refrigerant flows.

Assignees

• Lg Electronics Inc

Inventors

• Park Heewoong
• Shin Jeongseob

Classifications

• F24H1/181 Primary

  Construction of the tank · CPC title

• B65D88/748

  for tank containers · CPC title

• F24D19/0092

  Devices for preventing or removing corrosion, slime or scale · CPC title

• F24H1/185

  using electric energy supply (F24H1/201 takes precedence) · CPC title

• F24H4/04

  Storage heaters · CPC title