TW202035928A - Energy-saving heat storage electric water heater for heating water based on number of people capable of supplying hot water with a more stable temperature for longer use time - Google Patents

Abstract

Provided is an energy-saving heat storage electric water heater for heating water based on number of people. In a heat storage cylinder, there are multiple heaters arranged from low to high and disposed at intervals, and each heater is covered in a heating guide cover. The heating guide cover at the relatively low location can be used to guide the hot water therein to flow into the upward adjacent heating guide cover, so as to make use of the heat rising and cool descending principle of water and control the heaters of different heights to perform local heating on the water area above the height thereby obtaining the distribution of different amounts of hot water. In addition, the water in the range of the heating guide cover can be heated more quickly, and the heating guide cover guides the flow upward in sequence, so that the water of relatively high location and relatively low temperature in the heat storage cylinder will naturally flow into the heating guide cover at the corresponding location for being mixed therewith. As a result, not only the amount of water to be heated can be controlled according to the number of people using hot water to achieve the purpose of energy saving, but also the heated water is finally guided to a hot water outlet near the heat storage cylinder so as to supply hot water with a more stable temperature for longer use time.

Description

Energy-saving heat storage electric water heater capable of heating water according to the number of people

The present invention relates to the heat storage cylinder of an electric water heater is provided with several heating guide hoods each equipped with a heater at intervals of different heights, and each relatively low heating guide hood can guide hot water to it. In the heating guide hood adjacent to the upper part, by heating the water in areas above different heights, the supply and demand of different hot water can be obtained to achieve the purpose of energy saving.

The general heat storage type electric water heater includes a heat storage tube with a cold water inlet and a hot water outlet. A heater is installed in the heat storage tube, and the heat storage tube is usually kept in a state of full water before use. In the preset time period, the water in the cylinder is first heated to the predetermined water temperature, that is, the water in the heat storage cylinder will be filled with hot water before it is used to prepare for continuous hot water use; at the same time, when the hot water is When it is used out, cold water will also be constantly added to cause the temperature of the water in the cylinder to drop. At this time, the heater will also start to heat, thereby replenishing the continuously lost hot water.

Therefore, when the continuous use of hot water is not large, the temperature of the hot water usually does not change much. However, if the continuous use of hot water is too large, the heating speed of the heater is not enough to cope with it. The speed at which hot water is supplied, and the cold water will also mix with the original hot water when entering the cylinder, which will cause the temperature of the hot water to be supplied to drop rapidly, resulting in a bad experience for hot water users, especially in winter Season.

Therefore, thermal storage electric water heaters usually decide which capacity should be used based on the number of continuous users in a specific period of time when a large amount of hot water is used (for example, bathing period) For small heat storage cartridges, for example, on the premise that the water temperature is set to 65℃, one or two people should choose a 40~50 liter electric water heater when taking a bath, and three to four people should choose a 60~80 liter electric water heater It is advisable to choose an electric water heater with a larger capacity if there are more people, such as five to six people, such as an electric water heater of 120 liters or more; therefore, for families with children who will go home during holidays, or mini-homestays As far as the industry is concerned, it is necessary to consider the use of larger capacity thermal storage electric water heaters in order to cope with the demand for large amounts of hot water when the number of people is large. However, the electric water heaters with larger capacity will of course consume relatively large electricity, but When the children of the aforementioned families are away from home and only a couple are left, or when the number of people staying in a homestay is small, although the demand for hot water consumption is relatively small, large-capacity storage electric water heaters will still cause a lot of Heating water will also cause unnecessary waste of electricity and energy.

The reason is that in order to improve the aforementioned known small-capacity electric water heaters that cannot cope with the use of large amounts of hot water when the number of people is large, and large-capacity electric water heaters cause waste of electric energy when the number of users is small, the present invention provides a Large-capacity storage electric water heater, so that the heat storage cylinder is arranged from low to high intervals with an array of heating guide covers with heaters inside, and the relatively low heating guide covers can lead hot water to the top In the adjacent heating guide hood, the water area above its height can be heated by different height heaters to obtain different supply and demand of hot water. In addition, the water in the heating guide hood can be quickly heated and then directed upwards. The relatively low-temperature water at the relative height in the cylinder will also flow into the heating guide hood at the opposite side along the water flow, so that the temperature of the hot water supplied is more stable, the continuous use time is longer, and energy saving is achieved. The purpose of electricity.

The technical solution adopted by the present invention to solve its technical problems is: it includes a heat storage tube with hot water outlet and cold water inlet at the upper and lower parts respectively, so that the inside of the heat storage tube is lowered The high-interval installation arrays are each covered by a heater in a heating guide cover, and each relatively low heating guide cover can guide hot water to the adjacent heating guide cover above it.

In the above solution, each heating guide hood is provided with a guide portion, and the guide portion of each relatively low heating guide hood extends above and below the heating guide hood.

In the above solution, the positions of the guide portions of the heating guide hoods are arranged oppositely.

In the above solution, the positions of the guide portions of the heating guide covers are staggered.

In the above solution, the guide portion of the highest heating guide cover is close to the hot water outlet of the heat storage cylinder.

In the above solution, the cold water inlet of the heat storage cylinder is located near the lowest heating guide cover.

Therefore, through the above-mentioned electric water heater of the present invention, a number of heaters at different heights are installed in the heat storage cylinder, and each heater is covered in the heating guide cover, so that any water in the guide cover can be heated. It can be heated quickly and continuously divert upward. At the same time, the relatively low temperature water around each heating guide cover will also be mixed in downstream, and then the heaters at different heights are determined according to the number of users, so that only the relative heat The water required by the water is heated to achieve the purpose of energy saving and rapid heating.

1‧‧‧Heat storage cartridge

11‧‧‧Cold water inlet

12‧‧‧Hot water outlet

2‧‧‧Heating guide cover

21‧‧‧Diversion Department

3‧‧‧Heater

The present invention will be further described below in conjunction with the drawings and embodiments.

Fig. 1 is a schematic diagram of the first embodiment of the present invention.

Figure 2 is a schematic diagram of the second embodiment of the present invention.

Please refer to Figure 1, the thermal storage electric water heater of the present invention includes a heat storage cylinder 1, and a hot water outlet 12 is provided above the heat storage cylinder 1, and a cold water inlet is provided below the heat storage cylinder 1. Nozzle 11, and an array of heaters 3 are installed in the heat storage cylinder 1. At the same time, the array of heaters 3 are arranged in the heat storage cylinder 1 from low to high intervals, and the heaters 3 of each group are set Each is covered in a heating guide cover 2, and at the same time, a guide part 21 is provided above each heating guide cover 2, and the guide part 21 is made to extend above and below the heating guide cover 2, and the highest point The guide portion 21 of the heating guide cover 2 is close to the hot water outlet 12, so that any heater 3 can heat the water in the guide cover 2 quickly, and at the same time pass the heated hot water through The heating guide cover 2 and its guide portion 21 are guided upward to the upper part of the heat storage tank 1 in order.

Therefore, the characteristic principle of the heat rise and cold drop of the permeated water, when the heater 3 at any height heats the water, the water area in the cylinder above its height will be heated to the preset temperature and pass through The temperature detection is maintained at the preset temperature, that is, the higher the heater 3, only a relatively small volume of water is heated, while the lower the heater 3, the relatively large volume The operator can decide where to use the heater 3 for heating according to the number of people using hot water and the amount of hot water that should be supplied and demanded. For example, when the highest heater 3 is used for heating, The water area to be heated is the smallest volume of water above the height, and the amount of hot water obtained is relatively minimal, so it can be immediately supplied to the needs of 1 to 2 people; on the contrary, when the lowest heater 3 is used for heating, it is heated The area of water is the largest volume of water above its height, and the amount of hot water obtained is relatively the most, so it can be immediately supplied to the needs of 6 to 8 people; the rest can be deduced by analogy.

Therefore, the thermal storage electric water heater of the present invention can be If the number is large, select the heater 3 at a suitable height for heating, and obtain a suitable amount of hot water supply. When the number of people using hot water is small, it is still necessary to heat all the water in the heat storage cylinder 1, resulting in Unnecessary waste of electricity or energy, or the lack of capacity of the heat storage cartridge 1 makes it impossible to immediately supply more hot water to more people. For families or businesses with large changes in the number of users, there is no need to worry about electricity The water heater will have the doubt that the volume is too large and cause waste, or the volume is too small and insufficient, and thus achieve the purpose of energy saving and electricity saving.

At the same time, no matter where the height of the heater 3 is when the water in the heating guide cover 2 is heated, the water in the cover can be quickly heated, and then along the guide cover and its guide 21 , Lead to the heating guide cover 2 adjacent to the upper part, and then to the upper part of the heat storage cylinder 1 in sequence. At the same time, because of the water temperature in the heating guide cover 2 and above the heating guide cover 2, due to heating With the function of diversion, the internal water temperature will be relatively higher than the surrounding water temperature, so the relatively low temperature water around each heating guide cover 2 will be mixed into the heating guide cover 2 along the action of the water flow. In turn, the water temperature in the entire heated water area can be more evenly distributed, making the temperature of the hot water supplied more stable.

Furthermore, since the guide portion 21 of the heating guide cover 2 at the highest point is close to the hot water outlet 12, even the heated hot water can be directly supplied from the hot water outlet. When the hot water is supplied continuously, the temperature drop effect generated is minimized, so that the hot water supplied can last longer.

In addition, the guide portions 21 on the heating guide covers 2 are arranged in corresponding positions. The heated water will flow upwards quickly, and the water will quickly pass through the heater 3, making the time for the water to be heated instead Shorter; therefore, as shown in Figure 2, the guide portions 21 on each heating guide cover 2 are arranged in staggered positions, so that the path of the water through the heater 3 is increased to prolong the heating time, thereby increasing the water heating s efficiency.

Secondly, when heating water above different heights, only the single heater 3 at that height is used to heat water, but it is also possible to start two or more heaters 3 at the same time according to the requirements of continuous hot water supply and demand. The high-power heating allows the storage electric water heater to have a function similar to instantaneous heating, so that it can better cope with different needs.

In addition, the cold water inlet 11 shown in Figure 1 or Figure 2 is located on the left side of the heat storage cylinder 1, relatively far from the lowest heating guide cover 2, so the cold water inlet 11 can also be moved closer to the lowest The heating guide hood 2 at or below, so that the incoming cold water can be heated in the first time.

1‧‧‧Heat storage cartridge

11‧‧‧Cold water inlet

12‧‧‧Hot water outlet

2‧‧‧Heating guide cover

21‧‧‧Diversion Department

3‧‧‧Heater

Claims (6)

An energy-saving heat storage electric water heater that heats water according to the number of people. It includes a heat storage tube with a hot water outlet and a cold water inlet at the top and bottom, and an array is installed in the heat storage tube from low to high intervals. The heaters make each heater be housed in a heating guide cover that can conduct hot water upwards, and each relatively low heating guide can guide hot water to the heating guide next to it. Inside. According to claim 1, the energy-saving thermal storage electric water heater that heats water according to the number of people, wherein each heating guide cover is provided with a diversion part, and the guide part of each relatively low heating guide cover is extended to the upper and adjacent Inside the heating guide hood. According to claim 1, the energy-saving thermal storage electric water heater that heats water according to the number of people, wherein the guide parts on each heating guide cover are arranged at opposite positions. According to claim 1, the energy-saving thermal storage electric water heater that heats water according to the number of people, wherein the guide portions on each heating guide cover are arranged in staggered positions. According to claim 1, the energy-saving heat storage electric water heater that heats water according to the number of people, wherein the diversion part of the highest heating guide cover is close to the hot water outlet of the heat storage cylinder. According to claim 1, the energy-saving heat storage electric water heater that heats water according to the number of people, wherein the cold water inlet of the heat storage cylinder is set near the lowest heating guide cover.

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