CN201503135U - Phase change energy storage electric water heater - Google Patents

Abstract

The utility model relates to an electric water heater, in particular to a phase-change energy storage electric water heater, which comprises a shell and an inner liner arranged in the shell. A water inlet, a water outlet, a heating device and a temperature controller are respectively arranged on the inner liner. Phase-change material balls are filled in the inner liner. The utility model has the advantages that since the phase-change material balls are used to absorb and release great amount of latent heat energy to keep the water temperature, the electric energy is saved, the heat preservation effect is good, the water temperature is prevented from being dropped too fast, the repetitious heating is avoided and the energy consumption is reduced.

Description

Phase change energy storage electric water heater

technical field

The utility model relates to an electric water heater, in particular to a phase change energy storage electric water heater.

Background technique

At present, ordinary electric water heaters on the market are generally heated by metal heating tube devices. This heating device consumes a lot of energy and is prone to leakage. Carbon fiber heating tubes are a new type of environmentally friendly and energy-saving heating tubes. Recently, they have begun to be used. In the fields of electric heating drinking water, civil hot water and industrial hot water, etc., it is used as a heating device for electric water heaters, water boilers and other products. At present, electric water heaters and water boiler products that use carbon fiber heating tubes as heating devices generally pass through The medium heats the water in the container, and its carbon fiber heat is generally installed outside the liquid without direct contact with the liquid. It heats the water in the heat container through medium conduction, which will cause a certain amount of heat loss and the liquid cannot fully absorb it. The heat energy emitted by the carbon fiber heating tube. In addition, there are some electric water heaters and water boilers that use carbon fiber heating tubes. The carbon fiber heating tubes are directly put into the liquid from the upper part of the container. The carbon fiber heating tubes are in direct contact with the liquid, so that the heat generated by the carbon fiber heating tubes can be directly absorbed by the water. However, when heating, the water in the container must be filled, otherwise there will be empty heating, long use time, and uneasy factors such as electric leakage. Moreover, this structure is heated from the top, which is not conducive to the sensing and convection of water heat.

To improve the above-mentioned structural deficiencies, such as the name of a utility model announced by the China Patent Office is: a carbon fiber heating tube sealing connection structure, the patent number is: 200720055122.6, and its structure is: including a carbon fiber heating tube and a sealing connection piece. The sealing connecting piece and the carbon fiber heating tube are socketed at the connecting part of the power line and the heating fiber, and the sealing connecting piece is composed of a hollow nut, a high temperature resistant sealing gasket, a hollow screw, and a high temperature resistant sealing gasket. But there are still imperfections: after heating, the water is easy to cool down quickly, especially in winter, the cooling speed is fast, and it often needs to be reheated, resulting in a large amount of energy consumption.

Utility model content

The purpose of the utility model is to overcome the disadvantages of the above-mentioned structure, and provide a phase change energy storage electric water heater which saves electric energy and has good heat preservation effect.

The utility model is realized in the following manner: it includes a shell, and an inner tank arranged in the outer shell, the inner tank is respectively provided with a water inlet, a water outlet, a heating device and a temperature controller, and the inner tank is filled with a phase change material ball.

A filling port is also arranged on the side wall of the liner.

The inner tank is provided with a partition with through holes, and the partition is divided into a heat storage area and a heating area in the inner tank.

The partitions are arranged at the lower end of the inner tank, and the upper end of the inner tank is a heat storage area.

The partitions are arranged at the upper and lower ends of the inner tank, and the middle section of the inner tank is a heat storage area.

The heat storage area accounts for one-third to two-thirds of the total volume of the inner container.

The heat storage area is filled with phase change material balls, and the above heat storage area is connected to the filling port.

The heating device is an electric heating tube, and the outer surface of the electric heating tube is covered with an outer cover.

The heating device is a working fluid coil.

The beneficial effect of the utility model is: use the phase change material ball to attract a large amount of latent heat energy and release a large amount of latent heat energy to maintain the temperature of the water, save electric energy and have a good heat preservation effect, reduce the excessive cooling of the water temperature, and avoid repeated heating while reducing energy consumption

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic structural diagram of the second embodiment.

Fig. 3 is a schematic structural diagram of the third embodiment.

Fig. 4 is a schematic structural diagram of the fourth embodiment.

Fig. 5 is a schematic structural diagram of the fifth embodiment.

Fig. 6 is a schematic structural diagram of the sixth embodiment.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is specifically further described.

As shown in the figure, it includes an outer shell and an inner tank 7 arranged in the outer shell. The inner tank 7 is respectively provided with a water inlet 1, a water outlet 2, a heating device and a temperature controller 8, and the inner tank 7 is filled with corresponding Change material ball6.

A filling port 5 is also arranged on the side wall of the inner container 7 .

The inner tank 7 is provided with a partition 3 with a through hole, and the partition 3 is divided into a heat storage area and a heating area in the inner tank 7 .

The partition plate 3 is arranged at the lower end of the inner tank 7, and the upper end of the inner tank 7 is a heat storage area.

The partitions 3 are arranged at the upper and lower ends of the inner tank 7, and the middle section of the inner tank 7 is a heat storage area.

The heat storage area accounts for one-third to two-thirds of the total volume of the inner tank 7 .

The heat storage area is filled with phase change material balls 6 , and the above heat storage area is connected to the filling port 5 .

The heating device is an electric heating tube 4 , and the outer surface of the electric heating tube 4 is covered with an outer cover 3 .

The heating device is a working fluid coil 401 .

Working principle: the water in the inner tank 7 is heated by the electric heater 4 or the working medium coil 401, and the phase change material ball 6 is heated by using the heat transfer property of the water, and the phase change material ball 6 stores heat. When the temperature is controlled When the device 8 reaches the temperature requirement, it stops the heating work.

When water outlet 2 began to discharge water, water inlet 1 cold water entered, and along with the reduction of temperature in inner bag 7, phase-change material ball 6 began to release the heat stored, and kept the temperature of water.

The phase change material ball 6 is a material that can undergo phase change at a certain temperature and can provide a large latent heat energy; when the ambient temperature is lower than the phase change temperature, the phase change material ball 6 absorbs a large amount of heat energy and undergoes a liquefaction phase change ; When the ambient temperature is lower than the phase transition temperature, the phase change material ball 6 dissipates heat and undergoes a solidification phase transition, releasing a large amount of latent heat energy.

Claims (9)

1. A phase-change energy storage electric water heater, comprising a shell, and an inner tank (7) arranged in the outer shell, the inner tank (7) is respectively provided with a water inlet (1), a water outlet (2), a heating device and a warming device. A controller (8), characterized in that: the inner tank (7) is filled with phase change material balls (6). 2. The phase-change energy storage electric water heater according to claim 1, characterized in that: a filling port (5) is also provided on the side wall of the inner tank (7). 3. The phase-change energy storage electric water heater according to claim 1, characterized in that: the inner tank (7) is provided with a partition (3), the partition (3) has a through hole, and the partition ( 3) The inner tank (7) is divided into a heat storage area and a heating area. 4. The phase-change energy storage electric water heater according to claim 3, characterized in that: the partition (3) is arranged at the lower end of the inner tank (7), and the upper end of the inner tank (7) is used for heat storage district. 5. The phase-change energy storage electric water heater according to claim 3, characterized in that: the partitions (3) are arranged at the upper and lower ends of the inner tank (7), and the middle section of the inner tank (7) is the storage tank. hot zone. 6. The phase-change energy storage electric water heater according to claim 4 or 5, characterized in that: the heat storage area accounts for one-third to two-thirds of the total volume of the inner tank (7). 7. The phase change energy storage electric water heater according to claim 6, characterized in that: the heat storage area is filled with phase change material balls (6), and the heat storage area is connected to the filling port (5). 8. The phase change energy storage electric water heater according to claim 1, characterized in that: the heating device is an electric heating tube (4), and the outer surface of the electric heating tube (4) is covered with a cover (3). 9. The phase change energy storage electric water heater according to claim 1, characterized in that: the heating device is a working fluid coil (401).

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