CN202581799U - Phase-change thermal-storage type electric water heater - Google Patents

Abstract

The utility model discloses a phase-change thermal-storage type electric water heater which comprises a water heater shell. Thermal insulation materials are disposed in the water heater shell. A plurality of containers are arranged in the water heater shell. The containers are respectively filled with phase-change materials. A heat exchanger tube is embedded in the phase-change materials in each container. One end of the heat exchanger tube is connected with a water inlet pipe. The other end of the heat exchanger tube is connected with a water outlet pipe. A water return pipe is connected between the water inlet pipe and the water outlet pipe. A circulating pump and a water container are arranged on the water return pipe. An electric heater is installed in the water container. The circulating pump and the electric heater are respectively in electric connection with a controller. The controller is fixed on a shell of the electric heater. Through utilization of high heat accumulation property of the phase-change materials, the phase-change thermal-storage type electric water heater can accumulate heat in advance, can supply hot water for users anytime and anywhere and is large in hot water output, safe and reliable. Moreover, the hot water can be kept for a long time.

Description

A phase change heat storage electric water heater

technical field

The utility model relates to the field of water heaters, in particular to a phase change material heat storage electric water heater.

Background technique

The existing phase-change material thermal storage electric water heater has a relatively large internal volume due to the demand for use. However, if the internal volume of the water heater is too large, it is easy to cause excessive deposition of the phase-change material, thereby affecting the overall performance of the water heater.

Utility model content

Aiming at the shortcomings of the above-mentioned prior art, the purpose of this utility model is to provide a safe and reliable phase-change thermal storage electric water heater with long hot water duration and large hot water output.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A phase-change heat storage electric water heater, comprising a water heater shell, the water heater shell is provided with insulation material, the water heater shell contains several containers, and the several containers are respectively filled with phase-change materials, A heat exchange pipe is embedded in the phase change material, one end of the heat exchange pipe is connected to a water inlet pipe, and the other end is connected to a water outlet pipe, and a water return pipe is connected between the water inlet pipe and the water outlet pipe. A circulation pump and a water container are arranged on the water pipe, and an electric heater is installed in the water container. The circulation pump and the electric heater are respectively electrically connected to a controller, and the controller is fixed on the shell of the water heater.

Further, a temperature probe is arranged on the outlet pipe, and the temperature probe is electrically connected to the controller.

Further, the water outlet pipe is also provided with a water flow bottom switch, and the water flow switch is electrically connected to the controller.

Further, a one-way valve is installed on the water inlet pipe, the water outlet pipe and the water return pipe.

The working principle of the utility model is as follows:

When the temperature is lower than the set value, the controller starts the circulation pump and the electric heater, the water circulates in the pipeline and the heat exchanger, transfers the heat to the phase change material and stores it, and the temperature reaches the set value by the circulation pump and electric heater device stops working. When using water, cold water enters the heat exchanger through the water inlet pipe to be heated, and flows out from the water outlet pipe for users to use. Each check valve prevents water from flowing backwards, and the water flow switch can ensure that the circulating pump and electric heater are in non-working state when water is used.

The above technical scheme has the following beneficial effects:

The phase change heat storage electric water heater of the utility model mainly utilizes the high heat storage property of the phase change material, and after heat storage in advance, it can provide users with hot water anytime and anywhere. reliable.

The above description is only an overview of the technical solution of the utility model. In order to understand the technical means of the utility model more clearly and implement it according to the contents of the specification, the patent is described below with preferred embodiments of the utility model and accompanying drawings. Detailed description.

Description of drawings

Fig. 1 is the front view of the utility model.

Detailed ways

Preferred embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings.

Referring to Fig. 1, a phase-change thermal storage electric water heater includes a water heater shell 5, in which an insulating material 6 is arranged, and a plurality of containers 13 are contained in the water heater shell 5, the described Several containers 13 are respectively filled with phase change materials 12, and heat exchange tubes 14 are embedded in the phase change materials 12, one end of the heat exchange tubes 14 is connected with the water inlet pipe 1, and the other end is connected with the water outlet pipe 11, so A water return pipe 2 is connected between the water inlet pipe 1 and the water outlet pipe 11, the water return pipe 2 is provided with a circulation pump 10 and a water container 9, an electric heater 8 is installed in the water container 9, and the circulation The pump 10 and the electric heater 8 are electrically connected to a controller 7 respectively, and the controller 7 is fixed on the shell 5 of the water heater.

Further, a temperature probe 4 is arranged on the outlet pipe 11 , and the temperature probe 4 is electrically connected to the controller 7 .

Further, a water flow switch 15 is also provided on the water outlet pipe 11 , and the water flow switch 15 is electrically connected to the controller 7 .

Further, a one-way valve 3 is installed on the water inlet pipe 1 , the water outlet pipe 11 and the water return pipe 2 .

The embodiments of the present invention have been introduced in detail above. For those of ordinary skill in the art, according to the idea of the embodiments of the present invention, there will be changes in the specific implementation and application range. In summary, this specification The content should not be understood as a limitation to the utility model, and any changes made according to the design idea of the utility model are within the protection scope of the utility model.

Claims (4)

1. A phase-change heat storage electric water heater, comprising a water heater shell (5), in which the water heater shell (5) is provided with an insulating material (6), and in the water heater shell (5), several containers ( 13), the several containers (13) are respectively filled with phase change material (12), and heat exchange tubes (14) are embedded in the phase change material (12), and the heat exchange tubes (14) One end is connected with a water inlet pipe (1), and the other end is connected with a water outlet pipe (11), which is characterized in that: a water return pipe (2) is connected between the water inlet pipe (1) and the water outlet pipe (11). The return pipe (2) is provided with a circulation pump (10) and a water container (9), an electric heater (8) is installed in the water container (9), and the circulation pump (10) and the electric heater (8) respectively electrically connect a controller (7), and the controller (7) is fixed on the water heater casing (5). 2. The phase-change thermal storage electric water heater according to claim 1, characterized in that: a temperature probe (4) is arranged on the outlet pipe (11), and the temperature probe (4) is electrically connected to the controller (7). 3. The phase-change thermal storage electric water heater according to claim 1, characterized in that: the water outlet pipe (11) is further provided with a water flow switch (15), and the water flow switch (15) is electrically connected to the control device (7). 4. The phase-change thermal storage electric water heater according to claim 1, 2 or 3, characterized in that: said inlet pipe (1), outlet pipe (11) and return pipe (2) are all equipped with one-way valve (3).

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