Electric arc water heater

Abstract

The utility model is suitable for the technical field of electric arc heating, and provides an electric arc water heater which comprises an electric arc heater and a heated water pipe. The arc heater comprises an insulating ceramic tube, an anode electrode and a cathode electrode; the insulating ceramic tube is provided with an inner cavity, and the anode electrode and the cathode electrode are respectively arranged at two ends of the inner cavity of the insulating ceramic tube; a preset distance is formed between the anode electrode and the cathode electrode; and the heated water pipe is coiled on the outer side of the insulating ceramic pipe. Therefore, the electric arc water heater disclosed by the utility model is low in cost, and can be used for rapidly heating in a smaller volume.

Description

Technical Field

[0001] This utility model relates to the field of electric arc heating technology, and in particular to an electric arc water heater. Background Technology

[0002] In industrial or commercial applications requiring large quantities of high-temperature hot water, centralized boiler heating is slow and unsuitable for urgent needs, and its poor heat retention leads to significant energy waste during the heating process. Traditional instantaneous water heaters, which use piped water heating, require a high-efficiency electro-thermal converter. However, resistance heating has a characteristic: if long-term high-temperature heating is required without the resistance wire melting, the cross-section of the resistance wire needs to be increased. Based on the electrical conductivity of metals, the cross-section of the resistance wire is inversely proportional to its resistance. Increasing the cross-section reduces the resistance, resulting in a larger current and a proportionally amplified heating power. To control the current, the length of the resistance wire needs to be increased. Because instant water heaters have a fast water flow rate in their pipes, and ordinary resistance wires can hardly convert a large amount of heat into a small volume, a large or multi-stage electric heat exchanger is needed to extend the water heating distance. Its manufacturing process is complex and costly, and the heat exchanger itself also requires a large amount of electrical energy to heat up. Therefore, the currently used resistance heating technology cannot efficiently achieve high-temperature instant hot water for large volumes. An electric heat exchanger with high efficiency, high power, and high temperature characteristics in a small unit volume is needed to complete the heating of large volumes of water.

[0003] In conclusion, the existing structure obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0004] In view of the above-mentioned defects, the purpose of this utility model is to provide an electric arc water heater that is low in cost and can heat water quickly in a small volume.

[0005] To achieve the above objectives, this utility model provides an electric arc water heater, comprising:

[0006] An electric arc heater includes an insulating ceramic tube, an anode electrode, and a cathode electrode; the insulating ceramic tube has an inner cavity, and the anode electrode and the cathode electrode are respectively disposed at both ends of the inner cavity of the insulating ceramic tube; a predetermined distance is provided between the anode electrode and the cathode electrode;

[0007] The hot water pipe is coiled around the outside of the insulating ceramic pipe.

[0008] According to the electric arc water heater, the insulating ceramic tube is a hollow cylinder, and a hollow boss is provided inwardly in the middle of the inner cavity of the insulating ceramic tube; the anode electrode is fastened to the inner cavity and abuts against one end of the boss; the cathode electrode is fastened to the inner cavity and abuts against the other end of the boss.

[0009] According to the electric arc water heater, the end of the anode electrode facing the cathode electrode is conical; the end of the cathode electrode facing the anode electrode is conical.

[0010] According to the electric arc water heater, the hot water receiving pipe is spirally coiled around the outside of the insulating ceramic tube.

[0011] According to the electric arc water heater, the insulating ceramic tube is an alumina ceramic tube.

[0012] According to the electric arc water heater, the hot water receiving pipe is made of metal.

[0013] According to the electric arc water heater, the anode electrode is made of graphite material.

[0014] According to the electric arc water heater, the cathode electrode is made of graphite material.

[0015] This utility model discloses an electric arc water heater, comprising an electric arc heater and a hot water receiving pipe. The electric arc heater can rapidly generate temperatures exceeding 1000 degrees Celsius, quickly heating the hot water receiving pipe tightly attached to its outer side. The electric arc heater includes an insulating ceramic tube, an anode electrode, and a cathode electrode. The insulating ceramic tube has an inner cavity, with the anode and cathode electrodes respectively disposed at both ends of the inner cavity. The insulating ceramic tube is insulating, preventing leakage to the hot water receiving pipe and preventing short circuits between the anode and cathode electrodes at its ends. A preset distance exists between the anode and cathode electrodes. After energization, an electric arc is generated between the anode and cathode electrodes. Because the generated arc is also located within the inner cavity of the insulating ceramic tube, strong light emitted by the arc is prevented from penetrating, and the sound emitted by the arc is also reduced. This electric arc water heater generates an electric arc by setting a single set of anode and cathode electrodes, eliminating the need for multi-stage electrothermal converters. Its simple structure allows for rapid generation of temperatures exceeding 1000 degrees Celsius within a small volume, enabling rapid heating of the hot water receiving pipe attached to its outer side, and it is also low in cost. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an electric arc water heater provided in one embodiment of the present invention;

[0017] Figure 2This is a cross-sectional view of an electric arc water heater provided in an embodiment of this utility model;

[0018] Figure 3 This is an exploded structural diagram of an electric arc water heater provided in one embodiment of the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] See Figures 1-3 In one embodiment of this utility model, an electric arc water heater 100 is provided, comprising:

[0021] An electric arc heater 10 includes an insulating ceramic tube 11, an anode electrode 12, and a cathode electrode 13. The insulating ceramic tube 11 has an inner cavity 111, and the anode electrode 12 and the cathode electrode 13 are respectively disposed at both ends of the inner cavity 111 of the insulating ceramic tube 11. There is a preset distance between the anode electrode 12 and the cathode electrode 13.

[0022] The hot water pipe 20 is coiled around the outside of the insulating ceramic pipe 11.

[0023] In this embodiment, the arc heater 10 does not require a multi-stage electrothermal converter and can quickly generate temperatures above 1000 degrees Celsius within a small volume, thereby rapidly heating the hot water pipe 20 attached to its outer side. Specifically, the anode electrode 12 and cathode electrode 13 are located at opposite ends of the through-hole 111 of the insulating ceramic tube 11. The cathode electrode 13 is connected to the cathode power supply, and the anode electrode 12 is connected to the anode power supply. There is a preset distance between the anode electrode 12 and the cathode electrode 13. After energization, an electric arc is generated between the anode electrode 12 and the cathode electrode 13, instantly generating high temperatures. The anode electrode 12 and the cathode electrode 13 can optionally be made of graphite material. Because graphite material is not only low in cost but also has the characteristics of electrical conductivity, high temperature resistance, and fast thermal conductivity, the electric arc and the anode electrode 13 can generate high temperatures. Both the anode electrode 12 and cathode electrode 13 can reach temperatures exceeding 1000 degrees Celsius. Since the electric arc, anode electrode 12, and cathode electrode 13 are all located within the inner cavity 111 of the insulating ceramic tube 11 and are tightly bonded to its inner wall, the heat generated by the electric arc can be conducted to the insulating ceramic tube 11. The hot water receiving pipe 20, which is wound around the insulating ceramic tube 11, conducts heat to the hot water receiving pipe 20. The hot water receiving pipe 20 can be made of metal. When water flows through the hot water receiving pipe 20, it conducts heat into the water flow, heating the water. Because the electric arc is located within the inner cavity 111 of the insulating ceramic tube 11, and the insulating ceramic tube 11 has opaque properties, the strong light generated by the electric arc can be prevented from escaping, and the sound generated by the electric arc can be reduced. The insulating ceramic tube 11 also has insulating properties, preventing leakage of electricity to the hot water receiving pipe 20.

[0024] See Figures 1-3 As an optional embodiment, the insulating ceramic tube 11 is a hollow cylinder, and the inner cavity 111 of the insulating ceramic tube 11 has a hollow boss 112 protruding inward in the middle; the anode electrode 12 is fastened to the inner cavity 111 and abuts against one end of the boss 112; the cathode electrode 13 is fastened to the inner cavity 111 and abuts against the other end of the boss 112.

[0025] In this embodiment, the insulating ceramic tube 11 is a hollow cylinder with a simple structure, making it easy for the hot water pipe 20 to be wound around its outer side. Of course, the insulating ceramic tube 11 can also be a hollow prism. A hollow boss 112 is provided in the middle of the inner cavity 111 of the insulating ceramic tube 11. The two ends of the boss 112 abut against the anode electrode 12 and the cathode electrode 13, respectively, so that the anode electrode 12 and the cathode electrode 13 are stably disposed in the inner cavity 111 and have a preset distance. The boss 112 has a hollow structure to facilitate the generation of an electric arc between the anode electrode 12 and the cathode electrode 13.

[0026] See Figures 2-3As an optional embodiment, the end of the anode electrode 12 facing the cathode electrode 13 is conical; the end of the cathode electrode 13 facing the anode electrode 12 is also conical, and the conical structure has a tip to facilitate the stable generation of an electric arc between the anode electrode 12 and the cathode electrode 13.

[0027] See Figures 1-3 As an optional embodiment, the hot water receiving pipe 20 is spirally coiled around the outside of the insulating ceramic pipe 11 to increase the contact area between the hot water receiving pipe 20 and the insulating ceramic pipe 11 and improve the heating efficiency.

[0028] As an optional embodiment, the insulating ceramic tube 11 is an alumina ceramic tube. Alumina ceramic tubes have high-temperature characteristics, and their surface temperature can reach over 1000 degrees Celsius. Furthermore, alumina ceramic tubes not only have insulation properties but also sufficient hardness to prevent breakage and leakage during use.

[0029] In summary, this utility model of an electric arc water heater includes an electric arc heater and a hot water receiving pipe. The electric arc heater can quickly generate a high temperature of over 1000 degrees Celsius, rapidly heating the hot water receiving pipe tightly attached to its outer side. The electric arc heater includes an insulating ceramic tube, an anode electrode, and a cathode electrode. The insulating ceramic tube has an inner cavity, and the anode electrode and the cathode electrode are respectively disposed at both ends of the inner cavity of the insulating ceramic tube. The insulating ceramic tube has insulation properties, which can prevent leakage of electricity to the hot water receiving pipe and also prevent short circuits between the anode electrode and the cathode electrode at both ends. There is a preset distance between the anode electrode and the cathode electrode. After energization, an electric arc is generated between the anode electrode and the cathode electrode. Since the generated electric arc is also located in the inner cavity of the insulating ceramic tube, the strong light emitted by the electric arc is prevented from passing through, and the sound emitted by the electric arc is also reduced. This electric arc water heater can quickly generate a high temperature of over 1000 degrees Celsius in a small volume, thereby achieving rapid heating of the hot water receiving pipe attached to its outer side, and it has a simple structure and low cost.

[0030] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. An electric arc water heater characterized by, The application relates to an electric arc heater, comprising: an electric arc heater, comprising an insulating ceramic tube, an anode electrode and a cathode electrode; the insulating ceramic tube has an inner cavity, the anode electrode and the cathode electrode are arranged at two ends of the inner cavity of the insulating ceramic tube respectively, and a preset interval is arranged between the anode electrode and the cathode electrode; a heated water pipe is coiled on the outer side of the insulating ceramic tube.

2. The arc heater of claim 1, wherein The insulating ceramic tube is in a hollow cylindrical shape, a boss in a hollow structure is arranged on the inner cavity of the insulating ceramic tube in a concave manner, the anode electrode is tightly installed on the inner cavity and abuts against one end of the boss, and the cathode electrode is tightly installed on the inner cavity and abuts against the other end of the boss.

3. The arc heater of claim 1, wherein One end of the anode electrode is in a conical shape and faces the cathode electrode, and one end of the cathode electrode is in a conical shape and faces the anode electrode.

4. The arc heater of claim 1, wherein The heated water pipe is spirally coiled on the outer side of the insulating ceramic tube.

5. The arc heater of claim 1 wherein, The insulating ceramic tube is an alumina ceramic tube.

6. The arc heater of claim 1, wherein The heated water pipe is made of a metal material.

7. The arc heater of claim 1 wherein, The anode electrode is made of a graphite material.

8. The arc heater of claim 1 wherein, The cathode electrode is made of a graphite material.

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