A phase-introduced electrode connection structure and an electrode boiler

Abstract

This utility model provides a phase-introducing electrode connection structure and an electrode boiler, relating to the field of electrode boiler technology. It includes a phase-introducing electrode, a flange module, and a pipe body. The flange module includes an upper flange, a lower flange, a flange bolt assembly, threaded fasteners, and a fastening ring. The upper and lower flanges are fitted onto the phase-introducing electrode. An annular mating groove is provided on the side of the lower flange opposite to the upper flange. The mating groove is used for inserting the pipe body and installing the fastening ring. The threaded fasteners are used to fix the fastening ring. When the fastening ring is installed, it compresses the pipe body to make it fit against the inner wall of the mating groove. By setting the mating groove, the lower flange and the pipe body are connected using threaded fasteners, eliminating the need for welding and simplifying the welding process. This achieves high-efficiency connection and avoids quality problems caused by welding inexperience or errors. After the lower flange is connected to the pipe body, the upper flange cooperates with the lower flange to fix the phase-introducing electrode.

Description

Technical Field

[0001] This utility model relates to the field of electrode boiler technology, and in particular to a phase-introduced electrode connection structure and an electrode boiler. Background Technology

[0002] Electrode boilers are high-efficiency, high-power-density, and pollution-free electric-to-heat conversion devices. Their principle involves directly introducing high-voltage three-phase electrical energy into a solution with a certain conductivity to generate Joule heat. The hot solution then transfers heat to the heating user through a heat exchanger.

[0003] In electrode boilers, the phase introduction electrode is generally connected to the tube body installed on the boiler shell through a flange structure. The flange needs to be welded to the end of the tube body, which results in low welding efficiency. The skill level of the welder directly affects the welding quality. If the welding is poor, it will directly affect the use and quality of the product. In order to address the above-mentioned defects, this application is made. Utility Model Content

[0004] The purpose of this invention is to provide a phase-introduced electrode connection structure and electrode boiler that eliminates the need to weld the flange to the pipe body, thus solving the problems of low efficiency and poor welding quality stability of current welding connection methods.

[0005] To address the aforementioned problems, this utility model provides a phase-introducing electrode connection structure, comprising a phase-introducing electrode, a flange module, and a pipe body. The flange module includes an upper flange, a lower flange, a flange bolt assembly, threaded fasteners, and a fastening ring. The upper and lower flanges are fitted onto the phase-introducing electrode. The lower flange has an annular mating groove on one end face away from the upper flange. The mating groove is used for inserting the pipe body and installing the fastening ring. The threaded fasteners are used to fix the fastening ring. When the fastening ring is installed, it compresses the pipe body to make the pipe body fit against the inner wall of the mating groove.

[0006] According to one embodiment of the present invention, the threaded fastener is also used to fix the pipe body.

[0007] According to one embodiment of the present invention, both the docking groove and the fastening ring are provided with inclined surfaces.

[0008] According to one embodiment of the present invention, a sealing ring is provided on the side of the docking groove that contacts the pipe body.

[0009] According to one embodiment of the present invention, a second sealing ring is installed on the fastening ring.

[0010] According to one embodiment of the present invention, the phase-introduced electrode connection structure further includes a flat gasket made of non-metallic material.

[0011] According to one embodiment of the present invention, positioning steps are provided on both the upper flange and / or the lower flange.

[0012] According to one embodiment of the present invention, an annular protrusion is provided at the outer edge of the upper flange, and a sealing ring is provided between the annular protrusion and the lower flange.

[0013] An electrode boiler includes the phase-introduced electrode connection structure described above.

[0014] The beneficial effects of this utility model are that by setting a mating groove, the lower flange and the pipe body are connected using threaded fasteners, eliminating the need for welding and simplifying the welding process. This achieves high-efficiency docking and avoids quality problems caused by welding inexperience or errors. After the lower flange is connected to the pipe body, the upper flange cooperates with the lower flange to fix the phase-introduced electrode. Furthermore, by setting a positioning step on the flange, the flat gasket is positioned, facilitating installation and preventing significant misalignment of the flat gasket during fixing. The annular protrusion and sealing ring three provide a sealing effect at the flange mating surface. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 A schematic diagram of the overall structure of the phase-introduced electrode connection structure;

[0017] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0018] Figure 3 This is a schematic diagram of the bottom structure of the lower flange. Detailed Implementation

[0019] The following description is only intended to disclose the present invention so that those skilled in the art can implement it. The embodiments in the following description are merely examples, and those skilled in the art will conceive of other obvious modifications. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other solutions that do not depart from the spirit and scope of the present invention.

[0020] Example 1:

[0021] A phase-introduced electrode connection structure, generally suitable for electrode steam / hot water boilers with operating pressure of 1MPa and below, such as... Figure 1 It includes a phase introduction electrode 1, a flange module 2 and a pipe body 3. The phase introduction electrode 1 mainly includes a copper rod 11 and a ceramic sleeve 12. The upper end of the copper rod 11 is the electrode connection point, and the lower end is used to connect with the phase electrode in the boiler.

[0022] One end of the tube body 3 is installed on the outer shell of the boiler or is part of the outer shell, and the other end is used to connect to the lower flange 22 in the flange module 2.

[0023] Flange module 2 includes an upper flange 21, a lower flange 22, a flange bolt assembly 23, threaded fasteners, a fastening ring 264, and a non-metallic flat gasket 24. The upper flange 21 and lower flange 22 are fitted at the fixed position of the phase introduction electrode 1. A flat gasket 24 is provided between the upper flange 21 and lower flange 22 and the phase introduction electrode 1. To facilitate installation and prevent significant misalignment of the flat gasket 24 during fixing, such as... Figure 2 Both the upper flange 21 and the lower flange 22 are provided with positioning steps 25, which are used to position the flat gasket 24.

[0024] like Figure 2 The lower flange 22 has an annular mating groove 262 on one side of the upper flange 21. The mating groove 262 is used for inserting the pipe body 3 and installing the fastening ring 264. The threaded fastener is used to fix the fastening ring 264. When the fastening ring 264 is installed, it squeezes the pipe body 3 to make the pipe body 3 fit against the inner wall of the mating groove 262.

[0025] The threaded fasteners can be screws or bolts. The fastening ring 264 can be pressed into the tube body 3 by an interference fit. In this embodiment, the threaded fasteners are also used to fix the tube body 3. Both the mating groove 262 and the fastening ring 264 are provided with inclined surfaces. The two are in contact through the inclined surfaces. The inclined surfaces facilitate the installation and pressing of the fastening ring 264. The top and side surfaces of the mating groove 262 and the tube body 3 are pre-machined with 4 to 6 threaded holes. The tube body 3 is fixed by the threaded fastener 263 and the fastening ring 264 is fixed by the threaded fastener 265. During installation, the tube body 3 and the fastening ring 264 are installed into the mating groove 262. The tube body 3 is tightened first, and then the fastening ring 264 is tightened.

[0026] The fastening ring 264 is made of a material with a certain elastic deformation capability, such as polyurethane. It can also be designed in segments, such as setting two half-rings with a certain gap between the half-rings.

[0027] A sealing ring 263 is provided on the side of the docking groove 262 that contacts the pipe body 3, and a sealing ring 266 is installed on the fastening ring 264 for sealing contact with the top surface of the docking groove 262.

[0028] Preferably, a sealing ring four is provided on the end face of the fastening ring 264 that contacts the tube body 3, and a sealing ring five is provided at the end face of the mating groove 262 that contacts the tube body 3.

[0029] The sealing effect is achieved through sealing ring 263 and sealing ring 266, etc.

[0030] Example 2:

[0031] Based on Example 1, in this example, as Figure 1 , Figure 2 An annular protrusion 211 is provided at the outer edge of the upper flange 21, and a sealing ring 27 is provided between the annular protrusion 211 and the lower flange 22. Preferably, the annular protrusion 211 and the lower flange 22 are provided with grooves for positioning and accommodating the sealing ring 27. The sealing ring 27 plays a sealing role at the flange mating surface.

[0032] An electrode boiler includes the phase-introducing electrode connection structure in any of the above embodiments. The installation position of this structure can be referred to in the prior patent CN218495362U, in which the accompanying drawings are attached. Figure 1 The position of phase introduction electrode 23 is the installation position of the phase introduction electrode connection structure.

[0033] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations and modifications.

Claims

1. A phase-introduced electrode connection structure, characterized in that: The device includes a phase-introducing electrode (1), a flange module (2), and a pipe body (3). The flange module (2) includes an upper flange (21), a lower flange (22), a flange bolt assembly (23), threaded fasteners, and a fastening ring (264). The upper flange (21) and the lower flange (22) are fitted onto the phase-introducing electrode (1). The lower flange (22) has an annular mating groove (262) on one side of its back face from the upper flange (21). The mating groove (262) is used for inserting the pipe body (3) and installing the fastening ring (264). The threaded fasteners are used to fix the fastening ring (264). When the fastening ring (264) is installed, it squeezes the pipe body (3) to make the pipe body (3) fit against the inner wall of the mating groove (262).

2. The phase-introducing electrode connection structure according to claim 1, characterized in that: The threaded fastener is also used to fix the pipe body (3).

3. The phase-introducing electrode connection structure according to claim 1, characterized in that: Both the docking groove (262) and the fastening ring (264) are provided with inclined surfaces.

4. The phase-introducing electrode connection structure according to claim 1, characterized in that: A sealing ring (263) is provided on the side of the docking groove (262) that contacts the pipe body (3).

5. The phase-introducing electrode connection structure according to claim 4, characterized in that: A second sealing ring (266) is installed on the fastening ring (264).

6. The phase-introducing electrode connection structure according to any one of claims 1-5, characterized in that: The phase-introduced electrode connection structure also includes a non-metallic flat gasket (24).

7. The phase-introducing electrode connection structure according to claim 6, characterized in that: Positioning steps (25) are provided on both the upper flange (21) and / or the lower flange (22).

8. The phase-introducing electrode connection structure according to claim 5, characterized in that: An annular protrusion (211) is provided at the outer edge of the upper flange (21), and a sealing ring (27) is provided between the annular protrusion (211) and the lower flange (22).

9. An electrode boiler, characterized in that: Includes the phase-introduced electrode connection structure as described in any one of claims 1-8.

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