Neutral point grounded electrode boiler support structure

Abstract

The application discloses a neutral point ungrounded electrode boiler support structure, which comprises an electrode boiler, a skirt, a first bottom plate, an insulating support, a second bottom plate and a ground plate. The side wall of the electrode boiler is in a cylindrical shape. The first bottom plate and the second bottom plate are respectively fixed to two ends of the insulating support, and the first bottom plate and the second bottom plate are in a parallel state. The first bottom plate is fixedly matched with the skirt. A closed chute is formed in the ground plate. The second bottom plate is slidably arranged in the chute. The electrode boiler is arranged on the skirt. The electrode boiler and the first bottom plate are respectively located on two sides of the skirt. The first bottom plate, the insulating support and the second bottom plate are fixed together to form a support assembly. The support assembly is even in number, and all the support assemblies are distributed at equal intervals and equal radians around the central axis of the electrode boiler. The ground plate is used for being fixed on the ground. The dynamic friction factor between the second bottom plate and the ground plate is not more than 0.2.

Description

Technical Field

[0001] This invention relates to the field of electrode boiler equipment, and more particularly to a support structure for a neutral-point ungrounded electrode boiler. Background Technology

[0002] Patent publication CN212565720U discloses an electrode boiler with an ungrounded neutral point. This electrode boiler includes a boiler body (reference number 3 in the document) and a metal protective shell (reference number 13 in the document, generally referred to as an isolation chamber in the industry). The boiler body is set inside the isolation chamber, and a supporting insulator (reference number 6 in the document) is set between the bottom of the boiler body and the bottom of the isolation chamber. The bottom of the supporting insulator is in contact with the bottom of the isolation chamber.

[0003] Support insulators are supported by non-conductive materials. The industry generally uses porcelain insulators (made of ceramic) or fiberglass insulators (made of fiberglass). Whether made of ceramic or fiberglass, insulators are brittle (i.e. fragile) and not wear-resistant components.

[0004] The scheme shown in CN212565720U does not disclose the specific installation structure of the supporting insulator. If the two ends of the supporting insulator are not fixed to the boiler body and the protective shell, the supporting insulator may slip off between the boiler body and the protective shell due to vibration during boiler operation. If the two ends of the supporting insulator are fixed to the boiler body and the protective shell respectively, the boiler water temperature will rise during operation, causing the boiler body to expand. This expansion will generate tensile stress on the insulator, causing it to break. If the insulator is fixed to the bottom of the boiler body, the vibration and expansion of the boiler body during operation will cause continuous friction between the insulator and the protective shell, leading to insulator wear. This wear may cause the insulator to break or the boiler body to overturn. If the insulator is fixed to the bottom of the protective shell, the vibration and movement of the boiler body during operation may cause the boiler body to slip off the insulator. In summary, the insulator installation scheme shown in CN212565720U poses a significant safety hazard to the boiler body during operation. Summary of the Invention

[0005] To address the aforementioned problems, this invention proposes a neutral point ungrounded electrode boiler support structure.

[0006] The technical solution adopted in this invention is as follows:

[0007] A neutral-point ungrounded electrode boiler support structure includes an electrode boiler with cylindrical sidewalls, a skirt, a first base plate, an insulating support, a second base plate, and a ground panel. The first and second base plates are fixed to both ends of the insulating support and are parallel to each other. The first base plate is fixedly fitted to the skirt. A closed groove is provided on the ground panel, and the second base plate is slidably disposed within the groove. The electrode boiler is mounted on the skirt, and the electrode boiler and the first base plate are located on opposite sides of the skirt. The first base plate, the insulating support, and the second base plate are fixed together to form a support assembly. There are an even number of support assemblies, all of which are equidistantly and equally arc-shaped around the central axis of the electrode boiler. The ground panel is used to fix the boiler to the ground, and the coefficient of dynamic friction between the second base plate and the ground panel does not exceed 0.2.

[0008] In this type of electrode boiler support structure, the ground panel is fixed to the ground, while the second base plate can slide on the ground. The coefficient of dynamic friction between the second base plate and the ground panel does not exceed 0.2, resulting in a relatively smooth surface. Therefore, the second base plate is easy to slide relative to the ground panel. In this design, the electrode boiler is mounted on a skirt, and several support components are mounted on the skirt. When the electrode boiler expands (it expands when heating water and contracts when heating stops), the expansion causes the skirt to expand, which in turn causes the support components on the skirt to move outwards. Specifically, when the electrode boiler expands, the support components move away from the central axis of the electrode boiler. Conversely, when the electrode boiler stops heating and contracts, the support components move closer to the central axis of the electrode boiler. Because the ground panel is fixed to the ground, and the second base plate, which is in contact with the ground panel, easily experiences relative friction (since the coefficient of dynamic friction between them does not exceed 0.2), the stress generated on the support insulator is relatively low when the second base plate moves on the ground, reducing the probability of the support insulator breaking due to stress during movement. Furthermore, since the supporting insulators do not experience friction in this structure, they will not wear out.

[0009] Furthermore, since there is an even number of support components, all of which are equidistant and arc-shaped around the central axis of the electrode boiler, the amount of movement of each support component is equal when the electrode boiler expands (or contracts). Also, because the grooves on the ground plate are closed, the second base plate cannot slide out of the second groove. This design ensures that the support components can stably support the skirt, preventing the skirt and electrode boiler from tilting. Additionally, the weight borne by each support component is equal, thus preventing individual support components from breaking due to excessive load.

[0010] Meanwhile, based on the expansion and contraction characteristics of a cylinder (the electrode boiler is roughly cylindrical), the movement range of each support component is roughly within a straight groove area. As long as this straight groove area is located within the sliding groove of the ground panel, it can be ensured that the second base plate can slide stably on the ground panel.

[0011] In summary, this type of support structure combines the first base plate, the supporting insulator, and the second base plate to form a support assembly. Simultaneously, a ground panel is installed on the ground to contact the second base plate, preventing the supporting insulator from directly rubbing against external objects. This reduces the stress on the supporting insulator during the expansion and contraction of the electrode boiler, lowers the probability of the supporting insulator breaking, and improves the overall safety of the electrode boiler support structure.

[0012] The specific supporting insulator can be a porcelain bottle or a fiberglass bottle.

[0013] Specifically, this type of support structure has a total of four support components, which are distributed equidistantly and with equal arc around the central axis of the electrode boiler.

[0014] Optionally, each support assembly has four insulating supports, and the four insulating supports are in a parallel state.

[0015] Four insulating supports ensure good support stability of the support assembly.

[0016] Optionally, the second base plate is a block-shaped second base plate, and the slide is a square closed slide.

[0017] Optionally, the skirt support includes a cylinder and a support plate. The cylinder is vertically fixed on the support plate, the first base plate is fixedly fitted together with the support plate, and the motor boiler is clamped at the opening of the cylinder.

[0018] This design includes a cylinder and a support plate. The cylinder's opening is used to clamp the electrode boiler, while the support plate supports the cylinder (including the electrode boiler). The cylinder's presence can buffer and attenuate the expansion of the electrode boiler. The expansion at the cylinder's opening where it clamps the electrode boiler is basically the same as the electrode boiler's expansion. However, the closer the cylinder is to the support plate, the smaller its expansion. When the expansion is transmitted to the support plate, the expansion of the support plate (or even no expansion) is significantly reduced compared to the electrode boiler's expansion. This minimizes the movement of the support components (or even eliminates the need for them to move), thus greatly reducing the probability of the support insulator breaking.

[0019] Optionally, the support plate is provided with an embedding groove, and the first base plate is fitted into the embedding groove.

[0020] Because the support insulators in the support assembly are relatively easy to damage, the first base plate is fixed to the support plate by a snap-fit ​​method, which facilitates quick replacement of the support assembly when needed.

[0021] Optionally, the second base plate is a metal base plate, the ground panel is a metal ground panel, and the coefficient of dynamic friction between the second base plate and the ground panel is 0.1 to 0.2.

[0022] Optionally, the number of the floor panels is equal to the number of the second base plates, and each floor panel is provided with a sliding groove.

[0023] Optionally, all floor panels can be located in a single plane.

[0024] All the floor panels are located in one plane so that they can stably support the electrode boiler.

[0025] The beneficial effects of the present invention are as follows: by combining the first base plate, the supporting insulator and the second base plate together to form a supporting assembly, and by setting a ground panel on the ground to contact the second base plate, the supporting insulator is prevented from directly rubbing against external objects, the stress on the supporting insulator is reduced when the electrode boiler expands and contracts, the probability of the supporting insulator breaking is reduced, and the safety of the entire electrode boiler supporting structure is improved. Attached image description:

[0026] Figure 1 This is a simplified schematic diagram of the support structure for a neutral point ungrounded electrode boiler.

[0027] Figure 2 yes Figure 1 A simplified enlarged diagram of point A in the middle;

[0028] Figure 3 This is a simplified diagram illustrating the fit between the electrode boiler and the skirt support.

[0029] Figure 4 yes Figure 3 A simplified enlarged diagram of point B in the middle;

[0030] Figure 5 This is a simplified structural diagram of the supporting components;

[0031] Figure 6 This is a schematic diagram showing the fit between the skirt base and the support components;

[0032] Figure 7 It is the direction of movement of the four insulating supports during expansion.

[0033] The attached figures are labeled as follows: 1. Electrode boiler; 2. Enclosure; 3. Support plate; 301. Embedded groove; 4. Supporting insulator; 5. Ground panel; 501. Slide groove; 6. Second base plate; 7. First base plate; 8. Screw; 9. Ground. Detailed implementation method:

[0034] The present invention will now be described in detail with reference to the accompanying drawings.

[0035] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 and appendix Figure 6 As shown, a support structure for a neutral-point ungrounded electrode boiler 1 includes an electrode boiler 1 with cylindrical sidewalls. It also includes a skirt, a first base plate, an insulating support, a second base plate 6, and a ground panel 5. The first base plate and the second base plate 6 are fixed to both ends of the insulating support and are parallel to each other. The first base plate is fixedly fitted to the skirt. A closed groove 501 is provided on the ground panel 5, and the second base plate 6 is slidably disposed within the groove 501. The electrode boiler 1 is mounted on the skirt, with the electrode boiler 1 and the first base plate located on opposite sides of the skirt. The first base plate, the insulating support, and the second base plate 6 are fixed together to form a support assembly. There are an even number of support assemblies, all of which are equidistantly distributed around the central axis of the electrode boiler 1. The ground panel 5 is used to fix the boiler to the ground, and the coefficient of dynamic friction between the second base plate 6 and the ground panel 5 does not exceed 0.2.

[0036] In the support structure of this electrode boiler 1, the ground panel 5 is fixed to the ground 9 by screws 8, while the second base plate 6 can slide on the ground panel. The coefficient of dynamic friction between the second base plate 6 and the ground panel 5 does not exceed 0.2, so the second base plate 6 and the ground panel 5 are in a relatively smooth state, and the second base plate 6 is easy to slide relative to the ground panel 5. Therefore, in this design, the electrode boiler 1 is mounted on the skirt base, and several support components are also mounted on the skirt base. When the electrode boiler 1 expands (it expands when heating water and contracts when heating stops), the expansion of the electrode boiler 1 causes the skirt base to expand, which in turn causes the support components on the skirt base to move in all directions. That is, when the electrode boiler 1 expands, it causes the support components to move away from the central axis of the electrode boiler 1. Conversely, when the electrode boiler 1 stops heating and contracts, it causes the support components to move closer to the central axis of the electrode boiler 1. Since the ground panel 5 is fixed to the ground in this support structure, and the second base plate 6, which is in contact with the ground panel 5, is prone to relative friction with the ground panel 5 (because the coefficient of dynamic friction between the two does not exceed 0.2), the stress generated on the support insulator 4 is relatively low when the second base plate 6 moves on the ground panel 5, reducing the probability of the support insulator 4 breaking due to stress during movement. Furthermore, since the support insulator 4 does not experience friction in this structure, it will not wear out.

[0037] Meanwhile, since the number of support components is even, and all support components are distributed equidistantly and with equal arcs around the central axis of the electrode boiler 1, the amount of movement of each support component is equal when the electrode boiler 1 expands (or contracts). Furthermore, because the sliding groove 501 on the ground panel 5 is a closed groove, the second base plate 6 cannot slide out of the second sliding groove 501. This design ensures that the support components can always stably support the skirt, ensuring that the skirt and the electrode boiler 1 do not tilt. Moreover, the weight borne by each support component is equal, thus preventing individual support components from breaking due to excessive load on the support insulator 4.

[0038] Simultaneously, based on the expansion and contraction characteristics of a cylinder (the electrode boiler 1 is roughly cylindrical), the movement range of each support component is approximately within a straight groove-shaped area. As long as this straight groove-shaped area is located within the sliding groove 501 of the ground panel 5, it can be ensured that the second base plate 6 can slide stably on the ground panel 5. For the specific direction of movement of each support component during expansion, please refer to the appendix. Figure 7 As shown, attached Figure 7 The direction indicated by the middle arrow is the direction of movement of the support component. Figure 7 The cubes in the diagram can be seen as supporting components, while the rings can be seen as support plates.

[0039] In summary, in this type of support structure, by combining the first base plate, the supporting insulator 4, and the second base plate 6 together to form a support assembly, and by setting a ground panel 5 on the ground to contact the second base plate 6, the supporting insulator 4 is prevented from directly rubbing against external objects, the stress on the supporting insulator 4 is reduced when the electrode boiler 1 expands and contracts, the probability of the supporting insulator 4 breaking is reduced, and the safety of the entire electrode boiler 1 support structure is improved.

[0040] Specifically, the supporting insulator 4 can be a porcelain insulator or a fiberglass insulator.

[0041] Specifically, this type of support structure has a total of four support components, which are distributed equidistantly and with equal arc around the central axis of the electrode boiler 1.

[0042] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 and appendix Figure 6 As shown, each support assembly has four insulating supports, and the four insulating supports are in a parallel state.

[0043] Four insulating supports ensure good support stability of the support assembly.

[0044] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 and appendix Figure 6 As shown, the second base plate 6 is a block-shaped second base plate 6, and the slide groove 501 is a square closed slide groove 501.

[0045] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 and appendix Figure 6 As shown, the skirt base includes a cylinder and a support plate 3. The cylinder is vertically fixed on the support plate 3. The first base plate is fixedly fitted together with the support plate 3. The motor boiler is clamped at the opening of the cylinder.

[0046] The skirt support of this design includes a cylinder and a support plate 3. The opening of the cylinder is used to clamp the electrode boiler 1, while the support plate 3 is used to support the cylinder (including the electrode boiler 1). The presence of the cylinder can buffer and attenuate the expansion of the electrode boiler 1. The expansion at the opening of the cylinder clamping the electrode boiler 1 is basically the same as the expansion of the electrode boiler 1. However, the closer the cylinder is to the support plate 3, the smaller its expansion. When the expansion is transmitted to the support plate 3, the expansion of the support plate 3 (or even no expansion) is significantly reduced compared with the expansion of the electrode boiler 1. This can minimize the movement of the support components (or even eliminate the need for the support components to move), thus greatly reducing the probability of the support insulator 4 breaking.

[0047] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 and appendix Figure 6 As shown, the support plate 3 is provided with an embedding groove 301, the first base plate is embedded in the embedding groove 301, and the first base plate and the support plate are detachably fixed together by screws 8.

[0048] Because the support insulator 4 in the support assembly is a relatively easy part to be damaged, the first base plate is fixed to the support plate 3 by a snap-fit ​​method, so as to facilitate quick replacement of the support assembly when needed.

[0049] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 and appendix Figure 6 As shown, the second base plate 6 is made of metal, the ground panel 5 is made of metal, and the coefficient of dynamic friction between the second base plate 6 and the ground panel 5 is 0.1 to 0.2.

[0050] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 and appendix Figure 6 As shown, the number of floor panels 5 is equal to the number of second base plates 6, and each floor panel 5 is provided with a groove 501.

[0051] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 and appendix Figure 6 As shown, all the floor panels 5 are located in one plane.

[0052] All the floor panels 5 are located in one plane in order to stably support the electrode boiler 1.

[0053] This embodiment further discloses an urban heating system based on an electrode boiler, which provides heating based on hot water generated by the electrode boiler, wherein the electrode boiler is installed using the aforementioned neutral-point ungrounded electrode boiler support structure.

[0054] The above description is merely a preferred embodiment of the present invention and does not limit the scope of patent protection of the present invention. Any equivalent modifications made based on the content of the present invention specification, whether directly or indirectly applied to other related technical fields, are similarly included within the scope of protection of the present invention.

Claims

1. A neutral point grounded electrode boiler support structure comprising an electrode boiler, the side wall of the electrode boiler is cylindrical, characterized in that, It also includes a skirt base, a first base plate, an insulating support, a second base plate, and a ground panel. The first base plate and the second base plate are respectively fixed to both ends of the insulating support and are parallel to each other. The first base plate is fixedly fitted together with the skirt base. A closed sliding groove is provided on the ground panel, and the second base plate is slidably disposed in the sliding groove. The electrode boiler is disposed on the skirt base, and the electrode boiler and the first base plate are respectively located on both sides of the skirt base. The first base plate, the insulating support, and the second base plate are fixed together to form a support assembly. There are an even number of support assemblies, and all support assemblies are distributed equidistantly and with equal arc around the central axis of the electrode boiler. The ground panel is used to fix it to the ground, and the coefficient of dynamic friction between the second base plate and the ground panel does not exceed 0.

2. The skirt support includes a cylinder and a support plate. The cylinder is vertically fixed on the support plate. The first base plate is fixedly fitted together with the support plate. The electrode boiler is clamped at the opening of the cylinder. The expansion amount at the opening of the cylindrical clamp electrode boiler is consistent with the expansion amount of the electrode boiler. The closer the cylinder is to the support plate, the smaller its expansion amount. When the expansion amount is transferred to the support plate, the expansion amount of the support plate has been reduced compared with the expansion amount of the electrode boiler.

2. The neutral point ungrounded electrode boiler support structure as described in claim 1, characterized in that, Each support assembly has four insulating supports, and the four insulating supports are in a parallel state.

3. The neutral point ungrounded electrode boiler support structure as described in claim 1, characterized in that, The second base plate is a block-shaped base plate, and the slide is a square closed slide.

4. The neutral point ungrounded electrode boiler support structure as described in claim 1, characterized in that, The support plate is provided with an embedding groove, and the first base plate is embedded in the embedding groove.

5. The neutral point ungrounded electrode boiler support structure as described in claim 1, characterized in that, The second base plate is made of metal, the ground panel is made of metal, and the coefficient of dynamic friction between the second base plate and the ground panel is 0.1 to 0.

2.

6. The neutral point ungrounded electrode boiler support structure as described in claim 1, characterized in that, The number of the floor panels is equal to the number of the second base plates, and each floor panel is provided with a sliding groove.

7. The neutral point ungrounded electrode boiler support structure as described in claim 6, characterized in that, All the floor panels are located in one plane.

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