Electrode boiler with inner and outer tube insulation separation structure

Abstract

The utility model provides an inner and outer tube insulation separation structure for electrode boiler relates to electrode boiler equipment field, including outer tube, inner tube, three -phase electrode and steam output pipe, be equipped with insulation support mechanism between the outer tube and inner tube, the insulation support mechanism includes first insulation support and second insulation support, first insulation support and second insulation support all are flared, and all are made of ceramic, the inner wall of outer tube is located the position of inner tube outside and is equipped with annular groove, first insulation support is located the bottom of annular groove, the bottom of first insulation support is annular array distribution and has a plurality of groups of support block, there is the slot for pipeline to pass between a plurality of groups of support block, the top of first insulation support is equipped with insulation ring, the top of insulation ring is equipped with second insulation support, the utility model discloses that the inside of outer tube is provided with first insulation support, and when installing, the bottom is supported through a plurality of groups of support blocks on first insulation support.

Description

Technical Field

[0001] This utility model relates to the field of electrode boiler equipment technology, and in particular to an inner and outer cylinder insulation separation structure for electrode boilers. Background Technology

[0002] Electric boilers are a type of zero-emission thermal energy equipment. Currently, electric boilers mainly use 380V low-voltage electricity and resistance tube heating. This heating method limits the total power of the boiler. The heating power of a single unit generally does not exceed 3MW. Moreover, low-voltage power supply requires the configuration of transformers, high and low voltage distribution cabinets and other equipment, resulting in large investment in the power system and large power loss. In the existing technology, when designing electrode boilers, the inner cylinder of the electrode boiler is usually fixedly connected to the top of the boiler. Since the inner cylinder of the boiler also needs to bear the material, after a long period of use, the connection between the inner cylinder and the top will become loose and the position of the inner cylinder will drop. For example, the utility model patent with authorization announcement number CN207963044U discloses an electrode-type hot water boiler with an inner and outer double-cylinder structure. The boiler body consists of an inner cylinder and an outer cylinder, which are connected to each other via a circulating water pump. Heating electrodes are suspended from the upper part of the inner cylinder, and a downpipe and an inlet pipe are respectively located on the left and right sides of the lower part of the inner cylinder. A liquid level detection connector is also provided at the edge of the inner cylinder. The inlet pipe is connected to the outlet end of the circulating water pump, and the inlet end of the circulating water pump is connected to the outer cylinder. The beneficial effects of this utility model are: by designing the boiler structure as an electrode-type inner and outer double-cylinder structure, the water inside the inner and outer cylinders can be heated uniformly; the uniformly distributed three-phase electrodes can form a reasonable current field after being energized, ensuring three-phase balance; the inner cylinder is insulated from the outer cylinder, thus preventing leakage and ensuring boiler safety. However, there is a problem that the inner cylinder cannot be supported from below. Therefore, this utility model proposes an inner and outer cylinder insulated separation structure for electrode boilers to solve the problems existing in the prior art. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes an inner and outer cylinder insulation separation structure for an electrode boiler. The outer cylinder of this structure has a first insulating support inside. During installation, the inner cylinder is supported at its bottom by multiple sets of support blocks on the first insulating support. The slots between these support blocks allow water pipes to pass through. An insulating ring is positioned above the first insulating support, and a second insulating support is mounted on the insulating ring. The second insulating support is installed together with the inner cylinder, and the insulating ring further supports both the second insulating support and the inner cylinder, ensuring the stability of the inner cylinder installation.

[0004] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: an inner and outer cylinder insulation separation structure for an electrode boiler, comprising an outer cylinder, an inner cylinder, three-phase electrodes and a steam output pipe, wherein an insulation support mechanism is provided between the outer cylinder and the inner cylinder; The insulating support mechanism includes a first insulating support and a second insulating support. Both the first and second insulating supports are trumpet-shaped and made of ceramic. The inner wall of the outer cylinder has an annular groove located outside the inner cylinder. The first insulating support is located at the bottom of the annular groove. Multiple sets of support blocks are arranged in a circular array at the bottom of the first insulating support. There are slots between the multiple sets of support blocks for pipes to pass through. An insulating ring is provided above the first insulating support. A second insulating support is provided above the insulating ring. The second insulating support, the insulating ring, the first insulating support, and the inner cylinder form a sealed cavity. The outer cylinder is provided with a conveying pipe that is sealed and communicates with the sealed cavity.

[0005] A further improvement is that the support block is made of fluororubber filled with support material, and there are six sets of support blocks, all of which are semi-arc structures.

[0006] A further improvement is that a sealing ring is provided between the first insulating support and the inner cylinder. The sealing ring includes an upper sealing ring and a lower sealing ring. The upper sealing ring is located on the outer wall of the inner cylinder, and the lower sealing ring is located on the top of the first insulating support. The upper sealing ring and the lower sealing ring are sealed by the gravity of the inner cylinder.

[0007] A further improvement is that: the top of the second insulating support is provided with a mounting ring, and the upper end of the inner cylinder is provided with a mounting seat adapted to the mounting ring, and the mounting ring and the mounting seat are fixed together by bolts.

[0008] A further improvement is that: the top of the outer cylinder is provided with a hemispherical cover, and the hemispherical cover is sealed to the outer cylinder body by welding, and a top plate is detachably installed on the top of the hemispherical cover.

[0009] A further improvement is that the three-phase electrode and the steam output pipe are installed through the top plate, and a sealing sleeve is provided at the connection between the top plate and the three-phase electrode and the steam output pipe.

[0010] The beneficial effects of this utility model are as follows: The outer cylinder of this utility model is provided with a first insulating support inside. When the inner cylinder is installed, the bottom is supported by multiple sets of support blocks on the first insulating support. At the same time, the slots between the multiple sets of support blocks are used for water pipes to pass through. An insulating ring is provided above the first insulating support, and a second insulating support is provided on the insulating ring. The second insulating support is installed together with the inner cylinder. The insulating ring supports the second insulating support and the inner cylinder, further ensuring the stability of the inner cylinder installation. At the same time, the second insulating support, the insulating ring and the first insulating support form a sealed cavity. Insulating gas is delivered to the sealed cavity through the delivery pipe, so that the inner cylinder and the outer cylinder are insulated and separated, further increasing the safety of the device. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the outer cylinder of this utility model; Figure 2 This is a schematic diagram showing the insulation separation of the inner and outer cylinders of this utility model; Figure 3 This is a schematic diagram showing the connection between the inner cylinder and the second insulating support of this utility model; Figure 4 This is a schematic diagram showing the connection between the first insulating support and the outer cylinder of this utility model.

[0012] The components are: 1. Outer cylinder; 2. Inner cylinder; 3. Three-phase electrode; 4. Steam output pipe; 5. First insulating support; 6. Second insulating support; 7. Support block; 8. Insulating ring; 9. Conveying pipe; 10. Upper sealing ring; 11. Lower sealing ring; 12. Mounting ring; 13. Mounting seat; 14. Hemispherical cover; 15. Top plate; 16. Sealing sleeve. Detailed Implementation

[0013] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0014] according to Figures 1-4 As shown, this embodiment proposes an inner and outer cylinder insulation separation structure for an electrode boiler, including an outer cylinder 1, an inner cylinder 2, a three-phase electrode 3 and a steam output pipe 4, wherein an insulation support mechanism is provided between the outer cylinder 1 and the inner cylinder 2; The insulating support mechanism includes a first insulating support 5 and a second insulating support 6. Both the first insulating support 5 and the second insulating support 6 are trumpet-shaped and made of ceramic. The inner wall of the outer cylinder 1 is provided with an annular groove at the position outside the inner cylinder 2. The first insulating support 5 is located at the bottom of the annular groove. Multiple sets of support blocks 7 are distributed in a circular array at the bottom of the first insulating support 5. There are slots between the multiple sets of support blocks 7 for pipes to pass through. An insulating ring 8 is provided above the first insulating support 5. A second insulating support 6 is provided above the insulating ring 8. The second insulating support 6, the insulating ring 8, the first insulating support 5, and the inner cylinder 2 form a sealed cavity. The outer cylinder 1 is provided with a conveying pipe 9 that is sealed and connected to the sealed cavity.

[0015] The outer cylinder 1 of this device is equipped with a first insulating support 5. During installation, the inner cylinder 2 is supported at its bottom by multiple sets of support blocks 7 on the first insulating support 5. The slots between the multiple sets of support blocks 7 are used for water pipes to pass through. An insulating ring 8 is set above the first insulating support 5, and a second insulating support 6 is set on the insulating ring 8. The second insulating support 6 is installed together with the inner cylinder 2. The insulating ring 8 supports the second insulating support 6 and the inner cylinder 2, further ensuring the stability of the inner cylinder 2 installation. At the same time, the second insulating support 6, the insulating ring 8 and the first insulating support 5 form a sealed cavity. Insulating gas is delivered to the sealed cavity through the delivery pipe 9, so that the inner cylinder 2 is insulated and separated from the outer cylinder 1, further increasing the safety of the device.

[0016] The support block 7 is made of fluororubber filled support material, and there are six sets of support blocks 7, all of which are semi-arc structures.

[0017] A sealing ring is provided between the first insulating support 5 and the inner cylinder 2. The sealing ring includes an upper sealing ring 10 and a lower sealing ring 11. The upper sealing ring 10 is located on the outer wall of the inner cylinder 2, and the lower sealing ring 11 is located on the top of the first insulating support 5. The upper sealing ring 10 and the lower sealing ring 11 are sealed by the gravity of the inner cylinder 2.

[0018] The second insulating support 6 is provided with a mounting ring 12 at its top, and the upper end of the inner cylinder 2 is provided with a mounting seat 13 that is adapted to the mounting ring 12. The mounting ring 12 and the mounting seat 13 are fixed together by bolts.

[0019] The weight of the inner cylinder 2 creates a seal between the upper sealing ring 10 and the lower sealing ring 11, which, together with the connection between the mounting ring 12 and the mounting base 13, ensures the sealing of the sealing cavity.

[0020] The top of the outer cylinder 1 is provided with a hemispherical cover 14, which is sealed to the cylinder body of the outer cylinder 1 by welding. The top of the hemispherical cover 14 is detachably installed with a top plate 15.

[0021] The three-phase electrode 3 and the steam output pipe 4 are installed through the top plate 15, and a sealing sleeve 16 is provided at the connection between the top plate 15 and the three-phase electrode 3 and the steam output pipe 4.

[0022] The electrode boiler uses an inner and outer cylinder insulation separation structure. The first insulating support 5 is supported by an annular groove, and the first insulating support 5 supports the inner cylinder 2, thereby ensuring the stability of the inner cylinder 2. At the same time, an insulating ring 8 is set above the first insulating support 5 to form a sealed cavity with the second insulating support 6. Insulating gas is filled into the cavity through the conveying pipe 9, thereby achieving insulation separation between the inner cylinder 2 and the outer cylinder 1, further increasing the safety of the device.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An inner and outer cylinder insulation separation structure for an electrode boiler, comprising an outer cylinder (1), an inner cylinder (2), three-phase electrodes (3), and a steam output pipe (4), characterized in that: An insulating support mechanism is provided between the outer cylinder (1) and the inner cylinder (2); The insulating support mechanism includes a first insulating support (5) and a second insulating support (6). Both the first insulating support (5) and the second insulating support (6) are horn-shaped and made of ceramic. The inner wall of the outer cylinder (1) is provided with an annular groove at the position outside the inner cylinder (2). The first insulating support (5) is located at the bottom of the annular groove. The bottom of the first insulating support (5) is arranged in an annular array with multiple sets of support blocks (7). There are slots between the multiple sets of support blocks (7) for pipes to pass through. An insulating ring (8) is provided above the first insulating support (5). A second insulating support (6) is provided above the insulating ring (8). The second insulating support (6), the insulating ring (8), the first insulating support (5), and the inner cylinder (2) form a sealed cavity. The outer cylinder (1) is provided with a conveying pipe (9) that is sealed and connected to the sealed cavity.

2. The inner and outer cylinder insulation separation structure for an electrode boiler according to claim 1, characterized in that: The support block (7) is made of fluororubber filled support material. There are six sets of the support block (7), and all six sets of the support block (7) are semi-arc structures.

3. The inner and outer cylinder insulation separation structure for an electrode boiler according to claim 1, characterized in that: A sealing ring is provided between the first insulating support (5) and the inner cylinder (2). The sealing ring includes an upper sealing ring (10) and a lower sealing ring (11). The upper sealing ring (10) is located on the outer wall of the inner cylinder (2), and the lower sealing ring (11) is located on the top of the first insulating support (5). The upper sealing ring (10) and the lower sealing ring (11) are sealed by the gravity of the inner cylinder (2).

4. The inner and outer cylinder insulation separation structure for an electrode boiler according to claim 1, characterized in that: The second insulating support (6) is provided with a mounting ring (12) at the top, and the upper end of the inner cylinder (2) is provided with a mounting seat (13) that is compatible with the mounting ring (12). The mounting ring (12) and the mounting seat (13) are fixed together by bolts.

5. The inner and outer cylinder insulation separation structure for an electrode boiler according to claim 1, characterized in that: The top of the outer cylinder (1) is provided with a hemispherical cover (14), and the hemispherical cover (14) and the cylinder body of the outer cylinder (1) are sealed by welding. The top of the hemispherical cover (14) is detachably installed with a top plate (15).

6. The inner and outer cylinder insulation separation structure for an electrode boiler according to claim 5, characterized in that: The three-phase electrode (3) and the steam output pipe (4) are installed through the top plate (15), and a sealing sleeve (16) is provided at the connection between the top plate (15) and the three-phase electrode (3) and the steam output pipe (4).

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