A self-leveling three-phase iron cake column structure and assembly method

Abstract

The present invention relates to the technical field of reactor assembly processes, and particularly to a self-leveling three-phase iron cake column structure and an assembly method. The structure includes an upper iron yoke of the iron core, a lower iron yoke of the iron core, and three iron core columns. The three iron core columns are arranged between the upper iron yoke and the lower iron yoke of the iron core. Each iron core column includes alternately stacked iron core cakes and air gap layers. A fiber grid is provided on the surface of the air gap layer close to the upper iron yoke of the iron core. The fiber grid includes a fiber grid and a reinforcing glue. The reinforcing glue is applied to the fiber grid, and an anti-sticking film layer is installed on the surface of the reinforcing glue. A self-leveling three-phase iron cake column structure of the present invention can level the three iron core columns of a three-phase iron core reactor simultaneously and adapt to the lower surface of the upper iron yoke, ensuring the pressing quality. In actual production, the pressing work of the reactor coil and the large cake column can be completed at one time in cooperation with a pressing tooling. After the overall gas-phase drying of the body of the apparatus, there is no need for secondary pressing, ensuring the pressing quality.

Description

Technical Field

[0001] The present invention relates to the technical field of reactor assembly processes, and specifically to a self-leveling three-phase iron cake column structure and an assembly method therefor. Background Art

[0002] The vibration and noise of a reactor are key performance indicators of the reactor and are difficult points in reactor manufacturing. How to ensure the compression of the reactor is an important factor. The structure of a core reactor mainly consists of a core and a coil. The core column with the coil generally has an air gap. For a three-phase core reactor product, the upper yoke is designed as a whole. Compared with a single-phase reactor, the consistency of its three phases is a difficult point and a key point that must be solved in the manufacturing process of a three-phase core reactor.

[0003] In the traditional assembly process of an iron cake column, the height is mainly adjusted by manually measuring and increasing or decreasing the upper insulating ring. Due to reasons such as measurement accuracy, different tolerances and compression ratios of the insulating rings, it is very difficult for the three-phase iron cake columns to be completely consistent, which affects the final pressing quality and needs to be improved. Therefore, a new structure and method for leveling the height of a three-phase iron cake column are needed to meet the requirement of simultaneously compressing the three iron cake columns of a three-phase core reactor. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention provides a self-leveling three-phase iron cake column structure and an assembly method therefor.

[0005] The present invention is realized through the following technical solutions:

[0006] A self-leveling three-phase iron cake column structure includes an upper core yoke, a lower core yoke, and a core column. The core column is arranged between the upper core yoke and the lower core yoke. The core column includes alternately stacked iron cake and air gap layers. A fiber grid is provided on the surface of the air gap layer close to the upper core yoke. The fiber grid includes a fiber grid and a reinforcing glue. The reinforcing glue is applied to the fiber grid, and an anti-sticking film layer is installed on the surface of the reinforcing glue.

[0007] Preferably, the air gap layer is several pieces of marble or porcelain stone.

[0008] Preferably, the reinforcing glue is epoxy glue.

[0009] Preferably, the anti-sticking film layer is a polyester film.

[0010] Preferably, the height of the core column is less than the vertical distance between the upper core yoke and the lower core yoke.

[0011] Preferably, the tolerance of the core column in height is ±0.2 mm.

[0012] Preferably, the three core columns are respectively an A-phase core column, a B-phase core column and a C-phase core column, the height of the B-phase core column is greater than that of the A-phase core column, and the height of the A-phase core column is the same as that of the C-phase core column; the fiber grid includes an A-phase fiber grid, a B-phase fiber grid and a C-phase fiber grid, the A-phase fiber grid is arranged on the A-phase core column, the B-phase fiber grid is arranged on the B-phase core column, and the C-phase fiber grid is arranged on the C-phase core column; the total thickness of the B-phase fiber grid is greater than the thickness of the A-phase fiber grid, and the thickness of the A-phase fiber grid is the same as the thickness of the C-phase fiber grid.

[0013] A method for assembling a self-leveling three-phase discus column structure, using the self-leveling three-phase discus column structure, characterized in that the operation steps are as follows:

[0014] (1) Install the A-phase fiber grid, the B-phase fiber grid and the C-phase fiber grid onto the A-phase iron core column, the B-phase iron core column and the C-phase iron core column respectively;

[0015] (2) The reinforcing glue is prepared to a very viscous non-flowing state, and the reinforcing glue is squeezed to the center of the air gap layer on the A-phase iron core column, the B-phase iron core column, and the C-phase iron core column; and an anti-sticking film layer is installed on the A-phase fiber grid, the B-phase fiber grid, and the C-phase fiber grid respectively;

[0016] (3) Ensure that the iron yoke 1 on the core is level, and install it on the top of the B-phase core column in a balanced manner with the clamping tool. At this time, the reinforcing glue on the A-phase core column and the C-phase core column is pressed into a horizontal state at the same time until it maintains the same level and height as the B-phase discus column.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The self-leveling three-phase discus column structure of the present invention can simultaneously level the three core columns of the three-phase iron core reactor and adapt to the lower surface of the upper iron yoke to ensure the pressing quality. In actual production, the pressing work of the reactor coil and the discus column can be completed at one time with the pressing tool. After the overall gas phase drying of the device body, no secondary pressing is required to ensure the pressing quality.

[0019] In a self-leveling three-phase discus column structure of the present invention, the B-phase iron core column is heightened, so that a certain gap is formed between the B-phase iron core column and the A-phase iron core column and the C-phase iron core column, and the reinforcing glue on the upper surface of the upper air gap is adaptively leveled with the laminations of the iron yoke on the iron core. After the reinforcing glue is completely solidified, the reinforcing glue is less affected by temperature and humidity changes, and can be cured through the fiber reinforcement of the glass fiber mesh cloth. At this time, it can be considered that the three-phase iron core column has been leveled and adapted to the upper iron yoke. The additional anti-sticking film layer is used for anti-sticking after epoxy curing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of a self-leveling three-phase iron disc column structure of the present invention;

[0021] Figure 2 is Figure 1 Schematic side view structure;

[0022] Figure 3 Partial sketch of the iron disc and air gap at the uppermost part of the iron core column;

[0023] Figure 4 Schematic top view structure of the large iron disc of the iron core and the air gap.

[0024] In the figure, 1, upper iron yoke of the iron core; 2, lower iron yoke of the iron core; 3, iron core column; 3-1, iron core column of phase A; 3-2, iron core column of phase B; 3-3, iron core column of phase C; 4, iron disc; 5, air gap layer; 6, fiber grid; 7, reinforcing glue; 8, anti-sticking film layer. Specific implementation manner

[0025] The following further elaborates on the present invention in conjunction with specific embodiments, which is an explanation rather than a limitation of the present invention.

[0026] The present invention discloses a self-leveling three-phase iron disc column structure. Referring to Figure 1 , 2 , it includes an upper iron yoke 1 of the iron core, a lower iron yoke 2 of the iron core, and an iron core column 3. The iron core column 3 is arranged between the upper iron yoke 1 and the lower iron yoke 2 of the iron core. The height of the iron core column 3 is less than the vertical distance between the upper iron yoke 1 and the lower iron yoke 2 of the iron core, and the tolerance of the iron core column 3 in height is ±0.2 mm.

[0027] Referring to Figure 3 , 4 , the iron core column 3 includes alternately stacked iron discs 4 and air gap layers 5. Among them, the iron discs 4 are made of silicon steel sheets, vacuum-cast, solidified, and ground into shape. The air gap layer 5 is composed of several cylindrical marbles or porcelain stones. The surface of the air gap layer 5 close to the upper iron yoke 1 of the iron core is provided with a fiber grid, which includes a fiber grid 6 and a reinforcing glue 7. The reinforcing glue 7 is applied on the fiber grid 6, and an anti-sticking film layer is installed on the surface of the reinforcing glue 7. Among them, the reinforcing glue 7 is epoxy glue, and the anti-sticking film layer is polyester film.

[0028] The three core columns 3 are respectively A-phase core column 3-1, B-phase core column 3-2 and C-phase core column 3-3. The height of B-phase core column 3-2 is greater than that of A-phase core column 3, and the height of A-phase core column 3-1 is the same as that of C-phase core column 3-3. The fiber grid 6 includes A-phase fiber grid, B-phase fiber grid and C-phase fiber grid. The A-phase fiber grid is arranged on the A-phase core column 3-1, the B-phase fiber grid is arranged on the B-phase core column 3-2, and the C-phase fiber grid is arranged on the C-phase core column 3-3. The total thickness of the B-phase fiber grid is greater than that of the A-phase fiber grid, and the thickness of the A-phase fiber grid is the same as that of the C-phase fiber grid. In this embodiment, the fiber grid 6 is a glass fiber grid.

[0029] A method for assembling a self-leveling three-phase discus column structure, using the self-leveling three-phase discus column structure, characterized in that the operation steps are as follows:

[0030] (1) Install the A-phase fiber grid, the B-phase fiber grid and the C-phase fiber grid onto the A-phase iron core column 3-1, the B-phase iron core column 3-2 and the C-phase iron core column 3-3 respectively;

[0031] (2) The reinforcing glue 7 is prepared to be extremely viscous and non-flowing, and the reinforcing glue 7 is squeezed to the center of the air gap layer 5 on the A-phase iron core column 3-1, the B-phase iron core column 3-2, and the C-phase iron core column 3-3; and the anti-sticking film layer 8 is installed on the A-phase fiber grid, the B-phase fiber grid, and the C-phase fiber grid respectively;

[0032] (3) Ensure that the iron yoke 11 on the core is level, and use the clamping tool to install it on the top of the B-phase core column 3-2 in a balanced manner. At this time, the reinforcing glue 7 on the A-phase core column 3-1 and the C-phase core column 3-3 are pressed into a horizontal state at the same time until they maintain the same level and height as the B-phase discus column.

[0033] The iron yoke 1 on the core is horizontally installed above the B-phase core column 3-2, so that the epoxy glue + glass fiber mesh cloth mixture at the top of the A-phase core column 3-1 and the C-phase core column 3-3 can be kept at the same level and height as the B-phase core column 3-2. After the epoxy glue + glass fiber is cured, an epoxy board is formed to complete the leveling.

[0034] For example, when the height of the core column 3 and the vertical distance between the core upper yoke 1 and the core lower yoke 2 is 0.6 mm, the thickness of the B-phase fiber grid is 0.6 mm, and the thickness of the A-phase fiber grid and the C-phase fiber grid are both 0.2 mm, the adjustable amount is 0.4 mm. The leveling steps are as follows:

[0035] (1) Ensure the flatness and verticality of the upper iron yoke 1 and the lower iron yoke 2 of the core; and ensure that the temperature of the construction environment is consistent;

[0036] (2) Installing the A-phase fiber grid, the B-phase fiber grid and the C-phase fiber grid onto the A-phase iron core column 3-1, the B-phase iron core column 3-2 and the C-phase iron core column 3-3 respectively;

[0037] (3) The reinforcing glue 7 is prepared to be extremely viscous and non-flowing, and the reinforcing glue 7 is squeezed to the center of the air gap layer 5 on the A-phase iron core column 3-1, the B-phase iron core column 3-2, and the C-phase iron core column 3-3; and the anti-sticking film layer 8 is installed on the A-phase fiber grid, the B-phase fiber grid, and the C-phase fiber grid respectively;

[0038] (4) Ensure that the iron yoke 11 on the core is level and install it on the top of the B-phase core column 3-2 in a balanced manner with the clamping tool. At this time, the reinforcing glue 7 on the A-phase core column 3-1 and the C-phase core column 3-3 are pressed into a horizontal state at the same time until they maintain the same level and height as the B-phase core column 3-2.

[0039] The epoxy glue on the upper surface of the upper air gap of the core column 3 is adaptively leveled with the laminations of the upper iron yoke 1 of the core. After the epoxy glue layer is completely solidified, the epoxy glue can be cured by the fiber reinforcement of the glass fiber mesh cloth and is less affected by temperature and humidity changes. At this time, it can be considered that the three-phase core column 3 has been leveled and adapted to the upper iron yoke.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to impose any limitation on the technical solution of the present invention. Those skilled in the art should understand that, without departing from the spirit and principles of the present invention, the technical solution can also be subjected to several simple modifications and substitutions, and these modifications and substitutions are also within the scope of protection covered by the claims.

Claims

1. A self-leveling three-phase disc column structure, characterized in that, The invention comprises an upper iron yoke (1) of the iron core, a lower iron yoke (2) of the iron core and three iron core columns (3), wherein the three iron core columns (3) are arranged between the upper iron yoke (1) of the iron core and the lower iron yoke (2), each of the iron core columns (3) comprises alternately stacked iron core cakes (4) and air gap layers (5), a fiber mesh component is arranged on the surface of the air gap layer (5) close to the upper iron yoke (1) of the iron core, the fiber mesh component comprises a fiber mesh (6) and a reinforcing glue (7), the reinforcing glue (7) is applied on the fiber mesh (6), and an anti-sticking film layer (8) is installed on the surface of the reinforcing glue (7); The height of the core column (3) is smaller than the vertical distance between the core upper iron yoke (1) and the core lower iron yoke (2); The three core columns (3) are respectively an A-phase core column (3-1), a B-phase core column (3-2) and a C-phase core column (3-3); the height of the B-phase core column (3-2) is greater than that of the A-phase core column (3); the height of the A-phase core column (3-1) is the same as that of the C-phase core column (3-3); the fiber grid (6) comprises an A-phase fiber grid, a B-phase fiber grid and a C-phase fiber grid; the A-phase fiber grid is arranged on the A-phase core column (3-1), the B-phase fiber grid is arranged on the B-phase core column (3-2), and the C-phase fiber grid is arranged on the C-phase core column (3-3); the total thickness of the B-phase fiber grid is greater than the thickness of the A-phase fiber grid, and the thickness of the A-phase fiber grid is the same as that of the C-phase fiber grid.

2. The self-leveling three-phase iron cake column structure according to claim 1, wherein The air gap layer (5) is a plurality of marbles or porcelain stones.

3. The self-leveling three-phase iron cake column structure according to claim 1, characterized in that, The reinforcing glue (7) is epoxy glue.

4. The self-leveling three-phase iron cake column structure according to claim 1, characterized in that The anti-adhesive film layer (8) is a polyester film.

5. The self-leveling three-phase iron cake column structure according to claim 1, characterized in that, The height tolerance of the core column (3) is ±0.2 mm.

6. An assembly method for a self-leveling three-phase iron cake column structure, which adopts the self-leveling three-phase iron cake column structure described in any one of claims 1 to 5, and is characterized in that, The steps are as follows: (1) Installing the A-phase fiber grid, the B-phase fiber grid and the C-phase fiber grid onto the A-phase iron core column (3-1), the B-phase iron core column (3-2) and the C-phase iron core column (3-3) respectively; (2) The reinforcing glue (7) is prepared to be extremely viscous and non-flowing, and the reinforcing glue (7) is squeezed onto the center of the air gap layer (5) on the A-phase iron core column (3-1), the B-phase iron core column (3-2), and the C-phase iron core column (3-3); and an anti-sticking film layer (8) is installed on the A-phase fiber grid, the B-phase fiber grid, and the C-phase fiber grid respectively; (3) Ensure that the iron yoke (1) on the core is level and install it on the top of the B-phase core column (3-2) in a balanced manner with the clamping tool. At this time, the reinforcing glue (7) on the A-phase core column (3-1) and the C-phase core column (3-3) are pressed into a horizontal state at the same time until they maintain the same level and height as the B-phase core column (3-2).

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