CN107564700B - Method for fixing optical fiber in wiring process inside transformer - Google Patents

Abstract

The invention discloses a method for fixing an optical fiber in the process of routing inside a transformer, comprising the following steps: A. Insert the optical fiber into the transformer winding gap to make several optical fiber bending parts, and use insulating tapes at both ends of the optical fiber bending part to carry out Temporarily fixed; B. The surface tension of the optical fiber gradually decreases from the end located inside the transformer to the end located outside the transformer; C. When the two sections of optical fiber appear parallel to each other and the distance is smaller than the threshold, the surface tension of the two sections of optical fiber remains linear Relevant; D. When the two optical fibers cross each other, the optical fiber located below passes through any fiber bending part of the optical fiber located above; E. When the optical fiber is completely penetrated into place, the surface tension of the optical fiber is subjected to secondary Adjustment; F. Paste and fix the optical fiber. The invention can improve the deficiencies of the prior art and improve the stability of the optical fiber working inside the transformer.

Description

A fixing method of optical fiber in the internal routing process of transformer

technical field

The invention relates to the technical field of transformer assembly, in particular to a fixing method for an optical fiber in the process of routing inside a transformer.

Background technique

In the prior art, most of the working parameters such as the temperature of the inner coil of the transformer are measured by an optical fiber probe. This requires routing optical fibers inside the transformer. In the prior art, there is no special design for optical fiber layout, which leads to the fact that during the working process of the transformer, the optical fiber is easily affected by the internal environment of the transformer, resulting in interference and interruption of signal transmission.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a fixing method for the routing process of the optical fiber inside the transformer, which can solve the deficiencies of the prior art and improve the working stability of the optical fiber inside the transformer.

In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows.

A method for fixing an optical fiber in a routing process inside a transformer, comprising the following steps:

A. Insert the optical fiber into the transformer winding gap, make an optical fiber bending part every 30-50cm, and use insulating tape to temporarily fix the two ends of the optical fiber bending part;

B. The surface tension of the optical fiber gradually decreases from the end located inside the transformer to the end located outside the transformer; the surface tension of the bending part of each optical fiber is smaller than the surface tension of the two ends of the fiber;

C. When the two sections of optical fiber appear parallel to each other and the distance between them is less than the threshold value, the surface tension of the two sections of optical fiber remains linearly related;

D. When the two optical fibers cross each other, the optical fiber located below passes through any fiber bending portion of the optical fiber located above;

E. After the optical fiber is completely penetrated into place, the surface tension of the optical fiber is adjusted twice;

F. Remove the insulating tape and use insulating glue to stick and fix the optical fiber.

Preferably, in step A, the distance between the position where the insulating tape is fixed and the two ends of the optical fiber bending portion is 1.5-3 cm.

Preferably, in step B, the surface tension of the optical fiber in the straight section decreases linearly.

Preferably, in step B, the surface tension of any fiber bending part at different positions is kept the same, and the surface tension of the fiber bending part is,

Among them, F is the surface tension of the bending part of the optical fiber, and F ₁ and F ₂ are the surface tension of the regions at both ends of the bending part of the optical fiber, respectively.

Preferably, in step C, the threshold value of the distance between the two optical fibers is 10 cm.

Preferably, in step D, a spacer is arranged between the optical fiber passing through the lower part of the optical fiber bending part and the optical fiber bending part, and the spacer block is interference fit with the upper optical fiber bending part and the lower optical fiber respectively.

Preferably, in step E, adjust the surface tension of the straight-line fiber segment by segment from the inside to the outside, so that it maintains a linear decreasing trend, and the surface tension change rate is reduced to 30% of the laying time; The surface tension of the fiber is adjusted according to the relationship between the surface tension of the optical fiber bending part and the surface tension at both ends of the optical fiber bending part determined in step B.

The beneficial effects brought by the above technical solutions are: the present invention reduces the optical fiber transmission quality degradation caused by environmental factors such as the internal temperature of the transformer by improving the method for fixing the optical fiber inside the transformer. The optical fiber bending part not only provides sufficient buffer margin for the optical fiber inside the transformer, but also realizes the cross-laying between the optical fibers. The surface tension control range of each segment of the optical fiber can effectively improve the uniformity of the overall surface tension change during the working period after the optical fiber is laid, and reduce the signal transmission problem caused by the excessive change of the optical fiber surface tension.

Description of drawings

FIG. 1 is a structural diagram of a fixture in a specific embodiment of the present invention.

FIG. 2 is a structural diagram of a first buckle in an embodiment of the present invention.

FIG. 3 is a structural diagram of a second buckle in an embodiment of the present invention.

FIG. 4 is a structural diagram of a third buckle in an embodiment of the present invention.

In the figure: 1. Fixture; 2. The first through hole; 3. The second through hole; 4. The first buckle; 5. The first limit slot; 6. The first spring body; 7. The first adjusting bolt ; 8. Pull rope; 9. Second adjusting bolt; 10. Second buckle; 11. Third adjusting bolt; 12. Support frame; 13. Locking bolt; 14. Support arm; 15. Third buckle; 16. The second limit slot.

Detailed ways

The standard parts used in the present invention can be purchased from the market, the special-shaped parts can be customized according to the description in the description and the drawings, and the specific connection methods of each part are all mature bolts, rivets, welding in the prior art. , pasting and other conventional means will not be described in detail here.

A specific embodiment of the present invention includes the following steps:

A. Insert the optical fiber into the transformer winding gap, make an optical fiber bending part every 45cm, and use insulating tape to temporarily fix the two ends of the optical fiber bending part;

B. The surface tension of the optical fiber gradually decreases from the end located inside the transformer to the end located outside the transformer; the surface tension of the bending part of each optical fiber is smaller than the surface tension of the two ends of the fiber;

C. When the two sections of optical fiber appear parallel to each other and the distance between them is less than the threshold value, the surface tension of the two sections of optical fiber remains linearly related;

D. When the two optical fibers cross each other, the optical fiber located below passes through any fiber bending portion of the optical fiber located above;

E. After the optical fiber is completely penetrated into place, the surface tension of the optical fiber is adjusted twice;

F. Remove the insulating tape and use insulating glue to stick and fix the optical fiber.

In step A, the distance between the position where the insulating tape is fixed and the two ends of the optical fiber bend is 2 cm.

In step B, the surface tension of the straight segment optical fiber is linearly reduced.

In step B, the surface tension of any optical fiber bending part at different positions remains the same, and the surface tension of the optical fiber bending part is,

Among them, F is the surface tension of the bending part of the optical fiber, and F ₁ and F ₂ are the surface tension of the regions at both ends of the bending part of the optical fiber, respectively.

In step C, the threshold value of the distance between the two optical fibers is 10 cm.

In step D, a spacer is arranged between the optical fiber passing through the lower part of the optical fiber bending part and the bending part of the optical fiber, and the spacer is interference fit with the upper optical fiber bending part and the lower optical fiber respectively.

In step E, adjust the surface tension of the straight fiber segment by segment from the inside to the outside, so as to maintain a linear decreasing trend, and reduce the surface tension change rate to 30% of the laying time; then adjust the surface tension of the fiber bend Adjust according to the relationship between the surface tension of the optical fiber bending part determined in step B and the surface tension at both ends of the optical fiber bending part.

The applicant found in practical work that this method of using insulating glue to fix the optical fiber has the problems that the glue is easy to age, and it is difficult to adjust after the deviation of the fixed position occurs. Furthermore, in view of this practical problem, the applicant has developed a fixture specially used for the routing of optical fibers in the transformer.

1-4, the fixture 1 is provided with two first through holes 2 parallel to each other, the bottom of the first through hole 2 is provided with a first buckle 4, and the first buckle 4 is slidably provided with a first limit Position slot 5, the optical fiber is in clearance fit with the first limit slot 5, the two sides of the first limit slot 5 are connected with a first spring body 6, the first spring body 6 is connected with the first adjustment bolt 7, and the first limit slot 5. The bottom is connected with a pulling rope 8, and the pulling rope 8 is fixed on the second adjusting bolt 9. A second through hole 3 is provided in the fixture 1. The second through hole 3 is perpendicular to the first through hole 2 on the left side and penetrates the first through hole 2 on the left side. The side wall is provided with a third buckle 15 , and a second limit groove 16 is fixedly connected to the third buckle 15 , and the optical fiber is in an interference fit with the second limit groove 16 . A second buckle 10 is provided on the right side wall of the first through hole 2 on the right side, a third adjustment bolt 11 is threadedly connected to the second buckle 10, and a support frame 12 is slidably sleeved on the third adjustment bolt 11. The support frame 12 is connected with a support arm 14 through locking bolts 13 .

When the two optical fibers are laid in parallel, the two optical fibers are respectively inserted into the first through hole 2, and the first buckle 4 is used to adjust the horizontal position of the two optical fibers. When the two optical fibers need to be laid crosswise, erect the fixture 1 so that the first through hole 2 on the left is located below, and place the fiber bending part in the upper first through hole 2, and the fiber passing through the bending part of the fiber The optical fiber is placed in the second through hole 3 , the bending degree and tension of the bent portion of the optical fiber are adjusted by the second buckle 10 , and the straight section of the optical fiber is fixed by the third buckle 15 .

In the description of the present invention, it should be understood that the terms "portrait", "horizontal", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or It is implied that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the description are only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have Various changes and modifications fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. A method for fixing optical fibers in the process of routing inside a transformer is characterized by comprising the following steps:

A. penetrating an optical fiber into a gap of a transformer winding, manufacturing an optical fiber bending part every 30-50 cm, and temporarily fixing two ends of the optical fiber bending part by using insulating tapes; a straight-line optical fiber is arranged between two adjacent optical fiber bending parts;

B. the surface tension of the optical fiber is gradually reduced from one end positioned inside the transformer to one end positioned outside the transformer; the surface tension of each optical fiber bending part area is smaller than that of the two end areas;

C. when the two optical fibers are in a region which is parallel to each other and the distance between the two optical fibers is smaller than the threshold value, the surface tensions of the two optical fibers keep linear correlation;

D. when the two sections of optical fibers are crossed with each other, the optical fiber at the lower part passes through any optical fiber bending part of the optical fiber at the upper part;

E. after the optical fiber is completely penetrated in place, secondarily adjusting the surface tension of the optical fiber;

F. and (4) removing the insulating adhesive tape, and adhering and fixing the optical fiber by using insulating glue.

2. The method for fixing the optical fiber in the process of routing inside the transformer according to claim 1, wherein: in the step A, the distance between the fixed position of the insulating tape and the two ends of the bent part of the optical fiber is 1.5-3 cm.

3. The method for fixing the optical fiber in the process of routing inside the transformer according to claim 1, wherein: in step B, the surface tension of the straight-line segment fiber is linearly reduced.

4. The method for fixing the optical fiber in the process of routing inside the transformer according to claim 2, wherein: in the step B, the surface tension of different positions of any one optical fiber bending part is kept consistent, the surface tension of the optical fiber bending part is,

wherein F is the surface tension of the bent part of the optical fiber, F₁And F₂Respectively the surface tension of the two end regions of the bent portion of the optical fiber.

5. The method for fixing the optical fiber in the process of routing inside the transformer according to claim 1, wherein: in the step C, the threshold value of the distance between the two sections of optical fibers is 10 cm.

6. The method for fixing the optical fiber in the process of routing inside the transformer according to claim 1, wherein: and D, arranging a cushion block between the optical fiber passing through the lower part of the optical fiber bending part and the optical fiber bending part, wherein the cushion block is in interference fit with the optical fiber bending part above and the optical fiber below respectively.

7. The method for fixing the optical fiber during the routing process inside the transformer according to claim 4, wherein: step E, adjusting the surface tension of the straight-line section optical fiber section by section from inside to outside to keep the linear reduction trend of the straight-line section optical fiber, and reducing the surface tension change rate to 30% of that of the straight-line section optical fiber during arrangement; and then adjusting the surface tension of the optical fiber bending part according to the relation between the surface tension of the optical fiber bending part and the surface tension of the two ends of the optical fiber bending part determined in the step B.

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