CN216311571U

CN216311571U - Fixed supporting structure of built-in CT of reactor

Info

Publication number: CN216311571U
Application number: CN202121602069.3U
Authority: CN
Inventors: 高国建; 苏勇; 李军; 刘占千; 韩帅; 李学成; 李文杰; 李成君; 徐晓明; 王献
Original assignee: Shandong Power Equipment Co Ltd
Current assignee: Shandong Power Equipment Co Ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-04-15
Anticipated expiration: 2031-07-14

Abstract

The utility model relates to a fixed supporting structure of a built-in CT of a pouring type reactor, which comprises: the support frame is of a T-shaped structure and comprises a support positioning flat plate and support positioning nails which are integrally formed, the adapter plate is provided with bolt holes, the support positioning flat plate is provided with corresponding bolt holes, and the adapter plate is fixedly connected with the support positioning flat plate through bolts; the pour base includes: the positioning pipe is a hollow steel pipe with a square cross section, the lower end of the positioning pipe is fixedly connected with the upper surface of the bottom of an oil tank in a welding mode, the insulation part of a U-shaped structure is arranged in the positioning pipe, the quick-drying epoxy resin is poured into a cavity of the insulation part, and the supporting positioning nail is inserted into the quick-drying epoxy resin to be poured into a whole structure quickly. The utility model solves the problem of difficult installation caused by extremely narrow fastening operation space of the built-in CT, and has the advantages of high safety, strong operability, convenient installation and the like.

Description

Fixed supporting structure of built-in CT of reactor

Technical Field

The utility model belongs to the technical field of transformer production and manufacturing, and particularly relates to a fixed support structure for a built-in CT of a reactor.

Background

With the development of power systems, the requirement for the operation stability of power equipment is increasing, the built-in CT is an important current measurement and relay protection component used in power equipment such as a reactor, and the built-in CT is located inside a transformer oil tank, so how to make the built-in CT more convenient to install and more reliable to operate has become an important research subject.

The traditional built-in CT of the oil immersed reactor is generally fixed and supported only by a support plate welded at a clamping piece, the weight of each built-in CT is about 80-100kg, and the heavier built-in CT has the safety risk of fixing and supporting; sometimes, the fixed plate support is reinforced at the bottom of the oil tank below the built-in CT, although the support strength is enhanced, when the transformer body falls into the tank, the fastening operation space of the built-in CT is extremely narrow, an operator even cannot enter the oil tank for fastening, and meanwhile, the requirement on the welding precision of the support plate welded at the bottom of the tank is high, otherwise, the support plate cannot be accurately matched and fastened. Therefore, it is an important subject to improve the safety and stability of electric power equipment such as a reactor and the like to find a fixed support structure with a built-in CT which is reliable in fastening and support, low in processing difficulty, and simple in operation during installation.

Disclosure of Invention

In order to solve the above technical problems, an object of the present invention is to provide a fixing and supporting design for a built-in CT, which can solve the above problems, in view of the fixing reliability and mounting workability of the built-in CT currently used in electric power equipment such as a reactor and a transformer. The technical scheme adopted by the utility model is as follows:

a fixed bearing structure of built-in CT of reactor, fixed bearing structure be pouring type fixed bearing structure, include: the support frame is of a T-shaped structure and comprises a supporting and positioning flat plate and supporting and positioning nails which are integrally formed, the supporting and positioning flat plate and the supporting and positioning nails are vertically intersected, bolt holes are formed in the adapter plate, corresponding bolt holes are formed in the supporting and positioning flat plate, and the adapter plate and the supporting and positioning flat plate are fixedly connected through bolts; the pouring base comprises: the positioning pipe is a hollow steel pipe with a square cross section, the lower end of the positioning pipe is fixedly connected with the upper surface of the bottom of an oil tank in a welding mode, the positioning pipe is internally provided with a U-shaped first insulating part, the quick-drying epoxy resin is poured into a cavity of the first insulating part, and the positioning nail is supported and inserted into the quick-drying epoxy resin to be quickly poured into an integrated fixed supporting structure.

The utility model has the beneficial effects that:

according to the utility model, through the pouring type supporting structure, the problem of difficult installation caused by extremely narrow fastening operation space of the built-in CT is solved, the quick-drying epoxy resin is injected into the positioning tube before the transformer body is dropped into the box, the supporting positioning nail is dropped into the positioning tube after the box is dropped, and the supporting positioning nail can effectively support the built-in CT on the support after the quick-drying epoxy resin is solidified. The structure completes the assembly and fastening of the built-in CT before the device body falls into the box, saves personnel from entering the oil tank to fasten the built-in CT after the device body falls into the box, has the advantages of high safety, strong operability, convenience in installation and the like, can effectively improve the operation reliability of the reactor, greatly simplify the production and installation process of the reactor, and effectively improve the production safety and the economical efficiency of the reactor.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are specific embodiments of the utility model, and that other drawings within the scope of the present application can be obtained by those skilled in the art without inventive effort.

FIG. 1 is a front view of a fixed support structure of an embodiment of the utility model;

FIG. 2 is a top view of a fixed support structure of an embodiment of the present invention;

FIG. 3 is a schematic view of a mounting plate of an embodiment of the present invention after being welded to a first fastening flange;

FIG. 4 is a schematic view of a weld of a fixed support plate and a second fastening flange of an embodiment of the utility model;

FIG. 5 is a schematic view of an adapter plate and a mounting plate of an embodiment of the present invention after welding;

FIG. 6 is a schematic view of a mounting support plate of an embodiment of the present invention after welding with a second fastening flange and an adapter plate;

FIG. 7 is a schematic view of an adapter plate assembled with a support frame and a casting base according to an embodiment of the present invention;

in the figure, 1-a fixing plate, 2-a fixing support plate, 3-a first fastening flange, 4-a second fastening flange, 5-a built-in CT, 6-an iron core clamp, 7-a fastening screw, 8-a fastening bolt, 9-an oil tank bottom, 10-a positioning pipe, 11-a first insulating part, 12-quick-drying epoxy resin, 13-an adapter plate, 14-a reinforcing rib, 15-a supporting and positioning flat plate, 16-a supporting and positioning nail and 17-a second insulating part.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

FIG. 1 is a front view of a fixed support structure according to an embodiment of the present invention; fig. 2 is a top view of a fixed support structure according to an embodiment of the present invention. A fixed support structure of a reactor built-in CT comprises: a pair of fixed plates 1 arranged in parallel and a pair of fixed support plates 2 arranged in parallel. The fixed plate 1 is angle steel, and the angle steel structure has good supporting strength and lighter weight. One end of the fixing plate 1 is fixedly connected with the iron core clamping piece 6 in a welding mode, the other end of the fixing plate 1 is fixedly connected with one side of the first fastening flange 3 in a welding mode, the fixing support plate 2 is an angle steel, one end of the fixing support plate 2 is fixedly connected with one side of the second fastening flange 4 in a welding mode, and the first fastening flange 3 and the second fastening flange 4 are fixedly connected through the fastening bolt 8. Adopt fixed plate 1 through the detachable construction that first fastening flange 3 and second fastening flange 4 are connected with fixed support plate 2, rather than adopting the angle steel of whole strip, can make fixed bearing structure obtain suitable length through the length of adjustment fixed plate 2, detachable construction can make fixed bearing structure reach the assembly and the transportation condition of process earlier stage simultaneously.

Fig. 3 is a schematic view of a fixing plate and a first fastening flange after being welded according to an embodiment of the present invention; fig. 4 is a schematic view of a welding position of the fixing support plate and the second fastening flange according to the embodiment of the present invention. One end of the fixed supporting plate 2 is welded on the side surface of the second fastening flange 4, and the welding structure of the fixed plate 1 and the first fastening flange 3 is the same. First fastening flange 3 and second fastening flange 4 all adopt the cross section to be square flange, and the four corners of flange sets up the bolt hole respectively, and fastening bolt 8 passes bolt hole and with first fastening flange 3 and second fastening flange 4 fixed connection.

A pouring type supporting structure is arranged at one end, far away from the second fastening flange 4, of the fixed supporting plate 2, and a vertical supporting frame of the fixed plate 1 and the fixed supporting plate 2 is formed by the pouring type supporting structure and the iron core clamping pieces 6, so that vertical reliable support is provided for the built-in CT 5. Holes are formed in proper positions on the horizontal plate of the fixed support plate 2, correspondingly, upper and lower through holes are formed in the second insulating parts 17 on two sides of the built-in CT5, the fastening screw 7 penetrates through the holes in the horizontal plate of the fixed support plate 2 and the upper and lower through holes in the second insulating parts 17, and the built-in CT5 is installed on the fixed support plate 2, so that the built-in CT5 is integrally fixed, and the built-in CT5 is installed more stably and runs more safely.

The poured support structure comprises: adapter plate 13, support frame and pouring type base, adapter plate 13 and fixed bolster 2 perpendicular lateral surface welded fastening, adapter plate 13 intersects perpendicularly with fixed bolster 2 perpendicular lateral surface, sets up strengthening rib 14 between adapter plate 13 upper surface and fixed bolster 2 perpendicular lateral surface, and strengthening rib 14 can promote adapter plate 13's support intensity. Fig. 5 is a schematic view illustrating a patch panel and a fixed support plate according to an embodiment of the present invention after being welded together; fig. 6 is a schematic view of a fixed support plate, a second fastening flange and an adapter plate after welding according to an embodiment of the present invention.

Fig. 7 is a schematic view showing the assembly of the adapter plate with the support frame and the pouring base according to the embodiment of the present invention. The support frame be T style of calligraphy structure, the support frame includes integrated into one piece's support location flat board 15 and support location nail 16, support location flat board 15 and support location nail 16 and intersect perpendicularly. The adapter plate 13 is provided with bolt holes, correspondingly, the support positioning flat plate 15 is provided with corresponding bolt holes, and the adapter plate 13 and the support positioning flat plate 15 are tightly connected through bolts. The pouring base comprises: the positioning pipe 10, the first insulating part 11 and the quick-drying epoxy resin 12, the positioning pipe 10 is the hollow steel pipe of square cross section, the lower extreme of positioning pipe 10 and the upper surface welding fixed connection of oil tank bottom of the case 9, set up the first insulating part 11 of U type structure in the positioning pipe 10, pour the quick-drying epoxy resin 12 in the cavity of first insulating part 11, support during the locating pin 16 inserts the quick-drying epoxy resin 12, pour into integrative fixed stay structure fast. When the built-in CT5 is installed, an insulating sleeve is additionally installed when the bolt on one side is connected, and multipoint grounding is avoided. When the adapter plate 13 and the supporting and positioning flat plate 15 are tightly connected through the bolts, the insulating sleeve is added on the bolt on one side, and multipoint grounding is avoided.

Finally, it is to be noted that: the above examples are only specific embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, and the scope of the present invention is not limited thereto. Those skilled in the art will understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein.

Claims

1. Fixed bearing structure of built-in CT of reactor, its characterized in that, fixed bearing structure be the fixed bearing structure of pouring type, include: the support frame is of a T-shaped structure and comprises a support positioning flat plate (15) and support positioning nails (16) which are integrally formed, the support positioning flat plate (15) and the support positioning nails (16) are vertically intersected, bolt holes are formed in the adapter plate (13), corresponding bolt holes are formed in the support positioning flat plate (15), and the adapter plate (13) and the support positioning flat plate (15) are fixedly connected through bolts; the pouring base comprises: positioning tube (10), first insulating part (11) and fast dry epoxy (12), positioning tube (10) are the hollow steel pipe of square for the cross section, and the lower extreme of positioning tube (10) and the upper surface welding fixed connection of oil tank bottom of the case (9), set up first insulating part (11) of U type structure in positioning tube (10), pour fast dry epoxy (12) in the cavity of first insulating part (11), support during location nail (16) inserts fast dry epoxy (12).

2. The fixed support structure of the reactor built-in CT according to claim 1, characterized in that the fixed support plate (2) is an angle steel, the adapter plate (13) is welded and fixed with the vertical outer side surface of the fixed support plate (2), and the adapter plate (13) is vertically crossed with the vertical outer side surface of the fixed support plate (2).

3. The fixed support structure of a reactor built-in CT according to claim 2, characterized in that a rib (14) is provided between the upper surface of the adapter plate (13) and the vertical outer side surface of the fixed support plate (2).

4. The fixed support structure of the reactor built-in CT according to claim 2, characterized in that one end of the fixed plate (1) is fixedly connected with the core clamp (6) by welding, the other end of the fixed plate (1) is fixedly connected with one side of the first fastening flange (3) by welding, one end of the fixed support plate (2) is fixedly connected with one side of the second fastening flange (4) by welding, and the first fastening flange (3) and the second fastening flange (4) are fixedly connected by fastening bolts (8).

5. The fixed support structure of the reactor built-in CT according to claim 4, characterized in that the fixed plate (1) is an angle steel.

6. The fixed support structure of reactor built-in CT according to claim 5, characterized in that the first fastening flange (3) and the second fastening flange (4) are both square flanges with a square cross section, and bolt holes are respectively arranged at four corners of the flanges.

7. The fixed support structure of the reactor built-in CT according to claim 6, wherein a horizontal plate of the fixed support plate (2) is provided with an opening, the second insulator (17) on both sides of the built-in CT (5) is provided with an upper and a lower through holes, the fastening screw (7) is inserted through the opening of the horizontal plate of the fixed support plate (2) and the upper and the lower through holes of the second insulator (17), and the built-in CT (5) is mounted on the fixed support plate (2).

8. The fixed support structure of the reactor built-in CT according to claim 7, characterized in that when the adapter plate (13) and the support positioning plate (15) are fastened by bolts, an insulating sleeve is added on the bolt on one side.