CN214203433U - Transformer valve sleeve insulating support and installation guide structure assembly - Google Patents
Transformer valve sleeve insulating support and installation guide structure assembly Download PDFInfo
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- CN214203433U CN214203433U CN202022604438.4U CN202022604438U CN214203433U CN 214203433 U CN214203433 U CN 214203433U CN 202022604438 U CN202022604438 U CN 202022604438U CN 214203433 U CN214203433 U CN 214203433U
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Abstract
The utility model relates to a transformer valve barrel insulating support and installation guide structure subassembly, include: a mounting guide structure for mounting the valve sleeve to the valve lifting seat, and an insulating support structure for supporting the valve sleeve. The installation guide structure includes: two detachable guide rods fixedly arranged on the valve lifting seat and a guide cushion block movably arranged on the guide rods. Insulating bearing structure is frame-type insulating bearing structure who gives first place to with I-steel, includes: a support structure and a fiberglass insulation structure. The utility model discloses an installation guide structure's frock design causes valve barrel pipe tail slope because of operations such as lifting by crane the error when avoiding installing, can carry out the structure to current transformer valve barrel pipe installation and consolidate, improves the valve and risees the rigidity of being connected of seat and oil tank, and the structure principle is simple, and the practicality is good, guarantees the long-term safe operation of this structure, reaches the purpose of popularization and application on 800kV converter transformer.
Description
Technical Field
The utility model belongs to the large-scale converter transformer of high voltage class makes the field, especially relates to a need strengthen the structure subassembly that insulating support and installation direction to transformer valve sleeve pipe.
Background
The +/-800 kV converter transformer has high valve side voltage level, the valve sleeves are generally arranged on the side wall of the short shaft of the oil tank, the valve sleeves are fixedly arranged on the valve lifting seat to ensure the insulation distance of the electrified part of the valve sleeve to other parts, and the two valve sleeves are approximately arranged in a V shape relative to the central plane of the long shaft.
The valve sleeve mounting structure has poor stability and is not easy to form a reliable supporting structure; and the valve sleeve pipe is inconvenient to guide directionally when being installed on site, and the tail part of the valve sleeve pipe is inclined if the valve sleeve pipe is not operated properly, so that a wire outlet device and a CT (current transformer on the transformer valve sleeve pipe) in the valve lifting seat are damaged.
Disclosure of Invention
In order to solve the technical problem, guarantee the reliable installation of valve barrel and long-term operation stability, the utility model provides a transformer valve barrel insulation support and installation guide structure subassembly. The utility model discloses the technical scheme who adopts as follows:
a transformer valve sleeve insulating support and installation guide structure assembly, comprising: a mounting guide structure for mounting the valve sleeve to the valve lifting seat, and an insulating support structure for supporting the valve sleeve.
The installation guide structure comprises: two detachable guide rods fixedly arranged on the valve lifting seat, and guide cushion blocks movably arranged on the guide rods; the guide rod is symmetrical to the axis of the valve lifting seat and is parallel to the axis direction of the valve lifting seat; the guide cushion block is a cuboid structure with the upper surface and the lower surface being in an arc shape, and is positioned below the valve sleeve; the installation guide structure can play a good directional guide role in the installation of the valve sleeve, and the tail of the valve sleeve is prevented from inclining in the installation process.
Insulating bearing structure be frame-type insulating bearing structure who gives first place to with I-steel, include: a support structure and an insulating structure; the supporting structure comprises a cross beam for supporting, a first supporting upright post and a second supporting upright post which are positioned on the cross beam, and two full-screw rods are arranged at the upper end parts of the first supporting upright post and the second supporting upright post; the insulating structure is a glass fiber insulating structure, and the insulating structure is arranged among the first supporting upright post, the second supporting upright post and the cross beam. Through the insulating support structure, the valve sleeve can be guaranteed to have stable support and reliable insulation all the time in the operation process of the transformer.
The utility model has the advantages that:
the utility model discloses a tool design of an installation guide structure, which aims to realize the function of directional guide when installing valve sleeves in factories and on site and avoid the tail part of the valve sleeve from inclining caused by operations such as lifting error during installation, thereby damaging a wire outlet device and a CT in a lifting seat; the design of the reinforced insulation supporting structure of the valve lifting seat can ensure that the mechanical stress of the box wall caused by the cantilever load of a valve sleeve can be effectively reduced when the converter transformer operates for a long time, and can effectively reduce the oil leakage risk of bolts at the top of the valve lifting seat at the box wall caused by stress concentration; in addition, the design of adding insulation to the supporting structure in a high electric field area can avoid the problem of overheating caused by forming a ground loop among the supporting structure, the valve lifting seat and the oil tank.
The utility model discloses can carry out the structure to current transformer valve barrel installation and consolidate, improve the valve and rise the connection rigidity of seat and oil tank, the structure principle is simple, and the practicality is good, can guarantee the long-term safe operation of this structure, reaches the purpose of popularization and application on 800kV converter transformer.
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 illustrative of some embodiments of the invention, and that those skilled in the art will be able to derive other drawings without inventive step from these drawings, which are within the scope of the present application.
Fig. 1 is a schematic view of a mounting guide structure according to an embodiment of the present invention;
fig. 2 is a schematic view of a use state of the installation guide structure according to the embodiment of the present invention;
fig. 3 is a sectional view of the installation guide structure according to the embodiment of the present invention;
fig. 4 is a schematic structural diagram of a guide pad block according to an embodiment of the present invention;
fig. 5 is a schematic view of a support structure of an insulating support structure according to an embodiment of the present invention;
fig. 6 is an insulation structure diagram of an insulation support structure according to an embodiment of the present invention;
in the figure, 1-guide rod, 2-guide cushion block, 3-rectangular window, 4-binding notch, 5-rectangular wood board, 6-arc wood board, 7-valve lifting seat, 8-valve sleeve, 9-guide rod fixing base, 10-first cantilever beam, 11-second cantilever beam, 12-first supporting upright post, 13-second supporting upright post, 14-cross beam, 15-cross structure, 16-full screw rod, 17-steel washer, 18-glass fiber washer, 19-glass fiber tube, 20-glass fiber plate, 21-national standard tooth-shaped washer, 22-spring washer, 23-bolt and 24-nut.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.
A transformer valve sleeve insulating support and installation guide structure assembly, comprising: valve barrel pipe insulation support structure to and valve barrel pipe installation guide structure.
As shown in fig. 1, it is a schematic view of an installation guide structure according to an embodiment of the present invention; as shown in fig. 2, it is a schematic view of a use state of the installation guide structure according to the embodiment of the present invention; as shown in fig. 3, a sectional view of the installation guide structure according to the embodiment of the present invention is shown in the direction a. Valve sleeve 8 fixed mounting rises on seat 7 at the valve, set up two and valve on the section of thick bamboo wall circumferencial direction that rises seat 7 and rise the axis symmetry of seat 7 with the valve to with the valve can dismantle guide arm 1 that the axis direction of seat 7 is parallel, the activity sets up the direction cushion 2 (being located valve sleeve 8's downside) of a laminated wood material on guide arm 1, it is parallel with guide arm 1 to realize valve sleeve 8, guide arm 1 and direction cushion 2 play stable support and guide effect when installing valve sleeve 8, and then guarantee valve sleeve 8's installation angle.
A guide rod fixing base 9 is welded on the cylinder wall of the valve lifting seat 7, the shape of the guide rod fixing base 9 can be designed in a diversified mode according to the structure of the actual valve lifting seat 7, and the guide rod 1 is connected with the guide rod fixing base 9 through bolts. Every guide arm 1 is provided with two guide arm unable adjustment bases 9, and two guide arm unable adjustment bases 9's interval rational arrangement: the lengths of the valve sleeve 8 and the valve lifting seat 7 can be comprehensively considered, the length of the guide rod 1 is determined, and the distance between the two guide rod fixing bases 9 is calculated according to the cantilever load of the valve sleeve 8. After the valve sleeve 8 is installed, the tool guide rod 1 is removed from the valve lift seat 7.
As shown in fig. 4, is a schematic structural diagram of a guide pad according to an embodiment of the present invention. The guide cushion block 2 is of a cuboid structure with arc-shaped upper and lower surfaces, the arc-shaped upper surface is matched with the valve lifting seat 7, and the arc-shaped lower surface is matched with the two guide rods 1. Specifically, the guide pad 2 includes: two parallel rectangular wood boards 5 are fixedly arranged at two ends of each rectangular wood board 5 through bolts, and two parallel arc-shaped wood boards 6 are fixedly arranged at two ends of each rectangular wood board 5. Four rectangular windows 3 are respectively arranged at four corners of the rectangular wood board 5, and the rectangular windows 3 are convenient to operate when bolts are installed; a notch 4 is arranged at the arc-shaped central position of the upper surface of the arc-shaped wood board 6; when the valve sleeve pipe 7 is installed, the guide cushion block 2 is directly placed on the guide rod 1, and a process binding rope is used for traction through the notch 4 on the arc-shaped wood board 6. Use the utility model discloses a valve barrel installs guide structure, performance directional guide function when installing valve sleeve pipe 8 in the factory and scene, because of lifting by crane operation such as error causes valve sleeve pipe 8's afterbody slope when avoiding installing to damage outlet device and CT in the valve rising seat 7. The utility model discloses a laminated wood direction supports backing plate 2 and can dismantle the frock design of guide arm 1 under the prerequisite of guaranteeing the direction function, additionally provides the support when valve sleeve 8 installs, can effectively prevent that the slope of 8 tail ends of valve sleeve pipe in admission valve rising seat 7 from destroying.
As shown in fig. 5, it is a schematic view of the supporting structure of the insulating supporting structure according to the embodiment of the present invention. In order to ensure the supporting strength of the valve sleeve 8, a frame type supporting structure mainly made of I-shaped steel is designed, and the supporting structure with the height adjustable in the vertical direction of the valve sleeve 8 is realized. The frame type supporting structure is in a symmetrical type as a whole and comprises: the cantilever structure comprises a first cantilever beam 10 and a second cantilever beam 11 which are arranged in parallel in opposite directions and have triangular structures, and two transverse bottom edges of the first cantilever beam 10 and the second cantilever beam 11 are connected and fixed into a whole through a cross structure 15. Finally, a cross beam 14 is arranged at the end parts of the two transverse bottom edges of the first cantilever beam 10 and the second cantilever beam 11 far away from the inclined cantilever beam to be used as a base for supporting and positioning the valve lifting seat 7. Two positioning holes are formed in the beam 14 of the frame type supporting structure and are used for fixedly connecting the first supporting upright 12 and the second supporting upright 13, and therefore vertical high-strength support for the valve sleeve 8 is integrally achieved. Two M42 full lead screws 16 with the strength grade not less than 8.8 are arranged at the upper end parts of the first support upright post 12 and the second support upright post 13, so that the height adjustment of the valve sleeve 8 is realized. Through the frame type supporting structure, the valve sleeve 8 can be stably and reliably supported, and the long-term safe operation of the converter transformer is ensured.
As shown in fig. 6, it is a schematic view of an insulation structure of an insulation support structure according to an embodiment of the present invention. Between the first support column 12, the second support column 13 and the cross beam 14, a fiberglass insulation structure is provided. The fiberglass insulation structure comprises: a 3mm thick high strength fiberglass panel 20, the fiberglass panel 20 being located between the first support column 12, the second support column 13 and the cross beam 14; sleeving a glass fiber tube 19 on the outer side of the bolt 23, supporting the bottom of the glass fiber tube 19 on the upper surface of a glass fiber plate 20, and penetrating the positioning hole and the glass fiber plate 20 by using the bolt 23 to realize the connection of the first support upright 12, the second support upright 13 and the cross beam 14; the nut of the bolt 23 is positioned at one side of the support upright, a steel washer 17 and a glass fiber washer 18 are arranged between the nut of the bolt 23 and the first support upright 12 and the second support upright 13, and a national standard tooth-shaped washer 21 and a spring washer 22 are arranged between the nut 24 and the cross beam 14. The glass fiber tube 19 and the glass fiber plate 20 can ensure that the insulation among the first support column 12, the second support column 13 and the cross beam 14 is still reliable under the working condition that the transformer is vibrated for a long time; the nut 24 is connected with the cross beam 14 through the national standard tooth-shaped washer 21 and the spring washer 22, and reliable grounding can be achieved.
The utility model discloses a can dismantle when strengthening insulating bearing structure and install, can be according to the space characteristics of transformer tank structure, at the board-like strengthening rib of oil tank minor axis wall and major axis wall junction welding four places to weld dull and stereotypedly on board-like strengthening rib, the unable adjustment base of whole valve barrel insulation bearing structure is regarded as to the flat board, unable adjustment base's shape can be according to the diversified design of actual product. And the frame type insulating support structure is fixedly arranged on the fixed base, so that the reliable insulating support with the height adjustable in the vertical direction of the valve sleeve 8 is realized.
The detachable reinforced insulation supporting structure of the utility model is integrally designed into a frame structure, which can effectively reduce the dead weight; height adjustment and vertical support are realized between the supporting column and the valve sleeve through two high-strength full-lead screws, supporting strength of the valve sleeve is guaranteed, and installation is facilitated. The design of adding an insulating structure between the supporting upright post and the cross beam in a high electric field area can avoid the problem that a metal structural part is overheated due to the fact that a ground loop is formed among the reinforcing supporting structure, the valve lifting seat and the oil tank.
In order to exert better the utility model discloses a transformer valve barrel insulation support structure and installation guide structure's effect, the utility model discloses the valve further improved the valve rise seat 7 and the structure of valve sleeve 8. Six to eight reinforcing ribs are uniformly arranged in the circumferential direction of the cylinder wall of the valve sleeve 8 (the reinforcing ribs are used for improving the strength and the rigidity of the cylinder wall), and the thickness of a flange at the joint of the valve lifting seat 7 is increased to 33mm (the purpose of increasing the thickness is to reduce the stress of the flange). The flange bolt design that valve rising seat 7 and fuel tank wall are connected is the great high strength bolt M20 of diameter and reduces the interval (increase bolt quantity promptly), realizes guaranteeing transportation size's detachable connection (flange joint structure can realize that valve rising seat 7 dismantles the transportation alone to the transportation size of fuel tank body has been guaranteed), and the fuel tank wall thickness increases to 50 mm. Since the valve sleeve 8 is mounted on the valve lift seat 7, in order to improve the support rigidity of the valve sleeve 8, the above structure is improved, and the mounting rigidity of the valve lift seat 7 and the valve sleeve 8 as a whole is improved. The utility model discloses improved the structure that valve sleeve 8 and valve rose seat 7, through rationally selecting strengthening rib structural style, bolt specification and interval, ring flange thickness, valve barrel side tank wall thickness, guaranteed valve sleeve 8 and valve and rose seat 7 and the oil tank wall within a definite time rigidity of being connected.
Finally, it is to be noted that: the above embodiments 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 substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (9)
1. Transformer valve sleeve insulating support and installation guide structure subassembly, its characterized in that includes: a mounting guide structure for mounting the valve sleeve (8) to the valve lifting seat (7), and an insulating support structure for supporting the valve sleeve (8);
the installation guide structure comprises: two detachable guide rods (1) fixedly arranged on the valve lifting seat (7), and guide cushion blocks (2) movably arranged on the guide rods (1); the guide rod (1) is symmetrical to the axis of the valve lifting seat (7) and is parallel to the axis direction of the valve lifting seat (7); the guide cushion block (2) is of a cuboid structure with arc-shaped upper and lower surfaces, and the guide cushion block (2) is positioned below the valve sleeve (8);
insulating bearing structure be frame-type insulating bearing structure who gives first place to with I-steel, include: a support structure and an insulating structure; the supporting structure comprises a cross beam (14) for supporting, a first supporting upright post (12) and a second supporting upright post (13) which are positioned on the cross beam (14), and two full-screw rods (16) are arranged at the upper end parts of the first supporting upright post (12) and the second supporting upright post (13); the insulating structure is a glass fiber insulating structure, and is arranged among the first supporting upright column (12), the second supporting upright column (13) and the cross beam (14).
2. The transformer valve bushing insulation support and mounting guide structure assembly of claim 1, wherein the arc shape of the upper surface of the guide cushion block (2) is matched with the valve lifting seat (7), and the arc shape of the lower surface is matched with the two guide rods (1), and the transformer valve bushing insulation support and mounting guide structure assembly comprises: two parallel rectangular wood boards (5), wherein two parallel arc-shaped wood boards (6) are fixedly arranged at two ends of each rectangular wood board (5) through bolts; four rectangular windows (3) are respectively arranged at the four corners of the rectangular wood board (5), and notches (4) are arranged at the arc-shaped central positions of the upper surface of the arc-shaped wood board (6).
3. The transformer valve bushing insulation support and installation guide structure assembly of claim 2, wherein a guide rod fixing base (9) is welded on the cylinder wall of the valve lifting seat (7), and the guide rod (1) is connected with the guide rod fixing base (9) through a bolt; each guide rod (1) is provided with two guide rod fixing bases (9).
4. The transformer valve bushing insulation support and installation guide structure assembly of claim 1, wherein said support structure is of a symmetrical type comprising: the cantilever beam comprises a first cantilever beam (10) and a second cantilever beam (11) which are arranged in parallel in opposite directions and have triangular structures, and two transverse bottom edges of the first cantilever beam (10) and the second cantilever beam (11) are connected and fixed into a whole through a cross structure (15);
the end parts of the two transverse bottom edges of the first cantilever beam (10) and the second cantilever beam (11) far away from the inclined cantilever beam are provided with a cross beam (14), and the cross beam (14) is provided with two positioning holes for fixedly connecting the first supporting upright column (12) and the second supporting upright column (13).
5. The transformer valve bushing insulation support and mounting guide structure assembly of claim 1, wherein said full lead screw (16) is M42 with a strength rating of no less than 8.8.
6. The transformer valve bushing insulation support and installation guide structure assembly of claim 1, wherein said insulation structure comprises: and the glass fiber plate (20) is positioned between the first supporting upright post (12), the second supporting upright post (13) and the cross beam (14), a glass fiber pipe (19) is sleeved on the outer side of the bolt (23), and the bottom of the glass fiber pipe (19) is supported on the upper surface of the glass fiber plate (20).
7. The transformer valve bushing insulation support and mounting guide structure assembly of claim 6, characterized in that nuts of the bolts (23) are positioned at one side of the first support column (12) and the second support column (13), steel washers (17) and glass fiber washers (18) are arranged between the nuts of the bolts (23) and the first support column (12) and the second support column (13), and national standard tooth-shaped washers (21) and spring washers (22) are arranged between the nuts (24) and the cross beam (14).
8. The transformer valve sleeve insulating support and mounting guide structure assembly of claim 7, wherein said fiberglass plate (20) is 3mm thick.
9. The transformer valve bushing insulation support and installation guide structure assembly according to any one of claims 1-8, characterized in that six to eight reinforcing ribs are uniformly arranged in the circumferential direction of the cylinder wall of the valve bushing (8), the thickness of the flange at the joint with the valve lifting seat (7) is increased to 33mm, the flange bolt at the joint with the fuel tank wall of the valve lifting seat (7) is designed as a high-strength bolt M20 and is reduced in interval, and the thickness of the fuel tank wall is increased to 50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022604438.4U CN214203433U (en) | 2020-11-11 | 2020-11-11 | Transformer valve sleeve insulating support and installation guide structure assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022604438.4U CN214203433U (en) | 2020-11-11 | 2020-11-11 | Transformer valve sleeve insulating support and installation guide structure assembly |
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| CN214203433U true CN214203433U (en) | 2021-09-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112614675A (en) * | 2020-11-11 | 2021-04-06 | 山东电力设备有限公司 | Transformer valve sleeve insulating support and installation guide structure assembly and assembly method |
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2020
- 2020-11-11 CN CN202022604438.4U patent/CN214203433U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112614675A (en) * | 2020-11-11 | 2021-04-06 | 山东电力设备有限公司 | Transformer valve sleeve insulating support and installation guide structure assembly and assembly method |
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