CN113899636A

CN113899636A - Gas peak regulation power station GIS sleeve pipe fatigue test device

Info

Publication number: CN113899636A
Application number: CN202110967292.6A
Authority: CN
Inventors: 王在华; 应光耀; 金涌涛; 李晨
Original assignee: Electric Power Research Institute of State Grid Zhejiang Electric Power Co Ltd
Current assignee: Electric Power Research Institute of State Grid Zhejiang Electric Power Co Ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-01-07

Abstract

The invention discloses a gas peak regulation power station GIS sleeve fatigue testing device, belongs to the technical field of electrical equipment, and aims to test a GIS sleeve to improve the application reliability of the GIS sleeve. The testing device comprises a machine body, wherein a fixed seat and a rotating seat are arranged on the machine body, one end of the sleeve is fixed on the fixed seat, the other end of the sleeve is fixed on the rotating seat, a driving part capable of rotating relative to the machine body is further arranged on the machine body, and the driving part is in transmission connection with the rotating seat to drive the rotating seat to rotate. Can carry out the torque test of different degrees to the sleeve pipe, testing arrangement is simple, as long as rotate the drive division and just can carry out the torque test to the sleeve pipe, and sheathed tube installation also is comparatively convenient with the dismantlement.

Description

Gas peak regulation power station GIS sleeve pipe fatigue test device

Technical Field

The invention belongs to the technical field of electrical equipment, and relates to a fatigue testing device for a gas peak regulation power station GIS sleeve.

Background

The fuel gas peak regulation power station mainly refers to a power plant which burns natural gas to bear the power load of a power system during the peak period. GIS in the peak shaving power station is the English name of a gas insulated substation for short. In gas-insulated substations, most of the electrical equipment is directly or indirectly sealed in a pipe tree consisting of metal pipes and bushings, and no switches, lines or terminals are visible from the outside.

Once a GIS of the peak shaving power station breaks down, the GIS directly influences the stable operation of electrical equipment, and has great influence on the peak shaving of a power grid. The sleeve is an important part of the GIS and is an outer insulating material of outgoing lines of a main transformer and a voltage and current transformer. Bears the high-voltage insulation load charge load and the mechanical load. Mechanical load such as internal pressure, bending moment, torque, tensile compression and the like, the GIS sleeve is subjected to external force in the early stage of operation, so that mechanical damage gradually occurs, the mechanical damage gradually develops and expands, and finally electrical fault can be caused.

No tool for testing and analyzing the torque fatigue characteristics of the GIS sleeve exists in the prior art.

Disclosure of Invention

The invention provides a gas peak regulation power station GIS sleeve fatigue testing device aiming at the problems in the prior art and aims to test a GIS sleeve so as to improve the application reliability of the GIS sleeve.

The invention is realized by the following steps:

the utility model provides a gas peak regulation power station GIS sleeve pipe fatigue test device, its characterized in that, includes the organism, be equipped with the fixing base on the organism and rotate the seat, affiliated sheathed tube one end is fixed on the fixing base, and the other end is fixed on rotating the seat, still be equipped with relative organism pivoted drive division on the organism, the drive division with it connects in order to drive to rotate the seat rotation.

The fixing seat comprises a fixing part fixed on the machine body and a sliding part slidably mounted on the machine body, a clamping groove for accommodating the sleeve is formed in the fixing part and/or the sliding part, and the fixing part and the sliding part are locked and fixed through screws.

The machine body is fixedly provided with a support ring, the support ring is provided with a rotary rod stretching across the support ring, the end part of the rotary rod is connected with the support ring in a sliding manner, and the rotating seat is fixed in the middle of the rotary rod.

The support ring with be equipped with the slider between the rotary rod, have the arc spout on the slider, the edge embedding of support ring in the arc spout.

The driving part with be equipped with first gear and second gear between the seat rotates, first gear with the driving part is connected, the second gear with rotate seat fixed connection, first gear with the second gear meshes mutually.

The driving part is a rotating hand wheel, the rotating hand wheel is coaxially connected with the first gear, and the second gear is coaxial with the sleeve.

The gear ratio of the first gear to the second gear is 1: 3.

the machine body comprises a supporting plate and a supporting rod fixed on the supporting plate, and the supporting ring is fixed on the supporting rod.

The utility model discloses a support ring, including support ring, bracing piece, supporting ring, slot, the bracing piece is two at least, the tip of bracing piece is fixed the inboard of support ring, the bracing piece with the fixed length of support ring is shorter than the width of support ring, it has the slot to rotate on the seat, the sleeve pipe inserts the slot and passes through the fix with screw.

The machine body further comprises a support frame fixed on the support plate, an L-shaped support piece is arranged on the support frame, and the first gear is installed between the two support pieces.

The fatigue testing device for the gas peak-shaving power station GIS sleeve can perform torque tests on the sleeve at different degrees, is simple, can perform the torque tests on the sleeve only by rotating the driving part, and is convenient to mount and dismount.

Drawings

FIG. 1 is a schematic view of a first angular configuration of a testing apparatus;

fig. 2 is a second angle structure diagram of the testing device.

Reference is made to the accompanying drawings in which: 100. a body; 110. a slide rail; 120. a support ring; 130. a support plate; 140. a support bar; 150. a support frame; 160. a support member; 200. a fixed seat; 210. a fixed part; 220. a sliding part; 300. a rotating seat; 310. rotating the rod; 320. a slider; 400. a sleeve; 500. a drive section; 510. a first gear; 520. a second gear.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in connection with the accompanying drawings for the purpose of facilitating understanding and understanding of the technical solutions of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The embodiment provides a gas peak regulation power station GIS sleeve 400 fatigue test device, as shown in fig. 1-2, including organism 100, be equipped with fixing base 200 and rotation seat 300 on the organism 100, the one end of affiliated sleeve 400 is fixed on fixing base 200, and the other end is fixed on rotating seat 300, still be equipped with on the organism 100 and can be relative organism 100 pivoted drive division 500, drive division 500 with rotate seat 300 transmission and connect in order to drive rotate seat 300 and rotate.

During the test, fix the first end of sleeve pipe 400 on fixing base 200, the second end is fixed on rotating seat 300, drive through rotating drive division 500 and rotate seat 300 and rotate, rotate seat 300 and drive the second end rotation of sleeve pipe 400, because the first end of sleeve pipe 400 is fixed on fixing base 200, can not take place to rotate, therefore the second end rotation of sleeve pipe 400 can not lead to first end to rotate, but can impel sleeve pipe 400 distortion. Paste the resistance foil gage on sleeve pipe 400, measure the resistance change that the stress variation of sleeve pipe 400 converts resistance foil gage into through the resistance foil gage, and then carry out the torque analysis, then can further analyze sleeve pipe 400 material fatigue characteristic through scanning electron microscope and spectrum appearance, obtain the corresponding relation of sleeve pipe 400 moment of torsion and fatigue characteristic, judge whether sleeve pipe 400 is applicable to on the gas peak regulation power station according to this corresponding relation, avoid using unsuitable sleeve pipe 400 to produce great potential safety hazard on the gas peak regulation power station.

As shown in fig. 1, the fixing base 200 includes a fixing portion 210 fixed on the machine body 100 and a sliding portion 220 slidably mounted on the machine body 100, the fixing portion 210 and the sliding portion 220 have a clamping groove for receiving the sleeve 400, and the fixing portion 210 and the sliding portion 220 are fastened and fixed by screws. During the installation of the sleeve 400, the second end of the sleeve 400 is fixed to the rotating seat 300, the first end of the sleeve 400 is placed in the clamping groove of the fixing portion 210, the sliding portion 220 is slid, the sliding portion 220 is gradually close to the fixing portion 210, the first end of the sleeve 400 is gradually embedded into the clamping groove of the sliding portion 220, when the first end of the sleeve 400 is completely embedded into the clamping groove of the sliding portion 220, a gap is still reserved between the sliding portion 220 and the rotating portion, so that the fixing portion 210 and the sliding portion 220 can be fully contacted with the sleeve 400, the friction force is guaranteed to be large, the sleeve 400 is prevented from rotating relative to the fixing seat 200, the sliding portion 220 and the fixing portion 210 clamp the first end of the sleeve 400 together, and then the fixing portion 210 and the sliding portion 220 are fixed through tightening screws. In other alternative embodiments, a screw penetrating through the sliding portion 220 and abutting against the sleeve 400 may be further disposed on the sliding portion 220 to further improve the fastening between the sleeve 400 and the fixing base 200, so as to prevent the sleeve 400 from rotating relative to the fixing base 200. In other alternative embodiments, the fixing base 200 may also be an integrated fixing block, and the fixing block is provided with a socket, and the sleeve 400 is inserted into the socket and locked by a screw penetrating through the fixing block.

The body 100 has a T-shaped slide rail 110, and the sliding portion 220 has a T-shaped sliding slot matching with the slide rail 110.

As shown in fig. 1-2, a support ring 120 is fixed on the machine body 100, a rotating rod 310 is disposed on the support ring 120 and spans across the support ring 120, an end of the rotating rod 310 is slidably connected to the support ring 120, and the rotating base 300 is fixed in a middle of the rotating rod 310. This facilitates the device to adapt to different diameter sleeves 400, for example, the rotary base 300 and the rotary rod 310 can be jointly detached and connected with the support ring 120, and different sizes of sleeves 400 can be adapted by replacing different types of rotary bases 300.

Specifically, as shown in fig. 1-2, a sliding block 320 is disposed between the support ring 120 and the rotating rod 310, the sliding block 320 has an arc-shaped sliding slot, and an edge of the support ring 120 is embedded in the arc-shaped sliding slot. The end of the rotating rod 310 is detachably fixed on the sliding block 320 through a screw, and the sleeve 400 with different sizes can be adapted by disassembling the matching structure of the rotating base 300 and the rotating rod 310 without replacing the sliding block 320. Further, balls may be disposed on the inner wall of the arc chute to realize rolling friction between the slider 320 and the support ring 120. In other alternative embodiments, the rotating base 300 may be rotatably connected to the support ring 120 via bearings, but this requires the support ring 120 to be smaller, the rotating base 300 is also not easily disassembled, and the device has a poor ability to fit different sized sleeves 400.

The rotating seat 300 is provided with a slot, the second end of the sleeve 400 is inserted into the slot, and then the sliding part 220 is operated to be close to the fixing part 210, so that the sleeve 400 is convenient to mount, after the sliding part 220 and the fixing part 210 are locked, the second end of the sleeve 400 is locked by a screw and then is locked on the rotating seat 300, and the second end of the sleeve 400 can rotate together with the rotating seat 300. On the contrary, when the sleeve 400 is disassembled, the corresponding screws are loosened, and then the sliding part 220 is far away from the fixing part 210, so that the first end of the sleeve 400 is separated from the clamping groove first, and then the first end of the sleeve 400 is separated from the inserting groove, thereby facilitating the disassembly of the sleeve 400.

As shown in fig. 1-2, a first gear 510 and a second gear 520 are disposed between the driving part 500 and the rotary base 300, the first gear 510 is connected to the driving part 500, the second gear 520 is fixedly connected to the rotary base 300, and the first gear 510 is engaged with the second gear 520. The gear transmission is stable, so that the test is stable, the operation driving part 500 drives the first gear 510 to rotate, the first gear 510 drives the second gear 520 to rotate, and the second gear 520 drives the rotating base 300 to rotate, so as to drive the second end of the sleeve 400. In other alternative embodiments, the rotating base 300 and the driving portion 500 may be connected by a belt transmission.

The driving part 500 is a rotating hand wheel, the rotating hand wheel is coaxially connected with the first gear 510, and the second gear 520 is coaxial with the sleeve 400. The gear ratio of the first gear 510 to the second gear 520 is 1: 3, for example, the first gear 510 has 20 teeth and the second gear 520 has 60 teeth, so that the operation of turning the hand wheel is more labor-saving. In other alternative embodiments, more gear transmissions may be used, or the gear ratios of the first gear 510 and the second gear 520 may be such that, for example, 1: 4, etc.

The machine body 100 includes a support plate 130, a support bar 140 fixed on the support plate 130, and the support ring 120 fixed on the support bar 140. The support rods 140 are welded on the support plate 130, and at least two support rods 140 are provided, so that the support rods 140 can be ensured to stagger the positions of the sleeves 400, interference is avoided, and the device can be adapted to the sleeves 400 with more sizes. The end of the support bar 140 is fixed on the inner side of the support ring 120, and the arc structure of the inner wall of the support ring 120 can form an up-and-down support with the support bar 140, so that the risk of up-and-down movement between the support ring 120 and the support bar 140 is reduced. In other alternative embodiments, the ends of the support bar 140 may be fixed to the end edges of the support ring 120 or to the outer wall of the support ring 120, but the two fixed positions of the arc-shaped structure of the support ring 120 do not form an up-and-down supporting relationship with the support bar 140, and the connection fixity does not connect the support bar 140 to the inner wall of the support ring 120 reliably.

The fixing lengths of the support bar 140 and the support ring 120 are shorter than the width of the support ring 120, so that interference between the support bar 140 and the slider 320 can be prevented.

As shown in fig. 1-2, the machine body 100 further includes a supporting frame 150 fixed on the supporting plate 130, the supporting frame 150 has an L-shaped supporting member 160 thereon, and the first gear 510 is installed between the two supporting members 160. The supporting frame 150 is fixed on the supporting plate 130 by screws, and a plurality of fixing holes for fixing the supporting frame 150 can be reserved on the supporting plate 130 so as to adapt to the engagement of the first gear and the second gear with different transmission ratios. Two grooves are formed in the supporting frame 150, and the two supporting pieces 160 are embedded into the grooves, so that the fixing stability of the supporting pieces 160 and the supporting frame 150 is improved, the first gear is prevented from shifting relative to the second gear, and the transmission reliability is improved. During testing, the handwheel can be rotated to different positions to perform different torque tests on the sleeve 400. After the test is finished, the handwheel is restored to the initial position, the screw used for fixing the sleeve 400 on the rotating seat 300 is taken out, and the fixing part 210 and the rotating part of the fixing seat 200 are loosened, so that the sleeve 400 can be taken out.

In the description of the present invention, it is to be understood that the terms "central," "lateral," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the figures, merely to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Claims

1. The utility model provides a gas peak regulation power station GIS sleeve pipe fatigue test device, its characterized in that, includes organism (100), be equipped with fixing base (200) and rotation seat (300) on organism (100), the one end of affiliated sleeve pipe (400) is fixed on fixing base (200), and the other end is fixed on rotating seat (300), still be equipped with organism (100) pivoted drive division (500) relatively on organism (100), drive division (500) with rotate seat (300) transmission and connect in order to drive rotate seat (300) and rotate.

2. The gas peak-shaving power station GIS sleeve fatigue testing device according to claim 1, wherein the fixing seat (200) comprises a fixing part (210) fixed on the machine body (100) and a sliding part (220) slidably mounted on the machine body (100), the fixing part (210) and/or the sliding part (220) is/are provided with a clamping groove for accommodating the sleeve (400), and the fixing part (210) and the sliding part (220) are locked and fixed through screws.

3. The gas peak-shaving power station GIS sleeve fatigue testing device according to claim 1, wherein a support ring (120) is fixed on the machine body (100), a rotating rod (310) crossing the support ring (120) is arranged on the support ring (120), the end of the rotating rod (310) is connected with the support ring (120) in a sliding manner, and the rotating base (300) is fixed in the middle of the rotating rod (310).

4. The gas peak-shaving power station GIS pipe fatigue testing device of claim 3, characterized in that a sliding block (320) is arranged between the supporting ring (120) and the rotating rod (310), the sliding block (320) is provided with an arc-shaped sliding groove, and the edge of the supporting ring (120) is embedded into the arc-shaped sliding groove.

5. The gas peak-shaving power station GIS sleeve fatigue testing device according to claim 3, characterized in that a first gear (510) and a second gear (520) are arranged between the driving part (500) and the rotating base (300), the first gear (510) is connected with the driving part (500), the second gear (520) is fixedly connected with the rotating base (300), and the first gear (510) is meshed with the second gear (520).

6. The gas peak-shaving power station GIS casing pipe fatigue testing device of claim 5, characterized in that the driving part (500) is a rotating hand wheel, the rotating hand wheel is coaxially connected with the first gear (510), and the second gear (520) is coaxial with the casing pipe (400).

7. The gas peak-shaving power station GIS bushing fatigue testing device of claim 5, characterized in that the gear ratio of the first gear (510) and the second gear (520) is 1: 3.

8. the gas peak-shaving power station GIS pipe fatigue testing device of claim 5, characterized in that the machine body (100) comprises a support plate (130), a support rod (140) fixed on the support plate (130), and the support ring (120) is fixed on the support rod (140).

9. The gas peak-shaving power station GIS sleeve fatigue testing device of claim 8, characterized in that the number of the supporting rods (140) is at least two, the ends of the supporting rods (140) are fixed at the inner side of the supporting ring (120), the fixed length of the supporting rods (140) and the supporting ring (120) is shorter than the width of the supporting ring (120), the rotating seat (300) is provided with a slot, and the sleeve (400) is inserted into the slot and fixed by screws.

10. The gas peak-shaving power station GIS casing fatigue testing device of claim 8, wherein the machine body (100) further comprises a support frame (150) fixed on the support plate (130), the support frame (150) is provided with an L-shaped support (160), and the first gear (510) is installed between the two supports (160).