CN217427610U - Multifunctional equipment connecting fitting for direct current field of converter station - Google Patents

Abstract

The utility model discloses a converter station direct current field is with multi-functional equipment link fitting, including preventing the corona ring subassembly, overflowing the gold utensil subassembly, slip/fixed connection pole subassembly, install the equipment terminal board in equipment one end, the corona ring subassembly is prevented including two parallel arrangement's anti-corona ring to equipment terminal board one side cantilever installation, and two anti-corona rings are located the upper and lower both sides of tubular busbar respectively, still install between equipment terminal board and tubular busbar and overflow gold utensil subassembly and slip/fixed connection pole subassembly. The fitting is arranged on an equipment terminal board, can meet the requirements of overcurrent connection between equipment, namely a tubular bus and the equipment, can also meet the requirements of mechanical connection of the equipment and the tubular bus in two sliding/fixing modes, and can also meet the requirements of insulation between a mechanical connecting part and the tubular bus, the whole fitting has very good anti-corona and noise-reducing effects, and the requirements of various service performances of overcurrent, machinery (sliding/fixing), anti-corona and fixed damping wires are met.

Description

Multifunctional equipment connecting fitting for direct current field of converter station

Technical Field

The utility model relates to a special high voltage direct current transmission line engineering converter station direct current field, in particular to 800kV direct current field is with slip/fixed dual-purpose type multifunctional equipment link fitting.

Background

At present, China has become a large direct-current transmission country with the largest direct-current transmission projects, the largest capacity and the longest lines in operation and under construction in the world. The converter station is an indispensable part in the direct current transmission project and is responsible for the important role of alternating current and direct current conversion. The direct current field serves as an important component of the converter station and plays an important role in the whole alternating current-direct current conversion, and the direct current field hardware fitting serves as a main electrical connection component for connecting all devices in the field, so that the direct current field hardware fitting not only meets the requirement on mechanical strength, but also bears long-term harsh examination on electrical performance.

The direct current field is located the valve hall outside, connects direct current transmission line and valve hall, installs various direct current distribution equipment in the field, and the direct current field gold utensil is installed in the open air, is different from the valve hall interior gold utensil and covers the dizzy-proof by the anti-dizzy ball, and the direct current field gold utensil is only through gold utensil self or installation anti-dizzy ring dizzy-proof. In addition, for hardware fittings which are arranged between the same devices and are used for connecting the pipe buses, although the electrical connection structures are the same, the mechanical connection needs to be a sliding structure and a fixing structure, the sliding structure and the fixing structure are designed in the past, the types of the hardware fittings are increased, and the field installation is not convenient.

CN 104577920B discloses an 800kV converter station direct current field polar line smoothing reactance terminal connection fitting in the prior art, and a sliding connection mechanism is arranged, but only in a sliding mode, the sliding connection mechanism cannot slide and fix multifunctional equipment for connection.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a 800kV direct current field is with slip/fixed dual-purpose type multi-functional equipment link fitting, can realize the mechanical connection demand of two kinds of differences of slip/fixation between equipment-tub generating line-the equipment, can realize overflowing and electric dizzy demand of preventing between the three again, still can install the inside damping wire of fixed tub generating line as required simultaneously, collect the mechanical connection of slip/fixing, overflow, prevent dizzy and install the multiple functions of damping wire as an organic whole.

In order to achieve the above object, the utility model provides a 800kV direct current field is with slip/fixed dual-purpose type multi-functional equipment link fitting installs between two the same equipment and tub generating line according to the overall arrangement of equipment-gold utensil (fixed type) -tub generating line-gold utensil (sliding type) -equipment, with the unsettled slip of tub generating line/fixed mounting between two the same equipment, communicates overflowing between two equipment.

The utility model discloses a converter station direct current field is with multi-functional equipment link fitting, including anti-corona ring subassembly, overflow fitting subassembly, slip/fixed link bar subassembly, install the equipment terminal board at equipment one end, anti-corona ring subassembly is installed to equipment terminal board one side cantilever, still install overflow fitting subassembly and slip/fixed link bar subassembly between equipment terminal board and tubular busbar, overflow fitting subassembly one end link equipment terminal board, the other end is connected outside the tubular busbar, slip/fixed link bar subassembly one end link equipment terminal board, the other end supports in the tubular busbar inboard, slip/fixed link bar subassembly includes slip/fixed link pole, spacing sleeve pipe, insulating barrier, tubular busbar head, insulating pulley and cross mount, slip/fixed link pole is the sub-assembly of a round bar and L type connecting plate, l type connecting plate jointing equipment terminal block, the pole other end is unsettled to stretch into the tub generating line inboard, at slip/fixed connection rod tip installation cross mount, install insulating pulley at cross mount tip, insulating pulley can paste and slide at tub generating line inside wall, set up tub generating line head at tub generating line tip, slip/fixed connection rod passes from the hole in the middle of tub generating line head, set up insulating barrier between slip/fixed connection rod and tub generating line head, insulating barrier is the structure of two semicircle concatenations, stop collar is a ring tubular structure, demountable installation is in the pole outside of slip/fixed connection rod.

The anti-corona ring assembly comprises two anti-corona rings arranged in parallel, the two anti-corona rings are respectively positioned on the upper side and the lower side of the tubular bus, and the anti-corona ring assembly further comprises an upper support frame and a lower support frame, one end of the upper support frame is fixedly connected with an equipment terminal board, the anti-corona ring above the other end of the upper support frame is fixedly connected with the equipment terminal board, and the anti-corona ring below the other end of the lower support frame is fixedly connected with the equipment terminal board.

Opening one side of the anti-corona ring, opening side towards equipment, parallel arrangement support cross arm on every anti-corona ring, be connected with the bracing piece between the support cross arm tip on two anti-corona rings respectively, support cross arm and upper bracket fixed connection on the anti-corona ring of top, support cross arm and lower carriage fixed connection on the anti-corona ring of below.

The overcurrent hardware assembly comprises a drainage plate, an overcurrent wire and a tubular bus overcurrent hardware, wherein the drainage plate is fixed on the equipment terminal board, the tubular bus overcurrent hardware is fixed on the outer side of the tubular bus, one end of the overcurrent wire is connected with the drainage plate, and the other end of the overcurrent wire is connected with the tubular bus overcurrent hardware.

Preferably, the drainage plate sets up to 4, and 4 independent drainage plates arrange the upper and lower both sides of equipment terminal board respectively in, and the tub mother overflows gold utensil and tub outer circular arc laminating department of generating line and sets up to the arcuation board, overflows the wire and sets up 8, and the symmetry sets up in tub generating line both sides to set up to the arc.

The improved damping wire clamp comprises a damping wire clamp body and a damping wire clamp pressing plate, wherein the damping wire clamp assembly is arranged on a threaded rod at the end part of a sliding/fixed connecting rod and is positioned on the inner side of a tubular bus, one end of the damping wire clamp body is fixed at the end part of the sliding/fixed connecting rod, the other end of the damping wire clamp pressing plate is fixed at the other end of the damping wire clamp body, and the end part of the damping wire is arranged in a wire slot between the damping wire clamp body and the damping wire clamp pressing plate.

The anti-corona ring assembly is installed on the equipment terminal board, and due to the overall equipment layout, no other supporting bearing points exist except the equipment terminal board, so that the installation of the anti-corona ring assembly is fixed to be a cantilever beam structure taking the equipment terminal board as a bearing point, the anti-corona ring assembly is divided into an upper anti-corona ring and a lower anti-corona ring, the upper anti-corona ring and the lower anti-corona ring are respectively located on the upper side and the lower side of the tubular bus, the whole set of hardware is covered, and the effective anti-corona noise reduction effect is achieved in the whole set of hardware.

The over-current hardware fitting assembly is arranged between the tubular bus and the equipment terminal board, is a key flow guide component of the whole set of products, and realizes communication and over-current between equipment, namely the tubular bus and the equipment. The overcurrent fitting comprises a drainage plate, an overcurrent lead and a tubular bus overcurrent fitting which are connected with an equipment terminal plate, and are respectively installed on the equipment terminal plate and the tubular bus to form an overcurrent channel, so that the functional requirement of fitting diversion is met.

The sliding/fixed connecting rod component and the drainage plate are arranged on the equipment terminal board in an overlapped mode, the other end of the sliding/fixed connecting rod component is connected with the pipe bus, the whole pipe bus, the pipe bus overcurrent hardware and part of overcurrent wires are supported and fixed by the sliding/fixed connecting rod component, and the sliding/fixed connecting rod component is a key stress component of the whole hardware. All parts are mutually combined and connected to form a mechanical connecting part which has dual purposes of sliding and fixing and can be insulated.

The damping wire clamp assembly is mounted on the threaded rod at the end of the sliding/fixed connecting rod for fixing the end of the damping wire in the tubular bus. The assembly is a completely independent movable part, can be used for selecting and matching the matched damping wire clamp according to the specification of the damping wire, is installed when needed, does not need to be detachable, has no influence on the mechanical and electrical properties of the whole set of hardware, and is convenient and flexible to install and use.

The four parts form a whole set of sliding/fixing dual-purpose multifunctional equipment connecting fitting which is arranged on an equipment terminal board, can meet the requirements of overcurrent connection between equipment, namely a tubular bus and the equipment, can also meet the requirements of mechanical connection of two sliding/fixing forms of the equipment and the tubular bus, can also meet the requirements of insulation between a mechanical connecting part and the tubular bus, and can also flexibly install a fixed damping wire according to the requirements.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a schematic structural view of the anti-halo assembly of the present invention;

FIG. 5 is a top view of FIG. 4;

FIG. 6 is a left side view of FIG. 4;

fig. 7 is a schematic structural view of the overcurrent fitting assembly of the present invention;

FIG. 8 is a top view of FIG. 7;

FIG. 9 is a left side view of FIG. 7;

FIG. 10 is a schematic view of the sliding/fixed link assembly of the present invention;

FIG. 11 is a top view of FIG. 10;

FIG. 12 is a left side view of FIG. 10;

fig. 13 is a schematic structural view of the damping wire clamp assembly of the present invention;

FIG. 14 is a schematic view of an insulating spacer structure according to an embodiment of the present invention;

FIG. 15 is a top view of FIG. 14;

wherein, 1-anti-corona ring component; 2-an overcurrent fitting assembly; 3-sliding/fixing link bar assembly; 4-damping wire clamp assembly; 5-equipment terminal board; 6-tubular bus; 7-anti-halo; 8-upper support frame; 9-a support bar; 10-lower support frame; 11-supporting the cross arm; 12-a drainage plate; 13-an overcurrent wire; 14-a tubular bus overcurrent fitting; 15-sliding/fixed connecting rods; 16-a limit sleeve; 17-an insulating spacer; 18-pipe bus seal head; 19-an insulating pulley; 20-a cross fixing frame; 21-damping wire clamp body; 22-damping wire clamp plate.

Detailed Description

The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in the figure, the utility model discloses a +/-800 kV current conversion station direct current field is with slip/fixed dual-purpose type multi-functional equipment link fitting installs between two the same equipment and pipe generating line according to the overall arrangement of equipment-gold utensil (fixed type) -pipe generating line-gold utensil (slip type) -equipment, with the unsettled slip of pipe generating line/fixed mounting between two the same equipment, communicates overflowing between two equipment. Including anti-corona ring subassembly 1, overflow gold utensil subassembly 2, slip/fixed connection pole subassembly 3 and damping fastener subassembly 4, install equipment terminal board 5 in equipment one end, anti-corona ring subassembly 1 is installed to equipment terminal board 5 one side cantilever, still install between equipment terminal board 5 and pipe generating line 6 and overflow gold utensil subassembly 2 and slip/fixed connection pole subassembly 3, overflow gold utensil subassembly 2 one end connecting device terminal board 5, the other end is connected in the 6 outsides of pipe generating line, 3 one end connecting device terminal boards 5 of slip/fixed connection pole subassembly, the other end supports at pipe generating line 6 inboards.

The anti-corona ring assembly 1 is used for anti-corona and noise reduction of a whole set of hardware fitting and comprises an anti-corona ring 7, an upper support frame 8, a support rod 9, a lower support frame 10 and a support cross arm 11. The anti-corona rings 7 are divided into an upper ring-shaped aluminum part and a lower ring-shaped aluminum part, one side of each anti-corona ring is provided with an opening, the anti-corona rings are arranged on the upper side and the lower side of the tubular bus 6, and the opening sides of the anti-corona rings are close to equipment so as to avoid the anti-corona rings of the equipment, so that the anti-corona rings are key anti-corona parts. The upper supporting frame 8 and the lower supporting frame 10 are mechanical bearing parts of the whole assembly, and because the assembly is of a cantilever beam structure, the whole weight is fixed on the equipment terminal board 5 through the two supporting frames, therefore, the supporting frames are formed by assembling and welding channel steel with excellent bending resistance, and the strength of the product can be ensured on the premise of reducing the dead weight of the product as far as possible. The corresponding position on the supporting frame is designed with a connecting hole which is used for connecting with the connecting hole on the supporting cross arm 11. 4 support rods 9 are respectively arranged between the upper and lower anti-halo rings 7, the two rings are fixed at a certain distance, and the upper and lower rings are kept to be in a stable cage-shaped structure. The upper and lower anti-corona rings respectively arranged on the supporting cross arm 11, and the two ends of the upper and lower anti-corona rings are overlapped with the connecting plate at the inner side of the ring body and connected with the end part of the supporting rod 9. The middle of the supporting cross arm is provided with a connecting hole for fixing the anti-corona ring 7 connected into a cage shape on the upper and lower supporting frames, and further installing and fixing the whole set of anti-corona ring assembly on the equipment terminal board. Connecting holes in the upper support frame 8, the lower support frame 10 and the support rod 9 and in the support cross arm 11 are all long round holes, and the directions of the long round holes in the two parts are mutually perpendicular, so that the design has the advantage that the relative mounting positions of the support and the ring body can be properly adjusted in two directions, and the problem that products cannot be mounted due to machining or construction mounting errors is avoided.

The over-current hardware fitting assembly 2 is used for over-current connection between equipment and the tubular bus 6, is arranged between the tubular bus 6 and the equipment terminal board 5, and is a key flow guide component of the whole set of product. The overcurrent clamp is composed of a drainage plate 12, an overcurrent lead 13 and a tubular bus overcurrent fitting 14, and is respectively installed on an equipment terminal plate 5 and a tubular bus 6 to form an overcurrent channel, so that the functional requirement of fitting diversion is met. The drainage plate 12 matches with the equipment terminal board 5, and in order to increase as far as possible and overflow the area of contact, avoid the terminal board phenomenon of overheating to appear in the operation process, the contact design that overflows here is two-sided contact structure, and 4 independent drainage plates 12 are arranged in the upper and lower both sides of equipment terminal board 5 respectively promptly, and furthest's increase overflows the area of contact. The tubular bus overflowing hardware tool 14 is an arc-shaped plate attached to an outer arc of the tubular bus 6, is welded with the tubular bus to be communicated with overflowing, and is provided with a larger groove at the periphery so as to be in full fusion contact with the tubular bus during welding and increase the flow conductivity. The drainage plate 12 and the tubular bus overcurrent fitting 14 are communicated by welding through overcurrent wires 13, the number of the overcurrent wires 13 is 8, the overcurrent wires are arranged on the left side and the right side, pure aluminum stranded wires with excellent welding and flow guiding performances are selected, and the number and the cross section are determined according to actual current-carrying capacity requirements. The arc is curved in advance before the welding, makes to overflow gold utensil subassembly 2 wholly to possess the elasticity on the one hand, can be applicable to two kinds of mounting structure of slip/fixed, also can be according to the proper flexible adjustment of actual installation distance to guarantee the smooth installation of gold utensil.

The sliding/fixing connecting rod component 3 is used for mechanical support of the tubular bus 6 and the overcurrent fitting component, is arranged between the equipment terminal board 5 and the tubular bus 6, is a mechanical bearing component in the whole fitting, and consists of a sliding/fixing connecting rod 15, a limiting sleeve 16, an insulating partition board 17, a tubular bus end socket 18, an insulating pulley 19 and a cross fixing frame 20. The sliding/fixing connecting rod 15 is a welded assembly of a round rod and an L-shaped connecting plate, the size of the L-shaped plate is matched with the size of the position of the connecting hole, the size of the connecting hole is matched with that of the equipment terminal plate 5, and the round rod is used for supporting the tubular bus 6. Insulating pulley 19 adopts insulating material preparation, installs at the periphery of cross mount 20, forms a slip gyro wheel structure, wholly installs again at the tip of slip/fixed link rod 15, penetrates to tub generating line 6 in through the hole in the middle of tub generating line head 18, the slip gyro wheel structure can slide along tub generating line in tub female hole, the design of cross gyro wheel structure does benefit to wholly in tub generating line relatively steady direction and slip, the dead weight of the stay tube generating line that also can be better simultaneously. The tubular bus bar end socket 18 is used for plugging the end of the tubular bus bar 6 and plays a role in guiding the sliding/fixing connecting rod. Insulating barrier 17 also adopts insulating material, the structure for two semicircle concatenations, circular connecting plate and tub generating line head 18 match the installation, protruding semicircular tubular structure card penetrates the hole that tub generating line head center was reserved together on the slip/fixed link pole, so design for two halves concatenation is for the welding between considering tub generating line head 18 and tub generating line 6, if for whole circle structure, need install in advance before the welding, heat during the welding can damage insulating barrier, consequently, design for semicircle mosaic structure, can install after the welding, avoid the damage of welding heat to insulating barrier 17. The limiting sleeve 16 is a ring-shaped structure and is designed with a hole matched with the sliding/fixing connecting rod 15, and the sliding/fixing dual-purpose performance of the product is realized due to the design of the part. If need install for fixed knot structure, then install this spacing sleeve pipe, if need install for sliding construction, then demolish this spacing sleeve pipe, the installation is dismantled simple and conveniently. Wherein insulating baffle 17 and insulating pulley 19's design, effectual messenger's slip/fixed link pole separates with overflowing that the part is insulating, guarantees it again through L type connecting plate and drainage plate 12 contact when insulating to make slip/fixed link pole subassembly 3 whole and equipment equipotential, not form unnecessary again and overflow the return circuit and produce electromagnetic effect, effectual anti-dizzy and reduce electromagnetic loss.

The damping wire clamp assembly 4 is used for fixing a damping wire installed in the tubular bus 6, is installed on a threaded rod at the end part of the sliding/fixed connecting rod 15, and consists of a damping wire clamp body 21 and a damping wire clamp pressing plate 22. The end of the damping wire is arranged in the middle wire groove and is clamped by a fastening bolt. The assembly is a completely independent movable part, can be used for selecting and matching the damping wire clamp according to the specification of the damping wire, is installed when needed, does not need to be detachable, has no influence on the mechanical and electrical properties of the whole set of hardware fitting, and is convenient and flexible to install and use.

The four above four bibliographic categories have constituted a whole set of sliding/fixed dual-purpose type multifunctional equipment link fitting, install between equipment and tub generating line, prevent dizzy ring subassembly 1 and realized effectively preventing dizzy of a whole set of gold utensil and fall making an uproar, it has realized the connection that overflows between equipment and the tub generating line to overflow gold utensil subassembly 2, the unsettled support of tub generating line has been realized promptly to slip/fixed link rod subassembly 3, the installation that can be convenient nimble as required again is sliding type or fixed type structure, and simultaneously, its insulating part can effectually avoid again forming unnecessary return circuit, damping fastener subassembly 4 has realized the fixed of fixed damping line. The whole set of hardware fitting can meet the requirements of overcurrent connection between equipment, namely pipe buses and equipment, mechanical connection of the equipment and the pipe buses in two sliding/fixing modes, insulation between a mechanical connecting part and the pipe buses, and flexible installation and fixation of damping wires according to needs, has very good anti-corona and noise-reducing effects, and integrates multiple functions of sliding/fixing dual-purpose machinery, overcurrent, anti-corona and damping wire installation.

Claims (6)

1. The utility model provides a converter station direct current field is with multi-functional equipment link fitting which characterized in that: the device comprises an anti-corona ring assembly, an over-current hardware assembly and a sliding/fixed connecting rod assembly, wherein an equipment terminal board is installed at one end of the device, the anti-corona ring assembly is installed on a cantilever at one side of the equipment terminal board, the over-current hardware assembly and the sliding/fixed connecting rod assembly are also installed between the equipment terminal board and a tubular bus, one end of the over-current hardware assembly is connected with the equipment terminal board, the other end of the over-current hardware assembly is connected with the outer side of the tubular bus, one end of the sliding/fixed connecting rod assembly is connected with the equipment terminal board, the other end of the sliding/fixed connecting rod assembly is supported at the inner side of the tubular bus, the sliding/fixed connecting rod assembly comprises a sliding/fixed connecting rod, a limiting sleeve, an insulating partition plate, a tubular bus end socket, an insulating pulley and a cross fixing frame, the sliding/fixed connecting rod is a combined part of a round rod and an L-shaped connecting plate, the other end of the round rod is suspended and extends into the inner side of the tubular bus, the end part of the sliding/fixed connecting rod is provided with a cross fixing frame, the end part of the cross fixing frame is provided with an insulating pulley, the insulating pulley can be attached to the inner side wall of a tubular bus to slide, the end part of the tubular bus is provided with a tubular bus end socket, the sliding/fixed connecting rod penetrates through a hole in the middle of the tubular bus end socket, an insulating partition plate is arranged between the sliding/fixed connecting rod and the tubular bus end socket, the insulating partition plate is of a structure formed by splicing two semicircles, a limiting sleeve is of a ring pipe-shaped structure, and the limiting sleeve is detachably mounted on the outer side of a round rod of the sliding/fixed connecting rod.

2. The multifunctional equipment link fitting for the direct-current field of the converter station as claimed in claim 1, wherein: the anti-corona ring assembly comprises two anti-corona rings arranged in parallel, the two anti-corona rings are respectively positioned on the upper side and the lower side of the tubular bus, and the anti-corona ring assembly further comprises an upper support frame and a lower support frame, one end of the upper support frame is fixedly connected with an equipment terminal board, the anti-corona ring above the other end of the upper support frame is fixedly connected with the equipment terminal board, and the anti-corona ring below the other end of the lower support frame is fixedly connected with the equipment terminal board.

3. The multifunctional equipment link fitting for the converter station direct current field according to claim 2, characterized in that: opening one side of the anti-corona ring, opening side towards equipment, parallel arrangement support cross arm on every anti-corona ring, be connected with the bracing piece between the support cross arm tip on two anti-corona rings respectively, support cross arm and upper bracket fixed connection on the anti-corona ring of top, support cross arm and lower carriage fixed connection on the anti-corona ring of below.

4. The multifunctional equipment link fitting for the direct current field of the converter station as claimed in claim 1, 2 or 3, wherein: the overcurrent hardware assembly comprises a drainage plate, an overcurrent wire and a tubular bus overcurrent hardware, wherein the drainage plate is fixed on the equipment terminal board, the tubular bus overcurrent hardware is fixed on the outer side of the tubular bus, one end of the overcurrent wire is connected with the drainage plate, and the other end of the overcurrent wire is connected with the tubular bus overcurrent hardware.

5. The multifunctional equipment link fitting for the direct-current field of the converter station as claimed in claim 4, wherein: the drainage plate sets up to 4, and 4 independent drainage plates arrange the upper and lower both sides of equipment terminal block respectively in, and the tub mother overflows gold utensil and manages the outer circular arc laminating department of generating line and sets up to the arcuation board, overflows the wire and sets up 8, and the symmetry sets up in tub generating line both sides to set up to the arc.

6. The multifunctional equipment link fitting for the converter station direct current field according to claim 5, characterized in that: the damping wire clamp assembly is arranged on a threaded rod at the end part of the sliding/fixed connecting rod and positioned on the inner side of the tubular bus and comprises a damping wire clamp body and a damping wire clamp pressing plate, one end of the damping wire clamp body is fixed at the end part of the sliding/fixed connecting rod, the other end of the damping wire clamp body is fixed with the damping wire clamp pressing plate, and the end part of the damping wire is arranged in a wire slot between the damping wire clamp body and the damping wire clamp pressing plate.

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