CN112928608B - Corrugated sliding friction energy consumption telescopic pipe bus for transformer substation - Google Patents
Corrugated sliding friction energy consumption telescopic pipe bus for transformer substation Download PDFInfo
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- CN112928608B CN112928608B CN202110330504.XA CN202110330504A CN112928608B CN 112928608 B CN112928608 B CN 112928608B CN 202110330504 A CN202110330504 A CN 202110330504A CN 112928608 B CN112928608 B CN 112928608B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
- H02G11/006—Arrangements of electric cables or lines between relatively-movable parts using extensible carrier for the cable, e.g. self-coiling spring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/06—Totally-enclosed installations, e.g. in metal casings
- H02G5/061—Tubular casings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Vibration Dampers (AREA)
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Abstract
The invention discloses a wavy sliding friction energy dissipation telescopic pipe bus for a transformer substation, which comprises a large-diameter pipe bus, a small-diameter pipe bus, an energy dissipation piece and a compensation assembly, wherein the large-diameter pipe bus is connected with the small-diameter pipe bus; the large-diameter tubular bus comprises a large-diameter end plate, and the large-diameter end plate is detachably connected in the large-diameter tubular bus; a wavy chute is arranged in the small-diameter tube bus; the energy dissipation sheet is arranged in the small-diameter tube bus and inserted into the wavy chute; one end of the compensation assembly is connected with the energy dissipation piece, and the other end of the compensation assembly is connected with the large-diameter end plate to compensate small deformation of the large-diameter tubular bus and the small-diameter tubular bus. Under small earthquake, the compensation assembly works to protect the energy dissipation sheet and the wavy chute from relative displacement, so that the energy dissipation sheet does not generate plastic deformation and does not need to be replaced and can be continuously used; under a heavy earthquake, the energy dissipation sheet interacts with the wavy sliding groove, and the energy dissipation sheet is plastically deformed to provide larger damping and have better shock resistance; and the expansion is only carried out on the bus, so that the disturbance on the electrical equipment is small, the anti-seismic performance of the electrical equipment is improved, and the electrical stability of the electrical equipment is ensured.
Description
Technical Field
The invention belongs to the technical field of seismic resistance of power transformation equipment, and particularly relates to a corrugated sliding friction energy consumption extension pipe bus for a transformer substation.
Background
The high-voltage transformer substation is vital in a power grid, electrical equipment of the transformer substation is usually made of ceramic or composite materials and other brittle materials, and the materials are easily damaged in the earthquake process, so that large-scale power failure of an area and even a backbone power grid is easily caused, and huge economic loss is caused.
Due to the damage of the power grid, serious adverse effects can be brought to earthquake relief work and post-disaster reconstruction work, and the gold 72-hour rescue time after an earthquake can be even delayed.
At present, the electrical equipment is subjected to shock absorption and isolation measures, the electrical equipment is protected by reducing the earthquake response of the electrical equipment, and the safety of a power system in the earthquake is improved. However, the seismic displacement response of the electrical equipment, which is relatively large due to the seismic isolation measures, is not favorable for the design of the connecting wires of the adjacent equipment.
The substation electrical equipment is usually connected by adopting a flexible lead or a pipe bus. The tubular bus connection has the characteristics of convenience in installation, simplicity in connection, stable performance and the like, and is widely applied to transformer substation equipment rooms. When the tubular bus is in live operation, the temperature rises, and in order to adapt to thermal expansion and cold contraction deformation of the pipeline, an expansion joint with a certain stroke is generally installed.
Because the dynamic characteristics of different electrical equipment are different, and the displacement of adjacent electrical equipment connected by the tubular bus is different under the action of an earthquake, the tubular bus still needs to have certain telescopic deformation capacity under the action of the earthquake.
In the existing transformer substation, a damping type hardware fitting is usually adopted as a damping element at the top of electrical equipment to connect the electrical equipment and a tubular bus. Due to the size limitation of the electrical equipment and the grading ring thereof, the sliding range of the damping type hardware fitting is usually small, so that the damping capacity of the damping type hardware fitting is limited. In addition, the damping type hardware fitting has a complex appearance, has a large influence on an electromagnetic field of a transformer substation, and is greatly limited in installation and use range. Because the tubular bus is completely nested in the damping type hardware, the hardware can be replaced only by completely drawing out the tubular bus in the process of power failure maintenance after earthquake, and one tubular bus is usually connected with a plurality of electrical equipment, so that the maintenance and debugging engineering amount is large when the tubular bus is completely drawn out and reinstalled, and the power failure time after earthquake is prolonged.
Disclosure of Invention
The invention aims to provide a corrugated sliding friction energy consumption extension tube bus for a transformer substation, which has small disturbance on electrical equipment and aims to overcome the defects in the prior art.
One technical solution adopted to achieve the above object is as follows:
a corrugated sliding friction energy consumption extension tube bus for a transformer substation comprises a large-diameter tube bus, a small-diameter tube bus, an energy consumption piece and a compensation assembly; the large-diameter tubular bus comprises a large-diameter end plate, and the large-diameter end plate is detachably connected in the large-diameter tubular bus; a wavy chute is arranged in the small-diameter tube bus; the energy dissipation piece comprises a straight line section and a wave section, a connecting plate is arranged outside the end part of the straight line section, and a stiffening piece is attached outside the straight line section; the energy dissipation sheet is arranged in the small-diameter tubular bus, and the wave section of the energy dissipation sheet is inserted into the wave-shaped sliding groove; the compensation assembly comprises a shell, a spring and a sliding shaft; the sliding shaft is arranged in the shell and is connected with the inner wall of the shell through a spring, the outer end of one sliding shaft extends out of the shell and is connected with the connecting plate of the energy dissipation sheet, the outer end of the other sliding shaft is hinged with the connecting rod, the other end of the connecting rod is hinged with the inner wall of the small-diameter tube bus, and the connecting rod is hinged with the large-diameter end plate through an axial rod and is used for compensating small deformation of the large-diameter tube bus and the small-diameter tube bus.
Preferably, the wavy chute comprises outer plates and fastening bolts, the outer plates are respectively arranged on two sides of the energy consumption piece and are locked through the fastening bolts, and gaps are reserved between the outer plates and the energy consumption piece.
Preferably, the energy dissipation piece is an aluminum sheet, the outer plate is an aluminum plate, and the thickness of the outer plate is larger than that of the energy dissipation piece.
Preferably, the shell is a square shell, the middle part of the shell is provided with a partition plate, and the two sides of the shell are provided with openings; and a support cushion layer is arranged between the shell and the inner wall of the small-diameter tubular bus.
Preferably, the sliding shaft is a T-shaped shaft; the baffle both sides are located to a pair of axle that slides, and the head one side of the axle that slides links to each other with the baffle through the spring, and the head opposite side passes through the spring and links to each other with the opening side inner wall of shell, and the pole portion and the external connection of the axle that slide.
Another technical solution adopted to achieve the above object is as follows:
a corrugated sliding friction energy consumption extension tube bus for a transformer substation comprises a large-diameter tube bus, a small-diameter tube bus, an energy consumption piece and a compensation assembly; the large-diameter tubular bus comprises a large-diameter end plate, and the large-diameter end plate is detachably connected in the large-diameter tubular bus; a wavy chute is arranged in the small-diameter tube bus; the energy dissipation piece comprises a straight line section and a wave section, a connecting plate is arranged outside the end part of the straight line section, and a stiffening piece is attached outside the straight line section; the energy dissipation sheet is arranged in the small-diameter tubular bus, and the wave section of the energy dissipation sheet is inserted into the wave-shaped sliding groove; the compensation assembly comprises a sector plate, the top of the sector plate is hinged with the inner wall of the small-diameter tube bus, and the bottom of the sector plate is connected with a connecting plate of the energy dissipation sheet through a connecting rod; the sector plates are connected with the large-diameter end plate through cross rods.
Preferably, the sector plate comprises a sliding chute, the sliding chute comprises a smooth section and a ratchet groove section, and the ratchet groove section faces to the generatrix of the large-diameter pipe; the sliding groove is internally provided with a sliding block which can move along the ratchet groove section towards the large-diameter pipe bus in a one-way manner, and the sliding block is connected with the connecting rod.
Preferably, the sliding block comprises a sliding seat and pawls, the pair of pawls is symmetrically arranged on the sliding seat, and a damping spring is arranged between the two pawls.
After the small-diameter tubular bus is put into use, the end part of the small-diameter tubular bus is inserted into the large-diameter tubular bus and assembled through the energy dissipation sheet and the compensation assembly, so that the small-diameter tubular bus and the large-diameter tubular bus are coaxially connected. Under a small earthquake, the compensation assembly works to protect the energy dissipation sheet and the wavy sliding groove from relative displacement, the energy dissipation sheet and the wavy sliding groove are not damaged and do not need to be replaced, and the energy dissipation sheet can be continuously used; under a large earthquake, the energy dissipation pieces and the wavy sliding grooves interact with each other, and the energy dissipation pieces generate plastic deformation to provide large damping and have good shock resistance; and the expansion is only generated on the bus, so that the disturbance on the electrical equipment is small, and the electrical stability of the electrical equipment is favorably improved. On the other hand, the whole expansion joint is arranged in the tubular bus, and the electrical performance of the tubular bus and the coupling system during normal operation is not affected.
Drawings
FIG. 1 is a schematic view of the connection of the present invention in use.
Fig. 2 is an enlarged schematic diagram of a connection node according to a first preferred embodiment of the present invention.
FIG. 3 is an enlarged top view of the assembly of the dissipation plate and the corrugated chute according to the first preferred embodiment.
FIG. 4 is an enlarged side view of the assembly of the energy dissipation plate and the wave-shaped sliding groove according to the first preferred embodiment.
Fig. 5 is an enlarged view of the assembly of the energy dissipation plate and the wavy sliding groove in the first preferred embodiment.
FIG. 6 is an enlarged schematic view of the energy consuming components in the first preferred embodiment.
Fig. 7 is an enlarged schematic diagram of a connection node according to a second preferred embodiment of the present invention.
Fig. 8 is an enlarged view of the assembly of the sliding groove and the sliding block in the second preferred embodiment.
Sequence numbers of the drawings:
1-a large-diameter pipe bus, 11-a large-diameter end plate;
2-a small-diameter tube bus bar,
21-a small-diameter end plate,
22-wave-shaped sliding groove, 221-outer plate, 222-fastening bolt;
3-the energy-consuming piece is arranged,
4-compensation assembly, 41-shell, 42-sliding shaft, 43-spring;
5-connecting the plates; 6, a stiffening sheet; 7-a support cushion layer; 8, connecting rods; 9-axial rod;
04-a compensation component II, wherein the compensation component II,
041-a fan-shaped plate which is provided with a plurality of holes,
042-slide block, 0421-slide block, 0422-pawl,
043-runner, 0431-smooth section, 0432-ratchet groove section.
Detailed Description
In a preferred embodiment, as shown in fig. 1, the corrugated sliding friction energy dissipation telescopic pipe bus for the substation disclosed in this embodiment includes a large-diameter pipe bus 1, a small-diameter pipe bus 2, an energy dissipation sheet 3, a compensation assembly 4, and the like; during assembly, the end part of the small-diameter tubular bus is inserted into the large-diameter tubular bus and assembled through the energy dissipation sheet and the compensation assembly, so that the small-diameter tubular bus 2 and the large-diameter tubular bus 1 are coaxial.
As shown in fig. 1 and 2, a large-diameter end plate 11 is arranged in one end of a large-diameter tubular busbar 1, the large-diameter end plate 11 is locked by a fastening piece penetrating through the busbar, and a countersunk hole is formed in the wall of the large-diameter tubular busbar so that the fastening piece does not protrude out of the busbar.
As shown in fig. 1-5, a small-diameter end plate 21 is arranged in the end of the small-diameter tubular bus 2, a through hole is formed in the small-diameter end plate for positioning a wavy chute 22, the wavy chute 22 is composed of a pair of outer plates 221 and a plurality of fastening bolts 222, the pair of outer plates are respectively arranged on two sides of the energy dissipation plate 3 during assembly and are locked through the fastening bolts, a gap is reserved between the outer plates and the energy dissipation plate so as to compensate deformation, and the damping value of the whole assembly can be adjusted by controlling the fastening force of the fastening bolts to adjust the friction force during sliding.
As shown in fig. 2-5, the energy dissipation sheet 3 can be an aluminum sheet, and is sequentially a straight line section and a wave section along the length direction, the length of the straight line section is greater than that of the straight line section of the outer plate, the outer end of the straight line section of the energy dissipation sheet is fixedly connected with the connecting plate 5, and the stiffening sheet 6 is arranged outside the area of the straight line section of the energy dissipation sheet, which is not coated with the outer plate, so as to prevent the energy dissipation sheet from buckling. The outer end of the connecting plate is connected with the compensation component 4.
As shown in fig. 2 and 6, the compensating assembly 4 includes a housing 41, a sliding shaft 42, and a spring 43. The outer casing 41 is a square casing, a partition plate is arranged in the middle of the outer casing to divide the inner cavity into two cavities, and openings are formed in the two sides of the outer casing; and a support cushion layer 7 is arranged between the bottom surface of the shell and the inner wall of the small-diameter tubular bus, and a super-slip coating is coated between the support cushion layer and the inner wall of the small-diameter tubular bus. The sliding shaft 42 is a T-shaped shaft; the two sides of the partition plate are respectively provided with a pair of sliding shafts, one side of the head of each sliding shaft is connected with the partition plate through a spring, and the other side of the head of each sliding shaft is connected with the inner wall of the opening side of the shell through a spring. The rod part of one of the sliding shafts is fixedly connected with the connecting plate, the rod part of the other sliding shaft is hinged with the connecting rod 8, the other end of the connecting rod is hinged with the inner wall of the small-diameter tube bus, and the connecting rod is connected with the large-diameter end plate through the axial rod 9. Aiming at ensuring that the compensation component ensures the energy consumption component under small earthquake, the length of the inner cavity of the shell and the rigidity of the spring are determined by earthquake-resistant calculation.
After the compensation assembly is put into use and is slightly shaken, the tube bus stretches to drive the spring with small rigidity in the compensation assembly to deform. Because the rigidity of the spring is small, the shell does not slide under the action of the friction force of the ultra-smooth coating, and the energy dissipation sheet does not generate plastic deformation. After a small earthquake, the energy dissipation assembly does not need to be replaced and can be continuously used. Under the condition of heavy earthquake, the sliding displacement is amplified through the connecting rod, the spring between the shell and the sliding shaft is compressed, and the rod part of the sliding shaft directly drives the shell to slide, so that the plastic deformation of the energy consumption piece is caused, the earthquake energy is consumed, and the earthquake response of the electrical equipment is reduced. In addition, the early warning force of the fixing bolt on the wavy sliding groove can be adjusted to adjust the sliding force of the energy dissipation sheet, and the damping value provided by the telescopic pipe nut can be adjusted.
In this embodiment, the entire extension length can be controlled by the amount of compression of the damping spring in the square component, and the two-way movement is possible. Under a small earthquake, the tubular bus stretches to drive the small-stiffness spring in the square component to deform. Under the heavy earthquake, the spring in the square component compresses, and the connecting rod directly drives the square component to slide. The size of the square assembly and the diameter of the connecting rod piece are determined by seismic calculation and design according to the factors such as the dynamic characteristics of the electrical equipment connected with the tubular bus, seismic fortification intensity, site conditions and the like.
When the damping ratio is specifically applied, the damping ratio is selected according to the dynamic characteristics of the electrical equipment and the requirement of seismic fortification, considering factors such as the limitation of connection conditions between the transformer substation equipment and the like. And (3) performing anti-seismic analysis and design on the coupling system of the extension tube and the electrical equipment, and selecting parameters such as the length, the rigidity, the number and the like of the spring with small rigidity. And determining the shape and length parameters of the wavy chute and the bolt fastening force parameters according to the calculation result.
When the large-diameter end plate is used on site, the large-diameter end plate is placed in the corresponding position in the large-diameter pipe and connected through the fastening piece. And placing the small-diameter end plate at a corresponding position in the small-diameter tube, connecting the small-diameter end plate by using a fastening piece, and embedding the small-diameter bus into the large-diameter bus.
When the system is normally used, the system can meet the requirement of stable operation of electrical equipment, can freely stretch and retract within a certain range, and can meet the requirements of thermal expansion and cold contraction of the electrical equipment and a tubular bus and mechanical vibration; under the action of high-intensity earthquake, the energy dissipation sheet generates nonlinear deformation, and the structural damping is increased, so that earthquake kinetic energy is consumed, and the earthquake response of the electrical equipment is reduced; in addition, the fastening piece is disassembled in the power failure maintenance process after the earthquake, the large and small diameter pipes are separated at the nesting position, and the expansion joint and the aluminum sheet in the middle of the sliding area are taken out and replaced.
Second preferred embodiment, as shown in fig. 7, the difference between this embodiment and the first preferred embodiment is that a new set of compensation components ii 04 is selected. The compensation assembly II 04 comprises a sector plate 041 and a sliding block 042, the top of the sector plate is hinged with the inner wall of the small-diameter tube bus, and the bottom of the sector plate is connected with a connecting plate through a connecting rod; the sector plate is connected with the large-diameter end plate through a cross rod. A sliding chute 043 is arranged on the plate body of the fan-shaped plate 041, as shown in fig. 8, the sliding chute comprises a smooth section 0431 and a ratchet groove section 0432, the ratchet groove section is adjacent to the large-diameter tube bus, and the tooth space of the ratchet groove section faces the large-diameter tube bus; the slider 042 comprises a slide carriage 0421 and pawls 0422, a pair of which are symmetrically arranged on the slide carriage, and a damping spring 0423 is arranged between the two pawls. During assembly, the sliding block is clamped into the sliding groove and is connected with the connecting rod, and the sliding block can only move towards the large-diameter pipe bus in one direction along the ratchet groove section due to the ratchet and the pawl.
In this embodiment, the whole telescopic length can be regulated and controlled by the rotating angle of the sector plate, and the sliding range is improved by amplifying the displacement of the sector plate. The lengths of the smooth section and the ratchet groove section are determined by seismic calculation and design according to factors such as the dynamic characteristics of electrical equipment connected with the tubular bus, seismic fortification intensity, site conditions and the like. The angle and depth of the ratchet groove section are determined according to the mechanical design according to the mechanical action between the ratchet groove and the ratchet teeth under the earthquake. In the initial state, the sliding block is integrally positioned in the sliding groove smooth area. The pawl is in a smooth area and is restrained by the pipe wall, and the damping spring is in a pressed state. The size and the material mechanics parameters of the damping spring are determined by the calculation of factors such as the dynamic characteristics of the electrical equipment, the seismic fortification intensity and the like. The normal equipment can slide in two directions when located in the smooth section under small earthquake, the slide block enters the ratchet groove section under large earthquake, the sliding can be carried out in one direction only, the deformation of the damping component is caused, and the earthquake response of the electrical equipment is reduced
Compared with the prior art, the invention has the following advantages:
(1) when the small-diameter tubular bus is used normally and is slightly shaken, the large-diameter tubular bus and the small-diameter tubular bus can freely slide, the normal mechanical vibration and the expansion and contraction deformation of the electrical equipment are not influenced, and after the small shake, the energy consumption assembly does not need to be replaced and can be continuously used.
(2) Under the condition of heavy earthquake, under the traction of the earthquake displacement of the electrical equipment, the energy consumption assembly is utilized to provide larger damping, so that the earthquake response of the electrical equipment is effectively slowed down, and the expensive electrical equipment is protected.
(3) Compared with the prior device which depends on metal sliding energy consumption, the device provided by the invention does not need to be arranged in the protection range of the grading ring, and has the advantages of large sliding stroke and more obvious energy consumption effect.
(4) All the parts are arranged inside the large and small diameter pipes, and the electric performance of the large and small diameter pipes and the coupling system during normal operation is not influenced; in addition, the expansion and contraction occur on the pipeline, so that the disturbance on the electrical equipment is small, and the electrical stability of the electrical equipment is favorably improved.
(5) The curve radian of the wavy sliding groove can be automatically modified according to actual requirements, and the energy dissipation piece can be randomly detached and replaced after being subjected to plastic deformation.
(6) The structure is simple, the manufacture is easy, the installation is convenient, the repair is easy after the earthquake, the electrical function of the equipment is not influenced when the device is used, and the device can be widely used for various transformer substations.
Claims (8)
1. The utility model provides a flexible pipe generating line of wave sliding friction power consumption for transformer substation which characterized in that: the large-diameter pipe bus, the small-diameter pipe bus, the energy dissipation sheet and the compensation assembly are included;
the large-diameter tubular bus comprises a large-diameter end plate, and the large-diameter end plate is detachably connected in the large-diameter tubular bus;
a wavy chute is arranged in the small-diameter pipe bus;
the energy dissipation piece comprises a straight line section and a wave section, a connecting plate is arranged outside the end part of the straight line section, and a stiffening piece is attached outside the straight line section;
the energy dissipation sheet is arranged in the small-diameter tubular bus, and the wave section of the energy dissipation sheet is inserted into the wave-shaped sliding groove;
the compensation assembly comprises a shell, a spring and a sliding shaft; the sliding shaft is arranged in the shell and is connected with the inner wall of the shell through a spring, the outer end of one sliding shaft extends out of the shell and is connected with the connecting plate of the energy dissipation sheet, the outer end of the other sliding shaft is hinged with the connecting rod, the other end of the connecting rod is hinged with the inner wall of the small-diameter tube bus, and the connecting rod is hinged with the large-diameter end plate through an axial rod and is used for compensating small deformation of the large-diameter tube bus and the small-diameter tube bus.
2. The corrugated sliding friction energy dissipation telescopic pipe bus for the substation of claim 1, wherein: the wavy chute comprises outer plates and fastening bolts, the outer plates are respectively arranged on two sides of the energy dissipation piece and are locked through the fastening bolts, and gaps are reserved between the outer plates and the energy dissipation piece.
3. The corrugated sliding friction energy dissipation telescopic pipe bus for the substation as claimed in claim 2, wherein: the energy dissipation piece is an aluminum sheet, the outer plate is an aluminum plate, and the thickness of the outer plate is larger than that of the energy dissipation piece.
4. The corrugated sliding friction energy dissipation telescopic pipe bus for the substation of claim 1, wherein: the shell is a square shell, the middle part of the shell is provided with a partition plate, and the two sides of the shell are provided with openings; and a support cushion layer is arranged between the shell and the inner wall of the small-diameter tubular bus.
5. The corrugated sliding friction energy dissipation telescopic pipe bus for the substation of claim 1, wherein: the sliding shaft is a T-shaped shaft; the baffle both sides are located to a pair of axle that slides, and the head one side of the axle that slides links to each other with the baffle through the spring, and the head opposite side passes through the spring and links to each other with the opening side inner wall of shell, and the pole portion and the external connection of the axle that slide.
6. The utility model provides a flexible pipe generating line of wave sliding friction power consumption for transformer substation which characterized in that: the large-diameter pipe bus, the small-diameter pipe bus, the energy dissipation sheet and the compensation assembly are included;
the large-diameter tubular bus comprises a large-diameter end plate, and the large-diameter end plate is detachably connected in the large-diameter tubular bus;
a wavy chute is arranged in the small-diameter pipe bus;
the energy dissipation piece comprises a straight line section and a wave section, a connecting plate is arranged outside the end part of the straight line section, and a stiffening piece is attached outside the straight line section;
the energy dissipation sheet is arranged in the small-diameter tubular bus, and the wave section of the energy dissipation sheet is inserted into the wave-shaped sliding groove;
the compensation assembly comprises a sector plate, the top of the sector plate is hinged with the inner wall of the small-diameter tube bus, and the bottom of the sector plate is connected with a connecting plate of the energy dissipation sheet through a connecting rod; the sector plates are connected with the large-diameter end plate through cross rods.
7. The corrugated sliding friction energy dissipation telescopic pipe bus for the substation of claim 6, wherein: the fan-shaped plate comprises a sliding chute, the sliding chute comprises a smooth section and a ratchet groove section, and the ratchet groove section faces to the large-diameter pipe bus; the sliding groove is internally provided with a sliding block which can move along the ratchet groove section towards the large-diameter pipe bus in a one-way manner, and the sliding block is connected with the connecting rod.
8. The corrugated sliding friction energy dissipation telescopic pipe bus for the substation of claim 7, wherein: the slider comprises a sliding seat and pawls, a pair of pawls is symmetrically arranged on the sliding seat, and a damping spring is arranged between the two pawls.
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| CN202110330504.XA CN112928608B (en) | 2021-03-25 | 2021-03-25 | Corrugated sliding friction energy consumption telescopic pipe bus for transformer substation |
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| CN202110330504.XA CN112928608B (en) | 2021-03-25 | 2021-03-25 | Corrugated sliding friction energy consumption telescopic pipe bus for transformer substation |
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| CN112928608B true CN112928608B (en) | 2022-02-15 |
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