CN115548999B - Vibration reduction support for rigid gas insulation power transmission line - Google Patents

Abstract

The invention discloses a vibration reduction support for a rigid gas insulated transmission line (GIL for short), which relates to the technical field of transmission line installation and comprises a hoop, wherein a saddle is arranged at the bottom end of the hoop, the hoop is welded on the saddle, limit stops are arranged at two ends of the saddle, air dampers are arranged on two sides of the bottom end of a bottom plate, bolt connecting holes are formed in the middle of the top end of each air damper, U-shaped notches are formed in one sides of two ends of the bottom plate, an air valve is arranged on one side of each air damper, a surface layer is arranged at the top end of each air damper, a filling layer is arranged at the bottom end of each surface layer, a fixed connecting layer is arranged at the bottom end of each filling layer, a support is arranged at the bottom end of the fixed connecting layer, second bolt assemblies are arranged at end angles of the vibration energy surface layer, and can be dissipated through the air dampers when the outside is received, so that the influence of the outside vibration on the GIL is weakened.

Description

Vibration reduction support for rigid gas insulation power transmission line

Technical Field

The invention relates to the technical field of power transmission line installation, in particular to a vibration reduction bracket for a rigid gas-insulated power transmission line.

Background

At present, rigid gas insulated transmission lines (GILs for short) of domestic and foreign engineering are applied in various ways, mainly comprising a gallery laying way, an open groove laying way, a ground laying way, an overhead laying way, a vertical shaft laying way, an inclined shaft laying way, a river (road) crossing laying way, and the GILs laid in a truss structure of a comprehensive pipe gallery, a road and a river which are crossed with a railway, a road and the like are easily influenced by vibration caused by factors such as trains, automobiles, wind and the like, and the vibration has a great influence on the operation safety of the GILs, so that a vibration reduction measure is needed to weaken the influence of external vibration on the GILs.

The main purpose of using an air vibration damping mount is to keep the natural frequency of the GIL away from the excitation frequency of external vibrations, thereby preventing resonance from causing mechanical failure of the internal structure of the GIL. Meanwhile, the air damper has better compression performance, and can reduce installation errors and foundation deformation. And the damage of the GIL equipment caused by overlarge local stress of the GIL equipment is prevented.

The prior art is mainly characterized in that rubber pads are lined between the anchor ear and the GIL, the thickness is about 5mm generally, and the actual using effect is not obvious under the working condition of strong vibration energy.

Disclosure of Invention

In order to overcome the above defects in the prior art, the present invention provides a vibration damping mount for a rigid gas-insulated power transmission line, which solves the above problems in the prior art.

The invention provides the following technical scheme: a vibration damping support for a rigid gas-insulated transmission line comprises a hoop, wherein a saddle is arranged at the bottom end of the hoop, the hoop is welded on the saddle, limit stops are arranged at two ends of the saddle, the saddle is movably connected with the limit stops, second bolt assemblies are arranged at the top ends of the limit stops, the second bolt assemblies penetrate through the limit stops and are arranged in the saddle and fixedly connected with the limit stops, a sliding block is arranged at the bottom end of the saddle, the saddle is movably connected with the sliding block, a stainless steel base plate is arranged at the bottom end of the sliding block, the bottom end of the limit stop is arranged on the stainless steel base plate, a bottom plate is arranged at the bottom end of the stainless steel base plate, air dampers are arranged at two sides of the bottom end of the bottom plate, bolt connecting holes are formed in the middle parts of the top ends of the air dampers, U-shaped notches are formed in one side of two ends of the bottom plate, and the second bolt assemblies are arranged in the bolt connecting holes, the utility model discloses an air damper, including first bolt subassembly, surface course, filling layer, fixed connection layer, air damper, surface course and bottom plate fixed connection, first bolt subassembly's top side is established in the U-shaped notch, air damper passes through bolted connection hole, second bolt subassembly, U-shaped notch and bottom plate fixed connection, one side of air damper is equipped with the inflating valve, inflating valve and air damper fixed connection, air damper's bottom is equipped with the surface course, air damper and surface course fixed connection, the bottom of surface course is equipped with the filling layer, surface course and filling layer fixed connection, the bottom of filling layer is equipped with the fixed connection layer, filling layer and fixed connection layer fixed connection, the bottom of fixed connection layer is equipped with the support, the end angle of surface course all is equipped with second bolt subassembly, second bolt subassembly runs through surface course, filling layer, fixed connection layer and support, surface course, filling layer, fixed connection layer, the bracket is fixedly connected through a second bolt assembly;

further, the wiring fixed orifices have been seted up to top one side of bottom plate, be equipped with second bolt assembly in the wiring fixed orifices, second bolt assembly runs through and is equipped with the wiring stationary blade, the wiring stationary blade passes through second bolt assembly, wiring fixed orifices and bottom plate fixed connection, the one end of wiring stationary blade is equipped with the earth connection, earth connection and wiring stationary blade fixed connection, the both ends of earth connection all are equipped with the wiring stationary blade, the wiring stationary blade of earth connection bottom is established in the bottom side of support, the wiring stationary blade of earth connection bottom passes through second bolt assembly and support fixed connection.

Further, the both sides of staple bolt all are equipped with the connection fixed block, connect fixed block and staple bolt fixed connection, the top of connecting the fixed block is equipped with first bolt assembly, first bolt assembly through connection fixed block and fixed connection, staple bolt and saddle welding are as an organic whole, the staple bolt is made for aluminum alloy material with the material of saddle.

Furthermore, the limit stop is made of high-strength polyethylene material.

Furthermore, the sliding block is made of high-strength polyethylene material, and the friction coefficient of the sliding block and the stainless steel base plate is 1.5.

Furthermore, one end of the support is provided with a corner block, the support is fixedly connected with the corner block, the support is a supporting structure of the whole system and is made of Q235 material, and hot galvanizing antiseptic treatment is performed on the surface of the support.

The invention has the technical effects and advantages that:

1. the air damper is provided with the second bolt assembly, the air damper and the U-shaped notch, so that all parts of equipment can be connected into a main body through the second bolt assembly, meanwhile, the air damper is composed of a sealing rubber diaphragm, a load supporting steel plate, a safety supporting structure and an inflating valve, the rubber elasticity is good, the whole stress is balanced, the air damper is of an air floating structure when in work, the low natural frequency is easily obtained, the safety supporting structure prevents the equipment from inclining, the inflating valve is sealed in a double-layer mode and is airtight, and the air damper is convenient to disassemble if damaged through the U-shaped notch.

2. The invention adds a novel device of the air damper on the basis of the original sliding support of the existing air damping support by arranging the air damper, the air damper is a damping device which takes air as a medium and utilizes air viscosity, the air has large compressibility, so that the air damper can bear large displacement and can provide damping in vertical and horizontal directions, the air viscosity does not change along with temperature change, the performance is stable during use, the ultralow natural frequency of 3-5Hz is suitable for weakening the vibration working conditions of high and low frequencies. Meanwhile, the air damper has high flexibility, and installation errors and foundation deformation can be reduced. The local stress of GIL equipment is prevented from being too large, the equipment is prevented from being damaged, the equipment can be dissipated through the air damper when receiving external vibration energy, accordingly, the influence of the external vibration on the GIL is weakened, the equipment has high flexibility, and installation errors and foundation deformation can be reduced.

3. The grounding wire and the wiring fixing piece are arranged, so that the GIL and the support can be conducted, and the damage of the suspension potential to the human body is eliminated.

4. According to the invention, the stainless steel backing plate and the sliding block are arranged, the friction coefficient of the stainless steel backing plate and the sliding block is 1.5, and the GIL can freely slide on the stainless steel plate under the action of thermal expansion and cold contraction.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a vibration damping mount for a rigid gas-insulated transmission line according to the present invention.

Fig. 2 is a schematic view of a load-bearing damping structure of a damping bracket for a rigid gas-insulated transmission line according to the present invention.

Fig. 3 is a schematic view of a hoop sliding structure of a vibration damping bracket for a rigid gas-insulated transmission line according to the present invention.

Fig. 4 is a schematic view of a sliding structure of a vibration damping mount for a rigid gas-insulated transmission line according to the present invention.

Fig. 5 is a schematic structural diagram of a floor slider of a vibration damping support for a rigid gas-insulated transmission line according to the present invention.

Fig. 6 is a schematic structural diagram of a grounding wire of a vibration damping bracket for a rigid gas-insulated power transmission line according to the present invention.

The reference signs are: 1. hooping; 101. connecting a fixed block; 102. a first bolt assembly; 2. a saddle; 3. a limit stop block; 4. a stainless steel backing plate; 5. a slider; 6. a support; 601. a corner block; 7. a second bolt assembly; 701. the bolt is connected with the hole; 8. an air damper; 801. a valve; 802. a filling layer; 803. a surface layer; 9. a ground line; 901. a wiring fixing hole; 902. a wiring fixing piece; 10. a base plate; 1001. a U-shaped notch; 11. and fixing the connecting layer.

Detailed Description

The present invention will be described more clearly and completely with reference to the accompanying drawings, and the forms of the structures described in the following embodiments are merely examples, and the vibration damping mount for a rigid gas insulated power transmission line according to the present invention is not limited to the structures described in the following embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts fall within the scope of the present invention.

Referring to fig. 1-6, the invention provides a vibration damping support for rigid gas-insulated power transmission lines, which comprises a hoop 1, wherein a saddle 2 is arranged at the bottom end of the hoop 1, the hoop 1 is welded on the saddle 2, limit stops 3 are respectively arranged at two ends of the saddle 2, the saddle 2 is movably connected with the limit stops 3, second bolt assemblies 7 are respectively arranged at the top ends of the limit stops 3, the second bolt assemblies 7 penetrate through the limit stops 3 and are fixedly connected in the saddle 2, a slide block 5 is arranged at the bottom end of the saddle 2, the saddle 2 is movably connected with the slide block 5, a stainless steel backing plate 4 is arranged at the bottom end of the slide block 5, the bottom end of the limit stop 3 is arranged on the stainless steel backing plate 4, a bottom plate 10 is arranged at the bottom end of the stainless steel backing plate 4, air dampers 8 are respectively arranged at two sides of the bottom end of the bottom plate 10, bolt connecting holes 701 are respectively arranged at the middle parts of the top ends of the air dampers 8, U-shaped notches 1001 are respectively arranged at one sides of two ends of the bottom plate 10, a second bolt component 7 is arranged in the bolt connecting hole 701, the top end side face of the second bolt component 7 is arranged in the U-shaped notch 1001, the air damper 8 is fixedly connected with the bottom plate 10 through the bolt connecting hole 701, the second bolt component 7 and the U-shaped notch 1001, one side of the air damper 8 is provided with an air valve 801, the air valve 801 is fixedly connected with the air damper 8, the bottom end of the air damper 8 is provided with a surface layer 803, the air damper 8 is fixedly connected with the surface layer 803, the bottom end of the surface layer 803 is provided with a filling layer 802, the surface layer 803 is fixedly connected with the filling layer 802, the bottom end of the filling layer 802 is provided with a fixed connecting layer 11, the filling layer 802 is fixedly connected with the fixed connecting layer 11, the bottom end of the fixed connecting layer 11 is provided with a support 6, the end corners of the surface layer 803 are provided with the second bolt components 7, the second bolt components 7 penetrate through the surface layer 803, the filling layer 802, the fixed connecting layer 11 is fixedly connected with the bracket 6, the surface layer 803, the filling layer 802, the fixed connecting layer 11 and the bracket 6 through a second bolt component 7;

referring to fig. 2 and 5, wiring fixed orifices 901 have been seted up to top one side of bottom plate 10, be equipped with second bolt assembly 7 in the wiring fixed orifices 901, second bolt assembly 7 runs through and is equipped with wiring stationary blade 902, wiring stationary blade 902 passes through second bolt assembly 7, wiring fixed orifices 901 and bottom plate 10 fixed connection, the one end of wiring stationary blade 902 is equipped with earth connection 9, earth connection 9 and wiring stationary blade 902 fixed connection, the both ends of earth connection 9 all are equipped with wiring stationary blade 902, the wiring stationary blade 902 of earth connection 9 bottom is established in the bottom side of support 6, the wiring stationary blade 902 of earth connection 9 bottom passes through second bolt assembly 7 and support 6 fixed connection, can eliminate the injury of suspension electric potential to the human body through earth connection 9.

Referring to fig. 4, staple bolt 1's both sides all are equipped with connects fixed block 101, connect fixed block 101 and staple bolt 1 fixed connection, the top of connecting fixed block 101 is equipped with first bolt assembly 102, first bolt assembly 102 through connection fixed block 101 and fixed connection, staple bolt 1 is as an organic whole with the saddle 2 welding, staple bolt 1 makes for aluminum alloy material with the material of saddle 2, when making GIL fix in staple bolt 1, more stable when receiving external force production vibration energy.

Referring to fig. 4, the limit stop 3 is made of high-strength polyethylene, and the high-strength polyethylene has better wear resistance, electrical insulation, toughness and cold resistance, so that the wear resistance, the electrical insulation, the toughness and the cold resistance of the limit stop 3 are improved to a certain extent.

Referring to fig. 4, the slider 5 is made of high-strength polyethylene, the friction coefficient between the slider 5 and the stainless steel backing plate 4 is 1.5, and the high-strength polyethylene has good wear resistance, electrical insulation, toughness and cold resistance, so that the wear resistance, electrical insulation, toughness and cold resistance of the slider 5 are improved to a certain extent, and the GIL can freely slide on the stainless steel plate under the action of thermal expansion and cold contraction.

Referring to fig. 2, one end of the bracket 6 is provided with a corner block 601, the bracket 6 is fixedly connected with the corner block 601, the bracket 6 is a supporting structure of the whole system, the bracket 6 is made of a Q235 material, the surface of the bracket 6 is subjected to hot galvanizing corrosion protection treatment, the Q235 has good comprehensive performance, and the strength, the plasticity, the welding performance and other performances are well matched, so that the application is most extensive.

The working principle of the invention is as follows: when the vibration reduction support works, equipment is installed on a rigid gas insulation power transmission line shell, a power transmission line is installed in a hoop 1, the power transmission line is enabled to be more stable through a first bolt assembly 102 fixedly connected with a fixing block 101, the hoop 1 is welded on a saddle 2 and is in contact with a stainless steel backing plate 4 through a slider 5, then the stainless steel backing plate 4 is connected with a bottom plate 10, an air damper 8 is arranged at the bottom end of the bottom plate 10, the air damper 8 is connected through a second bolt assembly 7 and is fixed with a support 6, the grounding line 9 is connected with the bottom plate 10 and the support 6, harm of suspension potential to a human body is eliminated, the GIL is enabled to be well supported, the influence of external vibration on the GIL can be reduced, meanwhile, the vibration reduction support has great flexibility, and the influence of installation errors and basic deformation on the GIL can be reduced.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," "connecting," and "connecting" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be directly connected, and "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims (6)

1. The utility model provides a damping support for rigid gas-insulated transmission line, includes staple bolt (1), its characterized in that: the bottom of staple bolt (1) is equipped with saddle (2), staple bolt (1) welding is on saddle (2), the both ends of saddle (2) all are equipped with limit stop (3), saddle (2) and limit stop (3) swing joint, the top of limit stop (3) all is equipped with second bolt assembly (7), just fixed connection is established in saddle (2) in limit stop (3) is run through in second bolt assembly (7), the bottom of saddle (2) is equipped with slider (5), saddle (2) and slider (5) swing joint, the bottom of slider (5) is equipped with nonrust steel backing plate (4), the bottom of limit stop (3) is established on nonrust steel backing plate (4), the bottom of nonrust steel backing plate (4) is equipped with bottom plate (10), the bottom both sides of bottom plate (10) all are equipped with air damper (8), bolted connection hole (701) have all been seted up at the top middle part of air damper hole (8), the both ends one side of bottom plate (10) has all seted up U1001, establish in second bolt assembly (7) the bolt assembly (701), the bolt assembly (701) side hole (701), connect the U-shaped groove (701) and pass through second bolt assembly (7) top bolt (701), the bottom bolt assembly (7) is connected, second bolt assembly (7), U-shaped notch (1001) and bottom plate (10) fixed connection, one side of air damper (8) is equipped with inflating valve (801), inflating valve (801) and air damper (8) fixed connection, the bottom of air damper (8) is equipped with surface course (803), air damper (8) and surface course (803) fixed connection, the bottom of surface course (803) is equipped with filling layer (802), surface course (803) and filling layer (802) fixed connection, the bottom of filling layer (802) is equipped with fixed connection layer (11), filling layer (802) and fixed connection layer (11) fixed connection, the bottom of fixed connection layer (11) is equipped with support (6), the end angle of surface course (803) all is equipped with second bolt assembly (7), second bolt assembly (7) run through surface course (803), filling layer (802), fixed connection layer (11) and support (6), surface course (803), filling layer (802), fixed connection layer (11), second bolt assembly (7) are through second bolt assembly (7) fixed connection.

2. The vibration damping mount for a rigid gas insulated transmission line according to claim 1, wherein: wiring fixing hole (901) has been seted up to top one side of bottom plate (10), be equipped with second bolt assembly (7) in wiring fixing hole (901), second bolt assembly (7) run through and are equipped with wiring stationary blade (902), wiring stationary blade (902) are through second bolt assembly (7), wiring fixing hole (901) and bottom plate (10) fixed connection, the one end of wiring stationary blade (902) is equipped with earth connection (9), earth connection (9) and wiring stationary blade (902) fixed connection, the both ends of earth connection (9) all are equipped with wiring stationary blade (902), the bottom side at support (6) is established in wiring stationary blade (902) of earth connection (9) bottom, the wiring stationary blade (902) of earth connection (9) bottom passes through second bolt assembly (7) and support (6) fixed connection.

3. The vibration damping mount for a rigid gas insulated transmission line according to claim 1, wherein: the both sides of staple bolt (1) all are equipped with connects fixed block (101), connect fixed block (101) and staple bolt (1) fixed connection, the top of connecting fixed block (101) is equipped with first bolt assembly (102), first bolt assembly (102) through connection fixed block (101) and fixed connection, staple bolt (1) and saddle (2) welding are as an organic whole, staple bolt (1) and the material of saddle (2) are made for aluminum alloy material.

4. The vibration damping mount for a rigid gas insulated transmission line according to claim 1, wherein: the limit stop (3) is made of high-strength polyethylene material.

5. The vibration damping mount for a rigid gas insulated transmission line according to claim 1, wherein: the sliding block (5) is made of high-strength polyethylene materials, and the friction coefficient of the sliding block (5) and the stainless steel base plate (4) is 1.5.

6. The vibration damping mount for a rigid gas insulated transmission line according to claim 1, wherein: one end of the support (6) is provided with a corner block (601), the support (6) is fixedly connected with the corner block (601), the support (6) is a supporting structure of the whole system, the support (6) is made of Q235, and the surface of the support (6) is subjected to hot galvanizing corrosion prevention treatment.

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