CN105221650B - A kind of damping device and its application method for electrical equipment - Google Patents

A kind of damping device and its application method for electrical equipment Download PDF

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Publication number
CN105221650B
CN105221650B CN201510565954.1A CN201510565954A CN105221650B CN 105221650 B CN105221650 B CN 105221650B CN 201510565954 A CN201510565954 A CN 201510565954A CN 105221650 B CN105221650 B CN 105221650B
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China
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parts
damping
damper
electrical equipment
eps
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CN105221650A (en
Inventor
张雪松
朱宽军
周立宪
刘胜春
刘彬
牛海军
孙娜
张军
杨益
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
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Abstract

The present invention provides a kind of damping device and its application method for electrical equipment, and described device includes the supporting table (20) set gradually from the bottom to top, dampening assembly (21) and electrical equipment (22);Flexible concrete column (6), damper (2) and the cover board (1) that the dampening assembly (21) is equipped with support element (5) by fixed frame (4), its vertical direction being set in the fixed frame (4) form;The application method of described device includes:1) flexible concrete is prepared;2) fixed frame is horizontally placed in supporting table;3) in being vertically arranged support element in the fixed frame, and flexible concrete is poured into a mould to the height contour with the support element;4) damper is horizontally placed on flexible concrete column and is connect with support element;5) high voltage electric equipment is fixed on above damper.Damper and flexible concrete dual shock absorption control structure is utilized in the damping device of the present invention, with strong, the easy for construction feature of cushioning ability.

Description

A kind of damping device and its application method for electrical equipment
Technical field
The present invention relates to a kind of substation equipment damping devices, and in particular to a kind of damping device for electrical equipment and Its application method.
Background technology
China is more earthquake countries, and the electric power facility of earthquake territory not only needs good technology arrangement, but also needs to have Good anti-seismic performance.In recent years, lead damper damping control technology is applied in substation.General lead damper peace It is easy to be made its durability by the erosion of environment due to being chronically exposed in external environment mounted in the junction of flange and equipment It can decline, and then lead to the decline of its cushioning ability, when encountering violent earthquake, lead damper shockproof control ability, which is not achieved, to be wanted It asks, is damaged so as to cause power equipment.
A kind of new damping device how is designed, there is excellent shockproof control ability, and can be avoided extraneous harmful The erosion of medium has good endurance quality, can effectively reduce the earthquake response of the towering electrical equipment of substation, prevent The towering electrical equipment of substation is damaged under big shake effect.
Invention content
The object of the present invention is to provide a kind of damping devices and its application method for electrical equipment.Subtracting in the device Shaking component has two kinds of shockproof control structures of damper and flexible concrete, has higher shockproof control ability.
To achieve the goals above, the present invention takes following technical scheme:
A kind of damping device for electrical equipment, described device include the supporting table (20) set gradually from the bottom to top, Dampening assembly (21) and electrical equipment (22);The dampening assembly (21) by fixed frame (4), be set to the fixed frame (4) in Its vertical direction is equipped with flexible concrete column (6), damper (2) and cover board (1) composition of support element (5);The support element (5) For the cylinder equipped with boss.
First preferred embodiment of the damping device for electrical equipment, the support element (5) and the damper (2) it is upward that same vertical axes are set to, are had the gap between the cover board (1) at the top of the damper (2).
Second preferred embodiment of the damping device for electrical equipment, the fixed frame (4) is square steel tube, described Cylinder (5) equipped with boss is band tooth round steel, and the flexible concrete (6) is EPS high polymer flexible concretes, the damping Device (2) is lead damper.
The third preferred embodiment of the damping device for electrical equipment, the EPS high polymers flexible concrete by Lower component as mass fraction is made:80-120 parts of cement, 10-20 parts of carboxylic styrene butadiene latex, 30-40 parts of sand, water 40-50 Part, 1-5 parts of EPS particles, 1-3 parts of UNF-5 high efficiency water reducing agents.
4th preferred embodiment of the damping device for electrical equipment, the EPS high polymers flexible concrete by Lower component as mass fraction is made:100 parts of cement, 15 parts of carboxylic styrene butadiene latex, 35 parts of sand, 42 parts of water, EPS particles 2.8 Part, 2 parts of UNF-5 high efficiency water reducing agents.
5th preferred embodiment of the damping device for electrical equipment, the cement are P.O42.5 grades of label Portland cement.
6th preferred embodiment of the damping device for electrical equipment, the bulk density of the sand is 1000~ 1300kg/m3
7th preferred embodiment of the damping device for electrical equipment, the EPS particles are primary EPS particles, Its density is 18~20kg/m3
A kind of application method of the damping device for electrical equipment, described method includes following steps:
1) flexible concrete is prepared;
2) fixed frame is horizontally placed in supporting table;
3) in being vertically arranged support element in the fixed frame, and flexible concrete is poured into a mould to the height contour with the support element Degree;
4) damper is horizontally placed on flexible concrete column and is connect with support element;
5) high voltage electric equipment is fixed on above damper.
First optimal technical scheme of the application method of the damping device for electrical equipment, institute in the method It is high-strength bolt with bolt.
The structure of dampening assembly of the present invention is as shown in Fig. 1.The dampening assembly is by fixed frame, damper, support element, flexibility Concrete and cover board composition.The effect of fixed frame mainly constrains flexible concrete and improves its deformability, makes damper always From the erosion of external environment in environment in alkalinity.The top fillet weld seam of fixed frame ribbed stiffener is to fixed frame top The reinforcement of portion gap position rigidity.
The construction of lead damper is as shown in Fig. 2, and steel protruding shaft is placed in lead damper internal cavities, in steel protruding shaft Mandrel is located in spacing supporting, and spacing supporting plays the positioning action of steel protruding shaft and makes it that can only move up and down.In cavity Filler is lead.When steel protruding shaft moves up and down, lead is extruded, and dissipation seismic energy is deformed to generate plastic extrusion.
Attached drawing 3 show the structure with tooth round steel, is connected with the lower end of lead damper by inner bolt, plays fixed lead In addition the effect of damper is fixed on by positioning device in EPS high polymer flexible concretes.When earthquake, equipment drives steel protruding shaft It is moved in the limiting device of lead damper, while lead damper being driven to be moved within the scope of circle square steel tube gap.And lead damps Band tooth round steel relative motion in EPS high polymer flexible concretes is driven when device moves again, the tooth with tooth round steel is in EPS high-dampings Squeezing action is generated in flexible concrete, to further dissipate ground using the damping of EPS polymer flexibility concrete and large deformation Shake energy.
The application method and device front view of damping device of the present invention are as shown in figures 4 and 5:It prepares first flexible mixed Solidifying soil;The fixed frame is horizontally placed in supporting table;In being vertically arranged support element in the fixed frame, and pour into a mould flexible mixed The solidifying soil extremely height contour with the support element;Damper is horizontally placed on flexible concrete column and is connect with support element; Ribbed stiffener is connect with steel pipe with fillet weld, and top plate is connect with four wall of steel pipe with fillet weld;Finally with across vessel flange disk and steel The high-strength bolt of pipe connection top plate is connected in the internal thread hole of lead damper steel protruding shaft.
EPS high polymer flexible concretes have isotropism cushion energy absorbing property, and cementitious material is mainly common silicic acid Salt cement and carboxylic styrene butadiene latex.The characteristic of the component materials of concrete and effect are as follows:
1) Portland cement
The present invention is using the Portland cement marked as P.O42.5 grades.
2) carboxylic styrene butadiene latex
Carboxylic styrene butadiene latex is high molecular polymer.Milky blueing light, solid content are 40~50%, and pH value is in 7-9 Between.Technical indicator is as shown in table 1.The carboxylic styrene butadiene latex is one made of styrene, butadiene and acrylic acid ternary polymerization Kind of macromolecule carboxylic styrene butadiene latex has higher adhesive strength, excellent mechanical stability and chemical stability and excellent Rheological property, it is nontoxic, non-corrosive, non-volatile, do not burn.Cement mortar is mixed into carboxylic in technical solution provided by the invention Base styrene-butadiene latex, after improve damping capacity because when carboxylic styrene butadiene latex and cement mortar are mixed and stirred, coagulated inside this mix It is polymerized to the Filamentous film layer being interweaved with cement gel, sand grains is securely bonded together, the network knot of interpenetrating is formed Structure.Such structure significantly enhances the deformability of cement mortar, generates and squeezes with polymer flexibility concrete in band tooth round steel When pressure movement, the response lag of this network structure is in stress, and the distorted movement of lag will overcome larger damping, this process It converts mechanical energy to thermal energy and dissipates.
1 carboxylic styrene butadiene latex liquid of table
Technical indicator Measured value
Appearance Milky band blue light liquid
Solid content 47%
PH value 7~9
Free styrene 0.01%
Surface tension (mN/m) 35
Viscosity (mPas BShi viscosity 60rpm) 70.0
80 mesh gel contents 0.0009%
3) sand
Sand is to constitute the most important material of EPS light aggregate concrete elastic skeletons, it and portland cement are jointly to EPS The mechanical property of light aggregate concrete plays an important role.Sand used in the present invention is that bulk density is 1000~1300kg/ m3Clean circular granular natural river sand.
4) water
Mixed concrete and the water of maintenance are tap water and clean natural water.
5) EPS particles
Foamed polystyrene (EPS) grain density is very low, EPS used in technical solution of the present invention be density 18~ 20kg/m3Primary EPS particles, EPS materials have good plastic deformation ability.To after mixing EPS particles in concrete, pole The big deformability for improving concrete, becomes a kind of flexible concrete.Absorb ground using the big deformability of EPS particles Shake energy.
6) the non-research work of air entrained type high efficiency water reducing agents of UNF-5
After adding EPS particles, since cement mortar is to the package action of particle, intergranular friction is notable, new to reduce The mobility of mixed concrete.For this purpose, a certain amount of water-reducing agent should be added to improve the new mobility for mixing EPS celluar concretes.UNF-5 High efficiency water reducing agent can significantly improve the mobility of concrete mix, which improves concrete batching system workability The reason of can be summarized as absorption-peptizaiton, lubricating action.
Compared with the latest prior art, technical solution of the present invention has the following advantages that:
1) lead damper is encapsulated in square steel tube in the present invention, around there is the guarantor of the EPS high polymer flexible concretes of alkalinity Shield, can make lead alloy damper from the erosion of external environment, improve the durability of lead damper;
2) in addition, EPS high polymer flexible concretes are encapsulated in square steel tube by the present invention make the concrete be in three-dimensional by Pressure condition can further increase the deformability of polymer flexibility concrete;
3) damping control system of damping device of the present invention is utilized metal and is mixed with flexible EPS high polymer flexibilities Solidifying soil dual shock absorption control structure, thus cushioning ability is improved, feature easy for construction;
4) vibration absorber of the invention can effectively greatly reduce the earthquake response of the towering electrical equipment of substation, The electrical equipment for keeping substation towering is from earthquake damage.
Description of the drawings
Fig. 1:The dampening assembly of the present invention, wherein a front views, the connection diagram of b ribbed stiffeners and square steel tube, c fixed frames Top plate;
Fig. 2:Lead damper;
Fig. 3:Band tooth round steel;
Fig. 4:The application method step of damping device of the present invention;
Fig. 5:The front view of damping device of the present invention;
Wherein:
1 cover board;2 dampers;3 connectors;4 fixed frames;5 support elements;6 flexible concrete columns;7 ribbed stiffeners;8 fixing ends;9 Bolt hole;10 bolts hole;11 connecting holes;12 limiting devices;13 steel protruding shafts;14 lead;15 outer steel shells;16 steel protruding shaft Inner bolt holes; 17 round steel;18 steel-tooths;19 fixing pieces;20 electrical equipments;21 dampening assemblies;22 supporting tables
Specific implementation mode
For the present invention is better described, it is easy to understand technical scheme of the present invention, it is as follows that the present invention lists embodiment:
Embodiment 1
A kind of damping device for electrical equipment, described device include the supporting table set gradually from the bottom to top, damping Component and electrical equipment;The dampening assembly is by square steel tube, lead damper, band tooth round steel, EPS high polymers flexible concrete and lid Board group at.
The EPS high polymers flexible concrete is made of following components as mass fraction:100 parts of cement, carboxyl fourth 15 parts of benzene latex, 35 parts of river sand, 42 parts of water, 2.8 parts of EPS particles, 2 parts of UNF-5 high efficiency water reducing agents.
The application method of described device:1) flexible concrete is prepared;2) square steel tube is horizontally placed in supporting table; 3) in being vertically arranged band tooth round steel in the square steel tube, and EPS high polymers flexible concrete is poured into a mould to the band tooth round steel etc. High height;4) by lead damper be horizontally placed on EPS high polymer flexible concrete columns and with band tooth round steel, ribbed stiffener and steel Effective fillet weld connection, top plate are connect with four wall of steel pipe with fillet weld;5) finally with across vessel flange disk and fastener for connection top The high-strength bolt of plate is connected in the Inner bolt holes of lead damper steel protruding shaft.
Embodiment 2
A kind of damping device for electrical equipment, described device include the supporting table set gradually from the bottom to top, damping Component and electrical equipment;The dampening assembly is by square steel tube, lead damper, band tooth round steel, EPS high polymers flexible concrete and lid Board group at.
The EPS high polymers flexible concrete is made of following components as mass fraction:85 parts of cement, Carboxy 10 parts of latex, 40 parts of river sand, 45 parts of water, 2 parts of EPS particles, 1.5 parts of UNF-5 high efficiency water reducing agents.
The application method of described device:1) flexible concrete is prepared;2) square steel tube is horizontally placed in supporting table; 3) in being vertically arranged band tooth round steel in the square steel tube, and EPS high polymers flexible concrete is poured into a mould to the band tooth round steel etc. High height;4) by lead damper be horizontally placed on EPS high polymer flexible concrete columns and with band tooth round steel, ribbed stiffener and steel Effective fillet weld connection, top plate are connect with four wall of steel pipe with fillet weld;5) finally with across vessel flange disk and fastener for connection top The high-strength bolt of plate is connected in the Inner bolt holes of lead damper steel protruding shaft.
Embodiment 3
A kind of damping device for electrical equipment, described device include the supporting table set gradually from the bottom to top, damping Component and electrical equipment;The dampening assembly is by square steel tube, lead damper, band tooth round steel, EPS high polymers flexible concrete and lid Board group at.
The EPS high polymers flexible concrete is made of following components as mass fraction:110 parts of cement, carboxyl fourth 20 parts of benzene latex, 40 parts of river sand, 50 parts of water, 4 parts of EPS particles, 2.5 parts of UNF-5 high efficiency water reducing agents.
The application method of described device:1) flexible concrete is prepared;2) square steel tube is horizontally placed in supporting table; 3) in being vertically arranged band tooth round steel in the square steel tube, and EPS high polymers flexible concrete is poured into a mould to the band tooth round steel etc. High height;4) by lead damper be horizontally placed on EPS high polymer flexible concrete columns and with band tooth round steel, ribbed stiffener and steel Effective fillet weld connection, top plate are connect with four wall of steel pipe with fillet weld;5) finally with across vessel flange disk and fastener for connection top The high-strength bolt of plate is connected in the Inner bolt holes of lead damper steel protruding shaft.
The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, the ordinary skill people of fields Member, which should be appreciated that, can be modified or replaced equivalently the specific implementation mode of the present invention with reference to above-described embodiment, these Without departing from any modification of spirit and scope of the invention or equivalent replacement apply pending claims it It is interior.

Claims (7)

1. a kind of damping device for electrical equipment, described device includes the supporting table (20) set gradually from the bottom to top, subtracts Shake component (21) and electrical equipment (22);It is characterized in that, the dampening assembly (21) by fixed frame (4), be set to the fixation Its vertical direction in frame (4) is equipped with flexible concrete column (6), damper (2) and cover board (1) composition of support element (5);It is described Support element (5) is the cylinder equipped with boss;
The support element (5) is upward set on same vertical axes with the damper (2), damper (2) top and the lid Plate has the gap between (1);
The fixed frame (4) is square steel tube, and the cylinder equipped with boss is band tooth round steel, the flexible concrete column (6) Flexible concrete be EPS high polymer flexible concretes, the damper (2) be lead damper;
The EPS high polymers flexible concrete is made of lower component as mass fraction:80-120 parts of cement, carboxy styrene-butadiene rubber 10-20 parts newborn, 30-40 parts of sand, 40-50 parts of water, 1-5 parts of EPS particles, 1-3 parts of UNF-5 high efficiency water reducing agents.
2. the damping device according to claim 1 for electrical equipment, which is characterized in that the EPS high polymers are flexible Concrete is made of lower component as mass fraction:100 parts of cement, 15 parts of carboxylic styrene butadiene latex, 35 parts of sand, 42 parts of water, EPS 2.8 parts of particle, 2 parts of UNF-5 high efficiency water reducing agents.
3. the damping device according to claim 1 for electrical equipment, which is characterized in that the cement is label P.O42.5 grades of portland cement.
4. the damping device according to claim 1 for electrical equipment, which is characterized in that the bulk density of the sand is 1000~1300kg/m3
5. the damping device according to claim 1 for electrical equipment, which is characterized in that the EPS particles are primary EPS particles, density are 18~20kg/m3
6. a kind of application method of any damping devices for electrical equipment of claim 1-5, which is characterized in that institute The method of stating includes the following steps:
1) flexible concrete is prepared;
2) fixed frame is horizontally placed in supporting table;
3) in being vertically arranged support element in the fixed frame, and flexible concrete is poured into a mould to the height contour with the support element;
4) damper is horizontally placed on flexible concrete column and is connect with support element;
5) high voltage electric equipment is fixed on above damper.
7. the application method of the damping device according to claim 6 for electrical equipment, which is characterized in that the method In bolt used be high-strength bolt.
CN201510565954.1A 2015-09-08 2015-09-08 A kind of damping device and its application method for electrical equipment Active CN105221650B (en)

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Publication number Priority date Publication date Assignee Title
CN110566628A (en) * 2019-09-23 2019-12-13 嵊州市军卫电机加工场 Hair buffering damping device of intelligent electromechanical device base

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CN101787752A (en) * 2010-02-08 2010-07-28 燕山大学 Shearing-extruding composite lead damper

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