CN104421364B - A kind of damping control system for electrical equipment - Google Patents

Abstract

The present invention relates to a damping control system for electrical equipment. The damping control system includes a connecting device and a shock absorbing device arranged on the connecting device. The connecting device includes an upper connecting plate, a lower connecting plate arranged in sequence. The connecting plate and the support column; the shock absorbing device includes a one-way elastic foam metal shock absorber arranged on the upper connecting plate and the lower connecting plate and a two-way elastic foam metal arranged between the lower connecting plate and the supporting column shock absorber. The system is used to improve the installation convenience of the shock absorbing device, and is beneficial to exert the shock absorbing and energy consumption performance of the shock absorbing device, and to better protect electrical equipment.

Description

A damping control system for electrical equipment

Technical field:

The invention relates to the technical field of electric facility engineering, and more particularly relates to an elastic metal foam damping control system for electrical equipment.

Background technique:

Power facilities in earthquake-prone areas not only need good process layout, but also need to have good anti-seismic/shock-absorbing performance. In the damping control system of electrical equipment, in addition to the need to develop a damping device with good performance, the installation arrangement of the damping device also has an important impact on the performance of the damping device.

In order to facilitate the popularization and application of the shock absorber, under the condition of satisfying the performance of the shock absorber itself, the shock absorber needs to be easy to install and have clear force transmission, so that the shock absorber can fully exert its performance to protect electrical equipment. For this reason, there is an urgent need to develop a shock-absorbing control system that can meet the above-mentioned requirements, and can achieve a good effect of shock resistance.

Invention content:

The purpose of the present invention is to provide a shock-absorbing control system for electrical equipment, which reduces the impact of earthquake damage on porcelain column electrical equipment in high-intensity earthquake areas, and prevents electrical equipment from being damaged when subjected to earthquakes. Maintain the safe and stable operation of the power grid.

In order to achieve the above object, the present invention adopts the following technical solutions: a shock absorbing control system for electrical equipment, the shock absorbing control system includes a fixing device and a shock absorbing device, and the fixing device includes an upper connecting plate, The lower connecting plate and the support column; the shock absorbing device includes a one-way elastic foam metal shock absorbing device arranged on the upper connecting plate and the lower connecting plate and a two-way elastic foam arranged between the lower connecting plate and the supporting column Metal shock absorber.

The invention provides a damping control system for electrical equipment, wherein the one-way elastic metal foam damping device is symmetrically arranged on the edge of the electrical equipment with the electrical equipment disposed on the upper connecting plate as the center.

The present invention provides a damping control system for electrical equipment, wherein the one-way elastic metal foam damping device of the upper connecting plate is arranged symmetrically with the one-way elastic metal foam damping device of the lower connecting plate; At least four one-way elastic metal foam damping devices are arranged on the upper connecting plate.

In another preferred damping control system for electrical equipment provided by the present invention, the one-way elastic foam metal damping device of the lower connecting plate connects the lower connecting plate, the upper connecting plate and the upper connecting plate through long bolts. The one-way elastic foam metal damping device of the connecting plate is connected, and one end of the full-length bolt is connected with the nut; each pair of one-way elastic foam metal damping device is provided with at least six full-length bolts.

Still another preferred damping control system for electrical equipment provided by the present invention, the one-way elastic metal foam damping device includes an outer casing, and the outer casing includes two upper and lower cavities, and the lower cavity A piston block is provided, and a spring is provided in the upper cavity, and the spring and the piston block are connected in series through bolts; the gap between the lower cavity, the bottom of the piston block and the bolts is filled with foam metal material;

During the movement of the one-way elastic metal foam shock absorber, the metal foam material is only compressed in one direction.

In yet another preferred damping control system for electrical equipment provided by the present invention, one end of the two-way elastic metal foam damping device is connected to the lower connecting plate through a connecting support frame, and the two-way elastic metal foam damper The other end of the vibration device is connected with the support column by bolts.

In yet another preferred shock absorption control system for electrical equipment provided by the present invention, the connection support frame is connected to the lower connection plate through bolts.

In yet another preferred damping control system for electrical equipment provided by the present invention, there are at least four bidirectional elastic metal foam damping devices.

Another preferred shock absorption control system for electrical equipment provided by the present invention, the two-way elastic metal foam shock absorber includes an outer casing, and the outer casing includes an upper cavity, a middle cavity and a lower cavity in sequence ; The middle cavity is provided with a piston block, and the upper cavity and the lower cavity are respectively provided with springs, and the piston block and the spring are connected in series by bolts; The gap is filled with foam metal material;

During the movement of the two-way elastic metal foam shock absorber, the metal foam material is compressed in both directions.

Owing to adopting above-mentioned technical scheme, the beneficial effect that the present invention obtains is:

1. The system of the present invention can greatly reduce the impact of earthquake damage on porcelain column electrical equipment in high-intensity earthquake areas, protect electrical equipment from damage when subjected to earthquakes, and maintain safe and stable operation of the power grid;

2. The shock-absorbing control system of the present invention has multiple shock-absorbing lines of defense, which enhances the safety reserve capacity of the system;

3. The damping control system of the present invention is easy to install, without changing the structural layout process, and can be directly used in electrical equipment for new construction, expansion or existing projects;

4. In the present invention, the damping control system does not start under the action of medium and small earthquakes, so as to ensure the normal working and running state. Under the action of large earthquakes, the damping control system starts to play the effect of shock absorption and energy consumption, so as to ensure that the electrical equipment is safe and not damaged;

5. The one-way or two-way elastic metal foam shock-absorbing device is used in the shock-absorbing control system. The key damping material is made of metal foam, which has higher damping performance and stronger deformation energy consumption capacity. The elastic recovery function is composed of elastic Provided by components such as disc springs or coil springs, they can be completely reset after the external force is removed, and the shock absorption effect is remarkable, which greatly improves the shock resistance of electrical equipment.

Description of drawings

Fig. 1 is the top view of damping control system of the present invention;

Fig. 2 is the sectional view with I-I or II-II direction in Fig. 1;

Among them, 1-one-way elastic foam metal shock absorber, 2-two-way elastic foam metal shock absorber, 3-connecting support rod, 4-upper connecting plate, 5-lower connecting plate, 6-long bolt, 7-screw Cap, 8-electrical equipment, 9-bracket upright.

detailed description

Below in conjunction with embodiment the invention is described in further detail.

Example 1:

As shown in Figures 1-2, the shock absorption control system for electrical equipment of the present invention includes: a fixing device and a shock absorbing device, the fixing device includes an upper connecting plate 4, a lower connecting plate 5 and a support column 9 arranged in sequence; The upper connecting plate 4 and the lower connecting plate 5 are connected, there is no gap between the two connecting plates, and the through holes of the upper and lower connecting plates correspond to each other. The shock absorbing device includes a one-way elastic foam metal shock absorber 1 arranged on the upper connecting plate 4 and a lower connecting plate 5 and a two-way elastic foam metal shock absorbing arranged between the lower connecting plate 5 and the support column 9 device 2. The top of the upper connection plate 4 is connected to the electrical equipment 8 , and the upper connection plate 4 and the electrical equipment 8 can be bolted or welded, so as to realize the rigid connection between the upper connection plate 4 and the electrical equipment 8 .

Wherein, the one-way elastic metal foam damping device 1 is arranged above the upper connecting plate 4 and below the lower connecting plate 5, and is arranged symmetrically with the contact surfaces of the two connecting plates, at least eight, the upper connecting plate 4 and the lower connecting plate 5. The lower connecting plate 5 is provided with at least four pairs of through holes in opposite positions, and at least four unidirectional elastic metal foam damping devices 1 provided on the upper connecting plate 4 are symmetrically arranged on the edge of the electrical equipment 8 centered on the electrical equipment 8 . There are at least four full-length bolts 6, and each full-length bolt 6 passes through the one-way elastic foam metal damping device 1 below the lower connecting plate 5, the lower connecting plate 5, the upper connecting plate 4, and the upper connecting plate 4 in turn. The one-way elastic metal foam shock absorber 1 is connected into one body through a nut 7 .

The lower connection plate 5 is connected to the support column 9 by welding or bolts to realize the rigid connection between the lower connection plate 6 and the support column 9; the support column 9 connected with the lower connection plate 5 is fixed on the foundation.

One end of the two-way elastic metal foam damping device 2 is connected with one end of the connecting support rod 3 by bolts to form a connecting piece, and the other end of the connecting support rod 3 is connected with the lower connecting plate 5 by welding or bolts, so The other end of the two-way elastic metal foam shock absorber 2 is connected to the support column 9 by bolts, thereby realizing a rigid connection, and the installation of the two-way elastic metal foam shock absorber 2 is completed so far.

The one-way elastic metal foam damping device includes an outer casing, a piston block, a bolt, a spring, and a metal foam material. The upper cavity, the piston block and the foam metal material are arranged in the lower cavity, and the piston block mechanically engaged with the bolt is placed on the upper part of the foam metal material, the bolt passes through the spring, and the shock absorber is in the process of one-way movement The piston block moves downward to extrude the foam metal material, and the spring also presses down. After the external force is removed, the compressed and deformed spring returns to its original state.

The two-way elastic metal foam shock absorber includes an outer casing, and the outer casing includes an upper cavity, an intermediate cavity and a lower cavity in turn; the intermediate cavity is provided with a piston block, and the upper cavity and the lower cavity Springs are respectively provided, and the piston block and the spring are connected in series through bolts; the gap between the intermediate cavity, the piston block and the bolts is filled with foam metal material;

During the movement of the two-way elastic metal foam shock absorber, the metal foam material is compressed in both directions.

Under normal operating conditions, the self-weight load of the electrical equipment 8 will be transmitted to the support column 9 through the upper connecting plate 4 and the lower connecting plate 5, and finally to the foundation; Under the action, the pretightening force of the one-way elastic metal foam shock absorber 1 and the two-way elastic metal foam shock absorber 2 is greater than the external force, and the one-way elastic metal foam shock absorber 1 and the two-way elastic metal foam shock absorber 2 have no Mutual staggering, the external performance is that there is no mutual displacement between the upper connecting plate 4 and the lower connecting plate 5, and there is no mutual displacement between the support column 9 and the lower connecting plate 5, so as to ensure the installation of the one-way elastic foam metal shock absorber 1 The system of the two-way elastic metal foam shock absorber 2 is in the elastic stage; in the case of a large external force, such as under the action of a major earthquake, the external force is greater than that of the one-way elastic foam metal shock absorber 1 or the two-way elastic metal foam shock absorber. The pre-tightening force of the shock device 2, the first line of shock-absorbing defense starts to work, that is, the mutual staggering of the two-way elastic metal foam shock-absorbing device 2 consumes a part of the earthquake input energy, which is externally manifested as between the support column 9 and the lower connecting plate 5 There is a mutual displacement, and then the remaining seismic input energy will be transmitted upwards, and the second shock-absorbing defense line starts to work, that is, the unidirectional elastic metal foam shock-absorbing device 1 shifts internally, and the external performance is the upper connecting plate 4 and the lower connecting plate 5 There is a mutual displacement between them, wherein the upper connecting plate 4 takes the outermost edge where the two connecting plates intersect as the axis of rotation, and the part of the one-way elastic metal foam shock absorber 1 far away from the axis of rotation has a large displacement and consumes more energy. The one-way elastic metal foam damping device 1 near the axis has relatively small displacement and less energy consumption, but all of them can play the role of energy dissipation and damping to reduce the earthquake response, so as to better protect the electrical equipment 8 .

From the above analysis, it can be seen that the elastic metal foam damping control system provided by the present invention can effectively reduce the seismic response through the energy dissipation effect of the damping device, thereby helping to better protect electrical equipment.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention can still be implemented Modifications or equivalent replacements to the specific embodiments, any modification or equivalent replacement that does not depart from the spirit and scope of the present invention, shall be covered by the scope of the present claims.

Claims (9)

1. for a damping control system for electrical equipment, described damping control system comprises fixing device and damping device, and described fixing device comprises the upper junction plate, lower connecting plate and the bracket upright post that set gradually; It is characterized in that: described damping device comprises the unidirectional elastic foam metal damping device be arranged on described upper junction plate and lower connecting plate and the bidirectional elastic foam metal damping device be arranged between described lower connecting plate and bracket upright post.

2. a kind of damping control system for electrical equipment as claimed in claim 1, is characterized in that: described unidirectional elastic foam metal damping device is to be arranged on the edge being symmetricly set on electrical equipment centered by the electrical equipment on described upper junction plate.

3. a kind of damping control system for electrical equipment as claimed in claim 2, is characterized in that: the unidirectional elastic foam metal damping device of described upper junction plate and the unidirectional elastic foam metal damping device of described lower connecting plate are symmetrical arranged; Described upper junction plate at least arranges four unidirectional elastic foam metal damping devices.

4. a kind of damping control system for electrical equipment as claimed in claim 3, it is characterized in that: lower connecting plate, upper junction plate are connected with the unidirectional elastic foam metal damping device of described upper junction plate by elongated bolt by the unidirectional elastic foam metal damping device of described lower connecting plate, and one end of described elongated bolt is connected with nut; Often pair of unidirectional elastic foam metal damping device is provided with 1 elongated bolt.

5. a kind of damping control system for electrical equipment as claimed in claim 4, it is characterized in that: described unidirectional elastic foam metal damping device comprises overcoat frame, described overcoat frame comprises upper and lower two cavitys, piston block is provided with in described lower chamber, be provided with spring in described upper cavity, described spring and piston block are concatenated into one by bolt; The foam-filled metallic material in space below described lower chamber, described piston block and between bolt;

Described unidirectional elastic foam metal damping device is in movement process, and described foam metal material is unidirectional pressurized only.

6. a kind of damping control system for electrical equipment as claimed in claim 1, it is characterized in that: one end of described bidirectional elastic foam metal damping device is connected with described lower connecting plate by connecting supporting frame, and the other end of described bidirectional elastic foam metal damping device is connected with described bracket upright post by bolt.

7. a kind of damping control system for electrical equipment as claimed in claim 6, is characterized in that: described connection supporting frame is connected with described lower connecting plate by bolt.

8. a kind of damping control system for electrical equipment as claimed in claim 7, is characterized in that: described bidirectional elastic foam metal damping device is at least four.

9. a kind of damping control system for electrical equipment as claimed in claim 1, is characterized in that: described bidirectional elastic foam metal damping device comprises overcoat frame, and described overcoat frame comprises upper cavity, middle chamber and lower chamber successively; Described middle chamber is provided with piston block, and described upper cavity and lower chamber are respectively equipped with spring, and described piston block and spring are concatenated into one by bolt; Described middle chamber, the foam-filled metallic material in space between piston block and bolt;

Described bidirectional elastic foam metal damping device in movement process, the two-way equal pressurized of described foam metal material.