KR102169830B1 - Substation with enhanced against earthquake design - Google Patents

Abstract

The present invention relates to a substation with enhanced seismic design, and more particularly, to a substation with an enhanced seismic design for safely protecting the substation from earthquakes by enabling stable seismic design while reducing high cost expenditure. The substation with enhanced seismic design comprises a plurality of substation facilities (100), and a base (200) installed under the substation facilities (100).

Description

Substation with enhanced against earthquake design

The present invention relates to a substation with reinforced seismic design in the field of substation technology, and more particularly, to a substation with improved seismic design to safely protect the substation from earthquakes by enabling stable seismic design while reducing high cost expenditure. will be.

In general, the structure of outdoor high-voltage substations is roughly divided into two basic types.

For example, the traditional structure of a high-level deployment substation is one type.

The conductors of these substations are fixed to the dedicated busbars of the distribution mini-room and the line portal, and the electrical equipment of these portals, their supports, and the basis of the power transformers are buried in the soil where they are located at different depths in the various structures described above. In addition, since it occupies a land area composed of relatively large assembly units, huge investment, labor consumption, material consumption and construction period are required.

Belonging to the second type is a modern, non-frame structured low-level arrangement substation.

The conductors of these substations are connected directly to electrical installations or insulators above the lower support, and the lower support is installed on an unburied foundation in most situations. At this time, the foundation of the power transformer does not need to be buried deeply, and can be installed on a stable layer of granular material.

In addition, the foundation series that does not require burial refers to a foundation composed of reinforced concrete elements that are partially laid flat, and these elements are installed on a plate and cross girder that do not need to be buried in some soil.

In the context of the same power network and power facilities, the construction cost of the second type of substation construction is very inexpensive, as it requires minimum external dimensions, minimum installation units, minimum labor consumption and material consumption, and the shortest construction period.

On the other hand, recently, high-intensity earthquakes frequently occur. In this case, the following can be found through analysis of damage.

First, the probability that the electrical equipment of the distribution system is damaged among the substations of the high-level arrangement is greater than that of the substations of the lower arrangement.

In addition, in a substation of a high-level arrangement or a substation of a low-level arrangement, a number of damages are caused by the movement of the position of the power transformer. The occurrence of this positional shift is highly related to the quality of the power transformer, and causes the bushing of the transformer and the power equipment lead of the associated high-voltage distribution system to be cut. In addition, if the bushing is cut, the oil tank of the transformer is damaged and the oil of the transformer is leaked.

The following is the result of research on the cause of the above failure of the transformer.

It is installed on the rail of the ground that does not need burial or burial so that the transformer can be moved using rollers. In most situations, the transformer falls off the rail or travels a distance of 05 meters along the rail due to an earthquake.

Rigidity “seismic” bolt fixing parts break or bend due to vibration in many situations when the transformer is fixed to a rail or directly to a buried base. At the same time, through observation, it can be seen that the position of the transformer has moved a distance of 03 meters.

Such an accident causes huge economic losses due to the damage to the power supply. Therefore, experts in many countries actively organize various new technologies to improve the seismic performance of high-voltage substations built in areas capable of high-intensity seismic activity. I'm looking for a way.

As an example, it is possible to illustrate how the transformer is securely connected to heavy and large buried ground and soil to ensure that the transformer is stable even in intense earthquakes.Since the dynamic load on the entire basic components of the transformer has increased significantly, their structure and machinery The characteristics must also be reinforced significantly, and there are disadvantages of requiring high labor consumption, material consumption and high manufacturing cost.

Therefore, it is necessary to introduce or develop an inexpensive and effective seismic design method.

Korean Patent Registration No. 10-0604175 (2006.07.18.), "High-voltage substation with improved seismic performance"

The present invention was created to solve the problems in the prior art as described above, and a substation with improved seismic design reinforced to safely protect substations from earthquakes by enabling stable seismic design while reducing high cost expenditure Its main purpose is to provide.

The present invention is a means for achieving the above object, in a substation with reinforced seismic design including a plurality of substation facilities 100 and a foundation 200 installed under the substation 100;
A fixing flange 110 is fixed around the lower end of the substation 100; A support frame 210 is fixed to the upper surface of the base 200; A vertical post 220 is vertically installed at the center of the width of the support frame 210 so that an upper end thereof passes through the fixing flange 110; An elastic member 300 is fitted on the vertical post 220 between the support frame 210 and the fixing flange 110;
The elastic member 300 is composed of a first elastic tube 310 and a second elastic tube 320, a protrusion 312 protrudes from an upper end of the first elastic tube 310, and the second elastic tube body ( An insertion groove 322 into which the protrusion 312 is inserted is formed at the lower end of the 320, and the vertical post 220 passes through the centers of the first and second telescopic tubes 310 and 320, and a fixed flange ( 110) The upper end of the vertical post 220 from the upper side is fixed with a nut (N);
A spring type buffer wire 400 is further installed at a position where it does not interfere with the elastic member 300; The manual winding buffer wire 400 includes an upper wire frame 410 fixed to the fixing flange 110, a lower wire frame 412 fixed to the support frame 210, and the upper wire frame 410 and lower A pair of winding boxes 420 fixed to each of the wire frames 412, and wires wound diagonally in a state in which each of the winding boxes 420 is wound in a manual winding and the drawn ends are arranged to cross each other Including a rod 430;
A sliding buffer unit 500 is further installed in at least a few places on the lower surface of the substation 100, the sliding buffer unit 500 has a unit base 510 fixed to the base 200, A slide groove 210 formed in a predetermined depth on one side of the unit base 510, an inverted triangular through hole 512 formed through the center of the length of the unit base 510, and the inverted triangular through hole 512 Includes a triangular flow block 520 fitted in each shape;
The lower end of the triangular flow block 520 is tangent on the block guide groove 202 formed in the base 200 via the coil spring 530, and the upper end of the triangular flow block 520 is a substation facility 100 ) Is fixed to the bottom surface of the triangular flow block 520, and both sides of the triangular flow block 520 are inclined, and sliding grooves 522 of a predetermined depth are concave and formed on the inclined surfaces of both sides of the triangular flow block 520, and the sliding A slider 540 is fitted in the groove 522, the slider 540 is configured to slide inside the unit base 510, and a fitting portion 542 fitted in the sliding groove 522 protrudes, and the A damper 550 is installed on both inner sides of the unit base 510, and the damper 550 is a pneumatic damper, and the damper rod 552 is linked to the slider 540 and is always pushed toward the triangular flow block 520 It provides a substation with reinforced seismic design, characterized in that to maintain.

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According to the present invention, it is possible to achieve a stable seismic design while reducing high cost expenditure, thereby obtaining an improved effect to safely protect a substation from earthquakes.

1 is an exemplary view showing a seismic design reinforcement structure of a substation according to the present invention.
2 is an exemplary view showing an example further equipped with a spring type buffer structure in the structure of FIG.
3 is an exemplary view showing another modified example of the seismic design reinforcement structure of the substation according to the present invention.

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

As illustrated in FIG. 1, the substation with reinforced seismic design according to the present invention includes a plurality of substation facilities 100, and by designing such a substation 100 to be seismic, it is possible to implement a substation with enhanced seismic performance. have. In this case, a power transformer may be exemplified as a substation facility.

Therefore, instead of describing the overall configuration diagram of the substation, it will be described that a substation with reinforced seismic design can be implemented by exemplarily describing the seismic structure of the substation equipment 100 constituting the substation.

The present invention includes a substation facility 100 and a base 200 installed under the substation facility 100.

At this time, the substation facility 100 is a facility constituting a substation, and the foundation 200 is a concrete block disposed in a state where a part is buried in the ground and the top surface is exposed to the ground.

In addition, a fixing flange 110 is fixed around the lower surface of the substation 100, and a support frame 210 is fixed to the upper surface of the base 200.

In addition, a vertical post 220 is vertically installed at the center of the width of the support frame 210, one end is bolted to the support frame 210 through the fixing flange 110, and the other end It is disposed to be exposed to the top while passing through the fixing flange 110.

In this case, the elastic member 300 is fitted on the vertical post 220 between the support frame 210 and the fixing flange 110.

The elastic member 300 is preferably made of synthetic rubber, and is composed of a first elastic tube 310 and a second elastic tube 320, and a protrusion 312 at the top of the first elastic tube 310 It protrudes, and an insertion groove 322 into which the protrusion 312 is inserted is formed at a lower end of the second expansion and contraction body 320, and the center of the first and second expansion and contraction bodies 310 and 320 is the vertical post 220 Is configured to penetrate.

Then, the nut (N) is fastened from the upper side of the fixing flange 110 to fix the vertical post 220.

Accordingly, the external force transmitted up and down through the ground is absorbed and buffered by the elastic deformation force of the first and second elastic tubes 310 and 320.

In addition, as shown in the example of Figure 2, in order to increase the buffering force and increase the fixing safety, a position that does not interfere with the elastic member 300, that is, in the width direction of the fixing flange 110 with the elastic member 300 interposed therebetween. A spring type buffer wire 400 is further installed at the front or rear, respectively.

This can be sufficiently implemented if the plate width of the fixing flange 110 is provided with sufficient margin.

In addition, the manual winding buffer wire 400 includes an upper wire frame 410 fixed to the fixing flange 110, a lower wire frame 412 fixed to the support frame 210, and the upper wire frame 410. And a pair of mainspring boxes 420 fixed to each of the lower wire frames 412, and each of the mainspring boxes 420 are wound in a manual winding manner, and the drawn ends are diagonally bound in a state in which they are disposed to cross each other. It includes a wire rod 430.

Thus, the elastic buffering force of the elastic member 300 is reinforced by the unique function of the mainspring pulling and pushing in the diagonal direction.

On the other hand, a sliding type buffer unit 500 of the shape as shown in FIG. 3 is further installed on the lower surface of the substation 100, not at the lower circumference of the substation 100, and is designed to be seismic resistant so as to completely protect against earthquakes.

The sliding buffer unit 500 includes a unit base 510 fixed to the base 200.

At this time, a slide groove 210 is formed in a predetermined depth on one side of the unit base 510.

In addition, an inverted triangular through hole 512 through which the triangular flow block 520 of an inverted triangle can pass through is formed in the center of the length of the unit base 510.

In addition, a triangular flow block 520 is inserted into the inverted triangular through hole 512 in an inverted triangular shape, and the lower end of the triangular flow block 520 is a block guide formed on the base 200 through the coil spring 530 It is burnt on the groove 202.

In addition, the upper end of the triangular flow block 520 is fixed to the lower end of the substation 100.

In addition, both side surfaces of the triangular flow block 520 are inclined, and a sliding groove 522 having a predetermined depth is formed on the surface.

In addition, a slider 540 is fitted into the sliding groove 522, and the slider 540 is configured to slide inside the unit base 510, and in particular, a fitting portion 542 fitted into the sliding groove 522 is provided. It is configured to protrude and smoothly slide and buffer.

In addition, a damper 550 is installed on both inner sides of the unit base 510, and the damper 550 is a pneumatic damper, and the damper rod 552 is linked to the slider 540, and thus the triangular flow block 520 Always keep pushing.

Therefore, as the triangular flow block 520 rises or falls, the two sliders 540 are in a circle and close to each other to buffer.

100: substation equipment 200: base
300: elastic member 400: manual winding buffer wire

Claims (1)

In the substation with reinforced seismic design comprising a plurality of substation facilities 100 and a foundation 200 installed under the substation 100;
A fixing flange 110 is fixed around the lower end of the substation 100; A support frame 210 is fixed to the upper surface of the base 200; A vertical post 220 is vertically installed at the center of the width of the support frame 210 so that an upper end thereof passes through the fixing flange 110; An elastic member 300 is fitted on the vertical post 220 between the support frame 210 and the fixing flange 110;
The elastic member 300 is composed of a first elastic tube 310 and a second elastic tube 320, a protrusion 312 protrudes from an upper end of the first elastic tube 310, and the second elastic tube body ( An insertion groove 322 into which the protrusion 312 is inserted is formed at the lower end of the 320, and the vertical post 220 passes through the centers of the first and second telescopic tubes 310 and 320, and a fixed flange ( 110) The upper end of the vertical post 220 from the upper side is fixed with a nut (N);
A manual winding buffer wire 400 is further installed at a position where it does not interfere with the elastic member 300; The manual winding buffer wire 400 includes an upper wire frame 410 fixed to the fixing flange 110, a lower wire frame 412 fixed to the support frame 210, and the upper wire frame 410 and lower A pair of winding boxes 420 fixed to each of the wire frames 412, and wires wound diagonally in a state in which each of the winding boxes 420 is wound in a manual winding and the drawn ends are arranged to cross each other Including a rod 430;
A sliding buffer unit 500 is further installed in at least a few places on the lower surface of the substation 100, the sliding buffer unit 500 has a unit base 510 fixed to the base 200, A slide groove 210 formed in a predetermined depth on one side of the unit base 510, an inverted triangular through hole 512 formed through the center of the length of the unit base 510, and the inverted triangular through hole 512 Includes a triangular flow block 520 fitted in each shape;
The lower end of the triangular flow block 520 is tangent on the block guide groove 202 formed in the base 200 via the coil spring 530, and the upper end of the triangular flow block 520 is a substation facility 100 ) Is fixed to the bottom surface of the triangular flow block 520, and both sides of the triangular flow block 520 are inclined, and slide grooves 522 of a predetermined depth are concave and formed on both sides of the triangular flow block 520 A slider 540 is fitted in the groove 522, the slider 540 is configured to slide inside the unit base 510, and a fitting portion 542 fitted in the sliding groove 522 protrudes, and the A damper 550 is installed on both inner sides of the unit base 510, and the damper 550 is a pneumatic damper, and the damper rod 552 is linked to the slider 540 and is always pushed toward the triangular flow block 520 Substation with reinforced seismic design, characterized in that to maintain.

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