KR102309101B1 - double forming manufacturing method of beam support for static synchronous compensator - Google Patents

Abstract

To improve structural strength and dielectric strength, the present invention provides a double forming method of a beam support for a static reactive power compensator, comprising: a first step in which a plurality of glass fibers are introduced and impregnated into a first impregnation tank containing a flame retardant resin, and a core part is first drawn while passing through a first mold part having a first predetermined cross-sectional area; a second step of continuously laminating a mat comprising a filler comprising glass fibers, calcium carbonate, and aluminum hydroxide along an outer part of the core part; and a third step of manufacturing a beam support by secondary drawing, so a cross-sectional profile corresponds to an inner surface profile of a second mold part while the core part, in which the mat is laminated on the outer part, continuously passes through the second mold part having a second predetermined opening cross-sectional area, and an insulation reinforcing layer in which the mat is cured is laminated in multiple layers on the outer surface of the core part.

Description

Double forming manufacturing method of beam support for static synchronous compensator

The present invention relates to a method for double forming a beam support for a stationary reactive power compensator, and more particularly, to a method for double forming a beam support for a stationary reactive power compensator with improved structural strength and dielectric strength.

In general, STATCOM (Static Synchronous Compensator) is a facility that minimizes power loss when transmitting and distributing electricity and increases voltage stability, and is also called a static reactive power compensator.

The STATCOM refers to a device that enables stable power supply by maintaining a constant output voltage even when the amount of power generation changes rapidly depending on weather conditions when generating new and renewable energy such as wind power or solar power. At this time, excessive voltage drop due to transmission line failure or power plant dropout may cause a wide-area blackout, and STATCOM serves to maintain the voltage at a certain level by supplying reactive power required to the power system.

On the other hand, Figure 1 is an exemplary view showing a beam support provided in the conventional support device for a static reactive power compensator, Figure 2 is an exemplary view showing the state of use of the conventional beam support.

Here, the support device 1 for the stationary reactive power compensator is provided with a plurality of layers stacked in the vertical direction to prevent an electrical collision by separating the stationary reactive power compensator individually, and is used as a structure to withstand the STATCOM load of about 2 tons per layer. It is a device that becomes For example, six sets of support devices for one stationary reactive power compensator supporting a load of about 2 tons are provided in the vertical direction and can be used as one device supporting a load of 12 tons in total.

As shown in Figures 1 to 2, the beam support (2) provided in the support device (1) for the conventional stationary reactive power compensator is provided in an 'I' cross-sectional shape and extends in the longitudinal direction, the static reactive power A compensator (not shown) is seated and supported on the upper surface of each of the beam supports 2 . In addition, the beam support 2 may be made of a material that simultaneously satisfies the condition of having electrical insulation while enduring the load of a stationary reactive power compensator (not shown).

In addition, the beam support (2) is extended in the longitudinal direction and spaced apart at uniform intervals along the width direction, and both ends of the beam support (2) are connected to a frame ( not shown) is connected.

However, the conventional beam support 2 is provided in an 'I'-shaped cross-sectional shape extending along the longitudinal direction so that each stationary reactive power compensator (not shown) is seated and supported on the upper surface of each beam support 2 . As the longitudinal center side is concavely deformed downward by the load generated during the time, a crack (k) is generated, which has a serious problem in that durability is lowered.

Korean Patent Publication No. 10-2020-0065871

In order to solve the above problems, an object of the present invention is to provide a double forming method of a beam support for a stationary reactive power compensator in which structural strength and dielectric strength are improved.

In order to solve the above problems, the present invention provides a first method in which a plurality of glass fibers are introduced into a first impregnation tank containing a flame retardant resin and impregnated, and the core part is first drawn while passing through the first mold part having a predetermined first opening cross-sectional area. Step 1; a second step of continuously stacking a mat comprising a filler comprising glass fibers, calcium carbonate, and aluminum hydroxide along the outer portion of the core part; and a cross-sectional profile corresponding to an inner surface profile of the second mold portion while the core portion, in which the mat is laminated on the outer portion, continuously passes through a second mold portion having a predetermined second opening cross-sectional area, but the mat is cured on the outer surface of the core portion It provides a double molding method of a beam support for a stationary reactive power compensator comprising a third step of manufacturing a beam support by secondary pultrusion forming so that the insulating reinforcing layer is laminated in multiple layers.

On the other hand, the present invention comprises a core portion pultruded along the longitudinal direction as a fiber-reinforced plastic comprising a glass fiber and a flame-retardant resin; And a stationary reactive power compensator comprising a mat consisting of a filler comprising glass fibers, calcium carbonate and aluminum hydroxide along the outer edge of the core part is continuously laminated in multiple layers, pultruded, and cured. provides

Through the above solution means, the present invention provides the following effects.

First, a core part pultruded including glass fiber and flame-retardant resin on the inside of the beam support for a stationary reactive power compensator, and continuously multi-layered along the outer part of the core part are pultruded and hardened to notch or crack for concentrated load In order to minimize the occurrence, the structural strength can be remarkably reinforced because the insulating reinforcing layer is double-molded.

Second, along the outer edge of the core part, a mat composed of glass fibers and a filler composed of calcium carbonate and aluminum hydroxide is continuously laminated in multiple layers and pultruded to form a smooth surface by the hardened insulating reinforcing layer, so that the surface roughness and insulation The strength can be significantly improved.

Third, the mat that is laminated and cured in multiple layers along the outer part of the core part contains 60 to 70% by weight of glass fiber, 20 to 35% by weight of resin, and 5 to 10% by weight of fillers including calcium carbonate and aluminum hydroxide. By including the composition, the dielectric strength of the insulating reinforcing layer formed by curing is improved, and the reinforcing strength of the product can be significantly increased.

1 is an exemplary view showing a beam support provided in a support device for a conventional static reactive power compensator.
Figure 2 is an exemplary view showing the state of use of the conventional beam support.
Figure 3 is a flow chart showing a double forming method of a beam support for a stationary reactive power compensator according to an embodiment of the present invention.
Figure 4 is an exemplary view showing a manufacturing system of a beam support for a stationary reactive power compensator according to an embodiment of the present invention.
5 is a perspective view showing a beam support for a stationary reactive power compensator according to an embodiment of the present invention.
6 is an exemplary view showing a beam support for a stationary reactive power compensator according to an embodiment of the present invention.
7 is a perspective view showing a support device for a stationary reactive power compensator according to an embodiment of the present invention.
8 is a front view showing a support device for a stationary reactive power compensator according to an embodiment of the present invention.
Figure 9 is a front view showing the laminated frame portion in the support device for a stationary reactive power compensator according to an embodiment of the present invention.

Hereinafter, a beam support for a stationary reactive power compensator and a double forming method thereof according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 is a flow chart showing a double forming method of a beam support for a stationary reactive power compensator according to an embodiment of the present invention, and FIG. 4 is a manufacturing system of a beam support for a stationary reactive power compensator according to an embodiment of the present invention. 5 is a perspective view showing a beam support for a stationary reactive power compensator according to an embodiment of the present invention, and FIG. 6 is a beam support for a stationary reactive power compensation device according to an embodiment of the present invention. 7 is a perspective view showing a support device for a stationary reactive power compensator according to an embodiment of the present invention, and FIG. 8 is a front view showing a support device for a stationary reactive power compensation device according to an embodiment of the present invention 9 is a front view showing a laminated frame portion in the support device for a stationary reactive power compensator according to an embodiment of the present invention.

Here, the support device 1000 for the stationary reactive power compensator is provided with a plurality of layers stacked in the vertical direction to separate the STATCOM (stationary reactive power compensator) individually to prevent an electrical collision, and the STATCOM load reaching about 2 tons per layer It is a device used as a structure to withstand For example, six sets of support devices 1000 for one stationary reactive power compensator supporting a load of about 2 tons are provided in the vertical direction and can be used as one device supporting a total load of 12 tons. At this time, it is preferable that the support device 1000 for the stationary reactive power compensator includes a beam support 100 for a stationary reactive power compensator and a laminated frame unit 200 .

3 to 9, in the double molding method of the beam support for a stationary reactive power compensator according to an embodiment of the present invention, a plurality of glass fibers are impregnated with a flame retardant resin and passed through the first mold part as a core part. Tea drawing (s10), the mat is laminated in multiple layers along the outer part of the core part (s20), and the mat is laminated in multiple layers on the outer surface of the core part while the core part in which the mat is laminated on the outer part passes through the second mold part so that the mat is laminated in multiple layers and a series of steps of secondary drawing (s30).

3 to 4, the manufacturing system 2000 of the beam support for the stationary reactive power compensator applied to the double forming method of the beam support for the stationary reactive power compensator is a glass fiber supply unit 2010, the first impregnation It is preferable to include the tank 2020, the first mold part 2030, the second impregnation tank 2040, and the second mold part 2050.

In this configuration, it is preferable that the glass fiber supply unit 2010 is on the front side and is continuously arranged up to the second mold unit 2050 . That is, the glass fiber supply unit 2010 and the inlet side of the first impregnation tank 2020 are arranged adjacent to each other, and the discharge side of the first impregnation tank 2020 is the inlet side of the first mold part 2030 . placed adjacent to In addition, the discharge side of the first mold part 2030 is disposed adjacent to the inlet side of the second impregnation tank 2040 , and the discharge side of the second impregnation tank 2040 and the second mold part 2050 are disposed. The inlet side of the is arranged adjacent to each other.

That is, a series of processes for manufacturing the beam support 100 for the stationary reactive power compensator is made substantially continuously along one line. Through this, the inconvenience of transporting the intermediate product formed in each step to the device performing the next step is eliminated, and thus manufacturing convenience can be remarkably improved. In addition, since the manufacturing space for manufacturing the beam support 100 for the stationary reactive power compensator is minimized, space utilization can be significantly improved.

On the other hand, a plurality of glass fibers 101 are introduced into the first impregnation tank 2020 in which the flame retardant resin is accommodated and impregnated. Then, the plurality of glass fibers 101a impregnated with the flame retardant resin pass through the first mold portion 2030 having a predetermined first cross-sectional area. Accordingly, the cross-sectional profile corresponds to the inner surface profile of the first mold part 2030 and is first drawn into the core part 100A into which the plurality of glass fibers 101 are inserted (s10).

Here, the glass fiber 101 is an intermediate form between sliver and yarn, and it is preferable to understand it as a soft string thinner than sliver and thicker than yarn according to the spinning process. In this case, the glass fiber 101 may be provided as one of a variety of known fiber materials used for reinforcing plastic products, such as glass fiber, carbon fiber, aramid fiber, and the like. A plurality of such glass fibers 101 may be prepared in the glass fiber supply unit 2010 provided on the front side of the first impregnation tank 2020 while being wound on a bobbin.

In addition, the shape of the core part 100A may be drawn into a shape corresponding to the connection support part 110 , the load support part 120 and the STATCOM seating part 130 integrally connected to each other as shown in FIG. 6 . Depending on the 'I' cross-sectional shape may be drawn.

On the other hand, the plurality of glass fibers 101 are introduced into the inlet portion opened in front of the first impregnation tank 2020 while being unwound from each bobbin of the glass fiber supply unit 2010 . Then, after the flame-retardant resin accommodated in the first impregnation tank 2020 is impregnated, it is introduced into the first mold part 2030 disposed at the rear side of the first impregnation tank 2020 .

Here, the plurality of glass fibers 101 are preferably introduced into the first impregnation tank 2020 in a state in which they are aligned to be disposed adjacent to each other. Therefore, the flame-retardant resin is applied to the outer surface of the plurality of glass fibers 101 to a predetermined thickness and laminated, and the content of the glass fibers increases toward the center of the manufactured core portion 100A.

On the other hand, it is preferable that a hollow first through-portion having a predetermined first cross-sectional area is formed in the first mold part 2030 . That is, when the first mold portion 2030 has the first cross-sectional area of the first opening, it is preferable to understand that the first penetrating portion is substantially penetrated to have the first cross-sectional area of the first opening. In addition, the inner profile of the first mold portion 2030 is preferably understood as the inner profile of the first through portion.

At this time, it is preferable that the cross-sectional shape of the first through-portion is set to be greater than or equal to the width and length of the beam support 100 for a static reactive power compensator that is finally manufactured. In addition, in the step-by-step drawing process, which will be described later, the opening cross-sectional area of the sequentially arranged mold portions is gradually set smaller. Accordingly, since the beam support 100 for the stationary reactive power compensator is drawn out while being compressed at a high density, mechanical strength and physical properties can be remarkably improved.

Furthermore, it is preferable that the first through portion is formed so that the inlet side through which the plurality of glass fibers 101a impregnated with the flame retardant resin is introduced has a larger open cross-sectional area than the outlet side through which the other side is penetrated. Accordingly, the plurality of glass fibers 101a impregnated with the flame-retardant resin may be easily introduced into the first through-portion. In addition, it may be gradually narrowed toward the discharge side of the first through-portion. Through this, the plurality of glass fibers 101a impregnated with the flame retardant resin may be drawn while being gradually compressed into the core portion 100A having a uniform thickness and cross-sectional shape while passing through the first through portion.

Here, the flame retardant resin preferably includes a base resin selected from the group consisting of polyester resin, vinyl ester resin, epoxy resin, and mixtures thereof. In addition, a phosphorus (P)-based flame retardant may be included. In this case, the phosphorus-based flame retardant is preferably selected from the group consisting of a phosphate compound, a phosphonate compound, a phosphinate compound, a phosphazene compound, and mixtures thereof. For example, as the phosphate compound, triphenyl phosphate, trixylyl phosphate, etc. may be used alone or in combination. In addition, as the phosphate compound, aluminum methyl methylphosphonate, cyclic phosphonate, or the like may be used alone or in combination. In addition, as the phosphinate compound, aluminum diethyl phosphinate, aluminum methylethylphosphinate, etc. may be used alone or in combination. In addition, hexaphenoxytricyclophosphazene may be used as the phosphagen compound.

Therefore, the beam support 100 for the stationary reactive power compensator 100 has the mechanical strength of the core part 100A itself in which the flame retardant resin is cured and the support strength reinforced by inserting the plurality of the glass fibers 101 therein. Through this, the load of the static reactive power compensator can be stably reinforced and supported. At the same time, since the phosphorus-based flame retardant is also mixed in the core portion 100A, a predetermined flame retardant performance is imparted. Therefore, even if a fire occurs, the propagation speed of the flame through the beam support 100 for the stationary reactive power compensator is reduced and the emission of harmful gas generated during combustion is minimized, so that safety in case of fire is improved and damage to life and property is reduced. can be significantly reduced.

On the other hand, along the outer portion of the core portion (100A), glass fiber, and a mat (140a) comprising a filler comprising calcium carbonate and aluminum hydroxide is continuously laminated in multiple layers (s20).

In detail, the mat 140a is wound a plurality of times along the circumferential direction on the entire outer surface of the core part 100A, and is laminated and cured in multiple layers in the outer direction of the core part 100A. It may be sequentially wound and laminated from the front end to the rear end to be cured.

Here, it is preferable that the mat 140a contains 60 to 70% by weight of glass fibers, 20 to 35% by weight of resin, and 5 to 10% by weight of fillers including calcium carbonate and aluminum hydroxide.

Then, the cross-sectional profile of the second mold part 2050 is formed while the core part 100A in which the mat 140a is laminated on the outer part continuously passes through the second mold part 2050 having a predetermined second opening cross-sectional area. ), but secondary pultrusion molding is performed so that the insulating reinforcing layer 140 in which the mat 140a is cured is laminated in multiple layers on the outer surface of the core part 100A (s30).

Through this, the cross-sectional profile corresponds to the inner surface profile of the second mold part 2050 , but the mat 140a is cured on the outer surface of the core part 100A and the second is drawn so that it is laminated with the insulation reinforcing layer 140 .

At this time, when the core part 100A in which the mat 140a is laminated on the outer part passes through the second mold part 2050, the mat 140a is press-attached to the outer surface of the core part 100A, Preferably, the second cross-sectional area of the opening is smaller than the cross-sectional area of the first opening.

In detail, the second mold portion 2050 is formed with a hollow second through-portion having the predetermined second opening cross-sectional area. Here, it is preferable that the second through portion is formed to have a larger opening cross-sectional area than the discharge side through which the inlet side through which the core portion 100A, in which the mat 140a is laminated on the outer portion, is introduced, is penetrated to the other side.

Through this, while the core portion 100A, in which the mat 140a is stacked on the outer portion, is stably drawn into the inside of the second through portion, the inner profile of the second through portion may be reduced while being press-drawn. In this case, the lateral width and the vertical width of the second through portion may be formed to be less than the lateral width and the vertical width of the first through portion. Accordingly, when the mat 140a is inserted into the second through-portion in a state in which the mat 140a is laminated on the outer part of the core part 100A, the stacked on the core part 100A and the outer surface corresponding to the transport direction Mats 140a are drawn to be compression attached to each other.

For example, if the thickness of the plurality of glass rovings 101a impregnated with the flame retardant resin while passing through the first impregnation tank 2020 is 54 mm, the core part drawn while passing through the first mold part 2030 ( 100A) can be compressed to a thickness of 52 mm. In addition, when the core part 100A in which the mat 140a is laminated on the outer part while passing through the second impregnation tank 2040 is drawn while passing through the second mold part 2050, the final workpiece is the stationary mold The thickness of the beam support 100 for the reactive power compensator may be compressed to 50 mm. In this case, the above-described thickness is preferably understood as an example, and the thickness is not limited to the above-described example.

Accordingly, the insulating reinforcing layer 140 formed by curing the mat 140a on the outer surface of the core part 100A is firmly attached to the core part 100A by a pressing force. Therefore, after manufacturing the beam support 100 for the stationary reactive power compensator, it is possible to prevent the insulation reinforcement layer 140 from being separated or peeled from the core part 100A. Through this, it is possible to receive a high-quality static reactive power compensator beam support 100 that simultaneously satisfies structural reinforcement strength, durability and insulation performance.

Furthermore, while the beam support 100 for the stationary reactive power compensator is pulled out to be compressed, the gas or pores remaining between the core part 100A and the insulation reinforcement layer 140 may be removed. Through this, the beam support 100 for the stationary reactive power compensator is densely agglomerated to provide a product with excellent support strength that can reinforce the load bearing capacity of the structure due to external shock or vibration while being thin in thickness.

In this case, the insulation reinforcing layer 140 may be stacked in multiple layers of at least two layers or more. To this end, at least two or more impregnation baths and mold parts are alternately arranged on the rear side of the second mold part 2050 in the same order as the third impregnation tank, the third mold part, the fourth impregnation tank, and the fourth mold part. It may also be provided as a dog. Here, the first mold part 2030 from which the core part 100A is drawn is formed to have the first opening cross-sectional area, and is disposed at the end of the manufacturing system 2000 of the beam support for the stationary reactive power compensator. The final mold part to be formed may be formed to have the second opening cross-sectional area. In addition, each of the mold parts disposed between the first mold part 2030 and the final mold part may be formed with each through part having an opening sectional area smaller than the first opening sectional area and larger than the second opening sectional area. In this case, each of the through portions may be formed to have the same cross-sectional area of opening within the above-described range, or may be formed to have a cross-sectional area of an opening that gradually decreases toward the final mold portion.

Through this, the insulating performance may be further improved while the insulating reinforcing layer 140 is stacked on the outer surface of the core part 100A in multiple layers. In addition, since the insulation reinforcing layer 140 can be fused at a high density while being multi-stacked and press-drawn, the insulation performance is improved while durability is improved, so that the problem of cracks can be further improved.

Accordingly, the core part 100A, in which the mat 140a is laminated on the outer part, continuously passes through the second mold part 2050 having a predetermined second opening cross-sectional area on the outer surface of the core part 100A. The mat 140a is secondary pultrusion-molded so that the cured insulation reinforcing layer 140 is laminated in multiple layers, so that the insulation reinforcing layer 140 is fused at a high density, so that the insulation performance is improved while durability is increased, thereby preventing cracks from occurring have.

In addition, it is preferable that the second mold part 2050 is provided with a heating part that applies heat in a preset temperature range so that the mat 140a is laminated on the outer surface of the core part 100A to be main-cured.

In detail, the plurality of glass fibers 101 impregnated with the flame retardant resin are introduced into the second impregnation tank 2040 in a pre-cured state while passing through the first mold part 2030 . Here, it is preferable that the pre-curing is understood as a semi-cured state in which the flame-retardant resin is not completely cured.

In addition, when the mat 140a is laminated and passed through the second mold part 2050 in a state of being pre-cured into the core part 100A, the mat 140a is formed on the outer part of the core part 100A. closely laminated. At this time, as heat in a preset temperature range is applied to the second mold part 2050 through the heating part, the mat 140a and the core part 100A are attached to each other and main curing, that is, completely cured. have.

In this case, the preset temperature range applied to the second mold part 2050 through the heating part may be formed in a range of 100 to 200°C. Through this, the beam support 100 for the stationary reactive power compensator drawn while passing through the second mold part 2050 is substantially hardened and fixed in a cross-sectional shape corresponding to the second opening cross-sectional area. It may be drawn out toward the discharge side of the second mold part 2050 .

Therefore, the deflection, distortion, etc. due to the load in the process of drawing out the beam support 100 for the stationary reactive power compensator is minimized, and the quality of the drawn product can be remarkably improved.

At this time, it is preferable that the core part 100A is pre-cured in a room temperature environment, but in some cases, a second preset to control the pre-curing state of the core part 100A also in the first mold part 2030 . An auxiliary heating unit for applying heat in a temperature range may be provided.

Here, the second temperature range may be formed in a range lower than the temperature applied to the second mold part 2050 . Accordingly, it is possible to prevent the core part 100A from being completely cured while passing through the first mold part 2030 . Through this, it is possible to attach without a boundary between the core portion 100A and the mat 140a, so that the durability of the beam support 100 for the stationary reactive power compensator 100 can be significantly improved.

Accordingly, the beam support 100 for the stationary reactive power compensator drawn while passing through the second mold unit 2050 may be pre-cut to a preset standard and transported to each site.

On the other hand, it is preferable that the beam support 100 for a stationary reactive power compensator according to an embodiment of the present invention is provided including a connection support 110 , a load support 120 , and a STATCOM seat 130 .

Here, the beam support 100 for the stationary reactive power compensator is a pair of lower horizontal frames extending along any one of the lateral and longitudinal directions provided in the support device 1000 for the stationary reactive power compensator 1000 ). including but spaced apart from each other The pair of laminated frame units 200 are connected across.

In detail, the connection support 110 is connected at both ends to the upper portion of each of the lower horizontal frames 210, extends in the vertical direction of the lower horizontal frame 210, is spaced apart from each other at uniform intervals, and is made of a fiber-reinforced plastic material. It is preferable to be provided by pultrusion molding.

At this time, the lower horizontal frame 210 extends along any one of the transverse direction and the longitudinal direction, and the connection support unit 110 is provided in plurality, so that the lower horizontal frame 210 is at a uniform distance from each other along the longitudinal direction of the lower horizontal frame 210 . It is preferable to be spaced apart.

In addition, the connection support 110 is provided in a flat plate shape having a predetermined width and thickness, so that the lower surface can be formed flat, and the lower surfaces of both ends are bolted to the upper surface of the lower horizontal frame 210 through a method such as bolting. can be connected

In addition, it is preferable that the lower fastening hole 111 is formed through a plurality of places in the vertical direction in the connection support unit 110 . At this time, it is preferable that the lower fastening holes 111 are spaced apart from each other in the longitudinal direction of the connection support 110 and are formed in a plurality of places.

On the other hand, the load support part 120 is provided by being pultruded integrally with the connection support part 110, and it is preferable to be provided so as to extend obliquely to both sides in the width direction from the center in the width direction of the connection support part 110 to the upper side. .

In detail, it is preferable that the lower end of the load support part 120 includes a vertical extension part 123 integrally connected to the upper surface in the width direction of the connection support part 110 .

And, the load support part 120 is branched from the lower part connected to the connection support part 110, that is, from the upper end of the vertical extension part 123 so that the load of the stationary reactive power compensating device is distributed, toward both sides in the width direction toward the upper side. It is preferable to include an inclined support part 121 that extends obliquely and each upper end is connected to the lower surface of the STATCOM seating part 130 .

At this time, the lower part connected to the connection support part 110 is preferably understood as a concept encompassing the upper end of the vertical extension part 123 and the central upper surface of the connection support part 110 in the width direction, and one of the present invention In the embodiment, the case where the lower part connected to the connection support part 110 is the upper end of the vertical extension part 123 is shown and described as an example.

In addition, the inclined support part 121 has a predetermined thickness, and extends obliquely from the top of the vertical extension part 123 toward the upper side in the width direction. It is preferable to include a first inclined support portion (121a) connected to.

In addition, the inclined support part 122 has a predetermined thickness corresponding to the first inclined support part 121a, and extends from the upper end of the vertical extension part 123 toward the upper side to be inclined to the other side in the width direction, and the upper end is the switch. It is preferable to include a second inclined support portion (121b) connected to the lower surface of the other side in the width direction of the tacom seating portion (130).

At this time, a first angle formed between the outer surface of the first inclined support part 121a and the lower surface of the STATCOM seat 130 , and the outer surface of the second inclined support part 121b and the STATCOM seat 130 ) It is preferable that the second angle formed by the lower surface is formed as an obtuse angle in the range of 91 to 179° exceeding a right angle, respectively. That is, it is preferable that the first inclined support part 121a and the second inclined support part 121b extend upward to have a corresponding inclination angle with respect to the upper surface of the connecting support part 110, respectively, in the width direction. do.

For example, the first angle and the second angle may be set as obtuse angles in the range of 91° to 179°. At this time, when the first angle and the second angle are 90° or less or 180° or more, the static type reactive power compensator is cracked from the surface of the beam support 100 for the stationary reactive power compensator 100 by the load of the stationary type reactive power compensator. There is a possibility that this may occur. Accordingly, by setting the first angle and the second angle to be obtuse angles in the range of 91 to 179°, it is possible to provide a strong support strength to provide stacking safety when stacking the stationary reactive power compensator.

In addition, it is preferable that the hollow part 122 is extended along the longitudinal direction between the upper inner side of the inclined support part 121 and the central lower surface of the STATCOM seating part 130 . Here, the hollow portion 122 may be formed in an inverted triangular cross-section, it extends along the longitudinal direction of the STATCOM receiving portion 130, and it is preferable that front and rear ends in the longitudinal direction are opened.

Accordingly, the hollow part 122 is formed along the longitudinal direction between the upper inner side of the inclined support part 121 and the central lower surface of the STATCOM seating part 130 so that the structural strength through the inclined support part 121 is increased. While being reinforced, material costs can be reduced and economic feasibility can be improved.

Through this, branched from the lower portion connected to the connection support unit 110 drawn from a fiber-reinforced plastic material and extended to be inclined on both sides in the width direction toward the upper side, each upper end connected to the lower surface of the STATCOM receiving unit 130. The load support part 120 including the inclined support part 121 is formed, and the support strength for the load of the stationary reactive power compensator that is seated on the STATCOM seating part 130 and acts downward can be significantly improved. have. In addition, as the support strength with respect to the load is improved, the bending deformation of the beam support 100 is minimized and the occurrence of cracks can be prevented.

Accordingly, the angle formed between the inclined support part 121 and the lower surface of the STATCOM seating part 130, which extend obliquely to both sides toward the upper side and whose upper end is connected to the lower surface of the STATCOM seating part 130, is obtuse. The support strength for the load of the stationary reactive power compensator seated on the tacom seating part 130 is remarkably improved, and the stacking stability can be remarkably improved by fundamentally preventing the occurrence of cracks.

In addition, the load support part 120 has a lower end integrally connected to the central upper surface in the width direction of the connection support part 110 , and the upper end further includes a vertical extension part integrally connected to the lower end of the inclined support part 121 , the stationary type The support strength for the load of the reactive power compensator can be further improved.

And, the STATCOM seating part 130 is integrally pultruded with the load support part 120 and extends in the vertical direction of the lower horizontal frame 210, and the lower surface is connected to the upper end of the load support part 120, , it is preferable that the upper surface is formed flat so that the stationary reactive power compensator is seated on the upper side. Here, the STATCOM seating part 130 may be provided to correspond to the vertical thickness and width of the load support part 120 .

On the other hand, the beam support 100 for the stationary reactive power compensator is formed through the STATCOM seat 130 and the inclined support part 121 at the same time in the vertical direction, so that the upper end of the STATCOM seat 130 is above the upper side. It is preferable that an extended fastening hole 124 in which a screw thread is formed in the inner periphery of the lower end communicates with the inclined outer surface of the inclined support part 121 is formed.

In addition, it is preferable that the extended fastening holes 124 are spaced apart from each other along the longitudinal direction of the STATCOM seating part 130 and are formed in a plurality of places. At this time, in a state in which the stationary reactive power compensating device is seated on the upper surface of the STATCOM seating part 130, the hole formed in the lower part of the stationary reactive power compensating device and the extended fastening hole 124 are aligned, and then the bolt is fastened. A stationary reactive power compensator may be fixed to the STATCOM seat 130 .

Accordingly, the extended fastening hole 124 to which the stationary reactive power compensator is screwed and fixed is formed through the STATCOM seat 130 and the inclined support unit 121 at the same time in the vertical direction so that the upper end is the switch It communicates with the upper side of the Taecom seating part 130 and the lower end communicates with the inclined outer surface of the inclined support part 121 to increase the screw fastening depth, so the reinforcement force is increased. can be improved.

On the other hand, the beam support 100 for the stationary reactive power compensator comprises a fiber-reinforced plastic comprising glass fiber and a flame-retardant resin, and a core part 100A pultruded along the longitudinal direction, and the core part 100A. It is preferable that the mat 140a comprising a filler comprising glass fiber, calcium carbonate, and aluminum hydroxide is continuously laminated along the outer portion, pultruded, and cured to include an insulating reinforcing layer 140 .

At this time, referring to FIG. 6 , in one embodiment of the present invention, the core part 100A is a continuation of the connection support part 110 , the load support part 120 and the STATCOM seating part 130 integrally formed with each other. means an internal region, and the insulating reinforcing layer 140 means a continuous outer region of the connection support part 110 , the load support part 120 , and the STATCOM seating part 130 integrally formed with each other.

In addition, the core part 100A may be pultruded as a fiber-reinforced plastic material, and air bubbles may be formed therein, and the content of the glass fiber material may be set to increase toward the center of the core part 100A.

In this case, the core part 100A may include 60 to 80% by weight of glass fiber and 20 to 40% by weight of a flame retardant resin.

In addition, the insulation reinforcing layer 140 may be stacked on the entire outer surface of the core part 100A in multiple layers. For example, the insulation reinforcing layer 140 may be stacked in three layers and may have a total thickness of 1.5 to 2.5 mm.

Here, the insulation reinforcing layer 140 smoothes the surface of the beam support 100 for the stationary reactive power compensator to increase the surface roughness and increase electrical insulation to improve the dielectric strength and at the same time can be generated by an external force. It is preferably formed to minimize the occurrence of cracks. The insulating reinforcing layer 140 may be formed by curing the mat.

In detail, the mat 140a is wound a plurality of times along the circumferential direction on the entire outer surface of the core part 100A, and is laminated and cured in multiple layers in the outer direction of the core part 100A. It may be sequentially wound and laminated from the front end to the rear end to be cured.

Here, it is preferable that the mat 140a contains 60 to 70% by weight of glass fibers, 20 to 35% by weight of resin, and 5 to 10% by weight of fillers including calcium carbonate and aluminum hydroxide.

At this time, the mat 140a includes 5 to 10% by weight of a filler including calcium carbonate and aluminum hydroxide with respect to the total weight%, and when the weight% of the filler is less than 5% with respect to the total weight%, the insulation reinforcing layer The surface roughness of (140) is reduced, the surface becomes rough, and there is a fear that the insulation may be deteriorated. On the other hand, when the weight % of the filler exceeds 10% with respect to the total weight %, the reinforcing strength of the insulating reinforcing layer 140 is lowered, and there is a risk of cracking due to an external force.

Accordingly, the mat 140a is composed of 60 to 70% by weight of glass fiber, 20 to 35% by weight of resin, and 5 to 10% by weight of fillers including calcium carbonate and aluminum hydroxide, whereby the core part (100A) The dielectric strength of the insulating reinforcing layer 140 formed by curing along the outer portion is improved, and at the same time, the reinforcing strength of the product can be significantly increased.

Through this, the beam support 100 for the stationary reactive power compensator 100 includes glass fibers, calcium carbonate and aluminum hydroxide along the outer portion of the core part 100A pultruded including glass fibers and flame retardant resin. Since the mat 140a composed of a filler is continuously laminated in multiple layers, pultruded, and the cured insulation reinforcing layer 140 is formed, structural strength is reinforced and a smooth surface is formed, so that the surface roughness and dielectric strength can be significantly improved. have.

That is, the core part 100A, which is pultruded including glass fiber and flame-retardant resin in the beam support 100 for the stationary reactive power compensator 100, and the core part 100A are continuously stacked in multiple layers along the outer part of the core part 100A. Since the insulating reinforcing layer 140 is molded and hardened to minimize the occurrence of notch or crack for concentrated load, the structural strength can be remarkably reinforced.

In addition, along the outer portion of the core portion 100A, a mat 140a comprising a filler comprising glass fiber, calcium carbonate and aluminum hydroxide is continuously laminated in multiple layers, pultruded, and hardened the insulation reinforcing layer 140 ) to form a smooth surface, so the surface roughness and dielectric strength can be remarkably improved.

Meanwhile, the laminated frame unit 200 may include a lower horizontal frame 210 , a vertical insulating frame 220 , and an upper horizontal frame 230 . Here, the lower horizontal frame 210 , the vertical insulating frame 220 , and the upper horizontal frame 230 are made of a fiber-reinforced plastic material and are respectively pultruded and provided to be coupled to each other.

Here, the lower horizontal frame 210 extends long along any one of the lateral and longitudinal directions, and is provided as a pair and between each of the lower horizontal frames 210, the beam support 100 for the stationary reactive power compensator. ) is preferably connected. The lower horizontal frame 210 is preferably pultruded from a fiber-reinforced plastic material.

At this time, in a state in which both ends of the beam support 110 for each stationary reactive power compensator are seated on the upper surface of the lower horizontal frame 210, they may be coupled to each other through a method such as bolting. For example, in a state in which the lower fastening hole 111 is aligned with the hole formed in the lower horizontal frame 210 , bolts may be inserted and coupled to each other.

In addition, it is preferable that both ends of the lower horizontal frame 210 have lower coupling holes 211 having threads formed on the inner periphery to penetrate in the vertical direction, respectively.

In addition, both ends of the upper horizontal frame 230 are connected to the upper end of each of the vertical insulating frames 220 , and it is preferable that they extend in parallel in a direction corresponding to the lower horizontal frame 210 . The upper horizontal frame 230 is pultruded and provided with a fiber-reinforced plastic material, and is preferably provided corresponding to the length of the lower horizontal frame 210 .

In addition, it is preferable that both ends of the upper horizontal frame 230 have upper coupling holes 231 arranged in a vertically spaced apart state to the lower coupling holes 211 and having threads formed therein in the vertical direction respectively. .

In addition, it is preferable that the vertical insulating frame 220 is provided as a pair and is arranged to extend in the vertical direction from both ends of each of the lower horizontal frames 210 . At this time, it is preferable that the upper end of the vertical insulating frame 220 is connected to both ends of the upper horizontal frame 230 , and the lower end is connected to both ends of the lower horizontal frame 210 .

Here, the vertical insulating frame 220 is provided by being pultruded from a fiber-reinforced plastic material, and coupling screws 221a and 221b are respectively formed on the outer periphery of both ends of the vertical insulating frame 220, and each of the coupling screw threads 221a , 221b) is preferably fastened to the lower coupling hole 211 and the upper coupling hole 231, respectively.

On the other hand, the lower horizontal frame 210, the vertical insulating frame 220, and the upper horizontal frame 230 are assembled and the laminated frame part 200 assembled in a 'ㅁ' shape is provided with a plurality of vertical directions. It can be assembled in multiple stages. Here, when the stacked frame unit 200 is provided with a plurality of layers stacked in the vertical direction, each of the stationary reactive power compensating devices may be seated on the upper portion of the beam support 100 for the stationary reactive power compensating device.

For example, the lower horizontal frame 210 , the vertical insulating frame 220 , and the upper horizontal frame 230 are assembled to provide six sets of the laminated frame part 200 assembled in a 'ㅁ' shape in the vertical direction. may be stacked along the At this time, the lower surface of the other lower horizontal frame 210 may be repeatedly seated on the upper surface of the upper horizontal frame 230 , and the stacked frame part 200 may be stacked.

Here, the laminated frame part 200 is the upper side of any one of the lower horizontal frames 210 of the laminated frame part 200 so that the plurality of the laminated frame parts 200 are insulated from each other during multi-stage stacking assembly along the vertical direction. and an insulating cover 240 disposed between the lower side of the other upper horizontal frame 230 of the laminated frame part 200 and fastened to an end of each of the vertical insulating frames 220 .

In this case, the insulating cover 240 may be provided as a flat plate having a rectangular cross-sectional shape having a width corresponding to the lower horizontal frame 210 and the upper horizontal frame 230, and the vertical insulating frame ( A coupling groove having a screw thread formed therein may be recessed so that the end side coupling screw threads 221a and 221b of the 220 are screwed together.

In addition, the laminated frame part 200 may further include an insulating ring 241 provided in a ring shape to which the coupling screws 221a and 221b are fastened. At this time, the insulating cover 240 and the insulating ring 241 are disposed on upper and lower sides of the lower horizontal frame 210 and the upper horizontal frame 230 and are fastened to the coupling screws 221a and 221b. can be combined.

Through this, the laminated frame part 200 including the lower horizontal frame 210, the vertical frame 220 and the upper horizontal frame 230 is pultruded from a fiber-reinforced plastic material, and the stationary reactive power is provided. Insulation of the support device 1000 for the compensating device may be remarkably improved.

In this case, terms such as "include", "comprise" or "comprise" described above mean that the corresponding component may be inherent unless otherwise stated, so other components are excluded. Rather, it should be construed as being able to include other components further. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Terms commonly used, such as those defined in the dictionary, should be interpreted as being consistent with the contextual meaning of the related art, and are not interpreted in an ideal or excessively formal meaning unless explicitly defined in the present invention.

As described above, the present invention is not limited to each of the above-described embodiments, and modifications can be implemented by those of ordinary skill in the art to which the present invention pertains without departing from the scope of the claims of the present invention. and such modifications are within the scope of the present invention.

1,1000: support device for stationary reactive power compensator 2,100: beam support
100A: core part 110: connection support part
120: load support part 121: inclined support part
122: hollow part 123: vertical extension part
124: extension fastening hole 130: STATCOM seating part
140: insulation reinforcement layer 140: mat
200: laminated frame portion 210: lower horizontal frame
220: vertical frame 230: upper horizontal frame
2010: Glass fiber supplier 2020: 1st impregnation tank
2030: first mold part 2040: second impregnation tank
2050: second mold part

Claims (5)

a first step in which a plurality of glass fibers are introduced and impregnated into a first impregnation tank containing a flame retardant resin, and the core part is first drawn while passing through the first mold part having a predetermined first opening cross-sectional area;
a second step of continuously stacking a mat comprising a filler comprising glass fibers, calcium carbonate and aluminum hydroxide along the outer portion of the core part; and
The cross-sectional profile corresponds to the inner surface profile of the second mold portion while the core portion, in which the mat is laminated on the outer portion, continuously passes through the second mold portion having a predetermined second opening cross-sectional area, but the mat is cured on the outer surface of the core portion A double molding method of a beam support for a stationary reactive power compensator comprising a third step of manufacturing the beam support by secondary pultrusion forming so that the insulating reinforcing layer is laminated in multiple layers. The method of claim 1,
In the second step, the mat is wound a plurality of times along the circumferential direction on the entire outer surface of the core part and stacked in multiple layers in the outer direction of the core part,
A double molding method of a beam support for a stationary reactive power compensator, characterized in that sequentially wound and stacked from the front end of the core to the rear end. The method of claim 1,
In the second step, the mat contains 60 to 70% by weight of glass fibers, 20 to 35% by weight of resin, and 5 to 10% by weight of fillers including calcium carbonate and aluminum hydroxide,
In the third step,
The second cross-sectional area of the opening is formed to be less than the cross-sectional area of the first opening so that the mat is attached to the outer surface of the core by pressing,
The second mold part is provided with a heating part for applying heat in a preset temperature range so that the mat is laminated on the outer surface of the core part and cured as the insulating reinforcing layer. delete delete

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