CN111653955A - A rapid construction method for realizing the installation foundation of secondary screen cabinets in substations - Google Patents

Abstract

The invention relates to the technical field of electric power equipment, in particular to a rapid construction method for realizing the installation foundation of secondary screen cabinets in substations, which specifically includes the following steps: S1 grooving → S2 preparing concrete → S3 pouring concrete → assembling base → S5 installation Base → S6 to install the secondary panel cabinet of the substation. In the present invention, by excavating a 0.4m deep base fixing groove and installing the bottom of the substation secondary screen cabinet in the groove, it not only speeds up the progress of civil construction and reduces the difficulty of construction, but also achieves the goal of saving costs and improves the two The installation and construction efficiency of the base of the secondary screen cabinet reduces the work intensity, shortens the civil construction time and construction cost, saves resources, and increases the reliability of the power grid operation. Function, can unify the various levels of the base, making the structure more stable.

Description

A rapid construction method for realizing the installation foundation of secondary screen cabinets in substations

technical field

The invention relates to the technical field of electric power equipment, in particular to a rapid construction method for realizing the installation foundation of a secondary screen cabinet of a substation.

Background technique

To install the secondary control panel (cabinet), the method of reserving the foundation pit requires excavating the original foundation and reserving enough space so that the electrical equipment can be safely connected to each other through cables, and at the same time, the original installation foundation will not be affected. However, excavating a foundation pit with a depth of 1.2m in the limited space of the main control room, and on the premise of not affecting the stability of the original equipment foundation, the existing method of making the base foundation is difficult to construct, resulting in construction Progress is slow. In the process of foundation excavation, the amount of earthwork excavation is large, and it is difficult to carry out the transport of the generated spoil.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a fast construction method for realizing the installation foundation of the secondary panel cabinet of the substation, so as to solve the problems of the heavy workload and slow construction speed of the installation of the secondary control panel in the above-mentioned background art.

To achieve the above object, the present invention provides the following technical solutions:

A rapid construction method for realizing the installation foundation of secondary screen cabinets in substations, specifically comprising the following steps:

S1 Slotting: Select the installation position of the secondary screen cabinet of the substation, excavate the foundation pit for installing the base of the secondary screen cabinet of the substation at the selected position, and correct the corners;

S2 Preparation of concrete: C20 concrete is produced on site, 12g of water should be mixed with every 100g of raw materials, and it should be vibrated manually for about 10min until the concrete has fluidity;

S3 pouring concrete: pouring concrete slurry in the excavated foundation pit, and the strength of the concrete is 35-50%;

S4 assembly base: the base used to install the secondary panel cabinet of the substation will be spliced with various raw materials, and the surface will be galvanized;

S5 installation base: After the concrete is solidified and formed, the spliced base is installed on the top of the poured concrete, and the position of each corner of the base is adjusted through the liftable support mechanism on the base, so that the top surface of the base is horizontal;

S6 Install the secondary screen cabinet of the substation: Move the secondary screen cabinet of the substation to the base for fixing.

Preferably, the depth of the foundation pit is 0.4m, and the bottom area of the foundation pit is the same as the footprint of the base.

Preferably, the base includes two sets of parallel beams and two sets of parallel beams, the two sets of beams and the two sets of longitudinal beams form a rectangular structure, and the bottoms of the two sets of beams are installed with two parallel adjustable beams. Lifting support mechanism, the liftable support mechanism includes a support leg, a bolt fixing sheet is installed on the support leg, a mounting screw hole is opened at the center of the bolt fixing sheet, and the inner thread of the mounting screw hole is connected with a fine-tuning bolt A first nut and a second nut are threaded on the fine adjustment bolt, and the first nut and the second nut are respectively arranged on the upper and lower sides of the bolt fixing plate.

Preferably, a top seat is installed on the top of the support leg, mounting holes are provided on the edges of both ends of the top seat, and the bottom surface of the beam is provided with a size, corresponding position and number of the mounting holes. The same connection screw holes.

Preferably, the support legs are threadedly connected to the bottom of the beam by fixing bolts through the mounting holes and the connecting screw holes in sequence.

Preferably, the beams, the longitudinal beams and the supporting legs are all made of angle steel, and the thickness of the angle steel is 5 mm.

Preferably, the length of the cross beam is 800mm, the length of the longitudinal beam is 400mm, and the length of the support leg is 150mm.

Preferably, the length of the fine adjustment bolt is 90mm, the thickness of the first nut and the second nut is 15mm, and the thickness of the nut is 15mm.

Preferably, the bottom end of the fine adjustment bolt is a light screw, and its length is 10mm.

Compared with the prior art, the beneficial effects of the present invention are:

1. In this fast construction method for realizing the installation foundation of the secondary screen cabinet of the substation, by excavating a base fixing groove with a depth of 0.4m and installing the bottom of the secondary screen cabinet in the substation to fix the bottom of the substation, it not only speeds up the progress of civil construction and reduces the The difficulty of construction has also achieved the goal of saving costs, improving the construction efficiency of the installation of the base of the secondary screen cabinet, reducing the work intensity, shortening the construction cost of civil construction, saving resources and increasing the reliability of power grid operation.

2. The lifting and lowering support mechanism provided in the rapid construction method for realizing the installation foundation of the secondary screen cabinet of the substation has a simple structure and a reasonable design. By adjusting the relative position of the fine-tuning bolt, the relative height of the nut is changed, so as to realize the adjustable height It can unify the various levels of the base, and the nut welded on the bottom of the channel steel has a fixed function, reducing the movement of the screw and the base support, making the structure more stable.

Description of drawings

Fig. 1 is the structural representation of the base of the present invention;

Fig. 2 is the exploded structure schematic diagram of the beam of the present invention;

The definitions of the symbols in the figure are:

100. Beam; 101. Mounting screw holes;

200, longitudinal beam;

300, liftable support mechanism; 301, support leg; 302, connecting top seat; 303, mounting hole; 304, bolt fixing plate; 305, mounting screw hole; 306, fine adjustment bolt; 307, first nut; 308, second nut.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc., or The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as a limitation of the present invention.

Example 1

A rapid construction method for realizing the installation foundation of secondary screen cabinets in substations, specifically comprising the following steps:

S1 Slotting: Select the installation position of the secondary screen cabinet of the substation, excavate the foundation pit for installing the base of the secondary screen cabinet of the substation at the selected position, and correct the corners;

S2 Preparation of concrete: C20 concrete is produced on site, 12g of water should be mixed with every 100g of raw materials, and it should be vibrated manually for about 10min until the concrete has fluidity;

S3 pouring concrete: pouring concrete slurry in the excavated foundation pit, and the strength of the concrete is 35-50%;

S4 assembly base: the base used to install the secondary panel cabinet of the substation will be spliced with various raw materials, and the surface will be galvanized;

S5 installation base: After the concrete is solidified and formed, the spliced base is installed on the top of the poured concrete, and the position of each corner of the base is adjusted through the liftable support mechanism on the base, so that the top surface of the base is horizontal;

S6 Install the secondary screen cabinet of the substation: Move the secondary screen cabinet of the substation to the base for fixing.

Further, the depth of the foundation pit is 0.4m, and the bottom area of the foundation pit is the same as that of the base.

The rapid construction method for realizing the installation foundation of the secondary screen cabinet of the substation in this embodiment not only accelerates the progress of civil construction and reduces the The difficulty of construction has also achieved the goal of saving costs, improving the construction efficiency of the installation of the base of the secondary screen cabinet, reducing the work intensity, shortening the construction cost of civil construction, saving resources and increasing the reliability of power grid operation.

Example 2

As the second embodiment of the present invention, as shown in FIG. 1 and FIG. 2 , the base includes two sets of parallel beams 100 and two sets of parallel beams 200 , and the two sets of beams 100 and the two sets of longitudinal beams 200 form a rectangle. Structure, the bottoms of the two sets of beams 100 are installed with two parallelly arranged liftable support mechanisms 300. The liftable support mechanism 300 includes a support leg 301, and a bolt fixing piece 304 is installed on the support leg 301. The center of the bolt fixing piece 304 A mounting screw hole 305 is provided, and a fine-tuning bolt 306 is threadedly connected to the mounting screw hole 305. The fine-tuning bolt 306 is threadedly connected with a first nut 307 and a second nut 308. The upper and lower sides of the sheet 304.

Further, a top seat 302 is installed on the top of the support leg 301 , and mounting holes 303 are formed on the edges of both ends of the top seat 302 . The connecting screw holes 101, the support legs 301 are screwed to the bottom of the beam 100 through the mounting holes 303 and the connecting screw holes 101 in turn through the fixing bolts 400, so that the support legs 301 can be easily installed or removed. If a plurality of supporting legs 301 are damaged, they can be replaced individually, which saves maintenance costs.

Specifically, the beam 100, the longitudinal beam 200 and the support legs 301 are all made of angle steel, and the thickness of the angle steel is 5 mm, the length of the beam 100 is 800 mm, the length of the longitudinal beam 200 is 400 mm, and the length of the supporting legs 301 is 150 mm. The length of the bolt 306 is 90mm, the thickness of the first nut 307 and the second nut 308 is 15mm, and the thickness of the nut is 15mm. The adjustable maximum length is 90-2×15-15-10-5=30mm.

The lifting and lowering support mechanism 300 provided in the rapid construction method for realizing the installation foundation of the secondary panel cabinet of the substation in this embodiment has a simple structure and a reasonable design. The height-adjustable function can unify the various levels of the base, and the nut welded on the bottom of the channel steel has a fixed function, reducing the movement of the screw and the base support, making the structure more stable.

The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions are only preferred examples of the present invention, and are not intended to limit the present invention, without departing from the spirit and scope of the present invention. Under the premise, the present invention will also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (9)

1. a kind of quick construction method that realizes the installation foundation of secondary screen cabinet of substation, it is characterized in that: specifically comprise the steps: S1 Slotting: Select the installation position of the secondary screen cabinet of the substation, excavate the foundation pit for installing the base of the secondary screen cabinet of the substation at the selected position, and correct the corners; S2 Preparation of concrete: C20 concrete is produced on site, 12g of water should be mixed with every 100g of raw materials, and it should be vibrated manually for about 10min until the concrete has fluidity; S3 pouring concrete: pouring concrete slurry in the excavated foundation pit, and the strength of the concrete is 35-50%; S4 assembly base: the base used to install the secondary panel cabinet of the substation will be spliced with various raw materials, and the surface will be galvanized; S5 installation base: After the concrete is solidified and formed, the spliced base is installed on the top of the poured concrete, and the position of each corner of the base is adjusted through the liftable support mechanism on the base, so that the top surface of the base is horizontal; S6 Install the secondary screen cabinet of the substation: Move the secondary screen cabinet of the substation to the base for fixing. 2 . The rapid construction method for realizing the installation foundation of the secondary panel cabinet of the substation according to claim 1 , wherein the depth of the foundation pit is 0.4m, and the bottom area of the foundation pit is the same as that of the base. 3 . 3. The rapid construction method for realizing the installation foundation of the secondary panel cabinet of a substation according to claim 1, wherein the base comprises two groups of parallel beams (100) and two groups of parallel beams (200) , the two sets of beams (100) and the two sets of longitudinal beams (200) form a rectangular structure, and the bottoms of the two sets of beams (100) are installed with two parallelly arranged liftable support mechanisms (300), the liftable supports The mechanism (300) includes a support leg (301) on which a bolt fixing sheet (304) is installed, and a mounting screw hole (305) is opened at the center of the bolt fixing sheet (304), and the A fine-tuning bolt (306) is threadedly connected to the mounting screw hole (305), and a first nut (307) and a second nut (308) are threadedly connected to the fine-tuning bolt (306), and the first nut (307) and the The second nuts (308) are respectively disposed on the upper and lower sides of the bolt fixing plate (304). 4. The rapid construction method for realizing the installation foundation of the secondary panel cabinet of the substation according to claim 3, characterized in that: the top of the support leg (301) is provided with a connecting top seat (302), and the connecting top seat ( 302) are provided with mounting holes (303) at the edges of both ends, and the bottom surface of the beam (100) is provided with connecting screw holes (101) which are of the same size, corresponding positions and the same number as the mounting holes (303). ). 5. The rapid construction method for realizing the installation foundation of the secondary panel cabinet of a substation according to claim 4, wherein the support legs (301) pass through the installation holes (303) and the connection bolts in turn through the fixing bolts (400). The hole (101) is screwed to the bottom of the beam (100). 6. The rapid construction method for realizing the installation foundation of the secondary panel cabinet of a substation according to claim 3, wherein the beam (100), the longitudinal beam (200) and the supporting legs (301) are all made of angle steel, And the thickness of the angle steel is 5mm. 7. The rapid construction method for realizing the installation foundation of the secondary panel cabinet of a substation according to claim 6, wherein the length of the beam (100) is 800mm, the length of the longitudinal beam (200) is 400mm, and the The length of the support leg (301) is 150mm. 8. The rapid construction method for realizing the installation foundation of the secondary panel cabinet of a substation according to claim 6, characterized in that: the length of the fine-tuning bolt (306) is 90mm, and the first nut (307) and the second nut (308) ) is 15mm thick and the nut is 15mm thick. 9. The rapid construction method for realizing the installation foundation of the secondary panel cabinet of the substation according to claim 6, wherein the bottom end of the fine adjustment bolt (306) is a light screw, and its length is 10mm.

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