CN103410176B - Protective cap for column base of transformer substation power distribution unit steel frame - Google Patents

Abstract

The invention discloses a protection cap for a steel frame column foot of a power distribution device in a substation. At present, if the steel structure of the steel frame column foot of the substation power distribution device is not protected, it is easy to be corroded by the surface water in the soil. The conventional protective cap is in the form of cast-in-place plain concrete, which is difficult to construct on site. The present invention adopts the following technical scheme: a protective cap for the steel frame column feet of a power distribution device in a substation, including a plastic cap body, which is characterized in that the cap body is formed by two half cap A positioning hole for sealing connection is formed at the center of the end face, half of the positioning hole is formed on the upper end face of each half cap body, and a hole is opened on the upper end face of one half cap body for injecting into the inner cavity of the cap body. The grease filling port of the butter is connected with a sealing member at the butter filling port. Each part of the column foot protection cap of the present invention can be molded and assembled on site, and is easy to assemble and disassemble; it has good integrity and water tightness.

Description

Protective cap for steel frame column foot of power distribution device in substation

technical field

The invention relates to a protective device for substation infrastructure, in particular to a protection cap for the steel frame column feet of a power distribution device in a substation.

Background technique

The structure (support) of substation power distribution device can be divided into steel structure and concrete structure according to the material. With the improvement of the country's overall economic strength and the voltage level of substations, in the selection of structural materials for substation power distribution device structures (supports), while considering safety, it is also necessary to consider structural economy, processing and manufacturing and construction. , The aesthetics of finished product quality, etc.

With the rapid development of my country's economy, my country's steel output has also increased significantly. In 2005 alone, my country's annual steel output was about 342 million tons, accounting for nearly 1/3 of the world's total output, becoming a major steel exporter. The quality of my country's steel is also steadily improving, and the market price is also tending to be reasonable. Therefore, in recent years, in the substation structure (support) structure with a voltage level of 110 kV and above, the equipment structure in the form of reinforced concrete centrifugal rods is used. There are fewer and fewer brackets.

The application of steel structures (supports) has developed rapidly in recent years. The connection form of the steel structure (support) frame and the foundation is divided into two types: the cup mouth insertion type and the bolt connection type. Due to the technical requirements of the substation construction, the top surface elevation of the structure (support) frame foundation is generally 200mm lower than the ground, and the column foot part If the steel structure is not protected, it will be easily corroded by the surface water in the soil. The conventional protective cap is in the form of cast-in-place plain concrete, which is difficult to construct on site.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art, and provide a protective cap for the steel frame column foot of the substation power distribution device, which can be easily disassembled and assembled, so as to reduce the difficulty of construction, shorten the construction period, and improve the recovery of resources utilization rate.

For this reason, the present invention adopts the following technical solution: a protective cap for the steel frame column feet of a substation power distribution device, including a plastic cap body, which is characterized in that the cap body is formed by sealing the left and right sides of two half cap bodies, A positioning hole for sealing connection is formed at the center of the upper end surface of the cap body, and half of the positioning hole is formed on the upper end surface of each half cap body, and a hole is opened on the upper end surface of one of the half cap bodies for inserting the cap into the upper end surface of the cap body. The inner cavity is filled with a butter filling port for butter, and a sealing member is connected with the butter filling port.

When the present invention is in use, anticorrosion protection is carried out on the steel frame column foot of the power distribution device of the substation through the butter injected into the inner cavity of the cap; the waterproof protection is carried out on the steel frame column foot and the butter in the inner cavity of the cap through the sealed cap body; The positioning hole is sealed and matched with the steel frame column to achieve the sealing of the connection between the two.

The structure of the invention enables each component to be completed by on-site mold processing and on-site installation, which overcomes the disadvantages of difficult on-site construction and high later maintenance and replacement costs of traditional concrete protection caps. The present invention can be installed on the steel frame column foot of the power distribution device of the substation in the way of clamping installation, and it is relatively convenient to disassemble. The workload of the substation when replacing the equipment structure (support) in the later stage shortens the construction period.

Further, a continuous horizontally arranged rubber waterstop is embedded on the two butt surfaces of the upper part of one half cap and the wall of the half positioning hole; It is also embedded with a continuous horizontally arranged rubber waterstop, and the two butt joint surfaces of the upper part of the half cap body also have a horizontally arranged waterstop expansion groove; when the two half cap bodies are docked, the upper part of the half cap body The rubber waterstop on the butt joint surface is placed in the waterstop expansion groove on the other half of the cap body, so that the butt joint surface on the top of the half cap body can achieve the purpose of waterproofing.

Furthermore, when the two half caps are butted, the rubber waterstop in the positioning hole forms a waterstop on the same plane, which further improves the sealing performance of the connection between the positioning hole and the steel frame column foot.

Further, the butt joints on both sides formed by the docking of the two half-caps are clamped with a connecting clip on the outer wall of the cap, and the two half-caps after the docking are firmly combined through the connecting clip; The height is consistent with the height of the butt joint, so that the combination of the two half-caps is more firm.

Further, the butt joints of the two half-caps are connected by longitudinal ribs and longitudinal grooves closely matched with the longitudinal ribs, when the two half-caps are docked, the longitudinal ribs are placed in the longitudinal grooves; Both the rubber waterstop and the expansion groove of the waterstop are located inside the longitudinal rib and the longitudinal groove.

Further, a slot for accommodating the longitudinal rib and the longitudinal groove is formed on the connecting clip, and the connecting clip is used to combine the two half-caps after butt joint into one by using the slot.

Further, the butt seam formed by the butt joint of the two half-cap bodies and the connection seam formed between the connecting clip and the butt joint are all filled with sealing and waterproof glue, which effectively improves the airtightness of the cap body.

Further, the sealing element is a bolt, and the bolt is a standard part, the cost of the sealing element is low, and the processing is convenient.

Further, the bottom of the cap body is open, and the lower end surface is flat, and the flat lower end surface is used in conjunction with the platform at the bottom of the steel frame column foot.

Furthermore, the cap is in the shape of a platform with a small top and a large bottom, and the cap structure has good stability.

Each part of the column foot protective cap of the present invention can be molded on site and installed on site, which is convenient for disassembly and assembly; it has good integrity and water tightness, simple site installation process, high maintainability and replaceability in the later stage, and high resource recovery rate , effectively saving the life cycle cost of substation construction.

Description of drawings

Figure 1 is an exploded view of the structure of the cap body of the present invention.

Fig. 2 is an enlarged view of part A in Fig. 1 .

Fig. 3 is a schematic diagram of the structure of the cap body of the present invention.

Fig. 4 is a schematic structural diagram of the connecting clip of the present invention.

Fig. 5 is a schematic structural diagram of the present invention.

6-8 are schematic diagrams of installation of the present invention on a steel frame column foot.

Detailed ways

As shown in the figure, the protective cap of the steel frame column foot of the power distribution device of the substation, the plastic cap body is formed by two half cap bodies 1 and 2 left and right sealed butt joints, and the center of the upper end surface of the cap body forms a positioning hole 3 for sealing connection , the upper end face of each half cap body forms half described positioning hole, and the upper end face of one half cap body 1 wherein has a butter filling port 4 for injecting butter into the inner chamber of the cap body, the butter filling port 4 places are connected with bolts 13 for sealing. The bottom of the cap body is open, and the lower end surface is a plane. The cap is in the shape of a platform with a small top and a large bottom.

A continuous transversely arranged rubber waterstop 5 is embedded on the two butt joint surfaces of the half cap body 1 top and the hole wall of the half positioning hole. A continuous horizontally arranged rubber waterstop 6 is also embedded on the hole wall of the half positioning hole on the upper part of the half cap body 2, and a horizontally arranged waterstop strip is respectively opened on the two butt joint surfaces of the upper part of the half cap body 2. Expansion tank 7. When two half-caps are docked, the rubber waterstop on the butt joint surface of the half-cap 1 top is placed in the waterstop expansion groove 7 on the half-cap 2 . When the two half-caps are docked, the rubber waterstop in the positioning hole forms a waterstop on the same plane.

The butt joints on both sides formed by the butt joint of the two half caps are connected with a connecting clip 8 on the outer wall of the cap body, and the height of the connecting clip is consistent with the height of the butt joints. The butt joints of the two half-caps are connected by longitudinal ribs 9 and longitudinal grooves 10 that closely match the longitudinal ribs. When the two half-caps are docked, the longitudinal ribs are placed in the longitudinal grooves; the rubber stop Both the water belt and the expansion groove of the water stop are located inside the longitudinal rib and the longitudinal groove. A slot 11 for accommodating the longitudinal rib and the longitudinal groove is formed on the connecting clip 8 . The butt seam formed by the butt joint of the two half-cap bodies and the connection seam formed between the connecting clip and the butt joint are all filled with sealing and waterproof glue 12 .

When the present invention is installed, as shown in Figure 6, the two half-caps are first docked on the bottom platform of the steel frame column foot, so that the half-cap body and the steel frame column foot are sealed and connected, and the state after the docking is shown in Figure 7 As shown in Figure 8, finally attach the clip to the docking part, as shown in Figure 8.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the structure of the present invention in any form. All simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention fall within the protection scope of the present invention.

Claims (9)

1. a protective cap for column base of transformer substation power distribution unit steel frame, comprise plastic cap body, it is characterized in that, described cap body is docked by two and half cap bodies (1,2) right-left seal and forms, the locating hole (3) of center formation one for being tightly connected of cap body upper surface, the upper surface of each half cap body forms the locating hole described in half, the upper surface of one of them half cap body has one for injecting the screwdown greaser (4) of butter toward cap intracoelomic cavity, screwdown greaser place connects a seal;

Two interfaces on one of them half cap body (1) top and the hole wall of half locating hole are embedded with the rubber fastening band (5) of a continuous print horizontally set; The hole wall of half locating hole on another half cap body (2) top is also embedded with the rubber fastening band (6) of a continuous print horizontally set, two interfaces on this half cap body (2) top also respectively have the waterstop expansion slot (7) of a horizontally set; During two and half cap body docking, the rubber fastening band of the interface on half cap body top is placed in the waterstop expansion slot (7) on second half cap body.

2. protective cap for column base of transformer substation power distribution unit steel frame according to claim 1, is characterized in that, during two and half cap body docking, the rubber fastening band being positioned at locating hole forms a sealing collar in the same plane.

3. protective cap for column base of transformer substation power distribution unit steel frame according to claim 1 and 2; it is characterized in that; outside the docking section, both sides that two and half cap body docking are formed, all clamping one is positioned at the connection card article (8) on the external sidewall of cap, and the height connecting card article (8) is consistent with the height of docking section.

4. protective cap for column base of transformer substation power distribution unit steel frame according to claim 3, it is characterized in that, the docking section of described two and half cap bodies adopts longitudinal convex tendon (9) and is connected with the close-fitting longitudinal fluting of longitudinal convex tendon (10), during two and half cap body docking, longitudinal convex tendon is placed in longitudinal fluting; Described rubber fastening band and waterstop expansion slot are all positioned at the inner side of longitudinal convex tendon and longitudinal fluting.

5. protective cap for column base of transformer substation power distribution unit steel frame according to claim 4, is characterized in that, the upper formation one of described connection card article (8) is for holding the draw-in groove (11) of longitudinal convex tendon and longitudinal fluting.

6. protective cap for column base of transformer substation power distribution unit steel frame according to claim 3, is characterized in that, the butt joint that described two and half cap body docking are formed and the connecting sewing formed between connection card article and docking section are all filled with water-tight glue (12).

7. protective cap for column base of transformer substation power distribution unit steel frame according to claim 1, is characterized in that, described seal is bolt (13).

8. protective cap for column base of transformer substation power distribution unit steel frame according to claim 1, is characterized in that, the bottom opening of described cap body, and lower surface is plane.

9. protective cap for column base of transformer substation power distribution unit steel frame according to claim 1, is characterized in that, described cap body is up-small and down-big stage body shape.