CN219643333U - Prefabricated box-type substation foundation - Google Patents

Abstract

The utility model discloses a prefabricated box-type transformer substation foundation, which solves the technical problem that water is easy to accumulate at the bottom of the existing box-type transformer substation foundation through grooves distributed around bottom blocks and water collecting slots intersected with the grooves. A groove corresponding to the middle block is formed in the periphery of the bottom plate, a water collecting slot hole is formed in one corner of the bottom plate, the water collecting slot hole is intersected with the groove, and the middle plate surface surrounded by the groove is in a lifting inclined plane shape along a connecting line between the corner of the water collecting slot hole and the opposite corner of the water collecting slot hole; the middle block and the top block are provided with a ladder corresponding to the inner side wall above the water collecting slot hole. The prefabricated box-type substation foundation has the advantages of avoiding water collection in the foundation, checking water collection slots, facilitating water pumping and draining and the like.

Description

Prefabricated box-type substation foundation

Technical Field

The utility model relates to the technical field of prefabricated building, in particular to a prefabricated box-type substation foundation.

Background

The box-type transformer substation is mainly formed by combining electrical units such as a multi-loop high-voltage switch system, an armored bus, a transformer substation comprehensive automatic system, communication, telecontrol, metering, capacitance compensation, a direct-current power supply and the like, is arranged in a steel structure box body which is dampproof, rust-proof, dustproof, rat-proof, fireproof, antitheft, heat-insulating, totally-enclosed and movable, and is mechanically-electrically integrated and totally-enclosed to operate.

The box transformer foundation is a building foundation of the box type transformer substation, and provides a balanced and stable foundation for inverter installation and box transformer installation. A channel for passing through the cable is arranged at the base of the box transformer substation, a hidden channel is provided for converging outgoing lines of the box to incoming lines of the inverter, and a channel is provided for converging outgoing lines of the inverter to incoming lines of the low-voltage side of the box. The existing box transformer substation foundation is built by adopting an on-site concrete pouring operation mode, the construction difficulty is high, the cost is high, and the inventor knows an assembled box transformer substation foundation (CN 216489385U) which is prefabricated and processed by a factory to form a corresponding top cover and a box body, and the prefabricated box transformer substation foundation is transported to a construction site for assembly and use after the prefabrication is completed.

However, in the process of implementing the technical solution in the embodiment of the present utility model, the present inventors have found that at least the following technical problems exist in the above technology: because the box transformer foundation is buried underground, water is easy to accumulate in the foundation, and the power supply and distribution safety of the box type transformer substation arranged above the box transformer foundation is further affected.

The information disclosed in this background section is only for enhancement of understanding of the background of the disclosure and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is well known to a person skilled in the art.

Disclosure of Invention

In view of at least one of the above technical problems, the present disclosure provides a prefabricated box-type substation foundation, which solves the technical problem that water is easy to accumulate at the bottom of the existing box-type substation foundation through grooves distributed around bottom blocks and water collecting slots intersected with the grooves.

According to one aspect of the disclosure, a prefabricated box-type substation foundation is provided, including top block, well piece, the bottom plate of vertical connection in proper order, the bottom plate seted up all around with the recess that the well piece corresponds, the water collecting slotted hole has been seted up to the one corner of bottom plate, the water collecting slotted hole with the recess is linked together, just the bottom plate middle part face that the recess surrounds is followed the line is gradually rising inclined plane form between the angle that the water collecting slotted hole is located and its diagonal.

In some embodiments of the disclosure, the middle block and the top block are provided with a ladder corresponding to an inner side wall above the water collecting slot hole.

In some embodiments of the disclosure, the grounding grid is further buried under the bottom plate, and comprises a grounding body perpendicular to the foundation pit of the box-type substation and buried around the foundation pit, and a grounding connecting line connected with the grounding body, wherein the grounding connecting line is led into the foundation of the box-type substation through the water collecting slot hole and fixed at a corresponding position in the foundation through a wiring bolt.

In some embodiments of the present disclosure, the connection part between the top block and the middle block is correspondingly provided with a boss for staggered intersection fixation.

In some embodiments of the present disclosure, the boss is provided with a water-swellable seal.

In some embodiments of the disclosure, the fixing device further comprises a connecting plate arranged at the joint of the top block and the middle block, and bolt holes are reserved at positions of the top block and each outer side face of the middle block, which correspond to the connecting plate, respectively, and are used for fixing corresponding fixing bolts correspondingly penetrating through two ends of the connecting plate.

In some embodiments of the present disclosure, channel steel is pre-embedded around the top surface of the top block.

In some embodiments of the disclosure, the top block is provided with a strip-shaped ventilation opening corresponding to the corresponding side wall part above the ground, and a shutter is arranged in the ventilation opening.

One or more technical solutions provided in the embodiments of the present utility model at least have the following technical effects or advantages:

1. because the grooves corresponding to the middle blocks are formed in the periphery of the bottom plate, the middle blocks can be clamped in the grooves, on one hand, the grooves are convenient for positioning the middle blocks in hoisting, and only the middle blocks are required to be opposite to the grooves and fall into the grooves; on the other hand, as the outer side wall of the middle block is coated by the outer side wall of the outer edge of the groove, the combination gap of the groove and the middle block is positioned on the upper surface of the bottom plate, so that compared with the situation that the combination gap is positioned on the side surface or the bottom surface of the bottom plate, the sealing between the combination gap and the middle block is more convenient, the sealing operation such as glue injection and the like can be performed within the limited operation space range, and the sealing reliability is effectively improved.

2. Because the bottom plate is provided with the water collecting slot holes intersected with the grooves, and the surface of the middle part of the bottom plate is inclined, water entering the inside of the box transformer foundation can flow to the water collecting slot holes at the lowest position from each relatively high position under the action of gravity, the grooves are lower relative to the surface of the middle part of the bottom plate and are intersected with the water collecting slot holes, so that water stored in the grooves when sealing failure of the joints of the grooves is avoided, and the water can directly flow into the water collecting slot holes through the positions intersected with the water collecting slot holes.

3. The cat ladder is arranged on the basic side wall above the water collecting slot hole, so that the water pump can be directly arranged through the overhaul hole at the cat ladder position to pump accumulated water at the water collecting slot hole.

Drawings

Fig. 1 is a schematic diagram of an assembled structure of a prefabricated box-type substation foundation according to an embodiment of the present utility model.

Fig. 2 is a schematic structural view of a foundation slab of a prefabricated box-type substation according to an embodiment of the present utility model.

Fig. 3 is a schematic structural view of a block in a prefabricated box-type substation foundation according to an embodiment of the present utility model.

Fig. 4 is a schematic structural view of a prefabricated box transformer substation foundation roof block according to an embodiment of the present utility model.

In the above figures, 1 is a bottom plate, 11 is a groove, 12 is a water collecting slot, 13 is a middle plate surface of the bottom plate, 2 is a middle block, 21 is a middle block top boss, 3 is a top block, 31 is a vent, 32 is a top block bottom boss, 4 is a ladder stand, 5 is a connecting plate, 6 is a cable hole, and 7 is a channel steel.

Detailed Description

In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "connected," "coupled," and "connected," as used herein, unless specifically indicated otherwise, are intended to encompass both direct and indirect connections (couplings).

In order to better understand the technical scheme of the present utility model, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

The embodiment discloses a prefabricated box-type substation foundation, see fig. 1, and it includes the kicking block, middle piece and the bottom plate of vertical connection in proper order, and the three is fixed sealed each other to through burying underground to expose ground certain height, constitute box-type substation's building foundation.

The bottom plate 1 is arranged at the bottom of a foundation pit of the box transformer foundation and is attached to the bottom surface of the foundation pit, and the sedimentation of the box transformer is uniform through the contact surface between the bottom plate 1 and the bottom surface of the foundation pit, so that the stability of the box transformer is ensured. Because the assembled structure is adopted, reliable connection and matching between the bottom plate 1 and the middle block 2 are required, referring to fig. 2, in the embodiment, the bottom plate is 3040 x 1740 x 250mm, the periphery of the bottom plate is provided with the groove 11 with the width matched with the thickness of the middle block 2, therefore, when the assembled structure is assembled, the middle block 2 can be clamped into the groove 11, the joint between the bottom plate 1 and the middle block 2 is preliminarily sealed through two side walls of the groove 11, and the alignment operation between the bottom plate 1 and the middle block 2 can be greatly facilitated through the groove 11, so that when the middle block is lifted and lowered and installed, the edge of the middle block 2 is opposite to the groove 11 of the bottom plate, the assembly and installation can be completed through vertical falling, the middle block is backfilled with the convex bottom block middle plate surface 13 surrounded by the groove to play a limiting effect, and the situation that when a box becomes a foundation pit after the later assembly is completed, the dislocation between the bottom plate 1 and the middle block 2 is caused by external force is avoided, and the performances such as sealing performance are influenced. In addition, the joint gap between the bottom plate 1 and the middle block 2 is positioned at the joint of the outer side wall of the groove on the upper surface of the bottom plate 1 and the middle block, compared with the joint which is positioned on the side surface or the bottom surface of the bottom plate, the joint positioned on the upper surface of the bottom plate is more beneficial to sealing operation under the limit of the limited operation range of the foundation pit of the box transformer, the influence of the operation space on the sealing reliability is reduced to the greatest extent, and furthermore, constructors can more effectively perform sealing operations such as gluing or grouting on the joint.

Considering that there may be sealing failure inside the foundation pit or water leakage phenomenon occurs in the foundation pit due to external factors, and because the groove 11 is a relatively low-lying part of the bottom plate, when the bottom plate middle plate surface 13 is uneven and the joint of the bottom plate and the middle block is not tightly sealed, water is extremely easy to gather in the groove, in order to avoid water collection, in this embodiment, referring to fig. 2, a water collecting slot 12 intersecting with the groove 11 is formed at a corner of the bottom plate 1, therefore, when water leakage occurs and water gathering flows into the bottom plate groove 11 from the bottom plate middle plate surface 12, the gathered water in the groove 11 can directly flow into the water collecting slot 12 through the intersection of the groove 11 and the water collecting slot 12, which is equivalent to adding a drainage groove, thereby improving the drainage effect inside the box transformer foundation, and greatly avoiding the water gathering on the bottom plate middle plate surface 13. Further, in order to enhance the drainage effect, the middle plate surface of the bottom plate is set to be in a lifted slope shape along the connection line of the water collecting slot hole and the diagonal line thereof, so that the angle of the water collecting slot hole 12 is the lowest position of the bottom plate, the diagonal line thereof is the highest position, and the water leaking from the box transformer foundation can directly flow to the water collecting slot hole 12 under the action of gravity or indirectly flow to the water collecting slot hole 12 through the groove 11.

In addition, because the box-type substation needs to be grounded to ensure the safety of power supply and distribution, in this embodiment, a grounding grid is arranged in a foundation pit of the box-type substation before the box-type substation foundation is assembled. The grounding grid comprises grounding bodies and grounding connecting wires, in the embodiment, the grounding bodies are arranged around the bottom of the foundation pit of the box transformer substation by adopting galvanized angle steel with the length of 2500mm and perpendicular to the bottom surface of the foundation pit, and are reliably connected with the grounding bodies through the grounding connecting wires. The grounding connection wire is led out to the inside of the box transformer substation foundation at the position of the water collecting slot hole 12 of the box transformer substation foundation, is fixed on the side wall of the box transformer substation foundation through a wiring bolt, and after assembly, each electrical device of the box transformer substation is correspondingly connected with the wiring bolt, so that the grounding is realized, and the power supply and distribution safety is ensured.

The middle block 2 is embedded in a groove corresponding to the bottom plate 1 and serves as one of side walls of a box transformer foundation, referring to fig. 3, in this example, the size of the middle block is 2900 x 1600 x 1150mm, a cable hole 6 is formed in the side wall of the middle block 2 and used for connecting and penetrating out a cable, and a ladder stand is embedded in the side wall 2 of the middle block corresponding to the upper side of the water collecting slot 12 of the bottom plate, so that an access hole corresponding to the ladder stand is positioned right above the water collecting slot 12, on one hand, the water collecting condition in the water collecting slot can be observed directly through the access hole, and whether the water collecting slot overflows or not is judged, so that further drainage treatment measures are taken; on the other hand, the problem that water leakage from the access hole is caused by the fact that the access hole is not tightly sealed is avoided, so that leaked water flows into the water collecting slot holes below the access hole as directly as possible, and aggregation on the bottom plate is avoided.

The top block 3 is fixedly connected with the middle block 2 correspondingly, and is used as one of the side walls of the box transformer foundation, in order to enable the top block 3 to be tightly connected with the middle block 2, referring to fig. 3-4, one side of the top side wall of the middle block is provided with a top boss 21, the corresponding side of the bottom side wall of the top block is provided with a bottom boss 32 corresponding to the top boss 21, and the two bosses are connected in a staggered mode and tightly combined and connected into an integral side wall. In order to ensure the connection tightness of the two, in the embodiment, on one hand, water-swelling water stop strips are respectively arranged on the two bosses to avoid water intrusion; on the other hand, referring to fig. 1, connecting plates 5 are arranged at the joints between the peripheral outer side walls of the middle block 2 and the top block 3, in this example, the connecting plates 5 are steel plates, fixing bolts are respectively arranged at two ends of each steel plate in a penetrating manner, bolt holes are reserved at the positions of the middle block 2 and the top block 3 corresponding to the fixing bolts of the connecting plates, so that the fixing of the connecting plates is realized, and the traction effect of the peripheral connecting plates 5 is achieved, so that the aim of reliable connection between the middle block 2 and the top block 3 is fulfilled.

In addition, referring to fig. 4, the top block is 2900×1600×1150, the channel steel 7 is pre-embedded around the top of the top block 3, the channel steel 7 can provide a fixed foundation of the box transformer substation, so that the box transformer substation foundation can stably support the box transformer substation, the channel steel 7 can be connected with the wiring bolts through the grounding connection line to form a grounding path, and the safety of the box shell of the box transformer substation is ensured. Similarly, a ladder is embedded above the water collecting slot hole of the bottom block corresponding to the side wall of the top block, and the ladder is arranged coaxially with the reserved ladder at the corresponding position of the middle block. Considering the ventilation problem in the well, and the box-type substation foundation can be higher than the ground by a certain height, so in this example, see fig. 4, a vent 31 is reserved on the side wall of the top block 3 corresponding to the higher ground, natural ventilation of air in the foundation is realized through the vent, and the louver is arranged in the vent, so that foreign matters are prevented from entering the foundation while ensuring ventilation to a certain extent.

While certain preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (8)

1. The utility model provides a prefabricated box-type substation basis, includes kicking block, well piece, the bottom plate of vertical connection in proper order, its characterized in that, the bottom plate set up all around with the recess that the well piece corresponds, the water collecting slotted hole has been seted up to the one corner of bottom plate, the water collecting slotted hole with the recess is linked together, just the bottom plate middle part face that the recess surrounded is followed the line is gradually rising inclined plane form between the angle that the water collecting slotted hole is located and its diagonal.

2. The prefabricated box-type substation foundation according to claim 1, wherein the inner side walls of the middle block and the top block, which correspond to the upper side of the water collecting slot hole, are provided with climbing ladders.

3. The prefabricated box-type substation foundation according to claim 1, further comprising a grounding grid buried below the bottom plate, wherein the grounding grid comprises a grounding body perpendicular to a foundation pit of the box-type substation and buried around the foundation pit, and a grounding connecting line connected with the grounding body, and the grounding connecting line is led into the interior of the box-type substation foundation through the water collecting slot hole and fixed at a corresponding position in the interior of the foundation through a connecting bolt.

4. The prefabricated box-type substation foundation according to claim 1, wherein the connection part between the top block and the middle block is correspondingly provided with a boss for staggered intersection fixation.

5. The prefabricated box substation foundation according to claim 4, wherein water-swelling water stop bars are arranged on the bosses.

6. The prefabricated box-type substation foundation according to claim 1, further comprising connecting plates arranged at joints of the top blocks and the middle blocks, wherein bolt holes are reserved at positions of the top blocks, corresponding to the connecting plates, of the outer side faces of the middle blocks respectively and are used for fixing corresponding fixing bolts correspondingly penetrating through two ends of the connecting plates.

7. The prefabricated box substation foundation according to claim 1, wherein channel steel is embedded around the top surface of the top block.

8. The prefabricated box-type substation foundation according to claim 1, wherein the top block is provided with a strip-shaped ventilation opening corresponding to the corresponding side wall part above the ground, and a shutter is arranged in the ventilation opening.