CN219018147U

CN219018147U - Secondary on-site equipment compartment mounting structure of transformer substation

Info

Publication number: CN219018147U
Application number: CN202223493380.6U
Authority: CN
Inventors: 栾霄雷; 王凯; 周玉荣; 张添阳
Original assignee: NR Electric Co Ltd; NR Engineering Co Ltd
Current assignee: NR Electric Co Ltd; NR Engineering Co Ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-05-12
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses a secondary on-site equipment cabin installation structure of a transformer substation, which comprises a prefabricated cabin body, wherein the cabin body comprises a cabin body framework, a top cover, a cabin wall and a cabin door are installed on the cabin body framework, an intra-cabin rack is arranged in the cabin body framework, and the intra-cabin rack comprises an equipment rack, a cable interface rack and an optical cable interface rack. The integrated prefabricated cabin is adopted, and the whole prefabricated cabin of the secondary equipment is integrally transported to an engineering site, so that the installation, wiring and construction of the secondary equipment in the transformer substation are facilitated; compared with newly-built secondary equipment cells, the building area and the occupied area are reduced, the saving and the environmental protection are realized, a plurality of installation links in the construction process are omitted, and the link pollution is reduced; the device has the characteristics of convenient and quick installation and replacement and convenient external cable wiring, and is suitable for outdoor on-site installation occasions of electric power automation secondary equipment in a transformer substation; the concentration and integration level of the equipment are improved, the equipment is effectively saved, and the field workload is reduced.

Description

Secondary on-site equipment compartment mounting structure of transformer substation

Technical Field

The utility model relates to a secondary on-site equipment cabin installation structure of a transformer substation, and belongs to the technical field of power system automation.

Background

The traditional secondary equipment screen cabinet of the transformer substation needs to be deployed and installed in indoor environments such as a main control room. Under the installation mode, the site is limited by the site environment, the civil engineering house is difficult, the cost is increased, and the difficulty and the construction time of the site debugging and installation of related equipment are increased. In view of this situation, a flexible and miniaturized prefabricated cabin structure needs to be studied in order to achieve in-situ installation and operation of the secondary equipment after modification or addition without adding new buildings.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, provides a secondary on-site equipment cabin installation structure of a transformer substation, adopts a modularized equipment installation cabin body which can be prefabricated in a factory and can save the occupied area on site and is convenient to deploy, has the external dimension which can be flexibly assembled and combined according to the actual requirements of engineering, is convenient for on-site deployment of various different on-site environments, avoids the condition that a master control indoor screen position or a new control room is needed in a station in a traditional mode, and solves the problems of great improvement of a large number of transformer substations and inconvenience of new system deployment.

In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:

the utility model provides a secondary on-the-spot equipment compartment mounting structure of transformer substation, includes prefabricated cabin body, the cabin body includes cabin body skeleton, install top cap, bulkhead and hatch door on the cabin body skeleton, be equipped with the cabin frame in the cabin body skeleton, the cabin frame includes equipment frame, cable interface frame and optical cable interface frame.

Furthermore, the bottom of the prefabricated cabin body can be provided with lifting points, so that the prefabricated cabin is convenient to lift.

Further, the cabin body framework comprises an integrally welded underframe and a frame, and the underframe is formed by integrally welding the underframe framework and an underframe plank; the frame consists of upright posts, cross beams, door flanges, supporting beams, corner plates and accessories. The cabin body framework adopts a steel or thin-wall cold-formed steel welding type structure, so that sufficient strength and rigidity are ensured.

Further, the cable interface rack is provided with a cable channel inlet and a cable channel outlet communicated with a cable channel in the station, communication cables and control cables in the cable interface rack are separately laid, and the communication cables are provided with independent trunking; the signal interference to communication can be reduced by the arrangement of the strong and weak current sub-slots.

Further, the optical cable interface frame is provided with an optical cable wiring groove, the secondary equipment is connected with the optical fibers outside the cabin by adopting prefabricated optical cables, and the optical fiber storage cabin is arranged in the optical cable interface frame and used for storing and fixing redundant tail cables and tail fibers in the cabinet.

Furthermore, the cabin frame is formed by cold bending a section bar or a thin plate, and is fixed with the underframe framework of the cabin framework or integrally welded with the cabin framework through foundation bolts. The installation size of the equipment rack in the width direction accords with the width size of a 19-inch series chassis and a panel, and the installation size of the equipment rack in the height direction is standardized and serialized according to 44.45mm (1U), so that the fixed installation of various rack-type secondary equipment is facilitated.

Further, the top cover is an integrated double-slope roof structure and comprises a top cover framework and a top cover sealing plate, and the gradient of the double-slope roof structure is not less than 5 degrees. The top cover sealing plate and the top cover framework are subjected to heat preservation treatment by filling rock wool or polyurethane foaming, the foaming thickness is more than or equal to 50mm, and a good heat preservation effect is achieved. The top cover edge can be provided with a dripping edge for preventing rainwater from flowing back into the cabin.

Furthermore, the cabin door is a double-opening cabin door capable of being opened from the middle, is arranged on the bulkheads at the front side and the rear side of the cabin body, and is provided with an observation window. The cabin door adopts a double-layer steel plate structure, the material is preferably high-quality galvanized plate, the thickness of the inner door plate is more than or equal to 1.2mm, the thickness of the outer door plate is more than or equal to 2mm, and the flatness of the sealing surface is controlled within 0.75mm per meter. The cabin door hinge is a blind hinge and is made of stainless steel, so that no corrosion is caused at the movable part within the service life of the cabin body; the cabin door is provided with double-layer observation windows which are not smaller than 800 multiplied by 400 in size and meet the requirements of convenient inspection of the equipment in the cabin without opening the door.

Furthermore, sealing strips are laid at the joint of the cabin door and the joint of the cabin door and the cabin body framework, so that the sealing and heat insulation effects are achieved.

Further, the bulkhead is a containment plate arranged on the front side, the rear side, the left side and the right side of the cabin body, the containment plate is of a double-layer structure, and the interior of the containment plate is filled with heat-insulating materials. The double-layer structure can use a double-layer steel plate structure, the material is high-quality galvanized plate, the thickness of the inner layer is more than or equal to 1.2mm, and the thickness of the outer layer is more than or equal to 2mm; the continuous molding FRP composite material can also be used, and the structural form of the continuous molding FRP composite material is the same as that of a double-layer steel plate structure; the heat insulation material filled in the inner part is a fireproof heat insulation material permitted by a construction part, and the filling thickness is more than or equal to 45mm.

Further, the left side and the right side of the cabin body are respectively provided with an industrial air conditioner, an external ventilation air port with protective measures is arranged on a cabin wall above the industrial air conditioner, an air duct is arranged in the cabin body, and the air duct is arranged along the inner edge of the cabin body to avoid a frame in the cabin. The external ventilation air port with the protective measures can be reliably closed when not in work, and measures of dust prevention, small animal entering prevention, seepage prevention and rain water leakage prevention are adopted.

Compared with the prior art, the utility model has the beneficial effects that:

according to the installation structure of the secondary on-site equipment cabin of the transformer substation, provided by the utility model, the integrated prefabricated cabin is adopted, and the whole secondary equipment prefabricated cabin is integrally transported to an engineering site, so that the installation, wiring and construction of secondary equipment in the transformer substation are facilitated; compared with newly-built secondary equipment cells, the building area and the occupied area are reduced, the saving and the environmental protection are realized, a plurality of installation links in the construction process are omitted, and the link pollution is reduced; the device has the characteristics of convenient and quick installation and replacement and convenient external cable wiring, and is suitable for outdoor on-site installation occasions of electric power automation secondary equipment in a transformer substation;

the utility model can integrate and prefabricate the secondary equipment which needs to be installed in situ in the in-situ equipment prefabrication cabin, the secondary equipment is integrated and installed in factories and completes wiring, thereby being beneficial to integrating functions of the secondary equipment, improving the concentration and integration level of the equipment, effectively saving equipment and reducing field workload, and meeting the technical requirement of resource conservation;

the prefabricated cabin type combined secondary equipment changes the joint debugging mode, and utilizes the workshop joint debugging and the field debugging mode; simulating the designed operation condition in a workshop, completing the solidification work of SCD files of equipment such as total station five-prevention logic, signal point table naming and the like, and carrying out transmission verification between the equipment and the site;

the secondary cabin body is arranged in the distribution space in situ, so that the lengths of the secondary optical cable and the cable are reduced, the materials are saved, and the manufacturing cost is reduced;

the utility model changes the construction flow, changes the current serial construction mode into the parallel construction mode, saves more than sixty percent for the field debugging period;

the on-site equipment cabin installation structure can be used for installing screen assembly accessories such as an electric secondary intelligent device, a matched terminal block, an indicator lamp, an idle opening, a handle, an industrial air conditioner and the like, and the external dimension can be flexibly adjusted according to a specific matched interval and the safe clear distance of distribution equipment in a transformer substation; the in-situ equipment cabin is provided with perfect safety protection measures, has facilities such as illumination, overhaul and grounding, and ensures the safe operation of in-situ equipment cabin equipment and the requirements of personnel inspection.

Drawings

Fig. 1 is a schematic front structural view of a secondary in-situ equipment compartment installation structure of a transformer substation according to an embodiment of the present utility model;

FIG. 2 is a top perspective view of a secondary in-situ equipment bay mounting structure of a substation according to an embodiment;

fig. 3 is a schematic structural view of a cabin skeleton according to an embodiment;

FIG. 4 is a schematic view of a bulkhead according to an embodiment;

fig. 5 is a schematic diagram of an air conditioner and an air duct according to an embodiment.

In the figure: 1. a cabin skeleton; 11. a chassis; 12. a frame; 2. a top cover; 3. a cabin door; 31. an observation window; 4. a bulkhead; 5. an industrial air conditioner; 6. an optical cable interface rack; 7. an equipment rack; 8. a cable interface chassis; 9. and an air duct.

Detailed Description

The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

Examples

The secondary on-site equipment cabin installation structure of the transformer substation as shown in fig. 1 and 2 comprises a prefabricated cabin body, wherein the cabin body comprises a cabin body framework 1, a top cover 2, a cabin wall 4 and a cabin door 3 are installed on the cabin body framework 1, an intra-cabin frame is arranged in the cabin body framework 1, and the intra-cabin frame comprises an equipment frame 7, a cable interface frame 8 and an optical cable interface frame 6; the lifting point is arranged at the bottom of the prefabricated cabin body, so that the prefabricated cabin body is convenient to hoist.

The utility model is shown in the top perspective view in fig. 2, the front and rear of the cabin body are provided with the double-opening cabin door 3 which can be opened from the middle, and the cabin body can be conveniently accessed to the front of the equipment rack 7 for operation during debugging and maintenance. The cabin door adopts a double-layer steel plate structure, the material is preferably high-quality galvanized plate, the thickness of the inner door plate is more than or equal to 1.2mm, the thickness of the outer door plate is more than or equal to 2mm, and the flatness of the sealing surface is controlled within 0.75mm per meter. The cabin door hinge is a blind hinge and is made of stainless steel, so that no corrosion is caused at the movable part within the service life of the cabin body; the cabin door is provided with double-layer observation windows which are not smaller than 800 multiplied by 400 in size and meet the requirements of convenient inspection of the equipment in the cabin without opening the door.

The cabin interior frame is formed by cold bending a section bar or a thin plate, and is fixed with the underframe 11 of the cabin body framework 1 or integrally welded with the cabin body framework 1 through foundation bolts. The equipment rack 7 comprises a protection rack and a convergence control rack, the installation size of the equipment rack 7 in the width direction accords with the width size of a 19-inch series chassis and a panel, accords with the specification of GB/T19520.16, and is serialized according to the standard of 44.45mm (1U) in the height direction, so that the fixed installation of various rack-type secondary equipment is facilitated; the cable interface rack 8 is provided with a cable channel inlet and a cable channel outlet communicated with a cable trench in the station, communication cables and control cables in the cable interface rack 8 are separately laid, and the communication cables are provided with independent trunking; the signal interference to communication can be reduced by the arrangement of strong and weak current sub-slots; the optical cable interface frame 6 is provided with an optical cable wiring groove, the connection of the secondary equipment and the optical fibers outside the cabin adopts a prefabricated optical cable, and the optical cable interface frame 6 is internally provided with a fiber storage cabin for storing and fixing redundant tail cables and tail fibers in the cabinet. All cables are wired in the factory, and the cable which is taken out of the cabin can reserve the wiring position according to the long term.

As shown in fig. 3, the cabin skeleton 1 has a welded structure and comprises a chassis 11 and a frame 12, and the chassis 11 is integrally formed by welding the chassis skeleton and a chassis bed plate. The frame 12 is composed of upright posts, cross beams, door flanges, supporting beams, corner plates and accessories, each part is formed by welding high-quality galvanized steel plates, the thickness is more than or equal to 2.5mm, the integral strength and the rigidity are ensured, and deformation or damage is avoided during lifting, transportation and installation. A cabin bottom plate is paved above the underframe 11, cable threading holes are reserved in the bottom plate, and a ventilation area is not smaller than 80cm ² The vent is added with a stainless steel net for preventing animals. The typical cabin skeleton size of the proper project can be selected for production according to the field installation environment and construction conditions.

The bulkhead 4 in this embodiment is a containment plate arranged on the front, rear, left and right sides of the cabin body, as shown in fig. 4, two containment plates can be adopted, one containment plate is of a double-layer steel plate structure, the material is a high-quality galvanized plate, the thickness of the inner layer is more than or equal to 1.2mm, and the thickness of the outer layer is more than or equal to 2mm; a continuously formed FRP composite material has the same structural form as a double-layer steel plate structure. The two layers of the enclosing guard plates are filled with fireproof heat-insulating materials permitted by the construction part, and the filling thickness is more than or equal to 45mm.

In this embodiment, industrial air conditioners 5 are respectively arranged on the left and right sides of the cabin body, and an external ventilation air port with protective measures is arranged on a cabin wall 4 above the industrial air conditioners 5, and can be reliably closed when not working, and dustproof, anti-small animal entering, seepage-proof and rain-water leakage measures are adopted. An air duct 9 is also arranged in the cabin body, the arrangement of the air duct 9 in the cabin is shown in figure 5, and the effective ventilation sectional area is generally not less than 100cm ² The upper edge of the cabin body is arranged to meet the air output requirement of the external ventilation air outlet, and the centrally placed cabin frame is avoided.

The secondary on-site equipment cabin installation structure of the transformer substation can be used for placing equipment such as detection, control, adjustment and protection once, the cabin body structure reasonably selects structural types and framework materials, the requirements of strength, rigidity, stability, water resistance, fire resistance, corrosion resistance and durability and the like of the structure in transportation, installation and operation are guaranteed, and the design service life can reach 40 years.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.

Claims

1. The utility model provides a secondary on-the-spot equipment compartment mounting structure of transformer substation, its characterized in that includes prefabricated cabin body, the cabin body includes cabin body skeleton, install top cap, bulkhead and hatch door on the cabin body skeleton, be equipped with the cabin internal frame in the cabin body skeleton, the cabin internal frame includes equipment frame, cable interface frame and optical cable interface frame.

2. The secondary in-situ equipment compartment mounting structure of a substation of claim 1, wherein the compartment body framework comprises an integrally welded chassis and a frame, and the chassis is integrally formed by welding a chassis framework and a chassis floor; the frame consists of upright posts, cross beams, door flanges, supporting beams, corner plates and accessories.

3. The secondary on-site equipment compartment mounting structure of the transformer substation according to claim 1, wherein the cable interface rack is provided with a cable channel inlet and outlet communicated with a cable channel in the substation, communication cables and control cables in the cable interface rack are separately laid, and the communication cables are provided with independent trunking.

4. The secondary on-site equipment compartment mounting structure of the transformer substation according to claim 1, wherein the optical cable interface frame is provided with an optical cable wiring groove, and a fiber storage compartment is arranged inside the optical cable interface frame and is used for storing and fixing redundant tail cables and tail fibers in the cabinet.

5. The secondary on-site equipment compartment mounting structure of a transformer substation according to claim 1, wherein the in-compartment frame is formed by cold bending a section bar or a sheet, and is fixed with a chassis skeleton of a compartment skeleton or integrally welded with the compartment skeleton through foundation bolts.

6. The secondary on-site equipment compartment mounting structure of a substation of claim 1, wherein the roof is an integrated double-slope roof structure comprising a roof framework and a roof sealing plate, and the gradient of the double-slope roof structure is not less than 5 °.

7. The secondary on-site equipment compartment mounting structure of a transformer substation according to claim 1, wherein the compartment door is a double-opening compartment door capable of being opened from the middle, the compartment door is arranged on the compartment walls on the front side and the rear side of the compartment body, and the compartment door is provided with an observation window.

8. The secondary in-situ equipment compartment mounting structure of a transformer substation according to claim 7, wherein sealing strips are laid at the joint of the cabin door and the cabin body framework.

9. The secondary in-situ equipment compartment installation structure of a transformer substation according to claim 1, wherein the bulkhead is a containment plate arranged on the front side, the rear side, the left side and the right side of the cabin body, the containment plate is of a double-layer structure, and heat insulation materials are filled in the containment plate.

10. The secondary on-site equipment compartment mounting structure of a transformer substation according to claim 1, wherein industrial air conditioners are arranged on the left side and the right side of the compartment body, an external ventilation air port with protective measures is arranged on a compartment wall above the industrial air conditioners, an air duct is arranged in the compartment body, and the air duct is arranged along the inner edge of the compartment body to avoid a frame in the compartment.