CN209730618U - A new box type substation structure - Google Patents

Abstract

The utility model relates to box-type substation technical fields, provide a kind of novel box type transformer station structure, the utility model passes through case, cabinet, bus bridge is an integral structure design arrangement, main components of high pressure in distributing function unit are each attached on the inner wall side of cabinet, it is compact-sized, the dosage of plate and profile is few, high-voltage board is hung in one by one in case change without boom hoisting, reduce manually installed workload, it crosses to energy-saving purpose, and the high pressure component in high-tension switch cabinet is not one enclosure interior of installation, and it is distributed across case and becomes on the different position of enclosure interior, but each functional unit can complete its independent distributing function again, the design of this structure can greatly reduce the weight of box-type substation, simplify the inside splicing of switchgear, lifting, the workloads such as installation, facilitate fortune It is defeated, become energy-saving type product, cost also will be greatly reduced.

Description

A new box type substation structure

technical field

The invention relates to the technical field of box-type substations, in particular to a novel box-type substation structure.

Background technique

With the development of the market economy, the country requires high voltage to directly enter the load center in the construction and transformation of urban and rural power grids, forming a power supply pattern of high-voltage power receiving-transformer step-down-low-voltage power distribution, so power supply and distribution must be land-saving and power-saving , Compact, miniaturized, and unattended, the box-type substation (box-type substation for short) is the best product with these characteristics, so it is widely used in urban and rural power grids.

Secondly, with the acceleration of social development and urbanization, the load density is getting higher and higher, and the urban land is becoming more and more tense. The urban distribution network is gradually transitioning from overhead to cable, and distribution transformers installed on poles are becoming more and more unsuitable. people's demands. Therefore, the prefabricated substation has become one of the main power distribution equipment. Again, people have higher and higher requirements for power supply quality, especially power supply reliability, and prefabricated substations with advanced technologies such as high-voltage ring network or dual power supply, and low-voltage network automatic switching have become the preferred power distribution equipment.

In the existing technology, the box-type substation makes full use of its internal space to form a compact arrangement, but the degree of space utilization is not perfect enough, and this scheme is improved to integrate the shell of the high-voltage switchgear functional unit with the box-type substation. For the integrated structure, the high-voltage components in the high-voltage switchgear are not installed inside a shell, but distributed in different positions inside the box transformer shell, but each functional unit can complete its independent power distribution function, so as to In order to improve the reasonable utilization rate, on the one hand, this structure can save the use of plates and profiles between the switch cabinets and save costs; on the other hand, the design of this structure can greatly reduce the weight of the box-type substation and simplify the switch cabinet. The workload of internal splicing, hoisting, installation, etc. is convenient for transportation, and it becomes an energy-saving and consumption-reducing product, and the cost of construction will be greatly reduced.

Contents of the invention

The purpose of the present invention is to provide a new box-type substation structure, which reduces the workload of manual installation, saves energy and reduces consumption, and at the same time greatly reduces the weight of the box-type substation, and simplifies the internal splicing, hoisting, and installation of switch cabinets. Installation and other workload, convenient transportation, become an energy-saving and consumption-reducing product, and the purpose of reducing the cost of construction.

In order to achieve the above purpose, the present invention provides the following technical solutions: a new box-type substation structure, including a substation box, a switch cabinet, high-voltage components, substation components, low-voltage components, a bus bridge, a grounding protection device, a box Cover, monitoring system, fire protection system, corridor, channel steel chassis, base, lifting ring, concrete foundation base, foundation ventilation window, external metering box, louvers, axial flow fan and lighting device, the bottom of the switchgear and the groove The top of the steel base frame is connected by bolts, the bottom of the channel steel base frame is connected with the bottom of the inner wall of the transformation box, and the mounting frame on one side of the high-voltage components, the transformation components and the low-voltage components is respectively connected to the The inner wall of the switch cabinet is connected, the high-voltage components, power transformation components and low-voltage components are electrically connected through a bus bridge, the switch cabinet is electrically connected to the grounding protection device through wires, and the bottom of the box cover The surroundings are connected with the surroundings of the top of the transformation box. The monitoring system and the fire protection system are located on the top of the inner wall of the transformation box. The bottom of the inner wall of the transformation box is painted with a waterproof oil glue layer. The middle position of the opposite side of the two switch cabinets, the bottom of the transformation box is connected to the top of the base, the surroundings of the base are respectively connected to one side of the four lifting rings, and the top of the concrete base is connected to the top of the base. The bottom is connected, the basic ventilation window is located on the concrete base, the external metering box is located at the bottom of the right side of the transformer box, the louvers are located around the transformer box, and the louvers pass through the air duct and the axial flow fan. The output end is connected, the axial flow fan is connected to the inner wall of the transformation box through the installation hanger, the top of the lighting device is connected to the top of the inner wall of the transformation box, and the lighting device is located directly above the corridor.

Preferably, the switch cabinet includes a high-voltage room, a transformer room and a low-voltage room, and the high-voltage room, the transformer room and the low-voltage room are all located inside the switch cabinet, and the high-voltage room, the transformer room and the low-voltage room are distributed in a zigzag shape .

Preferably, the substation box adopts interlayer color steel plates, and the middle of the interlayer color steel plates is filled with high-strength polyurethane.

Preferably, the outer surface of the base is sprayed with zinc, and the top of the base is provided with a rubber pad.

Preferably, the inside of the louvers is provided with a dust-proof net, and the number of louvers is at least three.

Preferably, the top of the box cover is provided with a rain gutter, and the shape of the rain gutter is arc.

The invention provides a novel box-type substation structure. Has the following beneficial effects:

(1) In the present invention, the box, cabinet, and busbar bridge are all designed and arranged in one-piece structure, and the main high-voltage primary components in the power distribution functional unit are all fixed on the side of the inner wall of the box body, with a compact structure and the use of plates and profiles The quantity is small, no lifting device is needed to hoist the high-voltage cabinets into the box transformer one by one, which reduces the workload of manual installation and achieves the purpose of saving energy and reducing consumption, and the high-voltage components in the high-voltage switchgear are not installed inside a shell , but distributed in different positions inside the box-type substation, but each functional unit can complete its independent power distribution function. The design of this structure can greatly reduce the weight of the box-type substation and simplify the interior of the switch cabinet. The workload of splicing, hoisting, and installation is convenient for transportation, and it becomes an energy-saving and consumption-reducing product, and the cost of construction will be greatly reduced.

(2) In the present invention, the box cover is decorated with materials such as stainless steel cover plates, and the protection level reaches IP4X. At the same time, an LED lighting system is also used inside the box substation, and there are air conditioning systems, fire protection systems, background monitoring systems, etc., and the box substation High safety and complete functions. As the door of the high-voltage switchgear, the door of the box-type substation is equipped with a "five-proof" interlocking mechanism.

Description of drawings

Fig. 1 is a sectional structural diagram of a switch cabinet box type substation of the present invention;

Fig. 2 is the front sectional view of structure transformation box body of the present invention;

Fig. 3 is a schematic front view of the switchgear with the structure of the present invention.

In the figure: 1 Transformer box, 2 Switchgear, 3 High voltage components, 4 Transformer components, 5 Low voltage components, 6 Bus bridge, 7 Grounding protection device, 8 Box cover, 9 Monitoring system, 10 Fire protection system, 11 corridor, 12 channel steel chassis, 13 waterproof oil glue layer, 14 base, 15 lifting ring, 16 concrete base, 17 basic ventilation window, 18 external metering box, 19 blinds, 20 axial fan, 21 lighting device, 210 high voltage room, 211 transformer room, 212 low voltage room.

Detailed ways

As shown in Figures 1-3, the present invention provides a technical solution: a new box-type substation structure, including a substation box 1, a switch cabinet 2, a high-voltage component 3, a substation component 4, and a low-voltage component 5 , busbar bridge 6, grounding protection device 7, box cover 8, monitoring system 9, fire protection system 10, corridor 11, channel steel chassis 12, base 14, lifting ring 15, concrete foundation base 16, foundation ventilation window 17, exterior installation Metering box 18, louvers 19, axial flow fan 20 and lighting device 21, the switch room and control room of the substation box 1 use high elastic sealing strips to make the box dustproof, moisture-proof, and condensation-proof, and the rainfall in the south is relatively low. Large, in terms of rain protection, the substation box adopts a unique labyrinth rainproof edge design above the gate. The top of the substation box 1 has a slope greater than 10°. There is a rainproof frame on the exposed air conditioner, and a rainproof frame on the door frame Double-layer sealing strips are embedded on it, the bottom of the switch cabinet 2 is fixedly connected to the top of the channel steel chassis 12 by bolts, the bottom of the channel steel chassis 12 is fixedly connected to the bottom of the inner wall of the transformer box 1, and the high-voltage components 3 , the mounting frame on one side of the transformer component 4 and the low-voltage component 5 are respectively fixedly connected to the inner side wall of the switch cabinet 2 through bolts, and the high-voltage component 3, the transformer component 4 and the low-voltage component 5 are connected through a bus bridge 6 Electrically connected, the switchgear 2 is electrically connected to the grounding protection device through wires, the surroundings of the bottom of the box cover 8 are fixedly connected with the surroundings of the top of the transformer box 1, and the monitoring system 9 and the fire protection system 10 are located on the inner wall of the transformer box 1 The bottom of the inner wall of the transformer box 1 is painted with a waterproof oil glue layer 13. The corridor 11 is located in the middle of the opposite sides of the two switch cabinets 2. The width of the corridor 11 should be 800mm or greater for easy maintenance. Maintenance and other operations, the bottom of the substation box 1 is fixedly connected to the top of the base 14, the surroundings of the base 14 are respectively fixedly connected to one side of the four lifting rings 15, the top of the concrete base 16 is fixedly connected to the bottom of the base 14, The basic ventilation window 17 is located on the concrete base 16, the external metering box 18 is located at the bottom of the right side of the transformer box 1, and the shutters 19 are located around the transformer box 1, and the shutters 19 pass through the air duct and the axial flow fan 20. The output end is connected, and the axial flow fan 20 is fixedly connected to the inner wall of the transformer box 1 through the installation hanger. structure, the box cover 8 can be designed as an air building structure with air cushion or heat insulation material, with a ventilation channel inside, equipped with an automatic forced exhaust ventilation device, an axial flow fan 20 or a format fan, the opening and stopping of the device is controlled by the transformer The temperature monitoring device in the room is self-controlled, and its temperature setting value is set according to 80% to 90% of the allowable temperature. Under normal indoor temperature, natural ventilation is used to dissipate heat. For ventilation, louvers 19 are set on the box of the transformer room. The airflow can go in, and the dust is separated to prevent the influence of dust on the insulation. When the indoor temperature is abnormal, mechanical forced ventilation is used. The temperature of the transformer oil does not exceed 95 degrees Celsius as the action setting value. The mechanical forced ventilation uses a format fan. Without axial fan 20. Due to the uneven heat dissipation of the inner and outer sides of the transformer heat sink by the axial flow fan 20, the outer heat dissipation is often better than the inner heat dissipation, while the air outlet of the format fan blows the inner and outer sides evenly, and the ventilation and heat dissipation effect is better. To ensure that the transformer box The temperature inside body 1 can generally be installed with two dual-temperature air conditioners, and an automatic temperature controller is used to control the temperature inside the box to ensure that the equipment in the box 1 works under normal environmental conditions, and there is condensation in the box And temperature controllers, smoke alarms, dual-temperature air conditioners, heaters and other equipment. When the environmental parameters exceed the limit, the relevant equipment will automatically start to ensure that the environment in the box is suitable. The top of the lighting device 21 and the inner wall of the transformer box 1 The top is fixedly connected, and the lighting device 21 is located directly above the corridor 11. The switchgear 2 includes a high-voltage room 210, a transformer room 211 and a low-voltage room 212, and all accessories such as bushings, partitions, valves, and insulating parts in the switchgear 2 It should be made of fire-resistant and flame-retardant materials. At the same time, the switchgear 2 should be made of cold-rolled steel plate or aluminum-zinc coated plate. , to improve the performance of "three defenses". The high-voltage chamber 210 is generally composed of a high-voltage load switch, a high-voltage fuse, and a lightning arrester. It can perform power-off and transmission operations and has overload and short-circuit protection. Composed of transformers, ammeters, voltmeters, etc., in order to reliably meet the five-proof requirements, mechanical interlocking is adopted between the electrical components, and each electrical component is installed on a structure with sufficient strength and rigidity to facilitate the connection of wires. The operation adopts electric mode, no additional power supply is required, it can be led out from TV, and it also has the functions of electric energy detection, display, and measurement, and can realize corresponding protection functions. There is no special grounding guide, and there are obvious In addition, in order to adapt to the outdoor working environment, the box cover 8 generally adopts a compartment structure with heat insulation materials inside. There are cooling air inlets and outlets at the bottom of the substation box 1 and between each room, and natural air cooling and automatic cooling are adopted. Controlled forced air cooling and other forms to ensure the normal heat dissipation of electrical equipment, with measures to prevent rain, dust, and small animals from entering. The protection system adopts the substation microcomputer integrated automation device and is installed in a decentralized manner, which can realize "four "Remote", that is, telemetry, remote signaling, remote control, remote adjustment, each unit has an independent operation function, complete relay protection functions, remote setting of operating parameters, control of humidity and temperature in the cabinet, to meet unattended requirements, the high voltage room 210, the transformer room 211 and the low voltage room 212 are located inside the switchgear 2, and the high voltage room 210, the transformer room 211 and the low voltage room 212 are distributed in the shape of a word, and the high voltage room 201, the transformer room 211 and the The three compartments of the low-voltage room 212 can be arranged according to the "mesh shape", which is more convenient for wiring. The surface is treated with metal spraying zinc, and the top of the base 14 is provided with a rubber pad, and the inside of the shutter 19 is provided with a dust-proof net, and the number of the shutter 19 is at least three, and the top of the box cover 8 is provided with a rain gutter, and the rain The shape of the water tank is arc-shaped, and the present invention can also realize intelligentization of the inside of the substation box 1. Due to the development of informatization, networking and intelligent residential quarters, not only the box substation is required to be safe and reliable, but also the "four remotes" are required. ", both the intelligent functions of telemetry, telecommunication, remote adjustment and remote control. When this kind of smart box-type substation is powered by the ring network, with the cooperation of specific independent software, it can complete the automatic positioning of the fault section, fault removal, load transfer, network Refactoring and other functions, so as to ensure that the power supply will be restored within a minute or so.

To sum up, it can be obtained that the present invention adopts the integrated structural design and arrangement of the box, cabinet, and busbar bridge 6, and the primary high-voltage components in the power distribution functional unit are all fixed on the side of the inner wall of the box body, and the structure is compact, and the plates and profiles The consumption is less, no lifting device is needed to hoist the high-voltage cabinets into the box transformer one by one, which reduces the workload of manual installation and achieves the purpose of energy saving and consumption reduction, and the high-voltage components in the high-voltage switch cabinet are not installed in a shell Inside, it is distributed in different positions inside the box-type substation, but each functional unit can complete its independent power distribution function. The design of this structure can greatly reduce the weight of the box-type substation and simplify the installation of the switchgear. The workload of internal splicing, hoisting, and installation is convenient for transportation, and it becomes an energy-saving and consumption-reducing product. The interior also adopts LED lighting system, equipped with air conditioning system, fire protection system, background monitoring system and other supporting facilities. The box substation has high safety and complete functions. The door of the box substation is used as the door of the high-voltage switch cabinet and is equipped with "five-proof" interlocking Mechanism, at the same time has anti-theft, anti-pry, moisture-proof, anti-rust and other functions, high safety and reliability.

Claims (6)

1. A new box-type substation structure, including a substation box (1), a switchgear (2), a high-voltage component (3), a substation component (4), a low-voltage component (5), and a bus bridge ( 6), ground protection device (7), box cover (8), monitoring system (9), fire protection system (10), corridor (11), channel steel chassis (12), base (14), lifting ring (15 ), concrete base (16), foundation ventilation window (17), external metering box (18), louvers (19), axial flow fan (20) and lighting device (21), it is characterized in that: the switchgear The bottom of (2) is connected with the top of the channel steel underframe (12) by bolts, the bottom of the channel steel underframe (12) is connected with the bottom of the inner wall of the transformer box body (1), and the high voltage components (3 ), the mounting frame on one side of the transformer components (4) and the low-voltage components (5) are respectively connected to the inner side wall of the switch cabinet (2) by bolts, and the high-voltage components (3), the transformer components (4 ) and the low-voltage components (5) are electrically connected through the bus bridge (6), the switchgear (2) is electrically connected to the grounding protection device through wires, and the surroundings of the bottom of the box cover (8) are connected to the substation The surroundings of the top of the box body (1) are connected, the monitoring system (9) and the fire protection system (10) are located on the top of the inner wall of the transformer box body (1), and the bottom of the inner wall of the transformer box body (1) is painted There is a waterproof oil glue layer (13), the corridor (11) is located in the middle of the opposite sides of the two switch cabinets (2), the bottom of the transformation box (1) is connected to the top of the base (14), The surroundings of the base (14) are respectively connected to one side of four hoisting rings (15), the top of the concrete base (16) is connected to the bottom of the base (14), and the base ventilation window (17) is located at On the concrete base (16), the external metering box (18) is located at the bottom of the right side of the transformer box (1), and the shutters (19) are positioned around the transformer box (1), and the shutters ( 19) Communicate with the output end of the axial flow fan (20) through the air duct, the axial flow fan (20) is connected to the inner wall of the transformer box (1) through the installation hanger, and the top of the lighting device (21) It is connected with the top of the inner wall of the transformation box body (1), and the lighting device (21) is located directly above the corridor (11). 2. A novel box-type substation structure according to claim 1, characterized in that: the switchgear (2) includes a high-voltage room (210), a transformer room (211) and a low-voltage room (212), the The high-voltage room (210), the transformer room (211) and the low-voltage room (212) are all located inside the switchgear (2), and the high-voltage room (210), the transformer room (211) and the low-voltage room (212) are in the shape of a word distributed. 3. A novel box-type substation structure according to claim 1, characterized in that: the substation box body (1) is made of interlayer color steel plates, and the middle of the interlayer color steel plates is filled with high-strength polyurethane. 4. A novel box-type substation structure according to claim 1, characterized in that: the outer surface of the base (14) is sprayed with zinc, and the top of the base (14) is provided with a rubber pad. 5. A novel box-type substation structure according to claim 1, characterized in that: said louvers (19) are provided with dust-proof nets inside, and the number of louvers (19) is at least three. 6. A novel box-type substation structure according to claim 1, characterized in that: the top of the box cover (8) is provided with a rain gutter, and the shape of the rain gutter is arc-shaped.