Compact 10kV box-type substation
By adopting a combined roof structure of sandwich composite board and resin tiles in a compact 10kV box substation, combined with cooling measures of fans and temperature sensors, the problem of insufficient damage and exposure resistance of transformers in high-temperature environments is solved, and the substation is realized Highly efficient heat insulation and cooling effect.
Patent Information
- Application Number
- CN202323500553.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-21
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2033-12-21
AI Technical Summary
The compact 10kV box substation is prone to damage to the transformer in high temperature environments, and has insufficient anti-exposure ability, so it cannot be used in high temperature environments in summer for a long time.
A compact 10kV box substation was designed, using a combined top cover structure of sandwich composite panel top cover and resin tile top cover to form a top gap to improve heat insulation effect, and achieve strong air exhaust through the cooperation of the fan and the temperature sensor. Cool down to avoid overheating of the transformer.
It effectively avoids damage to the transformer due to long-term high-temperature environment, improves the substation's exposure resistance and enables it to be used in high-temperature environments in summer for a long time.
Smart Images
Figure CN222484096U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of box-type transformer substation structure, in particular to a compact 10kV box-type transformer substation. Background Art
[0002] The 10kV box-type substation integrates 10kV switchgear, transformer, and 400V low-voltage cabinet to form a complete power distribution unit with voltage levels from 10kV to 400V. The 10kV box-type substation can be factory-produced and quickly installed at the site of use. It can be powered on after a small amount of external wiring construction. The 10kV box-type substation is used for terminal power distribution of the power system with the advantages of simplicity, speed, and investment saving.
[0003] Conventional 10kV box-type substations are generally divided into three functional compartments in terms of structural layout: high-voltage room, transformer room, and low-voltage room. This type of 10kV box-type substation has a larger size, and the box material and busbar usage are correspondingly large. In addition, large-sized 10kV box-type substations will also increase civil construction costs. Although making the size of conventional 10kV box-type substations smaller can reduce the busbar usage and reduce civil construction costs, the working temperature rise in this compact 10kV box-type substation is difficult to solve. Once the temperature in the compact 10kV box-type substation rises, the transformer in the compact 10kV box-type substation will be damaged due to long-term operation in a high-temperature environment.
[0004] In addition, this compact 10kV box-type substation has insufficient resistance to sunlight exposure, that is, the solar radiation heat affects the internal components of the compact 10kV box-type substation, so it cannot be exposed to the high temperature environment in summer for a long time.
[0005] Therefore, there is an urgent need for a compact 10kV box-type substation that can avoid transformer damage and improve the ability to resist exposure to sunlight. Utility Model Content
[0006] The utility model aims to overcome the shortcomings of the prior art and provide a compact 10kV box-type substation which can avoid transformer damage and improve the ability to resist exposure to sunlight.
[0007] The purpose of the utility model is achieved through the following technical solutions: a compact 10kV box-type substation, which includes a shell fixedly mounted on a bottom frame, a top frame fixedly mounted on the top of the shell, a partition fixedly mounted in the shell, the partition separates the chamber of the shell into a transformer room and an electrical equipment room, a transformer and a fan are arranged in the transformer room, the transformer is installed at the bottom of the transformer room, the fan is arranged above the transformer and fixedly mounted on the rear side wall of the transformer room, and a temperature sensor is arranged in the transformer room; a bottom frame ventilation window is arranged directly below the transformer, the bottom frame ventilation window is arranged on the bottom frame, and a door ventilation window is arranged on the transformer room door of the transformer room, wherein the bottom frame ventilation window and the door ventilation window both serve as inlets for external cold air;
[0008] The electrical equipment room is provided with a high-voltage switch cabinet and a low-voltage switch cabinet, and the high-voltage main busbar of the high-voltage switch cabinet and the low-voltage main busbar of the low-voltage switch cabinet are both connected to the transformer;
[0009] A plurality of brackets arranged from left to right are fixedly arranged on the top surface of the top frame, a top cover is fixedly arranged on the bracket, the top cover comprises a sandwich composite board top cover and a resin tile top cover fixedly arranged on the bracket in sequence, a transformer room top gap is formed between the sandwich composite board top cover and the top opening of the transformer room, a electrical equipment room top gap is formed between the sandwich composite board top cover and the top opening of the electrical equipment room, and a plurality of diversion holes connecting the transformer room top gap and the electrical equipment room top gap are opened in the bracket;
[0010] An exhaust hole is formed between the top frame and the outer edge of the sandwich composite panel top cover, and the top gap of the transformer room and the top gap of the electrical equipment room are both connected to the exhaust hole.
[0011] The low-voltage switch cabinet comprises a low-voltage incoming line cabinet, a low-voltage capacitor cabinet and a low-voltage outgoing line cabinet.
[0012] The housing is provided with an electrical equipment room door located in the electrical equipment room.
[0013] The high-voltage switch cabinet and the low-voltage switch cabinet form an operation and maintenance channel in the electrical equipment room, and the staff can complete the inspection and maintenance work on the high-voltage switch cabinet and the low-voltage switch cabinet through the operation and maintenance channel.
[0014] The transformer room is provided with a grounding bar and a neutral bar.
[0015] The transformer room is also provided with a controller, which is electrically connected to the fan and the temperature sensor.
[0016] The utility model has the following advantages: it can avoid transformer damage and improve the ability to resist exposure to sunlight. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the front structure of the utility model;
[0018] Figure 2 for Figure 1 A top sectional view of
[0019] Figure 3 for Figure 2 AA section view;
[0020] Figure 4 for Figure 2 BB cross-sectional view;
[0021] In the figure:
[0022] 1- bottom frame, 2- shell, 3- door ventilation window, 4- transformer room door, 5- top frame, 6- top cover, 7- electrical equipment room door, 8- transformer room, 9- transformer, 10- bottom frame ventilation window, 11- high voltage main busbar, 12- partition, 13- high voltage switch cabinet, 14- operation and maintenance channel, 15- inspection port, 16- electrical equipment room, 17- low voltage switch cabinet, 18- low voltage main busbar, 19- busbar clamp, 20- fan, 21- transformer room top gap, 22- bracket, 23- electrical equipment room top gap, 24- diversion hole, 25- resin tile top cover, 26- sandwich composite board top cover, 27- exhaust hole. 28- grounding bar, 29- zero bar. DETAILED DESCRIPTION
[0023] The utility model is further described below in conjunction with the accompanying drawings, and the protection scope of the utility model is not limited to the following:
[0024] like Figure 1~Figure 4 As shown, a compact 10kV box-type substation comprises a shell 2 fixed on a bottom frame 1, a top frame 5 fixed on the top of the shell 2, a partition 12 fixed in the shell 2, the partition 12 divides the chamber of the shell 2 into a transformer chamber 8 and an electrical equipment chamber 16, a transformer 9 and a fan 20 are arranged in the transformer chamber 8, a busbar clamp 19 is also arranged in the transformer chamber 8, a grounding bar 28 and a zero bar 29 are arranged in the transformer chamber 8, the transformer 9 is installed at the bottom of the transformer chamber 8, the fan 20 is arranged above the transformer 9 and fixed on the rear side wall of the transformer chamber 8, and a temperature sensor is arranged in the transformer chamber 8; a bottom frame ventilation window 10 is arranged directly below the transformer 9, the bottom frame ventilation window 10 is arranged on the bottom frame 1, and a door ventilation window 3 is arranged on the transformer chamber door 4 of the transformer chamber 8, wherein the bottom frame ventilation window 10 and the door ventilation window 3 both serve as the inlet of external cold air; a controller is also arranged in the transformer chamber 8, and the controller is electrically connected to the fan 20 and the temperature sensor.
[0025] A high-voltage switch cabinet 13 and a low-voltage switch cabinet 17 are arranged in the electrical equipment room 16. The low-voltage switch cabinet 17 includes a low-voltage incoming line cabinet, a low-voltage capacitor cabinet and a low-voltage outgoing line cabinet. The high-voltage main busbar 11 of the high-voltage switch cabinet 13 and the low-voltage main busbar 18 of the low-voltage switch cabinet 17 are both connected to the transformer 9.
[0026] A plurality of brackets 22 arranged from left to right are fixedly provided on the top surface of the top frame 5, and a top cover 6 is fixedly provided on the bracket 22. The top cover 6 includes a sandwich composite panel top cover 26 and a resin tile top cover 25 fixedly provided on the bracket 22 in sequence. The sandwich composite panel top cover 26 mainly plays a heat-insulating role, and the sunlight radiation heat will not affect the internal components of the compact 10kV box-type substation, so that it can be exposed to the high temperature environment in summer for a long time. A transformer room top gap 21 is formed between the sandwich composite panel top cover 26 and the top opening of the transformer room 8, and an electrical equipment room top gap 23 is formed between the sandwich composite panel top cover 26 and the top opening of the electrical equipment room 16. A plurality of diversion holes 24 connecting the transformer room top gap 21 and the electrical equipment room top gap 23 are provided in the bracket 22; the resin tile top cover 25 plays a waterproof and beautifying role.
[0027] An exhaust hole 27 is formed between the top frame 5 and the outer edge of the sandwich composite panel top cover 26, and the top gap 21 connecting the transformer room and the top gap 23 of the electrical equipment room are both connected to the exhaust hole 27. The outer shell 2 is provided with an electrical equipment room door 7 located at the front side of the electrical equipment room 16. The high-voltage switch cabinet 13 and the low-voltage switch cabinet 17 form an operation and maintenance channel 14 in the electrical equipment room 16, and the staff can complete the inspection and maintenance work of the high-voltage switch cabinet 13 and the low-voltage switch cabinet 17 through the operation and maintenance channel 14. The operation and maintenance channel 14 is provided with an inspection port 15 near the outer shell, and the staff can enter the box-type substation through the inspection port 15 to carry out inspection and maintenance work.
[0028] The working process of the utility model is as follows:
[0029] When the workload of the transformer 9 is not large, the temperature in the transformer chamber 8 is not high, the temperature has not reached the set value of the temperature sensor, and the temperature sensor does not send any signal to the controller. At this time, natural ventilation is mainly used to cool the transformer chamber 8. At this time, external cold air enters the transformer chamber 8 from the bottom frame ventilation window 10 and the door ventilation window 3. The cold air takes away the heat and rises to the top gap 21 of the transformer chamber. The heat is discharged to the outside through the exhaust hole 27 connected to the top gap 21 of the transformer chamber. At the same time, another part of the heat is diffused to the top gap 23 of the electrical equipment room through the guide hole 24, and this part of the heat is discharged to the outside through the exhaust hole 27 connected to the top gap 23 of the electrical equipment room.
[0030] When the load of the transformer 9 increases, the temperature in the transformer chamber 8 rises, and the temperature cannot be reduced to a suitable value by natural ventilation measures. When the temperature reaches the set value of the temperature sensor, the temperature sensor sends an electrical signal to the controller, and the controller controls the fan 20 to start, and the fan 20 exhausts air into the transformer chamber 8. The temperature in the transformer chamber 8 is reduced by forced exhaust, thereby effectively avoiding the damage of the transformer 9 due to long-term operation in a high temperature environment, thereby extending the service life of the transformer 9.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A compact 10 kV box-type substation, comprising a housing (2) fixedly mounted on a bottom frame (1), and a top frame (5) fixedly mounted on the top of the housing (2), characterized in that: A partition (12) is fixedly provided in the housing (2), the partition (12) dividing the chamber of the housing (2) into a transformer chamber (8) and an electrical equipment chamber (16), a transformer (9) and a fan (20) are provided in the transformer chamber (8), the transformer (9) is installed at the bottom of the transformer chamber (8), the fan (20) is arranged above the transformer (9) and fixedly provided on the rear side wall of the transformer chamber (8), and a temperature sensor is provided in the transformer chamber (8); a bottom frame ventilation window (10) is provided directly below the transformer (9), the bottom frame ventilation window (10) is provided on the bottom frame (1), and a door ventilation window (3) is provided on the transformer chamber door (4) of the transformer chamber (8), wherein the bottom frame ventilation window (10) and the door ventilation window (3) both serve as inlets for external cold air; A high-voltage switch cabinet (13) and a low-voltage switch cabinet (17) are arranged in the electrical equipment room (16); the high-voltage main busbar (11) of the high-voltage switch cabinet (13) and the low-voltage main busbar (18) of the low-voltage switch cabinet (17) are both connected to the transformer (9); A plurality of brackets (22) arranged from left to right are fixedly provided on the top surface of the top frame (5); a top cover (6) is fixedly provided on the bracket (22); the top cover (6) comprises a sandwich composite board top cover (26) and a resin tile top cover (25) fixedly provided on the bracket (22) in sequence; a transformer chamber top gap (21) is formed between the sandwich composite board top cover (26) and the top opening of the transformer chamber (8); an electrical equipment chamber top gap (23) is formed between the sandwich composite board top cover (26) and the top opening of the electrical equipment chamber (16); a plurality of guide holes (24) are provided in the bracket (22) to connect the transformer chamber top gap (21) and the electrical equipment chamber top gap (23); An exhaust hole (27) is formed between the top frame (5) and the outer edge of the sandwich composite panel top cover (26); the top gap (21) of the transformer room and the top gap (23) of the electrical equipment room are both in communication with the exhaust hole (27); the low-voltage switch cabinet (17) comprises a low-voltage incoming line cabinet, a low-voltage capacitor cabinet and a low-voltage outgoing line cabinet; the housing (2) is provided with an electrical equipment room door (7) located at the front side of the electrical equipment room (16); the high-voltage switch cabinet (13) and the low-voltage switch cabinet (17) form an operation and maintenance channel (14) in the electrical equipment room (16), and staff can complete inspection and maintenance work on the high-voltage switch cabinet (13) and the low-voltage switch cabinet (17) through the operation and maintenance channel (14).
2. A compact 10kV box-type substation according to claim 1, characterized in that: A grounding row (28) and a neutral row (29) are provided in the transformer chamber (8).
3. A compact 10kV box-type substation according to claim 1, characterized in that: A controller is also provided in the transformer chamber (8), and the controller is electrically connected to the fan (20) and the temperature sensor.