Power distribution system

Abstract

The utility model relates to an electric power distribution system, which comprises a first frame and a second frame which are arranged side by side at an interval, a power distribution module arranged on the first frame and an uninterruptible power supply module arranged on the second frame, and is characterized in that the power distribution module comprises a transformer, a low-voltage wire inlet cabinet and a low-voltage wire outlet cabinet; the uninterruptible power supply module is electrically connected with the power distribution module, the uninterruptible power supply module comprises a UPS host, a UPS storage battery, a UPS wire inlet cabinet and a UPS wire outlet cabinet, the top of the first frame is provided with a first shelf used for laying cables, the top of the second frame is provided with a second shelf used for laying cables, and the UPS host is electrically connected with the UPS storage battery. And a connecting bracket for a cable to pass through is also connected between the first shelf and the second shelf. The uninterruptible power supply system has the advantages that the heat dissipation effect of the uninterruptible power supply module and the whole system is ensured, overheating faults caused by poor heat dissipation are reduced, the stability of the whole system is ensured, the field work amount can be reduced, the overall delivery efficiency of a project is improved, and the time cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to power distribution system technical field especially relates to a prefabricated power distribution system. BACKGROUND

[0002] The power distribution system refers to the voltage transformation and direct distribution of electric energy to the terminal user of a power network system composed of various distribution equipment (or elements) and distribution facilities, and the main function is to change the high-voltage power supply into low-voltage power supply suitable for customer end through the transformer for distribution. The power distribution system generally includes transformer, low-voltage incoming line cabinet, outgoing line cabinet, UPS power cabinet, etc.

[0003] But the existing power distribution system is mainly used for on-site power supply, and is a power equipment widely used in city network construction and transformation of power system, but the traditional power distribution system is not flexible enough, and needs to be separately provided with a power distribution room or an outdoor installation equipment room, which not only occupies a large area, but also takes a long time, therefore, a container type substation is also designed, and the modular container substation mainly adopts a special container, and the traditional American or European box type substation is only provided with high and low voltage cabinets, and the function is relatively single, and the heat dissipation performance and safety performance are relatively insufficient, and high load work is easy to cause short circuit and fire, and there is a great safety hazard, and it is not convenient to maintain.

[0004] In order to solve the above technical problems, the container type substation is disclosed in Chinese utility model patent application No. CN202120626849.5 (authorized announcement No. CN214850042U), which comprises a box body and a manhole opening on the surface of the box body, the box body is divided into a power distribution cabinet and a fixed partition cabinet, a fireproof partition plate is installed between the power distribution cabinet and the fixed partition cabinet, a high-voltage load switch cabinet, a transformer cabinet, an incoming line cabinet, a contact cabinet, a capacitor compensation cabinet, an active filter cabinet and an outgoing line cabinet are installed in the power distribution cabinet in sequence, a cooling device and a fire-fighting device are installed on the inner wall of the power distribution cabinet, a UPS power cabinet is installed in the fixed partition cabinet, a ventilation and heat dissipation window is opened on the outer side of the box body, and a rainproof shutter is installed on the ventilation and heat dissipation window. The transformer and the UPS power supply are separated by the fireproof partition plate, which improves the functional structure of the box type substation and ensures its safety; the cooling device, the fire-fighting device and the emergency lighting lamp ensure the safety of the box type substation and improve its service life.

[0005] However, the container-type substation in the above patent application still has some shortcomings: although the fireproof partition plate in the above patent application separates the transformer and the UPS power supply, they are still centrally arranged in one box, and this structure design still has the following problems: the first is the heat dissipation problem. The UPS power supply generates a large amount of heat during operation. If it is integrated with other devices, it may be limited by space, leading to poor heat dissipation. This not only reduces the working efficiency of the UPS power supply, but also may cause overheating failure, affecting the stability of the entire system. The second is the difficulty of maintenance. Integrating the UPS power supply with other devices increases the difficulty of maintenance. During maintenance, the entire system or power may need to be turned off, which will seriously affect the normal operation of the substation. The third is poor scalability. When the power capacity of the UPS power supply unit needs to be increased, the entire system may need to be redesigned, which will increase the cost and complexity.

[0006] Therefore, the existing power distribution system still needs to be further improved. Content of the utility model

[0007] The utility model solves the technical problem to be solved for the present situation of the prior art, provides a kind of power distribution system that heat dissipation effect is good, it is convenient to maintain and it is convenient to extend.

[0008] The utility model solves the technical problem using the technical scheme that the above-mentioned technical problem is solved: a kind of power distribution system, including first frame and second frame that are arranged side by side and are spaced apart, power distribution module arranged on first frame and uninterrupted power supply module arranged on second frame, the power distribution module includes transformer, low-voltage incoming line cabinet and low-voltage outgoing line cabinet, the uninterrupted power supply module is electrically connected with the power distribution module, the uninterrupted power supply module includes UPS host computer, UPS battery, UPS incoming line cabinet and UPS outgoing line cabinet, the top of the first frame is equipped with first layer for laying cable, the top of the second frame is equipped with second layer for laying cable, the first layer and second layer are also connected with the connecting support for cable passing between the first layer and second layer.

[0009] In order to facilitate the power distribution module on the first frame and the uninterrupted power supply module on the second frame to draw wires near the bottom, the bottom of the first frame is provided with a third layer, the third layer has a first channel for cable passing, the power distribution module is arranged in the space area between the first layer and the second layer on the first frame.

[0010] The bottom of the second frame is provided with a fourth layer, the fourth layer has a second channel for cable passing, and the uninterrupted power supply module is arranged in the space area between the second layer and the fourth layer on the second frame.

[0011] In order to further improve the heat dissipation effect, the bottom of the second frame is further provided with a second heat dissipation fan for pumping the airflow in the second channel outward.

[0012] In order to hide the cables on the third layer frame and the fourth layer frame, the first channel on the third layer frame is open at the top, and the top of the first channel is further provided with a detachable first cover plate, the second channel on the fourth layer frame is open at the top, and the top of the second channel is further provided with a detachable second cover plate.

[0013] As an improvement, the power distribution module further comprises a reactive compensation cabinet and a bus tie cabinet, and the uninterruptible power supply module further comprises a UPS maintenance bypass cabinet, which is located between the UPS incoming line cabinet and the UPS outgoing line cabinet.

[0014] In order to facilitate the external lead and subsequent maintenance, the top of the second layer frame is further provided with a lead-out support extending upward and inclined outward.

[0015] In order to ensure the strength of the third layer frame and the fourth layer frame, the third layer frame is square, comprising a first frame body formed by a first angle steel and a first support rod connected between the two opposite first angle steels of the first frame body.

[0016] The fourth layer frame is square, comprising a second frame body formed by a second angle steel and a second support rod connected between the two opposite second angle steels of the second frame body.

[0017] As an improvement, the cables laid on the second layer frame include UPS incoming and outgoing line cables and UPS power supply cables.

[0018] In order to further improve the heat dissipation effect and facilitate the side lead-out, the first layer frame and the second layer frame are both hollow frame structures.

[0019] Compared with the prior art, the power distribution system of the utility model has the advantages that: the uninterruptible power supply module of the power distribution system is separately arranged on the independent second frame, which is independent of the power distribution module on the first frame, so that the heat dissipation effect of the uninterruptible power supply module and the entire system is ensured, the overheating failure caused by poor heat dissipation is reduced, and the stability of the entire system is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic view of the power distribution system of the embodiment of the utility model;

[0021] Figure 2 It is the stereogrammatic sketch of the first framework and the power distribution module of the power distribution system of the utility model embodiment;

[0022] Figure 3 It is the stereogrammatic sketch of the first framework and the power distribution module of the power distribution system of the utility model embodiment from another angle;

[0023] Figure 4 It is the front view of the first framework and the power distribution module of the power distribution system of the utility model embodiment;

[0024] Figure 5 It is the stereogrammatic sketch of the first framework of the power distribution system of the utility model embodiment;

[0025] Figure 6 It is the stereogrammatic sketch of the second framework and the uninterruptible power supply module of the power distribution system of the utility model embodiment;

[0026] Figure 7 It is the stereogrammatic sketch of the second framework and the uninterruptible power supply module of the power distribution system of the utility model embodiment from another angle;

[0027] Figure 8 It is the front view of the second framework and the uninterruptible power supply module of the power distribution system of the utility model embodiment;

[0028] Figure 9 It is the left view of the second framework and the uninterruptible power supply module of the power distribution system of the utility model embodiment;

[0029] Figure 10 It is the stereogrammatic sketch of the second framework of the power distribution system of the utility model embodiment. DETAILED DESCRIPTION

[0030] The utility model will be described further in detail below in combination with the embodiment of the drawings.

[0031] In the description and claims of the utility model, directional terms such as "front", "back", "up", "down", "left", "right", "side", "top", "bottom" are used to describe various example structural parts and elements of the utility model, but these terms are used only for the convenience of description and are determined based on the example orientation shown in the drawings. Since the disclosed embodiments of the utility model can be arranged in different directions, these directional terms are only for illustration and should not be considered as limitation, for example, "up" and "down" are not necessarily limited to the direction opposite or consistent with the direction of gravity.

[0032] Figures 1-10A preferred embodiment of the power distribution system is shown. The power distribution system comprises a first frame 1, a second frame 2, a power distribution module 3 arranged on the first frame 1, and an uninterruptible power supply module 4 arranged on the second frame 2. The first frame 1 and the second frame 2 are arranged side by side and spaced apart. The spacing distance between the first frame 1 and the second frame 2 is preferably suitable for allowing maintenance personnel to pass through. The power distribution module 3 generally comprises a transformer 32 on-site cabinet 31, a transformer 32, a low-voltage incoming line cabinet 33, a low-voltage outgoing line cabinet 35, a reactive power compensation cabinet 34, a busbar cabinet 36, a direct current control cabinet 37, and a lighting / fire distribution box 38. The layout and wiring method between the above-mentioned devices of the power distribution module 3 are all prior art and will not be described here. The uninterruptible power supply module 4 is electrically connected to the power distribution module 3, and the connection method between the two is also prior art. The uninterruptible power supply module 4 comprises a UPS host 41, a UPS battery, a UPS incoming line cabinet 42, and a UPS outgoing line cabinet 43. The uninterruptible power supply module 4 is used to ensure that the electronic equipment continues to supply power in the case of power failure or other abnormal conditions. The connection method between the components or devices and the working principle are all prior art.

[0033] Referring to Figure 1 , the top of the first frame 1 is provided with a first shelf 11 for laying cables, and the top of the second frame 2 is provided with a second shelf 21 for laying cables. The first shelf 11 and the second shelf 21 are further connected by a connecting bracket 5 for passing cables, i.e. the cable wiring between the uninterruptible power supply module 4 and the power distribution module 3 is laid on the connecting bracket 5. The connecting bracket 5 can be a frame or a frame plate structure between the first shelf 11 of the first frame 1 and the second shelf 21 of the second frame 2.

[0034] Since the uninterruptible power supply module of the power distribution system is separately arranged on the independent second frame 2, it is independent of the power distribution module 3 on the first frame 1. In this way, the heat dissipation effect of the uninterruptible power supply module and the entire system is ensured, and the overheating failure caused by poor heat dissipation is reduced, ensuring the stability of the entire system. On the other hand, the independent UPS power supply unit can conveniently expand the capacity by adding modules or connecting other uninterruptible power supply modules in parallel to meet the growing demand, and can also be conveniently maintained and repaired, reducing the impact on the normal operation of the system.

[0035] Referring to Figures 2-5 , the bottom of the first frame 1 is further provided with a third shelf 12 having a first passage 120 for passing cables. The outer periphery of the first shelf 11 is connected to the outer periphery of the third shelf 12 by a plurality of first stands 10 arranged at intervals. The power distribution module 3 is arranged in the space region between the first shelf 11 and the second shelf 21 on the first frame 1. Similarly, referring to Figures 6-10The bottom of the second frame 2 is provided with a fourth layer 22, and the fourth layer 22 has a second passage 220 for the cable. The outer periphery of the second layer 21 is connected to the outer periphery of the fourth layer 22 through a plurality of second stands 20 arranged at intervals. The uninterruptible power supply module 4 is arranged on the second frame 2 in the space region between the second layer 21 and the fourth layer 22. The cables of each device of the power distribution module 3 can be selected to pass through the first layer 11 or the third layer 12 in place, and similarly, the cables of each device of the uninterruptible power supply module 4 can be selected to pass through the first layer 11 or the third layer 12 in place. In order to further improve the heat dissipation effect and facilitate the side wire outlet, the first layer 11 and the second layer 21 are both hollow frame structures with a certain thickness in the up-down direction.

[0036] The first frame 1 and the second frame 2 of the embodiment are both prefabricated frame structures, and the power distribution module 3 and the uninterruptible power supply module 4 can be assembled into the corresponding first frame 1 and second frame 2 and then delivered to the site, thereby reducing the site engineering quantity, improving the overall project delivery efficiency, and saving time cost. Specifically, the third layer 12 is square, including a first frame body formed by a first angle steel 122 and a first support rod 123 connected between the two opposite first angle steels 122 of the first frame body, and the power distribution module 3 can be placed on the first support rod 123 and the first angle steel 122 of the third layer 12. The fourth layer 22 is square, including a second frame body formed by a second angle steel 222 and a second support rod 223 connected between the two opposite second angle steels 222 of the second frame body, and the power distribution module 3 can be placed on the second support rod 223 and the second angle steel 222 of the fourth layer 22. The third layer 12 and the fourth layer 22 use angle steels as the main support frame structure, which can effectively ensure the strength of the third layer 12 and the fourth layer 22.

[0037] The top of the first passage 120 on the third layer 12 is open, and the top of the first passage 120 is also provided with a detachable first cover plate 121, wherein the first cover plate 121 can be connected to the third layer 12 by screws or buckles. The top of the second passage 220 on the fourth layer 22 is open, and the top of the second passage 220 is also provided with a detachable second cover plate 221, and the second cover plate 221 can be connected to the fourth layer 22 by screws or buckles. After the corresponding first cover plate 121 and second cover plate 221 are arranged, the cables passing through the third layer 12 and the fourth layer 22 can be hidden and protected.

[0038] Referring to Figure 7, considering that the cable in the second channel 220 at the bottom of the second frame 2 generates a large amount of heat, in order to further improve the heat dissipation effect, the bottom of the second frame 2 is further provided with a second heat dissipation fan 225 for pumping the airflow in the second channel 220 outward. Specifically, a ventilation hole can be formed on the wall of the second channel 220, and the second heat dissipation fan 225 can be opposite to the ventilation hole and have an outward air outlet direction. The second heat dissipation fan 225 is arranged in multiple along the length direction L of the second frame 2, and specifically, each second heat dissipation fan 225 can be arranged at the side of the second channel 220.

[0039] The UPS maintenance bypass cabinet 44 of the uninterruptible power supply module 4 is located between the UPS incoming line cabinet 42 and the UPS outgoing line cabinet 43. In order to facilitate the external wiring and subsequent maintenance, the top of the second layer frame 21 further has an outgoing line support 226 extending upward and inclined outward. The outgoing line support 226 is located adjacent to the UPS outgoing line cabinet 43 on the second frame 2. The cables laid on the second layer frame 21 include the UPS incoming and outgoing line cables 45 and the UPS power supply cables 46, and further include the over-bridge dense bus 61. The first layer frame 11 of the first frame 1 is further provided with the over-bridge dense bus 61 and the liaison dense bus 62. The connection structure between the above-mentioned cables and the corresponding devices of the power distribution module 3 and the uninterruptible power supply module 4 is a prior art and will not be described in detail.

Claims

1. A power distribution system, characterized in that: The system includes a first frame (1) and a second frame (2) arranged side by side and spaced apart, a power distribution module (3) on the first frame (1) and an uninterruptible power supply module (4) on the second frame (2). The power distribution module (3) includes a transformer (32), a low-voltage incoming cabinet (33) and a low-voltage outgoing cabinet (35). The uninterruptible power supply module (4) is electrically connected to the power distribution module (3). The uninterruptible power supply module (4) includes a UPS host (41), a UPS battery, a UPS incoming cabinet (42) and a UPS outgoing cabinet (43). The top of the first frame (1) is provided with a first shelf (11) for laying cables, and the top of the second frame (2) is provided with a second shelf (21) for laying cables. A connecting bracket (5) for cables to pass through is also connected between the first shelf (11) and the second shelf (21).

2. The power distribution system according to claim 1, characterized in that: The bottom of the first frame (1) is provided with a third shelf (12), the third shelf (12) has a first channel (120) for cables to pass through, and the power distribution module (3) is arranged on the first frame (1) in the space between the first shelf (11) and the second shelf (21); The bottom of the second frame (2) is provided with a fourth shelf (22), which has a second channel (220) for cables to pass through. The uninterruptible power supply module (4) is arranged on the second frame (2) in the space between the second shelf (21) and the fourth shelf (22).

3. The power distribution system according to claim 2, characterized in that: The bottom of the second frame (2) is also provided with a second cooling fan (225) for drawing the airflow in the second channel (220) outward.

4. The power distribution system according to claim 2, characterized in that: The top of the first channel (120) on the third shelf (12) is open, and the top opening of the first channel (120) is also provided with a detachable first cover plate (121). The top of the second channel (220) on the fourth shelf (22) is open, and the top opening of the second channel (220) is also provided with a detachable second cover plate (221).

5. The power distribution system according to claim 1, characterized in that: The power distribution module (3) also includes a reactive power compensation cabinet (34) and a bus tie cabinet (36). The uninterruptible power supply module (4) also includes a UPS maintenance bypass cabinet (44), which is located between the UPS incoming cabinet (42) and the UPS outgoing cabinet (43).

6. The power distribution system according to claim 5, characterized in that: The top of the second shelf (21) also has an upwardly extending and outwardly inclined cable support (226).

7. The power distribution system according to claim 2, characterized in that: The third shelf (12) is square and includes a first frame body formed by first angle steel (122) and a first support rod (123) connected between two opposing first angle steels (122) on the first frame body; The fourth shelf (22) is square and includes a second frame body formed by second angle steel (222) and a second support rod (223) connected between two opposing second angle steels (222) on the second frame body.

8. The power distribution system according to any one of claims 1 to 5, characterized in that: The cables laid on the second shelf (21) include UPS incoming and outgoing cables (45) and UPS power cables (46).

9. The power distribution system according to any one of claims 1 to 5, characterized in that: Both the first shelf (11) and the second shelf (21) are hollow frame structures.

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