Prefabricated photovoltaic transformer substation

Abstract

The prefabricated photovoltaic transformer substation comprises a cabinet body, the bottom of the cabinet body is connected with a base, the opening end of the cabinet body is provided with a cabinet door through a hinge, and the top end of the cabinet body is provided with an air outlet pipe; the air exhaust mechanism is mounted at the top end of the cabinet body and is in butt joint with the air outlet pipe; a first through hole is formed in the bottom of the cabinet body, an inner cavity of the cabinet body is communicated with the outside through the first through hole and a hole and a groove formed in the base, the base is arranged at the bottom of the cabinet body, and the corresponding hole and the corresponding groove are formed in the base, so that the cabinet body is communicated with the outside; the holes are formed in the bottom of the cabinet body, so that rainwater cannot enter the cabinet body, and the waterproof effect is ensured while heat dissipation is realized; the inner cavity of the cabinet body is divided into a plurality of independent cavities by arranging the partition plates, so that the transformers cannot interfere with one another.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic substations, and particularly provides a prefabricated photovoltaic substation. Background Art

[0002] The Chinese utility model patent with the publication number of CN220233968U discloses a photovoltaic prefabricated substation box body, which includes: a main substation unit, which includes a base and a main box body fixedly installed on the base. A high-voltage box is fixedly communicated with the back side of the main box body. A transformer is fixedly installed on the inner wall of the lower side of the main box body. High-voltage equipment is fixedly installed in the high-voltage box. A plurality of groups of uniformly distributed cabinet doors are hinged on one side of the main box body away from the high-voltage box; a temperature-sensing heat dissipation unit, which includes a cold source box fixedly installed on the upper side wall of the main box body and cooling pipes uniformly arranged in the main box body. One end of the cooling pipe is communicated with the cold source box, and a water pump communicated with the cooling pipe is fixedly installed in the main box body. The end of the cooling pipe away from the water pump is fixedly communicated with a return pipe through a check valve, and the end of the return pipe away from the check valve is fixedly communicated with the cold source box. A temperature control switch electrically connected to the water pump is fixedly installed on the inner wall of the upper end of the main box body.

[0003] The above patent has the following deficiencies:

[0004] 1) By opening holes on the side of the cabinet for heat dissipation, although a rain shield is set for rain protection, when it is windy and rainy at the same time, rain still enters through the holes on the side of the cabinet.

[0005] 2) By setting bent cooling pipes for heat exchange to achieve heat dissipation, the efficiency of heat exchange through the cold water in the cooling pipes is low. Moreover, the bent cooling pipes will inevitably increase the volume of the cabinet, and the bent cooling pipes in the cabinet will also cause inconvenience in maintaining the cooling pipes. Content of the Utility Model

[0006] In view of the problems existing in the existing prefabricated photovoltaic substation, the present utility model is proposed.

[0007] Therefore, the purpose of the present utility model is to provide a prefabricated photovoltaic substation, which solves the problems existing in the above patent. That is, by opening holes on the side of the cabinet for heat dissipation, although a rain shield is set for rain protection, when it is windy and rainy at the same time, rain still enters through the holes on the side of the cabinet; by setting bent cooling pipes for heat exchange to achieve heat dissipation, the efficiency of heat exchange through the cold water in the cooling pipes is low. Moreover, the bent cooling pipes will inevitably increase the volume of the cabinet, and the bent cooling pipes in the cabinet will also cause inconvenience in maintaining the cooling pipes.

[0008] To solve the above technical problems, according to one aspect of the present utility model, the following technical solutions are provided:

[0009] A prefabricated photovoltaic substation, comprising a cabinet body, the bottom of the cabinet body is connected with a base, the open end of the cabinet body is installed with a cabinet door through a hinge, and an air outlet pipe is installed at the top of the cabinet body;

[0010] It further includes an air extraction mechanism installed at the top of the cabinet body, and the air extraction mechanism is docked with the air outlet pipe;

[0011] A first through hole is opened at the bottom of the cabinet body, and the inner cavity of the cabinet body is communicated with the outside through the first through hole and the holes and grooves opened on the base.

[0012] As a preferred scheme of the prefabricated photovoltaic substation described in the present invention, wherein: a through hole is opened at the top of the cabinet body, the air outlet pipe penetrates through the through hole and extends into the inner cavity of the cabinet body, and the air outlet pipe and the hole wall are sealed through a sealing ring.

[0013] As a preferred scheme of the prefabricated photovoltaic substation described in the present invention, wherein: the base is a hollow structure with openings at both ends, a support ring is welded in the inner cavity of the base, the support ring divides the inner cavity of the base into an upper groove and a lower groove, and a second through hole communicated with the lower groove is opened on the base.

[0014] As a preferred scheme of the prefabricated photovoltaic substation described in the present invention, wherein: the bottom size of the upper groove is the same as the size of the upper groove, and the bottom end of the cabinet body is inserted into the upper groove.

[0015] As a preferred scheme of the prefabricated photovoltaic substation described in the present invention, wherein: a support and limit seat for supporting and limiting the transformer is welded on the bottom wall of the inner cavity of the cabinet body, a plug-in groove is opened at the top end of the support and limit seat, a second groove and a third through hole are opened at the bottom of the support and limit seat, and the third through hole is communicated with the second groove.

[0016] As a preferred scheme of the prefabricated photovoltaic substation described in the present invention, wherein: several partition plates are welded in the cabinet body, the several partition plates divide the inner cavity of the cabinet body into multiple independent cavities, and a transformer is arranged in each cavity.

[0017] As a preferred scheme of the prefabricated photovoltaic substation described in the present invention, wherein: an air extraction pump is installed at the top of the air extraction mechanism cabinet body, the input end of the air extraction pump is connected with a bent pipe, the other end of the bent pipe is connected with a main pipe, an air inlet interface is arranged at the bottom of the main pipe, and the air inlet interface is docked with the air outlet pipe.

[0018] Compared with the prior art:

[0019] 1. By setting a base at the bottom of the cabinet body and opening corresponding holes and slots on the base, the communication between the cabinet body and the outside world is realized. Since the holes are located at the bottom of the cabinet body, rainwater will not enter the cabinet body, thus ensuring the waterproof effect while achieving heat dissipation.

[0020] 2. By setting partitions to divide the inner cavity of the cabinet body into multiple independent cavities, each transformer will not interfere with each other. And when some transformers are not in use, the heat of the transformers in use will not cause the temperature of the unused transformers to rise, which helps to protect the transformers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram provided by the present utility model;

[0022] Figure 2 provided by the present utility model Figure 1 cross-sectional view;

[0023] Figure 3 provided by the present utility model Figure 2 cross-sectional view;

[0024] Figure 4 is a cross-sectional view of the support and limit seat provided by the present utility model;

[0025] Figure 5 is a cross-sectional view of the base provided by the present utility model.

[0026] In the figure: cabinet body 1, cabinet door 2, base 3, second through hole 31, support ring 32, upper groove 33, lower groove 34, air outlet pipe 4, main pipe 5, elbow 6, air extraction pump 7, transformer 8, partition 9, support and limit seat 10, insertion slot 101, second groove 102, third through hole 103, first through hole 11, independent cavity 12, support column 13, rain shield 14, second support connection seat 15, first support connection seat 16. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To make the objectives, technical solutions, and advantages of the present utility model clearer, the following will further describe the embodiments of the present utility model in detail with reference to the drawings.

[0028] Embodiment 1:

[0029] The present utility model provides a prefabricated photovoltaic substation. Please refer to Figures 1-5, including a cabinet body 1. A first support connection seat 16 is welded to the top end of the cabinet body 1. A support column 13 is inserted into the inner wall of the first support connection seat 16, and the support column 13 and the first support connection seat 16 are fixed by bolts; a second support connection seat 15 is inserted into the top end of the support column 13, and the second support connection seat 15 and the support column 13 are fixed by bolts. A rain shield 14 is welded to the top end of the second support connection seat 15. The bottom of the cabinet body 1 is connected to a base 3. The open end of the cabinet body 1 is installed with a cabinet door 2 through a hinge, and an air outlet pipe 4 is installed at the top end of the cabinet body 1;

[0030] It further includes an air extraction mechanism installed at the top end of the cabinet body 1, and the air extraction mechanism is docked with the air outlet pipe 4;

[0031] A first through hole 11 is opened at the bottom of the cabinet body 1, and the inner cavity of the cabinet body 1 is communicated with the outside through the first through hole 11 and the holes and grooves opened on the base 3.

[0032] A through hole is opened at the top end of the cabinet body 1, and the air outlet pipe 4 penetrates through the through hole and extends into the inner cavity of the cabinet body 1. The air outlet pipe 4 and the hole wall are sealed by a sealing ring; a valve is installed on the air outlet pipe 4, so that when some transformers are in use, the valve on the corresponding air outlet pipe 4 is opened.

[0033] The base 3 is a hollow structure with both ends open. A support ring 32 is welded in the inner cavity of the base 3. The support ring 32 divides the inner cavity of the base 3 into an upper groove 33 and a lower groove 34. A second through hole 31 communicated with the lower groove 34 is opened on the base 3.

[0034] The bottom size of the upper groove 33 is the same as the size of the upper groove 33, and the bottom end of the cabinet body 1 is inserted into the upper groove 33; the outside air is communicated with the inner cavity of the cabinet body 1 through the second through hole 31, the lower groove 34, the first through hole 11, the second groove 102 and the third through hole 103. Thus, during the process of the air extraction pump 7 extracting air, the outside air enters the cabinet body 1 through the second through hole 31, the lower groove 34, the first through hole 11, the second groove 102 and the third through hole 103.

[0035] An air extraction pump 7 is installed at the top end of the air extraction mechanism of the cabinet body 1. The input end of the air extraction pump 7 is connected with a bent pipe 6. The other end of the bent pipe 6 is connected with a main pipe 5. An air inlet interface 51 is arranged at the bottom of the main pipe 5, and the air inlet interface 51 is docked with the air outlet pipe 4; the air extraction pump 7 is started, and the hot air in the cabinet body 1 is extracted through the bent pipe 6, the main pipe 5 and the air outlet pipe 4.

[0036] A support and limit seat 10 for supporting and limiting the transformer 8 is welded on the bottom wall of the inner cavity of the cabinet body 1. A plug-in groove 101 is formed at the top end of the support and limit seat 10, a second groove 102 and a third through hole 103 are formed at the bottom of the support and limit seat 10, and the third through hole 103 is communicated with the second groove 102.

[0037] A plurality of partition plates 9 are welded in the cabinet body 1, and the plurality of partition plates 9 divide the inner cavity of the cabinet body 1 into a plurality of independent cavities 12, and a transformer 8 is arranged in each cavity.

[0038] During specific use, start the air extraction pump 7, and extract the hot air in the cabinet body 1 through the elbow pipe 6, the main pipeline 5 and the air outlet pipe 4. The air outside enters the cabinet body 1 through the second through hole 31, the lower groove 34, the first through hole 11, the second groove 102 and the third through hole 103, so as to realize air circulation.

[0039] Although the present invention has been described with reference to the embodiments above, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the disclosed embodiments of the present invention can be combined with each other in any way, and the situations of these combinations are not exhaustively described in this specification only for the consideration of saving space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A prefabricated photovoltaic substation, comprising a cabinet (1), the bottom of the cabinet (1) being connected to a base (3), and an open end of the cabinet (1) being provided with a cabinet door (2) via a hinge, characterized in that: An air outlet pipe (4) is installed at the top of the cabinet (1); It also includes an air extraction mechanism installed on the top of the cabinet (1), the air extraction mechanism being connected to the air outlet pipe (4); A first through hole (11) is provided at the bottom of the cabinet body (1), and the inner cavity of the cabinet body (1) is connected to the outside through the first through hole (11) and the holes and grooves provided on the base (3).

2. A prefabricated photovoltaic substation according to claim 1, characterized in that: A through hole is provided at the top of the cabinet (1); an air outlet pipe (4) passes through the through hole and extends into the inner cavity of the cabinet (1); a sealing ring is used to seal the air outlet pipe (4) and the hole wall.

3. A prefabricated photovoltaic substation according to claim 1, characterized in that: The base (3) is a hollow structure with openings at both ends. A support ring (32) is welded in the inner cavity of the base (3). The support ring (32) divides the inner cavity of the base (3) into an upper groove (33) and a lower groove (34). The base (3) is provided with a second through hole (31) that is in communication with the lower groove (34).

4. A prefabricated photovoltaic substation according to claim 3, characterized in that: The bottom dimension of the upper groove (33) is the same as the dimension of the upper groove (33), and the bottom end of the cabinet (1) is inserted into the upper groove (33).

5. The prefabricated photovoltaic substation according to claim 1, characterized in that: A support and limit seat (10) for supporting and limiting the transformer (8) is welded on the bottom wall of the inner cavity of the cabinet (1), a plug-in slot (101) is provided at the top of the support and limit seat (10), a second groove (102) and a third through hole (103) are provided at the bottom of the support and limit seat (10), and the third through hole (103) is connected to the second groove (102).

6. A prefabricated photovoltaic substation according to claim 1, characterized in that: A plurality of partitions (9) are welded inside the cabinet (1), and the plurality of partitions (9) divide the inner cavity of the cabinet (1) into a plurality of independent cavities (12), each of which is provided with a transformer (8).

7. The prefabricated photovoltaic substation according to claim 1, characterized in that: An air pump (7) is installed at the top of the air extraction mechanism cabinet (1); the input end of the air pump (7) is connected to a curved pipe (6); the other end of the curved pipe (6) is connected to a main pipeline (5); an air inlet interface (51) is provided at the bottom of the main pipeline (5); the air inlet interface (51) is butt-jointed with the air outlet pipe (4).

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