An external gooseneck radiator adapted to photovoltaic or wind power transformer

Abstract

The utility model relates to power equipment heat dissipation technical field, concretely relates to a kind of external goose neck type radiator of adaptation photovoltaic or wind power transformer. Including oil collecting pipe I, oil collecting pipe II and the fin of two ends respectively with oil collecting pipe I and oil collecting pipe II intercommunication and being set equidistantly and vertically spaced several pieces. Oil collecting pipe I is goose neck type structure, and its upper surface is fixedly provided with outlet towards fin by axial fan assembly mounting bracket. The surface of oil collecting pipe II is provided with temperature measuring component, and temperature measuring component controls the switch of axial fan assembly by temperature control system. When the temperature measuring component of the utility model monitors transformer oil temperature to reach preset high temperature threshold value, axial fan assembly is started by temperature control system to assist cooling transformer oil in heat dissipation core, significantly improves the heat dissipation efficiency of transformer oil under high temperature environment, effectively solves the technical problem that the heat dissipation efficiency of transformer oil is insufficient and further influences the heat dissipation efficiency and operating stability of transformer.

Description

Technical Field

[0001] This utility model relates to the field of power equipment heat dissipation technology, specifically to an external gooseneck radiator adapted to photovoltaic or wind power transformers. Background Technology

[0002] In new energy power generation systems such as photovoltaic and wind power, transformers, as core power equipment, generate a large amount of heat during operation. If this heat cannot be dissipated in time, the internal temperature of the transformer will become too high, affecting its operating performance and service life, and even causing safety accidents.

[0003] In existing technologies, external gooseneck radiators are typically used to assist in cooling transformer oil. These radiators usually consist of two main pipes and heat sinks placed between them. The transformer oil is then diverted by the heat sinks to achieve a cooling effect.

[0004] However, in high-temperature environments or when transformers operate at full load for extended periods, the external gooseneck radiators used in existing technologies rely on their own heat sinks to cool the transformer oil. This presents a technical problem: insufficient cooling efficiency for the transformer oil can affect the transformer's cooling efficiency and operational stability.

[0005] Therefore, in order to solve the above-mentioned technical problems, this application proposes an external gooseneck radiator adapted to photovoltaic or wind power transformers. Utility Model Content

[0006] This utility model provides an external gooseneck radiator adapted to photovoltaic or wind power transformers. Its purpose is to solve the technical problem that the existing external gooseneck radiators have insufficient heat dissipation efficiency for transformer oil, which affects the transformer's heat dissipation efficiency and operational stability.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows: This utility model provides an external gooseneck radiator adapted for photovoltaic or wind power transformers, including an oil collecting pipe I, an oil collecting pipe II, and heat sink fins. Several heat sink fins are vertically spaced at equal intervals and connected at both ends to oil collecting pipe I and oil collecting pipe II respectively. Oil collecting pipe I has a gooseneck structure, and an axial flow fan assembly is fixedly mounted on its upper surface via an axial flow fan assembly mounting bracket. A temperature measuring component is provided on the surface of oil collecting pipe II, and this component controls the switching on and off of the axial flow fan assembly through a temperature control system.

[0008] Furthermore, the upper surface of the oil collecting pipe I is provided with a fixing orifice plate I and a fixing orifice plate II.

[0009] Furthermore, the outer surface of the heat sink is provided with fixing ribs, which are arranged along the transverse direction of the heat sink.

[0010] Furthermore, square flanges are respectively provided at the ends of oil collecting pipe I and oil collecting pipe II away from the heat sink.

[0011] Furthermore, an annular groove is provided on the sealing surface of the square flange, and a sealing rubber ring is embedded in the annular groove.

[0012] Furthermore, the bending angle of the oil collecting pipe I is α, and the value of α ranges from 90°≤α≤150°.

[0013] Furthermore, the height of the fixed perforated plate I is less than the height of the axial flow fan assembly mounting bracket.

[0014] Furthermore, the height of the fixed perforated plate II is less than the height of the axial flow fan assembly mounting bracket.

[0015] The beneficial effects achieved by this utility model are as follows: This invention employs a technical solution that involves installing an axial flow fan assembly on the upper surface of oil collecting pipe I and a temperature measuring component on the surface of oil collecting pipe II. When the temperature measuring component detects in real time that the oil temperature has reached a preset high-temperature threshold (such as during the high-temperature period of a photovoltaic power station in summer or during the long-term full-load operation of a wind power transformer), the temperature control system immediately activates the axial flow fan assembly. By forcibly delivering air to accelerate airflow, it enhances the auxiliary cooling of the transformer oil in the heat sink. Compared with the traditional method that relies solely on natural convection of the heat sink, this significantly improves the heat dissipation efficiency under high-temperature conditions. This effectively solves the technical problem of insufficient heat dissipation efficiency of transformer oil in existing external gooseneck radiators, which affects the transformer's heat dissipation efficiency and operational stability.

[0016] The gooseneck structure design of this utility model is compatible with the existing transformer shape structure. The bending angle α of the oil collecting pipe I is between 90° and 150°, which can flexibly adapt to the shape contour of various photovoltaic or wind power transformers. Whether in the space-constrained inverter area of ​​a photovoltaic power station or in the narrow vertical installation environment inside a wind turbine tower, the radiator can fit tightly against the transformer surface, significantly reducing unnecessary space occupation, optimizing equipment layout, and facilitating installation and subsequent maintenance.

[0017] The horizontally arranged fixing ribs on the outer surface of the heat sink significantly enhance its resistance to deformation. Even under high-frequency vibration of wind power equipment or bumpy transportation conditions, the structural integrity of the heat sink can be guaranteed, ensuring stable heat dissipation function. The annular groove on the sealing surface of the square flange, together with the sealing ring, forms a double sealing protection, effectively eliminating the risk of transformer oil leakage, adapting to complex and changeable outdoor climate conditions, extending the service life of the radiator and transformer, and reducing operation and maintenance costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a top view of the axial flow fan assembly of this utility model; Figure 3 This is a side view of the square flange of this utility model. Figure 4 is a partial enlarged schematic diagram of the structure of this utility model.

[0020] In the diagram, 1. Oil collecting pipe I; 2. Oil collecting pipe II; 3. Heat sink; 4. Axial flow fan assembly mounting bracket; 5. Axial flow fan assembly; 6. Temperature measuring component; 7. Fixing orifice plate I; 8. Fixing orifice plate II; 9. Fixing rib; 10. Square flange; 11. Sealing ring. Detailed Implementation

[0021] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] like Figures 1-4 As shown, this utility model provides an external gooseneck radiator adapted to photovoltaic or wind power transformers, including an oil collecting pipe I1, an oil collecting pipe II2, and heat sinks 3. Several heat sinks 3 are arranged vertically at equal intervals, with both ends connected to the oil collecting pipes I1 and II2 respectively. The oil collecting pipe I1 has a gooseneck structure, and an axial flow fan assembly 5 is fixedly mounted on its upper surface via an axial flow fan assembly mounting bracket 4. The air outlet of the axial flow fan assembly 5 faces the heat sinks 3. A temperature measuring component 6 is provided on the surface of the oil collecting pipe II2. The temperature measuring component 6 controls the switching of the axial flow fan assembly 5 through a temperature control system. The temperature measuring component 6 is a temperature sensor. The temperature control system includes a controller and a relay. When the temperature detected by the temperature sensor exceeds a preset threshold, the controller controls the cooling fan to start via the relay. The function of the temperature control system involved in this utility model is prior art; those skilled in the art can implement its function based on the functional description, and the specific principle is not elaborated further.

[0025] The upper surface of the oil collecting pipe I1 is provided with a fixing plate I7 ​​and a fixing plate II8 for connecting and fixing to the transformer body or other structural components.

[0026] The outer surface of the heat sink 3 is provided with fixing ribs 9, which are arranged along the transverse direction of the heat sink 3 to enhance the structural strength of the heat sink 3.

[0027] The oil collecting pipe I1 and oil collecting pipe II2 are respectively provided with square flanges 10 at the ends away from the heat sink 3. The sealing surface of the square flange 10 is provided with an annular groove, and a sealing rubber ring 11 is embedded in the annular groove to improve the connection sealing performance.

[0028] The bending angle of the oil collection pipe I1 is α, and the value of α is in the range of 90°≤α≤150°, so as to adapt to different installation space requirements.

[0029] The height of the fixed perforated plate I7 ​​is less than the height of the axial flow fan assembly mounting bracket 4.

[0030] The height of the fixed perforated plate II8 is less than the height of the axial flow fan assembly mounting bracket 4.

[0031] The working principle of this utility model is as follows: During actual installation, first determine the bending angle α of the oil collection pipe I1 according to the shape of the transformer and the installation space. Then connect the radiator to the oil circuit interface of the transformer through the square flange 10. During the connection process, ensure that the sealing ring 11 is embedded in the annular groove on the sealing surface of the square flange 10 to ensure the sealing of the connection. The two ends of the heat sink 3 are connected to oil collecting pipe I 1 and oil collecting pipe II 2 respectively, forming a flow channel for transformer oil. When the transformer is running, the transformer oil circulates in the oil circuit. When it passes through the heat sink 3, it exchanges heat with the air through the heat sink 3, realizing natural convection heat dissipation.

[0032] When the temperature sensing element 6 on the surface of oil collecting pipe II 2 detects that the oil temperature has reached the preset temperature threshold, it transmits a signal to the temperature control system. The temperature control system then controls the axial flow fan assembly 5 to start, and the cooling fan blows air onto the heat sink 3 to accelerate airflow, force heat dissipation, and improve heat dissipation efficiency. When the oil temperature drops to a certain level, the temperature sensing element 6 sends a signal again, and the temperature control system controls the axial flow fan assembly 5 to stop operating. The fixing perforated plate I 7 and fixing perforated plate II 8 on the upper surface of oil collecting pipe I 1 can cooperate with the corresponding fixing structure on the transformer to further fix the radiator and enhance the stability of the installation. The fixing ribs 9 on the outer surface of the heat sink 3 can effectively prevent the heat sink 3 from deforming under vibration, ensuring the normal operation of the radiator.

[0033] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An external gooseneck radiator adapted to photovoltaic or wind power transformers, characterized in that: It includes oil collection pipe I (1), oil collection pipe II (2) and heat sink (3); The heat sink (3) consists of several pieces, which are arranged vertically at equal intervals and are connected at both ends to oil collection pipe I (1) and oil collection pipe II (2) respectively. The oil collection pipe I (1) is a gooseneck structure, and the axial flow fan assembly (5) is fixedly installed on its upper surface by the axial flow fan assembly mounting bracket (4). The air outlet of the axial flow fan assembly (5) is set towards the heat sink (3). The surface of the oil collection pipe II (2) is provided with a temperature measuring component (6), and the temperature measuring component (6) controls the switching of the axial flow fan assembly (5) through the temperature control system.

2. The external gooseneck radiator adapted to photovoltaic or wind power transformers according to claim 1, characterized in that: The upper surface of the oil collecting pipe I (1) is provided with a fixed orifice plate I (7) and a fixed orifice plate II (8).

3. The external gooseneck radiator adapted to photovoltaic or wind power transformers according to claim 1, characterized in that: The heat sink (3) has a fixing rib (9) on its outer surface, and the fixing rib (9) is arranged along the transverse direction of the heat sink (3).

4. An external gooseneck radiator adapted to photovoltaic or wind power transformers according to claim 1 or 2, characterized in that: The oil collection pipe I (1) is provided with a square flange (10) at the end away from the heat sink (3).

5. An external gooseneck radiator adapted to photovoltaic or wind power transformers according to claim 1, characterized in that: The oil collection pipe II (2) is provided with a square flange (10) at the end away from the heat sink (3).

6. An external gooseneck radiator adapted to photovoltaic or wind power transformers according to claim 5, characterized in that: The sealing surface of the square flange (10) is provided with an annular groove, and a sealing ring (11) is embedded in the annular groove.

7. An external gooseneck radiator adapted to photovoltaic or wind power transformers according to claim 1 or 2, characterized in that: The bending angle of the oil collecting pipe I (1) is α, and the value of α is in the range of 90°≤α≤150°.

8. An external gooseneck radiator adapted to photovoltaic or wind power transformers according to claim 2, characterized in that: The height of the fixed perforated plate I (7) is less than the height of the axial flow fan assembly mounting bracket (4).

9. An external gooseneck radiator adapted to photovoltaic or wind power transformers according to claim 2, characterized in that: The height of the fixed perforated plate II (8) is less than the height of the axial flow fan assembly mounting bracket (4).

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