Photovoltaic box transformer oil taking auxiliary device

Abstract

The utility model discloses a kind of photovoltaic box transformer oil taking auxiliary devices, including chassis and oil guide cylinder, the center of the chassis is provided with oil guide cylinder, the upper end of the oil guide cylinder is provided with corrugated connecting cylinder, the upper end of the corrugated connecting cylinder is provided with small mouth connecting end, the outside of the corrugated connecting cylinder is connected with outer sheath by first bolt connection.The utility model realizes the quick, firm and sealed connection of oil taking pipeline and oil taking port, significantly improves the efficiency and reliability of oil filtering operation, effectively avoids the problem of pipeline loosening or falling off in the oil filtering process, further improves the convenience of connection, convenient to use, simple operation.

Description

Technical Field

[0001] This utility model relates to a quick connection device for insulating oil filtration and oil extraction, and particularly to an auxiliary device for oil extraction in photovoltaic transformer substations, belonging to the technical field of auxiliary facilities for photovoltaic operation and maintenance engineering. Background Technology

[0002] As the operation and maintenance time of photovoltaic (PV) systems extends, the hydrogen content and other indicators of the insulating oil in transformer substations may no longer meet standard requirements. Therefore, filtering the insulating oil in transformer substations has gradually become an important aspect of PV operation and maintenance. However, in actual oil filtering processes, because the oil inlets of PV transformer substations are mostly flat or have small holes, it is difficult to properly connect the oil filter pipes. Even if a connection is forced, there are often problems with the connection being weak, which can easily lead to leakage and pipe detachment during the oil filtering process. This not only reduces the efficiency of oil filtering but also affects the effectiveness of the filtering. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an auxiliary device for oil extraction in photovoltaic transformer substations, which can quickly and firmly connect the oil extraction pipe, improve the efficiency and reliability of oil filtration operation, and at the same time reduce operation and maintenance costs and environmental risks.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0005] An auxiliary device for oil extraction in a photovoltaic transformer substation includes a chassis and an oil guide cylinder. The oil guide cylinder is located at the center of the chassis, and a corrugated connecting cylinder is located at the upper end of the oil guide cylinder. A small-mouth connecting end is located at the upper end of the corrugated connecting cylinder, and an outer sheath is connected to the outside of the corrugated connecting cylinder by a first bolt.

[0006] The chassis has a circular oil outlet at its center and an oil guide cylinder above it. Bolt holes are provided around the perimeter of the chassis for fixing the oil outlet.

[0007] The outer sheath consists of two shells, each in a semi-circular shape, and is secured by a first bolt.

[0008] The outer wall of the upper port of the oil guide cylinder is provided with an annular outer plate, and the outer wall of the outer sheath is provided with an outer end plate. Bolt holes are provided on the annular outer plate and the outer end plate respectively, and a second bolt is provided between the two bolt holes.

[0009] The inner wall of the outer sheath matches the outer wall of the corrugated connecting cylinder.

[0010] The diameter of the lower port of the small-mouth connection end is the same as the diameter of the upper port of the corrugated connecting cylinder, and the diameter of the upper port of the small-mouth connection end is smaller than the diameter of the lower port of the small-mouth connection end.

[0011] The positive and beneficial effects of this utility model are:

[0012] 1. This utility model provides an oil guide cylinder outside the oil inlet and an oil corrugated connecting cylinder at the upper end of the oil guide cylinder, which facilitates the connection of the oil filter pipe. At the same time, by providing an outer protective sleeve outside the corrugated connecting cylinder, the oil filter pipe and the corrugated connecting cylinder can be fixedly connected together, effectively avoiding the problem of pipe loosening or falling off during the oil filtration process and ensuring a tight fit between the two.

[0013] 2. This utility model features a small-mouth connection end at the upper end of the corrugated connecting pipe. This tapered design allows the oil filter pipe to be inserted more tightly, further improving the convenience of connection, making it easy to use and simple to operate.

[0014] 3. This utility model ensures the strong connection between the corrugated connecting cylinder, the outer sheath, and the oil guide cylinder by setting a second bolt between the annular outer plate and the outer end plate, thereby enhancing the sealing of the connection and ensuring that there will be no leakage during the oil filtration process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 for Figure 1 A three-dimensional image;

[0017] Wherein: 1-chassis, 101-bolt hole, 2-oil guide cylinder, 3-corrugated connecting pipe, 4-small opening connecting end, 5-outer sheath, 6-first bolt, 7-annular outer plate, 8-outer end plate, 9-second bolt. Detailed Implementation

[0018] The present invention will be further explained and described below with reference to the accompanying drawings:

[0019] See the example. Figures 1-2 An auxiliary device for oil extraction in a photovoltaic transformer box includes a chassis 1 and an oil guide cylinder 2. The oil guide cylinder 2 is located at the center of the chassis 1. A corrugated connecting cylinder 3 is located at the upper end of the oil guide cylinder 2. A small-mouth connecting end 4 is located at the upper end of the corrugated connecting cylinder 3. An outer sheath 5 is connected to the outside of the corrugated connecting cylinder 3 by a first bolt 6.

[0020] A circular oil outlet is provided at the center of the chassis 1, and an oil guide cylinder 2 is provided above the circular oil outlet. Bolt holes are provided on the chassis outside the oil guide cylinder for fixing the chassis 1 to the oil outlet. In use, the chassis is fixedly connected to the box outside the oil outlet by bolts.

[0021] There are two outer sheaths 5, both of which are semi-circular shells and are fixed by the first bolt 6.

[0022] An annular outer plate 7 is provided on the outer wall of the upper port of the oil guide cylinder 2, and an outer end plate 8 is provided on the outer wall of the outer sheath 5. Bolt holes are provided on the annular outer plate 7 and the outer end plate 8 respectively, and a second bolt 9 is provided between the two bolt holes for fixing the outer sheath and the annular outer plate.

[0023] The inner wall of the outer sheath 5 matches the outer wall of the corrugated connecting cylinder 3.

[0024] The diameter of the lower port of the small-mouth connecting end 4 is the same as the diameter of the upper port of the corrugated connecting cylinder 3, while the diameter of the upper port of the small-mouth connecting end 4 is smaller than the diameter of the lower port of the small-mouth connecting end 4.

[0025] The outer diameter of the oil guide cylinder 2 is larger than the outer diameter of the oil inlet.

[0026] When in use, the oil guide sleeve is placed outside the oil inlet, and the chassis is fixedly connected to the box body with bolts.

[0027] In the above description, the chassis, oil guide cylinder, corrugated connecting cylinder, annular outer plate and outer end plate are all made of steel plate.

[0028] In the above description, the outer diameter of the oil guide cylinder and the corrugated connecting cylinder are the same, and both are matched with the oil intake pipe (oil filter pipe).

[0029] In the above description, the outer wall of the corrugated connecting pipe matches the inner wall of the outer sheath. There are two outer sheaths, with an extension plate at each end of the outer sheath. The two extension plates are fixed together by bolts.

[0030] Working principle:

[0031] In use, the chassis and oil guide cylinder are respectively fitted onto the outside of the oil inlet, and the chassis is fixedly connected to the box with bolts; then the oil inlet pipe (oil filter pipe) is fitted onto the outside of the corrugated connecting cylinder and fixed with the outer sheath; then a second bolt is provided between the bolt holes between the outer end plate and the annular outer plate for double fixing.

[0032] This invention enables a quick, secure, and sealed connection between the oil intake pipe and the oil intake port, significantly improving the efficiency and reliability of the oil filtration operation. It effectively avoids the problem of pipe loosening or falling off during the oil filtration process, further enhancing the convenience of connection, making it easy to use and simple to operate.

Claims

1. A photovoltaic transformer substation oil extraction auxiliary device, comprising a chassis (1) and an oil guide cylinder (2), characterized in that: The center of the chassis (1) is provided with an oil guide cylinder (2), the upper end of the oil guide cylinder (2) is provided with a corrugated connecting cylinder (3), the upper end of the corrugated connecting cylinder (3) is provided with a small opening connecting end (4), and the outer sheath (5) is connected to the outside of the corrugated connecting cylinder (3) by a first bolt (6).

2. The photovoltaic transformer substation oil extraction auxiliary device according to claim 1, characterized in that: The chassis (1) has a circular oil outlet at its center and an oil guide cylinder (2) above the circular oil outlet. Bolt holes (101) are provided around the edges of the chassis (1) for fixing the oil outlet of the chassis (1).

3. The photovoltaic transformer substation oil extraction auxiliary device according to claim 1, characterized in that: The outer sheath (5) consists of two shells, each in a semi-circular shape, and is fixed by the first bolt (6).

4. The photovoltaic transformer substation oil extraction auxiliary device according to claim 1, characterized in that: The outer wall of the upper port of the oil guide cylinder (2) is provided with an annular outer plate (7), and the outer wall of the outer sheath (5) is provided with an outer end plate (8). The annular outer plate (7) and the outer end plate (8) are respectively provided with bolt holes, and a second bolt (9) is provided between the two bolt holes.

5. The photovoltaic transformer substation oil extraction auxiliary device according to claim 1, characterized in that: The inner wall of the outer sheath (5) matches the outer wall of the corrugated connecting cylinder (3).

6. The photovoltaic transformer substation oil extraction auxiliary device according to claim 1, characterized in that: The diameter of the lower port of the small-mouth connecting end (4) is the same as the diameter of the upper port of the corrugated connecting cylinder (3), and the diameter of the upper port of the small-mouth connecting end (4) is smaller than the diameter of the lower port of the small-mouth connecting end (4).

7. The photovoltaic transformer substation oil extraction auxiliary device according to claim 1, characterized in that: The outer diameter of the oil guide cylinder (2) is larger than the outer diameter of the oil inlet.

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