A steel structure foundation transformer oil tank

Abstract

This utility model relates to the field of transformer oil tank technology, specifically to a steel structure foundation transformer oil tank, including a steel frame, steel structure supports, and several first grating plates. The steel frame includes several longitudinal beams and several transverse beams, with the longitudinal beams running the entire length. Several transverse beams are welded to the longitudinal beams. The steel frame is nested and fitted with the inner walls of the oil tank. The steel structure supports are welded below the intersection of the longitudinal beams and transverse beams. Several first grating plates are laid on top of the steel frame, and pebbles are filled between the oil tank and the first grating plates. This utility model's steel structure foundation transformer oil tank, formed by welding the steel structure supports and steel frame into an integral steel structure foundation, has good structural stability. It can be prefabricated and installed as a whole, resulting in high installation efficiency. Furthermore, the first grating plates are laid out for easy assembly and disassembly, facilitating the replacement and cleaning of pebbles by disassembling specific sections of the first grating plates.

Description

Technical Field

[0001] This utility model relates to the field of transformer oil tank technology, specifically to a steel structure foundation transformer oil tank. Background Technology

[0002] Underneath transformers, an oil trough filled with pebbles is typically installed to collect transformer oil leaking during operation. This prevents the oil from flowing directly onto the ground and spreading to the surrounding equipment or soil, thus avoiding pollution. At the same time, the pebbles in the oil trough block direct contact between the oil and the ground, reducing the risk of the ground heating up and igniting other materials, lowering the local oil concentration, slowing the spread of fire, and buying time for firefighting.

[0003] Existing transformer oil tanks generally use a reinforced concrete structure with a steel grating foundation. However, the on-site casting and pre-embedding process for this type of foundation is time-consuming and labor-intensive. For example, Chinese utility model patent CN213267976U discloses a new type of main transformer steel grating support structure. In order to reduce the on-site casting and pre-embedding process, a steel grating is set on a concrete pier, and a pebble layer is laid on the steel grating to form the structure. However, the steel grating is directly set on the top surface of the concrete pier, resulting in poor structural stability. Under the pressure of the pebbles, there is a risk of displacement and collapse. Moreover, after long-term use, the pebbles are easily contaminated by transformer oil and lose their protective effect, requiring complete replacement, which is costly. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of existing transformer oil tanks in the prior art, such as the risk of displacement and collapse, and the difficulty in replacing and cleaning pebbles, and to provide a steel structure foundation transformer oil tank.

[0005] This utility model provides a steel structure foundation transformer oil tank, comprising:

[0006] A steel frame, comprising several longitudinal beams and several transverse beams, wherein the longitudinal beams are arranged along the entire length, and the transverse beams are welded to the longitudinal beams, and the steel frame is nested and fitted with the inner walls of the oil tank.

[0007] A steel structure support pier, which is welded below the intersection of the longitudinal beam and the transverse beam;

[0008] A first grating plate, several of the first grating plates are laid on top of the steel frame, and pebbles are filled between the oil tank and the first grating plate.

[0009] This utility model discloses a steel structure foundation transformer oil tank, which forms an integral steel structure foundation by welding steel structure piers and steel frame. The structure has good stability and can be prefabricated by welding as a whole for installation, resulting in high installation efficiency. At the same time, the first grating plate is installed in a paving form, which is easy to install and remove, and facilitates the replacement and cleaning of pebbles after disassembling the first grating plate in a certain area.

[0010] Preferably, the longitudinal sidewalls of at least two longitudinal beams are fitted to the inner wall of the oil tank, and the longitudinal sidewalls of several of the transverse beams are fitted to the inner wall of the oil tank.

[0011] Preferably, the bottom of the steel structure support is provided with an abutment plate, and the projected area of ​​the abutment plate at the bottom of the oil tank is greater than the projected area of ​​the steel structure support at the bottom of the oil tank.

[0012] Preferably, the steel structure support includes prism support or cylindrical support.

[0013] Preferably, the steel structure support includes a channel steel composite component, the longitudinal beam includes channel steel members, and the transverse beam includes channel steel members.

[0014] Preferably, the top surface of the steel frame is provided with columns, the columns are arranged opposite to the steel structure supports, the top of the columns is provided with a second grid plate, and pebbles are filled between the first grid plate and the second grid plate.

[0015] Preferably, the height of the steel structure support is less than the height of the column.

[0016] Preferably, the top surface of the second grating plate is flush with the top surface of the oil tank.

[0017] Preferably, a partition mesh is embedded between adjacent columns.

[0018] Preferably, the column is provided with a sliding groove, and the partition mesh plate slides in conjunction with the sliding groove.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. This utility model provides a steel structure foundation transformer oil tank, which forms an integral steel structure foundation by welding steel structure supports and steel frame, resulting in good structural stability;

[0021] 2. This utility model provides a steel structure foundation transformer oil tank, which can be prefabricated by welding as a whole and then installed, resulting in high installation efficiency;

[0022] 3. This utility model provides a steel structure foundation transformer oil tank. The first grating plate is installed in a paving form, which is easy to install and remove. This facilitates the replacement and cleaning of pebbles after the first grating plate is partially disassembled. Attached Figure Description

[0023] Figure 1 This is a cross-sectional structural diagram of a steel-structured transformer oil tank according to Example 1.

[0024] Figure 2 This is a top view of a steel structure foundation transformer oil tank according to Example 1.

[0025] Figure 3 This is a structural schematic diagram of the steel frame and the steel structure support pier described in Example 1.

[0026] Figure 4 This is a structural schematic diagram of the steel frame structural members and steel structure supports (with abutment plates) described in Example 1.

[0027] Figure 5 This is a schematic diagram of another steel structure foundation transformer oil tank in Example 1.

[0028] Figure 6 This is a structural schematic diagram of the steel frame, the steel structure support, and the column described in Example 1.

[0029] Figure 7 This is a cross-sectional schematic diagram of another steel structure foundation transformer oil tank in Example 1.

[0030] Figure 8 This is a structural schematic diagram of the steel frame, the column, and the partition mesh plate in Embodiment 1.

[0031] Marked in the image:

[0032] 1-Steel frame, 11-Longitudinal beam, 12-Horizontal beam, 2-Steel structure support, 21-Bottoming plate, 3-First grating plate, 4-Pebbles, 5-Column, 6-Second grating plate, 7-Separating mesh plate, 8-Oil pool. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0034] Unless otherwise specified, the terms "upper," "lower," "left," "right," "center," "inner," and "outer" used in the description of specific embodiments of this utility model to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is usually placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, and for enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," "parallel," and "coaxial" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, parallel, or coaxial. Slight tilt or deviation is permissible, as long as it does not affect the normal function of the relevant component. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be perfectly horizontal; a slight tilt is acceptable. "Coaxial" means that two components are arranged as coaxially as possible, allowing them to move coaxially or approximately coaxially when their relative positions change. Alternatively, it can be simplified to mean that the corresponding device / component / element, when arranged in "horizontal," "vertical," "suspended," "parallel," or "coaxial" directions, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. For example, the deviation in the "coaxial" direction is controlled within 0.2-1mm, preferably within 0.2-0.5mm. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0036] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0037] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0038] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "provided with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0039] Example 1

[0040] like Figures 1-3 As shown, a steel structure foundation transformer oil tank includes a steel frame 1, steel structure supports 2, and several first grating plates 3.

[0041] The steel frame 1 is assembled and welded from several longitudinal beams 11 and several transverse beams 12. The longitudinal beams 11 are continuous in length, equal to the length of the inner cavity of the oil tank 8 in the concrete structure. The transverse beams 12 are welded and connected between adjacent longitudinal beams 11 to form a grid-like steel frame 1 with intersecting longitudinal and transverse beams. The steel frame 1 is nested and fitted with the inner walls of the oil tank 8. Steel structure supports 2 are welded and installed below each intersection of the longitudinal beams 11 and transverse beams 12. The steel structure supports 2 support the steel frame 1, so that the steel frame 1 and the bottom of the oil tank 8 maintain a stable distance. Several first grating plates 3 are then laid on the top of the steel frame 1. Pebbles 4 are filled between the oil tank 8 and the first grating plates 3 to form the steel structure foundation transformer oil tank 8 corresponding to the transformer equipment above.

[0042] In an optional embodiment, the longitudinal sidewalls of the longitudinal beams 11 located on both sides of the steel frame 1 are fitted to the inner wall of the oil tank 8, and the longitudinal sidewalls of the transverse beams 12 located at both ends of the steel frame 1 are fitted to the inner wall of the oil tank 8, so that the steel frame 1 has a rectangular outer frame that fits to the inner wall of the oil tank 8, and the steel frame 1 as a whole is limited by the oil tank 8, making it difficult to shift or deform.

[0043] In an optional embodiment, the longitudinal beam 11 can be a single or double-welded channel steel member, with the top of the longitudinal beam 11 kept flat to facilitate the installation of the first grating plate 3. The crossbeam 12 can be a segmented channel steel member or a double-welded channel steel member, with the top surface of the crossbeam 12 kept flat and flush with the longitudinal beam 11, so that the top surface of the steel frame 1 is a whole plane, which facilitates the flat installation of the first grating plate 3.

[0044] In an optional embodiment, the number of longitudinal beams 11 and transverse beams 12 can be adjusted according to the actual situation to achieve densification or widening of the grid space formed by the steel frame 1. Densification by reducing the spacing can improve the local structural strength, while widening the spacing can reduce the amount of material used and reduce the manufacturing cost.

[0045] In optional embodiments, the steel structure support 2 can be a prism support or a cylindrical support, a channel steel composite component, a steel pipe composite component, or a solid steel component, so as to stably support the steel frame 1 through the steel structure support 2 with high structural strength, and prevent the steel frame 1 from shifting or deforming in the oil tank 8. The various structures are welded together to form a steel structure foundation of the steel frame 1 and the steel structure support 2 welded as a whole, providing a structurally stable steel structure foundation transformer oil tank 8.

[0046] In an optional embodiment, the first grating plate 3 is a rectangular grid plate structure. The size of the first grating plate 3 can be set according to the size of the intersection of the crossbeam 12 and the longitudinal beam 11, so that the four corners of the first grating plate 3 are located at the center of the top surface of the steel structure support 2. When the first grating plate 3 bears the weight of people walking or equipment being placed above, the force can be distributed along the steel frame 1 and the steel structure support 2, which is conducive to improving the overall structural stability.

[0047] In optional implementations, such as Figure 4 As shown, an abutment plate 21 can be installed at the bottom of the steel structure support 2. The projected area of ​​the abutment plate 21 at the bottom of the oil tank 8 is larger than the projected area of ​​the steel structure support 2 at the bottom of the oil tank 8. This is to disperse the axial force of the steel structure support 2 acting on the bottom of the oil tank 8 through the abutment plate 21, so as to avoid the concentrated force at the contact position between the steel structure support 2 and the bottom surface of the oil tank 8, which could damage the oil tank 8.

[0048] In an optional embodiment, the abutment plate 21 can be a steel plate component with a thickness of not less than 5mm. The abutment plate 21 can be circular or rectangular. The abutment plate 21 is welded to the bottom of the steel structure support 2 and forms a surface contact with the bottom surface of the oil tank 8.

[0049] In one or more implementations, such as Figures 5-7 As shown, a column 5 can also be set on the top surface of the steel frame 1. The column 5 and the steel structure support 2 are set opposite each other vertically. The top of the column 5 is provided with a second grid plate 6. Pebbles 4 can be filled between the first grid plate 3 and the second grid plate 6 to form a double-layer steel structure foundation. With the overall height of the oil tank 8 remaining unchanged, it is beneficial to reduce the spacing between adjacent layers, further increase the structural strength of the steel structure foundation, and facilitate the replacement or cleaning of the single-layer pebbles 4, reducing the difficulty of replacement and cleaning.

[0050] In an optional embodiment, the space between the steel frame 1 and the bottom of the oil tank 8 may not be filled with pebbles 4, but only in the area between the first grid plate 3 and the second grid plate 6, so that there is a gap between the pebbles 4 and the bottom of the oil tank 8 to facilitate the flow of oil.

[0051] In an optional embodiment, the height of the steel structure pier 2 is set less than the height of the column 5. The height of the steel structure pier 2 can be set to 10cm-20cm, which is relatively small compared to the overall height of the oil tank 8, and can stably support the steel frame 1 to form a structurally stable steel structure foundation.

[0052] In optional implementations, such as Figure 7 As shown, the top surface of the second grating plate 6 can be flush with the top surface of the oil tank 8 to facilitate personnel movement.

[0053] In one or more implementations, such as Figure 8 As shown, a partition mesh plate 7 can be embedded between adjacent columns 5 to divide the inner cavity of the oil tank 8 into multiple cavities. Each cavity is filled with pebbles 4, which facilitates the replacement or cleaning of the pebbles 4 in a single cavity, further reducing the difficulty of replacement and cleaning.

[0054] In an optional embodiment, the column 5 is provided with a vertical groove, and the partition mesh plate 7 slides in the groove. This facilitates the installation of the partition mesh plate 7, ensures a stable connection between the partition mesh plate 7 and the column 5, and forms a structurally stable steel structure foundation.

[0055] This embodiment describes a steel structure foundation transformer oil tank. In use, a steel frame 1 and steel structure supports 2 can be prefabricated near the oil tank 8 or in a factory, and then welded together to form a steel structure foundation. This allows for the overall installation of the steel structure foundation into the oil tank 8, resulting in high efficiency in foundation preparation and installation, and good structural stability. After the steel structure foundation is placed in the oil tank 8, pebbles 4 are laid inside the oil tank 8, and a first grating plate 3 is then laid on the top surface of the steel frame 1, forming an integral steel structure foundation transformer oil tank 8. The integral steel structure foundation is formed by welding the steel structure supports 2 and the steel frame 1, resulting in good structural stability. Furthermore, the first grating plate 3 and the second grating plate 6 are both laid out, making them easy to install and remove. This facilitates the replacement and cleaning of pebbles 4 by disassembling a portion of the first grating plate 3. Combined with vertically arranged partition plates 7, the pebbles 4 are divided into zones, enabling rapid replacement or cleaning of pebbles 4 in specific areas and reducing the difficulty of replacement and cleaning.

[0056] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steel-structured transformer oil tank, characterized in that, include: A steel frame (1) includes several longitudinal beams (11) and several transverse beams (12). The longitudinal beams (11) are arranged along the entire length, and the transverse beams (12) are welded to the longitudinal beams (11). The steel frame (1) is nested and fitted with the inner walls of the oil tank (8). A steel structure support (2) is welded below the intersection of the longitudinal beam (11) and the transverse beam (12); First grating (3), several first gratings (3) are laid on top of the steel frame (1), and pebbles (4) are filled between the oil tank (8) and the first gratings (3).

2. The steel structure foundation transformer oil bath according to claim 1, characterized in that, The longitudinal sidewalls of at least two longitudinal beams (11) are fitted to the inner wall of the oil tank (8), and the longitudinal sidewalls of several of the transverse beams (12) are fitted to the inner wall of the oil tank (8).

3. The steel structure foundation transformer oil bath according to claim 1, characterized in that, The bottom of the steel structure support (2) is provided with an abutment plate (21), and the projected area of ​​the abutment plate (21) at the bottom of the oil tank (8) is greater than the projected area of ​​the steel structure support (2) at the bottom of the oil tank (8).

4. The steel structure foundation transformer oil bath according to claim 3, characterized in that, The steel structure support (2) includes prismatic support or cylindrical support.

5. A steel-structured transformer oil bath according to claim 4, characterized in that, The steel structure support (2) includes a channel steel composite component, the longitudinal beam (11) includes a channel steel member, and the transverse beam (12) includes a channel steel member.

6. A steel-structured transformer oil bath according to any one of claims 1-5, characterized in that, The steel frame (1) is provided with a column (5) on its top surface. The column (5) is arranged opposite to the steel structure support (2). The top of the column (5) is provided with a second grid plate (6). Pebbles (4) are filled between the first grid plate (3) and the second grid plate (6).

7. A steel structure foundation transformer oil bath according to claim 6, characterized in that, The height of the steel structure support (2) is less than the height of the column (5).

8. A steel-structured transformer oil bath according to claim 6, characterized in that, The top surface of the second grating plate (6) is flush with the top surface of the oil tank (8).

9. A steel-structured transformer oil bath according to claim 8, characterized in that, A partition mesh plate (7) is embedded between adjacent columns (5).

10. A steel-structured transformer oil bath according to claim 9, characterized in that, The column (5) is provided with a sliding groove, and the partition mesh plate (7) slides in conjunction with the sliding groove.

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