Mounting structure for box-type substation and box-type power transformation system

Abstract

The utility model provides a mounting structure for a box-type substation and a box-type power transformation system. The installation structure for the box-type substation comprises an installation foundation which is constructed to be arranged above the ground and comprises a gravel sand inclusion layer and / or a concrete layer; the channel steel structure is used for installing the box-type substation, the channel steel structure is placed on the installation foundation, the channel steel structure and the installation foundation are independently arranged and carry out projection in the vertical direction, the projection of the installation foundation can cover the projection of the channel steel structure, the channel steel structure comprises a wiring channel, and a cable can reach the wiring position of the box-type substation through the wiring channel. According to the technical scheme, the installation structure for the box-type transformer substation can solve the problem that when the installation structure in the prior art is used for installing the box-type transformer substation, due to the fixity of the installation structure, once the box-type transformer substation is installed, the box-type transformer substation is difficult to move or be used for the second time, and the flexibility of the installation structure is low.

Description

Technical Field

[0001] The utility model relates to the technical field of box-type substations, and in particular to an installation structure for box-type substations and a box-type power transformation system. Background Art

[0002] With the acceleration of urbanization, the demand for urban power grid construction and renovation is growing. Traditional civil substations, due to their long construction periods, large footprints, and high maintenance costs, are gradually failing to meet the needs of the rapid development of modern urban power grids. Therefore, box-type substations, as a new type of substation, are gaining popularity due to their compactness, efficiency, and flexibility. Box-type substations, also known as prefabricated substations or prefabricated substations, are factory-fabricated indoor and outdoor compact power distribution equipment that integrates high-voltage switchgear, distribution transformers, and low-voltage distribution equipment according to a specific wiring scheme. This equipment organically combines transformer step-down and low-voltage power distribution functions within a fully enclosed steel structure box with multiple protection features, including moisture-proofing, rust-proofing, dust-proofing, rodent-proofing, fire-proofing, anti-theft, and heat-insulating.

[0003] Box-type substations have the following advantages: 1) Compactness: Since all equipment is prefabricated and integrated into a box at the factory, it occupies a small area and is easy to install. 2) Mobility: The box design allows the entire substation to be moved, facilitating rapid deployment in different locations. 3) Protection: The fully enclosed design of the box provides good protection and extends the service life of the equipment. However, despite the many advantages of box-type substations, when using the existing installation structure for installation, due to the fixed nature of the installation structure, once the box-type substation is installed, it is difficult to move or reuse it, limiting its flexibility. Utility Model Content

[0004] The main purpose of the present utility model is to provide a mounting structure and a box-type substation system for a box-type substation, which can solve the problem of low flexibility of the mounting structure when the box-type substation is installed using the mounting structure of the existing technology, that is, due to the fixed nature of the mounting structure, once the box-type substation is installed, it is difficult to move or reuse it.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, an installation structure for a box-type substation is provided, including: an installation base, which is constructed to be set above the ground, and the installation base includes a gravel and sand layer and / or a concrete layer; a channel steel structure, which is used to install the box-type substation, and the channel steel structure is placed on the installation base. The channel steel structure and the installation base are set independently of each other and projected in the vertical direction. The projection of the installation base can cover the projection of the channel steel structure. The channel steel structure includes a wiring channel, and the cable can reach the wiring position of the box-type substation through the wiring channel.

[0006] Furthermore, the gravel-sand layer is made by mixing sand and gravel in a preset volume ratio.

[0007] Furthermore, the preset volume ratio is in the range of 35:65 to 45:55; and / or the compaction coefficient of the gravel and sand layer is in the range of 0.93 to 0.98.

[0008] Further, when the installation foundation includes a crushed stone and sand layer and a concrete layer, the crushed stone and sand layer is located above the concrete layer.

[0009] Furthermore, a plurality of steel bars are arranged in the gravel and sand layer, and the outer surfaces of the steel bars are coated with a first anti-corrosion layer.

[0010] Furthermore, the outer surface of the channel steel structure is coated with a second anti-corrosion layer and a first waterproof layer in sequence from the inside to the outside.

[0011] Furthermore, the channel steel structure also includes at least two layers of basic installation units spaced apart in the vertical direction, and a connecting structure is connected between two adjacent layers of basic installation units. Each layer of basic installation units includes multiple channel steels spaced apart in the first direction, and the connecting structure includes multiple channel steels spaced apart in the second direction. The basic installation units located on the top layer are constructed to be connected to the box-type substation.

[0012] Furthermore, when projected in the vertical direction, the projection of the channel steel structure can cover the projection of the box-type substation. The channel steel structure also includes a plurality of lifting lugs, which are arranged at intervals along the circumference of the channel steel structure, and the lifting lugs protrude from the outer circumference of the box-type substation. When projected in the vertical direction, the projection of the channel steel structure can cover the projection of the box-type substation. The channel steel structure also includes a plurality of lifting lugs, which are arranged at intervals along the circumference of the channel steel structure, and the lifting lugs protrude from the outer circumference of the box-type substation.

[0013] Furthermore, the outer surface of the lifting lug is coated with a third anti-corrosion coating and a second waterproof coating in sequence from the inside to the outside.

[0014] According to another aspect of the present invention, a box-type substation system is provided, comprising: a box-type substation; and the above-mentioned installation structure for the box-type substation, wherein the box-type substation is installed on a channel steel structure.

[0015] By applying the technical solution of the present invention, the installation base is installed on the ground and is located above the ground, the channel steel structure is placed on the installation base, and the box-type substation is installed on the channel steel structure, that is, the installation structure and the box-type substation of the present application are both located above the ground. Since the channel steel structure and the installation base are set independently of each other, when the installation position of the box-type substation needs to be adjusted, the box-type substation can be transported to the new installation position together with the channel steel structure through lifting equipment, which can realize the movement and secondary utilization of the channel steel structure and improve the flexibility of the installation structure of the box-type substation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0017] In the picture:

[0018] Figure 1 A top view of a box-type power transformation system according to an embodiment of the present utility model is shown;

[0019] Figure 2 Shown Figure 1 Cross-sectional view at AA;

[0020] Figure 3 Shown Figure 1 Cross-sectional view at BB.

[0021] The above drawings include the following reference numerals:

[0022] 10. Installation foundation; 11. Gravel and sand layer; 12. Concrete layer; 20. Channel steel structure; 21. Basic installation unit; 22. Connection structure; 30. Box-type substation. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] See also Figures 1 to 3 As shown, the utility model provides an installation structure for a box-type substation, which includes: an installation base 10, which is constructed to be set above the ground, and the installation base 10 includes a gravel and sand layer 11 and / or a concrete layer 12; a channel steel structure 20, which is used to install a box-type substation 30, and the channel steel structure 20 is placed on the installation base 10. The channel steel structure 20 and the installation base 10 are set independently of each other and projected in the vertical direction. The projection of the installation base 10 can cover the projection of the channel steel structure 20, and the channel steel structure 20 includes a wiring channel, and the cable can reach the wiring position of the box-type substation 30 through the wiring channel.

[0025] In this embodiment, the mounting base 10 is mounted on the ground and is located above the ground. The channel steel structure 20 is placed on the mounting base 10, and the box-type substation 30 is mounted on the channel steel structure 20. That is, the mounting structure of the present application and the box-type substation 30 are both located above the ground. The box-type substation 30 does not directly contact the ground, which can prevent mice from entering the box-type substation 30 and can also prevent water from accumulating on the ground from entering the box-type substation 30 to a certain extent. The channel steel structure 20 includes a wiring channel, and the cables can reach the wiring position of the box-type substation 30 through the wiring channel. Compared with the concrete foundation that requires a special cable trench, the mounting structure of the box-type substation of the present application does not require an additional wiring structure, and the cables are more convenient to enter and exit between the channel steels. In addition, since the channel steel structure 20 and the mounting base 10 are independently arranged, when the installation position of the box-type substation 30 needs to be adjusted, the box-type substation 30 can be transported to the new installation position together with the channel steel structure 20 by hoisting equipment, which can realize the movement and secondary use of the channel steel structure 20, thereby improving the flexibility of the mounting structure of the box-type substation.

[0026] In one embodiment of the present invention, the gravel-sand layer 11 is made by mixing sand and gravel in a preset volume ratio.

[0027] In one embodiment, the gravel and sand layer 11 is 1 meter thick, and the outer edge of the gravel and sand layer 11 protrudes 1 meter from the outer edge of the box-type substation 30. The sand is coarse sand with good particle grading and hard texture. The maximum particle size of the gravel is not greater than 20 mm, and the sand and gravel must not contain organic impurities such as grass roots.

[0028] In this embodiment, the gravel has high compressive strength, and the sand fills the gaps between the gravel, which can improve the overall bearing capacity of the gravel-sand layer 11. In addition, since sand and gravel are not easily frozen and expanded at low temperatures, the structural stability of the gravel-sand layer 11 can be ensured.

[0029] In one embodiment of the present invention, the preset volume ratio ranges from 35:65 to 45:55.

[0030] Through the above arrangement, on the one hand, the structural stability of the gravel and sand layer 11 can be ensured, and on the other hand, the amount of material used can be reduced and the cost can be lowered while meeting the engineering requirements.

[0031] In one embodiment of the present invention, the compaction coefficient of the gravel and sand layer 11 ranges from 0.93 to 0.98.

[0032] The above arrangement can not only ensure the structural stability of the gravel and sand layer 11 , but also reduce the penetration of water, thereby preventing water from freezing and expanding in volume under low temperature conditions, thereby preventing the gravel and sand layer 11 from being damaged.

[0033] See also Figures 1 to 3 As shown, in one embodiment of the present invention, when the installation base 10 includes a crushed stone and sand layer 11 and a concrete layer 12 , the crushed stone and sand layer 11 is located above the concrete layer 12 .

[0034] In this embodiment, the gravel and sand layer 11 is located above the concrete layer 12 , which can reduce the moisture that penetrates into the concrete layer 12 and prevent the moisture from freezing and expanding in volume under low temperature conditions, thereby damaging the concrete layer 12 .

[0035] In one embodiment of the present invention, a plurality of steel bars are arranged in the gravel and sand layer 11 , and the outer surfaces of the steel bars are coated with a first anti-corrosion layer.

[0036] In this embodiment, the provision of multiple steel bars can improve the structural strength of the gravel and sand layer 11. The outer surface of the steel bars is coated with a first anti-corrosion layer, which can protect the steel bars from corrosion and extend the service life of the steel bars.

[0037] In one embodiment of the present invention, the outer surface of the channel steel structure 20 is coated with a second anti-corrosion layer and a first waterproof layer in sequence from the inside to the outside.

[0038] Through the above arrangement, the channel steel structure 20 can be protected against corrosion and against water.

[0039] See also Figures 1 to 3 As shown, in one embodiment of the present invention, the channel steel structure 20 also includes at least two layers of basic installation units 21 spaced apart in the vertical direction, and a connecting structure 22 is connected between two adjacent layers of basic installation units 21. Each layer of basic installation units 21 includes a plurality of channel steels spaced apart in a first direction, and the connecting structure 22 includes a plurality of channel steels spaced apart in a second direction. The basic installation units 21 located on the top layer are constructed to be connected to the box-type substation 30.

[0040] In this embodiment, two adjacent layers of basic installation units 21 are connected by a connecting structure 22. The basic installation unit 21 on the top layer is connected to the box-type substation 30, thereby achieving the installation of the box-type substation 30. The basic installation unit 21 on the top layer refers to the basic installation unit 21 located at the top and closest to the box-type substation 30.

[0041] In one embodiment, the size of the channel steel structure 20 is consistent with the size of the box-type substation 30. The height of the channel steel structure 20 ranges from 400 mm to 600 mm. The number of basic installation units 21 and the number of channel steels of the connecting structure 22 can be adjusted according to the weight of the box-type substation 30 to make the channel steel structure 20 more secure and increase its bearing capacity.

[0042] It should be noted that the channel steel structure 20 has the following advantages: low economic cost, low construction difficulty, short construction period, high utilization rate and durability, green and environmentally friendly, reusable, no construction waste will be generated when dismantled, can be recycled and reused, good environmental performance, the channel steel can be recycled, and when using an oil-immersed transformer, it is convenient to add an accident oil pool at the bottom of the box-type substation 30.

[0043] Specifically, the channel steel model adopts GB707-1988. The multiple channel steels of the basic installation unit 21 on each floor are welded together, the multiple channel steels of the connecting structure 22 are welded together, and the basic installation unit 21 on the top floor is welded to the box-type substation 30. The channel steel structure 20 is painted with three-proof paint, which can slow down the corrosion rate of the channel steel structure 20 in saline-alkali soil and extend the service life of the channel steel structure 20. The following points should be noted when welding the channel steel structure 20: Before welding the channel steel, clean the surface of the channel steel to ensure the quality of the welded joint. The surface of the channel steel can be treated with tools such as a grinder; select appropriate welding electrodes according to the material and thickness of the channel steel to ensure welding strength and quality; reduce the welding area to avoid welding deformation and improve welding quality. After the entire channel steel structure 20 is welded, apply three-proof paint to slow down the corrosion rate of the channel steel structure 20 in saline-alkali soil and extend the service life of the channel steel structure 20.

[0044] See also Figures 1 to 3 As shown, in one embodiment of the present invention, the projection of the channel steel structure 20 can cover the projection of the box-type substation 30 when projected in the vertical direction. The channel steel structure 20 also includes a plurality of lifting ears, which are arranged at intervals along the circumference of the channel steel structure 20, and the lifting ears protrude from the outer peripheral surface of the box-type substation 30.

[0045] In this embodiment, the provision of the lifting lugs facilitates the transportation of the channel steel structure 20 by using existing lifting equipment.

[0046] In one embodiment of the present invention, the outer surface of the lifting ear is coated with a third anti-corrosion coating and a second waterproof coating in sequence from the inside to the outside.

[0047] Through the above arrangement, the lifting lug can be protected against corrosion and water.

[0048] See also Figures 1 to 3 As shown, according to another aspect of the present invention, a box-type substation system is provided, comprising: a box-type substation 30 ; and the above-mentioned installation structure for the box-type substation, wherein the box-type substation 30 is installed on the channel steel structure 20 .

[0049] In this embodiment, the box-type substation installation structure of the box-type substation system has all the technical solutions and all the technical effects of the above-mentioned box-type substation installation structure, which will not be repeated here.

[0050] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: the installation base is installed on the ground and is located above the ground, the channel steel structure is placed on the installation base, and the box-type substation is installed on the channel steel structure, that is, the installation structure and the box-type substation of the present application are both located above the ground. Since the channel steel structure and the installation base are set independently of each other, when the installation position of the box-type substation needs to be adjusted, the box-type substation can be transported to the new installation position together with the channel steel structure through lifting equipment, which can realize the movement and secondary utilization of the channel steel structure and improve the flexibility of the installation structure of the box-type substation.

[0051] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0052] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A mounting structure for a box-type substation, characterized in that: include: An installation base (10) is configured to be arranged above the ground, wherein the installation base (10) includes a crushed stone and sand layer (11) and / or a concrete layer (12); A channel steel structure (20) is used to install a box-type substation (30), wherein the channel steel structure (20) is placed on the installation base (10), the channel steel structure (20) and the installation base (10) are independently arranged, and when projected in the vertical direction, the projection of the installation base (10) can cover the projection of the channel steel structure (20), and the channel steel structure (20) includes a wiring channel, and cables can reach the wiring position of the box-type substation (30) through the wiring channel; The channel steel structure (20) further comprises at least two layers of basic installation units (21) spaced apart along the vertical direction, a connection structure (22) being connected between two adjacent layers of the basic installation units (21), each layer of the basic installation units (21) comprising a plurality of channel steels spaced apart along a first direction, the connection structure (22) comprising a plurality of channel steels spaced apart along a second direction, and the basic installation units (21) located on the top layer being configured to be connected to the box-type substation (30).

2. The installation structure for a box-type substation according to claim 1, characterized in that: The gravel-sand layer (11) is made by mixing sand and gravel in a preset volume ratio.

3. The installation structure for a box-type substation according to claim 2, characterized in that: The preset volume ratio has a value range of 35:65 to 45:55; and / or the compaction coefficient of the gravel and sand layer (11) has a value range of 0.93 to 0.

98.

4. The installation structure for a box-type substation according to claim 1, characterized in that: When the installation base (10) includes the crushed stone and sand layer (11) and the concrete layer (12), the crushed stone and sand layer (11) is located above the concrete layer (12).

5. The installation structure for a box-type substation according to claim 1, characterized in that: A plurality of steel bars are arranged in the gravel and sand layer (11), and the outer surfaces of the steel bars are coated with a first anti-corrosion layer.

6. The installation structure for a box-type substation according to claim 1, characterized in that: The outer surface of the channel steel structure (20) is coated with a second anti-corrosion layer and a first waterproof layer in sequence from the inside to the outside.

7. The installation structure for a box-type substation according to claim 1, characterized in that: When projected along the vertical direction, the projection of the channel steel structure (20) can cover the projection of the box-type substation (30), and the channel steel structure (20) further includes a plurality of lifting lugs, which are arranged at intervals along the circumference of the channel steel structure (20), and the lifting lugs protrude from the outer peripheral surface of the box-type substation (30).

8. The installation structure for a box-type substation according to claim 7, characterized in that: The outer surface of the lifting lug is coated with a third anti-corrosion coating and a second waterproof coating in sequence from the inside to the outside.

9. A box-type power transformation system, characterized in that: include: Box-type substation (30); as well as The installation structure for a box-type substation according to any one of claims 1 to 8, wherein the box-type substation (30) is installed on the channel steel structure (20).

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