Distribution transformer oil tank structure strengthening method

Abstract

The invention provides a distribution transformer oil tank structure reinforcing method. The method comprises the steps that reinforcing iron is added to the side wall of a distribution transformer oil tank body; and reinforcing iron is added to the bottom of the distribution transformer oil tank body. According to the method, an independent and firm external reinforcing frame does not need to be constructed, and structural redundancy and material waste are avoided by adding reinforcing iron to the side wall and the bottom of the distribution transformer oil tank body.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of distribution transformers, in particular to a distribution transformer oil tank structure reinforcing method. BACKGROUND

[0002] In the field of distribution transformers, the oil tank is a key component for containing the body and insulating medium, and its structural strength is crucial.

[0003] The existing oil tank reinforcing technology generally adopts the method of welding reinforcing ribs or reinforcing frames on the outer wall of the tank body, for example, a grid-shaped support structure is formed by welding channel steel, I-beam and other profiles, and the rigidity of the external components is used to improve the overall strength of the oil tank to cope with the huge pressure generated by internal short-circuit arc faults.

[0004] The existing scheme is to construct an independent and solid external reinforcing frame, and to integrate it with the oil tank wall through welding. However, for large transformers, it will lead to structural redundancy and material waste. SUMMARY

[0005] In order to solve one of the above technical defects, the application provides a distribution transformer oil tank structure reinforcing method.

[0006] A reinforcing iron is added to the side wall of the distribution transformer oil tank body; A reinforcing iron is added to the bottom of the distribution transformer oil tank body.

[0007] Optionally, the reinforcing iron is composed of low-alloy high-strength structural steel.

[0008] Optionally, the low-alloy high-strength structural steel is Q355B.

[0009] Optionally, the reinforcing iron is added to the side wall of the distribution transformer oil tank body, comprising: The reinforcing iron is added to the outer side of the side wall of the distribution transformer oil tank body.

[0010] Optionally, the reinforcing iron is added to the bottom of the distribution transformer oil tank body, comprising: The reinforcing iron is welded to the bottom of the distribution transformer oil tank body.

[0011] Optionally, the reinforcing iron added to the bottom is L-shaped.

[0012] Optionally, the reinforcing iron is added to the bottom of the distribution transformer oil tank body, comprising: The reinforcing iron is added to the weld of the bottom of the distribution transformer oil tank body.

[0013] Optionally, the L-shaped reinforcing iron matches the weld direction of the bottom of the distribution transformer oil tank body.

[0014] Optionally, the bottom further comprises an experimental support.

[0015] Optionally, the upper part of the power distribution transformer oil tank body has a tank cover.

[0016] The application provides a power distribution transformer oil tank structure reinforcing method, which comprises the following steps: adding reinforcing iron to the side wall of a power distribution transformer oil tank body; and adding reinforcing iron to the bottom of the power distribution transformer oil tank body. The method of the application does not need to construct an independent and solid external reinforcing frame, but avoids structural redundancy and material waste by adding reinforcing iron to the side wall and the bottom of the power distribution transformer oil tank body. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application. In the drawings: Figure 1 An implementation effect schematic diagram of a power distribution transformer oil tank structure reinforcing method provided by an embodiment of the application. DETAILED DESCRIPTION

[0018] In order to make the technical solutions and advantages of the embodiments of the application clearer, the exemplary embodiments of the application will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the application, rather than all the embodiments. It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other without conflict.

[0019] In the process of implementing the application, the inventors found that in the field of power distribution transformers, the oil tank is a key component for containing the body and insulating medium, and its structural strength is crucial. The existing oil tank reinforcing technology generally adopts the method of welding reinforcing ribs or reinforcing frames on the outer wall of the tank body, for example, a grid-shaped support structure is formed by welding channel steel, I-beam and other profiles, and the rigidity of the external components is used to improve the overall strength of the oil tank to cope with the huge pressure generated by internal short-circuit arc faults. The existing scheme is to construct an independent and solid external reinforcing frame, and to integrate it with the oil tank wall by welding. However, for large transformers, this will result in structural redundancy and material waste.

[0020] To solve the above problems, the application provides a power distribution transformer oil tank structure reinforcing method, which comprises the following steps: adding reinforcing iron to the side wall of a power distribution transformer oil tank body; and adding reinforcing iron to the bottom of the power distribution transformer oil tank body. The method of the application does not need to construct an independent and solid external reinforcing frame, but avoids structural redundancy and material waste by adding reinforcing iron to the side wall and the bottom of the power distribution transformer oil tank body.

[0021] Reference Figure 1The embodiment provides a power distribution transformer oil tank structure reinforcing method, which comprises the following steps: 1. Adding reinforcing iron to the side wall of the power distribution transformer oil tank body.

[0022] This process can realize side wall reinforcement.

[0023] For example, reinforcing iron is added to the outer side of the side wall of the power distribution transformer oil tank body.

[0024] The limit pressure of the power distribution transformer oil tank body part when the structure fails is significantly improved due to the addition of the reinforcing iron, and the reinforcing iron design for the weld thin part can also improve the explosion resistance of the entire oil tank.

[0025] 2. Adding reinforcing iron to the bottom of the power distribution transformer oil tank body.

[0026] This process can realize bottom reinforcement.

[0027] For example, reinforcing iron is welded to the bottom of the power distribution transformer oil tank body.

[0028] In the specific implementation, reinforcing iron can be added to the weld at the bottom of the power distribution transformer oil tank body.

[0029] If the reinforcing iron added to the bottom is L-shaped, the L-shaped reinforcing iron is matched with the weld trend of the bottom of the power distribution transformer oil tank body.

[0030] In addition, the bottom of the power distribution transformer oil tank body also comprises an experimental support.

[0031] The power distribution transformer oil tank body is provided with a tank cover above.

[0032] No matter whether the side wall is reinforced or the bottom is reinforced, the reinforcing iron used is composed of low-alloy high-strength structural steel.

[0033] The low-alloy high-strength structural steel can be Q355B.

[0034] The power distribution transformer oil tank structure reinforcing method provided by the embodiment is a kind of efficient oil tank structure reinforcing method specially designed for power distribution transformer. The power distribution transformer oil tank structure reinforcing method provided by the embodiment is no longer directly used or simply simplified for large transformer reinforcing technology, but is committed to a new path highly adapted to the cost structure, production process and strength demand of the power distribution transformer. By optimizing the structure form and force flow transmission path, the impact resistance and shock resistance performance of the oil tank are substantially improved with the lowest additional material and process cost, so that a reliable reinforcing method is provided for the widely used power distribution transformer.

[0035] The power distribution transformer oil tank structure strengthening method provided by the embodiment strengthens the steel plate at the weak position of the oil tank, enhances the structural strength of the power distribution transformer oil tank, and improves the anti-explosion capacity thereof.

[0036] The power distribution transformer oil tank structure strengthening method provided by the embodiment strengthens the side wall of the oil tank, which is the main stress surface. By adding a side wall reinforcing iron made of high-strength steel (such as Q355B) outside the side wall, the deformation of the tank wall is effectively constrained, the local stress is dispersed to a larger range, and thus the overall rigidity of the oil tank in resisting internal pressure and impact is significantly improved with the minimum increment of materials.

[0037] The power distribution transformer oil tank structure strengthening method provided by the embodiment strengthens the bottom weld, which is a structural weak link. By arranging an L-shaped reinforcing iron matching the weld direction at the position, the weld area is directly reinforced, the risk of weld cracking under extreme stress is effectively inhibited, and the structural integrity and fatigue resistance of the oil tank are improved.

[0038] Therefore, the power distribution transformer oil tank structure strengthening method provided by the embodiment is a "local targeted strengthening" method, which changes from passive dependence on the overall strength of the tank to active identification and strengthening of the key path, and finally constructs a power distribution transformer oil tank strengthening method with high reliability, high economy and high applicability.

[0039] Compared with the traditional large transformer external frame reinforcement technology and the current situation of no special reinforcement of the power distribution transformer, the power distribution transformer oil tank structure strengthening method provided by the embodiment has the following significant advantages in terms of structural efficiency, economy and reliability: 1. Significant economy: by abandoning the overall frame with high cost, the local targeted reinforcement design is adopted only in the key weak area, so that effective reinforcement is achieved with the lowest material and process cost, and the power distribution transformer special reinforcement has economic feasibility.

[0040] 2. Superior structural efficiency: based on the accurate analysis of the stress path, the local reinforcing member with optimized form is adopted, which maximizes the control of structural weight and volume while ensuring the reinforcement effect, and realizes the efficient lightweight design.

[0041] 3. Precise reliability improvement: through the targeted measures of strengthening the side wall pressure resistance and impact resistance and inhibiting the fatigue cracking of the bottom weld, the structural integrity and anti-explosion capacity of the oil tank under extreme conditions such as short circuit and vibration are directly improved.

[0042] 4. Good process adaptability: the local welding reinforcement method is highly consistent with the existing manufacturing process of the power distribution transformer, and does not require special tooling, which is convenient for implementation and promotion.

[0043] The embodiment provides a power distribution transformer oil tank structure reinforcing method, which comprises the following steps: adding reinforcing iron to the side wall of a power distribution transformer oil tank body; and adding reinforcing iron to the bottom of the power distribution transformer oil tank body. The method of the embodiment does not need to construct a separate and solid external reinforcing frame, but adds reinforcing iron to the side wall and the bottom of the power distribution transformer oil tank body, thereby avoiding structural redundancy and material waste.

[0044] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROMs, optical storage, etc.) containing computer-usable program code. The solutions in the embodiments of the present application can be implemented in various computer languages, such as the object-oriented programming language Java and the interpreted scripting language JavaScript.

[0045] The present application is described with reference to flowcharts and / or block diagrams according to the methods, devices (systems), and computer program products of the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of flows and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing apparatus to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing apparatus generate a means for implementing the functions specified in the flowcharts and / or block diagrams. Figure 1 The functions specified in one or more flows and / or blocks. Figure 1 The means for implementing the functions specified in one or more flows and / or blocks.

[0046] These computer program instructions can also be stored in a computer-readable memory capable of guiding a computer or other programmable data processing apparatus to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product comprising instruction means, which implements the functions specified in the flowcharts and / or block diagrams. Figure 1 The functions specified in one or more flows and / or blocks. Figure 1 The means for implementing the functions specified in one or more flows and / or blocks.

[0047] These computer program instructions can also be loaded into a computer or other programmable data processing apparatus, so that a series of operation steps are performed on the computer or other programmable data processing apparatus to produce a computer-implemented process, so that the instructions executed on the computer or other programmable data processing apparatus provide a means for implementing the functions specified in the flowcharts and / or block diagrams. Figure 1 The functions specified in one or more flows and / or blocks. Figure 1The steps of the function specified in one or more boxes.

[0048] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0049] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A method for strengthening the structure of a distribution transformer tank, characterized in that, The method includes: Reinforcing iron is added to the side wall of the distribution transformer tank body; Reinforcing iron is added to the bottom of the distribution transformer tank body.

2. The method according to claim 1, characterized in that, The reinforcing iron is made of low-alloy high-strength structural steel.

3. The method according to claim 2, characterized in that, The low-alloy high-strength structural steel is Q355B.

4. The method according to claim 1, characterized in that, The addition of reinforcing iron to the side wall of the distribution transformer tank body includes: Reinforcing iron is added to the outer side wall of the distribution transformer tank body.

5. The method according to claim 1, characterized in that, Adding reinforcing iron to the bottom of the distribution transformer tank body includes: Reinforcing iron is welded to the bottom of the distribution transformer tank body.

6. The method according to claim 1, characterized in that, The reinforcing iron added to the bottom is L-shaped.

7. The method according to claim 1, characterized in that, Adding reinforcing iron to the bottom of the distribution transformer tank body includes: Reinforcing iron is added to the weld at the bottom of the distribution transformer tank body.

8. The method according to claim 1, characterized in that, The L-shaped reinforcing iron is aligned with the weld seam at the bottom of the distribution transformer tank body.

9. The method according to claim 1, characterized in that, The bottom also includes an experimental support.

10. The method according to claim 1, characterized in that, The distribution transformer tank body has a cover on top.

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