A circumferential support structure to improve the overall rigidity of the machine pier

Abstract

This invention provides a circumferential support structure to improve the overall rigidity of the stator foundation. The circumferential support structure is arranged circumferentially between two adjacent stator foundation piers, and it passes through the inner side of the ventilation channel between the two stator foundation piers in a sealed manner. This invention features a compact structure. While ensuring the ventilation channel is adequately utilized, a circumferential support beam is installed between two adjacent stator foundation piers, connecting the circumferentially spaced stator foundation piers into a unified whole. This invention not only guarantees the required area of ​​the ventilation channel within the stator foundation but also improves the overall rigidity of the stator foundation, especially the circumferential rigidity of the structure. This is beneficial for improving the overall structural integrity and load-bearing capacity of the stator foundation, reducing unit vibration effects, and enhancing the safety of the stator foundation. This invention has a wide range of applications and significant technical and economic advantages.

Description

Technical Field

[0001] This utility model relates to the technical field of hydropower plant pier structure, specifically to a circumferential support structure for improving the overall rigidity of the pier. Background Technology

[0002] The generator pier structure of a hydroelectric powerhouse is an engineering structure that supports the generator. It bears all static and dynamic loads transmitted from the generator structure and transfers them to the substructure of the powerhouse. It is generally a reinforced concrete structure. Currently, to accommodate ventilation channels, stator foundation piers need to be spaced out along the circumference of the generator pier structure. Therefore, the stator foundation piers are arranged independently, which weakens the circumferential stiffness, integrity, and load-bearing capacity of the generator pier structure, thus reducing its safety. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a circumferential support structure that improves the overall rigidity of the machine pier, effectively solving the aforementioned problems.

[0004] The technical solution adopted in this utility model is as follows:

[0005] This utility model provides a circumferential support structure to improve the overall rigidity of the machine base. The circumferential support structure (3) is arranged circumferentially between two adjacent stator foundation bases (1), and the circumferential support structure (3) passes through the inner side of the ventilation channel (2) arranged between the two stator foundation bases (1).

[0006] Preferably, the circumferential support structure (3) is fitted to the inner top of the ventilation channel (2).

[0007] Preferably, the circumferential support structure (3) is rigidly connected to the stator foundation piers (1) on both sides.

[0008] Preferably, the circumferential support structure (3) is made of steel.

[0009] Preferably, the circumferential support structure (3) includes three sets of circumferential support units arranged radially; each set of circumferential support units includes two opposing first channel steels (3.1) and second channel steels (3.2); the first channel steels (3.1) and the second channel steels (3.2) are welded together; through holes (3.3) are formed inside the first channel steels (3.1) and the second channel steels (3.2).

[0010] This utility model provides a circumferential support structure that improves the overall rigidity of the machine pier, which has the following advantages:

[0011] This utility model features a compact structure. While ensuring adequate ventilation channels, a circumferential support beam is installed between two adjacent stator foundation piers, connecting the circumferentially spaced stator foundation piers into a unified whole. This utility model not only guarantees the required area of ​​the ventilation channels within the piers but also improves the overall rigidity of the piers, especially the circumferential rigidity of the pier structure. This is beneficial for improving the overall structural integrity and load-bearing capacity of the piers, reducing unit vibration effects, and enhancing the safety of the stator foundation. This utility model has a wide range of applications and significant technical and economic advantages. Attached Figure Description

[0012] Figure 1 This is a plan view of a circumferential support structure for improving the overall rigidity of a machine pier according to the present invention.

[0013] Figure 2 for Figure 1 AA cross-section view;

[0014] Figure 3 This is a detailed cross-sectional view of the circumferential support beam. Detailed Implementation

[0015] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0016] This utility model provides a circumferential support structure to improve the overall rigidity of the machine pier. Under the premise of ensuring the arrangement of the ventilation channel inside the machine pier and a certain ventilation area, a circumferential support beam is set between the stator foundation piers. The circumferential support beam is located on the inner side of the top of the ventilation channel and connects two adjacent stator foundation piers in the circumferential direction. The circumferential support beam is made of steel structure.

[0017] See Figure 1 This utility model provides a circumferential support structure to improve the overall rigidity of the stator foundation pier. The circumferential support structure 3 is arranged circumferentially between two adjacent stator foundation piers 1, and the ends of the circumferential support structure 3 are rigidly connected to the stator foundation piers 1 on both sides. Figure 1 In the diagram, 4 represents the stator foundation; 5 represents the lower frame foundation.

[0018] See Figure 2 The circumferential support structure 3 is sealed through the inner side of the ventilation channel 2 located between the two stator foundation piers 1, and the circumferential support structure 3 is in contact with the top of the inner side of the ventilation channel 2.

[0019] See Figure 3The circumferential support structure 3 is made of steel and is formed by welding channel steel. It includes three sets of circumferential support units arranged radially. Each set of circumferential support units includes two opposing first channel steels 3.1 and second channel steels 3.2. The first channel steels 3.1 and second channel steels 3.2 are welded together. Through holes 3.3 are formed inside the first channel steels 3.1 and second channel steels 3.2.

[0020] This utility model provides a circumferential support structure to improve the overall rigidity of the machine pier. The circumferential support structure is set between the stator foundation piers, and the two ends of the circumferential support structure are connected to the stator foundation piers arranged in a circumferential manner, thereby improving the circumferential rigidity and integrity of the stator foundation piers. The circumferential support structure is located on the inner side of the top of the ventilation channel. The circumferential support structure is made of steel and has a small width and height, which ensures the arrangement and area requirements of the ventilation channel inside the machine pier.

[0021] This utility model provides a circumferential support structure that improves the overall rigidity of the machine pier, which has the following advantages:

[0022] A circumferential support beam is installed between the stator foundation piers, connecting the circumferentially spaced stator foundation piers into a whole. This utility model not only ensures the layout and area requirements of the ventilation channels within the piers but also improves the overall rigidity of the piers, especially the circumferential rigidity of the pier structure. This is beneficial for improving the overall structural integrity and load-bearing capacity of the piers, reducing the vibration effect of the unit, and improving the safety of the stator foundation. It solves the problem of ventilation channels weakening the circumferential rigidity of the piers and reducing the overall structural integrity, load-bearing capacity, and safety. This utility model has a wide range of applications and obvious technical and economic advantages.

[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A circumferential support structure for improving the overall rigidity of a machine pier, characterized in that, The circumferential support structure (3) is arranged circumferentially between two adjacent stator foundation piers (1), and the circumferential support structure (3) seals through the inside of the ventilation channel (2) arranged between the two stator foundation piers (1).

2. The circumferential support structure for improving the overall rigidity of the machine pier according to claim 1, characterized in that, The circumferential support structure (3) is fitted to the inner top of the ventilation channel (2).

3. The circumferential support structure for improving the overall rigidity of the machine pier according to claim 1, characterized in that, The circumferential support structure (3) is rigidly connected to the stator foundation piers (1) on both sides.

4. A circumferential support structure for improving the overall rigidity of a machine pier according to claim 1, characterized in that, The circumferential support structure (3) is made of steel.

5. A circumferential support structure for improving the overall rigidity of a machine pier according to claim 1, characterized in that, The circumferential support structure (3) includes three sets of circumferential support units arranged radially; each set of circumferential support units includes two opposing first channel steels (3.1) and second channel steels (3.2); the first channel steels (3.1) and the second channel steels (3.2) are welded together; through holes (3.3) are formed inside the first channel steels (3.1) and the second channel steels (3.2).

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