A pre-embedded settlement observation point device for main transformer foundation

Abstract

This utility model discloses a pre-embedded settlement observation point device for a main transformer foundation, including an anchoring base installed within the main transformer foundation. The anchoring base extends beyond the surface of the main transformer foundation and is connected to a measuring and stabilizing tube. A measuring tube is provided on the measuring and stabilizing tube, and a measuring end is provided on the measuring end. A protective device is provided on the outside of the measuring end. This utility model is not affected by harsh construction environments such as high-intensity disturbance and high pollution during construction. During use, it can avoid mechanical damage and corrosion, which is conducive to long-term operation.

Description

Technical Field

[0001] This utility model relates to the field of power equipment foundation monitoring technology, and in particular to a pre-embedded settlement observation point device for main transformer foundation. Background Technology

[0002] The main transformer (referred to as "main transformer") is the core equipment of a substation. Its foundation is typically a large-volume concrete structure, bearing enormous static and dynamic loads (such as short-circuit electrodynamics and wind loads). The safe and stable operation of the power system places extremely stringent requirements on the settlement control of the main transformer foundation. Uneven settlement is one of the main causes of damage to the main transformer equipment. The industry standard "Technical Specification for Substation Building Structure Design (DL / T5457)" clearly stipulates that the main transformer foundation must undergo long-term, continuous, and high-precision monitoring during the construction, acceptance, and operation periods to ensure the stable operation of the main transformer.

[0003] Traditional main transformer settlement monitoring structures involve directly burying the settlement monitoring device in the side wall of the transformer foundation. This type of device is prone to deformation or displacement during concrete pouring, rebar tying, and formwork work. Furthermore, lacking effective protection, it is highly susceptible to impact and crushing during subsequent processes such as transformer installation, cable laying, and grounding construction, leading to bending, breakage, and dents. Finally, after the main transformer is installed, the settlement monitoring device will be obstructed by the transformer, significantly affecting the accuracy of the monitoring. Summary of the Invention

[0004] Purpose of the utility model: This utility model provides a pre-embedded settlement observation point device for main transformer foundations. The device is easy to construct and operates stably.

[0005] Technical solution: The pre-embedded settlement observation point device for main transformer foundation disclosed in this utility model includes an anchoring base installed in the main transformer foundation. The anchoring base extends out of the surface of the main transformer foundation and is connected to a measuring and stabilizing tube. A measuring tube is provided on the measuring and stabilizing tube, and a measuring end is provided on the measuring end. A protective device is provided on the outside of the measuring end.

[0006] Furthermore, the anchoring base includes multiple anchor bolts inserted into the surface of the main transformer foundation. The inner end of each anchor bolt is provided with an inner positioning template. Each anchor bolt passes through the inner positioning template and is fastened on both sides by fastening nuts. The surface of the main transformer foundation is provided with an outer positioning template. The outer ends of each anchor bolt pass through the outer positioning template and are fastened on both sides by fastening nuts.

[0007] Furthermore, a butterfly spring is provided between the outer positioning template and the fastening nut.

[0008] Furthermore, the measuring and stabilizing tube includes a steel pipe, with a capping steel plate fixed to the top and a flange fixed to the bottom. Reinforcing ribs are provided between the outer wall of the steel pipe and the flange. The flange is fixed to the anchor bolt in the same way as the outer positioning template sampling.

[0009] Furthermore, the diameter of the measuring tube is smaller than that of the measuring stabilizing tube, and it is fixed to the top steel plate.

[0010] Furthermore, the measuring end is connected to the top of the measuring tube via a threaded connection, allowing for height adjustment.

[0011] Furthermore, the protective device is a snap-on transparent protective cap.

[0012] Beneficial effects: Compared with the prior art, the advantages of this utility model are: it is not affected by harsh construction environments such as high-intensity disturbance and high pollution during construction, and it can avoid mechanical damage and corrosion during use, which is conducive to long-term operation. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the present invention;

[0014] Figure 2 This is a structural diagram of the anchoring base of this utility model;

[0015] Figure 3 This is a structural diagram of the measuring and stabilizing tube of this utility model;

[0016] Figure 4 This is a schematic diagram of the measuring tube and measuring end of this utility model. Detailed Implementation

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0018] like Figure 1 The pre-embedded settlement observation point device for the main transformer foundation shown includes an anchoring base 2 located in the main transformer foundation 1. The anchoring base 2 extends out of the surface of the main transformer foundation 1 and is connected to a measuring and stabilizing tube 3. A measuring tube 4 is provided on the measuring and stabilizing tube 3. A measuring end 5 is provided on the measuring tube 4. A protective device 6 is provided on the outside of the measuring end 5.

[0019] like Figure 2As shown, the anchoring base 2 includes multiple anchor bolts 201 inserted into the surface of the main transformer foundation 1. The inner end of each anchor bolt 201 is provided with an inner positioning template 202. All anchor bolts 201 pass through the inner positioning template 202 and are secured on both sides by fastening nuts 203. An outer positioning template 204 is provided on the surface of the main transformer foundation 1. The outer ends of all anchor bolts 201 pass through the outer positioning template 204 and are secured on both sides by fastening nuts 203. During construction, to prevent the anchoring base 2 from shifting due to concrete pouring, the positioning templates can be used to fix its position within the foundation.

[0020] A butterfly spring 205 is provided between the outer positioning template 204 and the fastening nut 203, which can reduce the temperature influence caused by concrete creep and the vibration influence caused by the main transformer during operation.

[0021] like Figure 3 As shown, the measuring and stabilizing tube 3 includes a steel pipe 301. In this embodiment, a galvanized steel pipe with a diameter of 150mm is used. A capping steel plate 302 is fixed to the top of the steel pipe 301, and a flange 303 is fixed to the bottom. A reinforcing rib 304 is provided between the outer wall of the steel pipe 301 and the flange 303. All of the above fixing methods can be directly achieved by welding.

[0022] Flange 303 and outer positioning template 204 are stacked and fixed to anchor bolt 201 in the same manner.

[0023] like Figure 4 As shown, the diameter of the measuring tube 4 is smaller than that of the measuring and stabilizing tube 3. It is made of galvanized steel pipe with a diameter of 50mm and welded and fixed to the top steel plate 302. The measuring end 5 is a 50mm stainless steel end, which is connected to the top of the measuring tube 4 by a thread, and its height can be adjusted according to the actual situation. The protective device 6 is a snap-on transparent protective cap, which can prevent rust and damage to the adjustable measuring end caused by wind and sand.

Claims

1. A pre-embedded settlement observation point device for main transformer foundations, characterized in that: It includes an anchoring base (2) located in the main transformer foundation (1), the anchoring base (2) extending out of the surface of the main transformer foundation (1) and connected to a measuring and stabilizing tube (3), the measuring and stabilizing tube (3) is provided with a measuring tube (4), the measuring tube (4) is provided with a measuring end (5), and the measuring end (5) is provided with a protective device (6) on the outside.

2. The pre-embedded settlement observation point device for main transformer foundation according to claim 1, characterized in that: The anchor base (2) includes multiple anchor bolts (201) inserted into the surface of the main transformer foundation (1). The inner end of the anchor bolt (201) is provided with an inner positioning template (202). The anchor bolts (201) all pass through the inner positioning template (202) and are fastened on both sides by fastening nuts (203). The surface of the main transformer foundation (1) is provided with an outer positioning template (204). The outer ends of the anchor bolts (201) all pass through the outer positioning template (204) and are fastened on both sides by fastening nuts (203).

3. The pre-embedded settlement observation point device for main transformer foundation according to claim 2, characterized in that: A butterfly spring (205) is provided between the outer positioning template (204) and the fastening nut (203).

4. The pre-embedded settlement observation point device for main transformer foundation according to claim 2, characterized in that: The measuring and stabilizing tube (3) includes a steel pipe (301), a capping steel plate (302) is fixed at the top of the steel pipe (301), and a flange (303) is fixed at the bottom. A reinforcing rib (304) is provided between the outer wall of the steel pipe (301) and the flange (303). The flange (303) is fixed to the anchor bolt (201) in the same way as the outer positioning template (204).

5. The pre-embedded settlement observation point device for main transformer foundation according to claim 1, characterized in that: The measuring tube (4) has a smaller diameter than the measuring and stabilizing tube (3) and is fixed on the capping steel plate (302).

6. The pre-embedded settlement observation point device for main transformer foundation according to claim 1, characterized in that: The measuring end (5) is connected to the top of the measuring tube (4) by a thread, and its height position can be adjusted.

7. The pre-embedded settlement observation point device for main transformer foundation according to claim 1, characterized in that: The protective device (6) is a snap-on transparent protective cap.

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