Oil-immersed power transformer

Abstract

The utility model relates to the technical field of electric power engineering equipment, in particular to an oil-immersed power transformer which comprises a transformer body, an oil tank support is fixedly installed on one side of the transformer body, and an oil level gauge assembly is arranged on the top of the oil tank support; by arranging the oil tank body, the oil conveying pipe, the light disc, the stroboscope lamp body and other components, the transformer body communicates with the oil tank body through the oil conveying pipe, so that liquid oil in the transformer can flow into the oil tank body. When the oil level changes, the floating disc drives the connecting rod and the light disc to move up and down, and the pressure-sensitive trigger element at the bottom of the light disc controls the light emitting color of the stroboscope lamp body. Therefore, the device can monitor the change of the oil level to visually warn the screened abnormal condition of the oil level through the light beams with different colors of the stroboscope lamp. By arranging the light-transmitting holes, the polyhedral crystal, the light-transmitting grating, the limiting columns and other parts, the movement range of the floating disc is limited through the limiting columns, and the oil level monitoring accuracy is guaranteed.

Description

Technical Field

[0001] This application relates to the field of power engineering equipment technology, and in particular to an oil-immersed power transformer. Background Technology

[0002] Oil-immersed power transformers, as key equipment in power systems for voltage transformation, power transmission, and distribution, play an extremely important role in the power supply field. Relying on insulating oil as a cooling and insulating medium, they effectively ensure the normal operation and reliability of the transformer. During the operation of oil-immersed power transformers, accurately monitoring the oil level inside the transformer is crucial for ensuring its safe and stable operation. A suitable oil level ensures good cooling and insulation, preventing winding exposure due to low oil levels, which can lead to decreased insulation performance or even short circuits. Simultaneously, it prevents excessive pressure within the tank due to high oil levels, which could cause oil leaks or equipment damage.

[0003] A search revealed Chinese Patent Publication No. CN118658711A, which discloses an oil-immersed power transformer. It includes a base plate, with a housing fixed to its upper side. Two threaded posts are fixed to the upper side of the base plate, and an insulating plate is inserted into these two posts. Each threaded post is threaded with a nut. Two pads are fixed to the upper side of the insulating plate. Guide posts are fixed to both the front and rear ends of the upper side of the insulating plate. A support plate has slots on both its front and rear sides, with each slot corresponding to one of the guide posts. Wheel frames are fixed to both the front and rear ends of the upper side of the support plate, with rollers rotatably connected to each frame. The rollers press against the two guide posts, effectively insulating the coils from the transformer housing.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: existing transformers using the aforementioned devices lack an intuitive and accurate oil level display method. Transformer oil serves as a cooling and insulating medium, and accurate monitoring of its level is directly related to the normal operation of the transformer. Abnormal oil levels can lead to serious consequences such as poor heat dissipation and decreased insulation performance. It is difficult to monitor oil level changes in real time and clearly, and potential risks cannot be detected in a timely manner. Summary of the Invention

[0005] To address the problems mentioned in the background section, this application provides an oil-immersed power transformer.

[0006] This application provides an oil-immersed power transformer, which adopts the following technical solution: an oil-immersed power transformer includes a transformer body, an oil tank bracket is fixedly installed on one side of the transformer body, and an oil level gauge assembly is provided on the top of the oil tank bracket;

[0007] An oil level gauge assembly includes an oil tank body, an oil supply pipe, an oil level gauge housing, a light-transmitting hole, a positioning ring, a positioning hole, a light-transmitting grid, a lightweight disc, and a strobe lamp body. The oil tank body is fixedly installed on the top of an oil tank bracket. An oil supply pipe is connected to one side of the oil tank body and is connected to a transformer body. The oil level gauge housing is fixedly installed on the top of the oil tank body. A light-transmitting hole is provided through one side of the oil level gauge housing. A positioning ring is fixedly installed on the top of the oil level gauge housing, and a positioning hole is provided through the top of the positioning ring. A light-transmitting grid is provided through one side of the oil level gauge housing. A lightweight disc is movably installed inside the oil level gauge housing. A strobe lamp body is fixedly installed on the top of the lightweight disc. The strobe lamp body is used to emit green and red strobe light beams.

[0008] With the above solution, the oil level gauge component can intuitively display the oil level status through the beam of light emitted by the strobe lamp body, which is convenient for monitoring.

[0009] Optionally, the oil level gauge assembly further includes a connecting rod, a float, and a limiting post. The connecting rod is fixedly connected to the bottom of the lightweight disc, passes through the oil tank body, and is movably connected inside the oil tank body. The bottom of the connecting rod is fixedly connected to the float, and the top of the float is movably fitted with the limiting post. The limiting post is fixedly installed inside the oil tank body, and the height of the limiting post is equal to the height inside the oil tank body.

[0010] With the above scheme, the floating roof moves up and down with the oil level, driving the connecting rod and the lightweight disc to move, thus achieving accurate detection of the oil level.

[0011] Optionally, the lightweight disc is movably mounted on the top of the fuel tank body, and a pressure-sensitive trigger element is provided at the bottom of the lightweight disc for switching the color of the light emitted by the strobe lamp body.

[0012] Through the above scheme, the pressure-sensitive trigger element automatically switches the color of the strobe lamp body according to the oil level change, providing an intuitive oil level warning.

[0013] Optionally, the interior of the light-transmitting hole is inlaid with multifaceted crystals to refract visible light emitted by the strobe lamp body.

[0014] The above method enhances the refraction effect of the beam through multifaceted crystals, making the oil level indicator more clearly visible.

[0015] Optionally, the interior of the tank body is filled with liquid oil, and the density of the liquid oil is greater than the density of the floating roof.

[0016] The above method allows the floating roof to float in liquid oil, ensuring the accuracy and reliability of oil level detection.

[0017] Optionally, the size of the strobe lamp body is exactly the same as the inner diameter of the positioning hole, and the strobe lamp body is movably fitted inside the positioning hole.

[0018] The above solution ensures stable operation of the strobe lamp body and the positioning hole through close cooperation, avoiding errors caused by vibration or movement.

[0019] In summary, this application includes the following beneficial technical effects:

[0020] 1. This utility model comprises an oil tank body, an oil delivery pipe, a lightweight disc, and a strobe lamp body. The oil delivery pipe connects the transformer body to the oil tank body, allowing liquid oil from the transformer to flow into the tank. When the oil level changes, the float moves the connecting rod and the lightweight disc up and down. A pressure-sensitive trigger element at the bottom of the lightweight disc controls the color of the strobe lamp. This achieves the effect of monitoring oil level changes and providing a direct warning of abnormal oil levels using different colored beams of light from the strobe lamp.

[0021] 2. This utility model, by incorporating components such as a light-transmitting hole, multifaceted crystals, a light-transmitting grid, and limiting posts, limits the movement range of the floating plate through the limiting posts, ensuring the accuracy of oil level monitoring. Changes in oil level cause the strobe lamp body to move; the light emitted is refracted by the multifaceted crystals within the light-transmitting hole and then diffused through the light-transmitting grid. This allows the device to more clearly and broadly display the filtered oil level information through light refraction and diffusion, facilitating remote observation of oil levels by personnel. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the device in the embodiments of this application;

[0023] Figure 2 This is a schematic diagram of a partial structure of the device in an embodiment of this application;

[0024] Figure 3 This is a partial structural diagram of the oil level gauge assembly in an embodiment of this application;

[0025] Figure 4 This is a schematic diagram of a partial structure installation of the oil level gauge assembly in an embodiment of this application;

[0026] Reference numerals in the attached drawings: 1. Transformer body; 2. Tank support; 3. Oil level gauge assembly; 301. Tank body; 302. Oil pipe; 303. Oil level gauge housing; 304. Light-transmitting hole; 305. Positioning ring; 306. Positioning hole; 307. Light-transmitting grille; 308. Lightweight disc; 309. Strobe lamp body; 310. Connecting rod; 311. Float; 312. Limiting post. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0028] This application discloses an oil-immersed power transformer.

[0029] Please see Figure 1 An oil-immersed power transformer includes a transformer body 1, an oil tank bracket 2 fixedly installed on one side of the transformer body 1, and an oil level gauge assembly 3 installed on the top of the oil tank bracket 2.

[0030] Please see Figures 2 to 4 The oil level gauge assembly 3 includes an oil tank body 301, an oil supply pipe 302, an oil level gauge housing 303, a light-transmitting hole 304, a positioning ring 305, a positioning hole 306, a light-transmitting grid 307, a lightweight disc 308, and a strobe lamp body 309. The oil tank body 301 is fixedly installed on the top of the oil tank bracket 2. One side of the oil tank body 301 is connected to the oil supply pipe 302, which is connected to the transformer body 1. The oil level gauge housing 309 is fixedly installed on the top of the oil tank body 301. 03. A light-transmitting hole 304 is provided through one side of the oil level gauge housing 303. A positioning ring 305 is fixedly installed on the top of the oil level gauge housing 303. A positioning hole 306 is provided through the top of the positioning ring 305. A light-transmitting grille 307 is provided through one side of the oil level gauge housing 303. A lightweight disc 308 is movably installed inside the oil level gauge housing 303. A strobe lamp body 309 is fixedly installed on the top of the lightweight disc 308. The strobe lamp body 309 is used to emit green and red strobe beams.

[0031] The oil level gauge assembly 3 also includes a connecting rod 310, a float 311, and a limiting post 312. The connecting rod 310 is fixedly connected to the bottom of the lightweight disc 308. The connecting rod 310 passes through the oil tank body 301 and is movably connected inside the oil tank body 301. The bottom of the connecting rod 310 is fixedly connected to the float 311. The top of the float 311 is movably sleeved with the limiting post 312. The limiting post 312 is fixedly installed inside the oil tank body 301, and the height of the limiting post 312 is equal to the height inside the oil tank body 301.

[0032] The lightweight disc 308 is movably mounted on the top of the fuel tank body 301. A pressure-sensitive trigger element is provided at the bottom of the lightweight disc 308 to switch the color of the light emitted by the strobe lamp body 309.

[0033] The interior of the light-transmitting aperture 304 is inlaid with multifaceted crystals to refract the visible light emitted by the strobe lamp body 309.

[0034] The interior of the oil tank body 301 is filled with liquid oil, and the density of the liquid oil is greater than the density of the floating plate 311.

[0035] The size of the strobe lamp body 309 is exactly the same as the inner diameter of the positioning hole 306, and the strobe lamp body 309 is movably fitted inside the positioning hole 306.

[0036] Further explanation is needed: the oil level gauge assembly 3 plays a crucial role in the oil-immersed power transformer. It has a precise oil level monitoring function. The transformer body 1 is connected to the oil tank body 301 through the oil supply pipe 302, and the liquid oil in the transformer can flow smoothly into the oil tank body 301. When the oil level fluctuates, the float 311 will rise and fall accordingly, driving the connecting rod 310 connected to it, which in turn causes the lightweight disc 308 to move up and down. Based on the pressure-sensitive trigger element at the bottom of the lightweight disc 308, the strobe lamp body 309 can emit different colors of light according to the oil level, allowing the staff to quickly know whether the oil level is within the normal range.

[0037] This component also serves to clearly display oil level information. The limiting post 312 inside the oil tank body 301 precisely limits the movement range of the floating plate 311, ensuring the accuracy of oil level monitoring. The strobe lamp body 309, which moves with the oil level, emits light that is refracted by the multifaceted crystal inside the light-transmitting hole 304 and then diffused through the light-transmitting grid 307, so that the oil level status information is presented in a more intuitive, clear and extensive form. This allows staff to clearly observe the oil level even from a distance, ensuring the stable operation of the transformer.

[0038] The implementation principle of an oil-immersed power transformer according to an embodiment of this application is as follows:

[0039] First, the transformer body 1 is connected to the oil tank body 301 through the oil supply pipe 302. The liquid oil in the transformer flows into the oil tank body 301 through the oil supply pipe 302 by gravity or pressure difference. This establishes a basic connection for subsequent oil level monitoring, so that the oil level in the oil tank body 301 can change in a consistent manner with the oil level in the transformer.

[0040] Secondly, when the oil level in the transformer fluctuates, the float 311 inside the tank body 301 rises and falls due to the buoyancy of the liquid oil. Since the float 311 is fixedly connected to the connecting rod 310, the rising and falling movement of the float 311 will drive the connecting rod 310 to move synchronously.

[0041] Next, the up-and-down movement of the connecting rod 310 will drive the lightweight disc 308 to move. The bottom of the lightweight disc 308 is equipped with a pressure-sensitive trigger element. When the lightweight disc 308 rises or falls with the oil level, the pressure-sensitive trigger element will control the strobe lamp body 309 to emit different colors of light according to the pressure change, thereby reflecting the oil level.

[0042] Next, the light emitted by the strobe lamp body 309 is directed toward the light-transmitting hole 304. The multifaceted crystal embedded inside the light-transmitting hole 304 refracts the light, changes the direction of light propagation, and causes the light to scatter at different angles.

[0043] Finally, the light, after being refracted by the multi-faceted crystal, is diffused a second time through the light-transmitting grid 307, allowing the light to spread more widely. This enables staff to observe the oil level information more intuitively and clearly from any angle, ensuring effective monitoring of the transformer oil level.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An oil-immersed power transformer, comprising a transformer body (1), characterized in that: An oil tank bracket (2) is fixedly installed on one side of the transformer body (1), and an oil level gauge assembly (3) is provided on the top of the oil tank bracket (2). The oil level gauge assembly (3) includes an oil tank body (301), an oil pipe (302), an oil level gauge housing (303), a light-transmitting hole (304), a positioning ring (305), a positioning hole (306), a light-transmitting grid (307), a lightweight disc (308), and a strobe lamp body (309). The oil tank body (301) is fixedly installed on the top of the oil tank bracket (2). One side of the oil tank body (301) is connected to the oil pipe (302), which is connected to the transformer body (1). The oil level gauge housing is fixedly installed on the top of the oil tank body (301). (303), a light-transmitting hole (304) is provided through one side of the oil level gauge housing (303), a positioning ring (305) is fixedly installed on the top of the oil level gauge housing (303), a positioning hole (306) is provided through the top of the positioning ring (305), a light-transmitting grille (307) is provided through one side of the oil level gauge housing (303), a lightweight disc (308) is movably installed inside the oil level gauge housing (303), a strobe lamp body (309) is fixedly installed on the top of the lightweight disc (308), and the strobe lamp body (309) is used to emit green and red strobe light beams.

2. The oil-immersed power transformer according to claim 1, characterized in that: The oil level gauge assembly (3) also includes a connecting rod (310), a float (311), and a limiting post (312). The connecting rod (310) is fixedly connected to the bottom of the lightweight disc (308). The connecting rod (310) passes through the oil tank body (301) and is movably connected inside the oil tank body (301). The bottom of the connecting rod (310) is fixedly connected to the float (311). The top of the float (311) is movably sleeved with the limiting post (312). The limiting post (312) is fixedly installed inside the oil tank body (301), and the height of the limiting post (312) is equal to the height inside the oil tank body (301).

3. The oil-immersed power transformer according to claim 1, characterized in that: The lightweight disc (308) is movably mounted on the top of the fuel tank body (301), and a pressure-sensitive trigger element is provided at the bottom of the lightweight disc (308) for switching the color of the light emitted by the strobe lamp body (309).

4. An oil-immersed power transformer according to claim 2, characterized in that: The interior of the light-transmitting hole (304) is inlaid with multifaceted crystals to refract visible light emitted by the strobe lamp body (309).

5. An oil-immersed power transformer according to claim 2, characterized in that: The interior of the tank body (301) is filled with liquid oil, and the density of the liquid oil is greater than that of the floating plate (311).

6. An oil-immersed power transformer according to claim 1, characterized in that: The size of the strobe lamp body (309) is exactly the same as the inner diameter of the positioning hole (306), and the strobe lamp body (309) is movably sleeved inside the positioning hole (306).

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