A transformer on-load voltage regulating switch oil supplementing device

Abstract

The utility model discloses a kind of transformer on-load voltage regulating switch oil supplement device, including shell, oil supplement mechanism is provided in the inside of shell, oil supplement mechanism is supported by shell and moves, it is convenient for the power supply oil supplement of multiple transformer on-load voltage regulating switch;Control mechanism is further provided on shell, and control mechanism is electrically connected equipment in oil supplement mechanism, and power supply oil supplement mechanism transformer on-load voltage regulating switch oil supplement is electrically controlled, involve transformer technical field: by setting transformer on-load voltage regulating switch oil supplement device, device is equipped with oil tank, by oil pump pumping, by oil filter assembly oil filtration, by transformer on-load voltage regulating switch oil pipe oil supplement of oil supplement pipe, not only need not power supply oil supplement, and oil supplement device can also be to oil supplement flow monitoring, oil tank oil quantity monitoring, transformer on-load voltage regulating switch oil supplement efficiency is higher, it is more convenient and labor-saving to move, can continue to the power supply oil supplement of multiple transformer on-load voltage regulating switch.

Description

Technical Field

[0001] This utility model relates to the field of transformers, specifically to an oil replenishment device for an on-load tap changer of a transformer. Background Technology

[0002] Transformer oil plays a role in insulation, arc extinguishing, and heat dissipation in on-load tap changers. Due to factors such as on-load tap changer oil leakage faults and the reduction in transformer oil volume caused by temperature drops in autumn and winter, the on-load tap changer oil level often becomes too low. When the transformer oil level is too low, maintenance personnel must promptly organize the oil filling of the on-load tap changer to bring the oil level to the required level. The existing technology for adding oil to the on-load tap changer requires a power outage and the use of extended oil pipes to replenish the oil tank of the on-load tap changer, which is time-consuming, labor-intensive, and inefficient.

[0003] Therefore, it is necessary to propose an oil replenishment device for on-load tap changers of transformers. Utility Model Content

[0004] The purpose of this invention is to provide an oil replenishment device for an on-load tap changer of a transformer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An on-load tap changer oil replenishment device for transformers includes a housing, an oil replenishment mechanism is provided inside the housing, the oil replenishment mechanism is supported and moved by the housing, which facilitates uninterrupted oil replenishment to multiple on-load tap changers of transformers; a control mechanism is also provided on the housing, the control mechanism is electrically connected to the equipment inside the oil replenishment mechanism, and performs electrical control of the oil replenishment mechanism to replenish oil to the on-load tap changers of transformers.

[0007] The oil replenishment mechanism includes an oil tank, an oil pump, and an oil filter assembly. The oil tank, oil pump, and oil filter assembly are respectively installed inside the housing. The oil inlet end of the oil pump is connected to the oil tank, and the oil outlet end of the oil pump is connected to the oil filter assembly.

[0008] Preferably, a refueling bucket is installed at the upper end of the fuel tank, and a first sealing cap is threaded onto the upper end of the refueling bucket.

[0009] Preferably, a flow meter is installed at the bottom of the oil tank, and the lower end of the flow meter is connected to a bellows, the lower end of which is connected to the oil inlet of the oil pump.

[0010] Preferably, the oil filtration assembly includes an oil box, a second sealing cover, a first filter screen, and a second filter screen. The oil box is installed inside the housing, the second sealing cover is installed to the top of the oil box by screws, and the first filter screen and the second filter screen are respectively snapped into the inside of the oil box.

[0011] Preferably, a connecting pipe is installed between the oil box and the oil outlet end of the oil pump, and an oil replenishment pipe is installed on the other side of the oil box.

[0012] Preferably, the control mechanism includes a battery, a support box, and an electronic control box. The battery is installed inside the housing, the support box is installed at the upper end of the housing, and the electronic control box is installed inside the support box.

[0013] Preferably, a liquid level sensor is also installed on the top of the housing, the detection rod of the liquid level sensor extends into the oil tank, the liquid level sensor is electrically connected to the electrical control box, and conduits are installed inside both ends of the housing to facilitate the passage of wires.

[0014] Preferably, a cabinet door is installed on the side of the housing via a hinge, casters are installed on the bottom of the housing, and a handrail is installed on the top of the housing.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Beneficial effects

[0016] By installing an oil replenishment device for the on-load tap changer of a transformer, the device has its own oil tank. Oil is drawn by an oil pump, filtered by an oil filter assembly, and replenished to the oil pipe of the on-load tap changer of the transformer through the oil replenishment pipe. Not only is it possible to replenish oil without interrupting power, but the oil replenishment device can also monitor the oil replenishment flow and the oil level in the tank. This results in higher oil replenishment efficiency for the on-load tap changer of the transformer, and it is more convenient and labor-saving to move. It can continuously replenish oil to multiple on-load tap changers of transformers without interrupting power. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an oil replenishment device for an on-load tap changer of a transformer.

[0018] Figure 2 This is a structural diagram of an oil replenishment device for an on-load tap changer of a transformer.

[0019] Figure 3 A top view of an on-load tap changer oil replenishment device for a transformer.

[0020] Figure 4 This is a structural diagram of the oil filter assembly in an on-load tap changer oil replenishment device for a transformer.

[0021] In the diagram: 1. Housing; 11. Cabinet door; 12. Casters; 13. Handrail; 2. Oil replenishment mechanism; 21. Oil tank; 22. Oil filling hopper; 23. First sealing cover; 24. Oil pump; 25. Flow meter; 251. Corrugated pipe; 26. Connecting pipe; 27. Oil replenishment pipe; 28. Oil filter assembly; 281. Oil box; 282. Second sealing cover; 283. First filter screen; 284. Second filter screen; 3. Control mechanism; 31. Battery; 32. Conduit; 33. Support box; 34. Electrical control box; 35. Liquid level sensor. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] like Figures 1-4 ;

[0024] An on-load tap changer oil replenishment device for transformers includes a housing 1. A cabinet door 11 is installed on the side of the housing 1 via a hinge, which is used to close and protect the interior of the housing 1. Casters 12 are installed at the bottom of the housing 1 to facilitate the movement of the oil replenishment device. A handrail 13 is installed at the top of the housing 1. An oil replenishment mechanism 2 is installed inside the housing 1. The oil replenishment mechanism 2 is supported and moved by the housing 1, which facilitates uninterrupted oil replenishment to multiple on-load tap changers of transformers. A control mechanism 3 is also installed on the housing 1. The control mechanism 3 is electrically connected to the equipment inside the oil replenishment mechanism 2 to electrically control the oil replenishment mechanism 2 to replenish oil to the on-load tap changers of transformers.

[0025] The oil replenishment mechanism 2 includes an oil tank 21, an oil pump 24, and an oil filter assembly 28. The oil tank 21, oil pump 24, and oil filter assembly 28 are respectively installed inside the housing 1. The oil inlet of the oil pump 24 is connected to the oil tank 21, which stores oil for the transformer's on-load tap changer. The oil pump 24 is used to extract oil from the oil tank 21. The oil pump 24 is a 20CQ-12P model manufactured by Jiashan Bianfeng Artificial Intelligence Technology Co., Ltd. Since the structure and operating principle of the oil pump 24 are existing technologies, their structure and operating principle will not be described in detail here. The oil outlet of the oil pump 24 is connected to the oil filter assembly 28, which filters the extracted oil before replenishing the transformer's on-load tap changer. An oil hopper 22 is installed at the top of the oil tank 21. The oil hopper 22 is used to fill the oil tank 21 with oil. The upper end of the oil hopper 22 is threaded with a first sealing cap 23, which is used to cover and seal the oil hopper 22. A flow meter 25 is installed at the bottom of the oil tank 21. The flow meter 25 is used to monitor the flow rate of oil flowing out of the oil tank 21. The flow meter 25 is electrically connected to the electrical control box 34. The flow meter 25 is a flow meter of model LWGY-SIN produced by Hangzhou LianCe Automation Technology Co., Ltd. The flow meter 25 is used to monitor the flow rate of oil flowing out of the oil tank 21. Since the structure and operating principle of the flow meter 25 are existing technologies, its structure and operating principle will not be described in detail here. The lower end of the flow meter 25 is connected to a bellows 251. The lower end of the bellows 251 is connected to the oil inlet of the oil pump 24. The bellows 251 is a bellows hose used to deliver oil into the oil pump 24.

[0026] Furthermore, the oil filter assembly 28 includes an oil box 281, a second sealing cover 282, a first filter screen 283, and a second filter screen 284. The oil box 281 is installed inside the housing 1. The second sealing cover 282 is sealed to the top of the oil box 281 by screws. The first filter screen 283 and the second filter screen 284 are respectively snapped into the inside of the oil box 281. The mesh size of the second filter screen 284 is smaller than that of the first filter screen 283. The oil passes through the first filter screen 283 and the second filter screen 284. The oil entering through the connecting pipe 26 is filtered. The connecting pipe 26 is installed at the oil outlet of the oil box 281 and the oil pump 24. After the oil pump 24 draws oil from the oil tank 21, it transports the oil to the oil box 281 through the connecting pipe 26. An oil replenishment pipe 27 is installed on the other side of the oil box 281. The other end of the oil replenishment pipe 27 is connected to the oil inlet of the transformer on-load tap changer. The oil in the oil box 281 is transported to the transformer on-load tap changer through the oil replenishment pipe 27 for continuous oil replenishment.

[0027] Furthermore, the control mechanism 3 includes a battery 31, a support box 33, and an electrical control box 34. The battery 31 is installed inside the housing 1 and provides power. The battery 31 is electrically connected to the electrical control box 34. The support box 33 is installed at the upper end of the housing 1 and is used to protect the electrical control box 34. The electrical control box 34 is installed inside the support box 33 and contains a microcontroller and control buttons. The microcontroller is a model N32G032R8L7 manufactured by Shenzhen Dongyu Guangda Electronics Co., Ltd. The microcontroller is used to control the equipment in the oil replenishment device. Since the structure and operating principle of the microcontroller are existing technologies, their structure and operating principle will not be described in detail here. The electrical control box 34 is electrically connected to the oil pump 2. 4. Flow meter 25 and liquid level sensor 35. A liquid level sensor 35 is also installed on the top of the housing 1. The liquid level sensor 35 is used to detect the oil level in the oil tank 21 and feed back the detection information to the microcontroller. The information is displayed through the electrical control box 34. The liquid level sensor 35 is a TYCO-7X liquid level sensor produced by Hebei Xiangqi Automation Technology Co., Ltd. The liquid level sensor 35 is used to detect the oil level in the oil tank 21. Since the structure and operating principle of the liquid level sensor 35 are existing technologies, its structure and operating principle will not be described in detail here. The detection rod of the liquid level sensor 35 extends into the oil tank 21. The liquid level sensor 35 is electrically connected to the electrical control box 34. Both ends of the housing 1 are equipped with conduits 32 to facilitate the passage of wires.

[0028] The working principle of this utility model is as follows: the housing 1 is supported by the moving wheels 12 for easy movement. The other end of the oil replenishment pipe 27 is connected to the oil inlet of the on-load tap changer of the transformer. The electrical control box 34 is equipped with a microcontroller and control buttons. The oil pump 24 is started by controlling the corresponding control buttons. The oil pump 24 draws oil from the oil tank 21 through the bellows pipe 251. The flow rate of the oil flowing out of the oil tank 21 is monitored by the flow meter 25. The oil is then transported to the oil box 281 through the connecting pipe 26. The oil entering the connecting pipe 26 is filtered by the first filter screen 283 and the second filter screen 284. The oil is then transported to the on-load tap changer of the transformer through the oil replenishment pipe 27 for continuous oil replenishment. The liquid level sensor 35 detects the oil level in the oil tank 21 and feeds back the detection information to the microcontroller. The information is displayed through the electrical control box 34. The oil level in the oil tank 21 can be replenished by adding oil through the oil filling hopper 22.

[0029] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A transformer on-load tap changer oil replenishment device, comprising a housing (1), characterized in that: The housing (1) is equipped with an oil replenishment mechanism (2). The oil replenishment mechanism (2) is supported and moved by the housing (1), which facilitates the continuous oil replenishment of multiple transformer on-load tap changers. The housing (1) is also provided with a control mechanism (3), which is electrically connected to the equipment inside the oil replenishment mechanism (2) to electrically control the oil replenishment mechanism (2) to replenish oil to the on-load tap changer of the transformer; The oil replenishment mechanism (2) includes an oil tank (21), an oil pump (24), and an oil filter assembly (28). The oil tank (21), the oil pump (24), and the oil filter assembly (28) are respectively installed inside the housing (1). The oil inlet end of the oil pump (24) is connected to the oil tank (21), and the oil outlet end of the oil pump (24) is connected to the oil filter assembly (28).

2. The oil supplementing device for on-load tap changer of a transformer according to claim 1, characterized in that: The upper end of the oil tank (21) is equipped with a filling bucket (22), and the upper end of the filling bucket (22) is threaded with a first sealing cap (23).

3. The transformer on-load tap changer oil replenishment device of claim 1, wherein: A flow meter (25) is installed at the bottom of the oil tank (21). The lower end of the flow meter (25) is connected to a bellows (251), and the lower end of the bellows (251) is connected to the oil inlet of the oil pump (24).

4. The transformer on-load tap changer oil replenishment device of claim 1, wherein: The oil filter assembly (28) includes an oil box (281), a second sealing cover (282), a first filter screen (283), and a second filter screen (284). The oil box (281) is installed inside the housing (1). The second sealing cover (282) is installed on the top of the oil box (281) by screws. The first filter screen (283) and the second filter screen (284) are respectively snapped into the inside of the oil box (281).

5. The transformer on-load tap changer oil replenishment device according to claim 4, characterized in that: The oil box (281) and the oil pump (24) are connected by a connecting pipe (26), and an oil replenishment pipe (27) is installed on the other side of the oil box (281).

6. The transformer on-load tap changer oil replenishment device of claim 1, wherein: The control mechanism (3) includes a battery (31), a support box (33) and an electronic control box (34). The battery (31) is installed inside the housing (1), the support box (33) is installed at the upper end of the housing (1), and the electronic control box (34) is installed inside the support box (33).

7. The transformer on-load tap changer oil replenishment device according to claim 6, characterized in that: A liquid level sensor (35) is also installed on the top of the housing (1). The detection rod of the liquid level sensor (35) extends into the oil tank (21). The liquid level sensor (35) is electrically connected to the control box (34). Conduits (32) are installed inside both ends of the housing (1). The conduits (32) facilitate the passage of wires.

8. The transformer on-load tap changer oil replenishment device according to claim 1, characterized in that: The side of the housing (1) is fitted with a cabinet door (11) via a hinge, the bottom of the housing (1) is fitted with a caster wheel (12), and the top of the housing (1) is fitted with a handrail (13).

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