Device for monitoring running state of oil-immersed transformer

By setting up a cleaning mechanism for sleeves and sweeping blocks in the operating status monitoring device of the oil-immersed transformer, as well as the design of sleeves and openings, the problem of window pollution is solved, ensuring the clarity of the window and monitoring accuracy, and improving the safety and reliability of the device.

CN223245369UActive Publication Date: 2025-08-19CHANGZHOU CHIGAO ELECTRIC CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422435424.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-09
Publication Date
2025-08-19
Estimated Expiration
2034-10-09

AI Technical Summary

Technical Problem

The lack of a clean structure on the outside of the window of the existing oil-immersed transformer operating status monitoring device, resulting in the window being contaminated by external dirt after long-term use, affecting the accuracy of the observation results.

Method used

An oil-immersed transformer operating status monitoring device is designed. By setting grooves on the upper and lower sides of the window, sleeves and sweeping blocks are embedded in the grooves, the sleeves can be rotated to facilitate cleaning of the windows; at the same time, a sleeve ring and opening are set on the pressure relief valve to control the direction of the pressure relief oil flow to prevent contamination.

Benefits of technology

It realizes convenient cleaning of windows, maintains clarity, improves monitoring accuracy of oil level and other parameters, reduces maintenance frequency, enhances safety and reliability, and extends device life.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223245369U_ABST
    Figure CN223245369U_ABST
Patent Text Reader

Abstract

The utility model discloses an oil-immersed transformer operation state monitoring device, which comprises a device main body and a mounting seat arranged on the upper side of the device main body, a meter is arranged on the front upper side of the mounting seat, and a sensor is arranged on the left side of the mounting seat. A mounting seat is arranged on the upper side of the device main body, a pressure release valve is arranged on the upper side of the mounting seat, a valve is arranged on the upper side of the pressure release valve, a window is arranged on the front upper side of the device main body, a connecting seat is arranged on the lower side of the device main body, and an operator can easily clean the window through combination of a sleeve and a sweeping block. By means of the design, time and effort needed for cleaning are reduced, maintenance efficiency is improved, dirt and sediment may block the window, and accurate observation of the oil level is affected. The dirt can be effectively removed through the sweeping block, it is guaranteed that the window is kept clear all the time, and therefore an operator can more accurately monitor the oil level and other important parameters.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model belongs to the technical field related to oil-immersed transformer monitoring devices, and particularly relates to an oil-immersed transformer operating status monitoring device. Background Art

[0002] This oil-immersed transformer operating status monitoring device is an integrated monitoring system designed to monitor transformer operating parameters in real time to ensure safe and efficient operation. The device primarily consists of a main unit, mounting bracket, sensors, a meter, a pressure relief valve, and a viewing window. The sensors monitor temperature and pressure inside the transformer, while the meter displays these critical data in real time. The pressure relief valve automatically releases excessive pressure inside the transformer, ensuring equipment safety. The viewing window allows operators to visually observe the oil level, and a special cleaning mechanism ensures easy cleaning of the window for clear viewing.

[0003] However, when an existing oil-immersed transformer operating status monitoring device is in use, the outside of the window lacks a cleaning structure. During long-term use, the window will be contaminated by external dirt, resulting in unclear windows and erroneous observation results for operators. Utility Model Content

[0004] The purpose of the utility model is to provide an oil-immersed transformer operating status monitoring device to solve the problem proposed in the above background technology that the existing window lacks a cleaning structure on the outside, and during long-term use, the window will be contaminated by external dirt, resulting in unclear window and erroneous observation results for operators.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an oil-immersed transformer operating status monitoring device, comprising a device body and a mounting base arranged at an upper side of the device body;

[0006] A meter is provided at the front upper side of the mounting seat, a sensor is provided at the left side of the mounting seat, a pressure relief valve is provided at the upper side of the mounting seat, a valve is provided at the upper side of the pressure relief valve, a window is provided at the front upper side of the device body, a connecting seat is provided at the lower side of the device body, a probe rod is provided at the middle inner position of the connecting seat, and a float is provided at the lower outer position of the probe rod;

[0007] The left and right ends of the lower side of the mounting base are respectively provided with connection ports, and the sensor is connected to an external power supply through the connection ports for power supply;

[0008] The upper and lower sides of the window are respectively provided with embedding grooves, the outer position of the embedding groove is provided with a sleeve, the front inner position of the sleeve is provided with an empty groove, and the right side of the empty groove is provided with a sweeping block.

[0009] Preferably, the sleeve is connected to the embedding groove by a sleeve-embedded connection, and the sleeve can be rotated outside the device body through the embedding groove.

[0010] Preferably, the slot mask is larger than the window area, and the sweeping block is connected to the sleeve through an integrated connection.

[0011] Preferably, the sweeping block is close to the window and is made of fiber material.

[0012] Preferably, the connecting seat is connected to the device body through an integrated connection method, and the floating block is connected to the probe rod through an integrated connection method.

[0013] Preferably, the probe rod is connected to the device body by a movable connection, and the probe rod can move up and down in the device body.

[0014] Preferably, a collar is provided at an outer position of the pressure relief valve, the collar is connected to the pressure relief valve by a sleeve connection, and the collar can rotate on the outer side of the pressure relief valve.

[0015] Preferably, an opening is provided at the upper front side of the collar, and the height of the collar is higher than the height of the valve.

[0016] Compared with the prior art, the present invention provides an oil-immersed transformer operating status monitoring device, which has the following beneficial effects:

[0017] 1. In an oil-immersed transformer operating status monitoring device, the following benefits can be achieved through the provision of a sleeve, an empty slot, and a sweeping block:

[0018] Convenient cleaning mechanism: The combination of the sleeve and the sweeping block allows the operator to easily clean the window. This design reduces the time and effort required for cleaning and improves maintenance efficiency.

[0019] Improved visibility: Dirt and deposits can obscure the sight glass, preventing accurate oil level readings. The sweeper block effectively removes this deposit, ensuring the sight glass remains clear, allowing operators to more accurately monitor oil levels and other important parameters.

[0020] Reduced Maintenance Frequency: Since the windows can be cleaned at any time, the need for regular full disassembly and cleaning can be reduced, which not only saves time but also extends the overall life of the unit.

[0021] Enhanced safety: The clearly visible window helps to promptly detect potential operating problems, such as abnormal oil levels or leaks, so that measures can be taken quickly to prevent accidents and ensure the safe operation of the transformer.

[0022] Simplified operation process: Operators can complete the cleaning of the window without special tools or skills, which reduces the difficulty of operation and makes maintenance work simpler and easier.

[0023] Improved reliability: Regular cleaning of the viewing window ensures the accuracy of monitoring data, which is critical for transformer maintenance, which relies on accurate data for decision-making.

[0024] In summary, the benefit of this design is that it provides a simple, quick and effective window cleaning method, enhances the practicality and reliability of the device, and also improves the work efficiency and safety of the operator.

[0025] 2. In an oil-immersed transformer operating status monitoring device, the following benefits can be achieved through the setting of the collar and the opening:

[0026] Prevent window contamination: By adjusting the position of the collar opening, the direction of oil flow during pressure relief can be controlled to prevent oil from spraying directly onto the window, thereby maintaining the cleanliness and transparency of the window and ensuring that the operator can continuously obtain clear oil level readings.

[0027] Improved monitoring accuracy: The window is not covered by oil, which means that oil level monitoring will not be disturbed. This allows for more accurate monitoring of the transformer's operating status and timely detection and treatment of potential problems.

[0028] Simplified maintenance work: Since the window is not easily contaminated, the frequency and difficulty of cleaning the window are reduced, which reduces the burden of maintenance work and improves overall work efficiency.

[0029] Enhanced safety: Avoids oil splashing onto the device body, reducing potential damage to the equipment and the risk of operators being exposed to high-temperature oil.

[0030] Flexibility and controllability: The design of the collar provides additional control over the pressure relief process, allowing operators to adjust the oil flow direction according to actual conditions, increasing the flexibility and adaptability of the system.

[0031] Extend equipment life: By reducing window contamination and physical damage to the equipment, it helps to extend the service life of the entire monitoring device and reduce long-term maintenance costs.

[0032] Overall, the benefits of this design are that it provides an effective way to protect the sight glass from oil contamination during the pressure relief process, while improving system safety and reliability, simplifying maintenance procedures, and providing operators with more control options. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1It is a structural diagram of the present utility model.

[0034] Figure 2 This is a schematic diagram of the structure of the present invention after the sleeve is removed from the embedding groove.

[0035] Figure 3 For this utility model Figure 1 Schematic diagram of the structure after enlarging the inner sleeve area.

[0036] Figure 4 For this utility model Figure 2 Schematic diagram of the structure after enlarging the inner ring area.

[0037] In the picture:

[0038] 1. Device body; 2. Connecting seat; 3. Float; 4. Window; 5. Metering gauge; 6. Pressure relief valve; 7. Sensor; 8. Connecting port; 9. Sleeve; 10. Valve; 11. Groove; 12. Sweep block; 13. Empty slot; 14. Mounting seat; 15. Ring; 16. Opening; 17. Probe rod. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] The utility model provides Figure 1-4 The oil-immersed transformer operating status monitoring device shown includes a device body 1 and a mounting base 14 provided on the upper side of the device body 1;

[0041] A meter 5 is provided at the front upper side of the mounting seat 14, a sensor 7 is provided at the left side of the mounting seat 14, a pressure relief valve 6 is provided at the upper side of the mounting seat 14, a valve 10 is provided at the upper side of the pressure relief valve 6, a window 4 is provided at the front upper side of the device body 1, a connecting seat 2 is provided at the lower side of the device body 1, a probe rod 17 is provided at the middle inner position of the connecting seat 2, and a float 3 is provided at the lower outer position of the probe rod 17;

[0042] Connecting ports 8 are provided at the left and right ends of the lower side of the mounting base 14, respectively, and the sensor 7 is connected to an external power source through the connecting ports 8 for power supply;

[0043] The upper and lower sides of the viewing window 4 are respectively provided with embedding grooves 11, the outer position of the embedding groove 11 is provided with a sleeve 9, the front inner position of the sleeve 9 is provided with an empty groove 13, and the right side position of the empty groove 13 is provided with a cleaning block 12.

[0044] In this embodiment, the principle of use is:

[0045] Oil level monitoring: The oil level in the transformer tank can be monitored using the float 3 and probe 17 installed in the device body. The float 3 floats freely with the oil level, driving the probe 17 up and down, thus reflecting the oil level changes.

[0046] Temperature and pressure monitoring: The sensor 7 on the mounting base is used to monitor key parameters such as temperature and pressure inside the transformer to ensure that the transformer operates within a safe operating range.

[0047] Pressure relief protection: The setting of pressure relief valve 6 and valve 10 is to prevent the internal pressure of the transformer from being too high. When the pressure exceeds the set value, valve 10 of pressure relief valve 6 will automatically open to release excess pressure and ensure the safety of the transformer.

[0048] Visual monitoring: The window 4 allows the operator to directly observe the oil level in the transformer tank. The design of the sleeve 9 and the cleaning block 12 allows the window 4 to be rotated and cleaned to ensure clear observation.

[0049] Instructions:

[0050] Installation and connection: First, install the device body 1 on the transformer, ensure that the connecting seat 2 is correctly connected to the transformer oil tank, and place the probe rod 17 and the float 3 into the oil tank.

[0051] Power supply connection: Connect the sensor 7 to an external power supply through the connection port 8 to ensure that the sensor 7 works normally.

[0052] Start monitoring: Turn on the power supply so that the sensor 7 starts to monitor the temperature, pressure and other parameters inside the transformer and displays the relevant data through the meter 5.

[0053] Observe the oil level: Observe the oil level through the window 4. If necessary, rotate the sleeve 9 to clean the window to ensure the accuracy of observation.

[0054] Pressure adjustment: Check the status of the pressure relief valve 6 regularly to ensure that it can work normally when needed. If necessary, the pressure setting value of the pressure relief valve can be adjusted by the collar 15.

[0055] Daily maintenance: Regularly inspect and maintain the device, including cleaning the window 4, checking the working status of the sensor 7 and the pressure relief valve 6, etc.

[0056] Emergency treatment: Once the sensor 7 detects abnormal data or the pressure relief valve 6 opens automatically, appropriate measures should be taken immediately, such as cutting off the power supply, checking the cause of the fault and repairing it.

[0057] Through the above-mentioned usage principles and steps, the oil-immersed transformer operating status monitoring device can effectively monitor the operating status of the transformer, discover potential problems in a timely manner, and ensure the safe and stable operation of the transformer.

[0058] like Figure 1-3 As shown, the sleeve 9 is connected to the embedding groove 11 by an embedding connection, and the sleeve 9 can be rotated on the outside of the device body 1 through the embedding groove 11. The surface of the empty groove 13 is larger than the area of the window 4. The sweeping block 12 is connected to the sleeve 9 by an integrated connection. The sweeping block 12 is close to the window 4, and the sweeping block 12 is made of fiber material. The connecting seat 2 is connected to the device body 1 by an integrated connection. The floating block 3 is connected to the probe rod 17 by an integrated connection. The probe rod 17 is connected to the device body 1 by a movable connection, and the probe rod 17 can move up and down in the device body 1.

[0059] Preferably, when the main body 1 of the device is used for a long time, the operator can hold the sleeve 9 and rotate the sleeve 9 in the embedded groove 11, so that the cleaning block 12 in the empty groove 13 is close to the window 4, and the window 4 is cleaned with the cleaning block 12 to quickly remove the dirt adhered to the outside of the window 4, so that the operator can view the window 4 more clearly. After cleaning, the sleeve 9 can be rotated and reset again through the embedded groove 11 for cleaning and use next time.

[0060] like Figure 1-2 as well as Figure 4 As shown, a collar 15 is provided at the outer side of the pressure relief valve 6. The collar 15 is connected to the pressure relief valve 6 by a sleeve connection, and the collar 15 can rotate on the outer side of the pressure relief valve 6. An opening 16 is provided at the upper front side of the collar 15, and the height of the collar 15 is higher than the height of the valve 10.

[0061] Preferably, when the temperature inside the transformer rises, the oil will expand, thereby opening the valve 10 of the pressure relief valve 6 and flowing out to the outside to relieve pressure. The operator can rotate the ring 15 outside the pressure relief valve 6 in advance to change the position of the opening 16 and control the direction of the outflowing oil, thereby preventing the oil from flowing outside the window 4 on the device body 1 and causing contamination to the window 4.

[0062] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for monitoring the operating status of an oil-immersed transformer, comprising a device body (1) and a mounting seat (14) arranged at an upper side of the device body (1); A meter (5) is provided at the front upper side of the mounting seat (14), a sensor (7) is provided at the left side of the mounting seat (14), a pressure relief valve (6) is provided at the upper side of the mounting seat (14), a valve (10) is provided at the upper side of the pressure relief valve (6), a window (4) is provided at the front upper side of the device body (1), a connecting seat (2) is provided at the lower side of the device body (1), a probe rod (17) is provided at the middle inner position of the connecting seat (2), and a floating block (3) is provided at the lower outer position of the probe rod (17); Connecting ports (8) are respectively provided at the left and right ends of the lower side of the mounting seat (14), and the sensor (7) is connected to an external power source through the connecting ports (8) for power supply; Its characteristics are: The window (4) is provided with embedded grooves (11) at the upper and lower sides respectively, a sleeve (9) is provided at the outer position of the embedded groove (11), an empty groove (13) is provided at the inner position of the front side of the sleeve (9), and a sweeping block (12) is provided at the right side of the empty groove (13).

2. The oil-immersed transformer operating status monitoring device according to claim 1, characterized in that: The sleeve (9) is connected to the embedding groove (11) by means of a sleeve-embedded connection, and the sleeve (9) can be rotated outside the device body (1) through the embedding groove (11).

3. The oil-immersed transformer operating status monitoring device according to claim 2, characterized in that: The surface of the empty slot (13) is larger than the area of the viewing window (4), and the cleaning block (12) is connected to the sleeve (9) through an integrated connection.

4. The oil-immersed transformer operating status monitoring device according to claim 3, characterized in that: The sweeping block (12) is closely attached to the viewing window (4), and the sweeping block (12) is made of fiber material.

5. The oil-immersed transformer operating status monitoring device according to claim 4, characterized in that: The connecting seat (2) is connected to the device body (1) in an integrated connection manner, and the floating block (3) is connected to the probe rod (17) in an integrated connection manner.

6. The oil-immersed transformer operating status monitoring device according to claim 1, characterized in that: The probe rod (17) is connected to the device body (1) through a movable connection, and the probe rod (17) can move up and down in the device body (1).

7. The oil-immersed transformer operating status monitoring device according to claim 1, characterized in that: A collar (15) is provided at an outer position of the pressure relief valve (6), the collar (15) is connected to the pressure relief valve (6) by a sleeve connection, and the collar (15) can rotate outside the pressure relief valve (6).

8. The oil-immersed transformer operating status monitoring device according to claim 7, characterized in that: An opening (16) is provided at the upper front side of the collar (15), and the height of the collar (15) is higher than the height of the valve (10).