A high-precision online monitoring device for dissolved gases in transformer oil

Abstract

This utility model proposes a high-precision online monitoring device for dissolved gases in transformer oil, including a housing. An adjustment mechanism is fixedly installed on the rear side of the housing, and a buffer mechanism is fixedly installed on the front of the adjustment mechanism. A base plate is fixedly installed on the top of the buffer mechanism. The buffer mechanism of this device can provide comprehensive shock absorption. When moving during use, the side buffer spring and the main buffer spring work together, and the upper hinge ball and the lower hinge ball cooperate to hinge and link together, thereby enabling the side buffer spring to cope with multi-directional impacts. At the same time, when subjected to vertical impact, the deformation of its main buffer spring can further enhance the shock absorption effect. The main damper and the side damper reduce the amplitude by suppressing spring oscillation, improve the buffer performance of the device, ensure the stable operation of the online monitoring instrument under complex working conditions, enhance the practicality and reliability of the device, and enable the device to have a good buffer effect.

Description

Technical Field

[0001] This utility model relates to the field of aluminum foil production technology, and in particular to a high-precision online monitoring device for dissolved gases in transformer oil. Background Technology

[0002] In power systems, the stable operation of transformers is crucial to ensuring power grid security. Therefore, monitoring their operating status is of great significance. Since the composition and content of dissolved gases in transformer oil can effectively reflect internal transformer faults, dissolved gas analysis in oil has become a widely used monitoring method in the power sector due to its maturity and effectiveness.

[0003] With the development of technology, the online monitoring devices for dissolved gases in transformer insulating oil on the market have limitations. Many devices are difficult to change position flexibly, which limits their application scenarios and convenience. Although a patent such as "CN213456933U" proposes a movable monitoring device that can be moved easily by using a mounting frame and wheels, this device still has obvious shortcomings.

[0004] Firstly, in terms of buffering performance, the device relies solely on a fixed-stroke buffer spring for vertical buffering. This single buffering structure and fixed buffering mode are inadequate when facing complex and ever-changing actual working conditions. During the movement of the device, road bumps, collisions during transport, and other situations can easily generate vibrations and impacts from the sides, back, and other directions. The existing buffering structure cannot effectively absorb and mitigate these non-vertical impacts, which may not only damage the internal precision detection components and reduce the accuracy of monitoring data, but also affect the service life of the device.

[0005] Secondly, in terms of ease of access to the device, it lacks a quick and convenient telescopic design. Staff need to spend a lot of time and energy to move the device out of the enclosure through a complicated operation process. Especially in scenarios where every second counts, such as emergency maintenance and troubleshooting, this inconvenience seriously affects work efficiency and makes it difficult to meet the urgent needs of the power system for rapid response and flexible use of monitoring equipment. Therefore, it is urgent to optimize and improve the existing technology. Utility Model Content

[0006] To address the aforementioned problems, this invention proposes a high-precision online monitoring device for dissolved gases in transformer oil, which can more accurately solve the problems described above.

[0007] This utility model is achieved through the following technical solution:

[0008] This utility model proposes a high-precision online monitoring device for dissolved gases in transformer oil, including a housing. An adjustment mechanism is fixedly installed on the rear side of the housing, a buffer mechanism is fixedly installed on the front of the adjustment mechanism, a base plate is fixedly installed on the top of the buffer mechanism, an online monitoring instrument is fixedly installed on the top of the base plate, a cover plate is fixedly installed on the top of the adjustment mechanism, the cover plate covers the top of the housing, a bridge-type handrail is fixedly connected to the top of the cover plate, and a storage battery is provided on one side of the bottom of the housing.

[0009] The buffer mechanism includes an annular frame, which is fixedly connected to the front of the adjustment mechanism. Side buffers are fixedly installed at equal intervals inside the annular frame. Vertical buffers are fixedly installed inside the side buffers. The bottom of the vertical buffer is fitted and connected to the bottom of the annular frame. A mounting bracket is fixedly installed on the top of the vertical buffer. The top of the mounting bracket is connected to the bottom of the base plate.

[0010] Furthermore, the side buffer includes a first hinge ball, which is arranged in a ring at equal intervals and hinged to the upper end of the ring frame. A side buffer spring is fixedly connected to the inner side of the first hinge ball, and a fixing plate is fixedly installed on the inner side of the side buffer spring. A second hinge ball is rotatably connected to the inner side of the fixing plate, and the inner side of the second hinge ball is connected to the outer side of the vertical buffer.

[0011] Furthermore, the vertical buffer includes a fixed base, which is hinged to the inner side of the second hinge ball. A main buffer spring is fixedly installed at the bottom of the fixed base, and a bonding plate is fixedly installed at the bottom of the main buffer spring. Ball bearings are rotatably connected at equal intervals at the bottom of the bonding plate. The bottom of the ball bearings is bonded to the bottom of the inner ring frame. The top of the fixed base is connected to the bottom of the mounting bracket.

[0012] Furthermore, a side damper is provided between the first hinge ball and the fixed plate, and a main damper is fixedly installed at the bottom of the fixed seat and the top of the bonding plate. The side buffer spring is sleeved on the outside of the side damper, and the main buffer spring is sleeved on the outside of the main damper.

[0013] Furthermore, the bottom four corners of the box are rotatably connected with universal balls, and the outer surface edges of the box and the cover are all rounded.

[0014] Furthermore, square grooves are provided on both sides of the lower front end and both sides of the lower back end of the box body. Anti-slip screws are threaded into the interior of each square groove, and the bottom of each anti-slip screw penetrates the box body and is fixedly connected to an anti-slip base plate.

[0015] Furthermore, the adjustment mechanism includes a vertical rail, which is fixedly connected to the middle of the rear side of the housing. A drive motor is fixedly connected to the bottom of the vertical rail. A lead screw is fixedly connected to the output end of the drive motor through the vertical rail. A movable block is threadedly connected to the outer surface of the lead screw. The front of the movable block is connected to the back of the annular frame. A movable rod is fixedly connected to the top of the movable block. The top of the movable rod is connected to the bottom of the cover plate.

[0016] The beneficial effects of this utility model are:

[0017] 1. This device, through the setting of an adjustment mechanism, can drive the lead screw to rotate during application. The lead screw and nut drive the movable block to slide within the vertical rail, thereby driving the ring frame to rise and fall. This achieves vertical displacement adjustment of the buffer mechanism and the online monitoring instrument. The movable block, in conjunction with the movable rod, controls the opening and closing of the cover plate, allowing the monitoring instrument to extend or retract into the housing as needed. The monitoring instrument adopts a plug-in electrical connection for easy maintenance. The universal ball at the bottom of the device supports flexible movement. By rotating the anti-slip screw, the anti-slip base plate touches the ground, achieving stable positioning and ensuring monitoring stability.

[0018] 2. The buffer mechanism of this device can provide comprehensive shock absorption. During use and movement, the side buffer springs and the main buffer springs work together, and the upper and lower hinge balls are linked together, which enables the side buffer springs to cope with multi-directional impacts. At the same time, when subjected to vertical impact, the deformation of the main buffer spring can further enhance the shock absorption effect. The main damper and the side damper reduce the amplitude by suppressing spring oscillation, improve the buffer performance of the device, ensure the stable operation of the online monitoring instrument under complex working conditions, enhance the practicality and reliability of the device, and enable the device to have a good buffer effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0021] Figure 3 This is a schematic diagram of the extended state structure of the adjustment mechanism of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the box body of this utility model;

[0023] Figure 5 This is a schematic diagram of the internal structure of the buffer mechanism of this utility model;

[0024] Figure 6 This is a bottom view of the buffer mechanism of this utility model.

[0025] In the diagram: 1. Housing; 2. Adjustment mechanism; 21. Vertical rail; 22. Drive motor; 23. Lead screw; 24. Movable block; 25. Movable rod; 3. Buffer mechanism; 31. Annular frame; 32. Side buffer component; 321. First hinge ball; 322. Side buffer spring; 323. Fixed plate; 324. Second hinge ball; 325. Side damper; 33. Vertical buffer component; 331. Fixed seat; 332. Main buffer spring; 333. Adhesive plate; 334. Ball bearing; 335. Main damper; 34. Mounting bracket; 4. Base plate; 5. Online monitoring instrument; 6. Cover plate; 7. Bridge-type handrail; 8. Universal ball; 9. Square groove; 10. Anti-slip screw; 11. Anti-slip base plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] A high-precision online monitoring device for dissolved gases in transformer oil includes a housing 1. An adjustment mechanism 2 is fixedly installed on the rear side inside the housing 1. A buffer mechanism 3 is fixedly installed on the front side of the adjustment mechanism 2. A base plate 4 is fixedly installed on the top of the buffer mechanism 3. An online monitoring instrument 5 is fixedly installed on the top of the base plate 4. A cover plate 6 is fixedly installed on the top of the adjustment mechanism 2. The cover plate 6 covers the top of the housing 1. A bridge-type handrail 7 is fixedly connected to the top of the cover plate 6. A storage battery is provided on one side of the bottom inside the housing 1.

[0029] The buffer mechanism 3 includes an annular frame 31, which is fixedly connected to the front of the adjusting mechanism 2. Side buffers 32 are fixedly installed at equal intervals inside the annular frame 31. Vertical buffers 33 are fixedly installed on the inner side of the side buffers 32. The bottom of the vertical buffer 33 is fitted to the bottom of the annular frame 31. A mounting bracket 34 is fixedly installed on the top of the vertical buffer 33, and the top of the mounting bracket 34 is connected to the bottom of the base plate 4. When this high-precision online monitoring device for dissolved gases in transformer oil is running, all components work together. The adjusting mechanism 2, as the core driving part, is installed on the rear side of the housing 1. Its operation drives the buffer mechanism 3 on the front to move vertically. When the online monitoring instrument 5 is needed, the adjusting mechanism 2 drives the buffer mechanism 3 to rise, allowing the online monitoring instrument 5 mounted on the base plate 4 at the top of the buffer mechanism 3 to move vertically. The detector 5 extends from inside the housing 1, and the cover 6 opens accordingly to facilitate gas detection. After the detection is completed, the adjustment mechanism 2 reverses, causing the buffer mechanism 3 and the online monitor 5 to retract into the housing 1, and the cover 6 closes to protect the equipment. During the operation and movement of the device, the buffer mechanism 3 can provide buffering. The side buffer 32 and the vertical buffer 33 in its annular frame 31 cooperate with each other. The side buffer 32 can absorb the impact force from different directions, while the vertical buffer 33 can cope with the vertical vibration, further enhancing the buffering performance. Together, they reduce the impact of external vibration on the online monitor 5 and ensure high detection accuracy. At the same time, the battery in the housing 1 provides power support for all components. A bridge-type handrail 7 is also provided, which can be lifted to move the device when it is being carried, making it convenient to use.

[0030] The online monitoring instrument 5 can specifically employ a gas chromatograph, a photoacoustic spectrometer, or a laser spectrometer. Since the online monitoring instrument 5 utilizes existing technology, the following models can be used:

[0031] Gas chromatographs: GC2002, a dedicated gas chromatograph for dissolved gas analysis of power transformer oil manufactured by Shanghai Kechuang Chromatography Instrument Co., Ltd.; GC-2010-KT, a transformer oil chromatograph manufactured by Tengzhou Zhongkepu Analytical Instrument Co., Ltd., which can complete the full analysis of 7 gas components with a single injection; SDG220, a portable transformer oil chromatograph manufactured by Shanghai Yizhan Environmental Protection Technology Co., Ltd., which is small in size and light in weight, and convenient for rapid on-site analysis.

[0032] Photoacoustic spectroscopy detectors: DKG-200F, a photoacoustic spectroscopy gas analyzer for oil from Duketech, based on infrared photoacoustic spectroscopy technology, enabling high-sensitivity measurement; GW-2060; Wuhan Ganwei Technology Co., Ltd.'s online monitoring system for gas in transformer oil, combining semiconductor laser technology and photoacoustic spectroscopy technology.

[0033] Laser Spectrometer: GXG-209: A laser spectrometer multi-gas analyzer from Optical Power IoT, which uses laser multispectral and other gas detection technologies to detect the concentration of multiple gases.

[0034] Combination Figure 3 , Figures 5-6 As shown, the side buffer 32 includes a first hinge ball 321, which is arranged in a ring at equal intervals and hinged to the upper end of the ring frame 31. A side buffer spring 322 is fixedly connected to the inner side of the first hinge ball 321, and a fixing plate 323 is fixedly installed on the inner side of the side buffer spring 322. A second hinge ball 324 is rotatably connected to the inner side of the fixing plate 323. The inner side of the second hinge ball 324 is connected to the outer side of the vertical buffer 33. The vertical buffer 33 includes a fixing seat 331, which is hinged to the inner side of the second hinge ball 324. A main buffer is fixedly installed at the bottom of the fixing seat 331. Spring 332, the bottom of the main buffer spring 332 is fixedly mounted with a bonding plate 333, the bottom of the bonding plate 333 is rotatably connected with balls 334 at equal intervals, the bottom of the balls 334 is bonded to the bottom of the inner ring frame 31, the top of the fixed seat 331 is connected to the bottom of the mounting bracket 34, a side damper 325 is provided between the first hinge ball 321 and the fixed plate 323, the bottom of the fixed seat 331 and the top of the bonding plate 333 are fixedly mounted with a main damper 335, the side buffer spring 322 is sleeved on the outside of the side damper 325, and the main buffer spring 332 is sleeved on the outside of the main damper 335.

[0035] In the technical solution described in the above-described embodiments of this application, during the operation and movement of the high-precision online monitoring device for dissolved gases in transformer oil, the side buffer 32 and the vertical buffer 33 work together to achieve all-round buffering and shock absorption. When the device is subjected to impact forces from different directions, the first hinge ball 321, which is arranged in a ring at the upper end of the annular frame 31, rotates, causing the side buffer spring 322 to stretch or compress. The side buffer spring 322 absorbs energy through deformation under force, while the side damper 325 suppresses the oscillation of the spring, allowing the side buffer spring 322 to stabilize quickly and avoid continuous shaking. The rotation of the first hinge ball 321 is transmitted to the second hinge ball 324 through the fixed plate 323, and the linkage of the second hinge ball 324... This ensures that the side buffer spring 322 can function effectively under impacts in multiple directions. In the vertical direction, when the device is impacted, the fixed seat 331 drives the main buffer spring 332 to move downward. The main buffer spring 332 is compressed and generates elastic deformation, absorbing the impact force in the vertical direction. The main damper 335 between the fixed seat 331 and the bonding plate 333 plays a damping role simultaneously, reducing the rebound oscillation of the spring. The ball bearings 334 at the bottom of the bonding plate 333 can roll at the bottom of the annular frame 31, reducing the friction when the fixed seat 331 moves, so that the vertical buffer 33 can buffer the vertical vibration more smoothly. The combined effect of multiple structures ensures the stable operation of the online monitoring instrument 5 and reduces the impact of external vibration on the detection accuracy.

[0036] Example 2

[0037] Combination Figures 1-4 As shown, universal balls 8 are rotatably connected to the four corners of the bottom of the box 1. The outer edges of the box 1 and the cover plate 6 are all rounded. Square grooves 9 are provided on both sides of the lower front end and both sides of the lower back end of the box 1. Anti-slip screws 10 are threaded into the inside of the square grooves 9. The bottom of the anti-slip screws 10 passes through the box 1 and is fixedly connected to an anti-slip base plate 11. The adjustment mechanism 2 includes a vertical rail 21, which is fixedly connected to the middle of the rear side of the box 1. A drive motor 22 is fixedly connected to the bottom of the vertical rail 21. A lead screw 23 is fixedly connected to the output end of the drive motor 22 through the vertical rail 21. A movable block 24 is threadedly connected to the outer surface of the lead screw 23. The front of the movable block 24 is connected to the back of the annular frame 31. A movable rod 25 is fixedly connected to the top of the movable block 24. The top of the movable rod 25 is connected to the bottom of the cover plate 6.

[0038] In the above-described embodiments of this application, the universal balls 8 at the four corners of the bottom of the housing 1 can rotate freely during use, allowing the device to move flexibly in all directions on the ground to meet the needs of different detection positions. After moving into position, the anti-slip screws 10 in the square grooves 9 at the lower end of the front and back of the housing 1 are rotated to drive the anti-slip base plate 11 to descend until the anti-slip base plate 11 is tightly attached to the ground, increasing the friction with the ground and firmly fixing the device in the designated position to prevent displacement during the detection process. In the adjustment mechanism 2, after the drive motor 22 at the bottom of the vertical rail 21 is started, it outputs power to drive the lead screw 23 to rotate. Since the lead screw 23 is connected to the movable block 24 by a thread, the rotation of the lead screw 23 is converted into a movable block 24. The movable block 24 slides linearly within the vertical rail 21. The front of the movable block 24 is connected to the annular frame 31, which drives the buffer mechanism 3 and the online monitoring instrument 5 to adjust their vertical positions. The movable rod 25 at the top of the movable block 24 is connected to the cover plate 6. When the movable block 24 moves, it synchronously drives the cover plate 6 to open and close. When the online monitoring instrument 5 is needed, the drive motor 22 rotates to raise the movable block 24, pushing the online monitoring instrument 5 out of the housing 1, and the cover plate 6 opens. After the detection is completed, the drive motor 22 reverses, the movable block 24 descends, the online monitoring instrument 5 retracts into the housing 1, and the cover plate 6 closes. The rounded corner design of the outer surfaces of the housing 1 and the cover plate 6 can effectively reduce the impact force during collision, and the protective device also reduces the risk of personnel injury.

[0039] The working principle and advantages of this utility model are as follows: This device, through the coordinated operation of the adjusting mechanism 2 and the buffer mechanism 3, can effectively improve the operational convenience and equipment protection performance of online monitoring of dissolved gases in transformer oil. The adjusting mechanism 2 uses the drive motor 22 as the power source. When the motor is running, it drives the lead screw 23 to rotate synchronously. Based on the nut transmission principle of the lead screw 23, it drives the movable block 24 to slide stably within the vertical rail 21. As the movable block 24 moves, the annular frame 31 connected to its front end rises and falls accordingly, thereby driving the buffer mechanism 3 and the online monitoring instrument 5 to adjust their vertical positions. At the same time, the movement of the movable block 24 is transmitted through the movable rod 25, pushing the cover plate 6 to open and close, so that the online monitoring instrument 5 can smoothly exit the enclosure. The online monitoring instrument 5 extends or retracts internally. When testing is required, it rises to the outside of the housing 1. When testing is completed or maintenance is needed, the instrument can be retracted back into the housing 1 by controlling the screw 23 to rotate in the opposite direction. At this time, the cover 6 automatically closes, effectively protecting the equipment from the influence of the external environment. The online monitoring instrument 5 is electrically connected to the battery using wires, plugs, and sockets. This connection method facilitates quick assembly and disassembly, greatly improving maintenance efficiency. In addition, the bottom of the device is equipped with a universal ball 8, which supports flexible movement in multiple directions. After moving into position, the anti-slip screw 10 in the rotating square groove 9 drives the anti-slip base plate 11 to descend until it is in close contact with the ground, thereby achieving stable positioning and ensuring the stability of the monitoring work.

[0040] The buffer mechanism 3 provides comprehensive shock absorption protection for the device. During the movement of the device, the side buffer spring 322 and the main buffer spring 332 cooperate with each other to undertake the shock absorption task. The side buffer spring 322 achieves multi-angle linkage through the hinge structure of the first hinge ball 321 and the second hinge ball 324. No matter which direction the equipment is impacted from, the hinge ball can rotate flexibly, driving the side buffer spring 322 to stretch or compress synchronously, thereby effectively absorbing the impact force from different directions. When the equipment is impacted by a vertical force, the fixed seat 331 moves down to compress the main buffer spring 332, and the main buffer spring 332 generates elastic deformation, which works in synergy with the side buffer spring 322 to further enhance the shock absorption effect. In addition, the setting of the main damper 335 and the side damper 325 can effectively suppress the reciprocating oscillation of the spring and convert the impact energy into heat energy through the damping effect, further improving the buffer performance of the device, ensuring the stable operation of the online monitoring instrument 5 under complex working conditions, and significantly enhancing the practicality and reliability of the device.

[0041] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A high-precision transformer oil dissolved gas on-line monitoring device, characterized in that, The device includes a housing (1), an adjustment mechanism (2) is fixedly installed on the rear side of the housing (1), a buffer mechanism (3) is fixedly installed on the front of the adjustment mechanism (2), a base plate (4) is fixedly installed on the top of the buffer mechanism (3), an online monitoring instrument (5) is fixedly installed on the top of the base plate (4), a cover plate (6) is fixedly installed on the top of the adjustment mechanism (2), the cover plate (6) covers the top of the housing (1), and a bridge-type handrail (7) is fixedly connected to the top of the cover plate (6). The buffer mechanism (3) includes an annular frame (31), which is fixedly connected to the front of the adjustment mechanism (2). Side buffers (32) are fixedly installed at equal intervals inside the annular frame (31). Vertical buffers (33) are fixedly installed on the inner side of the side buffers (32). The bottom of the vertical buffers (33) is fitted and connected to the bottom of the annular frame (31). A mounting bracket (34) is fixedly installed on the top of the vertical buffers (33). The top of the mounting bracket (34) is connected to the bottom of the base plate (4).

2. The on-line monitoring device for dissolved gases in transformer oil according to claim 1, characterized in that, The side buffer (32) includes a first hinge ball (321), which is arranged in a ring at equal intervals and hinged to the upper end of the ring frame (31). A side buffer spring (322) is fixedly connected to the inner side of the first hinge ball (321), and a fixing plate (323) is fixedly installed on the inner side of the side buffer spring (322). A second hinge ball (324) is rotatably connected to the inner side of the fixing plate (323), and the inner side of the second hinge ball (324) is connected to the outer side of the vertical buffer (33).

3. The on-line monitoring device for dissolved gases in transformer oil according to claim 2, characterized in that, The vertical buffer (33) includes a fixed seat (331), which is hinged to the inner side of the second hinge ball (324). A main buffer spring (332) is fixedly installed at the bottom of the fixed seat (331). A bonding plate (333) is fixedly installed at the bottom of the main buffer spring (332). A ball bearing (334) is rotatably connected at equal intervals at the bottom of the bonding plate (333). The bottom of the ball bearing (334) is in contact with the bottom of the inner ring frame (31). The top of the fixed seat (331) is connected to the bottom of the mounting bracket (34).

4. The on-line monitoring device for dissolved gases in transformer oil according to claim 3, characterized in that, A side damper (325) is provided between the first hinge ball (321) and the fixed plate (323). A main damper (335) is fixedly installed at the bottom of the fixed seat (331) and the top of the bonding plate (333). The side buffer spring (322) is sleeved on the outside of the side damper (325), and the main buffer spring (332) is sleeved on the outside of the main damper (335).

5. The on-line monitoring device for dissolved gases in transformer oil according to claim 4, characterized in that, The bottom four corners of the box (1) are all rotatably connected to universal balls (8), and the outer surface edges of the box (1) and the cover plate (6) are all set to be arc-shaped.

6. The on-line monitoring device for dissolved gases in transformer oil according to claim 1, characterized in that, Square grooves (9) are provided on both sides of the lower front end and both sides of the lower back end of the box (1). Anti-slip screws (10) are threaded into the inside of the square grooves (9). The bottom of the anti-slip screws (10) passes through the box (1) and is fixedly connected to an anti-slip base plate (11).

7. The on-line monitoring device for dissolved gases in transformer oil according to claim 1, characterized in that, The adjustment mechanism (2) includes a vertical rail (21), which is fixedly connected to the middle of the rear side of the box (1). A drive motor (22) is fixedly connected to the bottom of the vertical rail (21). A lead screw (23) is fixedly connected to the output end of the drive motor (22) through the vertical rail (21). A movable block (24) is threadedly connected to the outer surface of the lead screw (23). The front of the movable block (24) is connected to the back of the annular frame (31). A movable rod (25) is fixedly connected to the top of the movable block (24). The top of the movable rod (25) is connected to the bottom of the cover plate (6).

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