Device for detecting gas in transformer oil
By designing the mixing structure and liquid level structure of the gas detection device in the transformer oil, the problems of uneven dissolution and adsorption of gas in the oil are solved, and the accuracy of gas detection is achieved.
Patent Information
- Application Number
- CN202421906453.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-07
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-08-07
AI Technical Summary
When gases in existing transformer oil are detected, some of the gases are unevenly dissolved in the oil, which is easily adsorbed by solid materials inside the transformer, resulting in the detection results that cannot truly reflect the actual content of the gas.
A gas detection device in transformer oil is designed, including a mixing structure and a liquid level structure. Through the meshing of the driving gear and the driven gear, the mixing oil and liquid of the stirring leaf is driven, and combined with the intermittent movement of the telescopic conductor and the gas detection head, the uniform distribution and detection of gas in the oil is achieved.
It effectively avoids uneven dissolution and adsorption of gas in oil, ensuring that the detection results accurately reflect the actual content of gas in oil.
Smart Images
Figure CN223217464U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformers, in particular to a gas detection device in transformer oil. Background Art
[0002] Transformer oil is a mineral oil obtained by distillation and refining of natural petroleum. It is a mixture of pure, stable, low-viscosity, good insulation and cooling liquid natural hydrocarbons obtained by acid-base refining treatment of the lubricating oil fraction in petroleum. It is commonly known as square shed oil and is a light yellow transparent liquid.
[0003] After searching, the Chinese patent publication number CN220231549U, the document disclosed in this patent is as follows: A trace gas detection device for detecting overheated transformer oil, comprising a detection component, the detection component comprising an oil storage tank, a cover plate, a detection hole, a support tube, a detector, a first wire, a gas detection head, transformer oil, and a second wire. The upper part of the inner wall of the oil storage tank is fixedly connected to the cover plate, and a detection hole is opened at the center of the upper surface of the cover plate. The utility model heats the transformer oil by energizing the heating wire, so that the spiral electric heating ring is heated. At the same time, the transformer oil is heated by the heat generated by the high-voltage coil, the low-voltage coil and the iron core when they are working. This detection method adds the heating of the transformer oil by the high-voltage coil, the low-voltage coil and the iron core when they are working on the basis of the heating of the spiral electric heating ring, so that there is no difference between the trace gas generated by overheating of the transformer oil in the oil storage tank and the trace gas generated by overheating when the transformer is actually working, thereby meeting the actual detection needs.
[0004] Existing structures detect gas by heating it during the gas detection process. However, some gases tend to dissolve unevenly in the oil and are easily adsorbed by solid materials inside the transformer, resulting in the detection results not accurately reflecting the actual gas content in the oil. In view of this, we propose a transformer oil gas detection device. Utility Model Content
[0005] In response to the shortcomings of the prior art, the present invention provides a gas detection device in transformer oil, which solves the problem of uneven dissolution of some gas obtained by heating in the oil. To achieve the above purpose, the present invention is implemented through the following technical solutions: a gas detection device in transformer oil, comprising an oil storage tank, a detector disposed above the oil storage tank, a display disposed on the outside of the detector, a retractable wire connected to the bottom of the detector, the retractable wire passing through the oil storage pipe and connected to a gas detection head, a heat detection wire connected to the outside of the detector, a mixing structure disposed on the top of the oil storage tank, the mixing structure comprising a motor, a limit block fixedly connected to the outside of the motor, the limit block fixedly connected to the top of the oil storage tank, an output shaft of the motor fixedly connected to a driving gear, a rotating rod rotatably connected to the top of the oil storage tank via a bearing, a stirring blade fixedly connected to the top of the rotating rod, a driven gear fixedly sleeved on the surface of the rotating rod, the driving gear meshing with the driven gear.
[0006] Preferably, a liquid level structure is provided on the mixing structure, and the liquid level structure includes an inner screw sleeve, and the inner screw sleeve fixed sleeve is provided on the outer wall of the retractable wire, the outer side of the inner screw sleeve is provided with an external thread, the outer side of the inner screw sleeve is provided with an outer screw sleeve, the inner side of the outer screw sleeve is provided with an internal thread, the outer screw sleeve is connected to the outer thread of the inner screw sleeve, the outer side of the outer screw sleeve is fixedly connected to the inner wall of the oil storage tank, the outer fixed sleeve of the outer screw sleeve is provided with a rotating block, the rotating block is provided with an arc groove and a rotating groove, and a turntable is provided in cooperation with the rotating block, the top of the turntable is fixedly connected to a fixing rod, and the top of the rotating rod is fixedly connected to the bottom of the turntable.
[0007] Preferably, an iron core is fixedly connected to the inner wall of the oil storage tank, and a low-voltage coil and a high-voltage coil are respectively sleeved on both side surfaces of the iron core. An insulating tube is fixedly connected to the top of the iron core, and the top end of the insulation is fixedly passed through the inner wall of the oil storage tank and extends upward. The heat generated by the iron core, high-voltage coil and low-voltage coil when they are in operation heats the transformer oil inside the oil storage tank, so that there is no difference between the trace gas generated by overheating of the transformer oil and the trace gas generated by overheating of the transformer.
[0008] Preferably, a heating wire is provided on the inner wall of the oil storage tank, the bottom end of the heating wire is connected to a spiral heating coil, and a sealing ring is provided on the outer fixed sleeve of the heating wire. The sealing ring is in sealing contact with the top of the oil storage tank, and the transformer oil is heated by the spiral heating coil, thereby facilitating uniform heating of the transformer oil.
[0009] Preferably, a transparent tube is provided through the upper and lower parts of the oil storage tank, and a scale is provided on the transparent tube. The transformer oil enters the interior of the transparent tube through the bottom of the transparent tube. The oil level position can be observed through the transparent tube. The setting of the scale facilitates observation of the oil level in the oil storage tank.
[0010] Preferably, the iron core is in the shape of a Chinese character "U", the bottom end of the rotating rod is movable and passes through the top of the iron core, and the stirring blade is located in the middle of the iron core. The oil is mixed evenly by rotating the stirring blade to prevent some gases from dissolving unevenly in the oil or being adsorbed by solid materials inside the transformer, resulting in the detection results not being able to truly reflect the actual content of gas in the oil.
[0011] Preferably, the fixed rod is arranged in cooperation with the rotating groove, the turntable is matched with the rotating groove, and the number of the arc groove and the rotating groove opened on the rotating block is four respectively. The fixed rod is arranged to follow the turntable and rotate in sequence to the rotating groove opened on the rotating block, thereby driving the rotating block to rotate intermittently, realizing the intermittent downward movement of the gas detection head, and being able to detect gas conditions at different heights.
[0012] As can be seen from the above technical solutions, the transformer oil gas detection device provided in the embodiments of this specification has at least the following beneficial effects:
[0013] (1) The utility model sets a mixing structure. Due to the meshing of the driving gear and the driven gear, the stirring blade mixes the oil and gas inside the oil storage tank, thereby preventing some gas from dissolving unevenly in the oil or being adsorbed by the solid material inside the transformer, resulting in the detection result not being able to truly reflect the actual content of gas in the oil.
[0014] (2) The utility model sets up a liquid level structure, and uses the rotating rod to drive the turntable to rotate in the same direction during the rotation process. The fixed rod follows the turntable to rotate in the rotating groove opened by the rotating block in turn, thereby driving the rotating block to rotate intermittently, and the inner side of the outer screw sleeve drives the inner screw sleeve to move downward. Since the retractable wire is fixed to the inner side of the inner screw sleeve, the retractable wire follows the inner screw sleeve to move downward, thereby realizing the intermittent downward movement of the gas detection head, which can detect the gas conditions at different heights in the oil. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the iron core, low-voltage coil, high-voltage coil, and insulating tube in the utility model;
[0018] Figure 3 It is a schematic diagram of the mixing structure and liquid level structure in the present utility model;
[0019] Figure 4 It is a schematic diagram of the heating structure in the present invention.
[0020] In the figure: 1. Oil storage tank; 2. Transparent tube; 3. Scale; 4. Mixing structure; 401. Motor; 402. Driving gear; 403. Driven gear; 404. Rotating rod; 405. Stirring blade; 5. Liquid level structure; 501. Turntable; 502. Rotating block; 504. Outer screw sleeve; 505. Inner screw sleeve; 6. Detector; 801. Heating wire; 802. Sealing ring; 803. Spiral heating coil; 9. Display; 10. Thermal probe wire; 11. Iron core; 12. Low-voltage coil; 13. Insulating tube; 14. Gas detection head; 15. High-voltage coil. DETAILED DESCRIPTION
[0021] 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.
[0022] Example 1
[0023] See also Figures 1-4As shown, a gas detection device in transformer oil includes an oil storage tank 1, a detector 6 is provided above the oil storage tank 1, a display 9 is provided on the outside of the detector 6, a retractable wire is connected to the bottom of the detector 6, the retractable wire passes through the oil storage pipe and is connected to a gas detection head 14, a heat detection wire 10 is connected to the outside of the detector 6, a mixing structure 4 is provided on the top of the oil storage tank 1, the mixing structure 4 includes a motor 401, the outside of the motor 401 is fixedly connected to a limit block, the limit block is fixedly connected to the top of the oil storage tank 1, and the output shaft of the motor 401 is fixedly connected to the driving gear 40 2. The top of the oil storage tank 1 is rotatably connected to a rotating rod 404 through a bearing. The top of the rotating rod 404 is fixedly connected to a stirring blade 405. The surface of the rotating rod 404 is fixedly sleeved with a driven gear 403. The driving gear 402 is engaged with the driven gear 403. The inner wall of the oil storage tank 1 is fixedly connected to an iron core 11. The two sides of the iron core 11 are respectively sleeved with a low-voltage coil 12 and a high-voltage coil 15. The top of the iron core 11 is fixedly connected to an insulating tube 13. The top of the insulation is fixedly passed through the inner wall of the oil storage tank 1 and extends upward. The iron core 11, the high-voltage coil 15, and the low-voltage coil 12 are arranged to work. The heat generated during the heating process heats the transformer oil inside the oil storage tank 1, so that there is no difference between the trace gas generated by the overheating of the transformer oil and the trace gas generated by the overheating of the transformer. The inner wall of the oil storage tank 1 is provided with a heating wire 801, and the bottom end of the heating wire 801 is connected to a spiral heating ring 803. The outer fixed sleeve of the heating wire 801 is provided with a sealing ring 802. The sealing ring 802 is in sealing contact with the top of the oil storage tank 1. The transformer oil is heated by the spiral heating ring 803, so that the transformer oil is heated evenly. A transparent tube 2 is provided through the upper and lower parts of the oil storage tank 1. A scale 3 is provided, and the transformer oil enters the interior of the transparent tube 2 through the bottom of the transparent tube 2. The oil level position can be observed through the transparent tube 2. The setting of the scale 3 facilitates observation of the oil level in the oil storage tank 1. The iron core 11 is in the shape of a "U". The bottom end of the rotating rod 404 movably passes through the top of the iron core 11. The stirring blade 405 is located in the middle of the iron core 11. The stirring blade 405 is rotated to mix the oil evenly, thereby preventing some gases from dissolving unevenly in the oil or being adsorbed by the solid materials inside the transformer, resulting in the detection results not being able to truly reflect the actual content of gas in the oil.
[0024] Furthermore, by setting up the mixing structure 4, due to the engagement of the driving gear 402 and the driven gear 403, the stirring blade 405 mixes the oil and gas inside the oil storage tank 1, thereby preventing some gas from dissolving unevenly in the oil or being adsorbed by the solid material inside the transformer, resulting in the detection result not being able to truly reflect the actual content of gas in the oil.
[0025] Example 2
[0026] See also Figures 1-4As shown, a liquid level structure 5 is provided on the mixing structure 4, and the liquid level structure 5 includes an inner screw sleeve 505, the inner screw sleeve 505 is fixedly sleeved on the outer wall of the retractable wire, the outer side of the inner screw sleeve 505 is provided with an external thread, the outer side of the inner screw sleeve 505 is provided with an outer screw sleeve 504, the inner side of the outer screw sleeve 504 is provided with an internal thread, the outer screw sleeve 504 is connected to the outer side of the inner screw sleeve 505 by threads, the outer side of the outer screw sleeve 504 is fixedly connected to the inner wall of the oil storage tank 1, the outer fixed sleeve of the outer screw sleeve 504 is provided with a rotating block 502, and the rotating block 502 is provided with an arc groove and a rotating groove. A turntable 501 is provided in conjunction with the rotating block 502. A fixed rod is fixedly connected to the top of the turntable 501. The top of the rotating rod 404 is fixedly connected to the bottom of the turntable 501. The fixed rod is provided in conjunction with the rotating groove. The turntable 501 fits in with the rotating groove. There are four arc grooves and four rotating grooves on the rotating block 502 respectively. The fixed rod follows the turntable 501 and rotates in sequence into the rotating groove opened on the rotating block 502, thereby driving the rotating block 502 to rotate intermittently, thereby realizing intermittent downward movement of the gas detection head 14, and being able to detect gas conditions at different heights.
[0027] Furthermore, by setting up the liquid level structure 5, the rotating rod 404 is used to drive the turntable 501 to rotate in the same direction during the rotation process, and the fixed rod follows the turntable 501 to rotate in sequence to the rotating groove opened by the rotating block 502, thereby driving the rotating block 502 to rotate intermittently, and the inner side of the outer screw sleeve 504 drives the inner screw sleeve 505 to move downward. Since the retractable wire is fixed to the inner side of the inner screw sleeve 505, the retractable wire follows the inner screw sleeve 505 to move downward, thereby realizing the intermittent downward movement of the gas detection head 14, which can detect the gas conditions at different heights in the oil.
[0028] When in use, the utility model is a gas detection device in transformer oil. By sequentially starting the iron core 11, the high-voltage coil 15, and the low-voltage coil 12, the heat generated by the iron core 11, the high-voltage coil 15, and the low-voltage coil 12 when they are in operation heats the transformer oil inside the oil storage tank 1, so that there is no difference between the trace gas generated by overheating of the transformer oil and the trace gas generated by overheating of the transformer. By starting the motor 401, the output shaft of the motor 401 drives the driving gear 402 to rotate. Through the meshing of the driving gear 402 and the driven gear 403, the driving gear 402 rotates and the driven gear 403 rotates. The driven gear 403 drives the rotating rod 404 and the stirring blade 405 at the bottom end of the rotating rod 404 to rotate. The stirring blade 405 is used to mix the oil and gas inside the oil storage tank 1 to prevent some gases from dissolving unevenly in the oil or being adsorbed by the solid material inside the transformer, resulting in the detection result not being truly reflected. The actual content of gas in the oil, the rotating rod 404 drives the turntable 501 to rotate in the same direction during the rotation process, and follows the turntable 501 to rotate in the rotating groove opened by the rotating block 502 through the fixed rod, thereby driving the rotating block 502 to rotate intermittently, and the inner side of the outer screw sleeve 504 drives the inner screw sleeve 505 to move downward. Since the retractable wire is fixed to the inner side of the inner screw sleeve 505, the retractable wire follows the inner screw sleeve 505 to move downward, thereby realizing the intermittent downward movement of the gas detection head 14, which can detect the gas conditions at different heights in the oil. In order to avoid uneven heating, the spiral electric heating ring can be started to heat the transformer oil, thereby facilitating uniform heating of the transformer oil and improving the heating efficiency of the oil. The transformer oil inside the oil storage tank 1 enters the interior of the transparent tube 2 through the bottom of the transparent tube 2. The oil liquid level position can be observed through the transparent tube 2, and the setting of the scale 3 facilitates the observation of the oil liquid level in the oil storage tank 1.
[0029] The above implementation methods are only used to illustrate the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the embodiments of the present invention. Therefore, all equivalent technical solutions also fall within the scope of the embodiments of the present invention, and the scope of patent protection of the embodiments of the present invention should be defined by the claims.
Claims
1. A gas detection device in transformer oil, comprising an oil storage tank (1), characterized in that: Above the fuel storage tank (1), a detector (6) is provided. Outside the detector (6), a display (9) is provided. At the bottom of the detector (6), a retractable wire is connected. The retractable wire penetrates through the oil storage pipe and is connected to a gas detection head (14). Outside the detector (6), a temperature detection wire (10) is connected. At the top of the fuel storage tank (1), a mixing structure (4) is provided. The mixing structure (4) includes a motor (401). Outside the motor (401), a limiting block is fixedly connected. The limiting block is fixedly connected to the top of the fuel storage tank (1) body. The output shaft of the motor (401) is fixedly connected to a driving gear (402). The top of the fuel storage tank (1) is rotationally connected to a rotating rod (404) through a bearing. At the top of the rotating rod (404), a stirring blade (405) is fixedly connected. On the surface of the rotating rod (404), a driven gear (403) is fixedly sleeved. The driving gear (402) meshes with the driven gear (403).
2. A transformer oil gas detection device according to claim 1, characterized in that: On the mixing structure (4), a liquid level structure (5) is provided. The liquid level structure (5) includes an internal screw sleeve (505). The internal screw sleeve (505) is fixedly sleeved on the outer wall of the retractable wire. On the outside of the internal screw sleeve (505), an external thread is provided. On the outside of the internal screw sleeve (505), an external screw sleeve (504) is provided. On the inside of the external screw sleeve (504), an internal thread is provided. The external screw sleeve (504) is threadedly connected to the outside of the internal screw sleeve (505). The outside of the external screw sleeve (504) is fixedly connected to the inner wall of the fuel storage tank (1). On the outside of the external screw sleeve (504), a rotating block (502) is fixedly sleeved. An arc-shaped groove and a rotating groove are provided on the rotating block (502). A turntable (501) is provided in cooperation with the rotating block (502). At the top of the turntable (501), a fixed rod is fixedly connected. The top of the rotating rod (404) is fixedly connected to the bottom of the turntable (501).
3. A gas detection device in transformer oil according to claim 1, characterized in that: The inner wall of the fuel storage tank (1) is fixedly connected with an iron core (11). On the two side surfaces of the iron core (11), a low-voltage coil (12) and a high-voltage coil (15) are respectively sleeved. At the top of the iron core (11), an insulating tube (13) is fixedly connected. The top of the insulator fixedly penetrates through the inner wall of the fuel storage tank (1) and extends upward.
4. A gas detection device in transformer oil according to claim 1, characterized in that: On the inner wall of the fuel storage tank (1), a heating wire (801) is provided. At the bottom end of the heating wire (801), a spiral heating coil is connected. On the outside of the heating wire (801), a sealing ring (802) is fixedly sleeved. The sealing ring (802) is in sealed contact with the top of the fuel storage tank (1).
5. The gas detection device in transformer oil according to claim 1, characterized in that: A transparent tube (2) runs through the fuel storage tank (1) vertically. A scale (3) is provided on the transparent tube (2).
6. A gas detection device in transformer oil according to claim 3, characterized in that: The iron core (11) is in the shape of a "return". The bottom end of the rotating rod (404) movably penetrates through the top of the iron core (11). The stirring blade (405) is located in the middle of the iron core (11).
7. A gas detection device in transformer oil according to claim 2, characterized in that: The fixing rod is matched with the rotating slot, the rotating disk (501) is matched with the rotating slot, and the number of the arc slot and the rotating slot provided on the rotating block (502) is four respectively.