Real-time monitoring mutual inductor inflation device

Abstract

The invention discloses a real-time monitoring mutual inductor inflation device, and relates to the field of transformers, the real-time monitoring mutual inductor inflation device comprises a dry air bottle, the output end of the dry air bottle is connected with a breather pipe, the breather pipe is connected with an insertion type valve pipe, the insertion type valve pipe is connected to one end of a connecting pipe in an insertion manner, and the other end of the connecting pipe is provided with a pipe joint. High-pressure gas in the dry air bottle can be conveyed into the mutual inductor through the ventilation pipe, the insertion type valve pipe, the connecting pipe and the pipe connector in sequence, the purpose of inflating the interior of the mutual inductor is achieved, and therefore the protection effect is achieved in the transportation process; the diaphragm capsule pressure gauge can monitor the pressure in the connecting pipe in real time, the connecting pipe is communicated with the mutual inductor through the pipe connector, the pressure in the mutual inductor is obtained by obtaining the gas pressure in the connecting pipe, and therefore it is ensured that the gas pressure in the mutual inductor is stable.

Description

Technical Field

[0001] The present invention relates to the field of transformers, and in particular to a device for real-time monitoring of transformer charging. Background Art

[0002] During the transportation of the transformer, in order to reduce the transportation weight, dry air is usually introduced into the lifting base instead of transformer oil, so that the transformer is kept in a dry environment before use, thereby ensuring the quality of the transformer.

[0003] During the traditional transformer inflation process, the air pressure inside the booster cannot be monitored in real time, and is usually handled based on experience. This may cause the air pressure inside the booster to be excessive or insufficient, making it difficult to ensure the safety and quality of the transformer during transportation.

[0004] Therefore, it is necessary to propose a real-time monitoring transformer inflation device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a real-time monitoring device for transformer inflation to solve the problem that during the traditional transformer inflation process, the air pressure in the lifting seat cannot be monitored in real time. Usually, it is handled based on experience, which will cause the air pressure in the lifting seat to be too high or insufficient, making it difficult to ensure the safety and quality of the transformer during transportation.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a real-time monitoring transformer charging device, comprising a dry air bottle, the output end of the dry air bottle is connected to a ventilation pipe, the ventilation pipe is connected to an inserted valve pipe, the inserted valve pipe is plugged into one end of the connecting pipe, the other end of the connecting pipe is provided with a pipe joint, the pipe joint is connected to the transformer, the connecting pipe is provided with an expansion pipe section, the inner ring of the expansion pipe section is provided with an annular groove, a stainless steel baffle is movably provided in the annular groove, the diameter of the stainless steel baffle is smaller than the outer diameter of the annular groove and larger than the inner diameter of the connecting pipe, a spring is fixedly provided on a side of the stainless steel baffle close to the pipe joint, a groove is provided on the inner wall of the annular groove close to the pipe joint, the end of the spring away from the stainless steel baffle is fixedly connected to the bottom of the groove, and a magnetic ring is fixedly provided on the end of the inserted valve pipe away from the ventilation pipe, and the magnetic ring and the stainless steel baffle are attracted to each other.

[0007] Preferably, a sponge ring is fixedly provided on the side of the stainless steel baffle away from the spring, and one end of the sponge ring away from the stainless steel baffle is fixedly connected to the inner wall of the annular groove close to the inserted valve tube, and an annular conical groove is provided on the outer ring wall of the annular groove, and the opening of the annular conical groove close to the inserted valve tube is larger, and a drainage assembly is provided at the bottom of the annular conical groove close to the inserted valve tube, and the drainage assembly includes a drainage hole and a solenoid valve, and the drainage hole is connected between the inside and outside of the expansion pipe section, and the solenoid valve is arranged in the drainage hole, and a water level sensor for monitoring the water level in the annular groove is fixedly installed on the inner wall of the annular groove.

[0008] Preferably, the magnetic ring is attracted to the inner wall of the connecting pipe.

[0009] Preferably, the ends of the pipe joint and the connecting pipe that are close to each other are respectively fixed with a first flange and a second flange, a bent plate is provided above the connecting pipe, and a connecting plate is fixedly provided at the end of the bent plate. The connecting plate is movably fitted on the side of the second flange away from the first flange, and the connecting plate, the first flange and the second flange are fixed by a screw and nut assembly.

[0010] Preferably, the lower end of the connecting pipe is connected to a connecting pipe, and the lower end of the connecting pipe is provided with a diaphragm pressure gauge, and the diaphragm pressure gauge is located on the side of the expansion pipe section away from the inserted valve tube.

[0011] Preferably, a sealing ring is fixedly provided on the outer ring of the insertable valve tube, and a rubber sealing ring is fixedly provided on one end of the connecting pipe close to the vent pipe, and the sealing ring is movably fitted on the rubber sealing ring.

[0012] Preferably, a rubber ring is fixedly provided at one end of the magnetic ring away from the inserted valve tube, and a chamfered corner is provided on the outer ring of the rubber ring.

[0013] Preferably, the grooves and springs are provided in plurality, and the plurality of grooves and springs are distributed in a circular array along the axis of the connecting pipe, and the plurality of grooves correspond to the plurality of springs one-to-one.

[0014] Preferably, an electric control magnetic valve is provided at the output end of the dry air bottle.

[0015] Technical effects and advantages of the present invention:

[0016] 1. The high-pressure gas in the dry air bottle can be transported to the interior of the transformer through the vent pipe, plug-in valve pipe, connecting pipe, and pipe joint in sequence, so as to achieve the purpose of inflating the interior of the transformer and thus play a protective role during transportation;

[0017] 2. The diaphragm pressure gauge can monitor the pressure in the connecting pipe in real time. Since the connecting pipe is connected to the transformer through the pipe joint, the gas pressure inside the connecting pipe is also the pressure inside the transformer, thus ensuring the stability of the gas pressure in the transformer.

[0018] 3. The bent plate is installed above the connecting pipe and the diaphragm pressure gauge to protect it during transportation;

[0019] 4. The magnetic ring is fixed on the inner wall of the connecting pipe in real time, which is convenient for quick fixation and insertion;

[0020] 5. Due to the attraction between the stainless steel baffle and the magnetic ring, the inserted valve tube will tend to extend into the inner part of the connecting pipe in real time, which will enable the sealing ring to press and fit the rubber sealing ring in real time to achieve a good sealing effect;

[0021] 6. Only after the gas has been filtered through the sponge ring to remove moisture will it enter the connecting pipe, pipe joint, and mutual inductor in sequence, achieving the purpose of filtering out water. During each use, as long as the connecting pipe is docked with the inserted valve tube, the stainless steel baffle will compress the sponge ring once, thereby automatically squeezing out the moisture contained in the sponge ring without the need for manual drainage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of the real-time monitoring transformer charging device of the present invention.

[0023] Figure 2 This is a structural schematic diagram of the pipe joint of the present invention from one perspective.

[0024] Figure 3 This is a schematic structural diagram of the pipe joint of the present invention from another perspective.

[0025] Figure 4 This is a cross-sectional view of the pipe joint of the present invention.

[0026] Figure 5 This is a schematic diagram of the connection between the connecting pipe and the insert-type valve tube of the present invention.

[0027] Figure 6 This is a schematic diagram of the connection between the connecting pipe and the inserted valve tube of the present invention when they are separated.

[0028] In the figure: 1. Dry air bottle; 2. Vent pipe; 3. Bend plate; 4. Pipe joint; 5. Transformer; 6. Diaphragm pressure gauge; 7. First flange; 8. Second flange; 9. Connecting plate; 10. Screw-nut assembly; 11. Connecting pipe; 12. Connecting pipe; 13. Expansion pipe section; 14. Drain assembly; 15. Insert valve tube; 16. Annular groove; 17. Sponge ring; 18. Rubber ring; 19. Magnetic ring; 20. Sealing ring; 21. Rubber sealing ring; 22. Water level sensor; 23. Drain hole; 24. Solenoid valve; 25. Annular cone groove; 26. Spring; 27. Stainless steel baffle; 28. Groove. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0030] The present invention provides Figures 1-6 A real-time monitoring transformer charging device shown in the figure includes a dry air bottle 1. The output end of the dry air bottle 1 is provided with an electric control magnetic valve. The output end of the dry air bottle 1 is also connected to a vent pipe 2, and the vent pipe 2 is connected to an insertable valve tube 15. The insertable valve tube 15 is plugged and connected to one end of a connecting pipe 12 to ensure sealing. The other end of the connecting pipe 12 is provided with a pipe joint 4, and the pipe joint 4 is connected to the transformer 5. When the electric control valve at the output end of the dry air bottle 1 is opened, the high-pressure gas in the dry air bottle 1 can be transported to the interior of the transformer 5 through the vent pipe 2, the insertable valve tube 15, the connecting pipe 12, and the pipe joint 4 in sequence, thereby achieving the purpose of inflating the interior of the transformer 5, thereby playing a protective role during transportation.

[0031] In order to solve the problem that the air pressure in the lifting seat cannot be monitored in real time during the inflation process of the traditional transformer, it is usually handled based on experience, which may cause the air pressure in the lifting seat to be too high or insufficient, making it difficult to ensure the safety and quality of the transformer during transportation. A connecting pipe 11 is provided at the lower end of the connecting pipe 12, and a diaphragm pressure gauge 6 is provided at the lower end of the connecting pipe 11. The diaphragm pressure gauge 6 is located on the side of the expansion pipe section 13 away from the inserted valve tube 15. The connecting pipe 11 and the connecting pipe 12 are welded to form a three-way pipeline structure. The diaphragm pressure gauge 6 can monitor the pressure in the connecting pipe 12 in real time. Since the connecting pipe 12 is connected to the transformer 5 through the pipe joint 4, the gas pressure inside the connecting pipe 12 is also the pressure inside the transformer 5, thereby ensuring the stability of the air pressure filled in the transformer 5.

[0032] A bent plate 3 is provided above the connecting pipe 12, and a connecting plate 9 is fixedly provided at the end of the bent plate 3. The first flange 7 and the second flange 8 are fixedly provided at the ends of the pipe joint 4 and the connecting pipe 12 close to each other, respectively. The connecting plate 9 is movably fitted on the side of the second flange 8 away from the first flange 7. The connecting plate 9, the first flange 7 and the second flange 8 are fixed by a screw and nut assembly 10. The bent plate 3 is provided above the connecting pipe 12 and the diaphragm pressure gauge 6 to play a protective role during transportation.

[0033] Furthermore, the second flange 8 and the first flange 7 can be fixedly connected while the bent plate 3 is fixed, which is simple and convenient to use.

[0034] It should be noted that the screw-nut assembly 10 includes a combination of a screw and two nuts, which is a common connecting piece and will not be described in detail here.

[0035] In order to facilitate the rapid connection and closing of the inflation pipes, an expansion pipe section 13 is provided on the connecting pipe 12, and an annular groove 16 is provided at the inner ring of the expansion pipe section 13. A stainless steel baffle 27 is movably provided in the annular groove 16. The diameter of the stainless steel baffle 27 is smaller than the outer diameter of the annular groove 16 and larger than the inner diameter of the connecting pipe 12. A spring 26 is fixedly provided on the side of the stainless steel baffle 27 close to the pipe joint 4, and a groove 28 is provided on the inner wall of the annular groove 16 close to the pipe joint 4. One end of the spring 26 away from the stainless steel baffle 27 is fixedly connected to the bottom of the groove 28. There are multiple grooves 28 and springs 26, and multiple grooves 28 and springs 26 are distributed in a circular array along the axis of the connecting pipe 12. Multiple grooves 28 correspond to multiple springs 26 one by one. A magnetic ring 19 is fixedly provided on the end of the inserted valve tube 15 away from the ventilation pipe 2. The magnetic ring 19 and the stainless steel baffle 27 are attracted to each other, and the magnetic ring 19 and the inner wall of the connecting pipe 12 are attracted to each other.

[0036] When the mutual inductor 5 is not inflated, the inserted valve tube 15 is removed from the connecting pipe 12. At this time, the tension of the spring 26 causes the stainless steel baffle 27 to fit on the inner wall of the annular groove 16 close to the pipe joint 4, thereby achieving sealing of the end of the connecting pipe 12.

[0037] When it is necessary to inflate the mutual inductor 5, the inserted valve tube 15 is inserted into the end of the connecting tube 12. After the inserted valve tube 15 is inserted into the end of the connecting tube 12, due to the attraction between the magnetic ring 19 and the stainless steel baffle 27, the stainless steel baffle 27 will be attracted and close to the magnetic ring 19, so that the stainless steel baffle 27 moves to the middle position of the annular groove 16, thereby realizing the connection between the inserted valve tube 15 and the connecting tube 12, which is convenient for inflation; and the magnetic ring 19 is also adsorbed and fixed on the inner wall of the connecting tube 12 in real time, which is convenient for quick fixation and insertion.

[0038] A sealing ring 20 is fixedly provided on the outer ring of the inserted valve tube 15, and a rubber sealing ring 21 is fixedly provided on the end of the connecting pipe 12 close to the ventilation pipe 2, and the sealing ring 20 is movably fitted on the rubber sealing ring 21; due to the mutual attraction between the stainless steel baffle 27 and the magnetic ring 19, the inserted valve tube 15 will tend to extend into the interior of the connecting pipe 12 in real time, which makes the sealing ring 20 able to press and fit the rubber sealing ring 21 in real time to achieve a good sealing effect.

[0039] It should be noted that, in actual use, the magnetism of the magnetic ring 19 is selected according to actual needs, which will not be elaborated here.

[0040] A rubber ring 18 is fixedly provided at one end of the magnetic ring 19 away from the inserted valve tube 15. The outer ring of the rubber ring 18 is provided with a chamfered corner. The rubber ring 18 is convenient for protecting the magnetic ring 19 when the inserted valve tube 15 is connected to the connecting pipe 12, and the chamfered corner setting makes it easy for the rubber ring 18 to be inserted into the connecting pipe 12.

[0041] Considering that the dry air bottle 1 contains high-pressure gas, a large amount of water is formed inside the dry air bottle 1 through compression, and the moisture will be contained in the gas and enter the mutual inductor 5. In order to ensure the dryness of the mutual inductor 5, a sponge ring 17 is fixedly provided on the side of the stainless steel baffle 27 away from the spring 26. The end of the sponge ring 17 away from the stainless steel baffle 27 is fixedly connected to the inner wall of the annular groove 16 on the side close to the inserted valve tube 15. An annular conical groove 25 is provided on the outer ring wall of the annular groove 16. The opening of the annular conical groove 25 is larger at one end close to the inserted valve tube 15. A drainage component 14 is provided at the bottom of the end of the annular conical groove 25 close to the inserted valve tube 15. The drainage component 14 includes a drainage hole 23 and a solenoid valve 24. The drainage hole 23 is connected between the inside and outside of the expansion pipe section 13. The solenoid valve 24 is arranged in the drainage hole 23. A water level sensor 22 for monitoring the water level in the annular groove 16 is fixedly installed on the inner wall of the annular groove 16.

[0042] During operation, the gas will enter the connecting pipe 12, the pipe joint 4 and the mutual inductor 5 in sequence after being filtered and dehydrated by the sponge ring 17, thereby achieving the purpose of filtering out water.

[0043] Furthermore, each time the connecting pipe 12 is connected to the insertable valve tube 15, the stainless steel baffle 27 will compress the sponge ring 17 once, thereby automatically squeezing out the water contained in the sponge ring 17 without manual drainage.

[0044] Furthermore, when the water in the sponge ring 17 is squeezed out, it flows along the annular groove 16 to the lower end of the annular conical groove 25. When the water level sensor 22 detects that there is water inside the annular groove 16, the solenoid valve 24 can be opened, so that the water can be automatically discharged from the drain hole 23, ensuring the dryness of the air; when there is no water, the solenoid valve 24 is closed.

Claims

1. A real-time monitoring transformer charging device, comprising a dry air bottle (1), characterized in that: The output end of the dry air bottle (1) is connected to a vent pipe (2), and an insert-type valve pipe (15) is connected to the vent pipe (2). The insert-type valve pipe (15) is plugged and connected to one end of a connecting pipe (12). The other end of the connecting pipe (12) is provided with a pipe joint (4), and the pipe joint (4) is connected to a mutual inductor (5). The connecting pipe (12) is provided with an expansion pipe section (13), and an annular groove (16) is provided at the inner ring of the expansion pipe section (13). A stainless steel baffle (27) is movably provided in the annular groove (16). The stainless steel baffle (27) is provided in a movable manner. 7) has a diameter smaller than the outer diameter of the annular groove (16) and larger than the inner diameter of the connecting pipe (12); a spring (26) is fixedly provided on one side of the stainless steel baffle (27) close to the pipe joint (4); a groove (28) is provided on the inner wall of one side of the annular groove (16) close to the pipe joint (4); one end of the spring (26) away from the stainless steel baffle (27) is fixedly connected to the bottom of the groove (28); and a magnetic ring (19) is fixedly provided on one end of the inserted valve tube (15) away from the vent pipe (2); and the magnetic ring (19) and the stainless steel baffle (27) are attracted to each other.

2. The real-time monitoring transformer charging device according to claim 1, characterized in that: A sponge ring (17) is fixedly provided on one side of the stainless steel baffle (27) away from the spring (26); one end of the sponge ring (17) away from the stainless steel baffle (27) is fixedly connected to the inner wall of the annular groove (16) close to the inserted valve tube (15); an annular conical groove (25) is provided on the outer ring wall of the annular groove (16); the annular conical groove (25) has a larger opening at one end close to the inserted valve tube (15); a drainage assembly (14) is provided at the bottom of one end of the annular conical groove (25) close to the inserted valve tube (15); the drainage assembly (14) includes a drainage hole (23) and a solenoid valve (24); the drainage hole (23) is connected between the inside and outside of the expansion pipe section (13); the solenoid valve (24) is provided in the drainage hole (23); a water level sensor (22) for monitoring the water level in the annular groove (16) is fixedly installed on the inner wall of the annular groove (16).

3. The real-time monitoring transformer charging device according to claim 1, characterized in that: The magnetic ring (19) and the inner wall of the connecting pipe (12) are attracted to each other.

4. The real-time monitoring transformer charging device according to claim 1, characterized in that: The ends of the pipe joint (4) and the connecting pipe (12) close to each other are respectively fixedly provided with a first flange (7) and a second flange (8); a bent plate (3) is provided above the connecting pipe (12); a connecting plate (9) is fixedly provided at the end of the bent plate (3); the connecting plate (9) is movably fitted on a side of the second flange (8) away from the first flange (7); the connecting plate (9), the first flange (7) and the second flange (8) are fixed by a screw and nut assembly (10).

5. The real-time monitoring transformer charging device according to claim 1, characterized in that: The lower end of the connecting pipe (12) is connected to a connecting pipe (11), and the lower end of the connecting pipe (11) is provided with a diaphragm pressure gauge (6). The diaphragm pressure gauge (6) is located on the side of the expansion pipe section (13) away from the inserted valve tube (15).

6. The real-time monitoring transformer charging device according to claim 1, characterized in that: A sealing ring (20) is fixedly provided at the outer ring of the insert-type valve tube (15), and a rubber sealing ring (21) is fixedly provided at one end of the connecting tube (12) close to the vent pipe (2), and the sealing ring (20) is movably fitted on the rubber sealing ring (21).

7. The real-time monitoring transformer charging device according to claim 1, characterized in that: A rubber ring (18) is fixedly provided at one end of the magnetic ring (19) away from the inserted valve tube (15), and a rounded corner is provided at the outer ring of the rubber ring (18).

8. The device for real-time monitoring of mutual inductor inflation according to claim 1, characterized in that: The grooves (28) and springs (26) are both provided in plurality, and the plurality of grooves (28) and springs (26) are distributed in a circular array along the axis of the connecting pipe (12), and the plurality of grooves (28) correspond to the plurality of springs (26) one by one.

9. The real-time monitoring transformer charging device according to claim 1, characterized in that: An electric control magnetic valve is provided at the output end of the dry air bottle (1).

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