Transformer oil tank sealing monitoring device

Abstract

The utility model relates to the technical field of transformer state monitoring, in particular to a transformer oil tank sealing monitoring device which comprises a hollow pipe, a connecting flange is fixedly arranged on one side of the hollow pipe, a pressure gauge is arranged on the side, away from the connecting flange, of the hollow pipe, a plurality of threaded holes are formed in the connecting flange, and the threaded holes are communicated with the connecting flange. A threaded hole is formed in one side of the connecting flange, a screw rod is arranged in the threaded hole, a screw head is fixedly arranged on one side of the screw rod, a first gear ring is fixedly arranged on the screw head, a rotating disc is arranged between the connecting flange and the pressure gauge, a gas conveying pipe is fixedly arranged on one side of the hollow pipe, and a switch valve is arranged on the gas conveying pipe. All the screws can be rotated by rotating the rotating disc, workers do not need to rotate the screws one by one in the process of fixing the connecting flange and the oil tank, the workers can fix the connecting flange and the oil tank conveniently, the sharing of the workers is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer status monitoring, in particular to a transformer oil tank sealing monitoring device. Background Art

[0002] The transformer tank is an important component of the oil-immersed transformer. Its function is not only to contain the transformer oil, but also to cool and protect the coils and core inside the transformer. The design and manufacture of the transformer tank need to consider many aspects to ensure its functionality and durability. The correct design and maintenance of the transformer tank is crucial to the stable operation of the transformer. Therefore, the transformer tank needs to be monitored for its sealing through a sealing monitoring device.

[0003] As disclosed in a Chinese patent: A transformer oil tank sealing monitoring device, method and electronic equipment, application number: CN202310040249.4, includes calculating the temperature difference ΔT based on the ambient temperature and transformer oil temperature collected by the temperature sensor; when ΔT is greater than the set temperature rise threshold, the main control board outputs an "abnormal temperature rise" alarm; when ΔT is less than the set temperature rise threshold, the real-time height of the top oil level of the transformer collected by the optical ranging sensor is compared with the initial height before the transformer is put into operation or leaves the factory, and the height difference ΔH is calculated, and the ratio is made with the recorded time Δt to calculate the oil level transformation rate S = ΔH / Δt; the oil level is judged to be abnormal by comparing the value of ΔH with the set judgment threshold; and the existence of leakage is judged by comparing the value of S with the set judgment threshold. The present invention evaluates the sealing status of the transformer to increase the sealing monitoring means of the oil-immersed transformer, thereby improving the operating reliability of the transformer.

[0004] However, in the above technical solution, in the process of monitoring the sealing of the transformer oil tank by using the sealing monitoring device, in order to ensure the stability of the monitoring device, it is usually necessary to firmly fix the sealing monitoring device on the transformer oil tank through the flange as a connecting piece. The flange cooperates with the screws through the screw holes thereon to achieve a tight connection between the devices. However, since there are usually several screws distributed on the flange, the staff needs to rotate these screws one by one to ensure that the flange can fit tightly on the transformer oil tank. This process is time-consuming and labor-intensive, and can easily lead to physical fatigue of the staff, increase the staff's burden, and reduce work efficiency. Utility Model Content

[0005] The main purpose of the present utility model is to provide a transformer oil tank sealing monitoring device, which can effectively solve the problem in the background technology that in the process of using the sealing monitoring device to monitor the sealing of the transformer oil tank, in order to ensure the stability of the monitoring device, it is usually necessary to firmly fix the sealing monitoring device on the transformer oil tank through a flange as a connecting piece, and the flange cooperates with the screws through the screw holes thereon to achieve a tight connection between the devices. However, since there are usually several screws distributed on the flange, the staff needs to rotate these screws one by one to ensure that the flange can fit tightly on the transformer oil tank. This process is time-consuming and labor-intensive, easily leads to physical fatigue of the staff, increases the staff's burden, and reduces work efficiency.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A transformer oil tank sealing monitoring device includes a hollow tube, a connecting flange is fixedly provided on one side of the hollow tube, a pressure gauge is provided on the side of the hollow tube away from the connecting flange, a plurality of threaded holes are provided on the connecting flange, a screw is provided in the threaded hole, a screw head is fixedly provided on one side of the screw, a first gear ring is fixedly provided on the screw head, a rotating disk is provided between the connecting flange and the pressure gauge, a gas pipe is fixedly provided on one side of the hollow tube, and a switch valve is provided on the gas pipe.

[0008] Preferably, the rotating disk includes a rotating disk body, a groove is provided on a side of the rotating disk body close to the connecting flange, a second gear ring is fixedly provided in the groove, and a plurality of balls are provided on the inner wall of the groove away from the connecting flange.

[0009] Preferably, a through groove is provided on the rotating disk body.

[0010] Preferably, a plurality of handles are fixedly provided on the outer wall of the rotating disk body.

[0011] Preferably, the second gear ring is meshed with the first gear ring.

[0012] Preferably, the hollow tube movably passes through the through slot.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) When the utility model is used, the hollow tube and the connecting flange are first placed at the designated position of the oil tank, and then a certain pressure is applied to the rotating disk body through the handle. At the same time, the rotating disk body is rotated with the hollow tube as the center through the handle. The rotating disk body drives all the first gear rings to rotate through the second gear ring, and the first gear ring drives the screw head to rotate, and the screw head drives the screw to rotate, so that all the screws are rotated to fix the connecting flange to the oil tank. All the screws can be rotated by rotating the rotating disk. There is no need for the staff to rotate the screws one by one during the process of fixing the connecting flange to the oil tank, which makes it convenient for the staff to fix the connecting flange to the oil tank, reduces the burden on the staff, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a transformer oil tank sealing monitoring device according to the present utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of a transformer oil tank sealing monitoring device of the utility model;

[0017] Figure 3 The utility model is a schematic structural diagram of a rotating disk in a transformer oil tank sealing monitoring device.

[0018] In the figure: 1. Hollow tube; 2. Connecting flange; 3. Pressure gauge; 4. Threaded hole; 5. Screw; 6. Screw head; 7. First gear ring; 8. Rotating disk; 801. Rotating disk body; 802. Groove; 803. Second gear ring; 804. Ball; 805. Through groove; 806. Handle; 9. Gas pipe; 10. Switch valve. DETAILED DESCRIPTION

[0019] The following will be combined with 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.

[0020] like Figure 1 and Figure 2As shown, a transformer oil tank sealing monitoring device includes a hollow tube 1, a connecting flange 2 is fixedly provided on one side of the hollow tube 1, a pressure gauge 3 is provided on the side of the hollow tube 1 away from the connecting flange 2, a plurality of threaded holes 4 are provided on the connecting flange 2, a screw 5 is provided in the threaded hole 4, a screw head 6 is fixedly provided on one side of the screw 5, a first gear ring 7 is fixedly provided on the screw head 6, a rotating disk 8 is provided between the connecting flange 2 and the pressure gauge 3, an air supply pipe 9 is fixedly provided on one side of the hollow tube 1, and a switch valve 10 is provided on the air supply pipe 9.

[0021] like Figure 3 As shown, in another embodiment of the present invention, the rotating disk 8 includes a rotating disk body 801, a groove 802 is provided on a side of the rotating disk body 801 close to the connecting flange 2, a second gear ring 803 is fixedly provided in the groove 802, and a plurality of balls 804 are provided on the inner wall of the groove 802 away from the connecting flange 2;

[0022] The rotating disk body 801 is provided with a through slot 805;

[0023] The outer wall of the rotating disk body 801 is fixedly provided with several handles 806. When all the screws 5 need to be rotated, first hold the handle 806, and then apply a certain pressure to the rotating disk body 801 through the handle 806. The rotating disk body 801 applies a certain pressure to the screw head 6 through the ball 804. At the same time, the rotating disk body 801 is rotated with the hollow tube 1 as the center through the handle 806. The rotating disk body 801 drives the second gear ring 803 to rotate, and the second gear ring 803 drives all the first gear rings 7 to rotate. The first gear ring 7 drives the screw head 6 to rotate. At the same time, the friction between the screw head 6 and the rotating disk body 801 is reduced through the ball 804. The screw head 6 drives the screw 5 to rotate, thereby rotating all the screws 5.

[0024] The working principle of a transformer oil tank sealing monitoring device:

[0025] When in use, first place the hollow tube 1 and the connecting flange 2 at the designated position of the oil tank, then apply a certain amount of pressure to the rotating disk body 801 through the handle 806, and the rotating disk body 801 applies a certain amount of pressure to the screw head 6 through the ball 804. At the same time, the rotating disk body 801 is rotated around the hollow tube 1 through the handle 806, and the rotating disk body 801 drives the second gear ring 803 to rotate, and the second gear ring 803 drives all the first gear rings 7 to rotate, and the first gear ring 7 drives the screw head 6 to rotate, and at the same time, the friction between the screw head 6 and the rotating disk body 801 is reduced by the ball 804. The screw head 6 drives the screw rod 5 to rotate, thereby causing all the screw rods 5 to rotate, fixing the connecting flange 2 to the oil tank, and then opening the switch valve 10, and then injecting compressed air into the hollow tube 1 through the air pipe 9, and then closing the switch valve 10, and then monitoring the sealing of the transformer oil tank by observing the index on the pressure gauge 3. By rotating the rotating disk 8, all the screw rods 5 can be rotated, and the staff does not need to rotate the screw rods 5 one by one during the process of fixing the connecting flange 2 to the oil tank, which is convenient for the staff to fix the connecting flange 2 to the oil tank, reduces the staff's burden, and improves work efficiency.

[0026] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. Any obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A transformer tank sealing monitoring device, comprising a hollow tube (1), characterized in that: A connecting flange (2) is fixedly provided on one side of the hollow tube (1), a pressure gauge (3) is provided on the side of the hollow tube (1) away from the connecting flange (2), a plurality of threaded holes (4) are provided on the connecting flange (2), a screw (5) is provided in the threaded hole (4), a screw head (6) is fixedly provided on one side of the screw (5), a first gear ring (7) is fixedly provided on the screw head (6), a rotating disk (8) is provided between the connecting flange (2) and the pressure gauge (3), an air supply pipe (9) is fixedly provided on one side of the hollow tube (1), and an on-off valve (10) is provided on the air supply pipe (9); The rotating disk (8) comprises a rotating disk body (801), a groove (802) is provided on a side of the rotating disk body (801) close to the connecting flange (2), a second gear ring (803) is fixedly provided in the groove (802), and a plurality of balls (804) are provided on the inner wall of the side of the groove (802) away from the connecting flange (2); A plurality of handles (806) are fixedly provided on the outer wall of the rotating disk body (801); The second gear ring (803) and the first gear ring (7) are meshed with each other.

2. A transformer oil tank sealing monitoring device according to claim 1, characterized in that: A through slot (805) is provided on the rotating disk body (801).

3. A transformer oil tank sealing monitoring device according to claim 2, characterized in that: The hollow tube (1) movably passes through the through slot (805).

Images