Spraying system of transformer coil

Abstract

The invention discloses a spraying system of a transformer coil, and relates to the technical field of transformer manufacturing, the spraying system comprises a storage assembly, an oil inlet pipeline, an oil return pipeline, an oil collection box and a control assembly; the storage assembly comprises an oil tank used for storing insulating oil; the first end of the oil inlet pipeline communicates with the oil tank, and an oil spraying assembly is arranged at the second end of the oil inlet pipeline and used for spraying insulating oil to a transformer coil; wherein an oil inlet pump is arranged on the oil inlet pipeline; the first end of the oil return pipeline is communicated with the oil tank, the second end of the oil return pipeline is connected to the oil collecting box, the oil collecting box is provided with a bearing part used for bearing a transformer coil, and the oil collecting box can collect insulating oil flowing down from the transformer coil; an oil return pump is arranged on the oil return pipeline; the control assembly is used for controlling opening and closing of the oil inlet pump and the oil scavenger pump. According to the technical scheme, the transformer coil can be automatically sprayed, the working efficiency can be improved, and the labor cost can be saved.

Description

Technical Field

[0001] This invention relates to the field of transformer manufacturing technology, and in particular to a spray system for transformer coils. Background Technology

[0002] Different manufacturing processes are developed for transformer products based on their different capacities, voltage levels, and structures. Some transformer coils require oil spraying treatment during manufacturing.

[0003] Currently, the spraying of oil on transformer coils is mostly done manually, which is time-consuming and labor-intensive, resulting in low work efficiency. Summary of the Invention

[0004] In view of this, the present invention provides a spraying system for transformer coils, which can automatically spray the transformer coils, thereby improving work efficiency and saving labor costs.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A spray system for transformer coils includes: a storage component, an oil inlet pipeline, an oil return pipeline, an oil collection box, and a control component;

[0007] The storage assembly includes: an oil tank for storing insulating oil;

[0008] The first end of the oil inlet pipeline is connected to the oil tank, and the second end of the oil inlet pipeline is provided with an oil spraying assembly, which is used to spray the insulating oil onto the transformer coil; wherein, an oil pump is provided on the oil inlet pipeline;

[0009] The first end of the return oil pipeline is connected to the oil tank, and the second end of the return oil pipeline is connected to the oil collection box. The oil collection box is provided with a support part, which is used to support the transformer coil, and the oil collection box can collect the insulating oil flowing down from the transformer coil; wherein, the return oil pipeline is provided with a return oil pump.

[0010] The control component is used to control the opening and closing of the oil inlet pump and the oil return pump.

[0011] Preferably, the control component includes a first oil level sensor and a second oil level sensor, the first oil level sensor and the second oil level sensor are disposed in the oil collection box, and the first oil level sensor is located above the second oil level sensor.

[0012] The first oil level sensor generates a first electrical signal and transmits it to the control component, which controls the return oil pump to start based on the first electrical signal; the second oil level sensor generates a second electrical signal and transmits it to the control component, which controls the return oil pump to stop based on the second electrical signal.

[0013] Preferably, the oil collection box is a cavity with one open side, the supporting part is disposed on the upper surface of the bottom surface of the oil collection box, and a reinforcing plate is disposed on the lower surface of the bottom surface of the oil collection box.

[0014] Preferably, the control component is capable of receiving a third electrical signal sent by the coil drying system and controlling the oil inlet pump to start based on the third electrical signal.

[0015] Preferably, an oil inlet valve is provided on the oil inlet pipeline, and an oil outlet valve is provided on the oil return pipeline.

[0016] Preferably, the storage component further includes: an oil level observation tube; the oil level observation tube is disposed on the oil tank and is used to observe the oil level in the oil tank.

[0017] Preferably, the storage assembly further includes a breathing tube; the breathing tube is disposed at the top of the oil tank.

[0018] The oil spraying assembly includes: a spray oil ring and multiple nozzles, the multiple nozzles being arranged circumferentially along the inner ring of the spray oil ring, the oil inlet of the spray oil ring being connected to the second end of the oil inlet pipeline, and the oil outlet of the spray oil ring being connected to the nozzles; wherein, the inner ring of the spray oil ring forms a space for accommodating the transformer coil.

[0019] Preferably, the spray oil ring is fixed by a fixing assembly, and the spray oil ring is located at the top of the transformer coil;

[0020] The fixing component includes: an upper fixing member, a lower fixing member, and a connecting rod connecting the two;

[0021] The upper fixing member is fixed to the top of the drying room, and the lower fixing member is provided with the spray oil ring.

[0022] Preferably, the oil return port of the oil collection box is equipped with a filter screen, and the oil return port is connected to the oil return pipeline.

[0023] As can be seen from the above technical solution, the transformer coil spraying system provided by the present invention can automatically spray the transformer coil by utilizing the coordinated work of the storage component, oil inlet pipeline, oil return pipeline, oil collection box and control component, which is beneficial to improving work efficiency and saving labor costs. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of the spray system provided in an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the oil collection box and other parts provided in an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the oil collection box provided in an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the fixing component provided in an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the fuel injection assembly provided in an embodiment of the present invention.

[0030] The meanings of the various reference numerals in the figure are as follows:

[0031] 10 is the storage component, 11 is the oil tank, 12 is the oil level observation pipe, and 13 is the breather pipe;

[0032] 20 is the oil inlet pipe, 21 is the oil injection assembly, 211 is the spray oil ring, 212 is the nozzle, 22 is the oil inlet pump, and 23 is the oil inlet valve;

[0033] 30 is the return oil line, 31 is the return oil pump, and 32 is the outlet valve;

[0034] 40 is the oil collection box, 41 is the reinforcing plate, and 42 is the filter screen;

[0035] 50 is the control component, 51 is the first oil level sensor, and 52 is the second oil level sensor;

[0036] 60 represents the transformer coil;

[0037] 70 is the fixing component, 71 is the upper fixing part, 72 is the lower fixing part, and 73 is the connecting rod. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] The sprinkler system for transformer coils provided in this embodiment of the invention, such as Figure 1 and Figure 2 As shown, it includes: a storage component 10, an oil inlet pipe 20, an oil return pipe 30, an oil collection box 40, and a control component 50;

[0040] Storage assembly 10 includes: an oil tank 11 for storing insulating oil, which may be a synthetic hydrocarbon or ether compound;

[0041] The first end of the oil inlet pipe 20 is connected to the oil tank 11, and the second end of the oil inlet pipe 20 is provided with an oil spraying assembly 21, which is used to spray insulating oil onto the transformer coil 60; wherein, the oil inlet pipe 20 is provided with an oil pump 22.

[0042] The first end of the return oil pipeline 30 is connected to the oil tank 11, and the second end of the return oil pipeline 30 is connected to the oil collection box 40. The oil collection box 40 is provided with a support part, which is used to support the transformer coil 60, and the oil collection box 40 can collect the insulating oil flowing down from the transformer coil; wherein, the return oil pipeline 30 is provided with a return oil pump 31.

[0043] The control component 50 is used to control the opening and closing of the oil inlet pump 22 and the oil return pump 31.

[0044] In one specific embodiment, when it is necessary to spray the transformer coil 60, the transformer coil 60 is first placed in the oil collection box 40. The control component 50 controls the opening of the oil inlet pump 22, and the oil spraying component 21 continuously sprays insulating oil onto the transformer coil 60 under the action of the oil pump 22. The insulating oil seeps from the top to the bottom of the transformer coil 60, and then the excess insulating oil falls into the oil collection box 40. If it is necessary to collect the insulating oil in the oil collection box 40, the control component 50 controls the opening of the return oil pump 31. Under the action of the return oil pump 31, the insulating oil in the oil collection box 40 flows to the oil tank 11 through the return oil pipeline 30, realizing the recycling of the insulating oil. In this technical solution, by utilizing the coordinated work of the storage component 10, the oil inlet pipeline 20, the return oil pipeline 30, the oil collection box 40, and the control component 50, the transformer coil can be automatically sprayed, which is beneficial to improving work efficiency and saving labor costs.

[0045] Optimize the above technical solutions, such as Figure 3As shown, the control component includes a first oil level sensor 51 and a second oil level sensor 52. The first oil level sensor 51 and the second oil level sensor 52 are disposed in the oil collection box 40, and the first oil level sensor 51 is located above the second oil level sensor 52.

[0046] When the insulating oil in the oil collection box 40 rises to the first level, the first oil level sensor 51 generates a first electrical signal and transmits it to the control component 50. The control component 50 controls the return oil pump 31 to start based on the first electrical signal. When the insulating oil in the oil collection box 40 drops to the second level, the second oil level sensor 52 generates a second electrical signal and transmits it to the control component 50. The control component 50 controls the return oil pump 31 to shut down based on the second electrical signal. In a specific embodiment, the first oil level sensor 51 is arranged 50 mm away from the upper surface of the oil collection box 40, and the second oil level sensor 52 is arranged at the bottom of the oil collection box 40 (to prevent the return oil pump 22 from being damaged due to no-load operation).

[0047] In the above technical solution, if the control component 50 receives a first electrical signal indicating that the oil collection box 40 has collected a large amount of insulating oil that needs to be discharged, then the control component 50 needs to control the return oil pump 31 to start. If the control component 50 receives a second electrical signal indicating that the oil collection box 40 has less insulating oil, then the control component 50 needs to control the return oil pump 31 to stop. In a specific embodiment, the control component 50 may include a main control module (such as an MCU or PLC) and a drive output module (contactor or relay). After receiving the electrical signal, the main control module generates a control command through logical operations. This command is amplified by the drive unit and acts on the relay coil to drive the relay contacts to open and close. By controlling the opening and closing of the pump power supply main circuit through the relay contacts, the main control module indirectly regulates the pump's operating status.

[0048] Further optimize the above technical solutions, such as Figure 3 As shown, the oil collecting box 40 is a cavity with one open side. The supporting part is set on the upper surface of the bottom of the oil collecting box 40 so as to better collect excess insulating oil on the transformer coil 60. The lower surface of the bottom of the oil collecting box 40 is provided with a reinforcing plate 41. Specifically, there are multiple reinforcing plates 41, which are arranged at intervals to improve the stability of the overall structure of the oil collecting box 40.

[0049] In one alternative technical solution, it should be noted that before spraying insulating oil onto the transformer coil 60, in order to ensure insulation performance and improve spray adhesion, the transformer coil 60 needs to be dried using a coil drying system. After the coil drying system finishes drying the transformer coil 60, the control component 50 can receive a third electrical signal sent by the coil drying system and control the oil inlet pump 22 to start based on the third electrical signal, so as to use the power provided by the oil inlet pump 22 to spray the transformer coil 60 using the oil spraying component 21.

[0050] In one of the alternative technical solutions, such as Figure 1 As shown, an inlet valve 23 is installed on the oil inlet pipeline 20 to control the opening and closing of the oil inlet pipeline 20. An outlet valve 32 is installed on the return oil pipeline 30 to control the opening and closing of the return oil pipeline 30. Preferably, the oil inlet valve 23 can be a manual gate valve or a solenoid valve, and the oil outlet valve 32 can be a manual gate valve or a solenoid valve. If both the oil inlet valve 23 and the oil outlet valve 32 are solenoid valves, the control component 50 can control the opening and closing of the oil inlet valve 23 and the oil outlet valve 32.

[0051] In one of the alternative technical solutions, such as Figure 1 As shown, the storage component 10 also includes an oil level observation tube 12; the oil level observation tube 12 is disposed on the oil tank 11 and is used to observe the oil level in the oil tank 11, so that the oil level in the oil tank 11 can be observed at any time and insulating oil can be added to the oil tank 11.

[0052] Optimize the above technical solutions, such as Figure 1 As shown, the storage component 10 also includes a breathing tube 13; the breathing tube 13 is located on the top of the oil tank 11, and the breathing tube 13 can balance the air pressure inside and outside the oil tank and ensure the safety of the oil tank.

[0053] In one of the alternative technical solutions, such as Figure 5 As shown, the oil spraying assembly 21 includes: a spray oil ring 211 and a plurality of nozzles 212. The plurality of nozzles 212 are arranged circumferentially along the inner ring of the spray oil ring 211. The oil inlet of the spray oil ring 211 is connected to the second end of the oil inlet pipe 20, and the oil outlet of the spray oil ring 211 is connected to the nozzles 212. The inner ring of the spray oil ring 211 forms a space for accommodating the transformer coil 60.

[0054] In the above technical solution, the transformer coil 60 is located on the inner ring of the spray oil ring 211, and the nozzle 212 on the inner ring sprays insulating oil circumferentially onto the transformer coil 60. Preferably, the connection between the nozzle 212 and the spray oil ring 211 is a rotatable connection, and the nozzle 212 is universal and telescopic, which can adjust the spray angle onto the transformer coil 60 according to the actual situation to ensure that coils of different sizes can be sprayed with insulating oil.

[0055] In one of the alternative technical solutions, such as Figure 4 As shown, the spray oil ring 211 is fixed by the fixing assembly 70, and the spray oil ring 211 is located on top of the transformer coil 60;

[0056] The fixing component 70 includes: an upper fixing member 71, a lower fixing member 72, and a connecting rod 73 connecting the two;

[0057] The upper fixing part 71 is fixed to the top of the drying room, and the lower fixing part 72 is equipped with a spray oil ring 211.

[0058] In the above technical solution, it can be understood that the spray oil ring 211 is fixed inside the drying chamber by the fixing component 70, and then the transformer coil 60 located in the drying chamber is sprayed. In another specific embodiment, the fixing component 70 is disposed on the oil collection box 40, the lower fixing member 72 is fixed on the oil collection box 40, the connecting rod 73 is arranged vertically, and the upper fixing member 71 is provided with the spray oil ring 211 to spray the transformer coil 60. In a specific embodiment, the connecting rod 73 is a connecting screw, and the connecting screw and nut cooperate to connect the upper fixing member 71 and the lower fixing member 72.

[0059] In one optional technical solution, the oil return port of the oil collection box 40 is equipped with a filter screen 42, and the oil return port is connected to the oil return pipeline 30. The filter screen 42 is used to filter the insulating oil flowing from the oil collection box 40 to the oil return pipeline 30, so as to prevent impurities in the collected insulating oil from clogging the oil return pipeline.

[0060] In one optional technical solution, the oil inlet pipeline 20 includes a first metal rigid pipe (passing through the drying chamber wall - used for connection between the inner and outer pipelines of the drying chamber), a first metal flexible pipe, a second metal rigid pipe, and a second metal flexible pipe connected in sequence, wherein one end of the first metal rigid pipe is connected to the oil inlet pump 22, and one end of the second metal flexible pipe is connected to the oil injection assembly 21.

[0061] In one optional technical solution, the return oil line 30 includes a third metal rigid pipe and a third metal flexible pipe connected in sequence, wherein one end of the third metal rigid pipe is connected to the return oil pump 31, and one end of the third metal flexible pipe is connected to the oil collection box 40.

[0062] In an alternative technical solution, the storage component 10 and the control component 50 are located outside the drying chamber, while the oil collection box 40 is located inside the drying chamber. Alternatively, the oil collection box 40 can be pulled out of the drying chamber using a mobile vehicle, such as a flatbed truck.

[0063] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0064] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A spray system for a transformer coil, characterized in that, include: Storage component (10), oil inlet line (20), oil return line (30), oil collection box (40) and control component (50); The storage assembly (10) includes: an oil tank (11) for storing insulating oil; The first end of the oil inlet pipe (20) is connected to the oil tank (11), and the second end of the oil inlet pipe (20) is provided with an oil spraying assembly (21). The oil spraying assembly (21) is used to spray the insulating oil onto the transformer coil (60). The oil inlet pipe (20) is provided with an oil pump (22). The first end of the return oil pipeline (30) is connected to the oil tank (11), and the second end of the return oil pipeline (30) is connected to the oil collection box (40). The oil collection box (40) is provided with a support part, which is used to support the transformer coil (60), and the oil collection box (40) can collect the insulating oil flowing down from the transformer coil; wherein, the return oil pipeline (30) is provided with a return oil pump (31). The control component (50) is used to control the opening and closing of the oil inlet pump (22) and the oil return pump (31).

2. The spray system for transformer coils according to claim 1, characterized in that, The control component includes a first oil level sensor (51) and a second oil level sensor (52), which are disposed in the oil collection box (40), with the first oil level sensor (51) located above the second oil level sensor (52). The first oil level sensor (51) generates a first electrical signal and transmits it to the control component (50), and the control component (50) controls the return oil pump (31) to start based on the first electrical signal; the second oil level sensor (52) generates a second electrical signal and transmits it to the control component (50), and the control component (50) controls the return oil pump (31) to stop based on the second electrical signal.

3. The spray system for transformer coils according to claim 2, characterized in that, The oil collection box (40) is a cavity with one open side. The supporting part is provided on the upper surface of the bottom surface of the oil collection box (40), and a reinforcing plate (41) is provided on the lower surface of the bottom surface of the oil collection box (40).

4. The spray system for transformer coils according to claim 1, characterized in that, The control component (50) is able to receive a third electrical signal sent by the coil drying system and control the oil inlet pump (22) to start based on the third electrical signal.

5. The spray system for transformer coils according to claim 1, characterized in that, An oil inlet valve (23) is provided on the oil inlet pipeline (20), and an oil outlet valve (32) is provided on the oil return pipeline (30).

6. The spray system for transformer coils according to claim 1, characterized in that, The storage component (10) further includes an oil level observation tube (12); the oil level observation tube (12) is disposed on the oil tank (11) and is used to observe the oil level in the oil tank (11).

7. The spray system for transformer coils according to claim 6, characterized in that, The storage assembly (10) further includes a breathing tube (13); the breathing tube (13) is disposed on the top of the oil tank (11).

8. The spray system for transformer coils according to claim 1, characterized in that, The oil spraying assembly (21) includes: a spray oil ring (211) and a plurality of nozzles (212), the plurality of nozzles (212) being arranged circumferentially along the inner ring of the spray oil ring (211), the oil inlet of the spray oil ring (211) being connected to the second end of the oil inlet pipe (20), and the oil outlet of the spray oil ring (211) being connected to the nozzles (212); wherein, the inner ring of the spray oil ring (211) forms a space for accommodating the transformer coil (60).

9. The spray system for transformer coils according to claim 8, characterized in that, The spray oil ring (211) is fixed by a fixing assembly (70), and the spray oil ring (211) is located on top of the transformer coil (60); The fixing component (70) includes: an upper fixing member (71), a lower fixing member (72), and a connecting rod (73) connecting the two. The upper fixing member (71) is fixed on the top of the drying room, and the lower fixing member (72) is provided with the spray oil ring (211).

10. The spray system for transformer coils according to any one of claims 1-9, characterized in that, The oil return port of the oil collection box (40) is equipped with a filter screen (42), and the oil return port is connected to the oil return pipeline (30).

Images