High-safety transformer

Abstract

The invention relates to the technical field of transformers, in particular to a high-safety transformer which comprises a transformer body and a monitoring mechanism, and the monitoring mechanism comprises a processor, a base, a control core, a driving wheel and a visual assembly. The base is provided with a containing cavity, an input flow channel and an output flow channel, the input flow channel and the output flow channel extend to the containing cavity, and the other ends of the input flow channel and the output flow channel communicate with an oil tank. A filtering assembly is arranged in the output flow channel, and the visual assembly is embedded in the inner wall of the output flow channel. The control core is rotationally matched with the containing cavity and provided with a radial through hole, and a control rod is arranged in the radial through hole in a sliding fit mode. The driving wheel is rotatably matched with the base. One end of the control rod is eccentrically hinged to the driving wheel. The visual component is used for acquiring image data of the surface of the filter component, and the processor is used for evaluating the impurity content in the insulating oil according to the impurity quality of the surface of the filter component. According to the utility model, the automatic monitoring of the insulating oil can be realized in the operation process, prompts can be given out in time, and the safety supervision strength is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and in particular to a high-safety transformer. Background Art

[0002] In transformers, insulating oil plays the roles of insulation protection, heat dissipation and cooling, arc extinguishing protection, and material protection. In order to ensure the normal operation of the transformer, the insulating oil of the transformer needs to be inspected and replaced regularly.

[0003] The changes in the properties of insulating oil and the speed of their changes are directly related to the operational safety and stability of the transformer. Therefore, the changes in the insulating oil and the speed of their changes also reflect the aging of the transformer's internal components.

[0004] Currently, transformer insulating oil testing is performed manually. Operators are required to regularly sample the transformer's insulating oil for testing and record changes in its properties. This work is labor-intensive and labor-intensive.

[0005] In addition, when evaluating the aging of transformers by the changes in the properties and speed of the insulating oil, it is necessary to strictly sample and analyze the insulating oil on time. Since there are often a large number of transformers and the power system often has a shortage of power operators during high-load power supply seasons, it is easy to fail to timely sample the insulating oil of the transformers that need to be monitored.

[0006] In view of this, this application is hereby filed. Summary of the Invention

[0007] The purpose of the present invention is to provide a high-safety transformer that can realize autonomous monitoring of insulating oil during operation, and to a certain extent play an auxiliary supervision role. When changes in the insulating oil quality are found, prompts can be issued in time, which effectively improves the safety supervision and saves manpower.

[0008] The embodiment of the present invention is achieved as follows: A high-safety transformer comprises a transformer body and a monitoring mechanism.

[0009] The monitoring mechanism includes: a processor, a base, a control core, a driving wheel and a visual component.

[0010] The base is provided with a cylindrical accommodating cavity, an input flow channel and an output flow channel, one end of each of the input flow channel and the output flow channel extends to the inner wall of the accommodating cavity, and the other end of each of the input flow channel and the output flow channel is connected to the oil tank of the transformer body.

[0011] The input flow channel and the output flow channel are spaced apart along the circumference of the accommodating cavity. A filter assembly is arranged in the output flow channel, and the visual assembly is embedded in the inner wall of the output flow channel and arranged toward the filter assembly.

[0012] The control core is cylindrical and rotatably fits into the accommodating cavity, with the outer wall of the control core abutting against the inner wall of the accommodating cavity and forming a rotational seal. The control core has a radial through hole, in which a control rod is slidably fitted, and a sliding seal is formed between the control rod and the inner wall of the radial through hole.

[0013] The driving wheel is rotatably matched with the base and driven by the driver. One end of the control rod is eccentrically hinged to the side surface of the driving wheel.

[0014] The drive wheel has a first rotational state, a second rotational state, a third rotational state, and a fourth rotational state.

[0015] When the driving wheel is in the first rotation state, the length of the control rod extending into the radial through hole reaches the maximum. The radial through hole is located in the area between the input flow channel and the output flow channel, and the radial through hole is closed by the inner side wall of the accommodating cavity.

[0016] When the driving wheel is in the second rotation state, the radial through hole is communicated with the input flow channel, and the control rod continues to move outward from the radial through hole, and the insulating oil in the input flow channel is sucked into the radial through hole.

[0017] When the driving wheel is in the third rotation state, the length of the control rod extending into the radial through hole reaches the minimum. The radial through hole is located in the area between the input flow channel and the output flow channel, and the radial through hole is closed by the inner side wall of the accommodating cavity.

[0018] When the driving wheel is in the fourth rotation state, the radial through hole is communicated with the output flow channel, and the control rod continues to move into the radial through hole, and the insulating oil in the radial through hole is pushed into the output flow channel.

[0019] The vision component is used to acquire image data of the filter assembly surface, and the processor is used to assess the impurity content in the insulating oil based on the amount of impurities on the filter assembly surface. When the impurity content exceeds the threshold, the processor issues a prompt.

[0020] Furthermore, the monitoring mechanism also includes: a collector.

[0021] The collector is cylindrical. An input cavity and an output cavity are defined at one end of the collector. Both the input and output cavities extend axially along the collector and are spaced apart. The bottom ends of the input and output cavities are connected, forming a collection chamber for collecting insulating oil. Multiple collection cavities are evenly spaced along the circumference of the collector.

[0022] The collector is rotatably coupled to the base, with the collector's rotational axis coinciding with its central axis. One end face of the collector is in contact with the surface of the base, and a rotational seal is formed between the end face of the collector and the surface of the base, so that the base seals the openings of both the input cavity and the output cavity.

[0023] The driving wheel is in transmission cooperation with the collector through an incomplete gear intermittent mechanism, so that the collector can rotate a preset angle after the driving wheel rotates a preset number of times.

[0024] The output flow channel includes a first flow channel section and a second flow channel section. The filter component and the visual component are both arranged in the second flow channel section.

[0025] The first flow channel section is connected to the accommodating chamber, and the outlet end of the second flow channel section is connected to the fuel tank. Both the end of the first flow channel section remote from the accommodating chamber and the end of the second flow channel section remote from the fuel tank extend to the surface of the base that mates with the collector, enabling the first flow channel section to communicate with the input chamber of one collection chamber, and the second flow channel section to communicate with the output chamber of that collection chamber. Whenever the collector rotates through a predetermined angle, the first and second flow channel sections connect to the next collection chamber.

[0026] Furthermore, an oil hole communicating with the input cavity or the output cavity is formed on an end surface of the collector away from the base, and the oil hole is detachably equipped with a sealing member for sealing the oil hole.

[0027] Furthermore, a screw is fixedly connected to a side of the blocking member away from the collector. The screw is arranged along the axial direction of the collector. The screw thread is matched with a matching sleeve, and the matching sleeve has an outer gear ring.

[0028] The base is also equipped with a transmission gear that mates with the drive wheel. The gear meshes with the mating sleeve corresponding to the collection chamber currently connected to the output channel. Whenever the collector rotates a preset angle, the gear meshes with the mating sleeve corresponding to the next collection chamber.

[0029] Before the collection chamber is connected to the output channel, the matching sleeve is located at one end of the screw. When the collection chamber is connected to the output channel, the matching sleeve corresponding to the collection chamber meshes with the transmission gear and is driven by the transmission gear, causing the matching sleeve to move toward the other end of the screw and separate from the transmission gear.

[0030] Furthermore, the inlet end of the input flow channel is located at the bottom of the oil tank, and the outlet end of the output flow channel extends toward the top of the oil tank.

[0031] Furthermore, the visual component is configured with a light source.

[0032] Furthermore, the processor is further configured to evaluate the condition of the insulating oil based on the color of the insulating oil.

[0033] When the insulating oil is slightly transparent and light yellow, the processor indicates that the insulating oil is normal. When the insulating oil is light red, the processor indicates that the insulating oil quality is beginning to deteriorate. When the insulating oil is brown, tan, or black, the processor indicates that the insulating oil is severely deteriorated. When the insulating oil is green, the processor indicates that the insulating oil color has changed abnormally.

[0034] Furthermore, a mounting groove is provided on a side wall of the accommodating cavity away from the input flow channel and the output flow channel, and the driving wheel is installed in the mounting groove.

[0035] Furthermore, the output flow channel has an expanded diameter section, and the filter assembly is arranged in the expanded diameter section.

[0036] Furthermore, the visual component is embedded in an end wall of the expanded diameter section close to the accommodating cavity.

[0037] The beneficial effects of the technical solutions of the embodiments of the present invention include: The control core and control rod of the high-safety transformer provided by the present invention work together to continuously feed insulating oil from the input flow channel into the output flow channel. The insulating oil entering the output flow channel is filtered by the filter assembly and then returned to the oil tank. This allows for continuous filtering of the insulating oil in the transformer, reducing the amount of particulate impurities in the insulating oil and improving the transformer's operational stability.

[0038] The vision component captures image data from the filter surface, and the processor assesses the impurity content in the insulating oil based on the change in the amount of particulate matter filtered out of the filter surface per unit time. If the impurity level exceeds a threshold, the processor alerts the operator, allowing them to take targeted action to ensure safe transformer operation.

[0039] Among them, the corresponding relationship between the change in the amount of particulate impurities filtered out from the surface of the filter assembly per unit time and the impurity content in the insulating oil can be preset in advance according to actual needs, and this application does not impose specific restrictions.

[0040] It should be noted that the speed of the drive wheel and the amount of insulating oil delivered to the output channel by the control core and control rod can be flexibly selected based on actual needs. When the speed of the drive wheel and the amount of insulating oil delivered to the output channel by the control core and control rod are both set to a relatively high value, the monitoring mechanism can effectively perform both the filtering and particulate matter monitoring functions. When the speed of the drive wheel and the amount of insulating oil delivered to the output channel by the control core and control rod are both set to a relatively low value, the monitoring mechanism primarily performs the particulate matter monitoring function.

[0041] In general, the high-safety transformer provided by the embodiment of the present invention can realize autonomous monitoring of the insulating oil during operation, and to a certain extent plays an auxiliary regulatory role. When changes in the insulating oil quality are found, prompts can be issued in a timely manner, which effectively improves safety supervision and saves manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0043] Figure 1 A schematic diagram of the overall structure of a high-safety transformer provided by an embodiment of the present invention; Figure 2 Schematic diagram of the structure of the monitoring mechanism (when the driving wheel is in the first rotation state); Figure 3 Schematic diagram of the structure of the monitoring mechanism (when the driving wheel is in the second rotation state); Figure 4 Schematic diagram of the structure of the monitoring mechanism (when the driving wheel is in the third rotation state); Figure 5 Schematic diagram of the structure of the monitoring mechanism (when the driving wheel is in the fourth rotation state); Figure 6 It is a side structural diagram of the monitoring mechanism; Figure 7 Schematic diagram of the back structure of the base; Figure 8 This is a schematic diagram of the structure of the end face of the collector close to the base; Figure 9 Schematic diagram of the internal structure of the collector; Figure 10 This is a schematic diagram of the structure of the end face of the collector away from the base; Figure 11 This is a schematic diagram of the matching sleeve being driven to the other end of the screw by the transmission gear.

[0044] Description of reference numerals: Transformer body 100; monitoring mechanism 200; base 300; accommodating chamber 310; input flow channel 320; output flow channel 330; first flow channel section 331; second flow channel section 332; expanded diameter section 333; filter assembly 340; mounting groove 350; transmission gear 360; control core 400; radial through hole 410; control rod 420; drive wheel 500; visual assembly 600; collector 700; input chamber 710; output chamber 720; collection chamber 730; blocking member 740; screw 741; mating sleeve 742. DETAILED DESCRIPTION

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0047] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0048] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0049] Furthermore, the terms "parallel" and "perpendicular" do not necessarily mean that the components must be absolutely parallel or perpendicular, but rather that they can be slightly tilted. For example, "parallel" simply means that the direction is more parallel than "perpendicular," not that the structure must be completely parallel, but rather that it can be slightly tilted.

[0050] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0051] In order to overcome the shortcomings of the existing technology, please refer to Figure 1 and Figure 2 This embodiment provides a high-safety transformer, which includes: a transformer body 100 and a monitoring mechanism 200.

[0052] The monitoring mechanism 200 includes: a processor (not shown in the figure), a base 300 , a control core 400 , a driving wheel 500 and a visual component 600 .

[0053] The base 300 defines a receiving cavity 310 , which is cylindrical.

[0054] The base 300 defines an input flow channel 320 and an output flow channel 330. Both the input flow channel 320 and the output flow channel 330 are located within the base 300. One end of each of the input flow channel 320 and the output flow channel 330 extends to the inner wall of the accommodating cavity 310, thereby communicating with the accommodating cavity 310. The other ends of each of the input flow channel 320 and the output flow channel 330 extend through the surface of the base 300. The input flow channel 320 and the output flow channel 330 are further connected to the oil tank of the transformer body 100 via a connecting pipe (not shown).

[0055] Along the circumference of the accommodating chamber 310, the opening of the input flow channel 320 and the opening of the output flow channel 330 are spaced apart. A filter assembly 340 is disposed within the output flow channel 330 to filter particulate impurities in the insulating oil. Filter assembly 340 can be a filter plate.

[0056] The visual component 600 is embedded in the inner wall of the output flow channel 330 and is disposed toward the filter component 340. Specifically, the visual component 600 is disposed toward the side of the filter component 340 where the particle impurities are located, so as to obtain the specific situation of the particle impurities on the filter component 340.

[0057] The control core 400 is cylindrical and rotatably fits into the accommodating cavity 310. The outer wall of the control core 400 is in contact with the inner wall of the accommodating cavity 310 and forms a rotational seal. The rotation axis of the control core 400 is coincident with its central axis.

[0058] The control core 400 is provided with a radial through hole 410 , in which a control rod 420 is slidably fitted. The diameter of the control rod 420 matches the aperture of the radial through hole 410 , and the control rod 420 is in contact with and slidably sealed against the inner wall of the radial through hole 410 .

[0059] The driving wheel 500 is rotatably coupled to the base 300 and is driven by a driver (not shown). One end of the control rod 420 is eccentrically hinged to a side surface of the driving wheel 500 .

[0060] In this embodiment, a mounting groove 350 is formed on a side wall of the accommodating chamber 310 away from the input flow channel 320 and the output flow channel 330, and the driving wheel 500 is mounted in the mounting groove 350. The rotation axis of the driving wheel 500 is parallel to the rotation axis of the control core 400.

[0061] The connecting pipe connected to the input flow channel 320 is connected to the bottom of the fuel tank, and the connecting pipe connected to the output flow channel 330 extends toward the top of the fuel tank. In other words, the inlet end of the input flow channel 320 is located at the bottom of the fuel tank, and the outlet end of the output flow channel 330 extends toward the top of the fuel tank.

[0062] In order to facilitate observation of the image at the filter assembly 340 , the vision assembly 600 is configured with a light source.

[0063] In this embodiment, the distance between the input flow channel 320 and the output flow channel 330 at the inner wall of the accommodating cavity 310 is the same as the aperture of the radial through hole 410 .

[0064] The driving wheel 500 is in the process of unidirectional rotation (such as Figure 2-Figure 5 ), under the action of the control rod 420, the control core 400 will rotate back and forth.

[0065] The driving wheel 500 has a first rotation state, a second rotation state, a third rotation state and a fourth rotation state.

[0066] When the driving wheel 500 is in the first rotation state, the length of the control rod 420 extending into the radial through hole 410 reaches the maximum. At this time, the hinge end of the control rod 420 is closest to the control core 400. Figure 2 In this state, the radial through hole 410 is located between the input flow channel 320 and the output flow channel 330, and the radial through hole 410 is closed by the inner wall of the accommodating chamber 310. In other words, the radial through hole 410 is not connected to the input flow channel 320, nor is it connected to the output flow channel 330.

[0067] When the driving wheel 500 leaves the first rotation state, it enters the second rotation state.

[0068] When the driving wheel 500 enters the second rotation state, the radial through hole 410 is connected to the input channel 320, and the control rod 420 continues to move outward from the radial through hole 410, and the insulating oil in the input channel 320 is sucked into the radial through hole 410. Figure 3 During this process, the hinged end of the control rod 420 gradually moves away from the control core 400.

[0069] After the driving wheel 500 rotates in the second rotation state for a period of time, the driving wheel 500 enters the third rotation state.

[0070] When the driving wheel 500 is in the third rotation state, the length of the control rod 420 extending into the radial through hole 410 reaches the minimum. Figure 4 As shown, the radial through hole 410 is located in the area between the input flow channel 320 and the output flow channel 330, and the radial through hole 410 is closed by the inner wall of the accommodating cavity 310. In this state, the radial through hole 410 is just not connected to the input flow channel 320, and is also just not connected to the output flow channel 330.

[0071] When the driving wheel 500 continues to rotate and leaves the third rotation state, it enters the fourth rotation state.

[0072] When the driving wheel 500 enters the fourth rotation state, the radial through hole 410 is connected to the output flow channel 330. Figure 5 As shown, the control rod 420 continues to move into the radial through hole 410, and the insulating oil in the radial through hole 410 is pushed into the output flow channel 330. During this process, the hinged end of the control rod 420 gradually approaches the control core 400.

[0073] It should be noted that the first rotation state and the third rotation state of the driving wheel 500 are both instantaneous states. After the driving wheel 500 leaves the first rotation state and before entering the third rotation state, it is in the second rotation state. After the driving wheel 500 leaves the third rotation state and before entering the first rotation state, it is in the fourth rotation state.

[0074] With this design, the control core 400 and control rod 420 work together to continuously feed the insulating oil in the input channel 320 into the output channel 330. The insulating oil entering the output channel 330 is filtered by the filter assembly 340 and then returned to the oil tank. This allows for continuous filtering of the insulating oil in the transformer, reducing the amount of particulate matter in the oil and improving the transformer's operational stability.

[0075] Meanwhile, the visual component 600 is used to capture image data from the surface of the filter assembly 340. The processor is used to assess the impurity content in the insulating oil based on the change in the amount of particulate impurities filtered from the filter assembly 340 per unit time. When the impurity content exceeds a threshold, the processor issues a notification to the administrator, allowing them to take targeted action to ensure safe transformer operation.

[0076] Among them, the corresponding relationship between the change in the amount of particulate impurities filtered out from the surface of the filter component 340 per unit time and the impurity content in the insulating oil can be preset in advance according to actual needs, and this application does not impose specific restrictions.

[0077] It should be noted that the rotational speed of the drive wheel 500 and the amount of insulating oil delivered to the output channel 330 by the control core 400 and the control rod 420 can be flexibly selected based on actual needs. When the rotational speed of the drive wheel 500 and the amount of insulating oil delivered to the output channel 330 by the control core 400 and the control rod 420 are both set to high, the monitoring mechanism 200 can effectively perform both the filtering and particulate matter monitoring functions. When the rotational speed of the drive wheel 500 and the amount of insulating oil delivered to the output channel 330 by the control core 400 and the control rod 420 are both set to low, the monitoring mechanism 200 primarily performs the particulate matter monitoring function.

[0078] In general, the high-safety transformer provided in this embodiment can realize autonomous monitoring of insulating oil during operation, and to a certain extent plays an auxiliary regulatory role. When changes in the insulating oil quality are found, prompts can be issued in a timely manner, which effectively improves safety supervision and saves manpower.

[0079] In this embodiment, please combine Figures 6-10 The monitoring mechanism 200 also includes: a collector 700.

[0080] Collector 700 is cylindrical. An input cavity 710 and an output cavity 720 are defined at one end of collector 700. Both cavity 710 and cavity 720 extend axially along collector 700 and are spaced apart. The bottom ends of the input and output cavities 710 and 720 are interconnected, forming a collection cavity 730 for collecting insulating oil. Multiple collection cavities 730 are evenly spaced along the circumference of collector 700.

[0081] The collector 700 is rotatably coupled to the base 300, with the rotational axis of the collector 700 coinciding with its central axis. One end face of the collector 700 is in contact with the surface of the base 300, and a rotational seal is formed between the end face of the collector 700 and the surface of the base 300, so that the base 300 seals the openings of the input cavity 710 and the output cavity 720 of the collector 700.

[0082] The drive wheel 500 is coupled to the collector 700 via a partially geared intermittent mechanism (not shown). This allows the collector 700 to intermittently rotate by a predetermined angle after the drive wheel 500 rotates a predetermined number of times. Specifically, the collector 700 intermittently rotates by a predetermined angle after each predetermined number of rotations of the drive wheel 500. After the collector 700 rotates by the predetermined angle, it remains stationary until the drive wheel 500 completes the next predetermined number of rotations. During this period, the collector 700 remains stationary relative to the base 300.

[0083] The output channel 330 includes a first channel section 331 and a second channel section 332 . The filter assembly 340 and the visual assembly 600 are both disposed in the second channel section 332 .

[0084] The first flow channel section 331 is in communication with the accommodating chamber 310 , and an outlet end of the second flow channel section 332 is in communication with the oil tank.

[0085] The first flow channel section 331 at one end away from the accommodating chamber 310 and the second flow channel section 332 at one end away from the oil tank both extend to the surface where the base 300 and the collector 700 are in contact, so that the first flow channel section 331 can be connected to the input chamber 710 of a collecting chamber 730, and the second flow channel section 332 can be connected to the output chamber 720 of the collecting chamber 730.

[0086] Whenever the collector 700 rotates by a preset angle, the first flow channel section 331 and the second flow channel section 332 are connected to the next collection chamber 730 .

[0087] Through this design, the insulating oil entering the output flow channel 330 first enters the input chamber 710 of the current collection chamber 730 through the first flow channel section 331, and then returns to the second flow channel section 332 from the output chamber 720 of the current collection chamber 730 and is filtered in the second flow channel section 332.

[0088] With this design, each time collector 700 rotates a preset angle, the collection chamber 730, previously connected to the output channel 330, is filled with the insulating oil sample from that moment before the collector 700 rotated. This allows the collection chamber 730 to sample the insulating oil at regular intervals (corresponding to the preset number of rotations of the drive wheel 500).

[0089] Such a design can realize automatic sampling on time, replacing manual on-site sampling. It not only ensures the timeliness of sampling, but also avoids the problem of manual sampling being unable to be on site due to special reasons. This is of positive significance for analyzing the operating condition and aging condition of the transformer by analyzing the changes in the shape and change rate of the insulating oil during use.

[0090] It should be noted that the transmission ratio of the incomplete gear intermittent mechanism can be flexibly set according to actual needs, that is, the "preset number of turns" can be flexibly set according to actual needs to determine the time interval for the collector 700 to rotate to meet the requirements of intermittent sampling of insulating oil.

[0091] Furthermore, an oil hole communicating with the input cavity 710 or the output cavity 720 is formed on an end surface of the collector 700 away from the base 300 , and the oil hole is detachably equipped with a sealing member 740 for sealing the oil hole.

[0092] With this design, when taking out the insulating oil sample from the collector 700 , there is no need to disassemble the collector 700 . Instead, the insulating oil sample can be taken out by simply opening the sealing member 740 corresponding to the collection cavity 730 containing the insulating oil sample.

[0093] Furthermore, based on this design, after installing the collector 700, each collection chamber 730 can be filled with new insulating oil through the oil hole, and then the oil hole can be sealed with the plugging member 740. This prevents the introduction of additional air when the corresponding collection chamber 730 is connected to the output channel 330. Furthermore, the effect of the new insulating oil already in the collection chamber 730 on sampling accuracy is negligible, greatly improving ease of use and safety.

[0094] In this embodiment, a screw 741 is fixedly connected to the side of the blocking member 740 away from the collector 700. The screw 741 is arranged along the axial direction of the collector 700. The screw 741 is threadedly matched with a matching sleeve 742, and the matching sleeve 742 has an outer gear ring.

[0095] The base 300 is further provided with a transmission gear 360 , which is coupled to the driving wheel 500 via a transmission component.

[0096] The matching sleeve 742 corresponding to the collection chamber 730 currently connected to the output flow channel 330 is meshed with the transmission gear 360. Whenever the collector 700 rotates a preset angle, the transmission gear 360 meshes with the matching sleeve 742 corresponding to the next collection chamber 730.

[0097] Before the collection chamber 730 is connected to the output channel 330, the matching sleeve 742 is located at one end of the screw 741. When the collection chamber 730 is connected to the output channel 330, the matching sleeve 742 corresponding to the collection chamber 730 is engaged with the transmission gear 360 and is driven by the transmission gear 360, so that the matching sleeve 742 moves toward the other end of the screw 741 and separates from the transmission gear 360. Figure 11 shown.

[0098] With this design, in addition to the collection chamber 730 currently connected to the output flow channel 330, the other collection chambers 730 can be judged by whether the matching sleeve 742 has moved along the screw 741 to determine which collection chambers 730 have collected insulating oil samples, thereby facilitating the quick and accurate removal of insulating oil samples and avoiding blindness.

[0099] On the other hand, based on the number of collection cavities 730 in which the screw 741 has moved and the rotation interval of the collector 700, the collection time and collection order of the samples in each collection cavity 730 can be determined.

[0100] In this embodiment, the processor is also configured to assess the condition of the insulating oil based on its color. Specifically, when the insulating oil is slightly transparent and light yellow, the processor indicates that the insulating oil is normal. When the insulating oil is light red, the processor indicates that the insulating oil quality is beginning to deteriorate. When the insulating oil is brown, tan, or black, the processor indicates that the insulating oil is severely deteriorated. When the insulating oil is green, the processor indicates that the insulating oil color has changed abnormally.

[0101] Furthermore, the second flow channel section 332 of the output flow channel 330 includes an expanded diameter section 333, within which the filter assembly 340 is disposed. The visual component 600 is embedded in the end wall of the expanded diameter section 333, near the accommodating chamber 310. This design increases the filtering surface area of ​​the filter assembly 340, reducing the probability of particulate matter completely blocking the filter assembly 340, thereby ensuring longer and more stable operation of the monitoring mechanism 200.

[0102] It should be noted that when the filter assembly 340 needs to be cleaned, the monitoring mechanism 200 can be directly disassembled to replace or clean the filter assembly 340, or the monitoring mechanism 200 can be removed without disassembling it, and the output flow channel 330 can be connected to the waste liquid collection device, and the output flow channel 330 can be connected to the cleaning liquid storage device, and the driver can be used to drive the driving wheel 500 to reverse (i.e., toward the direction opposite to ... Figure 2 In this way, the control core 400 and the control rod 420 can be used to transport the cleaning agent in the output channel 330 to the input channel 320, thereby backwashing the filter device and achieving the purpose of cleaning.

[0103] In summary, the high-safety transformer provided by the embodiment of the present invention can realize autonomous monitoring of the insulating oil during operation, and plays a role in auxiliary supervision to a certain extent. When changes in the insulating oil quality are found, prompts can be issued in a timely manner, which effectively improves safety supervision and saves manpower.

[0104] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A high-safety transformer, characterized in that: include: Transformer body and monitoring mechanism; The monitoring mechanism includes: a processor, a base, a control core, a driving wheel and a visual component; The base is provided with a cylindrical accommodating cavity; the base is provided with an input flow channel and an output flow channel, one end of each of the input flow channel and the output flow channel extends to the inner wall of the accommodating cavity, and the other end of each of the input flow channel and the output flow channel is connected to the oil tank of the transformer body; Along the circumference of the accommodating cavity, the input flow channel and the output flow channel are spaced apart; a filter assembly is provided in the output flow channel, and the visual assembly is embedded in the inner wall of the output flow channel and is arranged toward the filter assembly; The control core is cylindrical and rotatably fits in the accommodating cavity, with the outer wall of the control core abutting against the inner wall of the accommodating cavity and forming a rotational seal; the control core is provided with a radial through hole, a control rod slidably fits in the radial through hole, and a sliding seal is formed between the control rod and the inner wall of the radial through hole; The driving wheel is rotatably engaged with the base, and the driving wheel is driven by a driver; one end of the control rod is eccentrically hinged to the side of the driving wheel; The driving wheel has a first rotation state, a second rotation state, a third rotation state and a fourth rotation state; When the driving wheel is in the first rotation state, the length of the control rod extending into the radial through hole reaches a maximum, the radial through hole is located in the area between the input flow channel and the output flow channel, and the radial through hole is closed by the inner side wall of the accommodating cavity; When the driving wheel is in the second rotation state, the radial through hole is connected to the input flow channel, and the control rod continues to move outward from the radial through hole, and the insulating oil in the input flow channel is sucked into the radial through hole; When the driving wheel is in the third rotation state, the length of the control rod extending into the radial through hole reaches a minimum, the radial through hole is located in the area between the input flow channel and the output flow channel, and the radial through hole is closed by the inner side wall of the accommodating cavity; When the driving wheel is in the fourth rotation state, the radial through hole is connected to the output flow channel, and the control rod continues to move into the radial through hole, so that the insulating oil in the radial through hole is pushed into the output flow channel; The visual component is used to obtain image data of the surface of the filter component, and the processor is used to evaluate the impurity content in the insulating oil based on the impurity content on the surface of the filter component; when the impurity content exceeds a content threshold, the processor issues a prompt.

2. The high-safety transformer according to claim 1, characterized in that: The monitoring mechanism further includes: a collector; The collector is cylindrical; an input cavity and an output cavity are formed on one end surface of the collector, and the input cavity and the output cavity both extend along the axial direction of the collector and are spaced apart; the bottom ends of the input cavity and the output cavity are connected, and the input cavity and the output cavity constitute a collection cavity for collecting insulating oil, and a plurality of the collection cavities are evenly spaced along the circumference of the collector; The collector is rotatably engaged with the base, with the rotation axis of the collector coinciding with its central axis; an end face of the collector is in contact with the surface of the base, and a rotational seal is formed between the end face of the collector and the surface of the base, so that the base seals the openings of both the input cavity and the output cavity; The driving wheel is in transmission cooperation with the collector through an incomplete gear intermittent mechanism, so that the collector can rotate a preset angle after the driving wheel rotates a preset number of times; The output flow channel includes a first flow channel section and a second flow channel section; the filter component and the visual component are both arranged in the second flow channel section; The first flow channel section is connected to the accommodating chamber, and the outlet end of the second flow channel section is connected to the oil tank; one end of the first flow channel section away from the accommodating chamber and one end of the second flow channel section away from the oil tank both extend to the surface where the base and the collector are in contact, so that the first flow channel section can be connected to the input chamber of one of the collecting chambers, and the second flow channel section can be connected to the output chamber of the collecting chamber; wherein, whenever the collector rotates to the preset angle, the first flow channel section and the second flow channel section are connected to the next collecting chamber.

3. The high-safety transformer according to claim 2, characterized in that: An oil hole communicating with the input cavity or the output cavity is formed on an end surface of the collector away from the base, and the oil hole is detachably equipped with a blocking member for closing the oil hole.

4. The high-safety transformer according to claim 3, characterized in that: A screw is fixedly connected to the side of the blocking member away from the collector, the screw is arranged along the axial direction of the collector, the screw thread is matched with a matching sleeve, and the matching sleeve has an outer gear ring; The base is further provided with a transmission gear, which is in transmission engagement with the drive wheel; the mating sleeve corresponding to the collection chamber currently connected to the output flow channel is meshed with the transmission gear; whenever the collector rotates by the preset angle, the transmission gear is meshed with the mating sleeve corresponding to the next collection chamber; Wherein, before the collecting chamber is connected with the output flow channel, the matching sleeve is located at one end of the screw; when the collecting chamber is connected with the output flow channel, the matching sleeve corresponding to the collecting chamber is engaged with the transmission gear and is driven by the transmission gear, so that the matching sleeve moves toward the other end of the screw and separates from the transmission gear.

5. The high-safety transformer according to claim 1, characterized in that: The inlet end of the input flow channel is located at the bottom of the oil tank, and the outlet end of the output flow channel extends toward the top of the oil tank.

6. The high-safety transformer according to claim 1, characterized in that: The visual component is configured with a light source.

7. The high-safety transformer according to claim 1, characterized in that: The processor is further configured to evaluate the condition of the insulating oil based on the color of the insulating oil; When the insulating oil is slightly transparent and light yellow, the processor indicates that the insulating oil is normal; when the insulating oil is light red, the processor indicates that the quality of the insulating oil has begun to deteriorate; when the insulating oil is brown, brown or black, the processor indicates that the insulating oil has seriously deteriorated; when the insulating oil is green, the processor indicates that the color of the insulating oil has changed abnormally.

8. The high-safety transformer according to claim 1, characterized in that: A mounting groove is provided on a side wall of the accommodating cavity away from the input flow channel and the output flow channel, and the driving wheel is mounted in the mounting groove.

9. The high-safety transformer according to claim 1, characterized in that: The output flow channel has an expanded diameter section, and the filter assembly is arranged in the expanded diameter section.

10. The high-safety transformer according to claim 9, characterized in that: The visual component is embedded in an end wall of the expanded diameter section close to the accommodating cavity.

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