A high safety transformer

Abstract

The present application relates to the technical field of transformer, in particular to a high safety transformer, including transformer main body and monitoring mechanism, monitoring mechanism includes processor, pedestal, control core, drive wheel and visual assembly. Pedestal is provided with containing cavity, input flow channel and output flow channel, input flow channel and output flow channel are extended to containing cavity, and other end is communicated with oil tank. The filter assembly is provided 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 fitted in the containing cavity, and the control core is provided with a radial through hole, and the control rod is slidingly fitted in the radial through hole. The drive wheel is rotationally fitted in the pedestal, and one end of the control rod is eccentrically hinged to the drive wheel. The visual assembly is used for obtaining image data on the surface of the filter assembly, and the processor is used for evaluating the impurity content in the insulating oil according to the impurity content on the surface of the filter assembly. It can realize the independent monitoring of the insulating oil during operation, can timely send prompt, and effectively improves the safety supervision strength.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformers, in particular to a high-safety transformer. BACKGROUND

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

[0003] The property change condition and speed of the insulating oil are directly related to the operation safety and stability of the transformer. Therefore, the property change condition and speed of the insulating oil also reflect the aging condition of the internal components of the transformer.

[0004] At present, the detection of the insulating oil of the transformer is performed manually. The operating personnel need to regularly sample and detect the insulating oil of the transformer and record the property change condition of the insulating oil of the transformer. These works require a large amount of manpower and have a high labor load.

[0005] In addition, when the aging condition of the transformer is evaluated according to the property change condition and speed of the insulating oil, the insulating oil needs to be sampled and analyzed regularly. Since the number of transformers is usually large, and the power system often has a shortage of operating personnel in the season of high-load power supply, it is easy to cause the insulating oil of the transformer to be sampled in time.

[0006] Therefore, the present application is proposed. SUMMARY

[0007] The present application aims to provide a high-safety transformer which can realize self-monitoring of the insulating oil during operation, plays an auxiliary monitoring role to a certain extent, can timely issue a prompt when the quality of the insulating oil changes, effectively improves the safety monitoring strength, and saves manpower.

[0008] The embodiment of the present application is implemented as follows:

[0009] A high-safety transformer comprises a transformer body and a monitoring mechanism.

[0010] The monitoring mechanism comprises a processor, a base, a control core, a driving wheel and a visual component.

[0011] The base is provided with an accommodating cavity in the form of a cylinder. The base is provided with an input flow channel and an output flow channel, both of which extend to the inner side wall of the accommodating cavity at one end and are in communication with the oil tank of the transformer body at the other end.

[0012] The input flow channel and the output flow channel are arranged at intervals along the circumference of the accommodating cavity. The 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 towards the filter assembly.

[0013] The control core is in the form of a cylinder and is rotatably fitted in the accommodating cavity, and the outer side wall of the control core is in abutment with and rotatably sealed with the inner side wall of the accommodating cavity. The control core is provided with a radial through hole, and a control rod is slidably fitted in the radial through hole and is in sliding seal with the inner wall of the radial through hole.

[0014] The driving wheel is rotatably fitted in the base and is driven by a driver. One end of the control rod is eccentrically hinged to the side surface of the driving wheel.

[0015] The driving wheel has a first rotation state, a second rotation state, a third rotation state and a fourth rotation state.

[0016] 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 region 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.

[0017] When the driving wheel is in the second rotation state, the radial through hole is in communication with the input flow channel, and the control rod continuously moves outward from the radial through hole, and the insulating oil in the input flow channel is sucked into the radial through hole.

[0018] 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 region 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.

[0019] When the driving wheel is in the fourth rotation state, the radial through hole is in communication with the output flow channel, and the control rod continuously moves into the radial through hole, and the insulating oil in the radial through hole is pushed into the output flow channel.

[0020] The visual assembly is used to acquire image data of the surface of the filter assembly, and the processor is used to evaluate the impurity content in the insulating oil according to the impurity amount of the surface of the filter assembly. When the impurity content exceeds a content threshold, the processor issues a prompt.

[0021] Further, the monitoring mechanism further comprises a collector.

[0022] The collector is in the form of a cylinder. An input cavity and an output cavity are formed in the end face of one end of the collector, and the input cavity and the output cavity are arranged at intervals along the axial direction of the collector. The bottom ends of the input cavity and the output cavity are in communication, and the input cavity and the output cavity constitute a collection cavity for collecting insulating oil. A plurality of collection cavities are uniformly arranged at intervals along the circumference of the collector.

[0023] The collector is rotatably connected to the base, and the rotation axis of the collector is coaxial with the central axis of the base. One end surface of the collector is attached to the surface of the base, and the end surface of the collector and the surface of the base are rotatably sealed to enable the base to seal the mouth of the input cavity and the output cavity.

[0024] The drive wheel is in driving connection with the collector through an incomplete gear intermittent mechanism, so that the collector can rotate by a preset angle after the drive wheel rotates by a preset number of turns.

[0025] The output flow channel includes a first flow channel section and a second flow channel section. The filter assembly and the visual assembly are arranged in the second flow channel section.

[0026] The first flow channel section is in communication with the containing cavity, and the outlet end of the second flow channel section is in communication with the oil tank. The end of the first flow channel section away from the containing cavity and the end of the second flow channel section away from the oil tank both extend to the surface of the base attached to the collector, so that the first flow channel section can be in communication with the input cavity of one collection cavity, and the second flow channel section can be in communication with the output cavity of the collection cavity. Among them, every time the collector rotates by a preset angle, the first flow channel section and the second flow channel section are in communication with the next collection cavity.

[0027] Further, an oil hole in communication with the input cavity or the output cavity is formed in the end surface of the collector away from the base, and a plugging member for sealing the oil hole is detachably connected to the oil hole.

[0028] Further, the plugging member is fixedly connected to a screw rod on the side away from the collector, the screw rod is arranged along the axial direction of the collector, the screw rod is in threaded connection with a matching sleeve, and the matching sleeve has an external gear ring.

[0029] The base is further provided with a transmission gear in driving connection with the drive wheel. The matching sleeve corresponding to the collection cavity in communication with the output flow channel is in meshing connection with the transmission gear. Every time the collector rotates by a preset angle, the transmission gear is in meshing connection with the matching sleeve corresponding to the next collection cavity.

[0030] Among them, before the collection cavity is in communication with the output flow channel, the matching sleeve is located at one end of the screw rod. When the collection cavity is in communication with the output flow channel, the matching sleeve corresponding to the collection cavity is in meshing connection with the transmission gear and is driven by the transmission gear, so that the matching sleeve moves towards the other end of the screw rod and is separated from the transmission gear.

[0031] Further, 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 towards the top of the oil tank.

[0032] Further, the visual assembly is provided with a light source.

[0033] Further, the processor is further configured to evaluate the condition of the insulating oil according to the color of the insulating oil.

[0034] When the insulating oil is slightly transparent and light yellow, the processor prompts that the insulating oil is normal. When the insulating oil is light red, the processor prompts that the oil quality of the insulating oil starts to deteriorate. When the insulating oil is brown, brown or black, the processor prompts that the insulating oil is seriously deteriorated. When the insulating oil is green, the processor prompts that the color of the insulating oil is abnormally changed.

[0035] Further, the installation groove is arranged on the 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 installation groove.

[0036] Further, the output flow channel has a diameter expansion section, and the filtering assembly is arranged in the diameter expansion section.

[0037] Further, the visual assembly is embedded in the end wall of the diameter expansion section close to the accommodating cavity.

[0038] The beneficial effects of the technical scheme of the embodiment of the present application include:

[0039] The control core and the control rod of the high-safety transformer cooperate to continuously send the insulating oil in the input flow channel into the output flow channel, the insulating oil entering the output flow channel is filtered by the filtering assembly, and the filtered insulating oil returns to the oil tank. In this way, the insulating oil in the transformer can be continuously filtered, the content of particulate impurities in the insulating oil is reduced, and the operation stability of the transformer is improved.

[0040] On the other hand, the visual assembly is used to obtain image data of the surface of the filtering assembly, and the processor is used to evaluate the impurity content in the insulating oil according to the change of the amount of particulate impurities filtered out from the surface of the filtering assembly per unit time. When the impurity content exceeds the content threshold, the processor sends a prompt to the manager, so that the relevant personnel can carry out targeted treatment to ensure the operation safety of the transformer.

[0041] The change of the amount of particulate impurities filtered out from the surface of the filtering assembly per unit time and the corresponding relationship between the impurity content in the insulating oil can be preset in advance according to actual needs, and the present application does not make specific limitations.

[0042] It should be noted that the rotational speed of the driving wheel, the amount of insulating oil sent into the output flow channel by the control core and the control rod each time can be flexibly selected according to actual needs. When the rotational speed of the driving wheel, the amount of insulating oil sent into the output flow channel by the control core and the control rod each time are all set to be large, the monitoring mechanism can simultaneously effectively play the filtering and particulate impurity monitoring functions. When the rotational speed of the driving wheel, the amount of insulating oil sent into the output flow channel by the control core and the control rod each time are all set to be small, at this time, the monitoring mechanism mainly plays the function of particulate impurity monitoring.

[0043] Overall, the high safety transformer provided by the embodiment of the present application can realize self-monitoring of the insulating oil during operation, to a certain extent, plays an auxiliary supervisory role, when the insulating oil quality changes are found, can timely send a prompt, effectively improves the safety supervision strength, saves the manual. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, for those skilled in the art, without creative labor, other related drawings can also be obtained according to these drawings.

[0045] Figure 1 The overall structure diagram of the high safety transformer provided by the embodiment of the present application;

[0046] Figure 2 The structure diagram of the monitoring mechanism (when the driving wheel is in the first rotating state);

[0047] Figure 3 The structure diagram of the monitoring mechanism (when the driving wheel is in the second rotating state);

[0048] Figure 4 The structure diagram of the monitoring mechanism (when the driving wheel is in the third rotating state);

[0049] Figure 5 The structure diagram of the monitoring mechanism (when the driving wheel is in the fourth rotating state);

[0050] Figure 6 The side structure diagram of the monitoring mechanism;

[0051] Figure 7 The back structure diagram of the base;

[0052] Figure 8 The structure diagram of the end surface of the collector close to the base;

[0053] Figure 9 The internal structure diagram of the collector;

[0054] Figure 10 The structure diagram of the end surface of the collector away from the base;

[0055] Figure 11 The diagram when the matching sleeve is driven to the other end of the screw rod by the transmission gear.

[0056] Explanation of reference signs:

[0057] Transformer main body 100; monitoring mechanism 200; base 300; containing cavity 310; input flow channel 320; output flow channel 330; first flow channel section 331; second flow channel section 332; diameter expansion 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 cavity 710; output cavity 720; collection cavity 730; obturator 740; screw rod 741; matching sleeve 742. DETAILED DESCRIPTION

[0058] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0059] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0060] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0061] The terms "first", "second", and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

[0062] In addition, the terms "parallel", "vertical", and the like do not mean that the components must be absolutely parallel or vertical, but can be slightly inclined. For example, "parallel" only means that its direction is relatively more parallel than "vertical", and does not mean that the structure must be completely parallel, but can be slightly inclined.

[0063] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0064] In order to overcome the deficiencies in the prior art, please refer toFigure 1 and Figure 2 The embodiment provides a high-safety transformer, which comprises a transformer body 100 and a monitoring mechanism 200.

[0065] The monitoring mechanism 200 comprises a processor (not shown in the figure), a base 300, a control core 400, a driving wheel 500 and a visual assembly 600.

[0066] The base 300 is provided with a containing cavity 310 in a cylindrical shape.

[0067] The base 300 is provided with an input flow channel 320 and an output flow channel 330, both of which are located inside the base 300, and both of which extend to the inner side wall of the containing cavity 310 at one end to communicate with the containing cavity 310, and both of which penetrate the surface of the base 300 at the other end. The input flow channel 320 and the output flow channel 330 further communicate with the oil tank of the transformer body 100 through a connecting pipe (not shown in the figure).

[0068] The mouth of the input flow channel 320 and the mouth of the output flow channel 330 are arranged at intervals along the circumference of the containing cavity 310. The output flow channel 330 is provided with a filter assembly 340 for filtering particulate impurities in the insulating oil. The filter assembly 340 can adopt a filter plate.

[0069] The visual assembly 600 is embedded in the inner wall of the output flow channel 330 and is arranged towards the filter assembly 340. Specifically, the visual assembly 600 is arranged towards the side where the particulate impurities on the filter assembly 340 are located, so as to obtain the specific situation of the particulate impurities on the filter assembly 340.

[0070] The control core 400 is in a cylindrical shape and is rotationally fitted in the containing cavity 310, the outer side wall of the control core 400 is attached to the inner side wall of the containing cavity 310 and is rotationally sealed. The rotational axis of the control core 400 is arranged to coincide with the central axis.

[0071] The control core 400 is provided with a radial through hole 410, and a control rod 420 is slidingly fitted in the radial through hole 410, the diameter of the control rod 420 is matched with the hole diameter of the radial through hole 410, and the control rod 420 is attached to and slidingly sealed with the inner wall of the radial through hole 410.

[0072] The driving wheel 500 is rotationally fitted in the base 300, and the driving wheel 500 is driven by a driver (not shown in the figure). One end of the control rod 420 is eccentrically hinged to the side surface of the driving wheel 500.

[0073] In the embodiment, the installation groove 350 is formed on the side wall of the accommodating cavity 310 away from the input flow channel 320 and the output flow channel 330, and the driving wheel 500 is installed in the installation groove 350. The rotation axis of the driving wheel 500 is parallel to the rotation axis of the control core 400.

[0074] The connecting pipe connected with the input flow channel 320 is communicated with the bottom of the oil tank, and the connecting pipe connected with the output flow channel 330 extends towards the top of the oil tank. That is, the inlet end of the input flow channel 320 is located at the bottom of the oil tank, and the outlet end of the output flow channel 330 extends towards the top of the oil tank.

[0075] In order to facilitate the observation of the image at the filter assembly 340, the visual assembly 600 is configured with a light source.

[0076] In the 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 hole diameter of the radial through hole 410.

[0077] During the one-way rotation of the driving wheel 500 (in the direction indicated by the arrow in Figures 2-5 , the control core 400 will rotate reciprocatingly under the action of the control rod 420.

[0078] The driving wheel 500 has a first rotation state, a second rotation state, a third rotation state and a fourth rotation state.

[0079] 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 hinged end of the control rod 420 is closest to the control core 400, as shown in Figure 2 . In this state, the radial through hole 410 is located in the region between the input flow channel 320 and the output flow channel 330, and the radial through hole 410 is closed by the inner side wall of the accommodating cavity 310. That is, at this time, the radial through hole 410 is just not communicated with the input flow channel 320, and is also just not communicated with the output flow channel 330.

[0080] When the driving wheel 500 leaves the first rotation state, it enters the second rotation state.

[0081] When the driving wheel 500 enters the second rotation state, the radial through hole 410 is communicated with the input flow channel 320, and the control rod 420 continuously moves outward from the radial through hole 410, and the insulating oil in the input flow channel 320 is sucked into the radial through hole 410, as shown in Figure 3 . During this process, the hinged end of the control rod 420 gradually moves away from the control core 400.

[0082] When the driving wheel 500 rotates for a period of time in the second rotation state, the driving wheel 500 enters the third rotation state.

[0083] 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, as shown in FIG. 4C. Figure 4 As shown in FIG. 4C, the radial through hole 410 is located in the region between the input flow channel 320 and the output flow channel 330, and the radial through hole 410 is closed by the inner side wall of the containing cavity 310. In this state, the radial through hole 410 is just not in communication with the input flow channel 320, and is just not in communication with the output flow channel 330.

[0084] When the driving wheel 500 continues to rotate away from the third rotation state, it enters the fourth rotation state.

[0085] When the driving wheel 500 enters the fourth rotation state, the radial through hole 410 is in communication with the output flow channel 330, as shown in FIG. 4D. Figure 5 As shown in FIG. 4D, 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. In this process, the hinged end of the control rod 420 gradually approaches the control core 400.

[0086] It should be noted that the first rotation state and the third rotation state of the driving wheel 500 are both transient states, and the driving wheel 500 is in the second rotation state after leaving the first rotation state and before entering the third rotation state, and the driving wheel 500 is in the fourth rotation state after leaving the third rotation state and before entering the first rotation state.

[0087] Through this design, the control core 400 and the control rod 420 cooperate to continuously send the insulating oil in the input flow channel 320 into the output flow channel 330, and the insulating oil entering the output flow channel 330 is filtered by the filtering assembly 340, and the filtered insulating oil returns to the oil tank. In this way, the insulating oil in the transformer can be continuously filtered, the content of particulate impurities in the insulating oil is reduced, and the operation stability of the transformer is improved.

[0088] On the other hand, the visual assembly 600 is used to obtain image data of the surface of the filtering assembly 340, and the processor is used to evaluate the impurity content in the insulating oil according to the change of the amount of particulate impurities filtered out from the surface of the filtering assembly 340 within a unit time. When the impurity content exceeds the content threshold, the processor sends a prompt to the manager, so that the relevant personnel can carry out targeted treatment to ensure the operation safety of the transformer.

[0089] Among them, the change of the amount of particulate impurities filtered out from the surface of the filtering assembly 340 within a unit time and the corresponding relationship between the impurity content in the insulating oil can be preset in advance according to actual needs, and the present application does not make specific limitations.

[0090] It should be noted that the rotation speed of the driving wheel 500, the amount of insulating oil sent into the output flow channel 330 by the control core 400 and the control rod 420 each time can be flexibly selected according to actual needs. When the rotation speed of the driving wheel 500, the amount of insulating oil sent into the output flow channel 330 by the control core 400 and the control rod 420 each time are all set to be large, the monitoring mechanism 200 can simultaneously effectively play the filtering and particle impurity monitoring functions. When the rotation speed of the driving wheel 500, the amount of insulating oil sent into the output flow channel 330 by the control core 400 and the control rod 420 each time are all set to be small, at this time, the monitoring mechanism 200 mainly plays the particle impurity monitoring function.

[0091] Overall, the high-safety transformer provided by the embodiment can realize autonomous monitoring of insulating oil during operation, to a certain extent, plays an auxiliary regulatory role, and can timely issue a prompt when the quality of the insulating oil changes, effectively improving the safety supervision strength and saving manpower.

[0092] In the embodiment, please combine Figures 6-10 The monitoring mechanism 200 further comprises a collector 700.

[0093] The collector 700 is in a cylindrical shape. An end face of the collector 700 is provided with an input cavity 710 and an output cavity 720, and the input cavity 710 and the output cavity 720 are both extended along the axial direction of the collector 700 and are arranged at intervals. The bottom ends of the input cavity 710 and the output cavity 720 are connected in communication, and the input cavity 710 and the output cavity 720 constitute a collection cavity 730 for collecting insulating oil, and a plurality of collection cavities 730 are uniformly and intervaliy arranged along the circumferential direction of the collector 700.

[0094] The collector 700 is rotationally fitted in the base 300, and the rotational axis of the collector 700 is arranged to coincide with the central axis of the collector 700. An end face of the collector 700 is attached to the surface of the base 300, and the end face of the collector 700 and the surface of the base 300 are rotationally sealed, so that the base 300 closes the mouth parts of all the input cavities 710 and the output cavities 720 of the collector 700.

[0095] The driving wheel 500 is drivingly fitted with the collector 700 through an incomplete gear intermittent mechanism (not shown in the figure), so that the collector 700 can intermittently rotate by a preset angle after the driving wheel 500 continuously rotates by a preset number of turns. That is, the collector 700 can intermittently rotate by a preset angle after the driving wheel 500 rotates by a preset number of turns. When the collector 700 rotates by a preset angle, the collector 700 is stationary before the driving wheel 500 completes the rotation of the next preset number of turns, that is, the collector 700 is stationary relative to the base 300 in this process.

[0096] The output flow channel 330 comprises a first flow channel section 331 and a second flow channel section 332. The filtering assembly 340 and the visual assembly 600 are both arranged in the second flow channel section 332.

[0097] The first flow channel section 331 is in communication with the accommodating cavity 310, and the outlet end of the second flow channel section 332 is in communication with the oil tank.

[0098] The end of the first flow channel section 331 away from the accommodating cavity 310 and the end of the second flow channel section 332 away from the oil tank both extend to the surface of the base 300 abutting the collector 700, so that the first flow channel section 331 can be in communication with the input cavity 710 of one collection cavity 730, and the second flow channel section 332 can be in communication with the output cavity 720 of the collection cavity 730.

[0099] Here, each time the collector 700 rotates by a preset angle, the first flow channel section 331 and the second flow channel section 332 are in communication with the next collection cavity 730.

[0100] Through this design, the insulating oil entering the output flow channel 330 first enters the input cavity 710 of the current collection cavity 730 through the first flow channel section 331, and then returns to the second flow channel section 332 from the output cavity 720 of the current collection cavity 730, and is filtered in the second flow channel section 332.

[0101] In this way, after each rotation of the collector 700 by a preset angle, the collection cavity 730 previously in communication with the output flow channel 330 is filled with the insulating oil sample at the moment before the rotation of the collector 700. In this way, the collection cavity 730 can be used to sample the insulating oil at intervals corresponding to the time of a preset number of rotations of the driving wheel 500.

[0102] In this way, automatic sampling at regular intervals can be achieved, replacing manual on-site sampling, which not only ensures the timeliness of sampling, but also avoids the problem of manual sampling due to special reasons. This has a positive significance for analyzing the running condition and aging condition of the transformer by analyzing the shape change and change rate of the insulating oil during use.

[0103] It should be noted that the transmission ratio of the incomplete gear intermittent mechanism can be flexibly set according to actual needs, i.e., the "preset number of rotations" can be flexibly set according to actual needs to determine the time interval of the rotation of the collector 700, so as to meet the requirements of intermittent sampling of the insulating oil.

[0104] Further, the end face of the collector 700 away from the base 300 is provided with an oil hole in communication with the input cavity 710 or the output cavity 720, and the oil hole is detachably fitted with a plugging piece 740 for closing the oil hole.

[0105] Through the design, when the insulating oil sample is taken out from the collector 700, the collector 700 does not need to be disassembled, and the insulating oil sample can be taken out only by opening the plugging piece 740 corresponding to the sampling cavity 730 filled with the insulating oil sample.

[0106] On the other hand, based on the design, after the collector 700 is installed, new insulating oil can be filled in each sampling cavity 730 through the oil hole, and the oil hole is closed by the plugging piece 740. In this way, when the corresponding sampling cavity 730 is communicated with the output flow channel 330, no additional air is introduced, and the influence of the new insulating oil originally existing in the sampling cavity 730 on the sampling accuracy can be ignored, greatly improving the convenience and safety of use.

[0107] In the embodiment, the plugging piece 740 is fixedly connected with a screw rod 741 away from the collector 700, the screw rod 741 is arranged along the axial direction of the collector 700, the screw rod 741 is threadedly matched with a matching sleeve 742, and the matching sleeve 742 has an outer gear ring.

[0108] The base 300 is further provided with a transmission gear 360, and the transmission gear 360 is in transmission cooperation with the driving wheel 500 through a transmission member.

[0109] The matching sleeve 742 corresponding to the sampling cavity 730 currently communicated with the output flow channel 330 is engaged with the transmission gear 360. Each time the collector 700 rotates by a preset angle, the transmission gear 360 is engaged with the matching sleeve 742 corresponding to the next sampling cavity 730.

[0110] Wherein, before the sampling cavity 730 is communicated with the output flow channel 330, the matching sleeve 742 is located at one end of the screw rod 741. When the sampling cavity 730 is communicated with the output flow channel 330, the matching sleeve 742 corresponding to the sampling cavity 730 is engaged with and driven by the transmission gear 360, so that the matching sleeve 742 moves towards the other end of the screw rod 741 and is separated from the transmission gear 360, as shown in Figure 11 .

[0111] Through the design, in addition to the sampling cavity 730 currently communicated with the output flow channel 330, whether the insulating oil sample has been collected in other sampling cavities 730 can be determined by whether the matching sleeve 742 moves along the screw rod 741, so that the insulating oil sample can be quickly and accurately taken out, thereby avoiding blindness.

[0112] On the other hand, based on the number of the sampling cavities 730 in which the screw rod 741 has moved, in combination with the rotation interval of the collector 700, the sampling time and the sampling sequence of the samples in each sampling cavity 730 can be determined.

[0113] In the embodiment, the processor is further configured to evaluate the condition of the insulating oil according to the color of the insulating oil. Specifically, when the insulating oil is slightly transparent and light yellow, the processor prompts that the insulating oil is normal. When the insulating oil is light red, the processor prompts that the oil quality of the insulating oil starts to deteriorate. When the insulating oil is brown, brown or black, the processor prompts that the insulating oil is seriously deteriorated. When the insulating oil is green, the processor prompts that the color of the insulating oil is abnormally changed.

[0114] Further, the second flow channel section 332 of the output flow channel 330 has an expanding section 333, and the filter assembly 340 is arranged in the expanding section 333. The visual assembly 600 is embedded in the expanding section 333 close to the end wall of the accommodating cavity 310. Through the design, the filtering surface of the filter assembly 340 can be increased, the probability that the filter assembly 340 is completely blocked by particulate impurities is reduced, and the monitoring mechanism 200 can work stably for a longer time.

[0115] 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 disassembled, the output flow channel 330 is connected with the waste liquid collecting device, and the output flow channel 330 is connected with the cleaning liquid storage device. The driving wheel 500 is driven to rotate in the opposite direction (i.e., in the direction opposite to the direction indicated by the arrow in the figure), so that the control core 400 and the control rod 420 can transport the cleaning agent in the output flow channel 330 to the input flow channel 320, realize backwashing of the filter device, and achieve the purpose of cleaning. Figure 2

[0116] In summary, the high-safety transformer provided by the embodiment of the present application can realize self-monitoring of the insulating oil during operation, to a certain extent, plays an auxiliary supervision role, and can timely issue a prompt when the quality of the insulating oil changes, effectively improves the safety supervision strength, and saves manual work.

[0117] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.​

Claims

1. A high safety transformer, characterized by, The utility model relates to a transformer monitoring mechanism, including: a transformer body and a monitoring mechanism; the monitoring mechanism includes a processor, a base, a control core, a drive wheel and a visual component; the base is provided with a containing cavity, and the containing cavity is cylindrical; the base is provided with an input flow channel and an output flow channel, both ends of the input flow channel and the output flow channel extend to the inner side wall of the containing cavity, and the other ends of the input flow channel and the output flow channel are communicated with the oil tank of the transformer body; the input flow channel and the output flow channel are arranged at intervals along the circumference of the containing cavity; the output flow channel is provided with a filter component, and the visual component is embedded in the inner wall of the output flow channel and is arranged towards the filter component; the control core is cylindrical and is rotationally fitted in the containing cavity, the outer side wall of the control core is attached to the inner side wall of the containing cavity and is rotationally sealed; the control core is provided with a radial through hole, a control rod is slidingly fitted in the radial through hole, and the control rod and the inner wall of the radial through hole are slidingly sealed; the drive wheel is rotationally fitted in the base, and the drive wheel is driven by a driver; one end of the control rod is eccentrically hinged to the side surface of the drive wheel; the drive wheel has a first rotation state, a second rotation state, a third rotation state and a fourth rotation state; when the drive wheel is in the first rotation state, the length of the control rod inserted into the radial through hole reaches the maximum, the radial through hole is located in the region between the input flow channel and the output flow channel, and the radial through hole is closed by the inner side wall of the containing cavity; when the drive wheel is in the second rotation state, the radial through hole is communicated with the input flow channel, and the control rod continuously moves outward from the radial through hole, and the insulating oil in the input flow channel is sucked into the radial through hole; when the drive wheel is in the third rotation state, the length of the control rod inserted into the radial through hole reaches the minimum, the radial through hole is located in the region between the input flow channel and the output flow channel, and the radial through hole is closed by the inner side wall of the containing cavity; when the drive wheel is in the fourth rotation state, the radial through hole is communicated with the output flow channel, and the control rod continuously moves into the radial through hole, and the insulating oil in the radial through hole is pushed into the output flow channel; the visual component is used to acquire image data of the surface of the filter component, the processor is used to evaluate the impurity content in the insulating oil according to the impurity content of the surface of the filter component, and the processor issues a prompt when the impurity content exceeds a threshold value.

2. The high safety transformer according to claim 1, characterized in that the monitoring mechanism further includes a collector; the collector is cylindrical; one end face of the collector is provided with an input cavity and an output cavity, the input cavity and the output cavity extend along the axial direction of the collector and are arranged at intervals; the bottom ends of the input cavity and the output cavity are communicated, the input cavity and the output cavity constitute a collection cavity for collecting insulating oil, and a plurality of collection cavities are uniformly and interval arranged along the circumference of the collector; The collector is rotationally fitted to the base, and the rotational axis of the collector is arranged coaxially with the central axis of the base; one end surface of the collector is attached to the surface of the base, and the end surface of the collector and the surface of the base are rotationally sealed to enable the base to seal the input cavity and the output cavity. The drive wheel is drivingly fitted to the collector through an incomplete gear intermittent mechanism, so that the collector can rotate by a preset angle after the drive wheel rotates by a preset number of turns. The output flow channel comprises a first flow channel section and a second flow channel section; the filter assembly and the visual assembly are arranged in the second flow channel section. The first flow channel section is in communication with the containing cavity, and the outlet end of the second flow channel section is in communication with the oil tank; one end of the first flow channel section away from the containing cavity 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 attached, so that the first flow channel section can be in communication with the input cavity of one of the collection cavities, and the second flow channel section can be in communication with the output cavity of the collection cavity; wherein, each time the collector rotates by the preset angle, the first flow channel section and the second flow channel section are in communication with the next collection cavity.

3. The high safety transformer according to claim 2, characterized in that An oil hole in communication with the input cavity or the output cavity is arranged in the end surface of the collector away from the base, and a plugging member for sealing the oil hole is detachably fitted to the oil hole.

4. The high safety transformer according to claim 3, characterized in that A screw rod is fixedly connected to the side of the plugging member away from the collector, the screw rod is arranged along the axial direction of the collector, and a matching sleeve is threadedly fitted to the screw rod, the matching sleeve has an external gear ring. The base is further provided with a transmission gear, and the transmission gear is drivingly fitted to the drive wheel; the matching sleeve corresponding to the collection cavity in communication with the output flow channel is engaged with the transmission gear; each time the collector rotates by the preset angle, the transmission gear is engaged with the matching sleeve corresponding to the next collection cavity; Before the collection cavity is in communication with the output flow channel, the matching sleeve is located at one end of the screw rod; when the collection cavity is in communication with the output flow channel, the matching sleeve corresponding to the collection cavity is engaged with and driven by the transmission gear, so that the matching sleeve moves towards the other end of the screw rod and is separated 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 towards the top of the oil tank.

6. The high safety transformer according to claim 1, characterized in that, The visual assembly is provided 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 according to the color of the insulating oil. When the insulating oil is slightly transparent and light yellow, the processor prompts that the insulating oil is normal; when the insulating oil is light red, the processor prompts that the quality of the insulating oil starts to deteriorate; when the insulating oil is brown, tan or black, the processor prompts that the insulating oil is severely deteriorated; when the insulating oil is green, the processor prompts that the color of the insulating oil is abnormally changed.

8. The high safety transformer according to claim 1, characterized in that, An installation groove is arranged in the side wall of the containing cavity away from the input flow channel and the output flow channel, and the drive wheel is installed in the installation groove.

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

10. The high safety transformer according to claim 9, characterized in that The visual component is inlaid in an end wall of the diameter expanding section close to the containing cavity.

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