A circulating cooling oil-immersed power transformer

Abstract

This invention provides a circulating-cooled oil-immersed power transformer, relating to the technical field of oil-immersed power transformers, including a support mechanism; two sets of connecting mechanisms are installed on the support mechanism; two sets of anti-shifting mechanisms are installed on the support mechanism, and the outer ends of the two sets of anti-shifting mechanisms are in contact with the two sets of connecting mechanisms; a power transformer body is installed on the top of the support mechanism, and a circulating cooling mechanism is installed on the outside of the power transformer body; a multi-functional mechanism is installed on the top of the support mechanism, and the multi-functional mechanism is located above the power transformer body; a driving mechanism is installed on the support mechanism; this invention enables the power transformer body to be positioned at the center of the two supporting crossbars, making the force on the two supporting crossbars more even; it solves the problem that the power transformer is prone to positional deviation after installation, resulting in uneven force on the installation structure.

Description

Technical Field

[0001] This invention belongs to the technical field of oil-immersed power transformers, and more specifically, relates to a circulating cooling oil-immersed power transformer. Background Technology

[0002] Oil-immersed power transformers are electrical devices that use mineral insulating oil as the cooling and insulating medium and are widely used in power transmission and distribution systems. Their core consists of an iron core and windings, and the oil tank is filled with transformer oil. These transformers have the characteristics of good insulation performance, strong overload capacity, and stable operation. Compared with dry-type transformers, they are lower in cost and more suitable for large-capacity scenarios. They are mainly used in substations, industrial and mining enterprises, and other places, and are key equipment for voltage transformation and power distribution in power systems.

[0003] The oil-immersed power transformers currently in use still have the following problems:

[0004] 1. Generally, there is a lack of corresponding installation structure, which makes it inconvenient to quickly connect with utility poles of different spacings. In addition, the power transformer is prone to positional deviation after installation, resulting in uneven stress on the installation structure.

[0005] 2. The insulating oil is usually located inside the power transformer and cannot be circulated and cooled by the heat sink, which reduces the heat dissipation effect of the power transformer.

[0006] 3. When changing the insulating oil, the remaining insulating oil cannot clean the impurities on the inner wall of the power transformer, affecting the replacement effect; and it is inconvenient for staff to quickly clean the heat sink of the power transformer, increasing the difficulty of cleaning the heat sink of the power transformer. Summary of the Invention

[0007] This disclosure relates to a circulating-cooled oil-immersed power transformer, which includes a support mechanism, a connection mechanism, an anti-shifting mechanism, a circulating cooling mechanism, a multi-functional mechanism, and a drive mechanism. It ensures the power transformer body is positioned at the center of two support crossbars, resulting in more even force distribution on the two crossbars. It achieves circulating cooling of the insulating oil, improving the heat dissipation effect of the power transformer body. It also creates a sloshing effect on the insulating oil within the power transformer body, facilitating the removal of impurities from the inner wall of the power transformer body. Furthermore, it allows workers to quickly clean dust from the outer surface of the circulating cooling mechanism, further improving subsequent heat dissipation. This solution addresses the problems of potential positional deviations after power transformer installation, the inability to circulate and cool the insulating oil through the heat sink, the inability to clean impurities from the inner wall of the power transformer using residual insulating oil, and the inconvenience of workers quickly cleaning the heat sink of the power transformer.

[0008] This invention provides a circulating cooling oil-immersed power transformer, including a support mechanism; two sets of connecting mechanisms are installed on the support mechanism; two sets of anti-displacement mechanisms are installed on the support mechanism, and the outer ends of the two sets of anti-displacement mechanisms are in contact with the two sets of connecting mechanisms, the two sets of anti-displacement mechanisms being used to position the left and right sides of the support mechanism;

[0009] The power transformer body is mounted on the top of the support mechanism, and a circulating cooling mechanism is mounted on the outside of the power transformer body; a multi-functional mechanism is mounted on the top of the support mechanism, and the multi-functional mechanism is located above the power transformer body. The multi-functional mechanism is used to improve the service life of some parts of the power transformer body, and the multi-functional mechanism is also used to clean the circulating cooling mechanism.

[0010] The support mechanism is equipped with a drive mechanism, which is used to push the power transformer body to move upward. The drive mechanism is also used to move the multi-functional mechanism.

[0011] In at least some embodiments, the support mechanism includes: a support crossbar, a connecting reinforcement frame, and a circular guide rod; there are two support crossbars; there are two connecting reinforcement frames, and the two connecting reinforcement frames are installed on the inner side of the two support crossbars by screws; there are four circular guide rods, and the four circular guide rods are fixedly installed on the two support crossbars.

[0012] In at least some embodiments, the support mechanism further includes: a movable support base and helical springs A; the movable support base is slidably mounted on the outside of four circular guide rods; there are four helical springs A in total, and the four helical springs A are sleeved on the outside of the four circular guide rods, and the four helical springs A are located between the two support crossbars and the movable support base.

[0013] In at least some embodiments, the connecting mechanism includes: a connecting positioning frame and rubber anti-slip pads; there are two connecting positioning frames, which are slidably mounted on two support crossbars and connected by bolts; there are four rubber anti-slip pads, which are fixedly mounted on the inner walls of the two connecting positioning frames.

[0014] In at least some embodiments, the anti-shifting mechanism includes: an anti-shifting adjustment plate and an anti-shifting threaded pin; the anti-shifting adjustment plate is inserted into a corresponding connecting reinforcement frame; the anti-shifting threaded pin is threadedly connected to the anti-shifting adjustment plate, and the outer end of the anti-shifting threaded pin contacts the inner connecting positioning frame.

[0015] In at least some embodiments, the circulating cooling mechanism includes: a circulating cooling housing and a circulating pump; two circulating cooling housings are provided, and the two circulating cooling housings are fixedly installed on the outer wall of the power transformer body; a row of circulating cooling holes is opened on each of the two circulating cooling housings, and the two rows of circulating cooling holes are connected to the insulating oil in the power transformer body; two circulating pumps are provided, and the two circulating pumps are fixedly installed on the right side of the power transformer body; the two circulating pumps are fixedly connected to the two circulating cooling housings through pipes, and the pipes on the two circulating pumps are connected to the insulating oil in the two circulating cooling housings.

[0016] In at least some embodiments, the multifunctional mechanism includes: a circular mounting shaft, a multifunctional cover, and positioning rings A; there are four circular mounting shafts in total, and the four circular mounting shafts are fixedly mounted on two support crossbars; the multifunctional cover is slidably mounted on the outside of the four circular mounting shafts; there are eight positioning rings A in total, and the eight positioning rings A are fixedly mounted on the outside of the four circular mounting shafts, and the four lower positioning rings A are in contact with the multifunctional cover.

[0017] In at least some embodiments, the multifunctional mechanism further includes: a helical spring B, a cleaning pipe, and a U-shaped support frame; there are four helical springs B, which are sleeved on the outside of four circular mounting shafts, and the four helical springs B are located between the four positioning rings A above and the multifunctional cover; there is one ring of cleaning pipe, which is fixedly installed on the top of the multifunctional cover, and a row of cleaning holes is opened on the ring of cleaning pipe; there are two U-shaped support frames, which are fixedly installed on the bottom of the multifunctional cover.

[0018] In at least some embodiments, the drive mechanism includes: a circular mounting rod, a positioning clasp B, a ratchet mechanism, and a push cam A; the circular mounting rod is rotatably mounted on two support crossbars; two positioning clasps B are provided, and the two positioning clasps B are fixedly mounted on the outside of the circular mounting rod, and the inner sides of the two positioning clasps B are in contact with the two support crossbars; the ratchet mechanism is fixedly mounted on the outside of the circular mounting rod; and the push cam A is fixedly mounted on the outside of the ratchet mechanism.

[0019] In at least some embodiments, the drive mechanism further includes: a circular contact wheel, a push cam B, and a drive handle; the circular contact wheel is rotatably mounted on the push cam A; there are two push cams B, and the two push cams B are fixedly mounted on the outside of the circular mounting rod; the two push cams B and the two U-shaped force-bearing frames are located on the same central plane, and the tops of the two push cams B are in contact with the bottoms of the two U-shaped force-bearing frames; the drive handle is fixedly mounted on the front side of the circular mounting rod.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. This invention allows workers to adjust the spacing between the two sets of connecting mechanisms appropriately, making it convenient for installation on utility poles with different spacings; the anti-shift adjustment plate and anti-shift threaded nail limit the left and right positions of the two support crossbars, ensuring that the power transformer body is centered on the two support crossbars, making the force on the two support crossbars more even.

[0022] 2. When the two circulating pumps are working, the insulating oil in the power transformer body enters the front circulating cooling shell through a row of circulating cooling holes on the front side. Then, under the action of the two circulating pumps, it enters the rear circulating cooling shell and then flows back to the power transformer body through a row of circulating cooling holes on the rear side, thus realizing the circulating cooling of the insulating oil and improving the heat dissipation effect of the power transformer body.

[0023] 3. When the operator rotates the drive handle clockwise, the circular contact wheel can push the movable support and the power transformer body upward. When the circular contact wheel separates from the movable support, the movable support and the power transformer body also have multiple reciprocating movements under the action of four helical springs A, which has a shaking effect on the insulating oil in the power transformer body, which is conducive to the falling off of impurities on the inner wall of the power transformer body and improves the replacement effect of the insulating oil.

[0024] In addition, the multi-functional cover provides shade for some components on the upper part of the power transformer body, reduces aging efficiency, and ensures sealing effect. When the operator turns the drive handle counterclockwise, the two push cams B can push the two U-shaped force-bearing frames to move upward. At this time, the push cam A does not follow the circular mounting rod to rotate counterclockwise under the action of the ratchet mechanism, ensuring that the power transformer body will not move when the operator cleans the circulating cooling mechanism.

[0025] In addition, when the protruding parts of the two push cams B separate from the two U-shaped force-bearing frames, the multi-functional cover automatically moves downward under its own weight and the action of the four helical springs B. When the multi-functional cover moves downward automatically under its own weight and the action of the four helical springs B, the air under the multi-functional cover can enter a ring of cleaning pipes, and then be discharged through multiple rows of cleaning holes, which makes it convenient for staff to quickly clean the dust on the outer surface of the circulating cooling mechanism, and helps to improve the subsequent heat dissipation effect. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0027] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0028] In the attached diagram:

[0029] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown;

[0030] Figure 2 A schematic diagram of the support mechanism of the present invention is shown;

[0031] Figure 3 The present invention is shown. Figure 1 A schematic diagram of the top view structure;

[0032] Figure 4 The present invention is shown. Figure 3 A magnified schematic diagram of a portion of region A in the middle;

[0033] Figure 5 This diagram shows the disassembled structure of the power transformer body and the circulating cooling mechanism of the present invention.

[0034] Figure 6 A schematic diagram of the structure of the multifunctional mechanism of the present invention is shown;

[0035] Figure 7 The present invention is shown. Figure 6 A magnified schematic diagram of a portion of region B in the middle;

[0036] Figure 8 The present invention is shown. Figure 1 A schematic diagram of the bottom view structure;

[0037] Figure 9 A schematic diagram of the drive mechanism of the present invention is shown;

[0038] Figure 10 The present invention is shown. Figure 8 A magnified schematic diagram of the structure of region C in the middle.

[0039] List of reference numerals in the attached diagram:

[0040] 100. Support mechanism; 101. Support crossbar; 102. Connecting and reinforcing frame; 103. Circular guide rod; 104. Movable support base; 105. Helical spring A;

[0041] 200. Connecting mechanism; 201. Connecting positioning frame; 202. Rubber anti-slip pad;

[0042] 300. Anti-slip mechanism; 301. Anti-slip adjusting plate; 302. Anti-slip threaded nail;

[0043] 400. Power transformer body;

[0044] 500. Circulating cooling mechanism; 501. Circulating cooling housing; 5011. Circulating cooling holes; 502. Circulating pump;

[0045] 600. Multifunctional mechanism; 601. Circular mounting shaft; 602. Multifunctional cover; 603. Positioning ring A; 604. Helical spring B; 605. Cleaning pipe; 6051. Cleaning round hole; 606. U-shaped force-bearing frame;

[0046] 700. Drive mechanism; 701. Circular mounting rod; 702. Positioning ring B; 703. Ratchet mechanism; 704. Push cam A; 705. Circular contact wheel; 706. Push cam B; 707. Drive handle. Detailed Implementation

[0047] To make the objectives, solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0048] Example: Please refer to Figures 1 to 10 As shown: This invention provides a circulating-cooled oil-immersed power transformer, including a support mechanism 100; two sets of connecting mechanisms 200 are installed on the support mechanism 100; two sets of anti-shifting mechanisms 300 are installed on the support mechanism 100, and the outer ends of the two sets of anti-shifting mechanisms 300 are in contact with the two sets of connecting mechanisms 200, and the two sets of anti-shifting mechanisms 300 are used to position the left and right of the support mechanism 100; a power transformer body 400 is installed on the top of the support mechanism 100, and a circulating cooling mechanism 500 is installed on the outside of the power transformer body 400; a multi-functional mechanism 600 is installed on the top of the support mechanism 100, and the multi-functional mechanism 600 is located above the power transformer body 400, the multi-functional mechanism 600 is used to improve the service life of some components of the power transformer body 400, and the multi-functional mechanism 600 is also used to clean the circulating cooling mechanism 500; a drive mechanism 700 is installed on the support mechanism 100, the drive mechanism 700 is used to push the power transformer body 400 upward, and the drive mechanism 700 is also used to move the multi-functional mechanism 600.

[0049] In this embodiment of the disclosure, such as Figure 2 , Figure 3 and Figure 4As shown, the support mechanism 100 includes: a support crossbar 101, a connecting reinforcement frame 102, and a circular guide rod 103; there are two support crossbars 101; there are two connecting reinforcement frames 102, and the two connecting reinforcement frames 102 are installed on the inner side of the two support crossbars 101 by screws; there are four circular guide rods 103, and the four circular guide rods 103 are fixedly installed on the two support crossbars 101; the support mechanism 100 also includes: a movable support seat 104 and a helical spring A105; the movable support seat 104 is slidably installed on the outside of the four circular guide rods 103; there are four helical springs A105, and the four helical springs A105 are sleeved on the outside of the four circular guide rods 103, and the four helical springs A105 are located between the two support crossbars 101 and the movable support seat 104;

[0050] The connecting mechanism 200 includes: a connecting positioning frame 201 and a rubber anti-slip pad 202; there are two connecting positioning frames 201, and the two connecting positioning frames 201 are slidably installed on two support crossbars 101, and the two connecting positioning frames 201 are connected by bolts; there are four rubber anti-slip pads 202, and the four rubber anti-slip pads 202 are fixedly installed on the inner wall of the two connecting positioning frames 201.

[0051] The anti-shift mechanism 300 includes: an anti-shift adjustment plate 301 and an anti-shift threaded nail 302; the anti-shift adjustment plate 301 is inserted into the corresponding connecting reinforcement frame 102; the anti-shift threaded nail 302 is threadedly connected to the anti-shift adjustment plate 301, and the outer end of the anti-shift threaded nail 302 contacts the inner connecting positioning frame 201.

[0052] Its specific functions are as follows: Since the two connecting positioning frames 201 are slidably installed on the two supporting crossbars 101, and the two connecting positioning frames 201 are connected by bolts, and four rubber anti-slip pads 202 are fixedly installed on the inner wall of the two connecting positioning frames 201, it is convenient for the staff to adjust the distance between the two sets of connecting mechanisms 200 appropriately, and it is convenient to install on utility poles with different spacings; since the anti-shift adjustment plate 301 is inserted into the corresponding connecting reinforcement frame 102, and the anti-shift threaded nail 302 is threadedly connected to the anti-shift adjustment plate 301, and the outer end of the anti-shift threaded nail 302 contacts the inner connecting positioning frame 201, it plays a limiting role on the left and right positions of the two supporting crossbars 101, so that the power transformer body 400 can be located at the center of the two supporting crossbars 101, and the force on the two supporting crossbars 101 is more even.

[0053] In this embodiment of the disclosure, such as Figure 5As shown, the circulating cooling mechanism 500 includes: a circulating cooling housing 501 and a circulating pump 502; two circulating cooling housings 501 are provided, and the two circulating cooling housings 501 are fixedly installed on the outer wall of the power transformer body 400; a row of circulating cooling holes 5011 is opened on each of the two circulating cooling housings 501, and the two rows of circulating cooling holes 5011 are connected to the insulating oil in the power transformer body 400; two circulating pumps 502 are provided, and the two circulating pumps 502 are fixedly installed on the right side of the power transformer body 400; the two circulating pumps 502 are fixedly connected to the two circulating cooling housings 501 through pipes, and the pipes on the two circulating pumps 502 are connected to the insulating oil in the two circulating cooling housings 501;

[0054] Its specific function is as follows: Since the two rows of circulating cooling holes 5011 are connected to the insulating oil in the power transformer body 400, and the two circulating pumps 502 are fixedly connected to the two circulating cooling shells 501 through pipes, and the pipes on the two circulating pumps 502 are connected to the insulating oil in the two circulating cooling shells 501, when the two circulating pumps 502 are working, the insulating oil in the power transformer body 400 enters the front circulating cooling shell 501 through the first row of circulating cooling holes 5011, and then enters the rear circulating cooling shell 501 under the action of the two circulating pumps 502, and then flows back to the power transformer body 400 through the second row of circulating cooling holes 5011, thus realizing the circulating cooling of the insulating oil and improving the heat dissipation effect of the power transformer body 400.

[0055] In this embodiment of the disclosure, such as Figures 6 to 10 As shown, the multi-functional mechanism 600 includes: four circular mounting shafts 601, a multi-functional cover 602, and positioning rings A603; four circular mounting shafts 601 are provided, and the four circular mounting shafts 601 are fixedly mounted on two support crossbars 101; the multi-functional cover 602 is slidably mounted on the outside of the four circular mounting shafts 601; eight positioning rings A603 are provided, and the eight positioning rings A603 are fixedly mounted on the outside of the four circular mounting shafts 601, with the lower four positioning rings A603 contacting the multi-functional cover 602; the multi-functional mechanism 600 also includes: a helical spring B604 and a cleaning tube. The system includes a channel 605 and a U-shaped support frame 606; four helical springs B604 are provided, and the four helical springs B604 are sleeved on the outside of four circular mounting shafts 601, and the four helical springs B604 are located between the four positioning rings A603 and the multi-functional cover 602 above; a cleaning channel 605 is provided in one circle, and the cleaning channel 605 is fixedly installed on the top of the multi-functional cover 602, and a row of cleaning holes 6051 are opened on the cleaning channel 605; two U-shaped support frames 606 are provided, and the two U-shaped support frames 606 are fixedly installed on the bottom of the multi-functional cover 602;

[0056] The drive mechanism 700 includes: a circular mounting rod 701, a positioning ring B702, a ratchet mechanism 703, and a push cam A704; the circular mounting rod 701 is rotatably mounted on two support crossbars 101; two positioning rings B702 are provided, and the two positioning rings B702 are fixedly mounted on the outside of the circular mounting rod 701, and the inner sides of the two positioning rings B702 are in contact with the two support crossbars 101; the ratchet mechanism 703 is fixedly mounted on the outside of the circular mounting rod 701; the push cam A704 is fixedly mounted on the outside of the ratchet mechanism 703. The drive mechanism 700 further includes: a circular contact wheel 705, a push cam B706, and a drive handle 707; the circular contact wheel 705 is rotatably mounted on the push cam A704; there are two push cams B706, and the two push cams B706 are fixedly mounted on the outside of the circular mounting rod 701; the two push cams B706 and the two U-shaped force-bearing frames 606 are located on the same central plane, and the tops of the two push cams B706 are in contact with the bottoms of the two U-shaped force-bearing frames 606; the drive handle 707 is fixedly mounted on the front side of the circular mounting rod 701;

[0057] Its specific function is as follows: Since the ratchet mechanism 703 is fixedly installed on the outside of the circular mounting rod 701, and the push cam A704 is fixedly installed on the outside of the ratchet mechanism 703, and the circular contact wheel 705 is rotatably installed on the push cam A704, when the operator rotates the drive handle 707 clockwise, the circular contact wheel 705 can push the movable support 104 and the power transformer body 400 upwards; and since the movable support 104 is slidably installed on the outside of the four circular guide rods 103, and the four helical springs A105 are sleeved... The four circular guide rods 103 are located outside the four helical springs A105, which are located between the two support crossbars 101 and the movable support seat 104. When the circular contact wheel 705 is separated from the movable support seat 104, the movable support seat 104 and the power transformer body 400 have a reciprocating movement effect under the action of the four helical springs A105. This has a shaking effect on the insulating oil in the power transformer body 400, which is conducive to the falling off of impurities on the inner wall of the power transformer body 400 and improves the replacement effect of the insulating oil.

[0058] Furthermore, because the four circular mounting shafts 601 are fixedly mounted on the two supporting crossbars 101, and the multi-functional cover 602 is slidably mounted on the outside of the four circular mounting shafts 601, and the four positioning rings A603 below contact the multi-functional cover 602, it provides a sunshade effect for some components above the power transformer body 400, reduces aging efficiency, and ensures sealing effect; also, because the two U-shaped force-bearing frames 606 are fixedly mounted on the bottom of the multi-functional cover 602, and the two pushing cams B706 are located at the same position as the two U-shaped force-bearing frames 606... A central plane, and the tops of the two push cams B706 contact the bottoms of the two U-shaped force-bearing frames 606. When the operator rotates the drive handle 707 counterclockwise, the two push cams B706 can push the two U-shaped force-bearing frames 606 upward. At this time, the push cam A704 does not follow the circular mounting rod 701 to rotate counterclockwise under the action of the ratchet mechanism 703, ensuring that the power transformer body 400 will not move when the operator cleans the circulating cooling mechanism 500, making it easier to clean the circulating cooling mechanism 500.

[0059] Furthermore, since the four helical springs B604 are sleeved on the outside of the four circular mounting shafts 601, and the four helical springs B604 are located between the four positioning rings A603 and the multi-functional cover 602 above, when the protruding parts of the two push cams B706 separate from the two U-shaped force-bearing frames 606, the multi-functional cover 602 automatically moves downward under its own weight and the action of the four helical springs B604; and since a ring of cleaning pipes 605 is fixedly installed on the top of the multi-functional cover 602, and a row of cleaning holes 6051 are opened on the ring of cleaning pipes 605, when the multi-functional cover 602 moves downward automatically under its own weight and the action of the four helical springs B604, the air below the multi-functional cover 602 can enter the ring of cleaning pipes 605, and then be discharged through the multiple rows of cleaning holes 6051, which facilitates the staff to quickly clean the dust on the outer surface of the circulating cooling mechanism 500, and is conducive to improving the subsequent heat dissipation effect.

[0060] The specific usage and function of this embodiment are as follows:

[0061] In use, the operator first removes the two outer connecting positioning brackets 201, then tilts the two supporting crossbars 101 at a certain angle, and places them between the two utility poles. Next, the operator connects the two sets of connecting mechanisms 200 to the two utility poles using a wrench and bolts, allowing for appropriate adjustment of the spacing between the two sets of connecting mechanisms 200 for installation on utility poles with different spacing. Then, the two anti-slip adjustment plates 301 are inserted into the appropriate positions on the two connecting reinforcement brackets 102. The two anti-slip threaded nails 302 are then rotated using a wrench, causing their outer ends to contact the two inner connecting positioning brackets 201, thus limiting the lateral position of the two supporting crossbars 101 and preventing the power transformer from shifting. The transformer body 400 is positioned at the center of the two support crossbars 101, making the force on the two support crossbars 101 more even. When the two circulating pumps 502 are working, the insulating oil in the power transformer body 400 enters the front circulating cooling shell 501 through a row of circulating cooling holes 5011 on the front side, and then enters the rear circulating cooling shell 501 under the action of the two circulating pumps 502. Then, it flows back to the power transformer body 400 through a row of circulating cooling holes 5011 on the rear side, realizing the circulating cooling of the insulating oil and improving the heat dissipation effect of the power transformer body 400. The multi-functional cover 602 provides a sunshade effect for some components above the power transformer body 400, reduces aging efficiency, and ensures sealing effect.

[0062] When the circulating cooling mechanism 500 needs cleaning, the operator rotates the drive handle 707 counterclockwise. At this time, the two push cams B706 can push the two U-shaped support frames 606 upward. The push cam A704 does not rotate counterclockwise with the circular mounting rod 701 under the action of the ratchet mechanism 703, ensuring that the power transformer body 400 will not move when the operator cleans the circulating cooling mechanism 500. When the protruding parts of the two push cams B706 separate from the two U-shaped support frames 606, the multi-functional cover 602 automatically moves downward under its own weight and the action of the four helical springs B604. When the multi-functional cover 602 automatically moves downward under its own weight and the action of the four helical springs B604, the air under the multi-functional cover 602 can enter a ring of cleaning pipes 605, and then be discharged through multiple rows of cleaning round holes 6051, which facilitates the operator to quickly clean the dust on the outer surface of the circulating cooling mechanism 500 and helps to improve the subsequent heat dissipation effect.

[0063] When the insulating oil in the power transformer body 400 needs to be replaced, the operator first drains half of the insulating oil from the power transformer body 400, then closes the drain valve. Next, the operator turns the drive handle 707 clockwise. At this time, the circular contact wheel 705 pushes the movable support 104 and the power transformer body 400 upwards. When the circular contact wheel 705 separates from the movable support 104, the movable support 104 and the power transformer body 400, under the action of the four helical springs A105, also have a reciprocating movement effect, which shakes the insulating oil in the power transformer body 400, facilitating the removal of impurities from the inner wall of the power transformer body 400 and improving the replacement effect of the insulating oil. Then, the remaining insulating oil is drained completely.

[0064] The following points should be noted in this article:

[0065] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0066] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0067] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A circulating-cooled oil-immersed power transformer, comprising a support mechanism (100); two sets of connecting mechanisms (200) are mounted on the support mechanism (100); characterized in that, Two sets of anti-shift mechanisms (300) are installed on the support mechanism (100), and the outer ends of the two sets of anti-shift mechanisms (300) are in contact with the two sets of connecting mechanisms (200). The two sets of anti-shift mechanisms (300) are used to position the left and right sides of the support mechanism (100). The power transformer body (400) is mounted on the top of the support mechanism (100), and a circulating cooling mechanism (500) is mounted on the outside of the power transformer body (400); a multi-functional mechanism (600) is mounted on the top of the support mechanism (100), and the multi-functional mechanism (600) is located above the power transformer body (400). The multi-functional mechanism (600) is used to improve the service life of some parts of the power transformer body (400), and the multi-functional mechanism (600) is also used to clean the circulating cooling mechanism (500). A drive mechanism (700) is installed on the support mechanism (100). The drive mechanism (700) is used to push the power transformer body (400) to move upward. The drive mechanism (700) is also used to move the multi-functional mechanism (600). The support mechanism (100) includes: a support crossbar (101); the multifunctional mechanism (600) includes: a circular mounting shaft (601), a multifunctional cover (602), and positioning rings A (603); there are four circular mounting shafts (601), and the four circular mounting shafts (601) are fixedly mounted on two support crossbars (101); the multifunctional cover (602) is slidably mounted on the outside of the four circular mounting shafts (601); there are eight positioning rings A (603), and the eight positioning rings A (603) are fixedly mounted on the outside of the four circular mounting shafts (601), and the four lower positioning rings A (603) are in contact with the multifunctional cover (602); the multifunctional mechanism (600) also includes: a spiral Spring B (604), cleaning pipe (605), and U-shaped support frame (606); there are four helical springs B (604), and the four helical springs B (604) are sleeved on the outside of four circular mounting shafts (601), and the four helical springs B (604) are located between the four positioning rings A (603) above and the multi-functional cover (602); there is one ring of cleaning pipe (605), and the ring of cleaning pipe (605) is fixedly installed on the top of the multi-functional cover (602), and a row of cleaning round holes (6051) is opened on the ring of cleaning pipe (605); there are two U-shaped support frames (606), and the two U-shaped support frames (606) are fixedly installed on the bottom of the multi-functional cover (602); The drive mechanism (700) includes: a circular mounting rod (701), a positioning ring B (702), a ratchet mechanism (703), and a push cam A (704); the circular mounting rod (701) is rotatably mounted on two support crossbars (101); two positioning rings B (702) are provided, and the two positioning rings B (702) are fixedly mounted on the outside of the circular mounting rod (701), and the inner sides of the two positioning rings B (702) are in contact with the two support crossbars (101); the ratchet mechanism (703) is fixedly mounted on the outside of the circular mounting rod (701); the push cam A (704) is fixedly mounted on the outside of the ratchet mechanism (703). The drive mechanism (700) further includes: a circular contact wheel (705), a push cam B (706), and a drive handle (707); the circular contact wheel (705) is rotatably mounted on the push cam A (704); there are two push cams B (706), and the two push cams B (706) are fixedly mounted on the outside of the circular mounting rod (701); the two push cams B (706) and the two U-shaped force-bearing frames (606) are located on the same central plane, and the top of the two push cams B (706) contacts the bottom of the two U-shaped force-bearing frames (606); the drive handle (707) is fixedly mounted on the front side of the circular mounting rod (701).

2. The circulating-cooled oil-immersed power transformer according to claim 1, characterized in that, The support mechanism (100) further includes: a connecting reinforcement frame (102) and a circular guide rod (103); there are two supporting crossbars (101); there are two connecting reinforcement frames (102), and the two connecting reinforcement frames (102) are installed on the inner side of the two supporting crossbars (101) by screws; there are four circular guide rods (103), and the four circular guide rods (103) are fixedly installed on the two supporting crossbars (101).

3. A circulating-cooled oil-immersed power transformer according to claim 2, characterized in that, The support mechanism (100) further includes: a movable support base (104) and a helical spring A (105); the movable support base (104) is slidably mounted on the outside of four circular guide rods (103); there are four helical springs A (105), and the four helical springs A (105) are sleeved on the outside of the four circular guide rods (103), and the four helical springs A (105) are located between the two support crossbars (101) and the movable support base (104).

4. A circulating-cooled oil-immersed power transformer according to claim 2, characterized in that, The connecting mechanism (200) includes: a connecting positioning frame (201) and a rubber anti-slip pad (202); there are two connecting positioning frames (201), and the two connecting positioning frames (201) are slidably installed on two support crossbars (101), and the two connecting positioning frames (201) are connected by bolts; there are four rubber anti-slip pads (202), and the four rubber anti-slip pads (202) are fixedly installed on the inner wall of the two connecting positioning frames (201).

5. A circulating-cooled oil-immersed power transformer according to claim 4, characterized in that, The anti-shifting mechanism (300) includes an anti-shifting adjustment plate (301) and an anti-shifting threaded pin (302); the anti-shifting adjustment plate (301) is inserted into the corresponding connecting reinforcement frame (102); the anti-shifting threaded pin (302) is threadedly connected to the anti-shifting adjustment plate (301), and the outer end of the anti-shifting threaded pin (302) contacts the inner connecting positioning frame (201).

6. A circulating-cooled oil-immersed power transformer according to claim 1, characterized in that, The circulating cooling mechanism (500) includes: a circulating cooling housing (501) and a circulating pump (502); there are two circulating cooling housings (501), and the two circulating cooling housings (501) are fixedly installed on the outer wall of the power transformer body (400); a row of circulating cooling holes (5011) is opened on each of the two circulating cooling housings (501), and the two rows of circulating cooling holes (5011) are connected to the insulating oil in the power transformer body (400); there are two circulating pumps (502), and the two circulating pumps (502) are fixedly installed on the right side of the power transformer body (400); the two circulating pumps (502) are fixedly connected to the two circulating cooling housings (501) through pipes, and the pipes on the two circulating pumps (502) are connected to the insulating oil in the two circulating cooling housings (501).

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