Transformer on-load voltage regulation switch core cleaning auxiliary device and construction method

Abstract

The present invention discloses a transformer on-load voltage-adjusting switch core cleaning auxiliary device and construction method, wherein: the device is composed of a cover assembly, a rotating platform and an oil pan, the cover assembly is composed of an upper cover and a lower cover, and the bottom of the upper cover and the upper end of the lower cover are plugged together; the rotating platform is composed of a supporting platform, a full-bead turntable and a base, an oil pan is arranged outside the rotating platform, and the upper end of the oil pan is located above the rotating platform; an ear lift is arranged outside the upper cover, and a supporting block is arranged outside the reinforcing ring at the bottom of the lower cover. The present invention can quickly clean the oil stains on the internal and external accessories of the transformer on-load voltage-adjusting switch core, avoid secondary pollution, effectively reduce the labor intensity of operators, improve labor efficiency and maintenance quality, and effectively shorten the power outage time of the transformer, and improve the safety and reliability of power grid operation.

Description

Technical field:

[0002] The invention relates to a device for preventing oil from splashing during the flushing process of a transformer on-load voltage-regulating switching switch core, and in particular to an auxiliary device for cleaning the transformer on-load voltage-regulating switching switch core and a construction method. Background technology:

[0004] At present, the M-series on-load tap-changing switches of transformer substations will generate arcs when switching load currents, causing wear of the switch contacts and deterioration of the insulating oil quality. A large amount of oil stains will be generated day by day and adhere to the components inside and outside the switch core. When the electrical properties of the insulating oil in the oil chamber of the on-load tap-changing switch are unqualified, the switch core should be checked and replaced with qualified insulating oil according to the maintenance plan; but when cleaning the switch core, due to the compact structure and narrow gaps of the components inside the switch core, it is impossible to use a brush or lint-free cloth to reach in for thorough cleaning, and the flushing method of pouring with an oil pot will cause oil stars to splash everywhere. The oil stars splash onto other parts of the transformer, and the oil stars on other parts need to be cleaned twice. Moreover, the oil stains inside the switch core cannot be completely cleaned; the entire cleaning process is time-consuming and labor-intensive, with high labor intensity and low labor efficiency.

[0005] The existing purely manual cleaning method is time-consuming and laborious, and the transformer power outage time is long, which will affect the safe operation of the power grid. In order to improve this situation, improving the labor efficiency and maintenance quality of the work of cleaning the transformer on-load voltage regulating switch core is the focus. The existing transformer on-load voltage regulating switch core cleaning process has the following defects:

[0006] ① Use a traditional brush or lint-free cloth dipped in clean insulating oil to clean the switch core. The outside or some internal parts of the switch core can be cleaned, but the oil stains on the internal parts of the switch core cannot be cleaned;

[0007] ② When using the oil bottle pouring method for cleaning, when pouring onto the surface of the diverter switch core, oil splashing occurs, and a large amount of oil splashes onto the transformer and its accessories, requiring secondary cleaning of the transformer and its accessories. At the same time, the oil bottle pouring method still cannot completely clean the oil on the internal components of the diverter switch core;

[0008] ③. The pure manual cleaning method is time-consuming and labor-intensive, with high labor intensity and low labor efficiency. At the same time, due to the long power outage time of the transformer, the safety and reliability of the power grid operation mode are seriously affected. Summary of the invention:

[0010] The technical problem to be solved by the present invention is: to overcome the shortcomings of the prior art and provide a transformer on-load voltage regulation switching switch core cleaning auxiliary device and construction method, which can quickly and thoroughly rinse the oil stains on the switch core, prevent oil stars from splashing onto other accessories of the surrounding transformer, avoid secondary pollution, and is easy to use and simple to operate.

[0011] The technical solution adopted by the present invention to solve the technical problem is:

[0012] A transformer on-load voltage-changing switch core cleaning auxiliary device consists of a cover assembly, a rotating platform and an oil pan, wherein the cover assembly consists of an upper cover and a lower cover, the upper cover and the lower cover are two identical covers, and reinforcing ribs are respectively arranged on the outside of the upper cover and the lower cover, the bottoms of the upper cover and the lower cover are respectively connected with reinforcing rings, and the bottom of the upper cover and the upper end of the lower cover are plugged together; a rotating platform is arranged below the lower cover, and the rotating platform consists of a supporting platform, a full-bead turntable and a base, an oil pan is arranged outside the rotating platform, the oil pan is distributed in an inverted cone shape, and the upper end of the oil pan is located above the rotating platform; an ear lift is arranged outside the upper cover, a supporting clamp is arranged outside the reinforcing ring at the bottom of the lower cover, and the lower cover is clamped at the upper port of the oil pan through the supporting clamp.

[0013] The base is composed of an upper frame, a lower frame, a support rod and an extension plate. The upper frame and the lower frame are two identical frames, and support rods are respectively arranged at the four corners between the upper frame and the lower frame; there are four extension plates, which are respectively located in the middle of each outer side surface of the lower frame; and the circular cross-section formed by the four extension plates matches the inner diameter of the bottom of the oil pan.

[0014] The support platform is distributed in a disc shape, and the inner diameter of the support platform is larger than the inner diameter of the reinforcement ring; the upper port of the oil basin is located above the support platform, and the inner diameter of the support platform is smaller than the inner diameter of the upper port of the oil basin; a full-bead turntable is welded at the bottom of the support platform, and the full-bead turntable is fixedly connected to the top of the base.

[0015] The upper cover body and the lower cover body are both in the shape of transparent columns with two ends connected, and annular reinforcing ribs are respectively arranged at the top, the bottom and the position 3 cm below the top of the upper cover body and the lower cover body.

[0016] The inner diameter of the reinforcing ring is smaller than the inner diameters of the upper cover body and the lower cover body. The lower end of the upper cover body is inserted into the upper end of the upper cover body and is limited by reinforcing ribs.

[0017] There are two ear hooks, which are symmetrically distributed in the middle of the outer wall of the upper cover.

[0018] There are four support blocks evenly distributed on the outer wall of the reinforcement ring at the bottom of the lower cover body. There are gaps between the bottom of the reinforcement ring at the bottom of the lower cover body and the support platform and the upper port of the oil pan.

[0019] The construction method of the transformer on-load voltage regulation switch core cleaning auxiliary device comprises the following steps:

[0020] 1) Place the cover assembly, rotating platform and oil pan on the top of the transformer or on the ground according to work needs;

[0021] 2) Place the rotating platform in the oil pan, lift the transfer switch core out of the transformer transfer switch oil chamber, and place it vertically on the supporting platform.

[0022] 3) Sleeve the upper cover and the lower cover on the outside of the switch core, plug the upper cover and the lower cover together, and finally clamp the cover at the upper port of the oil pan through the support block;

[0023] 4) Use the oil injection machine and the oil pipe to flush the clean insulating oil from the inlet of the upper cover to the top of the switch core and the components in the top pores. During the flushing process, the switch core can be manually rotated and all components can be fully flushed;

[0024] 5) When the insulating oil depth in the oil basin is in the middle of the oil basin, stop top flushing and remove the upper cover from the supporting platform;

[0025] 6) Pass the oil inlet pipe of the oil injection machine through the gap between the lower cover and the top of the oil pan, put the oil inlet pipe into the oil pan, and put it deep into the insulating oil;

[0026] 7) Start the oil filling machine again, and the insulating oil in the oil basin will flush the middle, bottom and internal parts of the diverter switch core. During the flushing process, the diverter switch core can be rotated to fully flush all parts;

[0027] 8) Stop flushing after 2 minutes and use an oiler to drain the used insulating oil in the oil basin.

[0028] 9) Start the oil injection machine and use clean insulating oil to flush the middle, bottom and internal parts of the diverter switch core again. During the flushing process, the diverter switch core can be rotated to fully flush all parts;

[0029] 10) When the switch core rotates one circle, it can stop and the switch core is fully flushed;

[0030] 11) Take off the upper cover and the lower cover to check the switch core, and rotate the switch core for inspection.

[0031] The positive beneficial effects of the present invention are:

[0032] 1. When the present invention is used, a large amount of insulating oil is quickly flushed to various components inside and outside the transformer on-load voltage-changing switch core, and the oil stains adhering to various components can be thoroughly washed away by using a rotating platform.

[0033] 2. The present invention provides an upper cover body and a lower cover body, and the upper cover body and the lower cover body are plugged together. When in use, the object to be cleaned is placed on the supporting platform, and the upper cover body and the lower cover body are sleeved on the outside of the object to be cleaned to prevent oil stars from splashing onto other accessories.

[0034] 3. The upper port of the oil pan of the present invention is located above the supporting platform. When in use, the insulating oil of the transformer flushed on the switching switch core returns to the oil pan, so that there is no oil accumulation on the transformer on-load voltage-adjusting switching switch core, avoiding secondary pollution.

[0035] 4. The present invention can simply and quickly clean the oil stains on the internal and external accessories of the transformer on-load voltage-changing switch core, avoid oil splashing onto other accessories of the transformer, effectively reduce the labor intensity of operators, improve labor efficiency and maintenance quality, and effectively shorten the power outage time of the transformer, thereby improving the safety and reliability of power grid operation. Description of the drawings:

[0037] Figure 1 is the distribution diagram of the present invention;

[0038] Figure 2 It is a usage state diagram of the present invention;

[0039] Figure 3 It is a schematic diagram of the local structure when the present invention is used.

[0040] Wherein, A represents the core of the transformer on-load voltage regulation switch. Specific implementation method:

[0042] The present invention will be further explained and illustrated below in conjunction with the accompanying drawings:

[0043] Example 1: See Figure 1-Figure 3, a transformer on-load voltage-changing switch core cleaning auxiliary device, composed of a cover assembly, a rotating platform and an oil pan 13, the cover assembly consists of an upper cover 1 and a lower cover 2, the upper cover 1 and the lower cover 2 are two identical covers, and reinforcing ribs 4 are respectively arranged on the outside of the upper cover 1 and the lower cover 2, the bottom of the upper cover 1 and the lower cover 2 are respectively connected with reinforcing rings 5, and the bottom of the upper cover 1 and the upper end of the lower cover 2 are plugged together; a rotating platform is arranged below the lower cover 2, and the rotating platform is composed of a supporting platform 7, a full-bead turntable 8 and a base, an oil pan 13 is arranged outside the rotating platform, the oil pan 13 is distributed in an inverted cone shape, and the upper end of the oil pan 13 is located above the rotating platform; an ear lift 3 is arranged outside the upper cover 1, a supporting block 6 is arranged outside the reinforcing ring 5 at the bottom of the lower cover 2, and the lower cover is clamped at the upper port of the oil pan through the supporting block.

[0044] The base is composed of an upper frame 9, a lower frame 10, a support rod 11 and an extension plate 12. The upper frame 9 and the lower frame 10 are two identical frames, and support rods 11 are respectively arranged at the four corners between the upper frame 9 and the lower frame 10; there are four extension plates 12, which are respectively located in the middle of each outer side surface of the lower frame 10; and the circular cross-section formed by the four extension plates 12 matches the inner diameter of the bottom of the oil pan 13.

[0045] The support platform 7 is distributed in a disc shape, and the inner diameter of the support platform 7 is larger than the inner diameter of the reinforcing ring 5; the upper port of the oil basin 13 is located above the support platform 7, and the inner diameter of the support platform 7 is smaller than the inner diameter of the upper port of the oil basin 13; a full-bead turntable 8 is welded at the bottom of the support platform 7, and the full-bead turntable 8 is fixedly connected to the top of the base.

[0046] The upper cover body 1 and the lower cover body 2 are both in the shape of transparent columns with two ends connected. Annular reinforcement ribs 4 are respectively provided at the top, the bottom and the position 3 cm below the top of the upper cover body 1 and the lower cover body 2.

[0047] The inner diameter of the reinforcing ring 5 is smaller than the inner diameters of the upper cover body 1 and the lower cover body 2 . The lower end of the upper cover body 1 is inserted into the upper end of the upper cover body 2 and is limited by the reinforcing ribs 4 .

[0048] There are two ear hooks 3 symmetrically distributed in the middle of the outer wall of the upper cover body 1 .

[0049] There are four supporting blocks, which are evenly distributed on the outer wall of the reinforcement ring at the bottom of the lower cover body. There are gaps between the bottom of the reinforcement ring at the bottom of the lower cover body and the supporting platform and the upper port of the oil pan.

[0050] In the above description, the lower end of the upper cover body is inserted into the upper port of the lower cover body, and the reinforcing ribs located at the lower part of the upper cover body are clamped together with the reinforcing ribs of the upper port of the lower cover body to play a limiting role.

[0051] In the above description, the supporting block at the lower part of the lower cover body is just stuck at the edge of the upper port of the oil pan, playing the role of fixing the cover body.

[0052] In the above description, the inner side of the support block extends below the bottom of the lower cover body. When the lower cover body is placed on the upper port of the oil pan, there is a gap between the lower port of the lower cover body and the upper port of the oil pan, and the gap is large enough for the oil inlet pipe to be inserted; at the same time, there is no contact between the bottom of the lower cover body and the support platform.

[0053] In the above description, the full bead turntable is composed of two square turntables with circular grooves, which clamp the round beads to form the turntable.

[0054] Embodiment 2: The construction method of the above transformer on-load voltage regulation switch core cleaning auxiliary device is as follows:

[0055] 1) According to work needs, place the cover assembly, rotating platform, and oil pan 13 on the top of the transformer or on the ground;

[0056] 2) Place the rotating platform in the oil pan, lift the transfer switch core out of the transformer transfer switch oil chamber, and place it vertically on the supporting platform.

[0057] 3) Sleeve the upper cover and the lower cover on the outside of the switch core, plug the upper cover and the lower cover together, and finally clamp the cover at the upper port of the oil pan through the support clamp block;

[0058] 4) Using the principle of a car washing machine, use an oiling machine and an oil pipe to flush clean insulating oil from the entrance of the upper cover to the top of the switch core and the components in the top pores. During the flushing process, the switch core can be manually rotated to fully flush all components;

[0059] 5) When the insulating oil depth in the oil basin is in the middle of the oil basin, stop top flushing and remove the upper cover from the supporting platform;

[0060] 6) Pass the oil inlet pipe of the oil injection machine through the gap between the lower cover and the top of the oil pan, put the oil inlet pipe into the oil pan, and put it deep into the insulating oil;

[0061] 7) Start the oil filling machine again, and the insulating oil in the oil basin will flush the middle, bottom and internal parts of the diverter switch core. During the flushing process, the diverter switch core can be rotated to fully flush all parts;

[0062] 8) Stop flushing after 2 minutes and use an oiler to drain the used insulating oil in the oil basin.

[0063] 9) Start the oil injection machine and use clean insulating oil to flush the middle, bottom and internal parts of the diverter switch core again. During the flushing process, the diverter switch core can be rotated to fully flush all parts;

[0064] 10) When the switch core rotates one circle, it can stop and the switch core is fully flushed;

[0065] 11) Take off the upper cover and the lower cover to check the switch core, and rotate the switch core for inspection.

[0066] When the present invention is used, an oiling machine is used to quickly flush insulating oil in large quantities to various components inside and outside the core of the transformer on-load voltage-regulating switching switch, so that the oil stains adhering thereto are thoroughly washed away, and oil stars can be prevented from splashing onto other accessories of the surrounding transformer, thereby avoiding secondary pollution. By arranging a rotating platform, it is convenient for cleaning and inspection; at the same time, the upper port of the oil basin is located above the supporting platform, which can ensure that the transformer oil flushed on the switching switch core returns to the oil basin, thereby keeping the transformer on-load voltage-regulating switching switch core free of oil accumulation.

[0067] The present invention can simply and quickly clean the oil stains on the internal and external accessories of the transformer on-load voltage regulating switch core without causing oil stars to splash onto other accessories of the transformer, effectively reducing the labor intensity of operators, improving labor efficiency and maintenance quality, and effectively shortening the power outage time of the transformer, thereby improving the safety and reliability of power grid operation.

Claims

1. A transformer on-load voltage-changing switch core cleaning auxiliary device, comprising a cover assembly, a rotating platform and an oil pan (13), characterized in that: The cover assembly is composed of an upper cover (1) and a lower cover (2), wherein the upper cover (1) and the lower cover (2) are two identical covers, and reinforcing ribs (4) are respectively arranged on the outside of the upper cover (1) and the lower cover (2), and the bottoms of the upper cover (1) and the lower cover (2) are respectively connected with reinforcing rings (5), and the bottom of the upper cover (1) and the upper end of the lower cover (2) are plugged together; a rotating platform is arranged below the lower cover (2), and the rotating platform is The invention is composed of a supporting platform (7), a full bead turntable (8) and a base, an oil pan (13) is arranged outside the rotating platform, the oil pan (13) is distributed in an inverted cone shape, and the upper end of the oil pan (13) is located above the rotating platform; an ear lift (3) is arranged outside the upper cover body (1), a supporting clamp (6) is arranged outside the reinforcing ring (5) at the bottom of the lower cover body (2), and the lower cover body (2) is clamped at the upper end of the oil pan (13) through the supporting clamp (6); The base is composed of an upper frame (9), a lower frame (10), a support rod (11) and an extension plate (12); the upper frame (9) and the lower frame (10) are two identical frames, and support rods (11) are respectively provided at the four corners between the upper frame (9) and the lower frame (10); there are four extension plates (12), which are respectively located at the middle of each outer side surface of the lower frame (10); and the circular cross-section formed by the four extension plates (12) matches the inner diameter of the bottom of the oil pan (13); the support platform (7) is distributed in a disc shape, and the diameter of the support platform (7) is The diameter of the reinforcing ring (5) is larger than the inner diameter of the reinforcing ring (5); the upper port of the oil pan (13) is located above the supporting platform (7), and the diameter of the supporting platform (7) is smaller than the inner diameter of the upper port of the oil pan (13); a full-bead turntable (8) is welded to the bottom of the supporting platform (7), and the full-bead turntable (8) is fixedly connected to the top of the base; there are four supporting blocks (6), which are evenly distributed on the outer wall of the reinforcing ring (5) at the bottom of the lower cover body (2), and there are gaps between the bottom of the reinforcing ring located at the bottom of the lower cover body (2) and the supporting platform (7) and the upper port of the oil pan (13).

2. The transformer on-load voltage regulation switch core cleaning auxiliary device according to claim 1 is characterized in that: The upper cover body (1) and the lower cover body (2) are both in the shape of transparent columns with two ends connected, and reinforcing ribs (4) distributed in annular shapes are respectively provided at the top end, the bottom end and the position 3 cm below the top end of the upper cover body (1) and the lower cover body (2).

3. The transformer on-load voltage regulation switch core cleaning auxiliary device according to claim 1 is characterized in that: The inner diameter of the reinforcing ring (5) is smaller than the inner diameters of the upper cover body (1) and the lower cover body (2); the lower end of the upper cover body (1) is inserted into the upper end of the lower cover body (2) and is limited by the reinforcing ribs (4).

4. The transformer on-load voltage regulation switch core cleaning auxiliary device according to claim 1 is characterized in that: There are two ear hooks (3) which are symmetrically distributed in the middle of the outer wall of the upper cover body (1).

5. The construction method of the transformer on-load voltage regulation switch core cleaning auxiliary device according to any one of claims 1 to 4, characterized in that: The steps include: 1) According to work requirements, place the cover assembly, rotating platform, and oil pan (13) on the top of the transformer or on the ground; 2) Place the rotating platform in the oil pan (13), lift the switch core out of the transformer switch oil chamber, and place it vertically on the support platform (7); 3) The upper cover body (1) and the lower cover body (2) are sleeved on the outside of the switch core body, and the upper cover body (1) and the lower cover body (2) are plugged together, and finally the cover body is clamped at the upper port of the oil pan (13) through the support clamp block (6); 4) Use an oil injection machine and an oil delivery pipe to flush clean insulating oil from the inlet of the upper cover (1) to the top of the switch core and the components in the top pores. During the flushing process, the switch core (A) can be manually rotated to fully flush all the components; 5) When the insulating oil depth in the oil basin (13) is in the middle of the oil basin, stop top flushing and remove the upper cover (1) from the supporting platform; 6) Pass the oil inlet pipe of the oil injection machine through the gap between the lower cover (2) and the top of the oil pan (13), place the oil inlet pipe into the oil pan, and insert it deep into the insulating oil; 7) Start the oil filling machine again, and the insulating oil in the oil basin will flush the middle, bottom and internal parts of the diverter switch core. During the flushing process, the diverter switch core can be rotated to fully flush all parts; 8) Stop flushing after 2 minutes and use the oil filling machine to drain the used insulating oil in the oil basin; 9) Start the oil injection machine and use clean insulating oil to flush the middle, bottom and internal parts of the diverter switch core again. During the flushing process, the diverter switch core can be rotated to fully flush all parts; 10) When the switch core rotates one circle, it can stop and the switch core is fully flushed; 11) Take off the upper cover and the lower cover to check the switch core, and rotate the switch core for inspection.

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