Three-phase dual-winding transformer high-efficiency air cooling cooling device

Abstract

The application discloses a kind of three-phase double-winding transformer high-efficiency air cooling cooling equipment, including body, the inside of the body is equipped with three-phase double-winding transformer by fixed frame, the inside of the body is also fixedly installed with partition plate, the installation position of the partition plate is located in the side of the three-phase double-winding transformer and the body is divided into three spaces, the side of the partition plate and the top and bottom of the three-phase double-winding transformer fixed frame are all provided with communicating hole and the three spaces are communicated.The application, by driving motor drives each transmission rod movement, the direction of airflow from air inlet pipe to air outlet pipe is guided, since partition plate divides the inner cavity of body into multiple intervals, and each interval is communicated by the communicating hole opened in top or bottom, the air circulation in the inner cavity of body can be more thorough, avoid the appearance of airflow circulation dead angle, realize the transformer omnibearing high-efficiency airflow circulation and heat dissipation effect, ensure the stable operation of transformer.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformer cooling, in particular to a three-phase double-winding transformer efficient air cooling device. BACKGROUND

[0002] When the transformer is running, the heat generated by the loss in the winding and the core must be dissipated in time to prevent overheating and cause insulation damage. For small capacity transformers, the ratio of the external surface area to the transformer volume is relatively large, and self-cooling mode can be used to dissipate heat through radiation and natural convection. The self-cooling mode is suitable for indoor small transformers.

[0003] However, the traditional transformer air cooling device generally circulates air in the whole transformer bin, but the transformer bin is large, and the traditional fan cannot realize large air blowing, so there must be air circulation dead angles leading to heat accumulation, which will cause hidden dangers in the long term. Moreover, most of the current air cooling devices can only achieve preliminary dust removal effect through dust removal filter screen, without water removal effect, and with air circulation, a lot of moisture and dust impurities will accumulate on the surface of the transformer, which will cause short circuit and other serious accidents in the long term if not cleaned in time. SUMMARY

[0004] The purpose of the present application is to solve the problems existing in the prior art and provide a three-phase double-winding transformer efficient air cooling device.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0006] A three-phase double-winding transformer efficient air cooling device, comprising a body, a three-phase double-winding transformer is installed on the inner side of the body through a fixing frame, a partition plate is also fixedly installed on the inner side of the body, the installation position of the partition plate is located on the side of the three-phase double-winding transformer and divides the body into three spaces, the side of the partition plate and the top and bottom of the three-phase double-winding transformer fixing frame are all provided with communication holes to connect the three spaces, an air inlet pipe is fixedly installed on the side of the body, an air outlet pipe is fixedly installed on the other side of the body corresponding to the air inlet pipe, a driving motor is also fixedly installed on the inner side of the body, a first transmission rod is fixedly installed on the output shaft of the driving motor, a second transmission rod, a third transmission rod and a fourth transmission rod are fixedly installed on the inner side of the body through bearings, a fifth transmission rod is installed on the inner side of the body through a fixed installation shaft and a bearing, and a sixth transmission rod is installed on the inner side of the air inlet pipe through a fixed installation shaft and a bearing.

[0007] Preferably, the first transmission rod and the third transmission rod, the first transmission rod and the second transmission rod, the second transmission rod and the sixth transmission rod, the third transmission rod and the fourth transmission rod, and the fourth transmission rod and the fifth transmission rod are all meshed and transmitted by bevel gear sets, and a group of guide vanes are fixedly sleeved on the side wall of each transmission rod, and a group of guide vanes are additionally installed on the top end of the first transmission rod extending to the inside of the air outlet pipe, and the rotation direction of the guide vanes is the direction of guiding the airflow in the inner cavity to the air outlet pipe.

[0008] Preferably, the sixth transmission rod extends to the inside of the air inlet pipe, and the side wall of the sixth transmission rod is fixedly sleeved with an air inlet vane and a water removal screen, the inside of the air inlet pipe is fixedly installed with a speed reducer gear box through a fixed shaft, the top end of the sixth transmission rod is connected with the input end of the speed reducer gear box, the output shaft of the speed reducer gear box is fixedly installed with a guide shaft, the side wall of the guide shaft is movably sleeved with a reset mechanism, the outlet of the air inlet pipe is fixedly installed with a dustproof filter screen, the dustproof filter screen is made of corrosion-resistant and impact-resistant metal material, and the outlet of the air inlet pipe is designed in a horn shape.

[0009] Preferably, the side wall of the air inlet pipe at the position of the water removal screen is provided with an annular raised groove, and the lowest point of the annular raised groove is provided with a drainage channel.

[0010] Preferably, the water removal screen is a plurality of groups of hollow annular spirals, and the water removal screen is made of non-magnetic, waterproof, and ductile metal material;

[0011] The inside of the water removal screen is fixedly installed with two groups of second strong permanent magnets which are symmetrical to each other and have the same magnetic pole setting direction, and the outside wall of the air inlet pipe at the position of the water removal screen is also fixedly installed with two groups of first strong permanent magnets which are symmetrical to each other and have the same magnetic pole setting direction.

[0012] Preferably, the side wall of the guide shaft is provided with two groups of symmetrical rectangular sliding grooves, and the side wall of the guide shaft is also provided with two groups of symmetrical spiral sliding grooves, and the bottom end and the top end of the spiral sliding grooves are respectively connected with the bottom end and the top end of the rectangular sliding grooves.

[0013] Preferably, the reset mechanism includes the reset shaft, the bottom of the reset shaft is fixedly installed with a reset spring, the inside of the reset shaft is fixedly installed with a limiting shaft, and the bottom of the reset shaft is fixedly installed with a striking net plate.

[0014] Preferably, the inner diameter of the reset shaft matches the outer diameter of the guide shaft, the size of the limiting shaft matches the width of the spiral chute and the depth of the rectangular chute, and the top end of the limiting shaft is installed with a ball.

[0015] Compared with the prior art, the application has the following beneficial effects:

[0016] 1. When the device is working, the driving motor is powered on to start, driving each transmission rod to move, driving the guide fan blade and the air inlet fan blade to rotate, guiding the airflow from the air inlet pipe to the direction of the air outlet pipe. Since the partition plate divides the inner cavity of the machine body into multiple intervals, and each interval is connected through the communication hole opened at the top or bottom, compared with the traditional ordinary air cooling or air circulation, the air circulation in the inner cavity of the machine body can be more complete, and the airflow circulation dead angle can be avoided, realizing full-range efficient airflow circulation and heat dissipation effect of the transformer, and ensuring stable operation of the transformer.

[0017] 2. When the external air enters the inner cavity of the machine body through the air inlet pipe, the dust filter screen can remove most of the dust and impurities, and through the rotation of the water removal screen, the moisture and dust in the air can be captured. At the same time, the first strong permanent magnet has a magnetic force on the second strong permanent magnet. When the second strong permanent magnet rotates to approach the minimum distance from the first strong permanent magnet, the two first strong permanent magnets at both ends simultaneously exert an attractive force or a repulsive force on the two corresponding second strong permanent magnets. With the rotation of the water removal screen, the water removal screen is continuously deformed towards the center of the water removal screen, and the water removal screen is continuously deformed. Not only can the contact area between the water removal screen and the passing gas be increased, but also the dust and moisture removal effect is better. With the deformation of the water removal screen, the water removal screen will vibrate, which is beneficial to the falling of the attached dust and impurities, preventing the accumulation of impurities and moisture on the surface of the water removal screen. Compared with the traditional air cooling cooling equipment, not only can it realize self-cleaning, but also it can remove dust and impurities in the air more thoroughly, and can remove moisture in the air to prevent moisture from entering the three-phase double-winding transformer, avoid the phenomenon of transformer short circuit caused by moisture accumulation in the machine body, ensure the stable operation of the transformer, and reduce the operation and maintenance cost of the transformer.

[0018] 3, the sixth transmission rod rotates, through the reduction gear box drive guide shaft slowly rotates, through the rotation of the guide shaft, drive reset shaft through the limiting shaft along the spiral chute sliding, reset spring compression, movement to the reset spring top when the limiting shaft slides into the rectangular slide, through the reset spring restoring force drive limiting shaft to the lowest point of the rectangular slide, continue to cycle from the reset spring bottom end sliding, at the same time, the reset shaft under the action of the reset spring restoring force drive the impact net board rebound and dust filter screen impact, through the shock of dust filter screen can remove the dust and impurities attached to the surface of the dust filter screen, at the same time, the dust and impurities falling through the air inlet pipe outlet horn shaped chute sliding, compared with the traditional air cooling equipment, can realize the automatic cleaning of filter screen, and the dust can be automatically discharged, avoid the accumulation of dust, ensure the air circulation of equipment, realize the long-term stable operation of equipment and transformer, reduce the follow-up operation cost of transformer. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The whole structure schematic diagram of a three-phase double-winding transformer high-efficiency air-cooling cooling equipment is provided for the present application.

[0020] Figure 2 The detailed structure schematic diagram of a three-phase double-winding transformer high-efficiency air-cooling cooling equipment is provided for the present application.

[0021] Figure 3 The air inlet pipe structure schematic diagram of a three-phase double-winding transformer high-efficiency air-cooling cooling equipment is provided for the present application.

[0022] Figure 4 The water removal wire screen structure schematic diagram of a three-phase double-winding transformer high-efficiency air-cooling cooling equipment is provided for the present application.

[0023] Figure 5 The guide shaft structure schematic diagram of a three-phase double-winding transformer high-efficiency air-cooling cooling equipment is provided for the present application.

[0024] Figure 6 The reset mechanism structure schematic diagram of a three-phase double-winding transformer high-efficiency air-cooling cooling equipment is provided for the present application.

[0025] In the figure: 1, the body; 2, three-phase double-winding transformer; 3, partition plate; 4, communication hole; 5, air inlet pipe; 6, first transmission rod; 7, second transmission rod; 8, third transmission rod; 9, fourth transmission rod; 10, fifth transmission rod; 11, sixth transmission rod; 12, driving motor; 13, air outlet pipe; 14, guide fan blade; 51, air inlet fan blade; 52, water removal screen; 53, first strong permanent magnet; 54, speed reducer gear box; 55, guide shaft; 56, reset mechanism; 57, dustproof filter screen; 521, second strong permanent magnet; 551, rectangular sliding slot; 552, spiral sliding slot; 561, reset shaft; 562, reset spring; 563, impact screen; 564, limiting shaft. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all.

[0027] Reference Figures 1-6 A three-phase double-winding transformer high-efficiency air cooling cooling equipment, comprising a body 1, a three-phase double-winding transformer 2 is installed on the inner side of the body 1 through a fixed frame, a partition plate 3 is also fixedly installed on the inner side of the body 1, the installation position of the partition plate 3 is located on the side of the three-phase double-winding transformer 2 and divides the body 1 into three spaces, the side of the partition plate 3 and the top and bottom of the fixed frame of the three-phase double-winding transformer 2 are both provided with a communication hole 4 to connect the three spaces, an air inlet pipe 5 is fixedly installed on the side of the body 1, a corresponding air outlet pipe 13 is fixedly installed on the other side of the body 1, a driving motor 12 is also fixedly installed on the inner side of the body 1, a first transmission rod 6 is fixedly installed on the output shaft of the driving motor 12, a second transmission rod 7, a third transmission rod 8, and a fourth transmission rod 9 are fixedly installed on the inner side of the body 1 through bearings, a fifth transmission rod 10 is also installed on the inner side of the body 1 through a fixed installation shaft and a bearing, and a sixth transmission rod 11 is installed on the inner side of the air inlet pipe 5 through a fixed installation shaft and a bearing.

[0028] As Figure 2 The first transmission rod 6 and the third transmission rod 8, the first transmission rod 6 and the second transmission rod 7, the second transmission rod 7 and the sixth transmission rod 11, the third transmission rod 8 and the fourth transmission rod 9, and the fourth transmission rod 9 and the fifth transmission rod 10 are all meshed and transmitted through bevel gear sets, and a group of guide fan blades 14 are fixedly sleeved on the side wall of each transmission rod, a group of guide fan blades 14 are additionally installed on the top end of the first transmission rod 6 extending to the inner side of the air outlet pipe 13, and the rotation direction of the guide fan blades 14 is to guide the airflow in the inner cavity to the direction of the air outlet pipe 13.

[0029] It should be noted that the above-mentioned first transmission rod 6, second transmission rod 7, third transmission rod 8, fourth transmission rod 9, fifth transmission rod 10 and sixth transmission rod 11 are used for rotation.

[0030] As Figure 3 , the sixth transmission rod 11 extends to the inner side of the air inlet pipe 5, and the side wall of the sixth transmission rod 11 is fixedly sleeved with an air inlet fan blade 51, and the side wall of the sixth transmission rod 11 is also fixedly sleeved with a water removal screen 52, and the inner side of the air inlet pipe 5 is fixedly installed with a reduction gear box 54 through a fixed shaft, the top end of the sixth transmission rod 11 is connected with the input end of the reduction gear box 54, the output shaft of the reduction gear box 54 is fixedly installed with a guide shaft 55, the side wall of the guide shaft 55 is movably sleeved with a reset mechanism 56, and the outlet of the air inlet pipe 5 is fixedly installed with a dustproof screen 57, which is made of corrosion-resistant and impact-resistant metal material, and the outlet of the air inlet pipe 5 is designed as a horn.

[0031] As Figure 3 , the side wall of the air inlet pipe 5 is provided with an annular protruding groove at the position of the water removal screen 52, and the lowest point of the annular protruding groove is provided with a drainage channel.

[0032] As Figure 4 , the water removal screen 52 is a plurality of groups of hollow annular spirals, and the water removal screen 52 is made of non-magnetic, waterproof and ductile metal material;

[0033] The inner side of the water removal screen 52 is fixedly installed with two groups of second strong permanent magnets 521 which are symmetrical, and the magnetic poles of the two groups of second strong permanent magnets 521 are arranged in the same direction, and the outer wall of the air inlet pipe 5 is also fixedly installed with two groups of first strong permanent magnets 53 which are symmetrical at the position of the water removal screen 52, and the magnetic poles of the two groups of first strong permanent magnets 53 are also arranged in the same direction.

[0034] As Figure 5 , the side wall of the guide shaft 55 is provided with two groups of symmetrical rectangular sliding grooves 551, and the side wall of the guide shaft 55 is also provided with two groups of symmetrical spiral sliding grooves 552, and the bottom end and the top end of the spiral sliding groove 552 are respectively communicated with the bottom end and the top end of the rectangular sliding groove 551.

[0035] As Figure 6 , the reset mechanism 56 includes a reset shaft 561, the bottom of the reset shaft 561 is fixedly installed with a reset spring 562, the inner side of the reset shaft 561 is fixedly installed with a limiting shaft 564, and the bottom of the reset shaft 561 is fixedly installed with a striking net plate 563.

[0036] As Figure 6The inner diameter of the reset shaft 561 matches the outer diameter of the guide shaft 55, the size of the limiting shaft 564 matches the width of the spiral sliding groove 552 and the depth of the rectangular sliding groove 551, and the top end of the limiting shaft 564 is provided with a ball, and the outer bottom end of the reset shaft 561 is fixedly provided with the impact net plate 563, the size of the impact net plate 563 matches the size of the dustproof filter screen 57, and the impact net plate 563 is made of a corrosion-resistant and impact-resistant light metal material.

[0037] In the application, when the device is working, the driving motor 12 is powered on to start, drive each transmission rod to move, drive the guide fan blade 14 and the air inlet fan blade 51 to rotate, and guide the airflow from the air inlet pipe 5 to the direction of the air outlet pipe 13. Since the partition plate 3 divides the inner cavity of the body 1 into multiple intervals, and each interval is connected through the communication hole 4 opened at the top or the bottom, compared with the traditional ordinary air cooling or air circulation, the air circulation in the inner cavity of the body 1 can be more complete, and the airflow circulation dead angle can be avoided, the full-range efficient airflow circulation and heat dissipation effect of the transformer are realized, and the stable operation of the transformer is ensured.

[0038] When the external air enters the inner cavity of the body 1 through the air inlet pipe 5, the dustproof filter screen 57 can remove most of the dust and impurities, and through the rotation of the water removal wire screen 52, the moisture and dust in the air can be captured. At the same time, the first strong permanent magnet 53 has a magnetic force on the second strong permanent magnet 521. When the second strong permanent magnet 521 rotates to approach the minimum distance from the first strong permanent magnet 53, the two first strong permanent magnets 53 at both ends simultaneously exert an attractive force or a repulsive force on the two corresponding second strong permanent magnets 521. With the rotation of the water removal wire screen 52, the water removal wire screen 52 is continuously deformed towards the center of the water removal wire screen 52, and through the continuous deformation of the water removal wire screen 52, the contact area between the water removal wire screen 52 and the passing gas can be increased, the dust and moisture removal effect is better, and with the deformation of the water removal wire screen 52, the water removal wire screen 52 will vibrate, which is beneficial to the falling of the attached dust and impurities, preventing the accumulation of impurities and moisture on the surface of the water removal wire screen 52. Compared with the traditional air cooling equipment, not only can it realize self-cleaning, but also can remove dust and impurities in the air more thoroughly, and can remove moisture in the air, prevent moisture from entering the three-phase double-winding transformer 2, avoid the phenomenon of transformer short circuit caused by moisture accumulation in the inner cavity of the body 1, ensure the stable operation of the transformer, and reduce the operation and maintenance cost of the transformer.

[0039] When the sixth transmission rod 11 rotates, the guide shaft 55 is driven to rotate slowly through the speed reduction gear box 54. Through the rotation of the guide shaft 55, the reset shaft 561 is driven to slide along the spiral chute 552 through the limiting shaft 564, and the reset spring 562 is compressed. When the reset spring 562 reaches the top end, the limiting shaft 564 slides into the rectangular chute 551. Through the restoring force of the reset spring 562, the limiting shaft 564 is driven to the lowest point of the rectangular chute 551. The cycle continues from the bottom end of the reset spring 562 to slide, and at the same time, the reset shaft 561 drives the impact mesh plate 563 to rebound and collide with the dust filter screen 57 under the restoring force of the reset spring 562. Through the vibration of the dust filter screen 57, the dust and impurities attached to the surface of the dust filter screen 57 can be removed. At the same time, the falling dust and impurities slide through the outlet horn-shaped chute of the air inlet pipe 5. Compared with the traditional air cooling equipment, the automatic cleaning of the filter screen can be realized, and the dust can be automatically discharged, avoiding the accumulation of dust and ensuring the air circulation of the equipment. The long-term stable operation of the equipment and the transformer is realized, and the subsequent operation cost of the transformer is reduced.

[0040] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A high-efficiency air-cooled cooling device for a three-phase double-winding transformer, comprising a body (1), characterized in that, The inner side of the body (1) is provided with a three-phase double-winding transformer (2) through a fixing frame, and a partition plate (3) is also fixedly installed on the inner side of the body (1), the installation position of the partition plate (3) is located on the side of the three-phase double-winding transformer (2) and divides the body (1) into three spaces, the side of the partition plate (3) and the top and bottom of the fixing frame of the three-phase double-winding transformer (2) are provided with communication holes (4) to connect the three spaces, a gas inlet pipe (5) is fixedly installed on the side of the body (1), a gas outlet pipe (13) is fixedly installed on the other side of the body (1) in correspondence, a driving motor (12) is also fixedly installed on the inner side of the body (1), a first transmission rod (6) is fixedly installed on the output shaft of the driving motor (12), a second transmission rod (7), a third transmission rod (8) and a fourth transmission rod (9) are fixedly installed on the inner side of the body (1) through bearings, and a fifth transmission rod (10) is installed on the inner side of the body (1) through a fixed installation shaft and a bearing; The sixth transmission rod (11) extends to the inner side of the gas inlet pipe (5), the side wall of the sixth transmission rod (11) is fixedly sleeved with an air inlet fan blade (51), the side wall of the sixth transmission rod (11) is also fixedly sleeved with a water removal wire mesh (52), a speed reducer gear box (54) is fixedly installed on the inner side of the gas inlet pipe (5) through a fixed shaft, the top end of the sixth transmission rod (11) is connected with the input end of the speed reducer gear box (54), a guide shaft (55) is fixedly installed on the output shaft of the speed reducer gear box (54), a reset mechanism (56) is movably sleeved on the side wall of the guide shaft (55), a dustproof screen (57) is fixedly installed on the outlet of the gas inlet pipe (5), the dustproof screen (57) is made of corrosion-resistant and collision-resistant metal material, and the outlet of the gas inlet pipe (5) is designed in a horn shape; The side wall of the gas inlet pipe (5) is provided with an annular protruding groove at the position of the water removal wire mesh (52), and the lowest point of the annular protruding groove is provided with a drainage channel, the water removal wire mesh (52) is a plurality of groups of hollow annular spirals, and the water removal wire mesh (52) is made of non-magnetic, waterproof and ductile metal material; The inner side of the water removal wire mesh (52) is fixedly installed with two groups of second strong permanent magnets (521) which are symmetrical, and the magnetic poles of the two groups of second strong permanent magnets (521) are arranged in the same direction, and the outer side wall of the gas inlet pipe (5) is also fixedly installed with two groups of first strong permanent magnets (53) which are symmetrical at the position of the water removal wire mesh (52), and the magnetic poles of the two groups of first strong permanent magnets (53) are also arranged in the same direction.

2. A high efficient air cooling device for three-phase dual-winding transformer according to claim 1, characterized in that, The first transmission rod (6) and the third transmission rod (8), the first transmission rod (6) and the second transmission rod (7), the second transmission rod (7) and the sixth transmission rod (11), the third transmission rod (8) and the fourth transmission rod (9), the fourth transmission rod (9) and the fifth transmission rod (10) are all driven by bevel gear sets, and the side wall of each transmission rod is fixedly sleeved with a group of guide vanes (14), the first transmission rod (6) extends to the inside of the top end of the air outlet pipe (13) and is additionally provided with a group of guide vanes (14), and the rotating direction of the guide vanes (14) is the direction of guiding the airflow in the cavity to the air outlet pipe (13).

3. The high efficient air cooling device for three-phase dual-winding transformer of claim 1, wherein, The side wall of the guide shaft (55) is provided with two groups of symmetrical rectangular sliding grooves (551), and the side wall of the guide shaft (55) is also provided with two groups of symmetrical spiral sliding grooves (552), and the bottom end and the top end of the spiral sliding groove (552) are respectively communicated with the bottom end and the top end of the rectangular sliding groove (551).

4. The high efficient air cooling device for three-phase dual-winding transformer of claim 3, characterized in that, The reset mechanism (56) comprises a reset shaft (561), a reset spring (562) is fixedly installed at the bottom of the reset shaft (561), a limiting shaft (564) is fixedly installed at the inner side of the reset shaft (561), and a striking net plate (563) is fixedly installed at the bottom of the reset shaft (561).

5. A high efficiency air cooled cooling device for a three-phase dual-winding transformer as claimed in claim 4, characterized in that, The inner diameter of the reset shaft (561) matches the outer diameter of the guide shaft (55), the size of the limiting shaft (564) matches the width of the spiral sliding groove (552) and the depth of the rectangular sliding groove (551), a ball is installed at the top end of the limiting shaft (564), the outer side bottom end of the reset shaft (561) is fixedly installed with a striking net plate (563), the size of the striking net plate (563) matches the size of the dustproof screen (57), and the striking net plate (563) is made of corrosion-resistant and impact-resistant light metal material.

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