Magnetic pole inter-pole supporting method for cooling magnetic pole coil and application of magnetic pole inter-pole supporting method

Abstract

The invention discloses a magnetic pole inter-pole supporting method for cooling a magnetic pole coil and application, and belongs to the technical field of hydro-generators, and the mounting method comprises the following steps: S1, hanging a magnetic pole on a magnet yoke, adjusting the elevation of the center line of the magnetic pole to a preset position, and mounting and fixing a magnetic pole stop block; s2, a jackscrew support is fixed to the side edge shroud ring of the magnetic pole, and then a jackscrew is screwed into the jackscrew support; s3, an inter-electrode baffle is fixed to the magnet yoke, a disc spring pressing ring is fixed to the inter-electrode baffle, and a disc spring is arranged in the disc spring pressing ring; and S4, the jackscrew is adjusted, so that the jackscrew makes contact with the disc spring and compresses the disc spring. The rigidity of the interelectrode supporting structure is improved, the interelectrode supporting structure can better adapt to thermal expansion of the pole coil, and therefore it is effectively guaranteed that the pole coil is fixed firmly and can be matched with thermal deformation, and the whole installation process is convenient and reliable.

Description

Technical Field

[0001] The invention relates to the technical field of hydro-generators, and in particular to a magnetic pole inter-pole support method for cooling magnetic pole coils and an application thereof. Background Art

[0002] The pumped storage unit has a high rotation speed and large centrifugal force. In order to ensure the safety of the rotating parts, a reliable support structure needs to be set between the magnetic poles.

[0003] In the prior art, the support structure is usually installed between the poles by means of a belt and a top screw. However, it is difficult to accurately set the gap between the top screws. If the gap is too large, the top screw cannot function, and if it is too small, it may cause high thermal stress. Therefore, the installation reliability of the support structure is poor.

[0004] A Chinese patent document with announcement number CN205595925U and announcement date September 21, 2016 discloses an insulating split-type inter-pole support structure suitable for thin steel plate support of a hydro-turbine generator, which is characterized in that it consists of a slotted single-petal insulating support block, a thin steel plate pull piece, a first bolt, a nut, a cylindrical pin, a second bolt, a dove tail block, and a set screw. Multiple thin steel plate pull pieces are stacked together, placed in the grooves of the two-petal slotted single-petal insulating support blocks, tightened into one with a first bolt and a nut, installed in the middle of two adjacent magnetic poles, and used to support the two adjacent magnetic poles. The thin steel plate pull piece and the dove tail block are tightened with a second bolt, the cylindrical pin is placed in the pin holes of the thin steel plate pull piece and the dove tail block to withstand centrifugal force, the dove tail block is placed in the magnetically tough dove tail groove, and is pushed into the hole processed on the yoke with a set screw for axial limitation and radial tightening.

[0005] The patent document discloses an insulating split-type inter-pole support structure supported by thin steel plates for hydro-turbine generators. The supporting pull tabs of the insulating split-type inter-pole support structure supported by thin steel plates for hydro-turbine generators are made of multiple high-strength thin steel plates stacked together. The multiple thin steel plate pull tabs and the slotted single-petal insulating support blocks are integrated into a whole by bolts and nuts. During the rotation of the unit, the supporting pull tabs bear the radial force of the insulating support blocks to ensure the safe and stable operation of the unit. However, due to the use of a thin steel plate tensioning structure, the risk of fatigue damage is higher, and the insulating support blocks have limited force bearing capacity, which is prone to layered cracking, affecting the overall stiffness of the inter-pole support structure, and failing to ensure that the magnetic pole coils are both firmly fixed and can match thermal deformation. Summary of the invention

[0006] In order to overcome the defects of the above-mentioned prior art, the present invention provides a magnetic pole inter-pole support method and application for cooling the magnetic pole coil. The present invention improves the rigidity of the inter-pole support structure and can better adapt to the thermal expansion of the magnetic pole coil, thereby effectively ensuring that the magnetic pole coil is both firmly fixed and can match the thermal deformation, and the entire installation process is convenient and reliable.

[0007] The present invention is achieved through the following technical solutions: A method for supporting magnetic poles between magnetic poles for cooling magnetic pole coils, comprising the following steps: S1. Mount the magnetic pole on the magnetic yoke, adjust the elevation of the magnetic pole centerline to the preset position, and install and fix the magnetic pole stopper; S2. Fix the top screw support on the side circumference of the magnetic pole, and then screw the top screw into the top screw support; S3, fix the inter-pole baffle plate on the magnetic yoke, fix the disc spring pressure ring on the inter-pole baffle plate, and arrange the disc spring in the disc spring pressure ring; S4. Adjust the top screw so that it contacts the disc spring and compresses the disc spring.

[0008] In S1, hanging the magnetic pole on the magnetic yoke means erecting the magnetic pole and hanging it on the magnetic yoke by using a magnetic pole hanging tool.

[0009] In the S1, there are multiple magnetic poles, and the multiple magnetic poles are fixed by central symmetry.

[0010] The central symmetrical hanging and fixing refers to setting a magnetic pole key on the magnetic yoke, installing and fixing the magnetic pole through the magnetic pole key, and tightening the magnetic pole key by hitting with a sledgehammer.

[0011] The frequency of the hammer striking is once every 12 hours, and the fastening should be done at least 3 times.

[0012] In S1, adjusting the elevation of the magnetic pole centerline to a preset position refers to using a jack for adjustment, and removing the jack after the magnetic pole block is fixed.

[0013] In the above S3, fixing the inter-pole baffle on the magnetic yoke means providing a wedge key and a T-tail groove on the magnetic yoke, and fixing the end of the inter-pole baffle in the T-tail groove of the magnetic yoke by the wedge key.

[0014] In S3, the inter-pole baffle is located between any two adjacent magnetic poles, and the disc spring pressure ring is located in the middle of the inter-pole baffle.

[0015] In S4, the contact between the top screw and the disc spring refers to the contact between the spherical surface of the end of the top screw and the circumference of the central circular hole of the disc spring.

[0016] In S4, compressing the disc spring means tightening the top screws symmetrically along both sides of the interpolar baffle, and the top screws compress the disc spring until the remaining compression height of the disc spring is 10%-80%.

[0017] The invention discloses an application of a magnetic pole interpole support method for cooling a magnetic pole coil, which is suitable for the installation of a magnetic pole interpole support structure of a hydro-turbine generator.

[0018] The beneficial effects of the present invention are mainly manifested in the following aspects: 1. Compared with the prior art, the present invention improves the rigidity of the inter-pole support structure and can better adapt to the thermal expansion of the pole coil, thereby ensuring that the pole coil is both firmly fixed and can match the thermal deformation, and the entire installation process is convenient and reliable.

[0019] 2. In the present invention, in S1, there are multiple magnetic poles, and the multiple magnetic poles are fixed by central symmetry, which can balance the rotor assembly weight and improve the installation accuracy.

[0020] 3. In the present invention, the center-symmetrical hanging fixation refers to installing and fixing the magnetic pole by means of a magnetic pole key, which is fastened by striking with a sledgehammer, is easy to install, and can firmly fix the magnetic pole.

[0021] 4. In the present invention, the frequency of striking with a sledgehammer is once every 12 hours, and the pole keys are struck and tightened at least three times, which can ensure that the pole keys are tightened to the preset requirements and ensure that the poles are fixed reliably.

[0022] 5. In the present invention, in S1, adjusting the elevation of the magnetic pole centerline to a preset position refers to adjusting it using a jack, and removing the jack after the magnetic pole block is fixed, which can ensure the consistency of the elevation of each magnetic pole centerline on the circumference.

[0023] 6. In the present invention, in S3, fixing the interpole baffle on the yoke means providing a wedge key and a T-tail groove on the yoke, and fixing the end of the interpole baffle in the T-tail groove of the yoke by the wedge key. The interpole baffle is fixed by the wedge key, which can improve the fixing reliability of the interpole baffle and ensure the safety and reliability of the supporting structure.

[0024] 7. In the present invention, in S4, the contact between the top screw and the disc spring means that the end spherical surface of the top screw is in circumferential contact with the central circular hole of the disc spring, which can ensure reliable support of the top screw and the disc spring.

[0025] 8. In the present invention, in S4, compressing the disc spring means tightening the top screw symmetrically along both sides of the inter-pole baffle, and the top screw compresses the disc spring until the remaining compression height of the disc spring is 10%-80%. While ensuring the supporting effect, a sufficient elastic range is reserved to adapt to the thermal expansion of the pole coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Figure 1 It is a flowchart of the present invention; Figure 2 This is a schematic diagram of the installation of the support structure of the present invention; Figure 3 for Figure 2 The enlarged view of point A in the middle; Figure 4 It is a schematic diagram of the structure where the magnetic pole is mounted on the magnetic yoke; Markings in the figure: 1. Magnetic pole, 2. Magnetic yoke, 3. Magnetic pole stopper, 4. Top screw support, 5. Side band, 6. Top screw, 7. Inter-pole baffle, 8. Disc spring pressure ring, 9. Disc spring, 10. Magnetic pole key, 11. Wedge key, 12. T-tail groove. DETAILED DESCRIPTION

[0027] Example 1 See also Figure 1-Figure 4 , a magnetic pole interpole support method for cooling a magnetic pole coil, comprising the following steps: S1. Mount the magnetic pole 1 on the magnetic yoke 2, adjust the centerline elevation of the magnetic pole 1 to a preset position, and install and fix the magnetic pole stopper 3; S2, fix the top screw support 4 on the side circumference 5 of the magnetic pole 1, and then screw the top screw 6 into the top screw support 4; S3, fix the inter-pole baffle 7 on the yoke 2, fix the disc spring pressure ring 8 on the inter-pole baffle 7, and arrange the disc spring 9 in the disc spring pressure ring 8; S4. Adjust the top screw 6 so that the top screw 6 contacts the disc spring 9 and compresses the disc spring 9.

[0028] This embodiment is the most basic implementation method. Compared with the prior art, by adopting "fixing the disc spring pressure ring 8 on the interpole baffle 7, arranging the disc spring 9 in the disc spring pressure ring 8, adjusting the top screw 6, making the top screw 6 contact with the disc spring 9 and compressing the disc spring 9", the specific selection of the elastic structure of the disc spring pressure ring 8 and the disc spring 9 improves the rigidity of the interpole support structure, can better adapt to the thermal expansion of the pole coil, thereby ensuring that the pole coil is both firmly fixed and can match the thermal deformation, and the whole installation process is convenient and reliable.

[0029] Example 2 See also Figure 1-Figure 4 , a magnetic pole interpole support method for cooling a magnetic pole coil, comprising the following steps: S1. Mount the magnetic pole 1 on the magnetic yoke 2, adjust the centerline elevation of the magnetic pole 1 to a preset position, and install and fix the magnetic pole stopper 3; S2, fix the top screw support 4 on the side circumference 5 of the magnetic pole 1, and then screw the top screw 6 into the top screw support 4; S3, fix the inter-pole baffle 7 on the yoke 2, fix the disc spring pressure ring 8 on the inter-pole baffle 7, and arrange the disc spring 9 in the disc spring pressure ring 8; S4. Adjust the top screw 6 so that the top screw 6 contacts the disc spring 9 and compresses the disc spring 9.

[0030] Preferably, in S1, hanging the magnetic pole 1 on the magnetic yoke 2 means erecting the magnetic pole 1 and hanging it on the magnetic yoke 2 by using a magnetic pole hanging tool.

[0031] In the S1, there are multiple magnetic poles 1, and the multiple magnetic poles 1 are fixed by central symmetry.

[0032] This embodiment is a preferred implementation. In S1, there are multiple magnetic poles 1, and the multiple magnetic poles 1 are fixed by central symmetrical hanging, which can balance the rotor assembly weight and improve the installation accuracy.

[0033] Example 3 See also Figure 1-Figure 4 , a magnetic pole interpole support method for cooling a magnetic pole coil, comprising the following steps: S1. Mount the magnetic pole 1 on the magnetic yoke 2, adjust the centerline elevation of the magnetic pole 1 to a preset position, and install and fix the magnetic pole stopper 3; S2, fix the top screw support 4 on the side circumference 5 of the magnetic pole 1, and then screw the top screw 6 into the top screw support 4; S3, fix the inter-pole baffle 7 on the yoke 2, fix the disc spring pressure ring 8 on the inter-pole baffle 7, and arrange the disc spring 9 in the disc spring pressure ring 8; S4. Adjust the top screw 6 so that the top screw 6 contacts the disc spring 9 and compresses the disc spring 9.

[0034] In S1, hanging the magnetic pole 1 on the magnetic yoke 2 means erecting the magnetic pole 1 and hanging it on the magnetic yoke 2 by using a magnetic pole hanging tool.

[0035] In the S1, there are multiple magnetic poles 1, and the multiple magnetic poles 1 are fixed by central symmetry.

[0036] The central symmetrical hanging and fixing refers to setting a pole key 10 on the yoke 2, installing and fixing the pole 1 through the pole key 10, and tightening the pole key 10 by hammering.

[0037] The frequency of the hammer striking is once every 12 hours, and the tightening is performed 3 times.

[0038] This embodiment is another preferred implementation mode. The central symmetrical hanging fixation refers to installing and fixing the magnetic pole 1 through the magnetic pole key 10. The magnetic pole key 10 is fastened by hammering with a sledgehammer. It is easy to install and can firmly fix the magnetic pole 1.

[0039] The frequency of the hammer strikes is once every 12 hours, and at least three times of strikes are required to tighten the magnetic pole key 10, which can ensure that the magnetic pole 1 is tightened to the preset requirements and that the magnetic pole 1 is fixed reliably.

[0040] Example 4 See also Figure 1-Figure 4 , a magnetic pole interpole support method for cooling a magnetic pole coil, comprising the following steps: S1. Mount the magnetic pole 1 on the magnetic yoke 2, adjust the centerline elevation of the magnetic pole 1 to a preset position, and install and fix the magnetic pole stopper 3; S2, fix the top screw support 4 on the side circumference 5 of the magnetic pole 1, and then screw the top screw 6 into the top screw support 4; S3, fix the inter-pole baffle 7 on the yoke 2, fix the disc spring pressure ring 8 on the inter-pole baffle 7, and arrange the disc spring 9 in the disc spring pressure ring 8; S4. Adjust the top screw 6 so that the top screw 6 contacts the disc spring 9 and compresses the disc spring 9.

[0041] In S1, hanging the magnetic pole 1 on the magnetic yoke 2 means erecting the magnetic pole 1 and hanging it on the magnetic yoke 2 by using a magnetic pole hanging tool.

[0042] In the S1, there are multiple magnetic poles 1, and the multiple magnetic poles 1 are fixed by central symmetry.

[0043] Further preferably, the centrally symmetrical hanging and fixing refers to providing a magnetic pole key 10 on the magnetic yoke 2, installing and fixing the magnetic pole 1 through the magnetic pole key 10, and tightening the magnetic pole key 10 by hammering with a sledgehammer.

[0044] The frequency of the hammer striking is once every 12 hours, and the tightening is performed 5 times.

[0045] In S1, adjusting the elevation of the centerline of the magnetic pole 1 to the preset position means using a jack for adjustment, and removing the jack after the magnetic pole stopper 3 is fixed.

[0046] This embodiment is another preferred implementation mode. In S1, adjusting the elevation of the center line of the magnetic pole 1 to the preset position means adjusting it by using a jack. After the magnetic pole block 3 is fixed, the jack is removed to ensure the consistency of the center elevations of each circumferential magnetic pole 1.

[0047] Example 5 See also Figure 1-Figure 4 , a magnetic pole interpole support method for cooling a magnetic pole coil, comprising the following steps: S1. Mount the magnetic pole 1 on the magnetic yoke 2, adjust the centerline elevation of the magnetic pole 1 to a preset position, and install and fix the magnetic pole stopper 3; S2, fix the top screw support 4 on the side circumference 5 of the magnetic pole 1, and then screw the top screw 6 into the top screw support 4; S3, fix the inter-pole baffle 7 on the yoke 2, fix the disc spring pressure ring 8 on the inter-pole baffle 7, and arrange the disc spring 9 in the disc spring pressure ring 8; S4. Adjust the top screw 6 so that the top screw 6 contacts the disc spring 9 and compresses the disc spring 9.

[0048] In S1, hanging the magnetic pole 1 on the magnetic yoke 2 means erecting the magnetic pole 1 and hanging it on the magnetic yoke 2 by using a magnetic pole hanging tool.

[0049] In the S1, there are multiple magnetic poles 1, and the multiple magnetic poles 1 are fixed by central symmetry.

[0050] The central symmetrical hanging and fixing refers to setting a pole key 10 on the yoke 2, installing and fixing the pole 1 through the pole key 10, and tightening the pole key 10 by hammering.

[0051] The frequency of the hammer striking is once every 12 hours, and the tightening is performed 6 times.

[0052] In S1, adjusting the elevation of the centerline of the magnetic pole 1 to the preset position means using a jack for adjustment, and removing the jack after the magnetic pole stopper 3 is fixed.

[0053] In S3 , fixing the inter-pole baffle 7 on the yoke 2 means providing a wedge key 11 and a T-tail groove 12 on the yoke 2 , and fixing the end of the inter-pole baffle 7 in the T-tail groove 12 of the yoke 2 by the wedge key 11 .

[0054] In S3 , the inter-pole baffle 7 is located between any two adjacent magnetic poles 1 , and the disc spring pressure ring 8 is located in the middle of the inter-pole baffle 7 .

[0055] This embodiment is another preferred implementation manner. In S3, fixing the interpole baffle 7 on the yoke 2 means providing a wedge key 11 and a T-tail groove 12 on the yoke 2, and fixing the end of the interpole baffle 7 in the T-tail groove 12 of the yoke 2 by the wedge key 11. The interpole baffle 7 is fixed by the wedge key 11, which can improve the fixing reliability of the interpole baffle 7 and ensure the safety and reliability of the supporting structure.

[0056] Example 6 See also Figure 1-Figure 4 , a magnetic pole interpole support method for cooling a magnetic pole coil, comprising the following steps: S1. Mount the magnetic pole 1 on the magnetic yoke 2, adjust the centerline elevation of the magnetic pole 1 to a preset position, and install and fix the magnetic pole stopper 3; S2, fix the top screw support 4 on the side circumference 5 of the magnetic pole 1, and then screw the top screw 6 into the top screw support 4; S3, fix the inter-pole baffle 7 on the yoke 2, fix the disc spring pressure ring 8 on the inter-pole baffle 7, and arrange the disc spring 9 in the disc spring pressure ring 8; S4. Adjust the top screw 6 so that the top screw 6 contacts the disc spring 9 and compresses the disc spring 9.

[0057] In S1, hanging the magnetic pole 1 on the magnetic yoke 2 means erecting the magnetic pole 1 and hanging it on the magnetic yoke 2 by using a magnetic pole hanging tool.

[0058] In the S1, there are multiple magnetic poles 1, and the multiple magnetic poles 1 are fixed by central symmetry.

[0059] The central symmetrical hanging and fixing refers to setting a pole key 10 on the yoke 2, installing and fixing the pole 1 through the pole key 10, and tightening the pole key 10 by hammering.

[0060] The frequency of the hammer striking is once every 12 hours, and the tightening is performed 8 times.

[0061] In S1, adjusting the elevation of the centerline of the magnetic pole 1 to the preset position means using a jack for adjustment, and removing the jack after the magnetic pole stopper 3 is fixed.

[0062] In S3 , fixing the inter-pole baffle 7 on the yoke 2 means providing a wedge key 11 and a T-tail groove 12 on the yoke 2 , and fixing the end of the inter-pole baffle 7 in the T-tail groove 12 of the yoke 2 by the wedge key 11 .

[0063] More preferably, in S3 , the inter-pole baffle 7 is located between any two adjacent magnetic poles 1 , and the disc spring pressure ring 8 is located in the middle of the inter-pole baffle 7 .

[0064] In the above S4 , the contact between the top screw 6 and the disc spring 9 means that the end spherical surface of the top screw 6 is in contact with the circumference of the central circular hole of the disc spring 9 .

[0065] In the above S4, compressing the disc spring 9 means tightening the top screw 6 symmetrically along both sides of the interpolar baffle 7, and the top screw 6 compresses the disc spring 9 until the remaining compression height of the disc spring 9 is 80%.

[0066] This embodiment is the best implementation mode. In S4, the contact between the top screw 6 and the disc spring 9 means that the end spherical surface of the top screw 6 is in circumferential contact with the central circular hole of the disc spring 9, which can ensure that the top screw 6 and the disc spring 9 are reliably supported.

[0067] In S4, compressing the disc spring 9 means tightening the top screw 6 symmetrically along both sides of the inter-pole baffle 7. The top screw 6 compresses the disc spring 9 until the remaining compression height of the disc spring 9 is 80%. While ensuring the supporting effect, a sufficient elastic range is reserved to adapt to the thermal expansion of the pole coil.

[0068] The basic principles of the present invention are as follows: By hanging the magnetic pole 1 on the yoke 2, adjusting the elevation of the center line of the magnetic pole 1 to the preset position, installing and fixing the magnetic pole block 3, fixing the top screw support 4 on the side circumference 5 of the magnetic pole 1, and then screwing the top screw 6 into the top screw support 4, fixing the interpolar baffle 7 on the magnetic yoke 2, fixing the disc spring pressure ring 8 on the interpolar baffle 7, and arranging a disc spring 9 in the disc spring pressure ring 8; adjusting the top screw 6 so that the top screw 6 contacts the disc spring 9 and compresses the disc spring 9. The use of this specific disc spring pressure ring 8 in combination with the interpolar baffle 7 not only improves the stiffness of the interpolar support structure, but also can better adapt to the thermal expansion of the magnetic pole coil, thereby ensuring that the magnetic pole coil is both firmly fixed and can match thermal deformation, and the entire installation process is convenient and reliable.

[0069] The preparation of pole 1 is as follows: After transporting the magnetic pole 1 to the installation room, unpack and check that the magnetic pole 1 is free of moisture and damage; use the magnetic pole flat lifting tool to lift the magnetic pole 1, clean and check that the magnetic pole 1 is free of damage, and the surface of the magnetic pole 1 is required to be free of dust and dirt; in a dry, clean and well-lit place, conduct an electrical test on the magnetic pole 1. The test voltage of the AC withstand voltage test is 10 times the rated excitation voltage plus 1500V and the test voltage is not less than 3000V. Use a megohmmeter to test the insulation resistance of the magnetic pole 1, and the insulation resistance is not less than 200MΩ. Heat and dry the magnetic pole 1 that does not meet the requirements, and control the heating temperature at 60℃-80℃ for a heating time of not less than 24 hours. After the magnetic pole 1 slowly cools down to room temperature, measure the insulation resistance again to ensure that the insulation performance of the mounted magnetic pole 1 is good and the magnetic pole 1 is thoroughly dried.

[0070] The arrangement of disc spring 9 is as follows: The number and arrangement of the disc springs 9 are determined according to the lateral force component and deformation size of the pole coil. When the lateral force component is large and the deformation is small, multiple disc springs 9 are overlapped to ensure support stiffness; when the lateral force component is small and the deformation is large, multiple disc springs 9 are matched to ensure compression reserve; when the lateral force component is large and the deformation is large, multiple disc springs 9 are overlapped and matched to ensure support stiffness while increasing compression reserve.

Claims

1. A method for supporting magnetic poles between magnetic poles for cooling magnetic pole coils, characterized in that: The following steps are involved: S1. Mount the magnetic pole (1) on the magnetic yoke (2), adjust the centerline elevation of the magnetic pole (1) to a preset position, and install and fix the magnetic pole stopper (3); S2, fix the top screw support (4) on the side circumference (5) of the magnetic pole (1), and then screw the top screw (6) into the top screw support (4); S3, fixing the inter-pole baffle (7) on the magnetic yoke (2), fixing the disc spring pressure ring (8) on the inter-pole baffle (7), and arranging the disc spring (9) in the disc spring pressure ring (8); S4. Adjust the top screw (6) so that the top screw (6) contacts the disc spring (9) and compresses the disc spring (9).

2. A method for supporting magnetic poles between magnetic poles for cooling magnetic pole coils according to claim 1, characterized in that: In S1, hanging the magnetic pole (1) on the magnetic yoke (2) means erecting the magnetic pole (1) and hanging it on the magnetic yoke (2) by using a magnetic pole hanging tool.

3. The method for supporting magnetic poles between magnetic poles for cooling magnetic pole coils according to claim 1, characterized in that: In the S1, there are multiple magnetic poles (1), and the multiple magnetic poles (1) are fixed by central symmetry.

4. A method for supporting magnetic poles between magnetic poles for cooling magnetic pole coils according to claim 3, characterized in that: The central symmetrical hanging and fixing refers to providing a magnetic pole key (10) on the magnetic yoke (2), installing and fixing the magnetic pole (1) through the magnetic pole key (10), and tightening the magnetic pole key (10) by hammering.

5. A method for supporting magnetic poles between magnetic poles for cooling magnetic pole coils according to claim 4, characterized in that: The frequency of the hammer striking is once every 12 hours, and the fastening should be done at least 3 times.

6. A method for supporting magnetic poles between magnetic poles for cooling magnetic pole coils according to claim 5, characterized in that: The number of times of striking and tightening by the sledgehammer is 5 times.

7. The method for supporting magnetic poles between magnetic poles for cooling magnetic pole coils according to claim 5, characterized in that: The number of times of striking and tightening by the sledgehammer is 8 times.

8. The method for supporting magnetic poles between magnetic poles for cooling magnetic pole coils according to claim 1, characterized in that: In S1, adjusting the elevation of the centerline of the magnetic pole (1) to a preset position means using a jack for adjustment, and removing the jack after the magnetic pole block (3) is fixed.

9. The method for supporting magnetic poles between magnetic poles for cooling magnetic pole coils according to claim 1, characterized in that: In the above-mentioned S3, fixing the interpolar baffle (7) on the magnetic yoke (2) means providing a wedge-shaped key (11) and a T-tail groove (12) on the magnetic yoke (2), and fixing the end of the interpolar baffle (7) in the T-tail groove (12) of the magnetic yoke (2) by means of the wedge-shaped key (11).

10. The method for supporting magnetic poles between magnetic poles for cooling magnetic pole coils according to claim 1, characterized in that: In S3, the interpolar baffle (7) is located between any two adjacent magnetic poles (1), and the disc spring pressure ring (8) is located in the middle of the interpolar baffle (7).

11. The method for supporting magnetic poles between magnetic poles for cooling magnetic pole coils according to claim 1, characterized in that: In S4, the contact between the top screw (6) and the disc spring (9) means that the spherical surface of the end of the top screw (6) is in contact with the circumference of the central circular hole of the disc spring (9).

12. The method for supporting magnetic poles between magnetic poles for cooling magnetic pole coils according to claim 1, characterized in that: In the above-mentioned S4, compressing the disc spring (9) means that the top screw (6) is tightened symmetrically along the two sides of the interpolar baffle (7), and the top screw (6) compresses the disc spring (9) until the remaining compression height of the disc spring (9) is 10%-80%.

13. A method for supporting magnetic poles between magnetic poles for cooling magnetic pole coils according to claim 12, characterized in that: In S4, the top screw (6) compresses the disc spring (9), and stops when the remaining compression height of the disc spring (9) reaches 80%.

14. An application of a magnetic pole inter-pole support method for cooling magnetic pole coils, characterized in that: The method for supporting the magnetic poles between poles for cooling the magnetic pole coils as claimed in claim 1 is suitable for the installation of the magnetic poles between poles supporting structure of a hydro-turbine generator.

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