A collector ring ventilation system

Abstract

The present invention discloses a collector ring ventilation system, which belongs to the technical field of hydro-turbine generators, and aims to provide a collector ring ventilation system to solve the problem of poor heat dissipation effect of collector rings of existing hydro-turbine generators. The system comprises a generator slip ring shaft, a support ring plate is installed on the generator slip ring shaft, a gear plate is installed on the top of the generator slip ring shaft, a plurality of collector rings are installed on the support ring plate through collector ring studs, a plurality of brush holders are installed on the support ring plate through brush holder studs, the brush holders are located outside the collector rings, and annular fans are installed on both sides of the upper ring and the lower ring of the collector ring. The present invention is applicable to a collector ring ventilation system.

Description

Technical Field

[0001] The invention belongs to the technical field of hydro-generators, and in particular relates to a collector ring ventilation system. Background Art

[0002] When the hydro-turbine generator set is in operation, the excitation current needs to flow into the rotor to generate a magnetic field. Since the rotating parts of the rotor need to input the excitation current into the collector ring through the carbon brush and then into the generator rotor coil, the carbon brush does not move during operation, and the collector ring rotates at high speed, and the two are in friction contact. When the collector ring is working, a lot of heat will be generated due to friction and current passing through, which needs to be discharged. The traditional design is to dissipate heat naturally. Sometimes the unit space is small and the heat dissipation effect is poor, and the heat dissipation speed is very slow, which will cause the collector ring temperature to be too high and affect the normal operation of the unit.

[0003] Therefore, how to take away the heat from the collector ring and improve the heat dissipation effect of the collector ring is of great research significance. Summary of the invention

[0004] The purpose of the present invention is to provide a collector ring ventilation system to solve the problem of poor heat dissipation effect of collector rings of existing hydro-generators.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A collector ring ventilation system comprises a generator slip ring shaft, a supporting ring plate is installed on the generator slip ring shaft, a gear plate is installed on the top of the generator slip ring shaft, a plurality of collector rings are installed on the supporting ring plate through collector ring studs, a plurality of brush holders are installed on the supporting ring plate through brush holder studs, the brush holders are located outside the collector rings, and annular fans are installed on both sides of the upper ring and the lower ring of the collector ring.

[0007] Furthermore, a wind shielding ring plate is installed on the outer side of the brush holder between the upper ring and the lower ring of the collector ring along the axial direction of the brush holder stud.

[0008] Furthermore, an upper ring of the collector ring is located inside the brush holder and is horizontally provided with an insulating wind shield.

[0009] Furthermore, outer surfaces of the support ring plate, the collector ring, the brush holder studs, and the collector ring studs are all coated with an insulating coating.

[0010] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0011] 1. The present invention comprises a generator slip ring shaft, a support ring plate is installed on the generator slip ring shaft, a gear plate is installed on the top of the generator slip ring shaft, a plurality of collector rings are installed on the support ring plate through collector ring studs, a plurality of brush holders are installed on the support ring plate through brush holder studs, the brush holders are located outside the collector rings, and fans are installed on both sides of the upper ring and the lower ring of the collector ring.

[0012] Through this arrangement, annular fans are installed on both sides of the upper ring and the lower ring of the collector ring. When the hydro-turbine generator is running, the rotation of the hydro-turbine generator rotor is utilized to rotate the annular fans to generate wind force, and the heat of the carbon brushes and collector rings installed on the brush holder is taken away, so as to achieve the purpose of cooling the carbon brushes and collector rings, and solve the problem of poor heat dissipation effect of the collector rings of the existing hydro-turbine generator.

[0013] 2. In the present invention, a wind shield plate is installed on the outside of the brush holder between the upper ring and the lower ring of the collector ring along the axial direction of the brush holder stud. Through this arrangement, the wind shield plate can guide the wind force generated by the annular fan to ensure sufficient heat dissipation of the carbon brush and the collector ring.

[0014] 3. In the present invention, the upper ring of the collector ring is located inside the brush holder and is horizontally provided with an insulating windshield. With this arrangement, the insulating windshield can guide the wind force generated by the annular fan to ensure sufficient heat dissipation of the carbon brush and collector ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a partial schematic diagram of the present invention;

[0017] Markings in the figure: 1-generator slip ring shaft, 2-support ring plate, 3-toothed disc, 4-collector ring, 5-brush holder stud, 6-brush holder, 7-annular fan, 8-wind shield ring plate, 9-insulating wind shield. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] A collector ring ventilation system comprises a generator slip ring shaft, a supporting ring plate is installed on the generator slip ring shaft, a gear plate is installed on the top of the generator slip ring shaft, a plurality of collector rings are installed on the supporting ring plate through collector ring studs, a plurality of brush holders are installed on the supporting ring plate through brush holder studs, the brush holders are located outside the collector rings, and annular fans are installed on both sides of the upper ring and the lower ring of the collector ring.

[0020] Furthermore, a wind shielding ring plate is installed on the outer side of the brush holder between the upper ring and the lower ring of the collector ring along the axial direction of the brush holder stud.

[0021] Furthermore, an upper ring of the collector ring is located inside the brush holder and is horizontally provided with an insulating wind shield.

[0022] Furthermore, outer surfaces of the support ring plate, the collector ring, the brush holder studs, and the collector ring studs are all coated with an insulating coating.

[0023] During the implementation of the present invention, annular fans are installed on both sides of the upper ring and the lower ring of the collector ring. When the hydro-turbine generator is running, the rotation of the hydro-turbine generator rotor is used to rotate the annular fans to generate wind force, which takes away the heat of the carbon brushes and collector rings installed on the brush holder, thereby achieving the purpose of cooling the carbon brushes and collector rings, and solving the problem of poor heat dissipation effect of the collector rings of the existing hydro-turbine generator. A wind shielding ring plate is installed on the outer side of the brush holder between the upper ring and the lower ring of the collector ring along the axial direction of the brush holder stud. Through this arrangement, the wind shielding ring plate can guide the wind force generated by the annular fan to ensure sufficient heat dissipation of the carbon brushes and collector rings. The upper ring of the collector ring is located on the inner side of the brush holder and is installed with an insulating wind shield plate in the horizontal direction. Through this arrangement, the insulating wind shield plate can guide the wind force generated by the annular fan to ensure sufficient heat dissipation of the carbon brushes and collector rings. The outer surfaces of the support ring plate, the collector ring, the brush holder stud, and the collector ring stud are all coated with an insulating coating.

[0024] Example 1

[0025] A collector ring ventilation system comprises a generator slip ring shaft, a supporting ring plate is installed on the generator slip ring shaft, a gear plate is installed on the top of the generator slip ring shaft, a plurality of collector rings are installed on the supporting ring plate through collector ring studs, a plurality of brush holders are installed on the supporting ring plate through brush holder studs, the brush holders are located outside the collector rings, and annular fans are installed on both sides of the upper ring and the lower ring of the collector ring.

[0026] Through this arrangement, annular fans are installed on both sides of the upper ring and the lower ring of the collector ring. When the hydro-turbine generator is running, the rotation of the hydro-turbine generator rotor is utilized to rotate the annular fans to generate wind force, and the heat of the carbon brushes and collector rings installed on the brush holder is taken away, so as to achieve the purpose of cooling the carbon brushes and collector rings, and solve the problem of poor heat dissipation effect of the collector rings of the existing hydro-turbine generator.

[0027] Example 2

[0028] Based on Example 1, a wind shield plate is installed on the outside of the brush holder between the upper ring and the lower ring of the collector ring along the axial direction of the brush holder stud. Through this arrangement, the wind shield plate can guide the wind force generated by the annular fan to ensure sufficient heat dissipation of the carbon brush and the collector ring.

[0029] Example 3

[0030] Based on the above embodiment, the upper ring of the collector ring is located inside the brush holder and is horizontally installed with an insulating windshield. Through this arrangement, the insulating windshield can guide the wind force generated by the annular fan to ensure sufficient heat dissipation of the carbon brushes and collector rings.

[0031] Example 4

[0032] On the basis of the above-mentioned embodiment, the outer surfaces of the support ring plate, the collector ring, the brush holder studs and the collector ring studs are all coated with an insulating coating.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A collector ring ventilation system, characterized in that: The invention comprises a generator slip ring shaft (1), a support ring plate (2) is installed on the generator slip ring shaft (1), a gear disk (3) is installed on the top of the generator slip ring shaft (1), a plurality of collector rings (4) are installed on the support ring plate (2) via collector ring studs, a plurality of brush holders (6) are installed on the support ring plate (2) via brush holder studs (5), the brush holders (6) are located outside the collector rings (4), and annular fans (7) are installed on both sides of the upper ring and the lower ring of the collector ring (4).

2. A collector ring ventilation system according to claim 1, characterized in that: A windshield ring plate (8) is installed on the outside of the brush holder (6) between the upper ring and the lower ring of the collector ring (4) along the axial direction of the brush holder stud (5).

3. A collector ring ventilation system according to claim 1 or 2, characterized in that: The upper ring of the collector ring (4) is located inside the brush holder (6) and is equipped with an insulating windshield plate (9) in the horizontal direction.

4. A collector ring ventilation system according to claim 1, characterized in that: The outer surfaces of the support ring plate (2), the collector ring (4), the brush holder stud (5) and the collector ring stud are all coated with an insulating coating.

Images