CN212649247U - Structure is collected to hydraulic generator carbon brush dust - Google Patents
Structure is collected to hydraulic generator carbon brush dust Download PDFInfo
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- CN212649247U CN212649247U CN202021206261.6U CN202021206261U CN212649247U CN 212649247 U CN212649247 U CN 212649247U CN 202021206261 U CN202021206261 U CN 202021206261U CN 212649247 U CN212649247 U CN 212649247U
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- ring
- brush
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- contraceptive
- yoke
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Abstract
The utility model discloses a structure is collected to hydraulic generator carbon brush dust, brush yoke including the sliding ring support and being located the sliding ring support outside fits with a contraceptive ring and brush yoke lower ring, it fits with a contraceptive ring and the sliding ring lower ring to be equipped with the sliding ring on the sliding ring support, the brush yoke is fitted with a contraceptive ring and is equipped with the last brush that corresponds with the sliding ring lower ring, the brush yoke lower ring is equipped with the lower brush that corresponds with the sliding ring lower ring, the brush yoke is fitted with a contraceptive ring and is equipped with outer wind deflector between the ring and the brush yoke lower ring, the sliding ring is fitted with a contraceptive ring and is equipped with interior wind deflector between the ring and the sliding ring lower ring, form the cavity of bleeding between outer wind deflector and the. Therefore, the inner wind shield is arranged between the upper ring of the slip ring and the lower ring of the slip ring, the outer wind shield is arranged between the upper ring of the brush holder and the lower ring of the brush holder, an air exhaust cavity is formed between the outer wind shield and the inner wind shield, and the air exhaust cavity is connected with an air exhaust pipeline. The utility model aims at providing an improve hydrogenerator carbon brush dust collection structure of carbon dust collection effect.
Description
Technical Field
The utility model belongs to the hydraulic generator field especially relates to a structure is collected to hydraulic generator carbon brush dust.
Background
During the running process of the generator, the carbon brush is continuously abraded to generate dust due to the roughness of the surface of the slip ring and the inevitable swing of the slip ring during the running process. Carbon brush dust is static, and often can adhere to other structure parts of the generator around the carbon brush, sometimes the generator has more or less oil mist throwing phenomenon, and the adhered carbon powder is difficult to clean. In some power stations, after the unit operates for a short time, the carbon powder is obviously accumulated in the slip ring top cover of the generator, and if the carbon powder enters a ventilation system of the generator, the carbon powder is adhered to the stator coil, so that the short-circuit fault of the generator is easily caused.
In order to reduce the damage of carbon powder to the generator, many power station generators are provided with a carbon powder collecting device, and the carbon powder in the generator is extracted through negative pressure. However, because the space in the top cover is large, the fan of the collecting device is often connected with the top cover by only one collecting pipe, so that sufficient negative pressure is difficult to form in the top cover, the carbon powder collecting effect is poor, and the carbon powder collecting device cannot play a practical role.
SUMMERY OF THE UTILITY MODEL
The utility model provides an overcome prior art among the above-mentioned not enough, provide a improve hydraulic generator carbon brush dust collection structure of carbon dust collection effect.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a structure is collected to hydraulic generator carbon brush dust, includes the sliding ring support and is located the brush yoke that the sliding ring support outside fits with a contraceptive ring and brush yoke lower ring, be equipped with the sliding ring on the sliding ring support and fit with a contraceptive ring and the sliding ring lower ring, the brush yoke is fitted with a contraceptive ring and is equipped with the last brush that corresponds with the sliding ring, the brush yoke lower ring is equipped with the lower brush that corresponds with the sliding ring lower ring, be equipped with outer wind deflector between the brush yoke fits with a contraceptive ring and the brush yoke lower ring, be equipped with interior wind deflector between the sliding ring fits with a contraceptive ring and the sliding ring lower ring, form the cavity of bleeding between outer wind deflector and the interior wind deflector. Therefore, the inner wind shield is arranged between the upper ring of the slip ring and the lower ring of the slip ring, the outer wind shield is arranged between the upper ring of the brush holder and the lower ring of the brush holder, an air exhaust cavity is formed between the outer wind shield and the inner wind shield, and the air exhaust cavity is connected with an air exhaust pipeline. The action of the air suction pipeline is easy to form larger negative pressure in the air suction cavity, so that the carbon powder is directly sucked away. Meanwhile, air flows in the air exhaust cavity to generate airflow, and the airflow can generate heat exchange when flowing through the upper ring and the lower ring of the slip ring to take away heat on the slip ring, so that the temperature of the slip ring is reduced.
Preferably, the opposite surfaces of the upper ring of the slip ring and the lower ring of the slip ring are respectively provided with a groove, and the edge of the inner wind shield is sealed and fixed in the grooves of the upper ring of the slip ring and the lower ring of the slip ring.
Preferably, the outer wind shield is fixed to the upper ring of the brush holder and the lower ring of the brush holder by bolts. The seam of the outer wind shield is sealed by epoxy glue, so that the overall rigidity and the sealing performance are improved.
Preferably, the air suction pipeline comprises a hose and a carbon powder collecting box communicated with the hose, a fan generating negative pressure to the hose is arranged in the carbon powder collecting box, the outer wind shield is provided with an air suction opening, and the air suction opening is communicated with the hose.
Preferably, the outer wind deflector is provided with through holes corresponding to the upper brush and the lower brush, the upper brush and the lower brush penetrate through the through holes, and gaps between the upper brush and the corresponding through holes and gaps between the lower brush and the corresponding through holes are less than or equal to 3 mm.
The utility model has the advantages that: (1) an air exhaust cavity with small volume is formed between the slip ring and the brush holder, so that large negative pressure is generated to directly suck away dust in the cavity, and the carbon powder collecting effect is improved; (2) the air flow speed in the volume of the air extraction cavity is high, the carbon brush is directly cooled by airflow, and the temperature of the slip ring is reduced; (3) the inner wind shield, the slip ring and the brush yoke are assembled into a whole in the manufacturing process of the generator, the field installation is not affected, and the assembly is simple and convenient.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a plan view of the present invention.
Fig. 3 is a schematic view of the structure at the inner wind shield.
Fig. 4 is a schematic view of a connection structure of the hose and the outer wind shield.
In the figure: 1. the brush holder comprises a slip ring support 11, a slip ring upper ring 12, a slip ring lower ring 2, a brush holder upper ring 21, a groove 3, a brush holder lower ring 4, an upper electric brush 5, a lower electric brush 6, an outer wind shield 7, an inner wind shield 8, a hose 9 and a carbon powder collecting box.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description.
In the embodiment shown in fig. 1, 2, 3, and 4, a carbon brush dust collection structure of a hydro-generator includes a top cover (not shown in the figure), a slip ring support 1 disposed in the top cover, and a brush holder upper ring 2 and a brush holder lower ring 3 located outside the slip ring support, wherein the slip ring support is provided with a slip ring upper ring 11 and a slip ring lower ring 12, the brush holder upper ring is provided with an upper brush 4 corresponding to the slip ring upper ring, and the brush holder lower ring is provided with a lower brush 5 corresponding to the slip ring lower ring.
Be equipped with outer wind deflector 6 between the brush yoke upper ring and the brush yoke lower ring, outer wind deflector passes through the bolt and fixes with the brush yoke upper ring, brush yoke lower ring, and the seam crossing of outer wind deflector and brush yoke upper ring, brush yoke lower ring adopts the epoxy shutoff to increase whole rigidity and leakproofness. The outer wind shield is provided with through holes corresponding to the upper electric brush and the lower electric brush, the upper electric brush and the lower electric brush penetrate through the through holes, and gaps between the upper electric brush and the corresponding through holes and between the lower electric brush and the corresponding through holes are smaller than or equal to 3 mm. An inner wind shield 7 is arranged between the upper ring of the sliding ring and the lower ring of the sliding ring, grooves 21 are respectively arranged on the opposite surfaces of the upper ring of the sliding ring and the lower ring of the sliding ring, and the edge of the inner wind shield is sealed and fixed in the grooves of the upper ring of the sliding ring and the lower ring of the sliding ring. An air exhaust cavity is formed between the outer wind shield and the inner wind shield.
The air exhaust cavity is connected with an air exhaust pipeline, the air exhaust pipeline comprises a hose 8 and a carbon powder collecting box 9 communicated with the hose, a fan generating negative pressure to the hose is arranged in the carbon powder collecting box, an air exhaust opening is formed in the outer wind shield, and the air exhaust opening is communicated with the hose. The end part of the hose 4 is provided with a flame-retardant joint, and the flame-retardant joint and the outer wind shield are connected and fixed through an insulating pin.
In the actual work process, after the fan starts, produce the negative pressure in the cavity of bleeding through the hose intercommunication, inside the air cavity of bleeding was entered into from sliding ring and outer wind deflector clearance to the air, the air flowed through the sliding ring respectively and was fitted with a contraceptive ring and the sliding ring lower ring, drove the carbon dust and got into the hose from the air inlet, collected the box through the interior carbon dust of fan and collected the carbon dust. In the flowing process of the air, the heat generated by the upper ring and the lower ring of the slip ring is simultaneously taken away, the upper electric brush and the lower electric brush are cooled, and the temperature of the slip ring is reduced.
Claims (5)
1. The utility model provides a structure is collected to hydraulic generator carbon brush dust, includes the sliding ring support and is located the brush yoke that the sliding ring support outside fits with a contraceptive ring and brush yoke lower ring, characterized by, it fits with a contraceptive ring and a slip ring lower ring to be equipped with the sliding ring on the sliding ring support, the brush yoke is fitted with a contraceptive ring and is equipped with the last brush that corresponds with the sliding ring lower ring, the brush yoke lower ring is equipped with the lower brush that corresponds with the sliding ring lower ring, the brush yoke is fitted with a contraceptive ring and is equipped with outer wind deflector between the ring and the brush yoke lower ring, be equipped with interior wind deflector between the sliding ring is fitted with a contraceptive ring and the slip ring lower ring, form the cavity of bleeding between.
2. The carbon brush dust collection structure of the hydro-generator as claimed in claim 1, wherein the opposite surfaces of the upper ring and the lower ring of the slip ring are respectively provided with a groove, and the edge of the inner wind shield is fixed in the grooves of the upper ring and the lower ring of the slip ring in a sealing manner.
3. The carbon brush dust collection structure of the hydro-generator according to claim 1, wherein the outer wind shield is fixed to the upper ring of the brush holder and the lower ring of the brush holder through bolts.
4. The carbon brush dust collection structure of the hydro-generator according to claim 1, wherein the air suction pipeline comprises a hose and a carbon powder collection box communicated with the hose, a fan generating negative pressure to the hose is arranged in the carbon powder collection box, the outer wind shield is provided with an air suction opening, and the air suction opening is communicated with the hose.
5. The carbon brush dust collection structure of the hydro-generator according to claim 1, wherein through holes corresponding to the upper electric brush and the lower electric brush are formed in the outer wind shield, the upper electric brush and the lower electric brush penetrate through the through holes, and gaps between the upper electric brush and the corresponding through hole and gaps between the lower electric brush and the corresponding through hole are less than or equal to 3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021206261.6U CN212649247U (en) | 2020-06-24 | 2020-06-24 | Structure is collected to hydraulic generator carbon brush dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021206261.6U CN212649247U (en) | 2020-06-24 | 2020-06-24 | Structure is collected to hydraulic generator carbon brush dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212649247U true CN212649247U (en) | 2021-03-02 |
Family
ID=74771137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021206261.6U Active CN212649247U (en) | 2020-06-24 | 2020-06-24 | Structure is collected to hydraulic generator carbon brush dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212649247U (en) |
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2020
- 2020-06-24 CN CN202021206261.6U patent/CN212649247U/en active Active
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