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CN-224233495-U - Generator carbon brush room sweeps device

CN224233495UCN 224233495 UCN224233495 UCN 224233495UCN-224233495-U

Abstract

The utility model discloses a generator carbon brush chamber purging device which comprises a generator set, a purging module and a purging module, wherein the generator set comprises a motor body, a rotor slip ring and a carbon brush assembly, the carbon brush chamber is arranged on the motor body, the rotor slip ring is rotatably arranged in the carbon brush chamber, the carbon brush assembly is arranged in the carbon brush chamber and is in contact with the outer surface of the rotor slip ring, the purging module comprises a fan assembly, a main air inlet pipe, purging air pipes and an exhaust pipe, at least two purging air pipes are circumferentially arranged at intervals on the periphery of the carbon brush assembly, an air outlet of each purging air pipe faces to the contact surface of the carbon brush assembly and the rotor slip ring, each purging air pipe is communicated with an air supply port of the fan assembly through the main air inlet pipe, and an air inlet end of the exhaust pipe is communicated with the carbon brush chamber. The generator carbon brush chamber purging device can purge and clean the contact surface of the rotor slip ring and the carbon brush assembly at multiple angles.

Inventors

  • WU ZHAOPENG
  • WU JIAYONG
  • SHI ZENGGUANG
  • ZHAI LIANG

Assignees

  • 中山市北部公用环保能源有限公司

Dates

Publication Date
20260512
Application Date
20250520

Claims (9)

  1. 1. A generator carbon brush chamber purge apparatus, comprising: The generator set comprises a motor body (11), a rotor slip ring (12) and a carbon brush assembly (13), wherein a carbon brush chamber (111) is arranged on the motor body (11), the rotor slip ring (12) is rotatably arranged in the carbon brush chamber (111), and the carbon brush assembly (13) is arranged in the carbon brush chamber (111) and is in contact with the outer surface of the rotor slip ring (12); The blowing module comprises a fan assembly (21), a main air inlet pipe (221), blowing air pipes (222) and exhaust pipes (223), wherein at least two blowing air pipes (222) which are circumferentially arranged at intervals are arranged on the periphery of the carbon brush assembly (13), the air outlet of each blowing air pipe (222) faces the contact surface of the carbon brush assembly (13) and the rotor slip ring (12), each blowing air pipe (222) is communicated with an air supply opening of the fan assembly (21) through the main air inlet pipe (221), the air inlet end of the exhaust pipe (223) is communicated with the carbon brush chamber (111), and And the control module is respectively and electrically connected with the motor body (11) and the fan assembly (21).
  2. 2. The generator carbon brush chamber purging device according to claim 1, wherein an arc-shaped spray pipe (223) is connected to an air outlet of the purging air pipe (222), the arc-shaped spray pipe (223) is arranged along the periphery of a carbon brush of the carbon brush assembly (13), a plurality of spray holes are formed in the arc-shaped spray pipe (223), and air outlet directions of the spray holes face to contact surfaces of the carbon brush assembly (13) and the rotor slip ring (12).
  3. 3. The carbon brush chamber purging device of claim 1, wherein an air filter (24) is arranged at the air suction inlet of the fan assembly (21), and the air outlet end of the air suction pipe (223) is communicated with the air suction inlet of the fan assembly (21) through the air filter (24), or The air outlet end of the exhaust pipe (223) is communicated with the outside atmosphere, and an air filter (24) and an exhaust fan electrically connected with the control assembly are arranged on the air outlet end of the exhaust pipe (223).
  4. 4. A generator carbon brush chamber purging device as claimed in claim 3, wherein a pressure sensor for detecting wind pressure is provided on the air filter (24), and the pressure sensor is electrically connected to the control unit.
  5. 5. The generator carbon brush chamber purging device according to claim 1, wherein a water-vapor separator (25) is provided on the main air inlet pipe (221).
  6. 6. The generator carbon brush chamber purging device according to claim 1, characterized in that a temperature sensor (26) and/or a humidity sensor are/is arranged in the carbon brush chamber (111), the temperature sensor (26) is electrically connected with the control assembly and is used for detecting the temperature of the contact surface, and the humidity sensor is electrically connected with the control assembly and is used for detecting the humidity in the carbon brush chamber (111).
  7. 7. The generator carbon brush chamber purging device according to any one of claims 1 to 6, wherein an observation port communicating with the carbon brush chamber (111) is provided on the motor body (11), and an observation window (14) for opening or closing the observation port is provided at the observation port.
  8. 8. The generator carbon brush chamber purging device according to any one of claims 1 to 6, wherein at least one first heater (271) electrically connected to the control unit is provided in the carbon brush chamber (111), and/or a second heater (272) electrically connected to the control unit is provided in the main air inlet pipe (221).
  9. 9. The generator carbon brush chamber purging device according to claim 8, wherein at least one water absorbing assembly (28) for absorbing water molecules is provided in the carbon brush chamber (111), and the first heater (271) is provided on the water absorbing assembly (28).

Description

Generator carbon brush room sweeps device Technical Field The utility model relates to the technical field of generators, in particular to a generator carbon brush chamber purging device. Background The generator carbon brush chamber is mainly composed of a carbon brush and a rotor slip ring. The carbon brush is a device for transmitting electric energy between the dynamic and static of the rotary machine in the generator, and ensures that direct current rectified by the excitation rectifier is transmitted to a rotating rotor slip ring through the carbon brush so as to generate a continuous rotating magnetic field for a rotor of the generator. For the generator, the carbon brush and the rotor slip ring are both a weak link and a key component. The existing generator carbon brush and rotor slip ring have the following faults in the use process: 1. The carbon brush is easy to be stained, the carbon brush is easy to be blocked and can not move freely after long-time running, the carbon brush is in poor contact with the slip ring, and the current distribution is uneven, so that the phenomena of heating and ignition are caused, and the slip ring of the generator is caused to generate ring fire when serious, and the slip ring is burnt to cause loss of magnetism and forced to stop; 2. Dust, greasy dirt or carbon powder is deposited at the slip ring of the rotor, so that the insulation performance of the rotor of the generator is reduced; 3. The generator has longer shutdown time, and the insulation resistance of the rotor is reduced below an allowable value due to the damp. Disclosure of Invention The utility model aims to solve one of the problems existing in the related art to at least a certain extent, and therefore, the utility model provides the generator carbon brush chamber purging device which can purge and clean and maintain the contact surface of the rotor slip ring and the carbon brush assembly at multiple angles and is beneficial to safe and stable long-time operation of a generator set. According to the generator carbon brush chamber purging device, the following technical scheme is adopted: The generator carbon brush chamber purging device comprises a generator set, a purging module, a control module and a control module, wherein the generator set comprises a motor body, a rotor slip ring and a carbon brush assembly, the carbon brush chamber is arranged on the motor body, the rotor slip ring is rotatably arranged in the carbon brush chamber, the carbon brush assembly is arranged in the carbon brush chamber and is in contact with the outer surface of the rotor slip ring, the purging module comprises a fan assembly, a main air inlet pipe, purging air pipes and exhaust pipes, at least two purging air pipes are circumferentially arranged at intervals on the periphery of the carbon brush assembly, the air outlet of each purging air pipe faces to the contact surface of the carbon brush assembly and the rotor slip ring, each purging air pipe is communicated with an air supply port of the fan assembly through the main air inlet pipe, the air inlet end of the exhaust pipe is communicated with the carbon brush chamber, and the control module is respectively and electrically connected with the motor body and the fan assembly. In some embodiments, an arc-shaped spray pipe is connected to the air outlet of the blowing air pipe, the arc-shaped spray pipe is arranged along the periphery of the carbon brush assembly, a plurality of spray holes are formed in the arc-shaped spray pipe, and the air outlet directions of the spray holes face the contact surface of the carbon brush assembly and the rotor slip ring. In some embodiments, an air filter is arranged at the air suction inlet of the fan assembly, the air outlet end of the exhaust tube is communicated with the air suction inlet of the fan assembly through the air filter, or the air outlet end of the exhaust tube is communicated with the outside atmosphere, and the air filter and the exhaust fan electrically connected with the control assembly are arranged on the air outlet end of the exhaust tube. In some embodiments, a pressure sensor for detecting wind pressure is provided on the air filter, and the pressure sensor is electrically connected with the control assembly. In some embodiments, a water-vapor separator is provided on the primary air intake pipe. In some embodiments, a temperature sensor and/or a humidity sensor are/is provided in the carbon brush chamber, the temperature sensor is electrically connected with the control assembly and is used for detecting the temperature of the contact surface, and the humidity sensor is electrically connected with the control assembly and is used for detecting the humidity in the carbon brush chamber. In some embodiments, an observation port communicated with the carbon brush chamber is arranged on the motor body, and an observation window for opening or closing the observation port is arranged at the observation port.