Refrigerant system with speed-changing driver

Refrigerant system with speed-changing driver

  • CN 101,326,408 B
  • Filed: 10/17/2005
  • Issued: 11/13/2013
  • Est. Priority Date: 10/17/2005
  • Status: Active Grant
First Claim
Patent Images

1. power control system, be used for comprising the system of steam compression system, and described steam compression system comprises:

  • Motor compressor motor with normal service speed;

    Condenser;

    Evaporimeter;

    Condenser fan motor or comprise the condenser pump of condenser pump motor;

    WithEvaporator fan motor or comprise the evaporimeter pump of evaporimeter pump motor;

    Described power control system comprises;

    be connected at least one the speed change driver in described motor compressor motor and described condenser fan motor, described evaporator fan motor, described condenser pump motor and described evaporimeter pump motor,Be connected in motor compressor motor and described condenser fan motor, described evaporator fan motor, described condenser pump motor and described evaporimeter pump motor described at least one and can be connected to the shunting device of power source,Wherein, described shunting device can selectively switch between the first and second positions,Wherein, described primary importance offers described speed change driver with electrical power from power source, cause thus in motor compressor motor and described condenser fan motor, described evaporator fan motor, described condenser pump motor and described evaporimeter pump motor described at least one with the speed different from normal service speed operation, andWherein, the described second place by the described speed change driver of bypass with electrical power from power source offer described motor compressor motor and described condenser fan motor, described evaporator fan motor, described condenser pump motor and described evaporimeter pump motor described at least one, cause thus in motor compressor motor and described condenser fan motor, described evaporator fan motor, described condenser pump motor and described evaporimeter pump motor described at least one move with normal service speed.2. system according to claim 1, wherein, described shunting device comprises two position switch and bypass loop, and wherein, described bypass loop is connected between described speed change driver and power source.3. system according to claim 1, wherein, described speed change gear is variable frequency drives, and wherein, described motor is alternating current motor.4. system according to claim 1, wherein, described speed change gear is voltage control module, and wherein, described motor is d.c. motor.5. power control system according to claim 1, described system further comprises;

    The refrigerant cools circuit, be used for drawing the part of cold-producing medium and providing cooling for power control system from the main refrigerant circuit of vapor compression system;

    AndBe used for regulating the valve by the cold-producing medium stream of described refrigerant cools circuit.6. refrigerant system comprises;

    Steam compression system, it has;

    the compressor that comprises compressor motor;

    Condenser;

    Evaporimeter;

    Condenser fan motor or comprise the condenser pump of condenser pump motor;

    With evaporator fan motor or comprise the evaporimeter pump of evaporimeter pump motor;

    WithPower control system, it has;

    speed change gear;

    And shunting device;

    Wherein, described shunting device is connected at least one in described compressor motor and described condenser fan motor, described evaporator fan motor, described condenser pump motor and described evaporimeter pump motor and can be connected to power source,Wherein, described shunting device can selectively switch between the first and second positions,Wherein, described primary importance offers described speed change gear with electrical power from power source, cause thus in described compressor motor and described condenser fan motor, described evaporator fan motor, described condenser pump motor and described evaporimeter pump motor described at least one with the speed different from normal service speed operation, andWherein, the described second place by the described speed change gear of bypass with electrical power from power source offer described compressor motor and described condenser fan motor, described evaporator fan motor, described condenser pump motor and described evaporimeter pump motor described at least one, cause thus in described compressor motor and described condenser fan motor, described evaporator fan motor, described condenser pump motor and described evaporimeter pump motor described at least one with described normal service speed operation.7. system according to claim 6, wherein, described speed change gear is variable frequency drives, and wherein, described compressor motor is alternating current motor.8. system according to claim 6, wherein, described speed change gear is voltage control module, and wherein, described compressor motor is d.c. motor.9. system according to claim 6, wherein, described shunting device comprises two position switch and bypass loop, and wherein, described bypass loop is connected between described speed change gear and power source.10. system according to claim 6, wherein, described speed change gear is variable frequency drives, and wherein, in described condenser fan motor, described evaporator fan motor, described condenser pump motor or described evaporimeter pump motor described at least one be alternating current motor.11. system according to claim 6, wherein, described speed change gear is voltage control module, and wherein, in described condenser fan motor, described evaporator fan motor, described condenser pump motor or described evaporimeter pump motor described at least one be d.c. motor.12. system according to claim 6, wherein, described shunting device comprises two position switch and bypass loop, and wherein, described bypass loop is connected between described speed change gear and power source.13. refrigerant system according to claim 6, it further comprises;

    The refrigerant cools circuit, be used for drawing the part of cold-producing medium and providing cooling for power control system from the main refrigerant circuit of vapor compression system;

    AndBe used for regulating the valve by the cold-producing medium stream of described refrigerant cools circuit.14. the operation refrigerant system, to meet the method for the Space Thermal load of regulating, comprising;

    Steam compression system with motor compressor motor and electrical equipment motor is provided, described electrical equipment motor drives one and is selected from basically by compressor, condenser fan, condenser pump, evaporator fan, evaporimeter pump and the element of the group that forms of any combination whereinDetermine whether described motor compressor motor will move the Space Thermal load of regulating to meet with the speed different from normal service speed with the electrical equipment motor,The speed of described motor compressor motor and electrical equipment motor of regulating, to meet the Space Thermal load of regulating, wherein, is regulated described speed by speed change gear, andIf can, by with the described normal service speed described motor compressor motor of operation and the regulating load of electrical equipment motor meeting spatial, by the described speed change gear of bypass, electrical power be offered described motor compressor motor and electrical equipment motor.15. method according to claim 14 also comprises;

    With exist additional inverter loss, compare the operating parameter of monitoring refrigerant system and carry out the described speed change gear of bypass based on the efficiency with the industrial frequency operation at least in part with the speed operation that the speed that provides by industrial frequency is provided.16. method according to claim 15 also comprises;

    Described operating parameter via at least one transducer monitoring refrigerant system of selecting the group from comprising temperature transducer, pressure transducer, current transducer, power changing device, torque transducer, slip transducer or their any combination.17. the method for operation refrigerant system according to claim 14, it is further comprising the steps;

    Being used to provides cooling from the cold-producing medium of described vapor compression system for described speed change gear.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×