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Variable-frequency waste heat generator unit

A technology of generator sets and generators, which is applied in the direction of engine components, machines/engines, mechanical equipment, etc., and can solve problems such as damage to the generator set and heat generated by the generator

Pending Publication Date: 2020-10-27
苏州必信环境科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the load changes, when the frequency is higher or lower than the rated speed within a certain range, the frequency is not synchronized with the mains, and it needs to be decoupled from the mains. During the decoupling, the electricity generated by the generator is not used on the grid, and it will become heat inside the generator. , easy to cause damage to the unit

Method used

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  • Variable-frequency waste heat generator unit

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0033] According to one aspect of the present invention, the present invention provides a frequency conversion waste heat generator set. Please combine Figure 1-3 , in various embodiments of the present disclosure, the frequency conversion waste heat generator set includes an evaporator 1, an expander 2, a generator 3, a condenser 4 and a refrigerant pump 5, the refrigerant side of the evaporator 1, the expander 2, and the condenser 4 The refrigerant side is connected to the refrigerant pump 5 in a closed loop, and the turbine shaft of the expander 2 is connected to the rotor of the generator 3, wherein the generator 3 is a variable frequency generator.

[0034] The generator 3 includes a frequency converter 6 built in the generator 3 , the frequency converter 6 includes a rectifier 7 connected to an inverter 8 . The rectifier 7 is used to convert the init...

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Abstract

The invention discloses a variable-frequency waste heat generator unit. The variable-frequency waste heat generator unit comprises an evaporator, an expansion machine, a generator, a condenser and a refrigerant pump; the refrigerant side of the evaporator, the expansion machine, the refrigerant side of the condenser and the refrigerant pump are in closed-loop connection; a rotor of the expansion machine is connected with a rotor of the generator; and the generator is a variable-frequency generator. According to the variable-frequency waste heat generator unit, due to the fact that the variable-frequency generator is adopted, the power generation frequency is irrelevant to the rotating speed of the unit and is continuously adjustable, the power generation frequency can be kept consistent with the mains supply frequency, when the load changes, there is no need to split with the mains supply, and unit damage caused by internal heating of the generator in the splitting period is avoided.

Description

technical field [0001] The invention relates to the field of waste heat power generation, in particular to a frequency conversion waste heat generator set. Background technique [0002] Traditional waste heat generating units are connected to the grid by means of gears or direct drives to ensure that the power generation frequency of the unit is consistent with the mains, and the speed of the unit is directly related to the power generation frequency. When the load changes, when the frequency is higher or lower than the rated speed within a certain range, the frequency is not synchronized with the mains, and it needs to be decoupled from the mains. During the decoupling, the electricity generated by the generator is not used on the grid, and it will become heat inside the generator. , easy to cause damage to the unit. Contents of the invention [0003] In order to solve the above problems in the prior art, the present invention provides a frequency conversion waste heat g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K13/00F01K13/02F01K9/00F01K9/02F01D15/10F01D17/10
CPCF01K13/00F01K13/02F01K9/00F01K9/003F01K9/02F01D15/10F01D17/105
Inventor 查晓冬魏辉甘国稳
Owner 苏州必信环境科技有限公司
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