Compressor for heat exchange system, heat exchange system and compressor operation control method
A technology of heat exchange system and compressor, which is applied in the field of heat exchange system and compressor operation control, and can solve problems affecting the normal operation of the system
Pending Publication Date: 2021-09-10
CARRIER CORP
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- Application Information
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Problems solved by technology
[0003] However, it has been found that in some applications, such as when the two-speed motor is switched from low speed to high speed to force the compressor to have greater suction flow, the torque required to operate the compressor may exceed that of the two-speed motor. The maximum torque that can be provided by itself (such as figure 1 A part of the area shown in the curve A1), thus causing the compressor to stop running, which will affect the normal operation of the entire system
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[0030] First of all, it should be noted that the structure, composition, steps, features and features of the compressor used in the heat exchange system, the heat exchange system including the compressor, and the compressor operation control method of the present invention will be specifically described below by way of example. advantages, etc., but all descriptions are for illustration only and do not constitute any limitation to the present invention. In this article, the technical terms "first" and "second" are only used for the purpose of distinguishing expressions and are not intended to indicate their order and relative importance, etc. The technical term "connection (or connection and other similar terms)" covers A certain component is directly connected to another component and / or indirectly connected to another component.
[0031] In addition, for any single technical feature described or implied in the embodiments mentioned herein, the present invention still allows ...
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The invention relates to a compressor for a heat exchange system, the heat exchange system comprising the compressor and a compressor operation control method. The compressor comprises a driving device which is used for driving the compressor and at least has a first working condition and a second working condition, the output power of the driving device under the second working condition is larger than that under the first working condition, and the compressor is provided with at least one up-down downloading flow path. The control device is arranged to be started before the driving device is switched from the first working condition to the second working condition so that the air suction flow of the compressor can be reduced, switching is conducted till the current operation parameters of the compressor reach preset values, and the air suction flow is increased after switching is completed and the compressor is in the required working state. The compressor for a heat exchange system is easy to install, use and maintain, low in cost and capable of effectively ensuring that the working condition switching process of the compressor is safe, reliable and efficient.
Description
technical field [0001] The invention relates to the technical field of heat exchange, in particular to a compressor used in a heat exchange system, a heat exchange system including the compressor, and a compressor operation control method. Background technique [0002] Two-speed motors have been configured in some existing compressors, such as screw compressors, so that the compressor can operate under different working conditions as required, so as to improve, for example, IPLV (Integrated Part Load Value, integrated part load performance coefficient) and other performance indicators. This type of two-speed motor was originally invented by Swedish engineer Robert Dahlander. It usually uses special windings and changes the number of poles by changing the external connection method of the motor, thus providing two working speeds, high speed and low speed. [0003] However, it has been found that in some applications, such as when the two-speed motor is switched from low spee...
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Patent Timeline
Login to View More IPC IPC(8): F04B35/04F04B39/10F04B49/22F04B49/24
CPCF04B35/04F04B39/10F04B49/22F04B49/24F25B1/00F25B2600/0262F04C18/16F04C28/125F04C29/124F04B2203/0201F04B2203/0207F04B49/225F04B7/02
Inventor 王进王利峰魏华雄
Owner CARRIER CORP