A control system and method for starting and stopping compressors of a refrigeration parallel unit
By increasing the perception of start and stop signals in the compressor control system of the refrigeration parallel unit, and achieving low load start and step-by-step loading at the end of maintenance and maintenance, the problem of direct 100% start of the compressor leads to the burning of the motor, ensuring the stable and safe operation of the system.
CN110071663BActive Publication Date: 2025-04-01BEIJER REF (WUXI) CO LTD
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Patent Information
- Application Number
- CN201910419298.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-05-20
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2039-05-20
AI Technical Summary
Technical Problem
During the compressor maintenance and maintenance of the refrigeration parallel unit, the controller cannot sense the compressor shutdown state, resulting in the compressor starting directly 100% and may cause the motor to burn.
Method used
Avoid overloading of the compressor motor by increasing the controller's perception of the start and stop signal in the compressor control system and achieving low load start and step-by-step loading at the end of compressor maintenance and maintenance.
Benefits of technology
It effectively avoids the burning of the compressor motor, ensures the safe and reasonable operation of the compressor, and improves the stability of the entire refrigeration system.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention provides a control system and method for starting and stopping a compressor of a refrigeration parallel unit, which increases the controller's perception of the compressor start and stop signal, and when the compressor is overhauled and maintained and put into use again, the compressor can be started at low load to avoid the burning of the compressor motor; the control system comprises a compressor main circuit module and a compressor control circuit module and a controller circuit module electrically connected thereto, the compressor main circuit module comprises a three-phase four-wire power supply and a compressor unit connected in parallel to the three-phase four-wire power supply, the compressor control circuit module comprises a manual start and stop button, the controller circuit module comprises a controller U, the compressor control circuit module also comprises a control relay and a loading circuit module, the control relay and the loading circuit module are respectively connected to the manual start and stop button, the loading circuit module comprises a loading relay, and the control relay and the loading relay are both connected to the controller U.
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