Cold volume governing system for regionally concentrated cold supply second-stage cold volume exchange station

Abstract

The present invention provides cold volume governing system for regionally concentrated cold supply second-stage cold volume exchange station, including a second-stage cold volume exchange station controller and a remote, local supervisory computer respectively connecting to the converter. The second-stage cold volume exchange station controller is connected with a cold architecture cold-supplying pipe net supply water temperature sensor, a return water temperature sensor, a frequency conversion cycle water pump, a backwater-supplying differential pressure transducer and an outdoor environment humiture sensor through the analog quantity input module, and connected with the cold architecture cold-supplying pipe net frequency conversion cycle water pump through the digital quantity input module, an analog quantity, a digital quantity output module, also connected with the second-stage cold volume exchange station plate exchanger secondary side backwater flow control valve and the by-pass control valve through the analog quantity input, the output module. The invention can greatly advance the cold architecture freeze supply water temperature and the second-stage cold volume exchange station plate exchanger secondary side backwater temperature, which has good energy saving effect and good popularizing applied cost.

Description

technical field

[0001] The invention relates to a central air-conditioning energy-saving control technology, in particular to a cooling capacity adjustment system and an adjustment method of a secondary cooling capacity exchange station for regional centralized cooling. Background technique

[0002] Due to its advantages of high energy efficiency, low environmental heat pollution, effective reduction of equipment capacity and reduction of machine room floor space, regional centralized cooling is being rapidly promoted and used worldwide, and has become an important aspect of the development of modern air conditioning. However, in the current regional centralized cooling system, there are still the following management and technical problems in the cooling capacity adjustment of the secondary cooling capacity exchange station, which prevents the various advantages of the regional centralized cooling system from being fully utilized and better reflected:

[0003] (1) It is dif...

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