Multi-machine-head single-return-stroke segmented compression type water chilling unit

Abstract

The invention discloses a multi-machine-head single-return-stroke segmented compression type water chilling unit. The multi-machine-head single-return-stroke segmented compression type water chilling unit comprises a combined condenser and a combined evaporator; the combined condenser is formed by sequentially connecting and combining a plurality of segmented condensers, and condenser pipe bundles are arranged in the combined condenser and used for all the segmented condensers; the combined evaporator is formed by sequentially connecting and combining a plurality of segmented evaporators, evaporator pipe bundles are arranged in the combined evaporator and used for being used by all the segmented evaporators, and the segmented condensers correspond to the segmented evaporators in a one-to-one mode; and compressors are connected between the segmented condensers and the segmented evaporators which correspond to each other, and the compressor, the segmented condenser and the segmented evaporator form a refrigeration function section. The refrigerating capacity and the chilled water flow can be independently controlled according to actual requirements, the problem that the refrigerating capacity and the chilled water flow of an existing water chilling unit are difficult to match is solved, and therefore the good using effect of the water chilling unit is guaranteed.

Description

technical field [0001] The invention relates to the technical field of chillers, in particular to a multi-head, single-return segmental compression chiller. Background technique [0002] The current chillers use the cooling capacity as the primary parameter, and then determine the rated chilled water flow rate based on the rated supply and return water temperature. There is a relatively fixed relationship between the cooling capacity and the chilled water flow rate, and the chilled water flow rate is not based on It is determined by the flow rate required at the end of the project. During the operation of the chiller, the cooling capacity and the chilled water flow are often inconsistent. Specifically, under a certain load condition, the cooling capacity of a single chiller can meet the cooling capacity demand of the terminal, but the flow provided by the chiller cannot Satisfy the flow demand at the end. Because chilled water is the carrier of cold energy, insufficient ch...

AI Technical Summary

Problems solved by technology

Therefore, during most of the running time, the chilled water flow of the chiller is in a situation that does not match the cooling capacity, resulting in a low efficiency of the chiller.

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