Ice-storage-type heat-source tower heat pump system device and methods

Abstract

The invention provides an ice-storage-type heat-source tower heat pump system device which comprises a heat-source tower, a heat pump unit, an ice crystal blocking device, a crystallization promotingdevice, an ice storage pool, a solution pool, an ice crystal filter, a preheater, an ice melting pump, a circulating pump, an ice melting heat exchanger, a hot water inlet valve, a cooling water inletvalve, a solution water inlet valve, an ice storage pool liquid inlet valve, a cold water outlet valve, a cold water inlet valve, a cold water bypass valve, an ice-making water inlet valve, an ice melting valve, a circulating pump adjusting valve, a cooling water outlet valve, a hot water outlet valve, a heat-source tower circular pump, a solution pool liquid inlet valve and an anti-freezing solution water inlet valve. The invention further provides four using methods of an ice-storage-type heat-source tower heat pump system, wherein the four using methods include a general refrigeration mode, an ice cold-storage mode (joint operation of ice making and ice melting), an ice cold-storage mode (an ice single melting mode) and a winter heating mode. An anti-freezing solution is regenerated ina frozen mode through a super-cooling method, and the system is rich in function and simple in type.

Description

technical field [0001] The invention relates to the technical field of air conditioning and refrigeration, in particular to an ice storage type heat source tower heat pump system device and method. Background technique [0002] Compared with the air source heat pump, the heat source tower heat pump can solve the frosting problem in winter conditions, and can run continuously without stopping. Its heating efficiency is slightly higher than that of the air source heat pump. In summer conditions, the heat source tower After switching to the cooling tower mode, the entire heat pump system becomes a water-cooled unit, and its cooling efficiency is much higher than that of the air source heat pump, which has great energy-saving advantages. [0003] The main problem existing in the heat source tower heat pump is antifreeze regeneration, and antifreeze regeneration technology is also one of the core technologies of the heat source tower heat pump system. The technical route of anti...

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Problems solved by technology

The patent application with the application number 201610603582.1 proposes a refrigeration regeneration air source heat pump system. This system does not require an additional refrigeration system. The system is relatively simple, but its regeneration principle is gradual refrigeration regeneration, and the regeneration heat exchanger has a huge area. Moreover, the refrigerated regenerative heat exchanger needs to be frequently switched between freezing and deicing modes. In addition, the solute entrainment problem of the ice layer is not considered, which is prone to serious solute loss in actual operation.

The patent application with application number 201610703659.2 proposes a refrigeration regeneration heat source tower system based on vacuum evaporation. This system requires a separate vacuum refrigeration concentration system to complete the regeneration of antifreeze solution. The system has a high ice crystal generation rate, but it is easy to generate secondary steam with liquid problems and vacuum maintenance problems, and the system is more complicated

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