MULTIPLE HEAT SOURCE MULTI-HEAT PUMP SYSTEM HAVING AIR HEAT SOURCE COLD STORAGE OPERATION OR HEAT STORAGE OPERATION AND WATER HEAT SOURCE COLD STORAGE AND HEAT STORAGE CONCURRENT OPERATION OR HEAT STORAGE AND COLD STORAGE CONCURRENT OPERATION, AND CONTROL METHOD

摘要

The present invention relates to a multiple heat source multi-heat pump system having an air heat source cold storage operation or heat storage operation and a water heat source cold storage and heat storage concurrent operation or heat storage and cold storage concurrent operation, and a control method thereof. More particularly, the aim of the present invention is to provide a multiple heat source multi-heat pump and a control method thereof, wherein the multiple heat source multi-heat pump uses an air heat source and a water heat source as the heat sources of a heat pump to produce cold water from a vaporizer and stores the cold water in a cold storage tank, thereby applying the cold water to a cooling load, and at the same time, even without a separate gas heat source hot water supply device, collects waste heat that is selectively disposed from a water cooling type and air cooling type condenser to use the waste heat for hot water supply. The present invention has a structure in which the air heat source and the water heat source are used as the heat sources of the heat pump and when used concurrently can selectively operate in a total of four kinds of operation modes (operation mode control), i.e., heat storage, cold storage, air heat source, and water heat source-based operation modes. Here, automatic conversion control between heat storage only, cold storage only, concurrent heat storage and cold storage, concurrent cold storage and heat storage, and defrosting operation mode (heat storage only, cold storage only, concurrent heat storage and cold storage, concurrent cold storage and heat storage, and defrosting operation mode control) within each operation mode can be performed by using a four-way electronic valve.