Central air conditioning and heat pump system with cooling arrangement

A central air conditioning and heat pump system for a heat distribution system, comprising:

• a plurality of connecting pipes;
• a main heat exchange system, which comprises:
• a compressor having a compressor outlet and a compressor inlet;
• a first heat exchanger connected to said compressor through at least one of said connecting pipes, said first heat exchanger having a first communicating port and a second communicating port;
• and
• a second heat exchanger connected to said compressor and said first heat exchanger through at least one of said connecting pipes, said second heat exchanger having a first passage port and a second passage port;
• a refrigerant storage tank having a liquid inlet and a liquid outlet;
• and
• a cooling arrangement, which comprises:
• a cooling tower, which comprises:
• a tower casing having a cooling tower air inlet and a cooling tower air outlet;
• a fan provided in a vicinity of said cooling tower air outlet;
• a water storage tank provided in said tower casing for storing cooling water;
• a water distributor provided in said tower casing and connected to said water storage tank through at least one of said connecting pipes, said water distributor comprising at least one spraying head arranged to spray water at a predetermined direction,
• a pump connected between said water storage tank and said water distributor so that said cooling water in said water storage tank is arranged to be pumped to said water distributor through said pump;
• and
• a cooling heat exchanger provided in said tower casing and connected to said second heat exchanger, said first heat exchanger, and said refrigerant storage tank through at least one of said connecting pipes, said cooling heat exchanger having a cooling inlet and a cooling outlet, said water distributor being arranged to spray said cooling water on said cooling heat exchanger so that refrigerant passing through said cooling heat exchanger is allowed to perform heat exchange with said cooling water;
• said air conditioning and heat pump system being selectively operated between a comprehensive air conditioning mode and a heat pump mode, wherein in said comprehensive air conditioning mode, vaporous refrigerant is arranged to leave said compressor and guided to enter said second heat exchanger for releasing heat thereto, said refrigerant leaving said second heat exchanger being guided to flow into said cooling heat exchanger for further releasing heat to said water circulating in said cooling arrangement, said refrigerant leaving said cooling heat exchanger being guided to flow through said first heat exchanger for absorbing heat from said heat distribution system, said refrigerant leaving said first heat exchanger being guided to flow back to said compressor to complete an air conditioning cycle,
• wherein in said heat pump mode, vaporous refrigerant is arranged to leave said compressor and guided to flow into said first heat exchanger for releasing heat to said heat distribution system, said refrigerant leaving said first heat exchanger being guided to flow into said refrigerant storage tank for being temporarily stored, said refrigerant leaving said refrigerant storage tank being guided to flow to said second heat exchanger for absorbing heat from ambient air, said refrigerant leaving said second heat exchanger being guided to flow back to said compressor to complete a heat pump cycle.