Heat energy supply system and method, and reconstruction method of the system

A heat energy supply system comprising:

• a boiler for heating a heat medium and producing steam;
• a heat pump including a steam turbine driven by the steam supplied from said boiler, and a heat exchanger for heating the heat medium, which has been preheated in said boiler, by employing waste heat or heat obtained from environment, thereby producing the steam at a setting temperature;
• a steam supply line for supplying the steam discharged from said steam turbine and the steam heated by said heat exchanger to a heat utilization facility;
• and
• a circulation pump for circulating, to said boiler, the heat medium condensed after being utilized as a heat source in said heat utilization facility.

A heat energy supply system comprising:

• an engine for converting combustion energy to a driving force;
• a boiler for heating a heat medium by exhaust gas of said engine and producing steam;
• a heat pump including a steam turbine driven by the steam supplied from said boiler, and a heat exchanger for heating the heat medium, which has been preheated in said boiler, by employing waste heat or heat obtained from environment, thereby producing the steam at a setting temperature;
• a steam supply line for supplying the steam discharged from said steam turbine and the steam heated by said heat exchanger to a heat utilization facility;
• and
• a circulation pump for circulating, to said boiler, the heat medium after being utilized as a heat source in said heat utilization facility.

A heat energy supply method comprising the steps of:

• driving a steam turbine by steam obtained by heating a heat medium in a boiler;
• heating the heat medium in a heat exchanger by employing waste heat or heat obtained from environment, thereby producing the steam at a setting temperature;
• and
• supplying the steam discharged from said steam turbine and the steam heated by said heat exchanger to a heat utilization facility.

A heat energy supply method comprising the steps of:

• driving a steam turbine by steam obtained by heating a heat medium in a boiler;
• heating the heat medium, which has been preheated in said boiler, in a heat exchanger by employing waste heat or heat obtained from environment, thereby producing the steam at a setting temperature;
• supplying the steam discharged from said steam turbine and the steam heated by said heat exchanger to a heat utilization facility;
• and
• circulating, to said boiler, the heat medium condensed after being utilized as a heat source in said heat utilization facility.

A heat energy supply method comprising the steps of:

• heating a heat medium in a boiler by exhaust gas of an engine and producing steam;
• driving a heat turbine by the steam supplied from said boiler;
• heating the heat medium, which has been preheated in said boiler, in a heat exchanger by employing waste heat or heat obtained from environment, thereby producing the steam at a setting temperature;
• supplying the steam discharged from said steam turbine and the steam heated by said heat exchanger to a heat utilization facility;
• and
• circulating, to said boiler, the heat medium condensed after being utilized as a heat source in said heat utilization facility.

A method of reconstructing a heat energy supply system, the method comprising the steps of:

• modifying an existing boiler for producing steam such that a heat medium flows through said boiler;
• and
• additionally installing a heat pump including a steam turbine driven by the steam obtained by heating the heat medium in said boiler, and a heat exchanger for heating the heat medium by employing waste heat or heat obtained from environment, thereby producing the steam at a setting temperature;
• and
• a steam supply line for supplying the steam discharged from said steam turbine and the steam heated by said heat exchanger to a heat utilization facility.

A method of reconstructing a heat energy supply system, the method comprising the steps of:

• modifying an existing boiler for producing steam such that a heat medium flows through said boiler;
• and
• additionally installing a heat pump including a steam turbine driven by the steam obtained by heating the heat medium in said boiler, and a heat exchanger for heating the heat medium, which has been preheated in said boiler, by employing waste heat or heat obtained from environment, thereby producing the steam at a setting temperature;
• a steam supply line for supplying the steam discharged from said steam turbine and the steam heated by said heat exchanger to a heat utilization facility, and
• a circulation pump for circulating, to said boiler, the heat medium condensed after being utilized as a heat source in said heat utilization facility.

A method of reconstructing a heat energy supply system, the method comprising the steps of:

• mounting, to an existing engine for converting combustion energy to a driving force, a boiler for heating a heat medium by exhaust gas of said engine and producing steam;
• and
• additionally installing a heat pump including a steam turbine driven by the steam supplied from said boiler, and a heat exchanger for heating the heat medium, which has been preheated in said boiler, by employing waste heat or heat obtained from environment, thereby producing the steam at a setting temperature,
• a steam supply line for supplying the steam discharged from said steam turbine and the steam heated by said heat exchanger to a heat utilization facility, and
• a circulation pump for circulating, to said boiler, the heat medium condensed after being utilized as a heat source in said heat utilization facility.

A heat energy supply system comprising:

• a boiler for heating water and producing steam;
• a heat pump including a steam turbine driven by the steam supplied from said boiler, a heat exchanger for heating the water by employing waste heat or heat obtained from environment, thereby producing steam, a plurality of compressors for compressing the steam produced by said heat exchanger, and a mixer for supplying water to a steam flowing line between said compressors;
• and
• a steam supply line for supplying the steam discharged from said steam turbine and the steam heated by said compressor to a heat utilization facility.