Gas turbine plant, heat receiver, power generating device, and sunlight collecting system associated with solar thermal electric generation system

A heat receiver comprising:

• a heat receiving pipe which transmits heat to a thermal medium which receives heat from the sun and flows thereinside;
• a casing which houses the heat receiving pipe;
• and
• a first suspender for suspending the casing, one end of which suspender is fixed to the outside and the other end is fixed to the casing.

A sunlight collecting heat receiver provided with a heat receiving section through which a thermal medium flows, and which receives sunlight beams and transmits the heat to the thermal medium, wherein

• the heat receiving section is provided with:
• a plurality of heat exchange heat receiving pipes which receive sunlight beams;
• a thermal medium inlet header, to which an upstream end of the plurality of heat exchange heat receiving pipes in the flow direction of the thermal medium is connected, and which introduces the thermal medium toward the plurality of heat exchange heat receiving pipes;
• and
• a thermal medium outlet header, to which a downstream end of the plurality of heat exchange heat receiving pipes in the flow direction of the thermal medium is connected, and through which the thermal medium is derived from the plurality of heat exchange heat receiving pipes, and
• the thermal medium inlet header is arranged on the vertically lower side of the plurality of heat exchange heat receiving pipes, and the thermal medium outlet header is arranged on the vertically upper side of the plurality of heat exchange heat receiving pipes;
• and
• the plurality of heat exchange heat receiving pipes are such that the extending direction of the heat exchange heat receiving pipes, which reach from the upstream end to the downstream end, are arranged along the vertical direction.

A sunlight collecting heat receiver provided with:

• a casing having an opening section which collects sunlight beams;
• and
• a plurality of heat exchange heat receiving pipes which are housed in the casing, through which a thermal medium flows, and which receive sunlight beams collected in the casing and transmit the heat to the thermal medium, and
• a thermal insulation material is arranged on the inner surface of the casing, and the plurality of heat exchange heat receiving pipes are arranged at predetermined arrangement pitches in a state of having a clearance between adjacent the heat exchange heat receiving pipes, and the heat exchange heat receiving pipes are arranged in a state of having a predetermined distance from the inner surface of the thermal insulation material.

A sunlight collecting heat receiver device provided with:

• a heat receiver through which a thermal medium flows, and which receives sunlight beams collected by a plurality of reflecting mirrors and transmits the heat to the thermal medium;
• and
• a supporting section which supports the heat receiver, and
• opening sections, which allows sunlight beams collected by the plurality of reflecting mirrors to pass therethrough toward the heat receiver on a light path between the reflecting mirrors and the heat receiver, are formed in the supporting section, and
• at least one of the opening sections is opened so that sunlight beams can be irradiated along the north-south direction onto the heat receiver.

A sunlight collecting system provided with:

• a mirror which has a focal point and reflects sunlight beams;
• a light receiving section which receives reflected light from the mirror;
• and
• an optical path which is arranged between the mirror and the light receiving section, and which guides the reflected light from the mirror to the light receiving section, and
• the optical path has a first optical component which converts light beams collected on the focal point into parallel light beams, and a second optical component which guides the parallel light beams to the light receiving section.

A power generating device provided with:

• a heat receiver which receives sunlight beams and supplies a thermal medium having a heat amount according to the received light beams;
• a generator which increases/decreases the driving force according to the amount of supplied electric power when electric power is supplied, and which generates electric power of a power generation amount according to performed control when the electric power is not supplied;
• a control device which detects the heat amount and supplies the electric power to the generator or which controls the power generation amount of the generator so as to compensate variations in the detected heat amount;
• and
• a turbo machine which is driven by the thermal medium supplied from the heat receiver, and by the driving force of the generator.

A power generating device comprising:

• a heat receiver which receives sunlight beams and supplies a thermal medium having a heat amount according to the received light beams;
• a control device which detects the heat amount;
• a generator which is driven according to an excited magnetic force;
• a turbo machine which is driven by the thermal medium supplied from the heat receiver and by the generator;
• a heat amount prediction section which predicts transition of the heat amount;
• and
• an exciter which, in a case where the heat amount is predicted by the heat amount prediction section to recover to a predetermined heat amount, excites the generator according to the heat amount detected by the control device so that the rotation speed of the turbo machine becomes a predetermined rotation speed.

A driving control method of a power generating device including:

• a step in which a heat receiver receives sunlight beams and supplies a thermal medium having a heat amount according to the received light beams;
• a step in which in the case where electric power is supplied, a generator increases/decreases the driving force according to the supplied electric power amount, and in the case where the electric power is not supplied, it generates electric power of a power generation amount according to the performed control;
• a step in which a control device detects the heat amount, and supplies the electric power to the generator or controls the power generation amount of the generator so as to compensate variations in the detected heat amount;
• and
• a step in which a turbo machine is driven by the thermal medium supplied from the heat receiver and by the driving force of the generator.