Solar concentrating heat receiver and system thereof

A solar concentrating heat receiving system comprising:

• a plurality of reflecting minors which are placed on a ground to reflect sunrays;
• a tower unit which is erected from the ground, and
• a solar concentrating heat receiver which is supported by the tower unit, the solar concentrating heat receiver including:
• a casing which is installed at a base portion to have an opening portion into which sunlight is made incident;
• a heat receiving portion which is accommodated inside the casing so that a working fluid flows therethrough and receives heat from sunlight made incident from the opening portion, thereby raising a temperature of the working fluid;
• and
• a hanging member in which one end of the heat receiving portion is coupled to the base portion and the other end thereof is loosely inserted into the casing, thereby supporting in a hanging manner the heat receiving portion inside the casing to allow deformation of the heat receiving portion by thermal elongation in a vertical direction.