Open-loop natural thermal energy releasing system with partial reflux

An open-loop natural thermal energy releasing system comprising:

• a heat gaining device (101) arranged to transfer thermal energy from a natural thermal energy storage body (100) to a gaseous or liquid heat exchange fluid (104) as the heat exchange fluid (104) passes through at least one flowpath inside the heat gaining device (101);
• a first pipeline structure (301) comprising an arc-shaped fluid chamber (108), a first fluid inlet/outlet port (3011) and a second fluid inlet/outlet port (3012), wherein the first fluid inlet/outlet port (3011) connects the arc-shaped fluid chamber (108) to the heat gaining device (101), and wherein the second fluid inlet/outlet port (3012) connects the first pipeline structure (301) to a temperature differentiation body (103) to enable the heat exchange fluid (104) to pass between the first pipeline structure (301) and the temperature differentiation body (103) and release the thermal energy to the temperature differentiation body (103);
• and
• a second pipeline structure (401) comprising a third fluid inlet/outlet port (4011) and a fourth fluid inlet/outlet port (4012), wherein the third fluid inlet/outlet port (4011) connects the second pipeline structure (401) to the temperature differentiation body (103), wherein the fourth fluid inlet/outlet port (4012) connects the second pipeline structure (401) to the heat gaining device (101), and wherein the second pipeline structure (401) is arranged to limit a flow speed of the heat exchange fluid (104);
• wherein a combined volume of the arc-shaped fluid chamber (108) and the first pipeline structure (301) through which the heat exchange fluid (104) can flow is relatively larger than a volume of the second pipeline structure (401) through which the heat exchange fluid (104) can flow, and therefore a total heat capacity of the first pipeline structure (301) is larger than a total heat capacity of the second pipeline structure (401),
• wherein the flowpath inside the heat gaining device (101) is upwardly inclined and extends from a fifth fluid inlet/outlet port (1011) of the heat gaining device (101) to a sixth inlet/outlet port (1012), wherein the fifth inlet/outlet port (1011) is connected to the first fluid inlet/outlet port of the first pipeline structure (301) at a lower position to allow a portion of the heat exchange fluid (104) having a relatively lower temperature to flow into the heat gaining device (101), and the sixth fluid inlet/outlet port (1012) of the heat gaining device (101) is connected to the fourth fluid inlet/outlet port (4012) of the second pipeline structure (401) at a higher position to allow a portion of the heat exchange fluid (104) having a relatively higher temperature to flow out, generating a convection effect;
• and
• wherein the open-loop natural thermal energy releasing system further comprises at least one auxiliary heating/cooling device (115) installed between the fifth fluid inlet/outlet port (1011) of the heat gaining device (101) and the third fluid inlet/outlet port (4011) of the second pipeline structure (401),
• whereby when the heat gaining device (101) gains thermal energy from the natural thermal energy storage body (100) and transfers the thermal energy to the heat exchange fluid (104), the heat exchange fluid (104) in the first pipeline structure (301) experiences a smaller temperature differential than the heat exchange fluid in the second pipeline structure (401), thereby forming a temperature differential between the first inlet/outlet port (3011) and the fourth inlet/outlet port (4012) that causes the heat exchange fluid (104) to flow through the system.