Multi-component supercritical thermal fluid generation system and method with segmented air supply

A multi-component supercritical thermal fluid generation system with segmented air supply, comprising a multi-component supercritical thermal fluid generator body (22), a heat exchanger (6), a gas-liquid separator (11), a water tank (12), a storage tank (4), a slag discharge lock hopper (14) and an air compressor (1);

• wherein a preheated water inlet of the multi-component supercritical thermal fluid generator body (22) is communicated with the water tank (12);
• a preheated water outlet of the multi-component supercritical thermal fluid generator body (22) is communicated with a cold fluid inlet of the heat exchanger (6);
• a heat exchange sleeve (15) is provided in the multi-component supercritical thermal fluid generator body (22), an air delivery pipe (17) is provided in the heat exchange sleeve (15), and a spiral pipe (16) is wound around the air delivery pipe (17);
• a cold fluid outlet of the heat exchanger (6) is communicated with an inlet of the spiral pipe (16), and an outlet of the spiral pipe (16) is communicated with a preheated water inlet of the heat exchange sleeve (15);
• an outlet of the storage tank (4) is communicated with a material inlet provided on the multi-component supercritical thermal fluid generator body (22);
• an outlet of the air compressor (1) is respectively communicated with an upper air inlet and a lower air inlet of the air delivery pipe (17);
• a product outlet at an upper part of the multi-component supercritical thermal fluid generator body (22) is communicated with a thermal fluid inlet of the heat exchanger (6), and a slag outlet at a lower part is communicated with an inlet of the slag discharge lock hopper (14);
• a thermal fluid outlet of that heat exchange (6) is divided into two path, one path is communicated with the gas-liquid separator (11) through a cooler (9), and the other path is connected with an inlet of a multi-component supercritical thermal fluid injection well (7);
• a liquid product outlet of the gas separator (11) is communicated with an inlet of the water tank (12);
• an air supply unit is provided in the multi-component supercritical thermal fluid generator body (22), so as to realize segmented air supply in the multi-component supercritical thermal fluid generator body (22).