▎ 摘　　要

NOVELTY - A high-efficiency ground source heat pump ground heat exchange medium comprises 25-35 wt.% ethylene glycol, 5-10 wt.% stabilizer, 25-40 wt.% clean water, 5-15 wt.% nano metal powder, 5-10 wt.% modified graphene, 10-15 wt.% salt-containing solution, 1 wt.% smell agent, 5-7 wt.% boron oxide and 1-5 wt.% antifoaming agent. USE - High-efficiency ground source heat pump ground heat exchange medium. ADVANTAGE - The product solves problem of general efficiency of medium. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing high-efficiency ground source heat pump ground heat exchange medium comprising: (A) sieving ingredients, sterilizing, weighing and counting and storing into 3-5 pts. wt., heating water to 100-120 degrees C, keeping temperature for 0.5-1 hour, applying pressure at 0.5 MPa, filtering inner portion, irradiating by UV for not less than 1-2 hours, flowing clean water into stirring mechanism for heating, keeping temperature at 80-100 degrees C, adding stirring mechanism with ethylene glycol, stabilizer, antifoaming agent and smell agent, stirring inner portion for 35-45 minutes, and stopping heating; and (B) keeping temperature for 1-1.5 hours, grinding nano metal powder by grinder, sterilizing and storing, dispersing nano metal powder particles and modified graphene after grinding using ultrasonic dispersion method into water containing dispersant and ethylene glycol, stirring for 15-25 minutes, adding salt-containing solution and boron oxide, stirring for 10-15 minutes, adding clean water, cooling internal temperature to 50-60 degrees C, stirring for 10-20 minutes, and cooling internal temperature to room temperature.