| 摘要 |
<p>PURPOSE: A geothermal heat-exchanger with a tapered joint and a composition method thereof are provided to reduce excavation costs by installing an incasing with a small diameter, and to reduce construction costs by standardizing the heat-exchanger. CONSTITUTION: A geothermal heat-exchanger with a tapered joint comprises an excavated hole(1), grouting waterproof walls(37), an incasing(31), a perforated pipe(35), a tapered joint, a pump housing(50), a deep well submerged motor pump(21), a pumping pipe(23), a pipe unit, and an incasing bracket. The grouting waterproof walls are installed outside the excavated hole. The incasing is inserted into the excavated hole. The perforated pipe is arranged in the bottom of the incasing. The tapered joint is connected to the top end of the incasing. The pump housing is coupled to the top of the tapered joint. The deep well submerged motor pump is coupled to the pumping pipe. The pumping pipe supplies underground water to the heat exchanger.</p> |
