制冷与空调（四川）
製冷與空調（四川）
제랭여공조（사천）
Refrigeration & Air Conditioning
2015年
5期
560-563
,共4页
双U型地埋管%进水温度%循环流速%钻井深度%回填材料
雙U型地埋管%進水溫度%循環流速%鑽井深度%迴填材料
쌍U형지매관%진수온도%순배류속%찬정심도%회전재료
double U type buried pipe%inlet temperature%flow rate%drilling depth%backfill material
以西南科技大学新能源改造项目为基础，根据相关技术规范的要求，对双U型地埋管换热器进行了试验测试。建立和实际尺寸完全相同的三维数值模拟模型，通过验证后的数值模拟模型，对地埋管换热器的换热过程进行动态模拟。研究了进水温度和速度、钻井深度、回填材料对U型地埋管换热器换热性能的影响。得出进水温度设计时应综合考虑，循环流速为0.4～0.8m/s比较合适，钻井深度取60～100m较为合理，回填材料的导热系数略大于地埋管周围土壤即可。
以西南科技大學新能源改造項目為基礎，根據相關技術規範的要求，對雙U型地埋管換熱器進行瞭試驗測試。建立和實際呎吋完全相同的三維數值模擬模型，通過驗證後的數值模擬模型，對地埋管換熱器的換熱過程進行動態模擬。研究瞭進水溫度和速度、鑽井深度、迴填材料對U型地埋管換熱器換熱性能的影響。得齣進水溫度設計時應綜閤攷慮，循環流速為0.4～0.8m/s比較閤適，鑽井深度取60～100m較為閤理，迴填材料的導熱繫數略大于地埋管週圍土壤即可。
이서남과기대학신능원개조항목위기출，근거상관기술규범적요구，대쌍U형지매관환열기진행료시험측시。건립화실제척촌완전상동적삼유수치모의모형，통과험증후적수치모의모형，대지매관환열기적환열과정진행동태모의。연구료진수온도화속도、찬정심도、회전재료대U형지매관환열기환열성능적영향。득출진수온도설계시응종합고필，순배류속위0.4～0.8m/s비교합괄，찬정심도취60～100m교위합리，회전재료적도열계수략대우지매관주위토양즉가。
This paper is based on the new energy reform project of Southwest University of Science and Technology, according to the requirements of relevant technical specifications, test the heat exchanger tube of double U type buried. A 3D numerical simulation model is established and the actual size is exactly the same, after verification by numerical simulation model, dynamic simulation of buried tube heat transfer process of heat exchanger. Study on inlet water temperature and velocity, drilling depth, backfill materials affect the heat transfer performance of heat exchanger of U type buried tube. It should be considered comprehensively when designing the inlet water temperature, circulating flow rate is appropriate for 0.4~0.8m/s, drilling depth of 60~100m is more reasonable, the thermal conductivity of backfill material is slightly larger than the soil around the buried pipe.
