A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses an artificial stratum freezing system and method for liquid nitrogen and saline water combined refrigeration. The freezing system comprises a liquid nitrogen evaporator, a saline water pump, a distributor, a liquid conveying pipeline and a liquid return pipeline, wherein a coil pipe is arranged in the liquid nitrogen evaporator, the liquid conveying pipeline and the liquidreturn pipeline are both communicated with the coil pipe in the liquid nitrogen evaporator, the inlet end of the liquid conveying pipeline is assembled at the bottom of the liquid nitrogen evaporator,the outlet end of the liquid conveying pipeline is inserted into the bottom of a freezing pipe, and the saline water pump and the distributor are arranged on the liquid conveying pipeline. The methodcomprises the steps of 1, system precooling; 2, refrigeration freezing; 3, maintenance freezing; 4, safety operation technical measures; 5, refrigeration system design; 6, freezing hole drilling construction; 7, freezing construction; 8, freezing pipe pulling out; and 9, frost heaving and thaw collapse control. The artificial stratum freezing system and method have the advantages that the construction period is short, the manufacturing cost is low, a compressor is not needed for refrigeration, and therefore electric energy is greatly saved, and the cost is saved.
本发明公开了一种液氮与盐水联合制冷的人工地层冻结系统及方法，冻结系统包括有液氮蒸发器、盐水泵及分配器、输液管路和回液管路，其中液氮蒸发器内设置有盘管，输液管路和回液管路均与液氮蒸发器内的盘管相连通，输液管路的进口端装配在液氮蒸发器的底部，输液管路的出口端插入到冻结管的底部，盐水泵及分配器设置在输液管路上，其方法为：第一步、系统预冷；第二步、制冷冻结；第三步、维护冻结；第四步、安全操作技术措施；第五步、制冷系统设计；第六步、冻结孔钻孔的施工；第七步、冻结的施工；第八步、冻结管的拔除；第九步、冻胀与融沉控制。本发明的有益效果：工期短造价低，不需要压缩机制冷，从而大大节约电能，从而节约成本。
The invention discloses an artificial stratum freezing system and method for liquid nitrogen and saline water combined refrigeration. The freezing system comprises a liquid nitrogen evaporator, a saline water pump, a distributor, a liquid conveying pipeline and a liquid return pipeline, wherein a coil pipe is arranged in the liquid nitrogen evaporator, the liquid conveying pipeline and the liquidreturn pipeline are both communicated with the coil pipe in the liquid nitrogen evaporator, the inlet end of the liquid conveying pipeline is assembled at the bottom of the liquid nitrogen evaporator,the outlet end of the liquid conveying pipeline is inserted into the bottom of a freezing pipe, and the saline water pump and the distributor are arranged on the liquid conveying pipeline. The methodcomprises the steps of 1, system precooling; 2, refrigeration freezing; 3, maintenance freezing; 4, safety operation technical measures; 5, refrigeration system design; 6, freezing hole drilling construction; 7, freezing construction; 8, freezing pipe pulling out; and 9, frost heaving and thaw collapse control. The artificial stratum freezing system and method have the advantages that the construction period is short, the manufacturing cost is low, a compressor is not needed for refrigeration, and therefore electric energy is greatly saved, and the cost is saved.
本发明公开了一种液氮与盐水联合制冷的人工地层冻结系统及方法，冻结系统包括有液氮蒸发器、盐水泵及分配器、输液管路和回液管路，其中液氮蒸发器内设置有盘管，输液管路和回液管路均与液氮蒸发器内的盘管相连通，输液管路的进口端装配在液氮蒸发器的底部，输液管路的出口端插入到冻结管的底部，盐水泵及分配器设置在输液管路上，其方法为：第一步、系统预冷；第二步、制冷冻结；第三步、维护冻结；第四步、安全操作技术措施；第五步、制冷系统设计；第六步、冻结孔钻孔的施工；第七步、冻结的施工；第八步、冻结管的拔除；第九步、冻胀与融沉控制。本发明的有益效果：工期短造价低，不需要压缩机制冷，从而大大节约电能，从而节约成本。
Artificial stratum freezing system and method for liquid nitrogen and saline water combined refrigeration
一种液氮与盐水联合制冷的人工地层冻结系统及方法
2020-12-04
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Artificial stratum freezing system with staged refrigeration and construction method thereof
| European Patent Office | 2021
Artificial stratum freezing method utilizing low-temperature carbon dioxide to cyclic refrigeration
| European Patent Office | 2021