Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Double-spiral liquid nitrogen freezer
The invention discloses a double-spiral liquid nitrogen freezer comprising a freezing hole used for containing a freezing pipe, the freezing pipe comprises a spiral liquid supply pipe and a spiral gas return pipe, the bottom end of the liquid supply pipe is communicated with the bottom end of the gas return pipe, and a liquid supply pipe opening in the top end of the liquid supply pipe and a gas return pipe opening in the top end of the gas return pipe both extend to the ground. A gas return pipe spiral ring is distributed in a liquid supply pipe spiral ring, the diameter of a liquid supply pipe spiral ring is the same as that of the freezing hole, the liquid supply pipe is tightly attached to the surrounding stratum, low-temperature liquid nitrogen is poured into a liquid nitrogen freezer from a liquid supply pipe opening, and the liquid nitrogen exchanges heat with the surrounding soil layer in the process of passing through the liquid supply pipe to take away heat in a soil body, so that freezing is achieved. Liquid nitrogen is gasified into high-temperature nitrogen in the freezing process, ascends along the gas return pipe at the bottom and is finally discharged into the atmosphere from a gas return pipe opening, and freezing circulation is completed.
本发明公开了一种双螺旋形液氮冻结器，包括用于放置冻结管的冻结孔，冻结管包括螺旋形的供液管和回气管，供液管和回气管的底端贯通，且供液管与回气管顶端的供液管口与回气管口均延伸至地面，回气管螺旋圈分布在供液管螺旋圈内，供液管螺旋圈直径与冻结孔的直径相同，且供液管紧贴周围地层，低温液氮从供液管口灌入液氮冻结器，液氮通过供液管的过程中，与周围土层发生热交换，带走土体中的热量，实现冻结，液氮在冻结的过程中气化为高温氮气，在底部顺着回气管上升，最后从回气管口排出到大气中，完成冻结循环。
Double-spiral liquid nitrogen freezer
The invention discloses a double-spiral liquid nitrogen freezer comprising a freezing hole used for containing a freezing pipe, the freezing pipe comprises a spiral liquid supply pipe and a spiral gas return pipe, the bottom end of the liquid supply pipe is communicated with the bottom end of the gas return pipe, and a liquid supply pipe opening in the top end of the liquid supply pipe and a gas return pipe opening in the top end of the gas return pipe both extend to the ground. A gas return pipe spiral ring is distributed in a liquid supply pipe spiral ring, the diameter of a liquid supply pipe spiral ring is the same as that of the freezing hole, the liquid supply pipe is tightly attached to the surrounding stratum, low-temperature liquid nitrogen is poured into a liquid nitrogen freezer from a liquid supply pipe opening, and the liquid nitrogen exchanges heat with the surrounding soil layer in the process of passing through the liquid supply pipe to take away heat in a soil body, so that freezing is achieved. Liquid nitrogen is gasified into high-temperature nitrogen in the freezing process, ascends along the gas return pipe at the bottom and is finally discharged into the atmosphere from a gas return pipe opening, and freezing circulation is completed.
本发明公开了一种双螺旋形液氮冻结器，包括用于放置冻结管的冻结孔，冻结管包括螺旋形的供液管和回气管，供液管和回气管的底端贯通，且供液管与回气管顶端的供液管口与回气管口均延伸至地面，回气管螺旋圈分布在供液管螺旋圈内，供液管螺旋圈直径与冻结孔的直径相同，且供液管紧贴周围地层，低温液氮从供液管口灌入液氮冻结器，液氮通过供液管的过程中，与周围土层发生热交换，带走土体中的热量，实现冻结，液氮在冻结的过程中气化为高温氮气，在底部顺着回气管上升，最后从回气管口排出到大气中，完成冻结循环。
Double-spiral liquid nitrogen freezer
一种双螺旋形液氮冻结器
ZENG CHUIGANG (Autor:in) / CAI GUANGYUAN (Autor:in) / ZHOU JIANJUN (Autor:in) / ZHANG BING (Autor:in) / SHEN FENG (Autor:in) / HUANG BAOLONG (Autor:in) / SUN FEIXIANG (Autor:in) / ZHANG JICHAO (Autor:in) / ZHOU YANG (Autor:in) / HUANG ZHISU (Autor:in)
28.01.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Segmented control type liquid nitrogen freezer and working method
| Europäisches Patentamt | 2020