Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Liquid nitrogen freezing device and method
The invention relates to a liquid nitrogen freezing device and method used for freezing an underground soil layer, and a nitrogen storage mechanism is used for storing liquid nitrogen. The liquid supply mechanism comprises a first liquid supply pipe and a second liquid supply pipe; the outer sleeve is located at an underground soil layer, the first liquid supply pipe is provided with a first end and a second end which are opposite, the second liquid supply pipe is provided with a third end and a fourth end which are opposite, the first end and the third end are communicated with the nitrogen storage mechanism, and the second end and the fourth end extend into the outer sleeve, so that the second end is located at a first preset depth of the underground soil layer; the fourth end is located at the second preset depth of the underground soil layer, and the first preset depth is larger than the second preset depth. The liquid nitrogen in the second liquid supply pipe can absorb heat for the shallower-depth part of the outer sleeve and can also absorb heat for the shallower-depth part of the first liquid supply pipe at the same time, so that the liquid nitrogen in the first liquid supply pipe is ensured to reduce gasification on the way and keep low temperature when flowing to a deeper position in the outer sleeve.
本申请涉及一种液氮冻结装置及方法，用于对地底土层进行冻结，储氮机构用于储存液氮；供液机构包括第一供液管和第二供液管；外套管位于地底土层，第一供液管具有相对的第一端和第二端，第二供液管具有相对的第三端和第四端，第一端和第三端均与储氮机构连通，第二端和第四端均延伸至外套管内，以使第二端位于地底土层的第一预设深度，第四端位于地底土层的第二预设深度，第一预设深度大于第二预设深度。第二供液管中的液氮在对外套管的较浅深度部分进行吸热的同时，还能够对第一供液管的较浅深度部分进行吸热，以保证第一供液管内的液氮在流至外套管内更深的位置时减少沿途中的气化并保持低温。
Liquid nitrogen freezing device and method
The invention relates to a liquid nitrogen freezing device and method used for freezing an underground soil layer, and a nitrogen storage mechanism is used for storing liquid nitrogen. The liquid supply mechanism comprises a first liquid supply pipe and a second liquid supply pipe; the outer sleeve is located at an underground soil layer, the first liquid supply pipe is provided with a first end and a second end which are opposite, the second liquid supply pipe is provided with a third end and a fourth end which are opposite, the first end and the third end are communicated with the nitrogen storage mechanism, and the second end and the fourth end extend into the outer sleeve, so that the second end is located at a first preset depth of the underground soil layer; the fourth end is located at the second preset depth of the underground soil layer, and the first preset depth is larger than the second preset depth. The liquid nitrogen in the second liquid supply pipe can absorb heat for the shallower-depth part of the outer sleeve and can also absorb heat for the shallower-depth part of the first liquid supply pipe at the same time, so that the liquid nitrogen in the first liquid supply pipe is ensured to reduce gasification on the way and keep low temperature when flowing to a deeper position in the outer sleeve.
本申请涉及一种液氮冻结装置及方法，用于对地底土层进行冻结，储氮机构用于储存液氮；供液机构包括第一供液管和第二供液管；外套管位于地底土层，第一供液管具有相对的第一端和第二端，第二供液管具有相对的第三端和第四端，第一端和第三端均与储氮机构连通，第二端和第四端均延伸至外套管内，以使第二端位于地底土层的第一预设深度，第四端位于地底土层的第二预设深度，第一预设深度大于第二预设深度。第二供液管中的液氮在对外套管的较浅深度部分进行吸热的同时，还能够对第一供液管的较浅深度部分进行吸热，以保证第一供液管内的液氮在流至外套管内更深的位置时减少沿途中的气化并保持低温。
Liquid nitrogen freezing device and method
液氮冻结装置及方法
LI XINMING (Autor:in) / DONG TAO (Autor:in) / WANG HONGDONG (Autor:in) / HWANG SUNG-TAEK (Autor:in) / HUANG WEIDONG (Autor:in)
04.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Ground Freezing with liquid Nitrogen
British Library Online Contents | 2000
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