Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Spiral liquid nitrogen freezer and freezing method
The invention provides a spiral liquid nitrogen freezer and a freezing method, which are suitable for the artificial freezing construction of underground engineering. The spiral liquid nitrogen freezer comprises a liquid supply pipe and a return gas pipe, wherein the liquid supply pipe and the return gas pipe are of spiral structures, are interconnected and are respectively provided with a liquidsupply pipe orifice and a return gas pipe orifice; and the tail ends of spiral coils of the liquid supply pipe and the return gas pipe are interconnected, are in staggered arrangement and not in direct contact with each other. The spiral liquid nitrogen freezer has less loss of refrigeration capacity, and gives full play to the characteristic of the rapid freezing of liquid nitrogen. The spiral liquid nitrogen freezer is directly close to the stratum needing to be frozen, improves the efficiency of the transfer of refrigeration capacity into the stratum, and gives full play to the advantage ofhigh refrigeration efficiency of liquid nitrogen. The spiral liquid nitrogen freezer can be directly applied to the stratum freezing engineering at different depths; and the freezing effect at different depths can be controlled by adjusting the interval between spiral pipes so as to achieve the differential freezing at different depths.
一种螺旋形液氮冻结器及方法，适用于地下工程的人工冻结施工。包括螺旋结构的供液管和回气管，供液管和回气管相互连接，并设有供液管口和回气管口，供液管的螺旋圈和回气管的螺旋圈的尾端相互连接且两者之间交错布置、互相之间不直接接触。其冷量损失少，充分发挥液氮快速冻结特点。直接贴近需要冻结的地层，提高了冷量向地层内的传递效率，发挥液氮制冷效率高的优势。螺旋形液氮冻结器可以直接应用于不同深度的地层冻结工程中，通过调节螺旋管之间的间隔，来控制不同深度位置的冻结效果，实现不同深度的差异冻结。
Spiral liquid nitrogen freezer and freezing method
The invention provides a spiral liquid nitrogen freezer and a freezing method, which are suitable for the artificial freezing construction of underground engineering. The spiral liquid nitrogen freezer comprises a liquid supply pipe and a return gas pipe, wherein the liquid supply pipe and the return gas pipe are of spiral structures, are interconnected and are respectively provided with a liquidsupply pipe orifice and a return gas pipe orifice; and the tail ends of spiral coils of the liquid supply pipe and the return gas pipe are interconnected, are in staggered arrangement and not in direct contact with each other. The spiral liquid nitrogen freezer has less loss of refrigeration capacity, and gives full play to the characteristic of the rapid freezing of liquid nitrogen. The spiral liquid nitrogen freezer is directly close to the stratum needing to be frozen, improves the efficiency of the transfer of refrigeration capacity into the stratum, and gives full play to the advantage ofhigh refrigeration efficiency of liquid nitrogen. The spiral liquid nitrogen freezer can be directly applied to the stratum freezing engineering at different depths; and the freezing effect at different depths can be controlled by adjusting the interval between spiral pipes so as to achieve the differential freezing at different depths.
一种螺旋形液氮冻结器及方法，适用于地下工程的人工冻结施工。包括螺旋结构的供液管和回气管，供液管和回气管相互连接，并设有供液管口和回气管口，供液管的螺旋圈和回气管的螺旋圈的尾端相互连接且两者之间交错布置、互相之间不直接接触。其冷量损失少，充分发挥液氮快速冻结特点。直接贴近需要冻结的地层，提高了冷量向地层内的传递效率，发挥液氮制冷效率高的优势。螺旋形液氮冻结器可以直接应用于不同深度的地层冻结工程中，通过调节螺旋管之间的间隔，来控制不同深度位置的冻结效果，实现不同深度的差异冻结。
Spiral liquid nitrogen freezer and freezing method
一种螺旋形液氮冻结器及方法
SHI RONGJIAN (Autor:in) / HUANG FENG (Autor:in) / ZHU LEI (Autor:in) / YU MINGYUE (Autor:in)
10.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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