Large-temperature-difference temperature maintaining device under liquid helium temperature

• Main Authors: HUANG XING, HU XINNING, ZHANG YUAN, CUI CHUNYAN, NIU FEIFEI, WANG HAO, WANG QIULIANG
• Format: Patent
• Language: Chinese; English
• Published: 04.01.2022
• Subjects: GYROSCOPIC INSTRUMENTS; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

The invention discloses a large-temperature-difference temperature maintaining device under liquid helium temperature. The large-temperature-difference temperature maintaining device comprises a heating coil, a clinometer shell, a clinometer shell upper cover, a vacuum layer shell, a vacuum layer upper cover, a cold screen upper cover, a cold screen shell, a cold conduction copper wire, a vacuum layer supporting pipe, a clinometer supporting pipe, a thermometer and a temperature control module. The heating coil is located between the clinometer and the clinometer shell, the clinometer shell is located on the inner side of the cold screen shell, and the cold screen shell is located on the inner side of the vacuum layer shell. By means of the device, conduction heat leakage and radiation heat leakage under the large temperature difference condition of the liquid helium background temperature can be reduced, the heat loss of the heat preservation space is reduced, the heat preservation effect is achieved through