The invention discloses an ultralow temperature high-pressure insulation connector which comprises a first short
pipe, a left
flange, a combined insulation ring, a right
flange, a second short
pipe and an outer insulation rubber sleeve. The combined insulation ring is clamped between the left
flange and the right flange, the first short
pipe is connected to the left end of the left flange, the second short pipe is connected to the right end of the right flange, the inner wall of the outer insulation rubber sleeve is coated with an
insulation layer to form an internal and external sealed insulation body, the outer insulation rubber sleeve is arranged on the outer surfaces of the first short pipe, the left flange, the combined insulation ring, the right flange and the second short pipe in asleeving manner, and a pair of
energy storage sealing rings are arranged on the
peripheral part of the combined insulation ring in a surrounding manner. The ultralow temperature high-pressure insulation connector has the beneficial effects that through
finite element stress analysis and
optimal design, a sealing structure is analyzed and tested, the sealing performance is more reliable, the production process is simple, meanwhile, the anti-bending strength is improved, the structure is compact and attractive,
standardization and
serialization production can be achieved, the very high practicability is achieved.