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Fixed inner support based on concentric sleeve cones and low-temperature container provided with fixed inner support

A low-temperature container and a fixed internal technology, which is applied in the direction of container filling method, container structure outer wall, container discharge method, etc., can solve the problems of easy thermal short circuit, weak bearing capacity, fit gap or thermal stress, etc., and achieve wide application and promotion prospects, reducing structural heat leakage, moderate manufacturing difficulty

Active Publication Date: 2020-12-11
航天氢能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this support is: the coefficient of thermal expansion of FRP is significantly greater than that of metal, and it is anisotropic, and it is easy to produce fit gaps or thermal stress at low temperatures
The disadvantage of this support is that it is difficult and costly to make metal laminations, and it is not suitable for popularization occasions
The disadvantages of this support are: the casing is slender, with weak bearing capacity, large deformation, and easy to form a thermal short circuit; in addition, point A in the figure is the hot end, point B is the cold end, and it is difficult to arrange an effective heat insulation structure between AB , the thermal bridge is difficult to play the role of application

Method used

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  • Fixed inner support based on concentric sleeve cones and low-temperature container provided with fixed inner support
  • Fixed inner support based on concentric sleeve cones and low-temperature container provided with fixed inner support
  • Fixed inner support based on concentric sleeve cones and low-temperature container provided with fixed inner support

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as Figure 8 As shown, considering that the welding is not convenient for flaw detection, the two sleeve cones of the fixed inner support are connected by a combination of concave-convex surface and bolt group fastening. This connection method is more reliable and convenient for assembly and manufacture.

Embodiment 2

[0047] On the basis of the first embodiment of the fixed internal support, other structures can be added between the joint surfaces of the two sleeve cones, for example, glass fiber reinforced plastics 17 are arranged, such as Figure 9 As shown, in this way, the thermal resistance of the fixed inner support can be further improved and the heat leakage of the structure can be reduced.

[0048] Embodiment 1 of a low-temperature liquefied gas storage tank:

[0049] In the case that there is no restriction on the external dimensions of the cryogenic liquefied gas storage tank, the fixed inner support can be fixedly connected with the inner container directly, and the outer container is supported on the ground or other equipment by means of the saddle 18, such as Figure 10 shown. In this way, the wall thickness of the inner container is thinner, the manufacturing difficulty is small, and the manufacturing cost is low.

[0050] Example two of cryogenic liquefied gas storage tank...

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Abstract

The invention discloses a fixed inner support based on concentric sleeve cones and a low-temperature container provided with the fixed inner support, and belongs to the technical field of low-temperature containers. The fixed inner support is composed of two sleeve cones, wherein each sleeve cone is formed by end-to-end sequential connection after sleeving of a plurality of cone shells with different inner diameters and similar vertex angles, a certain distance is kept between every two adjacent cone shells, the small end of the innermost cone shell of each sleeve cone is sealed by a thick plate, a vent hole is formed in each thick plate, and the large end of the outermost cone shell of each sleeve cone is open, so that a labyrinth-shaped thermal bridge structure is formed; and the two sleeve cones are fixedly connected together through the thick plates, and the large ends of the outermost cone shells of the two sleeve cones are connected with an outer container and an inner containerrespectively. According to the fixed inner support, by adopting the sleeve cone labyrinth structure, the occupied space is small, structural heat leakage of the low-temperature container can be obviously reduced while the structural strength is guaranteed, particularly, the problems of fit clearance and thermal stress caused by thermal expansion coefficient differences of different materials are solved, and high working reliability is achieved.

Description

technical field [0001] The invention relates to a concentric sleeve cone fixed inner support for a low-temperature liquefied gas storage tank, which is used for connecting the inner container and the outer container of the low-temperature liquefied gas storage tank, and belongs to the technical field of low-temperature containers. Background technique [0002] Methane, oxygen, nitrogen, hydrogen, helium and other gases are liquefied, and the liquid volume is much smaller than the gaseous volume. Therefore, from the perspective of energy storage density, low-temperature liquid storage and transportation is an ideal way. [0003] In order to reduce heat leakage and evaporation loss of low-temperature liquid medium, low-temperature liquefied gas storage tanks usually adopt a double-layer structure consisting of an inner container and an outer container. There is a vacuum interlayer between the inner and outer containers. Support structure connection. The inner support structur...

Claims

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Application Information

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IPC IPC(8): F17C13/08F17C13/00F17C13/06
CPCF17C13/084F17C13/001F17C13/06F17C2201/035F17C2201/056F17C2203/0345F17C2203/035F17C2203/0341F17C2205/0126F17C2205/0103F17C2205/0153F17C2221/033F17C2221/012F17C2221/014F17C2221/011F17C2221/017F17C2223/0161F17C2223/0153F17C2223/035F17C2223/033F17C2270/05F17C2205/0311Y02E60/32
Inventor 许鸿昊兰玉岐卜玉张震余炳延许健王嘉炜安刚
Owner 航天氢能科技有限公司
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