阅读说明：本技术 一种卧式液氢容器的异形绝热支撑结构 (Special-shaped heat insulation supporting structure of horizontal liquid hydrogen container ) 是由 李晓峰 黄强华 陈光奇 朱鸣 何晓冬 朱关标 于 2019-09-10 设计创作，主要内容包括：本发明公开了一种卧式液氢容器的异形绝热支撑结构,包括：内管和外管,内管的内端插入至外管的内端中,并且内管内端和外管内端相连接固定,内管的外端用于与内筒体或者外筒体的封头相固定,外管的外端用于与内、外筒体中未与内管相固定的那个筒体的封头相固定。上述的异形绝热支撑结构比较简单,制造方便,并且能在内外筒体之间有限的空间内通过内管插入至外管中、以及通过延长内管内端和外管内端之间的连接长度来延长导热路径,从而能大大降低内筒体中外部热量的导入量,使得液氢真空绝热气瓶的绝热效率能提高50%以上。(The invention discloses a special-shaped heat insulation supporting structure of a horizontal liquid hydrogen container, which comprises: the inner end of the inner pipe is inserted into the inner end of the outer pipe, the inner end of the inner pipe and the inner end of the outer pipe are connected and fixed, the outer end of the inner pipe is used for being fixed with the end socket of the inner cylinder or the outer cylinder, and the outer end of the outer pipe is used for being fixed with the end socket of the cylinder which is not fixed with the inner pipe in the inner cylinder and the outer cylinder. The special-shaped heat insulation supporting structure is simple and convenient to manufacture, and can be inserted into the outer pipe through the inner pipe in the limited space between the inner cylinder and the outer cylinder and extend the heat conduction path by prolonging the connection length between the inner end of the inner pipe and the inner end of the outer pipe, so that the introduction amount of external heat in the inner cylinder can be greatly reduced, and the heat insulation efficiency of the liquid hydrogen vacuum heat insulation gas cylinder can be improved by more than 50%.)

1. The utility model provides a horizontal liquid hydrogen container's adiabatic bearing structure of dysmorphism which characterized in that: the method comprises the following steps: the inner end of the inner pipe is inserted into the inner end of the outer pipe, the inner end of the inner pipe and the inner end of the outer pipe are connected and fixed, the outer end of the inner pipe is used for being fixed with the end socket of the inner cylinder or the outer cylinder, and the outer end of the outer pipe is used for being fixed with the end socket of the cylinder which is not fixed with the inner pipe in the inner cylinder and the outer cylinder.

2. The special-shaped heat insulation support structure of the horizontal liquid hydrogen container according to claim 1, characterized in that: the inner end of the inner tube is inserted into the outer tube over a distance exceeding half the length of the outer tube.

3. The special-shaped heat-insulating support structure for the horizontal liquid hydrogen container according to claim 1 or 2, wherein: a transition pipe sleeved outside the inner pipe is arranged between the inner pipe and the outer pipe, the transition pipe and the inner and outer pipes are arranged at intervals, one end of the transition pipe, which is on the same side as the inner end of the inner pipe, is connected and fixed with the inner end of the inner pipe, and one end of the transition pipe, which is on the same side as the inner end of the outer pipe, is connected and fixed with the inner end of the outer pipe.

4. The special-shaped heat insulation supporting structure of the horizontal liquid hydrogen container according to claim 3, characterized in that: two ends of the transition pipe are respectively connected and fixed with the inner ends of the corresponding inner pipe and the outer pipe through a plate-shaped arc-shaped annular sealing plate on the longitudinal section.

5. The special-shaped heat-insulating support structure for the horizontal liquid hydrogen container according to claim 1 or 2, wherein: further comprising: and the vent hole is used for communicating the inner cavity surrounded by the inner pipe, the outer pipe and the connecting part between the inner pipe and the outer pipe with the outside.

6. The special-shaped heat insulation supporting structure of the horizontal liquid hydrogen container according to claim 5, wherein: the vent hole is arranged on the pipe wall of the outer pipe.

7. The special-shaped heat-insulating support structure for the horizontal liquid hydrogen container according to claim 1 or 2, wherein: further comprising: the outer end of the pipe to be fixed with the outer cylinder end enclosure in the inner and outer pipes is welded and fixed with the reinforcing cover plate.

8. The special-shaped heat-insulating support structure for the horizontal liquid hydrogen container according to claim 1 or 2, wherein: the inner side and the outer side of the inner pipe, the outer pipe and the connection part of the inner pipe and the outer pipe are respectively wound with a heat insulating layer, the heat insulating layer consists of glass fiber heat insulating paper and an aluminum foil reflecting screen, and the aluminum foil reflecting screen is positioned on the outer side of the glass fiber heat insulating paper.

9. The special-shaped heat-insulating support structure for the horizontal liquid hydrogen container according to claim 1 or 2, wherein: a special pipe sleeved outside the inner pipe is arranged between the inner pipe and the outer pipe, the special pipe and the inner pipe and the outer pipe are arranged at intervals, and the inner ends of the inner pipe and the outer pipe are respectively connected and fixed with one end of the pipe wall of the special pipe.

10. The special-shaped heat-insulating support structure for the horizontal liquid hydrogen container according to claim 9, wherein: the pipe wall on the longitudinal section of the special pipe is arranged in a snake-shaped trend which is bent back and forth inside and outside.

Technical Field

The invention relates to the field of liquid hydrogen containers, in particular to an end heat insulation supporting structure between an inner cylinder body and an outer cylinder body of a liquid hydrogen container.

Background

The liquid hydrogen container comprises outer barrel and the interior barrel that is arranged in outer barrel, interior barrel supports in outer barrel through the bearing structure at both ends, the bearing structure of barrel front end is the metal straight tube that both ends are fixed with interior, outer barrel respectively usually, the length of metal straight tube is owing to receive the restriction of interval between the interior outer barrel and the short that sets up, outside heat just so conducts to interior barrel along shorter metal straight tube easily, become the main channel in outside heat conduction to interior barrel, make the easy evaporation of cryogenic liquids in the interior barrel.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: it is intended to provide a shaped heat insulating support structure for a horizontal liquid hydrogen container which can reduce the conduction of external heat into an inner cylinder.

In order to solve the problems, the technical scheme adopted by the invention is as follows: the utility model provides a horizontal liquid hydrogen container's adiabatic bearing structure of dysmorphism which characterized in that: the method comprises the following steps: the inner end of the inner pipe is inserted into the inner end of the outer pipe, the inner end of the inner pipe and the inner end of the outer pipe are connected and fixed, the outer end of the inner pipe is used for being fixed with the end socket of the inner cylinder or the outer cylinder, and the outer end of the outer pipe is used for being fixed with the end socket of the cylinder which is not fixed with the inner pipe in the inner cylinder and the outer cylinder.

Further, the aforesaid horizontal liquid hydrogen container's dysmorphism adiabatic bearing structure, wherein: the inner end of the inner tube is inserted into the outer tube over a distance exceeding half the length of the outer tube.

Further, the aforesaid horizontal liquid hydrogen container's dysmorphism adiabatic bearing structure, wherein: a transition pipe sleeved outside the inner pipe is arranged between the inner pipe and the outer pipe, the transition pipe and the inner and outer pipes are arranged at intervals, one end of the transition pipe, which is on the same side as the inner end of the inner pipe, is connected and fixed with the inner end of the inner pipe, and one end of the transition pipe, which is on the same side as the inner end of the outer pipe, is connected and fixed with the inner end of the outer pipe.

Further, the aforesaid horizontal liquid hydrogen container's dysmorphism adiabatic bearing structure, wherein: two ends of the transition pipe are respectively connected and fixed with the inner ends of the corresponding inner pipe and the outer pipe through a plate-shaped arc-shaped annular sealing plate on the longitudinal section.

Further, the aforesaid horizontal liquid hydrogen container's dysmorphism adiabatic bearing structure, wherein: further comprising: and the vent hole is used for communicating the inner cavity surrounded by the inner pipe, the outer pipe and the connecting part between the inner pipe and the outer pipe with the outside.

Further, the aforesaid horizontal liquid hydrogen container's dysmorphism adiabatic bearing structure, wherein: the vent hole is arranged on the pipe wall of the outer pipe.

Further, the aforesaid horizontal liquid hydrogen container's dysmorphism adiabatic bearing structure, wherein: further comprising: the outer end of the pipe to be fixed with the outer cylinder end enclosure in the inner and outer pipes is welded and fixed with the reinforcing cover plate.

Further, the aforesaid horizontal liquid hydrogen container's dysmorphism adiabatic bearing structure, wherein: the inner side and the outer side of the inner pipe, the outer pipe and the connection part of the inner pipe and the outer pipe are respectively wound with a heat insulating layer, the heat insulating layer consists of glass fiber heat insulating paper and an aluminum foil reflecting screen, and the aluminum foil reflecting screen is positioned on the outer side of the glass fiber heat insulating paper.

Further, the aforesaid horizontal liquid hydrogen container's dysmorphism adiabatic bearing structure, wherein: a special pipe sleeved outside the inner pipe is arranged between the inner pipe and the outer pipe, the special pipe and the inner pipe and the outer pipe are arranged at intervals, and the inner ends of the inner pipe and the outer pipe are respectively connected and fixed with one end of the pipe wall of the special pipe.

Further, the aforesaid horizontal liquid hydrogen container's dysmorphism adiabatic bearing structure, wherein: the pipe wall on the longitudinal section of the special pipe is arranged in a snake-shaped trend which is bent back and forth inside and outside.

The invention has the advantages that: the special-shaped heat insulation support structure is simple and convenient to manufacture, and can be inserted into the outer pipe through the inner pipe in a limited space between the inner cylinder and the outer cylinder, and the heat conduction path is prolonged by prolonging the connection length between the inner end of the inner pipe and the inner end of the outer pipe, so that the introduction amount of external heat in the inner cylinder can be greatly reduced, and the heat insulation efficiency of the liquid hydrogen vacuum heat insulation gas cylinder can be improved by over 50 percent.

Drawings

Fig. 1 is a schematic sectional structural view of one structure of the special-shaped heat-insulating support structure of the horizontal liquid hydrogen container according to the invention.

Fig. 2 is a schematic cross-sectional structural view of another structure of the special-shaped heat-insulating support structure of the horizontal liquid hydrogen container.

Detailed Description

The present invention will be described in further detail below with reference to specific embodiments and the attached drawings.

As shown in fig. 1, a special-shaped heat-insulating support structure for a horizontal liquid hydrogen container comprises: the heat conduction device comprises an inner tube 2 and an outer tube 1, wherein the inner end of the inner tube 2 is inserted into the inner end of the outer tube 1, and the inner end of the inner tube 2 is connected and fixed with the inner end of the outer tube 1; the outer end of the inner tube 2 is used for being fixed with the end socket of the inner cylinder 8, and the outer end of the outer tube 1 is used for being fixed with the end socket of the outer cylinder 7.

In order to connect and fix the inner end of the inner tube 2 and the inner end of the outer tube 1, and enable the inner tube 8 to be supported in the outer tube 7, in this embodiment, a transition tube 3 sleeved outside the inner tube 2 is arranged between the inner tube 2 and the outer tube 1, the transition tube 3 is arranged at intervals with the inner tube 2 and the outer tube 1, one end of the transition tube 3 on the same side as the inner end of the inner tube 2 is connected and fixed with the inner end of the inner tube 2, and one end of the transition tube 3 on the same side as the inner end of the outer tube 1 is connected and fixed with the inner end. And two ends of the transition pipe 3 are respectively connected and fixed with the inner ends of the corresponding inner and outer pipes 2 and 1 through a plate-shaped arc-shaped annular sealing plate 4 on the longitudinal section. After the arrangement, the inner end of the inner pipe 2 and the inner end of the outer pipe 1 can be stably connected and fixed, and the special-shaped heat insulation supporting structure is convenient to manufacture.

In this embodiment, the shaped heat insulating support structure further includes: and a vent hole 6 for communicating the inner cavity surrounded by the inner tube 2, the outer tube 1 and the connecting part between them with the outside. The arrangement is to communicate the inner cavity of the special-shaped heat insulation support structure with the interlayer between the inner cylinder body and the outer cylinder body, thereby achieving the purpose that the inner environment and the outer environment are the same after vacuum pumping. For convenience of processing, the vent holes 6 are provided on the wall of the outer tube 1.

In order to facilitate the installation of special-shaped heat insulation support structure, special-shaped heat insulation support structure still includes: the opening 51 arranged on the end socket of the outer cylinder 7 and the reinforcing cover plate 5 used for welding and covering the opening 51 of the end socket of the outer cylinder 7 are arranged, and the outer end of the outer tube 1 is fixedly welded with the reinforcing cover plate 5. During the installation of special-shaped heat insulation support structure, at first with the head looks welded fastening of 2 outer ends of inner tube and interior barrel 8, then weld reinforcement apron 5 on the outer end of outer tube 1, and set up one on the head of barrel 7 outside with 5 size assorted trompils 51 of reinforcement apron, then with reinforcement apron 5 from inside to outside closing cap on trompil 51, then weld reinforcement apron 5 to the outside, make the fixed closing cap of reinforcement apron 5 on trompil 51, special-shaped heat insulation support structure just can install between the head of outer barrel 7 and interior barrel 8 like this. Because the interval between the interior outer barrel head is very little, can't weld outer tube 1 outer end and outer barrel 7 head in inside, so need set up reinforcement apron 5 and trompil 51 and be convenient for outer tube 1 outer end and outer barrel 7 head fixed mutually.

The special-shaped heat insulation supporting structure in the embodiment is formed by integrally casting low-temperature-resistant stainless steel or other low-temperature-resistant alloys, so that the supporting strength of the special-shaped heat insulation supporting structure can be ensured.

In this embodiment, the inner and outer sides of the inner tube 2, the outer tube 1 and their connection portions are wrapped with heat insulating layers, not shown in the figure, the heat insulating layers are composed of glass fiber heat insulating paper and aluminum foil reflecting screens, and the aluminum foil reflecting screens are located outside the glass fiber heat insulating paper. The winding and coating heat insulating layer is used for reducing heat leakage caused by heat radiation of the pipe wall.

As shown in fig. 2, in practical application, the connection structure between the inner end of the inner tube 2 and the inner end of the outer tube 1 may also be: a special-shaped pipe 9 sleeved outside the inner pipe 2 is arranged between the inner pipe 2 and the outer pipe 1, the special-shaped pipe 9 is arranged at intervals with the inner pipe 2 and the outer pipe 1, the pipe wall on the longitudinal section of the special-shaped pipe 9 is arranged in a snake-shaped trend of bending back and forth inside and outside, and the inner ends of the inner pipe 2 and the outer pipe 1 are respectively connected and fixed with one end of the pipe wall of the special-shaped pipe 9. The special-shaped structure of the special-shaped pipe 9 can further prolong the heat conduction path, but the special-shaped heat insulation supporting structure adopting the special-shaped pipe 9 is not easy to manufacture, and the supporting strength of the special-shaped heat insulation supporting structure is also difficult to guarantee, but if the supporting strength and the easiness in manufacturing can be guaranteed, the special-shaped heat insulation supporting structure adopting the special-shaped pipe 9 can further increase the heat conduction path, so that the low-temperature liquid in the inner cylinder can be enabled to be more difficult to evaporate.