阅读说明：本技术 一种液氢真空绝热气瓶 (Liquid hydrogen vacuum heat insulation gas cylinder ) 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：本发明公开了一种液氢真空绝热气瓶,包括：外筒体和外筒体中的内筒体,内筒体中穿设有套管,套管中穿设有支撑轴,支撑轴上分别设有前限位座和后限位座,内筒体位于前、后限位座之间,内筒体和后限位座之间的支撑轴上套装有压紧弹簧,压紧弹簧的两端分别与后限位座和内筒体相抵靠,在外筒体的前、后封头上分别设有轴座,支撑轴的两端分别插入至对应端的轴座中。上述的液氢真空绝热气瓶采用了贯穿内筒体的支撑轴对内筒体进行横向支撑,并且支撑轴两端通过结构简单的轴座与外筒体相固定,从而使内筒体的支撑结构变的简单可靠,另外,由于支撑轴具有低导热的特性,使得外部热量不容易沿着支撑轴传导至内筒体中。(The invention discloses a liquid hydrogen vacuum heat insulation gas cylinder, which comprises: the inner barrel body in outer barrel body and the outer barrel body, wear to be equipped with the sleeve pipe in the inner barrel body, wear to be equipped with the back shaft in the sleeve pipe, spacing seat and back spacing seat before being equipped with respectively on the back shaft, the inner barrel body is located before, between the spacing seat of back, the cover is equipped with compression spring on the back shaft between inner barrel body and the back spacing seat, compression spring's both ends lean on with back spacing seat and inner barrel body counterbalance respectively, be equipped with the axle bed respectively in the preceding of outer barrel body, on the back head, the both ends of back shaft insert respectively to the axle bed of corresponding end in. Foretell liquid hydrogen vacuum insulation gas cylinder has adopted the back shaft that runs through interior barrel to carry out horizontal support to the barrel to the back shaft both ends are fixed mutually with outer barrel through simple structure's axle bed, thereby make the bearing structure of interior barrel become simple reliable, in addition, because the back shaft has the characteristic of low heat conduction, make outside heat be difficult to conduct to interior barrel along the back shaft.)

1. A liquid hydrogen vacuum insulated gas cylinder comprising: outer barrel and the interior barrel of installing in outer barrel, its characterized in that: the inner barrel is provided with a sleeve penetrating through the inner barrel along the axis of the inner barrel, the sleeve and the inner barrel are arranged in a sealing mode, a supporting shaft used for supporting the inner barrel and having high strength and low heat conductivity is arranged in the sleeve in a penetrating mode, a front limiting seat and a rear limiting seat are arranged on the supporting shaft respectively, the inner barrel is located between the front limiting seat and the rear limiting seat, a compression spring is sleeved on the supporting shaft between the inner barrel and the rear limiting seat, one end of the compression spring abuts against the rear limiting seat, the other end of the compression spring abuts against the inner barrel, under the elastic force of the compression spring, the front end of the inner barrel abuts against the front limiting seat and abuts against the top tightly, shaft seats are arranged on the front end socket and the rear end socket of the outer barrel respectively, the two ends of the supporting shaft are inserted into the shaft seats of the corresponding ends respectively, and the supporting shaft can support the inner barrel in a suspension mode in.

2. The liquid hydrogen vacuum insulation gas cylinder according to claim 1, characterized in that: the supporting shaft at the installation positions of the front limiting seat and the rear limiting seat is provided with an annular limiting groove for the limiting seat to be clamped in, and the front limiting seat and the rear limiting seat can be clamped into the corresponding annular limiting groove when being installed on the supporting shaft, so that the annular limiting groove can axially limit the front limiting seat and the rear limiting seat.

3. A liquid hydrogen vacuum insulating gas cylinder according to claim 1 or 2, characterized in that: the structure of two axle beds all includes: the reinforcing cover plate is provided with an installation groove for inserting the end part of the supporting shaft; the front end cap and the rear end cap of the outer cylinder body are respectively provided with a mounting hole, and the two shaft seats are respectively welded and covered on the corresponding mounting holes through the reinforcing cover plates on the shaft seats and are fixed on the corresponding outer cylinder body end caps.

4. A liquid hydrogen vacuum insulating gas cylinder according to claim 3, characterized in that: and low-temperature glue is coated in the mounting grooves of the two shaft seats.

5. A liquid hydrogen vacuum insulating gas cylinder according to claim 3, characterized in that: the mounting groove on the reinforcing cover plate is enclosed by an annular plate welded on the reinforcing cover plate.

6. A liquid hydrogen vacuum insulating gas cylinder according to claim 1 or 2, characterized in that: the front limiting seat and the rear limiting seat are both a hoop.

7. A liquid hydrogen vacuum insulating gas cylinder according to claim 2, characterized in that: the front limiting seat is a hoop with a square inner ring after being clasped, and the bottom of the annular limiting groove corresponding to the front limiting seat is a square bottom which can be matched with the square inner ring of the front limiting seat, so that the annular limiting groove corresponding to the front limiting seat can radially limit the front limiting seat, and the front limiting seat cannot rotate after being installed on the supporting shaft; the front end of the sleeve is provided with a limiting insertion plate exceeding the front end of the inner barrel, the front limiting seat is provided with a limiting insertion groove for inserting the limiting insertion plate, and the limiting insertion plate is inserted into the limiting insertion groove, so that the front limiting seat can radially limit the inner barrel, and the front limiting seat can prevent the inner barrel from rotating and moving.

8. A liquid hydrogen vacuum insulating gas cylinder according to claim 1 or 2, characterized in that: the support shaft is a glass fiber reinforced plastic shaft.

Technical Field

The invention relates to the field of liquid hydrogen vacuum heat-insulation gas cylinders, in particular to a liquid hydrogen vacuum heat-insulation gas cylinder.

Background

The liquid hydrogen vacuum heat insulation gas cylinder is composed of an outer cylinder body and an inner cylinder body positioned in the outer cylinder body, the inner cylinder body is supported in the outer cylinder body through supporting structures at two ends, the supporting structure at the front end of the inner cylinder body is a metal straight pipe with two ends respectively fixed with the inner cylinder body and the outer cylinder body, the length of the metal straight pipe is short due to the limitation of the interval between the inner cylinder body and the outer cylinder body, so that external heat is easily conducted to the inner cylinder body along the short metal straight pipe, low-temperature liquid in the inner cylinder body is easy to evaporate, the supporting structure at the rear end of the inner cylinder body is a combined supporting structure capable of sliding in a displacement mode, the combined supporting structure is composed of metal components, glass steel components and other auxiliary heat insulation materials, the combined supporting structure is complex, and the manufacturing.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the liquid hydrogen vacuum heat insulation gas cylinder is simple and reliable in supporting structure of the inner cylinder body, and external heat is not easy to conduct to the supporting shaft in the inner cylinder body along the supporting structure.

In order to solve the problems, the technical scheme adopted by the invention is as follows: a liquid hydrogen vacuum insulated gas cylinder comprising: outer barrel and the interior barrel of installing in outer barrel, its characterized in that: the inner barrel is provided with a sleeve penetrating through the inner barrel along the axis of the inner barrel, the sleeve and the inner barrel are arranged in a sealing mode, a supporting shaft used for supporting the inner barrel and having high strength and low heat conductivity is arranged in the sleeve in a penetrating mode, a front limiting seat and a rear limiting seat are arranged on the supporting shaft respectively, the inner barrel is located between the front limiting seat and the rear limiting seat, a compression spring is sleeved on the supporting shaft between the inner barrel and the rear limiting seat, one end of the compression spring abuts against the rear limiting seat, the other end of the compression spring abuts against the inner barrel, under the elastic force of the compression spring, the front end of the inner barrel abuts against the front limiting seat and abuts against the top tightly, shaft seats are arranged on the front end socket and the rear end socket of the outer barrel respectively, the two ends of the supporting shaft are inserted into the shaft seats of the corresponding ends respectively, and the supporting shaft can support the inner barrel in a suspension mode in.

Further, the aforesaid liquid hydrogen vacuum insulation gas cylinder, wherein: the supporting shaft at the installation positions of the front limiting seat and the rear limiting seat is provided with an annular limiting groove for the limiting seat to be clamped in, and the front limiting seat and the rear limiting seat can be clamped into the corresponding annular limiting groove when being installed on the supporting shaft, so that the annular limiting groove can axially limit the front limiting seat and the rear limiting seat.

Further, the aforesaid liquid hydrogen vacuum insulation gas cylinder, wherein: the structure of two axle beds all includes: the reinforcing cover plate is provided with an installation groove for inserting the end part of the supporting shaft; the front end cap and the rear end cap of the outer cylinder body are respectively provided with a mounting hole, and the two shaft seats are respectively welded and covered on the corresponding mounting holes through the reinforcing cover plates on the shaft seats and are fixed on the corresponding outer cylinder body end caps.

Further, the aforesaid liquid hydrogen vacuum insulation gas cylinder, wherein: and low-temperature glue is coated in the mounting grooves of the two shaft seats.

Further, the aforesaid liquid hydrogen vacuum insulation gas cylinder, wherein: the mounting groove on the reinforcing cover plate is enclosed by an annular plate welded on the reinforcing cover plate.

Further, the aforesaid liquid hydrogen vacuum insulation gas cylinder, wherein: the front limiting seat and the rear limiting seat are both a hoop.

Further, the aforesaid liquid hydrogen vacuum insulation gas cylinder, wherein: the front limiting seat is a hoop with a square inner ring after being clasped, and the bottom of the annular limiting groove corresponding to the front limiting seat is a square bottom which can be matched with the square inner ring of the front limiting seat, so that the annular limiting groove corresponding to the front limiting seat can radially limit the front limiting seat, and the front limiting seat cannot rotate after being installed on the supporting shaft; the front end of the sleeve is provided with a limiting insertion plate exceeding the front end of the inner barrel, the front limiting seat is provided with a limiting insertion groove for inserting the limiting insertion plate, and the limiting insertion plate is inserted into the limiting insertion groove, so that the front limiting seat can radially limit the inner barrel, and the front limiting seat can prevent the inner barrel from rotating and moving.

Further, the aforesaid liquid hydrogen vacuum insulation gas cylinder, wherein: the support shaft is a glass fiber reinforced plastic shaft.

The invention has the advantages that: the liquid hydrogen vacuum heat insulation gas cylinder adopts the high-strength support shaft penetrating through the inner cylinder body to transversely support the inner cylinder body, and the two ends of the support shaft are fixed with the outer cylinder body through the shaft seats with simple structures, so that the support structure of the inner cylinder body is simple and reliable.

Drawings

Fig. 1 is a schematic structural diagram of a liquid hydrogen vacuum heat-insulating gas cylinder according to the invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is an enlarged schematic view of a portion B in fig. 1.

Fig. 4 is a schematic sectional structure view of C-C in fig. 2.

Fig. 5 is a schematic sectional view of D-D in fig. 2.

FIG. 6 is a schematic sectional view of E-E in FIG. 3.

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, 2, 3 and 6, the liquid hydrogen vacuum heat insulation gas cylinder comprises: the outer cylinder body 1 and the inner cylinder body 2 installed in the outer cylinder body 1, a sleeve 21 penetrating the inner cylinder body 2 along the axis of the inner cylinder body 2 is arranged in the inner cylinder body 2, the sleeve 21 and the inner cylinder body 2 are arranged in a sealing manner, a support shaft 3 with high strength and low thermal conductivity is arranged in the sleeve 21 in a penetrating manner, the support shaft 3 is a glass fiber reinforced plastic shaft in the embodiment, a front limit seat 4 and a rear limit seat 5 are respectively arranged on the support shaft 3, the inner cylinder body 2 is positioned between the front limit seat 4 and the rear limit seat 5, a compression spring 51 is sleeved on the support shaft 3 between the inner cylinder body 2 and the rear limit seat 5, one end of the compression spring 51 is abutted against the rear limit seat 5, the other end of the compression spring 51 is abutted against the inner cylinder body 2, under the elastic force of the compression spring 51, the front end of the inner cylinder body 2 is abutted against the front limit seat 4, and the compression spring 51 is arranged to adapt to the axial displacement of the inner cylinder body 2 caused by the temperature change, the front end socket and the rear end socket of the outer cylinder body 1 are respectively provided with a shaft seat 6, and two ends of the supporting shaft 3 are respectively inserted into the shaft seats 6 at the corresponding ends, so that the supporting shaft 3 can suspend the inner cylinder body 2 in the air and support the outer cylinder body 1.

As shown in fig. 2 and 3, in the present embodiment, the supporting shaft 3 at the installation positions of the front limiting seat 4 and the rear limiting seat 5 is provided with an annular limiting groove 7 for the limiting seat to be inserted into, and when the front and rear limiting seats 4 and 5 are installed on the supporting shaft 3, the front and rear limiting seats are inserted into the corresponding annular limiting groove 7, so that the annular limiting groove 7 can axially limit the front and rear limiting seats 4 and 5.

In this embodiment, the two shaft seats 6 each include: a reinforcing cover plate 61, wherein the reinforcing cover plate 61 is provided with an installation groove 62 for inserting the end part of the support shaft 3, and the installation groove 62 is surrounded by a ring-shaped plate 64 welded on the reinforcing cover plate 61; the front and rear sealing heads of the outer cylinder 1 are both provided with a mounting hole 63, and the two shaft seats 6 are respectively welded and sealed on the corresponding mounting holes 63 through the reinforcing cover plates 61 on the shaft seats and fixed on the corresponding sealing heads of the outer cylinder 1. The mounting grooves 62 of the two shaft seats 6 are coated with low-temperature glue, and the support shaft 3 can be fixed after the low-temperature glue is cured, so that the support shaft 3 cannot rotate. Because the interval between the interior outer barrel is less, so inconvenient inside carries out welded fastening to axle bed 6, just can make the workman weld reinforcement apron 61 so that fixed axle bed 6 outside after setting up reinforcement apron 61 and mounting hole 63.

As shown in fig. 4 and 5, in the present embodiment, the front stopper 4 and the rear stopper 5 are both a hoop. In addition, the front limiting seat 4 is a hoop with a square inner ring after being clasped, and the bottom of the annular limiting groove 7 corresponding to the front limiting seat 4 is a square bottom which can be matched with the square inner ring of the front limiting seat 4, so that the annular limiting groove 7 corresponding to the front limiting seat 4 can radially limit the front limiting seat 4, and the front limiting seat 4 cannot rotate after being installed on the support shaft 3; be provided with the spacing picture peg 8 that surpasss interior barrel 2 front end on sleeve pipe 21 front end, be provided with on spacing seat 4 in the front and supply spacing picture peg 8 male spacing slot 81, spacing picture peg 8 inserts to spacing slot 81 for preceding spacing seat 4 can carry out radial spacing to interior barrel 2, thereby barrel 2 emergence rotary displacement in the spacing seat 4 can prevent before making.