CN112664822A - Highway transportation formula liquid helium storage tank braced system - Google Patents
Highway transportation formula liquid helium storage tank braced system Download PDFInfo
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- CN112664822A CN112664822A CN202011596939.0A CN202011596939A CN112664822A CN 112664822 A CN112664822 A CN 112664822A CN 202011596939 A CN202011596939 A CN 202011596939A CN 112664822 A CN112664822 A CN 112664822A
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Abstract
The invention discloses a road transport type liquid helium storage tank supporting system which comprises an inner container, an outer container and a heat insulation supporting rod. The heat insulation support rods are arranged in a vacuum interlayer at the end socket side between the inner container and the outer container, and are radially arranged near the end socket of the storage tank in a twelve-point installation mode, and 6 end sockets are arranged at each side, and the total number of the end sockets is 12. The included angle between the support rods and the axis of the storage tank is 41 degrees, and the included angle between every two support rods is 60 degrees. The heat insulation support rod is made of epoxy glass fiber reinforced plastics, and is hinged with the inner container and the outer container through the support rod-outer container lifting lug, the support rod-inner container lifting lug and the inner container connecting block and the outer container connecting block, so that the thermal stress of the support system in the deep low-temperature environment is reduced. Reinforcing rings are respectively arranged on the inner container and the outer container to prevent the inner container and the outer container from being unstable under pressure; the design of the structures improves the structural strength of the road transportation type liquid helium storage tank, thereby achieving the purpose of safe liquid helium transportation.
Description
Technical Field
The invention belongs to the technical field of low-temperature pressure containers, and particularly relates to a road transportation type liquid helium storage tank supporting system.
Background
Helium is a rare strategic resource and is mainly applied to the fields of space exploration, national defense and military industry, medical nuclear magnetic resonance, leak detection and the like. In recent years, with the adjustment of the world energy pattern, the demand for new energy such as liquid helium is increasing at home and abroad, so that the corresponding liquid helium transportation and storage equipment is used more and more frequently. Moreover, the research on the storage and transportation technology of liquid helium at home and abroad is also the key point of research. At present, the equipment widely used for liquid helium transportation is mainly a road tanker, and the core of the equipment is a cryogenic insulation liquid helium storage tank. The cryogenic insulation liquid helium storage tank not only reduces the evaporation rate of liquid helium in the transportation process and ensures that the liquid helium is in a liquid phase in the transportation process, but also has the characteristics of flexibility, safety, repeated filling and the like. The liquid helium storage tank mainly comprises an inner container, an outer container, a support system and an insulation system, wherein the insulation system is used for keeping the liquid helium cold between the inner container and the outer container by adopting a vacuum multi-layer insulation structure, and the support system is mainly used for fixing the relative positions of the inner container and the outer container and preventing the inner container and the outer container from being contacted to cause thermal short circuit. Meanwhile, in the processes of acceleration, deceleration and turning of the tank car, inertia and centrifugal force act on the liquid helium storage tank to apply extra acceleration load, and the support system resists the influence of the inertia and the centrifugal force on the storage tank, so that the safe and efficient transportation of the liquid helium is ensured.
However, compared with other cryogenic liquids, liquid helium has a temperature as low as 4.2K, which is the lowest temperature cryogenic liquid known at present, and the requirement of the liquid helium storage tank on cold insulation performance is very high. Moreover, as a supporting system for strongly guaranteeing the structural safety of the storage tank, the structure, installation form and material of the supporting system often affect the heat insulation performance of the storage tank, which is particularly shown in the following aspects: firstly, in order to ensure the structural safety of the liquid helium storage tank, a support system is generally directly welded on an inner container and an outer container, so that the contact form of the support system and the inner container and the outer container is surface contact, namely the structural design of the support system of the liquid helium storage tank has unreasonable parts, so that heat leakage entering the inner container of the storage tank through the support system is large, the liquid helium is violently evaporated, the loss of the liquid helium is caused, and the evaporation of the liquid helium causes the pressure in the storage tank to be increased, so that the storage tank is provided with a safety problem; secondly, the connection form of the liquid helium storage tank supporting system usually adopts rigid connection, the temperature difference at two ends of the supporting system is very large, so that the thermal stress is large, and the stress concentration phenomenon usually occurs because two sides of the support are restrained by the fixed ends. Moreover, inertia and centrifugal force generated in the processes of acceleration, deceleration and turning of the tank car are coupled with thermal stress, so that a supporting system of the storage tank fails, a thermal short circuit is caused, liquid helium evaporates, and an inner container of the storage tank is rapidly pressurized, so that production safety accidents are caused, and huge economic loss is brought.
Disclosure of Invention
In view of the above-mentioned problems, the present invention is directed to: under the condition of meeting the national relevant standards, the highway transportation type liquid helium storage tank supporting system structure is provided, and on the premise of ensuring the requirement of the heat insulation performance of the storage tank, the highway transportation type liquid helium storage tank can work safely and efficiently in the transportation process.
In order to achieve the purpose, the invention provides a road transportation type liquid helium storage tank supporting system, which comprises a heat insulation supporting rod, a supporting rod-outer container lifting lug, an outer container connecting block, a supporting rod-inner container lifting lug, an inner container connecting block, an inner container supporting column, an outer container reinforcing ring and an inner container reinforcing ring, and is characterized in that:
the heat insulation support rod is arranged in a vacuum interlayer on the end enclosure side between the inner container and the outer container, one end of the heat insulation support rod is connected with the outer container connecting block through a support rod-outer container lifting lug, and the other end of the heat insulation support rod is connected with the inner container connecting block through a support rod-inner container lifting lug.
Furthermore, the outer container connecting block is hinged with the supporting rod-outer container lifting lug through the lifting lug, and the inner container connecting block is hinged with the supporting rod-inner container lifting lug through the lifting lug, so that cold shrinkage of the inner container is compensated, and thermal stress of the support system in the deep low-temperature environment is reduced.
The total 12 heat insulation supporting rods are installed in a twelve-point supporting mode, 6 sealing heads on each side are distributed radially, the sealing heads on two sides are symmetrical, and the included angle between every two adjacent supporting rods is 60 degrees and is 41 degrees with the axis of the storage tank. The materials of the heat-insulating support rod and the support rod-outer container lifting lugs and the support rod-inner container lifting lugs at the two ends of the heat-insulating support rod are all epoxy glass fiber reinforced plastics, so that the strength and the stability of the storage tank support system are ensured.
The inner container supporting columns are cylindrical and hollow on the outer sides, the inner container supporting columns are welded to the top of the inner container end socket, 2 inner container supporting columns are respectively installed on each side end socket, the inner container supporting columns are made of the same material as the inner container and are made of 316L austenitic low-temperature stainless steel, the outer container connecting block is made of the same material as the outer container and is made of Q345R low alloy steel.
The outer container connecting blocks are welded on the inner wall of the outer container and close to the cylindrical end part of the outer container, and the number of the outer containers on each side is 6, and the outer containers are distributed in a central symmetry mode about the axis of the storage tank; the inner container connecting block is arranged on the inner container supporting columns, and 6 inner container supporting columns are arranged on each side of the inner container supporting columns and are distributed in a central symmetry mode about the axis of the storage tank.
The outer container is reinforced by a reinforcing ring, and the reinforcing ring of the outer container is arranged on the outer side of the outer container so as not to influence the installation of the heat insulation structure; the reinforcing ring of the outer container adopts 12.6I-steel with the cross-sectional area of 18.1cm2Theoretical weight 14.2kg/m, total 3, the distance between two adjacent reinforcing rings is 3m, and the material is Q345R low alloy steel; the inner container is reinforced by a reinforcing ring, and the reinforcing ring of the inner container is arranged on the inner side of the content so as not to influence the installation of the heat insulation structure; the reinforcing ring of the inner container adopts a # 10I-steel, and the section area is 14.3cm2The theoretical weight is 11.2kg/m, the total number is 2, the distance between two adjacent reinforcing rings is 4m, and the material is 316L austenitic low-temperature stainless steel material. The capacity of the storage tank for resisting cold shrinkage of the inner container and instability of external pressure of the outer container is improved.
The saddles are symmetrically welded near end sockets on two sides of the outer container, the number of the saddles is 2 in total, the distance is 7m, and Q345R low alloy steel is adopted and is made of the same material as the outer container.
The technical idea adopted by the invention is as follows:
(1) the supporting system of the road transportation type liquid helium storage tank is changed, the relative positions of the inner container and the outer container are fixed in a twelve-point supporting mode, the sealing head on each side is hinged by 6 epoxy glass fiber reinforced plastic heat-insulating supporting rods which are symmetrically distributed around the axis center of the storage tank, and the number of the heat-insulating supporting rods is 12. The hinge connection form of the heat insulation support rod and the inner container and the hinge connection form of the heat insulation support rod and the inner container are in lifting lug installation, so that not only is the thermal short circuit caused by contact of the inner container and the outer container avoided, but also the cold shrinkage of the inner container in a deep low temperature environment is compensated.
(2) The materials of the heat insulation supporting rod, the supporting rod-outer container lifting lug and the supporting rod-inner container lifting lug are all epoxy glass fiber reinforced plastics with higher specific strength and low heat conductivity coefficient, so that the structural strength of the supporting system is ensured, and the heat leakage of the heat insulation system is reduced.
(3) The I-shaped steel reinforcing rings are arranged on the wall surfaces of the inner container and the outer container, and the inner container reinforcing rings are arranged on the inner side of the inner container, so that the capacity of the storage tank for resisting cold shrinkage instability of the inner container is improved, and meanwhile, the installation of a vacuum multi-layer heat insulation structure is prevented from being influenced; the outer container reinforcing ring is arranged on the outer side of the outer container, so that internal pressure instability of the inner container and external pressure instability of the outer container are prevented.
The invention has the beneficial effects that:
12 heat insulation support rods are introduced, and hinged connection is realized by adopting lifting lug type installation, so that cold shrinkage of the inner container is compensated. The special connection of the inner container, the outer container and the heat insulation support rod leads to the improvement of the thermal contact resistance at the joint, so that the heat conduction and leakage quantity of the storage tank are reduced, and the structural safety of the storage tank is improved on the premise of not losing the cold insulation performance.
The materials of the heat insulation support rods and the joints thereof adopt epoxy glass fiber reinforced plastics with high specific strength and low heat conductivity coefficient, so that the heat leakage of the support system is reduced.
Drawings
FIG. 1 is a front view of a highway transportation type liquid helium storage tank support system of the present invention;
FIG. 2 is a left side view of a highway transportation type liquid helium tank support system of the present invention;
FIG. 3 is a partial schematic view of a lifting lug connection for a highway transportation type liquid helium tank structure according to the present invention;
FIG. 4 is a schematic view of an insulated support rod of a highway transportation type liquid helium tank support system of the present invention;
FIG. 5 is a schematic view of the reinforcing rings of the inner and outer containers of the highway transportation type liquid helium tank support system of the present invention;
in the figure: the vacuum insulation device comprises an inner container 1, a vacuum interlayer 2, an outer container 3, a heat insulation support rod 4, a support rod-outer container lifting lug 5, an outer container connecting block 6, a support rod-inner container lifting lug 7, an inner container connecting block 8, an inner container supporting column 9, an outer container reinforcing ring 10, an inner container reinforcing ring 11 and a saddle 12.
Detailed Description
The invention will be described in further detail with reference to the following figures and specific embodiments:
the invention relates to a road transport type liquid helium storage tank supporting system shown in the attached figures 1 and 2, which comprises an inner container 1, a vacuum interlayer 2 and an outer container 3, wherein the vacuum interlayer 2 is arranged between the inner container 1 and the outer container 3, a heat insulation system is arranged, the inner container 1 and the outer container 3 are connected in the vacuum interlayer at the end sockets of the inner container 1 and the outer container 3 by heat insulation supporting rods 4, the heat insulation supporting rods 4 are symmetrically arranged at the left side and the right side of the storage tank in a split manner, 6 heat insulation supporting rods are arranged at the end sockets at each side, the total number of the heat insulation supporting rods is 12, the included angle between every two adjacent heat insulation supporting rods 4 is 60 degrees, the included angle between each heat insulation supporting rod 4 and the axis of the storage tank is 41 degrees.
One end of the heat insulation support rod 4 is provided with a support rod-outer container lifting lug 5, the support rod-outer container lifting lug 5 is hinged to the outer container 3 through an outer container connecting block 6 welded on the outer container 3, the other end of the heat insulation support rod 4 is provided with a support rod-inner container lifting lug 7, and the support rod-inner container lifting lug 7 is hinged to an inner container supporting column 9 arranged on an end socket of the inner container 1 through an inner container connecting block 8. The connection form not only compensates cold shrinkage under the deep low temperature environment and reduces thermal stress, but also increases thermal resistance of a contact point and reduces heat leakage of the support system.
The heat insulation support rod 4, the support rod-outer container lifting lug 5 and the support rod-inner container lifting lug 7 are all made of epoxy glass fiber reinforced plastic materials with high specific strength and low heat conductivity coefficient, so that the strength of the support system is improved, and heat leakage of the support system is reduced.
The outer container connecting blocks 6 are symmetrically mounted near the cylindrical end of the tank, 6 on each side, and are distributed with central symmetry about the axis of the tank, for a total of 12. The material of the outer container connecting block 6 is consistent with that of the outer container 3, and Q345R low alloy steel is adopted, so that the connecting strength and stability of the outer container of the storage tank and the supporting system are improved.
The inner container supporting columns 9 are symmetrically arranged on the sealing heads of the inner container 1, the inner container connecting blocks 8 are arranged on the inner container supporting columns 9 in a central symmetrical distribution mode, and 6 inner container supporting columns are arranged on each side, and the total number of the inner container supporting columns is 12. The materials of the inner container supporting column 9 and the inner container connecting block 8 are consistent with those of the inner container, 316L austenitic stainless steel is adopted, and the connecting strength and stability of the inner container and the supporting system in the storage tank are improved.
The inner wall of the inner container 1 is reinforced by a reinforcing ring 11, the reinforcing ring is made of # 10I-steel, the material is 316L austenitic stainless steel, and the cross-sectional area is 14.3cm2The theoretical weight is 11.2kg/m and is 2, the distance is 4m, the instability of the inner container caused by the higher inner pressure of the inner container is prevented, and the installation of the multilayer heat insulation system is not influenced.
The outer wall of the outer container 2 is reinforced by a reinforcing ring 10, the reinforcing ring is made of # 12.6I-steel, the material is Q345R low alloy steel, and the cross-sectional area is 18.1cm2The theoretical weight is 14.2kg/m and 3 in total, and the distance is 3m, so that the outer container 2 is prevented from being unstable due to external pressure caused by atmospheric pressure.
The deep low temperature storage tank is arranged on a deep low temperature liquid conveying tank car by adopting a fixed saddle 12, the saddle is made of Q345R, the total number is 2, and the distance is 7 m.
Claims (5)
1. The utility model provides a highway transportation formula liquid helium storage tank braced system, includes inner container (1), vacuum intermediate layer (2), outer container (3), adiabatic bracing piece (4), bracing piece-outer container lug (5), outer container connecting block (6), bracing piece-inner container lug (7), inner container connecting block (8), inner container support column (9), outer container reinforcing ring (10), inner container reinforcing ring (11), saddle (12), its characterized in that: the vacuum interlayer (2) is arranged between the inner container (1) and the outer container (3), the inner container (1) is fixed relative to the outer container (3) through a heat insulation support rod (4), one end of the heat insulation support rod (4) is hinged to an outer container connecting block (6) through a support rod-outer container lifting lug (5), and the other end of the heat insulation support rod is hinged to an inner container connecting block (8) through a support rod-inner container lifting lug (7).
2. The road transport liquid helium tank support system of claim 1, wherein: the heat insulation support rods (4) used for fixing the relative positions of the inner container (1) and the outer container (3) and the support rod-outer container lifting lugs (5) and the support rod-inner container lifting lugs (7) at the two ends are made of epoxy glass fiber reinforced plastics and are arranged on the vacuum interlayer (2), 6 sealing heads are arranged at each side and are distributed in a radial mode, 12 supporting rods are arranged in total, and the included angle between each two supporting rods is 41 degrees between each two supporting rods and the axis of the storage tank.
3. The road transport liquid helium tank support system of claim 1, wherein: the outer container connecting block (6) is welded on the inner wall of the outer container (3), the inner container connecting block (8) is installed on an inner container supporting column (9), the inner container (1) and the inner container supporting column (9) are made of 316L austenitic low-temperature stainless steel materials, and the outer container (3) and the outer container connecting block (4) are made of Q345R low-alloy steel.
4. The road transport liquid helium tank support system of claim 1, wherein: the inner container supporting columns (9) are cylindrical and welded to the top of the end socket of the inner container (1), and the heat insulation supporting rods and the outer container lifting lugs (7) are welded to the cylindrical parts of the inner container supporting columns (9) through inner container connecting blocks (8) and are distributed in a centrosymmetric mode.
5. The road transport liquid helium tank support system of claim 1, wherein: the outer container reinforcing rings (10) are made of # 12.6I-steel, the number of the reinforcing rings is 3, the spacing between the reinforcing rings is 3m, the material is Q345R low alloy steel, the inner container reinforcing rings (11) are made of # 10I-steel, the number of the reinforcing rings is 2, the spacing between the reinforcing rings is 4m, and the material is 316L austenitic low-temperature stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011596939.0A CN112664822A (en) | 2020-12-29 | 2020-12-29 | Highway transportation formula liquid helium storage tank braced system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011596939.0A CN112664822A (en) | 2020-12-29 | 2020-12-29 | Highway transportation formula liquid helium storage tank braced system |
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| Publication Number | Publication Date |
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| CN112664822A true CN112664822A (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011596939.0A Withdrawn CN112664822A (en) | 2020-12-29 | 2020-12-29 | Highway transportation formula liquid helium storage tank braced system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909602A (en) * | 2022-06-16 | 2022-08-16 | 江苏国富氢能技术装备股份有限公司 | Low-temperature liquefied gas storage device |
| CN115479207A (en) * | 2022-10-18 | 2022-12-16 | 南通中集能源装备有限公司 | Low-temperature storage tank |
| CN115585394A (en) * | 2022-10-10 | 2023-01-10 | 中国核动力研究设计院 | Modular safety protection system of high-temperature explosive hazard equipment |
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| US1863958A (en) * | 1929-04-24 | 1932-06-21 | Robert G Wulff | Container for compressed or liquefied gas |
| US2528780A (en) * | 1946-01-31 | 1950-11-07 | Linde Air Prod Co | Apparatus for dispensing liquefied gases |
| US2863297A (en) * | 1955-03-29 | 1958-12-09 | Herrick L Johnston Inc | Method and apparatus for storing liquified gases |
| DE102008054090A1 (en) * | 2008-10-31 | 2010-05-12 | Mt Aerospace Ag | Container e.g. road tanker, for e.g. storing dioxygen of aircraft, has inner casing mounted in outer casing over bars that transfer mechanical forces and/or torques, where respective ends of bars are connected to casings |
| CN111771080A (en) * | 2018-03-08 | 2020-10-13 | 乔治洛德方法研究和开发液化空气有限公司 | Container for storing and transporting liquefied gases |
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2020
- 2020-12-29 CN CN202011596939.0A patent/CN112664822A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1863958A (en) * | 1929-04-24 | 1932-06-21 | Robert G Wulff | Container for compressed or liquefied gas |
| US2528780A (en) * | 1946-01-31 | 1950-11-07 | Linde Air Prod Co | Apparatus for dispensing liquefied gases |
| US2863297A (en) * | 1955-03-29 | 1958-12-09 | Herrick L Johnston Inc | Method and apparatus for storing liquified gases |
| DE102008054090A1 (en) * | 2008-10-31 | 2010-05-12 | Mt Aerospace Ag | Container e.g. road tanker, for e.g. storing dioxygen of aircraft, has inner casing mounted in outer casing over bars that transfer mechanical forces and/or torques, where respective ends of bars are connected to casings |
| CN111771080A (en) * | 2018-03-08 | 2020-10-13 | 乔治洛德方法研究和开发液化空气有限公司 | Container for storing and transporting liquefied gases |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909602A (en) * | 2022-06-16 | 2022-08-16 | 江苏国富氢能技术装备股份有限公司 | Low-temperature liquefied gas storage device |
| CN115585394A (en) * | 2022-10-10 | 2023-01-10 | 中国核动力研究设计院 | Modular safety protection system of high-temperature explosive hazard equipment |
| CN115585394B (en) * | 2022-10-10 | 2024-05-28 | 中国核动力研究设计院 | Modularized safety protection system for high-temperature explosive dangerous equipment |
| CN115479207A (en) * | 2022-10-18 | 2022-12-16 | 南通中集能源装备有限公司 | Low-temperature storage tank |
| CN115479207B (en) * | 2022-10-18 | 2024-05-14 | 南通中集能源装备有限公司 | Low-temperature storage tank |
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Application publication date: 20210416 |
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