CN101270846A

CN101270846A - Storage tank for low-pressure liquefied hydrogen

Info

Publication number: CN101270846A
Application number: CNA2008100018298A
Authority: CN
Inventors: 朴允昭; 金翼洙; 李东仁; 赵铜衍
Original assignee: NK CO Ltd
Current assignee: Nk Co., Ltd.
Priority date: 2007-03-19
Filing date: 2008-01-09
Publication date: 2008-09-24
Anticipated expiration: 2028-01-09
Also published as: CN101270846B; KR100804789B1; KR20070037734A

Abstract

The invention relates to a liquefied hydrogen storage tank using a vehicle that takes hydrogen as raw material or vehicle with hydrogen fuel battery as a fuel tank. Specifically, the invention provides a storage tank for low-pressure liquefied hydrogen that is provided with a pair of tubular container suspension portions along a length direction of the storage tank as a supporting device for a storage tank provided with an insulating body between an inner container and an outer container. The container suspension portion includes a connection supporting pipe inserted along the inner container and an end supporting pipe penetrating both sides of the storage tank, connecting the supporting pipes by the connection element, which not only minimizes compact or vibration of the storage tank, but also prevents the inner and the outer containers and the pipe lines connected from being damaged, further providing excellently wearable storage tank.

Description

Storage tank for low-pressure liquefied hydrogen

Technical field

The present invention relates to hydrogen is the liquefying hydrogen storage tank that case uses that acts as a fuel in the automobile of fuel or the vehicle that hydrogen fuel cell has been installed, specify for, the storage tank for low-pressure liquefied hydrogen that the present invention relates to, be provided with a pair of container suspension part along the perforation of storage tank length direction, with as the support device that the storage tank of insulator is set between internal container and external container, described container suspension part comprises along internal container connection support tube that inserts and the end portion supports pipe that connects the storage tank both side ends, and connect each support tube by connected element, impact or minimum vibration that storage tank is subjected to, in can also preventing, the damage of external container and connected comb pipeline, thus provide durability good storage tank.

Background technique

In recent years, process of industrialization is quickened, and national income increases to some extent, greatly facilitates our life, improved living standard, the consumption of fossil fuels volume index increases the environmental pollution that causes and becomes serious social concern, particularly but meanwhile,, the automobile that can be called the flower of modern civilization, because its exhaust emissions is just becoming the arch-criminal of pollution of atmosphere, at present, the pollution of atmosphere that vehicle exhaust causes is all being gone into overdrive to administer in countries in the world.

For reducing the pollution of atmosphere that vehicle exhaust causes, present trend is that the rock gas (NG:Natural gas) that popularizes to belong to clean fuel is the Natural gas vehicles of fuel, meanwhile, people carry out the research that this desirable energy of hydrogen fuel is used for automobile, industry and general family just widely, thus the energy problem of attempting to solve the complexity that faces at present.

Above-mentioned hydrogen fuel is not only the element that reserves enrich the most except that carbon and nitrogen element on the earth, and be a kind of clean energy resource, when burning, only generate the nitrogen oxide of trace, can not produce other harmful matter, simultaneously, can be that raw material extracts with the almost endless water that exists on the earth, can regenerate water again after the use, can recycle, be a kind of exhausted never desirable energy.

With regard to the practicability of hydrogen powered vehicle, topmost problem is a hydrogen storage method, the method of utilizing the liquefying hydrogen storage tank and the hydrogen storage method that utilizes metal hydride etc. are arranged, wherein, the liquefying hydrogen storage tank corresponding with the former need possess double layer construction, in heat transfer modes such as partition transmission of heat, radiation and convection current, thereby guarantees the liquefying hydrogen (253 ℃) of utmost point low temperature was preserved more than the about week, simultaneously, need to guarantee 10 between the double layer construction ^-5The vacuum state of holder (Torr) also will use double-layer seal material that aluminium and fiber glass material make as insulator.

Above-mentioned liquefying hydrogen storage tank 100 in the past has the double layer construction of being made up of internal container 101 and external container 102 as shown in Figure 1, in order to store liquefying hydrogen 115; Between described internal container 101 and external container 102, be provided with insulator 103, make it with extraneous adiabatic; Be provided with the person in charge 104 who is used to fill liquefying hydrogen 115 in described storage tank 100 1 sides insertion, and make it connect external container 102 and insulator 103 and internal container 101; The opposite side of described storage tank 100 externally is provided with vacuum chamber 114 on the container 102, to keep the vacuum state between inside and outside the container 101,102.

In addition, the person in charge 104 who inserts along internal container 101 is a basic point with solenoid valve 105, the filling pipe 106 and the liquefying hydrogen pipeline 107 that are divided into liquefying hydrogen 115, wherein, described filling pipe 106 is used to fill liquefying hydrogen 115 and recover hydrogen, and being used for that liquefying hydrogen 115 is supplied to fuel, described liquefying hydrogen pipeline 107 makes use, be provided with liquid level metering mechanism 109 that detects liquefying hydrogen 115 reserves and the electric heating apparatus 110 that makes liquefying hydrogen 115 gasifications on the described internal container 101, in addition, container 101 perforation insulators 103 and external container 102 extensions are provided with the safety valve 108 that is used to prevent the rising of storage tank 100 internal pressures internally.

Two ends at liquefying hydrogen storage tank 100 in the past with said structure, bar-shaped support stick 111 inserts with insulator 103, be arranged between inside and outside the container 101,102, with as being arranged between internal container 101 and the external container 102 and the suspension part (Suspension) of safety supports storage tank 100; And for described support stick 111 is set, one has been fixed the dunnage 112,113 that can insert support stick 111 two end part on inside and outside container 101,102.

There was following shortcoming in the suspension part structure of liquefying hydrogen storage tank 100 in the past: because 111 of supported on both sides rods support internal container 101 and external container 102 along storage tank 100 length directions, therefore, when other side surface direction except that length direction is impacted or is vibrated, stable support can't be provided, inside and outside container 101,102 staggered easily, thereby the various comb pipelines of inside and outside container 101,102 of perforation and the connection part between described support stick 111 and the dunnage 112,113 are damaged easily.

When above-mentioned liquefying hydrogen storage tank 100 uses as the fuel tank of hydrogen powered vehicle, the problems referred to above are more outstanding, therefore, from being provided, the good liquefying hydrogen storage tank angle of durability that can bear the various shock and vibration that produce the vehicle operating considers, said structure is not a preferred version, in addition, the liquefying hydrogen 115 that is stored in the utmost point low temperature in the internal container 101 can make support stick 11 1 low temperature that closely contact with the dunnage 113 of internal container 101 sides shrink, thereby the combination force of reduction and dunnage 112,113 causes the problem that can't normally support storage tank 100.

Summary of the invention

The present invention proposes for addressing the above problem, the purpose of this invention is to provide a kind of storage tank for low-pressure liquefied hydrogen, this storage tank connects along the storage tank length direction and is provided with a pair of container suspension part, with as the support device that between internal container and external container, is provided with the storage tank of insulator, described container suspension part comprises along internal container connection support tube that inserts and the end portion supports pipe that connects the storage tank both side ends, and connect each support tube by connected element, impact or minimum vibration that storage tank is subjected to, in can also preventing, the damage of external container and connected comb pipeline, thus provide durability good storage tank.

In addition, another object of the present invention provides a kind of storage tank of compact structure, specify for, the contact preventing parts that on the end portion supports pipe of forming described container suspension part, are provided with reinforced pipe and make by fiber toughened plastic (FRP) material, the intensity and the heat-insulating property of storage tank have not only been improved, can also prevent because container suspension part low temperature shrinks the holding strength decline phenomenon that causes, and by insert the further support vessels of the reinforcement plate suspension part that is provided with along internal container, thereby increase the holding strength that storage tank bears various impacts or vibration, improve the durability of storage tank greatly, in addition, to be used to fill the integrated inside, tubular bulb suspension part that connects internal container and reinforcement plate central part that is arranged on of comb pipeline of liquefying hydrogen and supply hydrogen fuel and other various liquid level gaugings, thereby not only increased intensity, and realized the integrated of comb pipeline by the pipe suspension part.

For achieving the above object, the invention provides a kind of storage tank for low-pressure liquefied hydrogen, this liquefying hydrogen storage tank has the dual structure of being made up of internal container and external container, be used to store liquefying hydrogen, between described internal container and external container, be provided with insulator with external insulation, be provided with respectively on the described external container be used to fill the filling mouth of liquefying hydrogen and make in, space between the external container keeps the vacuum chamber of vacuum state, and mouthful connect an internal container from described filling and extend and be provided with the comb pipeline, be used to fill liquefying hydrogen and recover hydrogen, connect external container from described internal container simultaneously and extend comb pipeline and the liquid level gauging pipeline that is provided with the supply hydrogen fuel; It is characterized in that, internal container and the external container of forming described storage tank have tubular structure, support by a pair of container suspension part that connects storage tank along its length, described container suspension part comprises the connection support tube that inserts along the internal container length direction and connects the end portion supports pipe of inside and outside container in the storage tank both side ends, and connects by the support tube connected element that is inserted into respective support pipe inboard and to be provided with.

In addition, feature of the present invention is that the end portion supports pipe of described container suspension part comprises: outer tube, described outer tube by the support tube connected element with the state that is fixed in the internal container two side be connected support tube and connect; Reinforced pipe, described reinforced pipe is inserted into described outer tube inside after connecting external container and insulator; End face contact preventing parts, described end face contact preventing parts combine with described reinforced pipe front end, and closely contact with the support tube connected element; Contacts side surfaces prevents parts, and described contacts side surfaces prevents that parts from combining with described reinforced pipe outer surface, and closely contacts with the outer tube inner side surface; Feature of the present invention also is, forms the end face contact preventing parts of described end portion supports pipe and contacts side surfaces and prevents that parts from being made by fiber toughened plastic (FRP) material; Feature of the present invention also is, inserts the reinforcement plate that is provided with the connection support tube that connects the support vessels suspension part along described internal container, and this reinforcement plate is closely contacted with the internal container internal surface; Feature of the present invention also is, insert along its length direction at the central part of described internal container and to be provided with the tubular bulb suspension part, inner integrated being provided with from described the filling mouthful connects being used to that internal container extends and fills the comb pipeline of liquefying hydrogen and recover hydrogen and connect the comb pipeline and the liquid level gauging pipeline that are used to supply with hydrogen fuel that external container extends from described internal container in described pipe suspension part.

Description of drawings

Fig. 1 is the sectional side view of liquefying hydrogen storage tank in the past.

Fig. 2 is the sectional side view of the liquefying hydrogen storage tank that the present invention relates to.

Fig. 3 and Fig. 4 are orthogonal view and the back side sectional drawings of Fig. 2.

Fig. 5 is partly cut-away's stereogram of the liquefying hydrogen storage tank that the present invention relates to.

Fig. 6 is an exploded perspective view of forming the container suspension part of major component of the present invention.

Fig. 7 is the comb schematic representation of the control gear of the liquefying hydrogen storage tank arranged outside that the present invention relates to.

Reference character

1: storage tank, 2: internal container, 3: external container, 4: insulator, 5: vacuum chamber, 5a: seal closure, 6: fill mouth, 7: pipe suspension part (tube suspension), 8: the liquefying hydrogen filling pipeline, 8a: distribution piping, 8b: filling hole, 9: the hydrogen recovery line, 10: the floor detection pipeline, 11: hydrogen uses pipeline, and 12: pipeline is detected at the top, 13: the liquefying hydrogen supply pipeline, 14: liquefying hydrogen detects pipeline, 15: getter (Getter), 16: pipeline dispenser, 17: reinforcement plate, 20: the container suspension part, 21: connect support tube, 22: end portion supports pipe, 23: support tube connected element, 23a: bump, 24: outer tube, 25: reinforced pipe, 26: end face contact preventing parts, 27: contacts side surfaces prevents parts, 30: control gear, 31: vaporizer case, 32:1 vaporizer, 33:2 vaporizer, 34: pressurized gasifier, 35: cooling water Circulation pipe, 36: terminal, 37: gas conditioner, 38: pressure regulator, 39: temperature transducer, 40: liquid level (level) indicator, 41: the fuel supply pipeline, 42:1 gasification pipeline, 43: return line, 44:2 gasification pipeline, V: liquefying hydrogen valve, CV: control valve, SV1, SV2: safety valve

Embodiment

The present invention is described in detail below in conjunction with accompanying drawing.

Fig. 2 is the sectional side view of the liquefying hydrogen storage tank that the present invention relates to; Fig. 3 and Fig. 4 are orthogonal view and the back side sectional drawings of Fig. 2; Fig. 5 is partly cut-away's stereogram of the liquefying hydrogen storage tank that the present invention relates to; Fig. 6 is an exploded perspective view of forming the container suspension part of major component of the present invention; Fig. 7 is the comb schematic representation of the control gear of the liquefying hydrogen storage tank arranged outside that the present invention relates to.

The invention provides the storage tank for low-pressure liquefied hydrogen of a kind of suitable suspension part structure, its overall structure such as Fig. 2 are to shown in Figure 4, has the dual structure of forming by internal container 2 and external container 3, be used to store liquefying hydrogen, between described internal container 2 and external container 3, be provided with the insulator 4 with external insulation, be provided with respectively on the described external container 3 and be used to fill the filling mouth 6 of liquefying hydrogen and make space between inside and outside the

container

2,3 keep the vacuum chamber 5 of vacuum state.

Though the described insulator 4 preferred double-layer seal materials of making by aluminium (Al) and glass fibre (Glass fiber) material that use, but so long as can block transmission of heat and radiation and convection current etc., thereby the material that the liquefying hydrogen (253 ℃) of utmost point low temperature was preserved more than the about week can use, for simplifying accompanying drawing, only illustrate the part-structure of insulator 4, in fact insulator 4 is arranged in the space between whole inside and outside the

container

2,3.

In addition, the degree of vacuum between inside and outside the

container

2,3 that is formed by described vacuum chamber 5 is preferably 10 ^-5About holder (Torr), described vacuum chamber 5 front end being provided with are used to keep bubble-tight seal closure 5a, internal container 2 arranged outside getter (Getter) 15, be used to absorb and the residual gas when removing vacuum chamber 5 and forming vacuum, be provided with liquefying hydrogen filling pipeline 8 and hydrogen recovery line 9 from described filling mouthful 6 extensions, the wall body that described each

comb pipeline

8,9 connects insulators 4 and internal container 2 inserts and is set to internal container 2.

The effect of described liquefying hydrogen filling pipeline 8 and hydrogen recovery line 9 is to storage tank 1 inner hydrogen of filling liquefying hydrogen or the existence of recovery storage tank 1 upper inside, the outlet side of liquefying hydrogen filling pipeline 8 connects the distribution piping 8a that extends along the length direction of internal container 2, and has formed a plurality of filling hole 8b that are used to fill liquefying hydrogen along distribution piping 8a.

Can be as mentioned above, form liquefying hydrogen filling pipeline 8 and hydrogen recovery line 9 respectively by 2 combs, in case of necessity also can be as liquefying hydrogen storage tank in the past, with described liquefying

hydrogen filling pipeline

8 and 9 unifications of hydrogen recovery line is that a comb pipeline and being connected to fills mouthfuls 6, and is undertaken by above-mentioned unified comb pipeline is parallel simultaneously that liquefying hydrogen is filled and the hydrogen recovery.

In addition, through insulator 4 and connect external container 3 and extend and the hydrogen that makes use supply with hydrogen fuel to fuel such as the engine of hydrogen powered vehicle or fuel cells is set uses pipeline 11 and liquefying hydrogen supply pipeline 13, and detect the floor detection pipeline 10 of liquefying hydrogen that internal container 2 stores and hydrogen storage state and pipeline 12 is detected at the top and liquefying hydrogen detects pipeline 14 from described internal container 2.

It is a fuel supply pipeline that described hydrogen uses pipeline 11 and liquefying hydrogen supply pipeline 13 also can unify, pipeline 12 is detected at described floor detection pipeline 10 and top and liquefying hydrogen detection pipeline 14 provides fuel information to the various simulators or the digital test machine of storage tank 1 outer installment, thereby inform liquefying hydrogen surplus and filling constantly, and by the automatic fuel metering feed path of control gear and delivery volume and supply pressure etc.

In a word, as long as can realize above-mentioned functions, described each

level detection pipeline

10,12,14 can adopt the comb form, also can adopt the sensor (Sensor) that can under-253 ℃ utmost point low temperature, use and coupled cable (Cable) form to be arranged on the storage tank 1, major component of the present invention provides can be firm and stably support and have the suspension part structure of the double-deck liquefying hydrogen storage tank 1 that is formed by inside and

outside container

2,3, and the user can change other constituent elements arbitrarily.

The structure of the suspension part (Suspension) of the liquefying hydrogen storage tank 1 of composition major component of the present invention such as Fig. 3 are to shown in Figure 4, length direction along storage tank 1 is provided with a pair of tubular container suspension part 20, in the accompanying drawings, though a pair of container suspension part 20 is oppositely arranged along storage tank 1 diagonal, but avoiding under the condition that other comb pipeline 8～14 disturbs the position is set also can be substantially horizontal or Vertical direction of described container suspension part 20 along storage tank 1.

Described container suspension part 20 illustrates as Fig. 5, comprise the tubular body that connects the storage tank 1 that forms by internal container 2 and external container 3 along its length, wherein, connection support tube 21 that inserts along internal container 2 length directions of storage tank 1 and the end portion supports pipe 22 that connects inside and

outside container

2,3 in storage tank 1 both side ends are connected setting by the support tube connected element 23 of being close to

respective support pipe

21,22 inner side surfaces and inserting.

As mentioned above, as the main constituent elements of the present invention, be provided with a pair of tubular container suspension part 20 along the perforation of storage tank 1 length direction, compare the structure of suspension part in the past of between inside and outside container 101,102, only inserting support stick 111, can be firmer and stably support storage tank 1, thus provide the durability that can fully bear length direction and side surface direction shock and vibration good storage tank 1.

In addition, after will being divided into connection support tube 21 and end portion supports pipe 22 as the described container suspension part 20 of critical piece of the present invention, connect each

support tube

21,22 by support tube connected element 23, a reason that adopts said structure is the container suspension part 20 of adopting said structure, the assembly and disassembly operation of storage tank 1 is become easily, and improved the convenience that storage tank 1 is made and repaired and safeguard.

In addition, even adopting another reason of said structure is that each

support tube

21,22 with tubular structure contacts with the liquefying hydrogen of utmost point low temperature and the low temperature contraction, described

support tube

21,22 more firmly is connected with the outer side surface of support tube connected element 23, simultaneously, even each

support tube

21,22 shrinks owing to low temperature and size deformation occurs at length direction, also can relax above-mentioned size deformation, keep the coupled condition of stable container suspension part 20.

In other words, the low temperature contraction appears if connect support tube 21 and end portion supports pipe 22, will cause internal diameter and length to be dwindled, and the shrinkage amplitude (amount of deformation) of the

support tube

21,22 of tubular structure will be greater than the shrinkage amplitude (amount of deformation) of corynebacterium support tube connected element 23, therefore, when the low temperature contraction took place in container suspension part 20, each

support tube

21,22 will more firmly combine with support tube connected element 23, thereby can not reduce the holding strength of the 20 pairs of storage tanks 1 in container suspension part.

In addition, one face down bonding of end portion supports pipe 22 connects on the wall body that is fixed on internal container 2, so shrinking, the length direction of the container suspension part 20 that liquefying hydrogen causes occurs on the end portion supports pipe 22 and connection support tube 21 that is inserted into internal container 2, because described support tube connected element 23 is inserted into each support tube 21 with certain depth, 22 inside, therefore, even each

support tube

21,22 shrink along its length, size deformation takes place, also can stably keep support tube 21 by support tube connected

element

23,22 coupled condition, and the stress that affacts on the container suspension part 20 owing to size deformation also can alleviate to some extent by support tube connected element 23, thereby can prevent various impacts or vibrate damage to container suspension part 20 and storage tank 1.

In addition, only the left part of storage tank 1 has been carried out subdivision among Fig. 5, thereby the structure of container suspension part 20 is described, the storage tank 1 right side part of not cutting open in the accompanying drawing also has the structure identical with left part, that is, connect the structure that connection support tube 21 and end portion supports pipe 22 are set by support tube connected element 23.

Meanwhile, as Fig. 5 and shown in Figure 6, preferably, described end portion supports pipe 22 comprises: pass through support tube connected element 23 and be connected the outer tube 24 that support tube 21 connects with the state that is fixed on the internal container 2 both sides wall bodies; Perforation external container 3 and insulator 4 are inserted into the reinforced pipe 25 of described outer tube 24 inside; Combine with described reinforced pipe 25 front ends, and the end face contact preventing parts 26 that closely contact with support tube connected element 23; Combine with described reinforced pipe 25 outer surfaces, the contacts side surfaces that closely contacts with outer tube 24 inner side surfaces prevents parts 27; Wherein, described end face contact preventing parts 26 and contacts side surfaces prevent that parts 27 from being made by fiber toughened plastic (FRP) material.

Promptly, with described outer tube 24 itself as end portion supports pipe 22, in the perforation, external container 2, behind 3 the both sides wall body, by support tube connected element 23 with this outer tube 24 be connected support tube 21 and connect, thereby constitute container of the present invention suspension part 20, but liquefying hydrogen storage tank 1 is under the state that uses container provided by the invention suspension part, when being subjected to various impacts or vibration, the most fragile part will be the end portion supports pipe 22 that connects internal container 2 wall bodies on the structure, therefore, make this end portion supports pipe 22 have the double layer construction that forms by outer tube 24 and the reinforced pipe 25 that inserts along its inner side surface, can further improve the holding strength of the 20 pairs of storage tanks 1 in container suspension part.

In addition, end face contact preventing parts 26 and contacts side surfaces are set on reinforced pipe 25 front ends and outer surface thereof prevent parts 27, can prevent because various impacts or vibration, the outer side surface of reinforced pipe 25 is contacted with the inner side surface of outer tube 24 and the surface of support tube connected element 23, and the corrosion of each parts that causes and damage, in addition, described end face contact preventing parts 26 and contacts side surfaces prevent that parts 27 from being made by fiber toughened plastic (FRP) material, not only improve the corrosion protection and the antisitic defect ability of corresponding part, can also improve the sealing and the adiabaticity that reach between support tube connected element 23 and the reinforced pipe 25 between outer tube 24 and the reinforced pipe 25.

In addition, as Fig. 5 and shown in Figure 6, realize being fixed on the outer tube 24 on the internal container 2 both sides wall bodies and connect between the support tube 21 under the substantive state that connects by support tube connected element 23, make reinforced pipe 25 connect the wall body and the insulator 4 of external container 3 with

contact preventing parts

26,27, insert setting along outer tube 24, so after using a period of time, can at an easy rate reinforced pipe 25 be separated from outer tube 24 together with

contact preventing parts

26,27, upgrade.

For the replacing operation that makes reinforced pipe 25 is more prone to, can make reinforced pipe 25 body rear sides become tubulose, it can be inserted change operation rod (Rod), as required, can form screw section or Ka Tai or biting type projection etc. at the inner side surface of appropriate section and change supplementary structure, can also form bump 23a in support tube connected element 23 central authorities, connection support tube 21 can not contacted with outer tube 24.

In addition, as other major component of the present invention, as Fig. 2 and shown in Figure 5, insert the reinforcement plate 17 of the connection support tube 21 that is provided with a plurality of perforation support vessels suspension part 20 along described internal container 2, and these reinforcement plates 17 are closely contacted with internal container 2 internal surfaces, the central part of described internal container 2 inserts along its length and is provided with the pipe suspension part 7 that connects reinforcement plate 17.

Illustrate the embodiment that 3 reinforcement plates 17 are set along internal container 2 in the accompanying drawing, but the user can set the quantity of reinforcement plate 17 arbitrarily, in addition, on the surface of contact of each reinforcement plate 17 self or reinforcement plate 17 and internal container 2, hole or path (not shown) have been formed, each space of the internal container 2 that is enhanced plate 17 divisions is interconnected, thereby can in the space of the internal container of dividing by each reinforcement plate 17 2, store liquefying hydrogen equably, and the liquefying hydrogen and the consequent hydrogen that store are evenly discharged as hydrogen fuel.

As mentioned above, in internal container 2, be provided with reinforcement plate 17 and pipe suspension part 7, thereby by container suspension part 20 and reinforcement plate 17 and the pipe suspension part 7 further holding strengths that strengthen liquefying hydrogen storage tank 1, improve the durability that storage tank 1 bears various impacts or vibration, in addition, 7 inner integrated various comb pipelines and liquid level gauging pipelines have the storage tank 1 of compact structure more thereby provide in described pipe suspension part.

Fig. 2 detailed icon comb pipeline and the integrated state of liquid level gauging pipeline in described pipe suspension part 7, left side wall body and reinforcement plate 17 back extensions that described pipe suspension part 7 connects internal container 2 in the accompanying drawing are set to and internal container 2 right side wall body adjoining positions, under this state, from described mouthful liquefying hydrogen filling pipeline 8 that 6 extensions are provided with and the hydrogen recovery line 9 process pipe suspension parts 7 of filling, perforation is positioned at the reinforcement plate 17 on internal container 2 right sides, and the distribution piping 8a that is connected with described liquefying hydrogen filling pipeline 8 connects each reinforcement plate 17, extends along internal container 2 length directions.

In addition, hydrogen use pipeline 11 and liquefying hydrogen supply pipeline 13 and floor detection pipeline 10 and top detect pipeline 12 with the state that connects the reinforcement plate 17 that internal container 2 right sides are provided with after pipe suspension part 7 sides are extended, through described pipe suspension part 7, stretch out on the container 2 left side wall bodies internally, each pipeline 10～13 that above-mentioned container internally 2 stretches out is along the part that insulator 4 is set direction extension to the right, and the pipeline dispenser 16 of perforation external container 3.

Different therewith, described liquefying hydrogen detects pipeline 14 without pipe suspension part 7, but directly connect bottom surface, internal container 2 right side, and extend to the pipeline dispenser 16 of external container 3 along equidirectional with other pipeline 10～13, described liquefying hydrogen detects pipeline 14 also can be arranged to through tube suspension part 7, and each pipeline 10～14 of above-mentioned process external container 3 pipeline dispenser 16 will be connected with the hydrogen fuel apparatus for controlling of supply of storage tank 1 arranged outside.

Illustrate the practical application example of the hydrogen fuel apparatus for controlling of supply 30 that is arranged on storage tank 1 outside among Fig. 7, described control gear 30 is arranged on the vaporizer case 31 that is fixed in external container 3 outer side surfaces, comprises and No. 2

vaporizers

32,33 and pressurized gasifier 34 for 1 time of the liquefying hydrogen that utilizes hot water work.From each comb pipeline 10～14 that pipeline dispenser 16 is extended, be the center with the liquid level indicator 40 of expression liquefying hydrogen storing state and the terminal 36 of supply capability, form calandria structure by liquefying hydrogen valve V or control valve CV.

The main supply passage of hydrogen fuel of described control gear 30 controls is composed as follows: the hydrogen that extends from pipeline dispenser 16 uses pipeline 11 to be connected with fuel supply pipeline 41, after described liquefying hydrogen supply pipeline 13 extends to 1 the gasification pipeline 42 that is provided with control valve CV through No. 1 vaporizer 32, this 1 time gasification pipeline 42 is connected with other fuel supply pipeline 41 again, and from described 1 time the gasification pipeline 42 isolate return line 43, this return line 43 extends to 2 gasification pipelines 44 that are provided with control valve CV through No. 2 vaporizer 33 inside, and these 2 times gasification pipeline 44 uses pipeline 11 to be connected with the hydrogen that extends to fuel supply pipeline 41 sides again.

In addition, the floor detection pipeline 10 that extends from pipeline dispenser 16 is connected with liquid level indicator 40 with liquefying hydrogen detection pipeline 14, when described top detection pipeline 12 links to each other with pressurized gasifier 34 and liquefying hydrogen detection pipeline 14, be connected with floor detection pipeline 10 by the comb that possesses pressure regulator 38, isolate the comb that another possesses gas conditioner 37 again from the described comb that possesses pressure regulator 38, and this comb is connected with the liquefying hydrogen supply pipeline 13 that extends to No. 1 vaporizer 32 side.

Meanwhile, insert on each

vaporizer

32,33,34 and be provided with the cooling water Circulation pipe 35 that carries out heat exchange with liquefying hydrogen or hydrogen, isolate the comb that is provided with internal container 2 usefulness safety valve SV1 from described 1 gasification pipeline 42, vaporizer case 31 sides are provided with external container 3 safety valve SV2, and the temperature transducer that is provided with on each control valve CV and the

corresponding vaporizer

32,33 is connected setting.

As mentioned above, major component of the present invention is firm and stably support the suspension part structure with double-deck liquefying hydrogen storage tank 1 that inside and

outside container

2,3 form, comprise as the supply passage of the liquefying hydrogen of hydrogen fuel and hydrogen with to its valve of controlling and calandria structure, in addition, the control gear 30 that is formed by the level detection pipeline of representing the liquefying hydrogen storing state and coupled various parts also is not limited to structure shown in Figure 7, and the user can obtain multiple other variant embodiment according to actual needs.

At last, in declarative procedure of the present invention, except that component materials is made special qualification, other most of parts are preferably made by stainless steel or metallic material similar with it, internally,

external container

2,3 is preferably carried out encapsulation process by the position of perforations such as comb, thereby guarantee the degree of vacuum between inside and outside the

container

2,3, prevent that hydrogen fuel from leaking.

In addition, the present invention will be provided with container suspension part 20 on liquefying hydrogen storage tank 1 structure is illustrated as preferred embodiment, but the structure of container provided by the invention suspension part 20, can also be used for the storage tank that other has inside and outside container double layer construction and is provided with thermoinsulation material, for example, with LNG Liquefied natural gas (LNG) is the fuel tank of the vehicle of fuel, promptly be applicable to the storage tank of LNG Liquefied natural gas, this point is self-evident for the personnel that possess the technical field of the invention background context knowledge.

The invention effect

As mentioned above, the invention provides a kind of storage tank for low-pressure liquefied hydrogen, pass through along the storage bin length direction The logical a pair of tubular container suspension part that is provided with is with exhausted as being provided with between internal container and external container The bracing or strutting arrangement of the storage bin of edge body, described container suspension part comprise the connection support of inserting along internal container The end portion supports pipe of pipe and perforation storage bin both side ends, and each supports to pass through the connection of stay pipe attaching parts The pipe, not only can minimize impact or vibration that storage bin is subjected to, can also prevent inside and outside container and with The damage of the comb pipeline of its connection, thus provide durability good storage bin.

In addition, described container suspended portion for after connecting stay pipe and end portion supports pipe, is passed through stay pipe Attaching parts connect each stay pipe, thereby, by the said structure of container suspension part, make the group of storage bin Installation and dismantling are unloaded operation and are become easily, have improved the convenience of storage bin manufacturing, R and M, even each Stay pipe contacts and low-temperature shrink with the liquefying hydrogen of utmost point low temperature, and respective support pipe and stay pipe are connected Relay part more firmly connects, simultaneously, even each stay pipe goes out at length direction owing to low-temperature shrink Existing size deformation also can relax above-mentioned size deformation, keeps the connection status of stable container suspension part.

In addition, the end portion supports pipe of described container suspension part has by outer tube and along its inner enhancing of inserting The double-decker that pipe forms can further improve the container suspension part to the support degree of storage bin, in institute State and also be provided with the contact preventing parts on reinforced pipe front end and the outer surface, can prevent because various impacts or Vibration and make the Surface Contact of reinforced pipe lateral surface and outer tube medial surface and stay pipe attaching parts causes each The phenomenon of component corrosion and damage, described contact preventing parts are made by fiber tempering plastic material, not only Further improve anticorrosion and the antisitic defect function of corresponding component, also improved the close of end portion supports pipe side Envelope property and thermal insulation.

Particularly, by the reinforcement plate that insert to arrange along internal container, the container suspension part assist props up Support can further increase the support degree of the storage bin that bears various impacts or vibration, thereby improves storage Deposit the durability of case, simultaneously, the comb that is used for filling liquefying hydrogen and supplies with hydrogen fuel and various level detection Pipeline is all integrated to be arranged on the inside, pipe suspension part that connects internal container and reinforcement plate central portion, thereby not only Increase intensity by the pipe suspension part, also realized the integrated of comb pipeline.

Claims

1, a kind of storage tank for low-pressure liquefied hydrogen, this liquefying hydrogen storage tank (1) has the dual structure of being made up of internal container (2) and external container (3), be used to store liquefying hydrogen, between described internal container (2) and external container (3), be provided with insulator (4) with external insulation, be provided with respectively on the described external container (3) be used to fill the filling mouth (6) of liquefying hydrogen and make in, external container (2), (3) space between keeps the vacuum chamber (5) of vacuum state, and connect internal containers (2) from described filling mouthful (6) and extend and be provided with the comb pipeline, be used to fill liquefying hydrogen and recover hydrogen, connect external container (3) from described internal container (2) simultaneously and extend comb pipeline and the liquid level gauging pipeline that is provided with the supply hydrogen fuel;

It is characterized in that internal container (2) and the external container (3) of forming described storage tank (1) have tubular structure, described storage tank (1) supports by a pair of container suspension part (20) that connects storage tank (1) along its length;

Described container suspension part (20) comprises the connection support tube (21) that inserts along internal container (2) length direction and connects the end portion supports pipe (22) of inside and outside container (2), (3) in storage tank (1) both side ends, and connects and be provided with by being inserted into relevant support tube (21), (22) inboard support tube connected element (23).

2, storage tank for low-pressure liquefied hydrogen according to claim 1, it is characterized in that, the end portion supports pipe (22) of described container suspension part (20) comprising: outer tube (24), described outer tube (24) by support tube connected element (23) with the state that is fixed in internal container (2) both sides wall body be connected support tube (21) and connect; Reinforced pipe (25), described reinforced pipe (25) is inserted into described outer tube (24) inside after connecting external container (3) and insulator (4); End face contact preventing parts (26), described end face contact preventing parts (26) combine with described reinforced pipe (25) front end, and closely contact with support tube connected element (23); Contacts side surfaces prevents parts (27), and described contacts side surfaces prevents that parts (27) from combining with described reinforced pipe (26) outer surface, and closely contacts with outer tube (24) inner side surface.

3, storage tank for low-pressure liquefied hydrogen according to claim 2 is characterized in that, forms the end face contact preventing parts (26) of described end portion supports pipe (22) and contacts side surfaces and prevents that parts (27) from being made by fiber toughened plastic FRP material.

4, according to any described storage tank for low-pressure liquefied hydrogen in the claim 1 to 3, it is characterized in that, insert the reinforcement plate (17) that is provided with the connection support tube (21) that connects support vessels suspension part (20) along described internal container (2), and this reinforcement plate (17) is closely contacted with internal container (2) internal surface.

5, according to any described storage tank for low-pressure liquefied hydrogen in the claim 1 to 3, it is characterized in that, insert along its length direction at the central part of described internal container (2) and to be provided with tubular bulb suspension part (7), inner integrated being provided with from described fill mouthful (6) connects being used to that internal containers (2) extend and fills the comb pipeline of liquefying hydrogen and recover hydrogen and connect the comb pipeline and the liquid level gauging pipeline that are used to supply with hydrogen fuel that external container (3) extends from described internal container (2) in described pipe suspension part (7).

6, storage tank for low-pressure liquefied hydrogen according to claim 4, it is characterized in that, central part at described internal container (2) is provided with tubular bulb suspension part (7) along its length direction insertion, and making pipe suspension part (7) run through reinforcement plate (17), inner integrated being provided with from filling mouthful (6) connects being used to that internal containers (2) extend and fills the comb pipeline of liquefying hydrogen and recover hydrogen and connect the comb pipeline and the liquid level gauging pipeline that are used to supply with hydrogen fuel that external container (3) extends from described internal container (2) in pipe suspension part (7).