CN104654004A - Metal nitrogen hydride hydrogen storage tank - Google Patents
Metal nitrogen hydride hydrogen storage tank Download PDFInfo
- Publication number
- CN104654004A CN104654004A CN201310602815.2A CN201310602815A CN104654004A CN 104654004 A CN104654004 A CN 104654004A CN 201310602815 A CN201310602815 A CN 201310602815A CN 104654004 A CN104654004 A CN 104654004A
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- China
- Prior art keywords
- hydrogen storage
- nitrogen hydride
- honeycomb
- metal nitrogen
- metal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Abstract
The invention relates to a metal nitrogen hydride hydrogen storage tank and a preparation method thereof. The metal nitrogen hydride hydrogen storage tank consists of a heat preservation sleeve, a tank body, an electric heating rod, a temperature sensor, a honeycomb-shaped metal nitrogen hydride hydrogen storage material/graphite cylindrical block body, a metal heat conduction fin, a tightening bolt, a metal seal gasket, an upper cover, a filter sheet and a high-temperature high-pressure valve; a metal nitrogen hydride hydrogen storage material and graphite are uniformly mixed and then are pressed into the honeycomb-shaped cylindrical block body, the honeycomb-shaped cylindrical bock body is stored in a hydrogen storage tank, and an electric heating body of the hydrogen storage tank is arranged inside the hydrogen storage tank. The metal nitrogen hydride hydrogen storage tank has advantages of simple manufacture process, compact structure, high heating efficiency and the like.
Description
Technical field
The invention belongs to the hydrogen storage technology in Hydrogen Energy field, relate to one with metal nitrogen hydride hydrogen-storing material for hydrogen storage media, compact structure, adopt hydrogen storing tank of inner heating and preparation method thereof.
Background technique
In recent years, the novel light high power capacity storage hydrogen materials such as metal alanates, borohydride, metal nitrogen hydride hydrogen-storing material and amino borane compound, theoretical hydrogen-storage density up to more than 5wt%, for the breakthrough of solid-state hydrogen storage technology brings hope.Wherein metal nitrogen hydride systems hydrogen storage material 2LiNH
2+ MgH
2or Mg (NH
2)
2the reversible capacity of hydrogen storage and release of+2LiH up to 5.5wt%, the hydrogen discharging temperature under 1bar condition only about 90 DEG C, and cost is low relative to other lightweight high power capacity storage hydrogen materials, therefore has a good application prospect.
Metal nitrogen hydride hydrogen-storing material powder density is only 0.36 ~ 0.6g/ml, thermal conductivity is lower than 0.4W/m/K, and generally completing suction at 100-200 DEG C puts hydrogen process, therefore need to heat hydrogen storage material, this is needed to develop a kind of efficiency of heating surface high, and manufacturing process is simple, the metal nitrogen hydride hydrogen storage tank of compact structure.
Summary of the invention
The object of this invention is to provide a kind of metal nitrogen hydride hydrogen storage tank and preparation method thereof.The metal nitrogen hydride hydrogen storage jar structure utilizing the method to make is compact, has inner heating function, can complete and put hydrogen fast.
For achieving the above object, the structure of metal nitrogen hydride hydrogen storage tank employing of the present invention is as follows:
A kind of metal nitrogen hydride hydrogen storage tank, it is surrounded by lagging 1 around tank body 2, at the cylinder block 5 (or following also title honeycomb coaly metal nitrogen hydride/graphite cylinder block 5) of tank body 2 built with the some pieces of honeycomb coalies be pressed into after being mixed by metal nitrogen hydride powder and powdered graphite, and the honeycomb hole of the cylinder block 5 of every block honeycomb coaly is relative, electrical heating rod 3 and temperature transducer 4 is inserted with in the honeycomb hole of up/down perforation, metal heat-conducting fin 6 is provided with between the cylinder block 5 of every block honeycomb coaly, metal heat-conducting fin 6 also has honeycomb eye, the honeycomb hole of its honeycomb eye is relative with the honeycomb hole of the cylinder block 5 of upper and lower honeycomb coaly, the honeycomb hole of up/down perforation is made to be convenient to insert electrical heating rod 3 and temperature transducer 4, tank body 2 is equipped with the upper cover 9 with high-temperature high pressure valve 12.
In metal nitrogen hydride hydrogen storage device of the present invention, described electrical heating rod 3, temperature transducer 4 are respectively one, the central position that described electrical heating rod 3 is positioned at the tank body 2 of hydrogen storing tank is heated, i.e. the central eye of the honeycomb hole of cylinder block 5 and the central eye part of the honeycomb hole of relative metal heat-conducting fin 6; For measuring the temperature of the cylindrical piece 5 in hydrogen storing tank, the point for measuring temperature of temperature transducer 4 is placed in around in the central eye of the honeycomb hole of cylinder block 5 and any one honeycomb hole of the central eye part of the honeycomb hole of relative metal heat-conducting fin 6, by the bottom of the tank body 2 of hydrogen storing tank to the position at the middle part of tank body 2, it is 1/2 position of tank body 2 height.
In metal nitrogen hydride hydrogen storage device of the present invention, described electrical heating rod 3 is in the central position of storage hydrogen device, and the efficiency of heating surface is high.
In metal nitrogen hydride hydrogen storage device of the present invention, described lagging 1 is made up of pottery, as aluminium oxide ceramics.
In metal nitrogen hydride hydrogen storage device of the present invention, described tank body 2 is made up of stainless steel; Electrical heating rod 3 and temperature transducer 4 are arranged in Stainless Steel Tube respectively, the termination of Stainless Steel Tube is welded, to ensure tightness, then the Stainless Steel Tube of electrical heating rod 3 and temperature transducer 4 will be housed, be arranged on the center from the bottom of tank body 2 to tank body 2 of wherein any one honeycomb hole in the honeycomb hole on tank body 2 central position and except the honeycomb hole be positioned on central position respectively.
In metal nitrogen hydride hydrogen storage device of the present invention, described mixed by metal nitrogen hydride powder and powdered graphite after the cylinder block 5 of honeycomb coaly that is pressed into, its content of graphite is 2 ~ 20wt% of cylinder block 5 gross weight.
In metal nitrogen hydride hydrogen storage device of the present invention, described high-temperature high pressure valve 12 is ball valve, to control the turnover of hydrogen; Filter sheet 10 is housed in ball valve, metallic gasket 11 is housed between ball valve and upper cover.
In metal nitrogen hydride hydrogen storage device of the present invention, described upper cover 9 is contained on tank body 2 by clamping bolt 7 and metallic gasket 8.
In metal nitrogen hydride hydrogen storage device of the present invention, the material of tank body 2, upper cover 9 and clamping bolt 7 is stainless steel.
In metal nitrogen hydride hydrogen storage device of the present invention, described metallic gasket 8,11 can select any one in aluminium, copper or silver;
In metal nitrogen hydride hydrogen storage device of the present invention, described filter sheet 10 is the copper powder or stainless steel sintering body that adopt powder metallurgy process to make, filter precision is 0.5 micron, can effective barrier metal nitrogen hydride hydrogen-storing material powder, ensures the unimpeded of hydrogen simultaneously.
In metal nitrogen hydride hydrogen storage device of the present invention, the raw material of described metal nitrogen hydride are 2LiNH
2+ MgH
2or Mg (NH
2)
2+ 2LiH.
The invention provides the making method of metal nitrogen hydride solid hydrogen source system, comprise following steps:
1) processing and fabricating tank body 2, upper cover 9 in advance, welds one in the central position of tank base
stainless Steel Tube, the one end be in inside tank body is welded, and the length of this stainless cylinder of steel is suitable with tank body 2, for placing electrical heating rod; One is welded in 1/2 radial location of tank base
stainless cylinder of steel, the one end be in inside tank body is welded, and this stainless length is the half of length of tank, for laying temperature sensor 4; Interior welds filter precision of upper cover 9 is the stainless steel filter sheet of 0.5 μm, metal nitrogen hydride hydrogen-storing material powder effectively can be stoped to flow out with hydrogen, high-temp and-pressure ball valve door 12 is arranged on upper cover port and goes out;
2) under argon gas or nitrogen atmosphere protective condition, by metal nitrogen hydride hydrogen-storing material and 2 ~ 20wt% graphite through mechanical ball milling 30 ~ 60min, metal nitrogen hydride is mixed with graphite;
3) under argon gas or nitrogen atmosphere protective condition; the mixture of metal nitrogen hydride and graphite is loaded in special mould and suppresses; pressing pressure is 100 ~ 600MPa; make honeycomb coaly metal nitrogen hydride/graphite cylinder block 5; as shown in Figure 2, the pore size of center hole is its shape
the stainless steel placing heating stick with tank base center matches; Remaining hole is in 1/2 position of radius, and pore size is
match with the stainless steel of tank base radius 1/2 position laying temperature sensor;
4) prepare some metal heat-conducting fins 6, its material is fine aluminium or fine copper, and the shape of metal heat-conducting fin 6 is identical with honeycomb coaly metal nitrogen hydride/graphite cylinder block 5, and thickness is 0.05mm ~ 0.5mm:
5) the honeycomb coaly metal nitrogen hydride/graphite cylinder block 5 prepared is loaded in tank body 2 successively with metal heat-conducting fin 6;
6) metallic gasket 8 and upper cover 3 are installed, and clamping bolt 7 is tightened, compress by upper cover 3 and metallic gasket 8 sealing realizing hydrogen;
7) metallic gasket 11 and high-temperature high pressure valve 12 are installed, are realized the hydrogen seal of valve and upper cover 3 by the mode screwing valve crush seal pad;
8) the storage hydrogen device tank body assembled is put into lagging 1, and insert heating stick 3 and temperature transducer 4 from bottom, finally electrical heating rod 3 and temperature transducer 4 are connected in temperature control device (not shown).
The invention has the advantages that: heating equipment is arranged on inside, make the structure of metal nitrogen hydride hydrogen storage tank compacter, and can environment on heating impact, improve the efficiency of heating surface; After powdery metal nitrogen hydride hydrogen-storing material mixes with the graphite of 2-20wt% and is pressed into honeycomb coaly metal nitrogen hydride/graphite cylinder block, can be that the volume density of metal nitrogen hydride hydrogen-storing material is increased to more than 1g/ml, hole in honeycomb coaly metal nitrogen hydride/graphite cylinder block can ensure the circulation of hydrogen, and graphite and metal heat-conducting fin can the capacity of heat transmission of metal nitrogen hydride hydrogen storage tank inside significantly improve; Honeycomb coaly metal nitrogen hydride/graphite cylinder block, after repeatedly inhaling and putting hydrogen mixing, still can keep original shape, also not have coming off of powder.
Simultaneously, the making method of metal nitrogen hydride hydrogen storage tank provided by the present invention, the making that other are the hydrogen storing tank of hydrogen storage media with complex hydrides, borohydride hydrogen storage material etc. can also be used for, the compacting shape of hydrogen storage material and graphite mixture, can change arbitrarily according to the designing requirement of hydrogen source system shape.
Accompanying drawing explanation
Fig. 1 is metal nitrogen hydride hydrogen storage jar structure schematic diagram.
Fig. 2 is honeycomb coaly metal nitrogen hydride/graphite cylinder block schematic diagram.
Fig. 3 is metal nitrogen hydride hydrogen storage tank 180 DEG C of Hydrogen desorption isotherms.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the present invention will be further described, but the present invention is not limited to embodiment below.
As shown in Figure 1, a kind of structure of metal nitrogen hydride hydrogen storage tank comprises: lagging 1, the metal nitrogen hydride hydrogen-storing material/graphite cylinder block 5 of tank body 2, electrical heating rod 3, temperature transducer 4, several honeycomb coalies and metal heat-conducting fin 6, clamping bolt 7, metallic gasket 8, upper cover 9, filter sheet 10, metallic gasket 11 and high-temperature high pressure valve 12.
Wherein, the material of lagging 2 is aluminium oxide ceramics; The external diameter of tank body 2 is 102mm, high 300mm, center weld one is for the heating stick that discharges
stainless Steel Tube, in distance, 23.5mm welds position one for laying temperature sensor
stainless Steel Tube, length is 150mm.The diameter of electrical heating rod 3 is 10mm, long 280mm, and power is 1kw; Temperature transducer 4 is the armouring pt100 thermal resistor of diameter 3mm; Electrical heating rod 3 and temperature transducer 4 are inserted in tank body 2 from bottom respectively
stainless Steel Tube and
in Stainless Steel Tube; Temperature control device (not shown) controls the temperature in hydrogen storing tank by electrical heating rod 3 and temperature transducer 4; The material of metallic gasket 8 and 11 is red copper; Filter sheet 10 adopts the stainless steel filter sheet made of powder metallurgy process, and its filter precision is 0.5 micron, can effective barrier metal nitrogen hydride powder, ensures the unimpeded of hydrogen simultaneously.
By Li
2mg (NH)
2metal nitrogen hydride and 10wt% graphite; after 60min mechanical lapping mixes; under nitrogen atmosphere protection; load in special grinding tool; honeycomb coaly metal nitrogen hydride/graphite cylinder block 5 that diameter is 93.5mm is pressed under 600MPa pressure; its center-hole diameter 14.5mm, being uniformly distributed 6 diameters in radius 23.5mm position is 6.5mm aperture, as shown in Figure 2.
Metal heat-conducting fin 6 adopts the disk that the 0.1mm of aluminium matter is thick, and its external diameter is 93.5mm, center-hole diameter 14mm, and being uniformly distributed 6 diameters in radius 23.5mm position is 6.5mm aperture.
Successively some honeycomb coaly metal nitrogen hydride/graphite cylinder blocks 5 of above-mentioned preparation and some metal heat-conducting fins 6 are loaded in tank body 2.
Metallic gasket 8, upper cover 9 are installed, screw with clamping bolt 7, realize the gas seal between upper cover 9 and tank body 2 by extrusion metal sealing gasket 8.
Metallic gasket 11 and high-temperature high pressure valve 12 being installed, realizing the sealing of gas by screwing high-temperature high pressure valve 12 extrusion metal sealing gasket 11.
By the above-mentioned Li prepared
2mg (NH)
2metal nitrogen hydride hydrogen storage tank, puts into lagging 1, inserts electrical heating rod 3 and temperature transducer 4, and connect temperature control device (not shown) from bottom.
Fig. 3 is Li of the present invention
2mg (NH)
2the Hydrogen desorption isotherms of metal nitrogen hydride hydrogen storage tank when being heated to 200 DEG C, can release 750 liters of hydrogen fast in 60 minutes, total hydrogen desorption capacity can reach 1040 liters.
Claims (8)
1. a metal nitrogen hydride hydrogen storage tank, it is surrounded by lagging (1) around tank body (2), at the cylinder block (5) of tank body (2) built with the some pieces of honeycomb coalies be pressed into after being mixed by metal nitrogen hydride powder and powdered graphite, and the honeycomb hole of the cylinder block (5) of every block honeycomb coaly is relative, electrical heating rod (3) and temperature transducer (4) is inserted with in the honeycomb hole of up/down perforation, metal heat-conducting fin (6) is provided with between the cylinder block (5) of every block honeycomb coaly, metal heat-conducting fin (6) also has honeycomb eye, the honeycomb hole of its honeycomb eye is relative with the honeycomb hole of the cylinder block (5) of upper and lower honeycomb coaly, the honeycomb hole of up/down perforation is made to be convenient to insert electrical heating rod (3) and temperature transducer (4), tank body (2) is equipped with the upper cover (9) with high-temperature high pressure valve (12).
2. metal nitrogen hydride hydrogen storage tank according to claim 1, it is characterized in that: described electrical heating rod (3), temperature transducer (4) are respectively one, the central position that described electrical heating rod (3) is positioned at the tank body (2) of hydrogen storing tank is heated, i.e. the central eye of the honeycomb hole of cylinder block (5) and the central eye part of the honeycomb hole of relative metal heat-conducting fin (6); Temperature transducer (4) is for measuring the temperature of the cylindrical piece (5) in hydrogen storing tank, the point for measuring temperature of temperature transducer (4) is placed in around in the central eye of the honeycomb hole of cylinder block (5) and any one honeycomb hole of the central eye part of the honeycomb hole of relative metal heat-conducting fin (6), by the bottom of the tank body (2) of hydrogen storing tank to the position at the middle part of tank body (2), it is 1/2 position of tank body (2) height.
3. metal nitrogen hydride hydrogen storage tank according to claim 1, is characterized in that: described tank body (2) is made up of stainless steel; Electrical heating rod (3) and temperature transducer (4) are arranged in Stainless Steel Tube respectively, the termination of Stainless Steel Tube is welded, to ensure tightness, the Stainless Steel Tube of electrical heating rod (3) and temperature transducer (4) then will be housed, be arranged on the center from the bottom of tank body (2) to tank body (2) of wherein any one honeycomb hole in the honeycomb hole on tank body (2) central position and except the honeycomb hole be positioned on central position respectively.
4. the metal nitrogen hydride hydrogen storage tank according to claim 1 or 3; it is characterized in that: described mixed by metal nitrogen hydride powder and powdered graphite after the cylinder block (5) of honeycomb coaly that is pressed into; be by metal nitrogen hydride powder with powdered graphite after mechanical ball milling method mixes; under argon gas or nitrogen atmosphere protection, mold pressing forms, and compacting pressure is 100 ~ 600Mpa.
5. the metal nitrogen hydride hydrogen storage tank according to claim 1 or 4, it is characterized in that: described mixed by metal nitrogen hydride powder and powdered graphite after the cylinder block (5) of honeycomb coaly that is pressed into, its content of graphite is 2 ~ 20wt% of cylinder block (5) gross weight.
6. the metal nitrogen hydride hydrogen storage tank according to claim 1 or 4 or 5, is characterized in that: the raw material of described metal nitrogen hydride are 2LiNH
2+ MgH
2or Mg (NH
2)
2+ 2LiH.
7. metal nitrogen hydride hydrogen storage tank according to claim 1, is characterized in that: described high-temperature high pressure valve (12) is ball valve, to control the turnover of hydrogen; Filter sheet (10) is housed in ball valve, metallic gasket (11) is housed between ball valve and upper cover.
8. metal nitrogen hydride hydrogen storage tank according to claim 1, is characterized in that: described upper cover (9) is contained on tank body (2) by clamping bolt (7) and metallic gasket (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310602815.2A CN104654004A (en) | 2013-11-25 | 2013-11-25 | Metal nitrogen hydride hydrogen storage tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310602815.2A CN104654004A (en) | 2013-11-25 | 2013-11-25 | Metal nitrogen hydride hydrogen storage tank |
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| CN104654004A true CN104654004A (en) | 2015-05-27 |
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ID=53245455
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108993324A (en) * | 2018-08-15 | 2018-12-14 | 四川大学 | A kind of metal hydride reactor of gradient filling expanded graphite |
| CN109888334A (en) * | 2019-02-11 | 2019-06-14 | 一汽解放汽车有限公司 | A kind of Small Solid hydrogen storage-releases hydrogen production device |
| RU2729567C1 (en) * | 2019-12-18 | 2020-08-07 | Федеральное государственное бюджетное учреждение науки Институт проблем химической физики Российской Академии наук (ФГБУН ИПХФ РАН) | Method of increasing the efficiency of metal-hydride heat exchangers |
| WO2021213501A1 (en) * | 2020-04-24 | 2021-10-28 | 永安行科技股份有限公司 | Hydrogen storage device, safety device, hydrogen storage system, temperature control system, temperature control method, and hydrogen-powered vehicle |
| CN114294559A (en) * | 2021-12-30 | 2022-04-08 | 上海镁源动力科技有限公司 | Solid hydrogen storage and release system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108993324A (en) * | 2018-08-15 | 2018-12-14 | 四川大学 | A kind of metal hydride reactor of gradient filling expanded graphite |
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| CN109888334A (en) * | 2019-02-11 | 2019-06-14 | 一汽解放汽车有限公司 | A kind of Small Solid hydrogen storage-releases hydrogen production device |
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| CN114294559A (en) * | 2021-12-30 | 2022-04-08 | 上海镁源动力科技有限公司 | Solid hydrogen storage and release system |
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Application publication date: 20150527 |
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