CN107859871A - A kind of metal hydride hydrogen storage unit and its method for storing metal hydride - Google Patents
A kind of metal hydride hydrogen storage unit and its method for storing metal hydride Download PDFInfo
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- CN107859871A CN107859871A CN201610843106.7A CN201610843106A CN107859871A CN 107859871 A CN107859871 A CN 107859871A CN 201610843106 A CN201610843106 A CN 201610843106A CN 107859871 A CN107859871 A CN 107859871A
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- hydrogen
- metal hydride
- storage unit
- hydrogen storage
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- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 139
- 239000001257 hydrogen Substances 0.000 title claims abstract description 139
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 130
- 229910052987 metal hydride Inorganic materials 0.000 title claims abstract description 46
- 150000004681 metal hydrides Chemical class 0.000 title claims abstract description 46
- 238000003860 storage Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 47
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 29
- 239000000956 alloy Substances 0.000 claims abstract description 29
- 150000004678 hydrides Chemical class 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 229910052804 chromium Inorganic materials 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 229910052748 manganese Inorganic materials 0.000 claims description 9
- 229910052750 molybdenum Inorganic materials 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical group [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 238000002474 experimental method Methods 0.000 claims description 2
- 238000012546 transfer Methods 0.000 abstract description 8
- 238000009825 accumulation Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000000969 carrier Substances 0.000 abstract description 2
- 238000000151 deposition Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 9
- 150000002431 hydrogen Chemical class 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910002335 LaNi5 Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- -1 hydrogen Compound Chemical class 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012255 powdered metal Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C11/00—Use of gas-solvents or gas-sorbents in vessels
- F17C11/005—Use of gas-solvents or gas-sorbents in vessels for hydrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
-
- 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 provides a kind of metal hydride hydrogen storage unit and its method for storing metal hydride, hydrogen-storing device includes tank body and valve, and tank body is provided with the hydride hydrogen-storing subinterval that the filter laterally set and the porous airway tube communicated with the valve are formed.The present invention provides the good structure of a kind of efficiency of transmission height, heat conduction efficiency simple metal hydride hydrogen storage unit, thin footpath filter is the main carriers for being on the one hand used for depositing hydrogen storing alloy powder, on the other hand, alloyed powder is fixed on less interior volume by the hole of thin footpath filter, avoid the accumulation of alloyed powder so that the contact area of hydrogen and alloyed powder increases；Hydrogen enters in the hole of thin footpath filter in the circulation of tank interior via the aperture above airway tube, improves the mass-transfer efficiency of hydrogen.
Description
Technical field
The present invention relates to a kind of hydrogen-storing device, and in particular to a kind of hydride hydrogen-storing dress for improving hydrogen transmission rate
The method for putting and its storing metal hydride.
Background technology
With increasingly deficient and ecological environment the continuous deterioration of the fossil fuels such as oil and coal, new environmental protection is developed
The type energy has been extremely urgent.As fuel, the high quality calorific value of hydrogen (1.25 × 106kJ/kg of its calorific value, is the 3 of gasoline
Again, 4.5 times of coke), it is one of preferable high energy clean fuel.Hydrogen Energy as one of new energy, because its have abundance,
The renewable, thermal efficiency is high and the advantages that combustion cleaning, in the energetic domains in future, in occupation of consequence, has been subjected to
The common concern of countries in the world researcher.
The development and utilization of Hydrogen Energy is related to the preparation of hydrogen, storage, transports and apply four big key technologies.The storage of hydrogen
It is the problem and key technology of application.At present, solid metal hydride hydrogen storage technology is widely studied, and metal hydride has body
The remarkable advantages such as product is small, hydrogen-storage density is big, security is good, energy consumption is low, are a kind of preferable hydrogen storage materials.Hydride hydrogen-storing
Technology, it is under certain temperature and pressure, metal reacts with hydrogen, can absorb hydrogen and generate metal hydride, so as to which hydrogen be stored up
Deposit and fix.The reaction has good invertibity, and reversible reaction can occur for the appropriate temperature and reduction pressure of raising, and now release
Hydrogen.
Metal hydride is positioned in hydrogen container, it is possible to achieve the solid-state storage of hydrogen.Hydride hydrogen-storing cylinder mesh
It is preceding that metal hydride is in suction hydrogen repeatedly and puts volumetric expansion occurs in hydrogen cyclic process there is also some problems, and by
It can be flowed during hydrogen is put in suction in powdered metal hydride, or even accumulation so that inside produces very big stress,
The strain cracking of hydrogen container can be caused；Simultaneously as metal hydride powder easily flows, it can fill in and accumulate at air inlet/outlet position, resistance
Hinder the entrance and output of hydrogen.The suction of metal hydride puts hydrogen process along with very big heat exchange, and when inhaling hydrogen, temperature is anxious
Play rise, the sharp temperature drop when putting hydrogen, but the heat conductivility of metal hydride in itself is very poor, causes to inhale hydrogen discharging rate
Slowly.
The content of the invention
The present invention is in view of the above-mentioned problems, provide the good structure of a kind of efficiency of transmission height, heat conduction efficiency simple metallic hydrogen
Compound hydrogen-storing device.
In order to achieve the above object, the invention provides using following technical proposals：
A kind of metal hydride hydrogen storage unit, it includes tank body and valve, tank body be provided with the filter that laterally sets and with institute
State the hydride hydrogen-storing subinterval that the porous airway tube that valve communicates is formed.
A kind of first preferred scheme of metal hydride hydrogen storage unit, screen pack is provided between valve and porous airway tube；
The layering of tank body vertical direction is provided with filter；The number of the porous airway tube is at least 1, its length at least with the tank body height
It is equal；Distance between the filter is 45~50mm.
A kind of second preferred scheme of metal hydride hydrogen storage unit, the aperture of porous airway tube is 1~1.5mm；Filter
Aperture be 300~400 mesh, thickness is 2~2.5mm；The web material of the filter is prepared directly through being 0.5~0.8mm.
A kind of 3rd preferred scheme of metal hydride hydrogen storage unit, the aperture of porous airway tube is 1mm；The aperture of filter
For 400 mesh, thickness 2mm；The a diameter of 0.5mm of web material.
A kind of 4th preferred scheme of metal hydride hydrogen storage unit, tank body are made up of spherical crown and cylinder, cylinder
Diameter and height are than being 1:2~2:3.
Hydrogen storage conjunction is distributed with a kind of 6th preferred scheme of metal hydride hydrogen storage unit, hydride hydrogen-storing subinterval
Bronze, the thickness of hydrogen storing alloy powder are less than the 3/4 of adjacent filter distance；The integral thickness of packing area is less than the tank body volume
4/5.
A kind of 7th preferred scheme of metal hydride hydrogen storage unit, porous airway tube by mass percentage following groups
It is prepared by part：C 0.22-0.30%, Mn≤0.8%, Si≤0.6%, Ni 0.40-0.70%, Cr 13-15%, Ti≤
0.006%, Mo 0.4-0.6%, B≤0.003%, P≤0.03%, S≤0.036%, impurity element≤0.30%, surplus are
Iron.
A kind of 8th preferred scheme of metal hydride hydrogen storage unit, valve by mass percentage, by following component systems
It is standby to form：C≤0.08%, Si≤1.00%, Mn≤2.00%, P≤0.035%, S≤0.03%, Ni:10.0~14.0%,
Cr:16.0~18.5%, Mo:2.0~3.0%, surplus is iron.
A kind of 9th preferred scheme of metal hydride hydrogen storage unit, tank body by mass percentage, by following component systems
It is standby to form：C≤0.03%, Si≤1.00%, Mn≤2.00%, P≤0.045%, S≤0.03%, Ni:10.0~14.0%,
Cr:16.0~18%, Mo:2.0~3.0%, surplus is iron, and tank body uses exotic material, and it is very high strong to ensure that tank body has
Degree and good thermal conduction effect
A kind of tenth preferred scheme of metal hydride hydrogen storage unit, hydrogen storing alloy powder are magnesium microalloying powder, rare earth
One kind in base hydrogen storage alloy powder, titanium base hydrogen storage alloy powder.
A kind of method of metal hydride hydrogen storage unit storage hydride, it is characterised in that methods described is as follows：
(1) metal hydride is loaded into the hydrogen-storing device, is filled with the argon of 4MPa pressure to the hydrogen-storing device at room temperature
Gas, and keep 30 minutes pressure not decline；
(2) by the hydrogen-storing device with 5 DEG C/s from room temperature to 60 DEG C, be incubated 30 minutes；Vacuumize, keep at 60 DEG C
60 minutes；Hydrogen is passed through at 60 DEG C makes pressure reach 4MPa, is kept for 2.5 hours；The hydrogen is then discharged at 60 DEG C to pressure
Power is 0.157MPa, and completion once activates.
(3) repeating said steps (1) and (2) five times；
(4) carry out suction and put hydrogen experiment, record pressure count evidence.
Compared with immediate prior art, technical scheme provided by the invention has following excellent effect：
1st, thin footpath filter provides parking space for hydrogen storing alloy powder in technical scheme provided by the invention, and thin footpath filter will
Alloyed powder is fixed on less interior volume, avoids the accumulation of alloyed powder, slow down pressure of the alloyed powder expansion to tank body.
The 2nd, the structure of thin footpath filter is provided in the present invention, be to be made up of many apertures for the aperture of 300~400 mesh, aperture
38~45 μm can be reached, the thickness of thin footpath filter is 2~2.5mm, can flow and provide well between alloyed powder for hydrogen
Passage, improve hydrogen mass-transfer efficiency.
3rd, many small holes are distributed with above the porous airway tube in the present invention, are on the one hand advantageous to during hydrogen is inhaled
Hydrogen contacts into tank interior with hydrogen storing alloy powder；On the other hand, bottom alloyed powder can be caused to release during hydrogen is put
Hydrogen can also quickly discharge, Hydrogen Energy power is put in the suction for improving hydrogen storing alloy powder.
Brief description of the drawings
Fig. 1 is hydrogen-storing device structural representation of the present invention；
Fig. 2 is the schematic diagram of the porous airway tube of the present invention；
Fig. 3 is the top view of filter of the present invention；
Wherein, 1, tank body port；2nd, valve；3rd, screen pack；4th, tank body；5th, filter；6th, hydrogen storing alloy powder；7th, porous air guide
Pipe；8th, pressure gauge.
Embodiment
Below in conjunction with the accompanying drawings 1~3 and specific embodiment be described in further detail, technical scheme is carried out clear
Chu, it is fully described by, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
A kind of hydride hydrogen-storing cylinder device as shown in Figure 1 to Figure 3, the tank body that the device includes above tank body (4) lead to
Gas valve (2) at mouthful (1), tank mouth, screen pack (3), thin footpath (400 mesh) filter (5) for preventing powder outflow tank body are adjacent
Filter is packing area, and hydrogen storing alloy powder (6) is contained in inside, and porous airway tube (7) is located at tank interior, airway tube at least one
Root, it is metal straight pipe, aperture is distributed with straight tube.Thin footpath filter (5) is made up of aperture for the aperture of 400 mesh, filter
For net through being 1~2mm, the distance between filter is 45~50mm；The web material of filter is prepared directly through being 0.5~0.8mm, preferably 0.5mm；
Internal between adjacent filter that hydrogen storing alloy powder (6) is housed, the thickness of hydrogen storing alloy powder is less than the 3/4 of adjacent filter distance,
The integral thickness of packing area is less than the 4/5 of the tank body volume, so as to improve the contact area of hydrogen and hydrogen storing alloy powder, has
Beneficial to the transmission of hydrogen.Tank body is made up of spherical crown and cylinder, and the diameter and height of cylinder are than being 1:2~2:3.
Further, since the presence of the airway tube (7) of aperture is dispersed with, a diameter of tank body master of porous airway tube (7)
The 1/10 of body diameter, hydrogen is enabled to be quickly completed in into and out process, hydrogen is put in the suction for improving hydrogen storing alloy powder
Efficiency.The presence of filter webs (3) so that during vacuumizing and suction puts hydrogen, hydrogen storing alloy powder will not enter with hydrogen gas stream
Enter the inside of gas inlet and outlet.
Thin footpath filter (5) is the main carriers for depositing hydrogen storing alloy powder, can be flowed for hydrogen between alloyed powder provide it is good
Good passage, improves hydrogen mass-transfer efficiency.Meanwhile alloyed powder is fixed in less space by the hole of thin footpath filter (5)
Portion, avoid the accumulation of alloyed powder so that the contact area of hydrogen and alloyed powder increases, and improves the conversion efficiency of hydrogen.
In order to further improve circulation of the hydrogen in tank interior, using a kind of pipeline, material is fine copper, pipeline
Small hole is provided with, i.e., porous airway tube；The hydrogen of high pressure conditions enters tank interior, enters via the aperture above airway tube
In the hole of thin footpath filter, the mass-transfer efficiency of hydrogen is further improved.
Furthermore hydrogen storing alloy powder is an exothermic process during hydrogen is inhaled, and can release very big heat.Due to thin footpath every
Net and copper pipe have good heat transfer performance, and thin footpath filter (5) is close to tank body (4), and this allows for inhaling the heat that hydrogen is released
Amount can be quickly be transmitted to the external world.It is an endothermic process to put hydrogen process, during hydrogen is put, outside heat via thin footpath every
Net (5) is delivered to hydrogen storing alloy powder (6) well, promotes to put hydrogen process and quickly occurs.
In general, hydrogen can not only be greatly improved as the reaction bed of hydrogen storing alloy powder by the use of thin footpath filter (5)
The mass-transfer efficiency of gas, but also the heat transfer put to suction during hydrogen plays a role.
It is the use process of hydrogen-storing device below, with LaNi5Exemplified by material, hydride hydrogen-storing cylinder body is first turned on,
The thick thin footpath filters of 2mm are placed on inside hydrogen container, by the porous airway tube (7) in the center hole and Fig. 2 on thin footpath filter
Alignment.Hydrogen storing alloy powder (6) is encased in the internal packing area of tank body (4) so that hydrogen storing alloy powder is uniformly distributed, and has been filled
Bi Hou.At room temperature toward the argon gas (purity 99.99%) that 4Mpa pressure is filled with inside hydrogen container, and kept for 30 minutes, led to
Whether the pressure crossed in digital display pressure gauge (8) observation hydrogen container declines, and judges whether the sealing of hydrogen container is good with this.If
It is the registration decline of digital display pressure gauge (8), then poor sealing, continues to tighten bolt, continues test sealing.If registration is kept
Constant, then sealing is good.
Next it is exactly that hydrogen storing alloy powder is activated, temperature control display instrument is switched opened first, by hydrogen container
Temperature be raised to 60 DEG C, and carry out insulation 30 minutes, set programming rate as 5 DEG C/s.Secondly under the conditions of 60 DEG C, via tank body
Port (1) vacuumizes to tank body (4), is kept for 60 minutes.Then it is filled with hydrogen via tank body port (1) under the conditions of 60 DEG C
Gas so that the Hydrogen Vapor Pressure in tank reaches 4MPa, is kept for 2.5 hours；Finally carried out under the conditions of 60 DEG C via tank body port (1)
Hydrogen is put, is put to Hydrogen Vapor Pressure in 0.157MPa or so, above step is completed to activate for the first time；Next according to as above step again
Activated, activated 5 times repeatedly, you can complete the activation of hydrogen-storing device.Hydrogen-storing device after activation can be utilized for hydrogen
Quick storage.
It is finally to be tested using activated hydride hydrogen-storing alloyed powder.By controlling tank body port (1)
The valve (2) at place makes hydrogen enter in hydrogen container, and hydrogen enters each small hole of thin footpath filter by porous airway tube (7)
In gap.Hydrogen storing alloy powder can quickly inhale hydrogen and form metal hydride, volumetric expansion, can effectively utilize remaining space, keep away
Exempt from the breakdown caused by volumetric expansion.Caused heat can cause the temperature of tank interior to raise during inhaling hydrogen.Hydrogen storage
Hydrogen Vapor Pressure registration inside tank reduces, and passes through digital display pressure gauge table (8) display and record data.Caused heat can pass through
Thin footpath filter, is quickly delivered to tank body, and heat exchange is carried out with the external world.
During hydrogen is put, the metal hydride of tank interior releases hydrogen, hole and storage of the hydrogen by thin footpath filter
Hydrogen alloyed powder, hydrogen is gathered into tank body port (1) place finally by porous airway tube (7), opening valve (2) hydrogen will arrange
Go out.Heat transfer process during hydrogen is put is that external heat passes to thin footpath filter metal by tank body (4), then by thin
Footpath filter metal passes to metal hydride, and putting hydrogen for metal hydride provides heat.
Filter is copper mesh；It is prepared by the following components of porous airway tube by mass percentage：C 0.22-0.30%, Mn≤
0.8%, Si≤0.6%, Ni 0.40-0.70%, Cr 13-15%, Ti≤0.006%, Mo 0.4-0.6%, B≤
0.003%, P≤0.03%, S≤0.036%, impurity element≤0.30%, surplus are iron.
Valve (2) by mass percentage, is prepared by following components：C≤0.08%, Si≤1.00%, Mn≤
2.00%, P≤0.035%, S≤0.03%, Ni:10.0~14.0%, Cr:16.0~18.5%, Mo：2.0~3.0%, it is remaining
Measure as iron.
Tank body (4) by mass percentage, is prepared by following components：C≤0.03%, Si≤1.00%, Mn≤
2.00%, P≤0.045%, S≤0.03%, Ni:10.0~14.0%, Cr:16.0~18%, Mo：2.0~3.0%, surplus
For iron.
Hydrogen storing alloy powder is one kind in magnesium microalloying powder, lanthanon hydrogen storage alloy powder, titanium base hydrogen storage alloy powder.
The above embodiments are merely illustrative of the technical solutions of the present invention rather than is limited, the common skill of art
Art personnel should be appreciated that can modify or equivalent substitution with reference to above-described embodiment to the embodiment of the present invention,
These are applying for pending claim protection model without departing from any modification of spirit and scope of the invention or equivalent substitution
Within enclosing.
Claims (10)
1. a kind of metal hydride hydrogen storage unit, it includes tank body and valve, it is characterised in that the tank body, which is provided with, laterally to be set
Filter and the hydride hydrogen-storing subinterval that forms of the porous airway tube that is communicated with the valve.
2. a kind of metal hydride hydrogen storage unit according to claim 1, it is characterised in that the valve and porous air guide
Screen pack is provided between pipe；The number of the porous airway tube is at least 1, and its length is at least highly equal with the tank body；Institute
It is 45~50mm to state the distance between filter.
A kind of 3. metal hydride hydrogen storage unit according to claim 1, it is characterised in that the hole of the porous airway tube
Footpath is 1~1.5mm；The mesh aperture of the filter is 300~400 mesh, and filter thickness is 2~2.5mm；Prepare the filter
A diameter of 0.5~the 0.8mm of web material.
A kind of 4. metal hydride hydrogen storage unit according to claim 3, it is characterised in that the hole of the porous airway tube
Footpath is 1mm；The aperture of the filter is 400 mesh, and filter thickness is 2mm；The a diameter of 0.5mm of web material.
5. a kind of metal hydride hydrogen storage unit according to claim 1, it is characterised in that the tank body is by spherical crown and circle
Cylinder forms, and the diameter and height of the cylinder are than being 1:2~2:3.
6. a kind of metal hydride hydrogen storage unit according to claim 1, it is characterised in that the porous airway tube presses matter
It is prepared by the following components for measuring percentages：C 0.22-0.30%, Mn≤0.8%, Si≤0.6%, Ni 0.40-0.70%, Cr
13-15%, Ti≤0.006%, Mo 0.4-0.6%, B≤0.003%, P≤0.03%, S≤0.036%, impurity element≤
0.30%, surplus is iron.
7. a kind of metal hydride hydrogen storage unit according to claim 1, it is characterised in that the valve presses quality percentage
It is prepared by following components than meter：C≤0.08%, Si≤1.00%, Mn≤2.00%, P≤0.035%, S≤0.03%, Ni:
10.0~14.0%, Cr:16.0~18.5%, Mo:2.0~3.0%, surplus is iron.
8. a kind of metal hydride hydrogen storage unit according to claim 1, it is characterised in that the tank body presses quality percentage
It is prepared by following components than meter：C≤0.03%, Si≤1.00%, Mn≤2.00%, P≤0.045%, S≤0.03%, Ni:
10.0~14.0%, Cr:16.0~18%, Mo:2.0~3.0%, surplus is iron.
9. a kind of metal hydride hydrogen storage unit according to claim 1, it is characterised in that the metal hydride is magnesium
One kind in base hydrogen storage alloy powder, lanthanon hydrogen storage alloy powder or titanium base hydrogen storage alloy powder.
10. a kind of method of the metal hydride hydrogen storage unit storage metal hydride of any one of claim 1~9, its feature
It is, methods described is as follows：
(1) metal hydride is loaded into the hydrogen-storing device, is filled with the argon gas of 4MPa pressure to the hydrogen-storing device at room temperature, and
30 minutes pressure is kept not decline；
(2) by the hydrogen-storing device with 5 DEG C/s from room temperature to 60 DEG C, be incubated 30 minutes；Vacuumized at 60 DEG C, kept for 60 points
Clock；Hydrogen is passed through at 60 DEG C makes pressure reach 4MPa, is kept for 2.5 hours；The hydrogen to pressure is then discharged at 60 DEG C is
0.157MPa, completion once activate；
(3) repeating said steps (1) and (2) five times；
(4) carry out suction and put hydrogen experiment, record pressure count evidence.
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