CN105289440B - The hydrogen storage reactor and system that a kind of fin couples with coil heat exchanger - Google Patents
The hydrogen storage reactor and system that a kind of fin couples with coil heat exchanger Download PDFInfo
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- CN105289440B CN105289440B CN201510681013.4A CN201510681013A CN105289440B CN 105289440 B CN105289440 B CN 105289440B CN 201510681013 A CN201510681013 A CN 201510681013A CN 105289440 B CN105289440 B CN 105289440B
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Abstract
The hydrogen storage reactor and system coupled the invention discloses a kind of fin with coil heat exchanger, belongs to chemical reactor design field.Reactor overall structure is cylindrical housings, and the fin after Geometrical optimization and coil heat exchanger are integrated to be coupling in housing, and the inlet and outlet pipeline of heat exchanging fluid and hydrogen is fixed in housing tip and bottom respectively；Heat exchanging fluid enters coil heat exchanger, the outflow of bottom center position from top center position, and hydrogen then enters from the multiple hole paths for being evenly distributed on top, reacted with metal hydride.The advantage of the invention is that simple to operate, compact-sized, hydrogen can rapidly diffuse into bed, heat and mass excellent effect, the larger hydrogen storage occasion of fuel factor suitable for hydrogenation/dehydrogenation course of reaction.
Description
Technical field
The invention belongs to chemical reactor design field, is related to a kind of hydrogen storage reactor, and in particular to a kind of fin
The hydrogen storage reactor and system coupled with coil heat exchanger.
Background technology
At present, the hydride hydrogen-storing reactor master that fuel factor is larger in hydrogenation/dehydrogenation course of reaction is directed to both at home and abroad
There are following several classification：
1st, heat-exchange tube externally-wound type hydrogen storage reactor --- heat-exchange tube is centered around the periphery of circular cylindrical reactor, changes
Hot fluid enters from reactor upper side, until lower end another side is flowed out, hydrogen passes through on housing axis center pipeline
Aperture enters hydride bed by filter screen, is progressively reacted with radial direction with bed, until the shell close to heat-exchange tube
Body edge.The reactor has the features such as simple in construction, heat transfer effect is preferable, and hydrogenation/dehydrogenation reaction rate is very fast, but due to
Hydrogen is longer by the time needed for the filter screen bed that therefrom heart is begun to diffuse at heat-exchange tube, and housing radial direction has one
Fixed internal temperature gradient, skewness, overall is inefficient.(International Journal of Hydrogen
Energy,2013,38(22):9570-9577)。
2nd, straight pipe type heat exchanger coupling hydrogen storage reactor --- metal hydride solid material is placed on circular cylindrical shell
In the reaction zone of body, housing top and bottom respectively fix filter screen, hydrogen by being diffused rapidly to after filter screen in hydride bed,
And react, the heat that hydrogenation/dehydrogenation process is produced or needed is handed over by being distributed in the straight pipe type heat of housing axis center position
The heat exchanging fluid changed in pipe is taken away or inputted.The reactor has the features such as simple and compact for structure, gas phase drag is smaller, but due to
The heat exchange area of straight pipe type heat exchanger tube is limited, and heat exchange efficiency is more general, is poorly suitable for the larger storage of fuel factor in course of reaction
Hydrogen occasion (Applied Energy, 2013,112:1181-1189).
3rd, the hydrogen storage reactor of the small tubing heat exchanger coupling of multi beam --- between the upper end of reactor shell and bottom
Passage of the tube bank of fixed multiple small diameters as heat exchanging fluid, hydrogen enter in reactor from the side of housing by filter screen
Metal hydride between the small tubular type heat-exchange tube of multi beam reacts.The reactor has heat transfer simple in construction and good
Mass transfer effect, but because heat exchanger is mostly the tube bank of small diameter, treating capacity is smaller, and hydrogen is diffused into reaction bed
The resistance in portion is larger, thus limits its scale application (Applied Thermal Engineering, 1998,18 (6):
457-480)。
4th, the hydrogen storage reactor of micropassage type heat exchanger coupling --- in order to increase heat exchange area, reach enhanced heat exchange effect
The purpose of fruit, by heat-exchange tube microchannel, i.e. the straight tube using internal diameter in below 1mm is used as heat transfer fluid channels.The reaction
Although device has the advantages of fast reaction speed, good effect of heat exchange, also compacter structure, due to microchannel processed complex, cost
It is higher, and heat exchanger thinner thickness, and thermal stress is produced during hydrogenation/dehydrogenation, fragile micropassage type heat exchanger
(International Journal of Hydrogen Energy,2013,38(35):15242-15253)。
5th, the hydrogen storage reactor of helix tube type micro channel heat exchanger coupling --- handed over to improve above-mentioned micropassage type heat
For parallel operation in hydrogenation/dehydrogenation course of reaction the shortcomings that easily rupturable damage, spirality is designed in tubular type microchannel by the reactor, keeps away
Exempt from heat transfer process because of infringement of the thermal stress to tubular type microchannel caused by expanding with heat and contract with cold.But equally add manufacturing process hardly possible
Degree and cost, and because heat exchanger caliber is smaller, heat exchanging fluid once have dirt easily cause clogging (China,
CN.201310189618.2)。
Although the 6th, U-tube formula, other class hydrogen storage reactors of arch heat-exchangers of the plate type coupling --- these reactors tool
There is the features such as easy to operate, compact-sized, reaction rate is very fast, but its heat-transfer effect is more general, and process is difficult, replaceability
It is poor, it can not also be applied in actual hydrogen storage industry at present.
As can be seen here, all there are some defects in above-mentioned existing all kinds of hydrogen storage reactors, exist in the application of actual industry
Limitation.
The content of the invention
The defects of in order to overcome above-mentioned prior art to exist, it is an object of the invention to provide a kind of fin and spiral coil
The hydrogen storage reactor and system of formula heat exchanger coupling, the hydrogen storage reactor is simple to operate, treating capacity is big, easy repair and replacement, makes
With long lifespan, heat and mass excellent effect.
The present invention is to be achieved through the following technical solutions：
The invention discloses the hydrogen storage reactor that a kind of fin couples with coil heat exchanger, including housing and set
The upper cover and low head in housing upper/lower terminal are put, the junction of upper cover, low head and housing is respectively equipped with top tube sheet
With bottom tube sheet, the cavity between upper cover and top tube sheet forms gas phase dashpot, the sky between low head and bottom tube sheet
Chamber forms heat exchanging fluid dashpot, and the cavity between top tube sheet and bottom tube sheet forms reaction bed area；In reaction bed area
Side wall on offer material import and export, gas phase entrance and the heat exchange communicated with reaction bed area are offered on upper cover roof
Fluid issuing, heat exchanging fluid entrance is opened up on the bottom wall of low head；It is provided with reaction bed area for by the stream that exchanges heat
The coil hot switching path of body, and some row's wings are arranged in juxtaposition in the outer surface of the coil hot switching path
Piece.
On top, the upper surface of tube sheet is provided with the filter screen of only hydrogen supply gas disengaging, and filter screen is made of stainless steel, and filter screen thickness is
0.5~1mm, aperture are 400~500 mesh.
The screw pitch of coil hot switching path and the ratio of screw diameter are 0.333, some row's fin intervals
It is evenly distributed on the outer surface of coil hot switching path.
Upper cover side wall offers gas phase dashpot exhaust outlet.
Densely covered some gas phase ducts on the tube sheet of top, gas phase duct is in the form of coaxial annular around top tube sheet axis center point
Cloth, aperture are 3~5mm.
It is provided with the reaction bed area side wall with material import and export opposite side some for measuring Metal Hydride Beds
The temperature tube of layer reaction temperature.
Temperature tube is spaced 45mm between each other.
It is attached using flange between upper cover and low head and housing, and is sealed with flange seal ring.
Brace type bearing is additionally provided with low head bottom.
The invention also discloses the reactor assembly for the hydrogen storage media being made up of hydrogen storage reactor, including hydrogen storage reactor,
Hydrogen source gas cylinder and thermostatical oil bath, delivery pump, flow control are sequentially provided with the pipeline that thermostatical oil bath is connected with hydrogen storage reactor
Valve processed, flowmeter；Pressure-reducing valve, triple valve, pressure gauge and pressure are sequentially provided with the pipeline that hydrogen source gas cylinder is connected with hydrogen storage reactor
Force control valve；Vavuum pump is connected by pipeline with triple valve.
Compared with prior art, the present invention has technique effect beneficial below：
Because the fuel factor that hydrogenation/dehydrogenation is reacted during hydride hydrogen-storing is larger, therefore, inside enhanced reactor
Heat-transfer effect be more beneficial for promote hydrogenation/dehydrogenation reaction, so as to improve the overall hydrogen storage property of reactor.Therefore the present invention is public
The hydrogen storage reactor opened, it is provided with reaction bed area for the coil hot switching path by heat exchanging fluid, and
Some row's fins are arranged in juxtaposition in the outer surface of the coil hot switching path, utilize the secondary circulation characteristic of spiral coil
The larger heat transfer area with fin, the heat-transfer effect between enhanced heat exchange fluid and metal hydride, so as to promote entering for reaction
OK, and to the coil heat exchanger geometry containing fin optimize, by control heat exchanging fluid temperature and
Flow velocity is applied to different types of hydride hydrogen-storing process (different reaction heat effects) to adjust reactor.Meanwhile this
Invention is attached with quick detachable upper and lower end socket with housing, facilitates the maintenance and replacing of coil hot switching path.With
The storage of the couplings such as current existing heat exchanger external, straight pipe type, the small tubular type of multi beam, micropassage type, U-shaped tubing heat exchanger
Hydrogen reactor is compared, the present invention have simple to operate, treating capacity is big, easily change, service life is long, heat and mass excellent effect and
The features such as gas phase diffusion resistance is small, can meet the hydride hydrogen-storing technology that fuel factor is larger during hydrogenation/dehydrogenation should
With.
Further, filter is arranged at the upper surface of top tube sheet, there is two purposes：First, in order to avoid impurity enters
Enter in reaction bed with hydride in gas phase dashpot；Second, in order to avoid filter screen is in use because hydrogenation/dehydrogenation is anti-
Answer caused fuel factor and cause deformation or even damage, filter screen is arranged far to the top tube sheet upper surface location of conversion zone
Place, influence of the temperature change to filter screen in course of reaction is reduced as far as possible.Filter screen is stainless steel, and its aperture is in 400~500 mesh
In the range of, to prevent that metal hydride powder from entering end socket region and other impurities are mixed into hydride powder.
Further, after Geometrical optimization, the screw pitch of spiral coil and the ratio of screw diameter are
0.333, fin is distributed on spiral coil every 35mm gap uniformities.
Further, in view of the high risk feature such as inflammable and explosive of hydrogen, gas phase buffering is provided with upper cover side
Groove exhaust outlet, is connected with outdoor environment, in emergency circumstances using.
Further, it is provided for measuring the temperature tube of metal hydride bed reaction temperature on housing, it is anti-in order to monitor
The reaction temperature inside device bed is answered, respectively in the upper, middle and lower segment of reactor, temperature tube is uniformly distributed every 45mm, according to
The reaction temperature of monitoring, the reaction heat of hydrogenation/dehydrogenation process is estimated, according to the size of reaction heat, to initial import hydrogen pressure, heat exchange
Rate of flow of fluid and temperature are controlled regulation.
Brief description of the drawings
Fig. 1 is the hydrogen storage structure of reactor schematic diagram that fin of the present invention couples with coil heat exchanger；
Fig. 2 is end socket of the present invention and shell flange connection diagram；
Fig. 3 is top tube sheet aperture distribution schematic diagram of the present invention；
Fig. 4 seal washer schematic diagrames between inventive pipeline and tube sheet；
Fig. 5 is brace type bearing schematic diagram of the present invention；
Fig. 6 implements system flow block diagram for the present invention.
Wherein, 1 is housing；2 be upper cover；3 be gas phase entrance；4 be meteorological dashpot；5 be that heat exchanging fluid exports；6 are
Packing ring between tube sheet and pipeline；7 be filter screen；8 be gas phase dashpot exhaust outlet；9 be that flange connects；10 be top tube sheet；11
For material import and export；12 be coil hot switching path；13 be fin；14 be heat exchanging fluid dashpot；15 be brace type
Bearing；16 be heat exchanging fluid entrance；17 be low head；18 be bottom tube sheet；19 be temperature tube；20 be reaction bed area；21 are
Nut；22 be flange；23 be bolt；24 be flange seal ring；25 be gas phase duct；26 be hydrogen source gas cylinder；27 be vavuum pump；28
For pressure gauge；29 be flowmeter；30 be delivery pump；31 be thermostatical oil bath.
Embodiment
With reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and
It is not to limit.
Referring to Fig. 1, hydrogen storage reactor that fin disclosed by the invention couples with coil heat exchanger, including cylinder
The housing 1 of shape and the upper cover 2 and low head 17 for being arranged on the upper/lower terminal of housing 1, upper cover 2, low head 17 and housing 1
Junction is respectively equipped with top tube sheet 10 and bottom tube sheet 18, and the cavity between upper cover 2 and top tube sheet 10 forms gas phase and delayed
Jet-bedding 4, the cavity between low head 17 and bottom tube sheet 18 form heat exchanging fluid dashpot 14, top tube sheet 10 and bottom tube sheet
Cavity between 18 forms reaction bed area 20；Material import and export 11 is offered in the side wall in reaction bed area 20, in upper envelope
Gas phase entrance 3 and the heat exchanging fluid communicated with reaction bed area 20 outlet 5 are offered on first 2 roof, in the bottom wall of low head 17
On open up heat exchanging fluid entrance 16；It is provided with reaction bed area 20 for the coil heat exchange by heat exchanging fluid
Passage 12, and some row's fins 13 are arranged in juxtaposition in the outer surface of the coil hot switching path 12.Hydride solid phase is anti-
Thing is answered then to be filled between coil hot switching path 12 and housing 1, its hydrogenation/dehydrogenation course of reaction occurred with hydrogen
The heat of middle release/absorption can be taken away or be supplied by heat exchanging fluid.
It is connected and sealed, maintenance and dismounting during convenient use, is managed with flange 22 between upper and lower end socket and housing
Between plate and pipeline mechanical seal is carried out with O-ring 6 (as shown in Figure 4).On top, the upper surface of tube sheet 10 is provided with only hydrogen supply gas
The filter screen 7 of disengaging, filter screen 7 are located at top tube sheet upper surface, there is two purposes：First, in order to avoid impurity enters reaction bed area
Enter in 20 with hydride in gas phase dashpot 4；Second, produced in order to avoid filter screen 7 reacts because of hydrogenation/dehydrogenation in use
Raw fuel factor and cause deformation or even damage, filter screen 7 is arranged far from the top tube sheet upper surface location of conversion zone,
Influence of the temperature change to filter screen 7 in course of reaction is reduced as far as possible.Filter screen material is stainless steel, and its specific size is：Diameter
95mm, 0.5~1mm of thickness, aperture size is 400~500 mesh in net.
Heat exchanging fluid in the present invention is to pass through heat exchanging fluid dashpot 14 from the heat exchanging fluid entrance 16 at low head 17,
In the coil hot switching path 12 integrated then into fin and spiral coil, heat is carried out with metal hydride bed
Amount exchanges, finally from the outflow of heat exchanging fluid outlet 5 at upper cover.Gas phase is then at gas phase (hydrogen) entrance 3 of upper cover 2
Pass through the loose structure 25 of gas phase dashpot 4, filter screen 7 and top tube sheet 10 successively, be about 0.5 or so then into porosity
Porous metals hydride bed, and be diffused into inside bed, hydrogenation/dehydrogenation reaction occur with hydride.In view of hydrogen is easy
The high risk feature such as explosive is fired, the side of upper cover 2 is provided with gas phase dashpot exhaust outlet 8, is connected with outdoor environment, is supplied
In emergency circumstances use.The disengaging mode of hydrogen and heat exchanging fluid is arranged respectively to mode from top to bottom and from top to bottom,
Primarily to reduce the diffusional resistance of gas phase and the heat transfer effect of enhancing heat exchanging fluid.As for solid-phase reactant --- metallic hydrogen
Compound, it is filled or takes out by the material import and export 11 of housing side, loading is larger, between 1~5Kg, for side
Just the filling and taking-up of material, the inlet and outlet of material are designed as a diameter of 50mm big passage.
Certain resistance during penetrating into hydride bed region due to gas diffusion be present, and hydrogen and solid phase are anti-
It is reversible reaction to answer the reaction between thing, has certain reaction balance pressure.Therefore, in order to allow gas phase diffusion to penetrate into entirely
Bed, and fully reacted with solid-phase reactant, the pressure of gas phase porch should be higher than that the reaction balance pressure under certain temperature
Power, therefore its initial import hydrogen pressure is typically in the range of 0.3~5MPa.For similar to lanthanum nickel system hydride etc. can at normal temperatures with
The solid-phase reaction system of hydrogenation/dehydrogenation reaction occurs for hydrogen, and relatively low initial import hydrogen pressure (0.3~1MPa) may be selected, and can
Heat exchanging fluid is adopted water as, reaction is heated or taken away the heat of reaction；For need to be in height similar to magnesium-based hydride etc.
The solid-phase reaction system of hydrogenation/dehydrogenation reaction occurs under warm (more than 150 DEG C) with hydrogen, in view of it needs higher reaction balance
Pressure and reaction temperature, its initial import hydrogen pressure need to use higher hydrogen pressure (1~5MPa), and silicone oil, sky may be selected in heat exchanging fluid
The media such as gas carry out heat exchange to reaction bed.In order to monitor the reaction temperature inside reactor bed, respectively in reactor
Upper, middle and lower segment, temperature tube 19, a diameter of 3mm of temperature tube are uniformly distributed every 45mm, the depth of insertion hydride bed is
15mm.According to the reaction temperature of monitoring, the reaction heat of hydrogenation/dehydrogenation process is estimated, according to the size of reaction heat, to initial import
Hydrogen pressure, heat exchanging fluid flow velocity and temperature are controlled regulation.
In order to allow hydrogen quickly to diffuse and penetrate into conversion zone, some gas phase ducts 25 of being gathered on top tube sheet 10, and
Gas phase duct 25 is distributed with annular form around tube sheet axis center, as shown in Figure 3.Its aperture is 3~5mm, shares 73
Hole path, the diameter and thickness of tube sheet are respectively 95mm and 2~3mm.
Passage of the heat exchanger integrated using fin and spiral coil as heat exchanging fluid, spiral is designed to by passage
Shape, can increase the turbulent extent of heat exchanging fluid in heat exchange area and reinforced pipe, enhanced heat exchange fluid and metal hydride bed it
Between heat-transfer effect and improve metal hydride hydrogenation/dehydrogenation reaction rate.In addition, coil fluid passage can avoid
Metal hydride hydrogenation/thermal stress caused by dehydrogenation reaction and particle powder produce because dilation circulates during the course of the reaction
Extrusion stress etc. caused by the distortion of heat exchanging fluid pipeline even rupture.The function of fin can then ensure heat exchanger and reaction bed
Layer fully contact, make whole reaction bed can quickly with heat exchanging fluid carry out heat exchange, whole reaction bed Temperature Distribution compared with
Uniformly.
After optimization, its key dimension has the geometry of the described heat exchanger of coil containing fin：Heat is handed over
Exchanger section length 135mm；Screw pitch 15mm；Spiral number of turns 9 are enclosed；Screw diameter 45mm；The ratio between screw pitch and internal diameter are
0.333；Heat-exchange tube bore 15mm；Heat-exchange tube wall thickness 2.5mm；Fin internal diameter, external diameter and thickness are respectively 20mm, 35mm
And 1.5mm；Fin is distributed on spiral coil every 35mm gap uniformities.
Bottom tube sheet 18 in the present invention is not required to provide passage for gas phase, mainly provides closed buffering for heat exchanging fluid
Groove, the damaged possibility of heat exchanger pipeline is reduced, increase the reliability and service life of reactor.The diameter and thickness of tube sheet
It is consistent with top tube sheet, respectively 95mm and 2~3mm.
Referring to Fig. 2, connected between the end socket and housing in the present invention by flange 22, with bolt 23, nut 21 and flange
Sealing ring 24 is sealed, to facilitate the maintenance of reactor and change.Referring to Fig. 5, the present invention is additionally provided with the bottom of low head 17
Brace type bearing 15.
Below by specifically with Mg2Ni hydrogen bearing alloys for medium hydrogen storage reactor exemplified by coil containing fin
The hydrogen storage reactor of heat exchanger coupling illustrates.
Mg2The reaction of the hydrogenation/dehydrogenation of Ni hydrogen bearing alloys and hydrogen is shown below：
It was found from above formula, the hydrogen bearing alloy release or the heat needed in hydrogenation/dehydrogenation reaction reach 63.36kJ
mol-1, there is larger fuel factor, if heat and heat exchanging fluid can not be swapped in time, by the storage to hydrogen storage reactor
Hydrogen characteristic produces greatly adverse effect.Exemplified by inhaling hydrogen process, hydrogen abstraction reaction belongs to exothermic reaction, along with the progress of reaction
Substantial amounts of heat is produced, causes the temperature of reaction bed and reaction balance pressure in reactor to be gradually increasing, and the promotion reacted
Power mostlys come from the pressure difference between initial hydrogen pressure and platform hydrogen pressure, therefore once reacts platform hydrogen pressure and be higher than initial hydrogen pressure, inhales hydrogen
Reaction will pause.
Based on Mg2The reactor assemblies of Ni hydrogen storage medias as shown in fig. 6, its by fin and coil heat exchanger collection
Into the hydrogen storage reactor of coupling, hydrogen source gas cylinder 26, vavuum pump 27, pressure gauge 28, flowmeter 29, small-sized delivery pump 30, thermostatical oil
Bath 31, pressure-reducing valve V1, triple valve V2, pressure-control valve V3, flow control valve V4 and pipeline composition.By Mg2Ni hydrogen storage medias
After being loaded into reactor, gas cylinder is closed, valve V2 and V3 is opened, reactor assembly is carried out with vavuum pump to vacuumize 30min, is arranged
Foreign gas to the greatest extent in system closes valve V2, V3 and vavuum pump into external environment.Thermostatical oil bath is heated to a constant temperature
To spend (150~200 DEG C), the small-sized delivery pump for being about 120W by power circulates heat exchanging fluid in reactor assembly,
And flow is adjusted by valve V4.Gas cylinder and valve V2 are opened, adjusting hydrogen by pressure-reducing valve V1 enters the first of reactor assembly
Beginning hydrogen pressure (1~5MPa).Deng after the pressure stability in the system outside reactor (by observing pressure gauge), close valve V2 simultaneously
Valve V3 is opened, hydrogen is filled with the reactor of coil heat exchanger coupling, by being distributed in temperature tube 19
Thermocouple monitoring Mg2Ni hydrogen bearing alloys and the bed temperature in hydrogen course of reaction, until reaction is fully completed.
In summary, fin disclosed by the invention and the integrated hydrogen storage reactor coupled of coil heat exchanger, will
Traditional straight pipe type heat exchanger designs are into coil heat exchanger, after Geometrical optimization, the spiral shell of spiral coil
The ratio for revolving pitch and screw diameter is 0.333, and is arranged in juxtaposition two exclusive fins, its arrangement mode in heat-exchanger surface
For spiral form.The purpose of design of coil heat exchanger containing fin has two：First, using inside spiral coil
Secondary circulation, turbulent extent of the increase heat exchanging fluid when flowing through helical pipe, enhanced heat exchange fluid and Metal Hydride Beds
Heat-transfer effect between layer, the arrangement of outer fin then can further improve the diabatic process speed of heat exchanging fluid and hydride bed
Rate, reduce heat transmission resistance, so as to promote the progress that hydrogenation/dehydrogenation is reacted；Two are arranged to coil, and its resistance hydrogenation/
In dehydrogenation reaction process in the extrusion stress of hydride powder and heat transfer process because thermal stress caused by expanding with heat and contract with cold performance more
It is good, it is hardly damaged, service life is longer, reduces cost.
Claims (7)
1. the hydrogen storage reactor that a kind of fin couples with coil heat exchanger, it is characterised in that including housing（1）And set
Put in housing（1）The upper cover of upper/lower terminal（2）And low head（17）, upper cover（2）Side wall offers the exhaust of gas phase dashpot
Mouthful（8）, upper cover（2）, low head（17）With housing（1）Junction be respectively equipped with top tube sheet（10）With bottom tube sheet
（18）, upper cover（2）With top tube sheet（10）Between cavity form gas phase dashpot（4）, low head（17）With bottom tube sheet
（18）Between cavity form heat exchanging fluid dashpot（14）, top tube sheet（10）With bottom tube sheet（18）Between cavity form
Reaction bed area（20）；Top tube sheet（10）Upper some gas phase ducts of gathering（25）, gas phase duct（25）In the form of coaxial annular
It is distributed around top tube sheet axis center, aperture is 3 ~ 5 mm；
In reaction bed area（20）Side wall on offer material import and export（11）, in upper cover（2）Gas phase is offered on roof
Entrance（3）And with reaction bed area（20）The heat exchanging fluid outlet communicated（5）, in low head（17）Bottom wall on open up heat exchange stream
Body entrance（16）；
In reaction bed area（20）In be provided with for the coil hot switching path by heat exchanging fluid（12）, and at this
Coil hot switching path（12）Outer surface be arranged in juxtaposition some row's fins（13）；Coil hot switching path
（12）Screw pitch and screw diameter ratio be 0.333；Fin（13）Helical disk is distributed in every 35 mm gap uniformities
Guan Shang.
2. the hydrogen storage reactor that a kind of fin according to claim 1 couples with coil heat exchanger, its feature
It is, in top tube sheet（10）Upper surface be provided with only hydrogen supply gas disengaging filter screen（7）, filter screen（7）Thickness be 0.5 ~ 1 mm,
Aperture is 400 ~ 500 mesh.
3. the hydrogen storage reactor that a kind of fin according to claim 1 couples with coil heat exchanger, its feature
Be, with material import and export（11）The reaction bed area of opposite side（20）Side wall is provided with some for measuring metal hydride
The temperature tube of thing bed reaction temperature（19）.
4. the hydrogen storage reactor that a kind of fin according to claim 3 couples with coil heat exchanger, its feature
It is, temperature tube（19）Interval 45mm between each other.
5. the hydrogen storage reactor that a kind of fin according to claim 1 couples with coil heat exchanger, its feature
It is, upper cover（2）And low head（17）With housing（1）Between use flange（22）It is attached, and with flange seal ring
（24）Sealed.
6. the hydrogen storage reactor that a kind of fin according to claim 1 couples with coil heat exchanger, its feature
It is, in low head（17）Bottom is additionally provided with brace type bearing（15）.
7. the reactor assembly for the hydrogen storage media being made up of the hydrogen storage reactor described in any one in claim 1 ~ 6, it is special
Sign is, including hydrogen storage reactor, hydrogen source gas cylinder（26）With thermostatical oil bath（31）, thermostatical oil bath（31）With hydrogen storage reactor
Delivery pump is sequentially provided with connected pipeline（30）, flow control valve（V4）, flowmeter（29）；Hydrogen source gas cylinder（26）It is anti-with hydrogen storage
Answer and be sequentially provided with pressure-reducing valve on the connected pipeline of device（V1）, triple valve（V2）, pressure gauge（28）And pressure-control valve（V3）；Vacuum
Pump（27）Pass through pipeline and triple valve（V2）It is connected.
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| CN203053266U (en) * | 2013-02-26 | 2013-07-10 | 宁波富尔顿热能设备有限公司 | Heat exchanger |
| CN103240037B (en) * | 2013-05-22 | 2016-01-13 | 西北大学 | A kind of ellipse spiral tubular type microchannel gas-solid phase reaction device |
| CN203731899U (en) * | 2014-01-23 | 2014-07-23 | 洛阳中广石油化工机械设备有限公司 | Heat exchanger with spiral finned coil |
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2015
- 2015-10-19 CN CN201510681013.4A patent/CN105289440B/en active Active
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