JP3640476B2 - Reaction vessel for solid gas reaction powder - Google Patents

Description

[0001]
【Technical field】
The present invention relates to a reaction vessel for a solid gas reaction powder such as a hydrogen storage alloy.
[0002]
[Prior art]
In order to reduce the size of the hydrogen storage alloy reaction vessel and efficiently store and release hydrogen, it is necessary to efficiently remove the heat generated during hydrogen storage to the outside and supply the reaction heat during hydrogen release from the outside efficiently. Don't be.
In addition, since the hydrogen storage alloy expands when hydrogen is stored and contracts when hydrogen is released, the container must withstand the stress caused by the expansion and contraction of the hydrogen storage alloy.
[0003]
Therefore, for example, as shown in FIG. 11, the reaction vessel 9 of the hydrogen storage alloy is a cylindrical vessel 90, in which a large number of flexible heat medium tubes 91 are arranged to promote heat exchange and hydrogen permeation. A gas permeation tube 92 made of a filter is arranged to introduce or lead out hydrogen gas. In the figure, reference numeral 911 denotes a heat transfer fin.
[0004]
Also, during the initial activation of the hydrogen storage alloy, that is, in the process of making the hydrogen storage alloy capable of storing hydrogen by repeated heating and degassing and pressure storage, the hydrogen storage alloy is generally pulverized. It must also cope with the problems of consolidation of hydrogen storage alloys. That is, if the hydrogen storage alloy is partially consolidated, the stress concentrates on a part of the hydrogen storage alloy and causes a problem such as blocking the flow of hydrogen gas. This must be prevented or dealt with.
[0005]
Japanese Patent Application Laid-Open No. 7-286794 proposes a method of providing a heat-insulating buffer part at the lower part of the container.
Japanese Patent Laid-Open No. 7-269995 discloses that a plurality of internal division containers filled with a hydrogen storage alloy and receiving the expansion force of the hydrogen storage alloy are provided in the container, and a reaction is caused by the internal division container and the container constituting the outer shell. A method for constructing the container has been proposed. The expansion force of the hydrogen storage alloy is borne by the plurality of inner divided containers, and the reaction gas pressure is received by the outer shell container.
[0006]
[Problems to be solved]
However, the conventional hydrogen storage alloy reaction vessel has the following problems. The reaction container 9 shown in FIG. 11 has a problem that when the hydrogen storage alloy is activated, partial consolidation of the hydrogen storage alloy occurs below the container 90, and a closed region that hinders the flow of hydrogen is likely to occur. This hinders the diffusion of hydrogen gas, concentrates the stress due to the volume expansion of the hydrogen storage alloy, and reduces the heat exchange capacity of the reaction heat.
[0007]
In addition, a method of providing a heat-insulating cushioning material (Japanese Patent Laid-Open No. 7-286794) and a method of providing a plurality of internal division containers inside a container (Japanese Patent Laid-Open No. 7-269795) are useless that does not participate in the reaction. There is a problem that the space increases and the container becomes larger.
The present invention has been made in view of such conventional problems, and is a small and high-performance apparatus capable of suppressing the concentration of stress associated with the expansion of the solid-gas reaction powder and efficiently performing the progress and heat exchange of the reaction. It is intended to provide a performance reaction vessel.
[0008]
[Means for solving problems]
The present invention is a reaction vessel for adsorbing and desorbing a reaction gas from a solid-gas reaction powder,
A container that contains solid-gas reaction powder and forms an outer shell; a partition that divides the container into a plurality of compartments in the vertical direction; and that allows the reaction gas to pass through the solid-gas reaction powder; A heat transfer tube that exchanges heat with the above solid-gas reaction powder and a heat transfer fin that is attached to this heat transfer tube and promotes heat transfer between the solid-gas reaction powder and the heat medium,
Introducing a reactive gas within the outside of the container, or a gas pipe you discharge the reaction gases out of the inner, the reaction gas is transmitted through the connection has been that one or more gas permeable and the gas tubes in the container A tube,
The heat transfer tube is provided in a solid-gas reaction powder reaction vessel, which is disposed so as to be in contact with the solid-gas reaction powder in each compartment divided by the partition shelf.
[0009]
The reaction container according to the present invention is divided into a plurality of compartments in which the inside of the container is vertically arranged by a partition shelf.
By dividing the inside of the container in the vertical direction, solid-gas reaction powders such as hydrogen storage alloys are not evenly distributed and are evenly dispersed. For this reason, for example, when the hydrogen storage alloy is pulverized by initial activation, it is difficult to cause a problem that the powder is partially consolidated. Therefore, the stress of the solid-gas reaction powder does not concentrate on a part, and the reaction gas released or occluded from the solid-gas reaction powder diffuses smoothly.
[0010]
Moreover, since the partition shelf permeates the reaction gas, the reaction gas is filled in the container evenly.
The expansion force of the solid-gas reaction powder in each compartment is absorbed in each compartment, and the stress is dispersed throughout.
Since each compartment is only divided by a partition shelf, not a closed container etc., no wasteful space is created between the compartments, and the solid-gas reaction powder can be accommodated in the container without waste. Therefore, the container can be miniaturized.
[0011]
Further, the reaction gas injected or extracted into the container is performed through the gas permeable tube and the gas tube of the gas permeable filter.
On the other hand, the heat transfer tubes are arranged in contact with the solid-gas reaction powder in each section divided by the partition shelf, so that the heat exchange required for promoting the reaction can be efficiently performed, Promotes the reaction of the reaction powder.
[0012]
As a result, the reaction of the solid-gas reaction powder proceeds efficiently and uniformly in the container, and no stress concentration occurs on the container. Therefore, the reaction container according to the present invention can be relatively small and light.
As described above, according to the present invention, there is provided a small and high-performance reaction vessel capable of suppressing the concentration of stress associated with expansion of the solid-gas reaction powder and efficiently performing the reaction progress and heat exchange. be able to.
[0013]
As described in claim 2, it is preferable that the shape of the partition shelf is such that the lateral end portion is curved upward and gradually approaches the vertical wall surface of the container (see FIG. 1, curved portion 151).
Thus, by making it a curved shape, a partition shelf becomes easy to bend in a curved part, and can absorb expansion force by bending in the direction in which solid-gas reaction powder expands.
And the reaction container of this invention is very suitable for the hydrogen occlusion and discharge | release reaction of a hydrogen storage alloy, as described in Claim 3.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1
This example is a reaction vessel in which hydrogen storage alloy (MH) as solid gas reaction powder absorbs and desorbs hydrogen gas as a reaction gas. As shown in FIGS. 1 and 2, the reaction vessel 1 contains a hydrogen storage alloy 81 and a container 11 that forms an outer shell, and the container 11 is divided into a plurality of compartments in the vertical direction and the hydrogen storage alloy 81 is divided into a plurality of compartments. A partition shelf 15 that can be placed and permeate hydrogen gas, a heat transfer tube 21 that circulates the heat medium and exchanges heat with the hydrogen storage alloy 81, a heat transfer tube 21 that is attached to the heat transfer tube 21, and the heat storage medium Heat transfer fins 25 that promote heat transfer between them, a gas pipe 31 (FIG. 2) that introduces or discharges reaction gas between the inside and outside of the container 11, and a gas that allows hydrogen in the container 11 to pass through the soot It has a gas permeable pipe 35 made of a permeable filter and connected to the gas pipe 31.
[0015]
The heat transfer tubes 21 are arranged so as to be in contact with the hydrogen storage alloy 81 in each section divided by the partition shelf 15.
Further, as shown in FIG. 1, the partition shelf 15 is formed so as to gradually approach the vertical wall surface 111 of the container 11 with its lateral end curved upward.
The following is a supplementary explanation for each.
[0016]
As shown in FIGS. 1 and 2, the reaction vessel 1 has a box-like shape with a square cross section that is nearly square and long in the depth direction. The container 11 is divided into six sections in the vertical direction by five partition shelves 15. Further, the heat transfer tubes 21 are arranged at equal intervals in the front-rear direction in each section, the right end portion of the heat transfer tube 21 in each section is connected to the end portion of the other section, and the heat transfer tubes 21 in the three sections below the left end portion. Are connected to the heat medium inlet 211 (FIG. 2), and the ends of the upper three heat transfer tubes 21 are connected to the heat medium outlet 212 (FIG. 2).
The gas permeation pipe 35 extends in the depth direction at the center and the center of the upper part, and each end is connected to the gas pipe 31.
[0017]
Each member 11, 21, 25, 31 constituting the reaction vessel 1 is made of an aluminum alloy except for the gas permeation pipe 35 and the partition shelf 15. And the container 11 and the heat exchanger tube 21 have an integral structure by aluminum extrusion molding.
The hydrogen storage alloy 81 is filled around the heat transfer tubes 21 and the heat transfer fins 25. The hydrogen storage alloy 81 is filled from filling ports (not shown) provided on the front and rear end faces or side faces of the container 11.
Further, the gas permeable tube 35 and the partition shelf 15 are formed of a stainless sintered body.
[0018]
The gas permeable filter constituting the gas permeable tube 35 is a 1 μm permeable filter, and the hydrogen permeable partition shelf 15 is a sheet having a gap diameter of 10 μm and a thickness of 0.4 to 0.5 mm. The permeation index was determined based on the particle size distribution after the activation treatment of the hydrogen storage alloy to be used. However, in the hydrogen storage alloy 81 used in the experiment described later, the permeation index is almost the same in the range of 1 to 30 μm. The result is obtained.
In this example, two gas permeation pipes 35 are used to suppress a decrease in the filling volume of the hydrogen storage alloy 81, but one or more gas permeation pipes 35 may be used.
[0019]
The heat transfer fins 25 are made by laminating aluminum sheets having a thickness of 0.25 mm in the longitudinal direction of the container, and are brazed to the heat transfer tubes 21.
The hydrogen storage alloy 81 is uniformly filled in each compartment, and the filling amount of the hydrogen storage alloy is based on the tap density generally employed in powder engineering.
The tap density of the hydrogen storage alloy changes before and after the activation of the hydrogen storage alloy, but the filling rate (filling density / true density) of the hydrogen storage alloy 81 accommodated in the container is the same as before the activation. It is preferable to select between the tap density and the tap density after activation.
[0020]
In the reaction vessel 1 of this example, even if the filling rate (filling density / true density) is increased to about 110% of the tap density of the activated hydrogen storage alloy, excessive stress is observed in the reaction vessel 1. In addition, good permeability was obtained for hydrogen gas inside the container. However, when the filling rate of the hydrogen storage alloy 81 is increased to the tap density before activation, the reaction vessel 1 of the present example was not damaged, but the hydrogen gas permeability inside was reduced. There was a trend.
Therefore, it seems that the filling rate (filling density / true density) of the hydrogen storage alloy is preferably set to be equal to or lower than the tap density before activation.
[0021]
The hydrogen storage alloy 81 accommodated in the reaction vessel 1 is first activated (hydrogenated). That is, heating deaeration and hydrogen pressurization are repeated so that the hydrogen storage alloy can store hydrogen gas. In this process, the hydrogen storage alloy is pulverized by the ingress of hydrogen gas. As described above, in a conventional reaction vessel in which the interior is not divided into compartments, the hydrogen storage alloy pulverized in this process is unevenly distributed below the vessel, and the hydrogen storage alloy is generated by the large expansion force generated at the initial stage of activation. Consolidation resulted in excessive stress concentration.
[0022]
However, in this example, since the internal space is divided into six sections by the partition shelf 15, the hydrogen storage alloys 81 are distributed without being gathered downward, and the consolidation of the hydrogen storage alloys is avoided. Then, the hydrogen gas is smoothly diffused.
Next, the results of stress generation and hydrogen gas inflow / outflow velocity in the reaction vessel 1 of this example after activating the hydrogen storage alloy are shown in comparison with a conventional reaction vessel.
In the case of the conventional reaction vessel, since concentration of stress is predicted, the reaction vessel used for comparison is a cylindrical vessel (Fig. 11) that is safe and has higher strength, and each reaction vessel The internal volumes of the containers 1 and 9 were almost the same.
[0023]
First, the measurement results of the stress generation status are shown.
For the measurement of the stress generation state, the entire amount of hydrogen was released from the hydrogen storage alloy, and then hydrogen gas was stored at a rate of about 250 liters / min, and the magnitude of strain on the surface of the container 11 at that time was measured.
FIG. 3 shows how the ratio R1 between the maximum stress applied to the container and the stress due to the gas pressure of the hydrogen gas changes as the hydrogen storage amount (H / M) increases with respect to the hydrogen storage alloy. is there.
[0024]
A ratio R1 of maximum stress to gas pressure stress of 1 indicates that no stress is generated in the container 11 due to expansion of the hydrogen storage alloy.
A curve 61 in FIG. 3 shows a case where the filling rate of the hydrogen storage alloy 81 is set to 50% using the reactor 1 of this example, and curves 951 and 952 show the hydrogen storage alloy in the reaction vessel 9 shown in FIG. The case where the filling rate is 40% and the case where the filling rate is 48% are shown.
[0025]
As can be seen from the figure, in the case of the reaction vessel 1 of this example (curve 61), the ratio R1 between the maximum stress and the gas pressure stress does not change greatly with the increase in the amount of stored hydrogen (H / M). Where the ratio R1 is around 1, but when the filling rate of the hydrogen storage alloy is set to 48% (curve 962) using the conventional apparatus (curve 962), the ratio R1 rises significantly and exceeds 8 times. (Note that the reason why the data collection is completed when H / M is 0.8 or less is because the container has approached the proof stress limit as shown in FIG. 4 described later).
Further, as shown by the curve 951, even when the filling rate of the hydrogen storage alloy is 20% lower than that of the container of this example to 40% in the conventional apparatus, the ratio R1 increases as the amount of stored hydrogen (H / M) increases. Rises about 3 times, more than twice that of the reaction vessel 1 of this example.
[0026]
On the other hand, FIG. 4 shows how the ratio R2 between the maximum stress applied to the container and the 0.2% proof stress of the container material (aluminum alloy) with respect to the increase in the amount of stored hydrogen (H / M) relative to the hydrogen storage alloy. It shows whether it has changed. A curve 62 in FIG. 4 shows the case where the filling rate of the hydrogen storage alloy 81 is set to 50% using the reactor 1 of this example, and curves 961 and 962 show the hydrogen storage alloy in the reaction vessel 9 shown in FIG. The case where the filling rate is 40% and the case where the filling rate is 48% are shown.
[0027]
As can be seen from the curve 62, in the case of the reaction vessel 1 of this example, the ratio R2 to 0.2% proof stress is only slightly increased in the region where the amount of occluded hydrogen (H / M) is large. This increase corresponds to the region where the equilibrium pressure of the hydrogen storage alloy increases, and is due to the increase in the internal hydrogen gas pressure.
On the other hand, as indicated by a curve 962, when the filling rate of the hydrogen storage alloy is set to 48%, which is almost the same as that of the container of the present example, using the conventional apparatus, the ratio R2 is significantly increased, and the H / M ratio is 0. A result exceeding 0.2% proof stress was obtained at 7 or more.
[0028]
Further, as indicated by a curve 961, even when the filling rate of the hydrogen storage alloy is 20% lower than that of the container of the present example to 40% in the conventional apparatus, the ratio R2 increases as the amount of stored hydrogen (H / M) increases. Will rise significantly.
The above results show that the reaction of the same amount of hydrogen storage alloy can be processed with a much smaller size by using the reaction vessel 1 of this example.
[0029]
Next, the evaluation results of the hydrogen permeation performance of the reaction vessels 1 and 9 are shown. The hydrogen permeation performance was evaluated based on the flow rate of hydrogen flowing into and out of the reaction vessel (the fin pitch of the heat transfer fins is the same at 2 mm for both vessels).
FIG. 5 shows the hydrogen flow rate during hydrogen storage (hydrogen flow rate liter / min per unit weight of the hydrogen storage alloy), and FIG. 6 shows the hydrogen flow rate during hydrogen release (hydrogen flow rate liter / min per unit weight of the hydrogen storage alloy). ).
The measurement at the time of hydrogen storage is that the initial hydrogen storage amount H / M is 0.3, the temperature of the heat medium flowing into the heat transfer tube 21 is constant at 35 ° C., and the hydrogen gas pressure is the equilibrium of the hydrogen storage alloy at 35 ° C. The constant value was 0.3 MPa higher than the pressure.
[0030]
A curve 97 in FIG. 5 shows the hydrogen flow rate per unit weight of the hydrogen storage alloy in the conventional reaction vessel 9, and a curve 63 shows the hydrogen flow rate in this example.
As can be seen from the figure, the reaction vessel 1 of this example exhibits extremely good hydrogen storage characteristics as compared with the conventional vessel. This is because the conventional apparatus has insufficient hydrogen diffusion inside the vessel, and the hydrogen storage alloy near the gas permeation tube 35 performs good hydrogen storage, but the hydrogen storage alloy far from the gas permeation tube 35 does not absorb hydrogen. This means that the gas does not reach and there is little occlusion. As a result, the inflowing hydrogen gas flow rate is greatly reduced.
[0031]
On the other hand, in this example, because the inside of the container is divided and the distribution of the hydrogen storage alloy is made uniform, the permeation diffusivity of hydrogen gas in the entire region is improved. Further, as described above, since the consolidation of the hydrogen storage alloy does not occur, the diffusion of hydrogen gas due to the consolidation does not occur.
Note that the difference in flow rate between the curves 63 and 97 decreases with time, because the amount of hydrogen that can be stored is the same.
[0032]
On the other hand, the measurement conditions at the time of hydrogen gas release shown in FIG. 6 are that the initial hydrogen storage amount (H / M) is set to 0.7, the temperature of the heat medium flowing into the heat transfer tube 21 is kept constant at 10 ° C., The gas was released into atmospheric pressure.
A curve 98 in FIG. 6 shows the hydrogen flow rate per unit weight of the hydrogen storage alloy in the conventional apparatus, and a curve 64 shows the hydrogen flow rate in this example.
[0033]
In the case of hydrogen release, immediately after the start, hydrogen gas existing inside the container is released corresponding to the pressure inside the container, so there is no significant difference between the curves 64 and 98. At the same time, hydrogen released from the hydrogen storage alloy is mainly used, and the difference in hydrogen permeability between the two devices gradually appears as the difference in the outflow gas flow rate.
The difference between the two is smaller than that during hydrogen storage because the hydrogen storage alloy shrinks when hydrogen is released, and hydrogen gas diffusion is relatively easy even in the case of conventional devices.
[0034]
As described above, according to the reaction vessel 1 of this example, the hydrogen gas permeability is good and the inflow / outflow rate of the hydrogen gas can be increased, so that the heat output obtained from the reaction vessel 1 is increased. be able to.
In addition, because the hydrogen permeability inside the container is good, the internal reaction proceeds almost uniformly and continuously, facilitating numerical analysis by modeling, for example, optimization of heat transfer tubes and heat transfer fins. Design becomes easy. This is because, if the hydrogen storage alloy is consolidated as in the conventional device, for example, if a blockage or the like is formed in the gas flow path, numerical analysis becomes difficult and the deviation from the model used increases. It is.
[0035]
Also, in the case of reaction vessel strength design, there is no concentration or uneven distribution of stress, making it possible to design with a focus on the strength against the internal gas pressure, making the design easy and setting the vessel strength low. It becomes possible to do. That is, when the stress concentration must be taken into account, it is difficult to predict the stress concentration, and the strength is set on the safe side based on experience and the like.
[0036]
Further, as shown in FIG. 1, the partition shelf 15 of the present example is provided with a curved portion 151 whose upper end is curved upward, and the bending portion 151 is bent to cause stress due to expansion of the hydrogen storage alloy. Can be shared. In addition, hydrogen gas permeation can be facilitated by increasing the hydrogen permeation area due to bending.
As described above, according to the reaction vessel 1 of the present example, the same performance can be obtained by reducing the size, and more excellent performance can be exhibited at the same size.
[0037]
Embodiment 2
As shown in FIG. 7, this example is another embodiment in which a gas permeable sheet 16 is arranged along the entire circumference of the inner wall of the container 11 in the first embodiment.
According to this example, the sheet 16 serves as a cushion, and the expansion force of the hydrogen storage alloy 81 applied to the container 11 can be reduced, and the sheet 16 holds the hydrogen storage alloy unlike the partition shelf 15. Since the function is not required, a material having a large gap diameter can be used, and the hydrogen gas can be easily circulated through the sheet 16, so that there is an effect of promoting the diffusion of the hydrogen gas.
Further, the sheet 16 has an effect as a heat insulating layer between the inside and outside of the container.
Others are the same as in the first embodiment.
[0038]
Embodiment 3
As shown in FIG. 8, this example is another embodiment in which the heat transfer fins 26 around the heat transfer tubes 21 are spiral in the first embodiment.
That is, the heat transfer fins 26 are formed in a spiral shape around the heat transfer tube 21 as shown in FIG. As a result, the hydrogen storage alloy can be moved by applying gravity or vibration in the longitudinal direction along the heat transfer fins 26, so that the hydrogen storage alloy can be easily filled.
[0039]
Since the heat transfer fin 26 has a smaller heat radiation area than the heat transfer fin 25 of the first embodiment, the heat transfer performance is inferior, but more hydrogen storage alloy 81 can be filled.
Others are the same as in the first embodiment.
[0040]
Embodiment 4
This example is another embodiment in which the size of the gas permeation pores in the partition 15 is changed for each place in the embodiment 1 to the embodiment 3.
That is, the diameter of the pores is made larger and coarser in the lower partition shelf 15, and the pore diameter is made smaller and denser in the upper partition shelf 15.
[0041]
As a result, the hydrogen permeability of the partition shelf 15 below the container 11 is improved, the difference in the recovery or permeation of hydrogen gas due to the difference in distance from the gas permeation pipe 35 is eliminated, and it is uniform regardless of the location in the container 11. The reaction of the hydrogen storage alloy can be promoted.
About others, it is the same as that of Embodiment 1-Embodiment 3.
[0042]
Embodiment 5
In this example, as shown in FIG. 10, in the first embodiment, the vertical width L1 of the uppermost section 41 in which the gas permeation pipe 35 exists is divided into the vertical width of the other sections. It is another example of embodiment made larger than L2.
According to this example, since the hydrogen storage alloy 81 in each section is likely to gather below the section due to its own weight, a hydrogen gas flow passage is formed above the section 41 (uppermost stage) where the gas permeation pipe 35 exists. The Therefore, since the hydrogen gas can be diffused throughout the container by the hydrogen gas flow passage in addition to the gas permeation pipe 35, the diffusibility of the entire hydrogen gas is improved.
Others are the same as in the first embodiment.
[0043]
【The invention's effect】
As described above, according to the present invention, it is possible to obtain a small and high-performance reaction vessel capable of suppressing the concentration of stress associated with expansion of the solid-gas reaction powder and efficiently carrying out the reaction and heat exchange. Can do.
[0044]
[Brief description of the drawings]
FIG. 1 is a front cross-sectional view of a hydrogen storage alloy reaction vessel according to Embodiment 1;
2 is a cross-sectional view taken along line AA in FIG.
FIG. 3 is a graph showing the relationship between the amount of stored hydrogen (H / M) in the reaction vessel of Embodiment 1 and the ratio R1 of the maximum stress applied to the vessel to the gas pressure in comparison with the conventional apparatus.
FIG. 4 shows the relationship between the amount of hydrogen occluded (H / M) in the reaction container of Example 1 and the ratio R2 of the maximum stress applied to the container to the 0.2% proof stress of the container in comparison with the conventional apparatus. Figure.
FIG. 5 is a view showing a change over time in the hydrogen storage flow rate per unit weight of the hydrogen storage alloy in the reaction vessel of Embodiment 1 in comparison with a conventional apparatus.
6 is a graph showing a change over time in the flow rate of released hydrogen per unit weight of the hydrogen storage alloy in the reaction vessel of Embodiment 1 in comparison with a conventional apparatus. FIG.
7 is a front cross-sectional view of a hydrogen storage alloy reaction vessel according to Embodiment 2. FIG.
8 is a front cross-sectional view of a hydrogen storage alloy reaction vessel according to Embodiment 3. FIG.
FIG. 9 is a partially enlarged view showing a state in which the heat transfer fin of Embodiment 3 is mounted on a heat transfer tube.
10 is a front cross-sectional view of a hydrogen storage alloy reaction vessel according to Embodiment 5. FIG.
FIG. 11 is a front sectional view of a conventional hydrogen storage alloy reaction vessel.
[Explanation of symbols]
1. . . Reaction vessel,
11. . . container,
15. . . Divider shelf,
21. . . Heat transfer tubes,
25, 26. . . Heat transfer fins,
35. . . Gas permeation pipe,
81. . . Hydrogen storage alloy (solid-gas reaction powder),

Claims (3)

A reaction vessel that absorbs and desorbs reaction gas from the solid-gas reaction powder,
A container that contains solid-gas reaction powder and forms an outer shell; a partition that divides the container into a plurality of compartments in the vertical direction and that allows the reaction gas to pass through the solid-gas reaction powder; A heat transfer tube that exchanges heat with the solid-gas reaction powder and heat transfer fins that are attached to the heat transfer tube and promote heat transfer between the solid-gas reaction powder and the heat medium,
Introducing a reactive gas within the outside of the container, or a gas pipe you discharge the reaction gases out of the inner, the reaction gas is transmitted through the connection has been that one or more gas permeable and the gas tubes in the container A tube,
The reaction tube for solid-gas reaction powder, wherein the heat transfer tube is disposed so as to be in contact with the solid-gas reaction powder in each compartment divided by the partition shelf.   2. The reaction container for solid gas reaction powder according to claim 1, wherein the partition shelf is formed so that a lateral end portion is curved upward and gradually approaches a vertical wall surface of the container.   3. The hydrogen storage alloy reaction vessel according to claim 1, wherein the solid-gas reaction powder is a hydrogen storage alloy and the reaction gas is hydrogen gas.

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