JPH05231744A - Cooling device - Google Patents

Abstract

PURPOSE:To make constant the interior temperature by filling in a cold accumulator with a cold storage material one by another in the order of lower melting point and reversing a heating medium supply direction in a cold heat generation process and a regeneration process in terms of a cooling device which combines a heat exchanger which incorporates hydrogen occluded alloy having different hydrogen equilibrium pressure with a cold accumulator. CONSTITUTION:A cold accumulator 4is designed to connect directly cylinder-shaped cold storage vessels 101 to U-shaped pipes 102 for a specified number and classifies the air flow direction of cold heat generated from a lower temperature side heat exchanger 5 in three regions. A paraffin cold storage material of melting point 6 deg.C is poured into a cold storage material filling terminal 103 while a paraffin cold storage material of melting point 9 deg.C is poured into a cold storage filling terminal 104 and a paraffin cold storage material of melting point 12 deg.C is poured into a cold storage filling terminal 105 where each filling terminal is sealed and each of the filling terminals 103 to 105 is located in the three regions from the first to the third region. The supply direction of a heating medium (air) in the cold heat generation process is set from the first region side while it is set from the third region in regeneration time opposite to the cold heat generation process.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling device which is a combination of a heat exchanger and a regenerator having hydrogen storage alloys having different hydrogen equilibrium pressures.

[0002]

2. Description of the Related Art For example, in Japanese Patent Application No. Hei 2-131664, heat exchangers respectively containing two kinds of hydrogen storage alloys having different hydrogen equilibrium pressures are made to communicate with each other so that they are generated from a low temperature side heat exchanger in a cold heat generation process. A device for cooling the space to be cooled by the cold heat stored in the regenerator is proposed in the regeneration process in which cold heat is supplied to the space to be cooled through the regenerator for cooling, and hydrogen is returned to the low temperature side heat exchanger. ing.

[0003]

However, in the above-mentioned conventional apparatus, since the regenerator is filled with the regenerator material having a predetermined melting point, the temperature of the cold heat supplied to the cooled space during the cold heat generation process and the regeneration process is high. There is a difference. For example, when a regenerator made of a regenerator material having a melting point of 9 ° C. is used, cold heat that is several degrees lower than 9 ° C. is supplied to the cooled space during the cold heat generation process and cold heat that is several degrees higher than 9 ° C. during the regeneration process. Will be supplied to.

Therefore, it is difficult for the conventional apparatus to keep the internal temperature constant.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a cooling device for keeping the internal temperature of a cooled space constant.

[0006]

SUMMARY OF THE INVENTION According to the present invention, two heat exchanging low temperature side and high temperature side heat exchange vessels each containing a hydrogen storage alloy having different hydrogen equilibrium pressures are connected to each other, and the low temperature side heat exchange is performed. In the cold heat generation process in which hydrogen moves from the container to the high temperature side heat exchange container, the cold heat generated in the low temperature side heat exchange container is supplied by a heat medium in the order of the regenerator and the cooled room, and the high temperature side heat exchange container is also supplied. In the regeneration process of returning the hydrogen moved to the low temperature side heat exchange container to the low temperature side, the cold heat stored in the regenerator is supplied to the cooled warehouse by the heat medium for cooling, and the regenerator is With respect to the heat medium supply direction to the regenerator in the cold heat generation process, at least two or more regenerator materials having different melting points are sequentially filled from the low melting point, and the heat medium supply direction to the regenerator is set to the above-mentioned direction. Overheated cold , And in which it is reversed in the reproduction process.

[0007]

According to the present invention, the temperature of the cold heat supplied to the cold storage can be kept constant during the cold heat generation process and the regeneration process.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment in which the present invention is applied to a flower growing system will be described in detail below with reference to the drawings. The flower growing system here is the most suitable temperature for flowers,
In order to supply humidity, adjust the flowering time, and extend the life of the flower, a showcase that stores flowers is equipped with a cooling device that supplies cold by using air as a heat medium.

FIG. 1 is a schematic perspective view of the flower growing system, FIG. 2 is a schematic side sectional view of the flower growing system of FIG. 1, and 1 is a casing forming the outer shape of the flower growing system.
Is a showcase (capacity: about 1 m ³ ) that occupies the upper part of the housing 1 and stores flowers. 3 is a cooling device (80 cm × 100) that is located below the showcase 2 and supplies cold to the showcase 2.
cm × height 60 cm).

The cooling device 3 is located below the showcase 2 as shown in FIG. 2, and as will be described later, a regenerator 4 (75c, which is filled with 1 kg each of three types of paraffinic regenerator materials).
m × 35.8 cm × height 15.4 cm) and the hydrogen storage alloy A shown in [Chemical Formula 1] located below the regenerator 4

[0011]

[Chemical 1]

A low temperature side heat exchange container 5 filled with 12 kg,
The low temperature side heat exchange container 5 (79 cm x 30 cm x height 18.
5 cm) below and hydrogen storage alloy B having a higher hydrogen equilibrium pressure than hydrogen storage alloy A shown in [Chemical formula 2].

[0013]

[Chemical 2]

High temperature side heat exchange container 6 (7) filled with 12 kg of
9 cm × 30 cm × height 18.5 cm), a fan 7 provided near the low temperature side heat exchange container 5 for forming an air flow to be sent to the regenerator 4 and the showcase 2, and a high temperature side heat exchange container 5. Inside the high temperature side heat exchange container 6, there is provided a fan 8 for forming an air flow for discharging the heat generated in the high temperature side heat exchange container 6 to the outside of the device 3 when the low temperature side heat exchange container 5 generates cold heat. The heater (not shown) that is provided in the low temperature side heat exchange container 5 and generates heat during regeneration, the showcase 2, the regenerator 4, and the low temperature side heat exchange container 5 are switched to communicate with each other. It comprises dampers 10 to 14 for supplying cold heat, and a damper 15 for switching the communication state between the high temperature side heat exchange container 6 and the outside air to discharge hot heat to the outside of the device 3. The low temperature side heat exchange container 5 and the high temperature side heat exchange container 6 are connected by a hydrogen pipe described later so that hydrogen can move between them. The dampers 10 to 13 are rotatably supported by an AC motor (not shown).

Further, the showcase 2 is provided with a fan 16 for sucking the cold heat generated in the regenerator 4 and the low temperature side heat exchange container 5 and forming an air flow to be circulated in the showcase 2. ing. The fans 7, 8 and 16 have a cross flow fan (maximum suction flow rate without load: 10 m ³ /
min, maximum output 30 W) is used.

Next, the structure of the regenerator 4 will be described with reference to FIGS. 3 is an external view of the regenerator 4 seen from the surface shown in FIG. 2, and FIG. 4 is a side view of FIG.
As shown in the figure, in the regenerator 4, 84 cylindrical regenerator material containers 101 (diameter 1 cm, length 70 cm) are connected in series every 28 by a U-shaped tube 102 to generate from the low temperature side heat exchange container 5. It is divided into three regions with respect to the direction of the cold air flow. Then, a paraffinic regenerator material having a melting point of 6 ° C. is placed in the regenerator material filling end 103, a paraffinic regenerator material having a melting point of 9 ° C. is placed in the regenerator material filling end 104, and a paraffinic regenerator material having a melting point of 12 ° C. is placed in the regenerator material filling end 103. They are respectively poured into 105, and after filling the cold storage material, the filling ends 103 to 105 are sealed.

Therefore, as shown in FIG. 3, the regenerator 4 has a structure in which three types of regenerator materials having different melting points are sequentially filled in the direction of the flow of cold heat generated from the low temperature side heat exchange container 5. In the figure, the first region is filled with the cold storage material having a melting point of 6 ° C., the second region is filled with the cold storage material having a melting point of 9 ° C., and the third region is filled with the cold storage material having a melting point of 12 ° C. Has been done.

A large number of aluminum fins 106 are arranged side by side at a pitch of about 2 mm outside each cold storage material container 101.

Further, as shown in FIG. 5, each regenerator material container 101 has an aluminum fin 106 inside and an internal transfer made of aluminum for efficiently transmitting the cold heat in the regenerator material container 101 to the regenerator material 107. A promoter 108 is provided. Thereby, the cold heat from the low temperature side heat exchange container 5 is efficiently stored in the regenerator 4.

Next, the structures of the low temperature side heat exchange container 5 and the high temperature side heat exchange container 6 will be described with reference to FIGS. 6 to 9.

FIG. 6 is an external view of the low temperature side heat exchange container 5 and the high temperature side heat exchange container 6 as viewed from the surface shown in FIG.
7 is a side view of FIG. 6, FIG. 8 is a cross-sectional view of an essential part of the low temperature alloy filling container shown in FIG. 6, and FIG. 9 is a cross-sectional view of an essential part of the high temperature alloy filling container shown in FIG. Is.

As shown in FIGS. 6 and 7, the low temperature side heat exchange vessel 5 comprises 33 cylindrical low temperature side alloy filling vessels 201 (diameter 1.6 cm, length 70 cm) connected in parallel. Each low temperature side alloy filling container 201 is connected to the high temperature side heat exchange container 6 via a common hydrogen pipe 202 having a valve (not shown) in the middle, and at the same time sucks and exhausts hydrogen gas.

Further, each low temperature side alloy filling container 201 is filled with the above hydrogen storage alloy A, and a large number of aluminum fins 203 are mounted outside at a pitch of about 5 mm.

Similarly, the high temperature side heat exchange container 6 is also composed of 33 cylindrical high temperature side alloy filling containers 204 (diameter 1.6 cm, length 70 cm) connected in parallel. And
Each high temperature side alloy filling container 204 is connected to the low temperature side heat exchange container 5 via a common hydrogen pipe 202 having a valve in the middle.
At the same time, hydrogen gas is sucked and exhausted, the above-mentioned hydrogen storage alloy B is enclosed in each high temperature alloy filling container 204, and a large number of aluminum fins 205 are mounted outside at a pitch of about 5 mm.

As shown in FIG. 8, each low temperature side alloy filling container 201 is connected to a hydrogen pipe 202 at one end thereof, and each low temperature side alloy filling container 201 is connected to a hydrogen intake / exhaust hole 205 of the hydrogen pipe 202. A hydrogen filter 207 for circulating hydrogen gas is connected to a substantially central portion of the hydrogen storage alloy A. The hydrogen filter 207 is formed of a porous filter such as sintered metal or glass wool,
The hydrogen gas is evenly distributed from the beginning to the end of each low temperature alloy filling container 201. At the other end of each low temperature alloy filling container 201, an alloy filling pipe 2 for filling the hydrogen absorbing alloy A into each low temperature alloy filling container 201 is provided.
08 is connected to the alloy filling pipe 2 after filling the alloy.
The outer exposed end of 08 is sealed. As described above, the hydrogen pipe 202 and the alloy filling pipe 208 are connected to the low temperature side alloy filling containers 201, respectively.
Since it was performed at the opposite end of No. 1, each low temperature alloy filling container 2
The diameter of 01 can be reduced, and as a result, heat transfer efficiency and operability are improved.

Furthermore, inside the both ends of each low temperature side alloy filling container 201 where the aluminum fins 203 are not mounted, glass fiber heat insulating material 209 such as kao wool is provided so as to sandwich the hydrogen storage alloy A. This insulation 2
09 absorbs the volume change when the hydrogen storage alloy A absorbs and exhausts hydrogen, and prevents the reduction of the cold heat generation efficiency due to the heat influence in the portion where the aluminum fins 203 are not provided.

Next, each high temperature side alloy filling container 204 is connected to the hydrogen pipe 202 at one end thereof as shown in FIG.
A hydrogen filter 212 for allowing hydrogen gas to flow above the hydrogen storage alloy B of each high temperature alloy filling container 204 is connected to the hydrogen intake / exhaust hole 210 of 02. The hydrogen filter 212 is the same as the hydrogen filter 207. And each high temperature side alloy filling container 2
An alloy filling pipe 213 for filling the hydrogen storage alloy B is connected to the other end of 04, and the outer exposed end of the alloy filling pipe 213 is sealed after filling the alloy.

Further, below the high temperature alloy filling container 204, a heater 21 for heating the hydrogen storage alloy B is provided.
An insertion hole 215 for inserting 4 from the same side as the alloy filling tube 213 is provided. Therefore, this insertion hole 215
By providing the heating heater 21 even after each high temperature side alloy filling container 204 is filled with the hydrogen storage alloy B.
4 can be easily replaced and inspected. Further, in each high temperature side alloy filling container 204, a heater 214
Is located at the lower part in order to eliminate heating unevenness due to rise in heat. The heater 214 is made of a nichrome wire and heats the hydrogen storage alloy B of each high temperature alloy filling container 204 to 110 ° C. when the low temperature heat exchange container 5 is regenerated. Furthermore, for the same purpose as the low temperature side alloy filling container 201, the glass fiber insulating material 216 is sandwiched between both ends of the high temperature side alloy filling container 204 where the aluminum fins 205 are not mounted. Is provided.

As described above, each high temperature alloy filling container 20
Of the alloy filling pipe 213 to the No. 4 and the heater 2
Since 14 was inserted from the end opposite to the connection end of the hydrogen pipe 202, the diameter of each high temperature alloy filling container 204 can be reduced, and as a result, heat transfer efficiency and operability are improved. ..

Next, the cooling operation in the flower growing system having the above-mentioned configuration will be described with reference to FIGS. 10 to 12 separately for the cold heat generation mode and the regeneration mode of the low temperature side heat exchange container 5.

FIG. 10 is a system schematic diagram showing the operation in the cold heat generating process described later, FIG. 11 is a system schematic diagram showing the operation in the regenerating process described later, and FIG. 12 is a regenerator 4 in the cold heat generating process and the regenerating process described later. FIG. 5 is a temperature change diagram of supply air to the device. The solid line in FIG. 12 indicates the regenerator 4
Of the first, second, and third regions, the one-dot chain line indicates the temperature change of the supply air from the low temperature side heat exchange container 5 in the cold heat generation process described later, and the two-dot chain line indicates the latter. The temperature changes of the air supplied from the showcase 2 during the regeneration process are shown respectively. [Cold heat generation mode] In the initial state, the low temperature side heat exchange container 5
The hydrogen storage alloy A inside has a hydrogen equilibrium pressure at a high temperature side heat exchange container 6
It is higher than the hydrogen storage alloy B inside, and when the valve of the hydrogen pipe 202 is opened, hydrogen dissociates from the hydrogen storage alloy A and moves to the hydrogen storage alloy B. At this time, the low temperature side heat exchange container 5 becomes an endothermic reaction, and the high temperature side heat exchange container 6 becomes an exothermic reaction.

The valve of the hydrogen pipe 202 has a hydrogen flow rate of 15 l / in order to prevent noise from being generated when the valve is opened.
The valve opening is controlled so that it is below min (25 ° C, 1 atm, 1 kg of filled hydrogen storage alloy).

Further, as shown in FIG. 10, the damper 10,
11 and 14 are in the vertical position in which the showcase 2 and the regenerator 4 and the low temperature side heat exchange container 5 are in communication with each other, and the damper 12 has all the cold air generated from the low temperature side heat exchange container 5 in the regenerator 4. It is in a horizontal position where it is fed to. The damper 13 is located at an oblique position to supply cold air from the regenerator 4 into the showcase 2 through the fan 16, and the damper 15
Is in a horizontal position where the high temperature side heat exchange container 6 and the outside air are in communication with each other. The fans 7, 8 and 16 are all driven at an output of 30W.

At this time, the cold heat air of about 3 ° C. generated in the low temperature side heat exchange container 5 is first supplied to the regenerator 4. Then, in the regenerator 4, cold air of about 3 ° C. is supplied to the first region filled with the above-mentioned cold accumulating material having a melting point of 6 ° C. to store heat, and then cold air of about 5 ° C. after being absorbed by cold heat is generated. Melting point 9 above
The cold storage air having a temperature of ℃ is supplied to the second region to store the heat, and finally the cold air having a temperature of about 7 ° C. is supplied to the third region to be filled with the cold storage material having the melting point of 12 ° C. to store the heat. Then, the cold air of about 9 ° C. after the cold heat is absorbed by the regenerator 4 is supplied to the showcase 2 (see the alternate long and short dash line in FIG. 12) to keep the showcase 2 at about 15 ° C.

Further, the heat generated in the high temperature side heat exchange container 6 is sucked by the fan 8 and discharged to the outside of the apparatus 3 through the high temperature side exhaust hole 301, and the high temperature side heat exchange container 6 is maintained at about 30.degree. The arrow in FIG. 10 indicates the direction of the air flow at that time.

After performing the above-described cold heat generation process for 19 minutes, a preliminary operation process I for shifting to a regeneration mode described later is performed.

In the preliminary operation process I, the dampers 10 and 14 are rotated to close the low temperature side suction hole 302, and at the same time, the damper 15 is moved to the vertical position where the high temperature side heat exchange container 6 and the outside air are shut off. It is rotated to activate the heater 214. Then, the drive output of the fan 7 is reduced to 20 W and the fan 8 is stopped. The heater 2
During the start-up of 14, the applied voltage control is individually performed so that the outputs of the temperature sensors provided at the upper portion and the lower portion of the high temperature side heat exchange container 6 are 110 ° C. Further, the valve of the hydrogen pipe 202 is closed at the same time when the cold heat generation process is completed.

After closing the low temperature side suction hole 302 with the dampers 10 and 14, the damper 11 is closed with the low temperature side exhaust hole 303.
The dampers 12 and 13 are rotated to a vertical position while being rotated to a position where the air from the device is discharged to the outside of the device 3.

Therefore, the damper 10 is first rotated without rotating the dampers 10 and 11 simultaneously, and the low temperature side suction hole 302 is formed.
Since the damper 11 is rotated after closing the valve, the air that has undergone heat exchange in the low temperature side heat exchange container 5 based on the cooling air in the showcase 2 does not leak to the outside of the device 3 and the cooling efficiency of the system is improved. Leads to improvement of.

After performing the above preliminary operation process I for 3 minutes, the following reproduction mode is performed. [Regeneration Mode] After the completion of the preliminary operation process I, the high temperature side heat exchange container 6 is heated to 110 ° C. by the activation of the heater 214.
Since the hydrogen storage alloy B in the high temperature side heat exchange container 6 has a hydrogen equilibrium pressure higher than that of the hydrogen storage alloy A in the high temperature side heat exchange container 6, when the valve of the hydrogen pipe 202 is opened, hydrogen is absorbed. Hydrogen is dissociated from storage alloy B and hydrogen storage alloy A
Move to.

At this time, as shown in FIG. 11, the fan 16
The air inside the showcase 2 is supplied to the regenerator 4 from the opposite direction to the case of the cold heat generation process by suction of the cold air, and the cold air at about 9 ° C. cooled by the regenerator 4 is in the showcase 2 And the inside of the refrigerator is kept at about 15 ° C. as in the cold heat generation process. That is, in the regenerator 4, the air inside the storehouse at about 15 ° C. in the showcase 2 is first of all the third air in the regenerator 4.
The zone is fed and cooled, and then the cooled cold air of about 13 ° C. is fed to the second zone for further cooling, and finally about 11 ° C. of cold air is fed to the first zone. It is cooled down. Then, the cold air of about 9 ° C. after being supplied with the cold heat by the regenerator 4 is supplied to the showcase 2 (see the chain double-dashed line in FIG. 12) to keep the inside of the showcase 2 at about 15 ° C. The heat generated by the heat generated in the low temperature side heat exchange container 5 after the hydrogen is returned is released to the outside air through the low temperature side exhaust hole 303, and the temperature rise of the low temperature side heat exchange container 5 is maintained at about 33 ° C. The arrow in FIG. 11 indicates the direction of the air flow at that time.

Further, the valve of the hydrogen pipe 202 has a hydrogen flow rate of 15 l / min (25 ° C., 1 atm, per 1 kg of filled hydrogen storage alloy) in order to prevent noise from being generated by opening the valve, as in the cold heat generation process. The valve opening control is performed as follows.

After performing this regeneration process for 19 minutes, a preliminary operation process II for shifting to the cold heat generation mode is performed.

In the preliminary operation process II, first, the damper 10 is rotated to the closed position with respect to the outside of the apparatus 3 and the damper 14 is rotated to the vertical position, and at the same time, the damper 15 is in a state where the high temperature side heat exchange container 6 and the outside air are in communication with each other. Then, the heating heater 214 is shut off. Then, the fan 8 is driven at an output of 30 W, and the fan 7 is driven at an output of 20 W as in the reproducing process. Further, the valve of the hydrogen pipe 202 is closed at the same time when the regeneration process is completed.

After the low temperature side suction hole 302 is opened by the rotation of the dampers 10 and 14, the damper 11 is placed in the closed position with the outside of the apparatus 3 and the damper 12 is completely cooled by the low temperature side heat exchange container 5. The damper 13 is rotated to a horizontal position where the damper 13 is supplied to the regenerator 4 to an oblique position where cold air is supplied from the regenerator 4 into the showcase 2 through the fan 16.

Therefore, the damper 10 is first rotated without rotating the dampers 10 and 11 at the same time, and the low temperature side suction hole 302 is formed.
Since the damper 11 is rotated after opening, the warm heat in the low temperature side heat exchange container 5 is not supplied to the showcase 2 during the regeneration process, and the cooling efficiency of the system is improved.

After performing this preliminary operation process II for 3 minutes,
The process proceeds to the cold heat generation process described above. Then, the cooling operation is continuously performed by repeatedly performing the regeneration mode and the cold heat generation mode.

As described above, in the reproduction process and the preliminary operation processes I and II, the rotation of the dampers 10 and 11 brings the fan 7 and the outside of the device 3 into communication with each other, and drives the fan 7 to the outside of the device 3. Since the sound easily leaks, the fan 7 is driven with an output smaller than the drive output in the cold heat generation process.
We are trying to maintain the quietness of the system.

In the above embodiment, the case where the regenerator 4 is filled with three kinds of regenerator materials having different melting points in the direction of the air flow supplied to the regenerator 4 in order to form a three-layer structure has been described. The same effect can be obtained also in the case of other multi-layer structure.

In the above embodiment, the case where air is used as the heat medium has been described, but other heat medium such as water may be used.

[0051]

As described above, according to the present invention, it is possible to make the temperature of the cold heat supplied to the cooled warehouse constant during the cold heat generation process and the regeneration process, and to provide a high-performance cooling device. be able to.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a flower growing system using a hydrogen absorption / desorption heat exchanger of the present invention.

FIG. 2 is a side sectional view of the flower growing system of FIG. 1 embodiment.

FIG. 3 is an external view of the regenerator viewed from the surface shown in FIG.

FIG. 4 is a side view of FIG.

5 is a schematic perspective view of each cold storage material container shown in FIG. 3. FIG.

6 is an external view of the low temperature side heat exchange container and the high temperature side heat exchange container as viewed from the surface shown in FIG. 2. FIG.

FIG. 7 is a side view of FIG.

8 is a cross-sectional view of essential parts of the low temperature side alloy container shown in FIG.

9 is a cross-sectional view of essential parts of the high temperature side alloy container shown in FIG.

FIG. 10 is a system schematic view showing an operation in a cold heat generation process of a flower growing system using the hydrogen absorption / desorption heat exchanger of the present invention.

FIG. 11 is a system schematic view showing an operation in a regeneration process of a flower growing system using the hydrogen absorption / desorption heat exchanger of the present invention.

FIG. 12 is a temperature change diagram of the air supplied to the regenerator in the cold heat generation process and the regeneration process.

[Explanation of symbols]

 1 Case 2 Showcase (Cooled Room) 3 Cooling Device 4 Regenerator 5 Low Temperature Side Heat Exchange Container 6 High Temperature Side Heat Exchange Container 101 Cooling Material Container 102 U-shaped Tube 103-105 Cooling Material Filling End 106 Aluminum Fin 108 Internal Transmission Accelerator 202 Hydrogen piping

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] March 2, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction content]

A low temperature side heat exchange container 5 filled with 12 kg,
The low temperature side heat exchange container 5 (79 cm x 30 cm x height 18.
5 cm) below, and hydrogen storage alloy B having a hydrogen equilibrium pressure lower than that of hydrogen storage alloy A at the same temperature shown in [Chemical formula 2].

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0014

[Correction method] Change

[Correction content]

High temperature side heat exchange container 6 (7) filled with 12 kg of
9 cm × 30 cm × height 18.5 cm), a fan 7 provided near the low temperature side heat exchange container 5 for forming an air flow to be sent to the regenerator 4 and the showcase 2, and a high temperature side heat exchange container 6. And a fan 8 for forming an air flow for discharging the heat generated in the high temperature side heat exchange container 6 to the outside of the device 3 when the low temperature side heat exchange container 5 generates cold heat, and the high temperature side heat exchange container 6 A heater (not shown) provided inside the showcase 2 for generating heat when the low temperature side heat exchange container 5 is regenerated;
And the dampers 10 to 14 for switching the communication states of the regenerator 4, the low temperature side heat exchange container 5 to supply cold heat to the showcase 2, and the communication states of the high temperature side heat exchange container 6 and the outside air. It is composed of a damper 15 for discharging warm heat to the outside of the device 3. The low temperature side heat exchange container 5 and the high temperature side heat exchange container 6 are connected by a hydrogen pipe described later so that hydrogen can move between them.
The dampers 10 to 13 are rotatably supported by an AC motor (not shown).

[Procedure 3]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 4

[Correction method] Change

[Correction content]

[Figure 4] ─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] April 17, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0026

[Correction method] Change

[Correction content]

Further, inside the both ends of each low temperature side alloy filling container 201 where the aluminum fins 203 are not mounted, a ceramic fiber type heat insulating material 209 such as kao wool is provided so as to sandwich the hydrogen storage alloy A therebetween. The heat insulating material 209 absorbs a change in volume when the hydrogen storage alloy A absorbs and discharges hydrogen, and also prevents a reduction in cold heat generation efficiency due to a heat effect in a portion where the aluminum fins 203 are not provided.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0028

[Correction method] Change

[Correction content]

Further, below the high temperature alloy filling container 204, a heater 21 for heating the hydrogen storage alloy B is provided.
An insertion hole 215 for inserting 4 from the same side as the alloy filling tube 213 is provided. Therefore, this insertion hole 215
By providing the heating heater 21 even after each high temperature side alloy filling container 204 is filled with the hydrogen storage alloy B.
4 can be easily replaced and inspected. Further, in each high temperature side alloy filling container 204, a heater 214
Is located at the lower part in order to eliminate heating unevenness due to rise in heat. The heater 214 is made of nichrome wire and heats the hydrogen storage alloy B of each high temperature alloy filling container 204 to 110 ° C. when the low temperature side heat exchange container 5 is regenerated. Further, for the same purpose as the low temperature side alloy filling container 201, the ceramic fiber type heat insulating material 216 is sandwiched inside the both ends of each high temperature side alloy filling container 204 where the aluminum fins 205 are not attached. Is provided.

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Tatsuya Hirose 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. (72) Inventor Koji Akashi 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Denki Incorporated (72) Inventor Seiji Ikeda 2-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Ikuro Yonezu 2-chome Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. ( 72) Inventor Masato Osumi 2-18, Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd.

Claims (1)

[Claims] 1. A low-temperature heat exchange container and a high-temperature heat exchange container capable of exchanging heat, each containing a hydrogen storage alloy having a different hydrogen equilibrium pressure, are communicated with each other, and the low-temperature heat exchange container and the high-temperature heat exchange container are connected to each other. In the cold heat generation process in which hydrogen moves to, the cold heat generated in the low temperature side heat exchange container is regenerator by a heat medium,
While supplying in the order of the cold storage, in the regeneration process of returning the hydrogen moved to the high temperature side heat exchange container to the low temperature side heat exchange container, the cold heat stored in the regenerator is transferred to the cold storage by the heat medium. It is a cooling device which supplies and cools, Comprising: The said regenerator WHEREIN: With respect to the heat medium supply direction to a regenerator in the said cold-heat generation process, at least 2 or more cold storage materials with different melting points are from a low melting point one by one. A cooling device, wherein the cooling medium is filled and the heat medium supply direction to the regenerator is reversed in the cold heat generating process and the regenerating process.