JP2000205694A - Heat utilization system utilizing hydrogen occlusion alloy - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a system, and to reduce the costs of a driving source by providing a heat exchanger for exchanging heat between a heat medium being supplied and discharged from a supply/discharge hole at a fixed side and a hydrogen occlusion alloy being accommodated inside, so that the supply/discharge hole slides around a columnar distributor being formed on an outer-periphery surface and is rotated. SOLUTION: Combustion equipment and a heat radiation water-cooling means are additionally provided at a heat exchange unit using a hydrogen occlusion alloy, and the inside of a room is air-conditioned by chill output water being cooled by heat absorption being generated by the hydrogen discharge operation of the hydrogen occlusion alloy. In this case, the heat exchange unit is composed of a heat exchanger 8 where a number of flat ring disks for exchanging heat between the hydrogen occlusion alloy and a plurality of heat media are laminated, and a distributor that supplies and discharges a plurality of the heat media. Then, by rotating the cylindrical heat exchanger 8 around the distributor, the heat medium is changed, and first - third containers S1-S3 being connected by a hydrogen path S4 are successively shifted from a hydrogen driving part to first and second chill output parts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydrogen storage alloy which repeatedly absorbs and desorbs hydrogen to obtain a cold output by utilizing an endothermic effect generated at the time of releasing hydrogen, or to radiate heat at the time of storing hydrogen. The present invention relates to a heat utilization system using a hydrogen storage alloy that obtains a thermal output using an action.

[0002]

BACKGROUND OF THE INVENTION A heat utilization system utilizing a hydrogen storage alloy employs means for switching and supplying a heat medium to a heat exchanger for exchanging heat between the hydrogen storage alloy and a heat medium. As a means for switching and supplying the heat medium, there has been proposed a system in which an electromagnetic valve for switching the heat medium is unnecessary, and the heat capacity is reduced to improve the heat exchange efficiency (Japanese Patent Application No. 10-204079).
issue). In this technique, a plurality of containers (hereinafter, referred to as alloy containers) that contain an alloy around a rotation axis are covered with a heat medium container, and a ring-shaped distributor is fixedly arranged around the outer periphery of the heat medium container that rotates together with the alloy container. The seal is formed at a sliding contact surface between the heat medium container and the distributor.

[0003]

In the case where the distributor shown above is of the outer ring type, when the pipes for supplying and discharging the heat medium are connected, the connecting parts are separated from each other. As a result, the pipe connecting parts are dispersed. In addition to being complicated, the substantial external dimensions of the heat exchange unit become large, causing a problem that requires a large installation space. In addition, the total distance of the sliding contact portion is increased, the sliding contact resistance is increased, and it is necessary to increase the rotational driving force of the heat exchanger. This increases the cost of the electric motor serving as the rotational driving source and reduces power consumption. There is a problem that increases.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to reduce the size of a heat exchange unit.
Another object of the present invention is to provide a heat utilization system using a hydrogen storage alloy that can reduce the cost of a drive source that rotationally drives a heat exchanger.

[0005]

[Means for Solving the Problems] A heat utilization system using a hydrogen storage alloy utilizes the heat absorption of the hydrogen storage alloy when releasing hydrogen or the heat radiation when storing hydrogen. A fixed-side supply / discharge hole for supplying and discharging a plurality of heat media is provided on a cylindrical distributor formed on an outer peripheral surface. A heat medium which is formed on the inner peripheral surface of a cylindrical hole provided at the center with a rotation side supply / discharge hole for supplying and discharging, and which is supplied / discharged from the fixed side supply / discharge hole of the distributor via the rotation side supply / discharge hole. And a heat exchanger for exchanging heat with the hydrogen storage alloy housed therein.

According to a second aspect of the present invention, in the heat utilization system using the hydrogen storage alloy according to the first aspect, the distributor includes:
A plurality of cylindrical blocks having the fixed-side supply / discharge holes formed therein, and a joint disposed between the plurality of blocks and twisting and changing the flow of the heat medium between the blocks. Features.

According to a third aspect of the present invention, in the heat utilization system using the hydrogen storage alloy according to the first or second aspect,
A pipe for a high-temperature heat medium is connected to one end of the distributor, and a pipe for a low-temperature heat medium is connected to the other end of the distributor.

[0008]

[Advantages and effects of the invention] [Advantages and effects of claim 1] Since the structure in which the distributor is arranged in the cylindrical hole provided at the center side of the heat exchanger is adopted, the piping for supplying and discharging the heat medium is provided by the distributor. Are connected to each other. As described above, since the connection portions of the respective pipes are collectively arranged in the distributor on the center side of the heat exchanger, the connection of the pipes is simplified, and the substantial external dimensions of the heat exchange unit can be reduced. In addition, the adoption of a structure in which the distributor is disposed in a cylindrical hole provided on the center side of the heat exchanger reduces the total distance of the sliding contact between the distributor and the heat exchanger, thereby reducing the sliding resistance. In addition, the rotational driving force of the heat exchanger can be reduced. For this reason, the cost of the electric motor serving as the rotary drive source can be reduced, the power consumption can be reduced, and the running cost can be reduced.

[Action and Effect of Claim 2]
Since the fixed-side supply / discharge hole is formed of a block and a joint disposed between the blocks, for example, the method of supplying the heat medium to the plurality of rotation-side supply / discharge holes of the heat exchanger is changed from parallel connection supply. When changing to the series connection supply or vice versa, it is only necessary to change the block, so that the cost increase of the distributor due to the change in the supply method can be suppressed as much as possible.

According to the third aspect of the present invention, a high-temperature heat medium pipe is connected to one end of the distributor and a low-temperature heat medium pipe is connected to the other end of the distributor. The problem that heat loss occurs due to heat exchange between the medium and the low-temperature heat medium can be suppressed.

[0011]

Next, embodiments of the present invention will be described based on examples and modifications. [Configuration of Embodiment] In this embodiment, a heat utilization system using a hydrogen storage alloy is applied to cooling for indoor air conditioning. The cooling apparatus 1 will be described with reference to FIGS.
The cooling device 1 of the present embodiment uses a two-stage cycle as an example of the heat exchange unit 2 using a hydrogen storage alloy.

A schematic configuration of the cooling device 1 will be described with reference to FIG. The cooling device 1 includes a heat exchange unit 2 using a hydrogen storage alloy, a combustion device 3 for producing heating water (corresponding to a heating medium for heating, water in this embodiment) for heating the hydrogen storage alloy, and a hydrogen storage device. A facility water cooling means 4 for cooling facility water by cooling the facility water (corresponding to a heat medium for heat dissipation, water in the present embodiment) for cooling the alloy; and a cold heat cooled by heat absorption generated by the hydrogen releasing action of the hydrogen storage alloy. An indoor air conditioner 5 for air-conditioning the room with output water (corresponding to a heat medium for cooling output, in this embodiment, water), and a control device 6 for controlling each mounted electric functional component.

The heat exchange unit 2, the combustion device 3, the facility water cooling means 4, and the control device 6 are installed outdoors as an outdoor unit 7, and an indoor air conditioner 5 is disposed indoors. The cooling device 1 according to the present embodiment is a so-called multi-air conditioner in which a plurality of indoor air conditioners 5 can be connected to one outdoor unit 7.

(Description of Heat Exchange Unit 2) The heat exchange unit 2 includes a heat exchanger 8 for exchanging heat between the hydrogen storage alloy and a plurality of heat media, and a distributor 9 for supplying and discharging a plurality of heat media. It is composed of The heat exchanger 8 shown in the present embodiment has a cylindrical shape having a cylindrical hole 8a on the rotation center side, and a columnar distributor 9 arranged in a horizontal direction rotates inside the cylindrical hole 8a. It is inserted freely and is provided so as to rotate around the distributor 9 (in FIG. 10, for convenience,
The figure shows the distributor 9 arranged vertically).

The heat exchanger 8 is formed by laminating a number of flat ring disks R as shown in FIGS. 2 and 5, and one ring disk R contains a hydrogen storage alloy inside. Flat alloy storage chamber 10 to be stored (refer to hatching in FIG. 6 (a), first to third containers S1 to S3 described later)
Are arranged radially to form a heat medium passage 11 {see the hatching in FIG. 6B} between the alloy container (a container constituting the alloy storage chamber 10) and the alloy container in the stacking direction. is there.

One ring disk R is formed by opposing and joining a pair of plates 12 and 13 (see FIG. 2) formed by press-forming a metal having no hydrogen permeability, such as stainless steel or copper. Each of the plates 12 and 13 has a recess for forming the alloy storage chamber 10 formed on one surface and a recess for forming the heat medium passage 11 formed on the other surface. As shown in FIG. 2, the heat exchanger 8 is formed by stacking a number of ring disks R each including a pair of plates 12 and 13, connecting pipes S5 and end portions for securing a hydrogen passage S4 at the outer end of the alloy container. In addition to the closing lid S6, a cylindrical pipe S7 for distributing and slidingly contacting the distributor is mounted on the inner periphery of the cylindrical hole 8a and joined by a joining method such as vacuum brazing or welding. The supply and discharge of the heat medium to and from each of the heat medium passages 11 in the heat exchanger 8 is performed through a fixed side supply / discharge hole A1 (described later) formed in the outer peripheral surface of the distributor 9 in the cylindrical pipe S7. A rotation-side supply / discharge hole A2 (to be described later) is formed.

The number of alloy containers formed on one ring disk R is 2 × when the heat exchange unit 2 is a one-stage cycle.
n (n = positive integer), and 3 × for a two-stage cycle
n, and 4 × n for a three-stage cycle. In this embodiment, an example is shown in which a two-stage cycle is adopted and six alloy containers are formed on one ring disk R. 1
The plurality of alloy containers formed on one ring disk R are arranged so as to be wound around the center of the disk. Thereby, the filling efficiency of the hydrogen storage alloy in the space occupied by the heat exchange unit 2 increases, and as a result, the heat exchange unit 2 can be downsized.

The heat exchange unit 2 of this embodiment uses a two-stage cycle as described above. An alloy container formed by stacking a number of ring disks R is filled with a high-temperature alloy HM. The first container S1 communicates with the first container S1 through a hydrogen passage S4, and the second container S2 in which the intermediate temperature alloy MM is sealed. The second container S2 communicates with the second container S2 through a hydrogen passage S4. The third container S3 in which the alloy LM is sealed is classified.

Hydrogen storage alloys have different hydrogen equilibrium pressures.
The high-temperature alloy HM enclosed in the first container S1 is a powder of a high-temperature hydrogen-absorbing alloy having the highest hydrogen equilibrium temperature at the same equilibrium hydrogen pressure, and is enclosed in the second container S2. Medium temperature alloy MM is a powder of medium temperature hydrogen storage alloy,
The low-temperature alloy LM enclosed in the third container S3 is a powder of a low-temperature hydrogen storage alloy having the lowest hydrogen equilibrium temperature at the same equilibrium hydrogen pressure. This relationship will be described with reference to the PT refrigeration cycle diagram of FIG. 11. The characteristics of the hydrogen storage alloy are relatively high on the high temperature side (left side in the figure), high temperature alloy HM, low temperature alloy LM on the low temperature side, Middle temperature alloy MM is between the two.
It is. The powdery alloys HM, MM, and LM are filled in the first to third containers S1 to S3, evacuated, activated, filled with hydrogen at a high pressure, and then filled with an alloy. The opening 14 is sealed and sealed with a metal lid (not shown).

The cylindrical heat exchanger 8 is provided so as to rotate around a cylindrical distributor 9. The heat exchanger 8 is continuously and rotationally driven by a rotational drive unit (for example, a unit that directly or indirectly rotates the heat exchanger 8 by an electric motor via a gear or a belt).

The structure of the distributor 9 is shown in FIGS. 1, 3 and 4. The distributor 9 switches and supplies the heat medium that contacts the first to third containers S1 to S3.
Is rotated around the distributor 9, the heat medium supplied to each heat medium passage 11 between the alloy containers (between the stacking directions) is switched, and the first heat medium is connected by the hydrogen passage S 4.
The third containers S1 to S3 shift from the hydrogen driving section α to the first cooling output section β → the second cooling output section γ (see FIG. 9).

The hydrogen drive unit α is a unit for forcibly moving the hydrogen in the first container S1 into the third container S3, and the first cold / heat output unit β is a unit for transferring the hydrogen transferred into the third container S3 to the second container S3. S2
The second cooling output unit γ is the second container S2
This is a part for moving the hydrogen transferred into the first container S1. The hydrogen drive unit α, the first cooling output unit β, and the second cooling output unit γ are provided at approximately 120 ° intervals, and each fixed-side supply / discharge hole A 1 formed on the outer peripheral surface of the distributor 9. (Described later).

The hydrogen driving section α has a heating zone α 1 to which heated water (for example, about 80 ° C.) which comes into contact with the first container S 1 is supplied.
A second pressure increasing region α2 to which pressurized water (for example, about 56 ° C.) contacting the second container S2 is supplied, and a third heat releasing region α3 for supplying radiating water (for example, approximately 28 ° C.) to contact the third container S3.
Is provided. The first cooling / heat output section β is supplied with a first pressurized region β1 in which pressurized water (for example, about 58 ° C.) is brought into contact with the first container S1, and a facility water (for example, about 28 ° C.) in contact with the second container S2. The second heat radiation area β2 is supplied, and the third heat supply water (for example, about 13 ° C.) contacting the third container S3 is supplied.
It has a cooling output area β3. The second cooling output section γ is provided with a first radiating zone γ1 to which radiating water (for example, about 28 ° C.) that comes into contact with the first container S1 and a cold output water (for example, about 13 ° C.) that comes into contact with the second container S2. The second cooling power output area γ to be supplied
2 is provided. The temperature of the heat medium in contact with the third container S3 in the second cold / hot output section γ is not questionable, and this portion is referred to as an unquestionable area γ3.

When the heat exchanger 8 is rotated by the rotation driving means, the group of the first containers S1 is heated in the heating zone α1 →
The first step-up region β1 → the first heat radiation region γ1 is repeated, and the group of the second containers S2 repeats the second step-up region α2 → the second heat radiation region β2 → the second cooling / heat output region γ2, and the third container S3 is the third container S3. The third heat radiation area α3 → the third cooling / heat output area β3 → the non-interest area γ3 is repeated.

Next, delivery of the heat medium between the distributor 9 and the heat exchanger 8 will be described. As shown in FIGS. 1 and 3, the distributor 9 includes a first block 9a for supplying and discharging a heat medium to and from a heat medium passage 11 formed between the first containers S1 and a second container S2. A second block 9b for supplying and discharging the heat medium to and from the heat medium passage 11 formed therebetween and a second block 9b for supplying and discharging the heat medium to and from the heat medium passage 11 formed between each of the third containers S3. A first joint 9d that includes three blocks 9c and is arranged between the first block 9a and the second block 9b to change the flow of the heat medium by 120 ° by twisting;
A second joint 9e is disposed between the second block 9b and the third block 9c and twists and changes the flow of the heat medium by 120 °.

Each of the first and second joints 9d and 9e is formed by laminating a plurality of disks each having a hole for passing a heat medium through the holes so that the holes communicate with each other. The first to third blocks 9a to 9c and the first and second joints 9d and 9e are assembled in a rod shape and then firmly connected by a long bolt 9f and a nut 9g. Note that the reference numeral 9h shown in FIG.
This is a groove for attaching a ring.

As shown in FIGS. 3 and 4B, the distributor 9 of this embodiment has first to third containers S1 to S3.
FIG. 4A shows a series connection supply type in which a heat medium is supplied in series to the first to third containers S1 to S1 as shown in FIG.
3, a parallel connection supply type for supplying a heat medium in parallel may be adopted. Such a change of the series connection and the parallel connection can be easily made by changing the first to third blocks 9a to 9c. When the temperature change of the heat medium is cumulative by the setting of the series connection and the parallel connection ( It is possible to select a case in which the heat medium is at an optimum temperature to the first to third vessels S1 to S3 of the heat exchanger 8.

Each of the first to third blocks 9a to 9c is disposed in correspondence with the hydrogen drive unit α, the first cooling / heating output unit β, and the second cooling / heating output unit γ, and the heating medium is set according to each unit. Is formed with a fixed supply / discharge hole A1 for supply / discharge. Each fixed-side supply / discharge hole A1 will be specifically described with reference to FIG.

In the first block 9a, a fixed-side supply / discharge hole A1 for supplying / discharging the heating water to / from the heat medium passage 11 between the first containers S1 shifted to the heating zone α1, and a shift to the first boosting zone β1. A fixed-side supply / discharge hole A1 for supplying / discharging pressurized water to / from the heat medium passage 11 between the first containers S1, and a first heat transfer region .gamma.
A fixed-side supply / discharge hole A1 for supplying / discharging facility water is formed in the heat medium passage 11 between the containers S1. Second block 9b
The fixed side supply / discharge hole A1 for supplying / discharging the pressurized water to / from the heat medium passage 11 between the second containers S2 shifted to the second pressure increasing region α2.
A fixed-side supply / discharge hole A1 for supplying / discharging facility water to / from the heat medium passage 11 between the second containers S2 shifted to the second heat radiation region β2;
A fixed-side supply / discharge hole A for supplying / discharging the cold output water to / from the heat medium passage 11 between the second containers S2 shifted to the second cold output range γ2.
1 is formed. In the third block 9c, a fixed-side supply / discharge hole A1 for supplying / discharging facility water to / from the heat medium passage 11 between the third containers S3, which has shifted to the third heat radiation area α3, and a third cold heat output area β3. A fixed-side supply / discharge hole A1 for supplying / discharging cold-heat output water to / from the heat medium passage 11 between the third containers S3,
The fixed-side supply / discharge hole A for supplying / discharging unrequired water not involved in hydrogen transfer to the heat medium passage 11 between the third containers S3 shifted to the third position.
1 is formed. Each of the fixed side supply / discharge holes A1 is arranged such that the supply side and the discharge side are shifted in the axial direction.

A pipe for supplying / discharging the heat medium to / from the distributor 8 is connected to an end of the distributor 9. In this embodiment, as shown in FIG. 3, a pipe for a high-temperature heat medium (heating water, pressurized water) is connected to one end (left side in FIG. 3) of the distributor 9 and the other end ( A pipe for a low-temperature heat medium (radiation water, cold heat output water, unrestricted water) is connected to the right side of FIG. 3. As described above, the piping connected to the distributor 9 is a high-temperature system at one end of the distributor 9 and a low-temperature system at the other end, so that the high-temperature heat medium and the low-temperature heat medium exchange heat. The problem that heat loss occurs can be suppressed. In this embodiment, an example in which pipes for supplying and discharging the heat medium are connected to both ends of the distributor 9 is shown. May be reduced.

As described above, the cylindrical pipe S7 for the sliding contact of the distributor is joined to the inner peripheral surface of the heat exchanger 8, and the cylindrical pipe S7 is connected to the fixed side supply / discharge of the distributor 9. A plurality of rotation side supply / discharge holes A2 for supplying / discharging the heat medium through the holes A1 are formed. The heat exchanger 8 of this embodiment is formed by laminating a number of ring disks R each having six alloy containers formed in the circumferential direction in the axial direction.
The group of containers S1 is circumferentially arranged around the first block 9a.
And a group of second containers S2 adjacent to each other in the stacking direction
Six groups of the third containers S3, which are arranged in the circumferential direction around the second block 9b and are adjacent to each other in the stacking direction, form the third block 9c.
Are arranged in the circumferential direction. For this purpose, the cylindrical pipe S7 is provided with a total of 12 rotation-side supply / discharge holes A2 for the supply and discharge sides for the six groups of the first container S1. A total of 12 rotary side supply / discharge holes A2 are formed for the group on the supply side and the discharge side, and a total of 12 rotary side supply / discharge holes A2 are provided for the six groups of the third container S3. A side supply / discharge hole A2 is formed.
Each of the rotation side supply / discharge holes A2 is arranged such that the supply side and the discharge side are shifted in the axial direction (the laminating direction of the alloy containers).

As described above, the heat medium passage 11 is formed between the adjacent alloy containers in the stacking direction, and the first, second, and third containers S1, S2, and S are formed in the alloy container.
3 A through hole A3 penetrating in the stacking direction within each range
Are provided, and each heat medium passage 11 communicates with the adjacent heat medium passage 11 via the through hole A3. The heat exchanger 8 of this embodiment has a rotation side supply / discharge hole A of a cylindrical pipe S7.
A parallel connection supply type in which the heat medium supplied into the heat exchanger 8 from the supply side of No. 2 is distributed and supplied to each heat medium passage 11 is adopted. For this reason, both through holes A3 for supplying the heat medium and through holes A3 for discharging the heat medium are formed in each alloy container. The heat exchanger 8 has a through hole A3 for supplying a heat medium and a through hole A3 for discharging a heat medium in each alloy container.
Ring disk R1 on which both are formed (see FIG. 7, a)
And a boundary between the group of the first container S1 and the group of the second container S2 and a boundary between the group of the second container S2 and the group of the third container S3. It is constructed by combining a partitioning ring disk R2 without A3 (see FIG. 7, b).

The flow of the heat medium supplied into the heat exchanger 8 will be described with reference to FIG. The heat medium supplied into the heat exchanger 8 from the supply side (upper side in FIG. 8) of the rotation side supply / discharge hole A2 is subjected to heat exchange through the heat medium supply through-hole A3 connecting the heat medium passages 11. It flows in the axial direction of the vessel (downward in FIG. 8), and each heat medium passage
1 and distributed. The heat medium that has passed through each heat medium passage 11 is collected in a heat medium discharge through hole A3 that communicates with each heat medium passage 11, and the heat exchanger passes through the heat medium discharge through hole A3. In the axial direction (downward in FIG. 8). Then, the heat medium flowing downward in FIG. 8 is supplied to the rotation side supply / discharge hole A2 by the heat medium discharge through hole A3.
From the discharge side (the lower side in FIG. 8) of the distributor 9
It is discharged to 1 (discharge side). That is, in each of the containers S1, S2, and S3 of the heat exchanger 8, the heat medium flows in the axial direction by the through holes A3 provided through in the stacking direction of the alloy containers. The supply side and the discharge side of the provided rotation side supply / discharge hole A2 can be arranged so as to be shifted in the axial direction.

(Explanation of other components in heat exchange unit 2) Reference numeral 15 shown in FIG.
The pressurized water is circulated by a pressurized water circulation pump P1 'provided in a pressurized water circulation path for circulating pressurized water between the first and second pressurized regions α2. The pressurized water uses water whose temperature has risen due to heat transfer from the first vessel S1 whose temperature has risen in the heating zone α1, and the temperature of the pressurized water in the first booster zone β1 during the operation of the heat exchange unit 2. Is about 58.degree. C., for example, and the temperature of the pressurized water in the second pressure increasing region .alpha.2 is about 56.degree.

(Explanation of Combustion Apparatus 3) The combustion apparatus 3 of this embodiment uses a gas combustion apparatus which burns a gas as a fuel to generate heat and heats heated water by the generated heat. A gas burner 16 for burning gas, a gas supply circuit 19 including a gas amount adjusting valve 17 for supplying gas to the gas burner 16 and a gas opening / closing valve 18;
It comprises a combustion fan 20 for supplying combustion air to the heat exchanger, a heat exchanger 21 for exchanging heat between gas combustion heat and heating water, and the like. Then, the heating water is heated to, for example, about 80 ° C. by the heat obtained by the gas combustion of the gas burner 16, and the heated heating water is supplied to the heating zone α1 through the heating water circulation path 22 provided with the heating water circulation pump P1. Is what you do. The heated water circulation pump P1 of this embodiment is the same as the pressurized water circulation pump P1 '
Is a tandem pump driven by a dual-purpose motor. For this reason, when the heating water is supplied from the combustion device 3 to the heat exchange unit 2, the pressurized water is also provided so as to circulate.

(Explanation of the indoor air conditioner 5)
As described above, the indoor heat exchanger 23 is provided inside the indoor heat exchanger 23, and the cold output water supplied to the indoor heat exchanger 23 and the indoor air are forcibly exchanged heat and the air after the heat exchange is performed. Indoor fan 24 for blowing air into the room. The indoor heat exchanger 23 is connected to a cold output water circulation path 25 for circulating the cold output water supplied from the third cold output area β3 and the second cold output area γ2. A cooling output water pump P2 (corresponding to an output pump) for circulating the cooling output water is provided in the apparatus 7).

(Explanation of the facility water cooling means 4) The facility water cooling means 4 is a water cooling open type cooling tower, and the facility water cooled by the facility water cooling means 4 is a facility water circulation pump P
The third heat radiation area α3,
The second heat radiation area β2 and the first heat radiation area γ1 are supplied. The facility water cooling means 4 includes a third heat dissipation area α3, a second heat dissipation area β2,
The facility water that has passed through the heat dissipation area γ1 flows downward from above,
While exchanging heat with the outside air during the flow to radiate heat, it also partially evaporates during the flow, deprives the radiating water flowing during evaporation of heat of vaporization, and cools the flowing radiating water. . The radiating water cooling means 4 includes a radiating fan (not shown), and is provided so as to promote evaporation and cooling of the radiating water by an air flow generated by the radiating fan. In this embodiment, a water-cooled open-type cooling tower is shown as the facility water cooling means 4, but a facility-type water-cooled or air-cooled facility in which facility water (heat medium for heat dissipation) exchanges heat without contacting air. Cooling means may be used.

Here, the above-mentioned heated water circulation path 22, cold output water circulation path 25 and facility water circulation path 26 are provided with cisterns T1, T2 and T3, respectively, and the water levels in the cisterns T1, T2 and T3 are at predetermined water levels. When it falls below, the water supply valves T4, T5, T6 provided respectively.
Is opened to supply tap water supplied from the water supply pipe 27 into the cisterns T1, T2 and T3.
A drain pan P is disposed below the heat exchange unit 2, and drain water generated in the heat exchange unit 2 is drained by a drain pipe 2.
8 is provided to drain water. The water overflowing from the facility water cooling means 4 is also drained from the drain pipe 28.

(Explanation of the control device 6) The control device 6 is provided with an operation instruction from a controller provided in the indoor air conditioner 5,
In accordance with the input signals of the plurality of sensors provided, the above-mentioned heated water circulation pump P1 (pressurized water circulation pump P1 '), cooling / heat output water pump P2, facility water circulation pump P3, water supply valves T4, T5, T6, facility water cooling means 4 and the electric functional components of the combustion device 3 (ignition device, gas control valve 17, gas on-off valve 1 not shown)
8, the combustion fan 20, etc.), and also gives an instruction to the indoor air conditioner 5 to operate the indoor fan 24.

(Explanation of Cooling Operation) The cooling device 1 described above
The operation of the cooling operation according to the above will be described with reference to the PT refrigeration cycle diagram of FIG. When the cooling operation is instructed by the controller of the indoor air conditioner 5, the controller 6
The combustion device 3, the rotation driving means, the radiating fan and the heated water circulation pump P1 (the boosted water circulation pump P1 '), the cooling / heating output water pump P2, and the facility water circulation pump P3 are operated, and the indoor fan of the indoor air conditioner 5 instructed to perform cooling. 24
Turn ON.

The heat exchanger 8 is continuously rotated by the rotation driving means. This allows many alloy containers to
It moves in the order of the hydrogen drive unit α → the first cooling / heating output unit β → the second cooling / heating output unit γ. That is, each of the first containers S1 has a heating zone α1 →
It moves in the order of the first step-up region β1 → the first heat radiation region γ1,
The containers S2 move in the order of the second pressure increasing region α2 → the second heat radiation region β2 → the second cooling power output region γ2, and each of the third containers S3 moves in the order of the third heat radiation region α3 → the third cooling / heat output region β3 → the interrogation region γ3. Move in order.

When the operation proceeds to the hydrogen driving section α, the first container S1
Touches the heated water, the second container S2 touches the pressurized water, and the third container S3 touches the facility water. The first container S1 contains heated water (80
C.), the internal pressure of the first vessel S1 increases, and the high-temperature alloy HM releases hydrogen. When the second container S2 comes into contact with the pressurized water (56 ° C.), the internal pressure of the second container S2 rises to a pressure at which the intermediate temperature alloy MM does not absorb hydrogen. When the third container S3 comes into contact with facility water (28 ° C.), the internal pressure of the third container S3 decreases, and the low-temperature alloy LM stores hydrogen.

As described above, the first container S1 touches the heated water in the heating zone α1, the second container S2 touches the pressurized water in the second boosting zone α2, and the third container S3 sets the radiating water in the third radiating zone α3. The first container S1 at 80 ° C .: 1.0MP
a, the temperature in the second container S2 is 56 ° C .: 1.0 MPa, the temperature in the third container S3 is 28 ° C .: 0.9 MPa, and the high-temperature alloy HM in the first container S1 releases hydrogen (FIG. 11), The low-temperature alloy LM in the container S3 stores hydrogen (FIG. 11).
The second container S2 is heated by the pressurized water and has a high internal pressure, and the medium temperature alloy MM does not occlude hydrogen. And
After passing through the hydrogen drive unit α, it moves to the first cooling / heating output unit β.

When the operation proceeds to the first cooling output section β, the first container S1 contacts the pressurized water, the second container S2 contacts the facility water, and the third container S3 contacts the cooling output water. When the first container S1 comes into contact with the pressurized water (58 ° C.), the internal pressure of the first container S1 rises to a pressure at which the high-temperature alloy HM does not absorb hydrogen.
When the second container S2 comes into contact with facility water (28 ° C.),
The internal pressure of the second container S2 decreases, the medium temperature alloy MM absorbs hydrogen, and the low temperature alloy LM of the third container S3 releases hydrogen.
Since the low-temperature alloy LM releases hydrogen, heat is absorbed in the third container S3, and the cold output water touching the third container S3 is cooled to, for example, 7 ° C. When the cold output water is about 13 ° C., the internal pressure of the third container S3 is lower than that of the second container S3.
It is provided to be higher than the internal pressure of 2.

As described above, the first container S1 is placed in the first pressure increasing region β.
1 touches the pressurized water, the second container S2 touches the facility water in the second heat radiation zone β2, and the third container S3 touches the cold heat output water in the third cold heat output zone β3. ° C:
0.5MPa, 28 ° C in the second container S2: 0.4MP
a, the temperature in the third container S3 is 13 ° C .: 0.5 MPa, the low-temperature alloy LM in the third container S3 releases hydrogen (FIG. 11), and the medium-temperature alloy MM in the second container S2 stores hydrogen (FIG. 11). 11). When the low-temperature alloy LM in the third container S3 releases hydrogen, heat is taken from the cold output water in contact with the third container S3 by an endothermic action to lower the temperature of the cold output water. The first container S1 is heated by the pressurized water and has a high internal pressure, and the high-temperature alloy HM does not occlude hydrogen. And
After passing through the first cooling / heating output section β, it moves to the second cooling / heating output section γ.

When the operation shifts to the second cooling output section γ, the first container S1 contacts the facility water, the second container S2 contacts the cooling output water, and the third container S3 contacts the unrequired water. When the first container S1 comes into contact with facility water (28 ° C.), the internal pressure of the first container S1 decreases, the high-temperature alloy HM absorbs hydrogen, and the second container S1 absorbs hydrogen.
2 Medium temperature alloy MM releases hydrogen. Since the middle temperature alloy MM releases hydrogen, heat is absorbed in the second container S2, and the second
The cold output water touching the container S2 is cooled to, for example, 7 ° C. The medium-temperature alloy MM is provided so that the internal pressure of the second container S2 is higher than the internal pressure of the first container S1 when the cooling output water is about 13 ° C.

As described above, the first container S1 has the first heat radiation area γ.
By contacting the facility water with 1, the inside of the first container S1 becomes 28
° C: 0.1 MPa, 13 ° C in the second container S2: 0.2M
Pa, the inside of the third container S3 becomes unquestioned, and the second container S2
The middle temperature alloy MM releases hydrogen (FIG. 11), and the high temperature alloy HM in the first container S1 stores hydrogen (FIG. 11). When the medium temperature alloy MM in the second container S2 releases hydrogen, heat is taken from the cold output water that comes into contact with the second container S2 by an endothermic action to lower the temperature of the cold output water. The third
The temperature of the container S3 is irrelevant and the low temperature alloy L of the third container S3
M does not occlude hydrogen. And the second cooling / heating output section γ
, Then moves to the hydrogen drive unit α.

The low-temperature cold output water deprived of heat in the third cold output area β3 and the second cold output area γ2 of the heat exchange unit 2 passes through the cold output water circulation path 25 to the indoor air conditioner 5 in the room. The air is supplied to the heat exchanger 23 and exchanges heat with air blown into the room to cool the room.

[Effects of the Embodiment] As shown in the above embodiment, a structure in which the columnar distributor 9 is disposed in the cylindrical hole 8a provided on the center side of the cylindrical heat exchanger 8 is employed. Therefore, when the pipes for supplying and discharging the heat medium are connected to the distributor 9, the connecting portions are collectively arranged. As described above, since the connection portions of the respective pipes are collectively arranged in the distributor 9 on the center side of the heat exchanger 8, the connection of the pipes is simplified, and the substantial external dimensions of the heat exchange unit 2 can be reduced. Since a structure in which the distributor 9 is disposed in the cylindrical hole 8a provided on the center side of the cylindrical heat exchanger 8 is employed, the total distance of the sliding contact between the distributor 9 and the heat exchanger 8 is reduced. Therefore, the sliding contact resistance is reduced, and the rotational driving force of the heat exchanger 8 can be reduced. For this reason, the cost of the electric motor serving as the rotary drive source can be reduced, the power consumption can be reduced, and the running cost can be reduced.

The distributor 9 is composed of the first to third blocks 9a to 9c in which the fixed side supply / discharge holes A1 are formed, and the first and second joints 9d and 9e. When the method of supplying the heat medium to the side supply / discharge holes A2 is changed from parallel connection supply to series connection supply, or vice versa, only the first to third blocks 9a to 9c need to be changed.
The cost increase of the distributor 9 due to the change of the supply method can be suppressed as much as possible. Further, a high-temperature system is provided at one end of the distributor 9.
Since the pipe of the low-temperature heat medium is connected to the other end, it is possible to suppress a problem in which heat exchange occurs between the high-temperature heat medium and the low-temperature heat medium and heat loss occurs.

[Modification] In the above embodiment, the heat exchanger 8
Heat medium passage 1 in which the heat medium turns and returns inward on the outer peripheral side
Although the example of adopting the parallel connection supply type employing No. 1 is shown, a parallel connection supply type employing the heat medium passage 11 in which the heat medium does not turn may be employed as shown in FIG. Further, a series connection supply type as shown in FIGS. 12B and 12C or a hybrid type of a parallel connection supply and a series connection supply as shown in FIG. 12D may be adopted.
The series connection supply type as shown in FIG. 12 (b) includes three types of ring disks R2 to R3 shown in FIGS. 13 (a) to 13 (c) in which the position and presence or absence of the through hole A3 are different.
R4 can be realized in combination, and the hybrid type as shown in FIG. 12D has four types of rings (types in which the number, position, presence or absence of through holes A3 are different) shown in FIGS. It can be realized by combining the disks R1 to R4.

In the above embodiment, the cooling-only device has been described as an example, but it may be applied to a cooling-heating device. As a specific example, the heating water heated by the combustion device 3 may be guided to the indoor heat exchanger 23 of the indoor air conditioner 5 to perform indoor heating. Further, the heating water heated by the combustion device 3 may be connected to a floor heating mat, a bathroom dryer, or the like, and the heating water may be supplied to perform floor heating, bathroom heating, or the like. In the above embodiment, an example is shown in which a plurality of alloy containers are formed in the ring disk R in which the pair of plates 12 and 13 are joined. However, as shown in FIG. 15, one alloy container is formed by the pair of plates. May be provided. In other words, one alloy container is constituted by a pair of plates, they are combined in the circumferential direction to form a ring disk, and a plurality of ring disk R-shaped alloy containers are laminated in the axial direction to form a cylindrical heat container. The exchanger 8 may be configured. Further, in the above-described embodiment, an example in which the outer peripheral shape of the heat exchanger 8 is provided in a cylinder is shown. However, for example, the outer peripheral shape is provided in a hexagonal cylinder shape, and a rotation side supply / discharge hole A2 is formed in the center side. A cylindrical hole 8a may be provided.

In the above embodiment, the heat exchanger 8 is continuously rotated by the rotation driving means. However, the heat exchanger 8 may be rotated intermittently. In the above embodiment, an example is shown in which the rotation axis (distributor 9) of the heat exchanger 8 is arranged horizontally, but it may be arranged vertically or obliquely. Further, the first container S1, the second container S2, and the third container S3
May be modified so that the heat exchange unit is also effective for switching the heat medium that contacts each alloy container.

In the above embodiment, an example is shown in which the first container S1 whose temperature has been raised in the heating zone α1 has been cooled to increase the temperature (in the embodiment, pressurized water), as the heating medium for increasing the pressure. However, heating means (for example, temperature rise by a combustion device,
A heat medium whose temperature has been increased by an electric heater, a temperature increase using exhaust heat, or the like may be used. In the above embodiment, an example in which a two-stage cycle is used as an example of the heat exchange unit 2 has been described. However, the heat exchange unit 2 may be used in a one-stage cycle, or may be used as a three-stage cycle or more.

In the above embodiment, a multi-air conditioner in which a plurality of indoor air conditioners 5 can be connected to one outdoor unit 7 has been described, but an air conditioner in which one indoor air conditioner 5 is connected to one outdoor unit 7 is shown. The present invention may be applied. In the above-described embodiment, an example in which the room is cooled with the heat medium for cooling output (cooling output water in the embodiment) obtained by the heat exchange unit 2 has been described. The present invention may be used as another cooling device, for example, for use in a refrigeration operation. In the above embodiment, an example in which one heat exchange unit 2 (a unit constituted by one distributor 9 and one heat exchanger 8) is used, but a plurality of heat exchange units 2 are used.
To increase the cooling capacity, and may be used for a cooling device requiring a large cooling capacity such as a building air-conditioning system.

In the above embodiment, a gas combustion device for burning gas is used as a heating means for heating a heat medium for heating (heating water in this embodiment). Other combustion devices may be used, heating means for heating the heating medium for heating by exhaust heat of the internal combustion engine, steam by a boiler, heating means using an electric heater,
Other heating means may be used. When utilizing the exhaust heat of the internal combustion engine, it can also be used for vehicles. In the above embodiment, tap water was used as an example of each heating medium.
Another liquid heat medium such as antifreeze or oil may be used, or a gas heat medium such as air may be used. In the above embodiment, the cooling device that obtains a cold output by an endothermic action when the hydrogen storage alloy releases hydrogen is described as an example, but a heating apparatus that obtains a thermal output by a heat dissipation action when the hydrogen storage alloy absorbs hydrogen is described. The present invention may be applied to a device (for example, a heating device).

[Brief description of the drawings]

FIG. 1 is a sectional view and a side view of a distributor (Example).

FIG. 2 is a sectional view of a heat exchanger (Example).

FIG. 3 is an explanatory view showing a flow of a heat medium by a distributor (Example).

FIG. 4 is an explanatory diagram of a parallel connection supply and a series connection supply in a distributor (Example).

FIG. 5 is a plan view of a ring disk (Example).

FIG. 6 is an explanatory view of an alloy storage chamber and a heat medium passage (Example).

FIG. 7 is a plan view of a ring disk (Example).

FIG. 8 is an explanatory diagram showing a flow of a heat medium in the heat exchanger (Example).

FIG. 9 is an operation explanatory view of the heat exchange unit (embodiment).

FIG. 10 is a schematic configuration diagram of a cooling device (Example).

FIG. 11 is a PT refrigeration cycle diagram (Example).

FIG. 12 is an explanatory diagram showing a flow of a heat medium in a heat exchanger (modification).

FIG. 13 is a plan view of a ring disk (modification).

FIG. 14 is a plan view of a ring disk (modification).

FIG. 15 is a plan view of a ring disk (modification).

[Explanation of symbols]

 A1 Fixed side supply / discharge hole A2 Rotation side supply / discharge hole HM High temperature alloy (hydrogen storage alloy) MM Medium temperature alloy (hydrogen storage alloy) LM Low temperature alloy (hydrogen storage alloy) S1 First container (alloy container) S2 Second container (alloy) Container) S3 Third container (alloy container) 8 Heat exchanger 8a Cylindrical hole 9 Distributor 9a First block 9b Second block 9c Third block 9d First joint 9e Second joint

Claims (3)

[Claims] 1. A heat utilization system utilizing a hydrogen storage alloy utilizing heat absorption of hydrogen storage alloy during release of hydrogen or heat release during storage of hydrogen, wherein a fixed system for supplying and discharging a plurality of heat media is provided. A cylindrical distributor having a side supply / discharge hole formed on the outer peripheral surface; and a rotation side supply / discharge hole provided at the center for supplying and discharging a plurality of heat mediums while rotating around the distributor while sliding around the distributor. Heat exchange formed between the fixed side supply / discharge hole of the distributor through the rotation side supply / discharge hole and the hydrogen storage alloy housed therein is formed on the inner peripheral surface of the cylindrical hole. And a heat exchanger using the hydrogen storage alloy. 2. The heat utilization system using a hydrogen storage alloy according to claim 1, wherein the distributor has a plurality of cylindrical blocks having the fixed side supply / discharge holes formed therein, and a plurality of blocks between the plurality of blocks. A heat utilization system using a hydrogen storage alloy, comprising: a joint arranged between the blocks and twisting and changing the flow of the heat medium between the blocks. 3. A heat utilization system using a hydrogen storage alloy according to claim 1, wherein a pipe of a high-temperature heat medium is connected to one end of the distributor, and the other end of the distributor. Is a heat utilization system using a hydrogen storage alloy, characterized in that piping for a low-temperature heat medium is connected.