JP2003254499A - Hydrogen supplying station - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hydrogen supplying system for shortening waiting time required for an occlusion process and facilitating management of temperature and pressure in a tank. <P>SOLUTION: A plurality of MH tanks 11-14 filled with a hydrogen storage alloy are provided, and heat exchanging medium passages 61-64 are respectively provided in each MH tank 11-14. Each entrance of each heat exchanging medium passage 61-64 is communicated with a hot water tank 15 and a cold water tank 16 via outward route three way valves 31-34, a hot water outward route 51 and a cold water outward route 53. A tank of a small capacity of about 1.5 times of a common on-vehicle tank is used as each MH tank 11-14, and if hydrogen of about 80% of a maximum storage capacity of each tank is occluded, it can be supplied to the on-vehicle tank. In each MH tank 11-14, the occlusion process is carried out after the hydrogen is supplied to the on- vehicle tank of one vehicle. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a hydrogen supply station for supplying hydrogen as fuel to a fuel cell vehicle. More specifically, the present invention relates to a hydrogen supply station that uses a hydrogen storage alloy for a hydrogen storage tank.

[0002]

2. Description of the Related Art As a method for supplying hydrogen as a fuel to a fuel cell vehicle that generates energy for traveling by generating electricity from hydrogen as a fuel and oxygen in the air, a cylinder, a tank, etc. are loaded in the vehicle and used in a hydrogen supply station. There is a method of supplying hydrogen to the vehicle tank. Therefore, a hydrogen supply station such as a gas station is installed to generate and store hydrogen, and hydrogen is appropriately supplied to an in-vehicle tank of an automobile. As such a hydrogen supply station, one has been proposed in which hydrogen is generated from a natural gas or city gas by a reforming process and the generated hydrogen is stored in a large-capacity tank containing a hydrogen storage alloy.

In the hydrogen storage alloy, the relationship between the hydrogen storage amount and the hydrogen pressure changes greatly depending on the temperature (see FIG. 5). Therefore, in order to increase the efficiency in each process, a hydrogen storage tank containing a hydrogen storage alloy (hereinafter,
(Referred to as MH tank) is cooled, and the MH tank is heated during the discharging process. As shown in FIGS. 6 and 7, the conventional hydrogen supply station 100 includes a hot water tank 112 and a cold water tank 113, and appropriately supplies hot water or cold water to the MH tank 111 to control the temperature.

FIG. 6 shows that the hydrogen stored in the MH tank 111 is stored in the on-vehicle tanks 114 of four vehicles.
To 117 at the same time as the discharging process. In this process, from the hot water tank 112 to the MH tank 111, about 8
Warm water at 0 ° C is supplied to warm the water. At this time, if the vehicle-mounted tanks 114 to 117 also contain a hydrogen storage alloy, it is more efficient to cool the vehicle-mounted tanks 114 to 117 at the same time. On the other hand, in the storage process of storing the hydrogen generated in the reforming process in the MH tank 111, as shown in FIG. 7, cold water at about 20 ° C. is supplied from the cold water tank 113 to the MH tank 111 for cooling. As a result, more hydrogen is occluded efficiently. During this occlusion process, hydrogen cannot be supplied to the vehicle-mounted tanks 114 to 117.

[0005]

However, in the above-described conventional hydrogen supply station 100, a large-capacity M that can store hydrogen many times as much as the in-vehicle tanks 114 to 117 can store.
The H tank 111 is used. Therefore, hydrogen can be supplied to many on-vehicle tanks 114 to 117 one after another, but the time required for the occlusion process is long. For example, in a large tank with a hydrogen storage capacity of 15.6 Nm ³ , it takes about 65 minutes to store a hydrogen from a nearly empty state to a nearly full tank.
If a car arrives for hydrogen supply immediately after the occlusion process is started, there is a disadvantage that a long waiting time occurs.

In addition, the conventional hydrogen supply station 100
Then, in the release process, in order to increase the release rate, M
Hot water of about 80 ° C. is supplied to the H tank 111. However, if the temperature is rapidly heated to 80 ° C. while a considerable amount of hydrogen is stored, for example immediately after the end of the storage process, the internal pressure of the MH tank 111 may temporarily become high. A tank having an internal pressure of more than 1.0 MPaG is subject to the regulations of the High Pressure Gas Safety Law, and thus is troublesome to handle. Therefore, in the discharging process, the MH tank 111
The internal pressure is constantly measured by a pressure sensor, and when the internal pressure approaches 1.0 MPaG, the hot water supply is stopped or the cold water is temporarily supplied to slightly lower the temperature of the MH tank 111. Then, the internal pressure does not exceed 1.0 MPaG by slightly reducing the hydrogen release rate. As a result, as shown in FIG. 8, immediately after the start of the release process from the full state, the hydrogen release rate undulates. This complicates the control of temperature and pressure at the time of desorption, and there is a risk that the hydrogen desorption amount becomes unstable.

The present invention has been made to solve the problems of the above-described conventional hydrogen supply station. That is, the problem is to provide a hydrogen supply station that shortens the waiting time required for the occlusion process and facilitates management of the temperature and pressure in the tank.

[0008]

The hydrogen supply station of the present invention, which has been made for the purpose of solving this problem, is provided with a plurality of hydrogen storage tanks each containing a hydrogen storage alloy, and each hydrogen storage tank is provided with the hydrogen storage tank. A heat exchange medium flow path for circulating a heat exchange medium capable of exchanging heat with the storage alloy;
A heating medium supply passage for supplying a heat exchange medium for heating to each heat exchange medium passage, and a cooling medium supply passage for supplying a heat exchange medium for cooling to each heat exchange medium passage, It has a three-way valve that connects the heating medium supply flow path and the cooling medium supply flow path to the respective inlets of the heat exchange medium flow paths.

According to the hydrogen supply station of the present invention,
Each of the plurality of hydrogen storage tanks is provided with a heat exchange medium passage through which a heat exchange medium is circulated, and the inlet of each heat exchange medium passage is provided with a three-way valve to supply a heating medium supply passage and a cooling medium supply passage. It is connected to the flow channel. Therefore, the temperature of each of the hydrogen storage tanks is controlled independently. From this, it is possible to simultaneously perform the processes requiring different temperature states, that is, the occlusion process and the desorption process, in different hydrogen storage tanks. Therefore, it is possible to supply hydrogen to the vehicle-mounted tank of the vehicle in response to a request and store hydrogen in another tank, so that the waiting time of the vehicle can be shortened.

Further, the hydrogen supply station of the present invention is preferably an on-site device. It will be convenient for traveling vehicles if it is fixed like a gas station near a customer and installed so that it does not move.

Further, the hydrogen supply station of the present invention is
It is desirable that the maximum storage amount of each hydrogen storage tank be within a range of 1 to 2 times the maximum storage amount of the supply target tank. This is because each hydrogen storage tank can be supplied to each one supply target tank. Also,
If this range is more preferably 1.3 to 1.7 times, the hydrogen can be supplied to the supply target tank even in a state where the hydrogen storage tanks are not storing the maximum storage amount. Since each hydrogen storage tank has a high storage speed up to about 80% of the maximum storage amount, by setting the range of the maximum storage amount in this way, the waiting time for storage can be further shortened.

Further, another hydrogen supply station of the present invention is provided in the hydrogen storage tank containing the hydrogen storage alloy and the hydrogen storage tank, and the heat exchange medium for exchanging heat with the hydrogen storage alloy is circulated. An exchange medium flow path,
A heating medium supply passage for supplying a heat exchange medium for heating to the heat exchange medium passage, a cooling medium supply passage for supplying a heat exchange medium for cooling to the heat exchange medium passage, and a heating A three-way valve that connects the cooling medium supply channel and the cooling medium supply channel to the inlet of the heat exchange medium channel, and adjusts the three-way valve to provide a heat exchange medium for heating and a heat exchange medium for cooling. The temperature control means controls the temperature of the heat exchange medium supplied to the heat exchange medium flow path by mixing and supplying the heat exchange medium flow path to the heat exchange medium flow path.

According to the hydrogen supply station of the present invention,
The temperature control means controls the temperature of the heat exchange medium supplied to the heat exchange medium flow path. That is, the inlet of the heat exchange medium passage is connected to the heating medium supply passage and the cooling medium supply passage by the three-way valve, and the three-way valve is adjusted by the temperature control means. Thereby, the heat exchange medium having an optimum temperature between the temperature of the heat exchange medium for heating and the temperature of the heat exchange medium for cooling can be supplied according to the state of the hydrogen storage tank. For example, it is possible to perform control so as to prevent the pressure in the tank from changing beyond a proper range due to a rapid temperature change. This made it easier to control the temperature and pressure inside the tank.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments embodying the present invention will be described in detail with reference to the accompanying drawings. The present embodiment is a hydrogen supply station in which hydrogen produced from city gas or the like is stored in a tank (MH tank) containing a hydrogen storage alloy and the stored hydrogen is supplied to an in-vehicle tank as needed.

As shown in FIG. 1, the hydrogen supply station 1 includes a hydrogen gas production unit 10 and four MH tanks 1.
1 to 14, a hot water tank 15, and a cold water tank 16 are provided.
The production unit 10 is various devices for producing hydrogen from city gas or the like, and details thereof are omitted here. Each MH
Each of the tanks 11 to 14 is a tank for storing hydrogen which contains a hydrogen storage alloy. Here, each MH tank 1
As for 1 to 14, the conventional MH tank 111 is divided into a plurality of relatively small capacity tanks. The maximum storage amount of each of the MH tanks 11 to 14 is preferably set to a size corresponding to about 1.5 times the maximum storage amount of a general vehicle tank.

The warm water tank 15 is a tank filled with warm water of about 80 ° C. which is a heat exchange medium for heating. In the hot water tank 15, the hot water is always kept at about 80 ° C. The cold water tank 16 is a tank filled with cold water of about 20 ° C. which is a heat exchange medium for cooling. Cold water tank 16
Then, cold water is always kept at about 20 ° C.

Hydrogen inflow passages 41 to 44 and hydrogen outflow passages 45 to 48, which are hydrogen inflow and outflow passages, are connected to the MH tanks 11 to 14, respectively. Each hydrogen inflow path 41-4
4 is a hydrogen flow channel 40 via the on-off valves 21-24, respectively.
Is in communication with. The hydrogen flow path 40 is used in the manufacturing unit 10
It is connected to the. On-off valves 25 to 28 are connected to the hydrogen outflow passages 45 to 48, respectively, and communicated with the vehicle tanks 71 and 72 as needed.

The hot water tank 15 is connected with a hot water outgoing path 51 and a hot water return path 52, and the cold water tank 16 is connected with a cold water outgoing path 53 and a cold water return path 54. Hot water outbound route 51
Corresponds to the heating medium supply flow path. The cold water outward passage 53 corresponds to the cooling medium supply passage. Also, each MH tank 11 to 11
Heat exchange medium flow paths 61 to 64 are provided inside the respective units 14. The heat exchange medium passages 61 to 64 are for heating or cooling the hydrogen storage alloys inside the MH tanks 11 to 14 by circulating hot water or cold water.

The hot water outward passage 51 and the cold water outward passage 53 are connected to the respective inlets of the heat exchange medium passages 61 to 64 of the respective MH tanks 11 to 14 by the outward passage three-way valves 31 to 34. The hot water return passage 52 and the cold water return passage 54 are connected to the heat exchange medium passages 61 to 61 of the MH tanks 11 to 14 by the return passage three-way valves 35 to 38.
It is connected to each of the 64 outlets. Outward three-way valve 31-34
The return three-way valves 35 to 38 are 3-port control valves capable of controlling the flow rate as well as switching the flow paths.

In the hydrogen supply station 1, the MH tanks 11 to 14 are independently constructed. As shown in FIG. 2, the controller 17 controls the opening / closing valves 21 to 28, the outward three-way valves 31 to 34, the return three-way valves 35 to 38, and the switches 65 to 65 provided for the respective MH tanks 11 to 14.
68 is controlled. The switches 65 to 68 are for detecting that the in-vehicle tank 71 or the like is connected and hydrogen release is requested. From these, the controller 17 can independently control the temperature of the hydrogen storage alloy and the flow control of hydrogen for each of the MH tanks 11 to 14. Therefore, different processes can be simultaneously executed in the MH tanks 11 to 14.

FIG. 1 shows the MH tanks 12, 14
Is in communication with the manufacturing unit 10 and is executing the occlusion process, and the MH tanks 11 and 13 are in the process of executing the release process of supplying hydrogen to the vehicle tanks 71 and 72. That is, in the MH tanks 12 and 14, the opening / closing valves 22 and 24 are opened, hydrogen is flowing from the hydrogen flow passage 40, and the opening / closing valves 26 and 28 are closed. In addition, the MH tank 11,
13, the on-off valves 25 and 27 are opened and the vehicle tank 7
1, 72 are in communication with each other, and the on-off valves 21, 23 are closed to prevent backflow of hydrogen.

FIG. 3 shows the results of the hydrogen storage characteristics of the hydrogen storage alloys measured by the present inventors. FIG. 3 is a graph showing the relationship between the time from the start of storage and the storage amount for a conventional large tank with a hydrogen storage amount of 15.6 Nm ³ . Here, the solid line 81 and the broken line 82 are the results when the initial pressures are different. The solid line 81 has a smaller initial pressure and the amount of hydrogen stored at the start stage of the experiment is smaller. From the results of FIG. 3, the following can be seen. The hydrogen storage alloy stores about 80% of the maximum storage amount in about 20 minutes from the start of storage. This corresponds to about one-third of the total storage time. After that, the remaining 20% of hydrogen is stored over 40 minutes. Here, the temperature of the hydrogen storage alloy during storage was set to 20 ° C. Further, the solid line 81 having a smaller initial pressure had a better rise and a larger total storage amount.

Further, FIG. 4 shows the results of measurement of hydrogen release characteristics of the hydrogen storage alloy by the present inventors. Similar to FIG. 3, FIG. 4 is a measurement of a conventional large tank having a hydrogen storage capacity of 15.6 Nm ³ , and is a graph showing the relationship between the time from the start of the release and the release amount. Similar to Figure 3,
The solid line 83 and the broken line 84 are the results when the initial pressure at the discharge destination is different. The following can be seen from the results of FIG. The hydrogen storage alloy releases about 80% of the maximum storage amount in about 10 minutes from the start of release. This corresponds to about 1/6 of the total storage time. Compared with the occlusion process of FIG. 3, it can be seen that the substance is released in a very short time. Here, the temperature of the hydrogen storage alloy at the time of release was set to 80 ° C.
Further, the solid line 83 having a smaller initial pressure had a better rise and a larger total release amount.

The graphs of FIGS. 3 and 4 show the results of experiments on conventional large-sized tanks.
The relationships 1 to 14 show almost the same relationship. That is,
The time required to store about 80% of the maximum storage amount is about one-third of the total storage time. Furthermore, the maximum storage capacity is 8
The time required for releasing about 50% is half that, that is, about 1/6 of the total storage time. It was also found that these times did not differ much with respect to the difference in initial pressure. That is, it can be said that even if some amount of hydrogen remains in the MH tanks 11 to 14 at the time of occlusion and the vehicle-mounted tanks 71 and 72 at the discharge destination, there is no great difference.

Based on these experimental results, the optimum operation method of the hydrogen supply station 1 will be described. In the hydrogen supply station 1, in the occlusion process of each of the MH tanks 11 to 14, first, up to about 80% of the maximum occlusion amount is occlusion. This range is a partial range in which the storage speed is fast as shown in FIG. And, if there is a request, the car 1
Hydrogen is supplied to the vehicle tanks for each vehicle. Each MH tank 1
Since the maximum storage amount of 1 to 14 is about 1.5 times the maximum storage amount of the vehicle-mounted tank, about 80% of this corresponds to about 1.2 times that of the vehicle-mounted tank. The supply amount to the vehicle-mounted tank is the maximum storage amount of the vehicle-mounted tank of the vehicle even at the maximum, and one MH tank 11 to 14 is sufficient. 1
Immediately after the supply to the on-board tank for the vehicle is completed, the occlusion process immediately starts and the maximum occlusion amount is about 80%. Unless there is a demand for hydrogen supply by automobile, each MH tank 11-1
The storage process may be further continued to 4 to store up to the maximum storage amount.

The present inventors further confirmed that the maximum storage amount 3.1
When an occlusion experiment was conducted in a Nm ³ MH tank, the occlusion time up to the maximum occlusion amount was about 19 minutes. The time required to store up to about 80% is about one-third, about 6
~ 7 minutes. In this way, if the capacity of the tank is small, the storage time can be shortened accordingly. Considering the situation such as the size of a general vehicle tank, MH of appropriate capacity
By selecting the tanks 11 to 14, the waiting time for occlusion can be made extremely shorter than that of the conventional one. Moreover, since the MH tanks 11 to 14 are provided independently of each other, the discharging process and the occlusion process can be sequentially performed as the vehicle arrives.

Next, a method for controlling the temperature of the MH tanks 11 to 14 in the hydrogen supply station 1 will be described. The relationship between the hydrogen storage amount of the hydrogen storage alloy and the hydrogen pressure changes with temperature, as shown in FIG. As described in the prior art, when a hydrogen storage alloy in a state in which a considerably large amount of hydrogen is stored is rapidly raised to 80 ° C. for release, the pressure rises sharply. For example, the state changes from point c to point d in FIG. 5, and since the pressure exceeds 1.0 MPaG, it is subject to legal regulation. On the other hand, in the hydrogen supply station 1 of the present embodiment, the controller 17 controls the outward three-way valves 31 to 34, so that cold water and hot water are mixed and the heat exchange medium flow paths 61 to 61 of the MH tanks 11 to 14 are mixed. 64 can be supplied.

Therefore, at the same time as the start of the discharging process, the controller 17 operates the outward three-way valves 31 to 34 to supply the hot water to the MH tanks 11 to 14 which had been kept at 20 ° C. by supplying only the cold water until then. Mix and supply. Further, the mixing ratio of warm water is gradually increased as the release of hydrogen progresses. As a result, the temperature of the hot water supplied to the heat exchange medium passages 61 to 64 of the MH tanks 11 to 14 can be gradually increased, and the temperature of the hydrogen storage alloy can be increased without increasing the pressure sharply. For example, as shown in FIG. 5, the state can be changed from point c to point d '.

Alternatively, when hydrogen is released during the release process and the hydrogen storage alloy having a small amount of remaining hydrogen is rapidly cooled to 20 ° C. for the storage process, the pressure drops sharply.
For example, the state changes from point a to point b in FIG. 5, resulting in a negative pressure state. On the other hand, in the hydrogen supply station 1 of the present embodiment, the controller 17 controls the outward three-way valves 31 to 34 to mix hot water and cold water, and each M.
It can be supplied to the heat exchange medium channels 61 to 64 of the H tanks 11 to 14. For example, as shown in FIG. 5, it is possible to gradually cool from the point a to the point b '.

The controller 17 for controlling the temperature of the water as the heat exchange medium corresponds to the temperature control means. The controller 17 opens in the storage device the desired three-way valves 31 to 34 corresponding to the time from the start of release or the start of storage, or the desired temperature or the corresponding amount of released hydrogen or stored hydrogen. Remember the degree as a procedure. Then, the outward three-way valves 31 to 34 are controlled in accordance with the stored procedure at the start of the discharging process or the occlusion process.
Therefore, since it is not necessary to measure the internal pressure of each of the MH tanks 11 to 14, a pressure sensor is not required, and the temperature can be easily controlled. In addition, the return three-way valve 35-38
Are heat exchange medium flow paths 61 to 6 of the MH tanks 11 to 14.
The heat exchange medium (here, a mixture of hot water and cold water) that has passed through 4 is controlled to be returned to the hot water tank 15 or the cold water tank 16 whichever has the closest temperature.

As described in detail above, according to the hydrogen supply station 1 of the present embodiment, each MH tank 11
14 to 14 are independently provided, and temperature control is possible for each, so that the occlusion process and the evacuation process can be simultaneously executed in different tanks. Further, since each MH tank 11 to 14 is about 1.5 times as large as a general vehicle tank, if about 80% of the maximum storage amount of hydrogen is stored, the supply amount to one vehicle tank can be increased. Can be covered. In the occlusion process, first, about 8 times the occlusion capacity of each MH tank 11-14 is stored.
Because it occludes the crack, it can occlude in a short time. Therefore, the waiting time of the car for storage is shortened. Further, the hot water outgoing path 51 and the cold water outgoing path 53 are connected to the MH tanks 11 to 14 respectively.
Since the heat exchange medium passages 61 to 64 are connected to the outward three-way valves 31 to 34, hot water and cold water can be mixed and supplied to the heat exchange medium passages 61 to 64. The controller 17 follows the stored procedure to set the outward three-way valves 31 to 34.
Since the temperature is controlled by operating, the pressure sensor is not necessary, and the temperature control of each MH tank 11-14 is easy.

The present embodiment is merely an example and does not limit the present invention. Therefore, naturally, the present invention can be variously improved and modified without departing from the gist thereof. For example, MH tanks 11-14
The number of stations is not limited to four, but 2-3 in small stations
It may be one, or five or more. Also, MH
Although all of the tanks 11 to 14 have the same size, a plurality of types of tanks having different sizes such as those for small cars and those for large cars may be provided. Although the temperature of the heat exchange medium in which hot water and cold water are mixed is gradually changed, the temperature is changed to a temperature just before the limit (for example, about 30 ° C in the occlusion process and about 50 ° C in the ejection process), and then a little. It can also be changed step by step or step by step. Although the return path of the heat exchange medium is returned to the side closer to the temperature, it may be divided into the hot water return path 52 and the cold water return path 54 by the return path three-way valves 35 to 38, or may be always returned to the same side. I don't care.

[0033]

As is apparent from the above description, according to the present invention, it is possible to provide a hydrogen supply station which shortens the waiting time required for the occlusion process and facilitates the control of the temperature and pressure in the tank. it can.

[Brief description of drawings]

FIG. 1 is a block configuration diagram of a hydrogen supply station of the present embodiment.

FIG. 2 is an electrical block configuration diagram of a hydrogen supply station according to the present embodiment.

FIG. 3 is a graph showing the hydrogen storage characteristics of the MH tank.

FIG. 4 is a graph showing the hydrogen release characteristics of the MH tank.

FIG. 5 is a graph showing the relationship between hydrogen storage amount and hydrogen pressure in the MH tank.

FIG. 6 is a block diagram of a conventional hydrogen supply station.

FIG. 7 is a block diagram of a conventional hydrogen supply station.

FIG. 8 is a graph showing hydrogen release characteristics of a conventional hydrogen supply station.

[Explanation of symbols]

1 Hydrogen supply station 11-14 MH tank 15 Hot water tank 16 Cold water tank 17 Controller 31-34 Forward three-way valve 51 Hot water outbound route 53 Cold water outbound route 61-64 heat exchange medium flow path 71,72 In-vehicle tank

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) F17D 3/10 F17D 3/10 (72) Inventor Koichi Kuzuyama 19-18 Sakurada-cho, Atsuta-ku, Nagoya-shi, Aichi F-term in Toho Gas Co., Ltd. (reference) 3E072 EA10 3J071 AA02 BB14 CC03 CC13 DD04 DD28 DD29 EE02 FF03 FF15 4G140 AA16 AA17

Claims (4)

[Claims] 1. A plurality of hydrogen storage tanks each containing a hydrogen storage alloy, and a heat exchange medium flow path which is provided for each hydrogen storage tank and which circulates a heat exchange medium capable of exchanging heat with the hydrogen storage alloys. A heating medium supply passage for supplying a heat exchange medium for heating to each heat exchange medium passage, and a cooling medium supply passage for supplying a heat exchange medium for cooling to each heat exchange medium passage And a three-way valve that connects the heating medium supply passage and the cooling medium supply passage to respective inlets of the heat exchange medium passages. 2. The hydrogen supply station according to claim 1, wherein the hydrogen supply station is an on-site device. 3. The hydrogen according to claim 1 or 2, wherein the maximum storage amount of each of the hydrogen storage tanks is within a range of 1 to 2 times the maximum storage amount of the supply target tank. Supply station. 4. A hydrogen storage tank containing a hydrogen storage alloy, a heat exchange medium flow path which is provided in the hydrogen storage tank, and through which a heat exchange medium capable of exchanging heat with the hydrogen storage alloy flows. A heating medium supply passage for supplying a heat exchange medium for heating to the medium passage, a cooling medium supply passage for supplying a heat exchange medium for cooling to the heat exchange medium passage, and the heating Medium supply passage and the cooling medium supply passage, and a three-way valve connecting the inlet of the heat exchange medium passage, and a heat exchange medium for heating and a heat exchange for cooling by adjusting the three-way valve. A hydrogen supply station, comprising: a temperature control means for controlling the temperature of the heat exchange medium supplied to the heat exchange medium channel by mixing the medium and supplying the mixture to the heat exchange medium channel. .