Hydrogen side gas-liquid separation device, fuel cell system and vehicle

Abstract

The utility model provides a hydrogen side gas-liquid separation device, a fuel cell system and a vehicle, and the hydrogen side gas-liquid separation device comprises a water receiving box connected below a hydrogen pump and a water segregator connected below the water receiving box, an air inlet channel communicated with an inlet of the hydrogen pump is formed in the water segregator and the water receiving box; the device further comprises a connecting pipe connected between the water receiving box and the water segregator, the top end of the connecting pipe is communicated with the interior of the water receiving box and is arranged close to the bottom of the water receiving box, and the bottom end of the connecting pipe is communicated with a liquid storage cavity located in the bottom of the water segregator. According to the hydrogen side gas-liquid separation device disclosed by the utility model, on the premise of ensuring enough water separation capacity, liquid water can be effectively prevented from entering the hydrogen pump for the second time along with airflow, so that the risk of freezing of the hydrogen pump can be reduced, the service life of the hydrogen pump is prolonged, and the hydrogen side gas-liquid separation device has a very good use effect.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cells, and in particular to a hydrogen side gas-liquid separation device. The utility model also relates to a fuel cell system provided with the gas-liquid separation device. At the same time, the utility model also relates to a vehicle provided with the fuel cell system. Background Art

[0002] The hydrogen circuit of the fuel cell system mostly adopts the hydrogen reflux method, and the unconsumed hydrogen discharged from the anode of the fuel cell is re-supplied to the stack by using a hydrogen circulation pump (referred to as "hydrogen pump") or an ejector to improve the utilization rate of hydrogen. Due to the huge difference in density between liquid water and gas, it may block the reaction channel of the fuel cell after entering the stack, causing the stack to fail to work properly. Therefore, a gas-liquid separation device is usually arranged at the hydrogen outlet to separate and discharge the liquid water in the gas-liquid mixture of the stack to prevent the liquid water from circulating into the stack.

[0003] The water separation capacity of the traditional gas-liquid separator meets the development requirements under bench conditions. However, during the operation of the entire vehicle, a large amount of liquid water still enters the hydrogen pump, causing the residual liquid water in the hydrogen circulation pump to freeze at low temperatures.

[0004] At present, during the operation of the whole vehicle, liquid water still enters the hydrogen pump, causing the residual liquid water in the hydrogen circulation pump to freeze at low temperatures. Therefore, it is urgent to develop a gas-liquid separation device to prevent liquid water from entering the hydrogen pump. Utility Model Content

[0005] In view of this, the utility model aims to provide a gas-liquid separation device to prevent liquid water from being carried into the hydrogen pump with the air flow for a second time while ensuring sufficient water separation capacity.

[0006] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0007] A hydrogen-side gas-liquid separation device, comprising a water receiving box connected below a hydrogen pump, and a water separator connected below the water receiving box, wherein the water separator and the water receiving box form an air inlet channel for communicating with an inlet of the hydrogen pump;

[0008] It also includes a connecting pipe connected between the water receiving box and the water distributor, the top of the connecting pipe is connected to the water receiving box and is arranged close to the bottom of the water receiving box, and the bottom end of the connecting pipe is connected to the liquid storage cavity located at the bottom of the water distributor.

[0009] Furthermore, the connecting pipe is a hose.

[0010] Furthermore, the cross-sectional area of ​​the connecting pipe is smaller than the cross-sectional area of ​​the air inlet passage in the water receiving box.

[0011] Furthermore, a connecting cavity connected to the liquid storage cavity is provided at the bottom of the water divider, and the bottom end of the connecting pipe is connected to the liquid storage cavity through the connecting cavity; a unidirectional conductive member is provided on the connecting pipe, and the unidirectional conductive member is unidirectionally conductive in the direction pointing to the connecting cavity.

[0012] Furthermore, the one-way conductive member is located at the bottom end of the connecting pipe.

[0013] Furthermore, the box body of the water receiving box and the shell of the water distributor are integrally formed, and a connecting pipe is provided between the box body of the water receiving box and the shell of the water distributor, and the air inlet channel is formed in the connecting pipe.

[0014] Furthermore, a plurality of gas-liquid separation parts are provided in the water separator; the plurality of gas-liquid separation parts are arranged at intervals along the air inlet direction in the water separator, and at least a portion of the air inlet channel in the water separator is limited to extend in an "S" shape.

[0015] Furthermore, each of the gas-liquid separation parts includes a gas-liquid separation plate; one end of each of the separation plates is connected to the inner wall of the water divider, and the other end extends laterally toward the longitudinal center of the water divider, and at least a portion of each of the separation plates is arranged to gradually decline along the longitudinal center direction of the water divider.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The hydrogen-side gas-liquid separation device described in the utility model can ensure sufficient water separation capacity through a water receiving box arranged below the hydrogen pump, a water separator connected to the water receiving box below the water receiving box, and a connecting pipe connected between the water receiving box and the water separator, and can effectively suppress liquid water from being carried into the hydrogen pump with the airflow for a second time when the liquid level in the liquid storage chamber changes due to vehicle acceleration or tilt, thereby reducing the risk of hydrogen pump freezing, increasing the service life of the hydrogen pump, and having a good use effect.

[0018] In addition, the connecting pipe adopts a hose, which can facilitate the arrangement and installation of the connecting pipe. The cross-sectional area of ​​the connecting pipe is smaller than the cross-sectional area of ​​the air inlet channel in the water receiving box, so that a gas flow dead zone can be formed between the connecting pipe and the liquid storage chamber of the water receiving box and the water distributor, thereby effectively preventing the liquid in the liquid storage chamber from flowing back into the hydrogen pump. The one-way conducting member is arranged on the connecting pipe, and the one-way conducting member is one-way conducting in the direction pointing to the connecting chamber, which can effectively prevent the water in the liquid storage chamber from flowing back into the hydrogen pump under any operating conditions. The bottom end of the connecting pipe where the one-way conducting member is arranged is conducive to the arrangement and installation of the one-way conducting member.

[0019] Secondly, the water receiving box body and the water distributor shell are integrally formed, which has the characteristics of simple structure, low cost and easy processing and preparation. In addition, the setting of the connecting pipe is conducive to the connection between the water receiving box body and the water distributor shell. The multiple gas-liquid separation parts in the water distributor can effectively ensure sufficient gas-liquid separation capacity.

[0020] In addition, multiple gas-liquid separation parts all use gas-liquid separation plates, which have a simple structure, mature technology and are easy to design and implement. One end of each separation plate is connected to the inner wall of the water divider, and the other end extends laterally toward the longitudinal center of the water divider, and at least part of each separation plate is arranged downwardly along the longitudinal center direction of the water divider, thereby allowing the airflow entering the water divider to collide with the gas-liquid separation plate multiple times during the flow process, so that the droplets in the airflow adhere to the gas-liquid separation plate, and can flow into the liquid storage cavity along the gas-liquid separation plate and the inner wall of the water divider, thereby effectively separating the droplets in the airflow.

[0021] Another object of the present invention is to provide a fuel cell system, wherein the fuel cell system is provided with the hydrogen-side gas-liquid separation device as described above.

[0022] Another object of the present invention is to provide a vehicle, on which the above-mentioned fuel cell system is provided.

[0023] The fuel cell system and vehicle of the utility model, by adopting the above-mentioned hydrogen-side gas-liquid separation device, can not only ensure sufficient water separation capacity, but also effectively suppress droplets from being carried into the hydrogen pump along with the airflow when the liquid level in the liquid storage chamber changes due to vehicle acceleration or tilt, thereby reducing the risk of hydrogen pump freezing, increasing the service life of the hydrogen pump, and further improving the performance of the fuel cell system and the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0025] Figure 1 This is a schematic structural diagram of the hydrogen side gas-liquid separation device according to an embodiment of the utility model;

[0026] Description of reference numerals:

[0027] 1. Hydrogen pump; 2. Water receiving box; 3. Water distributor; 4. Connecting pipe; 5. One-way guide piece;

[0028] 31. Liquid storage chamber; 32. Water separation chamber; 33. Communication chamber; 34. Communication pipe; 35. Gas-liquid separation plate;

[0029] 10. Water distributor inlet; 20. Gas outlet; 30. Liquid outlet; 40. Air inlet passage. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0031] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0033] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0034] Embodiment 1

[0035] The present embodiment relates to a hydrogen-side gas-liquid separation device, which can prevent liquid water from being carried into the hydrogen pump with the gas flow for a second time while ensuring sufficient water separation capacity.

[0036] In terms of overall structure, the hydrogen side gas-liquid separation device of this embodiment is as follows: Figure 1 As shown, it includes a water receiving box 2 for connecting to the bottom of the hydrogen pump 1, a water separator 3 connected to the bottom of the water receiving box 2, and a connecting pipe 4 connected between the water receiving box 2 and the water separator 3, wherein the water separator 3 and the water receiving box 2 form an air inlet channel 40 for communicating with the inlet of the hydrogen pump 1. In addition, the top end of the connecting pipe 4 is connected to the inside of the water receiving box 2 and is arranged close to the bottom of the water receiving box 2, and the bottom end of the connecting pipe 4 is connected to the liquid storage chamber 31 located at the bottom of the water separator 3.

[0037] At this time, the water separator 3 provided can ensure sufficient water separation capacity. The water receiving box 2 provided between the water separator 3 and the hydrogen pump 1 can flow to the bottom of the water receiving box 2 along the side wall of the water receiving box 2 under the action of gravity of the liquid water when the liquid level in the liquid storage chamber 31 changes and causes part of the liquid water in the liquid storage chamber 31 to enter the water receiving box 2, and then return to the liquid storage chamber 31 at the bottom of the water separator 3 through the connecting pipe 4. Thus, it can effectively inhibit the liquid water from being carried into the hydrogen pump 1 for the second time with the air flow, thereby reducing the risk of freezing of the hydrogen pump 1 and improving the service life of the hydrogen pump 1.

[0038] Based on the above overall structure, in detail, as a preferred embodiment, continue to refer to Figure 1 As shown, in this embodiment, the water divider 3 has a liquid storage chamber 31 and a water divider chamber 32, the water divider chamber 32 is connected to the liquid storage chamber 31, and is located above the liquid storage chamber 31. In addition, the water divider 3 is provided with a water divider inlet 10 and a liquid discharge port 30, the water divider 3 inlet is located at the side of the water divider 3 and is arranged near the bottom of the water divider 3, and the water divider inlet 10 is connected to both the liquid storage chamber 31 and the water divider chamber 32. The liquid discharge port 30 is arranged at the bottom of the liquid storage chamber 31, so as to facilitate the liquid in the liquid storage chamber 31 to be discharged through the liquid discharge port 30.

[0039] Moreover, in this embodiment, a plurality of gas-liquid separation parts are provided in the water separator 3, that is, a plurality of gas-liquid separation parts are provided in the water separation chamber 32. The plurality of gas-liquid separation parts are arranged at intervals along the air inlet direction in the water separator 3, and at least part of the air inlet channel 40 in the water separator 3 is limited to extend in an "S" shape. As a result, the airflow flowing into the water separator 3 from the inlet of the water separator 3 flows along the "S" shape under the action of the plurality of gas-liquid separation parts, so as to facilitate the separation of liquid droplets in the airflow into the liquid storage chamber 31, and can effectively ensure sufficient gas-liquid separation capacity.

[0040] It should be noted that the above-mentioned air intake direction specifically refers to Figure 1 In the state shown, the height direction of the water separator 3 is 40. And the multiple gas-liquid separation parts are arranged at intervals, so that the air inlet channel 40 in the water separator 3 is in a zigzag shape with multiple "S" connected end to end.

[0041] Specifically, in this embodiment, each gas-liquid separation part includes a gas-liquid separation plate 35, and one end of each separation plate is connected to the inner wall of the water separator 3, and the other end extends laterally toward the longitudinal center of the water separator 3, and at least part of each separation plate is gradually inclined downward in the direction pointing to the longitudinal center of the water separator 3. As a result, the airflow entering the water separator 3 collides with the gas-liquid separation plate 35 multiple times during the flow process, so that the droplets in the airflow adhere to the gas-liquid separation plate 35, and can flow into the liquid storage chamber 31 along the gas-liquid separation plate 35 and the inner wall of the water separator 3, so that the droplets in the airflow can be effectively separated.

[0042] Still viewing Figure 1As shown, gas-liquid separation plates 35 are respectively provided on the two opposite inner walls of the water separator 3. To facilitate a better understanding of the present solution, in this embodiment, the gas-liquid separation plates 35 provided on the two opposite inner walls are respectively defined as the first gas-liquid separation plate and the second gas-liquid separation plate. In this embodiment, the first gas-liquid separation plate and the second gas-liquid separation plate are both arranged in a plurality of intervals along the height direction of the water separator 3. One end of each first gas-liquid separation plate and each second gas-liquid separation plate is connected to the inner wall of the water separator 3, and the other end extends laterally toward the longitudinal center of the water separator 3, and is gradually inclined downward in the direction pointing to the longitudinal center of the water separator 3. In addition, the first gas-liquid separation plate 35 and the second gas-liquid separation plate 35 relative to each other are located at different heights, so that the air inlet channel 40 in the water separator 3 is limited to extend in an "S" shape.

[0043] The water receiving box 2 of this embodiment is structurally provided with a connection port at the bottom of the water receiving box 2 to facilitate the installation of the connecting pipe 4, and a gas outlet 20 is also provided at the top of the water receiving box 2, and the gas outlet 20 is connected to the inlet of the hydrogen pump 1 to provide clean and dry hydrogen to the hydrogen pump 1. In addition, in this embodiment, the cavity above the liquid storage cavity of the water separator 3 and the interior of the water receiving box 2 are formed with an air inlet channel 40 for communicating with the inlet of the hydrogen pump.

[0044] As a preferred implementation of this embodiment, in this embodiment, the connecting pipe 4 connected between the water receiving box 2 and the water distributor 3 is preferably a hose, so that the arrangement and installation of the connecting pipe 4 can be facilitated. Among them, the connecting pipe 4 can be any existing hose, such as a plastic hose or a rubber hose. Moreover, in the specific implementation, when the top end of the connecting pipe 4 is connected to the interface on the water receiving box 2, and when the bottom end of the connecting pipe 4 is connected to the interface at the bottom of the water distributor 3, a clamp can be used to clamp the end of the connecting pipe 4 to the interface of the water receiving box 2 and the interface at the bottom of the water distributor 3.

[0045] In this embodiment, as a preference, the cross-sectional area of ​​the connecting pipe 4 is smaller than the cross-sectional area of ​​the air inlet channel 40 in the water receiving box 2, so that a gas flow dead zone can be formed between the connecting pipe 4 and the water receiving box 2 and the liquid storage chamber 31 of the water separator 3, thereby effectively preventing the liquid in the liquid storage chamber 31 from flowing back into the hydrogen pump 1. In this embodiment, the diameter of the connecting pipe 4 is between 4mm and 6mm. In specific implementation, the diameter of the connecting pipe 4 can be set to 4mm, 5mm or 6mm, etc., and is preferably set to 5mm.

[0046] As a further preferred embodiment, in this embodiment, a connecting cavity 33 communicating with the liquid storage cavity 31 is also provided at the bottom of the water separator 3, the bottom end of the connecting pipe 4 is communicated with the liquid storage cavity 31 through the connecting cavity 33, and a one-way conducting member 5 is provided on the connecting pipe 4, and the one-way conducting member 5 is one-way conducting in the direction pointing to the connecting cavity 33. At this time, the one-way conducting member 5 is provided so that the liquid accumulated in the connecting pipe can only flow into the connecting cavity 33, and can also prevent backflow, so that the liquid water in the liquid storage cavity 31 will not flow back into the hydrogen pump 1 through the connecting pipe 4 under any operating conditions.

[0047] Specifically, the liquid storage chamber 31 and the connecting chamber 33 can be connected, for example, through a connecting hole formed on the water divider shell. Alternatively, the liquid storage chamber 31 and the connecting chamber 33 are separated from each other at the bottom of the water divider 3 by a connecting plate with mesh holes, so that the liquid storage chamber 31 and the connecting chamber 33 are connected. In this embodiment, as a preference, the one-way conductive member 5 is located at the bottom end of the connecting pipe 4, which can facilitate the arrangement and installation of the one-way conductive member 5. Moreover, in this embodiment, the connecting pipe 4 is specifically connected to the top of the shell forming the connecting chamber 33, so that after the connecting pipe 4 is installed, the connecting pipe 4 can be prevented from having a bending part, so as to ensure the use effect. And the one-way conductive member 5 is arranged at the bottom end of the connecting pipe 4, which can be easily installed and fixed.

[0048] The one-way conducting member 5 of the present embodiment structurally comprises an openable and closable sealing plate arranged at the bottom end of the connecting tube 4, and a spring is provided between the sealing plate and the connecting tube 4. Under the action of the spring, the sealing plate is kept in a sealing state of blocking the connecting tube 4, and under the action of the gravity of the liquid in the connecting tube 4, after overcoming the elastic force of the spring, the sealing plate can be in an open state of releasing the blocking of the connecting tube 4.

[0049] It should be noted that, in addition to the above-mentioned structural form, the one-way conducting member 5 may also adopt other components having a working principle similar to that of a one-way valve so as to prevent backflow.

[0050] As a preferred implementation of this embodiment, in this embodiment, the box body of the water receiving box 2 and the shell of the water distributor 3 are integrally formed, and a connecting pipe 34 is provided between the box body of the water receiving box 2 and the shell of the water distributor 3, and an air inlet channel 40 is formed in the connecting pipe 34. The box body of the water receiving box 2 and the shell of the water distributor 3 are integrally formed, which has a simple structure, low cost and is easy to process and prepare. The provision of the connecting pipe 34 is also conducive to the connection between the box body of the water receiving box 2 and the shell of the water distributor 3.

[0051] In the structure of the hydrogen-side gas-liquid separation device of this embodiment, the main flow area of ​​the airflow is formed above the liquid storage chamber 31 of the water separator 3, between the connecting pipe 34 and the inlet of the hydrogen pump 1. Since the cross-sectional area of ​​the connecting pipe 4 is smaller than the cross-sectional area of ​​the air inlet channel 40 in the water receiving box 2, the flow area is reduced, the fluid velocity is increased, and the flow resistance is proportional to the square of the velocity, so the resistance is also greatly increased. At this time, a flow dead zone of the airflow is formed between the water receiving box 2, the connecting pipe 4 and the connecting chamber 33 at the bottom of the water separator 3.

[0052] In the main flow area, the liquid water carried by the airflow is separated by the gas-liquid separation plate 35, and flows into the liquid storage chamber 31 along the inner wall of the water separation chamber 32 and the gas-liquid separation plate 35. The liquid water carried by the secondary flow moves along the wall of the connecting pipe 34 due to gravity, enters the water receiving box 2, and then returns to the liquid storage chamber 31 again through the connecting pipe 4 at the bottom of the water receiving box 2. The separated hydrogen enters the hydrogen pump through the upper cavity in the water receiving box 2, so that the liquid water carried by the secondary flow can be effectively prevented from entering the hydrogen pump 1.

[0053] In addition, it is worth noting that the water receiving box 2 and the connecting pipe 4 provided in this embodiment prevent air flow from passing through even when there is no liquid water in the liquid storage chamber 31 of the water distributor 3. The one-way conducting member 5 provided in this embodiment is provided to prevent liquid water from flowing into the hydrogen pump 1 through the connecting pipe 34 in the reverse direction under extremely severe conditions.

[0054] Embodiment 2

[0055] This embodiment relates to a fuel cell system, in which the hydrogen-side gas-liquid separation device described in the first embodiment is provided.

[0056] At the same time, this embodiment also relates to a vehicle, on which the above-mentioned fuel cell system is provided.

[0057] The fuel cell system and vehicle of this embodiment adopt the hydrogen-side gas-liquid separation device of the first embodiment.

[0058] The fuel cell system and vehicle of this embodiment, by adopting the hydrogen-side gas-liquid separation device of the first embodiment, can not only ensure sufficient water separation capacity, but also effectively suppress droplets from being carried into the hydrogen pump 1 along with the airflow when the liquid level in the liquid storage chamber 31 changes due to vehicle acceleration or tilt, thereby reducing the risk of hydrogen pump 1 freezing, increasing the service life of the hydrogen pump 1, and further improving the performance of the fuel cell system and the vehicle.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydrogen side gas-liquid separation device, characterized in that: It comprises a water receiving box (2) for connecting to the bottom of a hydrogen pump (1), and a water separator (3) connected to the bottom of the water receiving box (2), wherein an air inlet passage (40) for communicating with the inlet of the hydrogen pump (1) is formed in the water separator (3) and the water receiving box (2); It also comprises a connecting pipe (4) connected between the water receiving box (2) and the water distributor (3), the top end of the connecting pipe (4) being in communication with the inside of the water receiving box (2) and being arranged close to the bottom of the water receiving box (2), the bottom end of the connecting pipe (4) being in communication with a liquid storage chamber (31) located at the bottom of the water distributor (3).

2. The hydrogen-side gas-liquid separation device according to claim 1, characterized in that: The connecting pipe (4) is a hose.

3. The hydrogen-side gas-liquid separation device according to claim 1, characterized in that: The cross-sectional area of ​​the connecting pipe (4) is smaller than the cross-sectional area of ​​the air inlet passage (40) in the water receiving box (2).

4. The hydrogen-side gas-liquid separation device according to claim 1, characterized in that: The bottom of the water distributor (3) is provided with a communication cavity (33) communicating with the liquid storage cavity (31), and the bottom end of the connecting pipe (4) is communicated with the liquid storage cavity (31) through the communication cavity (33); The connecting pipe (4) is provided with a one-way conducting member (5), and the one-way conducting member (5) is one-way conducting in a direction pointing toward the communicating cavity (33).

5. The hydrogen-side gas-liquid separation device according to claim 4, characterized in that: The one-way conducting member (5) is located at the bottom end of the connecting pipe (4).

6. The hydrogen side gas-liquid separation device according to claim 1, characterized in that The box body of the water receiving box (2) and the shell of the water distributor (3) are integrally formed, and a connecting pipe (34) is provided between the box body of the water receiving box (2) and the shell of the water distributor (3), and the air inlet passage (40) is formed in the connecting pipe (34).

7. The hydrogen-side gas-liquid separation device according to any one of claims 1 to 6, characterized in that: The water separator (3) is provided with a plurality of gas-liquid separation parts; The plurality of gas-liquid separation parts are arranged at intervals along the air inlet direction in the water separator (3), and at least a portion of the air inlet channel (40) in the water separator (3) is limited to extend in an "S" shape.

8. The hydrogen-side gas-liquid separation device according to claim 7, characterized in that: Each of the gas-liquid separation parts comprises a gas-liquid separation plate (35); One end of each separation plate is connected to the inner wall of the water divider (3), and the other end extends transversely toward the longitudinal center of the water divider (3), and at least a portion of each separation plate is arranged to gradually decline in the direction pointing toward the longitudinal center of the water divider (3).

9. A fuel cell system, characterized in that: The fuel cell system is provided with a hydrogen-side gas-liquid separation device as described in any one of claims 1-8.

10. A vehicle, characterized in that: The vehicle is provided with the fuel cell system according to claim 9.

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