CN220677096U - Gas-liquid separator and fuel cell - Google Patents

Abstract

The utility model discloses a gas-liquid separator and a fuel cell. The gas-liquid separator includes a housing, a first baffle, and a second baffle. The casing is provided with an air outlet, a liquid outlet and a gas-liquid converging inlet which are communicated with the accommodating cavity, and the air outlet is arranged above the liquid outlet and the gas-liquid converging inlet. The first baffle is transversely arranged in the accommodating cavity and positioned below the air outlet, and the first baffle and the inner wall of the shell jointly define a first diversion port. The second baffle is transversely arranged below the first baffle and defines a second diversion port together with the inner wall of the shell. The gas-liquid inlet is arranged below the second baffle plate, and the first diversion port and the second diversion port are at least partially misaligned along the vertical direction. The gas-liquid separator and the fuel cell have excellent gas-liquid separation effect, and can realize normal collection and recycling of gas and liquid.

Description

Gas-liquid separator and fuel cell

Technical Field

The utility model relates to the technical field of fuel cells, in particular to a gas-liquid separator and a fuel cell.

Background

The fuel cell is operated with the tail gas producing a large amount of liquid and high temperature and humidity gases. In order to realize the recycling of resources and prevent gas from harming human bodies and polluting the environment, the gas-liquid mixture needs to be subjected to gas-liquid separation operation.

In the related art, a gas-liquid separation operation is performed using a gas-liquid separator. The gas-liquid separator is provided with a gas outlet, a liquid outlet and a gas-liquid converging inlet which are communicated with the internal cavity. The internal chamber is also provided with a baffle plate which is arranged spirally around the central axis. When the gas-liquid mixture enters the cavity from the gas-liquid converging inlet, the gas is discharged from the gas outlet along the spiral baffle, and the liquid is discharged from the liquid outlet due to the action of gravity. However, as the parts of the spiral baffle are continuous, part of the gas carrying the liquid can be directly discharged along the spiral baffle. Therefore, the existing gas-liquid separator has poor gas-liquid separation effect, and influences the collection and recycling of gas and liquid.

Disclosure of Invention

The utility model mainly aims to provide a gas-liquid separator and a fuel cell, and aims to solve the technical problem of poor gas-liquid separation effect.

To achieve the above object, an embodiment of a first aspect of the present utility model provides a gas-liquid separator for gas-liquid separation of a gas-liquid mixture produced by a fuel cell, the gas-liquid separator comprising:

the shell is provided with an air outlet, a liquid outlet and a gas-liquid converging inlet which are communicated with the accommodating cavity, and the air outlet is arranged above the liquid outlet and the gas-liquid converging inlet;

the first baffle is transversely arranged in the accommodating cavity and positioned below the air outlet, and the first baffle and the inner wall of the shell jointly define a first diversion port;

the second baffle plate is transversely arranged below the first baffle plate and is used for limiting a second diversion port together with the inner wall of the shell;

the gas-liquid inlet is arranged below the second baffle plate, and the first diversion port and the second diversion port are at least partially misaligned along the vertical direction.

In some embodiments, the first flow directing port and the second flow directing port are completely non-coincident in the vertical direction.

In some embodiments, a third baffle is transversely disposed between the second baffle and the gas-liquid inlet, and defines a third diversion port with the inner wall of the housing, and the first diversion port, the second diversion port, and the third diversion port are at least partially misaligned in the vertical direction.

In some embodiments, the first baffle has a first wall that cooperates with an inner wall of the housing to define the first flow director, the second baffle has a second wall that cooperates with an inner wall of the housing to define the second flow director, and the third baffle has a third wall that cooperates with an inner wall of the housing to define the third flow director;

the first wall surface is perpendicular to the second wall surface, and the second wall surface is perpendicular to the third wall surface.

In some embodiments, the inner wall includes a top wall, a side wall and a bottom wall, the side wall is located between the top wall and the bottom wall, the air outlet is located in the top wall, the air-liquid inlet is located in the side wall, and the liquid outlet is located in the bottom wall.

In some embodiments, the liquid outlet and the air outlet are oppositely arranged along the vertical direction, the shell is provided with a gas-liquid converging channel, the gas-liquid converging channel comprises the gas-liquid converging inlet, and the gas-liquid converging channel is tangential to the side wall and vertical to the vertical direction.

In some embodiments, the first baffle includes a first end proximate the first conduction port and a second end distal from the first conduction port, and the second baffle includes a third end proximate the second conduction port and a fourth end distal from the second conduction port;

wherein the first end is lower than the second end and the third end is lower than the fourth end.

In some embodiments, the housing comprises a first body and a second body, the first body and the second body together defining the accommodation cavity, the first body and the second body being arranged separately, the first body being provided on an upper portion of the second body, the first body being provided with the air outlet, the second body being provided with the liquid outlet.

In some embodiments, the outlet opening area is greater than the outlet opening area.

An embodiment of a second aspect of the present utility model provides a fuel cell including the gas-liquid separator of the above embodiment.

Compared with the prior art, the utility model has the beneficial effects that:

in the technical scheme of the utility model, a first baffle plate and a second baffle plate are arranged in a containing cavity of the gas-liquid separator. The second baffle is arranged below the first baffle, and the gas-liquid inlet is arranged below the second baffle. Namely, after the gas-liquid mixture enters the accommodating cavity through the gas-liquid converging inlet, the gas-liquid mixture can collide with the shell and the first baffle plate to realize primary gas-liquid separation, then the gas-liquid mixture continues to circulate through the first flow guide opening, collides with the shell and the second baffle plate to realize secondary gas-liquid separation, the separated gas is discharged from the gas outlet through the second flow guide opening, and the separated liquid falls into the liquid outlet to be discharged under the action of gravity. Because the first diversion port and the second diversion port are at least partially not overlapped, the first baffle plate and the second baffle plate can prevent the air flow carrying liquid from directly flowing out from the air outlet, so that the air-liquid mixture is fully collided and separated with the shell, the first baffle plate and the second baffle plate. In the existing gas-liquid separator, part of the gas-liquid mixture can rise along the spiral baffle plate and flow out from the gas outlet, and the gas-liquid separation effect is poor. In the scheme, the first baffle plate is spaced from the second baffle plate, so that liquid mixture can be prevented from flowing and being discharged along the first baffle plate and the second baffle plate, and the gas-liquid separation rate is ensured. Additionally, as the baffles in the existing gas-liquid separator are arranged in a spiral ascending manner, the collision angle between the gas-liquid mixture and the baffles is small, and the gas-liquid mixture cannot fully collide with the baffles to realize separation. The first baffle and the second baffle in the scheme are transversely arranged in the accommodating cavity, so that the collision angle of the gas-liquid mixture with the first baffle and the second baffle can be increased, the gas-liquid separation effect is excellent, and the normal collection and cyclic utilization of gas and liquid can be realized.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a gas-liquid separator according to an embodiment of the present utility model;

FIG. 2 is a front view of a gas-liquid separator according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a gas-liquid separator with a shell removed according to an embodiment of the present utility model;

FIG. 4 is a schematic perspective view of a gas-liquid separator according to an embodiment of the present utility model;

FIG. 5 is a schematic perspective view of a gas-liquid separator according to an embodiment of the present utility model, in another direction;

FIG. 6 is a front cross-sectional view of a gas-liquid separator in an embodiment of the utility model.

Reference numerals illustrate:

a gas-liquid separator 10;

a housing 100; a receiving chamber 110; an air outlet 120; a liquid outlet 130; a gas-liquid inlet 140; an inner wall 150; a top wall 151; a sidewall 152; a bottom wall 153; the gas and liquid flow into the channel 160; a first body 170; a second body 180;

a first baffle 200; a first conduction port 210; a first wall 220; a first end 230; a second end 240;

a second baffle 300; a second conduction port 310; a second wall 320; a third end 330; a fourth end 340;

a third baffle 400; a third conduction port 410; a third wall 420;

a transverse direction X; vertical Y.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the related art, a gas-liquid separation operation is performed using a gas-liquid separator. The gas-liquid separator is provided with a gas outlet, a liquid outlet and a gas-liquid converging inlet which are communicated with the internal cavity. The internal chamber is also provided with a baffle plate which is arranged spirally around the central axis. The gas-liquid mixture enters the cavity from the gas-liquid converging inlet, the gas is discharged from the gas outlet along the spiral baffle, and the liquid is discharged from the liquid outlet due to the action of gravity. However, as the parts of the spiral baffle are continuous, part of the gas carrying the liquid can be directly discharged along the spiral baffle. Therefore, the existing gas-liquid separator has poor gas-liquid separation effect, and influences the collection and recycling of gas and liquid.

In view of this, the embodiment of the first aspect of the present utility model proposes a gas-liquid separator 10, which gas-liquid separator 10 has excellent gas-liquid separation effect. It will be appreciated that the separator 10 may be used in a fuel cell to separate gas from liquid in a gas-liquid mixture in a tail gas stream during operation of the fuel cell. The gas-liquid separator 10 of the present application is described below with reference to fig. 1 to 6. Specifically, the gas-liquid separator 10 includes a housing 100, a first baffle 200, and a second baffle 300.

Referring to fig. 1 and 2, the housing 100 is a housing of the gas-liquid separator 10, and the housing 100 may be made of stainless steel. The housing 100 defines a receiving chamber 110, and the receiving chamber 110 is a chamber in which a gas-liquid mixture is separated into a gas and a liquid. The housing 100 may take a variety of shape configurations, and in some embodiments, the outer profile of the housing 100 may be cylindrical. In other embodiments, the outer contour of the housing 100 may also be square. In other embodiments, the outer contour of the housing 100 may also be truncated cone, and the embodiments herein are described taking the cylindrical shape of the housing 100 as an example, as the case may be.

Referring to fig. 1, a housing 100 is provided with an air outlet 120, a liquid outlet 130, and a gas-liquid inlet 140 communicating with a receiving chamber 110. It will be appreciated that the gas-liquid inlet 140 may allow the gas-liquid mixture exiting the fuel cell to enter the receiving chamber 110. The gas outlet 120 may allow the gas from which the gas-liquid separation is completed to flow out of the accommodating chamber 110. The liquid outlet 130 can be used for liquid which is subjected to gas-liquid separation to flow out of the accommodating cavity 110. The specific structure and size of the gas outlet 120, the liquid outlet 130, and the gas-liquid inlet 140 may be determined according to practical situations.

Since the high-temperature gas density generated by the fuel cell is small, the gas-liquid separator 10 floats up. The liquid with high density can sink under the action of gravity. Accordingly, the gas outlet 120 may be disposed above the liquid outlet 130 and the gas-liquid inlet 140 to facilitate the discharge and collection of the gas, as shown in fig. 1.

It is understood that the relative arrangement of the liquid outlet 130 and the gas-liquid inlet 140 may be determined according to practical situations. Referring to fig. 1, in some embodiments, the liquid outlet 130 may be disposed below the gas-liquid inlet 140, so as to facilitate the discharge and collection of the liquid. In other embodiments, the liquid outlet 130 may be disposed above the gas-liquid inlet 140, i.e. the liquid may be stored in the gas-liquid separator 10 before being discharged and collected, which is not shown in the drawings. Some embodiments of the present application are described by taking the case that the liquid outlet 130 is disposed below the gas-liquid inlet 140 as an example.

Referring to fig. 3 to 6, the first barrier 200 is disposed at the receiving chamber 110 in a lateral direction X. Specifically, the first barrier 200 may be connected with the inner wall 150 of the case 100. The lateral direction X may refer to any direction along the horizontal direction, and the orientation shown in fig. 6 is referred to. In some embodiments, the lateral direction X may refer to a horizontal left-right direction. In other embodiments, the lateral direction X may also refer to a horizontal front-to-back direction. In other embodiments, the lateral direction X may also refer to any oblique direction that is horizontal. Depending on the actual situation. The first baffle 200 can increase the collision angle of the gas-liquid mixture and the gas-liquid separation effect by adopting the transverse X arrangement.

Referring to fig. 3, it should be noted that in some embodiments, the first baffle 200 may be a solid plate. In other embodiments, the first baffle 200 may also be a screen plate. Some embodiments of the present application are described using a baffle plate as an example of a solid plate.

Referring to fig. 5, the first baffle 200 is located below the gas outlet 120, that is, before part of the gas flow carrying the liquid is discharged through the gas outlet 120, the part of the gas-liquid mixture collides with the first baffle 200 sufficiently, so as to realize secondary gas-liquid separation. The first baffle 200 and the inner wall 150 of the housing 100 together define a first conduction port 210. It is understood that the separated gas may be discharged from the gas outlet 120 through the first flow guide 210.

Referring to fig. 3 and 5, the second barrier 300 is disposed below the first barrier 200 in the lateral direction X, and the second barrier 300 is spaced apart from the first barrier 200. It is understood that the specific direction of the lateral X arrangement of the second barrier 300 may be different from the lateral X arrangement direction of the first barrier 200. The gas-liquid mixture flowing into the receiving chamber 110 may collide with the second baffle 300 to achieve primary gas-liquid separation. The second baffle 300 cooperates with the inner wall 150 of the housing 100 to define a second conduction port 310. I.e., the separated gas may flow through the second flow-guiding port 310 to the first baffle 200. The second baffle 300 may be a solid plate or a mesh plate. Some embodiments of the present application are described using the second baffle 300 as an example of a screen plate.

Referring to fig. 5, the gas-liquid inlet 140 is provided below the second baffle 300, that is, the gas-liquid mixture collides with both the first baffle 200 and the second baffle 300. Because the first baffle 200 is spaced apart from the second baffle 300, the gas-liquid mixture can be prevented from flowing out along the first baffle 200 and the second baffle 300, thereby guaranteeing the gas-liquid separation effect.

Referring to fig. 3 to 6, in the vertical direction Y, the first conduction port 210 is at least partially misaligned with the second conduction port 310. For ease of understanding, the projection of the first and second vents 210, 310 is illustrated. The housing 100 is defined to have a plane perpendicular to the vertical Y, and assuming that the plane is a projection plane, the first flow guiding opening 210 forms a first orthographic projection on the projection plane, and the second flow guiding opening 310 forms a second orthographic projection on the projection plane. At least partial misalignment of the first conduction vent 210 with the second conduction vent 310 is understood to mean that at least a portion of the area of the first orthographic projection is outside of the second orthographic projection.

In the solution of the present utility model, the first baffle 200 and the second baffle 300 are disposed in the accommodating chamber 110 of the gas-liquid separator 10. The second baffle 300 is disposed below the first baffle 200, and the gas-liquid inlet 140 is disposed below the second baffle 300. That is, after the gas-liquid mixture enters the accommodating cavity 110 through the gas-liquid converging port 140, the gas-liquid mixture can collide with the housing 100 and the first baffle 200 to realize primary gas-liquid separation, then continuously circulate through the first flow guide port 210, collide with the housing 100 and the second baffle 300 to realize secondary gas-liquid separation, the separated gas is discharged from the gas outlet 120 through the second flow guide port 310, and the separated liquid falls into the liquid outlet 130 under the action of gravity to be discharged. Since the first diversion port 210 and the second diversion port 310 are at least partially misaligned, the first baffle 200 and the second baffle 300 can avoid the air flow carrying the liquid from directly flowing out from the air outlet 120, so that the air-liquid mixture is fully collided and separated from the shell 100, the first baffle 200 and the second baffle 300. In the existing gas-liquid separator, part of the gas-liquid mixture can rise along the spiral baffle plate and flow out from the gas outlet, and the gas-liquid separation effect is poor. In this embodiment, the first baffle 200 is spaced from the second baffle 300, so that the liquid mixture can be prevented from flowing along the first baffle 200 and the second baffle 300 to be discharged, and the gas-liquid separation rate is ensured. Additionally, as the baffles in the existing gas-liquid separator are arranged in a spiral ascending manner, the collision angle between the gas-liquid mixture and the baffles is small, and the gas-liquid mixture cannot fully collide with the baffles to realize separation. The first baffle 200 and the second baffle 300 in the present embodiment are disposed in the accommodating cavity in the transverse direction X, i.e. the collision angle between the gas-liquid mixture and the first baffle 200 and the second baffle 300 can be increased, so that the gas-liquid separation effect is excellent, and the normal collection and recycling of the gas and the liquid can be realized.

In some embodiments, the first diversion port 210 and the second diversion port 310 are completely misaligned in the vertical direction Y, that is, the first baffle 200 may cover the second diversion port 310 and the second baffle 300 may cover the first diversion port 210 when viewed in the vertical direction Y. Referring to fig. 3 and 4, in another embodiment, the first diversion port 210 and the second diversion port 310 are not partially overlapped along the vertical direction Y, that is, part of the gas can directly flow out of the accommodating cavity 110 from the overlapped part between the first diversion port 210 and the second diversion port 310, so that the circulation speed of the gas can be ensured, and the efficiency is improved.

Referring to fig. 3-6, in some embodiments, a third baffle 400 is disposed laterally X between the second baffle 300 and the gas-liquid inlet 140. The third baffle 400 is spaced apart from the second baffle 300. The specific arrangement direction of the third barrier 400 may be different from the first barrier 200 and the second barrier 300. It will be appreciated that, similar to the first baffle 200 and the second baffle 300, the third baffle 400 may be a solid plate or a tray.

The third baffle 400 cooperates with the inner wall 150 of the housing 100 to define a third conduction port 410. That is, the gas-liquid mixture may collide with the third baffle 400 to be separated, and then, flow through the third flow guide 410 to the second baffle 300 and the first baffle 200, and the gas-liquid separation may be continued. It will be appreciated that in other embodiments, the gas-liquid separator 10 may further include a fourth baffle, a fifth baffle, etc., as the case may be.

In this scheme, the third baffle 400 is additionally provided to the gas-liquid separator 10, along the vertical Y, the first conduction port 210, the second conduction port 310 and the third conduction port 410 are at least partially misaligned, that is, the first baffle 200, the second baffle 300 and the third baffle 400 can jointly inhibit the gas-liquid mixture from directly flowing out of the accommodating cavity 110, and this scheme can increase the collision area and the collision time of the gas-liquid mixture and the baffle, and further improve the gas-liquid separation effect.

Referring to fig. 3 to 5, in some embodiments, the first baffle 200 has a first wall surface 220, and both ends of the first wall surface 220 in the arrangement direction thereof are connected with the inner wall 150 of the housing 100 and together define a first conduction port 210. The first barrier 200 may be a curved barrier. Alternatively, the first wall surface 220 may be a planar wall or a curved wall. Some embodiments of the present application are illustrated with the first wall 220 as a planar wall.

The second baffle 300 has a second wall surface 320, and both ends of the second wall surface 320 along the arrangement direction thereof are connected to the inner wall 150 of the housing 100 and together define a second flow guiding opening 310. The second wall 320 may be planar as the first wall 220. The second barrier 300 may have the same structure as the first barrier 200, i.e., both are arc-shaped barriers.

The third baffle 400 has a third wall 420, and both ends of the third wall 420 in the arrangement direction thereof are connected with the inner wall 150 of the housing 100 to define a third flow guiding port 410. The third wall 420 may be planar as the first wall 220. The third barrier 400 may have the same structure as the first barrier 200 and may be an arc-shaped barrier.

In this embodiment, the first wall 220 is perpendicular to the second wall 320, i.e. the arrangement direction of the first baffle 200 is perpendicular to the second baffle 300, the second wall 320 is perpendicular to the third wall 420, i.e. the arrangement direction of the second baffle 300 is perpendicular to the third baffle 400. The arrangement is convenient for the gas to flow through the diversion openings rapidly on one hand, and on the other hand, the gas-liquid mixture and the baffles are fully collided to realize gas-liquid separation.

Referring to fig. 6, in some embodiments, the inner wall 150 includes a top wall 151, side walls 152, and a bottom wall 153. The side walls 152 are located between the top wall 151 and the bottom wall 153. It will be appreciated that the upper end of the side wall 152 in the vertical direction Y is connected to the top wall 151, and the lower end of the side wall 152 in the vertical direction Y is connected to the bottom wall 153.

The gas outlet 120 may be disposed on the top wall 151, so that the gas can be fully collided with each baffle and the housing 100, thereby increasing the collision time and the collision area of the gas and improving the gas-liquid separation rate. The gas-liquid inlet 140 may be disposed on the side wall 152, and the liquid outlet 130 is disposed on the bottom wall 153. The arrangement is convenient for the gas to collide with each baffle plate to realize gas-liquid separation on one hand, and is beneficial to liquid falling collection on the other hand.

Referring to fig. 6, in some embodiments, the liquid outlet 130 is disposed opposite the gas outlet 120 in the vertical direction Y. It will be appreciated that the gas outlet 120 is provided at an upper portion of the gas-liquid separator 10 in the vertical direction Y, and the liquid outlet 130 is provided at a lower portion of the gas-liquid separator 10 in the vertical direction Y.

The housing 100 is provided with a gas-liquid inflow passage 160, and the gas-liquid inflow passage 160 includes a gas-liquid inflow port 140. Specifically, the gas-liquid inlet 140 is disposed at an end of the gas-liquid inlet channel 160 near the accommodating cavity 110, and an end of the gas-liquid inlet channel 160 facing away from the gas-liquid inlet 140 may be in communication with a tail system of the fuel cell.

Referring to fig. 2, the gas-liquid inlet channel 160 is tangential to the side wall 152 and perpendicular to the vertical Y. Specifically, the gas-liquid inlet channel 160 may be inscribed with the sidewall 152. The above arrangement can effectively prolong the distance from the gas-liquid inlet 140 to the first diversion port 210, so that the gas-liquid mixture flowing into the accommodating cavity 110 can collide with the baffle plate sufficiently, part of the gas-liquid mixture is prevented from being discharged through the diversion port without collision separation, and the gas-liquid separation effect is ensured.

Referring to fig. 4 and 6, in some embodiments, the first baffle 200 includes a first end 230 proximate the first conduction vent 210 and a second end 240 distal from the first conduction vent 210. It will be appreciated that the first end 230 is spaced from the inner wall 150 on one side thereof (where the first conduction port 210 is formed), and the second end 240 is connected to the inner wall 150 on one side thereof.

The second baffle 300 includes a third end 330 proximate the second conduction vent 310 and a fourth end 340 distal from the second conduction vent 310. Specifically, the third end 330 is spaced from the inner wall 150 on one side thereof (the second conduction port 310 is formed at the spacing), and the fourth end 340 is connected to the inner wall 150 on one side thereof.

In this embodiment, after the gas-liquid mixture collides with the baffle plate and the inner wall 150 to achieve gas-liquid separation, the first end 230 is lower than the second end 240, and the third end 330 is lower than the fourth end 340, so that the liquid on the first baffle plate 200 flows from the second end 240 to the first end 230 and then falls to the second baffle plate 300 through the first flow guiding port 210. Similarly, the liquid on the second baffle 300 is also facilitated to flow from the fourth end 340 to the third end 330, and then falls to the liquid outlet 130 through the second diversion port 310. The liquid can be prevented from accumulating on the first baffle 200 and the second baffle 300, the gas which is separated is prevented from being combined with the part of liquid again, and the gas-liquid separation effect is ensured.

Referring to fig. 1 and 2, in some embodiments, the housing 100 includes a first body 170 and a second body 180, the first body 170 and the second body 180 together defining the receiving cavity 110, the first body 170 being disposed separately from the second body 180. The first body 170 is disposed at an upper portion of the second body 180, the first body 170 is provided with the air outlet 120, and the second body 180 is provided with the liquid outlet 130. The split arrangement of the housing 100 facilitates the assembly and disassembly of the baffles by personnel and the maintenance thereof.

Referring to fig. 1 and 2, in some embodiments, the opening area of the air outlet 120 is larger than the opening area of the liquid outlet 130. For convenience of description, S1 denotes an opening area of the air outlet 120, and S2 denotes an opening area of the liquid outlet 130. Illustratively, S1 may be 1-fold, 1.3-fold, 1.7-fold, 1.9-fold, 2-fold, 2.5-fold, etc. of S2. Some embodiments of the present application are described with S1 being 2.5S2. The arrangement can improve the circulation speed of the gas, prevent the separated gas from being combined with the liquid again and ensure the gas-liquid separation effect.

An embodiment of the second aspect of the utility model proposes a fuel cell including the gas-liquid separator 10 of the above-described embodiment. The fuel cell has excellent gas-liquid separation effect, can avoid harmful gas from polluting the environment, can realize the recycling of liquid and saves the production cost.

It should be noted that, if a directional indication (such as up, down, left, right, front, and rear … …) is included in the embodiment of the present utility model, the directional indication is merely used to explain a relative positional relationship, a movement condition, and the like between the components in a specific posture, and if the specific posture is changed, the directional indication is correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if "and/or", "and/or" and/or "are used throughout, the meaning includes three parallel schemes, for example," a and/or B ", including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims (10)

1. A gas-liquid separator for gas-liquid separation of a gas-liquid mixture produced by a fuel cell, characterized by comprising:

the shell is provided with an air outlet, a liquid outlet and a gas-liquid converging inlet which are communicated with the accommodating cavity, and the air outlet is arranged above the liquid outlet and the gas-liquid converging inlet;

the first baffle is transversely arranged in the accommodating cavity and positioned below the air outlet, and the first baffle and the inner wall of the shell jointly define a first diversion port;

the second baffle plate is transversely arranged below the first baffle plate and is used for limiting a second diversion port together with the inner wall of the shell;

the gas-liquid inlet is arranged below the second baffle plate, and the first diversion port and the second diversion port are at least partially misaligned along the vertical direction.

2. The gas-liquid separator according to claim 1, wherein,

and the first diversion port and the second diversion port are completely misaligned along the vertical direction.

3. The gas-liquid separator according to claim 1, further comprising,

and the third baffle is transversely arranged between the second baffle and the gas-liquid inlet, and is used for defining a third diversion port together with the inner wall of the shell, and the first diversion port, the second diversion port and the third diversion port are at least partially misaligned along the vertical direction.

4. A gas-liquid separator according to claim 3 wherein,

the first baffle plate is provided with a first wall surface, the first wall surface and the inner wall of the shell jointly define the first diversion port, the second baffle plate is provided with a second wall surface, the second wall surface and the inner wall of the shell jointly define the second diversion port, the third baffle plate is provided with a third wall surface, and the third wall surface and the inner wall of the shell jointly define the third diversion port;

the first wall surface is perpendicular to the second wall surface, and the second wall surface is perpendicular to the third wall surface.

5. The gas-liquid separator according to claim 1, wherein,

the inner wall comprises a top wall, side walls and a bottom wall, wherein the side walls are positioned between the top wall and the bottom wall, the air outlet is formed in the top wall, the gas-liquid inlet is formed in the side walls, and the liquid outlet is formed in the bottom wall.

6. The gas-liquid separator according to claim 5 wherein,

the liquid outlet and the air outlet are oppositely arranged along the vertical direction, the shell is provided with a gas-liquid converging channel, the gas-liquid converging channel comprises a gas-liquid converging inlet, and the gas-liquid converging channel is tangential to the side wall and vertical to the vertical direction.

7. The gas-liquid separator according to claim 1, wherein,

the first baffle plate comprises a first end close to the first diversion port and a second end far away from the first diversion port, and the second baffle plate comprises a third end close to the second diversion port and a fourth end far away from the second diversion port;

wherein the first end is lower than the second end and the third end is lower than the fourth end.

8. The gas-liquid separator according to claim 1, wherein,

the casing includes first body and second body, first body with the second body is jointly limited hold the chamber, first body with the second body components of a whole that can function independently arranges, first body is located the upper portion of second body, first body is equipped with the gas outlet, second body is equipped with the liquid outlet.

9. The gas-liquid separator according to claim 1, wherein,

the opening area of the air outlet is larger than that of the liquid outlet.

10. A fuel cell comprising the gas-liquid separator according to any one of claims 1 to 9.