A compact gas-water separator for a fuel cell

Abstract

The utility model relates to fuel cell technical field discloses a compact gas water separator for fuel cell, including empty jar body, the bottom fixedly connected with liquid collection structure of empty jar body, the bottom be provided with the flow guide hole, the middle part fixed setting of empty jar body top portion has motor, the output fixedly connected with pivot no.

Description

Technical Field

[0001] This utility model relates to the field of fuel cell technology, and in particular to a compact gas-water separator for fuel cells. Background Technology

[0002] Fuel cell systems typically use hydrogen as fuel. Hydrogen is introduced into the fuel cell and reacts to produce water. Some unreacted hydrogen mixes with the produced water to form a water-gas mixture that is discharged from the fuel cell. Since the hydrogen needs to be recovered and reused, a gas-water separator is required to separate the hydrogen from the water in the discharged water-gas mixture.

[0003] Traditional gas-water separators mostly separate the gas-water mixture by having it impact a baffle, resulting in a single method and low separation efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a compact gas-water separator for fuel cells, aiming to improve the problem of low separation efficiency of traditional gas-water separators.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a compact gas-liquid separator for fuel cells, comprising an empty tank, a liquid collection structure fixedly connected to the bottom of the empty tank, a flow guide hole opened at the bottom of the empty tank, a motor fixedly installed in the middle of the top of the empty tank, a rotating shaft fixedly connected to the output end of the motor, a baffle plate and a baffle plate symmetrically fixedly connected to the outer wall of the rotating shaft, a fan blade fixedly connected to the bottom of the rotating shaft, the bottom end of the rotating shaft rotatably connected to the inside of the empty tank, one side of the baffle plate and the baffle plate slidably connected to the inner wall of the empty tank, an inlet pipe and an outlet pipe fixedly connected to the top of the empty tank in sequence, a one-way valve provided inside the inlet pipe and the outlet pipe, one side of the one-way valve fixedly connected to the upper part of the empty tank.

[0006] By adopting the above technical solution, the gas-liquid mixture is initially separated by the rotation of the first and second baffle plates. Further separation is achieved by the gas-liquid mixture impacting the baffle plates. Meanwhile, the fan blades rotate to discharge the separated gas, thus achieving high-efficiency gas-liquid separation. This improves upon the problem that traditional gas-liquid separators mostly separate gas and water by impacting the baffle plates, resulting in a single effect and low separation efficiency.

[0007] Preferably, the one-way valve includes a limiting shell, the outer wall of which is fixedly connected to the top of the empty tank, a second rotating shaft is fixedly connected inside the limiting shell, a baffle plate is symmetrically rotatably connected to the outer wall of the second rotating shaft, a second spring is provided in the middle of the second rotating shaft, and one end of the second spring is fixedly connected to the bottom of the baffle plate.

[0008] Preferably, the liquid collection structure includes a liquid collection tank, the top of which is fixedly connected to the bottom of the empty tank, and a sliding rod is fixedly connected to the inner wall of the liquid collection tank.

[0009] Preferably, a second slide rod is fixedly connected to the middle of the first slide rod, and a piston is slidably connected to the outer wall of the second slide rod.

[0010] Preferably, the top of the piston is symmetrically and fixedly connected with connecting ropes, and one end of the connecting rope is fixedly connected with a float.

[0011] Preferably, the outer wall of the piston is located at the bottom of the liquid collection tank, and a spring is fixedly connected to the bottom of the piston.

[0012] Preferably, a limiting block is fixedly connected to one end of the spring one, the top of the limiting block is fixedly connected to the bottom of the slide rod two, and the outer wall of the slide rod two is disposed in the middle of the spring one.

[0013] Preferably, a load-bearing plate is fixedly connected to the outer wall of the liquid collection tank, and a load-bearing column is fixedly connected to the bottom of the load-bearing plate.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the gas-liquid mixture is initially separated by the rotation of the first and second baffle plates. The gas-liquid mixture is further separated by impacting the baffle plates. Meanwhile, the fan blades rotate to discharge the separated gas, thereby achieving high-efficiency gas-liquid separation. This improves upon the problem that traditional gas-liquid separators mostly separate gas-liquid mixtures by impacting the baffle plates, resulting in a single effect and low separation efficiency.

[0016] 2. In this utility model, the gas pressure drives the baffle plate to move, thereby realizing the flow of gas. By restricting the cooperation between the shell and the baffle plate, the unidirectional flow of gas is achieved, preventing the device from leaking. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a compact gas-water separator for fuel cells proposed in this utility model.

[0018] Figure 2 This is a partial structural diagram of the fan blade of a compact gas-water separator for fuel cells proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of a partial structure of a spring in a compact gas-water separator for fuel cells proposed in this utility model.

[0020] Figure 4 This is a partial structural diagram of the float of a compact gas-water separator for fuel cells proposed in this utility model.

[0021] Figure 5 This is a partial structural diagram of the air inlet pipe of a compact gas-water separator for fuel cells proposed in this utility model.

[0022] Legend:

[0023] 1. Empty tank; 2. Air inlet pipe; 3. Motor; 4. Air outlet pipe; 5. Load-bearing plate; 6. Load-bearing column; 7. Liquid collection tank; 8. Spring 1; 9. Limiting block; 10. Rotating shaft 1; 11. Water baffle 1; 12. Water baffle 2; 13. Fan blade; 14. Limiting shell; 15. Air baffle; 16. Rotating shaft 2; 17. Spring 2; 18. Slide rod 1; 19. Slide rod 2; 20. Float; 21. Piston; 22. Connecting rope. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1 , Figure 2 and Figure 5 This utility model provides an embodiment of a compact gas-liquid separator for fuel cells, comprising an empty tank 1, a liquid collection structure fixedly connected to the bottom of the empty tank 1, a flow guide hole opened at the bottom of the empty tank 1, a motor 3 fixedly installed at the middle of the top of the empty tank 1, a rotating shaft 10 fixedly connected to the output end of the motor 3, a baffle 11 and a baffle 2 12 symmetrically fixedly connected to the outer wall of the rotating shaft 10, a fan blade 13 fixedly connected to the bottom of the rotating shaft 10, the bottom end of the rotating shaft 10 rotatably connected to the inside of the empty tank 1, one side of the baffle 11 and the baffle 2 12 being slidably connected to the inner wall of the empty tank 1, an air inlet pipe 2 and an air outlet pipe 4 being fixedly connected to the top of the empty tank 1 in sequence, a one-way valve being provided inside the air inlet pipe 2 and the air outlet pipe 4, one side of the one-way valve being fixedly connected to the upper part of the empty tank 1.

[0026] Specifically, when the gas-water mixture enters from the air inlet pipe 2 and reaches the empty tank 1 through the one-way valve, the motor 3 is started. The motor 3 drives the rotating shaft 10 to rotate, which in turn drives the baffle plate 11 and the baffle plate 22 to slide on the inner wall of the empty tank 1. At the same time, it also drives the fan blade 13 to rotate. The rotation of the baffle plate 11 and the baffle plate 22 causes the gas-water mixture to rotate. The rotation of the gas-water mixture can initially separate the gas and water mixture. Then, by impacting the baffle plate 11 and the baffle plate 22, the gas and water mixture can be further separated into liquids. The separated liquids flow to the liquid collection through the guide holes opened inside the empty tank 1. Structure: After the liquid in the gas-liquid mixture is separated, the separated gas is blown by the fan blade 13. At the same time, the one-way valve is one-way, so the separated gas can only flow out from the one-way valve of the outlet pipe 4 and cannot flow out from the inlet pipe 2. The gas-liquid mixture is rotated by the first baffle plate 11 and the second baffle plate 12 for initial separation. The gas-liquid mixture is further separated by impacting the baffle plate 11 and the baffle plate 12. The fan blade 13 rotates to discharge the separated gas, thus achieving high-efficiency gas-liquid separation. This improves the problem that traditional gas-liquid separators mostly separate gas and water by impacting the baffle plate, resulting in a single effect and low separation efficiency.

[0027] Reference Figure 3 and Figure 5 The one-way valve includes a limiting shell 14, the outer wall of which is fixedly connected to the top of the empty tank 1. A rotating shaft 16 is fixedly connected inside the limiting shell 14. A baffle plate 15 is symmetrically rotatably connected to the outer wall of the rotating shaft 16. A spring 17 is provided in the middle of the rotating shaft 16. One end of the spring 17 is fixedly connected to the bottom of the baffle plate 15.

[0028] Specifically, when the gas-water mixture enters the empty tank 1 from the inlet pipe 2, and the pressure of the gas-water mixture exceeds the elastic force of the spring 17 under the inlet pipe 2, the gas-water mixture pushes the baffle plate 15 to rotate around the rotating shaft 16, thus creating a gap between the two baffle plates 15. This allows the gas-water mixture to pass through the limiting shell 14 into the empty tank 1 in one direction. When the separated gas enters the outlet pipe 4 from inside the empty tank 1, the limiting shell 14 restricts the baffle plate 15 from moving in the opposite direction, preventing the separated gas from exiting the inlet pipe 2 regardless of the gas pressure. When the pressure is greater than the elastic force of spring 17 under the outlet pipe 4, the separated gas pushes the baffle plate 15 to rotate around the rotating shaft 16, thereby creating a gap between the two baffle plates 15, allowing the separated gas to flow unidirectionally through the limiting shell 14 to the outlet pipe 4; when the pressure on the baffle plate 15 decreases, the elastic force of spring 17 is released, causing the baffle plate 15 to return to its original position; the gas pressure pushes the baffle plate 15 to move, thereby realizing the flow of gas. The cooperation between the limiting shell 14 and the baffle plate 15 realizes the unidirectional flow of gas, preventing the device from leaking.

[0029] Reference Figure 1 and Figure 4 The liquid collection structure includes a liquid collection tank 7, the top of which is fixedly connected to the bottom of an empty tank 1. A sliding rod 18 is fixedly connected to the inner wall of the liquid collection tank 7, and a sliding rod 29 is fixedly connected to the middle of the sliding rod 18. A piston 21 is slidably connected to the outer wall of the sliding rod 29. A connecting rope 22 is symmetrically fixedly connected to the top of the piston 21, and a float 20 is fixedly connected to one end of the connecting rope 22. The outer wall of the piston 21 is located at the bottom of the liquid collection tank 7, and a spring 8 is fixedly connected to the bottom of the piston 21. A limiting block 9 is fixedly connected to one end of the spring 8, and the top of the limiting block 9 is fixedly connected to the bottom of the sliding rod 29. The outer wall of the sliding rod 29 is located at the middle of the spring 8. A load-bearing plate 5 is fixedly connected to the outer wall of the liquid collection tank 7, and a load-bearing column 6 is fixedly connected to the bottom of the load-bearing plate 5.

[0030] Specifically, when the liquid reaches a certain level, the liquid causes the float 20 to float, and the liquid exerts an upward force on the float 20. The float 20, through the connecting rope 22, pulls the piston 21 and the spring 8 to slide along the slide rod 19, thus achieving the function of discharging liquid without human intervention. After the liquid is discharged, the float 20 loses its upward force and descends. The spring 8, through its own elasticity, pulls the piston 21 to slide downward along the slide rod 19, thus achieving the function of closing the bottom opening of the liquid collection tank 7 without human intervention. The upward movement of the float 20 with the piston 21 achieves automatic liquid discharge, and the downward movement of the piston 21 pulled by the spring 8 closes the bottom of the liquid collection tank 7, thus automatically draining water without human operation.

[0031] Working principle: During use, when the gas-water mixture enters through the air inlet pipe 2, it pushes the baffle plate 15 to rotate around the rotating shaft 16, thereby allowing the gas-water mixture to enter the empty tank 1 through the one-way valve. The motor 3 is started, and its rotation drives the rotating shaft 10 to rotate. The rotating shaft 10 then drives the baffle plate 11, the baffle plate 12, and the fan blade 13 to rotate. The rotation of the baffle plate 11 and the baffle plate 12 causes the gas-water mixture to rotate, performing initial liquid separation. Simultaneously, the gas-water mixture impacts the baffle plate. Plate 11 and baffle 2 12 further separate the liquid; the separated gas is blown by fan blade 13 and flows out from the outlet pipe 4 through a one-way valve; while the separated liquid flows to the liquid collection structure. When the liquid accumulates in the liquid collection structure, the float 20 rises. The float 20 pulls the piston 21 and spring 18 along the slide rod 2 19 through the connecting rope 22, opening the bottom opening of the liquid collection tank 7 to discharge the liquid; after the liquid is discharged, the float 20 falls, and spring 18 pulls the piston 21 along the slide rod 2 19 to close the opening.

[0032] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A compact gas-liquid separator for fuel cells, comprising an empty tank (1), characterized in that: The bottom of the empty tank (1) is fixedly connected to a liquid collection structure. The bottom of the empty tank (1) is provided with a flow guide hole. The middle of the top of the empty tank (1) is fixedly installed with a motor (3). The output end of the motor (3) is fixedly connected to a rotating shaft (10). The outer wall of the rotating shaft (10) is symmetrically fixedly connected with a baffle plate (11) and a baffle plate (12). The bottom of the rotating shaft (10) is fixedly connected with a fan blade (13). The bottom end of the rotating shaft (10) is rotatably connected to the inside of the empty tank (1). One side of the baffle plate (11) and the baffle plate (12) are slidably connected to the inner wall of the empty tank (1). The top of the empty tank (1) is sequentially fixedly connected with an air inlet pipe (2) and an air outlet pipe (4). One-way valves are provided inside the air inlet pipe (2) and the air outlet pipe (4). One side of the one-way valve is fixedly connected to the upper part of the empty tank (1).

2. A compact gas-water separator for fuel cells according to claim 1, characterized in that: The one-way valve includes a limiting shell (14), the outer wall of which is fixedly connected to the top of the empty tank (1), a rotating shaft (16) is fixedly connected inside the limiting shell (14), a baffle plate (15) is symmetrically rotatably connected to the outer wall of the rotating shaft (16), a spring (17) is provided in the middle of the rotating shaft (16), and one end of the spring (17) is fixedly connected to the bottom of the baffle plate (15).

3. A compact gas-water separator for fuel cells according to claim 1, characterized in that: The liquid collection structure includes a liquid collection tank (7), the top of which is fixedly connected to the bottom of the empty tank (1), and a slide rod (18) is fixedly connected to the inner wall of the liquid collection tank (7).

4. A compact gas-water separator for fuel cells according to claim 3, characterized in that: The middle part of the slide rod one (18) is fixedly connected to the slide rod two (19), and the outer wall of the slide rod two (19) is slidably connected to the piston (21).

5. A compact gas-water separator for a fuel cell according to claim 4, characterized in that: The piston (21) is symmetrically fixedly connected to the top of a connecting rope (22), and a float (20) is fixedly connected to one end of the connecting rope (22).

6. A compact gas-water separator for fuel cells according to claim 5, characterized in that: The outer wall of the piston (21) is set at the bottom of the liquid collection tank (7), and a spring (8) is fixedly connected to the bottom of the piston (21).

7. A compact gas-water separator for fuel cells according to claim 6, characterized in that: One end of the spring (8) is fixedly connected to a limiting block (9), the top of the limiting block (9) is fixedly connected to the bottom of the slide bar (19), and the outer wall of the slide bar (19) is located in the middle of the spring (8).

8. A compact gas-water separator for a fuel cell according to claim 7, characterized in that: The outer wall of the liquid collection tank (7) is fixedly connected to a load-bearing plate (5), and the bottom of the load-bearing plate (5) is fixedly connected to a load-bearing column (6).

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