An improved gas-water separator for fuel cells

Abstract

This utility model discloses an improved gas-water separator for fuel cells, relating to the field of gas-water separation technology for fuel cells. It includes a housing, with a cover fixed to the upper end of the housing. A gas output pipe, fixedly connected to the cover, passes through the upper end of the cover. A gas-water input pipe passes through the bottom of the housing and is fixedly connected to the housing. A gas-water separation mechanism is located inside the housing and connected to the gas-water input pipe. A drive mechanism connected to the gas-water separation mechanism is located on the cover. A pressure relief valve is connected to the bottom of the housing. This utility model enables more thorough and efficient removal of moisture from the gas flow, and features a simple and reasonable design, fast separation speed, and high separation efficiency.

Description

Technical Field

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

[0002] The hydrogen subsystem is a crucial component of a fuel cell system, and the hydrogen cycle is a vital part of this subsystem. During the reaction process, the fuel cell stack discharges a mixture of gases at the hydrogen outlet, including unreacted hydrogen, water vapor, and liquid water. When recovering unreacted hydrogen, liquid water can enter the fuel cell stack along with the hydrogen, causing flooding and affecting stack efficiency. Therefore, a vapor-liquid separator is needed to remove the liquid water.

[0003] Common cyclone air-water separators have a relatively simple structure, and their separation efficiency deteriorates sharply under high flow conditions, thus affecting the entire system. Furthermore, drying the stagnant airflow slows down the separation process, resulting in low efficiency.

[0004] Therefore, an improved gas-water separator for fuel cells needs to be designed. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an improved gas-water separator for fuel cells.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An improved gas-water separator for fuel cells includes a housing, a cover fixed to the upper end of the housing, a gas output pipe fixedly connected to the upper end of the cover, a gas-water input pipe fixedly connected to the housing at the bottom, a gas-water separation mechanism inside the housing connected to the gas-water input pipe, a drive mechanism connected to the gas-water separation mechanism on the cover, and a pressure relief valve connected to the bottom of the housing.

[0008] As a further improvement of this utility model, the gas-water separation mechanism includes a rotating drum, a drum cover fixed to the upper end of the rotating drum, a fixed cylinder fixed to the upper end of the drum cover, a slot at the upper end of the fixed cylinder, an air distribution pipe penetrating through the bottom of the rotating drum, the air distribution pipe being fixedly connected to the rotating drum, the lower end of the air distribution pipe being connected to the gas-water input pipe through a rotary joint, a water absorption core being provided inside the rotating drum, first through holes being evenly distributed on the side wall of the rotating drum, and second through holes being evenly distributed on the side wall of the air distribution pipe.

[0009] As a further improvement of this utility model, the driving mechanism includes a rotating rod that passes through the cover body and is rotatably connected to the cover body. A motor is installed at the upper end of the cover body, the output shaft of the motor is fixed at the upper end of the rotating rod, and a plug rod that mates with a slot is fixed at the lower end of the rotating rod.

[0010] As a further improvement of this utility model, the insertion rod is a rectangular rod, and the slot is a rectangular groove.

[0011] As a further improvement of this utility model, four second fixing bolts are provided through the upper end of the cylinder cover, and the second fixing bolts are screwed to the upper end of the rotating cylinder.

[0012] As a further improvement of this utility model, four first fixing bolts are provided through the upper end of the cover, and the first fixing bolts are screwed to the upper end of the shell.

[0013] The beneficial effects of this utility model are:

[0014] By setting up a gas-water separation mechanism, when the fuel cell system is working, the gas-water mixture enters the gas distribution pipe through the gas-water input pipe, and then the gas-water mixture absorbs water through the water intake core, trapping the water in the gas-water mixture in the water intake core. Then the gas enters the inside of the casing through the first through hole and is output through the gas output pipe.

[0015] By setting up a drive mechanism and starting the motor, the rotating rod can be driven to rotate. Since the rod is inserted into the slot, it drives the fixed cylinder to rotate. The fixed cylinder drives the cylinder cover and the rotating cylinder to rotate. Under the action of centrifugal force, the water inside the water-absorbing core can be thrown out. The water enters the shell through the first through hole and settles at the bottom of the shell. When the water volume increases and exceeds the pressure of the pressure relief valve, the excess water can be discharged through the pressure relief valve.

[0016] This invention enables more thorough and efficient removal of moisture from airflow, and features a simple and reasonable design, fast separation speed, and high separation efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an improved gas-water separator for fuel cells proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the gas-water separation mechanism, gas-water input pipe, and drive mechanism of an improved gas-water separator for fuel cells proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the rotating rod, insert rod, fixing cylinder, and slot of an improved gas-water separator for fuel cells proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the rotating drum, first through hole, gas distribution pipe, second through hole, and water absorption core of an improved gas-water separator for fuel cells proposed in this utility model.

[0021] In the diagram: 1. Shell, 2. Cover, 3. First fixing bolt, 4. Motor, 5. Gas output pipe, 6. Pressure relief valve, 7. Gas and water input pipe, 8. Rotating rod, 9. Fixing cylinder, 10. Rotating cylinder, 11. Cylinder cover, 12. Second fixing bolt, 13. First through hole, 14. Gas distribution pipe, 15. Rotary joint, 16. Insert rod, 17. Slot, 18. Second through hole, 19. Water suction core. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-4 An improved gas-water separator for fuel cells includes a housing 1, a cover 2 fixed to the upper end of the housing 1, four first fixing bolts 3 passing through the upper end of the cover 2, the first fixing bolts 3 being screwed onto the upper end of the housing 1, allowing the cover 2 to be disassembled and installed, a gas output pipe 5 passing through the upper end of the cover 2 and fixedly connected to the cover 2, a gas-water input pipe 7 passing through the bottom of the housing 1 and fixedly connected to the housing 1, a gas-water separation mechanism inside the housing 1 connected to the gas-water input pipe 7, a drive mechanism connected to the gas-water separation mechanism on the cover 2, and a pressure relief valve 6 connected to the bottom of the housing 1.

[0024] In this utility model, the gas-water separation mechanism includes a rotating drum 10, a drum cover 11 fixed to the upper end of the rotating drum 10, four second fixing bolts 12 passing through the upper end of the drum cover 11, the second fixing bolts 12 being screwed onto the upper end of the rotating drum 10, so that the drum cover 11 can be disassembled and assembled, a fixing cylinder 9 fixed to the upper end of the drum cover 11, a slot 17 provided at the upper end of the fixing cylinder 9, an air distribution pipe 14 passing through the inner bottom of the rotating drum 10, the air distribution pipe 14 being fixedly connected to the rotating drum 10, the lower end of the air distribution pipe 14 being connected to the gas-water input pipe 7 through a rotary joint 15, a water-absorbing core 19 being provided inside the rotating drum 10, the water-absorbing core 19 being a water-absorbing cotton core, using a physical method to absorb water, first through holes 13 being evenly distributed on the side wall of the rotating drum 10, and second through holes 18 being evenly distributed on the side wall of the air distribution pipe 14.

[0025] The driving mechanism includes a rotating rod 8 that passes through the cover 2 and is rotatably connected to the cover 2. A motor 4 is installed at the upper end of the cover 2, and the output shaft of the motor 4 is fixed at the upper end of the rotating rod 8. A plug rod 16 that mates with a slot 17 is fixed at the lower end of the rotating rod 8. The plug rod 16 is a rectangular rod, and the slot 17 is a rectangular groove. When the plug rod 16 is inserted into the slot 17, the rotating rod 8 can rotate the fixed cylinder 9.

[0026] When this utility model is in use, the gas-water mixture enters the gas distribution pipe 14 through the gas-water input pipe 7 and enters the water intake core 19 through the second through hole 18. After the gas-water mixture absorbs water through the water intake core 19, the water in the gas-water mixture is trapped in the water intake core 19. Then, the gas enters the inside of the housing 1 through the first through hole 13 and is output through the gas output pipe 5. The motor 4 is started, which can drive the rotating rod 8 to rotate. Since the insertion rod 16 is inserted into the slot 17, it drives the fixed cylinder 9 to rotate. The fixed cylinder 9 drives the cylinder cover 11 and the rotating cylinder 10 to rotate. Under the action of centrifugal force, the water inside the water intake core 19 can be thrown out. The water enters the inside of the housing 1 through the first through hole 13 and is deposited at the bottom of the housing 1. When the water volume increases and exceeds the pressure of the pressure relief valve 6, the excess water can be discharged through the pressure relief valve 6.

[0027] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An improved gas-water separator for fuel cells, comprising a housing (1), characterized in that, The upper end of the housing (1) is fixed with a cover (2), and the upper end of the cover (2) is provided with a gas output pipe (5) fixedly connected to the cover (2). The bottom of the housing (1) is provided with a gas-water input pipe (7), which is fixedly connected to the housing (1). The inside of the housing (1) is provided with a gas-water separation mechanism, which is connected to the gas-water input pipe (7). The cover (2) is provided with a drive mechanism connected to the gas-water separation mechanism. The bottom of the housing (1) is connected with a pressure relief valve (6).

2. The improved gas-water separator for fuel cells according to claim 1, characterized in that, The gas-water separation mechanism includes a rotating drum (10), with a cover (11) fixed to the upper end of the rotating drum (10), a fixing cylinder (9) fixed to the upper end of the cover (11), a slot (17) provided at the upper end of the fixing cylinder (9), an air distribution pipe (14) passing through the bottom of the rotating drum (10), the air distribution pipe (14) being fixedly connected to the rotating drum (10), the lower end of the air distribution pipe (14) being connected to the gas-water input pipe (7) through a rotary joint (15), a water absorption core (19) provided inside the rotating drum (10), first through holes (13) evenly distributed on the side wall of the rotating drum (10), and second through holes (18) evenly distributed on the side wall of the air distribution pipe (14).

3. An improved gas-water separator for fuel cells according to claim 2, characterized in that, The driving mechanism includes a rotating rod (8) that passes through the cover (2), the rotating rod (8) being rotatably connected to the cover (2), a motor (4) being installed at the upper end of the cover (2), the output shaft of the motor (4) being fixed at the upper end of the rotating rod (8), and a plug (16) that mates with the slot (17) being fixed at the lower end of the rotating rod (8).

4. An improved gas-water separator for fuel cells according to claim 3, characterized in that, The insert (16) is a rectangular rod, and the slot (17) is a rectangular groove.

5. An improved gas-water separator for fuel cells according to claim 2, characterized in that, The upper end of the cylinder cover (11) is provided with four second fixing bolts (12), which are screwed onto the upper end of the rotating cylinder (10).

6. An improved gas-water separator for fuel cells according to claim 1, characterized in that, The upper end of the cover (2) is provided with four first fixing bolts (3), which are screwed onto the upper end of the shell (1).

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