Rifling type gas mixer

Abstract

The utility model discloses a rifling type gas mixer which comprises a mixer body, a first gas inlet pipe, a second gas inlet pipe, a gas outlet end body and a gas outlet pipe. The mixer body is connected with the gas outlet end body; the first gas inlet pipe is arranged on one side of the mixer body, and the second gas inlet pipe is arranged on the other side of the mixer body; the gas outlet pipe is arranged in the gas outlet end body, and the gas outlet pipe is communicated with the mixer body; a first rifling is arranged on the inner surface of the first air inlet pipe; a second rifling is arranged on the inner surface of the second air inlet pipe; a third rifling is arranged on the inner surface of the air outlet pipe. The gas mixing device is simple in structure, convenient to disassemble, assemble and maintain, good in stability, economical, safe and practical, the gas mixing capacity can be greatly improved, gas mixing is more sufficient and uniform, the gas mixing device can be applied to a fuel cell stack, and the actual use requirement can be well met.

Description

Technical Field

[0001] This utility model belongs to the field of battery technology, and in particular relates to a rifling-type gas mixer. Background Technology

[0002] A fuel cell is a device that directly converts chemical energy into electrical energy through an electrochemical reaction. It is characterized by high efficiency and environmental friendliness, and can be applied in transportation, stationary power generation, and portable power sources. With technological advancements and cost reductions, fuel cells have broad application prospects in the clean energy field, especially in transportation and stationary power generation.

[0003] In fuel cells, the gas needs to be humidified before entering the fuel cell stack, such as by air humidification or hydrogen humidification, and it is also necessary to ensure that the gas is fully mixed before entering the stack.

[0004] In the prior art, in order to improve the gas mixing ability, the gas is mixed through a mixing chamber before entering the fuel cell stack. However, this mixing method often results in insufficient gas mixing, which causes the gas concentration and humidity to change continuously during the operation of the fuel cell stack, thereby affecting the performance of the fuel cell stack. Utility Model Content

[0005] This utility model provides a rifling-type gas mixer, which aims to solve the problems of uneven gas mixing before entering the existing fuel cell stack, and the continuous changes in gas concentration and humidity during stack operation, which affect the stack performance.

[0006] To solve the above-mentioned technical problems, this utility model provides a rifling-type gas mixer, including a mixer body, a first inlet pipe, a second inlet pipe, an outlet end body, and an outlet pipe;

[0007] The mixer body is connected to the air outlet body; the first air inlet pipe is disposed on one side of the mixer body, and the second air inlet pipe is disposed on the other side of the mixer body; the air outlet pipe is disposed in the air outlet body, and the air outlet pipe is connected to the mixer body.

[0008] The inner surface of the first intake pipe is provided with a first rifling groove; the inner surface of the second intake pipe is provided with a second rifling groove; and the inner surface of the exhaust pipe is provided with a third rifling groove.

[0009] In a preferred embodiment, the rotation directions of the first rifling, the second rifling, and the third rifling are all the same.

[0010] In a preferred embodiment, the rotation direction is either clockwise or counterclockwise. The first, second, and third rifling grooves all rotate in the same direction, ensuring maximum gas mixing.

[0011] In a preferred embodiment, the mixer body is a hollow body; the inner diameter of the mixer body is larger than the diameter of the outlet pipe.

[0012] In a preferred embodiment, the mixer body is funnel-shaped at one end near the outlet pipe; the inner diameter of the funnel-shaped configuration gradually decreases from the mixer body to the outlet body.

[0013] In a preferred embodiment, the minimum inner diameter of the funnel-shaped arrangement is larger than the diameter of the air outlet pipe.

[0014] In a preferred embodiment, the first intake pipe and the second intake pipe are staggered.

[0015] In a preferred embodiment, the end of the air outlet pipe that is away from the mixer body protrudes from the air outlet body.

[0016] In a preferred embodiment, the mixer body, the first air inlet pipe, the second air inlet pipe, the air outlet body, and the air outlet pipe are all integrally formed.

[0017] In a preferred embodiment, the first air inlet pipe and the second air inlet pipe are respectively connected to the mixer body; the air outlet pipe is located at the center of the air outlet body.

[0018] Compared with the prior art, the technical solution of this utility model embodiment has the following beneficial effects: This application provides a first and second inlet pipe on the mixer body, and an outlet pipe on the outlet end body. Rifling is provided on the inner surfaces of the first, second, and outlet pipes, so that before the gas enters the mixer body from the inlet pipe, it passes through the first or second rifling, causing the gas to rotate. This rotation greatly enhances the mixing capacity, resulting in more thorough gas mixing. After mixing within the mixer body, the gas passes through a third rifling in the outlet pipe, where it rotates again for further thorough mixing. This application has a simple structure, is easy to assemble and disassemble, convenient to maintain, has good stability, and is economical, safe, and practical. It can greatly improve the gas mixing capacity and can be applied to fuel cell stacks, well meeting the needs of practical use. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a rifling-type gas mixer according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of the rifling gas mixer from another angle;

[0022] Figure 3 for Figure 1 A cross-sectional schematic diagram of a rifling-type gas mixer;

[0023] Figure 4 for Figure 1 A cross-sectional view of the rifling gas mixer from another angle.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of the embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0026] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] Specifically, such as Figures 1 to 4 As shown, this utility model embodiment provides a rifling-type gas mixer, including a mixer body 10, a first inlet pipe 20, a second inlet pipe 30, an outlet body 40, and an outlet pipe 50;

[0028] The mixer body 10 is connected to the air outlet body 40; the first air inlet pipe 20 is disposed on one side of the mixer body 10, and the second air inlet pipe 30 is disposed on the other side of the mixer body 10; the air outlet pipe 50 is disposed inside the air outlet body 40, and the air outlet pipe 50 is connected to the mixer body 10.

[0029] The inner surface of the first intake pipe 20 is provided with a first rifling groove 21; the inner surface of the second intake pipe 30 is provided with a second rifling groove 31; and the inner surface of the exhaust pipe 50 is provided with a third rifling groove 51.

[0030] This application provides a first and second inlet pipe on the mixer body, and an outlet pipe on the outlet end body. Rifling is applied to the inner surfaces of the first, second, and outlet pipes. Before entering the mixer body from the inlet pipe, the gas passes through the first or second rifling, causing it to rotate. This rotation significantly enhances the mixing capacity, resulting in more thorough mixing. After mixing within the mixer body, the gas passes through a third rifling in the outlet pipe, where it rotates again, further improving the mixing process.

[0031] In this embodiment, the end of the mixer body furthest from the outlet pipe is sealed. This configuration creates a closed space within the mixer to allow for the mixing of gases when the gas mixer is connected to a gas source and a fuel cell stack. A first rifling groove extends from one end of the first inlet pipe to the other, a second rifling groove extends from one end of the second inlet pipe to the other, and a third rifling groove extends from one end of the outlet pipe to the other. This significantly increases the gas mixing area and time, further ensuring thorough and uniform gas mixing.

[0032] The density, depth, and rotation angle of the first rifling groove 21 can be set according to actual usage requirements. The density, depth, and rotation angle of the second rifling groove 31 can be set according to actual usage requirements. The density, depth, and rotation angle of the third rifling groove 51 can be set according to actual usage requirements. The density, depth, and rotation angle of the three rifling grooves can be the same or different.

[0033] In a preferred embodiment, the rotation directions of the first rifling groove 21, the second rifling groove 31, and the third rifling groove 51 are all the same. This ensures maximum mixing of the gases.

[0034] In a preferred embodiment, the rotation direction is either clockwise or counterclockwise. The first rifling groove 21, the second rifling groove 31, and the third rifling groove 51 all rotate in the same direction, ensuring maximum gas mixing. For example, in this embodiment, the first rifling groove 21, the second rifling groove 31, and the third rifling groove 51 all rotate clockwise. In other embodiments, the first rifling groove 21, the second rifling groove 31, and the third rifling groove 51 may also rotate counterclockwise.

[0035] In a preferred embodiment, the mixer body 10 is a hollow body; the inner diameter of the mixer body 10 is larger than the diameter of the gas outlet pipe 50. This allows for sufficient space within the mixer body to accommodate the gas, ensuring thorough and uniform gas mixing.

[0036] In a preferred embodiment, the mixer body 10 is funnel-shaped at one end near the outlet pipe 50; the inner diameter of the funnel-shaped configuration gradually decreases from the mixer body 10 to the outlet body 40. This allows the mixed gas to remain within the mixer body for a longer period, ensuring thorough and uniform gas mixing.

[0037] In a preferred embodiment, the minimum inner diameter of the funnel-shaped configuration is larger than the diameter of the outlet pipe 50. This allows the mixed gas to remain within the mixer body for a longer period, ensuring thorough and uniform mixing.

[0038] In a preferred embodiment, the first intake pipe 20 and the second intake pipe 30 are staggered. This allows the mixed gas to remain within the mixer body for a longer period, ensuring thorough and uniform mixing. In this embodiment, the first intake pipe 20 and the second intake pipe 30 are on the same horizontal plane, ensuring uniform air intake and allowing the mixed gas to be fully mixed within the mixer body.

[0039] In a preferred embodiment, the end of the outlet pipe 50 away from the mixer body 10 protrudes from the outlet end body 40. This arrangement facilitates the connection and disconnection of the mixer from the fuel cell stack.

[0040] In a preferred embodiment, the mixer body 10, the first air inlet pipe 20, the second air inlet pipe 30, the air outlet body 40, and the air outlet pipe 50 are all integrally formed. This arrangement facilitates the disassembly and maintenance of the mixer and improves its stability.

[0041] In a preferred embodiment, the first air inlet pipe 20 and the second air inlet pipe 30 are respectively connected to the mixer body 10; the air outlet pipe 50 is located at the center of the air outlet body 40. This ensures better and more thorough mixing of the gas.

[0042] This application features a simple structure, easy assembly and disassembly, convenient maintenance, good stability, and is economical, safe, and practical. It can greatly improve the mixing capacity of gases and can be applied to fuel cell stacks, thus well meeting the needs of practical use.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 rifling-type gas mixer, characterized in that, It includes a mixer body, a first air inlet pipe, a second air inlet pipe, an air outlet body, and an air outlet pipe; The mixer body is connected to the air outlet body; the first air inlet pipe is disposed on one side of the mixer body, and the second air inlet pipe is disposed on the other side of the mixer body; the air outlet pipe is disposed in the air outlet body, and the air outlet pipe is connected to the mixer body. The inner surface of the first intake pipe is provided with a first rifling groove; the inner surface of the second intake pipe is provided with a second rifling groove; and the inner surface of the exhaust pipe is provided with a third rifling groove.

2. The rifling-type gas mixer according to claim 1, characterized in that, The rotation directions of the first rifling, the second rifling, and the third rifling are all the same.

3. The rifling-type gas mixer according to claim 2, characterized in that, The rotation direction is either clockwise or counterclockwise.

4. The rifling-type gas mixer according to claim 1, characterized in that, The mixer body is hollow; the inner diameter of the mixer body is larger than the diameter of the outlet pipe.

5. The rifling-type gas mixer according to claim 1, characterized in that, The mixer body is funnel-shaped at one end near the outlet pipe; the inner diameter of the funnel-shaped configuration gradually decreases from the mixer body to the outlet body.

6. The rifling-type gas mixer according to claim 5, characterized in that, The minimum inner diameter of the funnel-shaped configuration is larger than the diameter of the air outlet pipe.

7. The rifling-type gas mixer according to claim 1, characterized in that, The first air intake pipe and the second air intake pipe are staggered.

8. The rifling-type gas mixer according to claim 1, characterized in that, The end of the air outlet pipe that is away from the mixer body protrudes from the air outlet body.

9. The rifling-type gas mixer according to claim 1, characterized in that, The mixer body, the first air inlet pipe, the second air inlet pipe, the air outlet body, and the air outlet pipe are all integrally formed.

10. The rifling-type gas mixer according to claim 1, characterized in that, The first air inlet pipe and the second air inlet pipe are respectively connected to the mixer body; the air outlet pipe is located at the center of the air outlet body.

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