Rifling type gas mixer

Abstract

The rifling type gas mixer 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] The invention belongs to the technical field of batteries, and in particular relates to a rifling type gas mixer. Background Art

[0002] A fuel cell is a device that converts chemical energy directly into electrical energy. It achieves energy conversion through electrochemical reactions. It is highly efficient and environmentally friendly and can be used in transportation, fixed power generation, portable power sources, and other fields. With technological advances and cost reductions, fuel cells have broad application prospects in the field of clean energy, especially in transportation and fixed power generation.

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

[0004] In the prior art, in order to improve the mixing ability of gases, gases are mixed through a mixing chamber before entering the fuel cell stack. This mixing method often results in insufficient gas mixing, causing the concentration and humidity of the gas to continuously change during the operation of the fuel cell stack, thereby affecting the performance of the fuel cell stack. Summary of the invention

[0005] The embodiment of the present invention provides a rifling type gas mixer, which aims to solve the problems of uneven mixing of gases before entering the fuel cell stack, causing the concentration and humidity of the gas to change continuously during the operation of the stack, thereby affecting the performance of the stack.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides a rifling type gas mixer, comprising a mixer body, a first air inlet pipe, a second air inlet pipe, an air outlet end body and an air outlet pipe;

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

[0008] The first air inlet pipe is provided with a first rifling on its inner surface; the second air inlet pipe is provided with a second rifling on its inner surface; and the air outlet pipe is provided with a third rifling on its inner surface.

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

[0010] As a preferred embodiment, the rotation direction is clockwise or counterclockwise. The rotation directions of the first rifling, the second rifling and the third rifling are all the same, which can ensure maximum mixing of the gas.

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

[0012] As a preferred embodiment, one end of the mixer body close to the air outlet pipe is funnel-shaped; and the inner diameter of the funnel-shaped arrangement gradually decreases from the mixer body to the air outlet end body.

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

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

[0015] As a preferred embodiment, one end of the air outlet pipe away from the mixer body is protruded from the air outlet end body.

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

[0017] As 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 arranged at the center of the air outlet end body.

[0018] Compared with the prior art, the technical solution of the embodiment of the present invention has the following beneficial effects: the present application sets a first air inlet pipe and a second air inlet pipe on the mixer body, sets an air outlet pipe on the air outlet end body, and sets rifling on the inner surfaces of the first air inlet pipe, the second air inlet pipe and the air outlet pipe, so that before the gas enters the mixer body from the air inlet pipe, it passes through the first rifling or the second rifling, and the gas will rotate. The rotating gas can greatly improve its mixing ability, so that the gas mixing is more sufficient. After the gas is mixed in the mixer body, it passes through the third rifling in the outlet pipe, and rotates again to be further mixed more fully. The present application has a simple structure, is easy to disassemble and assemble, is easy to maintain, has good stability, is economical, safe and practical, can greatly improve the mixing ability of the gas, can be applied to fuel cell stacks, and well meet the needs of actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 It 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 structural diagram of a rifling type gas mixer from another angle;

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

[0023] Figure 4 for Figure 1 A schematic diagram of the cross-sectional structure of a rifling type gas mixer from another angle.

[0024] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0027] Specifically, Figures 1 to 4 As shown, an embodiment of the present invention provides a rifling type gas mixer, comprising a mixer body 10, a first air inlet pipe 20, a second air inlet pipe 30, an air outlet end body 40 and an air outlet pipe 50;

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

[0029] The first air inlet pipe 20 is provided with a first rifling 21 on its inner surface; the second air inlet pipe 30 is provided with a second rifling 31 on its inner surface; and the air outlet pipe 50 is provided with a third rifling 51 on its inner surface.

[0030] The present application provides a first air inlet pipe and a second air inlet pipe on the mixer body, an air outlet pipe on the air outlet end body, and rifling on the inner surfaces of the first air inlet pipe, the second air inlet pipe, and the air outlet pipe, so that before the gas enters the mixer body from the air inlet pipe, it passes through the first rifling or the second rifling, and the gas rotates. The rotating gas can greatly improve its mixing ability, so that the gas is mixed more fully. After the gas is mixed in the mixer body, it passes through the third rifling in the outlet pipe, and rotates again to be further mixed more fully.

[0031] In the embodiment of the present application, the mixer body is closed away from one end of the outlet pipe. In this way, when the gas mixer is connected to the gas source and the fuel cell stack, a closed space for the mixed gas is formed in the entire mixer. The first rifling extends from one end of the first inlet pipe to the other end of the first inlet pipe, the second rifling extends from one end of the second inlet pipe to the other end of the second inlet pipe, and the third rifling extends from one end of the outlet pipe to the other end of the outlet pipe. In this way, the gas mixing area and gas mixing time can be greatly improved, further ensuring sufficient and uniform gas mixing.

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

[0033] As a preferred embodiment, the rotation direction of the first rifling 21, the rotation direction of the second rifling 31 and the rotation direction of the third rifling 51 are all the same. In this way, the maximum mixing of the gas can be ensured.

[0034] As a preferred embodiment, the rotation direction is a clockwise rotation direction or a counterclockwise rotation direction. The rotation directions of the first rifling 21, the second rifling 31 and the third rifling 51 are all the same, which can ensure the maximum mixing of the gas. For example, in this embodiment, the rotation directions of the first rifling 21, the second rifling 31 and the third rifling 51 are all clockwise rotation directions. In other embodiments, the rotation directions of the first rifling 21, the second rifling 31 and the third rifling 51 can also be counterclockwise rotation directions.

[0035] As a preferred embodiment, the mixer body 10 is a hollow body, and the inner diameter of the mixer body 10 is larger than the diameter of the gas outlet pipe 50. In this way, sufficient space for accommodating gas can be formed in the mixer body to ensure sufficient and uniform mixing of the gas.

[0036] As a preferred embodiment, the end of the mixer body 10 close to the gas outlet pipe 50 is funnel-shaped; the inner diameter of the funnel-shaped configuration gradually decreases from the mixer body 10 to the gas outlet end body 40. In this way, the mixed gas can stay in the mixer body for a longer time, ensuring sufficient and uniform mixing of the gas.

[0037] As a preferred embodiment, the minimum inner diameter of the funnel-shaped arrangement is larger than the diameter of the gas outlet pipe 50. In this way, the mixed gas can stay in the mixer body for a longer time, ensuring sufficient and uniform mixing of the gas.

[0038] As a preferred embodiment, the first air inlet pipe 20 and the second air inlet pipe 30 are staggered. In this way, the mixed gas can stay in the mixer body for a longer time, ensuring sufficient and uniform mixing of the gas. In the embodiment of the present application, the first air inlet pipe 20 and the second air inlet pipe 30 are on the same horizontal plane, which ensures uniform intake and allows the mixed gas to be fully mixed in the mixer body.

[0039] As a preferred embodiment, the outlet pipe 50 is disposed at one end away from the mixer body 10 and protrudes out of the outlet end body 40. This arrangement facilitates the connection and disassembly of the mixer and the fuel cell stack.

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

[0041] As 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 arranged at the center of the air outlet end body 40. In this way, it is possible to better ensure that the gas is mixed sufficiently and evenly.

[0042] The present application has a simple structure, is easy to disassemble and assemble, is convenient to maintain, has good stability, is economical, safe and practical, can greatly improve the gas mixing ability, can be applied to fuel cell stacks, and well meet the needs of actual use.

[0043] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

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 end body and an air outlet pipe; The mixer body is connected to the outlet end body; the first air inlet pipe is arranged on one side of the mixer body, and the second air inlet pipe is arranged on the other side of the mixer body; the outlet pipe is arranged in the outlet end body, and the outlet pipe is connected to the mixer body; The first air inlet pipe is provided with a first rifling on its inner surface; the second air inlet pipe is provided with a second rifling on its inner surface; and the air outlet pipe is provided with a third rifling on its inner surface.

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

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

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

5. The rifling type gas mixer according to claim 1, characterized in that: One end of the mixer body close to the air outlet pipe is arranged in a funnel shape; in the direction from the mixer body to the air outlet end body, the inner diameter of the funnel-shaped arrangement gradually decreases.

6. The rifled gas mixer according to claim 1, characterized in that: The minimum inner diameter of the funnel-shaped arrangement is greater 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 arranged in a staggered manner.

8. The rifling type gas mixer according to claim 1, characterized in that: One end of the air outlet pipe away from the mixer body protrudes out of the air outlet end 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 end body and the air outlet pipe are all integrally formed.

10. The rifled 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 arranged at the center of the air outlet end body.

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