Dual inert gas blender

By introducing spiral baffles and microporous mixing baffles into the gas mixer, as well as designing a pressure balancing component, the problem of insufficient mixing degree in existing gas mixers is solved, and the uniformity and stability of gas mixing are achieved.

CN224371126UActive Publication Date: 2026-06-19BINGHANG SAFETY TECH (TIANJIN) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BINGHANG SAFETY TECH (TIANJIN) CO LTD
Filing Date
2025-06-23
Publication Date
2026-06-19

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    Figure CN224371126U_ABST
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Abstract

This utility model discloses a dual inert gas mixer, including a mixing cylinder. A mixing turbulence component is fixedly installed inside the mixing cylinder, and a pressure balancing component is located outside the mixing cylinder and communicates with it. The mixing turbulence component includes multiple turbulence plates arranged in a spiral pattern, with turbulence channels formed between adjacent microporous structures. The surface of the turbulence plates has microporous structures with diameters ranging from 0.5 mm to 1 mm. This utility model relates to the field of gas mixer technology. The mixing turbulence component of this dual inert gas mixer significantly improves the uniformity of gas mixing. The spirally distributed turbulence plates and microporous structures work together to increase the turbulence intensity of the gas, allowing the two inert gases to fully contact and mix within the mixing chamber. Furthermore, the coordination between the guide groove and the turbulence channel further optimizes the gas flow path.
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Description

Technical Field

[0001] This utility model relates to the field of gas mixer technology, specifically a dual inert gas mixer. Background Technology

[0002] In industrial production, inert gases are often used to protect easily oxidized or flammable materials and equipment. In many processes, a single inert gas is insufficient to meet diverse needs, therefore it is necessary to mix two inert gases in a certain proportion.

[0003] The patent publication number CN218688213U discloses a portable gas mixer, which includes a mixing body, an exhaust hole through and provided at the center of the right side of the mixing body, a gas discharge pipe through and fixedly connected at the center of the right side of the mixing body, and the gas discharge pipe and the exhaust hole are connected, a first electric control valve is provided at the right side of the outer diameter of the gas discharge pipe, and a pressure gauge is provided at the left side of the outer diameter of the gas discharge pipe.

[0004] As shown in the above technology, existing gas mixing devices are mostly designed for general gases and have certain limitations in terms of mixing accuracy, stability and ease of operation. Especially in scenarios where the mixing ratio is required to be high, the mixing degree is insufficient and cannot meet the requirements. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a dual inert gas mixer, which solves the problem of insufficient mixing in existing gas mixers.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a dual inert gas mixer includes a mixing cylinder, a mixing turbulence component is provided inside the mixing cylinder, the mixing turbulence component is fixedly installed inside the mixing cylinder, and a pressure balancing component is provided outside the mixing cylinder, the pressure balancing component is connected to the mixing cylinder through a conduit;

[0007] The mixing turbulence assembly includes multiple turbulence plates that are spirally distributed and form turbulence channels between adjacent microporous structures. The surface of the turbulence plates is provided with microporous structures with a diameter ranging from 0.5 mm to 1 mm. The inner wall of the mixing cylinder is provided with a flow guide groove that extends along the length of the mixing cylinder and is spirally shaped. The flow guide groove is used in conjunction with the turbulence channels.

[0008] Preferably, the mixing turbulence assembly further includes upper and lower fixing frames and fixing rods. The lower fixing frame is fixedly connected to the inner surface of the mixing cylinder. Bolts are fixedly connected to the top and bottom of the fixing rod. The fixing rod is threadedly connected to the top of the upper fixing frame and threadedly connected to the bottom of the upper fixing frame via bolts.

[0009] Preferably, the surface of the fixing rod has multiple threaded holes arranged in a spiral pattern, and a fixing sleeve is fitted onto the surface of the fixing rod. The fixing sleeve is fixed at the position of the threaded hole by an internal hex bolt, and the deflector is fixedly connected to the surface of the fixing sleeve.

[0010] Preferably, the pressure balancing assembly includes a pressure tank fixedly installed outside the mixing cylinder, a piston slidably connected to the inner surface of the pressure tank, and a spring fixedly connected between the right side of the piston and the inner wall of the pressure tank.

[0011] Preferably, the left side of the pressure tank is connected to an exhaust pipe and an intake pipe. The intake pipe is connected to the mixing cylinder through a conduit, and the exhaust pipe is connected to the outside through a one-way valve.

[0012] Preferably, the top of the mixing cylinder is provided with two air inlet pipes, one on the left and one on the right, and each air inlet pipe is provided with a flow regulating valve. A controller is fixedly installed on the right side of the mixing cylinder.

[0013] Beneficial effects

[0014] This invention provides a dual inert gas mixer. Compared with the prior art, it has the following advantages:

[0015] 1. This dual inert gas mixer, through a mixing turbulence component including multiple turbulence plates, the turbulence plates are distributed in a spiral shape, and turbulence channels are formed between adjacent microporous structures. The surface of the turbulence plates is provided with microporous structures. The setting of the mixing turbulence component significantly improves the uniformity of gas mixing. The spiral distribution of turbulence plates and microporous structures work together to increase the turbulence intensity of the gas, so that the two inert gases can fully contact and mix in the mixing chamber. Furthermore, the cooperation between the guide groove and the turbulence channel further optimizes the gas flow path, reduces dead zones in the gas mixing process, and improves the mixing efficiency.

[0016] 2. This dual inert gas mixer includes a pressure tank fixedly installed outside the mixing cylinder via a pressure balancing component. A piston is slidably connected to the inner surface of the pressure tank, and a spring is fixedly connected between the right side of the piston and the inner wall of the pressure tank. The pressure balancing component effectively solves the problem of pressure fluctuation during the mixing process. The piston inside the pressure tank adjusts the pressure inside the mixing cylinder in real time through the elastic action of the spring, ensuring the stability of the gas mixing process and avoiding uneven mixing caused by pressure changes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the appearance of the present utility model;

[0018] Figure 2 This is a schematic diagram of the hybrid turbulence component of this utility model;

[0019] Figure 3 This is a partial schematic diagram of the hybrid turbulence component of this utility model;

[0020] Figure 4 This is a cross-sectional view of the pressure balancing component of this utility model.

[0021] In the diagram: 1. Mixing cylinder; 2. Inlet pipe; 3. Exhaust pipe; 4. Mixing turbulence assembly; 41. Fixing bracket; 42. Fixing rod; 43. Threaded hole; 44. Socket head bolt; 45. Fixing sleeve; 46. Turbine plate; 47. Microporous structure; 48. Guide channel; 5. Pressure balance assembly; 51. Pressure tank; 52. Piston; 53. Spring; 54. Exhaust pipe; 55. Inlet pipe; 56. One-way valve; 6. Conduit; 7. Flow regulating valve; 8. Controller. 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. 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.

[0023] Please see Figures 1-4 This dual inert gas mixer offers two technical solutions:

[0024] The first embodiment includes a mixing cylinder 1, with two air inlet pipes 2 on the top of the mixing cylinder 1, and a flow regulating valve 7 on each of the two air inlet pipes 2. A controller 8 is fixedly installed on the right side of the mixing cylinder 1, and a mixing turbulence assembly 4 is provided inside the mixing cylinder 1. The mixing turbulence assembly 4 is fixedly installed inside the mixing cylinder 1.

[0025] The mixing turbulence assembly 4 includes multiple turbulence plates 46, which are spirally distributed. A turbulence channel is formed between adjacent microporous structures 47. The surface of the turbulence plates 46 is provided with microporous structures, the diameter of which ranges from 0.5 mm to 1 mm. A flow guide groove 48 is provided on the inner wall of the mixing cylinder 1. The flow guide groove 48 extends along the length of the mixing cylinder 1 and is spirally shaped. The flow guide groove 48 is used in conjunction with the turbulence channel.

[0026] The mixing and turbulence assembly 4 also includes two fixing frames 41 and a fixing rod 42. The lower fixing frame 41 is fixedly connected to the inner surface of the mixing cylinder 1. The top and bottom of the fixing rod 42 are fixedly connected with bolts. The fixing rod 42 is threadedly connected to the top of the upper fixing frame 41 and to the bottom of the upper fixing frame 41 with bolts. The surface of the fixing rod 42 has multiple threaded holes 43, which are spirally distributed. The surface of the fixing rod 42 is fitted with a fixing sleeve 45, which is fixed at the position of the threaded hole 43 by an internal hex bolt 44. The turbulence plate 46 is fixedly connected to the surface of the fixing sleeve 45.

[0027] The mixing and turbulence component 4 significantly improves the uniformity of gas mixing. The spirally distributed turbulence plate 46 and the microporous structure 47 work together to increase the turbulence intensity of the gas, allowing the two inert gases to fully contact and mix in the mixing chamber. Furthermore, the coordination between the guide groove 48 and the turbulence channel further optimizes the gas flow path, reduces dead zones in the gas mixing process, and improves mixing efficiency.

[0028] The second embodiment differs from the first embodiment in that: a pressure balancing assembly 5 is provided outside the mixing cylinder 1. The pressure balancing assembly 5 is connected to the mixing cylinder 1 through a conduit 6. The pressure balancing assembly 5 includes a pressure tank 51 fixedly installed outside the mixing cylinder 1. A piston 52 is slidably connected to the inner surface of the pressure tank 51. A spring 53 is fixedly connected between the right side of the piston 52 and the inner wall of the pressure tank 51. An exhaust pipe 54 and an air inlet pipe 55 are connected to the left side of the pressure tank 51. The air inlet pipe 55 is connected to the mixing cylinder 1 through the conduit 6. The exhaust pipe 54 is connected to the outside through a one-way valve 56.

[0029] The pressure balancing component 5 effectively solves the problem of pressure fluctuation during the mixing process. The piston in the pressure tank 51 adjusts the pressure in the mixing cylinder 1 in real time through the elastic action of the spring 53, ensuring the stability of the gas mixing process and avoiding uneven mixing caused by pressure changes.

[0030] In use, the two gases enter the mixing cylinder 1 through the two inlet pipes 2 respectively. After entering the mixing turbulence assembly 4, they form a complex flow path under the action of the turbulence plate 46 and the guide groove 48. The spiral distribution of the turbulence plate 46 causes the gas to generate a swirling effect inside the mixing cylinder 1, while the microporous structure 47 further enhances the local turbulence intensity of the gas, promoting full contact and uniform mixing of the two inert gases. In addition, when the pressure inside the mixing cylinder 1 changes, the fixing rod 42 moves through the elastic action of the spring threaded hole 43. When the pressure inside the mixing cylinder 1 increases, the fixing rod 42 moves to the left, and some gas is discharged through the exhaust pipe 54; when the pressure inside the mixing cylinder 1 decreases, the fixing rod 42 moves to the right, and external gas is replenished into the mixing cylinder 1 through the inlet pipe 55, thereby maintaining the pressure balance inside the mixing cylinder 1.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual inert gas mixer, comprising a mixing cylinder (1), characterized in that: The mixing cylinder (1) is provided with a mixing turbulence assembly (4) inside, which is fixedly installed inside the mixing cylinder (1). The mixing cylinder (1) is provided with a pressure balancing assembly (5) outside, which is connected to the mixing cylinder (1) through a conduit (6). The mixing turbulence assembly (4) includes multiple turbulence plates (46), which are spirally distributed and form turbulence channels between adjacent microporous structures (47). The surface of the turbulence plates (46) is provided with microporous structures, the diameter of which ranges from 0.5 mm to 1 mm. The inner wall of the mixing cylinder (1) is provided with a flow guide groove (48), which extends along the length of the mixing cylinder (1) and is spirally shaped. The flow guide groove (48) is used in conjunction with the turbulence channels.

2. The dual inert gas mixer according to claim 1, characterized in that: The mixing turbulence assembly (4) also includes two upper and lower fixing frames (41) and a fixing rod (42). The lower fixing frame (41) is fixedly connected to the inner surface of the mixing cylinder (1). The top and bottom of the fixing rod (42) are fixedly connected with bolts. The fixing rod (42) is threadedly connected to the top of the upper fixing frame (41) and the fixing rod (42) is threadedly connected to the bottom of the upper fixing frame (41) with bolts.

3. The dual inert gas mixer according to claim 2, characterized in that: The surface of the fixing rod (42) is provided with multiple threaded holes (43), and the threaded holes (43) are spirally distributed. The surface of the fixing rod (42) is fitted with a fixing sleeve (45), and the fixing sleeve (45) is fixed at the position of the threaded hole (43) by an internal hex bolt (44). The baffle (46) is fixedly connected to the surface of the fixing sleeve (45).

4. The dual inert gas mixer according to claim 1, characterized in that: The pressure balancing assembly (5) includes a pressure tank (51) fixedly installed outside the mixing cylinder (1), a piston (52) is slidably connected to the inner surface of the pressure tank (51), and a spring (53) is fixedly connected between the right side of the piston (52) and the inner wall of the pressure tank (51).

5. A dual inert gas mixer according to claim 4, characterized in that: The pressure tank (51) has an exhaust pipe (54) and an air inlet pipe (55) connected to its left side. The air inlet pipe (55) is connected to the mixing cylinder (1) through a conduit (6), and the exhaust pipe (54) is connected to the outside through a one-way valve (56).

6. The dual inert gas mixer according to claim 1, characterized in that: The top of the mixing cylinder (1) is provided with two air inlet pipes (2) on the left and right, and each of the two air inlet pipes (2) is provided with a flow regulating valve (7). A controller (8) is fixedly installed on the right side of the mixing cylinder (1).