Multistage reflux mixing device for gas production

Abstract

The utility model relates to the technical field of gas production, concretely is gas production with multistage backflow mixing device, including gas production device body, the right side of gas production device body equidistance distribution has three gas mixing boxes, and the front end of each gas mixing box is hingedly provided with sealing mechanism, and the top end of the rightmost gas mixing box is installed with backflow pipe, and the gas mixing box includes the box, the gas pipe of installing in the middle position of the upper surface of the box outside and the support plate of welding in the inside lower side of the box. The utility model mixes the gas of gas production device body production with other gas, makes the gas of production can adapt more application scene, mixes lastly through backflow pipe and sends back the mixed gas of completing mixing to the first gas mixing box with the raw material gas of sending in again, can break the problem that the local concentration of fresh raw material gas is too high, and the turbulent flow degree of gas is enhanced through circulation flow.

Description

Technical Field

[0001] This utility model relates to the field of gas production technology, specifically to a multi-stage reflux mixing device for gas production. Background Technology

[0002] In industrial production and scientific research, many processes require the use of mixed gases. The uniformity and precision of gas mixing have a profound impact on the preparation of multi-component mixed gases, the preparation of food packaging gases, and the treatment of flammable and toxic gases in industry. For example, in premixed combustion in porous media burners, the uniformity of gas mixing is of great significance for improving fuel combustion efficiency and reducing pollutant emissions.

[0003] Utility model patent CN221460359U discloses a hydrogen sulfide gas production device. This utility model includes a barrel body with a fixed shaft fixedly connected to the center of its top plate; a U-shaped track disposed within the barrel body and connected to the top plate; a stirring plate disposed at the bottom of the barrel body and fitted to it, the stirring plate connected to a vertical shaft, the top of which is located within the U-shaped track; a gear disposed below the fixed shaft, the gear bearing connected to the fixed shaft, the gear connected to a mounting plate, the mounting plate connected to a slot, a sliding rod nested within the slot, and the sliding rod connected to a block. This utility model relates to the field of hydrogen sulfide gas processing technology, and particularly to a hydrogen sulfide gas production device. Addressing the shortcomings of existing technologies, this utility model develops a hydrogen sulfide gas production device that can stir the raw materials at the barrel wall, ensuring sufficient contact between sulfur-containing waste and hydrogen sulfide bacteria, thereby achieving hydrogen sulfide gas production.

[0004] Although the above-mentioned utility model can realize the production of hydrogen sulfide gas, after the gas is produced, it is usually mixed with other gases in a specific ratio according to different uses of the gas. For example, when using hydrogen sulfide gas to produce high-purity sulfur, it is necessary to mix hydrogen sulfide gas with air in a precise ratio first. In order to better mix the produced gas with other gases, we propose a multi-stage reflux mixing device for gas production. Utility Model Content

[0005] This invention provides a multi-stage reflux mixing device for gas production to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-stage reflux mixing device for gas production includes a gas production device body. Three gas mixing boxes are equidistantly distributed on the right side of the gas production device body. Each gas mixing box is hinged to a sealing mechanism at its front end. A reflux pipe is installed at the top of the rightmost gas mixing box.

[0008] The gas mixing chamber includes a chamber body, an exhaust pipe installed at the middle position of the upper outer surface of the chamber body, and a support plate welded to the lower inner side of the chamber body. A first intake pipe is installed at the lower end of the left side surface of the chamber body, and a second intake pipe is installed at the lower end of the rear side surface of the chamber body.

[0009] As a preferred technical solution, the first air inlet pipe connected to the gas mixing box at the far left is connected to the air outlet of the gas production device body, and the second air inlet pipe is used to input other mixed gases.

[0010] This setting allows the second air intake pipe to be used specifically for introducing other mixed gases, enabling targeted introduction of "base gas + other gases". The types and proportions of the introduced gases can be flexibly adjusted according to different mixing requirements.

[0011] As a preferred technical solution, the lowermost ends of both the second air intake pipe and the first air intake pipe are located on the lower side of the lower surface of the support plate, and the upper surface of the support plate is provided with through holes for the installation of the first air intake pipe and the second air intake pipe.

[0012] This feature, with through holes in the support plate for pipe installation, ensures the stability of the pipe installation, prevents the pipe from shifting due to vibration or other factors during gas transportation, and allows for a more regular pipe layout, optimizing the use of space inside the enclosure and facilitating subsequent maintenance of components inside the enclosure.

[0013] As a preferred technical solution, the sealing mechanism includes a door and a handle installed at the right end of the middle position of the front surface of the door, and a sealing gasket is affixed to the contact position between the door and the box body.

[0014] This feature, with its sealing gasket at the contact point between the door and the enclosure, significantly enhances the seal between them, effectively preventing leakage of the mixed gas inside the enclosure.

[0015] As a preferred technical solution, the handle is cylindrical in shape, a disc-shaped auxiliary piece is welded to the top of the handle, and a sponge sleeve is wrapped around the outer surface of the handle.

[0016] This feature, with its sponge sleeve covering the outer surface, increases the friction between the hand and the handle, further enhancing grip stability. At the same time, the soft sponge material reduces hard contact between the hand and the handle, improving operational comfort, making it especially suitable for scenarios where staff frequently open and close the cabinet door.

[0017] As a preferred technical solution, the three gas mixing boxes are sequentially equipped with a first gas mixing mechanism, a second gas mixing mechanism and a third gas mixing mechanism from left to right. The first gas mixing mechanism uses a static gas mixer, the second gas mixing mechanism uses a porous ring-type gas distributor and a mixing pipe is sleeved on the top of the porous ring-type gas distributor, and the third gas mixing mechanism uses a Venturi tube mixer.

[0018] This setup, with its multi-stage differentiated mixing mechanism combination, matches the optimal mixing method to meet the needs of different stages of gas mixing.

[0019] As a preferred technical solution, one end of the return pipe is connected to the outlet pipe at the top of the rightmost gas mixing box, and the other end is connected to the first inlet pipe of the leftmost gas mixing box.

[0020] This setting, by establishing a reflux circulation, creates a closed loop in the mixing system, reducing the emission of insufficiently mixed gases, minimizing environmental impact, and improving the energy efficiency of the device, thus meeting the production requirements for energy conservation and emission reduction.

[0021] As a preferred technical solution, a control valve is provided at the left end of the return pipe, and between the gas mixing boxes, the first inlet pipe is connected to the outlet pipe of the other gas mixing box.

[0022] This setting, with the control valve on the reflux pipe, allows for flexible control of the reflux gas flow rate and timing. Based on the gas mixing quality test results, staff can precisely adjust the reflux ratio to avoid energy waste caused by excessive reflux or insufficient reflux affecting the mixing quality, thereby improving the controllability and flexibility of the device operation.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] 1. Mix the gas produced by the gas production device with other gases to make the produced gas suitable for more application scenarios.

[0025] 2. At the end of the multi-stage mixing process, the mixed gas is returned to the first gas mixing chamber through the return pipe to mix again with the newly introduced raw material gas. This can break the problem of excessively high local concentration of fresh raw material gas and enhance the degree of gas turbulence through circulation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of the gas mixing box in this utility model;

[0028] Figure 3 This is a schematic diagram of the gas mixing box in this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the middle box door of this utility model;

[0030] The meanings of the labels in the diagram are as follows:

[0031] 100. Gas production device body; 200. Gas mixing box; 210. Box body; 220. Gas outlet pipe; 230. First gas inlet pipe; 240. Support plate; 250. Second gas inlet pipe; 300. Return pipe; 400. Sealing mechanism; 410. Box door; 420. Handle; 500. First gas mixing mechanism; 600. Second gas mixing mechanism; 700. Third gas mixing mechanism. Detailed Implementation

[0032] 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.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0035] Please see Figures 1-4 This embodiment provides a technical solution:

[0036] A multi-stage reflux mixing device for gas production includes a gas production device body 100, three gas mixing boxes 200 are equidistantly distributed on the right side of the gas production device body 100, and a sealing mechanism 400 is hinged to the front end of each gas mixing box 200. A reflux pipe 300 is installed at the top of the rightmost gas mixing box 200.

[0037] The gas mixing chamber 200 includes a chamber body 210, an outlet pipe 220 installed at the middle position of the upper outer surface of the chamber body 210, and a support plate 240 welded to the lower inner side of the chamber body 210. A first inlet pipe 230 is installed at the lower end of the left side surface of the chamber body 210, and a second inlet pipe 250 is installed at the lower end of the rear side surface of the chamber body 210. Through the above mechanism, the gas produced by the gas production device body 100 can be mixed with other gases as needed, making it adaptable to more application scenarios.

[0038] It should be added that the gas flow path is as follows: gas production device body → first inlet pipe of the leftmost mixing box → outlet pipe of the leftmost mixing box → first inlet pipe of the middle mixing box → outlet pipe of the middle mixing box → first inlet pipe of the rightmost mixing box → outlet pipe of the rightmost mixing box → part of the gas returns to the leftmost mixing box through the return pipe, and part of the gas is output.

[0039] Furthermore, such as Figure 3 As shown, the first inlet pipe 230 connected to the gas mixing box 200 at the far left is connected to the gas outlet of the gas production device body 100. The second inlet pipe 250 is used to input other mixed gases. The lower ends of the second inlet pipe 250 and the first inlet pipe 230 are both located on the lower side of the lower surface of the support plate 240. The upper surface of the support plate 240 is provided with through holes for the installation of the first inlet pipe 230 and the second inlet pipe 250. The gas entering the gas mixing box 200 will eventually enter the gas mixing mechanism for mixing.

[0040] In this embodiment, as Figure 4 As shown, the sealing mechanism 400 includes a door 410 and a handle 420 installed at the right end of the middle position of the front surface of the door 410. A sealing gasket is affixed to the contact position between the door 410 and the box body 210. The handle 420 is cylindrical in shape. A disc-shaped auxiliary piece is welded to the top of the handle 420. The outer surface of the handle 420 is covered with a sponge sleeve to increase the user's grip comfort and the amount of friction generated by gripping.

[0041] In this embodiment, as Figure 2As shown, the three gas mixing chambers 200 are equipped with a first gas mixing mechanism 500, a second gas mixing mechanism 600, and a third gas mixing mechanism 700, sequentially installed from left to right. The first gas mixing mechanism 500 uses a static gas mixer, the second gas mixing mechanism 600 uses a porous ring-type gas distributor with a mixing pipe fitted at the top, and the third gas mixing mechanism 700 uses a Venturi tube mixer. The three mixing mechanisms work together to achieve efficient mixing from initial mixing to further refine the gas distribution, and finally achieve efficient mixing by utilizing the airflow pressure difference. The synergy of the three mechanisms can significantly improve the uniformity and efficiency of gas mixing, meeting the requirements of high-precision gas mixing.

[0042] In this embodiment, as Figure 2 As shown, one end of the return pipe 300 is connected to the outlet pipe 220 at the top of the rightmost gas mixing box 200, and the other end is connected to the first inlet pipe 230 of the leftmost gas mixing box 200. A control valve is provided at the left end of the return pipe 300. Between the gas mixing boxes 200, the first inlet pipe 230 is connected to the outlet pipe 220 of another gas mixing box 200. It is clear that the gas mixing boxes are connected by "the outlet pipe of the previous mixing box → the first inlet pipe of the next mixing box", which constructs an orderly multi-stage gas path of "the leftmost mixing box → the middle mixing box → the rightmost mixing box". This ensures that the gas can flow through the three mixing boxes in sequence, gradually complete the differentiated mixing, ensure the smoothness of the multi-stage mixing process, and further improve the uniformity and stability of the gas mixing.

[0043] It is worth noting that the structures and working principles of the control valve, static gas mixer, porous ring gas distributor, and venturi tube involved in this embodiment are as known to those skilled in the art and will not be described in detail here. The structure and working principle of the gas production device body 100 involved in this embodiment are all technologies disclosed in the prior art and will not be described in detail here.

[0044] In this embodiment, the multi-stage reflux mixing device for gas production, during actual use, allows the gas produced from the gas production device body 100 to enter the first gas mixing chamber 200 through the first inlet pipe 230. The gas then travels along the following path: gas production device body 100 → leftmost mixing chamber first inlet pipe 230 → leftmost mixing chamber outlet pipe 220 → middle mixing chamber first inlet pipe 230 → middle mixing chamber outlet pipe 220 → rightmost mixing chamber first inlet pipe 230 → rightmost mixing chamber outlet pipe 220 → part of the gas... The gas flows back to the leftmost mixing chamber via the return pipe 300, with some gas output. The static mixer in the first gas mixing mechanism 500 can achieve preliminary uniform mixing of the gas. The porous ring-type gas distributor in the second gas mixing mechanism 600, combined with the mixing pipeline, can further refine the gas distribution. The venturi mixer in the third gas mixing mechanism 700 can achieve efficient mixing by utilizing the airflow pressure difference. The three work together to significantly improve the uniformity and efficiency of gas mixing compared to a single type of mixing mechanism, meeting the requirements for high-precision gas mixing.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-stage reflux mixing device for gas production, comprising a gas production device body (100), characterized in that: Three gas mixing boxes (200) are equidistantly distributed on the right side of the gas production device body (100). Each gas mixing box (200) is hinged to a sealing mechanism (400) at its front end. A return pipe (300) is installed at the top of the rightmost gas mixing box (200). The gas mixing box (200) includes a box body (210), an exhaust pipe (220) installed at the middle position of the upper outer surface of the box body (210), and a support plate (240) welded to the lower inner side of the box body (210). A first intake pipe (230) is installed at the lower end of the left side surface of the box body (210), and a second intake pipe (250) is installed at the lower end of the rear side surface of the box body (210).

2. The multi-stage reflux mixing device for gas production as described in claim 1, characterized in that: The first inlet pipe (230) connected to the gas mixing box (200) at the far left is connected to the outlet of the gas production device body (100), and the second inlet pipe (250) is used to input other mixed gases.

3. The multi-stage reflux mixing device for gas production as described in claim 1, characterized in that: The lowermost ends of the second air intake pipe (250) and the first air intake pipe (230) are both located on the lower side of the lower surface of the support plate (240), and the upper surface of the support plate (240) is provided with through holes for the installation of the first air intake pipe (230) and the second air intake pipe (250).

4. The multi-stage reflux mixing device for gas production as described in claim 1, characterized in that: The sealing mechanism (400) includes a door (410) and a handle (420) installed at the right end of the middle position of the front surface of the door (410). A sealing gasket is affixed to the contact position between the door (410) and the box body (210).

5. The multi-stage reflux mixing device for gas production as described in claim 4, characterized in that: The handle (420) is cylindrical in shape, and a disc-shaped auxiliary piece is welded to the top of the handle (420). The outer surface of the handle (420) is covered with a sponge sleeve.

6. The multi-stage reflux mixing device for gas production as described in claim 1, characterized in that: The three gas mixing chambers (200) are equipped with a first gas mixing mechanism (500), a second gas mixing mechanism (600) and a third gas mixing mechanism (700) from left to right. The first gas mixing mechanism (500) uses a static gas mixer, the second gas mixing mechanism (600) uses a porous ring gas distributor and a mixing pipe is sleeved on the top of the porous ring gas distributor, and the third gas mixing mechanism (700) uses a Venturi tube mixer.

7. The multi-stage reflux mixing device for gas production as described in claim 1, characterized in that: One end of the return pipe (300) is connected to the outlet pipe (220) at the top of the rightmost gas mixing box (200), and the other end is connected to the first inlet pipe (230) of the leftmost gas mixing box (200).

8. The multi-stage reflux mixing device for gas production as described in claim 1, characterized in that: A control valve is provided at the left end of the return pipe (300). Between the gas mixing boxes (200), the first inlet pipe (230) is connected to the outlet pipe (220) of the other gas mixing box (200).

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