Pre-mixer
By introducing a main and secondary pipeline structure into the gas mixer, combined with the cross and grid-like diversion design, the problem of uneven mixing of high-pressure gas was solved, achieving thorough mixing within the gas and improving mixing efficiency.
Patent Information
- Application Number
- CN202520023055.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-01-06
AI Technical Summary
Existing gas mixers have low mixing efficiency under high-pressure gas conditions, especially in terms of the difficulty in fully mixing the gases within themselves.
The system employs a main and secondary pipeline structure, combined with a cross and grid frame. Through the diversion effect of the cross and grid frame, the gas is multi-stage diversion and mixing is achieved. The gas contact area is increased by combining diffuser plates and expansion plates, and the stable rotation of the diffuser plates is maintained by torsion springs and limiting structures, further improving the mixing effect.
By employing multiple flow splits and a diffuser design, the gas mixing effect is significantly improved, enhancing the uniformity and efficiency of internal gas mixing.
Smart Images
Figure CN223901598U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to gas material mixing equipment technical field especially relates to a premixing device. BACKGROUND
[0002] In industrial production, a plurality of gases often participate in production process, when the gas is more, the plurality of gases need to be mixed first, and then put into further production, when the gas is mixed, the gas mixer is used.
[0003] The gas mixer is a kind of static mixer, several kinds of gases are discharged into the same pipeline through different inlets, and the gases are mixed by mutual penetration when flowing in the pipeline, in order to improve the gas mixing effect, helical blades are added to the side wall of the pipeline, and the several kinds of gases are turned in the pipeline under the flow guiding effect of the helical blades, thereby improving the mixing effect.
[0004] Although the helical blade can make the gas flow turn over, the gas entering the mixer pipeline is mostly high-pressure gas, and the gas flows like a column in the pipeline, and the mixing between multiple gases only occurs on the surface layer of the gas column, so the internal gas is difficult to mix, thereby leading to low gas mixing effect. SUMMARY
[0005] The utility model discloses a kind of premixers that can improve gas mixing effect.
[0006] To achieve the above purpose, the technical scheme of the utility model is specifically as follows:
[0007] A premixer, comprising a main pipeline and a secondary pipeline, the gas outlet one end of the secondary pipeline is inserted into the main pipeline from one side of the main pipeline, a cross and a Chinese character are connected in the main pipeline, the cross and the Chinese character are connected in the main pipeline along the radial direction of the main pipeline, the cross is located between the Chinese character and the gas outlet of the secondary pipeline, and the connection mode of the cross and the Chinese character can be welding connection or screw connection.
[0008] Further, a plurality of gas dispersion openings are formed on the side wall of the one end of the secondary pipeline inserted into the main pipeline, the plurality of gas dispersion openings are evenly arranged along the circumferential direction of the side wall of the secondary pipeline, and the gas dispersion openings penetrate the end wall of the gas outlet of the secondary pipeline.
[0009] Further, the one end of the secondary pipeline inserted into the main pipeline is provided as an arc-shaped pipe, and the one end of the gas outlet of the secondary pipeline is arranged at the end portion of the arc-shaped pipe, so that the gas outlet of the secondary pipeline is parallel to the main pipeline.
[0010] Further, the diffusion plate is arranged in the gas diffuser, the length of the diffusion plate is less than the length of the gas diffuser, the diffusion plate is rotatably connected to the outer wall of the gas outlet of the secondary pipeline, the diffusion plate is rotatably connected to the torsional spring, the torsional spring is used for rotating the diffusion plate in the direction of the secondary pipeline, the gas diffuser is provided with a limiting plate for limiting the diffusion plate, the outer wall of the gas outlet of the secondary pipeline is provided with a mounting seat, the diffusion plate is connected to the mounting seat through a pin shaft, the torsional spring is sleeved on the pin shaft, one end of the torsional spring is connected to the side wall of the pin shaft, and the other end of the torsional spring is connected to the mounting seat.
[0011] Further, the diffusion plate is arranged in the gas diffuser, the length of the diffusion plate is less than the length of the gas diffuser, the diffusion plate is rotatably connected to the outer wall of the gas outlet of the secondary pipeline, the diffusion plate is rotatably connected to the torsional spring, the torsional spring is used for rotating the diffusion plate in the direction of the secondary pipeline, the gas diffuser is provided with a limiting plate for limiting the diffusion plate, the outer wall of the gas outlet of the secondary pipeline is provided with a mounting seat, the diffusion plate is connected to the mounting seat through a pin shaft, the torsional spring is sleeved on the pin shaft, one end of the torsional spring is connected to the side wall of the pin shaft, and the other end of the torsional spring is connected to the mounting seat.
[0012] Further, the diffusion plate is arranged in the gas diffuser, the length of the diffusion plate is less than the length of the gas diffuser, the diffusion plate is rotatably connected to the outer wall of the gas outlet of the secondary pipeline, the diffusion plate is rotatably connected to the torsional spring, the torsional spring is used for rotating the diffusion plate in the direction of the secondary pipeline, the gas diffuser is provided with a limiting plate for limiting the diffusion plate, the outer wall of the gas outlet of the secondary pipeline is provided with a mounting seat, the diffusion plate is connected to the mounting seat through a pin shaft, the torsional spring is sleeved on the pin shaft, one end of the torsional spring is connected to the side wall of the pin shaft, and the other end of the torsional spring is connected to the mounting seat.
[0013] Compared with the prior art, the utility model has the advantages that:
[0014] 1. After multiple gas enters the pipeline, each gas realizes first shunting at the cross frame, carries out a mixing after passing through the cross frame, the mixed gas realizes second shunting through the cross frame, and the mixed gas realizes second shunting again, thereby improving the mixing effect.
[0015] 2. The expansion plate can increase the contact area with the gas, increase the stress, and keep the diffusion plate in a stable rotating open state. BRIEF DESCRIPTION OF DRAWINGS
[0016] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, are used to explain the utility model together with the embodiments of the utility model, and do not constitute the limitation to the utility model.
[0017] Figure 1 It is a partial sectional view of the embodiment of the utility model.
[0018] Figure 2 It is a schematic view for reflecting the position relationship between the cross frame and the connecting rod of the embodiment of the utility model.
[0019] Figure 3 It is Figure 1 The enlarged schematic view of the part A.
[0020] Wherein, the reference signs are: 1, main pipe; 2, sub-pipe; 21, cross; 22, well frame; 221, connecting rod; 23, air diffuser; 24, diffusion plate; 241, expansion plate; 25, arc pipe; 3, external pipe. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail with the drawings and examples. Of course, the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.
[0022] Referring to Figures 1-3 The utility model provides technical scheme is a kind of premixer, including main pipe 1 and sub-pipe 2, main pipe 1 one end is air inlet, the other end is air outlet;Sub-pipe 2 one end is air inlet, the other end of sub-pipe 2 is air outlet, the one end of air outlet of sub-pipe 2 passes through the side wall of main pipe 1 and inserts into main pipe 1, the one end of sub-pipe 2 inserted into main pipe 1 is set as arc pipe 25, the air outlet of sub-pipe 2 is located at the end of arc pipe 25, so that the air outlet of sub-pipe 2 is parallel with main pipe 1.
[0023] Preferably, cross 21 and well frame 22 are connected in main pipe 1, cross 21 and well frame 22 are connected in main pipe 1 along the radial direction of main pipe 1, cross 21 is located between well frame 22 and air outlet of sub-pipe 2, the connecting mode of cross 21 and well frame 22 can be welding connection or screw connection, in the embodiment, it is screw connection, screw passes through pipe wall and is connected with cross 21 and well frame 22 by screwing, and gasket sealing is arranged at the position of screw passing through main pipe 1.
[0024] After multiple gas enters pipe, each gas can realize first shunt at cross 21, carries out mixing after passing through cross 21, and the mixed gas realizes second shunt by well frame 22, mixes again, so that multiple gas is shunted and mixed again, and the mixing effect is improved.
[0025] Preferably, detachably connected with connecting rod 221 on well frame 22, the connecting mode of connecting rod 221 can be screw connection or connecting rod 221 directly passes through the frame body of well frame 22 and is connected with well frame 22 by screwing, in the embodiment, connecting rod 221 directly passes through the frame body of well frame 22 and is connected with well frame 22 by screwing, whether connecting rod 221 needs to be installed can be selected according to the pressure and density of gas, if the gas pressure is large and difficult to mix, connecting rod 221 can be installed, connecting rod 221 makes well frame 22 increase shunt, and more channels are shunted to gas, to further improve the degree of gas mixing.
[0026] Preferably, the side wall of one end of the secondary pipeline 2 is provided with a plurality of air diffusers 23, and the air diffusers 23 are evenly arranged along the circumferential direction of the side wall of the secondary pipeline 2. The gas discharged from the secondary pipeline 2 is diffused through the air diffusers 23, so as to realize pressure reduction and diffusion of the gas, and facilitate gas mixing.
[0027] Preferably, the air diffuser 23 is provided with a diffusion plate 24, the length of the diffusion plate 24 is less than the length of the air diffuser 23, the diffusion plate 24 is rotationally connected to the outer wall of the gas outlet of the secondary pipeline 2, the rotationally connected part of the diffusion plate 24 is connected to a torsional spring, the torsional spring is used to rotate the diffusion plate 24 in the direction of the secondary pipeline 2, the air diffuser 23 is provided with a limiting plate for limiting the diffusion plate 24, the outer wall of the gas outlet of the secondary pipeline 2 is provided with a pre-installed seat, the diffusion plate 24 is connected to the seat through a pin shaft, the torsional spring is sleeved on the pin shaft, one end of the torsional spring is connected to the side wall of the pin shaft, and the other end is connected to the seat.
[0028] Preferably, the side wall of the diffusion plate 24 is provided with an extension plate 241, the extension plate 241 is located outside the secondary pipeline 2, and the width of the extension plate 241 is greater than the width of the diffusion plate 24.
[0029] When the gas pressure of the gas outlet of the secondary pipeline 2 is relatively large, the gas passing through the air diffuser 23 will further impact the diffusion plate 24, so as to rotate the diffusion plate 24 away from the air diffuser 23, and at the same time, the torsional spring is twisted. The air diffuser 23 is further opened, and the pressure reduction and diffusion effect of the air diffuser 23 on the gas is increased. After the diffusion plate 24 is rotated and opened, the gas discharged from the air diffuser 23 will be reduced in pressure. At this time, the gas impacts the extension plate 241, the extension plate 241 can increase the contact area with the gas, so as to increase the stress, and keep the diffusion plate 24 in a stable state of rotation and opening. When the gas of the air diffuser 23 gradually decreases, the pushing force on the extension plate 241 and the diffusion plate 24 is insufficient, and the torsional spring is twisted and reset, thereby driving the diffusion plate 24 to rotate into the air diffuser 23 again.
[0030] Preferably, the side wall of the secondary pipeline 2 is connected to an external pipe 3, one end of the external pipe 3 is an air inlet, the other end of the external pipe 3 is an air outlet, and one end of the air outlet of the external pipe 3 penetrates through the pipe wall of the secondary pipeline 2 and is inserted into the secondary pipeline 2. The structure of the end of the external pipe 3 inserted into the secondary pipeline 2 is the same as that of the end of the secondary pipeline 2 inserted into the main pipeline 1.
[0031] Therefore, in the embodiment, there are three air inlets, i.e., the air inlets of the external pipe 3, the secondary pipeline 2 and the main pipeline 1, and the mixing of three kinds of gases can be realized. Two kinds of gases enter the secondary pipeline 2 through the air inlets of the secondary pipeline 2 and the external pipe 3 to realize primary mixing, the gas after primary mixing enters the main pipeline 1 through the gas outlet of the secondary pipeline 2, and the gas is mixed with the gas discharged from the air inlet of the main pipeline 1 to realize secondary mixing, and finally the gas is discharged through the gas outlet of the main pipeline 1 to complete the mixing.
[0032] In the production use, according to the number of mixed gas types, the external connection pipe 3 can be added or reduced on the main pipeline 1 or the auxiliary pipeline 2 based on the embodiment.
[0033] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A pre-mixer comprising a main duct (1) and a sub-duct (2), the gas outlet end of the sub-duct (2) being inserted into the main duct (1) from one side of the main duct (1), characterized in that, The cross-shaped frame (21) and the well-shaped frame (22) are connected in the main pipeline (1) along the radial direction of the main pipeline (1), and the cross-shaped frame (21) is located between the well-shaped frame (22) and the gas outlet of the auxiliary pipeline (2).
2. The premixer of claim 1, wherein The side wall of the end of the auxiliary pipeline (2) inserted into the main pipeline (1) is provided with a plurality of gas diffusing outlets (23), and the plurality of gas diffusing outlets (23) are uniformly arranged along the circumferential direction of the side wall of the auxiliary pipeline (2).
3. The premixer of claim 2, wherein, The end of the auxiliary pipeline (2) inserted into the main pipeline (1) is provided with an arc-shaped pipe (25), and the end of the gas outlet of the auxiliary pipeline (2) is arranged at the end of the arc-shaped pipe (25), so that the gas outlet of the auxiliary pipeline (2) is parallel to the main pipeline (1).
4. The premixer of claim 3, wherein, The gas diffusing outlet (23) is provided with a diffusion plate (24), the length of the diffusion plate (24) is less than the length of the gas diffusing outlet (23), the diffusion plate (24) is rotationally connected to the outer wall of the gas outlet of the auxiliary pipeline (2), and the rotational connection of the diffusion plate (24) is connected to a torsional spring, which is used to rotate the diffusion plate (24) in the direction of the auxiliary pipeline (2).
5. The premixer of claim 4, wherein, The side wall of the diffusion plate (24) is provided with an expansion plate (241), the expansion plate (241) is located outside the auxiliary pipeline (2), and the width of the expansion plate (241) is greater than the width of the diffusion plate (24).
6. The premixer of claim 5, wherein, The well-shaped frame (22) is detachably connected with a connecting rod (221).