Smoke premixing pipeline

Abstract

The utility model discloses a smoke premixing pipeline which comprises a pipeline used for conveying smoke, a mixed flow fan is arranged at the input end of the pipeline, and a plurality of smoke premixing assemblies are arranged on the side, located on the mixed flow fan, of the pipeline. Wherein the pipeline is used for conveying smoke to the smoke premixing assembly for mixing through turbulent flow of the mixed flow fan. According to the utility model, the mixed flow fan and the smoke premixing assembly are matched for use, so that the mixing efficiency of the smoke in the air duct can be effectively improved, and the uniform distribution of the smoke is ensured. The turbulent flow effect generated by the mixed flow fan is beneficial to scattering the smoke, so that the smoke is fully mixed in the air duct, and the mixing effect is improved.

Description

Technical Field

[0001] The utility model relates to a smoke premixing pipeline. Background Art

[0002] With the development of industrial production, during the quality inspection of the air ducts of refrigerator and freezer equipment, the flow field of the air ducts of refrigerator and freezer equipment can be detected by laser imaging of smoke.

[0003] During the smoke detection process of traditional pipelines, they only provide the function of smoke transportation and cannot achieve the smoke mixing effect. There are often problems of uneven mixing and low efficiency during the smoke transportation process, and they cannot meet the mixing requirements of smoke detection. Therefore, a smoke premixing pipeline is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a smoke premixing pipeline to solve the problems of uneven mixing, low efficiency, and inability to meet the smoke detection requirements in the above-mentioned background art during the smoke detection process of traditional pipelines.

[0005] To solve the above technical problems, the utility model provides the following technical solution: A smoke premixing pipeline includes a pipeline for smoke transportation, a mixed-flow fan is arranged at the input end of the pipeline, and a plurality of smoke premixing components are arranged on the pipeline on the side of the mixed-flow fan;

[0006] Among them, the pipeline turbulently transports the smoke to the smoke premixing components for mixing through the mixed-flow fan.

[0007] Preferably, the smoke premixing component includes a guide vane and a mixed-flow vane arranged in sequence. The output end of the guide vane is connected to the input end of the mixed-flow vane, so that the smoke is introduced through the guide vane and exported through the mixed-flow vane.

[0008] Preferably, the pipeline is arranged in a corrugated shape between the guide vane and the mixed-flow vane.

[0009] Preferably, the guide vane is in a groove arc shape relative to the side of the mixed-flow fan, so that the mixed-flow fan blows the smoke to the guide vane for mixing.

[0010] Preferably, the output end of the guide vane is a channel arranged in the middle of the guide vane, and the channel is arranged in a conical shape.

[0011] Preferably, an arc-shaped groove for smoke reflux is arranged at the mixed-flow vane, and the input end of the mixed-flow vane is a guide cap arranged at the top of the arc-shaped groove.

[0012] Preferably, the guide cap and the mixed-flow vane are connected by a support cylinder, and through holes for smoke export are arranged on the outer periphery of the support cylinder.

[0013] Preferably, the flow guide cap is arranged in an arc-shaped convex manner so that the smoke is discharged through the through hole along the arc-shaped groove.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] By the combined use of the mixed-flow fan and the smoke premixing assembly, the present utility model can effectively improve the mixing efficiency of the smoke in the air duct and ensure the uniform distribution of the smoke.

[0016] The turbulence generated by the mixed-flow fan helps to disperse the smoke, enabling it to be fully mixed in the air duct and improving the mixing effect.

[0017] The sequential arrangement of the guide vanes and the mixed-flow vanes, as well as the corrugated design of the pipeline, increase the disturbance and mixing area of the smoke, further enhancing the mixing effect. The arc-shaped groove and the flow guide cap at the mixed-flow vane enable the smoke to achieve backflow inside the mixed-flow vane, increasing the mixing time and contact area of the smoke. The conical channel at the output end of the guide vane helps to concentrate the smoke flow, accelerate the smoke flow, and improve the mixing speed. The through holes on the support cylinder can precisely control the discharge direction and quantity of the smoke, ensuring that the smoke enters the subsequent detection link in the best state.

[0018] The design of the smoke premixing pipeline can adapt to different industrial environments and detection requirements, and has good versatility and adaptability. The optimized air duct design and mixing assembly reduce energy loss, thereby reducing the overall energy consumption. The structural design is simple and reasonable, facilitating daily maintenance and cleaning, and reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of the embodiment of the present utility model;

[0020] Figure 2 is the cross-sectional structural schematic diagram of the embodiment of the present utility model;

[0021] Figure 3 is the structural schematic diagram of the smoke premixing assembly of the embodiment of the present utility model.

[0022] In the figure: 1, pipeline; 2, mixed-flow fan; 3, smoke premixing assembly; 301, guide vane; 3011, channel; 302, mixed-flow vane; 3021, arc-shaped groove; 3022, flow guide cap; 3023, support cylinder; 3024, through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to facilitate the solution of the problems that in the process of smoke detection by traditional pipelines, the mixing is uneven, the efficiency is low, and the smoke detection requirements cannot be met, the embodiment of the present utility model provides a smoke premixing pipeline. The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-3 , the present utility model provides a smoke premixing pipeline, including a pipeline 1 for smoke transportation, a mixing flow fan 2 is arranged at the input end of the pipeline 1, and a plurality of groups of smoke premixing components 3 are arranged on the side of the pipeline 1 where the mixing flow fan 2 is located;

[0025] The smoke premixing component 3 includes a guiding vane 301 and a mixing vane 302 arranged in sequence. The output end of the guiding vane 301 is connected to the input end of the mixing vane 302, so that smoke is introduced through the guiding vane 301 and exported through the mixing vane 302.

[0026] The pipeline 1 is arranged in a corrugated shape between the guiding vane 301 and the mixing vane 302.

[0027] The guiding vane 301 is in a groove arc shape relative to the side of the mixing flow fan 2, so that the mixing flow fan 2 blows the smoke to the guiding vane 301 for mixing. The output end of the guiding vane 301 is a channel 3011 arranged in the middle of the guiding vane 301, and the channel 3011 is arranged in a conical shape.

[0028] An arc-shaped groove 3021 for smoke reflux is arranged at the mixing vane 302. The input end of the mixing vane 302 is a guiding cap 3022 arranged at the top of the arc-shaped groove 3021. The guiding cap 3022 is connected to the mixing vane 302 through a support cylinder 3023. Through holes 3024 for smoke export are arranged on the outer periphery of the support cylinder 3023. The guiding cap 3022 is arranged in an arc-shaped convex manner, so that smoke is exported along the arc-shaped groove 3021 through the through holes 3024.

[0029] Among them, the pipeline 1 turbulently transports the smoke to the smoke premixing component 3 for mixing through the mixing flow fan 2.

[0030] The working principle of a smoke premixing pipeline provided by the present utility model is as follows:

[0031] Smoke input and turbulence: The smoke first enters the pipeline, and the mixing flow fan 2 performs preliminary turbulence at the input end.

[0032] The function of the mixed-flow fan 2 is to generate a high-speed air flow, disperse the smoke, make it preliminarily mixed, and provide power for the subsequent mixing process.

[0033] Preliminary mixing: The smoke flowing through the mixed-flow fan 2 passes through the guide vane 301. The groove arc design of the guide vane 301 helps to capture and guide the smoke. The output end of the guide vane 301 is a conical channel 3011, and the conical design helps to concentrate the smoke flow, increase the flow rate, and promote the further mixing of the smoke.

[0034] Enhanced mixing: The smoke discharged from the conical channel 3011 enters the mixed-flow vane 302. The arc-shaped groove 3021 inside the mixed-flow vane 302 is designed to cause the smoke to generate a backflow when flowing through. This backflow effect increases the residence time of the smoke inside the mixed-flow vane 302, enabling the smoke to be more fully mixed.

[0035] Backflow and discharge: Through holes 3024 are provided on the outer periphery of the support cylinder 3023 for discharging the smoke. The arc-shaped convex setting of the guide cap 3022 further guides the smoke to flow along the arc-shaped groove 3021 and discharges it through the through holes 3024.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smoke premixing pipeline (1), characterized in that: It includes a duct (1) for smoke delivery. A mixed-flow fan (2) is provided at the input end of the duct (1), and multiple groups of smoke premixing components (3) are arranged on the side of the duct (1) where the mixed-flow fan (2) is located. Among them, the duct (1) turbulently conveys the smoke to the smoke premixing components (3) through the mixed-flow fan (2) for mixing.

2. The smoke premixing pipe (1) according to claim 1, characterized in that: The smoke premixing component (3) includes a guide vane (301) and a mixed-flow vane (302) arranged in sequence. The output end of the guide vane (301) is connected to the input end of the mixed-flow vane (302) so that the smoke is introduced through the guide vane (301) and led out through the mixed-flow vane (302).

3. A smoke premixing pipe (1) according to claim 2, characterized in that: The duct (1) is arranged in a corrugated shape between the guide vane (301) and the mixed-flow vane (302).

4. A smoke premixing pipe (1) according to claim 2, characterized in that: The guide vane (301) is in a groove arc shape relative to the side of the mixed-flow fan (2) so that the mixed-flow fan (2) blows the smoke to the guide vane (301) for mixing.

5. A smoke premixing pipe (1) according to claim 2, characterized in that: The output end of the guide vane (301) is a channel (3011) provided in the middle of the guide vane (301), and the channel (3011) is arranged in a conical shape.

6. The smoke premixing pipe (1) according to claim 2, characterized in that: An arc-shaped groove (3021) for smoke backflow is provided at the mixed-flow vane (302). The input end of the mixed-flow vane (302) is a guide cap (3022) provided at the top of the arc-shaped groove (3021).

7. A smoke premixing pipe (1) according to claim 6, characterized in that: The guide cap (3022) is connected to the mixed-flow vane (302) through a support cylinder (3023), and through holes (3024) for smoke export are formed on the outer periphery of the support cylinder (3023).

8. A smoke premixing pipe (1) according to claim 7, characterized in that: The guide cap (3022) is arranged in an arc-shaped convex manner so that the smoke is led out along the arc-shaped groove (3021) through the through holes (3024).

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