Resonant cavity sound wave soot blower

Abstract

The utility model discloses a resonant cavity sound wave soot blower which comprises an air inlet pipe, a flow stabilizing pipe, a pressurizing flow guide cone, a resonant cylinder, a reflection cavity, a shell and a silencing cover, the air inlet pipe penetrates through the bottom of the shell and extends into the reflection cavity, one end of the air inlet pipe is fixedly connected with the flow stabilizing pipe, and the other end of the air inlet pipe is fixedly connected with the silencing cover. The pressurizing flow guide cone comprises a cone head and a supporting concentric rod; the noise reduction soot blower has the advantages that the noise generated by the soot blower is absorbed by the external noise reduction cover while the resonance intensity is improved after air flow stabilization, sound wave energy generated by sound wave reflection and resonance is absorbed on the surface of the shell through the noise reduction cover except the sound emission end of the soot blower, noise emitted to the surrounding environment by the soot blower body is reduced, and the noise reduction effect is achieved. And the comfort level of a working place is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of soot blower, concretely is a resonance cavity sound wave soot blower. BACKGROUND

[0002] The soot blower is a tool or equipment for removing the accumulated ash inside the boiler, industrial furnace or other high-temperature equipment. It is mainly used to prevent the accumulated ash in the equipment from affecting the thermal efficiency and normal operation of the equipment. The soot blower blows away the dust and soot on the boiler tube wall and heating surface through high-pressure gas flow or steam to ensure that the equipment can effectively transfer heat.

[0003] The traditional soot blower is a steam soot blower, and the ash removal effect of the steam soot blower mainly depends on the arrangement and pressure of the steam nozzle. However, due to the nozzle structure, some areas may not be effectively cleaned, resulting in local ash accumulation. The sound wave soot blower generates high-energy sound wave vibration, which is transmitted to the surface of the equipment to make the accumulated ash fall off. The sound wave can cover a larger area inside the equipment and penetrate complex structures, effectively removing hard-to-reach parts. However, the resonance cavity type sound wave soot blower produces a lot of noise during operation, especially low-frequency sound waves, which may cause noise pollution to the operator and the surrounding environment, affecting the comfort of the workplace. SUMMARY

[0004] (I) Technical problem solved

[0005] The technical problem to be solved by the utility model is that the resonance cavity type sound wave soot blower produces a lot of noise during operation, especially low-frequency sound waves, which may cause noise pollution to the operator and the surrounding environment, affecting the comfort of the workplace.

[0006] (II) Technical solution

[0007] To solve the above problems, the utility model provides the following technical scheme:

[0008] A resonance cavity sound wave soot blower, comprising an air inlet pipe, a flow stabilizing pipe, a pressure boosting flow guide cone, a resonance cylinder, a reflection cavity, an outer shell and a soundproof cover, the air inlet pipe penetrates through the bottom of the outer shell and extends into the reflection cavity, one end of the air inlet pipe is fixedly connected with the flow stabilizing pipe, the pressure boosting flow guide cone comprises a cone head and a supporting concentric rod, the supporting concentric rod is fixedly connected with one end of the flow stabilizing pipe, one end of the flow stabilizing pipe is provided with a through hole gap, the resonance cylinder is arranged at one end of the supporting concentric rod, one end of the outer shell is provided with external threads, and the outer shell is threadedly connected with the soundproof cover.

[0009] Further, the outer shell and the soundproof cover are trumpet-shaped, and the reflection cavity is arranged between the resonance cylinder and the outer shell.

[0010] Further, the soundproof cover comprises a connecting part and a cover body, the connecting part is made of stainless steel, and an inner wall is provided with an internal thread; the cover body is made of foam material.

[0011] Further, the taper head is arranged in the flow stabilizing pipe, and a flow stabilizing hole is arranged between the taper head and the flow stabilizing pipe.

[0012] Further, a plurality of through hole gaps are uniformly arranged along the bottom of the flow stabilizing pipe.

[0013] (Three) beneficial effects

[0014] The beneficial effects of the utility model are:

[0015] After the air is stabilized, the resonance intensity is improved, the external soundproof cover is used to absorb the noise generated by the soot blower, the sound wave energy generated by sound wave reflection and resonance is absorbed through the soundproof cover on the surface of the shell except the sound emission end of the soot blower, the noise emitted by the soot blower main body to the surrounding environment is reduced, and the comfort of the working place is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is the perspective view of the utility model;

[0017] Fig. 2 is the side view of the utility model;

[0018] Fig. 3 is the A-A cross section view of the utility model;

[0019] Marked in the figure: 1-air inlet pipe, 2-flow stabilizing pipe, 3-boosting flow guide cone, 4-resonance cylinder, 5-reflection cavity, 6-outer shell, 7-soundproof cover, 2a-through hole gap, 2b-flow stabilizing hole, 3a-taper head, 3b-supporting concentric rod, 6a-external thread, 7a-connecting part, 7b-cover body. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown based on the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0022] Please refer to Figs. 1-3 The utility model provides a kind of resonant cavity acoustic wave soot blower as shown in the drawing, including air inlet pipe 1, steady flow pipe 2, booster flow cone 3, resonant cylinder 4, reflection cavity 5, shell 6 and muffler 7, air inlet pipe 1 is through shell 6 bottom and extends to reflection cavity 5, air inlet pipe 1 one end is fixedly connected with steady flow pipe 2, booster flow cone 3 includes cone head 3a and support concentric rod 3b, support concentric rod 3b is fixedly connected with steady flow pipe 2 one end, steady flow pipe 2 one end is equipped with through-hole gap 2a, resonant cylinder 4 is equipped in support concentric rod 3b one end, shell 6 one end is equipped with external thread 6a, shell 6 is threadedly connected with muffler 7.

[0023] Shell 6 and muffler 7 are horn-shaped, reflection cavity 5 is arranged between resonant cylinder 4 and shell 6, and shell 6 is used as horn-shaped to reflect and strengthen sound waves and to protect, so that the sound waves generated by the resonant soot blower are reflected after being emitted and finally transmitted outward.

[0024] Muffler 7 includes connecting part 7a and cover body 7b, connecting part 7a is made of stainless steel, and the inner wall is provided with internal threads, cover body 7b is made of foam material, and the muffler is used to absorb sound wave noise outside the shell 6, except that the sound is discharged, that is, the horn mouth of the shell 6 is the sound wave propagation port and does not need to be shielded or silenced, the noise emitted in the shell during the reflection process is absorbed through the cover body 7b, and is threadedly connected through the connecting part 7a.

[0025] The cone head 3a is arranged in the steady flow pipe 2, and the steady flow hole 2b is arranged between the cone head 3a and the steady flow pipe 2, the booster flow cone 3 is a traditional component, the airflow entering through the air inlet pipe 1 is pressurized through the cone structure of the cone head 3a, then enters the front end of the steady flow pipe 2 through the steady flow hole 2b, and finally is sprayed out through the gap 2a, the sprayed airflow enters the resonant cylinder 4, the resonant cylinder 4 is a resonant cavity, and then the airflow and the airflow column in the resonant cavity resonate to generate sound waves.

[0026] The through-hole gap 2a is evenly arranged along the bottom of the steady flow pipe 2.

[0027] Specific working principle is: air from the inlet pipe 1 into the steady flow pipe 2 after the steady flow hole 2b for flow compression into the front end of the steady flow pipe 2, then from the through hole gap 2a discharge, and the jet flow into the resonance cylinder 4 and with the air column in the resonance cylinder 4 resonance, sound wave and from the top of the resonance cylinder 4 to the space diffusion, and after reflection cavity reflection strengthening from the outlet of the shell 6 discharge, form the sound wave blowing, and the process with the shell 6 inner wall contact produced noise is eliminated through the external muffler 7, and the main sound wave energy from the shell horn port outward propagation.

[0028] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments but can be implemented in other embodiments without departing from the spirit or essential characteristics of the application. Consequently, the embodiments should be considered in a descriptive sense only and not limiting. Therefore, the present application should be defined in accordance with the following claims and their equivalents, not with the above description reading alone. Any reference signs in the claims should not be construed as limiting the scope of the claims.

[0029] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, the specification of this way of narration is only for the sake of clarity, the person skilled in the art should be regarded as a whole, the technical solutions in each embodiment can be combined appropriately, form other embodiments that the person skilled in the art can understand.

Claims

1. A resonant acoustic sootblower characterized by: It includes air inlet pipe (1), steady flow pipe (2), booster guide cone (3), resonance cylinder (4), reflection cavity (5), shell (6) and muffler (7), the air inlet pipe (1) extends to the reflection cavity (5) through the bottom of the shell (6), one end of the air inlet pipe (1) is fixedly connected with the steady flow pipe (2), the booster guide cone (3) includes cone head (3a) and support concentric rod (3b), one end of the support concentric rod (3b) is fixedly connected with the steady flow pipe (2), one end of the steady flow pipe (2) is provided with through hole gap (2a), the resonance cylinder (4) is arranged at one end of the support concentric rod (3b), one end of the shell (6) is provided with external thread (6a), the shell (6) is threadedly connected with the muffler (7).

2. A resonant acoustic sootblower according to claim 1, wherein: The shell (6) and the muffler (7) are trumpet-shaped, and the reflection cavity (5) is arranged between the resonance cylinder (4) and the shell (6).

3. A resonant acoustic sootblower according to claim 1, wherein: The muffler (7) includes connecting part (7a) and cover body (7b), the connecting part (7a) is made of stainless steel material, and the inner wall is provided with internal thread, the cover body (7b) is made of foam material.

4. A resonant acoustic sootblower according to claim 1, wherein: The cone head (3a) is arranged in the steady flow pipe (2), and the steady flow hole (2b) is arranged between the cone head (3a) and the steady flow pipe (2).

5. A resonant acoustic sootblower according to claim 1, wherein: The through hole gap (2a) is uniformly arranged along the bottom of the steady flow pipe (2).

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