Special silencer for fan outlet

Abstract

The utility model discloses a special silencer for a fan outlet, which comprises a body, a flow guide plate is arranged at the bottom of the body, a rainproof cap is arranged at the top of the body, and a flange component is arranged at the bottom of the flow guide plate. A perforated plate and auxiliary silencing cotton are arranged on the inner side wall of the body. The utility model has the advantages of excellent performance, wide application range, small pressure loss and easiness in maintenance and replacement.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan accessory technology field, concretely relates to a special silencer of fan outlet. BACKGROUND

[0002] Fans are widely used in various industrial production and daily life, such as electric power, mining, machinery, metallurgy, chemical industry and other fields. However, the fan will produce a large noise in the running process, which not only causes pollution to the surrounding environment, but also may affect people's health. Therefore, it is particularly important to effectively control the fan noise. The special silencer of fan outlet is a device designed to solve this problem, which is mainly used to reduce the aerodynamic noise at the fan outlet.

[0003] Although there are some fan silencer products on the market at present, they still have some deficiencies in performance and use effect. Due to unreasonable design or improper material selection, part of the silencers have poor silencing effect and cannot meet the demand of practical application; the structure of some silencers is complex, which makes it difficult to maintain and replace, increases the use cost and time cost. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is to provide a special silencer of fan outlet, which has superior performance, wide application range, small pressure loss and is easy to maintain and replace.

[0005] In order to solve the above technical problem, the utility model provides a special silencer of fan outlet, which comprises a body, the bottom of the body is provided with a flow guide plate, the top of the body is provided with a rainproof cap, and the bottom of the flow guide plate is provided with a flange assembly; a porous plate and auxiliary silencing cotton are arranged on the inner side wall of the body.

[0006] Further, a diagonal support plate is arranged between the flow guide plate and the body.

[0007] Further, an auxiliary support plate is arranged between the top of the body and the rainproof cap.

[0008] Further, the inner side top surface of the rainproof cap is provided with rubber plastic silencing cotton.

[0009] Further, the angle of the flow guide plate itself is 60 degrees.

[0010] Further, the porous plate is fixed on the body by rivets.

[0011] Further, the shape of the flow guide plate is conical bucket.

[0012] The utility model discloses a beneficial effect: the silencer's body of the device is installed at the fan export, and the inside of the body is provided with a deflector, and the angle is 60 DEG, mainly is the guidance airflow, optimization its flow path, to reach better silencing effect. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is the whole structure schematic diagram of the utility model.

[0014] Fig. 2 It is the section view of the utility model's porous plate and body connecting structure.

[0015] Mark number explanation: 1, the body;3, rainproof cap;4, deflector;5, flange assembly;6, porous plate;7, auxiliary sound-absorbing cotton;8, oblique support plate;9, auxiliary support plate;10, rubber sound-absorbing cotton;11, rivet. DETAILED DESCRIPTION

[0016] The utility model will be further described below in conjunction with the drawings and specific embodiment, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0017] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore can not be understood as limiting the utility model.

[0018] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an ordered ranking of the indicated technical features. Thus, features defined with "first", "second" or "third" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0019] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0020] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0021] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and are not the only embodiment.

[0022] Referring to Figs. 1-2 As shown in the figure, an embodiment of the sound absorber for fan outlet of the present application, including the body 1, the bottom of the body 1 is provided with the flow guide plate 4, the top of the body 1 is provided with the rainproof cap 3, the bottom of the flow guide plate 4 is provided with the flange assembly 5;The inner side wall of the body 1 is provided with a plurality of perforated plates 6 and auxiliary sound absorbing cotton 7, the shape of the flow guide plate 4 is a conical bucket, which can better guide the gas.

[0023] In use, the body 1 of the silencer is installed at the outlet of the fan, and a guide plate 4 is arranged at the bottom of the body 1 and has an angle of 60°, which is mainly used for guiding the airflow and optimizing the flow path to achieve better silencing effect. Specifically, the guide plate 4 can guide the airflow smoothly to the sound-absorbing material, reduce the turbulence and impact of the airflow, and thus reduce the generation and propagation of noise. At the same time, the guide plate 4 can also reduce the speed and kinetic energy of the gas to a certain extent, which helps to convert the kinetic energy of the gas flow into heat energy and sound energy, which is then absorbed and reflected by the sound-absorbing material. The inside of the silencer body 1 is provided with a porous plate 6 and auxiliary sound-absorbing cotton 7, which has good sound-absorbing effect; a rainproof cap 3 is arranged at the top of the silencer to prevent rainwater from flowing in, and the rainproof cap 3 and the silencer body 1 are fixed by an auxiliary support plate 9, which is more firm, and the inside top surface of the rainproof cap 3 is provided with rubber sound-absorbing cotton 10, which makes the silencing effect better; the porous plate 6 is fixed on the body 1 by rivets 11, which makes the sound-absorbing material more firmly fixed.

[0024] The silencer is matched with a flange assembly 5 at the interface of the fan, which can adapt to different sizes of outlets and has wider application range.

[0025] The above-described embodiments are only preferred embodiments for fully illustrating the present application, and the protection scope of the present application is not limited thereto. Any equivalent replacement or transformation of the present application based on the present application is within the protection scope of the present application. The protection scope of the present application is subject to the claims.

Claims

1. A fan outlet specific silencer, characterized in that The utility model relates to a rainproof device for the exhaust pipe of the vehicle, including the body (1), the bottom of body (1) is provided with the fairlead (4), the top of body (1) is provided with rainproof cap (3), the bottom of fairlead (4) is provided with flange assembly (5); The inner side wall of the body (1) is provided with a perforated plate (6) and auxiliary sound-absorbing cotton (7).

2. The fan outlet specific silencer according to claim 1, characterized in that The fairlead (4) and the body (1) are provided with an inclined support plate (8).

3. The fan outlet specific silencer of claim 1, wherein, The top of the body (1) and the rainproof cap (3) are provided with an auxiliary support plate (9).

4. The fan outlet specific silencer of claim 1, wherein, The inner side top surface of the rainproof cap (3) is provided with rubber plastic sound-absorbing cotton (10).

5. The fan outlet specific silencer of claim 1, wherein, The angle of the fairlead (4) is 60°.

6. The fan outlet specific silencer of claim 1, wherein, The perforated plate (6) is fixed on the body (1) by rivets (11).

7. The fan outlet specific silencer of claim 1, wherein The shape of the fairlead (4) is a conical bucket.

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