High-sound-insulation-index sound insulation coating structure for industrial fan

Abstract

The utility model relates to a high-sound-insulation-index sound insulation coating structure for an industrial fan, and belongs to the technical field of equipment noise control. Firstly, the aluminum plate damping fin, the rubber and plastic plate, the centrifugal glass wool or aluminum silicate needled felt, the sound insulation felt and the metal outer protective plate are combined, the sound insulation performance characteristics of different materials under different frequencies are exerted, and the sound insulation performance of the sound insulation wrapping structure of the industrial fan is improved. And secondly, the first layer of the fan sound insulation coating structure is the aluminum plate damping fin which is fixed outside the machine shell in a pasting mode, so that the sound leakage phenomenon in a traditional industrial fan sound insulation coating structure is avoided. And the aluminum plate damping fin and the rubber and plastic plate structural member are fixed to the outer portion of the machine shell in a pasting mode, site construction is simple, and therefore the overall construction difficulty of the external sound insulation coating of the industrial draught fan is lowered. And finally, compared with repeated coating and difficult construction of a multi-layer sound insulation and absorption component, the structure saves the implementation cost in the aspects of the coating layer number and the construction period.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the equipment noise control technical field relates to a kind of high sound insulation amount sound insulation coating structure for industrial fan. BACKGROUND

[0002] Industrial fan can not only realize the function of delivering oxygen or combustion medium to combustion equipment, but also can realize the function of delivering high-temperature gas after combustion to the equipment inside for treating polluted gas. Therefore, it has a wide application in the field of coal-fired power generation and steelmaking. However, the noise pollution caused by industrial fan has caused certain damage to the personnel working near the fan, especially the high-power industrial fan, whose noise value is between 110dB(A) and 120dB(A), which has exceeded the noise limit value required in the occupational exposure limit value of the working environment.

[0003] For the control of industrial fan noise, the fan is usually coated with sound-absorbing materials such as centrifugal glass wool or aluminum silicate needle felt, and the sound-absorbing materials are further coated with metal outer panels to control the radiation of fan noise to the surrounding area. Or, through the way of coating multiple layers of sound insulation felt, sound-absorbing materials and outer panels, the fan noise is controlled to radiate to the surrounding area. Some engineering projects even build a sound insulation room outside the fan to control the fan noise to radiate to the surrounding area. The above-mentioned industrial fan noise control structure measures have several shortcomings in practical engineering application:

[0004] A. The sound insulation amount of the sound insulation coating structure is insufficient. Since industrial fan is a high-noise pollution equipment, only sound-absorbing materials and metal outer panels are used in fan noise control engineering to reduce the radiation of industrial fan noise to the surrounding area. Usually, the sound insulation amount of the sound insulation coating structure is insufficient.

[0005] B. The sound insulation coating structure has many sound leakage points and is difficult to construct. In order to control the radiation of industrial fan noise to the surrounding area, some fan noise control engineering adopts the way of coating 2 layers or even 3 layers of sound insulation felt, and thicker sound-absorbing materials to control the radiation of industrial fan noise to the outside. Since sound insulation felt is a hard flexible material, the multi-layer coating in the construction process increases the construction difficulty, and the hard flexible material cannot be completely coated at the connection corner of the shell. Therefore, in actual projects, there are many sound leakage points after the fan is sound-insulated, and the construction is difficult.

[0006] C. The sound insulation coating structure is not economical. In existing industrial fan noise control engineering application, some engineering adopts the way of building a sound insulation room outside the fan to control the radiation of fan noise to the surrounding area. Although this noise control method can bring obvious noise reduction effect of fan, the sound insulation room needs to be removed during fan overhaul, which makes the fan maintenance inconvenient. At the same time, this industrial fan noise control measure has high cost and is not economical. SUMMARY

[0007] Therefore, the utility model discloses the purpose at providing a kind of high sound insulation quantity sound insulation covering structure for industrial fan.

[0008] Generally, traditional industrial fan sound insulation technology has the following deficiencies:

[0009] 1) the sound insulation performance of industrial fan sound insulation covering structure is insufficient;

[0010] 2) the sound insulation covering structure of industrial fan sound insulation covering structure is many;

[0011] 3) the sound insulation covering structure of industrial fan sound insulation covering structure is difficult;

[0012] 4) the economic efficiency of industrial fan sound insulation covering structure is insufficient.

[0013] To improve the above deficiencies, improve the sound insulation performance of industrial fan sound insulation covering structure, the utility model provides the following scheme:

[0014] A kind of high sound insulation quantity sound insulation covering structure for industrial fan, it is characterized by: the sound insulation covering structure includes fan casing (①), aluminum plate damping sheet (②), rubber plastic board (③), sound-absorbing material (④), sound insulation felt (⑤), metal outer cover plate (⑥), heat preservation hook nail (⑦), hook nail lock piece (⑧), hot-dip galvanized iron wire (⑨).

[0015] Aluminum plate damping sheet (②) is pasted on the outside of fan casing (①) by self adhesive, forms first layer damping sound insulation layer;Rubber plastic board (③) is pasted on the upper portion of aluminum plate damping sheet (②) by adhesive, forms second layer sound insulation layer;Sound-absorbing material (④) is fixed on the upper portion of rubber plastic board (③) by heat preservation hook nail (⑦) and hot-dip galvanized iron wire (⑨), forms third layer sound absorption layer;Sound insulation felt (⑤) is fixed in the middle portion of sound-absorbing material (④) by hot-dip galvanized iron wire (⑨) and hook nail lock piece (⑧), forms fourth layer sound insulation layer;Metal outer cover plate (⑥) is fixed on the upper portion of sound-absorbing material (④), forms fifth layer sound insulation layer.

[0016] Aluminum plate damping sheet (②) is flexible structure, which is fixed on the outside of fan casing (①) by pasting.

[0017] The thickness of aluminum plate damping sheet (②) is between 2mm and 3mm, and the density thereof is between 1.7kg / m 2 ~2.0kg / m 2 The thickness of aluminum plate in aluminum plate damping sheet (②) is between 0.1mm and 0.2mm.

[0018] The temperature resistance range of aluminum plate damping sheet (②) is-40℃~130℃.

[0019] The sound insulation felt (⑤) can be fixed in the middle of the sound-absorbing material (④), or it can be fixed in the upper part of the sound-absorbing material (④).

[0020] The sound insulation felt (⑤) is 3mm thick and has a density of 3.5kg / m³. 2 ~6.0kg / m 2 between.

[0021] The beneficial effects of this invention are as follows: First, by combining aluminum plate damping sheets, rubber-plastic boards, centrifugal glass wool or aluminum silicate needle-punched felt, sound insulation felt, and metal outer protective plates, the sound insulation performance characteristics of different materials at different frequencies are utilized, thereby improving the overall sound insulation performance of the industrial fan sound insulation enclosure structure. Second, the first layer of the fan sound insulation enclosure structure is an aluminum plate damping sheet. Due to its flexible structure and the fact that it is fixed to the outside of the casing by adhesive, the concave corners of the fan casing sheet metal parts can be completely covered, thus avoiding the sound leakage phenomenon in traditional industrial fan sound insulation enclosure structures. Third, in this invention, the aluminum plate damping sheets and rubber-plastic board structural components are fixed to the outside of the casing by adhesive, simplifying on-site construction and reducing the overall construction difficulty of the industrial fan external sound insulation enclosure. Finally, compared with the repeated wrapping of multiple layers of sound insulation and sound absorption components and the difficulty of construction, this structure saves implementation costs in terms of the number of enclosure layers and construction period, thereby improving the economy of the industrial fan sound insulation enclosure structure.

[0022] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0024] Figure 1 This is a structural diagram of the present utility model;

[0025] Figure 2 This is a schematic diagram of the installation of this utility model.

[0026] Attached reference numerals: ①—fan casing, ②—aluminum plate damping sheet, ③—rubber and plastic board, ④—sound absorbing material, ⑤—sound insulation felt, ⑥—metal outer protective plate, ⑦—insulation hook, ⑧—hook locking plate, ⑨—hot-dip galvanized iron wire. Detailed Implementation

[0027] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0028] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0029] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0030] like Figure 1 and Figure 2 As shown, this utility model includes a fan housing (①), an aluminum plate damping sheet (②), a rubber and plastic board (③), a sound-absorbing material (④), a sound insulation felt (⑤), a metal outer protective plate (⑥), a thermal insulation hook (⑦), a hook locking plate (⑧), and a hot-dip galvanized iron wire (⑨).

[0031] The aluminum plate damping sheet (②) is attached to the outside of the fan casing (①) with self-adhesive backing to form the first damping and sound insulation layer; the rubber and plastic board (③) is attached to the upper part of the aluminum plate damping sheet (②) with self-adhesive backing to form the second sound insulation layer; the sound-absorbing material (④) is fixed to the upper part of the rubber and plastic board (③) with heat-insulating hooks (⑦) and hot-dip galvanized iron wire (⑨) to form the third sound-absorbing layer; the sound insulation felt (⑤) is fixed to the middle of the sound-absorbing material (④) with hot-dip galvanized iron wire (⑨) and hook locking piece (⑧) to form the fourth sound insulation layer; the metal outer protective plate (⑥) is fixed to the upper part of the sound-absorbing material (④) to form the fifth sound insulation layer.

[0032] The aluminum plate damping sheet (②) is a flexible structure, which is fixed to the outside of the fan casing (①) by adhesive bonding.

[0033] The aluminum plate damping sheet (②) has a thickness of 2mm to 3mm and a density of 1.7kg / m³. 2 ~2.0kg / m 2 The thickness of the aluminum plate in the aluminum plate damping sheet (②) is between 0.1mm and 0.2mm.

[0034] The temperature range of the aluminum plate damping sheet (②) is -40℃ to 130℃.

[0035] The sound insulation felt (⑤) can be fixed in the middle of the sound-absorbing material (④), or it can be fixed in the upper part of the sound-absorbing material (④).

[0036] The sound insulation felt (⑤) is 3mm thick and has a density of 3.5kg / m³. 2 ~6.0kg / m 2 between.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high sound insulation and soundproofing enclosure structure for industrial fans, characterized in that: The sound insulation covering structure includes a fan casing (①), an aluminum plate damping sheet with adhesive backing (②), an adhesive rubber and plastic board (③), sound-absorbing material (④), sound insulation felt (⑤), a metal outer protective plate (⑥), insulation hooks (⑦), hook locking plates (⑧), and hot-dip galvanized iron wire (⑨). The aluminum plate damping sheet with adhesive backing (②) is adhered to the outside of the fan casing (①) with its own adhesive backing to form the first layer of damping and sound insulation. The rubber and plastic board with adhesive backing (③) is adhered to the aluminum plate with its own adhesive backing to form the first layer of damping and sound insulation. The upper part of the damping sheet (②) forms the second sound insulation layer; the sound-absorbing material (④) is fixed to the upper part of the adhesive rubber and plastic board (③) by the heat-insulating hooks (⑦) and hot-dip galvanized iron wire (⑨) to form the third sound-absorbing layer; the sound insulation felt (⑤) is fixed to the middle part of the sound-absorbing material (④) by the hot-dip galvanized iron wire (⑨) and hook locking piece (⑧) to form the fourth sound insulation layer; the metal outer protective plate (⑥) is fixed to the upper part of the sound-absorbing material (④) to form the fifth sound insulation layer.

2. The high sound insulation and soundproofing enclosure structure for industrial fans according to claim 1, characterized in that: The aluminum plate damping sheet (②) is a flexible structure and is fixed to the outside of the fan casing (①) by adhesive bonding.

3. The high sound insulation and soundproofing covering structure for industrial fans according to claim 1, characterized in that: The aluminum plate damping sheet (②) has a thickness of 2mm to 3mm and a density of 1.7kg / m³. 2 ~2.0kg / m 2 The thickness of the aluminum plate in the aluminum plate damping sheet (②) is between 0.1mm and 0.2mm.

4. The high sound insulation and soundproofing enclosure structure for industrial fans according to claim 1, characterized in that: The temperature range of the aluminum plate damping sheet (②) is -40℃ to 130℃.

5. The high sound insulation and soundproofing enclosure structure for industrial fans according to claim 1, characterized in that: The sound insulation felt (⑤) can be fixed in the middle of the sound-absorbing material (④), or it can be fixed in the upper part of the sound-absorbing material (④).

6. The high sound insulation and soundproofing covering structure for industrial fans according to claim 1, characterized in that: The sound insulation felt (⑤) is 3mm thick and has a density of 3.5kg / m³. 2 ~6.0kg / m 2 between.

Images