Centrifugal fan coating structure convenient to install

Abstract

The utility model provides a centrifugal fan coating structure convenient to install. The problems that when a lead screw is adopted for fixing, a coating layer forms a large crevasse, fixing is difficult, time and labor are wasted, and a fan is inconvenient to overhaul can be solved. The structure comprises a first coating assembly and a second coating assembly which are respectively fixed on a stator side plate through a first fixing assembly and a second fixing assembly, each of the first coating assembly and the second coating assembly comprises a coating layer and a skin plate, the first coating assembly is embedded in the second coating assembly, the inner side face of the coating layer is used for abutting against a stator flange, and the first fixing assembly comprises a heat preservation nail and a self-locking pressing piece. The nail head is used for being fixed to a stator side plate, the nail body sequentially penetrates through a coating layer of the first coating assembly and a skin plate, a base plate layer comprising a plurality of base plates is arranged on the inner side face of a coating layer of the second coating assembly, and the adjacent base plates are used for being arranged on the inner side and the outer side of corresponding channel steel and connected with the channel steel. The coating layer of the second coating assembly comprises a plurality of sub-coating layers, and the adjacent sub-coating layers are used for being arranged on the inner side and the outer side of the corresponding steel channel.

Description

Technical Field

[0001] The utility model relates to a covering structure, in particular to a centrifugal fan covering structure which is easy to install. Background Art

[0002] Centrifugal fans are typically used in industrial applications to transport gaseous media, which can change in density due to temperature, thereby altering the actual operating conditions of the centrifugal fan. Therefore, the stator components of centrifugal fans are typically coated with insulation materials to reduce the impact of temperature changes. The stator components include stator side plates, stator flanges mounted on the stator side plates, and at least two channel steels. In the prior art, due to the relatively thick coating, a larger diameter lead screw is typically used as a fixing component to ensure the rigidity of the coating. However, using a lead screw to fix the coating can result in larger cracks in the coating, and the fixing process is difficult, time-consuming, and labor-intensive, making it inconvenient for fan maintenance. Utility Model Content

[0003] The purpose of the utility model is to solve the technical problems that using a screw to fix the covering layer will cause large cracks in the covering layer, and the fixing process is difficult, time-consuming and labor-intensive, and inconvenient for fan maintenance, and to provide a centrifugal fan covering structure that is easy to install.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A centrifugal fan covering structure that is easy to install, which has the following characteristics:

[0006] including a first covering component and a second covering component;

[0007] The first covering component is used to be fixed on the stator side plate through multiple first fixing components, the second covering component is used to be fixed on the stator side plate through at least three second fixing components, and the first covering component is embedded in the second covering component;

[0008] The first covering assembly and the second covering assembly each include a covering layer and a skin plate arranged sequentially from the inside to the outside, the covering layer is used to insulate the stator component from heat and sound, and the skin plate is used to prevent the covering layer from being damaged and contaminated by dust;

[0009] The inner side surface of the covering layer of the first covering component is used to abut against a corresponding position of the external stator flange;

[0010] Each of the first fixing components includes an insulation nail and a self-locking pressure piece. The insulation nail includes a nail head, a nail body, and a nail tail connected in sequence. The nail head is used to be fixed to the stator side plate. The nail body passes through the covering layer of the first covering component and the skin plate in sequence. The nail tail is located outside the skin plate. The self-locking pressure piece is sleeved at the connection between the nail tail and the nail body and is tightly attached to the skin plate.

[0011] A substrate layer of the same shape is provided on the inner side of the covering layer of the second covering component, the substrate layer comprising a plurality of base plates arranged in sequence, two adjacent base plates being used to be arranged on the inner and outer sides of a corresponding channel steel and both being connected to the channel steel;

[0012] The covering layer of the second covering component includes a plurality of sub-covering layers, and two adjacent sub-covering layers are used to be arranged on the inner and outer sides of the corresponding channel steel;

[0013] The structure of the second fixing component is the same as that of the first fixing component. The nail head of the insulation nail of the second fixing component is used to be fixed on the stator side plate. The nail body of the insulation nail passes through the base plate, the covering layer of the second covering component and the skin plate in sequence. The nail tail is located outside the skin plate. The self-locking pressure piece of the second fixing component is sleeved at the connection between the nail tail and the nail body and is tightly attached to the skin plate.

[0014] Furthermore, the nail head and the nail tail are perpendicular to the nail body, and the diameter of the nail body is 4mm to 6mm.

[0015] Furthermore, the number of the first fixing components is two, and the two first fixing components are respectively located on both sides of the stator flange and are symmetrically arranged.

[0016] Furthermore, the coating layer is formed by stacking at least two sub-coating layers in sequence from the inside to the outside.

[0017] Furthermore, the insulation nails are made of low carbon steel or stainless steel;

[0018] The coating layer is made of glass wool, mineral wool or rock wool.

[0019] Furthermore, the nail heads of the insulation nails and the stator side plates, as well as the two adjacent base plates and the corresponding channel steels are welded.

[0020] Beneficial effects of the utility model:

[0021] 1. The present invention provides a centrifugal fan cover structure that is easy to install. This cover structure can effectively improve construction results, reduce construction workload, and enhance quality and efficiency. Insulation nails and self-locking pressure plates are used to secure the first and second cover components, resulting in a simple, minimally destructive, and highly efficient fixation process. Because the first cover component is embedded within the second cover component, the first cover component can be removed independently, facilitating the assembly and disassembly of some stator components during fan maintenance.

[0022] 2. When the insulation nail of the utility model is in use, its nail head and nail tail are perpendicular to the nail body, which has good rigidity. The diameter of the insulation nail body is 4mm to 6mm, which is conducive to ensuring the fixed rigidity of the coating.

[0023] 3. The insulation nails in the present invention are made of low carbon steel or stainless steel, which is convenient for welding on the stator side plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional view of an embodiment of a centrifugal fan covering structure that is easy to install according to the utility model.

[0025] Description of reference numerals:

[0026] 1- stator side plate, 3- base plate, 4- cladding layer, 5- skin plate, 6- first fixing assembly, 7- stator flange, 8- first cladding assembly, 9- second cladding assembly, 10- second fixing assembly, 11- insulation nail, 12- self-locking pressing sheet, 13- first channel steel, 14- second channel steel. DETAILED DESCRIPTION

[0027] like Figure 1As shown, a centrifugal fan covering structure that is easy to install includes a first covering assembly 8 and a second covering assembly 9. The first covering assembly 8 is used to be fixed to the external stator side plate 1 via two first fixing assemblies 6, and the second covering assembly 9 is used to be fixed to the external stator side plate 1 via three second fixing assemblies 10. The first covering assembly 8 is embedded in the second covering assembly 9. Specifically, the first covering assembly 8 and the second covering assembly 9 each include a covering layer 4 and a skin panel 5, which are arranged in sequence from the inside to the outside. The covering layer 4 is used to insulate and soundproof the stator components, and the skin panel 5 is used to protect the covering layer 4 from damage and dust contamination. Among them, the inner side surface of the covering layer 4 of the first covering component 8 is used to abut against the corresponding position of the external stator flange 7. The two first fixing components 6 are respectively located on both sides of the stator flange 7 and are symmetrically arranged. Each first fixing component 6 includes an insulation nail 11 and a self-locking pressure piece 12. The insulation nail 11 includes a nail head, a nail body, and a nail tail connected in sequence. The nail head is perpendicular to the nail body. The nail body diameter of the insulation nail 11 is 5 mm. The nail head of the insulation nail 11 is used to be welded on the stator side plate 1. The nail body passes through the covering layer 4 and the skin plate 5 of the first covering component 8 in sequence. The nail tail is located outside the skin plate 5. The self-locking pressure piece 12 is sleeved at the connection between the nail tail and the nail body and is tightly attached to the skin plate 5. After the self-locking pressure piece 12 is tightly attached to the skin plate 5, the nail tail is bent so that the nail tail is perpendicular to the nail body, which can prevent the covering layer 4 and the skin plate 5 of the first covering component 8 from shaking and falling off. The inner side surface of the covering layer 4 of the second covering assembly 9 is provided with a substrate layer of the same shape. The substrate layer includes three base plates 3 arranged in sequence. One base plate 3 is used to be welded between the inner bottom of the first channel steel 13 and the outer bottom of the second channel steel 14. The second channel steel 14 is located between the first channel steel 13 and the stator flange 7. Another base plate 3 is used to be welded to the outer bottom of the first channel steel 13, and the remaining base plate 3 is used to be welded to the inner bottom of the second channel steel 14. The covering layer 4 of the second covering assembly 9 includes three sub-covering layers, one of which is located between the first channel steel 13 and the second channel steel 14, another sub-covering layer is located outside the first channel steel 13, and the remaining sub-covering layer is located inside the second channel steel 14. Two second fixing assemblies 10 are located between the first channel steel 13 and the second channel steel 14, and the remaining second fixing assembly 10 is located between the second channel steel 14 and the first covering assembly 8. The second fixing component 10 has the same structure as the first fixing component 6. The nail head of the insulation nail 11 of the second fixing component 10 is used to be fixed on the stator side plate 1. The nail body of the insulation nail 11 passes through the base plate 3, the covering layer 4 of the second covering component 9 and the skin plate 5 in sequence. The nail tail is located outside the skin plate 5. The self-locking pressure piece 12 of the second fixing component 10 is sleeved at the connection between the nail tail and the nail body and is tightly attached to the skin plate 5. After the self-locking pressure piece 12 is tightly attached to the skin plate 5, the nail tail is bent so that the nail tail is perpendicular to the nail body, which can prevent the covering layer 4 of the second covering component 9 and the skin plate 5 from shaking and falling off.

[0028] In this embodiment, the coating 4 is formed by stacking three sub-coatings from the inside out, the insulation nails 11 are made of low-carbon steel, and the coating 4 is made of glass wool. In other embodiments, the insulation nails 11 can be made of stainless steel, and the coating 4 can be made of mineral wool or rock wool.

[0029] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present invention shall be covered by the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A centrifugal fan covering structure that is easy to install, characterized by: It comprises a first covering component (8) and a second covering component (9); The first covering component (8) is used to be fixed on the stator side plate (1) through a plurality of first fixing components (6), the second covering component (9) is used to be fixed on the stator side plate (1) through at least three second fixing components (10), and the first covering component (8) is embedded in the second covering component (9); The first covering assembly (8) and the second covering assembly (9) both comprise a covering layer (4) and a skin plate (5) arranged sequentially from the inside to the outside, the covering layer (4) being used to insulate the stator components from heat and sound, and the skin plate (5) being used to prevent the covering layer (4) from being damaged and contaminated by dust; The inner side surface of the coating layer (4) of the first coating component (8) is used to abut against a corresponding position of the external stator flange (7); Each of the first fixing components (6) includes an insulation nail (11) and a self-locking pressure piece (12), the insulation nail (11) includes a nail head, a nail body, and a nail tail connected in sequence, the nail head is used to be fixed on the stator side plate (1), the nail body passes through the coating layer (4) of the first coating component (8) and the skin plate (5) in sequence, the nail tail is located outside the skin plate (5), and the self-locking pressure piece (12) is sleeved at the connection between the nail tail and the nail body and is tightly attached to the skin plate (5); A substrate layer of the same shape is provided on the inner side surface of the coating layer (4) of the second coating component (9), the substrate layer comprising a plurality of base plates (3) arranged in sequence, two adjacent base plates (3) being used to be arranged on the inner and outer sides of a corresponding channel steel and both being connected to the channel steel; The coating layer (4) of the second coating component (9) comprises a plurality of sub-coating layers, and two adjacent sub-coating layers are used to be arranged on the inner and outer sides of the corresponding channel steel; The second fixing assembly (10) has the same structure as the first fixing assembly (6); the nail head of the insulation nail (11) of the second fixing assembly (10) is used to be fixed on the stator side plate (1); the nail body of the insulation nail (11) passes through the base plate (3), the covering layer (4) of the second covering assembly (9) and the skin plate (5) in sequence; the nail tail is located outside the skin plate (5); the self-locking pressure piece (12) of the second fixing assembly (10) is sleeved at the connection between the nail tail and the nail body and is tightly attached to the skin plate (5).

2. The centrifugal fan covering structure that is easy to install according to claim 1 is characterized in that: The nail head and the nail tail are both perpendicular to the nail body, and the diameter of the nail body is 4mm to 6mm.

3. The centrifugal fan covering structure that is easy to install according to claim 2, characterized in that: The number of the first fixing components (6) is two, and the two first fixing components (6) are respectively located on both sides of the stator flange (7) and are symmetrically arranged.

4. The centrifugal fan cover structure that is easy to install according to claim 3 is characterized in that: The coating layer (4) is formed by stacking at least two sub-coating layers in sequence from the inside to the outside.

5. The centrifugal fan covering structure that is easy to install according to claim 4 is characterized in that: The heat-insulating nails (11) are made of low-carbon steel or stainless steel; The coating layer (4) is made of glass wool, mineral wool or rock wool.

6. The centrifugal fan cover structure that is easy to install according to claim 5, characterized in that: The nail heads of the heat-insulating nails (11) and the stator side plates (1), as well as the two adjacent base plates (3) and the corresponding channel steels are all welded.

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