Partition plate for double-impeller fan

Abstract

The partition plate for the double-impeller fan comprises a partition piece and a circular ring, the partition piece is formed by extending the side edge of the circular ring in the tangential direction, the two side faces of the partition piece are each provided with a flow guide noise reduction shell, each flow guide noise reduction shell is provided with a plurality of pits, and the outer end of each flow guide noise reduction shell is provided with a flow guide inclined face. The partition plate is additionally arranged between the two volutes, the partition piece of the partition plate is used for separating the two air outlets, each fan impeller does not need to be independently provided with an air outlet, the requirement of a compact occasion is met, cost is low, installation is convenient, the noise reduction effect is good, and the flow guide effect is good.

Description

Technical Field

[0001] The utility model relates to a fan, in particular to a partition plate for a double-impeller fan. Background Art

[0002] When conveying two different media, two sets of fans need to be designed, each with its own air inlet and outlet to achieve the purpose. At present, in order to save volume, the volutes of the two fans are spliced ​​together, and the drive motors of the two fans are integrated into one, so as to achieve the purpose of small volume and no space occupation. However, the current spliced ​​air outlet position is relatively thick, which does not meet the requirements of compact occasions. At the same time, the air outlet will also generate noise due to the large air volume and high air pressure, affecting the environment. Utility Model Content

[0003] In order to solve the defects of the above-mentioned prior art, the utility model provides a partition for a double-impeller fan. The utility model arranges a partition and installs it between two volutes. The partition position of the partition is used to separate the two air outlets. There is no need to set an air outlet separately for each fan impeller. It meets the requirements of compact occasions, has low cost, easy installation, good noise reduction effect, and good diversion effect.

[0004] In order to achieve the above technical objectives, the utility model adopts the following technical solutions: a partition for a double-impeller fan, comprising a partition and a ring, wherein the partition is formed by tangentially extending from the side edge of the ring, and both side surfaces of the partition are provided with a guide noise reduction shell, the guide noise reduction shell is provided with a plurality of pits, and the outer end of the guide noise reduction shell is a guide slope.

[0005] Furthermore, a ring plate is provided at the inner circle of the circular ring, both ends of the ring plate are higher than the surface of the circular ring, and the spacer is flush with the circular ring.

[0006] Furthermore, the outer edges of the circular ring and the spacer are both provided with fixing plates for fixing connection to two volutes of the fan.

[0007] Furthermore, the surface of the guide noise reduction shell includes a flat surface and the guide slope, the flat surface is connected to the guide slope, the flat surface is flush with the surface of the ring plate, and the guide slope gradually approaches the spacer surface from the flat surface until it connects with the outer end of the spacer.

[0008] Furthermore, a surface of the spacer is provided with reinforcing ribs, and the surface of the reinforcing ribs is connected to the inner wall of the diversion and noise reduction shell.

[0009] In summary, the utility model has achieved the following technical effects:

[0010] After the volutes are spliced ​​together, the utility model uses a spacer to separate two air outlets, so that the thickness of the air outlet is smaller, thereby compressing the volume of the fan;

[0011] The utility model arranges a shell plate for guiding and reducing noise on the partition to reduce the noise at the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of a partition plate for a double-impeller fan provided by an embodiment of the utility model;

[0013] Figure 2 It is a schematic diagram of the hidden diversion and noise reduction shell;

[0014] Figure 3 It is the connection between the partition and the two volutes. DETAILED DESCRIPTION

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0016] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0018] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0019] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0021] Example:

[0022] Figure 1 A partition plate for a double impeller fan, used for installation between the first volute 9 and the second volute 10 of the double impeller fan ( Figure 3 As shown) Figure 1 As shown, the partition includes a partition 1 and a ring 2, the partition 1 is formed by tangentially extending from the side edge of the ring 2, the center of the ring 2 is a through hole for placing a double-sided impeller, the first impeller of the double-sided impeller is located in the first volute 9, the second impeller is located in the second volute 10, the middle mounting plate of the double-sided impeller is located in the through hole of the ring 2, and forms a first cavity with the first volute 9 for high wind pressure output, and forms a second cavity with the second volute for high wind volume output, combined with Figure 3 The air outlets of the two cavities are separated by a partition 1 to form a first air outlet 11 and a second air outlet 12 .

[0023] After the volute is spliced ​​together, the utility model uses a spacer to separate two air outlets, so that the thickness of the air outlet is smaller, thereby compressing the volume of the fan. When the gases delivered by the two impellers are different, the air outlets of the two fans are compressed by adding a spacer, thereby achieving the purpose of reducing the total thickness of the fan.

[0024] like Figure 1As shown, both sides of the partition 1 are provided with a guide noise reduction shell 4, which is respectively located in the first air outlet 11 and the second air outlet 12, and can achieve noise reduction and guide effects in the two air outlets. The guide noise reduction shell 4 is provided with a plurality of pits 6, and the outer end of the guide noise reduction shell 4 is a guide slope 5. The pits 6 are used for noise reduction, and the guide slope 5 is used for wind diversion.

[0025] The utility model arranges a shell plate for guiding and reducing noise on the partition to reduce the noise at the air outlet.

[0026] The inner circle of the ring 2 is provided with a ring plate 3, both ends of which are higher than the surface of the ring 2, effectively separating the two gases and extending into the first volute 9 and the second volute 10 respectively. Figure 2 The figure shows a schematic diagram of a hidden air guide and noise reduction shell 4, wherein the spacer 1 is flush with the circular ring 2, and the spacer 1 and the circular ring 2 are integrally formed and have higher strength.

[0027] like Figure 1 As shown, the surface of the guide and noise reduction shell 4 includes a flat surface and the guide slope 5, the flat surface is connected to the guide slope 5, the flat surface is flush with the surface of the ring plate 3, and the guide slope 5 gradually approaches the surface of the spacer 1 from the flat surface until it is connected to the outer end of the spacer 1. The flat surface can naturally guide the wind, and the guide slope 5 is inclined to increase the area of ​​the air outlet and discharge the wind faster.

[0028] When the wind passes through the flat surface of the guide noise reduction shell 4, part of the wind flows along the flat surface, and the other part of the wind enters the pit 6. If the medium or the wind is all close to the flat surface, it will generate a lot of noise. The utility model allows part of the wind to be close to the inner wall of the pit, thereby reducing the amount of wind close to the flat surface, reducing the impact on the flat surface, and thus reducing the noise caused by the impact. The air entering the pit 6 flows out along the curved wall of the pit, with better wind guiding performance and lower noise.

[0029] The flow-guiding and noise-reducing shell 4 of the utility model is used not only as a flow-guiding surface but also as a noise-reducing surface. At the same time, it can also enhance the strength of the spacer and prevent the spacer from being deformed.

[0030] like Figure 2 As shown, the surface of the spacer 1 is provided with reinforcing ribs 7, the surface of the reinforcing ribs 7 is connected to the inner wall of the guide noise reduction shell 4, and the guide slope 5 of the reinforcing ribs 7 is in a state of decreasing height, matching the guide slope 5. The reinforcing ribs 7 further enhance the strength of the spacer.

[0031] like Figure 2 As shown, combined Figure 3 The outer edges of the ring 2 and the spacer 1 are both provided with fixing plates 8 for fixing connection to the two volutes of the fan.

[0032] The above description is only a preferred implementation mode of the present invention, and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A partition plate for a double-impeller fan, characterized in that: The invention comprises a spacer (1) and a circular ring (2), wherein the spacer (1) is formed by tangentially extending the side edge of the circular ring (2), and both side surfaces of the spacer (1) are provided with a flow guide and noise reduction shell (4), wherein the flow guide and noise reduction shell (4) is provided with a plurality of pits (6), and the outer end of the flow guide and noise reduction shell (4) is a flow guide inclined surface (5).

2. A partition plate for a double-impeller fan according to claim 1, characterized in that: A ring plate (3) is provided on the inner circle of the circular ring (2), both ends of the ring plate (3) are higher than the surface of the circular ring (2), and the spacer (1) is flush with the circular ring (2).

3. A partition plate for a double-impeller fan according to claim 2, characterized in that: The outer edges of the circular ring (2) and the spacer (1) are both provided with fixing plates (8) for fixing and connecting to the two volutes of the fan.

4. A partition plate for a double-impeller fan according to claim 2, characterized in that: The surface of the flow guide and noise reduction shell (4) comprises a flat surface and the flow guide inclined surface (5), the flat surface is connected to the flow guide inclined surface (5), the flat surface is flush with the surface of the ring plate (3), and the flow guide inclined surface (5) gradually approaches the surface of the spacer (1) from the flat surface until it connects with the outer end of the spacer (1).

5. A partition plate for a double-impeller fan according to claim 4, characterized in that: The surface of the spacer (1) is provided with reinforcing ribs (7), and the surface of the reinforcing ribs (7) is connected to the inner wall of the flow guide and noise reduction shell (4).

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