Low-noise high-pressure centrifugal fan turbine device

Abstract

The utility model relates to the field of centrifugal fans, in particular to a low-noise high-pressure centrifugal fan turbine device which comprises a turbine shell, an upper cover plate and a turbine disc, a first installation disc is installed in the middle of the turbine shell, a plurality of sets of turbine blades are fixedly installed on the upper portion of the first installation disc through a locking disc, and a wrap angle is arranged at one end of each set of turbine blades. A cover plate is fixedly connected to the tops of the turbine blades, an upper cover plate is arranged above the cover plate, and the upper cover plate is installed on the turbine shell in a covering mode. According to the turbine blade, wrap angle treatment is carried out on the edge of the front edge air opening of the turbine blade, and through the specific blade arc angle, airflow separation is reduced, the flowing direction of fluid in a flow channel is changed, fluid separation noise is reduced, and airflow stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fans, in particular to a low-noise high-pressure centrifugal fan turbine device. Background Art

[0002] A centrifugal ventilator is a type of centrifugal fan with the same working principle as a centrifugal fan. It is widely used for conveying materials. Its characteristics are small flow rate, high wind pressure, good air extraction and air supply effects. It is generally used for high-pressure forced ventilation and air extraction in industries such as spraying, electroplating, radio, storage batteries, and glass manufacturing, and can also be widely used for conveying materials and gases.

[0003] Currently, when the traditional turbine device is in use, it will generate relatively large noise, which will affect the staff and the surrounding environment. Moreover, the motor of the fan will also generate relatively large noise when in use. Therefore, there is an urgent need for a low-noise high-pressure centrifugal fan turbine device. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and a low-noise high-pressure centrifugal fan turbine device is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A low-noise high-pressure centrifugal fan turbine device, including a turbine housing, an upper cover plate, and a turbine disk. An installation disk one is installed in the middle of the turbine housing. Multiple groups of turbine blades are fixedly installed on the upper part of the installation disk one through a locking disk. One end of each group of turbine blades is provided with a wrap angle, and the top of the turbine blade is fixedly connected with a cover plate. An upper cover plate is arranged above the cover plate, and the upper cover plate is covered and installed on the turbine housing;

[0007] The turbine disk includes turbine blades, wrap angles, cover plates, and installation disk one;

[0008] The bottom of the turbine blade is connected through an installation disk two, and 8 groups of turbine blades are annularly and equidistantly arranged in an array around the center of the installation disk two.

[0009] In addition, the preferred structure is that the bottom of the turbine housing is installed through a mounting plate.

[0010] In addition, the preferred structure is that an air duct opening is arranged on one side of the turbine housing, and the air duct opening is communicated with the inside of the turbine housing.

[0011] In addition, the preferred structure is that the bottom of the installation disk one is installed on the inner bottom end of the turbine housing through a shaft seat, and a fastening bolt is installed at the bottom of the installation disk one, and the other end of the fastening bolt is connected with the installation disk two.

[0012] In addition, a preferred structure is that a locking disc is covered and installed in the middle of the upper end of the second mounting disc, and the locking disc is connected to the fastening bolt.

[0013] In addition, a preferred structure is that the arc angle of each of the turbine blades is 75°.

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

[0015] In the present utility model, a fillet treatment is provided at the edge of the leading edge air inlet of the turbine blade, and through a specific blade arc angle, the air flow separation is reduced, the flow direction of the fluid in the flow channel is changed, the fluid separation noise is reduced, and the stability of the air flow is increased.

[0016] Meanwhile, the disassembly and assembly functions of the turbine disc are realized through components such as the cover plate, the locking disc, and the mounting disc. During the later use process, different numbers of turbine blades are replaced to meet the use requirements of low noise and high pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a low-noise high-pressure centrifugal fan turbine device proposed by the present utility model;

[0018] Figure 2 FIG. 2 is a schematic diagram of the structure of the turbine housing proposed by the present utility model;

[0019] Figure 3 FIG. 3 is a schematic diagram of the structure of the turbine disc proposed by the present utility model;

[0020] Figure 4 FIG. 4 is a schematic diagram of the exploded structure of the turbine disc proposed by the present utility model;

[0021] Figure 5 FIG. 5 is a schematic diagram of the installation structure of the turbine blade proposed by the present utility model;

[0022] Figure 6 FIG. 6 is a schematic diagram of the fillet structure proposed by the present utility model.

[0023] In the figures: 1 turbine housing, 101 air inlet, 2 mounting plate, 3 upper cover plate, 4 turbine disc, 41 turbine blade, 42 fillet, 43 cover plate, 44 first mounting disc, 5 fastening bolt, 6 shaft seat, 7 second mounting disc, 8 locking disc. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Hereinafter, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0025] Refer to Figures 1-4, A low-noise high-pressure centrifugal fan turbine device, including a turbine housing 1, an upper cover plate 3, and a turbine disk 4. An installation disk one 44 is installed in the middle of the turbine housing 1. Multiple groups of turbine blades 41 are fixedly installed on the upper part of the installation disk one 44 through a locking disk 8. One end of each group of turbine blades 41 is provided with a wrap angle 42, and the top of the turbine blade 41 is fixedly connected with a cover plate 43. An upper cover plate 3 is arranged above the cover plate 43, and the upper cover plate 3 is covered and installed on the turbine housing 1;

[0026] Further, the turbine disk 4 includes turbine blades 41, wrap angles 42, cover plates 43, and installation disk one 44;

[0027] Further, the bottom of the turbine blade 41 is connected through an installation disk two 7, and 8 groups of turbine blades 41 are arranged in an annular equidistant array around the center of the installation disk two 7. With a specific number of turbine blades 41, the control of the fluid inside the turbine is effectively improved, thereby reducing the generation of internal noise.

[0028] Further, the bottom of the turbine housing 1 is installed through a mounting plate 2.

[0029] Further, an air duct opening 101 is provided on one side of the turbine housing 1, and the air duct opening 101 is communicated with the inside of the turbine housing 1.

[0030] Further, the bottom of the installation disk one 44 is installed on the inner bottom end of the turbine housing 1 through a shaft seat 6, and a fastening bolt 5 is installed at the bottom of the installation disk one 44. The other end of the fastening bolt 5 is connected with the installation disk two 7.

[0031] Further, a locking disk 8 is covered and installed in the middle of the upper end of the installation disk two 7, and the locking disk 8 is connected with the fastening bolt 5.

[0032] Further, the arc angle of each turbine blade 41 is 75°.

[0033] In this embodiment, during the high-speed rotation of the turbine blade 41, due to its specific number and specific arc angle setting, it can play a role in stabilizing the air flow, thereby reducing the overall noise inside the turbine housing 1 and affecting its wind pressure.

[0034] At the same time, the turbine blade 41 is pressed through the locking disk 8 and locked with the installation disk one 44 through the fastening bolt 5 to ensure its connection stability.

[0035] Among them, during the actual use process, a wrap angle 42 treatment is provided at the edge of the leading edge air duct of the turbine blade 41. When the air flow passes through the turbine blade 41, its wrap angle 42 design can change the flow direction of the fluid in the flow channel and reduce the fluid separation noise.

[0036] Among them, during actual use, the turbine disk 4 of the 8 groups of turbine blades 41 is disassembled and replaced, and the turbine disk 4 of the 20 groups of turbine blades 41 is used to meet the usage requirements of different air volumes, air pressures, and noises.

[0037] Among them, during actual use, the top of each group of turbine blades 41 is connected to the cover plate 43 through a welding process to ensure connection stability and usage stability.

[0038] Among them, during actual use, no matter whether the turbine disk 4 rotates clockwise or counterclockwise, the arc direction of the internal turbine blades 41 always follows the air outlet (air duct opening).

[0039] In the present utility model, a fillet 42 treatment is provided at the edge of the leading edge air inlet of the turbine blade 41, and through a specific blade arc angle, the air flow separation is reduced, the flow direction of the fluid in the flow channel is changed, the fluid separation noise is reduced, and the stability of the air flow is increased.

[0040] At the same time, the disassembly and assembly function of the turbine disk 4 is realized through components such as the cover plate 43, the locking disk 8, and the mounting disk. During the later use process, the turbine blades 41 with different numbers of blades are replaced to meet the usage requirements of low noise and high pressure.

[0041] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent replacements or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A low-noise, high-pressure centrifugal fan turbine device, comprising a turbine housing (1), an upper cover plate (3), and a turbine disc (4), characterized in that: A mounting plate (44) is installed in the middle of the turbine housing (1), and a plurality of groups of turbine blades (41) are fixedly installed on the upper part of the mounting plate (44) via a locking plate (8), one end of each group of turbine blades (41) is provided with a wrap angle (42), and a cover plate (43) is fixedly connected to the top of the turbine blades (41), and an upper cover plate (3) is provided above the cover plate (43), and the upper cover plate (3) is mounted on the turbine housing (1); The turbine disk (4) comprises turbine blades (41), wrap angles (42), a cover plate (43), and a mounting disk (44); The bottom of the turbine blades (41) is connected via the second mounting plate (7), and the turbine blades (41) are arranged in a circular equidistant array in eight groups at the center of the second mounting plate (7).

2. A low-noise, high-pressure centrifugal fan turbine device according to claim 1, characterized in that: The bottom of the turbine housing (1) is mounted via a mounting plate (2).

3. A low-noise, high-pressure centrifugal fan turbine device according to claim 1, characterized in that: An air duct opening (101) is provided on one side of the turbine housing (1), and the air duct opening (101) is communicated with the interior of the turbine housing (1).

4. A low-noise, high-pressure centrifugal fan turbine device according to claim 1, characterized in that: The bottom of the mounting plate 1 (44) is mounted on the inner bottom end of the turbine housing (1) via a shaft seat (6), and a fastening bolt (5) is installed on the bottom of the mounting plate 1 (44), and the other end of the fastening bolt (5) is connected to the mounting plate 2 (7).

5. A low-noise, high-pressure centrifugal fan turbine device according to claim 4, characterized in that: A locking plate (8) is installed on the middle cover of the upper end of the second mounting plate (7), and the locking plate (8) is connected to the fastening bolt (5).

6. A low-noise, high-pressure centrifugal fan turbine device according to claim 1, characterized in that: The arc angle of each turbine blade (41) is 75°.

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