Low-noise high-speed sealing fan

Abstract

The utility model discloses a low-noise high-speed sealing fan, which relates to the technical field of fan noise reduction and comprises a frame body, an air bellow is mounted at the top end of the frame body, a fan is mounted on one side of the air bellow, an air pipe is connected to the top end of the air bellow, and a noise reduction component for reducing noise is arranged on the outer wall of the air bellow. The noise reduction assembly comprises a first shell and a second shell, the first shell and the second shell are detachably connected through bolts, and a sealing ring is arranged at the joint of the first shell and the second shell. According to the noise reduction assembly, noise is effectively removed through vacuum and the sound absorption cotton, noise pollution caused by the noise is greatly reduced, and low-noise production is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fan noise reduction, and particularly relates to a low-noise high-speed sealed fan. Background Technique

[0002] A fan is our customary abbreviation for a gas compression and gas transportation machine. Generally speaking, fans include ventilators, blowers, and wind turbines. A gas compression and gas transportation machine is a machine that converts rotational mechanical energy into gas pressure energy and kinetic energy and transports the gas out; the main structural components of a fan are an impeller, a casing, an air inlet, a bracket, a motor, a pulley, a coupling, transmission parts, etc.

[0003] At present, with the development of fan technology, various types of fans suitable for modern production have emerged, such as high-speed fans. However, with the increase in the fan speed, the noise generated by it will also increase exponentially. Through on-site inspection and research of the fan, we have proposed a low-noise high-speed sealed fan aiming at the characteristics of noise generation. Content of the Utility Model

[0004] Based on this, the purpose of the utility model is to provide a low-noise high-speed sealed fan to solve the technical problems mentioned in the above background.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A low-noise high-speed sealed fan, including a frame body, on the top end of the frame body is installed an air box, and on one side of the air box is installed a fan, and on the top end of the air box is connected an air duct. The outer wall of the air box is provided with a noise reduction component for noise reduction, and the noise reduction component includes a first shell and a second shell. The first shell and the second shell are detachably connected by bolts, and a sealing ring is arranged at the connection between the first shell and the second shell.

[0006] By adopting the above technical scheme, the use of vacuum and sound-absorbing cotton effectively removes noise, greatly reduces the noise pollution caused by noise, and realizes low-noise production.

[0007] The utility model is further set as that second vacuum cavities are opened inside both the first shell and the second shell, and multiple groups of sound-absorbing cotton are installed inside the second vacuum cavities.

[0008] By adopting the above technical scheme, it has the effect of eliminating noise.

[0009] The utility model is further set as that sealing parts which are hermetically connected and fitted with the outer wall of the fan are arranged at both ends of the first shell and the second shell, and first vacuum cavities are opened inside both the first shell and the second shell. An air extraction port communicated with the first vacuum cavity is installed on the outer wall of each sealing part to realize the vacuum pumping of the first vacuum cavity.

[0010] By adopting the above technical solution, the effect of eliminating noise is achieved.

[0011] The utility model is further configured such that heat dissipation bags are disposed on the inner sides of the first housing and the second housing in contact with the outer wall of the blower, and cooling water is filled inside the heat dissipation bags.

[0012] By adopting the above technical solution, the effect of dissipating heat from the blower is achieved.

[0013] The utility model is further configured such that a plurality of cooling pipes are distributed at intervals and annularly inside the heat dissipation bags, and the ends of the plurality of cooling pipes are connected in communication with an annular air pipe. The other ends of the plurality of cooling pipes are connected in communication with a second group of the annular air pipes. The top end of one group of the annular air pipes is connected in communication with an air inlet pipe extending into the air box, and the bottom end of the other group of the annular air pipes is connected in communication with an air outlet pipe extending below the blower.

[0014] By adopting the above technical solution, the effect of cooling and dissipating heat from the heat dissipation bags is achieved.

[0015] In summary, the utility model mainly has the following beneficial effects:

[0016] 1. By providing a noise reduction component in the utility model, after the blower is started, the noise generated by the operation of the blower will be isolated under the action of the vacuum in the first vacuum chamber, thereby reducing the sound waves transmitted from the blower to achieve the purpose of noise reduction. In addition, the second vacuum chamber opened in the housing can further isolate the noise, and the sound-absorbing cotton in the second vacuum chamber can further suppress the noise. Through the above structure, the effective suppression of the blower noise is realized, that is, the purpose of low-noise production is achieved;

[0017] 2. By providing heat dissipation bags in the utility model, since the setting of the noise reduction component will affect the heat dissipation of the blower, we add heat dissipation bags to ensure the heat dissipation of the blower. Specifically, the cooling water in the heat dissipation bags can absorb the heat generated by the operation of the blower, thereby providing good heat dissipation for the blower. In addition, when the air flow generated by the blower passes through the air box, a very small part will enter the annular air pipe through the air inlet pipe, and the air flow in the annular air pipe will flow into the plurality of cooling pipes in the heat dissipation bags, realizing the air-cooling effect on the cooling water in the heat dissipation bags only, ensuring the heat dissipation quality of the heat dissipation bags. Finally, the air flow flowing through the cooling pipes will flow into the annular air pipe at the other end and be discharged to the outside through the air outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 is a schematic diagram of the installation of the heat dissipation bag of the utility model;

[0020] Figure 3 Schematic diagram of the installation of the sound-absorbing cotton of the present utility model;

[0021] Figure 4 Schematic diagram of the first end part of the internal structure of the heat dissipation bag of the present utility model;

[0022] Figure 5 Schematic diagram of the second end part of the internal structure of the heat dissipation bag of the present utility model.

[0023] In the figure: 1, frame body; 2, air box; 3, fan; 4, air duct; 5, noise reduction component; 51, first shell; 52, second shell; 53, second vacuum chamber; 6, sealing part; 7, first vacuum chamber; 8, air extraction port; 9, heat dissipation bag; 10, sound-absorbing cotton; 11, cooling pipe; 12, annular air pipe; 13, intake pipe; 14, outlet pipe. Specific implementation manners

[0024] Next, 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. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.

[0025] Next, the embodiments of the present utility model will be described according to the overall structure of the present utility model.

[0026] A low-noise high-speed sealed fan, as Figures 1-5 shown, includes a frame body 1. An air box 2 is installed at the top of the frame body 1, and a fan 3 is installed on one side of the air box 2. An air duct 4 is connected to the top of the air box 2. A noise reduction component 5 for noise reduction is provided on the outer wall of the air box 2. The noise reduction component 5 includes a first shell 51 and a second shell 52. The first shell 51 and the second shell 52 are detachably connected by bolts, and a sealing ring is provided at the connection between the first shell 51 and the second shell 52;

[0027] Further, in this embodiment, second vacuum chambers 53 are respectively opened inside the first shell 51 and the second shell 52, and multiple groups of sound-absorbing cotton 10 are installed inside the second vacuum chambers 53.

[0028] Please refer to Figures 2-3 , sealing parts 6 that are hermetically connected to the outer wall of the fan 3 are respectively provided at both ends of the first shell 51 and the second shell 52. First vacuum chambers 7 are respectively opened inside the first shell 51 and the second shell 52. Air extraction ports 8 that are connected and communicated with the first vacuum chambers 7 are installed on the outer wall of each sealing part 6 to realize the evacuation of the first vacuum chambers 7.

[0029] Please refer to Figure 2, a heat dissipation bag 9 is arranged on the inner sides of the first housing 51 and the second housing 52 in a manner that fits against the outer wall of the fan 3, and the heat dissipation bag 9 is filled with cooling water inside to achieve the effect of cooling the fan 3.

[0030] Please refer to Figures 4-5 , multiple groups of cooling pipes 11 are arranged at intervals inside the heat dissipation bag 9 and distributed in a ring shape. The ends of the multiple groups of cooling pipes 11 are connected in a communicating manner to form a ring-shaped air pipe 12. The other ends of the multiple groups of cooling pipes 11 are connected in a communicating manner to form a second group of ring-shaped air pipes 12. The top end of one group of ring-shaped air pipes 12 is connected in a communicating manner to an air inlet pipe 13 that extends into the air box 2, and the bottom end of the other group of ring-shaped air pipes 12 is connected in a communicating manner to an air outlet pipe 14 that extends below the fan 3, achieving the effect of cooling the heat dissipation bag 9.

[0031] The working principle of the present utility model is as follows: After the fan 3 is started, the noise generated during the operation of the fan 3 will be isolated under the action of the vacuum in the first vacuum chamber 7, thereby reducing the sound waves transmitted from the fan 3 to achieve the purpose of noise reduction.

[0032] In addition, the second vacuum chamber 53 opened in the housing can further isolate the noise, and the sound-absorbing cotton 10 in the second vacuum chamber 53 can also further suppress the noise, achieving the effective suppression of the noise of the fan 3, that is, achieving the purpose of low-noise production.

[0033] Furthermore, since the setting of the noise reduction component 5 will affect the heat dissipation of the fan 3, for this reason, we added a heat dissipation bag 9 to ensure the heat dissipation of the fan 3. Specifically, the cooling water in the heat dissipation bag 9 can absorb the heat generated during the operation of the fan 3, thus providing good heat dissipation for the fan 3. In addition, when the airflow generated by the fan 3 passes through the air box 2, a very small part of it will enter the ring-shaped air pipe 12 through the air inlet pipe 13, and the airflow in the ring-shaped air pipe 12 will flow into the multiple groups of cooling pipes 11 in the heat dissipation bag 9, achieving the air-cooling effect on the cooling water in the heat dissipation bag 9 and ensuring the heat dissipation quality of the heat dissipation bag 9. Finally, the airflow flowing through the cooling pipes 11 will flow into the ring-shaped air pipe 12 at the other end and be discharged to the outside through the air outlet pipe 14.

[0034] Although the embodiments of the present utility model have been shown and described, the specific embodiments are only explanations of the present utility model and do not limit the utility model. The specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions, and variations that do not contribute creatively to the embodiments according to needs, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

Claims

1. A low-noise, high-speed sealed fan, comprising a frame (1), characterized in that: A bellows (2) is installed at the top of the frame (1), a fan (3) is installed on one side of the bellows (2), and a wind duct (4) is connected to the top of the bellows (2); a noise reduction component (5) for reducing noise is provided on the outer wall of the bellows (2), and the noise reduction component (5) comprises a first shell (51) and a second shell (52); the first shell (51) and the second shell (52) are detachably connected by bolts, and a sealing ring is provided at the connection between the first shell (51) and the second shell (52); A second vacuum chamber (53) is provided inside each of the first shell (51) and the second shell (52), and a plurality of groups of sound-absorbing cotton (10) are installed inside the second vacuum chamber (53); Both end portions of the first shell (51) and the second shell (52) are provided with sealing portions (6) that are closely connected to the outer wall of the fan (3) in a sealed manner, and a first vacuum chamber (7) is provided inside the first shell (51) and the second shell (52); The outer wall of each group of the sealing parts (6) is provided with an exhaust port (8) which is in communication with the first vacuum chamber (7) so as to realize vacuuming of the first vacuum chamber (7).

2. A low-noise, high-speed sealed fan according to claim 1, characterized in that: A heat dissipation bag (9) is provided on the inner side of the first shell (51) and the second shell (52) and is attached to the outer wall of the fan (3), and the heat dissipation bag (9) is filled with cooling water.

3. A low-noise, high-speed sealed fan according to claim 2, characterized in that: The heat dissipation bag (9) has multiple groups of cooling tubes (11) spaced apart and distributed in an annular pattern inside, and the ends of the multiple groups of cooling tubes (11) are connected to an annular air pipe (12), while the other ends of the multiple groups of cooling tubes (11) are connected to a second group of annular air pipes (12).

4. A low-noise, high-speed sealed fan according to claim 3, characterized in that: The top ends of one group of the annular air pipes (12) are connected to an air inlet pipe (13) extending into the bellows (2), while the bottom ends of the other group of the annular air pipes (12) are connected to an air outlet pipe (14) extending below the fan (3).

Images