CN217764532U

CN217764532U - Multi-stage adjusting cooling fan for cooling tower

Info

Publication number: CN217764532U
Application number: CN202221850930.2U
Authority: CN
Inventors: 王龙恩
Original assignee: Shanghai Royal Axe Industrial Development Co ltd
Current assignee: Shanghai Royal Axe Industrial Development Co ltd
Priority date: 2022-07-18
Filing date: 2022-07-18
Publication date: 2022-11-08
Anticipated expiration: 2032-07-18

Abstract

The utility model discloses a multistage adjustment cooling fan for cooling tower, including the cooling tower main part, the upper end of cooling tower main part is provided with multiunit cooling fan mechanism, and the external diameter from the bottom up of the shell of cooling fan mechanism reduces gradually, and the side air outlet has been seted up to the inside of shell, and the inside of side air outlet is provided with the filter screen that slows down the velocity of flow, and the outside of side air outlet is provided with annular duct, and the center of shock attenuation pole is connected with the pivot through the bearing, the upper end fixedly connected with flabellum of pivot, and the lower extreme of pivot is connected with the motor. The inside in the annular wind channel of the device's inside is provided with the acoustic celotex board, can further reduce exhaust fan mechanism at the noise that the during operation produced, and the air current of shell reduces the impact of flabellum after weakening, reduces the vibration that the pivot of flabellum and lower extreme produced to reduce the noise production of cooling fan mechanism, and through the shock attenuation pole, can reduce the vibration of pivot, compare in current device, simple structure, long service life, the input cost is lower simultaneously.

Description

Multi-stage adjusting cooling fan for cooling tower

Technical Field

The utility model relates to a technical field of cooling fan especially relates to a multistage regulation cooling fan for cooling tower.

Background

Cooling towers are devices that use water or other liquid as a circulating coolant to absorb heat from a system and discharge the heat to the atmosphere to reduce the temperature of the water; the existing cooling tower is generally provided with a fan on the upper surface thereof for discharging hot air generated in the cooling tower outwards, and the noise of the existing cooling tower can be reduced due to the impact of air flow and the operation of the existing cooling tower, most of the existing solutions utilize a silencing pipe and an externally-arranged sound insulation component to reduce the noise of the existing cooling tower, but the improved cooling tower has higher cost, the device is more complex, the damage is easy to occur, and the service life of the whole cooling tower is shorter.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and provides a multistage adjusting cooling fan for a cooling tower.

In order to realize the purpose, the utility model adopts the following technical scheme: a multi-stage adjusting cooling fan for a cooling tower comprises a cooling tower main body, wherein a plurality of groups of cooling fan mechanisms are arranged at the upper end of the cooling tower main body;

the outer diameter of a shell of the cooling fan mechanism is gradually reduced from bottom to top, a side air outlet is formed in the shell, a filter screen for reducing the flow speed is arranged in the side air outlet, and an annular air duct is arranged outside the side air outlet;

the utility model discloses a damping device, including shell, shock attenuation pole, pivot, upper end fixedly connected with flabellum, the inside of shell is provided with along the inside radial shock attenuation pole that sets up of shell, the shock attenuation pole is provided with the multiunit, the center of shock attenuation pole is connected with the pivot through the bearing, the upper end fixedly connected with flabellum of pivot, the lower extreme of pivot is connected with the motor.

As a further description of the above technical solution: and sound insulation boards are arranged on the inner walls of the shell and the annular air duct.

As a further description of the above technical solution: the side air outlet is an annular air outlet, and the angle between the cross section of the side air outlet and the inner wall of the annular air duct is an acute angle.

As a further description of the above technical solution: the acute angle ranges from 15 to 30 degrees.

As a further description of the above technical solution: the damping rods are at least two groups, and through holes in the damping rods and the central axis of the rotating shaft are in the same straight line.

As a further description of the above technical solution: the annular air duct is arranged at the outlet close to the shell.

As a further description of the above technical solution: the cooling fan mechanism is provided with at least two groups, and is evenly distributed on the top end of the cooling tower main body.

As a further description of the above technical solution: the annular air duct is fixedly connected to the outer portion of the shell through bolts.

As a further description of the above technical solution: the outer surfaces of the shock absorption rod, the rotating shaft and the fan blades are coated with anti-corrosion coatings.

As a further description of the above technical solution: the inclination angle of the annular air duct is the same as that of the shell.

The utility model discloses following beneficial effect has:

1. the utility model discloses an inside of shell is provided with the side air outlet, and the side air outlet is the annular, consequently at the in-process of air current upward movement, the annular duct that partial air current set up through side air outlet outside is discharged to the outside, and be provided with the acoustic celotex board in annular duct's inside, can further reduce exhaust fan mechanism at the noise that the during operation produced, and the air current of shell reduces the impact to the flabellum after weakening, reduce the vibration that the pivot of flabellum and lower extreme produced, thereby reduce the noise production of cooling fan mechanism, and pass through the shock attenuation pole, can reduce the vibration of pivot, compare in current device, moreover, the steam generator is simple in structure, long service life, the input cost is lower simultaneously.

Drawings

Fig. 1 is a schematic diagram of a cooling tower and cooling fans of a multistage regulating cooling fan for a cooling tower according to the present invention;

fig. 2 is a cross-sectional view of a multistage regulating cooling fan for a cooling tower according to the present invention;

fig. 3 is a perspective view of a multistage adjusting cooling fan for a cooling tower according to the present invention.

Illustration of the drawings:

1. a cooling tower main body; 2. a cooling fan mechanism; 201. a housing; 202. a side air outlet; 203. filtering with a screen; 204. an annular air duct; 3. a shock-absorbing lever; 4. a rotating shaft; 5. a fan blade; 6. an acoustical panel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a multi-stage regulation cooling fan for a cooling tower comprises a cooling tower main body 1, wherein a plurality of groups of cooling fan mechanisms 2 are arranged at the upper end of the cooling tower main body 1;

the outer diameter of a shell 201 of the cooling fan mechanism 2 is gradually reduced from bottom to top, a side air outlet 202 is formed in the shell 201, a filter screen 203 for reducing the flow speed is arranged in the side air outlet 202, a support rod can be arranged between the filter screens 203 and used for supporting the upper half portion of the shell 201 and the lower half portion of the shell 201, the filter screens 203 can relieve passing air flow, the air flow passes through the filter screens more evenly, and an annular air duct 204 is arranged outside the side air outlet 202;

the inside of shell 201 is provided with along the inside radial shock attenuation pole 3 that sets up of shell 201, shock attenuation pole 3 is provided with the multiunit, the center of shock attenuation pole 3 is connected with pivot 4 through the bearing, the upper end fixedly connected with flabellum 5 of pivot 4, the lower extreme of pivot 4 is connected with the motor, the motor can drive pivot 4 and carry out multistage rotation regulation to it can carry out multistage regulation to drive flabellum 5.

Referring to fig. 2, according to the above technical solution, the fan blade 5 inside the cooling fan mechanism 2 drives the air flow and the water vapor inside the cooling tower main body 1 below to be discharged upward, and since the outer diameter of the casing 201 of the cooling fan mechanism 2 is gradually reduced from bottom to top, the side air outlet 202 is arranged inside the casing 201, and the side air outlet 202 is annular, in the process of upward movement of the air flow, part of the air flow is discharged to the outside through the annular air duct 202 arranged outside the side air outlet 202, and the sound insulation plate 6 is arranged inside the annular air duct 202, which can further reduce noise generated when the exhaust fan mechanism 2 is in operation, and the impact of the air flow of the casing 201 on the fan blade 5 after being weakened reduces, so as to reduce vibration generated by the fan blade 5 and the rotating shaft 4 at the lower end, thereby reducing noise generated by the cooling fan mechanism 2, and vibration of the rotating shaft 4 can be reduced by the shock absorption rod 3.

Further, the sound insulation board 6 is provided on the inner walls of the casing 201 and the annular air duct 204, and the sound insulation board 6 can effectively reduce the noise generated when the cooling fan mechanism 2 operates from propagating to the outside.

Further, the side air outlet 202 is an annular air outlet, and the angle between the cross section of the side air outlet 202 and the inner wall of the annular air duct 204 is an acute angle, so as to reduce direct impact with the annular air duct 204 when the air is discharged from the side air outlet 202, thereby reducing noise.

Further, the acute angle ranges from 15 to 30 °.

Further, the damping rods 3 are provided with at least two groups, and through holes in the two groups of damping rods 3 are in the same straight line with the central axis of the rotating shaft 4, so that the shaking of the rotating shaft 4 is reduced, and the noise is reduced.

Further, an annular air duct 204 is disposed near the outlet of the housing 201.

Further, the cooling fan mechanisms 2 are provided with at least two groups and are uniformly distributed at the top end of the cooling tower main body 1.

Further, the annular air duct 204 is fixedly connected to the outside of the housing 201 through bolts, and the annular air duct 204 is detachable, so that the filter screen 203 can be cleaned more conveniently after detachment.

Furthermore, the outer surfaces of the shock absorption rod 3, the rotating shaft 4 and the fan blade 5 are coated with anti-corrosion coatings, so that the service lives of the shock absorption rod 3, the rotating shaft 4 and the fan blade 5 are prolonged.

Further, the inclination angle of the annular air duct 204 is the same as that of the housing 201.

The working principle is as follows: when the device is used, the fan blades 5 inside the cooling fan mechanism 2 drive the air flow and water vapor inside the cooling tower main body 1 below to be discharged upwards, the outer diameter of the shell 201 of the cooling fan mechanism 2 is gradually reduced from bottom to top, the side air outlet 202 is arranged inside the shell 201, and the side air outlet 202 is annular, so that in the process of upward movement of the air flow, part of the air flow is discharged to the outside through the annular air duct 202 arranged outside the side air outlet 202, the sound insulation plate 6 is arranged inside the annular air duct 202, the noise generated when the exhaust fan mechanism 2 works can be further reduced, the impact of the air flow of the shell 201 on the fan blades 5 is reduced after being weakened, the vibration generated by the fan blades 5 and the rotating shaft 4 at the lower end is reduced, the noise generation of the cooling fan mechanism 2 is reduced, and the vibration of the rotating shaft 4 can be reduced through the shock absorption rod 3.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A multistage adjustable cooling fan for a cooling tower, comprising a cooling tower main body (1), characterized in that: a plurality of groups of cooling fan mechanisms (2) are arranged at the upper end of the cooling tower main body (1);

the outer diameter of a shell (201) of the cooling fan mechanism (2) is gradually reduced from bottom to top, a side air outlet (202) is formed in the shell (201), a filter screen (203) for reducing the flow speed is arranged in the side air outlet (202), and an annular air duct (204) is arranged outside the side air outlet (202);

the inside of shell (201) is provided with along shock-absorbing rod (3) of the inside radial setting of shell (201), shock-absorbing rod (3) are provided with the multiunit, the center of shock-absorbing rod (3) is connected with pivot (4) through the bearing, the upper end fixedly connected with flabellum (5) of pivot (4), the lower extreme of pivot (4) is connected with the motor.

2. The multi-stage modulating cooling fan for a cooling tower of claim 1 wherein: and sound insulation plates (6) are arranged on the inner walls of the shell (201) and the annular air duct (204).

3. The multi-stage modulating cooling fan for a cooling tower of claim 1 wherein: the side air outlet (202) is an annular air outlet, and the angle between the cross section of the side air outlet (202) and the inner wall of the annular air duct (204) is an acute angle.

4. A multi-stage modulating cooling fan for a cooling tower as claimed in claim 3 wherein: the acute angle ranges from 15 to 30 degrees.

5. The multi-stage modulating cooling fan for a cooling tower of claim 1 wherein: the damping rods (3) are at least two groups, and the through holes in the damping rods (3) and the central axis of the rotating shaft (4) are in the same straight line.

6. The multi-stage conditioning cooling fan for a cooling tower of claim 1, wherein: the annular air duct (204) is arranged close to the outlet of the shell (201).

7. The multi-stage modulating cooling fan for a cooling tower of claim 1 wherein: the cooling fan mechanisms (2) are at least two groups and are uniformly distributed on the top end of the cooling tower main body (1).

8. The multi-stage conditioning cooling fan for a cooling tower of claim 1, wherein: the annular air duct (204) is fixedly connected to the outer part of the shell (201) through bolts.

9. The multi-stage conditioning cooling fan for a cooling tower of claim 1, wherein: the outer surfaces of the shock absorption rod (3), the rotating shaft (4) and the fan blades (5) are coated with anti-corrosion coatings.

10. The multi-stage conditioning cooling fan for a cooling tower of claim 1, wherein: the inclination angle of the annular air duct (204) is the same as that of the shell (201).