CN217421558U - Noise-reducing centrifugal fan device - Google Patents

Abstract

The utility model provides a centrifugal fan device of making an uproar falls, including basin, centrifugal fan and motor, centrifugal fan sets up in the basin, the air-supply line of centrifugal fan passes a lateral wall of the basin; the motor is in transmission connection with the centrifugal fan. The utility model provides a centrifugal fan device of making an uproar falls is through setting up centrifugal fan in the basin, when centrifugal fan during operation, to water injection in the basin for centrifugal fan at least part is flooded, and accessible liquid medium water conduction comes from centrifugal fan's vibration, subducts the vibration that centrifugal fan conducts for the air on every side by a wide margin, thereby plays the purpose that reduces centrifugal fan running noise, has improved the operation environment in workshop to a certain extent.

Description

Noise-reducing centrifugal fan device

Technical Field

The utility model relates to a grain processing machinery field especially relates to a centrifugal fan device of making an uproar falls.

Background

In grain or food processing factory, for guaranteeing that operating environment does not produce harm to operating personnel, avoid taking place conflagration or explosion, also in order to guarantee sanitation, must in time clear up the dust in the workshop, the air-blower is a necessary equipment, in with the dust rapid input dust collecting equipment in the workshop through the air-blower, keeps the content of dust in the workshop at safer level.

The blower usually adopts a centrifugal fan, and air with dust in a workshop is quickly input into the dust removal equipment through the centrifugal fan. However, the centrifugal fan generates a great deal of noise during operation, which noise is caused by, on the one hand, vibrations of the machine during operation and, on the other hand, by frictional vibrations of the air flow passing through the inner chamber of the centrifugal fan. In a workshop, corresponding measures need to be taken, the noise generated by the centrifugal fan is reduced, and the working environment of the workshop is improved.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a noise-reducing centrifugal fan device in response to at least one of the above-mentioned problems.

The utility model provides a centrifugal fan device of making an uproar falls, including basin, centrifugal fan and motor, centrifugal fan sets up in the basin, the air-supply line of centrifugal fan passes a lateral wall of the basin; the motor is in transmission connection with the centrifugal fan.

In one embodiment, the air outlet of the centrifugal fan extends out of the water tank.

In one embodiment, a first through hole is formed in the side wall of the water tank, and the air inlet pipe is arranged in the first through hole.

In one embodiment, a rubber sealing sleeve is arranged between the air inlet pipe and the first through hole.

In one embodiment, a second through hole is formed in the other side wall of the water tank, the motor is connected to the outer side wall of the water tank, and a transmission shaft of the motor is in transmission connection with the centrifugal fan through the second through hole.

In one embodiment, a second through hole is formed in the other side wall of the water tank, the rotating shaft of the centrifugal fan is suspended outside the water tank through the second through hole, and the motor is connected with the rotating shaft of the centrifugal fan through a transmission belt.

In one embodiment, the water tank further comprises a controller and a water pump, the water tank further comprises a liquid level sensing device, and the controller is electrically connected with the water pump and the liquid level sensing device respectively; the water pump can inject water into the water tank.

In one embodiment, a plurality of buoys are arranged in the water tank.

The embodiment of the utility model provides an in the technical scheme who provides bring following beneficial technological effect:

the utility model provides a centrifugal fan device of making an uproar falls is through setting up centrifugal fan in the basin, when centrifugal fan during operation, to water injection in the basin for centrifugal fan is at least partly submerged, and accessible liquid medium water conduction comes from centrifugal fan's vibration, subducts the vibration that centrifugal fan conducts for the air around by a wide margin, thereby plays the purpose that reduces centrifugal fan running noise, has improved the operation environment in workshop to a certain extent.

Additional aspects and advantages of the present invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic perspective view of a centrifugal fan device for reducing noise according to an embodiment of the present invention;

fig. 2 is a top view of a noise-reducing centrifugal fan apparatus according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of the present invention in fig. 2;

fig. 4 is a schematic perspective view of a centrifugal fan device for noise reduction according to an embodiment of the present invention;

fig. 5 is a top view of a centrifugal fan device for reducing noise according to an embodiment of the present invention.

Description of reference numerals:

100-water tank, 200-centrifugal fan, 300-motor;

110-a first through hole, 210-an air inlet pipe, 220-an air outlet and 310-a transmission belt.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Possible embodiments of the invention are given in the figures. The invention may, however, be embodied in many different forms and is not limited to the embodiments described herein by way of example only and with reference to the accompanying drawings. The embodiments described herein with reference to the drawings are illustrative for the purpose of providing a more thorough understanding of the present disclosure and are not to be construed as limiting the present disclosure. Furthermore, if a detailed description of known technologies is not necessary for illustrating the features of the present invention, such technical details may be omitted.

It will be understood by those within the relevant art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that, as used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

The technical solution of the present invention and how to solve the above technical problems will be described in detail with specific embodiments.

The utility model provides a centrifugal fan device of making an uproar falls, as shown in fig. 1-3, including basin 100, centrifugal fan 200 and motor 300, centrifugal fan 200 sets up in basin 100, and the air-supply line 210 of centrifugal fan 200 passes a lateral wall of basin 100; the motor 300 is drivingly connected to the centrifugal fan 200. When the noise-reduction centrifugal fan device provided by the application works, a certain amount of water needs to be injected into the water tank 100, and clear water can be directly used to at least partially immerse the centrifugal fan 200 into the water. Of course, it is necessary to prevent water from entering the centrifugal fan 200 and the motor 300, and therefore, the housing of the centrifugal fan 200 should be a sealed housing, and the motor 300 should be as far from the water surface as possible. Centrifugal fan 200 is at the during operation, need not to appear high-frequency vibration, and in the middle of originally directly transmitting the air, set up centrifugal fan 200 in aqueous earlier, can transmit these vibrations at least part to aquatic, form the water wave in aqueous, absorb vibration energy by water, can reduce directly through the vibration energy of air propagation, the noise abatement production.

As for the apparatus itself, the water tank 100 may be made of steel or engineering plastic material, and the centrifugal fan 200 may be accommodated in the water tank 100 having a general rectangular parallelepiped shape. The centrifugal fan 200 may be directly selected from existing products, the power of the motor 300 is matched with the centrifugal fan 200, and the motor 300 can transmit power to the centrifugal fan 200 to operate.

The utility model provides a centrifugal fan device of making an uproar falls is through setting up centrifugal fan 200 in basin 100, when centrifugal fan 200 during operation, to water injection in the basin 100 for centrifugal fan 200 is at least partly submerged, and accessible liquid medium water conduction comes from centrifugal fan 200's vibration, subducts centrifugal fan 200 conduction by a wide margin and gives the vibration of surrounding air, thereby plays the purpose that reduces centrifugal fan 200 running noise, has improved the operational environment in workshop to a certain extent.

Optionally, in an embodiment of the present invention, as shown in fig. 1 and 3, the air outlet 220 of the centrifugal fan 200 extends out of the water tank 100. The air outlet 220 of the centrifugal fan 200 is directly higher than the top end face of the highest position of the water tank 100, so that water is prevented from entering the air outlet 220.

Optionally, in an implementation manner of the present invention, as shown in fig. 1, a first through hole 110 is disposed on a side wall of the water tank 100, and the air inlet pipe 210 is disposed in the first through hole 110. Since the centrifugal fan 200 has high-frequency vibration during operation, the centrifugal fan 200 is connected to the air inlet pipe 210 through the first through hole 110, so that the centrifugal fan 200 is prevented from being integrated with the water tank 100 to directly receive the vibration, and the vibration of the centrifugal fan 200 can be transmitted as little as possible. Optionally, a rubber sealing sleeve (not shown) is disposed between the air inlet pipe 210 and the first through hole 110. On the one hand, the rubber sealing sleeve can prevent the water tank 100 from seeping, and on the other hand, the rubber sealing sleeve can ensure that the vibration of the centrifugal fan 200 is transmitted to the water tank 100 less.

Alternatively, in another embodiment of the present invention, as shown in fig. 4, a second through hole (not shown) is formed on another side wall of the water tank 100, the motor 300 is connected to the outer side wall of the water tank 100, and the transmission shaft of the motor 300 is in transmission connection with the centrifugal fan 200 through the second through hole. The second through-hole is provided opposite to the side wall where the first through-hole 110 is located.

Alternatively, in another embodiment of the present invention, as shown in fig. 5, a second through hole is provided on the other side wall of the water tank 100, the rotating shaft of the centrifugal fan 200 is suspended outside the water tank 100 through the second through hole, and the motor 300 is connected to the rotating shaft of the centrifugal fan 200 through a driving belt 310. Or a drive chain is used to drivingly connect the centrifuge to the motor 300.

The power of the motor 300 disposed outside the water tank 100 is transmitted to the centrifugal fan 200 through the second through hole, so that more water is injected into the water tank 100, and a larger portion of the centrifugal fan 200 is submerged into the water, thereby absorbing more vibration energy and further reducing the noise level.

Optionally, in an embodiment of the present invention, the noise-reduced centrifugal fan device further includes a controller (not shown in the figure) and a water pump (not shown in the figure), and the water tank 100 further includes a liquid level sensing device (not shown in the figure), and the controller is electrically connected to the water pump and the liquid level sensing device respectively; the water pump may inject water into the water tank 100. Optionally, a plurality of buoys are provided within the sink 100. The controller has a Processor therein, and from a hardware perspective, the Processor may be a CPU (Central Processing Unit), a general-purpose Processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array) or other Programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. A processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

Through controller, liquid level sensing device and water pump, can add water to basin 100 automatically, ensure to have enough water in the basin 100. The liquid level sensing device can be a liquid sensor, and can also be a combined device linked with the floating ball, and the liquid level sensing device is common and is not described in detail. And a plurality of buoys are arranged in the water tank 100, so that the efficiency of energy absorption of water in the water tank 100 can be further improved, and the water surface can be prevented from fluctuating and overflowing.

It will be understood by those skilled in the art that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 application can be understood in a specific case by those of ordinary skill in the art.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.

Claims (8)

1. A noise-reducing centrifugal fan device is characterized by comprising a water tank, a centrifugal fan and a motor, wherein the centrifugal fan is arranged in the water tank, and an air inlet pipe of the centrifugal fan penetrates through one side wall of the water tank; the motor is in transmission connection with the centrifugal fan.

2. The noise-reducing centrifugal fan device according to claim 1, wherein an air outlet of the centrifugal fan protrudes out of the water tank.

3. The noise-reducing centrifugal fan device according to claim 1, wherein a first through hole is formed in a side wall of the water tank, and the air inlet pipe is disposed in the first through hole.

4. The noise-reducing centrifugal fan device according to claim 3, wherein a rubber sealing sleeve is disposed between the air inlet pipe and the first through hole.

5. The noise-reducing centrifugal fan device according to claim 1, wherein a second through hole is formed in another side wall of the water tank, the motor is connected to an outer side wall of the water tank, and a transmission shaft of the motor is in transmission connection with the centrifugal fan through the second through hole.

6. The noise-reduced centrifugal fan device according to claim 1, wherein a second through hole is formed in another side wall of the water tank, a rotation shaft of the centrifugal fan is suspended outside the water tank through the second through hole, and the motor is connected to the rotation shaft of the centrifugal fan through a transmission belt.

7. The noise-reducing centrifugal fan device according to claim 1, further comprising a controller and a water pump, wherein the water tank further comprises a liquid level sensing device, and the controller is electrically connected to the water pump and the liquid level sensing device, respectively; the water pump can inject water into the water tank.

8. The noise-reducing centrifugal fan device according to claim 1, wherein a plurality of buoys are provided in the water tank.

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