CN216742192U - Low noise fan device of heat exchanger - Google Patents

Abstract

The utility model provides a low-noise fan device of a heat exchanger, which comprises the heat exchanger and a fan assembly, wherein an air inlet duct of the fan assembly is communicated with an air outlet of the heat exchanger; the fan assembly comprises a cover body, a fan, an air pipe and a rectification part, wherein the fan and the air pipe are arranged in the cover body, the air pipe is connected with an air outlet of the fan, and the rectification part is arranged in the air pipe; the rectification part comprises a plurality of supporting beams and a plurality of ribbons arranged on the supporting beams, and the supporting beams are uniformly arranged on the cross section of the air pipe at intervals. The low-noise fan device of the heat exchanger provided by the utility model has the advantages that the rectification part is arranged in the air pipe with larger air quantity and rapid air flow, and the air flowing out of the fan is combed through the rectification part with the plurality of ribbons, so that the flow rate of the air in unit time is reduced while the flow rate of the air is not reduced, the impact of high-speed air on the air pipe or a fan assembly is reduced to a certain extent, the impact on external static air is also reduced, and the generated noise is reduced.

Description

Low noise fan device of heat exchanger

Technical Field

The utility model relates to the field of heat exchangers, in particular to a low-noise fan device of a heat exchanger.

Background

There are many kinds of heat exchangers, one of which is a gas-liquid heat exchanger, in which hot liquid is transferred by cold air and is discharged or otherwise used after being changed into hot air, and the liquid is reused again. The gas-liquid heat exchanger is applied to ships and buildings, can provide cooling water for mechanical equipment or electrical equipment in the buildings, and can also provide heat for rooms.

However, such gas-liquid heat exchangers often have high noise, and the fan starts to generate noise, and the air current flows fast to generate noise, and the air current strikes the shell of the device to generate noise. Therefore, such heat exchangers need to be provided with sound insulation measures for better application in places where people are resident. However, as the standard of living increases, heat exchangers with lower noise characteristics are becoming more popular.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a low noise blower device for a heat exchanger, which addresses at least one of the above-mentioned problems.

The utility model provides a low-noise fan device of a heat exchanger, which comprises the heat exchanger and a fan assembly, wherein an air inlet duct of the fan assembly is communicated with an air outlet of the heat exchanger; the fan assembly comprises a cover body, a fan, an air pipe and a rectifying part, wherein the fan and the air pipe are both arranged in the cover body, the air pipe is connected with an air outlet of the fan, and the rectifying part is arranged in the air pipe;

the rectification portion comprises a plurality of supporting beams and a plurality of ribbons arranged on the supporting beams, and the supporting beams are arranged on the cross section of the air pipe at uniform intervals.

In one embodiment, the air duct is a cylindrical air duct.

In one embodiment, the support beams are parallel to each other.

In one embodiment, the support beams are radially disposed within the duct.

In one embodiment, the support beams are arranged in six rows, and the included angle between two adjacent support beams is 60 degrees.

In one embodiment, the streamers are elongate nylon fiber bundles.

In one embodiment, the outer edge of the air pipe is further provided with a protective cover.

The technical scheme provided by the embodiment of the utility model has the following beneficial technical effects:

the low-noise fan device of the heat exchanger provided by the utility model has the advantages that the rectification part is arranged in the air pipe with larger air quantity and rapid air flow, and the air flowing out of the fan is combed through the rectification part with the plurality of ribbons, so that the flow rate of the low-noise fan device is reduced while the flow rate of the low-noise fan device per unit time is not reduced, the impact of high-speed air on the air pipe or a fan component is reduced to a certain extent, the impact on external static air is also reduced, the generated noise is reduced, and the noise generated by a part of the heat exchanger is fundamentally reduced.

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 utility model.

Drawings

Fig. 1 is a schematic perspective view of a low noise blower device of a heat exchanger according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a fan assembly according to an embodiment of the present invention.

Description of reference numerals:

100-heat exchanger, 200-fan assembly;

210-a cover body, 220-a fan, 230-an air pipe and 240-a rectifying part;

241-support beam, 242-streamer.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Possible embodiments of the utility model are given in the figures. The utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein by the accompanying drawings. The embodiments described by way of 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 invention. 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 skilled in 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 is to be understood that the term "and/or" as used herein is intended to include all or any 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 examples.

The low-noise fan 220 device of the heat exchanger provided by the application of the utility model, as shown in fig. 1, comprises a heat exchanger 100 and a fan assembly 200, wherein an air inlet duct of the fan assembly 200 is communicated with an air outlet of the heat exchanger 100; the fan assembly 200 comprises a cover 210, a fan 220, an air pipe 230 and a rectification part 240, wherein the fan 220 and the air pipe 230 are both arranged in the cover 210, the air pipe 230 is connected with an air outlet of the fan 220, and the rectification part 240 is arranged in the air pipe 230; the fairing 240 includes a plurality of support beams 241 and a plurality of streamers 242 disposed on the support beams 241, the support beams 241 being evenly spaced across the cross-section of the duct 230.

The heat exchanger 100 of course also comprises pipes for the flow of the liquid medium, as well as fins or the like for evacuating heat from the liquid medium, and the fan assembly 200 naturally also comprises motors, blades, connecting elements and the like. During operation, hot liquid in the heat exchanger 100 enters into the cooling assembly, and the fan 220 sucks cold air from the outside into the fan assembly 200 through the cooling assembly, and finally the cold air is discharged through the air pipe 230, so that the liquid is cooled rapidly through the cold air, and heat exchange is realized.

Since the flow velocity of the air discharged from the air duct 230 is often very fast, the air having a relatively low flow velocity with respect to the outside air may generate impact to the outside air, thereby generating relatively large noise. And the impact on the wall of the duct 230 is also large, and noise is also generated. The flow rectifying part 240 is arranged in the air duct 230, so that the supporting beam 241 on the flow rectifying part 240 and the plurality of ribbons 242 on the supporting beam 241 generate certain blocking and dredging effects on the air flow, and the noise can be reduced under the condition of not changing the air flow. The detection shows that the decibels of the generated sound are reduced by 13 to 16% with respect to the air duct 230 not using the rectifying unit 240.

The low-noise fan 220 device of the heat exchanger provided by the utility model has the advantages that the rectifying part 240 is arranged in the air pipe 230 with larger air quantity and rapid air flow, and the air flowing out of the fan 220 is combed through the rectifying part 240 with the plurality of ribbons 242, so that the flow rate of the air is reduced while the flow rate of the air per unit time is not reduced, the impact of high-speed air on the air pipe 230 or the fan assembly 200 is reduced to a certain extent, the impact on external static air is also reduced, the generated noise is reduced, and part of the noise generated by the heat exchanger 100 is reduced fundamentally.

Alternatively, the specific shape of the air duct 230 may be a cylindrical air duct 230. In practice, square tubes may be used, but more cylindrical tubes 230 are used.

Alternatively, in one embodiment of the present invention, the support beams 241 are parallel to each other. That is, the support beams 241 are different in length, and the support beam 241 near the center of the cross-sectional shape of the air duct 230 is longer, which is equivalent to dividing the cross-section of the air duct 230 into multiple layers.

Alternatively, in another embodiment of the present application, as shown in fig. 2, support beams 241 are radially disposed within the air duct 230. The length of each support beam 241 is generally the same, especially when duct 230 is a cylindrical duct 230, extending from the geometric center to the peripheral edges of the cross-sectional shape of duct 230. Alternatively, six support beams 241 are provided, and the included angle between two adjacent support beams 241 is 60 °. Support beams 241 evenly divide the cross-sectional shape of duct 230 into six fan-shaped regions.

Optionally, in a specific implementation manner of the present application, the streamers 242 are long nylon fiber bundles. The ribbon 242 is made of soft material, so that noise cannot be generated in the airflow due to vibration, the nylon fiber bundle can fully meet the requirements, and the ribbon has high strength and long service life. In addition, cotton ropes may also be used.

Optionally, in another embodiment of the present invention, a protective cover is further disposed on an outer edge of the air duct 230. In order to prevent foreign matters from entering the blower assembly 200 from the outside of the air duct 230 through the air duct 230, equipment damage or personnel damage is avoided.

Those of skill in the art will appreciate that the various operations, methods, steps in the processes, acts, or solutions discussed in this application can be interchanged, modified, combined, or eliminated. Further, other steps, measures, or schemes in various operations, methods, or flows that have been discussed in this application can be alternated, altered, rearranged, broken down, combined, or deleted. Further, steps, measures, schemes in the prior art having various operations, methods, procedures disclosed in the present application may also be alternated, modified, rearranged, decomposed, combined, or deleted.

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 implicitly indicating the 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 (7)

1. A low-noise fan device of a heat exchanger is characterized by comprising the heat exchanger and a fan assembly, wherein an air inlet duct of the fan assembly is communicated with an air outlet of the heat exchanger; the fan assembly comprises a cover body, a fan, an air pipe and a rectifying part, wherein the fan and the air pipe are both arranged in the cover body, the air pipe is connected with an air outlet of the fan, and the rectifying part is arranged in the air pipe;

the rectification portion comprises a plurality of supporting beams and a plurality of ribbons arranged on the supporting beams, and the supporting beams are arranged on the cross section of the air pipe at uniform intervals.

2. The low noise blower apparatus of the heat exchanger according to claim 1, wherein the air duct is a cylindrical air duct.

3. The low noise fan apparatus of a heat exchanger according to claim 1, wherein the support beams are parallel to each other.

4. The low noise fan apparatus of a heat exchanger according to claim 1, wherein the support beams are radially disposed in the air duct.

5. The low noise fan apparatus of heat exchanger according to claim 4, wherein the number of the support beams is six, and an angle between two adjacent support beams is 60 °.

6. The low noise fan assembly of heat exchanger of claim 1, wherein said flag is an elongated nylon fiber tow.

7. The low noise blower apparatus of heat exchanger according to claim 1, wherein the outer edge of the air duct is further provided with a protective cover.

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