CN219827248U - Fan housing, air-cooled compressor device and kit - Google Patents

Fan housing, air-cooled compressor device and kit Download PDF

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Publication number
CN219827248U
CN219827248U CN202320511763.7U CN202320511763U CN219827248U CN 219827248 U CN219827248 U CN 219827248U CN 202320511763 U CN202320511763 U CN 202320511763U CN 219827248 U CN219827248 U CN 219827248U
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CN
China
Prior art keywords
fan
housing
fan housing
plane
cooling air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202320511763.7U
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Chinese (zh)
Inventor
D·瓜迪亚
F·马泰斯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atlas Copco Airpower NV
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Atlas Copco Airpower NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from BE20225453A external-priority patent/BE1030360B1/en
Application filed by Atlas Copco Airpower NV filed Critical Atlas Copco Airpower NV
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Publication of CN219827248U publication Critical patent/CN219827248U/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F04B39/066—Cooling by ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/664—Sound attenuation by means of sound absorbing material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Compressor (AREA)

Abstract

The utility model relates to a fan housing (5) arranged to accommodate a radial flow fan (11) for drawing cooling air from an air-cooled compressor device, the fan housing comprising: a fan inlet (6) connectable to a cooler (4) of the air-cooled compressor device; and a cooling air outlet (7) located in a first plane and a second plane of the housing (5), respectively, the first plane being parallel to and opposite the second plane, wherein, when the radial fan is housed at the fan inlet, the axis of rotation of the radial fan extends at an angle between 0 ° and 45 ° with respect to a direction perpendicular to the first plane, and the edges of the cooling air outlet do not intersect the geometrical extension of the housing along the axis of rotation of the radial fan to the second plane. The utility model also relates to an air-cooled compressor apparatus comprising a fan housing and to a kit of parts. The kit includes a fan housing, a radial fan, a cooler, and a compressor.

Description

Fan housing, air-cooled compressor device and kit
Technical Field
The utility model relates to a fan housing, an air-cooled compressor device and a kit of parts.
More specifically, the utility model will be used in an air-cooled compressor apparatus provided with a housing comprising at least one air-cooled cooler having a radial fan.
Background
Conventionally, such fans are provided with a fan housing having a cooling air inlet and an opposite cooling air outlet.
In order to optimize the intake of cooling air, the cooling air inlet coincides with the rotation axis of the fan.
The housing is closely matched to the physical dimensions of the fan in order to obtain a unit that is as compact as possible.
This results in the cooling air having to be diverted in order to leave the housing through the cooling air outlet.
Such disadvantages are pressure drop, uneven exhaust flow and noise hazard.
Disclosure of Invention
The object of the present utility model is to provide a solution to the above and other drawbacks, to avoid the creation of pressure drops, uneven exhaust flow and the creation of noise hazards.
To this end, according to a first aspect, the utility model relates to a fan housing arranged to house a radial flow fan for sucking cooling air from an air cooled compressor apparatus, the fan housing comprising: a fan inlet connectable to a cooler of the compressor apparatus; and a cooling air outlet, the fan inlet and the cooling air outlet being located in a first plane and a second plane of the fan housing, respectively, the first plane being parallel to and opposite the second plane, wherein, when the radial fan is accommodated at the fan inlet, the rotational axis of the radial fan extends at an angle between 0 ° and 45 ° with respect to a direction perpendicular to the first plane, and the edge of the cooling air outlet does not intersect the geometrical extension of the housing along the rotational axis of the radial fan to the second plane.
The radial fan is a fan that sucks air in parallel to an axis and leaves the air perpendicularly to the axis. In other words, the radial fan draws air axially into its impeller center, then pushes it through the rotating blades, and throws it radially outward. Radial fans are also understood to mean centrifugal fans known in the art. Radial or centrifugal fans may also comprise a casing or housing as known in the art, and thus differ from the fan housing according to the present utility model.
Here, the direction perpendicular to the first plane means a direction perpendicular to the ground. The ground is the surface on which the compressor device rests or is mounted.
Here, the geometric extension of the housing of the fan in the axial direction of the rotation axis refers to a virtual extension or geometric projection of the housing of the fan, which coincides with the rotation axis, towards the ceiling of the fan housing. The plane of intersection of the virtual extension with the top plate does not overlap the cooling air outlet, or in other words, the cooling air outlet does not fall into the intersection, nor even falls locally into the intersection. The top plate also means the side on which the cooling air outlet is located. Thus, in a normal arrangement, when the compressor device (of which the fan housing forms a part) is located on the ground, this side is located at the top of the housing.
The advantage of the utility model is that the pressure drop between the cooling air outlet and the fan is reduced.
Thus, the fan consumes less energy, and alternatively it can even select a fan with a smaller capacity.
Another advantage is that the exhaust flow at the cooling air outlet is uniform or almost uniform, since the entire surface of the cooling air outlet is used.
A further advantage is that the fan is better protected against rain, snow, dust etc. since the fan is not located directly below the cooling air outlet.
Preferably, the wall of the fan housing, which is connected to the cooling air outlet and is not located at the top plate of said housing of the compressor device, extends at an obtuse angle to the vertical, which is a direction perpendicular to the ground and intersects the centre point of the fan inlet.
This has the advantage that the air flow is directed in the direction of the cooling air outlet. This will also reduce the pressure drop.
In a preferred embodiment, the fan housing is provided with sound absorbing material inside it.
This has the advantage that noise hazards are kept to a minimum.
The sound absorbing material is preferably made of polyurethane foam, melamine foam, viscoelastic foam, asbestos, glass wool or sound insulation cloth.
These materials have good sound absorption properties and are suitable for lining the interior of the fan housing.
Preferably, a plurality of baffles or deflectors are arranged in the airflow path between the fan and the cooling air outlet.
These baffles or deflectors have the advantage of even further reducing the noise hazard.
These baffles or deflectors can be reflective or absorptive dampers, in which case the baffles or deflectors are also covered with or made of sound absorbing material.
The fan housing is preferably provided with a removable wall.
The removable wall can be used as a service hatch for inspection, cleaning or replacement of fans or sound absorbing material.
In a preferred embodiment, the geometric extension of the axis of rotation of the fan when accommodating the fan always passes through the fan inlet, even more preferably through the centre point of the fan inlet.
This ensures that the fan inlet and the suction side of the fan are always properly aligned.
According to a second aspect of the present utility model, an air-cooled compressor apparatus is disclosed, comprising a fan housing according to the first aspect.
According to an embodiment, the compressor device may further comprise a radial fan accommodated in the fan housing.
According to the utility model, a kit of parts is disclosed, wherein the kit of parts comprises the aforementioned fan housing, a radial fan adapted to be accommodated by the fan housing, a compressor and a cooler adapted to be connected to the fan housing.
The technical scheme of the utility model can avoid the generation of pressure drop, uneven exhaust flow and noise hazard.
Drawings
For a better description of the features of the utility model, preferred embodiments of an air-cooled compressor device according to the utility model will be described below, without any limiting features, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 schematically illustrates an air-cooled compressor apparatus having an air-cooled chiller and a conventional fan housing;
FIG. 2 illustrates the air cooled chiller of FIG. 1 with a fan housing according to the present utility model;
FIG. 3 illustrates the air cooled cooler of FIG. 2 with a partition in the fan housing;
FIG. 4 illustrates the air cooled cooler of FIG. 2 with a baffle in the fan housing;
fig. 5 shows a top view of the air cooler and the fan housing, which top view is indicated by arrow F5 in fig. 2.
Detailed Description
Fig. 1 shows a conventional air-cooled compressor installation 1 with a compressor housing 2 in which two compressor elements 3A and 3B and an air-cooled cooler 4 are accommodated.
The compressor elements 3A and 3B form a low pressure stage 3A and a high pressure stage 3B, respectively. However, the number of compressor elements 3 is not important for the utility model, and the utility model can also be applied to compressor devices 1 having only one compressor element or having more than two compressor elements.
The compressor elements 3A and 3B can be of any type, for example reciprocating compressors, screw compressors, turbo compressors, etc., and can be oil-free and oil-injected.
The compressor elements 3A and 3B are cooled using an air-cooled cooler 4. The air cooler 4 is connected to a fan housing 5 having a fan inlet 6 and a cooling air outlet 7.
The fan inlet 6 is connected to the cooler 4 and the cooling air outlet 7 is located at the top plate 8 of the compressor device 1.
The cooling air flow 9 is sucked into the cooler 4 by means of a fan 11 through a cooling air inlet 10 of the compressor device 1. In this example, the fan 11 is a radial fan 11.
In this example, the cooler 4 includes three partial coolers 12A, 12B, and 12C, and the medium 13A, 13B, and 13C to be cooled flows in these three partial coolers 12A, 12B, and 12C.
In the example shown, the three partial coolers 12A, 12B and 12C are all cooled by the radial fans 11. In this example, the first partial cooler 12A is an intercooler 12A, the second partial cooler 12B is an oil cooler 12B, and the third partial cooler 12C is an aftercooler 12C.
In this example, the cooling mediums 13A and 13C in the first and third partial coolers 12A and 12C (the intercooler 12A and the aftercooler 12C) are compressed gas originating from the compressor elements 3A and 3B, respectively, and the cooling medium 13B in the second partial cooler 12B is oil.
The cooling air flow 9 flows through the partial coolers 12A, 12B and 12C, after which it enters the fan inlet 6 of the fan housing 5.
Subsequently, the cooling air flow 9 undergoes an increase in speed and a change in direction in the radial fan 11. The air flow 9 leaves the radial fan 11 along the periphery, after which the air flow 9 must again undergo a change of direction in order to leave the top plate 8 of the compressor device 1 through the cooling air outlet 7.
As a result, a large part of the cooling air outlet 7 is blocked by the radial fan 11. This has an adverse effect on the power of the fan 11. Moreover, the cooling air outlet 7 must be made larger in order to achieve an efficient discharge of the cooling air flow 9.
Fig. 2 shows the same air-cooled cooler 4 as fig. 1, but in this case with a fan housing 5 according to the utility model. The fan housing 5 is dimensioned such that the geometric extension of the fan 11 in the vertical direction does not intersect the cooling air outlet 7.
This means that the top of the radial fan 11 is covered or overlapped by the fan housing 5.
As a result, the edge 14 of the cooling air outlet 7 closest to the rotational axis 15 of the fan 11 is located at a greater distance d from the rotational axis 15 of the fan 11 than the radius r of the fan 11.
In this example, the angle between the rotation axis 15 of the fan 11 and the vertical is 0 °, although it is not excluded that this angle can be up to 45 °.
It should be noted here that in the embodiment shown, the rotation shaft 15 passes through the fan inlet 6.
In this example, the fan inlet 6 and the cooling air outlet 7 are arranged in opposite walls 16 of the fan housing 5.
In this case, the wall 17 of the fan housing 5, which is connected to the cooling air outlet 7 and is not located at the top plate 8 of said housing 2 of the compressor device 1, extends at an angle to the vertical in order to guide the air flow to the cooling air outlet 7.
The angle is less than 90 °.
The wall 17 will gradually deflect the cooling air flow 9 blown out by the fan 11 and guide it to the cooling air outlet 7.
In this example, the fan housing 5 is provided with sound absorbing material 18 in the form of polyurethane foam in its interior. However, it cannot be excluded that the sound absorbing material 18 is manufactured from melamine foam, viscoelastic foam, asbestos, glass wool or sound-insulating cloth.
The sound absorbing material 18 is clearly shown in fig. 2.
In fig. 3 and 4, a baffle 19 and a deflector 20 are mounted between the fan 11 and the cooling air outlet 7, respectively, which will further limit noise hazards.
The cooling air flow 9 blown by the fan 11 must be diverted around these baffles 19 or deflectors 20, which will create a sound damping effect.
Fig. 5 shows a top view of the fan housing 5 and the cooler 4, wherein it is clearly visible that the geometric extension of the fan 11 perpendicular to the plane of the drawing does not intersect the cooling air outlet 7 in any position, so that it is located at a distance d from the cooling air outlet 7.
It is clear from this figure that the entire surface of the cooling air outlet 7 now serves to discharge the air flow 9, whereby the air flow 9 through the cooling air outlet 7 is uniform or quasi-uniform.
It can also be seen from this figure that the fan 11 is well protected from weather elements and dust, since it is not located directly below the cooling air outlet 7.
Obviously, the cooler 4 and the fan housing 5 can be arranged in a number of different ways.
Although the above example uses two compressor elements 3 and three local coolers 12A, 12B and 12C, the present utility model is not limited thereto. The utility model is applicable to a compressor device 1 having one or more than two compressor elements 3, and one partial cooler 12 or more than three partial coolers 12 are also possible.
Each partial cooler 12 can also be cooled by a separate fan 11.
The utility model is in no way limited to the embodiments described by way of example and shown in the drawings, but the air-cooled compressor arrangement according to the utility model can be realized in various shapes and sizes without departing from the scope of the utility model.

Claims (11)

1. A fan housing (5) arranged to house a radial flow fan (11) for drawing cooling air from an air cooled compressor apparatus, the fan housing (5) comprising: a fan inlet (6), the fan inlet (6) being connectable to a cooler (4) of an air-cooled compressor apparatus; and a cooling air outlet (7), the fan inlet (6) and the cooling air outlet (7) being located in a first plane and a second plane of the fan housing (5), respectively, said first plane being parallel and opposite to the second plane, characterized in that, when the radial fan (11) is accommodated at the fan inlet (6), the rotation axis (15) of the radial fan (11) extends at an angle between 0 ° and 45 ° with respect to a direction perpendicular to the first plane, and that the edges of the cooling air outlet (7) do not intersect the geometrical extension of the housing along the rotation axis of the radial fan to the second plane.
2. The fan housing (5) according to claim 1, characterized in that: a wall (17) between the first plane and the second plane and connecting with the cooling air outlet (7) extends at an obtuse angle with respect to a direction perpendicular to the first plane and intersecting a centre point of the fan inlet (6) in order to guide the air flow (9) to the cooling air outlet (7).
3. Fan housing (5) according to claim 1 or 2, characterized in that: the fan housing (5) is provided with a sound absorbing material (18) inside thereof.
4. A fan housing (5) according to claim 3, characterized in that: the sound absorbing material (18) is made of polyurethane foam, melamine foam, viscoelastic foam, asbestos, glass wool or sound insulation cloth.
5. The fan housing (5) according to claim 2, characterized in that: a plurality of baffles (19) and/or deflectors (20) are arranged in the flow path of the air flow (9) between the radial fan (11) and the cooling air outlet (7).
6. Fan housing (5) according to claim 1 or 2, characterized in that: the fan housing (5) is provided with a removable wall.
7. Fan housing (5) according to claim 1 or 2, characterized in that: when accommodating a radial fan, the geometric extension of the rotational axis (15) of the radial fan (11) passes through the fan inlet (6).
8. The fan housing (5) according to claim 7, characterized in that: when accommodating a radial fan, the geometric extension of the rotational axis (15) of the radial fan (11) passes through the center point of the fan inlet (6).
9. Fan housing (5) according to claim 1 or 2, characterized in that: further comprises: a radial fan (11).
10. An air cooled compressor apparatus, characterized in that it comprises a fan housing (5) according to any one of claims 1 to 9.
11. Kit of parts, characterized in that it comprises a fan housing (5) according to any one of claims 1 to 9, a radial fan (11) adapted to be accommodated by the fan housing (5), a compressor and a cooler (4) adapted to be connected to the fan housing (5).
CN202320511763.7U 2022-03-16 2023-03-16 Fan housing, air-cooled compressor device and kit Active CN219827248U (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE2022/5180 2022-03-16
BE20225453A BE1030360B1 (en) 2022-03-16 2022-06-10 Air-cooled compressor installation
BE2022/5453 2022-06-10

Publications (1)

Publication Number Publication Date
CN219827248U true CN219827248U (en) 2023-10-13

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Family Applications (2)

Application Number Title Priority Date Filing Date
CN202320511763.7U Active CN219827248U (en) 2022-03-16 2023-03-16 Fan housing, air-cooled compressor device and kit
CN202310270329.9A Pending CN116771723A (en) 2022-03-16 2023-03-16 Fan housing, air-cooled compressor device and kit

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN202310270329.9A Pending CN116771723A (en) 2022-03-16 2023-03-16 Fan housing, air-cooled compressor device and kit

Country Status (1)

Country Link
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Also Published As

Publication number Publication date
CN116771723A (en) 2023-09-19

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