比利时专利BE1022264B1 PACKAGE TYPE FLUID MACHINE

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专利摘要:
A package type fluid machine with a plurality of fluid machine units (1), each of which has a fluid machine (4), a motor (5) that drives the fluid machine (4), and a belt (8) that drives the fluid machine (4) and the motor (5) connects. The plurality of fluid machine units (1) are disposed in a housing, the plurality of fluid machine units (1) having a pair of the fluid machine units (1) positioned opposite each other, with the straps (8) of the fluid machine units (1) facing inward.
公开号:BE1022264B1
申请号:E2014/0048
申请日:2014-01-29
公开日:2016-03-07
发明作者:Atsushi Kanaizumi
申请人:Hitachi Industrial Equipment Systems Co., Ltd.；
IPC主号:

专利说明:

PACKAGE TYPE FLUID MACHINE
BACKGROUND OF THE INVENTION
The present invention relates to a package type fluid machine (in English "package type fluid machine").
The prior art in the technical field of the present invention is described in Japanese Patent JP-A-2005-98147 or US Patent No. 2005/0063844.
A package type fluid device is described in Japanese Patent JP-A-2005-98147 or US Patent Application Publication No. 2005/0063844. This package type fluid device has two (left and right) housings with an air inlet passage between them and each of the housings has multiple chambers. In each of the chambers, a drive source and a fluid machine form a fluid machine unit.
SUMMARY OF THE INVENTION
The package type fluid machine described in Japanese Patent JP-A-2005-98147 or US Patent Application Publication No. 2005/0063844 is positioned so that the pulley and the belt of one of the fluid machine units face outward. In a fluid machine, for safety reasons, the parts that require maintenance (for example, the suction filter of a fluid machine) are usually placed on the side opposite the side on which the rotating objects, such as the pulley and the belt supporting the fluid machine and the connect the drive source. Therefore, the parts of the fluid machine unit described above that require maintenance are placed inside (on the inlet port side). Therefore, the fluid machine unit described in Japanese Patent JP-A-2005-98147 or US Patent Application Publication No. 2005/0063844 requires maintenance space between the two fluid machine units, requires a larger installation area and makes it difficult to total size of the product.
In view of the foregoing, it is an object of the present invention to provide a package type fluid machine that requires a smaller installation area.
To solve the above-described problem, the present invention provides a package type fluid machine comprising a plurality of fluid machine units, each of which is a fluid machine, a motor that drives the fluid machine, and a belt that transfers the power from the motor to the fluid machine, include. The plurality of fluid machine units are disposed in a housing in which the plurality of fluid machine units have a pair (pair) of the fluid machine units positioned opposite one another with the straps of the fluid machine units facing inward.
According to the present invention, a package type fluid machine is provided that requires a smaller installation area.
Other objects, features and advantages of the invention will become apparent from the following description of the embodiments of the invention, together with the accompanying illustrations.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing the structure of a package-type compressor in a first embodiment of the present invention. FIG. 2 is a diagram showing the structure inside the package of the package type compressor in the first embodiment of the present invention. FIG. 3 is a diagram showing the compressor unit in the first embodiment of the present invention. FIG. 4 is a diagram showing the compressor unit in the first embodiment of the present invention from which a fixed roll has been removed. FIG. 5 is a diagram showing the air flow in the package type compressor compressor housing in the first embodiment of the present invention. FIG. 6 is a diagram illustrating the air flow in the package type compressor compressor housing in the first embodiment of the present invention. FIG. 7 is a diagram illustrating the structure within the package type compressor compressor housing in a second embodiment of the present invention. FIG. 8 is a diagram showing the structure inside the package of the compressor of the package type in a second embodiment of the present invention. FIG. 9 is a diagram showing the structure within the housing of a package type compressor in a third embodiment of the present invention.
DESCRIPTION OF THE EMBODIMENTS
[First embodiment]
A first embodiment of the present invention has been described with reference to FIG. 1 to 5. The present invention relates to a fluid machine comprising a roller type compressor or other types, a vacuum pump, an expansion device, and a blower. The present invention more particularly relates to a package type fluid machine that comprises a combination of a liquid machine and a drive device (motor) in the housing (package). In this embodiment, a package type compressor, wherein a roll type compressor and a motor are placed in the housing, is used as an example.
In this embodiment, the roller type compressor comprises a fixed roller 18 and a rotating roller 19 driven by the motor. In the example described below, the rotating roller 19, which is positioned opposite the fixed roller 18, performs the rotation movement to compress air.
A package type compressor in the present invention is described below with reference to FIG. 1 and FIG. 2. FIG. 1 is a diagram showing the package type compressor in this embodiment viewed from outside the housing. FIG. 2 is a diagram showing the structure of the inside of the housing shown in FIG. 1. In this embodiment, a plurality of compressor (fluid machine) units 1 are stacked in each of stacking units 2 with the aid of a frame 11, and these stacking units 2 are placed opposite each other on a base 12 via a rubber vibration isolator 10 which controls the vibration of the compressor unit 1, with a pulley 3 and a belt 8 facing inwards. That is, at least two compressor units 1 in this embodiment are placed opposite each other with the pulley 3 and the belt 8 facing inwards, and that two opposite compressor units 1 are placed in different stacks. Although the stacking unit 2, in which two compressor units 1 are stacked in different stacks, is used as an example in this embodiment, a pair of compressor units 1 must not always be stacked, but it may also be placed in a single stack.
The configuration of the compressor unit 1 is described with reference to FIG. 3. The compressor unit 1, which comprises a compressor (fluid machine) main part 4, a motor 5 and an aftercooler 6, is placed on a compressor base 7. The compressor main part 4 is driven by transferring the power from the motor 5 to the compressor main part 4 via the pulleys provided on the motor 5 and the compressor main body 4, and the belt 8 connecting the pulleys 3. When the compressor main body 4 is driven by the motor 5 via the pulleys 3 and the belt 8, air is taken from outside via a suction filter 15 and the air is compressed.
Because the compressor main body 4 draws in air from outside via the suction filter 15, it must be prevented that the suction filter 15 gets clogged with dust. This means that the suction filter often requires maintenance. In addition, the inside of the roller (inside the compressor main body 4) requires regular maintenance such as changing the seal and topping up the spread. As shown in FIG. 4, the fixed roll 18 must be removed to maintain the inside of the roll. Therefore, the maintenance of the suction filter 15 and the compressor main body 4 requires a lot of space.
On the other hand, when the belt tension for the pulley 3 and the belt 8 is adjusted, only the minimum distance for measuring the center distance between the compressor body 4 and the motor 5 is required, and therefore not much room is required for adjusting the belt tension (e.g. about 100 mm). The pulley 3 usually stops during maintenance, but can rotate by driving the compressor main body 4 with the motor 5. Therefore, for safety reasons, the pulley 3 is placed away from the parts requiring maintenance such as the compressor main body 4 (in the particularly fixed roller 18 to be removed) or the suction filter 15.
In view of the above-described configuration, a pair of compressor units 1 in this embodiment are positioned in such a way that the compressor units 1 are placed opposite each other so that the parts requiring maintenance, such as the compressor main body 4 (in particular the fixed roller 18 to be removed) and the suction filter 15, facing outwards and the pulleys 3 and the belt 8 facing inwards as shown in FIG. 2. Thanks to this configuration, the parts that require maintenance, such as the fixed roller 18 (inside of compressor main part 4) and the suction filter 15, are easily accessible on the right or left of the housing, making it easy to clean the suction filter 15 or remove the fixed roll.
Moreover, since little space is required for adjusting the belt tension, the distance between the stacking unit 2 is made smaller. This structure can reduce the installation zone of the base 12 and can also reduce the overall size of the product.
Although a roll-type compressor has been described as an embodiment of the invention, the suction filter of a reciprocating compressor and a screw-type compressor must also be cleaned and the inside of the main part of a reciprocating compressor and the main part of a screw-type compressor. That is, also for a reciprocating compressor and a screw-type compressor, the pulleys 3 and the belt 8 are placed inside and the main part 4 of the compressor requires maintenance and the suction filter 15 is placed outside the pulley 3 and the belt 8 as in the roller type compressor.
The cooling of a zone near the compressor main body 4 in this embodiment is described with reference to FIG. 3.
The compressor main body 4 generates high-temperature compression heat during air compression. In addition, the compressor main body 4 and the motor 5 generate heat during the operation and this generated heat increases the temperature inside the housing. This high temperature in the housing can compromise the reliability of the compressor main body 4, the motor 5 or other components. Therefore, it is necessary to efficiently ventilate the inside of the housing for cooling the compressor main body 4 and the motor 5.
To address this problem, a sirocco fan 9 included in the compressor main body 4 takes the ventilation wind in this embodiment to cool and extract the inside of the main body. The aftercooler 6, which is placed at the outlet port of the cooling wind, cools the hot compressed air that has been compressed by the compressor.
Each compressor unit 1 cools air as described above. Because there are multiple compressor units 1 in the housing in this embodiment, the cooling wind must be efficiently circulated so that the cooling wind of the compressor units does not collide. The cooling of the inside of the housing in this embodiment is described with reference to FIG. 5 and 6.
When the compressor units 1 are placed opposite each other (left and right), inlet ports 17 are provided on the left and right sides and a main outlet port is provided on the upper plate, placed above the compressor units 1, as shown in FIG. 5. That is, in this embodiment, the housing is ventilated by taking air from the left and right sides and then discharged from above.
As shown in FIG. 6, the compressor main part 4 of one of the compressor units 2 of a pair of opposite compressor units is directed to the motor 5 of the other compressor unit in this embodiment. The inlet ports 17 (in the housing not shown in FIG. 6, at the locations of the arrows) are provided in the parts which are each on the left or right side of the housing and are directed towards the motors 5. Because the inlet ports 17 being shifted towards each other in the forward and backward directions on the left and right sides, this structure prevents the air received from the input ports 17 from colliding and cooling each compressor unit 1, thereby increasing the cooling efficiency.
Note that the sirocco fan 9 is provided in the compressor main body 4 in this embodiment. Because the sirocco fan 9 can receive the cooling wind, the cooling wind can be supplied to the compressor main body 4 even if the compressor main body 4 is placed in a position further away from the inlet port 17 than the motor 5. On the other hand, because the sirocco fan 9 is not is provided in the motor 5, a sufficiently cooling wind may not be supplied to the motor 5 if the motor 5 is placed in a position further away from the inlet port 17 than the compressor main part 4. The inlet port 17 is therefore provided on the side opposite the motor 5 in the housing in this embodiment to circulate the cooling wind in the order of motor 5, compressor main body 4 and aftercooler 6. By providing the inlet port in this way you prevent the cooling wind inside the compressor unit 1 and the housing becomes stagnant.
Although the inlet ports 17 are provided on the left and right sides in this embodiment, the inlet ports 17 can also be provided in the front-rear positions so that air is taken from the front and back and then discharged from above as the received air from the inlet ports 17 do not collide. That is, if the position of the inlet ports 17 on a side on which the inlet ports 17 are placed is different from the corresponding position on the opposite side, the air can be taken either from the front and rear or from the left and right. If air taken from the inlet ports 17 does not collide, a combined intake from the front and right or from the left and rear can also be used or the inlet ports 17 can be provided on the four sides (front, rear, left and right).
As shown in FIG. 6, the outlet of the compressor unit 1 is collected in an outlet line 14 provided in the housing, and the collected outlet is discharged to an outlet port of the outlet line provided above it. The outlet port of the outlet line is separately provided with the main outlet port provided at the top of the compressor unit 1. This structure ensures that the cooling wind which has cooled the compressor units 1 provided in the lower part of the stacking unit 2 and of which the temperature is raised, flows into the outlet line 14. Therefore, this structure prevents the cooling wind, which has cooled the compressor units 1 in the lower part and whose temperature has risen, from being mixed with the cooling wind for cooling the compressor units 1 in the upper part, thereby preventing the temperature of the cooling wind from cooling up of the compressor units 1 in the upper part. Consequently, the compressor units 1 in the upper part can be efficiently cooled.
As described above, a plurality of compressor units 1 are placed opposite each other with the belts 8 facing inwards in this embodiment. This structure reduces the distance between a pair of compressor units 1, reduces the total installation area of the product and reduces the overall size of the product.
In this embodiment, the main outlet port is provided above a pair of stacking units 2 placed opposite each other, one for each stacking unit 2. In addition, the positions of the two inlet ports 17 placed on the left and right sides are shifted in the forward and backward directions . This structure prevents the air received from the inlet ports 17 from colliding and makes the ventilation path in the housing independent of each other, thereby increasing the cooling efficiency. Because partitioning for configuring the ventilation path is not required, this embodiment particularly simplifies the configuration of panel members in the housing and increases the ease of assembling the members.
In this embodiment, both the main outlet port and the outlet port are provided with the outlet conduit to prevent the air in the housing from stagnating and to efficiently discharge the heated air. In addition, the exhaust fan 13, which is provided at the top of each stacking unit 2, expels the heated air from inside the housing. Because the heated air that is generated in the housing flows upstream, placing the exhaust fan 13 on the ceiling of the housing ensures that the heated air is efficiently discharged.
In this embodiment, the inlet port 17 of the housing is located at the rear of each engine, and the compressor unit 1 is cooled in the order of the engine 5, compressor main body 4 and aftercooler 6. This cooling method prevents the cooling wind in the compressor unit 1 and becomes stagnant inside the housing.
In addition, the aftercooler 6, which is provided at the bottom of the exhaust fan 13, also acts as a cooler for cooling the compressed air using the exhaust wind supplied from inside the housing, thereby simplifying the components and reducing the number of parts.
[Second embodiment]
A second embodiment of the present invention is described with reference to FIG. 7 and 8. For the configuration similar to the one in the first embodiment, the same reference number is given and its description is omitted.
In this embodiment, two compressor units 1, which are placed opposite each other, are shifted in height so that the compressor units 1 are shifted halfway relative to each other.
That is, the pulley 3 and the belt 8 of one of the pair of compressor units 1, which are placed opposite each other, are placed above or below the pulley 3 and belt 8 of the other compressor unit 1 in such a way that the pulleys 3 and the belts 8 of the compressor units 1 are placed linearly. This arrangement requires less space between the units as compared to the arrangement of the first embodiment, thereby reducing installation space.
[Third embodiment]
A third embodiment of the present invention is described with reference to FIG. 9. For the configuration similar to the one in the first and second embodiments, the same reference number is given and its description is omitted.
In this embodiment, the housing is configured by columnar panels in the four corners and the side panels are secured to the columnar panels. This embodiment further increases ease of assembly. In addition, the panel can be completely disassembled, making access to the inside of the housing easier during maintenance work, thereby increasing its maintainability.
A magnet can be used to attach the left and right panels, as opposed to the compressor main body 4 (suction filter 15) and the motor 5, without using screws. The magnet makes it easier to remove the panels. This method makes daily maintenance easier such as cleaning the suction filter 15 of the compressor main body 4 or checking the safety valve.
The embodiments described above are only examples of the present invention, and the technical scope of the present invention should not be construed as limiting the embodiments. That is, the present invention can be implemented in various forms without departing from the technical concept or its main features.
Although the present invention has been described with a roller type compressor as an example, the present invention can also be applied to a reciprocating compressor and a screw type compressor. In addition, the present invention can be applied not only to a compressor, but also to a fluid machine such as a vacuum pump, an expansion device, and a blower.
It will further be apparent to those skilled in the art that although the above description has been made on the basis of embodiments of the invention, the invention is not limited thereto and that various changes or modifications may be made without departing from the scope of the invention and the appended claims.

权利要求:
Claims (18)
[1]
CONCLUSIONS
A package type fluid machine, comprising: a plurality of fluid machine units (1), each of which is a fluid machine (4), a motor (5) driving said fluid machine (4), and a belt (8) that has a power of said fluid machine motor (5) to said fluid machine (4), wherein said plurality of fluid machine units (1) are disposed in a housing with said plurality of fluid machine units (1) a pair of said fluid machine units (1) ), which are placed opposite each other, with the belts (8) of said fluid machine units (1) facing inwards.
[2]
The package type fluid machine according to claim 1, further comprising a pair of inlet ports (17) provided on opposite sides of said housing, one for each side, with positions of said inlet ports (17) of the pair pushed toward each other.
[3]
The package type fluid machine according to claim 2, wherein said motor (5) of one of the fluid machine units (1) of said pair of opposite fluid machine units (1) and said fluid machine (4) of the other fluid machine unit unit (1) are placed opposite each other.
[4]
The package type fluid machine according to claim 2, wherein said inlet port (17) is provided on a portion facing the said motor (5) in said housing.
[5]
The package type fluid machine of claim 1, further comprising a main outlet port provided above said pair of opposed fluid machine units (1) on an upper side of said housing.
[6]
The package type fluid machine of claim 1, wherein said housing has a columnar panel and a side panel attached to said columnar panel.
[7]
The package type fluid machine according to claim 6, wherein said side panel, opposite said motor (5) and said fluid machine (4), is fixed on said columnar panel with a magnet.
[8]
The package type fluid machine according to claim 1, wherein said pair of opposite fluid machine units (1) is offset in height.
[9]
The package type fluid machine according to claim 5, further comprising: an outlet conduit (14) provided within said housing, and an outlet port of the outlet conduit connected to said outlet conduit (14) and disposed separately from said main outlet port .
[10]
A package type fluid machine comprising a plurality of fluid machine units (1) each comprising a fluid machine (4) on which a suction filter (15) is provided, and a motor (5) connected to said fluid machine (4) via a belt (8) for driving said fluid machine (4), said multiple fluid machine units (1) being placed in a housing, at least two of said fluid machine units (1) of said multiple fluid machine units units (1) are placed opposite each other with the said suction filter (15) facing outwards.
[11]
The package type fluid machine according to claim 10, wherein when at least one pair is formed by two fluid machine units (1) positioned opposite each other with said suction filter (15) facing outwards, said pair of fluid machine units (1) ) is arranged side by side in left and right directions, an inlet port (17) is provided on left and right sides of said housing with the positions of said inlet ports (17) shifted in forward and backward directions.
[12]
The package type fluid machine according to claim 11, wherein said engine (5) of one of the fluid machine units (1) of said pair of opposite fluid machine units (1) and said fluid machine (4) of the other fluid machine machine unit (1) are placed opposite each other.
[13]
The package type fluid machine according to claim 11, wherein said inlet port (17) is provided on a side facing said engine (5) in said housing.
[14]
A package type fluid machine according to claim 10, wherein on a top side of said housing, a main outlet port is provided above a pair of said opposite fluid machine units (1), one for each fluid machine unit (1).
[15]
The package type fluid machine of claim 10, wherein said housing has a columnar panel and a side panel is attached to said columnar panel.
[16]
The package type fluid machine according to claim 15, wherein said side panel, which is positioned opposite said suction filter (15), is attached to said columnar panel with a magnet.
[17]
The package type fluid machine according to claim 10, wherein said pair of opposed fluid machine units (1) is offset in height.
[18]
The package type fluid machine according to claim 14, further comprising: an outlet conduit (14) provided within said housing and an outlet port of the outlet conduit connected to said outlet conduit (14) and positioned separately from said outlet conduit main outlet port.

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法律状态:

优先权:

申请号 | 申请日 | 专利标题

JP13087972|2013-04-19|

JP2013087972A|JP5899150B2|2013-04-19|2013-04-19|Package type fluid machinery|

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