JP4173166B2 - Vertical gas turbine equipment - Google Patents

Description

  The present invention relates to a vertical gas turbine apparatus that is packaged so that the installation space can be reduced by, for example, reducing the size and size of the apparatus, and more particularly, a vertical type that reduces noise by taking soundproofing measures at the bottom of the package. The present invention relates to a gas turbine device.

  For example, as a prime mover for driving a pump at a drainage station, a gas turbine has been increasingly used in recent years because it is easy to cope with environmental problems such as noise and vibration on the vicinity of the station, and simplification of maintenance and management. Moreover, in these facilities, since the entire apparatus is compact and the installation space in the drainage station can be reduced, the vertical gas turbine and the vertical speed reducer are vertically coupled to the vertical gas turbine apparatus. A pump device has been developed in which a main shaft of a vertical pump is connected to a lower end of an output shaft extending downward in the vertical direction.

  FIG. 5 shows an example of a vertical pump device using the vertical gas turbine device 10. This vertical pump device is installed, for example, in a drainage pump station. The vertical gas turbine device 10 in which the vertical gas turbine 14 and the vertical speed reducer 16 are housed in a vertically connected manner, and the vertical speed reducer 16 is fixed to a package base 18 to be packaged. It is installed on a gantry 22 that is mounted on the pump 20. The vertical pump 20 is installed on a floor 24 of the building, and the main shaft 26 and an output shaft 28 extending downward from the vertical reduction gear 16 are connected to each other via a coupling 30. Thus, when the vertical gas turbine 14 is driven, the main shaft 26 of the vertical pump 20 is driven through the vertical reduction gear 16 and the coupling 30 to drain water.

  However, in the conventional package type vertical gas turbine apparatus, the reduction gear is firmly installed on the package base and the driving torque of the reduction gear is transmitted to the output shaft. There was a problem that the vibration from the speed reducer was solid-propagated through the package base to the installation base and the driven device, and noise was generated in the lower part of the package base. Here, ambient noise generated from gas turbines and reduction gears is reduced by a soundproof enclosure, but it is generally difficult to take soundproofing measures for the lower part of the package base, which is the driving torque transmission surface, due to structural limitations. It was.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vertical gas turbine apparatus that can reliably reduce noise in the lower part of the package, which has been difficult in the past.

According to the first aspect of the present invention, a vertical gas turbine and a vertical speed reducer are vertically housed in a soundproof enclosure that covers the upper end and the periphery, and the vertical speed reducer is fixed to a package base and is installed in the vertical shape. In the vertical gas turbine apparatus packaged by projecting the output shaft of the speed reducer below the package base, the package base and a package support frame that contacts the peripheral edge of the package base and supports the entire package. The vertical gas turbine apparatus is characterized in that an anti-vibration rubber is interposed , and a pin receiving a shearing force is bridged between the package base and the package support frame .

  Thereby, the vibration transmitted by the solid propagation from the package base to which the vertical reduction gear is fixed to the package support frame is attenuated and reduced by the anti-vibration rubber, and the sound insulation effect can be improved. This anti-vibration rubber has a different effect of damping the vibration depending on the tightening condition, and the effect of damping the vibration is higher when it is more free.

Moreover, without frictional force of rubber vibration insulator, a mechanical connection by a pin may be mechanically rigid structure.

The invention according to claim 2 is the vertical gas turbine apparatus according to claim 1, further comprising a stopper for regulating a distance between the package base and the package support frame .
This makes the anti-vibration rubber more free and increases the effect of preventing vibrations, and even if the anti-vibration rubber deteriorates, uneven distortion and axial displacement will occur in the package. Can be prevented.

According to a third aspect of the present invention, a vertical gas turbine and a vertical speed reducer are vertically housed in a soundproof enclosure that covers the upper end and the periphery, and the vertical speed reducer is fixed to a package base and is installed in the vertical shape. In the vertical gas turbine apparatus packaged by projecting the output shaft of the speed reducer below the package base, an anti-vibration rubber is interposed between the base support plate and the base frame constituting the package base , a vertical machining gas turbine apparatus characterized by looped over a pin for receiving the shear forces between the base support plate and the base frame.

  Thereby, the vibration transmitted by the solid propagation from the base support plate constituting the package base to which the vertical reduction gear is fixed to the base frame can be attenuated and reduced by the anti-vibration rubber, thereby improving the soundproofing effect. This anti-vibration rubber has a different effect of damping the vibration depending on the tightening condition, and the effect of damping the vibration is higher when it is more free.

Moreover, without frictional force of rubber vibration insulator, a mechanical connection by a pin may be mechanically rigid structure.

According to the present invention, an anti-vibration rubber is interposed between the package base and the package support frame that contacts the peripheral edge of the package base and supports the entire package, or between the base support plate and the base frame constituting the package base. by doing so, Ru can increase the soundproofing effect is reduced by attenuating with rubber cushion vibration transmitted by borne downward.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows an overall configuration of a vertical gas turbine apparatus according to a first embodiment of the present invention. This vertical gas turbine apparatus 10 covers an upper end and a periphery thereof to reduce noise around the soundproof enclosure. The vertical gas turbine 14 and the vertical speed reducer 16 are vertically coupled and housed in the interior 12, the vertical speed reducer 16 is fixed to the package base 18, and the output shaft 28 is exposed downward to be packaged. It has become.

  A lower soundproofing device 40 for reducing noise at the bottom of the package is attached below the vertical gasturbine device 10, and the vertical gas turbine device 10 is attached to the gantry 22 via the lower soundproofing device 40. A main shaft 26 such as a vertical pump (not shown) is connected via a coupling 30 to an output shaft 28 that is installed above and extends downward from the vertical speed reducer 16.

  The lower soundproofing device 40 includes a cylindrical soundproofing cover 42 surrounding the output shaft 28 or the coupling 30, a rectangular flat soundproofing panel 44 disposed around the soundproofing cover 42, and a vibration-proof rubber 46 on the upper surface. , A bolt 50 for connecting the base frame 18a of the package base 18 and the package support frame 48, and a pin 52 spanned between the base frame 18a and the package support frame 48. Have.

FIG. 2 is a diagram showing details of the lower soundproofing device 40. A support plate 54 and an anti-vibration rubber 46 are vertically arranged between the base frame 18a and the package support frame 48, and the package support is provided from the base frame 18a. The base frame 18 a and the package support frame 48 are connected to each other by bolts 50 extending to the frame 48. The pin 52 has a bulging portion substantially equal to the thickness of the anti-vibration rubber 46 in the middle along its length direction, and is fixed by driving this lower end into a through hole provided in the package support frame 48. is, the upper end is loosely fitted into the through hole provided in the support plate 54.

  Thereby, the vibration transmitted through the solid propagation from the package base 18 to which the vertical reduction gear 16 is fixed to the package support frame 48 is attenuated and reduced by the anti-vibration rubber 46, so that the sound insulation effect can be improved. On the other hand, the pin 52 is for transmitting the driving torque from the base frame 18a of the package base 18 to the package support frame 48 side via the support plate 54, and thus the support plate 54, the package support frame 48, and the like. By mounting the pin 52 between them, the driving torque can be transmitted to the package support frame 48 side with a mechanically strong structure by the mechanical connection by the pin 52 without depending on the frictional force of the anti-vibration rubber 46. it can.

  Here, the anti-vibration rubber 46 has a different effect of attenuating the vibration depending on the tightening condition, and the effect of attenuating the vibration is higher when it is made free. Therefore, as shown in FIG. 3, a stopper 56 made of a bolt that is screwed to the package support frame 48 is disposed adjacent to the bolt 50, and a nut 58 for fixing the stopper 56 is screwed to the stopper 56. ing. Then, with the tip of the stopper 56 lightly contacting the support plate 54, the stopper 56 is fixed via the nut 58, and then the package base 18 and the package support frame 48 via the bolt 50 and the double nut 60. Are connected up and down.

  That is, the bolt 50 is for connecting the base frame 18a and the package support frame 48 up and down without tightening the anti-vibration rubber 46, and the shearing force is mainly received by the pin 52. . In addition, by arranging the stopper 56 in this way, even if the anti-vibration rubber 46 shrinks due to deterioration or aging, it is possible to prevent the package from sinking unevenly or causing abnormal axial displacement. Can do.

  A base cover 62 having a flat soundproof panel 44 attached to the upper surface is attached to the inner peripheral surface of the package support frame 48, and a cylindrical soundproof cover 42 is attached to the inner peripheral surface of the base cover 62. Each coupling cover 64 is attached.

  Here, the package base 18 includes a base frame 18a and a base support plate 18b, and the vertical reduction gear 16 is attached to the upper surface of the base support plate 18b via a mounting seat 16a.

  Thereby, in the lower part of the package, the transmitted sound is emitted from the entire lower surface of the speed reducer 16 to the lower part of the package, but this transmitted sound is shielded by the soundproof panel 44 of the lower soundproofing device 40 provided below the package base 18. In addition, noise leaking from the periphery of the output shaft 28 can be reduced by the soundproof cover 42 to reduce noise transmitted to the lower part of the package.

  The package support frame 48 is made of mold steel, and a sound insulating material 66 is filled in the outer peripheral recess of the mold steel, and the opening is closed by a soundproof plate 68. Further, the sides of the package base 18 and the upper ends of the package support frame 48 are surrounded by an oilproof cover 70.

  FIG. 4 shows a main part of a vertical gas turbine apparatus according to a second embodiment of the present invention, which is a package base 18 in which a lower soundproofing device is incorporated. In other words, the support plate 54 and the anti-vibration rubber 46 are arranged vertically between the base frame 18 a and the base support plate 18 b constituting the package base 18, and the pin is interposed between the base support plate 18 b and the support plate 54. 52, and a soundproof panel 44 is attached to the base frame 18a. Other configurations are the same as those of the first embodiment.

1 is a schematic diagram of a vertical gas turbine apparatus according to an embodiment of the present invention. It is a principal part enlarged view of the lower soundproofing apparatus of FIG. FIG. 3 is a left side view of FIG. 2. It is a FIG. 2 equivalent view of the gas turbine apparatus of the 2nd Embodiment of this invention. It is a schematic diagram of a vertical pump device using a vertical gas turbine device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vertical gas turbine apparatus 12 Soundproof enclosure 14 Vertical gas turbine 16 Vertical reducer 16a Mounting seat 18 Package base 18a Base frame material 18b Base support plate 22 Base 26 Main shaft 28 Output shaft 30 Coupling 40 Lower soundproof device 42 Soundproof cover 44 Soundproof panel 46 Vibration-proof rubber 48 Package support frame 50 Bolt 52 Pin 54 Support plate 56 Stopper 58 Nut 60 Double nut 62 Base cover 64 Coupling cover 66 Sound insulation material 68 Soundproof plate 70 Oilproof cover

Claims (3)

A vertical gas turbine and a vertical speed reducer are vertically housed in a soundproof enclosure that covers the upper end and the periphery. The vertical speed reducer is fixed to the package base, and the output shaft of the vertical speed reducer is connected to the package base. In a vertical gas turbine apparatus that projects downward and is packaged,
Anti-vibration rubber is interposed between the package base and a package support frame that contacts the peripheral edge of the package base and supports the entire package, and receives a shearing force between the package base and the package support frame. A vertical gas turbine device characterized in that a pin is passed over . The vertical gas turbine apparatus according to claim 1 , further comprising a stopper that regulates a distance between the package base and the package support frame . A vertical gas turbine and a vertical speed reducer are vertically housed in a soundproof enclosure that covers the upper end and the periphery. The vertical speed reducer is fixed to the package base, and the output shaft of the vertical speed reducer is connected to the package base. In a vertical gas turbine apparatus that projects downward and is packaged,
Anti-vibration rubber is interposed between a base support plate and a base frame constituting the package base, and a pin receiving a shearing force is spanned between the base support plate and the base frame. Vertical gas turbine equipment.

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