JP3364095B2 - L-shaped vertical gas turbine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas turbine in which a gas generator and an output turbine are connected in an L-shape.

[0002]

2. Description of the Related Art A so-called L-shaped vertical gas turbine in which a gas generator and an output turbine are connected to each other in an L-shaped vertical shape has not yet existed as a product and is under development.

Under such circumstances, there is the one shown in FIG. 3 which has not been publicly known but which has been considered in advance.

That is, the L-shaped vertical gas turbine considered prior to the present invention is housed in the soundproof outer jacket 1 and the output shaft 3 of the output turbine 2 is arranged vertically, and the output turbine 2
The exhaust gas exiting from the exhaust pipe 4 is exhausted straight upward from the exhaust pipe 4.

Further, an intake pipe 5 and a gas generator 6 are arranged in the horizontal direction, and are rigidly connected to an output turbine 2 arranged in the vertical direction by an intermediate passage 7. The support of the output turbine 2 is rotatably fixed at a point A on the axis line in the vertical direction with respect to the axis perpendicular to the longitudinal section of the torque direction of the output turbine 2. The gas generator 6 is rotatably supported by a support column 9 attached to a base plate 9 on the upstream side.

The line diagram shown in FIG.
It shows the extension movement of the shaft of B when cold (when stopped) and when it is hot (during operation). Since the support point A of the output turbine 2 receives torque at the center of rotation, its position is fixed. However, when the support point B of the gas generator 6 moves to the B'point, which is x in the horizontal direction and y in the vertical direction due to the horizontal extension during operation, the axis rotates about the A point. It has become.

[0007]

As described above, in the L-shaped vertical gas turbine shown in FIG. 3, the output turbine is supported rotatably with respect to the axis vertical to the vertical section, and is horizontal during operation. When the support point B of the gas generator moves to the point B'due to the extension of the direction, the shaft rotates around the point A.

However, in this system, it is unavoidable that the output shaft tilts with respect to the initial shaft center. This tilt can be absorbed by the flexible joint to some extent, but it is desirable that the rotary body combined with the driven machine should not tilt as much as possible.

In view of these points, it is an object of the present invention to provide an L-shaped upright output turbine in which the inclination of the output shaft is eliminated.

[0010]

SUMMARY OF THE INVENTION The present invention has the problems described above were solved all Kunasa, and soundproofing outer intake pipe arranged horizontally housed in clothing and gas generator, which is arranged in a vertical direction output In a gas turbine composed of a turbine and an exhaust pipe, the output shaft of the output turbine is arranged vertically, the entire intermediate passage outer casing is rigidly supported by a base plate on the foundation , and the intermediate passage inner casing is The gas generator
The intermediate passage at a plurality of positions in the circumferential direction of the horizontal plane passing through the axis center of
It is connected to the outer casing and has the same inner passageway case.
In the output turbine gas passage and the gas generator gas passage.
The present invention provides an L-shaped vertical gas turbine that is friction-fitted to each other, and is based on the entire outer casing of the intermediate passage that deflects the working gas supplied horizontally from the upstream in the output axis direction of the vertically arranged output turbine. By rigidly supporting the upper base plate, the heat expansion of the outer casing of the intermediate passage is performed in the vertical direction, and the deforming force transmitted from the outer casing of the intermediate passage to the output shaft is vertically upward, and the output shaft is tilted. And the inner casing of the intermediate passage is
Since it is connected to the outer casing at multiple points,
Flexible connection toward the center of the force axis
The inner casing of the interpassage is output at both ends of the flow gas turbine
Friction in gas passage and gas generator gas passage
Since it is a flexible friction fitting utilizing
Even if the heat expansion of the part of the
It was designed so that it would not kick .

Further, the present invention provides an L-shaped vertical gas turbine in which the gas generator and the output turbine are rigidly coupled and supported to the outer casing of the intermediate passage, and the gas generator and the output turbine have thermal expansion. Since it is rigidly connected to the intermediate passage outer casing that is designed to operate in the vertical direction, when the heat expansion of the gas generator or the output turbine is also transmitted to the intermediate passage outer casing, the vertical upward direction of the intermediate passage outer casing is increased. Integral to the deformation, the output shaft is not tilted even if this thermal expansion may reach the output shaft.

[0012]

The present invention also provides an L-shaped vertical gas turbine in which the upstream end of the gas generator is rotatably fixed to the upper end of a support column whose lower end is rotatably fixed to the base plate. However, since the support of the gas generator is rotatably fixed at the upper and lower ends of the support columns attached to the base plate, horizontal heat expansion is supported by the rotatable fixed part at the upper end. The tilting is made possible by a rotatable fixing portion at the lower end, which makes it possible to perform stable support like no other.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an outline view of a side surface of an L-shaped vertical gas turbine, and FIG. 2 is an explanatory diagram showing extension movement of a shaft during stop and during operation.

The L-shaped vertical gas turbine is housed in a soundproof outer garment 51, and an output shaft 53 of the output turbine 52 is vertically arranged. The intermediate passage outer casing 54 located under the output turbine 52 is rigidly supported at a point A by a base plate 55 installed on the foundation.

Therefore, the movement of the output shaft due to the thermal expansion of the casing 54 is directed substantially vertically upward, and the amount of movement is small because the heat is shielded from the inner casing 61 of the intermediate passage. Further, the exhaust gas exiting the output turbine 52 is exhausted straight upward through the exhaust pipe 56.

An intake pipe 57 and a gas generator 58 are horizontally provided.
And the two ends 59 of the intermediate passage outer casing 54 with the vertically arranged output turbine 52.
It is rigidly connected and supported by a and 59b.

The intermediate passage inner casing 61 is flexibly supported toward the center of the output shaft 53 at about three positions on the horizontal plane including the axial center of the gas generator 58 from the intermediate passage outer casing 54, and the same. Since the upstream end and the downstream end of the intermediate passage inner casing 61 are fitted to the gas generator 58 and the output turbine 52 while maintaining friction, they are flexibly supported by the gas generator 58 and the output turbine 52. It will be.

The upstream end of the gas generator 58 is rotatably fixed to the upper end of a support column 60 whose lower end is rotatably fixed to the base plate 55. Therefore, the gas generator 5
The horizontal thermal expansion of No. 8 is dealt with by the rotation free section above the support column 60, and the rotation free section below the support column 60 deals with the collapse of the support column 60.

FIG. 2 shows the axial extension movement of the support points A and B in the present embodiment when cold (at the time of stop) and hot (at the time of operation). Since the support point A is rigidly fixed to the base plate, the output shaft moves from A upwards during operation.
It becomes vertically upward like the flared A '. Along with this, the axis of the gas generator 58 in the horizontal direction inclines, but it is allowed because it is an independent single axis.

The shaft of the gas generator moves from B to x in the horizontal direction and B'in the vertical direction. Thus, according to the present embodiment, the output shaft 53 of the output turbine 52 is arranged vertically, and the intermediate passage outer casing 54
Since the entire structure is rigidly supported by the base plate 55 on the foundation, the movement of the output shaft 53 due to the thermal expansion of the intermediate passage outer casing 54 is substantially vertically upward.

Further, the gas generator 5 arranged horizontally.
8 and the output turbine 52 arranged in the vertical direction are rigidly connected to each other by the intermediate passage outer casing 54, and the upper and lower sides of the support pillar 60 in which the support of the gas generator 58 is attached to the base plate 55. Due to the freedom of rotation at the ends, the thermal expansion in the horizontal direction is dealt with by this upper rotation free part, and the collapse of the support column 60 is dealt with by the lower rotation free part. In this case, the shaft on the gas generator 58 side is tilted due to the thermal expansion of the output turbine 52 in the vertically upward direction, but is allowable because it is an independent single shaft (not connected to the driven machine).

Although the present invention has been described above with reference to the illustrated embodiments, the present invention is not limited to such embodiments.
It goes without saying that various modifications may be made to the specific structure within the scope of the present invention.

[0024]

As described above, according to the present invention, since the inclination of the output shaft of the output turbine during operation can be almost eliminated, the flexible joint used for the connection with the driven shaft is overwhelmed. Therefore, it is possible to obtain an L-shaped vertical gas turbine device that operates safely and reliably. Moreover, according to the present invention, the cable inside the intermediate passage is
An intermediate passage at a horizontal position that passes through the single axis of the gas generator axis.
Connected to the outer casing at several points and connected to the output
-Position corresponding to bin gas passage and gas generator gas passage
Then, by friction-fitting them, inside the intermediate passage
The casing is flexible using friction etc.
It is connected and thermal expansion does not affect the output shaft, so it is safe and
To obtain an L-shaped vertical gas turbine device that operates reliably
Was created.

According to the second aspect of the present invention, the gas generator arranged in the horizontal direction and the output turbine arranged in the vertical direction are rigidly connected to the intermediate passage outer casing,
It is possible to obtain an L-shaped vertical gas turbine device that absorbs thermal expansion by vertically upward deformation of the outer casing of the intermediate passage, does not affect the output shaft of the output turbine, and operates safely and reliably. .

[0026]

Further, according to the invention of claim 3 , the gas generator is rotatably supported by the supporting columns having the rotation free portions at the upper and lower ends, so that the heat expansion in the horizontal direction of the gas generator is absorbed. Therefore, it is possible to obtain an L-shaped vertical gas turbine device that operates safely and reliably without affecting the others.

[Brief description of drawings]

FIG. 1 is a lateral outline view of an L-shaped vertical gas turbine according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing the thermal expansion of the output turbine and the gas generator in FIG.

FIG. 3 is a side outline view of an L-shaped vertical gas turbine according to the prior art.

[Explanation of symbols]

51 soundproof outerwear 52 power turbine 53 Output shaft 54 Intermediate passage outer casing 55 base plate 56 Exhaust pipe 57 Intake pipe 58 gas generator 60 support pillars 61 Intermediate passage inner casing

─────────────────────────────────────────────────── --- Continuation of the front page (56) References JP-A-5-10152 (JP, A) JP-A-9-32795 (JP, A) JP-A-57-91327 (JP, A) JP-A-49- 43011 (JP, A) JP 64-53094 (JP, A) JP 9-189240 (JP, A) Actual development 4-34402 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) F02C 1/00-9/58 F23R 3/00-7/00

Claims (3)

(57) [Claims] 1. A gas turbine comprising an intake pipe and a gas generator, which are housed in a soundproof outer jacket and arranged in a horizontal direction, and an output turbine and an exhaust pipe, which are arranged in a vertical direction. The output shaft is arranged vertically, and the entire intermediate passage outer casing is rigidly supported by the base plate on the foundation ,
Pass the inner casing of the intermediate passage through the axial center of the gas generator.
The outer casing of the intermediate passage is provided at a plurality of positions in the circumferential direction of the horizontal plane.
The inner casing of the intermediate passage is connected to the
-Friction fit to the bin gas passage and the gas passage of the gas generator
L-Vertical gas turbine, characterized in that combined. 2. The L-shaped vertical gas turbine according to claim 1, wherein the gas generator and the output turbine are rigidly connected to and supported by the outer casing of the intermediate passage. Upstream end of wherein the gas generator is according to claim 1 or 2, characterized in that the base plate bottom to the rotatably pivotally to the upper end of the fixed support column fixed to the L
Vertical gas turbine.