JP3216961B2 - Gas turbine equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a structure in which an intake port for supplying air from the atmosphere to a gas turbine device is provided below the gas turbine device, thereby reducing the size and rationalization of a building in which a gas turbine is installed. Gas turbine equipment.

[0002]

2. Description of the Related Art FIG. 6 shows a prior art, in which a gas turbine device 10 and an exhaust heat recovery boiler (not shown) which generates steam by using its combustion gas as a heat source (provided at the end of a gas turbine exhaust duct 16). A combined cycle plant including a steam turbine device 40 that uses generated steam as driving steam and a generator 13 driven by both turbines is shown. The intake air of the gas turbine device 10 is guided from the atmosphere to the gas turbine device 10 through a filter and a silencer. However, since the intake port 15 of the gas turbine device 10 is located at the side (side) or at the top, the intake duct 4 is provided for the gas turbine. Apparatus 10
Is laid so as to be guided to the gas turbine device 10 from the side (side surface) or the upper part of the gas turbine device 10.

[0003]

In the prior art,
Since the intake port of the gas turbine device is at the side or at the top, the intake duct led from the atmosphere through the filter and silencer is laid at the side or at the top of the gas turbine device. Above is disadvantageous due to the large bending of the duct, and it is also inconvenient for disassembling repair and assembly of the gas turbine.
It is also disadvantageous in noise control.

Accordingly, it is an object of the present invention to simplify the installation of an intake duct, to make a storage building for installing a gas turbine device compact, to facilitate disassembly and assembly of the gas turbine device, and to reduce intake duct noise in gas turbine equipment. The goal is to improve.

[0005]

According to the present invention, there is provided a common base on which a gas turbine and a generator are mounted, and an intake passage to the gas turbine is arranged below a mounting position of the gas turbine on the base. And a gantry on which the gas turbine is mounted
Use itself as an intake passage as a box-shaped structure
An intake port that guides air to the gas turbine through the intake passage is formed by vertically penetrating the gantry, and a part of an exhaust passage that guides exhaust gas from the gas turbine is positioned on the gantry. The intake passage and the exhaust passage are arranged along the direction in which the gas turbine is arranged, and the filter is arranged so that a part of the intake passage is located immediately below the exhaust passage. A chamber is provided at one end of the intake passage, and the filter chamber is disposed immediately below the exhaust passage so as to be located in a longitudinally disposed region of the exhaust passage. In addition, a gas turbine, an intake passage that guides intake air to the gas turbine, an exhaust passage that guides exhaust gas from the gas turbine, and a steam turbine that is driven by supplying steam generated using the exhaust gas of the gas turbine as a heat source, A gas turbine facility comprising: a condenser for condensing steam supplied to the steam turbine; and a generator, wherein a mount on which the gas turbine is mounted has a box-type structure.
As a thing, use itself as an intake passage
The gas turbine, the steam turbine, and the generator are arranged in a straight line on a plane set on the gantry, and the gantry is set below the plane and cut below the gantry. The intake passage and the condenser in the longitudinal direction of the intake passage are disposed on one plane, and a filter chamber is provided at one end of the intake passage, and the filter chamber is located immediately below the exhaust passage. The exhaust passage is disposed so as to be located in an arrangement region in a longitudinal direction of the exhaust passage.

[0006]

According to the structure of the present invention, the gantry , the intake passage, and
It is possible to reduce the size of the gas turbine equipment including the exhaust passage and the filter chamber and the size of the storage building for the gas turbine equipment. In addition, the path of the intake duct is simplified, and the laying of the intake duct is simplified, so that the storage building where the gas turbine is installed can be reduced. .

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Prior to description of embodiments of the present invention, a combined cycle plant equipped with a gas turbine will be described. The combined cycle plant includes a gas turbine device, an exhaust heat recovery boiler that generates steam by using combustion gas discharged from the gas turbine device as a heat source, and a steam turbine device that uses steam generated by the exhaust heat recovery boiler as driving steam. And a denitration device for removing the NOx component of the combustion gas discharged from the gas turbine device. The gas turbine device has a compressor that pressurizes the introduced air, a combustor that burns the pressurized air with the fuel supplied from the fuel system, and a turbine that is driven by combustion gas generated by the combustion.
The gas turbine is coupled to a loading generator. Further, the exhaust heat recovery boiler has a superheater, an evaporator, and a economizer along the upstream and downstream of the combustion gas flow guided from the gas turbine device, and is discharged through a chimney. The steam generated by the superheater is guided to a steam turbine device through a steam pipe.
The steam turbine is coupled to a generator to take off the load. Then, the feedwater condensed by the steam turbine device is led to a economizer through a feedwater pipe. Furthermore, in this waste heat recovery boiler device, a denitration device is installed between the evaporator and the superheater.

The gas turbine and the steam turbine of the combined cycle plant are either connected to different generators or are connected to the same generator (FIG. 6 is an example). Although the present invention can be applied to any of them, the following mainly describes embodiments of the present invention in the latter case. The present invention is of course applicable to a gas turbine alone plant instead of a combined cycle plant.

An embodiment of the present invention will be described below. In this embodiment, as shown in FIGS. 1 and 2, the intake port 15 of the intake chamber 19 connected to the compressor 11 of the gas turbine device is located below, and the intake duct 4 is connected to this structure. Is trying to simplify the route. The lower intake structure of this gas turbine is further described in FIGS.
This will be described with reference to FIG.

The gas turbine device 10 is supported by a concrete mount 17. The intake chamber 19 has an intake port 15 at a lower portion as shown in the figure.
Introduced into the compressor 1 through the inlet casing 8
1 is adopted. The air introduced into the compressor is compressed, guided to the combustor, directly combusted with fuel, sent to the gas turbine 12, expanded in the gas turbine 12 to generate power, and then exhausted to the exhaust duct 16. .
The intake duct 4 is laid under the gantry 17 and between the columns 17 ′ of the gantry 17, and is connected to the intake port 15 below the intake chamber 19.

FIG. 3A is a side view of the above embodiment including the steam turbine 40 and the generator 13 as a combined cycle plant, and FIG. b). 10 is the gas turbine device described above,
40 is a steam turbine, 13 is a generator, 43 is a condenser, 6
Is an intake filter for the intake duct 4, and 17 'is a column of the gantry 17.

FIG. 4 is an embodiment in which two plants as shown in FIG. 3 are arranged side by side, and is also a plan view seen at the AA level, and the branched intake air laid below the gantry 17 is shown. Each duct 4 is connected to the lower intake port 15 of each intake chamber 19 of the gas turbine device.

FIG. 5 is a plan view of another embodiment, also viewed at the AA level. In this embodiment, instead of the pedestal 17 having a structure with columns 17 ', the pedestal 17 itself is made of a concrete box. And use it as an intake duct,
The lower intake port 15 of the intake chamber 19 of the gas turbine device
Are connected. Intake duct 4 'from intake filter 6
Is connected to the box-shaped concrete intake duct / pedestal 17 by a duct connection fitting 18.

In each of the embodiments described above, a floor of the same or substantially the same level as the upper surface of the gantry 17 is provided around the gantry 17 with a gap of about 2 to 3 cm between the gantry and the gantry. Have been. In each of the above embodiments, the intake duct is laid below the gantry 17 or its surrounding floor. For this reason, the gas turbine storage building can be rationalized and downsized, and the path of the intake duct to the intake port of the gas turbine device becomes simple with little bending, leading to an improvement in output and performance of the gas turbine. Further, in the prior art, when disassembling and assembling the gas turbine device, it is necessary to disassemble the intake duct located above the gantry or the floor, and then disassemble the casing and the rotor of the gas turbine device sequentially. However, in the present invention, the casing and the rotor can be easily disassembled irrespective of the intake duct, and the assembling can be facilitated irrespective of the intake duct by employing the lower intake structure and the lower laying structure of the intake duct. Also, in the conventional technology, the intake duct located above the gantry or floor is one of the causes of noise in the floor space,
According to the present invention, the intake duct is hidden under the gantry or floor and is not present above, so that noise is reduced.

[0015]

According to the present invention, the path of the intake duct is simplified, the performance of the gas turbine is improved, the size of the storage building in which the gas turbine device is installed is reduced, and the gas turbine accessories installed near the gas turbine are installed. Can be made compact.

[0016] Further, since the intake duct is laid in the gantry supporting the gas turbine device or under the surrounding floor,
Noise can be reduced. In addition, disassembly and
Assembly can be easily performed independently of the intake duct.

[Brief description of the drawings]

FIG. 1 is a partially sectional side view of a lower intake gas turbine device according to an embodiment of the present invention.

FIG. 2 is a side view showing the lower intake gas turbine device and the intake duct of the embodiment.

FIGS. 3 (a) and 3 (b) are an overall side view of the embodiment and a plan view thereof at AA level.

FIG. 4 is a plan view of another embodiment of the present invention as viewed at AA level.

FIG. 5 is a plan view of another embodiment of the present invention as viewed at AA level.

FIG. 6 is a perspective view showing an arrangement of a conventional gas turbine device and an intake duct.

[Explanation of symbols]

4 ... intake duct, 6 ... intake filter, 10 ... gas turbine device, 11 ... compressor, 12 ... gas turbine, 13 ... generator, 15 ... intake port, 17 ... mount, 17 '... mount column,
18 ... duct connection fittings, 19 ... intake chamber, 40 ... steam turbine, 43 ... condenser.

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-50-154608 (JP, A) JP-A 58-129008 (JP, U) JP-A 62-16702 (JP, U) JP-A 52- 154503 (JP, U) "Toshiba Review" Vol.42 No.6 (1987-6-1) Pictorials and p.418-419

Claims (4)

(57) [Claims] A gas turbine and a generator mounted on a common base, wherein an intake passage to the gas turbine is disposed below a mounting position of the gas turbine on the base ;
The base on which the turbine is mounted is a box-type
A body configured to be used as an intake passage, an intake opening for guiding air to the gas turbine through the intake passage is formed through the mount vertically, and a part of an exhaust passage for guiding exhaust gas from the gas turbine. Are arranged so as to be located on the gantry, the intake passage and the exhaust passage are respectively arranged along a direction in which the gas turbine is arranged, and a part of the intake passage is located immediately below the exhaust passage. So that
A gas turbine, wherein a filter chamber is provided at one end of the intake passage, and the filter chamber is disposed immediately below the exhaust passage so as to be located in a longitudinally disposed region of the exhaust passage. 2. A have a common frame mounted with the gas turbine and the generator, disposed an intake passage to the gas turbine lower than the mounting position of the gas turbine of the pedestal, the gas
The base on which the turbine is mounted is a box-type
A body configured to be used as an intake passage, an intake opening for guiding air to the gas turbine through the intake passage is formed through the mount vertically, and a part of an exhaust passage for guiding exhaust gas from the gas turbine. Is disposed on the gantry, a part of the exhaust passage is disposed in a direction opposite to a direction in which the generator is located with respect to the gas turbine, and the intake passage and the exhaust passage are connected to the gas turbine. Are respectively disposed along the disposition direction, a part of the intake passage is located immediately below the exhaust passage, a filter chamber is provided at one end of the intake passage, and the filter chamber is located immediately below the exhaust passage, A gas turbine, wherein the gas turbine is disposed so as to be located in a longitudinally disposed region of an exhaust passage. 3. A gas turbine, an intake passage for introducing intake gas to the gas turbine, an exhaust passage for introducing exhaust gas from the gas turbine, and a steam driven by supply of steam generated using the exhaust gas of the gas turbine as a heat source. A gas turbine facility comprising a turbine, a condenser for condensing steam supplied to the steam turbine, and a power generator, wherein a mount on which the gas turbine is mounted has a box-type structure.
The gas turbine, the steam turbine, and the power generator are arranged on one plane set on the gantry in a straight line, and are arranged below the plane. In another plane set to cut the gantry, the intake passage and the condenser in the longitudinal direction of the intake passage are disposed, and a filter chamber is provided at one end of the intake passage. Wherein the filter chamber is disposed immediately below the exhaust passage so as to be located within an arrangement region in a longitudinal direction of the exhaust passage. 4. A gas turbine, an intake passage for introducing intake gas to the gas turbine, an exhaust passage for introducing exhaust gas from the gas turbine, and a steam driven by supplying steam generated using the exhaust gas of the gas turbine as a heat source. A gas turbine facility comprising a turbine, a condenser for condensing steam supplied to the steam turbine, and a power generator, wherein a mount on which the gas turbine is mounted has a box-type structure.
The gas turbine, the exhaust passage, the steam turbine, and the generator are arranged in a straight line on one plane set on the gantry, On another plane below the plane and set to cut the gantry, the intake passage is provided immediately below the exhaust passage and the condenser is located in the longitudinal direction of the intake passage. A gas turbine equipment, wherein a filter chamber is provided at one end of the intake passage, and the filter chamber is disposed immediately below the exhaust passage so as to be located in a longitudinally disposed region of the exhaust passage. .