JP2003293792A - Gas turbine suction filter equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To compactly lay out entire gas turbine suction filter equipment by combining a gas turbine suction filter chamber with a turbine storage building. <P>SOLUTION: The suction filter equipment is supported by a part of the columns 8, beams 9, and walls of the turbine storage building 5. The equipment also comprises an external structure having a weather louver 13 allowing air to pass therethrough while suppressing the passing of rain water and an internal structure having replaceable filters 14 and 15 allowing the air passed through the weather louver to pass to suppress the passing of foreign matter in the air. An opening/closing mechanism 24 allowing a transport device 25 for transporting the filters to pass therethrough is installed in the external structure, and a space 23 for installing the transport device is provided between the external structure and the internal structure. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas turbine intake filter facility, and more particularly, to an intake filter facility that can be combined with a turbine housing to achieve a compact layout.

[0002]

2. Description of the Related Art An intake filter chamber of a gas turbine facility is located at an air intake port of an intake duct and has a weather louver,
And an intake filter disposed inside thereof. The weather louver is for preventing rainwater from mixing into the intake air, and the intake filter is for removing foreign matter such as dust (Japanese Patent Laid-Open No. 2001-107745, Japanese Patent Laid-Open No. 8-107745).
No. 312375, JP-A-6-317182, and Patent No. 2
94923).

[0003] A conventional intake filter chamber is constituted by a frame independent of the turbine housing and a casing made of steel plate in order to form an air passage portion, and is installed outside the turbine housing.

Further, in general, the air intake port of the intake filter chamber is located at a height away from the ground surface in order to prevent suction of dust on the ground surface and blockage of the intake port due to snowfall. The outside of the room is equipped with lifting equipment such as hoists and a stairway for workers to go up and down to replace the filter media.

[0005]

The intake filter chamber of the conventional gas turbine equipment is located at the most upstream part of the intake duct 3 as shown in FIGS. 8 to 10, for example. The intake duct 3 is a duct that guides air to the gas turbine device 2, and a duct passage is provided inside the gas turbine base 1.
In the outdoor part of the turbine housing building 5, a duct 40 having a steel plate steel frame structure is connected to the intake filter chamber 41. The intake filter chamber 41 has a steel-framed steel frame structure, and a filter 42 for removing dust in the sucked air is attached inside. The filter 42 divides and seals the inside of the filter chamber 41 into an upstream side 43 and a downstream side 44. A weather louver 13 for preventing rainwater from entering is attached to the air intake port on the upstream side 43 for taking in the atmosphere.

[0006] The filter chamber floor surface 22, which is the height of the air intake port of the intake filter chamber 41, is more than 1
It is generally located at a high position more than 2 m apart. Therefore, as shown in FIG. 10, the basic structure of the intake filter chamber 41 is a box-shaped steel plate structure mainly composed of columns and beam steel frames. In this case, the air intake port is located at a position higher than the ground surface, and the column length is required to increase the overall size of the filter chamber, which affects the layout of the turbine housing building 5 as a whole.

For example, in a combined cycle plant equipped with gas turbine equipment, an exhaust duct 50 leading to a boiler for utilizing exhaust heat of gas turbine 2 may be laid out above intake filter chamber 41. In such a case, the height of the intake filter chamber 41 is limited. Therefore, in order to secure the air intake port area of the intake filter chamber 41, an area is secured in the lateral direction, resulting in a compact layout. However, it is necessary to secure a large site area.

Further, since the turbine housing building 5, the steel plate intake duct 40 and the intake filter chamber 41 are independent structural members, the axial distance L of the gas turbine device 2 becomes large.

Further, dust adheres to the filter medium mounted inside the intake filter chamber 41 due to long-term operation, and the differential pressure across the filter rises. When the differential pressure across the filter reaches the replacement life, the plant must be shut down and a new filter media must be replaced. In this case, in order to shorten the downtime of the plant, it is desirable that the replacement work of the filter media can be performed in a short time and easily.

In the conventional intake filter chamber 41, only a few doors 26 through which workers enter and exit are installed, and the work efficiency of carrying in and out of filter media is poor, and the number of filter media exceeds several hundred. In such gas turbine equipment, it is desirable to improve the work efficiency of unloading / importing filter media.

In view of the above circumstances, the present invention combines an intake filter chamber of a gas turbine and a turbine storage building,
It is an object of the present invention to provide a gas turbine intake air filter facility that allows a compact layout as a whole.

[0012]

The present invention achieves the above object. The invention according to claim 1 has an air passage structure for taking in air to be supplied to a gas turbine. In the intake filter equipment for suppressing the passage of foreign matter, the gas turbine is installed in a turbine housing building having columns, beams and walls, and the air passage structure has columns, beams and walls of the turbine housing building. Is supported and configured by a part of the. According to the invention described in claim 1, the constituent members of the intake air filter chamber can be shared with the turbine housing building and the turbine foundation, and a compact layout can be achieved.

The invention described in claim 2 is the same as claim 1
In the gas turbine intake filter equipment according to claim 1, an outer structure including a weather louver that allows air to pass while suppressing the passage of rainwater, and a foreign substance in the air that is provided inside the outer structure and that passes through the weather louver. An inner structure that includes a replaceable filter that suppresses the passage of
The outer structure is provided with an opening / closing mechanism through which a transfer device that transfers the filter can pass, and a space for inserting the transfer device is provided between the outer structure and the inner structure. And

According to the invention of claim 2, claim 1
In addition to the effects and advantages of the invention described in 1., the filter can be directly carried into the intake filter chamber, and the unloading and loading work from the transport device can be done indoors, and the filter can be operated without being affected by outdoor weather. The replacement work can be performed more efficiently than the conventional unloading and loading work outdoors.

The invention according to claim 3 is the same as claim 1
In the gas turbine intake air filter facility according to the above item 2, an outer structure including a weather louver that allows air to pass therethrough while suppressing the passage of rainwater, and is provided inside the outer structure.
An inner structure including a replaceable filter that suppresses the passage of foreign matters in the air through the air that has passed through the weather louver, and is provided between the outer structure and the inner structure, and is used when replacing the filter. And / or at least one possible lifting device or stairs.

According to the invention of claim 3, claim 1
Alternatively, the function and effect of the invention described in 2 can be obtained, and the filter can be handled indoors by using lifting equipment and the like, and the filter replacement work can be performed more efficiently than the conventional method.

The invention according to claim 4 is the same as claim 1.
The gas turbine intake filter facility according to any one of claims 1 to 3, wherein the floor surface of the air passage structure is substantially the same as the ground surface height of the first floor of the turbine housing building,
The air intake of the air passage structure is provided with a cross wall that is raised from the height of the ground surface of the first floor of the turbine housing building.

According to the invention of claim 4, claim 1
In addition to the effects and advantages of the invention described in any one of 1 to 3, the filter chamber floor is arranged lower than the conventional structure while suppressing the inflow of dust and snow near the ground surface into the intake filter chamber. be able to.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIGS. Here, the same reference numerals are given to the portions common or similar to the above-mentioned conventional one,
Overlapping description will be omitted as appropriate.

As shown in FIG. 1 and the like, a gas turbine device 2 is installed on a base 1 with its axis being horizontal, an intake duct 3 is inside the turbine base 1, and an intake duct 3 is provided.
An intake filter chamber 4 is provided at the inlet of the.

The intake filter chamber 4 has a turbine storage building 5
The indoor part 6 and the outdoor part 7 projecting from the turbine housing building 5 are composed of columns 8 and beams 9 of the turbine housing building, respectively. Further, a part of the ceiling surface of the intake filter chamber 4 is composed of an extension portion 10 of the turbine base, a pillar of the turbine housing building, and a steel frame ceiling portion 11 supported by beams. The floor surface of the intake filter chamber 4 is a concrete floor surface 12. Turbine storage building 5 for air intake
A weather louver 13 is provided in the portion overhanging from the outside and facing the outside.

As shown in FIG. 4 etc., the weather louver 13
Is attached to the pillar 8 and the beam 9 in the projecting portion of the turbine housing building. As the filter medium, a primary filter 14 and a secondary filter 15 inside the primary base 14 are arranged inside the base 1 extending from the turbine base 1. The wall 16 of the intake filter chamber is supported by the columns 8 and the beams 9 of the turbine housing building, and is arranged as a partition wall forming an air passage portion from the weather louver 13 to the primary filter 14.

As a result, the components of the intake filter chamber 4 can be shared with the columns 8, beams 9, ceiling 11, floor 12 of the turbine housing building and the intake duct 3 of the turbine base 1, and the intake duct 3 leading to the gas turbine 2 can be used. Can be shortened, the axial distance L of the gas turbine device can be shortened as compared with the conventional plant, and the cost for construction can be reduced.

By the way, as shown in FIGS. 1 and 2, the height of the floor surface 22 of the intake filter chamber 4 is made substantially the same as the outdoor ground surface height 18 of the turbine housing building 5, and the air of the intake filter chamber 4 is Overhead wall 1 in which the weather louver 13 at the intake is raised from the ground level height 18 of the turbine storage building 5.
9 The structure is provided on the upper part. The height of the crossing wall 19 is, for example, about 200 to 2000 mm.

The intake air 20 flows into the intake filter chamber 4 from a position distant from the ground surface on the upper part of the cross wall 19. As a result, it is possible to prevent sand dust or snow on the outdoor surface from flowing into the intake filter chamber 4, and it is possible to provide the same function as that of the conventional high floor type filter chamber. As a result, the height of the floor surface 22 of the filter chamber from the ground surface can be reduced as compared with the conventional structure, so that the filter chamber 4 becomes compact and the cost at the time of construction can be reduced.

As shown in FIG. 3 etc., the surface of the weather louver 13 of the air intake of the intake filter chamber 4 and the primary filter 1 are shown.
4 Maintenance space for filter media replacement work between the mounting surface and the wall 16 of the intake filter chamber 2
3 is provided. In addition, maintenance space 23
A door 26 (see FIG. 2) for the entry of people from outside is installed. Further, a shutter opening 24 through which a transporting device 25 such as a truck can enter and exit is provided in a part of the air intake port surface of the intake filter chamber 4. Further, the maintenance space 23 has a space in which the transfer device 25 can be inserted.

Filter media (primary filters 14, 2
When the next filter 15) has reached the end of its life and needs to be replaced, the removal and unloading of the filter that has reached the end of the life and the carrying in and mounting of new filter media occur. In this case, the shutter opening 24 is opened to allow the carrier device 25 to enter the maintenance space 23 in the intake filter chamber,
The old and new filter media can be directly loaded on the bed of the transport device 25 and can be carried in and out.

As a result, the replacement work of the filter media can be carried out without being affected by the outdoor weather, and the work can be carried out efficiently and safely in a shorter time than the conventional unloading and loading work outdoors.

As shown in FIGS. 3 to 7, the maintenance space 23 has a filter medium (primary filter 1
4, an elevating device 30 such as a chain block or hoist for elevating the secondary filter 15) is installed on the ceiling monorail beam portion 31 (FIG. 5) of the intake filter chamber 4. In addition, the staircase corridor 32 is arranged outside the primary filter 14, and the corridor 33 is arranged between the primary filter 14 and the secondary filter 15, and the worker goes up and down the stairs in the filter chamber 4, You can walk through the corridor and change the filter media.

The first-order filter 14 and the second-order filter 15 on each floor are arranged in a stack 34 of 3 to 4 steps in the height direction (see FIG. 7). As a result, the filter can be directly loaded on the bed of the transport device 25 by the lifting device 30 provided in the filter chamber 4. Therefore, the filter replacement work can be carried out without being influenced by the outdoor weather, and can be carried out in a shorter time and more safely than the conventional method.

In the above embodiment, the primary filter 14 and the secondary filter 15 inside the primary filter 14 are doubly arranged, and the walkway 33 is provided between them. However, the present invention does not necessarily have a double structure. If the filter is a single filter, the one corresponding to the corridor 33 may be arranged outside the filter, for example.

[0032]

As is apparent from the above, according to the present invention, a compact layout of the intake filter chamber can be realized by assembling the filter chamber structure with a partial structure of the turbine housing building and the turbine base.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of a gas turbine intake filter facility according to the present invention.

FIG. 2 is an elevation view taken along the line II-II of FIG.

FIG. 3 is a plan sectional view taken along the line III-III of FIG.

FIG. 4 is a plan sectional view taken along the line IV-IV in FIG.

5 is a plan sectional view taken along the line VV of FIG.

6 is a plan sectional view taken along the line VI-VI of FIG.

FIG. 7 is a sectional view taken along the line VII-VII in FIGS.

FIG. 8 is a front view of an embodiment of a conventional gas turbine intake filter facility.

9 is an elevation view taken along the line IX-IX in FIG.

FIG. 10 is a perspective view showing only the intake filter chamber of FIG.

[Explanation of symbols]

1 ... Foundation stand, 2 ... Gas turbine device, 3 ... Intake duct,
4 ... Intake filter chamber, 5 ... Turbine storage building, 6 ... Turbine storage building indoor section, 7 ... Turbine storage building outdoor section, 8
… Pillars, 9… Beams, 10… Extensions of the turbine base, 11…
Steel ceiling, 12 ... Concrete floor, 13 ... Weather louver, 14 ... Primary filter, 15 ... Secondary filter, 1
6 ... Wall, 18 ... Outdoor surface height, 19 ... Overpass, 20 ...
Intake air, 22 ... Floor of filter chamber, 23 ... Maintenance space, 24 ... Shutter opening, 25 ... Conveying device,
26 ... Door, 30 ... Lifting device, 31 ... Ceiling monorail beam part, 32 ... Stairway, 33 ... Walkway, 40 ... Steel plate steel structure duct, 41 ... Intake filter chamber, 42 ... Filter, 4
3 ... upstream side, 44 ... downstream side, 50 ... exhaust duct, L ... gas turbine device axial distance.

Claims (4)

[Claims] 1. An intake filter facility having an air passage structure for taking in air supplied to a gas turbine and suppressing passage of foreign matters in the air, wherein the gas turbine has a turbine housing having columns, beams and walls. A gas turbine intake filter facility installed in a building, wherein the air passage structure is supported and configured by a part of columns, beams and walls of the turbine housing building. 2. The gas turbine intake filter facility according to claim 1, wherein an outer structure including a weather louver that allows air to pass through while suppressing the passage of rainwater, and an outer structure that is provided inside the outer structure and that passes through the weather louver. An inner structure including a replaceable filter that suppresses the passage of foreign matter in the air through the air, and the outer structure is provided with an opening / closing mechanism through which a transport device that transports the filter can pass. A gas turbine intake filter facility, characterized in that a space is provided between the structure and the inner structure for the transfer device. 3. The gas turbine intake filter equipment according to claim 1, wherein an outer structure including a weather louver that allows rainwater to pass while allowing air to pass therethrough, and the weather louver provided inside the outer structure. The inner structure including a replaceable filter that suppresses the passage of foreign matter in the air through the air that has passed through, and the lift that is provided between the outer structure and the inner structure and that can be used during the work of replacing the filter. At least one of a device and stairs, and a gas turbine intake filter facility. 4. The gas turbine intake filter facility according to claim 1, wherein a floor surface of the air passage structure is substantially the same as a ground floor height of the turbine storage building. A gas turbine intake filter facility, characterized in that a cross wall raised from the height of the ground floor of the turbine housing building is provided at the air intake of the air passage structure.