WO2015178449A1 - 吸気フィルタ装置、吸気フィルタ装置のフィルタ交換方法、及びガスタービン - Google Patents

吸気フィルタ装置、吸気フィルタ装置のフィルタ交換方法、及びガスタービン Download PDF

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Publication number
WO2015178449A1
WO2015178449A1 PCT/JP2015/064589 JP2015064589W WO2015178449A1 WO 2015178449 A1 WO2015178449 A1 WO 2015178449A1 JP 2015064589 W JP2015064589 W JP 2015064589W WO 2015178449 A1 WO2015178449 A1 WO 2015178449A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
intake
closing plate
filter material
filter device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2015/064589
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
青田　豊誠
英司 内藤
片山　博幸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Power Ltd
Original Assignee
Mitsubishi Hitachi Power Systems Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Hitachi Power Systems Ltd filed Critical Mitsubishi Hitachi Power Systems Ltd
Priority to CN201580026231.2A priority Critical patent/CN106457105B/zh
Priority to US15/307,190 priority patent/US10226726B2/en
Priority to KR1020167032046A priority patent/KR101923795B1/ko
Priority to DE112015002426.3T priority patent/DE112015002426B4/de
Publication of WO2015178449A1 publication Critical patent/WO2015178449A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002—Casings; Housings; Frame constructions
    • B01D46/0004—Details of removable closures, lids, caps or filter heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002—Casings; Housings; Frame constructions
    • B01D46/0005—Mounting of filtering elements within casings, housings or frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411—Filter cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/58—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/88—Replacing filter elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
    • F02C7/05—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles
    • F02C7/052—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles with dust-separation devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
    • F02C7/05—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles
    • F02C7/055—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles with intake grids, screens or guards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2265/02—Non-permanent measures for connecting different parts of the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
    • B01D2279/60—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for the intake of internal combustion engines or turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines

Definitions

  • the present invention relates to an intake filter device, a filter replacement method for the intake filter device, and a gas turbine including the intake filter device.
  • the gas turbine includes a compressor that sucks and compresses air, a combustor that burns fuel in the compressed air to generate combustion gas, and a turbine that is driven by high-temperature and high-pressure combustion gas.
  • a compressor that sucks and compresses air
  • a combustor that burns fuel in the compressed air to generate combustion gas
  • a turbine that is driven by high-temperature and high-pressure combustion gas.
  • the gas turbine includes an intake filter device for removing dust contained in the atmosphere.
  • Such an intake filter device is configured by combining a single or a plurality of filter materials. When the gas turbine is operated, if such a filter material is clogged or the like, the intake performance deteriorates. Therefore, it is important to perform a regular cleaning operation or replacement operation.
  • Patent Document 1 the structure disclosed in Patent Document 1 is known as a structure for smoothly exchanging the filter material during operation.
  • the technique described in Patent Document 1 discloses an example in which an air shielding plate is provided on the downstream side of the filter device, and moving means for opening and closing the air shielding plate in the vertical direction using an overhead crane or the like is disclosed.
  • Patent Document 1 requires a large device. Moreover, although the sealing structure of an air shielding board becomes a problem, the specific structure is not disclosed.
  • the present invention has been made in consideration of such circumstances, and an intake filter device capable of easily replacing a filter material even during operation of a gas turbine, a filter replacement method for an intake filter device, And it aims at providing a gas turbine.
  • An intake filter device is an intake filter device in which a filter material is disposed on an intake path of a gas turbine, wherein the filter material is in a direction in which fluid flows in the intake path.
  • a frame that is inserted from the upstream side and supports the filter material, and a locking plate for locking a closing plate that is attached to the downstream side of the frame body and closes the downstream side of the filter material Part.
  • the locking portion is movable in the direction intersecting the direction in which the fluid flows in the intake path. You may have a guide member to support.
  • the closing plate can be stably held by the guide member even during operation of the gas turbine.
  • the closing plate may be moved in a direction intersecting with the fluid flowing direction. In other words, the closing plate can be disposed without requiring a large force even when the fluid is flowing through the intake path.
  • the guide member of the intake filter device is formed by a set of guide members disposed on both sides with the filter material interposed therebetween,
  • the guide member may be formed with a groove portion that can receive the closing plate, and openings of the groove portion face each other.
  • the intake filter device may include a closing plate attached to the frame body via the locking portion.
  • the flow of fluid can be blocked by the closing plate, so that the differential pressure (pressure difference) acting on the filter material to be replaced can be reduced. Therefore, the filter material can be exchanged even during operation of the gas turbine.
  • the frame of the intake filter device may include a plate-shaped tube plate, and the filter material may be supported by the tube plate.
  • the filter material can be easily replaced even during operation of the gas turbine.
  • the intake filter device includes a fixture that removably fixes the closing plate to the frame body via the guide member. You may have.
  • the fixture can firmly fix the closing plate to the frame body, and the closing plate substantially seals the downstream surface of the frame body. Therefore, the flow of fluid can be blocked more effectively, and the pressure difference (differential pressure) acting on the filter material to be replaced can be further reduced.
  • the intake filter device according to any one of the first to sixth aspects is configured such that the fluid flows from below the frame body and from the downstream side of the frame body. You may further provide the deck part extended toward the direction to do.
  • the operator can easily perform maintenance work such as disposing the above-described closing plate on the downstream side of the frame.
  • the intake filter device is a mesh provided on the intake path at a downstream side of the filter material. You may have a fence of shape.
  • the intake filter device has a plurality of filter materials, and the plurality of filter materials are arranged in the intake path. It is arranged in series in the direction in which the fluid flows, and the closing plate may be arranged on the downstream side of the filter material that is the most downstream in the direction in which the fluid flows among the plurality of filter materials.
  • the filter material can be replaced only by providing a closing plate on the most downstream filter material.
  • the plurality of guide members are arranged along the vertical direction and are adjacent to each other. May be different from each other in the direction in which the fluid flows.
  • the guide members adjacent to each other have different dimensions in the direction in which the fluid flows. Therefore, the closing plates inserted into these guide members do not interfere with each other. Thereby, the closing plate of an adjacent filter material can be easily attached or detached.
  • the gas turbine includes the intake filter device described in any one of the first to tenth aspects.
  • a filter replacement method for an intake filter device is a filter replacement method for an intake filter device in which a filter material is disposed on an intake path of a gas turbine, A closing plate disposing step of disposing a closing plate that closes a downstream surface of the replacement target filter member disposed in the body, and the replacement target filter member including the closing plate from the frame to the intake path.
  • a removal step of removing the filter material toward the upstream side an attachment step of attaching a replacement filter material from the upstream side in the intake path to the frame body from which the filter material to be exchanged has been removed by the removal step, and the attachment step And a closing plate removing step of removing the closing plate from the frame body to which the replacement filter material is attached.
  • the flow of the fluid can be stopped by the closing plate, and the filter material can be replaced more easily.
  • the intake path is arranged downstream of the filter material to be replaced.
  • the downstream surface of the filter material may be blocked by sliding the closing plate in a direction that intersects the direction in which the fluid flows.
  • the closing plate can be disposed without requiring a large force even when the fluid is flowing through the intake path.
  • the intake filter device has a plurality of filter materials.
  • the plurality of filter materials are arranged in series in a direction in which the fluid flows in the intake passage, and in the closing plate arrangement step, the downstream side of the plurality of filter materials in the direction in which the fluid flows.
  • the closing plate may be arranged on the downstream side of the filter.
  • the filter material can be simply and without leaking from the space containing the filter material being replaced. Exchanges can be made.
  • FIG. 5 is a mounting cross-sectional view of the filter material according to the first embodiment of the present invention (IV-IV line in FIG. 4). It is explanatory drawing which shows the process of arrange
  • FIG. 10 is a structural view around the filter material in the width direction according to the second embodiment of the present invention (VV line in FIG. 9). It is a filter structure figure (the B section details of Drawing 10) concerning the second embodiment of the present invention. It is the top view (VI-VI line of FIG. 10) which looked at the closing board of the filter material which concerns on 2nd embodiment of this invention from the downstream.
  • FIG. 13 is a vertical filter structure diagram (line VII-VII in FIG. 12) according to the second embodiment of the present invention.
  • a gas turbine 70 includes a compressor 71 that sucks and compresses air, a combustor 72 that burns fuel in the compressed air to generate combustion gas, and high-temperature and high-pressure combustion. And a turbine 73 driven by gas.
  • the gas turbine 70 further includes an intake filter device 90.
  • the intake filter device 90 removes foreign matter from the air as the working fluid and supplies the air to the compressor 71.
  • the intake filter device 90 includes a building frame 92 that forms an intake passage, a support structure 91 that supports the building frame 92 at a position spaced upward from the ground surface, and a plurality of filter assemblies 1. It has.
  • the building frame 92 includes stairs and entrances for entering and exiting workers and carrying in and out of articles on the outside and inside.
  • the building frame 92 is configured as a three-story building. That is, the first floor portion is provided immediately above the support structure 91, and the second floor portion and the third floor portion are sequentially provided thereon. Note that the three-story structure of the building frame 92 is an example, and the intake filter device 90 may be placed on the ground, or may have any number of stories.
  • a filter assembly 1 is provided inside each floor of the building frame 92.
  • the intake filter device 90 and the compressor 71 are connected to each other by an intake duct 80.
  • the air that has circulated through the filter assembly 1 installed in the building frame 92 circulates in the intake duct 80 and is supplied to the gas turbine 70.
  • FIG. 2 is a schematic cross-sectional view showing the II-II cross section of the intake filter device 90 in FIG. Moreover, the arrow in FIG. 2 represents the direction through which the fluid flows in the filter assembly 1.
  • the fluid flowing side is referred to as the upstream side
  • the direction in which the fluid flows is referred to as the downstream side
  • a direction along the direction in which the fluid flows is referred to as an upstream / downstream direction.
  • the filter assembly 1 serves as an intake path for supplying fluid to the gas turbine 70.
  • the filter assembly 1 provided for each floor includes a plurality of filter materials 10 for filtering foreign substances from the sucked fluid, and a filter provided on the downstream side of the filter material 10 during operation.
  • a closing plate 20 that blocks the flow of fluid in the upstream and downstream of the material 10, a frame body 30 for supporting the filter material 10 and the closing plate 20, and a fixing member for attaching the filter material 10 to the frame body 30 33 and a guide member 60 (closing plate locking portion) for fixing the closing plate 20 to the frame 30.
  • the filter material 10 is provided on the upstream side, and is provided so as to be in contact with the prefilter material 10A for filtering dust having a large particle diameter from the sucked fluid and the downstream surface of the prefilter material 10A. And a main filter material 10B for filtering dust having a relatively small particle diameter.
  • the filter material 10 is formed of a nonwoven fabric or the like having a thin wire diameter, and is also called a panel filter.
  • the filter material 10 is formed by connecting a pre-filter material 10A and a main filter material 10B in series, and the outer surface of the filter excluding the upstream side and the downstream side is surrounded by a filter casing 11.
  • the prefilter material 10A As the prefilter material 10A, as shown in FIG. 4, a member formed in a corrugated plate shape is mainly used.
  • the upstream side surface and the downstream side surface of the prefilter material 10A communicate with each other so that fluid flows, and a filter medium 12 formed of a nonwoven fabric or the like capable of capturing dust is disposed on each surface. .
  • the main filter material 10B is a filter material fixed to the downstream surface of the prefilter material 10A.
  • the upstream surface and the downstream surface are in communication with each other so that fluid flows.
  • a filter medium 12 is disposed inside the main filter material 10B.
  • the size in the upstream and downstream direction of the main filter material 10B is formed larger than that of the prefilter material 10A.
  • the main filter material 10B is a member for capturing dust or the like having a relatively small particle diameter that could not be captured by the prefilter material 10A. That is, as the filter medium 12 of the main filter material 10B, a non-woven fabric having a finer particle diameter and a higher particle collection efficiency than the filter medium 12 included in the prefilter material 10A is used.
  • a so-called HEPA filter High Efficiency Particulate Filter
  • a quasi-HEPA filter is preferably used.
  • the closing plate 20 is a rectangular plate-like member, and closes the surface on the downstream side of the main filter material 10 ⁇ / b> B during maintenance work of the intake filter device 90. Is provided to stop the flow in the upstream / downstream direction. On the downstream surface of the closing plate 20, a grip portion 21 is provided for the operator W to grip and transport, install, etc. by hand.
  • the frame body 30 is arranged along the vertical direction (vertical direction) in units of floors in the building frame 92.
  • the uppermost part and the lowermost part of the frame body 30 are fixed to the ceiling part and the floor surface of each floor, and the filter material 10 is supported by the building frame 92 via the frame body 30.
  • the frame body 30 is fixed to the plurality of horizontal girders 31 extending in the vertical direction, the plurality of horizontal girders 32 extending in the width direction, and holding the filter member and holding the filter member.
  • a fixing member 33 for preventing falling.
  • the vertical beam 31 and the horizontal beam 32 are arranged so as to be orthogonal to each other.
  • a region formed inside a pair of vertical beams 31 adjacent in the width direction and a pair of horizontal beams 32 adjacent in the vertical direction is a filter housing portion 40 for housing one filter material 10 described above. ing.
  • the filter material 10 is inserted into the filter housing portion 40 from the upstream side. Further, the filter material 10 accommodated in the filter accommodating portion 40 is supported by the pair of longitudinal girders 31 and transverse girders 32 so as not to fall off from the vertical direction and the width direction. Further, as shown in FIGS. 2 and 3, the frame body 30 is configured to hold four filter members 10 in the vertical direction and in the width direction that is a direction intersecting the vertical direction. Yes.
  • the number of attachments of the above-mentioned filter material 10 is an example, Comprising: It is not limited to this number.
  • the fixing member 33 abuts on the peripheral edge of the filter material 10 to prevent the filter material 10 from dropping from the filter housing portion 40 to the upstream side. That is, as shown in FIGS. 4 and 5, the fixing member 33 includes a partition plate 33 ⁇ / b> A fixed to the stringer 31 and a fixing member 33 ⁇ / b> B fixed to the partition plate 33 ⁇ / b> A.
  • the partition plate 33A is a member that partitions between adjacent filter materials in the width direction.
  • the fixing tool 33B is a substantially L-shaped member, one of which is detachably attached to the partition plate, and the other is extended to the upstream side and held so as to hold the filter material 10.
  • the filter material 10 is supported by the stringer 31 via the partition plate 33 ⁇ / b> A and the fixture 33 ⁇ / b> B, and faces the downstream end of the filter material 10 and the upstream side of the stringer 31 and the transverse beam 32.
  • a sealing material 37 is provided between the outer surface.
  • the sealing material 37 is provided on the entire outer periphery of the downstream end surface (downstream filter surface 41) of the filter casing 11, and the air flowing in the filter device bypasses the filter material 10, and the filter casing 11 and the frame body 30. It is prevented from flowing out to the downstream deck portion 50 from the gap between the (vertical beam 31 and horizontal beam 32).
  • the downstream surface of the frame 30 forms a downstream filter surface 41 from which the downstream surface of the filter material 10 is exposed.
  • the dimension of the above-mentioned closing plate 20 is set so that it may become a little larger than the dimension of the downstream filter surface 41 in the frame 30 mentioned later.
  • guide members 60 for supporting the closing plate from above and below are provided in the vicinity of the respective edges in the up and down direction of the downstream filter surface 41.
  • the guide member 60 includes a first support body 34 and a second support body 35. The first support 34 is provided above the downstream filter surface 41, and the second support 35 is provided below the downstream filter surface 41.
  • the pair of guide members 60 including the first support body 34 and the second support body 35 are attached to the attachment surface (frame body 30) so that the cross section is an inverted L shape, and the filter housing portion 40 is attached. They are arranged as a set of members extending in the width direction in a direction orthogonal to the upstream / downstream direction with the (filter material 10) interposed therebetween. Grooves 34 ⁇ / b> D and 35 ⁇ / b> D capable of receiving the end edge of the closing plate 20 are formed between the guide member 60 and the attachment surface (frame body 30). The groove 34D of the first support 34 and the groove 35D of the second support 35 face each other.
  • the cross section of the first support 34 in the direction orthogonal to the extending direction has a substantially inverted L shape. Further, the first support 34 has an extension dimension that is slightly larger than the dimension of the downstream filter surface 41 in the width direction.
  • one plate-like portion extending in the upstream / downstream direction forms a support surface 34A.
  • the other plate-like portion extending downward from the downstream end of the support surface 34A forms a locking surface 34B.
  • screw holes 34C through which a butterfly screw 36 (fixing tool) described later is inserted are formed.
  • the second support 35 has a shape symmetrical with the first support 34 in the vertical direction. That is, the second support 35 has a support surface 35A extending in the upstream / downstream direction and a locking surface 35B extending upward from the downstream end of the support surface 35A.
  • screw holes 35C through which the thumbscrews 36 are inserted are formed in the vicinity of both end portions in the width direction of the locking surface 35B.
  • Grooves 34D and 35D are formed between the locking surfaces 34B and 35B and the mounting surface (frame body 30), and the support surfaces 34A and 35A form the bottom surfaces of the grooves 34D and 35D.
  • the closing plate 20 is fixed to the frame body 30 by the first support body 34 and the second support body 35 thus formed.
  • the intake filter device 90 is in a state in which the closing plate 20 is removed.
  • the closing plate 20 is attached to the frame body 30 (vertical beam 31 and horizontal beam 32) via the first support member 34 and the second support member 35. That is, when the filter material 10 is replaced during the operation of the gas turbine, the pair of guide members 60 including the first support body 34 and the second support body 35 is a closing plate for attaching the closing plate 20 to the frame body 30. It becomes a locking part for use.
  • a fence F is provided at a position downstream of the filter assembly 1 and at a predetermined distance from the filter assembly 1.
  • the fence F is a member having a plurality of apertures communicated in the upstream and downstream directions on the surface in a mesh shape.
  • a downstream deck unit 50 is provided between the filter assembly 1 and the fence F and below the filter assembly 1 for the operator W to pass and perform maintenance work.
  • the predetermined distance referred to here is a distance that can sufficiently secure a space for the worker W to perform work or the like on the downstream deck portion 50, and is a dimension that is appropriately selected according to the design.
  • an upstream deck portion 51 provided on the same plane in the height direction as the downstream deck portion 50 is provided on the upstream side of the filter assembly 1.
  • the filter material 10 is replaced by the first worker W1 who replaces the filter material 10 on the upstream side of the filter assembly 1 and the installation of the closing plate 20 on the downstream side.
  • the second worker W2 who performs the removal or the like is assumed to be performed.
  • the gas turbine 70 is in an operating state throughout the replacement work. That is, the fluid is flowing from upstream to downstream in the upstream and downstream of the filter assembly 1.
  • the first worker W1 prepares for work on the upstream deck unit 51, and the second worker W2 prepares for work on the downstream deck unit 50.
  • the closing plate arrangement process proceeds as follows. As shown in FIGS. 3 and 6, first, in the downstream deck portion 50, the second worker W ⁇ b> 2 from the one end of the first support 34 and the second support 35 in the width direction of the closing plate 20. One of the edges is inserted along the grooves 34D and 35D. More specifically, gaps (grooves) formed between the locking surface 34B of the first support 34 and the downstream filter surface 41, and between the locking surface 35B of the second support 35 and the downstream filter surface 41, respectively. 34D, 35D) are inserted so that the end edge of the closing plate 20 is slipped. Subsequently, the closing plate 20 is inserted until the closing plate 20 covers the front surface of the downstream filter surface 41.
  • the closing plate 20 is supported by the first support body 34 (guide member 60) and the second support body 35 (guide member 60) so as to be movable in a direction crossing the direction in which the fluid flows.
  • the thumbscrew 36 is screwed into the screw holes 34 ⁇ / b> C and 35 ⁇ / b> C of the first support 34 and the second support 35.
  • the closing plate 20 has a slight gap between it and the downstream filter surface 41.
  • the above-described wing screw 36 is further screwed in until the closing plate 20 contacts the downstream filter surface 41 without a gap.
  • the closing plate arrangement process is completed.
  • the first worker W1 frames the filter material 10 to be replaced, that is, the filter material 10 on which the closing plate 20 is arranged in the above-described closing plate arrangement step. Remove from 30. More specifically, the first worker W1 removes the filter material 10 to be replaced by sliding it from the frame body 30 toward the upstream side of the aforementioned intake path. Assuming that the gas turbine 70 is in an operating state, the fluid continues to flow from the upstream side of the filter assembly 1 toward the downstream side, and the closing plate 20 is not provided, the filter material is as follows.
  • a pressure difference acts on the filter material 10 in a direction away from itself (that is, a direction toward the downstream side) when viewed from the first worker W1 side. Therefore, when removing the filter material 10 toward the upstream side, a force exceeding the pressure difference (differential pressure) must be applied to the filter material 10.
  • the downstream filter surface 41 of the filter material 10 is closed by the closing plate 20, the fluid in the intake path does not flow through the filter material 10. Therefore, as viewed from the first worker W1, the force due to the pressure difference (differential pressure) as described above does not act on the filter material 10 and can be easily removed upstream. Thus, the removal process for removing the filter material 10 is completed.
  • the new filter material 10 for replacement is attached to the frame 30 (filter housing portion 40) after the filter material 10 to be replaced is removed by the above-described removal process.
  • the filter material 10 is inserted into the filter housing 40 so as to be slid from the upstream side of the filter assembly 1.
  • the attachment process for attaching the replacement filter material is completed.
  • the second worker W2 removes the closing plate 20 from the downstream filter surface 41 of the filter housing portion 40 in which the above-described attachment process has been completed.
  • a procedure opposite to the above-described closing plate arranging step is performed.
  • the thumbscrew 36 that fixes the closing plate 20 to the frame 30 is loosened.
  • the closing plate 20 is slightly separated from the downstream filter surface 41 and can be moved in the width direction.
  • the second operator W2 removes the closing plate 20 from the first support 34 and the second support 35 by sliding the closing plate 20 in one of the width directions.
  • the direction in which the closing plate 20 is removed from the width direction is determined by the positional relationship between the filter housing 40 and the surrounding structure and the convenience of the operator. It is not limited to the direction.
  • the closing plate removing step is completed, and with this, the replacement (exchange method) of the filter material 10 in the intake filter device 90 according to the present embodiment is completed.
  • the intake filter device 90 can block the flow of fluid by the closing plate 20, even when the filter material 10 is being replaced, the foreign matter is present in the compressor 71 on the downstream side. It is possible to suppress the inflow to etc. Moreover, the effect
  • the filter material 10 can be replaced during the operation of the gas turbine 70. Therefore, after the filter material 10 is used until just before its useful life expires, a new filter material is sequentially added. 10 can be exchanged.
  • the closing plate 20 is supported by the guide member 60 so as to be able to move in the direction intersecting the direction in which the fluid flows on the intake path. According to such a configuration, when the closing plate 20 is brought close to the frame body 30, it may be moved in a direction intersecting with the direction in which the fluid flows. Therefore, the closing plate can be arranged without requiring a large force even in a state where the fluid is circulating on the intake path. Thereby, even if it is the state which operated the gas turbine 70, the replacement
  • the intake filter device 90 includes a fixing tool (wing screw 36) that detachably fixes the closing plate 20 to the frame body 30 via the guide member 60. Therefore, the thumbscrew 36 can firmly fix the closing plate 20 to the frame 30. As a result, the closing plate 20 generally seals the downstream filter surface 41 of the frame 30. Therefore, the flow of fluid can be blocked more effectively, and the pressure difference (differential pressure) acting on the filter material 10 to be replaced can be further reduced. In addition, the movement in the direction in which the closing plate 20 is brought close to the frame body 30 is performed only by tightening the thumbscrew 36. Therefore, the force required when arranging the closing plate 20 on the frame 30 is reduced.
  • wing screw 36 wing screw 36
  • the intake filter device 90 has a downstream deck portion 50 on the downstream side of the filter material 10. According to such a configuration, the operator W can easily reach the downstream side of the filter material 10. Therefore, the operator W can easily perform maintenance work such as disposing the closing plate 20 on the downstream side of the frame body 30.
  • the intake filter device 90 has a fence F provided on the downstream side of the filter material 10. According to such a configuration, foreign matter such as screws generated in the work process can be suppressed by the fence F from flowing into the compressor 71 downstream from the intake path.
  • the intake filter device 90 has a plurality of filter materials 10 arranged in series along the direction in which the fluid flows, and the filter material 10 provided with the closing plate 20 has the flow of the fluid. It is arrange
  • the pressure difference (difference) acting on the filter material 10 to be replaced is provided by providing the closing plate 20 for the most downstream filter material 10 in which the largest differential pressure is generated in the upstream and downstream. Pressure) can be more effectively reduced.
  • the action of the pressure difference can be reduced more effectively than in the case where the closing plate 20 is arranged with respect to the filter material 10 located on the upstream side.
  • the filter replacement method in the intake filter device 90 even when the fluid is circulating on the intake path, the flow of the fluid is stopped by the closing plate 20 and easier.
  • the filter material 10 can be replaced.
  • the closing plate 20 when the closing plate 20 is disposed, it is not necessary to move the closing plate 20 in a direction opposite to the direction in which the fluid flows. In other words, the closing plate 20 can be disposed without requiring a large force even when the fluid is flowing through the intake path.
  • a safety handrail SG may be provided on the downstream side adjacent to the fence F provided on the downstream end of the downstream deck unit 50. By providing the safety handrail SG, the worker W2 can be prevented from falling from the downstream deck portion 50.
  • the pre-filter 10A and the main filter 10B are provided in contact with each other.
  • the configuration of the filter material 10 is not limited to this, and the pre-filter 10A and the main filter 10B may be spaced apart along the direction in which the fluid flows.
  • a pulse filter means the filter provided with the backwashing function which injects compressed air to a filter inside instantaneously in the shape of a pulse, and wipes off the dust adhering to a filter outer surface.
  • FIG. 8 shows a schematic side view of an intake filter device using a pulse filter.
  • the intake filter device 90 is housed in a three-story building frame 92 and is supported by a support structure 91 as in the first embodiment.
  • the example shown in FIG. 8 is an example of a three-story building frame 92, but is not limited to this example.
  • the frame 130 is arrange
  • the uppermost part and the lowermost part of the frame body 130 are fixed to the ceiling part and the floor surface of each floor, and the filter material 100 is supported by the building frame 92 via the frame body 130.
  • FIG. 9 is a perspective view showing a part of the intake filter device 90 according to one embodiment of the second embodiment.
  • the filter housing portion 140 in which the filter material 100 is disposed includes a plurality of vertical beams 31 extending in the vertical direction (vertical direction) constituting the frame body 130, a plurality of horizontal beams 32 extending in the width direction, and a filter material. And a tube plate 131 supporting 100. That is, an opening vacated in the upstream / downstream direction is closed in the filter accommodating portion 140 that forms a rectangular space sandwiched between the vertical girder 31 extending in the vertical direction and the horizontal girder 32 extending in the width direction. A plate-shaped tube sheet 131 is attached to the substrate.
  • the vertical girder 31 and the horizontal girder 32 may be flat plate materials or may be shaped steel such as H-shaped steel or L-shaped steel.
  • the tube plate 131 and the vertical girder 31 and the horizontal girder 32 are fixed by welding or the like, and have a structure such that no air leaks from the upstream deck portion 51 side to the downstream deck portion 50 side.
  • a large number of cylindrical filter materials 100 are arranged along the upstream and downstream directions and fixed to the tube plate 131.
  • a tube plate 131 to which the filter material 100 is attached is provided with concentric openings 139 in the upstream and downstream directions with respect to the filter material 100.
  • the filter material 100 has a cylindrical shape, an inner porous plate 100A arranged on the upstream side, an outer porous plate 100B arranged on the downstream side of the inner porous plate 100A so as to cover the inner porous plate 100A, and an inner porous plate
  • the filter medium 112 is filled in the space between the plate 100A and the outer perforated plate 100B.
  • the inner perforated plate 100A and the outer perforated plate 100B are members formed by cylindrically forming a perforated plate having a large number of through-holes 101 on the surface, and air can flow therethrough.
  • the filter medium 112 is configured by forming a corrugated nonwoven fabric or the like into a cylindrical shape.
  • the filter medium 112 captures dust and dirt in the air.
  • the filter material 100 including the inner porous plate 100A, the outer porous plate 100B, and the filter material 112 is integrally formed as a set of filter elements, and is attached or removed as a single unit.
  • the filter material 100 is attached to the tube plate 131 by a fixing member 133.
  • the fixing member 133 is provided at the upstream end of the mandrel 133A, a mandrel 133A for holding the filter material 100 from the inside of the filter material 100, a fastener 133B for immobilizing the filter material 100 to the tube plate 131 via the mandrel 133A.
  • a lid member 133C a lid member 133C.
  • the mandrel 133A has a shape in which a plurality of rod-shaped members are bundled, the upstream end is bundled and unified, and the other end extends toward the downstream side in the direction in which the respective rod-shaped members are separated from each other, Has a flange portion 133AF.
  • a mandrel 133A having a flange portion 133AF is inserted into the opening 139 from the upstream side, and the flange portion 133AF is fixed to the tube plate 131 by welding or the like in the vicinity of the inner peripheral edge of the opening 139.
  • the mandrel 133A is formed of three rod-shaped members.
  • the three mandrels 133A are arranged on the outer periphery of the filter material 100 with an interval of approximately 120 ° C.
  • the mandrel 133A reinforces the filter material 100 so that the inner porous plate 100A is not recessed inward in the radial direction. Note that at least three mandrels 133A may be provided.
  • the mandrel 133A is fixed to the tube plate 131 by welding or the like at the end flange portion 133AF. Further, a sealing material 137 is inserted between the filter material 100 and the tube plate 131. Since the sealing material 137 is arranged over the entire circumference of the contact surface between the filter material 100 and the tube plate 131, the sealing material 137 is moved in the upstream / downstream direction by tightening the fastener 133B attached to the upstream end of the mandrel 133A. Is compressed. As a result, the sealing performance of the sealing material 137 is maintained, and the air supplied to the filter device 90 flows into the outer porous plate 100B without bypassing the filter material 100.
  • the air that has flowed into the filter device 90 enters the inside of the filter material 100 through a large number of through holes 101 provided in the outer porous plate 100B.
  • the air from which dust, dust, and the like have been removed by the filter medium 112 passes through the through hole 101 provided in the inner perforated plate 100B to the internal space of the filter medium 100, moves further downstream, and opens from the opening 139 to the downstream deck. It is discharged to the part 50 side.
  • the filter material 100 attached to the tube plate 131 has a cylindrical shape as a whole by forming an upstream portion in a cylindrical shape while a portion from the middle to the downstream side has a conical shape. I am doing.
  • the inner diameter of the downstream inner porous plate 100 ⁇ / b> A substantially matches the diameter of the opening 139 formed in the tube plate 131.
  • a cleaning nozzle 145 for backwashing the filter is installed on the deck unit 50 on the downstream side of the filter material 100.
  • the cleaning nozzle 145 has a predetermined position in the downstream direction from the filter material 100 so as not to hinder the attaching / detaching operation of the closing plate 120 at the same position in the vertical direction and width direction as the center of the hole of the opening 139 of each filter material 100. Arranged at a distance.
  • the compressed air supplied to the cleaning nozzle 145 is supplied via an air supply pipe 146.
  • the downstream configuration of the filter material 100 will be described. Similar to the first embodiment, in order to replace the filter material 100 during operation of the gas turbine, it is necessary to attach the closing plate 120 to the filter material 100 in advance. That is, as shown in FIGS. 10 and 12, guide members 160 that guide the closing plate 120 are arranged near the edges on both sides in the width direction with the filter material 100 (downstream filter surface 141) interposed therebetween. .
  • the guide member 160 includes a first support 134 and a second support 135 that are located on both sides in the width direction with the filter material 100 interposed therebetween.
  • the point which is fixed to the frame body 130 (tube sheet 131) by the fixing tool 136 which consists of a thumbscrew etc. is the structure similar to 1st embodiment.
  • the pair of guide members 160 (the first support body 134 and the second support body 135) are attached to the attachment surface (tube plate 131) so that the cross-section has an inverted L shape.
  • groove portions 134D and 135D capable of receiving the end edge of the closing plate 120 are formed.
  • the groove portions 134D and 135D face each other with the filter material 100 interposed therebetween.
  • a filler 142 such as packing is disposed between the tube plate 131 and the tube plate 131.
  • the closing plate 120 when attaching the closing plate 120 to the tube plate 131, the flange portion 133 AF of the fixing member 133 interferes, and the closing plate 120 cannot be brought into close contact with the tube plate 131. There may be a gap between them.
  • a filler 142 such as packing is disposed on the outer periphery of the back side of the closing plate 131 between the closing plate 120 and the tube plate 131. The By tightening the fixture 136, the closing plate 120 can be attached to the tube plate 131 via the filler 142. The filler 142 may be attached to the back side of the closing plate 120.
  • the guide member 160 when attaching the closing plate 120 to the filter member 100 arranged in the vertical direction (vertical direction) shown in FIG. 12 will be described.
  • the first holding body 134 and the second holding body 135 constituting the guide member 160 sandwich the filter material 100 therebetween. It arrange
  • the 1st holding body 134 and the 2nd holding body 135 are the same height (height from the surface of the tube sheet 131). If the closing plate 120 is inserted into the groove part 134D of the first holding body 134 or the groove part 135D of the second holding body 135, it interferes with the first holding body 134 or the second holding body 135 of the adjacent filter material 100. Therefore, there is a possibility that the closing plate 120 cannot be inserted.
  • the groove widths 134D and 135D of the first holding body 134 and the second holding body 135 are installed so as to have different groove widths. With such an arrangement, it can be inserted into the groove part 134D of the first support body 134 or the groove part 135D of the second support body 135 from the oblique direction indicated by the arrow, like the closing plate 120 indicated by the solid line.
  • the attachment structure and process of the filter material 100 to the frame plate 130 (tube plate 131) are different from those of the first embodiment. That is, except for the point that the removal process and the attachment process of the filter material 100 are different, the procedure such as the closing plate arranging step and the closing plate removing step is the same as that of the first embodiment.
  • the second worker W2 attaches the closing plate 120 to the guide member 160 (first support 134, second support 135) fixed to the frame plate 130 (tube plate 131).
  • the closing plate arranging step and the closing plate removing step for removing the closing plate 120 from the guide member 160 are the same as in the first embodiment.
  • the removal process and attachment process of the filter material 100 will be described below.
  • the fastener 133B attached to the upstream end of the mandrel 133A is removed.
  • the pair of filter materials 100 formed from the inner perforated plate 100A, the outer perforated plate 100B, and the filter medium 112 can be pulled out from the mandrel 133A to the upstream side and removed.
  • a new filter material 100 composed of the replacement inner porous plate 100A, outer porous plate 100B and filter material 112 is inserted into the mandrel 133A from the upstream side, and tightened with the fastener 133B.
  • the filter material 100 is attached to the tube plate 131, and the procedure of the other replacement method in which the attachment process of the filter material 100 is completed is the same as that of the first embodiment.
  • the filter member 100 can be easily removed and attached by attaching / detaching the fastener 133B of the fixing member 133 (mandrel 133A) fixed to the tube plate 131 by welding, the filter member 100 can be easily replaced.
  • the filter material 100 is described as being attached in the horizontal direction, but the filter material 100 may be attached in the vertical direction. That is, the structure which attaches the filter material 100 from the downward direction of the perpendicular direction with respect to the tube sheet 131 installed in the horizontal surface may be sufficient.
  • the fixing tool 36 for fixing the closing plate 20 to the guide member 60
  • the fixing tool 36 is not limited to this, and is designed and convenient. Various measures can be taken accordingly.
  • the filter materials 10 and 100 are replaced in the operation state of the gas turbine 70 has been described.
  • the filter materials 10 and 100 may be replaced while the gas turbine 70 is stopped.
  • the above-described intake filter device and the filter replacement method of the intake filter device can be applied to a gas turbine or the like as an example. According to the above configuration, even when the gas turbine is in operation, the filter material can be easily replaced without causing air leakage from the space in which the filter material being replaced is accommodated.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
PCT/JP2015/064589 2014-05-23 2015-05-21 吸気フィルタ装置、吸気フィルタ装置のフィルタ交換方法、及びガスタービン Ceased WO2015178449A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201580026231.2A CN106457105B (zh) 2014-05-23 2015-05-21 吸气过滤装置、吸气过滤装置的过滤器更换方法、以及燃气涡轮
US15/307,190 US10226726B2 (en) 2014-05-23 2015-05-21 Intake air filter device, filter replacement method of intake air filter device, and gas turbine
KR1020167032046A KR101923795B1 (ko) 2014-05-23 2015-05-21 흡기 필터 장치, 흡기 필터 장치의 필터 교환 방법, 및 가스 터빈
DE112015002426.3T DE112015002426B4 (de) 2014-05-23 2015-05-21 Eintragluftfiltervorrichtung, Filterersetzungsverfahren einer Eintragluftfiltervorrichtung und Verwendung einer Eintragluftfiltervorrichtung bei einer Gasturbine

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JP2014-107160 2014-05-23
JP2014107160A JP6460371B2 (ja) 2014-05-23 2014-05-23 吸気フィルタ装置、吸気フィルタ装置のフィルタ交換方法、及びガスタービン

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JP6663710B2 (ja) 2015-12-25 2020-03-13 三菱日立パワーシステムズ株式会社 フィルタ交換装置、フィルタ交換装置の制御方法、及びガスタービン設備
KR102223042B1 (ko) * 2016-06-21 2021-03-05 리볼버 26 인베스트먼트 코오포레이션 필터 프레임
JP6667481B2 (ja) * 2017-08-24 2020-03-18 三菱重工業株式会社 フィルタ装置
JP7105068B2 (ja) * 2018-01-31 2022-07-22 三菱重工業株式会社 フィルタユニット品質管理システム及びフィルタユニット品質管理方法
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CA3092865C (en) 2019-09-13 2023-07-04 Bj Energy Solutions, Llc Power sources and transmission networks for auxiliary equipment onboard hydraulic fracturing units and associated methods
US11002189B2 (en) * 2019-09-13 2021-05-11 Bj Energy Solutions, Llc Mobile gas turbine inlet air conditioning system and associated methods
CN111550815B (zh) * 2020-06-17 2022-07-15 东莞市红升环保设备有限公司 具有可快速更换滤材的催化燃烧装置
CN112302802A (zh) * 2020-11-13 2021-02-02 无锡华南钢结构环保有限公司 一种燃机用快捷更换的粒子空气过滤机构
CN113996125B (zh) * 2021-10-15 2022-11-22 湖北三江航天红林探控有限公司 一种用于高能燃发器的截面式过滤装置
CN117534149B (zh) * 2023-12-27 2024-08-27 上海勘测设计研究院有限公司 一种水利拦污栅栏的附着物清除装置
KR102702396B1 (ko) * 2024-02-06 2024-09-04 한국코엔주식회사 터보콤프레스용 리버스 에어 인테이크 필터
CN119656743B (zh) * 2025-02-14 2025-06-27 安徽科摩尔压缩机有限公司 一种便于滤网更换的空气压缩机过滤器

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JP2015221419A (ja) 2015-12-10
CN106457105A (zh) 2017-02-22
US20170050135A1 (en) 2017-02-23
DE112015002426B4 (de) 2021-10-28
KR20160143841A (ko) 2016-12-14
US10226726B2 (en) 2019-03-12
DE112015002426T5 (de) 2017-03-02
CN106457105B (zh) 2019-04-19
JP6460371B2 (ja) 2019-01-30
KR101923795B1 (ko) 2018-11-29

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