WO2014141936A1 - Conduite adiathermique pour un gaz à haute température - Google Patents

Conduite adiathermique pour un gaz à haute température Download PDF

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Publication number
WO2014141936A1
WO2014141936A1 PCT/JP2014/055381 JP2014055381W WO2014141936A1 WO 2014141936 A1 WO2014141936 A1 WO 2014141936A1 JP 2014055381 W JP2014055381 W JP 2014055381W WO 2014141936 A1 WO2014141936 A1 WO 2014141936A1
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WO
WIPO (PCT)
Prior art keywords
heat
lining member
temperature gas
heat insulating
insulating material
Prior art date
Application number
PCT/JP2014/055381
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English (en)
Japanese (ja)
Inventor
渡辺隆俊
水谷友好
Original Assignee
川崎重工業株式会社
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 川崎重工業株式会社 filed Critical 川崎重工業株式会社
Publication of WO2014141936A1 publication Critical patent/WO2014141936A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/30—Exhaust heads, chambers, or the like
    • 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
    • F02C7/24—Heat or noise insulation

Definitions

  • the present invention relates to a heat insulation duct for high-temperature gas, for example, disposed between a gas turbine and an exhaust heat boiler.
  • the exhaust duct of the gas turbine is made of a stainless steel plate or a molybdenum steel plate (SB material), and a heat insulating material is provided outside the plate material.
  • SB material molybdenum steel plate
  • a stretched so-called external heat retaining material is used.
  • external heat insulation it is necessary to perform insulation work on site (installation location). Specifically, in order to retighten the flange of the exhaust duct, leave it in a state where no heat insulating material is applied until the trial run, and after performing the tightening in a state where heat is applied during the trial run and stretch, I do.
  • the exhaust gas has a high internal pressure of 0.25 KpaG due to the pressure loss of the exhaust heat boiler, etc. and is a rotating flow at a high temperature, so the exhaust duct on the inlet side of the exhaust heat boiler There is a possibility that the weld will crack.
  • the exhaust duct material itself deteriorates due to the expansion and contraction load due to heat and the repeated load of residual stress.
  • hot cracking may occur. Then, such a weld crack, a high temperature crack, etc. were avoided by giving a castable (refractory material) and a ceramic heat insulating material inside the exhaust duct.
  • the internal heat insulation structure using ceramic heat insulating material is suitable for ducts through which rectified exhaust gas flows, ducts with sufficient internal area and low flow velocity exhaust gas, etc.
  • exhaust gas enters the gap between the stacked tile-like plates (plates configured to slide in consideration of thermal elongation) that hold down the ceramic heat insulating material. There is a fear. As a result, the plate may be deformed and peeled off, or the heat insulating material may be sucked up and scattered.
  • This invention was made in view of the said subject, and it aims at providing the heat insulation duct of the high temperature gas which can suppress a weld crack, a high temperature crack, peeling, etc., avoiding construction of a heat insulating material on-site. .
  • the hot gas insulation duct includes a metal plate lining member in which a casing forming a high temperature gas passage is exposed to the high temperature gas passage, and a metal plate outer member.
  • a locking piece that protrudes outward and is locked to the end surface of the heat insulating material is provided at the end of the lining member.
  • the casing forming the high temperature gas passage has the lining member exposed to the high temperature gas passage, the outer lining member exposed to the outside air, and the flexible heat insulating material interposed therebetween. Since it is constituted by so-called internal heat insulation, it is possible to construct the heat insulating material at the factory, and it is not necessary to install the heat insulating material and prevent rust on site. Moreover, since it is not necessary to apply a refractory material or a heat insulating material to the inside of the casing, they will not fall off or peel off. Further, since the outer member constituting the outer shell of the heat retaining duct is not exposed to the high temperature gas, it is possible to suppress the deterioration of the flange portion and the seal portion provided in the outer member and the occurrence of the hot crack.
  • the outer member is not exposed to the high temperature gas, it is not necessary to use an expensive heat-resistant metal such as a stainless steel plate or a molybdenum steel steel plate, and the heat insulation duct can be manufactured at a low cost as a whole. Furthermore, since the lining member is locked to the heat insulating material and connected to the outer lining member through the heat insulating material so as to be relatively movable, the thermal stress generated in the lining member can be suppressed, and the portion that contacts the high temperature gas Furthermore, the occurrence of weld cracks can be suppressed by eliminating the weld.
  • the lining member can be made to be relative to the lining member with a simple structure without providing a welding portion. It can be connected movably.
  • an inner portion of the locking piece of the lining member has a superposed portion that is bent and overlapped, and an outer portion of the locking piece is fixed to the outer lining member. According to this configuration, the thermal elongation of the lining member can be absorbed by the deformation of the overlapping portion.
  • the casing has a flat upper wall, a lower wall, and a pair of side walls connected to form the high-temperature gas passage having a rectangular cross section, and the lining member is formed on each of the walls. It is preferable to be connected to the outer member through a material so as to be relatively movable. According to this structure, since each said wall is flat form, manufacture becomes easy.
  • an inner portion of the locking piece of the lining member has a superposed portion that is bent and superposed, and the superposition is provided in a gap between adjacent walls. It is preferable that the part and the heat insulation buffer material located in the outer side are arrange
  • the pressing member can prevent the hot gas from directly hitting the heat-insulating buffer material and causing damage, and can hold the heat-insulating buffer material in an appropriate position.
  • the lining member is fastened to the outer lining member at an intermediate portion between opposing end portions.
  • the fastening to the inner side of the lining member due to thermal expansion can be effectively suppressed by fastening at the intermediate portion.
  • heat transfer to the outer member via the fastening member can be minimized by setting the fastening portion to one place in the intermediate portion.
  • this fastening can prevent the lining member from being greatly deformed inward by the thickness of the heat insulating material on the upper wall serving as the ceiling, or preventing the heat insulating material from shifting and moving downward.
  • FIG. 4 is a sectional view taken along line IV-IV in FIG. 2.
  • FIG. 7 is a sectional view taken along line VII-VII in FIG. 2. It is sectional drawing which expands and shows the VIII part of FIG. It is sectional drawing which expands and shows the IX part of FIG.
  • FIG. 1 shows a schematic configuration diagram of a cogeneration system using a gas turbine.
  • generated power is obtained by rotating the rotor of the generator G through the reduction gear R / G by the driving force of the gas turbine GT.
  • the gas turbine GT includes a compressor 2, a combustor 4, and a turbine 6.
  • An exhaust gas E discharged from the gas turbine GT is discharged to the outside through a high-temperature gas passage 8 that is an exhaust passage.
  • a heat insulation duct 10 for high-temperature gas constituting a part of the high-temperature gas passage 8 is connected to the exhaust gas outlet of the gas turbine GT, and an exhaust heat boiler 12 is connected to the downstream side of the heat insulation duct 10 to thereby provide an exhaust heat boiler.
  • An economizer 14 is connected to the downstream side of 12. The water supplied to the economizer 14 is preheated by the exhaust gas E, supplied to the exhaust heat boiler 12 and vaporized. The steam from the exhaust heat boiler 12 is used, for example, as an absorption refrigerator or a heat source for generating hot water.
  • the exhaust gas G that has been heat-recovered through the exhaust heat boiler 12 and the economizer 14 is released to the atmosphere through the exhaust duct 16.
  • the high temperature insulation duct 10 has a casing 18 that forms a part of the high temperature gas passage 8.
  • the casing 18 is formed by connecting a flat upper wall 20, a lower wall 22, and a pair of side walls 24, 24 to form a hot gas passage 8 having a rectangular cross section.
  • the hot gas passage 8 in the casing 18 has a passage area increasing toward the downstream.
  • a cylindrical inlet pipe 26 is connected to the upstream end of the casing 18 by welding, and a flange-shaped first flange 28 is fixed to the upstream end of the inlet pipe 26 by welding.
  • a plurality of bolt insertion holes are formed in the first flange 28 side by side in the circumferential direction.
  • a flange-like second flange 30 is fixed to the downstream end of the casing 18 by welding.
  • a plurality of bolt insertion holes are formed in the second flange 30 side by side in the circumferential direction.
  • the first flange 28 is connected to the exhaust gas outlet of the gas turbine GT shown in FIG. 2 and the second flange 30 is connected to the inlet of the boiler 14 using bolts (not shown).
  • the casing 18 includes a metal plate lining member 32 exposed to the high temperature gas passage 8, a metal plate lining member 34 exposed to the outside air, and a space therebetween. And a flexible heat insulating material 36 interposed therebetween.
  • the lining member 32 is made of a metal having high heat resistance such as a stainless steel plate or a molybdenum steel plate, and in this embodiment is made of SUS304 having a thickness of 2 mm.
  • the outer member 34 is made of an inexpensive general structural steel material, and in this embodiment is made of SS400 having a thickness of 6 mm. A rust preventive paint is applied to the outer surface of the outer member 34.
  • the heat insulating material 36 includes an innermost first heat insulating layer 38, an outer second heat insulating layer 40, and an outermost third heat insulating layer 42 on the outer side.
  • ceramic wool having high heat insulating properties is used for the first heat insulating layer 38
  • inexpensive rock wool is used for the second heat insulating layer 40 and the third heat insulating layer 42.
  • Locking pieces 44 projecting outward are formed at the end portions 32a forming the four sides of the lining member 32.
  • the lining member 32 is The outer member 34 is connected to the outer member 34 via the heat insulating material 36 so as to be relatively movable in a parallel direction.
  • the outer end 44a of the locking piece 44 is fixed to the outer member 34 by welding.
  • the locking piece 44 has a superposed part 50 in which a steel plate is bent and polymerized. Specifically, the end portion 32a of the lining member 32 is folded outward and then folded inward, and further folded outward to form a triple overlapping portion 50. The leading end of the overlapping portion 50 extends outward. Thus, a locking piece 44 is formed. Thereby, as shown by a two-dot chain line, even when the lining member 32 is thermally stretched, it is deformed so that the overlapping portion 50 is opened and the thermal elongation is absorbed.
  • the lining member 32 is fastened to the lining member 34 by a fastening member 52 at an intermediate portion 32 b between the facing end portions 32 a and 32 a.
  • a fastening member 52 is fastened to the lining member 34 by a fastening member 52 at an intermediate portion 32 b between the facing end portions 32 a and 32 a.
  • an opening 54 is formed in the intermediate portion 32 b of the lining member 32, and the entire headless head whose outer end is fixed to the lining member 34 by welding W is formed in this opening 54.
  • a screw bolt 58 is inserted.
  • the contact plates 56 are brought into contact with the inner side and the outer side of the lining member 32 so as to cover the inner end portion of the entire screw bolt 58.
  • the lining member 32 is fastened to the outer lining member 34 through the whole screw bolt 58 and the nuts 60, 60. That is, the full screw bolt 58 and the two nuts 60, 60 constitute the fastening member 52.
  • FIG. 7 shows a connecting portion between the lower wall 22 and the side wall 24.
  • the upper surface 22a of the lower wall 22 and the lower end surface 24a of the side wall 24 are opposed to each other via the first gap S1.
  • An extension 64 extending downward is formed on the outer member 34 of the side wall 24.
  • the extension portion 64 extends outwardly from the outer end surface 22b of the lower wall 22 and is connected to the outer member 34 of the lower wall 22 by welding.
  • This connecting portion is reinforced by welding of the reinforcing plate 66.
  • a second gap S2 is formed between the extension portion 64 and the outer end surface 22b of the lower wall 22, and the second gap S2 communicates with the first gap S1.
  • the overlapping portion 50 of the side wall 24 is disposed in the first gap S1, and the overlapping portion 50 of the lower wall 22 is disposed in the second gap S2. Further, the heat insulating cushioning material 68 is disposed on the entire second gap S2 and on the outer side (right side in FIG. 7) of the overlapping portion 50 of the side wall 24 in the first gap S1.
  • the heat insulating buffer material 68 is, for example, a ceramic blanket.
  • a pressing member 70 is disposed inside the heat insulating cushioning material 68 outside the overlapping portion 50 of the side wall 24 in the first gap S1.
  • the holding member 70 is configured by bending a spring steel plate into a V shape.
  • the holding member 70 is elastically fitted inside the heat insulating cushioning material 68 in the first gap S1 to block the high temperature gas from directly hitting the heat insulating cushioning material 68 and to regulate the position of the heat insulating cushioning material 68. Yes.
  • the holding member 70 is prevented from coming out into the high temperature gas passage 8 by the overlapping portion 50 of the side wall 24.
  • FIG. 7 shows a connecting portion between the lower wall 22 and the side wall 24, but the connecting portion between other adjacent walls has the same structure.
  • the casing 18 has a structure in which the lining member 32 and the outer lining member 34 do not come into contact with each other over a wide area.
  • the temperature of the exhaust gas E exceeds 550 ° C. in the high temperature gas passage 8, but the surface temperature of the outer member 34 exposed to the outside air is kept below 70 ° C.
  • FIG. 8 shows a connecting portion between the lower wall 22 of the casing 18 and the inlet pipe 26.
  • the inlet pipe 26 also includes a lining member 72, an lining member 74, and a heat insulating material 76 having a three-layer structure.
  • annular locking members 69 are connected.
  • the first flange 28 is fixed to the upstream end 74a of the outer member 74 of the inlet pipe 26 by welding.
  • the first flange 28 and the locking member 69 are not in contact with each other.
  • a flange-shaped protrusion 78 is fixed by welding on the slightly upstream side of the intermediate portion on the outer peripheral surface of the outer member 74 by welding.
  • the upstream end surface 22c of the lower wall 22 of the casing 18 and the downstream end surface 26a of the inlet pipe 26 are opposed to each other via the third gap S3.
  • An extension 80 extending upstream is formed on the outer member 34 of the lower wall 22, and this extension 80 is fixed to the protrusion 78 of the outer member 74 of the inlet pipe 26 by welding. .
  • the overlapping portion 50 of the lower wall 22 is disposed, and further, the above-described heat insulating cushioning material 68 is disposed outside thereof. Further, the pressing member 70 described above is disposed inside the heat insulating cushioning material 68 outside the overlapping portion 50 of the lower wall 22 in the third gap S3.
  • a reinforcing member 82 is fixed by welding at a position corresponding to the third gap S3 on the outer peripheral surface of the outer member 34 of the lower wall 22.
  • FIG. 8 shows a connecting portion between the lower wall 22 and the inlet pipe 26, but the connecting portions between the other walls 20 and 24 and the inlet pipe 26 have the same structure.
  • FIG. 9 shows a connecting portion between the upper wall 20 of the casing 18 and the inlet of the exhaust heat boiler 12.
  • the second flange 30 is fixed to the downstream end portion of the outer member 34 of the upper wall 20 by welding, and the outer side thereof is reinforced by a reinforcing member 84.
  • the second flange 30 and the lining member 32 are not in contact with each other.
  • the downstream end surface 20a of the upper wall 20 and the upstream end surface 12a of the inlet of the exhaust heat boiler 12 are opposed to each other through the fourth gap S4.
  • the overlapping portion 50 of the upper wall 20 is disposed, and further, the above-described heat insulating cushioning material 68 is disposed outside thereof. Further, the pressing member 70 described above is disposed inside the heat insulating cushioning material 68 outside the overlapping portion 50 of the upper wall 20 in the fourth gap S4.
  • FIG. 9 shows the connecting portion between the upper wall 20 and the inlet of the exhaust heat boiler 12, but the connecting portion between the other walls 22, 24 and the inlet of the exhaust heat boiler 12 has the same structure.
  • the first and second flanges 28 and 30 are welded to the low temperature outer members 74 and 34, and the first and second flanges 28 and 30 and the high temperature liner members 72, 32 and Between the hot gas passage 8, heat insulating materials 76 and 36 and a heat insulating buffer material 68 are interposed.
  • the lining members 72 and 32 which become high temperature do not have a welding part. That is, the lining members 32 and 72 are members specialized for heat resistance from high-temperature gas, and the lining members 34 and 74 are members for ensuring the strength of the duct.
  • the casing 18 forming the high-temperature gas passage 8 shown in FIG. 4 is constituted by so-called internal heat insulation having a lining member 32, an outer lining member 34, and a heat insulating material 36 interposed therebetween. Therefore, the construction of the heat insulating material 36 can be performed at the factory, and the construction of the heat insulating material 32 on site is not necessary. As a result, there is no variation in the construction level due to the difference in the skills of field workers, and the quality of the heat insulation duct 10 is ensured. Moreover, since it is no longer left on site before the trial operation, it is possible to suppress the occurrence of rust in the bolt holes. Furthermore, since it is not necessary to apply a refractory material or a heat insulating material to the inside of the casing 18, they will not fall off or peel off.
  • the outer member 34 is not exposed to the high temperature gas, it is possible to suppress the deterioration of the first and second flange portions 28 and 30 and the seal member. Moreover, since the outer member 34 is not exposed to the high-temperature gas, it is not necessary to use an expensive heat-resistant metal such as a stainless steel plate or a molybdenum steel plate for the outer member 34, and the heat retaining duct 10 can be manufactured at a low cost as a whole.
  • the lining member 32 is locked to the heat insulating material 36 and connected to the outer lining member 34 via the heat insulating material 36 so as to be relatively movable, the thermal stress generated in the lining member 32 can be suppressed, It is possible to suppress the occurrence of weld cracks by eliminating the welded portion at the location in contact with the high temperature gas.
  • a locking piece 44 is provided at an end portion 32 a of the lining member 32 shown in FIG. 5, and the overlapping piece 50 is formed by bending the locking piece 44, and an outer portion of the locking piece 44 is an outer member 34. It is fixed to. Thereby, it is possible to connect the lining member 32 to the outer lining member 34 via the heat insulating material 36 so as to be relatively movable without providing a welded portion with a simple structure. Moreover, by providing the overlapping portion 50, the thermal elongation of the lining member 32 can be absorbed. Moreover, since each wall 20,22,24 of the casing 18 is flat form, manufacture becomes easy.
  • the outer portion of the locking piece 44 is fixed to the outer member 34, the high temperature exhaust gas E is transferred to the heat insulating material 36 from the gap at the connecting portion between the heat retaining duct 10 and the gas turbine GT or the exhaust heat boiler 12. It can be prevented from flowing. Thereby, since it can prevent that the temperature of the outer member 34 rises with the waste gas E which flowed into the heat insulating material 36, the heat insulation effect improves.
  • the overlapping portion 50 and the heat insulating cushioning material 68 located outside thereof are disposed,
  • the overlapping portion 50 absorbs the deformation of the lining member 32, and the heat insulating cushioning material 68 absorbs thermal expansion between the walls 20, 22, and 24 and blocks heat transfer.
  • the pressing member 70 is fitted inside the heat insulating cushioning material 68 outside the overlapping portion 50 in the first gap S1, it is possible to realize blocking of high-temperature gas and position regulation of the heat insulating cushioning material 68.
  • the lining member 32 in FIG. 4 is fastened to the outer lining member 34 at the intermediate portion 32b between the opposite end portions 32a and 32a, the bulging inward of the lining member 32 due to thermal expansion can be effectively suppressed. Moreover, heat transfer to the outer member 34 via the fastening member 52 can be minimized by setting the fastening portion to one portion of the intermediate portion 32b. Further, by this fastening, the lining member 32 may be greatly deformed inward by the thickness of the heat insulating material 36 of the upper wall 20 serving as the ceiling, or the heat insulating material 36 may be shifted and moved obliquely downward (right side in FIG. 2). Can be prevented.
  • the present invention is not limited to the above embodiment, and various additions, changes, or deletions are possible without departing from the gist of the present invention.
  • the lining member 32 is connected to the outer lining member 34 via the heat insulating material 36 in each of the walls 20, 22, and 24 so as to be relatively movable.
  • the lining member 32 may be connected to the outer lining member 34 through the heat insulating material 36 so as to be relatively movable. Therefore, such a thing is also included in the scope of the present invention.
  • Hot gas passage 10 Thermal insulation duct 18 Casing 20 Upper wall 22 Lower wall 24 Side wall 32 Inner member 34 Outer member 36 Insulating material 36a End surface 44 of insulating material 50 Locking piece 50 Superposition part 68 Insulating buffer material 70 Holding member S1 First Gap (gap between adjacent walls)

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Insulation (AREA)

Abstract

La présente invention se rapporte à une conduite adiathermique (10) qui comprend une enveloppe (18) qui forme un passage (8) pour un gaz à haute température. L'enveloppe (18) comprend un élément de revêtement interne (32) qui est réalisé à partir d'une feuille de métal et qui est exposé au passage (8) de gaz à haute température, un élément de revêtement externe (34) qui est réalisé à partir d'une feuille de métal et qui est exposé à l'air extérieur, et un matériau isolant flexible (36) qui est intercalé entre ces éléments de revêtement. L'élément de revêtement interne (32) est serré contre le matériau isolant (36) et est raccordé au matériau de revêtement externe (34) par l'intermédiaire du matériau isolant (36) de sorte à permettre un mouvement relatif vers le matériau de revêtement externe (34). Une pièce de serrage (44) qui fait saillie vers l'extérieur et qui est serrée contre la surface d'extrémité (36a) du matériau isolant (36) est montée sur la section d'extrémité (32a) de l'élément de revêtement interne (32).
PCT/JP2014/055381 2013-03-12 2014-03-04 Conduite adiathermique pour un gaz à haute température WO2014141936A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013-048871 2013-03-12
JP2013048871A JP5503767B1 (ja) 2013-03-12 2013-03-12 高温ガスの保温ダクト

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WO2014141936A1 true WO2014141936A1 (fr) 2014-09-18

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TW (1) TWI485320B (fr)
WO (1) WO2014141936A1 (fr)

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Publication number Priority date Publication date Assignee Title
JP6594182B2 (ja) * 2015-11-27 2019-10-23 三菱日立パワーシステムズ株式会社 ガス通路、これを有する排熱回収ボイラ及びガス通路の製造方法

Citations (2)

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Publication number Priority date Publication date Assignee Title
JPH10176530A (ja) * 1996-12-19 1998-06-30 Hitachi Ltd 非金属性伸縮継手
JP2010127247A (ja) * 2008-11-28 2010-06-10 Mitsubishi Heavy Ind Ltd サイレンサー

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Publication number Priority date Publication date Assignee Title
JPH07238841A (ja) * 1994-02-25 1995-09-12 Mitsubishi Heavy Ind Ltd エキスパンションジョイント構造
TWI308201B (fr) * 2003-08-01 2009-04-01 Babcock Hitachi Kk
EP2283218B1 (fr) * 2008-03-31 2016-04-27 Mitsubishi Heavy Industries, Ltd. Structure d'isolation thermique
CN101806382A (zh) * 2010-04-12 2010-08-18 山西省交通科学研究院 一种金属保温输送软管
DE102011114060A1 (de) * 2011-09-22 2013-03-28 Ihi Charging Systems International Gmbh Hitzeschild für einen Abgasturbolader sowie Anordnung eines Hitzeschilds zwischen zwei Gehäuseteilen eines Abgasturboladers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10176530A (ja) * 1996-12-19 1998-06-30 Hitachi Ltd 非金属性伸縮継手
JP2010127247A (ja) * 2008-11-28 2010-06-10 Mitsubishi Heavy Ind Ltd サイレンサー

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JP5503767B1 (ja) 2014-05-28
TW201502360A (zh) 2015-01-16
TWI485320B (zh) 2015-05-21

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