JP3583461B2 - Cleaning device for air compressor and cleaning liquid therefor - Google Patents

Cleaning device for air compressor and cleaning liquid therefor Download PDF

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Publication number
JP3583461B2
JP3583461B2 JP06473194A JP6473194A JP3583461B2 JP 3583461 B2 JP3583461 B2 JP 3583461B2 JP 06473194 A JP06473194 A JP 06473194A JP 6473194 A JP6473194 A JP 6473194A JP 3583461 B2 JP3583461 B2 JP 3583461B2
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Japan
Prior art keywords
air compressor
cleaning
cleaning liquid
blades
nozzle
Prior art date
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Expired - Fee Related
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JP06473194A
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Japanese (ja)
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JPH07279613A (en
Inventor
秀 雨宮
重信 片桐
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Toshiba Corp
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Toshiba Corp
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Priority to JP06473194A priority Critical patent/JP3583461B2/en
Publication of JPH07279613A publication Critical patent/JPH07279613A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/70Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/705Adding liquids

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

【0001】
【産業上の利用分野】
この発明は、空気圧縮機の静翼、動翼に沈着した堆積物を好ましく除去する空気圧縮機の洗浄装置およびその洗浄液に関する。
【0002】
【従来の技術】
発電所に使用される空気圧縮機は、多量の圧縮空気を作り出して燃焼器に与えるため空気源を大気に求めている。この場合、大気中には諸種の塵埃物が含まれており、吸気フィルター等のロ過器で塵埃物を取り除くにしても、取りきれない物は静翼、動翼に沈着し、翼の損耗あるいは圧縮効率の低下を招来している。
【0003】
従来、翼に沈着した塵埃物の除去作業は、洗浄水の噴霧により洗浄しており、その一代表的な洗浄装置は図2に示すものがある。洗浄装置は、図に示すように、空気圧縮機1の入口にノズル4を設け、ノズル4に導通する管寄せ2に分岐管3を介装し、さらに導通路8を経て注水タンク5に接続されている。また導通路8にはポンプ6、止め弁7を備えている。
【0004】
上述構成の洗浄装置を用いて空気圧縮機の翼を洗浄する場合、先ず止め弁7を閉じ、逃し弁9を開口し、導通路8の残水を取り除いている。次に、逃し弁9を閉じ、止め弁7を開口し、注水タンク5からの洗浄液をノズル4を経て翼に噴霧し、こうして翼洗浄を行なっている。洗浄後の洗浄液はドレン弁10を経て機外に抜き出されている。
【0005】
【発明が解決しようとする課題】
図2に示す従来の空気圧縮機の洗浄装置では、洗浄液が機内に残留して高温状態にさらされている機材に悪影響を与えることをおそれて薬品を添加していない、いわゆる純水が使用されている。
【0006】
このため、翼の洗浄にあたり、塵埃物の除去は、専らノズル4からの噴口力にたよざらずをえず、油性物質やその酸化物質などはノズル4の噴口力をもってしても完全に除去することができない問題点がある。また、洗浄液が純水であっても、空気圧縮機内は酸素をたっぷり含んだ湿潤雰囲気であり、いやおうなしに酸化腐食の問題がある。さらに、近年環境規制の観点から、ガスタービン燃焼器のNOx発生値が厳しくおさえられているが、この場合、ガスタービン燃焼器に連通する空気圧縮機に洗浄水を噴霧していたのでは、燃焼部分に錆等の問題が出、燃料噴霧に悪影響を与え、ひいては消失の問題が出る等諸種問題がある。
【0007】
この発明はかかる事情に鑑み、翼に沈着した塵埃物を良好に除去できるようにする一方、翼に洗浄水を噴霧しても他の構成部分に錆等を発生させないで洗浄できるようにした空気圧縮機の洗浄装置およびその洗浄液を提供することを目的とする。
【0008】
【課題を解決するための手段】
この発明にかかる空気圧縮機の洗浄装置は、上述課題を解決するために、空気圧縮機の入口にノズルを設け、このノズルに導通して注水タンクを設け、注水タンクからの洗浄水を空気圧縮機の静翼、動翼に噴霧する空気圧縮機の洗浄装置において、上記ノズルに至る導通路に薬液タンクを設ける一方、加熱器と冷却器を列状に設け、薬液タンクからの洗浄剤に注水タンクからの水を加えた洗浄液を加熱器により加温して上記空気圧縮機の静翼、動翼に噴霧し、洗浄後、再び洗浄液を冷却器により冷却して上記空気圧縮機の静翼、動翼に噴霧するものである。
【0009】
また、上記課題を解決するために、この発明にかかる空気圧縮機の洗浄液は、請求項2に記載したように、濃度1.5 〜5%の気化性防錆剤と濃度0.5 〜1%のアルコールとからなるようにしたものである。
【0010】
【作用】
この空気圧縮機の洗浄装置は、洗浄液を一旦、加熱器により加温してから翼に沈着した油脂類、塵埃物に噴霧し、次に洗浄液を冷却器により冷してから翼に沈着した油脂類、塵埃物に噴霧するものであり、最初、翼に沈着した塵埃物の剥離を促し、次に冷えた洗浄液の噴霧力により翼に沈着した油脂類、塵埃物を取り除くようにしている。
【0011】
したがって、翼に沈着した油脂類・塵埃物を確実に取り除くことができる。
その際、洗浄液は防錆効果が高く、揮発性の高い溶液にしてあるため、他の構成物におよぼす錆発生や腐食発生の心配がなく、安心した運転を継続することができる。
【0012】
【実施例】
以下この発明にかかる空気圧縮機の洗浄装置およびその洗浄液の実施例を図を参照して説明する。
図1は、この発明にかかる空気圧縮機の洗浄装置を示す略示図である。
【0013】
図1は、空気圧縮機、ガスタービン、発電機等からなるガスタービン発電プラントのうち、空気圧縮機1のみを抜き出した略示図である。
空気圧縮機1は、その入口にノズル4を備えている。このノズル4は分岐管3を介装して管寄せ2に接続されている。管寄せ2は、導通路8を経て注水タンク5に連通しており、この導通路8に加熱器15と冷却器14が列状に設置されている。また、導通路8には薬注ポンプ11、元弁12を経て薬液タンク13が設けられている。
【0014】
上記構成の洗浄装置において、空気圧縮機の翼の洗浄は次のようにして行なわれる。
まず、洗浄にあたり、導通路8の弁7を開口し、逃し弁9およびドレン弁10を閉口する。つづいて、ポンプ6により注水タンク5からの洗浄水を抜き出し、薬液タンク13からの洗浄剤を加え、さらに加熱器14により加温して温水状態にし、温水状態の下、管寄せ2に集め、ここからノズル4を経て空気圧縮機1の静翼・動翼に噴霧している。
【0015】
この工程が終ると、次に、注水タンク5の洗浄水に薬液タンク13の洗浄剤を加え、その洗浄液は冷却器15により冷され、冷された洗浄液は上述と同様にノズル4から空気圧縮機1の静翼、動翼に噴霧している。
【0016】
このように、空気圧縮機の静翼、動翼の洗浄にあたり、洗浄液を暖冷の二工程に分けたのは、最初、翼に沈着した油脂類、塵埃物の剥離を促し、軟弱状態に油脂類、塵埃物を翼から容易に剥離させるためである。
【0017】
ちなみに、濃度0.5 〜5%の気化性防錆剤に、濃度0.5 〜1%のアルコールを加えた洗浄液を、流量約150 l/min の洗浄水に通水し、このような条件の下、その洗浄液を加熱器14により約80℃に昇温させてノズル4から翼に約3分間噴霧し、次に加熱器14を停止し、冷却器15を作動させて約10℃に冷し、翼に約3分間連続洗浄を行った結果、翼に沈着した油脂類、塵埃物は良好に除去されていることが確認された。
【0018】
ところで、この発明に適用した洗浄液のうち、気化性防錆剤は、シクロヘキシルアンモニウムナイトライド〔(C11 ・NH・HNO 〕であり、空気圧縮機の機内材の表面に、水に非溶性のシクロヘキシル亜硝酸第一鉄アンモニウム〔(C11)・NH〕 ・Fe(NO の被膜を作って防食を図るものである。また、気化性防錆剤に濃度0.5 〜1%のアルコールを加えたのは、気化性防錆剤の洗浄水への溶解度を促し、洗浄後の洗浄液の蒸発性を促し、油脂類の軟弱性を促すためである。
【0019】
図3は、気化性防錆剤溶液にテストピースAを浸した場合と、テストピースBを浸さない場合とを比較した錆の発生有無を確認した図である。
この図からも理解されるように、気化性防錆剤溶液に浸したテストピースAは、錆の発生がないことが確認された。また、濃度1.5 %以上の気化性防錆剤では、その溶液にテストピースA,Bを浸漬しようがしまいが、その有無に関係なく1週間経過しても金属光沢はもとの状態に維持されていることも確認された。
【0020】
【発明の効果】
以上説明したように、この発明にかかる空気圧縮機の洗浄装置では、洗浄液を加熱器により加温して翼に噴霧させ、翼に沈着した油脂類・塵埃物を軟弱化させ、次に洗浄液を冷却器により冷して翼に噴霧させたものであるから、翼に沈着した油脂類・塵埃物は確実に取り除くことができる。
また、洗浄液は防錆効果が高く、揮発性の高い溶液であるから、空気圧縮機内の機材に錆発生や腐食発生を与える心配がない等すぐれた効果を奏する。
【図面の簡単な説明】
【図1】この発明にかかる空気圧縮機の洗浄装置の実施例を示す略示図。
【図2】従来の実施例を示す略示図。
【図3】気化性防錆剤溶液に、テストピースを浸漬した場合、そうでない場合における錆の発生有無を確認した説明図。
【符号の説明】
1 空気圧縮機
2 管寄せ
4 ノズル
5 注水タンク
8 導通路
13 薬液タンク
14 加熱器
15 冷却器
[0001]
[Industrial applications]
The present invention relates to a cleaning device for an air compressor that preferably removes deposits deposited on a stationary blade and a moving blade of the air compressor, and a cleaning liquid therefor.
[0002]
[Prior art]
Air compressors used in power plants require the atmosphere to source air to produce and deliver large amounts of compressed air to combustors. In this case, various kinds of dust are contained in the atmosphere, and even if the dust is removed by a filter such as an intake filter, the unremovable material deposits on the stationary blades and the moving blades, and the blades are worn. Alternatively, the compression efficiency is reduced.
[0003]
2. Description of the Related Art Conventionally, the operation of removing dust deposited on a wing is performed by spraying cleaning water, and a typical cleaning apparatus is shown in FIG. As shown in the figure, the cleaning device is provided with a nozzle 4 at the inlet of the air compressor 1, a branch pipe 3 interposed in a header 2 communicating with the nozzle 4, and further connected to a water injection tank 5 through a conduction path 8. Have been. The conduction path 8 is provided with a pump 6 and a stop valve 7.
[0004]
When cleaning the blades of the air compressor using the cleaning device having the above-described configuration, first, the stop valve 7 is closed, the relief valve 9 is opened, and residual water in the passage 8 is removed. Next, the relief valve 9 is closed, the stop valve 7 is opened, and the cleaning liquid from the water injection tank 5 is sprayed on the blade through the nozzle 4 to perform blade cleaning. The cleaning liquid after the cleaning is drawn out of the apparatus via the drain valve 10.
[0005]
[Problems to be solved by the invention]
In the conventional apparatus for cleaning an air compressor shown in FIG. 2, so-called pure water, in which a chemical is not added because a cleaning liquid remains in the apparatus and adversely affects equipment exposed to a high temperature, is used. ing.
[0006]
For this reason, in cleaning the wings, it is inevitable that dust should be removed exclusively by the nozzle force from the nozzle 4, and oily substances and their oxidized substances are completely removed even by the nozzle force of the nozzle 4. There is a problem that cannot be done. Even if the cleaning liquid is pure water, the inside of the air compressor is in a humid atmosphere containing plenty of oxygen, and there is a problem of oxidative corrosion. Further, in recent years, the NOx generation value of the gas turbine combustor has been strictly controlled from the viewpoint of environmental regulations. In this case, if the cleaning water was sprayed on the air compressor communicating with the gas turbine combustor, combustion There are various problems such as a problem such as rust on the part, which has an adverse effect on the fuel spray and, consequently, a problem of disappearance.
[0007]
In view of such circumstances, the present invention has been made to remove dust deposited on a wing in an excellent manner, while also allowing air to be washed without spraying cleaning water onto the wing without causing rust or the like on other components. An object of the present invention is to provide a compressor cleaning device and a cleaning liquid therefor.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, a cleaning device for an air compressor according to the present invention is provided with a nozzle at the inlet of the air compressor, and a water injection tank is provided to communicate with the nozzle, and the cleaning water from the water injection tank is compressed by air. In a cleaning device for an air compressor that sprays on the stationary blades and moving blades of a machine, a chemical solution tank is provided in the conduction path leading to the nozzle, while a heater and a cooler are provided in a row, and the cleaning agent is injected from the chemical solution tank. The cleaning liquid to which water from the tank is added is heated by a heater and sprayed on the stationary blades and moving blades of the air compressor.After cleaning, the cleaning liquid is cooled again by the cooler and the stationary blades of the air compressor are cleaned. It sprays on the rotor blades.
[0009]
Further, in order to solve the above-mentioned problems, a cleaning liquid for an air compressor according to the present invention comprises a volatile rust preventive having a concentration of 1.5 to 5% and a concentration of 0.5 to 1%. % Alcohol.
[0010]
[Action]
The cleaning device of this air compressor is configured such that the cleaning liquid is once heated by a heater and then sprayed on oils and fats and dust deposited on the blades, and then the cleaning liquid is cooled by a cooler and then cooled on the blades. And spraying dust on the wings. First, the separation of the dust deposited on the wings is promoted, and then the oil and fats and the dusts deposited on the wings are removed by the spraying force of the cooled cleaning liquid.
[0011]
Therefore, oils and fats and dust deposited on the wing can be reliably removed.
At this time, the cleaning liquid has a high rust-preventing effect and is a highly volatile solution, so that there is no fear of rust or corrosion occurring on other components, and safe operation can be continued.
[0012]
【Example】
Hereinafter, an embodiment of a cleaning device for an air compressor and a cleaning liquid for the same according to the present invention will be described with reference to the drawings.
FIG. 1 is a schematic view showing a cleaning device for an air compressor according to the present invention.
[0013]
FIG. 1 is a schematic diagram showing only an air compressor 1 extracted from a gas turbine power plant including an air compressor, a gas turbine, a generator, and the like.
The air compressor 1 has a nozzle 4 at its inlet. The nozzle 4 is connected to the header 2 through a branch pipe 3. The header 2 communicates with the water injection tank 5 through a conduction path 8, and a heater 15 and a cooler 14 are arranged in a row in the conduction path 8. Further, a chemical solution tank 13 is provided in the conduction path 8 via a chemical injection pump 11 and a main valve 12.
[0014]
In the cleaning device having the above configuration, the cleaning of the blades of the air compressor is performed as follows.
First, in cleaning, the valve 7 of the conduction path 8 is opened, and the relief valve 9 and the drain valve 10 are closed. Subsequently, the cleaning water from the water injection tank 5 is drawn out by the pump 6, the cleaning agent from the chemical solution tank 13 is added, and further heated by the heater 14 to a hot water state, and collected in the header 2 under the hot water state. From here, it is sprayed to the stationary blades and the moving blades of the air compressor 1 via the nozzle 4.
[0015]
When this step is completed, next, the cleaning agent in the chemical solution tank 13 is added to the cleaning water in the water injection tank 5, and the cleaning solution is cooled by the cooler 15, and the cooled cleaning solution is supplied from the nozzle 4 to the air compressor in the same manner as described above. 1 sprayed on the stationary blades and moving blades.
[0016]
As described above, when cleaning the stationary blades and the moving blades of the air compressor, the cleaning liquid was divided into two steps of warming and cooling. First, the separation of oils and fats and dust deposited on the blades was promoted, and the oils and fats became soft. The purpose is to easily separate kinds and dust from the wing.
[0017]
By the way, a washing liquid obtained by adding a 0.5-1% alcohol to a vaporizable rust inhibitor having a concentration of 0.5-5% is passed through a washing water having a flow rate of about 150 l / min. The temperature of the cleaning solution is raised to about 80 ° C. by the heater 14 and sprayed from the nozzle 4 onto the blades for about 3 minutes. Then, the heater 14 is stopped, and the cooler 15 is operated to cool the cleaning liquid to about 10 ° C. Then, the blades were continuously washed for about 3 minutes. As a result, it was confirmed that oils and fats and dust deposited on the blades were removed well.
[0018]
By the way, among the cleaning liquids applied to the present invention, the vaporizable rust preventive is cyclohexyl ammonium nitride [(C 6 H 11 ) 2 .NH.HNO 2 ], and the surface of the internal material of the air compressor has water. A coating of insoluble cyclohexylammonium ferrous nitrite [(C 6 H 11 ) .NH] 2 .Fe (NO 2 ) 2 is formed to prevent corrosion. Further, the addition of the alcohol having a concentration of 0.5 to 1% to the vaporizable rust preventive promotes the solubility of the vaporizable rust preventive in the washing water, promotes the evaporability of the cleaning liquid after the cleaning, and reduces the oils and fats. This is to promote weakness.
[0019]
FIG. 3 is a diagram in which the presence or absence of rust was confirmed by comparing the case where test piece A was immersed in the vaporizable rust inhibitor solution with the case where test piece B was not immersed.
As can be understood from this figure, it was confirmed that the test piece A immersed in the vaporizable rust inhibitor solution did not generate rust. Also, with a vaporizable rust inhibitor having a concentration of 1.5% or more, the test pieces A and B would be immersed in the solution, but the metallic luster would be restored to its original state after one week regardless of the presence or absence. It was confirmed that it was maintained.
[0020]
【The invention's effect】
As described above, in the cleaning device for an air compressor according to the present invention, the cleaning liquid is heated by the heater and sprayed on the wings to soften oils and fats and dust deposited on the wings, and then the cleaning liquid is washed. Since it is cooled by the cooler and sprayed on the blades, oils and fats and dust deposited on the blades can be reliably removed.
Further, since the cleaning liquid has a high rust-preventing effect and is a highly volatile solution, it exhibits excellent effects such as no rusting or corrosion occurring on the equipment in the air compressor.
[Brief description of the drawings]
FIG. 1 is a schematic view showing an embodiment of a cleaning device for an air compressor according to the present invention.
FIG. 2 is a schematic view showing a conventional example.
FIG. 3 is an explanatory diagram in which the presence or absence of rust was confirmed when a test piece was immersed in a vaporizable rust inhibitor solution and when it was not.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Air compressor 2 Header 4 Nozzle 5 Water injection tank 8 Conduction path 13 Chemical liquid tank 14 Heater 15 Cooler

Claims (2)

空気圧縮機の入口にノズルを設け、このノズルに導通して注水タンクを設け、注水タンクからの洗浄水を空気圧縮機の静翼、動翼に噴霧する空気圧縮機の洗浄装置において、上記ノズルに至る導通路に薬液タンクを設ける一方、加熱器と冷却器を列状に設け、薬液タンクからの洗浄剤に注水タンクからの水を加えた洗浄液を加熱器により加温して上記空気圧縮機の静翼、動翼に噴霧し、洗浄後、再び洗浄液を冷却器により冷却して上記空気圧縮機の静翼、動翼に噴霧することを特徴とする空気圧縮機の洗浄装置。A nozzle is provided at an inlet of the air compressor, a water injection tank is provided by being connected to the nozzle, and a cleaning device of the air compressor that sprays washing water from the water injection tank to stationary blades and moving blades of the air compressor. While a chemical solution tank is provided in the conduction path leading to the air compressor, a heater and a cooler are provided in a row, and the cleaning solution obtained by adding water from the water injection tank to the cleaning agent from the chemical solution tank is heated by the heater to form the air compressor. A cleaning device for an air compressor, characterized in that the cleaning liquid is sprayed onto a stationary blade and a moving blade of the air compressor, and after cleaning, the cleaning liquid is cooled again by a cooler and sprayed onto the stationary blade and the moving blade of the air compressor. 洗浄液は濃度1.5 〜5%の気化性防錆剤と濃度0.5 〜1%のアルコールとからなることを特徴とする空気圧縮機の洗浄液。A cleaning solution for an air compressor, wherein the cleaning solution comprises a volatile rust inhibitor having a concentration of 1.5 to 5% and an alcohol having a concentration of 0.5 to 1%.
JP06473194A 1994-04-01 1994-04-01 Cleaning device for air compressor and cleaning liquid therefor Expired - Fee Related JP3583461B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP06473194A JP3583461B2 (en) 1994-04-01 1994-04-01 Cleaning device for air compressor and cleaning liquid therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP06473194A JP3583461B2 (en) 1994-04-01 1994-04-01 Cleaning device for air compressor and cleaning liquid therefor

Publications (2)

Publication Number Publication Date
JPH07279613A JPH07279613A (en) 1995-10-27
JP3583461B2 true JP3583461B2 (en) 2004-11-04

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EP2052792A3 (en) * 2007-10-09 2011-06-22 Gas Turbine Efficiency Sweden AB Drain valve, washing system and sensing of rinse and wash completion
US8845819B2 (en) * 2008-08-12 2014-09-30 General Electric Company System for reducing deposits on a compressor
US9279365B2 (en) * 2012-09-04 2016-03-08 General Electric Company Power augmentation systems and methods for grid frequency control
CN103334967A (en) * 2013-06-14 2013-10-02 江苏永钢集团有限公司 Cleaning device for air compressor
CN104006005B (en) * 2014-05-29 2016-02-03 衡阳华菱钢管有限公司 Turbocompressor on-line cleaning device and turbocompressor on-line cleaning method

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JPS5247112A (en) * 1975-10-13 1977-04-14 Hitachi Ltd Automatic flusher of gas turbine
JPS5960036A (en) * 1982-09-29 1984-04-05 Hitachi Ltd Water washing system for turbine and main axial-flow compressor of gas turbine
JPS59113300A (en) * 1982-12-20 1984-06-29 Kawasaki Heavy Ind Ltd Liquid washing device for turbo compressor
JPS62176449U (en) * 1986-04-30 1987-11-09
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JPH0658172A (en) * 1992-08-03 1994-03-01 Kobe Steel Ltd Gas turbine compressor washing device

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