Microsoft PowerPoint - 1_状態監視_資料.ppt [互換モード]
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- みちしげ あわび
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1 1 (LCC) IT Internet SystemPAMCMMS Web BM : Breakdown Maintenance Planned Maintenance PM : Preventive Maintenance ISO13372 PRM : Predictive Maintenance () RBI ( ) ( ) () RBI 振動状態監視 ( 簡易診断 )
2 C D 11%4% 2% 5% 7% 14% 89% 68% A B C D E F No etc 8 etc 6 etc 3 etc 0 20kg/cm kg/cm 2 20kg/cm mmHg abs 10kg/cm mmHg abs A B No etc 0 etc 4 2 ( etc)
3 No etc 2 0 No [P i] (1) P i (2) P o (3) L = P i P o (4) η= P o / P i 2 [S] [P o] S A B C D A
4 NAS SOAP mm (1μm) mm 3. 5mm 50mm SOAP Spectrometric Oil Analysis Program SOAP 5μ (μm) HP ICP JOAP(Joint Oil Analysis Program) 4
5 ICP Voltage Time NAS CO 2 RS232 NAS NAS ml μm 4,000 8,000 16,000 32,000 64, , , ,000 1,024, μm 712 1,425 2,850 5,700 11,400 22,800 45,600 91, , μm ,012 2,025 4,050 8,100 16,200 32, μm ,440 2,880 5,760 15dB μm ,024 NAS Mpa NAS 9 10 NAS 8 9 NAS 6 7 5
6 振動状態監視 簡易診断 NAS等級の測定事例 NAS1638では 作動油100mlあたりの汚染異物の個数で汚染度等級を制定 粒径 等級 μm 4,000 8,000 16, , , μm 712 1, μm μm μm , , ,000 1,024,000 2,850 5,700 11,400 22,800 45,600 91, , ,012 2,025 4,050 8,100 16,200 32, ,440 2,880 5, ,024 熱画像 プリズムによる分光 ISO等級のための測定例 1800年 ハーシェル(英国)が太陽光をプリズ ムで分光している時に 偶然に赤色光の外側 に物体の温度を高くする目に見えない光があ ることを発見した 赤外線とは ISO等級の測定事例 ISO4406では 試料1mlあたりの粒子の個数濃度で清浄度コードを割当 清浄度を2μm 5μm 15μmの3コードで表示 波長が0.7μm 1mmの範囲の電磁波である 清浄度コード 粒子数 清浄度コード 粒子数 k 2.5k 5k 10k 清浄度コード 粒子数 20k 40k 80k 160k 320k 640k 1.3kk 2.5kk 5kk 10kk k = 1,000 kk = 1,000, GHz 3MHz 波長 周波数 赤外線ｻｰﾓｸﾞﾗﾌｨ が扱う波長帯域 18/17/14 (2μ/5μ/15μ) 波長(μ) 波数(/10mm) μm 近赤外線 μm 中間赤外線 μm 遠赤外線 6
7 2 320(H)240(V) 1/60s 814μm at 30 22% 32(H) 1.78 mrad 24(V) ISO/CD18434 Condition monitoring and diagnostics of machines Thermography General procedures 2 HP G120EX : ISO/CD18434 Condition monitoring and diagnostics of machines Thermography General procedures NEC HP 7
8 AE AE AE (Envelope) Acoustic Emission AE AE khz MHz Amp. RF out <1kHz ENV out AE s 1 s 2 FFT (c/min) AE (a) (b) (c) 8
9 Crest Factor c P eak eak f rms rms P Peak rms Crest Factor c Peak P eak eak f rms rms P rms HFD gse HFD : High frequency demodulation HFD Hilbert gse IRD p-p 9
10 s 4 n i1 x i 4 Kurtosis Kurtosis 3 3 Southampton R.M.Steward 68.3% 68.3% Equivalent rms eq 0 σ σ Kurtosis = σ σ rms Com _ ra 2.75 rms 10
11 (1) (2) (3) (4) (1) (2) (3) 11
12 k 1k 10k 100k k 1k 5k 20k 50k 10Hz1kHzrms Over all Charge Amplifier Intrgrator 1 A V Integrator 2 V D Low Pass Filter A V D High Pass Filter True RMS Detector Peak Detector BPFI = (N b f r 0.6) k 1k 10k 100k Hz ,000 10, k 1k 5k 20k 50k 12
13 1kHz 1kHz ISO HV HVA HV ISO ISO ISO ISO
14 ISO H V A H V A H V A H V A rms rms ISO
15 3 3 15
16 (1) (2) (3) (4) (1) (2) (3) : 6 or 9 : : 95% 2.5 : 50% 2.0 : 30% mm/s : 6 or 9 : : 95% 2.5 : 50% 2.0 : 30% 1 vn l log n v 0 16
17 y ax b 2 mm/s y v 10 0 axb / / mm/s / / / / 17
18 A B C Hz f i f o f b f i f o f b f i f o f b mm/s (rms) A B C A B N: 8 B: P: CD N: 8 B: P: rpm A B MG DC AC f i : 82.0Hz f i : 81.8Hz f o : 51.4Hz f b : 34.4Hz f o : 51.5Hz f b : 34.9Hz C D 2 D A N: 8 B: P: 89.0 B N: 8 B: P: C N:10 B: P: rpm A B C f i : 79.3Hz f i : 79.3Hz f i : 95.2Hz f o : 49.4Hz f b : 32.8Hz f o : 49.4Hz f b : 32.7Hz f o : 65.7Hz f b : 42.3Hz 7 A B C D Hz f i f o f b f i f o f b f i f o f b f i f o f b
19 T.C.Rathbone Power Plant Engineering (Peak to Peak:μ) dB (rpm) S.J.Shuey (Peak to Peak:μ) Power Engineering IRD (Peak to Peak:μ) dB (rpm) (rpm) S.J.Shuey 1000 (Peak to Peak:) rpm=15.9Hz D=20μm ( ) V=1mm/s ( ) A=0.1m/s 2 ( ) r = 1m/s 2 () r = 5mm/s () r (rpm) M.P.Blake AA (Peak to Peak:μ) A B 10 C D Hydrocarbon Processing and Petroleum Refinery AA A B C D 39.5dB (rpm) 19
20 M.P.Blake ( ) (Peak to Peak:μ) AA A B C D (rpm) (mm/s) ISO Hz1,000Hz mm/s (rms) dB dB D ( ) C () B () A () (mm/s) ISO kW 10200/ 15kW75kW 300kW 1974 ISO mm/s (rms) Zone boundary A/B 0.71 to 4.5 Range of typical zone boundary values r.m.s. vibration velocity (mm/s) Zone boundary B/C 1.8 to 9.3 Zone boundary C/D 4.5 to ISO kW (mm/s) ISO Hz1,000Hz mm/s (rms) kW 10200/ 15kW75kW 300kW rpm12,000rpm 10μm 100μm p-p : 20
21 f 2P 4P 6P 50 Hz Hz Hz Hz V5 V10 V15 V20 V30 (μm p-p ) mm/s (rms) mm/s(rms) 0.5 mm/s 1 mm/s 5 mm/s (<10kW) 1 mm/s 2 mm/s 10 mm/s (10100kW) 2 mm/s 4 mm/s 20 mm/s (>100kW) (A) 2 mm/s (rms) Canadian Standard CDA/MA/NVSH107 mm/s (rms) Machine Type Good Caution Dangerous 2 18 (4) 32 (10) Large Steam Turbines Pomp Drive (3) 18 (7) Motor Generator Sets (2) 10 (5) Fan Drives at far end (2) 10 (5) Boiler Auxiliaries 1 3 (2) 10 (5) General Motor (0.5) 5.6 (1.5) mm/s (rms) mm/s (rms)
22 mm/s (rms) mm/s (rms) mm/s (rms) AGMA:American Gear Manufacturers Association 30-50cm cm cm <10cm Mils(p-p) Hz mm/s (rms) AGMA:American Gear Manufacturers Association (1) 1 2 (2) (3) μm(p-p) Hz 22
23 API mm/s 2.5mm/s 5.1mm/s 5.1mm/s 7.6mm/s 7.6mm/s 12.7mm/s 12.7mm/s 5.1mm/s 5.1mm/s 7.6mm/s 7.6mm/s 10.2mm/s 10.2mm/s 15.2mm/s 15.2mm/s Levels-Lufkin Industries, Inc. () :1kHz10kHz (rms) 30 m/s 2 10 m/s 2 30 m/s 2 10 m/s 2 () 600rpmV SwRI Danger Correction Marginal Design SwRI Southwest Research Institute B/ C C: B: A: DN D(mm) N(rpm)/10000 mm N 000 DN 15 rpm /10, DN DN A/ B JFE (rms) (N : rpm) rpm X d (m/s 2 (rms)) :2.2m/s D N :0.55m/s X c X d mm (D : mm) 23
24 (NU312,z:12) μ N = σ N = μ F = 2.34 σ F = 0.43 DN (m/s 2 ) μ F = 2.34 σ F = 0.43 DN ( ) μ N = σ N = (mm/s) kw (kw)
25 (=0dB) xi Li log μ n = 2.31 σ n = μ c =(μ n +μ f )/2 σ c =(σ n +σ f )/2 μ n = 2.31 μ c = 2.84 μ f = 3.36 σ n = σ c = σ f = (=0dB) xi Li log μ f = 3.36 σ f = L c n c c n n c μ n = 2.31 μ c = 2.84 μ f = 3.36 σ n = σ c = σ f = L d c f f c c f μ n = 2.31 μ f = 3.36 μ n = 2.31 μ c = 2.84 μ f = 3.36 σ n = σ f = σ n = σ c = σ f =
26 L c = 2.59 L d = 3.12 μ f = 2μ c μ n σ f = 2σ c σ n μ n = 2.31 μ c = 2.84 μ f = 3.36 μ n = 2.31 μ c = 2.84 μ f = 3.37 σ n = σ c = σ f = σ n = σ c = σ f = X c X d Lc Ld μ n = 2.31 μ c = 2.84 σ n = σ c = :90% 2.5:50% :30% 30%2.5 50%3.0 95% 26
27 L c = μ n +2σ n = 2.52 L f = μ n +6σ n = 2.95 μ n = 2.31 μ n = 2.31 σ n = σ n = μ c = μ n +4σ n σ n < σ n = (1.6) L c = σ L f = 2.95 μ n = 2.31 μ n = 2.74 σ n = σ c = % 2.3% μ c = μ n +4σ n σ n < σ n = (1.6) μ f = μ n +8σ n L c = 2.52 L f = 2.95 μ n = 2.31 μ n = 2.74 μ n = 3.17 L c : σ n = σ c = σ f = L f :
28 σ n < σ n = (1.6) x g (Normal Domain) GD g X x 2 4 x (Caution Domain) CD g (Dangerous Domain) DD g X X 4 10 x (Not Permitted) X NP 10 x g ISO (ALARMS) 2 ISO (Zone B )0.25 < 1.25(Zone B ) (Zone C ) ( ) x 1 x x x x x g s 1 2 xn 1 x3 n i1 2 1 n x i x g n 1 x g 3s x2 3 n n i1 x i *****<LCL< x g <UCL<***** n (Standard Deviation) x g 3s (Zone C ) Zone D Zone C x g 2 2x g Zone B Zone A x g f 1 f 2 f 3 f 4 28
29 1.25(Zone B ) (Zone C Zone D) Zone D 11.2 Zone C 4.5 x g +0.25B/C Zone B Zone D Zone C Zone B B/C 10x g x g Zone A Zone A x g f 1 f 2 f 3 f 4 f 1 f 2 f 3 f 4 (TRIPS) 10 ISO B rpm (ISO ) r/min 1500 or or 3600 rms (mm/s) A/B B/C C/D ISO ISO13373 (Zone C Zone D) < 1.25(Zone C ) 8mm/s 4mm/s =5.9mm/s (Zone B) 6mm/s =7.9mm/s (Zone C) = mm/s6mm/s 11.8mm/s = Zone C 1.25(Zone C ) Zone D Zone C Zone B 10x g Zone A x g f 1 f 2 f 3 f 4 29
Microsoft PowerPoint - 02_資料.ppt [互換モード]
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