第六章 潤(rùn)滑油系統(tǒng)

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1、 第六章 LUBE OIL SYSTEM 潤(rùn)滑油系統(tǒng) 6.1 GENERAL DESCRIPTION一般描述 The lube oil system supplies filtered lubricating oil to turbine engine bearings and various package components within operating pressure and temperature limits. The lube oil system is monitored by the package control system and incorporat

2、es lube oil reservoir, oil cooling system, pumps, filters, pressure control devices, and temperature control valves.潤(rùn)滑油系統(tǒng)過(guò)濾的潤(rùn)滑油供給透平引擎軸承及各種裝置部件，以使之處于操作溫度及壓力限值之內(nèi)。潤(rùn)滑油系統(tǒng)由裝置控制系統(tǒng)監(jiān)視，與潤(rùn)滑油存儲(chǔ)罐、油冷卻系統(tǒng)、泵、過(guò)濾器、壓力控制設(shè)備及溫度控制閥合為一體。 6.1.1 General Lubricating Oil Requirements一般潤(rùn)滑油要求 Lubricating oil containing suitable

3、 additives must meet physical and chemical requirements in Table 6.1.1. Lubricating oil shall not contain additives that are degradable below 284°F (140°C) or water separable. Additives shall remain uniformly distributed throughout the oil at all temperatures above pour point up to 284°F (140°C).包含有

4、合適添加劑的潤(rùn)滑油必須滿足表6.1.1的物理和化學(xué)要求。潤(rùn)滑油不應(yīng)含在284華氏（140攝氏度）以下降解的添加劑及可分離水。當(dāng)溫度超過(guò)284華氏（140攝氏度）時(shí)，添加劑應(yīng)該保持均勻分布到整個(gè)油體。 Table 6.1.1 General Lubricating Oil Physical and Chemical Requirements通用潤(rùn)滑油物理及化學(xué)要求 ASTM Std.美國(guó)材料試驗(yàn)協(xié)會(huì)標(biāo)準(zhǔn) Oil Properties油屬性 Minimum Requirements For New Oil新裝油最低要求 D130 Copper Corrosion at 212 °F (

5、100°C), three hours在212華氏（100攝氏度）銅腐蝕，3個(gè)小時(shí) Class 1b 1b級(jí) D665 Rust Prevention, Procedure B防銹，流程B Pass D892 Foam Limits, Milliliters Maximum泡沫限制，最大值的千分之一 Sequence 1 順序1 Sequence 2 順序2 Sequence 3 順序3 50/0 50/0 50/0 D943 Oxidation Resistance, Minimum Number of Hours to 2.0 Neutralization

6、Number抗氧化性，中和的最小時(shí)間 2000 D1401 Emulsion Test乳化測(cè)試 40-40-0 (30) D4628 Zinc, Weight %, Maximum鋅占最大比重 0.005 D1744 Water, Weight, Parts Per Million, Maximum每一百萬(wàn)含水最大 200 (0.02 wt. %) D1947 Load Carrying Capacity, lb/in., Minimum載流容量 1000 D4172 Wear Preventative Characteristic, Scar Diameter,

7、 Millimeters Maximum (167°F [75°C] 1200 rpm, 88.1 lb [40kg], 1 hour)防磨耗特性，創(chuàng)傷直徑，毫米最大 0.90 D2273 Sediment Volume % Maximum沉積物體積%最大 0.005 6.1.2 Petroleum Lubricating Oil潤(rùn)滑油 Petroleum lubricating oil ISO VG 32 (S150) is used on this installation. Refer to Solar Specification ES 9-224 for other qua

8、lified oils that can be used.安裝時(shí)使用潤(rùn)滑油ISO VG（S150）。參考索拉ES 9-224中關(guān)于其他符合標(biāo)準(zhǔn)油品的說(shuō)明。 CAUTION小心 Before changing from one lubricating oil type to another, contact Solar Turbines Customer Services.改變潤(rùn)滑油類型之前，聯(lián)系索拉透平客戶服務(wù)部門(mén)。 Petroleum oil consists of refined paraffinic basestock oil with suitable additives to

9、meet general physical and chemical requirements in Table 6.1.1 and unique physical and chemical requirements in Table 6.1.2. ISO VG 32 (S150) oil is recommended for use in cold to moderate climates.石油包含精細(xì)石蠟基油，它帶有合適的添加劑以滿足一般的物理及化學(xué)要求（見(jiàn)表6.1.1）及特殊物理及化學(xué)要求（見(jiàn)表6.1.2）。在寒冷的地區(qū)推薦使用ISO VG 32（S150）以適應(yīng)氣候要求。 Tabl

10、e 6.1.2 Unique Petroleum Oil ISO VG 32 (S150) Physical and Chemical Requirements 特殊潤(rùn)滑油 ISO VG 32(S150)物理及化學(xué)要求 ASTM Std. 美國(guó)材料試驗(yàn)協(xié)會(huì)標(biāo)準(zhǔn) Oil Properties油屬性 Minimum Requirements For New Oil新裝油最低要求 D445 Viscosity at +104°F (+40°C) SSU (cSt - mm2/s) Maximum在104華氏（40攝氏度）時(shí)粘性最大 165 (35.2) D445 Viscosit

11、y at +212°F (+100°C) SSU (cSt - mm2/s) Minimum在212華氏（100攝氏度）時(shí)粘性最小 43.0 (5.09) D92 Flash Point, COC, °F (°C) Minimum閃點(diǎn)最小 +390 (+199) D92 Fire Point, COC, °F (°C) Minimum燃點(diǎn)最小 +440 (+227) D97 Pour Point, °F (°C) Maximum沸點(diǎn)最大 +15 (-9.5) D664 Neutralization (Total Acid) Number, mgKOH/g Maximum

12、中和數(shù)最大 0.20 D1298 Specific Gravity, 60/60°F (15/15°C)比重 0.86-0.88 E659 Auto Ignition Temperature °F (°C) Minimum自然溫度最小 +590 (+310) D2270 Viscosity Index, Minimum粘性指示，最小 90 Petroleum oil operating temperature limits for ISO VG 32 (S150) oil are as follows:對(duì)于ISO VG 32(S150)油操作溫度如下： NOTE注意

13、Oil pour point shall be 11°F (6°C) below minimum ambient temperature limit.油沸點(diǎn)應(yīng)在11華氏（6攝氏度），低于適宜溫度限值。 · Operating oil temperature limits into engine, after a minimum of 30-minutes engine operation, are +110°F to +165°F (+43°C to +74°C).在引擎至少運(yùn)行30分鐘后，操作油溫度限值輸入引擎，由110華氏度到165華氏度。（43到74攝氏度）。 NOTE注意 Pet

14、roleum oil is suitable for preservation of the engine and components for a period of up to 90 days. Contact Solar Turbines Customer Services for special instructions for preservation if storage, shipping, or downtime longer than 90 days is expected.在最多90天時(shí)間內(nèi)，油用于引擎及部件的保護(hù)是適宜的。如果希望存儲(chǔ)、運(yùn)輸或者延長(zhǎng)超過(guò)90天，應(yīng)和索拉透平

15、服務(wù)部門(mén)聯(lián)系獲取特殊說(shuō)明。 6.1.3 Startup Limitations起動(dòng)限制 CAUTION小心 Solar equipment is not intended to operate above the maximum operating oil temperatures.索拉裝置不能夠在超過(guò)最大操作油溫度下工作。 The oil selected must have a pour point at least 11°F (6°C) below the minimum ambient temperature. Suitable heaters and auxiliary pu

16、mps are used to ensure proper oil viscosity in the system prior to startup.已選擇的油品在低于最小適宜溫度的情況下，必須具有至少11華氏（6攝氏度）的沸點(diǎn)。適宜的接頭及輔助泵用于確保在系統(tǒng)起動(dòng)之前有合適的油粘性。 6.1.4 Oil Service Life油服役壽命 NOTE注意 Analyze oil samples of new oil before use. The results of the analysis can then be used as a basis for comparison in d

17、etermining oil degradation during service life. Refer to Turbine Oil Analysis procedures in Subsection 6.4.3.使用之前分析新油品樣本。分析的結(jié)果用于作為決定服役期間油等級(jí)的基本比較數(shù)據(jù)。參考6.4.3所示的透平油分析流程。 The service life of oil is limited by a viscosity change, an increase in total acid number, or by the presence of water. Check oil on

18、 a regular basis (once a month) for contamination and degradation. Degradation varies with each application. Actual limits must be determined by customer experience. Oil must be drained and replaced whenever any of the following criteria is met:油品的服役壽命隨黏度、酸性物質(zhì)的增加或者水分的增加而變化。常規(guī)的油品檢查為污染及老化檢查。老化程度因不同的應(yīng)用

19、而有所不同。實(shí)際限值值由客戶經(jīng)驗(yàn)決定。無(wú)論什么時(shí)候滿足以下標(biāo)準(zhǔn)，則油品必須排干和更換。 · Viscosity increases by 20% (compared to new oil)黏度超過(guò)20%（與新油比較） · Viscosity decreases by 10% (compared to new oil)黏度超過(guò)10%（與新油比較） · Total acid number is 0.6 mg/KOH maximum總酸性物質(zhì)最高為0.6mg/KOH · Water content is 2000 parts per million maximum每一百萬(wàn)單位最大含水2000

20、單位 6.2 FUNCTIONAL DESCRIPTION功能描述 The following is a functional description of the lube oil system. For system normal or operating design values, refer to the Lube Oil System Schematic (149556).以下是潤(rùn)滑油系統(tǒng)的功能描述。系統(tǒng)的正?；蛘卟僮髟O(shè)計(jì)值，參考潤(rùn)滑油系統(tǒng)圖表（149556）。 6.2.1 General Lube Oil Flow通用潤(rùn)滑油流量 Lube oil is pumped

21、from Lube Oil Reservoir (R901) by Main Lube Oil Pump (P901) to the lube oil manifold. Oil pressure in the manifold is regulated by the Main Lube Oil Pressure Control Valve (PCV901).潤(rùn)滑油由主潤(rùn)滑油泵（P901）從儲(chǔ)存罐（R901）到潤(rùn)滑油歧路。歧路中油壓由主潤(rùn)滑油壓力控制閥（PC901）調(diào)節(jié)。 If the lube oil temperature is low, Temperature Control Valv

22、e (TCV901) diverts the flow of oil from Water/Oil Cooler (HX902-1). As the oil temperature rises, control valve TCV901 gradually directs the flow of oil into water/oil cooler HX902-1. From the cooler, oil flows through Main Lube Oil Filter Assembly (FS901) to the oil supply manifold and through vari

23、ous supply lines to points of lubrication.如果潤(rùn)滑油溫度低，則溫度控制閥（TCV901）轉(zhuǎn)而取自水/油冷卻器（HX902-1）的油流。當(dāng)油溫升高時(shí)，控制閥TCV901逐漸增大取自HX902-1的油流。從冷卻器，油流通過(guò)主潤(rùn)滑油過(guò)濾器裝置（FS901）到油歧路中，并通過(guò)各種油管線到達(dá)潤(rùn)滑點(diǎn)。 6.2.2 Lube Oil Pump Checks潤(rùn)滑油泵檢查 When the start cycle begins, the control system tests Backup Postlube Pump/Motor Assembly (BP903)

24、(Figure 6.2.1). If pump/motor assembly BP903 pressure reaches 4 psi (27.6 kPa), the control system deenergizes pump/motor assembly BP903 and energizes Pre/Post Lube Oil Pump (P902) (Figure 6.2.2). If pump P902 discharge pressure reaches 6 psi (41.3 kPa), the control system allows the engine prelube

25、cycle to begin.當(dāng)開(kāi)始起動(dòng)周期時(shí)，控制系統(tǒng)測(cè)試備用后潤(rùn)滑泵/馬達(dá)裝置（BP903）（圖6.2.1）。如果泵/馬達(dá)裝置BP903壓力達(dá)到4 psi（27.6Kpa）控制系統(tǒng)將切斷泵/馬達(dá)裝置BP903動(dòng)力，并激活前/后潤(rùn)滑油泵（P902）（圖6.2.2）。如果泵P902卸壓到6psi（41.3KPa），控制系統(tǒng)允許引擎預(yù)前潤(rùn)滑周期開(kāi)始。 Figure 6.2.1 Backup Postlube Pump Check圖6.2.1備用后潤(rùn)滑泵檢查 Figure 6.2.2 Pre/Post Lube Oil Pump Check圖6.2.2 前/后潤(rùn)滑油泵檢查 6.2.

26、3 Prelube Cycle前潤(rùn)滑周期 After the lube oil pump checks are completed, the prelube timeout timer (60 seconds) is started (Figure 6.2.3). The prelube timeout timer is the allowable time for pump P902 to complete the prelube cycle. When the lube oil pressure is greater than the prelube low pressure limit

27、 of 6 psi (41.3 kPa), the prelube timer (30 seconds) is started. The engine must be prelubed at a pressure above 6 psi (41.3 kPa) continuously for the duration of the prelube timer (30 seconds). This prelube must occur within the time of the prelube timeout timer (60 seconds). If the prelube timer t

28、imes out before the prelube is done, the start is aborted and a prelube-failed fast-stop, nonlockout alarm is annunciated.在潤(rùn)滑油泵檢查完畢后，前潤(rùn)滑超時(shí)定時(shí)器（60秒）啟動(dòng)（圖6.2.3）。前潤(rùn)滑超時(shí)定時(shí)器時(shí)間允許泵P902完成前潤(rùn)滑周期。當(dāng)潤(rùn)滑油壓力大于前潤(rùn)滑低壓限值6psi（41.3Kpa），前潤(rùn)滑定時(shí)器（30秒）啟動(dòng)。前潤(rùn)滑定時(shí)器的時(shí)間內(nèi)，引擎必須在連續(xù)的6psi以上壓力下進(jìn)行潤(rùn)滑。前潤(rùn)滑必需發(fā)生在前潤(rùn)滑定時(shí)器（60秒）規(guī)定的時(shí)間之內(nèi)。如果前潤(rùn)滑定時(shí)器在潤(rùn)滑完成之前

29、超時(shí)，則放棄起動(dòng)，引發(fā)前潤(rùn)滑故障快速停止非閉鎖報(bào)警。 Figure 6.2.3 Prelube Cycle圖6.2.3前潤(rùn)滑周期 6.2.4 Engine Running引擎運(yùn)行 After the prelube cycle is completed, pump P902 deenergizes when the engine is above starter dropout speed and the lube oil pressure is at or above 35 psi (241 kPa). At this point, engine-driven pump P901

30、begins providing lube oil pressure and continues to the steady-state condition (Figure 6.2.4). After engine-driven pump P901 reaches the steady-state condition, the lube oil schedule becomes active.在前潤(rùn)滑周期完成后，當(dāng)引擎超過(guò)起動(dòng)器跳脫速度并且潤(rùn)滑油壓超過(guò)35psi（241KPa）時(shí)，泵P902切斷動(dòng)力。此點(diǎn)，引擎驅(qū)動(dòng)馬達(dá)P901開(kāi)始提供潤(rùn)滑油壓力并進(jìn)入穩(wěn)態(tài)（圖6.2.4）。在引擎驅(qū)動(dòng)泵P901達(dá)

31、到穩(wěn)態(tài)時(shí)，潤(rùn)滑油調(diào)節(jié)開(kāi)始激活。 During the steady-state engine running condition, pump P902 energizes when:在引擎運(yùn)行穩(wěn)態(tài)期間，當(dāng)以下情況時(shí)泵P902恢復(fù)動(dòng)力： · Engine is below starter dropout speed and the lube oil pressure is at or below 25 psi (172.25 kPa)引擎低于起動(dòng)器跳脫速度，潤(rùn)滑油壓力不大于25psi（172.25kPa）。 · Engine speed of greater than 5% engine

32、speed (Ngp) is detected.引擎速度大于5%NGP。 Pump P902 will not be annunciated as failed during the steady-state engine running condition when the lube oil pressure is less than the postlube low pressure shutdown limit, because pump P901 may be at fault.穩(wěn)態(tài)期間，當(dāng)潤(rùn)滑油壓力小于后潤(rùn)滑壓力關(guān)斷限值時(shí)，泵P902不會(huì)引發(fā)故障，因?yàn)楸肞901可能也處于故障狀態(tài)。

33、 Figure 6.2.4 Engine Running – Starting引擎運(yùn)行-----起動(dòng) 6.2.5 Run Protection運(yùn)行保護(hù) During steady-state engine running, the control system provides run protection (Figure 6.2.5) to the engine by energizing pump/motor assembly BP903 any time the lube oil pressure is below the lube oil pressure low alarm

34、 limit. When the lube oil pressure is no longer below the lube oil pressure low alarm limit, pump/motor assembly BP903 continues to run for 30 seconds and is then deenergized. The following three situations may arise:在引擎穩(wěn)態(tài)運(yùn)行期間，只要潤(rùn)滑油壓力低于潤(rùn)滑油壓力報(bào)警限值，則控制系統(tǒng)通過(guò)切斷泵/馬達(dá)裝置BP903的動(dòng)力，提供引擎運(yùn)行保護(hù)（圖6.2.5）。當(dāng)潤(rùn)滑油壓力不再低于潤(rùn)滑油

35、壓力低報(bào)警限值時(shí)，泵/馬達(dá)裝置BP903繼續(xù)運(yùn)行30秒時(shí)間然后切斷動(dòng)力?？赡芤l(fā)以下三種情況： · If the lube oil pressure continues to decrease below the lube oil pressure low alarm limit to the low lube oil pressure shutdown limit, a fast stop, lockout engine shutdown is initiated, and pump/motor assembly BP903 contributes to protecting the en

36、gine bearings during the engine shutdown (Figure 6.2.6).如果潤(rùn)滑油壓力連續(xù)降低，低于潤(rùn)滑油壓力低報(bào)警限值到達(dá)低潤(rùn)滑油關(guān)斷限值時(shí)，引發(fā)快速同志閉鎖引擎關(guān)斷，在引擎關(guān)斷期間，泵/馬達(dá)裝置BP903持續(xù)保護(hù)引擎軸承（圖6.2.6）。 · If the lube oil pressure continues to decrease below the lube oil pressure low alarm limit but stabilizes between the low lube oil pressure low alarm limit

37、 and the low lube oil pressure shutdown limit continuously for 5 seconds, a fast stop, nonlockout engine shutdown is initiated, and pump/motor assembly BP903 contributes to protecting the engine bearings during the engine shutdown (Figure 6.2.7).如果潤(rùn)滑油壓力連續(xù)降低于壓力低報(bào)警限值，但是在低報(bào)警限值和低關(guān)斷限值之間穩(wěn)定下來(lái)并持續(xù)5秒鐘，則引發(fā)快速停止

38、非閉鎖關(guān)斷，在關(guān)斷期間，泵/馬達(dá)裝置BP903持續(xù)保護(hù)引擎軸承。 · If the lube oil pressure increases above the lube oil pressure low alarm limit, and after 30 seconds or when pump/motor assembly BP903 is deenergized, lube oil pressure once again decreases, an alarm is initiated and pump/motor assembly BP903 is once again energiz

39、ed.如果潤(rùn)滑油壓力升高超過(guò)潤(rùn)滑油壓力低報(bào)警限值，在30秒鐘后或者當(dāng)泵/馬達(dá)裝置BP903切斷動(dòng)力時(shí)，潤(rùn)滑油壓力一旦再次升高，則引發(fā)報(bào)警且泵/馬達(dá)裝置BP903再次激活。 Figure 6.2.5 Run Protection – Normal運(yùn)行保護(hù)-----正常 Figure 6.2.6 Run Protection - Lube Oil Pressure Below Shutdown Limit 運(yùn)行保護(hù)---------潤(rùn)滑油壓力低于關(guān)斷限值 Figure 6.2.7 Run Protection - Lube Oil Pressure Stabilized Low

40、 運(yùn)行保護(hù)------------潤(rùn)滑油壓力穩(wěn)定低值 6.2.6 Backup Postlube Pump Checks備用后潤(rùn)滑泵檢查 There are two types of functional checks to verify the operation of the backup postlube pump/motor assembly BP903. The first is an automatic check, that the control system performs on a daily basis; the second an operator initia

41、ted manual check.有兩種類型的方法用于校驗(yàn)后潤(rùn)滑泵/馬達(dá)裝置BP903的操作。第一種為自動(dòng)檢查，此種方法為控制系統(tǒng)每日檢查；第二種為操作員啟動(dòng)手動(dòng)檢查。 AUTOMATIC BACKUP POSTLUBE PUMP CHECK自動(dòng)備用后潤(rùn)滑泵檢查 The operation of pump/motor assembly BP903 is checked automatically every 24 hours. Every day at 12:00 pm, a backup pump check is annunciated, indicating that a check

42、 of pump/motor assembly BP903 has been initiated. Pump/motor assembly BP903 is energized. When pump/motor assembly BP903 has increased lube oil pressure above the minimum setpoint for 90-seconds, pump/motor assembly BP903 is deenergized and the backup pump check ends.泵/馬達(dá)裝置BP903的操作每24小時(shí)檢查一遍。每天12點(diǎn)，引發(fā)

43、備用泵檢查，表明泵/馬達(dá)裝置BP903檢查開(kāi)始。泵/馬達(dá)裝置BP903得動(dòng)力。當(dāng)泵/馬達(dá)裝置BP903增加潤(rùn)滑油壓力超過(guò)最小設(shè)定點(diǎn)90秒鐘，則泵/馬達(dá)裝置BP903切斷動(dòng)力備用泵檢查結(jié)束。 If the minimum pressure is not reached within 30-seconds of pump/motor assembly BP903 being energized, pump/motor assembly BP903 deactivates, the backup pump check ends, and backup pump check fail is annu

44、nciated.如果泵/馬達(dá)裝置BP903得到動(dòng)力后在30秒鐘內(nèi)沒(méi)有達(dá)到最小壓力，泵/馬達(dá)裝置BP903失去動(dòng)力，備用泵檢查結(jié)束，告知備用泵檢查失敗。 MANUAL BACKUP POSTLUBE PUMP CHECK手動(dòng)備用后潤(rùn)滑泵檢查 Operation of pump/motor assembly BP903 can be checked manually by selecting the backup postlube pump check on the control panel. The sequence of events for manually checking the

45、operation of pump/motor assembly BP903 are the same as the automatic check above. 泵/馬達(dá)裝置BP903的操作可以通過(guò)選擇控制盤(pán)上的備用潤(rùn)滑泵檢查來(lái)手動(dòng)檢查。手動(dòng)檢查泵/馬達(dá)裝置BP903的流程與上面自動(dòng)檢查相同。 6.2.7 Lube Oil Pressure Schedule潤(rùn)滑油壓力調(diào)節(jié) The low lube oil pressure shutdown limit is 4 psi (27.6 kPa) and the low lube oil pressure alarm limit is 6 p

46、si (41.3 kPa) between the completion of the prelube cycle and the starter dropout speed. Ten seconds after starter dropout speed has been achieved, if the pressure is below 41 psi (282.5 kPa), a low lube oil pressure alarm is annunciated. If the pressure is below 25 psi (172.25 kPa), a fast stop, no

47、nlockout engine shutdown is initiated (Figure 6.2.8).在前潤(rùn)滑周期完成之后，起動(dòng)器達(dá)到跳脫速度之前，低潤(rùn)滑油壓力關(guān)斷限值為4psi（27.6kPa），低潤(rùn)滑油壓力報(bào)警限值為6psi（41.3kPa）。在達(dá)到跳脫速度10秒鐘后，如果壓力低于41psi（282.5），引發(fā)低潤(rùn)滑油壓力報(bào)警。如果壓力低于25psi（172.25kPa），啟動(dòng)快停非閉鎖引擎關(guān)斷。（圖6.2.8） Figure 6.2.8 Lube Oil Pressure Schedule潤(rùn)滑油壓力調(diào)節(jié) 6.2.8 Postlube Cycle后潤(rùn)滑周期 The postl

48、ube cycle begins when the rundown timer (6 minutes) has expired. Initially, pump P902 is deactivated to allow a check of pump/motor assembly BP903 to take place (Figure 6.2.9). A 30-second pressure decay timer is started to allow the lube oil pressure to drop to 5 psi (34.4 kPa). If the pressure dec

49、ay timer expires before the pressure drop occurs, the start is aborted and a backup pump fail alarm is annunciated.當(dāng)溢出定時(shí)器（6分鐘）定時(shí)時(shí)間到，后潤(rùn)滑周期開(kāi)始。泵P902立即切斷動(dòng)力并允許泵/馬達(dá)裝置BO903檢查（圖6.2.9）。30秒壓力延遲定時(shí)器啟動(dòng)并允許潤(rùn)滑油壓力降到5psi（34.4kPa）。如果在壓力下降之前壓力延遲定時(shí)器時(shí)間到，則放棄起動(dòng)并引發(fā)備用泵故障報(bào)警。 While the engine is in the postlube cycle, if pump

50、 P902 fails to keep the lube oil pressure above the postlube low lube oil pressure shutdown limit, a pump failure is annunciated on the control panel. Pump/motor assembly BP903 takes over the postlube and pump P902 deactivates. However, pump P902 can be energized to take over the postlube by acknowl

51、edging and resetting the alarm.當(dāng)引擎處于后潤(rùn)滑周期時(shí)，如果P902故障不能保持潤(rùn)滑油壓力高于后潤(rùn)滑低潤(rùn)滑油壓力關(guān)斷限值，則引發(fā)控制盤(pán)泵故障。泵/馬達(dá)裝置BP903接管后潤(rùn)滑同時(shí)泵P902失去動(dòng)力。然而，通過(guò)確認(rèn)及復(fù)位報(bào)警，泵P902得到動(dòng)力以接管后潤(rùn)滑。 Figure 6.2.9 Backup Postlube Pump Check - Postlube Cycle備用后潤(rùn)滑泵檢查-----后潤(rùn)滑周期 During the time if the lube oil pressure is less than the postlube low lube o

52、il pressure shutdown limit, the postlube timer stops.如果潤(rùn)滑油壓力小于后潤(rùn)滑低潤(rùn)滑油壓力關(guān)斷限值，則后潤(rùn)滑定時(shí)器停止。 6.2.9 Postlube Scenarios后潤(rùn)滑情況 The following are five distinct postlube scenarios which may be initiated:以下是五種可能引發(fā)的后潤(rùn)滑情況： POSTLUBE AFTER SHUTDOWNS BEFORE ENGINE TURNS在關(guān)斷后引擎盤(pán)車(chē)之前后潤(rùn)滑 If the prelube has been comple

53、ted, but the starter motor has not yet been engaged, and the engine is stopped, the rundown timer is not triggered and postlube will not be initiated, unless the engine was in postlube prior to the initiation of the failed start. In this case, the postlube will continue from the accumulated time fro

54、m before the start was initiated.如果前潤(rùn)滑已經(jīng)完成，但是起動(dòng)器馬達(dá)并沒(méi)有動(dòng)作，引擎停止，溢出定時(shí)器未被觸發(fā)，則后潤(rùn)滑將不能開(kāi)始，除非出現(xiàn)故障起動(dòng)之前引擎已經(jīng)處于后潤(rùn)滑狀態(tài)。在這種情況下，起動(dòng)器開(kāi)始之前，后潤(rùn)滑將從已累加的時(shí)間開(kāi)始繼續(xù)。 POSTLUBE AFTER SHUTDOWNS FROM SPEEDS BELOW FIVE PERCENT發(fā)動(dòng)機(jī)關(guān)斷后，速度低于5%時(shí)的后潤(rùn)滑 If the starter motor has been engaged, but the engine is shut down before 5% engine speed

55、 (Ngp), the rundown timer is reset so the engine is lubed for the duration of the rundown timer. Postlube will not be initiated unless the engine was in postlube prior to the initiation of the failed start. In this case, the postlube will continue from the accumulated time from before the start was

56、initiated.如果起動(dòng)器已經(jīng)動(dòng)作，但是引擎在5%NGP之前關(guān)斷，則溢出定時(shí)器復(fù)位，引擎被持續(xù)潤(rùn)滑。后潤(rùn)滑將不能開(kāi)始，除非出現(xiàn)故障起動(dòng)之前引擎已經(jīng)處于后潤(rùn)滑狀態(tài)。 POSTLUBE AFTER SHUTDOWNS FROM SPEEDS ABOVE FIVE PERCENT AND BEFORE ENGINE LIGHTOFF發(fā)動(dòng)機(jī)關(guān)斷后，速度高于5%且引擎點(diǎn)火器失電之前的后潤(rùn)滑 If the engine is started and an engine shutdown is initiated after 5% Ngp, but before lightoff has been

57、achieved, the engine is lubed for the time it takes the Ngp to drop below five percent plus the duration of the rundown timer. Postlube will not be initiated unless the engine has been in postlube prior to the initiation of the failed start. In this case, the postlube will continue from the accumula

58、ted time from before the start was initiated.如果引擎已經(jīng)啟動(dòng)并且在5%NGP以后關(guān)閉引擎啟動(dòng)，但是在點(diǎn)火器失電完成之前，則引擎的潤(rùn)滑時(shí)間為NGP下降到5%的時(shí)間加上溢出定時(shí)器的時(shí)間。后潤(rùn)滑將不會(huì)啟動(dòng)，除非出現(xiàn)起動(dòng)故障之前引擎已經(jīng)處于后潤(rùn)滑狀態(tài)。這種情況下，后潤(rùn)滑將從起動(dòng)器開(kāi)始之前已累加的時(shí)間開(kāi)始繼續(xù)。 POSTLUBE AFTER SHUTDOWNS WHEN LIGHTOFF HAS OCCURRED發(fā)動(dòng)機(jī)關(guān)斷后，當(dāng)點(diǎn)火器失電時(shí)的后潤(rùn)滑 If the engine has achieved lightoff (defined as the T

59、5 average temperature exceeding 400°F [204.4°C]), a full postlube is required. The full postlube lasts for 55 minutes, with the alarm and shutdown pressures as follows: · Low Lube Oil Pressure Shutdown - 6 psi (41.3 kPa) · Low Lube Oil Pressure Alarm - 8 psi (55.1 kPa) · High Lube Oil Pressure Al

60、arm - 25 psi (172.25 kPa) 如果引擎完成了點(diǎn)火器失電（定義為T(mén)5的平均溫度超過(guò)400°F [204.4°C])，則需要一個(gè)完全的后潤(rùn)滑。伴隨如下報(bào)警和關(guān)斷壓力，完全后潤(rùn)滑持續(xù)55分鐘： · 潤(rùn)滑油壓力低關(guān)斷- 6 psi (41.3 kPa) · 潤(rùn)滑油壓力低報(bào)警- 8 psi (55.1 kPa) · 潤(rùn)滑油壓力高報(bào)警- 25 psi (172.25 kPa) POSTLUBE IN THE EVENT OF FIRE火災(zāi)情況下的后潤(rùn)滑 If an engine shutdown is initiated due to a fire, the eng

61、ine is lubed until the rundown timer (6 minutes) expires. The postlube is then automatically postponed for 20 minutes. However, the postlube can be initiated manually during this time period by acknowledging and resetting the alarm. After the 20 minutes has expired, a postlube is automatically initi

62、ated. If a postlube is not desired, the postlube can be stopped manually. If the engine has been without postlube for longer than 20 minutes, a alarm is annunciated. Such an event would require investigation of possible bearing damage.如果因?yàn)榛馂?zāi)而起動(dòng)引擎關(guān)斷，則對(duì)引擎的潤(rùn)滑直到溢出定時(shí)器時(shí)間到（6分鐘）。后潤(rùn)滑此時(shí)自動(dòng)延遲20分鐘。然而，這期間能通過(guò)確認(rèn)和復(fù)位

63、報(bào)警手動(dòng)起動(dòng)后潤(rùn)滑。20分鐘延遲結(jié)束后，后潤(rùn)滑將自動(dòng)起動(dòng)。如果不需要后潤(rùn)滑，可以手動(dòng)停止后潤(rùn)滑。如果引擎超過(guò)20分鐘沒(méi)有被后潤(rùn)滑，將出現(xiàn)“BEARING INSPECTION MAY BE REQUIRED（需要檢查軸承）”的報(bào)警。這種情況就要分析軸承受損壞的可能性。 6.3 COMPONENT DESCRIPTIONS組成描述 Component descriptions are arranged in alphanumeric order by reference designator number. The reference designator number is withi

64、n parentheses and follows the component name. The location for components in the following descriptions refer to the functional location of the component, not the physical location. For more information, refer to the Lube Oil System Schematic (149556).組成描述用參考手冊(cè)指定的號(hào)碼。參考手冊(cè)指定的號(hào)碼和組成名稱用圓括號(hào)括起來(lái)。下面描述的組成位置涉及

65、到組成的功能位置，并不是實(shí)際位置。更多的信息在潤(rùn)滑油系統(tǒng)示意里（149556）。 6.3.1 Pre/Post Lube Oil Pump Motor預(yù)/后潤(rùn)滑油泵馬達(dá) Pre/Post Lube Oil Pump Motor (B321), connected to Pre/Post Lube Oil Pump (P902) by a coupling, is a continuous-duty, squirrel-cage, three-phase electric motor. The motor is used to drive pump P902. 通過(guò)一個(gè)聯(lián)結(jié)連接到預(yù)/后潤(rùn)滑油

66、泵（P902）的預(yù)/后潤(rùn)滑油泵馬達(dá)（B321），是一個(gè)連續(xù)工作制的三相鼠籠電動(dòng)機(jī)。馬達(dá)用來(lái)驅(qū)動(dòng)泵P902。 6.3.2 Backup Postlube Motor備用后潤(rùn)滑馬達(dá) Backup Postlube Motor (B322) is part of Backup Postlube Pump/Motor Assembly (BP903). The motor is used to drive the backup postlube pump.備用后潤(rùn)滑馬達(dá)（B322）是備用后潤(rùn)滑泵/馬達(dá)裝置（BP903）的一部分。馬達(dá)用來(lái)驅(qū)動(dòng)備用后潤(rùn)滑泵。 6.3.3 Backup Postlube Pump/Motor Assembly備用后潤(rùn)滑泵/馬達(dá)裝置 Backup Postlube Pump/Motor Assembly (BP903) is mounted on the tank lid of Lube Oil Reservoir (R901). The pump is coupled to Backup Postlube Motor (B322). The pump del