外文翻譯----低壓透平油純電調(diào)與高壓抗燃油純電調(diào)比較

1、<p>　　低壓透平油純電調(diào)與高壓抗燃油純電調(diào)比較</p><p>　　概 述　　汽輪機(jī)數(shù)字電液控制系統(tǒng)（DEH），分高壓抗燃油純電調(diào)和低壓透平油純電調(diào)兩大類。　　高壓抗燃油純電調(diào)是隨著引進(jìn)西屋汽輪機(jī)制造技術(shù)而進(jìn)入我國(guó)，因而廣為人知。高壓抗燃油純電調(diào)DEH，克服了傳統(tǒng)液壓調(diào)節(jié)系統(tǒng)存在的缺陷，能采用靈活的控制策略以適應(yīng)多種運(yùn)行工況自動(dòng)化控制的要求，為適應(yīng)機(jī)爐協(xié)調(diào)控制（CCS）和自動(dòng)發(fā)電控制（

2、AGC）打下基礎(chǔ)。由于高壓抗燃油純電調(diào)具有上述特點(diǎn)，因而被廣泛應(yīng)用于300MW以上大型機(jī)組的控制系統(tǒng)。近年來(lái)，高壓抗燃油純電調(diào)技術(shù)又被推廣到200MW機(jī)組的調(diào)節(jié)系統(tǒng)改造，收到較好效果。 　　但是，高壓抗燃油純電調(diào)也存在一些先天不足，影響到它的進(jìn)一步推廣。主要不足之處如下：■ 系統(tǒng)結(jié)構(gòu)復(fù)雜，制造成本高?！?#160;對(duì)油質(zhì)清潔度要求很高，油品需要不斷再生，運(yùn)行維護(hù)費(fèi)用高?！?#160;電液伺服閥容易卡澀，需要常

3、備備件，增加了運(yùn)行成本。■ 需配備外置式液壓油源，不但增加了設(shè)備費(fèi)用和運(yùn)行維護(hù)費(fèi)用，而且安全性不如透平油液壓油源。透平油液壓系統(tǒng)與潤(rùn)滑系統(tǒng)共用油源，主油泵由主軸驅(qū)動(dòng)，只要汽輪機(jī)在轉(zhuǎn)，就不會(huì)有失壓?jiǎn)栴}?！?#160;抗燃油有毒性，長(zhǎng)期大量使用抗燃油將為環(huán)境保護(hù)所不容。　　上述不足之</p><p>　　Low pressure the deeply even oil be pure electric

4、ity to adjust with the high pressure anti- fuel pure electricity adjust comparison</p><p>　　A, all say</p><p>　　Vapor round machine numeral electricity liquid control system(DEH), cent the high

5、pressure anti- fuel pure electricity in harmony with low pressure deeply even oil pure electricity adjust two major types.</p><p>　　The high pressure anti- fuel is pure electricity to adjust is along with us

6、her in the west house vapor round's mechanism to build a technique but get into our country, as a result wide behavior know.The high pressure anti- fuel is pure electricity to adjust DEH and overcame tradition the li

7、quid press blemish that regulate system's existence, ability adoption vivid of control strategy with orientation variety circulate work condition automation control of request, is orientation machine stove mod</p&

8、gt;<p>　　But, the high pressure anti- fuel be pure electricity to adjust also existence some inborn shortage, influence arrive it of further expansion.Main place of the shortage is as follows:</p><p>

9、　　System structure complications, manufacturing cost Gao.</p><p>　　To oiliness cleanness' request very Gao, oil article demand continuously rebirth, circulate maintenance expenses Gao.</p><p&g

10、t;　　Electricity liquid servovalve easy card Se, demand often have spare parts, increment circulate cost.</p><p>　　Need a place type liquid to press an oil source out of the equipment, not only increment equi

11、pments expenses and circulate maintenance expenses, and safety not equal to the deeply even oil liquid press an oil source.The deeply even oil liquid press system and lubricate system total use an oil source, lord oil pu

12、mp is drive by the principal axis, as long as the vapor round machine be turn, will not have already lost to press a problem.</p><p>　　The anti- fuel poison, long-term a great deal of use anti- fuel will is

13、allow of no by environmental protection.</p><p>　　Above-mentioned shortage of place, in the 125 MW, 100 MW...etc. small capacity machine set of automation reformation top reflection is outstanding.Along with

14、 charged barbed wire net capacity of enlarge, these gradual get in to adjust Feng circulate, moderate control and AGC control of request speak of agenda, but expensive the high pressure anti- fuel pure electricity adjust

15、 is these customers be hard to accept and therefore have necessity development economy apply of low pressure deeply even oi</p><p>　　Our country once ushered in an excessive pedestal a day to sign a machine

16、set, for example head the sun mountain 300 MW machine set, it control the system be an adoption low pressure the deeply even oil be pure electricity to adjust and use more economy credibility of way, complete come to a t

17、he high pressure anti- fuel pure electricity adjust of control level, customer reflection satisfied.Low pressure the deeply even oil be pure electricity to adjust technique of application, can make manufact</p>&l

18、t;p>　　Low pressure the deeply even oil be pure electricity to adjust of application, the key lie in electricity liquid conversion solve of hard nut to crack.With benefit company successfully application the MOOG compa

19、ny be recently to release of direct drive type electricity liquid servovalve, namely DDV valve, successfully solved electricity liquid conversion of hard nut to crack, for low pressure the deeply even oil be pure electri

20、city to adjust of development and application develop vast of foregro</p><p>　　DDV valve of application, not only solved low pressure the deeply even oil be pure electricity to adjust electricity liquid conv

21、ersion problem and solved the high pressure anti- fuel in the meantime pure electricity adjust the servovalve card Se problem, for DEH business of development made a major contribution.</p><p>　　Two, the pur

22、e electricity adjust of basic concept</p><p>　　Generally speaking, DEH control system from two big part constitute, namely controller part and performance machine part.Controller parts of realization control

23、 system of control strategy;Performance machine part performance controller of control result, fixed position regulate organization.</p><p>　　Vapor round the liquid of the machine press controller of regulat

24、e the system and include to adjust soon a machine, synchronous machine, in the center enlarge slide valve etc. parts, realization turn soon measure, the deviation enlarge etc. control strategy, press controller for the l

25、iquid.The oil motive is a performance machine, accept controller of the liquid press signal and the fixed position regulate a valve.</p><p>　　Vapor round machine electricity the liquid regulate the controlle

26、r of system, is numeral type DEH controller, realization turn to soon regulate, burden control, new vapor pressure control and machine stove moderate control etc. variety control strategy, its output's total valve si

27、gnal is electricity quantity signal, should the signal has been give or get an electric shock the liquid enlarge, drive a liquid to press performance machine, namely oil motive;Can also direct drive electricity liquid p&

28、lt;/p><p>　　DEH controller and electricity liquid oil motive match, constitute pure electricity adjust.</p><p>　　Perhaps, the DEH controller pass electricity liquid enlarger control oil motive and

29、constitute pure electricity adjust.</p><p>　　Be performance machine, oil motive should ability accept three kinds of signal of control, namely normal control, quick pass control with hide to break control. &

30、lt;/p><p>　　Press oil motive but speech to the liquid, normal control, the liquid come by modulator press signal to pass in the center enlarge slide valve, control oil motive, fixed position regulate valve;When

31、 the occurrence jilt burden, OPC system control exceed the speed limit restriction slide valve or differential calculus machine, pass in the center enlarge slide valve temporarily quick pass each adjust an oil motive, wi

32、th restriction the machine set turn soon a dynamic state to fly to rise;When the o</p><p>　　The electricity liquid regulate the oil motive in the system, also existence above-mentioned 3 connect and be an ad

33、option an electricity liquid servovalve control several oil motive, of each oil motive of relation be like the liquid adjust system, is fix;When adoption each oil motive from an electricity liquid servovalve control, 3 c

34、onnect to be given each oil motive then and make each oil motive ability independence completion normal control, quick pass with hide to break three kinds of mission</p><p>　　The high pressure anti- fuel pur

35、e electricity adjust adoption of oil motive, is typical model of electricity liquid oil motive, each oil motive can alone performance normal control, quick pass with hide to break action;Can accept a valve door a managem

36、ent software control, realization fix go together with of mode and variable mode vapor management.This text recommend of low pressure deeply even oil electricity liquid oil motive, according to the high pressure anti- fu

37、el electricity liquid oil mo</p><p>　　Three, concerning valve door management</p><p>　　Want to be specialized discussion once here valve door management of practical value.Valve door management

38、is a Xi Wu company to release of a kind of control function, is 1 kind used for the high pressure anti- fuel pure electricity adjust of the software go together with a vapor way, usually is high pressure enter the vapor

39、reduce expenses to regulate with spray Ju to regulate two kinds of way of mutually have no Rao conversion, can give attention to both start fast and part burden economy of r</p><p>　　1) settle to press to ci

40、rculate, take basic burden</p><p>　　At this kind of circulate under the way, regulate valve close whole open, reduce expenses to regulate with spray Ju to regulate differentiation not big.</p><p&g

41、t;　　2) slippery press to circulate, adjust Feng</p><p>　　At this kind of circulate under the way, regulate valve also close whole open, reduce expenses to regulate with spray Ju to regulate also differentiat

42、ion not big.</p><p>　　3) settle to press to circulate, adjust Feng</p><p>　　At this kind of circulate under the way, depend change the valve door open a degree to adjust burden, spraying Ju regu

43、late is better than reduce expenses regulate economy, adoption valve door management is meaningful.But, this is a kind of seldom use of circulate a way.The cam which press mixture to regulate a way design go together wit

44、h vapor organization an ability orientation this kind of circulate way.</p><p>　　The vapor round cam with in common use machine go together with vapor organization, since not is to purely reduce expenses to

45、regulate, also is to purely spray Ju to regulate, but a kind of mixture regulate a way, usually is so design of:At the low burden stage, 1#, 2# adjust a door to open in the meantime;1#, 2# adjust the door as symmetry dec

46、oration, can assurance high pressure urn enter vapor part be subjected to hot even, assurance start process of fast;1#, 2# adjust a door close open foot, </p><p>　　Low pressure the deeply even oil be pure el

47、ectricity to adjust, Be have as follows a characteristics:</p><p>　　The system is simple and direct, the manufacturing craft match a vapor round the equipments condition of the machine factory, and the manuf

48、acturing cost be low. </p><p>　　Old machine set reformation, can make use of a machine set oil motive for originally possessed and liquid to press an oil source.</p><p>　　The liquid press system

49、 an easy Sun piece little, life span long, circulate maintenance expenses low.</p><p>　　The deeply even oil liquid of adoption normal regulations press an oil source, don't need another go together with

50、outside the place type oil source station.The normal regulations deeply even oil oil source lord oil pump is drive by the vapor round machine principal axis, it credibility Gao in outside the place type oil source statio

51、n.</p><p>　　The DDV type that the adoption MOOG company is recently to release electricity liquid servovalve, control accuracy Gao, anti- pollution the ability be strong.</p><p>　　The electricit

52、y liquid enlarger constitute by DDV valve and electricity liquid oil motive, fixed position precision, intelligent degree Gao, credibility good, anti- pollution ability better than the high pressure anti- fuel electricit

53、y liquid oil motive.</p><p>　　Need not anti- fuel, environmental protection characteristic good.</p><p>　　Conclusion:</p><p>　　1) Is orientation in small scaled machine set DEH refo

54、rmation, development low pressure deeply even oil pure electricity adjust to have importance meaning.200 MW and the following machine set belong to medium small machine set scope.</p><p>　　2) Because pure el

55、ectricity adjust control system of control the strategy be decided by calculator electronics controller, therefore, in addition to variable mode valve door management outside, low pressure deeply even oil pure the oil ad

56、just an ability realization the high pressure anti- fuel pure electricity adjust of all function. </p><p>　　3) Practice medium, valve door management characteristic and cam go together with vapor machine equ