水轮机调速器与油压装置技术条件 GB T 96521-1997 (英文版)

1、 GBT 9652.11 997 Specifications of governors and instead of GB 965288 pressure oil supply units for hydraulic turbines A ScopeThis standard be applicable to work capacity 350 N·M and above of hydraulic turbine governors, include the machine hydraulic governor( below brief name the machine gover

2、nor) , the electricity hydraulic governor ( below the brief name electricity governor) and oil set. B Sources of standards Rules include in following standard , constitute for the ruling of this standard pass quote in this standard.This standard publication, show edition all is valid.All standard wo

3、uld drive revise, usage origin standard of everyone should study latest version. GB l5089 Steel bomb GB 379788 The electricity control equipments The second part:the electricity control equipments which have an electronics spare part GB 458889 Technique condition of List and two-sided printed board

4、GBl088689 Three screw pump pattern and basic parameter GBlll2089 LTSA Steam turbine motor oil JBT 80911995 Experiment method of screw pump C Work conditions Each static state and dynamic state characteristic index sign of regulate system for rule of this standard all fasten under the following condi

5、tions：C.1 Governors and oil sets selected by hydraulic turbine should reasonable C The biggest route of travel of servo should fit to guide vane opening .In the rightness, small scaled and especially small scaled governors, actual guide vane biggest opening degree should above 80% of the biggest rou

6、te of travel of servo at least. C.1.2 Work capacity of governors and oil sets selected reasonable.C2 Generator set of hydraulic turbine circulate normal C21 Hydraulic turbine circulate under the condition of manufactory provision. C22 Measure speed signal source, Hydraulic turbine guide water organi

7、zation, turn leaf's organization , needle and baffler organization , adjust soon stalk and feedback move organization should have no blemish in manufacturing and install, and should match the technique of each parts request C23 Hydraulic turbine generator set circulate stability in hand move or

8、under various work condition. circulate in hand move empty carry work condition (generator set excitation work under auto way), Hydraulic turbine generator set speed swing opposite value of large governors not exceed ± 0.2%;for the rightness, small scaled and especially small scaled governors a

9、ll not exceed ± 0.3%C3 water current inertial time Tw of hydraulic turbine guide water system contrast the proportion calculus integral calculus differential calculus(PID) type governors is no bigger than 4 s; contrast the proportion calculus integral calculus (PI) type governors is no bigger t

10、han a 2.5 s, and the specific value of the water current inertial time constant Tw and machine set inertial time constant Ta is , the Ta of the set is no smaller than 4 s for counter-attack type machine set, the Ta of the set is no smaller than 2 S for impulse type machine set . C4 Elevation height

11、not over 2500 m。C5 Governor surroundings air temperature a) The tallest air temperature of dissimilarity elevation height see form l. form1Elevation height，m1000100015001500200020002500The tallest air temperature，4035b) Lowest air temperature is 5。C6 Air relative humidity: the biggest relative humid

12、ity of the most wet month of month average is 90%, in the meantime this month of month average lowest temperature is 25 C7 The quality of governor system use oil have to match the No.46 Steam turbine motor oil in GB 11120 or provision of glue degree same kind type oil , the oil temperature scope is

13、10C50.C8 Hydraulic-pneumatic variety value not exceed name work hydraulic-pneumatic soil 10% in the process of regulate. for flow type governor system doesn't exceed soil 15%.C9 Adjust before experiment, should expel possibility existence of blemish of governor system , such as the dead area of

14、machine spread move system, Hydraulic system possibility existence air etc.C10 If above-mentioned work condition disaffection request, relevant index sign can from both supply and demand parties consultationD Technique request D1 The product should match product standard of request, and according to

15、 provision procedure approval of drawing and document manufacturing. D2 Should assurance servo capacity of governor system attain design provision value. D3 Static state characteristic of governor system should match following provision. D31 The static state characteristic curve should look like for

16、 the straight line. D32 Speed dead area of main servo not exceed provision value in form 2.Governor typeItemLargeMiddleSmallEspecially smallelectricity governor machine governorelectricity governormachine governorelectricity governormachine governorSpeed dead area ix%D33 Turn blade type hydraulic tu

17、rbine governor system , inaccuracy of blade move system is no bigger than 1.5%.The electricity allied, solid measure allied curve and theories allied relation curve deviation not bigger than design provision value.D34 Static state quality of impulse type hydraulic turbine governor system should atta

18、in to : D34.1 Speed dead area of main servo match provision value in form 2.；D342 under the steady state work condition, two spray position deviation of of needle, in the whole scope not more than 2%.D4 The dynamic state characteristic of hydraulic turbine governor system should match following prov

19、ision.D. 4. 1 Governor should assurance stability of machine set in various work condition and circulate way . At empty carry auto work condition circulate, infliction a rank jump type speed instruction signal, observation transition process, in order to choice circulate parameter of governor . Reco

20、rd speed swing opposite value after stability , for large electricity governor not exceed ± 0.15%, for large machine governor ,middle and small scaled governor not exceed ± 0.25%, especially small scaled governor not exceed soil 0.3%. If the machine set move empty carry speed swing opposit

21、e value is bigger than the provision value, it auto empty carry speed swing opposite value is not bigger than correspond move empty carry speed swing opposite value.D42 Dynamic state quality should attain after machine set unload the burden. D421 After unload 100% rating burden, in the speed variety

22、 process, exceed the steady state speed 3% rating speed value above of wave crest not exceed two.D422 After the machine set unload 100% rating burden , experience time from servo first open direction start to move to arrive machine set speed swing value not exceed soil 0.5% should not bigger than 40

23、 s.D423 Speed or signal variety of the instruction , servo motionless time:for the electricity governor is not bigger than 0.2 s, for the machine governor is not bigger than 0.3 s.。D5 Work oil pressure of oil set variety range is rating work oil pressures ±5%,when oil pressure above top limit o

24、f work oil pressures 2%, safety valve beginning row oil; safety valve whole open before oil pressure above top limit of work oil pressures 16%,and the oil pressure of oil box is no longer heat up; safety valve whole close before oil pressure Low in bottom limit of work oil pressure, the safety valve

25、 leak oil quantity is not bigger than the hydraulic pump output oil quantitys 1% ; standby hydraulic pump start up when oil pressure Low in bottom limit of work oil pressures 6%8%; When oil preesure continue to lower to trouble low oil pressure, pressure relay used for emergency shut down immediatel

26、y action .Each pressure signal machine of oil sets action oil pressure value and the setting value, not exceed rating oil pressures ± 2% .D6 The request of each organization of governorD61 The bp should settle in the design scope , the max value is no smaller than 80%, the minimum value is no m

27、ore than 5%. Buffer time constant should settle in the design scope , the biggest value of small and above type governor is no smaller than a 20 s, especially small scaled is no smaller than 12 s;Minimum value is no more than 2 s.D62 The bp should settle from zero to max value scope , max value is n

28、o smaller than 8%. Solid measure value of zero engrave degree is not negative value, the value is no more than 0.1%.D63 Upper limit of Zero route of travels speed scope should bigger than the max value of bp, the descend limit general is negative l 0%. If establish long-distance control equip, it ac

29、tion time should match the design requestion.D64 For the PID type governor in series control way , acceleration time constant should settle in the design scope ,the max value is no smaller than 2 s,the minimum value is zero.D65 Openning degree restriction organization should settle arbitrarily from

30、zero to max opening degree scope. For the large electricity governor and medium-sized electricity governor of importance electricity station , the machine and electricity opening degree restriction organization should establish long-distance control equip, the action time should match design provisi

31、on.D66 The open and start time of servo should settle arbitrarilyin the design scope .D. 6. 7 When servo move operation organization, the oil set have to have back up oil pump;for the flow type governor, have to equip servo move operation organization.D68 The governor which have pressure oil tank sh

32、ould equip urgent shut down equip, and action credibility.D69 Auto adjust allied relation of organization according to water head , can move enactment water head.If establish long-distance control equip, the action time should match design provision.D610 For electricity governor organization still h

33、ave following request：D610. 1 When the electricity equip work power supply and back up the power supply cut over mutually, or work machine and back up of many tiny machine electricity governor cut over mutually, opening degree of hydraulic turbine servo variety can not exceed the ± l of whole r

34、oute of travel.D6102 The large electricity governor should constitute the artificial frequency dead band, the max value is no smaller than 1% rating speed , and adjust in the design scope .D6103 For large electricity governor and medium-sized electricity governor of importance electricity station ,

35、when measure speed equip importation signal or water head signal disappear, the machine set should keep the take of burden, not influence normal shut down and the trouble shut down of machine set in the meantime request.oD6104 For large tiny machine electricity governor and medium-sized tiny machine

36、 electricity governor of importance electricity station proper use industry control class tiny machine as core.In addition to basic function of governor, have breakdown diagnosis and permit wrong control etc. function.If customer request, should allocation the port communication with the honor machi

37、ne . D6105 For the PID type governor in the parallel control way, it adjust parameter should settle in the design scope :The minimum value of proportion gain is no more than 0.5, the max value is no smaller than 20;The minimum value of integral gian is no more than 0. 051/s ,the max value is no smal

38、ler than 101/s;The minimum value of differential gain is zero, the max value is no smaller than 5 s.D611 For large , medium and small scaled electricity hydraulic governor ,comprehensive amount of drift fold reckon to speed opposite value, difference is no more than 0.3% and 0.6%. D7 The requestion

39、of each sets of governor and oil setD71 Measure speed equipD71. 1 In rating speed 土l0 scope, the static state characteristic curve should look like straight line, the speed dead area should match design provision value; In rating speed 土2 scope, the solid measure value of enlarge coefficient not exc

40、eed design value 土5.D71. 2 The machine type measure speed equip(flyweight), after the exceeded speed limit experiment , can not appear transform and crack etc. falsely often phenomenon.D. 7. 1. 3 Minimum work signal electric voltage of the electricity measure speed equip is no more than the design v

41、alue.D72 The output characteristic of buffer equip should smooth and look like exponential decay curve, comparison with theories curve, the time constant deviation:for the electricity governor not exceed 土10%, for large, medium, small scaled and especially small scaled machine governor difference no

42、t exceed 土20% and 土30%.The symmetry of the characteristic curve: for large, medium, small scaled and especially small scaled governor, the deviation of sit mark position two direction of the exportation value ,the difference not exceed ±10% and ± 15% of the averagely value in same time.for

43、 large , small scaled and especially small scaled governor, buffer equip from move piston instauration to arrive in the center route of travel deviation of the position fold reckon to speed opposite value, difference not exceed speed dead area of governor system provision value of 1/3 and l/2.D73 Th

44、e electricity equip of electricity governor D731 The insulation resistance between the electricity back track of electricity cabinet and hydraulic cabinet and ground,should be no smaller than lM measure in temperature for 15 35 and relative humidity for 45% 75% environment bottom . D732 The electric

45、ity back track between electricity cabinet and hydraulic cabinet，between the electric circuit and metals outer shell(or ground) ,in the temperature is 15 35 and relative humidity is 45% 75% environment bottom experiment, according to work electric voltage, should bear form 3 provision of bear press

46、experiment electric voltage, last lie of lmin electricity strength experiment.without breakdown and flashover phenomenon . Form 3 Rating voltage UI(AC valid value or DC)Experiment voltage（valid value）60100060UI3002000300UI6602500D733 Install, weld, and cloth line etc.each item technique requestion o

47、f board and dollar spare part inside electricity equip,should according to GB 3797 and GB 4588 etc. standard of relevant part performance.D734 Electricity equip should bear the interference from power supply and the radiation electromagnetism field interference from surroundings environment,the elec

48、tromagnetism interference of equipments should let up to lowest extent in the meantime. Electricity fast change in sudden interference experiment electric voltage should be no smaller than the product standard provision. Infliction interference, function and action of electricity equip should exacti

49、tude without any error, servo shouldn't have abnormality action.D735 For large and medium scaled electricity hydraulic governor ,comprehensive amount of drift fold reckon to speed opposite value, difference is no more than 0.01% and 0.02%.D74 Electricity hydraulic convertor.D741 Usage under the

50、provision condition, should work exactitude, credibility .D742 The speed dead area of electricity hydraulic convertor, oil pressure drift , solid measure deviation of enlarge coefficient and consume oil quantity not exceed design provision value.The work scope is no smaller than design provision val

51、ue.D75 Oil pump operation steady, the basic parameter of three screw pump is according to GBl0886. Output oil quantity and permit bad proper of stalk power under the provision pressure according to GB 9064.D76 Safety valve action exactitude, credibility,without mightiness vibration and yawp. D77 Aut

52、o repair air equip and oil signal equip action exactitude, credibility.D78 The design, manufacturing, weld and check of pressure oil tank , should match relevant provision ofpressure container safety inspect regulations and GBl50 etc. D79 The quality which is die-castinged piece has to meet provisio

53、n of correspond technique standard.D710 After hydraulic component assemble, the leak oil quantity at provision oil temperature and rating oil pressure not exceed design provision value.D8 All accuracy of designation appearance are no lower than 2.5 class Following parameter the deviation of solid me

54、asure value and design value shouldn't be smaller than design provision value.。a) Speed instruction signal； b) Opening instruction signal； c) Power instruction signal； d) bp； e) Temporary bp coefficient, time constant of buffer ,time constant of acceleration .；f ) Proportion gain, integral gain

55、and differential gain.D9 External appearance requestionD91 Shape size and install size should match product drawing requestion.D92 Parts of tight solid and the component weld, assemble and row serial number should match drawing request.D93 Parts and outer shell forbid rust eclipse, crack and obvious

56、 row scar.Plating layer shouldn't shed off .D94 Metals outer shell or base of equip should have connected ground carry son or connect ground bolt, and should have obvious connect land mark ambition.E Marking, packing, conveyance and store .E1 MarkingE1. 1 Each product at appropriate obvious posi

57、tion fix product card, it main contents: a) Manufactory； b) Type and name of product； c) Product manufacturing serial number； d) Date of product manufacturing.E12 Motor revolve direction and hand round, hand handle move direction of each product , all should fish-eye rrowhead mark card.E.1.3 Packing box should creat according to pack drawing , note the following item outside wall:： a