1、Accumulator type hydraulic non-return butterfly valve（X Series） Product manual目錄 Content TOC o 1-2 h z u HYPERLINK l _Toc426464992 1.產(chǎn)品簡介Introduction PAGEREF _Toc426464992 h 1 HYPERLINK l _Toc426464993 2.型號說明Type Instructions PAGEREF _Toc426464993 h 1 HYPERLINK l _Toc426464994 3.標準與規(guī)范Standards PAGER

2、EF _Toc426464994 h 1 HYPERLINK l _Toc426464995 4.主要閥門參數(shù)Main parameters PAGEREF _Toc426464995 h 2 HYPERLINK l _Toc426464996 5.電液控制參數(shù)Electro-hydraulic Control Parameters PAGEREF _Toc426464996 h 2 HYPERLINK l _Toc426464997 6.主要零件選用材料Main part material PAGEREF _Toc426464997 h 3 HYPERLINK l _Toc426464998

3、 7.產(chǎn)品結構說明Structures PAGEREF _Toc426464998 h 3 HYPERLINK l _Toc426464999 7.1閥門本體Valve body PAGEREF _Toc426464999 h 3 HYPERLINK l _Toc426465000 7.2傳動單元Transmission unit PAGEREF _Toc426465000 h 3 HYPERLINK l _Toc426465001 7.3液壓控制單元Hydraulic control unit PAGEREF _Toc426465001 h 4 HYPERLINK l _Toc4264650

4、02 7.4電氣控制單元Electric control unit PAGEREF _Toc426465002 h 5 HYPERLINK l _Toc426465003 8.電液功能調(diào)試The electro-hydraulic functions debug PAGEREF _Toc426465003 h 7 HYPERLINK l _Toc426465004 8.1操作準備operation preparation PAGEREF _Toc426465004 h 7 HYPERLINK l _Toc426465005 8.2就地調(diào)試In-situ debugging. PAGEREF _

5、Toc426465005 h 8 HYPERLINK l _Toc426465006 8.3聯(lián)動調(diào)試linkage commission PAGEREF _Toc426465006 h 10 HYPERLINK l _Toc426465007 8.4故障保護Fault Protection PAGEREF _Toc426465007 h 10 HYPERLINK l _Toc426465008 9.聯(lián)動運行l(wèi)inkage operation PAGEREF _Toc426465008 h 11 HYPERLINK l _Toc426465009 10.儲運、安裝與維護Storage, inst

6、allation and maintenance PAGEREF _Toc426465009 h 12 HYPERLINK l _Toc426465010 10.1吊運Lifting PAGEREF _Toc426465010 h 12 HYPERLINK l _Toc426465011 10.2儲存Storage PAGEREF _Toc426465011 h 12 HYPERLINK l _Toc426465012 10.3安裝Installation PAGEREF _Toc426465012 h 13 HYPERLINK l _Toc426465013 10.4日常維護Daily ma

7、intenance PAGEREF _Toc426465013 h 13 HYPERLINK l _Toc426465014 11.一般故障及排除方法General failure and troubleshooting PAGEREF _Toc426465014 h 14 HYPERLINK l _Toc426465015 11.1拆卸維修注意事項Removing the Maintenance Considerations PAGEREF _Toc426465015 h 14 HYPERLINK l _Toc426465019 11.2電液控制部分electro-hydraulic con

8、trol section PAGEREF _Toc426465019 h 14 HYPERLINK l _Toc426465020 12.附件Attachment PAGEREF _Toc426465020 h 16Acumulator type hydraulic non-return butterfly valve（X Series）Product manual PAGE 16蓄能器型液控止回蝶閥（X系列）Accumulator type hydraulic non-return butterfly valve（X Series）產(chǎn)品簡介Introduction本系列液控止回蝶閥，主要安裝

9、于水利、電力、給排水等各類泵站的水泵出口，替代止回閥和閘閥的功能。工作時，閥門與管道主機配合，按照水力過渡過程原理，通過預設的啟閉程序，有效消除管路水錘，實現(xiàn)管路的可靠截止；特殊工況下還可實現(xiàn)無電緊急關閥，起到保護管路系統(tǒng)安全的作用。閥門關閉儲備能源為壓縮氣體勢能。本公司可根據(jù)現(xiàn)場特殊要求單獨進行設計，多方位滿足廣大用戶對該類產(chǎn)品的需要。This series of hydraulic butterfly check valve , installed in the main pump outlet water conservancy, electricity , water supply a

10、nd drainage pumping stations and other alternative check valve and valve function. In operation, the host with the valve in the pipeline , according to the principle of hydraulic transition process , through pre- opening and closing procedures , the effective elimination of Water Hammer , reliable d

11、eadline pipeline ; special conditions can achieve without electricity emergency shutdown valve , protect the pipeline system security.The valve closes reserve energy for the compressed gas potential .The company can design according to site specific requirements of individual , multi-faceted needs o

12、f the majority of users of the products .型號說明Type Instructions K D 7 4 1 閥門材料Valve material：無NO 灰鑄鐵Grey cast iron Q 球墨鑄鐵Ductile C 碳鋼Carbon steel 公稱壓力Pressure： 單位Unit: kg/eq o(sup 7(2),sdo 3()密封材料Sealing material： X 橡膠Rubber H 不銹鋼S.S.結構形式Structure： 1 垂直板式Vertical plate type 3 雙偏心結構Eccentric+n 防泥沙結構An

13、ti- sediment structure連接方式Connection：法蘭連接Flange驅動方式Driven mode：液壓傳動Hydraulic產(chǎn)品類別Valve type：蝶閥Butterfly valve功能特征Functure：自動控制 Automatic Control公稱通徑DN：單位UNIT：mm標準與規(guī)范Standards產(chǎn)品標準StandardJB/T 5299、GB/T 12238、 JB/T 8527傳動裝置ActuatorJB/T 5299、Q/BZZ 09-2014結構長度Structure lengthGB/T 12221配管法蘭Flange鑄鐵法蘭Cast

14、ironGB/T 17241.6鋼制法蘭SteelGB/T 91129131蓄能器標準AccumulatorGB/T 2352-2003試驗與檢驗TestJB/T 5299、GB/T 13927、Q/BZZ 09-2014質量保證Quality assuranceISO 9001:2000注：可采用其他有關標準和國外標準，法蘭尺寸可按用戶要求制造，但應在訂貨合同中注明。Note: it should be stated in the contract once use other relevant standards and foreign standards ,and flange size

15、 can manufacture according to user requirements.主要閥門參數(shù)Main parameters公稱通徑 DN2000 mm公稱壓力PN1.0 MPa試驗壓力Ps密 封Seal1.1PN強 度Strength1.5PN介質溫度Medium temp.80管道介質Pipeline medium清水、泥沙水、海水Clean water, ater with sand, sea water最小流阻系數(shù)Min.flow efficiency0.1注：1、1Mpa=10.2f/c 2、密封試驗壓力可按電站最高靜水頭計算值。Sealing test pressur

16、e can be calculated as per highest static.電液控制參數(shù)Electro-hydraulic Control Parameters控制類型Type雙作用Double action動力電源Physics powerAC380V控制電源Control powerAC220 V電磁閥電壓Solenoid valve voltageDC24V電機功率Motor power7.5Kw油箱容積Oil tank volume160L（用油量約為容積的8085%）The volume of the fuel consumption of approximately 80

17、to 85%液壓油Hydraulic oilYB-N32、YB-N46抗磨液壓油Hydraulic oil溢流閥設定壓力Setting pressure of relief valve約Approx 17 MPa系統(tǒng)保壓范圍System pressure set range約Approx 1216 MPa蓄能器公稱容積Accumulator volume25 L 2蓄能器充氣壓力Accumulator air pressure57 MPa開閥時間Valve open time2090s（可調(diào)Adjustable）關閥時間Valve close time快關quick closing2.530s

18、（可調(diào)adjustable）慢關slow closing690s（可調(diào)adjustable）關閥角度Valve close angle快關quick closing7510（可調(diào)adjustable）慢關slow closing1510（可調(diào)adjustable）主要零件選用材料Main part material零 件 名 稱Part name材 料Material閥 體Body灰鑄鐵、球墨鑄鐵、碳素鋼Grey cast iron, Ductile cast iron, Carbon steel蝶 板Disc灰鑄鐵、球墨鑄鐵、碳素鋼Grey cast iron, Ductile cast i

19、ron, Carbon steel閥 軸Shaft不銹鋼、碳素鋼 S.S. Carbon steel閥體密封面Body Sealing Ring銅合金、不銹鋼Copper alloy, s.s.蝶板密封圈Disc sealing ring優(yōu)質丁腈橡膠、不銹鋼/柔性石墨層疊NBR, S.S. with Flexbile graphite滑動軸承Bearing自潤滑復合材料Self-lubricating composite material填 料Packing柔性石墨、V形密封圈Flexible graphite ,V type sealing ring傳動支架Transmission fram

20、e碳素鋼Carbon steel產(chǎn)品結構說明Structures本產(chǎn)品主要由閥門本體、傳動單元、液壓控制單元，電氣控制單元等部分組成。The product consists of valve body , drive unit, the hydraulic control unit , electric control unit and other components. 閥門本體Valve body閥門本體由閥體、蝶板、閥軸、滑動軸承、密封組件等主要零件組成。Valve body mainly composed by body, disc, shaft, bearing and seali

21、ng etc.主閥為中線式襯膠結構形式。在閥體圓柱形通道內(nèi)，圓盤形蝶板繞著閥桿軸線旋轉，旋轉角度為090之間。全開時，平順的流道具有較小的流阻系數(shù)；閥門密封時，兩種流向具有同樣的密封性能，特別適用于復雜的管網(wǎng)工況。 同時，通過閥門及內(nèi)襯材料的有效配置，可廣泛應用于海水、強堿等腐蝕性介質的輸送。Themainvalveisformofneutraltypewithrubberstructure.Cylindricalpassagewithinthevalvebody,discrotatesaroundthestemaxis,rotationangle090.Whenfullyopen,thesm

22、oothflowhavingasmallerflowresistancecoefficient;whenvalveseal,thetwoflowshavethesamesealingperformance,especiallyforcomplexnetworkconditions.Atthesametime,theefficientallocationofliningmaterialandvalvescanbewidelyusedfortransportationofseawater,alkaliandothercorrosivemedium.傳動單元Transmission unit傳動單元

23、主要由齒輪齒條傳動箱、油缸、行程開關盒等組成，是液壓動力開、關閥門的執(zhí)行機構。傳動行程限位采用油缸缸蓋限位的方式，油缸行程及限位出廠時均已調(diào)好。若設備檢修后位置發(fā)生變化導致行程不夠，需拆下傳動箱尾蓋，旋轉油缸活塞桿頭部的六方進行調(diào)整。The drive consists of a rack and pinion gearbox , fuel tanks , limit switch boxes and other components, hydraulic power to open and close the valve actuators .Transmission oil cylinde

24、r head limit stroke limit the way , have been adjusted when the cylinder stroke and limit the factory . If the position changes result in equipment maintenance after the trip is not enough, you need to remove the gearbox end cap , rotating cylinder piston rod hexagonal head adjustment .液壓控制單元Hydraul

25、ic control unit液壓控制單元包括液壓站、油缸等。液壓站一般與主閥為分體安裝。The hydraulic control unit including hydraulic stations , fuel tanks and the like. Hydraulic station and the main valve is generally split installation .圖 1 液壓原理圖 pic.1 Hydraulic Principle Dawing按 （圖1） ，各液控元件功能說明如下：According pic.1 , each fluid control com

26、ponents function as follows :A手動泵Hand Operated Pump用于系統(tǒng)調(diào)試及特殊情況下的手動啟閉；For manually opening and closing system debug and in special circumstances；B油泵Oil PumpMCY型軸向柱塞泵；MCY type axial piston pump；C電機Electric MotorY系列三相異步電機；Y series three-phase asynchronous motors；D溢流閥Overflow Valve用于限制系統(tǒng)壓力上限，一般設定值約為17MP

27、a；It used to limit the pressure cap system, generally setting about 17MPa；E節(jié)流閥Throttle Valve E1疊加式雙單向節(jié)流閥stacked double directional throttle valve兩端手輪分別調(diào)節(jié)開閥速度、快關速度Both ends of the hand wheel to adjust the speed of the open valve, fast speed；E2-E3插裝式節(jié)流閥cartridge Throttle Valve E2調(diào)節(jié)緩閉速度adjust the slow

28、closing speed、E3調(diào)節(jié)緩開速度adjust the slow opening speed；F單向閥Check Valve用于油路的單向導通；for oil pipeling connection；G二通螺紋插裝電磁錐閥Two-way Cartridge Solenoid ValveG1-保壓電磁閥Pressure keeping solenoid valve，用于隔離蓄能器保壓油路used to isolate the accumulator pressure passage ；G2-快關電磁閥Quick closing solenoid valve；G3-快開電磁閥Quick

29、opening solenoid valve；H空氣濾清器Air Cleaner用于油箱呼吸空氣過濾air filter of oil tank；I液位液溫計Oil Level Indicator指示油箱液壓油位及溫度；hydraulic oil lever indication and temperature；J吸油過濾器Suction Filter 用于油泵吸油過濾；filter the oil suction of oil tank；KP壓力開關Pressure Switch用于設定系統(tǒng)自動保壓壓力范圍，上限設定約為16MPa，下限設定約為12MPa；It used to set the

30、 system to automatically hold pressure range , the upper limit is about 16MPa, the lower limit is about 12MPa;L常閉截止閥Normally Close Stop Valve用于系統(tǒng)卸壓system pressure release ；M壓力表Pressure Manometer用于指示系統(tǒng)油壓Oil pressure indication system；N蓄能器Accumulator用作系統(tǒng)壓力的補償Compensation system pressure；O主油缸Oil Cylind

31、er雙作用缸：油壓開啟、油壓關閉Double-acting cylinders : hydraulic opening , hydraulic closed；SQ行程開關Action Switch用于閥門全開、全關、及鎖定狀態(tài)的信號反饋；Feedback signal for the valve fully open , fully closed and locked state；S電磁滑閥Electromagnetic Valve用于常速啟閉油路換向控制Constant speed for opening and closing the oil commutation control；T液控

32、單向閥Fluid Control One-way Valve用于鎖緊油缸回路Lock cylinder for loop。電氣控制單元Electric control unit電氣控制單元包括就地電氣控制箱、動作執(zhí)行元件、狀態(tài)監(jiān)控元件、遠程監(jiān)控部分等。Electrical control unit comprises a local electrical control box , action actuator , status monitoring device , remote monitoring portion etc.電氣控制單元按主邏輯元件類別分為普通繼電型和PLC智能控制型（詳

33、見電氣原理圖）。Electrical control unit is divided into categories according to the main logic elements common relay type and PLC intelligent control type (see electrical diagram ) . 電控箱控制盤操作說明electronic control box control panel Operating Instructions就地電氣控制箱控制盤安裝元件包括各種狀態(tài)指示燈、就地操作按鈕、旋鈕等。各操作按鈕、旋鈕功能說明如下：Local

34、electrical control box panel mounting element includes various status indicators , local operation buttons, knobs and the like. All the buttons , knobs function as follows:遠程/解除/就地功能轉換旋鈕：旋至 “就地”，此時電控系統(tǒng)切換到本地控制箱控制盤上控制，遠程控制信號不起作用；旋至中間位“解除”，此時本地和遠程控制信號均不起作用；旋至“遠程”，此時控制系統(tǒng)切換到遠程操作狀態(tài)，本地控制盤不起作用。Remote / off

35、/ local - function switch knob : Rotary to in situ , then the electronic control system is switched to local control box control panel control, remote control signal has no effect ; spin to the middle position lift At this time local and remote control signals are ineffective ; spin to the remote ,

36、then the control system to switch to remote control mode , the control panel does not work locally .開閥本按鈕只在“就地”狀態(tài)下有效。Open valve - This button is only in the local status effective.關閥本按鈕只在“就地”狀態(tài)下有效。Close valve - This button is only in the local status effective.停止本按鈕只在“就地”狀態(tài)下有效。Stop - This button is

37、only in the local status effective.執(zhí)行、監(jiān)控元件execution , monitoring elements動作執(zhí)行元件包括油泵電機、各種電磁閥等。狀態(tài)監(jiān)控元件包括各行程開關、壓力開關、熱繼電器、液位信號等。（具體信號種類按合同）Actuator action includes pump motor , all kinds of electromagnetic valve.State monitoring elements including the limit switch, pressure switches, thermal relay、Liquid

38、 level signal and the like ( Specific signal type according to the contract ) 遠程監(jiān)控部分remote monitor控制箱內(nèi)設遠程控制端子和DCS相連。其中：Control box equipped with remote control terminal is connected to the DCS . Among them:遠程控制指令輸入remote control command input開閥Open valve無源觸點開關量信號；Passive contact switch signal；關閥Off

39、valve無源觸點開關量信號；Passive contact switch signal；停止Stop無源觸點開關量信號；Passive contact switch signal；事故關閥Accident off valve無源觸點開關量信號；Passive contact switch signal；注：遠控“事故關閥”輸入信號，具有最高動作優(yōu)先權，無視“遠程/就地”的選擇。Note: The remote control accidents off valve input signal with the highest priority action , ignoring the rem

40、ote / local choice.本地輸出至遠程信號local output to a remote signal電源狀態(tài)Power Status無源觸點開關量信號Passive contact switch signal；油泵狀態(tài)Oil pump Status無源觸點開關量信號Passive contact switch signal；遠程狀態(tài)Remote Status無源觸點開關量信號Passive contact switch signal；綜合故障Comprehensive fault無源觸點開關量信號Passive contact switch signal；主閥全開位The m

41、ain valve fully open position無源觸點開關量信號Passive contact switch signal；主閥全關位The main valve is fully closed position無源觸點開關量信號Passive contact switch signal；15位置position無源觸點開關量信號Passive contact switch signal；75位置position無源觸點開關量信號Passive contact switch signal；閥門開度Valve opening420mA 模擬量信號4 20mA analog signa

42、l；其他根據(jù)合同要求配置的監(jiān)控信號等。According to the contract required to configure other monitoring signals.電液功能調(diào)試The electro-hydraulic functions debug設備安裝后，應先在“就地”狀態(tài)下對電液系統(tǒng)各項功能進行調(diào)試，各項指標合格后，再切換至“遠程聯(lián)動”運行狀態(tài)。調(diào)試工作按以下步驟進行：After installation , you should at local state of the electro-hydraulic system functions for debuggi

43、ng , after all indicators qualified , and then switch to the Remote - linkage operating state. Commissioning perform the following steps :操作準備operation preparation正式調(diào)試操作前，應作如下準備工作：Before the formal commissioning operations , should make the following preparations:按安裝布置圖及 （10.3 安裝） 要求，檢查閥門安裝方向是否正確； P

44、ress and requirements, check valve mounting direction is correct;清理設備上的灰塵及包裝、安裝殘留物，檢查閥門及其他電液元件是否有損壞；Clean up dust and packaging device, install residue check whether electro-hydraulic valves and other components are damaged ;核對電氣原理圖與控制箱實物是否相符，若正確則連接電源線及其他控制線；Check are consistent with the physical co

45、ntrol box , if it is properly connected to the power cord and other control lines ;按液壓系統(tǒng)圖連接高壓油管；Press Connect high-pressure tubing ;油箱加油，第一次加油量應至液位計滿刻度。且在完成一個開閥及自動保壓動作后，檢查液位應在50%刻度以上，不夠需進行補充；The fuel tank , the first to gauge the amount of fuel to be full scale. And, after completion of an open valv

46、e and automatic packing operation , check the fluid level should be at least 50% of the scale , not the need for complementary ;檢查截止閥L狀態(tài)，為常閉，并應用鎖緊螺母鎖緊；Check the shut-off valve L state , is normally closed , and apply the lock nut ;再次檢查各種接線無誤，用萬用表測量電源電壓是否正常。Again examine the various wiring is correct

47、 , measure the supply voltage is normal with a multimeter .合上空氣開關QF1、QF2，檢查各種指示燈，應與相應實物狀態(tài)一致。On the air switch QF1, QF2, examine the various indicators should be consistent with the corresponding physical state.就地調(diào)試In-situ debugging.將“遠程/解除/就地”旋鈕旋至 “就地”。 The remote / off / in situ knob to the in situ

48、. 自動保壓Auto pressure keeping.接通電源，電液系統(tǒng)進入“自動保壓”狀態(tài)，即：當蓄能器壓力低壓力開關K1設定點（約12MPa）時，電機C啟動給蓄能器N充壓；直至達高壓力開關KP2設定點（約16MPa）后停機。在“自動保壓”過程中，按“停止”，可在大于KP1設定點的任意壓力位置暫停電機。可以手動慢慢打開常閉截止閥L，檢測自動保壓功能。初次啟動電機時檢查電機旋向：從上往下看，順時針旋轉為正；若是反轉，切斷電源更改相序。初次運行或蓄能器拆卸后首次“自動保壓”時，應松開蓄能器上排氣螺塞，直至滲油后擰緊。Power on, electro-hydraulic system into

49、 automatic pressure keeping state, ie : when the accumulator pressure low- pressure switch KP1 set point ( about 12MPa) , the motor C starts to accumulator N -charge ; until reaches high pressure switch KP2 set point ( about 16MPa) after the shutdown .In the automatic pressure keeping , press Stop t

50、o pause the motor K1 setpoint greater than any pressure position .Slowly open the normally closed manually shut-off valve L, detection automatic packing function .Initial start the motor check the motor rotation direction: from the top down , clockwise rotation is positive; if the reverse, turn off

51、the power to change the phase sequence .After initial operation or accumulator disassemble first automatic pressure keeping should release the accumulator vent plug until the oil leakage after tightening . 油路排氣Exhaust passage第一次運行“開閥”時，松開主油缸O尾蓋上的排氣螺塞；短暫按下“開閥”按鈕后“停止”，以“點動”方式開閥，直至螺塞處滲油后，擰緊螺塞。同理，第一次運行“

52、關閥”時，也要松開主油缸O缸蓋上的排氣螺塞進行排氣。After the first run , open valve , release the lock plug cylinder exhaust O cylinder head , briefly press the open valve button Stop to jog mode open valve until the plug at after the oil leakage , tighten the plug.Similarly , run off valve at the first time, it should also

53、 release the exhaust plug on the master cylinder head exhaust O . 開閥Open the valve按下“開閥”按鈕油泵電機C啟動一次后繼續(xù)保持“自動保壓”狀態(tài)；電磁閥G1、快開電磁閥G3、電磁滑閥S開閥線圈YV1得電蓄能器內(nèi)壓力油經(jīng)電磁閥G1、S、液控單向閥T、流量閥E1、電磁閥G2、高壓膠管X進入油缸O無桿腔，推動活塞開閥，有桿腔內(nèi)液壓油經(jīng)高壓膠管Y、電磁閥G3、回油箱閥門快速開啟；快開閥時間可通過流量控制閥E1開閥端手輪進行調(diào)整。當閥門開啟到約15度位置，行程開關壓合快開電磁閥G3失電，油缸有桿腔繼續(xù)通過流量控制閥E3回油，

54、關閥進入緩開狀態(tài)，并可通過E3調(diào)整緩開速度；開閥到位后行程開關壓合全開指示燈亮，各電磁閥延時失電開閥結束。Press the open valve button oil pump C started and maintain automatic pressure keeping state ; solenoid valve G1, quick open solenoid valve G3, S spool solenoid valve opening coil YV1 is energized accumulator pressure oil through the solenoid valv

55、e G1, S, check valve T, flow valve E1, solenoid valve G2, high-pressure hose X into the cylinder rod chamber O , push the piston to open the valve , rod cavity hydraulic oil through the high pressure hose Y, solenoid vale G3, oil tank valve fast open.Valve fast opening time can be adjusted by the ha

56、nd wheel on valve opening E1.After valve opening to apprx.15 degree, travel switch nip solenoid valve G3 lose power, rod cavitiy of oil cylinder continue flow vale E3 ,valve into slow opening state, adjust the speed by E3. 關閥Close valve按下“關閥”按鈕油泵電機C啟動一次后繼續(xù)保持“自動保壓”狀態(tài)；保壓電磁閥G1、快關電磁閥G2、電磁滑閥S關閥線圈YV2得電蓄能器

57、內(nèi)壓力油經(jīng)電磁閥G1、S、液控單向閥T、流量閥E1、電磁閥G3、高壓膠管Y進入油缸O有桿腔，推動活塞關閥，無桿腔內(nèi)液壓油經(jīng)高壓膠管X、快關電磁閥G2回油箱閥門快速關閉；快關時間可通過流量控制閥E1關閥端手輪進行調(diào)整；Press the close valve button oil pum C started and maintain automatic pressure keeping state ; holding pressure valve G1, fast off solenoid vale G2, solenoid spool valve S close valve coil YV2

58、 energized the accumulator oil pressure solenoid valve G1, S, pilot-operated check valve T, flow valve E1, solenoid valve G3, high-pressure hose Y into the cylinder rod chamber O , push the piston off , rodless cavity -oil flow through high pressure hose X, solenoid valve G2 and back to the tank val

59、ve fast closing ;Fast off time can be adjusted by handwheel in closed valve side E1;當閥門關閉到約15度位置，行程開關壓合快關電磁閥G2失電，油缸無桿腔繼續(xù)通過流量控制閥E2回油，關閥進入緩閉狀態(tài)，并可通過E2調(diào)整緩閉速度，以消除管道水錘；關閥到位后行程開關壓合全關指示燈亮，各電磁閥均延時失電關閥結束。 When the valve is closed to about 15 degree position , travel switch nipthe solenoid valve G2 lose power,

60、 oil in rodless cavity continute flow into control valve E2, realize the slow closing state, the speed can be adjusted by E2, to eliminate water hammer;停止Stop開閥、關閥過程中，按下“停止”按鈕，將中斷開關動作，此時各電磁閥均失電，油缸兩腔均處于液控單向閥T形成的封閉回路內(nèi)，為液壓鎖定狀態(tài)，讓閥門停止在任意位置，以方便調(diào)試；快關過程中應避免使用此功能，以免對液壓系統(tǒng)形成沖擊。During valve opening and closing