青青视久久,在线免费观看你懂的

18481 c120h 4p-125a斷路器

改造方案裝機(jī)容量簡(jiǎn)介：主機(jī)為上海合眾一開利公司的19L型冷凍機(jī)組，制冷量1055kw，電機(jī)功率為210kw，冷卻水系統(tǒng)由三臺(tái)55kw電機(jī)各帶一臺(tái)水泵并聯(lián)組成，冷凍水系統(tǒng)由兩臺(tái)45kw電機(jī)各帶一臺(tái)水泵并聯(lián)組成。以冷卻水系統(tǒng)為例來說明改造系統(tǒng)的工作原理，冷卻水系統(tǒng)由三臺(tái)水泵并聯(lián)組成冷卻水循環(huán)系統(tǒng)，我們用一臺(tái)歐姆龍CPMIA30CORA型PLC控制器和一臺(tái)55kw三肯MS55型交流變頻器就可使其中一臺(tái)水泵電機(jī)處于可調(diào)狀態(tài)，這種設(shè)計(jì)在大程度上節(jié)約了投入，達(dá)到用少的投資取得大的回報(bào)。運(yùn)行方式有手動(dòng)、半自動(dòng)、全自動(dòng)三種，其主線路圖、控制線路圖、微機(jī)接線圖。

　　三臺(tái)水泵可通過選擇開關(guān)任選一臺(tái)作為起動(dòng)泵，一臺(tái)作為補(bǔ)充泵，一臺(tái)作為備用泵，現(xiàn)以一號(hào)泵為變頻泵，二號(hào)泵為補(bǔ)充泵，三號(hào)泵為備用泵為例說明運(yùn)行情況，當(dāng)熱負(fù)荷較小，只需一臺(tái)電機(jī)工作在低于工頻狀態(tài)就能滿足要求時(shí)，變頻運(yùn)行一號(hào)泵，且運(yùn)行頻率可根據(jù)實(shí)際負(fù)荷的大小任意設(shè)定，當(dāng)熱負(fù)荷增大，通過出水溫度傳感器給PLC一個(gè)信號(hào)，則一號(hào)泵自動(dòng)平穩(wěn)投入工頻運(yùn)行，然后變頻起動(dòng)二號(hào)泵，如果變頻器頻率降到低于基本頻率，則自動(dòng)停止工頻運(yùn)行的一號(hào)泵而繼續(xù)運(yùn)行二號(hào)泵，而當(dāng)熱負(fù)荷增大時(shí)，則二號(hào)泵自動(dòng)平穩(wěn)投入工頻運(yùn)行，然后變頻起動(dòng)一號(hào)泵，如果變頻器頻率又降到低于基本頻率，則自動(dòng)停止工頻運(yùn)行的二號(hào)泵而繼續(xù)變頻運(yùn)行一號(hào)泵，如此循環(huán)下去。三號(hào)泵為備用泵，不參與運(yùn)行。冷凍水系統(tǒng)兩臺(tái)泵的運(yùn)行原理跟上面相同，只是取消了備用泵。結(jié)果分析經(jīng)過改造，兩套系統(tǒng)大部分時(shí)間運(yùn)行在42Hz，原系統(tǒng)所有的技術(shù)指標(biāo)保持不變，改造前與改造后電機(jī)的電流。

空調(diào)系統(tǒng)存在的不足因?yàn)橹醒肟照{(diào)系統(tǒng)在選型時(shí)，是考慮按照大換熱量（即環(huán)境氣溫高，且所有場(chǎng)所的空調(diào)都開足）的情況下，再取的系數(shù)來確定的，而通常情況下，由于季節(jié)和晝夜氣溫的變化以及開機(jī)數(shù)目的不同，實(shí)際換熱量遠(yuǎn)小于設(shè)計(jì)值。因此，電機(jī)容量遠(yuǎn)大于實(shí)際負(fù)荷，出現(xiàn)了大馬拉小車的現(xiàn)象，而以往當(dāng)熱負(fù)荷小時(shí)，相應(yīng)的調(diào)節(jié)冷卻水、冷凍水系統(tǒng)的節(jié)流閥，改變管道的截面積S的方式來調(diào)節(jié)流量Q，節(jié)流閥的存在會(huì)對(duì)水流產(chǎn)生阻力，從而產(chǎn)生節(jié)流損耗，并且會(huì)引起機(jī)械振動(dòng)和產(chǎn)生噪音。另一方面，冷凍水的流量與冷凍水泵的轉(zhuǎn)速成正比，當(dāng)冷凍水泵轉(zhuǎn)速高時(shí)，冷凍水的流量大，流速也快。因此，當(dāng)冷凍水流過風(fēng)機(jī)盤管組件時(shí)，還沒有充分的時(shí)間將所攜帶冷量全部釋放完，就又返回制冷機(jī)去了，這樣冷凍水泵電機(jī)又做了一部分無用功。

　　采用交流變頻調(diào)速和PLC技術(shù)改造的優(yōu)點(diǎn)采用交流變頻調(diào)速來改變冷凍水、冷卻水系統(tǒng)電機(jī)的轉(zhuǎn)速，從而改變水的流速，也即改變冷卻水、冷凍水的流量，由于電機(jī)可在很寬的范圍內(nèi)平滑調(diào)速?？蓪⑺泄?jié)流閥開至大，使管道暢通，就可免去節(jié)流損耗，了電流沖擊和機(jī)械沖擊，并且頻率下調(diào)后，電機(jī)和機(jī)械避免了長(zhǎng)期在高速區(qū)運(yùn)行，能有效的延長(zhǎng)電機(jī)和機(jī)組的壽命，且冷凍水泵電機(jī)采用變頻調(diào)速來調(diào)節(jié)轉(zhuǎn)速，根據(jù)實(shí)際熱負(fù)荷的大小來調(diào)節(jié)冷凍水的流量和流速，以便讓冷凍水在風(fēng)機(jī)盤管組件中有充分的時(shí)間釋放在熱負(fù)荷大小相當(dāng)?shù)睦淞?，冷凍水泵電機(jī)的功耗就可大大降低。要實(shí)現(xiàn)多臺(tái)水泵電機(jī)轉(zhuǎn)速連續(xù)可調(diào)，才能使水泵電機(jī)根據(jù)實(shí)際熱負(fù)荷的大小設(shè)定其轉(zhuǎn)速，進(jìn)而節(jié)約能源，優(yōu)的辦法就是利用PLC控制器對(duì)變頻器進(jìn)行切換控制，減少了與傳統(tǒng)控制器相比的大量中間繼電器，提高了系統(tǒng)運(yùn)行的可靠性。

咨詢熱線：18150695049

誠(chéng)信經(jīng)營(yíng)，質(zhì)量為首，誠(chéng)信至上，鼎晟達(dá)竭誠(chéng)為您服務(wù)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`

漳州鼎晟達(dá)自動(dòng)化設(shè)備有限公司

聯(lián)系人藍(lán)經(jīng)理

手機(jī) ：18150695049

QQ ：2880842794

郵箱：2880842794@qq.com

傳真：0596-3119658（請(qǐng)備注林工收）

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

*所有備件的質(zhì)保期均為1年，經(jīng)過專業(yè)測(cè)試認(rèn)證。

*如果您需要訂購(gòu)產(chǎn)品超過1件，請(qǐng)與我們聯(lián)系，我們可以為您提供折扣。

*我們僅采用快遞方式遞送備件。（順豐）

*如果您發(fā)現(xiàn)其他供貨商為相同產(chǎn)品提供更為低廉的價(jià)格，我們也愿意參照其價(jià)格向您提供進(jìn)一步的折扣。如果還有其他任何問題，請(qǐng)隨時(shí)與我們聯(lián)系。

*請(qǐng)讓我們知道您有任何，備品，備件，的需要，我們可以給您進(jìn)一步的援助，我們等候您的詢盤。

【主營(yíng)產(chǎn)品】

1：Invensys Foxboro（福克斯波羅）：I/A Series系統(tǒng)，F(xiàn)BM（現(xiàn)場(chǎng)輸入/輸出模塊）順序控制、梯形邏輯控制、事故追憶處理、數(shù)模轉(zhuǎn)換、輸入/輸出信號(hào)處理、數(shù)據(jù)通信及處理等。

2：Invensys Triconex: 冗余容錯(cuò)控制系統(tǒng)、基于三重模件冗余（TMR）結(jié)構(gòu)的現(xiàn)代化的容錯(cuò)控制器。

3：Westinghouse（西屋）： OVATION系統(tǒng)、WDPF系統(tǒng)、WEStation系統(tǒng)備件。

4：Rockwell Allen-Bradley: Reliance瑞恩、SLC500/1747/1746、MicroLogix/1761/1763/1762/1766/1764、CompactLogix/1769/1768、Logix5000/1756/1789/1794/1760/1788、PLC-5/1771/1785等。

5：Schneider Modicon（施耐德莫迪康）：Quantum 140系列處理器、控制卡、電源模塊等。

6：ABB：工業(yè)機(jī)器人備件DSQC系列、Bailey INFI 90等。

7：Siemens(西門子)：Siemens MOORE， Siemens Simatic C1，Siemens數(shù)控系統(tǒng)等。

8：Motorola（摩托羅拉）：MVME 162、MVME 167、MVME1772、MVME177等系列。

9：XYCOM：I/O 、VME板和處理器等。

10：GE FANUC(GE發(fā)那科)：模塊、卡件、驅(qū)動(dòng)器等各類備件。

11：Yaskawa（安川）：伺服控制器、伺服馬達(dá)、伺服驅(qū)動(dòng)器。

12：Bosch Rexroth（博世力士樂）：Indramat，I/O模塊,PLC控制器,驅(qū)動(dòng)模塊等。

13：Woodward（伍德沃德）：SPC閥位控制器、PEAK150數(shù)字控制器。

14:工業(yè)機(jī)器人系統(tǒng)備件。

[Tsubaki] 100:1 Reducer Servo Motor Gear Reducer B220S100KP2 (EMS FAST SHIPPING)

[Shimpo-Nidec] 1:70 Able Reducer Servo Motor Reducer NIB VRGS-70D120-450

[Shimpo-Nidec] 1:45 Able Reducer Servo Motor Reducer NIB NEVSC-45D-200

[Omron] R88M-H30030 300W 3000rpm AC Servo Motor Used Fast Shipping

[Shimpo-Nidec] 1:3 Able Reducer Servo Motor Reducer NIB VRS-075B-3-S3-19DC19

[Omron] R88M-H30030 + 1:20 Servo Gear Reducer 300W 3000rpm AC Servo Motor Used

[Shimpo-Nidec] 1:25 Able Reducer Servo Motor Reducer NIB VRGS-25B60P-200

[Tsubaki] 70:1 Reducer Servo Motor Gear Reducer B220S070KP1 (EMS FAST SHIPPING)

[Omron] R88M-H30030-GA20B IMT Non backlash gears 1:20 Servo motor reducer

[Apex] 9:1 Ratio Servo Motor Gear Reducer AF075-S1-P1 (EMS FAST SHIPPING)

[Mitsubishi] FR-BU2-H55K Brake Unit for 400V class USED EMS/UPS Fast Shipping

[Siemens] 6SL3211-0AB21-5AA1 + Controller 230V 1ph Input 1.5kW TESTED used VFD

[Yaskawa] CIMR-V7DT22P2 CC-Link 3PH 240V 2.2kW 3HP Used Fast Shipping 3~5 days

[Yaskawa] CIMR-JTBA0006BAA 1PH 240V AC Input 0.75kW 1HP Used Fast Shipping

[Danfoss] VLT2805PT4B20SBR1DBF00A00 3ph 380V Inverter VLT 2800

[Mitsubishi] FR-E720-2.2K 2.2Kw 3HP 3 phase Inverter EMS/UPS Fast Shipping

[Mitsubishi] FR-E720-1.5K 1.5kW 2HP FREQROL E700 Inverter FAST SHIPPING

[Mitsubishi] FR-E540-3.7K 5HP 400V FREQROL E500 Inverter (EMS FAST SHIPPING)

[Mitsubishi] FR-E720-1.5K + FR-A7NC 1.5Kw 2HP 3 phase Inverter CC-Link Type

[Mitsubishi] FR-E540-1.5K 400V FREQROL E500 Inverter (EMS FAST SHIPPING)

[Mitsubishi] FR-E720-2.2K + FR-A7NC CC-Link Type 2.2Kw 3HP 3 phase Inverter

[Mitsubishi] FR-E720-5.5K + FR-A7NC CC-Link Type 5.5Kw 7.3HP 3 phase Inverter

[Telemecan?ique] ATV31H075N4 0.75kW 1HP 380/500V Inverter Fast Shipping 3~5 day

[Yaskawa] Inverter 0.2kw 200w CIMR-JT2A0002BAA J1000 (EMS FAST SHIPPING)

[Telemecanique/Schneider Electric] Altivar 21 HVAC ATV21HU75M3X 7.5kW 10HP

[LG] 3 Phase Inverter SV075iS5-2NU 10HP 7.5kW Unused (EMS Fast Shipping)

[Fuji Electric] Inverter FRN2.2E1S-2J 2.2kw 3PH 200-240V Fuji Inverter Brand New

[Fuji Electric] Inverter FRN2.2E1S-4J 2.2kw 3PH 380-480V Fuji Inverter Brand New

[Easyview] MT6100i V2EV Weintek Touch Screen USED HMI EMS / UPS Fast Shipping

[Proface] FP2600-T41-24V TESTED Touch Screen USED HMI EMS / UPS Fast Shipping

[Proface] GP030-MD11-o Touch Pannel HMI USED EMS/UPS Fast Shipping

[Proface] GP077-CFFM10 CF Card Touch Pannel HMI USED EMS/UPS Fast Shipping

[Omron] NT620C-ST141-EK Tested Omron Touch Pannel HMI USED EMS/UPS Fast Shipping

[Pro-face] GP2301-TC41-24V Proface Touch Pannel HMI USED EMS/UPS Fast Shipping

[Pro-face] PS3700A-T41-ASU-P41 Proface Touch Pannel HMI USED EMS/UPS Fast Ship

[Omron] NT31-ST122B-V2 Tested Omron Touch Pannel HMI USED EMS/UPS Fast Shipping

[Omron] NT31C-ST141-EKV1 Tested Omron Touch Pannel HMI USED EMS/UPS Fast Shippin

[Pro-face] GP2301-LG41-24V Proface Touch Pannel HMI USED EMS/UPS Fast Shipping

[Pro-face] GP2501-TC11 Proface Touch Pannel HMI USED EMS/UPS Fast Shipping

[Pro-face] AGP3600-T1-AF Proface Touch Pannel HMI New Screen USED Fast Shipping

[Pro-face] ST401-AG41-24V Proface Touch Pannel HMI USED EMS/UPS Fast Shipping

[Mitsubishi] A956GOT-SBD + A8GT-J6BT13 Graphic Operation Terminal+Data link Used

[Mitsubishi] Touch Screen GOT1000 GT1685M-STBA + GT15-J61BT13 (EMS FASTSHIPPING)

[Mitsubishi] Touch Screen Panel A970GOT-TBA + A9GT RS 232 C Interface Unit

[Mitsubishi] Touch Screen Panel HMI A950GOT-LBD (EMS FAST SHIPPING)

[Proface] GP2600 TC11 + GP2000 VM41 Touch Screen Video Module Used Fast Shipping

[Proface] GP2000H AP422 RS-422 Conversion Adapter Terminal 10128076041

[Pro-face] GP477R-EG11 110V Proface Touch Pannel HMI USED EMS/UPS Fast Shipping

[Proface] Touch Screen Panel GP2300-TC41-24V (EMS FAST SHIPPING)

[Pro-face] AST3501-T1-AF Proface Touch Pannel HMI USED EMS/UPS Fast Shipping

[Proface] Touch Screen Panel GP2600 TC11 HMI Graphic Panel (EMS FAST SHIPPING)

[Proface] Touch Screen Panel HMI GP2301-SC41-24V (EMS FAST SHIPPING)

[Proface] Touch Screen Panel HMI GP2301-SC41-24V include panel + cable as shown

[Proface] Touch Screen Panel GLC2600 TC41 24V HMI GraphicPanel EMS FAST SHIPPING

[Proface] Touch Screen Panel GP2300-SC41-24V (EMS FAST SHIPPING)

[Pro-face] GP2500-TC11 Proface Touch Pannel HMI USED EMS/UPS Fast Shipping

[Fuji Electric] UG420H-TC1 Touch Pannel HMI Fuji POD USED EMS/UPS Fast Shipping

[LS] XP10BKA/DC XGT Touch Panel HMI Excellent Codition USED EMS/UPS FastShipping

[Omron] F160-C10E-2 F160-KP F150-S1A F150-LTC20 Vision Mate Full Set TESTED

[Omron] E3X-SD11 Photoelectric Switch + Optical Fiber USED EMS/UPS Fast Shipping

[Omron] E6CP-AG5C-C Rotary Encoder Unused EMS/UPS Fast Shipping

[Omron] Safety Light Curtain F3SJ-A0245P20-D-S + F3SP (Control Unit) + Connector

[Sunx] DP-100 Digital Pressure Sensors New item

[Omron] Safety Light Curtain F3SJ-A0305P20-L-S + F3SP-B1P (Control Unit)

[Optex FA] BGS-DL30N(E) Laser Manual adjust Potentiometer EMS/UPS Fast Shipping

[Omron] E2EQ-X10Y1-1 Switch Sensor (Unused item but no box)

[Optex FA] BGS-30N Laser Photo Sensor NIB EMS/UPS Fast Shipping

[Omron] E2EQ-X5Y1-1 Switch Sensor (Unused item but no box)

[Omron] Safety Light Curtain F3SJ-A0695P20-L-S + F3SP-B1P (Control Unit) + Cable

[Panasonic] DP-100 Digital Pressure Sensors New item

[Micro-Epsilon] capacitive sensors capaNCDT DT6119(01) Cylindrical sensor,cables

[Micro-Epsilon] capacitive sensors capaNCDT DT6119(01) 4105030.01 SN2592

[PI] E-501.00, E-509.X1 PZT-Servo Controller, E-505.00 LVPZT Amplifier, E-515.0X

[Vexta] RKD507-A 5Phase Stepping Motor Driver 110V RS4AP33003 NIB Fast Shipping

[Vexta] RK543AA-T7.2 Stepping Motor Set 5Phase 110V RKD507-A PK543AW-T7.2 NIB

[NSK] EDC-PS1018AB501 Megatorque motor driver PS1-0590100 Used fast shipping

[Vexta] ASD16A-D Oriental Motor Driver

[Sawamura Denki] 1/25 Ratio Geared Motor SS40E40-B-L1-25 DC 24V NIB

[Sawamura Denki Kogyo] GM40A4DT DC Motor 24V with T.G Tacho gene Unused

[Oriental Motor] 5 Phase Driver UDK5214NW 200~230V~3.5A OZ8A790105 Stepper Drive

[ESA NSK] Megatorque YS2020A23-21 Driver + YS2020FN001 Motor + Cable

[Eurotherm] 2704 Advanced Temperature Controller EMS/UPS Fast Shipping 3~5 days

[Yokogawa] UP550E UT550 TESTED Temperature Contorller EMS/UPS Fast Shipping

[Yaskawa] SGDV-2R8A01B002000 SGDV-2R8A01B 400W Servo Driver Fast Shipping

[Keyence] XL-200 CV-701 CV-070 ,Memory, Cables Machine Vision Set Fast Shipping

[NSD] VS-5E Varicam 100V Controller USED EMS/UPS Fast Shipping

[Panasonic] ANPV0502ADN Image checker PV500 Controller USED EMS/UPS Fast Shippin

[Adimec] A4050m/2C A4050m CCD Carmera + Lenz USED EMS/UPS Fast Shipping

[NSD] VM-2AG-32 MRE-32SP062 Communications HUB Converter USED Fast Shipping

[Shoei Electric] CMP-92R Advanced Multistep Programmer 100V Used EMS UPSShipping

[Keyence] LK-G3000 Laser Displacement Controller Used EMS/UPS Fast Shipping

[Nohken] PU2000 Power Unit Unused EMS/UPS Fast Shipping 3~5 days

[Yamatake] IP50TCAKLAAD0 Unused EMS/UPS Fast Shipping 3~5 days

[NSD MRE-G128SP062FAC Absocoder encoder UnusedEMS/UPS Fast Shipping 3~5 days

[NSD] VRE-P062SAC Absocoder encoder UnusedEMS/UPS Fast Shipping 3~5 days

[Omron] S8VS-24024A Power Supply EMS/UPS Fast Shipping 3~5 days

[Omron] G3PB-225B-3-VD Solid State Contact EMS/UPS Fast Shipping 3~5 days

[Rexroth] QLC-1 Amplifier Used Fast Shipping 3~5 days

[Rexroth] VT1600S3X Servo Amplifier Used Fast Shipping 3~5 days

[Janome] JPU-504L JPBC-504 Q1AA07075DCPR1M Servo Presses Electro Press NIB

[Yokogawa] UT351E Digital Indicating Controller EMS/UPS Fast Shipping 3~5 days

[Omron] 3F7R-AC1H ARM Module Controller 100~110V

[Omron] 3F7R-AC1H ARM Module Controller 100~110V Used

[Telemecanique] ATS01N112FT Soft Starter SCHNEIDER AUTOMATION INC

[Kyowa] WGA-800C Measuring Instrument Amplifier EMS/UPS Fast Shipping 3~5 days

[Horibastec] SEC-E40 Mass Flow Controller EMS/UPS Fast Shipping 3~5 days

[Fuji Electric] PSR75IND 1ΦPS Controller

[Fuji Electric] SIGNAL CONTROLLER MCA Series MCA-HA AC200~220V NIB 2Y051

国产成人黄色,欧美大屁股,大鸡巴老司机19,久综合一区,日韩丰满熟女,亚洲禁久一二三区,亚洲鲁交在妇cvv,中国特色三级色情毛片,思思97热

18481 c120h 4p-125a斷路器

漳州鼎晟達(dá)自動(dòng)化設(shè)備有限公司