罗克韦尔1746-NI16I

罗克韦尔1746-NI16I

那为什么会发生液氨泄漏？

作为循环使用的制冷剂，液氨在系统中是没有消耗的。因此，稳定运行一两年是不成问题的。然而，由于氨具有腐蚀性，而工作环境也是高压，长年累月下来，设备(尤其是管道的连接处和焊接处)由于腐蚀而出现漏洞，导致泄漏，更是必然的。因此，只要有足够的意识，就应该对整个制冷系统进行定期检查，防患于未然。

液氨泄漏会迅速汽化为氨气气体，人如果暴露在超过 500ppm 的氨气环境下就会引起急性中毒；而当空气中的氨气浓度超过 11%时，遇见明火就会发生燃烧，现场有油类或其它可燃性物质存在时，还可能引发更大的爆炸灾害。这也是工业企业定期针对液氨系统链接部位进行巡检检查的原因。

针对氨气泄漏可以建立完善的泄漏预警制度，采用氨气检测报警器在易泄漏点位实时检测，在氨气泄漏发生时即刻给出泄漏预警信息，这样就可以减少氨气泄漏的影响范围，避免发生二次伤害，一些工厂因为氨气泄漏初期并未及时的获取泄漏信息而了佳的处理时机导致氨气浓度不断升高，进而引发重大的事故，国家规定涉及液氨、使用车间仓库安装检测氨气浓度的检测仪探测器，也侧面反应了氨气检测报警器对于预防泄漏引发重大事故的安防意义和作用。

1746-NI16I

1746-NI16I 

CH Westinghouse 5HLE-400E Fuse 5.5kV Size E NIB

I-T-E K-1600 K1600 1600Amp Digitrip RMS R810 Draw ITE

Square D I-Line Breaker KC24150AC KC 150 Amp A 150A

Square D I-Line Breaker KC24150BC KC 150 Amp A 150A

AB Allen Bradley 50406 Driver Power Supply Board

Allen Bradley 1336-MOD-E1 1336VFD Hand-Held Programmer

Square D I-Line Breaker KC24150AB KC 150 Amp A 150A

Bolt Loc Bolted Pressure Switch VL 3612 G5 3000 Amp Gnd

GE 8000 Series Size 1 Breaker Type MCC Bucket MCCB

Reliance Electric 0-52876 VTGA Circuit Board 052876

Reliance Electric 0-52874-1 VTAB Circuit Board 0528741 

Northern Telecom NT8D21AA Rng Gen Rlse10 Ring Generator

Westinghouse/C-H 2100 18in 150A Feeder Bucket MCCB

Reliance Electric 0-52875-1 VTDB Circuit Board 0528751 

AB Allen Bradley 140310 Board Precharge

Yokogawa VR204-0/A1/D2 View Recorder VR200 100-240VAC

ACME Transformer 2 kVA 240 x 480 120Y V 2kVA 3R 1 Ph

Square D I-Line Panelboard 600 Amp 208Y/120 Lug-In

Agastat 7012CKY2 7000 Series Timing Relay 1-300 sec

Westinghouse Breaker EHD EHD3010 10A A 10Amp 10 Amp

Yokogawa VR204S2-0/A2/D2 View Recorder VR200 100-240VAC

Yokogawa VR204-0/A2/S25N View Recorder VR200 100-240VAC

IT 19SHT-122 Current Transformer 1200:5 A 5A 19-SHT

Bussmann KRP-C-800SP 800 Amp Fuse 600VAC 300VDC NIB/NEW

Northern Telecom NT5D03BA CP 68060E/64MB

Toshiba Vacuum Contactor YDCT Motor Starter 600 HP 460V

AB Allen Bradley 120852 Interface PCB Rev 01 140655

Bussmann JCL-12R 230 Amp Fuse R-Rated 12R JCL12R NIB

Mitsubishi Breaker NF-225-CS NF 200 Amp 200Amp 200A A

Bussmann Box of 10 Tron KAB-35 Rectifier Fuses NIB

WICC 1640:1A Current Transformer 652F-1640-01-T 1640:1

Square D I-Line Main Lug Panelboard 1200Amp 600V 3P 4W 

Fuji Electric Magnetic Contactor SC-14N 600A 480kW NIB

Mitsubishi Breaker NV225-SP NV225SP NV 200 Amp 200A A

SOLA Uninterruptible Power Supply Mini-UPS/2 500A 058

GE 8000 Sz Size 4 Breaker MCC Bucket MCCB 150 A Amp

Mitsubishi Breaker NV225-SP NV 125 Amp 125Amp 125A A

Westinghouse/IT 360-352 Current Transformer 3500:5 A 5A

Allen Bradley 15 HP Inverter Duty Motor 1780 RL21732

Square D Schneider Masterpact NW12L 1200 Amp 1200A NIB 

Cutler Hammer Westinghouse EHD3020 20A A 20 Amp

Allen Bradley 15 HP Inverter Duty Motor 1780 RL2173

Square D I-Line Main Lug Panelboard 225Amp 480V 3P 4W 

Allen Bradley AB size 00 509-TOD Starter 509TOD 9A 600V

Honeywell NXS0250A1001 25 HP HP Variable VF VS Drive

CMC Cleveland Machine BLS20-300-201 Servo System

Square D I Line Breaker ME836LIG 500Amp 500A 500 Amp A

Square D I Line Breaker ME836LIG 800Amp 800A 800 Amp A

Honeywell NXS0050B1001 5 HP Variable VF VS Drive Refurb