V type diaphragm compressor for high purity gases

 
1  Equipment specifications and requirements
1.1 Location and site conditions:
(1)     installation location: Indoor
(2)   :  dIIBT4,
Explosion protection requirements: Motor dIIBT4, 
1.2:  Common engineering criteria
(1)    Cooling water
 Pressure                       3~5 Bar (G)
Water inlet temperature        ≤ 30ºC
 (2) Electric                         3P/380  VAC/ 50HZ, 
1.3 Drive method: Electric motor , Belt drive
1.4  Processing technology and parameter requirements
(1)Suction pressure:            7 bar  (G)
(2) Discharge pressure:          160bar (G) 
(3) Suction Capacity:            50Nm3/h
(4)  Media:                 CH4 C2H4
(5) Suction temperature:         ≤30 ºC
(6) Temperature of water inlet:    ≤30 ºC

2 Technical Parameters

2.1  Main Technical Specifications
(1) Model:                       GL2-50/7-160
(2) Type                      
L-type, water-cooling,two-stage Compression
(3) Drive method      Crank shaft and connecting rod
(4)  Media   :             CH4  C2H4
(5)Suction Capacity:            50Nm3/h
(6) Suction pressure:            7 bar  (G)
(7) Discharge pressure:           160bar(G)
(8) Suction temperature:           ≤30 ºC
(9)Discharge temperature:         ≤45 ºC
(10)Lube oil temperature:        ≤70 ºC
(11) Crank shaft speed:        420r/min
(12) Piston stroke:             105 mm
(13) Shaft power:                ≤9.5.kW
(14) Water-inlet temperature:       ≤30 ºC
(15) Cooling water consumption    1200L/h
(16)Lube oil trademark:        L-HM -68
                                      L-HM-68# Chemical-Resistant Lube oil
(18) :Amount of the first oil:       25Kg
(19) Transmission method:          strap transmission
2.2  Electromotor
(1)Model:                         YB3-160L-4 
(2) Power:                       15kW
(3) Electromotor speed:             1460r/min
(4) Supply voltage                 380V/50Hz
(5) Defend exploding grade:     dIIBT4
(6) Defend and insulation request:  IP55/F
2.2.1 Electromotor
(1)Model:                         YB3-80L-4 
(2) Power:                       0.75kW
(3) Electromotor speed:            1400r/min
(4) Supply voltage                 380V/50Hz
2.3 Compressor skid
(1) Dimensions:     1700×850×1150mm
(2) Weight:                          1100 kg

3  Technical requirements
3.1 Materials in contact with the medium and compression
(1) Gas cover:                       3Cr13
(2) Diaphragms:                 /00Cr15Ni5.
(3) Suction valve and Discharge valve:  
  Hoerbiger / Cozzani,baohua
(4) 304 stainless steel
Pipeline, Joint, Flange, Cooler, etc.,  304stainless steel 
3.2 Important accessory material
(1) Diaphragm head:                  45
(2) Perforated plate:                45
(3) Piston pole:                    40Cr
(4) Crankcase:                      HT200
(5) Cross-head:                     QT600-3
(6) Oil-pipeline                     304  stainless steel
(7) Strap                      Anti static triangle belt
3.3   The request to Equipment
(1) Compressor,electromotor,assistant equipment,gauge and pipeline install on the underpan ;
(2) Supply Specialties tools,spare parts and document one set.
(3) PID;Affording the control principle drawing.
3.4  All of the compressor control
(1)Auto alarm for 1st stage diaphragm rupture
Auto alarm for 1st stage diaphragm rupture,the pressure is higher than 0.25MPa, compressor alarm shutdown, 
(2) Auto alarm for 1st stage diaphragm rupture
Auto alarm for 2st stage diaphragm rupture,the pressure is higher than 0.25Mpa, compressor alarm shutdown, 

4 High exhaust pressure protection
16.5 MPa,
Exhaust pressure is higher than 16.5mpa, compressor alarm