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3000nm3 / H Nitrogen Plant Centrifugal Compressor Unit Long Service Life

HANG ZHOU TAI LIAN CRYOGENIC EQUIPMENT CO., LTD.

Country/Region:china

Contact Person:MrYao junming View Contact Details

3000nm3 / H Nitrogen Plant Centrifugal Compressor Unit Long Service Life

Brand Name : Tailian
Certification : ISO
Place of Origin : Hangzhou,China
MOQ : 1 set
Price : negotiation
Payment Terms : L/C, T/T
Supply Ability : 1 set per year
Delivery Time : 6 month after payment
Packaging Details : wooden case
Equipment type : Centrifugal compressor unit
Equipment purpose : Air compression
Operation compressors quantity : 2 pcs
Standby compressors quantity : 1 pc
Total compressor quantity : 3 pcs
Operation mode : 8160 hours/year
Service life : 20 years
Inter-repair time : 5 years
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3000nm3/h Nitrogen Plant Air Separation Plant Centrifugal Compressor Unit


  1. Specific requirements

5.4.17. Centrifugal compressor units should be equipped with control, alarm and blocking systems, taking part of anti-damage system, which should span into action while these values are exceeded. Operational procedure of compressor stopping and standby switching is specified by compressor unit operation algorithm developer.

5.4.18. The control is needed over at least the following parameters:

- gas t° at suction of all stages

- gas t° at pumping of all stages

- water t° at the compressor unit inlet

- water t° at the outlet of each refrigerator

- oil t° in the oil tank

- oil t° at the oil refrigerators inlets/outlets

- bearings t°

- gas pressure at suction and at pumping of each stage

- oil pressure before oil refrigerator

- oil pressure before and after the oil filter (drop)

- lubricating oil pressure in collector and at each point of its supply

- sealing oil pressure at each point of its supply

5.4.19. Warning alarm system should be used at least for the following parameters:

- while suction pressure drops

- while the last stage pumping pressure raises

- while oil and cooling water pressure drops

- while level in separators raises

- while rotor vibration level raises and axial thrust increases

- while pressure differential increases at oil filters

- while decreases differential pressure “sealing gas-gas” or “sealing oil-gas”

- while oil level in oil tank drops

- while oil t° increases or decreases after oil refrigerators

5.4.20. Alarm warning and blocking should cover at least the following parameters:

- while suction pressure level drops below acceptable value

- while differential pressure level “sealing gas-gas” or “sealing oil-gas” decreases below acceptable value

- while suction pressure level increases over the acceptable value

- while the rotor axial thrust value increases

- while cooling water pressure level drops below the limiting value and while where is no water flow

- while oil pressure level drops below the limiting acceptable value and while there is the minimal oil level in oil tanks

5.4.21. Except the above mentioned safety interlocks, should be at least provided interlocks, which do not allow to start the compressor while:

- suction pressure is below the acceptable value

- low differential pressure “sealing gas-gas” or “sealing oil-gas” and low pressure in lubricating system (below the acceptable value) and while oil level in oil tank is below the minimum possible value

- cooling water low pressure and absence offlow hole

- hooking of jacking gear with rotor shaft

- oil lack in oil vessel

- non-conformance of bearings t° to designed values

5.4.22. Blocking actuating for stopping the compressor should be done while blocking values are reached at minimum 2 anti-damage devices.

5.4.22. Explosion protection level of electrical means should correspond to the category and group of explosive mixture at their installation place.

5.4.23. The Supplier should provide the anti-surging system

5.4.24. Shaft seals and corresponding sealing system of the centrifugal compressor unit should be designed to support the maximal pressure at the compressor outlet. Applicable mechanical seals, not depending on their type or configuration, should be of cartridge type, if other is not mentioned in the custom documentation for delivery.

5.4.25. Clutch couplings should be of the safe multi-disc and buffer type, with stainless steel discs. While launching the electric motor shaft, the reducer, clutch couplings and compressor rotor, the system should bear the transition torques, related to the short circuit and/or to the repeated acceleration after the momentary power interruption.

5.4.26. For the equipment, taking part of the compressor, it is necessary to provide the axial and side screw thrusters.

5.4.27. If the electric motor is chosen as a compressor drive, the smooth starting device should be provided.

5.4.28. Compressor, compressor drive and reducer should be mounted on the same base-plate, if there are no other requirements in the custom documentation. Base-plates should have vertical screws for level adjusting at the erection site.

5.4.29. While choosing materials for assembly units and details manufacturing it is needed to consider the pressure, temperature (maximal and minimal), media character and chemical composition, materials processing characteristics and corrosion resistance.

5.4.30. Materials quality and characteristics should be confirmed by the enterprise-supplier in related Certificates. In case of absence of accompanying Certificates for materials or information about any trials types, the trials should be done at the equipment manufacturing company in accordance with standards or specifications requirements for such materials.

5.4.33. The compressors common SPTA (spare parts, tools and accessories):

- sealing rings, cuffs – 1 set

- filtering elements – 3 sets

- reducer bearings – 1 set

- resilient elements for plate clutches – 1 set

- fingers for clutches – 1 set

- backup sealing for each installed static gasket (housing, bearing support etc) – 4 sets

- isolators (for 6 kW electric motor) – 2 sets

- 10% of each type of control and measuring apparatus (but not less than 1 pc of each type)

- 10% (but not less than 2 pcs) of each type and size of built-in nuts and studs.


  1. FORM FOR FILLING BY THE SUPPLIER*
Pumping unit supplier
Pumping unit gross weight, kg
Compressor manufacturer
Compressor model designation
Compressor type by API 618
Climatic version

Compressor unit dimensions WxLxH, mm
Refrigerating fluid total consumption, m3/h
Drive manufacturer
Drive model designation
Explosion protection marking
Protection degree (by standard)
Isolation class

Compressor parameters

Operating mode
    Weight output
    Initial pressuremPa (abs)
    Initial t°
    Final pressuremPa (abs)
    Final t°
    Compressor mechanical c
    Compressor power
    Compressor rated pressure (design)mPa (abs)
    Stages/cylinders quantity
      Cylinders layout (horizontal/vertical)
      Cylinders lubrication
      Lubrication type
      Heating (yes/no)
      Cylinders cooling media
      System (opened/closed)

      Compressor materials

        Piston/connecting rod
        Auxiliary pipings
        Counter flanges

          Compressor control and testing instrumentation

          t° sensor manufacturer
          Model designation/quantity
          Output signal/measuring range
          Process connection
          Cable input type

          Drive control and testing instrumentation

          t° sensor manufacturer
          Model designation/quantity
          Output signal/measuring range
          Process connection
          Cable input type
          Stator winding t° sensor manufacturer
          Model designation/quantity
          Measuring range
          Rated static characteristic

          Drive parameters

          Initial power/cosȹ
          Voltage/frequency/phases quantity
          Shaft rotation frequency
            Inlet connection (zone) boxes quantity (layout)
            Cable entry-plates quantity in connection boxes
              Diameter of cable for connection, min/max
                Gland inlet type size
                Frequency converter
                  Stator heating/winding overheat protection
                      Model designation
                      Type
                      Materials
                      Flange connectionQuantity
                      Compressor unit inlet
                      Compressor unit outlet
                        Vent valve
                            Heater

                            Pressure sensor manufacturer (inlet)
                            Model designation/quantity
                            Output signal/measuring range
                            Connection to the process
                            Cable entry-plate type
                            Pressure sensor manufacturer (outlet)
                            Model designation/quantity
                            Output signal/measuring range
                            Connection to the process
                            Cable entry-plate type
                            Temperature sensor manufacturer
                            Model designation/quantity
                            Output signal/measuring range
                            Connection to the process
                            Cable entry-plate type
                            Manometer manufacturer
                            Model designation/quantity/
                            Measuring range

                            *- The form is mandatory to fill in. The Suppliers’ form is acceptable if it contains all data, mentioned in Section 6.


                            1. FORM FOR FILLING BY THE SUPPLIER (CONTINUATION)*
                              Bearings type
                              Quantity (pcs)

                              Initial separator

                                Model designation
                                Quantity, pcs
                                Rated volume, m3
                                Design t°, °C
                                Design pressure, mPa (exc)
                                Heating, yes/no

                                Final separator

                                  Model designation
                                  Quantity, pcs
                                  Rated volume, m3
                                  Design t°, °C
                                  Design pressure, mPa (exc)
                                  Condensate drain, yes/no

                                  Pulsations damper

                                    Model designation
                                    Rated volume, m3
                                    Rated t°, °C
                                    Design pressure, mPa (exc)
                                    Condensate drain, yes/no
                                    Layout (horizontal/vertical)

                                    Inlet filter

                                      Model designation
                                      Filtering element type

                                      Filter of the gas

                                        Model designation
                                        Filtering element type
                                        Quantity, pcs

                                        Lubrication system

                                        Lubrication system type
                                        Operating t°, °C
                                        Operating pressure, mPa (exc)

                                        Cooler of the oil

                                          Model designation
                                          Quantity, pcs
                                          Thermal load, kcal/h
                                          Heat-exchange surface, m3
                                          Design t°, °C
                                          Design pressure, mPa (exc)

                                          Oil separator

                                            Model designation
                                            Design pressure, mPa (exc)
                                            Filter model designation

                                            Cooler for the gas

                                              Model designation
                                              Quantity, pcs
                                              Thermal load, kcal/h
                                              Heat-exchange surface, m3
                                              Design t°, °C
                                              Design pressure, mPa (exc)

                                              Safety valves

                                                  Pressure of adjustmentmPa (exc)
                                                  Design t°
                                                  Rated Ø
                                                    Rated pressuremPa (exc)

                                                    Filter of the oil

                                                      Model designation
                                                      Filtering element type
                                                      Quantity, pcs

                                                      *- The form is mandatory to fill in. The Suppliers’ form is acceptable if it contains all data, mentioned in Section 6.


                                                        Production technology

                                                        1. General information
                                                        Equipment typeAdsorber
                                                        FunctionCompressed air dryers in complete set with filters
                                                        Positions

                                                        7202D0001A/B

                                                        7202D0002A/B

                                                        7202D0003A/B

                                                        Quantity6 pcs
                                                        Operating mode87601 hours/year
                                                        Service life/inter-repair time
                                                        1. ears/5years
                                                        1. Use area conditions
                                                        Installation (allocation) typeIndoor
                                                        Indoor air t°12-25 °C
                                                        Climate regionII B
                                                        Absolute maximal air t°40°C
                                                        Absolute minimal air t°Minus 47°
                                                        Air t° of the most cold five-days period with use factor ratio 0,98Minus 34°C
                                                        Average monthly air relative humidity of the most cold month81%
                                                        Average monthly air relative humidity of the most warm month68%
                                                        Seismicity by MSK-646 points
                                                        Winding regionII A
                                                        Fire hazard room categoryB1
                                                        1. Source data for designing

                                                        Compressed air
                                                        Operating t°25-250 °C
                                                        Operating pressure0,95 mPa
                                                        Dehydrated air dew pointMinus 60 °C
                                                        Outlet t°, no more than
                                                        Design t°
                                                        Design pressure1,15 mPa
                                                        Pressure losses, no more0,05 mPa
                                                        Throughflow capacity12500 nm3/h
                                                        1. Operating media characteristic
                                                        Boiling pointMinus 181°C (by Nitrogen)
                                                        Power consumption, no more76 kW
                                                        Density12,38 kg/m3
                                                        Dynamic viscosity0,019 cp
                                                        1. Apparatus design
                                                        Conditional unit volume, m3*
                                                        Internal Ø, mm*
                                                        Cylindrical part length, mm*
                                                        Absorbent weight, kg*
                                                        Main elements material*
                                                        Internal devices material*
                                                        Bottom shapeElliptic
                                                        Gaskets materialSpiral wound type gasket
                                                        Thermal treatment requirements, yes/noNo
                                                        Flanges sealing surfaceB (joggle)
                                                        Isolation typeNo
                                                        Details for lining, yes/noNo
                                                        Heating device, yes/noNo
                                                        Corrosion allowance1 mm
                                                        Loading cycles design quantity7500

                                                        Unit is mounted on the supports:

                                                        on concrete foundation/on metal constructions

                                                        On concrete foundation
                                                        Details for platform fixing, yes/nono

                                                        Note:

                                                        1. Operating mode is round-the-clock, year-round, continuous. Operating hours quantity per year – 8760, and 8160 operating hours in the year of heavy repair.
                                                        2. * - Should be specified by the Supplier in accordance with the Customer.

                                                        1. Vessel draft

                                                        1. Adsorber
                                                        2. Air-heater
                                                        3. Control system
                                                        4. Frame

                                                        * Dimensions are to be specified by the Supplier

                                                        3.4. Connections sheet

                                                        PositionDescriptionQuantityDNPN, mPaCounter-flange
                                                        АAir inlet1150*1,6Yes
                                                        БAir outlet1150*1,6Yes
                                                        ВAir drop after regeneration180*1,6Yes
                                                        ГFor adsorbent loading2150*1,6Stopper
                                                        ДFor adsorbent unloading2100*1,6Stopper
                                                        ЕFor manometer and pressure sensor250*4,0Connection R3/4”
                                                        ЖFor hydrometer sensor150*4,0Stopper
                                                        ИFor thermal converter250*4,0Stopper
                                                        КFor flow control sensor150*4,0Stopper
                                                        ЛCondensate discharge16*1,6-
                                                        МHatch1350x450*1,6Cover

                                                        *- to be specified by the Supplier


                                                        Product Tags:

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