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

Categories Air Separation Plant
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 Centrifugal Compressor Unit Long Service Life


    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

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