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

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

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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 pressure mPa (abs)
Initial t°
Final pressure mPa (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 connection Quantity
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 adjustment mPa (exc)
Design t°
Rated Ø
Rated pressure mPa (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 type Adsorber
Function Compressed air dryers in complete set with filters
Positions

7202D0001A/B

7202D0002A/B

7202D0003A/B

Quantity 6 pcs
Operating mode 87601 hours/year
Service life/inter-repair time
  1. ears/5years
  1. Use area conditions
Installation (allocation) type Indoor
Indoor air t° 12-25 °C
Climate region II 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 0,98 Minus 34°C
Average monthly air relative humidity of the most cold month 81%
Average monthly air relative humidity of the most warm month 68%
Seismicity by MSK-64 6 points
Winding region II A
Fire hazard room category B1
  1. Source data for designing

Compressed air
Operating t° 25-250 °C
Operating pressure 0,95 mPa
Dehydrated air dew point Minus 60 °C
Outlet t°, no more than
Design t°
Design pressure 1,15 mPa
Pressure losses, no more 0,05 mPa
Throughflow capacity 12500 nm3/h
  1. Operating media characteristic
Boiling point Minus 181°C (by Nitrogen)
Power consumption, no more 76 kW
Density 12,38 kg/m3
Dynamic viscosity 0,019 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 shape Elliptic
Gaskets material Spiral wound type gasket
Thermal treatment requirements, yes/no No
Flanges sealing surface B (joggle)
Isolation type No
Details for lining, yes/no No
Heating device, yes/no No
Corrosion allowance 1 mm
Loading cycles design quantity 7500

Unit is mounted on the supports:

on concrete foundation/on metal constructions

On concrete foundation
Details for platform fixing, yes/no no

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.

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

  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

Position Description Quantity DN PN, mPa Counter-flange
А Air inlet 1 150* 1,6 Yes
Б Air outlet 1 150* 1,6 Yes
В Air drop after regeneration 1 80* 1,6 Yes
Г For adsorbent loading 2 150* 1,6 Stopper
Д For adsorbent unloading 2 100* 1,6 Stopper
Е For manometer and pressure sensor 2 50* 4,0 Connection R3/4”
Ж For hydrometer sensor 1 50* 4,0 Stopper
И For thermal converter 2 50* 4,0 Stopper
К For flow control sensor 1 50* 4,0 Stopper
Л Condensate discharge 1 6* 1,6 -
М Hatch 1 350x450* 1,6 Cover

*- to be specified by the Supplier

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

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

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