Engineering Design Code for Rotary Machines in Petrochemical Industries English
1 General Provisions
1.0.1 This code is developed for the purposes of ensuring the rotary machines for petrochemical service in long-term, stable and safe operation and satisfying energy conservation and environment protection requirements.
1.0.2 This code is applicable for the design of rotary machines for petrochemical service.
1.0.3 In addition to this code, the design of rotary machines for petrochemical service shall also comply with the current applicable national codes and standards.
2 Terms
2.0.1
rotary machines
rotating equipment used in various process and utilities in petrochemical plants.
2.0.2
pumps
machines used for transferring or boosting liquids.
2.0.3
hydraulic power recovery turbines
machines used to recover the energy from liquid pressure drop in industrial production plants, also known as hydraulic power recovery turbines.
2.0.4
mechanical agitators
machines comprising agitating impellers, agitating shafts, shaft seal systems and driving equipment (drivers, gear units, frames and couplings) .
2.0.5
vacuum pumps
machines used to draw vapor out of container, creating a vacuum inside.
2.0.6
compressors
fluid machines used to increase gas pressure energy and transfer gas with outlet pressure larger than 0.2MPa (G) or compression ratio larger than 3.
2.0.7
fans
fluid machines used to increase gas pressure and deliver the gas.The machines with outlet pressure less than or equal to 0.03MPa (G) or compression ratio less than or equal to 1.3 are defined as fans (including induced draft fans) , and the machines with outlet pressure higher than 0.03MPa (G) but less than 0.2MPa (G) or compression ratio larger than 1.3 but less than or equal to 3 are defined as forced draft blowers.
2.0.8
steam turbines
machines using steam expansion to do work.
2.0.9
expanders
machines using gas expansion to do work for energy recovery.
2.0.10
gas turbines
machines using expansion of high temperature and high pressure gas generated from fuel combustion to do work.
2.0.11
centrifuges
machines using centrifuge force to separate liquid and solid particles or non-compatible liquids.
3 Basic Requirements
3.1 General Requirements
3.1.1 The rotary machines used for petrochemical service shall be designed and constructed for a minimum service life of 20 years (excluding the wearing parts) , and the uninterrupted operation cycles shall be no less than the service years indicated in Table 3.1.1.
3.1.2 The rotary machines shall be within the scope of their design and manufacture experience, and at least one same or similar model rotary machine have been running successfully under same or similar operating conditions for two years or more.
3.1.3 On-lines pares shall be provided for the pumps, medium-and small-size fans/blowers, instrument air centrifugal compressors and reciprocating compressors in continuous operation, one on-line spare shall be provided for the single pump (rotary machine) , and at least one on-line spare shall be provided for several pumps (rotary machines) arranged in parallel operation.Off-line spare parts shall be provided for the agitators in continuous operation.On-line spares may not be provided for the large-size fans/blowers, centrifugal compressors and gas turbines, but long term parts should be provided as critical/capital spare parts for them.
3.1.4 When the medium contain H2S, chloride or other components that may result in stress corrosion, or the medium contain any components that may be subject to reaction with copper or copper alloy, they shall be indicated in the datasheets or technical requisition documents.The construction materials of rotary machines shall be suitable for the requirements for these medium.
3.1.5 The complete unit of rotary machine shall include all equipment, pipes, valves, electrical, instrument and control systems within the scope of supply.
3.1.6 The design pressure of steam jacket and cooling water jacket shall be no less than the maximum working pressure of their respective external supply systems.
3.1.7 The minimum temperature rise at the water side of cooling system shall comply with the utilities conditions.When gas cooler is used, the minimum temperature rise shall be at least equal to 8℃, and when oil cooler is used, the minimum temperature rise shall be at least equal to 4℃.
3.1.8 The general design of rotary machines shall be easy for operation and maintenance, the construction design should allow easy dismantling of rotors without removing the process pipes on the casings, and the engineering design shall provide sufficient spaces and accesses and shall be easy for equipment and pipe maintenance, hot insulation, cold insulation and personnel protection insulation installation.
3.1.9 The rotary machines should be shipped as complete units.For oversize equipment, they may be shipped by segments.For fragile parts, they may be removed after test, and then shipped in separate, and the mating surfaces shall be marked.All fragile parts shall be specified in the installation manuals.
3.2 Allowable Working Pressure and Allowable Working Temperature of Rotary Machines
3.2.1 The allowable working pressure and allowable working temperature of rotary machines shall be determined based on the process operating conditions and design parameters of rotary machines.
3.2.2 The maximum allowable working pressure of pressure-containing casings shall conform to Table 3.2.2, and shall match with pressure ratings of adjacent flanges.
3.3 Inlets, Outlets and Other Connections
3.3.1 The inlets, outlets and other connections of rotary machines shall be flanged, and the flange standards and pressure rating shall be specified in the inquiries or datasheets.
3.3.2 The connections within the rotary machines may use other flange standards beyond those specified in the inquiries or datasheets, the applicable standards and nominal pressure ratings for flanges may follow AppendixA of this code.
3.4 Materials
3.4.1 The construction materials of rotary machines shall comply with the following requirements:
1 The material requirements for the pressure-containing parts and other main components of rotary machines shall be specified in the inquiries or datasheets, final material selection shall be specified in the proposals of the manufacturers, and specific material codes shall be indicated in the datasheets.
2 Welded pressure-containing parts shall be subject to post weld heat treatment and nondestructive test.
3 Except for cast steel parts, repair welding shall not be made on all pressure-containing cast parts.If repair welding is required for cast steel parts, it shall comply with Article 11.2.3 of this code.
4 If the specified minimum design metal temperature is lower than-20℃, low temperature impact test shall be made for the base metal and welds of all pressure-containing steels except for austenitic stainless steel.
5 If chlorides are present in the medium, the component materials in contact with the medium should not be aluminum and austenitic stainless steel.
6 When the medium contact with copper and then generate explosive copper compounds, copper or copper alloy shall not be used to fabricate the parts.
Standard
GB/T 51007-2014 Engineering Design Code for Rotary Machines in Petrochemical Industries (English Version)
Standard No.
GB/T 51007-2014
Status
valid
Language
English
File Format
PDF
Word Count
31000 words
Price(USD)
300.0
Implemented on
2015-4-1
Delivery
via email in 1 business day
Detail of GB/T 51007-2014
Standard No.
GB/T 51007-2014
English Name
Engineering Design Code for Rotary Machines in Petrochemical Industries
Engineering Design Code for Rotary Machines in Petrochemical Industries English
1 General Provisions
1.0.1 This code is developed for the purposes of ensuring the rotary machines for petrochemical service in long-term, stable and safe operation and satisfying energy conservation and environment protection requirements.
1.0.2 This code is applicable for the design of rotary machines for petrochemical service.
1.0.3 In addition to this code, the design of rotary machines for petrochemical service shall also comply with the current applicable national codes and standards.
2 Terms
2.0.1
rotary machines
rotating equipment used in various process and utilities in petrochemical plants.
2.0.2
pumps
machines used for transferring or boosting liquids.
2.0.3
hydraulic power recovery turbines
machines used to recover the energy from liquid pressure drop in industrial production plants, also known as hydraulic power recovery turbines.
2.0.4
mechanical agitators
machines comprising agitating impellers, agitating shafts, shaft seal systems and driving equipment (drivers, gear units, frames and couplings) .
2.0.5
vacuum pumps
machines used to draw vapor out of container, creating a vacuum inside.
2.0.6
compressors
fluid machines used to increase gas pressure energy and transfer gas with outlet pressure larger than 0.2MPa (G) or compression ratio larger than 3.
2.0.7
fans
fluid machines used to increase gas pressure and deliver the gas.The machines with outlet pressure less than or equal to 0.03MPa (G) or compression ratio less than or equal to 1.3 are defined as fans (including induced draft fans) , and the machines with outlet pressure higher than 0.03MPa (G) but less than 0.2MPa (G) or compression ratio larger than 1.3 but less than or equal to 3 are defined as forced draft blowers.
2.0.8
steam turbines
machines using steam expansion to do work.
2.0.9
expanders
machines using gas expansion to do work for energy recovery.
2.0.10
gas turbines
machines using expansion of high temperature and high pressure gas generated from fuel combustion to do work.
2.0.11
centrifuges
machines using centrifuge force to separate liquid and solid particles or non-compatible liquids.
3 Basic Requirements
3.1 General Requirements
3.1.1 The rotary machines used for petrochemical service shall be designed and constructed for a minimum service life of 20 years (excluding the wearing parts) , and the uninterrupted operation cycles shall be no less than the service years indicated in Table 3.1.1.
3.1.2 The rotary machines shall be within the scope of their design and manufacture experience, and at least one same or similar model rotary machine have been running successfully under same or similar operating conditions for two years or more.
3.1.3 On-lines pares shall be provided for the pumps, medium-and small-size fans/blowers, instrument air centrifugal compressors and reciprocating compressors in continuous operation, one on-line spare shall be provided for the single pump (rotary machine) , and at least one on-line spare shall be provided for several pumps (rotary machines) arranged in parallel operation.Off-line spare parts shall be provided for the agitators in continuous operation.On-line spares may not be provided for the large-size fans/blowers, centrifugal compressors and gas turbines, but long term parts should be provided as critical/capital spare parts for them.
3.1.4 When the medium contain H2S, chloride or other components that may result in stress corrosion, or the medium contain any components that may be subject to reaction with copper or copper alloy, they shall be indicated in the datasheets or technical requisition documents.The construction materials of rotary machines shall be suitable for the requirements for these medium.
3.1.5 The complete unit of rotary machine shall include all equipment, pipes, valves, electrical, instrument and control systems within the scope of supply.
3.1.6 The design pressure of steam jacket and cooling water jacket shall be no less than the maximum working pressure of their respective external supply systems.
3.1.7 The minimum temperature rise at the water side of cooling system shall comply with the utilities conditions.When gas cooler is used, the minimum temperature rise shall be at least equal to 8℃, and when oil cooler is used, the minimum temperature rise shall be at least equal to 4℃.
3.1.8 The general design of rotary machines shall be easy for operation and maintenance, the construction design should allow easy dismantling of rotors without removing the process pipes on the casings, and the engineering design shall provide sufficient spaces and accesses and shall be easy for equipment and pipe maintenance, hot insulation, cold insulation and personnel protection insulation installation.
3.1.9 The rotary machines should be shipped as complete units.For oversize equipment, they may be shipped by segments.For fragile parts, they may be removed after test, and then shipped in separate, and the mating surfaces shall be marked.All fragile parts shall be specified in the installation manuals.
3.2 Allowable Working Pressure and Allowable Working Temperature of Rotary Machines
3.2.1 The allowable working pressure and allowable working temperature of rotary machines shall be determined based on the process operating conditions and design parameters of rotary machines.
3.2.2 The maximum allowable working pressure of pressure-containing casings shall conform to Table 3.2.2, and shall match with pressure ratings of adjacent flanges.
3.3 Inlets, Outlets and Other Connections
3.3.1 The inlets, outlets and other connections of rotary machines shall be flanged, and the flange standards and pressure rating shall be specified in the inquiries or datasheets.
3.3.2 The connections within the rotary machines may use other flange standards beyond those specified in the inquiries or datasheets, the applicable standards and nominal pressure ratings for flanges may follow AppendixA of this code.
3.4 Materials
3.4.1 The construction materials of rotary machines shall comply with the following requirements:
1 The material requirements for the pressure-containing parts and other main components of rotary machines shall be specified in the inquiries or datasheets, final material selection shall be specified in the proposals of the manufacturers, and specific material codes shall be indicated in the datasheets.
2 Welded pressure-containing parts shall be subject to post weld heat treatment and nondestructive test.
3 Except for cast steel parts, repair welding shall not be made on all pressure-containing cast parts.If repair welding is required for cast steel parts, it shall comply with Article 11.2.3 of this code.
4 If the specified minimum design metal temperature is lower than-20℃, low temperature impact test shall be made for the base metal and welds of all pressure-containing steels except for austenitic stainless steel.
5 If chlorides are present in the medium, the component materials in contact with the medium should not be aluminum and austenitic stainless steel.
6 When the medium contact with copper and then generate explosive copper compounds, copper or copper alloy shall not be used to fabricate the parts.