1 Scope
This guideline gives the method for pipeline sizing in petrochemical industry.
This guideline is applicable to pipeline sizing in petrochemical industry, and is not applicable to pipeline sizing of non-newtonian fluid, pneumatic and hydraulic transmission pipelines.
2 Normative references
The following referenced documents are indispensable for the application of this guideline. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 16912 Safety technical regulation for oxygen and relative gases produced with cryogenic method
GB 50031 Norm of acetylene plant design
GB 50177 Design code for hydrogen station
SH/T 3108 Specifications for design of interconnecting process and thermal piping in petrochemical industry
3 Terms and definitions
For the purposes of this guideline, the following terms and definitions apply.
3.1
newtonian fluid
fluid whose ratio of shear stress to shear rate is constant and equal to its dynamic viscosity in the flow process
3.2
non-newtonian fluid
fluid whose ratio of shear stress to shear rate is not constant in the flow process
3.3
compressible fluid
fluid whose density changes with pressure
3.4
incompressible fluid
fluid whose density does not change with pressure, or fluid whose density changes but changes very little
3.5
superficial velocity
velocity calculated assuming that only one phase of the substance flows in the pipe in a gas-liquid two-phase flow
3.6
homogeneous velocity
velocity calculated assuming that the gas phase and the liquid phase in the gas-liquid two-phase flow have the same velocity and can be regarded as a homogeneous mixture
3.7
homogeneous density
density calculated assuming that the gas phase and the liquid phase in the gas-liquid two-phase flow have the same velocity and can be regarded as a homogeneous mixture
3.8
homogeneous specific volume
specific volume calculated assuming that the gas phase and the liquid phase in the gas-liquid two-phase flow have the same velocity and can be regarded as a homogeneous mixture
3.9
homogeneous viscosity
dynamic viscosity calculated assuming that the gas phase and the liquid phase in the gas-liquid two-phase flow have the same velocity and can be regarded as a homogeneous mixture
3.10
void fraction
ratio of the flow section area of the gas-phase substance to the cross-sectional area of the entire pipeline in a gas-liquid two-phase flow
Foreword II
1 Scope
2 Normative references
3 Terms and definitions
4 Main symbols
5 Basic requirements
6 Single phase flow pipeline
6.1 Preliminary sizing for incompressible fluid pipeline
6.2 Determination of diameter of incompressible fluid pipeline
6.3 Determination of diameter of incompressible fluid pipeline
7 Gas-liquid two-phase flow pipeline
7.1 Requirements for pipeline sizing
7.2 Calculation of pressure drop of non-flash two-phase flow pipeline
7.3 Calculation of pressure drop for flash type two-phase flow pipeline
Annex A (Informative) Velocity range of common media in pipelines
Annex B (Informative) Flow rate and frictional pressure drop of water pipelines
Annex C (Informative) Flow rate and frictional pressure drop of oil pipelines
Annex D (Informative) Mass flow rate and frictional pressure drop of saturated steam pipelines
Annex E (Informative) Flow rate and frictional pressure drop of compressed air pipelines
Explanation of wording in this guideline
SH/T 3035-2018, SH 3035-2018, SHT 3035-2018, SH/T3035-2018, SH/T 3035, SH/T3035, SH3035-2018, SH 3035, SH3035, SHT3035-2018, SHT 3035, SHT3035
Introduction of SH/T 3035-2018
1 Scope
This guideline gives the method for pipeline sizing in petrochemical industry.
This guideline is applicable to pipeline sizing in petrochemical industry, and is not applicable to pipeline sizing of non-newtonian fluid, pneumatic and hydraulic transmission pipelines.
2 Normative references
The following referenced documents are indispensable for the application of this guideline. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 16912 Safety technical regulation for oxygen and relative gases produced with cryogenic method
GB 50031 Norm of acetylene plant design
GB 50177 Design code for hydrogen station
SH/T 3108 Specifications for design of interconnecting process and thermal piping in petrochemical industry
3 Terms and definitions
For the purposes of this guideline, the following terms and definitions apply.
3.1
newtonian fluid
fluid whose ratio of shear stress to shear rate is constant and equal to its dynamic viscosity in the flow process
3.2
non-newtonian fluid
fluid whose ratio of shear stress to shear rate is not constant in the flow process
3.3
compressible fluid
fluid whose density changes with pressure
3.4
incompressible fluid
fluid whose density does not change with pressure, or fluid whose density changes but changes very little
3.5
superficial velocity
velocity calculated assuming that only one phase of the substance flows in the pipe in a gas-liquid two-phase flow
3.6
homogeneous velocity
velocity calculated assuming that the gas phase and the liquid phase in the gas-liquid two-phase flow have the same velocity and can be regarded as a homogeneous mixture
3.7
homogeneous density
density calculated assuming that the gas phase and the liquid phase in the gas-liquid two-phase flow have the same velocity and can be regarded as a homogeneous mixture
3.8
homogeneous specific volume
specific volume calculated assuming that the gas phase and the liquid phase in the gas-liquid two-phase flow have the same velocity and can be regarded as a homogeneous mixture
3.9
homogeneous viscosity
dynamic viscosity calculated assuming that the gas phase and the liquid phase in the gas-liquid two-phase flow have the same velocity and can be regarded as a homogeneous mixture
3.10
void fraction
ratio of the flow section area of the gas-phase substance to the cross-sectional area of the entire pipeline in a gas-liquid two-phase flow
Contents of SH/T 3035-2018
Foreword II
1 Scope
2 Normative references
3 Terms and definitions
4 Main symbols
5 Basic requirements
6 Single phase flow pipeline
6.1 Preliminary sizing for incompressible fluid pipeline
6.2 Determination of diameter of incompressible fluid pipeline
6.3 Determination of diameter of incompressible fluid pipeline
7 Gas-liquid two-phase flow pipeline
7.1 Requirements for pipeline sizing
7.2 Calculation of pressure drop of non-flash two-phase flow pipeline
7.3 Calculation of pressure drop for flash type two-phase flow pipeline
Annex A (Informative) Velocity range of common media in pipelines
Annex B (Informative) Flow rate and frictional pressure drop of water pipelines
Annex C (Informative) Flow rate and frictional pressure drop of oil pipelines
Annex D (Informative) Mass flow rate and frictional pressure drop of saturated steam pipelines
Annex E (Informative) Flow rate and frictional pressure drop of compressed air pipelines
Explanation of wording in this guideline