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GB/T 13469-2021 English PDF (GBT13469-2021)
GB/T 13469-2021 English PDF (GBT13469-2021)
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GB/T 13469-2021: Economical operation for centrifugal, mixed flow and axial flow pump systems
GB/T 13469-2021
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.010
F 01
Replacing GB/T 13469-2008
Economical Operation for Centrifugal, Mixed Flow and
Axial Flow Pump Systems
离心泵, 混流泵与轴流泵系统经济运行
ISSUED ON: MAY 21, 2021
IMPLEMENTED ON: DECEMBER 01, 2021
Issued by: State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Terms and Definitions ... 6
4 Basic Requirements for Economical Operation for Pump Systems ... 6
4.1 Principal requirements ... 6
4.2 Requirements for equipment selection of the pump systems ... 6
4.3 Requirements for installation, commissioning and acceptance of the pump
systems ... 7
4.4 Reasonable use requirements of pump systems ... 8
4.5 Management of economical operation for pump systems ... 10
5 Judgment and Evaluation Method of Economical Operation for Pump
Systems ... 11
5.1 The calculation and judgment program of the economical operation for pump
systems ... 11
5.2 Calculation ... 12
5.3 Judgment and evaluation of equipment ... 13
5.4 Judgment and evaluation of the unit ... 14
5.5 Judgment and evaluation of the system ... 14
6 Test Method for Economical Operation for Pump Systems ... 14
6.1 Test conditions ... 14
6.2 Requirements for measuring instruments ... 14
6.3 Measurement method ... 15
6.4 Test data processing ... 15
7 Energy-Saving Management Measures of Economical Operation for Pump
Systems ... 15
Economical Operation for Centrifugal, Mixed Flow and
Axial Flow Pump Systems
1 Scope
This Standard specifies the basic requirements, judgment and evaluation methods,
test methods and energy-saving management measures of the economical operation
for centrifugal pumps, mixed flow pumps and axial flow pump systems driven by AC
motors.
This Standard is applicable to centrifugal pumps, mixed flow pumps and axial flow
pump systems driven by AC motors in use. The design of reconstruction, expansion
and new centrifugal pump, mixed flow pump and axial flow pump system can be
implemented by reference.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) is applicable to this document.
GB/T 9481 Axial-Flow Pump of Medium-Small Size - Types and Basic Parameters
GB/T 13007 Centrifugal pump - Efficiency
GB/T 13008 Technical Specification for Mixed and Axial Flow Pumps
GB/T 13466 The General Principles of Economic Operation for AC Driven Fan
(Pump Air Compressor) System
GB/T 13468 Measurement and Calculation Methods of Electric Energy Balance
for Pumped Liquid Transportation Systems
GB/T 16666 Monitoring and Testing for Energy Saving of Motor-Pump Liquid
Transport System
GB 17167 General Principle for Equipping and Managing of the Measuring
Instrument of Energy in Organization of Energy Using
4.2.4 The selection of the pump shall meet the following requirements:
a) Satisfy the use head and flow of the system;
b) The selection of the pump shall comply with the provisions of GB/T 9481, GB/T
13007, GB/T 13008 and other relevant standards;
c) The design operating point shall be in the economic working area specified by
the pump manufacturer.
4.2.5 Under a variety of working conditions and production process conditions, the
matching pump shall be selected according to the system load characteristics. The
selection of multiple pumps for combined operation shall meet the requirements of
series and parallel technical conditions.
4.2.6 When multiple pumps are used in combined operation, on the basis of satisfying
process, safe and reliable operation, high-efficiency pumps shall be used to bear the
basic load, so as to minimize the power consumption of the unit liquid.
4.2.7 When multiple units are operated in parallel, pumps with equal head
characteristics shall be used. When operating in series, pumps with equal flow
characteristics shall be used. When speed control devices are used for control and
adjustment, the pump series/parallel operation rules shall be satisfied; and the series
and parallel operation mode in the high-efficiency energy-saving zone of the variable
frequency pumps should be used.
4.2.8 According to the requirements of the production process, reasonably determine
the pipe material and pipe diameter of the pipe network system.
4.2.9 The pipe network configuration plan and transportation distance shall be
reasonably determined under the conditions of optimizing the production process.
4.3 Requirements for installation, commissioning and acceptance of the pump
systems
4.3.1 The installation shall be carried out by a dedicated installation technician in
accordance with the installation provisions of the manufacturer.
4.3.2 The determination of the installation site and location shall fully consider the
convenience of operation and management; and reserve necessary maintenance
space.
4.3.3 After installation of the pump system, online debugging shall be carried out to
check whether the pump is out of the high-efficiency zone where the pump is allowed
to operate; and perform the test in accordance with Clause 6.
the inclination shall be no less than 0.5%;
c) The suction pipeline layout and flow rate of large centrifugal pumps, axial flow
pumps and mixed flow pumps shall be selected so that the suction medium does
not produce vortex, cavitation, etc.;
d) The bottom valve should not be used in the suction pipeline;
e) In order to ensure the suction performance of the pump, the medium flow rate of
the suction pipe for conveying clean water at room temperature shall be less
than 2m/s.
4.4.2.10 The discharge pipeline shall meet the following requirements:
a) For the connection between the branch pipe and the main pipe, an oblique
connection should be used instead of a straight connection;
b) No additional resistance valve or micro resistance valve should be used;
c) The discharge pipeline shall adopt economical flow rate, and the flow rate of
clean water at room temperature shall be 2m/s~3m/s.
4.4.3 Economical operation of the system
4.4.3.1 Applicable control and regulation systems shall be adopted according to the
user's flow and head requirements.
4.4.3.2 For long running time, large load changes and discontinuous operation
conditions, a regulating device system including a variable frequency speed regulating
device should be used. The application technical conditions of the variable frequency
speed regulating device shall comply with the provisions of GB/T 21056.
4.4.3.3 When the flow rate variation is less than 20%, or the annual operating time is
less than 4000h, the following flow adjustment methods should be adopted, including:
a) The throttling method can be used for small centrifugal pumps;
b) For mixed flow pumps and axial flow pumps, the flow rate and head can be
adjusted through changing the installation angle of the blades or adjusting the
inlet guide blades;
c) When the change range of flow rate is less than 10%, the variable flow constant
pressure method shall be adopted;
d) Voltage reduction and power saving technology can be used when the motor is
lightly loaded.
4.4.3.4 The equipment and pipe network that transport high (low) tempe...
Get QUOTATION in 1-minute: Click GB/T 13469-2021
Historical versions: GB/T 13469-2021
Preview True-PDF (Reload/Scroll if blank)
GB/T 13469-2021: Economical operation for centrifugal, mixed flow and axial flow pump systems
GB/T 13469-2021
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.010
F 01
Replacing GB/T 13469-2008
Economical Operation for Centrifugal, Mixed Flow and
Axial Flow Pump Systems
离心泵, 混流泵与轴流泵系统经济运行
ISSUED ON: MAY 21, 2021
IMPLEMENTED ON: DECEMBER 01, 2021
Issued by: State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Terms and Definitions ... 6
4 Basic Requirements for Economical Operation for Pump Systems ... 6
4.1 Principal requirements ... 6
4.2 Requirements for equipment selection of the pump systems ... 6
4.3 Requirements for installation, commissioning and acceptance of the pump
systems ... 7
4.4 Reasonable use requirements of pump systems ... 8
4.5 Management of economical operation for pump systems ... 10
5 Judgment and Evaluation Method of Economical Operation for Pump
Systems ... 11
5.1 The calculation and judgment program of the economical operation for pump
systems ... 11
5.2 Calculation ... 12
5.3 Judgment and evaluation of equipment ... 13
5.4 Judgment and evaluation of the unit ... 14
5.5 Judgment and evaluation of the system ... 14
6 Test Method for Economical Operation for Pump Systems ... 14
6.1 Test conditions ... 14
6.2 Requirements for measuring instruments ... 14
6.3 Measurement method ... 15
6.4 Test data processing ... 15
7 Energy-Saving Management Measures of Economical Operation for Pump
Systems ... 15
Economical Operation for Centrifugal, Mixed Flow and
Axial Flow Pump Systems
1 Scope
This Standard specifies the basic requirements, judgment and evaluation methods,
test methods and energy-saving management measures of the economical operation
for centrifugal pumps, mixed flow pumps and axial flow pump systems driven by AC
motors.
This Standard is applicable to centrifugal pumps, mixed flow pumps and axial flow
pump systems driven by AC motors in use. The design of reconstruction, expansion
and new centrifugal pump, mixed flow pump and axial flow pump system can be
implemented by reference.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) is applicable to this document.
GB/T 9481 Axial-Flow Pump of Medium-Small Size - Types and Basic Parameters
GB/T 13007 Centrifugal pump - Efficiency
GB/T 13008 Technical Specification for Mixed and Axial Flow Pumps
GB/T 13466 The General Principles of Economic Operation for AC Driven Fan
(Pump Air Compressor) System
GB/T 13468 Measurement and Calculation Methods of Electric Energy Balance
for Pumped Liquid Transportation Systems
GB/T 16666 Monitoring and Testing for Energy Saving of Motor-Pump Liquid
Transport System
GB 17167 General Principle for Equipping and Managing of the Measuring
Instrument of Energy in Organization of Energy Using
4.2.4 The selection of the pump shall meet the following requirements:
a) Satisfy the use head and flow of the system;
b) The selection of the pump shall comply with the provisions of GB/T 9481, GB/T
13007, GB/T 13008 and other relevant standards;
c) The design operating point shall be in the economic working area specified by
the pump manufacturer.
4.2.5 Under a variety of working conditions and production process conditions, the
matching pump shall be selected according to the system load characteristics. The
selection of multiple pumps for combined operation shall meet the requirements of
series and parallel technical conditions.
4.2.6 When multiple pumps are used in combined operation, on the basis of satisfying
process, safe and reliable operation, high-efficiency pumps shall be used to bear the
basic load, so as to minimize the power consumption of the unit liquid.
4.2.7 When multiple units are operated in parallel, pumps with equal head
characteristics shall be used. When operating in series, pumps with equal flow
characteristics shall be used. When speed control devices are used for control and
adjustment, the pump series/parallel operation rules shall be satisfied; and the series
and parallel operation mode in the high-efficiency energy-saving zone of the variable
frequency pumps should be used.
4.2.8 According to the requirements of the production process, reasonably determine
the pipe material and pipe diameter of the pipe network system.
4.2.9 The pipe network configuration plan and transportation distance shall be
reasonably determined under the conditions of optimizing the production process.
4.3 Requirements for installation, commissioning and acceptance of the pump
systems
4.3.1 The installation shall be carried out by a dedicated installation technician in
accordance with the installation provisions of the manufacturer.
4.3.2 The determination of the installation site and location shall fully consider the
convenience of operation and management; and reserve necessary maintenance
space.
4.3.3 After installation of the pump system, online debugging shall be carried out to
check whether the pump is out of the high-efficiency zone where the pump is allowed
to operate; and perform the test in accordance with Clause 6.
the inclination shall be no less than 0.5%;
c) The suction pipeline layout and flow rate of large centrifugal pumps, axial flow
pumps and mixed flow pumps shall be selected so that the suction medium does
not produce vortex, cavitation, etc.;
d) The bottom valve should not be used in the suction pipeline;
e) In order to ensure the suction performance of the pump, the medium flow rate of
the suction pipe for conveying clean water at room temperature shall be less
than 2m/s.
4.4.2.10 The discharge pipeline shall meet the following requirements:
a) For the connection between the branch pipe and the main pipe, an oblique
connection should be used instead of a straight connection;
b) No additional resistance valve or micro resistance valve should be used;
c) The discharge pipeline shall adopt economical flow rate, and the flow rate of
clean water at room temperature shall be 2m/s~3m/s.
4.4.3 Economical operation of the system
4.4.3.1 Applicable control and regulation systems shall be adopted according to the
user's flow and head requirements.
4.4.3.2 For long running time, large load changes and discontinuous operation
conditions, a regulating device system including a variable frequency speed regulating
device should be used. The application technical conditions of the variable frequency
speed regulating device shall comply with the provisions of GB/T 21056.
4.4.3.3 When the flow rate variation is less than 20%, or the annual operating time is
less than 4000h, the following flow adjustment methods should be adopted, including:
a) The throttling method can be used for small centrifugal pumps;
b) For mixed flow pumps and axial flow pumps, the flow rate and head can be
adjusted through changing the installation angle of the blades or adjusting the
inlet guide blades;
c) When the change range of flow rate is less than 10%, the variable flow constant
pressure method shall be adopted;
d) Voltage reduction and power saving technology can be used when the motor is
lightly loaded.
4.4.3.4 The equipment and pipe network that transport high (low) tempe...
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