Lubrication system - Efficiency assessment method
1 Scope
This standard specifies the efficiency assessment method of lubrication system (including main elements such as lubrication pump, cooler and electric heater).
This standard is applicable to the efficiency assessment of mass-produced lubrication systems, and may also serve as a reference for other lubrication devices.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 14039-2002 Hydraulic fluid power - Fluids - Method for coding the level of contamination by solid particles
GB 18613-2012 Minimum allowable values of energy efficiency and energy efficiency grades for small and medium three-phase asynchronous motors
3 General provisions of test conditions
3.1 Test preparation and general test conditions
3.1.1 The test schedule is developed.
3.1.2 Prior to the test, correctness and functional suitability of the installation of instruments and equipment shall be inspected, and the instruments and equipment requiring a periodic appraisal shall be within the specified inspection period.
3.1.3 The valve and control system of the tested system is inspected to eliminate the factors affecting the normal test.
3.1.4 For the power supply, the voltage fluctuation is ±5% and the frequency fluctuation is ±1%.
3.1.5 The kinematic viscosity of the lubricating oil for test is 288~352mm2/s (at the oil temperature of 40℃).
3.1.6 The solid contamination degree of the test oil shall meet the requirements of -/20/17~-/21/18 in Table 1, GB/T 14039-2002.
Foreword i
1 Scope
2 Normative references
3 General provisions of test conditions
3.1 Test preparation and general test conditions
3.2 Test conditions for lubrication pump
3.3 Test conditions for cooler
3.4 Test conditions for electric heater
3.5 Measuring accuracy
4 Efficiency assessment method of lubrication system
4.1 Efficiency assessment value of lubrication system
4.2 Efficiency assessment method of motor
4.3 Efficiency assessment method of lubrication pump
4.4 Efficiency assessment method of cooler
4.5 Efficiency assessment method of electric heater
Annex A (Informative) Schematic diagram for efficiency test of lubrication pump
Annex B (Informative) Installation diagram for efficiency test of lubrication pump
Annex C (Informative) Schematic diagram for efficiency test of cooler
Annex D (Informative) Installation diagram for efficiency test of cooler
Annex E (Informative) Installation diagram for efficiency test of electric heater
Lubrication system - Efficiency assessment method
1 Scope
This standard specifies the efficiency assessment method of lubrication system (including main elements such as lubrication pump, cooler and electric heater).
This standard is applicable to the efficiency assessment of mass-produced lubrication systems, and may also serve as a reference for other lubrication devices.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 14039-2002 Hydraulic fluid power - Fluids - Method for coding the level of contamination by solid particles
GB 18613-2012 Minimum allowable values of energy efficiency and energy efficiency grades for small and medium three-phase asynchronous motors
3 General provisions of test conditions
3.1 Test preparation and general test conditions
3.1.1 The test schedule is developed.
3.1.2 Prior to the test, correctness and functional suitability of the installation of instruments and equipment shall be inspected, and the instruments and equipment requiring a periodic appraisal shall be within the specified inspection period.
3.1.3 The valve and control system of the tested system is inspected to eliminate the factors affecting the normal test.
3.1.4 For the power supply, the voltage fluctuation is ±5% and the frequency fluctuation is ±1%.
3.1.5 The kinematic viscosity of the lubricating oil for test is 288~352mm2/s (at the oil temperature of 40℃).
3.1.6 The solid contamination degree of the test oil shall meet the requirements of -/20/17~-/21/18 in Table 1, GB/T 14039-2002.
Contents of GB/T 38274-2019
Foreword i
1 Scope
2 Normative references
3 General provisions of test conditions
3.1 Test preparation and general test conditions
3.2 Test conditions for lubrication pump
3.3 Test conditions for cooler
3.4 Test conditions for electric heater
3.5 Measuring accuracy
4 Efficiency assessment method of lubrication system
4.1 Efficiency assessment value of lubrication system
4.2 Efficiency assessment method of motor
4.3 Efficiency assessment method of lubrication pump
4.4 Efficiency assessment method of cooler
4.5 Efficiency assessment method of electric heater
Annex A (Informative) Schematic diagram for efficiency test of lubrication pump
Annex B (Informative) Installation diagram for efficiency test of lubrication pump
Annex C (Informative) Schematic diagram for efficiency test of cooler
Annex D (Informative) Installation diagram for efficiency test of cooler
Annex E (Informative) Installation diagram for efficiency test of electric heater
