JB/T 8099-1999 This standard is a revision and merger of three standards: JB/T 8099.1-95 "Basic parameters of volumetric heavy oil pumps for oil fields", ZB J71 020-90 "Technical conditions for rotor-type heavy oil pumps for oil fields" and ZB J71 021-90 "Test methods for rotor-type heavy oil pumps for oil fields". During the revision, the scope of application was increased; the indicators in the technical requirements were adjusted; and the test oil was modified in the test methods. This standard specifies the basic parameters, technical requirements, test methods, inspection rules, marking, packaging and storage of rotor-type heavy oil pumps for oil fields. This standard is applicable to rotor-type pumps that convey media with a temperature of less than or equal to 150°C and a viscosity of 0.1~10Pa·s. Its rated flow range is less than or equal to 400m3/h, and the rated discharge pressure range is less than or equal to 5.0MPa. JB/T 8099.1-95 was first published in 1989 as GB 11474-89, and was adjusted to JB/T 8099.1-95 on April 14, 1996; ZB J71 020-90 and ZB J71 021-90 were first published on July 1, 2006. JB/T 8099-1999 Rotor-type heavy oil pump for oilfield JB/T8099-1999 standard download decompression password: www.bzxz.net

rcs23.080
Machinery Industry Standard of the People's Republic of China
FBT8199-1999
Rotary viscous oil pumps used in oil Issued on July 12, 1999
National Bureau of Machinery Industry
Implementation on January 1, 2000
JB/T8099-1999
3 References
Basic parameters
Technical requirements
Test methods
Test specifications
8 Marking, packaging and storage
Appendix A (suggestive appendix)
Appendix B (suggestive appendix)
Appendix C (suggestive appendix)
Test device for rotary oil pump for field use and test equipment for rotary oil pump for field use
JB/T8099-1999
This reference is a basic summary of JB/T8099.:95 positive displacement oil pump for field use. 7.R[71C20-90 Technical Conditions for Rotary Oil Pumps for Lubricating Oil 3. ZR17121..-0 Test Methods for Rotary Oil Pumps for Lubricating Oil This standard is revised (merged) and the name of the standard is changed to (Rotary Oil Pumps for Lubricating Oil 3.0). The main technical contents of this standard are modified as follows: the applicable flow rate is 60m/h and the lifting rate is 400m/h; the technical requirement "lubricating oil temperature rise does not exceed 40" is changed to "lubricating oil flushing temperature does not exceed ?S"; the technical requirement "flow error does not exceed -5%-18% of the balance" is changed to "flow rate becomes the pump default flow rate" 95%10%\;
In the technical requirement, "When the pump is running at a certain frequency, the noise level is less than [A]" is the "pressure level and dynamic level are listed as values\:
- Change "the medium used in the test is generally 50℃! 50cal oil" in the test method to "the medium used in the test is normal N32 low-pressure mechanical oil".
This standard replaces B/8099.195, ZBJ7)02090, 7BJ71021-90, and the appendix A, appendix B and appendix of this standard are all appendices based on the specifications. This standard was proposed and issued by the standardization technical committee of the enterprise. The drafting units of the technical standard are: Hefei General Machinery Research Institute, Lidong City Pump Factory. The main drafters of the technical standard are: Ye Xiaodian, Zhang Chenpian, Zhang Mingliang. Scope
Machinery Industry Standard of the People's Republic of China
Rotarsvigcous oll pumpswged n oil fleldJB/T 80991999
Generation 13 8099.1..-95
ZDJT162090
ZB J7I (21.. 90)
This standard specifies the basic performance, technical requirements, test methods, verification plan, marking, installation and storage of heavy oil pumps for oil fields (hereinafter referred to as the system).
This standard applies to rotary pumps with a conveying temperature of 150℃ and a viscosity of 0.1-10Pus. The rated range is ≤100nh: the rated discharge range is 5.0MPa3 Reference Standards
The following standards contain the following provisions. The provisions of this standard are those cited in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using the standards should explore the possibility of using the latest versions of the following standards. GB.T 1029..-1993
GRT1032-1985||GRT1311—1989
GB.T2555—1995
GD/T2536--1995
GB 3836.1-[983
GB/1 7784—1 987
3/ 7785—1987
GB/T9069-1968
GB/T11473—1989
GB/T13301991
GB/T 33841992
JB/T 90901999
3 Definitions
Test methods for three-phase synchronous motors
Test methods for three-phase asynchronous motors
Test methods for DC motors
General purpose flange connection dimensions
General purpose flanges, screens and seals, shapes and dimensionsGeneral requirements for explosion-proof electrical equipment for explosive atmospheresTest methods for motor pumps
Classification and terminology of motor pumps
Determination of noise power level of motor pumpsEngineering methodModel designation method for motor pumps
·General technical conditions for the manufacture of electromechanical products
Contents and requirements of componentsHydraulic and leakage tests
In addition to the terms specified in G-75, this standard also uses the following definitions. Rotor type
The medium is transported by the rotation of the rotor. 4 Basic parameters
4. The basic parameters of the pump shall be in accordance with Table A1 in Appendix A "Appendix of Indications", 4.2 The model of the pump shall comply with the provisions of GB/T11473. Approved by the State Bureau of Machinery Industry on July 12, 1999 and implemented on January 1, 2000
5 Technical requirements
JBTB099-1999
5.1 The pump shall comply with the requirements of the standards and be prepared according to the drawings and technical documents approved by the prescribed procedures. 5.2 If the design has special requirements for the pump, the contract may require 5.3 The pump should be able to operate safely at the rated speed under the reverse working condition (continuous operation means that the pump runs continuously for 8-24 hours a day under the rated working condition). 4 The pump should be able to operate safely at the safe start and rated speed. Other measures to ensure the safe operation of the system can also be taken under the specified overload value.
9. The system should meet the following conditions during operation:) The mechanical leakage should not exceed the specified value in Table 1.
6) The leakage of the stuffing box should not exceed 0.0% of the rated flow. When the rated flow is less than 10m3, the total leakage should not exceed 11h:) There should be no leakage at any time:
The temperature of the lubricating oil pool should not exceed 75℃:
e) When the pump is running under rated conditions, the prime mover should not be overloaded: The system should be equipped with a safety lubrication or other overload protection device. The safety start-up force can be adjusted to 1.03--125 times the rated discharge pressure. The maximum start-up force and discharge pressure shall not be greater than the pump pressure test limit 5.6. At the rated discharge pressure, the flow rate should be 95%~110% of the rated flow rate of the pump. 5. The noise level of the pump during operation shall comply with the provisions of Table 2. Table 2 Rated discharge pressure, rated flow rate, kw 537--75 75-150 150-200 2-1.0-2.0 tt output value (city level) Note: For the noise level not specified in the table, the noise level can be implemented according to 5.2: The noise level specified in the table does not include the noise level of the prime mover. 5. * The noise level of the inlet and outlet of the system 1. Flanges shall comply with the provisions of GBT2555 and GB2556. 5.9. During machine reduction or material leakage, the material box shall be concentrated for easy cleaning. 5.10. All pressure-bearing components shall be subjected to pressure test in accordance with the provisions of 9090. 5.11. Bolts and screws of the cover shall be torqued to the specified torque. 2
5.12. External movement shall be protected by a single piece. S. The system shall be easy to fix on the upper side for filling and maintenance. JB/8099—1999
5.1 4 The depth protection type, type and temperature of the motor and electrical equipment shall comply with the provisions of Appendix A of 0B3836.119834. 5.15 The replacement time of the ten essential parts and consumable parts of the pump shall be less than the provisions of Table 3, otherwise it can be stipulated in the contract. 3
Set pressure MP:
Name of consumable parts
Special sample
Energy-saving plate
5.16 The system supply of food should include:||tt ||a) Unit:
b) Prime mover 1 unit:
) Spare parts with no less than 12 units;
Special tools;
Random documents
Specific specifications and quantity if increased according to the contract provisions 213-29
Replacement time
5.17 Under the conditions of complying with the provisions of the product manual, the manufacturer shall guarantee the product for 6 units within 12 months from the date of shipment. During the warranty period, if the product is damaged or cannot work properly due to poor manufacturing quality, the manufacturer shall be responsible for free repair or replacement of the parts (not including the scalable parts)
6 Test method
6. 1 Test system
6.1.1 Principle of the test system See Appendix B (Reminder Appendix) 6.1.2 The test medium is N32 machine oil at room temperature. When the user has clear requirements for the test quality, it shall be carried out in accordance with the contract. 1.3 There shall be no safety valve or other over-stuck protection device on the discharge pipeline of the pump. The safety valve or other over-stuck protection device shall be opened under the pressure setting specified in 3.S[!.
6.1.4 The allowable pressure of the discharge pipeline shall be compatible with the maximum discharge pressure of the pump under test. 6.1.5 There shall be no leakage at each connection of the suction pipeline to prevent outside air from entering the pipeline. 6.2 Test requirements
6.2. The test shall be carried out on a test device that meets the requirements of 6.1 or on-site flow barriers. 6.2.2 The test shall be carried out under the recorded rated discharge pressure, rated speed, specified test medium and temperature range. The test condition measurement range or allowable shrinkage shall comply with the requirements of Table 4. 1 The discharge pressure P of the test item shall not be less than the rated value of the net positive shock absorber (NPSH) or the rated value of NPSHr (NPSHr) + 5% of the rated value. 2.3 If the test conditions deviate from the specified working conditions, the conversion shall be based on 6.5.1.2 and 6.5.43. The influence of the difference between the test medium and the working medium on the test results shall be corrected according to 6.5.1.3 and 6.5.4.4. For all tests that require the measurement of parameters, the instruments of the measured parameters and the allowable fluctuation range of the indicated values ​​shall comply with the provisions of Table 6: 6.2.4
Discharge pressure
Suction product
Allowable speed of moving belt
Calibration test data
Individual quality
Pump performance
Health milk
Permissible fluctuation range
6.2.5 The system error of the measuring instrument and the table shall ensure that the measurement error of the measured parameters is not greater than the provisions of Table 6. All measuring instruments shall be within the effective service life and have the appraisal certificate issued by the metrology department and the relevant departments. Table 6
Eastern Airlines per capita rate
Type and pumping in the modified inspection
Shanguang Station Inspection
62.6 During the test, confirm that the pump operation has reached a stable operating condition and all instrument readings should be read and recorded at the same time. The number of measurements for each integer shall not be less than the number of times, and the arithmetic mean shall be eliminated as the measured value. 6.7.1 The test data and calculation results shall be recorded in the test record sheet, sorted and plotted. 6.2.8 The error and analysis method of the test system shall be Appendix R of GB.T7784-19B7, 6. 2.9
The total recognition error shall comply with the provisions of Table 7.
Pro-trapping power
6.3 Test items and requirements
IB.T 8099-~1999
General equipment specifications
Type and oil inspection
6.3.1.1 The test run is to check the assembly quality and run-in. 3.1.2 The test run includes no-load test and load test: a) The no-load test is carried out with the inlet and outlet pipes intact and the conveyor is stirred. b) The load test should be carried out at a constant speed, and the bed force should be gradually increased from the entrainment to the rated full force. During the trial run, the pump shall be operated for 2 hours under rated differential oil flow, and the vibration, temperature rise and leakage of the pump shall be recorded: 5.3.1.3 Noise, vibration, lubrication, temperature rise and leakage detected during the trial run shall be recorded. 6.3.2 Continuous operation test
5.3.2.1 The continuous operation test shall be carried out after the trial run, with the pump being operated reversely for a cumulative 500 hours under rated conditions. During the test, intermediate inspections are allowed to check the running conditions. In case any major parts are damaged and need to be replaced, the completed tests shall be invalid. 6.3.2.2 During the test, record the flow rate, pressure, system speed, power, lubricating oil temperature and mass temperature at regular intervals (4-81°C). In point 3.2.3, record the survival of components, number of repairs and shutdown time. After the test, dismantle and inspect the system and record the condition of components and the environment.
6.3.3 Performance test
6.3.3.1 The performance test should determine the relationship between flow rate, power, pump efficiency and positive and negative differential, and draw the product performance curve. 6.3.3.2 The performance test should be carried out at the rated suction pressure. If the rated suction pressure is too low, it cannot be guaranteed that there will be no steam contact in the deep well, or the rated pressure is exceeded! When the vapor pressure of the test body is greater than the vapor pressure of the test body, or the test device cannot meet the requirements of the rated suction pressure, it is allowed to increase the suction pressure to conduct the performance test, but the discharge pressure should be changed accordingly to ensure that the pressure difference is the rated pressure. The discharge pressure should be started from the minimum value (the discharge pressure necessary to overcome the resistance of the test system when the discharge pipe door is fully opened), and then the pressure should be increased by 25%, 50%, 75%, and 100%. At each discharge pressure, the pressure should be measured and the value of the medium temperature, rotation speed, full load, power, and discharge pressure should be recorded at the same time.
West, 3,4 Cavitation performance test
6, 34. [The actual cavitation performance test should be carried out under the relationship between the rated flow rate and the net positive suction head (NPSH), and the required net positive suction head (NPSH) of the system should be found.
6.3.4.2 The steam performance test should be carried out under the rated discharge pressure and the maximum speed. NPSH starts from the maximum value reported (the maximum value that can be set when the suction pipe valve is fully open); it is measured according to 6.3.2 to various values. Then gradually reduce NPSH until the flow rate is 5%-10% lower than the normal flow rate. The test points should be at least 6 points. When the pump is close to the steam source, the interval between the test points should be reduced accordingly. JB/T8099—1999
6.3.4.3HPSHr is determined according to one of the following two parameters: a) When other conditions remain unchanged, the flow rate of the case decreases by 3%; 6) When the flow rate of the case decreases, the discharge pressure of the pump decreases by 4% (there is a throttling element on the discharge side of the ticket) 6.3.5 Rated operating point performance inspection
The rated operating point performance inspection should check whether the flow rate reaches the rated value under NPSHT, rated discharge pressure and rated speed. 6.3.6 Safety test
6.3.6.! The whole system shall be subjected to pressure test and adjustment, and sealed after passing the test. 6.3.6.2 Gradually close the discharge pipeline valve to increase the discharge pressure. The safety valve shall act sensitively under the opening pressure specified in 5.5. The test shall be conducted for no less than 3 times. The safety valve can be debugged separately for one-time safety valve. 6.3.7 Noise measurement and display
The noise measurement of the pump shall be in accordance with the provisions of H/9069. 6.4 Measurement parameters and instruments
6.4.1 Flow plate
6.4.1.1 The flow plate generally adopts the volumetric method, mass method or comb meter method. 6.4.1.2 When the flow rate is measured by the volumetric method (i.e. measuring the time required to fill a certain volume), the container shall have a scale. The relative limit error of the calibration of the instrument is greater than 0.5%, and the error of measuring liquid is less than 2mm6.4.1.3 When measuring the drip volume by mass method (i.e. measuring the mass of liquid within a certain time interval), the sensor of the balance group should be less than 0.5% of the mass of the measured. It is generally used to measure liquids that are difficult to expel gas. 6.4.1.4 When measuring the delivery volume by the flow meter method, it should be ensured that the flow entering the throttling device is a stable flow. The volumetric flow meter suitable for viscous fluids is used. The flow meter accuracy: type and random inspection is level 1; the exit inspection is level 1.5, and.4.1.5 When measuring the flow rate, the timing device or counting device is connected with the flow meter and the liquid level measuring device, and the switching device should be electrically or mechanically interlocked to ensure synchronization between the two. 6.4.1.6 When measuring flow rate by volumetric method, mass method and digital flowmeter, the time interval shall be at least 20s. 6.4.2 Pressure and vacuum degree
6.4.2.1 Pressure and vacuum degree shall be measured by elastic pressure gauge, vacuum gauge, pressure sensor or other types of pressure gauge. 6.4.2.2 The pressure measuring instrument shall be of grade 0.5 when tested for type and pump type; and of grade 1.5 when tested for output. 6.4.2.3 The position of the measuring valve shall be set on the discharge and suction sides of the pump, and connected to the straight pipe with 4 times of their respective diameters. (If the system is not discharge or suction, the flange surface shall be 2 times the diameter of the cylinder.) The distance between the suction pipe and the suction pipe shall be greater than 6 times the parallel (or suction) diameter, and shall not be less than 300mm. In the case of air chamber, it is allowed to measure the pressure on the air chamber. 6.4.2.4 The pressure hole shall be manufactured according to the requirements of Figure 1. The hole axis shall be perpendicular to the inner wall of the pipe. The edge shall not have burrs. The periphery shall be smooth and flush. The intersection with the inner wall of the pipe shall be at a correct angle. The diameter of the pressure hole is 2-6m or equal to 1/10 of the diameter, whichever is smaller. The piercing depth shall not be less than 2.5 times the diameter of the hole. 6.4.2.5 If a straight pipe of 4 times the diameter cannot be installed due to the size of the pipe or the limitation of the test equipment, or if the same testing method as on-site is used, the pressure shall also be measured at the outlet flange or its vicinity according to the contract: 6.4.2,6 When the pressure is higher than the atmospheric pressure, the air in the connecting pipe between the meter and the measuring hole should be exhausted, filled with the test medium, and the meter indication should be read. When the pressure is lower than the atmospheric pressure, the connecting pipe between the meter and the measuring hole should be filled with air, the test medium should be exhausted, and the meter indication should be read.
JB/T8099-1999
1: The minimum value between the two
1C diameter (take the center value of the two points)
6.4.2.7 In order to reduce the pulsation of pressure (or point air) during measurement, it is allowed to install a pulsation damping device in front of the meter. The simulated range of the meter pointer shall comply with the provisions of Table 5, and the indication value at the 23rd position of the pointer swing shall be taken as the measured value. 6.4.2.8 The range of the pressure gauge should be selected so that the measured discharge pressure is 1/3~236 of the full scale. 4.3 Micro-degrees
(, 4.3.1 The temperature of the liquid and the temperature of the pump parts shall be measured by glass water temperature gauge, thermoelectric, inductive thermometer: semiconductor thermometer and other types of temperature measuring electrodes, the error limit of which shall not exceed 16.4.3.2 The temperature measuring point shall be set at the filter side with small temperature frequency fluctuation section, small heat transfer and heat dissipation. 6.4.3.3 The medium shall be measured at the pump discharge. When measuring the temperature of the medium in the pipeline (or pipe), the temperature sensing part is completely placed in the medium. 6.4.3.4 When measuring the medium temperature of the pipeline and the conduit, the temperature sensor shall be installed in the reverse flow or at a 45° angle to the reverse flow. 6.4.4 Rotation speed
6.4.! The speed shall be measured by a tachometer with a stopwatch, a photoelectric tachometer, a digital tachometer or other instruments. The accuracy level of the measuring instrument shall be not less than 0.2% for type inspection and not less than 0.5% for factory inspection. 6,4.4 .2 The speed can also be measured by a mathematical instrument with a direct display. 6.4.4.3 When the time intervals required for the flow and rotation are different, multiple measurements should be made for the two relatively close values ​​of the measurement time (the arithmetic half-mean value in the same time interval as the parameter is taken as the measured value). 6.4.5 Current rate
And .4.5.! The input power rate of the pump can be obtained by directly measuring the input torque and speed of the cumulative shaft with a torque-tachometer. The accuracy level of the instrument should be Not less than 1%, the selection of the range should make the measured rated torque of the bottle be 1~23 of the full scale. 6.4.5.2 The input power of the pump can also be calculated by measuring the input power of the electric pillow with a known efficiency curve. 6.4.5.3 The input power of the motor is measured at the motor input end. The two-watt meter method or three-watt meter method is used for AC motors, and the voltage-current meter method is used for DC automatic machines. The instrument accuracy is specified in the table. During the test storage, the indication value of the instrument should be within the full range! [3 The above is an exception when measuring three-phase power with a wattmeter, but the current and voltage indicated by it shall not be less than the rated current and voltage of the wattmeter. JB/T8099-1999 6.4.5.4 When calculating the motor drag, the relevant provisions of GB/T1311, GBT1029 and GBT1032 shall be met. 6.5 Data processing 6.5.1 Flow rate 6.5.1.1 The flow rate at the test speed shall be calculated using formula (1) and formula (2): Volume method: tt||职达：
Where: 0
Discard the flow rate at the test speed, mh;
At the time interval! The liquid in the container is taken, L"The time interval corresponding to the number of revolutions of the measuring disk, m; Use
At the time interval, the liquid in the container is screened, k, the density of the conveying medium at the test temperature, fly. When the test transfer is different from the rated transfer, the formula (3) is converted to 6.5,1,2
Wu Zhong: 2—
Convert to the flow rate at the rated speed, m:
Rely on the rated speed, 1/min;
n-—Test speed, r/min.
6.5.1.3 If the density of the test medium is different from that of the working medium, the flow rate shall be converted according to formula (4): g-2, + (x: -2)
Formula: q-
Corrected flow rate, m
2 Flow rate under rated refining of the test medium, m; m-Viscosity of the working medium, Pa·s:
|| Viscosity of the test medium, Pu·s:
2 The actual test flow rate when discharging the residual water, m%. 6. 5. 2 The pressure difference refers to the difference between the discharge pressure and the suction pressure, calculated according to formula (5): ppeG
I: p
-pressure difference, MPa:
Discharge pressure, Mra:
Suction pressure, MPa:
Pressure gauge reading at the discharge end, MPar
6.5.3 Speed
Measure the speed of the prime mover F and calculate the speed according to formula (6): 8
(5)
Formula Where: n
light ball, min;
prime mover speed, rmn:
-speed ratio
6.5.4Power
JB/T8099-1999
6.5.4Use the torque moment method to calculate the system input power, see formula (?: 30000
Where: P.—the input power of the result, w; light i, X·m
6.5.4.2The prime mover efficiency is calculated according to formula (8): P.=Pm fn.
: P.——prime mover input power, kw; Tiot
prime mover efficiency.
6. 5,4.3 When the test speed is different from the rated speed, it should be calculated according to formula (9): P = P
Where: P.——input power at rated speed, kW; Predetermined speed: rimin~
6.5.4.4 If the test medium is different from the working medium, the power should be converted according to formula (10); ft
Where: The pump power of the product is above, kw
P is the residual input power measured during the non-full-time test, W. 6.5.5 Pump efficiency
The efficiency of the pump refers to the ratio of the pump's simple discharge rate to the wheel power, calculated according to formula (I); Pax100%
Wherein: - system efficiency:
P.-system output power, kw,
The output power of the pump can be calculated according to (12): 18
6.5.6 Volume coefficient
The volume coefficient refers to the ratio of the system flow rate to the theoretical flow rate, calculated according to formula (13): K,
Wherein: K——volume coefficient:
2In the test at a faster theoretical flow rate,.3. The input power of the motor is measured at the input end of the motor. For AC motors, use the two-wattmeter method or the three-wattmeter method, and for DC automatic machines, use the voltage-current meter method. The meter accuracy is as specified in the table. During the test, the meter indication value should be above 30% of the full scale. The three-phase power measurement of the 15-wattmeter can be an exception, but the current and voltage values ​​indicated by it shall not be lower than the rated current and voltage of the wattmeter. % table of values
connection table
mutual inductance
specification
JB/T8099-1999
6.4.5.4 Calculation of motor drag time, which meets the relevant provisions of GB/T1311, GBT1029 and GBT1032 6.5 Data processing
6.5.1 Flow rate
6.5.1.1 The flow rate at the test speed shall be calculated according to formula (1) and formula (2): Volumetric method:
Full-length:
Where: 0
Discard the flow rate at the test speed, mh;
At the time interval! The liquid injected into the container is taken, L, the time interval corresponding to the measurement mother or the time interval corresponding to the number of revolutions of the measuring disk, m; the liquid injected into the container is screened at the intermediate interval, the mass of the liquid injected into the container, k, the density of the conveying medium at the test temperature, k. When the test transfer rate is different from the rated transfer rate, the flow rate at the rated speed is converted according to formula (3) 6.5, 1, 2
Wuzhong: 2—
converted to the flow rate at the rated speed, m:
depends on the rated speed, 1/min;
n-—test speed, r/min.
6.5.1.3 When the test medium density is different from the working medium density, the flow rate should be converted according to formula (4): g-2, + (x: -2)
Formula: q-
corrected flow rate, m
2Flow rate under rated rotation of the test medium, m; m-viscosity of the working medium, Pa·s:
viscosity of the test medium, Pu·s:
2Test measured flow rate when discharging the residual water, m%. 6. 5. 2 The pressure difference refers to the difference between the discharge pressure and the suction pressure, calculated according to formula (5): ppeG
I: p
-pressure difference, MPa:
Discharge pressure, Mra:
Suction pressure, MPa:
Pressure gauge reading at the discharge end, MParWww.bzxZ.net
6.5.3 Speed
Measure the speed of the prime mover F and calculate the speed according to formula (6): 8
(5)
Formula Where: n
light ball, min;
prime mover speed, rmn:
-speed ratio
6.5.4Power
JB/T8099-1999
6.5.4Use the torque moment method to calculate the system input power, see formula (?: 30000
Where: P.—the input power of the result, w; light i, X·m
6.5.4.2The prime mover efficiency is calculated according to formula (8): P.=Pm fn.
: P.——prime mover input power, kw; Tiot
prime mover efficiency.
6. 5,4.3 When the test speed is different from the rated speed, it should be calculated according to formula (9): P = P
Where: P.——input power at rated speed, kW; Predetermined speed: rimin~
6.5.4.4 If the test medium is different from the working medium, the power should be converted according to formula (10); ft
Where: The pump power of the product is above, kw
P is the residual input power measured during the non-full-time test, W. 6.5.5 Pump efficiency
The efficiency of the pump refers to the ratio of the pump's simple discharge rate to the wheel power, calculated according to formula (I); Pax100%
Wherein: - system efficiency:
P.-system output power, kw,
The output power of the pump can be calculated according to (12): 18
6.5.6 Volume coefficient
The volume coefficient refers to the ratio of the system flow rate to the theoretical flow rate, calculated according to formula (13): K,
Wherein: K——volume coefficient:
2In the test at a faster theoretical flow rate,.3. The input power of the motor is measured at the input end of the motor. For AC motors, use the two-wattmeter method or the three-wattmeter method, and for DC automatic machines, use the voltage-current meter method. The meter accuracy is as specified in the table. During the test, the meter indication value should be above 30% of the full scale. The three-phase power measurement of the 15-wattmeter can be an exception, but the current and voltage values ​​indicated by it shall not be lower than the rated current and voltage of the wattmeter. % table of values
Appendix table
Watt holding clothes
Mutual inductance
Specificity
JB/T8099-1999
6.4.5.4 Calculation of motor drag time, cross the relevant provisions of GB/T1311, GBT1029 and GBT1032 6.5 Data processing
6.5.1 Flow rate
6.5.1.1 The flow rate at the test speed shall be calculated according to formula (1) and formula (2): Volumetric method:
Full-length:
Where: 0
Discard the flow rate at the test speed, mh;
At the time interval! The liquid injected into the container is taken, L, the time interval corresponding to the measurement mother or the time interval corresponding to the number of revolutions of the measuring disk, m; the liquid injected into the container is screened at the intermediate interval, the mass of the liquid injected into the container, k, the density of the conveying medium at the test temperature, k. When the test transfer rate is different from the rated transfer rate, the flow rate at the rated speed is converted according to formula (3) 6.5, 1, 2
Wuzhong: 2—
converted to the flow rate at the rated speed, m:
depends on the rated speed, 1/min;
n-—test speed, r/min.
6.5.1.3 When the test medium density is different from the working medium density, the flow rate should be converted according to formula (4): g-2, + (x: -2)
Formula: q-
corrected flow rate, m
2Flow rate under rated rotation of the test medium, m; m-viscosity of the working medium, Pa·s:
viscosity of the test medium, Pu·s:
2Test measured flow rate when discharging the residual water, m%. 6. 5. 2 The pressure difference refers to the difference between the discharge pressure and the suction pressure, calculated according to formula (5): ppeG
I: p
-pressure difference, MPa:
Discharge pressure, Mra:
Suction pressure, MPa:
Pressure gauge reading at the discharge end, MPar
6.5.3 Speed
Measure the speed of the prime mover F and calculate the speed according to formula (6): 8
(5)
Formula Where: n
light ball, min;
prime mover speed, rmn:
-speed ratio
6.5.4Power
JB/T8099-1999
6.5.4Use the torque moment method to calculate the system input power, see formula (?: 30000
Where: P.—the input power of the result, w; light i, X·m
6.5.4.2The prime mover efficiency is calculated according to formula (8): P.=Pm fn.
: P.——prime mover input power, kw; Tiot
prime mover efficiency.
6. 5,4.3 When the test speed is different from the rated speed, it should be calculated according to formula (9): P = P
Where: P.——input power at rated speed, kW; Predetermined speed: rimin~
6.5.4.4 If the test medium is different from the working medium, the power should be converted according to formula (10); ft
Where: The pump power of the product is above, kw
P is the residual input power measured during the non-full-time test, W. 6.5.5 Pump efficiency
The efficiency of the pump refers to the ratio of the pump's simple discharge rate to the wheel power, calculated according to formula (I); Pax100%
Wherein: - system efficiency:
P.-system output power, kw,
The output power of the pump can be calculated according to (12): 18
6.5.6 Volume coefficient
The volume coefficient refers to the ratio of the system flow rate to the theoretical flow rate, calculated according to formula (13): K,
Wherein: K——volume coefficient:
2In the test at a faster theoretical flow rate,.
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