Some standard content:
ICS29.160.30
Machinery Industry Standard of the People's Republic of China
JB/T6216—2002
Replaces JB/T6216—1992
Technical specification for P-series canned motors
Technical specification for P-series canned motorsPublished on July 16, 2002
Implementation on December 1, 2002
Published by the State Economic and Trade Commission of the People's Republic of ChinaForeword
Normative referenced documents
Types and basic parameters
Technical requirements
Inspection rules..
Test methods.
Marking and packaging
JB/T62162002
This standard replaces JB/T6216--1992 "Technical Specifications for P Series Canned Motors". The main changes of this standard compared with JB/T6216-1992 are as follows: The referenced documents are revised to indicate the date and the latest version is cited: - The numerical rounding rules are added;
- The model description in Chapter 3 is cancelled.
This standard is proposed by the China Machinery Industry Federation, JB/T6216-2002
This standard is under the jurisdiction of the National Rotating Electric Machine Standardization Technical Committee Hoisting Metallurgy and Shielded Motor Standardization Sub-Technical Committee (SACTC26/SC4).
This standard was drafted by: Jiamusi Explosion-proof Motor Research Institute, Jiamusi Electric Motor Co., Ltd. The main drafters of this standard are: Yu Shuhua, Chang Huanliang, Wang Xiaoli, Xia Liang. This standard was first issued in June 1992.
Technical conditions for P series canned motors
JB/T6216—2002
This standard specifies the types and basic parameters, technical requirements, inspection rules, marking and packaging requirements of P series canned motors (hereinafter referred to as motors or electric pumps).
This standard applies to ordinary electric pumps that do not contain solid particles in the conveyed liquid. All kinds of electric pumps derived from this series of electric pumps can be implemented as a reference.
2 Normative reference documents
The clauses in the following documents become the clauses of this standard through reference in this standard. For all dated reference documents, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties who reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all undated reference documents, the latest versions are applicable to this standard. GB/T191-2000 Pictorial symbols for packaging, storage and transportation (egvISO780:1997) GB755--2000 Ratings and performance of rotating electrical machines (idtIEC60034-1:1996) GB/T997-1981 Code for motor structure and installation type (neqEC60034-7:1972) GB/T1032-1985 Test methods for three-phase asynchronous motors GB/T3216-19897
Test methods for centrifugal pumps, mixed flow pumps, axial flow pumps and vortex pumps (eqvISO2548:1973) GB/T4772.1-1999 Dimensions and output power levels of rotating electrical machines Part 1: Frame size 56400 and flange size 55~1080 (idtIEC60072-1:1991)
GB/T4942.1-20 01 Rotating electrical machine housing protection classification (IP code) (idtIEC60034-5:1991) GB/T9112—2000
Steel pipe flange types and parameters
GB/T13384-1992
General technical conditions for packaging of electromechanical products
Vibration measurement and evaluation method for pumps
JB/T8097—1999||t t||JB/T8098—1999
Method for measuring and evaluating noise of pumps
JB/T9615.1—2000
Test method for inter-turn insulation of scattered windings of AC low-voltage motors JB/T9615.2--2000 Test limit type and basic parameters for inter-turn insulation of scattered windings of AC low-voltage motors
3.1 The electric pump is a single-stage centrifugal type, and the pump and the motor are coaxial. 3.2 The protection grade of the motor housing is IP55 (see GB/T4942.1-2001). 3.3 The motor rating is a continuous rating based on the continuous working system (S1). 3.4 The direction of rotation of the motor is counterclockwise when viewed from the pump end. 3.5 The installation method of the motor is horizontal and vertical (see GB/T997-1981). 3.6 The rated frequency of the motor is 50Hz and the rated voltage is 380V. 3.7 The design point flow rate of the electric pump is 3.2m/h~200m/h, the design point head is 20m125m, the power is 0.75kW90kW, the temperature of the conveyed liquid is -50℃~+150℃, the maximum kinematic viscosity is 0.5×10**m/s, the density is 300kg/m~2000kg/m, and the maximum working pressure of the conveying liquid system does not exceed 4MPa. 3.8 When the electric pump is used for clear water at room temperature, the basic parameters shall comply with the provisions of Table 1 and Figure 1. The efficiency of the pump design point shall not be lower than the provisions of Table 1. 3.9 The required NPSH of the electric pump design point shall not be greater than the provisions of Table 1. The effective NPSH a must be more than 10% greater than the required NPSH r and shall not be less than 0.5m. JB/T6216—2002
Suction population
02-160750316070
Discharge outlet
Impeller name
Diameter
250/65-
203765
3160/65
125/65
Flow rate q
15/100
250/100-
405060
Lift H
06-315
2507125160-2507
20 0/125
Pump efficiency
Required NPSH
Speed n
Suction port
4 Technical requirements
Discharge port
Impeller name
Diameter
Table 1 (continued)
Flow rate q
Head H
Pump efficiency n
JB/T6216—2002
Required NPSH
Speed r
Electric pumps shall comply with the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. 4.2 When used under the following conditions, the electric pump shall be able to operate continuously and normally. 4.2.1 The maximum ambient air temperature varies with the seasons, but shall not exceed 40℃. 4.2.2 The minimum ambient air temperature is -50℃, but the liquid in the circulation pipeline of the electric pump should not freeze. Speed
4.2.3 The electric pump with a cooling water jacket should be filled with clean water with a temperature below 30℃ during operation. The cooling water flow in the water jacket shall not be lower than the provisions of Table 2, but the cooling water of the electric pump shall not freeze, and the normal operation of the cooling water system shall be guaranteed. Table 2
Rated power
Cooling water flow
>15~25
>25~45
>45~90
4.3 When using normal wet clean water for testing, the flow of the electric pump is rated: the head, pump efficiency and required NPSH shall comply with the provisions of 3.9 of this standard. When other liquid tests are required or field tests are required, the specific test methods and requirements shall be agreed upon by the user and the manufacturer. 4.4 The electric pump shall ensure that the conveyed liquid is completely leak-free. 4.5 The tolerance of the flow rate and head of the electric pump shall comply with the provisions of Class C in GB/T3216-1989. 4.6 The outlet flange size of the electric pump shall comply with the provisions of GB/T9112-2000 steel pipe flange type. The installation size and external dimensions of the electric pump shall be in accordance with the manufacturer's sample or the agreement between the manufacturer and the user. 4.7. The rated power of the motor equipped with the electric pump shall comply with the provisions of GB/T4772.1-1999. In principle, the ratio of the rated power of the motor equipped with the electric pump to the rated working condition shaft power of the electric pump shall be located above the curve shown in Figure 2. However, if the maximum shaft power of the electric pump does not exceed the rated power of the motor equipped within the allowable working range of the electric pump, the percentage value specified in Figure 2 may be reduced. 4.8 The deviation of the power supply voltage and frequency of the motor during operation from the rated value shall comply with the provisions of GB755-2000. 4.9日
The electrical performance of the motor shall meet the following requirements: 4.9.1 When the power, voltage and frequency are rated, the guaranteed values of the motor efficiency and power factor shall not be lower than those specified in Table 3. 4.9.2
Under rated voltage, the guaranteed value of the ratio of the motor's stall torque to the rated torque shall not be less than that specified in Table 3, with a numerical rounding interval of 0.1.
4.9.3Under rated voltage, the guaranteed value of the motor's rated speed shall not be less than that specified in Table 3. JB/T6216—2002
Rated power
>15~30
>30~90
Note: Efficiency is determined by the measured stray loss analysis method. sbZxz.net
Rated shaft power of pump kW
Power factor
Stalled torque/rated torque
Rated speed
4.9.4Under rated voltage, the guaranteed value of the ratio of the motor's minimum torque to the rated torque during starting shall not be less than 0.8 times, with a numerical rounding interval of 0.1.
Under rated voltage, the guaranteed value of the ratio of the motor's maximum torque to the rated torque shall not be less than 1.8 times, with a numerical rounding interval of 0.1. 4.9.5
4.9.6 Under rated voltage, the guaranteed value of the ratio of the motor's stall current to the rated current shall not be greater than 6 times, with a numerical rounding interval of 0.1. Note: When calculating the ratio of stall current to rated current, the rated current value used shall be obtained according to the guaranteed values of rated power, rated voltage, efficiency and power factor (excluding their tolerances).
The tolerance of the guaranteed value of the motor's electrical performance shall comply with the provisions of Table 4. Table 4
Electrical performance name
Rated power 50kW and below
Rated power above 50kW
Power factor cos
Stalling torque
Minimum torque
Maximum torque
Stalling current
Slip rate
1kW and above
Below 1kW
-0.15(1-)
0.10(1-n)
(1cos ) /6
guaranteed value-15%
guaranteed value-15%
guaranteed value-15%
guaranteed value+20%
guaranteed value+20%
guaranteed value+30%
JB/T6216—2002
4.10 The motor adopts B, F, H grade insulation. When the use conditions meet the requirements of 4.2 of this standard, the temperature limit of the stator winding shall not exceed the provisions of Table 5, and the value rounding interval is 1. Insulation grade
Resistance method
Unit: ℃
The motor shall be able to withstand the maximum torque value specified in 4.9.5 (taking into account the tolerance) in the hot state and gradually increasing the torque: 4.11
for 15s without sudden speed change, stalling and harmful deformation. At this time, the voltage and frequency shall be maintained at the rated value. 4.12 The motor shall be able to withstand an overspeed test of 1.2 times the rated speed under no-load conditions for 2 minutes. After the test, there shall be no permanent abnormal deformation and no other defects that hinder the normal operation of the motor. It is qualified. 4.13 The insulation resistance of the motor stator winding shall not be less than 0.5MQ in the hot state after the temperature rise test, and the cold insulation resistance shall not be less than 50M2.
4.14 The stator winding of the motor shall be able to withstand a withstand voltage test lasting 1 minute to the ground without breakdown. The frequency of the test voltage is 50Hz and it shall be a sine wave as much as possible. The effective value of the test voltage is 1760V. When a large number of motors are continuously produced for inspection and testing, the test time is allowed to be shortened to 1s, and the effective value of the test voltage is 2110V. The test voltage is applied with a test rod.
4.15 The stator winding of the motor shall be able to withstand the turn-to-turn impulse voltage test. The peak value of the impulse voltage shall comply with the provisions of JB/T9615.2-2000. 4.16 Balance and vibration:
4.16.1 The rotating parts of the electric pump should be dynamically balanced. 4.16.2 When the electric pump is in rated operation, the effective value of the vibration intensity measured for horizontally installed electric pumps should not exceed the provisions of Table 6: for vertically installed electric pumps, it should not exceed 3.5mm/s, and the numerical rounding interval is 0.1. Table 6
Electric ticket center height
Effective value of vibration intensity
≤225
When the electric pump is in rated operation, the A-weighted average sound pressure level measured should not exceed the provisions of Table 7, and the numerical rounding interval is 1. Table 7
Noise limit
dB (A)
When the three-phase power supply is balanced, the deviation of any phase of the three-phase no-load current of the motor from the three-phase average value should not be greater than 10% of the three-phase average value.
JB/T6216-—2002
4.19 The motor is equipped with overheat protection and bearing wear monitoring devices according to user requirements. 4.20 During the inspection and test of the motor, the no-load current and loss, the locked-rotor current and loss of the motor shall be controlled within the specified range to ensure that the electrical performance of the motor meets the requirements of 4.9. 4.21 There is a grounding bolt in the motor junction box, and a grounding mark shall be provided near the grounding bolt. This mark shall ensure that it is not easy to be erased during the entire service life of the motor.
4.22 The electric pump shall be assembled completely and correctly, the nameplate and marks shall be complete, the surface paint shall be completely dry, and there shall be no stains, bumps and cracks. 4.23 The electric pump shall be able to rotate freely, smoothly and briskly, without stagnation. 4.24 The electric pump shall be subjected to a whole machine water pressure test, the test pressure shall be 1.5 times the maximum working pressure, the test shall be carried out with clean water at room temperature, the pressure shall be maintained for not less than 10 minutes, the pressure bearing parts and seals shall not have defects such as leakage and deformation, and then the pressure shall be slowly released. : 4.25 On the basis of the user's correct selection of models and materials, and the correct use and storage of the electric pump in accordance with the provisions of the maintenance instructions, the manufacturer shall ensure that the electric pump can operate normally within one year of use, but no more than two years from the date of shipment from the manufacturer (except for wearing parts such as bearings, bearing sleeves, thrust plates, etc.). If the electric pump is damaged or cannot operate normally due to poor manufacturing quality within this specified time, the manufacturer shall repair or replace parts for the user free of charge until the entire electric pump is replaced, but this is not limited to normal damage to wearing parts or damage caused by failure to replace wearing parts that should be replaced. 5 Inspection rules
5.1 Each electric pump shall be inspected and qualified by the manufacturer's technical inspection department according to the inspection test items and user order requirements before it can be shipped, and shall be accompanied by a product certificate.
5.2 Each electric pump shall be inspected and tested. The inspection and test items include: 5.2.1 Mechanical inspection items:
Rotation inspection and inspection of impeller axial clearance: a)
Installation dimensions, external dimensions, and surface quality inspection: b)
Nameplate content inspection.
5.2.2 Inspection and test items:
All items of mechanical inspection:
Measurement of insulation resistance between winding and casing and between windings (cold insulation resistance can be measured during inspection and test, but insulation resistance in hot state shall be not less than the provisions of 4.13); Measurement of DC resistance of winding in actual cold state Withstand voltage test;
Turn-to-turn impulse withstand voltage test:
Measurement of no-load current and loss:
:: Note: During type test, no-load characteristic curve shall be measured. Determination of stall current and loss:
Note: During the type test, the no-load characteristic curve should be measured, the hydraulic performance test of the electric pump (check the head, flow rate and shaft power of the electric pump in the working range according to the provisions of GB3216-1989, h)
and draw the relationship curve between head, shaft power, speed and flow rate) i
Determination of electric pump vibration:
i) Electric pump water pressure test.
5.3 Type test must be carried out in any of the following situations: a)
Completion of trial production of new products:
The first trial production or small batch production of the manufacturer: When the changes in design or process are sufficient to cause changes in certain performance or parameters c)
: d): When the inspection test results have an unacceptable deviation from the previous type test results; Electric motors produced in batches should be regularly sampled and tested at least once a year. e)
5.4 The type test items of electric pumps include:
All items of inspection test:
Operation test:
JB/T6216-2002
Performance test (and give the relationship curve of head, shaft power, efficiency, speed and flow rate according to regulations): Cavitation test (and give the relationship curve of cavitation margin and flow rate according to regulations); Determination of motor load characteristic curve (and give the performance curve of efficiency, power factor, input power, slip rate, stator current and output power according to regulations):
Motor temperature rise test:
Motor short-time over-torque test:
Determination of maximum torque of motor:
Determination of minimum torque during motor starting: Motor overspeed test:
Determination of electric pump noise:
Enclosure protection grade test (only done when the product is finalized). 6
Test methods
The operation test, performance test and cavitation test of the electric pump shall comply with the Class C provisions in GB/T3216-1989. When the measured performance 6.1
point is higher than the specified performance point and is judged to be unqualified, if it is only for turning the impeller diameter to make the impeller diameter reach the allowable range, there is no need to retry, but the impeller turning diameter shall not exceed 5% of the original diameter. 6.2 The measurement method of the vibration of the electric pump shall comply with the Class B provisions in JB/T8097-1999. The measurement method of the noise of the electric pump shall comply with the Class C provisions in JB/T80981999. 6.3
The performance test and measurement method of the motor shall comply with the provisions of GB/T1032-1985. 6.4
The test method of the inter-turn impulse voltage resistance of the motor shall comply with the provisions of GB/T9615.1-2000. 6.5
The enclosure protection level test of the motor shall comply with the provisions of GB/T4942.1-2001.6.6
In all tests of the electric pump, when the rotor needs to rotate, the rotor cavity shall always be filled with the test liquid to avoid dry wear damage to the bearing.6.7
7 Marking and packaging
Each electric pump must be firmly equipped with a nameplate indicating the rated data of the electric pump and its necessary matters in a conspicuous position. The material and engraving method of the nameplate shall ensure that its writing is not easily erased during the entire service life of the electric pump. 7.2 The items to be indicated on the nameplate are as follows:
Model and name:
Standard number:
Rated power, in kW;
Rated frequency, in Hz:
Rated voltage, in V:
Rated current, in A:
Rated speed, in r/min;
Wiring method:
Number of phases;
Insulation grade:
Rated flow, in m~/h;
Rated head, single = m:
JB/T6216—2002
Maximum working pressure, in MPa:
Required cavitation margin, in m
Maximum temperature of conveyed liquid, in °C; Shell protection grade:
Maximum temperature of cooling water (only for electric pumps with cooling water), in °C; Water jacket cooling water flow (only for electric pumps with water jacket) in m\/h: Mass, in kg:
Production number:
Production year and month:
Manufacturer name.
7.3 The direction of rotation of the electric pump shall be indicated by an obvious arrow in a prominent position. The outlet of the motor stator winding and the terminal in the junction box shall be marked with corresponding marks, and the writing shall be ensured to be difficult to erase during the entire service period of the motor. The three-phase power line terminal of the motor is marked with U, V, and W. 7.5 The packaging of the product shall comply with the provisions of GB/T13384-1992. 7.6 The packaging of the electric pump shall ensure that it will not be damaged due to poor packaging under normal transportation conditions, and measures shall be taken to avoid damage to the bearings caused by vibration and collision during transportation. 7.7 All manholes of the electric pump shall be sealed to prevent damage during transportation and entry of foreign objects. 7.8
The text and signs on the outer wall of the box shall be clear and neat, and the contents are as follows: a)
Shipping station and manufacturer name:
Receiving station and receiving unit name:
Electric pump model and product number:
Electric pump net weight and gross weight together with the box:
Box dimensions, and the words and symbols such as "Handle with care", "Afraid of moisture", and "Center of gravity" shall be marked at appropriate locations outside the box, and the graphics shall comply with the provisions of GB/T191-2000. 9 Each electric pump should be accompanied by the following documents and accessories: 7.9
Packing list;
Product certificate;
Instruction manual;
Installation dimensions and overall dimensions;
Necessary documents.
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