CB/T 3952-2002 Marine horizontal self-priming centrifugal vortex pump
Some standard content:
ICS47.020.20
Record number: 11147-2003
Ship industry standard of the People's Republic of China
CB/T 3952-2002
Marine horizontal self-priming centrifugal-vortex pumps
Marine horieuntal seif-priming centrifugal-vortex pumps2002-11-20 Issued
National Defense Science, Technology and Industry Commission Issued
2003-0201 Implementation
This standard is registered by the State Administration of Industry and Information Technology of the People's Republic of China and is approved by the State Administration of Industry and Information Technology of the People's Republic of China. 3952-2002
This standard is issued by: China Institute of Technology, China Academy of Economic Research, Guangdong Guangning Technology Manufacturing Co., Ltd., Tingsu Industry Manufacturing Co., Ltd. The authors of this standard are: Jiao Rensuo, Chen Wenyi, Fan Xiangshen, Lin Zhiti, Qiu Dian: 1 Scope
Marine horizontal self-priming centrifugal vortex pump
(B/T 39622002
This standard specifies the performance classification, requirements, test methods, inspection rules and marking, packaging, transportation & storage of horizontal white suction centrifugal vortex pumps (hereinafter referred to as vortex pumps).
The design, manufacture and acceptance of pumps for drinking water, washing and swimming water (temperature range of 75°C) are used for the delivery of drinking water, washing and swimming water (temperature range of 75°C).
2 Specifications Thermal Reference Documents
The following documents are not included in the standard and constitute the clauses of this standard. They are referenced documents from the relevant parties. The subsequent amendments (including the revised version) are not applicable to the following standards. The parties to this standard shall use the latest version of this document: The latest version of the referenced documents shall be used for this standard GB/T191. 5BT69 cover joint and sealing surface
195? Manufacturing technology conditions
G/:22D-1 stainless steel
G9/T122.-:992 heat-resistant steel
G/T348-358 ductile iron
G3/T2100-2002 stainless steel acid-resistant casting technology GB 2501 coin method "differential connection scale, and sealed mountain four-stage water system flow pattern determination method
G5/T3214-1991
GB/T3216.-J080
G/T6231-005
Hui Xin policy, mixed flow, axial flow and vortex re-test method. 1 Copper and copper alloy chemical composition and product shape GR/T 5661 -1985
Suction pump mechanical customer knowledge block material control production Xu Er Cun 1989 Marine centrifugal type, full dyeing compliance technical system GB/T 10832
CB/T13384-1592 Electromechanical products gas equipment technical requirements CB/T43 period cast iron flange
: 15 Marine cast flange method
JB/5 Pump internal lifting dynamic measurement and evaluation method
System noise measurement and evaluation method
3 Classification
3.1 Structural type
System and motor can be combined type. 3.2 Model indication method
CB/T 3952-2002
3.3 Marking example
The table uses quaternary system
The value after the bit number is divided by 10
is directly connected to the power supply, and the unsigned number is 1 to indicate Hz, 1 indicates that the motor is
centrifugal blue vortex pump
directly connected to the suction port, m
directly connected to the suction port! 1The diameter is 40, the integer value after the specific speed is divided by 10 is 2, the motor is 55H2, and the double-speed machine The standard condition of the horizontal combined two-core system connected by the bracket is: 40CWX-2CR-3922002
The system inlet diameter is 40, the speed after 10 is 4, the motor is 6H, and the connected horizontal self-contained centrifugal pump is marked as:
40CWD-CB/T3952-2002
4 Basic parameters
The basic parameters of the solution are shown in Table 2: and the basic parameters of the 50 Hz pump
4otWX·2
-ca Hx-1. 1
rW model is the same as the corresponding model pump in Table 1. Table 2 40c%X-4U%x:-3 Hz pump basic parameters (see the following table): Type pump model number Pump model NSHR power rating 5. 1 Environmental adaptability
The system should be able to work normally under the following environmental conditions: a) Temperature: 0-50°C; Humidity: The air should be above 90°C with a humidity of less than 90°C. The product may contain a small amount of fog and harmful substances; 2) Strength and load:
3) Horizontal: 2230°C; Period: 3:49°C; 4) Shuttle: ±5°C; 5) Vertical: +730°C; Period: 3x～754°C; 6) Vibration: The system should be able to operate in an environmental vibration frequency of 31°-123°C, with a frequency range of 2 Hz-13.2 Hz When the displacement plate value is +1mm: the explosion is used in 13.2[2--60[7 inches, the acceleration amplitude is 7=/g5.2 The other two requirements
should not have obvious stalks on the surface, points and assembly rate. The non-dynamic transmission parts! The surface groove should be cleaned and buried, the surface coating should be colorful, and there should be no peeling and engraving defects; 5. 3 Performance
5.3.1 Characteristic curve
Manufacturing, one should be in the system under the predetermined speed. Liu should be within the flow range, head, efficiency, cavitation and auxiliary power rate, and the material should be used in the small pump introduction range. 5.3.2 Net Positive Suction Head (NPSH) value at rated flow and constant speed shall be specified in the technical documents of the product. The test medium for the required net NPSH shall be water at room temperature. 53.2.2 The net NPSH shall be the critical net NPSH value obtained by the manufacturer according to the test results.1:~ )
5.6.3 Screen sound
vibration intensity
vibration heat Pr
untzt:
system core product
≤,220mm
system air diffuse noise allowable control public (2) and formula: 3) calculate Pon
Lpa ≤499.ig(P,n)
5.7 Material
The hydraulic power of the pump is expressed in kilowatts (W), in dry grams per meter (km): The flow rate should be expressed in meters or smaller: (): The speed should be expressed in meters ():
The gear ratio is expressed in meters (r/min). 5.1 Material category
Cai center high
>22h-r
According to the different types of materials on the ship, except for the important parts, the materials used in manufacturing are generally divided into two categories: the first category of materials Pumps for delivering seawater on ocean-going vessels and ocean-going vessels: The first type of materials used in the pumps for delivering seawater on ocean-going vessels and ocean-going vessels are: The second ... HT
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Standard number
GR/TI E-1HH'r
SR/TI:2E-1983
GH/1:1H22U2
GB/T2100 2302 | | tt | | G1176-1387 | 987
F/T62212+X1
GF/T1221-1992
Village Brand Division
No. TT Dan
7348 19s6
ZCuSr.3ZnsPhGKil
SU1.TE:19NT
ZCuZnlGSi4wwW.bzxz.Net
3f:r14
ST43G-10
ZCISuJGPI
SB/T1:7E-[D8T
G6/T12201352
GD/1A
GD/TJ17G-1a87
GRTS23.2OU1
5.72 Casting
5.7.2.1 Casting quality
CB/T 3952—2002
For the defects of shrinkage, cracking and other defects, the surface of the parts should be treated by blasting, sandblasting, shot peening, etc. The casting should be smooth and level with the rest of the porcelain mouth. The water stop test should be selected by the industry, and the test should be the best for the industry! 1.5 compensation of force, the maintenance time is not less than 10m casting surface, leakage and writing juice phenomenon, 5.7.2.2 Casting Russian repair
Before using the repair method to repair parts, the residual material in the company should be completely eliminated, the chemical composition of the welding rod and the welding rod should be sufficient to allow the parts to be repaired by other cold repair methods. Before repairing, the defects should be tested in the same way. The cold welding and cold repairing of the material should have the ability to resist corrosion. The defects on the die castings should not be repaired by other methods such as drums and other methods: the pressure parts after repair should be tested for water pressure in the de-stressing layer. The test pressure should be 1.7 times the working pressure, and the maintenance time should not be less than the door. 5.7.2.3 Before painting castings
, the flow channel surface of the casting should be painted with anti-rust paint. The outer surface of the casting should not be painted before leaving the factory. 6 Test methods
6.1 Test equipment
Test equipment, test quality, test conditions and measurement accuracy shall comply with the requirements of G8/11832-1989. 6.2 Appearance inspection
The appearance inspection shall be carried out by pressure test. The result shall comply with the requirements of 5.2. 6.3 Running test
8.3.1 The object shall be subjected to running test under rated load: In the identification test, the running test time is 1h: In the test, for the object with light load or less than 10, the running test time shall be less than 15min. For the object with shaft load of 1k, the running test time shall be less than 15min. In the reverse test, the bearing temperature measured on the bearing core shall comply with the requirements of 5.5.2.4: The leakage of sealing liquid shall be reduced by 3.3.1. 6.4 Performance test
6.4.1 The performance test shall determine the head, shaft speed, efficiency and flow rate at rated speed. 6.4.2 The performance test method shall be in accordance with the provisions of GB/T3216-1589, and the flow meter shall be measured in reverse according to the provisions of GB/T32[4-1991. 6.4.3 The flow rate and head difference at the rated point shall be in accordance with the C-level degree specified in CB/T3216-1989. 6.5 Factory performance test
6.5.1 The factory performance test shall be carried out after the rotation test is qualified. 6.5.2 Delivery! The performance test shall measure the rated speed, power and efficiency at 60%, 100% and 20% of the rated flow. 6.5.3 The performance of the pump at the rated flow point at the rated speed shall be calibrated according to the C-level regulation specified in GB/13216-1989. 6.6 Cavitation test
6.6.1 The steam drum shall also be tested to determine the relationship between the NPSH and the flow, or to verify the necessary cavitation of the system: 6.6.2 The steam drum test shall only be carried out at 60%, 100% and 120% of the rated flow. 6.6.3 The steam drum test shall be carried out according to the regulations of GB/3215-1989. Only the required steam surplus at the rated relief point is the assessment value, and its value should not be higher than the value in Table 1. 6. Steam chain calibration test. The steam chain calibration or verification confirms that the pump does not produce steam at the specified flow rate and the specified required steam surplus. 6.8 Self-priming verification. CB/T 3952—2002. 6.8.1 The test standard is to suck the test pipe 5 straight, with the focus on the upper pipe 3, and the way to the entrance should not be strict. 6.B.2 The first time the spring should be full before the first test. The test should be carried out from the reverse point to the concentrated point, and the time from the residual excess to the start of the water should be measured each time. The result should meet the requirements of 3.3. 6.9 Vibration test 6.9.1 Conditions for vibration test are as follows:
, rated speed is allowed to exceed 5%;
) the system must be stable until %
and there is no other phenomenon in the system.
The vibration test is carried out according to the standard test method and evaluation method of [卫/09]: The vibration system obtained on the bearing surface must meet the requirements of 6.9.2
. For direct-connected groups, the measurement data of the motor extraction near the object end can be used instead. 6.10 Noise test The conditions for noise test are as follows: Rated speed difference 25%: Rated flow difference -5%: c) Object has no steam phenomenon 10.2 The calculated value of formula (4) shall meet the requirements of formula (3). Noise measurement shall be carried out according to the provisions of JB/R098. The results shall meet the requirements of 5.10.3 The peak sound level of the system is measured in terms of sound level. Only the pressure level is measured. The result shall meet the requirements of 5.6.8. If necessary, the sound level can be measured, that is, the approximate pressure level obtained by 1 frequency band or 1/3 band with the wave generator, but it shall be fully specified. 610.4 The noise should be measured at the following points:
a) Measure the noise in the direction of production: 1m between the two supports of the frame, 1m between the two relays of the city machine and the vertical direction. Calculate the average city pressure level of the system according to formula (4) for 1 hour.
In the formula:
Xie Shengdian = 123...
Total number of measurement points;
The internal pressure signal of the first measurement point, in decibels (ratio). Lea.
6.11 Pendulum test
6.11.1 In case of 2.5 above, the cycle is 314 days. The above-mentioned shaking test shall be carried out. The test time shall not be less than 30min. The result shall meet the requirements of 5.1.
6.11.2 Under certain conditions, the pipe tilt test is allowed to replace the swing test: the inclination angle of the test is 2.4° and 30°, as shown in the figure.
Inspection rules
7.1 Inspection classification
The inspection is divided into supervisory inspection and quality inspection.
The inspection is as follows: Table 5 Inspection items
Appearance
Conveyor test
Parts test
! Capability test
Cavitation verification test| |tt||Suction test
Anti-vibration test
Taste test
Greek test
Adjustment test
Note: Registration item; Purchase or wear test item:, will not be. 7.13
When there is one of the invasive conditions, the pump will be made into the certificate: the mother specification of the pump:
Transfer factory production plan;
An Zong Wu No.||t t||The design, structure, and workmanship of the system have been modified by someone and may affect the performance of the system. The system is produced after a long period of production.
The system that has a difference between the first inspection and the second inspection: the system that has been inspected by the quality inspection agency due to the early inspection requirements: the system that has been produced for a full year.
0B/T3952—200
Quality Standard Number
CR/T 3952-2002
7.2 Sampling method
7.2.1 During the identification inspection, select one unit for inspection. 7.2.2 During the quality consistency inspection, each unit shall be inspected. 7.3 Judgment rules
When all the inspection items meet the requirements of the transportation standards, the unit shall be judged as qualified. When one of the inspection items meets the requirements, it shall be checked again after taking measures. If it still does not meet the requirements, it shall be judged as unqualified. 8 Marking, packaging, transportation and storage
8.1 Marking
8.1.1 The label of the system shall be made of resistant materials and fixed in an obvious position. The label shall be marked with "made for the set"! Name and model:
Name and model of the system:
Rated performance parameters of the system:
Flow cushion (m/h);
Popular column (m):
Rotation (\/min):
4) Required steam reserve (PSHR?
Equipped motor power (: :
d) Weight kg.:
Mountain! Number and factory date:
Inspection mark
More than 1.? The direction of rotation of the spare parts shall be indicated by a very obvious arrow on the visible position. 8.1.3 The spare parts and the female parts of the system shall be marked with a mark, and the material shall be rolled and the height of the system shall be confirmed. 9.2 Packaging
8.2.1 The packaging shall comply with the provisions of GB/T191 and GBT13382. 82.2 The other import and export brackets of the objects shall be extended or extended. 8.2.3 The spare parts of the system and the spare parts shall be securely fixed. 8.2.4 The materials supplied by Hangquan shall be effective in the rotation of the system. 8.3 Transportation
3. During transportation, the cargo should be prevented from entering the aircraft. 8.3.2 The cargo should be placed lightly, lightly, or in a weak position. 8.4 Storage
8.4.1 The packaging box should be placed on a place that is not exposed to rain, water or water. The packaging box should be leveled and not touched by the ground.
8.4.2 The packaging box should be opened regularly (not more than half a year). If necessary, the cargo should be disinfected, updated or rusted, and painted with thickeners and labels.
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