Some standard content:
ICS_47.020.20
National Standard of the People's Republic of China
GB/T5745-2002
Replaces GB/T5745-1996
Marine disc separator
Marine disc separator
Promulgated on 2002-08-28
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Implemented on 2003-01-01
This standard is a revision of GB/T5745-1996 "Marine disc separator". This standard replaces GB/T5745--1996 "Marine disc separator". Compared with GB/T5745-1996, this standard has the following major changes: the specified oil varieties are cancelled in the rated working conditions, and the oil varieties specified as non-emulsifying tendency are added; the disc separator models in the basic parameters are increased by two grades, totaling six specifications, GB/T5745-2002
--- clearly defines the maximum total weight of the drum balance as weighted or weightless, and the total mass of the drum is divided into four grades from the original two grades; the oil used for the separator performance test is changed from the original two to kinds, and "Appendix C: Schematic diagram of the separator test system" is added. Appendix A and Appendix B of this standard are normative appendices, and Appendix C is an informative appendix. This standard is proposed by China State Shipbuilding Corporation. This standard is under the jurisdiction of the Engine Room Auxiliary Machinery Sub-Technical Committee of the National Technical Committee for Standardization of Marine Machinery. Drafting units of this standard: Nanjing Oasis Machinery Factory, China Shipbuilding Industry Comprehensive Technology and Economic Research Institute. The main drafters of this standard: Tu Linchang, Zhang Hanli, Liu Bing, Ji Meilian, Cai Zhenzhong. The previous versions of the standards replaced by this standard are: -CB 107--1960.CB 761-1968.CB 761-1979.GB 5745--1985.GB/T 5745--1996.1
1Scope
Marine disc separator
GB/T 5745-2002
This standard specifies the classification, requirements, test methods, inspection rules, marking, packaging, transportation and storage of marine disc separators (hereinafter referred to as "separators").
This standard applies to the design, manufacture and acceptance of separators for removing moisture and mechanical impurities from mineral oil (fuel oil and lubricating oil). This standard also applies to separators used on land to remove moisture and mechanical impurities from mineral oil. 2 Normative references
The provisions in the following documents become the provisions of this standard through reference in this standard. For all referenced documents with dates, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties that reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all referenced documents without dates, the latest versions are applicable to this standard. GB/T191 Pictorial symbols for packaging, storage and transportation (eqvISO780:1997) GB 252 Light diesel oil
GB/T260 Determination of moisture content in petroleum products
GB/T265 Determination of kinematic viscosity and calculation of dynamic viscosity of petroleum products Determination of mechanical impurities in petroleum products and additives (gravimetric method) GB/T 511
GB/T 699
High-quality carbon structural steelbzxZ.net
GB/T 1173
Casting aluminum alloys
Technical conditions for casting copper alloys (reqISO1338:1977) GB/T 1176
GB/T 1220
Stainless steel bars
Ductile iron castings
GB/T 1348
GB/T 1884
Laboratory determination of density of crude oil and liquid petroleum products (densitometer method) (eqvISO3675:1998)Technical conditions for stainless and acid-resistant steel castings
GB/T 2100
GB/T 3077
GB/T 4774
GB/T 5218
GB/T 6388
GB/T 7060
GB/T 9439
GB/T 10894
GB/T 10895
Alloy structural steel
Terminology of centrifuge and filter
Alloy spring steel wire
Marking of shipping and receiving of transport packaging
Basic technical requirements for rotating electrical machines for ships
Gray cast iron parts
Engineering method for determination of sound power level of noise in separation machinery (neqISO3744:1981)Method for testing mechanical vibration of centrifuge and separator (neqISO3945:1977)GB/T13306Signage
GB/T 13384
General technical conditions for packaging of electromechanical products
CB/T773Technical conditions for structural steel forgings
JB/T7217General technical conditions for coating of separation machineryJB8686Safety requirements for separators
JB/T9095Technical specification for conventional nondestructive testing of forged welded parts of centrifuge and separatorGB/T 5745—2002
3 Terms and definitions
The terms and definitions established in GB/T 4774 and the following terms and definitions apply to this standard. 3.1
Rated speed
The number of revolutions per minute of the separator drum specified in the design. 3.2
Rated conditions
The operating conditions of the separator at rated speed, with a net oil discharge pressure of 0.2 MPa, for separating oils with a separation temperature not exceeding 60°C, a viscosity not exceeding 24 mm\/s, and no tendency to emulsify. 3.3
Purifier bowl
Purifier bowl
A separator drum used for liquid-liquid or liquid-liquid-solid (trace) separation. 3.4
Rated capacity
Rated processing capacity
The processing capacity of the separator per unit time under rated conditions. 3.5
actual processing capacity
actual capacity
The processing capacity of oils of different viscosities under the corresponding separation conditions at the rated speed of the separator 4 Classification
4.1 Structural type
According to the drum discharge structure, the separator is divided into the following three types, see Figure 1: a) DR type
- disc-type manual discharge type, the separator must stop running, and all sludge, water and oil in the drum must be manually discharged; b) DH type--- disc-type ring valve full discharge type, the separator stops oil supply during operation, and automatically discharges all sludge, water and oil in the drum; c) DB type
disc-type ring valve partial discharge type, the separator does not stop oil supply during operation, and automatically discharges sludge and part of water in the drum. ++++
4.2 Basic parameters
4.2.1 The basic parameters of the separator shall comply with the provisions of Table 1. 2
KYDR203
KYDR205
KYDR207
KYDR209
KYDR211
KYDH203
KYDH205
KYDH207
KYDH209
KYDH211
KYDH213
KYDH215
KYDB203
KYDB205
KYDB207
KYDB209
KYDB211
KYDB213
KYDB215
Drum code
Basic parameters
Drum speed range/
(r/min)
9 000~~~6 800
7 000-~6 300
6 500~~5 500
6 000~~5 000
5 500~~4 800
9 000~7 500
7000-6 300
6 500~ 5 500
6 000~5 000
5 500~~4 800
5 000~-4 500
5 200~~4 500
9 000~7 500
7 000~6 300
6 500~~5 500
6 000~5 000
5 500~~4 800
5 000-~4 500
5 200~~4 500
Rated processing capacity/
4.2.2 See Appendix A for the separation conditions and actual processing capacity of various mineral oils. Motor power
GB/T 5745—2002
(including drive pump))/(kW）
Applicable fuel
Distillate fuel oil
Lubricating oil
Distillate fuel oil
Lubricating oil
Distillate fuel oil
Lubricating oil
Residual fuel oil
Lubricating oil
4.2.3 The separator oil pump (gear pump or screw pump) can be of drive-belt or independent type. The main parameters of the oil pump shall meet the requirements of Table 2.
Table 2 Main parameters of oil pump
Suction vacuum/MPa
Discharge pressure/MPa
Flow rate/(L/h)
4.2.4 The automatic control level of the separator is divided according to Table 3. Gear pump or screw pump
Should be greater than the actual processing capacity of the oil in Appendix A
GB/T 5745---2002
Start and stop
Abnormal oil supply
Alarm content
Monitoring content
4.3 Product marking
No slag discharge
Motor overload
Abnormal vibration
4.3.1 The separator model is specified as follows.
Table 3 Automatic control level
Manual start
Electrical system code, 50Hz not marked
Transmission characteristic code
Usage condition characteristic code
Drum function code
Drum import and export type code
Drum size code
Design sequence number
Drum structure type code
Mineral oil
J Purification type
C—Clarification type
-1 Belt
Friction coupling gear
Fluid coupling gear
Not otherwise specified
Conform to marine conditions
-D-Purification, clarification type
With explosion-proof requirements
CInlet open, light liquid, heavy liquid dispersed
Inlet open, light liquid centrifugal pump heavy liquid dispersed
Inlet open, liquid phase bidirectional centrifugal pump
Inlet open, liquid phase outlet open
Inlet open, liquid phase outlet centrifugal pump
-03—
212 ～～ 265
280 ～ 335
355 375
-09—Size range (mm) 400～～425-11
450 475
500~～530
560 630
The initial design specifies 2, and the sequence number increases by 1 for each subsequent design modification
-DR—Manual slag discharge
-DH—Ring valve full slag discharge
-DB—Ring valve partial slag discharge
4.3.2 Marking example
GB/T 5745--2002
Used for mineral oil separation, second design, purification and clarification drum inner diameter 400mm, oil inlet spread, light and heavy liquid outlets are equipped with centripetal pumps, 60Hz power supply and friction coupling gear drive marine ring valve part of the slag separator marked: separator KYDB309SD-2360
5 Requirements
5.1 Conditions of use
GB/T5745-2002
The separator is in the following It should be able to operate normally under marine environmental conditions: a) When the horizontal axis of the separator is parallel to the ship's swell line and the vertical axis is installed perpendicular to the horizontal plane: heel ±15°;
pitch ±5°;
roll ±22.5°, cycle 10s~12s;
pitch ±7.5°, cycle 10s~12s;
c) The relative humidity of the operating environment is not more than 95%; d) The operating environment temperature is not higher than 50℃;
e) There are mold and salt spray in the operating environment.
5.2 Performance
5.2.1 Under rated working conditions, when the volume fraction of water content in the oil is not more than 2% and the mass fraction of mechanical impurities is not more than 0.1%, the volume fraction of water content and the mass fraction of mechanical impurities in the clean oil should be reduced to 0.3% and 0.03% respectively after the purification drum separation.
5.2.2 When the separator is operating under rated conditions, the maximum temperature of the lubricating oil in the gear tank shall not be higher than 85°C, and the temperature rise shall not be greater than 50°C. 5.2.3 When the separator is operating under rated conditions, the drum speed shall not be less than 97% of the rated speed. 5.2.4 When the separator is operating under rated conditions, its vibration speed shall not be greater than 7.1mm/s. 5.2.5 When the separator is operating under rated conditions, its noise value (sound pressure level) shall comply with the following regulations: a) DR type separator shall not be greater than A sound level 85dB; b) DH and DB type separators shall not be greater than A sound level 90dB. 5.2.6 During operation, there shall be no leakage at the seals of the separator. 5.2.7 The automatic control system supporting the separator shall operate accurately. 5.2.8 Under normal use, minus the replacement time of wearing parts, the average trouble-free working time of the separator shall not be less than 7000h5.3 Safety
5.3.1 The motor and independent oil pump of the separator shall be marked with the rotation direction at a conspicuous position or painted. 5.3.2 The gear oil tank of the separator shall be equipped with an oil level observation device or oil level indicator. 5.3.3 The tightening direction of the connection thread of the load-bearing parts in the separator drum assembly shall be opposite to the rotation direction of the drum. 5.3.4 The separator shall be equipped with a braking device.
5.3.5 During the operation of the separator (including starting and stopping), the rotating parts and the stationary parts shall not rub against each other. 5.3.6 The motor of the separator shall comply with the provisions of GB/T7060. 5.3.7 The electronic control equipment of the separator shall comply with the provisions of relevant national standards and relevant classification society specifications. 5.3.8 The motor and electronic control equipment of the separator shall have reliable grounding devices. 5.3.9 The exposed transmission parts or mechanisms of the separator shall be equipped with protective devices. 5.3.10 The separator shall prevent the separated liquid or water from penetrating into the lubricating oil tank of the machine base from the structure. 5.3.11 Other safety requirements of the separator shall comply with the provisions of JB8686. 5.4 Appearance
5.4.1 The external non-machined surfaces of the casting parts of the separator shall be puttyed and painted. The coating shall be evenly flat, smooth, and harmonious in color. There shall be no defects such as wrinkles, flow marks, bubbles and pinholes. 5.4.2 Effective anti-corrosion measures shall be taken for the internal non-machined surfaces of the casting parts of the separator and the fasteners used. 5.4.3 The stainless steel pressed shell of the separator shall not have obvious concave-convex defects, and the surface shall be polished. 5.4.4 Other coating requirements shall comply with the provisions of JB/T7217. 5.5 Materials
5.5.1 The forgings of the five parts of the separator drum body, drum cover, main lock ring, piston and vertical shaft shall comply with the provisions of GB/T1220 or CB/T773, and a material report shall be submitted.
5.5.2 The materials of other parts of the separator shall comply with the following provisions or adopt other materials with performance not lower than the following provisions: a) Gray iron castings shall comply with the provisions of GB/T9439; Ductile iron castings shall comply with the provisions of GB/T1348; b)
Aluminum castings shall comply with the provisions of GB/T1173; c)
Copper castings shall comply with the provisions of GB/T1176; d)
Stainless steel castings shall comply with the provisions of GB/T2100; f) Structural steel parts shall comply with the provisions of GB/T699 or GB/T3077, and stainless steel parts shall comply with the provisions of GB/T1220; g) Important spring parts shall comply with the provisions of GB/T5218. 5.6 Process
5.6.1 The main parts such as the drum body, drum cover, main lock ring, piston and vertical shaft shall be inspected by non-destructive testing and shall comply with the provisions of JB/T9095. Welding repair is not allowed for defects.
5.6.2 Mechanical properties report of material samples for drum parts shall be submitted. 5.6.3 When the drum body and the vertical shaft are connected by conical surface circumferential fixing, the fitting area between the matching conical surface and the gauge shall be greater than 80%.
5.6.4 All drum parts of the separator shall be dynamically balanced, with the verification accuracy of G6.3 level, and the allowable imbalance of dynamic balance shall be determined according to Appendix B.
5.6.5 The maximum total dynamic balancing weight (total weight removed or added) of the drum components shall comply with the following provisions: For drum components with a total mass less than or equal to 100kg, the maximum total dynamic balancing weight shall not exceed 1/800 of the total drum mass; a)
For drum components with a total mass exceeding 100kg to 300kg, the maximum total dynamic balancing weight shall not exceed 1/1000 of the total drum mass; b)
For drum components with a total mass exceeding 300kg to 600kg, the maximum total dynamic balancing weight shall not exceed 1/1500 of the total drum mass; c)
d) For drum components with a total mass exceeding 600kg, the maximum total dynamic balancing weight shall not exceed 1/2000 of the total drum mass. When the maximum total weight exceeds the above provisions, the relevant parts of the drum shall be checked and corrected. 5.6.6 The correction of the unbalanced value of the dynamic balancing of the drum components shall be carried out by weight removal or weight addition, and the weight removal or weight addition shall not exceed 2 places. The deweighted area should be smooth without sharp edges.
5.7 Completeness
5.7.1 The scope of supply should include one separator (including the matching motor), one set of spare parts, one set of accessories, and one set of special tools. 5.7.2 The documents accompanying the separator should include:
a) Product quality certificate;
b) Ship inspection certificate;
c) Product instruction manual;
d) Spare parts list;
Accessory list;
f) Special tool list;
g) Packing list.
Note: The separator that does not require ship inspection does not provide a ship inspection certificate. 6
6 Test method
6.1 Test medium
GB/T5745—2002
6.1.1 The oil used for the test is No. 0 light diesel oil in accordance with GB252 and lubricating oil base oil in accordance with Table 4, or other fuel oil specified in the contract.
Table 4 Lubricating oil base oil parameters
Kinematic viscosity/
(mm2/s)(40°℃)
Appearance Visual inspection
Color number
Viscosity index
Flash point (open)/
≥235
6.1.2 The test additives are clean fresh water and activated carbon powder sieved through a No. 200 sieve. 6.2 Test device
6.2.1 The test should be carried out on a special test device. For the test system, see Appendix C. Pour point/
Neutralization value/
(mgKOH/g)
Residual carbon/%
6.2.2The instruments and meters used for test measurement shall be qualified by the metrology department and within the specified validity period, and their accuracy shall meet the test accuracy requirements.
6.2.3The motor used for the test shall be the original motor of the separator. 6.2.4The test of the oil pump with the separator shall be carried out separately, and its main parameters shall meet the requirements of 4.2.3; the independent oil pump shall have a factory quality certificate.
6.3 Appearance inspection
Use visual inspection to inspect the appearance of the separator, which shall meet the requirements of 5.4. 6.4 Startup and shutdown test
Start the separator without load, observe whether the startup process is normal, measure and record the time from the start of the separator to the rated speed and the maximum current value during the startup process. The operating conditions of the startup process shall meet the requirements of 5.3.5. When the separator reaches the rated speed, the power supply is cut off without using the brake, and its free parking process shall comply with the requirements of 5.3.5. 6.5 Operation test
6.5.1 The test oil during the operation test is No. 0 light diesel oil in accordance with GB252, and the test is carried out at room temperature. 6.5.2 At the rated speed, the test is carried out according to the actual processing capacity. The continuous test time shall be no less than 2 hours, and the purification/clarification type drum shall also be subjected to a 0.5 hour clarification test. During the test, the DH type separator shall discharge slag once every 1 hour; the DB type separator shall discharge slag once every 0.5 hours.
6.5.3 After the test has been running stably for 1 hour, the voltage, current, drum speed (or speedometer speed), outlet pressure, processing capacity, vibration value, separation oil temperature, gearbox oil temperature and ambient temperature shall be measured. The DB type separator shall also measure the partial slag discharge once. The measured data shall meet the requirements of 5.2.2, 5.2.3, 5.2.4 and Table 1 respectively.
6.5.4 The separator equipped with automatic control system shall be adjusted according to the automatic control level in Table 3. The result shall meet the requirements of 5.2.7. 6.6 Vibration measurement
The vibration of the separator shall be measured according to the provisions of GB/T10895 after the running test has been running stably for 1 hour. The result shall meet the requirements of 5.2.4.
6.7 Noise measurement
The noise of the separator shall be measured according to the provisions of GB/T10894 during the continuous running test. The slag discharge pipe shall be closed during the measurement of DH and DB type separators. The result shall meet the requirements of 5.2.5. 6.8 Overspeed test
6.8.1 The overspeed test shall be carried out in a place with reliable safety protection measures. 6.8.2 During the test, the drum is filled with clean water and the test is carried out at 115% of the rated speed. The test time shall not be less than 10 minutes. 6.8.3 Before the test, the drum body, drum cover, main lock ring and piston and other parts should be subjected to non-destructive testing and dimensional measurement. Each tested part should be measured for 75 The maximum total dynamic balancing weight (total weight removed or added) of the drum components shall comply with the following provisions: For drum components with a total mass less than or equal to 100kg, the maximum total dynamic balancing weight shall not exceed 1/800 of the total drum mass; a) For drum components with a total mass exceeding 100kg to 300kg, the maximum total dynamic balancing weight shall not exceed 1/1000 of the total drum mass; b) For drum components with a total mass exceeding 300kg to 600kg, the maximum total dynamic balancing weight shall not exceed 1/1500 of the total drum mass; c) For drum components with a total mass exceeding 600kg, the maximum total dynamic balancing weight shall not exceed 1/2000 of the total drum mass. When the maximum total weight exceeds the above provisions, the relevant parts of the drum shall be checked and corrected. 5.6.6 The correction of the unbalanced value of the dynamic balancing of the drum components shall be carried out by weight removal or weight addition, and the weight removal or weight addition shall not exceed 2 places. The deweighted area should be smooth without sharp edges.
5.7 Completeness
5.7.1 The scope of supply should include one separator (including matching motor), one set of spare parts, one set of accessories, and one set of special tools. 5.7.2 The documents accompanying the separator should include:
a) Product quality certificate;
b) Ship inspection certificate;
c) Product instruction manual;
d) Spare parts list;
Accessory list;
f) Special tool list;
g) Packing list.
Note: The separator that does not require ship inspection does not provide a ship inspection certificate. 6
6 Test method
6.1 Test medium
GB/T5745—2002
6.1.1 The oil used for the test is No. 0 light diesel oil in accordance with GB252 and lubricating oil base oil in accordance with Table 4, or other fuel oil specified in the contract.
Table 4 Lubricating oil base oil parameters
Kinematic viscosity/
(mm2/s)(40°℃)
Appearance Visual inspection
Color number
Viscosity index
Flash point (open)/
≥235
6.1.2 The test additives are clean fresh water and activated carbon powder sieved through a No. 200 sieve. 6.2 Test device
6.2.1 The test should be carried out on a special test device. For the test system, see Appendix C. Pour point/
Neutralization value/
(mgKOH/g)
Residual carbon/%
6.2.2The instruments and meters used for test measurement shall be qualified by the metrology department and within the specified validity period, and their accuracy shall meet the test accuracy requirements.
6.2.3The motor used for the test shall be the original motor of the separator. 6.2.4The test of the oil pump with the separator shall be carried out separately, and its main parameters shall meet the requirements of 4.2.3; the independent oil pump shall have a factory quality certificate.
6.3 Appearance inspection
Use visual inspection to inspect the appearance of the separator, which shall meet the requirements of 5.4. 6.4 Startup and shutdown test
Start the separator without load, observe whether the startup process is normal, measure and record the time from the start of the separator to the rated speed and the maximum current value during the startup process. The operating conditions of the startup process shall meet the requirements of 5.3.5. When the separator reaches the rated speed, the power supply is cut off without using the brake, and its free parking process shall comply with the requirements of 5.3.5. 6.5 Operation test
6.5.1 The test oil during the operation test is No. 0 light diesel oil in accordance with GB252, and the test is carried out at room temperature. 6.5.2 At the rated speed, the test is carried out according to the actual processing capacity. The continuous test time shall be no less than 2 hours, and the purification/clarification type drum shall also be subjected to a 0.5 hour clarification test. During the test, the DH type separator shall discharge slag once every 1 hour; the DB type separator shall discharge slag once every 0.5 hours.
6.5.3 After the test has been running stably for 1 hour, the voltage, current, drum speed (or speed meter speed), outlet pressure, processing capacity, vibration value, separation oil temperature, gearbox oil temperature and ambient temperature shall be measured. The DB type separator shall also measure the partial slag discharge once. The measured data shall meet the requirements of 5.2.2, 5.2.3, 5.2.4 and Table 1 respectively.
6.5.4 The separator equipped with automatic control system shall be adjusted according to the automatic control level in Table 3. The result shall meet the requirements of 5.2.7. 6.6 Vibration measurement
The vibration of the separator shall be measured according to the provisions of GB/T10895 after the running test has been running stably for 1 hour. The result shall meet the requirements of 5.2.4.
6.7 Noise measurement
The noise of the separator shall be measured according to the provisions of GB/T10894 during the continuous running test. The slag discharge pipe shall be closed during the measurement of DH and DB type separators. The result shall meet the requirements of 5.2.5. 6.8 Overspeed test
6.8.1 The overspeed test shall be carried out in a place with reliable safety protection measures. 6.8.2 During the test, the drum is filled with clean water and the test is carried out at 115% of the rated speed. The test time shall not be less than 10 minutes. 6.8.3 Before the test, the drum body, drum cover, main lock ring and piston and other parts should be subjected to non-destructive testing and dimensional measurement. Each tested part should be measured for 75 The maximum total dynamic balance weight (total weight removed or added) of the drum components shall comply with the following provisions: For drum components with a total mass less than or equal to 100kg, the maximum total dynamic balance weight shall not exceed 1/800 of the total drum mass; a) For drum components with a total mass exceeding 100kg to 300kg, the maximum total dynamic balance weight shall not exceed 1/1000 of the total drum mass; b) For drum components with a total mass exceeding 300kg to 600kg, the maximum total dynamic balance weight shall not exceed 1/1500 of the total drum mass; c) For drum components with a total mass exceeding 600kg, the maximum total dynamic balance weight shall not exceed 1/2000 of the total drum mass. When the maximum total weight exceeds the above provisions, the relevant parts of the drum shall be checked and corrected. 5.6.6 The correction of the unbalanced value of the dynamic balance of the drum components shall be carried out by weight removal or weight addition, and the weight removal or weight addition shall not exceed 2 places. The deweighted area should be smooth without sharp edges.
5.7 Completeness
5.7.1 The scope of supply should include one separator (including the matching motor), one set of spare parts, one set of accessories, and one set of special tools. 5.7.2 The documents accompanying the separator should include:
a) Product quality certificate;
b) Ship inspection certificate;
c) Product instruction manual;
d) Spare parts list;
Accessory list;
f) Special tool list;
g) Packing list.
Note: The separator that does not require ship inspection does not provide a ship inspection certificate. 6
6 Test method
6.1 Test medium
GB/T5745—2002
6.1.1 The oil used for the test is No. 0 light diesel oil in accordance with GB252 and lubricating oil base oil in accordance with Table 4, or other fuel oil specified in the contract.
Table 4 Lubricating oil base oil parameters
Kinematic viscosity/
(mm2/s)(40°℃)
Appearance Visual inspection
Color number
Viscosity index
Flash point (open)/
≥235
6.1.2 The test additives are clean fresh water and activated carbon powder sieved through a No. 200 sieve. 6.2 Test device
6.2.1 The test should be carried out on a special test device. For the test system, see Appendix C. Pour point/
Neutralization value/
(mgKOH/g)
Residual carbon/%
6.2.2 The instruments and meters used for test measurement must be qualified by the metrology department and within the specified validity period, and their accuracy should meet the test accuracy requirements.
6.2.3 The motor used for the test should be the original motor of the separator. 6.2.4 The test of the oil pump with the separator should be carried out separately, and its main parameters should meet the requirements of 4.2.3; the independent oil pump should have a factory quality certificate.
6.3 Appearance inspection
Use visual inspection to inspect the appearance of the separator, which should meet the requirements of 5.4. 6.4 Startup and shutdown test
Start the separator without load, observe whether the startup process is normal, measure and record the time from the start of the separator to the rated speed and the maximum current value during the startup process. The operating conditions of the startup process should meet the requirements of 5.3.5. When the separator reaches the rated speed, the power supply is cut off without using the brake, and its free parking process shall comply with the requirements of 5.3.5. 6.5 Operation test
6.5.1 The test oil during the operation test is No. 0 light diesel oil in accordance with GB252, and the test is carried out at room temperature. 6.5.2 At the rated speed, the test is carried out according to the actual processing capacity. The continuous test time shall be no less than 2 hours, and the purification/clarification type drum shall also be subjected to a 0.5 hour clarification test. During the test, the DH type separator shall discharge slag once every 1 hour; the DB type separator shall discharge slag once every 0.5 hours.
6.5.3 After the test has been running stably for 1 hour, the voltage, current, drum speed (or speed meter speed), outlet pressure, processing capacity, vibration value, separation oil temperature, gearbox oil temperature and ambient temperature shall be measured. The DB type separator shall also measure the partial slag discharge once. The measured data shall meet the requirements of 5.2.2, 5.2.3, 5.2.4 and Table 1 respectively.
6.5.4 The separator equipped with automatic control system shall be adjusted according to the automatic control level in Table 3. The result shall meet the requirements of 5.2.7. 6.6 Vibration measurement
The vibration of the separator shall be measured according to the provisions of GB/T10895 after the running test has been running stably for 1 hour. The result shall meet the requirements of 5.2.4.
6.7 Noise measurement
The noise of the separator shall be measured according to the provisions of GB/T10894 during the continuous running test. The slag discharge pipe shall be closed during the measurement of DH and DB type separators. The result shall meet the requirements of 5.2.5. 6.8 Overspeed test
6.8.1 The overspeed test shall be carried out in a place with reliable safety protection measures. 6.8.2 During the test, the drum is filled with clean water and the test is carried out at 115% of the rated speed. The test time shall not be less than 10 minutes. 6.8.3 Before the test, the drum body, drum cover, main lock ring and piston and other parts should be subjected to non-destructive testing and dimensional measurement. Each tested part should be measured for 74 Separators equipped with automatic control systems shall be adjusted according to the automatic control level in Table 3. The results shall meet the requirements of 5.2.7. 6.6 Vibration measurement
The vibration of the separator shall be measured according to the provisions of GB/T10895 after the running test has been running stably for 1 hour. The results shall meet the requirements of 5.2.4.
6.7 Noise measurement
The noise of the separator shall be measured according to the provisions of GB/T10894 during the continuous running test. The slag discharge pipe shall be closed during the measurement of DH and DB type separators. The results shall meet the requirements of 5.2.5. 6.8 Overspeed test
6.8.1 The overspeed test shall be carried out in a place with reliable safety protection measures. 6.8.2 During the test, the drum is filled with clean water and the test is carried out at 115% of the rated speed. The test time shall not be less than 10 minutes. 6.8.3 Before the test, the drum body, drum cover, main lock ring and piston and other parts should be subjected to non-destructive testing and dimensional measurement. Each tested part should be measured for 74 Separators equipped with automatic control systems shall be adjusted according to the automatic control level in Table 3. The results shall meet the requirements of 5.2.7. 6.6 Vibration measurement
The vibration of the separator shall be measured according to the provisions of GB/T10895 after the running test has been running stably for 1 hour. The results shall meet the requirements of 5.2.4.
6.7 Noise measurement
The noise of the separator shall be measured according to the provisions of GB/T10894 during the continuous running test. The slag discharge pipe shall be closed during the measurement of DH and DB type separators. The results shall meet the requirements of 5.2.5. 6.8 Overspeed test
6.8.1 The overspeed test shall be carried out in a place with reliable safety protection measures. 6.8.2 During the test, the drum is filled with clean water and the test is carried out at 115% of the rated speed. The test time shall not be less than 10 minutes. 6.8.3 Before the test, the drum body, drum cover, main lock ring and piston and other parts should be subjected to non-destructive testing and dimensional measurement. Each tested part should be measured for 7
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