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Chemical Industry Standard of the People's Republic of China
HG/T 2473-93
High-speed disperser
Published on June 30, 1993bZxz.net
Implementation on January 1, 1994
Published by the Ministry of Chemical Industry of the People's Republic of China Chemical Industry Standard of the People's Republic of China
High-speed disperser
1 Subject content and applicable scope
H/G2473-93
This standard specifies the design, manufacture, testing, inspection, acceptance, marking, packaging, storage and transportation requirements of high-speed dispersers (hereinafter referred to as dispersers).
This standard applies to dispersers for dispersing, stirring and breaking up liquid-solid phase particles and agglomerates under normal pressure. 2 Reference standards
GB:700
GB:1048
GB1176
GB 1184
GB1220
GB1B01
GB 2100
GB3274
GB3280
GB 3768
GB9439
GB11352
GB/T 13306
3 Design
Technical conditions for high-quality carbon structural steel
Carbon structural steel
Nominal pressure of piping components
Technical conditions for cast copper alloy parts
Shape and position tolerances Provisions for tolerances without indication Stainless steel parts
Tolerances and fits up to 500mm holes, shafts and fits Technical conditions for stainless acid-resistant steel castings
Stainless steel chainless steel arms
Carbon structural steel and low alloy structural steel rolled thick steel plates and steel strips Hot-rolled stainless steel plates
Determination of sound power level of noise sources
Simplified island method
Ash Cast iron parts
Cast carbon steel for general engineering
Seamless steel pipe
General technical conditions for packaging of electromechanical products
3.1 The structure of the disperser should be tight and the layout should be reasonable. According to the structural characteristics, it can be divided into floor-standing type and suspended type. 2 Basic parameters should comply with the provisions of Table 1
Approved by the Ministry of Chemical Industry of the People's Republic of China on June 30, 1993 and implemented on January 1, 1994
Rated power of main motor W
Minimum circumferential speed of disperser 4/
Lifting stroke of disperser in mm
Spindle rotation angle in
Production capacity/ h
Material viscosity: Pa
Dispersion uniformity %
100~500
247393
500~1000
1000~2000
2000~4000
In addition to meeting the requirements of this standard, the disperser shall meet the product drawings and technical documents approved through the prescribed procedures. 3.4 Materials
Main parts of the disperser shall meet the following requirements and shall have a material inspection certificate. 3.4,1 Mirror iron parts shall meet the requirements of GB 9439 3.4.2 Cast steel parts shall meet the requirements of GB 2100 or GB 11352 3:4.3 The materials of shafts, cylinders, dispersion discs, etc. shall meet the requirements of GB699, GB700, GB 3274, GB3280, GB1220.
3.4.4 The material of pipe parts shall meet the requirements of GB2270 or YB231. 3:4.5 The material of oil cylinder tree shall meet the requirements of GB1176. 3.5 The electrical components and electrical equipment with explosion-proof requirements shall be purchased or manufactured according to the requirements of the corresponding explosion-proof level. 36 All supporting parts and purchased parts shall meet the requirements of the corresponding product standards and shall have product certificates. 37 The insulation resistance between the conductive part and the dispersed body shall be greater than 5MQ: The insulation resistance between the grounding terminal and the metal shell of the electrical equipment and the dispersed body shall not be greater than 0.10.
3.8 The protective grounding terminal shall be made of copper material and shall be clearly marked. 3.9 The live parts shall not be exposed, and the screws fixing the conductive parts shall be prevented from loosening. 3.10 The electrical system of the disperser can withstand the insulation dielectric strength test of 1760V, 50Hz, and the time is 1min without breakdown and flickering. Manufacturing and assembly
The welds of welded parts shall not have defects such as cracks, pores, pits and slag inclusions. 4.1
4.2 The dimensional accuracy level of the main parts of the bearing seat, dispersion shaft, oil cylinder and other parts shall comply with the provisions of GB1801 and shall meet the requirements of Table 2 Requirements,
Bearing seat
Dispersed shaft
Hole matching with bearing
Neck matching with bearing
Inner surface matching with village
Accuracy grade
Surface roughness R
The shape and position tolerances of important parts of bearing seat, dispersed shaft, cylinder, plunger and other parts shall comply with the provisions of GB1184 and shall meet the requirements of Table 3 4.3
Shaft carbon seat
Dispersed shaft
HG/ T 2473-—93
Name of position and geometric tolerance
Coaxiality of bearing seat
Axis between journals matching with bearing
Inner surface cylindricality matching with bushing
Straightness of foreign cylindrical surface matching with inner surface of bushing Public supervision grade
The oil cylinder shall be subjected to water pressure or sleeve pressure test, the test pressure shall be 1.25 times of the design pressure of the oil cylinder, and there shall be no leakage after maintaining the pressure for 30 minutes. The pipelines and pipeline accessories of the hydraulic system shall be subjected to hydraulic strength test, and the test pressure shall be in accordance with the requirements of GB1048. All parts shall be assembled only after passing the inspection. After assembly, the radial runout tolerance of the lower end of the dispersion shaft (50mⅡ away from the dispersion disk) shall meet the requirements of Table 4. 4
Radial runout tolerance of the lower end of the dispersion shaft
5 Test method
Visual inspection of the weld appearance quality of each joint shall meet the requirements of Article 4.1. 5.1
The hydraulic pressure test pump for the hydraulic test of the cylinder shall be increased to the specified value at one time, which shall meet the requirements of Article 4.4. 5.2
The hydraulic pressure test of the pipelines and pipeline accessories of the hydraulic system shall meet the requirements of Article 4.5. 5.3
5.4 The cylinder shall be subjected to the oil plunger descending disk test. The cylinder plunger is raised 300m and maintained at pressure for 2h. The descending disk of the cylinder plunger shall meet the requirements of Table 5.
The amount of oil plunger descent: mm
5.5 Dielectric strength test with dielectric shock The test results shall meet the requirements of Article 3.10. 37L
Insulation resistance and ground resistance shall be tested with a 500V megohmmeter. The test results shall meet the requirements of Article 3.7. 5.6
Idle running test
The circumferential speed of the disperser disc shall meet the requirements of Table 1. The idling test shall be carried out with a continuous running time of not less than 1h. The following requirements shall be met: a. The action of the motor, control electrical appliances and interlocking shall be sensitive and accurate; b.
Each lubrication point shall be lubricated normally without leakage or seepage; the oil red plunger shall rise steadily:
The radial runout of the lower end of the ageing shaft shall meet the requirements of Article 4.7. d.
The temperature rise of the bearing part shall meet the requirements of Table 6; Table 6
Temperature rise of the bearing part
HG/T 2473-93
fAll tight fittings should be connected reliably without looseness. The disperser should run smoothly without abnormal sound. The noise sound power level should be measured according to the provisions of GB3768 and should meet the requirements of Table 7.
Sound power level noise dB(A)
5.8 Simulated load operation test
5.8.1 After the idling test is completed: the load operation test can be carried out. 11L
5.8.2 Use oil or other non-corrosive liquid with a viscosity meeting the requirements of Table 1 as the simulated material. The continuous operation time is more than 0.5h and it should meet the requirements of 5.7, b, c, d, e, f., and h. 5.9 The circumferential speed of the dispersion disk can be measured by measuring the speed of the dispersion shaft of the measuring disk, and the speed of the dispersion shaft can be obtained by conversion. The measurement is measured by a non-contact tachometer, and the measuring point is on the dispersion shaft.
5.10 The bearing temperature is measured at the center plane of the bearing. After the bearing temperature rise is stable or after the disperser has been running continuously for not less than 1 hour, the measurement instrument is a point thermometer.
511 The production capacity and dispersion uniformity can be directly measured at the user's place. The user shall provide relevant usage reports, which shall meet the requirements of Table 1. 6 Inspection rules
61 The disperser shall be inspected and qualified by the quality inspection department of the manufacturer and a certificate of conformity shall be issued. 62 The inspection of the disperser is divided into factory inspection and type inspection. 62.1 Factory inspection
The inspection items and requirements shall be in accordance with the provisions of 3.63.7, 3.8, 3.9, 3.10, 4.6, 4.7.5.4, 3.7, 5.8, 6.2.2 Type inspection
Type inspection items and requirements are in accordance with the factory inspection items plus the provisions of 3.4 and 35. 6.2.3 Factory inspection is carried out on each unit, and type inspection shall be randomly selected from the qualified products of factory inspection; no less than 2 units of each structural type, 62.4 Type inspection shall be carried out when any of the following situations occurs. During product trial production, finalization and monitoring;
b. When there are major changes in design, materials and processes, production shall be stopped for ten to twenty months, and when reinserting production
d. When the normal production time reaches twenty-four months;. f. When the factory inspection result is significantly different from the last type inspection result f. When the national quality supervision agency proposes type inspection requirements, 6.3 Inspection rules judgment
6.3. Each disperser shall be inspected according to Article 6.2.1. If one of the inspection data fails, the disperser shall be judged as unqualified for the factory inspection.
6.3.2 When the type inspection meets the requirements of Article 6.2.2, the type inspection shall be judged as qualified. If there is one unqualified item, an additional number of units shall be sampled for inspection. If there are still unqualified items, the batch shall be judged as unqualified products. 7 Marking, packaging, storage and transportation
11 Marking
7.1,1: The comprehensive paint on the outer surface of the disperser shall be in accordance with the drawings and HG/T 2473-93
7.1.2 Each disperser shall have a product label fixed in a conspicuous position. The label shall comply with the requirements of GB/T13306 and include the following contents: Copy. Product name and model;
Rated power of main motor (kW);
Speed of dispersed shaft (r/min);
Stroke (mm);
Date of production and factory number:
f. Net weight;
Name of manufacturer,
7.2 Packaging
7.2.1 Seal the outer tread pipe mouth with a plastic sleeve before packaging: The documents supplied with the product should be put into a plastic film bag and put into the packaging box together with the product. The packaging should comply with the requirements of JB.2759. 7.2.2 The outer wall of the saddle box should be marked with the following contents: Receiving unit and address;
b. Product name, model and factory number; c. Dimensions and gross weight; d. Shipping unit and address. 1.2.3 Random documents: · Packing list; b. Product quality certificate; Instructions for use of products. 73 Storage and transportation The disperser should be placed in a packing box according to the requirements of Article 7.2.1 and stored in a clean, dry and ventilated warehouse. When stored outdoors, protective support should be provided and violent shaking should be prevented during transportation. Additional notes: This standard was proposed by China National Chemical Equipment Corporation and is under the jurisdiction of the Chemical Machinery Research Institute of the Ministry of Chemical Industry. This standard was drafted by Shanghai Coating Industry Machinery Factory, Jiangyin Fine Chemical Machinery Factory and Jiangyin Chemical Machinery Factory. The main drafters of this standard are Gu Zhikang, Shu Qiping, Zhang Jiye, Jiansheng and Wang Xuenong. Chemical Industry Standard of the People's Republic of China Commercial Speed Disperser HG/T 2473-93 Editor China Chemical Equipment Corporation Postal Code 100011 Printing Beijing Institute of Chemical Technology Printing Factory Copyright reserved 880×1230 First edition June 1994 No reprinting 0.5 sheets 10.5 thousand words First printing June 1994 Price RMB 3.00
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