Some standard content:
ICS 71. 120. 10;21. 140
Registration No.: 10167—2002
Chemical Industry Standard of the People's Republic of China
HG/T2098--2001
Mechanical seal series and operation parameters for process tanks
Mechanical seal series and operation parameters for process tanks2002-01-24 Issued
2002-07-01 Implementation
State Economic and Trade Commission Issued
This standard is a revision of the recommended chemical industry standard HG/T2098—1991 "Mechanical seal series and operation parameters for process tanks". This standard will replace HG/T2098—1991 from the date of implementation. This standard was proposed by the Policy and Regulations Department of the former State Administration of Petroleum and Chemical Industry. This standard is under the jurisdiction of the Chemical Industry Special Seal Standardization Technical Committee. The drafting units of this standard are: Beijing University of Chemical Technology, Kunshan Kettle Mechanical Seal Factory, Shazhou Institute of Technology Mechanical Seal General Factory, Zhejiang Changcheng Reducer Co., Ltd., Wenzhou Jiangnan Mechanical Seal Factory. The main drafters of this standard are: Li Jihe, Wu Jianming, Wang Liming, Sheng Jianhua, Yu Peiqing. Chemical Industry Standard of the People's Republic of China
Mechanical seal series and operation parameters for process tanks
Mechanical seal series and operation parameters for process tanks1Scope
This standard specifies the series and main parameters of mechanical seals for process tanks. HG/T2098—2001
Replaces HG/T2098—1991
This standard applies to mechanical seals for steel reaction tank stirring shafts and similar vertical rotating shafts. Its working parameters are: the pressure of the medium in the reactor is 1.33×10-5 (absolute pressure) ~ 6.3MPa, the temperature of the medium is not more than 350℃ (when the temperature of the medium in the reactor is high, refer to HG/T2122 to add auxiliary measures); the outer diameter of the stirring shaft (or sleeve) is 30~220mm; the speed is not more than 2m/s: the medium is a variety of fluids except strong oxidizing acids and high-concentration alkalis.
2 Reference standards
The provisions contained in the following standards constitute the provisions of this standard by being cited in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. HG/T2122—1991 Auxiliary device for mechanical seals for kettles HG3167-1986 Shaft diameter series for agitator shaft
HG205921997 Types and parameters of steel pipe flanges (European system) 3 Series of mechanical seals for kettles and applicable shaft diameter, pressure, temperature and speed range 3.1 Common series of mechanical seals for kettles are shown in Table 1. Table 1 Common series of mechanical seals for kettles
Series code
205, 206, 207, 208, 222
Structural features
Single end face, small spring
Double end face, small spring
Polytetrafluoroethylene bellows
3.2 The applicable pressure, shaft diameter, temperature and speed range of mechanical seals for kettles are shown in Table 2, and the applicable media are shown in Table 3. Approved by the State Economic and Trade Commission on January 24, 2002, and implemented on July 1, 2002
Series code
HG/T2098-2001
Table 2 Applicable pressure, shaft diameter, temperature and speed range of mechanical seals for kettlesPressure, MPa
Shaft diameter, mm
30~220
Temperature, ℃
Speed, m/s
3.3 Mechanical seals for kettles should preferably use double-end face structure type. In situations where the sealing leakage is not required to be high, single-end face structure type can be selected. 3.4 The shaft diameter series of the stirring shaft should comply with the provisions of HG3167. 3.5 When the temperature of the medium in the kettle is not more than 80℃, the sealing cooling water jacket may not be added. Common materials and applicable scope of the kettle mechanism seal series4
Common materials and applicable scope of the kettle mechanical seal series Refer to Table 3, Table 4 and Table 5. Table 3 Common materials and applicable scope of mechanical seals for kettles Rotating ring and stationary ring materials
Graphite impregnated phenolic resin
Graphite diffused furan resin
Graphite impregnated epoxy resin
Graphite impregnated chrome alloy
Chromium-nickel steel
Metal surface fusion welding nickel-based alloy
Metal surface fusion welding cobalt-based alloy
Metal surface spraying
Silicon nitride
Nickel cemented carbidewww.bzxz.net
Cobalt cemented carbide
Pressureless sintered silicon carbide
Reaction sintered silicon carbide
Alumina
Reinforced (glass fiber filled) polytetrafluoroethylene
Reinforced (graphite filled) polytetrafluoroethylene
Applicable Scope of application
Acids, oils, acids other than nitric acid and other strong oxidizing acids, alkalis, oils, weak acids other than nitric acid and other strong oxidizing acids, alkalis, salt water, light oil, ethylbenzene, styrene, solvents and other acids, alkalis, except hydrochloric acid and hydrofluoric acid
Weak acids, weak alkalis, alcohols, oils, liquid hydrocarbons and other weak acids, weak alkalis, alcohols, oils, liquid hydrocarbons and other oils, ethylbenzene, styrene, solvents, acetone and other acids, alkalis, organic matter, etc.
Oil, acids, alkalis, organic matter, etc.
Oil, weak acids, alkalis, organic matter, etc.
Hydrofluoric acid, organic acids, alkalis, organic matter and other weak acids, alkalis, organic matter, etc.
Except hydrofluoric acid and high-concentration acids
Oxidizing acids, organic matter, etc.
Acids, organic matter, etc.
HG/T2098-2001
Table 4 Materials, structural types and applicable scope of auxiliary sealing rings for mechanical seals for use Auxiliary sealing ring materials and structural types
NBR O-ring
Fluororubber O-ring
Silicone rubber O-ring
Chloroprene rubber O-ring
EPDM O-ring
Mulberry tetrafluoroethylene O-ring
PTFE V-ring
PTFE birch ring
Rubber coated PTFE O-ring
Scope of application
Oil, water, alcohol, etc.
Solvent and acid resistance
Alcohol and alkali solution
Inorganic acid and alkali solution|| tt||Ammonia water, alkaline solution
Various corrosive media, solvents
Various corrosive media, solvents
Various corrosive media, solvents
Various corrosive media, solvents
Table 5 Kettle mechanical seal springs and other structural materials and applicable scope Springs and other structural materials
Chromium-nickel steel
5 Kettle mechanism seal series structure and basic size code
General medium
Scope of application
Medium except hydrochloric acid and hydrofluoric acid
5.1 The dimensions of the mechanical seal series for reaction skewers and the flange connection for reaction skewers shall comply with the provisions of HG20592. 5.2 The structure of the single-end small spring 204 kettle mechanical seal is shown in Figure 1. The structure of the double-end small spring 205 kettle mechanical seal is shown in Figure 2. The structure of the double-end small spring 206 type kettle mechanical seal is shown in Figure 3. The basic dimensions of the 204 type, 205 type, and 206 type kettle mechanical seals are shown in Table 6. D
Single-end small spring 204 type kettle mechanical seal structure diagram and
HG/T2098-2001
Figure 2 Double-end small spring 205 type kettle mechanical seal structure diagramFigure 3 Double-end small spring 206 type kettle mechanical seal structure diagramAgitator shaft diameter
HG/T2098-2001
Basic dimensions of 204 type, 205 type, and 206 type mechanical seals D
H(max)
5.3 Double-end small spring 207 type kettle mechanical seal structure is shown in Figure 4, and the basic dimensions are shown in Table 7. D
Figure 4 Structure of double-end small spring 207 type kettle mechanical seal-
Agitator shaft diameter
HG/T2098—2001
Table 7 Basic dimensions of double-end small spring 207 type kettle mechanical sealD
H(max)
5.4 The structure of the double-end small spring-loaded 208-type mechanical seal is shown in Figure 5, and the basic dimensions are shown in Table 8. d
Figure 5 Structure of mechanical seal for type 208 with double-end small spring Figure 9
Shaft diameter of stirring shaft
HG/T2098-2001
Basic dimensions of mechanical seal for type 208 with double-end small spring D
H(max)
The structure of mechanical seal for type 212 with single-end polytetrafluoroethylene bellows is shown in Figure 6, and the basic dimensions are shown in Table 9. 30
Figure 6 Structure of mechanical seal for type 212 with single-end polytetrafluoroethylene bellows mm
Shaft diameter of stirring shaft
HG/T2098—2001
Basic dimensions of mechanical seal for type 212 with single-end polytetrafluoroethylene bellows Table 9
5.6 The structure of radial double-end mechanical seal for type 222 with a kettle is shown in Figure 7, and the basic dimensions are shown in Table 10. D
H(max)
Structure diagram of radial double-end 222 type kettle mechanical seal Figure 7
Agitator shaft diameter
HG/T2098-2001
Table 10 Basic dimensions of radial double-end 222 type kettle mechanical seal D
H(max)
(Beijing) Xindengzi No. 039
People's Republic of China
Chemical industry standard
Kettle mechanical seal series and main parameters
HG/T2098--2001
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Format: 880×1230 mm1/16 Printing sheet: 1 Word count: 27,000 wordsFirst edition in June 2002First printing in Beijing in June 2002 Book number: 155025·0100
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