This standard applies to the design, manufacture, inspection and acceptance of mechanical stirring equipment in chemical, petrochemical and other similar equipment. HG/T 20569-1994 Mechanical stirring equipment HG/T20569-1994 Standard download decompression password: www.bzxz.net

Industry Standard of the People's Republic of China bzxZ.net
2056994
Mechanical Mixing Equipment
Published on 1994-11-28
. Implemented on 1995--03-01
Published by the Ministry of Chemical Industry of the People's Republic of China Industry Standard of the People's Republic of China
Mechanical Mixing Equipment
HG/T 2056994
Editor: No. 1 Design Institute of the Ministry of Industry and Information Technology
Approving Department: Ministry of Chemical Industry
Effective Date: March 1995
Engineering Construction Standards Editing Center of the Ministry of Chemical Industry
1995 Beijing
Ministry of Chemical Industry Document
Hua Jian Fa (1994) No. 810
Notice on Issuing Four Chemical Industry Standards Including "Mechanical Mixing Equipment"
To all provinces, autonomous regions, municipalities directly under the Central Government, cities with independent planning status, Construction Commissions (Construction Departments), Chemical Industry Departments (bureaus, companies), and all relevant design units:
The four standards "Mechanical Mixing Equipment", "Anti-Frost Liquid Level Meter", "Equipment Lifting Ears" and "Lighted Sight Glasses" formulated by the Ministry's Equipment Design Technology Center Station and organized by relevant design institutes have been reviewed and approved as recommended chemical industry standards. The numbers are detailed in the attachment. They will be implemented from March 1, 1995.
These four standards are managed by the Ministry's Equipment Design Technology Center and published and distributed by the Ministry's Engineering Construction Standards Editing Center. Appendix: Numbers of four chemical industry standards Ministry of Chemical Industry
November 28, 1994
Numbers of four chemical industry standards
Name of standards
Mechanical stirring equipment
Anti-frost liquid level gauge
Equipment lifting ear
Lighted sight glass
Standard number
HG/T20569—94
HG/T21550-93
HG/T21574-—94
HG/T21575-—94
1 General
1.1 Scope
1.2 Definition 1.3 Standard specification 2 Mixing vessel 2.1 Unjacketed vessel 2.2 Jacketed vessel 2.3 Coiled vessel 2.4 Support 2.5 Additional provisions for the effect of the mixer on the mixing vessel 3 Mixer 3.2 Connection between the mixer and the mixing shaft 3.3 Mixing shaft 3.4 Selection of mixing shaft seal 3.5 Selection of transmission device 4 Manufacturing, inspection and acceptance of mixing equipment 4.1 Mixing vessel 4.2 Mixer manufacturing and inspection 4.3 Mixer assembly and inspection Appendix A Strength calculation of steel jacketed container (reference) Appendix B Strength verification calculation of external coil container (reference) Appendix C Selection of relevant data in agitator shaft calculation C.1 Bearing radial clearance C.2 Fluid radial force coefficient K1 C.3 Approximate distribution of agitator power (4) C.4 Transmission side support of single-span agitator shaft Selection of clamping coefficient K2 C.5 Calculation of radial displacement of single-span agitator shaft caused by radial force of fluid 2 radial displacement caused by centrifugal force and intermediate value of critical speed C.6 Selection of allowable radial displacement coefficient Ks, balancing accuracy grade G and allowable torsion angle at shaft seal
Appendix D
Transmission device efficiency (reference)
Appendix E Determination of process parameters of mixing equipment (reference) Preparation instructions
1.1 Scope of application
1.1.1 This standard applies to the design, manufacture, inspection and acceptance of mechanical mixing equipment (referred to as mixing equipment) in chemical, petrochemical and other similar equipment. 1.1.2 This standard does not apply to the following mixing equipment: 1.1.21 Mixing equipment heated by direct flame, 1.1.2.2 Mixing equipment affected by radiation. 1.1.3 This standard does not include fatigue analysis methods for mixing equipment that requires fatigue analysis.
1.2 Definition and composition
Mixing equipment ·Mixing equipment refers to the general term for the two major parts of the mixing container and the mixer.
1.2.2 The mixing container is a container that works with the mixer to complete the physical and chemical processes of medium suspension, dispersion and emulsification, mixing and dissolution, absorption, extraction, chemical reaction and heat transfer during operation.
1.2.3 The mixer is composed of the agitator, agitator shaft, agitator shaft seal and transmission device.
1.2.4: See Table 1.2.4 for typical combinations of mixing containers and mixers. Mixer
Center top seeding
Eccentric top insertion
Typical combination of mixing container and mixer Mixing container
Vertical round simple shape
Vertical round simple shape
Horizontal round simple shape
Typical illustration
Mixer
51 insertion
Mixer
Vertical cylindrical shape
Vertical round simple shape
Typical illustration
Continued Table 1.2.4
Mixer| |tt||Mixing vessel
Horizontal circular shape
Vertical circular shape
Typical illustration
Standard specification
Continued table 1.2.4
1.3.1 In addition to complying with this standard, the design, manufacture, inspection and acceptance of mixing equipment shall also comply with relevant laws, regulations, specifications, standards and provisions promulgated by the state or departments. 1.3.2 If this standard conflicts with the relevant provisions promulgated by the above-mentioned state or departments, the relevant provisions promulgated by the state or departments shall prevail. :
Mixing vessel
This chapter specifies the design and calculation of steel welded mixing vessels. The type and parameters of the mixing vessel selected during the design shall first comply with the provisions of GB984588 "Types and main parameters of steel mechanical mixing vessels", and the mixing pressure vessel shall comply with the provisions of GB150-89 "Steel pressure vessels". 2.1 Unjacketed vessel
The structure and calculation of the mixing pressure vessel shall comply with the provisions of GB150. The tower mixing vessel shall also comply with the provisions of JB4710--92 "Steel Tower Container". Jacketed vessel
Symbols
-Axial force coefficient:
A channel cross-sectional area, mm2;
Weld size, mm;
B Connection coefficient of the sealing cone:
b. ——Width of sealing ring (outer radius minus inner radius) mm—Thickness of spiral guide plate, mm;
-channel width, mm;
C--thickness addition, selected according to 1.6.1 in GB150, mm;Di
Container inner diameter: mm:
-jacket inner diameter, mm,
-maximum inner diameter of expansion joint, mm;
Dr--calculated diameter (for cylinder and head), Dr-D, mmd-outer diameter of honeycomb cone or honeycomb short tube, mm:d--connection circle diameter of jacket head and container head, mmE.-elastic modulus of container material at design temperature, MPa;ea
-distance from container outer wall to mid-surface of jacket wall e=0.5[(D2+S2)-(D1+2S))||t t||The distance from the center of gravity of the cross section of a semicircular tube or an arched tube to the middle surface of the container wall, mm,
F——Axial force generated by gravity load, N; Fk——Axial force acting on the expansion joint, N; fifa—
Strength coefficient of sealing cone connection:
Strength coefficient of honeycomb cone or honeycomb short tube connection; G-vessel deadweight such as internal material gravity, N; G2
Jacket deadweight plus internal material gravity, N
HRelative size coefficient of sealing ring,
ho-Actual thickness of sealing ring, mm;
Calculated thickness of sealing ring, mm;
h1\Width of spiral guide plate, mm;
——Channel height
h2-r:(l-cos?): mm
Moment of inertia of the channel wall cross section about the centroidal axis parallel to the axis of the container cylinder, mm*;
Calculated length of the jacket or container cylinder, mm; Calculated length of the cylinder with reinforcement ring, mm; When determining the calculated length of the cylinder 1, the length of the adjacent elements to be included, mm;
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