SH/T 3150-2016 in English

SH/T 3150-2016 Technical specification for agitators in petrochemical industry

1 Scope

This specification specifies the basic requirements for design, manufacture, inspection and test of agitators in petrochemical industry.

This specification is applicable to the engineering design and equipment procurement of agitators for petrochemical industry.

2 Normative references

The following documents are indispensable for the application of this specification. For dated references, only the edition cited applies. For undated reference, the latest edition (including any amendments) applies.

GB 150.1-150.4 Pressure vessels
GB/T 9239 Balance quality of rigid rotors - Determination of permissible residual unbalance
GBZ 2.2-2007 Occupational exposure limits for hazardous agents in the workplace - Part 2: Physical agents
GBZ/T 189.8-2007 Measurement of physical agents in workplace - Part 8: Noise
SH/T 3406 Steel pipe flanges for petrochemical industry
HG/T 20592 Steel pipe flanges (PN designated)
HG/T 20615 Steel pipe flanges (Class designated)
ISO 1940-1 Mechanical vibration - Balance quality requirements for rotors in a constant (rigid) state - Part 1: Specification and verification of balance tolerances
ASME B16.5 Pipe flanges and flanged fittings: NPS 1/2 through NPS 24
ASME B16.47 Large diameter steel flanges: NPS 26 through NPS 60

3 Terms and definitions

For the purposes of these specifications, the following terms and definitions apply.

3.1
agitator-equipment
assembly of agitator-vessel and agitator

3.2
agitator-vessel
vessel for completing the physical and chemical processes of a medium under the action of an agitator

3.3
agitator
machine consisting of impeller, shaft, shaft seal system and driving device (driver, reducer, rack and coupling)

3.4
impeller
component consisting of blades or vane wheel of various geometric shapes

3.5
shaft seal
sealing device at the joint of agitator transmission shaft and agitator-vessel

4 Alternative designs

The seller may provide alternative designs that are beneficial to all parties concerned (the buyer/seller) from a technical and commercial point of view. The alternative design provided by the seller shall include detailed description, use performance and standard specifications for application. The buyer shall evaluate the alternative design scheme and decide whether to adopt it or not.

5 Basic design requirements

5.1 General requirements

Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Alternative designs
5 Basic design requirements
5.1 General requirements
5.2 Shaft
5.3 Impellers
5.4 Vibration
5.5 Shaft seal system
5.6 Intermediate bearing and bottom bearing
5.7 Mounting bottom cover and flange
5.8 Materials
5.9 Noise
6 Ancillaries
6.1 Drivers
6.2 Reducer
6.3 Rack
6.4 Couplings
6.5 Control and instruments
6.6 Auxiliary piping and appurtenances
6.7 Special tools
7 Inspection and test
7.1 General
7.2 Inspection
7.3 Test
8 Painting, marking, packaging and transportation
9 Guarantee
10 Seller's information
Annex A (Informative) Supply scope for reference
Annex B (Informative) Format of agitator data sheet
Annex C (Informative) Comparison of main materials for agitators
Annex D (Informative) Comparison of piping material
Annex E (Informative) Drawings and information to be provided by the seller
Explanation of wording in this specification