Safe Operation of Acetylene Generator Systems

EIGA Doc. 237/21

This publication is intended to provide general guidelines for safe operation of acetylene generator systems. It is limited to acetylene generation systems using calcium carbide added to water, known as wet generation.

The scope includes the carbide supply from receipt at site to entry into the generator, the generation of acetylene to the pipe leaving the generator, the control of temperature via water supply into the generator, the control of level via the discharge of lime out of the generator and gasholders and buffers.

The scope does not include water utilities, lime handling after discharge from the generator, nor response to emergency or abnormal situations.

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Table of Contents
1 Introduction
2 Scope and purpose
2.1 Scope
3 Definitions
3.1 Publication terminology
3.2 Technical definitions
4 Acetylene generator
4.1 Description of the equipment
4.2 Acetylene generation chemical process
4.3 Generator carbide charging systems – open and closed
4.4 Generators classification
4.5 Description of typical generator systems
5 Acetylene gasholder / buffer
5.1 Acetylene Gasholders / Gasometers
5.2 Acetylene Buffers
6 Acetylene generator hazards & safeguards
6.1 Acetylene gas hazards
6.2 Elevated temperatures inside the generator
6.3 Elevated and reduced pressure
6.4 Improper calcium carbide sizing issue
6.5 Improper agitation
6.6 Improper handling of turnplates
6.7 Improper generator liquid levels
6.8 Improper water flow
6.9 Carbide lifting device hazards
6.10 Acetylene gas backflow into water supply systems
6.11 Air ingress into generator
6.12 Improper storage and handling of calcium carbide
6.13 Improper usage of fill cart
6.14 Lime
7 Startup & shutdown of acetylene generators
7.1 Startup
7.2 Shutdown
8 Maintenance of acetylene generators
8.1 Generator cleaning
8.2 Common inspection/maintenance activities
8.3 Purging
9 Training and procedure
10 References
11 Additional references

Fonte: EIGA

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