In Class A indoor areas, there is a possibility of simultaneous leaks of CO2 and ethanol gases; how should the detectors be installed?
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Class A areas contain liquid CO2 and ethanol, so there is a risk of leaks of CO2 and ethanol gases; therefore, detectors should be installed in conjunction with emergency ventilation systems. I have the following questions: 1. What are the installation requirements for CO2 detectors and ethanol detectors? Are there any **standards? 2. How should emergency ventilation be implemented? Should it be pumped from the bottom or the top of the workshop? Because both carbon dioxide and ethanol gases have a higher density than air. Thank you
Gas detectors are installed at different heights to primarily measure the oxygen content in the atmosphere.
1. A ethanol gas detector should be installed at a height of 0.3 to 0.6 meters above the floor surface; this is in accordance with GB 50493-2009, the Design Code for Detection and Alarm of Flammable and Toxic Gases in Petrochemical Industries. 2. Mechanical ventilation should be provided at the bottom of the workshop
This post was last edited by Zhanxia on 2018-12-29 at 12:45. But if liquid carbon dioxide leaks, it will produce a large amount of gaseous carbon dioxide in the room, which can cause suffocation
Therefore, to measure the oxygen level, in accordance with the provisions of \"GB 8958-2006 Safety Regulations for Operations with Oxygen Deficiency Risks\", the oxygen concentration in the work area should be above 19.5%.
According to the design specifications, materials that are flammable should be used; those that are toxic should not be employed. Toxic substances are specified in the relevant regulations; CO2 should not be among them. It’s certainly no problem for companies to install such systems, as it provides an additional layer of protection. For material settlement, air is drawn from the bottom, at a rate of 12 times per hour. Use explosion-proof fans
Oxygen content detector, to be installed at a height of 1000–1200 mm above the ground.