Gas cylinder cabinet

Introduction to Laboratory Gas Cylinder Cabinets

Core Uses
If high-pressure gas cylinders are stored randomly in the laboratory, they are prone to collapse due to collision, which may cause damage to the cylinders and gas leakage. The core function of a gas cylinder cabinet is:

1. Fixed gas cylinders: The movement of gas cylinders is restricted by dedicated brackets or chains to prevent them from toppling over.

2. Risk isolation: Physically isolate hazardous gases of different natures from the experimental area and personnel activity area;

3. Leak Warning: Some high-end models are equipped with gas detection sensors to monitor leaks in real time and issue alarms;

4. Directional exhaust: In coordination with the ventilation system, it quickly expels the leaked harmful gases from the laboratory to reduce their concentration.

Main Classification (by the Nature of the Stored Gas

The hazardous characteristics of different gases (such as flammability, support for combustion, toxicity, and inertness) vary greatly. Therefore, gas cylinder cabinets of different protection levels should be matched to avoid mixed storage and reactions.

Key Structures and Materials

The structural design of the gas cylinder cabinet should take into account both “safety protection” and “ease of operation”. The core components and materials are as follows:

Cabinet material: Cold-rolled steel plate (thickness 1.0-1.2mm), surface treated with acid washing and phosphating + epoxy resin electrostatic spraying, featuring anti-corrosion, impact resistance and high-temperature resistance. 304 stainless steel cabinets can be used in some special scenarios (such as highly corrosive environments).

– Cabinet door design:

– Single door/double door/triple door (corresponding to single bottle/double bottle/triple bottle storage), with mechanical door lock (to prevent unauthorized opening);

The flammable/toxic gas cabinet is standardly equipped with an explosion-proof glass window (allowing for the observation of the internal gas cylinder status and avoiding the risk of leakage by opening the door for inspection).

– Internal fixtures:

– Gas cylinder chains/brackets are installed at the bottom or on the side (adjustable in tightness to accommodate gas cylinders of different diameters);Some models come with gas cylinder trays (to prevent the bottom of the gas cylinders from getting damp and rusting, and to facilitate handling).

– Safety accessories:
– Gas detection sensor;
– Ventilation interface;
Anti-static grounding terminal.

Usage and Management Norms

Even if a qualified gas cylinder cabinet is configured, it is still necessary to strictly follow the usage norms in order to maximize the safety effect

1. Classified storage: It is strictly prohibited to store gases with conflicting properties together (for example, oxygen and acetylene must not be stored in the same cabinet, and toxic gases must not be stored in the same cabinet as inert gases).

2. Regular inspection
– Check weekly whether the gas cylinder valve is tightly closed, whether the chain is firmly fastened, and whether the cabinet door seal is in good condition.
Calibrate the gas leakage alarm (if any) monthly to ensure the sensor sensitivity;

3. Correct operation
When opening the cabinet door, move slowly to avoid the shaking of the gas cylinder caused by the impact of the airflow.
When replacing a gas cylinder, first close the valve of the original gas cylinder to release pressure, then disassemble the pipeline. After the new gas cylinder is fixed, open the valve.

4. Environmental Requirements: The gas cylinder cabinet should be placed in a dry, well-ventilated area free of open flames and away from heat sources (such as ovens and electric furnaces), with a flat ground (to prevent the cabinet from tilting).

In conclusion, the core value of a laboratory gas cylinder cabinet lies in “controlling the safety risks of high-pressure gas cylinders”.