Professional Manufacturer of Natural Gas Storage Tanks Pricing

Operation Procedure for Low-Temperature Natural Gas Storage Tanks

1.1 Introduction to Station Pressure Regulation Process

Attached is a partial process flow diagram of the pressure regulation area, with the equipment to be operated numbered in the process flow diagram.

1.2 Pre-Pressure Regulator Preparation

1.2.1 Preparation of Tools

Explosion-proof wrench, two pairs of gloves, and two sets of protective gear.

1.2.2 Preparatory Work

Wear personal protective equipment, including antistatic suits, antistatic shoes, safety helmets, etc.

(2) Ensure that electronic devices prone to static electricity, such as smartphones and computers, are placed in a safe area. Check if the surrounding environment is secure and meets the operational requirements.

(3) Before entering, touch both hands on the static discharge device to release static electricity.

(4) Ensure that all pressure-regulating tools such as explosion-proof wrenches are fully equipped.

(5) Inspect the tank's pressure gauge, level gauge, thermometer, flammable gas detector, and safety valve to ensure they are operating normally.

(6) Inspect pipeline valves, pressure gauges, and safety valves to ensure they are in normal working condition.

(7) Prepare all explosion-proof tools

Cautionary Notes

1. Cylinders must be stored in well-ventilated areas, with a minimum distance of 1.5 meters from any fire or heat source. Cylinders are strictly prohibited from being heated with fire, boiled, or exposed to direct sunlight. Regular checks should be conducted on the gas tightness of cylinder valves and pipeline joints to ensure no leakage. Leaks can be detected using soap water, and it is strictly forbidden to test for leaks with an open flame.

2. When lighting, first ignite the igniter, then open the gas; do not reverse the order. There should be a person on guard during use, do not leave, to prevent boiling water from spilling and extinguishing the flame, which could cause the gas to escape and lead to an explosion. After using the gas cylinder, the valve must be tightly closed to prevent gas leakage.

3. The liquefied gas in the cylinder should not be completely exhausted; a certain residual pressure must be maintained. The residual pressure should generally be greater than 49.03 kPa (i.e., 0.5 kg/cm², gauge pressure) to prevent air from entering the cylinder. After the liquefied petroleum gas is used up, the remaining residue in the cylinder is also a flammable material and should not be disposed of on its own to avoid fires caused by the leakage and evaporation of the residue.

4. LPG cylinders are pressurized containers that require proper maintenance and regular inspections. Prevent the cylinders from falling or being struck during handling and use. Do not use metal tools to敲击 open the valve, and protect them from direct sunlight and prolonged exposure to rain. Cylinders should be inspected every 2 years.

5. Although the explosive range of liquefied petroleum gas (LPG) is not very wide, its lower explosive limit is low, making it easy to ignite and explode upon leakage. Moreover, as LPG is heavier than air, it tends to flow downwards and accumulate in low-lying areas when leaked into the air, posing a hidden danger of gas explosion. Therefore, in areas where gas leakage is likely, relying solely on window ventilation is insufficient; attention must also be given to the lower ventilation.

6. When a gas leak is detected indoors, promptly open windows and doors for ventilation, allowing the gas to disperse in the direction away from any open flame. No fire is allowed in the vicinity. The area can only be used after the fault is resolved and the distinctive odor has dissipated. Dispose of any leaked liquid on the ground by covering it with sand and soil before removing it to a safe location. In case of a gas cylinder fire, immediately close the valve, move it to an open area outdoors, and extinguish the fire using dry powder extinguisher, carbon dioxide extinguisher, or by covering it with a wet sack.

7. Educate children not to tamper with gas cylinders carelessly, and users must be aware of the safety knowledge for using gas cylinders.