How much for a professional Liquefied Natural Gas (LNG) storage tank?

Product Description

Brand Huokuo Group Model CFW-60/0.8

Material: Stainless Steel, Diameter: 2916mm

Application Range    -162℃    Volume    60000L

Heat Exchange Area See drawing sq. m Ambient Temperature See drawing °C

Wall Thickness: 8mm, Outer Dimensions: φ2916*14929mm

Origin: Shandong Heze

Jiangxi 60-cubic-meter LNG Storage Tank, Hunan 100-cubic-meter Natural Gas Storage Tank, 30-cubic-meter LNG Storage Tank Price

1.2 Pre-Pressure Regulating Preparation

1.2.1 Tool Preparation: Explosion-proof adjustable wrench, two pairs of gloves, two sets of protective equipment.

1.2.2 Work Preparation

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

Ensure that electronic devices such as phones and computers, prone to static discharge, are placed in a safe area, and check if the surrounding environment is secure and meets operational requirements.

Before entering, touch both hands to the static discharge device to release static electricity.

Check if all pressure-regulating tools, such as explosion-proof wrenches, are carried.

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

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

(7) Prepare all explosion-proof tools

1.2.3 LNG Storage Tank Gas Supply Process:

All valves of the tanks to be pressurized, except for the root valve and the emergency shutdown valve, are in the closed position.

Open the lower inlet valve of the storage tank and the valves for boosting liquid and vapor phases, check that both valves before and after the boost vaporizer are open.

Open the low-temperature cutoff valve before the gasifier, the ambient temperature flanged ball valve after the gasifier, and all valves required to be opened in the pressure regulating system.

When the gas supply rate is less than 1000-2000 Nm3/h, a single storage tank can meet the gas supply requirements.

5. Flow rate:

5.1 When the tank pressure reaches more than 0.15 MPa above the discharge pressure, slowly open the liquid outlet valve to initiate the gas supply operation.

5.2 Record the liquid storage tank number and the start of gas supply.

5.3 Pay close attention to the liquid level, pressure changes, and flow and pressure variations at the exit when supplying gas.

1.2.4 LNG Tank Self-pressurization Operation Procedure

During manual operation, open the valves: the boost liquid phase valve, the boost gas phase bypass valve, and the vaporizer inlet valve, allowing LNG to flow directly into the self-boosting vaporizer, where it is vaporized and then enters the LNG storage tank. At this point, closely monitor the pressure; close the boost liquid phase valve when the pressure in the LNG storage tank reaches the desired level.

Cautionary Notes:

During LNG tank operation, the liquid level must be maintained at ≤90% for the upper limit and ≥15% for the lower limit. (2) When manually operating the self-pressurization system, it is strictly prohibited to leave the site unattended.

(3) When the self-pressurizing system is in operation, the pressure-reducing system should be in the off state.

Cautionary Notes:

During the operation of the LNG tank, the liquid level must be ≥15%.

(2) No one is allowed to leave the scene during manual operation.

1.2.5 Risk Analysis and Countermeasures

During LNG tanker loading and unloading, operators should wear masks, antistatic work clothes, and frost-resistant gloves, etc.

Absolutely no movement of the vehicle is permitted during LNG tank truck unloading to prevent bursting the loading/unloading hoses, which could lead to significant LNG leakage.

When there is LNG in the pipeline, both ends of the valves cannot be closed simultaneously.

Keep hands and feet off of low-temperature pipelines and equipment.

Under no circumstances shall moisture, oil, mechanical impurities, etc., enter the pipeline to avoid blockages.

No hammering, fire drying, or water spraying on the frozen areas.

To ensure the safety of the working environment, operators must wear protective gear properly. Static electricity from the human body must be neutralized before entering the station. Open flames are strictly prohibited within the station's operational area, as well as the use of non-explosion-proof tools and electronic devices.

Strictly adhere to the operation ticket system, follow the steps outlined in the operation ticket, and require at least two on-site operators: one to perform and one to supervise, ensuring operational safety.

Conduct safety education before operation, implement on-site safety precautions effectively. In case of danger, know how to evacuate and control the situation.

1.2.6 LNG Tank Maintenance and Care Procedures

LNG station operation technicians must be familiar with the structure and principles of the storage tanks and strictly follow the operational procedures for all LNG-related activities.

LNG operation technicians must be familiar with the performance and principles of storage tank accessories (pressure gauges, level indicators, temperature gauges, vacuum gauge valves).

The outer shell of the Liquefied Natural Gas storage tank is an external pressure vacuum vessel; welding operations are strictly prohibited under negative pressure. 4. Regularly inspect the outer shell of the storage tank for signs of icing or frost formation. Upon discovery of icing or frost, report it immediately to the on-duty supervisor and station master. The on-duty supervisor or station master should immediately contact the manufacturer to identify the cause and handle it promptly. During the process, closely monitor any changes in the icing or frost. If there is a tendency for the accident to escalate, immediately proceed with tank draining or stop the filling operation, and close the relevant emergency shutdown valves at the inlets and outlets.

Regularly inspect the storage tank's connecting pipes and valves, observe for any frost formation, and report any issues to the on-duty supervisor immediately. The on-duty supervisor will then arrange for personnel to address the situation.

Regularly inspect the pressure gauge, level gauge, and thermometer of the storage tank to ensure the displayed values are normal. 7. Regularly check the sealing performance and operation of the valves connected to the tank to ensure proper functioning.

Regularly calibrate safety valves, pressure gauges, level indicators, and thermometers according to regulations, ensuring proper operation and updating equipment records in a timely manner.

Regularly perform anti-corrosion treatment on the outer shell of storage tanks and carry out appearance cleaning and maintenance for the pressure gauges, level gauges, and thermometers on the tanks.

Regularly perform rust removal and anti-corrosion treatment on the easy-to-rust areas of storage tanks, such as pressure and level control instruments' three-way valves.

11. Perform annual or as-needed vacuum level inspections on the storage tanks to monitor their operational status.

Jiangxi 60-cubic-meter LNG Storage Tank, Hunan 100-cubic-meter Natural Gas Storage Tank, 30-cubic-meter LNG Storage Tank Price

30, 60, and 100 cubic meter LNG storage tanks, LNG gasification station, and CNG filling station process and equipment selection

I. LNG, CNG, LPG - meanings

CNG: Compressed Natural Gas, referring to natural gas compressed to 20MPa and stored in high-pressure cylinders. Vehicles that use this as fuel are known as CNG cars. High-pressure, normal temperature storage for steel cylinders: 20MPa.

LNG: Liquefied Natural Gas is formed by cooling natural gas to -162℃ through a deep-chilling process. It is stored in low-temperature storage tanks, and cars that use it as fuel are known as LNG vehicles. Cylinders are stored at low pressure and low temperature: 1.6 MPa.

The fueling, storage, and supply systems for LNG and CNG have certain differences, but natural gas eventually enters the car engine in a gaseous state after being pressurized through a pressure-reducing valve to 0.15 MPa for combustion and work.

LPG: Liquefied Petroleum Gas

Section 2: Uses of LNG Storage Tanks: Gasification Stations and Vehicle Fueling Stations

LNG Gasification Station

(1) Peak load and accident load regulation for urban pipeline gas supply

(2) Gas supply source for municipal gas networks in cities where natural gas pipelines have not been laid.

(3) Gas sources for community supply: Boiler gas and domestic gas supply

(4) Source for corporate gas supply; (Image)

2. Auto Gas Filling Station: Used for vehicle fuel

Section 3: Types of Gas Filling Stations for Vehicles:

LNG Fueling Station

1) Standard Station: Located at a fixed site, LNG is unloaded using unloading equipment, filled into storage tanks, and refueled into vehicles using fueling machines. (Image)

2) Mobile Filling Station: Equips related equipment and devices for gas stations onto trucks or skids, highly integrated for easy transportation and relocation, suitable for smaller-scale filling stations. (Image)

2. CNG Vehicle Filling Station

3. L-CNG Vehicle Gas Filling Station