Operating specifications and scope of liquid oxygen storage tanks

< 1. Operating Standards for Liquid Oxygen Storage Tanks 1. The actual operating personnel of liquid oxygen storage tanks should understand the production process, machinery and equipment, and knowledge of ultra-low temperature liquids. They should regularly check the pressure gauge, liquid level transmitter, and various safety devices. Storage should not be carried out under unreliable preventive measures, especially to avoid the gate valve being frozen and stuck.

2、 The gas body of the inflatable seal should be dry N2 and cannot be terminated, so that its internal working pressure is maintained above 0.01 MPa.

3、 It is strictly prohibited to use liquid oxygen storage tanks with working pressures exceeding the set working pressure. The acetylene gas composition in liquid oxygen should be checked weekly, and liquid oxygen should be discharged if it exceeds 0.1ppmm.

4、 Liquid oxygen storage tanks are prohibited from being filled, and the vapor must be stored indoors. Therefore, it is required that liquid oxygen should not exceed the geometric capacity of the storage tank, and the liquid level gauge should not exceed 90%. 5. The pressure gauge, vacuum gauge, liquid level transmitter, alarm equipment and their valves should be calibrated on time, and they should be flexible, reliable and effective,.

6、 The water level of the vaporizer should not be less than the standard value, and the temperature is generally controlled around 60 ℃. The vaporizer should be equipped with an alarm for low outlet temperature and a liquid oxygen pump parking protector. The outlet CO2 temperature of the vaporizer should be above 0 ℃.

7、 When freezing and cleaning machinery, pipelines, and gate valves, use hot N2 or gas at 70-80 ℃ to lift the freeze. It is strictly prohibited to knock, burn, or use electric heaters.

8、 To avoid liquid oxygen leakage and freezing equipment, it is not necessary to let ultra-low temperature liquids come into contact with the skin, which can cause severe freezing.

9、 It is strictly prohibited to have high temperature or hot source close to the liquid oxygen storage tank and ultra-low temperature liquid pipeline, and flammable and explosive materials close to them. Fire or flames are not allowed within 30mm of the liquid oxygen storage tank, and equipment must be used.

< Characteristics and Application Range of LO2 Horizontal Low Temperature Storage Tank

LO2 Horizontal Low Temperature Storage Tank is a double-layer fixed vacuum powder insulated storage tank (storage tank). The inner lining is made of stainless steel (with 16MnDR for carbon dioxide storage tanks), and the inner lining is made of Q235B or 16MnR. The surface coating adopts processes such as sandblasting, cleaning, and spraying, and uses a two-component curing liquid coating.

Scope and Characteristics

LO2 horizontal low-temperature storage tank is mainly used for low-temperature liquid storage of gases such as liquid oxygen, liquid nitrogen, liquid argon, carbon dioxide, etc.

. One cubic meter of liquid in LO2 storage tank can replace 130 gas cylinders, and can also replace daily transportation with gas cylinders, saving a lot of manpower and material resources. Widely used in gas industry, metal smelting and other gas consuming users, it is a relatively good product for achieving centralized gas supply. It has the characteristics of long service life, compact structure, small footprint, centralized control, and easy operation. The characteristics and main use of LO2 horizontal low-temperature storage tank are storage pressure vessels for liquid oxygen, providing high-purity gas for steel mills, gas production plants, food and beverage industries, welding and other industries. Compared to using high-pressure steel cylinders for inflation, it reduces gas costs. The storage containers currently chosen by various industries. LO2 horizontal low-temperature storage tanks have the characteristics of long service life, compact structure, small footprint, centralized control, and easy operation and maintenance. It is a double-layer fixed vacuum powder insulated low-temperature storage tank. The inner lining is made of stainless steel, and the inner lining is made of Q235B or 16MnR. The surface coating of LO2 horizontal low-temperature storage tank adopts processes such as sandblasting rust removal, blowing, and spraying, and uses a two-component curing liquid coating.

In the interlayer between the inner liner and the inner liner, hot state pearl sand is selected as the insulation material and vacuum is applied.

. The upper part of the inlet is equipped with a pressure gauge and a combined differential pressure level gauge, which can monitor the storage capacity at any time, facilitate filling and discharging operations, and enable timely observation of pressure changes in the LO2 horizontal low-temperature storage tank. This container is a storage pressure vessel used to store liquid oxygen, liquid nitrogen, liquid argon, carbon dioxide, and other media. Currently in the domestic technological stage. Provide high-purity required gases for steel mills, gas production plants, food and beverage industries, welding and other industries. Compared to using high-pressure steel cylinders for inflation, it reduces gas costs. It is currently the preferred liquid storage container for various industries. The main purpose of LO2 horizontal low-temperature storage tank is to facilitate users who use gases such as liquid oxygen, liquid nitrogen, liquid argon, carbon dioxide, etc. at low temperatures. Due to its ability to replace over 130 gas cylinders with 1 cubic meter of liquid oxygen, it has a large storage capacity, saves intermediate transportation links, and also saves manpower and material resources. It has the characteristics of low risk coefficient, long service life, and small space occupation. Its storage capacity ranges from 5 cubic meters to 100 cubic meters, with a working pressure of 2.2 megapascals, and it has been widely used in industrial production and daily life. Mainly used for gas companies, large steel mills and ironworks in various provinces and cities.

How to use LO2 horizontal low-temperature storage tanks? General staff should pay attention to several issues:

1. The warehouse must be equipped with electrostatic conduction grounding devices and lightning protection devices.

. 2. Pressure gauges should be checked regularly, and valves must be made of stainless steel.

3. Wear clothes without static electricity effect and shoes with metal.

. 4. Liquid oxygen should not splash onto unprotected skin. Although the internal measures of LO2 horizontal low-temperature storage tanks are in place, they are still flammable and explosive materials.