500L Horizontal Liquid Oxygen Dewar Cylinder

500L Horizontal Liquid Oxygen Dewar Cylinder

Introduction:

The Horizontal Liquid Oxygen Dewar Cylinder is a state-of-the-art solution designed for the efficient filling, storage, and transportation of liquid oxygen. This versatile product finds extensive applications across various sectors including industrial manufacturing, healthcare, and military operations. Crafted with precision, the inner and outer liners of the cylinder are constructed from high-grade 304 stainless steel, utilizing advanced numerical control automatic welding technology. This ensures a seamless and robust external weld, enhancing both aesthetic appeal and structural integrity. The cylinder boasts numerous advantages such as ease of transport, energy efficiency, safety, reliability, purity assurance, and adaptability. Our production process is fully automated, and each unit undergoes rigorous testing, including static evaporation rate tests, liquid filling tests, gas tightness tests, and cylinder pressure tests, to guarantee superior quality.

Product Specifications:

The Horizontal Liquid Oxygen Dewar Cylinder is available in various models including DPL450-100-2.3, DPL450-195-1.37, and DPL450-210-2.88, catering to diverse needs in medical, chemical, electronic, and industrial welding sectors. Primarily used for the filling, storage, and transportation of liquid oxygen, these cylinders employ argon arc welding and other advanced welding techniques, ensuring both beauty and reliability. All Runfeng Industry products utilize S304 stainless steel for the inner liner, adhering to food-grade standards for safety. Our stringent quality control processes ensure that every product meets high standards of quality and performance.

Key Features:

High Vacuum Insulation Technology: Enhances thermal efficiency and cost-effectiveness.
Ultrasonic Fault Detection: Ensures high-quality inspection and reliability.
Integrated Level and Pressure Gauges: Facilitates easy monitoring and control.
Premium Pressure Relief Valves: Ensures safety and durability.

Technical Parameters:

Full Volume: 80L/100L/175L/195L/210L/232L/410L/500L/1000L
Work Pressure: 1.37MPa/2.3MPa/2.88MPa/3.45MPa
Inner Tank Design Temperature: -196℃
Shell Tank Design Temperature: -20℃ to +50℃
Insulation: Vacuum with Multi-layer Wrapping
Stored Medium: LO2, LN2, LAr, LCO2, LNG
Inner Tank Material: SS304 08 or SA240
Shell Tank Material: Q345R or SS304 08

Certifications:

Our products comply with international standards and hold certifications such as ASME VIII DIV.1, CE PED/TPED, Russia EAC, China GB, ISO9001:2015, ISO13485:2016, ISO14001:2015, and ISO45001:2018.

Detailed Product Information:

Overall Dimensions and Technical Parameters:

Type	Nominal Volume (L)	Working Pressure (MPa)	Empty Weight (Kg)	Maximum Theoretical Liquid Filling Capacity (Kg)	Gas Cylinder Size (mm)	Safety Valve (MPa)	Rupture Disk (MPa)
LNG	LO2	LN2	LAr	LCO2
DPL Series - Vertical Cylinders	80	2.3	31	87	62	107	84	φ516*907	2.41	3.6
100	2.3	95	38	120	77	133	105	φ516*1037	2.41	3.6
175	1.37	116	67	190	135	233	183	φ516*1507	1.59	2.4
2.3	133	2.41	3.6
2.88	146	3.45	5.17
3.45	164	4.14	5.17
195	1.37	125	75	212	150	260	204	φ516*1632	1.59	2.4
2.3	145	/	2.41	3.6
2.88	158	3.45	5.17
3.45	185	4.14	5.17
210	1.37	135	81	228	162	280	220	φ516*1717	1.59	2.4
2.3	150	/	2.41	3.6
2.88	166	3.45	5.17
3.45	191	4.14	5.17
232	1.37	148	/	252	/	/	/	φ516*1910	1.59	2.4
410	1.37	325	157	/	/	/	/	8908701770	1.59	/
450	1.37	/	488	345	599	471	8908701850	1.59	/
2.3	370	2.41	3.6
3.17	425	3.45	5.17
500	1.37	360	192	542	384	665	523	8908702000	1.59	/
2.3	407	/	2.41	3.6
3.17	448	3.45	5.17
1000	2.3	1033	/	/	454	904	891	φ1200*2182	2.6	3.6
3.45	297	764	828	4.0	5.4
DPW Series - Horizontal Cylinders	410	1.59	342	158	/	/	/	/	18508201020	1.9	2.4
499	1.59	353	192	541	383	664	522	21008201020	1.9	2.4
2.1	406	/	2.86	3.6
2.5	420	2.86	3.6
3.45	510	4.15	5.17
1000	1.59	585	/	1664	1330	1882	/	210011721400	1.9	2.4

Note: The maximum filling capacity is calculated based on the boiling point of the liquid under normal atmospheric pressure. The actual filling capacity is influenced by the liquid temperature and pressure inside the container, typically around 95% of the maximum theoretical filling capacity, and approximately 90% for natural gas.

Construction and Design:

The Dewar cylinder features an inner tank and outer shell made of stainless steel, with a stainless steel inner tank support system that enhances strength and minimizes heat loss. A thermal insulation layer between the inner tank and outer shell, combined with multi-layer insulation materials and high vacuum, ensures extended liquid storage duration.

Built-in Vaporizer and Supercharger:

A built-in vaporizer converts cryogenic liquid into gas, while the built-in supercharger maintains a stable pressure, enabling rapid and consistent usage. Each insulated gas cylinder is equipped with a stainless steel ring structure (protection ring) to safeguard the pipeline. The protective ring is connected to the cylinder with four slotted brackets, facilitating the use of trolleys and cranes for transportation.

Operational Convenience:

All operational components are conveniently located on the top of the cylinder, allowing for easy control. In an independent use environment, users can effectively manage the process through the discharge valve, booster valve, pressure gauge, and liquid phase valve.

Safety Mechanisms:

To ensure the inner liner remains below safe pressure levels, each cylinder is equipped with a safety valve and a rupture disk.

Advantages:

Low Heat Loss and High Strength: The stainless steel support system minimizes heat loss and enhances strength.
Ease of Use: Designed for single-person operation.
Large Storage Capacity: A DP175 Dewar cylinder can store gas equivalent to more than 18 standard high-pressure gas cylinders.
Low Pressure Rise Rate: The high-performance insulation system ensures minimal pressure rise during the deactivation phase, often eliminating the need for pressure reduction via the safety valve.
Continuous Supply: The built-in supercharger and vaporizer enable continuous gas or liquid supply without the need for an external vaporizer within the designed dosage.

Special Notes:

Natural Gas Filling: Use double safety valves and eliminate the rupture disc in the inner tank.
Pressure Regulation: Adjusting the top screw of the combined pressure regulator does not accelerate pressurization. Improper adjustment can damage the valve.

Combination Pressure Regulating Valve:

This valve serves dual functions of pressure regulation and air conservation. It converts cryogenic liquid into saturated vapor, maintaining a stable pressure within the cylinder. During gas use, it preferentially discharges high-pressure gas to prevent loss through the safety valve.

Gas Use Valve:

Connected to a built-in vaporizer, this valve provides vaporized gas and requires a CGA fitting compatible with the supplied gas.

Inlet and Outlet Valve:

Controls the loading and unloading of cryogenic liquid, allowing users to connect to the CGA connector for filling and discharging.

Booster Valve:

Manages the built-in booster circuit, enabling pressurization of the cylinder when opened.

Drain Valve:

Connected to the gas phase chamber, this valve releases gas and reduces pressure when opened.

Pressure Gauge:

Displays the cylinder's pressure in psi or MPa.

Level Gauge:

A floating-rod spring type gauge that approximates the cryogenic liquid level, though accurate measurement requires weighing.

Safety Devices:

The cylinder liner includes a first-stage safety valve and a second-stage rupture disc to protect against overpressure. The safety valve releases pressure from normal heat leakage or accelerated heat leakage under fire conditions. If the safety valve fails, the rupture disc activates to ensure cylinder safety.

Additional Notes:

Natural Gas Filling: Use double safety valves and eliminate the inner tank rupture disc. Overpressure protection is provided by a vacuum plug.
Vacuum Plug: If the inner tank leaks, the vacuum plug opens to relieve pressure. Leakage destroys the interlayer vacuum, potentially causing "sweating" or frosting on the shell.
Warning: Never remove the vacuum plug under any circumstances.
Bursting Discs: These are single-use and must be replaced after activation. Replacement discs are available from our company.