500L Horizontal Liquid Oxygen Dewar Cylinder

500L Horizontal Liquid Oxygen Dewar Cylinder

Product Overview

The horizontal liquid oxygen Dewar cylinder is a specialized container designed for the efficient filling, storage, and transportation of liquid oxygen. It finds extensive applications across various sectors including industrial manufacturing, healthcare, and military operations. Constructed with precision, the inner and outer liners of the cylinder are crafted from high-grade 304 stainless steel, utilizing advanced numerical control automatic welding technology. This ensures a seamless and robust external weld, enhancing both the aesthetic appeal and structural integrity of the cylinder. Key benefits include ease of transport, energy efficiency, safety, reliability, purity assurance, and adaptability to diverse environments. Our production process is fully automated, with each unit undergoing rigorous testing protocols such as static evaporation rate tests, liquid filling tests, gas tightness tests, and cylinder pressure tests to guarantee superior product quality.

Product Specifications:

The horizontal liquid oxygen Dewar cylinder is available in multiple models including DPL450-100-2.3, DPL450-195-1.37, and DPL450-210-2.88, catering to a wide range of applications in medical, chemical, electronic, and industrial welding sectors. The cylinders are primarily used for the containment and transport of liquid oxygen. Employing argon arc welding and other sophisticated welding techniques, these cylinders are not only visually appealing but also highly durable and reliable. All products from Runfeng Industry are manufactured using S304 stainless steel for the inner liner, adhering to food-grade standards to ensure safety. The quality inspection process is meticulously controlled to ensure that every cylinder meets the highest standards of quality and performance.

Key Features:

Advanced Vacuum Insulation: Utilizes high vacuum insulation technology to enhance cost efficiency.
Quality Assurance: Incorporates ultrasonic fault detection for superior quality control.
Monitoring Systems: Equipped with level gauges and pressure gauges on all tanks for precise monitoring.
Safety Mechanisms: Features renowned brand pressure relief valves for enhanced safety.

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 various international standards including ASME VIII DIV.1, CE PED/TPED, Russia EAC, China GB, ISO9001:2015, ISO13485:2016, ISO14001:2015, and ISO45001:2018.

Detailed Product Information:

Dimensions and Technical Parameters:

Overall Size and Main 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）
Type	Nominal volume (L)	Working pressure (MPa)	Empty weight （Kg）	LNG	LO2	LN2	LAr	LCO2	Gas cylinder size （mm）	Safety valve （MPa）	Rupture disk （MPa）
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
	1000	3.45	1033	/	/	297	764	828	φ1200*2182	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 Insulation:

The Dewar cylinder's inner tank and outer shell are constructed from stainless steel, with the inner tank support system also made of stainless steel to enhance strength and minimize heat loss. A thermal insulation layer is positioned between the inner tank and the outer shell, utilizing multi-layer insulation materials and high vacuum to prolong liquid storage duration.

Built-in Features:

Vaporizer: Converts cryogenic liquid into gas.
Supercharger: Increases pressure to a predetermined level and maintains stability during use, ensuring rapid and consistent performance.
Protection Ring: A stainless steel ring structure safeguards the pipeline, connected to the cylinder with four slotted brackets for easy handling with trolleys and cranes.

Operational Components:

All operational parts are conveniently located on the top of the cylinder for easy access. In an independent use environment, users can effectively manage the process through discharge valves, booster valves, pressure gauges, and liquid phase valves.

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.
High 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 a 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: Utilize double safety valves and omit the rupture disc in the inner tank.
Pressure Regulation: Adjusting the top screw of the combined pressure regulator does not accelerate pressurization. Unauthorized adjustments can damage the valve.

Combination Pressure Regulating Valve:

This valve serves dual functions of pressure regulation and air conservation. It facilitates the conversion of cryogenic liquid into saturated vapor, maintaining continuous and stable pressure within the cylinder. It also prevents gas loss by discharging excess pressure through the valve, operating automatically without manual intervention.

Gas Use Valve:

Connected to a built-in vaporizer, this valve allows for the extraction of vaporized gas, requiring a CGA fitting compatible with the container's gas supply.

Inlet and Outlet Valve:

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

Booster Valve:

Manages the built-in booster circuit, allowing 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 provides an approximate indication of the cryogenic liquid level, though accurate measurement requires weighing.

Safety Devices:

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

Special Considerations:

Natural Gas Filling: Use double safety valves and eliminate the rupture disc in the inner tank. Overpressure protection is provided by a vacuum plug.
Vacuum Plug: If the inner tank leaks, the vacuum plug opens to relieve pressure. Leakage may cause "sweating" or frosting of the shell, though frost or condensation at the tube end is normal.
Warning: Never remove the vacuum plug under any circumstances.
Bursting Discs: These are single-use components and must be replaced after activation. Replacement discs are available from our company.