Your Professional Dewar Cylinder Supplier
Weifang Hengsheng Gas Co., Ltd. is a Gas and Gas Cylinder company integrating distribution, wholesale and commercial services.Our company mainly produces and sells various industrial Gas and Gas Cylinder:Oxygen, Nitrogen, Carbon Dioxide, Mixed gas, Argon, Neon, Krypton, Helium, Hydrogen, etc;Propane, Acetylene, Sulfur Hexafluoride, Ethane, Ethylene, Liquid Ammonia, etc;Seamless Steel Cylinder, Seamless Aluminum Cylinder, Insulated Dewar Cylinder, Disposable Helium Cylinder, Carbon Fiber Cylinder; LNG Cylinder, LPG Cylinder, Acetylene Cylinder, Liquid Ammonia Cylinder, etc.
Why Choose Us
Certification
Our company has obtained ISO9001 quality management system certification, ISO45001 occupational health and safety management system certification, etc.
Rich Experience
Having worked for many years, the company has a complete range of gases, advanced service facilities and standardized enterprise management. It has professional technical management personnel and excellent quality staff.
Professional Equipment
We have professional production equipment and testing equipment. We attach great importance to quality management and occupational health. At the same time, we has obtained a number of invention patents, providing a solid backing for the company's technical development and protection.
Technical Advantages
The feed gas used for preparing the standard gas shall be high-purity gas, and the relevant components shall be purifed with purification equipment to ensure that the products provided meet the technical requirements of users.
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Types of Dewar Cylinder
Vehicle CNG Dewar Cylinder
Dewar cylinder is a kind of high-performance vacuum insulated cylinder, which is used to store and transport cryogenic liquid oxygen, nitrogen, argon, carbon dioxide, liquefied natural gas, etc. It can be used for road transportation of cryogenic liquid, and also can be used for on-site storage and supply. Long storage time, wide range of applications.
Liquid Helium Dewar Cylinder
Dewars are mainly used to store and transport liquid oxygen, liquid nitrogen, liquid argon and liquefied natural gas. The gas cylinder is designed as a double-layer (vacuum) structure. The inner box is used to store cryogenic liquids.
Industrial Dewar Cylinder
Our industrial dewar flask is a double-layer container, the inner layer is used to store cryogenic liquids, and the outer layer is used for insulation and protection. The interior is usually filled with a vacuum layer or insulation material to minimize heat transfer, thereby keeping the liquid inside cold. This design enables the industrial dewar flask to keep the liquid cold for a long time without frequent refilling or re-cooling.
Advantages of Dewar Cylinder
Excellent material
Dewar flasks are usually made of high-strength stainless steel. Stainless steel has excellent mechanical strength and corrosion resistance, and can withstand the pressure brought by the internal cryogenic liquid and various external shocks and vibrations. Stainless steel dewar flasks can withstand working pressures up to 2.88MPa.
Excellent thermal insulation performance
Dewar flasks use advanced multi-layer vacuum insulation technology, which greatly reduces heat transfer. Under normal temperature conditions, our industrial dewar flasks can keep the evaporation rate of cryogenic liquids (such as liquid nitrogen) stored inside below 2.0%. This means that even after a long period of storage, the loss of cryogenic liquids can be minimized and the cost of use can be reduced.
Applicable to a variety of cryogenic liquids
Dewar flasks can store and transport a variety of cryogenic liquids, such as liquid oxygen, liquid nitrogen, and liquid argon. Different cryogenic liquids have different physical properties and application fields, but dewar flasks can provide safe and reliable storage and transportation solutions for them.
Multiple safety devices
Dewar flasks are equipped with multiple safety devices such as safety valves, bursting discs, and pressure sensors. When the pressure inside the bottle exceeds the set value, the safety valve will automatically open to release the pressure and prevent the bottle from exploding.
Application of Dewar Cylinder
Chemical Industry
In the chemical industry, dewar flasks can be used to store and transport various cryogenic liquids, such as liquid oxygen, liquid nitrogen, liquid argon, etc. These cryogenic liquids can be used as chemical raw materials or reaction media in various chemical production processes. Liquid oxygen can be used for oxidation reactions, liquid nitrogen can be used for freeze drying and cryogenic crushing, and liquid argon can be used for protective gas and welding, etc.
Medical Equipment Cooling
In the medical field, dewar flasks are mainly used to store and supply liquid helium and liquid nitrogen. Liquid helium and liquid nitrogen can be used to cool medical equipment, such as magnetic resonance imaging (MRI) equipment, linear accelerators, etc. In MRI equipment, liquid helium is used to cool superconducting magnets, enabling them to generate strong magnetic fields for imaging of human tissues. In linear accelerators, liquid nitrogen can be used to cool accelerating tubes to improve the performance and stability of accelerating tubes.
Electronic Manufacturing
In the electronics manufacturing industry, dewar flasks are mainly used to store and supply liquid helium. Liquid helium is an ultra-low temperature liquid with a boiling point of -268.9℃. Liquid helium can be used to cool superconducting materials and electronic devices, allowing them to operate at extremely low temperatures, thereby improving their performance and stability.
Metalworking
In the metalworking industry, dewar flasks are mainly used to store and supply liquid nitrogen. Liquid nitrogen can be used to cool and quench metals, which can significantly increase the hardness and strength of metals. In steel production, liquid nitrogen quenching can increase the hardness of steel several times, while also improving the toughness and wear resistance of steel.
High pressures can be generated inside sealed dewars, generating a potential risk of explosion. In order to avoid this, some dewars allow the gas to escape through an open top, while others require pressure-relief valves.
If a cryogenic dewar is left open for too long, it can generate condensation or freezing, potentially translating into contaminants, pressure build ups or risk or explosion.
A gas escape might also mean asphyxiation hazard if the place is not properly ventilated. This is why containers must always be stored in a well-ventilated area.
Information and caution labels must be installed in order to inform users of potential hazards.
Technicians must wear the recommended PPE at all times when handling and filling the container, in order to minimize risks.
Valve connections must be installed specifically to meet the needs for this sort of system
Adaptors are not to be used
The area should be a non-smoking one
The installation of O2 monitors is recommended
Valves must be opened slowly
When the container must be manipulated or moved, preventive actions must be taken: two people should move it and wheels or specifically-designed dollies should be considered. At the same time, liquid containers shouldn't be accompanied while transported in an elevator, and the container mustn't be lifted from the protection ring.
FAQ
We're well-known as one of the leading dewar cylinder manufacturers and suppliers in China. If you're going to buy high quality dewar cylinder with competitive price, welcome to get more information from our factory.
Dewar Cylinder