Vacuum hose is not common in general people's lives, but it is undeniable that it has been around us, many places need vacuum hose, just we know it. For example, the hose used in the tank car. It is usually used for special occasions, generally need to maintain a vacuum state, connected to the vacuum pump and the need to maintain a vacuum state between the equipment, easy to use, take up little space, small radius, easy to bend, suitable for the system is more complex, vacuum hose usually has three layers, the middle layer of a special multi-layer adiabatic composite material, the upper and lower layers of the two layers of the soft stainless steel, can maintain a certain shape and hardness, the tube can be The hose can maintain a certain shape and hardness, and the tube can always keep a high vacuum state.
The physical principle of vacuum hose? The use of vacuum hose
First, the use of vacuum hose
Vacuum hose as a sensitive element, shock absorbing components, compensation components, sealing components, valve components, pipeline connectors, widely used in automatic control and measurement instruments, vacuum technology, machinery industry, power industry, transportation and atomic energy industry and other fields. The products are widely used in automatic control and measuring instruments, vacuum technology, mechanical industry, electric power industry, transportation and atomic energy industry.
Vacuum hose for different uses and choose different metal materials. Because of its material is different, so the performance of the processed metal bellows is also different.
Vacuum hose mainly consists of bellows part and two ends with the connection part of the composition (for one-time processing molding).
Vacuum hose pipe bad for the thin-walled stainless steel with welded pipe for wave processing and become, rich in flexible level of good temperature resistance. Pressure resistance. Applicable to air, steam, various industrial gases level water, oil, pharmaceuticals and other types of fluid media, the reciprocating motion of the pipe system, thermal expansion system to absorb, vibration absorption, piping center adjustment plays an important role.
Vacuum tube hose is mainly used in the use of: tanker charging, unloading process; storage tanks and cryogenic liquid equipment connection between the conversion; vacuum rigid tube and cryogenic liquid equipment between the conversion; other special technical and technological requirements of the place.
Second, the physical principle of the vacuum hose
The use of special customized double-layer stainless steel metal hose, sandwich in the special multi-layer adiabatic composite materials and to maintain a high vacuum state, the cold effect is good, the use of the process of the hose outside the surface of the sweat, not frost; inside and outside the tube between the use of thermal conductivity is very small support, the bending radius of a small, easy to use, the length can be customized according to user requirements. Easy to use, the length can be customized according to user requirements; can be connected with the vacuum pipe supporting.
Vacuum hose can be equipped with connecting flanges at both ends or special quick-fit fittings for storage tanks and tanker trucks to reduce the vaporization loss; special requirements of the vacuum hose can be customized.
Vacuum hose is very widely used both in life and industry, vacuum hose is a kind of tube, for the storage of vacuum hose must be avoided mechanical stress, including transitional stretching, compression or deformation, avoid contact with sharp or pointed objects. Vacuum hoses are preferably stored on a suitable support, or placed on a dry ground, coils of packaged vacuum tubes must be placed horizontally for storage, vacuum hoses should not be placed on top of each other; if stacking can not be avoided, the height of the stack should not be made underneath the vacuum tube to appear permanent deformation. As a rule, try to avoid wrapping the vacuum hose around posts or hooks, and if the vacuum hose is shipped straight, it is recommended that it be stored horizontally without bending it. Vacuum hose has windable performance, good impact resistance, good pipe bending performance, at the same time has a high strength, rigidity, impact resistance, with a low coefficient of linear expansion and creep resistance similar to steel pipe.