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Mobile WebSiteMetal hose principle:
The installation stress of the pipeline is complicated in the pipeline system. Due to the limitation of the space position conditions, the installation work is difficult: the formed pipe cannot be installed; the bend, the over, and the fitted pipe will not be available. Avoid localized cold correction. Depending on the pipe diameter and the specific conditions on site, the amount of cold correction ranges from a few millimeters to tens of millimeters, and some hundreds of millimeters. Practice has proved that the larger the amount, the higher the internal stress, and the installation stress of these residues in the pipeline system is undoubtedly extremely invisible. A section of the bearing lubricant pipe in a certain type of engine has many fracture accidents in actual operation, which is caused by excessive installation stress. Because it can be bent at will and the internal stress generated by bending under the rated bending radius is very small, it can bring great convenience to the installation work and also guarantee the safe operation of the pipeline system. This is the main reason why some piping systems must use metal hoses. Compensation Pipe Position The movable cylinder on the vulcanizer will move in the upward and downward directions due to the need to load and unload the mold. After the copper serpentine tube reciprocates many times, fatigue fracture occurs, although it can be used after repair, but the parking repair will cause time loss. Although the rubber tube has good softness and strong anti-fatigue ability, it is also a weak link in terms of pressure, temperature resistance and anti-aging. It can not be continued after several months of use. The good overall performance of the metal hose is fully reflected here. In the general industrial field, in addition to pressure and temperature, there are often harsh conditions such as fatigue, corrosion, vibration, pressure, impact, etc. Under such circumstances, it is most suitable to compensate the positional movement of the pipeline. It’s gone. The metal hose absorbs vibrations in a giant building, and the air conditioning in the hall is provided by a 6FWB unit fixed in the basement. The vibration of the unit passes through the bridge connecting the pipe and is transmitted to the ground hall, with a noise value of 45dB. In such an environment, people always feel a sense of discomfort. After the design is improved, the metal hose is connected in series on the connecting pipe, which not only absorbs some of the noise generated by the vibration of the unit, but also the noise generated by the fluid pulsation in the pipe system is absorbed. At this time, the noise in the ground hall The value is only 33dB, which greatly improves the environment inside the hall. It absorbs vibration, which not only improves the fatigue and damage of the system, but also reduces the noise. That's why some piping systems use metal hoses.
Metal hose structure:
The metal hose is generally composed of three parts: a bellows, a mesh sleeve and a joint. The bellows is the body of the metal hose, which plays the role of flexibility; the mesh sleeve plays the role of strengthening and shielding; the joint acts as a connection. For different use requirements, the ways of connecting them are different: the bellows, the net sleeve and the joint are connected by welding, called welding type; they are connected by mechanical clamping, called mechanical clamping type. In addition, there are two methods described above, called hybrid. Metal hose products include oil suction hoses, steam hoses, sandblasting hoses, acid and alkali hoses, food hoses, oxygen hoses and various special hoses. Widely used in machinery, chemical, petroleum, metallurgy, food and other industries. What is the pressure range of the pressure-resistant metal hose: the pressure range of the hose is generally PN0.6 - 32.0Mpa. Up to 42.0MPa. The metal hose is the main pressure-bearing part of the hose installed in the pressure pipeline, and at the same time, the bellows is sheathed. According to the pressure in the pipeline and the application place, one or more layers of stainless steel wire or steel strip can be selected. Weaving
