Why does the Stainless Steel Hose Burst?
The stainless steel bellows hose is composed of three parts: corrugated pipe, net sleeve and joint, and its main body is corrugated pipe. The bellows itself has good flexibility, and because it is made of stainless steel, it has good corrosion resistance and temperature stability; the mesh sleeve plays a reinforcing role and is the skeleton of the stainless steel hose, so that the metal hose has Certain carrying capacity. Stainless steel hose is an important component in the connecting pipeline of modern industrial equipment. The product specifications are diverse. Among them, the small diameter stainless steel hose (inner diameter 3mm-25mm) is mainly used for the protection of the sensor circuit of the precision optical ruler and the protection of the industrial sensor circuit.
The use reliability of stainless steel hose is relatively high, and bursting accidents are unlikely to occur during use, but unreasonable factors in use will likely form a hidden danger of bursting. For example, the metal hose on the high-pressure water descaling device often bursts during production In accidents, the rupture is often around the joint of the stainless steel hose. The stainless steel hose bursts during production due to the following factors:
- According to the knowledge of fluid mechanics, when water flows in a pipeline at a speed in a pressure pipeline, suddenly closing or opening the valve in the pipeline will cause the flow velocity of the water in the pipeline to change drastically. It will inevitably cause the rise or fall of the water pressure in the pipeline, accompanied by the sound of water hammering. This is the “water hammer phenomenon”.
- The stainless steel hose is downstream of the valve. When the valve is suddenly closed, the downstream water will continue to flow forward due to inertia and a partial vacuum appears, causing the water pressure in the pipe to drop greatly. The bellows, which is a stainless steel hose body, has a certain elasticity and a thin wall thickness (generally 0.15-0.50nlln), so the bellows will shrink; when the valve suddenly opens When the water flows, the pressure of the water in the pipeline rises sharply, and the stainless steel hose is forced to expand. As the valve continues to open and close, the pressure of the water flowing through the stainless steel hose also changes periodically, and the frequency of the water pressure pulsation coincides with the expansion and contraction rate of the stainless steel hose.
Therefore, during the use of stainless steel hoses, care should be taken to avoid sudden closure or opening of pipeline valves. The metal hoses produced by our company are produced in strict accordance with the standards. We hope that our customers can correctly use stainless steel hoses after understanding the cause of the metal hose bursting to avoid bursting.
