& nbsp; Metal hose is a pipe fitting for conveying various fluids with corrugated pipe as the core element. Its working nature plays a compensation role in the connection between pipeline and pipeline, pipeline and equipment, and equipment and equipment. The metal hose uses its bending disturbance to make up for the position deviation caused by the installation of the pipeline system and to bear the relative displacement required by the extraordinary work of the two break contacts. The bellows flexible element of either structure has the following functions: < br / > & nbsp; 1. Carry out installation displacement deviation compensation, especially angular displacement compensation in low frequency range< br /> & nbsp; 2. Displacement attenuation compensation in full frequency range can be carried out< br /> & nbsp; 3. Support the load transmitted by the engine to the exhaust system to reduce the impact on the muffler< br /> & nbsp; 4. Isolate the vibration transmitted by the generator to the exhaust system to further reduce vibration and noise< br /> & nbsp; 5. It can slow down the impact and protect the purifier< br /> & nbsp; 6. Due to the dimensional change of exhaust branch pipe caused by high temperature, the flexible element can be thermally compensated< br /> 1. Application of metal hose in petrochemical storage tank < br / > & nbsp; 1) The anti-seismic metal hose of the storage tank is mainly used for the soft connection between the inlet and outlet of the storage tank and the pipeline, to compensate for the decline of the tank foundation, the thermal expansion and cold contraction of the tank system, the installation deviation during construction, and to avoid the secondary disasters caused by the damage of the tank and pipeline in the event of an earthquake< br /> & nbsp; 2) The central drainage metal hose of the storage tank floating roof replaces the original rotary joint folding drainage pipe and the inlet central drainage hose in order to remove rain, snow and other sundries on the storage tank floating roof& nbsp;< br /> 2. Application of metal hose in Petrochemical Wharf < br / > & nbsp; 1) Metal hoses are used in the long-distance transmission pipeline of the fixed trestle, mainly to compensate the thermal expansion and cold contraction of the transmission pipeline, and to compensate the settlement of the foundation between the fixed trestle and the bank end and the deviation of construction and installation< br /> & nbsp; 2) Metal hoses shall be installed between the fixed approach bridge and the movable approach bridge, and between the movable approach bridge and the barge to effectively compensate the displacement caused by the fluctuation of river (SEA) surface and the movement of the barge caused by river (SEA) waves< br /> & nbsp; 3) Metal hoses are used as soft connections between, oil tankers and other chemical carriers and the wharf< br /> & nbsp; 4) The use of vacuum jacketed hose can effectively solve the transportation of low-temperature media< br /> 3. Metal hose shall be used for transportation filling system & nbsp< br /> & nbsp; The metal hose is used as a soft connection for filling oil or other liquid loading and unloading devices in trains and automobile tanks. It has the advantages of soft pipe body, small bending radius, strong torque resistance, long service life, safety and reliability < br / >