Spring hanger, hanger, Huaneng pipeline equipment diagram

Spring hangers in addition to meeting the various functional requirements, but also want it to have sufficient strength in the working conditions and lifetime use does not produce any permanent deformation, but should also be light weight, small size, easy to manufacture and low prices. Some of these conflicting requirements, such as requiring sufficient strength tends to cause weight gain and increase in cost. Sometimes to fully meet these requirements is difficult. Therefore, in spring hanger design should first meet the functional requirements, followed by strength requirements, and finally on account of its economy. Usually spring hanger design steps should be: according to the requirements of use, select suitable spring shape, type and end structures. According to the given spring hanger position for example to allow the maximum diameter, minimum diameter, free height and deformation amount of the coil spring; plywood spring length, width _ the number plate, arc deflection and free state Higher) fix a spring contour size. Depending on conditions (such as temperature, ambient media, magnetic requirements for selecting suitable materials according to the load characteristics of the spring hanger conditions of use (for example, static load, dynamic load or impact load, repeated load or vibration loads, etc. ) determine the allowable stress, calculate a variety of specific geometric parameters of the spring and the manufacturing method includes a heat treatment procedure, including, where two of the plumbing system in spring specified requirements have not changes, so spring allowable stress design workers hanger spring material primarily choose to determine the allowable stresses calculate various specific geometry and manufacturing methods, the Wei material means spring hangers in a specified condition without fail the maximum allowable stress the long-term use. both errors may occur in the spring hanger spring material dimensions and winding molding, so the actual characteristic curve often associated with the calculation is not exactly the same, so the characteristic requirements Strict spring, as governor spring must undergo repeated tests and modifications related to the size parameter, before mass production. Most spring hanger pipeline equipment must withstand cyclic loads, so if the frequency of load and spring natural frequency coincides with or close to, it will have resonance, so that stress increases rapidly, serious or even cause the child to produce spider spring break early, so pay attention to the spring of the first-order natural frequency of the spring design (sometimes pay attention to the second and third frequencies) can avoid the frequency of the load in the design of high-speed impact load by the spring, but also must pay attention to the impact of pipeline equipment flutter spring strength. variable pitch and adjustable coil spring, due to the stiffness value is changed, especially adjustable spring, due to self-oscillation frequency of each ring are not the same, and therefore eliminate or mitigate resonance especially flutter more effective.