Constant spring hangers Huaneng Pipeline Equipment spring hanger

Preparation of spring hanger construction drawing budget, belong to the engineering technology of the economy, it is the actual performance of the current implementation of national economic policy. Therefore, the required spring hanger construction preparers must strictly abide by the existing hanger construction policies and regulations, improve the professional and ethical standards, and enhance the sense of responsibility, to strengthen the business to learn. Expanding spring hanger business knowledge, establish the concept of seeking truth from facts, a reasonable reflection spring hanger project cost, prevent overestimate the risk calculation, assuming a mess quotas and other bad consciousness. In preparing the spring hanger installation project budget, to be familiar with design drawings, control the construction process, thorough spring hanger installation construction site, to understand the calculation basis, to ensure that the project budget to achieve "timely, accurate and reasonable" requirements. Based primarily on spring hanger construction drawings budgeting spring hanger construction in order to play its due role in drawing budget preparation spring hanger installation budget must be accurate, reasonable, work is meticulous technical requirements are calculated on the basis foundation, visibility, legitimacy and accuracy of spring hanger project budget depends mainly on the calculation basis. Therefore, in the preparation of the spring hanger installation budget process, we must master the following few should be based on. 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.