Adjustable spring-damper Huaneng pipeline equipment shock absorber spring complex

Building with spring-damper according to the quality (weight) and dimensions points: a heavy spring-damper device, light spring-damper device or medium and small equipment and large spring-damper suspension damper device. Because different types of spring-damper device production varied in nature, the complexity of installation techniques vary greatly. Generally speaking, for spring-damper precision low mechanical equipment, the installation process is relatively simple, high precision machinery and equipment, spring-damper installation process is more complicated. Spring-damper mechanical equipment installation construction site, the whole installation is relatively easy, and the disintegration of the installation more difficult, than single spring-damper linkage spring-damper installation standards are lower. Various machinery and equipment, have their own spring-damper installation requirements and methods, but their basic installation process requirements is commonality. Machinery and equipment installed spring-damper stage, mainly through the construction process the following, namely: moving, spring-damper box to check, put the wire in place, leveling alignment, fixed spring-damper device (tighten the bolt) , cleaning, assembly parts and components assembly, commissioning, project acceptance. The construction process of the above conventional construction is scheduled order, and in the actual construction process, depending on the circumstances there is a change. In most cases, to the machinery and equipment installed spring-damper cross conducted operations. The discharge line in place, some in front of the device to the site, and some were later unpacking. Another example is the lifting haulage, to carry out this work in addition to equipment transported to the site from outside the store, and then when the device is in place on the basis and medium-sized spring-damper assembly and other components, but also have to move with lifting operation operations. Another example is the project date of acceptance, formally indicate that the installation of the project has ended last transition process, in essence, it is installed in each step of the process to conduct a review of inspection. Shock Absorber mainly used to bear dynamic loads, can effectively control the pipeline, any frequency and amplitude of any vibration and swing, especially high-frequency low-amplitude vibrations. It is to some extent limited the pipeline normal thermal displacement. Spring-damper into the use of ordinary bombs hanging, single and double spring spring three. When using an ordinary bomb hanging as a shock absorber which can only work in one direction, it should also be noted. Spring preload in the damper housing, when the pipe without displacement, preload mountain damper preload generated inside the bear, do not pass to the pipe. Pipe vibration when the vibration force generated by the shock absorber preload is smaller than the shock absorber was rigid, vibration force is greater than the shock absorber as preload, then pipe the reaction force and vibration force-displacement occur until the spring of equal. Thus, as long as the preload force piping vibration damper is more than possible, the pipeline will be able to eliminate vibration, and vice versa, you can reduce the vibration of the pipe. To strengthen the water supply, drainage (hereinafter referred to drainage) pipeline construction management, and regulate the construction technology, unified construction quality inspection, acceptance criteria, to ensure project quality, the development of this specification. Code applies to new construction, expansion and renovation of urban public facilities and industrial enterprises to the construction and commissioning of outdoor drainage pipe project; does not apply to industrial enterprises with special requirements to the sewer construction and acceptance. To the sewer works with a variety of raw materials, semi finished products, specifications, performance must comply with the relevant national standards and design requirements; contact with drinking water must comply with the relevant health requirements. Do not use the obsolete, banned products. To the sewer construction and acceptance shall comply with the provisions of this standard, there should be consistent with existing national standards.