Compensator function characteristics and what conditions should be met in the pipeline
Release time:
2024-10-11
The internal and external pressure balance corrugated compensator is composed of the working wave of internal pressure and the balance wave of an external pressure. It is small in volume and its column instability wave number is twice that of the straight pipe pressure balance compensator, because the intermediate two groups of corrugated pipes are affected by the external pressure and have good stability.
The internal and external pressure balance corrugated compensator is composed of the working wave of internal pressure and the balance wave of an external pressure. It is small in volume and its column instability wave number is twice that of the straight pipe pressure balance compensator, because the intermediate two groups of corrugated pipes are affected by the external pressure and have good stability.
Internal and external pressure balance corrugated compensator features:
A. low noise energy saving, can effectively reduce the fan system noise, vibration and energy saving.
B. Multi-directional compensation, which can provide large multi-dimensional directional compensation in a small size range.
c. There is no reverse thrust, the main material is fiber fabric, and the transmission is weak. The pipeline and equipment on the project to avoid the use of large support, save a lot of materials and labor, improve the safety of equipment and systems.
d. The installation is simple, the compensator is easy to replace, no high-demand centering is required, no lifting equipment is required for replacement, and the time required is short.
E. the use of organic silicon, fluorine and other polymer materials coating treatment, with excellent high temperature resistance, corrosion resistance and sealing performance, anti fatigue, anti aging.
What conditions should be met for the selection of compensators in the heating network pipeline:
The reliability of the compensator is composed of design, manufacture, installation and operation management. Reliability should also be considered from these aspects. Material selection for the heating pipe network of corrugated pipe material selection, in addition to the work of the medium, the working temperature and the external environment, should also consider the possibility of stress corrosion, water treatment agent and pipe cleaning agent on the material, and so on, and on this basis, combined with the bellows material welding, forming and material performance price ratio, preferably choose economical and practical bellows material.
In general, the choice of corrugated pipe material should meet the following conditions:
(a) High elastic limit, tensile strength and fatigue strength to ensure the normal operation of the bellows.
(B) Good plasticity, convenient for the processing and forming of the bellows, and sufficient hardness and strength can be obtained through subsequent treatment processes (cold hardening, heat treatment, etc.).
(C) better corrosion resistance, to meet the requirements of the bellows in different environments.
(d) It has good welding performance and meets the requirements of the welding process of the bellows in the production process. For the thermal pipe network laid in the trench, when the compensator is located in the pipeline with low terrain, rainwater or accidental sewage will soak the bellows, and materials with stronger corrosion resistance, such as iron-nickel alloy and high-nickel alloy, should be considered. Due to the relatively high price of such materials, when manufacturing bellows, it can be considered to add a layer of corrosion-resistant alloy only on the surface in contact with corrosive media.
The fatigue life design can be seen from the failure type and cause analysis of the corrugated compensator. The plane stability, circumferential stability and corrosion resistance of the corrugated pipe are related to its displacement, I .e. fatigue life. Too low fatigue life will lead to metal bellows stability and corrosion resistance decreased.
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