How to adjust the range of spring damper in hot state
When it comes to the use of spring shock absorber, it is quite extensive, including the anti vibration of pipes and equipment used in nuclear power plants, thermal power plants, chemical plants, steel plants, etc. It is often used to control fluid vibration excitation (such as fluid pulsation, two-phase flow, high speed flow and aeolian vibration) of pipeline system. Spring damper is a vibration control installation with flexible response to displacement.
Then, how is the hot adjustment range of spring damper?
1. The spring shock absorber should firmly shrink all possible loose conditioning parts;
2. When stopping the hot adjustment of the spring damper, it is necessary to ensure that the remaining stroke after the spring is compressed is greater than the axial displacement of the damping spring caused by the cold contraction displacement of the pipe;
3. After inspection and adjustment of supports and hangers;
4. It is not suitable to condition parts by destroying threads or spot welding.
5. During load troubleshooting, a series of inspection and troubleshooting will be stopped after the manufacturing of supports and hangers is completed; 6. If the reason why the load displacement indication does not coincide with the hot state mark when operating at rated temperature is removed, the load displacement indication can not be accurately adjusted to the hot state position mark, and the pointer has been quite close to the hot state position mark, and the support and hanger have not moved to the end of their travel range, then the support and hanger can be considered normal.

The non-metallic compensator is better than the metal shrink joint
The structure of non-metallic contraction joint mainly includes skin, stainless steel wire mesh, insulation cotton, insulation filler layer, frame and baffle. Skin is a kind of high-strength sealing composite material, which is composed of a variety of silicone rubber and other materials with excellent performance, and has the function of waterproof and air leakage.
Stainless steel wire: It is an effect to prevent sundries from flowing out, and it is the lining of non-metallic contraction joint.
Insulation cotton: non-metallic contraction joint has sound absorption, vibration isolation and transmission functions, and has good extensibility and tensile strength.
Thermal insulation filler layer: an important guarantee for thermal insulation of non-metallic contraction joints, which is composed of a variety of high-temperature resistant materials.
Rack: It has sufficient strength and rigidity, and the material is consistent with the temperature of the medium.
The baffle plate is corrosion resistant, wear-resistant, and has the function of guiding and maintaining the thermal insulation layer.