In the high-pressure drain pipe system of thermal power plants, the stable operation of the heat-sleeved universal bimetallic thermometer WSS-571-C is crucial. This equipment not only needs to withstand the harsh environment of high temperature and high pressure, but also needs to maintain measurement accuracy under complex fluid dynamic conditions. However, in practical applications, pointer jitter problems often occur due to pipeline vibration, fluid impact or improper installation, affecting data reading and system reliability. In response to this phenomenon, it is necessary to conduct a comprehensive analysis from multiple aspects such as equipment characteristics, installation optimization, vibration reduction design and maintenance strategy to achieve effective control of pointer jitter.

1. Equipment characteristics and environmental adaptability

The heat-sleeved universal bimetallic thermometer WSS-571-C adopts a spiral-wound bimetallic strip structure and realizes temperature sensing through a combination of two metal materials with different expansion coefficients. Its universal design allows the pointer disk to be connected to the protective tube at any angle, which meets the diverse installation requirements in high-pressure drain pipes. In a high-pressure environment, the high-speed flow and pressure fluctuations of the fluid can easily cause pipeline vibration, which is then transmitted to the thermometer body, causing pointer jitter. In addition, cavitation or medium impurities that may exist in the drain pipe will also aggravate the uneven force of the equipment. Therefore, the selection and installation of the equipment must fully consider the environmental characteristics to reduce the impact of external interference on the measurement system.

2. Installation optimization and structural design

In the high-pressure drain pipe, the installation position and method of the thermometer WSS-571-C directly affect its operating stability. First, avoid areas with severe fluid disturbances such as valves and elbows, and select straight pipe sections with stable fluid flow. The insertion depth needs to be reasonably determined according to the pipe diameter. It is usually required that the measuring end penetrates into the center area of ​​the pipe to ensure full contact with the medium and reduce the edge effect. For pipes with larger diameters, the insertion depth must exceed 100mm, and vertical installation or the installation of a support frame should be preferred to avoid bending and deformation of the protective tube due to its own weight or fluid impact.

The advantage of the universal structure is that the pointer disk angle can be flexibly adjusted to avoid the direct fluid impact direction. For example, in a horizontal pipe, the pointer disk can be adjusted to a certain angle with the fluid direction so that the vibration energy is dispersed to different axes instead of concentrating on the thermometer body. In addition, the material selection of the protective tube also needs to match the medium characteristics. In high-temperature and high-pressure hydrophobic environments, stainless steel or corrosion-resistant alloys are common choices, which can not only resist medium erosion, but also enhance vibration resistance through their rigidity.

3. Vibration reduction measures and system coordination

The vibration source of the pipeline system often comes from water pumps, valve opening and closing, or fluid pulsation. In order to reduce the transmission of vibration to the thermometer, vibration reduction elements can be introduced during installation. For example, elastic gaskets or rubber buffers are installed at the connection between the bimetallic temperature gauge WSS-571-C and the pipeline to absorb high-frequency vibration energy by deformation. For high-amplitude and low-frequency vibration, the overall vibration reduction design of the pipeline can be combined, such as setting expansion joints or damping brackets, to reduce the vibration amplitude from the source.

In terms of fluid dynamics, optimizing pipeline flow rate and pressure gradient can also alleviate pointer jitter. In high-pressure hydrophobic pipelines, too fast flow rate can easily cause turbulence and local pressure fluctuations, while too slow flow rate may cause medium deposition or cavitation. By reasonably designing the pipeline diameter and arranging bypass valves, the fluid can be evenly distributed in the pipeline to reduce local impact. In addition, regularly check the filter device of the water supply system to prevent impurities from entering the high-pressure pump or one-way valve, avoid pressure pulsation caused by blockage or jamming, and indirectly affect the stability of the thermometer.

4. Maintenance strategy and long-term reliability

Even if vibration reduction measures have been taken during the design and installation of the equipment, its performance still needs to be maintained during long-term operation. First of all, regular calibration is the basis for ensuring measurement accuracy. During the calibration process, the bimetallic thermometer WSS-571-C and the standard reference source need to be placed in the same environment, observe the deviation between the indicated value and the actual value, and compensate the error by adjusting the zero position or range. For thermometers in high-pressure drain pipes, it is recommended to conduct on-site calibration once a quarter and send them for inspection once a year to cope with possible performance degradation caused by mechanical fatigue or medium corrosion.

Secondly, daily inspections should focus on the integrity of the protective tube. If cracks, dents or corrosion marks are found on the surface of the protective tube, it should be replaced in time to avoid aggravating vibration transmission due to weak structure. At the same time, check the alignment of the pointer and the dial. If there is offset or jamming, the internal components need to be disassembled and cleaned and the transmission mechanism needs to be relubricated. For thermometers with electrical contacts, the reliability of the contact action must also be verified to prevent false triggering of control signals due to jitter.

Under extreme working conditions, such as severe cavitation or pipeline explosion vibration, the machine must be shut down for inspection immediately. At this time, the sealing and supporting structure of the pipeline system should be checked to ensure that all connections are not loose or worn. If the thermometer body is damaged, it needs to be replaced with equipment of the same model that meets the vibration resistance level requirements to avoid hidden dangers due to insufficient performance of temporary substitutes.

Through scientific installation planning, reasonable vibration reduction design and strict maintenance system, vibration transmission can be effectively suppressed and the measurement stability of the thermometer WSS-571-C can be improved. In practical applications, it is also necessary to combine dynamic adjustment strategies with specific working conditions, such as optimizing pipeline flow rate for seasonal load changes, or replacing key components in advance when the equipment is aged. Only by closely combining technical details with engineering practice can the thermometer be ensured to operate reliably in a complex environment for a long time and provide solid protection for the safety and efficiency of power plants.

When looking for high-quality, reliable Bimetal Thermometer, YOYIK is undoubtedly a choice worth considering. The company specializes in providing a variety of power equipment including steam turbine accessories, and has won wide acclaim for its high-quality products and services. For more information or inquiries, please contact the customer service below:
E-mail: sales@yoyik.com
Tel: +86-838-2226655
Whatsapp: +86-13618105229

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