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1. Requirements for pipeline materials for ultrasonic flow meters
External clamp ultrasonic flow meters can meet a wide range of pipeline materials, including various metal pipelines, various engineering plastic pipelines, and other materials with uniform and dense pipeline cracking. Regardless of the type of pipeline, the pipeline material must be uniform, dense, and have good sound transmission. The material should not have gaps and the pipe wall should be smooth and flat. If the pipeline has lining, its material category should meet the requirements of various manufacturers instruments and should fit well with the pipeline without gaps. The measuring medium is a single-phase liquid that does not contain excessive or large bubbles or solid particles, and the medium temperature is within the range of -20 ℃ -121 ℃ (standard type) or -20 ℃ -250 ℃ (high temperature type, international advanced level). The coupling agent between the external clamp sensor and the pipeline must be well coupled. Therefore, in some outdoor environments, such as those that are prone to water accumulation, sand and dust infiltration, especially in IP68 environments, sensors and coupling agents are submerged in water. The coupling agent is submerged in water for a long time, which affects the measurement effect of the external clamp sensor and increases maintenance workload. Therefore, it is not recommended to use the external clamp type, and an insertion type ultrasonic flowmeter should be used. In addition, for liquid media such as brine that have severe corrosion on the inner wall of pipelines and are prone to crystallization, pipelines with non heat bonded inner liners are not suitable for external clamp sensors. External clamp type
2. Which flowmeter is the best to use?
Ultrasonic water measurement is a relatively simple flow measurement method, usually installed externally.
. This method is not only easy to install, but also has low requirements for the pipeline itself to block drafts. However, it is worth noting that the accuracy of ultrasonic flow meters is relatively low and may not be suitable for applications that require high measurement accuracy. In the domestic market, there are several well-known manufacturers in the field of ultrasonic flow meters. For example, Dalian Haifeng, Daosheng, Tangshan Huizhong, and Shenzhen Jianheng. These manufacturers products each have their own characteristics, and users can evaluate and select based on specific needs when choosing. The external installation method makes the application of ultrasonic flow meters more flexible. This method does not require tedious modifications to the pipeline and can be quickly installed and put into use. This is very advantageous for situations that require rapid deployment of traffic measurement systems. Although ultrasonic flow meters perform well in terms of installation convenience, their accuracy bridge draft issues cannot be ignored. When choosing an ultrasonic flowmeter, users should weigh the relationship between installation convenience and measurement accuracy based on the needs of the actual application scenario. For applications that require high precision, other types of flow meters may need to be considered. In summary, ultrasonic flowmeter, as a convenient and sensitive flow measurement tool, has certain market advantages. However, us
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