The development history of industrial vortex flowmeter

Abstract: The information on the development history of industrial vortex flowmeters is provided by excellent flowmeter and flowmeter manufacturers. In nature, there are many fluid vibration phenomena. For example, the flag fluttering in the wind; the humming sound of the overhead wires in the field; the small stream causing the water plants, seedlings, and small tree trunks in the water to sway frequently, all of which are specific manifestations of fluid vibration. . More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the development history of industrial vortex flowmeters. In nature, there are many fluid vibration phenomena. For example, the flag fluttering in the wind; the humming sound of the overhead wires in the field; the small stream causing the water plants, seedlings, and small tree trunks in the water to sway frequently, all of which are specific manifestations of fluid vibration. In the phenomenon of fluid vibration (hydrodynamicoscillation),·There is a corresponding relationship between fluid vibration frequency and flow velocity. The instruments that use this principle to measure flow mainly include vortex separation flowmeter (VortexSheddingFlowmeter) often called vortex flowmeter; vortex precessing flowmeter (VortexPrecessingFlowmeter) often called vortex flowmeter; fluidic flowmeter (FluidicFlowmeter). Since the mid-1960s, scientists in the United States, Europe and Japan have invested in the study of fluid vibration flowmeters in different ways. By the end of the 1960s and the beginning of the 1970s, the above three flowmeters appeared successively. The development of the three flow meters differs for reasons of manufacture, application and promotion. The characteristics of the vortex flowmeter are fully exerted, and it is accepted by users earlier and develops the most rapidly. The development of the other two instruments is relatively slow, but they have been gradually promoted in recent years. Since ancient times, people have noticed that the wind can make a taut string make different sounds. There is also a record that in the middle of the night, the self-sonating violin hanging on the wall by the bed was blown by the night wind and made a sound, awakening the owner from the dream. In the mid-16th century, famous painters and scientists reached·In his work, Finch depicts the column of vortices that appear behind a bluff body inserted into the water. The first person in the world to study the phenomenon of vortex street was the Hungarian physicist Strouhal. In 1878, in the experiment he directed, he found that under the action of the wind, the pitch of a thin string is proportional to the wind speed and inversely proportional to the diameter of the string. 1879, Rhodes·Larett (playing rd. R five deight) found that: when the vortex causes the fluid to vibrate, the vibration direction is perpendicular to the flow direction; he also observed: when the natural tone of the string matches the tone of the wind acting on it, the sound will be suddenly increased. In 1908, Ben Nair pointed out that the periodicity of the wake behind the cylinder is related to the formation and arrangement of the vortex. In 1912, the German physicist Feng·Von. Kallnan studied the stability of vortex street on the basis of a large number of experimental observations, and published a famous paper on the stability condition of vortex street in infinite uniform flow field. The stable conditions for the formation of the vortex street downstream of the cylinder are proved mathematically. This conclusion of Kaman laid a theoretical foundation for the development and application of vortex flowmeter. However, the main purpose of the early research on the vortex street phenomenon was to prevent disasters. With the development of industry, especially the aviation industry, the destructive effect of vortex street formation on production and construction facilities, such as high-rise buildings, bridges, towers, port facilities, ship masts, cables, drilling platform supports, etc., has been found. Damaged in strong wind and waves; damage or breakage of boiler pipes, header pipes in heat exchangers, and temperature measuring sleeves in pipes are all related to the formation of vortex streets. Therefore, for a long time, scholars have been observing and studying the regularity of the formation of vortex streets, exploring the reasons for the destructive effects of vortex streets, and looking for ways to prevent such destructive effects. In the middle of the 20th century, some scholars claimed that the struggle between human beings and the harmful effects of vortex has lasted for nearly half a century. There are always two sides to things. While some people are studying the effect of preventing vortex street damage, others are also discussing how to use the phenomenon and principle of vortex street to do some useful work, and the idea of ​​using Karman vortex street to measure fluid flow velocity. is one of them. This idea was first seen in the United States in 1935. By the 1950s, the American scientist Roshko proposed the possibility of using the Karman vortex street to measure wind speed and conducted related experiments. In 1960, on the Japanese ship Shiba, an experiment was carried out to measure the speed of the ship using the principle of Karman vortex street. The above experimental research work is carried out under the condition of infinite two-dimensional uniform flow field. In the three-dimensional pipe flow field, the research work of measuring flow by vortex street is carried out. will be delayed until the mid-1960s. During this period, scientists from Japan, the United States and the former Soviet Union and other countries have successively carried out research and development of vortex flowmeters.

The global market was valued at endress hauser ultrasonic flow meter in low flow turbine flow meter and is expected to reach a market value of tuning fork liquid density meter by coriolis mass flow meter emerson, with a CAGR of digital fork density meter during the forecast period.

Beijing Sincerity Automatic Equipment Co., Ltd’s purpose is to create superior value for our customers, employees, communities and investors through the production, conversion, delivery and sale of energy and energy services.

Through our distribution and marketing competencies, Beijing Sincerity Automatic Equipment Co., Ltd provides creative, customized, solutions for our customers. As a result, we achieve superior profit growth as the mass flow meter company of choice.