The intelligent liquid turbine flowmeter is a new type of intelligent instrument developed using advanced ultra-low power single-chip microcomputer technology, which integrates turbine flow sensors and display integration. It has obvious advantages such as compact structure, intuitive and clear readings, high reliability, no external power interference, lightning resistance, and low cost
Manufacturer of intelligent liquid turbine Flowmeter
High precision: generally up to ± 1% R, ± 0.5% R, and high-precision models up to ± 0.2% R;
Good repeatability: Short term repeatability can reach 0.05% to 0.2%, which is equivalent to having good repeatability. Regular calibration or online calibration can achieve extremely high accuracy, making it a preferred flowmeter for trade settlement;
Output pulse frequency signal: suitable for total measurement and computer connection, no zero drift, strong anti-interference ability;
Can obtain high frequency signals (3-4KHz) with strong signal resolution;
Wide range, with a medium to large caliber of up to 1:20 and a small caliber of 1:10;
Compact and lightweight structure, easy installation and maintenance, and high circulation capacity;
Suitable for high voltage measurement, there is no need to open holes on the instrument body, making it easy to make high voltage instruments;
There are various types of specialized sensors that can be designed according to the specific needs of users, such as low-temperature, bidirectional, downhole, sand mixing, etc;
Can be made into an insertion type, suitable for measuring large diameters, with low pressure loss, low price, can be removed without interruption, and easy installation and maintenance.
What are the main applications of turbine flow meters in
The turbine flowmeter, a precise and efficient flow measurement tool, has a wide range of applications that are remarkable. It is like an omnipresent guardian, playing an irreplaceable role in multiple critical areas.
In the torrent of industrial production, turbine flow meters are the backbone of liquid and gas flow measurement. Whether it’s the raging flames of petrochemicals, the steel rush of the metallurgical industry, or the fine manufacturing of food and medicine, turbine flow meters ensure the stability and accuracy of the production process with their high precision and reliability. It is like a precise timer, recording the flow of every drop of fluid and safeguarding every aspect of industrial production.
In the field of water treatment, turbine flow meters also shine brightly. Whether it is clear and transparent tap water or murky sewage, it can accurately measure and monitor the flow rate of water, ensuring the effective utilization of water resources and environmental monitoring. Its presence covers various aspects such as water supply, sewage treatment, industrial circulating water, and steam metering, contributing to the rational utilization of water resources and environmental protection.
In addition, turbine flow meters are widely used in many fields such as aerospace, energy, HVAC systems, etc. In areas such as rocket fuel injection, aircraft fuel system monitoring, thermal energy measurement, steam measurement, etc., it has provided strong support for special departments such as scientific research experiments, national defense technology, and metrology with its excellent performance and accuracy.
Turbine flowmeter is a speed flow measuring instrument with temperature and pressure compensation function, which belongs to a speed flowmeter. Its working principle is: the power of the flowing fluid drives the turbine blade to rotate, and its rotation speed is approximately proportional to the volume flow rate. The volume indication value of the flow meter is based on the number of revolutions of the turbine impeller. Turbine flowmeter is widely used in petroleum, chemical industry, electric power, gas pipe network, city gas and other fields, and is widely used in trade settlement because of its high measurement accuracy, good repeatability and stability, wide range, rapid response to flow changes, strong anti-interference ability, easy signal transmission and other characteristics.
Flowmeter with turbine for measurement. It first converts the flow rate into the turbine’s speed, and then converts the speed into an electrical signal proportional to the flow rate. This flowmeter is used to detect instantaneous flow rate and total integrated flow rate, and its output signal is frequency, which is easy to digitize. The induction coil and the permanent magnet are fixed to the housing. When a ferromagnetic turbine blade passes through a magnet, the magnetoresistance of the magnetic circuit changes, resulting in an induced signal. The signal is amplified and shaped by an amplifier and sent to a counter or frequency meter to display the total integrated flow rate. At the same time, the pulse frequency is converted by frequency-voltage to indicate the instantaneous flow rate. The speed of the impeller is proportional to the flow rate, and the number of revolutions of the impeller is proportional to the total amount of flow. The output of the turbine flowmeter is a frequency modulation signal, which not only improves the anti-interference of the detection circuit, but also simplifies the flow detection system. Its range ratio can reach 10:1, and the accuracy is within ±0.2%. The time constant of the turbine flowmeter with small inertia and small size can reach 0.01 second.
In Europe and the United States, the turbine flowmeter is the second legal natural gas flowmeter after the orifice flowmeter, and has been developed into a multi-variety, full series, multi-specification, mass production scale natural gas flowmeter. The standard specification is also very complete, but there are shortcomings: the cleanliness of the measurement medium is required to be high, and the service life is limited. However, according to foreign users, 240 flowmeters used for 8 to 15 years have been periodically verified and found that the deviation of instrument accuracy is still within the specified range. In addition, using an efficient rectifier and turbine flow sensor coupling into a structured integrated gas turbine flow meter, in the upstream side of the choke for elbow or a semi-open stop valve conditions, only the length of 2D straight pipe section, for urban installation space is narrow, it is a very prominent feature.
Turbine flowmeter is the main type of velocity flowmeter. When the measured flow body flows through the turbine flowmeter sensor, under the action of fluid, the impeller is forced to rotate, and its speed is proportional to the average flow rate of the pipeline. At the same time, the blade periodically cuts the magnetic field line generated by the electromagnet to change the magnetic flux of the coil. The frequency of this electrical pulsation signal is proportional to the flow rate of the measured flow.
Among all kinds of flowmeters, turbine flowmeter, positive displacement flowmeter and Coriolis mass flowmeter are three types of products with the best repeatability and accuracy, and turbine flowmeter has its own characteristics, such as simple structure, fewer processing parts, light weight, easy maintenance, large flow capacity (the same caliber can pass large flow) and can adapt to high parameters (high temperature, high pressure and low temperature). So far, this type of flow meter products can reach the technical parameters: caliber 4-750mm, pressure up to 250MPa, temperature of -240-700℃, such technical parameters of the other two types of flow meters are difficult to achieve.
Turbine flowmeters are widely used in the following measurement objects: petroleum, organic liquid, inorganic liquid, liquefied gas, natural gas, gas and low temperature fluids. In foreign liquefied petroleum gas, refined oil and light crude oil transfer and gathering stations, the first and last stations of large crude oil transmission pipelines are widely used for trade settlement. In Europe and the United States turbine flowmeter is second only to the orifice plate flowmeter of natural gas metering meters, only the Netherlands in the natural gas pipeline has used more than 2600 sets of various sizes, pressure from 0.8MPa to 6.5MPa gas turbine flowmeters, they have become an excellent natural gas flowmeter. Although the excellent metering characteristics of the turbine flowmeter are favored by people, it gives people the impression that the moving parts, the use period is short, and it is inevitable to hesitate when choosing, and after people’s unremitting efforts, it should be said that the situation has greatly improved. Turbine flowmeter as the most common flowmeter, its products have been developed for multi-variety, full series, multi-specification mass production scale.
It should be pointed out that in addition to the above-mentioned industrial applications, turbine flowmeters are also widely used in some special departments, such as scientific research experiments, science and technology, metrology departments, the use of these areas just avoid its weaknesses (not suitable for long-term continuous use), give full play to its characteristics (high precision, good repeatability, can be used for high pressure, high temperature, low temperature and micro-flow conditions). In these fields, most of them are designed according to the special requirements of the tested object, and they are dedicated instruments that do not carry out mass production.