The Practical Application of 1158C External Clamp Ultrasonic Flow Meter in Slag Water Measurement and Production

Abstract: The practical application information of 1158C external clamp ultrasonic flowmeter in the production of slag water measurement is provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. 1. The article outlines that flow measurement in industrial production is a very important job, and it is the basic work to ensure accurate flow data for stable production. The selection of flow measurement instruments is particularly important. . More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following are the details of the practical application of the 1158C external clamp ultrasonic flowmeter in the production of slag water measurement. 1. The article outlines that flow measurement in industrial production is a very important job, and it is the basic work to ensure accurate flow data for stable production. The selection of flow measurement instruments is particularly important. The reasonable selection of measuring instruments based on the measured medium plays a key role in the automation of production and the provision of continuous and stable measurement data for control. Runzhong Instrument Technology is a professional flowmeter manufacturer integrating R&D and production. It has been focusing on the development of flowmeters for many years. The company produces a clamp-on ultrasonic flowmeter product because of its convenient installation and measurement accuracy. High, stable and well received by the market. Now let's talk about the basic situation of this traffic. 2. Measurement principle of RZ-1158C external clip-on ultrasonic flowmeter RZ-1158C external clip-on ultrasonic flowmeter uses ultrasonic waves to pass through the flowing liquid horizontally, in the downstream and countercurrent media, the ultrasonic speed is different. And the formation of speed difference (time difference). The time difference ultrasonic flowmeter uses this principle to measure the flow velocity and flow of the fluid. The specific method is as follows: within a distance of a fixed length L, place a transducer for transmitting ultrasonic waves (commonly known as an ultrasonic probe) and a transducer for receiving ultrasonic waves. The transducers that emit ultrasonic waves usually use piezoelectric elements made of materials such as quartz as transducers. When transmitting ultrasonic waves, the negative piezoelectric effect is used, that is, the action of high-frequency electric pulses is used to make the piezoelectric crystal vibrate at high frequency, thereby emitting high-frequency pressure waves (ie, ultrasonic waves) with pulse changes. The receiving transducer is installed on the opposite side of the pipe, and it uses the positive piezoelectric effect to convert the high-frequency pressure wave into a high-frequency electrical pulse signal. The same transducer can be used alternately to transmit high-frequency, short-term pulse pressure waves, and then used to receive pulse pressure waves from the opposite transducer. A set of transducers can also be used for receiving and sending ultrasonic waves. (as shown in the figure), then for the downstream and upstream, there are: time difference measurement principle diagram, the upstream propagation time t1=L/(C-Vcosθ), the downstream propagation time t2=L/(C+Vcosθ) The time difference of propagation The value is: △T=t1-t2=L/(C-Vcosθ)-L/(C+Vcosθ) Since the liquid velocity V is below several meters per second, and the sound velocity C in the fluid is about 15OOm/s, C2??V2 , so: △T=2VLcosθ/C2 is: V=C2△T/(2Lcosθ) (1) In the formula: C is the sound speed in the static fluid, m/s; V is the fluid speed; L is the distance between the probes , m; θ is the angle formed between the velocity vector and the orientation of the probe. It can be seen from formula (1) that the change of the speed of the ultrasonic wave sent from the generator to the receiver is proportional to the fluid velocity in the pipeline. Reject this, put the pipeline parameters into the instrument, and the collected data is transformed by the converter to obtain the instantaneous flow and the accumulated flow. The instantaneous flow rate is: Q=450πLC2△Tsinθtanθ(m3/h) Third, the characteristics of RZ-1158C ultrasonic flowmeter The probe can be installed on the outer wall of the measured pipeline to achieve non-contact measurement, that is, it does not interfere with the flow field and is not affected by the flow. Field parameter effects. The output and flow are basically linear, the accuracy is generally up to 1%, and the price does not increase with the increase of the diameter of the pipeline, especially suitable for the measurement and technical transformation of large-diameter pipelines and mixed impurities or corrosive liquids. 4. The slag discharge system of the application process in chemical production was originally designed to use an electromagnetic flowmeter to measure the slag water flow. In actual production, the slag water contains white crystals (less than 10g/L, particle size less than 1mm). The electrode of the electromagnetic flowmeter is broken. In this case, the electromagnetic flowmeter cannot be used here. According to the characteristics of ultrasonic flowmeters, our company uses Beijing Hengante series external clamp ultrasonic flowmeters instead. Clamp-on ultrasonic flowmeter uses the difference in propagation speed of ultrasonic pulses in the forward and reverse directions of the fluid to obtain the flow rate of the fluid. It is a new type of ultrasonic flowmeter successfully developed on the basis of many advantages of ultrasonic flowmeters at home and abroad. Flow meter. The instrument adopts chip integrated circuit and low voltage multi-pulse emission technology. Features: For measurement outside the pipe, the probe is mounted on the outside of the pipe wall, which can be installed and measured without stopping production and water. The ability to resist air bubbles or solid particles in liquids is greatly improved. The ability to resist frequency conversion interference and other noise interference is also greatly improved.

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