Application of Three New Flow Meters in Acetic Acid Plant

Abstract: The application information of three new flowmeters in acetic acid plants is provided by excellent flowmeter and flowmeter manufacturers. Introduction Flow measurement is the most extensive process requirement in chemical plants. There are various methods of flow measurement with different principles, such as: differential pressure type, float type, volumetric type, turbine type, vortex type, ultrasonic type, Coriolis force mass type, thermal type, electromagnetic. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following are the application details of three new flowmeters in acetic acid plants. Introduction Flow measurement is the most extensive process requirement in chemical plants. There are various methods of flow measurement and different principles, such as: differential pressure type, float type, volumetric type, turbine type, vortex type, ultrasonic type, Coriolis force mass type, thermal type, electromagnetic type, target type, etc. . Generally, the type of flowmeter should be selected according to process requirements such as operating temperature and pressure; viscosity of medium, thermal conductivity, corrosion strength; allowable resistance drop of pipeline; measurement accuracy, price, and on-site maintenance convenience. The synthesis of acetic acid by low-pressure methanol carbonyl method is based on carbon monoxide and methanol as raw materials, carbonyl rhodium as the main catalyst, hydroiodic acid and methyl iodide as cocatalysts, and the crude acetic acid is synthesized under the conditions of 190 ° C and 2.8 MPa, and then it is obtained by flashing, separation and purification. The pure acetic acid product is the most advanced process for producing acetic acid at present. The domestic production of acetic acid using this technology is constantly under construction and is in the stage of rapid development. This process is characterized by high temperature and strong corrosiveness. In addition to acetic acid with various concentrations and temperatures, the corrosive medium also has extremely strong corrosive media such as hydroiodic acid and methyl iodide, and the corrosive environment is complex. With the continuous progress of flow measurement technology, in view of the shortcomings of the original part of the orifice plate, vortex street, turbine, oval gear and other flow measurement instruments in the acetic acid plant, which are easy to wear, corroded and leaked by the medium, short life, and heavy maintenance workload, etc. During the technical transformation, according to the process requirements and the characteristics of different media, a variety of new flowmeters were selected to replace the original design flowmeters, and good results were achieved in production practice, which not only met the process requirements, but also greatly reduced the investment and maintenance intensity. The following is a brief introduction to the use of the three flowmeters. 1 Integrated T-type Annubar flowmeter 1.1 Characteristics of Annubar flowmeter Annubar flowmeter is a differential pressure equalizing velocity tube flowmeter developed based on the principle of Bernoulli energy conservation and Pitot tube measurement. It has gone through 3 stages of development: the first generation of circular Annubar, the cross section of the detection rod is round; the second generation of gem type I, the cross section of the detection rod is rhombus, the second generation of improved gem type II, the cross section of the detection rod is Improved rhombus; the third generation T-type Annubar, the section of the measuring rod is T-shaped. T-type Annubar flowmeter has excellent intrinsic anti-blocking performance, high precision and good stability, outstanding signal-to-noise ratio and range ratio, integrated installation temperature and pressure compensation, and convenient installation. The Annubar flowmeter can measure the volume flow or mass flow of the medium. The T-type Annubar can be combined with the multi-parameter transmitter to measure the mass flow of the medium. The multi-parameter transmitter has built-in high-precision differential pressure transmission. device, absolute pressure transmitter, temperature transmitter, high-speed CPU and large-capacity data storage. The memory stores the physical parameters that various fluids need to use in the temperature compensation formula at different pressures and temperatures, including data such as density, viscosity, gas constant, compressibility, constant volume specific heat, etc., according to the actual working pressure of the fluid. , temperature, real-time, dynamic and most complete compensation calculation, eliminating the factors that cause flow measurement errors to the greatest extent. For steam flow measurement, it will automatically judge whether the steam is in a saturated, unsaturated and hot state, and automatically perform compensation calculations. The measurement accuracy is about 1%. The material of the measuring rod is stainless steel and Hastelloy, and the process temperature can reach up to 677 °C. The Annubar flowmeter is especially suitable for the measurement of gas and steam. The integrated Annubar flowmeter has the following main advantages over the orifice flowmeter: a single integrated assembly saves parts; no pressure pipe is required; the reliability of the flowmeter is improved. performance and measurement accuracy; reduce installation costs and time; reduce maintenance intensity and costs; reduce potential leakage, reduce environmental pollution; reduce pressure drop, save energy; more adapt to changes in device load. 1.2 Precautions for selection of Annubar flowmeter The mechanical size of the Annubar flowmeter is tailored according to the size of the pipeline to be installed, and its flow measurement range is also calculated and calibrated according to the flow data provided by the user.

Beijing Sincerity Automatic Equipment Co., Ltd in the right situation can streamline the entire process, enabling your team to deliver higher quality work in a shorter amount of time.

If you are looking for an excellent service in the UK then you can go to Beijing Sincerity Automatic Equipment Co., Ltd. They have almost everything what you might require for your coriolis mass flow meter emerson.

mass flow meter also offers several other v shape coriolis mass flow meter that could potentially be useful for manufacturers.

Forging an tight connection starts with understanding your potential customers and catering to their needs on mass flow meter, both with a quality product and impactful coriolis density meter.