”以其独特的优势在插入式流量计中始终保持领先的优势。 " Vortex flowmeter " has always maintained its leading position in plug-in flowmeters with its unique advantages. Verabar flowmeter is basically suitable for the measurement of all pipeline specifications on the site. The application on large-diameter pipelines shows even more advantages. It is suitable for measuring the flow of various liquids, gases, and steam, especially ultra-low temperature, high temperature, high pressure, and humid fluid Measurement of media. However, when the application is popularized, the problem of how to maintain will also be encountered. The following is a general summary of the work and simple maintenance of the vortex flowmeter before commissioning:
”安装情况：完成“涡街流量计”安装后，须认真检查，要求焊接牢固，方向正确，试压无泄漏现象。 1. Check the installation of the " vortex flowmeter ": After completing the installation of the "vortex flowmeter", it must be carefully inspected, and the welding must be firm, the direction is correct, and there is no leakage in the pressure test. 2. Instrument calibration: Read the manual of the intelligent flow totalizer carefully. According to the calculation book attached to the "vortex flowmeter", set the parameters in the intelligent flow totalizer correctly to ensure that the totalizer can correctly calculate and display the flow. If you are directly on the computer, you need to set the input data format and corresponding compensation in the computer. 3. Instrument wiring is correct: "vortex flowmeter" and differential pressure transmitter and flow totalizer constitute a measurement system. Please check repeatedly. Make sure it is correct before putting it into operation. 4. System warm-up: After the preparation for commissioning is completed, the measured medium fills the process pipeline, and the "vortex flowmeter" is temporarily closed. At this time, the balance valve of the three valve group should be opened, and the high pressure valve and low pressure valve Is off. Power on the instrument and warm up for 15 minutes.
5. System operation: After the preheating is completed, open the high-pressure valve and low-pressure valve of the three-valve group, fill the differential pressure transmitter with the measured medium, open the drain valve behind the differential pressure transmitter, and quickly discharge the dirty liquid or gas. Close the blowdown valve and then close the balance valve of the three-valve group. The transmitter will enter the measurement state and the flow totalizer will also enter the working state to display the medium flow in the pipeline. At this time, the vortex flowmeter can be used normally.
的选型正确后不但可以提高工作的效率，同时也可以提高测量的精准度。 The correct selection of the vortex flowmeter can not only improve the work efficiency, but also improve the measurement accuracy. Vortex flowmeters are generally used to measure high-viscosity media such as crude oil, crude oil, and hydrogen, and are very important measurement tools. When selecting a vortex flowmeter, there are a few basic principles that need to be followed: meet basic functions; do not choose special instruments when the basic instrument is optional; coordinate with the original system, and consider future updates and developments; use generalized performance Price comparison concept, comprehensive performance, reliability and comparison of installation and maintenance costs. At the same time, before the selection, you need to know the specific classification of the vortex flowmeter in order to choose the best vortex flowmeter. The classification of vortex flowmeters is as follows: 1. According to the signal type: flow sensor and flow transmitter; 2. According to the structure and installation: integrated type and separation type, separation type lies in inspection; 3 According to the use environment: test circuit components away from high temperature, underground or high altitude or other inconvenient environments; you can also choose whether there is a local display 4. According to the type of power supply: system power and battery power; choose according to different types The quickest and most effective way. In order to be convenient to use, you need to know some basic information before the selection, such as: the principle, characteristics, application occasions of the instrument, the structure, appearance and installation dimensions of the instrument, the accessories that match the instrument, supporting instrument information, etc. These are the prerequisites for proper use. After the selection is complete, it is necessary to start the correct installation of the vortex flowmeter. Correct installation will bring satisfactory use. It is recommended that you read the operation manual before proceeding with the installation. For the position, straight pipe, azimuth, flow direction, the positioning of the flange alignment must be clear. Electrical wiring is very critical and requires careful linking. After installation, check and then power up.