Abstract: check the inserted into the meter scale several methods of information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Check the insertion of flowmeter several methods: 1, the flow rate meter method called meter method, is only checkpoint flow pattern plug-in flow sensor measuring head, the measuring head as a way to a meter to check. For the frequency output type measuring head ( Such as insert. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a check inserted into the meter scale several methods of this article for details. Check the insertion of flowmeter several methods: 1, the flow rate meter method called meter method, is only checkpoint flow pattern plug-in flow sensor measuring head, the measuring head as a way to a meter to check. For the frequency output type measuring head ( Such as insert turbine and plug-in vortex street flowmeter) , first of all, in the calibration device instrument of measuring head coefficient have been measured, and then according to the application field of fluid and the pipe conditions to determine the velocity distribution coefficient. Meter method has many advantages, it should be point flow pattern insert flowmeter calibration of the main methods, should be widely used. 2, meter calibration device calibration method and calibration method is: will flow meter measuring head firmly fixed in the measurement of the car, car on the track on either side of the sink mobile measurement standard speed movement speed is water, change velocity and instrument signal, the relationship between various speed obtained to determine the flow rate of the measuring head meter coefficient. If the meter manufacturers do not have straight line slot and low speed wind tunnel, you can also use pipe flow standard device for calibration of measuring head, but must be sure of velocity distribution coefficient in the test section of the pipe flow standard device and blocking coefficient. 3, flowmeter flowmeter is for the entire plug-in flow sensor, including measuring head, insert rod, insert the agency, translator and calibrate the measuring pipe, namely the insert type flow meter as a full tube flowmeter calibration instrument coefficient is obtained on flow standard device. So the calibration equipment and methods and full tube flowmeter are exactly the same. Here no longer. 4, current meter meter zui big advantage is the only real flow to calibrate the instrument coefficient of measuring head, and calibration of measuring head can be small and medium-sized equipment, do not need to build large flow standard device, therefore, as the construction costs in check device and instrument daily calibration cost is low. Meter method is used to check the insert flowmeter is various kinds of large diameter flowmeter production cost of the flow meter with low operation cost zui. And calibration plug flow meter by meter method, makes the production cost of instrument is high, for some large diameter instrument even can not check at present. Into the source of instrument as a quality brand flow meter manufacturer, the main products: sewage flowmeter, electromagnetic flowmeter, steam flow meter, gas meter, turbine flowmeter, ultrasonic flowmeter, balance flow meter, such as steam flowmeter, professional custom, the good faith bargaining! Welcome new and old customers advisory and procurement, we with sincere service for you! Our factory is located in the lakes surrounded, sunrise bucket of gold, named by the premier zhou enlai personally beautiful lotus township town: golden lake, if you need to visit our factory to inspect, also welcome you to appreciate our sanhe town scene, li river, morning drum's bells, enjoy our town of fishing boring, fresh food, sen lake bath fragrance! Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.
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Abstract: the electromagnetic flow meter scale in water reducing use of the measurement information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. We found in the design of water connection to users, according to user's water pipe diameter or table size, some with different water properties should be considered. Such as development zone, a new medical instrument factory, water is divided into production water and domestic water. More flow meter manufacturers choose model price quote you are welcome to inquire, here is the electromagnetic flow meter scale in use the diameter of the measurement of water supply for details. We found in the design of water connection to users, according to user's water pipe diameter or table size, some with different water properties should be considered. Such as development zone, a new medical instrument factory, divided into production in the use of water, domestic water and fire water, including office, production zui big water consumption for 7. 62 m3 / h, unforeseen water by 15% plan to 1. 14 m3 / h, and air conditioning supplementary water 5 m3 / h, total zui large water consumption is 14. 76 m3 / h。 According to the production and living water consumption, a group DN80 meter should be installed, and tube flow velocity is zero at this time. 83m/s。 According to the fire department approval, the enterprise workshop of fire risk for class c, need to install indoor and outdoor fire hydrant. Design institute of design is to build a 200 m3 fire pool, water content meet the indoor fire water consumption. Outdoor fire water are provided by municipal pipe straight outside loop pipe network of water supply, fire hydrant water usage: outdoor fire hydrant water 30 l/S; Indoor fire hydrant water 20 l/S. According to the requirements for fire rules and regulations, shall be installed a set of 6 meter group. Production, living and fire water if it is installed a water meter set 6 electromagnetic flowmeter, on the basis of fire in the specification when production, living water zui big water still have to ensure fire JiaoJiao principles of fire fighting water pipe network, the fire control water quantity and water pressure meet the requirements. Fire water only in the use of fire, when the fire control system don't start at ordinary times, tube is mainly production, living water supply enterprises, tube flow velocity is zero at this time. 22立方米/ s < 0. 3 m/s, can't meet the requirements of electromagnetic flowmeter for velocity range, ie not water consumption of production enterprises implement accurate measurement, it is reluctant to water supply enterprises. This caused by water tube flow velocity mismatch and cases need to users to install two groups of measuring instrument is often encountered in the practical work. Our solution is: 1. When the municipal water supply tubing diameter pipes, pipe fittings and valves, share after the parameters selected according to the system, choose the sensor diameter smaller than connection pipe diameter size of electromagnetic flowmeter, pipe diameter, table size, large diameter and small table size, reducer added before and after installing a connection sensors. As a result, in some local improve the velocity of electromagnetic flowmeter meet the requirements of the instrument for velocity range, makes the water supply enterprise in the water can be under the premise of accurate measuring dual function, save companies a set of metering device of the cost of investment. Such as the water meter fabric become medical instrument factory installed above pipe and valve, check valve 6, diameter electromagnetic flowmeter metering device for the DN100, sensor part of the flow velocity is zero at this time. 47岁的m / s > 0. 3m/s。 2. Reducer to meet the requirements of taper. Electromagnetic flowmeter of inlet and outlet of straight section length requirement, reducer, added before and after the sensor to be seen as part of a straight pipe, should be consistent with the product on the sensor before and after the section of divergent or convergent cone Angle is less than 15 o requirements. So it must be reducer center cone Angle calculation, such as the above DN100 electromagnetic flowmeter, population and the exit according to the atlas of feed water and drainage standard making 6 & times; 100 reducer, after the center cone Angle calculation for 11. 74o < 15o。 3. Reducer can't meet the requirement of taper, must be custom-made extended divergent or reducing pipe. Such as development zone based on a large foreign enterprises to select DN600 electromagnetic flow meter in the original design of the water, the enterprise to the center of water supply for the water meter set construction costs, and because of the requirement of the straight section of electromagnetic flowmeter make water meter room too narrow, we consider the choice small primary and secondary pipe diameter size of the electromagnetic flowmeter, water flow speed in the allowed range. According to the standard atlas reducer size calculation, DN600X400 reducer center cone Angle to 20. 42 o。 DN600× 500 reducer center cone Angle is 16. 3 o, were greater than 15 o, do not meet the requirements of product design. Must therefore be custom-made the mark divergent or reducing pipe, extended reducing the length of the part, reduce center cone Angle and taper requirements within. Anyhow, electromagnetic flow meter used for measurement of water supply, due to its sensors have velocity requirements, but the velocity and the characteristics of wide range, designers can according to user's water consumption and the scene actual situation, make some flexible changes, it saves water meter set of investment, and measuring instrument operation in good working condition. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.
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Electromagnetic flowmeter manufacturers analyze several advantages of electromagnetic flowmeters Electromagnetic flowmeters are widely used in our industrial production, and their various advantages are obvious to all. Summarize for you today. 1) The sensor structure of the electromagnetic flowmeter is simple, and there are no movable parts in the measuring tube and no throttling parts that hinder the flow of the fluid. Therefore, when the fluid passes through the flow meter, it does not cause any additional pressure loss and is one of the flow meters with low energy consumption. 2) The flow rate of dirty medium, corrosive medium and suspended solids can be measured. This is because there are no parts that hinder the flow in the measuring tube of the instrument, only the lining of the measuring tube and the electrode are in contact with the fluid to be measured, and the material can be selected according to the properties of the fluid to be measured. For example, with polytrifluoroethylene or polytetrafluoroethylene as the lining, it can measure various corrosive media such as acids, alkalis, salts, etc.; with wear-resistant rubber as the lining, it is especially suitable for measuring solid particles, ore pulp and cement slurry with high wear Two-phase flow such as liquid and solid, as well as various fibrous liquids, pulp and other suspended liquids. 3) Electromagnetic flowmeter is a volume flow measuring instrument. During the measurement process, it is not affected by the temperature, viscosity and density of the measured medium (within a certain range). Therefore, electromagnetic flow meters can be used to measure the flow of other conductive liquids. 4) The output of the electromagnetic flowmeter is only proportional to the average flow of the measured medium, and has nothing to do with the flow state (laminar flow or turbulent flow) under symmetrical distribution. Therefore, electromagnetic flowmeters have a very wide range, with a measurement range of up to 100:1, and some even reach an operational flow range of 1000:1. 5) The electromagnetic flowmeter has no mechanical inertia and has a sensitive response. It can measure the instantaneous pulsating flow, as well as the positive and negative flow. 6) The diameter range of industrial electromagnetic flowmeters is very wide, from a few millimeters to several meters. The existing domestic 3-meter diameter real-flow verification equipment has laid the foundation for the application and development of electromagnetic flowmeters.
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Abstract: The selection formula of metal rotor flowmeter and the information on installation and use are provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. As a primary detection element for small flow measurement, the metal rotor flowmeter has been successively applied in the argon metering system of the special steel plant, the oxygen metering system of the medium-sized plant and the oxygen metering system of the machinery plant. stabilized. For more flowmeter manufacturers, you are welcome to inquire about the model selection and price quotation. The following is the selection formula of the metal rotor flowmeter and the details of the installation and use articles. As a primary detection element for small flow measurement, the metal rotor flowmeter has been successively applied in the argon metering system of the special steel plant, the oxygen metering system of the medium-sized plant and the oxygen metering system of the machinery plant. It has been running stably for several months and has achieved good measurement results. The following is a brief description of the characteristics, selection and use of metal rotor flowmeters. 1. Measuring principle and characteristics of metal rotameter The measuring part of metal rotameter is composed of an orifice plate and a conical float. When the fluid flows upward through the pipe, the conical float moves upward and reaches equilibrium at a certain position. The annular gap between the float and the orifice plate is kept constant, and the annular gap area is proportional to the rising height of the float, and a certain height of the float represents the flow rate. When the float moves up and down, it is transmitted to the external indicator in the form of magnetic coupling. , Make the pointer of the indicator follow the displacement of the float, and use the cam plate to make the pointer linearly indicate the flow rate. Features: The metal rotor flowmeter has simple structure, reliable operation, wide application range and high range ratio, generally 10B1. 2. Selection of metal rotameter When measuring liquid, the metal rotameter is generally marked with water under the standard state (20e); when measuring gas, it is marked with air under the standard state (20e, absolute pressure 011013MPa). scale. Therefore, when selecting the instrument for a certain measuring fluid, its flow range should be converted into the water or air flow under the standard state, and then the model should be selected according to the converted flow range against the standard scale of the metal rotor flowmeter. The following is an example of the oxygen consumption in the riveting and welding workshop in the oxygen metering system of the machinery factory. The original data are as follows: pipe diameter: Ф70@5; maximum oxygen consumption: 110m3/h; minimum oxygen consumption: 10m3/h; working pressure: 113MPa; working temperature: 30e; local average atmospheric pressure: 011MPa. Calculation: (1) Oxygen density (3) The flow correction formula under the actual use of the metal rotor flowmeter: In the formula: ZS(ZSN) is the compression coefficient of the measured gas under the standard state (working state) (generally ZSUZSN) ); QS is the actual flow of oxygen under working conditions; QN is the actual flow of air under standard conditions; QN is the density of air under standard conditions (11293kg/m3); pN is the standard atmospheric pressure; TN is the standard temperature 293115K; QSN is the standard The density of oxygen (ie Q20) under the conditions; pS is the actual working pressure of oxygen (ie p1); TS is the actual working temperature of oxygen (ie T1). According to the selection manual of metal rotameter products, LZDH-25 (315~35) is the most suitable. 3. Setting of the upper limit of the flow rate of the secondary meter Taking the oxygen consumption in the riveting and welding workshop as an example, the selected secondary meter is the compensation type intelligent flow totalizer produced by Jinan Zhonghuan Automation Research Institute. The parameters to be set in the middle ring meter are: FH, PH, Ph, Ps, CH, Ch, Cs. The upper flow limit FH of the flow meter should be the oxygen flow rate in the standard state corresponding to the upper limit of the scale of the metal rotameter. The scale is marked for air in the standard state, so it must be converted to the oxygen flow in the standard state. QN upper (QN lower): that is, the upper (lower) limit of the flow rate of the metal rotor flowmeter according to the air calibration in the standard state. According to the metal rotor flowmeter of the selected model LZDH-25 (315~35), the measuring range of oxygen is 121711m3/h~127111m3/h. It basically meets the measurement requirements of 11m3~110m3. 4. Precautions during installation and use of metal rotor flowmeter (1) The flowmeter must be installed vertically, the fluid to be measured passes through the flowmeter from bottom to top, and the inlet and outlet are guaranteed to have a straight pipe section with 5 times the diameter of the instrument. For new installations The pipeline should be flushed before the flowmeter is installed. (2) In order to facilitate the maintenance and replacement of the flowmeter, the bypass pipeline should be connected when the instrument is installed. (3) A valve should be installed upstream of the flow meter, and a flow regulating valve should be installed downstream of 5 to 10 times the diameter of the meter. For small-diameter instruments, a filter should be installed upstream. If the measured medium contains magnetic substances, a magnetic filter should be installed in front of the flowmeter. (4) When the measured medium is dirty, the tube and float should be cleaned in time. (5) The measurement accuracy of the metal rotor flowmeter is generally 215. When the measurement accuracy is required to be high, the metal rotor flowmeter should not be selected. V. Conclusion The use of metal rotor flowmeter solves the problem that small flow cannot be accurately measured, makes energy measurement more complete, and provides more reliable settlement data for the cost accounting of secondary factories and mines. The above is the whole content of this article,You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Metal rotor flow meter selection formula and installation and use precautions'
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have three basic components.

Abstract: The information on the installation and maintenance of the precession vortex flowmeter is provided by the excellent flowmeter and flowmeter manufacturers. If the precession vortex flowmeter is improperly installed and maintained, it will not only affect the measurement accuracy, but also damage the instrument in severe cases: when moving the precession vortex gas flowmeter, the slings should be put on the necks of both ends of the flowmeter flange. Do not measure at the external position. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the details of the installation and maintenance method of the precession vortex flowmeter. If the precession vortex flowmeter is improperly installed and maintained, it will not only affect the measurement accuracy, but also damage the instrument in severe cases: when moving the precession vortex gas flowmeter, the slings should be put on the necks of both ends of the flowmeter flange. Do not insert a pipe rod into the measuring tube for hoisting at the top position, so as to avoid damage to the lining, and at the same time, prevent the wiring socket of the screw-in vortex flowmeter from being damaged by collision. It must be ensured that the center of the precession vortex gas flowmeter is consistent with the center of the process pipeline, and the grounding wire must be connected, otherwise errors will be caused. The precession vortex flowmeter has no mechanical moving parts, small size, corrosion resistance, and stable performance; it can directly display the working pressure, temperature, flow rate of the medium and the gas volume in the standard state; it has the advantages of wide range and small measurement error. It is widely used in production measurement of oil and gas wells and sales measurement of natural gas. In field applications over the years, we believe that this flowmeter is most suitable for relatively clean dry gas measurement, and has gradually become the first choice for small and medium gas measurement. It is necessary to ensure the accurate measurement of the precession vortex flowmeter and reduce the measurement error. The precession vortex gas flowmeter generally does not require daily maintenance, but the measured medium is easy to adhere or scale on the inner wall of the electrode and the measuring tube. The inner wall of the measuring tube and the electrode must be cleaned regularly, and the lining and the electrode should not be damaged. When the precession vortex gas flowmeter fails, please refer to the following reasons to find out, analyze the reasons, and eliminate the fault one by one. 1. Whether the pipeline is full, and whether the lining and electrodes are scaled. 2. Whether all cable connections are reliable. 3. Whether the grounding requirements are met. 4. Whether the magnetic coil is short-circuited or open-circuited, and whether it is insulated from the ground. 5. Whether the pipeline leaks, whether the upstream and downstream valves are affected, and whether the installation position is appropriate. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Method of installation and maintenance of precession vortex flowmeter'
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