Abstract: the intelligent vortex precession gas meter scale installation requirements of the information produced by excellent flow meter, flow meter manufacturer to offer you the quotation.

Intelligent gas meter installation requirements of vortex precession keywords: intelligent vortex precession of precession vortex flowmeter gas flowmeter flowmeter date: 2013 -
02 -

28 intelligent precession vortex gas meter is mainly used for measuring the volume of a gas flow, its working principle is the gauge of traffic flow sensor.

More flow meter manufacturers choose model price quote you are welcome to inquire, here is a smart precession vortex gas meter scale installation requirements of article details.

Intelligent gas meter installation requirements of vortex precession keywords: intelligent vortex precession of precession vortex flowmeter gas flowmeter flowmeter date: 2013 -
02 -

28 intelligent precession vortex gas meter is mainly used for measuring the volume of a gas flow, its working principle is meter flow sensor structure is similar to the flow of Wenqiu pipeline.

Flowmeter is a series of helical blade on one side of the entrance, when the fluid flow sensor, a dramatic eddy current guide blade force of fluid, fluid of the diffuser, the eddy current effect reflux quadratic rotating impact, formed the gyro type vortex phenomenon.

The precession frequency is proportional to the size, not influenced by the physical property and fluid density, detecting element quadratic spin precession frequency measuring fluid flow range wide, good linearity.

Signal through the preamplifier amplification, filter and conversion of plastic speed is proportional to the pulse signal, and then detect the signals, such as temperature, pressure, was sent to the microprocessor integrated processing, zui throughout the measurement results displayed in the LCD screen.

Flow meter, temperature, pressure, flow rate test function and body, and can automatically compensate the temperature, pressure, compression factor, oil chemical, electric power, metallurgy and other industries of the ideal instrument for measuring the gas.

On the principle of intelligent precession vortex gas meter, we must pay attention to follow the principle of the installation requirements when installation, general requirements are as follows: 1)

Meter, import and export ban on direct welding flange installation, so as not to burn out flowmeter internal components.
2)

A new pipeline must be cleaned after installation or maintenance, can remove impurities in the installation of pipe flow meter.
3)

Meter should be installed in a convenient maintenance, no strong electromagnetic interference, no strong mechanical vibration and the influence of thermal radiation.
4)

Flowmeter is frequently interrupt flow and strong pulsation of the flow or pressure pulsation of the occasion.
5)

Meter outdoor installation, should cover the upper part of the flowmeter, prevent the rain water and strong sunlight affect the service life of the meter.
6)

Consideration should be given to the construction of the pipeline installation extension tube or bellows, lest cause severe nervous or flow meter.
7)

Flow meter should be installed coaxial pipe, seal chamber and butter, prevent to the pipeline.
8)

The use of external power meter must be reliable grounding, may not be in common with large current system, pipeline installation or maintenance may not be the ground and the flowmeter lap welding system.
9)

In order not to affect the normal hydraulic transmission and easy to maintain, install by-pass pipe needs the edge of the flowmeter, and make sure they have 3 d or higher flow meter, at the back of the 1 d or straight.

Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.
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Abstract: ultrasonic flowmeter scale how to install the information produced by excellent flow meter, flow meter manufacturer to offer you the quotation.

Ultrasonic flowmeter display instrument if installed in indoor should choose to avoid interference sources such as frequency conversion control cabinet, power cleaner 220 v due to the installation position of sensor, the state of the pipeline under test has a great influence on the accuracy of measurement, so please choose to satisfy the following conditions.

More flow meter manufacturers choose model price quote you are welcome to inquire, here is a ultrasonic flowmeter scale details how to install the article.

Ultrasonic flowmeter display instrument if installed in indoor should choose to avoid interference sources such as frequency conversion control cabinet, power cleaner 220 v due to the installation position of sensor, the state of the pipeline under test has a great influence on the accuracy of measurement, so please choose the place of the following conditions.

1, pipe roundness is good, the inner surface is smooth, uniform wall.

2, upstream side 5 d, downstream side more than 3 d straight pipe, note & other;
D for pipe diameter & throughout;
。
3, the line must be filled with liquid to be tested.

4, there must be enough space is easy to ultrasonic flowmeter sensor installation and operation.

5, in a horizontal pipe to be tested, the top and bottom of the sensor should not be installed in the pipeline, and avoid uneven pipe and weld.

Ultrasonic flowmeter sensor installation 1, around the intended installation position than, the area of the sensor is about twice as large as the paint on the wall, rust, dirt, such as clean, wipe out the metal should have no uneven.

2, according to figure 1, 2, install fasteners on the pipeline, should be fixed on the pipe with stainless steel belt, should not be loose.

3 good, laying cable from cable access hole to the junction box of the terminals.

4, each ultrasonic flowmeter sensor transducer positive, coated with a thick layer of coupling agent (
Butter)

Transducer, the sensor surface contact with the wall, placed in the fastening components, pressure and the pressure plate will sensor, coupling agent should from the sensors in the cracks around the extrusion, form a sealing strip.

Fastening bolt knob tightly, pay attention to four bolt the strength should be uniform, do not make the sensor offset.

Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.
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Abstract: How to install the vortex flow meter reasonably? The information is provided to you by the excellent manufacturers of flowmeters and flowmeters. The correct installation of the flow measuring instrument is an important part of ensuring the normal operation of the instrument. If it is improperly installed, the accuracy of the instrument will be affected at light, and the service life of the instrument will be seriously affected, and even the instrument will be damaged. Vortex flowmeters are essential in industrial production. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is how to install vortex flowmeters reasonably? Article details. The correct installation of the flow measuring instrument is an important part of ensuring the normal operation of the instrument. If it is improperly installed, the accuracy of the instrument will be affected at light, and the service life of the instrument will be seriously affected, and even the instrument will be damaged. Vortex flowmeter is an indispensable instrument for measuring flowmeters in industrial production. It can measure gases such as superheated steam, nitrogen and other gases, and measure liquids such as water, methanol and so on. Now let's talk about how to install the gas vortex flowmeter correctly. (1) The installation environment requirements of the gas vortex flowmeter: 1. Avoid strong electrical equipment, high frequency equipment, and strong switching power supply equipment as much as possible. The power supply for the instrument is separated from these devices as much as possible. 2. Avoid the direct influence of high temperature heat sources and radiation sources. If it must be installed, heat insulation and ventilation measures must be provided. 3. Avoid high humidity environment and strong corrosive gas environment. If it must be installed, there must be ventilation measures. 4. The vortex flow meter should be installed on pipelines with strong vibration as far as possible. If it must be installed, pipe fastening devices must be installed at 2D upstream and downstream, and anti-vibration pads must be added to enhance the anti-vibration effect. 5. It is best to install the instrument indoors, and pay attention to waterproofing when installed outdoors. Special attention should be paid to bending the cable into a U shape at the electrical interface to prevent water from entering the amplifier housing along the cable. 6. Ample space should be left around the instrument installation point for wiring installation and regular maintenance. (2) Installation requirements for gas vortex flowmeter instrument pipeline: 1. The vortex flow meter has certain requirements on the upstream and downstream straight pipe sections of the installation point, otherwise it will affect the flow field of the medium in the pipeline and affect the measurement accuracy of the meter. The length requirements of the upstream and downstream straight pipe sections of the instrument are shown in Figure (3) Figure (3) Note: The regulating valve should not be installed upstream of the vortex flow meter as much as possible, but should be installed 10D downstream of the vortex flow meter. 2. The inner diameter of upstream and downstream piping should be the same. If there is a difference, the inner diameter Dp of the piping and the inner diameter Db of the vortex meter meter should satisfy the following relationship: 0.98Db≤Dp≤1.05Db The upstream and downstream piping should be concentric with the inner diameter of the flow meter, and the misalignment between them should be less than 0.05Db3. The gasket between the instrument and the flange should not protrude into the pipe during installation, and its inner diameter should be 1-2mm larger than the inner diameter of the meter4. Installation design of pressure measuring holes and temperature measuring holes. When the pipeline under test needs to be installed with temperature and pressure transmitters, the pressure measuring hole should be set at 3-5D downstream, and the temperature measuring hole should be set at 6-8D downstream, see Figure (7). D is the nominal diameter of the instrument, unit: mm5. The instrument can be installed horizontally, vertically or inclined on the pipeline. 6. When measuring gas, install the instrument in the vertical pipeline, and the gas flow direction is not limited. But if the pipeline contains a small amount of liquid, in order to prevent the liquid from entering the measuring tube of the instrument, the air flow should flow from bottom to top, as shown in Figure (4) a 7. When measuring liquid, in order to ensure that the pipe is filled with liquid, when installing the instrument in a vertical or inclined pipe, the flow direction of the liquid should be guaranteed from bottom to top. If the pipeline contains a small amount of gas, in order to prevent the gas from entering the measuring tube of the meter, the meter should be installed at the lower part of the pipeline. As shown in Figure (4) b Figure (4) 8. When measuring high temperature and low temperature media, attention should be paid to thermal insulation measures. The high temperature inside the converter (in the case of the meter head) should generally not exceed 70℃; the low temperature will easily cause condensation inside the converter, reduce the insulation resistance of the printed circuit board, and affect the normal operation of the meter. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'How to install the vortex flow meter reasonably? 》
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Abstract: The information on the principle and installation method of the Doppler acoustic flowmeter for the flow rate of river water is provided by the excellent flowmeter and flowmeter manufacturers. Water conservancy and flood control of natural rivers are related to people's safety and social stability, and flow monitoring is an important part of flood control. Flood control monitoring of small and medium rivers can realize real-time understanding of river water volume, which is of great significance to flood control. At the same time, it saves water sources and regulates the stinginess of the area. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following is the principle and installation method of the river water flow rate Doppler acoustic flowmeter for details. Water conservancy and flood control of natural rivers are related to people's safety and social stability, and flow monitoring is an important part of flood control. Flood control monitoring of small and medium rivers can realize real-time understanding of river water volume, which is of great significance to flood control. At the same time, its functions of saving water sources and regulating regional microclimate also make the country pay more attention to the rational development and utilization of water resources, so it is particularly important to reflect the current situation of water flow in small and medium-sized rivers in a timely, accurate and comprehensive manner. In this case, a provincial hydrological bureau installed DX-LSX-1 Doppler ultrasonic flowmeters in several hydrological bureaus in key river sections to monitor the flow of major medium and small rivers in the province, and to achieve 24-hour online flow monitoring, Monitor the flow changes during the flood season, master the basic information and data of the river, and provide a basis for flood control and drainage. A Doppler ultrasonic flowmeter is an instrument that measures velocity and flow in natural water bodies. It eliminates the need to cut pipes and install in-line sensors like electromagnetic flowmeters, nor to use shutoff devices, let alone install fixed weirs to control the flow of water from a fixed outlet. Just fix it in the direction of water flow, and when the water flow exceeds 2 cm, the comprehensive detection of water flow speed, flow rate and water level can be started. The principle of the DXS-LSX-1 Doppler ultrasonic flowmeter: The Doppler ultrasonic flowmeter uses the velocity area method to measure the flow, and it contains a water level gauge and a flow sensor. When using, input the channel type and parameters into the controller in advance, the controller can use the water level to convert the overflow area by itself, and the water volume can be determined by the overflow area.×Flow calculation. Doppler Ultrasonic Flowmeter Product Features: Wide range: 0.05m/s (flow velocity) Resolution up to 1 mm/s (flow velocity) Long response time, breaking the previous situation that it takes a long time to obtain flow and flow , the measurement results are refreshed from time to time. ●The flow velocity area method is suitable for the whole pipe and the non-full pipe, and the relationship between the water level of the section can be freely set. ●Internal high-precision temperature sensor can be used for water temperature measurement and sound velocity compensation. ●The design of the hydrodynamic shell has little effect on the water flow state and does not affect the measurement accuracy. ●Anti-corrosion shell design, can work for a long time in harsh environment. ●Can provide instantaneous flow value and cumulative flow value. ●No mechanical rotating parts, no sediment clogging or entanglement of aquatic plants and sundries. It is most suitable for river measurement with high suspended sediment content and a large amount of floating substances such as aquatic plants. ●Linear measurement, factory calibration, long-term use does not require calibration. ●Equipped with data receiving software, which can read real-time data and accumulated data. Technical parameters: Flow velocity: Measuring range: 0.05m/s Accuracy: 1.0% 1cm/s Resolution: 1mm/sec Water depth: Measuring range: 0m-5m (can be set higher) Accuracy: 1cm Resolution: 1mm Temperature: Measuring range: -10℃-60℃ Accuracy: 0.5℃, Resolution: 0.1℃ Cross-section flow pattern) Resolution: 0.0001 m/s Power supply: DC 10V-24V Working current: 12V less than 0.1A Output signal: RS485 (Modbus-RTU) Protection class: IP68 Working temperature: 0℃-60℃ (no icing) ) Storage temperature: -10℃-70℃ Equipment material: gray PVC Doppler flowmeter installation method In this case, DX-LSX-1 Doppler ultrasonic flowmeter performs 24-hour online real-time measurement, installation Typical stable location in a natural river hydrological station. In addition to the final flow data, flow and water level data can also be obtained at the same time, which is convenient for users to understand the river water volume and internal flow state, and always maintains a stable working state to help users monitor river flow. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Principle and Installation Method of Doppler Acoustic Flowmeter for Flow Rate of River Water'
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Abstract: Comparative analysis of the pressure loss information of Verabar flowmeters and orifice flowmeters is provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. The theoretical basis for the measurement of these two flowmeters is: in a pipeline filled with fluid, a resistance piece (throttle piece) with a flow area smaller than the cross-sectional area of ​​the pipeline is fixedly placed, and the fluid in the pipeline will pass through the throttle piece. Causes a local contraction, at the contraction. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the details of the pressure loss article on the comparative analysis of Verabar flowmeters and orifice flowmeters. The theoretical basis for the measurement of these two flowmeters is: in a pipeline filled with fluid, a resistance piece (throttle piece) with a flow area smaller than the cross-sectional area of ​​the pipeline is fixedly placed, and the fluid in the pipeline will pass through the throttle piece. Causes local contraction, the flow velocity increases at the contraction, and the static pressure decreases. Therefore, a certain pressure difference will be generated before and after the throttle. For a certain shape and size of the throttling piece, a certain pressure measurement position and straight pipe sections before and after, and certain fluid parameters, the relationship between the differential pressure ΔP before and after the throttling piece and the flow rate Q conforms to the Bernoulli equation. This kind of flow meter inevitably creates a maximum pressure loss in the pipeline. Taking the orifice plate as an example, the main reasons for the loss of fluid pressure are the formation of vortices before and after the orifice plate and the friction of the fluid along the way, which makes part of the total mechanical energy of the fluid irreversibly transformed into heat energy and disappears into the fluid. People use throttling parts such as nozzles and venturi tubes to minimize the eddy current area before and after the throttling parts and reduce the pressure loss of the fluid. Verabar flowmeter adopts a bullet-shaped revolutionary design, which not only maintains high precision, high strength and large turnout ratio in flow measurement, but also greatly reduces pipeline pressure loss. Comparison of pressure loss of Verabar and orifice plate: Empirical formula for pressure loss of orifice plate: Whenβ=0.6, PPLo=0.6×△P whenβ=0.7, PPLo=0.5×△P where:β------- Aperture ratio of orifice plate △P------ Differential pressure generated by orifice plate PPLo-----Pressure loss of orifice plate Standard nozzle pressure loss is about: PPLn=0.28×△P~0.33×△P can be obtained through experiments, the pressure loss of Verabar is about: PPLv=0.03×ΔP Because the differential pressure ΔP of Verabar is an order of magnitude smaller than the differential pressure ΔP of the orifice plate, and the ratio of pressure loss is an order of magnitude smaller, the pressure loss of Verabar is very small compared to the pressure loss of the orifice plate. . Next, we will write the expression of pressure loss: the power loss caused by the pressure loss of the throttling member, and its calculation expression is: Hp’=Q×PPL Among them: Q------fluid volume flow PPL----pressure loss caused by the throttling part Assuming that in order to make up for the irrecoverable pressure loss caused by the throttling part, we add a pressure pump afterwards, The efficiency of the pump is assumed to beη. Then: Hp=Q×PPL÷ηAmong them: Q------------ fluid volume flow AM3/SPPL------ pressure loss KPa generated by throttlingη------Dimensionless constant of motor efficiency Hp------------Power loss KW Example: Take steam measurement as an example, suppose a measurement point, the measurement medium is superheated steam, and the pipe diameter isΦ325×13mm, the pressure is 3900KPaG, and the temperature is 450℃. At this temperature and pressure, the vapor density is 12.511Kg/M3, and the differential pressure generated by Verabar is 5.600KPa when the medium flow is 50T/H. Pressure loss generated by Verabar: PPLv=0.03×△P=0.03×5.600=0.168KPa According to the above formula, power loss: Hp=Q×PPL÷ηBecause the density of superheated steam under working conditions is 12.511Kg/M3, the volume flow rate of medium under working conditions (3900KPaG, 450℃) is: volume flow=mass flow/medium density Q=50×1000÷12.511≈3996.5M3/H=1.110M3/S (3900KPaG, 450℃) assuming motor efficiencyη=0.8: The power lost by Verabar is Hp=1.110×0.168÷0.8=0.233 (KW) Assuming that it runs 365 days a year, 24 hours a day, and the electricity cost per kilowatt-hour is 0.8 yuan, then the annual energy consumption of Weiliba is converted into electricity cost: ￥/year=365×twenty four×0.233×0.8≈1633￥/year Assuming that another same measuring point is measured with an orifice plate, the pressure difference of the orifice plate under the same conditions is 30Kpa, and the pressure difference of the orifice plateβ=0.7, the pressure loss generated by the orifice plate: PPLo=0.5×30=15.0KPa The maximum pressure loss reduction percentage of the Weili Barbie orifice plate is: (15.0-0.168)÷15.0×100%=98.88% It is obvious that it is a high-efficiency and energy-saving uniform flow probe. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Comparative Analysis of Pressure Loss of Verabar Flow Meter and Orifice Flow Meter'
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