Vortex flowmeter is based on Karman's vortex street principle research and is mainly applied to flow measurement of industrial pipeline medium fluid, such as gas, liquid, steam and other media. It is characterized by low pressure loss, large measuring range, high accuracy, and almost no influence of parameters such as fluid density, pressure, temperature, and viscosity when measuring volume flow. Therefore, it is commonly used in petroleum, chemical, electric power, light industry and other industrial pipelines to measure the flow of liquid or gas. It can also be used to measure the flow of fluids in urban water supply, heating, boiler water supply and medical industry. Vortex flowmeter is characterized by no moving mechanical parts, so it has high reliability and low maintenance. Instrument parameters can be stable over a long period of time. The vortex flowmeter uses a piezo-electric stress sensor, which has high reliability and can work in the operating temperature range of -20°C to +250°C. There are analog standard signals and digital pulse signals output. It is easy to use with digital systems such as computers. It is a relatively advanced and ideal measuring instrument.
1. Measuring medium: gas, liquid, steam
2. Connection method: flange card type, flange type, plug-in type
3, caliber specifications flanged card-caliber selection 25,32,50,80,100
4ã€Flange connection caliber selection 100,150,200
5, flow measurement range normal measurement flow rate range Reynolds number 1.5 × 104 ~ 4 × 106; gas 5 ~ 50m / s; liquid 0.5 ~ 7m / s
The normal measurement flow range of liquid, gas flow measurement range shown in Table 2; steam flow range see Table 3
6, measurement accuracy 1.0 1.5
7, measured medium temperature: room temperature -25 °C ~ 100 °C, high temperature -25 °C ~ 150 °C -25 °C ~ 250 °C
8, the output signal pulse voltage output signal high 8 ~ 10V low 0.7 ~ 1.3V
9, pulse duty cycle is about 50%, transmission distance is 100m
10〠Pulse current remote transmission signal 4～20 mA, transmission distance is 1000m
11, the instrument using the ambient temperature: -25 °C ~ +55 °C Humidity: 5 ~ 90% RH50 °C
12, material stainless steel, aluminum alloy
13, power supply DC24V or lithium battery 3.6V
14, Explosion-proof grade intrinsically safe type iaIIbT3-T6, protection grade IP65
Let's talk about the wiring diagram of the vortex flowmeter manufactured by Changzhou Liangbang Meter:
LUGB vortex flowmeter local display and two-wire 4~20mA output wiring diagram
1. Under normal circumstances, the connection of vortex flowmeter and intelligent flow integrator adopts three-core shielding (RVVP3*0.75mm) shielding layer should be reliably connected to the grounding screw in the amplifier box.
2. The connecting line cannot be discharged together with the power line, at least 50cm apart, and it is best to walk through the metal pipe alone. The connection cable should be fixed and cannot be shaken.
Physical wiring diagram:
Physical installation diagram:
Vortex flowmeter and pressure temperature compensation and intelligent flow totalizer wiring diagram:
Changzhou Liangbang Instrument Co., Ltd. is located in Tianning Economic Development Zone, Changzhou City, Jiangsu Province. It is close to Shanghai-Nanjing Expressway and Beijing-Shanghai high-speed railway. It is only 30 kilometers away from Changzhou Airport and Yangtze River Terminal. The transportation is very convenient. Our company is a manufacturer with years of experience in manufacturing, design, R&D, sales and processing. We manufacture glass rotor flowmeters, metal tube float flowmeters, electromagnetic flowmeters, smart turbine flowmeters, vortex flowmeters, magnetic flap level gauges, pressure gauges, bimetal thermometers, and other popular consumer markets, in consumers With a high status, the company has established a long-term and stable cooperative relationship with a number of retailers and agents.
My company covers an area of ​​20,000 square meters, construction area of ​​9000 square meters, all kinds of processing equipment, fully meet the needs of various types of production processes. My company has a complete and scientific quality management system. The introduction of advanced German production equipment and production process flow meter. All products produced are actually calibrated and tested on water flow and gas flow detection equipment. Our company's integrity, strength and product quality have been recognized by the industry. We have a professional sales team and after-sales service to professionally select and customize flowmeters for you to solve all your problems with dedicated services.
Air Preheaters (APH)
An air preheater (APH) is a device used to heat air, commonly used in industrial boilers, thermal power plants, and other thermal energy facilities. APH improves the thermal efficiency of the boiler by transferring heat from the flue gas to the air entering the boiler through heat exchange with it.
APH usually consists of a Heat Exchanger with a number of parallel pipes inside the exchanger through which smoke and air flow to allow heat exchange. In APH, the smoke flows on the outside of the heat exchanger and the air flows on the inside so that the heat between the smoke and the air can be transferred through the pipe walls.
The main business scope is various heaters, waste heat boilers, pressure vessels, supportingair preheaters, air coolers, furnace accessories and accessories, and provide equipment installation, with EPC ability of projects. At present, our customers have covered all large and medium-sized petrochemical enterprises in China and established long-term strategic cooperative partnership with them. Products are exported to Southeast Asia, Middle East, and other regions.
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