KH-LWGY turbine flowmeter (butylene meter) is the speed of the main types of flow meters, turbine flow meters are widely used to measure the petroleum, chemical, metallurgy, research and other fields, the control system. It uses a multi-blade rotor (turbine) the average velocity of the fluid feel, and deduced from the flow meter or total. It is generally cited by the sensor and the display device composed of two parts, can also be made integral. LW turbine meter lead and positive displacement flowmeters, Coriolis mass flow meter flowmeter called three repeatability, precision best products, as one of the ten types of flow meters, and its products have been developed for multi-species scale multi-volume series. First, the structure and principle butene flowmeter frames: a fluid flows into the housing from the inlet through the bracket a pair of bearings fixed to the tube central axis, a turbine mounted on bearings. Rectifying plate provided with radial upstream and downstream of the turbine in the bracket, to act as guides for the fluid, in order to avoid effect of changes of spin fluid turbine blade angle. In the top of the turbine housing is equipped with an external sensor coil, the magnetic flux change signal is received. Second, butene flowmeter features flowmeter applications: oil, organic liquids, inorganic liquid, liquefied petroleum gas, natural gas, cryogenic liquids. Highly accurate, generally up to ± 1% R, ± 0.5% R, high-precision up to ± 0.2% R; reproducible, short-term repeatability of up to 0.05% to 0.2%, it is due to good reproducibility such as frequent calibration or online high accuracy calibration available in trade settlement is the preferred flow meter; the output pulse frequency signal, suitable for the measurement of total and connected to your computer, no zero drift, anti-jamming capability; availability of high frequency signals (3 ~ 4kHz), signal resolution and strong; a wide range of degrees, medium and large caliber up to 1:20, small caliber 1:10; Compact and lightweight construction, easy installation and maintenance, flow capacity; suitable for high pressure measurement, the meter body does not have to cut, easy to type instrument made of high pressure; special type of sensor types, can be designed for all kinds of special-type sensor according to the special needs, such as low temperature, two-way type, mine type, sand special type, etc; can be made to insert type, suitable for large diameter measurement, pressure loss, low price, do not remove the drying, easy installation and maintenance. Third, butene 1 meter classification. By instrumentation functional classification, KH-LWGY Series turbine flowmeter can be divided into two categories, namely: ■ turbine flow sensor / transmitter ■ intelligent integration turbine flowmeter 2. Functional Description turbine flow sensor / transmitter such turbine flow product itself does not have on-site display, only traffic signal remote output. Traffic signals can be divided pulse signal or current signal (4-20mA); inexpensive instrument price, high integration, small size, especially for the secondary display device, PLC, DCS and other control systems with the use of a computer. Such products are divided into basic turbine flow type and explosion-proof (ExdIIBT6) two kinds of basic shape shown in Figure 1 sensor / transmitter 2 Ex-sensor / transmitter output signals according to different, these products can be divided KH-LWGY-N-type and KH-LWGY-A type KH-LWGY-A transmitter: 24VDC power supply, wire 4-20mA output signal transmission distance ≤1000. KH-LWGY-N-type sensors: 12 ~ 24VDC power supply, three-wire pulse output, high ≥8V, low ≤0.8V; signal transmission distance ≤1000 meters; intelligent integration turbine flowmeter uses advanced ultra-low power consumption of single-chip microprocessor technology developed turbine flow sensor and display totalizer integration of new smart meters, with double LCD display scene, with a compact body, intuitive readings clear, high reliability, free from outside interference power, anti-lightning, costs low obvious advantages. Meter with three o'clock meter factor correction coefficient nonlinear intelligent compensation instrument, and can be corrected on-site. High-definition LCD display also shows the instantaneous flow rate (four significant figures) and the cumulative flow (8 significant digits, with a clear function). All valid data after power is not lost for 10 years. Class turbine flowmeter are explosion-proof products, explosion-proof grade: ExdIIBT6. Figure 3 Figure 4 intelligent integration turbine flowmeter turbine flowmeter intelligent integration with HART communication KH-LWGY-B Type: Power supply using 3.2V10AH lithium battery (can run continuously for more than 4 years); no signal output function. Class turbine flowmeter in accordance with power supply, the availability of remote signal output can be divided into the KH-LWGY-B-type and KH-LWGY-C type KH-LWGY-C Type: Power supply with 24VDC external power supply, the output 4-20mA standard two-wire current signal, and depending on the site requirements, increase RS485 or HART communication. Fourth, butene flowmeter technology parameters: Schedule nominal diameter: Pipeline: DN4 ~ DN200 plug-in: DN100 ~ DN2000 Accuracy: Pipeline: ± 0.5 级, ± 1.0 stage interleaving type: ± 1.5 级, ± 2.5 level environment Temperature: -20 ℃ ~ 50 ℃ Medium temperature: Measurement of liquid: -20 ℃ ~ 120 ℃ Measuring gas: -20 ℃ ~ 80 ℃ Atmospheric pressure: 86KPa ~ 106KPa Nominal pressure: 1.6 Mpa, 2.5Mpa, 6.4Mpa, 25Mpa Explosion levels : ExdIIBT4 Connection: threaded connection, flange clamp, flange, plug-in, such as straight pipe requirements: Gas: Upstream straight pipe should ≥10DN, downstream straight pipe should ≥5DN liquid: upstream straight pipe should ≥20DN, downstream straight pipe should ≥5DN insert: Upstream straight pipe should ≥20DS, downstream straight pipe should ≥7DS (DS was measured inside diameter of the pipe) Display: (1) Remote Display: Pulse output, current output (with indicator) (2) Field Display: 8 LCD display cumulative flow units (m3) 4-digit LCD display instantaneous flow units (m3 / h), battery power, frequency, velocity (3) temperature and pressure compensation type: A, shows the standard instantaneous flow and standard cumulative flow B, the current pressure, temperature, battery voltage output function: (1) pulse output, pp value is determined by the power supply (2) 4 ~ 20mA two-wire current output (3) per unit volume of the original pulse output and pulse output sensors (4) with RS485 communication interface Power supply: (1) DC5 ~ 24V (2) standard 3V lithium batteries installed in the inside of the instrument can be used continuously for more than eight years (3) temperature and pressure compensation type 3V lithium batteries installed in the inside of the instrument can be used continuously for more than four years Transmission distance: distance from the sensor to the display device model normal flow range up to 500m m3 / h limit the expansion of the scope of m3 / h Working pressure MPa G-type working pressure MPa Z-type working pressure MPa D type Nominal working pressure MPa Trail MM KH-4 0.04-0.25 6.4 2.5 4 KH-6 0.1-0.6 6.4 2.5 6 KH-10 0.2-1.2 25 25 2.5 10 KH-15 0.7-6 0.6-6 32 32 6.4 2.5 15 KH-25 1.2-10 1-10 50 25 50 6.4 2.5 25 KH-40 2.5-20 2-20 50 25 50 6.4 2.5 40 KH-50 5-40 4-40 50 2.5 50 6.4 2.5 50 KH-80 12-100 10-100 32 2.5 32 6.4 2.5 80 KH-100 25-200 20-200 32 2.5 6.4 2.5 100 KH-150 50-400 40-400 25 1.6 6.4 2.5 150 KH-200 100-800 80-800 25 1.6 6.4 2.5 200 KH-250 150 -1200 120-1200 25 1.6 6.4 2.5 250 KH-300 300-2500 250-2500 1.6 6.4 2.5 300 V, butene-meter installation requirements: 1, turbine flowmeter installation flange connection, threaded connections and clamp-on; 2. When installing the flow direction should be consistent with the direction of the arrow indicates the sensor housing flows, and the upstream straight pipe should ≥6DS, downstream straight pipe should ≥5DS (DS was measured for the pipe diameter). 3, the sensor should be away from the external magnetic field, if not avoided, should take the necessary measures; 4, in order not to affect the maintenance of normal transmission fluid, you should install a bypass pipe (Figure IV) at the outer ends of the straight pipe sensor; 5 When the sensor outdoor installation, please do zoom waterproof plug; the? 6, sensors and display instrumentation wiring, should be selected according to the power amplifier wiring. First, we are responsible for packing and shipping the product packaging, transportation, during transport box should not have a collision, scratch. Packing and strictly in accordance with the relevant national norms. Second, technical documentation, warranty and service information, including a product samples, brochures, certificates of each four; two suppliers responsible for the free installation guide, until normal use; three supply-side commitments for owner free maintenance personnel were trained to operate;