Vortex Flowmeter
Vortex flowmeter is a speed flow meter based on the theory of natural vibration of fluid and piezoelectric crystal or differential capacitor as the detection component. This product adopts unique differential technology, with isolation, shielding, filtering and other measures, to overcome the same products of poor seismic resistance, large noise, small signal data disorder and other problems, and adopts a unique detection probe packaging new technology and protective measures, to ensure the reliability of the product.
Description
Vortex street flowmeter is a speed flow meter based on the theory of natural vibration of fluid and piezoelectric crystal or differential capacitor as the detection component.
This product adopts unique differential technology, with isolation, shielding, filtering and other measures, to overcome the same products of poor seismic resistance, large noise, small signal data disorder and other problems, and adopts a unique detection probe packaging new technology and protective measures, to ensure the reliability of the product.
The product has three measurement types: basic type, differential pressure type and temperature and pressure compensation. The basic type measures the flow signal of single working condition, the differential pressure compensation type directly measures the mass flow, the temperature and pressure compensation can measure the temperature, pressure and flow signal at the same time, and output the standard volume flow or mass flow after compensation.
The product has two structural types of pipe type and insert type, can be displayed on site, can also be long distance transmission, each type has high temperature, high pressure, anti-corrosion, explosion-proof and other specifications, and integral and split structure, to adapt to different measurement media and installation environment.
The instrument has a series of advantages, such as wide range ratio, high accuracy, convenient installation and maintenance, and wide medium adaptability. It can be widely used in petroleum,chemical industry, metallurgy, machinery, food, paper making, medicine, as well as urban pipeline heating, water supply, gas and other industries of various low viscosity liquid, gas, steam and other single-phase fluid process measurement and energy saving management.
Product Parameters
Structure
① flange ② binding bolt ③ table body ④ vortex generator ⑤ detection probe ⑥ watch rod ⑦ locknut ⑧ amplifier shell
Features
• The structure is simple and firm, no moving parts, long service life, small pressure loss, low operating cost.
• New structural design of mechanical vibration resistance, shock resistance and dirt resistance is adopted.
• It achieve high exchangeability and versatility from the detection probe to the transport discharge path.
• The circuit adopts surface mounting process, with compact structure and high reliability.
• Set the menu according to the general operation principle, and use Chinese characters to prompt, clear and intuitive, simple to operate.
• Within a certain range of Reynolds number, the output signal is not affected by the physical properties of the changes and components of the measured medium, and the instrument coefficient is only related to the shape and size of the vortex body, so it is generally not necessary to reciliate the instrument coefficient after replacing the accessories.
• The 12864 full dot matrix LCD display with fine low power consumption displays the instantaneous flow and cumulative flow, and compensates the measured temperature and pressure, and the data is rich and intuitive.
• It has the multipoint linear correction function and greatly improves the measurement accuracy. After using the high-speed algorithm of single pulse and pulse by pulse measurement, the compression or broadening calculation is only delayed one by one time, to achieve complete real-time linear compensation, this performance reaches the world’s leading level.
• The differential pressure compensation vortex street mass flowmeter can directly measure the mass flow rate, which is not affected by the medium component or the dry degree change,and the measurement accuracy is higher.
• The temperature and pressure compensation built-in or external sensor automatically corrects temperature and pressure, directly converting the working condition flow into mass flow or volume flow under standard state. The measurement is simple and accurate, and 12 compensation algorithms can meet almost meet all flow compensation requirements.
Installation
Nominal diameter | Instrument length | Instrument height | Installation flange | Install bolts | Piping specifications | ||||
Outer diameter of flange | Flange thickness | Bolt hole spacing | Bolt aperture | Number of bolts | Bolt specifications | ||||
15 | 180 | 415 | 95 | 14 | 65 | 14 | 8 | M12×60 | φ18×1.5 |
20 | 180 | 420 | 105 | 16 | 75 | 14 | 8 | M12×60 | φ25×2.5 |
25 | 180 | 425 | 115 | 16 | 85 | 18 | 8 | M12×60 | φ32×3.5 |
32 | 180 | 435 | 140 | 18 | 100 | 18 | 8 | M16×70 | φ39×3.5 |
40 | 180 | 435 | 150 | 18 | 110 | 18 | 8 | M16×70 | φ48×4 |
50 | 180 | 440 | 165 | 20 | 125 | 18 | 8 | M16×70 | φ59×4.5 |
65 | 180 | 460 | 185 | 20 | 145 | 18 | 8 | M16×70 | φ74×4.5 |
80 | 200 | 490 | 200 | 20 | 160 | 18 | 16 | M16×70 | φ89×4.5 |
100 | 220 | 510 | 220 | 22 | 180 | 18 | 16 | M16×80 | φ109×4.5 |
125 | 240 | 535 | 250 | 22 | 210 | 18 | 16 | M16×80 | φ134×4.5 |
150 | 270 | 570 | 285 | 24 | 240 | 22 | 16 | M20×80 | φ159×4.5 |
200 | 300 | 625 | 340 | 26 | 295 | 22 | 24 | M20×90 | φ219×9 |
250 | 320 | 685 | 405 | 28 | 355 | 26 | 24 | M24×100 | φ273×22 |
300 | 350 | 710 | 460 | 32 | 410 | 26 | 24 | M24×100 | φ325×12 |
350 | 370 | 790 | 520 | 38 | 470 | 26 | 32 | M24×115 | φ377×13 |
400 | 400 | 845 | 580 | 42 | 525 | 30 | 32 | M27×120 | φ426×13 |
Note:
1. The above parameters are only applicable to the vortex street flow meter with the following pressure specification of 1.6MPa.
2. The length of the instrument is standard size, and the length of the integrated pressure compensation instrument is increased by 50mm.
3. Flange connected vortex street flowmeter is not equipped with pipe flange and bolts when leaving the factory, and users need to buy separately. The standard of connecting flange is GB / T9119-2000 flat welded steel pipe flange.
Model And Specification
Vortex street flow meter type spectrum | Explain | |||||||||
HLB HLE | Piezoelectric vortex flowmeter Capacitive vortex flowmeter | Instrument type | ||||||||
2 3 4 5 6 7 8 | Flange clamp type Flange connection type Pipe butt welding type Threaded connection type Clamp connection type Fixed plug-in type Ball valve plug-in type | Way to install | ||||||||
2 3 4 | Liquid Gas Steam | Measurement medium | ||||||||
-X | The nominal diameter of the flow meter is represented by 2-4 Arabic numerals For example, DN200 is represented by 200 | Inside nominal diameter | ||||||||
-2 -3 -4 -5 -6 -7 -8 -9 | No display of pulse frequency signal Pulse frequency signal band display Battery powered on-site display Two wire system 4~20mA signal without display Two wire system 4~20mA signal band display Two wire system 4~20mA signal with HART communication Three wire system 4~20mA signal band display Three wire system 4~20mA signal with RS485 communication | Output signal | ||||||||
2 3 4 5 6 | -50 ℃~50 ℃ (capacitive only) -20 ℃~50 ℃ 50 ℃~250 ℃ 50 ℃~320 ℃ 50 ℃~500 ℃ (capacitive only) | Temperature specification | ||||||||
2 3 4 5 6 | 1.6 Mpa 2.5 Mpa 4.0 Mpa 6.4 Mpa Higher pressure specifications (up to 32 Mpa) | Pressure specifications | ||||||||
M P T PT | Differential pressure compensation type Pressure compensation type Temperature compensation type Temperature and pressure compensation type | Compensation type | ||||||||
F Q S N G B Y | Split type Diving type Scale type Corrosion resistant type Explosive type Benan explosion-proof type Integrated compensation type | Other options | ||||||||
HLE | 3 | 4 | -80 | -6 | 6 | 3 | M | Y | Integrated capacitive differential pressure vortex street mass flowmeter,flange connection type, medium less than 500 ℃ steam, DN 80, PN 25, current signal output band display. | |
Reviews
There are no reviews yet.