Steam compressed natural gas such as nitrogen gas flowmeter

Steam compressed natural gas such as nitrogen gas flowmeter
 

Product description:

Jing Chuan - steam flow - Natural Gas Flowmeter - compressed air meter - nitrogen and other gases special meter turbine flowmeter

Gas Turbine Flowmeter

I. Overview
LWQ type gas turbine flow sensor is a flow meter at home and abroad to learn advanced technology and optimized design, a combination of gas mechanics, fluid mechanics, electromagnetic theory and self-developed a new generation of high-precision, high reliability gas precision measurement instruments, has excellent low and high pressure measurement of performance, a variety of signal output and low sensitivity to fluid disturbances, widely used in measurement of natural gas, coal gas, liquefied petroleum gas, light hydrocarbon gas and other gases. Kind of turbine flow product itself does not with live display, only traffic signal in a manner remote pulse signal output meter low price, high integration, small size, especially for the secondary display device, PLC, DCS and other control systems with the use of a computer. class turbine flowmeter are explosion-proof products, explosion-proof grade: ExdIIBT6.
Second, product characteristics
* High-quality alloy turbine has higher steady flow and corrosion effects
· Imports of high-quality special bearings, long life
· Metering chamber and the breather chamber isolated to ensure the safety of the instrument
· Wide flow range (Qmax / Qmin≥20: 1), good repeatability, high accuracy (up to 1.0), a small pressure loss; low starting flow; can
Up to 0.6m3 / h
· Instruments with explosion-proof and protection; proof mark ExdⅡBT6; ExiaⅡCT6; degree of protection IP65
Third, the instrument classification
1. Press Instrument functional classification LWQ series gas turbine flowmeter can be divided into three categories, namely:
 gas turbine flow sensor / transmitter
 intelligent integration gas turbine flowmeter
 intelligent temperature and pressure compensation integrated gas turbine flowmeter
2. Function Description

• Gas turbine flow sensor / transmitter
Kind of turbine flow product itself does not have on-site display, only traffic signal remote output flow signal can be divided pulse signal or current signal (4-20mA);. Low Meter prices, high integration, small size, especially for and the secondary display device, PLC, DCS and other computer control systems with the use of such turbine flowmeters are explosion-proof products, explosion-proof grade:. ExdIIBT6.
According to different output signals, such products can be divided into LWQ-N- • type and LWQ-A- • Type
LWQ-N- • Type LWQ-A- • Type
display method No site display No site display
Signal output Three-wire pulse output, high ≥8V, low ≤0.8V Condition 4-20mA
Power supply 12 or 24VDC 24VDC
Explosion levels ExdIIBT6 ExdIIBT6
Applications: can be used as working conditions flow signal acquisition instruments, traffic signal remote first bit machine

• intelligent integration gas turbine flowmeter
Integration of smart meters, with double LCD live display, with a compact body, intuitive readings clear, high reliability, without outside power interference, anti-lightning, obvious low cost advantage.
Class turbine flowmeter in accordance with power supply, the availability of remote signal output can be divided into LWQ-B- • type and LWQ-C- • type.
LWQ-B- • Type LWQ-C- • Type
display method Also shows the instantaneous flow work state.
Total cumulative flow
Also shows the instantaneous flow work state.
Total cumulative flow
Signal output no Conditions 4-20mA, pulse condition
Power supply
3V lithium battery
(Applicable to more than four years in a row)
24VDC external power supply
Explosion levels ExdIIBT6 ExdIIBT6
Applications:
1. In the temperature and pressure conditions relatively stable scene, as industrial control instruments
2. In the temperature and pressure conditions relatively stable site, the user can operation to standard conditions based on instrument represents the value of the gas flow equation.

• intelligent temperature and pressure compensation integrated gas turbine flowmeter
LWQ-D type gas turbine meter built-in temperature, pressure sensors and intelligent flow totalizer, through micro-processing unit for real-time acquisition of flow, temperature, pressure signal in accordance with the gas temperature and pressure compensation equation, automatic compression factor correction, and then volume flow under standard conditions intuitive displayed.
※ standard state flow (flow standard conditions): Under 20 ℃, atmospheric pressure gas flow of life
display method Also shows the instantaneous flow rate under standard conditions; daily cumulative flow; total cumulative flow
And temperature; pressure; battery power and other data
Signal output Standard conditions 4-20mA; pulse signal condition; standard conditions pulse signal; IC card signal; RS485 communication protocol
Power supply
Use any built-in lithium and external signal for 24VDC dual power supply, when users do not need
No need for external power supply when the instrument 24VDC output function, the instrument automatically switches to
Built-in lithium battery-powered, the battery power may work for more than three years.
Explosion levels ExdIIBT6
Applications: accurate measurement or trade settlement

Gas Turbine Flowmeter

I. Overview
LWQ Steam Flowmeter - Natural Gas Flowmeter - compressed air meter - nitrogen gas flow meter turbine flow meter dedicated flow meter is learned at home and abroad advanced technology optimized design, a combination of gas mechanics, fluid mechanics, electromagnetic theory The self-developed a new generation of high-precision, high reliability gas precision measurement instruments, it has excellent low and high pressure measurement of performance, a variety of signal output and low sensitivity to fluid disturbances, widely used in natural gas, coal gas metering liquefied petroleum gas, light hydrocarbon gas and other gases. Kind of turbine flow product itself does not have on-site display, only traffic signal in a manner remote pulse signal output. inexpensive instrument price, high integration, small size, especially for . on the secondary display device, PLC, DCS and other computer control systems with the use of such turbine flowmeter are explosion-proof products, explosion-proof grade: ExdIIBT6.
Second, product characteristics
* High-quality alloy turbine has higher steady flow and corrosion effects
· Imports of high-quality special bearings, long life
· Metering chamber and the breather chamber isolated to ensure the safety of the instrument
· Wide flow range (Qmax / Qmin≥20: 1), good repeatability, high accuracy (up to 1.0), a small pressure loss; low starting flow; can
Up to 0.6m3 / h
· Instruments with explosion-proof and protection; proof mark ExdⅡBT6; ExiaⅡCT6; degree of protection IP65
Third, the instrument classification
1. Press Instrument functional classification LWQ series gas turbine flowmeter can be divided into three categories, namely:
 gas turbine flow sensor / transmitter
 intelligent integration gas turbine flowmeter
 intelligent temperature and pressure compensation integrated gas turbine flowmeter

2. Function Description
• Gas turbine flow sensor / transmitter
Kind of turbine flow product itself does not have on-site display, only traffic signal remote output flow signal can be divided pulse signal or current signal (4-20mA);. Low Meter prices, high integration, small size, especially for and the secondary display device, PLC, DCS and other computer control systems with the use of such turbine flowmeters are explosion-proof products, explosion-proof grade:. ExdIIBT6.
According to different output signals, such products can be divided into LWQ-N- • type and LWQ-A- • Type
LWQ-N- • Type LWQ-A- • Type
display method No site display No site display
Signal output Three-wire pulse output, high ≥8V, low ≤0.8V Condition 4-20mA
Power supply 12 or 24VDC 24VDC
Explosion levels ExdIIBT6 ExdIIBT6
Applications: can be used as working conditions flow signal acquisition instruments, traffic signal remote first bit machine

• intelligent integration gas turbine flowmeter
Integration of smart meters, with double LCD live display, with a compact body, intuitive readings clear, high reliability, without outside power interference, anti-lightning, obvious low cost advantage.
Class turbine flowmeter in accordance with power supply, the availability of remote signal output can be divided into LWQ-B- • type and LWQ-C- • type.
LWQ-B- • Type LWQ-C- • Type
display method Also shows the instantaneous flow work state.
Total cumulative flow
Also shows the instantaneous flow work state.
Total cumulative flow
Signal output no Conditions 4-20mA, pulse condition
Power supply
3V lithium battery
(Applicable to more than four years in a row)
24VDC external power supply
Explosion levels ExdIIBT6 ExdIIBT6
Applications:
1. In the temperature and pressure conditions relatively stable scene, as industrial control instruments
2. In the temperature and pressure conditions relatively stable site, the user can operation to standard conditions based on instrument represents the value of the gas flow equation.

• intelligent temperature and pressure compensation integrated gas turbine flowmeter
LWQ-D type gas turbine meter built-in temperature, pressure sensors and intelligent flow totalizer, through micro-processing unit for real-time acquisition of flow, temperature, pressure signal in accordance with the gas temperature and pressure compensation equation, automatic compression factor correction, and then volume flow under standard conditions intuitive displayed.
※ standard state flow (flow standard conditions): Under 20 ℃, atmospheric pressure gas flow of life
display method Also shows the instantaneous flow rate under standard conditions; daily cumulative flow; total cumulative flow
And temperature; pressure; battery power and other data
Signal output Standard conditions 4-20mA; pulse signal condition; standard conditions pulse signal; IC card signal; RS485 communication protocol
Power supply
Use any built-in lithium and external signal for 24VDC dual power supply, when users do not need
No need for external power supply when the instrument 24VDC output function, the instrument automatically switches to
Built-in lithium battery-powered, the battery power may work for more than three years.
Explosion levels ExdIIBT6
Applications: accurate measurement or trade settlement

Details
1. Basic parameters:
Table 1
Meter diameter (mm) and connections
2540506580100125150200250300 flange connection 2540 can be screwed
Accuracy class ± 1.5% R, ± 1% R, ± 0.75% R (special needs)
Turndown ratio 1: 10: 1: 20: 1: 30
Meter Materials Body: 304 stainless steel; Impeller: ABS or high-quality aluminum alloy corrosion; display: Aluminum
Measured medium temperature (℃) -30℃~+80℃
Environmental conditions Temperature: -20 ℃ ~ + 60 ℃; Relative humidity 5% to 90%; Atmospheric pressure 86 ~ 106KPa
output signal Sensor: Pulse frequency signal, low ≤0.8V high ≥8V
Transmitter: two-wire current signal ~ 20mADC
Power supply Sensor: + 12VDC, + 24VDC (optional)
Transmitter: + 24VDC
Site display type: the instrument comes with 3V lithium battery
Signal transmission lines
Transmission distance STVPV3 * 0.3 (three-wire), 2 * 0.3 (two-wire)
Signal line interface ≤1000m
Explosion levels Internal thread M20 * 1.5
Protection class ExdIIBT6
IP65

2. Measuring range and working pressure

Table 2
Nominal diameter
(Mm)
model Standard range
(M3 / h)
Extended Range
(M3 / h)
Pressure Level
(MPa)
Installation
DN25 LWQ-25 • ―― W3 0.5-4 4.0 Flange (thread)
―― W4 0.7-7 4.0
―― W5 1.5-15 4.0
S1 3-30
W1 1.5-30 4.0
S2 4-40
W2 2-40 4.0
DN40 LWQ-40 • S1 5-50 W1 2.5-50 4.0 Flange (thread)
S2 8-80 W2 4-80 4.0
DN50 LWQ-50 • S1 10-100 W1 5-100 4.0 Flange
S2 15-150 W2 8-150 4.0 Flange
DN65 LWQ-65 • S 15-200 W 10-200 1.6 Flange
DN80 LWQ-80 • S 15-300 W1 10-300 1.6 Flange
W2 15-350 1.6 Flange
DN100 LWQ-100 • S 20-400 W1 15-400 1.6 Flange
W2 20-500 1.6 Flange
DN125 LWQ-125 • S 20-800 W1 18-800 1.6 Flange
W2 20-900 1.6 Flange
DN150 LWQ-150 • S 50-1000 W1 25-1000 1.6 Flange
W2 50-1200 1.6 Flange
DN200 LWQ-200 • S 150-2000 W 80-2500 1.6 Flange
DN250 LWQ-250 • S 200-3000 W 150-3500 1.6 Flange
DN300 LWQ-300 • S 250-4000 W 200-4000 1.6 Flange
Note 1: Table 2. 'Standard Range' is marked as a universal measuring range measuring range; (that is applicable to: LWQ-N / A / B / C / D)
Note 2: Table 2 'extended range' label was measured in the range of limited use 'intelligent integration gas turbine flowmeter' or 'intelligent temperature and pressure compensation integrated gas turbine flowmeter (that applies to: LWQ-B / C / D)
Selection Help
Users in the selection should be based on the pipe nominal pressure, maximum pressure medium, medium temperature, medium components, flow range and signal output requirements reasonable choice flowmeter model specifications.
To make the best use of the performance of the meter, use the flow meter should be within the range (20% ~ 80%) Qmax range is appropriate.
Signal output meter factory: working conditions pulse signal output (three-wire), the standard flow rate signal (IC card) output or RS-485 communication output if required other output functions, please specify when ordering.

TABLE 3
model
Explanation
LWQ- ―• /• /• /•
meter
Types of
N Sensor Type: + 12V or 24V power supply, three-wire output pulse signal
A Transmitter type: + 24V power supply, two-wire 4 ~ 20mA output
B Smart: lithium battery-powered, live shows no signal output
C Smart: + 24V power supply, live shows and a two-wire 4 ~ 20mA output
D All intelligent: temperature and pressure compensation integrated, on-site and remote signal display
Nominal diameter and
Range
25 DN 25mm
40 DN 40 mm
50 DN 50 mm
65 DN 65 mm
80
DN 80 mm
100
DN 100 mm
125
DN 125 mm
150
DN 150 mm
200
DN 200 mm
250
DN 250 mm
300 DN 300 mm
Range W (x)
Extended range, see table on page 2 Select Px
S (x)
Standard range, see table on page 2 Select Px
Body Material S stainless steel
L Aluminum
Movement Material S ABS anti-corrosion
L Aluminum
N No specific structure
A Oxygen dedicated
B Compressed air special
Example: use of a stainless steel; temperature and pressure compensation integrated gas turbine flowmeter to measure oxygen; users working conditions measuring range 3-50m3 / h; Model: LWQ-D-40W1 / S / S / A
Installation size:
Flowmeter shape as shown, the specific dimensions shown in Table 6

Note: 1 shows the temperature and pressure compensation type instrument outline drawing.
All models of the same caliber instrument sensor the same size portions.

Table 6
Path mm
L
B
K
n
d
Bolt Specifications
Conventional pressure MPa
DN25
170
115
85
4
φ14
M12*50
4.0
DN 40
200
150
110
4
φ18
M16*55
DN 50
220
165
125
4
φ18
M16*60
DN 65
220
185
145
4
φ18
M16*65
1.6
DN 80
240
200
160
8
φ18
M16*70
DN 100
300
220
180
8
φ18
M16*80
DN 125
240
250
210
8
φ18
M16*80
DN 150
450
285
240
8
φ22
M20*80
DN 200
500
340
295
12
φ22
M20*90
DN 250
500
403
355
12
φ26
M24*90
DN 300
500
460
410
12
φ26
M24*100