Temperature pressure compensation type gas turbine flowmeter

NegotiableUpdate on 11/19

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

Product Details

The TWBQ gas turbine flow sensor is a new generation of high-precision and highly reliable gas precision measuring instrument that has been independently developed and optimized by drawing on advanced technology of flow instruments at home and abroad, integrating theories of gas mechanics, fluid mechanics, electromagnetics, etc. It has excellent low-pressure and high-pressure measurement performance, multiple signal output modes, and low sensitivity to fluid disturbances. It is widely used for measuring gases such as natural gas, coal to gas, liquefied gas, and light hydrocarbon gas. This type of turbine flow product itself does not have on-site display function, and only transmits flow signals in the form of pulse signals for remote output. The instrument is inexpensive, highly integrated, and compact in size, making it particularly suitable for use with computer control systems such as secondary displays, PLCs, and DCS. This type of turbine flowmeter is an explosion-proof product with an explosion-proof rating of ExdIIBT6
Intelligent temperature and pressure compensation integrated gas turbine flowmeter
The TWBQ-D gas turbine flowmeter is equipped with temperature and pressure sensors, as well as an intelligent flow integrator. Through a microprocessor unit, the real-time collected flow, temperature, and pressure signals are compensated for temperature and pressure according to the gas equation, and the compression factor is automatically corrected. Then, the volumetric flow rate under standard conditions is displayed intuitively.
Standard condition flow rate (standard condition flow rate): refers to the gas flow rate at 20 ℃ and atmospheric pressure in daily life

display mode	Simultaneously display instantaneous flow, daily cumulative flow, and total cumulative flow under standard conditions And data such as temperature, pressure, battery level, etc
signal output	Standard condition 4-20mA, working condition pulse signal, standard condition pulse signal, IC card signal, RS485 communication protocol
power supply	Adopting a dual power supply method of built-in lithium battery and external 24VDC, when users do not require any signal The output function does not require external power supply of 24VDC to the instrument, and the instrument automatically switches to Built in lithium battery power supply, the battery capacity can work continuously for more than 3 years.
Explosion-proof rating	ExdIIBT6

Application scenario: Accurate measurement or trade settlement
Basic parameters: Table 1

Instrument diameter (mm) and connection method	25, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300 are connected by flanges 25 and 40 can be connected using threaded connections
accuracy class	± 1.5% R, ± 1% R, ± 0.75% R (to be customized)
turndown ratio	1:10:1:20:1:30
Instrument material	Table body: 304 stainless steel; Impeller: anti-corrosion ABS or high-quality aluminum; Monitor: Cast aluminum
Temperature of the tested medium (℃)	-30℃～+80℃
environmental conditions	Temperature: -20 ℃~+60 ℃, relative humidity 5%~90%, atmospheric pressure 86~106KPa
output signal	Sensor: Pulse frequency signal, low level ≤ 0.8V, high level ≥ 8V Transmitter: Two wire system~20mADC current signal
power supply	Sensor:+12VDC,+24VDC (optional) Transmitter:+24VDC On site display type: The instrument comes with a built-in 3V lithium battery
Signal transmission line	STVPV3 × 0.3 (three wire system), 2 × 0.3 (two wire system)
transmission distance	≤1000m
Signal line interface	Internal thread M20 × 1.5
Explosion-proof rating	ExdIIBT6
Protection level	IP65

Measurement range and working pressure gauge 2

caliber （mm）	model	Standard range （m3/h）		Expand range （m3/h）		atmospheric pressure （MPa）	High pressure (MPa)	Installation method
DN25	TWBQ-25	S	2.5—25	W1	4-40	1.6	2.5/4.0	Flange (thread)
DN40	TWBQ-40	S	5-50	W1	2.5-50	1.6	2.5/4.0	Flange (thread)
DN50	TWBQ-50	S1	6-65	W1	5-70	1.6	2.5/4.0	flange
				W2	8-100
DN65	TWBQ-65	S	15-200	W1	10-200	1.6	2.5/4.0	flange
DN80	TWBQ-80	S	15-250	W1	10-160	1.6	2.5/4.0	flange
				W2	20-400	1.6		flange
DN100	TWBQ-100	S	20-400	W1	13-250	1.6	2.5	flange
				W2	32-650
DN125	TWBQ-125	S	25-700	W1	20-800	1.6	2.5	flange
DN150	TWBQ-150	S	32-650	W1	50-1000	1.6	2.5		flange
				W2	80-1600
DN200	TWBQ-200	S	80-1600	W1	50-1000	1.6	flange
				W2	130-2500
DN250	TWBQ-250	S	130-2500	W1	80-1600	1.6	flange
				W2	200-400
DN300	TWBQ-300	S	200-4000	W1	130-2500	1.6	flange
				W2	320-6500

Note 1: The measurement range indicated in "Standard Range" in Table 2 is the general measurement range;
Note 2: The measurement range indicated in "Extended Range" in Table 2 is only applicable to "Intelligent Integrated Gas Turbine Flow Meter" or "Intelligent Temperature and Pressure Compensation Integrated Gas Turbine Flow Meter" (i.e. applicable to TWBQ/C/D)

1. Selection instructions: When selecting, users should reasonably choose the model and specifications of the flowmeter based on the nominal pressure of the pipeline, the maximum pressure of the medium, the temperature of the medium, the composition of the medium, the flow range, and the signal output requirements.
To achieve optimal performance of the flowmeter, the flow rate range should be within the Qmax range of (20% to 80%), which is more appropriate.
The signal output mode of the flowmeter at the factory: working condition pulse signal output (three wire system), standard flow signal (IC card) output, or RS-485 communication output. If other output functions are required, please specify when placing an order.