ZWIN-TPF06 Velocimeter Monitor

Overview

The ZWIN-TPF06 Velocimeter monitor has a high-precision differential pressure/static pressure sensor, and is equipped with a backflush and zero standard unit. pressure, and flow rate monitors, which meet the requirements of relevant national standards, can be used in the smoke emission monitoring system (CEMS) for real-time continuous measurement of flue gas temperature, pressure, flow rate and velocity.

Principle

The structure of the temperature-pressure-flow integrated measurement device mainly includes a differential pressure transmitter, a thermal resistance (or thermocouple), a pitot tube, a blowback solenoid valve, temperature and pressure compensation, etc. Its measurement principle is: The primary pressure-taking element adopts the traditional Pitot tube measurement method. After the correct installation, the full-pressure and back-pressure pressure-taking tubes of the Pitot tube transmit the detected dynamic pressure and static pressure to the differential pressure transmitter respectively. , the differential pressure transmitter converts the difference between the dynamic pressure and the static pressure into a 4-20mA root proportional current and sends it to the data acquisition module of the distribution box, and the computer in the CEMS cabinet performs data processing. The inner and outer surfaces of the pitot tube are specially treated to effectively avoid flue gas corrosion and reduce dust adhesion. The backflush solenoid valve is mainly used for system backflush when measuring dirty gas (such as flue gas discharged from a boiler): when the probe detection hole adheres and accumulates dust and dirt, the solenoid valve opens at regular intervals or according to a predetermined program, and the compression.The air is connected to two pressure pipes at the same time for blowing operation, and the solenoid valve is in the off state during normal measurement.

Feasures

It can measure the temperature, pressure and flow rate of flue gas in real time, through 3 analog signals 4~20mA, 1 channel 485, 2 channels open output at the same time.

The dynamic pressure and static pressure end of the Pitot tube is blown back at automatic timing, and the zero mark is automatically timing.

High measurement accuracy, good reliability, and can work continuously for a long time.

Convenient installation and wiring, low maintenance, one person can easily carry it to the platform for installation.

Support manual, cabinet remote, system timing automatic zero mark, back blowing and other actions.

Support the switching value state linkage preprocessing system to form a closed-loop linkage.

It can realize dual-mode dynamic control of analog quantity and digital quantity.

Specification

Installation method：

Make the direction of the pitot tube dynamic pressure port face the air flow direction, and the static pressure port back the air flow direction.

Measuring Principle：

Temperature: Thermal resistance

Pressure: Varistor

Flow rate: Pitot tube differential pressure

Measuring Range：

Temperature: (0~300~400)℃ adjustable;

Pressure: (-2.5~+2.5) KPa adjustable;

Flow rate: (0~20~40) m/s adjustable;

Pressure difference: (0~1000~2000) Pa adjustable;

Performance：

Indication error: ±2%,

suitable for flow velocity > 2m/s

Response time: ≤10s

Power Supply：

Voltage 220VAC±10%, current ≥1A (this product comes with a power module)

Application：

Pipeline velocity of steam, liquid, air, gas and other media and the fluid to be measured must fill the entire pipe and flow continuously in one direction

Others：

Working temperature:(-20~50) ℃

Cabinet material：Carbon steel spray