Wing type air flow measuring device

Productoverview:

ZW-FJY series Wing type air flow measuring device With small pressure, short straight pipe installation, stable characteristics measurement. Suitable for circular or rectangular pipe with the measurement of air flow control technology, load, fuel and air distribution of power station boiler has realized the online detection and coordination control, but at present there are still many units because of pipeline or measuring device selection and configuration is not reasonable, and the ventilation quantity is not difficult to measure accurately, resulting in boiler load. Air and fuel quantity can not be put into automatic, cause unstable combustion, flue gas flow is not uniform, the boiler efficiency is decreased, and the coal mill ventilation shortage caused by blockage.

Two, work principle:

ZW-FJY series wing wind measuring device adopts a wing shaped throttle throttle type flow sensor. The structure principle diagram as follows:

Three, main features:

ZW-FJY series wing wind measuring device is used widely in a measuring device, and it has the following advantages compared with other measuring device:

1, with multi wing tube, increase the detection point, and improve the measurement accuracy; wing tube is increased, pipe length is shortened, so that the pipe length is shortened, thereby reducing the size and weight reduction.

2, in the detection of each wing tube is selected by area method, so that the measured flow rate is close to the true value, to ensure the accuracy of measurement.

3, the unique wing pressure cavity method, completely solve the blocking problem in pipe external added blowdown device and a dredging device, convenient operation and maintenance to ensure safety.

4, good long-term stability, wide application range, simple structure, easy, easy to eliminate fault.

5, the straight pipe section is low, straight pipe 0.6~1.0D, after 0.2D straight pipe.

6, has a unique airfoil, can produce large differential pressure, stable measurement with high precision.

7, the core throttling element is streamlined airfoil shape, the drag coefficient reached Zui limit. The pressure loss is smaller, the pressure loss generated does not exceed 14% of the value of differential pressure.

Four, technical parameters:

1, medium: air, one or two wind medium boiler;

2, pipe: pipe, rectangular pipe;

3, pipeline scope: Dn=200 ~ 5000mm B * H=200 * 4000mm * 200~4000;

4, accuracy: + 1%;

5, nominal pressure: Pn = 6.4MPa;

6, the fluid temperature is not higher than 500 DEG t;

7, accuracy: 1 Level 2

8, standard: GB/T2624-2006, GB1236-2000 and JJG835-93

9, connection: flange connection, welding

Five, structure:

Wing type anemography device structure

Top view front view

Seven, the selection of encoding:

Types of marking method:

ZW-HJM-DN - -PN - C/S/O - cross section of air flow sensor

ZW - - HJM - basic model; cross section air flow sensor

DN - - nominal diameter (mm) such as DN1000, nominal diameter 1000 mm.

PN - - nominal pressure (Mpa) such as PN0.1, for the nominal pressure of 0.1 Mpa.

C/S/O pipe material: C steel, S stainless steel, O and other materials.

Eight, design selection and ordering information:

1, the measured medium;

2, Z, Z, commonly used in small flow rate (m3/h);

3, working pressure (Mpa), temperature (c), Z (Mpa), Z high pressure high temperature (C);

4, medium density and viscosity;

5, pipe material, diameter, diameter;

6, field piping and local resistance piece.

7, you need to display instrument Zhongwei control, please refer to the corresponding instructions, the appropriate choice of models or provided by the technical personnel of our company according to your information for your selection.

8, if there are special to show, please contact our sales department.

Customer service service commitment:

1, our series of flowmeter series product quality problems occur in less than twelve months, is responsible for free repair.

2, the warranty period if the products of our company have any quality problems, our company is responsible for free repair or replacement.

3, the warranty period if the user use undeserved, cause damage to the product, our company is responsible for the maintenance, collect the damaged parts cost.

4, the warranty period after the product quality problems, our company is responsible for the maintenance, collect the damaged parts cost.

5, if the user needs to our service, our company in the province of the user service personnel arrived at the scene within 12 hours, arrived at the scene 48 hours outside users.