Orifice flowmeter

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Integration of orifice flowmeter is a kind of the annulus take pressure orifice throttling device, t…

Integration of orifice flowmeter is a kind of the annulus take pressure orifice throttling device, the measurement of flow of differential pressure generator.Cooperate with all sorts of differential pressure gauge or differential pressure transmitter to measure all kinds of fluid flow in pipes.Orifice flowmeter is widely used in petroleum, chemical, metallurgical, power, light industry and other departments.

A, principle of measurement of the orifice meter:

Fluid filled with pipes, when they flow through the pipe of the throttle device, a beam to local contraction at the throttling of the throttle device, so that the flow velocity increases, the static pressure is low, so the throttling parts before and after the pressure drop is produced, the pressure difference, the greater the flow of medium flow, in the front and rear of the throttling parts the greater the pressure difference, so the orifice meter can be measured by the size of the pressure difference to measure fluid flow.This kind of measurement method based on the energy conservation law and the law of flow continuity as a benchmark.

Integration of orifice flowmeter is integrating flow, temperature and pressure detection, temperature, pressure, and can automatically compensate a new generation of flowmeter, the ring chamber orifice plate adopts the new technology of advanced computer technology and micro power consumption, strong function, compact structure, simple operation, easy to use.
Second, ZY - LG orifice meter features:
1. The orifice flowmeter throttle device structure easy to copy, simple, firm, stable and reliable performance, long service life, low price.
2. Adopt international standard orifice calculation and processing
3. The orifice meter wide scope of application, all the single phase flow are measured, partially miscible flow can also be applied.
4. Standard throttle device without real flow calibration, putting-in-service proactively.
5. A body orifice meter installation is more simple, do not need to bring pressure pipe, can be directly answering the differential pressure transmitter and pressure transmitter.
Third, take pressure orifice meter:

1, annulus pressure standard orifice:
The standard orifice plate.Due to implement the annulus pressure, improves the measuring accuracy, shortens the installation time required minimum straight section length and can be widely used in each department.
2, Angle joint single borehole pressure standard orifice:
The standard orifice plate.When more than 400 mm in diameter, with this form.Take pressure method for flange single borehole pressure, circular equalizing ring or square take pressure equalizing ring.Orifice form can provide with handle holes or non-standard segmental orifice plate, etc.
3, flange pressure standard orifice:
The standard orifice plate.Upstream or downstream regardless of pipe diameter size, its take pressure hole center, located on both sides of the orifice plate face one (25.5 mm), each of the various refining system widely used this form.
4, diameter pressure standard orifice:
The standard orifice plate.Take pressure method for pipeline pressure.Take pressure upstream hole center is located in the front of the orifice pipe diameter.Take pressure hole center is located in the downstream distance orifice and a half after the end of pipe diameter.
5, small-bore orifice:
The standard orifice plate.Used to measure fluid within 10 mm to 50 mm diameter measurement.
6, double orifice:
Is the distance from each other in a certain installed on the straight pipe of the two pieces of standard orifice plate.According to the flow direction of the beam, the hole in front of the said is complementary orifice plate, the back of the orifice said orifice.Auxiliary orifice cross-section than m1 is greater than the main section of orifice than m.Two pieces of orifice plate makes the walls of a similar liquid nozzle.It is used for low Reynolds number or high viscosity fluid flow measurement.
7, segmental orifice:
Belong to non standard orifice, be applicable to the dirt, or have a bubble analysis, or contains solid particles in the measurement of fluid flow and its measurement precision is low.
8, conical inlet orifice:

The standard orifice plate.Circular cone with the center line of the Angle is 45 °, the conical inlet orifice can suitable for occasions with low Reynolds number, but shall not be less than 25 mm pipe size.

Four, throttling a straight pipe upstream and downstream side of the requested the shortest length: