CN209459709U - Novel wet gas meter - Google Patents
Novel wet gas meter Download PDFInfo
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- CN209459709U CN209459709U CN201920235919.7U CN201920235919U CN209459709U CN 209459709 U CN209459709 U CN 209459709U CN 201920235919 U CN201920235919 U CN 201920235919U CN 209459709 U CN209459709 U CN 209459709U
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- flowmeter
- flow
- fluid
- air duct
- wet gas
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Abstract
Novel wet gas meter, including flowmeter A and flowmeter B, the flowmeter A are differential pressure flowmeter, and the flowmeter B is spiral vortex type flowmeter.Based on different measuring principles, by the ingenious combination of two different flowmeters, real-time density is released according to measuring principle is counter, then thus calculate the content of gas-liquid.The utility model can accurately measure the gas-liquid flow in fluid, and delicate structure is easy for installation, long service life.
Description
Technical field
The invention belongs to flowmeter technology fields, and in particular to a kind of delicate structure, the accurate moisture of metering easy for installation
Flowmeter.
Background technique
Balance flow meter is a kind of differential pressure type flow instrument, based on the energy conversion principle in sealing pipeline: in ideal
Flow in the case where fluid in pipeline is directly proportional to the square root of differential pressure;It can be counted with differential pressure value is measured according to Bernoulli equation
Calculate the flow in pipeline.
The principle of precession vortex formula flowmeter: after fluid is by the vortex generator that is made of spiral vane, fluid
It is forced acutely to rotate around generating body axis, forms vortex, when fluid enters diffuser, bumpy flow is opened by the effect to flow back
Beginning makees secondary rotating, forms the vortex precession phenomenon of gyroscope type.The precession frequency is directly proportional to uninterrupted, goes out to flow in prediction on such basis
Amount.The flowmeter is not influenced by temperature, pressure, component and the physical property (density, viscosity) with fluid, while built-in formula pressure
Power, temperature, flow sensor, security performance is high, compact-sized.
Wet gas meter is the measuring device for referring to measure gas and liquid two phases flow in real time, mostly uses multi-parameter or double ginsengs
Number measurement method is combined measurement using two or more sensors, generates the equation comprising two unknown numbers, solve this equation
Group obtains two phase flow, such as combines swirl flowmeter using spectacle plate, double-venturi tube.But the stream being measured in actual measurement
Body be it is extremely unstable, unstable cyclone is entrained in air-flow, in this way can to the vortex generator of swirl flowmeter generate punching
It hits, influences its service life, while it is unstable to generate its bumpy flow, influences measurement accuracy.
Summary of the invention
In order to overcome, the cyclone of detected fluid in traditional wet gas meter influences vortex generator service life and flow is surveyed
The problem of accuracy of measurement, the present invention provide novel wet gas meter, this kind of wet gas meter measuring accuracy is high, and simple installation uses
Service life is long.
The technical solution adopted by the present invention to solve the technical problems is: novel wet gas meter, including flowmeter A and stream
Meter B, the flowmeter A are differential pressure flowmeter, and the flowmeter B is spiral vortex type flowmeter.
Preferably, the differential pressure flowmeter is balance flow meter, and the spiral vortex type flow is calculated as precession vortex formula flow
Meter, is equipped with pressure sensor, temperature sensor in the precession vortex formula flowmeter, and when installation makes fluid first pass through balanced flow
Meter is using precession vortex formula flowmeter, and the measurement conduit of the balance flow meter is interior to be equipped with air duct, and the air duct end is equipped with
Flange circle, flange circle two sides are equipped with rubber seal, and the flange circle is set to the Method for Installation of balance flow meter measurement conduit
Between the blue and mounting flange of precession vortex formula flowmeter, several commutator segments are equipped in the air duct, the commutator segment is in streamline
Type.
The working principle of the invention: the flowmeter B by not containing fluid density in reduced parameter obtains the volume of fluid,
It then can be accurately counter to release real-time fluid according to other measurement parameters in the flowmeter A in reduced parameter containing fluid density
Density, since the density of liquids and gases contained in fluid is known fixed, then can further extrapolate liquid with
The flow of gas.
By taking preferably scheme as an example:
It is V that precession vortex formula flow measurement, which obtains fluid volume, then can be anti-according to the principle bernoulli formula of balance flow meter
The density p of fluid is released, then basis: ρ=ρg(1- φ)+ρwφ is counter to release liquid holdup φ, ρ in formulagIt is close for known liquid
Degree, ρwFor known gas density；
Further calculate gas mark condition flow: V gas=V(1- φ), P is real-time pressure in formula, and T is real-time
Temperature, T0 are mark condition temperature, and P0 is mark condition air pressure；
And fluid flow: V liquid=V φ.
Based on different measuring principles, the ingenious combination of two different flowmeters is instead released in real time according to measuring principle
Density, then thus calculate the content of gas-liquid.Selecting balance flow meter is that there are self-rectifying effects because of balance flow meter, together
When straight pipe require it is low, the volume of wet gas meter can be greatly reduced, the streamline vane when fluid flows through air duct, in air duct
Fluid is combed again, plays the role of secondary rectification, is further eliminated the cyclone in fluid, is played protection vortex generator
With the effect for improving measurement accuracy, increased rectification air duct is detachable structure, so not only without redesigning flowmeter
Conduit is measured, while also facilitating the maintenance in later period.
The beneficial effects of the present invention are: the gas-liquid flow in fluid can be measured accurately, delicate structure is easy for installation,
Long service life.
Detailed description of the invention
The invention will be further described with example with reference to the accompanying drawing.
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the structure sectional view for rectifying air duct.
1. balance flow meter in figure, 2. precession vortex formula flowmeters, 2.1. pressure sensor, 2.2 temperature sensors, 2.3
Flow sensor, 2.4 vortex generators, 3. air ducts, 4. flange circles, 5. commutator segments, 6. rubber seal.
Specific embodiment
A kind of novel wet gas meter in Fig. 1 and Fig. 2, wherein 1. balance flow meters, 2. precession vortex formula flowmeters, 2.1.
Pressure sensor, 2.2 temperature sensors, 2.3 flow sensors, 2.4 vortex generators, 3. air ducts, 4. flange circles, 5. rectifications
Piece, 6. rubber seal.Pressure sensor, temperature sensor are equipped in the precession vortex formula flowmeter, when installation makes fluid
Balance flow meter is first passed through using precession vortex formula flowmeter, the measurement conduit of the balance flow meter is interior to be equipped with air duct, institute
Air duct end is stated equipped with flange circle, flange circle two sides is equipped with rubber seal, and the flange circle is measured set on balanced flow
It measures between the mounting flange of conduit and the mounting flange of precession vortex formula flowmeter, several commutator segments, institute is equipped in the air duct
It is streamlined to state commutator segment.
Claims (1)
1. novel wet gas meter, it is characterized in that: being made of flowmeter A and flowmeter B assembly connection, the flowmeter A is poor
Pressure type flowmeter, the flowmeter B are spiral vortex type flowmeter, and the differential pressure flowmeter is balance flow meter, the spiral vortex type
Flow is calculated as precession vortex formula flowmeter, and pressure sensor, temperature sensor, installation are equipped in the precession vortex formula flowmeter
When so that fluid is first passed through balance flow meter using precession vortex formula flowmeter, be equipped in the measurement conduit of the balance flow meter
Air duct, the air duct end are equipped with flange circle, and flange circle two sides is equipped with rubber seal, and the flange circle is set to equiulbrium flow
Between the mounting flange of flowmeter measurement conduit and the mounting flange of precession vortex formula flowmeter, several rectifications are equipped in the air duct
Piece, the commutator segment are streamlined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920235919.7U CN209459709U (en) | 2019-02-25 | 2019-02-25 | Novel wet gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920235919.7U CN209459709U (en) | 2019-02-25 | 2019-02-25 | Novel wet gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209459709U true CN209459709U (en) | 2019-10-01 |
Family
ID=68046898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920235919.7U Active CN209459709U (en) | 2019-02-25 | 2019-02-25 | Novel wet gas meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209459709U (en) |
-
2019
- 2019-02-25 CN CN201920235919.7U patent/CN209459709U/en active Active
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