SI22314A - Device for measurement of flow rate or speed of fluids or gasses withseveral windows - Google Patents

Abstract

The novelty of this invention is the installation of additional observation windows into a flow rate meter of type "Float Type Flowmeter". The device according to the invention can be executed as a "Float Type Flowmeter" from optional, measurand- and environment-friendly materials without contacts of control elements with the observed substance, yet contrary to other flow rate meters, also quite different flow rate ranges can be measured as well as valve tightness controlled. The submitted invention enables a long-term undisturbed direct measurement of flow rate, and indirectly, also of speed or power of quite different magnitudes. Te device according to the invention can be executed from optional, measurand- and environment-friendly materials and, if needed, without contacts of control elements with the observed substance.

Description

The subject of the invention is a device for measuring the flow or velocity of liquids or gases with multiple windows and with possible complete control of flow blocking, which does not require special properties of the meter (eg suspension, conductivity, etc.) and reliably long-lasting independent of external disturbances, electromagnetic (conductivity , permeability, etc.), optical, mechanical (viscosity, compressibility, homogeneity, etc.), and chemical (aggressiveness, adhesiveness, etc.) properties of the fluids without excitation of disturbing (eg, audible, thermal, or electromagnetic) waves. The invention can be classified in classes G 01 F 1/704, G 01 F 1/708 and G 01 F 1/80 of the international patent classification.

The technical problem that the proposed construction successfully solves is the weakness of the known flowmeters, which is primarily a small observation window.

Cost-effective devices account for only a few percent of maximum measurable flow, technologically sound devices become less than one percent unreliable, and best around one ppm.

In order to measure even very low flow rates or complete control of the valve closures, we need an additional technologically very demanding or space and cost-unfavorable apparatus or a tear-proof body according to the invention.

The present invention allows for a long-term smooth direct measurement of flows, indirectly also of speed or power of completely different sizes. The device for measuring the flow or velocity of liquids or gases with multiple windows according to the invention can be made of any materials, measurements and environmentally friendly materials, without touching the control elements with the observed substance, if necessary.

Some known embodiments of flow measurement devices are described in DE 3 933 472, EP 432 627, US 5,036,712.

All patented solutions use a method different from the inventive devices. Features of recent published patents such as is. US 5,689,071, US 5,654,512, US 5,638867, US 5,594,181, US 5,641,914, US 5,625,155, US 5,594,181, US 5,540,107 indicate that the development is mostly in the opposite direction, because modern technology enables better observations through the effects of speed on ultrasonic or electromagnetic waves. .

Known devices on

- rotation (with lever) act only as a flow indicator

- Transverse drift is sold with Variable Area Rotameter, Purge Rotameter, In-Line Flowmeter, Float Type Flowmeter etc. ...

The simplest solution to such flowmeters is a cone ball. The required observation accuracy requires an appropriately long cone of up to 1.5 m.

At the exit end, there is an excessive ratio of cone radius and instability ball. Therefore, they make flowmeters per sphere only for flow rates up to about 35 ml / s of water, or a corresponding amount of other fluids, depending on the specific mass and viscosity. Without additional guards, the ball closes when the flow is too high, blocking the flow and, depending on the system, can even cause an explosion.

When the flow disappears completely, the ball returns to the input limit of the observation area. This wave can be prevented by a step, which improves the reliability of the deviation, reduces the size of the observation interval, but reliable measurement is achieved in each case only above 10% and with the maximum flow.

Depending on the precision of the production and the properties of the materials, the reproducibility of the observational results reaches from 1/4% to 1% of the maximum flow, but the nonlinearity of the observational parameters causes an error of 5% to 10% of the maximum flow with a technologically favorable linear scale.

2o Unlike other flowmeters, moderate viscosity does not significantly affect the congestion pressure, since it generally only compensates for the mass of the observation sphere.

The major Float Type Flowmeter has at least partially eliminated the main disadvantages:

- bypass - lateral exit before the end of the blade body, or at least adequate asymmetry of the exit restrictions, prevents the ball from blocking the flow in case of excessive flow;

- a long observation ladder is required for accurate measurement. A flexible pen at the exit just like a bypass prevents the blockage, and executed over the observation rock allows a shorter observation path than just the difference of specific masses;

- an elongated cylinder instead of a ball increases the upper limit of stability by almost a factor of 3, e.g. to measure water flow rates of up to about 100 ml / s or, depending on the specific mass and viscosity, the corresponding amount of other fluids, but in this case the viscosity has a noticeable effect on the congestion pressure and even the calibration. Other features remain similar to the flow meter per sphere;

- With the central cylinder guide the stability can be significantly increased and the shape of the cylinders can be further optimized e.g.

- for an increased upper limit by more than a factor of 30, which allows the measurement of water flow rates up to about 3,5 l / s or, corresponding to the specific mass and viscosity, of the corresponding amount of other fluids;

- for accuracy up to 2 percent of maximum flow;

- for a relatively small lower limit up to 5 percent of maximum flow;

- for again negligible viscosity dependence, etc.

The invention will be explained on the basis of embodiments and accompanying drawings, of which:

FIG. 1 is a device for measuring the flow or velocity of a liquid or a multi-window gas according to the invention with a flat entrance step, flexible pen and central exit; 2 is a device for measuring the flow or velocity of a multi-window fluid or gas according to the invention with a tapered inlet step and a side exit; 3 is an example of a central axis pivot body for fast response FIG. 4 is an example of a hollow burst body for quick response FIG. 5 is a device for measuring the flow or velocity of a multi-window fluid or gas according to the invention with a tapered inlet step, a central guide, a tear-off body on the central axis for rapid response and a lateral exit. 6 is an optimum embodiment of a hollow strip for measuring forces in an aggressive environment; 7 optimum performance of a piezoelectric meter in an aggressive environment

A legend to the pictures

A tear-off body required for all areas except in the case of pressure difference measurements

B flexible pen for enlarged observation window when moving the body 5 or flexible pens for different observation windows when moving the body

C pipeline

D inlet chamber to prevent interference with the passage of the observed fluid from the pipeline to the observation chamber

E observation chamber

F Smooth inlet step required for very low flow or leakage monitoring

G is the central axis of the blade body

H short cylinder or cone with full barrier across the entire cross section, and adapted to the inlet step when restricting the discharge body to the inlet

I for the observed fluid possibly a permeable cylinder to direct the blade body

J hollow roller for directing the blade body, adjusted towards the entrance to the entrance step

K central guide

L a short cylinder or cone adapted to the entry step

M leading hollow axis

N extended observation chamber to the exit chamber

O possibly a piezoelectric lining for a smooth entry stair

P suitably shaped and polished face plate for adjustment to a smooth entry step with the necessary soft lining

R tip for point loading of flexible band

With local reinforcement of the flexible band for proper loading of the meters

T flexible strap for proper load on the gauges

Into a symbolic system of membranes

Into the piezoelement sensor system

W rigid bridging of the measuring cavity X adapter for limiting the displacement of the flexible band Y rigid armor to protect the measuring device against the effects of environmental deformation Z Extra tip for proper loading of the gauges

The device for measuring the flow or velocity of a multi-window liquid or gas according to the invention acts in the central observation window as a Float Type Flowmeter: - The peripheral layer of the blade body A, with necessarily rounded outer edges, is optimized for almost frictionless movements to prevent jams. For the sake of simplicity and plausibility, these and analogue, generally favorable, rounds are not shown in the figures;

- The impactor, with its specific mass and shape, influences, as in Float Type Flowmeter, the sensitivity, linearity, reliability of measurements and the risk of jolting;

- a massive discharge body and / or flexible pen B is required to measure relatively high flow rates in the central observation window, which, as in the Float Type Flowmeter, allows a shorter observation path, increases the congestion pressure and slows down the response; just like in the Float Type Flowmeter, the flexible pen has a greater influence on the observation path and congestion pressure and less on the response velocity than the difference of the specific masses of the body against the observed fluid,

- the opposite flow will be blocked as in Float Type Flowmeter;

but, unlike a regular Float Type Flowmeter, it has at least two observation windows:

is - in order to measure very low flow or leakage of the valves, we also observe the infinitesimal deviations of the tear-off body from the entrance step;

- in contrast to the conventional Float Type Flowmeter, the opposite flow in the flow meter according to the invention will be blocked without the risk of being stuck;

- To measure different flow rates in the range of ordinary Float Type Flowmeters, introduce one or more flexible pens of different lengths and possibly different coercive force; it is measured as in a regular Float Type Flowmeter, but the basic observation window is divided into two or more areas with also significantly different sensitivity;

- for observations of flows beyond the areas of ordinary Float

Type Flowmeters additionally introduce the most advantageous known method for measuring with the nominal constant position of the blade;

- often, e.g. for the refrigeration unit, we are only interested in sufficient flow or complete shutdown. In this case, the observations in the central observation window and the characteristic cone of the observation cavity in the ordinary Float Type Flowmeter can be omitted, and only the marginal windows are activated, which is a significantly cheap manufacture;

is stereometrically similar to a conventional Float Type Flowmeter, but to measure very low flow or leakage of the valves, we extend the pipeline C or the inlet D into the observation chamber E with an explicit step F. The entry stage is technologically easiest perpendicular (Fig. 1) to the axis of the blade body. or observation chambers, for the flow as in most cases and for the multi-point control of the valves, more favorable coaxially than the cone (Figs. 2, 5) about the axis.

As in the ordinary Float Type, the flowmeter occupies a radius of the observation chamber of a normal size between 1/10 and 1/100 of the length of the observation chamber and attains a relative variation between 1/10 and 1/100 in the cone along the observation chamber. For the sake of clarity, different relationships are drawn.

The tear-off body can have any shape that can be used in a regular Float Type Flowmeter. So we use e.g.

- for the simplest implementation of the ball (Fig. 2);

- for the most robust design a homogeneous cylinder (Fig. 1); s - for optimum fast response e.g.

- two short cylinders coaxially connected to the rigid axis G (Fig. 3); at least one cylinder H must be impermeable to the fluid observed, and the second I is required only for the proper orientation of the discharge body;

- a hollow cylinder J (Fig. 4) with at least one complete locking H across the entire surface.

io As the risk of jolting increases with the flatness of the blade body and the long blade body appropriately lengthens the observation chamber and impairs the dynamism of measurements, the simple blade body should be roughly an equilateral cylinder with rounded edges, as in a regular Float Type Flowmeter, and a complicated blade body with a similar size.

is As in the ordinary Float Type Flowmeter, the central guide K (Fig. 5) is far more useful than adjusting the gauge to the cone of the observation chamber. In this case, we can adjust any shape of the tear-off body, suitable for execution without a central guide, and for an optimum quick response, only one short cylinder or cone L is sufficient to measure very small currents or leaks of valves adapted to the inlet F, with a long hollow axis M, tightly attached to a central guide with a tolerance that permits a sufficiently precise and rapid adjustment of the position to the current flow.

The observation chamber without the central bus is most easily carried out with the central inlet and outlet (Fig. 1). The side input impairs the quality of the meter, but the side output does not (Fig. 2).

The center-mounted observation chamber is equipped with a side 5 inlet and outlet. In order not to disturb the entrance and the exit, extend the observation chamber into the exit chamber N and add a narrower entrance chamber D by the entry step (Fig. 5).

When the force of the possibly-fitted flexible pen does not completely outweigh the effective weight of the tear-off body (depending on the difference of io specific masses), the axis of the observation chamber should remain at least approximately vertical for the use of ordinary Float Type Flowmeters.

When controlling valves or measuring very small flow rates, in addition to nominal flow measurements, we often want to detect very low flow rates or complete shut-off of valves, which, unlike in commercial flowmeters, only the flowmeters according to the invention can. The complete barrier is most easily detected in a transparent housing directly by looking at the boundary surface between the entrance step and the tear-off body, otherwise by electrical contact or capacitance, which is construction trivial but often for many reasons not useful (especially galvanic contact) or quite accurate ( notably capacity).

In a transparent housing, the optical method is the most meaningful in terms of construction, with optical fiber technology it can also be used for translucent material or just a thin transparent inner liner, but is limited to a perfectly clean entry step and tear-off body and good mutual adjustment.

Although many non-adhesive and stable materials are available, often the optical method is not reliable. Therefore, the ultrasonic method of resonance (mainly of the reflecting body) or transitions of (mainly millimeter) waves is generally the most favorable.

An acoustic wave with a flat wavefront and a transverse constant intensity penetrates a rigidly homogeneous substance transversely or longitudinally with different impedance and velocity and responds differently to the observed gap accordingly.

Any wavefront curvature, transversal intensity unevenness, spatial and material inhomogeneity causes transitions between wave types. We adjust the whole stereometry so that only one type of wave will prevail at least before passing between the entry step and the detachment body.

In order to measure very low flow or leakage of valves, it is necessary to compare the input and output optical or acoustic beams in order to analogously observe the reflectance, transmittance, tunneling effect and / or interference, and from these data, taking into account the parameters of the observed

2o the fluids and materials of the flowmeter are automatically calculated by the distance of the orifice body from the housing, and consequently also the flow. In the case of an oblique beam incident, polarization must also be taken into account. We optimally assume a beam with only one sharply defined component with respect to the transition, since each polarization gives a different result.

When a blank window is left between the incomplete lock warning and the measurement interval, instead of complicated analog measurements and permeability calibration programs, we only need to indicate whether the chosen measurement method marks a crack between the blade body and the entrance step.

In the case of optical and longitudinal acoustic waves, the reflected beam completely disappears upon perfect contact between the adapted peripheral layer of the entrance step and the reflecting body. This is why we primarily observe the reflected beam and use the left beam to control the power.

In the case of transverse acoustic waves, the reflection of the rays does not completely disappear even when fully contacted between the adapted peripheral layer of the entrance step and the reflecting body. Therefore, through the staircase, we excite an excretory body and observe the vibration at the selected position, where the beam returns to the chamber longitudinally through the wall or for automatic two-digit measurement transversely through the entry stage.

For the sake of complete reliability, we generally determine at least two sites whether the observation method crack has effectively disappeared everywhere. To reduce the manufacturing precision required and the susceptibility to deformation, we cover the stairs with a soft, e.g. silicone lining O. Such lining also acts as an optical or acoustic waveguide, which simplifies and improves the quality of especially ultrasonic measurements, since we no longer need to observe transitions through the tear-off body but only attenuation in the waveguide.

For acoustic measurement, piezoelectric lining can be made instead of explicit transmitters and receivers, e.g. polyvinylidenefluoride, which is otherwise advantageous both mechanically and chemically for many fluids.

Thus, conventional acoustic filter or modulation technology can be applied to peripheral acoustic waves, but a continuous piezoelectric or ballast layer must completely cover each electrode. Without explicit linings, manufacturing will be very complicated, since the electrodes installed on the step cause very damaging discontinuity of contact with the tear-off body.

Of course, in any case, a vis-a-vis is required for a properly shaped and polished surface, and, if necessary, a peripheral layer P with adapted optical or acoustic impedance.

is When there is no flow, the massive discharge body closes the passage to the observation chamber with a discharge pressure of about 1 mbar. With a large weight of the tear-off body, it can be raised to about 1 bar, with a flexible pen up to about 1 kbar, or even controlled by an additional mechanism. By means of a special embodiment, especially hollow or adjusting the specific masses, it is possible to reduce the tear-off pressure below 1 pbar or to obtain a formal negative value of about 1 mbar for the droplet, which is advantageous for the measurement of downflows.

When the flow drops below the value enabled by the eventual permeability of the ducts due to peripheral damage or discontinuities, with a burst pressure below 1 mbar, the distance between the burst body and the step at the inlet of the observed fluid into the observation chamber disappears with disturbing delay, and the control of the complete stop becomes dependent on the various disorders, e.g. vibrations from the environment, increasingly unreliable.

With a burst pressure above 1 mbar, the effect on the congestion pressure becomes more and more disturbing. Therefore, adjusting the bursting pressures from around (formally +/-) 1 mbar is mostly pointless, often even annoying.

With explicitly controlled burst pressure, the device also acts as a valve. Considering all the parameters, we assume the most appropriate io variant of the known valve mechanisms with the additional requirement that they do not damage the observation system. An extremely robust piezosensor can handle mechanical loading, allowing automatic control of the shut-off pressure, but is normally mechanically bridged for safety reasons.

is The flow can be observed directly as in a regular Float Type Flowmeter, but it is at least inductive or capacitive to transmit information, which does not even require the meter to contact a conductor or even a magnet.

For the capacitive method, it is generally sufficient to contact the detachable body with the peripherally insulated and at least one-sided re-insulated conductive film at the contact between the detachment body and the observation chamber, and at least one-sidedly replace it with the more remote coil for the inductive method. The use of magnets and high magnetic permeability allows for simplification, but is often not recommended due to interactions with the environment. The displacement of the tear-off body changes the interaction, which is observed by the ordinary bridge or resonance method.

We need a calibration curve for accurate measurement and AD (analog / digital) or FD (frequency / digital) converter and a calibration program for connection to 5 computers.

Transparent housing is the best optical method, with optical fiber technology it can also be used for translucent material or just a thin transparent inner liner. Due to the inevitable distance between the sensor installation in the housing and the blade body, direct measurement achieves only the same accuracy as can be obtained by a capacitive or inductive method, namely:

- analogous to processing basic data from large sensor elements, e.g. with simple shading and beam comparison is digital in a linear sequence of as small as possible diodes or CCD elements, which is more convenient for computer compatibility.

Precision and reliability can be increased by different methods and rates, for example:

1) by combining both methods, taking into account the analog signal on the 20 individual sensor elements,

2) fiber is used to transmit rays,

3) determine the shading of a properly collimated beam,

4) after deflecting from the locally treated blasting body, the source is mapped into the sensor group

5) Using the optics, the imaging body is mapped into the sensor group, which is more accurate than the impractical body can be directly or by fiber optically imaging the imaging body.

Our own design for the sensor group can be replaced with a special linear or even ordinary CCD camera.

In the case of sensor groups, we significantly increase the economy with two-stage even multi-stage observation method, e.g. mark the orifice body like io with a rock as the housing on the Float Type Flowmeter. Thus, we need inappropriately lower relative precision: for coarse measurement, we only need resolution up to interval size, and we restrict fine measurement to interval lengths. When the rotation of the blade body is prevented by asymmetry, which should be as minimal and generally as disturbing as possible, the blade and body can be labeled transversely different for multi-stage wave displacement measurement, thus using the same one-dimensional arrangement or the same CCD camera or two-dimensional arrangement for coarse and fine measurements .

The circumferential blade body automatically satisfies this condition.

When optical technology is not applicable, we replace it with more expensive analog,

2o more cumbersome and less precise ultrasound technology.

When the flow exceeds the range of ordinary Float Type Flowmeters, it pushes the blade body to the end position with such a high force or pressure difference that it can also be economically interesting to measure more precisely than the accuracy of ordinary flowmeters.

When the output is for the end position of the blade body as in FIG. 1 and 2, with good construction, the theoretically linear regions of the observation intervals of displacements and forces are almost in contact, and the linear areas of the observational intervals of displacements and pressures are almost overlapping, practically in each case without unobserved intervals and with almost no nonlinear intervals.

Instabilities that limit the areas of ordinary Float Type Flowmeters only interfere with the inappropriately higher flow rate, but above the flow limit and of ordinary Float Type Flowmeters, the congestive pressure difference rapidly increases, thereby limiting the maximum throughput.

When the exit is before the end position of the blade body as in FIG. 5, at the passage of the burst body past the exit, the observational sensitivity of the deviations drops significantly, and the delayed pressure difference begins to increase linearly only after and after the passage. Theoretically, the non-linear areas of the observation intervals of displacements and forces are barely in contact, the non-linear areas of the observation intervals of displacements and pressures partially overlap, but practically in each case a disturbingly non-linear, nonlinear, poorly observed interval occurs in the case of force measurements.

Above the flowrate of ordinary Float Type Flowmeters, a congestive pressure difference suitable for measurement and instability increases, which limits the areas of ordinary Float Type Flowmeters to occur only at an appreciably higher flow rate than when, as in Figs. 1 and 2 the main flow always engulfs the discharge body.

Measurement on the piezosensor is, in response to the speed of responses and often also reliability superior to the measurement of displacements, when the sensitivity of the piezosystem is sufficient, which can be increased even substantially above the sensitivity of observing displacements with appropriate investment, but in this case thermal stabilization is required, e.g. for 3-5 compounds or even low temperature, e.g. for the Josephson effect, which only makes sense for demanding research and not for industrial use.

io Depending on the mechanical inertia of the system, the body-fluid reacts the delay with delay to any change in flow, and the piezosensor immediately detects the change, as opposed to observing the offset, since the signal arrives at an acoustic rather than mass velocity. In any case, the measured integral over the flow rate remains little equal to the flow volume, depending on the time course and the momentary distortion of the signals.

When a Float Type Flowmeter (also economically interesting) force sensor or pressure difference is added, the insertion of a massive tear-off body or even flexible feathers makes it economically viable not only for the required very fast and reliable valve control, but also for the possibility of installing flowmeters in any position, but also in the case of these additional requirements, we want a compromise with as little pressure difference as possible between the inlet and the outlet of the flowmeter. The congestion pressure can be measured independently of the position, and the force on the discharge body can only be measured in the end position.

Therefore, we generally integrate a rather sensitive piezosensor system into the structure with as little pressure difference as possible.

As we approach the aforementioned optimum, we observe a small observation amount, and the influence of parametric disturbances maintains its magnitude.

The piezosensor measures formally:

- in an ordinary load-bearing force gauge;

- in the ordinary manometer, the pressure difference through the flowmeter;

- effectively a general combination of the two mentioned parameters, pipeline pressure and local dynamic effects when the structure is not optimally adjusted.

Local dynamic disturbance increases quadratically with local velocity. Since the radius for the observation chamber is considerably larger than the radius of the pipeline, the disturbance can be easily reduced to the size mentioned with a properly sized inlet and outlet chamber.

The pressure in the pipeline will deform the rigidly mounted sensor device via the housing and thus, depending on the design, further affect the sensor functionality. Many gauges and force gauges are built so that this influence remains negligible, but there are no identical pairs of gauges and except for the most accurate systems, e.g. for the analytical balance, there are no force meters with automatically compensated pressure effects.

The most commonly used method for the pressure gauge is the industrially most common method of insulated VVheatston bridges made of piezoresistive elements on a semi-rigid metal membrane (for precise mathematical treatment of a flexible surface).

With tape we achieve better linearity, size of the observation window, repeatability and precision than with a membrane. Optimal technology therefore uses the diaphragm only as an antenna to transmit the pressure differential to the force and / or to protect against the aggression of the observed fluids

The required small mechanical impedance of the membrane system U is achieved by a waveguide membrane based on industrial manometers or by a corrugated cylinder modeled on meteorological manometers. , mechanical properties, size of the absolute and linear area of the observation window.

When fitting a sensor element system into a hollow T band, e.g.

rectangular profile, optimally composed of hermetically coupled oblique profiles with pre-assembly of sensor elements V (Fig. 6), explicit protection of the piezoelements against the aggressiveness of the observed fluids becomes unnecessary, often limiting the time utility of the piezo systems due to the aggressiveness of the surroundings and / or the direct influence of the protective elements per measurement also precision. Each, even the slightest asymmetry, especially in the case of a hollow strip, causes the system to detect any change in hydrostatic pressure even as a change in force.

The optimal bending body is single crystalline, which is technologically difficult. Recently, ceramics have become increasingly popular for many reasons, and for technological reasons the hollow strip is often still metal.

Explicit offset compensation due to inappropriate observation principles or faulty technology causes additional expense and / or additional error. Therefore, in order to properly load the gauges, observing the pressure difference, a direct differential manometer measurement without parametric influences from the environment or observing the forces on the tear body, the tip R and the local reinforcement S of the flexible band T or membranes are required.

Mechanical overloading of piezoelements is prevented by a known known method for limiting offsets, e.g. we place a rigid bridging W over the space between the attachment X for is the distance restriction.

An optimum measuring device mounted over relatively soft rings in a rather rigid housing Y, such as e.g. in FIG. 7, can also be used as a pressure gauge when connecting the space below / above the measuring device to the outlet / inlet chamber or vice versa and securing it against any direct impact of the burst body, or the force meter when connecting both sides to the exit chamber and allowing the burst body, to push in the end position without any other restriction to the additional tip Z.

Economically advantageous known devices only detect a few percent of maximum measurable flow, technologically sound ones are unreliable under one percent of maximum measurable flow, and best around one ppm.

For the measurement of very low flow rates or complete control of the valve closures, we need a technologically very demanding or space- and cost-effective appliance or tear-off body according to the invention.

The novelty of this invention is the installation of additional observation windows in a Float Type Flowmeter flowmeter. The device according to the invention can be as

Float Type Flovvmeter is made of arbitrary, measured and environmentally friendly materials without touching the control elements with the observed substance, but unlike other flowmeters, we can also measure completely different areas and control the tightness of the valves.

The present invention allows for long-term direct, direct measurement of flows, indirectly as well as speed or power of completely different sizes. The device according to the invention can be made of any materials, measurements and environmentally friendly materials, without touching the control elements with the observed substance, if necessary.

Claims (12)

PATENT APPLICATIONS 1. A device for measuring the flow or velocity of liquids or gases with multiple windows, characterized in that: 5 that it contains at least two different observation windows. Device for measuring the flow or velocity of multiple windows or gases according to claim 1, characterized in that at least one flexible pen (B) is added to the adapted Float Type Flowmeter (B), which does not extend over the entire observation path of the tear-off body (A). 3. A device for measuring the flow or velocity of liquids or gases with multiple windows according to claims 1 and 2, 15, characterized by the addition of a custom Float Type Flovvmeter to several differently flexible pens (B) for the respective observation windows. A device for measuring the flow or velocity of a liquid or gas with multiple windows according to 20 claims 1 and 2 or 3, characterized in that the position of the detector body (A) is observed quasi-static (mainly inductive or capacitive) or wave (especially optical or acoustic) ). 5. A device for measuring the flow or velocity of a liquid or a multi-window gas according to claim 1, characterized in that 5 to add to the custom Float Type Flowmeter an input step (F) to determine the offset of the tee body (A) from it. 6. A device for measuring the flow or velocity of liquids or gases with multiple windows according to claims 1 and 5, characterized in that the displacement of the orifice body (A) from the entrance step (F) is observed quasi-static (mainly inductive or capacitive) or wave ( especially optical or acoustic). is 7. A device for measuring the flow or velocity of liquids or gases with multiple windows according to claim 1, characterized in that the final position is determined directly, quasi-static (mainly inductive or capacitive) or wave (especially optical or acoustic) 20 tear-off body (A). 8. A device for measuring the flow or velocity of a multi-window liquid or gas according to claim 1, characterized in that an adapted Float Type Flowmeter is added to measure the force on the tear-off body (A) in the end position. 5 9. A device for measuring the flow or velocity of liquids or gases with multiple windows according to claim 1, characterized in that a pressure gauge is added to the adapted Float Type Flowmeter to measure the pressure difference between the inlet and the outlet of the device according to the invention. A device for measuring the flow or velocity of liquids or gases with multiple windows according to claims 1 and 4, 6, 7, 8 or 9, characterized in that the basic measurement is automatically automatically converted to a communication and / or computer-compatible format. 11. A device for measuring the flow or velocity of a liquid or multi-window gas according to claims 1, 5 and 7, 8 or 9, characterized in that 20 to omit the measurement in the regular Float Type measurement window Flovvmetrov. 12. A device for measuring the flow or velocity of multi-window liquids or gases according to claim 1, characterized in that a locking mechanism 5 is added to the adapted Float Type Flowmeter, which, depending on the thrust setting with a suitable force, is a tear-off body at the entrance step (F) or it does not interfere with, or at least prevent, movement over the entire track of the blade body (A).