MXPA95000720A - Flow conditioner for more precise flu measurement - Google Patents

Flow conditioner for more precise flu measurement

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Publication number
MXPA95000720A
MXPA95000720A MXPA/A/1995/000720A MX9500720A MXPA95000720A MX PA95000720 A MXPA95000720 A MX PA95000720A MX 9500720 A MX9500720 A MX 9500720A MX PA95000720 A MXPA95000720 A MX PA95000720A
Authority
MX
Mexico
Prior art keywords
holes
turbulence
flow
formation
profile
Prior art date
Application number
MXPA/A/1995/000720A
Other languages
Spanish (es)
Other versions
MX9500720A (en
Inventor
e gallagher James
E Beaty Ronald
J Lanasa Paul
Original Assignee
Integrity Measurement Partners
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/189,100 external-priority patent/US5495872A/en
Application filed by Integrity Measurement Partners filed Critical Integrity Measurement Partners
Publication of MX9500720A publication Critical patent/MX9500720A/en
Publication of MXPA95000720A publication Critical patent/MXPA95000720A/en

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Abstract

The present invention relates to a flow conditioner for use in a tubular conduit, of internal diameter D, to allow more accurate measurement of the fluid flow rate in said tube, the flow conditioner comprising: (a) a device against turbulence to be placed in a tube upstream of a measuring device to be placed in a tube upstream of a measuring device to reduce turbulence to less than 2§; (b) a profile device to be placed in upstream tube at a distance greater than about 0.5 D from the measuring device: (c) an adjustment chamber between the turbulence and profile devices, the adjustment chamber comprising an elongated and unrestricted passage for fluid flow of sufficient length to decouple the flow patterns generated by the profile plate from the effects of the device against turbulence when the fluid flows in a pipe from the dispo against turbulence to the perf device

Description

FLOW CONDITIONER FOR MORE ACCURATE MEASUREMENT OF A FLUID OF FLUID BACKGROUND OF THE INVENTION 1.- FIELD OF THE INVENTION The invention relates to an improved flow conditioner used in tubular c-tubes that carry fluid of a fat-e fluid. ln μarLicuJar, the invention reduces to the minimum Jo-pic errors by producing a velocity-velocity model: «« to to to Le Le Le Le Le Le Le Le Le Le Le Le Le Le Le Le Le Le Le Le Le Le Le Le Le Le Le Le Le Le Le > developed and eliminate their ancialmen and the turbulence of the fluids that flow in a r-on ucta. 2. - DESCRIPTION OF THE RELATED TECHNIQUE The Lndiisrri? It is a natural gas producer who produces, transports and distributes "approximately seven hundred" tons of cubic meters of gas each year. The market of .l E-uropa ü cideni < J l r-m'-carries and distributes two hundred CLD, one hundred million cubic meters of ga < - every year.
Due to the importance of the measurement of the qas for industrial operations and for fiscal accounting, it is essential that the measurement ".t > Precise, with iable- and cost-efficient, through a range of conditions.
All this (jan is measured by the monkeys one time) and the largest pair of the same, var in times in meter sizes ranging from 25 to 1000 mm, at pressures from less than the pressure at osf- rxc, fia-- the -1 '1 Mf'-x at temperatures ranging from O ., up to 10 ° C, with various meters of meters. The measuring stations, of high volume, use gauges with a conical orifice, a square edge, a flange derivative, or an oi-tone flower of the moon. For more ele- t. In years, the orifice dv meter, concentric, has become the predictive selection meter for measuring applications in natural gas production and gas flow measurements at high volume, as well as like ap 1 i cari one < r > of measurement of chemical substances. In fact, it is currently estimated that more than J5 be * - > CJ ents thousand oral measurement meters for fiscal measurement applications, associated with petroleum, the chemical and gas industries, in the United States. All flow meters are subject to the effects of the velocity profile, turbulence and turbulence structure of the flowing fluid, which is being measured. l s -metering coefficients, or the valid non-valid empirical load coefficients, if only the geometric / dynamic distance between the conditions of metering and calibration, or between the - ,. conditions of the measurement and empirical data base, (e < »say, if dr1 flow conditions are fully developed). In the mechanics of the -fluids, this is commonly referred to as the "Law of Si i iapdad". The cyan definition for the turbulent flow =, totally dc? - »nrr ot lada is given by Hin.c dt-1 the following way to -" For the turbulent flow fully developed in the pipeline, the conditions of flow Medium are indecent laughs coordenackt a,;? al xy [, - a ::? ally symmetrical, assuming a wall condition a form. "From a practical point of view, the fully developed flow implies the e¡: i - teru of a profile of free speed of turbuJ gum , of average speed in time I am:? Ally symmetrical, according to the prediction of the Law of Power or the I and of the Wall. However, the turbulent flow completely developed requires balance of the forces to maintain the "cyclical" random movements of the turbulent flow. This, in turn, requires that the velocity profile, the intensity of the turbulence, the stress of the turbulent stream, the efforts of Reynolds, etc., < - > e'an constant with respect to the position a;:? al. Unfortunately, the flow of completely depleted 2b tubing is only to the tiring, after considerable effort in a research laboratory. To cover the bridle, enter and nvesl? U < - '. T ion yls industrial applications, reference is made to the term "pseudo-fully developed flow", defined as: "_?" An axially symmetric flow, free of tur I «u I in aa, with an average veiocadad profile in time and a structure of turbulence that have values that are close to those found in the totally unrolled and independent flow of L the coo on: "aal." Said in another way, the flow pseudatio to this entity developed ex j "_ t te when the slope of l <-« .deva ation of the discharge coefficient of the meter The orifice is approximated by the axial distance from the orifice meter to the current flow conditioner, which, of course, assumes that the base line of the Empirical discharge was brought to the tail under full flow conditions in the industrial environment. In the industrial environment, multiple pipeline configurations are assembled in series, which generates complex problems for organizations that write standards and for the flow measurement engineers The challenge is to reduce the minimum distance between , 2b flow conditions "p" in a pipe and vertical "fully developed" flow conditions, or at t? -. < .blf • - by the investigation, on the performance of a selected measuring device, to minimize the e-rrnr. One of the common methods and reduction policy Z? to the minimum of the error is to install a flow conditioner in co «macaon with straight tubes, located upstream, to" isolate "the meter with respect to the alterations of the pipeline co rien above. Current standards for domestic and international measurement are applied to straight pipe sections located upstream, and to flow conditioners arranged in the direction of the water meters, see, for example, American National .standard Institute (ANSÍ) (ANSI 253-)) and International Hiantlards Or ganirat ion (I-JO) (l '0 l «, j 5167). I am challenged by one, there is considerable disagreement as regards the requirements of the reluctant branch, between ANSI and ISO, with respect to the effects of installation and the immediate term luxury field, 1 cs parameters that correlate, that affect the simiJandad, vary with the type \) and The design of the meter, however, is linear, and it is seen that a meter with a concentric orifice, with a square edge, derived from the flange, exhibits a structure of turbidity, global turbulence and a location of derivation. of great sensitivity to] the average speed. í.
In the United States, the current design practices use short pipe sections, arranged upstream, with a flow-through conditioner, 11 LO, pipe groups from the American Gas Association (? .OA), for - , provide a flow "pseutlo-totaJ mind development", in accordance with the applicable measurement standard (A YES 25"'. 0 / AGA Report No..' API (American Petroleum Institute) MPIS, chapter L \" . '.). Most of the American facilities consist of 90-degree irrods or configurations of coi -ctar Lt_. complex, located current to iba of the orifice medidear. The groups of tubes, in combination with the sections of.1 pipe of seventeen pipe diameters (17 * D) have been installed in an effort to eliminate both turbulence and distorted velocity profiles. Ten are required ditimfc.t os (lo *!)) Of straight pipe between the aditamen o pipe located upstream and the output of the group tubes, and seven diameters (7 * 1)) of. Straight tube are needed > between the exit d l group of? tubes and the orifice meter. Two design practices are being used in the Western Europe. To provide a "fully developed pseudo flow" according to the applicable measurement standard? i. ISO 5167) - long lengths of pipe located upstream, with or without flow conditioners. The majority of the installations in the Western E-uroμa t, consist of complex collector confi ur ions, situated (upstream of the orifice meter. tube diameters (100 * D), without flow conditioners Lube-aria tubes of 1 tube diameter diameters (42 * D), in combination with aeond? effort to define the turbulence as a result of the distorted speed of the files Three types of flow conditioners have been widely used in Western Europe: groups of tubes, designs, and designs. - They require twenty - «- > diameters (2 '> * D) of straight tube between the pipe fitting if upstream and the flow conditioner, and twenty-two diameters (22 * D) of straight pipe between the flow meter and the opfat meter 10 The optimum flow conditioner must obtain a number of di stern objectives, which include; minimum deviation of the empirical discharge coefficient (or sensor factor of the meter) for both long stretches and short stretches of? tube; low permanent pressure loss through the flow conditioner (ie, ba to "proportion of -? front.1"), under a fault or low sensibility regime 1 to the accumulation of root causes" »up; elimination of turbulence and flexibility for the use of short stretches so comea of long, straight, tube lengths. This elution can be achieved by means of a flow controller that produces a factor of velority and a structure of turbulence or averages time axi alíñent sim tricos, pseudo-to ta l developed mind. Ada, of course, is it also convenient that the flow conditioner should be submitted? a rigorous mechanical design and that has a moderate construction cost. - Fp the memo is descriptive and in the claims, when the «turbulence angle is -1 less than 2 *, when it is convincingly median e > The use of Pitot tube devices is considered to be the turbulence or substance removed. In addition, when the l lt empirical discharge coefficient or i to deviation of lime to meter bracket, both for short tube lengths and for long sections, it is approximately 1/10 of 17., it is assumed that it is "minimum". The designs ISO and A.6. A., which are shown in the 5 figures 1A and IB, respectively, are intended for the "mm" -tr turbulence. Both designs include a group of. tubes that have the same length and the same diameter. For the design A.G. A. (figure 1L <), the length of the group should be at least three times the diameter of the tube. For gauge sections of more than 5 mm, the group typically consisted of ninety tubes arranged in a circular pattern, with a group length of rivers up to three tube diameters. For smaller meter operations, the group consists of seven tubes arranged in a circular pattern with a section ¿Group of three tube diameters. Both for ISO designs and for designs A.O.?., The loss of pressure in the low pressure, the low cost design, the cost of construction, the failure rate is low and your bulence is eliminated. However, the performance of these ", Devices for a minimum deviation of the coefficient of Ue. Empirical caring, both for short stretches and for long stretches of pipe, is unacceptable ?. I ambl n the velocity profile and the turbulence structure measurements have shown that the A.G. . and ISO can not produce JL < _) conditions of f Ju or μseudo- totally disarmed, within reasonable distances, due to its high porosity and constant radial resistance. Is this due to the instability so the graphs of dc ^ flush level performance? the figures ic- and 2.1. j the Stans &t flow < ? ' Te-ule, which is shown in Fig. 2, is designed to isolate the deliverables of high-quality meter piping. The design consists of a group of tubes of different lengths and diameters, arranged in a circular formation. The permanent loss of pressure is a, the cost of construction is high and the prototype designs * are rigorous and complex. While the turbulence is eliminated, the failure regime of this design is unknown. It has been reported that the positive velocity-xh? Bo profile of average speed in time and structure? 2b psourlo- turbulence totally, d. sa o- sides, pa to stretches ele tube, short. L-? Escalad c'.i i geometric device is a problem, when considering a range of tube sizes. L-ts igu s - • y? respectively, show a turbulence eliminator of the type? pallets, E-toile and the-, lUr Htaving and Londationmg Associat on (AMCA). 11 Etoile design consists of three flat plates, of equal length and width, assembled in a star-shaped design, around a central hub. While these designs eliminate turbulence, it is known that Ltoile does not produce H¡ conditions of? pseudo-total flow you developed in reasonable distances. Similarly, the AMCA design (Figure 4) was not intended to produce a pseudo-t flow to the irant or deaf. Figure 1 shows an example of wire mesh tilers, assembled in the manner of an egg rack, inside a pipe. The fine malt sieves are not practical in an industrial environment due to the high loss dt ~ > permanent pressure, non-rigorous mechanical construction and high failure rates. 2".? Perforated plates, such as the design of Spren showed him in the figure ó. They were designed for the alterations of the tube with respect to the flow meters to measure the flow of steam. The design consists of three perforated plates, spaced to a diameter ^ i-, separation and connected by bars. Each plate has a porosity of approximately fifty percent, with regular perforations distributed in a specific hexagonal design. I? 1 size dr? the perforations is approximately five \ > or one hundred of the diameter of the tube. i- While the designs eliminate turbulence, the construction cost is high, the design is rigorous and complex, the pressure loss is very high, and the failure rate is > s moderate. Ada c onal monte, the performance for the minimum coefficient deviation, for short tube lengths, is unacceptable. Finally, it is believed that the design does not produce pseudo-flow conditions that have been developed for short sections of tubes, due to their radial resistance they are almost constant. The distance from Heilinqa shown in Figure 7 is a ? ~, Modified Sprenl design that suffers from many of the drawbacks of SprenHc1. The design of / anl-er, shown in Figure 8, was ta tared to isolate tube alterations, for the purpose of testing pumping efficiency. The device or consists of a perforated plate connected to a grid or construction of an egg basket, located downstream. The herd included "holes of five different diameters, each hole having a specific uiic ation." The permanent pressure loss for this device is high, as is the construction cost. While the design eliminates the Lenca l ur bu, the? L? serious does not provide minimum deviation rlt1! coefficient of empirical discharge both for short stretches as well as for sections and tubes. Therefore, it stipulates that the design does not have pseudo-flow conditions for the entire pipe configurations. b.1 Akashi design, which is sometimes called the Mitsubishi design, as shown in Figure 9, consists of a single per-hole plate with 35 holes. size of-? Hole casing of 13 percent of the diameter of the tube, and such a thickness of the perforated plate is equal to the diameter of the hole. The plate has an approximate porosity of 5 percent. The distance of 1 holes e < - dense towards the center (center of the tube) and scarce around the periphery (wall j_tj tube rail). The holes in the upstream holes are bevelled. Although the device produces a permanent pressure permeate and the mechanical design is rigorous and simple, is the performance for minimum deviation of the coefficient of? empirical discharge, both for short stretches and for long stretches of pipe and unacceptable, since the design demands a constant resistance at almost constant. It is believed 1 addition lmor. that the rich design produced flow conditions pseudo-tottilment e rlesar roi 1 ad «= .-- > for codas the figurations (Je? tubes, debuJo to quej does not provide a 1 '. minimum deviation coef irien coefficient Le- of empirical dr-scarpa for Liraixras cuts and sections the gos rio tube »bi device dr? Law. (shown in the figure, i amblen is a single perforated plate, but with 21 holes.) The thickness of the plate is approximately * 12 percent of the tube's ametry (D), and the silver has a low density around it. of such percent the holes are arranged so circular formations would be spaced around a central hole.The first and second fi rmations have / and 1 hole, r isot 11 goes ei? fc. I 1 size of.- maximum tai hole in the middle of the tube, o.1924 * 1.) and decreases in size to the first circular orifice, .3 é > 9?. * D and adi c i finally decreases in size to the second i ormation, 0.1462KD. The diameter of the hole (for the first and for the second row is approximately 46 and 84 percent of the diameter of the tube, respectively.) The holes in the holes, located upstream, may be beveled. One more, such as for the minimum deviation of the discharge coefficient (ampoule for short sections of tube 0 <J-> iru.eptiible, pore is suitable for sections. The design can produce pseudo - total conditions, which are axially symmetrical, only for short lengths of tube, and a further development of a device shown in US Pat. No. 1, 2b-n, 716. , from Wilcox, is the Mari-r-a-Labs. The kicker shows a flow conditioner comprising tubular passages, in the area i-nitro sporiferous tubes blocked.While the pressure loss per manenti.- is ba and the mechanical design is rigorous and simple, c, and isli ina The turbul The majority of the tube configurations, or operation for minimum deviation from the level of empirical discharge for short tubing, is unacceptable. I'or cunsa gua e-n te, so believe-1 that the design does not produce pseudo-flow conditions Imen u lv evolve the la paira for all configurations of tubes. What emerges to be necessary is a flow conditioner for the use of dt1 rain gauges to be mediated by the Knes which are its r 1 citanmen t t < «Precise pair« to industrial and iiscaLe applications. LJ ac ndicionador de fJu.it. should j ü reach all the dt criteria? design indicated above, leading to the elimination of Í < ? tur bu Lenca y obtaining a minimum deviation of the coefficient 1 of empirical discharge or fai tur of calibration of-1 meter, both for short stretches and comets for linear and straight sections of pipe1-, through the production of μu-rfil rievoj oca pr priece. from you pseudo-ota I in the disarmed and a structure of turbulence. Ad 1 c 1 ("naJ ent t-, the device must have a low permanent pressure loss (frontage ratio) through the flow control device, a low rate of faults • 1. insensitivity to the accumulation of size factors.
J i.
At the end of the day, the device must be the object of a rigorous mechanical engineering and must have a moderate cost of ownership.
BRIEF DESCRIPTION OF THE INVENTION A flow conditioner according to the invention - the flow characteristics respec a The alterations induced by the t and a, thus, a more precise measurement with the fluids that flow in the tubes. t.a invention a-can - to optimal objectives for flow conditioner and man l ene; a Luxury 1-a-mind or such a mind role in a pipe, with respect to the fixed direction. L < For more information about the 11th year, please go ahead. »When the conditioner is produced, it produces a self - esteem effect 11 --ador for the purpose of seeing the t irtness and the structure of tur bulence, dF-iitro Lb of an axial distance co ta. The disposition of the invention introduces pseudo-total flow condi- tions developed for both stretches and for the branches of the tubes, such as the sample.
. ''. I by means of the reliability in the coef fi cient operating graphs. Ada ciently, and very importantly, the deviation of? 1 coeaf icionte-1 empirical discharge or meter calibration factor, both for sections of pipe sections and for long sections of a pipe, is t? to an acceptable minimum. The accandici eanador de f Juju de attue CJCJ with the invention exhibits - l a loss of pressure even if a rigorous and sim- ular mechanical design is applied, the failure mode is low, and it is eliminated using the turbulence. the readjustment is easily obtained _t of existing facilities. In view of its objectives, the preferred device according to the invention comprises three sections: an anti-turbulence device, an adjustment chamber and a low pierrel device; assembled each H > Secuonciai in a spatial order and at specific distances from each other, in the tube that 1-takes the fluid to be measured. Ln de ter my knots cases, when the fluid flow pattern does not need m.?d? D < -or. against turbulence, erif r) ncts only - is the equivalent1 of a jLj-de pitcher necessary? adjustment and a profile device, according to the mechanism. a diametric contrast with the previous technique, which has promoted the use of devices against the current turbulence aba JO of the profile devices, for more than 1'.0 r--? «Iños, the present invention teaches the use of a device against turbulence! located upstream of the ptarf device l. The flow regulator of the invention can be assembled in advance to a module unit that is then installed in a pipe, at a distance of 1 / Default current to riba ele: - a meter of f Lu yy more to the la te a predetermined distance, downstream of the nearest force of alteration of f luxury «.valve, elbow, complex configuration of pipe), located upstream i-, of the luxury meter. The electric conditioner is oriented in the pipeline so that the turbulence device is more crowned above, followed by a downstream adjustment chamber and a device or piaea. , if further away, current-1 ataaj.o The anti-turbulence device, according to the invention, reduces turbulence to less than 2 ° in its output. Traditionally, the anti-turbulence device will generate a slight distortion to allow That device, of profile gc-nere pseudo-ally disarmed flow conditions According to the invention, a design of anti-turbine device of the tube group type is preferred. The design eliminates the concerns of geometric similarity and gives another unit to lower the production rates.Additionally, the design generates ripuctible turbulence intensities and shear stresses due to reprc-ductility. iblo, irrespective of * the t-rations of J i pipe upstream. Acclimatically, the design provides a constant radial resistance and a factear IU Low lock. Finally, this design gives the assurance that it will eliminate turbulence. Immediately downstream of the contraction device, there is the adjustment chamber. This camera is necessary to reduce or minimize the interaction in the device against turbulence and the device of the filter. Adie i onail en te. The camera also allows the uniformity of the turbulence structure to develop before? the input «ti device. profile. Essentially, j_u him? Adjustment camera is a dc live tube section of cc «n < frictions, located between the anti-turbulent device and the profile device, of sufficient length to achieve these objectives. Run on tt? down the sedimentation chamber is I1! profile device, which generates a pseudo-to-timed flow developed, from five to die-: tube diameter diameters, in downstream direction. According to the invention, a radically graduated plate, of specific design, is considered to be the optimum device of <; profile. This plate of profile di? In accordance with the invention, it combines the strength of the cement with the appropriate porosity of the plate to produce a pseudo-flow profile which is disarmed. The radial resistance of the graduated device is achieved by configuring the device by means of a The uneven distribution of holes, as a function of its radial position. The collocation of the circular formations, together with the size and number of holes in the respective formations, are critical. The size of the holes contributes to the intensity of the turbulence and to the E-ri Side downstream from La pLac-? Aditionally, the placement of the circular formations contibutes to the profile of the average time velocity and the turbulent medium downstream of the μiaca.As a result, the interaction of the porosity is critical. and l_u the diameter of the holes The downstream of the profile device is the measuring device The distance X between the profile device and the measuring device is critical The invention is that X is as low as 3D ca, depending on 1 cap of measuring device used. This short distance is important, especially when replacing "-» meter tube shorts or adjusting new ": meter tubes in an area where the space is absorbed. Thus, the invention offers a significant advantage over the prior art, since the devices are compact and provide arondie to the upper c-anto of the flow, so that the minimum deviation 1.0 can be easily obtained. .17.) Of the empirical discharge coefficient, or calibration factor of the meter.
,: *.) - BRIEF DESCRIPTION OF THE DRAWINGS be? I can obtain a better understanding of the present invention when the following detailed description of the preferred modality is considered, together with the following drawings, in ios. which: La Tigura ?? It is a schematic representation of the turbulence eliminator of the IEO design. The IB Fiend is a schematic representation of the eliminator of turt.ulernr.ia design A.G. . . Figure 2 is a schematic representation of the design of the turbulence eliminator Sens?, .eule. Figure 3 shows a schematic representation of the turbulence eliminator of 1! E-toaio pallet type. Figure 4 is a schematic representation of the turbocharger eliminator and pallet type AMC. It is a shaft of a sieve or mesh. ilambr, assembled c - n uri design of egg basket, to be used inside a pipe. the figure £ - is an e-squemá ti i.a epresentation of a -or design of? Fipren flow conditioner. le1, which shows three perf orated plates, is. You are attached to a diameter of one, connected with bars. The fiqur / is a r prensen laei on osquema 1 ca of the design of? -lellmga »:? Figure 8 is a schematic representation of the design of / anl-er, showing a perforated plate, connected to a grid construction or egg basket, downstream situation. 5 I nterprise OB shows the tai orct and the distribution of holes in the perforated plate. Figure 9 is a schematic presentation of the perforated plate design of A ashi. L ai to 10 e-s a schematic display of the perforated plate design of La. Figure LJA is a side view with a modality of flow conditioning in accordance with the present invention to c! M. I a f? Gur «-? The ili is an extreme view B showing "j", the tubes constituting the anti-turbulence device of a flow meter mode according to the present invention. I ficiurai J ICES. The extreme view C that shows the distribution of the holes in a profile plate of a condensing device of confo idad tionality. -? present invention. Figure 12 e-s a mode of a flow conditioner according to the presenti? invention, which shows a device against urbulepc equipped with eyelashes and a profile plate equi ada with tabs, to be listed within a pipeline. I a i i i is a schematic diagram, which is not to scale, showing the installation of a modality ~, of the flow conditioner according to the invention in a tubt-ari. FIGS. 14A and B show one embodiment of a profile plate according to the invention, with three formations here or there. j_u The figures. I? and B show one embodiment of a pe-rfil ele-1 plate according to the invention, with four holes or perforations formations. Figs. 1 A and B show one embodiment of a profile plate in accordance with the invention, with four forming formations or perforations. FIGS. 17A and B show one embodiment of a performation plate according to the invention with five tormacions of >; holes or perforations. Figure IB shows a schematic view of a test circuit used to compare flow conditioners of the invention with other digests Figure 19 summarizes the results obtained when a tube test was used. test tubes of 17D, 15D and 100D in length, with an orifice plate of || = .75 .t. ean the apparatus with the figure lt.
Does it summarize the empirical coefficient of the data from? discharge deflection for the ÜK Law --- flow conditioner, r-n uri test tube of 17D length, used with an orifice plate of (3 - e.67 and a 1 in place on the elbow of Figure IB. A fi aura 21 I summarize the data for a group of? AGA tubes tested in a 17D test tube with a long hole with a hole. ~ - 0.67 and one? e-n I g of the elbow of figure 1.3. j_a Figure 7.2 summarizes the empirical discharge deviation coefficient, obtained using a dt1 flow conditioner, with a J 7D test tube in length, with an orifice plate that has a pressure of À3 - 0.67 and a T at the luqar temperature. corlo de-1 ai iau a lü. ! 'ZZZ;, i fineness coefficient re-add eJ e-mpl ico laughs deviation efe download mode obtained when a flow conditioner in accordance with the invention was used, ba or same conditions? they used in figures 20 a Figure 24 heard the empirical clt-discharge deviation coefficient obtained when a modality of the donor stream was used in accordance with the invention, the same conditions used in the fineness 23 were used, except that for the points shown by a square, the factor 13 was 0.7-. and the river flow alteration was caused by a rust; and for the dashed points marked with a triangle, the fl fl of o. 7 • The reaction was caused by an elbow.
DETAILED DESCRIPTION OF THE PREFERRED MODALITIES The flow sensor according to the present invention preferably comprises three parts: a device with a turbulence, an adjustment chamber and a deforming device, arranged in a specific order and with 0 specific distances one with respect to the other, to ruble 3 alterations induced by the pipe, with respect to a flow meter and, dt? That way, allow a more accurate measurement of the fluids flowing in the pipes. More specifically, the flow conditioner the invention eliminates turbulence and turbulence to less than or equal to 7 °) and provides averaged velocity profiles in a "purposely" developed time and turbulence structure such that any deviation from the to laugh at the desire, empirical or factor of ü calibration (meter Je cj Monkey 1/10 or 17 .. L-_n of my nothings tar-t ci cumstances is not necesaipo a device against the turbulence due to the nature of type., fluid flow-cir , free of turbulence or little turbulence). In this case, according to the invention. b only an equiv. of the adjustment chamber and the profile device is necessary. In order to more fully describe the present invention, refinement is made to the modalities shown in < Figures 1-1 J Z and Ib- 17, illustrating flow conditioners aeuerrica with inve tion, but not limiting the nvunca i ng as described ean present Ja and claimed below. For installation in a pipe, it is possible to couple the device 14 against turbulence to the device 32, by means of spacers 18, as shown in Figure 11 ?, to produce a unitary structure. The anti-turbulence device 14, as shown in Figure J1, consists essentially of a nineteen-tube group, one of which has a diameter.
I-, nominal tube that is approximately J 75 d _-- l tube diameter of which tro? will adjust the flow conditioner (D). From? The tubes are arranged as shown in Figure 11B: a central tube 2o, surrounded by rivers formations of tubes of equal diameter. Lemen present preferred and all tubes are of the same length Lx, ranging from- o.2 * D * D to about 1, very preafer ibleme-nte, lrededor O.bü determined in deanele? in the inner tube area. üi well The above description refers to a According to the present invention, other anti-turbulence devices can also be used. Thus, the turbulence cont device could be from? a palette stream or a honeycomb design. The palette design presents certain limitations with ~, regarding its equipment in existing facilities. The dark-sounding di- mension represents the same geometrical limitations when considering the variations in the diameter of the tube and the size of the honeycomb. You can find them in practice. In such a way, the preference for rit design group of tubes, shown in Fig. 1.1 H, not limiting the type of device 1, against turbulence that can be used according to the invention. Downstream of the device 1 against turbulence there is a camera of ajuete 30. The length of the j_ «¿, adjustment chamber Lj, can be adjusted by J ai selection of the length of the separators 18. Alternately1, The can be finished otherwise fixing the device 14 against turbulence and the profile device at a selected separation distance, without the use of spacer lenses. The length of the adjusting chamber is twofold and must be sufficient to effectively disengage the turbulence of the device of the profile 32 and, thus, the The length varies depending on the speed of jet formation of the fluid being measured. With base in the test shots, L. varies from lR # D to 20 * D, -iproximaclaimentr-a, di- - preference is 2 * 1) af «* D, approximately, and preferably it is around? 3 # DEn 1 ai f.f.-., the device per f il 32. df- conformance with the invention, is located at a distance L 4 «-, from the measuring device, what? enough to uncouple the meter device r? 2 from the effects of the device? profile 32. The distance will vary depending on various factors, including the type of measuring device. For example, if the measuring device is a Or a turbine meter, then the pr-arfil plate can be placed as close as possible to the meter, or less than 0.5 D from the side of? the inside or the right side above the turbine meter. On the other hand, if the measuring device is a plate with holes, then the face located current is lower.
JL5 of the device dt? For example, in prefix in bleame you should * be located at a distance L_ », equal to or greater than approximately 3¡KD from the plate with holes. E-p ge -ral, in any meter operation, critical dimensions and the dimensions according to the invention are the length of the scanning chamber "and the distance of the profile device of the measuring device L? . l-'tar c-1 j ernpio, in a typical pis jal with holes, using the Ja &d i mean sitan e < Preferred, the total length that is occupied by the indentor of the flow of the invention can be: -8 Lx + The HL + L .- * -? .5D + 3D + U.12L.D i- LD = • 6.6b In this way, for a tube with an internal diameter of 10.16 cm, the distance is only 67"? ! rr «c. In the case that lat flow conditions in J i , tuLjer-.?i indicate that you need an anti-turmoil device, then the length L-. it extends from the nearest flow alteration vcodo, F, valve, etc.,) ubi fall commented to arr.e. ele1 c-i flow meter, to the profile device. In this case, the length of the "adjustment camera" equals "ts" from 1 * 1) to 2 * D and, preferably, from »around 2 * D to 5 # D, most preferably, at least around 3 * 1). Downstream of the trimmer * of setting 30, there is the device of profile 32. The profile device is a jLjj pia? Ir. «-? perforated, radially graduated, with thickness L- *, where L, prere- erence, is on the scale of? (> .10 * D to .5 * D, approximately, mu / preferably to around?, 125 * D. They have conr.i degrade J «? s plates radially and axially 2 > graduated, as alternative profile devices; However, the cost of trying this test is prohibitively expensive. However, it? Do you think that they will function as profile devices jointly with the turbulence device and the camera? adjustment. The groups of tubes -, radi- ately graded and the groups of radial tubes and 2 -ixi ally graduates were also considered / r cast by various azones. As shown in Figure 11C, the device profile 32 preferably has three «-, circular, spaced-apart dispositions of holes or perforations pass through, spaced around the center of the plate. Liter designs are shown'- in Jais figures 14-1. In the first formation or central formation of and through holes or perforations of the device of profile 32, centered on Leas places of the circle of peda diameter, of? preference there are three holes with diameter di. In the second formation, in e1! sit? dv a circle with diameter pcd_r, preferably there are eight holes with diameter d2. In 1 < 3 the third peripheral formation, final, at the site of a circle of diameter pcd-., Preferably there are sixteen nths with diameter d3. (L s "dimensions" dr, and pcdr, really are dimensions divided by the internal diameter D of the tube, to obtain a number "without dimension"). ij f-.n sum, the porosity of? the profile plate is preferably from approximately 60 to approximately 60 '/ .. The holes in each circular array are equally spaced around the center of the plate. The inputs of the upstream holes of preference are 2b b si-lari-ts or contoured to reduce permanent pressure loss. However, the edges of the holes, located corneant-down, are preferably square and sharp to reduce at least the advearsa reaction with the perior flow. , Ln Ja formation ce-ntrail, -.entry on the sites of the circle of? diameter pc_d i, it is preferred that the porosity v l '' J) range from - '. O to i3.u' > r-, approximately-, most preferably around (Je? j.) U7 .. The "size" of ios .holes, expressed in terms-: no dimension (- of * c? r, i? as a fraction of D), di, is based on the following eciirition: di - i l] ° -ßi (n 1 * 100) i 5 so where n, what-? This is the number of holes in the central formation, it varies from two to five, but preferably three holes. The porosity of the second formation (t'2), centered on the sites of the diameter circle ped, preferably should vary from approximately 1 .07. to approximately 2t.07". very pref e t b eme-rite ?, around 207 .. The size of the hole for the second formation d2 is based on the following equation: t'2 (12 - ÍC | ot ».}. 2b (n2 * io?) 71 where n2 is the number of holes in the second formation, and they vary from five to eleven, but from? preference is eight agu jero. I prefer him, e! The first step circle of the first formation, expressed in non-dimensional terms, is given as follows: peda - = »1125 Adie i onaimente, e-1! diameter of the circle of step 10 for the second circular formation (pcd_, »)" expressed in non-dimensional terms, can be determined by the following equation - f «cd2 ~~ max í [0 .4 V ~ O .0 6 * ( P 3 ~ P2) J,. -.00 j The porosity for the third formation is collected blunt the residue of the total porosity of lei piaca (Pt) minus the porosities for the central formations (Pl) and second i P2). De-1 tai i mane a, i at porosity for the third formation is found from the equation: J? P3 - Pt - (P1 + P2) Adie: ional men t, the hole size for the third formation, d3, expressed in non-dimensional terms, can be found from the equation: P3 (13 - | I '-'- "- (n3 * 100) . t? where n3 is the number of acutes of J at the third formation, and varies from approximately eleven to approximately twenty-one, but preferably is the result of the digestion here. Finally, the diametre of the pitch circle for the third circular formation (ed-s), expressed in non-dimensional terms, is based on the following equation: μcd-s "= 1. Hb / bO. O? 4i * (P3 - P2) J lu The containment height is defined as the minimum solid distance, on the profile plates, between the holes» -, par-an fes or savers that * form the circular forages Within the desired limits of "porosity of j" -, piara and limitation axis the loss of perpendicular frequency, t prefers, additionally, qut? heights of contention (dhl, dh2, cIt "? 3) exp satelas tnt non-dimensional terms, among the circular formations, preferably greater than or equal to the following terms: dh2 > 0.O1O0 dh_. > O.020O I tures of containment, ex pression in non-dimensional terms, can be calculated using the .ígn tent s ecuací one »c l pe d2- (d 1 + dr -_ * + pcdi) "J dhl f pcr: .- \ d2 + d J.-i-pcdl) 1 dh2 Ll .0ooo- (d3 + -pcd3) 1 t? dh In order to convert the non-dimensional terms used, the di ,ections, real, se, »should be multiplied by the internal diameter of the Lubo (D). Clearly, a person who has ordinary experience in the art, a vt? - that you read the above description and cast ai / ni i? < _? ra -.atlt < with the state of the art, you will appreciate certain changes and deaths that are considered to be patrie de.-lai present invention, some of these modifications include modifying the number of holes in IV The circular formations, always and when J =? Equivalent porosity for a respective formation approximates the values and / or the equations indicated above. In addition, the number of circular formations may be increated by replacing the second circular formation by two circular formations, "tightly packed, having a combined equivalent porosity approaching the distance of circular formation, as described above. . In the same way, the third circular formation with circular formations can be replaced «J ap etament and em bers that have a combined porosity equivalent water i tlt1 1 < ? torcera circular formation inelividuaJ, which was described anteas. A plate of pe - r f i 1, dt? conformity with the invention and as shown in Figures 15A and B "that • j_ has four formations laugh-1 holes or through holes, can be designed by modifying the equations used for the design of three formations. Thus, for example, the second formation can be separated into two formations having a porosity equivalent to lat. ^ jr. a plate of three formations. The diameters of the pitch circle of these two replacement formations, expressed in non-dimensional terms, are given by: pocll'i: - O.Ü6 * pcd? cdl - J.22 * pcd2 2u The diameters of Leas through holes a and d22, expressed in non-dimensional terms, are preferably approximately equal to 0.111 '. .ltern.i t ívamente, t i as shown in g figures 16A and l¿. or can produce a profile plate of four formations, according to the invention, replacing the third formation of a piaca of three formations, by other formations. In this case, the sum of the porosities of the two replacement formations is approximately the same as the porosity of the torsion formation would replace. Also the diameters of the passage circle, expressed in non-dimensional terms, are as follows: pcd3._ »~ .1.047 * prd3 10 Do you read the diameters of the holes so the two formations of? Replacement, express them in terms that do not give you an idea, are at 0.1x. There are five main principles in the development of JL5 the five-tone plate. in accordance with the invention. The L-ray is shown in Figures 4A and B. In this case, both the third formation and the second formation are riveted, one, by two formations. Figure 13 is a schematic sectional view of , _ > (_, a tube.'ría? bO laugh diameter í >; c with a flow conditioner according to the invention installed upstream of a metliclor device b. L < - direction of flow of chaste fluid shown by arrow A. An alteration, not shown, can be an elbow, a!, a cloblarnientra, a valve or other restriction of the tube, located upstream of the measuring device, in a length L. Typically, l is selected. To allow the fluid to stabilize after passing through the alteration, in order to reduce to the mill the effects of the fluid extractabilities on the measurements taken on the measuring device. 5?. In accordance with the invention, the flow conditioner is interposed between the alteration and the metering device bl '. t- i device tc.ntra turbulence 1 ¿\ (shown as a group rich tubes, but that may have other IO settings) is to place it at a distance- L < - > of the alteration. In the case where the anti-turbulence device comprises a group of tubes, then the length of those tubes is immediately downstream of the device against Lurbulenu, which is the size of the adjustment. has a length l. «. The adjustment chamber terminates on the device side with J Z, most commonly as a perforated plate, with thickness L-r. Downstream dcal device laughs? profile '• 2, at a distance L-, t ^ r-t a the measuring device 52, shown as a plate of o? ificio, although they can be used - Your other measuring devices. As stated above, the conditions of the fluid in the pipeline can be de? It is the nature of the device that could be eliminated against turbulence 14. Under certain circumstances, the eli spositi see the profile of conformity with the invention is', 7 - < , measured at a distance l - > current 'downstream of the alteration and I,' (nrpmte ar of the meter device b2.) Thus, the volume within the tube, defined by the length L ', served as an adjustment chamber 30. The ; =, with i ormadad with the invention has a unique design and, contrary to the devices of the previous technique, produces? a pseudo-total flow that is closed and that is free from turbulence and is symmetric axi-aligning, with a profile of 1, which produces it in yourself and a tur tur structure that have values that they are close to those found in a fully developed turbulant wave, and which are independent of the axial coordinate. The modalities of-1 The plac es of perf il you intend, according to the invention, are shown in the s ^ figures 14A and, 1 ü-A and B, lc ^ and JH and 17A and B. These figures show the location and size of the holes or pe in the plates of "pe" for the designs that go from those that have three hole formations (Figures 14A and B) up to here, where they have five holes attached to each other (Figures 16A and 10. Additionnally, on the corpendor side to From * the profile plate, the holes are chamfered to reduce the front edge, as shown in the embrasure, on the bottom side, the edges of the holes are preferably 2b per ular to the plate, as shown. 3Ü Fig. 14A shows wing 31 downstream of an embodiment of a profile plate 32 (In accordance with the invention, having a body 36 paired to disk, with diamet or D, with train forming ions 33, 34 and 3b of holes «- through ... The shown sample 33 has three through holes, the formation 34 has eight and the 3b has 16. The through holes * that each figure are dimensioned as shown and can be derived from calculations shown more ar i a. From Figure 14B, the current upstream of the 37, which looks at the incoming fluid, may have wools acnef 39 in one of the entrances of the passer-t. The typical chamfers are at 45".: 3 However, the ends of the exit holes" from the through holes, so 1! Current side to the floor 31, have sharp edges. by a weight 38 of a diameter equal to about 1. bü and with a thickness L? that allows me to adjust the pin 32 between two tube flanges, as fine as 3 b and H show a modality of profile plate 3-- with four formations 41, 42, 43 and 44 of (J through holes.) Mar 43 has three holes with diameter di, formation 4, 'has eight holes with diameter rJ2, formation 43 has- eight holes with diameter d2w l ~ d2?), and formation 44 has? 16 holes with diameter d3.The calculation of these sizes of hole is shown with.
Figures 16? and B show a modality of one ("laque el perfil con cuatro f rar mar i orie1--: 4b, 46, 47 and I8. In that case, the torcera formamiento (formation _ ') laughs Figure 14 ha s. I would launch for two orc a onc-s, that way. " «=, Formation 4b has three holes'-: through, the 46 has eight through holes. Ja »4 / has 16 through holes and lai 48 It has through holes. The diameters of these passers-by can be different, in each individual shell, as explained previously. Figures 37A and B show one embodiment of a profile plate 32 with five formations.The first formation 54 has three through holes, with diameter d3, the next formation b6 has eight through holes, with diameter dl, ai The same as the fo-> mation The two exterior formations: b8 and t «V, each have 3 or through holes, with diameter d Z and d3_,», respectively, as sr- shows, d3 The following comparative examples and the following reference figures are illustrative of the The invention is in no way limiting the scope of the invention, as described above and is claimed later.
EXAMPLES 2b 4 or .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. .. You are obtainable in commerce. During ("..this test a circuit was used to test, such as cal - Figure 8 is shown on the figure 8. The bottle enters a backwater bottle 100 and flows to a straight section of tube 102 of internal diameter 11, with a length of 1 D, as shown. 1-21 tube bends corners in an elbow l 4 that has? a length of 2.2D, when measured from the center rle-1 Jai HJ pipe to the center of? a flange, at the end of the elbow, as it moved in Jai furat 37. From point 304, the gas flows towards a pipe line 106 (the length of the test tube) that has - the -t length L (which converts to toros no dimension dividing them between D) that is extended j5 from the elbow to a plate 108 holes. The flow conditioners that are going to be tested were placed or the length of tube 106 at various distances X from the measuring device lio. To obtain non-dimensional terms, the distance X e * ntre-e-1 was divided! diameter -Jl. ' internal I) of the tube 106. For a measurement of the measurements taken, the internal diameter of the D pipe was 102.28 mm and the length of the tube was i / D (except for the test), with the group dea of AGA tubes, which also used lengths of Ibu and 0D). The fancy alteration was made either through a 90 ° stage (such as 304) or by means of a 1 installed "(order of the ric-1 section of test tube 106). designation deviation Cd (7.) refers to the percentage deviation of the coefficient of the quality of the luxury qualification factor, measured from the fully developed flow side, Experienced by a flow meter due to the influence of the luxury conditioner and the pipeline expansion, with this approach, the tank can be closer to the zero point. As As explained previously, a "minimum deviation" from the empirical meter driver (ti) is considered to be more or less 0.1"/ .. Acia ci a, I me n n e the fac The ratio of the diameter to the holes of the plate with orifices is given with respect to the internal diameter of the pipe in which the fluid flows (s). The results obtained when a group of AGA tubes was used in the apparatus of Figure IB, with the tube lengths (Je-a test 306 of 17D, 4), are shown. SD and 100D Within these tube lengths, the beam of AGA tubes was moved with respect to the plate to the hole (of i = O. / b) so that its distance X from the plate was It could be expressed as a function of the diameter of the tube, it is dt> pr, as X / D., Ll number or laugh.1 Key ol rí "that characterizes the flow in 2'¿ í i pipe was-1 of -.- 900,000. As you can see from »figure 4 '. 1, Is the group of AGA tubes inadequate for the flow and only has it? a minimum deviation of the coefficient meter f to ra, u uanrio: L t-371); X / ü - 12-15; i M-45D; and X I) - 8-95 L t 1 > > ? Ds and X / I. "- around (Je. 4b.
From? similarly, the figure .'.U d-.?m?e.,tra that, pair. "*. a L7D test tube of? long, the accumulator of flow i? of I aws. only- is utiJ ads ances of X / I) greater than approximately 12. bl factor (3 for Law's conditioner tests was 0. 7, lime number Reynolds rie of the value that? t luye was? river 90 < -, 0 »>? V the alteration was a 1, located c rriente.- a riba de-1 tube dt1 meter j« j Figure 21 shows the results obtained (When a group of tubes is placed in a tube of a 7-day test tube, it is located below a disturbance that is a 1. None of the data points shows an acceptable deviation or "minimum", since all are over or of?> .27 .. ti factor fi paira ol meter-orifice was 0. / and ol num o de fío no Ids dc? L flow was »de 9oo .ot.H. "The fiqurai 22 is a summary of the results obtained using a flow conditioner lr I» V in a test tube of J7I) dr-lorycD, ion a plate orifice that ? J has an í. Rie O. ZZ and a Flow number F.oynolds of 9? 0.00 «r > .
The alteration located current? up was a T on the tube. As you can see from the results, the minimum deviation of the meter coefficient was only obtained when the distance from the orifice meter (X / D) was on the scale of 7 to u. With diametrical rats, in FIG. 23, a flow conditioner conoiity with the invention, under the same conditions (a meter tube of 171) of 1 lare, a plate of holes with [3 - - 0.67, an alteration located 0 upwards as an I. / a Reynolds number of 900, -.00), shows a minimum acceptable percentage? of deviation of meter count, when X / D is greater than just 5.5, approximatively. The figure 24 ref shows the results obtained when the flow conditioner according to the invention was used under the same conditions as in Fig. 23, except that for the data shown by squares, ft was- ). £ > / and the aiter tion was- a ccacica; and for the elementary points shown by triangles, the factor ß was 0.75 and the Q alteration was uric. With base 1 in the results, it is clear that, when X / D is greater than just about 3-4, the percentage of deviation from the meter coefficient is acceptable and the a) minimum required (ie, s less than 1) 7.). b The above tests demonstrate in a way the superiority of the flow cycler of the invention which obtains a minimum percentage deviation of the flow rate at distance meters (Je X / D ha1). smaller than the luxury air conditioners A6A, from La so liar V. In a very important way- The minimum percentage deviation, when it is reached, is stable, it laughs »so that reliable measurements can be taken» as long as it is satisfied ». X / D Minima H, Although the invention has been described with rt-fer ging to its modalities, those who have ordinary experience in the field, when Joan is in danger, can appreciate that changes and modifications can be made. without going beyond the scope or spirit of the invention, such as ^ c, it dosrribe in lea that an t < "Ce" of and the rpivinihrariont'i vindicated. which vaccinate the ont oation. --ru

Claims (7)

    4'a NOVELTY of the INVENTION CLAIMS
  1. l.- A luxury conditioner for use in a tubular tube with internal diameter D, to allow the most accurate measurement of the flow rate of the fluid in the tube; I was told that this was because the flow was wrong because: (a) a device: ont.r «.? turbulence will be placed JO in an upstream tube d < ? a luxury measuring device, in order to reduce turbulence to less than 2"; (b) a» profile device, to be placed on a tubing upstream, < - a greater than approximative distance 0.5D starting dial gauge device; (c a camera is set, between 'the anti-turbulence devices and »profile, comprising an adjustment chamber an elongated and unrestricted passage for the fluid flow, of sufficient- length to uncouple the flow patterns that are emitted by the peep ai of per fil of the eafe-'ctot-, rail , _t > device with ra your bulence, when it flows? the fluid in a tube of water from the turbulence of the device 11 LVO of pejr f 11.
  2. 2. hi flow conditioner according to the rt .-? v indication 1, add to it because the adjustment camera1 pulls a length laughs? approximately 3D. Z - Li conditioner? flow of? compliance with L., the rei indication l, also characterized because the disμi -s i t.? I am referring to approximately nineteen tubes, through which the fluid flows when the device is installed on a pipeline. li, 4.- Li device according to claim 1, also characterized because the profile device Lompreanríe 'a plate with less t s fear ací holes of through holes. os t < Where are the holes in the formation of two centers that were located before the base of a 5 circumference of? a circle, with a center coinciding with a center of i < "- plate, being the center with the plate free of water, passing coughs, b .-- E.1 air conditioner. flow according to claim 4, further characterized in that -u dis ositi or ror? f.r «" "? turbulence »eompr in a group of about nineteen tubes, through which flows? fluid when the device is installed in a pipeline; and the adjustment camera has? a length of apr u; a mada on te J «D. 5
  3. 6. - The conditioner? f luxury in accordance with l a r e i vindicat ion 5, cara a ter ad a cted on? because such a metering device is a plate with onfaces and such a device of pe f i l e.-s to be placed μor what 5 less appropriate ".D from the plate with holes. /.- A luxury cylinder in a tubular duct, with inner diameter D" to allow the most accurate measurement "of? A regimes rie fan of fluid in said tube; characterized said flow conditioner because it comprises: (a ») a device against turbulence; said device comprising a group of? tubes with a lunoilud of approximately 0.2 * D to apr c.-x .. one? da »me-n t. ea Üf-D, and said tubes I have an approximate diameter of 0.2 * 0; being enthusiastic and willing to use it within the. pipe »so that the fluid flowing into the pipe flows through the pipes; > / (b) a profile plate comprising? a body in for ina ele1 disc, rli ensíonado paira to joust inside the tube; the body comprising a plurality of through holes, to allow? e-i f luido qut-f luye »in the pipe pass through? ia profile plate;
  4. 4. J e-n where the "lat a de prar il e''tá installed at a distance of at least apr ox? mada" ment or D co rrent to »r r.? ba of a measuring device. t.- The J I attended 1.1 t.naicior de f luxury of confor- mity with i-, the claim 7, also ac- acted because leat-5 through holes ele .. Ja [iluta rie pe i l are grouped e-p formaciones circulare1, and the through holes of each formation are centered at equal distances over? a site of a circumference dt? a circle with the circle centered j (j over 'a center Li re clt- through holes') of the circle of the circle in the shape of the circle 9. the flow conditioner upf or mirlad with the claim ß, also characterized because it numerate it of f or mate lorii -.- s circular to the ele.'a b. j 3 l - I. to plate of? profile of ceanfor with the claim 9, categorized «idemá; - because the porosity of J plates is approximately 40 to 607 .. 11.- An eiroi irii p t «luxury fiori ui tap for s? r installed a pipe with diameter D erber D for fashion. I j μ μ r J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic ic If it is located downstream, it laughs at a good temperature in the pipeline and 4 > (- rnenlo above di "t ivo one meter disposi T1T» f low, p.ira reduce bule-tur i a- or less laughs J rede-rlor 2''Lcd: ib) IVO disposit rie yl perf to be placed in the pipeline c or ri rp t F-ar iba de-1! Do you have a meter, a distance of at least about one thousand, equal to D, and you laugh? ETBA j or t ivo cont disposi your bulencia, torque-ar t P f low profile de- pseudo- full mind 'develo oped and IT) ais bar e-SPAU latieras aLaroaclas that- is. They spread out between a stream and a low stream. I device against n turbulence and a »face situatela corr1iente1 up» of the profile device, defining laugh? home way a camera laugh fit between? It could be possible against turbulence and profi l s if the length of the separating bars would suffice to allow for the reduction of the size of the. Effects produced in such fluid that flows, by the anti-turbulence device, from the cooling device when the air conditioner is installed? Unitary flow in a pipe will modify the flow properties of the fluids. 12.- L e rio f luxury air conditioner? In accordance with the rei indication 11, the surface is also composed of the pro fi le device comprising a shell body in the shape of a disk and the holes in the disk are grouped in corrugate formations; being the santes of each ¡. formation centered equidistantly on a site of a circumference of a circle, the center being centered in the circle between the center and the center in the form of a distortion of the piai cast 1 trowel of aijuiero pasante 12 ..-- LL flow conditioner according to claim 12, further characterized because? the number of formations »lane Jaros varies laughs _ '• a b. per 111 in accordance with the PIVJ udi caca ón i - ', e ar acte- »p zatcJ aric-more because the porosity of the plate is approximately di1 4 to 6o" / -. K ib.- l-.J arundir i-1 breeder laughs flow conf miriattl Ja car with claim 11, further charac because ias lifting spreader bars have lengths apr t "x mada-iiente of. '' D. 16. - A method to improve the measurement of the fluency rate in a pipe; characterized by said method because it comprises, in order: (a) to deal with the turbulence of the fluid which is coming from approximately 2 or a section of corneal pipe above a measuring device arranged in the pipeline.; (b) allow the fluid with reduced turbulence to? -or stabilize in a camera "-t rle" fit- in the pipe, located upstream laughs? It gives a measure of strength, (e) imposing force on the stabilized fluid to induce a pseudo-total turbulence profile developed in T-J f 3 iiidü; and bl (i) To add the fluid rich liquid regime which has a pseudo-totaimt-turbulent turbulent flow profile, which has been developed 17.- A plate designed to nourish the flow j-, pseudo- tota L I desiirro L laclo in the fluid flowing under conditions of f low turbulent in a pipe of circular cross section, characterized said plate comprising: a body ele circular plate having a center, a caira jo that "ror look pente at the top and one face downstream, said body comprising a plurality of through holes disposed in a plurality of circular formations, extending the hole from the face facing upstream to the face thereof. comment looks down, l'D in an amount suf iciente and with a size sufficient to produce a porosity piara plate (F) ranging from about AO at about c.0%, each formation being laughing through holes centered on a site of a circle ass brought over a hole free r, rail (The body laughs circular plate JE ..-- The plate in accordance with claim 17, also termed side because the plurality of formations compjrende: a central ion form rie pass holes is that they have «5 a porosity (Hi from approximately 7- to approximately
  5. 5. 07., centered on »the" if of a circle with rí? Ame "tro pcd _, rie aprcaximamente '..112b; having the through holes of »said fiarmatrión eJa« ame tr os di, where: l < ? .t - Í G i '- * - a? nor is it the number of trainees who go through the process; a second formation of through holes, centered on the site of a second circle with diameter pcd2; where: ÍO pr.d2 = iiKüi f L 0.4V ?? ~ O, • .0 b * (H P2) _ | 0.4b00 J varying the porosity (P2j of the second formation from »about IV.? to» about 21. X; and being the size laugh here t2 d2 'of the jumpers pass is from the second ib formation, where: Í2 * 100) t-n where n2 is the number of through holes that -or they found the second formation; and a »third formation that has» a capacity (P3): P3 - I 'I - (l-'l i P2) with holes [located on the site of a circle that? has a diameter pcd.;, where; pt.d. L .8a7 ~ 0. OOI i * (3-P2) J Do you get one of the Jos? the third formation has a diameter d'3, so where: d:. = (n -. # 100) where n is the number of holes in the third formation; and pcdl, pcd2, pcr. ', di, d2 and d3 are no i mensa caria 1 es. 10 19.- The plaicat in accordance with the claim 18, characterized further because neither is 3, n2 is 8 and n3 is 1
  6. 6. JO.- The plate »according to claim 17, further characterized in that the plurality of formations i comprises: a formation tt-ntr-tl Element walls that have a porosity (Pl) of approximately .0 to 5 or percent, centered on the site of a circular passage with an approximate diameter of 0.1125; having the through holes of? said , > 0 fo ation diamet os di, where- ': Pt üi - J ° -ß3 (ni * LOO) / nor is the number of "hole-in-the-hole" in training .?4 - a second formation of patsan tees. centered on cal site (Jt? a second circle with diameter pcd2; in do of: pt r .- > max í [.4V "> - 0. 065 * (H3-P2) 1, 0.45 0 >" varying the porosity (H2) of the second formation of approximately IV. ") to approximately 21.0 percent, and SL? nrio t? l size of the hole rí2 rít2 Jo'i¡jas before the second formation; : d2 - [[. (n2 * 100) - / in clone-n2 i-atr- e-i number of through holes in J < =? second formation; and a third formation that has a probability (P3); p, | .t _ ÍP1 + p) c-starido locatl to rados the a »gu eros pass tees on? the sites of two cells; said circles having diameters pcd »and pcrí3._.,. > n where: pt d3. u.9.1 / * [.ib / f «.0? 41 # (P3 - P2) J pcd 3 »= 1. 47 * I O. G57L .-- 0. OO- *. i * (P > P2) I having each one of the through holes in these formations a diameter d '. rice around 0.112; where pcdl, pcd2, ped ^, pcd3__. and say, d2 and d3 are noniminsional numbers. 2J.- The plate in accordance with iai claim 2, characterized also because it is not 3, n2 is ü and there is a total of apr ox matriamesnte thirty / three holes through »third and fourth formations. 22 .-- to platea in accordance with the claim J < J L7, also characterized in that the plurality of f rmations comprises: a central formation of through holes having a porosity (F'l) di? Approximately 3.0 to approximatively b.o "/., centered on the satin of a circle with an approximate diameter o.112b, having the through holes in the diameters fo di, where: Pl til (ni * 100) 10 and not even the ruminant clerk of the trainees who are in training; a second one and a third one at the end of the holes, centered on the dr-a circle sites with diameter pcd2? and pccl2-.3, r speci tive nto; i-n where: «?: D--, O.Bó max Í.L0.4VVO- 0.006b * (P3-P2)" J, 0.4bj S.6 pt.d
  7. 7.jt = 1.22 * maxf fO .49 -0 -006b * (P3 - P2)} , n.45) and Ja sum the porosity (P2) of lau. for mará ones second and tertiary varies from I * ', or to 21.?, approximately; and such a hole size of 100% > through holes of the second and third formations d_r, is approximately 0.112; and a fourth formation that has * a porosity (P3): PJ ~ - PT - (P1 + P2) There are three passages located on the site, of a circle that has a diameter, where:?;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; . ' ? n3 * 100) tpi where n3 is the number of trainees in the third class; and where pcdl, pcd2, pcd2-.B, per-, di, d2 and d are non-dimensional numbers. -; > The Lat is in conformity with the rcai vindi caition 22, also characterized because "ni is 3, n2 is 16 and n3 is 16. 24.- The plate in accordance with claim 17, also characterized because-? the plurality of formations comprises: a central formation of through holes having a porosity (Pl) of? 3.0 to 15.0%, approximately. centered tn / on the site of a circle that has a diameter of approximately 1.125; having the through holes of said Tormaci? diameters di, where: i ríl (nt * i00) and it is not the number of past trades in The formation; a second and a third formation of through holes, centered on the circles sites with diameters pcd2a. and pcd aB, respectively, where: pct I2 --- 0. l "<6 * max C I. or .4990-- ..> 06f« * (P3 ~ P2) I, .4b) / pcd22! = 1.22 * max CI or .4990 -0.0O65 * (P - P2) 3, 0.453 and the former porosidaid (P2) of the second and third formations varies from approximately 19. Approximately 21.0 percent; and the size of the hole in the second-and third-third formations is "approximately .1 J 2; and < uar a y fifths. i-piac i onos that have total porosity uriai (P3): P3 --- r - (Pl + • P2) bu - t.on holes through centraxcios on the sites of? two-circles; said circles having diameters prd. 'j and pcd3 -, _., where: μccl - •). VI / * f. . B 575- -. 041 * (P3-P2)} d 1. I heard 7 * L .0575 - .0O41 * (P 3 -P2) I We have one or two holes from the fourth and fifth formations with an approximate diameter of o.112: e »n where W pcrl, pcd2, pjcrl2.,;,? Rd3-, ptrí3: _. and dJ are numbers do not dimension it. 2b. - Lu pJatcat in accordance with claim 21, characterized arictically? because neither is 3, n2 eas 16 and n 3 ta 1. b < - > FLOW CONDITIONER FOR MORE ACCURATE MEASUREMENT OF A FLUID OF FLUID SUMMARY OF THE DESCRIPTION A flow conditioner for use in pipelines to isolate a measuring device from the induced alteration effects in the pipeline, allowing the rate to flow more accurately to fluid fluids flowing in the pipes . The device comprises several sections: a device against turbulence, a camera adjustment and a l? profile device. The three sections are installed r-n a tube-nat at a predetermined distance upstream of a measuring device, and at a minimum distance determined at the bottom, laughs? an alteration dt-pipe. In the pipe, the anti-turbulence device is more 15 remote, upstream, followed by an adjustment chamber of a specified length which, in turn, is followed by the device's profile. The anti-turbulence device eliminates its turbulence tt1, the adjustment chamber 1 minimizes the interaction between the anti-turbulence device and the profile device. The profile plate produces a turbulent, pseudo-fully developed structure and a velocity profile so that there is a minimum deviation of the empirical discharge coefficient or the calibration factor of the meter, as or for short periods such as for long stretches of pipe. Ba or certain c rrune > tanc? Thus, it is possible to use profile plates of unique construction, without anti-turbulence devices.
MXPA/A/1995/000720A 1994-01-31 1995-01-30 Flow conditioner for more precise flu measurement MXPA95000720A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08189100 1994-01-31
US08/189,100 US5495872A (en) 1994-01-31 1994-01-31 Flow conditioner for more accurate measurement of fluid flow

Publications (2)

Publication Number Publication Date
MX9500720A MX9500720A (en) 1998-07-31
MXPA95000720A true MXPA95000720A (en) 1998-11-09

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