CN205049189U - Online accurate measuring device of fluid flow - Google Patents
Online accurate measuring device of fluid flow Download PDFInfo
- Publication number
- CN205049189U CN205049189U CN201520860613.2U CN201520860613U CN205049189U CN 205049189 U CN205049189 U CN 205049189U CN 201520860613 U CN201520860613 U CN 201520860613U CN 205049189 U CN205049189 U CN 205049189U
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- fluid flow
- measuring tube
- measuring
- multifunction board
- pipe
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Abstract
The utility model discloses an online accurate measuring device of fluid flow relates to the measurement of fluid flow technique, is to constitute by left flange, right flange, survey buret, multifunction board and temperature detection and signal transmission device, its left flange and right flange between through surveying the fixed intercommunication of buret, survey that the multifunction board is being fixed to the front portion in the buret, the back is deployed has V type cone assembly, the outside of surveying buret is feeding through two and is drawing and press the pipe, two are drawn three valvess of tip and same plane of pressing the pipe and feed through, are equipped with the multi -parameter changer on three valvess of same plane. The utility model discloses an online accurate measuring device of fluid flow, has that the signal is stable, the pressure loss is little and installs required straight tube section advantage such as short at simple structure, has the intrinsic characteristics of all differential pressure flowmeter. Have safe, the accurate online precision measurement of fluid flow technique, solve the fluid metering problem that pulsating flow and heterogeneous attitude change, widen effective range and compare, also be applicable to the precision measurement of other medium flows.
Description
Technical field
The utility model relates to fluid flux measurement technology, particularly relates to the online device for accurately measuring of a kind of fluid flow.
Background technology
Oil field carbon dioxide flooding flow measurement instrument many employings differential pressure flowmeter, and preferred V-type cone flow meter, this flow instrument is only applicable to the measurement of single phase and narrow range ability fluid, when pipeline internal medium phase changes, can not Measurement accuracy.And oil field carbon dioxide flooding flow is just the shooting flow medium of Pulsating Flow and phase mutability.It is little and install the advantages such as required straight length is short that V-type cone flow meter has signal stabilization, crushing, belong to the category of differential pressure flowmeter, have all differential pressure flowmeter inherent characteristicses: namely measured medium flow is directly proportional to the square root of differential pressure value, therefore, useful range is than narrow.Instrument calibration department of country only provides Calibration Report to differential pressure flowmeter (containing V-type cone flow meter) in 1:3 range ability; The fluctuations in discharge rangeability of ISO5167 standard also regulation differential pressure flowmeter separate unit instrument is generally 1:3, must not, more than 1:4, when fluctuations in discharge rangeability exceedes regulation, the instrument of the different range of multiple stage can be adopted to carry out section metering.
Existing V-type cone flow meter and other differential pressure flowmeter only provide an efflux coefficient after calibration, and use this fixing efflux coefficient to carry out flow rate calculation, outrange far beyond stated accuracy, can not realize the accurate-metering of the medium of the metering of wide-range scope and multi phase state change than error in dipping after scope.The CO 2 medium metering variable for phase fluctuations, range ability is large, two flowmeter parallel connections can only be taked, and in instrument front end, rectifier and filter process fluid pulsation are installed, then carry out switching the flowmeter selected wherein according to the change of phase and flow, its shortcoming is: a whole set of measuring apparatus is huge, and disclosure risk point is many, particularly high pressure measurement, add potential safety hazard and manufacturing cost, while causing space waste, frozen block, knot dry ice also easily occur.
Utility model content
The purpose of this utility model is to overcome the defect existed in prior art, there is provided one can safely, the online accurate measuring technique of fluid flow accurately, particularly adapt to online flow measurement device and the method for oil field carbon dioxide flooding operating mode phase-state change, solve the fluid metering problem of Pulsating Flow and multi phase state change, widen useful range ratio; Also the online device for accurately measuring of a kind of fluid flow of other rate-of flow is applicable to.
The online device for accurately measuring of a kind of fluid flow of the present utility model, by left flange, right flange, measuring tube, multifunction board and temperature sensor are formed, left flange described in it is fixedly communicated with by measuring tube with between right flange, in measuring tube, front portion is fixed wtih multifunction board, rear portion is equipped with V-type cone assembly, the ft connection of measuring tube two pressure guiding pipes, the end of two pressure guiding pipes is communicated with copline three valve group, copline three valve group is provided with multiparameter transmitter, multiparameter transmitter is connected with the temperature sensor scheme in measuring tube, described measuring tube front outsides is provided with blow-off pipe.
As further improvement of the utility model, described multifunction board is that a center hole and multiple ring arc via hole piling circular arrangement are formed.
As further improvement of the utility model, blow-off pipe is provided with blowoff valve.
As further improvement of the utility model, two pressure guiding pipes buret upper vertical of testing oneself is drawn.
As further improvement of the utility model, the V-type cone assembly in measuring tube is provided with the safety support support preventing impacting with high pressure from departing from.
As further improvement of the utility model, blow-off pipe is placed in multifunction board front end and is 30 ° ~ 60 ° with the angle at measuring tube rear portion.
The online device for accurately measuring of a kind of fluid flow of the present utility model, structure is simple, have signal stabilization, crushing is little and install the advantages such as required straight length is short, belong to the category of differential pressure flowmeter, there is all differential pressure flowmeter inherent characteristicses: namely measured medium flow is directly proportional to the square root of differential pressure value.There is safety, the accurately online accurate measuring technique of fluid flow, particularly adapt to online flow measurement device and the method for oil field carbon dioxide flooding operating mode phase-state change, solve the fluid metering problem of Pulsating Flow and multi phase state change, widen useful range ratio; Also the accurate measurement of other rate-of flow is applicable to.Volume is little, and disclosure risk point is few, particularly high pressure measurement, adds security performance, simultaneously low cost of manufacture, floor area conserve space, and frozen block and knot dry ice not easily occur.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model multifunction board structural representation.
Embodiment
Below in conjunction with accompanying drawing 1 and accompanying drawing 2 to the online device for accurately measuring of a kind of fluid flow of the present utility model, be described further.
Embodiment 1
The online device for accurately measuring of a kind of fluid flow of the present utility model, by left flange 1, right flange 2, measuring tube 3, multifunction board 4 and temperature sensor 5 are formed, left flange 1 described in it is fixedly communicated with by measuring tube 3 with between right flange 2, in measuring tube 3, front portion is fixed wtih multifunction board 4, rear portion is equipped with V-type cone assembly 6, the ft connection of measuring tube 3 two pressure guiding pipes 7, the end of two pressure guiding pipes 7 is communicated with copline three valve group 8, copline three valve group 8 is provided with multiparameter transmitter 9, multiparameter transmitter 9 and temperature sensor 5 connection in measuring tube 3, described temperature sensor 5 is placed in protection tube 15, one end of protection tube 15 is placed in measuring tube 3, described measuring tube 3 front outsides is provided with blow-off pipe 11.
Embodiment 2
The online device for accurately measuring of a kind of fluid flow of the present utility model, by left flange 1, right flange 2, measuring tube 3, multifunction board 4 and temperature sensor 5 are formed, left flange 1 described in it is fixedly communicated with by measuring tube 3 with between right flange 2, in measuring tube 3, front portion is fixed wtih multifunction board 4, rear portion is equipped with V-type cone assembly 6, the ft connection of measuring tube 3 two pressure guiding pipes 7, the end of two pressure guiding pipes 7 is communicated with copline three valve group 8, copline three valve group 8 is provided with multiparameter transmitter 9, multiparameter transmitter 9 and temperature sensor 5 connection in measuring tube 3, measuring tube 3 front outsides is provided with blow-off pipe 11.Multifunction board 4 is that a center hole 13 and multiple ring arc via hole 14 piling circular arrangement are formed; Blow-off pipe 11 is provided with blowoff valve 12.
Embodiment 3
The online device for accurately measuring of a kind of fluid flow of the present utility model, by left flange 1, right flange 2, measuring tube 3, multifunction board 4 and temperature sensor 5 are formed, left flange 1 described in it is fixedly communicated with by measuring tube 3 with between right flange 2, in measuring tube 3, front portion is fixed wtih multifunction board 4, rear portion is equipped with V-type cone assembly 6, the ft connection of measuring tube 3 two pressure guiding pipes 7, the end of two pressure guiding pipes 7 is communicated with copline three valve group 8, copline three valve group 8 is provided with multiparameter transmitter 9, multiparameter transmitter 9 and temperature sensor 5 connection in measuring tube 3, measuring tube 3 front outsides is provided with blow-off pipe 11.Two pressure guiding pipes 7 buret 3 upper vertical of testing oneself is drawn; V-type cone assembly 6 in measuring tube 3 is provided with the safety support support preventing impacting with high pressure from departing from; Blow-off pipe 11 is placed in multifunction board 4 front end and is 30 ° ~ 60 ° with the angle at measuring tube 3 rear portion.
As shown in Figure 1, the online device for accurately measuring of a kind of fluid flow of the present utility model, right flange 5, V-type cone assembly 6, pressure guiding pipe 7, copline three valve group 8, multiparameter transmitter 9, safety support support, temperature sensor signal line, measuring tube 3 form.V-type cone assembly 6 be fixedly connected with safety support support by connecting link by V-type cone, the tail end of V-type cone is fixedly connected with connecting link, safety support support and measuring tube 3 inwall are fixed, this part realizes the input of fluid on-line measurement, collection, process and calculation function, this partial design has V-type cone and installs safety support support, avoids the risk that in high pressure measurement, V-type cone comes off; Adopt multiparameter transmitter to detect signal in conjunction with temperature sensor in design, gather, process and computing, replace traditional differential pressure transmitter, pressure unit and temperature transmitter and the repertoire of flow integrator, decrease the quantity of input, collection and arithmetic unit, reduce operation expense, increase global reliability, stability; When detected fluid flows through V-type cone, pressure reduction will be produced before and after V-type cone, multiparameter transmitter gathers this pressure difference signal, gathers pressure signal by after temperature sensor signal co-treatment simultaneously, calculate according to computing method of the present utility model, process, show and output stream value, complete multi phase state flow on-line measurement function.
The online device for accurately measuring of a kind of fluid flow of the present utility model; pressure guiding pipe 7 is drawn from the upper vertical of measuring tube 3; its height should be suitable, short as far as possible have the prerequisite of enough space for maintenances after the protection of guaranteed flow meter cold insulation under, undergoes phase transition in pressure guiding pipe to avoid carbon dioxide.The employing of pressure guiding pipe 7 upper end is movable threaded to be connected with copline three valve group 8, and copline three valve group 8 takes bolt to be connected with multiparameter transmitter 9; Temperature sensor 5 lower end closed is also welded on the measuring tube 3 in V-type cone assembly 6 downstream; V-type cone, pressure guiding pipe 7 lower end, safety support support, measuring tube 3 connected mode are in the drawings welding.During installation group pair, safety support support and pressure guiding pipe 7 keeping parallelism.
Multifunction board 4 is arranged in the upper reaches end of V-type cone assembly 6 in measuring tube 3 inner chamber by welding manner; Its effect is: carry out rectification and filtration to detected fluid, process detects because of fluid pulsation and impurity the interference and impact that cause on rear signal, slow down high-velocity fluid to the impact of rear portion V-type cone assembly 6 and the stability ensureing pressure and differential pressure signal, reduce the quantity of link and potential leakage point simultaneously.Measured fluid measuring tube 3 inner chamber through multifunction board 4 time, part pulsating fluid passes through multifunction board, stop by multifunction board 4 returns by part Pulsating Flow, and the flow forward effect that the fluid returned is subject to pulsating fluid flows through V-type cone by forming turbulent flow after multifunction board 4 jointly.The further multifunction board 4 of optimal design, its thickness is D/8 and is less than 100mm, and it is made up of a center hole and multiple ring arc via hole piling circular arrangement, and the quantity of via hole, size and arrangement mode meet following requirement:
1, number of vias: the first, in multifunction board in the heart, arrange that 1 diameter is the circular hole of (D-d)/2 ± 0.1; The second, with multifunction board center for the center of circle, with [2n (D-d)-(0.1D-2) n] ± 0.1 be diameter concentric circles (hereinafter referred to as ⊙ Ln) on, ringwise on average arrange 2n ring arc via hole; Three, above-mentioned ring arc number of vias should be covered with whole multifunction board, until [(2n+1) (D-d)-(0.1D-2) n] >D.
2, the width of ring arc via hole: (D-d)/2 ± 0.1.
3, ring arc length degree determination mode is as follows: the first, on ⊙ Ln, and mean allocation 6n diameter is the circle (hereinafter referred to as ⊙ sn) of (D-d)/2 ± 0.1 ringwise, with multifunction board center for the center of circle, does 2 public circle of contacts of ⊙ sn; The second, on same ⊙ Ln, by adjacent three ⊙ sn, take common tangent as border, deduction center section forms ring arc via hole.
Wherein: D is warp in measuring tube, d is V-type extrapyramidal, and n is the concentric circles quantity centered by round dot, and n presses natural number incremental order value from 1, i.e. n=1,2 ... n, above-mentioned unit is mm.
The utility model adopts multiparameter transmitter 9 replace multiple component function such as traditional differential pressure transmitter, pressure unit and temperature transmitter and flow integrator etc. and add data base querying and intelligent judgment function, decrease the quantity of input, collection and arithmetic unit, reduce operation expense, increase global reliability, stability.There is the measurement function of differential pressure and pressure detection and temperature signal, and there is display, computing, data base querying and intelligent judgment function simultaneously.
V-type cone assembly 6 is welded on measuring tube 3 inner chamber postmedian by fixed mount, and the center line of cone overlaps with measuring tube 3 center line, avoids high-pressure fluid impact V-type cone assembly 6 to cause and comes off.
The mounting means of temperature sensor 5 is: in the dirty portion of V-type cone assembly 6; the metal temperature protection pipe of a lower end closed is welded perpendicular to measuring tube 3; the blind end inwall of metal temperature protection pipe is in measuring tube lumen centers; temperature detection part is installed in metal temperature protection pipe; temperature detection signal line is connected in multiparameter transmitter 9; described blowoff valve 12 is connected to measuring tube 3 by blow-off pipe 11 fillet welding at 45 ° of measuring tube 3 bottom, and described flange and pressure guiding pipe 7 adopt and be welded and fixed.
Copline three valve group 8 bottom connects two pressure guiding pipes 7 by movable whorl, (two above-mentioned pressure guiding pipes 7 are respectively positive pressure guiding pipe and negative pressure guiding pipe), top adopts bolt to be connected with multiparameter transmitter 9, is vertically welded in measuring tube 3 top after integrated connection by pressure guiding pipe 7.Pressure guiding pipe 7 bottom is drawn from measuring tube 3 upper vertical and is welded and fixed, two pressure guiding pipes 7 are positioned at the both sides, front and back of V-type cone at measuring tube 3 exit place, its height should be suitable, short as far as possible have the prerequisite of enough space for maintenances after guaranteed flow meter insulation cold insulation under, undergo phase transition in pressure guiding pipe 7 to avoid carbon dioxide.
Claims (6)
1. the online device for accurately measuring of fluid flow, by left flange (1), right flange (2), measuring tube (3), multifunction board (4) and temperature sensor (5) are formed, it is characterized in that described left flange (1) is fixedly communicated with by measuring tube (3) with between right flange (2), measuring tube (3) interior front portion is fixed wtih multifunction board (4), rear portion is equipped with V-type cone assembly (6), the ft connection of measuring tube (3) two pressure guiding pipes (7), the end of two pressure guiding pipes (7) is communicated with copline three valve group (8), copline three valve group (8) is provided with multiparameter transmitter (9), multiparameter transmitter (9) and temperature sensor (5) connection in measuring tube (3), described measuring tube (3) front outsides connects blow-off pipe (11).
2. the online device for accurately measuring of a kind of fluid flow as claimed in claim 1, is characterized in that described multifunction board (4) is that a center hole (13) and multiple ring arc via hole (14) piling circular arrangement are formed.
3. the online device for accurately measuring of a kind of fluid flow as claimed in claim 1 or 2, is characterized in that blow-off pipe (11) is provided with blowoff valve (12).
4. the online device for accurately measuring of a kind of fluid flow as claimed in claim 1 or 2, it is characterized in that two pressure guiding pipes (7) test oneself buret (3) upper vertical draw.
5. the online device for accurately measuring of a kind of fluid flow as claimed in claim 1 or 2, is characterized in that the V-type cone assembly (6) in measuring tube (3) is provided with the safety support support preventing impacting with high pressure from departing from.
6. the online device for accurately measuring of a kind of fluid flow as claimed in claim 1 or 2, is characterized in that blow-off pipe (11) is placed in multifunction board (4) front end and is 30 ° ~ 60 ° with the angle at measuring tube (3) rear portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520860613.2U CN205049189U (en) | 2015-11-02 | 2015-11-02 | Online accurate measuring device of fluid flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520860613.2U CN205049189U (en) | 2015-11-02 | 2015-11-02 | Online accurate measuring device of fluid flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205049189U true CN205049189U (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520860613.2U Expired - Fee Related CN205049189U (en) | 2015-11-02 | 2015-11-02 | Online accurate measuring device of fluid flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205049189U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181037A (en) * | 2015-11-02 | 2015-12-23 | 陈惺 | Online accurate measuring device and online accurate measuring method for fluid flow |
| CN109253835A (en) * | 2018-08-31 | 2019-01-22 | 中国船舶重工集团公司第七〇五研究所 | A kind of linear array environmental pressure device for accurately measuring and method |
-
2015
- 2015-11-02 CN CN201520860613.2U patent/CN205049189U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181037A (en) * | 2015-11-02 | 2015-12-23 | 陈惺 | Online accurate measuring device and online accurate measuring method for fluid flow |
| CN109253835A (en) * | 2018-08-31 | 2019-01-22 | 中国船舶重工集团公司第七〇五研究所 | A kind of linear array environmental pressure device for accurately measuring and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20161102 |