CN106123974A - Multiinjector balance flow meter - Google Patents
Multiinjector balance flow meter Download PDFInfo
- Publication number
- CN106123974A CN106123974A CN201610445199.8A CN201610445199A CN106123974A CN 106123974 A CN106123974 A CN 106123974A CN 201610445199 A CN201610445199 A CN 201610445199A CN 106123974 A CN106123974 A CN 106123974A
- Authority
- CN
- China
- Prior art keywords
- connecting tube
- plate body
- orifice plate
- packing
- air flue
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
- G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
- G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
- G01F1/40—Details of construction of the flow constriction devices
- G01F1/42—Orifices or nozzles
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses multiinjector balance flow meter, including connecting tube, straight length, sensor, two packing circles and two pressure pipes, two connecting tubes are linked into an integrated entity by bolt, the connecting tube other end is logical to be connected with straight length, the end face of two connecting tubes is provided with packing circle, orifice plate plate body is arranged between two packing circles, multiple nozzle is had on orifice plate plate body, have and the air flue connected inside connecting tube in packing circle side, pressure pipe one end connects with air flue, the pressure pipe other end connects with sensor, packing circle opposite side inwall has and the dashpot connected inside connecting tube, nozzle is flowed to the section of reducing successively decreased by the internal diameter being sequentially connected with along fluid, the expanding reach that flat segments and internal diameter flow to be incremented by along fluid is constituted.Between connecting tube and connecting tube, between connecting tube and straight length, all use Flange joint, substantially increase connecting tube practicality during different types of sensor measurement, facilitate staff's Fast Installation to dismantle.
Description
Technical field
The present invention relates to field of flow measurement, specifically refer to multiinjector balance flow meter.
Background technology
Differential pressure flowmeter with its technology maturation, simple in construction, reliable and stable, use the feature of face width to occupy effusion meter and make
Use prostatitis.Differential pressure flowmeter is according to being installed on differential pressure, known fluid condition and the inspection that in pipeline, flow detection part produces
The physical dimension surveying part and pipeline measures the instrument of flow；But, the measurement range ability of this differential pressure flowmeter is narrower,
Because flow instrument signal (differential pressure), in chi square function relation, thus limits the range ability of flow measurement.At present, spray
The most frequently used form of nozzle of mouth effusion meter has calibrating nozzle, Long Nozzle, Venturi nozzle etc., and these throttling forms generally exist
Following shortcoming: the repeatability of measurement, degree of accuracy mean level in effusion meter, owing to many factor impacts are intricate, essence
Degree is difficult to improve；In-site installation condition requires higher, needs longer straight length, it is difficult to meeting, the pressure loss is bigger.
Summary of the invention
It is an object of the invention to provide multiinjector balance flow meter, improve the scope of fluid measurement, extend effusion meter
Service life.
The purpose of the present invention is achieved through the following technical solutions:
Multiinjector balance flow meter, including flanged (FLGD) connecting tube, straight length, sensor, two packing circles and two pressures
Pipe, one end end by bolts that two flanged (FLGD) described connecting tubes are adjacent links into an integrated entity, and the connecting tube other end passes through flange
Dish is connected with straight length, is respectively arranged with packing circle on the end face that two described connecting tubes are oppositely arranged, and orifice plate plate body is arranged
Between two packing circles, orifice plate plate body has multiple nozzle, and have in packing circle side and connect inside connecting tube
Air flue, pressure pipe one end connects with air flue, and the pressure pipe other end connects with sensor, packing circle opposite side inwall on have with
The dashpot of the internal connection of connecting tube, and two dashpots and two air flues corresponding and be symmetrically distributed in the two of orifice plate plate body
Side；The section of reducing, flat segments and internal diameter that described nozzle is flowed to successively decrease along fluid by the internal diameter being sequentially connected with flow to pass along fluid
The expanding reach increased is constituted, and is provided with stereotype layer on described air flue inwall.
When the present invention uses, fluid is entered in connecting tube by straight length, and the multiple nozzles on orifice plate plate enter into
In another connecting tube, and now a fluid stream forms local contraction on front side of orifice plate plate body, and then the flow velocity of fluid is increased, quiet
Pressure reduces, and i.e. creates pressure reduction between the front side and rear side of orifice plate plate body, and fluid flow is the biggest, and the pressure reduction of generation is the biggest,
Now sensor is by pressure pipe and air flue to the measurement of pressure at both sides before and after orifice plate plate body, can calculate the flow of fluid
Size.Wherein, the section of reducing that multiple nozzles orifice plate plate body arranged are flowed to successively decrease along fluid by the internal diameter being sequentially connected with, flat
The expanding reach that straight section and internal diameter flow to be incremented by along fluid is constituted, and fluid in nozzle interior by accelerating, at the uniform velocity and slow down
After three kinestates, now tend to balance in the flow field before and after orifice plate plate body, it is to avoid before and after orifice plate plate body, both sides eddy current occur, shake
Move and signal noise, substantially increase the stability in flow field；And between connecting tube and connecting tube, between connecting tube and straight length
All use Flange joint, substantially increase connecting tube practicality during different types of sensor measurement, convenient work
Personnel's Fast Installation is dismantled.And be opened in the dashpot in packing circle sidewall and can will impact before and after orifice plate plate body on both sides
Fluid guides and opens, and before and after reduction orifice plate plate body, the impact dynamics on the end face of both sides, reduces on the section of reducing and the expanding reach of nozzle
The wadding stream shearing force being subject to, it is achieved extend the purpose in orifice plate plate body service life.
Wherein, the fluid high-speed motion in air flue, produce friction with air flue inwall simultaneously and grow a large amount of noise, noise leads to
Crossing packing circle to pass out, significantly impact measurement environment, the present invention arranges stereotype layer on air flue inwall, utilizes stereotype densification
Outer wall weakens the transmission acoustic energy that fluid produces in air flue, to prevent substantial amounts of noise from outwards transmitting, is avoided that again stream simultaneously
The kinetic energy loss of body, to ensure the accuracy of the force value collected in the sensor.
Multiple rounded arrays of described nozzle and dividing equally on orifice plate plate body.Equally distributed multiple nozzle can reduce orifice plate
The wadding that plate body is directly subject to flows shearing force and forms the probability of eddy current, reduces dynamic loss of energy, is realizing protection orifice plate
While plate body, it is achieved that energy-conservation purpose.
The junction of end, described orifice plate plate body two ends with packing circle is provided with the L-type sealing gasket for sealing.For side
Just connecting tube application between different types of sensor, orifice plate plate body is clamped in by the cooperation of bolt and packing circle
Between two connecting tubes, utilize the sealing gasket of L-type the part of packing circle contact respectively on the two ends of orifice plate plate body to be carried out simultaneously
Seal, it is achieved fully sealing in connecting tube, it is ensured that two pressure pipes in air flue in the data that collect accurate.
The present invention compared with prior art, has such advantages as and beneficial effect:
The fluid impacted before and after orifice plate plate body on both sides can be drawn by the dashpot during 1, the present invention is opened in packing circle sidewall
Lead out, the impact dynamics on the end face of both sides before and after reduction orifice plate plate body, the section of reducing of reduction nozzle and expanding reach are subject to
Wadding stream shearing force, it is achieved extend the purpose in orifice plate plate body service life；
2, the equally distributed multiple nozzles of the present invention can reduce wadding stream shearing force and the formation eddy current that orifice plate plate body is directly subject to
Probability, reduce dynamic loss of energy, realize protection orifice plate plate body while, it is achieved that energy-conservation purpose；
3, the present invention passes through bolt and packing for convenience of connecting tube application between different types of sensor, orifice plate plate body
The cooperation of circle is clamped between two connecting tubes, utilizes the sealing gasket of L-type will to insulate respectively on the two ends of orifice plate plate body simultaneously
The part of circle contact seals, it is achieved fully sealing in connecting tube, it is ensured that two pressure pipes in air flue in collect
Data are accurate.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes of the application
Point, it is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is present configuration schematic diagram.
Labelling and corresponding parts title in accompanying drawing:
1-connecting tube, 2-bolt, 3-orifice plate plate body, 4-air flue, 5-induction apparatus, 6-pressure pipe, 7-sealing gasket, 8-packing circle, 9-
Dashpot, 10-ring flange, 11-straight length.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, to this
Invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
As it is shown in figure 1, the present embodiment includes flanged (FLGD) connecting tube 1, straight length 11, sensor, two packing circles 8 and two
Pressure pipe 6, one end end by bolts 2 that two flanged (FLGD) described connecting tubes 1 are adjacent links into an integrated entity, connecting tube 1 other end
It is connected with straight length 11 by ring flange 10, the end face that two described connecting tubes 1 are oppositely arranged is respectively arranged with packing circle
8, orifice plate plate body 3 is arranged between two packing circles 8, orifice plate plate body 3 has multiple nozzle, and has in packing circle 8 sides
The air flue 4 that connect internal with connecting tube 1, pressure pipe 6 one end connects with air flue 4, and pressure pipe 6 other end connects with sensor,
Have on packing circle 8 opposite side inwalls and the internal dashpot 9 connected of connecting tube 1, and two dashpots 9 and two air flue 4 phases
Corresponding and be symmetrically distributed in the both sides of orifice plate plate body 3；Described nozzle by the internal diameter being sequentially connected with along fluid flow to successively decrease reduce
The expanding reach that section, flat segments and internal diameter flow to be incremented by along fluid is constituted, and is provided with stereotype layer on described air flue 4 inwall.
When the present invention uses, fluid is entered in connecting tube 1 by straight length 11, and the multiple nozzles on orifice plate plate enter
In another connecting tube 1, and now a fluid stream forms local contraction on front side of orifice plate plate body 3, and then the flow velocity of fluid is increased
Adding, static pressure reduces, and i.e. creates pressure reduction between the front side and rear side of orifice plate plate body 3, and fluid flow is the biggest, the pressure reduction of generation
The biggest, now sensor measurement to orifice plate plate body 3 pressure at both sides front and back by pressure pipe 6 and air flue 4, can calculate stream
The uninterrupted of body.Wherein, multiple nozzles orifice plate plate body 3 arranged are successively decreased along the fluid flow direction by the internal diameter being sequentially connected with
The expanding reach that the section of reducing, flat segments and internal diameter flow to be incremented by along fluid is constituted, and fluid passes through to accelerate, at the uniform velocity in nozzle interior
And after three kinestates that slow down, now tend to balance in the flow field before and after orifice plate plate body 3, it is to avoid both sides before and after orifice plate plate body 3
Eddy current, vibration and signal noise occur, substantially increases the stability in flow field；And between connecting tube 1 with connecting tube 1, be connected
All use Flange joint between pipe 1 and straight length 11, substantially increase connecting tube 1 during different types of sensor measurement
Practicality, facilitate staff's Fast Installation to dismantle.And the dashpot 9 being opened in packing circle 8 sidewalls can will impact
Before and after orifice plate plate body 3, the fluid on both sides guides and opens, and reduces the impact dynamics on orifice plate plate body 3 both sides end face front and back, reduces spray
The wadding stream shearing force being subject in the section of reducing of mouth and expanding reach, it is achieved extend the purpose in orifice plate plate body 3 service life.
Wherein, the fluid high-speed motion in air flue 4, produce friction with air flue 4 inwall simultaneously and grow a large amount of noise, noise
Being passed out by packing circle 8, significantly impact measurement environment, the present invention arranges stereotype layer on air flue 4 inwall, utilizes stereotype to cause
Close outer wall weakens the transmission acoustic energy that fluid produces in air flue 4, to prevent substantial amounts of noise from outwards transmitting, can keep away again simultaneously
Exempt from the kinetic energy loss of fluid, to ensure the accuracy of the force value collected in sensor 5.
In the present embodiment, multiple rounded arrays of described nozzle and dividing equally on orifice plate plate body 3.Equally distributed multiple spray
Mouth can reduce the wadding stream shearing force that orifice plate plate body 3 is directly subject to and the probability forming eddy current, reduces dynamic loss of energy,
While realizing protection orifice plate plate body 3, it is achieved that energy-conservation purpose.
The junction of end, described orifice plate plate body 3 two ends with packing circle 8 is provided with the L-type sealing gasket 7 for sealing.For
Facilitating the connecting tube 1 application between different types of sensor, orifice plate plate body 3 is by bolt 2 and the cooperation quilt of packing circle 8
It is clamped between two connecting tubes 1, utilizes the sealing gasket 7 of L-type by packing circle 8 contact respectively on the two ends of orifice plate plate body 3 simultaneously
Part seal, it is achieved fully sealing in connecting tube 1, it is ensured that two pressure pipes 6 in air flue 4 in the data that collect
Accurately.
Above-described detailed description of the invention, has been carried out the purpose of the present invention, technical scheme and beneficial effect further
Describe in detail, be it should be understood that the detailed description of the invention that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, all should comprise
Within protection scope of the present invention.
Claims (3)
1. multiinjector balance flow meter, including flanged (FLGD) connecting tube (1), straight length (11), sensor (10), two packing circles
And two pressure pipes (6) (8), it is characterised in that: one end end by bolts that two flanged (FLGD) described connecting tubes (1) are adjacent
(2) linking into an integrated entity, connecting tube (1) other end is connected with straight length (11), two described connecting tubes by ring flange (10)
(1) being respectively arranged with packing circle (8) on the end face being oppositely arranged, orifice plate plate body (3) is arranged between two packings circle (8), hole
Have multiple nozzle on plate plate body (3), and have the air flue (4) that connect internal with connecting tube (1) in packing circle (8) side, take
Pressure pipe (6) one end connects with air flue (4), and pressure pipe (6) other end connects with sensor (10), in packing circle (8) opposite side
Have the dashpot (9) that connect internal with connecting tube (1) on wall, and two dashpots (9) are corresponding and right with two air flues (4)
Claim the both sides being distributed in orifice plate plate body (3)；Described nozzle is flowed to the section of reducing, straight successively decreased by the internal diameter being sequentially connected with along fluid
The expanding reach that section and internal diameter flow to be incremented by along fluid is constituted, and is provided with stereotype layer on described air flue (4) inwall.
Multiinjector balance flow meter the most according to claim 1, it is characterised in that: multiple rounded arrays of described nozzle and
Divide equally on orifice plate plate body (3).
Multiinjector balance flow meter the most according to claim 1, it is characterised in that: at described orifice plate plate body (3) two ends end
Portion is provided with the L-type sealing gasket (7) for sealing with the junction of packing circle (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610445199.8A CN106123974A (en) | 2016-06-21 | 2016-06-21 | Multiinjector balance flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610445199.8A CN106123974A (en) | 2016-06-21 | 2016-06-21 | Multiinjector balance flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106123974A true CN106123974A (en) | 2016-11-16 |
Family
ID=57470247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610445199.8A Pending CN106123974A (en) | 2016-06-21 | 2016-06-21 | Multiinjector balance flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106123974A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806913A (en) * | 2017-10-30 | 2018-03-16 | 成都瞬科仪器仪表有限公司 | Gas pipeline plurality of nozzle-type flow measuring probe |
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|---|---|---|---|---|
| US20040016302A1 (en) * | 2002-07-24 | 2004-01-29 | Boaz Misholi | Respiratory flow sensor |
| CN201034650Y (en) * | 2007-04-20 | 2008-03-12 | 项家从 | Semi-ring voltage equalizing type ring casing pressure sampling stephanoporate shaped hole plate flow rate sensor |
| CN103674128A (en) * | 2012-08-28 | 2014-03-26 | 霍尼韦尔国际公司 | Flow sensor with multi-position laminar flow element having integrated bypass channels |
| CN204575146U (en) * | 2015-04-28 | 2015-08-19 | 江苏华海测控技术有限公司 | Integration welded type ring casing pressure orifice plate |
| CN105526980A (en) * | 2016-01-15 | 2016-04-27 | 江苏华海测控技术有限公司 | Multi-nozzle balance flowmeter |
-
2016
- 2016-06-21 CN CN201610445199.8A patent/CN106123974A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040016302A1 (en) * | 2002-07-24 | 2004-01-29 | Boaz Misholi | Respiratory flow sensor |
| CN201034650Y (en) * | 2007-04-20 | 2008-03-12 | 项家从 | Semi-ring voltage equalizing type ring casing pressure sampling stephanoporate shaped hole plate flow rate sensor |
| CN103674128A (en) * | 2012-08-28 | 2014-03-26 | 霍尼韦尔国际公司 | Flow sensor with multi-position laminar flow element having integrated bypass channels |
| CN204575146U (en) * | 2015-04-28 | 2015-08-19 | 江苏华海测控技术有限公司 | Integration welded type ring casing pressure orifice plate |
| CN105526980A (en) * | 2016-01-15 | 2016-04-27 | 江苏华海测控技术有限公司 | Multi-nozzle balance flowmeter |
Non-Patent Citations (3)
| Title |
|---|
| 徐元昌: "《流体传动与控制》", 31 March 1998, 同济大学出版社 * |
| 潘丕武，张明: "《天然气计量技术基础上》", 31 May 2013, 石油工业出版社 * |
| 陈光等: "《新材料概论》", 30 April 2013, 国防工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806913A (en) * | 2017-10-30 | 2018-03-16 | 成都瞬科仪器仪表有限公司 | Gas pipeline plurality of nozzle-type flow measuring probe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161116 |