CN106092224A - A kind of effusion meter of band nozzle arrangements - Google Patents
A kind of effusion meter of band nozzle arrangements Download PDFInfo
- Publication number
- CN106092224A CN106092224A CN201610445261.3A CN201610445261A CN106092224A CN 106092224 A CN106092224 A CN 106092224A CN 201610445261 A CN201610445261 A CN 201610445261A CN 106092224 A CN106092224 A CN 106092224A
- Authority
- CN
- China
- Prior art keywords
- connecting tube
- plate body
- orifice plate
- packing circle
- packing
- 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
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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
- G01F1/40—Details of construction of the flow constriction devices
- G01F1/42—Orifices or nozzles
Abstract
The invention discloses the effusion meter of a kind of band nozzle arrangements, 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 the effusion meter of a kind of band nozzle arrangements.
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 the effusion meter of a kind of band nozzle arrangements, improve the scope of fluid measurement, extend stream
The service life of gauge.
The purpose of the present invention is achieved through the following technical solutions:
The effusion meter of a kind of band nozzle arrangements, including flanged (FLGD) connecting tube, straight length, sensor, two packing circles and two
Individual pressure 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 leads to
Cross ring flange to be connected with straight length, the end face that two described connecting tubes are oppositely arranged is respectively arranged with packing circle, orifice plate plate
Body is arranged between two packing circles, and orifice plate plate body has multiple nozzle, and packing circle side have with connecting tube inside
The air flue of connection, pressure pipe one end connects with air flue, and the pressure pipe other end connects with sensor, on packing circle opposite side inwall
Have and the internal dashpot connected of connecting tube, and two dashpots and two air flues corresponding and be symmetrically distributed in orifice plate plate body
Both sides；Described nozzle is flowed to the section of reducing, flat segments and the internal diameter that successively decrease along fluid stream by the internal diameter being sequentially connected with along fluid
Constituting to incremental expanding reach, the cross section of described dashpot is rectangle, and have on upper and lower two inwalls of dashpot multiple also
That row is distributed and that cross section is circular arc reflection runner.
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, being positioned at after before and after orifice plate plate body, the fluid of both sides has respectively entered dashpot, fluid is by buffering
Constantly bounce-back on groove inwall is so that the kinetic energy of himself is gradually reduced, and the cross section of dashpot is arranged to square by the present invention
Shape, can make fluid incident flow in dashpot and contrajet mutually collide so that kinetic energy reduces, it is to avoid too much
Buffering cell wall is impacted by contrajet again, the generation amount of noise in reduction dashpot, and in upper and lower two of dashpot
Having multiple that be distributed side by side and that cross section is circular arc reflection runner on wall, add the reflective surface area of fluid, it is right to accelerate
The removal of both sides pressure suddenly before and after orifice plate plate body, it is ensured that the service life that orifice plate plate body is permanent.
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；
Fig. 2 is the enlarged drawing of dashpot.
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, 91-reflect runner, 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 depicted in figs. 1 and 2, the present embodiment include flanged (FLGD) connecting tube 1, straight length 11, sensor, two packing circle 8 with
And two pressure pipes 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
The other end is connected with straight length 11 by ring flange 10, is respectively arranged with on the end face that two described connecting tubes 1 are oppositely arranged
Packing circle 8, orifice plate plate body 3 is arranged between two packing circles 8, and orifice plate plate body 3 has multiple nozzle, and at packing circle 8 one
Side has the air flue 4 that connect internal with connecting tube 1, and pressure pipe 6 one end connects with air flue 4, and pressure pipe 6 other end is with sensor even
Logical, packing circle 8 opposite side inwalls have and the dashpot 9 connected inside connecting tube 1, and two dashpots 9 and two gas
Road 4 is corresponding and is symmetrically distributed in the both sides of orifice plate plate body 3；Described nozzle is 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 the cross section of described dashpot 9 is rectangle, and
Multiple that be distributed side by side and that cross section is circular arc reflection runner 91 is had on about 9 two inwalls of dashpot.
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, after the fluid being positioned at orifice plate plate body 3 both sides front and back has respectively entered dashpot 9, fluid is by slow
Constantly bounce-back on jet-bedding 9 inwall is so that the kinetic energy of himself is gradually reduced, and the cross section of dashpot 9 is arranged to by the present invention
Rectangle, can make fluid incident flow in dashpot 9 and contrajet mutually collide so that kinetic energy reduces, it is to avoid too much
Contrajet again dashpot 9 wall is impacted, reduce the generation amount of noise in dashpot 9, and at dashpot about 9 two
Have multiple that be distributed side by side and that cross section is circular arc reflection runner 91 on individual inwall, add the reflective surface area of fluid, add
Fast to the removal of both sides pressure suddenly before and after orifice plate plate body 3, it is ensured that the service life that orifice plate plate body 3 is permanent.
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. an effusion meter for band nozzle arrangements, including flanged (FLGD) connecting tube (1), straight length (11), sensor (10), two
Packing circle (8) and two pressure pipes (6), it is characterised in that: the end, one end that two flanged (FLGD) described connecting tubes (1) are adjacent
Being linked into an integrated entity by bolt (2), connecting tube (1) other end is connected with straight length (11), described in two by ring flange (10)
Be respectively arranged with on the end face that connecting tube (1) is oppositely arranged packing circle (8), orifice plate plate body (3) be arranged on two packing circle (8) it
Between, orifice plate plate body (3) has multiple nozzle, and has the air flue that connect internal with connecting tube (1) in packing circle (8) side
(4), pressure pipe (6) one end connects with air flue (4), and pressure pipe (6) other end connects with sensor (10), another in packing circle (8)
Have the dashpot (9) that connect internal with connecting tube (1) on the inwall of side, and two dashpots (9) are relative with two air flues (4)
The both sides of orifice plate plate body (3) and should be symmetrically distributed in；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 the cross section of described dashpot (9) is rectangle, and slow
Multiple that be distributed side by side and that cross section is circular arc reflection runner (91) is had on upper and lower two inwalls of jet-bedding (9).
The effusion meter of a kind of band nozzle arrangements the most according to claim 1, it is characterised in that: multiple described nozzles are rounded
Array and dividing equally on orifice plate plate body (3).
The effusion meter of a kind of band nozzle arrangements the most according to claim 1, it is characterised in that: described orifice plate plate body (3)
End, two ends 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 |
|---|---|---|---|
| CN201610445261.3A CN106092224A (en) | 2016-06-21 | 2016-06-21 | A kind of effusion meter of band nozzle arrangements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610445261.3A CN106092224A (en) | 2016-06-21 | 2016-06-21 | A kind of effusion meter of band nozzle arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106092224A true CN106092224A (en) | 2016-11-09 |
Family
ID=57237893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610445261.3A Pending CN106092224A (en) | 2016-06-21 | 2016-06-21 | A kind of effusion meter of band nozzle arrangements |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106092224A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843300A (en) * | 2017-10-30 | 2018-03-27 | 成都瞬科仪器仪表有限公司 | A kind of nozzle meter for gas detection |
| CN107884016A (en) * | 2017-10-30 | 2018-04-06 | 成都瞬科仪器仪表有限公司 | Possesses the flowmeter of nozzle arrangements |
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| US20040016302A1 (en) * | 2002-07-24 | 2004-01-29 | Boaz Misholi | Respiratory flow sensor |
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| CN105526980A (en) * | 2016-01-15 | 2016-04-27 | 江苏华海测控技术有限公司 | Multi-nozzle balanced flow meter |
-
2016
- 2016-06-21 CN CN201610445261.3A patent/CN106092224A/en active Pending
Patent Citations (6)
| 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 |
| CN105352561A (en) * | 2015-12-08 | 2016-02-24 | 重庆联大仪表有限公司 | Flowmeter with buffer function |
| CN105526980A (en) * | 2016-01-15 | 2016-04-27 | 江苏华海测控技术有限公司 | Multi-nozzle balanced flow meter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843300A (en) * | 2017-10-30 | 2018-03-27 | 成都瞬科仪器仪表有限公司 | A kind of nozzle meter for gas detection |
| CN107884016A (en) * | 2017-10-30 | 2018-04-06 | 成都瞬科仪器仪表有限公司 | Possesses the flowmeter of nozzle arrangements |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161109 |
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| RJ01 | Rejection of invention patent application after publication |