CN107747980A - A kind of gas field air duct flow detector - Google Patents
A kind of gas field air duct flow detector Download PDFInfo
- Publication number
- CN107747980A CN107747980A CN201711038842.6A CN201711038842A CN107747980A CN 107747980 A CN107747980 A CN 107747980A CN 201711038842 A CN201711038842 A CN 201711038842A CN 107747980 A CN107747980 A CN 107747980A
- Authority
- CN
- China
- Prior art keywords
- pipe fitting
- pipe
- plate body
- plug
- pressure
- 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.)
- Withdrawn
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
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/10—Preventing damage by freezing or excess pressure or insufficient pressure
- G01F15/105—Preventing damage by hydraulic shocks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/18—Supports or connecting means for meters
- G01F15/185—Connecting means, e.g. bypass conduits
Abstract
The invention discloses a kind of gas field air duct flow detector, including pipe fitting, straight length, sensor, two plugs and two pressure pipes, two pipe fittings are integral by bolt connection, the pipe fitting other end is logical to be connected with straight length, plug is provided with the end face of two pipe fittings, plate body is arranged between two plugs, multiple spiral nozzles are provided with plate body, the air flue connected with inside pipe fitting is provided with plug side, pressure pipe one end connects with air flue, the pressure pipe other end connects with sensor, the dashpot connected with inside pipe fitting is provided with plug opposite side inwall, the diminution section that nozzle is successively decreased by the internal diameter being sequentially connected along fluid flow direction, flat segments and internal diameter flow to incremental expanding reach along fluid and formed.Connected between pipe fitting and pipe fitting, between pipe fitting and straight length using flange, substantially increase practicality of the pipe fitting in different types of sensor measurement process, facilitate staff's Fast Installation to dismantle.
Description
Technical field
The present invention relates to gas-field exploitation field, in particular to a kind of gas field air duct flow detector.
Background technology
At present, the most frequently used form of nozzle of nozzle flowmeter has calibrating nozzle, Long Nozzle, Venturi nozzle etc., these
The following shortcoming of throttling form generally existing：The repeatability of measurement, accuracy mean level in flowmeter, due to the factor of many
It is intricate to influence, and precision is difficult to improve；In-site installation condition requires higher, it is necessary to longer straight length, it is difficult to meets,
The pressure loss is bigger.
The content of the invention
It is an object of the invention to provide a kind of gas field air duct flow detector, to solve drawbacks described above.
The purpose of the present invention is achieved through the following technical solutions：
A kind of gas field air duct flow detector, including pipe fitting, straight length, sensor, two plugs and two
Individual pressure pipe, two adjacent one end ends of flanged (FLGD) pipe fitting are integral by bolt connection, and the pipe fitting other end passes through method
Blue disk is connected with straight length, and plug is respectively arranged with the end face that two pipe fittings are oppositely arranged, and plate body is arranged on two
Multiple spiral nozzles are provided between plug, on plate body, and the air flue connected with inside pipe fitting is provided with plug side, pressure pipe one
End connects with air flue, and the pressure pipe other end connects with sensor, is provided with what is connected with inside pipe fitting on plug opposite side inwall
Dashpot, and two dashpots are corresponding with two air flues and are symmetrically distributed in the both sides of plate body；The nozzle is by being sequentially connected
Internal diameter incremental expanding reach composition is flowed to along fluid the diminutions section, flat segments and the internal diameter that successively decrease of flow direction along fluid, described
The first conical section, projection and the second conical section, and first conical section are from top to bottom disposed with pressure inside pipe wall
Reduced diameter section and the second conical section reduced diameter section respectively at projection both ends connect.
The present invention is in use, fluid is entered in pipe fitting by straight length, by multiple spiral nozzles entrance on orifice plate plate
Into another pipe fitting, and now a fluid stream forms local contraction on front side of plate body, and then causes the flow velocity increase of fluid, static pressure
Reduce, i.e., pressure difference is generated between the front side of plate body and rear side, fluid flow is bigger, and caused pressure difference is bigger, now senses
Device passes through the measurement of pressure pipe and air flue to plate body front and rear sides pressure, you can calculates the uninterrupted of fluid.Wherein, plate
Diminution section, flat segments and the internal diameter that the multiple spiral nozzles set on body successively decrease by the internal diameter being sequentially connected along fluid flow direction
Along fluid incremental expanding reach is flowed to form, and fluid nozzle interior by accelerating, at the uniform velocity and three motion states of slowing down
Afterwards, the flow field now before and after plate body is tended to balance, and is avoided plate body front and rear sides from vortex, vibration and signal noise occur, is carried significantly
The high stability in flow field；And connected between pipe fitting and pipe fitting, between pipe fitting and straight length using flange, substantially increase
Practicality of the pipe fitting in different types of sensor measurement process, staff's Fast Installation is facilitated to dismantle.And it is opened in stifled
Dashpot in rostral wall, which can guide the fluid impacted on plate body front and rear sides, to be opened, and is reduced on the end face of plate body front and rear sides
Impact dynamics, reduce the wadding stream shearing force being subject in the diminution section and expanding reach of nozzle, realize and extend plate body service life
Purpose.
Wherein, fluid is entered in the pressure pipe connected with sensor by air flue, i.e. the pressure value of plate body front and rear sides
Pressure pipe fluid pressure value is read by sensor to embody, due to a tentering occurs by the fluid after nozzle in pipe fitting
The fluctuation of degree, i.e., the fluid in air flue and pressure pipe on rear side of plate body equally occur fluctuation, now supervised by sensor
The differential pressure measured is easy to deviation occur, and the present invention is from top to bottom disposed with the first conical section, projection inside pressure pipe
And second conical section, fluid have the outflow of its reduced diameter section after from bottom to top flowing through the enlarged diameter section of the second conical section so that stream
Body speed itself further increases, and when fluid passes through projection, then steadily moved in the cylindric circulation section that projection is formed,
Influenceed with reducing caused by fluid fluctuation, last fluid is flowed into again by its enlarged diameter section stream by the first conical section reduced diameter section
Go out, the fluid for reducing high-speed motion causes serious impact to sensor, to ensure the accuracy of sensor detection.
Packing pad is provided with the junction of plate body both ends end and plug.For convenience of pipe fitting in different types of biography
Application between sensor, between plate body is clamped in two pipe fittings by the cooperation of bolt and plug, while utilize the envelope of L-type
Dottle pin is sealed the part that plug contacts respectively on the both ends of plate body, realizes being fully sealed in pipe fitting, is ensured two and is taken
Pressure pipe in air flue in the data that collect it is accurate.
The present invention compared with prior art, has the following advantages and advantages：
The present invention for convenience of application of the pipe fitting between different types of sensor, by bolt and plug matched somebody with somebody by plate body
Conjunction is clamped between two pipe fittings, while using packing pad that the part progress that plug contact is distinguished on the both ends of plate body is close
Envelope, being fully sealed in pipe fitting is realized, the data collected in ensureing two pressure pipes in air flue are accurate.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is schematic structural view of the invention.
Mark and corresponding parts title in accompanying drawing：
1- pipe fittings, 2- bolts, 3- plate bodys, 4- air flues, 5- inductors, 6- pressure pipes, the conical sections of 61- first, 62- projections,
The conical sections of 63- second, 7- packings pad, 8- plugs, 9- dashpots, 10- ring flanges, 11- straight lengths.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
As shown in figure 1, the present embodiment includes pipe fitting 1, straight length 11, sensor, two plugs 8 and two pressure pipes 6,
Two adjacent one end ends of flanged (FLGD) pipe fitting 1 are linked into an integrated entity by bolt 2, and the other end of pipe fitting 1 passes through ring flange 10
It is connected with straight length 11, is respectively arranged with plug 8 on the end face that two pipe fittings 1 are oppositely arranged, plate body 3 is arranged on two
Between plug 8, multiple spiral nozzles are provided with plate body 3, and the air flue 4 connected with inside pipe fitting 1 is provided with the side of plug 8, are taken
The one end of pressure pipe 6 connects with air flue 4, and the other end of pressure pipe 6 connects with sensor, is provided with and pipe fitting 1 on the opposite side inwall of plug 8
The dashpot 9 of inside connection, and two dashpots 9 are corresponding with two air flues 4 and are symmetrically distributed in the both sides of plate body 3；It is described
Diminution section, flat segments and the internal diameter that nozzle is successively decreased by the internal diameter being sequentially connected along fluid flow direction flow to incremental expansion along fluid
Section is formed, and the first conical section 61, the conical section of projection 62 and second are from top to bottom disposed with the inwall of pressure pipe 6
63, and the reduced diameter section of first conical section 61 and the reduced diameter section of the second conical section 63 connect respectively at the both ends of projection 62
Connect.
The present invention enters by multiple spiral nozzles on orifice plate plate in use, fluid is entered in pipe fitting 1 by straight length 11
Enter into another pipe fitting 1, and now a fluid stream forms local contraction in the front side of plate body 3, and then cause the flow velocity increase of fluid, it is quiet
Pressure reduces, i.e., pressure difference is generated between the front side of plate body 3 and rear side, fluid flow is bigger, and caused pressure difference is bigger, now
Sensor passes through the measurement of pressure pipe 6 and air flue 4 to the front and rear sides pressure of plate body 3, you can calculates the uninterrupted of fluid.
Wherein, diminution section, the flat segments that the multiple spiral nozzles set on plate body 3 successively decrease by the internal diameter being sequentially connected along fluid flow direction
And internal diameter flows to incremental expanding reach along fluid and formed, and fluid in nozzle interior by accelerating, at the uniform velocity and slow down three
After motion state, now the flow field before and after plate body 3 is tended to balance, and is avoided the front and rear sides of plate body 3 from vortex, vibration and signal occur and is made an uproar
Sound, substantially increase the stability in flow field；And use flange between pipe fitting 1 and pipe fitting 1, between pipe fitting 1 and straight length 11
Connection, substantially increases practicality of the pipe fitting 1 in different types of sensor measurement process, facilitates staff's Fast Installation
Dismounting.And the fluid impacted on the front and rear sides of plate body 3 can be guided and opened by the dashpot 9 being opened in the side wall of plug 8, reduce
Impact dynamics on the front and rear sides end face of plate body 3, the wadding stream shearing force being subject in the diminution section and expanding reach of nozzle is reduced, it is real
Now extend the purpose of the service life of plate body 3.
Wherein, fluid is entered in the pressure pipe 6 connected with sensor 5 by air flue 4, i.e. the pressure of the front and rear sides of plate body 3
Force value reads the fluid pressure value of pressure pipe 6 to embody by sensor 5, due to being realized in pipe fitting 1 by the stream after nozzle
Fluctuation equally occurs in the fluctuation of existing certain amplitude, the i.e. fluid in the air flue 4 and pressure pipe 6 of the rear side of plate body 3, now
The differential pressure detected by sensor 5 is easy to deviation occur, and the present invention is from top to bottom disposed with first inside pressure pipe 6
Conical section 61, the conical section 63 of projection 62 and second, fluid have it after from bottom to top flowing through the enlarged diameter section of the second conical section 63
Reduced diameter section flows out so that and fluid speed itself further increases, and when fluid pass through projection 62, then in the circle of the formation of projection 62
Column circulation is steadily moved in section, is influenceed with reducing caused by fluid fluctuation, last fluid is small by the first conical section 61
Diameter segment flows into be flowed out by its enlarged diameter section again, and the fluid for reducing high-speed motion causes serious impact to sensor 5, to ensure
The accuracy that sensor 5 detects.
Further, packing pad 7 is provided with the junction of the both ends end of plate body 3 and plug 8.For convenience of pipe fitting 1
Application between different types of sensor, plate body 3 by the cooperation of bolt 2 and plug 8 be clamped in two pipe fittings 1 it
Between, while sealed the part that plug 8 contacts respectively on the both ends of plate body 3 using the packing pad 7 of L-type, realize in pipe fitting 1
Be fully sealed, the data collected in ensureing two pressure pipes 6 in the air flue 4 are accurate.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (2)
1. a kind of gas field air duct flow detector, including pipe fitting (1), straight length (11), sensor (10), two it is stifled
Head (8) and two pressure pipes (6), it is characterised in that：The adjacent one end end of two flanged (FLGD) pipe fittings (1) is by bolt
(2) link into an integrated entity, pipe fitting (1) other end is connected by ring flange (10) with straight length (11), in two pipe fitting (1) phases
To being respectively arranged with plug (8) on the end face of setting, plate body (3) is arranged between two plugs (8), is provided with plate body (3) more
Individual spiral nozzle, and be provided with and the internal air flue (4) connected of pipe fitting (1), pressure pipe (6) one end and air flue in plug (8) side
(4) connect, pressure pipe (6) other end connects with sensor (10), is provided with plug (8) opposite side inwall interior with pipe fitting (1)
The dashpot (9) of portion's connection, and two dashpots (9) are corresponding with two air flues (4) and are symmetrically distributed in the two of plate body (3)
Side；The nozzle is passed by the internal diameter being sequentially connected along diminution section, flat segments and the internal diameter that fluid flow direction is successively decreased along fluid flow direction
The expanding reach of increasing is formed, and the first conical section (61), projection (62) are from top to bottom disposed with the pressure pipe (6) inwall
And second conical section (63), and the reduced diameter section of first conical section (61) and the reduced diameter section of the second conical section (63)
Connected respectively at the both ends of projection (62).
A kind of 2. gas field air duct flow detector according to claim 1, it is characterised in that：In the plate body
(3) both ends end and the junction of plug (8) are provided with packing pad (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711038842.6A CN107747980A (en) | 2017-10-30 | 2017-10-30 | A kind of gas field air duct flow detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711038842.6A CN107747980A (en) | 2017-10-30 | 2017-10-30 | A kind of gas field air duct flow detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107747980A true CN107747980A (en) | 2018-03-02 |
Family
ID=61253727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711038842.6A Withdrawn CN107747980A (en) | 2017-10-30 | 2017-10-30 | A kind of gas field air duct flow detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107747980A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953849A (en) * | 2016-06-21 | 2016-09-21 | 成都国光电子仪表有限责任公司 | Natural gas flow measurer |
-
2017
- 2017-10-30 CN CN201711038842.6A patent/CN107747980A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953849A (en) * | 2016-06-21 | 2016-09-21 | 成都国光电子仪表有限责任公司 | Natural gas flow measurer |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180302 |
|
| WW01 | Invention patent application withdrawn after publication |