CN202403742U - Porous balanced throttling meter - Google Patents
Porous balanced throttling meter Download PDFInfo
- Publication number
- CN202403742U CN202403742U CN2011204724127U CN201120472412U CN202403742U CN 202403742 U CN202403742 U CN 202403742U CN 2011204724127 U CN2011204724127 U CN 2011204724127U CN 201120472412 U CN201120472412 U CN 201120472412U CN 202403742 U CN202403742 U CN 202403742U
- Authority
- CN
- China
- Prior art keywords
- porous
- pressure
- throttling
- picking
- pressure ring
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a porous balanced throttling meter which comprises a pressure-picking ring chamber, flanges, fasteners and a porous balanced throttling part, wherein the porous balanced throttling part is arranged in the pressure-picking ring chamber; the flanges are respectively arranged at two sides of the pressure-picking ring chamber and are fixed by the fasteners; and a plurality of symmetrical holes are formed in the middle of the porous throttling part. According to the porous balanced throttling meter disclosed by the utility model, due to the adoption of symmetrical porous design on the porous balanced throttling part, a flow field is quickly rectified into an approximate ideal body, the dead-time effect due to the arrangement of one throttling hole is eliminated, the eddy current in a pressure-picking area is greatly reduced, the signal-to-noise ratio of a differential pressure signal picked from a pressure-picking port is greatly increased and further the precision and the repeatability of the sensor are greatly improved.
Description
Technical field
The utility model relates to the instrument application, relates in particular to the porous balance throttling meter of measurement gas, liquid and other medium flow in the industries such as being applied to oil, chemical industry.
Background technology
The throttle orifice plate apparatus standardization is historical existing decades, has advantages such as simple, reliable, safe, widely applicable, that use amount is huge, the user is familiar.But the standard orifice plate in the standard orifice plate restriction device is because design has only a center hole; There is tangible dead time effect: the eddy current that produces before and after the throttling element, reduced measuring accuracy, bring very big permanent crushing; Need very long straight length rectification; Range ratio is merely 3: 1-4: 1, also there are shortcomings such as foreign material delay, obstruction and edge acute angle be easy to wear, and increase and safeguard and the calibrating cost.
The utility model content
The purpose of the utility model provides a kind of porous balance throttling element; In conjunction with rectification, the measuring principle of porous rectifier and standard orifice plate, on the basis of the circular hole in throttling orifice plate center, the circular hole that symmetrical distribution quantity does not wait; Realize the flow field balance; Rectification reaches best effect, fully satisfies Bernoulli's theorem convection cell Testing requirement, dead time effect is dropped to minimum.
For realizing above-mentioned purpose, the utility model is realized through following technical scheme:
Porous balance throttling meter comprises pressure ring casing, flange and securing member, also comprises porous balance throttling element; Porous balance throttling element is installed in the pressure ring casing; Flange is installed in pressure ring casing both sides, and fixes through securing member, and porous balance throttling element middle part has several symmetrical holes.
Said symmetrical holes is four.
Said symmetrical holes is two-way straight hole.
Be provided with pad between said pressure ring casing and the flange.
Said pressure ring casing one end is equipped with the pressure pipe of symmetry.
The beneficial effect of the utility model does; Through the symmetrical porous design on the porous balance throttling element; The flow field is rectified into the approximate ideal body fast, eliminates only dead time effect that the hole throttling brings, pressure zone eddy current reduces greatly; The differential pressure signal signal to noise ratio (S/N ratio) that pressure tappings picks up improves greatly, thereby has significantly improved sensor accuracy and repeatability.Further change the counter sink in the standard orifice plate design of into two-way straight hole, about symmetry fully, can realize the measurement of bidirectional flow, make the throttling element structure safer, longer service life.
Description of drawings
According to embodiment and accompanying drawing the utility model is done further explain below.
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of standard orifice plate in the primary standard throttle orifice plate apparatus;
Fig. 3 is that the A-A of Fig. 2 is to view;
Fig. 4 is the structural representation of the described porous balance of the utility model throttling element;
Fig. 5 is that the B-B of Fig. 4 is to view.
Among the figure:
1, porous balance throttling element; 2, pressure ring casing; 3, pressure pipe; 4, flange; 5, securing member; 6, pad; 7, counter sink; 8, symmetrical holes.
Embodiment
Shown in Fig. 1-5; Provided the structural representation of the said a kind of porous balance throttling meter of the utility model, comprised pressure ring casing 2, flange 4, securing member 5 and porous balance throttling element 1, porous balance throttling element 1 is installed in the pressure ring casing 2; Flange 4 is installed in pressure ring casing 2 both sides; And fix through securing member 5, porous balance throttling element 1 middle part has four symmetrical holes 8, and said symmetrical holes 8 is two-way straight hole; Be provided with pad 6 between pressure ring casing 2 and the flange 4, pressure ring casing 2 one ends are equipped with the pressure pipe 3 of symmetry.
Shown in Fig. 2-3, be the structural representation of standard orifice plate in the primary standard throttle orifice plate apparatus, be a hole in this standard orifice plate, and be counter sink 7.
Shown in Fig. 4-5, be the structural representation of the porous balance throttling element in the present embodiment, the middle part is set to four symmetrical holes 8, and changes former counter sink 7 into two-way straight hole.
The utility model is through the symmetrical porous design on the porous balance throttling element; The flow field is rectified into the approximate ideal body fast; Eliminate only dead time effect that the hole throttling brings; Pressure zone eddy current reduces greatly, and the differential pressure signal signal to noise ratio (S/N ratio) that pressure tappings picks up improves greatly, thereby has significantly improved sensor accuracy and repeatability.
Claims (5)
1. porous balance throttling meter; Comprise pressure ring casing, flange and securing member; It is characterized in that: also comprise porous balance throttling element, porous balance throttling element is installed in the pressure ring casing, and flange is installed in pressure ring casing both sides; And fix through securing member, porous balance throttling element middle part has several symmetrical holes.
2. porous balance throttling meter according to claim 1, it is characterized in that: said symmetrical holes is four.
3. porous balance throttling meter according to claim 1 and 2, it is characterized in that: said symmetrical holes is two-way straight hole.
4. porous balance throttling meter according to claim 3 is characterized in that: be provided with pad between said pressure ring casing and the flange.
5. porous balance throttling meter according to claim 3 is characterized in that: said pressure ring casing one end is equipped with the pressure pipe of symmetry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204724127U CN202403742U (en) | 2011-11-24 | 2011-11-24 | Porous balanced throttling meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204724127U CN202403742U (en) | 2011-11-24 | 2011-11-24 | Porous balanced throttling meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202403742U true CN202403742U (en) | 2012-08-29 |
Family
ID=46701384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204724127U Expired - Fee Related CN202403742U (en) | 2011-11-24 | 2011-11-24 | Porous balanced throttling meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202403742U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048022A (en) * | 2012-12-21 | 2013-04-17 | 上海华强浮罗仪表有限公司 | Balance type flow meter throttling element |
| CN103344286A (en) * | 2013-06-28 | 2013-10-09 | 上海华强浮罗仪表有限公司 | Double-flange balance flow meter |
| CN108151811A (en) * | 2018-02-07 | 2018-06-12 | 承德石油高等专科学校 | A kind of novel central symmetry multi-hole orifice flow throttling set |
| EP4455621A1 (en) | 2023-04-28 | 2024-10-30 | Drägerwerk AG & Co. KGaA | Flow resistance tube for a flow sensor, flow sensor and method for producing a flow resistance tube |
-
2011
- 2011-11-24 CN CN2011204724127U patent/CN202403742U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048022A (en) * | 2012-12-21 | 2013-04-17 | 上海华强浮罗仪表有限公司 | Balance type flow meter throttling element |
| CN103344286A (en) * | 2013-06-28 | 2013-10-09 | 上海华强浮罗仪表有限公司 | Double-flange balance flow meter |
| CN108151811A (en) * | 2018-02-07 | 2018-06-12 | 承德石油高等专科学校 | A kind of novel central symmetry multi-hole orifice flow throttling set |
| EP4455621A1 (en) | 2023-04-28 | 2024-10-30 | Drägerwerk AG & Co. KGaA | Flow resistance tube for a flow sensor, flow sensor and method for producing a flow resistance tube |
| DE102023111049A1 (en) | 2023-04-28 | 2024-10-31 | Drägerwerk AG & Co. KGaA | Flow resistance tube for a flow sensor, flow sensor and method for producing a flow resistance tube |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202403742U (en) | Porous balanced throttling meter | |
| CN202255481U (en) | Novel symmetrical balanced flow meter | |
| CN101539444A (en) | Differential pressure type flow sensor capable of realizing direct pressure tapping and two-way measurement | |
| CN1936506A (en) | Small section branch-flow measuring method for large-diameter gas flow and apparatus thereof | |
| CN214502553U (en) | Orifice flowmeter | |
| CN203585695U (en) | Wind pipe assembly and pressure measuring device thereof | |
| CN113091838A (en) | Orifice flowmeter | |
| CN202494478U (en) | Plug-in balance flow meter | |
| CN201145593Y (en) | Multi-larynx type hole plate | |
| CN103033222A (en) | Super-minor-caliber three-diamond-type flowmeter | |
| CN202631016U (en) | Function hole balance flow meter | |
| CN201764991U (en) | Large-caliber impeller type pulse signal flow sensor | |
| CN204854847U (en) | MEMS flowmeter runner structure | |
| CN208567986U (en) | A kind of flowmeter | |
| CN204115782U (en) | Oil recovery winding pipe flow rate metering device | |
| CN109443458A (en) | A kind of concave arc shape double fluid is to mean velocity tube flowmeter | |
| CN204373728U (en) | Water level difference measuring self-recording device | |
| CN202274898U (en) | Small-caliber flow meter of three-edged type structure | |
| CN201897489U (en) | Mass flowmeter for integrated V-shaped cone | |
| CN203191004U (en) | Turbine flowmeter | |
| CN102023037A (en) | Non-full pipe electromagnetic flowmeter | |
| CN202994219U (en) | Balance flowmeter throttling element | |
| CN206177381U (en) | Wind channel flow measuring device | |
| CN202511829U (en) | Balance fluid metering valve | |
| CN203259198U (en) | Built-in balance flow meter |
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 |
Granted publication date: 20120829 Termination date: 20171124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |