CN100389306C - Flowmeter with movable annular scraper - Google Patents
Flowmeter with movable annular scraper Download PDFInfo
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- CN100389306C CN100389306C CNB2004100344138A CN200410034413A CN100389306C CN 100389306 C CN100389306 C CN 100389306C CN B2004100344138 A CNB2004100344138 A CN B2004100344138A CN 200410034413 A CN200410034413 A CN 200410034413A CN 100389306 C CN100389306 C CN 100389306C
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- room
- rotating shaft
- movable scraping
- central rotating
- annular
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Abstract
The present invention relates to a flowmeter with a movable annular scraper, which comprises a main body, a front and a rear end covers, a liquid inlet, a liquid outlet, a central rotating shaft, an annular metering room, a plurality of scraper containing rooms, a plurality of movable scrapers, a metering space and an inlet-outlet guider, wherein the front and the rear end covers are arranged along the axial direction of the main body; the liquid inlet and the liquid outlet are arranged on the main body; the central rotating shaft is pivoted on the front and rear end covers of the main body; the annular metering room is formed between the outer wall of the central rotating shaft and the inner wall of the main body. The scraper containing rooms comprise scraping post containing rooms and roller containing rooms which are alternately and concavely arranged on the central rotating shaft along the axial outer side wall of the central rotating shaft. The scrapers are composed of scraping posts, rollers and cambered scrapers and are respectively arranged in the scraper containing rooms. Two adjacent movable scrapers, the annular metering room and the front and the rear end covers form the metering space. The inlet-outlet guider is arranged between the liquid inlet and the liquid outlet of the annular metering room, and the thickness of the inlet-outlet guider is less than or equals to that of the annular metering room. The present invention has the advantages of high measuring accuracy and favorable repeatability and reliability; the relative design accuracy can reach a range of-0.1% to 0.1 % or higher and can practically reach a range of-0.5% to 0.5%.
Description
Technical field
The present invention relates to a kind of petroleum metering instrument, especially a kind of annular movable scraping plate flowmeter.
Background technology
Existing volumeter can be divided into the waist wheel, oval gear flowmeter, blade flowmeter, the Double-scraper flowmeter, rotary piston flowmeter etc., its advantage measuring accuracy height, the pipe laying condition is to not influence of measuring accuracy, the measurement and the range ability degree that can be used for high viscosity liquid are wide, but shortcoming is a complex structure, bulky, the measured medium kind, bore, medium duty limitation is bigger, produce noise and vibration during operation greatly, and easily block easy to wear, the failure rate height, it is difficult to safeguard, most of instrument only is applicable to clean monophasic fluid, and is unfit to do heavy caliber flowing meter.
Summary of the invention
The objective of the invention is provides a kind of annular movable scraping plate flowmeter in order to overcome shortcoming of the prior art.This flowmeter structure is simple, volume is little, measuring accuracy is high, wearing and tearing minimum (inclusion-free is invaded non-maintaining); Friction and noise during operation; And repeatability, good reliability, good linearity.
Purpose of the present invention can realize by following measure:
A kind of annular movable scraping plate flowmeter comprises main body, and along the forward and backward end cap and the liquid import and export be located at main body on of body shaft to setting; Wherein also comprise:
Central rotating shaft, its front and back ends that is hubbed in the main body covers, and forms annular measuring room between central rotating shaft outer wall and main body inner wall;
A plurality of scraper plate rooms comprise and scrape post room and roller room; This scrapes the post room and this roller room alternately is arranged with on central rotating shaft along the axial lateral wall of central rotating shaft;
A plurality of movable scraping plates, described scraper plate by scrape post and roller and with scrape the arc scraper plate that post links to each other with roller and form; This movable scraping plate axially is placed in respectively in a plurality of scraper plate rooms along central rotating shaft; Form the metric space of a fixed volume between two adjacent movable scraping plates and this annular measuring room and this forward and backward end cap;
The gateway guides is located between the liquid entrance of annular measuring room, and its thickness less than/or equal the thickness of annular measuring room.
According to above-mentioned conception, the post of scraping of this movable scraping plate is fixed at and scrapes in the post room, its roller then can be along the inwall of annular measuring room sliding the rolling, and can close in the roller room.
According to above-mentioned conception, the arc length of this movable scraping plate is greater than the thickness of this annular measuring room, and the radian of movable scraping plate equals the radian of the outer wall of central rotating shaft.
According to above-mentioned conception, the roller room in this two adjacent scraper plate room and scrape the arc length that minimum arc length between the post room equals the arc scraper plate of movable scraping plate.
According to above-mentioned conception, this gateway guides cooperates with main body inner wall, and the guides inwall is a disc, and concentric with central rotating shaft, main body, guides liquid-inlet side is the wedge circular arc of feed liquor direction, and guides liquid outlet side is the wedge circular arc of fluid direction.
According to above-mentioned conception, this flowmeter also comprises a plurality of push rods, radially is slidedly arranged in this central rotating shaft between the two scraper plate rooms corresponding to radial symmetry, and is used for this movable scraping plate of pushing tow.
The present invention has following advantage compared to existing technology:
1, measuring accuracy height of the present invention, design accuracy can reach ± more than 0.1%, reality can reach ± 0.5% in, and repeatability, good reliability.
2, measurement range ability of the present invention can reach more than 1: 10, good linearity,
3, the supporting multiphase flow rate meter (void fraction≤20%) of forming of the present invention and oil gas water three phase analyser.
4, the present invention has realized that a plurality of movable scraping plates related central rotating shaft in annular measuring room rotatablely moves, wear and tear minimum (inclusion-free is invaded non-maintaining); Friction and noise during operation.
5, the present invention is simple in structure: inner gearless rotatable parts, have only rotating shaft and a plurality of movable scraping plate (3 more than the movable scraping plate).
6, little, in light weight, the dismounting of volume of the present invention convenient save time, keep in repair easy.
7, maintenance of the present invention is easy, has realized the following single single table on-line maintenance of 200mm bore; The maintenance personal only needs the loam cake of table is opened, and extracts movable scraping plate out, takes out rotating shaft, can keep in repair.
8, measuring accuracy of the present invention is not influenced by fluid state, need not straight length; Applicable media range of viscosities wide (thin oil, heavy oil etc.).
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is an A-A cut-open view of the present invention
Fig. 3 is the another embodiment of the present invention structural representation
Fig. 4 is a stereoscopic synoptic diagram of the present invention
Fig. 5 a-Fig. 5 b is a measurement process flow diagram of the present invention
Drawing is described as follows:
The 1-main body 2-3-of annular measuring room central rotating shaft 4-gateway guides
5-movable scraping plate 51-scrapes post 52-arc scraper plate 53-roller
6-scraper plate room 61-scrapes post room 62-roller room
7-push rod 8-liquid-inlet 9-liquid outlet 10-magnetic jack 11-intelligence gauge outfit
12-front end end cover 13-rear end cap 14-base 15-centre bearing
Embodiment
With reference to Fig. 1,2, the invention provides a kind of annular movable scraping plate flowmeter, this annular movable scraping plate flowmeter comprises main body 1, and along the forward and backward end cap 12,13 that axially is provided with in the main body, main body 1 is placed on the base 14; Be provided with central rotating shaft 3 on the front and rear cover 12,13 in main body 1, central rotating shaft 3 is placed on the centre bearing 15 that is located on the front and rear cover 12,13, forms annular measuring room 2 between central rotating shaft 3 outer walls and main body 1 inwall; The axial lateral wall of central rotating shaft 3 is provided with at least 3 scraper plate rooms 6, scraper plate room 6 and central rotating shaft 3 axially be equipped with movable scraping plate 5, this movable scraping plate 5 by 1 scrape post 51 and 1 roller 53 and with scrape the arc scraper plate 52 that post 51 links to each other with roller 53 and form; This movable scraping plate scrape post 51 along central rotating shaft 3 axially be placed in the scraping in the post room 61 of this a plurality of scraper plate rooms 6 respectively, 53 of rollers can be along the inner wall belt of annular measuring room 2 sliding the rolling, can be contained in the roller room 62 of this scraper plate room 6 simultaneously.Therefore the arc length of this movable scraping plate 5, forms the metric space of a fixed volume greater than the thickness of this annular measuring room 2 between this two adjacent movable scraping plate 5 and this annular measuring room 2 and this front and rear cover 12,13.Two adjacent minimum arc length of scraping between post room 61 and the roller room 62 of this scraper plate room 6 equal the arc length of the arc scraper plate 52 of movable scraping plate 5, and the radian of the arc scraper plate 52 of movable scraping plate 5 equals the radian of the outer wall of central rotating shaft 3.With reference to Fig. 4 is another embodiment of the present invention, and a plurality of push rods 7 radially are slidedly arranged in this central rotating shaft 3 between two scraper plate rooms 6 corresponding to radial symmetry, is used for this movable scraping plate 5 of pushing tow.Be provided with liquid import and export 8,9 again on main body 1, liquid entrance 8,9 links to each other with external pipe by flange; Be provided with gateway guides 4 between the liquid entrance 8,9 of annular measuring room 2, its thickness is slightly less than the thickness of annular measuring room 2; The arc that this gateway guides 4 is in these liquid-inlet 8 sides is connected for having the excentric level and smooth camber line of same diameter with the bend pipe of this liquid-inlet side, it is consistent with the circular arc direction of this liquid outlet side 9 that this gateway guides 4 is in the arc of these liquid outlet 9 sides, but be not in the same center of circle.One side of main body 1 is located at magnetic jack 10 and intelligent gauge outfit 11.
Measurement flow process of the present invention is: when the liquid that is measured passes through flowmeter, promote movable scraping plate 5 and related rotating shaft 3 rotations, meanwhile, the roller 53 of movable scraping plate 5 rolls along annular measuring room's 2 outer walls, post 51 relative distances of scraping of each movable scraping plate 5 are definite values, so when also related rotating shaft 3 is rotated under the effect of fluid momentum, between two adjacent movable scraping plates 5, annular measuring room's 2 inside and outside walls and front and rear cover plate 12,13, formed a metric space that volume is fixing.Rotating shaft 3 is whenever turned around, and just can discharge the volume of several same closures.
With reference to Fig. 5 a-Fig. 5 b, be measurement flow process of the present invention, when the liquid that is measured passes through flowmeter, promote movable scraping plate 5 and related rotating shaft 3 rotations, meanwhile, movable scraping plate 5 rolls along annular measuring room's 2 outer walls, and each movable scraping plate 5 relative distance is definite values, so when liquid promotes movable scraping plate 5 and related rotating shaft 3 rotations, between two adjacent movable scraping plates 5, annular measuring room's 2 inside and outside walls and front and rear cover plate 12,13, formed a metric space that volume is fixing.Rotating shaft 3 is whenever turned around, just can discharge the volume of several same closures, operating principle is seen Fig. 5 a, 5b, 5c, 5d, when rotating shaft 3 is in Fig. 5 a position, movable scraping plate B under gravity and action of centrifugal force fully and annular measuring room's 2 outer walls join and cut, closely contact with measuring room 2 inwalls, and guarantee sealing.After entering flowmeter, fluid to be measured promotes movable scraping plate 5 and related rotating shaft 3 rotations.When movable scraping plate 5 and rotating shaft 3 rotate to Fig. 5 b, movable scraping plate C begins receipts and falls corresponding scraper plate room 6 under the effect of gravity and guiding force, movable scraping plate A begins to eject scraper plate room 6 in the effect of centrifugal force, gravity, and join with annular measuring room 2 outer walls and to cut, at this moment fluid to be measured is full of by having formed the fixing metric space of a volume between movable scraping plate A, B, annular measuring room's 2 inside and outside walls and the front and rear cover plate 12,13, be one by the liquid volume of accurate measurement.
When movable scraping plate 6 and rotating shaft 3 rotated to Fig. 5 c, scraper plate C all fell into 6 li of scraper plate rooms, and movable scraping plate A, B still are in fully and annular measuring room's 2 outer walls join cuts state, along with being rotated further of rotating shaft 3, during to Fig. 5 d position, liquid between scraper plate A, the B is because B begins discharge, meanwhile; Scraper plate D begins to eject scraper plate room 6, begins to form the liquid volume by accurate measurement between scraper plate D and A.So constantly discharge and form, thereby reach the purpose that measured medium measures by the liquid volume of accurate measurement.
Claims (5)
1. an annular movable scraping plate flowmeter comprises main body, and along the forward and backward end cap and the liquid import and export be located at main body on of body shaft to setting; It is characterized in that also comprising:
Central rotating shaft, its front and back ends that is hubbed in the main body covers, and forms annular measuring room between central rotating shaft outer wall and main body inner wall;
A plurality of scraper plate rooms comprise and scrape post room and roller room; This is scraped the post room and alternately is arranged with on central rotating shaft with the axial lateral wall of this roller room along central rotating shaft;
A plurality of movable scraping plates, described scraper plate by scrape post and roller and with scrape the arc scraper plate that post links to each other with roller and form; This movable scraping plate axially is placed in respectively in a plurality of scraper plate rooms along central rotating shaft; Form the metric space of a fixed volume between two adjacent movable scraping plates and this annular measuring room and this forward and backward end cap;
The gateway guides is located between the liquid entrance of annular measuring room, and its thickness is less than or equal to the thickness of annular measuring room;
Wherein, the roller room in this two adjacent scraper plate room and scrape the arc length that minimum arc length between the post room equals the arc scraper plate of movable scraping plate.
2. annular movable scraping plate flowmeter as claimed in claim 1 is characterized in that the post of scraping of this movable scraping plate is fixed at and scrapes in the post room, its roller then can be along the inwall of annular measuring room sliding the rolling, and can close in the roller room.
3. annular movable scraping plate flowmeter as claimed in claim 1 it is characterized in that the thickness of the arc length of this movable scraping plate greater than this annular measuring room, and the radian of movable scraping plate equals the radian of the outer wall of central rotating shaft.
4. annular movable scraping plate flowmeter as claimed in claim 1, it is characterized in that this gateway guides cooperates with main body inner wall, the guides inwall is a disc, concentric with central rotating shaft, main body, guides liquid-inlet side is the wedge circular arc of feed liquor direction, and guides liquid outlet side is the wedge circular arc of fluid direction.
5. annular movable scraping plate flowmeter as claimed in claim 1 is characterized in that this flowmeter also comprises a plurality of push rods, radially is slidedly arranged in this central rotating shaft between the two scraper plate rooms corresponding to radial symmetry, and is used for this movable scraping plate of pushing tow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100344138A CN100389306C (en) | 2004-04-09 | 2004-04-09 | Flowmeter with movable annular scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100344138A CN100389306C (en) | 2004-04-09 | 2004-04-09 | Flowmeter with movable annular scraper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1680789A CN1680789A (en) | 2005-10-12 |
| CN100389306C true CN100389306C (en) | 2008-05-21 |
Family
ID=35067461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100344138A Expired - Fee Related CN100389306C (en) | 2004-04-09 | 2004-04-09 | Flowmeter with movable annular scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100389306C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697960A (en) * | 2013-12-25 | 2014-04-02 | 三正集团股份有限公司 | Flow meter scraper with magnetic adsorption structure |
| CN103697959A (en) * | 2013-12-25 | 2014-04-02 | 三正集团股份有限公司 | Elastic telescopic scraper flow meter |
| CN109013690A (en) * | 2018-07-11 | 2018-12-18 | 甘灿琼 | A kind of linkage pretreatment prosthetic device of contaminated soil |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87216916U (en) * | 1987-12-26 | 1988-09-14 | 重庆仪表厂 | Floating ring scrape flow meter |
| CN1058648A (en) * | 1990-08-02 | 1992-02-12 | 中国石化销售公司株洲石油储存研究所 | Volumetric scraper flowmeter |
| CN2154463Y (en) * | 1993-03-08 | 1994-01-26 | 大庆市技术监督局 | Doctor blade flowmeter for section |
| CN2508225Y (en) * | 2001-11-30 | 2002-08-28 | 应光文 | Positive displacement runner flowmeter |
| CN2684162Y (en) * | 2004-04-09 | 2005-03-09 | 寿焕根 | Ring form movable blade flowmeter |
-
2004
- 2004-04-09 CN CNB2004100344138A patent/CN100389306C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87216916U (en) * | 1987-12-26 | 1988-09-14 | 重庆仪表厂 | Floating ring scrape flow meter |
| CN1058648A (en) * | 1990-08-02 | 1992-02-12 | 中国石化销售公司株洲石油储存研究所 | Volumetric scraper flowmeter |
| CN2154463Y (en) * | 1993-03-08 | 1994-01-26 | 大庆市技术监督局 | Doctor blade flowmeter for section |
| CN2508225Y (en) * | 2001-11-30 | 2002-08-28 | 应光文 | Positive displacement runner flowmeter |
| CN2684162Y (en) * | 2004-04-09 | 2005-03-09 | 寿焕根 | Ring form movable blade flowmeter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1680789A (en) | 2005-10-12 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080521 Termination date: 20100409 |