CN1213771A - Cone rotor positive displacement flowmeter - Google Patents
Cone rotor positive displacement flowmeter Download PDFInfo
- Publication number
- CN1213771A CN1213771A CN 97116977 CN97116977A CN1213771A CN 1213771 A CN1213771 A CN 1213771A CN 97116977 CN97116977 CN 97116977 CN 97116977 A CN97116977 A CN 97116977A CN 1213771 A CN1213771 A CN 1213771A
- Authority
- CN
- China
- Prior art keywords
- cone rotor
- cone
- rotor
- flowmeter
- fluid
- 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
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 18
- 239000012530 fluid Substances 0.000 claims abstract description 21
- 239000012535 impurity Substances 0.000 claims abstract description 17
- 238000005259 measurement Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 2
- 239000010779 crude oil Substances 0.000 abstract description 4
- 239000000295 fuel oil Substances 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The volumetric flowmeter with conic rotor is especially suitable for metering the flow rate of crude oil, heavy oil and other liquid containing more impurities. The rotor of the prior rotor positive displacement flowmeter such as a Roots flowmeter is a cylinder, the clearance between the rotors and a shell is fixed, and when impurities pass through the fluid, the rotors are easily blocked by the impurities and stop running. The invention changes the rotor and the shell of the prior rotor volume type flowmeter from a cylinder into a cone, when impurities in fluid pre-block the instrument to operate, the fluid generates larger axial force to the cone rotor, so that the cone rotor generates axial displacement, gaps between the cone rotors and between the cone rotor and the shell are enlarged, the impurities smoothly pass through, and the normal operation of the instrument is ensured.
Description
The present invention relates to cone rotor positive displacement flowmeter, it is specially adapted to the flow metering of impure more liquid, as the flow metering of crude oil, heavy oil.
Existing volumeter, as Roots type flowmeter, two rotors, many rotor displacement flowmeters etc., (solid of revolution in the volumeter is taken turns as the Roots in the Roots type flowmeter owing to its rotor.Rotor in two rotors, the many spinner-type flowmeters etc., below being referred to as rotor) shape is cylinder, so the gap (hereinafter to be referred as the instrument gap) between the rotor, between rotor and the housing is changeless, thereby in detected fluid, in case there is big more trash flow out-of-date, rotor will be blocked by impurity, and instrument is out of service.Make volumeter in the flow metering of measuring impure more crude oil, heavy oil, be subjected to very big obstacle.Instrument often occurs and phenomenon such as block.Can not extensively be used.
But the cone rotor positive displacement flowmeter that the purpose of this invention is to provide a kind of randomly changing volumeter instrument gap.In case when blocking rotor in advance to reach impurity in the detected fluid, the instrument gap can enlarge automatically, allows impurity pass through, with the purpose that guarantees that volumeter runs well.
The present invention is for realizing above-mentioned purpose, its technical solution is to change the rotor in the existing rotor displacement flowmeter into cone (to call cone rotor in the following text) by cylinder, and the surface of shell that cooperates with it also changes the cone surface identical with the cone rotor tapering into by cylinder simultaneously.The cone rotor of mutual rolling cut, its parallel axes, tapering equate, direction is opposite, are enclosed within on the armature spindle separately, axially can produce relative displacement with axle, but can not produce relative rotation at circumferencial direction and axle.Use the synchromesh gear transmission between the armature spindle, to guarantee relative drive connection between the cone rotor.Be pressed on the shaft shoulder of armature spindle with the spring end that the cone rotor cone is little simultaneously.On the end cap of the big end correspondence of cone rotor cone, be provided with a circular hole, this aperture flow valve is identical with the fluid cavity of housing, its axis and corresponding cone rotor dead in line, the big end maximum rotating diameter of diameter and cone rotor and be fixed on the ring washer equal diameters of this end of cone rotor.
Under the normal operation situation, the instrument gap is identical with existing volumeter of the same type, but when the bigger or more impurity of appearance blocks cone rotor in advance in the fluid to be measured, fluid produces bigger acting force to cone rotor, because the cone rotor outside surface is cone, fluid produces axial thrust load to cone rotor, this makes every effort to overcome the clothes spring force, promote cone rotor entering in the end cap circular hole to the big end generation displacement of cone on the armature spindle, make the instrument gap enlargement, allow impurity pass through.After impurity passed through, cone rotor was got back to original normal position running again under the effect of spring force.Often blocked by impurity thereby solved volumeter, a difficult problem out of service can be widely used in the flow metering of impure more crude oil, heavy oil etc. volumeter.
A pair of the present invention describes in further detail below with reference to accompanying drawing.
Accompanying drawing one: the longitudinal sectional drawing that is cone rotor positive displacement flowmeter of the present invention.
With reference to accompanying drawing one, cone rotor positive displacement flowmeter measurement chamber part is made up of housing (1), cone rotor (2), (3), armature spindle (4), (5), spring (6), (7), end cap (11), (14), key (12), (15), ring washer (10), (13), synchromesh gear (8), (9), flow valve (16).
Under the normal operation situation, detected fluid flows into measurement chamber by housing (1) import (accompanying drawing one dashed centre line circle place), promoting cone rotor (2) rotation rotates cone rotor (3) through key (15), armature spindle (4), synchromesh gear (8), (9), armature spindle (5), key (12), flow to housing (1) outlet, the revolution of cone rotor (2) is directly proportional with the flow of fluid to be measured, measures this revolution and can record fluid flow.
When contain in the fluid bigger or more impurity enter between cone rotor (2), (3) or cone rotor (2), (3) and housing (1), end cap (11), (14) between the time, because impurity makes cone rotor (2), (3) stop operating in advance, make fluid flow impedes, thereby increased the acting force of fluid to cone rotor (2), (3), the axial thrust load of this power acts on the cone rotor conical surface, overcome the elastic force of spring (6), (7), make cone rotor (2), (3) go up the axial displacement that produces to the big extreme direction of cone in armature spindle (4), (5) respectively.Cone rotor (2) enters in the circular hole of end cap (11) together with ring washer (10) simultaneously, cone rotor (3) enters in end cap (14) circular hole together with ring washer (13), the liquid in circular hole (11), (14) through the liquid hole, flow valve (16) flow back in the fluid cavity of housing (1).Because cone rotor (2) and cone rotor (3) tapering equate, direction is opposite, radial play is between the two enlarged; The radial play of cone rotor (2), (3) and housing (1) is enlarged and the end play of end cap (11), (14) enlarges,, impurity is passed through smoothly in the gap that has enlarged even the instrument gap all obtains enlarging, by fluid for to outlet.After impurity passed through, fluid recovered normal to the acting force of cone rotor (2), (3), gets back to original position under the elastic force effect of spring (6), (7), reaches automatic despumation, guarantees the purpose of the normal operation of instrument.
Claims (5)
1, the cone rotor formula volume-displacement of forming by housing (1) cone rotor (2), (3), armature spindle (4), (5), spring (6), (7), key (12), (15), end cap (11), (14), flow valve (16), the cone rotor (2), (3) that it is characterized in that it are cone, the housing of Pei Heing (1) surface also is cone with it, its tapering size, direction and cone rotor tapering size, direction are identical, cone rotor (2), (3) are rolling cut mutually, its parallel axes, tapering equates that direction is opposite.
2, according to right 1 described cone rotor positive displacement flowmeter, its feature also is cone rotor (2), (3) in the measurement chamber, when fluid impurity blocks cone rotor in advance, fluid produces larger axis to power to cone rotor (2), (3), overcome the elastic force of spring (6), (7), it is gone up at armature spindle (4), (5) produce the opposite displacement of direction, enlarged the gap between gap between cone rotor (2), (3) and cone rotor (2), (3) and housing (1), end cap (11), (14).
3, according to right 1 described cone rotor positive displacement flowmeter, its feature also is on the end cap (11), (14) in the measurement chamber circular hole is arranged, its axis and corresponding cone rotor (2), (3) dead in line, diameter is equal with the corresponding big end maximum rotating diameter of cone rotor.
4, according to right 1 described cone rotor positive displacement flowmeter, its feature is that also the big end of its cone rotor cone fixes a ring washer, and its diameter equates with the corresponding big end maximum rotating diameter of cone rotor.
5, according to right 1 described cone rotor flowmeter, its feature also is to communicate through flow valve (16) between the fluid cavity of the circular hole on end cap (11), (14) and housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97116977 CN1213771A (en) | 1997-10-08 | 1997-10-08 | Cone rotor positive displacement flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97116977 CN1213771A (en) | 1997-10-08 | 1997-10-08 | Cone rotor positive displacement flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1213771A true CN1213771A (en) | 1999-04-14 |
Family
ID=5174251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97116977 Pending CN1213771A (en) | 1997-10-08 | 1997-10-08 | Cone rotor positive displacement flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1213771A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112539787A (en) * | 2020-11-25 | 2021-03-23 | 浙江威盾机械科技有限公司 | Flow meter |
-
1997
- 1997-10-08 CN CN 97116977 patent/CN1213771A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112539787A (en) * | 2020-11-25 | 2021-03-23 | 浙江威盾机械科技有限公司 | Flow meter |
| CN112539787B (en) * | 2020-11-25 | 2024-01-30 | 浙江威盾机械科技有限公司 | Flowmeter for measuring flow rate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |