CN106248158B - A kind of range changing Coriolis flowmeter and range changing method - Google Patents
A kind of range changing Coriolis flowmeter and range changing method Download PDFInfo
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- CN106248158B CN106248158B CN201610782790.2A CN201610782790A CN106248158B CN 106248158 B CN106248158 B CN 106248158B CN 201610782790 A CN201610782790 A CN 201610782790A CN 106248158 B CN106248158 B CN 106248158B
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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
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/84—Coriolis or gyroscopic mass flowmeters
- G01F1/845—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits
- G01F1/8468—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits
-
- 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
- G01F15/005—Valves
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention belongs to automatic Measurement Technology for Tri fields, specifically, disclosing a kind of range changing coriolis force flowmeter and range changing method.The range changing Coriolis flowmeter includes measurement pipe, electromagnetic signal detector, driver；Measurement pipe and isocon are distributed in the section rings week of tubular current divider.The circulation area of measurement pipe, crushing are identical with the circulation area of isocon, crushing, identical with the flow flowed through under pressure.The number of isocon can be one or more, be symmetrically or non-symmetrically, to meet under the same pressure, it is consistent with the flow of isocon to flow through measurement pipe in form.Presently disclosed range changing coriolis force flowmeter and range changing method can meet the measurement under user's different flow under conditions of user's not undergauge, while relatively small-bore flowmeter can survey the mass flow of super large caliber.Installation dimension is small in structure, is easily installed, while greatly reducing the weight of product, saves transportation cost and material cost.
Description
Technical field
The invention belongs to automatic Measurement Technology for Tri fields, specifically, disclosing a kind of range changing Coriolis flowmeter
And range changing method.
Background technique
Flow measurement is one of the component part of measuring science technology, it has with national economy, national defense construction, scientific research
Close relationship, to guarantee product quality, improve production efficiency, the development for the technology that advances science all plays an important role, special
It is not the current era higher and higher in energy crisis, industrial production automation degree, status of the flowmeter in national economy
It is more obvious with acting on.
Flowmeter be used to indicate measured flux and (or) in selected time interval fluid total volume instrument, in simple terms
Exactly for measuring a kind of instrument of fluid flow in pipeline or open channel.The volume of fluid is the function of fluid temperature (F.T.) and pressure,
A dependent variable, and the quality of fluid be one not at any time, the variation of space temperature, pressure and the amount changed.Flowmeter
It is widely used in every field, for example, field of industrial production, flow instrument is the major class instrument in process automation instrument and device
One of table, it be widely used in metallurgy, electric power, coal, chemical industry, petroleum, traffic, building, light textile, food, medicine, agricultural,
The national economy every field such as environmental protection and people's daily life is to develop industrial and agricultural production, energy saving, improves product matter
Amount, increases economic efficiency and occupies an important position in national economy with the important tool of management level.
The stream involved in the activity such as scientific research, production process control, quality management, business accounting and trade transaction
The scale of construction is generally mostly quality.Generally, mass flowmenter can be divided into two classes: one kind is direct-type, i.e., directly exports mass flow；Separately
One kind is indirect type or derives formula, such as applies ultrasonic flowmeter and density meter combination, carries out multiplying again to their output
To obtain mass flow.
In numerous mass flowmenters, coriolis mass flowmeters (abbreviation coriolis force flowmeter) are a kind of using fluid
The principle for flowing in vibrating tube and generating the Coriolis force directly proportional to mass flow directly measures the instrument of mass flow
Table.There are many forms for coriolis force flowmeter structure, are generally made of vibrating tube and converter.Vibrating tube (measurement pipeline) is sensitive
Device has several shapes such as U-shaped, Ω shape, annular, Straight and spiral shape, also has using the modes such as two-tube, but basic principle phase
Together.Coriolis force flowmeter is that the current closed conduct fluid media (medium) that solves measures preferable solution, can direct measuring medium
Density of mass flux and temperature and precision height, but existing coriolis force flowmeter cannot be used for the flow measurement of Large Diameter Pipeline, separately
Outside, most of coriolis force flowmeter has biggish volume and weight, and the pressure loss is larger, that is, have range low and fixed and
The shortcomings that inconvenience changes.
Summary of the invention
In view of the above-mentioned problems, the present invention discloses a kind of range changing coriolis force flowmeter and range changing methods.
A kind of range changing Coriolis flowmeter, which is characterized in that including measurement pipe 3, electromagnetic signal detector 5 and 6,
Electromagnetic driver 7；Measurement pipe 3 and isocon are distributed in the section rings week of tubular current divider 1.
Optionally, in the range changing Coriolis flowmeter, which is characterized in that circulation area, the pressure of measurement pipe 3
Damage is identical with the circulation area of isocon, crushing, identical with the flow flowed through under pressure.
Optionally, in the range changing Coriolis flowmeter, which is characterized in that the number of isocon can be one
It is a or multiple, it is symmetrically or non-symmetrically, to meet under the same pressure, flow through the flow one of measurement pipe 3 and isocon in form
It causes.
Optionally, in the range changing Coriolis flowmeter, which is characterized in that be provided with tune stream in measurement pipe 3
Valve 4.
Optionally, in the range changing Coriolis flowmeter, which is characterized in that flow regulating valve 4 is hand-operated valve, electronic
Any one in valve or pneumatic operated valve, wherein in the case where application motor-driven valve or pneumatic operated valve, realize range changing operation from
Dynamicization.
Optionally, in the range changing Coriolis flowmeter, which is characterized in that the form knot of the measurement pipe 3
Structure is any one in U-shaped, Ω shape, annular, Straight, spiral shape or two-tube form.
A kind of coriolis force flowmeter range changing method, which is characterized in that range changing Coriolis flowmeter is used, it is described
Range changing Coriolis flowmeter includes measurement pipe 3, electromagnetic signal detector 5 and 6, driver 7；Measurement pipe 3 and isocon
It is distributed in the section rings week of tubular current divider 1；It cannot meet in measurement pipe itself the work range of coriolis force flowmeter and pass through Jie
When the traffic requirement of matter, flow is adjusted as desired by the quantity that isocon opens or closes is changed, is detected using measurement pipe
The mass of medium flow in measurement pipe is flowed through, and amplification factor is determined according to the isocon number of unlatching, eventually by entire meter
The mass flow of equipment is measured as by the product of measurement pipe mass of medium flow and amplification factor.
Optionally, in the coriolis force flowmeter range changing method, which is characterized in that the circulation area of measurement pipe 3, crushing
It is identical with the circulation area of isocon, crushing, it is identical with the flow flowed through under pressure；The number of isocon can be one or more
It is a, it is symmetrically or non-symmetrically, to meet under the same pressure, it is consistent with the flow of isocon to flow through measurement pipe 3 in form.
Optionally, in the coriolis force flowmeter range changing method, which is characterized in that be provided with flow regulating valve in measurement pipe 3
4, flow regulating valve 4 is any one in hand-operated valve, motor-driven valve or pneumatic operated valve, wherein in the feelings of application motor-driven valve or pneumatic operated valve
Under condition, the automation of range changing operation is realized.
Optionally, in the coriolis force flowmeter range changing method, which is characterized in that the form structure of the measurement pipe 3
It is any one in U-shaped, Ω shape, annular, Straight, spiral shape or two-tube form.
Presently disclosed range changing coriolis force flowmeter and range changing method can expire under conditions of user's not undergauge
Measurement under sufficient user's different flow, while relatively small-bore flowmeter can survey the mass flow of super large caliber.In structure
Installation dimension is small, is easily installed, while greatly reducing the weight of product, saves transportation cost and material cost.
Detailed description of the invention
Attached drawing 1 is the front view of range changing coriolis force flowmeter in the embodiment of the present invention, wherein visible removal Coriolis force flow
Internal structure after the part enclosure of meter.
Attached drawing 2 is the side view of range changing coriolis force flowmeter in the embodiment of the present invention.
Description of symbols:
Current divider -1, procedural interface -2, measurement pipe -3, flow regulating valve -4, electromagnetic signal detector -5, electromagnetic signal detection
Device -6, electromagnetic driver -7, frame body -8, four isocons-(F1-F4).
Specific embodiment
Combined with specific embodiments below with attached drawing to a kind of range changing coriolis force flowmeter of the present invention and range changing
Method is described further, but the scope of protection of the present invention is not limited thereto.
Coriolis principle is applied to the basic principle of run-of-the-mill flowmeter are as follows: mass flowmenter allows measured fluid
By the measurement pipe in a rotation or vibration, the flowing of fluid in the duct is equivalent to linear motion, the rotation of measurement pipe
Or vibration can generate an angular speed, due to rotating or vibrating driven by additional electromagnetic field, there is fixed frequency, because
And the Coriolis force that fluid is subject in the duct is only related with its quality and movement velocity, and quality and movement velocity, that is, flow velocity
Product be exactly to need the mass flow that measures, thus the Coriolis force being subject in the duct by measuring fluid can
Measure its mass flow.
General coriolis force flowmeter range is fixed, and can not flexibly be amplified, be caused to surpass when encountering fluids within pipes increased flow capacity
After range, in order to continue to measure and flow measurement be avoided to damage, can only be replaced, and coriolis force flow measurement due to belong to compared with
Accurate measuring equipment, repeatedly disassembly easily causes the precision decline or damage of internal part, thus, it is necessary to existing section
Family name's power flow measurement improves, so as to adapt to product or flow needs to change range, and then cuts operating costs, mentions
High working efficiency.
The present invention changes the basic principle for realizing that coriolis force flowmeter range changes are as follows: according to the principle of similitude in hydrodynamics
Geometric similarity, kinematic similitude, dynamic similarity principle, organically combined with Coriolis principle, using current divider to flowing through Coriolis
The fluid of force flow meter carries out proportional diverting, then carries out ratio enlargement according to the metric results of coriolis force flowmeter, and then obtain
Higher it must pass through flow and metric results.
So that the circulation area of measurement pipe, crushing are identical with the circulation area of isocon (similar pipe), crushing, under pressure
The flow that they flow through be it is the same, by changing isocon (similar pipe) quantity for opening or closing with regard to flow rate adjustable.It surveys
Buret and isocon are evenly distributed in the section rings week of tubular current divider.Unlatching quantity by changing isocon determines that pipe is current
Effective discharge measurement range.The mass of medium flow in measurement pipe is flowed through using measurement pipe detection, and according to the isocon of unlatching
Number determines amplification factor, i.e., eventually by the mass flow of entire measuring equipment be by measurement pipe mass of medium flow with put
The product of big multiple.Media density is detected by measurement vibration frequency, is detected and is situated between by the temp probe installed outside measurement pipe
Matter temperature.
Range changing coriolis force flowmeter
Attached drawing 1 is the front view of range changing coriolis force flowmeter in the embodiment of the present invention, wherein visible removal Coriolis force flow
Internal structure after the part enclosure of meter.As shown in figure 1, by removing the partially visible of shell, the measurement of coriolis force flowmeter
Pipe 3, electromagnetic signal detector 5 and detector 6 and electromagnetic driver 7.Driver 7 is that measurement pipe 3 provides vibration, electromagnetic signal inspection
Survey device 5 and detector 6 detect measurement tube vibration when medium fluid flows through measurement pipe, pass through the phase difference for detecting signal, the phase
The size of potential difference is directly proportional to flow through the mass flow of flowtube, carries out digital processing to phase difference, is used for after filtering noise reduction
Calculate mass flow.As seen in Figure 1, the Coriolis flowmeter structure to current divider 1 and above of frame body 8 formed support and
It is fixed.
Attached drawing 2 is the side view of range changing coriolis force flowmeter in the embodiment of the present invention.As shown in Figure 2,3 He of measurement pipe
Isocon (F1-F4) is evenly distributed in the section rings week of tubular current divider.Circulation area, crushing and the isocon of measurement pipe 3
(F1-F4) circulation area, crushing are identical, i.e., measurement pipe and isocon are similar pipes, identical with the flow flowed through under pressure.?
When the measurement pipe of coriolis force flowmeter itself work range cannot meet the traffic requirement by medium, as desired by opening
Or close flow regulating valve 4 and change the quantity adjustment flow that isocon opens or closes, fluid flows into flowmeter from procedural interface left end,
Measurement pipe 3 and isocon are flowed through simultaneously, flows through the mass of medium flow in measurement pipe using measurement pipe detection, and according to unlatching
Isocon number determines amplification factor, i.e., is to pass through measurement pipe mass of medium stream eventually by the mass flow of entire measuring equipment
The product of amount and amplification factor.
It should be appreciated that the design of four symmetrical flow division pipes is example in attached Fig. 1 and 2, it can be enterprising in quantity and form
Row variation, for example, the number of separating pipe can be eight, can be symmetrically or non-symmetrically, in form as long as can satisfy
Under same pressure, it is consistent with the flow of isocon to flow through measurement pipe.
It should be appreciated that the design of 4 manual form of flow regulating valve is example in attached Fig. 1 and 2, motor-driven valve either gas can be
Dynamic valve.Especially, it can be achieved that the automation of range changing operation in the case where application motor-driven valve and pneumatic operated valve.
It should be appreciated that the shunting principle range changing in the present invention can be applied to the coriolis force flowmeter of form of ownership, for example,
But be not limited to, U-shaped, Ω shape, annular, Straight, spiral shape and two-tube form structure coriolis force flowmeter.
A kind of coriolis force flowmeter range changing method
Coriolis force flowmeter connection such as the current divider in Fig. 1 and 2, as shown in Figure 2, measurement pipe 3 and isocon (F1-F4)
It is evenly distributed in the section rings week of tubular current divider.The circulating face of the circulation area of measurement pipe 3, crushing and isocon (F1-F4)
Product, crushing are identical, identical with the flow flowed through under pressure.It cannot meet in measurement pipe itself the work range of coriolis force flowmeter
When by the traffic requirement of medium, change the quantity that isocon opens or closes as desired by flow regulating valve 4 is opened or closed
Flow is adjusted, flows through the mass of medium flow in measurement pipe using measurement pipe detection, and determine according to the isocon number of unlatching
Amplification factor is by measurement pipe mass of medium flow and amplification factor eventually by the mass flow of entire measuring equipment
Product.
It should be appreciated that the design of four symmetrical flow division pipes is example, can be changed in quantity and in form, example
Such as, the number of separating pipe can be eight, can be symmetrically or non-symmetrically in form, as long as can satisfy in same pressure
Under, it is consistent with the flow of isocon to flow through measurement pipe.The design of 4 manual form of flow regulating valve is example, be can be electronic
Valve either pneumatic operated valve.Especially, it can be achieved that the automation of range changing operation in the case where application motor-driven valve and pneumatic operated valve.
Presently disclosed shunting principle range changing method can be applied to the coriolis force flowmeter of form of ownership, such as, but not limited to,
U-shaped, Ω shape, annular, Straight, spiral shape and two-tube form structure coriolis force flowmeter.
Above-mentioned range changing coriolis force flowmeter and range changing method can meet user's difference under conditions of user's not undergauge
Measurement under flow, while relatively small-bore flowmeter can survey the mass flow of super large caliber.Installation dimension is small in structure,
It is easily installed, while greatly reducing the weight of product, save transportation cost and material cost.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from
In the case where mind and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (9)
1. a kind of range changing Coriolis flowmeter, which is characterized in that including measurement pipe (3), electromagnetic signal detector (5,
6), electromagnetic driver (7)；Measurement pipe (3) and isocon are distributed in the section rings week of tubular current divider (1), and measurement pipe is set on (3)
It is equipped with flow regulating valve (4).
2. according to range changing Coriolis flowmeter described in claim 1, which is characterized in that the circulating face of measurement pipe (3)
Product, crushing are identical with the circulation area of isocon, crushing, identical with the flow flowed through under pressure.
3. according to range changing Coriolis flowmeter described in claim 2, which is characterized in that the number of isocon is one
Or it is multiple, it is symmetrically or non-symmetrically, to meet under the same pressure, flow through the flow one of measurement pipe (3) and isocon in form
It causes.
4. according to range changing Coriolis flowmeter described in claim 1, which is characterized in that flow regulating valve (4) be hand-operated valve,
Any one in motor-driven valve or pneumatic operated valve, wherein in the case where application motor-driven valve or pneumatic operated valve, realize range changing operation
Automation.
5. according to range changing Coriolis flowmeter described in claim 1, which is characterized in that the shape of the measurement pipe (3)
Formula structure is any one in U-shaped, Ω shape, annular, Straight, spiral shape or two-tube form.
6. a kind of Coriolis flowmeter range changing method, which is characterized in that use range changing Coriolis flowmeter, institute
Stating range changing Coriolis flowmeter includes measurement pipe (3), electromagnetic signal detector (5,6), electromagnetic driver (7)；Measurement
Pipe (3) and isocon are distributed in the section rings week of tubular current divider (1)；In measurement pipe itself the work range of coriolis force flowmeter
When not being able to satisfy the traffic requirement by medium, flow is adjusted as desired by the quantity that isocon opens or closes is changed,
The mass of medium flow in measurement pipe is flowed through using measurement pipe detection, and amplification factor is determined according to the isocon number of unlatching,
Mass flow eventually by entire measuring equipment is the product by measurement pipe mass of medium flow and amplification factor.
7. according to Coriolis flowmeter range changing method described in claim 6, which is characterized in that the stream of measurement pipe (3)
Logical area, crushing are identical with the circulation area of isocon, crushing, identical with the flow flowed through under pressure；The number of isocon is
One or more is symmetrically or non-symmetrically, to meet under the same pressure, flow through the stream of measurement pipe (3) and isocon in form
Amount is consistent.
8. according to Coriolis flowmeter range changing method described in claim 7, which is characterized in that measurement pipe is set on (3)
It is equipped with flow regulating valve (4), flow regulating valve (4) is any one in hand-operated valve, motor-driven valve or pneumatic operated valve, wherein electronic in application
In the case where valve or pneumatic operated valve, the automation of range changing operation is realized.
9. according to Coriolis flowmeter range changing method described in claim 6, which is characterized in that the measurement pipe (3)
Form structure be any one in U-shaped, Ω shape, annular, Straight, spiral shape or two-tube form.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610782790.2A CN106248158B (en) | 2016-08-31 | 2016-08-31 | A kind of range changing Coriolis flowmeter and range changing method |
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| CN201610782790.2A CN106248158B (en) | 2016-08-31 | 2016-08-31 | A kind of range changing Coriolis flowmeter and range changing method |
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| CN107478283A (en) * | 2017-08-21 | 2017-12-15 | 徐文斌 | A kind of Multifunctional oil-pipe flow detector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789925A (en) * | 2005-12-15 | 2006-06-21 | 北京航空航天大学 | Bent tube type Coriolis mass flow transducer with function of suppressing inside coupling vibration |
| CN101979965A (en) * | 2010-09-17 | 2011-02-23 | 烟台中隆仪表有限公司 | Tube bundle Coriolis mass flow meter |
| CN103620351A (en) * | 2011-05-02 | 2014-03-05 | 恩德斯+豪斯流量技术股份有限公司 | Vibration-type measuring sensor and measuring system formed therewith |
| JP2014531042A (en) * | 2011-10-26 | 2014-11-20 | マイクロ モーション インコーポレイテッド | Vibrating flow meter juxtaposed sensor |
| CN206019741U (en) * | 2016-08-31 | 2017-03-15 | 烟台中隆仪表有限公司 | A kind of range changing Coriolis flowmeter |
-
2016
- 2016-08-31 CN CN201610782790.2A patent/CN106248158B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789925A (en) * | 2005-12-15 | 2006-06-21 | 北京航空航天大学 | Bent tube type Coriolis mass flow transducer with function of suppressing inside coupling vibration |
| CN101979965A (en) * | 2010-09-17 | 2011-02-23 | 烟台中隆仪表有限公司 | Tube bundle Coriolis mass flow meter |
| CN103620351A (en) * | 2011-05-02 | 2014-03-05 | 恩德斯+豪斯流量技术股份有限公司 | Vibration-type measuring sensor and measuring system formed therewith |
| JP2014531042A (en) * | 2011-10-26 | 2014-11-20 | マイクロ モーション インコーポレイテッド | Vibrating flow meter juxtaposed sensor |
| CN206019741U (en) * | 2016-08-31 | 2017-03-15 | 烟台中隆仪表有限公司 | A kind of range changing Coriolis flowmeter |
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Effective date of registration: 20190107 Address after: 116051 Northeast Mountain Village, Longtou Street, Lushunkou District, Dalian City, Liaoning Province Applicant after: Dalian Corio Instrument Co.,Ltd. Applicant after: YANTAI ZHONGLONG INSTRUMENT Co.,Ltd. Address before: 265500 Songxia Road 189, Fushan District, Yantai City, Shandong Province Applicant before: YANTAI ZHONGLONG INSTRUMENT Co.,Ltd. |
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Effective date of registration: 20240131 Address after: No. 191 Wangbai Road, Xiangfu District, Kaifeng City, Henan Province, 475000 Patentee after: Zhonglong Feitian Instrument (Kaifeng) Co.,Ltd. Country or region after: China Address before: 116051 Northeast Mountain Village, Longtou Street, Lushunkou District, Dalian City, Liaoning Province Patentee before: Dalian Corio Instrument Co.,Ltd. Country or region before: China Patentee before: YANTAI ZHONGLONG INSTRUMENT Co.,Ltd. |
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Effective date of registration: 20240315 Address after: 265500 Songxia Road 189, Fushan District, Yantai City, Shandong Province Patentee after: YANTAI ZHONGLONG INSTRUMENT Co.,Ltd. Country or region after: China Address before: No. 191 Wangbai Road, Xiangfu District, Kaifeng City, Henan Province, 475000 Patentee before: Zhonglong Feitian Instrument (Kaifeng) Co.,Ltd. Country or region before: China |