CN103206994A - Coriolis flow meter and manufacturing method thereof - Google Patents
Coriolis flow meter and manufacturing method thereof Download PDFInfo
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- CN103206994A CN103206994A CN201210011447XA CN201210011447A CN103206994A CN 103206994 A CN103206994 A CN 103206994A CN 201210011447X A CN201210011447X A CN 201210011447XA CN 201210011447 A CN201210011447 A CN 201210011447A CN 103206994 A CN103206994 A CN 103206994A
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Abstract
The invention provides a Coriolis flow meter and a manufacturing method thereof. The Coriolis flow meter comprises an input unit which is provided with a fluid inlet and used for introducing a fluid in a fluid channel into the flow meter along the direction of the fluid inlet, and an output unit which is provided with a fluid outlet and used for draining the fluid out of the flow meter along the direction of the fluid outlet, wherein the included angle between the fluid inlet direction and the fluid outlet direction is larger than 0 degree and smaller than 180 degrees.
Description
Technical field
The present invention relates to the measurement of fluid flow field, relate in particular to a kind of coriolis flowmeter and its manufacture method.
Background technology
Advantages such as its accuracy of measurement height of coriolis meter, measurable flow body scope are wide have obtained using widely.For for simplicity, unless otherwise noted, " flowmeter " of hereafter also refers to coriolis flowmeter.
Usually, coriolis flowmeter can be divided into two parts by function: Sensor section and transmitter part.Sensor section is used for direct or indirect sensing fluid at the mobile suffered Coriolis force of measuring tube, and is converted into electric signal, sends to the transmitter part.Processor in the transmitter part will be combined with other parameter by the sensing result that Sensor section obtains, the flow of Fluid Computation, and result of calculation exported.For for simplicity, the transmitter part of not shown flowmeter in the appended Figure of description.
Fig. 1 is the synoptic diagram that the structure of the current coriolis flowmeter 100 that generally uses is shown.As shown in fig. 1, flowmeter 100 comprises that fluid importation 101 and fluid output part divide 103.Fluid importation 101 comprises that the guiding fluid enters the fluid inlet of flowmeter, and its direction illustrates with arrow 101d.Fluid output part divides 103 to comprise the guiding fluid from the inner outlet of discharging of flowmeter, and its direction illustrates with arrow 103d.As shown in fig. 1, fluid inlet direction 101d is identical with the direction of fluid egress point direction 103d.In other words, fluid inlet direction 101d and fluid egress point direction 103d between angle be 0 °.
Summary of the invention
The existing coriolis flowmeter of describing with reference to figure 1 can be arranged in the straight fluid channel easily.But this flowmeter can't directly apply to the corner of fluid passage.And, when the fluid passage has the turning, owing to have turning pressure drop and meter pressure drop simultaneously, make that the whole crushing of flow system is bigger.
The purpose of this invention is to provide a kind of coriolis flowmeter and its manufacture method, make this flowmeter can directly apply to the corner of fluid passage, and reduce the whole crushing of flow system.
One embodiment of the present of invention are a kind of coriolis flowmeters.This coriolis flowmeter comprises: have the input block of fluid inlet, be used for the direction introducing flowmeter with the fluid longshore current body import of fluid passage; And the output unit with fluid egress point, be used for the direction of fluid longshore current body outlet is discharged from flowmeter.The angle of the direction of fluid inlet and the direction of fluid egress point is greater than 0 ° and less than 180 °.
An alternative embodiment of the invention is a kind of method of making coriolis flowmeter.This coriolis flowmeter comprises the input block with fluid inlet, is used for the direction introducing flowmeter with the fluid longshore current body import of fluid passage; And the output unit with fluid egress point, be used for the direction of fluid longshore current body outlet is discharged from flowmeter.This method comprises: the structure coriolis flowmeter makes the angle of direction of the direction of fluid inlet and fluid egress point greater than 0 ° and less than 180 °.
When using embodiments of the invention, can determine the occurrence of α according to the corner angle of the fluid passage that will install.Thereby the angle of the direction of the fluid inlet by suitably arranging flowmeter and the direction of fluid egress point allows flowmeter to be directly installed on the corner of fluid passage, thereby effectively reduces the whole crushing of flow system.
Description of drawings
With reference to below in conjunction with the explanation of accompanying drawing to the embodiment of the invention, can understand above and other purpose of the present invention, characteristics and advantage more easily.In the accompanying drawings, technical characterictic or parts identical or correspondence will adopt identical or corresponding Reference numeral to represent.Needn't go out size and the relative position of unit in the accompanying drawings according to scale.
Fig. 1 is the synoptic diagram that the structure of the current coriolis flowmeter that generally uses is shown.
Fig. 2 is the synoptic diagram that illustrates according to the structure of the coriolis flowmeter of the embodiment of the invention.
Fig. 3 is the skeleton view that illustrates according to the Sensor section of the coriolis flowmeter of the embodiment of the invention.
Fig. 4 (a) and Fig. 4 (b) are coriolis flowmeters that prior art is shown respectively and synoptic diagram according to the installation situation of the flowmeter of the embodiment of the invention.
Embodiment
Embodiments of the invention are described with reference to the accompanying drawings.Should be noted that for purpose clearly, omitted expression and the description of parts that have nothing to do with the present invention, well known by persons skilled in the art and processing in accompanying drawing and the explanation.
In one embodiment of the invention, provide a kind of coriolis flowmeter, it comprises: have the input block of fluid inlet, be used for the direction introducing flowmeter with the fluid longshore current body import of fluid passage; And the output unit with fluid egress point, be used for the direction of fluid longshore current body outlet is discharged from flowmeter.Wherein, the angle of the direction of fluid inlet and the direction of fluid egress point is α, and 0 °＜α＜180 °.
The fluid of flow to be measured can but for example be liquid such as water, gasoline, former wet goods without restriction, perhaps such as the gas of rock gas, oxygen etc.Correspondingly, the fluid passage can but be the transfer canal that for example transmits water, gasoline etc. without restriction, or the major diameter Crude Oil Transportation pipe of remote conveying crude oil.Equally, the fluid passage also can but for example be the various pipelines of carrying such as rock gas, oxygen etc. without restriction.Certainly, the fluid passage also can be the non-enclosed pipeline such as water channel.
Angle α between the direction of the direction of the fluid inlet of input block and the fluid egress point of output unit can select between 180 ° at 0 °.
Specifically, can select the size of angle α according to the angle at known fluid passage turning.For example, when the turning of fluid passage was 60 °, 90 ° and 120 ° respectively, adaptably, the angle with the direction of the direction of the fluid inlet of flowmeter and fluid egress point was chosen as 60 °, 90 ° and 120 ° respectively.Obviously, when the turning of known fluid passage is other angle, also the angle α of the direction of the direction of the fluid inlet of flowmeter and fluid egress point can be chosen as 0 ° to 180 ° other angle in the scope.
Under or the situation about adapting identical in the angle at the fluid inlet direction of flowmeter and fluid egress point direction and turning, fluid passage, flowmeter can be directly installed on the corner of fluid passage.In this case, the turning pressure drop of fluid passage and the pressure drop of the flowmeter in the straight channel itself are replaced by independent meter pressure drop, thereby have reduced the pressure loss of total system.
More particularly, though according to the embodiment of the invention, fluid inlet direction and fluid egress point direction to flowmeter are set, make its angle α in 0 ° to 180 ° scope, but, angle α is 0 ° situation in the prior art, still can adopt habitual shape and structure according to the measuring tube (such as vibrating tube) of the flowmeter of the embodiment of the invention.Thereby, to compare with existing flowmeter according to the flowmeter of the embodiment of the invention, its pressure drop can't raise or significantly raise.Thereby, directly it is installed in fluid passage corner, not only eliminate the turning pressure drop, and do not caused the rising of other pressure drop, thereby made total crushing of system reduce.
Certainly, angle is 0 ° situation in the prior art, according to the flowmeter of the embodiment of the invention, the design of its measuring tube and shell etc. and layout also can be adapted to the setting of the angle of fluid inlet and fluid egress point, according to specifically using and design needs adjustment.Hereinafter will illustrate with reference to figure 3.
Coriolis flowmeter according to the embodiment of the invention can also comprise: such as the measuring tube of vibrating tube, for generation of Coriolis effect, so that can use the Coriolis principle to measure the flow of fluid; Sensing device is used for data such as sensing Coriolis force or moment of torsion directly or indirectly, and these data are converted into electric signal send data processor to; Data processor is used for the data that obtain from sensing device are handled, and based on the flow of known parameters Fluid Computation; Communicator is used for the flow rate calculation result is outputed to user side.In the accompanying drawings, for for simplicity, the assembly of not discussing in above-mentioned each assembly will be omitted.
In view of in current practical application, 90 ° turning, fluid passage is comparatively common, hereinafter, and the example in the time of will getting 90 ° referring to figs. 2 and 3 explanation α.
Fig. 2 be illustrate according to the embodiment of the invention, its fluid inlet direction and fluid egress point angular separation be the synoptic diagram of structure of 90 ° flowmeter 200.Flowmeter 200 comprises: have the input block 201 of fluid inlet, be used for direction (arrow 201d) the introducing flowmeter with the fluid longshore current body import of fluid passage; And the output unit 203 with fluid egress point, be used for the direction (arrow 203d) of fluid longshore current body outlet is discharged from flowmeter 200.Can visually see from Fig. 2, fluid inlet direction 201d is vertical with fluid egress point direction 203d.In other words, fluid inlet direction 201d becomes 90 ° with the angle α of fluid egress point direction 203d.
Fig. 3 is the skeleton view that schematically shows the entity of the flowmeter 300 corresponding with flowmeter shown in Figure 2 200.Input block 301 (dark part) is corresponding to the input block 201 of flowmeter 200.Output unit 303 (dark part) is corresponding to the output unit 203 of flowmeter 200.In the present embodiment, input block 301 and output unit 303 include the shunt of fluid being introduced each measuring tube respectively.As seen from Figure 3, the direction of the direction of the fluid inlet of input block 301 and the fluid egress point of output unit 303 is vertical substantially.
As shown in Figure 3, flowmeter 300 also comprises table body 302a, and is arranged at the measuring tube 302b such as vibrating tube among the table body 302a.In the embodiment according to Fig. 3, be suitable for 90 ° fluid inlet and fluid egress point angle, measuring tube 302b is configured to have into 90 ° bend.In addition, in this embodiment, table body 302a also is configured to have the bend of 90 ° of bendings.
Need to prove: measuring tube has into 90 ° bend, is preferred embodiment a kind of.The measuring tube of other shape, can satisfy requirement of the present invention equally such as U-shaped, S shape etc., angle between needing only fluid inlet and exporting becomes 90 °, or according to the fluid passage corner angle, as long as the angle between fluid inlet and the outlet is positioned at 0 ° to 180 ° scope.
Illustrate the situation of using double hose measuring tube (vibrating tube) among Fig. 3.Without restriction, also can use the single hose measuring tube, or the form of any measuring tube of this area use.
Hereinafter will be with reference to figure 4a and detailed installation site difference and the relative merits that compare according to flowmeter of the present invention and flowmeter of the prior art of Fig. 4 b.
Fig. 4 a and Fig. 4 b illustrate flowmeter of the prior art and synoptic diagram according to the installation situation of the coriolis flowmeter of the embodiment of the invention respectively.
The fluid inlet of traditional flowmeter and Way out point-blank, namely fluid inlet becomes 0 ° of angle with Way out.Thereby traditional flowmeter only is fit to be installed in the linear fluid passage.As shown in Fig. 4 a, when having the turning in the fluid passage, even desire is measured the rate of flow of fluid of corner, also flowmeter can only be installed in the straight channel at contiguous turning.In this case, the overall pressure drop of system (total crushing) is turning pressure drop ↓ P
The turningWith the pressure drop ↓ P of flowmeter own
MeterAnd.
Under the situation of use according to the flowmeter of the embodiment of the invention, owing to be (for example being 90 °) of making according to the angle at the turning of the fluid passage that will be applied to according to the angle of the fluid inlet of flowmeter of the present invention and Way out, so flowmeter can be directly installed on fluid passage corner, shown in Fig. 4 b.In this case, the overall pressure drop of system (total crushing) is the pressure drop ↓ P of this flowmeter itself only.Thereby total crushing of system has been lowered.
In another embodiment of the present invention, also provide a kind of method of making coriolis flowmeter mentioned above.This method comprises: the structure coriolis flowmeter, make that the angle of direction of fluid egress point of the direction of fluid inlet of input block and output unit is α, and 0 °＜α＜180 °.
Under the situation of the number of degrees of the angle of having determined fluid inlet and fluid egress point, can adopt this area habitual various building methods and manufacturing process to the structure of coriolis flowmeter with this angle.Those skilled in the art can select according to using and design needs.
The corner angle of the fluid passage of the fluid delivery system that the occurrence of α can will be applied to according to flowmeter is determined.Current, the fluid passage has 90 ° turning usually, thereby, during fabrication, the angle of the fluid egress point direction of the fluid inlet direction of the input block of flowmeter and output unit can be configured to 90 °.
Be adapted to the angle of fluid inlet direction and Way out alpha configured be 90 °, alternatively, the measuring tube for generation of Coriolis effect that comprises in the coriolis flowmeter can also be configured to comprise into 90 ° bend, what go out as shown in Figure 3 is such.
Be adapted to the different set of angle α, the measuring tube of flowmeter and shell etc. also can suitably be adjusted.This can be determined according to the design and use needs by those skilled in the art.
With reference to specific embodiment the present invention has been described in the instructions in front.Yet those of ordinary skill in the art understands, and can carry out various modifications and change under the prerequisite that does not depart from the scope of the present invention that limits as claims.
Claims (6)
1. coriolis flowmeter comprises:
Input block with fluid inlet is used for the fluid of fluid passage is introduced described flowmeter along the direction of described fluid inlet; And
Output unit with fluid egress point is used for fluid is discharged from described flowmeter along the direction of described fluid egress point;
Wherein, the angle of the direction of the direction of described fluid inlet and described fluid egress point is greater than 0 ° and less than 180 °.
2. coriolis flowmeter according to claim 1, wherein, the angle of the direction of described fluid inlet and the direction of described fluid egress point is 90 °.
3. coriolis flowmeter according to claim 2, wherein, described coriolis flowmeter comprises the measuring tube for generation of Coriolis effect, described measuring tube comprises into 90 ° bend.
4. method of making coriolis flowmeter, described coriolis flowmeter comprises the input block with fluid inlet, is used for the fluid of fluid passage is introduced described flowmeter along the direction of described fluid inlet; And the output unit with fluid egress point, being used for fluid is discharged from described flowmeter along the direction of described fluid egress point, described method comprises:
Construct described coriolis flowmeter, make the angle of direction of the direction of described fluid inlet and described fluid egress point greater than 0 ° and less than 180 °.
5. the method for manufacturing coriolis flowmeter according to claim 4, wherein, the angle of the direction of described fluid inlet and the direction of described fluid egress point is 90 °.
6. the method for manufacturing coriolis flowmeter according to claim 5 also comprises: construct described coriolis flowmeter, make its measuring tube for generation of Coriolis effect comprise into 90 ° bend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210011447.XA CN103206994B (en) | 2012-01-13 | 2012-01-13 | Coriolis flowmeter and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210011447.XA CN103206994B (en) | 2012-01-13 | 2012-01-13 | Coriolis flowmeter and its manufacture method |
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| Publication Number | Publication Date |
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| CN103206994A true CN103206994A (en) | 2013-07-17 |
| CN103206994B CN103206994B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210011447.XA Active CN103206994B (en) | 2012-01-13 | 2012-01-13 | Coriolis flowmeter and its manufacture method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2100606U (en) * | 1991-08-03 | 1992-04-01 | 陈建华 | Angular-rotation positive displacement flow meter |
| CN2265530Y (en) * | 1996-07-29 | 1997-10-22 | 黄佑仲 | Inlet and outlet angled flow sensor |
| US5969264A (en) * | 1998-11-06 | 1999-10-19 | Technology Commercialization Corp. | Method and apparatus for total and individual flow measurement of a single-or multi-phase medium |
| CN1335934A (en) * | 1999-10-29 | 2002-02-13 | 微动公司 | Coriolis flowmeter for large mass flows with reduced dimensions |
| CN1556916A (en) * | 2001-09-21 | 2004-12-22 | 恩德斯+豪斯流量技术股份有限公司 | Vibratory transducer |
| CN202582625U (en) * | 2012-01-13 | 2012-12-05 | 艾默生过程控制流量技术有限公司 | Coriolis flow meter |
-
2012
- 2012-01-13 CN CN201210011447.XA patent/CN103206994B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2100606U (en) * | 1991-08-03 | 1992-04-01 | 陈建华 | Angular-rotation positive displacement flow meter |
| CN2265530Y (en) * | 1996-07-29 | 1997-10-22 | 黄佑仲 | Inlet and outlet angled flow sensor |
| US5969264A (en) * | 1998-11-06 | 1999-10-19 | Technology Commercialization Corp. | Method and apparatus for total and individual flow measurement of a single-or multi-phase medium |
| CN1335934A (en) * | 1999-10-29 | 2002-02-13 | 微动公司 | Coriolis flowmeter for large mass flows with reduced dimensions |
| CN1556916A (en) * | 2001-09-21 | 2004-12-22 | 恩德斯+豪斯流量技术股份有限公司 | Vibratory transducer |
| CN202582625U (en) * | 2012-01-13 | 2012-12-05 | 艾默生过程控制流量技术有限公司 | Coriolis flow meter |
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| Publication number | Publication date |
|---|---|
| CN103206994B (en) | 2016-01-20 |
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