CN103206994B - Coriolis flowmeter and its manufacture method - Google Patents
Coriolis flowmeter and its manufacture method Download PDFInfo
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- CN103206994B CN103206994B CN201210011447.XA CN201210011447A CN103206994B CN 103206994 B CN103206994 B CN 103206994B CN 201210011447 A CN201210011447 A CN 201210011447A CN 103206994 B CN103206994 B CN 103206994B
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Abstract
A kind of coriolis flowmeter and its manufacture method are provided.Coriolis flowmeter comprises: the input block with fluid inlet, for the fluid in fluid passage is introduced flowmeter along the direction of fluid inlet; And there is the output unit of fluid egress point, for being discharged from flowmeter in the direction of fluid along fluid egress point; Wherein, the angle in the direction of fluid inlet and the direction of fluid egress point is greater than 0 ° and is less than 180 °.
Description
Technical field
The present invention relates to measurement of fluid flow field, particularly relate to a kind of coriolis flowmeter and its manufacture method.
Background technology
The advantages such as its accuracy of measurement of coriolis meter is high, measurable flow body scope is wide are widely used.For simplicity, unless otherwise noted, " flowmeter " that be hereinafter called for short also refers to coriolis flowmeter.
Usually, coriolis flowmeter can be divided into two parts by function: Sensor section and transducer portion.Sensor section is used for directly or indirectly sensing fluid and flows in measuring tube suffered Coriolis force, and is converted into electric signal, sends to transducer portion.The sensing result obtained by Sensor section combines with other parameter by the processor in transducer portion, the flow of Fluid Computation, and result of calculation is exported.For simplicity, the transducer portion of not shown flowmeter in appended Figure of description.
Fig. 1 is the schematic diagram of the structure that the current coriolis flowmeter 100 generally used is shown.As shown in fig. 1, flowmeter 100 comprises fluid importation 101 and fluid output part divides 103.Fluid importation 101 comprises the fluid inlet guiding fluid to enter flowmeter, and its direction illustrates with arrow 101d.Fluid output part divides 103 to comprise the outlet of guiding fluid from the discharge of flowmeter inside, 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, the angle between fluid inlet direction 101d and fluid egress point direction 103d is 0 °.
Summary of the invention
The existing coriolis flowmeter described with reference to figure 1 can be arranged in straight fluid channel easily.But this flowmeter cannot directly apply to the corner of fluid passage.Further, when fluid passage has turning, owing to there is turning pressure drop and meter pressure drop simultaneously, make the overall crushing of flow system larger.
The object 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 overall crushing of flow system.
One embodiment of the present of invention are a kind of coriolis flowmeters.This coriolis flowmeter comprises: the input block with fluid inlet, for the fluid in fluid passage is introduced flowmeter along the direction of fluid inlet; And there is the output unit of fluid egress point, for being discharged from flowmeter in the direction of fluid along fluid egress point.The angle in the direction of fluid inlet and the direction of fluid egress point is greater than 0 ° and is less than 180 °.
An alternative embodiment of the invention is a kind of method manufacturing coriolis flowmeter.This coriolis flowmeter comprises the input block with fluid inlet, for the fluid in fluid passage is introduced flowmeter along the direction of fluid inlet; And there is the output unit of fluid egress point, for being discharged from flowmeter in the direction of fluid along fluid egress point.The method comprises: structure coriolis flowmeter, makes the angle in the direction of fluid inlet and the direction of fluid egress point be greater than 0 ° and be less than 180 °.
When applying embodiments of the invention, the occurrence of α can be determined according to the corner angle of the fluid passage that will install.Thus by the angle in the direction in the direction and fluid egress point of suitably arranging the fluid inlet of flowmeter, permissible flow meter is directly installed on the corner of fluid passage, thus effectively reduce the overall crushing of flow system.
Accompanying drawing explanation
Below with reference to the accompanying drawings illustrate embodiments of the invention, above and other objects, features and advantages of the present invention can be understood more easily.In the accompanying drawings, the identical or corresponding Reference numeral of employing represents by the technical characteristic of identical or correspondence or parts.Size and the relative position of unit need not be gone out in the accompanying drawings according to scale.
Fig. 1 is the schematic diagram of the structure that the current coriolis flowmeter generally used is shown.
Fig. 2 is the schematic diagram of the structure of the coriolis flowmeter illustrated according to the embodiment of the present invention.
Fig. 3 is the skeleton view of the Sensor section of the coriolis flowmeter illustrated according to the embodiment of the present invention.
Fig. 4 (a) and Fig. 4 (b) illustrates the coriolis flowmeter of prior art and the schematic diagram according to the installation situation of the flowmeter of the embodiment of the present invention respectively.
Embodiment
With reference to the accompanying drawings embodiments of the invention are described.It should be noted that for purposes of clarity, accompanying drawing and eliminate expression and the description of unrelated to the invention, parts well known by persons skilled in the art and process in illustrating.
In one embodiment of the invention, provide a kind of coriolis flowmeter, it comprises: the input block with fluid inlet, for the fluid in fluid passage is introduced flowmeter along the direction of fluid inlet; And there is the output unit of fluid egress point, for being discharged from flowmeter in the direction of fluid along fluid egress point.Wherein, the angle in the direction of fluid inlet and the direction of fluid egress point is α, and 0 ° of < α < 180 °.
The fluid of flow to be measured can but be such as the liquid of such as water, gasoline, crude oil etc. without restriction, or the gas of such as rock gas, oxygen etc.Correspondingly, fluid passage can but be the transfer canal such as transmitting water, gasoline etc. without restriction, or the major diameter Crude Oil Transportation pipe of long-distance sand transport crude oil.Equally, fluid passage also can but be such as the various pipelines carrying such as rock gas, oxygen etc. without restriction.Certainly, fluid passage also can be the non-enclosed pipeline of 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, the size of selected angle α can be carried out according to the angle at known fluid passage turning.Such as, when the turning of fluid passage be respectively 60 °, 90 ° and 120 ° time, adaptably, respectively the angle in the direction of the fluid inlet of flowmeter and the direction of fluid egress point is chosen as 60 °, 90 ° and 120 °.Obviously, when the turning of known fluid passage is other angle, also the angle α in the direction of the direction of the fluid inlet of flowmeter and fluid egress point can be chosen as 0 ° to other angle within the scope of 180 °.
When the fluid inlet direction of flowmeter is identical with the angle at turning, fluid passage with fluid egress point direction or when adapting, flowmeter can be directly installed on the corner of fluid passage.In this case, the pressure drop of the flowmeter in the turning pressure drop of fluid passage and straight channel itself replace by independent meter pressure drop, thus reduce the pressure loss of whole system.
More particularly, although according to the embodiment of the present invention, fluid inlet direction and the fluid egress point direction of flow meter set, make its angle α in the scope of 0 ° to 180 °, but, be the situation of 0 ° compared to angle α in prior art, the measuring tube (such as vibrating tube) according to the flowmeter of the embodiment of the present invention still can adopt usual shape and structure.Thus, according to the flowmeter of the embodiment of the present invention compared with existing flowmeter, its pressure drop can't raise or significantly raise.Thus, be directly arranged on fluid passage corner, not only eliminated turning pressure drop, and do not caused the rising of other pressure drop, thus total crushing of system is reduced.
Certainly, compared to the situation that angle in prior art is 0 °, according to the flowmeter of the embodiment of the present 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 designing needs adjustment.Hereinafter illustrate with reference to Fig. 3.
Coriolis flowmeter according to the embodiment of the present invention can also comprise: the measuring tube of such as vibrating tube, for generation of Coriolis effect, to make it possible to use Coriolis principle to measure the flow of fluid; These data transformations for sensing the data such as Coriolis force or moment of torsion directly or indirectly, and are that electric signal sends data processor to by sensing device; Data processor, for processing the data obtained from sensing device, and based on the flow of known parameters Fluid Computation; Communicator, for outputting to user side by volume computation.In the accompanying drawings, in order to for simplicity, the assembly do not discussed in above-mentioned each assembly will be omitted.
In view of in current practical application, the turning, fluid passage of 90 ° is comparatively common, hereinafter, and example when illustrating that α gets 90 ° with reference to Fig. 2 and Fig. 3.
Fig. 2 illustrates according to the embodiment of the present invention, its fluid inlet direction and fluid egress point angular separation to be the schematic diagram of the structure of the flowmeter 200 of 90 °.Flowmeter 200 comprises: the input block 201 with fluid inlet, for the fluid in fluid passage is introduced flowmeter along the direction (arrow 201d) of fluid inlet; And there is the output unit 203 of fluid egress point, for being discharged from flowmeter 200 in the direction (arrow 203d) of fluid along fluid egress point.Can visually see from Fig. 2, fluid inlet direction 201d is vertical with fluid egress point direction 203d.In other words, the angle α of fluid inlet direction 201d and fluid egress point direction 203d is in 90 °.
Fig. 3 is the skeleton view of the entity schematically showing the flowmeter 300 corresponding with flowmeter 200 shown in Fig. 2.Input block 301 (dark parts) is corresponding to the input block 201 of flowmeter 200.Output unit 303 (dark parts) is corresponding to the output unit 203 of flowmeter 200.In the present embodiment, input block 301 and output unit 303 include shunt fluid being introduced respectively each measuring tube.As seen from Figure 3, the direction of the fluid inlet of input block 301 and the direction of the fluid egress point of output unit 303 substantially vertical.
As shown in Figure 3, flowmeter 300 also comprises table body 302a, and is arranged at the measuring tube 302b of the such as vibrating tube in table body 302a.According in the embodiment of Fig. 3, be suitable for fluid inlet and the fluid egress point angle of 90 °, measuring tube 302b is configured to have bend in 90 °.In addition, in this embodiment, show body 302a and be also configured to have 90 ° of bending bends.
It should be noted that: measuring tube has bend in 90 °, just one preferred embodiment.The measuring tube of other shape, such as U-shaped, S shape etc. can meet requirement of the present invention equally, as long as the angle between fluid inlet and outlet is in 90 °, or according to fluid passage corner angle, as long as the angle between fluid inlet and outlet is positioned at 0 ° to 180 ° scope.
The situation using double hose measuring tube (vibrating tube) is illustrated in Fig. 3.Without restriction, also single hose measuring tube can be used, or the form of any measuring tube of this area use.
Hereinafter compare installation site difference according to flowmeter of the present invention and flowmeter of the prior art and relative merits in detail with reference to Fig. 4 a and Fig. 4 b.
Fig. 4 a and Fig. 4 b illustrates flowmeter of the prior art and the schematic diagram according to the installation situation of the coriolis flowmeter of the embodiment of the present invention respectively.
Point-blank, namely fluid inlet becomes 0 ° of angle with Way out for the fluid inlet of traditional flowmeter and Way out.Thus, traditional flowmeter is only suitable for being arranged in linear fluid passage.As is shown in fig. 4 a, when fluid passage has turning, even if the rate of flow of fluid for measuring corner, also flowmeter can only be arranged in the straight channel at contiguous turning.In this case, the overall pressure drop (total crushing) of system is turning pressure drop ↓ P
turningpressure drop ↓ P own with flowmeter
meterand.
When using the flowmeter according to the embodiment of the present invention, due to (being such as 90 °) that the fluid inlet of flowmeter according to the present invention and the angle of Way out are the angle manufactures according to the turning of the fluid passage that will be applied to, so flowmeter can be directly installed on fluid passage corner, as shown in Figure 4 b.In this case, the overall pressure drop (total crushing) of system is only the pressure drop ↓ P of this flowmeter itself.Thus, total crushing of system has been lowered.
In another embodiment of the present invention, a kind of method manufacturing coriolis flowmeter mentioned above is also provided.The method comprises: structure coriolis flowmeter, makes the angle in the direction of the direction of the fluid inlet of input block and the fluid egress point of output unit be α, and 0 ° of < α < 180 °.
When determining the number of degrees of angle of fluid inlet and fluid egress point, the various building method that this area can be adopted usual to the structure of the coriolis flowmeter with this angle and manufacturing process.Those skilled in the art can need to select according to application & design.
The corner angle of the fluid passage of the fluid delivery system that the occurrence of α will be able to be applied to according to flowmeter is determined.Current, fluid passage has the turning of 90 ° usually, thus, during fabrication, the angle in 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 by alpha configured for the angle of fluid inlet direction and Way out be 90 °, alternatively, the measuring tube for generation of Coriolis effect that coriolis flowmeter can also be comprised is configured to comprise bend in 90 °, as illustrated in fig 3.
Be adapted to the different set of angle α, the measuring tube of flowmeter and shell etc. also can suitably adjust.This can be needed to determine according to design and use by those skilled in the art.
The present invention is described with reference to specific embodiment in instructions above.But those of ordinary skill in the art understands, do not departing under the prerequisite as the scope of the present invention of claims restriction and can carry out various amendment and change.
Claims (6)
1. a coriolis flowmeter, comprising:
For generation of the measuring tube of Coriolis effect;
There is the input block of fluid inlet, for the fluid in fluid passage is introduced described measuring tube along the direction of described fluid inlet; And
There is the output unit of fluid egress point, for being discharged from described measuring tube in the direction of fluid along described fluid egress point;
Wherein, the angle in the direction of described fluid inlet and the direction of described fluid egress point is greater than 0 ° and is less than 180 °.
2. coriolis flowmeter according to claim 1, wherein, the angle in 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 measuring tube comprises bend in 90 °.
4. manufacture a method for coriolis flowmeter, described coriolis flowmeter comprises the measuring tube for generation of Coriolis effect; There is the input block of fluid inlet, for the fluid in fluid passage is introduced described measuring tube along the direction of described fluid inlet; And there is the output unit of fluid egress point, for being discharged from described measuring tube in the direction of fluid along described fluid egress point, described method comprises:
Construct described coriolis flowmeter, make the angle in the direction of the direction of described fluid inlet and described fluid egress point be greater than 0 ° and be less than 180 °.
5. the method for manufacture coriolis flowmeter according to claim 4, wherein, the angle in the direction of described fluid inlet and the direction of described fluid egress point is 90 °.
6. the method for manufacture coriolis flowmeter according to claim 5, wherein said measuring tube comprises bend in 90 °.
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 |
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| 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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| CN103206994A CN103206994A (en) | 2013-07-17 |
| CN103206994B true CN103206994B (en) | 2016-01-20 |
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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 |
|---|---|
| CN103206994A (en) | 2013-07-17 |
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