CN110567544A - straight tube type Coriolis mass flowmeter corrugated straight tube - Google Patents
straight tube type Coriolis mass flowmeter corrugated straight tube Download PDFInfo
- Publication number
- CN110567544A CN110567544A CN201910725461.8A CN201910725461A CN110567544A CN 110567544 A CN110567544 A CN 110567544A CN 201910725461 A CN201910725461 A CN 201910725461A CN 110567544 A CN110567544 A CN 110567544A
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- Prior art keywords
- pipe
- straight
- corrugated
- straight tube
- corrugated pipe
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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
- G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
- G01F1/8413—Coriolis or gyroscopic mass flowmeters constructional details means for influencing the flowmeter's motional or vibrational behaviour, e.g., conduit support or fixing means, or conduit attachments
-
- 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
- G01F15/16—Diaphragms; Bellows; Mountings therefor
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a corrugated straight pipe for a straight pipe type Coriolis mass flowmeter, and relates to the technical field of flowmeters. The corrugated pipe structure comprises a first corrugated pipe, wherein a first straight pipe is arranged at one end of the first corrugated pipe, the first corrugated pipe is communicated with the first straight pipe, a second corrugated pipe is arranged at one end of the first straight pipe, the first straight pipe is communicated with the second corrugated pipe, a second straight pipe is arranged at one end of the second corrugated pipe, the second corrugated pipe is communicated with the second straight pipe, a third corrugated pipe is arranged at one end of the second straight pipe, the second straight pipe is communicated with the third corrugated pipe, a third straight pipe is arranged at one end of the third corrugated pipe, the third corrugated pipe is communicated with the third straight pipe, a fourth corrugated pipe is arranged at one end of the third straight pipe, and the third straight pipe is communicated with the fourth corrugated pipe. The invention can solve the problem of large detection error of the existing straight tube type Coriolis mass flowmeter.
Description
Technical Field
The invention relates to the technical field of flowmeters, in particular to a corrugated straight pipe for a straight pipe type Coriolis mass flowmeter.
Background
Compared with the existing bent tube type Coriolis mass flowmeter, the existing straight tube type Coriolis mass flowmeter has the advantages of difficult fluid retention, convenient cleaning, small size, light weight, small fluid pressure loss and the like. However, the straight tube adopted by the existing straight tube type coriolis mass flowmeter has the defects of large rigidity, small amplitude and the like, so that the detection error of the existing straight tube type coriolis mass flowmeter is large, and the actual application range of the existing straight tube type coriolis mass flowmeter is limited.
Disclosure of Invention
Aiming at the defects of the prior art, the invention discloses a corrugated straight pipe for a straight pipe type Coriolis mass flowmeter, which can solve the problem of large detection error of the existing straight pipe type Coriolis mass flowmeter.
In order to achieve the purpose, the invention is realized by the following technical scheme:
The utility model provides a straight tube formula Coriolis mass flowmeter is with ripple straight tube, includes first bellows the one end of first bellows is provided with first straight tube, first bellows with first straight tube intercommunication the one end of first straight tube is provided with the second bellows, first straight tube with the second bellows intercommunication the one end of second bellows is provided with the second straight tube, the second bellows with the second straight tube intercommunication the one end of second straight tube is provided with the third bellows, the second straight tube with third bellows intercommunication the one end of third bellows is provided with the third straight tube, the third bellows with the third straight tube intercommunication the one end of third straight tube is provided with the fourth bellows, the third straight tube with the fourth bellows intercommunication.
Preferably, the first corrugated pipe and the first straight pipe are coaxially arranged, the first straight pipe and the second corrugated pipe are coaxially arranged, the second corrugated pipe and the second straight pipe are coaxially arranged, the second straight pipe and the third corrugated pipe are coaxially arranged, the third corrugated pipe and the third straight pipe are coaxially arranged, and the third straight pipe and the fourth corrugated pipe are coaxially arranged.
Preferably, the maximum inner diameter of the first straight pipe is D1, the maximum inner diameter of the second straight pipe is D2, the maximum inner diameter of the third straight pipe is D3, and D1-D2-D3.
Further preferably, the maximum inner diameter of the first bellows is d1, the maximum inner diameter of the second bellows is d2, the maximum inner diameter of the third bellows is d3, the maximum inner diameter of the fourth bellows is d4, and d1 ═ d2 ═ d3 ═ d 4.
More preferably, D1 ═ D2 ═ D3 ≦ D1 ═ D2 ═ D3 ═ D4.
Preferably, a first flange is arranged at one end, deviating from the first straight pipe, of the first corrugated pipe, and the first flange is arranged on the peripheral side wall of the first corrugated pipe.
Preferably, a second flange is arranged at one end, deviating from the third straight pipe, of the fourth corrugated pipe, and the second flange is arranged on the peripheral side wall of the fourth corrugated pipe.
The invention discloses a corrugated straight pipe for a straight pipe type Coriolis mass flowmeter, which has the following advantages:
The combined action of the first corrugated pipe, the second corrugated pipe, the third corrugated pipe and the fourth corrugated pipe reduces the rigidity of one straight pipe of the existing straight pipe type Coriolis mass flowmeter, the vibration amplitude of the straight pipe type Coriolis mass flowmeter is increased through the first straight pipe, the second straight pipe and the third straight pipe, and due to the fact that the corrugated pipe is small in rigidity, large deformation can be generated, larger amplitude is obtained, and the measurement accuracy of the straight pipe type Coriolis mass flowmeter is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a cross-sectional view of an embodiment of the present invention;
Fig. 2 is a top view of an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments.
all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 2, a corrugated straight tube for a straight tube coriolis mass flowmeter according to an embodiment of the present invention includes a first corrugated tube 2, a first straight tube 3 provided at one end of the first corrugated tube 2, the first corrugated tube 2 communicating with the first straight tube 3, a second corrugated tube 4 provided at one end of the first straight tube 3, the first straight tube 3 communicating with the second corrugated tube 4, a second straight tube 5 provided at one end of the second corrugated tube 4, the second corrugated tube 4 communicating with the second straight tube 5, a third corrugated tube 6 provided at one end of the second straight tube 5, the second straight tube 5 communicating with the third corrugated tube 6, a third straight tube 7 provided at one end of the third corrugated tube 6, the third corrugated tube 6 communicating with the third straight tube 7, and a fourth corrugated tube 8 provided at one end of the third straight tube 7, the third straight pipe 7 is communicated with the fourth corrugated pipe 8.
In order to maintain the straight-line structure of the straight-tube coriolis mass flowmeter and simultaneously maintain smooth flow of a medium in the straight-tube coriolis mass flowmeter, the first corrugated tube 2 and the first straight tube 3 are coaxially arranged, the first straight tube 3 and the second corrugated tube 4 are coaxially arranged, the second corrugated tube 4 and the second straight tube 5 are coaxially arranged, the second straight tube 5 and the third corrugated tube 6 are coaxially arranged, the third corrugated tube 6 and the third straight tube 7 are coaxially arranged, and the third straight tube 7 and the fourth corrugated tube 8 are coaxially arranged.
In order to improve the degree of change of the rigidity of the corrugated pipe to the straight pipe, the maximum inner diameter position of the first straight pipe 3 is set to be D1, the maximum inner diameter position of the second straight pipe 5 is set to be D2, the maximum inner diameter position of the third straight pipe 7 is set to be D3, and D1-D2-D3.
The maximum inner diameter of the first bellows 2 is d1, the maximum inner diameter of the second bellows 4 is d2, the maximum inner diameter of the third bellows 6 is d3, the maximum inner diameter of the fourth bellows 8 is d4, and d 1-d 2-d 3-d 4.
In the present embodiment, the maximum inner diameter dimension of all the straight pipes is not greater than the maximum inner diameter dimension of all the corrugated pipes, i.e., D1-D2-D3-D1-D2-D3-D4.
In order to facilitate the installation of the corrugated straight pipe in the straight pipe type coriolis mass flowmeter, a first flange 1 is arranged at one end of the first corrugated pipe 2, which is far away from the first straight pipe 3, and the first flange 1 is arranged on the peripheral side wall of the first corrugated pipe 2. A second flange 9 is arranged at one end, deviating from the third straight pipe 7, of the fourth corrugated pipe 8, and the second flange 9 is arranged on the peripheral side wall of the fourth corrugated pipe 8.
In this embodiment, all the connection methods are completed by welding.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides a straight tube formula Coriolis mass flowmeter is with ripple straight tube which characterized in that: the corrugated pipe structure comprises a first corrugated pipe, wherein a first straight pipe is arranged at one end of the first corrugated pipe, the first corrugated pipe is communicated with the first straight pipe, a second corrugated pipe is arranged at one end of the first straight pipe, the first straight pipe is communicated with the second corrugated pipe, a second straight pipe is arranged at one end of the second corrugated pipe, the second corrugated pipe is communicated with the second straight pipe, a third corrugated pipe is arranged at one end of the second straight pipe, the second straight pipe is communicated with the third corrugated pipe, a third straight pipe is arranged at one end of the third corrugated pipe, the third corrugated pipe is communicated with the third straight pipe, a fourth corrugated pipe is arranged at one end of the third straight pipe, and the third straight pipe is communicated with the fourth corrugated pipe.
2. The corrugated straight tube for a straight tube coriolis mass flowmeter of claim 1 characterized in that: the first corrugated pipe and the first straight pipe are coaxially arranged, the first straight pipe and the second corrugated pipe are coaxially arranged, the second corrugated pipe and the second straight pipe are coaxially arranged, the second straight pipe and the third corrugated pipe are coaxially arranged, the third corrugated pipe and the third straight pipe are coaxially arranged, and the third straight pipe and the fourth corrugated pipe are coaxially arranged.
3. The corrugated straight tube for a straight tube coriolis mass flowmeter of claim 1 characterized in that: the maximum inner diameter position of the first straight pipe is D1, the maximum inner diameter position of the second straight pipe is D2, the maximum inner diameter position of the third straight pipe is D3, and D1-D2-D3.
4. A corrugated straight tube for a straight tube coriolis mass flowmeter as set forth in claim 3 wherein: the maximum inner diameter of the first bellows is d1, the maximum inner diameter of the second bellows is d2, the maximum inner diameter of the third bellows is d3, the maximum inner diameter of the fourth bellows is d4, and d 1-d 2-d 3-d 4.
5. The corrugated straight tube for a straight tube coriolis mass flowmeter of claim 4 characterized in that: d1 ═ D2 ═ D3 ≦ D1 ═ D2 ═ D3 ═ D4.
6. The corrugated straight tube for a straight tube coriolis mass flowmeter of claim 1 characterized in that: one end, deviating from the first straight pipe, of the first corrugated pipe is provided with a first flange, and the first flange is arranged on the peripheral side wall of the first corrugated pipe.
7. The corrugated straight tube for a straight tube coriolis mass flowmeter of claim 1 characterized in that: and a second flange is arranged at one end of the fourth corrugated pipe, which deviates from the third straight pipe, and the second flange is arranged on the peripheral side wall of the fourth corrugated pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910725461.8A CN110567544A (en) | 2019-08-07 | 2019-08-07 | straight tube type Coriolis mass flowmeter corrugated straight tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910725461.8A CN110567544A (en) | 2019-08-07 | 2019-08-07 | straight tube type Coriolis mass flowmeter corrugated straight tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110567544A true CN110567544A (en) | 2019-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910725461.8A Pending CN110567544A (en) | 2019-08-07 | 2019-08-07 | straight tube type Coriolis mass flowmeter corrugated straight tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110567544A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082708A (en) * | 1992-08-02 | 1994-02-23 | 王中庭 | Momentum complex differencial pressure type mass flowmetre |
| EP0985135A1 (en) * | 1997-05-30 | 2000-03-15 | Micro Motion Incorporated | Coriolis flowmeter having corrugated flow tube |
| CN1290853A (en) * | 1999-10-05 | 2001-04-11 | 株式会社椭圆 | Coriolis mass flow meter |
| CN1544891A (en) * | 2003-11-18 | 2004-11-10 | 华中科技大学 | Detection equipment of Coriolis mass flow meter |
| CN101221059A (en) * | 2007-10-12 | 2008-07-16 | 清华大学 | Single straight tube Coriolis mass flowmeter |
| CN107144314A (en) * | 2017-06-28 | 2017-09-08 | 郭华 | Linear pattern shell and tube mass flowmenter |
-
2019
- 2019-08-07 CN CN201910725461.8A patent/CN110567544A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082708A (en) * | 1992-08-02 | 1994-02-23 | 王中庭 | Momentum complex differencial pressure type mass flowmetre |
| EP0985135A1 (en) * | 1997-05-30 | 2000-03-15 | Micro Motion Incorporated | Coriolis flowmeter having corrugated flow tube |
| CN1290853A (en) * | 1999-10-05 | 2001-04-11 | 株式会社椭圆 | Coriolis mass flow meter |
| CN1544891A (en) * | 2003-11-18 | 2004-11-10 | 华中科技大学 | Detection equipment of Coriolis mass flow meter |
| CN101221059A (en) * | 2007-10-12 | 2008-07-16 | 清华大学 | Single straight tube Coriolis mass flowmeter |
| CN107144314A (en) * | 2017-06-28 | 2017-09-08 | 郭华 | Linear pattern shell and tube mass flowmenter |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191213 |
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| RJ01 | Rejection of invention patent application after publication |