CN103674142A - Coriolis mass flowmeter sensor and flow distributer device thereof - Google Patents
Coriolis mass flowmeter sensor and flow distributer device thereof Download PDFInfo
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- CN103674142A CN103674142A CN201310681585.3A CN201310681585A CN103674142A CN 103674142 A CN103674142 A CN 103674142A CN 201310681585 A CN201310681585 A CN 201310681585A CN 103674142 A CN103674142 A CN 103674142A
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- mass flowmeter
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Abstract
The invention discloses a Coriolis mass flowmeter sensor and a flow distributer device of the Coriolis mass flowmeter sensor. The flow distributer device comprises two flow distributer bodies. Each flow distributer body is provided with a locating groove which is used for locating an upper shell of the sensor so that the upper shell of the sensor can be welded after being located to the flow distributer bodies through the locating grooves. In this way, the flow distributer device of the Coriolis mass flowmeter sensor can solve the problem that position deviation is prone to occurrence in the process of welding the flow distributer bodies and the upper shell.
Description
Technical field
The present invention relates to sensor technical field, relate in particular to Coriolis mass flowmeter sensor and diverter unit thereof.
Background technology
Coriolis mass flowmeters, be called for short Coriolis mass flowmeter, it is a kind of instrument of utilizing fluid principle mobile and Coriolis force that generation is directly proportional to mass rate in vibrating tube to carry out direct measurement quality flow, it can be directly used in mass rate, density and the temperature of measuring media, have that measuring accuracy is high, range ratio is wide, the feature such as good stability, maintenance are low, in petrochemical industry, be widely applied.
Mass flowmeter is by sensor, and transmitter and numeral indication accumulator three parts form, and the sensor of Coriolis mass flowmeter is made according to Coriolis effect, comprises the parts such as measuring tube, electromagnetic driver and electromagnetic detector, shunt.Electromagnetic driver makes measuring tube with its natural frequency vibration, and the importing of flow makes U-shaped measuring tube produce a kind of distortion under the effect of coriolis force, the left and right sides at it produces a phase differential, and according to Coriolis effect, this phase differential is directly proportional to mass rate.Electromagnetic detector changes corresponding level signal into this phase differential sends into transmitter, after the electric weight such as filtering, integration, amplification is processed, is transformed into the simulating signal that is directly proportional to quality and two kinds of formal outputs of frequency signal of certain limit.
The measuring principle of mass flowmeter be take newton's second law of motion as basis
F=ma
F-fluid force in formula; M-measured medium quality; A-acceleration.
When fluid is during by two parallel measuring tubes, can produce acceleration and a corresponding Coriolis force horizontal with flow velocity direction, this power makes measuring tube vibrate and be distorted, and this twisted phenomena is referred to as Coriolis phenomenon.
According to newton's second law of motion, the size of measuring tube twist angle is to be directly proportional to the size of the mass rate of the measuring tube of flowing through completely.When fluid flows through measuring tube, fluid will be subject to the effect of Coriolis force, and the retroaction of the suffered Coriolis force of fluid in measuring tube produces the phase differential of import and outlet.When fluid is zero, measuring tube vibrates under natural frequency, and measuring tube does not produce distortion, and the phase differential of fluid inlet and outlet is zero.When having fluid to flow through measuring tube, inflow point's tube vibration slows down, exit tube vibration accelerates, import produces phase differential with outlet, and when mass rate increases, this phase differential also increases, and by being installed on electromagnetic signal detecting device on import and outlet measuring tube, can record phase differential.
Mass flow sensor of the prior art comprises two shunts, and these two shunts weld together with upper shell, the support bar of sensor respectively, yet, in welding process, shunt and upper shell are not easy location, and deviation easily appears in welding, and then affects the performance of sensor.
Therefore, how to solve the problem that shunt and upper shell in prior art weld easy occurrence positions deviation, become those skilled in the art's important technological problems to be solved.
Summary of the invention
The invention provides a kind of diverter unit of Coriolis mass flowmeter sensor, it can solve the problem of easy occurrence positions deviation in shunt and upper shell welding process.The present invention also provides a kind of Coriolis mass flowmeter sensor that comprises above-mentioned diverter unit.
The diverter unit of a kind of Coriolis mass flowmeter sensor provided by the invention, comprise two shunt main bodys, described shunt main body is provided with the locating slot for the upper shell of alignment sensor, so that described upper shell is positioned to weld after described shunt main body by described locating slot again.
So arrange, before shunt main body and upper shell are welded, can first upper shell be positioned in the locating slot of shunt main body, then weld again, so, avoided in welding process, there is the problem of dislocation in shunt main body and upper shell, has guaranteed the usability of sensor.
The present invention also provides a kind of Coriolis mass flowmeter sensor, comprises the diverter unit of the above.So arrange, Coriolis mass flowmeter provided by the invention has been avoided in welding process, and the problem of dislocation occurs for shunt main body and upper shell, has guaranteed the usability of sensor.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the diverter unit schematic diagram of Coriolis mass flowmeter sensor in the specific embodiment of the invention;
In Fig. 1:
Shunt main body-11, upper shell-12, locating slot-13.
Embodiment
This embodiment provides a kind of diverter unit of Coriolis mass flowmeter sensor, and it can solve the problem of easy occurrence positions deviation in shunt and upper shell welding process.This embodiment also provides a kind of Coriolis mass flowmeter sensor that comprises above-mentioned diverter unit.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, the diverter unit of a kind of Coriolis mass flowmeter sensor that this embodiment provides, comprise two shunt main bodys 11, shunt main body 11 is provided with the locating slot 13 for the upper shell 12 of alignment sensor, so that upper shell 12 is positioned to weld after shunt main body 11 by locating slot 13 again.
So arrange, before shunt main body 11 and upper shell 12 are welded, can first upper shell 12 be positioned in the locating slot 13 of shunt main body 11, then weld again, so, avoided in welding process, there is with upper shell 12 problem misplacing in shunt main body 11, has guaranteed the usability of sensor.
This embodiment also provides a kind of Coriolis mass flowmeter sensor, comprises the diverter unit of the above.So arrange, the Coriolis mass flowmeter that this embodiment provides has been avoided in welding process, and the problem of dislocation occurs for shunt main body and upper shell, has guaranteed the usability of sensor.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (2)
1. the diverter unit of a Coriolis mass flowmeter sensor, comprise two shunt main bodys, it is characterized in that, described shunt main body is provided with the locating slot for the upper shell of alignment sensor, so that described upper shell is positioned to weld after described shunt main body by described locating slot again.
2. a Coriolis mass flowmeter sensor, is characterized in that, comprises diverter unit as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310681585.3A CN103674142A (en) | 2013-12-12 | 2013-12-12 | Coriolis mass flowmeter sensor and flow distributer device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310681585.3A CN103674142A (en) | 2013-12-12 | 2013-12-12 | Coriolis mass flowmeter sensor and flow distributer device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103674142A true CN103674142A (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310681585.3A Pending CN103674142A (en) | 2013-12-12 | 2013-12-12 | Coriolis mass flowmeter sensor and flow distributer device thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6286373B1 (en) * | 1999-02-12 | 2001-09-11 | Micro Motion, Inc. | Coriolis flowmeter having an explosion proof housing |
| CN1246674C (en) * | 1999-06-30 | 2006-03-22 | 微动公司 | Straight tube coroilis flowmeter assembly |
| CN201637449U (en) * | 2010-04-22 | 2010-11-17 | 成都安迪生测量有限公司 | Inlet and outlet combined type distribution cone of Coriolis mass flow meter |
| CN201852610U (en) * | 2010-11-09 | 2011-06-01 | 西安东风机电有限公司 | Casing of Coriolis mass flow sensor |
| CN103076053A (en) * | 2012-12-31 | 2013-05-01 | 孙晓君 | Mass flowmeter |
| CN203837759U (en) * | 2013-12-12 | 2014-09-17 | 重庆川仪自动化股份有限公司 | Coriolis mass flowmeter sensor and flow distributor thereof |
-
2013
- 2013-12-12 CN CN201310681585.3A patent/CN103674142A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6286373B1 (en) * | 1999-02-12 | 2001-09-11 | Micro Motion, Inc. | Coriolis flowmeter having an explosion proof housing |
| CN1246674C (en) * | 1999-06-30 | 2006-03-22 | 微动公司 | Straight tube coroilis flowmeter assembly |
| CN201637449U (en) * | 2010-04-22 | 2010-11-17 | 成都安迪生测量有限公司 | Inlet and outlet combined type distribution cone of Coriolis mass flow meter |
| CN201852610U (en) * | 2010-11-09 | 2011-06-01 | 西安东风机电有限公司 | Casing of Coriolis mass flow sensor |
| CN103076053A (en) * | 2012-12-31 | 2013-05-01 | 孙晓君 | Mass flowmeter |
| CN203837759U (en) * | 2013-12-12 | 2014-09-17 | 重庆川仪自动化股份有限公司 | Coriolis mass flowmeter sensor and flow distributor thereof |
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Application publication date: 20140326 |