CN108195438A - A kind of coriolis mass flowmeters with insulation jacket - Google Patents
A kind of coriolis mass flowmeters with insulation jacket Download PDFInfo
- Publication number
- CN108195438A CN108195438A CN201611120962.6A CN201611120962A CN108195438A CN 108195438 A CN108195438 A CN 108195438A CN 201611120962 A CN201611120962 A CN 201611120962A CN 108195438 A CN108195438 A CN 108195438A
- Authority
- CN
- China
- Prior art keywords
- insulation jacket
- coriolis mass
- mass flowmeters
- heat
- sides
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
-
- 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
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
A kind of coriolis mass flowmeters with insulation jacket, it is fixedly equipped with insulation jacket respectively in coriolis mass flowmeters lower part both sides, the insulation jacket is made of innner and outer panel and surrounding coaming plate, wherein form cavity body, the both sides insulation jacket cavity body is connected by intermediate connecting tube, cavity body is built-in with the heat-conducting medium of circulation, and the insulation jacket top per side is equipped with the import or outlet of heat-conducting medium, and lower part is equipped with aerial drainage sewage draining exit.The present invention is close to flowmeter appearance using large area insulation jacket, improves rate of heat exchange, and make the smooth carry out heat exchange of heat-conducting medium of both sides cavity, both ensure that flowmeter both sides heat tracing effect, and also ensured the circulation of heat-conducting medium.The tracing thermal-insulating section of the present invention can reach 60 DEG C~260 DEG C, farthest meet demand of the live testing medium to high temperature heat tracing, can adapt to requirement of the increasingly sophisticated field working conditions to high-precision measuring.
Description
Technical field
The present invention relates to a kind of coriolis mass flowmeters（Coriolis Mass Flowmeter）, more particularly to one
Coriolis mass flowmeters of the kind with insulation jacket, belong to flow meter instrument field, for the direct of mass flow
High-acruracy survey.
Background technology
Mass flow measurement techniques are the emphasis that current national science and technology develops in process control field, to realize to various
The measurement of high accuracy, high reliability of the medium under complicated environmental condition, coriolis mass flowmeters are with its superior property
The new type measuring instrument table that the field is given priority to can be become.
Coriolis mass flowmeters（Hereinafter referred to as coriolis meter）It is that pipeline is flowed through based on Coriolis effect measurement
The New Type of Intelligent Instrument of the parameters such as quality, density, the temperature of fluid.Specifically, coriolis meter measurement pipe does simple harmonic oscillation
（Or circular motion）, when fluid media (medium) flows through measurement pipe with a certain speed, on the one hand medium makees synchronous vibration with measurement pipe（Letter
Harmonic motion or circular motion）, on the other hand continue with the speed through pipeline, medium is to pipeline generation and media flow side at this time
To vertical reaction force, i.e. " Coriolis force "；Under this force, the synchronous vibration transformation at measurement pipe symmetric position
For asynchronous vibration, and this asynchronous be embodied in vibration signal waveforms is phase difference, the numerical value and medium of phase difference
Mass flow it is directly proportional, pass through detection circuit calculate signal phase difference, you can obtain the mass flow of medium.
Coriolis meter is divided into single hose and double hose according to measurement pipe quantity difference.Single hose Yin Qiyi is shaken by the external world
Dynamic interference and serious null offset cause measurement accuracy poor, therefore single hose practical application is less, is mostly set using double hose
Meter.It is different according to tube shape is measured, bent tube type and straight pipe type can be divided into.
Since the shortcomings of rigidity of straight tube is big, sensitivity is low, range ratio is small, largely constrains its practical application.
Bent tube type type is more, such as U-shaped, micro-bend type, △ types, Ω types.Wherein, U-shaped and micro-bend type is due to its high sensitivity, range ratio
Wide, the advantages that manufacturing process is simple and ripe and be used widely.
In the mass flow for measuring medium using coriolis meter, need to heat up or keep the temperature to medium there are two types of operating mode
Processing：
Operating mode one：Dynamic viscosity is in the medium of 1000mPas, such as pitch, crude oil, adhesive, paraffin；This medium is normal
Negotiability at 20 DEG C of temperature is very weak, needs that medium temperature is increased to 80 DEG C~160 DEG C and is stablized to keep；
Operating mode two：Medium itself needs isothermal holding, and for certain process control or chemical reaction etc., such as scene is practical to be measured
The mass flow of benzoic acid needs to give heat tracing using saturated vapor.
Since the measurement pipe of coriolis meter belongs to vibration component, it can not directly apply Insulation, institute in measurement pipe
It is that thermal insulation material is wrapped up on sensor outer housing with most of used technology, such as the heat preservation of winding heat-preservation cotton indirect type is arranged
It applies.This mode is simple and easy to do, and cost is extremely low, but less effective, and does not have the function of " active " heating.How product is taken
Polar region " active " Insulation be worth research field.In addition to this, the temperature that conventional coriolis meter can measure
It is -50 DEG C~60 DEG C to spend range, in high temperature section, it is difficult to 80 DEG C~160 DEG C temperature ranges required by meeting heat-conducting medium.
Invention content
The technical problems to be solved by the invention are the defects of overcoming in the presence of the above-mentioned prior art, provide a kind of band and protect
The coriolis mass flowmeters of warm chuck can be initiatively testing medium heat supply by heat-conducting medium.
Present invention employs following technical proposals to solve its technical problem：A kind of Coriolis mass with insulation jacket
Flowmeter, including coriolis mass flowmeters, it is characterised in that：It is fixed respectively in coriolis mass flowmeters lower part both sides
Insulation jacket is equipped with, which is made of innner and outer panel and surrounding coaming plate, wherein cavity body is formed, the both sides
Insulation jacket cavity body is connected by intermediate connecting tube, and cavity body is built-in with the heat-conducting medium of circulation, the heat preservation per side
Chuck top is equipped with the import or outlet of heat-conducting medium, and lower part is equipped with aerial drainage sewage draining exit.
The present invention overcome the problems, such as conventional flow meters can not " active " heating, the insulation jacket of large area is close to flowmeter
Appearance substantially increases rate of heat exchange；Heat-conducting medium is realized by the cavity of connecting tube both sides again（For example saturation is steamed
Vapour）Inflow and outflow heat exchange it is smooth, both ensure that flowmeter both sides heat tracing effect, and also ensured the circulation of heat-conducting medium.
The tracing thermal-insulating section of the present invention can reach 60 DEG C~260 DEG C, farthest meet live testing medium to high temperature companion
The demand of heat.Meanwhile continue to play the advantages of coriolis mass flowmeters are consistent, realize the high-precision to mass flow, height
The metering of sensitivity meets requirement of the increasingly sophisticated field working conditions to high-precision measuring to a greater degree.
Description of the drawings
Fig. 1 is coriolis mass flowmeters structure diagram in the present invention.
Fig. 2 is the coriolis mass flowmeters structure diagram for having added shell in the present invention.
Fig. 3 is the coriolis mass flowmeters Standard figure of the invention with insulation jacket.
Fig. 4 is the coriolis mass flowmeters outline structural diagram of the invention with insulation jacket.
Fig. 5 is the structural profile enlarged drawing of insulation jacket in the present invention.
Each serial number is expressed as in figure：
100-mass flowmenter, 101-measurement pipe, 102-damping sheet, 103-driving part, 104-detection part, 105-
Flange, 106-shunting body, 107-support tube,
201-shell,
301-insulation jacket, 302-outer panels, 303-bump joint, 304-jacket flange, 305-connector, 306-copper ball
Valve, 307-surrounding coaming plate, 308-connecting tube, 309-the inside plate, 311-heat-conducting medium, 312-cavity body.
Specific embodiment
With reference to embodiments and attached drawing the invention will be further described.
Referring to Figures 1 and 2, the present invention includes coriolis mass flowmeters 100, the coriolis mass flowmeters 100
Including two corresponding horizontal survey pipes 101, which is fixedly connected by shunting body 106 with flange 105, and two
Support tube 107 is fixedly connected between shunting body 106, the fixation of damping sheet 102 is put in 101 both ends of measurement pipe, 101 bottom of measurement pipe circle
The upper of arc pipeline section is also equipped with driving part 103, and the fixation of detection part 104 is put at the bottom of 101 bottom circular arc pipeline section both sides of measurement pipe
Portion, shell 201 are fixedly connected by welding with support tube 107.
The measurement pipe 101 is the completely the same parallel bend pipe of a pair of of specification, and the tubular of measurement pipe 101 uses micro-bend type
Design method, effectively reduce crushing, reduce fluid resistance, improve antijamming capability, there is high-precision, highly sensitive, low
The good characteristics such as crushing.
The damping sheet 102 is one piece of intermediate rectangle stainless steel plate perforated, for connecting measurement pipe 101.Described
Respectively there is one piece of damping sheet 102 at 101 both ends of measurement pipe, pass through the fixation of damping sheet 102, it is ensured that the center of two measurement pipes 101
Away from consistent, its symmetry and the depth of parallelism are ensured that.
The conducting wire used in the driving part 103 and detection part 104 belongs to high temperature conducting wire, and welding procedure uses
Silver-based welding technique, to promote the temperature resistant capability of sensor magnetoelectricity system, 260 DEG C of highest heatproof.
With reference to Fig. 3, Fig. 4 and Fig. 5, the present invention is fixedly equipped with guarantor respectively in 100 lower part both sides of coriolis mass flowmeters
Warm chuck 301, the insulation jacket 301 are plate 309, outer panels 302 and surrounding coaming plate 307 inside the stainless steel of 3mm by thickness
It forms, wherein forming cavity body 312.The both sides cavity body 312 is connected by intermediate connecting tube 308, cavity body 312
The heat-conducting medium 311 of circulation is built-in with, 301 top of insulation jacket per side is equipped with the import or outlet of heat-conducting medium 311,
Lower part is equipped with aerial drainage sewage draining exit.
The import on 301 top of insulation jacket or outlet by the bump joint 303 that is fixed in outer panels 302,
And it connects the jacket flange 304 of the bump joint 303 and is formed.
Copper ball valve 306 is fixedly equipped with by connector 305 on the aerial drainage sewage draining exit of 301 lower part of insulation jacket.
The insulation jacket 301 of 100 lower part both sides of coriolis mass flowmeters of the present invention, the inside plate 309 with
It is bonded by flowmeter shell 201, and passes through welding and be fixedly connected with support tube 107 on coriolis mass flowmeters 100.
Under 301 working condition of insulation jacket, copper ball valve 306 is normally closed；When insulation jacket 301 leads to heat conduction because being stopped
When medium 311 is excessive or needs cleaning, opens copper ball valve 306 and aerial drainage or blowdown can be realized, it is easy to operate, using efficient.
During present invention work, fluid to be measured realizes that process connects through flange 105, is treated by the realization of mass flowmenter 100
The mass flow for surveying medium fluid is accurately measured.At the same time, heat-conducting medium 311 inputs chuck cavity by jacket flange 304
Body 312 imported into another cavity through connecting tube 308 after heat-conducting medium 311 is full of the cavity, is further continued for being full of behind the side through going out
Mouth flange outflow, so as to smoothly realize reflux.201 surface of shell of two cavitys and mass flowmenter 100 comes into full contact with, contact
Closely, and contact area is big, and 311 heat of heat-conducting medium is farthest led to the mode of heat transfer, is realized to quality stream
The heating and heat preservation of 100 internal flow testing medium of gauge, are effectively improved insulating power, have reached expected heat tracing effect
Fruit.
Circulation including the large area insulation jacket 301 of the present invention and heat-conducting medium 311, it is ensured that good heat tracing
Effect, in addition, the copper ball valve 306 set respectively in both sides insulation jacket 301, for cold in cavity cleaning, exclusion cavity
Condensate substantially reduces and takes up space because of the presence of condensed water, reduces heat insulation effect.On the one hand it is leading for circulation as a result,
Thermal medium 311 realizes " active " heat preservation, on the other hand designs blowdown valve and eliminates unfavorable factor, two aspects are common to improve Coriolis stream
The heat insulation effect of gauge.
Claims (5)
1. a kind of coriolis mass flowmeters with insulation jacket, including coriolis mass flowmeters, it is characterised in that：
Coriolis mass flowmeters lower part both sides are fixedly equipped with insulation jacket respectively, and the insulation jacket is by innner and outer panel and surrounding
Coaming plate is formed, wherein forming cavity body, the both sides insulation jacket cavity body is connected by intermediate connecting tube, cavity body
The heat-conducting medium of circulation is built-in with, the insulation jacket top per side is equipped with the import or outlet of heat-conducting medium, and lower part is equipped with
Aerial drainage sewage draining exit.
2. a kind of coriolis mass flowmeters with insulation jacket according to claim 1, it is characterised in that：Described
The import or outlet on insulation jacket top, by the bump joint being fixed in outer panels and the folder for connecting the bump joint
Set flange is formed.
3. a kind of coriolis mass flowmeters with insulation jacket according to claim 1, it is characterised in that：Described
Copper ball valve is fixedly equipped on the aerial drainage sewage draining exit of insulation jacket lower part.
4. a kind of coriolis mass flowmeters with insulation jacket according to claim 1, it is characterised in that：Described
Coriolis mass flowmeters include two corresponding horizontal survey pipes, which is fixed by shunting body and flange connects
It connects, support tube is fixedly connected between two shunting bodies, damping sheet fixation is put at measurement pipe both ends, measures the upper of bottom of the tube arc tube section
Driving part is also equipped with, detection part fixation is put in the bottom for measuring bottom of the tube arc tube section both sides, and shell passes through with support tube
It is welded and fixed connection.
5. a kind of coriolis mass flowmeters with insulation jacket according to claim 4, it is characterised in that：Described
The insulation jacket of coriolis mass flowmeters lower part both sides, the inside plate are bonded, and pass through welding with by flowmeter shell
It is fixedly connected with support tube on coriolis mass flowmeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611120962.6A CN108195438A (en) | 2016-12-08 | 2016-12-08 | A kind of coriolis mass flowmeters with insulation jacket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611120962.6A CN108195438A (en) | 2016-12-08 | 2016-12-08 | A kind of coriolis mass flowmeters with insulation jacket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108195438A true CN108195438A (en) | 2018-06-22 |
Family
ID=62572440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611120962.6A Pending CN108195438A (en) | 2016-12-08 | 2016-12-08 | A kind of coriolis mass flowmeters with insulation jacket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108195438A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109434057A (en) * | 2018-12-27 | 2019-03-08 | 西南铝业（集团）有限责任公司 | A kind of high-accuracy cast system |
| CN111795729A (en) * | 2019-04-08 | 2020-10-20 | 高准有限公司 | Casing of flowmeter and flowmeter comprising casing |
-
2016
- 2016-12-08 CN CN201611120962.6A patent/CN108195438A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109434057A (en) * | 2018-12-27 | 2019-03-08 | 西南铝业（集团）有限责任公司 | A kind of high-accuracy cast system |
| CN111795729A (en) * | 2019-04-08 | 2020-10-20 | 高准有限公司 | Casing of flowmeter and flowmeter comprising casing |
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Legal Events
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180622 |