CN207751539U - Coriolis mass flowmeters and its sensor module - Google Patents

Abstract

The utility model discloses a kind of coriolis mass flowmeters sensor modules, flowmeter has the upstream line connector for connecting upstream fluid pipeline and the downstream line connector for connecting downstream fluid pipeline, sensor module is installed in the shell of flowmeter comprising：Fluid flow pipe, with fluid input lines and fluid outlet line and the dual loop piping being connected between fluid input lines and fluid outlet line；Vibration insulation structure, including at least be fixed in fluid flow pipe with by fluid flow pipe be divided into vibration pipeline and non-vibration pipeline the first vibration piece；Increase weight structure, is arranged on non-vibration pipeline, and the structure that increases weight and non-vibration pipeline are not contacted with shell；And connection structure, one end are fixedly connected on non-vibration pipeline, the other end is fixedly connected on upstream line connector and/or downstream line connector, so as to be flexible connection between non-vibration pipeline and corresponding upstream line connector and/or downstream line connector.

Description

Coriolis mass flowmeters and its sensor module

Technical field

The utility model is related to coriolis mass flowmeters, and in particular to a kind of stream with series dual loop piping The sensor module of body flow duct, and the coriolis mass flowmeters with the sensor module.

Background technology

Coriolis mass flowmeters are a kind of instrument directly critically measuring fluid flow.Typical Coriolis matter Measure flowmeter structure main body use two U-tubes side by side, allow two pipes under its resonant frequency with same frequency and reversed-phase vibrate, i.e., they It can draw close or open simultaneously simultaneously.If while vibrating tube synchronous vibration, direct fluid into pipe, is allowed to along pipe forward Flowing, then vibrating tube vibrates forced fluid therewith.Fluid in order to revolt this forced vibration, can give vibrating tube one with The vertical reaction force in its flow direction, it is this be called Coriolis effect under the action of, vibrating tube by generate torsion become Shape, fluid inlet section pipe can be variant in the time order and function of vibration with fluid outlet section pipe, and it is poor that this is called phase time.This difference It is different directly proportional to the size for the liquid mass flow for flowing through vibrating tube.It, can if the size of this time difference can be detected The size of mass flow is determined.Coriolis mass flowmeters are exactly to be made according to above-mentioned principle.

Currently, according to the vibrating tube quantity in sensor, single tube type and shaped double tube can be divided into, single tube type instrument does not shunt, Flow is equal everywhere in measurement pipe, has outside to balanced null point, also allows for cleaning, but easily interfered by extraneous vibration, be detected in The product of early stage and some small-bore instrument.Shaped double tube instrument had both realized the measurement of two-tube phase difference, has also increased big signal and has increased It is strong linearly, while reducing the influence of extraneous vibration interference.

It can be roughly divided into Straight and elbow-shaped according to the tubular-shaped structures of sensor, Straight instrument is not easy to stockpile gas, Flow sensor size is small, light-weight.But natural frequency of vibration high RST is not easy to detect, to make the natural frequency of vibration be unlikely to too high, often Tube wall is made relatively thin, easily frayed and corrosion.The instrument piping rigidity of elbow-shaped detection pipe is low, and generation signal is relatively large, skill Art also relative maturity.Because the natural frequency of vibration is also low (80-150Hz), thicker tube wall may be used, instrument is wear-resisting, corrosion resistance Preferably, but easily it can stockpile gas and residue causes additive error to be cut to require installation space.

Currently on the market it is more mature it is tubular be double П type pipe structures, because its is simple in structure, manufacture is easy, sensitivity Moderate, the stronger feature of impact resistance makes presently the most economic sensor structure.

But when mass flowmenter is applied to food and medical field, then double Π type pipe structures are not used substantially, it is former Because being：First, food and medical field have hygienic requirements, as cannot have shunt conduit inside the flowmeter of metering；Its It is secondary, if doing П shape form of tubes with single tube, multi-modal coupling can occur because of internal pipeline complexity, influence performance, therefore, generally Single tube or non-П shapes pipe structure can only be used for the mass flowmenter of food and medical field, This reduces both measuring accuracy, Also counteract the popularization of mass flowmenter.

To solve the above-mentioned problems, there are a kind of double Π types single tube sensors with not flow dividing structure in the prior art Coriolis mass flowmeters, as disclosed in Chinese patent literature CN1116588C with continuous fluid flow pipe section in Profit mass flowmenter difficult to understand, fluid flow pipe have dual loop, the input pipe from fluid stream used in the fluid of place's reception by the road Fluid is returned to fluid and flows through output pipe used in material, and surrounds the shell of dual loop by road, flow meter assembly tool Have：The second loop with the first and second ends in fluid flow pipe is configured, by first end from the first loop The second end receives fluent material, is guided fluent material to output pipe by the second end；In fluid flow pipe Bridging section, it is guided streaming flow to the second loop by the first loop；It is fixedly connected on shell and fluid flow pipe Fixed connecting part；And it is connected to the supporting rod of the first loop and the second loop.From the point of view of the full text of the patent document, fix The main function of connecting component is：1, double loop is securely attached on shell by the way of melting welding；2, using suitable Big quality reduces small distortion of the melting welding to fixed connecting part, reduces influence of the distortion to double loop；3, pass through setting Fixed connecting part, realize the oscillating component of flowmeter and flowmeter install to fluid stream by the road on non-vibration be partially separated It opens.

However, there are still following defects in actual use for technical solution disclosed in the patent document：1, melting welding is made At small distortion cannot be complete although the patent document can reduce the influence of distortion by the way of sizable quality It totally disappeared and remove；2, since fixed connecting part and housing base are directly welded together, and housing base and case lid are also same Sample is made using relatively thicker material, and is equally linked together using melting welding mode, therefore, fixed connecting part with it is whole A shell is to be rigidly connected, limited to the centrifugation of vibration, due to fixed connecting part cannot completely eliminate it is abnormal Become, the vibration for also having resulted in oscillating component full symmetric cannot offset, and vibration is caused to leak, it is difficult to obtain stable zero and Metering performance.

Utility model content

The purpose of this utility model is to provide a kind of coriolis mass flowmeters and its sensor module, existing to solve Caused by the Separation by vibration effect of Coriolis flowmeter sensor component oscillating component and non-vibration part is limited in technology It is difficult to obtain the defect of stable zero and metering performance.

For this purpose, in a first aspect, the utility model provides a kind of coriolis mass flowmeters sensor module, it is described Flowmeter has the upstream line connector for connecting upstream fluid pipeline and the downstream line for connecting downstream fluid pipeline Connector, the sensor module are installed in the shell of the flowmeter comprising：

Fluid flow pipe, have fluid input lines and fluid outlet line and be connected on the fluid input lines and Dual loop piping between fluid outlet line；

Vibration insulation structure is shaken including at least being fixed in the fluid flow pipe with the fluid flow pipe to be divided into First vibration piece of dynamic pipeline and non-vibration pipeline；

Increase weight structure, is arranged on the non-vibration pipeline, the weightening structure and the non-vibration pipeline and the shell Body does not contact；And

Connection structure, one end are fixedly connected on the non-vibration pipeline, and the other end is fixedly connected on the upstream line On connector and/or downstream line connector, so that the non-vibration pipeline and the corresponding upstream line connector and/or downstream tube It is flexible connection between road connector.

Preferably, by the weightening structure barycenter of the sensor module is deviated towards the non-vibration pipeline.

Preferably, which is characterized in that the weightening structure is the clump weight being fixedly mounted on the non-vibration pipeline.

Preferably, the material of the fluid flow pipe is one kind in stainless steel, Hastelloy, titanium alloy；And/or institute The material for stating clump weight is one kind in stainless steel, Hastelloy, titanium alloy, spheroidal graphite cast-iron.

Preferably, the fluid flow pipe is fixedly connected with the clump weight using welding or mechanical connection manner.

Preferably, described to be welded as soldering or argon arc welding.

Preferably, the mechanical connection is to be bolted.

Preferably, the fluid flow pipe is identical with the material of the clump weight.

Preferably, root setting of the clump weight far from the vibration pipeline on the non-vibration pipeline.

Preferably, the clump weight accounts on the non-vibration pipeline at a distance from the vibration pipeline root described non-shake The 30%-50% of the vertical development length of dynamic pipeline.

Preferably, the clump weight be that level is erected on the non-vibration pipeline it is outstanding drag, and described outstanding drag described The horizontal direction of non-vibration pipeline is symmetrical set.

Preferably, described hang is dragged as with certain thickness rectangular block.

Preferably, the length and width in the space that the minimum length and width dimensions of the rectangular block are formed with the non-vibration pipeline outer edge Size is consistent.

Preferably, the thickness of the rectangular block is 0.5-1.5 times of single conduit outer diameter of the non-vibration pipeline.

Preferably, the thickness of the rectangular block is 1 times of single conduit outer diameter of the non-vibration pipeline.

Preferably, the clump weight be that level is erected on the non-vibration pipeline it is outstanding drag, and described outstanding drag described The asymmetric setting of horizontal direction of non-vibration pipeline.

Preferably, the clump weight includes the sub- clump weight being separately positioned on the non-vibration pipeline of the left and right sides, both sides The sub- clump weight be symmetrical arranged in the horizontal direction.

Preferably, the dual loop piping include have fluent material input terminal and the first loop of the first connecting pin with And the second loop with fluent material output end and second connection end, first connecting pin are connected with the second connection end It is logical.

Preferably, the fluent material input terminal and fluent material output end are located in the same horizontal plane, and described hang is dragged Position on the non-vibration pipeline is located at the lower section of the horizontal plane.

Preferably, the flow direction according to fluent material in the fluid flow pipe, outstanding drag are equipped with for first ring First through hole, the second through-hole and the third through-hole that road is worn, and equipped with the fourth hole worn for second loop, the 5th Through-hole and the 6th through-hole, wherein the second through-hole and third through-hole of first loop are arranged in the outstanding end margin of delaying It the left and right sides and is symmetrical arranged, the fourth hole and fifth hole of second loop are arranged on the outstanding left side for dragging front edge Right both sides and be symmetrical arranged, the first through hole of first loop and the 6th through-hole of the second loop between other through-holes and It is symmetrical set.

Preferably, the connection structure includes：Tie-beam, the relatively described non-vibration pipeline is horizontally disposed, the tie-beam At least one axial end portion be fixedly connected with the corresponding upstream line connector or downstream line connector；Centre connection knot Structure, one end are fixedly connected with the clump weight, and the other end is fixedly connected with the tie-beam.

Preferably, the intermediate connection structure includes connecting pole, and the relatively described tie-beam is vertically arranged, the connecting pole one End is fixedly connected with the clump weight, and the other end is fixedly connected by an overarm with the tie-beam.

Preferably, the connecting pole is bolt, is set as two；Level of two bolts in the non-vibration pipeline Direction is symmetrical arranged.

Preferably, the connecting pole is an integral molding structure with the overarm.

Preferably, the intermediate connection structure is to be fixed in the fluid flow pipe and be located at first vibration isolation The second vibration piece below part, second vibration piece one end are fixedly connected with the non-vibration pipeline, the other end and the company Beam is connect to be fixedly connected.

Preferably, the tie-beam is tubular.

Preferably, the axial both ends of tubular tie-beam are fixed with corresponding upstream line connector and downstream line connector respectively Connection.

Preferably, tubular tie-beam includes the arc pressuring plate positioned at the fluid flow line front and rear sides, described in two The upper side and lower side of arc pressuring plate is respectively formed first by slot and second by slot, and the fluid flow pipe passes through described One passes through the tubular tie-beam by slot and second by slot.

Preferably, the curved edge at arc pressuring plate axial direction both ends and the corresponding upstream line connector or downstream The welding surface shape adaptation of pipe joint.

Preferably, the tie-beam is coaxially disposed with the upstream line connector and downstream line connector.

Preferably, the connection structure is to be fixed in fluid flow pipe and below first vibration piece Second vibration piece, second vibration piece have prolonging towards the corresponding upstream line connector and/or downstream line connector Extending portion, the extension are fixedly connected with the corresponding upstream line connector and/or downstream line connector.

Preferably, first vibration piece and the second vibration piece are the through-hole for being equipped with and being passed through for the fluid flow line Laminated structure, first vibration piece and the second vibration piece are fixedly connected by the through-hole with the fluid flow pipe.

Preferably, the weightening structure is that the non-vibration pipeline prolongs towards with what the vibration pipeline opposite direction extended Long pipe runs.

Preferably, the upstream line connector and the downstream line connector are fixed with the shell of the flowmeter respectively connects It connects；The other end of the connection structure is fixedly connected on the housing.

Preferably, the fluid flow pipe is integrally formed pipeline.

Preferably, the fluid input lines are in " S " type substantially, include being arranged and bending towards opposite along fluid flow direction First curved arc and the second curved arc.

Preferably, first curved arc and the second curved arc are corner bevelling arc.

Preferably, the bent arc radius of first curved arc is not more than the half of second bent arc radius.

Preferably, the fluid input lines further include be arranged between first curved arc and second curved arc and/ Or the rectilinear tubes between second curved arc and the dual loop piping.

Preferably, the fluid outlet line is arranged with the fluid input lines mirror symmetry.

Second aspect, the utility model provide a kind of coriolis mass flowmeters, including：

Shell；

Sensor module is installed on the enclosure interior；The sensor module is above-mentioned sensor module.

Preferably, further include being fixedly installed with the shell and positioned at the upstream line of the horizontal direction both sides of the shell Connector and downstream line connector, the upstream line connector are coaxially disposed with the downstream line connector；The upstream line connects First end is connect by the road with upstream flow, and the other end is connect with the fluid input lines；Downstream line connector one end with Downstream fluid pipeline connects, and the other end is connect with the fluid outlet line.

The advantages of the utility model：

1, sensor module provided by the utility model, first, fluid flow pipe do not have flow dividing structure, but are constructed For with concatenated dual loop piping.This kind of fluid flow pipe be not due to having flow dividing structure so that applies the fluid flow pipe Sensor module can be widely applied to have in the technical field of flow dividing structure coriolis flowmeter requirement, for example defend Raw type coriolis mass flowmeters；Secondly, the sensor module of the utility model is analyzed by theory of vibration isolation, by flowing Setting weightening structure and the upstream line connector for realizing non-vibration pipeline and flowmeter on the non-vibration pipeline of body flow duct And/or the connection structure being flexibly connected between downstream line connector so that the vibration pipeline and non-vibration pipeline of sensor module Separation by vibration, and can also flexibly adjust weightening structure weight and flexible connection mode, it is not necessary to use sizable matter Amount, you can meet vibration isolation condition, to alleviate the weight of entire sensor.The utility model on non-vibration pipeline by setting Weightening structure is set to adjust the center of gravity of sensor module, improves vibrational state, reduce non-vibration pipeline and vibrates pipeline Vibration coupling；In conjunction with the flexible connection between upper non-vibration pipeline and flowmeter shell, good Separation by vibration effect is obtained, Be conducive to flowmeter and obtain stable zero and excellent metering performance.

2, sensor module provided by the utility model, weightening structure is the counterweight being fixedly mounted on non-vibration pipeline Block, it is simple in structure, it is easily worked production, it is few that the production cost increases while obtaining balanced null point and excellent metering performance Perhaps, be conducive to marketing and volume production.

3, sensor module provided by the utility model, by setting clump weight and fluid flow pipe to same material Matter, and by being welded to connect, obtain good welding and physical property, be conducive to the stability and meter that improve sensor module Measure performance.

4, sensor module provided by the utility model, clump weight can also use heterogeneous material with fluid flow pipe, And be fixedly connected using mechanical system, mechanical means are various, and fixation is more flexible, and can reduce the ring caused by welding Border is polluted and human injury.

5, sensor module provided by the utility model, by by clump weight on the non-vibration pipeline far from vibration pipeline The junction of root and non-vibration pipeline) setting so that the root that clump weight distance is used as the vibration pipeline of flow measurement is remoter, The vibration isolating effect for vibrating pipeline and non-vibration pipeline is better, is arranged by this kind, is ensureing certain Targets of sensor module The clump weight that small quality can may be used down, has saved material, has reduced cost.

6, sensor module provided by the utility model is connected by fluid input lines in its fluid input and first It is equipped with the basic rectification pipeline in serpentine between end, has carried out rectification to entering the fluid before vibrating pipeline so that enter and shake The velocity field of dynamic pipeline substantially without non-central offset the problem of.In addition, the serpentine rectification pipeline of the utility model is not only real The effect that rectification is carried out to entering the fluid before vibrating pipeline is showed, and since serpentine rectification pipeline includes two radians The corner bevelling arc that angle is 90 degree so that the fluid flow direction of the fluid input of fluid input lines is hung down with fluid flow direction in vibration pipeline Directly, the fluid input is horizontally oriented, and vibration pipeline is in vertical direction, this is also coriolis mass flowmeters The basic demand of fluid flow pipe.

7, sensor module provided by the utility model, since it is an integral molding structure, compared to shunting The double loop pipeline of structure is not only easier to implement welding, but also can reduce required welding operation, reduces welding and makes At fluid flow pipe distortion.

Description of the drawings

Can be more clearly understood the feature and advantage of the utility model by reference to attached drawing, attached drawing be schematically without It is interpreted as carrying out any restrictions to the utility model, in the accompanying drawings：

Fig. 1 is the contour structures view of the coriolis mass flowmeters of the utility model embodiment；

Fig. 2 is the shell structure view for the coriolis mass flowmeters for being prescinded a part；

Fig. 3 is to be regarded according to the structure of the coriolis mass flowmeters of the utility model embodiment of Fig. 2 middle casing structures Figure；

Fig. 4 is the topology view of the fluid flow pipe of the coriolis mass flowmeters of the utility model embodiment；

Fig. 5 is the topology view of the coriolis mass flowmeters of another embodiment of the utility model；

Fig. 6 is the topology view of the fluid flow pipe of the coriolis mass flowmeters of another embodiment of the utility model；

Fig. 7 be another embodiment of the utility model coriolis mass flowmeters fluid flow pipe, weightening structure with And the topology view that connection structure is assembled together；

Fig. 8 is the topology view of the fluid flow pipe of the coriolis mass flowmeters of another embodiment of the utility model；

Fig. 9 is the outstanding structural schematic diagram dragged of the coriolis mass flowmeters of the utility model embodiment.

Reference numeral：

1- upstream line connectors；2- downstream line connectors；3- shells；31- upstream joints are open；32- downstream taps are open； 4- fluid flow pipes；41- fluid input lines；411- levels input pipeline section；The first curved arcs of 412-；The second curved arcs of 413-；414- Turn to curved arc；42- fluid outlet lines；421- horizontal output pipeline sections；47- vibrates pipeline；48- non-vibration pipelines；5- first every Shake part；The second vibration pieces of 6-；61- extensions；7- weightening structures；71- is outstanding to be dragged；711- first through hole；The second through-holes of 712-；713- Third through-hole；714- fourth holes；715- fifth holes；The 6th through-holes of 716-；72- clump weights；8- connection structures；81- connects Connect beam；811- arc pressuring plates；812- first passes through slot；813- second passes through slot；821- connecting poles；822- hangs oneself from a beam.

Specific implementation mode

The embodiments of the present invention are described in detail below in conjunction with attached drawing.

As shown in Figure 1-Figure 3, a kind of coriolis mass flowmeters are present embodiments provided comprising upstream line connector 1, downstream line connector 2, shell 3, fluid flow pipe 4, exciting bank, detection device, vibration insulation structure and weightening structure 7.Its In, the fluid flow pipe 4 is installed in the shell 3, and isolation mounting is installed in fluid flow pipe 4 with by fluid flow pipe 4 are divided into vibration pipeline 47 and non-vibration pipeline 48, are also equipped with exciting bank and detection device in fluid flow pipe 4, encourage Device is for driving vibration pipeline 47 to vibrate, and in fluent material ingress pipe, is allowed to the flow forward along pipe, then vibrating tube will be strong Compel fluid vibration in conjunction, fluid can give vibration pipeline 47 1 to hang down with its flow direction to revolt this forced vibration Straight reaction force, fluid inlet section pipe and fluid outlet section pipe can be variant in the time order and function of vibration, when this is called phase Between it is poor, detection device is then used to detect that the phase time is poor, so that it is determined that flowing through the mass flow of fluid flow pipe 4.The shell The both sides of body 3 form be adapted to the upstream line connector outer contour shape upstream joints opening 31, and with it is described under Swim pipe joint outer profile adaptation downstream tap opening 32, the upstream line connector 1, downstream line connector 2 respectively with institute Corresponding upstream joints opening 31, downstream tap opening 32 on shell 3 is stated to be welded to connect.In the following, in conjunction with attached drawing to the present embodiment Each sections of coriolis mass flowmeters be introduced.

First, the fluid flow pipe of the present embodiment 4 is introduced.

As shown in figure 4, the fluid flow pipe 4 of the present embodiment has for being connect with upstream line connector 1 to receive fluid The fluid input lines 41 of material, for connect with downstream line connector fluid outlet line 42 to export fluent material and The dual loop piping being connected between the fluid input lines 41 and the fluid outlet line 42.The dual loop tube The second loop that road includes the first loop being connect with the fluid input lines 41, is connect with the fluid outlet line 42, And it is connected to the crossover line between the first loop and the second loop, first loop is parallel with second loop to be set It sets, the plane residing for specially described first loop is parallel with the plane residing for second loop.

By foregoing description it is found that the fluid flow pipe 4 of the present embodiment is a kind of double-tube type fluid flow pipe 4, it is integrated It is molded pipeline, there is advantage identical with double-tube type fluid hose in the prior art, also, the fluid flow pipe 4 of the present embodiment Since it is the dual loop piping being arranged in series, as one pipe by unique pipeline around to being formed by double loop, because This its there is no flow dividing structure, disclosure satisfy that cannot have in the technical field of flow dividing structure coriolis mass flowmeters requirement, Such as hygiene-type coriolis mass flowmeters.Since fluid flow pipe 4 does not have flow dividing structure, do not have to implement flow dividing structure Welding operation, therefore compared with the prior art in flow dividing structure double-tube type fluid flow pipe 4, the fluid stream of the present embodiment Dynamic pipe 4 is easier to implement welding, and can reduce required welding operation.

The both ends of the fluid flow pipe 4 are separately connected upstream line connector 1 and downstream line connector 2, concrete structure For from upstream line connector 1 to downstream line connector 2 successively include fluid input lines 41, concatenated dual loop piping and Fluid outlet line 42.One end of the fluid input lines 41 is fluid input, and the other end is the first connecting pin；The stream One end of body output pipe 42 is fluid exit, and the other end is second connection end；The dual loop is connected to described first Between connecting pin and second connection end.

In the present embodiment, vibration insulation structure is installed in the fluid flow pipe 4, is separated into and is located at by vibration insulation structure Vibration pipeline 47 on vibration insulation structure and the non-vibration pipeline 48 under vibration insulation structure.Due to the input and output side of fluid To angled setting between vibration pipeline 47, therefore fluid is inevitable on the first loop piping entered before vibrating pipeline 47 There are one section steering curved arc 414, and just because of turn to curved arc 414 presence so that fluid through steering curved arc 414 when, Fluid inside slows down, and lateral fluid speedup, fluid flow rate center is moved outward, is similar to parabolical velocity flow profile, fluid The outside of curved arc can be thrown to because of centrifugal force in turning.Therefore, the fluid of vibration pipeline 47 is flowed into, flow velocity field distribution is inclined The parabola of the heart leads to the change for vibrating 47 sensitivity of pipeline, influences the measurement performance for vibrating pipeline 47.

In order to solve defect existing for above-mentioned fluid flow pipe 4, the fluid input lines of the fluid flow pipe 4 of the present embodiment 41 are equipped with the basic rectification pipeline in serpentine between its fluid input and the first connecting pin, which Fluid flow direction includes bending towards opposite the first curved arc 412 and the second curved arc 413, and first curved arc 412 is close to the stream Body input terminal is arranged, and second curved arc 413 is arranged close to first connecting pin.Second curved arc 413 bend towards and institute It is identical to state bending towards for steering curved arc 414, the second curved arc 413 and steering curved arc 414 are first curved arcs 412 to right bended arc It is curved arc to the left.Bias on the right side of curved arc can occur for fluid fluid flow fields when by the first curved arc 412, then pass through second Curved arc 413 and steering curved arc 414 carry out rectification so that fluid flow fields are located substantially when entering vibration pipeline 47 by three curved arcs In the case of non-central offset, the uniformity of fluid flow fields is improved.The present embodiment passes through on fluid input lines 41 Serpentine rectification pipeline, which is arranged, realizes the fluid progress rectification that pipeline 47 is vibrated to entering so that enters in vibration pipeline 47 Evenly, this is conducive to the measurement performance for improving vibration pipeline 47 to velocity field.

Preferably, first curved arc 412, the second curved arc 413 and steering curved arc 414 are the corner bevelling that radian is 90 degree Arc.In the present embodiment, the bent arc radius of second curved arc 413 is equal with the steering bent arc radius of curved arc 414, described The bent arc radius of first curved arc 412 is equal to the half of 413 radius of the second curved arc.This kind of pipeline uniqueness around to not Only realize the effect that rectification is carried out to entering the fluid before vibrating pipeline 47, and the first curved arc 412, the second curved arc 413 And turn to curved arc 414 and carried out 90 degree steerings respectively so that the fluid of the fluid input of fluid input lines 41 flow to and Vibrating fluid flow direction in pipeline 47, vertically, the fluid input is horizontally oriented, and vibration pipeline 47 is in vertical direction, this It is also the basic demand of the fluid flow pipe 4 of coriolis mass flowmeters.As the preferred embodiment in the utility model, this implementation The first curved arc 412 and the second curved arc 413 of the fluid input lines 41 of example be two and continuously bend towards opposite curved arc, and second Curved arc 413 is also to be directly connected to curved arc 414 is turned to.That is, the present embodiment is entirely to be realized by curved arc structure Rectification effect.As the preferred embodiment of the utility model, the fluid outlet line 42 exists with the fluid input lines 41 Mirror image is arranged in horizontal direction, i.e., a serpentine pipeline also is provided on the fluid outlet line 42, this kind is arranged so that fluid Flow duct 4 is a symmetrical structure in the horizontal direction in the shell 3 of coriolis mass flowmeters.

The fluid input lines 41 of the present embodiment further include the horizontal input pipeline section being connect with upstream fluid pipeline 411, fluid outlet line 42 further includes the horizontal output pipeline section 421 being connect with downstream fluid pipeline, the horizontal input pipeline section 411 are located at the horizontal output pipeline section 421 on same axis.But the utility model is not limited to be located on same axis, In other embodiment, the horizontal input pipeline section 411 can also be in same level but not with horizontal output pipeline section 421 On the same axis.

In the present embodiment, one kind in the material selection stainless steel, Hastelloy, titanium alloy of the fluid flow pipe 4.

As a kind of mode of texturing of the utility model rectifying tube, the fluid input lines 41 include that setting is curved first Straight line pipeline between straight line pipeline and the second curved arc 413 between arc 412 and the second curved arc 413 and steering curved arc 414, Two straight line pipelines can also play the role of to fluid rectification, i.e. uniform flow field；In view of two rectilinear tubes Road also plays rectified action, in order to ensure that the fluid flow rate for entering vibration pipeline 47 is uniform, the curved arc of first curved arc 412 Radius be less than second curved arc 413 bent arc radius half, the bent arc radius of second curved arc 413 with described turn Bent arc radius to curved arc 414 is equal.

It should be noted that one of them can also be only arranged in above-mentioned two straight line pipeline, when only there are one straight line pipelines When, need the bent arc radius to the first curved arc 412 to be adjusted, but the bent arc radius of the first curved arc 412 is still less than The half of two curved arcs, 413 radius.

As a kind of mode of texturing of the utility model rectifying tube, first curved arc 412, the second curved arc 413 and turn Can also be the changed not rounded curved arc of curvature to curved arc 414, the difficulty of processing of fluid flow pipe 4 can add in the case of this kind Greatly, but can still play the role of carrying out rectification to the fluid for entering vibration pipeline 47.

Then, the weightening structure 7 of the present embodiment is introduced.

As shown in figure 3, the weightening structure 7 of the present embodiment is fixedly mounted at the clump weight on the non-vibration pipeline 48, One kind in the material selection stainless steel of the clump weight, Hastelloy, titanium alloy, spheroidal graphite cast-iron.Preferably, the clump weight It is identical as the material of the fluid flow pipe 4, it is realized and is fixed by welding manner.The welding manner can be soldering or argon One kind in arc-welding.

In the present embodiment, as shown in figure 3, specifically, the clump weight is that level is erected on non-vibration pipeline 48 It is outstanding to drag 71, and described hang drags 71 to be symmetrical set in the horizontal direction of the non-vibration pipeline 48, specifically, due to this Fluid flow pipe 4 in embodiment is dual loop piping, therefore described outstanding drags 71 left end and the first loop of left end and the The non-vibration pipeline 48 of Second Ring Road is fixedly connected, and described hang drags 71 right end and the first loop of right end and the non-of the second loop to shake Dynamic pipeline 48 is fixedly connected.By the setting of clump weight, the weight of the non-vibration part of sensor module is increased, this is conducive to The oscillating component of sensor module is isolated with non-vibration part, is conducive to the metering performance for improving sensor module, is obtained steady Zeroing.And counterweight block structure is simple, handling ease, and it is at low cost, that is to say, that the present embodiment was both real by adding clump weight Show greatly improving for metering performance, and increased cost also very little, is conducive to marketing and volume production.

In the present embodiment, as shown in figure 3, it is described it is outstanding drag 71 for certain thickness rectangular block, the rectangular block Minimum length and width dimensions are consistent with the length and width dimensions in space that 48 outer edge of non-vibration pipeline is formed.That is, the square The minimum length size of shape block can not be less than the spacing of the outermost end of left and right sides non-vibration pipeline 48, and the rectangular block is most Small width dimensions can not be less than the spacing of the outermost end of former and later two non-vibration pipelines 48 positioned at the same side.Work as Coriolis It when the temperature in use of mass flowmenter is higher, drags the thermal capacitance of 71 and fluid flow pipe 4 inconsistent if hanged, 71 Hes can be dragged outstanding It is directly deformed stress between fluid flow pipe 4, to influence performance；And the present embodiment passes through above-mentioned setting so that outstanding to drag The thermal capacitance of 71 thermal capacitance and fluid flow pipe 4 is almost the same, to ensure performance.

As the preferred embodiment of the utility model, the thickness of the rectangular block is outer with the single non-vibration pipeline 48 Caliber is equal.But the utility model is not limited to equal, in other embodiments, the thickness of the rectangular block can also be single 0.5 times, 0.8 times, 1.2 times or 1.5 times of the outer tube diameter of non-vibration pipeline 48.

In the present embodiment, described hang drags 71 root far from the vibration pipeline 47 on the non-vibration pipeline 48 to set Set, analyzed by theory of vibration isolation, in the case where reaching identical metering performance, it is described it is outstanding drag 71 on non-vibration pipeline 48 distance The root position of the vibration pipeline 47 is remoter, and the outstanding quality for dragging 71 of use is smaller, also more material saving.Specifically, in this reality It applies in example, it is described outstanding to drag 71 on the non-vibration pipeline 48 at a distance from 47 root of vibration pipeline to account for the non-vibration pipeline 48 perpendicular The 50% of straight development length.But the utility model is not limited to 50%, in other embodiments, described outstanding to drag 71 in the non-vibration Accounted at a distance from vibration pipeline 47 root on pipeline 48 the 30% of the 48 vertical development length of non-vibration pipeline either 40% or 45%.

As shown in figure 9, described hang drags 71 to be symmetrical arranged in the horizontal direction relative to the fluid flow pipe 4.According to stream Flow direction of the body material in the fluid flow pipe 4, described hang drag 71 to be equipped with the first through hole worn for first loop 711, the second through-hole 712 and third through-hole 713, and equipped with fourth hole 714, the fifth hole worn for second loop 715 and the 6th through-hole 716, wherein the second through-hole 712 and third through-hole 713 setting of first loop outstanding drag 71 described It the left and right sides of back edge and is symmetrical arranged, the fourth hole 714 and fifth hole 715 of second loop are arranged described It is outstanding to drag the left and right sides of 71 front edges and be symmetrical arranged, the first through hole 711 of first loop and the 6th of the second loop the Through-hole 716 is between other through-holes and is symmetrical set.Sensor module is symmetrical structure, is conducive to obtain better meter Measure performance.

A kind of mode of texturing of weightening structure 7 as the present embodiment, as shown in figure 5, the clump weight can also be point Body structure is equipped with one piece of sub- clump weight 72 on the non-vibration pipeline 48 of the left and right sides, which is fixedly mounted It is symmetrical arranged on two non-vibration pipelines 48 positioned at homonymy, and relative to two non-vibration pipelines 48；Positioned at not homonymy Two sub- clump weights 72 in 48 horizontal direction of non-vibration pipeline be symmetrical arranged.

A kind of mode of texturing for the structure 7 that increases weight as the present embodiment, as shown in fig. 6, the weightening structure 7 can also pass through The mode of non-clump weight realizes weightening, for example, the weightening structure 7 be non-vibration pipeline 48 towards with vibration 47 phase negative side of pipeline To the extension pipeline of extension.The work of the non-vibration part weightening of sensor module can be also realized by the extension of non-vibration pipeline 48 With.

Furthermore the connection structure of the present embodiment 8 is introduced.

In the present embodiment, on the basis of increasing weight to non-vibration part, by by non-vibration part and coriolis flow Realize flexible connection in 3 part of shell of meter so that the metering performance of sensor module, which has, to be obviously improved.

As the preferred embodiment in the utility model, as shown in figure 3, the connection structure 8 of the present embodiment includes 81 He of tie-beam Intermediate connection structure, the relatively described non-vibration pipeline 48 of the tie-beam 81 are horizontally disposed, the tie-beam 81 it is at least one Axial end portion is fixedly connected with the corresponding upstream line connector 1 or downstream line connector 2；The one of the intermediate connection structure End drags 71 to be fixedly connected with described hang, and the other end is fixedly connected with the tie-beam 81.

Specifically, the tie-beam 81 is tubular, the axial both ends of tubular tie-beam 81 respectively with corresponding upstream line Connector 1 is fixedly connected with downstream line connector 2.It is fixedly connected with mode preferably use and is welded to connect.Tubular tie-beam 81 includes Arc pressuring plate 811 positioned at 4 tunnel front and rear sides of the fluid flow pipe, the upper side and lower side of two arc pressuring plates 811 First is respectively formed by slot 812 and second by slot 813, the fluid flow pipe 4 passes through slot 812 and by described first Two pass through the tubular tie-beam 81 by slot 813.Tubular tie-beam 81 and upstream line connector 1 and downstream line connector 2 are same Axis is arranged.

Tubular tie-beam 81 is connected to be fixedly mounted on non-vibration pipeline 48 outstanding by intermediate connection structure and dragged on 71. As the preferred embodiment of the utility model, the intermediate connection structure is the connecting pole that the tie-beam 81 is vertically arranged relatively 821, one end of the connecting pole 821 drags 71 to be fixedly connected with described hang, and the other end passes through an overarm 822 and the tie-beam 81 It is fixedly connected.Under the outstanding axis for dragging 71 to be located at the horizontal input pipeline section 411 and horizontal output pipeline section 421.The company It can be integrated formed structure that column 821, which is connect, with overarm 822, can also be separate structure.If being vibrated on non-vibration pipeline 48, Then vibration is passed to first and is secured to the outstanding of setting and drags on 71, it is outstanding to drag 71 vibration is passed through 821 company of passing to of connecting pole again It connects on beam 81, tie-beam 81 again passes to vibration in upstream and downstream pipe joint 2, and 71, connecting pole 821, overarm 822 are dragged by outstanding And the setting of tie-beam 81, it extends non-vibration pipeline 48 and vibrates the path leaked, be conducive to further increase fluid flowing The measurement performance of pipe 4.

The edge at the axial both ends of two arc pressuring plates 811 of tubular tie-beam 81 is arc, the curved edge with it is corresponding Upstream line connector 1 or downstream line connector 2 welding surface shape adaptation, it is easy to operate and can be real in welding in this way Now firm connection.

A kind of mode of texturing of connection structure 8 as the present embodiment is set as shown in fig. 7, the connection structure 8 is fixation The second vibration piece 6 in fluid flow pipe 4 and below the first vibration piece 5 is set, second vibration piece 6 has towards right The extension 61 of the upstream line connector 1 and/or downstream line connector 2 answered, the extension 61 with it is corresponding it is described on Trip pipe joint 1 and/or downstream line connector 2 are fixedly connected.Further specifically, the extension and corresponding upstream line Connector 1 and/or downstream line connector 2 are fixedly connected and are welded to connect.

As the alternative embodiment of the present embodiment, the connecting pole 821 of the intermediate connection structure can also be bolt, real During border is implemented, bolt is set as two, and the lower ends of two bolts is by being connected through a screw thread or nut drags 71 fixations to connect with outstanding It connects, the upper end of two bolts is fixed on by screw thread or welding manner in overarm 822, and overarm 822 is fixedly connected on tubular company It connects on beam 81.

As the alternative embodiment of the present embodiment, the tie-beam 81 or non-tubular structure constitute tie-beam 81 connecting plate may be non-arcuate structure, and in a wherein alternative embodiment, the axial edge of connecting plate is straight line Edge.The extension shape of connecting plate in the axial direction can also be linear type or shaped form.

Finally, the vibration insulation structure of the present embodiment is introduced.

As shown in Fig. 3-Fig. 8, the vibration insulation structure includes being welded in the fluid flow pipe 4 to flow the fluid Pipe 4 be divided into the first vibration piece 5 of vibration pipeline 47 and non-vibration pipeline 48 and positioned at the lower section of first vibration piece 5 second Vibration piece 6, first vibration piece, 5 and second vibration piece 6 are the piece for being equipped with the through-hole passed through for 4 tunnel of fluid flow pipe Shape structure, first vibration piece, 5 and second vibration piece 6 are welded to connect by the through-hole and the fluid flow pipe 4.

It should be noted that the first vibration isolation piece, the second vibration isolation piece are not limited to weld with the mode that is fixedly connected of fluid flow pipe 4 It connects, can also be fixed using mechanical connection manner.

The quantity of the vibration piece is also not necessarily limited to two, in other embodiments, can also be in the lower section of the second vibration piece 6 Third vibration piece or even the 4th vibration piece are set.

Although being described in conjunction with the accompanying the embodiment of the utility model, those skilled in the art can not depart from Various modifications and variations can be made in the case of the spirit and scope of the utility model, and such modifications and variations are each fallen within by appended Within claim limited range.

Claims (43)

1. a kind of coriolis mass flowmeters sensor module, which is characterized in that the flowmeter has for connecting Swim the upstream line connector of fluid line and the downstream line connector for connecting downstream fluid pipeline, the sensor module peace In shell loaded on the flowmeter comprising：

Fluid flow pipe has fluid input lines and fluid outlet line and is connected on the fluid input lines and fluid Dual loop piping between output pipe；

Vibration insulation structure, including at least being fixed in the fluid flow pipe so that the fluid flow pipe is divided into vibrating tube First vibration piece on road and non-vibration pipeline；

Increase weight structure, is arranged on the non-vibration pipeline, and the weightening structure and the non-vibration pipeline and the shell are not Contact；And

Connection structure, one end are fixedly connected on the non-vibration pipeline, and the other end is fixedly connected on the upstream line connector And/or on downstream line connector, so that the non-vibration pipeline connects with the corresponding upstream line connector and/or downstream line It is flexible connection between head.

2. sensor module according to claim 1, which is characterized in that make the sensor by the weightening structure The barycenter of component is deviated towards the non-vibration pipeline.

3. sensor module according to claim 1, which is characterized in that the weightening structure is described non-to be fixedly mounted on The clump weight of vibrating tube road.

4. sensor module according to claim 3, which is characterized in that the material of the fluid flow pipe be stainless steel, One kind in Hastelloy, titanium alloy；And/or the material of the clump weight is stainless steel, Hastelloy, titanium alloy, spheroidal graphite casting One kind in iron.

5. sensor module according to claim 4, which is characterized in that the fluid flow pipe is used with the clump weight Welding or mechanical connection manner are fixedly connected.

6. sensor module according to claim 5, which is characterized in that described to be welded as soldering or argon arc welding.

7. sensor module according to claim 5, which is characterized in that the mechanical connection is to be bolted.

8. according to the sensor module described in any one of claim 3-7, which is characterized in that the fluid flow pipe and described The material of clump weight is identical.

9. according to the sensor module described in any one of claim 3-7, which is characterized in that the clump weight non-shakes described Root setting far from the vibration pipeline on dynamic pipeline.

10. sensor module according to claim 9, which is characterized in that the clump weight is on the non-vibration pipeline The 30%-50% of the vertical development length of non-vibration pipeline is accounted at a distance from the vibration pipeline root.

11. according to the sensor module described in any one of claim 3-7, which is characterized in that the clump weight is level frame Be located on the non-vibration pipeline it is outstanding drag, and described outstanding the horizontal direction in the non-vibration pipeline is dragged to be symmetrical set.

12. sensor module according to claim 11, which is characterized in that described hang is dragged as with certain thickness rectangle Block.

13. sensor module according to claim 12, which is characterized in that the minimum length and width dimensions of the rectangular block and institute The length and width dimensions for stating the space of non-vibration pipeline outer edge formation are consistent.

14. sensor module according to claim 12, which is characterized in that the thickness of the rectangular block is the non-vibration 0.5-1.5 times of the single conduit outer diameter of pipeline.

15. sensor module according to claim 14, which is characterized in that the thickness of the rectangular block is the non-vibration 1 times of the single conduit outer diameter of pipeline.

16. according to the sensor module described in any one of claim 3-7, which is characterized in that the clump weight is level frame Be located on the non-vibration pipeline it is outstanding drag, and the outstanding asymmetric setting of horizontal direction dragged in the non-vibration pipeline.

17. according to the sensor module described in any one of claim 3-7, which is characterized in that the clump weight includes difference Sub- clump weight on the non-vibration pipeline of the left and right sides is set, and the sub- clump weight of both sides is symmetrical arranged in the horizontal direction.

18. sensor module according to claim 11, which is characterized in that the dual loop piping includes and the stream First loop of body intake line connection, the second loop for being connect with the fluid outlet line, residing for first loop Plane is parallel with the plane residing for the second loop, and first loop is connect with second loop by crossover line.

19. sensor module according to claim 18, which is characterized in that the fluid input lines have and upstream flow The horizontal input pipeline section of body pipeline connection, the fluid outlet line have the horizontal output tube being connect with downstream fluid pipeline Section, the horizontal input pipeline section are located at the horizontal output tube section on same axis.

20. sensor module according to claim 19, which is characterized in that described hang is dragged under the axis.

21. sensor module according to claim 18, which is characterized in that according to fluent material in the fluid flow pipe In flow direction, it is described it is outstanding drag equipped with first through hole, the second through-hole and the third through-hole worn for first loop, and be equipped with Fourth hole, fifth hole and the 6th through-hole worn for second loop, wherein the second through-hole of first loop and Third through-hole is arranged in the left and right sides of the outstanding end margin of delaying and is symmetrical arranged, the fourth hole of second loop and the Five through-holes are arranged in the outstanding left and right sides for dragging front edge and arranged symmetrically, the first through hole and second of first loop 6th through-hole of loop between other through-holes and is symmetrical set.

22. according to the sensor module described in any one of claim 3-7, which is characterized in that the connection structure includes：

Tie-beam, the relatively described non-vibration pipeline is horizontally disposed, at least one axial end portion of the tie-beam and corresponding institute It states upstream line connector or downstream line connector is fixedly connected；

Intermediate connection structure, one end are fixedly connected with the clump weight, and the other end is fixedly connected with the tie-beam.

23. sensor module according to claim 22, which is characterized in that the intermediate connection structure includes

Connecting pole, the relatively described tie-beam are vertically arranged, and described connecting pole one end is fixedly connected with the clump weight, and the other end is logical An overarm is crossed to be fixedly connected with the tie-beam.

24. sensor module according to claim 23, which is characterized in that the connecting pole is bolt, is set as two； Two bolts are symmetrical arranged in the horizontal direction of the non-vibration pipeline.

25. sensor module according to claim 24, which is characterized in that the connecting pole is integrated into the overarm Type structure.

26. sensor module according to claim 22, which is characterized in that the intermediate connection structure is to be fixed at The second vibration piece in the fluid flow pipe and below first vibration piece, second vibration piece one end with it is described Non-vibration pipeline is fixedly connected, and the other end is fixedly connected with the tie-beam.

27. sensor module according to claim 22, which is characterized in that the tie-beam is tubular.

28. sensor module according to claim 27, which is characterized in that distinguish at the axial both ends of tubular tie-beam It is fixedly connected with corresponding upstream line connector and downstream line connector.

29. sensor module according to claim 27, which is characterized in that tubular tie-beam includes being located at the stream The arc pressuring plate of body flow line front and rear sides, the upper side and lower side of two arc pressuring plates are respectively formed first and pass through slot With second by slot, the fluid flow pipe passes through the tubular tie-beam by slot and second by described first by slot.

30. sensor module according to claim 29, which is characterized in that the arc at arc pressuring plate axial direction both ends Edge and the corresponding upstream line connector or the welding surface shape adaptation of downstream line connector.

31. according to the sensor module described in any one of claim 23-30, which is characterized in that the tie-beam with it is described Upstream line connector and the coaxial arrangement of downstream line connector.

32. according to the sensor module described in any one of claim 1-7, which is characterized in that the connection structure is to fix It is arranged in fluid flow pipe and the second vibration piece below first vibration piece, second vibration piece has direction The extension of the corresponding upstream line connector and/or downstream line connector, the extension and the corresponding upstream tube Road connector and/or downstream line connector are fixedly connected.

33. sensor module according to claim 26, which is characterized in that first vibration piece and the second vibration piece are equal For the laminated structure equipped with the through-hole passed through for the fluid flow line, first vibration piece and the second vibration piece pass through institute Through-hole is stated to be fixedly connected with the fluid flow pipe.

34. sensor module according to claim 1, which is characterized in that the weightening structure is the non-vibration pipeline Towards the extension pipeline extended with the vibration pipeline opposite direction.

35. sensor module according to claim 1, which is characterized in that the upstream line connector and the downstream tube Road connector is fixedly connected with the shell of the flowmeter respectively；The other end of the connection structure is fixedly connected on the shell On body.

36. according to the sensor module described in any one of claim 1-7, which is characterized in that the fluid flow pipe is one Body formed pipeline.

37. according to the sensor module described in any one of claim 1-7, which is characterized in that the fluid input tube roadbed This is in " S " type, includes being arranged along fluid flow direction and bending towards opposite the first curved arc and the second curved arc.

38. according to the sensor module described in claim 37, which is characterized in that first curved arc and the second curved arc are circle Curved arc.

39. according to the sensor module described in claim 38, which is characterized in that the bent arc radius of first curved arc is not more than The half of second bent arc radius.

40. according to the sensor module described in claim 37, which is characterized in that the fluid input lines further include that setting exists Straight line between first curved arc and second curved arc and/or between second curved arc and the dual loop piping Pipe.

41. according to the sensor module described in any one of claim 1-7, which is characterized in that the fluid outlet line with The fluid input lines mirror symmetry setting.

42. a kind of coriolis mass flowmeters, including：

Shell；

Sensor module is installed on the enclosure interior；

It is characterized in that, the sensor module is the sensor module described in any one of claim 1-41.

43. coriolis mass flowmeters according to claim 42, which is characterized in that further include being fixed with the shell It is arranged and positioned at the upstream line connector and downstream line connector of the horizontal direction both sides of the shell, the upstream line connector It is coaxially disposed with the downstream line connector；Upstream line connector one end is connect by the road with upstream flow, the other end and institute State fluid input lines connection；Downstream line connector one end is connect with downstream fluid pipeline, and the other end and the fluid are defeated Go out piping connection.