CN208847265U - The effective support chip of the flow of double-tube type coriolis mass flowmeters - Google Patents

Abstract

This disclosure relates to a kind of effective support chip of flow of double-tube type coriolis mass flowmeters, it includes the first component and second component, wherein, the first component includes the inner peripheral surface formed and running through the hole of the first component along first direction, second component can be fitted in the hole of the first component and the peripheral surface including that can cooperate with the inner peripheral surface of the first component, the inner peripheral surface and the peripheral surface cooperate to define second party two circular holes spaced upwardly, wherein, second direction is perpendicular to first direction and parallel with the imaginary centres line of two circular holes, at least one groove for extending in a first direction and running through the first component is formed in the inner peripheral surface, to allow the opening size in the hole for making the first component by the variation of the opening size of at least one groove correspondingly to change.As a result, support chip can be easily fitted into flowtube, while the entire gap between circular hole and flowtube can also be decreased to meet brazing quality requirement.

Description

The effective support chip of the flow of double-tube type coriolis mass flowmeters

Technical field

The utility model relates to the effective support chips of the flow of double-tube type coriolis mass flowmeters.

Background technique

This part provides background information related with the utility model, but these information not necessarily constitute existing skill Art.

Coriolis mass flowmeters are that the principle based on Coriolis force critically to measure flows through flowmeter flowtube Fluid mass flow instrument.In certain coriolis mass flowmeters, use two extend side by side with cantilever Form is mounted on the flowtube on the manifold of coriolis mass flowmeters.When there is no fluid to flow through in flowmeter, flowtube It is vibrated toward each other under the action of driver with the intrinsic frequency of flowtube and each point in flowtube is shaken with identical phase It is dynamic.When fluid flows through flowtube, flowtube is reversely with each other under the action of Coriolis force to be reversed and in flowtube Each point has different phases, carries out the measurement to the mass flow of fluid as a result,.Support is further typically provided in flowtube Piece, support chip provide new shaft for the vibration of flowtube, and the shaft of vibration is made to leave flowtube in Coriolis mass flow Pad on the menifold of meter, and make flowtube above-mentioned vibration frequency with for example by being equipped with Coriolis mass flow The frequency separation of the vibration for the flowtube that the vibration of the pipeline of meter is excited.

For typical double-tube type coriolis mass flowmeters, there are two circles for common support chip setting Hole, two flowtubes are inserted through two circular holes respectively, so that support chip is nested in flowtube then to pass through soldering It is fixed in flowtube.For some flowtube designs with bending region, as shown in Figure 1, support chip 100 may need to wear The bending region 200 of overcurrent buret is installed or even support chip 100 is also possible to be installed in relatively flowtube bending Region.But since cross section of the flowtube 300 at bending region is usually non-circular, e.g. oval, because And at the bending region of flowtube 300, this non-circular cross-sectional shape of flowtube 300 makes it difficult to support chip 100 are successfully installed in flowtube 300, alternatively, uneven by generating between the circular hole of support chip 100 and flowtube 300 Gap, as shown in Figure 2.

For the ease of installation, in the design of existing support chip, it will usually by the enlarged-diameter of circular hole, and in support chip quilt The gap between circular hole and flowtube is filled up by addition filling in stainless steel paillon after being nested in flowtube.However, such as Shown in Fig. 3, the mode of above-mentioned expansion circular hole further increases the local gap between circular hole and flowtube 300 and is difficult to lead to The mode for crossing filling stainless steel paillon 400 is wanted to make the entire gap between circular hole and flowtube be decreased to meet brazing quality It asks, and clog stainless steel paillon to bring the increase in working hour and technology difficulty, and is relatively difficult to guarantee the consistency of production, make to produce Product precision itself reduces.Flowtube can be easily fitted into therefore, it is necessary to one kind while can also will be between circular hole and flowtube Entire gap is decreased to meet the support chip of brazing quality requirement.

Utility model content

The overall summary of this part offer disclosure, rather than comprehensive public affairs of full scope or all features to the disclosure It opens.

The disclosure is designed to provide a kind of support chip with improvement structure, which can be easily fitted into stream Buret, while the entire gap between circular hole and flowtube can also be decreased to meet brazing quality requirement.

According to one aspect of the disclosure, a kind of effective support of flow of double-tube type coriolis mass flowmeters is proposed Piece.The support chip is characterized in that including the first component and second component, wherein the first component may include by along first party The inner peripheral surface that is formed to the hole through the first component, second component can be fitted in the hole of the first component and including can With the peripheral surface cooperated with the inner peripheral surface of the first component, wherein the inner peripheral surface of the first component and the periphery of second component Surface can cooperate to define second party two circular holes spaced upwardly, wherein second direction perpendicular to first direction and with The imaginary centres line of two circular holes is parallel, also, is formed in the inner peripheral surface of the first component and extends in a first direction and pass through At least one groove of the first component is worn, to allow to make by the variation of the opening size of groove the opening in the hole of the first component Size correspondingly changes.

In some embodiments, two circular holes can have identical diameter.

In some embodiments, it could be formed in the inner peripheral surface of the first component about following axis mirror symmetries Multiple grooves: the axis extends and passes through the imagination of two circular holes along the third direction vertical with first direction and second direction The midpoint of the line of centres.

In some embodiments, the inner peripheral surface of the first component may include semicircular first inner surface and second Inner surface and straight third inner surface and the 4th inner surface, wherein third inner surface and the 4th inside table Each of face can extend to the second inner surface from the first inner surface, and the peripheral surface of second component can be with Including semicircular first outer surface and the second outer surface and straight third outer surface and the 4th outer surface, In, each of third outer surface and the 4th outer surface can extend to the second outside table from the first outer surface Face, when second component is fitted in the hole of the first component, third inner surface is connected to third outer surface, the 4th inside Surface is connected to the 4th outer surface, also, the first inner surface and the first outer surface limit a circle in two circular holes Hole, and the second inner surface and the second outer surface limit another circular hole in two circular holes.

In some embodiments, groove can be set on one of the first inner surface and the second inner surface.

In some embodiments, to be respectively arranged at least one on the first inner surface and the second inner surface recessed Slot, to allow: opening size of each circular hole on third direction in two circular holes can pass through the opening size of groove Reduce and reduces, and/or, the opening size of each circular hole in a second direction in two circular holes can pass through groove The reduction of opening size and reduce, wherein third direction is perpendicular to first direction and second direction.

In some embodiments, at the part of the first inner surface being connect with third inner surface and first A groove can be respectively arranged at the part of inner surface connecting with the 4th inner surface, also, in the second inside table At the part being connect with third inner surface in face and at the part of the second inner surface being connect with the 4th inner surface A groove can be respectively arranged with.

In some embodiments, at the center portion of the first inner surface and at the center portion of the second inner surface A groove can be respectively arranged with.

In some embodiments, multiple grooves of equidistant apart can be set on the first inner surface, and And multiple grooves of equidistant apart can be set on the second inner surface.

It in some embodiments, can at least one of the first outer surface of second component and the second outer surface To be provided at least one lateral slot.

According to the disclosure, by the way that support chip is designed to inner circumferential two-piece type and by the first component in support chip Groove is set on surface, support chip is enabled to be easily fitted into flowtube, while can also will be between circular hole and flowtube Entire gap is decreased to meet brazing quality requirement, without the deformation bring technological problems with worry about flowtube.

By the detailed description below in conjunction with attached drawing to the illustrative embodiments of the disclosure, the features described above of the disclosure and Advantage and other feature and advantage will be apparent from.

Detailed description of the invention

What is carried out by referring to accompanying drawing is described in detail below, and the feature and advantage of the disclosure will become better understood by, In the accompanying drawings:

Fig. 1 is a kind of perspective view of the flowtube of typical double-tube type coriolis mass flowmeters, wherein the prior art Support chip be mounted near the bending region of flowtube；

Fig. 2 shows the support chip at the bending region in flowtube in a manner of cross-sectional view；

Fig. 3 shown in a manner of cross-sectional view by press fitting after be still deposited in support chip circular hole and flowtube it Between gap；

Fig. 4 is the plan view according to the support chip of embodiment of the present disclosure, wherein the first component of support chip and second Component separation；

Fig. 5 is the perspective view according to the support chip of embodiment of the present disclosure, wherein the first component of support chip and second Component separation；

Fig. 6 is the plan view according to the support chip of embodiment of the present disclosure, wherein the second component of support chip is fitted In the first component；

Fig. 7 is to show the signal for the process being installed in flowtube according to the support chip of embodiment of the present disclosure Figure；And

Fig. 8 is to show the perspective view of the support chip of another embodiment according to the disclosure.

Specific embodiment

The disclosure is described in detail by means of illustrative embodiments with reference to the accompanying drawings.It should be noted that this It is disclosed described in detail below merely for the sake of illustration purpose, and it is definitely not the limitation to the disclosure.In addition, in various figures The same reference numerals are used to designate identical components.

Referring to Fig. 4 and Fig. 5, which respectively show the plan views and solid according to the support chip of embodiment of the present disclosure Figure.The support chip can be plate-like and be generally indicated with 1.Support chip 1 can have including the first component 2 and second component The form of 3 two-part construction.The first component 2 is provided with the hole 4 for running through the first component 2 along first direction x, wherein first party To the direction that x is perpendicular to the paper of Fig. 4, hole 4 for example can be the shape of long hole as shown in Figure 4, but it is noted that The shape in the hole 4 in the disclosure is not limited to this and can be other shapes, for example, hole 4 can be in substantially elliptical.First Component 2 includes through hole 4 and the inner peripheral surface 21 of formation.In addition, second component 3 is configured to be fitted in first In the hole 4 of part 2 and including can with the inner peripheral surface 21 of the first component 2 cooperate peripheral surface 31.

Referring to Fig. 6, it illustrates second components 3 to be fitted in the hole 4 of the first component 2, in this case, second The peripheral surface 31 of part 3 can limit two circular holes 41 and 42 with the inner peripheral surface 21 of the first component 2 jointly.As shown in fig. 6, The two circular holes 41 and 42 are spaced apart on second direction y by second component 3, wherein second direction y is perpendicular to first party To x and parallel with the imaginary centres line of two circular holes 41 and 42.

Situation similar with situation shown in fig. 1, in the flowtube that support chip 1 is mounted on coriolis mass flowmeters Under, two flowtubes extending side by side are each passed through two circular holes 41 and 42, and preferably, the inner peripheral surface of the first component 2 21 and the peripheral surface 31 of second component 3 central axial direction of the extending direction on x and flowtube keeps flat in a first direction Row.

Compared with the support chip of the prior art as shown in Figure 1 to Figure 3, it is designed to two according to the support chip 1 of the disclosure Part formula.It can be by making extend side by side two when by the installation of support chip 1 to flowtube by using such configuration Flowtube first passes through the hole 4 in the first component 2 and then second component 3 is fitted in support chip 1 in the first component 2 It is mounted in flowtube.Make to support and single hole 4 of two flowtubes can be accommodated by being formed in the first component 2 as a result, Piece 1 can be more easily nested in flowtube.

Further, it should be noted that second component 3 ensure that the spacing between flowtube that two extend side by side, so that During the installation of support chip 1, flowtube will not because between them the variation of spacing due to deform to influencing the flowmeter Accuracy of measurement.

In some embodiments, according to the cross-sectional shape of flowtube, two circular holes 41 and 42 can have identical Diameter.

According to embodiment of the present disclosure, it could be formed in the inner peripheral surface 21 of the first component 2 and extend along first direction x And run through at least one groove 5 of the first component 2.

Referring to Fig. 7, that schematically shows will be installed in flowtube according to the support chip 1 of embodiment of the present disclosure Process.In this process, the first component 2 is nested in flowtube first.Due to being set in the inner peripheral surface 21 of the first component 2 It is equipped with groove 5, therefore for example the opening size of groove 5 can be made to change by tooling, to correspondingly change first The opening size in the hole 4 of component 2.In this way, it is possible to be adjusted according to the opening size of the cross-sectional shape device to hole 4 of flowtube Section, so that can more easily be nested with support chip 1 in flowtube.

According to embodiment of the present disclosure, as shown in figure 4, the inner peripheral surface 21 of the first component 2 may include semicircular First inner surface 211 and the second inner surface 212 and straight third inner surface 213 and the 4th inner surface 214, and Each of third inner surface 213 and the 4th inner surface 214 all extend to the second inside table from the first inner surface 211 Face 212 is to collectively form inner peripheral surface 21.In other words, straight third inner surface 213 and the 4th inner surface 214 be respectively and half Circular first inner surface 211 and the connection of the second inner surface 212 are to be collectively formed the inner peripheral surface 21 of the first component 2.

Accordingly, the peripheral surface 31 of second component 3 may include semicircular first outer surface 311 and the second outside Surface 312 and straight third outer surface 313 and the 4th outer surface 314, and third outer surface 313 and the 4th outside Each of surface 314 all extends to the second outer surface 312 from the first outer surface 311.In other words, on the outside of straight third Surface 313 and the 4th outer surface 314 connect respectively with semicircular first outer surface 311 and the second outer surface 312 from And the peripheral surface 31 of second component 3 is collectively formed.

As shown in fig. 6, when second component 3 is fitted in the hole 4 of the first component 2, the inner peripheral surface 21 of the first component 2 It cooperates to limit two circular holes 41 and 41 with the peripheral surface 31 of second component 3.Specifically, match by second component 3 When being filled in the hole 4 of the first component 2, third inner surface 213 be can connect to third outer surface 313, the 4th inner surface 214 can connect to the 4th outer surface 314, and the first inner surface 211 and the first outer surface 311 can limit circular hole 41, and the second inner surface 212 and the second outer surface 312 can limit circular hole 42.

In some embodiments, the inner peripheral surface of the first component and the peripheral surface of second component can also use other Shape, as long as the cooperation of inner peripheral surface and peripheral surface can limit two circular holes passed through suitable for flowtube.For example, the The inner peripheral surface of one component can have part circular the first inner surface and the second inner surface and convex arc Three inner surfaces and the 4th inner surface, and the peripheral surface of second component can correspondingly have the first outside of part circular The third outer surface and the 4th outer surface on surface and the second outer surface and concavity arc.

In some embodiments, groove 5 can be arranged in the first inner surface 211 and/or the second inner surface 212 On.

It is set respectively on the first inner surface 211 and the second inner surface 212 in the illustrated embodiment referring to Fig. 4 Groove 5 there are three setting.In this case, can be made by the increase of the opening size of groove 5 hole 4 with first direction x and Opening size on two direction y vertical third direction z increases, alternatively, can make hole by the increase of the opening size of groove 5 4 opening size on second direction y increases.

It is understood that groove 5 can also be arranged on third inner surface 213 and/or the 4th inner surface 214. In such a case, it is possible to increase opening size of the hole 4 on second direction y by the increase of the opening size of groove 5.

It is optionally possible in third inner surface 213 and/or the 4th inner surface 214 and the first inner surface 211 And/or second arrange fluted 5 on inner surface 212.

Thus, it is possible to as needed, change the opening size in hole 4 by the variation of the opening size of groove 5 with by the One component 2 is more easily nested in flowtube.

Further, it is also possible to by between circular hole and flowtube of the variation of the opening size of groove 5 to reduce support chip 1 Gap.

As shown in fig. 7, the first component 2 is nested with onto flowtube in the installation process of support chip 1, and second Part 3 is fitted into 2 inside of the first component and is located between two flowtubes.Then, as depicted by the arrows in figure 7, can pass through Such as pressing clamp applies pressure to support chip 1 from the up and down direction and/or left and right directions of the first component 2, in the press fitting process In, the opening size of the first inner surface 211 and/or the groove 5 on the second inner surface 212 is set since the pressure acts on And correspondingly reduce, thus lead to reducing in third direction z and/or second direction y upper shed size for circular hole 41 and 42, thus The gap between circular hole 41 and 42 and corresponding flowtube is set to be decreased to meet brazing quality requirement.

Therefore, by the above-mentioned configuration according to the support chip 1 of the disclosure, the deformation of worry about flowtube can not had to Bring technological problems.That is, even if flowtube has non-circular cross-sectional shape at bending region, according to this public affairs The support chip 1 opened still is able to be easily fitted into flowtube, while can also reduce the entire gap between circular hole and flowtube To meeting brazing quality requirement.

In some embodiments, groove 5 can be arranged to about following axis mirror symmetries: the axis is along third direction Z extends and passes through the midpoint of the imaginary centres line of two circular holes 41 and 42.In such a case, it is possible to by changing groove 5 Opening size equably change the opening size in hole 4, it is possible thereby to improve the installation effectiveness of support chip 1.In addition, by this Configuration, two 41 Hes of circular hole for the flowtube with roughly the same cross-sectional shape and with roughly the same diameter For 42, it can substantially uniformly reduce and from 1 up and down direction of support chip and/or left and right directions uniformly applied pressing force Gap between circular hole 41 and 42 and corresponding flowtube, it is possible thereby to reduce work hours, and the set-up mode of mirror symmetry can To guarantee the consistency of production, on this point, it helps improve the efficiency of manufacture.

It in some embodiments, can be at the part of the first inner surface 211 being connect with third inner surface 213 And first inner surface 211 the part being connect with the 4th inner surface 214 at a groove 5 is respectively set, such as Fig. 5 institute Show.

In addition, in some embodiments can also connecting with third inner surface 213 in the second inner surface 212 A groove 5 is respectively set at part and at the part of the second inner surface 212 connecting with the 4th inner surface 214, such as Shown in Fig. 5.

By using above-mentioned configuration, can compared to be arranged in the first inner surface 211 or the second inner surface 212 its Groove 5 on his position changes opening size of the circular hole on second direction y to a greater degree.

In some embodiments, a groove 5 can be set at the center portion of the first inner surface 211.And It in some embodiments, can be a groove 5 to be arranged at the center portion of the second inner surface of place 212.By using This configuration, can be compared to the groove 5 in the other positions for being arranged in the first inner surface 211 or the second inner surface 212 Change opening size of the circular hole on third direction z to a greater degree.

Referring to Fig. 8, it illustrates the support chips 1 ' according to another embodiment of the disclosure.Support chip 1 ' is in addition to second Except the configuration of part 3 ' is different from the configuration of second component 3 of support chip 1 described in aforementioned embodiments, remaining part and branch Blade 1 is identical.

In the embodiment depicted in fig. 8, the first outer surface 311 of the second component 3 ' of support chip 1 ' and the second outside At least one lateral slot 6 can be set at least one of surface 312.Lateral slot 6 can have the structure similar with groove 5 Type and effect for example, lateral slot 6 can extend along first direction x and run through second component 3 ', and can pass through lateral slot 6 Opening size changes to further change the opening size of circular hole, it is possible thereby to more effectively reduce between circular hole and flowtube Gap.

Due to semicircular first outer surface 311 of second component 3 ' and the second outer surface 312 respectively with first Semicircular first inner surface 211 and the second inner surface 212 of part 2 are corresponding, therefore lateral slot 6 is in second component 3 ' On semicircular first outer surface 311 and the second outer surface 312 setting can with groove 5 the first component 2 semicircle Setting on the first inner surface 211 and the second inner surface 212 of shape is similar or corresponding.Therefore, details are not described herein.

In present specification, the use of term " on ", "lower", "left", "right", " first ", " second " and " third " etc. Only merely for the purpose convenient for description, should not be taken as restrictive.

Although the utility model is described referring to illustrative embodiments, but it is to be understood that this is practical The novel specific embodiment for being not limited to be described in detail and show in text.In claims without departing from the utility model In the case where limited range, those skilled in the art can make various changes to illustrative embodiments.

Mentioned in the description above to the illustrative embodiments of the disclosure and/or the feature that shows can be with identical Or similar mode is integrated in one or more other embodiments, is combined or is replaced with the feature in other embodiments For the individual features in other embodiments.These combined or substitution technical solutions obtained should also be as being deemed to be included in In the protection scope of the disclosure.

Claims (10)

1. a kind of effective support chip of flow (1) of double-tube type coriolis mass flowmeters,

It is characterized in that, the support chip (1) includes the first component (2) and second component (3), wherein the first component (2) Inner peripheral surface (21) including formation and hole (4) for running through the first component (2) along first direction (x), described second Component (3) can be fitted in the hole (4) of the first component (2) and including can be with the first component (2) The peripheral surface (31) of inner peripheral surface (21) cooperation, wherein the inner peripheral surface (21) of the first component (2) and institute State second component (3) the peripheral surface (31) cooperate to define in second direction (y) be spaced apart two circular holes (41, 42), wherein the second direction (y) perpendicular to the first direction (x) and in the imagination of described two circular holes (41,42) Heart line is parallel,

Also, it is formed in the inner peripheral surface (21) of the first component (2) and extends and run through along the first direction (x) At least one groove (5) of the first component (2), to allow to make by the variation of the opening size of the groove described The opening size in the hole (4) of one component (2) correspondingly changes.

2. support chip (1) according to claim 1, which is characterized in that described two circular holes (41,42) are having the same straight Diameter.

3. support chip (1) according to claim 2, which is characterized in that in the inner peripheral surface of the first component (2) (21) multiple grooves about following axis mirror symmetries are formed on: the axis along with the first direction (x) and The vertical third direction (z) of the second direction (y) extends and by the imaginary centres line of described two circular holes (41,42) Midpoint.

4. support chip (1) according to claim 1, which is characterized in that the inner peripheral surface of the first component (2) It (21) include semicircular first inner surface (211) and the second inner surface (212) and straight third inner surface (213) With the 4th inner surface (214), wherein each in the third inner surface (213) and the 4th inner surface (214) Person extends to second inner surface (212) from first inner surface (211), and

The peripheral surface (31) of the second component (3) includes semicircular first outer surface (311) and the second outside Surface (312) and straight third outer surface (313) and the 4th outer surface (314), wherein the third outer surface (313) and each of the 4th outer surface (314) all extends to described second from first outer surface (311) Outer surface (312),

When the second component (3) is fitted in the hole (4) of the first component (2), the third inner surface (213) it is connected to the third outer surface (313), the 4th inner surface (214) is connected to the 4th outer surface (314), also, first inner surface (211) and first outer surface (311) limit in described two circular holes one A circular hole, and second inner surface (212) and second outer surface (312) limit it is another in described two circular holes Circular hole.

5. support chip (1) according to claim 4, which is characterized in that the groove is arranged in first inner surface (211) and on one of second inner surface (212).

6. support chip (1) according to claim 4, which is characterized in that in first inner surface (211) and described At least one described groove is respectively arranged on two inner surfaces (212), to allow: every in described two circular holes (41,42) Opening size of a circular hole on third direction (z) can be reduced by the reduction of the opening size of the groove, and/or Person, opening size of each circular hole in second direction (y) in described two circular holes (41,42) can pass through the groove The reduction of opening size and reduce, wherein the third direction (z) is perpendicular to the first direction (x) and the second direction (y)。

7. support chip (1) according to claim 4, which is characterized in that first inner surface (211) with it is described At the part of third inner surface (213) connection and in first inner surface (211) and the 4th inner surface (214) be respectively arranged with the groove at the part connected, also, second inner surface (212) with it is described At the part of third inner surface (213) connection and in second inner surface (212) and the 4th inner surface (214) groove is respectively arranged at the part connected.

8. support chip (1) according to claim 7, which is characterized in that in the central portion of first inner surface (211) The groove is respectively arranged at the center portion with second inner surface (212) respectively.

9. support chip (1) according to claim 4, which is characterized in that be provided on first inner surface (211) Multiple grooves of equidistant apart, and equidistant apart is provided on second inner surface (212) Multiple grooves.

10. the support chip according to any one of claim 4 to 9 (1), which is characterized in that the second component (3) It is lateral that at least one is provided at least one of first outer surface (311) and second outer surface (312) Slot (6).