CN207472357U - For the opposite support device and Annular Round Model PFB of Annubar flow sensor - Google Patents

Abstract

The utility model is related to Annular Round Model PFBs.A kind of opposite support device for Annubar flow sensor is provided according to the utility model, which includes：It is configured to the pedestal of the distal portions of the Annubar primary element of accommodating Annubar flow sensor；And it is arranged in base interior and is interposed in the elastic retention means between pedestal and Annubar primary element.A kind of Annular Round Model PFB is additionally provided according to the utility model, including above-mentioned opposite support device.Opposite support device according to the present utility model can effectively avoid Annubar primary element and the opposite support device vibration abrasion of itself.

Description

For the opposite support device and Annular Round Model PFB of Annubar flow sensor

Technical field

The utility model is related to Annular Round Model PFBs, and in particular to for the opposite branch of Annubar flow sensor therein Support arrangement.

Background technology

The content of this part provide only with the relevant background information of the disclosure, the prior art may not formed.

Annubar flow sensor is widely used in various industrial circles, is mainly used for various energy in industrial process The source such as batch processing of liquid, fuel gas, steam and gas and continuous measurement.Annubar flow sensor can be in this way side Formula is installed：Annubar measuring cell is inserted into along the radial direction of fluid line along pipeline and by the end of Annubar measuring cell Abut the inner wall of fluid line.Alternatively, Annubar flow sensor can also be installed in the following way：It is flowed through measuring fluid Process piping selected location drill (along two opposite positions of the radial direction of pipeline), Annular Round Model PFB will be used for Opposite support device be welded at one of hole, then by Annubar flow sensor from opposite hole be inserted into pipeline and then Opposite support device is inserted into across opposite hole, that is, completes the installation of Annubar flow sensor.Compared to Annular Round Model PFB End be resisted against the mode of inner wall of the pipe, this mounting means can more stably support Annular Round Model PFB.

It for second of mounting means, finds in actual use, when Annubar fluid sensor uses one section Between after (for example, 1 month or 3-6 month), house the end of Annubar primary element in support device over there or opposite branch Support arrangement can occur serious abrasion and even be broken in itself.This damage can reduce the workability of Annubar fluid sensor Can, it reduce its service life.Also, Annubar primary element is replaced as frequently as due to damage can extraly increase Annubar flow The use cost of meter.

It is, therefore, desirable to provide a kind of scheme that can be solved the above problems.

Utility model content

One purpose of the utility model is to provide a kind of opposite support device for Annubar flow sensor, tool There is extended service life.

Another purpose of the utility model is to provide a kind of opposite support device for Annubar flow sensor, The cost of installation and use of Annubar flow sensor can be reduced.

Another purpose of the utility model is to provide a kind of Annular Round Model PFB for being provided with this opposite support device.

For one or more of above-mentioned purpose, one side according to the present utility model provides a kind of for Ah ox The opposite support device of bar flow sensor, the opposite support device include：Pedestal is configured to accommodating Annubar flow and passes The distal portions of the Annubar primary element of sensor；Elastic retention means are arranged in base interior and are interposed in pedestal and Annubar Between primary element.

The elastic retention means of Annubar primary element, one side can be clamped by being employed in above-mentioned opposite support device Annubar primary element can be held fixedly, on the other hand can effectively absorb the vibratory impulse from fluid impact, from And avoid Annubar primary element and opposite support device that vibration abrasion occurs in itself.

Preferably, opposite support device further includes interfacing part, and interfacing part is configured to be bonded on Annubar primary element End using the part as distal portions and can be maintained on the inside of elastic retention means.

Preferably, interfacing part is circular piece.

Preferably, interfacing part is tube-like piece or stick-like.

Preferably, the top of interfacing part is formed with the notch to match with the shape of the end of Annubar primary element.

Preferably, pedestal includes hollow sleeve and the attachment seat with through hole.

Preferably, sleeve with attachment seat be integrally formed or to weld, it is be bonded, be threadedly coupled or interference fit type each other Connection.

Preferably, the flange that circumferentially extends internally is formed at the top of the sleeve of pedestal so that elastic retention means are limited In sleeve inner.

Preferably, elastic retention means are configured to intermediate narrowed cylindrical metallic shrapnel, and cylindrical metallic shrapnel is in place in installation Afterwards both ends compress the inner wall of pedestal and intermediate narrowed portion compress inside Annubar primary element distal portions.

Preferably, the thickness of cylindrical metallic shrapnel is 0.8mm~1.5mm.

Preferably, elastic retention means are hat spring.

Preferably, elastic retention means are configured to cone-shaped metal shrapnel tapered from one end to the other side, cone-shaped metal shrapnel Large-diameter end compresses the inner wall of pedestal and close to the front end of pedestal after installation is in place, and small-diameter end portions clamp Annubar The distal portions of primary element.

Preferably, elastic retention means (204) are pawl spring.

Preferably, elastic retention means are tower spring, and the tower spring is installed in a manner that large-diameter end is close to the front end of pedestal In pedestal, and distal portions that are axially compressed after installation is in place and radially clamping Annubar primary element.

Another aspect according to the present utility model provides a kind of Annular Round Model PFB, which includes Ah ox Bar flow sensor and the opposite support device for Annubar flow sensor according to above-mentioned aspect.

Preferably, the Annubar primary element of Annubar flow sensor is configured to pass through along the radial direction of fluid line Pipeline, opposite support device are relatively fixed to pipeline to house the distal portion of Annubar primary element with Annubar primary element Point.

Preferably, Annubar primary element has the cross section of round, rectangle or T shapes.

Description of the drawings

By description referring to the drawings, the feature and advantage of one or several embodiments of the utility model will become Must be easier to understand, wherein：

Fig. 1 shows the opposite support installation of the Annubar flow sensor in prior art；

Fig. 2 shows the view similar with Fig. 1, wherein showing the opposite support device of Fig. 1 in an exploded manner；

Fig. 3 shows the decomposition diagram of the opposite support device in Fig. 2；

Fig. 4 shows the sectional view of opposite support device in the mounted state in Fig. 3；

Fig. 5 shows the opposite support installation of the Annubar flow sensor of embodiment according to the present utility model, In, opposite support device is shown with decomposing state；

Fig. 6 shows the decomposition diagram of the opposite support device in Fig. 5；

Fig. 7 shows the sectional view of opposite support device in the mounted state in Fig. 6；

Fig. 8 shows that the solid of the elastic retention means in the opposite support device of embodiment according to the present utility model is shown It is intended to；

Fig. 9 shows the vertical view of the elastic retention means in Fig. 8；

Figure 10 shows the stereoscopic schematic diagram of the interfacing part of the opposite support device of embodiment according to the present utility model；

Figure 11 shows the stereoscopic schematic diagram of the interfacing part of opposite support device first having；

Figure 12 shows the three-dimensional signal of the base socket sleeve of the opposite support device of embodiment according to the present utility model Figure；

Figure 13 shows the stereoscopic schematic diagram of the base socket sleeve of opposite support device first having；

Figure 14 shows the opposite support device of the Annubar flow sensor according to another embodiment of the utility model, Wherein, opposite support device is shown with decomposing state；

Figure 15 shows the schematic diagram of the elastic retention means of the opposite support device in Figure 14；

Figure 16 shows the opposite support device of the Annubar flow sensor according to the another embodiment of the utility model, Wherein, opposite support device is shown with decomposing state；

Figure 17 shows the schematic diagrames of the elastic retention means of the opposite support device in Figure 16；

Figure 18 shows the schematic diagram of the Annular Round Model PFB according to the utility model embodiment；And

Figure 19 shows the schematic diagram of the part including the industrial control system according to the utility model embodiment.

Specific embodiment

It is proposed with reference to the accompanying drawings to describe the relevant technologies of the utility model and principle according to the present utility model Embodiment.Description related to the preferred embodiment is only exemplary below, and is definitely not to the utility model and its application Or the limitation of usage.In various figures the same reference numerals are used to designate identical component, therefore the structure of same parts It makes and will not be repeated again.View in attached drawing not shows at the same scale, for the sake of clarity, may regarding with amplification Illustrate the part of device or device.

Fig. 1 to Fig. 4 shows the opposite support mounting means and used of the Annubar flow sensor of prior art Opposite support device；Fig. 5 is to Figure 17 shows pairs for Annubar flow sensor according to the utility model embodiment Face support device；Figure 18 and Figure 19 is shown according to the Annular Round Model PFB of the utility model embodiment and including this Ah ox The industrial control system of bar flowmeter.It should be noted that the opposite erecting device shown in Fig. 1 to Fig. 4 is only used as according to this practicality The reference of novel embodiment may not form the prior art.

Fig. 1 shows Annubar flow sensor 100 ' by opposite support device 200 ' on fluid line 300 ' State.The Annubar primary element 101 ' of Annubar flow sensor 100 ' is inserted through pipeline 300 ', opposite from side Support device 200 ' is soldered to fluid line 300 ', the end of Annubar primary element 101 ' in the opposite side of fluid line 300 ' Extend into opposite support device 200 '.Visible in decomposition view as shown in Fig. 2 and Fig. 3, opposite support device 200 ' includes： The interfacing part 201 ' that is engaged with the end of original paper 101 ' of Annubar, for opposite support device 200 ' to be fixed to pipeline 300 ' welding base 202 ' and the sleeve 203 ' for being connected to (for example, bonding) welding base 202 '.The section of Fig. 4 is shown After installation is in place, the interfacing part 201 ' for being bonded to the end of Annubar primary element 101 ' is accommodated in sleeve 203 ', and Welding base 202 ' is soldered to pipeline 300 ' by weld seam 301 '.

As referred to above, it is even disconnected that abrasion can occur in use for some time for Annubar primary element 101 ' It splits.The inventor of the utility model passes through analysis abrasion or the crackle and break surface of fracturing member (for example, interfacing part 201 ') After find, it is this damage essentially due to fatigue failure caused by the periodic vibration of Annubar primary element 101 ' is led It causes.

When Annular Round Model PFB works, fluid flows through pipeline 300 ', Annubar one dimension internal positioned at pipeline 300 ' Part 101 ' measures the flow of fluid, and Annubar primary element 101 ' can washing away with intrinsic with fluid in the process Frequency is vibrated (along fluid flow direction oscillation crosswise).Due to there is gap (for peace between interfacing part 201 ' and sleeve 203 ' Fill convenient purpose), therefore interfacing part 201 ' is understood with Annubar primary element 101 ' in 203 ' internal vibration of sleeve so as to constantly Hit the inner wall of sleeve 203 ' in ground.It is this it is frequent vibration hit cause interfacing part 201 ' and sleeve 203 ' abrasion and It destroys.

For this purpose, the utility model inventors herein proposes a kind of solution for this problem.Next, with reference to Fig. 5 It is illustrated to Figure 15.

Fig. 5 to Fig. 7 shows the opposite for Annubar flow sensor 100 according to one embodiment of the disclosure Support device 200.As shown in FIG., opposite support device 200 includes：Interfacing part 201 is configured to be bonded on Annubar The end of the Annubar primary element 101 of flow sensor 100 is so as to form the one of the distal end of Annubar primary element 101 Point；Attachment seat 202 with through hole, (ratio is as follows for opposite support device 200 to be attached to external equipment for attachment seat 202 Text is by the fluid line 300 of description), the through hole of attachment seat 202 allows Annubar primary element 101 to pass through；Hollow sleeve 203, it is configured to connect to house interfacing part 201 with attachment seat 202；And elastic retention means 204, sleeve can be arranged in Inside 203 and it is interposed between sleeve 203 and interfacing part 201.

The section of Fig. 7 shows Annubar flow sensor 100 and opposite support device 200 install it is in place after shape State, it is similar with the installation condition for first having opposite support device 200 ' shown in Fig. 4.Attachment seat 202 is welded by weld seam 301 To fluid line 300.Sleeve 203 is connected to attachment seat 202, for example, can be by welding, being bonded, being threadedly coupled or interference is matched The mode of conjunction connects, and attachment seat 202 is formed with the recess portion for branch sleeve 203 positioned at downside thus.Interfacing part 201 connects The end of Annubar primary element 101 is bonded to, as shown in Figure 7, the end of Annubar primary element 101 is contained in attachment seat In 202, interfacing part 201 is accommodated in sleeve 203.With being in place of the main difference for first having opposite support device 200 ' of Fig. 4, According in the opposite support device 200 of the disclosure, sandwiched flexible retention means between the inner wall of interfacing part 201 and sleeve 203 204.By this elastic retention means 204, interfacing part 201 can be clamped steadily, and elastic retention means 204 itself can Morphotropism can absorb the vibration from fluid scouring, so as to avoid the brinelling of interfacing part 201.Cause to grind due to eliminating The vibratory impulse destroyed is damaged, therefore the service life of opposite support device 200 can be extended and reduce use cost.

Particularly, in addition to that can absorb caused by fluid scouring other than vibratory impulse, according to the elastic maintenance of the disclosure Part 204 also allows to reduce the requirement of the manufacturing tolerance to interfacing part 201 and sleeve 203 because elastic retention means 204 itself can Morphotropism can make up the manufacturing tolerance of interfacing part 201 and sleeve 203.

Although show that attachment seat 202 and sleeve 203 are formed as the example of independent component in figure, in unshowned implementation In mode, seat 202 and sleeve 203 are attached it is so structured that integrally formed base component, the base component that this is integrated is on the one hand Annubar primary element 101 and interfacing part 201 can be housed, on the other hand can also be attached to fluid line 300 with by opposite Support device 200 is fixed to pipeline 300.In this case, the structure of sleeve 203 can be with aforementioned split configuration middle sleeve 203 structure is slightly different, this will be described hereinafter.

It is directly mounted in sleeve 203 (or integrated footings) in addition, the disclosure also contemplates Annubar primary element 101 Situation, that is, not by interfacing part 201 directly by the end of Annubar primary element 101 be mounted on sleeve 203 in.It is this Example, which is suitable for Annubar primary element 101, has a case that regular sections (such as circular cross-section), so as to elastic retention means 204 The end for clamping Annubar primary element 101 can be stablized.In this embodiment, interfacing part 201 can be omitted.

Continue with the realization method for illustrating the elastic retention means 204 according to the disclosure with reference to Fig. 8 and Fig. 9.Such as institute in figure Show, elastic retention means 204 are it is so structured that the form of intermediate narrowed cylindrical metallic shrapnel.For the ease of installation, cylindrical metallic Shrapnel is preferably formed to the structure of open type, can have pass through openings 204a along the longitudinal direction.When mounted, to center Metal clips is clutched so that it is smoothly fitted into sleeve 203.After installation is in place, two end 204c of cylindrical metallic shrapnel, 204d compresses the inner wall of sleeve 203 and centre narrowed portion 204e compresses the interfacing part 201 of inside, such as institute in Fig. 7 and Fig. 8 Show.

In order to provide more preferably elastic property, cylindrical metallic shrapnel is preferably formed with multiple be longitudinally extended on peripheral wall Notch 204b can obtain desired equivalent elastic coefficient by adjusting the width of notch 204b, length and quantity.In Fig. 8 The intermediate narrowed portion 204e of the cylindrical metallic shrapnel shown can be structured as arc, by adjusting the size of radian, can also change Become the equivalent elastic coefficient of cylindrical metallic shrapnel.

Present disclose provides two specific examples of cylindrical metallic shrapnel.

In a large-sized example, the outer diameter of end 204c, 204d of cylindrical metallic shrapnel are 1.26 " (32mm +/- 1mm), a diameter of 0.9 " (23mm+/- 1mm) of intermediate narrowed portion 204e, length is 60mm+/- 5mm.In a small size Example in, the outer diameter of end 204c, 204d of cylindrical metallic shrapnel is 0.64 " (16mmm+/- 1mm), intermediate narrowed portion A diameter of 0.45 " (11.5mm+/- 1mm) of 204e, length are 30mm+/- 2mm.The two examples are respectively suitable for different rulers Very little Annubar primary element 101, and different clamping forces can be provided.It should be noted that the two examples are only Illustratively, it is not intended to limit the present invention.Can the tubular of suitable dimension be selected according to the model and size of actual product Metal clips.

According to the specific example of the disclosure, the usable thickness range of cylindrical metallic shrapnel can be 0.8mm-1.5mm.With Above mentioned other factors are the same, can also change equivalent elastic coefficient by the thickness for adjusting tubular metal clips.

In view of the configuration of the elastic retention means 204 of use, as a kind of convenient realization method, elastic retention means 204 Commercially available hat spring can be directly used, this contributes to the manufacture cost for reducing opposite support device 200.

Continue with the structure for illustrating the interfacing part 201 of the opposite support device 200 according to the disclosure with reference to Figure 10. As shown in Figure 10, according to the interfacing part 201 of the opposite support device 200 of the disclosure it is so structured that tube-like piece.This pipe fitting The interfacing part 201 of form is infeasible for the opposite support device 200 ' first having, because its intensity is not enough to bear The vibratory impulse that fluid scouring is brought.The rodlike interfacing part 201 ' for the opposite support device 200 ' first having is shown in Figure 11.Phase Over the ground, the utility model allows as a result of elastic retention means 204 using the tubular form for being easier to process and cost is lower Interfacing part 201.It should be noted that although interfacing part 201 can be structured as the circular tube shaped component shown in Figure 10, It is contemplated that the interfacing part of other suitable shapes, such as elliptical shape, rectangular shape etc..And, if it is desired to it is Annubar Sensor 100 provides safety or the engine sta bility margin of bigger, and the opposite support device 200 of the utility model embodiment is also same Rodlike interfacing part may be used in sample.

Since using the interfacing part 201 of tubulose significant cost reduction can be brought, and according to the opposite branch of the disclosure Increased cylindrical metallic shrapnel cost is also very cheap in support arrangement 200, therefore the totality of the opposite support device 200 of the disclosure Cost can still reduce.As a result, by above-mentioned improved design, can not only be reduced according to the opposite support device 200 of the disclosure The vibration that interfacing part 201 and Annubar primary element 101 occur due to fluid scouring, and relative to pair for first having design Face support device 200 ' has apparent reduction in terms of cost.

Particularly, in order to coordinate the cross sectional shape of Annubar primary element 101 --- it is that T shapes are cut in the shown example Face, according to the top of the interfacing part 201 of the opposite support device 200 of the disclosure be formed with for Annubar primary element 101 End cooperation notch 201a, 201b, as shown in Figure 10.Certainly, the top of interfacing part 201 is not limited to this configuration, Different with the cross sectional shape of Annubar primary element 101, the engagement slot on the top of interfacing part 201 may also change accordingly.It is special Not, if Annubar primary element 101 has circular cross-section, pair of tubular can be directly bonded in a manner of grafting In fitting 201.For the rodlike interfacing part 201 ' shown in Figure 11, top be similarly also formed with for Annubar one Notch 201a ', the 201b ' that item 201 coordinates, as shown in Figure 11.

The structure of the sleeve 203 of the opposite support device 200 according to the disclosure is illustrated referring next to Figure 12.Such as figure Shown in, the top of sleeve 203 is formed with the flange 203a circumferentially to extend internally, this peripheral flange 203a is to solid by elasticity Position part 204 is limited to inside sleeve 203, is prevented its vibration due to interfacing part 201 and is slipped from sleeve 203.Particularly, exist In the case that sleeve 203 and attachment seat 202 are formed as the pedestal of overall configuration, sleeve 203 can be not provided with above-mentioned peripheral flange 203a, elastic retention means 204 can be positioned by the shoulders (for example, the shoulders 202a shown in Fig. 7) of base interior.

With the sleeve 203 according to the disclosure shown in Figure 12 relatively, Figure 13 shows the opposite support device first having The schematic diagram of sleeve 203 ' in 200 '.It can be seen that the basic phase of structure of the sleeve 203 of sleeve 203 ' and Figure 12 of Figure 13 Together, main difference is that, sleeve 203 ' is not provided with for the flanged structure of backstop elasticity retention means, but in sleeve 203 ' inside is formed with inclined stage portion 203a '.It is filled by the end of interfacing part 201 ' or Annubar primary element 101 ' When entering sleeve 203 ', this inclined stage portion 203a ' is for providing guiding role to contribute to interfacing part 201 ' or Annubar one Item 101 ' is smoothly packed into.

Figure 14 and Figure 15 shows another embodiment of the opposite support device 200 according to the disclosure.This embodiment It is to employ with the main distinction of above-mentioned first embodiment and can be used as elasticity from the tower spring directly bought on the market Retention means 204.In this second embodiment, for the sake of clarity, all parts corresponding with first embodiment still use Reference label identical with first embodiment.

As shown in Figure 14, the tower spring as elastic retention means 204 is configured to large-diameter end before sleeve 203 The mode of end and small-diameter end portions close to the rear end of sleeve 203 is mounted in sleeve 203.Herein, " front end " of sleeve 203 Sleeve 203 is referred to adjacent to one end of fluid line 300 extremely to be attached, " rear end " refers to sleeve 203 far from fluid line 300 one end.Also, principle according to the present utility model forms integrated base component in sleeve 203 and attachment seat 202 In the case of, above-mentioned " front end " and " rear end " is then defined relative to pedestal.

After installation is in place, tower spring is located in a manner of axially compressed in sleeve 203, with aforementioned embodiments class Seemingly, the inside of sleeve 203 is also equipped with the flange for preventing tower spring from deviating from.Also, it is bonded to Annubar primary element 101 The interfacing part 201 of end is accommodated in a manner of being axially and laterally pressurized in the mounted state in tower spring, and tower spring is along diameter as a result, To and axial grip interfacing part 201, so as to absorb the vibratory impulse from fluid scouring, prevent interfacing part 201 hit sleeve 203 inner wall.Therefore, the tower spring of this embodiment and the absorption of vibrations mode of aforementioned cylindrical metallic shrapnel are slightly different, cylinder Shape metal clips only absorbs the vibratory impulse of Annubar primary element 101 in radial directions.In addition, with cylindrical metallic shrapnel Embodiment is similar, the tower spring used in this embodiment equally have the advantages that it is of low cost, and can be straight from the market It connects and buys.

Particularly, in this embodiment, it may be considered that in the lower end of the interfacing part 201 (side shown in relative to Figure 14 Position) tapered portion (not shown) is formed, to be more convenient and more stably interfacing part 201 to be mounted in tower spring.

Figure 16 and the another embodiment Figure 17 shows the opposite support device 200 according to the disclosure.This embodiment Employ the elastic retention means 204 of different configuration mode, the construction and arrangement of other parts and aforementioned first embodiment class Seemingly.In this third embodiment, all parts corresponding with first embodiment are still using identical with first embodiment Reference label.

As shown in FIG., the elastic retention means 204 in this third embodiment are configured to cone-shaped metal shrapnel, have from One end is to the tapered configuration of the other end.When mounted, cone-shaped metal shrapnel with large-diameter end close to the front end of sleeve 203 and small Mode of the diameter end close to the rear end of sleeve 203 is mounted in sleeve 203.The definition of " front end " and " rear end " herein is with before Face is identical for the definition of second embodiment.After installation is in place, the large-diameter end of cone-shaped metal shrapnel compresses sleeve 203 Inner wall and small-diameter end portions clamp interfacing part 201 (or end of Annubar primary element).It is configured to cone-shaped metal shrapnel Elastic retention means 204 and the absorption of vibrations mode for the cylindrical metallic shrapnel that the centre in first embodiment is narrowed are essentially identical, Vibration is mainly absorbed by the circumferential clamping force of shrapnel and the deformability of itself.

Preferably, it is formed with and extendable in the longitudinal direction cuts to the multiple of its small-diameter end portions on the side wall of cone-shaped metal shrapnel Mouth 204a.The diameter of the small-diameter end portions of cone-shaped metal shrapnel can be less than (or the Ah ox of interfacing part 201 that will be clamped as a result, The end of bar primary element 101) diameter because the notch when interfacing part 201 is inserted on side wall allows cone-shaped metal shrapnel Small-diameter end portions expansion.

It is similar with the example of cylindrical metallic shrapnel that above-mentioned centre is narrowed, as a kind of convenient realization method, elasticity Retention means 204 can be directly using can be in the pawl spring bought on the market.

It is illustrated above with illustrative embodiment according to the utility model principle for Annubar flow sensor The realization method of 100 opposite support device 200.

In addition, principle according to the present utility model, additionally provides the Annular Round Model PFB for including this opposite support device 200 10.As in Figure 18 institute not, this Annular Round Model PFB 10 can include in such as Fig. 5 the Annubar flow sensor 100 that shows with And aforementioned opposite support device 200.The Annubar primary element of Annubar flow sensor 100 is also illustrated in Figure 18 101 install across fluid line 300 into opposite support device 200.

Particularly, in addition to previously described T shapes cross section, according to the Annubar one of the Annular Round Model PFB 100 of the disclosure Item 101 can also have the cross section of round, rectangle or any other suitable shape.Accordingly, opposite support device 200 Interfacing part 201 (if employed) corresponding engaging groove can be formed at top or internal forms connecing for correspondingly-shaped Close aperture.Interfacing part 201 and the end of Annubar primary element 101 can be connect in an interference fit under latter situation It closes.

In order to show the occupation mode of the Annular Round Model PFB 10 according to the utility model embodiment, shown in Figure 19 Annular Round Model PFB 10 applies the state in industrial control system 1.It can be seen that Annular Round Model PFB 100 is via conduit 500 It is connected with the transmitter 400 in downstream, and switch valve 600 is provided between Annular Round Model PFB 100 and transmitter 400, with Control the circulation of fluid.

Claims (17)

1. A kind of 1. opposite support device for Annubar flow sensor, which is characterized in that the opposite support device (200) Including：

   Pedestal is configured to house the distal portions of the Annubar primary element (101) of the Annubar flow sensor；With And

   Elastic retention means (204) are arranged in the base interior and are interposed in the pedestal and the Annubar primary element (101) between.
2. 2. opposite support device according to claim 1, which is characterized in that further include interfacing part (201), the interfacing part It is configured to be bonded on the end of the Annubar primary element (101) using the part and energy as the distal portions It is enough maintained on the inside of the elastic retention means (204).
3. 3. opposite support device according to claim 2, which is characterized in that the interfacing part (201) is circular piece.
4. 4. opposite support device according to claim 2, which is characterized in that the interfacing part (201) is tube-like piece or stick Shape part.
5. 5. opposite support device according to claim 2, which is characterized in that the top of the interfacing part (201) is formed with The notch (201a, 201b) to match with the shape of the end of the Annubar primary element (101).
6. 6. opposite support device according to claim 1, which is characterized in that the pedestal includes hollow sleeve (203) With the attachment seat (202) with through hole.
7. 7. opposite support device according to claim 6, which is characterized in that the sleeve (203) and the attachment seat (202) it is integrally formed or welding, being bonded, being threadedly coupled or interference fit type is connected to each other.
8. 8. opposite support device according to claim 6, which is characterized in that the top of the sleeve (203) of the pedestal Portion is formed with the flange (203a) that circumferentially extends internally so that the elastic retention means (204) are limited to the sleeve (203) it is internal.
9. 9. opposite support device according to any one of claim 1 to 8, which is characterized in that the elasticity retention means (204) intermediate narrowed cylindrical metallic shrapnel is configured to, the cylindrical metallic shrapnel compresses the base in both ends after installation is in place The inner wall of seat and intermediate narrowed portion compress the distal portions of the Annubar primary element of inside.
10. 10. opposite support device according to claim 9, which is characterized in that the thickness of the cylindrical metallic shrapnel is 0.8mm~1.5mm.
11. 11. opposite support device according to claim 9, which is characterized in that the elasticity retention means (204) are hat spring.
12. 12. opposite support device according to any one of claim 1 to 8, which is characterized in that the elasticity retention means (204) cone-shaped metal shrapnel tapered from one end to the other side is configured to, the cone-shaped metal shrapnel is big straight after installation is in place Diameter end compresses the inner wall of the pedestal and close to the front end of the pedestal, and the small-diameter end portions clamping Annubar is primary The distal portions of element.
13. 13. opposite support device according to claim 12, which is characterized in that the elasticity retention means (204) are pawl spring.
14. 14. opposite support device according to any one of claim 1 to 8, which is characterized in that the elasticity retention means (204) tower spring is configured to, the tower spring is mounted in a manner that large-diameter end is close to the front end of the pedestal in the pedestal, And the distal portions that are axially compressed and radially clamping the Annubar primary element after installation is in place.
15. 15. a kind of Annular Round Model PFB, which is characterized in that the Annular Round Model PFB includes Annubar flow sensor (100) And the opposite support device for the Annubar flow sensor according to any one of claim 1-14 (200)。
16. 16. Annular Round Model PFB according to claim 15, which is characterized in that

    The Annubar primary element (101) of the Annubar flow sensor (100) is configured to along fluid line (300) Radial direction passes through the fluid line (300), the opposite support device (200) and the Annubar primary element (101) The fluid line (300) is relatively fixed to house the distal portions of the Annubar primary element (101).
17. 17. Annular Round Model PFB according to claim 15 or 16, which is characterized in that the Annubar primary element (101) there is the cross section of round, rectangle or T shapes.