CN217504883U - Coriolis mass flowmeter with non-circular cross section - Google Patents
Coriolis mass flowmeter with non-circular cross section Download PDFInfo
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- CN217504883U CN217504883U CN202220444544.7U CN202220444544U CN217504883U CN 217504883 U CN217504883 U CN 217504883U CN 202220444544 U CN202220444544 U CN 202220444544U CN 217504883 U CN217504883 U CN 217504883U
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Abstract
The Coriolis mass flowmeter with the non-circular cross section comprises a flow inlet device and a flow outlet device, wherein the flow inlet device and the flow outlet device respectively comprise a flange connecting disc, a flange sealing disc, a connecting piece and a flow tube; the flange sealing disc is attached to the outer surface of the flange connecting disc; the connecting piece is connected with the flange connecting disc; the main body of the flow tube is positioned in the connecting piece, and the outlet of the flow tube is connected with the flange sealing disc; the cross-section of the measurement body portion of the flow tube is a circular cross-section and the cross-section of the outlet of the flow tube is a non-circular cross-section. The design and the manufacturing process of the Coriolis mass flowmeter sensor are greatly simplified on the premise that the function and the performance of the Coriolis mass flowmeter are not affected, and the production and manufacturing cost of the sensor is effectively reduced.
Description
Technical Field
The utility model relates to a Coriolis mass flowmeter, concretely relates to Coriolis mass flowmeter of non-circular cross-section.
Background
Conventional coriolis mass flowmeter sensors are primarily comprised of flanges, flow diverters, flow tubes, a housing, and flow tube attachments (e.g., gussets, coil assemblies, etc.). The liquid receiving parts of the sensor are respectively a flange, a flow divider and a measuring pipe. The flange is used for connecting an external pipeline, and the flow divider is used for uniformly distributing a medium to two or more flow pipes. For special media, such as highly corrosive media, the liquid-contacting component needs to be made of a special material, such as Hastelloy (Hastelloy C22). If such special materials are selected to manufacture the flange and the flow divider, the cost is high, and especially for large-caliber flow meters, the weight is larger and the cost is higher.
This is novel in order to solve above-mentioned problem, has given a new design, has abandoned traditional flange and shunt design, has simplified the design form of flange and shunt, makes it no longer appear as connecing the liquid part, but only plays the effect that rigidity supported. For the flow tube, the novel innovation adopts a design scheme that the tube end adopts the flow tube with the non-circular section, and the flow tube is extended to the end face of the flange and connected with the sealing disc of the flange, so that the liquid receiving surface is realized by the flow tube.
SUMMERY OF THE UTILITY MODEL
The utility model provides a Coriolis mass flowmeter with a non-circular cross section, which comprises a flow inlet device and a flow outlet device, wherein the flow inlet device and the flow outlet device respectively comprise a flange connection disc, a flange sealing disc, a connecting piece and a flow tube; the flange sealing disc is attached to the outer surface of the flange connecting disc; the connecting piece is connected with the flange connecting disc; the main body of the flow tube is positioned in the connecting piece, and the outlet of the flow tube is connected with the flange sealing disc; the cross-section of the measurement body portion of the flow tube is a circular cross-section and the cross-section of the outlet of the flow tube is a non-circular cross-section.
Preferably, the coriolis mass flowmeter further comprises a bridge connecting the connection of the flow inlet device and the connection of the flow outlet device.
Preferably, the flow tube comprises a first flow tube and a second flow tube, and the rigidity of the cross section of the first flow tube and the rigidity of the cross section of the second flow tube are asymmetric in two orthogonal directions.
Preferably, the outer surface of the flange sealing disk includes a sealing waterline.
Preferably, the flange sealing disk and the flow tube are made of corrosion-resistant materials.
This novel effect of bringing as follows: on the premise of ensuring that the function and the performance of the Coriolis mass flowmeter are not influenced, the design and the manufacturing process of the Coriolis mass flowmeter sensor are greatly simplified, and the production and manufacturing cost of the sensor is effectively reduced. Particularly, the novel sensor has very obvious cost advantage for sensors (such as hastelloy, dual-phase steel and the like) made of special materials with higher value. In addition, for a sensor with a larger caliber (especially the caliber above DN 100), the cost advantage of the novel sensor is also obvious.
Drawings
Fig. 1 is a cross-sectional view of a coriolis mass flowmeter.
Fig. 2 is a cross-sectional view of the coriolis mass flowmeter.
FIG. 3 is a flow tube diagram.
Detailed Description
To make the objects, technical solutions and advantages of the present novel embodiments clearer, the technical solutions in the present novel embodiments will be clearly and completely described below with reference to the accompanying drawings in the present novel embodiments.
The coriolis mass flowmeter with a non-circular cross section provided in the present embodiment, as shown in fig. 1, 2, and 3, includes a flow inlet device and a flow outlet device (only the flow inlet device or the flow outlet device is shown in the figure because the flow inlet device and the flow outlet device have the same structure), both the flow inlet device and the flow outlet device include a flange connection disk (1), a flange sealing disk (2), a connection piece (3), a flow tube (5a, 5b), and a case, a coil assembly, a node plate, and other parts not shown in the figure. It should be understood that although the number of flow tubes is illustrated as two, the present invention is not limited to dual tube mass flowmeters, and single tube or multi-tube mass flowmeters are equally applicable to the present invention. The above parts are generally joined together by means of argon arc welding or brazing, although other joining methods are possible depending on the characteristics of the parts themselves, such as: the flange connection disc (1) and the connecting piece (3) are connected by threads. This is novel has abandoned traditional flange and shunt design, has simplified the design form of flange and shunt, makes it no longer appear as connecing the liquid part, but only plays the effect that rigidity supported. For the flow tube, the novel design scheme of the flow tube with the non-circular section at the tube end is adopted, the flow tube extends to the end face of the flange and is connected with the sealing disc of the flange, and therefore liquid receiving surface is realized by the flow tube.
The flange connecting disc (1) is used for connecting a flange of an external pipeline, the flange sealing disc (2) is attached to the outer surface of the flange connecting disc (1), the flange sealing disc (2) plays a role in sealing, and the outer surface comprises a sealing waterline; the connecting piece (3) is connected with the flange connecting disc (1), so that the original design of the flow divider is replaced, and the flow tube (5 a/5 b) is supported; the main body of the flow tube is positioned in the connecting piece, and the outlet of the flow tube is connected with the flange sealing disc.
Although the traditional flow tube has various bent tube shapes, the design scheme that the cross section is circular is adopted. In addition, conventional sensors have a sudden change in the total cross-sectional area of the two or more flow tubes and the cross-sectional area of the outer conduit, which can result in unsmooth flow lines and pressure losses. The design method of the special-shaped cross section is adopted at the inlet and the outlet of the flow pipe.
As shown in fig. 3, the middle part of the measuring tube is the main measuring part, the circular cross section is maintained in the measuring region, and the non-circular cross section is adopted in the regions for shunting and connecting the external pipeline at the inlet/outlet of the two ends of the measuring tube, so that the design can ensure that the flow tube is used as a liquid receiving part with the maximum efficiency, for example, the function of resisting corrosion of a special pipe material is achieved, the flow tube is more effectively fused into the inner hole of the external pipeline, the shunting function is effectively achieved, the flow line can be smoother, the pressure loss is reduced, and the measuring condition can be improved.
The fabrication of the measurement tube shown in fig. 3 can be accomplished by a variety of processes. Such as processes including, but not limited to, 3D printing, reaming, internal high pressure molding, and the like.
The shaped cross-sections of the inlet and outlet of the novel flow tube are not limited to the shapes and dimensions shown, and other non-circular cross-sections, such as elliptical, polygonal, etc., are equally suitable for use in the present invention.
In one example, the coriolis mass flowmeter further comprises a bridge (4) connecting the connection of the flow inlet device and the connection of the flow outlet device.
In one example, the flow tube comprises a first flow tube and a second flow tube, and the rigidity of the cross section of the first flow tube and the rigidity of the cross section of the second flow tube are asymmetric in two orthogonal directions through the change adjustment of the size of the special-shaped cross section, so that the mode separation in the two orthogonal directions can be flexibly realized, and the adverse effects of external condition interference and the like in the working process of the flowmeter can be avoided.
In one example, the same material, such as stainless steel 316L or other alternative materials, may be used for the various components of the present invention. But different materials can be adopted according to the actual demand of the product, the liquid receiving parts such as the flange sealing disc (2), the measuring pipe (5a \5b) and the like adopt expensive materials so as to improve the corrosion resistance of the product, such as hastelloy, super duplex steel and the like, and the other non-liquid receiving parts can adopt stainless steel 304 materials with common price or other alternative materials.
The present invention is not limited to the "V" type tube shown in the drawings, and any commonly known "U", "T", "Ω" or straight tube is suitable for the present invention.
It is obvious to a person skilled in the art that the present invention is not restricted to details of the above-described exemplary embodiments, but that it can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. A coriolis mass flowmeter of non-circular cross-section, said flowmeter comprising a flow inlet means and a flow outlet means, said flow inlet means and said flow outlet means each comprising a flange plate, a flange seal disk, a connector, a flow tube;
the flange sealing disc is attached to the outer surface of the flange connecting disc;
the connecting piece is connected with the flange connecting disc;
the main body of the flow tube is positioned in the connecting piece, and the outlet of the flow tube is connected with the flange sealing disc;
the cross-section of the measurement body portion of the flow tube is a circular cross-section and the cross-section of the outlet portion of the flow tube is a non-circular cross-section.
2. The coriolis mass flowmeter of claim 1 further comprising a bridge connecting said flow inlet means connection and said flow outlet means connection.
3. The coriolis mass flowmeter of claim 1 characterized in that said flow tube comprises a first flow tube and a second flow tube, said first flow tube having a cross section that is asymmetric in stiffness in two orthogonal directions relative to a cross section of said second flow tube.
4. The coriolis mass flowmeter of claim 1 wherein the outer surface of said flange sealing disk comprises a seal waterline.
5. The coriolis mass flowmeter of claim 4 wherein said flange seal disk and said flow tube are of corrosion resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220444544.7U CN217504883U (en) | 2022-03-02 | 2022-03-02 | Coriolis mass flowmeter with non-circular cross section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220444544.7U CN217504883U (en) | 2022-03-02 | 2022-03-02 | Coriolis mass flowmeter with non-circular cross section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217504883U true CN217504883U (en) | 2022-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220444544.7U Active CN217504883U (en) | 2022-03-02 | 2022-03-02 | Coriolis mass flowmeter with non-circular cross section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217504883U (en) |
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2022
- 2022-03-02 CN CN202220444544.7U patent/CN217504883U/en active Active
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