CN217358636U - Ultrasonic metering device without front and rear straight pipe sections - Google Patents
Ultrasonic metering device without front and rear straight pipe sections Download PDFInfo
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- CN217358636U CN217358636U CN202221390313.9U CN202221390313U CN217358636U CN 217358636 U CN217358636 U CN 217358636U CN 202221390313 U CN202221390313 U CN 202221390313U CN 217358636 U CN217358636 U CN 217358636U
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Abstract
The utility model relates to a straight tube section's ultrasonic wave metering device around need not. The flow meter comprises a flow meter body, a flow channel assembly, a flow inlet, a flow outlet, a first fixing groove, a second fixing groove, a first fixing groove and a second fixing groove, wherein one side of the flow meter body is provided with the air inlet, the other side of the flow meter body is provided with the air outlet, an air inlet inclined plane is arranged between the air inlet and the air outlet and is communicated with the top of the flow meter body; the air inlet inclined plane, the first fixing groove and the bottom plate of the flowmeter body are matched to form an air outlet cavity, and air entering from the air inlet is quickly scattered through the air inlet inclined plane and filled in the flowmeter cavity, enters the air outlet cavity through the flow channel assembly and the vent hole, and is finally discharged from the air outlet. The utility model discloses an air inlet inclined plane carries out the water conservancy diversion to air inlet gas, makes in its quick and even whole flowmeter cavity of filling, reentries the runner subassembly for gas outflow is more smooth and easy, thereby the straight tube section has just played the stationary flow effect around not needing.
Description
Technical Field
The utility model relates to a straight tube section's ultrasonic wave metering device around need not.
Background
In order to improve the measurement accuracy of the ultrasonic flowmeter, the stability and uniformity of gas flow need to be improved, and the conventional implementation scheme is that front and rear straight pipe sections are added to an air inlet and an air outlet of the ultrasonic flowmeter for rectification and flow stabilization, so that the cost is undoubtedly increased; there are also solutions that eliminate the front and rear straight sections, but face the following problems:
1) the ultrasonic flowmeter cannot reduce or does not obviously reduce radial pulsating flow caused by turbulent flow of the ultrasonic flowmeter, and metering errors are caused; because natural gas is not completely ideal clean gas and carries particle impurities, the probability of scouring and abrasion of the flow channel is higher when the flow rate is higher, and the maintenance cost is high;
2) when the flowmeter body meets the change of the specification requirement of the market, the flowmeter body needs to be redesigned and the mould is opened, so that the development and manufacturing cost is increased;
3) the flow guide structure of the flow channel has a limited flow guide effect, and when the flowmeter body meets the specification requirement change of the market, the flowmeter body needs to be redesigned, so that the development and manufacturing cost is increased.
4) When the specification requirement of the flowmeter body meets the market changes, the fixed structure of a new flow channel assembly needs to be redesigned, and the development and manufacturing cost is increased.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model aims to provide a straight tube section's ultrasonic wave metering device's around need not technical scheme.
The ultrasonic metering device without the front and rear straight pipe sections is characterized by comprising an upper housing, a flowmeter body, a bottom plate and a flow channel assembly, wherein the upper housing is in threaded fit with the flowmeter body; the flow meter comprises a flow meter body, a flow channel assembly and a control device, wherein one side of the flow meter body is provided with an air inlet, the other side of the flow meter body is provided with an air outlet, an air inlet inclined plane is arranged between the air inlet and the air outlet and is directly communicated with the top of the flow meter body, a first fixing groove is arranged above the flow meter body, a second fixing groove is arranged below the flow meter body, the surface of the first fixing groove is provided with an air vent, and the flow channel assembly is fixed on the air vent; the air inlet inclined plane, the first fixing groove and the bottom plate of the flowmeter body are matched to form an air outlet cavity, and air entering from the air inlet is quickly scattered through the air inlet inclined plane and filled in the flowmeter cavity, enters the air outlet cavity through the flow channel assembly and the vent hole, and is finally discharged from the air outlet.
The ultrasonic metering device without the front and rear straight pipe sections is characterized in that a first sealing gasket arranged between the upper housing and the flowmeter body is attached to a first fixing groove.
The ultrasonic metering device without the front and rear straight pipe sections is characterized in that a second sealing gasket arranged between a flowmeter body and a bottom plate is attached to a second fixing groove.
The ultrasonic metering device without the front and rear straight pipe sections is characterized in that at least one vent hole is arranged according to the flow.
The ultrasonic metering device without the front and rear straight pipe sections is characterized in that one vent hole is arranged, one flow channel assembly is arranged, and screw holes are formed in the periphery of the vent hole and used for fixing the flow channel assembly.
The ultrasonic metering device without the front and rear straight pipe sections is characterized in that the number of the vent holes is two, the number of the flow channel assemblies is two, two screw holes are respectively arranged at two sides and in the middle of the two vent holes, the screw holes at two sides are used for fixing a metal support, and the screw hole in the middle is used for fixing a pressing sheet; the metal support is respectively installed at two sets of runner subassemblies, and the preforming is located between two sets of runner subassemblies, sets up four screws on the preforming, and two screws in the middle cooperate with the screw hole in the middle of the air vent, and two screws of both sides respectively with the pipe spiro union of giving vent to anger of two sets of runner subassemblies.
The ultrasonic metering device without the front and rear straight pipe sections is characterized in that the runner component is rectangular or circular.
The ultrasonic metering device without the front and rear straight pipe sections is characterized in that a sealing ring is arranged between the air outlet guide pipe and the vent hole.
The utility model has the advantages that:
1) compared with the flow channel of the ultrasonic flowmeter which needs the front and the rear straight pipe sections, the flow channel device has the advantages that the flow of gas at the gas inlet is guided through the inclined plane of the gas inlet, so that the gas is quickly and uniformly filled in the whole flow channel and then enters the flow channel assembly, the gas flows out more smoothly, and the flow stabilizing effect is realized without the front and the rear straight pipe sections; in order to avoid the influence of pulsating flow in the flow of the buffer gas on the metering precision, the volume of the cavity of the gas outlet is enlarged, and the flow speed of the gas in the whole flowmeter body is slowed down, so that the metering precision is improved, the scouring of the gas flow on the flow channel is reduced, and the service life is greatly prolonged;
patent CN202122717004.X a gas ultrasonic flowmeter runner structure convenient to equipment maintenance sets up tubaeform pipe of giving vent to anger at the end of giving vent to anger of runner, is connected with the gas outlet through the sealing washer, and the problem exists: when the volume of the outlet is not large enough and the flow rate of the gas in the pipeline is very high, the gas enters the flow channel structure from the gas inlet and directly rushes to the gas outlet after being measured by the flow channel assembly. Because the gas flow is not in a laminar flow state but in a turbulent flow state with small vortex, the gas flow can collide with the wall of the gas outlet cavity to rebound, and then collides with subsequent outflow gas, so that the pulsating flow is generated when the fluid is discharged, and a metering error is generated; and the utility model discloses the scheme increases the cavity volume before the gas outlet, makes fluid directly discharge earlier after the flow channel subassembly measurement and mixes in the cavity, because of the cavity volume is enough big, little swirl can be broken up, then the gas outlet of rethread discharges, and the combustion gas stream can not produce phenomenons such as bounce-back, collision, and it is smooth and easy to flow to the effectual pulsating flow that produces because of air current and flowmeter table body collision bounce-back of having eliminated.
2) Compared with the flow passage of the ultrasonic flowmeter without front and rear straight pipe sections in the prior art, the utility model designs the integrally formed flowmeter body with the groove, which can meet the adaptive installation of a rectangular flow passage structural component or a circular flow passage structural component and simultaneously meet the adaptive installation of one, two or more flow passage structural components; when the market demand changes the flowmeter specification, need not additionally to design flowmeter table body structure, only need set up corresponding quantity's air vent in table body recess according to the specification requirement, greatly reduced the cost has realized wide range flowmeter scheme, has shortened the time of product to market.
3) Compared with the flow passage of the ultrasonic flowmeter without front and rear straight pipe sections in the prior art, the flow guide structure designed by the utility model is directly integrated on the integrally formed flowmeter body with the groove, and is a smooth inclined surface of the air inlet; in the prior art, cn202122717004.x, a flow channel structure of a gas ultrasonic flow meter, which is convenient to assemble and maintain, adopts independent vertical metal flow deflectors, and the problems in the scheme are that: when gas enters from the gas outlet and meets the vertical flow deflector, the gas flow collides with the metal flow deflector to rebound, and then collides with the subsequent inflow gas to generate pulsating flow, so that metering error is caused; the air inlet inclined plane (smooth flow deflector) ensures that the reflecting direction of the air flow is the direction of the upper housing of the flowmeter after the air flow collides with the flow deflector, so that the air flow cannot collide with the air inlet, and the air flow can more conveniently enter the upper runner assembly, thereby achieving a better flow guiding effect; and moreover, the flow guide structure is directly integrated on the integrally formed flow meter body with the groove, so that an additional component is not required, and the cost is saved.
4) Compared with the flow channel of the ultrasonic flowmeter without front and rear straight pipe sections in the prior art, in the scheme of a single flow channel component, the fixing structure designed by the utility model utilizes the matching relationship between the open pore of the flowmeter body and the screw, so that the fixing structure is more stable; when the market demand changes the flowmeter specification, when adopting the multithread way subassembly scheme, only need additionally to increase metal support and preforming, can satisfy fixed demand, need not to change whole flowmeter table body scheme, saved the cost.
Drawings
FIG. 1 is a schematic structural diagram of an ultrasonic metering device;
fig. 2 is a cross-sectional view of the present invention;
FIG. 3 is a first schematic view of a single flow path assembly version of the present invention;
FIG. 4 is a second schematic view of a single flow path assembly version of the present invention;
FIG. 5 is an exploded view of a single flow channel assembly embodiment of the present invention;
FIG. 6 is a first schematic flow meter body of the dual flow path assembly version of the present invention;
FIG. 7 is a schematic view of a flow meter body according to the dual flow path assembly scheme of the present invention;
FIG. 8 is an exploded view of a dual flow passage assembly arrangement of the present invention;
fig. 9 is a schematic view of the double flow passage assembly of the present invention after assembly;
in the figure: the flowmeter comprises an upper cover shell 1, a flowmeter body 2, an air inlet inclined plane 201, a vent hole 202, a first fixing groove 203, an air outlet cavity 204, a second fixing groove 205, a bottom plate 3, an air inlet 4, an air outlet 5, a first sealing gasket 6, a second sealing gasket 7, a flow channel assembly 8, a sealing ring 9, a metal support 10, a pressing sheet 11 and an air outlet guide pipe 12.
Detailed Description
The invention will be further explained with reference to the drawings in the following description:
an ultrasonic metering device without front and rear straight pipe sections comprises an upper housing, a flowmeter body, a bottom plate and a flow channel assembly, wherein the flow channel assembly can be rectangular or circular, the upper housing is in threaded fit with the flowmeter body, the flowmeter body is in threaded fit with the bottom plate, and the bottom plate and the flowmeter body can be disassembled to form a design structure, so that the flowmeter can be cleaned on the premise of not disassembling the flow channel assembly; an air inlet is formed in one side of a flowmeter body, an air outlet is formed in the other side of the flowmeter body, an air inlet inclined plane is arranged between the air inlet and the air outlet and is communicated with the top of the flowmeter body, incoming air flow is directly beaten on the metal air inlet inclined plane 201, so that the air can be quickly scattered by the inclined plane and is filled in a flowmeter cavity, the air is fully mixed, a first fixing groove is formed above the flowmeter body, a first sealing gasket arranged between an upper housing and the flowmeter body is attached to the first fixing groove, a second fixing groove is arranged below the flowmeter body, a second sealing gasket arranged between the flowmeter body and a bottom plate is attached to the second fixing groove, vent holes are formed in the surface of the first fixing groove, at least one vent hole is formed in the flow direction, and a flow channel assembly is fixed on the vent holes; the air inlet inclined plane, the first fixing groove and the bottom plate of the flowmeter body are matched to form an air outlet cavity, and air entering from the air inlet is quickly scattered through the air inlet inclined plane and filled in the flowmeter cavity, enters the air outlet cavity through the flow channel assembly and the vent hole, and is finally discharged from the air outlet.
The first fixing groove 203 and the mounting groove of the first sealing gasket 6 are in the same horizontal plane, so that the first sealing gasket 6 is prevented from being jacked up; the second fixing groove 205 is in the same horizontal plane as the mounting groove of the second gasket 7, ensuring that the second gasket 7 is not jacked up.
When the vent hole is provided with one, the flow channel assembly is provided with one, and the periphery of the vent hole is provided with screw holes for fixing the flow channel assembly.
When two vent holes are arranged, the two runner assemblies are correspondingly arranged, two screw holes are respectively arranged at the two sides and the middle of the two vent holes, the screw holes at the two sides are used for fixing the metal bracket, and the screw hole at the middle is used for fixing the pressing sheet; the metal support is installed respectively at two sets of runner subassemblies, and the preforming is located between two sets of runner subassemblies, sets up four screws on the preforming, and two screw in the middle of and the screw hole cooperation in the middle of the air vent, two screws of both sides respectively with the pipe spiro union of giving vent to anger of two sets of runner subassemblies, set up the sealing washer between pipe and the air vent of giving vent to anger.
The first embodiment is as follows:
when the flow channel structure adopts a single flow channel component, a second fixed groove 205 is formed on the sealing surface of the flow meter body 2 connected with the bottom plate 3. The second fixing groove 205 is opened with a convex opening to form an air outlet cavity 204 in cooperation with the flowmeter body 2 and the bottom plate 3. The upper part of the sealing surface of the flowmeter body 2 connected with the upper cover shell 1 is provided with a first fixing groove 203, and the center of the plane of one side of the flowmeter body close to the air outlet 5 is provided with a circular vent 202. The upper part of the flowmeter body 2 is provided with a first fixing groove 203 which comprises a vent hole 202 opened close to the central axis, 4 screw holes arranged around the vent hole 202 and a vent position of an air inlet inclined plane 201. Set up sealing washer 9 between runner assembly 8 and the air vent 202, runner assembly 8 prefers the cylinder chamber, goes up to establish the radome fairing, sets up the square base of integrated into one piece opening down, and the base is provided with 4 screw mounted positions, with 4 screw holes cooperations that the central symmetry set up around the air vent 202. The flow channel assembly 8 is fixed on the first fixing groove 203 in a screw fixing and sealing structure compacting mode, and when the airflow is rapidly dispersed and fills the whole flow meter cavity, the stability of the flow channel assembly 8 is kept by the fixing structure.
Example two:
when the flow channel structure adopts a double-flow channel assembly, a second fixing groove 205 is formed on the sealing surface of the flow meter body 2 connected with the bottom plate 3. The second fixing groove 205 is opened with a convex opening to form an air outlet cavity 204 in cooperation with the flowmeter body 2 and the bottom plate 3. The upper part of the sealing surface of the flowmeter body 2 connected with the upper cover shell 1 is provided with a first fixing groove 203, the plane of one side of the flowmeter body close to the air outlet 5 is provided with two air vents 202 with the same size, and the outer sides of the two air vents 202 are provided with two groups of screw holes parallel to the central axis, and the number of the two groups of screw holes is two. A set of two screw holes located on the central axis are arranged in the middle of the two vent holes 202, and the distance between the two holes is smaller than that between the two holes of the outer group.
The flow channel assembly 8 is preferably of a square columnar structure, the transducer assembly faces the air inlet 4 and the air outlet 5, a metal support 10 is arranged on the outer side of the flow channel assembly 8, the flow channel assembly 8 is connected with the metal support 10 through screws, and the metal support 10 is connected with the first fixing groove 203 through screws. The metal support 10 has the functions of fixing the flow channel assembly, so that the flow channel assembly is kept stable when being flushed by gas, and metering errors are reduced; the second function is to reduce the friction force on the gas when the gas flows through the upper cover shell 1, and the gas is quickly scattered by the metal surface and is filled in the cavity of the flowmeter, so that the gas is fully mixed. Set up preforming 11 in the middle of two runner subassemblies 8, set up outlet guide 12 at runner subassembly 8 downside, outlet guide 12 upper portion is the rectangle structure, joint runner subassembly 8, and the lower part is circular structure, and wherein the circular structure inboard sets up the stand for be connected with preforming 11. A sealing ring 9 is arranged between the air outlet guide pipe 12 and the vent hole 202. The pressing sheet 11 is arc square and is provided with two groups of vertically symmetrical screw holes, and the symmetrical lines of the two groups of screw holes are crossed. One group of 2 screw holes are connected with the upright post of the air outlet guide pipe 5, and the other group of 2 screw holes are connected with the screw holes arranged on the central axis of the first fixing groove 203 in the middle of the two air vents 202 through screws. The pressing sheet 11 is used for fixing the air outlet guide pipe 12 and preventing the single side from warping. The three sets of screw holes around the vent hole 202 are in a central symmetry relationship.
The specific installation process is as follows:
1) placing the second sealing gasket 7 into a second fixing groove 205 of the flowmeter body 2, covering the upper base plate 3, and fixing the three together by screws;
2) in the first embodiment, the seal ring 9 is installed in the seal ring groove of the flow channel assembly 8, the screws pass through the holes on the bottom plate 4 of the flow channel assembly 8, and the screws pass through the holes on the periphery of the vent hole 202 and are screwed by the nuts, so that the flow channel assembly 8 is tightly fixed on the first fixing groove 203;
in the second embodiment, two sets of air outlet conduits 12 are respectively clamped with corresponding flow channel assemblies 8, the sealing rings 9 are installed in the sealing ring grooves of the air outlet conduits 12, the installed flow channel assemblies 8, the air outlet conduits 12 and the sealing rings 9 are integrally installed on the first fixing groove 203, the pressing sheet 11 is fastened on the upright posts of the air outlet conduits 12, screws are used for penetrating through the remaining set of hole sites of the pressing sheet and penetrating through the hole sites on the central axis of the first fixing groove 203, and nuts are used for screwing, so that the flow channel assembly combination is tightly fixed on the first fixing groove 203. The metal support 10 is connected with the screw hole of the first fixing groove 203 through a screw, and the flow channel assembly 8 is connected with the metal support 10 through a screw;
3) placing the first sealing gasket 6 into a first fixing groove 203 of the flowmeter body 2, covering the upper housing 1, and fixing the three together by screws;
4) the first sealing gasket 2 is placed in an installation groove of an upper housing 1 of a flowmeter body 8, the upper housing 1 is covered, and the first sealing gasket, the upper housing 1 and the lower housing are installed and fixed together through screws, and the installation is completed at the moment.
The utility model discloses the theory of operation as follows:
when the air current in the pipeline passes through air inlet 4 and gets into the flowmeter inner chamber, because the air current that gets into is the torrent, is unfavorable for direct measurement, need to break up fast and be full of the flowmeter cavity through smooth metallic texture's air inlet inclined plane 201 for gaseous abundant mixture, when gaseous mixes in the flowmeter cavity, can produce the vortex, need to carry out the rectification through runner assembly 8 upper portion and become to measure in the laminar flow back entering runner assembly 8.
According to the specification of the flowmeter, two schemes are provided, when the ventilation volume in unit time is small, the drift diameter of an air inlet and an air outlet is small, the scheme I of the single-channel component is preferred, the channel component is preferably in a cylindrical shape, the air entering the channel cavity enters the channel component 8 and then enters the air outlet cavity 204, the uniform flow of the air flow in the whole cavity is facilitated through the buffering of the cavity, and the channel component 8 is fixed on the first fixing groove 203 in a screw fixing and sealing structure compacting mode.
When the ventilation volume in unit time is large and the drift diameter of the air outlet of the air inlet is large, the scheme II of the double-flow-channel component is preferred,
the flow channel assembly 8 is preferably of a rectangular parallelepiped structure, and the ultrasonic transducers are arranged in a direction parallel to the central axes of the gas inlet 4 and the gas outlet 5. An outlet duct 12 is provided on the underside of the flow channel assembly 8. The upper part of the air outlet guide pipe 12 is of a rectangular structure, the air outlet guide pipe is connected with the runner assembly 8 in a clamping mode, the lower part of the air outlet guide pipe is of a circular structure, and an upright column is arranged on the inner side of the circular structure and used for being connected with the pressing piece 11. In order to ensure the stability of the flow channel assembly 8 during the gas passing through, a set of metal supports 10 is arranged in the direction perpendicular to the central axis of the gas inlet 4 and the gas outlet 5 in the flow channel assembly 8. A pressing sheet 11 is arranged between the two flow passage assemblies 8, and a sealing ring 9 is arranged between the air outlet guide pipe 12 and the vent hole 202. The pressing sheet 11 is arc square and is provided with two groups of vertical symmetrical hole sites, and the symmetrical lines of the two groups of hole sites are crossed. Wherein 2 hole sites of a set are connected with the stand of pipe 5 of giving vent to anger, and the screw hole that sets up on first fixed recess 203 axis passes through the screw connection in the middle of 2 hole sites of another set and two ventilation holes 202. The pressing sheet 11 is used for fixing the air outlet guide pipe 12 and preventing the single side from warping. Three sets of screw holes around the vent 202 are in a centrosymmetric relationship.
When the airflow in the pipeline enters the inner cavity of the flowmeter through the air inlet 4, the airflow is quickly scattered through the air inlet inclined surface 201 made of smooth metal and the smooth metal support 10 and is filled in the cavity of the flowmeter, further the air entering the cavity of the flow channel enters the flow channel assembly 8, enters the air outlet cavity 204 through the outlet of the air outlet guide pipe 12, is more favorable for the uniform flow of the airflow in the whole cavity through the buffering of the cavity, and then flows out from the air outlet 5.
Further, when the market demand changes, when the flowmeter product of the bigger velocity of flow is needed, the design of the flowmeter table body need not to change, only need open the gas pocket more, additional metal support and preforming as required, can satisfy fixed needs.
The utility model discloses an above structure principle has solved and has realized accurate measurement around need not and straight tube section. When the market demand changes and needs to be changed into the flowmeter with a larger caliber, the structure of the flowmeter body does not need to be additionally designed, the number of the vent holes 202 is changed by the first fixing groove 203, the metal support 10, the pressing sheet 11 and the air outlet guide pipe 12 are additionally arranged, and the additional design of a fixing structure or the additional mold opening is not needed.
The above description is only for the purpose of implementing the present invention, and is not intended to limit the present invention. Various changes and modifications in the technology of the present invention which are obvious to those skilled in the art, within the allowable scope of the patent claims, and any equivalents or modifications made in the principle and spirit of the present invention, should be included in the scope of the claims of the present invention.
Claims (8)
1. An ultrasonic metering device without front and rear straight pipe sections is characterized by comprising an upper housing, a flowmeter body, a bottom plate and a flow channel assembly, wherein the upper housing is in threaded fit with the flowmeter body; the flow meter comprises a flow meter body, a flow channel assembly and a control device, wherein one side of the flow meter body is provided with an air inlet, the other side of the flow meter body is provided with an air outlet, an air inlet inclined plane is arranged between the air inlet and the air outlet and is directly communicated with the top of the flow meter body, a first fixing groove is arranged above the flow meter body, a second fixing groove is arranged below the flow meter body, the surface of the first fixing groove is provided with an air vent, and the flow channel assembly is fixed on the air vent; the air inlet inclined plane, the first fixing groove and the bottom plate of the flowmeter body are matched to form an air outlet cavity, and air entering from the air inlet is quickly scattered through the air inlet inclined plane and filled in the flowmeter cavity, enters the air outlet cavity through the flow channel assembly and the vent hole, and is finally discharged from the air outlet.
2. An ultrasonic metering device without front and rear straight pipe sections as claimed in claim 1, wherein a first gasket disposed between the upper casing and the meter body is fitted into the first fixing groove.
3. An ultrasonic meter according to claim 1, wherein a second gasket is provided between the meter body and the bottom plate and is fitted to the second fixing groove.
4. An ultrasonic meter as claimed in claim 1 wherein at least one vent is provided depending on the flow rate.
5. An ultrasonic meter for straight pipe sections without front and rear straight pipe sections as claimed in claim 1 wherein there is one vent hole, one flow channel assembly and screw holes around the vent hole for fixing the flow channel assembly.
6. The ultrasonic metering device without the front and rear straight pipe sections as claimed in claim 1, wherein the number of the vent holes is two, the number of the flow channel components is two, two screw holes are respectively arranged at two sides and in the middle of the two vent holes, the screw holes at two sides are used for fixing the metal bracket, and the screw hole in the middle is used for fixing the pressing sheet; the metal support is respectively installed at two sets of runner subassemblies, and the preforming is located between two sets of runner subassemblies, sets up four screws on the preforming, and two screws in the middle cooperate with the screw hole in the middle of the air vent, and two screws of both sides respectively with the pipe spiro union of giving vent to anger of two sets of runner subassemblies.
7. An ultrasonic meter according to claim 1 wherein the flow conduit assembly is rectangular or circular.
8. An ultrasonic metering device without front and rear straight pipe sections as claimed in claim 6 wherein a sealing ring is provided between the outlet conduit and the vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221390313.9U CN217358636U (en) | 2022-06-06 | 2022-06-06 | Ultrasonic metering device without front and rear straight pipe sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221390313.9U CN217358636U (en) | 2022-06-06 | 2022-06-06 | Ultrasonic metering device without front and rear straight pipe sections |
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| Publication Number | Publication Date |
|---|---|
| CN217358636U true CN217358636U (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221390313.9U Active CN217358636U (en) | 2022-06-06 | 2022-06-06 | Ultrasonic metering device without front and rear straight pipe sections |
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| Country | Link |
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| CN (1) | CN217358636U (en) |
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2022
- 2022-06-06 CN CN202221390313.9U patent/CN217358636U/en active Active
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